1 // Copyright 2009 the V8 project authors. All rights reserved.
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3 // modification, are permitted provided that the following conditions are
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26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 // Test that we match ECMAScript in making most builtin functions
29 // deletable and only specific ones undeletable or read-only.
34 "toString", "toLocaleString", "join", "pop", "push", "concat", "reverse",
35 "shift", "unshift", "slice", "splice", "sort", "filter", "forEach", "some",
36 "every", "map", "indexOf", "lastIndexOf", "reduce", "reduceRight"];
37 CheckEcmaSemantics(Array.prototype, array, "Array prototype");
39 var old_Array_prototype = Array.prototype;
40 var new_Array_prototype = {};
41 for (var i = 0; i < 7; i++) {
42 Array.prototype = new_Array_prototype;
43 assertEquals(old_Array_prototype, Array.prototype);
47 "toString", "toDateString", "toTimeString", "toLocaleString",
48 "toLocaleDateString", "toLocaleTimeString", "valueOf", "getTime",
49 "getFullYear", "getUTCFullYear", "getMonth", "getUTCMonth", "getDate",
50 "getUTCDate", "getDay", "getUTCDay", "getHours", "getUTCHours", "getMinutes",
51 "getUTCMinutes", "getSeconds", "getUTCSeconds", "getMilliseconds",
52 "getUTCMilliseconds", "getTimezoneOffset", "setTime", "setMilliseconds",
53 "setUTCMilliseconds", "setSeconds", "setUTCSeconds", "setMinutes",
54 "setUTCMinutes", "setHours", "setUTCHours", "setDate", "setUTCDate",
55 "setMonth", "setUTCMonth", "setFullYear", "setUTCFullYear", "toGMTString",
56 "toUTCString", "getYear", "setYear", "toISOString", "toJSON"];
57 CheckEcmaSemantics(Date.prototype, array, "Date prototype");
60 "random", "abs", "acos", "asin", "atan", "ceil", "cos", "exp", "floor", "log",
61 "round", "sin", "sqrt", "tan", "atan2", "pow", "max", "min"];
62 CheckEcmaSemantics(Math, array, "Math1");
64 CheckEcmaSemantics(Date, ["UTC", "parse", "now"], "Date");
67 "E", "LN10", "LN2", "LOG2E", "LOG10E", "PI", "SQRT1_2", "SQRT2"];
68 CheckDontDelete(Math, array, "Math2");
71 "escape", "unescape", "decodeURI", "decodeURIComponent", "encodeURI",
72 "encodeURIComponent", "isNaN", "isFinite", "parseInt", "parseFloat", "eval",
74 CheckEcmaSemantics(this, array, "Global");
75 CheckReadOnlyAttr(this, "Infinity");
76 CheckReadOnlyAttr(this, "NaN");
77 CheckReadOnlyAttr(this, "undefined");
79 array = ["exec", "test", "toString", "compile"];
80 CheckEcmaSemantics(RegExp.prototype, array, "RegExp prototype");
83 "toString", "toLocaleString", "valueOf", "hasOwnProperty",
84 "isPrototypeOf", "propertyIsEnumerable", "__defineGetter__",
85 "__lookupGetter__", "__defineSetter__", "__lookupSetter__"];
86 CheckEcmaSemantics(Object.prototype, array, "Object prototype");
88 var old_Object_prototype = Object.prototype;
89 var new_Object_prototype = {};
90 for (var i = 0; i < 7; i++) {
91 Object.prototype = new_Object_prototype;
92 assertEquals(old_Object_prototype, Object.prototype);
96 "toString", "valueOf", "toJSON"];
97 CheckEcmaSemantics(Boolean.prototype, array, "Boolean prototype");
100 "toString", "toLocaleString", "valueOf", "toFixed", "toExponential",
101 "toPrecision", "toJSON"];
102 CheckEcmaSemantics(Number.prototype, array, "Number prototype");
104 CheckEcmaSemantics(Function.prototype, ["toString"], "Function prototype");
105 CheckEcmaSemantics(Date.prototype, ["constructor"], "Date prototype constructor");
108 "charAt", "charCodeAt", "concat", "indexOf",
109 "lastIndexOf", "localeCompare", "match", "replace", "search", "slice",
110 "split", "substring", "substr", "toLowerCase", "toLocaleLowerCase",
111 "toUpperCase", "toLocaleUpperCase", "link", "anchor", "fontcolor", "fontsize",
112 "big", "blink", "bold", "fixed", "italics", "small", "strike", "sub", "sup",
113 "toJSON", "toString", "valueOf"];
114 CheckEcmaSemantics(String.prototype, array, "String prototype");
115 CheckEcmaSemantics(String, ["fromCharCode"], "String");
118 function CheckEcmaSemantics(type, props, name) {
120 for (var i = 0; i < props.length; i++) {
121 CheckDeletable(type, props[i]);
126 function CheckDontDelete(type, props, name) {
128 for (var i = 0; i < props.length; i++) {
129 CheckDontDeleteAttr(type, props[i]);
134 function CheckDeletable(type, prop) {
135 var old = type[prop];
136 var hasOwnProperty = Object.prototype.hasOwnProperty;
137 if (!type[prop]) return;
138 assertTrue(type.hasOwnProperty(prop), "inherited: " + prop);
139 var deleted = delete type[prop];
140 assertTrue(deleted, "delete operator returned false: " + prop);
141 assertFalse(hasOwnProperty.call(type, prop), "still there after delete: " + prop);
143 assertEquals("foo", type[prop], "not overwritable: " + prop);
148 function CheckDontDeleteAttr(type, prop) {
149 var old = type[prop];
150 if (!type[prop]) return;
151 assertTrue(type.hasOwnProperty(prop), "inherited: " + prop);
152 var deleted = delete type[prop];
153 assertFalse(deleted, "delete operator returned true: " + prop);
154 assertTrue(type.hasOwnProperty(prop), "not there after delete: " + prop);
156 assertFalse("foo" == type[prop], "overwritable: " + prop);
160 function CheckReadOnlyAttr(type, prop) {
161 var old = type[prop];
162 if (!type[prop]) return;
163 assertTrue(type.hasOwnProperty(prop), "inherited: " + prop);
164 var deleted = delete type[prop];
165 assertFalse(deleted, "delete operator returned true: " + prop);
166 assertTrue(type.hasOwnProperty(prop), "not there after delete: " + prop);
168 assertEquals(old, type[prop], "overwritable: " + prop);