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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/ic/ic.h" | 5 #include "src/ic/ic.h" |
| 6 | 6 |
| 7 #include "src/accessors.h" | 7 #include "src/accessors.h" |
| 8 #include "src/api-arguments-inl.h" | 8 #include "src/api-arguments-inl.h" |
| 9 #include "src/api.h" | 9 #include "src/api.h" |
| 10 #include "src/arguments.h" | 10 #include "src/arguments.h" |
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| 298 } | 298 } |
| 299 | 299 |
| 300 return true; | 300 return true; |
| 301 } | 301 } |
| 302 | 302 |
| 303 | 303 |
| 304 void IC::UpdateState(Handle<Object> receiver, Handle<Object> name) { | 304 void IC::UpdateState(Handle<Object> receiver, Handle<Object> name) { |
| 305 update_receiver_map(receiver); | 305 update_receiver_map(receiver); |
| 306 if (!name->IsString()) return; | 306 if (!name->IsString()) return; |
| 307 if (state() != MONOMORPHIC && state() != POLYMORPHIC) return; | 307 if (state() != MONOMORPHIC && state() != POLYMORPHIC) return; |
| 308 if (receiver->IsUndefined(isolate()) || receiver->IsNull()) return; | 308 if (receiver->IsUndefined(isolate()) || receiver->IsNull(isolate())) return; |
| 309 | 309 |
| 310 // Remove the target from the code cache if it became invalid | 310 // Remove the target from the code cache if it became invalid |
| 311 // because of changes in the prototype chain to avoid hitting it | 311 // because of changes in the prototype chain to avoid hitting it |
| 312 // again. | 312 // again. |
| 313 if (ShouldRecomputeHandler(receiver, Handle<String>::cast(name))) { | 313 if (ShouldRecomputeHandler(receiver, Handle<String>::cast(name))) { |
| 314 MarkRecomputeHandler(name); | 314 MarkRecomputeHandler(name); |
| 315 } | 315 } |
| 316 } | 316 } |
| 317 | 317 |
| 318 | 318 |
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| 582 nexus->ConfigurePolymorphic(maps, transitioned_maps, handlers); | 582 nexus->ConfigurePolymorphic(maps, transitioned_maps, handlers); |
| 583 | 583 |
| 584 vector_set_ = true; | 584 vector_set_ = true; |
| 585 OnTypeFeedbackChanged(isolate(), get_host()); | 585 OnTypeFeedbackChanged(isolate(), get_host()); |
| 586 } | 586 } |
| 587 | 587 |
| 588 | 588 |
| 589 MaybeHandle<Object> LoadIC::Load(Handle<Object> object, Handle<Name> name) { | 589 MaybeHandle<Object> LoadIC::Load(Handle<Object> object, Handle<Name> name) { |
| 590 // If the object is undefined or null it's illegal to try to get any | 590 // If the object is undefined or null it's illegal to try to get any |
| 591 // of its properties; throw a TypeError in that case. | 591 // of its properties; throw a TypeError in that case. |
| 592 if (object->IsUndefined(isolate()) || object->IsNull()) { | 592 if (object->IsUndefined(isolate()) || object->IsNull(isolate())) { |
| 593 return TypeError(MessageTemplate::kNonObjectPropertyLoad, object, name); | 593 return TypeError(MessageTemplate::kNonObjectPropertyLoad, object, name); |
| 594 } | 594 } |
| 595 | 595 |
| 596 // Check if the name is trivially convertible to an index and get | 596 // Check if the name is trivially convertible to an index and get |
| 597 // the element or char if so. | 597 // the element or char if so. |
| 598 uint32_t index; | 598 uint32_t index; |
| 599 if (kind() == Code::KEYED_LOAD_IC && name->AsArrayIndex(&index)) { | 599 if (kind() == Code::KEYED_LOAD_IC && name->AsArrayIndex(&index)) { |
| 600 // Rewrite to the generic keyed load stub. | 600 // Rewrite to the generic keyed load stub. |
| 601 if (FLAG_use_ic) { | 601 if (FLAG_use_ic) { |
| 602 DCHECK(UseVector()); | 602 DCHECK(UseVector()); |
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| 1519 if (MigrateDeprecated(object) || object->IsJSProxy()) { | 1519 if (MigrateDeprecated(object) || object->IsJSProxy()) { |
| 1520 Handle<Object> result; | 1520 Handle<Object> result; |
| 1521 ASSIGN_RETURN_ON_EXCEPTION( | 1521 ASSIGN_RETURN_ON_EXCEPTION( |
| 1522 isolate(), result, | 1522 isolate(), result, |
| 1523 Object::SetProperty(object, name, value, language_mode()), Object); | 1523 Object::SetProperty(object, name, value, language_mode()), Object); |
| 1524 return result; | 1524 return result; |
| 1525 } | 1525 } |
| 1526 | 1526 |
| 1527 // If the object is undefined or null it's illegal to try to set any | 1527 // If the object is undefined or null it's illegal to try to set any |
| 1528 // properties on it; throw a TypeError in that case. | 1528 // properties on it; throw a TypeError in that case. |
| 1529 if (object->IsUndefined(isolate()) || object->IsNull()) { | 1529 if (object->IsUndefined(isolate()) || object->IsNull(isolate())) { |
| 1530 return TypeError(MessageTemplate::kNonObjectPropertyStore, object, name); | 1530 return TypeError(MessageTemplate::kNonObjectPropertyStore, object, name); |
| 1531 } | 1531 } |
| 1532 | 1532 |
| 1533 LookupIterator it(object, name); | 1533 LookupIterator it(object, name); |
| 1534 if (FLAG_use_ic) UpdateCaches(&it, value, store_mode); | 1534 if (FLAG_use_ic) UpdateCaches(&it, value, store_mode); |
| 1535 | 1535 |
| 1536 MAYBE_RETURN_NULL( | 1536 MAYBE_RETURN_NULL( |
| 1537 Object::SetProperty(&it, value, language_mode(), store_mode)); | 1537 Object::SetProperty(&it, value, language_mode(), store_mode)); |
| 1538 return value; | 1538 return value; |
| 1539 } | 1539 } |
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| 2938 DCHECK_EQ(FeedbackVectorSlotKind::KEYED_LOAD_IC, | 2938 DCHECK_EQ(FeedbackVectorSlotKind::KEYED_LOAD_IC, |
| 2939 vector->GetKind(vector_slot)); | 2939 vector->GetKind(vector_slot)); |
| 2940 KeyedLoadICNexus nexus(vector, vector_slot); | 2940 KeyedLoadICNexus nexus(vector, vector_slot); |
| 2941 KeyedLoadIC ic(IC::EXTRA_CALL_FRAME, isolate, &nexus); | 2941 KeyedLoadIC ic(IC::EXTRA_CALL_FRAME, isolate, &nexus); |
| 2942 ic.UpdateState(receiver, key); | 2942 ic.UpdateState(receiver, key); |
| 2943 RETURN_RESULT_OR_FAILURE(isolate, ic.Load(receiver, key)); | 2943 RETURN_RESULT_OR_FAILURE(isolate, ic.Load(receiver, key)); |
| 2944 } | 2944 } |
| 2945 } | 2945 } |
| 2946 } // namespace internal | 2946 } // namespace internal |
| 2947 } // namespace v8 | 2947 } // namespace v8 |
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