text: /*
   * Copyright (C) 2013 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_OBJECT_CALLBACKS_H_
  #define ART_RUNTIME_OBJECT_CALLBACKS_H_
  
  // For ostream.
  #include <museum/6.0.1/external/libcxx/ostream>
  // For uint32_t.
  #include <museum/6.0.1/bionic/libc/stdint.h>
  // For size_t.
  #include <museum/6.0.1/bionic/libc/stdlib.h>
  
  #include <museum/6.0.1/art/runtime/base/macros.h>
  
  namespace facebook { namespace museum { namespace MUSEUM_VERSION { namespace art {
  namespace mirror {
    class Class;
    class Object;
    template<class MirrorType> class HeapReference;
    class Reference;
  }  // namespace mirror
  class StackVisitor;
  
  // A callback for visiting an object in the heap.
  typedef void (ObjectCallback)(mirror::Object* obj, void* arg);
  // A callback used for marking an object, returns the new address of the object if the object moved.
  typedef mirror::Object* (MarkObjectCallback)(mirror::Object* obj, void* arg) WARN_UNUSED;
  
  typedef void (MarkHeapReferenceCallback)(mirror::HeapReference<mirror::Object>* ref, void* arg);
  typedef void (DelayReferenceReferentCallback)(mirror::Class* klass, mirror::Reference* ref,
      void* arg);
  
  // A callback for testing if an object is marked, returns null if not marked, otherwise the new
  // address the object (if the object didn't move, returns the object input parameter).
  typedef mirror::Object* (IsMarkedCallback)(mirror::Object* object, void* arg) WARN_UNUSED;
  
  // Returns true if the object in the heap reference is marked, if it is marked and has moved the
  // callback updates the heap reference contain the new value.
  typedef bool (IsHeapReferenceMarkedCallback)(mirror::HeapReference<mirror::Object>* object,
      void* arg) WARN_UNUSED;
  typedef void (ProcessMarkStackCallback)(void* arg);
  
  } } } } // namespace facebook::museum::MUSEUM_VERSION::art
  
  #endif  // ART_RUNTIME_OBJECT_CALLBACKS_H_
  