/**
 * gpu.js
 * http://gpu.rocks/
 *
 * GPU Accelerated JavaScript
 *
 * @version 2.0.0-rc.14
 * @date Mon May 20 2019 18:50:57 GMT-0400 (Eastern Daylight Time)
 *
 * @license MIT
 * The MIT License
 *
 * Copyright (c) 2019 gpu.js Team
 */(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
function glWiretap(gl, options = {}) {
  const {
    contextName = 'gl',
    throwGetError,
    useTrackablePrimitives,
    readPixelsFile,
    recording = [],
    variables = {},
  } = options;
  const proxy = new Proxy(gl, { get: listen });
  const contextVariables = [];
  const entityNames = {};
  let imageCount = 0;
  let indent = '';
  let readPixelsVariableName;
  return proxy;
  function listen(obj, property) {
    switch (property) {
      case 'addComment': return addComment;
      case 'checkThrowError': return checkThrowError;
      case 'getReadPixelsVariableName': return readPixelsVariableName;
      case 'insertVariable': return insertVariable;
      case 'reset': return reset;
      case 'setIndent': return setIndent;
      case 'toString': return toString;
    }
    if (typeof gl[property] === 'function') {
      return function() { 
        switch (property) {
          case 'getError':
            if (throwGetError) {
              recording.push(`${indent}if (${contextName}.getError() !== ${contextName}.NONE) throw new Error('error');`);
            } else {
              recording.push(`${indent}${contextName}.getError();`); 
            }
            return gl.getError();
          case 'getExtension': {
            const variableName = `${contextName}Variables${contextVariables.length}`;
            recording.push(`${indent}const ${variableName} = ${contextName}.getExtension('${arguments[0]}');`);
            const extension = gl.getExtension(arguments[0]);
            if (extension && typeof extension === 'object') {
              const tappedExtension = glExtensionWiretap(extension, {
                getEntity,
                useTrackablePrimitives,
                recording,
                contextName: variableName,
                contextVariables,
                variables,
                indent,
              });
              contextVariables.push(tappedExtension);
              return tappedExtension;
            } else {
              contextVariables.push(null);
            }
            return extension;
          }
          case 'readPixels':
            const i = contextVariables.indexOf(arguments[6]);
            let targetVariableName;
            if (i === -1) {
              const variableName = getVariableName(arguments[6]);
              if (variableName) {
                targetVariableName = variableName;
                recording.push(`${indent}${variableName}`);
              } else {
                targetVariableName = `${contextName}Variable${contextVariables.length}`;
                contextVariables.push(arguments[6]);
                recording.push(`${indent}const ${targetVariableName} = new ${arguments[6].constructor.name}(${arguments[6].length});`);
              }
            } else {
              targetVariableName = `${contextName}Variable${i}`;
            }
            readPixelsVariableName = targetVariableName;
            recording.push(`${indent}${contextName}.readPixels(${arguments[0]}, ${arguments[1]}, ${arguments[2]}, ${arguments[3]}, ${getEntity(arguments[4])}, ${getEntity(arguments[5])}, ${targetVariableName});`);
            if (readPixelsFile) {
              writePPM(arguments[2], arguments[3]);
            }
            return gl.readPixels.apply(gl, arguments);
          case 'drawBuffers':
            recording.push(`${indent}${contextName}.drawBuffers([${argumentsToString(arguments[0], { contextName, contextVariables, getEntity, addVariable, variables } )}]);`);
            return gl.drawBuffers(arguments[0]);
        }
        let result = gl[property].apply(gl, arguments);
        switch (typeof result) {
          case 'undefined':
            recording.push(`${indent}${methodCallToString(property, arguments)};`);
            return;
          case 'number':
          case 'boolean':
            if (useTrackablePrimitives && contextVariables.indexOf(trackablePrimitive(result)) === -1) {
              recording.push(`${indent}const ${contextName}Variable${contextVariables.length} = ${methodCallToString(property, arguments)};`);
              contextVariables.push(result = trackablePrimitive(result));
              break;
            }
          default:
            if (result === null) {
              recording.push(`${methodCallToString(property, arguments)};`);
            } else {
              recording.push(`${indent}const ${contextName}Variable${contextVariables.length} = ${methodCallToString(property, arguments)};`);
            }

            contextVariables.push(result);
        }
        return result;
      }
    }
    entityNames[gl[property]] = property;
    return gl[property];
  }
  function toString() {
    return recording.join('\n');
  }
  function reset() {
    while (recording.length > 0) {
      recording.pop();
    }
  }
  function insertVariable(name, value) {
    variables[name] = value;
  }
  function getEntity(value) {
    const name = entityNames[value];
    if (name) {
      return contextName + '.' + name;
    }
    return value;
  }
  function setIndent(spaces) {
    indent = ' '.repeat(spaces);
  }
  function addVariable(value, source) {
    const variableName = `${contextName}Variable${contextVariables.length}`;
    recording.push(`${indent}const ${variableName} = ${source};`);
    contextVariables.push(value);
    return variableName;
  }
  function writePPM(width, height) {
    const sourceVariable = `${contextName}Variable${contextVariables.length}`;
    const imageVariable = `imageDatum${imageCount}`;
    recording.push(`${indent}let ${imageVariable} = ["P3\\n# ${readPixelsFile}.ppm\\n", ${width}, ' ', ${height}, "\\n255\\n"].join("");`);
    recording.push(`${indent}for (let i = 0; i < ${imageVariable}.length; i += 4) {`);
    recording.push(`${indent}  ${imageVariable} += ${sourceVariable}[i] + ' ' + ${sourceVariable}[i + 1] + ' ' + ${sourceVariable}[i + 2] + ' ';`);
    recording.push(`${indent}}`);
    recording.push(`${indent}if (typeof require !== "undefined") {`);
    recording.push(`${indent}  require('fs').writeFileSync('./${readPixelsFile}.ppm', ${imageVariable});`);
    recording.push(`${indent}}`);
    imageCount++;
  }
  function addComment(value) {
    recording.push(`${indent}// ${value}`);
  }
  function checkThrowError() {
    recording.push(`${indent}(() => {
${indent}const error = ${contextName}.getError();
${indent}if (error !== ${contextName}.NONE) {
${indent}  const names = Object.getOwnPropertyNames(gl);
${indent}  for (let i = 0; i < names.length; i++) {
${indent}    const name = names[i];
${indent}    if (${contextName}[name] === error) {
${indent}      throw new Error('${contextName} threw ' + name);
${indent}    }
${indent}  }
${indent}}
${indent}})();`);
  }
  function methodCallToString(method, args) {
    return `${contextName}.${method}(${argumentsToString(args, { contextName, contextVariables, getEntity, addVariable, variables })})`;
  }

  function getVariableName(value) {
    if (variables) {
      for (const name in variables) {
        if (variables[name] === value) {
          return name;
        }
      }
    }
    return null;
  }
}

function glExtensionWiretap(extension, options) {
  const proxy = new Proxy(extension, { get: listen });
  const extensionEntityNames = {};
  const {
    contextName,
    contextVariables,
    getEntity,
    useTrackablePrimitives,
    recording,
    variables,
    indent,
  } = options;
  return proxy;
  function listen(obj, property) {
    if (typeof obj[property] === 'function') {
      return function() {
        switch (property) {
          case 'drawBuffersWEBGL':
            recording.push(`${indent}${contextName}.drawBuffersWEBGL([${argumentsToString(arguments[0], { contextName, contextVariables, getEntity: getExtensionEntity, addVariable, variables })}]);`);
            return extension.drawBuffersWEBGL(arguments[0]);
        }
        let result = extension[property].apply(extension, arguments);
        switch (typeof result) {
          case 'undefined':
            recording.push(`${indent}${methodCallToString(property, arguments)};`);
            return;
          case 'number':
          case 'boolean':
            if (useTrackablePrimitives && contextVariables.indexOf(trackablePrimitive(result)) === -1) {
              recording.push(`${indent}const ${contextName}Variable${contextVariables.length} = ${methodCallToString(property, arguments)};`);
              contextVariables.push(result = trackablePrimitive(result));
            } else {
              recording.push(`${indent}const ${contextName}Variable${contextVariables.length} = ${methodCallToString(property, arguments)};`);
              contextVariables.push(result);
            }
            break;
          default:
            if (result === null) {
              recording.push(`${methodCallToString(property, arguments)};`);
            } else {
              recording.push(`${indent}const ${contextName}Variable${contextVariables.length} = ${methodCallToString(property, arguments)};`);
            }
            contextVariables.push(result);
        }
        return result;
      };
    }
    extensionEntityNames[extension[property]] = property;
    return extension[property];
  }

  function getExtensionEntity(value) {
    if (extensionEntityNames.hasOwnProperty(value)) {
      return `${contextName}.${extensionEntityNames[value]}`;
    }
    return getEntity(value);
  }

  function methodCallToString(method, args) {
    return `${contextName}.${method}(${argumentsToString(args, { contextName, contextVariables, getEntity: getExtensionEntity, addVariable, variables })})`;
  }

  function addVariable(value, source) {
    const variableName = `${contextName}Variable${contextVariables.length}`;
    contextVariables.push(value);
    recording.push(`${indent}const ${variableName} = ${source};`);
    return variableName;
  }
}

function argumentsToString(args, options) {
  const { variables } = options;
  return (Array.from(args).map((arg) => {
    const variableName = getVariableName(arg);
    if (variableName) {
      return variableName;
    }
    return argumentToString(arg, options);
  }).join(', '));

  function getVariableName(value) {
    if (variables) {
      for (const name in variables) {
        if (variables[name] === value) {
          return name;
        }
      }
    }
    return null;
  }
}

function argumentToString(arg, options) {
  const { contextName, contextVariables, getEntity, addVariable } = options;
  if (typeof arg === 'undefined') {
    return 'undefined';
  }
  if (arg === null) {
    return 'null';
  }
  const i = contextVariables.indexOf(arg);
  if (i > -1) {
    return `${contextName}Variable${i}`;
  }
  switch (arg.constructor.name) {
    case 'String':
      const hasLines = /\n/.test(arg);
      const hasSingleQuotes = /'/.test(arg);
      const hasDoubleQuotes = /"/.test(arg);
      if (hasLines) {
        return '`' + arg + '`';
      } else if (hasSingleQuotes && !hasDoubleQuotes) {
        return '"' + arg + '"';
      } else if (!hasSingleQuotes && hasDoubleQuotes) {
        return "'" + arg + "'";
      } else {
        return '\'' + arg + '\'';
      }
    case 'Number': return getEntity(arg);
    case 'Boolean': return getEntity(arg);
    case 'Array':
      return addVariable(arg, `new ${arg.constructor.name}(${Array.from(arg).join(',')})`);
    case 'Float32Array':
    case 'Uint8Array':
    case 'Uint16Array':
    case 'Int32Array':
      return addVariable(arg, `new ${arg.constructor.name}(${JSON.stringify(Array.from(arg))})`);
    default:
      throw new Error('unrecognized argument');
  }
}

function trackablePrimitive(value) {
  return new value.constructor(value);
}

if (typeof module !== 'undefined') {
  module.exports = { glWiretap, glExtensionWiretap };
}

if (typeof window !== 'undefined') {
  glWiretap.glExtensionWiretap = glExtensionWiretap;
  window.glWiretap = glWiretap;
}

},{}],2:[function(require,module,exports){
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
	typeof define === 'function' && define.amd ? define(['exports'], factory) :
	(factory((global.acorn = {})));
}(this, (function (exports) { 'use strict';


var reservedWords = {
  3: "abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile",
  5: "class enum extends super const export import",
  6: "enum",
  strict: "implements interface let package private protected public static yield",
  strictBind: "eval arguments"
};


var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";

var keywords = {
  5: ecma5AndLessKeywords,
  6: ecma5AndLessKeywords + " const class extends export import super"
};

var keywordRelationalOperator = /^in(stanceof)?$/;



var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0560-\u0588\u05d0-\u05ea\u05ef-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u0860-\u086a\u08a0-\u08b4\u08b6-\u08bd\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u09fc\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1878\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1c90-\u1cba\u1cbd-\u1cbf\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312f\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fef\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7b9\ua7f7-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua8fe\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab65\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc";
var nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d3-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u09fe\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0afa-\u0aff\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c04\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d00-\u0d03\u0d3b\u0d3c\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d82\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf2-\u1cf4\u1cf7-\u1cf9\u1dc0-\u1df9\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua8ff-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f";

var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");

nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;


var astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,14,29,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,28,43,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,14,35,477,28,11,0,9,21,190,52,76,44,33,24,27,35,30,0,12,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,54,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,86,26,230,43,117,63,32,0,257,0,11,39,8,0,22,0,12,39,3,3,20,0,35,56,264,8,2,36,18,0,50,29,113,6,2,1,2,37,22,0,26,5,2,1,2,31,15,0,328,18,270,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,689,63,129,68,12,0,67,12,65,1,31,6129,15,754,9486,286,82,395,2309,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,4149,196,60,67,1213,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42710,42,4148,12,221,3,5761,15,7472,3104,541];

var astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,574,3,9,9,525,10,176,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,6,1,45,0,13,2,49,13,9,3,4,9,83,11,7,0,161,11,6,9,7,3,56,1,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,5,0,82,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,243,14,166,9,280,9,41,6,2,3,9,0,10,10,47,15,406,7,2,7,17,9,57,21,2,13,123,5,4,0,2,1,2,6,2,0,9,9,49,4,2,1,2,4,9,9,330,3,19306,9,135,4,60,6,26,9,1016,45,17,3,19723,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,2214,6,110,6,6,9,792487,239];

function isInAstralSet(code, set) {
  var pos = 0x10000;
  for (var i = 0; i < set.length; i += 2) {
    pos += set[i];
    if (pos > code) { return false }
    pos += set[i + 1];
    if (pos >= code) { return true }
  }
}


function isIdentifierStart(code, astral) {
  if (code < 65) { return code === 36 }
  if (code < 91) { return true }
  if (code < 97) { return code === 95 }
  if (code < 123) { return true }
  if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) }
  if (astral === false) { return false }
  return isInAstralSet(code, astralIdentifierStartCodes)
}


function isIdentifierChar(code, astral) {
  if (code < 48) { return code === 36 }
  if (code < 58) { return true }
  if (code < 65) { return false }
  if (code < 91) { return true }
  if (code < 97) { return code === 95 }
  if (code < 123) { return true }
  if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) }
  if (astral === false) { return false }
  return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes)
}





var TokenType = function TokenType(label, conf) {
  if ( conf === void 0 ) conf = {};

  this.label = label;
  this.keyword = conf.keyword;
  this.beforeExpr = !!conf.beforeExpr;
  this.startsExpr = !!conf.startsExpr;
  this.isLoop = !!conf.isLoop;
  this.isAssign = !!conf.isAssign;
  this.prefix = !!conf.prefix;
  this.postfix = !!conf.postfix;
  this.binop = conf.binop || null;
  this.updateContext = null;
};

function binop(name, prec) {
  return new TokenType(name, {beforeExpr: true, binop: prec})
}
var beforeExpr = {beforeExpr: true};
var startsExpr = {startsExpr: true};


var keywords$1 = {};

function kw(name, options) {
  if ( options === void 0 ) options = {};

  options.keyword = name;
  return keywords$1[name] = new TokenType(name, options)
}

var types = {
  num: new TokenType("num", startsExpr),
  regexp: new TokenType("regexp", startsExpr),
  string: new TokenType("string", startsExpr),
  name: new TokenType("name", startsExpr),
  eof: new TokenType("eof"),

  bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}),
  bracketR: new TokenType("]"),
  braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}),
  braceR: new TokenType("}"),
  parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}),
  parenR: new TokenType(")"),
  comma: new TokenType(",", beforeExpr),
  semi: new TokenType(";", beforeExpr),
  colon: new TokenType(":", beforeExpr),
  dot: new TokenType("."),
  question: new TokenType("?", beforeExpr),
  arrow: new TokenType("=>", beforeExpr),
  template: new TokenType("template"),
  invalidTemplate: new TokenType("invalidTemplate"),
  ellipsis: new TokenType("...", beforeExpr),
  backQuote: new TokenType("`", startsExpr),
  dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}),


  eq: new TokenType("=", {beforeExpr: true, isAssign: true}),
  assign: new TokenType("_=", {beforeExpr: true, isAssign: true}),
  incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}),
  prefix: new TokenType("!/~", {beforeExpr: true, prefix: true, startsExpr: true}),
  logicalOR: binop("||", 1),
  logicalAND: binop("&&", 2),
  bitwiseOR: binop("|", 3),
  bitwiseXOR: binop("^", 4),
  bitwiseAND: binop("&", 5),
  equality: binop("==/!=/===/!==", 6),
  relational: binop("</>/<=/>=", 7),
  bitShift: binop("<</>>/>>>", 8),
  plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),
  modulo: binop("%", 10),
  star: binop("*", 10),
  slash: binop("/", 10),
  starstar: new TokenType("**", {beforeExpr: true}),

  _break: kw("break"),
  _case: kw("case", beforeExpr),
  _catch: kw("catch"),
  _continue: kw("continue"),
  _debugger: kw("debugger"),
  _default: kw("default", beforeExpr),
  _do: kw("do", {isLoop: true, beforeExpr: true}),
  _else: kw("else", beforeExpr),
  _finally: kw("finally"),
  _for: kw("for", {isLoop: true}),
  _function: kw("function", startsExpr),
  _if: kw("if"),
  _return: kw("return", beforeExpr),
  _switch: kw("switch"),
  _throw: kw("throw", beforeExpr),
  _try: kw("try"),
  _var: kw("var"),
  _const: kw("const"),
  _while: kw("while", {isLoop: true}),
  _with: kw("with"),
  _new: kw("new", {beforeExpr: true, startsExpr: true}),
  _this: kw("this", startsExpr),
  _super: kw("super", startsExpr),
  _class: kw("class", startsExpr),
  _extends: kw("extends", beforeExpr),
  _export: kw("export"),
  _import: kw("import"),
  _null: kw("null", startsExpr),
  _true: kw("true", startsExpr),
  _false: kw("false", startsExpr),
  _in: kw("in", {beforeExpr: true, binop: 7}),
  _instanceof: kw("instanceof", {beforeExpr: true, binop: 7}),
  _typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}),
  _void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}),
  _delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true})
};


var lineBreak = /\r\n?|\n|\u2028|\u2029/;
var lineBreakG = new RegExp(lineBreak.source, "g");

function isNewLine(code, ecma2019String) {
  return code === 10 || code === 13 || (!ecma2019String && (code === 0x2028 || code === 0x2029))
}

var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;

var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g;

var ref = Object.prototype;
var hasOwnProperty = ref.hasOwnProperty;
var toString = ref.toString;


function has(obj, propName) {
  return hasOwnProperty.call(obj, propName)
}

var isArray = Array.isArray || (function (obj) { return (
  toString.call(obj) === "[object Array]"
); });


var Position = function Position(line, col) {
  this.line = line;
  this.column = col;
};

Position.prototype.offset = function offset (n) {
  return new Position(this.line, this.column + n)
};

var SourceLocation = function SourceLocation(p, start, end) {
  this.start = start;
  this.end = end;
  if (p.sourceFile !== null) { this.source = p.sourceFile; }
};


function getLineInfo(input, offset) {
  for (var line = 1, cur = 0;;) {
    lineBreakG.lastIndex = cur;
    var match = lineBreakG.exec(input);
    if (match && match.index < offset) {
      ++line;
      cur = match.index + match[0].length;
    } else {
      return new Position(line, offset - cur)
    }
  }
}


var defaultOptions = {
  ecmaVersion: 7,
  sourceType: "script",
  onInsertedSemicolon: null,
  onTrailingComma: null,
  allowReserved: null,
  allowReturnOutsideFunction: false,
  allowImportExportEverywhere: false,
  allowAwaitOutsideFunction: false,
  allowHashBang: false,
  locations: false,
  onToken: null,
  onComment: null,
  ranges: false,
  program: null,
  sourceFile: null,
  directSourceFile: null,
  preserveParens: false,
  plugins: {}
};


function getOptions(opts) {
  var options = {};

  for (var opt in defaultOptions)
    { options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]; }

  if (options.ecmaVersion >= 2015)
    { options.ecmaVersion -= 2009; }

  if (options.allowReserved == null)
    { options.allowReserved = options.ecmaVersion < 5; }

  if (isArray(options.onToken)) {
    var tokens = options.onToken;
    options.onToken = function (token) { return tokens.push(token); };
  }
  if (isArray(options.onComment))
    { options.onComment = pushComment(options, options.onComment); }

  return options
}

function pushComment(options, array) {
  return function(block, text, start, end, startLoc, endLoc) {
    var comment = {
      type: block ? "Block" : "Line",
      value: text,
      start: start,
      end: end
    };
    if (options.locations)
      { comment.loc = new SourceLocation(this, startLoc, endLoc); }
    if (options.ranges)
      { comment.range = [start, end]; }
    array.push(comment);
  }
}

var plugins = {};

function keywordRegexp(words) {
  return new RegExp("^(?:" + words.replace(/ /g, "|") + ")$")
}

var Parser = function Parser(options, input, startPos) {
  this.options = options = getOptions(options);
  this.sourceFile = options.sourceFile;
  this.keywords = keywordRegexp(keywords[options.ecmaVersion >= 6 ? 6 : 5]);
  var reserved = "";
  if (!options.allowReserved) {
    for (var v = options.ecmaVersion;; v--)
      { if (reserved = reservedWords[v]) { break } }
    if (options.sourceType === "module") { reserved += " await"; }
  }
  this.reservedWords = keywordRegexp(reserved);
  var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict;
  this.reservedWordsStrict = keywordRegexp(reservedStrict);
  this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + reservedWords.strictBind);
  this.input = String(input);

  this.containsEsc = false;

  this.loadPlugins(options.plugins);


  if (startPos) {
    this.pos = startPos;
    this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1;
    this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
  } else {
    this.pos = this.lineStart = 0;
    this.curLine = 1;
  }

  this.type = types.eof;
  this.value = null;
  this.start = this.end = this.pos;
  this.startLoc = this.endLoc = this.curPosition();

  this.lastTokEndLoc = this.lastTokStartLoc = null;
  this.lastTokStart = this.lastTokEnd = this.pos;

  this.context = this.initialContext();
  this.exprAllowed = true;

  this.inModule = options.sourceType === "module";
  this.strict = this.inModule || this.strictDirective(this.pos);

  this.potentialArrowAt = -1;

  this.inFunction = this.inGenerator = this.inAsync = false;
  this.yieldPos = this.awaitPos = 0;
  this.labels = [];

  if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
    { this.skipLineComment(2); }

  this.scopeStack = [];
  this.enterFunctionScope();

  this.regexpState = null;
};

Parser.prototype.isKeyword = function isKeyword (word) { return this.keywords.test(word) };
Parser.prototype.isReservedWord = function isReservedWord (word) { return this.reservedWords.test(word) };

Parser.prototype.extend = function extend (name, f) {
  this[name] = f(this[name]);
};

Parser.prototype.loadPlugins = function loadPlugins (pluginConfigs) {
    var this$1 = this;

  for (var name in pluginConfigs) {
    var plugin = plugins[name];
    if (!plugin) { throw new Error("Plugin '" + name + "' not found") }
    plugin(this$1, pluginConfigs[name]);
  }
};

Parser.prototype.parse = function parse () {
  var node = this.options.program || this.startNode();
  this.nextToken();
  return this.parseTopLevel(node)
};

var pp = Parser.prototype;


var literal = /^(?:'((?:\\.|[^'])*?)'|"((?:\\.|[^"])*?)"|;)/;
pp.strictDirective = function(start) {
  var this$1 = this;

  for (;;) {
    skipWhiteSpace.lastIndex = start;
    start += skipWhiteSpace.exec(this$1.input)[0].length;
    var match = literal.exec(this$1.input.slice(start));
    if (!match) { return false }
    if ((match[1] || match[2]) === "use strict") { return true }
    start += match[0].length;
  }
};


pp.eat = function(type) {
  if (this.type === type) {
    this.next();
    return true
  } else {
    return false
  }
};


pp.isContextual = function(name) {
  return this.type === types.name && this.value === name && !this.containsEsc
};


pp.eatContextual = function(name) {
  if (!this.isContextual(name)) { return false }
  this.next();
  return true
};


pp.expectContextual = function(name) {
  if (!this.eatContextual(name)) { this.unexpected(); }
};


pp.canInsertSemicolon = function() {
  return this.type === types.eof ||
    this.type === types.braceR ||
    lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
};

pp.insertSemicolon = function() {
  if (this.canInsertSemicolon()) {
    if (this.options.onInsertedSemicolon)
      { this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }
    return true
  }
};


pp.semicolon = function() {
  if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
};

pp.afterTrailingComma = function(tokType, notNext) {
  if (this.type === tokType) {
    if (this.options.onTrailingComma)
      { this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
    if (!notNext)
      { this.next(); }
    return true
  }
};


pp.expect = function(type) {
  this.eat(type) || this.unexpected();
};


pp.unexpected = function(pos) {
  this.raise(pos != null ? pos : this.start, "Unexpected token");
};

function DestructuringErrors() {
  this.shorthandAssign =
  this.trailingComma =
  this.parenthesizedAssign =
  this.parenthesizedBind =
  this.doubleProto =
    -1;
}

pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
  if (!refDestructuringErrors) { return }
  if (refDestructuringErrors.trailingComma > -1)
    { this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); }
  var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind;
  if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); }
};

pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
  if (!refDestructuringErrors) { return false }
  var shorthandAssign = refDestructuringErrors.shorthandAssign;
  var doubleProto = refDestructuringErrors.doubleProto;
  if (!andThrow) { return shorthandAssign >= 0 || doubleProto >= 0 }
  if (shorthandAssign >= 0)
    { this.raise(shorthandAssign, "Shorthand property assignments are valid only in destructuring patterns"); }
  if (doubleProto >= 0)
    { this.raiseRecoverable(doubleProto, "Redefinition of __proto__ property"); }
};

pp.checkYieldAwaitInDefaultParams = function() {
  if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
    { this.raise(this.yieldPos, "Yield expression cannot be a default value"); }
  if (this.awaitPos)
    { this.raise(this.awaitPos, "Await expression cannot be a default value"); }
};

pp.isSimpleAssignTarget = function(expr) {
  if (expr.type === "ParenthesizedExpression")
    { return this.isSimpleAssignTarget(expr.expression) }
  return expr.type === "Identifier" || expr.type === "MemberExpression"
};

var pp$1 = Parser.prototype;



pp$1.parseTopLevel = function(node) {
  var this$1 = this;

  var exports = {};
  if (!node.body) { node.body = []; }
  while (this.type !== types.eof) {
    var stmt = this$1.parseStatement(true, true, exports);
    node.body.push(stmt);
  }
  this.adaptDirectivePrologue(node.body);
  this.next();
  if (this.options.ecmaVersion >= 6) {
    node.sourceType = this.options.sourceType;
  }
  return this.finishNode(node, "Program")
};

var loopLabel = {kind: "loop"};
var switchLabel = {kind: "switch"};

pp$1.isLet = function() {
  if (this.options.ecmaVersion < 6 || !this.isContextual("let")) { return false }
  skipWhiteSpace.lastIndex = this.pos;
  var skip = skipWhiteSpace.exec(this.input);
  var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
  if (nextCh === 91 || nextCh === 123) { return true } 
  if (isIdentifierStart(nextCh, true)) {
    var pos = next + 1;
    while (isIdentifierChar(this.input.charCodeAt(pos), true)) { ++pos; }
    var ident = this.input.slice(next, pos);
    if (!keywordRelationalOperator.test(ident)) { return true }
  }
  return false
};

pp$1.isAsyncFunction = function() {
  if (this.options.ecmaVersion < 8 || !this.isContextual("async"))
    { return false }

  skipWhiteSpace.lastIndex = this.pos;
  var skip = skipWhiteSpace.exec(this.input);
  var next = this.pos + skip[0].length;
  return !lineBreak.test(this.input.slice(this.pos, next)) &&
    this.input.slice(next, next + 8) === "function" &&
    (next + 8 === this.input.length || !isIdentifierChar(this.input.charAt(next + 8)))
};


pp$1.parseStatement = function(declaration, topLevel, exports) {
  var starttype = this.type, node = this.startNode(), kind;

  if (this.isLet()) {
    starttype = types._var;
    kind = "let";
  }


  switch (starttype) {
  case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
  case types._debugger: return this.parseDebuggerStatement(node)
  case types._do: return this.parseDoStatement(node)
  case types._for: return this.parseForStatement(node)
  case types._function:
    if (!declaration && this.options.ecmaVersion >= 6) { this.unexpected(); }
    return this.parseFunctionStatement(node, false)
  case types._class:
    if (!declaration) { this.unexpected(); }
    return this.parseClass(node, true)
  case types._if: return this.parseIfStatement(node)
  case types._return: return this.parseReturnStatement(node)
  case types._switch: return this.parseSwitchStatement(node)
  case types._throw: return this.parseThrowStatement(node)
  case types._try: return this.parseTryStatement(node)
  case types._const: case types._var:
    kind = kind || this.value;
    if (!declaration && kind !== "var") { this.unexpected(); }
    return this.parseVarStatement(node, kind)
  case types._while: return this.parseWhileStatement(node)
  case types._with: return this.parseWithStatement(node)
  case types.braceL: return this.parseBlock()
  case types.semi: return this.parseEmptyStatement(node)
  case types._export:
  case types._import:
    if (!this.options.allowImportExportEverywhere) {
      if (!topLevel)
        { this.raise(this.start, "'import' and 'export' may only appear at the top level"); }
      if (!this.inModule)
        { this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); }
    }
    return starttype === types._import ? this.parseImport(node) : this.parseExport(node, exports)

  default:
    if (this.isAsyncFunction()) {
      if (!declaration) { this.unexpected(); }
      this.next();
      return this.parseFunctionStatement(node, true)
    }

    var maybeName = this.value, expr = this.parseExpression();
    if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
      { return this.parseLabeledStatement(node, maybeName, expr) }
    else { return this.parseExpressionStatement(node, expr) }
  }
};

pp$1.parseBreakContinueStatement = function(node, keyword) {
  var this$1 = this;

  var isBreak = keyword === "break";
  this.next();
  if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
  else if (this.type !== types.name) { this.unexpected(); }
  else {
    node.label = this.parseIdent();
    this.semicolon();
  }

  var i = 0;
  for (; i < this.labels.length; ++i) {
    var lab = this$1.labels[i];
    if (node.label == null || lab.name === node.label.name) {
      if (lab.kind != null && (isBreak || lab.kind === "loop")) { break }
      if (node.label && isBreak) { break }
    }
  }
  if (i === this.labels.length) { this.raise(node.start, "Unsyntactic " + keyword); }
  return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
};

pp$1.parseDebuggerStatement = function(node) {
  this.next();
  this.semicolon();
  return this.finishNode(node, "DebuggerStatement")
};

pp$1.parseDoStatement = function(node) {
  this.next();
  this.labels.push(loopLabel);
  node.body = this.parseStatement(false);
  this.labels.pop();
  this.expect(types._while);
  node.test = this.parseParenExpression();
  if (this.options.ecmaVersion >= 6)
    { this.eat(types.semi); }
  else
    { this.semicolon(); }
  return this.finishNode(node, "DoWhileStatement")
};


pp$1.parseForStatement = function(node) {
  this.next();
  var awaitAt = (this.options.ecmaVersion >= 9 && (this.inAsync || (!this.inFunction && this.options.allowAwaitOutsideFunction)) && this.eatContextual("await")) ? this.lastTokStart : -1;
  this.labels.push(loopLabel);
  this.enterLexicalScope();
  this.expect(types.parenL);
  if (this.type === types.semi) {
    if (awaitAt > -1) { this.unexpected(awaitAt); }
    return this.parseFor(node, null)
  }
  var isLet = this.isLet();
  if (this.type === types._var || this.type === types._const || isLet) {
    var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
    this.next();
    this.parseVar(init$1, true, kind);
    this.finishNode(init$1, "VariableDeclaration");
    if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1 &&
        !(kind !== "var" && init$1.declarations[0].init)) {
      if (this.options.ecmaVersion >= 9) {
        if (this.type === types._in) {
          if (awaitAt > -1) { this.unexpected(awaitAt); }
        } else { node.await = awaitAt > -1; }
      }
      return this.parseForIn(node, init$1)
    }
    if (awaitAt > -1) { this.unexpected(awaitAt); }
    return this.parseFor(node, init$1)
  }
  var refDestructuringErrors = new DestructuringErrors;
  var init = this.parseExpression(true, refDestructuringErrors);
  if (this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
    if (this.options.ecmaVersion >= 9) {
      if (this.type === types._in) {
        if (awaitAt > -1) { this.unexpected(awaitAt); }
      } else { node.await = awaitAt > -1; }
    }
    this.toAssignable(init, false, refDestructuringErrors);
    this.checkLVal(init);
    return this.parseForIn(node, init)
  } else {
    this.checkExpressionErrors(refDestructuringErrors, true);
  }
  if (awaitAt > -1) { this.unexpected(awaitAt); }
  return this.parseFor(node, init)
};

pp$1.parseFunctionStatement = function(node, isAsync) {
  this.next();
  return this.parseFunction(node, true, false, isAsync)
};

pp$1.parseIfStatement = function(node) {
  this.next();
  node.test = this.parseParenExpression();
  node.consequent = this.parseStatement(!this.strict && this.type === types._function);
  node.alternate = this.eat(types._else) ? this.parseStatement(!this.strict && this.type === types._function) : null;
  return this.finishNode(node, "IfStatement")
};

pp$1.parseReturnStatement = function(node) {
  if (!this.inFunction && !this.options.allowReturnOutsideFunction)
    { this.raise(this.start, "'return' outside of function"); }
  this.next();


  if (this.eat(types.semi) || this.insertSemicolon()) { node.argument = null; }
  else { node.argument = this.parseExpression(); this.semicolon(); }
  return this.finishNode(node, "ReturnStatement")
};

pp$1.parseSwitchStatement = function(node) {
  var this$1 = this;

  this.next();
  node.discriminant = this.parseParenExpression();
  node.cases = [];
  this.expect(types.braceL);
  this.labels.push(switchLabel);
  this.enterLexicalScope();


  var cur;
  for (var sawDefault = false; this.type !== types.braceR;) {
    if (this$1.type === types._case || this$1.type === types._default) {
      var isCase = this$1.type === types._case;
      if (cur) { this$1.finishNode(cur, "SwitchCase"); }
      node.cases.push(cur = this$1.startNode());
      cur.consequent = [];
      this$1.next();
      if (isCase) {
        cur.test = this$1.parseExpression();
      } else {
        if (sawDefault) { this$1.raiseRecoverable(this$1.lastTokStart, "Multiple default clauses"); }
        sawDefault = true;
        cur.test = null;
      }
      this$1.expect(types.colon);
    } else {
      if (!cur) { this$1.unexpected(); }
      cur.consequent.push(this$1.parseStatement(true));
    }
  }
  this.exitLexicalScope();
  if (cur) { this.finishNode(cur, "SwitchCase"); }
  this.next(); 
  this.labels.pop();
  return this.finishNode(node, "SwitchStatement")
};

pp$1.parseThrowStatement = function(node) {
  this.next();
  if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
    { this.raise(this.lastTokEnd, "Illegal newline after throw"); }
  node.argument = this.parseExpression();
  this.semicolon();
  return this.finishNode(node, "ThrowStatement")
};


var empty = [];

pp$1.parseTryStatement = function(node) {
  this.next();
  node.block = this.parseBlock();
  node.handler = null;
  if (this.type === types._catch) {
    var clause = this.startNode();
    this.next();
    if (this.eat(types.parenL)) {
      clause.param = this.parseBindingAtom();
      this.enterLexicalScope();
      this.checkLVal(clause.param, "let");
      this.expect(types.parenR);
    } else {
      if (this.options.ecmaVersion < 10) { this.unexpected(); }
      clause.param = null;
      this.enterLexicalScope();
    }
    clause.body = this.parseBlock(false);
    this.exitLexicalScope();
    node.handler = this.finishNode(clause, "CatchClause");
  }
  node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
  if (!node.handler && !node.finalizer)
    { this.raise(node.start, "Missing catch or finally clause"); }
  return this.finishNode(node, "TryStatement")
};

pp$1.parseVarStatement = function(node, kind) {
  this.next();
  this.parseVar(node, false, kind);
  this.semicolon();
  return this.finishNode(node, "VariableDeclaration")
};

pp$1.parseWhileStatement = function(node) {
  this.next();
  node.test = this.parseParenExpression();
  this.labels.push(loopLabel);
  node.body = this.parseStatement(false);
  this.labels.pop();
  return this.finishNode(node, "WhileStatement")
};

pp$1.parseWithStatement = function(node) {
  if (this.strict) { this.raise(this.start, "'with' in strict mode"); }
  this.next();
  node.object = this.parseParenExpression();
  node.body = this.parseStatement(false);
  return this.finishNode(node, "WithStatement")
};

pp$1.parseEmptyStatement = function(node) {
  this.next();
  return this.finishNode(node, "EmptyStatement")
};

pp$1.parseLabeledStatement = function(node, maybeName, expr) {
  var this$1 = this;

  for (var i$1 = 0, list = this$1.labels; i$1 < list.length; i$1 += 1)
    {
    var label = list[i$1];

    if (label.name === maybeName)
      { this$1.raise(expr.start, "Label '" + maybeName + "' is already declared");
  } }
  var kind = this.type.isLoop ? "loop" : this.type === types._switch ? "switch" : null;
  for (var i = this.labels.length - 1; i >= 0; i--) {
    var label$1 = this$1.labels[i];
    if (label$1.statementStart === node.start) {
      label$1.statementStart = this$1.start;
      label$1.kind = kind;
    } else { break }
  }
  this.labels.push({name: maybeName, kind: kind, statementStart: this.start});
  node.body = this.parseStatement(true);
  if (node.body.type === "ClassDeclaration" ||
      node.body.type === "VariableDeclaration" && node.body.kind !== "var" ||
      node.body.type === "FunctionDeclaration" && (this.strict || node.body.generator || node.body.async))
    { this.raiseRecoverable(node.body.start, "Invalid labeled declaration"); }
  this.labels.pop();
  node.label = expr;
  return this.finishNode(node, "LabeledStatement")
};

pp$1.parseExpressionStatement = function(node, expr) {
  node.expression = expr;
  this.semicolon();
  return this.finishNode(node, "ExpressionStatement")
};


pp$1.parseBlock = function(createNewLexicalScope) {
  var this$1 = this;
  if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;

  var node = this.startNode();
  node.body = [];
  this.expect(types.braceL);
  if (createNewLexicalScope) {
    this.enterLexicalScope();
  }
  while (!this.eat(types.braceR)) {
    var stmt = this$1.parseStatement(true);
    node.body.push(stmt);
  }
  if (createNewLexicalScope) {
    this.exitLexicalScope();
  }
  return this.finishNode(node, "BlockStatement")
};


pp$1.parseFor = function(node, init) {
  node.init = init;
  this.expect(types.semi);
  node.test = this.type === types.semi ? null : this.parseExpression();
  this.expect(types.semi);
  node.update = this.type === types.parenR ? null : this.parseExpression();
  this.expect(types.parenR);
  this.exitLexicalScope();
  node.body = this.parseStatement(false);
  this.labels.pop();
  return this.finishNode(node, "ForStatement")
};


pp$1.parseForIn = function(node, init) {
  var type = this.type === types._in ? "ForInStatement" : "ForOfStatement";
  this.next();
  if (type === "ForInStatement") {
    if (init.type === "AssignmentPattern" ||
      (init.type === "VariableDeclaration" && init.declarations[0].init != null &&
       (this.strict || init.declarations[0].id.type !== "Identifier")))
      { this.raise(init.start, "Invalid assignment in for-in loop head"); }
  }
  node.left = init;
  node.right = type === "ForInStatement" ? this.parseExpression() : this.parseMaybeAssign();
  this.expect(types.parenR);
  this.exitLexicalScope();
  node.body = this.parseStatement(false);
  this.labels.pop();
  return this.finishNode(node, type)
};


pp$1.parseVar = function(node, isFor, kind) {
  var this$1 = this;

  node.declarations = [];
  node.kind = kind;
  for (;;) {
    var decl = this$1.startNode();
    this$1.parseVarId(decl, kind);
    if (this$1.eat(types.eq)) {
      decl.init = this$1.parseMaybeAssign(isFor);
    } else if (kind === "const" && !(this$1.type === types._in || (this$1.options.ecmaVersion >= 6 && this$1.isContextual("of")))) {
      this$1.unexpected();
    } else if (decl.id.type !== "Identifier" && !(isFor && (this$1.type === types._in || this$1.isContextual("of")))) {
      this$1.raise(this$1.lastTokEnd, "Complex binding patterns require an initialization value");
    } else {
      decl.init = null;
    }
    node.declarations.push(this$1.finishNode(decl, "VariableDeclarator"));
    if (!this$1.eat(types.comma)) { break }
  }
  return node
};

pp$1.parseVarId = function(decl, kind) {
  decl.id = this.parseBindingAtom(kind);
  this.checkLVal(decl.id, kind, false);
};


pp$1.parseFunction = function(node, isStatement, allowExpressionBody, isAsync) {
  this.initFunction(node);
  if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync)
    { node.generator = this.eat(types.star); }
  if (this.options.ecmaVersion >= 8)
    { node.async = !!isAsync; }

  if (isStatement) {
    node.id = isStatement === "nullableID" && this.type !== types.name ? null : this.parseIdent();
    if (node.id) {
      this.checkLVal(node.id, this.inModule && !this.inFunction ? "let" : "var");
    }
  }

  var oldInGen = this.inGenerator, oldInAsync = this.inAsync,
      oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction;
  this.inGenerator = node.generator;
  this.inAsync = node.async;
  this.yieldPos = 0;
  this.awaitPos = 0;
  this.inFunction = true;
  this.enterFunctionScope();

  if (!isStatement)
    { node.id = this.type === types.name ? this.parseIdent() : null; }

  this.parseFunctionParams(node);
  this.parseFunctionBody(node, allowExpressionBody);

  this.inGenerator = oldInGen;
  this.inAsync = oldInAsync;
  this.yieldPos = oldYieldPos;
  this.awaitPos = oldAwaitPos;
  this.inFunction = oldInFunc;
  return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
};

pp$1.parseFunctionParams = function(node) {
  this.expect(types.parenL);
  node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
  this.checkYieldAwaitInDefaultParams();
};


pp$1.parseClass = function(node, isStatement) {
  var this$1 = this;

  this.next();

  this.parseClassId(node, isStatement);
  this.parseClassSuper(node);
  var classBody = this.startNode();
  var hadConstructor = false;
  classBody.body = [];
  this.expect(types.braceL);
  while (!this.eat(types.braceR)) {
    var member = this$1.parseClassMember(classBody);
    if (member && member.type === "MethodDefinition" && member.kind === "constructor") {
      if (hadConstructor) { this$1.raise(member.start, "Duplicate constructor in the same class"); }
      hadConstructor = true;
    }
  }
  node.body = this.finishNode(classBody, "ClassBody");
  return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
};

pp$1.parseClassMember = function(classBody) {
  var this$1 = this;

  if (this.eat(types.semi)) { return null }

  var method = this.startNode();
  var tryContextual = function (k, noLineBreak) {
    if ( noLineBreak === void 0 ) noLineBreak = false;

    var start = this$1.start, startLoc = this$1.startLoc;
    if (!this$1.eatContextual(k)) { return false }
    if (this$1.type !== types.parenL && (!noLineBreak || !this$1.canInsertSemicolon())) { return true }
    if (method.key) { this$1.unexpected(); }
    method.computed = false;
    method.key = this$1.startNodeAt(start, startLoc);
    method.key.name = k;
    this$1.finishNode(method.key, "Identifier");
    return false
  };

  method.kind = "method";
  method.static = tryContextual("static");
  var isGenerator = this.eat(types.star);
  var isAsync = false;
  if (!isGenerator) {
    if (this.options.ecmaVersion >= 8 && tryContextual("async", true)) {
      isAsync = true;
      isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
    } else if (tryContextual("get")) {
      method.kind = "get";
    } else if (tryContextual("set")) {
      method.kind = "set";
    }
  }
  if (!method.key) { this.parsePropertyName(method); }
  var key = method.key;
  if (!method.computed && !method.static && (key.type === "Identifier" && key.name === "constructor" ||
      key.type === "Literal" && key.value === "constructor")) {
    if (method.kind !== "method") { this.raise(key.start, "Constructor can't have get/set modifier"); }
    if (isGenerator) { this.raise(key.start, "Constructor can't be a generator"); }
    if (isAsync) { this.raise(key.start, "Constructor can't be an async method"); }
    method.kind = "constructor";
  } else if (method.static && key.type === "Identifier" && key.name === "prototype") {
    this.raise(key.start, "Classes may not have a static property named prototype");
  }
  this.parseClassMethod(classBody, method, isGenerator, isAsync);
  if (method.kind === "get" && method.value.params.length !== 0)
    { this.raiseRecoverable(method.value.start, "getter should have no params"); }
  if (method.kind === "set" && method.value.params.length !== 1)
    { this.raiseRecoverable(method.value.start, "setter should have exactly one param"); }
  if (method.kind === "set" && method.value.params[0].type === "RestElement")
    { this.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params"); }
  return method
};

pp$1.parseClassMethod = function(classBody, method, isGenerator, isAsync) {
  method.value = this.parseMethod(isGenerator, isAsync);
  classBody.body.push(this.finishNode(method, "MethodDefinition"));
};

pp$1.parseClassId = function(node, isStatement) {
  node.id = this.type === types.name ? this.parseIdent() : isStatement === true ? this.unexpected() : null;
};

pp$1.parseClassSuper = function(node) {
  node.superClass = this.eat(types._extends) ? this.parseExprSubscripts() : null;
};


pp$1.parseExport = function(node, exports) {
  var this$1 = this;

  this.next();
  if (this.eat(types.star)) {
    this.expectContextual("from");
    if (this.type !== types.string) { this.unexpected(); }
    node.source = this.parseExprAtom();
    this.semicolon();
    return this.finishNode(node, "ExportAllDeclaration")
  }
  if (this.eat(types._default)) { 
    this.checkExport(exports, "default", this.lastTokStart);
    var isAsync;
    if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
      var fNode = this.startNode();
      this.next();
      if (isAsync) { this.next(); }
      node.declaration = this.parseFunction(fNode, "nullableID", false, isAsync);
    } else if (this.type === types._class) {
      var cNode = this.startNode();
      node.declaration = this.parseClass(cNode, "nullableID");
    } else {
      node.declaration = this.parseMaybeAssign();
      this.semicolon();
    }
    return this.finishNode(node, "ExportDefaultDeclaration")
  }
  if (this.shouldParseExportStatement()) {
    node.declaration = this.parseStatement(true);
    if (node.declaration.type === "VariableDeclaration")
      { this.checkVariableExport(exports, node.declaration.declarations); }
    else
      { this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); }
    node.specifiers = [];
    node.source = null;
  } else { 
    node.declaration = null;
    node.specifiers = this.parseExportSpecifiers(exports);
    if (this.eatContextual("from")) {
      if (this.type !== types.string) { this.unexpected(); }
      node.source = this.parseExprAtom();
    } else {
      for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
        var spec = list[i];

        this$1.checkUnreserved(spec.local);
      }

      node.source = null;
    }
    this.semicolon();
  }
  return this.finishNode(node, "ExportNamedDeclaration")
};

pp$1.checkExport = function(exports, name, pos) {
  if (!exports) { return }
  if (has(exports, name))
    { this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); }
  exports[name] = true;
};

pp$1.checkPatternExport = function(exports, pat) {
  var this$1 = this;

  var type = pat.type;
  if (type === "Identifier")
    { this.checkExport(exports, pat.name, pat.start); }
  else if (type === "ObjectPattern")
    { for (var i = 0, list = pat.properties; i < list.length; i += 1)
      {
        var prop = list[i];

        this$1.checkPatternExport(exports, prop);
      } }
  else if (type === "ArrayPattern")
    { for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) {
      var elt = list$1[i$1];

        if (elt) { this$1.checkPatternExport(exports, elt); }
    } }
  else if (type === "Property")
    { this.checkPatternExport(exports, pat.value); }
  else if (type === "AssignmentPattern")
    { this.checkPatternExport(exports, pat.left); }
  else if (type === "RestElement")
    { this.checkPatternExport(exports, pat.argument); }
  else if (type === "ParenthesizedExpression")
    { this.checkPatternExport(exports, pat.expression); }
};

pp$1.checkVariableExport = function(exports, decls) {
  var this$1 = this;

  if (!exports) { return }
  for (var i = 0, list = decls; i < list.length; i += 1)
    {
    var decl = list[i];

    this$1.checkPatternExport(exports, decl.id);
  }
};

pp$1.shouldParseExportStatement = function() {
  return this.type.keyword === "var" ||
    this.type.keyword === "const" ||
    this.type.keyword === "class" ||
    this.type.keyword === "function" ||
    this.isLet() ||
    this.isAsyncFunction()
};


pp$1.parseExportSpecifiers = function(exports) {
  var this$1 = this;

  var nodes = [], first = true;
  this.expect(types.braceL);
  while (!this.eat(types.braceR)) {
    if (!first) {
      this$1.expect(types.comma);
      if (this$1.afterTrailingComma(types.braceR)) { break }
    } else { first = false; }

    var node = this$1.startNode();
    node.local = this$1.parseIdent(true);
    node.exported = this$1.eatContextual("as") ? this$1.parseIdent(true) : node.local;
    this$1.checkExport(exports, node.exported.name, node.exported.start);
    nodes.push(this$1.finishNode(node, "ExportSpecifier"));
  }
  return nodes
};


pp$1.parseImport = function(node) {
  this.next();
  if (this.type === types.string) {
    node.specifiers = empty;
    node.source = this.parseExprAtom();
  } else {
    node.specifiers = this.parseImportSpecifiers();
    this.expectContextual("from");
    node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
  }
  this.semicolon();
  return this.finishNode(node, "ImportDeclaration")
};


pp$1.parseImportSpecifiers = function() {
  var this$1 = this;

  var nodes = [], first = true;
  if (this.type === types.name) {
    var node = this.startNode();
    node.local = this.parseIdent();
    this.checkLVal(node.local, "let");
    nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
    if (!this.eat(types.comma)) { return nodes }
  }
  if (this.type === types.star) {
    var node$1 = this.startNode();
    this.next();
    this.expectContextual("as");
    node$1.local = this.parseIdent();
    this.checkLVal(node$1.local, "let");
    nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier"));
    return nodes
  }
  this.expect(types.braceL);
  while (!this.eat(types.braceR)) {
    if (!first) {
      this$1.expect(types.comma);
      if (this$1.afterTrailingComma(types.braceR)) { break }
    } else { first = false; }

    var node$2 = this$1.startNode();
    node$2.imported = this$1.parseIdent(true);
    if (this$1.eatContextual("as")) {
      node$2.local = this$1.parseIdent();
    } else {
      this$1.checkUnreserved(node$2.imported);
      node$2.local = node$2.imported;
    }
    this$1.checkLVal(node$2.local, "let");
    nodes.push(this$1.finishNode(node$2, "ImportSpecifier"));
  }
  return nodes
};

pp$1.adaptDirectivePrologue = function(statements) {
  for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) {
    statements[i].directive = statements[i].expression.raw.slice(1, -1);
  }
};
pp$1.isDirectiveCandidate = function(statement) {
  return (
    statement.type === "ExpressionStatement" &&
    statement.expression.type === "Literal" &&
    typeof statement.expression.value === "string" &&
    (this.input[statement.start] === "\"" || this.input[statement.start] === "'")
  )
};

var pp$2 = Parser.prototype;


pp$2.toAssignable = function(node, isBinding, refDestructuringErrors) {
  var this$1 = this;

  if (this.options.ecmaVersion >= 6 && node) {
    switch (node.type) {
    case "Identifier":
      if (this.inAsync && node.name === "await")
        { this.raise(node.start, "Can not use 'await' as identifier inside an async function"); }
      break

    case "ObjectPattern":
    case "ArrayPattern":
    case "RestElement":
      break

    case "ObjectExpression":
      node.type = "ObjectPattern";
      if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
      for (var i = 0, list = node.properties; i < list.length; i += 1) {
        var prop = list[i];

      this$1.toAssignable(prop, isBinding);
        if (
          prop.type === "RestElement" &&
          (prop.argument.type === "ArrayPattern" || prop.argument.type === "ObjectPattern")
        ) {
          this$1.raise(prop.argument.start, "Unexpected token");
        }
      }
      break

    case "Property":
      if (node.kind !== "init") { this.raise(node.key.start, "Object pattern can't contain getter or setter"); }
      this.toAssignable(node.value, isBinding);
      break

    case "ArrayExpression":
      node.type = "ArrayPattern";
      if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
      this.toAssignableList(node.elements, isBinding);
      break

    case "SpreadElement":
      node.type = "RestElement";
      this.toAssignable(node.argument, isBinding);
      if (node.argument.type === "AssignmentPattern")
        { this.raise(node.argument.start, "Rest elements cannot have a default value"); }
      break

    case "AssignmentExpression":
      if (node.operator !== "=") { this.raise(node.left.end, "Only '=' operator can be used for specifying default value."); }
      node.type = "AssignmentPattern";
      delete node.operator;
      this.toAssignable(node.left, isBinding);

    case "AssignmentPattern":
      break

    case "ParenthesizedExpression":
      this.toAssignable(node.expression, isBinding);
      break

    case "MemberExpression":
      if (!isBinding) { break }

    default:
      this.raise(node.start, "Assigning to rvalue");
    }
  } else if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
  return node
};


pp$2.toAssignableList = function(exprList, isBinding) {
  var this$1 = this;

  var end = exprList.length;
  for (var i = 0; i < end; i++) {
    var elt = exprList[i];
    if (elt) { this$1.toAssignable(elt, isBinding); }
  }
  if (end) {
    var last = exprList[end - 1];
    if (this.options.ecmaVersion === 6 && isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier")
      { this.unexpected(last.argument.start); }
  }
  return exprList
};


pp$2.parseSpread = function(refDestructuringErrors) {
  var node = this.startNode();
  this.next();
  node.argument = this.parseMaybeAssign(false, refDestructuringErrors);
  return this.finishNode(node, "SpreadElement")
};

pp$2.parseRestBinding = function() {
  var node = this.startNode();
  this.next();

  if (this.options.ecmaVersion === 6 && this.type !== types.name)
    { this.unexpected(); }

  node.argument = this.parseBindingAtom();

  return this.finishNode(node, "RestElement")
};


pp$2.parseBindingAtom = function() {
  if (this.options.ecmaVersion >= 6) {
    switch (this.type) {
    case types.bracketL:
      var node = this.startNode();
      this.next();
      node.elements = this.parseBindingList(types.bracketR, true, true);
      return this.finishNode(node, "ArrayPattern")

    case types.braceL:
      return this.parseObj(true)
    }
  }
  return this.parseIdent()
};

pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
  var this$1 = this;

  var elts = [], first = true;
  while (!this.eat(close)) {
    if (first) { first = false; }
    else { this$1.expect(types.comma); }
    if (allowEmpty && this$1.type === types.comma) {
      elts.push(null);
    } else if (allowTrailingComma && this$1.afterTrailingComma(close)) {
      break
    } else if (this$1.type === types.ellipsis) {
      var rest = this$1.parseRestBinding();
      this$1.parseBindingListItem(rest);
      elts.push(rest);
      if (this$1.type === types.comma) { this$1.raise(this$1.start, "Comma is not permitted after the rest element"); }
      this$1.expect(close);
      break
    } else {
      var elem = this$1.parseMaybeDefault(this$1.start, this$1.startLoc);
      this$1.parseBindingListItem(elem);
      elts.push(elem);
    }
  }
  return elts
};

