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jerryscript/jerry-core/parser/js/js-parser-internal.h
Robert Fancsik 76b8555210
Remove JERRY_CONTEXT_INVALID_NEW_TARGET (#3643) 
Until now JERRY_CONTEXT_INVALID_NEW_TARGET was used to represent whether the eval called from the script directly.
This information can be retrieved from the parser, so it simplifies the runtime handling of the new.target.

This patch fixes #3630, fixes #3640 and fixes #3641.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
2020-03-27 11:21:50 +01:00

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/* 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_INTERNAL_H
#define JS_PARSER_INTERNAL_H
#include "common.h"
#include "byte-code.h"
#include "debugger.h"
#include "js-parser.h"
#include "js-parser-limits.h"
#include "js-lexer.h"
#include "js-scanner.h"
#include "ecma-module.h"
/** \addtogroup parser Parser
* @{
*
* \addtogroup jsparser JavaScript
* @{
*
* \addtogroup jsparser_internals Internals
* @{
*/
/**
* General parser flags.
*/
typedef enum
{
PARSER_IS_STRICT = (1u << 0), /**< strict mode code */
PARSER_IS_FUNCTION = (1u << 1), /**< function body is parsed */
PARSER_IS_CLOSURE = (1u << 2), /**< function body is encapsulated in {} block */
PARSER_IS_FUNC_EXPRESSION = (1u << 3), /**< a function expression is parsed */
PARSER_IS_PROPERTY_GETTER = (1u << 4), /**< a property getter function is parsed */
PARSER_IS_PROPERTY_SETTER = (1u << 5), /**< a property setter function is parsed */
PARSER_HAS_NON_STRICT_ARG = (1u << 6), /**< the function has arguments which
* are not supported in strict mode */
PARSER_ARGUMENTS_NEEDED = (1u << 7), /**< arguments object must be created */
PARSER_LEXICAL_ENV_NEEDED = (1u << 8), /**< lexical environment object must be created */
PARSER_INSIDE_WITH = (1u << 9), /**< code block is inside a with statement */
PARSER_NO_END_LABEL = (1u << 10), /**< return instruction must be inserted
* after the last byte code */
PARSER_DEBUGGER_BREAKPOINT_APPENDED = (1u << 11), /**< pending (unsent) breakpoint
* info is available */
#if ENABLED (JERRY_ES2015)
PARSER_LEXICAL_BLOCK_NEEDED = (1u << 12), /**< script needs a lexical environment for let and const */
PARSER_IS_ARROW_FUNCTION = (1u << 13), /**< an arrow function is parsed */
PARSER_IS_GENERATOR_FUNCTION = (1u << 14), /**< a generator function is parsed */
PARSER_IS_ASYNC_FUNCTION = (1u << 15), /**< an async function is parsed */
PARSER_DISALLOW_YIELD = (1u << 16), /**< throw SyntaxError for yield expression */
PARSER_FUNCTION_HAS_NON_SIMPLE_PARAM = (1u << 17), /**< function has a non simple parameter */
PARSER_FUNCTION_HAS_REST_PARAM = (1u << 18), /**< function has rest parameter */
/* These 4 status flags must be in this order. See PARSER_SAVED_FLAGS_OFFSET. */
PARSER_CLASS_CONSTRUCTOR = (1u << 19), /**< a class constructor is parsed
* Note: PARSER_ALLOW_SUPER must be present */
PARSER_ALLOW_SUPER = (1u << 20), /**< allow super property access */
PARSER_ALLOW_SUPER_CALL = (1u << 21), /**< allow super constructor call
* Note: PARSER_CLASS_CONSTRUCTOR must be present */
PARSER_ALLOW_NEW_TARGET = (1u << 22), /**< allow new.target parsing in the current context */
#endif /* ENABLED (JERRY_ES2015) */
#if ENABLED (JERRY_ES2015_MODULE_SYSTEM)
PARSER_MODULE_DEFAULT_CLASS_OR_FUNC = (1u << 23), /**< parsing a function or class default export */
PARSER_MODULE_STORE_IDENT = (1u << 24), /**< store identifier of the current export statement */
#endif /* ENABLED (JERRY_ES2015_MODULE_SYSTEM) */
PARSER_HAS_LATE_LIT_INIT = (1u << 30), /**< there are identifier or string literals which construction
* is postponed after the local parser data is freed */
#ifndef JERRY_NDEBUG
PARSER_SCANNING_SUCCESSFUL = PARSER_HAS_LATE_LIT_INIT, /**< scanning process was successful */
#endif /* !JERRY_NDEBUG */
} parser_general_flags_t;
/**
* Expression parsing flags.
