systemjs/dist/system.src.js
2015-09-06 10:10:31 +02:00

4304 lines
132 KiB
JavaScript

/*
* SystemJS v0.19.0-dev
*/
(function() {
function bootstrap() {(function(__global) {
var isWorker = typeof window == 'undefined' && typeof self != 'undefined' && typeof importScripts != 'undefined';
var isBrowser = typeof window != 'undefined' && typeof document != 'undefined';
var isWindows = typeof process != 'undefined' && !!process.platform.match(/^win/);
if (!__global.console)
__global.console = { assert: function() {} };
// IE8 support
var indexOf = Array.prototype.indexOf || function(item) {
for (var i = 0, thisLen = this.length; i < thisLen; i++) {
if (this[i] === item) {
return i;
}
}
return -1;
};
var defineProperty;
(function () {
try {
if (!!Object.defineProperty({}, 'a', {}))
defineProperty = Object.defineProperty;
}
catch (e) {
defineProperty = function(obj, prop, opt) {
try {
obj[prop] = opt.value || opt.get.call(obj);
}
catch(e) {}
}
}
})();
function addToError(err, msg) {
var newErr;
if (err instanceof Error) {
var newErr = new Error(err.message, err.fileName, err.lineNumber);
if (isBrowser) {
newErr.message = err.message + '\n\t' + msg;
newErr.stack = err.stack;
}
else {
// node errors only look correct with the stack modified
newErr.message = err.message;
newErr.stack = err.stack + '\n\t' + msg;
}
}
else {
newErr = err + '\n\t' + msg;
}
return newErr;
}
function __eval(source, debugName, context) {
try {
new Function(source).call(context);
}
catch(e) {
throw addToError(e, 'Evaluating ' + debugName);
}
}
var baseURI;
// environent baseURI detection
if (typeof document != 'undefined' && document.getElementsByTagName) {
baseURI = document.baseURI;
if (!baseURI) {
var bases = document.getElementsByTagName('base');
baseURI = bases[0] && bases[0].href || window.location.href;
}
// sanitize out the hash and querystring
baseURI = baseURI.split('#')[0].split('?')[0];
baseURI = baseURI.substr(0, baseURI.lastIndexOf('/') + 1);
}
else if (typeof process != 'undefined' && process.cwd) {
baseURI = 'file://' + (isWindows ? '/' : '') + process.cwd() + '/';
if (isWindows)
baseURI = baseURI.replace(/\\/g, '/');
}
else if (typeof location != 'undefined') {
baseURI = __global.location.href;
}
else {
throw new TypeError('No environment baseURI');
}
var URL = __global.URLPolyfill || __global.URL;
/*
*********************************************************************************************
Dynamic Module Loader Polyfill
- Implemented exactly to the former 2014-08-24 ES6 Specification Draft Rev 27, Section 15
http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#august_24_2014_draft_rev_27
- Functions are commented with their spec numbers, with spec differences commented.
- Spec bugs are commented in this code with links.
- Abstract functions have been combined where possible, and their associated functions
commented.
- Realm implementation is entirely omitted.
*********************************************************************************************
*/
function Module() {}
// http://www.ecma-international.org/ecma-262/6.0/#sec-@@tostringtag
defineProperty(Module.prototype, 'toString', {
value: function() {
return 'Module';
}
});
function Loader(options) {
this._loader = {
loaderObj: this,
loads: [],
modules: {},
importPromises: {},
moduleRecords: {}
};
// 26.3.3.6
defineProperty(this, 'global', {
get: function() {
return __global;
}
});
// 26.3.3.13 realm not implemented
}
(function() {
// Some Helpers
// logs a linkset snapshot for debugging
/* function snapshot(loader) {
console.log('---Snapshot---');
for (var i = 0; i < loader.loads.length; i++) {
var load = loader.loads[i];
var linkSetLog = ' ' + load.name + ' (' + load.status + '): ';
for (var j = 0; j < load.linkSets.length; j++) {
linkSetLog += '{' + logloads(load.linkSets[j].loads) + '} ';
}
console.log(linkSetLog);
}
console.log('');
}
function logloads(loads) {
var log = '';
for (var k = 0; k < loads.length; k++)
log += loads[k].name + (k != loads.length - 1 ? ' ' : '');
return log;
} */
/* function checkInvariants() {
// see https://bugs.ecmascript.org/show_bug.cgi?id=2603#c1
var loads = System._loader.loads;
var linkSets = [];
for (var i = 0; i < loads.length; i++) {
var load = loads[i];
console.assert(load.status == 'loading' || load.status == 'loaded', 'Each load is loading or loaded');
for (var j = 0; j < load.linkSets.length; j++) {
var linkSet = load.linkSets[j];
for (var k = 0; k < linkSet.loads.length; k++)
console.assert(loads.indexOf(linkSet.loads[k]) != -1, 'linkSet loads are a subset of loader loads');
if (linkSets.indexOf(linkSet) == -1)
linkSets.push(linkSet);
}
}
for (var i = 0; i < loads.length; i++) {
var load = loads[i];
for (var j = 0; j < linkSets.length; j++) {
var linkSet = linkSets[j];
if (linkSet.loads.indexOf(load) != -1)
console.assert(load.linkSets.indexOf(linkSet) != -1, 'linkSet contains load -> load contains linkSet');
if (load.linkSets.indexOf(linkSet) != -1)
console.assert(linkSet.loads.indexOf(load) != -1, 'load contains linkSet -> linkSet contains load');
}
}
for (var i = 0; i < linkSets.length; i++) {
var linkSet = linkSets[i];
for (var j = 0; j < linkSet.loads.length; j++) {
var load = linkSet.loads[j];
for (var k = 0; k < load.dependencies.length; k++) {
var depName = load.dependencies[k].value;
var depLoad;
for (var l = 0; l < loads.length; l++) {
if (loads[l].name != depName)
continue;
depLoad = loads[l];
break;
}
// loading records are allowed not to have their dependencies yet
// if (load.status != 'loading')
// console.assert(depLoad, 'depLoad found');
// console.assert(linkSet.loads.indexOf(depLoad) != -1, 'linkset contains all dependencies');
}
}
}
} */
// 15.2.3 - Runtime Semantics: Loader State
// 15.2.3.11
function createLoaderLoad(object) {
return {
// modules is an object for ES5 implementation
modules: {},
loads: [],
loaderObj: object
};
}
// 15.2.3.2 Load Records and LoadRequest Objects
// 15.2.3.2.1
function createLoad(name) {
return {
status: 'loading',
name: name,
linkSets: [],
dependencies: [],
metadata: {}
};
}
// 15.2.3.2.2 createLoadRequestObject, absorbed into calling functions
// 15.2.4
// 15.2.4.1
function loadModule(loader, name, options) {
return new Promise(asyncStartLoadPartwayThrough({
step: options.address ? 'fetch' : 'locate',
loader: loader,
moduleName: name,
// allow metadata for import https://bugs.ecmascript.org/show_bug.cgi?id=3091
moduleMetadata: options && options.metadata || {},
moduleSource: options.source,
moduleAddress: options.address
}));
}
// 15.2.4.2
function requestLoad(loader, request, refererName, refererAddress) {
// 15.2.4.2.1 CallNormalize
return new Promise(function(resolve, reject) {
resolve(loader.loaderObj.normalize(request, refererName, refererAddress));
})
// 15.2.4.2.2 GetOrCreateLoad
.then(function(name) {
var load;
if (loader.modules[name]) {
load = createLoad(name);
load.status = 'linked';
// https://bugs.ecmascript.org/show_bug.cgi?id=2795
load.module = loader.modules[name];
return load;
}
for (var i = 0, l = loader.loads.length; i < l; i++) {
load = loader.loads[i];
if (load.name != name)
continue;
console.assert(load.status == 'loading' || load.status == 'loaded', 'loading or loaded');
return load;
}
load = createLoad(name);
loader.loads.push(load);
proceedToLocate(loader, load);
return load;
});
}
// 15.2.4.3
function proceedToLocate(loader, load) {
proceedToFetch(loader, load,
Promise.resolve()
// 15.2.4.3.1 CallLocate
.then(function() {
return loader.loaderObj.locate({ name: load.name, metadata: load.metadata });
})
);
}
// 15.2.4.4
function proceedToFetch(loader, load, p) {
proceedToTranslate(loader, load,
p
// 15.2.4.4.1 CallFetch
.then(function(address) {
// adjusted, see https://bugs.ecmascript.org/show_bug.cgi?id=2602
if (load.status != 'loading')
return;
load.address = address;
return loader.loaderObj.fetch({ name: load.name, metadata: load.metadata, address: address });
})
);
}
var anonCnt = 0;
// 15.2.4.5
function proceedToTranslate(loader, load, p) {
p
// 15.2.4.5.1 CallTranslate
.then(function(source) {
if (load.status != 'loading')
return;
return Promise.resolve(loader.loaderObj.translate({ name: load.name, metadata: load.metadata, address: load.address, source: source }))
// 15.2.4.5.2 CallInstantiate
.then(function(source) {
load.source = source;
return loader.loaderObj.instantiate({ name: load.name, metadata: load.metadata, address: load.address, source: source });
})
// 15.2.4.5.3 InstantiateSucceeded
.then(function(instantiateResult) {
if (instantiateResult === undefined) {
load.address = load.address || '<Anonymous Module ' + ++anonCnt + '>';
// instead of load.kind, use load.isDeclarative
load.isDeclarative = true;
return transpile.call(loader.loaderObj, load)
.then(function(transpiled) {
// Hijack System.register to set declare function
var curSystem = __global.System;
var curRegister = curSystem.register;
curSystem.register = function(name, deps, declare) {
if (typeof name != 'string') {
declare = deps;
deps = name;
}
// store the registered declaration as load.declare
// store the deps as load.deps
load.declare = declare;
load.depsList = deps;
}
// empty {} context is closest to undefined 'this' we can get
__eval(transpiled, load.address, {});
curSystem.register = curRegister;
});
}
else if (typeof instantiateResult == 'object') {
load.depsList = instantiateResult.deps || [];
load.execute = instantiateResult.execute;
load.isDeclarative = false;
}
else
throw TypeError('Invalid instantiate return value');
})
// 15.2.4.6 ProcessLoadDependencies
.then(function() {
load.dependencies = [];
var depsList = load.depsList;
var loadPromises = [];
for (var i = 0, l = depsList.length; i < l; i++) (function(request, index) {
loadPromises.push(
requestLoad(loader, request, load.name, load.address)
// 15.2.4.6.1 AddDependencyLoad (load is parentLoad)
.then(function(depLoad) {
// adjusted from spec to maintain dependency order
// this is due to the System.register internal implementation needs
load.dependencies[index] = {
key: request,
value: depLoad.name
};
if (depLoad.status != 'linked') {
var linkSets = load.linkSets.concat([]);
for (var i = 0, l = linkSets.length; i < l; i++)
addLoadToLinkSet(linkSets[i], depLoad);
}
// console.log('AddDependencyLoad ' + depLoad.name + ' for ' + load.name);
// snapshot(loader);
})
);
})(depsList[i], i);
return Promise.all(loadPromises);
})
// 15.2.4.6.2 LoadSucceeded
.then(function() {
// console.log('LoadSucceeded ' + load.name);
// snapshot(loader);
console.assert(load.status == 'loading', 'is loading');
load.status = 'loaded';
var linkSets = load.linkSets.concat([]);
for (var i = 0, l = linkSets.length; i < l; i++)
updateLinkSetOnLoad(linkSets[i], load);
});
})
// 15.2.4.5.4 LoadFailed
['catch'](function(exc) {
load.status = 'failed';
load.exception = exc;
var linkSets = load.linkSets.concat([]);
for (var i = 0, l = linkSets.length; i < l; i++) {
linkSetFailed(linkSets[i], load, exc);
}
console.assert(load.linkSets.length == 0, 'linkSets not removed');
});
}
// 15.2.4.7 PromiseOfStartLoadPartwayThrough absorbed into calling functions
// 15.2.4.7.1
function asyncStartLoadPartwayThrough(stepState) {
return function(resolve, reject) {
var loader = stepState.loader;
var name = stepState.moduleName;
var step = stepState.step;
if (loader.modules[name])
throw new TypeError('"' + name + '" already exists in the module table');
// adjusted to pick up existing loads
var existingLoad;
for (var i = 0, l = loader.loads.length; i < l; i++) {
if (loader.loads[i].name == name) {
existingLoad = loader.loads[i];
if(step == 'translate' && !existingLoad.source) {
existingLoad.address = stepState.moduleAddress;
proceedToTranslate(loader, existingLoad, Promise.resolve(stepState.moduleSource));
}
// a primary load -> use that existing linkset
if (existingLoad.linkSets.length)
return existingLoad.linkSets[0].done.then(function() {
resolve(existingLoad);
});
}
}
var load = existingLoad || createLoad(name);
load.metadata = stepState.moduleMetadata;
var linkSet = createLinkSet(loader, load);
loader.loads.push(load);
resolve(linkSet.done);
if (step == 'locate')
proceedToLocate(loader, load);
else if (step == 'fetch')
proceedToFetch(loader, load, Promise.resolve(stepState.moduleAddress));
else {
console.assert(step == 'translate', 'translate step');
load.address = stepState.moduleAddress;
proceedToTranslate(loader, load, Promise.resolve(stepState.moduleSource));
}
}
}
// Declarative linking functions run through alternative implementation:
// 15.2.5.1.1 CreateModuleLinkageRecord not implemented
// 15.2.5.1.2 LookupExport not implemented
// 15.2.5.1.3 LookupModuleDependency not implemented
// 15.2.5.2.1
function createLinkSet(loader, startingLoad) {
var linkSet = {
loader: loader,
loads: [],
startingLoad: startingLoad, // added see spec bug https://bugs.ecmascript.org/show_bug.cgi?id=2995
loadingCount: 0
};
linkSet.done = new Promise(function(resolve, reject) {
linkSet.resolve = resolve;
linkSet.reject = reject;
});
addLoadToLinkSet(linkSet, startingLoad);
return linkSet;
}
// 15.2.5.2.2
function addLoadToLinkSet(linkSet, load) {
if (load.status == 'failed')
return;
console.assert(load.status == 'loading' || load.status == 'loaded', 'loading or loaded on link set');
for (var i = 0, l = linkSet.loads.length; i < l; i++)
if (linkSet.loads[i] == load)
return;
linkSet.loads.push(load);
load.linkSets.push(linkSet);
// adjustment, see https://bugs.ecmascript.org/show_bug.cgi?id=2603
if (load.status != 'loaded') {
linkSet.loadingCount++;
}
var loader = linkSet.loader;
for (var i = 0, l = load.dependencies.length; i < l; i++) {
if (!load.dependencies[i])
continue;
var name = load.dependencies[i].value;
if (loader.modules[name])
continue;
for (var j = 0, d = loader.loads.length; j < d; j++) {
if (loader.loads[j].name != name)
continue;
addLoadToLinkSet(linkSet, loader.loads[j]);
break;
}
}
// console.log('add to linkset ' + load.name);
// snapshot(linkSet.loader);
}
// linking errors can be generic or load-specific
// this is necessary for debugging info
function doLink(linkSet) {
var error = false;
try {
link(linkSet, function(load, exc) {
linkSetFailed(linkSet, load, exc);
error = true;
});
}
catch(e) {
linkSetFailed(linkSet, null, e);
error = true;
}
return error;
}
// 15.2.5.2.3
function updateLinkSetOnLoad(linkSet, load) {
// console.log('update linkset on load ' + load.name);
// snapshot(linkSet.loader);
console.assert(load.status == 'loaded' || load.status == 'linked', 'loaded or linked');
linkSet.loadingCount--;
if (linkSet.loadingCount > 0)
return;
// adjusted for spec bug https://bugs.ecmascript.org/show_bug.cgi?id=2995
var startingLoad = linkSet.startingLoad;
// non-executing link variation for loader tracing
// on the server. Not in spec.