pp$2.parseBindingListItem = function(param) {
  return param
};


pp$2.parseMaybeDefault = function(startPos, startLoc, left) {
  left = left || this.parseBindingAtom();
  if (this.options.ecmaVersion < 6 || !this.eat(types.eq)) { return left }
  var node = this.startNodeAt(startPos, startLoc);
  node.left = left;
  node.right = this.parseMaybeAssign();
  return this.finishNode(node, "AssignmentPattern")
};


pp$2.checkLVal = function(expr, bindingType, checkClashes) {
  var this$1 = this;

  switch (expr.type) {
  case "Identifier":
    if (this.strict && this.reservedWordsStrictBind.test(expr.name))
      { this.raiseRecoverable(expr.start, (bindingType ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); }
    if (checkClashes) {
      if (has(checkClashes, expr.name))
        { this.raiseRecoverable(expr.start, "Argument name clash"); }
      checkClashes[expr.name] = true;
    }
    if (bindingType && bindingType !== "none") {
      if (
        bindingType === "var" && !this.canDeclareVarName(expr.name) ||
        bindingType !== "var" && !this.canDeclareLexicalName(expr.name)
      ) {
        this.raiseRecoverable(expr.start, ("Identifier '" + (expr.name) + "' has already been declared"));
      }
      if (bindingType === "var") {
        this.declareVarName(expr.name);
      } else {
        this.declareLexicalName(expr.name);
      }
    }
    break

  case "MemberExpression":
    if (bindingType) { this.raiseRecoverable(expr.start, "Binding member expression"); }
    break

  case "ObjectPattern":
    for (var i = 0, list = expr.properties; i < list.length; i += 1)
      {
    var prop = list[i];

    this$1.checkLVal(prop, bindingType, checkClashes);
  }
    break

  case "Property":
    this.checkLVal(expr.value, bindingType, checkClashes);
    break

  case "ArrayPattern":
    for (var i$1 = 0, list$1 = expr.elements; i$1 < list$1.length; i$1 += 1) {
      var elem = list$1[i$1];

    if (elem) { this$1.checkLVal(elem, bindingType, checkClashes); }
    }
    break

  case "AssignmentPattern":
    this.checkLVal(expr.left, bindingType, checkClashes);
    break

  case "RestElement":
    this.checkLVal(expr.argument, bindingType, checkClashes);
    break

  case "ParenthesizedExpression":
    this.checkLVal(expr.expression, bindingType, checkClashes);
    break

  default:
    this.raise(expr.start, (bindingType ? "Binding" : "Assigning to") + " rvalue");
  }
};


var pp$3 = Parser.prototype;


pp$3.checkPropClash = function(prop, propHash, refDestructuringErrors) {
  if (this.options.ecmaVersion >= 9 && prop.type === "SpreadElement")
    { return }
  if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
    { return }
  var key = prop.key;
  var name;
  switch (key.type) {
  case "Identifier": name = key.name; break
  case "Literal": name = String(key.value); break
  default: return
  }
  var kind = prop.kind;
  if (this.options.ecmaVersion >= 6) {
    if (name === "__proto__" && kind === "init") {
      if (propHash.proto) {
        if (refDestructuringErrors && refDestructuringErrors.doubleProto < 0) { refDestructuringErrors.doubleProto = key.start; }
        else { this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); }
      }
      propHash.proto = true;
    }
    return
  }
  name = "$" + name;
  var other = propHash[name];
  if (other) {
    var redefinition;
    if (kind === "init") {
      redefinition = this.strict && other.init || other.get || other.set;
    } else {
      redefinition = other.init || other[kind];
    }
    if (redefinition)
      { this.raiseRecoverable(key.start, "Redefinition of property"); }
  } else {
    other = propHash[name] = {
      init: false,
      get: false,
      set: false
    };
  }
  other[kind] = true;
};




pp$3.parseExpression = function(noIn, refDestructuringErrors) {
  var this$1 = this;

  var startPos = this.start, startLoc = this.startLoc;
  var expr = this.parseMaybeAssign(noIn, refDestructuringErrors);
  if (this.type === types.comma) {
    var node = this.startNodeAt(startPos, startLoc);
    node.expressions = [expr];
    while (this.eat(types.comma)) { node.expressions.push(this$1.parseMaybeAssign(noIn, refDestructuringErrors)); }
    return this.finishNode(node, "SequenceExpression")
  }
  return expr
};


pp$3.parseMaybeAssign = function(noIn, refDestructuringErrors, afterLeftParse) {
  if (this.inGenerator && this.isContextual("yield")) { return this.parseYield() }

  var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1;
  if (refDestructuringErrors) {
    oldParenAssign = refDestructuringErrors.parenthesizedAssign;
    oldTrailingComma = refDestructuringErrors.trailingComma;
    refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1;
  } else {
    refDestructuringErrors = new DestructuringErrors;
    ownDestructuringErrors = true;
  }

  var startPos = this.start, startLoc = this.startLoc;
  if (this.type === types.parenL || this.type === types.name)
    { this.potentialArrowAt = this.start; }
  var left = this.parseMaybeConditional(noIn, refDestructuringErrors);
  if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); }
  if (this.type.isAssign) {
    var node = this.startNodeAt(startPos, startLoc);
    node.operator = this.value;
    node.left = this.type === types.eq ? this.toAssignable(left, false, refDestructuringErrors) : left;
    if (!ownDestructuringErrors) { DestructuringErrors.call(refDestructuringErrors); }
    refDestructuringErrors.shorthandAssign = -1; 
    this.checkLVal(left);
    this.next();
    node.right = this.parseMaybeAssign(noIn);
    return this.finishNode(node, "AssignmentExpression")
  } else {
    if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); }
  }
  if (oldParenAssign > -1) { refDestructuringErrors.parenthesizedAssign = oldParenAssign; }
  if (oldTrailingComma > -1) { refDestructuringErrors.trailingComma = oldTrailingComma; }
  return left
};


pp$3.parseMaybeConditional = function(noIn, refDestructuringErrors) {
  var startPos = this.start, startLoc = this.startLoc;
  var expr = this.parseExprOps(noIn, refDestructuringErrors);
  if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
  if (this.eat(types.question)) {
    var node = this.startNodeAt(startPos, startLoc);
    node.test = expr;
    node.consequent = this.parseMaybeAssign();
    this.expect(types.colon);
    node.alternate = this.parseMaybeAssign(noIn);
    return this.finishNode(node, "ConditionalExpression")
  }
  return expr
};


pp$3.parseExprOps = function(noIn, refDestructuringErrors) {
  var startPos = this.start, startLoc = this.startLoc;
  var expr = this.parseMaybeUnary(refDestructuringErrors, false);
  if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
  return expr.start === startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, noIn)
};


pp$3.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, noIn) {
  var prec = this.type.binop;
  if (prec != null && (!noIn || this.type !== types._in)) {
    if (prec > minPrec) {
      var logical = this.type === types.logicalOR || this.type === types.logicalAND;
      var op = this.value;
      this.next();
      var startPos = this.start, startLoc = this.startLoc;
      var right = this.parseExprOp(this.parseMaybeUnary(null, false), startPos, startLoc, prec, noIn);
      var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical);
      return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn)
    }
  }
  return left
};

pp$3.buildBinary = function(startPos, startLoc, left, right, op, logical) {
  var node = this.startNodeAt(startPos, startLoc);
  node.left = left;
  node.operator = op;
  node.right = right;
  return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression")
};


pp$3.parseMaybeUnary = function(refDestructuringErrors, sawUnary) {
  var this$1 = this;

  var startPos = this.start, startLoc = this.startLoc, expr;
  if (this.isContextual("await") && (this.inAsync || (!this.inFunction && this.options.allowAwaitOutsideFunction))) {
    expr = this.parseAwait();
    sawUnary = true;
  } else if (this.type.prefix) {
    var node = this.startNode(), update = this.type === types.incDec;
    node.operator = this.value;
    node.prefix = true;
    this.next();
    node.argument = this.parseMaybeUnary(null, true);
    this.checkExpressionErrors(refDestructuringErrors, true);
    if (update) { this.checkLVal(node.argument); }
    else if (this.strict && node.operator === "delete" &&
             node.argument.type === "Identifier")
      { this.raiseRecoverable(node.start, "Deleting local variable in strict mode"); }
    else { sawUnary = true; }
    expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
  } else {
    expr = this.parseExprSubscripts(refDestructuringErrors);
    if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
    while (this.type.postfix && !this.canInsertSemicolon()) {
      var node$1 = this$1.startNodeAt(startPos, startLoc);
      node$1.operator = this$1.value;
      node$1.prefix = false;
      node$1.argument = expr;
      this$1.checkLVal(expr);
      this$1.next();
      expr = this$1.finishNode(node$1, "UpdateExpression");
    }
  }

  if (!sawUnary && this.eat(types.starstar))
    { return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false), "**", false) }
  else
    { return expr }
};


pp$3.parseExprSubscripts = function(refDestructuringErrors) {
  var startPos = this.start, startLoc = this.startLoc;
  var expr = this.parseExprAtom(refDestructuringErrors);
  var skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")";
  if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) { return expr }
  var result = this.parseSubscripts(expr, startPos, startLoc);
  if (refDestructuringErrors && result.type === "MemberExpression") {
    if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; }
    if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; }
  }
  return result
};

pp$3.parseSubscripts = function(base, startPos, startLoc, noCalls) {
  var this$1 = this;

  var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
      this.lastTokEnd === base.end && !this.canInsertSemicolon() && this.input.slice(base.start, base.end) === "async";
  for (var computed = (void 0);;) {
    if ((computed = this$1.eat(types.bracketL)) || this$1.eat(types.dot)) {
      var node = this$1.startNodeAt(startPos, startLoc);
      node.object = base;
      node.property = computed ? this$1.parseExpression() : this$1.parseIdent(true);
      node.computed = !!computed;
      if (computed) { this$1.expect(types.bracketR); }
      base = this$1.finishNode(node, "MemberExpression");
    } else if (!noCalls && this$1.eat(types.parenL)) {
      var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this$1.yieldPos, oldAwaitPos = this$1.awaitPos;
      this$1.yieldPos = 0;
      this$1.awaitPos = 0;
      var exprList = this$1.parseExprList(types.parenR, this$1.options.ecmaVersion >= 8, false, refDestructuringErrors);
      if (maybeAsyncArrow && !this$1.canInsertSemicolon() && this$1.eat(types.arrow)) {
        this$1.checkPatternErrors(refDestructuringErrors, false);
        this$1.checkYieldAwaitInDefaultParams();
        this$1.yieldPos = oldYieldPos;
        this$1.awaitPos = oldAwaitPos;
        return this$1.parseArrowExpression(this$1.startNodeAt(startPos, startLoc), exprList, true)
      }
      this$1.checkExpressionErrors(refDestructuringErrors, true);
      this$1.yieldPos = oldYieldPos || this$1.yieldPos;
      this$1.awaitPos = oldAwaitPos || this$1.awaitPos;
      var node$1 = this$1.startNodeAt(startPos, startLoc);
      node$1.callee = base;
      node$1.arguments = exprList;
      base = this$1.finishNode(node$1, "CallExpression");
    } else if (this$1.type === types.backQuote) {
      var node$2 = this$1.startNodeAt(startPos, startLoc);
      node$2.tag = base;
      node$2.quasi = this$1.parseTemplate({isTagged: true});
      base = this$1.finishNode(node$2, "TaggedTemplateExpression");
    } else {
      return base
    }
  }
};


pp$3.parseExprAtom = function(refDestructuringErrors) {
  var node, canBeArrow = this.potentialArrowAt === this.start;
  switch (this.type) {
  case types._super:
    if (!this.inFunction)
      { this.raise(this.start, "'super' outside of function or class"); }
    node = this.startNode();
    this.next();
    if (this.type !== types.dot && this.type !== types.bracketL && this.type !== types.parenL)
      { this.unexpected(); }
    return this.finishNode(node, "Super")

  case types._this:
    node = this.startNode();
    this.next();
    return this.finishNode(node, "ThisExpression")

  case types.name:
    var startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc;
    var id = this.parseIdent(this.type !== types.name);
    if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types._function))
      { return this.parseFunction(this.startNodeAt(startPos, startLoc), false, false, true) }
    if (canBeArrow && !this.canInsertSemicolon()) {
      if (this.eat(types.arrow))
        { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false) }
      if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types.name && !containsEsc) {
        id = this.parseIdent();
        if (this.canInsertSemicolon() || !this.eat(types.arrow))
          { this.unexpected(); }
        return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true)
      }
    }
    return id

  case types.regexp:
    var value = this.value;
    node = this.parseLiteral(value.value);
    node.regex = {pattern: value.pattern, flags: value.flags};
    return node

  case types.num: case types.string:
    return this.parseLiteral(this.value)

  case types._null: case types._true: case types._false:
    node = this.startNode();
    node.value = this.type === types._null ? null : this.type === types._true;
    node.raw = this.type.keyword;
    this.next();
    return this.finishNode(node, "Literal")

  case types.parenL:
    var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow);
    if (refDestructuringErrors) {
      if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
        { refDestructuringErrors.parenthesizedAssign = start; }
      if (refDestructuringErrors.parenthesizedBind < 0)
        { refDestructuringErrors.parenthesizedBind = start; }
    }
    return expr

  case types.bracketL:
    node = this.startNode();
    this.next();
    node.elements = this.parseExprList(types.bracketR, true, true, refDestructuringErrors);
    return this.finishNode(node, "ArrayExpression")

  case types.braceL:
    return this.parseObj(false, refDestructuringErrors)

  case types._function:
    node = this.startNode();
    this.next();
    return this.parseFunction(node, false)

  case types._class:
    return this.parseClass(this.startNode(), false)

  case types._new:
    return this.parseNew()

  case types.backQuote:
    return this.parseTemplate()

  default:
    this.unexpected();
  }
};

pp$3.parseLiteral = function(value) {
  var node = this.startNode();
  node.value = value;
  node.raw = this.input.slice(this.start, this.end);
  this.next();
  return this.finishNode(node, "Literal")
};

pp$3.parseParenExpression = function() {
  this.expect(types.parenL);
  var val = this.parseExpression();
  this.expect(types.parenR);
  return val
};

pp$3.parseParenAndDistinguishExpression = function(canBeArrow) {
  var this$1 = this;

  var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8;
  if (this.options.ecmaVersion >= 6) {
    this.next();

    var innerStartPos = this.start, innerStartLoc = this.startLoc;
    var exprList = [], first = true, lastIsComma = false;
    var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart;
    this.yieldPos = 0;
    this.awaitPos = 0;
    while (this.type !== types.parenR) {
      first ? first = false : this$1.expect(types.comma);
      if (allowTrailingComma && this$1.afterTrailingComma(types.parenR, true)) {
        lastIsComma = true;
        break
      } else if (this$1.type === types.ellipsis) {
        spreadStart = this$1.start;
        exprList.push(this$1.parseParenItem(this$1.parseRestBinding()));
        if (this$1.type === types.comma) { this$1.raise(this$1.start, "Comma is not permitted after the rest element"); }
        break
      } else {
        exprList.push(this$1.parseMaybeAssign(false, refDestructuringErrors, this$1.parseParenItem));
      }
    }
    var innerEndPos = this.start, innerEndLoc = this.startLoc;
    this.expect(types.parenR);

    if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
      this.checkPatternErrors(refDestructuringErrors, false);
      this.checkYieldAwaitInDefaultParams();
      this.yieldPos = oldYieldPos;
      this.awaitPos = oldAwaitPos;
      return this.parseParenArrowList(startPos, startLoc, exprList)
    }

    if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); }
    if (spreadStart) { this.unexpected(spreadStart); }
    this.checkExpressionErrors(refDestructuringErrors, true);
    this.yieldPos = oldYieldPos || this.yieldPos;
    this.awaitPos = oldAwaitPos || this.awaitPos;

    if (exprList.length > 1) {
      val = this.startNodeAt(innerStartPos, innerStartLoc);
      val.expressions = exprList;
      this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
    } else {
      val = exprList[0];
    }
  } else {
    val = this.parseParenExpression();
  }

  if (this.options.preserveParens) {
    var par = this.startNodeAt(startPos, startLoc);
    par.expression = val;
    return this.finishNode(par, "ParenthesizedExpression")
  } else {
    return val
  }
};

pp$3.parseParenItem = function(item) {
  return item
};

pp$3.parseParenArrowList = function(startPos, startLoc, exprList) {
  return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList)
};


var empty$1 = [];

pp$3.parseNew = function() {
  var node = this.startNode();
  var meta = this.parseIdent(true);
  if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) {
    node.meta = meta;
    var containsEsc = this.containsEsc;
    node.property = this.parseIdent(true);
    if (node.property.name !== "target" || containsEsc)
      { this.raiseRecoverable(node.property.start, "The only valid meta property for new is new.target"); }
    if (!this.inFunction)
      { this.raiseRecoverable(node.start, "new.target can only be used in functions"); }
    return this.finishNode(node, "MetaProperty")
  }
  var startPos = this.start, startLoc = this.startLoc;
  node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
  if (this.eat(types.parenL)) { node.arguments = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false); }
  else { node.arguments = empty$1; }
  return this.finishNode(node, "NewExpression")
};


pp$3.parseTemplateElement = function(ref) {
  var isTagged = ref.isTagged;

  var elem = this.startNode();
  if (this.type === types.invalidTemplate) {
    if (!isTagged) {
      this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal");
    }
    elem.value = {
      raw: this.value,
      cooked: null
    };
  } else {
    elem.value = {
      raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"),
      cooked: this.value
    };
  }
  this.next();
  elem.tail = this.type === types.backQuote;
  return this.finishNode(elem, "TemplateElement")
};

pp$3.parseTemplate = function(ref) {
  var this$1 = this;
  if ( ref === void 0 ) ref = {};
  var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;

  var node = this.startNode();
  this.next();
  node.expressions = [];
  var curElt = this.parseTemplateElement({isTagged: isTagged});
  node.quasis = [curElt];
  while (!curElt.tail) {
    if (this$1.type === types.eof) { this$1.raise(this$1.pos, "Unterminated template literal"); }
    this$1.expect(types.dollarBraceL);
    node.expressions.push(this$1.parseExpression());
    this$1.expect(types.braceR);
    node.quasis.push(curElt = this$1.parseTemplateElement({isTagged: isTagged}));
  }
  this.next();
  return this.finishNode(node, "TemplateLiteral")
};

pp$3.isAsyncProp = function(prop) {
  return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" &&
    (this.type === types.name || this.type === types.num || this.type === types.string || this.type === types.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types.star)) &&
    !lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
};


pp$3.parseObj = function(isPattern, refDestructuringErrors) {
  var this$1 = this;

  var node = this.startNode(), first = true, propHash = {};
  node.properties = [];
  this.next();
  while (!this.eat(types.braceR)) {
    if (!first) {
      this$1.expect(types.comma);
      if (this$1.afterTrailingComma(types.braceR)) { break }
    } else { first = false; }

    var prop = this$1.parseProperty(isPattern, refDestructuringErrors);
    if (!isPattern) { this$1.checkPropClash(prop, propHash, refDestructuringErrors); }
    node.properties.push(prop);
  }
  return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
};

pp$3.parseProperty = function(isPattern, refDestructuringErrors) {
  var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc;
  if (this.options.ecmaVersion >= 9 && this.eat(types.ellipsis)) {
    if (isPattern) {
      prop.argument = this.parseIdent(false);
      if (this.type === types.comma) {
        this.raise(this.start, "Comma is not permitted after the rest element");
      }
      return this.finishNode(prop, "RestElement")
    }
    if (this.type === types.parenL && refDestructuringErrors) {
      if (refDestructuringErrors.parenthesizedAssign < 0) {
        refDestructuringErrors.parenthesizedAssign = this.start;
      }
      if (refDestructuringErrors.parenthesizedBind < 0) {
        refDestructuringErrors.parenthesizedBind = this.start;
      }
    }
    prop.argument = this.parseMaybeAssign(false, refDestructuringErrors);
    if (this.type === types.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {
      refDestructuringErrors.trailingComma = this.start;
    }
    return this.finishNode(prop, "SpreadElement")
  }
  if (this.options.ecmaVersion >= 6) {
    prop.method = false;
    prop.shorthand = false;
    if (isPattern || refDestructuringErrors) {
      startPos = this.start;
      startLoc = this.startLoc;
    }
    if (!isPattern)
      { isGenerator = this.eat(types.star); }
  }
  var containsEsc = this.containsEsc;
  this.parsePropertyName(prop);
  if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) {
    isAsync = true;
    isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
    this.parsePropertyName(prop, refDestructuringErrors);
  } else {
    isAsync = false;
  }
  this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc);
  return this.finishNode(prop, "Property")
};

pp$3.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {
  if ((isGenerator || isAsync) && this.type === types.colon)
    { this.unexpected(); }

  if (this.eat(types.colon)) {
    prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors);
    prop.kind = "init";
  } else if (this.options.ecmaVersion >= 6 && this.type === types.parenL) {
    if (isPattern) { this.unexpected(); }
    prop.kind = "init";
    prop.method = true;
    prop.value = this.parseMethod(isGenerator, isAsync);
  } else if (!isPattern && !containsEsc &&
             this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
             (prop.key.name === "get" || prop.key.name === "set") &&
             (this.type !== types.comma && this.type !== types.braceR)) {
    if (isGenerator || isAsync) { this.unexpected(); }
    prop.kind = prop.key.name;
    this.parsePropertyName(prop);
    prop.value = this.parseMethod(false);
    var paramCount = prop.kind === "get" ? 0 : 1;
    if (prop.value.params.length !== paramCount) {
      var start = prop.value.start;
      if (prop.kind === "get")
        { this.raiseRecoverable(start, "getter should have no params"); }
      else
        { this.raiseRecoverable(start, "setter should have exactly one param"); }
    } else {
      if (prop.kind === "set" && prop.value.params[0].type === "RestElement")
        { this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params"); }
    }
  } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
    this.checkUnreserved(prop.key);
    prop.kind = "init";
    if (isPattern) {
      prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
    } else if (this.type === types.eq && refDestructuringErrors) {
      if (refDestructuringErrors.shorthandAssign < 0)
        { refDestructuringErrors.shorthandAssign = this.start; }
      prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
    } else {
      prop.value = prop.key;
    }
    prop.shorthand = true;
  } else { this.unexpected(); }
};

pp$3.parsePropertyName = function(prop) {
  if (this.options.ecmaVersion >= 6) {
    if (this.eat(types.bracketL)) {
      prop.computed = true;
      prop.key = this.parseMaybeAssign();
      this.expect(types.bracketR);
      return prop.key
    } else {
      prop.computed = false;
    }
  }
  return prop.key = this.type === types.num || this.type === types.string ? this.parseExprAtom() : this.parseIdent(true)
};


pp$3.initFunction = function(node) {
  node.id = null;
  if (this.options.ecmaVersion >= 6) {
    node.generator = false;
    node.expression = false;
  }
  if (this.options.ecmaVersion >= 8)
    { node.async = false; }
};


pp$3.parseMethod = function(isGenerator, isAsync) {
  var node = this.startNode(), oldInGen = this.inGenerator, oldInAsync = this.inAsync,
      oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction;

  this.initFunction(node);
  if (this.options.ecmaVersion >= 6)
    { node.generator = isGenerator; }
  if (this.options.ecmaVersion >= 8)
    { node.async = !!isAsync; }

  this.inGenerator = node.generator;
  this.inAsync = node.async;
  this.yieldPos = 0;
  this.awaitPos = 0;
  this.inFunction = true;
  this.enterFunctionScope();

  this.expect(types.parenL);
  node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
  this.checkYieldAwaitInDefaultParams();
  this.parseFunctionBody(node, false);

  this.inGenerator = oldInGen;
  this.inAsync = oldInAsync;
  this.yieldPos = oldYieldPos;
  this.awaitPos = oldAwaitPos;
  this.inFunction = oldInFunc;
  return this.finishNode(node, "FunctionExpression")
};


pp$3.parseArrowExpression = function(node, params, isAsync) {
  var oldInGen = this.inGenerator, oldInAsync = this.inAsync,
      oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction;

  this.enterFunctionScope();
  this.initFunction(node);
  if (this.options.ecmaVersion >= 8)
    { node.async = !!isAsync; }

  this.inGenerator = false;
  this.inAsync = node.async;
  this.yieldPos = 0;
  this.awaitPos = 0;
  this.inFunction = true;

  node.params = this.toAssignableList(params, true);
  this.parseFunctionBody(node, true);

  this.inGenerator = oldInGen;
  this.inAsync = oldInAsync;
  this.yieldPos = oldYieldPos;
  this.awaitPos = oldAwaitPos;
  this.inFunction = oldInFunc;
  return this.finishNode(node, "ArrowFunctionExpression")
};


pp$3.parseFunctionBody = function(node, isArrowFunction) {
  var isExpression = isArrowFunction && this.type !== types.braceL;
  var oldStrict = this.strict, useStrict = false;

  if (isExpression) {
    node.body = this.parseMaybeAssign();
    node.expression = true;
    this.checkParams(node, false);
  } else {
    var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params);
    if (!oldStrict || nonSimple) {
      useStrict = this.strictDirective(this.end);
      if (useStrict && nonSimple)
        { this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list"); }
    }
    var oldLabels = this.labels;
    this.labels = [];
    if (useStrict) { this.strict = true; }

    this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && this.isSimpleParamList(node.params));
    node.body = this.parseBlock(false);
    node.expression = false;
    this.adaptDirectivePrologue(node.body.body);
    this.labels = oldLabels;
  }
  this.exitFunctionScope();

  if (this.strict && node.id) {
    this.checkLVal(node.id, "none");
  }
  this.strict = oldStrict;
};

pp$3.isSimpleParamList = function(params) {
  for (var i = 0, list = params; i < list.length; i += 1)
    {
    var param = list[i];

    if (param.type !== "Identifier") { return false
  } }
  return true
};


pp$3.checkParams = function(node, allowDuplicates) {
  var this$1 = this;

  var nameHash = {};
  for (var i = 0, list = node.params; i < list.length; i += 1)
    {
    var param = list[i];

    this$1.checkLVal(param, "var", allowDuplicates ? null : nameHash);
  }
};


pp$3.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
  var this$1 = this;

  var elts = [], first = true;
  while (!this.eat(close)) {
    if (!first) {
      this$1.expect(types.comma);
      if (allowTrailingComma && this$1.afterTrailingComma(close)) { break }
    } else { first = false; }

    var elt = (void 0);
    if (allowEmpty && this$1.type === types.comma)
      { elt = null; }
    else if (this$1.type === types.ellipsis) {
      elt = this$1.parseSpread(refDestructuringErrors);
      if (refDestructuringErrors && this$1.type === types.comma && refDestructuringErrors.trailingComma < 0)
        { refDestructuringErrors.trailingComma = this$1.start; }
    } else {
      elt = this$1.parseMaybeAssign(false, refDestructuringErrors);
    }
    elts.push(elt);
  }
  return elts
};

pp$3.checkUnreserved = function(ref) {
  var start = ref.start;
  var end = ref.end;
  var name = ref.name;

  if (this.inGenerator && name === "yield")
    { this.raiseRecoverable(start, "Can not use 'yield' as identifier inside a generator"); }
  if (this.inAsync && name === "await")
    { this.raiseRecoverable(start, "Can not use 'await' as identifier inside an async function"); }
  if (this.isKeyword(name))
    { this.raise(start, ("Unexpected keyword '" + name + "'")); }
  if (this.options.ecmaVersion < 6 &&
    this.input.slice(start, end).indexOf("\\") !== -1) { return }
  var re = this.strict ? this.reservedWordsStrict : this.reservedWords;
  if (re.test(name)) {
    if (!this.inAsync && name === "await")
      { this.raiseRecoverable(start, "Can not use keyword 'await' outside an async function"); }
    this.raiseRecoverable(start, ("The keyword '" + name + "' is reserved"));
  }
};


pp$3.parseIdent = function(liberal, isBinding) {
  var node = this.startNode();
  if (liberal && this.options.allowReserved === "never") { liberal = false; }
  if (this.type === types.name) {
    node.name = this.value;
  } else if (this.type.keyword) {
    node.name = this.type.keyword;

    if ((node.name === "class" || node.name === "function") &&
        (this.lastTokEnd !== this.lastTokStart + 1 || this.input.charCodeAt(this.lastTokStart) !== 46)) {
      this.context.pop();
    }
  } else {
    this.unexpected();
  }
  this.next();
  this.finishNode(node, "Identifier");
  if (!liberal) { this.checkUnreserved(node); }
  return node
};


pp$3.parseYield = function() {
  if (!this.yieldPos) { this.yieldPos = this.start; }

  var node = this.startNode();
  this.next();
  if (this.type === types.semi || this.canInsertSemicolon() || (this.type !== types.star && !this.type.startsExpr)) {
    node.delegate = false;
    node.argument = null;
  } else {
    node.delegate = this.eat(types.star);
    node.argument = this.parseMaybeAssign();
  }
  return this.finishNode(node, "YieldExpression")
};

pp$3.parseAwait = function() {
  if (!this.awaitPos) { this.awaitPos = this.start; }

  var node = this.startNode();
  this.next();
  node.argument = this.parseMaybeUnary(null, true);
  return this.finishNode(node, "AwaitExpression")
};

var pp$4 = Parser.prototype;


pp$4.raise = function(pos, message) {
  var loc = getLineInfo(this.input, pos);
  message += " (" + loc.line + ":" + loc.column + ")";
  var err = new SyntaxError(message);
  err.pos = pos; err.loc = loc; err.raisedAt = this.pos;
  throw err
};

pp$4.raiseRecoverable = pp$4.raise;

pp$4.curPosition = function() {
  if (this.options.locations) {
    return new Position(this.curLine, this.pos - this.lineStart)
  }
};

var pp$5 = Parser.prototype;

var assign = Object.assign || function(target) {
  var sources = [], len = arguments.length - 1;
  while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];

  for (var i = 0, list = sources; i < list.length; i += 1) {
    var source = list[i];

    for (var key in source) {
      if (has(source, key)) {
        target[key] = source[key];
      }
    }
  }
  return target
};


pp$5.enterFunctionScope = function() {
  this.scopeStack.push({var: {}, lexical: {}, childVar: {}, parentLexical: {}});
};

pp$5.exitFunctionScope = function() {
  this.scopeStack.pop();
};

pp$5.enterLexicalScope = function() {
  var parentScope = this.scopeStack[this.scopeStack.length - 1];
  var childScope = {var: {}, lexical: {}, childVar: {}, parentLexical: {}};

  this.scopeStack.push(childScope);
  assign(childScope.parentLexical, parentScope.lexical, parentScope.parentLexical);
};

pp$5.exitLexicalScope = function() {
  var childScope = this.scopeStack.pop();
  var parentScope = this.scopeStack[this.scopeStack.length - 1];

  assign(parentScope.childVar, childScope.var, childScope.childVar);
};

pp$5.canDeclareVarName = function(name) {
  var currentScope = this.scopeStack[this.scopeStack.length - 1];

  return !has(currentScope.lexical, name) && !has(currentScope.parentLexical, name)
};

pp$5.canDeclareLexicalName = function(name) {
  var currentScope = this.scopeStack[this.scopeStack.length - 1];

  return !has(currentScope.lexical, name) && !has(currentScope.var, name) && !has(currentScope.childVar, name)
};

pp$5.declareVarName = function(name) {
  this.scopeStack[this.scopeStack.length - 1].var[name] = true;
};

pp$5.declareLexicalName = function(name) {
  this.scopeStack[this.scopeStack.length - 1].lexical[name] = true;
};

var Node = function Node(parser, pos, loc) {
  this.type = "";
  this.start = pos;
  this.end = 0;
  if (parser.options.locations)
    { this.loc = new SourceLocation(parser, loc); }
  if (parser.options.directSourceFile)
    { this.sourceFile = parser.options.directSourceFile; }
  if (parser.options.ranges)
    { this.range = [pos, 0]; }
};


var pp$6 = Parser.prototype;

pp$6.startNode = function() {
  return new Node(this, this.start, this.startLoc)
};

pp$6.startNodeAt = function(pos, loc) {
  return new Node(this, pos, loc)
};


function finishNodeAt(node, type, pos, loc) {
  node.type = type;
  node.end = pos;
  if (this.options.locations)
    { node.loc.end = loc; }
  if (this.options.ranges)
    { node.range[1] = pos; }
  return node
}

pp$6.finishNode = function(node, type) {
  return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
};


pp$6.finishNodeAt = function(node, type, pos, loc) {
  return finishNodeAt.call(this, node, type, pos, loc)
};


var TokContext = function TokContext(token, isExpr, preserveSpace, override, generator) {
  this.token = token;
  this.isExpr = !!isExpr;
  this.preserveSpace = !!preserveSpace;
  this.override = override;
  this.generator = !!generator;
};

var types$1 = {
  b_stat: new TokContext("{", false),
  b_expr: new TokContext("{", true),
  b_tmpl: new TokContext("${", false),
  p_stat: new TokContext("(", false),
  p_expr: new TokContext("(", true),
  q_tmpl: new TokContext("`", true, true, function (p) { return p.tryReadTemplateToken(); }),
  f_stat: new TokContext("function", false),
  f_expr: new TokContext("function", true),
  f_expr_gen: new TokContext("function", true, false, null, true),
  f_gen: new TokContext("function", false, false, null, true)
};

var pp$7 = Parser.prototype;

pp$7.initialContext = function() {
  return [types$1.b_stat]
};

pp$7.braceIsBlock = function(prevType) {
  var parent = this.curContext();
  if (parent === types$1.f_expr || parent === types$1.f_stat)
    { return true }
  if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr))
    { return !parent.isExpr }

  if (prevType === types._return || prevType === types.name && this.exprAllowed)
    { return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) }
  if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType === types.arrow)
    { return true }
  if (prevType === types.braceL)
    { return parent === types$1.b_stat }
  if (prevType === types._var || prevType === types.name)
    { return false }
  return !this.exprAllowed
};

pp$7.inGeneratorContext = function() {
  var this$1 = this;

  for (var i = this.context.length - 1; i >= 1; i--) {
    var context = this$1.context[i];
    if (context.token === "function")
      { return context.generator }
  }
  return false
};

pp$7.updateContext = function(prevType) {
  var update, type = this.type;
  if (type.keyword && prevType === types.dot)
    { this.exprAllowed = false; }
  else if (update = type.updateContext)
    { update.call(this, prevType); }
  else
    { this.exprAllowed = type.beforeExpr; }
};


types.parenR.updateContext = types.braceR.updateContext = function() {
  if (this.context.length === 1) {
    this.exprAllowed = true;
    return
  }
  var out = this.context.pop();
  if (out === types$1.b_stat && this.curContext().token === "function") {
    out = this.context.pop();
  }
  this.exprAllowed = !out.isExpr;
};

types.braceL.updateContext = function(prevType) {
  this.context.push(this.braceIsBlock(prevType) ? types$1.b_stat : types$1.b_expr);
  this.exprAllowed = true;
};

types.dollarBraceL.updateContext = function() {
  this.context.push(types$1.b_tmpl);
  this.exprAllowed = true;
};

types.parenL.updateContext = function(prevType) {
  var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
  this.context.push(statementParens ? types$1.p_stat : types$1.p_expr);
  this.exprAllowed = true;
};

types.incDec.updateContext = function() {
};

types._function.updateContext = types._class.updateContext = function(prevType) {
  if (prevType.beforeExpr && prevType !== types.semi && prevType !== types._else &&
      !((prevType === types.colon || prevType === types.braceL) && this.curContext() === types$1.b_stat))
    { this.context.push(types$1.f_expr); }
  else
    { this.context.push(types$1.f_stat); }
  this.exprAllowed = false;
};

types.backQuote.updateContext = function() {
  if (this.curContext() === types$1.q_tmpl)
    { this.context.pop(); }
  else
    { this.context.push(types$1.q_tmpl); }
  this.exprAllowed = false;
};

types.star.updateContext = function(prevType) {
  if (prevType === types._function) {
    var index = this.context.length - 1;
    if (this.context[index] === types$1.f_expr)
      { this.context[index] = types$1.f_expr_gen; }
    else
      { this.context[index] = types$1.f_gen; }
  }
  this.exprAllowed = true;
};

types.name.updateContext = function(prevType) {
  var allowed = false;
  if (this.options.ecmaVersion >= 6 && prevType !== types.dot) {
    if (this.value === "of" && !this.exprAllowed ||
        this.value === "yield" && this.inGeneratorContext())
      { allowed = true; }
  }
  this.exprAllowed = allowed;
};

var data = {
  "$LONE": [
    "ASCII",
    "ASCII_Hex_Digit",
    "AHex",
    "Alphabetic",
    "Alpha",
    "Any",
    "Assigned",
    "Bidi_Control",
    "Bidi_C",
    "Bidi_Mirrored",
    "Bidi_M",
    "Case_Ignorable",
    "CI",
    "Cased",
    "Changes_When_Casefolded",
    "CWCF",
    "Changes_When_Casemapped",
    "CWCM",
    "Changes_When_Lowercased",
    "CWL",
    "Changes_When_NFKC_Casefolded",
    "CWKCF",
    "Changes_When_Titlecased",
    "CWT",
    "Changes_When_Uppercased",
    "CWU",
    "Dash",
    "Default_Ignorable_Code_Point",
    "DI",
    "Deprecated",
    "Dep",
    "Diacritic",
    "Dia",
    "Emoji",
    "Emoji_Component",
    "Emoji_Modifier",
    "Emoji_Modifier_Base",
    "Emoji_Presentation",
    "Extender",
    "Ext",
    "Grapheme_Base",
    "Gr_Base",
    "Grapheme_Extend",
    "Gr_Ext",
    "Hex_Digit",
    "Hex",
    "IDS_Binary_Operator",
    "IDSB",
    "IDS_Trinary_Operator",
    "IDST",
    "ID_Continue",
    "IDC",
    "ID_Start",
    "IDS",
    "Ideographic",
    "Ideo",
    "Join_Control",
    "Join_C",
    "Logical_Order_Exception",
    "LOE",
    "Lowercase",
    "Lower",
    "Math",
    "Noncharacter_Code_Point",
    "NChar",
    "Pattern_Syntax",
    "Pat_Syn",
    "Pattern_White_Space",
    "Pat_WS",
    "Quotation_Mark",
    "QMark",
    "Radical",
    "Regional_Indicator",
    "RI",
    "Sentence_Terminal",
    "STerm",
    "Soft_Dotted",
    "SD",
    "Terminal_Punctuation",
    "Term",
    "Unified_Ideograph",
    "UIdeo",
    "Uppercase",
    "Upper",
    "Variation_Selector",
    "VS",
    "White_Space",
    "space",
    "XID_Continue",
    "XIDC",
    "XID_Start",
    "XIDS"
  ],
  "General_Category": [
    "Cased_Letter",
    "LC",
    "Close_Punctuation",
    "Pe",
    "Connector_Punctuation",
    "Pc",
    "Control",
    "Cc",
    "cntrl",
    "Currency_Symbol",
    "Sc",
    "Dash_Punctuation",
    "Pd",
    "Decimal_Number",
    "Nd",
    "digit",
    "Enclosing_Mark",
    "Me",
    "Final_Punctuation",
    "Pf",
    "Format",
    "Cf",
    "Initial_Punctuation",
    "Pi",
    "Letter",
    "L",
    "Letter_Number",
    "Nl",
    "Line_Separator",
    "Zl",
    "Lowercase_Letter",
    "Ll",
    "Mark",
    "M",
    "Combining_Mark",
    "Math_Symbol",
    "Sm",
    "Modifier_Letter",
    "Lm",
    "Modifier_Symbol",
    "Sk",
    "Nonspacing_Mark",
    "Mn",
    "Number",
    "N",
    "Open_Punctuation",
    "Ps",
    "Other",
    "C",
    "Other_Letter",
    "Lo",
    "Other_Number",
    "No",
    "Other_Punctuation",
    "Po",
    "Other_Symbol",
    "So",
    "Paragraph_Separator",
    "Zp",
    "Private_Use",
    "Co",
    "Punctuation",
    "P",
    "punct",
    "Separator",
    "Z",
    "Space_Separator",
    "Zs",
    "Spacing_Mark",
    "Mc",
    "Surrogate",
    "Cs",
    "Symbol",
    "S",
    "Titlecase_Letter",
    "Lt",
    "Unassigned",
    "Cn",
    "Uppercase_Letter",
    "Lu"
  ],
  "Script": [
    "Adlam",
    "Adlm",
    "Ahom",
    "Anatolian_Hieroglyphs",
    "Hluw",
    "Arabic",
    "Arab",
    "Armenian",
    "Armn",
    "Avestan",
    "Avst",
    "Balinese",
    "Bali",
    "Bamum",
    "Bamu",
    "Bassa_Vah",
    "Bass",
    "Batak",
    "Batk",
    "Bengali",
    "Beng",
    "Bhaiksuki",
    "Bhks",
    "Bopomofo",
    "Bopo",
    "Brahmi",
    "Brah",
    "Braille",
    "Brai",
    "Buginese",
    "Bugi",
    "Buhid",
    "Buhd",
    "Canadian_Aboriginal",
    "Cans",
    "Carian",
    "Cari",
    "Caucasian_Albanian",
    "Aghb",
    "Chakma",
    "Cakm",
    "Cham",
    "Cherokee",
    "Cher",
    "Common",
    "Zyyy",
    "Coptic",
    "Copt",
    "Qaac",
    "Cuneiform",
    "Xsux",
    "Cypriot",
    "Cprt",
    "Cyrillic",
    "Cyrl",
    "Deseret",
    "Dsrt",
    "Devanagari",
    "Deva",
    "Duployan",
    "Dupl",
    "Egyptian_Hieroglyphs",
    "Egyp",
    "Elbasan",
    "Elba",
    "Ethiopic",
    "Ethi",
    "Georgian",
    "Geor",
    "Glagolitic",
    "Glag",
    "Gothic",
    "Goth",
    "Grantha",
    "Gran",
    "Greek",
    "Grek",
    "Gujarati",
    "Gujr",
    "Gurmukhi",
    "Guru",
    "Han",
    "Hani",
    "Hangul",
    "Hang",
    "Hanunoo",
    "Hano",
    "Hatran",
    "Hatr",
    "Hebrew",
    "Hebr",
    "Hiragana",
    "Hira",
    "Imperial_Aramaic",
    "Armi",
    "Inherited",
    "Zinh",
    "Qaai",
    "Inscriptional_Pahlavi",
    "Phli",
    "Inscriptional_Parthian",
    "Prti",
    "Javanese",
    "Java",
    "Kaithi",
    "Kthi",
    "Kannada",
    "Knda",
    "Katakana",
    "Kana",
    "Kayah_Li",
    "Kali",
    "Kharoshthi",
    "Khar",
    "Khmer",
    "Khmr",
    "Khojki",
    "Khoj",
    "Khudawadi",
    "Sind",
    "Lao",
    "Laoo",
    "Latin",
    "Latn",
    "Lepcha",
    "Lepc",
    "Limbu",
    "Limb",
    "Linear_A",
    "Lina",
    "Linear_B",
    "Linb",
    "Lisu",
    "Lycian",
    "Lyci",
    "Lydian",
    "Lydi",
    "Mahajani",
    "Mahj",
    "Malayalam",
    "Mlym",
    "Mandaic",
    "Mand",
    "Manichaean",
    "Mani",
    "Marchen",
    "Marc",
    "Masaram_Gondi",
    "Gonm",
    "Meetei_Mayek",
    "Mtei",
    "Mende_Kikakui",
    "Mend",
    "Meroitic_Cursive",
    "Merc",
    "Meroitic_Hieroglyphs",
    "Mero",
    "Miao",
    "Plrd",
    "Modi",
    "Mongolian",
    "Mong",
    "Mro",
    "Mroo",
    "Multani",
    "Mult",
    "Myanmar",
    "Mymr",
    "Nabataean",
    "Nbat",
    "New_Tai_Lue",
    "Talu",
    "Newa",
    "Nko",
    "Nkoo",
    "Nushu",
    "Nshu",
    "Ogham",
    "Ogam",
    "Ol_Chiki",
    "Olck",
    "Old_Hungarian",
    "Hung",
    "Old_Italic",
    "Ital",
    "Old_North_Arabian",
    "Narb",
    "Old_Permic",
    "Perm",
    "Old_Persian",
    "Xpeo",
    "Old_South_Arabian",
    "Sarb",
    "Old_Turkic",
    "Orkh",
    "Oriya",
    "Orya",
    "Osage",
    "Osge",
    "Osmanya",
    "Osma",
    "Pahawh_Hmong",
    "Hmng",
    "Palmyrene",
    "Palm",
    "Pau_Cin_Hau",
    "Pauc",
    "Phags_Pa",
    "Phag",
    "Phoenician",
    "Phnx",
    "Psalter_Pahlavi",
    "Phlp",
    "Rejang",
    "Rjng",
    "Runic",
    "Runr",
    "Samaritan",
    "Samr",
    "Saurashtra",
    "Saur",
    "Sharada",
    "Shrd",
    "Shavian",
    "Shaw",
    "Siddham",
    "Sidd",
    "SignWriting",
    "Sgnw",
    "Sinhala",
    "Sinh",
    "Sora_Sompeng",
    "Sora",
    "Soyombo",
    "Soyo",
    "Sundanese",
    "Sund",
    "Syloti_Nagri",
    "Sylo",
    "Syriac",
    "Syrc",
    "Tagalog",
    "Tglg",
    "Tagbanwa",
    "Tagb",
    "Tai_Le",
    "Tale",
    "Tai_Tham",
    "Lana",
    "Tai_Viet",
    "Tavt",
    "Takri",
    "Takr",
    "Tamil",
    "Taml",
    "Tangut",
    "Tang",
    "Telugu",
    "Telu",
    "Thaana",
    "Thaa",
    "Thai",
    "Tibetan",
    "Tibt",
    "Tifinagh",
    "Tfng",
    "Tirhuta",
    "Tirh",
    "Ugaritic",
    "Ugar",
    "Vai",
    "Vaii",
    "Warang_Citi",
    "Wara",
    "Yi",
    "Yiii",
    "Zanabazar_Square",
    "Zanb"
  ]
};
Array.prototype.push.apply(data.$LONE, data.General_Category);
data.gc = data.General_Category;
data.sc = data.Script_Extensions = data.scx = data.Script;

var pp$9 = Parser.prototype;

var RegExpValidationState = function RegExpValidationState(parser) {
  this.parser = parser;
  this.validFlags = "gim" + (parser.options.ecmaVersion >= 6 ? "uy" : "") + (parser.options.ecmaVersion >= 9 ? "s" : "");
  this.source = "";
  this.flags = "";
  this.start = 0;
  this.switchU = false;
  this.switchN = false;
  this.pos = 0;
  this.lastIntValue = 0;
  this.lastStringValue = "";
  this.lastAssertionIsQuantifiable = false;
  this.numCapturingParens = 0;
  this.maxBackReference = 0;
  this.groupNames = [];
  this.backReferenceNames = [];
};

RegExpValidationState.prototype.reset = function reset (start, pattern, flags) {
  var unicode = flags.indexOf("u") !== -1;
  this.start = start | 0;
  this.source = pattern + "";
  this.flags = flags;
  this.switchU = unicode && this.parser.options.ecmaVersion >= 6;
  this.switchN = unicode && this.parser.options.ecmaVersion >= 9;
};

RegExpValidationState.prototype.raise = function raise (message) {
  this.parser.raiseRecoverable(this.start, ("Invalid regular expression: /" + (this.source) + "/: " + message));
};

RegExpValidationState.prototype.at = function at (i) {
  var s = this.source;
  var l = s.length;
  if (i >= l) {
    return -1
  }
  var c = s.charCodeAt(i);
  if (!this.switchU || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l) {
    return c
  }
  return (c << 10) + s.charCodeAt(i + 1) - 0x35FDC00
};

RegExpValidationState.prototype.nextIndex = function nextIndex (i) {
  var s = this.source;
  var l = s.length;
  if (i >= l) {
    return l
  }
  var c = s.charCodeAt(i);
  if (!this.switchU || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l) {
    return i + 1
  }
  return i + 2
};

RegExpValidationState.prototype.current = function current () {
  return this.at(this.pos)
};

RegExpValidationState.prototype.lookahead = function lookahead () {
  return this.at(this.nextIndex(this.pos))
};

RegExpValidationState.prototype.advance = function advance () {
  this.pos = this.nextIndex(this.pos);
};

