| // Copyright 2015 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 test1(s) { |
| return s.toString; |
| } |
| %PrepareFunctionForOptimization(test1); |
| assertSame(test1(Symbol()), Symbol.prototype.toString); |
| assertSame(test1(Symbol()), Symbol.prototype.toString); |
| %OptimizeFunctionOnNextCall(test1); |
| assertSame(test1(Symbol()), Symbol.prototype.toString); |
| |
| function test2(s) { |
| return s.valueOf; |
| } |
| %PrepareFunctionForOptimization(test2); |
| assertSame(test2(Symbol()), Symbol.prototype.valueOf); |
| assertSame(test2(Symbol()), Symbol.prototype.valueOf); |
| %OptimizeFunctionOnNextCall(test2); |
| assertSame(test2(Symbol()), Symbol.prototype.valueOf); |
| |
| Symbol.prototype.foo = 1; |
| function test3(s) { |
| return s["foo"]; |
| } |
| %PrepareFunctionForOptimization(test3); |
| assertEquals(test3(Symbol()), 1); |
| assertEquals(test3(Symbol()), 1); |
| %OptimizeFunctionOnNextCall(test3); |
| assertEquals(test3(Symbol()), 1); |
| |
| Symbol.prototype.bar = function() { "use strict"; return this; } |
| function test4(s) { |
| return s.bar(); |
| } |
| %PrepareFunctionForOptimization(test4); |
| var s = Symbol("foo"); |
| assertEquals(test4(s), s); |
| assertEquals(test4(s), s); |
| %OptimizeFunctionOnNextCall(test4); |
| assertEquals(test4(s), s); |