25 lines
618 B
JavaScript
25 lines
618 B
JavaScript
|
// Copyright 2014 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 MyWrapper(v) {
|
||
|
|
return { valueOf: function() { return v } };
|
||
|
|
}
|
||
|
|
|
||
|
|
function f() {
|
||
|
|
assertEquals("truex", true + "x");
|
||
|
|
assertEquals("truey", true + new String("y"));
|
||
|
|
assertEquals("truez", true + new MyWrapper("z"));
|
||
|
|
|
||
|
|
assertEquals("xtrue", "x" + true);
|
||
|
|
assertEquals("ytrue", new String("y") + true);
|
||
|
|
assertEquals("ztrue", new MyWrapper("z") + true);
|
||
|
|
}
|
||
|
|
|
||
|
|
f();
|
||
|
|
f();
|
||
|
|
%OptimizeFunctionOnNextCall(f);
|
||
|
|
f();
|