RegExpValidationState.prototype.eat = function eat (ch) {
  if (this.current() === ch) {
    this.advance();
    return true
  }
  return false
};

function codePointToString$1(ch) {
  if (ch <= 0xFFFF) { return String.fromCharCode(ch) }
  ch -= 0x10000;
  return String.fromCharCode((ch >> 10) + 0xD800, (ch & 0x03FF) + 0xDC00)
}

pp$9.validateRegExpFlags = function(state) {
  var this$1 = this;

  var validFlags = state.validFlags;
  var flags = state.flags;

  for (var i = 0; i < flags.length; i++) {
    var flag = flags.charAt(i);
    if (validFlags.indexOf(flag) === -1) {
      this$1.raise(state.start, "Invalid regular expression flag");
    }
    if (flags.indexOf(flag, i + 1) > -1) {
      this$1.raise(state.start, "Duplicate regular expression flag");
    }
  }
};

pp$9.validateRegExpPattern = function(state) {
  this.regexp_pattern(state);

  if (!state.switchN && this.options.ecmaVersion >= 9 && state.groupNames.length > 0) {
    state.switchN = true;
    this.regexp_pattern(state);
  }
};

pp$9.regexp_pattern = function(state) {
  state.pos = 0;
  state.lastIntValue = 0;
  state.lastStringValue = "";
  state.lastAssertionIsQuantifiable = false;
  state.numCapturingParens = 0;
  state.maxBackReference = 0;
  state.groupNames.length = 0;
  state.backReferenceNames.length = 0;

  this.regexp_disjunction(state);

  if (state.pos !== state.source.length) {
    if (state.eat(0x29 )) {
      state.raise("Unmatched ')'");
    }
    if (state.eat(0x5D ) || state.eat(0x7D )) {
      state.raise("Lone quantifier brackets");
    }
  }
  if (state.maxBackReference > state.numCapturingParens) {
    state.raise("Invalid escape");
  }
  for (var i = 0, list = state.backReferenceNames; i < list.length; i += 1) {
    var name = list[i];

    if (state.groupNames.indexOf(name) === -1) {
      state.raise("Invalid named capture referenced");
    }
  }
};

pp$9.regexp_disjunction = function(state) {
  var this$1 = this;

  this.regexp_alternative(state);
  while (state.eat(0x7C )) {
    this$1.regexp_alternative(state);
  }

  if (this.regexp_eatQuantifier(state, true)) {
    state.raise("Nothing to repeat");
  }
  if (state.eat(0x7B )) {
    state.raise("Lone quantifier brackets");
  }
};

pp$9.regexp_alternative = function(state) {
  while (state.pos < state.source.length && this.regexp_eatTerm(state))
    {  }
};

pp$9.regexp_eatTerm = function(state) {
  if (this.regexp_eatAssertion(state)) {
    if (state.lastAssertionIsQuantifiable && this.regexp_eatQuantifier(state)) {
      if (state.switchU) {
        state.raise("Invalid quantifier");
      }
    }
    return true
  }

  if (state.switchU ? this.regexp_eatAtom(state) : this.regexp_eatExtendedAtom(state)) {
    this.regexp_eatQuantifier(state);
    return true
  }

  return false
};

pp$9.regexp_eatAssertion = function(state) {
  var start = state.pos;
  state.lastAssertionIsQuantifiable = false;

  if (state.eat(0x5E ) || state.eat(0x24 )) {
    return true
  }

  if (state.eat(0x5C )) {
    if (state.eat(0x42 ) || state.eat(0x62 )) {
      return true
    }
    state.pos = start;
  }

  if (state.eat(0x28 ) && state.eat(0x3F )) {
    var lookbehind = false;
    if (this.options.ecmaVersion >= 9) {
      lookbehind = state.eat(0x3C );
    }
    if (state.eat(0x3D ) || state.eat(0x21 )) {
      this.regexp_disjunction(state);
      if (!state.eat(0x29 )) {
        state.raise("Unterminated group");
      }
      state.lastAssertionIsQuantifiable = !lookbehind;
      return true
    }
  }

  state.pos = start;
  return false
};

pp$9.regexp_eatQuantifier = function(state, noError) {
  if ( noError === void 0 ) noError = false;

  if (this.regexp_eatQuantifierPrefix(state, noError)) {
    state.eat(0x3F );
    return true
  }
  return false
};

pp$9.regexp_eatQuantifierPrefix = function(state, noError) {
  return (
    state.eat(0x2A ) ||
    state.eat(0x2B ) ||
    state.eat(0x3F ) ||
    this.regexp_eatBracedQuantifier(state, noError)
  )
};
pp$9.regexp_eatBracedQuantifier = function(state, noError) {
  var start = state.pos;
  if (state.eat(0x7B )) {
    var min = 0, max = -1;
    if (this.regexp_eatDecimalDigits(state)) {
      min = state.lastIntValue;
      if (state.eat(0x2C ) && this.regexp_eatDecimalDigits(state)) {
        max = state.lastIntValue;
      }
      if (state.eat(0x7D )) {
        if (max !== -1 && max < min && !noError) {
          state.raise("numbers out of order in {} quantifier");
        }
        return true
      }
    }
    if (state.switchU && !noError) {
      state.raise("Incomplete quantifier");
    }
    state.pos = start;
  }
  return false
};

pp$9.regexp_eatAtom = function(state) {
  return (
    this.regexp_eatPatternCharacters(state) ||
    state.eat(0x2E ) ||
    this.regexp_eatReverseSolidusAtomEscape(state) ||
    this.regexp_eatCharacterClass(state) ||
    this.regexp_eatUncapturingGroup(state) ||
    this.regexp_eatCapturingGroup(state)
  )
};
pp$9.regexp_eatReverseSolidusAtomEscape = function(state) {
  var start = state.pos;
  if (state.eat(0x5C )) {
    if (this.regexp_eatAtomEscape(state)) {
      return true
    }
    state.pos = start;
  }
  return false
};
pp$9.regexp_eatUncapturingGroup = function(state) {
  var start = state.pos;
  if (state.eat(0x28 )) {
    if (state.eat(0x3F ) && state.eat(0x3A )) {
      this.regexp_disjunction(state);
      if (state.eat(0x29 )) {
        return true
      }
      state.raise("Unterminated group");
    }
    state.pos = start;
  }
  return false
};
pp$9.regexp_eatCapturingGroup = function(state) {
  if (state.eat(0x28 )) {
    if (this.options.ecmaVersion >= 9) {
      this.regexp_groupSpecifier(state);
    } else if (state.current() === 0x3F ) {
      state.raise("Invalid group");
    }
    this.regexp_disjunction(state);
    if (state.eat(0x29 )) {
      state.numCapturingParens += 1;
      return true
    }
    state.raise("Unterminated group");
  }
  return false
};

pp$9.regexp_eatExtendedAtom = function(state) {
  return (
    state.eat(0x2E ) ||
    this.regexp_eatReverseSolidusAtomEscape(state) ||
    this.regexp_eatCharacterClass(state) ||
    this.regexp_eatUncapturingGroup(state) ||
    this.regexp_eatCapturingGroup(state) ||
    this.regexp_eatInvalidBracedQuantifier(state) ||
    this.regexp_eatExtendedPatternCharacter(state)
  )
};

pp$9.regexp_eatInvalidBracedQuantifier = function(state) {
  if (this.regexp_eatBracedQuantifier(state, true)) {
    state.raise("Nothing to repeat");
  }
  return false
};

pp$9.regexp_eatSyntaxCharacter = function(state) {
  var ch = state.current();
  if (isSyntaxCharacter(ch)) {
    state.lastIntValue = ch;
    state.advance();
    return true
  }
  return false
};
function isSyntaxCharacter(ch) {
  return (
    ch === 0x24  ||
    ch >= 0x28  && ch <= 0x2B  ||
    ch === 0x2E  ||
    ch === 0x3F  ||
    ch >= 0x5B  && ch <= 0x5E  ||
    ch >= 0x7B  && ch <= 0x7D 
  )
}

pp$9.regexp_eatPatternCharacters = function(state) {
  var start = state.pos;
  var ch = 0;
  while ((ch = state.current()) !== -1 && !isSyntaxCharacter(ch)) {
    state.advance();
  }
  return state.pos !== start
};

pp$9.regexp_eatExtendedPatternCharacter = function(state) {
  var ch = state.current();
  if (
    ch !== -1 &&
    ch !== 0x24  &&
    !(ch >= 0x28  && ch <= 0x2B ) &&
    ch !== 0x2E  &&
    ch !== 0x3F  &&
    ch !== 0x5B  &&
    ch !== 0x5E  &&
    ch !== 0x7C 
  ) {
    state.advance();
    return true
  }
  return false
};

pp$9.regexp_groupSpecifier = function(state) {
  if (state.eat(0x3F )) {
    if (this.regexp_eatGroupName(state)) {
      if (state.groupNames.indexOf(state.lastStringValue) !== -1) {
        state.raise("Duplicate capture group name");
      }
      state.groupNames.push(state.lastStringValue);
      return
    }
    state.raise("Invalid group");
  }
};

pp$9.regexp_eatGroupName = function(state) {
  state.lastStringValue = "";
  if (state.eat(0x3C )) {
    if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E )) {
      return true
    }
    state.raise("Invalid capture group name");
  }
  return false
};

pp$9.regexp_eatRegExpIdentifierName = function(state) {
  state.lastStringValue = "";
  if (this.regexp_eatRegExpIdentifierStart(state)) {
    state.lastStringValue += codePointToString$1(state.lastIntValue);
    while (this.regexp_eatRegExpIdentifierPart(state)) {
      state.lastStringValue += codePointToString$1(state.lastIntValue);
    }
    return true
  }
  return false
};

pp$9.regexp_eatRegExpIdentifierStart = function(state) {
  var start = state.pos;
  var ch = state.current();
  state.advance();

  if (ch === 0x5C  && this.regexp_eatRegExpUnicodeEscapeSequence(state)) {
    ch = state.lastIntValue;
  }
  if (isRegExpIdentifierStart(ch)) {
    state.lastIntValue = ch;
    return true
  }

  state.pos = start;
  return false
};
function isRegExpIdentifierStart(ch) {
  return isIdentifierStart(ch, true) || ch === 0x24  || ch === 0x5F 
}

pp$9.regexp_eatRegExpIdentifierPart = function(state) {
  var start = state.pos;
  var ch = state.current();
  state.advance();

  if (ch === 0x5C  && this.regexp_eatRegExpUnicodeEscapeSequence(state)) {
    ch = state.lastIntValue;
  }
  if (isRegExpIdentifierPart(ch)) {
    state.lastIntValue = ch;
    return true
  }

  state.pos = start;
  return false
};
function isRegExpIdentifierPart(ch) {
  return isIdentifierChar(ch, true) || ch === 0x24  || ch === 0x5F  || ch === 0x200C  || ch === 0x200D 
}

pp$9.regexp_eatAtomEscape = function(state) {
  if (
    this.regexp_eatBackReference(state) ||
    this.regexp_eatCharacterClassEscape(state) ||
    this.regexp_eatCharacterEscape(state) ||
    (state.switchN && this.regexp_eatKGroupName(state))
  ) {
    return true
  }
  if (state.switchU) {
    if (state.current() === 0x63 ) {
      state.raise("Invalid unicode escape");
    }
    state.raise("Invalid escape");
  }
  return false
};
pp$9.regexp_eatBackReference = function(state) {
  var start = state.pos;
  if (this.regexp_eatDecimalEscape(state)) {
    var n = state.lastIntValue;
    if (state.switchU) {
      if (n > state.maxBackReference) {
        state.maxBackReference = n;
      }
      return true
    }
    if (n <= state.numCapturingParens) {
      return true
    }
    state.pos = start;
  }
  return false
};
pp$9.regexp_eatKGroupName = function(state) {
  if (state.eat(0x6B )) {
    if (this.regexp_eatGroupName(state)) {
      state.backReferenceNames.push(state.lastStringValue);
      return true
    }
    state.raise("Invalid named reference");
  }
  return false
};

pp$9.regexp_eatCharacterEscape = function(state) {
  return (
    this.regexp_eatControlEscape(state) ||
    this.regexp_eatCControlLetter(state) ||
    this.regexp_eatZero(state) ||
    this.regexp_eatHexEscapeSequence(state) ||
    this.regexp_eatRegExpUnicodeEscapeSequence(state) ||
    (!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
    this.regexp_eatIdentityEscape(state)
  )
};
pp$9.regexp_eatCControlLetter = function(state) {
  var start = state.pos;
  if (state.eat(0x63 )) {
    if (this.regexp_eatControlLetter(state)) {
      return true
    }
    state.pos = start;
  }
  return false
};
pp$9.regexp_eatZero = function(state) {
  if (state.current() === 0x30  && !isDecimalDigit(state.lookahead())) {
    state.lastIntValue = 0;
    state.advance();
    return true
  }
  return false
};

pp$9.regexp_eatControlEscape = function(state) {
  var ch = state.current();
  if (ch === 0x74 ) {
    state.lastIntValue = 0x09; 
    state.advance();
    return true
  }
  if (ch === 0x6E ) {
    state.lastIntValue = 0x0A; 
    state.advance();
    return true
  }
  if (ch === 0x76 ) {
    state.lastIntValue = 0x0B; 
    state.advance();
    return true
  }
  if (ch === 0x66 ) {
    state.lastIntValue = 0x0C; 
    state.advance();
    return true
  }
  if (ch === 0x72 ) {
    state.lastIntValue = 0x0D; 
    state.advance();
    return true
  }
  return false
};

pp$9.regexp_eatControlLetter = function(state) {
  var ch = state.current();
  if (isControlLetter(ch)) {
    state.lastIntValue = ch % 0x20;
    state.advance();
    return true
  }
  return false
};
function isControlLetter(ch) {
  return (
    (ch >= 0x41  && ch <= 0x5A ) ||
    (ch >= 0x61  && ch <= 0x7A )
  )
}

pp$9.regexp_eatRegExpUnicodeEscapeSequence = function(state) {
  var start = state.pos;

  if (state.eat(0x75 )) {
    if (this.regexp_eatFixedHexDigits(state, 4)) {
      var lead = state.lastIntValue;
      if (state.switchU && lead >= 0xD800 && lead <= 0xDBFF) {
        var leadSurrogateEnd = state.pos;
        if (state.eat(0x5C ) && state.eat(0x75 ) && this.regexp_eatFixedHexDigits(state, 4)) {
          var trail = state.lastIntValue;
          if (trail >= 0xDC00 && trail <= 0xDFFF) {
            state.lastIntValue = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;
            return true
          }
        }
        state.pos = leadSurrogateEnd;
        state.lastIntValue = lead;
      }
      return true
    }
    if (
      state.switchU &&
      state.eat(0x7B ) &&
      this.regexp_eatHexDigits(state) &&
      state.eat(0x7D ) &&
      isValidUnicode(state.lastIntValue)
    ) {
      return true
    }
    if (state.switchU) {
      state.raise("Invalid unicode escape");
    }
    state.pos = start;
  }

  return false
};
function isValidUnicode(ch) {
  return ch >= 0 && ch <= 0x10FFFF
}

pp$9.regexp_eatIdentityEscape = function(state) {
  if (state.switchU) {
    if (this.regexp_eatSyntaxCharacter(state)) {
      return true
    }
    if (state.eat(0x2F )) {
      state.lastIntValue = 0x2F; 
      return true
    }
    return false
  }

  var ch = state.current();
  if (ch !== 0x63  && (!state.switchN || ch !== 0x6B )) {
    state.lastIntValue = ch;
    state.advance();
    return true
  }

  return false
};

pp$9.regexp_eatDecimalEscape = function(state) {
  state.lastIntValue = 0;
  var ch = state.current();
  if (ch >= 0x31  && ch <= 0x39 ) {
    do {
      state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 );
      state.advance();
    } while ((ch = state.current()) >= 0x30  && ch <= 0x39 )
    return true
  }
  return false
};

pp$9.regexp_eatCharacterClassEscape = function(state) {
  var ch = state.current();

  if (isCharacterClassEscape(ch)) {
    state.lastIntValue = -1;
    state.advance();
    return true
  }

  if (
    state.switchU &&
    this.options.ecmaVersion >= 9 &&
    (ch === 0x50  || ch === 0x70 )
  ) {
    state.lastIntValue = -1;
    state.advance();
    if (
      state.eat(0x7B ) &&
      this.regexp_eatUnicodePropertyValueExpression(state) &&
      state.eat(0x7D )
    ) {
      return true
    }
    state.raise("Invalid property name");
  }

  return false
};
function isCharacterClassEscape(ch) {
  return (
    ch === 0x64  ||
    ch === 0x44  ||
    ch === 0x73  ||
    ch === 0x53  ||
    ch === 0x77  ||
    ch === 0x57 
  )
}

pp$9.regexp_eatUnicodePropertyValueExpression = function(state) {
  var start = state.pos;

  if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D )) {
    var name = state.lastStringValue;
    if (this.regexp_eatUnicodePropertyValue(state)) {
      var value = state.lastStringValue;
      this.regexp_validateUnicodePropertyNameAndValue(state, name, value);
      return true
    }
  }
  state.pos = start;

  if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) {
    var nameOrValue = state.lastStringValue;
    this.regexp_validateUnicodePropertyNameOrValue(state, nameOrValue);
    return true
  }
  return false
};
pp$9.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {
  if (!data.hasOwnProperty(name) || data[name].indexOf(value) === -1) {
    state.raise("Invalid property name");
  }
};
pp$9.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) {
  if (data.$LONE.indexOf(nameOrValue) === -1) {
    state.raise("Invalid property name");
  }
};

pp$9.regexp_eatUnicodePropertyName = function(state) {
  var ch = 0;
  state.lastStringValue = "";
  while (isUnicodePropertyNameCharacter(ch = state.current())) {
    state.lastStringValue += codePointToString$1(ch);
    state.advance();
  }
  return state.lastStringValue !== ""
};
function isUnicodePropertyNameCharacter(ch) {
  return isControlLetter(ch) || ch === 0x5F 
}

pp$9.regexp_eatUnicodePropertyValue = function(state) {
  var ch = 0;
  state.lastStringValue = "";
  while (isUnicodePropertyValueCharacter(ch = state.current())) {
    state.lastStringValue += codePointToString$1(ch);
    state.advance();
  }
  return state.lastStringValue !== ""
};
function isUnicodePropertyValueCharacter(ch) {
  return isUnicodePropertyNameCharacter(ch) || isDecimalDigit(ch)
}

pp$9.regexp_eatLoneUnicodePropertyNameOrValue = function(state) {
  return this.regexp_eatUnicodePropertyValue(state)
};

pp$9.regexp_eatCharacterClass = function(state) {
  if (state.eat(0x5B )) {
    state.eat(0x5E );
    this.regexp_classRanges(state);
    if (state.eat(0x5D )) {
      return true
    }
    state.raise("Unterminated character class");
  }
  return false
};

pp$9.regexp_classRanges = function(state) {
  var this$1 = this;

  while (this.regexp_eatClassAtom(state)) {
    var left = state.lastIntValue;
    if (state.eat(0x2D ) && this$1.regexp_eatClassAtom(state)) {
      var right = state.lastIntValue;
      if (state.switchU && (left === -1 || right === -1)) {
        state.raise("Invalid character class");
      }
      if (left !== -1 && right !== -1 && left > right) {
        state.raise("Range out of order in character class");
      }
    }
  }
};

pp$9.regexp_eatClassAtom = function(state) {
  var start = state.pos;

  if (state.eat(0x5C )) {
    if (this.regexp_eatClassEscape(state)) {
      return true
    }
    if (state.switchU) {
      var ch$1 = state.current();
      if (ch$1 === 0x63  || isOctalDigit(ch$1)) {
        state.raise("Invalid class escape");
      }
      state.raise("Invalid escape");
    }
    state.pos = start;
  }

  var ch = state.current();
  if (ch !== 0x5D ) {
    state.lastIntValue = ch;
    state.advance();
    return true
  }

  return false
};

pp$9.regexp_eatClassEscape = function(state) {
  var start = state.pos;

  if (state.eat(0x62 )) {
    state.lastIntValue = 0x08; 
    return true
  }

  if (state.switchU && state.eat(0x2D )) {
    state.lastIntValue = 0x2D; 
    return true
  }

  if (!state.switchU && state.eat(0x63 )) {
    if (this.regexp_eatClassControlLetter(state)) {
      return true
    }
    state.pos = start;
  }

  return (
    this.regexp_eatCharacterClassEscape(state) ||
    this.regexp_eatCharacterEscape(state)
  )
};

pp$9.regexp_eatClassControlLetter = function(state) {
  var ch = state.current();
  if (isDecimalDigit(ch) || ch === 0x5F ) {
    state.lastIntValue = ch % 0x20;
    state.advance();
    return true
  }
  return false
};

pp$9.regexp_eatHexEscapeSequence = function(state) {
  var start = state.pos;
  if (state.eat(0x78 )) {
    if (this.regexp_eatFixedHexDigits(state, 2)) {
      return true
    }
    if (state.switchU) {
      state.raise("Invalid escape");
    }
    state.pos = start;
  }
  return false
};

pp$9.regexp_eatDecimalDigits = function(state) {
  var start = state.pos;
  var ch = 0;
  state.lastIntValue = 0;
  while (isDecimalDigit(ch = state.current())) {
    state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 );
    state.advance();
  }
  return state.pos !== start
};
function isDecimalDigit(ch) {
  return ch >= 0x30  && ch <= 0x39 
}

pp$9.regexp_eatHexDigits = function(state) {
  var start = state.pos;
  var ch = 0;
  state.lastIntValue = 0;
  while (isHexDigit(ch = state.current())) {
    state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);
    state.advance();
  }
  return state.pos !== start
};
function isHexDigit(ch) {
  return (
    (ch >= 0x30  && ch <= 0x39 ) ||
    (ch >= 0x41  && ch <= 0x46 ) ||
    (ch >= 0x61  && ch <= 0x66 )
  )
}
function hexToInt(ch) {
  if (ch >= 0x41  && ch <= 0x46 ) {
    return 10 + (ch - 0x41 )
  }
  if (ch >= 0x61  && ch <= 0x66 ) {
    return 10 + (ch - 0x61 )
  }
  return ch - 0x30 
}

pp$9.regexp_eatLegacyOctalEscapeSequence = function(state) {
  if (this.regexp_eatOctalDigit(state)) {
    var n1 = state.lastIntValue;
    if (this.regexp_eatOctalDigit(state)) {
      var n2 = state.lastIntValue;
      if (n1 <= 3 && this.regexp_eatOctalDigit(state)) {
        state.lastIntValue = n1 * 64 + n2 * 8 + state.lastIntValue;
      } else {
        state.lastIntValue = n1 * 8 + n2;
      }
    } else {
      state.lastIntValue = n1;
    }
    return true
  }
  return false
};

pp$9.regexp_eatOctalDigit = function(state) {
  var ch = state.current();
  if (isOctalDigit(ch)) {
    state.lastIntValue = ch - 0x30; 
    state.advance();
    return true
  }
  state.lastIntValue = 0;
  return false
};
function isOctalDigit(ch) {
  return ch >= 0x30  && ch <= 0x37 
}

pp$9.regexp_eatFixedHexDigits = function(state, length) {
  var start = state.pos;
  state.lastIntValue = 0;
  for (var i = 0; i < length; ++i) {
    var ch = state.current();
    if (!isHexDigit(ch)) {
      state.pos = start;
      return false
    }
    state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);
    state.advance();
  }
  return true
};


var Token = function Token(p) {
  this.type = p.type;
  this.value = p.value;
  this.start = p.start;
  this.end = p.end;
  if (p.options.locations)
    { this.loc = new SourceLocation(p, p.startLoc, p.endLoc); }
  if (p.options.ranges)
    { this.range = [p.start, p.end]; }
};


var pp$8 = Parser.prototype;


pp$8.next = function() {
  if (this.options.onToken)
    { this.options.onToken(new Token(this)); }

  this.lastTokEnd = this.end;
  this.lastTokStart = this.start;
  this.lastTokEndLoc = this.endLoc;
  this.lastTokStartLoc = this.startLoc;
  this.nextToken();
};

pp$8.getToken = function() {
  this.next();
  return new Token(this)
};

if (typeof Symbol !== "undefined")
  { pp$8[Symbol.iterator] = function() {
    var this$1 = this;

    return {
      next: function () {
        var token = this$1.getToken();
        return {
          done: token.type === types.eof,
          value: token
        }
      }
    }
  }; }


pp$8.curContext = function() {
  return this.context[this.context.length - 1]
};


pp$8.nextToken = function() {
  var curContext = this.curContext();
  if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }

  this.start = this.pos;
  if (this.options.locations) { this.startLoc = this.curPosition(); }
  if (this.pos >= this.input.length) { return this.finishToken(types.eof) }

  if (curContext.override) { return curContext.override(this) }
  else { this.readToken(this.fullCharCodeAtPos()); }
};

pp$8.readToken = function(code) {
  if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 )
    { return this.readWord() }

  return this.getTokenFromCode(code)
};

pp$8.fullCharCodeAtPos = function() {
  var code = this.input.charCodeAt(this.pos);
  if (code <= 0xd7ff || code >= 0xe000) { return code }
  var next = this.input.charCodeAt(this.pos + 1);
  return (code << 10) + next - 0x35fdc00
};

pp$8.skipBlockComment = function() {
  var this$1 = this;

  var startLoc = this.options.onComment && this.curPosition();
  var start = this.pos, end = this.input.indexOf("*/", this.pos += 2);
  if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); }
  this.pos = end + 2;
  if (this.options.locations) {
    lineBreakG.lastIndex = start;
    var match;
    while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
      ++this$1.curLine;
      this$1.lineStart = match.index + match[0].length;
    }
  }
  if (this.options.onComment)
    { this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,
                           startLoc, this.curPosition()); }
};

pp$8.skipLineComment = function(startSkip) {
  var this$1 = this;

  var start = this.pos;
  var startLoc = this.options.onComment && this.curPosition();
  var ch = this.input.charCodeAt(this.pos += startSkip);
  while (this.pos < this.input.length && !isNewLine(ch)) {
    ch = this$1.input.charCodeAt(++this$1.pos);
  }
  if (this.options.onComment)
    { this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,
                           startLoc, this.curPosition()); }
};


pp$8.skipSpace = function() {
  var this$1 = this;

  loop: while (this.pos < this.input.length) {
    var ch = this$1.input.charCodeAt(this$1.pos);
    switch (ch) {
    case 32: case 160: 
      ++this$1.pos;
      break
    case 13:
      if (this$1.input.charCodeAt(this$1.pos + 1) === 10) {
        ++this$1.pos;
      }
    case 10: case 8232: case 8233:
      ++this$1.pos;
      if (this$1.options.locations) {
        ++this$1.curLine;
        this$1.lineStart = this$1.pos;
      }
      break
    case 47: 
      switch (this$1.input.charCodeAt(this$1.pos + 1)) {
      case 42: 
        this$1.skipBlockComment();
        break
      case 47:
        this$1.skipLineComment(2);
        break
      default:
        break loop
      }
      break
    default:
      if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
        ++this$1.pos;
      } else {
        break loop
      }
    }
  }
};


pp$8.finishToken = function(type, val) {
  this.end = this.pos;
  if (this.options.locations) { this.endLoc = this.curPosition(); }
  var prevType = this.type;
  this.type = type;
  this.value = val;

  this.updateContext(prevType);
};


pp$8.readToken_dot = function() {
  var next = this.input.charCodeAt(this.pos + 1);
  if (next >= 48 && next <= 57) { return this.readNumber(true) }
  var next2 = this.input.charCodeAt(this.pos + 2);
  if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { 
    this.pos += 3;
    return this.finishToken(types.ellipsis)
  } else {
    ++this.pos;
    return this.finishToken(types.dot)
  }
};

pp$8.readToken_slash = function() { 
  var next = this.input.charCodeAt(this.pos + 1);
  if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
  if (next === 61) { return this.finishOp(types.assign, 2) }
  return this.finishOp(types.slash, 1)
};

pp$8.readToken_mult_modulo_exp = function(code) { 
  var next = this.input.charCodeAt(this.pos + 1);
  var size = 1;
  var tokentype = code === 42 ? types.star : types.modulo;

  if (this.options.ecmaVersion >= 7 && code === 42 && next === 42) {
    ++size;
    tokentype = types.starstar;
    next = this.input.charCodeAt(this.pos + 2);
  }

  if (next === 61) { return this.finishOp(types.assign, size + 1) }
  return this.finishOp(tokentype, size)
};

pp$8.readToken_pipe_amp = function(code) { 
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === code) { return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2) }
  if (next === 61) { return this.finishOp(types.assign, 2) }
  return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1)
};

pp$8.readToken_caret = function() { 
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === 61) { return this.finishOp(types.assign, 2) }
  return this.finishOp(types.bitwiseXOR, 1)
};

pp$8.readToken_plus_min = function(code) { 
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === code) {
    if (next === 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 62 &&
        (this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) {
      this.skipLineComment(3);
      this.skipSpace();
      return this.nextToken()
    }
    return this.finishOp(types.incDec, 2)
  }
  if (next === 61) { return this.finishOp(types.assign, 2) }
  return this.finishOp(types.plusMin, 1)
};

pp$8.readToken_lt_gt = function(code) { 
  var next = this.input.charCodeAt(this.pos + 1);
  var size = 1;
  if (next === code) {
    size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
    if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) }
    return this.finishOp(types.bitShift, size)
  }
  if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 45 &&
      this.input.charCodeAt(this.pos + 3) === 45) {
    this.skipLineComment(4);
    this.skipSpace();
    return this.nextToken()
  }
  if (next === 61) { size = 2; }
  return this.finishOp(types.relational, size)
};

pp$8.readToken_eq_excl = function(code) { 
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === 61) { return this.finishOp(types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
  if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { 
    this.pos += 2;
    return this.finishToken(types.arrow)
  }
  return this.finishOp(code === 61 ? types.eq : types.prefix, 1)
};

pp$8.getTokenFromCode = function(code) {
  switch (code) {
  case 46: 
    return this.readToken_dot()

  case 40: ++this.pos; return this.finishToken(types.parenL)
  case 41: ++this.pos; return this.finishToken(types.parenR)
  case 59: ++this.pos; return this.finishToken(types.semi)
  case 44: ++this.pos; return this.finishToken(types.comma)
  case 91: ++this.pos; return this.finishToken(types.bracketL)
  case 93: ++this.pos; return this.finishToken(types.bracketR)
  case 123: ++this.pos; return this.finishToken(types.braceL)
  case 125: ++this.pos; return this.finishToken(types.braceR)
  case 58: ++this.pos; return this.finishToken(types.colon)
  case 63: ++this.pos; return this.finishToken(types.question)

  case 96: 
    if (this.options.ecmaVersion < 6) { break }
    ++this.pos;
    return this.finishToken(types.backQuote)

  case 48: 
    var next = this.input.charCodeAt(this.pos + 1);
    if (next === 120 || next === 88) { return this.readRadixNumber(16) } 
    if (this.options.ecmaVersion >= 6) {
      if (next === 111 || next === 79) { return this.readRadixNumber(8) } 
      if (next === 98 || next === 66) { return this.readRadixNumber(2) } 
    }

  case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: 
    return this.readNumber(false)

  case 34: case 39: 
    return this.readString(code)


  case 47: 
    return this.readToken_slash()

  case 37: case 42: 
    return this.readToken_mult_modulo_exp(code)

  case 124: case 38: 
    return this.readToken_pipe_amp(code)

  case 94: 
    return this.readToken_caret()

  case 43: case 45: 
    return this.readToken_plus_min(code)

  case 60: case 62: 
    return this.readToken_lt_gt(code)

  case 61: case 33: 
    return this.readToken_eq_excl(code)

  case 126: 
    return this.finishOp(types.prefix, 1)
  }

  this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
};

pp$8.finishOp = function(type, size) {
  var str = this.input.slice(this.pos, this.pos + size);
  this.pos += size;
  return this.finishToken(type, str)
};

pp$8.readRegexp = function() {
  var this$1 = this;

  var escaped, inClass, start = this.pos;
  for (;;) {
    if (this$1.pos >= this$1.input.length) { this$1.raise(start, "Unterminated regular expression"); }
    var ch = this$1.input.charAt(this$1.pos);
    if (lineBreak.test(ch)) { this$1.raise(start, "Unterminated regular expression"); }
    if (!escaped) {
      if (ch === "[") { inClass = true; }
      else if (ch === "]" && inClass) { inClass = false; }
      else if (ch === "/" && !inClass) { break }
      escaped = ch === "\\";
    } else { escaped = false; }
    ++this$1.pos;
  }
  var pattern = this.input.slice(start, this.pos);
  ++this.pos;
  var flagsStart = this.pos;
  var flags = this.readWord1();
  if (this.containsEsc) { this.unexpected(flagsStart); }

  var state = this.regexpState || (this.regexpState = new RegExpValidationState(this));
  state.reset(start, pattern, flags);
  this.validateRegExpFlags(state);
  this.validateRegExpPattern(state);

  var value = null;
  try {
    value = new RegExp(pattern, flags);
  } catch (e) {
  }

  return this.finishToken(types.regexp, {pattern: pattern, flags: flags, value: value})
};


pp$8.readInt = function(radix, len) {
  var this$1 = this;

  var start = this.pos, total = 0;
  for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
    var code = this$1.input.charCodeAt(this$1.pos), val = (void 0);
    if (code >= 97) { val = code - 97 + 10; } 
    else if (code >= 65) { val = code - 65 + 10; } 
    else if (code >= 48 && code <= 57) { val = code - 48; } 
    else { val = Infinity; }
    if (val >= radix) { break }
    ++this$1.pos;
    total = total * radix + val;
  }
  if (this.pos === start || len != null && this.pos - start !== len) { return null }

  return total
};

pp$8.readRadixNumber = function(radix) {
  this.pos += 2; 
  var val = this.readInt(radix);
  if (val == null) { this.raise(this.start + 2, "Expected number in radix " + radix); }
  if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
  return this.finishToken(types.num, val)
};


pp$8.readNumber = function(startsWithDot) {
  var start = this.pos;
  if (!startsWithDot && this.readInt(10) === null) { this.raise(start, "Invalid number"); }
  var octal = this.pos - start >= 2 && this.input.charCodeAt(start) === 48;
  if (octal && this.strict) { this.raise(start, "Invalid number"); }
  if (octal && /[89]/.test(this.input.slice(start, this.pos))) { octal = false; }
  var next = this.input.charCodeAt(this.pos);
  if (next === 46 && !octal) { 
    ++this.pos;
    this.readInt(10);
    next = this.input.charCodeAt(this.pos);
  }
  if ((next === 69 || next === 101) && !octal) { 
    next = this.input.charCodeAt(++this.pos);
    if (next === 43 || next === 45) { ++this.pos; } 
    if (this.readInt(10) === null) { this.raise(start, "Invalid number"); }
  }
  if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }

  var str = this.input.slice(start, this.pos);
  var val = octal ? parseInt(str, 8) : parseFloat(str);
  return this.finishToken(types.num, val)
};


pp$8.readCodePoint = function() {
  var ch = this.input.charCodeAt(this.pos), code;

  if (ch === 123) { 
    if (this.options.ecmaVersion < 6) { this.unexpected(); }
    var codePos = ++this.pos;
    code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
    ++this.pos;
    if (code > 0x10FFFF) { this.invalidStringToken(codePos, "Code point out of bounds"); }
  } else {
    code = this.readHexChar(4);
  }
  return code
};

function codePointToString(code) {
  if (code <= 0xFFFF) { return String.fromCharCode(code) }
  code -= 0x10000;
  return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)
}

pp$8.readString = function(quote) {
  var this$1 = this;

  var out = "", chunkStart = ++this.pos;
  for (;;) {
    if (this$1.pos >= this$1.input.length) { this$1.raise(this$1.start, "Unterminated string constant"); }
    var ch = this$1.input.charCodeAt(this$1.pos);
    if (ch === quote) { break }
    if (ch === 92) { 
      out += this$1.input.slice(chunkStart, this$1.pos);
      out += this$1.readEscapedChar(false);
      chunkStart = this$1.pos;
    } else {
      if (isNewLine(ch, this$1.options.ecmaVersion >= 10)) { this$1.raise(this$1.start, "Unterminated string constant"); }
      ++this$1.pos;
    }
  }
  out += this.input.slice(chunkStart, this.pos++);
  return this.finishToken(types.string, out)
};


var INVALID_TEMPLATE_ESCAPE_ERROR = {};

pp$8.tryReadTemplateToken = function() {
  this.inTemplateElement = true;
  try {
    this.readTmplToken();
  } catch (err) {
    if (err === INVALID_TEMPLATE_ESCAPE_ERROR) {
      this.readInvalidTemplateToken();
    } else {
      throw err
    }
  }

  this.inTemplateElement = false;
};

pp$8.invalidStringToken = function(position, message) {
  if (this.inTemplateElement && this.options.ecmaVersion >= 9) {
    throw INVALID_TEMPLATE_ESCAPE_ERROR
  } else {
    this.raise(position, message);
  }
};

pp$8.readTmplToken = function() {
  var this$1 = this;

  var out = "", chunkStart = this.pos;
  for (;;) {
    if (this$1.pos >= this$1.input.length) { this$1.raise(this$1.start, "Unterminated template"); }
    var ch = this$1.input.charCodeAt(this$1.pos);
    if (ch === 96 || ch === 36 && this$1.input.charCodeAt(this$1.pos + 1) === 123) { 
      if (this$1.pos === this$1.start && (this$1.type === types.template || this$1.type === types.invalidTemplate)) {
        if (ch === 36) {
          this$1.pos += 2;
          return this$1.finishToken(types.dollarBraceL)
        } else {
          ++this$1.pos;
          return this$1.finishToken(types.backQuote)
        }
      }
      out += this$1.input.slice(chunkStart, this$1.pos);
      return this$1.finishToken(types.template, out)
    }
    if (ch === 92) { 
      out += this$1.input.slice(chunkStart, this$1.pos);
      out += this$1.readEscapedChar(true);
      chunkStart = this$1.pos;
    } else if (isNewLine(ch)) {
      out += this$1.input.slice(chunkStart, this$1.pos);
      ++this$1.pos;
      switch (ch) {
      case 13:
        if (this$1.input.charCodeAt(this$1.pos) === 10) { ++this$1.pos; }
      case 10:
        out += "\n";
        break
      default:
        out += String.fromCharCode(ch);
        break
      }
      if (this$1.options.locations) {
        ++this$1.curLine;
        this$1.lineStart = this$1.pos;
      }
      chunkStart = this$1.pos;
    } else {
      ++this$1.pos;
    }
  }
};

pp$8.readInvalidTemplateToken = function() {
  var this$1 = this;

  for (; this.pos < this.input.length; this.pos++) {
    switch (this$1.input[this$1.pos]) {
    case "\\":
      ++this$1.pos;
      break

    case "$":
      if (this$1.input[this$1.pos + 1] !== "{") {
        break
      }

    case "`":
      return this$1.finishToken(types.invalidTemplate, this$1.input.slice(this$1.start, this$1.pos))

    }
  }
  this.raise(this.start, "Unterminated template");
};


pp$8.readEscapedChar = function(inTemplate) {
  var ch = this.input.charCodeAt(++this.pos);
  ++this.pos;
  switch (ch) {
  case 110: return "\n" 
  case 114: return "\r" 
  case 120: return String.fromCharCode(this.readHexChar(2)) 
  case 117: return codePointToString(this.readCodePoint()) 
  case 116: return "\t" 
  case 98: return "\b" 
  case 118: return "\u000b" 
  case 102: return "\f" 
  case 13: if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; } 
  case 10: 
    if (this.options.locations) { this.lineStart = this.pos; ++this.curLine; }
    return ""
  default:
    if (ch >= 48 && ch <= 55) {
      var octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0];
      var octal = parseInt(octalStr, 8);
      if (octal > 255) {
        octalStr = octalStr.slice(0, -1);
        octal = parseInt(octalStr, 8);
      }
      this.pos += octalStr.length - 1;
      ch = this.input.charCodeAt(this.pos);
      if ((octalStr !== "0" || ch === 56 || ch === 57) && (this.strict || inTemplate)) {
        this.invalidStringToken(
          this.pos - 1 - octalStr.length,
          inTemplate
            ? "Octal literal in template string"
            : "Octal literal in strict mode"
        );
      }
      return String.fromCharCode(octal)
    }
    return String.fromCharCode(ch)
  }
};


pp$8.readHexChar = function(len) {
  var codePos = this.pos;
  var n = this.readInt(16, len);
  if (n === null) { this.invalidStringToken(codePos, "Bad character escape sequence"); }
  return n
};


pp$8.readWord1 = function() {
  var this$1 = this;

  this.containsEsc = false;
  var word = "", first = true, chunkStart = this.pos;
  var astral = this.options.ecmaVersion >= 6;
  while (this.pos < this.input.length) {
    var ch = this$1.fullCharCodeAtPos();
    if (isIdentifierChar(ch, astral)) {
      this$1.pos += ch <= 0xffff ? 1 : 2;
    } else if (ch === 92) { 
      this$1.containsEsc = true;
      word += this$1.input.slice(chunkStart, this$1.pos);
      var escStart = this$1.pos;
      if (this$1.input.charCodeAt(++this$1.pos) !== 117) 
        { this$1.invalidStringToken(this$1.pos, "Expecting Unicode escape sequence \\uXXXX"); }
      ++this$1.pos;
      var esc = this$1.readCodePoint();
      if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
        { this$1.invalidStringToken(escStart, "Invalid Unicode escape"); }
      word += codePointToString(esc);
      chunkStart = this$1.pos;
    } else {
      break
    }
    first = false;
  }
  return word + this.input.slice(chunkStart, this.pos)
};


pp$8.readWord = function() {
  var word = this.readWord1();
  var type = types.name;
  if (this.keywords.test(word)) {
    if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword " + word); }
    type = keywords$1[word];
  }
  return this.finishToken(type, word)
};


var version = "5.7.3";


function parse(input, options) {
  return new Parser(options, input).parse()
}


function parseExpressionAt(input, pos, options) {
  var p = new Parser(options, input, pos);
  p.nextToken();
  return p.parseExpression()
}


function tokenizer(input, options) {
  return new Parser(options, input)
}

function addLooseExports(parse, Parser$$1, plugins$$1) {
  exports.parse_dammit = parse; 
  exports.LooseParser = Parser$$1;
  exports.pluginsLoose = plugins$$1;
}

exports.version = version;
exports.parse = parse;
exports.parseExpressionAt = parseExpressionAt;
exports.tokenizer = tokenizer;
exports.addLooseExports = addLooseExports;
exports.Parser = Parser;
exports.plugins = plugins;
exports.defaultOptions = defaultOptions;
exports.Position = Position;
exports.SourceLocation = SourceLocation;
exports.getLineInfo = getLineInfo;
exports.Node = Node;
exports.TokenType = TokenType;
exports.tokTypes = types;
exports.keywordTypes = keywords$1;
exports.TokContext = TokContext;
exports.tokContexts = types$1;
exports.isIdentifierChar = isIdentifierChar;
exports.isIdentifierStart = isIdentifierStart;
exports.Token = Token;
exports.isNewLine = isNewLine;
exports.lineBreak = lineBreak;
exports.lineBreakG = lineBreakG;
exports.nonASCIIwhitespace = nonASCIIwhitespace;

Object.defineProperty(exports, '__esModule', { value: true });

})));

},{}],3:[function(require,module,exports){

},{}],4:[function(require,module,exports){
'use strict';

function mock1D() {
  const row = [];
  for (let x = 0; x < this.output.x; x++) {
    this.thread.x = x;
    this.thread.y = 0;
    this.thread.z = 0;
    row.push(this._fn.apply(this, arguments));
  }
  return row;
}

function mock2D() {
  const matrix = [];
  for (let y = 0; y < this.output.y; y++) {
    const row = [];
    for (let x = 0; x < this.output.x; x++) {
      this.thread.x = x;
      this.thread.y = y;
      this.thread.z = 0;
      row.push(this._fn.apply(this, arguments));
    }
    matrix.push(row);
  }
  return matrix;
}

function mock3D() {
  const cube = [];
  for (let z = 0; z < this.output.z; z++) {
    const matrix = [];
    for (let y = 0; y < this.output.y; y++) {
      const row = [];
      for (let x = 0; x < this.output.x; x++) {
        this.thread.x = x;
        this.thread.y = y;
        this.thread.z = z;
        row.push(this._fn.apply(this, arguments));
      }
      matrix.push(row);
    }
    cube.push(matrix);
  }
  return cube;
}

module.exports = function gpuMock(fn, options) {
  let contextOutput = null;
  if (options.output.length) {
    if (options.output.length === 3) {
      contextOutput = { x: options.output[0], y: options.output[1], z: options.output[2] };
    } else if (options.output.length === 2) {
      contextOutput = { x: options.output[0], y: options.output[1] };
    } else {
      contextOutput = { x: options.output[0] };
    }
  } else {
    contextOutput = options.output;
  }

  const context = {
    _fn: fn,
    constants: options.constants,
    output: contextOutput,
    thread: {
      x: 0,
      y: 0,
      z: 0
    }
  };

  if (contextOutput.z) {
    return mock3D.bind(context);
  } else if (contextOutput.y) {
    return mock2D.bind(context);
  } else {
    return mock1D.bind(context);
  }
};

},{}],5:[function(require,module,exports){
const { utils } = require('./utils');

function alias(name, source) {
  const fnString = source.toString();
  return new Function(`return function ${ name } (${ utils.getArgumentNamesFromString(fnString).join(', ') }) {
  ${ utils.getFunctionBodyFromString(fnString) }
}`)();
}

module.exports = {
  alias
};
},{"./utils":70}],6:[function(require,module,exports){
const { FunctionNode } = require('../function-node');

class CPUFunctionNode extends FunctionNode {
  astFunctionExpression(ast, retArr) {

    if (!this.isRootKernel) {
      retArr.push('function');
      retArr.push(' ');
      retArr.push(this.name);
      retArr.push('(');

      for (let i = 0; i < this.argumentNames.length; ++i) {
        const argumentName = this.argumentNames[i];

        if (i > 0) {
          retArr.push(', ');
        }
        retArr.push('user_');
        retArr.push(argumentName);
      }

      retArr.push(') {\n');
    }

    for (let i = 0; i < ast.body.body.length; ++i) {
      this.astGeneric(ast.body.body[i], retArr);
      retArr.push('\n');
    }

    if (!this.isRootKernel) {
      retArr.push('}\n');
    }
    return retArr;
  }

  astReturnStatement(ast, retArr) {
    if (this.isRootKernel) {
      retArr.push(this.leadingReturnStatement);
      this.astGeneric(ast.argument, retArr);
      retArr.push(';\n');
      retArr.push(this.followingReturnStatement);
      retArr.push('continue;\n');
    } else if (this.isSubKernel) {
      retArr.push(`subKernelResult_${ this.name } = `);
      this.astGeneric(ast.argument, retArr);
      retArr.push(';');
      retArr.push(`return subKernelResult_${ this.name };`);
    } else {
      retArr.push('return ');
      this.astGeneric(ast.argument, retArr);
      retArr.push(';');
    }
    return retArr;
  }

  astLiteral(ast, retArr) {

    if (isNaN(ast.value)) {
      throw this.astErrorOutput(
        'Non-numeric literal not supported : ' + ast.value,
        ast
      );
    }

    retArr.push(ast.value);

    return retArr;
  }

  astBinaryExpression(ast, retArr) {
    retArr.push('(');
    this.astGeneric(ast.left, retArr);
    retArr.push(ast.operator);
    this.astGeneric(ast.right, retArr);
    retArr.push(')');
    return retArr;
  }

  astIdentifierExpression(idtNode, retArr) {
    if (idtNode.type !== 'Identifier') {
      throw this.astErrorOutput(
        'IdentifierExpression - not an Identifier',
        idtNode
      );
    }

    switch (idtNode.name) {
      case 'Infinity':
        retArr.push('Infinity');
        break;
      default:
        if (this.constants && this.constants.hasOwnProperty(idtNode.name)) {
          retArr.push('constants_' + idtNode.name);
        } else {
          const name = this.getKernelArgumentName(idtNode.name);
          if (name) {
            retArr.push('user_' + name);
          } else {
            retArr.push('user_' + idtNode.name);
          }
        }
    }

    return retArr;
  }

  astForStatement(forNode, retArr) {
    if (forNode.type !== 'ForStatement') {
      throw this.astErrorOutput('Invalid for statement', forNode);
    }

    const initArr = [];
    const testArr = [];
    const updateArr = [];
    const bodyArr = [];
    let isSafe = null;

    if (forNode.init) {
      this.pushState('in-for-loop-init');
      this.astGeneric(forNode.init, initArr);
      for (let i = 0; i < initArr.length; i++) {
        if (initArr[i].includes && initArr[i].includes(',')) {
          isSafe = false;
        }
      }
      this.popState('in-for-loop-init');
    } else {
      isSafe = false;
    }

    if (forNode.test) {
      this.astGeneric(forNode.test, testArr);
    } else {
      isSafe = false;
    }

    if (forNode.update) {
      this.astGeneric(forNode.update, updateArr);
    } else {
      isSafe = false;
    }

    if (forNode.body) {
      this.pushState('loop-body');
      this.astGeneric(forNode.body, bodyArr);
      this.popState('loop-body');
    }

    if (isSafe === null) {
      isSafe = this.isSafe(forNode.init) && this.isSafe(forNode.test);
    }

    if (isSafe) {
      retArr.push(`for (${initArr.join('')};${testArr.join('')};${updateArr.join('')}){\n`);
      retArr.push(bodyArr.join(''));
      retArr.push('}\n');
    } else {
      const iVariableName = this.getInternalVariableName('safeI');
      if (initArr.length > 0) {
        retArr.push(initArr.join(''), ';\n');
      }
      retArr.push(`for (let ${iVariableName}=0;${iVariableName}<LOOP_MAX;${iVariableName}++){\n`);
      if (testArr.length > 0) {
        retArr.push(`if (!${testArr.join('')}) break;\n`);
      }
      retArr.push(bodyArr.join(''));
      retArr.push(`\n${updateArr.join('')};`);
      retArr.push('}\n');
    }
    return retArr;
  }

  astWhileStatement(whileNode, retArr) {
    if (whileNode.type !== 'WhileStatement') {
      throw this.astErrorOutput(
        'Invalid while statement',
        whileNode
      );
    }

    retArr.push('for (let i = 0; i < LOOP_MAX; i++) {');
    retArr.push('if (');
    this.astGeneric(whileNode.test, retArr);
    retArr.push(') {\n');
    this.astGeneric(whileNode.body, retArr);
    retArr.push('} else {\n');
    retArr.push('break;\n');
    retArr.push('}\n');
    retArr.push('}\n');

    return retArr;
  }

  astDoWhileStatement(doWhileNode, retArr) {
    if (doWhileNode.type !== 'DoWhileStatement') {
      throw this.astErrorOutput(
        'Invalid while statement',
        doWhileNode
      );
    }

    retArr.push('for (let i = 0; i < LOOP_MAX; i++) {');
    this.astGeneric(doWhileNode.body, retArr);
    retArr.push('if (!');
    this.astGeneric(doWhileNode.test, retArr);
    retArr.push(') {\n');
    retArr.push('break;\n');
    retArr.push('}\n');
    retArr.push('}\n');

    return retArr;

  }

  astAssignmentExpression(assNode, retArr) {
    this.astGeneric(assNode.left, retArr);
    retArr.push(assNode.operator);
    this.astGeneric(assNode.right, retArr);
    return retArr;
  }

  astBlockStatement(bNode, retArr) {
    if (this.isState('loop-body')) {
      this.pushState('block-body'); 
      for (let i = 0; i < bNode.body.length; i++) {
        this.astGeneric(bNode.body[i], retArr);
      }
      this.popState('block-body');
    } else {
      retArr.push('{\n');
      for (let i = 0; i < bNode.body.length; i++) {
        this.astGeneric(bNode.body[i], retArr);
      }
      retArr.push('}\n');
    }
    return retArr;
  }

  astVariableDeclaration(varDecNode, retArr) {
    if (varDecNode.kind === 'var') {
      this.varWarn();
    }
    retArr.push(`${varDecNode.kind} `);
    const firstDeclaration = varDecNode.declarations[0];
    const type = this.getType(firstDeclaration.init);
    for (let i = 0; i < varDecNode.declarations.length; i++) {
      this.declarations[varDecNode.declarations[i].id.name] = {
        type: type === 'LiteralInteger' ? 'Number' : type,
        dependencies: {
          constants: [],
          arguments: []
        },
        isUnsafe: false
      };
      if (i > 0) {
        retArr.push(',');
      }
      this.astGeneric(varDecNode.declarations[i], retArr);
    }
    if (!this.isState('in-for-loop-init')) {
      retArr.push(';');
    }
    return retArr;
  }

  astIfStatement(ifNode, retArr) {
    retArr.push('if (');
    this.astGeneric(ifNode.test, retArr);
    retArr.push(')');
    if (ifNode.consequent.type === 'BlockStatement') {
      this.astGeneric(ifNode.consequent, retArr);
    } else {
      retArr.push(' {\n');
      this.astGeneric(ifNode.consequent, retArr);
      retArr.push('\n}\n');
    }

    if (ifNode.alternate) {
      retArr.push('else ');
      if (ifNode.alternate.type === 'BlockStatement') {
        this.astGeneric(ifNode.alternate, retArr);
      } else {
        retArr.push(' {\n');
        this.astGeneric(ifNode.alternate, retArr);
        retArr.push('\n}\n');
      }
    }
    return retArr;

  }

  astThisExpression(tNode, retArr) {
    retArr.push('_this');
    return retArr;
  }

  astMemberExpression(mNode, retArr) {
    const {
      signature,
      type,
      property,
      xProperty,
      yProperty,
      zProperty,
      name,
      origin
    } = this.getMemberExpressionDetails(mNode);
    switch (signature) {
      case 'this.thread.value':
        retArr.push(`_this.thread.${ name }`);
        return retArr;
      case 'this.output.value':
        switch (name) {
          case 'x':
            retArr.push('outputX');
            break;
          case 'y':
            retArr.push('outputY');
            break;
          case 'z':
            retArr.push('outputZ');
            break;
          default:
            throw this.astErrorOutput('Unexpected expression', mNode);
        }
        return retArr;
      case 'value':
        throw this.astErrorOutput('Unexpected expression', mNode);
      case 'value[]':
      case 'value[][]':
      case 'value[][][]':
      case 'value.value':
        if (origin === 'Math') {
          retArr.push(Math[name]);
          return retArr;
        }
        switch (property) {
          case 'r':
            retArr.push(`user_${ name }[0]`);
            return retArr;
          case 'g':
            retArr.push(`user_${ name }[1]`);
            return retArr;
          case 'b':
            retArr.push(`user_${ name }[2]`);
            return retArr;
          case 'a':
            retArr.push(`user_${ name }[3]`);
            return retArr;
        }
        break;
      case 'this.constants.value':
      case 'this.constants.value[]':
      case 'this.constants.value[][]':
      case 'this.constants.value[][][]':
        break;
      case 'fn()[]':
        this.astGeneric(mNode.object, retArr);
        retArr.push('[');
        this.astGeneric(mNode.property, retArr);
        retArr.push(']');
        return retArr;
      default:
        throw this.astErrorOutput('Unexpected expression', mNode);
    }

    switch (type) {
      case 'Number':
      case 'Integer':
      case 'Float':
      case 'Boolean':
        retArr.push(`${ origin }_${ name}`);
        return retArr;
    }

    const synonymName = this.getKernelArgumentName(name);
    const markupName = `${origin}_${synonymName || name}`;

    switch (type) {
      case 'Array(2)':
      case 'Array(3)':
      case 'Array(4)':
      case 'HTMLImageArray':
      case 'ArrayTexture(1)':
      case 'ArrayTexture(2)':
      case 'ArrayTexture(3)':
      case 'ArrayTexture(4)':
      case 'HTMLImage':
      default:
        const isInput = this.isInput(synonymName || name);
        retArr.push(`${ markupName }`);
        if (zProperty && yProperty) {
          if (isInput) {
            const size = this.argumentSizes[this.argumentNames.indexOf(name)];
            retArr.push('[(');
            this.astGeneric(zProperty, retArr);
            retArr.push(`*${ size[1] * size[0]})+(`);
            this.astGeneric(yProperty, retArr);
            retArr.push(`*${ size[0] })+`);
            this.astGeneric(xProperty, retArr);
            retArr.push(']');
          } else {
            retArr.push('[');
            this.astGeneric(zProperty, retArr);
            retArr.push(']');
            retArr.push('[');
            this.astGeneric(yProperty, retArr);
            retArr.push(']');
            retArr.push('[');
            this.astGeneric(xProperty, retArr);
            retArr.push(']');
          }
        } else if (yProperty) {
          if (isInput) {
            const size = this.argumentSizes[this.argumentNames.indexOf(name)];
            retArr.push('[(');
            this.astGeneric(yProperty, retArr);
            retArr.push(`*${ size[0] })+`);
            this.astGeneric(xProperty, retArr);
            retArr.push(']');
          } else {
            retArr.push('[');
            this.astGeneric(yProperty, retArr);
            retArr.push(']');
            retArr.push('[');
            this.astGeneric(xProperty, retArr);
            retArr.push(']');
          }
        } else {
          retArr.push('[');
          this.astGeneric(xProperty, retArr);
          retArr.push(']');
        }
    }
    return retArr;
  }

  astCallExpression(ast, retArr) {
    if (ast.callee) {
      let funcName = this.astMemberExpressionUnroll(ast.callee);

      if (this.calledFunctions.indexOf(funcName) < 0) {
        this.calledFunctions.push(funcName);
      }
      if (!this.calledFunctionsArguments[funcName]) {
        this.calledFunctionsArguments[funcName] = [];
      }

      const functionArguments = [];
      this.calledFunctionsArguments[funcName].push(functionArguments);

      retArr.push(funcName);

      retArr.push('(');

      for (let i = 0; i < ast.arguments.length; ++i) {
        const argument = ast.arguments[i];
        if (i > 0) {
          retArr.push(', ');
        }
        this.astGeneric(argument, retArr);
        const argumentType = this.getType(argument);
        if (argumentType) {
          functionArguments.push({
            name: argument.name || null,
            type: argumentType
          });
        } else {
          functionArguments.push(null);
        }
      }

      retArr.push(')');

      return retArr;
    }

    throw this.astErrorOutput(
      'Unknown CallExpression',
      ast
    );
  }

  astArrayExpression(arrNode, retArr) {
    const arrLen = arrNode.elements.length;

    retArr.push('new Float32Array([');
    for (let i = 0; i < arrLen; ++i) {
      if (i > 0) {
        retArr.push(', ');
      }
      const subNode = arrNode.elements[i];
      this.astGeneric(subNode, retArr)
    }
    retArr.push('])');

    return retArr;
  }

  astDebuggerStatement(arrNode, retArr) {
    retArr.push('debugger;');
    return retArr;
  }
}

module.exports = {
  CPUFunctionNode
};
},{"../function-node":10}],7:[function(require,module,exports){
const { utils } = require('../../utils');
const { kernelRunShortcut } = require('../../kernel-run-shortcut');

function removeFnNoise(fn) {
  if (/^function /.test(fn)) {
    fn = fn.substring(9);
  }
  return fn.replace(/[_]typeof/g, 'typeof');
}

function removeNoise(str) {
  return str
    .replace(/^[A-Za-z]+/, 'function')
    .replace(/[_]typeof/g, 'typeof');
}

function cpuKernelString(cpuKernel, name) {
  return `() => {
    ${ kernelRunShortcut.toString() };
    const utils = {
      allPropertiesOf: ${ removeNoise(utils.allPropertiesOf.toString()) },
      clone: ${ removeNoise(utils.clone.toString()) },
      isArray: ${ removeNoise(utils.isArray.toString()) },
    };
    let Input = function() {};
    class ${ name || 'Kernel' } {
      constructor() {        
        this.canvas = null;
        this.context = null;
        this.built = false;
        this.program = null;
        this.argumentNames = ${ JSON.stringify(cpuKernel.argumentNames) };
        this.argumentTypes = ${ JSON.stringify(cpuKernel.argumentTypes) };
        this.argumentSizes = ${ JSON.stringify(cpuKernel.argumentSizes) };
        this.output = ${ JSON.stringify(cpuKernel.output) };
        this._kernelString = \`${ cpuKernel._kernelString }\`;
        this.output = ${ JSON.stringify(cpuKernel.output) };
        this.run = function() {
          this.run = null;
          this.build(arguments);
          return this.run.apply(this, arguments);
        }.bind(this);
        this.thread = {
          x: 0,
          y: 0,
          z: 0
        };
      }
      setCanvas(canvas) { this.canvas = canvas; return this; }
      setContext(context) { this.context = context; return this; }
      setInput(Type) { Input = Type; }
      ${ removeFnNoise(cpuKernel.build.toString()) }
      setupArguments() {}
      ${ removeFnNoise(cpuKernel.setupConstants.toString()) }
      translateSource() {}
      pickRenderStrategy() {}
      run () { ${ cpuKernel.kernelString } }
      getKernelString() { return this._kernelString; }
      ${ removeFnNoise(cpuKernel.validateSettings.toString()) }
      ${ removeFnNoise(cpuKernel.checkOutput.toString()) }
    };
    return kernelRunShortcut(new Kernel());
  };`;
}

module.exports = {
  cpuKernelString
};
},{"../../kernel-run-shortcut":67,"../../utils":70}],8:[function(require,module,exports){
const { Kernel } = require('../kernel');
const { FunctionBuilder } = require('../function-builder');
const { CPUFunctionNode } = require('./function-node');
const { utils } = require('../../utils');
const { cpuKernelString } = require('./kernel-string');

class CPUKernel extends Kernel {
  static getFeatures() {
    return this.features;
  }
  static get features() {
    return Object.freeze({
      kernelMap: true,
      isIntegerDivisionAccurate: true
    });
  }
  static get isSupported() {
    return true;
  }
  static isContextMatch(context) {
    return false;
  }
  static get mode() {
    return 'cpu';
  }

  static nativeFunctionArguments() {
    return null;
  }

  static nativeFunctionReturnType() {
    return null;
  }

  static combineKernels(combinedKernel) {
    return combinedKernel;
  }

  constructor(source, settings) {
    super(source, settings);
    this.mergeSettings(source.settings || settings);

    this._imageData = null;
    this._colorData = null;
    this._kernelString = null;
    this.thread = {
      x: 0,
      y: 0,
      z: 0
    };
    this.translatedSources = null;
  }

  initCanvas() {
    if (typeof document !== 'undefined') {
      return document.createElement('canvas');
    } else if (typeof OffscreenCanvas !== 'undefined') {
      return new OffscreenCanvas(0, 0);
    }
  }

  initContext() {
    if (!this.canvas) return null;
    return this.canvas.getContext('2d');
  }

  initPlugins(settings) {
    return [];
  }

  validateSettings() {
    if (!this.output || this.output.length === 0) {
      if (arguments.length !== 1) {
        throw 'Auto dimensions only supported for kernels with only one input';
      }

      const argType = utils.getVariableType(arguments[0], this.strictIntegers);
      if (argType === 'Array') {
        this.output = utils.getDimensions(argType);
      } else if (argType === 'NumberTexture' || argType === 'ArrayTexture(4)') {
        this.output = arguments[0].output;
      } else {
        throw 'Auto dimensions not supported for input type: ' + argType;
      }
    }

    if (this.graphical) {
      if (this.output.length !== 2) {
        throw new Error('Output must have 2 dimensions on graphical mode');
      }
    }

    this.checkOutput();
  }

  translateSource() {
    this.leadingReturnStatement = this.output.length > 1 ? 'resultX[x] = ' : 'result[x] = ';
    if (this.subKernels) {
      const followingReturnStatement = []
      for (let i = 0; i < this.subKernels.length; i++) {
        const {
          name
        } = this.subKernels[i];
        followingReturnStatement.push(this.output.length > 1 ? `resultX_${ name }[x] = subKernelResult_${ name };\n` : `result_${ name }[x] = subKernelResult_${ name };\n`);
      }
      this.followingReturnStatement = followingReturnStatement.join('');
    }
    const functionBuilder = FunctionBuilder.fromKernel(this, CPUFunctionNode);
    this.translatedSources = functionBuilder.getPrototypes('kernel');
    if (!this.graphical && !this.returnType) {
      this.returnType = functionBuilder.getKernelResultType();
    }
  }

  build() {
    this.setupConstants();
    this.setupArguments(arguments);
    this.validateSettings();
    this.translateSource();

    if (this.graphical) {
      const {
        canvas,
        output
      } = this;
      if (!canvas) {
        throw new Error('no canvas available for using graphical output');
      }
      const width = output[0];
      const height = output[1] || 1;
      canvas.width = width;
      canvas.height = height;
      this._imageData = this.context.createImageData(width, height);
      this._colorData = new Uint8ClampedArray(width * height * 4);
    }

    const kernelString = this.getKernelString();
    this.kernelString = kernelString;

    if (this.debug) {
      console.log('Function output:');
      console.log(kernelString);
    }

    try {
      this.run = new Function([], kernelString).bind(this)();
    } catch (e) {
      console.error('An error occurred compiling the javascript: ', e);
    }
  }

  color(r, g, b, a) {
    if (typeof a === 'undefined') {
      a = 1;
    }

    r = Math.floor(r * 255);
    g = Math.floor(g * 255);
    b = Math.floor(b * 255);
    a = Math.floor(a * 255);

    const width = this.output[0];
    const height = this.output[1];

    const x = this.thread.x;
    const y = height - this.thread.y - 1;

    const index = x + y * width;

    this._colorData[index * 4 + 0] = r;
    this._colorData[index * 4 + 1] = g;
    this._colorData[index * 4 + 2] = b;
    this._colorData[index * 4 + 3] = a;
  }

  getKernelString() {
    if (this._kernelString !== null) return this._kernelString;

    let kernelThreadString = null;
    let {
      translatedSources
    } = this;
    if (translatedSources.length > 1) {
      translatedSources = translatedSources.filter(fn => {
        if (/^function/.test(fn)) return fn;
        kernelThreadString = fn;
        return false;
      })
    } else {
      kernelThreadString = translatedSources.shift();
    }
    const kernelString = this._kernelString = `  const LOOP_MAX = ${ this._getLoopMaxString() }
  const constants = this.constants;
  const _this = this;
  return (${ this.argumentNames.map(argumentName => 'user_' + argumentName).join(', ') }) => {
    ${ this._processConstants() }
    ${ this._processArguments() }
    ${ this.graphical ? this._graphicalKernelBody(kernelThreadString) : this._resultKernelBody(kernelThreadString) }
    ${ translatedSources.length > 0 ? translatedSources.join('\n') : '' }
  };`;
    return kernelString;
  }

  toString() {
    return cpuKernelString(this);
  }

  _getLoopMaxString() {
    return (
      this.loopMaxIterations ?
      ` ${ parseInt(this.loopMaxIterations) };` :
      ' 1000;'
    );
  }

