Added validating JSON parser mode to parser.

test/mjsunit/json.js

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 75 matching lines @@
 assertEquals(null, n4.toJSON());
 
 assertEquals(Object.prototype, JSON.__proto__);
 assertEquals("[object JSON]", Object.prototype.toString.call(JSON));
 
 // DontEnum
 for (var p in this)
   assertFalse(p == "JSON");
 
 // Parse
-
 assertEquals({}, JSON.parse("{}"));
+assertEquals({42:37}, JSON.parse('{"42":37}'));
 assertEquals(null, JSON.parse("null"));
 assertEquals(true, JSON.parse("true"));
 assertEquals(false, JSON.parse("false"));
 assertEquals("foo", JSON.parse('"foo"'));
 assertEquals("f\no", JSON.parse('"f\\no"'));
+assertEquals("\b\f\n\r\t\"\u2028\/\\",
+             JSON.parse('"\\b\\f\\n\\r\\t\\"\\u2028\\/\\\\"'));
+assertEquals([1.1], JSON.parse("[1.1]"));
+assertEquals([1], JSON.parse("[1.0]"));
+
+assertEquals(0, JSON.parse("0"));
+assertEquals(1, JSON.parse("1"));
+assertEquals(0.1, JSON.parse("0.1"));
 assertEquals(1.1, JSON.parse("1.1"));
-assertEquals(1, JSON.parse("1.0"));
-assertEquals(0.0000000003, JSON.parse("3e-10"));
+assertEquals(1.1, JSON.parse("1.100000"));
+assertEquals(1.111111, JSON.parse("1.111111"));
+assertEquals(-0, JSON.parse("-0"));
+assertEquals(-1, JSON.parse("-1"));
+assertEquals(-0.1, JSON.parse("-0.1"));
+assertEquals(-1.1, JSON.parse("-1.1"));
+assertEquals(-1.1, JSON.parse("-1.100000"));
+assertEquals(-1.111111, JSON.parse("-1.111111"));
+assertEquals(11, JSON.parse("1.1e1"));
+assertEquals(11, JSON.parse("1.1e+1"));
+assertEquals(0.11, JSON.parse("1.1e-1"));
+assertEquals(11, JSON.parse("1.1E1"));
+assertEquals(11, JSON.parse("1.1E+1"));
+assertEquals(0.11, JSON.parse("1.1E-1"));
+
 assertEquals([], JSON.parse("[]"));
 assertEquals([1], JSON.parse("[1]"));
 assertEquals([1, "2", true, null], JSON.parse('[1, "2", true, null]'));
 
+assertEquals("", JSON.parse('""'));
+assertEquals(["", "", -0, ""], JSON.parse('[    ""  ,    ""  ,   -0,    ""]'));
+assertEquals("", JSON.parse('""'));
+
+
 function GetFilter(name) {
   function Filter(key, value) {
     return (key == name) ? undefined : value;
   }
   return Filter;
 }
 
 var pointJson = '{"x": 1, "y": 2}';
 assertEquals({'x': 1, 'y': 2}, JSON.parse(pointJson));
 assertEquals({'x': 1}, JSON.parse(pointJson, GetFilter('y')));
@@ skipping 18 matching lines @@
 
 TestInvalid('abcdef');
 TestInvalid('isNaN()');
 TestInvalid('{"x": [1, 2, deepObject]}');
 TestInvalid('[1, [2, [deepObject], 3], 4]');
 TestInvalid('function () { return 0; }');
 
 TestInvalid("[1, 2");
 TestInvalid('{"x": 3');
 
+// JavaScript number literals not valid in JSON.
+TestInvalid('[01]');
+TestInvalid('[.1]');
+TestInvalid('[1.]');
+TestInvalid('[1.e1]');
+TestInvalid('[-.1]');
+TestInvalid('[-1.]');
+
+// Plain invalid number literals.
+TestInvalid('-');
+TestInvalid('--1');
+TestInvalid('-1e');
+TestInvalid('1e--1]');
+TestInvalid('1e+-1');
+TestInvalid('1e-+1');
+TestInvalid('1e++1');
+
+// JavaScript string literals not valid in JSON.
+TestInvalid("'single quote'");
+TestInvalid('"\\a invalid escape"');
+TestInvalid('"\\x42 invalid escape"');
+TestInvalid('"\\u202 invalid escape"');
+TestInvalid('"\\012 invalid escape"');
+
+// Test bad JSON that would be good JavaScript (ES5).
+
+TestInvalid("{true:42}");
+TestInvalid("{false:42}");
+TestInvalid("{null:42}");
+TestInvalid("{'foo':42}");
+TestInvalid("{42:42}");
+TestInvalid("{0:42}");
+TestInvalid("{-1:42}");
+
+// Test for trailing garbage detection.
+
+TestInvalid('42 px');
+TestInvalid('42 .2');
+TestInvalid('"42" ""');
+TestInvalid('"42" ""');
+TestInvalid('"" ""');
+TestInvalid('true ""');
+TestInvalid('false ""');
+TestInvalid('null ""');
+TestInvalid('null ""');
+TestInvalid('[] ""');
+TestInvalid('[true] ""');
+TestInvalid('{} ""');
+TestInvalid('{"x":true} ""');
+
 // Stringify
 
 assertEquals("true", JSON.stringify(true));
 assertEquals("false", JSON.stringify(false));
 assertEquals("null", JSON.stringify(null));
 assertEquals("false", JSON.stringify({toJSON: function () { return false; }}));
 assertEquals("4", JSON.stringify(4));
 assertEquals('"foo"', JSON.stringify("foo"));
 assertEquals("null", JSON.stringify(Infinity));
 assertEquals("null", JSON.stringify(-Infinity));
@@ skipping 40 matching lines @@
 
 function checkIllegal(str) {
   assertThrows(function () { JSON.parse(str); }, SyntaxError);
 }
 
 checkIllegal('1); throw "foo"; (1');
 
 var x = 0;
 eval("(1); x++; (1)");
 checkIllegal('1); x++; (1');