*/
typedef enum
{
PARSE_EXPR = 0, /**< parse an expression without any special flags */
PARSE_EXPR_LEFT_HAND_SIDE = (1u << 0), /**< parse a left-hand-side expression */
PARSE_EXPR_NO_PUSH_RESULT = (1u << 1), /**< do not push the result of the expression onto the stack */
PARSE_EXPR_NO_COMMA = (1u << 2), /**< do not parse comma operator */
PARSE_EXPR_HAS_LITERAL = (1u << 3), /**< a primary literal is provided by a
* CBC_PUSH_LITERAL instruction */
} parser_expression_flags_t;
/**
* Pattern parsing flags.
*/
typedef enum
{
PARSER_PATTERN_NO_OPTS = 0, /**< parse the expression after '=' */
PARSER_PATTERN_BINDING = (1u << 0), /**< parse BindingPattern */
PARSER_PATTERN_TARGET_ON_STACK = (1u << 1), /**< assignment target is the topmost element on the stack */
PARSER_PATTERN_TARGET_DEFAULT = (1u << 2), /**< perform default value comparison for assignment target */
PARSER_PATTERN_NESTED_PATTERN = (1u << 3), /**< parse patter inside a pattern */
PARSER_PATTERN_LEXICAL = (1u << 4), /**< pattern is a lexical (let/const) declaration */
PARSER_PATTERN_LOCAL = (1u << 5), /**< pattern is a local (catch parameter) declaration */
PARSER_PATTERN_REST_ELEMENT = (1u << 6), /**< parse rest array initializer */
PARSER_PATTERN_ARGUMENTS = (1u << 7), /**< parse arguments binding */
} parser_pattern_flags_t;
/**
* Mask for strict mode code
*/
#define PARSER_STRICT_MODE_MASK 0x1
/**
* Shorthand for function closure definition
*/
#define PARSER_FUNCTION_CLOSURE (PARSER_IS_FUNCTION | PARSER_IS_CLOSURE)
#if ENABLED (JERRY_ES2015)
/**
* Offset between PARSER_CLASS_CONSTRUCTOR and ECMA_PARSE_CLASS_CONSTRUCTOR
*/
#define PARSER_SAVED_FLAGS_OFFSET \
(JERRY_LOG2 (PARSER_CLASS_CONSTRUCTOR) - JERRY_LOG2 (ECMA_PARSE_CLASS_CONSTRUCTOR))
/**
* Count of ecma_parse_opts_t class parsing options related bits
*/
#define PARSER_SAVED_FLAGS_COUNT \
(JERRY_LOG2 (ECMA_PARSE_ALLOW_NEW_TARGET) - JERRY_LOG2 (ECMA_PARSE_CLASS_CONSTRUCTOR) + 1)
/**
* Mask for get class option bits from ecma_parse_opts_t
*/
#define PARSER_CLASS_ECMA_PARSE_OPTS_TO_PARSER_OPTS_MASK \
(((1 << PARSER_SAVED_FLAGS_COUNT) - 1) << JERRY_LOG2 (ECMA_PARSE_CLASS_CONSTRUCTOR))
/**
* Get class option bits from ecma_parse_opts_t
*/
#define PARSER_GET_SAVED_FLAGS(opts) \
(((opts) & PARSER_CLASS_ECMA_PARSE_OPTS_TO_PARSER_OPTS_MASK) << PARSER_SAVED_FLAGS_OFFSET)
/**
* Get class option bits from parser_general_flags_t
*/
#define PARSER_SAVE_STATUS_FLAGS(opts) \
((uint16_t) (((opts) >> PARSER_SAVED_FLAGS_OFFSET) & PARSER_CLASS_ECMA_PARSE_OPTS_TO_PARSER_OPTS_MASK))
/* All flags that affect exotic arguments object creation. */
#define PARSER_ARGUMENTS_RELATED_FLAGS \
(PARSER_ARGUMENTS_NEEDED | PARSER_FUNCTION_HAS_NON_SIMPLE_PARAM | PARSER_IS_STRICT)
#else /* !ENABLED (JERRY_ES2015) */
/* All flags that affect exotic arguments object creation. */
#define PARSER_ARGUMENTS_RELATED_FLAGS \
(PARSER_ARGUMENTS_NEEDED | PARSER_IS_STRICT)
#endif /* ENABLED (JERRY_ES2015) */
/* Checks whether unmapped arguments are needed. */
#define PARSER_NEEDS_MAPPED_ARGUMENTS(status_flags) \
(((status_flags) & PARSER_ARGUMENTS_RELATED_FLAGS) == PARSER_ARGUMENTS_NEEDED)
/* The maximum of PARSER_CBC_STREAM_PAGE_SIZE is 127. */
#define PARSER_CBC_STREAM_PAGE_SIZE \
((uint32_t) (64 - sizeof (void *)))
/* Defines the size of the max page. */
#define PARSER_STACK_PAGE_SIZE \
((uint32_t) (((sizeof (void *) > 4) ? 128 : 64) - sizeof (void *)))
/* Avoid compiler warnings for += operations. */
#define PARSER_PLUS_EQUAL_U16(base, value) (base) = (uint16_t) ((base) + (value))
#define PARSER_MINUS_EQUAL_U16(base, value) (base) = (uint16_t) ((base) - (value))
#define PARSER_PLUS_EQUAL_LC(base, value) (base) = (parser_line_counter_t) ((base) + (value))
/**
* Argument for a compact-byte code.