  _processConstants() {
    if (!this.constants) return '';

    const result = [];
    for (let p in this.constants) {
      const type = this.constantTypes[p];
      switch (type) {
        case 'HTMLImage':
          result.push(`    const constants_${p} = this._imageTo2DArray(this.constants.${p});\n`);
          break;
        case 'HTMLImageArray':
          result.push(`    const constants_${p} = this._imageTo3DArray(this.constants.${p});\n`);
          break;
        case 'Input':
          result.push(`    const constants_${p} = this.constants.${p}.value;\n`);
          break;
        default:
          result.push(`    const constants_${p} = this.constants.${p};\n`);
      }
    }
    return result.join('');
  }

  _processArguments() {
    const result = [];
    for (let i = 0; i < this.argumentTypes.length; i++) {
      switch (this.argumentTypes[i]) {
        case 'HTMLImage':
          result.push(`    user_${this.argumentNames[i]} = this._imageTo2DArray(user_${this.argumentNames[i]});\n`);
          break;
        case 'HTMLImageArray':
          result.push(`    user_${this.argumentNames[i]} = this._imageTo3DArray(user_${this.argumentNames[i]});\n`);
          break;
        case 'Input':
          result.push(`    user_${this.argumentNames[i]} = user_${this.argumentNames[i]}.value;\n`);
          break;
      }
    }
    return result.join('');
  }

  _imageTo2DArray(image) {
    const canvas = this.canvas;
    if (canvas.width < image.width) {
      canvas.width = image.width;
    }
    if (canvas.height < image.height) {
      canvas.height = image.height;
    }
    const ctx = this.context;
    ctx.drawImage(image, 0, 0, image.width, image.height);
    const pixelsData = ctx.getImageData(0, 0, image.width, image.height).data;
    const imageArray = new Array(image.height);
    let index = 0;
    for (let y = image.height - 1; y >= 0; y--) {
      const row = imageArray[y] = new Array(image.width);
      for (let x = 0; x < image.width; x++) {
        const pixel = new Float32Array(4);
        pixel[0] = pixelsData[index++] / 255; 
        pixel[1] = pixelsData[index++] / 255; 
        pixel[2] = pixelsData[index++] / 255; 
        pixel[3] = pixelsData[index++] / 255; 
        row[x] = pixel;
      }
    }
    return imageArray;
  }

  getPixels(flip) {
    const [width, height] = this.output;
    return flip ? utils.flipPixels(this._imageData.data, width, height) : this._imageData.data.slice(0);
  }

  _imageTo3DArray(images) {
    const imagesArray = new Array(images.length);
    for (let i = 0; i < images.length; i++) {
      imagesArray[i] = this._imageTo2DArray(images[i]);
    }
    return imagesArray;
  }

  _resultKernelBody(kernelString) {
    switch (this.output.length) {
      case 1:
        return this._resultKernel1DLoop(kernelString) + this._kernelOutput();
      case 2:
        return this._resultKernel2DLoop(kernelString) + this._kernelOutput();
      case 3:
        return this._resultKernel3DLoop(kernelString) + this._kernelOutput();
      default:
        throw new Error('unsupported size kernel');
    }
  }

  _graphicalKernelBody(kernelThreadString) {
    switch (this.output.length) {
      case 2:
        return this._graphicalKernel2DLoop(kernelThreadString) + this._graphicalOutput();
      default:
        throw new Error('unsupported size kernel');
    }
  }

  _graphicalOutput() {
    return `
    this._imageData.data.set(this._colorData);
    this.context.putImageData(this._imageData, 0, 0);
    return;`
  }

  _getKernelResultTypeConstructorString() {
    switch (this.returnType) {
      case 'LiteralInteger':
      case 'Number':
      case 'Integer':
      case 'Float':
        return 'Float32Array';
      case 'Array(2)':
      case 'Array(3)':
      case 'Array(4)':
        return 'Array';
      default:
        if (this.graphical) {
          return 'Float32Array';
        }
        throw new Error(`unhandled returnType ${ this.returnType }`);
    }
  }

  _resultKernel1DLoop(kernelString) {
    const {
      output
    } = this;
    const constructorString = this._getKernelResultTypeConstructorString();
    return `  const outputX = _this.output[0];
    const result = new ${constructorString}(outputX);
    ${ this._mapSubKernels(subKernel => `const result_${ subKernel.name } = new ${constructorString}(outputX);\n`).join('    ') }
    ${ this._mapSubKernels(subKernel => `let subKernelResult_${ subKernel.name };\n`).join('    ') }
    for (let x = 0; x < outputX; x++) {
      this.thread.x = x;
      this.thread.y = 0;
      this.thread.z = 0;
      ${ kernelString }
    }`;
  }

  _resultKernel2DLoop(kernelString) {
    const {
      output
    } = this;
    const constructorString = this._getKernelResultTypeConstructorString();
    return `  const outputX = _this.output[0];
    const outputY = _this.output[1];
    const result = new Array(outputY);
    ${ this._mapSubKernels(subKernel => `const result_${ subKernel.name } = new Array(outputY);\n`).join('    ') }
    ${ this._mapSubKernels(subKernel => `let subKernelResult_${ subKernel.name };\n`).join('    ') }
    for (let y = 0; y < outputY; y++) {
      this.thread.z = 0;
      this.thread.y = y;
      const resultX = result[y] = new ${constructorString}(outputX);
      ${ this._mapSubKernels(subKernel => `const resultX_${ subKernel.name } = result_${subKernel.name}[y] = new ${constructorString}(outputX);\n`).join('') }
      for (let x = 0; x < outputX; x++) {
        this.thread.x = x;
        ${ kernelString }
      }
    }`;
  }

  _graphicalKernel2DLoop(kernelString) {
    const {
      output
    } = this;
    const constructorString = this._getKernelResultTypeConstructorString();
    return `  const outputX = _this.output[0];
    const outputY = _this.output[1];
    ${ this._mapSubKernels(subKernel => `const result_${ subKernel.name } = new Array(outputY);\n`).join('    ') }
    ${ this._mapSubKernels(subKernel => `let subKernelResult_${ subKernel.name };\n`).join('    ') }
    for (let y = 0; y < outputY; y++) {
      this.thread.z = 0;
      this.thread.y = y;
      ${ this._mapSubKernels(subKernel => `const resultX_${ subKernel.name } = result_${subKernel.name}[y] = new ${constructorString}(outputX);\n`).join('') }
      for (let x = 0; x < outputX; x++) {
        this.thread.x = x;
        ${ kernelString }
      }
    }`;
  }

  _resultKernel3DLoop(kernelString) {
    const {
      output
    } = this;
    const constructorString = this._getKernelResultTypeConstructorString();
    return `  const outputX = _this.output[0];
    const outputY = _this.output[1];
    const outputZ = _this.output[2];
    const result = new Array(outputZ);
    ${ this._mapSubKernels(subKernel => `const result_${ subKernel.name } = new Array(outputZ);\n`).join('    ') }
    ${ this._mapSubKernels(subKernel => `let subKernelResult_${ subKernel.name };\n`).join('    ') }
    for (let z = 0; z < outputZ; z++) {
      this.thread.z = z;
      const resultY = result[z] = new Array(outputY);
      ${ this._mapSubKernels(subKernel => `const resultY_${ subKernel.name } = result_${subKernel.name}[z] = new Array(outputY);\n`).join('      ') }
      for (let y = 0; y < outputY; y++) {
        this.thread.y = y;
        const resultX = resultY[y] = new ${constructorString}(outputX);
        ${ this._mapSubKernels(subKernel => `const resultX_${ subKernel.name } = resultY_${subKernel.name}[y] = new ${constructorString}(outputX);\n`).join('        ') }
        for (let x = 0; x < outputX; x++) {
          this.thread.x = x;
          ${ kernelString }
        }
      }
    }`;
  }

  _kernelOutput() {
    if (!this.subKernels) {
      return '\n    return result;';
    }
    return `\n    return {
      result: result,
      ${ this.subKernels.map(subKernel => `${ subKernel.property }: result_${ subKernel.name }`).join(',\n      ') }
    };`;
  }

  _mapSubKernels(fn) {
    return this.subKernels === null ? [''] :
      this.subKernels.map(fn);
  }



  destroy(removeCanvasReference) {
    if (removeCanvasReference) {
      delete this.canvas;
    }
  }

  static destroyContext(context) {}

  toJSON() {
    const json = super.toJSON();
    json.functionNodes = FunctionBuilder.fromKernel(this, CPUFunctionNode).toJSON();
    return json;
  }

  setOutput(output) {
    super.setOutput(output);
    const [width, height] = this.output;
    if (this.graphical) {
      this._imageData = this.context.createImageData(width, height);
      this._colorData = new Uint8ClampedArray(width * height * 4);
    }
  }
}

module.exports = {
  CPUKernel
};
},{"../../utils":70,"../function-builder":9,"../kernel":15,"./function-node":6,"./kernel-string":7}],9:[function(require,module,exports){
class FunctionBuilder {
  static fromKernel(kernel, FunctionNode, extraNodeOptions) {
    const {
      kernelArguments,
      argumentNames,
      argumentTypes,
      argumentSizes,
      argumentBitRatios,
      constants,
      constantTypes,
      constantBitRatios,
      debug,
      loopMaxIterations,
      nativeFunctions,
      output,
      optimizeFloatMemory,
      precision,
      plugins,
      source,
      subKernels,
      functions,
      leadingReturnStatement,
      followingReturnStatement,
      dynamicOutput,
    } = kernel;

    const lookupReturnType = (functionName, ast, requestingNode) => {
      return functionBuilder.lookupReturnType(functionName, ast, requestingNode);
    };

    const lookupArgumentType = (argumentName, requestingNode) => {
      return functionBuilder.lookupArgumentType(argumentName, requestingNode);
    };

    const lookupFunctionArgumentTypes = (functionName) => {
      return functionBuilder.lookupFunctionArgumentTypes(functionName);
    };

    const lookupFunctionArgumentName = (functionName, argumentIndex) => {
      return functionBuilder.lookupFunctionArgumentName(functionName, argumentIndex);
    };

    const lookupFunctionArgumentBitRatio = (functionName, argumentName) => {
      return functionBuilder.lookupFunctionArgumentBitRatio(functionName, argumentName);
    };

    const triggerImplyArgumentType = (functionName, i, argumentType, requestingNode) => {
      functionBuilder.assignArgumentType(functionName, i, argumentType, requestingNode);
    };

    const triggerTrackArgumentSynonym = (functionName, argumentName, calleeFunctionName, argumentIndex) => {
      functionBuilder.trackArgumentSynonym(functionName, argumentName, calleeFunctionName, argumentIndex);
    };

    const lookupArgumentSynonym = (originFunctionName, functionName, argumentName) => {
      return functionBuilder.lookupArgumentSynonym(originFunctionName, functionName, argumentName);
    };

    const onFunctionCall = (functionName, calleeFunctionName) => {
      functionBuilder.trackFunctionCall(functionName, calleeFunctionName);
    };

    const onNestedFunction = (fnString, returnType) => {
      functionBuilder.addFunctionNode(new FunctionNode(fnString, Object.assign({}, nodeOptions, {
        returnType: returnType || 'Number', 
        lookupReturnType,
        lookupArgumentType,
        lookupFunctionArgumentTypes,
        lookupFunctionArgumentName,
        lookupFunctionArgumentBitRatio,
        triggerImplyArgumentType,
        triggerTrackArgumentSynonym,
        lookupArgumentSynonym,
        onFunctionCall
      })));
    };

    const nodeOptions = Object.assign({
      isRootKernel: false,
      onNestedFunction,
      lookupReturnType,
      lookupArgumentType,
      lookupFunctionArgumentTypes,
      lookupFunctionArgumentName,
      lookupFunctionArgumentBitRatio,
      triggerImplyArgumentType,
      triggerTrackArgumentSynonym,
      lookupArgumentSynonym,
      onFunctionCall,
      optimizeFloatMemory,
      precision,
      constants,
      constantTypes,
      constantBitRatios,
      debug,
      loopMaxIterations,
      output,
      plugins,
      dynamicOutput,
    }, extraNodeOptions || {});

    const rootNodeOptions = Object.assign({}, nodeOptions, {
      isRootKernel: true,
      name: 'kernel',
      argumentNames,
      argumentTypes,
      argumentSizes,
      argumentBitRatios,
      leadingReturnStatement,
      followingReturnStatement,
    });

    if (typeof source === 'object' && source.functionNodes) {
      return new FunctionBuilder().fromJSON(source.functionNodes, FunctionNode);
    }

    const rootNode = new FunctionNode(source, rootNodeOptions);

    let functionNodes = null;
    if (functions) {
      functionNodes = functions.map((fn) => new FunctionNode(fn.source, {
        returnType: fn.returnType,
        argumentTypes: fn.argumentTypes,
        output,
        plugins,
        constants,
        constantTypes,
        constantBitRatios,
        optimizeFloatMemory,
        precision,
        lookupReturnType,
        lookupArgumentType,
        lookupFunctionArgumentTypes,
        lookupFunctionArgumentName,
        lookupFunctionArgumentBitRatio,
        triggerImplyArgumentType,
        triggerTrackArgumentSynonym,
        lookupArgumentSynonym,
        onFunctionCall,
      }));
    }

    let subKernelNodes = null;
    if (subKernels) {
      subKernelNodes = subKernels.map((subKernel) => {
        const { name, source } = subKernel;
        return new FunctionNode(source, Object.assign({}, nodeOptions, {
          name,
          isSubKernel: true,
          isRootKernel: false,
          returnType: 'Number', 
        }));
      });
    }

    const functionBuilder = new FunctionBuilder({
      kernel,
      rootNode,
      functionNodes,
      nativeFunctions,
      subKernelNodes
    });

    return functionBuilder;
  }

  constructor(settings) {
    settings = settings || {};
    this.kernel = settings.kernel;
    this.rootNode = settings.rootNode;
    this.functionNodes = settings.functionNodes || [];
    this.subKernelNodes = settings.subKernelNodes || [];
    this.nativeFunctions = settings.nativeFunctions || [];
    this.functionMap = {};
    this.nativeFunctionNames = [];
    this.lookupChain = [];
    this.argumentChain = [];
    this.functionNodeDependencies = {};

    if (this.rootNode) {
      this.functionMap['kernel'] = this.rootNode;
    }

    if (this.functionNodes) {
      for (let i = 0; i < this.functionNodes.length; i++) {
        this.functionMap[this.functionNodes[i].name] = this.functionNodes[i];
      }
    }

    if (this.subKernelNodes) {
      for (let i = 0; i < this.subKernelNodes.length; i++) {
        this.functionMap[this.subKernelNodes[i].name] = this.subKernelNodes[i];
      }
    }

    if (this.nativeFunctions) {
      for (let i = 0; i < this.nativeFunctions.length; i++) {
        const nativeFunction = this.nativeFunctions[i];
        this.nativeFunctionNames.push(nativeFunction.name);
      }
    }
  }

  addFunctionNode(functionNode) {
    this.functionMap[functionNode.name] = functionNode;
    if (functionNode.isRootKernel) {
      this.rootNode = functionNode;
    }
  }

  traceFunctionCalls(functionName, retList) {
    functionName = functionName || 'kernel';
    retList = retList || [];

    if (this.nativeFunctionNames.indexOf(functionName) > -1) {
      if (retList.indexOf(functionName) === -1) {
        retList.push(functionName);
      }
      return retList;
    }

    const functionNode = this.functionMap[functionName];
    if (functionNode) {
      const functionIndex = retList.indexOf(functionName);
      if (functionIndex === -1) {
        retList.push(functionName);
        functionNode.toString(); 
        for (let i = 0; i < functionNode.calledFunctions.length; ++i) {
          this.traceFunctionCalls(functionNode.calledFunctions[i], retList);
        }
      } else {
        const dependantFunctionName = retList.splice(functionIndex, 1)[0];
        retList.push(dependantFunctionName);
      }
    }

    return retList;
  }

  getPrototypeString(functionName) {
    return this.getPrototypes(functionName).join('\n');
  }

  getPrototypes(functionName) {
    if (this.rootNode) {
      this.rootNode.toString();
    }
    if (functionName) {
      return this.getPrototypesFromFunctionNames(this.traceFunctionCalls(functionName, []).reverse());
    }
    return this.getPrototypesFromFunctionNames(Object.keys(this.functionMap));
  }

  getStringFromFunctionNames(functionList) {
    const ret = [];
    for (let i = 0; i < functionList.length; ++i) {
      const node = this.functionMap[functionList[i]];
      if (node) {
        ret.push(this.functionMap[functionList[i]].toString());
      }
    }
    return ret.join('\n');
  }

  getPrototypesFromFunctionNames(functionList) {
    const ret = [];
    for (let i = 0; i < functionList.length; ++i) {
      const functionName = functionList[i];
      const functionIndex = this.nativeFunctionNames.indexOf(functionName);
      if (functionIndex > -1) {
        ret.push(this.nativeFunctions[functionIndex].source);
        continue;
      }
      const node = this.functionMap[functionName];
      if (node) {
        ret.push(node.toString());
      }
    }
    return ret;
  }

  toJSON() {
    return this.traceFunctionCalls(this.rootNode.name).reverse().map(name => {
      const nativeIndex = this.nativeFunctions.indexOf(name);
      if (nativeIndex > -1) {
        return {
          name,
          source: this.nativeFunctions[nativeIndex].source
        };
      } else if (this.functionMap[name]) {
        return this.functionMap[name].toJSON();
      } else {
        throw new Error(`function ${ name } not found`);
      }
    });
  }

  fromJSON(jsonFunctionNodes, FunctionNode) {
    this.functionMap = {};
    for (let i = 0; i < jsonFunctionNodes.length; i++) {
      const jsonFunctionNode = jsonFunctionNodes[i];
      this.functionMap[jsonFunctionNode.settings.name] = new FunctionNode(jsonFunctionNode.ast, jsonFunctionNode.settings);
    }
    return this;
  }

  getString(functionName) {
    if (functionName) {
      return this.getStringFromFunctionNames(this.traceFunctionCalls(functionName).reverse());
    }
    return this.getStringFromFunctionNames(Object.keys(this.functionMap));
  }

  lookupArgumentType(argumentName, requestingNode) {
    const index = requestingNode.argumentNames.indexOf(argumentName);
    if (index === -1) return null;
    if (this.lookupChain.length === 0) return null;
    let link = this.lookupChain[this.lookupChain.length - 1 - this.argumentChain.length];
    if (!link) return null;
    const {
      ast,
      requestingNode: parentRequestingNode
    } = link;
    if (ast.arguments.length === 0) return null;
    const usedVariable = ast.arguments[index];
    if (!usedVariable) return null;
    this.argumentChain.push(argumentName);
    const type = parentRequestingNode.getType(usedVariable);
    this.argumentChain.pop();
    return type;
  }

  lookupReturnType(functionName, ast, requestingNode) {
    if (ast.type !== 'CallExpression') {
      throw new Error(`expected ast type of "CallExpression", but is ${ ast.type }`);
    }
    if (this._isNativeFunction(functionName)) {
      return this._lookupNativeFunctionReturnType(functionName);
    } else if (this._isFunction(functionName)) {
      const node = this._getFunction(functionName);
      if (node.returnType) {
        return node.returnType;
      } else {
        this.lookupChain.push({
          name: requestingNode.name,
          ast,
          requestingNode
        });
        const type = node.getType(node.getJsAST());
        this.lookupChain.pop();
        return node.returnType = type;
      }
    }

    return null;
  }

  _getFunction(functionName) {
    if (!this._isFunction(functionName)) {
      new Error(`Function ${functionName} not found`);
    }
    return this.functionMap[functionName];
  }

  _isFunction(functionName) {
    return Boolean(this.functionMap[functionName]);
  }

  _getNativeFunction(functionName) {
    for (let i = 0; i < this.nativeFunctions.length; i++) {
      if (this.nativeFunctions[i].name === functionName) return this.nativeFunctions[i];
    }
    return null;
  }

  _isNativeFunction(functionName) {
    return Boolean(this._getNativeFunction(functionName));
  }

  _lookupNativeFunctionReturnType(functionName) {
    let nativeFunction = this._getNativeFunction(functionName);
    if (nativeFunction) {
      return nativeFunction.returnType;
    }
    throw new Error(`Native function ${ functionName } not found`);
  }

  lookupFunctionArgumentTypes(functionName) {
    if (this._isNativeFunction(functionName)) {
      return this._getNativeFunction(functionName).argumentTypes;
    } else if (this._isFunction(functionName)) {
      return this._getFunction(functionName).argumentTypes;
    }
    return null;
  }

  lookupFunctionArgumentName(functionName, argumentIndex) {
    return this._getFunction(functionName).argumentNames[argumentIndex];
  }

  lookupFunctionArgumentBitRatio(functionName, argumentName) {
    if (!this._isFunction(functionName)) {
      throw new Error('function not found');
    }
    if (this.rootNode.name === functionName) {
      const i = this.rootNode.argumentNames.indexOf(argumentName);
      if (i !== -1) {
        return this.rootNode.argumentBitRatios[i];
      } else {
        throw new Error('argument bit ratio not found');
      }
    } else {
      const node = this._getFunction(functionName);
      const argumentSynonym = node.argumentSynonym[node.synonymIndex];
      if (!argumentSynonym) {
        throw new Error('argument synonym not found');
      }
      return this.lookupFunctionArgumentBitRatio(argumentSynonym.functionName, argumentSynonym.argumentName);
    }
  }

  assignArgumentType(functionName, i, argumentType, requestingNode) {
    if (!this._isFunction(functionName)) return;
    this._getFunction(functionName).argumentTypes[i] = argumentType;
  }

  trackArgumentSynonym(functionName, argumentName, calleeFunctionName, argumentIndex) {
    if (!this._isFunction(calleeFunctionName)) return;
    const node = this._getFunction(calleeFunctionName);
    if (!node.argumentSynonym) {
      node.argumentSynonym = {};
    }
    const calleeArgumentName = node.argumentNames[argumentIndex];
    if (!node.argumentSynonym[calleeArgumentName]) {
      node.argumentSynonym[calleeArgumentName] = {};
    }
    node.synonymIndex++;
    node.argumentSynonym[node.synonymIndex] = {
      functionName,
      argumentName,
      calleeArgumentName,
      calleeFunctionName,
    };
  }

  lookupArgumentSynonym(originFunctionName, functionName, argumentName) {
    if (originFunctionName === functionName) return argumentName;
    if (!this._isFunction(functionName)) return null;
    const node = this._getFunction(functionName);
    const argumentSynonym = node.argumentSynonym[node.synonymUseIndex];
    if (!argumentSynonym) return null;
    if (argumentSynonym.calleeArgumentName !== argumentName) return null;
    node.synonymUseIndex++;
    if (originFunctionName !== functionName) {
      return this.lookupArgumentSynonym(originFunctionName, argumentSynonym.functionName, argumentSynonym.argumentName);
    }
    return argumentSynonym.argumentName;
  }

  trackFunctionCall(functionName, calleeFunctionName) {
    if (!this.functionNodeDependencies[functionName]) {
      this.functionNodeDependencies[functionName] = new Set();
    }
    this.functionNodeDependencies[functionName].add(calleeFunctionName);
  }

  getKernelResultType() {
    return this.rootNode.getType(this.rootNode.ast);
  }

  getReturnTypes() {
    const result = {
      [this.rootNode.name]: this.rootNode.getType(this.rootNode.ast),
    };
    const list = this.traceFunctionCalls(this.rootNode.name);
    for (let i = 0; i < list.length; i++) {
      const functionName = list[i];
      const functionNode = this.functionMap[functionName];
      result[functionName] = functionNode.getType(functionNode.ast);
    }
    return result;
  }
}

module.exports = {
  FunctionBuilder
};
},{}],10:[function(require,module,exports){
const { utils } = require('../utils');
const acorn = require('acorn');

class FunctionNode {
  constructor(source, settings) {
    if (!source) {
      throw new Error('source parameter is missing');
    }
    settings = settings || {};

    this.source = source;
    this.name = typeof source === 'string' ? settings.isRootKernel ?
      'kernel' :
      (settings.name || utils.getFunctionNameFromString(source)) : null;
    this.calledFunctions = [];
    this.calledFunctionsArguments = {};
    this.constants = {};
    this.constantTypes = {};
    this.constantBitRatios = {};
    this.isRootKernel = false;
    this.isSubKernel = false;
    this.debug = null;
    this.declarations = {};
    this.states = [];
    this.lookupReturnType = null;
    this.lookupArgumentType = null;
    this.lookupFunctionArgumentTypes = null;
    this.lookupFunctionArgumentBitRatio = null;
    this.triggerImplyArgumentType = null;
    this.triggerTrackArgumentSynonym = null;
    this.lookupArgumentSynonym = null;
    this.onNestedFunction = null;
    this.onFunctionCall = null;
    this.optimizeFloatMemory = null;
    this.precision = null;
    this.loopMaxIterations = null;
    this.argumentNames = (typeof this.source === 'string' ? utils.getArgumentNamesFromString(this.source) : null);
    this.argumentTypes = [];
    this.argumentSizes = [];
    this.argumentBitRatios = null;
    this.returnType = null;
    this.output = [];
    this.plugins = null;
    this.leadingReturnStatement = null;
    this.followingReturnStatement = null;
    this.dynamicOutput = null;

    if (settings) {
      for (const p in settings) {
        if (!settings.hasOwnProperty(p)) continue;
        if (!this.hasOwnProperty(p)) continue;
        this[p] = settings[p];
      }
    }

    this.synonymIndex = -1;
    this.synonymUseIndex = 0;
    this.argumentSynonym = {};
    this.literalTypes = {};

    if (this.isRootKernel && !this.returnType) {
      this.returnType = 'Number';
    }

    this.validate();
    this._string = null;
    this._internalVariableNames = {};
  }

  validate() {
    if (typeof this.source !== 'string') {
      throw new Error('this.source not a string');
    }

    if (!utils.isFunctionString(this.source)) {
      throw new Error('this.source not a function string');
    }

    if (!this.name) {
      throw new Error('this.name could not be set');
    }

    if (this.argumentTypes.length > 0 && this.argumentTypes.length !== this.argumentNames.length) {
      throw new Error(`argumentTypes count of ${ this.argumentTypes.length } exceeds ${ this.argumentNames.length }`);
    }

    if (this.output.length < 1) {
      throw new Error('this.output is not big enough');
    }
  }

  isIdentifierConstant(name) {
    if (!this.constants) return false;
    return this.constants.hasOwnProperty(name);
  }

  isInput(argumentName) {
    return this.argumentTypes[this.argumentNames.indexOf(argumentName)] === 'Input';
  }

  pushState(state) {
    this.states.push(state);
  }

  popState(state) {
    if (this.state !== state) {
      throw new Error(`Cannot popState ${ state } when in ${ this.state }`);
    }
    this.states.pop();
  }

  isState(state) {
    return this.state === state;
  }

  get state() {
    return this.states[this.states.length - 1];
  }

  astMemberExpressionUnroll(ast) {
    if (ast.type === 'Identifier') {
      return ast.name;
    } else if (ast.type === 'ThisExpression') {
      return 'this';
    }

    if (ast.type === 'MemberExpression') {
      if (ast.object && ast.property) {
        if (ast.object.hasOwnProperty('name') && ast.object.name[0] === '_') {
          return this.astMemberExpressionUnroll(ast.property);
        }

        return (
          this.astMemberExpressionUnroll(ast.object) +
          '.' +
          this.astMemberExpressionUnroll(ast.property)
        );
      }
    }

    if (ast.hasOwnProperty('expressions')) {
      const firstExpression = ast.expressions[0];
      if (firstExpression.type === 'Literal' && firstExpression.value === 0 && ast.expressions.length === 2) {
        return this.astMemberExpressionUnroll(ast.expressions[1]);
      }
    }

    throw this.astErrorOutput('Unknown astMemberExpressionUnroll', ast);
  }

  getJsAST(inParser) {
    if (typeof this.source === 'object') {
      return this.ast = this.source;
    }
    if (this.ast) {
      return this.ast;
    }

    inParser = inParser || acorn;
    if (inParser === null) {
      throw 'Missing JS to AST parser';
    }

    const ast = Object.freeze(inParser.parse(`const parser_${ this.name } = ${ this.source };`, {
      locations: true
    }));
    const functionAST = ast.body[0].declarations[0].init;
    if (!ast) {
      throw new Error('Failed to parse JS code');
    }

    return this.ast = functionAST;
  }

  getVariableType(name) {
    let type = null;
    const argumentIndex = this.argumentNames.indexOf(name);
    if (argumentIndex === -1) {
      if (this.declarations[name]) {
        return this.declarations[name].type;
      }
    } else {
      const argumentType = this.argumentTypes[argumentIndex];
      if (argumentType) {
        type = argumentType;
      } else if (this.lookupArgumentType) {
        type = this.argumentTypes[argumentIndex] = this.lookupArgumentType(name, this);
      }
    }
    if (!type) {
    }
    return type;
  }

  getConstantType(constantName) {
    if (this.constantTypes[constantName]) {
      const type = this.constantTypes[constantName];
      if (type === 'Float') {
        return 'Number';
      } else {
        return type;
      }
    }
    throw new Error(`Type for constant "${ constantName }" not declared`);
  }

  getKernelArgumentName(name) {
    if (!this.lookupArgumentSynonym) return null;
    const argumentIndex = this.argumentNames.indexOf(name);
    if (argumentIndex === -1) return null;
    return this.lookupArgumentSynonym('kernel', this.name, name);
  }

  toString() {
    if (this._string) return this._string;
    return this._string = this.astGeneric(this.getJsAST(), []).join('').trim();
  }

  toJSON() {
    const settings = {
      source: this.source,
      name: this.name,
      constants: this.constants,
      constantTypes: this.constantTypes,
      isRootKernel: this.isRootKernel,
      isSubKernel: this.isSubKernel,
      debug: this.debug,
      output: this.output,
      loopMaxIterations: this.loopMaxIterations,
      argumentNames: this.argumentNames,
      argumentTypes: this.argumentTypes,
      argumentSizes: this.argumentSizes,
      returnType: this.returnType,
      leadingReturnStatement: this.leadingReturnStatement,
      followingReturnStatement: this.followingReturnStatement,
    };

    return {
      ast: this.ast,
      settings
    };
  }

  getType(ast) {
    if (Array.isArray(ast)) {
      return this.getType(ast[ast.length - 1]);
    }
    switch (ast.type) {
      case 'BlockStatement':
        return this.getType(ast.body);
      case 'ArrayExpression':
        return `Array(${ ast.elements.length })`;
      case 'Literal':
        const literalKey = `${ast.start},${ast.end}`;
        if (this.literalTypes[literalKey]) {
          return this.literalTypes[literalKey];
        }
        if (Number.isInteger(ast.value)) {
          return 'LiteralInteger';
        } else if (ast.value === true || ast.value === false) {
          return 'Boolean';
        } else {
          return 'Number';
        }
        case 'AssignmentExpression':
          return this.getType(ast.left);
        case 'CallExpression':
          if (this.isAstMathFunction(ast)) {
            return 'Number';
          }
          if (!ast.callee || !ast.callee.name) {
            if (ast.callee.type === 'SequenceExpression' && ast.callee.expressions[ast.callee.expressions.length - 1].property.name) {
              return this.lookupReturnType(ast.callee.expressions[ast.callee.expressions.length - 1].property.name, ast, this);
            }
            throw this.astErrorOutput('Unknown call expression', ast);
          }
          if (ast.callee && ast.callee.name) {
            return this.lookupReturnType(ast.callee.name, ast, this);
          }
          throw this.astErrorOutput(`Unhandled getType Type "${ ast.type }"`, ast);
        case 'BinaryExpression':
          switch (ast.operator) {
            case '%':
              return 'Number';
            case '>':
            case '<':
              return 'Boolean';
          }
          const type = this.getType(ast.left);
          return typeLookupMap[type] || type;
        case 'UpdateExpression':
          return this.getType(ast.argument);
        case 'UnaryExpression':
          return this.getType(ast.argument);
        case 'VariableDeclaration':
          return this.getType(ast.declarations[0]);
        case 'VariableDeclarator':
          return this.getType(ast.id);
        case 'Identifier':
          if (this.isAstVariable(ast)) {
            const signature = this.getVariableSignature(ast);
            if (signature === 'value') {
              if (this.argumentNames.indexOf(ast.name) > -1) {
                return this.getVariableType(ast.name);
              } else if (this.declarations[ast.name]) {
                return this.declarations[ast.name].type;
              }
            }
          }
          if (ast.name === 'Infinity') {
            return 'Number';
          }
          const origin = this.findIdentifierOrigin(ast);
          if (origin && origin.init) {
            return this.getType(origin.init);
          }
          return null;
        case 'ReturnStatement':
          return this.getType(ast.argument);
        case 'MemberExpression':
          if (this.isAstMathFunction(ast)) {
            switch (ast.property.name) {
              case 'ceil':
                return 'Integer';
              case 'floor':
                return 'Integer';
              case 'round':
                return 'Integer';
            }
            return 'Number';
          }
          if (this.isAstVariable(ast)) {
            const variableSignature = this.getVariableSignature(ast);
            switch (variableSignature) {
              case 'value[]':
                return typeLookupMap[this.getVariableType(ast.object.name)];
              case 'value[][]':
                return typeLookupMap[this.getVariableType(ast.object.object.name)];
              case 'value[][][]':
                return typeLookupMap[this.getVariableType(ast.object.object.object.name)];
              case 'value[][][][]':
                return typeLookupMap[this.getVariableType(ast.object.object.object.object.name)];
              case 'this.thread.value':
                return 'Integer';
              case 'this.output.value':
                return this.dynamicOutput ? 'Integer' : 'LiteralInteger';
              case 'this.constants.value':
                return this.getConstantType(ast.property.name);
              case 'this.constants.value[]':
                return typeLookupMap[this.getConstantType(ast.object.property.name)];
              case 'this.constants.value[][]':
                return typeLookupMap[this.getConstantType(ast.object.object.property.name)];
              case 'this.constants.value[][][]':
                return typeLookupMap[this.getConstantType(ast.object.object.object.property.name)];
              case 'this.constants.value[][][][]':
                return typeLookupMap[this.getConstantType(ast.object.object.object.object.property.name)];
              case 'fn()[]':
                return typeLookupMap[this.getType(ast.object)];
              case 'fn()[][]':
                return typeLookupMap[this.getType(ast.object)];
              case 'fn()[][][]':
                return typeLookupMap[this.getType(ast.object)];
              case 'value.value':
                if (this.isAstMathVariable(ast)) {
                  return 'Number';
                }
                switch (ast.property.name) {
                  case 'r':
                    return typeLookupMap[this.getVariableType(ast.object.name)];
                  case 'g':
                    return typeLookupMap[this.getVariableType(ast.object.name)];
                  case 'b':
                    return typeLookupMap[this.getVariableType(ast.object.name)];
                  case 'a':
                    return typeLookupMap[this.getVariableType(ast.object.name)];
                }
                case '[][]':
                  return 'Number';
            }
            throw this.astErrorOutput('Unhandled getType MemberExpression', ast);
          }
          throw this.astErrorOutput('Unhandled getType MemberExpression', ast);
        case 'ConditionalExpression':
          return this.getType(ast.consequent);
        case 'FunctionDeclaration':
        case 'FunctionExpression':
          const lastReturn = this.findLastReturn(ast.body);
          if (lastReturn) {
            return this.getType(lastReturn);
          }
          return null;
        case 'IfStatement':
          return this.getType(ast.consequent);
        default:
          throw this.astErrorOutput(`Unhandled getType Type "${ ast.type }"`, ast);
    }
  }

  isAstMathVariable(ast) {
    const mathProperties = [
      'E',
      'PI',
      'SQRT2',
      'SQRT1_2',
      'LN2',
      'LN10',
      'LOG2E',
      'LOG10E',
    ];
    return ast.type === 'MemberExpression' &&
      ast.object && ast.object.type === 'Identifier' &&
      ast.object.name === 'Math' &&
      ast.property &&
      ast.property.type === 'Identifier' &&
      mathProperties.indexOf(ast.property.name) > -1;
  }

  isAstMathFunction(ast) {
    const mathFunctions = [
      'abs',
      'acos',
      'asin',
      'atan',
      'atan2',
      'ceil',
      'cos',
      'exp',
      'floor',
      'log',
      'log2',
      'max',
      'min',
      'pow',
      'random',
      'round',
      'sign',
      'sin',
      'sqrt',
      'tan',
    ];
    return ast.type === 'CallExpression' &&
      ast.callee &&
      ast.callee.type === 'MemberExpression' &&
      ast.callee.object &&
      ast.callee.object.type === 'Identifier' &&
      ast.callee.object.name === 'Math' &&
      ast.callee.property &&
      ast.callee.property.type === 'Identifier' &&
      mathFunctions.indexOf(ast.callee.property.name) > -1;
  }

  isAstVariable(ast) {
    return ast.type === 'Identifier' || ast.type === 'MemberExpression';
  }

  isSafe(ast) {
    return this.isSafeDependencies(this.getDependencies(ast));
  }

  isSafeDependencies(dependencies) {
    return dependencies && dependencies.every ? dependencies.every(dependency => dependency.isSafe) : true;
  }

  getDependencies(ast, dependencies, isNotSafe) {
    if (!dependencies) {
      dependencies = [];
    }
    if (!ast) return null;
    if (Array.isArray(ast)) {
      for (let i = 0; i < ast.length; i++) {
        this.getDependencies(ast[i], dependencies, isNotSafe);
      }
      return dependencies;
    }
    switch (ast.type) {
      case 'Literal':
        dependencies.push({
          origin: 'literal',
          value: ast.value,
          isSafe: isNotSafe === true ? false : ast.value > -Infinity && ast.value < Infinity && !isNaN(ast.value)
        });
        break;
      case 'VariableDeclarator':
        return this.getDependencies(ast.init, dependencies, isNotSafe);
      case 'Identifier':
        if (this.declarations[ast.name]) {
          dependencies.push({
            name: ast.name,
            origin: 'declaration',
            isSafe: isNotSafe ? false : this.isSafeDependencies(this.declarations[ast.name].dependencies),
          });
        } else if (this.argumentNames.indexOf(ast.name) > -1) {
          dependencies.push({
            name: ast.name,
            origin: 'argument',
            isSafe: false,
          });
        }
        break;
      case 'FunctionDeclaration':
        return this.getDependencies(ast.body.body[ast.body.body.length - 1], dependencies, isNotSafe);
      case 'ReturnStatement':
        return this.getDependencies(ast.argument, dependencies);
      case 'BinaryExpression':
        isNotSafe = (ast.operator === '/' || ast.operator === '*');
        this.getDependencies(ast.left, dependencies, isNotSafe);
        this.getDependencies(ast.right, dependencies, isNotSafe);
        return dependencies;
      case 'UnaryExpression':
      case 'UpdateExpression':
        return this.getDependencies(ast.argument, dependencies, isNotSafe);
      case 'VariableDeclaration':
        return this.getDependencies(ast.declarations, dependencies, isNotSafe);
      case 'ArrayExpression':
        dependencies.push({
          origin: 'declaration',
          isSafe: true,
        });
        return dependencies;
      case 'CallExpression':
        dependencies.push({
          origin: 'function',
          isSafe: true,
        });
        return dependencies;
      case 'MemberExpression':
        const details = this.getMemberExpressionDetails(ast);
        if (this.dynamicOutput && details.signature === 'this.output.value') {
          dependencies.push({
            name: details.name,
            origin: 'output',
            isSafe: false,
          });
          return dependencies;
        }
        if (details) {
          return details.type;
        }
        default:
          throw this.astErrorOutput(`Unhandled type ${ ast.type } in getAllVariables`, ast);
    }
    return dependencies;
  }

  getVariableSignature(ast) {
    if (!this.isAstVariable(ast)) {
      throw new Error(`ast of type "${ ast.type }" is not a variable signature`);
    }
    if (ast.type === 'Identifier') {
      return 'value';
    }
    const signature = [];
    while (true) {
      if (!ast) break;
      if (ast.computed) {
        signature.push('[]');
      } else if (ast.type === 'ThisExpression') {
        signature.unshift('this');
      } else if (ast.property && ast.property.name) {
        if (
          ast.property.name === 'x' ||
          ast.property.name === 'y' ||
          ast.property.name === 'z'
        ) {
          signature.unshift('.value');
        } else if (
          ast.property.name === 'constants' ||
          ast.property.name === 'thread' ||
          ast.property.name === 'output'
        ) {
          signature.unshift('.' + ast.property.name);
        } else {
          signature.unshift('.value');
        }
      } else if (ast.name) {
        signature.unshift('value');
      } else if (ast.callee && ast.callee.name) {
        signature.unshift('fn()');
      } else if (ast.elements) {
        signature.unshift('[]');
      } else {
        signature.unshift('unknown');
      }
      ast = ast.object;
    }

    const signatureString = signature.join('');
    const allowedExpressions = [
      'value',
      'value[]',
      'value[][]',
      'value[][][]',
      'value[][][][]',
      'value.value',
      'this.thread.value',
      'this.output.value',
      'this.constants.value',
      'this.constants.value[]',
      'this.constants.value[][]',
      'this.constants.value[][][]',
      'this.constants.value[][][][]',
      'fn()[]',
      'fn()[][]',
      'fn()[][][]',
      '[][]',
    ];
    if (allowedExpressions.indexOf(signatureString) > -1) {
      return signatureString;
    }
    return null;
  }

  build() {
    return this.toString().length > 0;
  }

  astGeneric(ast, retArr) {
    if (ast === null) {
      throw this.astErrorOutput('NULL ast', ast);
    } else {
      if (Array.isArray(ast)) {
        for (let i = 0; i < ast.length; i++) {
          this.astGeneric(ast[i], retArr);
        }
        return retArr;
      }

      switch (ast.type) {
        case 'FunctionDeclaration':
          return this.astFunctionDeclaration(ast, retArr);
        case 'FunctionExpression':
          return this.astFunctionExpression(ast, retArr);
        case 'ReturnStatement':
          return this.astReturnStatement(ast, retArr);
        case 'Literal':
          return this.astLiteral(ast, retArr);
        case 'BinaryExpression':
          return this.astBinaryExpression(ast, retArr);
        case 'Identifier':
          return this.astIdentifierExpression(ast, retArr);
        case 'AssignmentExpression':
          return this.astAssignmentExpression(ast, retArr);
        case 'ExpressionStatement':
          return this.astExpressionStatement(ast, retArr);
        case 'EmptyStatement':
          return this.astEmptyStatement(ast, retArr);
        case 'BlockStatement':
          return this.astBlockStatement(ast, retArr);
        case 'IfStatement':
          return this.astIfStatement(ast, retArr);
        case 'BreakStatement':
          return this.astBreakStatement(ast, retArr);
        case 'ContinueStatement':
          return this.astContinueStatement(ast, retArr);
        case 'ForStatement':
          return this.astForStatement(ast, retArr);
        case 'WhileStatement':
          return this.astWhileStatement(ast, retArr);
        case 'DoWhileStatement':
          return this.astDoWhileStatement(ast, retArr);
        case 'VariableDeclaration':
          return this.astVariableDeclaration(ast, retArr);
        case 'VariableDeclarator':
          return this.astVariableDeclarator(ast, retArr);
        case 'ThisExpression':
          return this.astThisExpression(ast, retArr);
        case 'SequenceExpression':
          return this.astSequenceExpression(ast, retArr);
        case 'UnaryExpression':
          return this.astUnaryExpression(ast, retArr);
        case 'UpdateExpression':
          return this.astUpdateExpression(ast, retArr);
        case 'LogicalExpression':
          return this.astLogicalExpression(ast, retArr);
        case 'MemberExpression':
          return this.astMemberExpression(ast, retArr);
        case 'CallExpression':
          return this.astCallExpression(ast, retArr);
        case 'ArrayExpression':
          return this.astArrayExpression(ast, retArr);
        case 'DebuggerStatement':
          return this.astDebuggerStatement(ast, retArr);
        case 'ConditionalExpression':
          return this.astConditionalExpression(ast, retArr);
      }

      throw this.astErrorOutput('Unknown ast type : ' + ast.type, ast);
    }
  }
  astErrorOutput(error, ast) {
    if (typeof this.source !== 'string') {
      return new Error(error);
    }

    const debugString = utils.getAstString(this.source, ast);
    const leadingSource = this.source.substr(ast.start);
    const splitLines = leadingSource.split(/\n/);
    const lineBefore = splitLines.length > 0 ? splitLines[splitLines.length - 1] : 0;
    return new Error(`${error} on line ${ splitLines.length }, position ${ lineBefore.length }:\n ${ debugString }`);
  }

  astDebuggerStatement(arrNode, retArr) {
    return retArr;
  }

  astConditionalExpression(ast, retArr) {
    if (ast.type !== 'ConditionalExpression') {
      throw this.astErrorOutput('Not a conditional expression', ast);
    }
    retArr.push('(');
    this.astGeneric(ast.test, retArr);
    retArr.push('?');
    this.astGeneric(ast.consequent, retArr);
    retArr.push(':');
    this.astGeneric(ast.alternate, retArr);
    retArr.push(')');
    return retArr;
  }
  astFunctionDeclaration(ast, retArr) {
    if (this.onNestedFunction) {
      let returnType = this.getType(ast);
      if (returnType === 'LiteralInteger') {
        returnType = 'Number';
      }
      this.onNestedFunction(utils.getAstString(this.source, ast), returnType);
    }
    return retArr;
  }
  astFunctionExpression(ast, retArr) {
    return retArr;
  }
  astReturnStatement(ast, retArr) {
    return retArr;
  }
  astLiteral(ast, retArr) {
    this.literalTypes[`${ast.start},${ast.end}`] = 'Number';
    return retArr;
  }
  astBinaryExpression(ast, retArr) {
    return retArr;
  }
  astIdentifierExpression(ast, retArr) {
    return retArr;
  }
  astAssignmentExpression(ast, retArr) {
    return retArr;
  }
  astExpressionStatement(esNode, retArr) {
    this.astGeneric(esNode.expression, retArr);
    retArr.push(';');
    return retArr;
  }
  astEmptyStatement(eNode, retArr) {
    return retArr;
  }
  astBlockStatement(ast, retArr) {
    return retArr;
  }
  astIfStatement(ast, retArr) {
    return retArr;
  }
  astBreakStatement(brNode, retArr) {
    retArr.push('break;');
    return retArr;
  }
  astContinueStatement(crNode, retArr) {
    retArr.push('continue;\n');
    return retArr;
  }
  astForStatement(ast, retArr) {
    return retArr;
  }
  astWhileStatement(ast, retArr) {
    return retArr;
  }
  astDoWhileStatement(ast, retArr) {
    return retArr;
  }
  astVariableDeclaration(varDecNode, retArr) {
    const declarations = varDecNode.declarations;
    if (!declarations || !declarations[0] || !declarations[0].init) {
      throw this.astErrorOutput('Unexpected expression', varDecNode);
    }
    const result = [];
    const firstDeclaration = declarations[0];
    const init = firstDeclaration.init;
    let type = this.isState('in-for-loop-init') ? 'Integer' : this.getType(init);
    if (type === 'LiteralInteger') {
      type = 'Number';
    }
    const markupType = typeMap[type];
    if (!markupType) {
      throw this.astErrorOutput(`Markup type ${ markupType } not handled`, varDecNode);
    }
    let dependencies = this.getDependencies(firstDeclaration.init);
    this.declarations[firstDeclaration.id.name] = Object.freeze({
      type,
      dependencies,
      isSafe: dependencies.every(dependency => dependency.isSafe)
    });
    const initResult = [`${type} user_${firstDeclaration.id.name}=`];
    this.astGeneric(init, initResult);
    result.push(initResult.join(''));

    for (let i = 1; i < declarations.length; i++) {
      const declaration = declarations[i];
      dependencies = this.getDependencies(declaration);
      this.declarations[declaration.id.name] = Object.freeze({
        type,
        dependencies,
        isSafe: false
      });
      this.astGeneric(declaration, result);
    }

    retArr.push(retArr, result.join(','));
    retArr.push(';');
    return retArr;
  }
  astVariableDeclarator(iVarDecNode, retArr) {
    this.astGeneric(iVarDecNode.id, retArr);
    if (iVarDecNode.init !== null) {
      retArr.push('=');
      this.astGeneric(iVarDecNode.init, retArr);
    }
    return retArr;
  }
  astThisExpression(ast, retArr) {
    return retArr;
  }
  astSequenceExpression(sNode, retArr) {
    for (let i = 0; i < sNode.expressions.length; i++) {
      if (i > 0) {
        retArr.push(',');
      }
      this.astGeneric(sNode.expressions, retArr);
    }
    return retArr;
  }
  astUnaryExpression(uNode, retArr) {
    if (uNode.prefix) {
      retArr.push(uNode.operator);
      this.astGeneric(uNode.argument, retArr);
    } else {
      this.astGeneric(uNode.argument, retArr);
      retArr.push(uNode.operator);
    }

    return retArr;
  }
  astUpdateExpression(uNode, retArr) {
    if (uNode.prefix) {
      retArr.push(uNode.operator);
      this.astGeneric(uNode.argument, retArr);
    } else {
      this.astGeneric(uNode.argument, retArr);
      retArr.push(uNode.operator);
    }

    return retArr;
  }
  astLogicalExpression(logNode, retArr) {
    retArr.push('(');
    this.astGeneric(logNode.left, retArr);
    retArr.push(logNode.operator);
    this.astGeneric(logNode.right, retArr);
    retArr.push(')');
    return retArr;
  }
  astMemberExpression(ast, retArr) {
    return retArr;
  }
  astCallExpression(ast, retArr) {
    return retArr;
  }
  astArrayExpression(ast, retArr) {
    return retArr;
  }

