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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/v8.h" | 5 #include "src/v8.h" |
| 6 | 6 |
| 7 #include "src/accessors.h" | 7 #include "src/accessors.h" |
| 8 #include "src/api.h" | 8 #include "src/api.h" |
| 9 #include "src/arguments.h" | 9 #include "src/arguments.h" |
| 10 #include "src/base/bits.h" | 10 #include "src/base/bits.h" |
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| 655 Handle<Object> result; | 655 Handle<Object> result; |
| 656 ASSIGN_RETURN_ON_EXCEPTION( | 656 ASSIGN_RETURN_ON_EXCEPTION( |
| 657 isolate(), result, | 657 isolate(), result, |
| 658 Runtime::GetElementOrCharAt(isolate(), object, index), Object); | 658 Runtime::GetElementOrCharAt(isolate(), object, index), Object); |
| 659 return result; | 659 return result; |
| 660 } | 660 } |
| 661 | 661 |
| 662 bool use_ic = MigrateDeprecated(object) ? false : FLAG_use_ic; | 662 bool use_ic = MigrateDeprecated(object) ? false : FLAG_use_ic; |
| 663 | 663 |
| 664 if (FLAG_harmony_scoping && object->IsGlobalObject() && name->IsString()) { | 664 if (FLAG_harmony_scoping && object->IsGlobalObject() && name->IsString()) { |
| 665 // Look up in global context table. | 665 // Look up in script context table. |
| 666 Handle<String> str_name = Handle<String>::cast(name); | 666 Handle<String> str_name = Handle<String>::cast(name); |
| 667 Handle<GlobalObject> global = Handle<GlobalObject>::cast(object); | 667 Handle<GlobalObject> global = Handle<GlobalObject>::cast(object); |
| 668 Handle<GlobalContextTable> global_contexts( | 668 Handle<ScriptContextTable> script_contexts( |
| 669 global->native_context()->global_context_table()); | 669 global->native_context()->script_context_table()); |
| 670 | 670 |
| 671 GlobalContextTable::LookupResult lookup_result; | 671 ScriptContextTable::LookupResult lookup_result; |
| 672 if (GlobalContextTable::Lookup(global_contexts, str_name, &lookup_result)) { | 672 if (ScriptContextTable::Lookup(script_contexts, str_name, &lookup_result)) { |
| 673 if (use_ic && LoadGlobalContextFieldStub::Accepted(&lookup_result)) { | 673 if (use_ic && LoadScriptContextFieldStub::Accepted(&lookup_result)) { |
| 674 LoadGlobalContextFieldStub stub(isolate(), &lookup_result); | 674 LoadScriptContextFieldStub stub(isolate(), &lookup_result); |
| 675 PatchCache(name, stub.GetCode()); | 675 PatchCache(name, stub.GetCode()); |
| 676 } | 676 } |
| 677 return FixedArray::get(GlobalContextTable::GetContext( | 677 return FixedArray::get(ScriptContextTable::GetContext( |
| 678 global_contexts, lookup_result.context_index), | 678 script_contexts, lookup_result.context_index), |
| 679 lookup_result.slot_index); | 679 lookup_result.slot_index); |
| 680 } | 680 } |
| 681 } | 681 } |
| 682 | 682 |
| 683 // Named lookup in the object. | 683 // Named lookup in the object. |
| 684 LookupIterator it(object, name); | 684 LookupIterator it(object, name); |
| 685 LookupForRead(&it); | 685 LookupForRead(&it); |
| 686 | 686 |
| 687 if (it.IsFound() || !IsUndeclaredGlobal(object)) { | 687 if (it.IsFound() || !IsUndeclaredGlobal(object)) { |
| 688 // Update inline cache and stub cache. | 688 // Update inline cache and stub cache. |
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| 1376 | 1376 |
| 1377 it->PrepareTransitionToDataProperty(value, NONE, store_mode); | 1377 it->PrepareTransitionToDataProperty(value, NONE, store_mode); |
| 1378 return it->IsCacheableTransition(); | 1378 return it->IsCacheableTransition(); |
| 1379 } | 1379 } |
| 1380 | 1380 |
| 1381 | 1381 |
| 1382 MaybeHandle<Object> StoreIC::Store(Handle<Object> object, Handle<Name> name, | 1382 MaybeHandle<Object> StoreIC::Store(Handle<Object> object, Handle<Name> name, |
