1 // Copyright 2015 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 function Stringified(toString) {
6 var valueOf = "-" + toString + "-";
8 toString: function() { return toString; },
9 valueOf: function() { return valueOf; }
13 assertEquals("a.b.", "a.".concat(Stringified("b.")));
14 assertEquals("a.b.c.", "a.".concat(Stringified("b."), Stringified("c.")));