Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame^] | 1 | // Copyright 2009 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | // Test that we match JSC in making some functions undeletable. |
| 29 | // See http://code.google.com/p/chromium/issues/detail?id=1717 |
| 30 | // The functions on these prototypes are not just undeletable. It is |
| 31 | // possible to override them with new definitions, then get the old |
| 32 | // version back by deleting the new definition. |
| 33 | |
| 34 | var array; |
| 35 | |
| 36 | array = [ |
| 37 | "toString", "toLocaleString", "join", "pop", "push", "concat", "reverse", |
| 38 | "shift", "unshift", "slice", "splice", "sort", "filter", "forEach", "some", |
| 39 | "every", "map", "indexOf", "lastIndexOf", "reduce", "reduceRight"]; |
| 40 | CheckJSCSemantics(Array.prototype, array, "Array prototype"); |
| 41 | |
| 42 | array = [ |
| 43 | "toString", "toDateString", "toTimeString", "toLocaleString", |
| 44 | "toLocaleDateString", "toLocaleTimeString", "valueOf", "getTime", |
| 45 | "getFullYear", "getUTCFullYear", "getMonth", "getUTCMonth", "getDate", |
| 46 | "getUTCDate", "getDay", "getUTCDay", "getHours", "getUTCHours", "getMinutes", |
| 47 | "getUTCMinutes", "getSeconds", "getUTCSeconds", "getMilliseconds", |
| 48 | "getUTCMilliseconds", "getTimezoneOffset", "setTime", "setMilliseconds", |
| 49 | "setUTCMilliseconds", "setSeconds", "setUTCSeconds", "setMinutes", |
| 50 | "setUTCMinutes", "setHours", "setUTCHours", "setDate", "setUTCDate", |
| 51 | "setMonth", "setUTCMonth", "setFullYear", "setUTCFullYear", "toGMTString", |
| 52 | "toUTCString", "getYear", "setYear", "toISOString", "toJSON"]; |
| 53 | CheckJSCSemantics(Date.prototype, array, "Date prototype"); |
| 54 | |
| 55 | array = [ |
| 56 | "random", "abs", "acos", "asin", "atan", "ceil", "cos", "exp", "floor", "log", |
| 57 | "round", "sin", "sqrt", "tan", "atan2", "pow", "max", "min"]; |
| 58 | CheckJSCSemantics(Math, array, "Math1"); |
| 59 | |
| 60 | CheckEcmaSemantics(Date, ["UTC", "parse", "now"], "Date"); |
| 61 | |
| 62 | array = [ |
| 63 | "E", "LN10", "LN2", "LOG2E", "LOG10E", "PI", "SQRT1_2", "SQRT2"]; |
| 64 | CheckDontDelete(Math, array, "Math2"); |
| 65 | |
| 66 | array = [ |
| 67 | "escape", "unescape", "decodeURI", "decodeURIComponent", "encodeURI", |
| 68 | "encodeURIComponent", "isNaN", "isFinite", "parseInt", "parseFloat", "eval", |
| 69 | "execScript"]; |
| 70 | CheckEcmaSemantics(this, array, "Global"); |
| 71 | CheckReadOnlyAttr(this, "Infinity"); |
| 72 | |
| 73 | array = ["exec", "test", "toString", "compile"]; |
| 74 | CheckEcmaSemantics(RegExp.prototype, array, "RegExp prototype"); |
| 75 | |
| 76 | array = [ |
| 77 | "toString", "toLocaleString", "valueOf", "hasOwnProperty", |
| 78 | "isPrototypeOf", "propertyIsEnumerable", "__defineGetter__", |
| 79 | "__lookupGetter__", "__defineSetter__", "__lookupSetter__"]; |
| 80 | CheckEcmaSemantics(Object.prototype, array, "Object prototype"); |
| 81 | |
| 82 | array = [ |
| 83 | "toString", "valueOf", "toJSON"]; |
| 84 | CheckEcmaSemantics(Boolean.prototype, array, "Boolean prototype"); |
| 85 | |
| 86 | array = [ |
| 87 | "toString", "toLocaleString", "valueOf", "toFixed", "toExponential", |
| 88 | "toPrecision", "toJSON"]; |
| 89 | CheckEcmaSemantics(Number.prototype, array, "Number prototype"); |
| 90 | |
| 91 | CheckEcmaSemantics(Function.prototype, ["toString"], "Function prototype"); |
| 92 | CheckEcmaSemantics(Date.prototype, ["constructor"], "Date prototype constructor"); |
| 93 | |
| 94 | array = [ |
| 95 | "charAt", "charCodeAt", "concat", "indexOf", |