| 1383 Handle<Object> value, | 1383 Handle<Object> value, |
| 1384 JSReceiver::StoreFromKeyed store_mode) { | 1384 JSReceiver::StoreFromKeyed store_mode) { |
| 1385 if (FLAG_harmony_scoping && object->IsGlobalObject() && name->IsString()) { | 1385 if (FLAG_harmony_scoping && object->IsGlobalObject() && name->IsString()) { |
| 1386 // Look up in global context table. | 1386 // Look up in script context table. |
| 1387 Handle<String> str_name = Handle<String>::cast(name); | 1387 Handle<String> str_name = Handle<String>::cast(name); |
| 1388 Handle<GlobalObject> global = Handle<GlobalObject>::cast(object); | 1388 Handle<GlobalObject> global = Handle<GlobalObject>::cast(object); |
| 1389 Handle<GlobalContextTable> global_contexts( | 1389 Handle<ScriptContextTable> script_contexts( |
| 1390 global->native_context()->global_context_table()); | 1390 global->native_context()->script_context_table()); |
| 1391 | 1391 |
| 1392 GlobalContextTable::LookupResult lookup_result; | 1392 ScriptContextTable::LookupResult lookup_result; |
| 1393 if (GlobalContextTable::Lookup(global_contexts, str_name, &lookup_result)) { | 1393 if (ScriptContextTable::Lookup(script_contexts, str_name, &lookup_result)) { |
| 1394 Handle<Context> global_context = GlobalContextTable::GetContext( | 1394 Handle<Context> script_context = ScriptContextTable::GetContext( |
| 1395 global_contexts, lookup_result.context_index); | 1395 script_contexts, lookup_result.context_index); |
| 1396 if (lookup_result.mode == CONST) { | 1396 if (lookup_result.mode == CONST) { |
| 1397 return TypeError("harmony_const_assign", object, name); | 1397 return TypeError("harmony_const_assign", object, name); |
| 1398 } | 1398 } |
| 1399 | 1399 |
| 1400 if (FLAG_use_ic && | 1400 if (FLAG_use_ic && |
| 1401 StoreGlobalContextFieldStub::Accepted(&lookup_result)) { | 1401 StoreScriptContextFieldStub::Accepted(&lookup_result)) { |
| 1402 StoreGlobalContextFieldStub stub(isolate(), &lookup_result); | 1402 StoreScriptContextFieldStub stub(isolate(), &lookup_result); |
| 1403 PatchCache(name, stub.GetCode()); | 1403 PatchCache(name, stub.GetCode()); |
| 1404 } | 1404 } |
| 1405 | 1405 |
| 1406 global_context->set(lookup_result.slot_index, *value); | 1406 script_context->set(lookup_result.slot_index, *value); |
| 1407 return value; | 1407 return value; |
| 1408 } | 1408 } |
| 1409 } | 1409 } |
| 1410 | 1410 |
| 1411 // TODO(verwaest): Let SetProperty do the migration, since storing a property | 1411 // TODO(verwaest): Let SetProperty do the migration, since storing a property |
| 1412 // might deprecate the current map again, if value does not fit. | 1412 // might deprecate the current map again, if value does not fit. |
| 1413 if (MigrateDeprecated(object) || object->IsJSProxy()) { | 1413 if (MigrateDeprecated(object) || object->IsJSProxy()) { |
| 1414 Handle<Object> result; | 1414 Handle<Object> result; |
| 1415 ASSIGN_RETURN_ON_EXCEPTION( | 1415 ASSIGN_RETURN_ON_EXCEPTION( |
| 1416 isolate(), result, | 1416 isolate(), result, |
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| 2781 static const Address IC_utilities[] = { | 2781 static const Address IC_utilities[] = { |
| 2782 #define ADDR(name) FUNCTION_ADDR(name), | 2782 #define ADDR(name) FUNCTION_ADDR(name), |
| 2783 IC_UTIL_LIST(ADDR) NULL | 2783 IC_UTIL_LIST(ADDR) NULL |
| 2784 #undef ADDR | 2784 #undef ADDR |
| 2785 }; | 2785 }; |
| 2786 | 2786 |
| 2787 | 2787 |
| 2788 Address IC::AddressFromUtilityId(IC::UtilityId id) { return IC_utilities[id]; } | 2788 Address IC::AddressFromUtilityId(IC::UtilityId id) { return IC_utilities[id]; } |
| 2789 } | 2789 } |
| 2790 } // namespace v8::internal | 2790 } // namespace v8::internal |
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