  getMemberExpressionDetails(ast) {
    if (ast.type !== 'MemberExpression') {
      throw this.astErrorOutput(`Expression ${ ast.type } not a MemberExpression`, ast);
    }
    let name = null;
    let type = null;
    const variableSignature = this.getVariableSignature(ast);
    switch (variableSignature) {
      case 'value':
        return null;
      case 'this.thread.value':
      case 'this.output.value':
        return {
          signature: variableSignature,
            type: 'Integer',
            name: ast.property.name
        };
      case 'value[]':
        if (typeof ast.object.name !== 'string') {
          throw this.astErrorOutput('Unexpected expression', ast);
        }
        name = ast.object.name;
        return {
          name,
          origin: 'user',
            signature: variableSignature,
            type: this.getVariableType(name),
            xProperty: ast.property
        };
      case 'value[][]':
        if (typeof ast.object.object.name !== 'string') {
          throw this.astErrorOutput('Unexpected expression', ast);
        }
        name = ast.object.object.name;
        return {
          name,
          origin: 'user',
            signature: variableSignature,
            type: this.getVariableType(name),
            yProperty: ast.object.property,
            xProperty: ast.property,
        };
      case 'value[][][]':
        if (typeof ast.object.object.object.name !== 'string') {
          throw this.astErrorOutput('Unexpected expression', ast);
        }
        name = ast.object.object.object.name;
        return {
          name,
          origin: 'user',
            signature: variableSignature,
            type: this.getVariableType(name),
            zProperty: ast.object.object.property,
            yProperty: ast.object.property,
            xProperty: ast.property,
        };
      case 'value[][][][]':
        if (typeof ast.object.object.object.object.name !== 'string') {
          throw this.astErrorOutput('Unexpected expression', ast);
        }
        name = ast.object.object.object.object.name;
        return {
          name,
          origin: 'user',
            signature: variableSignature,
            type: this.getVariableType(name),
            zProperty: ast.object.object.property,
            yProperty: ast.object.property,
            xProperty: ast.property,
        };
      case 'value.value':
        if (typeof ast.property.name !== 'string') {
          throw this.astErrorOutput('Unexpected expression', ast);
        }
        if (this.isAstMathVariable(ast)) {
          name = ast.property.name;
          return {
            name,
            origin: 'Math',
            type: 'Number',
            signature: variableSignature,
          };
        }
        switch (ast.property.name) {
          case 'r':
          case 'g':
          case 'b':
          case 'a':
            name = ast.object.name;
            return {
              name,
              property: ast.property.name,
                origin: 'user',
                signature: variableSignature,
                type: 'Number'
            };
          default:
            throw this.astErrorOutput('Unexpected expression', ast);
        }
        case 'this.constants.value':
          if (typeof ast.property.name !== 'string') {
            throw this.astErrorOutput('Unexpected expression', ast);
          }
          name = ast.property.name;
          type = this.getConstantType(name);
          if (!type) {
            throw this.astErrorOutput('Constant has no type', ast);
          }
          return {
            name,
            type,
            origin: 'constants',
              signature: variableSignature,
          };
        case 'this.constants.value[]':
          if (typeof ast.object.property.name !== 'string') {
            throw this.astErrorOutput('Unexpected expression', ast);
          }
          name = ast.object.property.name;
          type = this.getConstantType(name);
          if (!type) {
            throw this.astErrorOutput('Constant has no type', ast);
          }
          return {
            name,
            type,
            origin: 'constants',
              signature: variableSignature,
              xProperty: ast.property,
          };
        case 'this.constants.value[][]': {
          if (typeof ast.object.object.property.name !== 'string') {
            throw this.astErrorOutput('Unexpected expression', ast);
          }
          name = ast.object.object.property.name;
          type = this.getConstantType(name);
          if (!type) {
            throw this.astErrorOutput('Constant has no type', ast);
          }
          return {
            name,
            type,
            origin: 'constants',
            signature: variableSignature,
            yProperty: ast.object.property,
            xProperty: ast.property,
          };
        }
        case 'this.constants.value[][][]': {
          if (typeof ast.object.object.object.property.name !== 'string') {
            throw this.astErrorOutput('Unexpected expression', ast);
          }
          name = ast.object.object.object.property.name;
          type = this.getConstantType(name);
          if (!type) {
            throw this.astErrorOutput('Constant has no type', ast);
          }
          return {
            name,
            type,
            origin: 'constants',
            signature: variableSignature,
            zProperty: ast.object.object.property,
            yProperty: ast.object.property,
            xProperty: ast.property,
          };
        }
        case 'fn()[]':
        case '[][]':
          return {
            signature: variableSignature,
              property: ast.property,
          };
        default:
          throw this.astErrorOutput('Unexpected expression', ast);
    }
  }

  findIdentifierOrigin(astToFind) {
    const stack = [this.ast];

    while (stack.length > 0) {
      const atNode = stack[0];
      if (atNode.type === 'VariableDeclarator' && atNode.id && atNode.id.name && atNode.id.name === astToFind.name) {
        return atNode;
      }
      stack.shift();
      if (atNode.argument) {
        stack.push(atNode.argument);
      } else if (atNode.body) {
        stack.push(atNode.body);
      } else if (atNode.declarations) {
        stack.push(atNode.declarations);
      } else if (Array.isArray(atNode)) {
        for (let i = 0; i < atNode.length; i++) {
          stack.push(atNode[i]);
        }
      }
    }
    return null;
  }

  findLastReturn(ast) {
    const stack = [ast || this.ast];

    while (stack.length > 0) {
      const atNode = stack.pop();
      if (atNode.type === 'ReturnStatement') {
        return atNode;
      }
      if (atNode.argument) {
        stack.push(atNode.argument);
      } else if (atNode.body) {
        stack.push(atNode.body);
      } else if (atNode.declarations) {
        stack.push(atNode.declarations);
      } else if (Array.isArray(atNode)) {
        for (let i = 0; i < atNode.length; i++) {
          stack.push(atNode[i]);
        }
      } else if (atNode.consequent) {
        stack.push(atNode.consequent);
      }
    }
    return null;
  }

  getInternalVariableName(name) {
    if (!this._internalVariableNames.hasOwnProperty(name)) {
      this._internalVariableNames[name] = 0;
    }
    this._internalVariableNames[name]++;
    if (this._internalVariableNames[name] === 1) {
      return name;
    }
    return name + this._internalVariableNames[name];
  }

  varWarn() {
    console.warn('var declarations are deprecated, weird things happen when falling back to CPU because var scope differs in javascript than in most languages.  Use const or let');
  }
}

const typeLookupMap = {
  'Array': 'Number',
  'Array(2)': 'Number',
  'Array(3)': 'Number',
  'Array(4)': 'Number',
  'Array2D': 'Number',
  'Array3D': 'Number',
  'Input': 'Number',
  'HTMLImage': 'Array(4)',
  'HTMLImageArray': 'Array(4)',
  'NumberTexture': 'Number',
  'MemoryOptimizedNumberTexture': 'Number',
  'ArrayTexture(1)': 'Number',
  'ArrayTexture(2)': 'Array(2)',
  'ArrayTexture(3)': 'Array(3)',
  'ArrayTexture(4)': 'Array(4)',
};

module.exports = {
  FunctionNode
};
},{"../utils":70,"acorn":2}],11:[function(require,module,exports){
const { glWiretap } = require('gl-wiretap');
const { utils } = require('../../utils');
const { Texture } = require('../../texture');

function toStringWithoutUtils(fn) {
  return fn.toString()
    .replace(/^function /, '')
    .replace(/utils[.]/g, '/*utils.*/');
}

function glKernelString(Kernel, args, originKernel, setupContextString, destroyContextString) {
  const context = glWiretap(originKernel.context, {
    useTrackablePrimitives: true
  });
  const {
    source,
    canvas,
    output,
    pipeline,
    graphical,
    loopMaxIterations,
    constants,
    optimizeFloatMemory,
    precision,
    fixIntegerDivisionAccuracy,
    functions,
    nativeFunctions,
    subKernels,
    immutable,
  } = originKernel;
  const kernel = new Kernel(source, {
    canvas,
    context,
    output,
    pipeline,
    graphical,
    loopMaxIterations,
    constants,
    optimizeFloatMemory,
    precision,
    fixIntegerDivisionAccuracy,
    functions,
    nativeFunctions,
    subKernels,
    immutable,
  });
  let result = [];
  context.setIndent(2);
  kernel.build.apply(kernel, args);
  result.push(context.toString());
  context.reset();
  kernel.kernelArguments.forEach(kernelArgument => {
    context.insertVariable(`uploadValue_${kernelArgument.name}`, kernelArgument.uploadValue);
  });
  result.push('/** start of injected functions **/');
  result.push(`function ${toStringWithoutUtils(utils.flattenTo)}`);
  result.push(`function ${toStringWithoutUtils(utils.flatten2dArrayTo)}`);
  result.push(`function ${toStringWithoutUtils(utils.flatten3dArrayTo)}`);
  result.push(`function ${toStringWithoutUtils(utils.isArray)}`);
  if (kernel.renderOutput === kernel.renderTexture) {
    result.push(Texture.toString());
    result.push(
      `  const renderOutput = function ${
        toStringWithoutUtils(kernel.renderOutput.toString())
          .replace(`this.outputTexture`, 'null')
          .replace('this.texSize', `new Int32Array(${JSON.stringify(Array.from(kernel.texSize))})`)
          .replace('this.threadDim', `new Int32Array(${JSON.stringify(Array.from(kernel.threadDim))})`)
          .replace('this.output', `new Int32Array(${JSON.stringify(this.output)})`)
          .replace('this.context', 'gl')
          .replace('this.gpu', 'null')
          .replace('this.getReturnTextureType()', `'${kernel.getReturnTextureType()}'`)
      };`
    );
  } else {
    result.push(
      `  const renderOutput = function ${toStringWithoutUtils(kernel.renderOutput.toString())
        .replace('() {', '(pixels) {')
        .replace('    const pixels = this.readFloatPixelsToFloat32Array();\n', '')
        .replace('this.readPackedPixelsToFloat32Array()', 'new Float32Array(pixels.buffer)')
        .replace('this.output;', JSON.stringify(kernel.output) + ';')
        };`
    );
  }
  kernel.kernelArguments.forEach(kernelArgument => {
    kernelArgument.context = originKernel.context;
  });
  result.push('/** end of injected functions **/');
  result.push(`  return function (${kernel.kernelArguments.map(kernelArgument => kernelArgument.name).join(', ')}) {`);
  context.setIndent(4);
  kernel.run.apply(kernel, args);
  if (kernel.renderKernels) {
    kernel.renderKernels();
  } else if (kernel.renderOutput) {
    kernel.renderOutput();
  }
  result.push('/** start setup uploads for kernel values **/');
  kernel.kernelArguments.forEach(kernelArgument => {
    result.push(kernelArgument.getStringValueHandler());
  });
  result.push('/** end setup uploads for kernel values **/');
  result.push(context.toString());
  result.push(`    ${destroyContextString ? '\n' + destroyContextString + '    ': ''}return renderOutput(${context.getReadPixelsVariableName});`);
  result.push('  };');
  return `function kernel(context = null) {
  ${setupContextString ? setupContextString : ''}${result.join('\n')} }`;
}

module.exports = {
  glKernelString
};
},{"../../texture":69,"../../utils":70,"gl-wiretap":1}],12:[function(require,module,exports){
const { Kernel } = require('../kernel');
const { Texture } = require('../../texture');
const { utils } = require('../../utils');

class GLKernel extends Kernel {
  static get mode() {
    return 'gpu';
  }

  static getIsFloatRead() {
    const kernelString = `function kernelFunction() {
      return 1;
    }`;
    const kernel = new this(kernelString, {
      context: this.testContext,
      canvas: this.testCanvas,
      validate: false,
      output: [1],
      precision: 'single',
      returnType: 'Number'
    });
    kernel.build();
    kernel.run();
    const result = kernel.renderOutput();
    kernel.destroy(true);
    return result[0] === 1;
  }

  static getIsIntegerDivisionAccurate() {
    function kernelFunction(v1, v2) {
      return v1[this.thread.x] / v2[this.thread.x];
    }
    const kernel = new this(kernelFunction.toString(), {
      context: this.testContext,
      canvas: this.testCanvas,
      validate: false,
      output: [2],
      returnType: 'Number',
      precision: 'unsigned',
    });
    const args = [
      [6, 6030401],
      [3, 3991]
    ];
    kernel.build.apply(kernel, args);
    kernel.run.apply(kernel, args);
    const result = kernel.renderOutput();
    kernel.destroy(true);
    return result[0] === 2 && result[1] === 1511;
  }

  static get testCanvas() {
    throw new Error(`"testCanvas" not defined on ${ this.name }`);
  }

  static get testContext() {
    throw new Error(`"testContext" not defined on ${ this.name }`);
  }

  static get features() {
    throw new Error(`"features" not defined on ${ this.name }`);
  }

  static setupFeatureChecks() {
    throw new Error(`"setupFeatureChecks" not defined on ${ this.name }`);
  }

  setFixIntegerDivisionAccuracy(fix) {
    this.fixIntegerDivisionAccuracy = fix;
    return this;
  }

  setPrecision(flag) {
    this.precision = flag;
    return this;
  }

  setFloatTextures(flag) {
    utils.warnDeprecated('method', 'setFloatTextures', 'setOptimizeFloatMemory');
    this.floatTextures = flag;
    return this;
  }

  static nativeFunctionArguments(source) {
    const argumentTypes = [];
    const argumentNames = [];
    const states = [];
    const isStartingVariableName = /^[a-zA-Z_]/;
    const isVariableChar = /[a-zA-Z_0-9]/;
    let i = 0;
    let argumentName = null;
    let argumentType = null;
    while (i < source.length) {
      const char = source[i];
      const nextChar = source[i + 1];
      const state = states.length > 0 ? states[states.length - 1] : null;

      if (state === 'FUNCTION_ARGUMENTS' && char === '/' && nextChar === '*') {
        states.push('MULTI_LINE_COMMENT');
        i += 2;
        continue;
      } else if (state === 'MULTI_LINE_COMMENT' && char === '*' && nextChar === '/') {
        states.pop();
        i += 2;
        continue;
      }

      else if (state === 'FUNCTION_ARGUMENTS' && char === '/' && nextChar === '/') {
        states.push('COMMENT');
        i += 2;
        continue;
      } else if (state === 'COMMENT' && char === '\n') {
        states.pop();
        i++;
        continue;
      }

      else if (state === null && char === '(') {
        states.push('FUNCTION_ARGUMENTS');
        i++;
        continue;
      } else if (state === 'FUNCTION_ARGUMENTS') {
        if (char === ')') {
          states.pop();
          break;
        }
        if (char === 'f' && nextChar === 'l' && source[i + 2] === 'o' && source[i + 3] === 'a' && source[i + 4] === 't' && source[i + 5] === ' ') {
          states.push('DECLARE_VARIABLE');
          argumentType = 'float';
          argumentName = '';
          i += 6;
          continue;
        } else if (char === 'i' && nextChar === 'n' && source[i + 2] === 't' && source[i + 3] === ' ') {
          states.push('DECLARE_VARIABLE');
          argumentType = 'int';
          argumentName = '';
          i += 4;
          continue;
        } else if (char === 'v' && nextChar === 'e' && source[i + 2] === 'c' && source[i + 3] === '2' && source[i + 4] === ' ') {
          states.push('DECLARE_VARIABLE');
          argumentType = 'vec2';
          argumentName = '';
          i += 5;
          continue;
        } else if (char === 'v' && nextChar === 'e' && source[i + 2] === 'c' && source[i + 3] === '3' && source[i + 4] === ' ') {
          states.push('DECLARE_VARIABLE');
          argumentType = 'vec3';
          argumentName = '';
          i += 5;
          continue;
        } else if (char === 'v' && nextChar === 'e' && source[i + 2] === 'c' && source[i + 3] === '4' && source[i + 4] === ' ') {
          states.push('DECLARE_VARIABLE');
          argumentType = 'vec4';
          argumentName = '';
          i += 5;
          continue;
        }
      }

      else if (state === 'DECLARE_VARIABLE') {
        if (argumentName === '') {
          if (char === ' ') {
            i++;
            continue;
          }
          if (!isStartingVariableName.test(char)) {
            throw new Error('variable name is not expected string');
          }
        }
        argumentName += char;
        if (!isVariableChar.test(nextChar)) {
          states.pop();
          argumentNames.push(argumentName);
          argumentTypes.push(typeMap[argumentType]);
        }
      }

      i++;
    }
    if (states.length > 0) {
      throw new Error('GLSL function was not parsable');
    }
    return {
      argumentNames,
      argumentTypes,
    };
  }

  static nativeFunctionReturnType(source) {
    return typeMap[source.match(/int|float|vec[2-4]/)[0]];
  }

  static combineKernels(combinedKernel, lastKernel) {
    combinedKernel.apply(null, arguments);
    const {
      texSize,
      context,
      threadDim
    } = lastKernel.texSize;
    let result;
    if (lastKernel.precision === 'single') {
      const w = texSize[0];
      const h = Math.ceil(texSize[1] / 4);
      result = new Float32Array(w * h * 4 * 4);
      context.readPixels(0, 0, w, h * 4, context.RGBA, context.FLOAT, result);
    } else {
      const bytes = new Uint8Array(texSize[0] * texSize[1] * 4);
      context.readPixels(0, 0, texSize[0], texSize[1], context.RGBA, context.UNSIGNED_BYTE, bytes);
      result = new Float32Array(bytes.buffer);
    }

    result = result.subarray(0, threadDim[0] * threadDim[1] * threadDim[2]);

    if (lastKernel.output.length === 1) {
      return result;
    } else if (lastKernel.output.length === 2) {
      return utils.splitArray(result, lastKernel.output[0]);
    } else if (lastKernel.output.length === 3) {
      const cube = utils.splitArray(result, lastKernel.output[0] * lastKernel.output[1]);
      return cube.map(function(x) {
        return utils.splitArray(x, lastKernel.output[0]);
      });
    }
  }

  constructor(source, settings) {
    super(source, settings);
    this.renderOutput = null;
    this.renderRawOutput = null;
    this.texSize = null;
    this.fixIntegerDivisionAccuracy = null;
    this.translatedSource = null;
    this.renderStrategy = null;
    this.compiledFragmentShader = null;
    this.compiledVertexShader = null;
  }

  translateSource() {
    throw new Error(`"translateSource" not defined on ${this.constructor.name}`);
  }

  pickRenderStrategy(args) {
    if (this.graphical) return;
    if (this.precision === 'unsigned') {
      this.renderRawOutput = this.readPackedPixelsToUint8Array;
      switch (this.returnType) {
        case 'LiteralInteger':
        case 'Float':
        case 'Number':
        case 'Integer':
          if (this.pipeline) {
            this.renderStrategy = renderStrategy.PackedTexture;
            this.renderOutput = this.renderTexture;
            if (this.subKernels !== null) {
              this.renderKernels = this.renderKernelsToTextures;
            }
            return true;
          } else if (this.output[2] > 0) {
            this.renderStrategy = renderStrategy.PackedPixelTo3DFloat;
            this.renderOutput = this.render3DPackedFloat;
          } else if (this.output[1] > 0) {
            this.renderStrategy = renderStrategy.PackedPixelTo2DFloat;
            this.renderOutput = this.render2DPackedFloat;
          } else {
            this.renderStrategy = renderStrategy.PackedPixelToFloat;
            this.renderOutput = this.renderPackedFloat;
          }
          if (this.subKernels !== null) {
            this.renderKernels = this.renderKernelsToArrays;
          }
          return true;
        case 'Array(2)':
        case 'Array(3)':
        case 'Array(4)':
          this.onRequestFallback(args);
          return false;
      }
    } else if (this.precision === 'single') {
      this.renderRawOutput = this.readFloatPixelsToFloat32Array;
      if (this.pipeline) {
        this.renderStrategy = renderStrategy.FloatTexture;
        this.renderOutput = this.renderTexture;
        if (this.subKernels !== null) {
          this.renderKernels = this.renderKernelsToTextures;
        }
        return true;
      }
      switch (this.returnType) {
        case 'LiteralInteger':
        case 'Float':
        case 'Number':
        case 'Integer':
          if (this.output[2] > 0) {
            if (this.optimizeFloatMemory) {
              this.renderStrategy = renderStrategy.MemoryOptimizedFloatPixelToMemoryOptimized3DFloat;
              this.renderOutput = this.renderMemoryOptimized3DFloat;
            } else {
              this.renderStrategy = renderStrategy.FloatPixelTo3DFloat;
              this.renderOutput = this.render3DFloat;
            }
          } else if (this.output[1] > 0) {
            if (this.optimizeFloatMemory) {
              this.renderStrategy = renderStrategy.MemoryOptimizedFloatPixelToMemoryOptimized2DFloat;
              this.renderOutput = this.renderMemoryOptimized2DFloat;
            } else {
              this.renderStrategy = renderStrategy.FloatPixelTo2DFloat;
              this.renderOutput = this.render2DFloat;
            }
          } else {
            if (this.optimizeFloatMemory) {
              this.renderStrategy = renderStrategy.MemoryOptimizedFloatPixelToMemoryOptimizedFloat;
              this.renderOutput = this.renderMemoryOptimizedFloat;
            } else {
              this.renderStrategy = renderStrategy.FloatPixelToFloat;
              this.renderOutput = this.renderFloat;
            }
          }
          if (this.subKernels !== null) {
            this.renderKernels = this.renderKernelsToArrays;
          }
          return true;
        case 'Array(2)':
          if (this.output[2] > 0) {
            this.renderStrategy = renderStrategy.FloatPixelTo3DArray2;
            this.renderOutput = this.render3DArray2;
          } else if (this.output[1] > 0) {
            this.renderStrategy = renderStrategy.FloatPixelTo2DArray2;
            this.renderOutput = this.render2DArray2;
          } else {
            this.renderStrategy = renderStrategy.FloatPixelToArray2;
            this.renderOutput = this.renderArray2;
          }
          if (this.subKernels !== null) {
            this.renderKernels = this.renderKernelsToArrays;
          }
          return true;
        case 'Array(3)':
          if (this.output[2] > 0) {
            this.renderStrategy = renderStrategy.FloatPixelTo3DArray3;
            this.renderOutput = this.render3DArray3;
          } else if (this.output[1] > 0) {
            this.renderStrategy = renderStrategy.FloatPixelTo2DArray3;
            this.renderOutput = this.render2DArray3;
          } else {
            this.renderStrategy = renderStrategy.FloatPixelToArray3;
            this.renderOutput = this.renderArray3;
          }
          if (this.subKernels !== null) {
            this.renderKernels = this.renderKernelsToArrays;
          }
          return true;
        case 'Array(4)':
          if (this.output[2] > 0) {
            this.renderStrategy = renderStrategy.FloatPixelTo3DArray4;
            this.renderOutput = this.render3DArray4;
          } else if (this.output[1] > 0) {
            this.renderStrategy = renderStrategy.FloatPixelTo2DArray4;
            this.renderOutput = this.render2DArray4;
          } else {
            this.renderStrategy = renderStrategy.FloatPixelToArray4;
            this.renderOutput = this.renderArray4;
          }
          if (this.subKernels !== null) {
            this.renderKernels = this.renderKernelsToArrays;
          }
          return true;
      }
    } else {
      throw new Error(`unhandled precision of "${this.precision}"`);
    }

    throw new Error(`unhandled return type "${this.returnType}"`);
  }

  getKernelString() {
    throw new Error(`abstract method call`);
  }

  getMainResultTexture() {
    switch (this.returnType) {
      case 'LiteralInteger':
      case 'Float':
      case 'Integer':
      case 'Number':
        return this.getMainResultNumberTexture();
      case 'Array(2)':
        return this.getMainResultArray2Texture();
      case 'Array(3)':
        return this.getMainResultArray3Texture();
      case 'Array(4)':
        return this.getMainResultArray4Texture();
      default:
        throw new Error(`unhandled returnType type ${ this.returnType }`);
    }
  }

  getMainResultKernelNumberTexture() {
    throw new Error(`abstract method call`);
  }
  getMainResultSubKernelNumberTexture() {
    throw new Error(`abstract method call`);
  }
  getMainResultKernelArray2Texture() {
    throw new Error(`abstract method call`);
  }
  getMainResultSubKernelArray2Texture() {
    throw new Error(`abstract method call`);
  }
  getMainResultKernelArray3Texture() {
    throw new Error(`abstract method call`);
  }
  getMainResultSubKernelArray3Texture() {
    throw new Error(`abstract method call`);
  }
  getMainResultKernelArray4Texture() {
    throw new Error(`abstract method call`);
  }
  getMainResultSubKernelArray4Texture() {
    throw new Error(`abstract method call`);
  }
  getMainResultGraphical() {
    throw new Error(`abstract method call`);
  }
  getMainResultMemoryOptimizedFloats() {
    throw new Error(`abstract method call`);
  }
  getMainResultPackedPixels() {
    throw new Error(`abstract method call`);
  }

  getMainResultString() {
    if (this.graphical) {
      return this.getMainResultGraphical();
    } else if (this.precision === 'single') {
      if (this.optimizeFloatMemory) {
        return this.getMainResultMemoryOptimizedFloats();
      }
      return this.getMainResultTexture();
    } else {
      return this.getMainResultPackedPixels();
    }
  }

  getMainResultNumberTexture() {
    return utils.linesToString(this.getMainResultKernelNumberTexture()) +
      utils.linesToString(this.getMainResultSubKernelNumberTexture());
  }

  getMainResultArray2Texture() {
    return utils.linesToString(this.getMainResultKernelArray2Texture()) +
      utils.linesToString(this.getMainResultSubKernelArray2Texture());
  }

  getMainResultArray3Texture() {
    return utils.linesToString(this.getMainResultKernelArray3Texture()) +
      utils.linesToString(this.getMainResultSubKernelArray3Texture());
  }

  getMainResultArray4Texture() {
    return utils.linesToString(this.getMainResultKernelArray4Texture()) +
      utils.linesToString(this.getMainResultSubKernelArray4Texture());
  }

  getReturnTextureType() {
    if (this.graphical) {
      return 'ArrayTexture(4)';
    }
    if (this.precision === 'single') {
      switch (this.returnType) {
        case 'Float':
        case 'Number':
        case 'Integer':
          if (this.optimizeFloatMemory) {
            return 'MemoryOptimizedNumberTexture';
          } else {
            return 'ArrayTexture(1)';
          }
          case 'Array(2)':
            return 'ArrayTexture(2)';
          case 'Array(3)':
            return 'ArrayTexture(3)';
          case 'Array(4)':
            return 'ArrayTexture(4)';
          default:
            throw new Error(`unsupported returnType ${this.returnType}`);
      }
    } else {
      switch (this.returnType) {
        case 'Float':
        case 'Number':
        case 'Integer':
          return 'NumberTexture';
        case 'Array(2)':
        case 'Array(3)':
        case 'Array(4)':
        default:
          throw new Error(`unsupported returnType ${ this.returnType }`);
      }
    }
  }

  renderTexture() {
    return new Texture({
      texture: this.outputTexture,
      size: this.texSize,
      dimensions: this.threadDim,
      output: this.output,
      context: this.context,
      gpu: this.gpu,
      type: this.getReturnTextureType(),
    });
  }
  readPackedPixelsToUint8Array() {
    if (this.precision !== 'unsigned') throw new Error('Requires this.precision to be "unsigned"');
    const {
      texSize,
      context: gl
    } = this;
    const result = new Uint8Array(texSize[0] * texSize[1] * 4);
    gl.readPixels(0, 0, texSize[0], texSize[1], gl.RGBA, gl.UNSIGNED_BYTE, result);
    return result;
  }

  readPackedPixelsToFloat32Array() {
    return new Float32Array(this.readPackedPixelsToUint8Array().buffer);
  }

  readFloatPixelsToFloat32Array() {
    if (this.precision !== 'single') throw new Error('Requires this.precision to be "single"');
    const {
      texSize,
      context: gl
    } = this;
    const w = texSize[0];
    const h = texSize[1];
    const result = new Float32Array(w * h * 4);
    gl.readPixels(0, 0, w, h, gl.RGBA, gl.FLOAT, result);
    return result;
  }

  readMemoryOptimizedFloatPixelsToFloat32Array() {
    if (this.precision !== 'single') throw new Error('Requires this.precision to be "single"');
    const {
      texSize,
      context: gl
    } = this;
    const w = texSize[0];
    const h = texSize[1];
    const result = new Float32Array(w * h * 4);
    gl.readPixels(0, 0, w, h, gl.RGBA, gl.FLOAT, result);
    return result;
  }

  renderPackedFloat() {
    const [xMax] = this.output;
    return this.readPackedPixelsToFloat32Array().subarray(0, xMax);
  }

  render2DPackedFloat() {
    const pixels = this.readPackedPixelsToFloat32Array();
    const [xMax, yMax] = this.output;
    const yResults = new Array(yMax);
    for (let y = 0; y < yMax; y++) {
      const xStart = y * xMax;
      const xEnd = xStart + xMax;
      yResults[y] = pixels.subarray(xStart, xEnd);
    }
    return yResults;
  }

  render3DPackedFloat() {
    const pixels = this.readPackedPixelsToFloat32Array();
    const [xMax, yMax, zMax] = this.output;
    const zResults = new Array(zMax);
    for (let z = 0; z < zMax; z++) {
      const yResults = new Array(yMax);
      for (let y = 0; y < yMax; y++) {
        const xStart = (z * yMax * xMax) + y * xMax;
        const xEnd = xStart + xMax;
        yResults[y] = pixels.subarray(xStart, xEnd);
      }
      zResults[z] = yResults;
    }
    return zResults;
  }

  renderFloat() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax] = this.output;
    const xResults = new Float32Array(xMax);
    let i = 0;
    for (let x = 0; x < xMax; x++) {
      xResults[x] = pixels[i];
      i += 4;
    }
    return xResults;
  }

  renderMemoryOptimizedFloat() {
    const pixels = this.readMemoryOptimizedFloatPixelsToFloat32Array();
    const [xMax] = this.output;
    return pixels.subarray(0, xMax);
  }

  render2DFloat() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax] = this.output;
    const yResults = new Array(yMax);
    let i = 0;
    for (let y = 0; y < yMax; y++) {
      const xResults = new Float32Array(xMax);
      for (let x = 0; x < xMax; x++) {
        xResults[x] = pixels[i];
        i += 4;
      }
      yResults[y] = xResults;
    }
    return yResults;
  }

  renderMemoryOptimized2DFloat() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax] = this.output;
    const yResults = new Array(yMax);
    for (let y = 0; y < yMax; y++) {
      const offset = y * xMax;
      yResults[y] = pixels.subarray(offset, offset + xMax);
    }
    return yResults;
  }

  render3DFloat() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax, zMax] = this.output;
    const zResults = new Array(zMax);
    let i = 0;
    for (let z = 0; z < zMax; z++) {
      const yResults = new Array(yMax);
      for (let y = 0; y < yMax; y++) {
        const xResults = new Float32Array(xMax);
        for (let x = 0; x < xMax; x++) {
          xResults[x] = pixels[i];
          i += 4;
        }
        yResults[y] = xResults;
      }
      zResults[z] = yResults;
    }
    return zResults;
  }

  renderMemoryOptimized3DFloat() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax, zMax] = this.output;
    const zResults = new Array(zMax);
    for (let z = 0; z < zMax; z++) {
      const yResults = new Array(yMax);
      for (let y = 0; y < yMax; y++) {
        const offset = (z * yMax * xMax) + (y * xMax);
        yResults[y] = pixels.subarray(offset, offset + xMax);
      }
      zResults[z] = yResults;
    }
    return zResults;
  }

  renderArray2() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax] = this.output;
    const xResults = new Array(xMax);
    const xResultsMax = xMax * 4;
    let i = 0;
    for (let x = 0; x < xResultsMax; x += 4) {
      xResults[i++] = pixels.subarray(x, x + 2);
    }
    return xResults;
  }

  render2DArray2() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax] = this.output;
    const yResults = new Array(yMax);
    const XResultsMax = xMax * 4;
    for (let y = 0; y < yMax; y++) {
      const xResults = new Array(xMax);
      const offset = y * XResultsMax;
      let i = 0;
      for (let x = 0; x < XResultsMax; x += 4) {
        xResults[i++] = pixels.subarray(x + offset, x + offset + 2);
      }
      yResults[y] = xResults;
    }
    return yResults;
  }

  render3DArray2() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax, zMax] = this.output;
    const xResultsMax = xMax * 4;
    const zResults = new Array(zMax);
    for (let z = 0; z < zMax; z++) {
      const yResults = new Array(yMax);
      for (let y = 0; y < yMax; y++) {
        const xResults = new Array(xMax);
        const offset = (z * xResultsMax * yMax) + (y * xResultsMax);
        let i = 0;
        for (let x = 0; x < xResultsMax; x += 4) {
          xResults[i++] = pixels.subarray(x + offset, x + offset + 2);
        }
        yResults[y] = xResults;
      }
      zResults[z] = yResults;
    }
    return zResults;
  }

  renderArray3() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax] = this.output;
    const xResults = new Array(xMax);
    const xResultsMax = xMax * 4;
    let i = 0;
    for (let x = 0; x < xResultsMax; x += 4) {
      xResults[i++] = pixels.subarray(x, x + 3);
    }
    return xResults;
  }

  render2DArray3() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax] = this.output;
    const xResultsMax = xMax * 4;
    const yResults = new Array(yMax);
    for (let y = 0; y < yMax; y++) {
      const xResults = new Array(xMax);
      const offset = y * xResultsMax;
      let i = 0;
      for (let x = 0; x < xResultsMax; x += 4) {
        xResults[i++] = pixels.subarray(x + offset, x + offset + 3);
      }
      yResults[y] = xResults;
    }
    return yResults;
  }

  render3DArray3() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax, zMax] = this.output;
    const xResultsMax = xMax * 4;
    const zResults = new Array(zMax);
    for (let z = 0; z < zMax; z++) {
      const yResults = new Array(yMax);
      for (let y = 0; y < yMax; y++) {
        const xResults = new Array(xMax);
        const offset = (z * xResultsMax * yMax) + (y * xResultsMax);
        let i = 0;
        for (let x = 0; x < xResultsMax; x += 4) {
          xResults[i++] = pixels.subarray(x + offset, x + offset + 3);
        }
        yResults[y] = xResults;
      }
      zResults[z] = yResults;
    }
    return zResults;
  }

  renderArray4() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax] = this.output;
    const xResults = new Array(xMax);
    const xResultsMax = xMax * 4;
    let i = 0;
    for (let x = 0; x < xResultsMax; x += 4) {
      xResults[i++] = pixels.subarray(x, x + 4);
    }
    return xResults;
  }

  render2DArray4() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax] = this.output;
    const xResultsMax = xMax * 4;
    const yResults = new Array(yMax);
    for (let y = 0; y < yMax; y++) {
      const xResults = new Array(xMax);
      const offset = y * xResultsMax;
      let i = 0;
      for (let x = 0; x < xResultsMax; x += 4) {
        xResults[i++] = pixels.subarray(x + offset, x + offset + 4);
      }
      yResults[y] = xResults;
    }
    return yResults;
  }

  render3DArray4() {
    const pixels = this.readFloatPixelsToFloat32Array();
    const [xMax, yMax, zMax] = this.output;
    const xResultsMax = xMax * 4;
    const zResults = new Array(zMax);
    for (let z = 0; z < zMax; z++) {
      const yResults = new Array(yMax);
      for (let y = 0; y < yMax; y++) {
        const xResults = new Array(xMax);
        const offset = (z * xResultsMax * yMax) + (y * xResultsMax);
        let i = 0;
        for (let x = 0; x < xResultsMax; x += 4) {
          xResults[i++] = pixels.subarray(x + offset, x + offset + 4);
        }
        yResults[y] = xResults;
      }
      zResults[z] = yResults;
    }
    return zResults;
  }

  getPixels(flip) {
    const {
      context: gl,
      output
    } = this;
    const [width, height] = output;
    const pixels = new Uint8Array(width * height * 4);
    gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, pixels);
    return flip ? pixels : utils.flipPixels(pixels, width, height);
  }

  renderKernelsToArrays() {
    const result = {
      result: this.renderOutput(),
    };
    const type = this.getReturnTextureType();
    for (let i = 0; i < this.subKernels.length; i++) {
      result[this.subKernels[i].property] = new Texture({
        texture: this.subKernelOutputTextures[i],
        size: this.texSize,
        dimensions: this.threadDim,
        output: this.output,
        context: this.context,
        gpu: this.gpu,
        type,
      }).toArray();
    }
    return result;
  }

  renderKernelsToTextures() {
    const result = {
      result: this.renderOutput(),
    };
    const type = this.getReturnTextureType();
    for (let i = 0; i < this.subKernels.length; i++) {
      result[this.subKernels[i].property] = new Texture({
        texture: this.subKernelOutputTextures[i],
        size: this.texSize,
        dimensions: this.threadDim,
        output: this.output,
        context: this.context,
        gpu: this.gpu,
        type,
      });
    }
    return result;
  }

  setOutput(output) {
    super.setOutput(output);
    if (this.program) {
      this.threadDim = [this.output[0], this.output[1] || 1, this.output[2] || 1];
      this.texSize = utils.dimToTexSize({
        floatTextures: this.optimizeFloatMemory,
        floatOutput: this.precision === 'single',
      }, this.threadDim, true);
      const { context: gl } = this;
      gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);
      this.updateMaxTexSize();
      this.framebuffer.width = this.texSize[0];
      this.framebuffer.height = this.texSize[1];
      this.context.viewport(0, 0, this.maxTexSize[0], this.maxTexSize[1]);
      this.canvas.width = this.maxTexSize[0];
      this.canvas.height = this.maxTexSize[1];
      this._setupOutputTexture();
      if (this.subKernels && this.subKernels.length > 0) {
        this._setupSubOutputTextures();
      }
    }
    return this;
  }
}

const renderStrategy = Object.freeze({
  PackedPixelToUint8Array: Symbol('PackedPixelToUint8Array'),
  PackedPixelToFloat: Symbol('PackedPixelToFloat'),
  PackedPixelTo2DFloat: Symbol('PackedPixelTo2DFloat'),
  PackedPixelTo3DFloat: Symbol('PackedPixelTo3DFloat'),
  PackedTexture: Symbol('PackedTexture'),
  FloatPixelToFloat32Array: Symbol('FloatPixelToFloat32Array'),
  FloatPixelToFloat: Symbol('FloatPixelToFloat'),
  FloatPixelTo2DFloat: Symbol('FloatPixelTo2DFloat'),
  FloatPixelTo3DFloat: Symbol('FloatPixelTo3DFloat'),
  FloatPixelToArray2: Symbol('FloatPixelToArray2'),
  FloatPixelTo2DArray2: Symbol('FloatPixelTo2DArray2'),
  FloatPixelTo3DArray2: Symbol('FloatPixelTo3DArray2'),
  FloatPixelToArray3: Symbol('FloatPixelToArray3'),
  FloatPixelTo2DArray3: Symbol('FloatPixelTo2DArray3'),
  FloatPixelTo3DArray3: Symbol('FloatPixelTo3DArray3'),
  FloatPixelToArray4: Symbol('FloatPixelToArray4'),
  FloatPixelTo2DArray4: Symbol('FloatPixelTo2DArray4'),
  FloatPixelTo3DArray4: Symbol('FloatPixelTo3DArray4'),
  FloatTexture: Symbol('FloatTexture'),
  MemoryOptimizedFloatPixelToMemoryOptimizedFloat: Symbol('MemoryOptimizedFloatPixelToFloat'),
  MemoryOptimizedFloatPixelToMemoryOptimized2DFloat: Symbol('MemoryOptimizedFloatPixelTo2DFloat'),
  MemoryOptimizedFloatPixelToMemoryOptimized3DFloat: Symbol('MemoryOptimizedFloatPixelTo3DFloat'),
});

const typeMap = {
  int: 'Integer',
  float: 'Number',
  vec2: 'Array(2)',
  vec3: 'Array(3)',
  vec4: 'Array(4)',
};

module.exports = {
  GLKernel,
  renderStrategy
};
},{"../../texture":69,"../../utils":70,"../kernel":15}],13:[function(require,module,exports){
const getContext = require('gl');
const { WebGLKernel } = require('../web-gl/kernel');
const { glKernelString } = require('../gl/kernel-string');

let isSupported = null;
let testCanvas = null;
let testContext = null;
let testExtensions = null;
let features = null;

class HeadlessGLKernel extends WebGLKernel {
  static get isSupported() {
    if (isSupported !== null) return isSupported;
    this.setupFeatureChecks();
    isSupported = testContext !== null;
    return isSupported;
  }

  static setupFeatureChecks() {
    testCanvas = null;
    testExtensions = null;
    if (typeof getContext !== 'function') return;
    try { 
      testContext = getContext(2, 2, {
        preserveDrawingBuffer: true
      });
      if (!testContext || !testContext.getExtension) return;
      testExtensions = {
        STACKGL_resize_drawingbuffer: testContext.getExtension('STACKGL_resize_drawingbuffer'),
        STACKGL_destroy_context: testContext.getExtension('STACKGL_destroy_context'),
        OES_texture_float: testContext.getExtension('OES_texture_float'),
        OES_texture_float_linear: testContext.getExtension('OES_texture_float_linear'),
        OES_element_index_uint: testContext.getExtension('OES_element_index_uint'),
        WEBGL_draw_buffers: testContext.getExtension('WEBGL_draw_buffers'),
      };
      features = this.getFeatures();
    } catch (e) {}
  }

  static isContextMatch(context) {
    try {
      return context.getParameter(context.RENDERER) === 'ANGLE';
    } catch (e) {
      return false;
    }
  }

  static getFeatures() {
    const isDrawBuffers = this.getIsDrawBuffers();
    return Object.freeze({
      isFloatRead: this.getIsFloatRead(),
      isIntegerDivisionAccurate: this.getIsIntegerDivisionAccurate(),
      isTextureFloat: this.getIsTextureFloat(),
      isDrawBuffers,
      kernelMap: isDrawBuffers
    });
  }

  static getIsTextureFloat() {
    return Boolean(testExtensions.OES_texture_float);
  }

  static getIsDrawBuffers() {
    return Boolean(testExtensions.WEBGL_draw_buffers);
  }

  static get testCanvas() {
    return testCanvas;
  }

  static get testContext() {
    return testContext;
  }

  static get features() {
    return features;
  }

  initCanvas() {
    return {};
  }

  initContext() {
    const context = getContext(2, 2, {
      preserveDrawingBuffer: true
    });
    return context;
  }

  initExtensions() {
    this.extensions = {
      STACKGL_resize_drawingbuffer: this.context.getExtension('STACKGL_resize_drawingbuffer'),
      STACKGL_destroy_context: this.context.getExtension('STACKGL_destroy_context'),
      OES_texture_float: this.context.getExtension('OES_texture_float'),
      OES_texture_float_linear: this.context.getExtension('OES_texture_float_linear'),
      OES_element_index_uint: this.context.getExtension('OES_element_index_uint'),
      WEBGL_draw_buffers: this.context.getExtension('WEBGL_draw_buffers'),
    };
  }

  destroyExtensions() {
    this.extensions.STACKGL_resize_drawingbuffer = null;
    this.extensions.STACKGL_destroy_context = null;
    this.extensions.OES_texture_float = null;
    this.extensions.OES_texture_float_linear = null;
    this.extensions.OES_element_index_uint = null;
    this.extensions.WEBGL_draw_buffers = null;
  }

  static destroyContext(context) {
    const extension = context.getExtension('STACKGL_destroy_context');
    if (extension && extension.destroy) {
      extension.destroy();
    }
  }

  toString() {
    const setupContextString = `const gl = context || require('gl')(1, 1);\n`;
    const destroyContextString = `if (!context) { gl.getExtension('STACKGL_destroy_context').destroy(); }\n`;
    return glKernelString(this.constructor, arguments, this, setupContextString, destroyContextString);
  }

  setOutput(output) {
    super.setOutput(output);
    if (this.graphical) {
      const { context: gl } = this;
      const [width, height] = this.output;
      (this.extensions.STACKGL_resize_drawingbuffer || gl.getExtension('STACKGL_resize_drawingbuffer')).resize(width, height);
    }
  }
}

module.exports = {
  HeadlessGLKernel
};

},{"../gl/kernel-string":11,"../web-gl/kernel":37,"gl":3}],14:[function(require,module,exports){
const { utils } = require('../utils');

class KernelValue {
  constructor(value, settings) {
    const {
      name,
      kernel,
      context,
      onRequestContextHandle,
      onUpdateValueMismatch,
      origin,
      strictIntegers,
    } = settings;
    if (!name) {
      throw new Error('name not set');
    }
    if (!origin) {
      throw new Error('origin not set');
    }
    if (origin !== 'user' && origin !== 'constants') {
      throw new Error(`origin must be "user" or "constants" value is "${ origin }"`);
    }
    if (!onRequestContextHandle) {
      throw new Error('onRequestContextHandle is not set');
    }
    this.name = name;
    this.origin = origin;
    this.id = `${this.origin}_${name}`;
    this.kernel = kernel;
    this.strictIntegers = strictIntegers;
    this.type = utils.getVariableType(value, strictIntegers);
    this.size = value.size || null;
    this.index = null;
    this.context = context;
    this.contextHandle = null;
    this.onRequestContextHandle = onRequestContextHandle;
    this.onUpdateValueMismatch = onUpdateValueMismatch;
  }

  getSource() {
    throw new Error(`"getSource" not defined on ${ this.constructor.name }`);
  }

  updateValue(value) {
    throw new Error(`"updateValue" not defined on ${ this.constructor.name }`);
  }
}

module.exports = {
  KernelValue
};
},{"../utils":70}],15:[function(require,module,exports){
const { utils } = require('../utils');
const { Input } = require('../input');

class Kernel {
  static get isSupported() {
    throw new Error(`"isSupported" not implemented on ${ this.name }`);
  }

  static isContextMatch(context) {
    throw new Error(`"isContextMatch" not implemented on ${ this.name }`);
  }

  static getFeatures() {
    throw new Error(`"getFeatures" not implemented on ${ this.name }`);
  }

  static destroyContext(context) {
    throw new Error(`"destroyContext" called on ${ this.name }`);
  }

  static nativeFunctionArguments() {
    throw new Error(`"nativeFunctionArguments" called on ${ this.name }`);
  }

  static nativeFunctionReturnType() {
    throw new Error(`"nativeFunctionReturnType" called on ${ this.name }`);
  }

  static combineKernels() {
    throw new Error(`"combineKernels" called on ${ this.name }`);
  }

  constructor(source, settings) {
    if (typeof source !== 'object') {
      if (typeof source !== 'string') {
        throw new Error('source not a string');
      }
      if (!utils.isFunctionString(source)) {
        throw new Error('source not a function string');
      }
    }

    this.onRequestFallback = null;

    this.argumentNames = typeof source === 'string' ? utils.getArgumentNamesFromString(source) : null;
    this.argumentTypes = null;
    this.argumentSizes = null;
    this.argumentBitRatios = null;
    this.kernelArguments = null;
    this.kernelConstants = null;


    this.source = source;

    this.output = null;

    this.debug = false;

    this.graphical = false;

    this.loopMaxIterations = 0;

    this.constants = null;
    this.constantTypes = null;
    this.constantBitRatios = null;
    this.dynamicArguments = false;
    this.dynamicOutput = true;

    this.canvas = null;

    this.context = null;

    this.gpu = null;

    this.functions = null;

    this.nativeFunctions = null;

    this.subKernels = null;

    this.validate = true;

    this.immutable = false;

    this.pipeline = false;

    this.precision = null;

    this.plugins = null;

    this.returnType = null;
    this.leadingReturnStatement = null;
    this.followingReturnStatement = null;
    this.optimizeFloatMemory = null;
    this.strictIntegers = false;
  }

  mergeSettings(settings) {
    for (let p in settings) {
      if (!settings.hasOwnProperty(p) || !this.hasOwnProperty(p)) continue;
      switch (p) {
        case 'output':
          if (!Array.isArray(settings.output)) {
            this.setOutput(settings.output); 
            continue;
          }
          break;
        case 'functions':
          if (typeof settings.functions[0] === 'function') {
            this.functions = settings.functions.map(source => utils.functionToIFunction(source));
            continue;
          }
          break;
        case 'graphical':
          if (settings[p] && !settings.hasOwnProperty('precision')) {
            this.precision = 'unsigned';
          }
          this[p] = settings[p];
          continue;
      }
      this[p] = settings[p];
    }

    if (!this.canvas) this.canvas = this.initCanvas();
    if (!this.context) this.context = this.initContext();
    if (!this.plugins) this.plugins = this.initPlugins(settings);
  }
  build() {
    throw new Error(`"build" not defined on ${ this.constructor.name }`);
  }

  run() {
    throw new Error(`"run" not defined on ${ this.constructor.name }`)
  }

  initCanvas() {
    throw new Error(`"initCanvas" not defined on ${ this.constructor.name }`);
  }

  initContext() {
    throw new Error(`"initContext" not defined on ${ this.constructor.name }`);
  }

  initPlugins(settings) {
    throw new Error(`"initPlugins" not defined on ${ this.constructor.name }`);
  }

  setupArguments(args) {
    if (!this.argumentTypes) {
      this.kernelArguments = [];
      this.argumentTypes = [];
      for (let i = 0; i < args.length; i++) {
        const argType = utils.getVariableType(args[i], this.strictIntegers);
        this.argumentTypes.push(argType === 'Integer' ? 'Number' : argType);
      }
    }

    this.argumentSizes = new Array(args.length);
    this.argumentBitRatios = new Int32Array(args.length);

    for (let i = 0; i < args.length; i++) {
      const arg = args[i];
      this.argumentSizes[i] = arg.constructor === Input ? arg.size : null;
      this.argumentBitRatios[i] = this.getBitRatio(arg);
    }

    if (this.argumentNames.length !== args.length) {
      throw new Error(`arguments are miss-aligned`);
    }
  }

  setupConstants() {
    this.kernelConstants = [];
    this.constantTypes = {};
    this.constantBitRatios = {};
    if (this.constants) {
      for (let p in this.constants) {
        this.constantTypes[p] = utils.getVariableType(this.constants[p], this.strictIntegers);
        this.constantBitRatios[p] = this.getBitRatio(this.constants[p]);
      }
    }
  }

  setOptimizeFloatMemory(flag) {
    this.optimizeFloatMemory = flag;
    return this;
  }

  setOutput(output) {
    if (output.hasOwnProperty('x')) {
      if (output.hasOwnProperty('y')) {
        if (output.hasOwnProperty('z')) {
          this.output = [output.x, output.y, output.z];
        } else {
          this.output = [output.x, output.y];
        }
      } else {
        this.output = [output.x];
      }
    } else {
      this.output = output;
    }
    return this;
  }

  setDebug(flag) {
    this.debug = flag;
    return this;
  }

  setGraphical(flag) {
    this.graphical = flag;
    this.precision = 'unsigned';
    return this;
  }

  setLoopMaxIterations(max) {
    this.loopMaxIterations = max;
    return this;
  }

  setConstants(constants) {
    this.constants = constants;
    return this;
  }

  setFunctions(functions) {
    if (typeof functions[0] === 'function') {
      this.functions = functions.map(source => utils.functionToIFunction(source));
    } else {
      this.functions = functions;
    }
    return this;
  }

  setPipeline(flag) {
    this.pipeline = flag;
    return this;
  }

  setPrecision(flag) {
    this.precision = flag;
    return this;
  }

  setOutputToTexture(flag) {
    utils.warnDeprecated('method', 'setOutputToTexture', 'setPipeline');
    this.pipeline = flag;
    return this;
  }

  setImmutable(flag) {
    this.immutable = flag;
    return this;
  }

  setCanvas(canvas) {
    this.canvas = canvas;
    return this;
  }

  setStrictIntegers(flag) {
    this.strictIntegers = flag;
    return this;
  }

  setDynamicOutput(flag) {
    this.dynamicOutput = flag;
    return this;
  }

  setHardcodeConstants(flag) {
    utils.warnDeprecated('method', 'setHardcodeConstants');
    this.setDynamicOutput(flag);
    this.setDynamicArguments(flag);
    return this;
  }

  setDynamicArguments(flag) {
    this.dynamicArguments = flag;
    return this;
  }

  getCanvas() {
    utils.warnDeprecated('method', 'getCanvas');
    return this.canvas;
  }

  getWebGl() {
    utils.warnDeprecated('method', 'getWebGl');
    return this.context;
  }

  setContext(context) {
    this.context = context;
    return this;
  }

  setArgumentTypes(argumentTypes) {
    this.argumentTypes = argumentTypes;
    return this;
  }

  requestFallback(args) {
    if (!this.onRequestFallback) {
      throw new Error(`"onRequestFallback" not defined on ${ this.constructor.name }`);
    }
    return this.onRequestFallback(args);
  }

  validateSettings() {
    throw new Error(`"validateSettings" not defined on ${ this.constructor.name }`);
  }

  addSubKernel(subKernel) {
    if (this.subKernels === null) {
      this.subKernels = [];
    }
    if (!subKernel.source) throw new Error('subKernel missing "source" property');
    if (!subKernel.property && isNaN(subKernel.property)) throw new Error('subKernel missing "property" property');
    if (!subKernel.name) throw new Error('subKernel missing "name" property');
    this.subKernels.push(subKernel);
    return this;
  }

  destroy(removeCanvasReferences) {
    throw new Error(`"destroy" called on ${ this.constructor.name }`);
  }

  getBitRatio(value) {
    if (this.precision === 'single') {
      return 4;
    } else if (Array.isArray(value[0])) {
      return this.getBitRatio(value[0]);
    } else if (value.constructor === Input) {
      return this.getBitRatio(value.value);
    }
    switch (value.constructor) {
      case Uint8Array:
      case Int8Array:
        return 1;
      case Uint16Array:
      case Int16Array:
        return 2;
      case Float32Array:
      case Int32Array:
      default:
        return 4;
    }
  }

  getPixels() {
    throw new Error(`"getPixels" called on ${ this.constructor.name }`);
  }

  checkOutput() {
    if (!this.output || !utils.isArray(this.output)) throw new Error('kernel.output not an array');
    if (this.output.length < 1) throw new Error('kernel.output is empty, needs at least 1 value');
    for (let i = 0; i < this.output.length; i++) {
      if (isNaN(this.output[i]) || this.output[i] < 1) {
        throw new Error(`${ this.constructor.name }.output[${ i }] incorrectly defined as \`${ this.output[i] }\`, needs to be numeric, and greater than 0`);
      }
    }
  }

  toJSON() {
    const settings = {
      output: this.output,
      threadDim: this.threadDim,
      pipeline: this.pipeline,
      argumentNames: this.argumentNames,
      argumentsTypes: this.argumentTypes,
      constants: this.constants,
      pluginNames: this.plugins ? this.plugins.map(plugin => plugin.name) : null,
      returnType: this.returnType,
    };
    return {
      settings
    };
  }
}

module.exports = {
  Kernel
};
},{"../input":66,"../utils":70}],16:[function(require,module,exports){
const fragmentShader = `__HEADER__;
precision highp float;
precision highp int;
precision highp sampler2D;

const int LOOP_MAX = __LOOP_MAX__;

