зеркало из https://github.com/mozilla/pjs.git
new feature lets you `see past' |nsISupports| in |nsCOMPtr|s. Now in the debugger (in debug versions only) you will see the actual type of the object. This is enabled by defining the preprocessor symbol |NSCAP_FEATURE_DEBUG_PTR_TYPES|. It cannot be turned on in non-debug builds. It is currently on in debug builds by default. It may become a feature that has to be enabled with a build command line switch.
This commit is contained in:
scc%netscape.com
Родитель
c3665c08b4
Коммит
9d49cb3127
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|
@ -69,7 +69,6 @@
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+ Improve internal documentation
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+ mention *&
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+ alternatives for comparison
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+ do_QueryInterface
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*/
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@ -114,12 +113,19 @@
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// under VC++, we win by inlining StartAssignment
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#endif
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#define NSCAP_FEATURE_ALLOW_RAW_POINTERS
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#define NSCAP_FEATURE_ALLOW_COMPARISONS
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#define NSCAP_FEATURE_FACTOR_DESTRUCTOR
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#ifdef NS_DEBUG
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#define NSCAP_FEATURE_TEST_DONTQUERY_CASES
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#define NSCAP_FEATURE_DEBUG_PTR_TYPES
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#endif
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#ifndef NS_DEBUG
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#undef NSCAP_FEATURE_DEBUG_PTR_TYPES
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#endif
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#ifdef NSCAP_FEATURE_DEBUG_PTR_TYPES
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#undef NSCAP_FEATURE_FACTOR_DESTRUCTOR
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#endif
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@ -189,7 +195,8 @@ class nsDerivedSafe : public T
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void operator delete( void*, size_t ); // NOT TO BE IMPLEMENTED
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// declaring |operator delete| private makes calling delete on an interface pointer a compile error
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nsDerivedSafe<T>& operator=( const nsDerivedSafe<T>& ); // NOT TO BE IMPLEMENTED
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nsDerivedSafe<T>& operator=( const nsDerivedSafe<T>& ); // NOT TO BE IMPLEMENTED
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// nsDerivedSafe<T>& operator=( const T& ); // NOT TO BE IMPLEMENTED
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// you may not call |operator=()| through a dereferenced |nsCOMPtr|, because you'd get the wrong one
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};
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@ -219,6 +226,8 @@ struct nsDontQueryInterface
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...
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DO NOT USE THIS TYPE DIRECTLY IN YOUR CODE. Use |dont_QueryInterface()| instead.
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This type should be a nested class inside |nsCOMPtr<T>|.
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*/
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{
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explicit
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@ -268,26 +277,7 @@ do_QueryInterface( nsISupports* aRawPtr, nsresult* error = 0 )
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return nsQueryInterface(aRawPtr, error);
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}
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#ifdef NSCAP_FEATURE_ALLOW_RAW_POINTERS
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#define null_nsCOMPtr() (0)
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#else
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inline
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const nsQueryInterface
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null_nsCOMPtr()
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/*
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You can use this to assign |NULL| into an |nsCOMPtr|, e.g.,
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myPtr = null_nsCOMPtr();
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*/
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{
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typedef nsISupports* nsISupports_Ptr;
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return nsQueryInterface(nsISupports_Ptr(0));
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}
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#endif
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#define null_nsCOMPtr() (0)
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@ -303,6 +293,8 @@ struct nsDontAddRef
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|dont_AddRef()| instead.
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See also |getter_AddRefs()|, |dont_AddRef()|, and |class nsGetterAddRefs|.
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This type should be a nested class inside |nsCOMPtr<T>|.
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*/
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{
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explicit
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@ -354,14 +346,6 @@ class nsCOMPtr_base
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NS_EXPORT ~nsCOMPtr_base();
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#endif
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#if 0
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~nsCOMPtr_base()
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{
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if ( mRawPtr )
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NSCAP_RELEASE(mRawPtr);
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}
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#endif
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NS_EXPORT void assign_with_AddRef( nsISupports* );
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NS_EXPORT void assign_with_QueryInterface( nsISupports*, const nsIID&, nsresult* );
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NS_EXPORT void** begin_assignment();
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@ -373,19 +357,28 @@ class nsCOMPtr_base
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template <class T>
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class nsCOMPtr : private nsCOMPtr_base
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/*
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...
