mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
3d797b8836
This patch implements the core part of let/const statements. Redeclarations are correctly detected and separate contexts are correctly created for these statements. Register optimizations are also emplyed whenever possible. Lots of features are still missing: - checking the var statements in eval - const are treated as lets - single statement checks are missing - export declarations are exported as vars, let/const export is not supported JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
180 lines
10 KiB
C
180 lines
10 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef JS_PARSER_H
|
|
#define JS_PARSER_H
|
|
|
|
#include "ecma-globals.h"
|
|
|
|
/** \addtogroup parser Parser
|
|
* @{
|
|
*
|
|
* \addtogroup jsparser JavaScript
|
|
* @{
|
|
*
|
|
* \addtogroup jsparser_parser Parser
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* Error codes.
|
|
*/
|
|
typedef enum
|
|
{
|
|
PARSER_ERR_NO_ERROR, /**< no error */
|
|
|
|
PARSER_ERR_OUT_OF_MEMORY, /**< out of memory */
|
|
PARSER_ERR_LITERAL_LIMIT_REACHED, /**< maximum number of literals reached */
|
|
PARSER_ERR_SCOPE_STACK_LIMIT_REACHED, /**< maximum depth of scope stack reached */
|
|
PARSER_ERR_ARGUMENT_LIMIT_REACHED, /**< maximum number of function arguments reached */
|
|
PARSER_ERR_STACK_LIMIT_REACHED, /**< maximum function stack size reached */
|
|
|
|
PARSER_ERR_INVALID_CHARACTER, /**< unexpected character */
|
|
PARSER_ERR_INVALID_HEX_DIGIT, /**< invalid hexadecimal digit */
|
|
PARSER_ERR_INVALID_ESCAPE_SEQUENCE, /**< invalid escape sequence */
|
|
PARSER_ERR_INVALID_UNICODE_ESCAPE_SEQUENCE, /**< invalid unicode escape sequence */
|
|
PARSER_ERR_INVALID_IDENTIFIER_START, /**< character cannot be start of an identifier */
|
|
PARSER_ERR_INVALID_IDENTIFIER_PART, /**< character cannot be part of an identifier */
|
|
|
|
PARSER_ERR_INVALID_NUMBER, /**< invalid number literal */
|
|
PARSER_ERR_MISSING_EXPONENT, /**< missing exponent */
|
|
PARSER_ERR_IDENTIFIER_AFTER_NUMBER, /**< identifier start after number */
|
|
|
|
PARSER_ERR_INVALID_REGEXP, /**< invalid regular expression */
|
|
PARSER_ERR_UNKNOWN_REGEXP_FLAG, /**< unknown regexp flag */
|
|
PARSER_ERR_DUPLICATED_REGEXP_FLAG, /**< duplicated regexp flag */
|
|
PARSER_ERR_UNSUPPORTED_REGEXP, /**< regular expression is not supported */
|
|
|
|
PARSER_ERR_IDENTIFIER_TOO_LONG, /**< too long identifier */
|
|
PARSER_ERR_STRING_TOO_LONG, /**< too long string literal */
|
|
PARSER_ERR_NUMBER_TOO_LONG, /**< too long number literal */
|
|
PARSER_ERR_REGEXP_TOO_LONG, /**< too long regexp literal */
|
|
|
|
PARSER_ERR_UNTERMINATED_MULTILINE_COMMENT, /**< unterminated multiline comment */
|
|
PARSER_ERR_UNTERMINATED_STRING, /**< unterminated string literal */
|
|
PARSER_ERR_UNTERMINATED_REGEXP, /**< unterminated regexp literal */
|
|
|
|
PARSER_ERR_NEWLINE_NOT_ALLOWED, /**< newline is not allowed */
|
|
PARSER_ERR_OCTAL_NUMBER_NOT_ALLOWED, /**< octal numbers are not allowed in strict mode */
