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525 lines
18 KiB
JavaScript
525 lines
18 KiB
JavaScript
// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Date toJSON
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assertEquals("1970-01-01T00:00:00.000Z", new Date(0).toJSON());
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assertEquals("1979-01-11T08:00:00.000Z", new Date("1979-01-11 08:00 GMT").toJSON());
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assertEquals("2005-05-05T05:05:05.000Z", new Date("2005-05-05 05:05:05 GMT").toJSON());
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var n1 = new Date(10000);
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n1.toISOString = function () { return "foo"; };
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assertEquals("foo", n1.toJSON());
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var n2 = new Date(10001);
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n2.toISOString = null;
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assertThrows(function () { n2.toJSON(); }, TypeError);
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var n4 = new Date(10003);
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n4.toISOString = function () {
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assertEquals(0, arguments.length);
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assertEquals(this, n4);
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return null;
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};
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assertEquals(null, n4.toJSON());
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assertTrue(Object.prototype === JSON.__proto__);
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assertEquals("[object JSON]", Object.prototype.toString.call(JSON));
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//Test Date.prototype.toJSON as generic function.
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var d1 = {toJSON: Date.prototype.toJSON,
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toISOString: function() { return 42; }};
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assertEquals(42, d1.toJSON());
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var d2 = {toJSON: Date.prototype.toJSON,
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valueOf: function() { return Infinity; },
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toISOString: function() { return 42; }};
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assertEquals(null, d2.toJSON());
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var d3 = {toJSON: Date.prototype.toJSON,
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valueOf: "not callable",
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toString: function() { return Infinity; },
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toISOString: function() { return 42; }};
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assertEquals(null, d3.toJSON());
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var d4 = {toJSON: Date.prototype.toJSON,
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valueOf: "not callable",
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toString: "not callable either",
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toISOString: function() { return 42; }};
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assertThrows("d4.toJSON()", TypeError); // ToPrimitive throws.
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var d5 = {toJSON: Date.prototype.toJSON,
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valueOf: "not callable",
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toString: function() { return "Infinity"; },
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toISOString: function() { return 42; }};
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assertEquals(42, d5.toJSON());
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var d6 = {toJSON: Date.prototype.toJSON,
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toISOString: function() { return ["not primitive"]; }};
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assertEquals(["not primitive"], d6.toJSON());
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var d7 = {toJSON: Date.prototype.toJSON,
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ISOString: "not callable"};
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assertThrows("d7.toJSON()", TypeError);
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// DontEnum
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for (var p in this) {
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assertFalse(p == "JSON");
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}
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// Parse
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assertEquals({}, JSON.parse("{}"));
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assertEquals({42:37}, JSON.parse('{"42":37}'));
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assertEquals(null, JSON.parse("null"));
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assertEquals(true, JSON.parse("true"));
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assertEquals(false, JSON.parse("false"));
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assertEquals("foo", JSON.parse('"foo"'));
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assertEquals("f\no", JSON.parse('"f\\no"'));
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assertEquals("\b\f\n\r\t\"\u2028\/\\",
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JSON.parse('"\\b\\f\\n\\r\\t\\"\\u2028\\/\\\\"'));
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assertEquals([1.1], JSON.parse("[1.1]"));
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assertEquals([1], JSON.parse("[1.0]"));
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assertEquals(0, JSON.parse("0"));
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assertEquals(1, JSON.parse("1"));
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assertEquals(0.1, JSON.parse("0.1"));
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assertEquals(1.1, JSON.parse("1.1"));
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assertEquals(1.1, JSON.parse("1.100000"));
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assertEquals(1.111111, JSON.parse("1.111111"));
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assertEquals(-0, JSON.parse("-0"));
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assertEquals(-1, JSON.parse("-1"));
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assertEquals(-0.1, JSON.parse("-0.1"));
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assertEquals(-1.1, JSON.parse("-1.1"));
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assertEquals(-1.1, JSON.parse("-1.100000"));
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assertEquals(-1.111111, JSON.parse("-1.111111"));
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assertEquals(11, JSON.parse("1.1e1"));
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assertEquals(11, JSON.parse("1.1e+1"));