*/
typedef struct
{
uint16_t literal_index; /**< literal index argument */
uint16_t value; /**< other argument (second literal or byte). */
uint16_t third_literal_index; /**< literal index argument */
uint8_t literal_type; /**< last literal type */
uint8_t literal_keyword_type; /**< last literal keyword type */
} cbc_argument_t;
/* Useful parser macros. */
#define PARSER_CBC_UNAVAILABLE CBC_EXT_OPCODE
#define PARSER_TO_EXT_OPCODE(opcode) ((uint16_t) ((opcode) + 256))
#define PARSER_GET_EXT_OPCODE(opcode) ((opcode) - 256)
#define PARSER_IS_BASIC_OPCODE(opcode) ((opcode) < 256)
#define PARSER_IS_PUSH_LITERAL(opcode) \
((opcode) == CBC_PUSH_LITERAL \
|| (opcode) == CBC_PUSH_TWO_LITERALS \
|| (opcode) == CBC_PUSH_THREE_LITERALS)
#define PARSER_IS_PUSH_NUMBER(opcode) \
((opcode) == CBC_PUSH_NUMBER_0 \
|| (opcode) == CBC_PUSH_NUMBER_POS_BYTE \
|| (opcode) == CBC_PUSH_NUMBER_NEG_BYTE \
|| (opcode) == PARSER_TO_EXT_OPCODE (CBC_EXT_PUSH_LITERAL_PUSH_NUMBER_0) \
|| (opcode) == PARSER_TO_EXT_OPCODE (CBC_EXT_PUSH_LITERAL_PUSH_NUMBER_POS_BYTE) \
|| (opcode) == PARSER_TO_EXT_OPCODE (CBC_EXT_PUSH_LITERAL_PUSH_NUMBER_NEG_BYTE))
#define PARSER_IS_MUTABLE_PUSH_LITERAL(opcode) \
((opcode) >= CBC_PUSH_LITERAL && (opcode) <= CBC_PUSH_THIS_LITERAL)
#define PARSER_IS_PUSH_LITERALS_WITH_THIS(opcode) \
((opcode) >= CBC_PUSH_LITERAL && (opcode) <= CBC_PUSH_THREE_LITERALS)
#define PARSER_IS_PUSH_PROP(opcode) \
((opcode) >= CBC_PUSH_PROP && (opcode) <= CBC_PUSH_PROP_THIS_LITERAL)
#define PARSER_IS_PUSH_PROP_LITERAL(opcode) \
((opcode) >= CBC_PUSH_PROP_LITERAL && (opcode) <= CBC_PUSH_PROP_THIS_LITERAL)
#define PARSER_PUSH_LITERAL_TO_PUSH_PROP_LITERAL(opcode) \
(uint16_t) ((opcode) + (CBC_PUSH_PROP_LITERAL - CBC_PUSH_LITERAL))
#define PARSER_PUSH_PROP_LITERAL_TO_PUSH_LITERAL(opcode) \
(uint16_t) ((opcode) - (CBC_PUSH_PROP_LITERAL - CBC_PUSH_LITERAL))
#define PARSER_PUSH_PROP_TO_PUSH_PROP_REFERENCE(opcode) \
(uint16_t) ((opcode) + (CBC_PUSH_PROP_REFERENCE - CBC_PUSH_PROP))
#define PARSER_PUSH_PROP_REFERENCE_TO_PUSH_PROP(opcode) \
(uint16_t) ((opcode) - (CBC_PUSH_PROP_REFERENCE - CBC_PUSH_PROP))
#define PARSER_GET_LITERAL(literal_index) \
((lexer_literal_t *) parser_list_get (&context_p->literal_pool, (literal_index)))
#define PARSER_TO_BINARY_OPERATION_WITH_RESULT(opcode) \
(PARSER_TO_EXT_OPCODE(opcode) - CBC_ASSIGN_ADD + CBC_EXT_ASSIGN_ADD_PUSH_RESULT)
#define PARSER_TO_BINARY_OPERATION_WITH_BLOCK(opcode) \
((uint16_t) (PARSER_TO_EXT_OPCODE(opcode) - CBC_ASSIGN_ADD + CBC_EXT_ASSIGN_ADD_BLOCK))
#define PARSER_GET_FLAGS(op) \
(PARSER_IS_BASIC_OPCODE (op) ? cbc_flags[(op)] : cbc_ext_flags[PARSER_GET_EXT_OPCODE (op)])
#define PARSER_OPCODE_IS_RETURN(op) \
((op) == CBC_RETURN || (op) == CBC_RETURN_WITH_BLOCK || (op) == CBC_RETURN_WITH_LITERAL)
#define PARSER_ARGS_EQ(op, types) \
((PARSER_GET_FLAGS (op) & CBC_ARG_TYPES) == (types))
/**
* All data allocated by the parser is
* stored in parser_data_pages in the memory.
