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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkSkTScopedPtr_DEFINED
#define SkSkTScopedPtr_DEFINED
#include "SkTemplates.h"
template<typename T>
class SkTScopedComPtr : SkNoncopyable {
private:
T *fPtr;
public:
explicit SkTScopedComPtr(T *ptr = NULL) : fPtr(ptr) { }
~SkTScopedComPtr() {
this->reset();
}
T &operator*() const { return *fPtr; }
T *operator->() const { return fPtr; }
/**
* Returns the address of the underlying pointer.
* This is dangerous -- it breaks encapsulation and the reference escapes.
* Must only be used on instances currently pointing to NULL,
* and only to initialize the instance.
*/
T **operator&() { SkASSERT(fPtr == NULL); return &fPtr; }
T *get() const { return fPtr; }
void reset() {
if (NULL != this->fPtr) {
this->fPtr->Release();
this->fPtr = NULL;
}
}
};
#endif
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