// Copyright 2017 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 TestReflectGetPrototypeOfOnPrimitive() { function f() { return Reflect.getPrototypeOf(""); } assertThrows(f, TypeError); assertThrows(f, TypeError); %OptimizeFunctionOnNextCall(f); assertThrows(f, TypeError); })(); (function TestObjectGetPrototypeOfOnPrimitive() { function f() { return Object.getPrototypeOf(""); } assertSame(String.prototype, f()); assertSame(String.prototype, f()); %OptimizeFunctionOnNextCall(f); assertSame(String.prototype, f()); })(); (function TestDunderProtoOnPrimitive() { function f() { return "".__proto__; } assertSame(String.prototype, f()); assertSame(String.prototype, f()); %OptimizeFunctionOnNextCall(f); assertSame(String.prototype, f()); })();