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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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1778 } | 1778 } |
1779 | 1779 |
1780 | 1780 |
1781 int CallOptimization::GetPrototypeDepthOfExpectedType( | 1781 int CallOptimization::GetPrototypeDepthOfExpectedType( |
1782 Handle<JSObject> object, | 1782 Handle<JSObject> object, |
1783 Handle<JSObject> holder) const { | 1783 Handle<JSObject> holder) const { |
1784 ASSERT(is_simple_api_call()); | 1784 ASSERT(is_simple_api_call()); |
1785 if (expected_receiver_type_.is_null()) return 0; | 1785 if (expected_receiver_type_.is_null()) return 0; |
1786 int depth = 0; | 1786 int depth = 0; |
1787 while (!object.is_identical_to(holder)) { | 1787 while (!object.is_identical_to(holder)) { |
1788 if (object->IsInstanceOf(*expected_receiver_type_)) return depth; | 1788 if (expected_receiver_type_->IsTemplateFor(object->map())) return depth; |
1789 object = Handle<JSObject>(JSObject::cast(object->GetPrototype())); | 1789 object = Handle<JSObject>(JSObject::cast(object->GetPrototype())); |
1790 if (!object->map()->is_hidden_prototype()) return kInvalidProtoDepth; | 1790 if (!object->map()->is_hidden_prototype()) return kInvalidProtoDepth; |
1791 ++depth; | 1791 ++depth; |
1792 } | 1792 } |
1793 if (holder->IsInstanceOf(*expected_receiver_type_)) return depth; | 1793 if (expected_receiver_type_->IsTemplateFor(holder->map())) return depth; |
1794 return kInvalidProtoDepth; | 1794 return kInvalidProtoDepth; |
1795 } | 1795 } |
1796 | 1796 |
1797 | 1797 |
1798 void CallOptimization::Initialize(Handle<JSFunction> function) { | 1798 void CallOptimization::Initialize(Handle<JSFunction> function) { |
1799 constant_function_ = Handle<JSFunction>::null(); | 1799 constant_function_ = Handle<JSFunction>::null(); |
1800 is_simple_api_call_ = false; | 1800 is_simple_api_call_ = false; |
1801 expected_receiver_type_ = Handle<FunctionTemplateInfo>::null(); | 1801 expected_receiver_type_ = Handle<FunctionTemplateInfo>::null(); |
1802 api_call_info_ = Handle<CallHandlerInfo>::null(); | 1802 api_call_info_ = Handle<CallHandlerInfo>::null(); |
1803 | 1803 |
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1828 Handle<FunctionTemplateInfo>( | 1828 Handle<FunctionTemplateInfo>( |
1829 FunctionTemplateInfo::cast(signature->receiver())); | 1829 FunctionTemplateInfo::cast(signature->receiver())); |
1830 } | 1830 } |
1831 } | 1831 } |
1832 | 1832 |
1833 is_simple_api_call_ = true; | 1833 is_simple_api_call_ = true; |
1834 } | 1834 } |
1835 | 1835 |
1836 | 1836 |
1837 } } // namespace v8::internal | 1837 } } // namespace v8::internal |
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