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*/
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class nsCOMPtr
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#ifndef NSCAP_FEATURE_DEBUG_PTR_TYPES
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: private nsCOMPtr_base
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#endif
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{
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#ifdef NSCAP_FEATURE_DEBUG_PTR_TYPES
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private:
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void assign_with_AddRef( nsISupports* );
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void assign_with_QueryInterface( nsISupports*, const nsIID&, nsresult* );
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void** begin_assignment();
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private:
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T* mRawPtr;
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#define NSCAP_CTOR_BASE(x) mRawPtr(x)
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#else
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#define NSCAP_CTOR_BASE(x) nsCOMPtr_base(x)
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#endif
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public:
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typedef T element_type;
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#if 0
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typedef nsDerivedSafe<T>* safe_ptr_t;
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typedef T* safe_ptr_t;
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#endif
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#ifndef NSCAP_FEATURE_FACTOR_DESTRUCTOR
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~nsCOMPtr()
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{
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@ -395,13 +388,13 @@ class nsCOMPtr : private nsCOMPtr_base
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#endif
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nsCOMPtr()
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// : nsCOMPtr_base(0)
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: NSCAP_CTOR_BASE(0)
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{
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// nothing else to do here
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}
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nsCOMPtr( const nsQueryInterface& aSmartPtr )
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// : nsCOMPtr_base(0)
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: NSCAP_CTOR_BASE(0)
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{
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assign_with_QueryInterface(aSmartPtr.mRawPtr, nsCOMTypeInfo<T>::GetIID(), aSmartPtr.mErrorPtr);
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}
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@ -410,62 +403,59 @@ class nsCOMPtr : private nsCOMPtr_base
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void
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Assert_NoQueryNeeded()
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{
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if ( !mRawPtr )
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return;
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T* query_result = 0;
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nsresult status = CallQueryInterface(mRawPtr, &query_result);
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NS_ASSERTION(query_result == mRawPtr, "QueryInterface needed");
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if ( NS_SUCCEEDED(status) )
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NSCAP_RELEASE(query_result);
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if ( mRawPtr )
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{
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T* query_result = 0;
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nsresult status = CallQueryInterface(mRawPtr, &query_result);
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NS_ASSERTION(query_result == mRawPtr, "QueryInterface needed");
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if ( NS_SUCCEEDED(status) )
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NSCAP_RELEASE(query_result);
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}
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}
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#define NSCAP_ASSERT_NO_QUERY_NEEDED(); Assert_NoQueryNeeded();
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#else
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#define NSCAP_ASSERT_NO_QUERY_NEEDED();
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#endif
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nsCOMPtr( const nsDontAddRef<T>& aSmartPtr )
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: nsCOMPtr_base(aSmartPtr.mRawPtr)
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: NSCAP_CTOR_BASE(aSmartPtr.mRawPtr)
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{
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#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
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Assert_NoQueryNeeded();
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#endif
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NSCAP_ASSERT_NO_QUERY_NEEDED();
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}
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nsCOMPtr( const nsDontQueryInterface<T>& aSmartPtr )
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: nsCOMPtr_base(aSmartPtr.mRawPtr)
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: NSCAP_CTOR_BASE(aSmartPtr.mRawPtr)
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{
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if ( mRawPtr )
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NSCAP_ADDREF(mRawPtr);
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#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
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Assert_NoQueryNeeded();
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#endif
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NSCAP_ASSERT_NO_QUERY_NEEDED();
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}
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nsCOMPtr( const nsCOMPtr<T>& aSmartPtr )
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: nsCOMPtr_base(aSmartPtr.mRawPtr)
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: NSCAP_CTOR_BASE(aSmartPtr.mRawPtr)
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{
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if ( mRawPtr )
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NSCAP_ADDREF(mRawPtr);
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}
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#ifdef NSCAP_FEATURE_ALLOW_RAW_POINTERS
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nsCOMPtr( T* aRawPtr )
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: nsCOMPtr_base(aRawPtr)