/***/
if (linkSet.loader.loaderObj.execute === false) {
var loads = [].concat(linkSet.loads);
for (var i = 0, l = loads.length; i < l; i++) {
var load = loads[i];
load.module = !load.isDeclarative ? {
module: _newModule({})
} : {
name: load.name,
module: _newModule({}),
evaluated: true
};
load.status = 'linked';
finishLoad(linkSet.loader, load);
}
return linkSet.resolve(startingLoad);
}
/***/
var abrupt = doLink(linkSet);
if (abrupt)
return;
console.assert(linkSet.loads.length == 0, 'loads cleared');
linkSet.resolve(startingLoad);
}
// 15.2.5.2.4
function linkSetFailed(linkSet, load, exc) {
var loader = linkSet.loader;
var requests;
checkError:
if (load) {
if (linkSet.loads[0].name == load.name) {
exc = addToError(exc, 'Error loading ' + load.name);
}
else {
for (var i = 0; i < linkSet.loads.length; i++) {
var pLoad = linkSet.loads[i];
for (var j = 0; j < pLoad.dependencies.length; j++) {
var dep = pLoad.dependencies[j];
if (dep.value == load.name) {
exc = addToError(exc, 'Error loading ' + load.name + ' as "' + dep.key + '" from ' + pLoad.name);
break checkError;
}
}
}
exc = addToError(exc, 'Error loading ' + load.name + ' from ' + linkSet.loads[0].name);
}
}
else {
exc = addToError(exc, 'Error linking ' + linkSet.loads[0].name);
}
var loads = linkSet.loads.concat([]);
for (var i = 0, l = loads.length; i < l; i++) {
var load = loads[i];
// store all failed load records
loader.loaderObj.failed = loader.loaderObj.failed || [];
if (indexOf.call(loader.loaderObj.failed, load) == -1)
loader.loaderObj.failed.push(load);
var linkIndex = indexOf.call(load.linkSets, linkSet);
console.assert(linkIndex != -1, 'link not present');
load.linkSets.splice(linkIndex, 1);
if (load.linkSets.length == 0) {
var globalLoadsIndex = indexOf.call(linkSet.loader.loads, load);
if (globalLoadsIndex != -1)
linkSet.loader.loads.splice(globalLoadsIndex, 1);
}
}
linkSet.reject(exc);
}
// 15.2.5.2.5
function finishLoad(loader, load) {
// add to global trace if tracing
if (loader.loaderObj.trace) {
if (!loader.loaderObj.loads)
loader.loaderObj.loads = {};
var depMap = {};
load.dependencies.forEach(function(dep) {
depMap[dep.key] = dep.value;
});
loader.loaderObj.loads[load.name] = {
name: load.name,
deps: load.dependencies.map(function(dep){ return dep.key }),
depMap: depMap,
address: load.address,
metadata: load.metadata,
source: load.source,
kind: load.isDeclarative ? 'declarative' : 'dynamic'
};
}
// if not anonymous, add to the module table
if (load.name) {
console.assert(!loader.modules[load.name], 'load not in module table');
loader.modules[load.name] = load.module;
}
var loadIndex = indexOf.call(loader.loads, load);
if (loadIndex != -1)
loader.loads.splice(loadIndex, 1);
for (var i = 0, l = load.linkSets.length; i < l; i++) {
loadIndex = indexOf.call(load.linkSets[i].loads, load);
if (loadIndex != -1)
load.linkSets[i].loads.splice(loadIndex, 1);
}
load.linkSets.splice(0, load.linkSets.length);
}
function doDynamicExecute(linkSet, load, linkError) {
try {
var module = load.execute();
}
catch(e) {
linkError(load, e);
return;
}
if (!module || !(module instanceof Module))
linkError(load, new TypeError('Execution must define a Module instance'));
else
return module;
}
// 26.3 Loader
// 26.3.1.1
// defined at top
// importPromises adds ability to import a module twice without error - https://bugs.ecmascript.org/show_bug.cgi?id=2601
function createImportPromise(loader, name, promise) {
var importPromises = loader._loader.importPromises;
return importPromises[name] = promise.then(function(m) {
importPromises[name] = undefined;
return m;
}, function(e) {
importPromises[name] = undefined;
throw e;
});
}
Loader.prototype = {
// 26.3.3.1
constructor: Loader,
// 26.3.3.2
define: function(name, source, options) {
// check if already defined
if (this._loader.importPromises[name])
throw new TypeError('Module is already loading.');
return createImportPromise(this, name, new Promise(asyncStartLoadPartwayThrough({
step: 'translate',
loader: this._loader,
moduleName: name,
moduleMetadata: options && options.metadata || {},
moduleSource: source,
moduleAddress: options && options.address
})));
},
// 26.3.3.3
'delete': function(name) {
var loader = this._loader;
delete loader.importPromises[name];
delete loader.moduleRecords[name];
return loader.modules[name] ? delete loader.modules[name] : false;
},
// 26.3.3.4 entries not implemented
// 26.3.3.5
get: function(key) {
if (!this._loader.modules[key])
return;
doEnsureEvaluated(this._loader.modules[key], [], this);
return this._loader.modules[key].module;
},
// 26.3.3.7
has: function(name) {
return !!this._loader.modules[name];
},
// 26.3.3.8
'import': function(name, parentName, parentAddress) {
if (typeof parentName == 'object')
parentName = parentName.name;
// run normalize first
var loaderObj = this;
// added, see https://bugs.ecmascript.org/show_bug.cgi?id=2659
return Promise.resolve(loaderObj.normalize(name, parentName))
.then(function(name) {
var loader = loaderObj._loader;
if (loader.modules[name]) {
doEnsureEvaluated(loader.modules[name], [], loader._loader);
return loader.modules[name].module;
}
return loader.importPromises[name] || createImportPromise(loaderObj, name,
loadModule(loader, name, {})
.then(function(load) {
delete loader.importPromises[name];
return evaluateLoadedModule(loader, load);
}));
});
},
// 26.3.3.9 keys not implemented
// 26.3.3.10
load: function(name, options) {
var loader = this._loader;
if (loader.modules[name]) {
doEnsureEvaluated(loader.modules[name], [], loader);
return Promise.resolve(loader.modules[name].module);
}
return loader.importPromises[name] || createImportPromise(this, name,
loadModule(loader, name, {})
.then(function(load) {
delete loader.importPromises[name];
return evaluateLoadedModule(loader, load);
}));
},
// 26.3.3.11
module: function(source, options) {
var load = createLoad();
load.address = options && options.address;
var linkSet = createLinkSet(this._loader, load);
var sourcePromise = Promise.resolve(source);
var loader = this._loader;
var p = linkSet.done.then(function() {
return evaluateLoadedModule(loader, load);
});
proceedToTranslate(loader, load, sourcePromise);
return p;
},
// 26.3.3.12
newModule: function (obj) {
if (typeof obj != 'object')
throw new TypeError('Expected object');
// we do this to be able to tell if a module is a module privately in ES5
// by doing m instanceof Module
var m = new Module();
var pNames;
if (Object.getOwnPropertyNames && obj != null) {
pNames = Object.getOwnPropertyNames(obj);
}
else {
pNames = [];
for (var key in obj)
pNames.push(key);
}
for (var i = 0; i < pNames.length; i++) (function(key) {
defineProperty(m, key, {
configurable: false,
enumerable: true,
get: function () {
return obj[key];
}
});
})(pNames[i]);
if (Object.preventExtensions)
Object.preventExtensions(m);
return m;
},
// 26.3.3.14
set: function(name, module) {
if (!(module instanceof Module))
throw new TypeError('Loader.set(' + name + ', module) must be a module');
this._loader.modules[name] = {
module: module
};
},
// 26.3.3.15 values not implemented
// 26.3.3.16 @@iterator not implemented
// 26.3.3.17 @@toStringTag not implemented
// 26.3.3.18.1
normalize: function(name, referrerName, referrerAddress) {
return name;
},
// 26.3.3.18.2
locate: function(load) {
return load.name;
},
// 26.3.3.18.3
fetch: function(load) {
},
// 26.3.3.18.4
translate: function(load) {
return load.source;
},
// 26.3.3.18.5
instantiate: function(load) {
}
};
var _newModule = Loader.prototype.newModule;
/*
* ES6 Module Declarative Linking Code - Dev Build Only
*/
function link(linkSet, linkError) {
var loader = linkSet.loader;
if (!linkSet.loads.length)
return;
var loads = linkSet.loads.concat([]);
for (var i = 0; i < loads.length; i++) {
var load = loads[i];
var module = doDynamicExecute(linkSet, load, linkError);
if (!module)
return;
load.module = {
name: load.name,
module: module
};
load.status = 'linked';
finishLoad(loader, load);
}
}
function evaluateLoadedModule(loader, load) {
console.assert(load.status == 'linked', 'is linked ' + load.name);
return load.module.module;
}
function doEnsureEvaluated() {}
function transpile() {
throw new TypeError('ES6 transpilation is only provided in the dev module loader build.');
}
})();/*
*********************************************************************************************
System Loader Implementation
- Implemented to https://github.com/jorendorff/js-loaders/blob/master/browser-loader.js
- <script type="module"> supported
*********************************************************************************************
*/
var System;
function SystemLoader() {
Loader.call(this);
this.paths = {};
}
// NB no specification provided for System.paths, used ideas discussed in https://github.com/jorendorff/js-loaders/issues/25
function applyPaths(paths, name) {
// most specific (most number of slashes in path) match wins
var pathMatch = '', wildcard, maxSlashCount = 0;
// check to see if we have a paths entry
for (var p in paths) {
var pathParts = p.split('*');
if (pathParts.length > 2)
throw new TypeError('Only one wildcard in a path is permitted');
// exact path match
if (pathParts.length == 1) {
if (name == p) {
pathMatch = p;
break;
}
}
// wildcard path match
else {
var slashCount = p.split('/').length;
if (slashCount >= maxSlashCount &&
name.substr(0, pathParts[0].length) == pathParts[0] &&
name.substr(name.length - pathParts[1].length) == pathParts[1]) {
maxSlashCount = slashCount;
pathMatch = p;
wildcard = name.substr(pathParts[0].length, name.length - pathParts[1].length - pathParts[0].length);
}
}
}
var outPath = paths[pathMatch] || name;
if (typeof wildcard == 'string')
outPath = outPath.replace('*', wildcard);
return outPath;
}
// inline Object.create-style class extension
function LoaderProto() {}
LoaderProto.prototype = Loader.prototype;
SystemLoader.prototype = new LoaderProto();
var fetchTextFromURL;
if (typeof XMLHttpRequest != 'undefined') {
fetchTextFromURL = function(url, authorization, fulfill, reject) {
var xhr = new XMLHttpRequest();
var sameDomain = true;
var doTimeout = false;
if (!('withCredentials' in xhr)) {
// check if same domain
var domainCheck = /^(\w+:)?\/\/([^\/]+)/.exec(url);
if (domainCheck) {
sameDomain = domainCheck[2] === window.location.host;
if (domainCheck[1])
sameDomain &= domainCheck[1] === window.location.protocol;
}
}
if (!sameDomain && typeof XDomainRequest != 'undefined') {
xhr = new XDomainRequest();
xhr.onload = load;
xhr.onerror = error;
xhr.ontimeout = error;
xhr.onprogress = function() {};
xhr.timeout = 0;
doTimeout = true;
}
function load() {
fulfill(xhr.responseText);
}
function error() {
reject(new Error('XHR error' + (xhr.status ? ' (' + xhr.status + (xhr.statusText ? ' ' + xhr.statusText : '') + ')' : '') + ' loading ' + url));
}
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
if (xhr.status === 200 || (xhr.status == 0 && xhr.responseText)) {
load();
} else {
error();
}
}
};
xhr.open("GET", url, true);
if (xhr.setRequestHeader) {
xhr.setRequestHeader('Accept', 'application/x-es-module, */*');
// can set "authorization: true" to enable withCredentials only
if (authorization) {
if (typeof authorization == 'string')
xhr.setRequestHeader('Authorization', authorization);
xhr.withCredentials = true;
}
}
if (doTimeout)
setTimeout(function() {
xhr.send();
}, 0);
xhr.send(null);
};
}
else if (typeof require != 'undefined') {
var fs;
fetchTextFromURL = function(url, authorization, fulfill, reject) {
if (url.substr(0, 8) != 'file:///')
throw new Error('Unable to fetch "' + url + '". Only file URLs of the form file:/// allowed running in Node.');
fs = fs || require('fs');
if (isWindows)
url = url.replace(/\//g, '\\').substr(8);
else
url = url.substr(7);
return fs.readFile(url, function(err, data) {
if (err) {
return reject(err);
}
else {
// Strip Byte Order Mark out if it's the leading char
var dataString = data + '';
if (dataString[0] === '\ufeff')
dataString = dataString.substr(1);
fulfill(dataString);
}
});
};
}
else {
throw new TypeError('No environment fetch API available.');
}
SystemLoader.prototype.fetch = function(load) {
return new Promise(function(resolve, reject) {
fetchTextFromURL(load.address, undefined, resolve, reject);
});
};
/*
* Traceur, Babel and TypeScript transpile hook for Loader
*/
var transpile = (function() {
// use Traceur by default
Loader.prototype.transpiler = 'traceur';
function transpile(load) {
var self = this;
return Promise.resolve(__global[self.transpiler == 'typescript' ? 'ts' : self.transpiler]
|| (self.pluginLoader || self)['import'](self.transpiler))
.then(function(transpiler) {
if (transpiler.__useDefault)
transpiler = transpiler['default'];
var transpileFunction;
if (transpiler.Compiler)
transpileFunction = traceurTranspile;
else if (transpiler.createLanguageService)
transpileFunction = typescriptTranspile;
else
transpileFunction = babelTranspile;
// note __moduleName will be part of the transformer meta in future when we have the spec for this
return '(function(__moduleName){' + transpileFunction.call(self, load, transpiler) + '\n})("' + load.name + '");\n//# sourceURL=' + load.address + '!transpiled';
});
};
function traceurTranspile(load, traceur) {
var options = this.traceurOptions || {};
options.modules = 'instantiate';
options.script = false;
if (options.sourceMaps === undefined)
options.sourceMaps = 'inline';
