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For in-of declaration should only throw error after initialization. (#3541)

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This patch fixes the error introduced in #3513.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik 2020-02-03 15:12:12 +01:00 committed by GitHub
parent 2fe06f82f1
commit 7734f87fbb
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 38 additions and 5 deletions
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11
jerry-core/parser/js/js-parser-statm.c
View File

@ -1168,11 +1168,6 @@ parser_parse_for_statement_start (parser_context_t *context_p) /**< context */
|| context_p->token.type == LEXER_KEYW_LET
|| context_p->token.type == LEXER_KEYW_CONST)
{
if (context_p->status_flags & PARSER_IS_STRICT)
{
parser_raise_error (context_p, PARSER_ERR_FOR_IN_OF_DECLARATION);
}
token_type = context_p->token.type;
has_context = (context_p->token.type != LEXER_KEYW_VAR);
scanner_get_location (&start_location, context_p);
@ -1311,6 +1306,12 @@ parser_parse_for_statement_start (parser_context_t *context_p) /**< context */
if (context_p->token.type == LEXER_ASSIGN)
{
#if ENABLED (JERRY_ES2015)
if (context_p->status_flags & PARSER_IS_STRICT)
{
parser_raise_error (context_p, PARSER_ERR_FOR_IN_OF_DECLARATION);
}
#endif /* ENABLED (JERRY_ES2015) */
parser_branch_t branch;
/* Initialiser is never executed. */

32
tests/jerry/es2015/forin-header-strict.js
View File

@ -27,3 +27,35 @@ try {
} catch (e) {
assert(e instanceof SyntaxError);
}
var reached = false;
for (var i in {}) {
reached = true;
}
assert(!reached);
for (var i of []) {
reached = true;
}
assert(!reached);
for (let i in {}) {
reached = true;
}
assert(!reached);
for (let i of []) {
reached = true;
}
assert(!reached);
for (const i in {}) {
reached = true;
}
assert(!reached);
for (const i of []) {
reached = true;
}
assert(!reached);