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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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| 6038 // Get the actual number of provided arguments. | 6038 // Get the actual number of provided arguments. |
| 6039 const uint32_t n = frame->ComputeParametersCount(); | 6039 const uint32_t n = frame->ComputeParametersCount(); |
| 6040 | 6040 |
| 6041 // Try to convert the key to an index. If successful and within | 6041 // Try to convert the key to an index. If successful and within |
| 6042 // index return the the argument from the frame. | 6042 // index return the the argument from the frame. |
| 6043 uint32_t index; | 6043 uint32_t index; |
| 6044 if (args[0]->ToArrayIndex(&index) && index < n) { | 6044 if (args[0]->ToArrayIndex(&index) && index < n) { |
| 6045 return frame->GetParameter(index); | 6045 return frame->GetParameter(index); |
| 6046 } | 6046 } |
| 6047 | 6047 |
| 6048 HandleScope scope(isolate); |
| 6048 if (args[0]->IsSymbol()) { | 6049 if (args[0]->IsSymbol()) { |
| 6049 // Lookup in the initial Object.prototype object. | 6050 // Lookup in the initial Object.prototype object. |
| 6050 return isolate->initial_object_prototype()->GetProperty( | 6051 Handle<Object> result = Object::GetProperty( |
| 6051 Symbol::cast(args[0])); | 6052 isolate->initial_object_prototype(), args.at<Symbol>(0)); |
| 6053 RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 6054 return *result; |
| 6052 } | 6055 } |
| 6053 | 6056 |
| 6054 // Convert the key to a string. | 6057 // Convert the key to a string. |
| 6055 HandleScope scope(isolate); | |
| 6056 bool exception = false; | 6058 bool exception = false; |
| 6057 Handle<Object> converted = | 6059 Handle<Object> converted = |
| 6058 Execution::ToString(isolate, args.at<Object>(0), &exception); | 6060 Execution::ToString(isolate, args.at<Object>(0), &exception); |
| 6059 if (exception) return Failure::Exception(); | 6061 if (exception) return Failure::Exception(); |
| 6060 Handle<String> key = Handle<String>::cast(converted); | 6062 Handle<String> key = Handle<String>::cast(converted); |
| 6061 | 6063 |
| 6062 // Try to convert the string key into an array index. | 6064 // Try to convert the string key into an array index. |
| 6063 if (key->AsArrayIndex(&index)) { | 6065 if (key->AsArrayIndex(&index)) { |
| 6064 if (index < n) { | 6066 if (index < n) { |
| 6065 return frame->GetParameter(index); | 6067 return frame->GetParameter(index); |
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| 6077 if (key->Equals(isolate->heap()->callee_string())) { | 6079 if (key->Equals(isolate->heap()->callee_string())) { |
| 6078 JSFunction* function = frame->function(); | 6080 JSFunction* function = frame->function(); |
| 6079 if (function->shared()->strict_mode() == STRICT) { | 6081 if (function->shared()->strict_mode() == STRICT) { |
| 6080 return isolate->Throw(*isolate->factory()->NewTypeError( | 6082 return isolate->Throw(*isolate->factory()->NewTypeError( |
| 6081 "strict_arguments_callee", HandleVector<Object>(NULL, 0))); | 6083 "strict_arguments_callee", HandleVector<Object>(NULL, 0))); |
| 6082 } | 6084 } |
| 6083 return function; | 6085 return function; |
| 6084 } | 6086 } |
| 6085 | 6087 |
| 6086 // Lookup in the initial Object.prototype object. | 6088 // Lookup in the initial Object.prototype object. |
| 6087 return isolate->initial_object_prototype()->GetProperty(*key); | 6089 Handle<Object> result = Object::GetProperty( |
