tools/clang/rewrite_scoped_refptr/tests/scoped_refptr.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef SCOPED_REFPTR_H_
   6 #define SCOPED_REFPTR_H_
   7
   8 // Stub scoped_refptr<T> class that supports an implicit cast to T*.
   9 template <class T>
  10 class scoped_refptr {
  11  public:
  12   typedef T element_type;
  13   scoped_refptr() : ptr_(0) {}
  14   scoped_refptr(T* p) : ptr_(p) {}
  15   scoped_refptr(const scoped_refptr<T>& r) : ptr_(r.ptr_) {}
  16
  17   template <typename U>
  18   scoped_refptr(const scoped_refptr<U>& r)
  19       : ptr_(r.get()) {}
  20
  21   ~scoped_refptr() {}
  22
  23   T* get() const { return ptr_; }
  24   operator T*() const { return ptr_; }
  25   T* operator->() const { return ptr_; }
  26
  27   scoped_refptr<T>& operator=(T* p) {
  28     ptr_ = p;
  29     return *this;
  30   }
  31   scoped_refptr<T>& operator=(const scoped_refptr<T>& r) {
  32     return *this = r.ptr_;
  33   }
  34   template <typename U>
  35   scoped_refptr<T>& operator=(const scoped_refptr<U>& r) {
  36     return *this = r.get();
  37   }
  38
  39  protected:
  40   T* ptr_;
  41 };
  42
  43 #endif  // SCOPED_REFPTR_H_