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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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782 // Leaving JavaScript. | 782 // Leaving JavaScript. |
783 VMState state(EXTERNAL); | 783 VMState state(EXTERNAL); |
784 fun(v8::Utils::ToLocal(name), v8::Utils::ToLocal(value), info); | 784 fun(v8::Utils::ToLocal(name), v8::Utils::ToLocal(value), info); |
785 } | 785 } |
786 RETURN_IF_SCHEDULED_EXCEPTION(); | 786 RETURN_IF_SCHEDULED_EXCEPTION(); |
787 return *value; | 787 return *value; |
788 } | 788 } |
789 | 789 |
790 | 790 |
791 Object* LoadInterceptorProperty(Arguments args) { | 791 Object* LoadInterceptorProperty(Arguments args) { |
792 JSObject* recv = JSObject::cast(args[0]); | 792 Handle<JSObject> receiver_handle = args.at<JSObject>(0); |
793 JSObject* holder = JSObject::cast(args[1]); | 793 Handle<JSObject> holder_handle = args.at<JSObject>(1); |
794 String* name = String::cast(args[2]); | 794 Handle<String> name_handle = args.at<String>(2); |
795 Smi* lookup_hint = Smi::cast(args[3]); | 795 Smi* lookup_hint = Smi::cast(args[3]); |
796 ASSERT(holder->HasNamedInterceptor()); | 796 Handle<InterceptorInfo> interceptor_info = args.at<InterceptorInfo>(4); |
797 PropertyAttributes attr = NONE; | 797 Handle<Object> data_handle = args.at<Object>(5); |
798 | 798 |
799 Object* result = holder->GetInterceptorPropertyWithLookupHint( | 799 Address getter_address = v8::ToCData<Address>(interceptor_info->getter()); |
800 recv, lookup_hint, name, &attr); | 800 v8::NamedPropertyGetter getter = |
| 801 FUNCTION_CAST<v8::NamedPropertyGetter>(getter_address); |
| 802 ASSERT(getter != NULL); |
| 803 |
| 804 PropertyAttributes attributes = ABSENT; |
| 805 Object* result = Heap::undefined_value(); |
| 806 |
| 807 { |
| 808 // Use the interceptor getter. |
| 809 v8::AccessorInfo info(v8::Utils::ToLocal(receiver_handle), |
| 810 v8::Utils::ToLocal(data_handle), |
| 811 v8::Utils::ToLocal(holder_handle)); |
| 812 HandleScope scope; |
| 813 v8::Handle<v8::Value> r; |
| 814 { |
| 815 // Leaving JavaScript. |
| 816 VMState state(EXTERNAL); |
| 817 r = getter(v8::Utils::ToLocal(name_handle), info); |
| 818 } |
| 819 RETURN_IF_SCHEDULED_EXCEPTION(); |
| 820 if (!r.IsEmpty()) { |
| 821 return *v8::Utils::OpenHandle(*r); |
| 822 } |
| 823 } |
| 824 |
| 825 int property_index = lookup_hint->value(); |
| 826 if (property_index >= 0) { |
| 827 result = holder_handle->FastPropertyAt(property_index); |
| 828 } else { |
| 829 switch (property_index) { |
| 830 case JSObject::kLookupInPrototype: { |
| 831 Object* pt = holder_handle->GetPrototype(); |
| 832 if (pt == Heap::null_value()) return Heap::undefined_value(); |
| 833 result = pt->GetPropertyWithReceiver( |
| 834 *receiver_handle, |
| 835 *name_handle, |
| 836 &attributes); |
| 837 RETURN_IF_SCHEDULED_EXCEPTION(); |
| 838 } |
| 839 break; |
| 840 |
| 841 case JSObject::kLookupInHolder: |
| 842 result = holder_handle->GetPropertyPostInterceptor( |
| 843 *receiver_handle, |
| 844 *name_handle, |
| 845 &attributes); |
| 846 RETURN_IF_SCHEDULED_EXCEPTION(); |
| 847 break; |
| 848 |
| 849 default: |
| 850 UNREACHABLE(); |
| 851 } |
| 852 } |
| 853 |
801 if (result->IsFailure()) return result; | 854 if (result->IsFailure()) return result; |
802 | 855 if (attributes != ABSENT) return result; |
803 // If the property is present, return it. | |
804 if (attr != ABSENT) return result; | |
805 | 856 |
806 // If the top frame is an internal frame, this is really a call | 857 // If the top frame is an internal frame, this is really a call |
807 // IC. In this case, we simply return the undefined result which | 858 // IC. In this case, we simply return the undefined result which |
808 // will lead to an exception when trying to invoke the result as a | 859 // will lead to an exception when trying to invoke the result as a |
809 // function. | 860 // function. |
810 StackFrameIterator it; | 861 StackFrameIterator it; |
811 it.Advance(); // skip exit frame | 862 it.Advance(); // skip exit frame |
812 if (it.frame()->is_internal()) return result; | 863 if (it.frame()->is_internal()) return result; |
813 | 864 |
814 // If the load is non-contextual, just return the undefined result. | 865 // If the load is non-contextual, just return the undefined result. |
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1011 int argc = arguments_.immediate(); | 1062 int argc = arguments_.immediate(); |
1012 Code::Flags flags = Code::ComputeMonomorphicFlags(Code::CALL_IC, | 1063 Code::Flags flags = Code::ComputeMonomorphicFlags(Code::CALL_IC, |
1013 type, | 1064 type, |
1014 in_loop_, | 1065 in_loop_, |
1015 argc); | 1066 argc); |
1016 return GetCodeWithFlags(flags, name); | 1067 return GetCodeWithFlags(flags, name); |
1017 } | 1068 } |
1018 | 1069 |
1019 | 1070 |
1020 } } // namespace v8::internal | 1071 } } // namespace v8::internal |
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