// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/callback_internal.h"

namespace base {
namespace internal {

bool CallbackBase::is_null() const {
  return invoker_storage_.get() == NULL;
}

void CallbackBase::Reset() {
  invoker_storage_ = NULL;
  polymorphic_invoke_ = NULL;
}

bool CallbackBase::Equals(const CallbackBase& other) const {
  return invoker_storage_.get() == other.invoker_storage_.get() &&
         polymorphic_invoke_ == other.polymorphic_invoke_;
}

CallbackBase::CallbackBase(InvokeFuncStorage polymorphic_invoke,
                           scoped_refptr<InvokerStorageBase>* invoker_storage)
    : polymorphic_invoke_(polymorphic_invoke) {
  if (invoker_storage) {
    invoker_storage_.swap(*invoker_storage);
  }
}

CallbackBase::~CallbackBase() {
}

}  // namespace base
}  // namespace internal