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deps/v8/test/mjsunit/compiler/object-create.js
30 строк
918 B
Ujjwal Sharma
deps: update V8 to 7.4.288.13
28 мар 2019, 23:36
28 мар 2019, 23:36
f579e11
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// Copyright 2018 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. // Flags: --allow-natives-syntax (function TestWithNullPrototype() { function f() { return Object.create(null); } %PrepareFunctionForOptimization(f); f(); %OptimizeFunctionOnNextCall(f); assertEquals(undefined, f().foo); })(); (function TestWithCustomPrototype() { const x = {foo: 42}; // This must be defined here for context specialization. function f() { return Object.create(x); } %PrepareFunctionForOptimization(f); f(); %OptimizeFunctionOnNextCall(f); assertEquals(42, f().foo); })(); (function TestWithObjectPrototype() { function f() { return Object.create(Object.prototype); } %PrepareFunctionForOptimization(f); f(); %OptimizeFunctionOnNextCall(f); assertEquals("[object Object]", f().toString()); })();