|
|
PARSER_ERR_OCTAL_ESCAPE_NOT_ALLOWED, /**< octal escape sequences are not allowed in strict mode */
|
|
PARSER_ERR_STRICT_IDENT_NOT_ALLOWED, /**< identifier name is reserved in strict mode */
|
|
PARSER_ERR_EVAL_NOT_ALLOWED, /**< eval is not allowed here in strict mode */
|
|
PARSER_ERR_ARGUMENTS_NOT_ALLOWED, /**< arguments is not allowed here in strict mode */
|
|
PARSER_ERR_DELETE_IDENT_NOT_ALLOWED, /**< identifier delete is not allowed in strict mode */
|
|
PARSER_ERR_EVAL_CANNOT_ASSIGNED, /**< eval cannot be assigned in strict mode */
|
|
PARSER_ERR_ARGUMENTS_CANNOT_ASSIGNED, /**< arguments cannot be assigned in strict mode */
|
|
PARSER_ERR_WITH_NOT_ALLOWED, /**< with statement is not allowed in strict mode */
|
|
PARSER_ERR_MULTIPLE_DEFAULTS_NOT_ALLOWED, /**< multiple default cases are not allowed */
|
|
PARSER_ERR_DEFAULT_NOT_IN_SWITCH, /**< default statement is not in switch block */
|
|
PARSER_ERR_CASE_NOT_IN_SWITCH, /**< case statement is not in switch block */
|
|
|
|
PARSER_ERR_LEFT_PAREN_EXPECTED, /**< left paren expected */
|
|
PARSER_ERR_LEFT_BRACE_EXPECTED, /**< left brace expected */
|
|
PARSER_ERR_RIGHT_PAREN_EXPECTED, /**< right paren expected */
|
|
PARSER_ERR_RIGHT_SQUARE_EXPECTED, /**< right square expected */
|
|
|
|
PARSER_ERR_COLON_EXPECTED, /**< colon expected */
|
|
PARSER_ERR_COLON_FOR_CONDITIONAL_EXPECTED, /**< colon expected for conditional expression */
|
|
PARSER_ERR_SEMICOLON_EXPECTED, /**< semicolon expected */
|
|
PARSER_ERR_IN_EXPECTED, /**< in keyword expected */
|
|
PARSER_ERR_WHILE_EXPECTED, /**< while expected for do-while loop */
|
|
PARSER_ERR_CATCH_FINALLY_EXPECTED, /**< catch or finally expected */
|
|
PARSER_ERR_ARRAY_ITEM_SEPARATOR_EXPECTED, /**< array item separator expected */
|
|
PARSER_ERR_OBJECT_ITEM_SEPARATOR_EXPECTED, /**< object item separator expected */
|
|
PARSER_ERR_IDENTIFIER_EXPECTED, /**< identifier expected */
|
|
PARSER_ERR_EXPRESSION_EXPECTED, /**< expression expected */
|
|
PARSER_ERR_PRIMARY_EXP_EXPECTED, /**< primary expression expected */
|
|
PARSER_ERR_STATEMENT_EXPECTED, /**< statement expected */
|
|
PARSER_ERR_PROPERTY_IDENTIFIER_EXPECTED, /**< property identifier expected */
|
|
PARSER_ERR_ARGUMENT_LIST_EXPECTED, /**< argument list expected */
|
|
PARSER_ERR_NO_ARGUMENTS_EXPECTED, /**< property getters must have no arguments */
|
|
PARSER_ERR_ONE_ARGUMENT_EXPECTED, /**< property setters must have one argument */
|
|
|
|
PARSER_ERR_INVALID_EXPRESSION, /**< invalid expression */
|
|
PARSER_ERR_INVALID_SWITCH, /**< invalid switch body */
|
|
PARSER_ERR_INVALID_BREAK, /**< break must be inside a loop or switch */
|
|
PARSER_ERR_INVALID_BREAK_LABEL, /**< break target not found */
|
|
PARSER_ERR_INVALID_CONTINUE, /**< continue must be inside a loop */
|
|
PARSER_ERR_INVALID_CONTINUE_LABEL, /**< continue target not found */
|
|
PARSER_ERR_INVALID_RETURN, /**< return must be inside a function */
|
|
PARSER_ERR_INVALID_RIGHT_SQUARE, /**< right square must terminate a block */
