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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 // 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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4403 AccessorPair* accessors; | 4403 AccessorPair* accessors; |
4404 { MaybeObject* maybe_accessors = GetHeap()->AllocateAccessorPair(); | 4404 { MaybeObject* maybe_accessors = GetHeap()->AllocateAccessorPair(); |
4405 if (!maybe_accessors->To(&accessors)) return maybe_accessors; | 4405 if (!maybe_accessors->To(&accessors)) return maybe_accessors; |
4406 } | 4406 } |
4407 accessors->SetComponents(getter, setter); | 4407 accessors->SetComponents(getter, setter); |
4408 | 4408 |
4409 return SetElementCallback(index, accessors, attributes); | 4409 return SetElementCallback(index, accessors, attributes); |
4410 } | 4410 } |
4411 | 4411 |
4412 | 4412 |
| 4413 MaybeObject* JSObject::CreateAccessorPairFor(String* name) { |
| 4414 LookupResult result(GetHeap()->isolate()); |
| 4415 LocalLookupRealNamedProperty(name, &result); |
| 4416 if (result.IsProperty() && result.type() == CALLBACKS) { |
| 4417 ASSERT(!result.IsDontDelete()); |
| 4418 Object* obj = result.GetCallbackObject(); |
| 4419 if (obj->IsAccessorPair()) { |
| 4420 return AccessorPair::cast(obj)->CopyWithoutTransitions(); |
| 4421 } |
| 4422 } |
| 4423 return GetHeap()->AllocateAccessorPair(); |
| 4424 } |
| 4425 |
| 4426 |
4413 MaybeObject* JSObject::DefinePropertyAccessor(String* name, | 4427 MaybeObject* JSObject::DefinePropertyAccessor(String* name, |
4414 Object* getter, | 4428 Object* getter, |
4415 Object* setter, | 4429 Object* setter, |
4416 PropertyAttributes attributes) { | 4430 PropertyAttributes attributes) { |
4417 // Lookup the name. | |
4418 LookupResult result(GetHeap()->isolate()); | |
4419 LocalLookupRealNamedProperty(name, &result); | |
4420 if (result.IsFound()) { | |
4421 if (result.type() == CALLBACKS) { | |
4422 ASSERT(!result.IsDontDelete()); | |
4423 Object* obj = result.GetCallbackObject(); | |
4424 // Need to preserve old getters/setters. | |
4425 if (obj->IsAccessorPair()) { | |
4426 AccessorPair* copy; | |
4427 { MaybeObject* maybe_copy = | |
4428 AccessorPair::cast(obj)->CopyWithoutTransitions(); | |
4429 if (!maybe_copy->To(©)) return maybe_copy; | |
4430 } | |
4431 copy->SetComponents(getter, setter); | |
4432 // Use set to update attributes. | |
4433 return SetPropertyCallback(name, copy, attributes); | |
4434 } | |
4435 } | |
4436 } | |
4437 | |
4438 AccessorPair* accessors; | 4431 AccessorPair* accessors; |
4439 { MaybeObject* maybe_accessors = GetHeap()->AllocateAccessorPair(); | 4432 { MaybeObject* maybe_accessors = CreateAccessorPairFor(name); |
4440 if (!maybe_accessors->To(&accessors)) return maybe_accessors; | 4433 if (!maybe_accessors->To(&accessors)) return maybe_accessors; |
4441 } | 4434 } |
4442 accessors->SetComponents(getter, setter); | 4435 accessors->SetComponents(getter, setter); |
4443 | |
4444 return SetPropertyCallback(name, accessors, attributes); | 4436 return SetPropertyCallback(name, accessors, attributes); |
4445 } | 4437 } |
4446 | 4438 |
4447 | 4439 |
4448 bool JSObject::CanSetCallback(String* name) { | 4440 bool JSObject::CanSetCallback(String* name) { |
4449 ASSERT(!IsAccessCheckNeeded() || | 4441 ASSERT(!IsAccessCheckNeeded() || |
4450 GetIsolate()->MayNamedAccess(this, name, v8::ACCESS_SET)); | 4442 GetIsolate()->MayNamedAccess(this, name, v8::ACCESS_SET)); |
4451 | 4443 |
4452 // Check if there is an API defined callback object which prohibits | 4444 // Check if there is an API defined callback object which prohibits |
4453 // callback overwriting in this object or it's prototype chain. | 4445 // callback overwriting in this object or it's prototype chain. |
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12973 set_year(Smi::FromInt(year), SKIP_WRITE_BARRIER); | 12965 set_year(Smi::FromInt(year), SKIP_WRITE_BARRIER); |
12974 set_month(Smi::FromInt(month), SKIP_WRITE_BARRIER); | 12966 set_month(Smi::FromInt(month), SKIP_WRITE_BARRIER); |
12975 set_day(Smi::FromInt(day), SKIP_WRITE_BARRIER); | 12967 set_day(Smi::FromInt(day), SKIP_WRITE_BARRIER); |
12976 set_weekday(Smi::FromInt(weekday), SKIP_WRITE_BARRIER); | 12968 set_weekday(Smi::FromInt(weekday), SKIP_WRITE_BARRIER); |
12977 set_hour(Smi::FromInt(hour), SKIP_WRITE_BARRIER); | 12969 set_hour(Smi::FromInt(hour), SKIP_WRITE_BARRIER); |
12978 set_min(Smi::FromInt(min), SKIP_WRITE_BARRIER); | 12970 set_min(Smi::FromInt(min), SKIP_WRITE_BARRIER); |
12979 set_sec(Smi::FromInt(sec), SKIP_WRITE_BARRIER); | 12971 set_sec(Smi::FromInt(sec), SKIP_WRITE_BARRIER); |
12980 } | 12972 } |
12981 | 12973 |
12982 } } // namespace v8::internal | 12974 } } // namespace v8::internal |
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