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Implement rest parameter support for destructuring object patterns. (#4318)

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JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-10-29 10:49:08 +01:00
committed by GitHub
parent 484e999dec
commit c7986fd2c5
22 changed files with 632 additions and 528 deletions
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jerry-core/parser/js/js-parser.c
+28 -13
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@@ -1884,22 +1884,37 @@ parser_parse_function_arguments (parser_context_t *context_p, /**< context */
if (context_p->next_scanner_info_p->source_p == context_p->source_p)
{
if (context_p->next_scanner_info_p->type != SCANNER_TYPE_INITIALIZER)
if (context_p->next_scanner_info_p->type == SCANNER_TYPE_INITIALIZER)
{
if (context_p->next_scanner_info_p->u8_arg & SCANNER_LITERAL_OBJECT_HAS_REST)
{
flags |= PARSER_PATTERN_HAS_REST_ELEMENT;
}
if (context_p->status_flags & PARSER_FUNCTION_HAS_REST_PARAM)
{
parser_raise_error (context_p, PARSER_ERR_REST_PARAMETER_DEFAULT_INITIALIZER);
}
if (context_p->argument_length == UINT16_MAX)
{
context_p->argument_length = context_p->argument_count;
}
flags |= PARSER_PATTERN_TARGET_DEFAULT;
}
else if (context_p->next_scanner_info_p->type == SCANNER_TYPE_LITERAL_FLAGS)
{
if (context_p->next_scanner_info_p->u8_arg & SCANNER_LITERAL_OBJECT_HAS_REST)
{
flags |= PARSER_PATTERN_HAS_REST_ELEMENT;
}
scanner_release_next (context_p, sizeof (scanner_info_t));
}
else
{
parser_raise_error (context_p, PARSER_ERR_INVALID_DESTRUCTURING_PATTERN);
}
if (context_p->status_flags & PARSER_FUNCTION_HAS_REST_PARAM)
{
parser_raise_error (context_p, PARSER_ERR_REST_PARAMETER_DEFAULT_INITIALIZER);
}
if (context_p->argument_length == UINT16_MAX)
{
context_p->argument_length = context_p->argument_count;
}
flags |= PARSER_PATTERN_TARGET_DEFAULT;
}
parser_parse_initializer (context_p, flags);