|
|
PARSER_ERR_DUPLICATED_LABEL, /**< duplicated label */
|
|
PARSER_ERR_OBJECT_PROPERTY_REDEFINED, /**< property of object literal redefined */
|
|
#if ENABLED (JERRY_ES2015)
|
|
PARSER_ERR_VARIABLE_REDECLARED, /**< a variable redeclared */
|
|
#endif /* ENABLED (JERRY_ES2015) */
|
|
|
|
#if ENABLED (JERRY_ES2015)
|
|
PARSER_ERR_MULTIPLE_CLASS_CONSTRUCTORS, /**< multiple class constructor */
|
|
PARSER_ERR_CLASS_CONSTRUCTOR_AS_ACCESSOR, /**< class constructor cannot be an accessor */
|
|
PARSER_ERR_CLASS_STATIC_PROTOTYPE, /**< static method name 'prototype' is not allowed */
|
|
PARSER_ERR_UNEXPECTED_SUPER_REFERENCE, /**< unexpected super keyword */
|
|
|
|
PARSER_ERR_RIGHT_BRACE_EXPECTED, /**< right brace expected */
|
|
PARSER_ERR_OF_EXPECTED, /**< of keyword expected */
|
|
|
|
PARSER_ERR_FORMAL_PARAM_AFTER_REST_PARAMETER, /**< formal parameter after rest parameter */
|
|
PARSER_ERR_REST_PARAMETER_DEFAULT_INITIALIZER, /**< rest parameter default initializer */
|
|
PARSER_ERR_DUPLICATED_ARGUMENT_NAMES, /**< duplicated argument names */
|
|
#endif /* ENABLED (JERRY_ES2015) */
|
|
#if ENABLED (JERRY_ES2015_MODULE_SYSTEM)
|
|
PARSER_ERR_FILE_NOT_FOUND, /**< file not found*/
|
|
PARSER_ERR_FROM_EXPECTED, /**< from expected */
|
|
PARSER_ERR_FROM_COMMA_EXPECTED, /**< from or comma expected */
|
|
PARSER_ERR_AS_EXPECTED, /**< as expected */
|
|
PARSER_ERR_STRING_EXPECTED, /**< string literal expected */
|
|
PARSER_ERR_MODULE_UNEXPECTED, /**< unexpected import or export statement */
|
|
PARSER_ERR_LEFT_BRACE_MULTIPLY_LITERAL_EXPECTED, /**< left brace or multiply or literal expected */
|
|
PARSER_ERR_LEFT_BRACE_MULTIPLY_EXPECTED, /**< left brace or multiply expected */
|
|
PARSER_ERR_RIGHT_BRACE_COMMA_EXPECTED, /**< right brace or comma expected */
|
|
PARSER_ERR_DUPLICATED_EXPORT_IDENTIFIER, /**< duplicated export identifier name */
|
|
PARSER_ERR_DUPLICATED_IMPORT_BINDING, /**< duplicated import binding name */
|
|
#endif /* ENABLED (JERRY_ES2015_MODULE_SYSTEM) */
|
|
|
|
PARSER_ERR_NON_STRICT_ARG_DEFINITION /**< non-strict argument definition */
|
|
} parser_error_t;
|
|
|
|
/**
|
|
* Source code line counter type.
|
|
*/
|
|
typedef uint32_t parser_line_counter_t;
|
|
|
|
/**
|
|
* Error code location.
|
|
*/
|
|
typedef struct
|
|
{
|
|
parser_error_t error; /**< error code */
|
|
parser_line_counter_t line; /**< line where the error occured */
|
|
parser_line_counter_t column; /**< column where the error occured */
|
|
} parser_error_location_t;
|
|
|
|
/* Note: source must be a valid UTF-8 string */
|
|
ecma_value_t parser_parse_script (const uint8_t *arg_list_p, size_t arg_list_size,
|
|
const uint8_t *source_p, size_t source_size,
|
|
uint32_t parse_opts, ecma_compiled_code_t **bytecode_data_p);
|
|
|
|
#if ENABLED (JERRY_ERROR_MESSAGES)
|
|
const char *parser_error_to_string (parser_error_t);
|
|
#endif /* ENABLED (JERRY_ERROR_MESSAGES) */
|
|
|
|
/**
|
|
* @}
|
|
* @}
|
|
* @}
|
|
*/
|
|
|
|
#endif /* !JS_PARSER_H */
|