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https://github.com/jerryscript-project/jerryscript.git
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96edec1a62
Checks for "of" or "from" does not accept quoted strings. JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
152 lines
4.4 KiB
C
152 lines
4.4 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef COMMON_H
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#define COMMON_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include <setjmp.h>
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/** \addtogroup parser Parser
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* @{
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*
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* \addtogroup jsparser JavaScript
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* @{
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*
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* \addtogroup jsparser_utils Utility
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* @{
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*/
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#include "config.h"
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#include "ecma-globals.h"
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#include "ecma-regexp-object.h"
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#include "jmem.h"
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/* Immediate management. */
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/**
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* Literal types.
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*
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* The LEXER_UNUSED_LITERAL type is internal and
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* used for various purposes.
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*/
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typedef enum
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{
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/* The LEXER_IS_IDENT_OR_STRING macro must be updated if the order is changed. */
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LEXER_IDENT_LITERAL = 0, /**< identifier literal */
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LEXER_STRING_LITERAL = 1, /**< string literal */
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LEXER_NUMBER_LITERAL = 2, /**< number literal */
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LEXER_FUNCTION_LITERAL = 3, /**< function literal */
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LEXER_REGEXP_LITERAL = 4, /**< regexp literal */
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LEXER_UNUSED_LITERAL = 5, /**< unused literal, can only be
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used by the byte code generator. */
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} lexer_literal_type_t;
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/**
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* Checks whether the literal type is identifier or string.
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*/
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#define LEXER_IS_IDENT_OR_STRING(literal_type) ((literal_type) <= LEXER_STRING_LITERAL)
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/**
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* Flag bits for status_flags member of lexer_literal_t.
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*/
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typedef enum
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{
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LEXER_FLAG_VAR = (1 << 0), /**< local identifier (var, function arg) */
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LEXER_FLAG_NO_REG_STORE = (1 << 1), /**< this local identifier cannot be stored in register */
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LEXER_FLAG_INITIALIZED = (1 << 2), /**< this local identifier is initialized with a value */
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LEXER_FLAG_FUNCTION_ARGUMENT = (1 << 3), /**< this local identifier is a function argument */
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LEXER_FLAG_UNUSED_IDENT = (1 << 4), /**< this identifier is referenced by sub-functions,
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* but not referenced by the currently parsed function */
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LEXER_FLAG_SOURCE_PTR = (1 << 5), /**< the literal is directly referenced in the source code
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* (no need to allocate memory) */
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LEXER_FLAG_LATE_INIT = (1 << 6), /**< initialize this variable after the byte code is freed */
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} lexer_literal_status_flags_t;
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/**
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* Type of property length.
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*/
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#if ENABLED (JERRY_CPOINTER_32_BIT)
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typedef uint32_t prop_length_t;
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#else /* !ENABLED (JERRY_CPOINTER_32_BIT) */
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typedef uint16_t prop_length_t;
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#endif /* ENABLED (JERRY_CPOINTER_32_BIT) */
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/**
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* Literal data.
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*/
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typedef struct
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{
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union
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{
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ecma_value_t value; /**< literal value (not processed by the parser) */
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const uint8_t *char_p; /**< character value */
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ecma_compiled_code_t *bytecode_p; /**< compiled function or regexp pointer */
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uint32_t source_data; /**< encoded source literal */
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} u;
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#if ENABLED (JERRY_PARSER_DUMP_BYTE_CODE)
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struct
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#else /* !ENABLED (JERRY_PARSER_DUMP_BYTE_CODE) */
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union
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#endif /* ENABLED (JERRY_PARSER_DUMP_BYTE_CODE) */
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{
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prop_length_t length; /**< length of ident / string literal */
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uint16_t index; /**< real index during post processing */
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} prop;
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uint8_t type; /**< type of the literal */
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uint8_t status_flags; /**< status flags */
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} lexer_literal_t;
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void util_free_literal (lexer_literal_t *literal_p);
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#if ENABLED (JERRY_PARSER_DUMP_BYTE_CODE)
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void util_print_literal (lexer_literal_t *);
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#endif /* ENABLED (JERRY_PARSER_DUMP_BYTE_CODE) */
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/* TRY/CATCH block */
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#define PARSER_TRY_CONTEXT(context_name) \
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jmp_buf context_name
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#define PARSER_THROW(context_name) \
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longjmp (context_name, 1);
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#define PARSER_TRY(context_name) \
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{ \
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if (!setjmp (context_name)) \
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{ \
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#define PARSER_CATCH \
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} \
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else \
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{
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#define PARSER_TRY_END \
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} \
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}
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/**
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* @}
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* @}
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* @}
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*/
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#endif /* !COMMON_H */
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