options.filename = load.address;
options.inputSourceMap = load.metadata.sourceMap;
options.moduleName = false;
var compiler = new traceur.Compiler(options);
return doTraceurCompile(load.source, compiler, options.filename);
}
function doTraceurCompile(source, compiler, filename) {
try {
return compiler.compile(source, filename);
}
catch(e) {
// traceur throws an error array
throw e[0];
}
}
function babelTranspile(load, babel) {
var options = this.babelOptions || {};
options.modules = 'system';
if (options.sourceMap === undefined)
options.sourceMap = 'inline';
options.inputSourceMap = load.metadata.sourceMap;
options.filename = load.address;
options.code = true;
options.ast = false;
return babel.transform(load.source, options).code;
}
function typescriptTranspile(load, ts) {
var options = this.typescriptOptions || {};
options.target = options.target || ts.ScriptTarget.ES5;
if (options.sourceMap === undefined)
options.sourceMap = true;
if (options.sourceMap)
options.inlineSourceMap = true;
options.module = ts.ModuleKind.System;
return ts.transpile(load.source, options, load.address);
}
return transpile;
})();
// we define a __exec for globally-scoped execution
// used by module format implementations
var __exec;
(function() {
// System clobbering protection (mostly for Traceur)
var curSystem;
function preExec(loader) {
curSystem = __global.System;
__global.System = loader;
}
function postExec() {
__global.System = curSystem;
}
var hasBtoa = typeof btoa != 'undefined';
function getSource(load) {
var lastLineIndex = load.source.lastIndexOf('\n');
return load.source
// adds the sourceURL comment if not already present
+ (load.source.substr(lastLineIndex, 15) != '\n//# sourceURL='
? '\n//# sourceURL=' + load.address + (load.metadata.sourceMap ? '!transpiled' : '') : '')
// add sourceMappingURL if load.metadata.sourceMap is set
+ (load.metadata.sourceMap && hasBtoa &&
'\n//# sourceMappingURL=data:application/json;base64,' + btoa(unescape(encodeURIComponent(load.metadata.sourceMap))) || '')
}
// Web Worker and Chrome Extensions use original ESML eval
// this may lead to some global module execution differences (eg var not defining onto global)
if (isWorker || isBrowser && window.chrome && window.chrome.extension) {
__exec = function(load) {
if (load.metadata.integrity)
throw new Error('Subresource integrity checking is not supported in Web Workers or Chrome Extensions.');
try {
preExec(this);
new Function(getSource(load)).call(__global);
postExec();
}
catch(e) {
throw addToError(e, 'Evaluating ' + load.address);
}
};
}
// use script injection eval to get identical global script behaviour
else if (typeof document != 'undefined') {
var head;
var scripts = document.getElementsByTagName('script');
$__curScript = scripts[scripts.length - 1];
__exec = function(load) {
if (!head)
head = document.head || document.body || document.documentElement;
var script = document.createElement('script');
script.text = getSource(load);
var onerror = window.onerror;
var e;
window.onerror = function(_e) {
e = addToError(_e, 'Evaluating ' + load.address);
}
preExec(this);
if (load.metadata.integrity)
script.setAttribute('integrity', load.metadata.integrity);
if (load.metadata.nonce)
script.setAttribute('nonce', load.metadata.nonce);
head.appendChild(script);
head.removeChild(script);
postExec();
window.onerror = onerror;
if (e)
throw e;
}
}
else {
// global scoped eval for node
var vmModule = 'vm';
var vm = require(vmModule);
__exec = function(load) {
if (load.metadata.integrity)
throw new Error('Subresource integrity checking is unavailable in Node.');
try {
preExec(this);
vm.runInThisContext(getSource(load));
postExec();
}
catch(e) {
throw addToError(e.toString(), 'Evaluating ' + load.address);
}
};
}
})();// SystemJS Loader Class and Extension helpers
function SystemJSLoader() {
SystemLoader.call(this);
systemJSConstructor.call(this);
}
// inline Object.create-style class extension
function SystemProto() {};
SystemProto.prototype = SystemLoader.prototype;
SystemJSLoader.prototype = new SystemProto();
var systemJSConstructor;
function hook(name, hook) {
SystemJSLoader.prototype[name] = hook(SystemJSLoader.prototype[name]);
}
function hookConstructor(hook) {
systemJSConstructor = hook(systemJSConstructor || function() {});
}
function dedupe(deps) {
var newDeps = [];
for (var i = 0, l = deps.length; i < l; i++)
if (indexOf.call(newDeps, deps[i]) == -1)
newDeps.push(deps[i])
return newDeps;
}
function group(deps) {
var names = [];
var indices = [];
for (var i = 0, l = deps.length; i < l; i++) {
var index = indexOf.call(names, deps[i]);
if (index === -1) {
names.push(deps[i]);
indices.push([i]);
}
else {
indices[index].push(i);
}
}
return { names: names, indices: indices };
}
var getOwnPropertyDescriptor = true;
try {
Object.getOwnPropertyDescriptor({ a: 0 }, 'a');
}
catch(e) {
getOwnPropertyDescriptor = false;
}
// converts any module.exports object into an object ready for System.newModule
function getESModule(exports) {
var esModule = {};
// don't trigger getters/setters in environments that support them
if (typeof exports == 'object' || typeof exports == 'function') {
if (getOwnPropertyDescriptor) {
var d;
for (var p in exports)
if (d = Object.getOwnPropertyDescriptor(exports, p))
defineProperty(esModule, p, d);
}
else {
var hasOwnProperty = exports && exports.hasOwnProperty;
for (var p in exports) {
if (!hasOwnProperty || exports.hasOwnProperty(p))
esModule[p] = exports[p];
}
}
}
esModule['default'] = exports;
defineProperty(esModule, '__useDefault', {
value: true
});
return esModule;
}
function extend(a, b, prepend) {
for (var p in b) {
if (!prepend || !(p in a))
a[p] = b[p];
}
return a;
}
// package configuration options
var packageProperties = ['main', 'format', 'defaultExtension', 'meta', 'map', 'basePath'];
// meta first-level extends where:
// array + array appends
// object + object extends
// other properties replace
function extendMeta(a, b, prepend) {
for (var p in b) {
var val = b[p];
if (!(p in a))
a[p] = val;
else if (val instanceof Array && a[p] instanceof Array)
a[p] = [].concat(prepend ? val : a[p]).concat(prepend ? a[p] : val);
else if (typeof val == 'object' && typeof a[p] == 'object')
a[p] = extend(extend({}, a[p]), val, prepend);
else if (!prepend)
a[p] = val;
}
}
function dWarn(msg) {
if (this.deprecationWarnings && typeof console != 'undefined' && console.warn)
console.warn(msg + '\n\tDisable this message via System.config({ deprecationWarnings: false }).');
}var absURLRegEx = /^[^\/]+:\/\//;
function readMemberExpression(p, value) {
var pParts = p.split('.');
while (pParts.length)
value = value[pParts.shift()];
return value;
}
var baseURLCache = {};
function getBaseURLObj() {
if (baseURLCache[this.baseURL])
return baseURLCache[this.baseURL];
// normalize baseURL if not already
if (this.baseURL[this.baseURL.length - 1] != '/')
this.baseURL += '/';
var baseURL = new URL(this.baseURL, baseURI);
this.baseURL = baseURL.href;
return (baseURLCache[this.baseURL] = baseURL);
}
var baseURIObj = new URL(baseURI);
(function() {
hookConstructor(function(constructor) {
return function() {
constructor.call(this);
// support baseURL
this.baseURL = baseURI.substr(0, baseURI.lastIndexOf('/') + 1);
// support the empty module, as a concept
this.set('@empty', this.newModule({}));
};
});
/*
Normalization
If a name is relative, we apply URL normalization to the page
If a name is an absolute URL, we leave it as-is
Plain names (neither of the above) run through the map and package
normalization phases (applying before and after this one).
The paths normalization phase applies last (paths extension), which
defines the `normalizeSync` function and normalizes everything into
a URL.
The final normalization
*/
hook('normalize', function() {
return function(name, parentName) {
// relative URL-normalization
if (name[0] == '.' || name[0] == '/')
return new URL(name, parentName || baseURIObj).href;
return name;
};
});
/*
* Fetch with authorization
*/
hook('fetch', function() {
return function(load) {
return new Promise(function(resolve, reject) {
fetchTextFromURL(load.address, load.metadata.authorization, resolve, reject);
});
};
});
/*
__useDefault
When a module object looks like:
newModule(
__useDefault: true,
default: 'some-module'
})
Then importing that module provides the 'some-module'
result directly instead of the full module.
Useful for eg module.exports = function() {}
*/
hook('import', function(systemImport) {
return function(name, parentName, parentAddress) {
return systemImport.call(this, name, parentName, parentAddress).then(function(module) {
return module.__useDefault ? module['default'] : module;
});
};
});
/*
Extend config merging one deep only
loader.config({
some: 'random',
config: 'here',
deep: {
config: { too: 'too' }
}
});
<=>
loader.some = 'random';
loader.config = 'here'
loader.deep = loader.deep || {};
loader.deep.config = { too: 'too' };
Normalizes meta and package configs allowing for:
System.config({
meta: {
'./index.js': {}
}
});
To become
System.meta['https://thissite.com/index.js'] = {};
For easy normalization canonicalization with latest URL support.
*/
SystemJSLoader.prototype.deprecationWarnings = true;
SystemJSLoader.prototype.config = function(cfg) {
if ('deprecationWarnings' in cfg)
this.deprecationWarnings = cfg.deprecationWarnings;
// always configure baseURL first
if (cfg.baseURL) {
var hasConfig = false;
function checkHasConfig(obj) {
for (var p in obj)
return true;
}
if (checkHasConfig(this.packages) || checkHasConfig(this.meta) || checkHasConfig(this.depCache) || checkHasConfig(this.bundles))
throw new TypeError('baseURL should only be configured once and must be configured first.');
this.baseURL = cfg.baseURL;
// sanitize baseURL
getBaseURLObj.call(this);
}
if (cfg.defaultJSExtensions) {
this.defaultJSExtensions = cfg.defaultJSExtensions;
dWarn.call(this, 'The defaultJSExtensions configuration option is deprecated, use packages configuration instead.');
}
if (cfg.pluginFirst)
this.pluginFirst = cfg.pluginFirst;
if (cfg.paths) {
for (var p in cfg.paths)
this.paths[p] = cfg.paths[p];
}
if (cfg.map) {
for (var p in cfg.map) {
var v = cfg.map[p];
// object map backwards-compat into packages configuration
if (typeof v !== 'string') {
dWarn.call(this, 'The map configuration for "' + p + '" is an object, which is deprecated in global map.\nUpdate this to use package contextual map with System.config({ packages: { "' + p + '": { map: {...} } } }).');
var normalized = this.normalizeSync(p);
// if doing default js extensions, undo to get package name
if (this.defaultJSExtensions && p.substr(p.length - 3, 3) != '.js')
normalized = normalized.substr(0, normalized.length - 3);
// if a package main, revert it
var pkgMatch = '';
for (var pkg in this.packages) {
if (normalized.substr(0, pkg.length) == pkg
&& (!normalized[pkg.length] || normalized[pkg.length] == '/')
&& pkgMatch.split('/').length < pkg.split('/').length)
pkgMatch = pkg;
}
if (pkgMatch && this.packages[pkgMatch].main)
normalized = normalized.substr(0, normalized.length - this.packages[pkgMatch].main.length - 1);
var pkg = this.packages[normalized] = this.packages[normalized] || {};
pkg.map = v;
}
else {
this.map[p] = v;
}
}
}
if (cfg.packageConfigPaths) {
for (var i = 0; i < cfg.packageConfigPaths.length; i++) {
var path = cfg.packageConfigPaths[i];
var packageLength = Math.max(path.lastIndexOf('*') + 1, path.lastIndexOf('/'));
var normalized = this.normalizeSync(path.substr(0, packageLength) + '/');
if (this.defaultJSExtensions && path.substr(path.length - 3, 3) != '.js')
normalized = normalized.substr(0, normalized.length - 3);
cfg.packageConfigPaths[i] = normalized.substr(0, normalized.length - 1) + path.substr(packageLength);
}
}
if (cfg.packages) {
for (var p in cfg.packages) {
if (p.match(/^([^\/]+:)?\/\/$/))
throw new TypeError('"' + p + '" is not a valid package name.');
// request with trailing "/" to get package name exactly
var prop = this.normalizeSync(p + (p[p.length - 1] != '/' ? '/' : ''));
prop = prop.substr(0, prop.length - 1);
// if doing default js extensions, undo to get package name
if (this.defaultJSExtensions && p.substr(p.length - 3, 3) != '.js')
prop = prop.substr(0, prop.length - 3);
this.packages[prop]= this.packages[prop] || {};
for (var q in cfg.packages[p])
if (indexOf.call(packageProperties, q) == -1 && typeof console != 'undefined' && console.warn)
console.warn('"' + q + '" is not a valid package configuration option in package ' + p);
extendMeta(this.packages[prop], cfg.packages[p]);
}
}
if (cfg.bundles) {
for (var p in cfg.bundles) {
var bundle = [];
for (var i = 0; i < cfg.bundles[p].length; i++)
bundle.push(this.normalizeSync(cfg.bundles[p][i]));
this.bundles[p] = bundle;
}
}
for (var c in cfg) {
var v = cfg[c];
var normalizeProp = false, normalizeValArray = false;
if (c == 'baseURL' || c == 'map' || c == 'packages' || c == 'bundles' || c == 'paths' || c == 'deprecationWarnings')
continue;
if (typeof v != 'object' || v instanceof Array) {
this[c] = v;
}
else {
this[c] = this[c] || {};
if (c == 'meta' || c == 'depCache')
normalizeProp = true;
for (var p in v) {
if (c == 'meta' && p[0] == '*')
this[c][p] = v[p];
else if (normalizeProp)
this[c][this.normalizeSync(p)] = v[p];
else
this[c][p] = v[p];
}
}
}
};
})();/*
* Script tag fetch
*
* When load.metadata.scriptLoad is true, we load via script tag injection.