__PLUGINS__;
__CONSTANTS__;

varying vec2 vTexCoord;

vec4 round(vec4 x) {
  return floor(x + 0.5);
}

float round(float x) {
  return floor(x + 0.5);
}

vec2 integerMod(vec2 x, float y) {
  vec2 res = floor(mod(x, y));
  return res * step(1.0 - floor(y), -res);
}

vec3 integerMod(vec3 x, float y) {
  vec3 res = floor(mod(x, y));
  return res * step(1.0 - floor(y), -res);
}

vec4 integerMod(vec4 x, vec4 y) {
  vec4 res = floor(mod(x, y));
  return res * step(1.0 - floor(y), -res);
}

float integerMod(float x, float y) {
  float res = floor(mod(x, y));
  return res * (res > floor(y) - 1.0 ? 0.0 : 1.0);
}

int integerMod(int x, int y) {
  return x - (y * int(x / y));
}

__DIVIDE_WITH_INTEGER_CHECK__;

// Here be dragons!
// DO NOT OPTIMIZE THIS CODE
// YOU WILL BREAK SOMETHING ON SOMEBODY\'S MACHINE
// LEAVE IT AS IT IS, LEST YOU WASTE YOUR OWN TIME
const vec2 MAGIC_VEC = vec2(1.0, -256.0);
const vec4 SCALE_FACTOR = vec4(1.0, 256.0, 65536.0, 0.0);
const vec4 SCALE_FACTOR_INV = vec4(1.0, 0.00390625, 0.0000152587890625, 0.0); // 1, 1/256, 1/65536
float decode32(vec4 texel) {
  __DECODE32_ENDIANNESS__;
  texel *= 255.0;
  vec2 gte128;
  gte128.x = texel.b >= 128.0 ? 1.0 : 0.0;
  gte128.y = texel.a >= 128.0 ? 1.0 : 0.0;
  float exponent = 2.0 * texel.a - 127.0 + dot(gte128, MAGIC_VEC);
  float res = exp2(round(exponent));
  texel.b = texel.b - 128.0 * gte128.x;
  res = dot(texel, SCALE_FACTOR) * exp2(round(exponent-23.0)) + res;
  res *= gte128.y * -2.0 + 1.0;
  return res;
}

float decode16(vec4 texel, int index) {
  int channel = integerMod(index, 2);
  if (channel == 0) return texel.r * 255.0 + texel.g * 65280.0;
  if (channel == 1) return texel.b * 255.0 + texel.a * 65280.0;
  return 0.0;
}

float decode8(vec4 texel, int index) {
  int channel = integerMod(index, 4);
  if (channel == 0) return texel.r * 255.0;
  if (channel == 1) return texel.g * 255.0;
  if (channel == 2) return texel.b * 255.0;
  if (channel == 3) return texel.a * 255.0;
  return 0.0;
}

vec4 encode32(float f) {
  float F = abs(f);
  float sign = f < 0.0 ? 1.0 : 0.0;
  float exponent = floor(log2(F));
  float mantissa = (exp2(-exponent) * F);
  // exponent += floor(log2(mantissa));
  vec4 texel = vec4(F * exp2(23.0-exponent)) * SCALE_FACTOR_INV;
  texel.rg = integerMod(texel.rg, 256.0);
  texel.b = integerMod(texel.b, 128.0);
  texel.a = exponent*0.5 + 63.5;
  texel.ba += vec2(integerMod(exponent+127.0, 2.0), sign) * 128.0;
  texel = floor(texel);
  texel *= 0.003921569; // 1/255
  __ENCODE32_ENDIANNESS__;
  return texel;
}
// Dragons end here

int index;
ivec3 threadId;

ivec3 indexTo3D(int idx, ivec3 texDim) {
  int z = int(idx / (texDim.x * texDim.y));
  idx -= z * int(texDim.x * texDim.y);
  int y = int(idx / texDim.x);
  int x = int(integerMod(idx, texDim.x));
  return ivec3(x, y, z);
}

float get32(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + texDim.x * (xyz.y + texDim.y * xyz.z);
  int w = texSize.x;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  vec4 texel = texture2D(tex, st / vec2(texSize));
  return decode32(texel);
}

float get16(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + texDim.x * (xyz.y + texDim.y * xyz.z);
  int w = texSize.x * 2;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  vec4 texel = texture2D(tex, st / vec2(texSize.x * 2, texSize.y));
  return decode16(texel, index);
}

float get8(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + texDim.x * (xyz.y + texDim.y * xyz.z);
  int w = texSize.x * 4;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  vec4 texel = texture2D(tex, st / vec2(texSize.x * 4, texSize.y));
  return decode8(texel, index);
}

float getMemoryOptimized32(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + texDim.x * (xyz.y + texDim.y * xyz.z);
  int channel = integerMod(index, 4);
  index = index / 4;
  int w = texSize.x;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  vec4 texel = texture2D(tex, st / vec2(texSize));
  if (channel == 0) return texel.r;
  if (channel == 1) return texel.g;
  if (channel == 2) return texel.b;
  if (channel == 3) return texel.a;
  return 0.0;
}

vec4 getImage2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + texDim.x * (xyz.y + texDim.y * xyz.z);
  int w = texSize.x;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  return texture2D(tex, st / vec2(texSize));
}

float getFloatFromSampler2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  vec4 result = getImage2D(tex, texSize, texDim, z, y, x);
  return result[0];
}

vec2 getVec2FromSampler2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  vec4 result = getImage2D(tex, texSize, texDim, z, y, x);
  return vec2(result[0], result[1]);
}

vec3 getVec3FromSampler2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  vec4 result = getImage2D(tex, texSize, texDim, z, y, x);
  return vec3(result[0], result[1], result[2]);
}

vec4 getVec4FromSampler2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  return getImage2D(tex, texSize, texDim, z, y, x);
}

vec4 actualColor;
void color(float r, float g, float b, float a) {
  actualColor = vec4(r,g,b,a);
}

void color(float r, float g, float b) {
  color(r,g,b,1.0);
}

void color(sampler2D image) {
  actualColor = texture2D(image, vTexCoord);
}

__MAIN_CONSTANTS__;
__MAIN_ARGUMENTS__;
__KERNEL__;

void main(void) {
  index = int(vTexCoord.s * float(uTexSize.x)) + int(vTexCoord.t * float(uTexSize.y)) * uTexSize.x;
  __MAIN_RESULT__;
}`;

module.exports = {
  fragmentShader
};
},{}],17:[function(require,module,exports){
const { FunctionNode } = require('../function-node');
const jsMathPrefix = 'Math.';
const localPrefix = 'this.';

class WebGLFunctionNode extends FunctionNode {
  constructor(source, settings) {
    super(source, settings);
    this.fixIntegerDivisionAccuracy = null;
    if (settings && settings.hasOwnProperty('fixIntegerDivisionAccuracy')) {
      this.fixIntegerDivisionAccuracy = settings.fixIntegerDivisionAccuracy;
    }
  }

  astFunctionExpression(ast, retArr) {
    if (this.isRootKernel) {
      retArr.push('void');
    } else {
      if (!this.returnType) {
        const lastReturn = this.findLastReturn();
        if (lastReturn) {
          this.returnType = this.getType(ast.body);
          if (this.returnType === 'LiteralInteger') {
            this.returnType = 'Number';
          }
        }
      }

      const { returnType } = this;
      if (!returnType) {
        retArr.push('void');
      } else {
        const type = typeMap[returnType];
        if (!type) {
          throw new Error(`unknown type ${returnType}`);
        }
        retArr.push(type);
      }
    }
    retArr.push(' ');
    retArr.push(this.name);
    retArr.push('(');

    if (!this.isRootKernel) {
      for (let i = 0; i < this.argumentNames.length; ++i) {
        const argumentName = this.argumentNames[i];

        if (i > 0) {
          retArr.push(', ');
        }
        let argumentType = this.getVariableType(argumentName);
        if (!argumentType || argumentType === 'LiteralInteger') {
          argumentType = 'Number';
        }
        const type = typeMap[argumentType];
        if (!type) {
          throw this.astErrorOutput('Unexpected expression', ast);
        }
        retArr.push(type);
        retArr.push(' ');
        retArr.push('user_');
        retArr.push(argumentName);
      }
    }

    retArr.push(') {\n');

    for (let i = 0; i < ast.body.body.length; ++i) {
      this.astGeneric(ast.body.body[i], retArr);
      retArr.push('\n');
    }

    retArr.push('}\n');
    return retArr;
  }

  astReturnStatement(ast, retArr) {
    if (!ast.argument) throw this.astErrorOutput('Unexpected return statement', ast);
    const type = this.getType(ast.argument);

    const result = [];

    if (!this.returnType) {
      if (this.isRootKernel) {
        this.returnType = 'Number';
      } else {
        this.returnType = type;
      }
    }

    switch (this.returnType) {
      case 'LiteralInteger':
      case 'Number':
      case 'Float':
        switch (type) {
          case 'Integer':
            result.push('float(');
            this.astGeneric(ast.argument, result);
            result.push(')');
            break;
          case 'LiteralInteger':
            this.pushState('casting-to-float');
            this.astGeneric(ast.argument, result);
            this.popState('casting-to-float');

            if (this.getType(ast) === 'Integer') {
              result.unshift('float(');
              result.push(')');
            }
            break;
          default:
            this.astGeneric(ast.argument, result);
        }
        break;
      case 'Integer':
        switch (type) {
          case 'Float':
          case 'Number':
            this.pushState('casting-to-integer');
            result.push('int(');
            this.astGeneric(ast.argument, result);
            result.push(')');
            this.popState('casting-to-integer');
            break;
          case 'LiteralInteger':
            this.pushState('casting-to-integer');
            this.astGeneric(ast.argument, result);
            this.popState('casting-to-integer');
            break;
          default:
            this.astGeneric(ast.argument, result);
        }
        break;
      case 'Array(4)':
      case 'Array(3)':
      case 'Array(2)':
      case 'Input':
        this.astGeneric(ast.argument, result);
        break;
      default:
        throw this.astErrorOutput(`unhandled return type ${this.returnType}`, ast);
    }

    if (this.isRootKernel) {
      retArr.push(`kernelResult = ${ result.join('') };`);
      retArr.push('return;');
    } else if (this.isSubKernel) {
      retArr.push(`subKernelResult_${ this.name } = ${ result.join('') };`);
      retArr.push(`return subKernelResult_${ this.name };`);
    } else {
      retArr.push(`return ${ result.join('') };`);
    }
    return retArr;
  }

  astLiteral(ast, retArr) {
    if (isNaN(ast.value)) {
      throw this.astErrorOutput(
        'Non-numeric literal not supported : ' + ast.value,
        ast
      );
    }

    if (Number.isInteger(ast.value)) {
      if (this.isState('in-for-loop-init') || this.isState('casting-to-integer')) {
        this.literalTypes[`${ast.start},${ast.end}`] = 'Integer';
        retArr.push(`${ast.value}`);
      } else if (this.isState('casting-to-float')) {
        this.literalTypes[`${ast.start},${ast.end}`] = 'Number';
        retArr.push(`${ast.value}.0`);
      } else {
        this.literalTypes[`${ast.start},${ast.end}`] = 'Number';
        retArr.push(`${ast.value}.0`);
      }
    } else if (this.isState('casting-to-integer')) {
      this.literalTypes[`${ast.start},${ast.end}`] = 'Integer';
      retArr.push(parseInt(ast.raw));
    } else {
      this.literalTypes[`${ast.start},${ast.end}`] = 'Number';
      retArr.push(`${ast.value}`);
    }
    return retArr;
  }

  astBinaryExpression(ast, retArr) {
    if (ast.operator === '%') {
      retArr.push('mod(');

      const leftType = this.getType(ast.left);
      if (leftType === 'Integer') {
        retArr.push('float(');
        this.astGeneric(ast.left, retArr);
        retArr.push(')');
      } else if (leftType === 'LiteralInteger') {
        this.pushState('casting-to-float');
        this.astGeneric(ast.left, retArr);
        this.popState('casting-to-float');
      } else {
        this.astGeneric(ast.left, retArr);
      }

      retArr.push(',');
      const rightType = this.getType(ast.right);

      if (rightType === 'Integer') {
        retArr.push('float(');
        this.astGeneric(ast.right, retArr);
        retArr.push(')');
      } else if (rightType === 'LiteralInteger') {
        this.pushState('casting-to-float');
        this.astGeneric(ast.right, retArr);
        this.popState('casting-to-float');
      } else {
        this.astGeneric(ast.right, retArr);
      }
      retArr.push(')');
      return retArr;
    }

    if (ast.operator === '**') {
      retArr.push('pow(');

      const leftType = this.getType(ast.left);
      if (leftType === 'Integer') {
        retArr.push('float(');
        this.astGeneric(ast.left, retArr);
        retArr.push(')');
      } else if (leftType === 'LiteralInteger') {
        this.pushState('casting-to-float');
        this.astGeneric(ast.left, retArr);
        this.popState('casting-to-float');
      } else {
        this.astGeneric(ast.left, retArr);
      }

      retArr.push(',');
      const rightType = this.getType(ast.right);

      if (rightType === 'Integer') {
        retArr.push('float(');
        this.astGeneric(ast.right, retArr);
        retArr.push(')');
      } else if (rightType === 'LiteralInteger') {
        this.pushState('casting-to-float');
        this.astGeneric(ast.right, retArr);
        this.popState('casting-to-float');
      } else {
        this.astGeneric(ast.right, retArr);
      }
      retArr.push(')');
      return retArr;
    }

    retArr.push('(');
    if (this.fixIntegerDivisionAccuracy && ast.operator === '/') {
      retArr.push('div_with_int_check(');

      switch (this.getType(ast.left)) {
        case 'Integer':
          retArr.push('float(');
          this.pushState('casting-to-float');
          this.astGeneric(ast.left, retArr);
          this.popState('casting-to-float');
          retArr.push(')');
          break;
        case 'LiteralInteger':
          this.pushState('casting-to-float');
          this.astGeneric(ast.left, retArr);
          this.popState('casting-to-float');
          break;
        default:
          this.astGeneric(ast.left, retArr);
      }

      retArr.push(', ');

      switch (this.getType(ast.right)) {
        case 'Integer':
          retArr.push('float(');
          this.pushState('casting-to-float');
          this.astGeneric(ast.right, retArr);
          this.popState('casting-to-float');
          retArr.push(')');
          break;
        case 'LiteralInteger':
          this.pushState('casting-to-float');
          this.astGeneric(ast.right, retArr);
          this.popState('casting-to-float');
          break;
        default:
          this.astGeneric(ast.right, retArr);
      }

      retArr.push(')');
    } else {
      const leftType = this.getType(ast.left) || 'Number';
      const rightType = this.getType(ast.right) || 'Number';
      if (!leftType || !rightType) {
        throw this.astErrorOutput(`Unhandled binary expression`, ast);
      }
      const key = leftType + ' & ' + rightType;
      switch (key) {
        case 'Integer & Integer':
          this.astGeneric(ast.left, retArr);
          retArr.push(operatorMap[ast.operator] || ast.operator);
          this.astGeneric(ast.right, retArr);
          break;
        case 'Number & Float':
        case 'Float & Number':
        case 'Float & Float':
        case 'Number & Number':
          this.astGeneric(ast.left, retArr);
          retArr.push(operatorMap[ast.operator] || ast.operator);
          this.astGeneric(ast.right, retArr);
          break;
        case 'LiteralInteger & LiteralInteger':
          this.pushState('casting-to-float');
          this.astGeneric(ast.left, retArr);
          retArr.push(operatorMap[ast.operator] || ast.operator);
          this.astGeneric(ast.right, retArr);
          this.popState('casting-to-float');
          break;

        case 'Integer & Float':
        case 'Integer & Number':
          if (ast.operator === '>' || ast.operator === '<' && ast.right.type === 'Literal') {
            if (!Number.isInteger(ast.right.value)) {
              this.pushState('casting-to-float');
              retArr.push('float(');
              this.astGeneric(ast.left, retArr);
              retArr.push(')');
              this.popState('casting-to-float');
              retArr.push(operatorMap[ast.operator] || ast.operator);
              this.astGeneric(ast.right, retArr);
              break;
            }
          }
          this.astGeneric(ast.left, retArr);
          retArr.push(operatorMap[ast.operator] || ast.operator);
          this.pushState('casting-to-integer');
          if (ast.right.type === 'Literal') {
            const literalResult = [];
            this.astGeneric(ast.right, literalResult);
            const literalType = this.getType(ast.right);
            if (literalType === 'Integer') {
              retArr.push(literalResult.join(''));
            } else {
              throw this.astErrorOutput(`Unhandled binary expression with literal`, ast);
            }
          } else {
            retArr.push('int(');
            this.astGeneric(ast.right, retArr);
            retArr.push(')');
          }
          this.popState('casting-to-integer');
          break;
        case 'Integer & LiteralInteger':
          this.astGeneric(ast.left, retArr);
          retArr.push(operatorMap[ast.operator] || ast.operator);
          this.pushState('casting-to-integer');
          this.astGeneric(ast.right, retArr);
          this.popState('casting-to-integer');
          break;

        case 'Number & Integer':
          this.astGeneric(ast.left, retArr);
          retArr.push(operatorMap[ast.operator] || ast.operator);
          this.pushState('casting-to-float');
          retArr.push('float(');
          this.astGeneric(ast.right, retArr);
          retArr.push(')');
          this.popState('casting-to-float');
          break;
        case 'Float & LiteralInteger':
        case 'Number & LiteralInteger':
          if (this.isState('in-for-loop-test')) {
            retArr.push('int(');
            this.astGeneric(ast.left, retArr);
            retArr.push(')');
            retArr.push(operatorMap[ast.operator] || ast.operator);
            this.pushState('casting-to-integer');
            this.astGeneric(ast.right, retArr);
            this.popState('casting-to-integer');
          } else {
            this.astGeneric(ast.left, retArr);
            retArr.push(operatorMap[ast.operator] || ast.operator);
            this.pushState('casting-to-float');
            this.astGeneric(ast.right, retArr);
            this.popState('casting-to-float');
          }
          break;
        case 'LiteralInteger & Float':
        case 'LiteralInteger & Number':
          if (this.isState('in-for-loop-test') || this.isState('in-for-loop-init') || this.isState('casting-to-integer')) {
            this.pushState('casting-to-integer');
            this.astGeneric(ast.left, retArr);
            retArr.push(operatorMap[ast.operator] || ast.operator);
            retArr.push('int(');
            this.astGeneric(ast.right, retArr);
            retArr.push(')');
            this.popState('casting-to-integer');
          } else {
            this.astGeneric(ast.left, retArr);
            retArr.push(operatorMap[ast.operator] || ast.operator);
            this.pushState('casting-to-float');
            this.astGeneric(ast.right, retArr);
            this.popState('casting-to-float');
          }
          break;
        case 'LiteralInteger & Integer':
          this.pushState('casting-to-integer');
          this.astGeneric(ast.left, retArr);
          this.popState('casting-to-integer');
          retArr.push(operatorMap[ast.operator] || ast.operator);
          this.astGeneric(ast.right, retArr);
          break;

        case 'Boolean & Boolean':
          this.astGeneric(ast.left, retArr);
          retArr.push(operatorMap[ast.operator] || ast.operator);
          this.astGeneric(ast.right, retArr);
          break;

        case 'Float & Integer':
          this.astGeneric(ast.left, retArr);
          retArr.push(operatorMap[ast.operator] || ast.operator);
          this.pushState('casting-to-integer');
          retArr.push('float(');
          this.astGeneric(ast.right, retArr);
          retArr.push(')');
          this.popState('casting-to-integer');
          break;

        default:
          throw this.astErrorOutput(`Unhandled binary expression between ${key}`, ast);
      }
    }

    retArr.push(')');
    return retArr;
  }

  astIdentifierExpression(idtNode, retArr) {
    if (idtNode.type !== 'Identifier') {
      throw this.astErrorOutput('IdentifierExpression - not an Identifier', idtNode);
    }

    const type = this.getType(idtNode);

    if (idtNode.name === 'Infinity') {
      retArr.push('3.402823466e+38');
    } else if (type === 'Boolean') {
      if (this.argumentNames.indexOf(idtNode.name) > -1) {
        retArr.push(`bool(user_${idtNode.name})`);
      } else {
        retArr.push(`user_${idtNode.name}`);
      }
    } else {
      const userArgumentName = this.getKernelArgumentName(idtNode.name);
      if (userArgumentName) {
        retArr.push(`user_${userArgumentName}`);
      } else {
        retArr.push(`user_${idtNode.name}`);
      }
    }

    return retArr;
  }

  astForStatement(forNode, retArr) {
    if (forNode.type !== 'ForStatement') {
      throw this.astErrorOutput('Invalid for statement', forNode);
    }

    const initArr = [];
    const testArr = [];
    const updateArr = [];
    const bodyArr = [];
    let isSafe = null;

    if (forNode.init) {
      this.pushState('in-for-loop-init');
      this.astGeneric(forNode.init, initArr);
      for (let i = 0; i < initArr.length; i++) {
        if (initArr[i].includes && initArr[i].includes(',')) {
          isSafe = false;
        }
      }
      this.popState('in-for-loop-init');
    } else {
      isSafe = false;
    }

    if (forNode.test) {
      this.pushState('in-for-loop-test');
      this.astGeneric(forNode.test, testArr);
      this.popState('in-for-loop-test');
    } else {
      isSafe = false;
    }

    if (forNode.update) {
      this.astGeneric(forNode.update, updateArr);
    } else {
      isSafe = false;
    }

    if (forNode.body) {
      this.pushState('loop-body');
      this.astGeneric(forNode.body, bodyArr);
      this.popState('loop-body');
    }

    if (isSafe === null) {
      isSafe = this.isSafe(forNode.init) && this.isSafe(forNode.test);
    }

    if (isSafe) {
      retArr.push(`for (${initArr.join('')};${testArr.join('')};${updateArr.join('')}){\n`);
      retArr.push(bodyArr.join(''));
      retArr.push('}\n');
    } else {
      const iVariableName = this.getInternalVariableName('safeI');
      if (initArr.length > 0) {
        retArr.push(initArr.join(''), ';\n');
      }
      retArr.push(`for (int ${iVariableName}=0;${iVariableName}<LOOP_MAX;${iVariableName}++){\n`);
      if (testArr.length > 0) {
        retArr.push(`if (!${testArr.join('')}) break;\n`);
      }
      retArr.push(bodyArr.join(''));
      retArr.push(`\n${updateArr.join('')};`);
      retArr.push('}\n');
    }
    return retArr;
  }

  astWhileStatement(whileNode, retArr) {
    if (whileNode.type !== 'WhileStatement') {
      throw this.astErrorOutput('Invalid while statement', whileNode);
    }

    const iVariableName = this.getInternalVariableName('safeI');
    retArr.push(`for (int ${iVariableName}=0;${iVariableName}<LOOP_MAX;${iVariableName}++){\n`);
    retArr.push('if (!');
    this.astGeneric(whileNode.test, retArr);
    retArr.push(') break;\n');
    this.astGeneric(whileNode.body, retArr);
    retArr.push('}\n');

    return retArr;
  }

  astDoWhileStatement(doWhileNode, retArr) {
    if (doWhileNode.type !== 'DoWhileStatement') {
      throw this.astErrorOutput('Invalid while statement', doWhileNode);
    }

    const iVariableName = this.getInternalVariableName('safeI');
    retArr.push(`for (int ${iVariableName}=0;${iVariableName}<LOOP_MAX;${iVariableName}++){\n`);
    this.astGeneric(doWhileNode.body, retArr);
    retArr.push('if (!');
    this.astGeneric(doWhileNode.test, retArr);
    retArr.push(') break;\n');
    retArr.push('}\n');

    return retArr;
  }


  astAssignmentExpression(assNode, retArr) {
    if (assNode.operator === '%=') {
      this.astGeneric(assNode.left, retArr);
      retArr.push('=');
      retArr.push('mod(');
      this.astGeneric(assNode.left, retArr);
      retArr.push(',');
      this.astGeneric(assNode.right, retArr);
      retArr.push(')');
    } else if (assNode.operator === '**=') {
      this.astGeneric(assNode.left, retArr);
      retArr.push('=');
      retArr.push('pow(');
      this.astGeneric(assNode.left, retArr);
      retArr.push(',');
      this.astGeneric(assNode.right, retArr);
      retArr.push(')');
    } else {
      const leftType = this.getType(assNode.left);
      const rightType = this.getType(assNode.right);
      this.astGeneric(assNode.left, retArr);
      retArr.push(assNode.operator);
      if (leftType !== 'Integer' && rightType === 'Integer') {
        retArr.push('float(');
        this.astGeneric(assNode.right, retArr);
        retArr.push(')');
      } else {
        this.astGeneric(assNode.right, retArr);
      }
      return retArr;
    }
  }

  astBlockStatement(bNode, retArr) {
    if (this.isState('loop-body')) {
      this.pushState('block-body'); 
      for (let i = 0; i < bNode.body.length; i++) {
        this.astGeneric(bNode.body[i], retArr);
      }
      this.popState('block-body');
    } else {
      retArr.push('{\n');
      for (let i = 0; i < bNode.body.length; i++) {
        this.astGeneric(bNode.body[i], retArr);
      }
      retArr.push('}\n');
    }
    return retArr;
  }

  astVariableDeclaration(varDecNode, retArr) {
    if (varDecNode.kind === 'var') {
      this.varWarn();
    }
    const declarations = varDecNode.declarations;
    if (!declarations || !declarations[0] || !declarations[0].init) {
      throw this.astErrorOutput('Unexpected expression', varDecNode);
    }
    const result = [];
    const firstDeclaration = declarations[0];
    const init = firstDeclaration.init;
    const actualType = this.getType(init);
    const inForLoopInit = this.isState('in-for-loop-init');
    let type = inForLoopInit ? 'Integer' : actualType;
    if (type === 'LiteralInteger') {
      type = 'Number';
    }
    const markupType = typeMap[type];
    if (!markupType) {
      throw this.astErrorOutput(`Markup type ${ markupType } not handled`, varDecNode);
    }
    let dependencies = this.getDependencies(firstDeclaration.init);
    const initResult = [];
    if (actualType === 'Integer' && type === 'Integer' && !inForLoopInit) {
      this.declarations[firstDeclaration.id.name] = Object.freeze({
        type: 'Number',
        dependencies,
        isSafe: this.isSafeDependencies(dependencies),
      });
      initResult.push('float ');
      initResult.push(`user_${firstDeclaration.id.name}=`);
      initResult.push('float(');
      this.astGeneric(init, initResult);
      initResult.push(')');
    } else {
      this.declarations[firstDeclaration.id.name] = Object.freeze({
        type,
        dependencies,
        isSafe: this.isSafeDependencies(dependencies),
      });
      initResult.push(`${markupType} `);
      initResult.push(`user_${firstDeclaration.id.name}=`);
      if (actualType === 'Number' && type === 'Integer') {
        initResult.push('int(');
        this.astGeneric(init, initResult);
        initResult.push(')');
      } else {
        this.astGeneric(init, initResult);
      }
    }
    result.push(initResult.join(''));

    let lastType = type;
    for (let i = 1; i < declarations.length; i++) {
      const declaration = declarations[i];
      const nextResult = [];
      if (!inForLoopInit) {
        let possibleNewType = this.getType(declaration.init);
        if (possibleNewType === 'LiteralInteger') {
          possibleNewType = 'Number';
        }
        if (possibleNewType !== lastType) {
          nextResult.push(';');
          nextResult.push(typeMap[possibleNewType], ' ');
          lastType = possibleNewType;
        } else {
          nextResult.push(',');
        }
      } else {
        nextResult.push(',');
      }
      dependencies = this.getDependencies(declaration);
      this.declarations[declaration.id.name] = Object.freeze({
        type: lastType,
        dependencies: dependencies,
        isSafe: this.isSafeDependencies(dependencies),
      });
      this.astGeneric(declaration, nextResult);
      result.push(nextResult.join(''));
    }

    retArr.push(result.join(''));
    if (!inForLoopInit) {
      retArr.push(';');
    }
    return retArr;
  }

  astIfStatement(ifNode, retArr) {
    retArr.push('if (');
    this.astGeneric(ifNode.test, retArr);
    retArr.push(')');
    if (ifNode.consequent.type === 'BlockStatement') {
      this.astGeneric(ifNode.consequent, retArr);
    } else {
      retArr.push(' {\n');
      this.astGeneric(ifNode.consequent, retArr);
      retArr.push('\n}\n');
    }

    if (ifNode.alternate) {
      retArr.push('else ');
      if (ifNode.alternate.type === 'BlockStatement') {
        this.astGeneric(ifNode.alternate, retArr);
      } else {
        retArr.push(' {\n');
        this.astGeneric(ifNode.alternate, retArr);
        retArr.push('\n}\n');
      }
    }
    return retArr;
  }

  astThisExpression(tNode, retArr) {
    retArr.push('this');
    return retArr;
  }

  astMemberExpression(mNode, retArr) {
    const {
      property,
      name,
      signature,
      origin,
      type,
      xProperty,
      yProperty,
      zProperty
    } = this.getMemberExpressionDetails(mNode);
    switch (signature) {
      case 'this.thread.value':
        if (name !== 'x' && name !== 'y' && name !== 'z') {
          throw this.astErrorOutput('Unexpected expression, expected `this.thread.x`, `this.thread.y`, or `this.thread.z`', mNode);
        }
        retArr.push(`threadId.${name}`);
        return retArr;
      case 'this.output.value':
        if (this.dynamicOutput) {
          switch (name) {
            case 'x':
              if (this.isState('casting-to-float')) {
                retArr.push('float(uOutputDim.x)');
              } else {
                retArr.push('uOutputDim.x');
              }
              break;
            case 'y':
              if (this.isState('casting-to-float')) {
                retArr.push('float(uOutputDim.y)');
              } else {
                retArr.push('uOutputDim.y');
              }
              break;
            case 'z':
              if (this.isState('casting-to-float')) {
                retArr.push('float(uOutputDim.z)');
              } else {
                retArr.push('uOutputDim.z');
              }
              break;
            default:
              throw this.astErrorOutput('Unexpected expression', mNode);
          }
        } else {
          switch (name) {
            case 'x':
              if (this.isState('casting-to-integer')) {
                retArr.push(this.output[0]);
              } else {
                retArr.push(this.output[0], '.0');
              }
              break;
            case 'y':
              if (this.isState('casting-to-integer')) {
                retArr.push(this.output[1]);
              } else {
                retArr.push(this.output[1], '.0');
              }
              break;
            case 'z':
              if (this.isState('casting-to-integer')) {
                retArr.push(this.output[2]);
              } else {
                retArr.push(this.output[2], '.0');
              }
              break;
            default:
              throw this.astErrorOutput('Unexpected expression', mNode);
          }
        }
        return retArr;
      case 'value':
        throw this.astErrorOutput('Unexpected expression', mNode);
      case 'value[]':
      case 'value[][]':
      case 'value[][][]':
      case 'value[][][][]':
      case 'value.value':
        if (origin === 'Math') {
          retArr.push(Math[name]);
          return retArr;
        }
        switch (property) {
          case 'r':
            retArr.push(`user_${ name }.r`);
            return retArr;
          case 'g':
            retArr.push(`user_${ name }.g`);
            return retArr;
          case 'b':
            retArr.push(`user_${ name }.b`);
            return retArr;
          case 'a':
            retArr.push(`user_${ name }.a`);
            return retArr;
        }
        break;
      case 'this.constants.value':
      case 'this.constants.value[]':
      case 'this.constants.value[][]':
      case 'this.constants.value[][][]':
      case 'this.constants.value[][][][]':
        break;
      case 'fn()[]':
        this.astCallExpression(mNode.object, retArr);
        retArr.push('[');
        retArr.push(this.memberExpressionPropertyMarkup(property));
        retArr.push(']');
        return retArr;
      case '[][]':
        this.astArrayExpression(mNode.object, retArr);
        retArr.push('[');
        retArr.push(this.memberExpressionPropertyMarkup(property));
        retArr.push(']');
        return retArr;
      default:
        throw this.astErrorOutput('Unexpected expression', mNode);
    }

    switch (type) {
      case 'Number':
      case 'Integer':
      case 'Float':
      case 'Boolean':
        retArr.push(`${ origin }_${ name}`);
        return retArr;
    }

    let synonymName = this.getKernelArgumentName(name);

    const markupName = `${origin}_${synonymName || name}`;

    switch (type) {
      case 'Array(2)':
      case 'Array(3)':
      case 'Array(4)':
        this.astGeneric(mNode.object, retArr);
        retArr.push('[');
        retArr.push(this.memberExpressionPropertyMarkup(xProperty));
        retArr.push(']');
        break;
      case 'HTMLImageArray':
        retArr.push(`getImage3D(${ markupName }, ${ markupName }Size, ${ markupName }Dim, `);
        this.memberExpressionXYZ(xProperty, yProperty, zProperty, retArr);
        retArr.push(')');
        break;
      case 'ArrayTexture(1)':
        retArr.push(`getFloatFromSampler2D(${ markupName }, ${ markupName }Size, ${ markupName }Dim, `);
        this.memberExpressionXYZ(xProperty, yProperty, zProperty, retArr);
        retArr.push(')');
        break;
      case 'ArrayTexture(2)':
        retArr.push(`getVec2FromSampler2D(${ markupName }, ${ markupName }Size, ${ markupName }Dim, `);
        this.memberExpressionXYZ(xProperty, yProperty, zProperty, retArr);
        retArr.push(')');
        break;
      case 'ArrayTexture(3)':
        retArr.push(`getVec3FromSampler2D(${ markupName }, ${ markupName }Size, ${ markupName }Dim, `);
        this.memberExpressionXYZ(xProperty, yProperty, zProperty, retArr);
        retArr.push(')');
        break;
      case 'ArrayTexture(4)':
      case 'HTMLImage':
        retArr.push(`getVec4FromSampler2D(${ markupName }, ${ markupName }Size, ${ markupName }Dim, `);
        this.memberExpressionXYZ(xProperty, yProperty, zProperty, retArr);
        retArr.push(')');
        break;
      case 'NumberTexture':
      case 'Array':
      case 'Array2D':
      case 'Array3D':
      case 'Array4D':
      case 'Input':

        if (this.precision === 'single') {
          retArr.push(`getMemoryOptimized32(${markupName}, ${markupName}Size, ${markupName}Dim, `);
          this.memberExpressionXYZ(xProperty, yProperty, zProperty, retArr);
          retArr.push(')');
        } else {
          const bitRatio = (origin === 'user' ?
            this.lookupFunctionArgumentBitRatio(this.name, name) :
            this.constantBitRatios[name]
          );
          switch (bitRatio) {
            case 1:
              retArr.push(`get8(${markupName}, ${markupName}Size, ${markupName}Dim, `);
              break;
            case 2:
              retArr.push(`get16(${markupName}, ${markupName}Size, ${markupName}Dim, `);
              break;
            case 4:
            case 0:
              retArr.push(`get32(${markupName}, ${markupName}Size, ${markupName}Dim, `);
              break;
            default:
              throw new Error(`unhandled bit ratio of ${bitRatio}`);
          }
          this.memberExpressionXYZ(xProperty, yProperty, zProperty, retArr);
          retArr.push(')');
        }
        break;
      case 'MemoryOptimizedNumberTexture':
        retArr.push(`getMemoryOptimized32(${ markupName }, ${ markupName }Size, ${ markupName }Dim, `);
        this.memberExpressionXYZ(xProperty, yProperty, zProperty, retArr);
        retArr.push(')');
        break;
      default:
        throw new Error(`unhandled member expression "${ type }"`);
    }
    return retArr;
  }

  astCallExpression(ast, retArr) {
    if (!ast.callee) {
      throw this.astErrorOutput(
        'Unknown CallExpression',
        ast
      );
    }

    let functionName = this.astMemberExpressionUnroll(ast.callee);
    const isMathFunction = functionName.indexOf(jsMathPrefix) === 0;

    if (isMathFunction) {
      functionName = functionName.slice(jsMathPrefix.length);
    }

    if (functionName.indexOf(localPrefix) === 0) {
      functionName = functionName.slice(localPrefix.length);
    }

    if (functionName === 'atan2') {
      functionName = 'atan';
    }

    if (this.calledFunctions.indexOf(functionName) < 0) {
      this.calledFunctions.push(functionName);
    }

    if (functionName === 'random' && this.plugins && this.plugins.length > 0) {
      for (let i = 0; i < this.plugins.length; i++) {
        const plugin = this.plugins[i];
        if (plugin.functionMatch === 'Math.random()' && plugin.functionReplace) {
          retArr.push(plugin.functionReplace);
          return retArr;
        }
      }
    }

    if (this.onFunctionCall) {
      this.onFunctionCall(this.name, functionName);
    }

    retArr.push(functionName);

    retArr.push('(');

    if (isMathFunction) {
      for (let i = 0; i < ast.arguments.length; ++i) {
        const argument = ast.arguments[i];
        const argumentType = this.getType(argument);
        if (i > 0) {
          retArr.push(', ');
        }

        switch (argumentType) {
          case 'Integer':
            this.pushState('casting-to-float');
            retArr.push('float(');
            this.astGeneric(argument, retArr);
            retArr.push(')');
            this.popState('casting-to-float');
            break;
          default:
            this.astGeneric(argument, retArr);
            break;
        }
      }
    } else {
      const targetTypes = this.lookupFunctionArgumentTypes(functionName) || [];
      for (let i = 0; i < ast.arguments.length; ++i) {
        const argument = ast.arguments[i];
        let targetType = targetTypes[i];
        if (i > 0) {
          retArr.push(', ');
        }
        const argumentType = this.getType(argument);
        if (!targetType) {
          this.triggerImplyArgumentType(functionName, i, argumentType, this);
          targetType = argumentType;
        }
        switch (argumentType) {
          case 'Number':
          case 'Float':
            if (targetType === 'Integer') {
              retArr.push('int(');
              this.astGeneric(argument, retArr);
              retArr.push(')');
              continue;
            } else if (targetType === 'Number' || targetType === 'Float') {
              this.astGeneric(argument, retArr);
              continue;
            } else if (targetType === 'LiteralInteger') {
              this.pushState('casting-to-float');
              this.astGeneric(argument, retArr);
              this.popState('casting-to-float');
              continue;
            }
            break;
          case 'Integer':
            if (targetType === 'Number' || targetType === 'Float') {
              retArr.push('float(');
              this.astGeneric(argument, retArr);
              retArr.push(')');
              continue;
            } else if (targetType === 'Integer') {
              this.astGeneric(argument, retArr);
              continue;
            }
            break;
          case 'LiteralInteger':
            if (targetType === 'Integer') {
              this.pushState('casting-to-integer');
              this.astGeneric(argument, retArr);
              this.popState('casting-to-integer');
              continue;
            } else if (targetType === 'Number' || targetType === 'Float') {
              this.pushState('casting-to-float');
              this.astGeneric(argument, retArr);
              this.popState('casting-to-float');
              continue;
            } else if (targetType === 'LiteralInteger') {
              this.astGeneric(argument, retArr);
              continue;
            }
            break;
          case 'Array(2)':
          case 'Array(3)':
          case 'Array(4)':
            if (targetType === argumentType) {
              this.astGeneric(argument, retArr);
              continue;
            }
            break;
          case 'Array':
          case 'Input':
            if (targetType === argumentType) {
              this.triggerTrackArgumentSynonym(this.name, argument.name, functionName, i);
              this.astGeneric(argument, retArr);
              continue;
            }
            break;
        }
        throw this.astErrorOutput(`Unhandled argument combination of ${ argumentType } and ${ targetType }`, ast);
      }
    }
    retArr.push(')');

    return retArr;
  }

  astArrayExpression(arrNode, retArr) {
    const arrLen = arrNode.elements.length;

    retArr.push('vec' + arrLen + '(');
    for (let i = 0; i < arrLen; ++i) {
      if (i > 0) {
        retArr.push(', ');
      }
      const subNode = arrNode.elements[i];
      this.astGeneric(subNode, retArr)
    }
    retArr.push(')');

    return retArr;
  }

  memberExpressionXYZ(x, y, z, retArr) {
    if (z) {
      retArr.push(this.memberExpressionPropertyMarkup(z), ', ');
    } else {
      retArr.push('0, ');
    }
    if (y) {
      retArr.push(this.memberExpressionPropertyMarkup(y), ', ');
    } else {
      retArr.push('0, ');
    }
    retArr.push(this.memberExpressionPropertyMarkup(x));
    return retArr;
  }

  memberExpressionPropertyMarkup(property) {
    if (!property) {
      throw new Error('Property not set');
    }
    const type = this.getType(property);
    const result = [];
    switch (type) {
      case 'Number':
      case 'Float':
        this.pushState('casting-to-integer');
        result.push('int(');
        this.astGeneric(property, result);
        result.push(')');
        this.popState('casting-to-integer');
        break;
      case 'LiteralInteger':
        this.pushState('casting-to-integer');
        this.astGeneric(property, result);
        this.popState('casting-to-integer');
        break;
      default:
        this.astGeneric(property, result);
    }
    return result.join('');
  }
}

const typeMap = {
  'Array': 'sampler2D',
  'Array(2)': 'vec2',
  'Array(3)': 'vec3',
  'Array(4)': 'vec4',
  'Array2D': 'sampler2D',
  'Array3D': 'sampler2D',
  'Boolean': 'bool',
  'Float': 'float',
  'Input': 'sampler2D',
  'Integer': 'int',
  'Number': 'float',
  'LiteralInteger': 'float',
  'NumberTexture': 'sampler2D',
  'MemoryOptimizedNumberTexture': 'sampler2D',
  'ArrayTexture(1)': 'sampler2D',
  'ArrayTexture(2)': 'sampler2D',
  'ArrayTexture(3)': 'sampler2D',
  'ArrayTexture(4)': 'sampler2D',
};

const operatorMap = {
  '===': '==',
  '!==': '!='
};

module.exports = {
  WebGLFunctionNode
};
},{"../function-node":10}],18:[function(require,module,exports){
const { WebGLKernelValueBoolean } = require('./kernel-value/boolean');
const { WebGLKernelValueFloat } = require('./kernel-value/float');
const { WebGLKernelValueInteger } = require('./kernel-value/integer');

const { WebGLKernelValueHTMLImage } = require('./kernel-value/html-image');
const { WebGLKernelValueDynamicHTMLImage } = require('./kernel-value/dynamic-html-image');

const { WebGLKernelValueSingleInput } = require('./kernel-value/single-input');
const { WebGLKernelValueDynamicSingleInput } = require('./kernel-value/dynamic-single-input');

const { WebGLKernelValueUnsignedInput } = require('./kernel-value/unsigned-input');
const { WebGLKernelValueDynamicUnsignedInput } = require('./kernel-value/dynamic-unsigned-input');

const { WebGLKernelValueMemoryOptimizedNumberTexture } = require('./kernel-value/memory-optimized-number-texture');
const { WebGLKernelValueDynamicMemoryOptimizedNumberTexture } = require('./kernel-value/dynamic-memory-optimized-number-texture');

const { WebGLKernelValueNumberTexture } = require('./kernel-value/number-texture');
const { WebGLKernelValueDynamicNumberTexture } = require('./kernel-value/dynamic-number-texture');

const { WebGLKernelValueSingleArray } = require('./kernel-value/single-array');
const { WebGLKernelValueDynamicSingleArray } = require('./kernel-value/dynamic-single-array');

const { WebGLKernelValueUnsignedArray } = require('./kernel-value/unsigned-array');
const { WebGLKernelValueDynamicUnsignedArray } = require('./kernel-value/dynamic-unsigned-array');

const kernelValueMaps = {
  unsigned: {
    dynamic: {
      'Boolean': WebGLKernelValueBoolean,
      'Interger': WebGLKernelValueInteger,
      'Float': WebGLKernelValueFloat,
      'Array': WebGLKernelValueDynamicUnsignedArray,
      'Input': WebGLKernelValueDynamicUnsignedInput,
      'NumberTexture': WebGLKernelValueDynamicNumberTexture,
      'ArrayTexture(1)': WebGLKernelValueDynamicNumberTexture,
      'ArrayTexture(2)': WebGLKernelValueDynamicNumberTexture,
      'ArrayTexture(3)': WebGLKernelValueDynamicNumberTexture,
      'ArrayTexture(4)': WebGLKernelValueDynamicNumberTexture,
      'MemoryOptimizedNumberTexture': WebGLKernelValueDynamicMemoryOptimizedNumberTexture,
      'HTMLImage': WebGLKernelValueDynamicHTMLImage,
      'HTMLImageArray': false,
    },
    static: {
      'Boolean': WebGLKernelValueBoolean,
      'Interger': WebGLKernelValueInteger,
      'Float': WebGLKernelValueFloat,
      'Integer': WebGLKernelValueInteger,
      'Array': WebGLKernelValueUnsignedArray,
      'Input': WebGLKernelValueUnsignedInput,
      'NumberTexture': WebGLKernelValueNumberTexture,
      'ArrayTexture(1)': WebGLKernelValueNumberTexture,
      'ArrayTexture(2)': WebGLKernelValueNumberTexture,
      'ArrayTexture(3)': WebGLKernelValueNumberTexture,
      'ArrayTexture(4)': WebGLKernelValueNumberTexture,
      'MemoryOptimizedNumberTexture': WebGLKernelValueDynamicMemoryOptimizedNumberTexture,
      'HTMLImage': WebGLKernelValueHTMLImage,
      'HTMLImageArray': false,
    }
  },
  single: {
    dynamic: {
      'Boolean': WebGLKernelValueBoolean,
      'Interger': WebGLKernelValueInteger,
      'Float': WebGLKernelValueFloat,
      'Array': WebGLKernelValueDynamicSingleArray,
      'Input': WebGLKernelValueDynamicSingleInput,
      'NumberTexture': WebGLKernelValueDynamicNumberTexture,
      'ArrayTexture(1)': WebGLKernelValueDynamicNumberTexture,
      'ArrayTexture(2)': WebGLKernelValueDynamicNumberTexture,
      'ArrayTexture(3)': WebGLKernelValueDynamicNumberTexture,
      'ArrayTexture(4)': WebGLKernelValueDynamicNumberTexture,
      'MemoryOptimizedNumberTexture': WebGLKernelValueDynamicMemoryOptimizedNumberTexture,
      'HTMLImage': WebGLKernelValueDynamicHTMLImage,
      'HTMLImageArray': false,
    },
    static: {
      'Boolean': WebGLKernelValueBoolean,
      'Interger': WebGLKernelValueInteger,
      'Float': WebGLKernelValueFloat,
      'Integer': WebGLKernelValueInteger,
      'Array': WebGLKernelValueSingleArray,
      'Input': WebGLKernelValueSingleInput,
      'NumberTexture': WebGLKernelValueNumberTexture,
      'ArrayTexture(1)': WebGLKernelValueNumberTexture,
      'ArrayTexture(2)': WebGLKernelValueNumberTexture,
      'ArrayTexture(3)': WebGLKernelValueNumberTexture,
      'ArrayTexture(4)': WebGLKernelValueNumberTexture,
      'MemoryOptimizedNumberTexture': WebGLKernelValueMemoryOptimizedNumberTexture,
      'HTMLImage': WebGLKernelValueHTMLImage,
      'HTMLImageArray': false,
    }
  },
};

function lookupKernelValueType(type, dynamic, precision) {
  if (!type) {
    throw new Error('type missing');
  }
  if (!dynamic) {
    throw new Error('dynamic missing');
  }
  if (!precision) {
    throw new Error('precision missing');
  }
  const types = kernelValueMaps[precision][dynamic];
  if (types[type] === false) {
    return null;
  } else if (types[type] === undefined) {
    throw new Error(`Could not find a KernelValue for ${ type }`);
  }
  return types[type];
}

module.exports = {
  lookupKernelValueType
};
},{"./kernel-value/boolean":19,"./kernel-value/dynamic-html-image":20,"./kernel-value/dynamic-memory-optimized-number-texture":21,"./kernel-value/dynamic-number-texture":22,"./kernel-value/dynamic-single-array":23,"./kernel-value/dynamic-single-input":24,"./kernel-value/dynamic-unsigned-array":25,"./kernel-value/dynamic-unsigned-input":26,"./kernel-value/float":27,"./kernel-value/html-image":28,"./kernel-value/integer":30,"./kernel-value/memory-optimized-number-texture":31,"./kernel-value/number-texture":32,"./kernel-value/single-array":33,"./kernel-value/single-input":34,"./kernel-value/unsigned-array":35,"./kernel-value/unsigned-input":36}],19:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueBoolean extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.uploadValue = value;
  }
  getSource(value) {
    if (this.origin === 'constants') {
      return `const bool ${this.id} = ${value};\n`;
    }
    return `uniform bool ${this.id};\n`;
  }

  getStringValueHandler() {
    return `const uploadValue_${this.name} = ${this.name};\n`;
  }

  updateValue(value) {
    if (this.origin === 'constants') return;
    this.kernel.setUniform1i(this.id, this.uploadValue = value);
  }
}

module.exports = {
  WebGLKernelValueBoolean
};
},{"../../../utils":70,"./index":29}],20:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueHTMLImage } = require('./html-image');

class WebGLKernelValueDynamicInput extends WebGLKernelValueHTMLImage {
  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `uniform ivec2 ${this.sizeId}`,
      `uniform ivec3 ${this.dimensionsId}`,
    ]);
  }

  updateValue(value) {
    const { width, height } = value;
    this.dimensions = [width, height, 1];
    this.textureSize = [width, height];
    this.kernel.setUniform3iv(this.dimensionsId, this.dimensions);
    this.kernel.setUniform2iv(this.sizeId, this.textureSize);
    super.updateValue(value);
  }
}

module.exports = {
  WebGLKernelValueDynamicInput
};
},{"../../../utils":70,"./html-image":28}],21:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueMemoryOptimizedNumberTexture } = require('./memory-optimized-number-texture');

class WebGLKernelValueDynamicMemoryOptimizedNumberTexture extends WebGLKernelValueMemoryOptimizedNumberTexture {
  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `uniform ivec2 ${this.sizeId}`,
      `uniform ivec3 ${this.dimensionsId}`,
    ]);
  }

  updateValue(inputTexture) {
    this.dimensions = inputTexture.dimensions;
    this.textureSize = inputTexture.size;
    this.kernel.setUniform3iv(this.dimensionsId, this.dimensions);
    this.kernel.setUniform2iv(this.sizeId, this.textureSize);
    super.updateValue(inputTexture);
  }
}

module.exports = {
  WebGLKernelValueDynamicMemoryOptimizedNumberTexture
};
},{"../../../utils":70,"./memory-optimized-number-texture":31}],22:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueNumberTexture } = require('./number-texture');

class WebGLKernelValueDynamicNumberTexture extends WebGLKernelValueNumberTexture {
  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `uniform ivec2 ${this.sizeId}`,
      `uniform ivec3 ${this.dimensionsId}`,
    ]);
  }

  updateValue(value) {
    this.dimensions = inputTexture.dimensions;
    this.textureSize = inputTexture.size;
    this.kernel.setUniform3iv(this.dimensionsId, this.dimensions);
    this.kernel.setUniform2iv(this.sizeId, this.textureSize);
    super.updateValue(value);
  }
}

module.exports = {
  WebGLKernelValueDynamicNumberTexture
};
},{"../../../utils":70,"./number-texture":32}],23:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueSingleArray } = require('./single-array');

class WebGLKernelValueDynamicSingleArray extends WebGLKernelValueSingleArray {
  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `uniform ivec2 ${this.sizeId}`,
      `uniform ivec3 ${this.dimensionsId}`,
    ]);
  }

  updateValue(value) {
    this.dimensions = utils.getDimensions(value, true);
    this.textureSize = utils.getMemoryOptimizedFloatTextureSize(this.dimensions, this.bitRatio);
    this.uploadArrayLength = this.textureSize[0] * this.textureSize[1] * this.bitRatio;
    this.uploadValue = new Float32Array(this.uploadArrayLength);
    this.kernel.setUniform3iv(this.dimensionsId, this.dimensions);
    this.kernel.setUniform2iv(this.sizeId, this.textureSize);
    super.updateValue(value);
  }
}

module.exports = {
  WebGLKernelValueDynamicSingleArray
};
},{"../../../utils":70,"./single-array":33}],24:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueSingleInput } = require('./single-input');

class WebGLKernelValueDynamicSingleInput extends WebGLKernelValueSingleInput {
  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `uniform ivec2 ${this.sizeId}`,
      `uniform ivec3 ${this.dimensionsId}`,
    ]);
  }

  updateValue(value) {
    this.dimensions = value.size;
    this.textureSize = utils.getMemoryOptimizedFloatTextureSize(this.dimensions, this.bitRatio);
    this.uploadArrayLength = this.textureSize[0] * this.textureSize[1] * (4 / this.bitRatio);
    this.uploadValue = new Float32Array(this.uploadArrayLength);
    this.kernel.setUniform3iv(this.dimensionsId, this.dimensions);
    this.kernel.setUniform2iv(this.sizeId, this.textureSize);
    super.updateValue(value);
  }
}

module.exports = {
  WebGLKernelValueDynamicSingleInput
};
},{"../../../utils":70,"./single-input":34}],25:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueUnsignedArray } = require('./unsigned-array');

class WebGLKernelValueDynamicUnsignedArray extends WebGLKernelValueUnsignedArray {
  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `uniform ivec2 ${this.sizeId}`,
      `uniform ivec3 ${this.dimensionsId}`,
    ]);
  }

  updateValue(value) {
    this.dimensions = utils.getDimensions(value, true);
    this.textureSize = utils.getMemoryOptimizedPackedTextureSize(this.dimensions, this.bitRatio);
    this.uploadArrayLength = this.textureSize[0] * this.textureSize[1] * (4 / this.bitRatio);
    const Type = this.getTransferArrayType(value);
    this.preUploadValue = new Type(this.uploadArrayLength);
    this.uploadValue = new Uint8Array(this.preUploadValue.buffer);
    this.kernel.setUniform3iv(this.dimensionsId, this.dimensions);
    this.kernel.setUniform2iv(this.sizeId, this.textureSize);
    super.updateValue(value);
  }
}

module.exports = {
  WebGLKernelValueDynamicUnsignedArray
};
},{"../../../utils":70,"./unsigned-array":35}],26:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueUnsignedInput } = require('./unsigned-input');

class WebGLKernelValueDynamicUnsignedInput extends WebGLKernelValueUnsignedInput {
  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `uniform ivec2 ${this.sizeId}`,
      `uniform ivec3 ${this.dimensionsId}`,
    ]);
  }

  updateValue(value) {
    this.dimensions = value.size;
    this.textureSize = utils.getMemoryOptimizedPackedTextureSize(this.dimensions, this.bitRatio);
    this.uploadArrayLength = this.textureSize[0] * this.textureSize[1] * (4 / this.bitRatio);
    const Type = this.getTransferArrayType(value.value);
    this.preUploadValue = new Type(this.uploadArrayLength);
    this.uploadValue = new Uint8Array(this.preUploadValue.buffer);
    this.kernel.setUniform3iv(this.dimensionsId, this.dimensions);
    this.kernel.setUniform2iv(this.sizeId, this.textureSize);
    super.updateValue(value);
  }
}

module.exports = {
  WebGLKernelValueDynamicUnsignedInput
};
},{"../../../utils":70,"./unsigned-input":36}],27:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueFloat extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.uploadValue = value;
  }
  getSource(value) {
    if (this.origin === 'constants') {
      if (Number.isInteger(value)) {
        return `const float ${this.id} = ${value}.0;\n`;
      }
      return `const float ${this.id} = ${value};\n`;
    }
    return `uniform float ${this.id};\n`;
  }

  updateValue(value) {
    if (this.origin === 'constants') return;
    this.kernel.setUniform1f(this.id, this.uploadValue = value);
  }
}

module.exports = {
  WebGLKernelValueFloat
};
},{"../../../utils":70,"./index":29}],28:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueHTMLImage extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    const { width, height } = value;
    this.dimensions = [width, height, 1];
    this.requestTexture();
    this.textureSize = [width, height];
    this.uploadValue = value;
  }

  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(inputImage) {
    const { context: gl } = this;
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D, this.texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, true);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, this.uploadValue = inputImage);
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGLKernelValueHTMLImage
};
},{"../../../utils":70,"./index":29}],29:[function(require,module,exports){
const { utils } = require('../../../utils');
const { Input } = require('../../../input');
const { KernelValue } = require('../../kernel-Value');

class WebGLKernelValue extends KernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.dimensionsId = null;
    this.sizeId = null;
    this.initialValueConstructor = value.constructor;
    this.onRequestTexture = settings.onRequestTexture;
    this.onRequestIndex = settings.onRequestIndex;
    this.uploadValue = null;
    this.textureSize = null;
    this.bitRatio = null;
  }

  requestTexture() {
    this.texture = this.onRequestTexture();
    this.setupTexture();
  }

  setupTexture() {
    this.contextHandle = this.onRequestContextHandle();
    this.index = this.onRequestIndex();
    this.dimensionsId = this.id + 'Dim';
    this.sizeId = this.id + 'Size';
  }

  getTransferArrayType(value) {
    if (Array.isArray(value[0])) {
      return this.getTransferArrayType(value[0]);
    }
    if (value.constructor === Array) {
      return Float32Array;
    }
    return value.constructor;
  }
  formatArrayTransfer(value, length, Type) {
    if (utils.isArray(value[0]) || this.optimizeFloatMemory) {
      const valuesFlat = new Float32Array(length);
      utils.flattenTo(value, valuesFlat);
      return valuesFlat;
    } else {
      switch (value.constructor) {
        case Uint8Array:
        case Int8Array:
        case Uint16Array:
        case Int16Array:
        case Float32Array:
        case Int32Array: {
          const valuesFlat = new(Type || value.constructor)(length);
          utils.flattenTo(value, valuesFlat);
          return valuesFlat;
        }
        default: {
          const valuesFlat = new Float32Array(length);
          utils.flattenTo(value, valuesFlat);
          return valuesFlat;
        }
      }
    }
  }

  getBitRatio(value) {
    if (Array.isArray(value[0])) {
      return this.getBitRatio(value[0]);
    } else if (value.constructor === Input) {
      return this.getBitRatio(value.value);
    }
    switch (value.constructor) {
      case Uint8Array:
      case Int8Array:
        return 1;
      case Uint16Array:
      case Int16Array:
        return 2;
      case Float32Array:
      case Int32Array:
      default:
        return 4;
    }
  }

  getStringValueHandler() {
    throw new Error(`"getStringValueHandler" not implemented on ${this.constructor.name}`);
  }
}

module.exports = {
  WebGLKernelValue
};
},{"../../../input":66,"../../../utils":70,"../../kernel-Value":14}],30:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueInteger extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.uploadValue = value;
  }

  getSource(value) {
    if (this.origin === 'constants') {
      return `const int ${this.id} = ${ parseInt(value) };\n`;
    }
    return `uniform int ${this.id};\n`;
  }

  updateValue(value) {
    if (this.origin === 'constants') return;
    this.kernel.setUniform1i(this.id, this.uploadValue = value);
  }
}

module.exports = {
  WebGLKernelValueInteger
};
},{"../../../utils":70,"./index":29}],31:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueMemoryOptimizedNumberTexture extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.setupTexture();
    this.dimensions = value.dimensions;
    this.textureSize = value.size;
    this.uploadValue = value.texture;
  }