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assertEquals(0.11, JSON.parse("1.1e-1"));
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assertEquals(11, JSON.parse("1.1E1"));
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assertEquals(11, JSON.parse("1.1E+1"));
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assertEquals(0.11, JSON.parse("1.1E-1"));
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assertEquals([], JSON.parse("[]"));
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assertEquals([1], JSON.parse("[1]"));
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assertEquals([1, "2", true, null], JSON.parse('[1, "2", true, null]'));
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assertEquals("", JSON.parse('""'));
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assertEquals(["", "", -0, ""], JSON.parse('[ "" , "" , -0, ""]'));
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assertEquals("", JSON.parse('""'));
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function GetFilter(name) {
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function Filter(key, value) {
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return (key == name) ? undefined : value;
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}
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return Filter;
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}
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var pointJson = '{"x": 1, "y": 2}';
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assertEquals({'x': 1, 'y': 2}, JSON.parse(pointJson));
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assertEquals({'x': 1}, JSON.parse(pointJson, GetFilter('y')));
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assertEquals({'y': 2}, JSON.parse(pointJson, GetFilter('x')));
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assertEquals([1, 2, 3], JSON.parse("[1, 2, 3]"));
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var array1 = JSON.parse("[1, 2, 3]", GetFilter(1));
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assertEquals([1, , 3], array1);
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assertFalse(array1.hasOwnProperty(1)); // assertEquals above is not enough
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var array2 = JSON.parse("[1, 2, 3]", GetFilter(2));
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assertEquals([1, 2, ,], array2);
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assertFalse(array2.hasOwnProperty(2));
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function DoubleNumbers(key, value) {
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return (typeof value == 'number') ? 2 * value : value;
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}
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var deepObject = '{"a": {"b": 1, "c": 2}, "d": {"e": {"f": 3}}}';
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assertEquals({"a": {"b": 1, "c": 2}, "d": {"e": {"f": 3}}},
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JSON.parse(deepObject));
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assertEquals({"a": {"b": 2, "c": 4}, "d": {"e": {"f": 6}}},
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JSON.parse(deepObject, DoubleNumbers));
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function TestInvalid(str) {
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assertThrows(function () { JSON.parse(str); }, SyntaxError);
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}
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TestInvalid('abcdef');
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TestInvalid('isNaN()');
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TestInvalid('{"x": [1, 2, deepObject]}');
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TestInvalid('[1, [2, [deepObject], 3], 4]');
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TestInvalid('function () { return 0; }');
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TestInvalid("[1, 2");
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TestInvalid('{"x": 3');
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// JavaScript number literals not valid in JSON.
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TestInvalid('[01]');
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TestInvalid('[.1]');
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TestInvalid('[1.]');
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TestInvalid('[1.e1]');
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TestInvalid('[-.1]');
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TestInvalid('[-1.]');
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// Plain invalid number literals.
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TestInvalid('-');
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TestInvalid('--1');
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TestInvalid('-1e');
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TestInvalid('1e--1]');
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TestInvalid('1e+-1');
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TestInvalid('1e-+1');
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TestInvalid('1e++1');
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// JavaScript string literals not valid in JSON.
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TestInvalid("'single quote'"); // Valid JavaScript
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TestInvalid('"\\a invalid escape"');
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TestInvalid('"\\v invalid escape"'); // Valid JavaScript
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TestInvalid('"\\\' invalid escape"'); // Valid JavaScript
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TestInvalid('"\\x42 invalid escape"'); // Valid JavaScript
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TestInvalid('"\\u202 invalid escape"');
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TestInvalid('"\\012 invalid escape"');
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TestInvalid('"Unterminated string');
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TestInvalid('"Unterminated string\\"');
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TestInvalid('"Unterminated string\\\\\\"');
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// Test bad JSON that would be good JavaScript (ES5).
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TestInvalid("{true:42}");
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TestInvalid("{false:42}");
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TestInvalid("{null:42}");
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TestInvalid("{'foo':42}");
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TestInvalid("{42:42}");
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TestInvalid("{0:42}");
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TestInvalid("{-1:42}");
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// Test for trailing garbage detection.
