| Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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. |
| 4 | |
| 5 | // http://ecma-international.org/ecma-262/6.0/#sec-json.stringify |
| 6 | // Step 4.b.iii.5.f.i |
| 7 | |
| 8 | var calls = 0; |
| 9 | |
| 10 | var num = new Number; |
| 11 | num.toString = function() { |
| 12 | calls++; |
| 13 | return ''; |
| 14 | }; |
| 15 | num.valueOf = function() { |
| 16 | assertUnreachable(); |
| 17 | }; |
| 18 | |
| 19 | JSON.stringify('', [num]); |
| 20 | assertEquals(1, calls); |