*/
typedef struct parser_mem_page_t
{
struct parser_mem_page_t *next_p; /**< next page */
uint8_t bytes[1]; /**< memory bytes */
} parser_mem_page_t;
/**
* Structure for managing parser memory.
*/
typedef struct
{
parser_mem_page_t *first_p; /**< first allocated page */
parser_mem_page_t *last_p; /**< last allocated page */
uint32_t last_position; /**< position of the last allocated byte */
} parser_mem_data_t;
/**
* Parser memory list.
*/
typedef struct
{
parser_mem_data_t data; /**< storage space */
uint32_t page_size; /**< size of each page */
uint32_t item_size; /**< size of each item */
uint32_t item_count; /**< number of items on each page */
} parser_list_t;
/**
* Iterator for parser memory list.
*/
typedef struct
{
parser_list_t *list_p; /**< parser list */
parser_mem_page_t *current_p; /**< currently processed page */
size_t current_position; /**< current position on the page */
} parser_list_iterator_t;
/**
* Parser memory stack.
*/
typedef struct
{
parser_mem_data_t data; /**< storage space */
parser_mem_page_t *free_page_p; /**< space for fast allocation */
} parser_stack_t;
/**
* Iterator for parser memory stack.
*/
typedef struct
{
parser_mem_page_t *current_p; /**< currently processed page */
size_t current_position; /**< current position on the page */
} parser_stack_iterator_t;
/**
* Branch type.
*/
typedef struct
{
parser_mem_page_t *page_p; /**< branch location page */
uint32_t offset; /**< branch location offset */
} parser_branch_t;
/**
* Branch chain type.
*/
typedef struct parser_branch_node_t
{
struct parser_branch_node_t *next_p; /**< next linked list node */
parser_branch_t branch; /**< branch */
} parser_branch_node_t;
/**
* Items of scope stack.
*/
typedef struct
{
uint16_t map_from; /**< original literal index */
uint16_t map_to; /**< encoded register or literal index and flags */
} parser_scope_stack_t;
/**
* This item represents a function literal in the scope stack.
*
* When map_from == PARSER_SCOPE_STACK_FUNC:
* map_to represents the literal reserved for a function literal
* Note: the name of the function is the previous value in the scope stack
* Note: map_to is not encoded in this case
*/
#define PARSER_SCOPE_STACK_FUNC 0xffff
#if ENABLED (JERRY_ES2015)
/**
* Mask for decoding the register index of map_to
*/
#define PARSER_SCOPE_STACK_REGISTER_MASK 0x3fff
/**
* The scope stack item represents a lexical declaration (let/const)
*/
#define PARSER_SCOPE_STACK_IS_LEXICAL 0x4000
/**
* The scope stack item represents a const declaration
*/
#define PARSER_SCOPE_STACK_IS_CONST 0x8000
#endif /* ENABLED (JERRY_ES2015) */
/**
* Starting literal index for registers.
*/
#define PARSER_REGISTER_START 0x8000
/* Forward definitions for js-scanner-internal.h. */
struct scanner_context_t;
typedef struct scanner_context_t scanner_context_t;
#if ENABLED (JERRY_DEBUGGER)
/**
* Extra information for each breakpoint.
*/
typedef struct
{
uint32_t value; /**< line or offset of the breakpoint */
} parser_breakpoint_info_t;
/**
* Maximum number of breakpoint info.
*/
#define PARSER_MAX_BREAKPOINT_INFO_COUNT \
(JERRY_DEBUGGER_TRANSPORT_MAX_BUFFER_SIZE / sizeof (parser_breakpoint_info_t))
#endif /* ENABLED (JERRY_DEBUGGER) */
/**
* Those members of a context which needs
* to be saved when a sub-function is parsed.