| 96 | "lastIndexOf", "localeCompare", "match", "replace", "search", "slice", |
| 97 | "split", "substring", "substr", "toLowerCase", "toLocaleLowerCase", |
| 98 | "toUpperCase", "toLocaleUpperCase", "link", "anchor", "fontcolor", "fontsize", |
| 99 | "big", "blink", "bold", "fixed", "italics", "small", "strike", "sub", "sup", |
| 100 | "toJSON", "toString", "valueOf"]; |
| 101 | CheckJSCSemantics(String.prototype, array, "String prototype"); |
| 102 | CheckEcmaSemantics(String, ["fromCharCode"], "String"); |
| 103 | |
| 104 | |
| 105 | function CheckEcmaSemantics(type, props, name) { |
| 106 | print(name); |
| 107 | for (var i = 0; i < props.length; i++) { |
| 108 | CheckDeletable(type, props[i]); |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | |
| 113 | function CheckJSCSemantics(type, props, name) { |
| 114 | print(name); |
| 115 | for (var i = 0; i < props.length; i++) { |
| 116 | CheckNotDeletable(type, props[i]); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | |
| 121 | function CheckDontDelete(type, props, name) { |
| 122 | print(name); |
| 123 | for (var i = 0; i < props.length; i++) { |
| 124 | CheckDontDeleteAttr(type, props[i]); |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | |
| 129 | function CheckDeletable(type, prop) { |
| 130 | var old = type[prop]; |
| 131 | var hasOwnProperty = Object.prototype.hasOwnProperty; |
| 132 | if (!type[prop]) return; |
| 133 | assertTrue(type.hasOwnProperty(prop), "inherited: " + prop); |
| 134 | var deleted = delete type[prop]; |
| 135 | assertTrue(deleted, "delete operator returned false: " + prop); |
| 136 | assertFalse(hasOwnProperty.call(type, prop), "still there after delete: " + prop); |
| 137 | type[prop] = "foo"; |
| 138 | assertEquals("foo", type[prop], "not overwritable: " + prop); |
| 139 | type[prop] = old; |
| 140 | } |
| 141 | |
| 142 | |
| 143 | function CheckNotDeletable(type, prop) { |
| 144 | var old = type[prop]; |
| 145 | if (!type[prop]) return; |
| 146 | assertTrue(type.hasOwnProperty(prop), "inherited: " + prop); |
| 147 | var deleted = delete type[prop]; |
| 148 | assertTrue(deleted, "delete operator returned false: " + prop); |
| 149 | assertTrue(type.hasOwnProperty(prop), "not there after delete: " + prop); |
| 150 | type[prop] = "foo"; |
| 151 | assertEquals("foo", type[prop], "not overwritable: " + prop); |
| 152 | deleted = delete type[prop]; |
| 153 | assertTrue(deleted, "delete operator returned false 2nd time: " + prop); |
| 154 | assertEquals(old.toString(), type[prop].toString(), "delete didn't restore the old value: " + prop); |
| 155 | } |
| 156 | |
| 157 | |
| 158 | function CheckDontDeleteAttr(type, prop) { |
| 159 | var old = type[prop]; |
| 160 | if (!type[prop]) return; |
| 161 | assertTrue(type.hasOwnProperty(prop), "inherited: " + prop); |
| 162 | var deleted = delete type[prop]; |
| 163 | assertFalse(deleted, "delete operator returned true: " + prop); |
| 164 | assertTrue(type.hasOwnProperty(prop), "not there after delete: " + prop); |
| 165 | type[prop] = "foo"; |
| 166 | assertFalse("foo" == type[prop], "overwritable: " + prop); |
| 167 | } |
| 168 | |
| 169 | |
| 170 | function CheckReadOnlyAttr(type, prop) { |
| 171 | var old = type[prop]; |
| 172 | if (!type[prop]) return; |
| 173 | assertTrue(type.hasOwnProperty(prop), "inherited: " + prop); |
| 174 | var deleted = delete type[prop]; |
| 175 | assertFalse(deleted, "delete operator returned true: " + prop); |
| 176 | assertTrue(type.hasOwnProperty(prop), "not there after delete: " + prop); |
| 177 | type[prop] = "foo"; |
| 178 | assertEquals("foo", type[prop], "overwritable: " + prop); |
| 179 | } |
| 180 | |
| 181 | print("OK"); |