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TestInvalid('42 px');
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TestInvalid('42 .2');
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TestInvalid('42 2');
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TestInvalid('42 e1');
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TestInvalid('"42" ""');
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TestInvalid('"42" ""');
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TestInvalid('"" ""');
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TestInvalid('true ""');
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TestInvalid('false ""');
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TestInvalid('null ""');
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TestInvalid('null ""');
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TestInvalid('[] ""');
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TestInvalid('[true] ""');
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TestInvalid('{} ""');
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TestInvalid('{"x":true} ""');
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TestInvalid('"Garbage""After string"');
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// Stringify
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function TestStringify(expected, input) {
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assertEquals(expected, JSON.stringify(input));
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assertEquals(expected, JSON.stringify(input, (key, value) => value));
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assertEquals(JSON.stringify(input, null, "="),
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JSON.stringify(input, (key, value) => value, "="));
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}
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TestStringify("true", true);
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TestStringify("false", false);
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TestStringify("null", null);
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TestStringify("false", {toJSON: function () { return false; }});
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TestStringify("4", 4);
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TestStringify('"foo"', "foo");
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TestStringify("null", Infinity);
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TestStringify("null", -Infinity);
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TestStringify("null", NaN);
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TestStringify("4", new Number(4));
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TestStringify('"bar"', new String("bar"));
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TestStringify('"foo\\u0000bar"', "foo\0bar");
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TestStringify('"f\\"o\'o\\\\b\\ba\\fr\\nb\\ra\\tz"',
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"f\"o\'o\\b\ba\fr\nb\ra\tz");
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TestStringify("[1,2,3]", [1, 2, 3]);
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assertEquals("[\n 1,\n 2,\n 3\n]", JSON.stringify([1, 2, 3], null, 1));
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assertEquals("[\n 1,\n 2,\n 3\n]", JSON.stringify([1, 2, 3], null, 2));
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assertEquals("[\n 1,\n 2,\n 3\n]",
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JSON.stringify([1, 2, 3], null, new Number(2)));
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assertEquals("[\n^1,\n^2,\n^3\n]", JSON.stringify([1, 2, 3], null, "^"));
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assertEquals("[\n^1,\n^2,\n^3\n]",
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JSON.stringify([1, 2, 3], null, new String("^")));
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assertEquals("[\n 1,\n 2,\n [\n 3,\n [\n 4\n ],\n 5\n ],\n 6,\n 7\n]",
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JSON.stringify([1, 2, [3, [4], 5], 6, 7], null, 1));
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assertEquals("[]", JSON.stringify([], null, 1));
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assertEquals("[1,2,[3,[4],5],6,7]",
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JSON.stringify([1, 2, [3, [4], 5], 6, 7], null));
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assertEquals("[2,4,[6,[8],10],12,14]",
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JSON.stringify([1, 2, [3, [4], 5], 6, 7], DoubleNumbers));
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TestStringify('["a","ab","abc"]', ["a","ab","abc"]);
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TestStringify('{"a":1,"c":true}', { a : 1,
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b : function() { 1 },
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c : true,
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d : function() { 2 } });
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TestStringify('[1,null,true,null]',
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[1, function() { 1 }, true, function() { 2 }]);
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TestStringify('"toJSON 123"',
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{ toJSON : function() { return 'toJSON 123'; } });
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TestStringify('{"a":321}',
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{ a : { toJSON : function() { return 321; } } });
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var counter = 0;
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assertEquals('{"getter":123}',
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JSON.stringify({ get getter() { counter++; return 123; } }));
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assertEquals(1, counter);
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assertEquals('{"getter":123}',
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JSON.stringify({ get getter() { counter++; return 123; } },
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null,
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0));
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assertEquals(2, counter);
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TestStringify('{"a":"abc","b":"\u1234bc"}',
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{ a : "abc", b : "\u1234bc" });
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var a = { a : 1, b : 2 };
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delete a.a;
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TestStringify('{"b":2}', a);
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var b = {};
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b.__proto__ = { toJSON : function() { return 321;} };
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TestStringify("321", b);
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var array = [""];
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var expected = '""';
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for (var i = 0; i < 10000; i++) {
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array.push("");
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expected = '"",' + expected;
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}
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expected = '[' + expected + ']';
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TestStringify(expected, array);
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var circular = [1, 2, 3];
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circular[2] = circular;
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assertThrows(function () { JSON.stringify(circular); }, TypeError);
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assertThrows(function () { JSON.stringify(circular, null, 0); }, TypeError);
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var singleton = [];
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var multiOccurrence = [singleton, singleton, singleton];
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TestStringify("[[],[],[]]", multiOccurrence);
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TestStringify('{"x":5,"y":6}', {x:5,y:6});
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assertEquals('{"x":5}', JSON.stringify({x:5,y:6}, ['x']));
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assertEquals('{\n "a": "b",\n "c": "d"\n}',
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JSON.stringify({a:"b",c:"d"}, null, 1));
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assertEquals('{"y":6,"x":5}', JSON.stringify({x:5,y:6}, ['y', 'x']));
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assertEquals('{"y":6,"x":5}', JSON.stringify({x:5,y:6}, ['y', 'x', 'x', 'y']));
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// toJSON get string keys.
