6ca81ad72a
PR-URL: https://github.com/nodejs/node/pull/30020 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
24 lines
464 B
JavaScript
24 lines
464 B
JavaScript
// Copyright 2019 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
function foo(a, key) {
|
|
a[key];
|
|
}
|
|
|
|
let obj = {};
|
|
let count = 0;
|
|
|
|
var key_obj = {
|
|
toString: function() {
|
|
count++;
|
|
// Force string to be internalized during keyed lookup.
|
|
return 'foo' + count;
|
|
}
|
|
};
|
|
|
|
foo(obj, key_obj);
|
|
|
|
// We should only call toString once.
|
|
assertEquals(count, 1);
|