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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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1318 HandleScope scope; | 1318 HandleScope scope; |
1319 ASSERT(args.length() == 1); | 1319 ASSERT(args.length() == 1); |
1320 CONVERT_ARG_CHECKED(JSArray, prototype, 0); | 1320 CONVERT_ARG_CHECKED(JSArray, prototype, 0); |
1321 // This is necessary to enable fast checks for absence of elements | 1321 // This is necessary to enable fast checks for absence of elements |
1322 // on Array.prototype and below. | 1322 // on Array.prototype and below. |
1323 prototype->set_elements(Heap::empty_fixed_array()); | 1323 prototype->set_elements(Heap::empty_fixed_array()); |
1324 return Smi::FromInt(0); | 1324 return Smi::FromInt(0); |
1325 } | 1325 } |
1326 | 1326 |
1327 | 1327 |
1328 static void SetCustomCallGenerator(Handle<JSFunction> function, | |
1329 ExternalReference* generator) { | |
1330 if (function->shared()->function_data()->IsUndefined()) { | |
1331 function->shared()->set_function_data(*FromCData(generator->address())); | |
1332 } | |
1333 } | |
1334 | |
1335 | |
1336 static Handle<JSFunction> InstallBuiltin(Handle<JSObject> holder, | 1328 static Handle<JSFunction> InstallBuiltin(Handle<JSObject> holder, |
1337 const char* name, | 1329 const char* name, |
1338 Builtins::Name builtin_name, | 1330 Builtins::Name builtin_name) { |
1339 ExternalReference* generator = NULL) { | |
1340 Handle<String> key = Factory::LookupAsciiSymbol(name); | 1331 Handle<String> key = Factory::LookupAsciiSymbol(name); |
1341 Handle<Code> code(Builtins::builtin(builtin_name)); | 1332 Handle<Code> code(Builtins::builtin(builtin_name)); |
1342 Handle<JSFunction> optimized = Factory::NewFunction(key, | 1333 Handle<JSFunction> optimized = Factory::NewFunction(key, |
1343 JS_OBJECT_TYPE, | 1334 JS_OBJECT_TYPE, |
1344 JSObject::kHeaderSize, | 1335 JSObject::kHeaderSize, |
1345 code, | 1336 code, |
1346 false); | 1337 false); |
1347 optimized->shared()->DontAdaptArguments(); | 1338 optimized->shared()->DontAdaptArguments(); |
1348 if (generator != NULL) { | |
1349 SetCustomCallGenerator(optimized, generator); | |
1350 } | |
1351 SetProperty(holder, key, optimized, NONE); | 1339 SetProperty(holder, key, optimized, NONE); |
1352 return optimized; | 1340 return optimized; |
1353 } | 1341 } |
1354 | 1342 |
1355 | 1343 |
1356 Object* CompileArrayPushCall(CallStubCompiler* compiler, | |
1357 Object* object, | |
1358 JSObject* holder, | |
1359 JSFunction* function, | |
1360 String* name, | |
1361 StubCompiler::CheckType check) { | |
1362 return compiler->CompileArrayPushCall(object, holder, function, name, check); | |
1363 } | |
1364 | |
1365 | |
1366 Object* CompileArrayPopCall(CallStubCompiler* compiler, | |
1367 Object* object, | |
1368 JSObject* holder, | |
1369 JSFunction* function, | |
1370 String* name, | |
1371 StubCompiler::CheckType check) { | |
1372 return compiler->CompileArrayPopCall(object, holder, function, name, check); | |
1373 } | |
1374 | |
1375 | |
1376 static Object* Runtime_SpecialArrayFunctions(Arguments args) { | 1344 static Object* Runtime_SpecialArrayFunctions(Arguments args) { |
1377 HandleScope scope; | 1345 HandleScope scope; |
1378 ASSERT(args.length() == 1); | 1346 ASSERT(args.length() == 1); |
1379 CONVERT_ARG_CHECKED(JSObject, holder, 0); | 1347 CONVERT_ARG_CHECKED(JSObject, holder, 0); |
1380 | 1348 |
1381 ExternalReference pop = ExternalReference::compile_array_pop_call(); | 1349 InstallBuiltin(holder, "pop", Builtins::ArrayPop); |
1382 ExternalReference push = ExternalReference::compile_array_push_call(); | 1350 InstallBuiltin(holder, "push", Builtins::ArrayPush); |
1383 | |
1384 InstallBuiltin(holder, "pop", Builtins::ArrayPop, &pop); | |
1385 InstallBuiltin(holder, "push", Builtins::ArrayPush, &push); | |
1386 InstallBuiltin(holder, "shift", Builtins::ArrayShift); | 1351 InstallBuiltin(holder, "shift", Builtins::ArrayShift); |
1387 InstallBuiltin(holder, "unshift", Builtins::ArrayUnshift); | 1352 InstallBuiltin(holder, "unshift", Builtins::ArrayUnshift); |
1388 InstallBuiltin(holder, "slice", Builtins::ArraySlice); | 1353 InstallBuiltin(holder, "slice", Builtins::ArraySlice); |
1389 InstallBuiltin(holder, "splice", Builtins::ArraySplice); | 1354 InstallBuiltin(holder, "splice", Builtins::ArraySplice); |
1390 InstallBuiltin(holder, "concat", Builtins::ArrayConcat); | 1355 InstallBuiltin(holder, "concat", Builtins::ArrayConcat); |
1391 | 1356 |
1392 return *holder; | 1357 return *holder; |
1393 } | 1358 } |
1394 | 1359 |
1395 | 1360 |
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10264 } else { | 10229 } else { |
10265 // Handle last resort GC and make sure to allow future allocations | 10230 // Handle last resort GC and make sure to allow future allocations |
10266 // to grow the heap without causing GCs (if possible). | 10231 // to grow the heap without causing GCs (if possible). |
10267 Counters::gc_last_resort_from_js.Increment(); | 10232 Counters::gc_last_resort_from_js.Increment(); |
10268 Heap::CollectAllGarbage(false); | 10233 Heap::CollectAllGarbage(false); |
10269 } | 10234 } |
10270 } | 10235 } |
10271 | 10236 |
10272 | 10237 |
10273 } } // namespace v8::internal | 10238 } } // namespace v8::internal |
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