upload android base code part3
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208
android/art/runtime/common_dex_operations.h
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208
android/art/runtime/common_dex_operations.h
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_COMMON_DEX_OPERATIONS_H_
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#define ART_RUNTIME_COMMON_DEX_OPERATIONS_H_
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#include "art_field.h"
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#include "art_method.h"
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#include "class_linker.h"
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#include "interpreter/unstarted_runtime.h"
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#include "runtime.h"
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#include "stack.h"
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#include "thread.h"
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namespace art {
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namespace interpreter {
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void ArtInterpreterToInterpreterBridge(Thread* self,
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const DexFile::CodeItem* code_item,
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ShadowFrame* shadow_frame,
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JValue* result)
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REQUIRES_SHARED(Locks::mutator_lock_);
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void ArtInterpreterToCompiledCodeBridge(Thread* self,
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ArtMethod* caller,
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ShadowFrame* shadow_frame,
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uint16_t arg_offset,
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JValue* result);
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} // namespace interpreter
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inline void PerformCall(Thread* self,
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const DexFile::CodeItem* code_item,
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ArtMethod* caller_method,
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const size_t first_dest_reg,
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ShadowFrame* callee_frame,
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JValue* result,
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bool use_interpreter_entrypoint)
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REQUIRES_SHARED(Locks::mutator_lock_) {
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if (LIKELY(Runtime::Current()->IsStarted())) {
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if (use_interpreter_entrypoint) {
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interpreter::ArtInterpreterToInterpreterBridge(self, code_item, callee_frame, result);
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} else {
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interpreter::ArtInterpreterToCompiledCodeBridge(
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self, caller_method, callee_frame, first_dest_reg, result);
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}
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} else {
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interpreter::UnstartedRuntime::Invoke(self, code_item, callee_frame, result, first_dest_reg);
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}
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}
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template<Primitive::Type field_type>
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static ALWAYS_INLINE bool DoFieldGetCommon(Thread* self,
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const ShadowFrame& shadow_frame,
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ObjPtr<mirror::Object> obj,
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ArtField* field,
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JValue* result)
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REQUIRES_SHARED(Locks::mutator_lock_) {
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field->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self);
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// Report this field access to instrumentation if needed.
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instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
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if (UNLIKELY(instrumentation->HasFieldReadListeners())) {
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StackHandleScope<1> hs(self);
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// Wrap in handle wrapper in case the listener does thread suspension.
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HandleWrapperObjPtr<mirror::Object> h(hs.NewHandleWrapper(&obj));
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ObjPtr<mirror::Object> this_object;
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if (!field->IsStatic()) {
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this_object = obj;
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}
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instrumentation->FieldReadEvent(self,
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this_object.Ptr(),
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shadow_frame.GetMethod(),
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shadow_frame.GetDexPC(),
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field);
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if (UNLIKELY(self->IsExceptionPending())) {
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return false;
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}
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}
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switch (field_type) {
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case Primitive::kPrimBoolean:
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result->SetZ(field->GetBoolean(obj));
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break;
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case Primitive::kPrimByte:
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result->SetB(field->GetByte(obj));
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break;
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case Primitive::kPrimChar:
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result->SetC(field->GetChar(obj));
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break;
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case Primitive::kPrimShort:
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result->SetS(field->GetShort(obj));
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break;
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case Primitive::kPrimInt:
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result->SetI(field->GetInt(obj));
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break;
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case Primitive::kPrimLong:
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result->SetJ(field->GetLong(obj));
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break;
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case Primitive::kPrimNot:
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result->SetL(field->GetObject(obj));
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break;
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case Primitive::kPrimVoid:
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LOG(FATAL) << "Unreachable " << field_type;
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break;
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}
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return true;
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}
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template<Primitive::Type field_type, bool do_assignability_check, bool transaction_active>
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ALWAYS_INLINE bool DoFieldPutCommon(Thread* self,
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const ShadowFrame& shadow_frame,
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ObjPtr<mirror::Object> obj,
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ArtField* field,
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JValue& value)
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REQUIRES_SHARED(Locks::mutator_lock_) {
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field->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self);
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// Report this field access to instrumentation if needed. Since we only have the offset of
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// the field from the base of the object, we need to look for it first.
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instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
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if (UNLIKELY(instrumentation->HasFieldWriteListeners())) {
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StackHandleScope<2> hs(self);
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// Save this and return value (if needed) in case the instrumentation causes a suspend.
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HandleWrapperObjPtr<mirror::Object> h(hs.NewHandleWrapper(&obj));
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ObjPtr<mirror::Object> this_object = field->IsStatic() ? nullptr : obj;
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mirror::Object* fake_root = nullptr;
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HandleWrapper<mirror::Object> ret(hs.NewHandleWrapper<mirror::Object>(
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field_type == Primitive::kPrimNot ? value.GetGCRoot() : &fake_root));
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instrumentation->FieldWriteEvent(self,
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this_object.Ptr(),
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shadow_frame.GetMethod(),
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shadow_frame.GetDexPC(),
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field,
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value);
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if (UNLIKELY(self->IsExceptionPending())) {
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return false;
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}
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}
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switch (field_type) {
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case Primitive::kPrimBoolean:
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field->SetBoolean<transaction_active>(obj, value.GetZ());
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break;
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case Primitive::kPrimByte:
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field->SetByte<transaction_active>(obj, value.GetB());
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break;
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case Primitive::kPrimChar:
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field->SetChar<transaction_active>(obj, value.GetC());
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break;
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case Primitive::kPrimShort:
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field->SetShort<transaction_active>(obj, value.GetS());
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break;
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case Primitive::kPrimInt:
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field->SetInt<transaction_active>(obj, value.GetI());
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break;
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case Primitive::kPrimLong:
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field->SetLong<transaction_active>(obj, value.GetJ());
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break;
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case Primitive::kPrimNot: {
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ObjPtr<mirror::Object> reg = value.GetL();
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if (do_assignability_check && reg != nullptr) {
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// FieldHelper::GetType can resolve classes, use a handle wrapper which will restore the
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// object in the destructor.
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ObjPtr<mirror::Class> field_class;
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{
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StackHandleScope<2> hs(self);
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HandleWrapperObjPtr<mirror::Object> h_reg(hs.NewHandleWrapper(®));
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HandleWrapperObjPtr<mirror::Object> h_obj(hs.NewHandleWrapper(&obj));
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field_class = field->GetType<true>();
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}
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if (!reg->VerifierInstanceOf(field_class.Ptr())) {
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// This should never happen.
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std::string temp1, temp2, temp3;
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self->ThrowNewExceptionF("Ljava/lang/InternalError;",
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"Put '%s' that is not instance of field '%s' in '%s'",
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reg->GetClass()->GetDescriptor(&temp1),
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field_class->GetDescriptor(&temp2),
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field->GetDeclaringClass()->GetDescriptor(&temp3));
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return false;
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}
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}
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field->SetObj<transaction_active>(obj, reg);
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break;
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}
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case Primitive::kPrimVoid: {
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LOG(FATAL) << "Unreachable " << field_type;
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break;
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}
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}
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return true;
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}
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} // namespace art
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#endif // ART_RUNTIME_COMMON_DEX_OPERATIONS_H_
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