*/
(function() {
if (typeof document != 'undefined')
var head = document.getElementsByTagName('head')[0];
// call this functione everytime a wrapper executes
var curSystem;
// System clobbering protection for Traceur
SystemJSLoader.prototype.onScriptLoad = function() {
__global.System = curSystem;
};
function webWorkerImport(loader, load) {
return new Promise(function(resolve, reject) {
if (load.metadata.integrity)
reject(new Error('Subresource integrity checking is not supported in web workers.'));
try {
importScripts(load.address);
}
catch(e) {
reject(e);
}
loader.onScriptLoad(load);
// if nothing registered, then something went wrong
if (!load.metadata.registered)
reject(load.address + ' did not call System.register or AMD define');
resolve('');
});
}
// override fetch to use script injection
hook('fetch', function(fetch) {
return function(load) {
var loader = this;
if (!load.metadata.scriptLoad || (!isBrowser && !isWorker))
return fetch.call(this, load);
if (isWorker)
return webWorkerImport(loader, load);
return new Promise(function(resolve, reject) {
var s = document.createElement('script');
s.async = true;
function complete(evt) {
if (s.readyState && s.readyState != 'loaded' && s.readyState != 'complete')
return;
cleanup();
// this runs synchronously after execution
// we now need to tell the wrapper handlers that
// this load record has just executed
loader.onScriptLoad(load);
// if nothing registered, then something went wrong
if (!load.metadata.registered)
reject(load.address + ' did not call System.register or AMD define');
resolve('');
}
function error(evt) {
cleanup();
reject(new Error('Unable to load script ' + load.address));
}
if (s.attachEvent) {
s.attachEvent('onreadystatechange', complete);
}
else {
s.addEventListener('load', complete, false);
s.addEventListener('error', error, false);
}
curSystem = __global.System;
__global.System = loader;
s.src = load.address;
if (load.metadata.integrity)
s.setAttribute('integrity', load.metadata.integrity);
head.appendChild(s);
function cleanup() {
if (s.detachEvent)
s.detachEvent('onreadystatechange', complete);
else {
s.removeEventListener('load', complete, false);
s.removeEventListener('error', error, false);
}
head.removeChild(s);
}
});
};
});
})();
/*
* Instantiate registry extension
*
* Supports Traceur System.register 'instantiate' output for loading ES6 as ES5.
*
* - Creates the loader.register function
* - Also supports metadata.format = 'register' in instantiate for anonymous register modules
* - Also supports metadata.deps, metadata.execute and metadata.executingRequire
* for handling dynamic modules alongside register-transformed ES6 modules
*
*
* The code here replicates the ES6 linking groups algorithm to ensure that
* circular ES6 compiled into System.register can work alongside circular AMD
* and CommonJS, identically to the actual ES6 loader.
*
*/
(function() {
/*
* There are two variations of System.register:
* 1. System.register for ES6 conversion (2-3 params) - System.register([name, ]deps, declare)
* see https://github.com/ModuleLoader/es6-module-loader/wiki/System.register-Explained
*
* 2. System.registerDynamic for dynamic modules (3-4 params) - System.registerDynamic([name, ]deps, executingRequire, execute)
* the true or false statement
*
* this extension implements the linking algorithm for the two variations identical to the spec
* allowing compiled ES6 circular references to work alongside AMD and CJS circular references.
*
*/
var anonRegister;
var calledRegister = false;
function doRegister(loader, name, register) {
calledRegister = true;
// named register
if (name) {
// ideally wouldn't apply map config to bundle names but
// dependencies go through map regardless so we can't restrict
// could reconsider in shift to new spec
name = (loader.normalizeSync || loader.normalize).call(loader, name);
register.name = name;
if (!(name in loader.defined))
loader.defined[name] = register;
}
// anonymous register
else {
if (anonRegister)
throw new TypeError('Invalid anonymous System.register module load. If loading a single module, ensure anonymous System.register is loaded via System.import. If loading a bundle, ensure all the System.register calls are named.');
anonRegister = register;
}
}
SystemJSLoader.prototype.register = function(name, deps, declare) {
if (typeof name != 'string') {
declare = deps;
deps = name;
name = null;
}
// dynamic backwards-compatibility
// can be deprecated eventually
if (typeof declare == 'boolean')
return this.registerDynamic.apply(this, arguments);
doRegister(this, name, {
declarative: true,
deps: deps,
declare: declare
});
};
SystemJSLoader.prototype.registerDynamic = function(name, deps, declare, execute) {
if (typeof name != 'string') {
execute = declare;
declare = deps;
deps = name;
name = null;
}
// dynamic
doRegister(this, name, {
declarative: false,
deps: deps,
execute: execute,
executingRequire: declare
});
};
/*
* Registry side table - loader.defined
* Registry Entry Contains:
* - name
* - deps
* - declare for declarative modules
* - execute for dynamic modules, different to declarative execute on module
* - executingRequire indicates require drives execution for circularity of dynamic modules
* - declarative optional boolean indicating which of the above
*
* Can preload modules directly on System.defined['my/module'] = { deps, execute, executingRequire }
*
* Then the entry gets populated with derived information during processing:
* - normalizedDeps derived from deps, created in instantiate
* - groupIndex used by group linking algorithm
* - evaluated indicating whether evaluation has happend
* - module the module record object, containing:
* - exports actual module exports
*
* For dynamic we track the es module with:
* - esModule actual es module value
* - esmExports whether to extend the esModule with named exports
*
* Then for declarative only we track dynamic bindings with the 'module' records:
* - name
* - exports
* - setters declarative setter functions
* - dependencies, module records of dependencies
* - importers, module records of dependents
*
* After linked and evaluated, entries are removed, declarative module records remain in separate
* module binding table
*
*/
hookConstructor(function(constructor) {
return function() {
constructor.call(this);
this.defined = {};
this._loader.moduleRecords = {};
};
});
// script injection mode calls this function synchronously on load
hook('onScriptLoad', function(onScriptLoad) {
return function(load) {
onScriptLoad.call(this, load);
if (calledRegister) {
// anonymous define
if (anonRegister)
load.metadata.entry = anonRegister;
load.metadata.format = load.metadata.format || 'defined';
load.metadata.registered = true;
calledRegister = false;
anonRegister = null;
}
};
});
function buildGroups(entry, loader, groups) {
groups[entry.groupIndex] = groups[entry.groupIndex] || [];
if (indexOf.call(groups[entry.groupIndex], entry) != -1)
return;
groups[entry.groupIndex].push(entry);
for (var i = 0, l = entry.normalizedDeps.length; i < l; i++) {
var depName = entry.normalizedDeps[i];
var depEntry = loader.defined[depName];
// not in the registry means already linked / ES6
if (!depEntry || depEntry.evaluated)
continue;
// now we know the entry is in our unlinked linkage group
var depGroupIndex = entry.groupIndex + (depEntry.declarative != entry.declarative);
// the group index of an entry is always the maximum
if (depEntry.groupIndex === undefined || depEntry.groupIndex < depGroupIndex) {
// if already in a group, remove from the old group
if (depEntry.groupIndex !== undefined) {
groups[depEntry.groupIndex].splice(indexOf.call(groups[depEntry.groupIndex], depEntry), 1);
// if the old group is empty, then we have a mixed depndency cycle
if (groups[depEntry.groupIndex].length == 0)
throw new TypeError("Mixed dependency cycle detected");
}
depEntry.groupIndex = depGroupIndex;
}
buildGroups(depEntry, loader, groups);
}
}
function link(name, loader) {
var startEntry = loader.defined[name];
// skip if already linked
if (startEntry.module)
return;
startEntry.groupIndex = 0;
var groups = [];
buildGroups(startEntry, loader, groups);
var curGroupDeclarative = !!startEntry.declarative == groups.length % 2;
for (var i = groups.length - 1; i >= 0; i--) {
var group = groups[i];
for (var j = 0; j < group.length; j++) {
var entry = group[j];
// link each group
if (curGroupDeclarative)
linkDeclarativeModule(entry, loader);
else
linkDynamicModule(entry, loader);
}
curGroupDeclarative = !curGroupDeclarative;
}
}
// module binding records
function Module() {}
defineProperty(Module, 'toString', {
value: function() {
return 'Module';
}
});
function getOrCreateModuleRecord(name, moduleRecords) {
return moduleRecords[name] || (moduleRecords[name] = {
name: name,
dependencies: [],
exports: new Module(), // start from an empty module and extend
importers: []
});
}
function linkDeclarativeModule(entry, loader) {
// only link if already not already started linking (stops at circular)
if (entry.module)
return;
var moduleRecords = loader._loader.moduleRecords;
var module = entry.module = getOrCreateModuleRecord(entry.name, moduleRecords);
var exports = entry.module.exports;
var declaration = entry.declare.call(__global, function(name, value) {
module.locked = true;
if (typeof name == 'object') {
for (var p in name)
exports[p] = name[p];
}
else {
exports[name] = value;
}
for (var i = 0, l = module.importers.length; i < l; i++) {
var importerModule = module.importers[i];
if (!importerModule.locked) {
var importerIndex = indexOf.call(importerModule.dependencies, module);
importerModule.setters[importerIndex](exports);
}
}
module.locked = false;
return value;
});
module.setters = declaration.setters;
module.execute = declaration.execute;
if (!module.setters || !module.execute) {
throw new TypeError('Invalid System.register form for ' + entry.name);
}
// now link all the module dependencies
for (var i = 0, l = entry.normalizedDeps.length; i < l; i++) {
var depName = entry.normalizedDeps[i];
var depEntry = loader.defined[depName];
var depModule = moduleRecords[depName];
// work out how to set depExports based on scenarios...
var depExports;
if (depModule) {
depExports = depModule.exports;
}
// dynamic, already linked in our registry
else if (depEntry && !depEntry.declarative) {
depExports = depEntry.esModule;
}
// in the loader registry
else if (!depEntry) {
depExports = loader.get(depName);
}
// we have an entry -> link
else {
linkDeclarativeModule(depEntry, loader);
depModule = depEntry.module;
depExports = depModule.exports;
}
// only declarative modules have dynamic bindings
if (depModule && depModule.importers) {
depModule.importers.push(module);
module.dependencies.push(depModule);
}
else {
module.dependencies.push(null);
}
// run setters for all entries with the matching dependency name
var originalIndices = entry.originalIndices[i];
for (var j = 0, len = originalIndices.length; j < len; ++j) {
var index = originalIndices[j];
if (module.setters[index]) {
module.setters[index](depExports);
}
}
}
}
// An analog to loader.get covering execution of all three layers (real declarative, simulated declarative, simulated dynamic)
function getModule(name, loader) {
var exports;
var entry = loader.defined[name];
if (!entry) {
exports = loader.get(name);
if (!exports)
throw new Error('Unable to load dependency ' + name + '.');
}
else {
if (entry.declarative)
ensureEvaluated(name, [], loader);
else if (!entry.evaluated)
linkDynamicModule(entry, loader);
exports = entry.module.exports;
}
if ((!entry || entry.declarative) && exports && exports.__useDefault)
return exports['default'];
return exports;
}
function linkDynamicModule(entry, loader) {
if (entry.module)
return;
var exports = {};
var module = entry.module = { exports: exports, id: entry.name };
// AMD requires execute the tree first
if (!entry.executingRequire) {
for (var i = 0, l = entry.normalizedDeps.length; i < l; i++) {
var depName = entry.normalizedDeps[i];
// we know we only need to link dynamic due to linking algorithm
var depEntry = loader.defined[depName];
if (depEntry)
linkDynamicModule(depEntry, loader);
}
}
// now execute
entry.evaluated = true;
var output = entry.execute.call(__global, function(name) {
for (var i = 0, l = entry.deps.length; i < l; i++) {
if (entry.deps[i] != name)
continue;
return getModule(entry.normalizedDeps[i], loader);
}
throw new TypeError('Module ' + name + ' not declared as a dependency.');
}, exports, module);
if (output)
module.exports = output;
// create the esModule object, which allows ES6 named imports of dynamics
exports = module.exports;
// __esModule flag treats as already-named
if (exports && exports.__esModule)
entry.esModule = exports;
// set module as 'default' export, then fake named exports by iterating properties
else if (entry.esmExports)
entry.esModule = getESModule(exports);
// just use the 'default' export
else
entry.esModule = { 'default': exports };
}
/*
* Given a module, and the list of modules for this current branch,
