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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-scanner.c
+30 -3
View File
@@ -873,6 +873,20 @@ scanner_scan_primary_expression_end (parser_context_t *context_p, /**< context *
return SCAN_NEXT_TOKEN;
}
if (context_p->stack_top_uint8 == SCAN_STACK_FOR_START_PATTERN)
{
JERRY_ASSERT (binding_type == SCANNER_BINDING_NONE);
parser_stack_change_last_uint8 (context_p, SCAN_STACK_FOR_START);
if (context_p->token.type == LEXER_KEYW_IN || SCANNER_IDENTIFIER_IS_OF ())
{
scanner_info_t *info_p = scanner_insert_info (context_p, source_start.source_p, sizeof (scanner_info_t));
info_p->type = SCANNER_TYPE_FOR_PATTERN;
return SCAN_KEEP_TOKEN;
}
}
if (context_p->token.type != LEXER_ASSIGN)
{
if (SCANNER_NEEDS_BINDING_LIST (binding_type))
@@ -1243,6 +1257,12 @@ scanner_scan_statement (parser_context_t *context_p, /**< context */
break;
}
#if ENABLED (JERRY_ESNEXT)
case LEXER_LEFT_BRACE:
case LEXER_LEFT_SQUARE:
{
stack_mode = SCAN_STACK_FOR_START_PATTERN;
break;
}
case LEXER_LITERAL:
{
if (!lexer_token_is_let (context_p))
@@ -3515,16 +3535,16 @@ scan_completed:
print_location = true;
break;
}
case SCANNER_TYPE_OBJECT_LITERAL_WITH_SUPER:
case SCANNER_TYPE_FOR_PATTERN:
{
JERRY_DEBUG_MSG (" OBJECT-LITERAL-WITH-SUPER: source:%d\n",
JERRY_DEBUG_MSG (" SCANNER_TYPE_FOR_PATTERN: source:%d\n",
(int) (info_p->source_p - source_start_p));
print_location = false;
break;
}
case SCANNER_TYPE_CLASS_CONSTRUCTOR:
{
JERRY_DEBUG_MSG (" CLASS-CONSTRUCTOR: source:%d\n",
JERRY_DEBUG_MSG (" CLASS_CONSTRUCTOR: source:%d\n",
(int) (info_p->source_p - source_start_p));
print_location = false;
break;
@@ -3547,6 +3567,13 @@ scan_completed:
(int) (info_p->source_p - source_start_p));
break;
}
case SCANNER_TYPE_OBJECT_LITERAL_WITH_SUPER:
{
JERRY_DEBUG_MSG (" OBJECT_LITERAL_WITH_SUPER: source:%d\n",
(int) (info_p->source_p - source_start_p));
print_location = false;
break;
}
#endif /* ENABLED (JERRY_ESNEXT) */
}