*/
typedef struct parser_saved_context_t
{
/* Parser members. */
uint32_t status_flags; /**< parsing options */
uint16_t stack_depth; /**< current stack depth */
uint16_t stack_limit; /**< maximum stack depth */
struct parser_saved_context_t *prev_context_p; /**< last saved context */
parser_stack_iterator_t last_statement; /**< last statement position */
/* Literal types */
uint16_t argument_count; /**< number of function arguments */
uint16_t register_count; /**< number of registers */
uint16_t literal_count; /**< number of literals */
/* Memory storage members. */
parser_mem_data_t byte_code; /**< byte code buffer */
uint32_t byte_code_size; /**< byte code size for branches */
parser_mem_data_t literal_pool_data; /**< literal list */
parser_scope_stack_t *scope_stack_p; /**< scope stack */
uint16_t scope_stack_size; /**< size of scope stack */
uint16_t scope_stack_top; /**< preserved top of scope stack */
uint16_t scope_stack_reg_top; /**< preserved top register of scope stack */
#if ENABLED (JERRY_ES2015)
uint16_t scope_stack_global_end; /**< end of global declarations of a function */
ecma_value_t tagged_template_literal_cp; /**< compessed pointer to the tagged template literal collection */
#endif /* ENABLED (JERRY_ES2015) */
#ifndef JERRY_NDEBUG
uint16_t context_stack_depth; /**< current context stack depth */
#endif /* !JERRY_NDEBUG */
} parser_saved_context_t;
/**
* Shared parser context.
*/
typedef struct
{
PARSER_TRY_CONTEXT (try_buffer); /**< try_buffer */
parser_error_t error; /**< error code */
/** Union for rarely used members. */
union
{
void *allocated_buffer_p; /**< dinamically allocated buffer
* which needs to be freed on error */
scanner_context_t *scanner_context_p; /**< scanner context for the pre-scanner */
} u;
uint32_t allocated_buffer_size; /**< size of the dinamically allocated buffer */
/* Parser members. */
uint32_t status_flags; /**< status flags */
uint32_t global_status_flags; /**< global status flags */
uint16_t stack_depth; /**< current stack depth */
uint16_t stack_limit; /**< maximum stack depth */
parser_saved_context_t *last_context_p; /**< last saved context */
parser_stack_iterator_t last_statement; /**< last statement position */
#if ENABLED (JERRY_ES2015_MODULE_SYSTEM)
ecma_module_node_t *module_current_node_p; /**< import / export node that is being processed */
lexer_literal_t *module_identifier_lit_p; /**< the literal for the identifier of the current element */
#endif /* ENABLED (JERRY_ES2015_MODULE_SYSTEM) */
/* Lexer members. */
lexer_token_t token; /**< current token */
lexer_lit_object_t lit_object; /**< current literal object */
const uint8_t *source_p; /**< next source byte */
const uint8_t *source_end_p; /**< last source byte */
parser_line_counter_t line; /**< current line */
parser_line_counter_t column; /**< current column */
/* Scanner members. */
scanner_info_t *next_scanner_info_p; /**< next scanner info block */
scanner_info_t *active_scanner_info_p; /**< currently active scanner info block */
scanner_info_t *skipped_scanner_info_p; /**< next scanner info block */
scanner_info_t *skipped_scanner_info_end_p; /**< currently active scanner info block */
/* Compact byte code members. */
cbc_argument_t last_cbc; /**< argument of the last cbc */
uint16_t last_cbc_opcode; /**< opcode of the last cbc */
/* Literal types */
uint16_t argument_count; /**< number of function arguments */
uint16_t register_count; /**< number of registers */
uint16_t literal_count; /**< number of literals */
/* Memory storage members. */
parser_mem_data_t byte_code; /**< byte code buffer */
uint32_t byte_code_size; /**< current byte code size for branches */
parser_list_t literal_pool; /**< literal list */
parser_mem_data_t stack; /**< storage space */
parser_scope_stack_t *scope_stack_p; /**< scope stack */
parser_mem_page_t *free_page_p; /**< space for fast allocation */
uint16_t scope_stack_size; /**< size of scope stack */
uint16_t scope_stack_top; /**< current top of scope stack */
uint16_t scope_stack_reg_top; /**< current top register of scope stack */
#if ENABLED (JERRY_ES2015)
uint16_t scope_stack_global_end; /**< end of global declarations of a function */
ecma_value_t tagged_template_literal_cp; /**< compessed pointer to the tagged template literal collection */
#endif /* ENABLED (JERRY_ES2015) */
uint8_t stack_top_uint8; /**< top byte stored on the stack */
#ifndef JERRY_NDEBUG
/* Variables for debugging / logging. */
uint16_t context_stack_depth; /**< current context stack depth */
#endif /* !JERRY_NDEBUG */
#if ENABLED (JERRY_PARSER_DUMP_BYTE_CODE)
int is_show_opcodes; /**< show opcodes */
uint32_t total_byte_code_size; /**< total byte code size */
#endif /* ENABLED (JERRY_PARSER_DUMP_BYTE_CODE) */
#if ENABLED (JERRY_DEBUGGER)
parser_breakpoint_info_t breakpoint_info[PARSER_MAX_BREAKPOINT_INFO_COUNT]; /**< breakpoint info list */
uint16_t breakpoint_info_count; /**< current breakpoint index */
parser_line_counter_t last_breakpoint_line; /**< last line where breakpoint has been inserted */
#endif /* ENABLED (JERRY_DEBUGGER) */
#if ENABLED (JERRY_LINE_INFO)
parser_line_counter_t last_line_info_line; /**< last line where line info has been inserted */
#endif /* ENABLED (JERRY_LINE_INFO) */
} parser_context_t;
/**
* @}
* @}
* @}
*
* \addtogroup mem Memory allocation
* @{
*
* \addtogroup mem_parser Parser memory manager
* @{
*/
/* Memory management.