  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(inputTexture) {
    if (inputTexture.constructor !== this.initialValueConstructor) {
      this.onUpdateValueMismatch();
      return;
    }
    if (inputTexture.context !== this.context) {
      throw new Error(`Value ${this.name} (${this.type }) must be from same context`);
    }
    const { context: gl } = this;
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D, this.uploadValue = inputTexture.texture);
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGLKernelValueMemoryOptimizedNumberTexture
};
},{"../../../utils":70,"./index":29}],32:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueNumberTexture extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.setupTexture();
    const { size: textureSize, dimensions } = value;
    this.bitRatio = this.getBitRatio(value);
    this.dimensions = dimensions;
    this.textureSize = textureSize;
    this.uploadValue = value.texture;
  }

  getStringValueHandler() {
    return `const uploadValue_${this.name} = ${this.name};\n`;
  }

  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(inputTexture) {
    if (inputTexture.constructor !== this.initialValueConstructor) {
      this.onUpdateValueMismatch();
      return;
    }
    if (inputTexture.context !== this.context) {
      throw new Error(`Value ${this.name} (${this.type}) must be from same context`);
    }
    const { context: gl } = this;
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D, this.uploadValue = inputTexture.texture);
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGLKernelValueNumberTexture
};
},{"../../../utils":70,"./index":29}],33:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueSingleArray extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.requestTexture();
    this.bitRatio = 4;
    this.dimensions = utils.getDimensions(value, true);
    this.textureSize = utils.getMemoryOptimizedFloatTextureSize(this.dimensions, this.bitRatio);
    this.uploadArrayLength = this.textureSize[0] * this.textureSize[1] * this.bitRatio;
    this.uploadValue = new Float32Array(this.uploadArrayLength);
  }

  getStringValueHandler() {
    return utils.linesToString([
      `const uploadValue_${this.name} = new Float32Array(${this.uploadArrayLength})`,
      `flattenTo(${this.name}, uploadValue_${this.name})`,
    ]);
  }

  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(value) {
    if (value.constructor !== this.initialValueConstructor) {
      this.onUpdateValueMismatch();
      return;
    }
    const { context: gl } = this;
    utils.flattenTo(value, this.uploadValue);
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D, this.texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, this.textureSize[0], this.textureSize[1], 0, gl.RGBA, gl.FLOAT, this.uploadValue);
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGLKernelValueSingleArray
};
},{"../../../utils":70,"./index":29}],34:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueSingleInput extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.requestTexture();
    this.bitRatio = 4;
    this.dimensions = value.size;
    this.textureSize = utils.getMemoryOptimizedFloatTextureSize(this.dimensions, this.bitRatio);
    this.uploadArrayLength = this.textureSize[0] * this.textureSize[1] * this.bitRatio;
    this.uploadValue = new Float32Array(this.uploadArrayLength);
  }

  getStringValueHandler() {
    return utils.linesToString([
      `const uploadValue_${this.name} = new Float32Array(${this.uploadArrayLength})`,
      `flattenTo(${this.name}.value, uploadValue_${this.name})`,
    ]);
  }

  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(input) {
    if (input.constructor !== this.initialValueConstructor) {
      this.onUpdateValueMismatch();
      return;
    }
    const { context: gl } = this;
    utils.flattenTo(input.value, this.uploadValue);
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D, this.texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, this.textureSize[0], this.textureSize[1], 0, gl.RGBA, gl.FLOAT, this.uploadValue);
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGLKernelValueSingleInput
};
},{"../../../utils":70,"./index":29}],35:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueUnsignedArray extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.requestTexture();
    this.bitRatio = this.getBitRatio(value);
    this.dimensions = utils.getDimensions(value, true);
    this.textureSize = utils.getMemoryOptimizedPackedTextureSize(this.dimensions, this.bitRatio);
    this.uploadArrayLength = this.textureSize[0] * this.textureSize[1] * (4 / this.bitRatio);
    this.TranserArrayType = this.getTransferArrayType(value);
    this.preUploadValue = new this.TranserArrayType(this.uploadArrayLength);
    this.uploadValue = new Uint8Array(this.preUploadValue.buffer);
  }

  getStringValueHandler() {
    return utils.linesToString([
      `const preUploadValue_${this.name} = new ${this.TranserArrayType.name}(${this.uploadArrayLength})`,
      `const uploadValue_${this.name} = new Uint8Array(preUploadValue_${this.name}.buffer)`,
      `flattenTo(${this.name}, preUploadValue_${this.name})`,
    ]);
  }

  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(value) {
    if (value.constructor !== this.initialValueConstructor) {
      this.onUpdateValueMismatch();
      return;
    }
    const { context: gl } = this;
    utils.flattenTo(value, this.preUploadValue);
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D, this.texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, this.textureSize[0], this.textureSize[1], 0, gl.RGBA, gl.UNSIGNED_BYTE, this.uploadValue);
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGLKernelValueUnsignedArray
};
},{"../../../utils":70,"./index":29}],36:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('./index');

class WebGLKernelValueUnsignedInput extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.requestTexture();
    this.bitRatio = this.getBitRatio(value);
    this.dimensions = value.size;
    this.textureSize = utils.getMemoryOptimizedPackedTextureSize(this.dimensions, this.bitRatio);
    this.uploadArrayLength = this.textureSize[0] * this.textureSize[1] * (4 / this.bitRatio);
    this.TranserArrayType = this.getTransferArrayType(value.value);
    this.preUploadValue = new this.TranserArrayType(this.uploadArrayLength);
    this.uploadValue = new Uint8Array(this.preUploadValue.buffer);
  }

  getStringValueHandler() {
    return utils.linesToString([
      `const preUploadValue_${this.name} = new ${this.TranserArrayType.name}(${this.uploadArrayLength})`,
      `const uploadValue_${this.name} = new Uint8Array(preUploadValue_${this.name}.buffer)`,
      `flattenTo(${this.name}.value, preUploadValue_${this.name})`,
    ]);
  }

  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(input) {
    if (input.constructor !== this.initialValueConstructor) {
      this.onUpdateValueMismatch();
      return;
    }
    const { context: gl } = this;
    utils.flattenTo(input.value, this.preUploadValue);
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D, this.texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, this.textureSize[0], this.textureSize[1], 0, gl.RGBA, gl.UNSIGNED_BYTE, this.uploadValue);
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGLKernelValueUnsignedInput
};
},{"../../../utils":70,"./index":29}],37:[function(require,module,exports){
const { GLKernel } = require('../gl/kernel');
const { FunctionBuilder } = require('../function-builder');
const { WebGLFunctionNode } = require('./function-node');
const { utils } = require('../../utils');
const { Texture } = require('../../texture');
const triangleNoise = require('../../plugins/triangle-noise');
const { fragmentShader } = require('./fragment-shader');
const { vertexShader } = require('./vertex-shader');
const { glKernelString } = require('../gl/kernel-string');
const { lookupKernelValueType } = require('./kernel-value-maps');

let isSupported = null;
let testCanvas = null;
let testContext = null;
let testExtensions = null;
let features = null;

const plugins = [triangleNoise];
const canvases = [];
const maxTexSizes = {};


class WebGLKernel extends GLKernel {
  static get isSupported() {
    if (isSupported !== null) {
      return isSupported;
    }
    this.setupFeatureChecks();
    isSupported = this.isContextMatch(testContext);
    return isSupported;
  }

  static setupFeatureChecks() {
    if (typeof document !== 'undefined') {
      testCanvas = document.createElement('canvas');
    } else if (typeof OffscreenCanvas !== 'undefined') {
      testCanvas = new OffscreenCanvas(0, 0);
    }
    if (!testCanvas) return;
    testContext = testCanvas.getContext('webgl') || testCanvas.getContext('experimental-webgl');
    if (!testContext || !testContext.getExtension) return;
    testExtensions = {
      OES_texture_float: testContext.getExtension('OES_texture_float'),
      OES_texture_float_linear: testContext.getExtension('OES_texture_float_linear'),
      OES_element_index_uint: testContext.getExtension('OES_element_index_uint'),
      WEBGL_draw_buffers: testContext.getExtension('WEBGL_draw_buffers'),
    };
    features = this.getFeatures();
  }

  static isContextMatch(context) {
    if (typeof WebGLRenderingContext !== 'undefined') {
      return context instanceof WebGLRenderingContext;
    }
    return false;
  }

  static getFeatures() {
    const isDrawBuffers = this.getIsDrawBuffers();
    return Object.freeze({
      isFloatRead: this.getIsFloatRead(),
      isIntegerDivisionAccurate: this.getIsIntegerDivisionAccurate(),
      isTextureFloat: this.getIsTextureFloat(),
      isDrawBuffers,
      kernelMap: isDrawBuffers,
      channelCount: this.getChannelCount(),
    });
  }

  static getIsTextureFloat() {
    return Boolean(testExtensions.OES_texture_float);
  }

  static getIsDrawBuffers() {
    return Boolean(testExtensions.WEBGL_draw_buffers);
  }

  static getChannelCount() {
    return testExtensions.WEBGL_draw_buffers ? testExtensions.WEBGL_draw_buffers.MAX_DRAW_BUFFERS_WEBGL : 1;
  }

  static lookupKernelValueType(type, dynamic, precision) {
    return lookupKernelValueType(type, dynamic, precision);
  }

  static get testCanvas() {
    return testCanvas;
  }

  static get testContext() {
    return testContext;
  }

  static get features() {
    return features;
  }

  static get fragmentShader() {
    return fragmentShader;
  }

  static get vertexShader() {
    return vertexShader;
  }

  constructor(source, settings) {
    super(source, settings);
    this.program = null;
    this.pipeline = settings.pipeline;
    this.endianness = utils.systemEndianness();
    this.extensions = {};
    this.subKernelOutputTextures = null;
    this.kernelArguments = null;
    this.argumentTextureCount = 0;
    this.constantTextureCount = 0;
    this.compiledFragmentShader = null;
    this.compiledVertexShader = null;
    this.fragShader = null;
    this.vertShader = null;
    this.drawBuffersMap = null;
    this.outputTexture = null;

    this.maxTexSize = null;
    this.switchingKernels = false;
    this.onRequestSwitchKernel = null;

    this.mergeSettings(source.settings || settings);

    this.threadDim = null;
    this.framebuffer = null;
    this.buffer = null;
    this.textureCache = {};
    this.programUniformLocationCache = {};
    this.uniform1fCache = {};
    this.uniform1iCache = {};
    this.uniform2fCache = {};
    this.uniform2fvCache = {};
    this.uniform2ivCache = {};
    this.uniform3fvCache = {};
    this.uniform3ivCache = {};
  }

  initCanvas() {
    if (typeof document !== 'undefined') {
      const canvas = document.createElement('canvas');
      canvas.width = 2;
      canvas.height = 2;
      return canvas;
    } else if (typeof OffscreenCanvas !== 'undefined') {
      return new OffscreenCanvas(0, 0);
    }
  }

  initContext() {
    const settings = {
      alpha: false,
      depth: false,
      antialias: false
    };
    return this.canvas.getContext('webgl', settings) || this.canvas.getContext('experimental-webgl', settings);
  }

  initPlugins(settings) {
    const pluginsToUse = [];
    const { source } = this;
    if (typeof source === 'string') {
      for (let i = 0; i < plugins.length; i++) {
        const plugin = plugins[i];
        if (source.match(plugin.functionMatch)) {
          pluginsToUse.push(plugin);
        }
      }
    } else if (typeof source === 'object') {
      if (settings.pluginNames) { 
        for (let i = 0; i < plugins.length; i++) {
          const plugin = plugins[i];
          const usePlugin = settings.pluginNames.some(pluginName => pluginName === plugin.name);
          if (usePlugin) {
            pluginsToUse.push(plugin);
          }
        }
      }
    }
    return pluginsToUse;
  }

  initExtensions() {
    this.extensions = {
      OES_texture_float: this.context.getExtension('OES_texture_float'),
      OES_texture_float_linear: this.context.getExtension('OES_texture_float_linear'),
      OES_element_index_uint: this.context.getExtension('OES_element_index_uint'),
      WEBGL_draw_buffers: this.context.getExtension('WEBGL_draw_buffers'),
      WEBGL_color_buffer_float: this.context.getExtension('WEBGL_color_buffer_float'),
    };
  }

  validateSettings() {
    if (!this.validate) {
      this.texSize = utils.dimToTexSize({
        floatTextures: this.optimizeFloatMemory,
        floatOutput: this.precision === 'single',
      }, this.output, true);
      return;
    }

    const { features } = this.constructor;
    if (this.optimizeFloatMemory === true && !features.isTextureFloat) {
      throw new Error('Float textures are not supported');
    } else if (this.precision === 'single' && !features.isFloatRead) {
      throw new Error('Single precision not supported');
    } else if (!this.graphical && this.precision === null && features.isTextureFloat) {
      this.precision = features.isFloatRead ? 'single' : 'unsigned';
    }

    if (this.subKernels && this.subKernels.length > 0 && !this.extensions.WEBGL_draw_buffers) {
      throw new Error('could not instantiate draw buffers extension');
    }

    if (this.fixIntegerDivisionAccuracy === null) {
      this.fixIntegerDivisionAccuracy = !features.isIntegerDivisionAccurate;
    } else if (this.fixIntegerDivisionAccuracy && features.isIntegerDivisionAccurate) {
      this.fixIntegerDivisionAccuracy = false;
    }

    this.checkOutput();

    if (!this.output || this.output.length === 0) {
      if (arguments.length !== 1) {
        throw new Error('Auto output only supported for kernels with only one input');
      }

      const argType = utils.getVariableType(arguments[0], this.strictIntegers);
      if (argType === 'Array') {
        this.output = utils.getDimensions(argType);
      } else if (argType === 'NumberTexture' || argType === 'ArrayTexture(4)') {
        this.output = arguments[0].output;
      } else {
        throw new Error('Auto output not supported for input type: ' + argType);
      }
    }

    if (this.graphical) {
      if (this.output.length !== 2) {
        throw new Error('Output must have 2 dimensions on graphical mode');
      }

      if (this.precision === 'precision') {
        this.precision = 'unsigned';
        console.warn('Cannot use graphical mode and single precision at the same time');
      }

      this.texSize = utils.clone(this.output);
      return;
    } else if (this.precision === null && features.isTextureFloat) {
      this.precision = 'single';
    }

    this.texSize = utils.dimToTexSize({
      floatTextures: this.floatTextures,
      floatOutput: this.precision === 'single'
    }, this.output, true);
  }

  updateMaxTexSize() {
    const { texSize, canvas } = this;
    if (this.maxTexSize === null) {
      let canvasIndex = canvases.indexOf(canvas);
      if (canvasIndex === -1) {
        canvasIndex = canvases.length;
        canvases.push(canvas);
        maxTexSizes[canvasIndex] = [texSize[0], texSize[1]];
      }
      this.maxTexSize = maxTexSizes[canvasIndex];
    }
    if (this.maxTexSize[0] < texSize[0]) {
      this.maxTexSize[0] = texSize[0];
    }
    if (this.maxTexSize[1] < texSize[1]) {
      this.maxTexSize[1] = texSize[1];
    }
  }

  _oldtranslateSource() {
    const functionBuilder = FunctionBuilder.fromKernel(this, WebGLFunctionNode, {
      fixIntegerDivisionAccuracy: this.fixIntegerDivisionAccuracy
    });

    const translatedSource = functionBuilder.getPrototypeString('kernel');

    if (!this.returnType) {
      this.returnType = functionBuilder.getKernelResultType();
    }

    let requiredChannels = 0;
    const returnTypes = functionBuilder.getReturnTypes();
    for (let i = 0; i < returnTypes.length; i++) {
      switch (returnTypes[i]) {
        case 'Float':
        case 'Number':
        case 'Integer':
          requiredChannels++;
          break;
        case 'Array(2)':
          requiredChannels += 2;
          break;
        case 'Array(3)':
          requiredChannels += 3;
          break;
        case 'Array(4)':
          requiredChannels += 4;
          break;
      }
    }

    if (features && requiredChannels > features.channelCount) {
      throw new Error('Too many channels!');
    }

    return this.translatedSource = translatedSource;
  }

  setupArguments(args) {
    this.kernelArguments = [];
    this.argumentTextureCount = 0;
    this.argumentTypes = [];
    this.argumentSizes = [];
    this.argumentBitRatios = [];
    if (!this.precision) {
    }

    if (args.length < this.argumentNames.length) {
      throw new Error('not enough arguments for kernel');
    } else if (args.length > this.argumentNames.length) {
      throw new Error('too many arguments for kernel');
    }

    const { context: gl } = this;
    let textureIndexes = 0;
    for (let index = 0; index < args.length; index++) {
      const value = args[index];
      const name = this.argumentNames[index];
      const type = utils.getVariableType(value, this.strictIntegers);
      this.argumentTypes.push(type);
      const KernelValue = this.constructor.lookupKernelValueType(type, this.dynamicArguments ? 'dynamic' : 'static', this.precision);
      if (KernelValue === null) {
        throw new Error('unsupported argument');
        continue;
      }
      const kernelArgument = new KernelValue(value, {
        name,
        origin: 'user',
        context: gl,
        kernel: this,
        strictIntegers: this.strictIntegers,
        onRequestTexture: () => {
          return this.context.createTexture();
        },
        onRequestIndex: () => {
          return textureIndexes++;
        },
        onUpdateValueMismatch: () => {
          this.switchingKernels = true;
        },
        onRequestContextHandle: () => {
          return gl.TEXTURE0 + this.constantTextureCount + this.argumentTextureCount++;
        }
      });
      this.kernelArguments.push(kernelArgument);
      this.argumentSizes.push(kernelArgument.textureSize);
      this.argumentBitRatios[index] = kernelArgument.bitRatio;
    }
  }

  setupConstants() {
    const { context: gl } = this;
    this.kernelConstants = [];
    this.constantTypes = {};
    this.constantBitRatios = {};
    let textureIndexes = 0;
    for (const name in this.constants) {
      const value = this.constants[name];
      const type = utils.getVariableType(value, this.strictIntegers);
      this.constantTypes[name] = type;
      const KernelValue = this.constructor.lookupKernelValueType(type, 'static', this.precision);
      if (KernelValue === null) {
        throw new Error(`unsupported constant ${ type }`);
        continue;
      }
      const kernelValue = new KernelValue(value, {
        name,
        origin: 'constants',
        context: this.context,
        kernel: this,
        strictIntegers: this.strictIntegers,
        onRequestTexture: () => {
          return this.context.createTexture();
        },
        onRequestIndex: () => {
          return textureIndexes++;
        },
        onRequestContextHandle: () => {
          return gl.TEXTURE0 + this.constantTextureCount++;
        }
      });
      this.constantBitRatios[name] = kernelValue.bitRatio;
      this.kernelConstants.push(kernelValue);
    }
  }

  build() {
    this.initExtensions();
    this.validateSettings();
    this.setupConstants();
    this.setupArguments(arguments);
    this.updateMaxTexSize();
    this.translateSource();
    this.pickRenderStrategy();
    const { texSize, context: gl, canvas } = this;
    gl.enable(gl.SCISSOR_TEST);
    if (this.pipeline && this.precision === 'single') {
      gl.viewport(0, 0, this.maxTexSize[0], this.maxTexSize[1]);
      canvas.width = this.maxTexSize[0];
      canvas.height = this.maxTexSize[1];
    } else {
      gl.viewport(0, 0, this.maxTexSize[0], this.maxTexSize[1]);
      canvas.width = this.maxTexSize[0];
      canvas.height = this.maxTexSize[1];
    }
    const threadDim = this.threadDim = Array.from(this.output);
    while (threadDim.length < 3) {
      threadDim.push(1);
    }

    const compiledVertexShader = this.getVertexShader(arguments);
    const vertShader = gl.createShader(gl.VERTEX_SHADER);
    gl.shaderSource(vertShader, compiledVertexShader);
    gl.compileShader(vertShader);
    this.vertShader = vertShader;

    const compiledFragmentShader = this.getFragmentShader(arguments);
    const fragShader = gl.createShader(gl.FRAGMENT_SHADER);
    gl.shaderSource(fragShader, compiledFragmentShader);
    gl.compileShader(fragShader);
    this.fragShader = fragShader;

    if (this.debug) {
      console.log('GLSL Shader Output:');
      console.log(compiledFragmentShader);
    }

    if (!gl.getShaderParameter(vertShader, gl.COMPILE_STATUS)) {
      throw new Error('Error compiling vertex shader: ' + gl.getShaderInfoLog(vertShader));
    }
    if (!gl.getShaderParameter(fragShader, gl.COMPILE_STATUS)) {
      throw new Error('Error compiling fragment shader: ' + gl.getShaderInfoLog(fragShader));
    }

    const program = this.program = gl.createProgram();
    gl.attachShader(program, vertShader);
    gl.attachShader(program, fragShader);
    gl.linkProgram(program);
    this.framebuffer = gl.createFramebuffer();
    this.framebuffer.width = texSize[0];
    this.framebuffer.height = texSize[1];

    const vertices = new Float32Array([-1, -1,
      1, -1, -1, 1,
      1, 1
    ]);
    const texCoords = new Float32Array([
      0, 0,
      1, 0,
      0, 1,
      1, 1
    ]);

    const texCoordOffset = vertices.byteLength;

    let buffer = this.buffer;
    if (!buffer) {
      buffer = this.buffer = gl.createBuffer();
      gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
      gl.bufferData(gl.ARRAY_BUFFER, vertices.byteLength + texCoords.byteLength, gl.STATIC_DRAW);
    } else {
      gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
    }

    gl.bufferSubData(gl.ARRAY_BUFFER, 0, vertices);
    gl.bufferSubData(gl.ARRAY_BUFFER, texCoordOffset, texCoords);

    const aPosLoc = gl.getAttribLocation(this.program, 'aPos');
    gl.enableVertexAttribArray(aPosLoc);
    gl.vertexAttribPointer(aPosLoc, 2, gl.FLOAT, false, 0, 0);
    const aTexCoordLoc = gl.getAttribLocation(this.program, 'aTexCoord');
    gl.enableVertexAttribArray(aTexCoordLoc);
    gl.vertexAttribPointer(aTexCoordLoc, 2, gl.FLOAT, false, 0, texCoordOffset);
    gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);

    let i = 0;
    gl.useProgram(this.program);
    for (let p in this.constants) {
      this.kernelConstants[i++].updateValue(this.constants[p]);
    }

    if (!this.immutable) {
      this._setupOutputTexture();
      if (
        this.subKernels !== null &&
        this.subKernels.length > 0
      ) {
        this._setupSubOutputTextures();
      }
    }
  }

  translateSource() {
    const functionBuilder = FunctionBuilder.fromKernel(this, WebGLFunctionNode, {
      fixIntegerDivisionAccuracy: this.fixIntegerDivisionAccuracy
    });
    this.translatedSource = functionBuilder.getPrototypeString('kernel');
    if (!this.graphical && !this.returnType) {
      this.returnType = functionBuilder.getKernelResultType();
    }
  }

  run() {
    const { kernelArguments } = this;
    const texSize = this.texSize;
    const gl = this.context;

    gl.useProgram(this.program);
    gl.scissor(0, 0, texSize[0], texSize[1]);

    if (this.dynamicOutput) {
      this.setUniform3iv('uOutputDim', this.threadDim);
      this.setUniform2iv('uTexSize', texSize);
    }

    this.setUniform2f('ratio', texSize[0] / this.maxTexSize[0], texSize[1] / this.maxTexSize[1]);

    for (let i = 0; i < kernelArguments.length; i++) {
      if (this.switchingKernels) return;
      kernelArguments[i].updateValue(arguments[i]);
    }

    if (this.plugins) {
      for (let i = 0; i < this.plugins.length; i++) {
        const plugin = this.plugins[i];
        if (plugin.onBeforeRun) {
          plugin.onBeforeRun(this);
        }
      }
    }

    if (this.graphical) {
      if (this.pipeline) {
        gl.bindRenderbuffer(gl.RENDERBUFFER, null);
        gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);
        if (!this.outputTexture || this.immutable) {
          this._setupOutputTexture();
        }
        gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
        return new Texture({
          texture: this.outputTexture,
          size: texSize,
          dimensions: this.threadDim,
          output: this.output,
          context: this.context,
          gpu: this.gpu,
          type: this.getReturnTextureType(),
        });
      }
      gl.bindRenderbuffer(gl.RENDERBUFFER, null);
      gl.bindFramebuffer(gl.FRAMEBUFFER, null);
      gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
      return;
    }

    gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);
    if (this.immutable) {
      this._setupOutputTexture();
    }

    if (this.subKernels !== null) {
      if (this.immutable) {
        this._setupSubOutputTextures();
      }
      this.extensions.WEBGL_draw_buffers.drawBuffersWEBGL(this.drawBuffersMap);
    }

    gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
  }

  getOutputTexture() {
    return this.outputTexture;
  }

  _setupOutputTexture() {
    const gl = this.context;
    const texSize = this.texSize;
    const texture = this.outputTexture = this.context.createTexture();
    gl.activeTexture(gl.TEXTURE0 + this.constantTextureCount + this.argumentTextureCount);
    gl.bindTexture(gl.TEXTURE_2D, texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    if (this.precision === 'single') {
      if (this.pipeline) {
        switch (this.returnType) {
          case 'Number':
          case 'Float':
          case 'Integer':
            if (this.optimizeFloatMemory) {
              gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
            } else {
              gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
            }
            break;
          case 'Array(2)':
            gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
            break;
          case 'Array(3)':
            gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
            break;
          case 'Array(4)':
            gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
            break;
          default:
            if (!this.graphical) {
              throw new Error('Unhandled return type');
            }
        }
      } else {
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
      }
    } else {
      gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
    }
    gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0);
  }

  _setupSubOutputTextures() {
    const gl = this.context;
    const texSize = this.texSize;
    this.drawBuffersMap = [gl.COLOR_ATTACHMENT0];
    this.subKernelOutputTextures = [];
    for (let i = 0; i < this.subKernels.length; i++) {
      const texture = this.context.createTexture();
      this.subKernelOutputTextures.push(texture);
      this.drawBuffersMap.push(gl.COLOR_ATTACHMENT0 + i + 1);
      gl.activeTexture(gl.TEXTURE0 + this.constantTextureCount + this.argumentTextureCount + i);
      gl.bindTexture(gl.TEXTURE_2D, texture);
      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
      if (this.precision === 'single') {
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
      } else {
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
      }
      gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0 + i + 1, gl.TEXTURE_2D, texture, 0);
    }
  }

  getArgumentTexture(name) {
    return this.getTextureCache(`ARGUMENT_${name}`);
  }

  getTextureCache(name) {
    if (this.textureCache.hasOwnProperty(name)) {
      return this.textureCache[name];
    }
    return this.textureCache[name] = this.context.createTexture();
  }

  detachTextureCache(name) {
    delete this.textureCache[name];
  }

  setUniform1f(name, value) {
    if (this.uniform1fCache.hasOwnProperty(name)) {
      const cache = this.uniform1fCache[name];
      if (value === cache) {
        return;
      }
    }
    this.uniform1fCache[name] = value;
    const loc = this.getUniformLocation(name);
    this.context.uniform1f(loc, value);
  }

  setUniform1i(name, value) {
    if (this.uniform1iCache.hasOwnProperty(name)) {
      const cache = this.uniform1iCache[name];
      if (value === cache) {
        return;
      }
    }
    this.uniform1iCache[name] = value;
    const loc = this.getUniformLocation(name);
    this.context.uniform1i(loc, value);
  }

  setUniform2f(name, value1, value2) {
    if (this.uniform2fCache.hasOwnProperty(name)) {
      const cache = this.uniform2fCache[name];
      if (
        value1 === cache[0] &&
        value2 === cache[1]
      ) {
        return;
      }
    }
    this.uniform2fCache[name] = [value1, value2];
    const loc = this.getUniformLocation(name);
    this.context.uniform2f(loc, value1, value2);
  }

  setUniform2fv(name, value) {
    if (this.uniform2fvCache.hasOwnProperty(name)) {
      const cache = this.uniform2fvCache[name];
      if (
        value[0] === cache[0] &&
        value[1] === cache[1]
      ) {
        return;
      }
    }
    this.uniform2fvCache[name] = value;
    const loc = this.getUniformLocation(name);
    this.context.uniform2fv(loc, value);
  }

  setUniform2iv(name, value) {
    if (this.uniform2ivCache.hasOwnProperty(name)) {
      const cache = this.uniform2ivCache[name];
      if (
        value[0] === cache[0] &&
        value[1] === cache[1]
      ) {
        return;
      }
    }
    this.uniform2ivCache[name] = value;
    const loc = this.getUniformLocation(name);
    this.context.uniform2iv(loc, value);
  }

  setUniform3fv(name, value) {
    if (this.uniform3fvCache.hasOwnProperty(name)) {
      const cache = this.uniform3fvCache[name];
      if (
        value[0] === cache[0] &&
        value[1] === cache[1] &&
        value[2] === cache[2]
      ) {
        return;
      }
    }
    this.uniform3fvCache[name] = value;
    const loc = this.getUniformLocation(name);
    this.context.uniform3fv(loc, value);
  }

  setUniform3iv(name, value) {
    if (this.uniform3ivCache.hasOwnProperty(name)) {
      const cache = this.uniform3ivCache[name];
      if (
        value[0] === cache[0] &&
        value[1] === cache[1] &&
        value[2] === cache[2]
      ) {
        return;
      }
    }
    this.uniform3ivCache[name] = value;
    const loc = this.getUniformLocation(name);
    this.context.uniform3iv(loc, value);
  }

  getUniformLocation(name) {
    if (this.programUniformLocationCache.hasOwnProperty(name)) {
      return this.programUniformLocationCache[name];
    }
    return this.programUniformLocationCache[name] = this.context.getUniformLocation(this.program, name);
  }

  _getFragShaderArtifactMap(args) {
    return {
      HEADER: this._getHeaderString(),
      LOOP_MAX: this._getLoopMaxString(),
      PLUGINS: this._getPluginsString(),
      CONSTANTS: this._getConstantsString(),
      DECODE32_ENDIANNESS: this._getDecode32EndiannessString(),
      ENCODE32_ENDIANNESS: this._getEncode32EndiannessString(),
      DIVIDE_WITH_INTEGER_CHECK: this._getDivideWithIntegerCheckString(),
      MAIN_CONSTANTS: this._getMainConstantsString(),
      MAIN_ARGUMENTS: this._getMainArgumentsString(args),
      KERNEL: this.getKernelString(),
      MAIN_RESULT: this.getMainResultString()
    };
  }

  _getHeaderString() {
    return (
      this.subKernels !== null ?
      '#extension GL_EXT_draw_buffers : require\n' :
      ''
    );
  }

  _getLoopMaxString() {
    return (
      this.loopMaxIterations ?
      ` ${parseInt(this.loopMaxIterations)};\n` :
      ' 1000;\n'
    );
  }

  _getPluginsString() {
    if (!this.plugins) return '\n';
    return this.plugins.map(plugin => plugin.source && this.source.match(plugin.functionMatch) ? plugin.source : '').join('\n');
  }

  _getConstantsString() {
    const result = [];
    const { threadDim, texSize } = this;
    if (this.dynamicOutput) {
      result.push(
        'uniform ivec3 uOutputDim',
        'uniform ivec2 uTexSize'
      );
    } else {
      result.push(
        `ivec3 uOutputDim = ivec3(${threadDim[0]}, ${threadDim[1]}, ${threadDim[2]})`,
        `ivec2 uTexSize = ivec2(${texSize[0]}, ${texSize[1]})`
      );
    }
    return utils.linesToString(result);
  }

  _getTextureCoordinate() {
    const subKernels = this.subKernels;
    if (subKernels === null || subKernels.length < 1) {
      return 'varying vec2 vTexCoord;\n';
    } else {
      return 'out vec2 vTexCoord;\n';
    }
  }

  _getDecode32EndiannessString() {
    return (
      this.endianness === 'LE' ?
      '' :
      '  texel.rgba = texel.abgr;\n'
    );
  }

  _getEncode32EndiannessString() {
    return (
      this.endianness === 'LE' ?
      '' :
      '  texel.rgba = texel.abgr;\n'
    );
  }

  _getDivideWithIntegerCheckString() {
    return this.fixIntegerDivisionAccuracy ?
      `float div_with_int_check(float x, float y) {
  if (floor(x) == x && floor(y) == y && integerMod(x, y) == 0.0) {
    return float(int(x)/int(y));
  }
  return x / y;
}` :
      '';
  }

  _getMainArgumentsString(args) {
    const results = [];
    const { argumentNames } = this;
    for (let i = 0; i < argumentNames.length; i++) {
      results.push(this.kernelArguments[i].getSource(args[i]));
    }
    return results.join('');
  }

  _getMainConstantsString() {
    const result = [];
    const { constants } = this;
    if (constants) {
      let i = 0;
      for (const name in constants) {
        result.push(this.kernelConstants[i++].getSource(this.constants[name]));
      }
    }
    return result.join('');
  }

  getKernelString() {
    let kernelResultDeclaration;
    switch (this.returnType) {
      case 'Array(2)':
        kernelResultDeclaration = 'vec2 kernelResult';
        break;
      case 'Array(3)':
        kernelResultDeclaration = 'vec3 kernelResult';
        break;
      case 'Array(4)':
        kernelResultDeclaration = 'vec4 kernelResult';
        break;
      case 'LiteralInteger':
      case 'Float':
      case 'Number':
      case 'Integer':
        kernelResultDeclaration = 'float kernelResult';
        break;
      default:
        if (this.graphical) {
          kernelResultDeclaration = 'float kernelResult';
        } else {
          throw new Error(`unrecognized output type "${ this.returnType }"`);
        }
    }

    const result = [];
    const subKernels = this.subKernels;
    if (subKernels !== null) {
      result.push(
        kernelResultDeclaration
      );
      for (let i = 0; i < subKernels.length; i++) {
        result.push(
          `float subKernelResult_${ subKernels[i].name } = 0.0`
        );
      }
    } else {
      result.push(
        kernelResultDeclaration
      );
    }

    return utils.linesToString(result) + this.translatedSource;
  }

  getMainResultGraphical() {
    return utils.linesToString([
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  gl_FragColor = actualColor',
    ]);
  }

  getMainResultPackedPixels() {
    switch (this.returnType) {
      case 'LiteralInteger':
      case 'Number':
      case 'Integer':
      case 'Float':
        return utils.linesToString(this.getMainResultKernelPackedPixels()) +
          utils.linesToString(this.getMainResultSubKernelPackedPixels());
      default:
        throw new Error(`packed output only usable with Numbers, "${this.returnType}" specified`);
    }
  }

  getMainResultKernelPackedPixels() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  gl_FragData[0] = encode32(kernelResult)'
    ];
  }

  getMainResultSubKernelPackedPixels() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; i++) {
      result.push(
        `  gl_FragData[${i + 1}] = encode32(subKernelResult_${this.subKernels[i].name})`
      );
    }
    return result;
  }

  getMainResultMemoryOptimizedFloats() {
    const result = [
      '  index *= 4',
    ];

    switch (this.returnType) {
      case 'Number':
      case 'Integer':
      case 'Float':
        const channels = ['r', 'g', 'b', 'a'];
        for (let i = 0; i < channels.length; i++) {
          const channel = channels[i];
          this.getMainResultKernelMemoryOptimizedFloats(result, channel);
          this.getMainResultSubKernelMemoryOptimizedFloats(result, channel);
          if (i + 1 < channels.length) {
            result.push('  index += 1');
          }
        }
        break;
      default:
        throw new Error(`optimized output only usable with Numbers, ${this.returnType} specified`);
    }

    return utils.linesToString(result);
  }

  getMainResultKernelMemoryOptimizedFloats(result, channel) {
    result.push(
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      `  gl_FragData[0].${channel} = kernelResult`,
    );
  }

  getMainResultSubKernelMemoryOptimizedFloats(result, channel) {
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; i++) {
      result.push(
        `  gl_FragData[${i + 1}].${channel} = subKernelResult_${this.subKernels[i].name}`,
      );
    }
  }

  getMainResultKernelNumberTexture() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  gl_FragData[0][0] = kernelResult',
    ];
  }

  getMainResultSubKernelNumberTexture() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; ++i) {
      result.push(
        `  gl_FragData[${i + 1}][0] = subKernelResult_${this.subKernels[i].name}`,
      );
    }
    return result;
  }

  getMainResultKernelArray2Texture() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  gl_FragData[0][0] = kernelResult[0]',
      '  gl_FragData[0][1] = kernelResult[1]',
    ];
  }

  getMainResultSubKernelArray2Texture() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; ++i) {
      result.push(
        `  gl_FragData[${i + 1}][0] = subKernelResult_${this.subKernels[i].name}[0]`,
        `  gl_FragData[${i + 1}][1] = subKernelResult_${this.subKernels[i].name}[1]`,
      );
    }
    return result;
  }

  getMainResultKernelArray3Texture() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  gl_FragData[0][0] = kernelResult[0]',
      '  gl_FragData[0][1] = kernelResult[1]',
      '  gl_FragData[0][2] = kernelResult[2]',
    ];
  }

  getMainResultSubKernelArray3Texture() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; ++i) {
      result.push(
        `  gl_FragData[${i + 1}][0] = subKernelResult_${this.subKernels[i].name}[0]`,
        `  gl_FragData[${i + 1}][1] = subKernelResult_${this.subKernels[i].name}[1]`,
        `  gl_FragData[${i + 1}][2] = subKernelResult_${this.subKernels[i].name}[2]`,
      );
    }
    return result;
  }

  getMainResultKernelArray4Texture() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  gl_FragData[0] = kernelResult',
    ];
  }

  getMainResultSubKernelArray4Texture() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; ++i) {
      result.push(
        `  gl_FragData[${i + 1}] = subKernelResult_${this.subKernels[i].name}`,
      );
    }
    return result;
  }

  replaceArtifacts(src, map) {
    return src.replace(/[ ]*__([A-Z]+[0-9]*([_]?[A-Z])*)__;\n/g, (match, artifact) => {
      if (map.hasOwnProperty(artifact)) {
        return map[artifact];
      }
      throw `unhandled artifact ${artifact}`;
    });
  }

  getFragmentShader(args) {
    if (this.compiledFragmentShader !== null) {
      return this.compiledFragmentShader;
    }
    return this.compiledFragmentShader = this.replaceArtifacts(this.constructor.fragmentShader, this._getFragShaderArtifactMap(args));
  }

  getVertexShader(args) {
    if (this.compiledVertexShader !== null) {
      return this.compiledVertexShader;
    }
    return this.compiledVertexShader = this.constructor.vertexShader;
  }

  toString() {
    const setupContextString = utils.linesToString([
      `const gl = context`,
    ]);
    return glKernelString(this.constructor, arguments, this, setupContextString);
  }

  destroy(removeCanvasReferences) {
    if (this.outputTexture) {
      this.context.deleteTexture(this.outputTexture);
    }
    if (this.buffer) {
      this.context.deleteBuffer(this.buffer);
    }
    if (this.framebuffer) {
      this.context.deleteFramebuffer(this.framebuffer);
    }
    if (this.vertShader) {
      this.context.deleteShader(this.vertShader);
    }
    if (this.fragShader) {
      this.context.deleteShader(this.fragShader);
    }
    if (this.program) {
      this.context.deleteProgram(this.program);
    }

    const keys = Object.keys(this.textureCache);

    for (let i = 0; i < keys.length; i++) {
      const name = keys[i];
      this.context.deleteTexture(this.textureCache[name]);
    }

    if (this.subKernelOutputTextures) {
      for (let i = 0; i < this.subKernelOutputTextures.length; i++) {
        this.context.deleteTexture(this.subKernelOutputTextures[i]);
      }
    }
    if (removeCanvasReferences) {
      const idx = canvases.indexOf(this.canvas);
      if (idx >= 0) {
        canvases[idx] = null;
        maxTexSizes[idx] = null;
      }
    }
    this.destroyExtensions();
    delete this.context;
    delete this.canvas;
  }

  destroyExtensions() {
    this.extensions.OES_texture_float = null;
    this.extensions.OES_texture_float_linear = null;
    this.extensions.OES_element_index_uint = null;
    this.extensions.WEBGL_draw_buffers = null;
  }

  static destroyContext(context) {
    const extension = context.getExtension('WEBGL_lose_context');
    if (extension) {
      extension.loseContext();
    }
  }

  toJSON() {
    const json = super.toJSON();
    json.functionNodes = FunctionBuilder.fromKernel(this, WebGLFunctionNode).toJSON();
    return json;
  }
}

module.exports = {
  WebGLKernel
};
},{"../../plugins/triangle-noise":68,"../../texture":69,"../../utils":70,"../function-builder":9,"../gl/kernel":12,"../gl/kernel-string":11,"./fragment-shader":16,"./function-node":17,"./kernel-value-maps":18,"./vertex-shader":38}],38:[function(require,module,exports){
const vertexShader = `precision highp float;
precision highp int;
precision highp sampler2D;

attribute vec2 aPos;
attribute vec2 aTexCoord;

varying vec2 vTexCoord;
uniform vec2 ratio;

void main(void) {
  gl_Position = vec4((aPos + vec2(1)) * ratio + vec2(-1), 0, 1);
  vTexCoord = aTexCoord;
}`;

module.exports = {
  vertexShader
};
},{}],39:[function(require,module,exports){
const fragmentShader = `#version 300 es
__HEADER__;
precision highp float;
precision highp int;
precision highp sampler2D;

const int LOOP_MAX = __LOOP_MAX__;

__PLUGINS__;
__CONSTANTS__;

in vec2 vTexCoord;

vec2 integerMod(vec2 x, float y) {
  vec2 res = floor(mod(x, y));
  return res * step(1.0 - floor(y), -res);
}

vec3 integerMod(vec3 x, float y) {
  vec3 res = floor(mod(x, y));
  return res * step(1.0 - floor(y), -res);
}

vec4 integerMod(vec4 x, vec4 y) {
  vec4 res = floor(mod(x, y));
  return res * step(1.0 - floor(y), -res);
}

float integerMod(float x, float y) {
  float res = floor(mod(x, y));
  return res * (res > floor(y) - 1.0 ? 0.0 : 1.0);
}

int integerMod(int x, int y) {
  return x - (y * int(x/y));
}

__DIVIDE_WITH_INTEGER_CHECK__;

// Here be dragons!
// DO NOT OPTIMIZE THIS CODE
// YOU WILL BREAK SOMETHING ON SOMEBODY\'S MACHINE
// LEAVE IT AS IT IS, LEST YOU WASTE YOUR OWN TIME
const vec2 MAGIC_VEC = vec2(1.0, -256.0);
const vec4 SCALE_FACTOR = vec4(1.0, 256.0, 65536.0, 0.0);
const vec4 SCALE_FACTOR_INV = vec4(1.0, 0.00390625, 0.0000152587890625, 0.0); // 1, 1/256, 1/65536
float decode32(vec4 texel) {
  __DECODE32_ENDIANNESS__;
  texel *= 255.0;
  vec2 gte128;
  gte128.x = texel.b >= 128.0 ? 1.0 : 0.0;
  gte128.y = texel.a >= 128.0 ? 1.0 : 0.0;
  float exponent = 2.0 * texel.a - 127.0 + dot(gte128, MAGIC_VEC);
  float res = exp2(round(exponent));
  texel.b = texel.b - 128.0 * gte128.x;
  res = dot(texel, SCALE_FACTOR) * exp2(round(exponent-23.0)) + res;
  res *= gte128.y * -2.0 + 1.0;
  return res;
}

float decode16(vec4 texel, int index) {
  int channel = integerMod(index, 2);
  return texel[channel*2] * 255.0 + texel[channel*2 + 1] * 65280.0;
}

float decode8(vec4 texel, int index) {
  int channel = integerMod(index, 4);
  return texel[channel] * 255.0;
}

vec4 encode32(float f) {
  float F = abs(f);
  float sign = f < 0.0 ? 1.0 : 0.0;
  float exponent = floor(log2(F));
  float mantissa = (exp2(-exponent) * F);
  // exponent += floor(log2(mantissa));
  vec4 texel = vec4(F * exp2(23.0 - exponent)) * SCALE_FACTOR_INV;
  texel.rg = integerMod(texel.rg, 256.0);
  texel.b = integerMod(texel.b, 128.0);
  texel.a = exponent * 0.5 + 63.5;
  texel.ba += vec2(integerMod(exponent+127.0, 2.0), sign) * 128.0;
  texel = floor(texel);
  texel *= 0.003921569; // 1/255
  __ENCODE32_ENDIANNESS__;
  return texel;
}
// Dragons end here

int index;
ivec3 threadId;

ivec3 indexTo3D(int idx, ivec3 texDim) {
  int z = int(idx / (texDim.x * texDim.y));
  idx -= z * int(texDim.x * texDim.y);
  int y = int(idx / texDim.x);
  int x = int(integerMod(idx, texDim.x));
  return ivec3(x, y, z);
}

float get32(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + texDim.x * (xyz.y + texDim.y * xyz.z);
  int w = texSize.x;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  vec4 texel = texture(tex, st / vec2(texSize));
  return decode32(texel);
}

float get16(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + (texDim.x * (xyz.y + (texDim.y * xyz.z)));
  int w = texSize.x * 2;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  vec4 texel = texture(tex, st / vec2(texSize.x * 2, texSize.y));
  return decode16(texel, index);
}

float get8(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + (texDim.x * (xyz.y + (texDim.y * xyz.z)));
  int w = texSize.x * 4;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  vec4 texel = texture(tex, st / vec2(texSize.x * 4, texSize.y));
  return decode8(texel, index);
}

float getMemoryOptimized32(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + (texDim.x * (xyz.y + (texDim.y * xyz.z)));
  int channel = integerMod(index, 4);
  index = index / 4;
  int w = texSize.x;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  index = index / 4;
  vec4 texel = texture(tex, st / vec2(texSize));
  return texel[channel];
}

vec4 getImage2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + texDim.x * (xyz.y + texDim.y * xyz.z);
  int w = texSize.x;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  return texture(tex, st / vec2(texSize));
}

vec4 getImage3D(sampler2DArray tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  ivec3 xyz = ivec3(x, y, z);
  int index = xyz.x + texDim.x * (xyz.y + texDim.y * xyz.z);
  int w = texSize.x;
  vec2 st = vec2(float(integerMod(index, w)), float(index / w)) + 0.5;
  return texture(tex, vec3(st / vec2(texSize), z));
}

float getFloatFromSampler2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  vec4 result = getImage2D(tex, texSize, texDim, z, y, x);
  return result[0];
}

vec2 getVec2FromSampler2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  vec4 result = getImage2D(tex, texSize, texDim, z, y, x);
  return vec2(result[0], result[1]);
}

vec3 getVec3FromSampler2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  vec4 result = getImage2D(tex, texSize, texDim, z, y, x);
  return vec3(result[0], result[1], result[2]);
}

vec4 getVec4FromSampler2D(sampler2D tex, ivec2 texSize, ivec3 texDim, int z, int y, int x) {
  return getImage2D(tex, texSize, texDim, z, y, x);
}

vec4 actualColor;
void color(float r, float g, float b, float a) {
  actualColor = vec4(r,g,b,a);
}

void color(float r, float g, float b) {
  color(r,g,b,1.0);
}

__MAIN_CONSTANTS__;
__MAIN_ARGUMENTS__;
__KERNEL__;

void main(void) {
  index = int(vTexCoord.s * float(uTexSize.x)) + int(vTexCoord.t * float(uTexSize.y)) * uTexSize.x;
  __MAIN_RESULT__;
}`;

module.exports = {
  fragmentShader
};
},{}],40:[function(require,module,exports){
const { WebGLFunctionNode } = require('../web-gl/function-node');

class WebGL2FunctionNode extends WebGLFunctionNode {

  astIdentifierExpression(idtNode, retArr) {
    if (idtNode.type !== 'Identifier') {
      throw this.astErrorOutput(
        'IdentifierExpression - not an Identifier',
        idtNode
      );
    }

    const type = this.getType(idtNode);

    if (idtNode.name === 'Infinity') {
      retArr.push('intBitsToFloat(2139095039)');
    } else if (type === 'Boolean') {
      if (this.argumentNames.indexOf(idtNode.name) > -1) {
        retArr.push(`bool(user_${idtNode.name})`);
      } else {
        retArr.push(`user_${idtNode.name}`);
      }
    } else {
      const userArgumentName = this.getKernelArgumentName(idtNode.name);
      if (userArgumentName) {
        retArr.push(`user_${userArgumentName}`);
      } else {
        retArr.push(`user_${idtNode.name}`);
      }
    }

    return retArr;
  }
}

module.exports = {
  WebGL2FunctionNode
};
},{"../web-gl/function-node":17}],41:[function(require,module,exports){
const { WebGL2KernelValueBoolean } = require('./kernel-value/boolean');
const { WebGL2KernelValueFloat } = require('./kernel-value/float');
const { WebGL2KernelValueInteger } = require('./kernel-value/integer');

const { WebGL2KernelValueHTMLImage } = require('./kernel-value/html-image');
const { WebGL2KernelValueDynamicHTMLImage } = require('./kernel-value/dynamic-html-image');

const { WebGL2KernelValueHtmlImageArray } = require('./kernel-value/html-image-array');
const { WebGL2KernelValueDynamicHtmlImageArray } = require('./kernel-value/dynamic-html-image-array');

const { WebGL2KernelValueSingleInput } = require('./kernel-value/single-input');
const { WebGL2KernelValueDynamicSingleInput } = require('./kernel-value/dynamic-single-input');

const { WebGL2KernelValueUnsignedInput } = require('./kernel-value/unsigned-input');
const { WebGL2KernelValueDynamicUnsignedInput } = require('./kernel-value/dynamic-unsigned-input');

const { WebGL2KernelValueMemoryOptimizedNumberTexture } = require('./kernel-value/memory-optimized-number-texture');
const { WebGL2KernelValueDynamicMemoryOptimizedNumberTexture } = require('./kernel-value/dynamic-memory-optimized-number-texture');

const { WebGL2KernelValueNumberTexture } = require('./kernel-value/number-texture');
const { WebGL2KernelValueDynamicNumberTexture } = require('./kernel-value/dynamic-number-texture');

const { WebGL2KernelValueSingleArray } = require('./kernel-value/single-array');
const { WebGL2KernelValueDynamicSingleArray } = require('./kernel-value/dynamic-single-array');

const { WebGL2KernelValueUnsignedArray } = require('./kernel-value/unsigned-array');
const { WebGL2KernelValueDynamicUnsignedArray } = require('./kernel-value/dynamic-unsigned-array');

const kernelValueMaps = {
  unsigned: {
    dynamic: {
      'Boolean': WebGL2KernelValueBoolean,
      'Interger': WebGL2KernelValueInteger,
      'Float': WebGL2KernelValueFloat,
      'Array': WebGL2KernelValueDynamicUnsignedArray,
      'Input': WebGL2KernelValueDynamicUnsignedInput,
      'NumberTexture': WebGL2KernelValueDynamicNumberTexture,
      'ArrayTexture(1)': WebGL2KernelValueDynamicNumberTexture,
      'ArrayTexture(2)': WebGL2KernelValueDynamicNumberTexture,
      'ArrayTexture(3)': WebGL2KernelValueDynamicNumberTexture,
      'ArrayTexture(4)': WebGL2KernelValueDynamicNumberTexture,
      'MemoryOptimizedNumberTexture': WebGL2KernelValueDynamicMemoryOptimizedNumberTexture,
      'HTMLImage': WebGL2KernelValueDynamicHTMLImage,
      'HTMLImageArray': WebGL2KernelValueDynamicHtmlImageArray,
    },
    static: {
      'Boolean': WebGL2KernelValueBoolean,
      'Interger': WebGL2KernelValueInteger,
      'Float': WebGL2KernelValueFloat,
      'Integer': WebGL2KernelValueInteger,
      'Array': WebGL2KernelValueUnsignedArray,
      'Input': WebGL2KernelValueUnsignedInput,
      'NumberTexture': WebGL2KernelValueNumberTexture,
      'ArrayTexture(1)': WebGL2KernelValueNumberTexture,
      'ArrayTexture(2)': WebGL2KernelValueNumberTexture,
      'ArrayTexture(3)': WebGL2KernelValueNumberTexture,
      'ArrayTexture(4)': WebGL2KernelValueNumberTexture,
      'MemoryOptimizedNumberTexture': WebGL2KernelValueDynamicMemoryOptimizedNumberTexture,
      'HTMLImage': WebGL2KernelValueHTMLImage,
      'HTMLImageArray': WebGL2KernelValueHtmlImageArray,
    }
  },
  single: {
    dynamic: {
      'Boolean': WebGL2KernelValueBoolean,
      'Interger': WebGL2KernelValueInteger,
      'Float': WebGL2KernelValueFloat,
      'Array': WebGL2KernelValueDynamicSingleArray,
      'Input': WebGL2KernelValueDynamicSingleInput,
      'NumberTexture': WebGL2KernelValueDynamicNumberTexture,
      'ArrayTexture(1)': WebGL2KernelValueDynamicNumberTexture,
      'ArrayTexture(2)': WebGL2KernelValueDynamicNumberTexture,
      'ArrayTexture(3)': WebGL2KernelValueDynamicNumberTexture,
      'ArrayTexture(4)': WebGL2KernelValueDynamicNumberTexture,
      'MemoryOptimizedNumberTexture': WebGL2KernelValueDynamicMemoryOptimizedNumberTexture,
      'HTMLImage': WebGL2KernelValueDynamicHTMLImage,
      'HTMLImageArray': WebGL2KernelValueDynamicHtmlImageArray,
    },
    static: {
      'Boolean': WebGL2KernelValueBoolean,
      'Interger': WebGL2KernelValueInteger,
      'Float': WebGL2KernelValueFloat,
      'Integer': WebGL2KernelValueInteger,
      'Array': WebGL2KernelValueSingleArray,
      'Input': WebGL2KernelValueSingleInput,
      'NumberTexture': WebGL2KernelValueNumberTexture,
      'ArrayTexture(1)': WebGL2KernelValueNumberTexture,
      'ArrayTexture(2)': WebGL2KernelValueNumberTexture,
      'ArrayTexture(3)': WebGL2KernelValueNumberTexture,
      'ArrayTexture(4)': WebGL2KernelValueNumberTexture,
      'MemoryOptimizedNumberTexture': WebGL2KernelValueMemoryOptimizedNumberTexture,
      'HTMLImage': WebGL2KernelValueHTMLImage,
      'HTMLImageArray': WebGL2KernelValueHtmlImageArray,
    }
  },
};

