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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); | |
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