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var checker = {};
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var array = [checker];
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checker.toJSON = function(key) { return 1 + key; };
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TestStringify('["10"]', array);
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// The gap is capped at ten characters if specified as string.
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assertEquals('{\n "a": "b",\n "c": "d"\n}',
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JSON.stringify({a:"b",c:"d"}, null,
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" /*characters after 10th*/"));
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//The gap is capped at ten characters if specified as number.
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assertEquals('{\n "a": "b",\n "c": "d"\n}',
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JSON.stringify({a:"b",c:"d"}, null, 15));
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// Replaced wrapped primitives are unwrapped.
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function newx(k, v) { return (k == "x") ? new v(42) : v; }
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assertEquals('{"x":"42"}', JSON.stringify({x: String}, newx));
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assertEquals('{"x":42}', JSON.stringify({x: Number}, newx));
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assertEquals('{"x":true}', JSON.stringify({x: Boolean}, newx));
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TestStringify(undefined, undefined);
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TestStringify(undefined, function () { });
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// Arrays with missing, undefined or function elements have those elements
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// replaced by null.
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TestStringify("[null,null,null]", [undefined,,function(){}]);
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// Objects with undefined or function properties (including replaced properties)
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// have those properties ignored.
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assertEquals('{}',
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JSON.stringify({a: undefined, b: function(){}, c: 42, d: 42},
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function(k, v) { if (k == "c") return undefined;
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if (k == "d") return function(){};
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return v; }));
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TestInvalid('1); throw "foo"; (1');
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var x = 0;
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eval("(1); x++; (1)");
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TestInvalid('1); x++; (1');
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// Test string conversion of argument.
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var o = { toString: function() { return "42"; } };
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assertEquals(42, JSON.parse(o));
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for (var i = 0x0000; i <= 0xFFFF; i++) {
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var string = String.fromCharCode(i);
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var encoded = JSON.stringify(string);
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var expected = 'uninitialized';
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// Following the ES5 specification of the abstraction function Quote.
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if (string == '"' || string == '\\') {
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// Step 2.a
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expected = '\\' + string;
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} else if ("\b\t\n\r\f".includes(string)) {
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// Step 2.b
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if (string == '\b') expected = '\\b';
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else if (string == '\t') expected = '\\t';
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else if (string == '\n') expected = '\\n';
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else if (string == '\f') expected = '\\f';
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else if (string == '\r') expected = '\\r';
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} else if (i < 0x20) {
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// Step 2.c
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expected = '\\u' + i.toString(16).padStart(4, '0');
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// TODO(mathias): Add i >= 0xD800 && i <= 0xDFFF case once
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// --harmony-json-stringify is enabled by default.
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} else {
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expected = string;
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}
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assertEquals('"' + expected + '"', encoded, "code point " + i);
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}
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// Ensure that wrappers and callables are handled correctly.
