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Gorochu
2026-05-26 23:36:42 -07:00
parent ba051b2f74
commit 555ec72358
41615 changed files with 13344630 additions and 1 deletions
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17
deps/v8/test/mjsunit/es6/array-concat-spreadable-arraylike-proxy-length.js vendored Normal file
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// Copyright 2014 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.
// Note: concat does not currently support species so there is no difference
// between [].concat(foo) and Array.prototype.concat.apply(foo).
var getTrap = function(t, key) {
if (key === "length") return {[Symbol.toPrimitive]() {return 3}};
if (key === "2") return "baz";
if (key === "3") return "bar";
};
var target = [];
var obj = new Proxy(target, {get: getTrap, has: () => true});
assertEquals([undefined, undefined, "baz"], [].concat(obj));
assertEquals([undefined, undefined, "baz"], Array.prototype.concat.apply(obj))