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Scanner rework. (#3038)

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The scanner was an on-demand tool of the parser, which was triggered by certain
statements. After the rework, the scanner runs only once, and collects all information.
This information is passed to the parser.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-09-11 11:15:46 +02:00
committed by Dániel Bátyai
parent 6221b670d1
commit fbde788d1f
24 changed files with 2511 additions and 1471 deletions
Download Patch File Download Diff File Expand all files Collapse all files
jerry-core/parser/js/js-parser-internal.h
+23 -3
View File
@@ -23,6 +23,7 @@
#include "js-parser.h"
#include "js-parser-limits.h"
#include "js-lexer.h"
#include "js-scanner.h"
#include "ecma-module.h"
@@ -362,6 +363,10 @@ typedef struct
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 */
/* Compact byte code members. */
cbc_argument_t last_cbc; /**< argument of the last cbc */
uint16_t last_cbc_opcode; /**< opcode of the last cbc */
@@ -507,11 +512,11 @@ bool lexer_check_next_character (parser_context_t *context_p, lit_utf8_byte_t ch
void lexer_skip_empty_statements (parser_context_t *context_p);
#endif /* ENABLED (JERRY_ES2015_CLASS) */
#if ENABLED (JERRY_ES2015_ARROW_FUNCTION)
lexer_token_type_t lexer_check_arrow (parser_context_t *context_p);
bool lexer_check_arrow (parser_context_t *context_p);
#endif /* ENABLED (JERRY_ES2015_ARROW_FUNCTION) */
void lexer_parse_string (parser_context_t *context_p);
void lexer_expect_identifier (parser_context_t *context_p, uint8_t literal_type);
void lexer_scan_identifier (parser_context_t *context_p, bool property_name);
void lexer_scan_identifier (parser_context_t *context_p, uint32_t ident_opts);
ecma_char_t lexer_hex_to_character (parser_context_t *context_p, const uint8_t *source_p, int length);
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, lexer_lit_location_t *literal_p,
@@ -549,7 +554,22 @@ void parser_parse_super_class_context_end (parser_context_t *context_p, bool is_
* @{
*/
void parser_scan_until (parser_context_t *context_p, lexer_range_t *range_p, lexer_token_type_t end_type);
void scanner_raise_error (parser_context_t *context_p);
void *scanner_malloc (parser_context_t *context_p, size_t size);
void scanner_free (void *ptr, size_t size);
scanner_info_t *scanner_insert_info (parser_context_t *context_p, const uint8_t *source_p, size_t size);
void scanner_release_next (parser_context_t *context_p, size_t size);
void scanner_set_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_reverse_info_list (parser_context_t *context_p);
void scanner_cleanup (parser_context_t *context_p);
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);
void scanner_scan_all (parser_context_t *context_p);
/**
* @}