* ensure that each of the dependencies of this module is evaluated
* (unless one is a circular dependency already in the list of seen
* modules, in which case we execute it)
*
* Then we evaluate the module itself depth-first left to right
* execution to match ES6 modules
*/
function ensureEvaluated(moduleName, seen, loader) {
var entry = loader.defined[moduleName];
// if already seen, that means it's an already-evaluated non circular dependency
if (!entry || entry.evaluated || !entry.declarative)
return;
// this only applies to declarative modules which late-execute
seen.push(moduleName);
for (var i = 0, l = entry.normalizedDeps.length; i < l; i++) {
var depName = entry.normalizedDeps[i];
if (indexOf.call(seen, depName) == -1) {
if (!loader.defined[depName])
loader.get(depName);
else
ensureEvaluated(depName, seen, loader);
}
}
if (entry.evaluated)
return;
entry.evaluated = true;
entry.module.execute.call(__global);
}
// override the delete method to also clear the register caches
hook('delete', function(del) {
return function(name) {
delete this._loader.moduleRecords[name];
delete this.defined[name];
return del.call(this, name);
};
});
var leadingCommentAndMetaRegEx = /^\s*(\/\*[^\*]*(\*(?!\/)[^\*]*)*\*\/|\s*\/\/[^\n]*|\s*"[^"]+"\s*;?|\s*'[^']+'\s*;?)*\s*/;
function detectRegisterFormat(source) {
var leadingCommentAndMeta = source.match(leadingCommentAndMetaRegEx);
return leadingCommentAndMeta && source.substr(leadingCommentAndMeta[0].length, 15) == 'System.register';
}
hook('fetch', function(fetch) {
return function(load) {
if (this.defined[load.name]) {
load.metadata.format = 'defined';
return '';
}
// this is the synchronous chain for onScriptLoad
anonRegister = null;
calledRegister = false;
if (load.metadata.format == 'register' && !load.metadata.authorization)
load.metadata.scriptLoad = true;
// NB remove when "deps " is deprecated
load.metadata.deps = load.metadata.deps || [];
return fetch.call(this, load);
};
});
hook('translate', function(translate) {
// we run the meta detection here (register is after meta)
return function(load) {
return Promise.resolve(translate.call(this, load)).then(function(source) {
if (typeof load.metadata.deps === 'string')
load.metadata.deps = load.metadata.deps.split(',');
load.metadata.deps = load.metadata.deps || [];
// run detection for register format
if (load.metadata.format == 'register' || load.metadata.bundle || !load.metadata.format && detectRegisterFormat(load.source))
load.metadata.format = 'register';
return source;
});
};
});
hook('instantiate', function(instantiate) {
return function(load) {
var loader = this;
var entry;
// first we check if this module has already been defined in the registry
if (loader.defined[load.name]) {
entry = loader.defined[load.name];
entry.deps = entry.deps.concat(load.metadata.deps);
}
// picked up already by a script injection
else if (load.metadata.entry)
entry = load.metadata.entry;
// otherwise check if it is dynamic
else if (load.metadata.execute) {
entry = {
declarative: false,
deps: load.metadata.deps || [],
execute: load.metadata.execute,
executingRequire: load.metadata.executingRequire // NodeJS-style requires or not
};
}
// Contains System.register calls
else if (load.metadata.format == 'register' || load.metadata.format == 'esm' || load.metadata.format == 'es6') {
anonRegister = null;
calledRegister = false;
if (typeof __exec != 'undefined')
__exec.call(loader, load);
if (!calledRegister && !load.metadata.registered)
throw new TypeError(load.name + ' detected as System.register but didn\'t execute.');
if (anonRegister)
entry = anonRegister;
else
load.metadata.bundle = true;
if (!entry && loader.defined[load.name])
entry = loader.defined[load.name];
anonRegister = null;
calledRegister = false;
}
// named bundles are just an empty module
if (!entry)
entry = {
declarative: false,
deps: load.metadata.deps,
execute: function() {
return loader.newModule({});
}
};
// place this module onto defined for circular references
loader.defined[load.name] = entry;
var grouped = group(entry.deps);
entry.deps = grouped.names;
entry.originalIndices = grouped.indices;
entry.name = load.name;
entry.esmExports = load.metadata.esmExports !== false;
// first, normalize all dependencies
var normalizePromises = [];
for (var i = 0, l = entry.deps.length; i < l; i++)
normalizePromises.push(Promise.resolve(loader.normalize(entry.deps[i], load.name)));
return Promise.all(normalizePromises).then(function(normalizedDeps) {
entry.normalizedDeps = normalizedDeps;
return {
deps: entry.deps,
execute: function() {
// recursively ensure that the module and all its
// dependencies are linked (with dependency group handling)
link(load.name, loader);
// now handle dependency execution in correct order
ensureEvaluated(load.name, [], loader);
// remove from the registry
loader.defined[load.name] = undefined;
// return the defined module object
return loader.newModule(entry.declarative ? entry.module.exports : entry.esModule);
}
};
});
};
});
})();
/*
* Extension to detect ES6 and auto-load Traceur or Babel for processing
*/
(function() {
// good enough ES6 module detection regex - format detections not designed to be accurate, but to handle the 99% use case
var esmRegEx = /(^\s*|[}\);\n]\s*)(import\s+(['"]|(\*\s+as\s+)?[^"'\(\)\n;]+\s+from\s+['"]|\{)|export\s+\*\s+from\s+["']|export\s+(\{|default|function|class|var|const|let|async\s+function))/;
var traceurRuntimeRegEx = /\$traceurRuntime\s*\./;
var babelHelpersRegEx = /babelHelpers\s*\./;
hook('translate', function(translate) {
return function(load) {
var loader = this;
return translate.call(loader, load)
.then(function(source) {
// detect & transpile ES6
if (load.metadata.format == 'esm' || load.metadata.format == 'es6' || !load.metadata.format && source.match(esmRegEx)) {
if (load.metadata.format == 'es6')
dWarn.call(loader, 'Module ' + load.name + ' has metadata setting its format to "es6", which is deprecated.\nThis should be updated to "esm".');
load.metadata.format = 'esm';
if (loader.transpiler === false)
throw new TypeError('Unable to dynamically transpile ES module as System.transpiler set to false.');
// setting _loadedTranspiler = false tells the next block to
// do checks for setting transpiler metadata
loader._loadedTranspiler = loader._loadedTranspiler || false;
if (loader.pluginLoader)
loader.pluginLoader._loadedTranspiler = loader._loadedTranspiler || false;
// builder support
if (loader.builder)
load.metadata.originalSource = load.source;
// defined in es6-module-loader/src/transpile.js
return transpile.call(loader, load)
.then(function(source) {
// clear sourceMap as transpiler embeds it
load.metadata.sourceMap = undefined;
return source;
});
}
// load the transpiler correctly
if (loader._loadedTranspiler === false && load.name == loader.normalizeSync(loader.transpiler)) {
// always load transpiler as a global
if (source.length > 100) {
load.metadata.format = load.metadata.format || 'global';
if (loader.transpiler === 'traceur')
load.metadata.exports = 'traceur';
if (loader.transpiler === 'typescript')
load.metadata.exports = 'ts';
}
loader._loadedTranspiler = true;
}
// load the transpiler runtime correctly
if (loader._loadedTranspilerRuntime === false) {
if (load.name == loader.normalizeSync('traceur-runtime')
|| load.name == loader.normalizeSync('babel/external-helpers*')) {
if (source.length > 100)
load.metadata.format = load.metadata.format || 'global';
loader._loadedTranspilerRuntime = true;
}
}
// detect transpiler runtime usage to load runtimes
if (load.metadata.format == 'register' && loader._loadedTranspilerRuntime !== true) {
if (!__global.$traceurRuntime && load.source.match(traceurRuntimeRegEx)) {
loader._loadedTranspilerRuntime = loader._loadedTranspilerRuntime || false;
return loader['import']('traceur-runtime').then(function() {
return source;
});
}
if (!__global.babelHelpers && load.source.match(babelHelpersRegEx)) {
loader._loadedTranspilerRuntime = loader._loadedTranspilerRuntime || false;
return loader['import']('babel/external-helpers').then(function() {
return source;
});
}
}
return source;
});
};
});
})();
/*
SystemJS Global Format
Supports
metadata.deps
metadata.globals
metadata.exports
Without metadata.exports, detects writes to the global object.
*/
var __globalName = typeof self != 'undefined' ? 'self' : 'global';
hook('onScriptLoad', function(onScriptLoad) {
return function(load) {
if (load.metadata.format == 'global') {
load.metadata.registered = true;
var globalValue = readMemberExpression(load.metadata.exports, __global);
load.metadata.execute = function() {
return globalValue;
}
}
return onScriptLoad.call(this, load);
};
});
hook('fetch', function(fetch) {
return function(load) {
if (load.metadata.exports)
load.metadata.format = 'global';
// A global with exports, no globals and no deps
// can be loaded via a script tag
if (load.metadata.format == 'global' && !load.metadata.authorization
&& load.metadata.exports && !load.metadata.globals
&& (!load.metadata.deps || load.metadata.deps.length == 0))
load.metadata.scriptLoad = true;
return fetch.call(this, load);
};
});
// ideally we could support script loading for globals, but the issue with that is that
// we can't do it with AMD support side-by-side since AMD support means defining the
// global define, and global support means not definining it, yet we don't have any hook
// into the "pre-execution" phase of a script tag being loaded to handle both cases
hook('instantiate', function(instantiate) {
return function(load) {
var loader = this;
if (!load.metadata.format)
load.metadata.format = 'global';
// globals shorthand support for:
// globals = ['Buffer'] where we just require 'Buffer' in the current context
if (load.metadata.globals) {
if (load.metadata.globals instanceof Array) {
var globals = {};
for (var i = 0; i < load.metadata.globals.length; i++)
globals[load.metadata.globals[i]] = load.metadata.globals[i];
load.metadata.globals = globals;
}
}
// global is a fallback module format
if (load.metadata.format == 'global' && !load.metadata.registered) {
for (var g in load.metadata.globals)
load.metadata.deps.push(load.metadata.globals[g]);
load.metadata.execute = function(require, exports, module) {
var globals;
if (load.metadata.globals) {
globals = {};
for (var g in load.metadata.globals)
globals[g] = require(load.metadata.globals[g]);
}
var exportName = load.metadata.exports;
if (exportName)
load.source += '\n' + __globalName + '["' + exportName + '"] = ' + exportName + ';';
var retrieveGlobal = loader.get('@@global-helpers').prepareGlobal(module.id, exportName, globals);
__exec.call(loader, load);
return retrieveGlobal();
}
}
return instantiate.call(this, load);
};
});
hookConstructor(function(constructor) {
return function() {
var loader = this;
constructor.call(loader);
var hasOwnProperty = Object.prototype.hasOwnProperty;
// bare minimum ignores for IE8
var ignoredGlobalProps = ['_g', 'sessionStorage', 'localStorage', 'clipboardData', 'frames', 'external', 'mozAnimationStartTime', 'webkitStorageInfo', 'webkitIndexedDB'];
var globalSnapshot;
function forEachGlobal(callback) {
if (Object.keys)
Object.keys(__global).forEach(callback);
else
for (var g in __global) {
if (!hasOwnProperty.call(__global, g))
continue;
callback(g);
}
}
function forEachGlobalValue(callback) {
forEachGlobal(function(globalName) {
if (indexOf.call(ignoredGlobalProps, globalName) != -1)
return;
try {
var value = __global[globalName];
}
catch (e) {
ignoredGlobalProps.push(globalName);
}
callback(globalName, value);
});
}
loader.set('@@global-helpers', loader.newModule({
prepareGlobal: function(moduleName, exportName, globals) {
// disable module detection
var curDefine = __global.define;
__global.define = undefined;
__global.exports = undefined;
if (__global.module && __global.module.exports)
__global.module = undefined;
// set globals
var oldGlobals;
if (globals) {
oldGlobals = {};
for (var g in globals) {
oldGlobals[g] = globals[g];
__global[g] = globals[g];
}
}
// store a complete copy of the global object in order to detect changes
if (!exportName) {
globalSnapshot = {};
forEachGlobalValue(function(name, value) {
globalSnapshot[name] = value;
});
}
// return function to retrieve global
return function() {
var globalValue;
if (exportName) {
globalValue = readMemberExpression(exportName, __global);
}
else {
var singleGlobal;
var multipleExports;
var exports = {};
forEachGlobalValue(function(name, value) {
if (globalSnapshot[name] === value)
return;
if (typeof value == 'undefined')
return;
exports[name] = value;
if (typeof singleGlobal != 'undefined') {
if (!multipleExports && singleGlobal !== value)
multipleExports = true;
}
else {
singleGlobal = value;
}
});
globalValue = multipleExports ? exports : singleGlobal;
}
// revert globals
if (oldGlobals) {
for (var g in oldGlobals)
__global[g] = oldGlobals[g];
}
__global.define = curDefine;
return globalValue;
};
}
}));
};
});
/*
SystemJS CommonJS Format
*/
(function() {
// CJS Module Format
// require('...') || exports[''] = ... || exports.asd = ... || module.exports = ...