* Note: throws an error if unsuccessful. */
void *parser_malloc (parser_context_t *context_p, size_t size);
void parser_free (void *ptr, size_t size);
void *parser_malloc_local (parser_context_t *context_p, size_t size);
void parser_free_local (void *ptr, size_t size);
void parser_free_allocated_buffer (parser_context_t *context_p);
/* Parser byte stream. */
void parser_cbc_stream_init (parser_mem_data_t *data_p);
void parser_cbc_stream_free (parser_mem_data_t *data_p);
void parser_cbc_stream_alloc_page (parser_context_t *context_p, parser_mem_data_t *data_p);
/* Parser list. Ensures pointer alignment. */
void parser_list_init (parser_list_t *list_p, uint32_t item_size, uint32_t item_count);
void parser_list_free (parser_list_t *list_p);
void parser_list_reset (parser_list_t *list_p);
void *parser_list_append (parser_context_t *context_p, parser_list_t *list_p);
void *parser_list_get (parser_list_t *list_p, size_t index);
void parser_list_iterator_init (parser_list_t *list_p, parser_list_iterator_t *iterator_p);
void *parser_list_iterator_next (parser_list_iterator_t *iterator_p);
/* Parser stack. Optimized for pushing bytes.
* Pop functions never throws error. */
void parser_stack_init (parser_context_t *context_p);
void parser_stack_free (parser_context_t *context_p);
void parser_stack_push_uint8 (parser_context_t *context_p, uint8_t uint8_value);
void parser_stack_pop_uint8 (parser_context_t *context_p);
void parser_stack_push_uint16 (parser_context_t *context_p, uint16_t uint16_value);
uint16_t parser_stack_pop_uint16 (parser_context_t *context_p);
void parser_stack_push (parser_context_t *context_p, const void *data_p, uint32_t length);
void parser_stack_pop (parser_context_t *context_p, void *data_p, uint32_t length);
void parser_stack_iterator_skip (parser_stack_iterator_t *iterator, size_t length);
void parser_stack_iterator_read (parser_stack_iterator_t *iterator, void *data_p, size_t length);
void parser_stack_iterator_write (parser_stack_iterator_t *iterator, const void *data_p, size_t length);
/**
* @}
* @}
*
* \addtogroup parser Parser
* @{
*
* \addtogroup jsparser JavaScript
* @{
*
* \addtogroup jsparser_utils Utility
* @{
*/
/* Compact byte code emitting functions. */
void parser_flush_cbc (parser_context_t *context_p);
void parser_emit_cbc (parser_context_t *context_p, uint16_t opcode);
void parser_emit_cbc_literal (parser_context_t *context_p, uint16_t opcode, uint16_t literal_index);
void parser_emit_cbc_literal_value (parser_context_t *context_p, uint16_t opcode, uint16_t literal_index,
uint16_t value);
void parser_emit_cbc_literal_from_token (parser_context_t *context_p, uint16_t opcode);
void parser_emit_cbc_call (parser_context_t *context_p, uint16_t opcode, size_t call_arguments);
void parser_emit_cbc_push_number (parser_context_t *context_p, bool is_negative_number);
void parser_emit_cbc_forward_branch (parser_context_t *context_p, uint16_t opcode, parser_branch_t *branch_p);
parser_branch_node_t *parser_emit_cbc_forward_branch_item (parser_context_t *context_p, uint16_t opcode,
parser_branch_node_t *next_p);
void parser_emit_cbc_backward_branch (parser_context_t *context_p, uint16_t opcode, uint32_t offset);
void parser_set_branch_to_current_position (parser_context_t *context_p, parser_branch_t *branch_p);
void parser_set_breaks_to_current_position (parser_context_t *context_p, parser_branch_node_t *current_p);
void parser_set_continues_to_current_position (parser_context_t *context_p, parser_branch_node_t *current_p);
/* Convenience macros. */
#define parser_emit_cbc_ext(context_p, opcode) \
parser_emit_cbc ((context_p), PARSER_TO_EXT_OPCODE (opcode))
#define parser_emit_cbc_ext_literal(context_p, opcode, literal_index) \
parser_emit_cbc_literal ((context_p), PARSER_TO_EXT_OPCODE (opcode), (literal_index))
#define parser_emit_cbc_ext_literal_from_token(context_p, opcode) \
parser_emit_cbc_literal_from_token ((context_p), PARSER_TO_EXT_OPCODE (opcode))
#define parser_emit_cbc_ext_call(context_p, opcode, call_arguments) \