function lookupKernelValueType(type, dynamic, precision) {
  if (!type) {
    throw new Error('type missing');
  }
  if (!dynamic) {
    throw new Error('dynamic missing');
  }
  if (!precision) {
    throw new Error('precision missing');
  }
  const types = kernelValueMaps[precision][dynamic];
  if (types[type] === false) {
    return null;
  } else if (types[type] === undefined) {
    throw new Error(`Could not find a KernelValue for ${ type }`);
  }
  return types[type];
}

module.exports = {
  lookupKernelValueType
};
},{"./kernel-value/boolean":42,"./kernel-value/dynamic-html-image":44,"./kernel-value/dynamic-html-image-array":43,"./kernel-value/dynamic-memory-optimized-number-texture":45,"./kernel-value/dynamic-number-texture":46,"./kernel-value/dynamic-single-array":47,"./kernel-value/dynamic-single-input":48,"./kernel-value/dynamic-unsigned-array":49,"./kernel-value/dynamic-unsigned-input":50,"./kernel-value/float":51,"./kernel-value/html-image":53,"./kernel-value/html-image-array":52,"./kernel-value/integer":54,"./kernel-value/memory-optimized-number-texture":55,"./kernel-value/number-texture":56,"./kernel-value/single-array":57,"./kernel-value/single-input":58,"./kernel-value/unsigned-array":59,"./kernel-value/unsigned-input":60}],42:[function(require,module,exports){
const { WebGLKernelValueBoolean } = require('../../web-gl/kernel-value/boolean');

class WebGL2KernelValueBoolean extends WebGLKernelValueBoolean {}

module.exports = {
  WebGL2KernelValueBoolean
};
},{"../../web-gl/kernel-value/boolean":19}],43:[function(require,module,exports){
const { WebGL2KernelValueHtmlImageArray } = require('./html-image-array');

class WebGL2KernelValueDynamicHtmlImageArray extends WebGL2KernelValueHtmlImageArray {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2DArray ${this.id}`,
      `uniform highp ivec2 ${this.sizeId}`,
      `uniform highp ivec3 ${this.dimensionsId}`,
    ]);
  }

  updateValue(images) {
    this.dimensions = [images[0].width, images[0].height, images.length];
    this.textureSize = [images[0].width, images[0].height];
    this.kernel.setUniform3iv(this.dimensionsId, this.dimensions);
    this.kernel.setUniform2iv(this.sizeId, this.textureSize);
    super.updateValue(images);
  }
}

module.exports = {
  WebGL2KernelValueDynamicHtmlImageArray
};
},{"./html-image-array":52}],44:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueDynamicInput } = require('../../web-gl/kernel-value/dynamic-html-image');

class WebGL2KernelValueDynamicInput extends WebGLKernelValueDynamicInput {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `uniform highp ivec2 ${this.sizeId}`,
      `uniform highp ivec3 ${this.dimensionsId}`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueDynamicInput
};
},{"../../../utils":70,"../../web-gl/kernel-value/dynamic-html-image":20}],45:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueDynamicMemoryOptimizedNumberTexture } = require('../../web-gl/kernel-value/dynamic-memory-optimized-number-texture');

class WebGL2KernelValueDynamicMemoryOptimizedNumberTexture extends WebGLKernelValueDynamicMemoryOptimizedNumberTexture {
  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `uniform ivec2 ${this.sizeId}`,
      `uniform ivec3 ${this.dimensionsId}`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueDynamicMemoryOptimizedNumberTexture
};
},{"../../../utils":70,"../../web-gl/kernel-value/dynamic-memory-optimized-number-texture":21}],46:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueDynamicNumberTexture } = require('../../web-gl/kernel-value/dynamic-number-texture');

class WebGL2KernelValueDynamicNumberTexture extends WebGLKernelValueDynamicNumberTexture {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `uniform highp ivec2 ${this.sizeId}`,
      `uniform highp ivec3 ${this.dimensionsId}`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueDynamicNumberTexture
};
},{"../../../utils":70,"../../web-gl/kernel-value/dynamic-number-texture":22}],47:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueDynamicSingleArray } = require('../../web-gl/kernel-value/dynamic-single-array');

class WebGL2KernelValueDynamicSingleArray extends WebGLKernelValueDynamicSingleArray {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `uniform highp ivec2 ${this.sizeId}`,
      `uniform highp ivec3 ${this.dimensionsId}`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueDynamicSingleArray
};
},{"../../../utils":70,"../../web-gl/kernel-value/dynamic-single-array":23}],48:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueDynamicSingleInput } = require('../../web-gl/kernel-value/dynamic-single-input');

class WebGL2KernelValueDynamicSingleInput extends WebGLKernelValueDynamicSingleInput {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `uniform highp ivec2 ${this.sizeId}`,
      `uniform highp ivec3 ${this.dimensionsId}`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueDynamicSingleInput
};
},{"../../../utils":70,"../../web-gl/kernel-value/dynamic-single-input":24}],49:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueDynamicUnsignedArray } = require('../../web-gl/kernel-value/dynamic-unsigned-array');

class WebGL2KernelValueDynamicUnsignedArray extends WebGLKernelValueDynamicUnsignedArray {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `uniform highp ivec2 ${this.sizeId}`,
      `uniform highp ivec3 ${this.dimensionsId}`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueDynamicUnsignedArray
};
},{"../../../utils":70,"../../web-gl/kernel-value/dynamic-unsigned-array":25}],50:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueDynamicUnsignedInput } = require('../../web-gl/kernel-value/dynamic-unsigned-input');

class WebGL2KernelValueDynamicUnsignedInput extends WebGLKernelValueDynamicUnsignedInput {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `uniform highp ivec2 ${this.sizeId}`,
      `uniform highp ivec3 ${this.dimensionsId}`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueDynamicUnsignedInput
};
},{"../../../utils":70,"../../web-gl/kernel-value/dynamic-unsigned-input":26}],51:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueFloat } = require('../../web-gl/kernel-value/float');

class WebGL2KernelValueFloat extends WebGLKernelValueFloat {}

module.exports = {
  WebGL2KernelValueFloat
};
},{"../../../utils":70,"../../web-gl/kernel-value/float":27}],52:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValue } = require('../../web-gl/kernel-value/index');

class WebGL2KernelValueHtmlImageArray extends WebGLKernelValue {
  constructor(value, settings) {
    super(value, settings);
    this.requestTexture();
    this.dimensions = [value[0].width, value[0].height, value.length];
    this.textureSize = [value[0].width, value[0].height];
  }

  getSource() {
    return utils.linesToString([
      `uniform highp sampler2DArray ${this.id}`,
      `highp ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `highp ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(images) {
    const { context: gl } = this;
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D_ARRAY, this.texture);
    gl.texParameteri(gl.TEXTURE_2D_ARRAY, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D_ARRAY, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, true);
    gl.texImage3D(
      gl.TEXTURE_2D_ARRAY,
      0,
      gl.RGBA,
      images[0].width,
      images[0].height,
      images.length,
      0,
      gl.RGBA,
      gl.UNSIGNED_BYTE,
      null
    );
    for (let i = 0; i < images.length; i++) {
      const xOffset = 0;
      const yOffset = 0;
      const imageDepth = 1;
      gl.texSubImage3D(
        gl.TEXTURE_2D_ARRAY,
        0,
        xOffset,
        yOffset,
        i,
        images[i].width,
        images[i].height,
        imageDepth,
        gl.RGBA,
        gl.UNSIGNED_BYTE,
        this.uploadValue = images[i]
      );
    }
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGL2KernelValueHtmlImageArray
};
},{"../../../utils":70,"../../web-gl/kernel-value/index":29}],53:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueHTMLImage } = require('../../web-gl/kernel-value/html-image');

class WebGL2KernelValueHTMLImage extends WebGLKernelValueHTMLImage {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `highp ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `highp ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueHTMLImage
};
},{"../../../utils":70,"../../web-gl/kernel-value/html-image":28}],54:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueInteger } = require('../../web-gl/kernel-value/integer');

class WebGL2KernelValueInteger extends WebGLKernelValueInteger {
  getSource(value) {
    if (this.origin === 'constants') {
      return `const highp int ${this.id} = ${ parseInt(value) };\n`;
    }
    return `uniform highp int ${this.id};\n`;
  }

  updateValue(value) {
    if (this.origin === 'constants') return;
    this.kernel.setUniform1i(this.id, this.uploadValue = value);
  }
}

module.exports = {
  WebGL2KernelValueInteger
};
},{"../../../utils":70,"../../web-gl/kernel-value/integer":30}],55:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueMemoryOptimizedNumberTexture } = require('../../web-gl/kernel-value/memory-optimized-number-texture');

class WebGL2KernelValueMemoryOptimizedNumberTexture extends WebGLKernelValueMemoryOptimizedNumberTexture {
  getSource() {
    return utils.linesToString([
      `uniform sampler2D ${this.id}`,
      `highp ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `highp ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueMemoryOptimizedNumberTexture
};
},{"../../../utils":70,"../../web-gl/kernel-value/memory-optimized-number-texture":31}],56:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueNumberTexture } = require('../../web-gl/kernel-value/number-texture');

class WebGL2KernelValueNumberTexture extends WebGLKernelValueNumberTexture {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `highp ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `highp ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueNumberTexture
};
},{"../../../utils":70,"../../web-gl/kernel-value/number-texture":32}],57:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueSingleArray } = require('../../web-gl/kernel-value/single-array');

class WebGL2KernelValueSingleArray extends WebGLKernelValueSingleArray {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `highp ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `highp ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(value) {
    if (value.constructor !== this.initialValueConstructor) {
      this.onUpdateValueMismatch();
      return;
    }
    const { context: gl } = this;
    utils.flattenTo(value, this.uploadValue);
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D, this.texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA32F, this.textureSize[0], this.textureSize[1], 0, gl.RGBA, gl.FLOAT, this.uploadValue);
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGL2KernelValueSingleArray
};
},{"../../../utils":70,"../../web-gl/kernel-value/single-array":33}],58:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueSingleInput } = require('../../web-gl/kernel-value/single-input');

class WebGL2KernelValueSingleInput extends WebGLKernelValueSingleInput {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `highp ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `highp ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }

  updateValue(input) {
    const { context: gl } = this;
    utils.flattenTo(input.value, this.uploadValue);
    gl.activeTexture(this.contextHandle);
    gl.bindTexture(gl.TEXTURE_2D, this.texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA32F, this.textureSize[0], this.textureSize[1], 0, gl.RGBA, gl.FLOAT, this.uploadValue);
    this.kernel.setUniform1i(this.id, this.index);
  }
}

module.exports = {
  WebGL2KernelValueSingleInput
};
},{"../../../utils":70,"../../web-gl/kernel-value/single-input":34}],59:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueUnsignedArray } = require('../../web-gl/kernel-value/unsigned-array');

class WebGL2KernelValueUnsignedArray extends WebGLKernelValueUnsignedArray {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `highp ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `highp ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueUnsignedArray
};
},{"../../../utils":70,"../../web-gl/kernel-value/unsigned-array":35}],60:[function(require,module,exports){
const { utils } = require('../../../utils');
const { WebGLKernelValueUnsignedInput } = require('../../web-gl/kernel-value/unsigned-input');

class WebGL2KernelValueUnsignedInput extends WebGLKernelValueUnsignedInput {
  getSource() {
    return utils.linesToString([
      `uniform highp sampler2D ${this.id}`,
      `highp ivec2 ${this.sizeId} = ivec2(${this.textureSize[0]}, ${this.textureSize[1]})`,
      `highp ivec3 ${this.dimensionsId} = ivec3(${this.dimensions[0]}, ${this.dimensions[1]}, ${this.dimensions[2]})`,
    ]);
  }
}

module.exports = {
  WebGL2KernelValueUnsignedInput
};
},{"../../../utils":70,"../../web-gl/kernel-value/unsigned-input":36}],61:[function(require,module,exports){
const { WebGLKernel } = require('../web-gl/kernel');
const { WebGL2FunctionNode } = require('./function-node');
const { FunctionBuilder } = require('../function-builder');
const { utils } = require('../../utils');
const { Texture } = require('../../texture');
const { fragmentShader } = require('./fragment-shader');
const { vertexShader } = require('./vertex-shader');
const { lookupKernelValueType } = require('./kernel-value-maps');

let isSupported = null;
let testCanvas = null;
let testContext = null;
let testExtensions = null;
let features = null;

class WebGL2Kernel extends WebGLKernel {
  static get isSupported() {
    if (isSupported !== null) {
      return isSupported;
    }
    this.setupFeatureChecks();
    isSupported = this.isContextMatch(testContext);
    return isSupported;
  }

  static setupFeatureChecks() {
    if (typeof document !== 'undefined') {
      testCanvas = document.createElement('canvas');
    } else if (typeof OffscreenCanvas !== 'undefined') {
      testCanvas = new OffscreenCanvas(0, 0);
    }
    if (!testCanvas) return;
    testContext = testCanvas.getContext('webgl2');
    if (!testContext || !testContext.getExtension) return;
    testExtensions = {
      EXT_color_buffer_float: testContext.getExtension('EXT_color_buffer_float'),
      OES_texture_float_linear: testContext.getExtension('OES_texture_float_linear'),
    };
    features = this.getFeatures();
  }

  static isContextMatch(context) {
    if (typeof WebGL2RenderingContext !== 'undefined') {
      return context instanceof WebGL2RenderingContext;
    }
    return false;
  }

  static getFeatures() {
    return Object.freeze({
      isFloatRead: this.getIsFloatRead(),
      isIntegerDivisionAccurate: this.getIsIntegerDivisionAccurate(),
      kernelMap: true,
      isTextureFloat: true,
    });
  }

  static getIsTextureFloat() {
    return true;
  }

  static getIsIntegerDivisionAccurate() {
    return super.getIsIntegerDivisionAccurate();
  }

  static lookupKernelValueType(type, dynamic, precision) {
    return lookupKernelValueType(type, dynamic, precision);
  }

  static get testCanvas() {
    return testCanvas;
  }

  static get testContext() {
    return testContext;
  }

  static get features() {
    return features;
  }

  static get fragmentShader() {
    return fragmentShader;
  }
  static get vertexShader() {
    return vertexShader;
  }

  initContext() {
    const settings = {
      alpha: false,
      depth: false,
      antialias: false
    };
    const context = this.canvas.getContext('webgl2', settings);
    return context;
  }

  initExtensions() {
    this.extensions = {
      EXT_color_buffer_float: this.context.getExtension('EXT_color_buffer_float'),
      OES_texture_float_linear: this.context.getExtension('OES_texture_float_linear'),
    };
  }

  validateSettings() {
    if (!this.validate) {
      this.texSize = utils.dimToTexSize({
        floatTextures: this.optimizeFloatMemory,
        floatOutput: this.precision === 'single',
      }, this.output, true);
      return;
    }

    const features = this.constructor.features;
    if (this.precision === 'single' && !features.isFloatRead) {
      throw new Error('Float texture outputs are not supported');
    } else if (!this.graphical && this.precision === null) {
      this.precision = features.isFloatRead ? 'single' : 'unsigned';
    }

    if (this.fixIntegerDivisionAccuracy === null) {
      this.fixIntegerDivisionAccuracy = !features.isIntegerDivisionAccurate;
    } else if (this.fixIntegerDivisionAccuracy && features.isIntegerDivisionAccurate) {
      this.fixIntegerDivisionAccuracy = false;
    }

    this.checkOutput();

    if (!this.output || this.output.length === 0) {
      if (arguments.length !== 1) {
        throw new Error('Auto output only supported for kernels with only one input');
      }

      const argType = utils.getVariableType(arguments[0], this.strictIntegers);
      switch (argType) {
        case 'Array':
          this.output = utils.getDimensions(argType);
          break;
        case 'NumberTexture':
        case 'MemoryOptimizedNumberTexture':
        case 'ArrayTexture(1)':
        case 'ArrayTexture(2)':
        case 'ArrayTexture(3)':
        case 'ArrayTexture(4)':
          this.output = arguments[0].output;
          break;
        default:
          throw new Error('Auto output not supported for input type: ' + argType);
      }
    }

    if (this.graphical) {
      if (this.output.length !== 2) {
        throw new Error('Output must have 2 dimensions on graphical mode');
      }

      if (this.precision === 'single') {
        console.warn('Cannot use graphical mode and single precision at the same time');
        this.precision = 'unsigned';
      }

      this.texSize = utils.clone(this.output);
      return;
    } else if (!this.graphical && this.precision === null && features.isTextureFloat) {
      this.precision = 'single';
    }

    this.texSize = utils.dimToTexSize({
      floatTextures: !this.optimizeFloatMemory,
      floatOutput: this.precision === 'single',
    }, this.output, true);

    if (this.precision === 'single') {
      this.context.getExtension('EXT_color_buffer_float');
    }
  }

  translateSource() {
    const functionBuilder = FunctionBuilder.fromKernel(this, WebGL2FunctionNode, {
      fixIntegerDivisionAccuracy: this.fixIntegerDivisionAccuracy
    });
    this.translatedSource = functionBuilder.getPrototypeString('kernel');
    if (!this.graphical && !this.returnType) {
      this.returnType = functionBuilder.getKernelResultType();
    }
  }

  run() {
    const { kernelArguments, texSize } = this;
    const gl = this.context;

    gl.useProgram(this.program);
    gl.scissor(0, 0, texSize[0], texSize[1]);

    if (this.dynamicOutput) {
      this.setUniform3iv('uOutputDim', new Int32Array(this.threadDim));
      this.setUniform2iv('uTexSize', texSize);
    }

    this.setUniform2f('ratio', texSize[0] / this.maxTexSize[0], texSize[1] / this.maxTexSize[1]);

    for (let i = 0; i < kernelArguments.length; i++) {
      if (this.switchingKernels) return;
      kernelArguments[i].updateValue(arguments[i]);
    }

    if (this.plugins) {
      for (let i = 0; i < this.plugins.length; i++) {
        const plugin = this.plugins[i];
        if (plugin.onBeforeRun) {
          plugin.onBeforeRun(this);
        }
      }
    }

    if (this.graphical) {
      if (this.pipeline) {
        gl.bindRenderbuffer(gl.RENDERBUFFER, null);
        gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);
        if (!this.outputTexture || this.immutable) {
          this._setupOutputTexture();
        }
        gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
        return new Texture({
          texture: this.outputTexture,
          size: texSize,
          dimensions: this.threadDim,
          output: this.output,
          context: this.context,
          gpu: this.gpu,
          type: this.getReturnTextureType(),
        });
      }
      gl.bindRenderbuffer(gl.RENDERBUFFER, null);
      gl.bindFramebuffer(gl.FRAMEBUFFER, null);
      gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
      return;
    }

    gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);
    if (this.immutable) {
      this._setupOutputTexture();
    }

    if (this.subKernels !== null) {
      if (this.immutable) {
        this._setupSubOutputTextures();
      }
      gl.drawBuffers(this.drawBuffersMap);
    }

    gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
  }

  drawBuffers() {
    this.context.drawBuffers(this.drawBuffersMap);
  }

  getOutputTexture() {
    return this.outputTexture;
  }

  _setupOutputTexture() {
    const { texSize } = this;
    const gl = this.context;
    const texture = this.outputTexture = gl.createTexture();
    gl.activeTexture(gl.TEXTURE0 + this.constantTextureCount + this.argumentTextureCount);
    gl.bindTexture(gl.TEXTURE_2D, texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    if (this.precision === 'single') {
      if (this.pipeline) {
        switch (this.returnType) {
          case 'Number':
          case 'Float':
          case 'Integer':
            if (this.optimizeFloatMemory) {
              gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA32F, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
            } else {
              gl.texImage2D(gl.TEXTURE_2D, 0, gl.R32F, texSize[0], texSize[1], 0, gl.RED, gl.FLOAT, null);
            }
            break;
          case 'Array(2)':
            gl.texImage2D(gl.TEXTURE_2D, 0, gl.RG32F, texSize[0], texSize[1], 0, gl.RG, gl.FLOAT, null);
            break;
          case 'Array(3)':
            gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB32F, texSize[0], texSize[1], 0, gl.RGB, gl.FLOAT, null);
            break;
          case 'Array(4)':
            gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA32F, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
            break;
          default:
            throw new Error('Unhandled return type');
        }
      } else {
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA32F, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
      }
    } else {
      gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
    }
    gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0);
  }

  _setupSubOutputTextures() {
    const { texSize } = this;
    const gl = this.context;
    this.drawBuffersMap = [gl.COLOR_ATTACHMENT0];
    this.subKernelOutputTextures = [];
    for (let i = 0; i < this.subKernels.length; i++) {
      const texture = this.context.createTexture();
      this.subKernelOutputTextures.push(texture);
      this.drawBuffersMap.push(gl.COLOR_ATTACHMENT0 + i + 1);
      gl.activeTexture(gl.TEXTURE0 + this.constantTextureCount + this.argumentTextureCount + i);
      gl.bindTexture(gl.TEXTURE_2D, texture);
      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
      if (this.precision === 'single') {
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA32F, texSize[0], texSize[1], 0, gl.RGBA, gl.FLOAT, null);
      } else {
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize[0], texSize[1], 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
      }
      gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0 + i + 1, gl.TEXTURE_2D, texture, 0);
    }
  }

  _getHeaderString() {
    return '';
  }

  _getTextureCoordinate() {
    const subKernels = this.subKernels;
    if (subKernels === null || subKernels.length < 1) {
      return 'in highp vec2 vTexCoord;\n';
    } else {
      return 'out highp vec2 vTexCoord;\n';
    }
  }

  _getMainArgumentsString(args) {
    const result = [];
    const argumentNames = this.argumentNames;
    for (let i = 0; i < argumentNames.length; i++) {
      result.push(this.kernelArguments[i].getSource(args[i]));
    }
    return result.join('');
  }

  getKernelString() {
    let kernelResultDeclaration;
    switch (this.returnType) {
      case 'Array(2)':
        kernelResultDeclaration = 'vec2 kernelResult';
        break;
      case 'Array(3)':
        kernelResultDeclaration = 'vec3 kernelResult';
        break;
      case 'Array(4)':
        kernelResultDeclaration = 'vec4 kernelResult';
        break;
      case 'LiteralInteger':
      case 'Float':
      case 'Number':
      case 'Integer':
        kernelResultDeclaration = 'float kernelResult';
        break;
      default:
        if (this.graphical) {
          kernelResultDeclaration = 'float kernelResult';
        } else {
          throw new Error(`unrecognized output type "${ this.returnType }"`);
        }
    }

    const result = [];
    const subKernels = this.subKernels;
    if (subKernels !== null) {
      result.push(
        kernelResultDeclaration,
        'layout(location = 0) out vec4 data0'
      );
      for (let i = 0; i < subKernels.length; i++) {
        result.push(
          `float subKernelResult_${ subKernels[i].name } = 0.0`,
          `layout(location = ${ i + 1 }) out vec4 data${ i + 1 }`
        );
      }
    } else {
      result.push(
        'out vec4 data0',
        kernelResultDeclaration
      );
    }

    return utils.linesToString(result) + this.translatedSource;
  }

  getMainResultGraphical() {
    return utils.linesToString([
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  data0 = actualColor',
    ]);
  }

  getMainResultPackedPixels() {
    switch (this.returnType) {
      case 'LiteralInteger':
      case 'Number':
      case 'Integer':
      case 'Float':
        return utils.linesToString(this.getMainResultKernelPackedPixels()) +
          utils.linesToString(this.getMainResultSubKernelPackedPixels());
      default:
        throw new Error(`packed output only usable with Numbers, "${this.returnType}" specified`);
    }
  }

  getMainResultKernelPackedPixels() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  data0 = encode32(kernelResult)'
    ];
  }

  getMainResultSubKernelPackedPixels() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; i++) {
      result.push(
        `  data${i + 1} = encode32(subKernelResult_${this.subKernels[i].name})`
      );
    }
    return result;
  }

  getMainResultMemoryOptimizedFloats() {
    const result = [
      '  index *= 4',
    ];

    switch (this.returnType) {
      case 'Number':
      case 'Integer':
      case 'Float':
        const channels = ['r', 'g', 'b', 'a'];
        for (let i = 0; i < channels.length; i++) {
          const channel = channels[i];
          this.getMainResultKernelMemoryOptimizedFloats(result, channel);
          this.getMainResultSubKernelMemoryOptimizedFloats(result, channel);
          if (i + 1 < channels.length) {
            result.push('  index += 1');
          }
        }
        break;
      default:
        throw new Error(`optimized output only usable with Numbers, ${this.returnType} specified`);
    }

    return utils.linesToString(result);
  }

  getMainResultKernelMemoryOptimizedFloats(result, channel) {
    result.push(
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      `  data0.${channel} = kernelResult`,
    );
  }

  getMainResultSubKernelMemoryOptimizedFloats(result, channel) {
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; i++) {
      result.push(
        `  data${i + 1}.${channel} = subKernelResult_${this.subKernels[i].name}`,
      );
    }
  }

  getMainResultKernelNumberTexture() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  data0[0] = kernelResult',
    ];
  }

  getMainResultSubKernelNumberTexture() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; ++i) {
      result.push(
        `  data${i + 1}[0] = subKernelResult_${this.subKernels[i].name}`,
      );
    }
    return result;
  }

  getMainResultKernelArray2Texture() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  data0[0] = kernelResult[0]',
      '  data0[1] = kernelResult[1]',
    ];
  }

  getMainResultSubKernelArray2Texture() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; ++i) {
      result.push(
        `  data${i + 1}[0] = subKernelResult_${this.subKernels[i].name}[0]`,
        `  data${i + 1}[1] = subKernelResult_${this.subKernels[i].name}[1]`,
      );
    }
    return result;
  }

  getMainResultKernelArray3Texture() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  data0[0] = kernelResult[0]',
      '  data0[1] = kernelResult[1]',
      '  data0[2] = kernelResult[2]',
    ];
  }

  getMainResultSubKernelArray3Texture() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; ++i) {
      result.push(
        `  data${i + 1}[0] = subKernelResult_${this.subKernels[i].name}[0]`,
        `  data${i + 1}[1] = subKernelResult_${this.subKernels[i].name}[1]`,
        `  data${i + 1}[2] = subKernelResult_${this.subKernels[i].name}[2]`,
      );
    }
    return result;
  }

  getMainResultKernelArray4Texture() {
    return [
      '  threadId = indexTo3D(index, uOutputDim)',
      '  kernel()',
      '  data0 = kernelResult',
    ];
  }

  getMainResultSubKernelArray4Texture() {
    const result = [];
    if (!this.subKernels) return result;
    for (let i = 0; i < this.subKernels.length; ++i) {
      result.push(
        `  data${i + 1} = subKernelResult_${this.subKernels[i].name}`,
      );
    }
    return result;
  }

  getFragmentShader(args) {
    if (this.compiledFragmentShader !== null) {
      return this.compiledFragmentShader;
    }
    return this.compiledFragmentShader = this.replaceArtifacts(this.constructor.fragmentShader, this._getFragShaderArtifactMap(args));
  }

  getVertexShader(args) {
    if (this.compiledVertexShader !== null) {
      return this.compiledVertexShader;
    }
    return this.compiledVertexShader = this.constructor.vertexShader;
  }

  destroyExtensions() {
    this.extensions.EXT_color_buffer_float = null;
    this.extensions.OES_texture_float_linear = null;
  }

  toJSON() {
    const json = super.toJSON();
    json.functionNodes = FunctionBuilder.fromKernel(this, WebGL2FunctionNode).toJSON();
    return json;
  }
}

module.exports = {
  WebGL2Kernel
};
},{"../../texture":69,"../../utils":70,"../function-builder":9,"../web-gl/kernel":37,"./fragment-shader":39,"./function-node":40,"./kernel-value-maps":41,"./vertex-shader":62}],62:[function(require,module,exports){
const vertexShader = `#version 300 es
precision highp float;
precision highp int;
precision highp sampler2D;

in vec2 aPos;
in vec2 aTexCoord;

out vec2 vTexCoord;
uniform vec2 ratio;

void main(void) {
  gl_Position = vec4((aPos + vec2(1)) * ratio + vec2(-1), 0, 1);
  vTexCoord = aTexCoord;
}`;

module.exports = {
  vertexShader
};
},{}],63:[function(require,module,exports){
const lib = require('./index');
const GPU = lib.GPU;
for (const p in lib) {
  if (!lib.hasOwnProperty(p)) continue;
  if (p === 'GPU') continue; 
  GPU[p] = lib[p];
}
if (typeof module !== 'undefined') {
  module.exports = GPU;
}
if (typeof window !== 'undefined') {
  window.GPU = GPU;
}
if (typeof self !== 'undefined') {
  self.GPU = GPU;
}
},{"./index":65}],64:[function(require,module,exports){
const gpuMock = require('gpu-mock.js');
const { utils } = require('./utils');
const { CPUKernel } = require('./backend/cpu/kernel');
const { HeadlessGLKernel } = require('./backend/headless-gl/kernel');
const { WebGL2Kernel } = require('./backend/web-gl2/kernel');
const { WebGLKernel } = require('./backend/web-gl/kernel');
const { kernelRunShortcut } = require('./kernel-run-shortcut');


const kernelOrder = [HeadlessGLKernel, WebGL2Kernel, WebGLKernel];

const kernelTypes = ['gpu', 'cpu'];

const internalKernels = {
  'headlessgl': HeadlessGLKernel,
  'webgl2': WebGL2Kernel,
  'webgl': WebGLKernel,
};

let validate = true;

class GPU {
  static disableValidation() {
    validate = false;
  }

  static enableValidation() {
    validate = true;
  }

  static get isGPUSupported() {
    return kernelOrder.some(Kernel => Kernel.isSupported);
  }

  static get isKernelMapSupported() {
    return kernelOrder.some(Kernel => Kernel.isSupported && Kernel.features.kernelMap);
  }

  static get isOffscreenCanvasSupported() {
    return (typeof Worker !== 'undefined' && typeof OffscreenCanvas !== 'undefined') || typeof importScripts !== 'undefined';
  }

  static get isWebGLSupported() {
    return WebGLKernel.isSupported;
  }

  static get isWebGL2Supported() {
    return WebGL2Kernel.isSupported;
  }

  static get isHeadlessGLSupported() {
    return HeadlessGLKernel.isSupported;
  }

  static get isCanvasSupported() {
    return typeof HTMLCanvasElement !== 'undefined';
  }

  static get isGPUHTMLImageArraySupported() {
    return WebGL2Kernel.isSupported;
  }

  static get isSinglePrecisionSupported() {
    return kernelOrder.some(Kernel => Kernel.isSupported && Kernel.features.isFloatRead && Kernel.features.isTextureFloat);
  }

  constructor(settings) {
    settings = settings || {};
    this.canvas = settings.canvas || null;
    this.context = settings.context || null;
    this.mode = settings.mode;
    if (this.mode === 'dev') return;
    this.Kernel = null;
    this.kernels = [];
    this.functions = [];
    this.nativeFunctions = [];
    this.chooseKernel();
    if (settings.functions) {
      for (let i = 0; i < settings.functions.length; i++) {
        this.addFunction(settings.functions[i]);
      }
    }

    if (settings.nativeFunctions) {
      for (const p in settings.nativeFunctions) {
        this.addNativeFunction(p, settings.nativeFunctions[p]);
      }
    }
  }

  chooseKernel() {
    if (this.Kernel) return;

    let Kernel = null;

    if (this.context) {
      for (let i = 0; i < kernelOrder.length; i++) {
        const ExternalKernel = kernelOrder[i];
        if (ExternalKernel.isContextMatch(this.context)) {
          if (!ExternalKernel.isSupported) {
            throw new Error(`Kernel type ${ExternalKernel.name} not supported`);
          }
          Kernel = ExternalKernel;
          break;
        }
      }
      if (Kernel === null) {
        throw new Error('unknown Context');
      }
    } else if (this.mode) {
      if (this.mode in internalKernels) {
        if (!validate || internalKernels[this.mode].isSupported) {
          Kernel = internalKernels[this.mode];
        }
      } else if (this.mode === 'gpu') {
        for (let i = 0; i < kernelOrder.length; i++) {
          if (kernelOrder[i].isSupported) {
            Kernel = kernelOrder[i];
            break;
          }
        }
      } else if (this.mode === 'cpu') {
        Kernel = CPUKernel;
      }
      if (!Kernel) {
        throw new Error(`A requested mode of "${this.mode}" and is not supported`);
      }
    } else {
      for (let i = 0; i < kernelOrder.length; i++) {
        if (kernelOrder[i].isSupported) {
          Kernel = kernelOrder[i];
          break;
        }
      }
      if (!Kernel) {
        Kernel = CPUKernel;
      }
    }

    if (!this.mode) {
      this.mode = Kernel.mode;
    }
    this.Kernel = Kernel;
  }

  createKernel(source, settings) {
    if (typeof source === 'undefined') {
      throw new Error('Missing source parameter');
    }
    if (typeof source !== 'object' && !utils.isFunction(source) && typeof source !== 'string') {
      throw new Error('source parameter not a function');
    }

    if (this.mode === 'dev') {
      return gpuMock(source, upgradeDeprecatedCreateKernelSettings(settings));
    }

    source = typeof source === 'function' ? source.toString() : source;
    const switchableKernels = {};
    const mergedSettings = Object.assign({
      context: this.context,
      canvas: this.canvas,
      functions: this.functions,
      nativeFunctions: this.nativeFunctions,
      gpu: this,
      validate,
      onRequestFallback: (args) => {
        const fallbackKernel = new CPUKernel(source, mergedSettings);
        return fallbackKernel.run.apply(fallbackKernel, args);
      },
      onRequestSwitchKernel: (args, kernel) => {
        const signatureArray = [];
        for (let i = 0; i < args.length; i++) {
          signatureArray.push(utils.getVariableType(args[i]));
        }
        const signature = signatureArray.join(',');
        const existingKernel = switchableKernels[signature];
        if (existingKernel) {
          existingKernel.run.apply(existingKernel, args);
          if (existingKernel.renderKernels) {
            return existingKernel.renderKernels();
          } else {
            return existingKernel.renderOutput();
          }
        }
        const newKernel = switchableKernels[signature] = new this.Kernel(source, {
          graphical: kernel.graphical,
          constants: kernel.constants,
          context: kernel.context,
          canvas: kernel.canvas,
          output: kernel.output,
          precision: kernel.precision,
          pipeline: kernel.pipeline,
          immutable: kernel.immutable,
          optimizeFloatMemory: kernel.optimizeFloatMemory,
          fixIntegerDivisionAccuracy: kernel.fixIntegerDivisionAccuracy,
          functions: kernel.functions,
          nativeFunctions: kernel.nativeFunctions,
          subKernels: kernel.subKernels,
          strictIntegers: kernel.strictIntegers,
          debug: kernel.debug,
          gpu: this,
          validate,
        });
        newKernel.build.apply(newKernel, args);
        newKernel.run.apply(newKernel, args);
        if (newKernel.renderKernels) {
          return newKernel.renderKernels();
        } else {
          return newKernel.renderOutput();
        }
      }
    }, upgradeDeprecatedCreateKernelSettings(settings) || {});

    const kernel = kernelRunShortcut(new this.Kernel(source, mergedSettings));

    if (!this.canvas) {
      this.canvas = kernel.canvas;
    }

    if (!this.context) {
      this.context = kernel.context;
    }

    this.kernels.push(kernel);

    return kernel;
  }

  createKernelMap() {
    let fn;
    let settings;
    if (typeof arguments[arguments.length - 2] === 'function') {
      fn = arguments[arguments.length - 2];
      settings = arguments[arguments.length - 1];
    } else {
      fn = arguments[arguments.length - 1];
    }

    if (!this.Kernel.isSupported || !this.Kernel.features.kernelMap) {
      if (this.mode && kernelTypes.indexOf(this.mode) < 0) {
        throw new Error(`kernelMap not supported on ${this.Kernel.name}`);
      }
    }

    const kernel = this.createKernel(fn, upgradeDeprecatedCreateKernelSettings(settings));
    if (Array.isArray(arguments[0])) {
      const functions = arguments[0];
      for (let i = 0; i < functions.length; i++) {
        const source = functions[i].toString();
        const name = utils.getFunctionNameFromString(source);
        kernel.addSubKernel({
          name,
          source,
          property: i,
        });
      }
    } else {
      const functions = arguments[0];
      for (let p in functions) {
        if (!functions.hasOwnProperty(p)) continue;
        const source = functions[p].toString();
        const name = utils.getFunctionNameFromString(source);
        kernel.addSubKernel({
          name: name || p,
          source,
          property: p,
        });
      }
    }

    return kernel;
  }

  combineKernels() {
    const firstKernel = arguments[0];
    const combinedKernel = arguments[arguments.length - 1];
    if (firstKernel.kernel.constructor.mode === 'cpu') return combinedKernel;
    const canvas = arguments[0].canvas;
    const context = arguments[0].context;
    const max = arguments.length - 1;
    for (let i = 0; i < max; i++) {
      arguments[i]
        .setCanvas(canvas)
        .setContext(context)
        .setPipeline(true);
    }

    return function() {
      const texture = combinedKernel.apply(this, arguments);
      if (texture.toArray) {
        return texture.toArray();
      }
      return texture;
    };
  }

  addFunction(source, settings) {
    this.functions.push(utils.functionToIFunction(source, settings));
    return this;
  }

  addNativeFunction(name, source, settings) {
    if (this.kernels.length > 0) {
      throw new Error('Cannot call "addNativeFunction" after "createKernels" has been called.');
    }
    settings = settings || {};
    const { argumentTypes, argumentNames } = this.Kernel.nativeFunctionArguments(source) || {};
    this.nativeFunctions.push({
      name,
      source,
      settings,
      argumentTypes,
      argumentNames,
      returnType: settings.returnType || this.Kernel.nativeFunctionReturnType(source),
    });
    return this;
  }

  destroy() {
    setTimeout(() => {
      for (let i = 0; i < this.kernels.length; i++) {
        this.kernels[i].destroy(true); 
      }
      this.kernels[0].kernel.constructor.destroyContext(this.context);
    }, 0);
  }
}


function upgradeDeprecatedCreateKernelSettings(settings) {
  if (!settings) {
    return;
  }
  const upgradedSettings = Object.assign({}, settings);

  if (settings.hasOwnProperty('floatOutput')) {
    utils.warnDeprecated('setting', 'floatOutput', 'precision');
    upgradedSettings.precision = settings.floatOutput ? 'single' : 'unsigned';
  }
  if (settings.hasOwnProperty('outputToTexture')) {
    utils.warnDeprecated('setting', 'outputToTexture', 'pipeline');
    upgradedSettings.pipeline = Boolean(settings.outputToTexture);
  }
  if (settings.hasOwnProperty('outputImmutable')) {
    utils.warnDeprecated('setting', 'outputImmutable', 'immutable');
    upgradedSettings.immutable = Boolean(settings.outputImmutable);
  }
  if (settings.hasOwnProperty('floatTextures')) {
    utils.warnDeprecated('setting', 'floatTextures', 'optimizeFloatMemory');
    upgradedSettings.optimizeFloatMemory = Boolean(settings.floatTextures);
  }
  return upgradedSettings;
}

module.exports = {
  GPU,
  kernelOrder,
  kernelTypes
};
},{"./backend/cpu/kernel":8,"./backend/headless-gl/kernel":13,"./backend/web-gl/kernel":37,"./backend/web-gl2/kernel":61,"./kernel-run-shortcut":67,"./utils":70,"gpu-mock.js":4}],65:[function(require,module,exports){
const { GPU } = require('./gpu');
const { alias } = require('./alias');
const { utils } = require('./utils');
const { Input, input } = require('./input');
const { Texture } = require('./texture');
const { FunctionBuilder } = require('./backend/function-builder');
const { FunctionNode } = require('./backend/function-node');
const { CPUFunctionNode } = require('./backend/cpu/function-node');
const { CPUKernel } = require('./backend/cpu/kernel');

const { HeadlessGLKernel } = require('./backend/headless-gl/kernel');

const { WebGLFunctionNode } = require('./backend/web-gl/function-node');
const { WebGLKernel } = require('./backend/web-gl/kernel');

const { WebGL2FunctionNode } = require('./backend/web-gl2/function-node');
const { WebGL2Kernel } = require('./backend/web-gl2/kernel');

const { GLKernel } = require('./backend/gl/kernel');

const { Kernel } = require('./backend/kernel');

module.exports = {
  alias,
  CPUFunctionNode,
  CPUKernel,
  GPU,
  FunctionBuilder,
  FunctionNode,
  HeadlessGLKernel,
  Input,
  input,
  Texture,
  utils,
  WebGL2FunctionNode,
  WebGL2Kernel,
  WebGLFunctionNode,
  WebGLKernel,
  GLKernel,
  Kernel,
};
},{"./alias":5,"./backend/cpu/function-node":6,"./backend/cpu/kernel":8,"./backend/function-builder":9,"./backend/function-node":10,"./backend/gl/kernel":12,"./backend/headless-gl/kernel":13,"./backend/kernel":15,"./backend/web-gl/function-node":17,"./backend/web-gl/kernel":37,"./backend/web-gl2/function-node":40,"./backend/web-gl2/kernel":61,"./gpu":64,"./input":66,"./texture":69,"./utils":70}],66:[function(require,module,exports){
class Input {
  constructor(value, size) {
    this.value = value;
    this.size = new Int32Array(3);
    if (Array.isArray(size)) {
      for (let i = 0; i < this.size.length; i++) {
        this.size[i] = size[i] || 1;
      }
    } else {
      if (size.z) {
        this.size = new Int32Array([size.x, size.y, size.z]);
      } else if (size.y) {
        this.size = new Int32Array([size.x, size.y, 1]);
      } else {
        this.size = new Int32Array([size.x, 1, 1]);
      }
    }

    const [h, w, d] = this.size;
    if (this.value.length !== (h * w * d)) {
      throw new Error(`Input size ${this.value.length} does not match ${w} * ${h} * ${d} = ${(h * w * d)}`);
    }
  }
}

function input(value, size) {
  return new Input(value, size);
}

module.exports = {
  Input,
  input
};
},{}],67:[function(require,module,exports){
const { utils } = require('./utils');

function kernelRunShortcut(kernel) {
  let run = function() {
    kernel.build.apply(kernel, arguments);
    if (kernel.renderKernels) {
      run = function() {
        kernel.run.apply(kernel, arguments);
        kernel.run.apply(kernel, arguments);
        if (kernel.switchingKernels) {
          kernel.switchingKernels = false;
          return kernel.onRequestSwitchKernel(arguments, kernel);
        }
        return kernel.renderKernels();
      };
      kernel.run.apply(kernel, arguments);
      return kernel.renderKernels();
    } else if (kernel.renderOutput) {
      run = function() {
        kernel.run.apply(kernel, arguments);
        if (kernel.switchingKernels) {
          kernel.switchingKernels = false;
          return kernel.onRequestSwitchKernel(arguments, kernel);
        }
        return kernel.renderOutput();
      };
      kernel.run.apply(kernel, arguments);
      return kernel.renderOutput();
    } else {
      run = function() {
        return kernel.run.apply(kernel, arguments);
      };
      return kernel.run.apply(kernel, arguments);
    }
  };
  const shortcut = function() {
    return run.apply(kernel, arguments);
  };

  shortcut.exec = function() {
    return new Promise((accept, reject) => {
      try {
        accept(run.apply(this, arguments));
      } catch (e) {
        reject(e);
      }
    });
  };

  utils
    .allPropertiesOf(kernel)
    .forEach((key) => {
      if (key[0] === '_' && key[1] === '_') return;
      if (typeof kernel[key] === 'function') {
        if (key.substring(0, 3) === 'add' || key.substring(0, 3) === 'set') {
          shortcut[key] = function() {
            kernel[key].apply(kernel, arguments);
            return shortcut;
          };
        } else if (key === 'requestFallback') {
          const requestFallback = kernel[key].bind(kernel);
          shortcut[key] = () => {
            kernel = requestFallback();
          };
        } else {
          shortcut[key] = kernel[key].bind(kernel);
        }
      } else {
        shortcut.__defineGetter__(key, () => {
          return kernel[key];
        });
        shortcut.__defineSetter__(key, (value) => {
          kernel[key] = value;
        });
      }
    });

  shortcut.kernel = kernel;

  return shortcut;
}

module.exports = {
  kernelRunShortcut
};
},{"./utils":70}],68:[function(require,module,exports){
const source = `

uniform highp float triangle_noise_seed;
highp float triangle_noise_shift = 0.000001;

//https://www.shadertoy.com/view/4t2SDh
//note: uniformly distributed, normalized rand, [0;1[
float nrand( vec2 n )
{
  return fract(sin(dot(n.xy, vec2(12.9898, 78.233)))* 43758.5453);
}
//note: remaps v to [0;1] in interval [a;b]
float remap( float a, float b, float v )
{
  return clamp( (v-a) / (b-a), 0.0, 1.0 );
}

float n4rand( vec2 n )
{
  float t = fract( triangle_noise_seed + triangle_noise_shift );
  float nrnd0 = nrand( n + 0.07*t );
  float nrnd1 = nrand( n + 0.11*t );  
  float nrnd2 = nrand( n + 0.13*t );
  float nrnd3 = nrand( n + 0.17*t );
  float result = (nrnd0+nrnd1+nrnd2+nrnd3) / 4.0;
  triangle_noise_shift = result + 0.000001;
  return result;
}`;

const name = 'triangle-noise-noise';

const functionMatch = 'Math.random()';

const functionReplace = 'n4rand(vTexCoord)';

const functionReturnType = 'Number';

const onBeforeRun = (kernel) => {
  kernel.setUniform1f('triangle_noise_seed', Math.random());
};

module.exports = {
  name,
  onBeforeRun,
  functionMatch,
  functionReplace,
  functionReturnType,
  source
};
},{}],69:[function(require,module,exports){
class Texture {
  constructor(settings) {
    const {
      texture,
      size,
      dimensions,
      output,
      context,
      gpu,
      type = 'NumberTexture',
    } = settings;
    if (!output) throw new Error('settings property "output" required.');
    if (!context) throw new Error('settings property "context" required.');
    this.texture = texture;
    this.size = size;
    this.dimensions = dimensions;
    this.output = output;
    this.context = context;
    this.gpu = gpu;
    this.kernel = null;
    this.type = type;
  }

  toArray(gpu) {
    let {
      kernel
    } = this;
    if (kernel) return kernel(this);
    gpu = gpu || this.gpu;
    if (!gpu) throw new Error('settings property "gpu" or argument required.');
    kernel = gpu.createKernel(function(x) {
      return x[this.thread.z][this.thread.y][this.thread.x];
    }, {
      output: this.output,
      precision: this.getPrecision(),
      optimizeFloatMemory: this.type === 'MemoryOptimizedNumberTexture',
    });

    this.kernel = kernel;
    return kernel(this);

  }

  getPrecision() {
    switch (this.type) {
      case 'NumberTexture':
        return 'unsigned';
      case 'MemoryOptimizedNumberTexture':
      case 'ArrayTexture(1)':
      case 'ArrayTexture(2)':
      case 'ArrayTexture(3)':
      case 'ArrayTexture(4)':
        return 'single';
      default:
        throw new Error('Unknown texture type');
    }
  }

  delete() {
    return this.context.deleteTexture(this.texture);
  }
}

module.exports = {
  Texture
};
},{}],70:[function(require,module,exports){
const { Input } = require('./input');
const { Texture } = require('./texture');

const FUNCTION_NAME = /function ([^(]*)/;
const STRIP_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg;
const ARGUMENT_NAMES = /([^\s,]+)/g;

const utils = {
  systemEndianness() {
    return _systemEndianness;
  },
  getSystemEndianness() {
    const b = new ArrayBuffer(4);
    const a = new Uint32Array(b);
    const c = new Uint8Array(b);
    a[0] = 0xdeadbeef;
    if (c[0] === 0xef) return 'LE';
    if (c[0] === 0xde) return 'BE';
    throw new Error('unknown endianness');
  },

  isFunction(funcObj) {
    return typeof(funcObj) === 'function';
  },

  isFunctionString(fn) {
    if (typeof fn === 'string') {
      return (fn
        .slice(0, 'function'.length)
        .toLowerCase() === 'function');
    }
    return false;
  },

  getFunctionNameFromString(funcStr) {
    return FUNCTION_NAME.exec(funcStr)[1].trim();
  },

  getFunctionBodyFromString(funcStr) {
    return funcStr.substring(funcStr.indexOf('{') + 1, funcStr.lastIndexOf('}'));
  },

  getArgumentNamesFromString(fn) {
    const fnStr = fn.replace(STRIP_COMMENTS, '');
    let result = fnStr.slice(fnStr.indexOf('(') + 1, fnStr.indexOf(')')).match(ARGUMENT_NAMES);
    if (result === null) {
      result = [];
    }
    return result;
  },

  clone(obj) {
    if (obj === null || typeof obj !== 'object' || obj.hasOwnProperty('isActiveClone')) return obj;

    const temp = obj.constructor(); 

    for (let key in obj) {
      if (Object.prototype.hasOwnProperty.call(obj, key)) {
        obj.isActiveClone = null;
        temp[key] = utils.clone(obj[key]);
        delete obj.isActiveClone;
      }
    }

    return temp;
  },

  isArray(array) {
    return !isNaN(array.length);
  },

  getVariableType(value, strictIntegers) {
    if (utils.isArray(value)) {
      if (value[0].nodeName === 'IMG') {
        return 'HTMLImageArray';
      }
      return 'Array';
    }

    switch (value.constructor) {
      case Boolean:
        return 'Boolean';
      case Number:
        if (strictIntegers && Number.isInteger(value)) {
          return 'Integer';
        }
        return 'Float';
      case Texture:
        return value.type;
      case Input:
        return 'Input';
    }

    if (value.nodeName === 'IMG') {
      return 'HTMLImage';
    } else {
      return 'Unknown';
    }
  },


  dimToTexSize(opt, dimensions, output) {
    let [w, h, d] = dimensions;
    let texelCount = (w || 1) * (h || 1) * (d || 1);

    if (opt.floatTextures && (!output || opt.precision === 'single')) {
      w = texelCount = Math.ceil(texelCount / 4);
    }
    if (h > 1 && w * h === texelCount) {
      return new Int32Array([w, h]);
    }
    return utils.closestSquareDimensions(texelCount);
  },

  closestSquareDimensions(length) {
    const sqrt = Math.sqrt(length);
    let high = Math.ceil(sqrt);
    let low = Math.floor(sqrt);
    while (high * low < length) {
      high--;
      low = Math.ceil(length / high);
    }
    return new Int32Array([low, Math.ceil(length / low)]);
  },

  getMemoryOptimizedFloatTextureSize(dimensions, bitRatio) {
    const [w, h, d] = dimensions;
    const totalArea = utils.roundTo((w || 1) * (h || 1) * (d || 1), 4);
    const texelCount = totalArea / bitRatio;
    return utils.closestSquareDimensions(texelCount);
  },

  getMemoryOptimizedPackedTextureSize(dimensions, bitRatio) {
    const [w, h, d] = dimensions;
    const totalArea = utils.roundTo((w || 1) * (h || 1) * (d || 1), 4);
    const texelCount = totalArea / (4 / bitRatio);
    return utils.closestSquareDimensions(texelCount);
  },

  roundTo(n, d) {
    return Math.floor((n + d - 1) / d) * d;
  },
  getDimensions(x, pad) {
    let ret;
    if (utils.isArray(x)) {
      const dim = [];
      let temp = x;
      while (utils.isArray(temp)) {
        dim.push(temp.length);
        temp = temp[0];
      }
      ret = dim.reverse();
    } else if (x instanceof Texture) {
      ret = x.output;
    } else if (x instanceof Input) {
      ret = x.size;
    } else {
      throw new Error(`Unknown dimensions of ${x}`);
    }

    if (pad) {
      ret = Array.from(ret);
      while (ret.length < 3) {
        ret.push(1);
      }
    }

    return new Int32Array(ret);
  },

  flatten2dArrayTo(array, target) {
    let offset = 0;
    for (let y = 0; y < array.length; y++) {
      target.set(array[y], offset);
      offset += array[y].length;
    }
  },

  flatten3dArrayTo(array, target) {
    let offset = 0;
    for (let z = 0; z < array.length; z++) {
      for (let y = 0; y < array[z].length; y++) {
        target.set(array[z][y], offset);
        offset += array[z][y].length;
      }
    }
  },

  flattenTo(array, target) {
    if (utils.isArray(array[0])) {
      if (utils.isArray(array[0][0])) {
        utils.flatten3dArrayTo(array, target);
      } else {
        utils.flatten2dArrayTo(array, target);
      }
    } else {
      target.set(array);
    }
  },

  splitArray(array, part) {
    const result = [];
    for (let i = 0; i < array.length; i += part) {
      result.push(new array.constructor(array.buffer, i * 4 + array.byteOffset, part));
    }
    return result;
  },

  getAstString(source, ast) {
    const lines = Array.isArray(source) ? source : source.split(/\r?\n/g);
    const start = ast.loc.start;
    const end = ast.loc.end;
    const result = [];
    result.push(lines[start.line - 1].slice(start.column));
    for (let i = start.line; i < end.line - 1; i++) {
      result.push(lines[i]);
    }
    result.push(lines[end.line - 1].slice(0, end.column));
    return result.join('\n');
  },

  allPropertiesOf(obj) {
    const props = [];

    do {
      props.push.apply(props, Object.getOwnPropertyNames(obj));
    } while (obj = Object.getPrototypeOf(obj));

    return props;
  },

  linesToString(lines) {
    if (lines.length > 0) {
      return lines.join(';\n') + ';\n';
    } else {
      return '\n';
    }
  },
  warnDeprecated(type, oldName, newName) {
    if (newName) {
      console.warn(`You are using a deprecated ${ type } "${ oldName }". It has been replaced with "${ newName }". Fixing, but please upgrade as it will soon be removed.`);
    } else {
      console.warn(`You are using a deprecated ${ type } "${ oldName }". It has been removed. Fixing, but please upgrade as it will soon be removed.`);
    }
  },
  functionToIFunction(source, settings) {
    settings = settings || {};
    if (typeof source !== 'string' && typeof source !== 'function') throw new Error('source not a string or function');
    const sourceString = typeof source === 'string' ? source : source.toString();

    let argumentTypes = [];

    if (Array.isArray(settings.argumentTypes)) {
      argumentTypes = settings.argumentTypes;
    } else if (typeof settings.argumentTypes === 'object') {
      argumentTypes = utils.getArgumentNamesFromString(sourceString)
        .map(name => settings.argumentTypes[name]) || [];
    } else {
      argumentTypes = settings.argumentTypes || [];
    }

    return {
      source: sourceString,
      argumentTypes,
      returnType: settings.returnType || null,
    };
  },
  flipPixels: (pixels, width, height) => {
    const halfHeight = height / 2 | 0; 
    const bytesPerRow = width * 4;
    const temp = new Uint8Array(width * 4);
    const result = pixels.slice(0);
    for (let y = 0; y < halfHeight; ++y) {
      const topOffset = y * bytesPerRow;
      const bottomOffset = (height - y - 1) * bytesPerRow;

      temp.set(result.subarray(topOffset, topOffset + bytesPerRow));

      result.copyWithin(topOffset, bottomOffset, bottomOffset + bytesPerRow);

      result.set(temp, bottomOffset);
    }
    return result;
  }
};

const _systemEndianness = utils.getSystemEndianness();

module.exports = {
  utils
};
},{"./input":66,"./texture":69}]},{},[63]);