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Detect assignment pattern for for-in/of (#4140)

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Furthermore do not allow default value for rest parameter

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-08-24 14:47:10 +02:00
committed by GitHub
parent 5b3f01af9d
commit 84bc1e03fb
10 changed files with 123 additions and 446 deletions
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jerry-core/parser/js/js-parser-expr.c
+16 -8
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@@ -3091,10 +3091,7 @@ parser_pattern_get_target (parser_context_t *context_p, /**< context */
}
else
{
if (context_p->next_scanner_info_p->type != SCANNER_TYPE_INITIALIZER)
{
parser_raise_error (context_p, PARSER_ERR_INVALID_DESTRUCTURING_PATTERN);
}
JERRY_ASSERT (context_p->next_scanner_info_p->type == SCANNER_TYPE_INITIALIZER);
scanner_get_location (&start_location, context_p);
scanner_set_location (context_p, &((scanner_location_info_t *) context_p->next_scanner_info_p)->location);
@@ -3205,7 +3202,7 @@ parser_pattern_form_assignment (parser_context_t *context_p, /**< context */
parser_pattern_emit_rhs (context_p, rhs_opcode, literal_index);
if (context_p->token.type == LEXER_ASSIGN)
if (context_p->token.type == LEXER_ASSIGN && !(flags & PARSER_PATTERN_REST_ELEMENT))
{
parser_branch_t skip_init;
lexer_next_token (context_p);
@@ -3273,12 +3270,23 @@ parser_pattern_process_nested_pattern (parser_context_t *context_p, /**< context
| PARSER_PATTERN_LET
| PARSER_PATTERN_CONST
| PARSER_PATTERN_LOCAL
| PARSER_PATTERN_REST_ELEMENT
| PARSER_PATTERN_ARGUMENTS)));
if (context_p->next_scanner_info_p->source_p == context_p->source_p)
JERRY_ASSERT (context_p->next_scanner_info_p->source_p != context_p->source_p
|| context_p->next_scanner_info_p->type == SCANNER_TYPE_INITIALIZER
|| context_p->next_scanner_info_p->type == SCANNER_TYPE_OBJECT_LITERAL_WITH_SUPER);
if (context_p->next_scanner_info_p->source_p == context_p->source_p
&& context_p->next_scanner_info_p->type == SCANNER_TYPE_INITIALIZER)
{
options |= PARSER_PATTERN_TARGET_DEFAULT;
if (!(flags & PARSER_PATTERN_REST_ELEMENT))
{
options |= PARSER_PATTERN_TARGET_DEFAULT;
}
else
{
scanner_release_next (context_p, sizeof (scanner_location_info_t));
}
}
parser_pattern_emit_rhs (context_p, rhs_opcode, literal_index);