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Implement throwing ReferenceErrors for let/const variables. (#3264)

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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
2019-10-31 11:09:02 +01:00
committed by Dániel Bátyai
parent d1faed7d03
commit 6a342fcdd6
16 changed files with 306 additions and 75 deletions
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jerry-core/parser/js/js-parser-expr.c
+15 -8
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@@ -586,6 +586,11 @@ parser_parse_class (parser_context_t *context_p, /**< context */
{
JERRY_ASSERT (context_p->token.type == LEXER_KEYW_CLASS);
#if ENABLED (JERRY_ES2015_MODULE_SYSTEM)
/* FIXME: Remove this hack after module classes are supported. */
uint16_t assign_opcode = CBC_ASSIGN_LET_CONST;
#endif /* ENABLED (JERRY_ES2015_MODULE_SYSTEM) */
uint16_t class_ident_index = PARSER_MAXIMUM_NUMBER_OF_LITERALS;
if (is_statement)
@@ -595,19 +600,19 @@ parser_parse_class (parser_context_t *context_p, /**< context */
JERRY_ASSERT (context_p->token.type == LEXER_LITERAL
&& context_p->token.lit_location.type == LEXER_IDENT_LITERAL);
#if ENABLED (JERRY_ES2015)
if (context_p->next_scanner_info_p->source_p == context_p->source_p)
{
JERRY_ASSERT (context_p->next_scanner_info_p->type == SCANNER_TYPE_ERR_REDECLARED);
parser_raise_error (context_p, PARSER_ERR_VARIABLE_REDECLARED);
}
#endif /* ENABLED (JERRY_ES2015) */
class_ident_index = context_p->lit_object.index;
#if ENABLED (JERRY_ES2015_MODULE_SYSTEM)
if (context_p->status_flags & PARSER_MODULE_STORE_IDENT)
{
assign_opcode = CBC_ASSIGN_SET_IDENT;
context_p->module_identifier_lit_p = context_p->lit_object.literal_p;
context_p->status_flags &= (uint32_t) ~(PARSER_MODULE_STORE_IDENT);
}
@@ -658,17 +663,19 @@ parser_parse_class (parser_context_t *context_p, /**< context */
parser_emit_cbc_literal (context_p, CBC_SET_PROPERTY, context_p->lit_object.index);
if (is_statement)
{
parser_emit_cbc_literal (context_p, CBC_ASSIGN_SET_IDENT, class_ident_index);
}
if (create_class_env)
{
parser_parse_super_class_context_end (context_p, is_statement);
parser_parse_super_class_context_end (context_p);
context_p->status_flags &= (uint32_t) ~(PARSER_CLASS_HAS_SUPER | PARSER_CLASS_IMPLICIT_SUPER);
}
if (is_statement)
{
parser_emit_cbc_literal (context_p,
class_ident_index >= PARSER_REGISTER_START ? CBC_MOV_IDENT : assign_opcode,
class_ident_index);
}
parser_flush_cbc (context_p);
if (!is_strict)