var cjsExportsRegEx = /(?:^\uFEFF?|[^$_a-zA-Z\xA0-\uFFFF.]|module\.)exports\s*(\[['"]|\.)|(?:^\uFEFF?|[^$_a-zA-Z\xA0-\uFFFF.])module\.exports\s*[=,]/;
// RegEx adjusted from https://github.com/jbrantly/yabble/blob/master/lib/yabble.js#L339
var cjsRequireRegEx = /(?:^\uFEFF?|[^$_a-zA-Z\xA0-\uFFFF."'])require\s*\(\s*("[^"\\]*(?:\\.[^"\\]*)*"|'[^'\\]*(?:\\.[^'\\]*)*')\s*\)/g;
var commentRegEx = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg;
function getCJSDeps(source) {
cjsRequireRegEx.lastIndex = commentRegEx.lastIndex = 0;
var deps = [];
// track comments in the source
var match;
var commentLocations = [];
if (source.length / source.split('\n').length < 200) {
while (match = commentRegEx.exec(source))
commentLocations.push([match.index, match.index + match[0].length]);
}
while (match = cjsRequireRegEx.exec(source)) {
// ensure we're not in a comment location
var inComment = false;
for (var i = 0; i < commentLocations.length; i++) {
if (commentLocations[i][0] < match.index && commentLocations[i][1] > match.index + match[0].length)
inComment = true;
}
if (!inComment)
deps.push(match[1].substr(1, match[1].length - 2));
}
return deps;
}
if (typeof window != 'undefined' && typeof document != 'undefined' && window.location)
var windowOrigin = location.protocol + '//' + (location.protocol == 'file:' && location.hostname[0] != '/' ? '/' : '') + location.hostname + (location.port ? ':' + location.port : '');
hookConstructor(function(constructor) {
return function() {
constructor.call(this);
// include the node require since we're overriding it
if (typeof require != 'undefined' && require.resolve && typeof process != 'undefined')
this._nodeRequire = require;
};
});
hook('normalize', function(normalize) {
return function (name, parentName) {
// dynamically load node-core modules when requiring `@node/fs` for example
if (name.substr(0, 6) == '@node/') {
if (!this._nodeRequire)
throw new TypeError('Can only load node core modules in Node.');
this.set(name, this.newModule(getESModule(this._nodeRequire(name.substr(6)))));
}
return normalize.apply(this, arguments);
};
});
hook('instantiate', function(instantiate) {
return function(load) {
var loader = this;
if (!load.metadata.format) {
cjsExportsRegEx.lastIndex = 0;
cjsRequireRegEx.lastIndex = 0;
if (cjsRequireRegEx.exec(load.source) || cjsExportsRegEx.exec(load.source))
load.metadata.format = 'cjs';
}
if (load.metadata.format == 'cjs') {
var metaDeps = load.metadata.deps || [];
load.metadata.deps = metaDeps.concat(getCJSDeps(load.source));
for (var g in load.metadata.globals)
load.metadata.deps.push(load.metadata.globals[g]);
load.metadata.executingRequire = true;
load.metadata.execute = function(require, exports, module) {
// ensure meta deps execute first
for (var i = 0; i < metaDeps.length; i++)
require(metaDeps[i]);
var address = load.address || '';
var dirname = address.split('/');
dirname.pop();
dirname = dirname.join('/');
if (windowOrigin && address.substr(0, windowOrigin.length) === windowOrigin) {
address = address.substr(windowOrigin.length);
dirname = dirname.substr(windowOrigin.length);
}
else if (address.substr(0, 8) == 'file:///') {
address = address.substr(7);
dirname = dirname.substr(7);
// on windows remove leading '/'
if (isWindows) {
address = address.substr(1);
dirname = dirname.substr(1);
}
}
// disable AMD detection
var define = __global.define;
__global.define = undefined;
__global.__cjsWrapper = {
exports: exports,
args: [require, exports, module, address, dirname, __global, __global]
};
var globals = '';
if (load.metadata.globals) {
for (var g in load.metadata.globals)
globals += 'var ' + g + ' = require("' + load.metadata.globals[g] + '");';
}
load.source = "(function(require, exports, module, __filename, __dirname, global, GLOBAL) {" + globals
+ load.source + "\n}).apply(__cjsWrapper.exports, __cjsWrapper.args);";
__exec.call(loader, load);
__global.__cjsWrapper = undefined;
__global.define = define;
};
}
return instantiate.call(loader, load);
};
});
})();
/*
* AMD Helper function module
* Separated into its own file as this is the part needed for full AMD support in SFX builds
*
*/
hookConstructor(function(constructor) {
return function() {
var loader = this;
constructor.call(this);
var commentRegEx = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg;
var cjsRequirePre = "(?:^|[^$_a-zA-Z\\xA0-\\uFFFF.])";
var cjsRequirePost = "\\s*\\(\\s*(\"([^\"]+)\"|'([^']+)')\\s*\\)";
var fnBracketRegEx = /\(([^\)]*)\)/;
var wsRegEx = /^\s+|\s+$/g;
var requireRegExs = {};
function getCJSDeps(source, requireIndex) {
// remove comments
source = source.replace(commentRegEx, '');
// determine the require alias
var params = source.match(fnBracketRegEx);
var requireAlias = (params[1].split(',')[requireIndex] || 'require').replace(wsRegEx, '');
// find or generate the regex for this requireAlias
var requireRegEx = requireRegExs[requireAlias] || (requireRegExs[requireAlias] = new RegExp(cjsRequirePre + requireAlias + cjsRequirePost, 'g'));
requireRegEx.lastIndex = 0;
var deps = [];
var match;
while (match = requireRegEx.exec(source))
deps.push(match[2] || match[3]);
return deps;
}
/*
AMD-compatible require
To copy RequireJS, set window.require = window.requirejs = loader.amdRequire
*/
function require(names, callback, errback, referer) {
// in amd, first arg can be a config object... we just ignore
if (typeof names == 'object' && !(names instanceof Array))
return require.apply(null, Array.prototype.splice.call(arguments, 1, arguments.length - 1));
// amd require
if (typeof names == 'string' && typeof callback == 'function')
names = [names];
if (names instanceof Array) {
var dynamicRequires = [];
for (var i = 0; i < names.length; i++)
dynamicRequires.push(loader['import'](names[i], referer));
Promise.all(dynamicRequires).then(function(modules) {
if (callback)
callback.apply(null, modules);
}, errback);
}
// commonjs require
else if (typeof names == 'string') {
var module = loader.get(loader.normalizeSync(names, referer));
if (!module)
throw new Error('Module not already loaded loading "' + names + '" from "' + referer + '".');
return module.__useDefault ? module['default'] : module;
}
else
throw new TypeError('Invalid require');
}
function define(name, deps, factory) {
if (typeof name != 'string') {
factory = deps;
deps = name;
name = null;
}
if (!(deps instanceof Array)) {
factory = deps;
deps = ['require', 'exports', 'module'].splice(0, factory.length);
}
if (typeof factory != 'function')
factory = (function(factory) {
return function() { return factory; }
})(factory);
// in IE8, a trailing comma becomes a trailing undefined entry
if (deps[deps.length - 1] === undefined)
deps.pop();
// remove system dependencies
var requireIndex, exportsIndex, moduleIndex;
if ((requireIndex = indexOf.call(deps, 'require')) != -1) {
deps.splice(requireIndex, 1);
// only trace cjs requires for non-named
// named defines assume the trace has already been done
if (!name)
deps = deps.concat(getCJSDeps(factory.toString(), requireIndex));
}
if ((exportsIndex = indexOf.call(deps, 'exports')) != -1)
deps.splice(exportsIndex, 1);
if ((moduleIndex = indexOf.call(deps, 'module')) != -1)
deps.splice(moduleIndex, 1);
var define = {
name: name,
deps: deps,
execute: function(req, exports, module) {
var depValues = [];
for (var i = 0; i < deps.length; i++)
depValues.push(req(deps[i]));
module.uri = module.id;
module.config = function() {};
// add back in system dependencies
if (moduleIndex != -1)
depValues.splice(moduleIndex, 0, module);
if (exportsIndex != -1)
depValues.splice(exportsIndex, 0, exports);
if (requireIndex != -1) {
function contextualRequire(names, callback, errback) {
if (typeof names == 'string' && typeof callback != 'function')
return req(names);
return require.call(loader, names, callback, errback, module.id);
}
contextualRequire.toUrl = function(name) {
// normalize without defaultJSExtensions
var defaultJSExtension = loader.defaultJSExtensions && name.substr(name.length - 3, 3) != '.js';
var url = loader.normalizeSync(name, module.id);
if (defaultJSExtension && url.substr(url.length - 3, 3) == '.js')
url = url.substr(0, url.length - 3);
return url;
};
depValues.splice(requireIndex, 0, contextualRequire);
}
// set global require to AMD require
var curRequire = __global.require;
__global.require = require;
var output = factory.apply(exportsIndex == -1 ? __global : exports, depValues);
__global.require = curRequire;
if (typeof output == 'undefined' && module)
output = module.exports;
if (typeof output != 'undefined')
return output;
}
};
// anonymous define
if (!name) {
// already defined anonymously -> throw
if (lastModule.anonDefine)
throw new TypeError('Multiple defines for anonymous module');
lastModule.anonDefine = define;
}
// named define
else {
// if we don't have any other defines,
// then let this be an anonymous define
// this is just to support single modules of the form:
// define('jquery')
// still loading anonymously
// because it is done widely enough to be useful
if (!lastModule.anonDefine && !lastModule.isBundle) {
lastModule.anonDefine = define;
}
// otherwise its a bundle only
else {
// if there is an anonDefine already (we thought it could have had a single named define)
// then we define it now
// this is to avoid defining named defines when they are actually anonymous
if (lastModule.anonDefine && lastModule.anonDefine.name)
loader.registerDynamic(lastModule.anonDefine.name, lastModule.anonDefine.deps, false, lastModule.anonDefine.execute);
lastModule.anonDefine = null;
}
// note this is now a bundle
lastModule.isBundle = true;
// define the module through the register registry
loader.registerDynamic(name, define.deps, false, define.execute);
}
}
define.amd = {};
// adds define as a global (potentially just temporarily)
function createDefine(loader) {
lastModule.anonDefine = null;
lastModule.isBundle = false;
// ensure no NodeJS environment detection
var oldModule = __global.module;
var oldExports = __global.exports;
var oldDefine = __global.define;
__global.module = undefined;
__global.exports = undefined;
__global.define = define;
return function() {
__global.define = oldDefine;
__global.module = oldModule;
__global.exports = oldExports;
};
}
var lastModule = {
isBundle: false,
anonDefine: null
};
loader.set('@@amd-helpers', loader.newModule({
createDefine: createDefine,
require: require,
define: define,
lastModule: lastModule
}));
loader.amdDefine = define;
loader.amdRequire = require;
};
});/*
SystemJS AMD Format
Provides the AMD module format definition at System.format.amd
as well as a RequireJS-style require on System.require
*/
(function() {
// AMD Module Format Detection RegEx
// define([.., .., ..], ...)
// define(varName); || define(function(require, exports) {}); || define({})
var amdRegEx = /(?:^\uFEFF?|[^$_a-zA-Z\xA0-\uFFFF.])define\s*\(\s*("[^"]+"\s*,\s*|'[^']+'\s*,\s*)?\s*(\[(\s*(("[^"]+"|'[^']+')\s*,|\/\/.*\r?\n|\/\*(.|\s)*?\*\/))*(\s*("[^"]+"|'[^']+')\s*,?)?(\s*(\/\/.*\r?\n|\/\*(.|\s)*?\*\/))*\s*\]|function\s*|{|[_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*\))/;
// script injection mode calls this function synchronously on load
hook('onScriptLoad', function(onScriptLoad) {
return function(load) {
onScriptLoad.call(this, load);
var lastModule = this.get('@@amd-helpers').lastModule;
if (lastModule.anonDefine || lastModule.isBundle) {
load.metadata.format = 'defined';
load.metadata.registered = true;
lastModule.isBundle = false;
}
if (lastModule.anonDefine) {
load.metadata.deps = load.metadata.deps ? load.metadata.deps.concat(lastModule.anonDefine.deps) : lastModule.anonDefine.deps;
load.metadata.execute = lastModule.anonDefine.execute;
lastModule.anonDefine = null;
}
};
});
hook('fetch', function(fetch) {
return function(load) {
if (load.metadata.format === 'amd' && !load.metadata.authorization)
load.metadata.scriptLoad = true;
if (load.metadata.scriptLoad)
this.get('@@amd-helpers').createDefine(this);
return fetch.call(this, load);
};
});
hook('instantiate', function(instantiate) {
return function(load) {
var loader = this;
if (load.metadata.format == 'amd' || !load.metadata.format && load.source.match(amdRegEx)) {
load.metadata.format = 'amd';
if (!loader.builder && loader.execute !== false) {
var removeDefine = this.get('@@amd-helpers').createDefine(loader);
__exec.call(loader, load);
removeDefine(loader);
var lastModule = this.get('@@amd-helpers').lastModule;
if (!lastModule.anonDefine && !lastModule.isBundle)
throw new TypeError('AMD module ' + load.name + ' did not define');
if (lastModule.anonDefine) {
load.metadata.deps = load.metadata.deps ? load.metadata.deps.concat(lastModule.anonDefine.deps) : lastModule.anonDefine.deps;
load.metadata.execute = lastModule.anonDefine.execute;
}
lastModule.isBundle = false;
lastModule.anonDefine = null;
}
else {
load.metadata.execute = function() {
return load.metadata.builderExecute.apply(this, arguments);
};
}
return instantiate.call(loader, load);
}
return instantiate.call(loader, load);
};
});
})();
/*
SystemJS map support
Provides map configuration through
System.map['jquery'] = 'some/module/map'
Note that this applies for subpaths, just like RequireJS:
jquery -> 'some/module/map'
jquery/path -> 'some/module/map/path'
bootstrap -> 'bootstrap'
The most specific map is always taken, as longest path length
*/
hookConstructor(function(constructor) {
return function() {
constructor.call(this);
this.map = {};
};
});
hook('normalize', function(normalize) {
return function(name, parentName) {
if (name.substr(0, 1) != '.' && name.substr(0, 1) != '/' && !name.match(absURLRegEx)) {
var bestMatch, bestMatchLength = 0;
// now do the global map
for (var p in this.map) {
if (name.substr(0, p.length) == p && (name.length == p.length || name[p.length] == '/')) {
var curMatchLength = p.split('/').length;
if (curMatchLength <= bestMatchLength)
continue;
bestMatch = p;
bestMatchLength = curMatchLength;
}
}
if (bestMatch)
name = this.map[bestMatch] + name.substr(bestMatch.length);
}
return normalize.apply(this, arguments);
};
});
/*
* Paths extension
*
* Applies paths and normalizes to a full URL
*/
hook('normalize', function(normalize) {
return function(name, parentName) {
var normalized = normalize.apply(this, arguments);
// if the module is in the registry already, use that
if (this.has(normalized))
return normalized;
// percent encode just '#' in urls
if (isBrowser)
normalized = normalized.replace(/#/g, '%23');
if (normalized.match(absURLRegEx)) {
// defaultJSExtensions backwards compatibility
if (this.defaultJSExtensions && normalized.substr(normalized.length - 3, 3) != '.js')
normalized += '.js';
return normalized;
}
// applyPaths implementation provided from ModuleLoader system.js source
normalized = applyPaths(this.paths, normalized) || normalized;
// defaultJSExtensions backwards compatibility
if (this.defaultJSExtensions && normalized.substr(normalized.length - 3, 3) != '.js')
normalized += '.js';
// ./x, /x -> page-relative
if (normalized[0] == '.' || normalized[0] == '/')
return new URL(normalized, baseURIObj).href;
// x -> baseURL-relative
else
return new URL(normalized, getBaseURLObj.call(this)).href;
};
});/*
* Package Configuration Extension
*
* Example:
*
* System.packages = {
* jquery: {
* basePath: 'lib', // optionally only use a subdirectory within the package
* main: 'index.js', // when not set, package name is requested directly
* format: 'amd',
* defaultExtension: 'ts', // defaults to 'js', can be set to false
* meta: {
* '*.ts': {
* loader: 'typescript'
* },
* 'vendor/sizzle.js': {
* format: 'global'
* }
* },
* map: {
* // map internal require('sizzle') to local require('./vendor/sizzle')
* sizzle: './vendor/sizzle.js',
* // map any internal or external require of 'jquery/vendor/another' to 'another/index.js'
* './vendor/another.js': './another/index.js',
* // test.js / test -> lib/test.js
* './test.js': './lib/test.js',
*
* // environment-specific map configurations
* './index.js': {
* '~browser': './index-node.js'
* }
* }
* }
* };
*
* Then:
* import 'jquery' -> jquery/index.js
* import 'jquery/submodule' -> jquery/submodule.js
* import 'jquery/submodule.ts' -> jquery/submodule.ts loaded as typescript
* import 'jquery/vendor/another' -> another/index.js
*
* Detailed Behaviours
* - main is the only property where a leading "./" can be added optionally
* - map and defaultExtension are applied to the main
* - defaultExtension adds the extension only if no other extension is present
* - defaultJSExtensions applies after map when defaultExtension is not set
* - if a meta value is available for a module, map and defaultExtension are skipped
* - like global map, package map also applies to subpaths (sizzle/x, ./vendor/another/sub)
* - condition module map is '@env' module in package or '@system-env' globally
*
* In addition, the following meta properties will be allowed to be package
* -relative as well in the package meta config:
*
* - loader
* - alias
*
*
* Package Configuration Loading
*
* Not all packages may already have their configuration present in the System config
* For these cases, a list of packageConfigPaths can be provided, which when matched against
* a request, will first request a ".json" file by the package name to derive the package
* configuration from. This allows dynamic loading of non-predetermined code, a key use
* case in SystemJS.
*
* Example:
*
* System.packageConfigPaths = ['packages/test/package.json', 'packages/*.json'];
*
* // will first request 'packages/new-package/package.json' for the package config
* // before completing the package request to 'packages/new-package/path'
* System.import('packages/new-package/path');
*
* // will first request 'packages/test/package.json' before the main
* System.import('packages/test');
*
* When a package matches packageConfigPaths, it will always send a config request for
* the package configuration.
* The package name itself is taken to be the match up to and including the last wildcard
* or trailing slash.
* Package config paths are ordered - matching is done based on the first match found.
* Any existing package configurations for the package will deeply merge with the
* package config, with the existing package configurations taking preference.
* To opt-out of the package configuration request for a package that matches
* packageConfigPaths, use the { loadConfig: false } package config option.
