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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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1307 return current; | 1307 return current; |
1308 } | 1308 } |
1309 | 1309 |
1310 // ES5, 15.4.3.2 | 1310 // ES5, 15.4.3.2 |
1311 function ArrayIsArray(obj) { | 1311 function ArrayIsArray(obj) { |
1312 return IS_ARRAY(obj); | 1312 return IS_ARRAY(obj); |
1313 } | 1313 } |
1314 | 1314 |
1315 | 1315 |
1316 // ------------------------------------------------------------------- | 1316 // ------------------------------------------------------------------- |
1317 function SetUpArray() { | 1317 function SetupArray() { |
1318 %CheckIsBootstrapping(); | 1318 // Setup non-enumerable constructor property on the Array.prototype |
1319 // Set up non-enumerable constructor property on the Array.prototype | |
1320 // object. | 1319 // object. |
1321 %SetProperty($Array.prototype, "constructor", $Array, DONT_ENUM); | 1320 %SetProperty($Array.prototype, "constructor", $Array, DONT_ENUM); |
1322 | 1321 |
1323 // Set up non-enumerable functions on the Array object. | 1322 // Setup non-enumerable functions on the Array object. |
1324 InstallFunctions($Array, DONT_ENUM, $Array( | 1323 InstallFunctions($Array, DONT_ENUM, $Array( |
1325 "isArray", ArrayIsArray | 1324 "isArray", ArrayIsArray |
1326 )); | 1325 )); |
1327 | 1326 |
1328 var specialFunctions = %SpecialArrayFunctions({}); | 1327 var specialFunctions = %SpecialArrayFunctions({}); |
1329 | 1328 |
1330 function getFunction(name, jsBuiltin, len) { | 1329 function getFunction(name, jsBuiltin, len) { |
1331 var f = jsBuiltin; | 1330 var f = jsBuiltin; |
1332 if (specialFunctions.hasOwnProperty(name)) { | 1331 if (specialFunctions.hasOwnProperty(name)) { |
1333 f = specialFunctions[name]; | 1332 f = specialFunctions[name]; |
1334 } | 1333 } |
1335 if (!IS_UNDEFINED(len)) { | 1334 if (!IS_UNDEFINED(len)) { |
1336 %FunctionSetLength(f, len); | 1335 %FunctionSetLength(f, len); |
1337 } | 1336 } |
1338 return f; | 1337 return f; |
1339 } | 1338 } |
1340 | 1339 |
1341 // Set up non-enumerable functions of the Array.prototype object and | 1340 // Setup non-enumerable functions of the Array.prototype object and |
1342 // set their names. | 1341 // set their names. |
1343 // Manipulate the length of some of the functions to meet | 1342 // Manipulate the length of some of the functions to meet |
1344 // expectations set by ECMA-262 or Mozilla. | 1343 // expectations set by ECMA-262 or Mozilla. |
1345 InstallFunctionsOnHiddenPrototype($Array.prototype, DONT_ENUM, $Array( | 1344 InstallFunctionsOnHiddenPrototype($Array.prototype, DONT_ENUM, $Array( |
1346 "toString", getFunction("toString", ArrayToString), | 1345 "toString", getFunction("toString", ArrayToString), |
1347 "toLocaleString", getFunction("toLocaleString", ArrayToLocaleString), | 1346 "toLocaleString", getFunction("toLocaleString", ArrayToLocaleString), |
1348 "join", getFunction("join", ArrayJoin), | 1347 "join", getFunction("join", ArrayJoin), |
1349 "pop", getFunction("pop", ArrayPop), | 1348 "pop", getFunction("pop", ArrayPop), |
1350 "push", getFunction("push", ArrayPush, 1), | 1349 "push", getFunction("push", ArrayPush, 1), |
1351 "concat", getFunction("concat", ArrayConcat, 1), | 1350 "concat", getFunction("concat", ArrayConcat, 1), |
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1362 "map", getFunction("map", ArrayMap, 1), | 1361 "map", getFunction("map", ArrayMap, 1), |
1363 "indexOf", getFunction("indexOf", ArrayIndexOf, 1), | 1362 "indexOf", getFunction("indexOf", ArrayIndexOf, 1), |
1364 "lastIndexOf", getFunction("lastIndexOf", ArrayLastIndexOf, 1), | 1363 "lastIndexOf", getFunction("lastIndexOf", ArrayLastIndexOf, 1), |
1365 "reduce", getFunction("reduce", ArrayReduce, 1), | 1364 "reduce", getFunction("reduce", ArrayReduce, 1), |
1366 "reduceRight", getFunction("reduceRight", ArrayReduceRight, 1) | 1365 "reduceRight", getFunction("reduceRight", ArrayReduceRight, 1) |
1367 )); | 1366 )); |
1368 | 1367 |
1369 %FinishArrayPrototypeSetup($Array.prototype); | 1368 %FinishArrayPrototypeSetup($Array.prototype); |
1370 | 1369 |
1371 // The internal Array prototype doesn't need to be fancy, since it's never | 1370 // The internal Array prototype doesn't need to be fancy, since it's never |
1372 // exposed to user code. | 1371 // exposed to user code, so no hidden prototypes or DONT_ENUM attributes |
1373 // Adding only the functions that are actually used. | 1372 // are necessary. |
1374 SetUpLockedPrototype(InternalArray, $Array(), $Array( | 1373 // The null __proto__ ensures that we never inherit any user created |
1375 "join", getFunction("join", ArrayJoin), | 1374 // getters or setters from, e.g., Object.prototype. |
1376 "pop", getFunction("pop", ArrayPop), | 1375 InternalArray.prototype.__proto__ = null; |
1377 "push", getFunction("push", ArrayPush) | 1376 // Adding only the functions that are actually used, and a toString. |
1378 )); | 1377 InternalArray.prototype.join = getFunction("join", ArrayJoin); |
| 1378 InternalArray.prototype.pop = getFunction("pop", ArrayPop); |
| 1379 InternalArray.prototype.push = getFunction("push", ArrayPush); |
| 1380 InternalArray.prototype.toString = function() { |
| 1381 return "Internal Array, length " + this.length; |
| 1382 }; |
1379 } | 1383 } |
1380 | 1384 |
1381 SetUpArray(); | 1385 |
| 1386 SetupArray(); |
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