parser_emit_cbc_call ((context_p), PARSER_TO_EXT_OPCODE (opcode), (call_arguments))
#define parser_emit_cbc_ext_call(context_p, opcode, call_arguments) \
parser_emit_cbc_call ((context_p), PARSER_TO_EXT_OPCODE (opcode), (call_arguments))
#define parser_emit_cbc_ext_forward_branch(context_p, opcode, branch_p) \
parser_emit_cbc_forward_branch ((context_p), PARSER_TO_EXT_OPCODE (opcode), (branch_p))
#define parser_emit_cbc_ext_backward_branch(context_p, opcode, offset) \
parser_emit_cbc_backward_branch ((context_p), PARSER_TO_EXT_OPCODE (opcode), (offset))
/**
* @}
*
* \addtogroup jsparser_lexer Lexer
* @{
*/
/* Lexer functions */
void lexer_next_token (parser_context_t *context_p);
bool lexer_check_next_character (parser_context_t *context_p, lit_utf8_byte_t character);
bool lexer_check_next_characters (parser_context_t *context_p, lit_utf8_byte_t character1,
lit_utf8_byte_t character2);
uint8_t lexer_consume_next_character (parser_context_t *context_p);
#if ENABLED (JERRY_ES2015)
void lexer_skip_empty_statements (parser_context_t *context_p);
bool lexer_check_arrow (parser_context_t *context_p);
bool lexer_check_arrow_param (parser_context_t *context_p);
bool lexer_check_yield_no_arg (parser_context_t *context_p);
bool lexer_consume_generator (parser_context_t *context_p);
#endif /* ENABLED (JERRY_ES2015) */
void lexer_parse_string (parser_context_t *context_p, lexer_string_options_t opts);
void lexer_expect_identifier (parser_context_t *context_p, uint8_t literal_type);
bool lexer_scan_identifier (parser_context_t *context_p);
void lexer_check_property_modifier (parser_context_t *context_p);
void lexer_convert_ident_to_cesu8 (uint8_t *destination_p, const uint8_t *source_p, prop_length_t length);
const uint8_t *lexer_convert_literal_to_chars (parser_context_t *context_p, const lexer_lit_location_t *literal_p,
uint8_t *local_byte_array_p, lexer_string_options_t opts);
void lexer_expect_object_literal_id (parser_context_t *context_p, uint32_t ident_opts);
void lexer_construct_literal_object (parser_context_t *context_p, const lexer_lit_location_t *lit_location_p,
uint8_t literal_type);
bool lexer_construct_number_object (parser_context_t *context_p, bool is_expr, bool is_negative_number);
void lexer_convert_push_number_to_push_literal (parser_context_t *context_p);
uint16_t lexer_construct_function_object (parser_context_t *context_p, uint32_t extra_status_flags);
void lexer_construct_regexp_object (parser_context_t *context_p, bool parse_only);
bool lexer_compare_identifier_to_string (const lexer_lit_location_t *left_p, const uint8_t *right_p, size_t size);
bool lexer_compare_identifiers (parser_context_t *context_p, const lexer_lit_location_t *left_p,
const lexer_lit_location_t *right_p);
bool lexer_current_is_literal (parser_context_t *context_p, const lexer_lit_location_t *right_ident_p);
bool lexer_string_is_use_strict (parser_context_t *context_p);
bool lexer_string_is_directive (parser_context_t *context_p);
#if ENABLED (JERRY_ES2015)
bool lexer_token_is_identifier (parser_context_t *context_p, const char *identifier_p,
size_t identifier_length);
bool lexer_token_is_let (parser_context_t *context_p);
bool lexer_token_is_async (parser_context_t *context_p);
#endif /* ENABLED (JERRY_ES2015) */
bool lexer_compare_literal_to_string (parser_context_t *context_p, const char *string_p, size_t string_length);
uint8_t lexer_convert_binary_lvalue_token_to_binary (uint8_t token);
/**
* @}
*
* \addtogroup jsparser_expr Expression parser
* @{
*/
/* Parser functions. */
void parser_parse_block_expression (parser_context_t *context_p, int options);
void parser_parse_expression_statement (parser_context_t *context_p, int options);
void parser_parse_expression (parser_context_t *context_p, int options);
#if ENABLED (JERRY_ES2015)
void parser_parse_class (parser_context_t *context_p, bool is_statement);
void parser_parse_initializer (parser_context_t *context_p, parser_pattern_flags_t flags);