*
*/
(function() {
hookConstructor(function(constructor) {
return function() {
constructor.call(this);
this.packages = {};
this.packageConfigPaths = {};
};
});
function getPackage(name) {
// use most specific package
var curPkg, curPkgLen = 0, pkgLen;
for (var p in this.packages) {
if (name.substr(0, p.length) === p && (name.length === p.length || name[p.length] === '/')) {
pkgLen = p.split('/').length;
if (pkgLen > curPkgLen) {
curPkg = p;
curPkgLen = pkgLen;
}
}
}
return curPkg;
}
function applyMap(map, name) {
var bestMatch, bestMatchLength = 0;
for (var p in map) {
if (name.substr(0, p.length) == p && (name.length == p.length || name[p.length] == '/')) {
var curMatchLength = p.split('/').length;
if (curMatchLength <= bestMatchLength)
continue;
bestMatch = p;
bestMatchLength = curMatchLength;
}
}
return bestMatch;
}
function envMap(loader, pkgName, pkgMap, name) {
var map = applyMap(pkgMap, name);
var mapped = pkgMap[map];
// conditional package map
if (mapped) {
if (typeof mapped == 'object') {
return loader['import'](pkgMap['@env'] || '@system-env', pkgName)
.then(function(env) {
// first map condition to match is used
for (var e in mapped) {
var negate = e[0] == '~';
var value = readMemberExpression(negate ? e.substr(1) : e, env);
if (!negate && value || negate && !value)
return mapped[e] + name.substr(map.length);
}
});
}
// normal map
else {
return mapped + name.substr(map.length);
}
}
}
function getBasePath(pkg) {
// sanitize basePath
var basePath = pkg.basePath && pkg.basePath != '.' ? pkg.basePath : '';
if (basePath) {
if (basePath.substr(0, 2) == './')
basePath = basePath.substr(2);
if (basePath[basePath.length - 1] != '/')
basePath += '/';
}
return basePath;
}
// given the package subpath, return the resultant combined path
// defaultExtension is only added if the path does not have
// loader package meta or exact package meta
function toPackagePath(pkgName, pkg, basePath, subPath, isPlugin) {
var normalized = pkgName + '/' + basePath + subPath;
var hasExtensionMeta = isPlugin;
if (pkg.meta)
getMetaMatches(pkg.meta, basePath, pkgName, normalized, function(metaPattern, matchMeta, matchDepth) {
// exact meta or meta with any content after the last wildcard skips extension
if (matchDepth == 0 || metaPattern.lastIndexOf('*') != metaPattern.length - 1)
hasExtensionMeta = true;
});
return normalized + (hasExtensionMeta ? '' : getDefaultExtension(pkg, subPath));
}
function getDefaultExtension(pkg, subPath) {
// don't apply extensions to folders or if defaultExtension = false
if (subPath[subPath.length - 1] != '/' && pkg.defaultExtension !== false) {
// work out what the defaultExtension is and add if not there already
var defaultExtension = '.' + (pkg.defaultExtension || 'js');
if (subPath.substr(subPath.length - defaultExtension.length) != defaultExtension)
return defaultExtension;
}
return '';
}
function applyPackageConfig(normalized, pkgName, sync, isPlugin) {
var loader = this;
var pkg = loader.packages[pkgName];
var basePath = getBasePath(pkg);
// main
if (pkgName === normalized && pkg.main)
normalized += '/' + (pkg.main.substr(0, 2) == './' ? pkg.main.substr(2) : pkg.main);
// allow for direct package name normalization with trailling "/" (no main)
if (normalized.length == pkgName.length + 1 && normalized[pkgName.length] == '/')
return normalized;
// no submap if name is package itself
if (normalized.length == pkgName.length)
return normalized + (loader.defaultJSExtensions && normalized.substr(normalized.length - 3, 3) != '.js' ? '.js' : '');
// sync normalize does not apply package map
if (sync || !pkg.map)
return toPackagePath(pkgName, pkg, basePath, normalized.substr(pkgName.length + 1));
var subPath = '.' + normalized.substr(pkgName.length);
// apply submap checking without then with defaultExtension
return Promise.resolve(envMap(loader, pkgName, pkg.map, subPath))
.then(function(mapped) {
if (mapped)
return mapped;
var defaultExtension = isPlugin && getDefaultExtension(pkg, subPath.substr(2));
if (defaultExtension)
return envMap(loader, pkgName, pkg.map, subPath + defaultExtension);
})
.then(function(mapped) {
if (mapped) {
// '.' as a target is the package itself (with package main check)
if (mapped == '.')
return loader.normalizeSync(pkgName);
// internal package map
else if (mapped.substr(0, 2) == './')
return toPackagePath(pkgName, pkg, basePath, mapped.substr(2), isPlugin);
// global package map
else
return loader.normalize.call(loader, mapped);
}
else {
return toPackagePath(pkgName, pkg, basePath, normalized.substr(pkgName.length + 1), isPlugin);
}
});
}
var packageConfigPathsRegExps = {};
var pkgConfigPromises = {};
function createPackageNormalize(normalize, sync) {
return function(name, parentName, isPlugin) {
// apply contextual package map first
if (parentName) {
var parentPackage = getPackage.call(this, parentName) ||
this.defaultJSExtensions && parentName.substr(parentName.length - 3, 3) == '.js' &&
getPackage.call(this, parentName.substr(0, parentName.length - 3));
}
if (parentPackage && name[0] !== '.') {
var parentMap = this.packages[parentPackage].map;
if (parentMap) {
var map = applyMap(parentMap, name);
if (map) {
name = parentMap[map] + name.substr(map.length);
// relative maps are package-relative
if (name[0] === '.')
parentName = parentPackage + '/';
}
}
}
var defaultJSExtension = this.defaultJSExtensions && name.substr(name.length - 3, 3) != '.js';
// apply global map, relative normalization
var normalized = normalize.call(this, name, parentName);
// undo defaultJSExtension
if (defaultJSExtension && normalized.substr(normalized.length - 3, 3) != '.js')
defaultJSExtension = false;
if (defaultJSExtension)
normalized = normalized.substr(0, normalized.length - 3);
// check if we are inside a package
var pkgName = getPackage.call(this, normalized);
var loader = this;
// check if we match a packageConfigPaths
if (!sync) {
var pkgPath, pkgConfigPath;
for (var i = 0; i < this.packageConfigPaths.length; i++) {
var p = this.packageConfigPaths[i];
var pPkgLen = Math.max(p.lastIndexOf('*') + 1, p.lastIndexOf('/'));
var match = normalized.match(packageConfigPathsRegExps[p] ||
(packageConfigPathsRegExps[p] = new RegExp('^(' + p.substr(0, pPkgLen).replace(/\*/g, '[^\\/]+') + ')(\/|$)')));
if (match) {
pkgPath = match[1];
pkgConfigPath = pkgPath + p.substr(pPkgLen);
break;
}
}
if (pkgPath && (!pkgName || pkgName != pkgPath || loader.packages[pkgName].loadConfig !== false)) {
return (pkgConfigPromises[pkgPath] ||
(pkgConfigPromises[pkgPath] =
loader['fetch']({ name: pkgConfigPath, address: pkgConfigPath, metadata: {} })
.then(function(source) {
try {
return JSON.parse(source);
}
catch(e) {
throw new Error('Invalid JSON in package configuration file ' + pkgPath);
}
})
.then(function(cfg) {
// support "systemjs" prefixing
if (cfg.systemjs)
cfg = cfg.systemjs;
// remove any non-system properties if generic config file (eg package.json)
for (var p in cfg) {
if (indexOf.call(packageProperties, p) == -1)
delete cfg[p];
}
// support main array
if (cfg.main instanceof Array)
cfg.main = cfg.main[0];
// deeply-merge (to first level) config with any existing package config
if (pkgName && pkgName == pkgPath)
extendMeta(cfg, loader.packages[pkgPath]);
loader.packages[pkgPath] = cfg;
})
)
)
.then(function() {
// finally apply the package config we just created to the current request
return applyPackageConfig.call(loader, normalized, pkgPath, sync, isPlugin);
});
}
}
if (pkgName)
return applyPackageConfig.call(loader, normalized, pkgName, sync, isPlugin);
// add back defaultJSExtension if not a package
if (defaultJSExtension)
normalized += '.js';
return normalized;
};
}
SystemJSLoader.prototype.normalizeSync = SystemJSLoader.prototype.normalize;
hook('normalizeSync', function(normalize) {
return createPackageNormalize(normalize, true);
});
hook('normalize', function(normalize) {
return createPackageNormalize(normalize, false);
});
function getMetaMatches(pkgMeta, basePath, pkgName, normalized, matchFn) {
// wildcard meta
var meta = {};
var wildcardIndex;
for (var module in pkgMeta) {
// allow meta to start with ./ for flexibility
var dotRel = module.substr(0, 2) == './' ? './' : '';
if (dotRel)
module = module.substr(2);
wildcardIndex = module.indexOf('*');
if (wildcardIndex === -1)
continue;
if (basePath + module.substr(0, wildcardIndex) === normalized.substr(pkgName.length + 1, wildcardIndex + basePath.length)
&& module.substr(wildcardIndex + 1) === normalized.substr(normalized.length - module.length + wildcardIndex + 1)) {
matchFn(module, pkgMeta[dotRel + module], module.split('/').length);
}
}
// exact meta
var metaName = normalized.substr(pkgName.length + basePath.length + 1);
var exactMeta = pkgMeta[metaName] || pkgMeta['./' + metaName];
if (exactMeta && normalized.substr(pkgName.length + 1, basePath.length) == basePath)
matchFn(exactMeta, exactMeta, 0);
}
hook('locate', function(locate) {
return function(load) {
var loader = this;
return Promise.resolve(locate.call(this, load))
.then(function(address) {
var pkgName = getPackage.call(loader, load.name);
if (pkgName) {
var pkg = loader.packages[pkgName];
var basePath = getBasePath(pkg);
// format
if (pkg.format)
load.metadata.format = load.metadata.format || pkg.format;
var meta = {};
if (pkg.meta) {
var bestDepth = 0;
getMetaMatches(pkg.meta, basePath, pkgName, load.name, function(metaPattern, matchMeta, matchDepth) {
if (matchDepth > bestDepth)
bestDepth = matchDepth;
extendMeta(meta, matchMeta, matchDepth && bestDepth > matchDepth);
});
// allow alias and loader to be package-relative
if (meta.alias && meta.alias.substr(0, 2) == './')
meta.alias = pkgName + meta.alias.substr(1);
if (meta.loader && meta.loader.substr(0, 2) == './')
meta.loader = pkgName + meta.loader.substr(1);
extendMeta(load.metadata, meta);
}
}
return address;
});
};
});
})();/*
SystemJS Loader Plugin Support
Supports plugin loader syntax with "!", or via metadata.loader
The plugin name is loaded as a module itself, and can override standard loader hooks
for the plugin resource. See the plugin section of the systemjs readme.
*/
(function() {
// sync or async plugin normalize function
function normalizePlugin(normalize, name, parentName, isPlugin, sync) {
var loader = this;
// if parent is a plugin, normalize against the parent plugin argument only
if (parentName) {
var parentPluginIndex;
if (loader.pluginFirst) {
if ((parentPluginIndex = parentName.lastIndexOf('!')) != -1)
parentName = parentName.substr(parentPluginIndex + 1);
}
else {
if ((parentPluginIndex = parentName.indexOf('!')) != -1)
parentName = parentName.substr(0, parentPluginIndex);
}
}
// if this is a plugin, normalize the plugin name and the argument
var pluginIndex = name.lastIndexOf('!');
if (pluginIndex != -1) {
var argumentName;
var pluginName;
if (loader.pluginFirst) {
argumentName = name.substr(pluginIndex + 1);
pluginName = name.substr(0, pluginIndex);
}
else {
argumentName = name.substr(0, pluginIndex);
pluginName = name.substr(pluginIndex + 1) || argumentName.substr(argumentName.lastIndexOf('.') + 1);
}
// note if normalize will add a default js extension
// if so, remove for backwards compat
// this is strange and sucks, but will be deprecated
var defaultExtension = loader.defaultJSExtensions && argumentName.substr(argumentName.length - 3, 3) != '.js';
// put name back together after parts have been normalized
function normalizePluginParts(argumentName, pluginName) {
if (defaultExtension && argumentName.substr(argumentName.length - 3, 3) == '.js')
argumentName = argumentName.substr(0, argumentName.length - 3);
if (loader.pluginFirst) {
return pluginName + '!' + argumentName;
}
else {
return argumentName + '!' + pluginName;
}
}
if (sync) {
argumentName = loader.normalizeSync(argumentName, parentName);
pluginName = loader.normalizeSync(pluginName, parentName);
return normalizePluginParts(argumentName, pluginName);
}
else {
// third argument represents that this is a plugin call
// which in turn will skip default extension adding within packages
return Promise.all([
loader.normalize(argumentName, parentName, true),
loader.normalize(pluginName, parentName, true)
])
.then(function(normalized) {
return normalizePluginParts(normalized[0], normalized[1]);
});
}
}
else {
return normalize.call(loader, name, parentName, isPlugin);
}
}
// async plugin normalize
hook('normalize', function(normalize) {
return function(name, parentName, isPlugin) {
return normalizePlugin.call(this, normalize, name, parentName, isPlugin, false);
};
});
hook('normalizeSync', function(normalizeSync) {
return function(name, parentName, isPlugin) {
return normalizePlugin.call(this, normalizeSync, name, parentName, isPlugin, true);
};
});
hook('locate', function(locate) {
return function(load) {
var loader = this;
var name = load.name;
// plugin syntax
var pluginSyntaxIndex;
if (loader.pluginFirst) {
if ((pluginSyntaxIndex = name.indexOf('!')) != -1) {
load.metadata.loader = name.substr(0, pluginSyntaxIndex);
load.name = name.substr(pluginSyntaxIndex + 1);
}
}
else {
if ((pluginSyntaxIndex = name.lastIndexOf('!')) != -1) {
load.metadata.loader = name.substr(pluginSyntaxIndex + 1);
load.name = name.substr(0, pluginSyntaxIndex);
}
}
return locate.call(loader, load)
.then(function(address) {
var plugin = load.metadata.loader;
if (!plugin)
return address;
// only fetch the plugin itself if this name isn't defined
if (loader.defined && loader.defined[name])
return address;
var pluginLoader = loader.pluginLoader || loader;
// load the plugin module and run standard locate
return pluginLoader['import'](plugin)
.then(function(loaderModule) {
// store the plugin module itself on the metadata
load.metadata.loaderModule = loaderModule;
load.address = address;
if (loaderModule.locate)
return loaderModule.locate.call(loader, load);
return address;
});
});
};
});
hook('fetch', function(fetch) {
return function(load) {
var loader = this;
if (load.metadata.loaderModule && load.metadata.loaderModule.fetch) {
load.metadata.scriptLoad = false;
return load.metadata.loaderModule.fetch.call(loader, load, function(load) {
return fetch.call(loader, load);
});
}
else {
return fetch.call(loader, load);
}
};
});
hook('translate', function(translate) {
return function(load) {
var loader = this;
if (load.metadata.loaderModule && load.metadata.loaderModule.translate)
return Promise.resolve(load.metadata.loaderModule.translate.call(loader, load)).then(function(result) {
if (typeof result == 'string')
load.source = result;
return translate.call(loader, load);
});
else
return translate.call(loader, load);
};
});
hook('instantiate', function(instantiate) {
return function(load) {
var loader = this;
/*
* Source map sanitization for load.metadata.sourceMap
* Used to set browser and build-level source maps for
* translated sources in a general way.
