File: stack_trace_element.h

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/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_
#define ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_

#include "object.h"

namespace art {

template<class T> class Handle;
struct StackTraceElementOffsets;

namespace mirror {

// C++ mirror of java.lang.StackTraceElement
class MANAGED StackTraceElement final : public Object {
 public:
  ObjPtr<String> GetDeclaringClass() REQUIRES_SHARED(Locks::mutator_lock_);

  ObjPtr<String> GetMethodName() REQUIRES_SHARED(Locks::mutator_lock_);

  ObjPtr<String> GetFileName() REQUIRES_SHARED(Locks::mutator_lock_);

  int32_t GetLineNumber() REQUIRES_SHARED(Locks::mutator_lock_) {
    return GetField32(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, line_number_));
  }

  static ObjPtr<StackTraceElement> Alloc(Thread* self,
                                         Handle<String> declaring_class,
                                         Handle<String> method_name,
                                         Handle<String> file_name,
                                         int32_t line_number)
      REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);

 private:
  // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses".
  HeapReference<String> declaring_class_;
  HeapReference<String> file_name_;
  HeapReference<String> method_name_;
  int32_t line_number_;

  template<bool kTransactionActive>
  void Init(ObjPtr<String> declaring_class,
            ObjPtr<String> method_name,
            ObjPtr<String> file_name,
            int32_t line_number)
      REQUIRES_SHARED(Locks::mutator_lock_);

  friend struct art::StackTraceElementOffsets;  // for verifying offset information
  DISALLOW_IMPLICIT_CONSTRUCTORS(StackTraceElement);
};

}  // namespace mirror
}  // namespace art

#endif  // ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_