| 6090 isolate->initial_object_prototype(), key); |
| 6091 RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 6092 return *result; |
| 6088 } | 6093 } |
| 6089 | 6094 |
| 6090 | 6095 |
| 6091 RUNTIME_FUNCTION(MaybeObject*, Runtime_ToFastProperties) { | 6096 RUNTIME_FUNCTION(MaybeObject*, Runtime_ToFastProperties) { |
| 6092 HandleScope scope(isolate); | 6097 HandleScope scope(isolate); |
| 6093 ASSERT(args.length() == 1); | 6098 ASSERT(args.length() == 1); |
| 6094 CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); | 6099 CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| 6095 if (object->IsJSObject() && !object->IsGlobalObject()) { | 6100 if (object->IsJSObject() && !object->IsGlobalObject()) { |
| 6096 JSObject::TransformToFastProperties(Handle<JSObject>::cast(object), 0); | 6101 JSObject::TransformToFastProperties(Handle<JSObject>::cast(object), 0); |
| 6097 } | 6102 } |
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| 9335 // GetProperty below can cause GC. | 9340 // GetProperty below can cause GC. |
| 9336 Handle<Object> receiver_handle( | 9341 Handle<Object> receiver_handle( |
| 9337 object->IsGlobalObject() | 9342 object->IsGlobalObject() |
| 9338 ? Object::cast(isolate->heap()->undefined_value()) | 9343 ? Object::cast(isolate->heap()->undefined_value()) |
| 9339 : object->IsJSProxy() ? static_cast<Object*>(*object) | 9344 : object->IsJSProxy() ? static_cast<Object*>(*object) |
| 9340 : ComputeReceiverForNonGlobal(isolate, JSObject::cast(*object)), | 9345 : ComputeReceiverForNonGlobal(isolate, JSObject::cast(*object)), |
| 9341 isolate); | 9346 isolate); |
| 9342 | 9347 |
| 9343 // No need to unhole the value here. This is taken care of by the | 9348 // No need to unhole the value here. This is taken care of by the |
| 9344 // GetProperty function. | 9349 // GetProperty function. |
| 9345 MaybeObject* value = object->GetProperty(*name); | 9350 Handle<Object> value = Object::GetProperty(object, name); |
| 9346 return MakePair(value, *receiver_handle); | 9351 RETURN_IF_EMPTY_HANDLE_VALUE( |
| 9352 isolate, value, MakePair(Failure::Exception(), NULL)); |
| 9353 return MakePair(*value, *receiver_handle); |
| 9347 } | 9354 } |
| 9348 | 9355 |
| 9349 if (throw_error) { | 9356 if (throw_error) { |
| 9350 // The property doesn't exist - throw exception. | 9357 // The property doesn't exist - throw exception. |
| 9351 Handle<Object> reference_error = | 9358 Handle<Object> reference_error = |
| 9352 isolate->factory()->NewReferenceError("not_defined", | 9359 isolate->factory()->NewReferenceError("not_defined", |
| 9353 HandleVector(&name, 1)); | 9360 HandleVector(&name, 1)); |
| 9354 return MakePair(isolate->Throw(*reference_error), NULL); | 9361 return MakePair(isolate->Throw(*reference_error), NULL); |
| 9355 } else { | 9362 } else { |
| 9356 // The property doesn't exist - return undefined. | 9363 // The property doesn't exist - return undefined. |
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| 15222 } | 15229 } |
| 15223 } | 15230 } |
| 15224 | 15231 |
| 15225 | 15232 |
| 15226 void Runtime::OutOfMemory() { | 15233 void Runtime::OutOfMemory() { |
| 15227 Heap::FatalProcessOutOfMemory("CALL_AND_RETRY_LAST", true); | 15234 Heap::FatalProcessOutOfMemory("CALL_AND_RETRY_LAST", true); |
| 15228 UNREACHABLE(); | 15235 UNREACHABLE(); |
| 15229 } | 15236 } |
| 15230 | 15237 |
| 15231 } } // namespace v8::internal | 15238 } } // namespace v8::internal |
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