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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/accessors.h" | 5 #include "src/accessors.h" |
6 | 6 |
7 #include "src/api.h" | 7 #include "src/api.h" |
8 #include "src/contexts.h" | 8 #include "src/contexts.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/execution.h" | 10 #include "src/execution.h" |
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731 | 731 |
732 void Accessors::FunctionLengthGetter( | 732 void Accessors::FunctionLengthGetter( |
733 v8::Local<v8::Name> name, | 733 v8::Local<v8::Name> name, |
734 const v8::PropertyCallbackInfo<v8::Value>& info) { | 734 const v8::PropertyCallbackInfo<v8::Value>& info) { |
735 i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate()); | 735 i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate()); |
736 HandleScope scope(isolate); | 736 HandleScope scope(isolate); |
737 Handle<JSFunction> function = | 737 Handle<JSFunction> function = |
738 Handle<JSFunction>::cast(Utils::OpenHandle(*info.Holder())); | 738 Handle<JSFunction>::cast(Utils::OpenHandle(*info.Holder())); |
739 Handle<Object> result; | 739 Handle<Object> result; |
740 if (!JSFunction::GetLength(isolate, function).ToHandle(&result)) { | 740 if (!JSFunction::GetLength(isolate, function).ToHandle(&result)) { |
741 result = handle(Smi::kZero, isolate); | 741 result = handle(Smi::FromInt(0), isolate); |
742 isolate->OptionalRescheduleException(false); | 742 isolate->OptionalRescheduleException(false); |
743 } | 743 } |
744 | 744 |
745 info.GetReturnValue().Set(Utils::ToLocal(result)); | 745 info.GetReturnValue().Set(Utils::ToLocal(result)); |
746 } | 746 } |
747 | 747 |
748 Handle<AccessorInfo> Accessors::FunctionLengthInfo( | 748 Handle<AccessorInfo> Accessors::FunctionLengthInfo( |
749 Isolate* isolate, PropertyAttributes attributes) { | 749 Isolate* isolate, PropertyAttributes attributes) { |
750 return MakeAccessor(isolate, isolate->factory()->length_string(), | 750 return MakeAccessor(isolate, isolate->factory()->length_string(), |
751 &FunctionLengthGetter, &ReconfigureToDataProperty, | 751 &FunctionLengthGetter, &ReconfigureToDataProperty, |
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1065 v8::Local<v8::Name> name, const v8::PropertyCallbackInfo<v8::Value>& info) { | 1065 v8::Local<v8::Name> name, const v8::PropertyCallbackInfo<v8::Value>& info) { |
1066 i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate()); | 1066 i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate()); |
1067 HandleScope scope(isolate); | 1067 HandleScope scope(isolate); |
1068 Handle<JSBoundFunction> function = | 1068 Handle<JSBoundFunction> function = |
1069 Handle<JSBoundFunction>::cast(Utils::OpenHandle(*info.Holder())); | 1069 Handle<JSBoundFunction>::cast(Utils::OpenHandle(*info.Holder())); |
1070 | 1070 |
1071 Handle<Smi> target_length; | 1071 Handle<Smi> target_length; |
1072 Handle<JSFunction> target(JSFunction::cast(function->bound_target_function()), | 1072 Handle<JSFunction> target(JSFunction::cast(function->bound_target_function()), |
1073 isolate); | 1073 isolate); |
1074 if (!JSFunction::GetLength(isolate, target).ToHandle(&target_length)) { | 1074 if (!JSFunction::GetLength(isolate, target).ToHandle(&target_length)) { |
1075 target_length = handle(Smi::kZero, isolate); | 1075 target_length = handle(Smi::FromInt(0), isolate); |
1076 isolate->OptionalRescheduleException(false); | 1076 isolate->OptionalRescheduleException(false); |
1077 return; | 1077 return; |
1078 } | 1078 } |
1079 | 1079 |
1080 int bound_length = function->bound_arguments()->length(); | 1080 int bound_length = function->bound_arguments()->length(); |
1081 int length = Max(0, target_length->value() - bound_length); | 1081 int length = Max(0, target_length->value() - bound_length); |
1082 | 1082 |
1083 Handle<Object> result(Smi::FromInt(length), isolate); | 1083 Handle<Object> result(Smi::FromInt(length), isolate); |
1084 info.GetReturnValue().Set(Utils::ToLocal(result)); | 1084 info.GetReturnValue().Set(Utils::ToLocal(result)); |
1085 } | 1085 } |
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1227 Handle<AccessorInfo> Accessors::ErrorStackInfo(Isolate* isolate, | 1227 Handle<AccessorInfo> Accessors::ErrorStackInfo(Isolate* isolate, |
1228 PropertyAttributes attributes) { | 1228 PropertyAttributes attributes) { |
1229 Handle<AccessorInfo> info = | 1229 Handle<AccessorInfo> info = |
1230 MakeAccessor(isolate, isolate->factory()->stack_string(), | 1230 MakeAccessor(isolate, isolate->factory()->stack_string(), |
1231 &ErrorStackGetter, &ErrorStackSetter, attributes); | 1231 &ErrorStackGetter, &ErrorStackSetter, attributes); |
1232 return info; | 1232 return info; |
1233 } | 1233 } |
1234 | 1234 |
1235 } // namespace internal | 1235 } // namespace internal |
1236 } // namespace v8 | 1236 } // namespace v8 |
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