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Implement arrow function parsing. (#2022)

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Note: the special this behaviour of arrow functions is not implemented.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2017-09-26 10:40:45 +02:00
committed by Dániel Bátyai
parent 81952f3cd0
commit c6a33dd407
11 changed files with 777 additions and 194 deletions
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jerry-core/parser/js/js-parser-internal.h
+29 -18
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@@ -35,24 +35,28 @@
*/
/* General parser flags. */
#define PARSER_IS_STRICT 0x00001u
#define PARSER_IS_FUNCTION 0x00002u
#define PARSER_IS_CLOSURE 0x00004u
#define PARSER_IS_PROPERTY_GETTER 0x00008u
#define PARSER_IS_PROPERTY_SETTER 0x00010u
#define PARSER_IS_FUNC_EXPRESSION 0x00020u
#define PARSER_HAS_NON_STRICT_ARG 0x00040u
#define PARSER_INSIDE_WITH 0x00080u
#define PARSER_RESOLVE_THIS_FOR_CALLS 0x00100u
#define PARSER_NAMED_FUNCTION_EXP 0x00200u
#define PARSER_HAS_INITIALIZED_VARS 0x00400u
#define PARSER_NO_END_LABEL 0x00800u
#define PARSER_NO_REG_STORE 0x01000u
#define PARSER_ARGUMENTS_NEEDED 0x02000u
#define PARSER_ARGUMENTS_NOT_NEEDED 0x04000u
#define PARSER_LEXICAL_ENV_NEEDED 0x08000u
#define PARSER_HAS_LATE_LIT_INIT 0x10000u
#define PARSER_DEBUGGER_BREAKPOINT_APPENDED 0x20000u
#define PARSER_IS_STRICT 0x00000001u
#define PARSER_IS_FUNCTION 0x00000002u
#define PARSER_IS_CLOSURE 0x00000004u
#define PARSER_IS_PROPERTY_GETTER 0x00000008u
#define PARSER_IS_PROPERTY_SETTER 0x00000010u
#define PARSER_IS_FUNC_EXPRESSION 0x00000020u
#define PARSER_NAMED_FUNCTION_EXP 0x00000040u
#define PARSER_HAS_NON_STRICT_ARG 0x00000080u
#define PARSER_ARGUMENTS_NEEDED 0x00000100u
#define PARSER_ARGUMENTS_NOT_NEEDED 0x00000200u
#define PARSER_LEXICAL_ENV_NEEDED 0x00000400u
#define PARSER_INSIDE_WITH 0x00000800u
#define PARSER_RESOLVE_THIS_FOR_CALLS 0x00001000u
#define PARSER_HAS_INITIALIZED_VARS 0x00002000u
#define PARSER_HAS_LATE_LIT_INIT 0x00004000u
#define PARSER_NO_END_LABEL 0x00008000u
#define PARSER_NO_REG_STORE 0x00010000u
#define PARSER_DEBUGGER_BREAKPOINT_APPENDED 0x00020000u
#ifndef CONFIG_DISABLE_ES2015_ARROW_FUNCTION
#define PARSER_IS_ARROW_FUNCTION 0x00040000u
#define PARSER_ARROW_PARSE_ARGS 0x00080000u
#endif /* !CONFIG_DISABLE_ES2015_ARROW_FUNCTION */
/* Expression parsing flags. */
#define PARSE_EXPR 0x00
@@ -392,6 +396,10 @@ void parser_set_continues_to_current_position (parser_context_t *context_p, pars
/* Lexer functions */
void lexer_next_token (parser_context_t *context_p);
bool lexer_check_colon (parser_context_t *context_p);
#ifndef CONFIG_DISABLE_ES2015_ARROW_FUNCTION
lexer_token_type_t lexer_check_arrow (parser_context_t *context_p);
#endif /* !CONFIG_DISABLE_ES2015_ARROW_FUNCTION */
void lexer_expect_identifier (parser_context_t *context_p, uint8_t literal_type);
void lexer_scan_identifier (parser_context_t *context_p, bool propety_name);
ecma_char_t lexer_hex_to_character (parser_context_t *context_p, const uint8_t *source_p, int length);
@@ -441,6 +449,9 @@ void parser_free_jumps (parser_stack_iterator_t iterator);
*/
ecma_compiled_code_t *parser_parse_function (parser_context_t *context_p, uint32_t status_flags);
#ifndef CONFIG_DISABLE_ES2015_ARROW_FUNCTION
ecma_compiled_code_t *parser_parse_arrow_function (parser_context_t *context_p, uint32_t status_flags);
#endif /* !CONFIG_DISABLE_ES2015_ARROW_FUNCTION */
/* Error management. */