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Implement parsing await. (#3738)

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Several bugs fixed for parsing yield as well.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-05-15 22:26:05 +02:00
committed by GitHub
parent a6f6bce6f0
commit 1f00d750b7
21 changed files with 569 additions and 135 deletions
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jerry-core/parser/js/js-parser.c
+8 -6
View File
@@ -1718,10 +1718,10 @@ parser_parse_function_arguments (parser_context_t *context_p, /**< context */
bool has_duplicated_arg_names = false;
/* TODO: Currently async iterators are not supported, so generators ignore the async modifier. */
if ((context_p->next_scanner_info_p->u8_arg & SCANNER_FUNCTION_ASYNC)
&& !(context_p->status_flags & PARSER_IS_GENERATOR_FUNCTION))
uint32_t mask = (PARSER_IS_GENERATOR_FUNCTION | PARSER_IS_ASYNC_FUNCTION);
if ((context_p->status_flags & mask) == mask)
{
context_p->status_flags |= PARSER_IS_ASYNC_FUNCTION;
context_p->status_flags &= (uint32_t) ~PARSER_IS_ASYNC_FUNCTION;
}
#endif /* ENABLED (JERRY_ES2015) */
@@ -1734,7 +1734,7 @@ parser_parse_function_arguments (parser_context_t *context_p, /**< context */
parser_emit_cbc (context_p, CBC_POP);
}
context_p->status_flags &= (uint32_t) ~PARSER_DISALLOW_YIELD;
context_p->status_flags &= (uint32_t) ~PARSER_DISALLOW_AWAIT_YIELD;
#endif /* ENABLED (JERRY_ES2015) */
scanner_create_variables (context_p, SCANNER_CREATE_VARS_NO_OPTS);
return;
@@ -1972,7 +1972,7 @@ parser_parse_function_arguments (parser_context_t *context_p, /**< context */
}
}
context_p->status_flags &= (uint32_t) ~(PARSER_DISALLOW_YIELD | PARSER_FUNCTION_IS_PARSING_ARGS);
context_p->status_flags &= (uint32_t) ~(PARSER_DISALLOW_AWAIT_YIELD | PARSER_FUNCTION_IS_PARSING_ARGS);
#endif /* ENABLED (JERRY_ES2015) */
scanner_create_variables (context_p, SCANNER_CREATE_VARS_IS_FUNCTION_BODY);
@@ -2529,7 +2529,7 @@ parser_parse_arrow_function (parser_context_t *context_p, /**< context */
}
#endif /* ENABLED (JERRY_DEBUGGER) */
if (context_p->token.type == LEXER_ARROW_LEFT_PAREN)
if (context_p->token.type == LEXER_LEFT_PAREN)
{
lexer_next_token (context_p);
parser_parse_function_arguments (context_p, LEXER_RIGHT_PAREN);
@@ -2581,6 +2581,8 @@ parser_parse_arrow_function (parser_context_t *context_p, /**< context */
}
}
parser_flush_cbc (context_p);
lexer_update_await_yield (context_p, saved_context.status_flags);
}
compiled_code_p = parser_post_processing (context_p);