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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
74 lines
2.9 KiB
JavaScript
74 lines
2.9 KiB
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Properties are serialized once.
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assertEquals('{"x":1}', JSON.stringify({ x : 1 }, ["x", 1, "x", 1]));
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assertEquals('{"1":1}', JSON.stringify({ 1 : 1 }, ["x", 1, "x", 1]));
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assertEquals('{"1":1}', JSON.stringify({ 1 : 1 }, ["1", 1, "1", 1]));
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assertEquals('{"1":1}', JSON.stringify({ 1 : 1 }, [1, "1", 1, "1"]));
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// Properties are visited at most once.
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var fired = 0;
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var getter_obj = { get x() { fired++; return 2; } };
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assertEquals('{"x":2}', JSON.stringify(getter_obj, ["x", "y", "x"]));
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assertEquals(1, fired);
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// Order of the replacer array is followed.
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assertEquals('{"y":4,"x":3}', JSON.stringify({ x : 3, y : 4}, ["y", "x"]));
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assertEquals('{"y":4,"1":2,"x":3}',
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JSON.stringify({ x : 3, y : 4, 1 : 2 }, ["y", 1, "x"]));
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// With a replacer array the value of the property is retrieved using [[Get]]
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// ignoring own and enumerability.
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var a = { x : 8 };
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assertEquals('{"__proto__":{"__proto__":null},"x":8}',
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JSON.stringify(a, ["__proto__", "x", "__proto__"]));
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a.__proto__ = { x : 7 };
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assertEquals('{"__proto__":{"__proto__":{"__proto__":null},"x":7},"x":8}',
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JSON.stringify(a, ["__proto__", "x"]));
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var b = { __proto__: { x: 9 } };
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assertEquals('{}', JSON.stringify(b));
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assertEquals('{"x":9}', JSON.stringify(b, ["x"]));
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var c = {x: 10};
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Object.defineProperty(c, 'x', { enumerable: false });
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assertEquals('{}', JSON.stringify(c));
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assertEquals('{"x":10}', JSON.stringify(c, ["x"]));
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// Arrays are not affected by the replacer array.
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assertEquals("[9,8,7]", JSON.stringify([9, 8, 7], [1, 1]));
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var mixed_arr = [11,12,13];
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mixed_arr.x = 10;
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assertEquals('[11,12,13]', JSON.stringify(mixed_arr, [1, 0, 1]));
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// Array elements of objects are affected.
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var mixed_obj = { x : 3 };
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mixed_obj[0] = 6;
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mixed_obj[1] = 5;
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assertEquals('{"1":5,"0":6}', JSON.stringify(mixed_obj, [1, 0, 1]));
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// Nested object.
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assertEquals('{"z":{"x":3},"x":1}',
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JSON.stringify({ x: 1, y:2, z: {x:3, b:4}}, ["z","x"]));
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// Objects in the replacer array are ignored.
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assertEquals('{}',
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JSON.stringify({ x : 1, "1": 1 }, [{}]));
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assertEquals('{}',
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JSON.stringify({ x : 1, "1": 1 }, [true, undefined, null]));
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assertEquals('{}',
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JSON.stringify({ x : 1, "1": 1 },
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[{ toString: function() { return "x";} }]));
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assertEquals('{}',
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JSON.stringify({ x : 1, "1": 1 },
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[{ valueOf: function() { return 1;} }]));
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// Make sure that property names that clash with the names of Object.prototype
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// still works.
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assertEquals('{"toString":42}', JSON.stringify({ toString: 42 }, ["toString"]));
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// Number wrappers and String wrappers should be unwrapped.
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assertEquals('{"1":1,"s":"s"}',
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JSON.stringify({ 1: 1, s: "s" },
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[new Number(1), new String("s")]));
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