41903f2af6
Split up the test so each test runs in a fresh Isolate with pristine protector state. Note that testArrayConcatES5 was not split out because it is a duplicate of mjsunit/array-concat.js, and testConcatRevokedProxy has already been split out as mjsunit/es6/array-concat-revocable-revoked-proxy-[12].js. Bug: v8:9837 Change-Id: I8f744b0263c82f1dae61a55032124d9129f8e6f3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864007 Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/master@{#64366}
18 lines
701 B
JavaScript
18 lines
701 B
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Note: concat does not currently support species so there is no difference
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// between [].concat(foo) and Array.prototype.concat.apply(foo).
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var getTrap = function(t, key) {
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if (key === "length") return {[Symbol.toPrimitive]() {return 3}};
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if (key === "2") return "baz";
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if (key === "3") return "bar";
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};
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var target = [];
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var obj = new Proxy(target, {get: getTrap, has: () => true});
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assertEquals([undefined, undefined, "baz"], [].concat(obj));
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assertEquals([undefined, undefined, "baz"], Array.prototype.concat.apply(obj))
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