*/
var sourceMap = load.metadata.sourceMap;
// if an object not a JSON string do sanitizing
if (sourceMap && typeof sourceMap == 'object') {
var originalName = load.name.split('!')[0];
// force set the filename of the original file
sourceMap.file = originalName + '!transpiled';
// force set the sources list if only one source
if (!sourceMap.sources || sourceMap.sources.length == 1)
sourceMap.sources = [originalName];
load.metadata.sourceMap = JSON.stringify(sourceMap);
}
if (load.metadata.loaderModule && load.metadata.loaderModule.instantiate)
return Promise.resolve(load.metadata.loaderModule.instantiate.call(loader, load)).then(function(result) {
load.metadata.format = 'defined';
load.metadata.execute = function() {
return result;
};
return instantiate.call(loader, load);
});
else
return instantiate.call(loader, load);
};
});
})();
/*
* Alias Extension
*
* Allows a module to be a plain copy of another module by module name
*
* System.meta['mybootstrapalias'] = { alias: 'bootstrap' };
*
*/
(function() {
// aliases
hook('fetch', function(fetch) {
return function(load) {
var alias = load.metadata.alias;
var aliasDeps = load.metadata.deps || [];
if (alias) {
load.metadata.format = 'defined';
this.defined[load.name] = {
declarative: true,
deps: aliasDeps.concat([alias]),
declare: function(_export) {
return {
setters: [function(module) {
for (var p in module)
_export(p, module[p]);
}],
execute: function() {}
};
}
};
return '';
}
return fetch.call(this, load);
};
});
})();/*
* Meta Extension
*
* Sets default metadata on a load record (load.metadata) from
* loader.metadata via System.meta function.
*
*
* Also provides an inline meta syntax for module meta in source.
*
* Eg:
*
* loader.meta({
* 'my/module': { deps: ['jquery'] }
* 'my/*': { format: 'amd' }
* });
*
* Which in turn populates loader.metadata.
*
* load.metadata.deps and load.metadata.format will then be set
* for 'my/module'
*
* The same meta could be set with a my/module.js file containing:
*
* my/module.js
* "format amd";
* "deps[] jquery";
* "globals.some value"
* console.log('this is my/module');
*
* Configuration meta always takes preference to inline meta.
*
* Multiple matches in wildcards are supported and ammend the meta.
*
*
* The benefits of the function form is that paths are URL-normalized
* supporting say
*
* loader.meta({ './app': { format: 'cjs' } });
*
* Instead of needing to set against the absolute URL (https://site.com/app.js)
*
*/
(function() {
hookConstructor(function(constructor) {
return function() {
this.meta = {};
constructor.call(this);
};
});
hook('locate', function(locate) {
return function(load) {
var meta = this.meta;
var name = load.name;
// NB for perf, maybe introduce a fast-path wildcard lookup cache here
// which is checked first
// apply wildcard metas
var bestDepth = 0;
var wildcardIndex;
for (var module in meta) {
wildcardIndex = module.indexOf('*');
if (wildcardIndex === -1)
continue;
if (module.substr(0, wildcardIndex) === name.substr(0, wildcardIndex)
&& module.substr(wildcardIndex + 1) === name.substr(name.length - module.length + wildcardIndex + 1)) {
var depth = module.split('/').length;
if (depth > bestDepth)
bestDetph = depth;
extendMeta(load.metadata, meta[module], bestDepth != depth);
}
}
// apply exact meta
if (meta[name])
extendMeta(load.metadata, meta[name]);
return locate.call(this, load);
};
});
// detect any meta header syntax
// only set if not already set
var metaRegEx = /^(\s*\/\*[^\*]*(\*(?!\/)[^\*]*)*\*\/|\s*\/\/[^\n]*|\s*"[^"]+"\s*;?|\s*'[^']+'\s*;?)+/;
var metaPartRegEx = /\/\*[^\*]*(\*(?!\/)[^\*]*)*\*\/|\/\/[^\n]*|"[^"]+"\s*;?|'[^']+'\s*;?/g;
function setMetaProperty(target, p, value) {
var pParts = p.split('.');
var curPart;
while (pParts.length > 1) {
curPart = pParts.shift();
target = target[curPart] = target[curPart] || {};
}
curPart = pParts.shift();
if (!(curPart in target))
target[curPart] = value;
}
hook('translate', function(translate) {
return function(load) {
// NB meta will be post-translate pending transpiler conversion to plugins
var meta = load.source.match(metaRegEx);
if (meta) {
var metaParts = meta[0].match(metaPartRegEx);
for (var i = 0; i < metaParts.length; i++) {
var curPart = metaParts[i];
var len = curPart.length;
var firstChar = curPart.substr(0, 1);
if (curPart.substr(len - 1, 1) == ';')
len--;
if (firstChar != '"' && firstChar != "'")
continue;
var metaString = curPart.substr(1, curPart.length - 3);
var metaName = metaString.substr(0, metaString.indexOf(' '));
if (metaName) {
var metaValue = metaString.substr(metaName.length + 1, metaString.length - metaName.length - 1);
if (metaName.substr(metaName.length - 2, 2) == '[]') {
metaName = metaName.substr(0, metaName.length - 2);
load.metadata[metaName] = load.metadata[metaName] || [];
load.metadata[metaName].push(metaValue);
}
else if (load.metadata[metaName] instanceof Array) {
// temporary backwards compat for previous "deps" syntax
dWarn.call(this, 'Module ' + load.name + ' contains deprecated "deps ' + metaValue + '" meta syntax.\nThis should be updated to "deps[] ' + metaValue + '" for pushing to array meta.');
load.metadata[metaName].push(metaValue);
}
else {
setMetaProperty(load.metadata, metaName, metaValue);
}
}
else {
load.metadata[metaString] = true;
}
}
}
return translate.call(this, load);
};
});
})();/*
System bundles
Allows a bundle module to be specified which will be dynamically
loaded before trying to load a given module.
For example:
System.bundles['mybundle'] = ['jquery', 'bootstrap/js/bootstrap']
Will result in a load to "mybundle" whenever a load to "jquery"
or "bootstrap/js/bootstrap" is made.
In this way, the bundle becomes the request that provides the module
*/
(function() {
// bundles support (just like RequireJS)
// bundle name is module name of bundle itself
// bundle is array of modules defined by the bundle
// when a module in the bundle is requested, the bundle is loaded instead
// of the form System.bundles['mybundle'] = ['jquery', 'bootstrap/js/bootstrap']
hookConstructor(function(constructor) {
return function() {
constructor.call(this);
this.bundles = {};
this.loadedBundles_ = {};
};
});
function loadFromBundle(loader, bundle) {
return Promise.resolve(loader.normalize(bundle))
.then(function(normalized) {
loader.loadedBundles_[normalized] = true;
loader.bundles[normalized] = loader.bundles[normalized] || loader.bundles[bundle];
return loader.load(normalized);
})
.then(function() {
return '';
});
}
// assign bundle metadata for bundle loads
hook('locate', function(locate) {
return function(load) {
if (load.name in this.loadedBundles_ || load.name in this.bundles)
load.metadata.bundle = true;
return locate.call(this, load);
};
});
hook('fetch', function(fetch) {
return function(load) {
var loader = this;
if (loader.trace || loader.builder)
return fetch.call(loader, load);
// if already defined, no need to load a bundle
if (load.name in loader.defined)
return '';
// check if it is in an already-loaded bundle
for (var b in loader.loadedBundles_) {
if (indexOf.call(loader.bundles[b], load.name) != -1)
return loadFromBundle(loader, b);
}
// check if it is a new bundle
for (var b in loader.bundles) {
if (indexOf.call(loader.bundles[b], load.name) != -1)
return loadFromBundle(loader, b);
}
return fetch.call(loader, load);
};
});
})();
/*
* Dependency Tree Cache
*
* Allows a build to pre-populate a dependency trace tree on the loader of
* the expected dependency tree, to be loaded upfront when requesting the
* module, avoinding the n round trips latency of module loading, where
* n is the dependency tree depth.
*
* eg:
* System.depCache = {
* 'app': ['normalized', 'deps'],
* 'normalized': ['another'],
* 'deps': ['tree']
* };
*
* System.import('app')
* // simultaneously starts loading all of:
* // 'normalized', 'deps', 'another', 'tree'
* // before "app" source is even loaded
*/
(function() {
hookConstructor(function(constructor) {
return function() {
constructor.call(this);
this.depCache = {};
}
});
hook('locate', function(locate) {
return function(load) {
var loader = this;
// load direct deps, in turn will pick up their trace trees
var deps = loader.depCache[load.name];
if (deps)
for (var i = 0; i < deps.length; i++)
loader['import'](deps[i]);
return locate.call(loader, load);
};
});
})();
/*
* Conditions Extension
*
* Allows a condition module to alter the resolution of an import via syntax:
*
* import $ from 'jquery/#{browser}';
*
* Will first load the module 'browser' via `System.import('browser')` and
* take the default export of that module.
* If the default export is not a string, an error is thrown.
*
* We then substitute the string into the require to get the conditional resolution
* enabling environment-specific variations like:
*
* import $ from 'jquery/ie'
* import $ from 'jquery/firefox'
* import $ from 'jquery/chrome'
* import $ from 'jquery/safari'
*
* It can be useful for a condition module to define multiple conditions.
* This can be done via the `.` modifier to specify a member expression:
*
* import 'jquery/#{browser.grade}'
*
* Where the `grade` export of the `browser` module is taken for substitution.
*
* Note that `/` and a leading `.` are not permitted within conditional modules
* so that this syntax can be well-defined.
*
*
* Boolean Conditionals
*
* For polyfill modules, that are used as imports but have no module value,
* a binary conditional allows a module not to be loaded at all if not needed:
*
* import 'es5-shim#?conditions.needs-es5shim'
*
*/
(function() {
var conditionalRegEx = /#\{[^\}]+\}|#\?.+$/;
hookConstructor(function(constructor) {
return function() {
constructor.call(this);
// standard environment module, starting small as backwards-compat matters!
this.set('@system-env', this.newModule({
browser: isBrowser,
node: !!this._nodeRequire
}));
};
});
hook('normalize', function(normalize) {
return function(name, parentName) {
var args = arguments;
var loader = this;
var conditionalMatch = name.match(conditionalRegEx);
if (conditionalMatch) {
var substitution = conditionalMatch[0][1] != '?';
var conditionModule = substitution ? conditionalMatch[0].substr(2, conditionalMatch[0].length - 3) : conditionalMatch[0].substr(2);
if (conditionModule[0] == '.' || conditionModule.indexOf('/') != -1)
throw new TypeError('Invalid condition ' + conditionalMatch[0] + '\n\tCondition modules cannot contain . or / in the name.');
var conditionExport;
var conditionExportIndex = conditionModule.indexOf('.');
if (conditionExportIndex != -1) {
conditionExport = conditionModule.substr(conditionExportIndex + 1);
conditionModule = conditionModule.substr(0, conditionExportIndex);
}
var booleanNegation = !substitution && conditionModule[0] == '~';
if (booleanNegation)
conditionModule = conditionModule.substr(1);
var pluginLoader = loader.pluginLoader || loader;
return pluginLoader['import'](conditionModule, parentName)
.then(function(m) {
if (conditionExport === undefined) {
// CommonJS case
if (typeof m == 'string')
return m;
else
return m['default'];
}
return readMemberExpression(conditionExport, m);
})
.then(function(conditionValue) {
if (substitution) {
if (typeof conditionValue !== 'string')
throw new TypeError('The condition value for ' + conditionModule + ' doesn\'t resolve to a string.');
name = name.replace(conditionalRegEx, conditionValue);
}
else {
if (typeof conditionValue !== 'boolean')
throw new TypeError('The condition value for ' + conditionModule + ' isn\'t resolving to a boolean.');
if (booleanNegation)
conditionValue = !conditionValue;
if (!conditionValue)
name = '@empty';
else
name = name.replace(conditionalRegEx, '');
}
return normalize.apply(loader, args);
});
}
return Promise.resolve(normalize.apply(loader, args));
};
});
})();System = new SystemJSLoader();
System.constructor = SystemJSLoader;
System.version = '0.19.0-dev Standard';
// -- exporting --
if (typeof exports === 'object')
module.exports = Loader;
__global.Reflect = __global.Reflect || {};
__global.Reflect.Loader = __global.Reflect.Loader || Loader;
__global.Reflect.global = __global.Reflect.global || __global;
__global.LoaderPolyfill = Loader;
if (!System) {
System = new SystemLoader();
System.constructor = SystemLoader;
}
if (typeof exports === 'object')
module.exports = System;
__global.System = System;
})(typeof self != 'undefined' ? self : global);}
// auto-load Promise and URL polyfills if needed in the browser
try {
var hasURL = typeof URLPolyfill != 'undefined' || new URL('test:///').protocol == 'test:';
}
catch(e) {}
if (typeof Promise === 'undefined' || !hasURL) {
// document.write
if (typeof document !== 'undefined') {
var scripts = document.getElementsByTagName('script');
$__curScript = scripts[scripts.length - 1];
var curPath = $__curScript.src;
var basePath = curPath.substr(0, curPath.lastIndexOf('/') + 1);
window.systemJSBootstrap = bootstrap;
document.write(
'<' + 'script type="text/javascript" src="' + basePath + 'system-polyfills.js">' + '<' + '/script>'
);
}
// importScripts
else if (typeof importScripts !== 'undefined') {
var basePath = '';
try {
throw new Error('_');
} catch (e) {
e.stack.replace(/(?:at|@).*(http.+):[\d]+:[\d]+/, function(m, url) {
basePath = url.replace(/\/[^\/]*$/, '/');
});
}
importScripts(basePath + 'system-polyfills.js');
bootstrap();
}
else {
bootstrap();
}
}
else {
bootstrap();
}
})();