void parser_parse_initializer_by_next_char (parser_context_t *context_p, parser_pattern_flags_t flags);
#endif /* ENABLED (JERRY_ES2015) */
/**
* @}
*
* \addtogroup jsparser_scanner Scanner
* @{
*/
void scanner_release_next (parser_context_t *context_p, size_t size);
void scanner_set_active (parser_context_t *context_p);
void scanner_revert_active (parser_context_t *context_p);
void scanner_release_active (parser_context_t *context_p, size_t size);
void scanner_release_switch_cases (scanner_case_info_t *case_p);
void scanner_seek (parser_context_t *context_p);
void scanner_reverse_info_list (parser_context_t *context_p);
void scanner_cleanup (parser_context_t *context_p);
bool scanner_is_context_needed (parser_context_t *context_p);
#if ENABLED (JERRY_ES2015)
bool scanner_is_global_context_needed (parser_context_t *context_p);
bool scanner_scope_find_let_declaration (parser_context_t *context_p, lexer_lit_location_t *literal_p);
bool scanner_try_scan_new_target (parser_context_t *context_p);
void scanner_check_variables (parser_context_t *context_p);
#endif /* ENABLED (JERRY_ES2015) */
void scanner_create_variables (parser_context_t *context_p, uint32_t option_flags);
void scanner_get_location (scanner_location_t *location_p, parser_context_t *context_p);
void scanner_set_location (parser_context_t *context_p, scanner_location_t *location_p);
uint16_t scanner_decode_map_to (parser_scope_stack_t *stack_item_p);
void scanner_scan_all (parser_context_t *context_p, const uint8_t *arg_list_p, const uint8_t *arg_list_end_p,
const uint8_t *source_p, const uint8_t *source_end_p);
/**
* @}
*
* \addtogroup jsparser_stmt Statement parser
* @{
*/
void parser_parse_statements (parser_context_t *context_p);
void parser_free_jumps (parser_stack_iterator_t iterator);
#if ENABLED (JERRY_ES2015_MODULE_SYSTEM)
/**
* @}
*
* \addtogroup jsparser_stmt Module statement parser
* @{
*/
extern const lexer_lit_location_t lexer_default_literal;
void parser_module_add_export_node_to_context (parser_context_t *context_p);
void parser_module_add_import_node_to_context (parser_context_t *context_p);
void parser_module_check_request_place (parser_context_t *context_p);
void parser_module_context_init (void);
void parser_module_handle_module_specifier (parser_context_t *context_p);
void parser_module_handle_requests (parser_context_t *context_p);
void parser_module_parse_export_clause (parser_context_t *context_p);
void parser_module_parse_import_clause (parser_context_t *context_p);
void parser_module_set_default (parser_context_t *context_p);
ecma_module_node_t *parser_module_create_module_node (parser_context_t *context_p);
bool parser_module_check_duplicate_import (parser_context_t *context_p, ecma_string_t *local_name_p);
bool parser_module_check_duplicate_export (parser_context_t *context_p, ecma_string_t *export_name_p);
void parser_module_append_export_name (parser_context_t *context_p);
void parser_module_add_names_to_node (parser_context_t *context_p,
ecma_string_t *imex_name_p,
ecma_string_t *local_name_p);
#endif /* ENABLED (JERRY_ES2015_MODULE_SYSTEM) */
/**
* @}
*
* \addtogroup jsparser_parser Parser
* @{
*/
ecma_compiled_code_t *parser_parse_function (parser_context_t *context_p, uint32_t status_flags);
#if ENABLED (JERRY_ES2015)
ecma_compiled_code_t *parser_parse_arrow_function (parser_context_t *context_p, uint32_t status_flags);
#endif /* ENABLED (JERRY_ES2015) */
/* Error management. */
void parser_raise_error (parser_context_t *context_p, parser_error_t error);
/* Debug functions. */
#if ENABLED (JERRY_DEBUGGER)
void parser_append_breakpoint_info (parser_context_t *context_p, jerry_debugger_header_type_t type, uint32_t value);
#endif /* ENABLED (JERRY_DEBUGGER) */
#if ENABLED (JERRY_LINE_INFO)
void parser_emit_line_info (parser_context_t *context_p, uint32_t line, bool flush_cbc);
#endif /* ENABLED (JERRY_LINE_INFO) */
/**
* @}
* @}
* @}
*/
#endif /* !JS_PARSER_INTERNAL_H */
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