2e4efcfac2
To avoid tanking context startup performance, only the actual installation of the JS-exposed API is flag-guarded. The remainder of the implementation still resides in the snapshot. Review URL: https://codereview.chromium.org/1257063003 Cr-Commit-Position: refs/heads/master@{#30017}
61 lines
1.4 KiB
JavaScript
61 lines
1.4 KiB
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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// Flags: --harmony-object-observe
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// Flags: --allow-natives-syntax
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var v = 0;
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function push_wrapper(array, value) {
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array.push(value);
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}
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function pop_wrapper(array) {
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return array.pop();
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}
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// Test that Object.observe() notification events are properly sent from
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// Array.push() and Array.pop() both from optimized and un-optimized code.
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var array = [];
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function somethingChanged(changes) {
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v++;
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}
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Object.observe(array, somethingChanged);
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push_wrapper(array, 1);
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%RunMicrotasks();
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assertEquals(1, array.length);
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assertEquals(1, v);
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push_wrapper(array, 1);
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%RunMicrotasks();
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assertEquals(2, array.length);
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assertEquals(2, v);
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%OptimizeFunctionOnNextCall(push_wrapper);
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push_wrapper(array, 1);
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%RunMicrotasks();
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assertEquals(3, array.length);
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assertEquals(3, v);
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push_wrapper(array, 1);
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%RunMicrotasks();
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assertEquals(4, array.length);
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assertEquals(4, v);
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pop_wrapper(array);
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%RunMicrotasks();
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assertEquals(3, array.length);
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assertEquals(5, v);
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pop_wrapper(array);
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%RunMicrotasks();
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assertEquals(2, array.length);
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assertEquals(6, v);
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%OptimizeFunctionOnNextCall(pop_wrapper);
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pop_wrapper(array);
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%RunMicrotasks();
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assertEquals(1, array.length);
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assertEquals(7, v);
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pop_wrapper(array);
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%RunMicrotasks();
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assertEquals(0, array.length);
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assertEquals(8, v);
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