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var num37 = new Number(42);
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num37.valueOf = function() { return 37; };
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var numFoo = new Number(42);
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numFoo.valueOf = "not callable";
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numFoo.toString = function() { return "foo"; };
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var numTrue = new Number(42);
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numTrue.valueOf = function() { return true; }
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var strFoo = new String("bar");
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strFoo.toString = function() { return "foo"; };
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var str37 = new String("bar");
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str37.toString = "not callable";
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str37.valueOf = function() { return 37; };
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var strTrue = new String("bar");
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strTrue.toString = function() { return true; }
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var func = function() { /* Is callable */ };
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var funcJSON = function() { /* Is callable */ };
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funcJSON.toJSON = function() { return "has toJSON"; };
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var re = /Is callable/;
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var reJSON = /Is callable/;
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reJSON.toJSON = function() { return "has toJSON"; };
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TestStringify('[37,null,1,"foo","37","true",null,"has toJSON",{},"has toJSON"]',
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[num37, numFoo, numTrue,
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strFoo, str37, strTrue,
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func, funcJSON, re, reJSON]);
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var oddball = Object(42);
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oddball.__proto__ = { __proto__: null, toString: function() { return true; } };
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TestStringify('1', oddball);
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var getCount = 0;
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var callCount = 0;
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var counter = { get toJSON() { getCount++;
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return function() { callCount++;
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return 42; }; } };
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// RegExps are not callable, so they are stringified as objects.
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TestStringify('{}', /regexp/);
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TestStringify('42', counter);
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assertEquals(4, getCount);
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assertEquals(4, callCount);
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var oddball2 = Object(42);
|
|
var oddball3 = Object("foo");
|
|
oddball3.__proto__ = { __proto__: null,
|
|
toString: "not callable",
|
|
valueOf: function() { return true; } };
|
|
oddball2.__proto__ = { __proto__: null,
|
|
toJSON: function () { return oddball3; } }
|
|
TestStringify('"true"', oddball2);
|
|
|
|
|
|
var falseNum = Object("37");
|
|
falseNum.__proto__ = Number.prototype;
|
|
falseNum.toString = function() { return 42; };
|
|
TestStringify('"42"', falseNum);
|
|
|
|
// Parse an object value as __proto__.
|
|
var o1 = JSON.parse('{"__proto__":[]}');
|
|
assertEquals([], o1.__proto__);
|
|
assertEquals(["__proto__"], Object.keys(o1));
|
|
assertEquals([], Object.getOwnPropertyDescriptor(o1, "__proto__").value);
|
|
assertEquals(["__proto__"], Object.getOwnPropertyNames(o1));
|
|
assertTrue(o1.hasOwnProperty("__proto__"));
|
|
assertTrue(Object.prototype.isPrototypeOf(o1));
|
|
|
|
// Parse a non-object value as __proto__.
|
|
var o2 = JSON.parse('{"__proto__":5}');
|
|
assertEquals(5, o2.__proto__);
|
|
assertEquals(["__proto__"], Object.keys(o2));
|
|
assertEquals(5, Object.getOwnPropertyDescriptor(o2, "__proto__").value);
|
|
assertEquals(["__proto__"], Object.getOwnPropertyNames(o2));
|
|
assertTrue(o2.hasOwnProperty("__proto__"));
|
|
assertTrue(Object.prototype.isPrototypeOf(o2));
|
|
|
|
var json = '{"stuff before slash\\\\stuff after slash":"whatever"}';
|
|
TestStringify(json, JSON.parse(json));
|
|
|
|
|
|
// https://bugs.chromium.org/p/v8/issues/detail?id=3139
|
|
|
|
reviver = function(p, v) {
|
|
if (p == "a") {
|
|
this.b = { get x() {return null}, set x(_){throw 666} }
|
|
}
|
|
return v;
|
|
}
|
|
assertEquals({a: 0, b: {x: null}}, JSON.parse('{"a":0,"b":1}', reviver));
|
|
|
|
|
|
// Make sure a failed [[Delete]] doesn't throw
|
|
|
|
reviver = function(p, v) {
|
|
Object.freeze(this);
|
|
return p === "" ? v : undefined;
|
|
}
|
|
assertEquals({a: 0, b: 1}, JSON.parse('{"a":0,"b":1}', reviver));
|
|
|
|
|
|
// Make sure a failed [[DefineProperty]] doesn't throw
|
|
|
|
reviver = function(p, v) {
|
|
Object.freeze(this);
|
|
return p === "" ? v : 42;
|
|
}
|
|
assertEquals({a: 0, b: 1}, JSON.parse('{"a":0,"b":1}', reviver));
|
|
|
|
reviver = (k, v) => (v === Infinity) ? "inf" : v;
|
|
assertEquals('{"":"inf"}', JSON.stringify({"":Infinity}, reviver));
|