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: NSCAP_CTOR_BASE(aRawPtr)
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{
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if ( mRawPtr )
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NSCAP_ADDREF(mRawPtr);
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#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
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Assert_NoQueryNeeded();
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#endif
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NSCAP_ASSERT_NO_QUERY_NEEDED();
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}
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nsCOMPtr<T>&
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operator=( T* rhs )
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{
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assign_with_AddRef(rhs);
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#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
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Assert_NoQueryNeeded();
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#endif
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NSCAP_ASSERT_NO_QUERY_NEEDED();
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return *this;
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}
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#endif
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nsCOMPtr<T>&
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operator=( const nsQueryInterface& rhs )
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@ -480,9 +470,8 @@ class nsCOMPtr : private nsCOMPtr_base
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if ( mRawPtr )
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NSCAP_RELEASE(mRawPtr);
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mRawPtr = rhs.mRawPtr;
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#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
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Assert_NoQueryNeeded();
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#endif
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NSCAP_ASSERT_NO_QUERY_NEEDED();
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return *this;
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}
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@ -490,9 +479,7 @@ class nsCOMPtr : private nsCOMPtr_base
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operator=( const nsDontQueryInterface<T>& rhs )
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{
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assign_with_AddRef(rhs.mRawPtr);
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#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
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Assert_NoQueryNeeded();
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#endif
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NSCAP_ASSERT_NO_QUERY_NEEDED();
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return *this;
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}
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@ -560,6 +547,49 @@ class nsCOMPtr : private nsCOMPtr_base
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}
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};
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#ifdef NSCAP_FEATURE_DEBUG_PTR_TYPES
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template <class T>
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void
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nsCOMPtr<T>::assign_with_AddRef( nsISupports* rawPtr )
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{
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if ( rawPtr )
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NSCAP_ADDREF(rawPtr);
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if ( mRawPtr )
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NSCAP_RELEASE(mRawPtr);
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mRawPtr = NS_REINTERPRET_CAST(T*, rawPtr);
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}
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template <class T>
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void
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nsCOMPtr<T>::assign_with_QueryInterface( nsISupports* rawPtr, const nsIID& iid, nsresult* result )
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{
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nsresult status = NS_ERROR_NULL_POINTER;
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if ( !rawPtr || !NS_SUCCEEDED( status = rawPtr->QueryInterface(iid, NSCAP_REINTERPRET_CAST(void**, &rawPtr)) ) )
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rawPtr = 0;
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if ( mRawPtr )
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NSCAP_RELEASE(mRawPtr);
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mRawPtr = NS_REINTERPRET_CAST(T*, rawPtr);
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if ( result )
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*result = status;
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}
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|
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template <class T>
|
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void**
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nsCOMPtr<T>::begin_assignment()
|
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{
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if ( mRawPtr )
|
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{
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NSCAP_RELEASE(mRawPtr);
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mRawPtr = 0;
|
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}
|
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|
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return NSCAP_REINTERPRET_CAST(void**, &mRawPtr);
|
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}
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#endif
|
||||
|
||||
|
||||
template <class T>
|
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class nsGetterAddRefs
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|
|
@ -577,6 +607,8 @@ class nsGetterAddRefs
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When initialized with a |nsCOMPtr|, as in the example above, it returns
|
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a |void**| (or |T**| if needed) that the outer call (|QueryInterface| in this
|
||||
case) can fill in.
|
||||
|
||||
This type should be a nested class inside |nsCOMPtr<T>|.
|
||||
*/
|
||||
{
|
||||
public:
|
||||
|
|
@ -620,8 +652,6 @@ getter_AddRefs( nsCOMPtr<T>& aSmartPtr )
|
|||
}
|
||||
|
||||
|
||||
#ifdef NSCAP_FEATURE_ALLOW_COMPARISONS
|
||||
|
||||
class NSCAP_Zero;
|
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|
||||
template <class T, class U>
|
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|
|
@ -715,8 +745,6 @@ SameCOMIdentity( nsISupports* lhs, nsISupports* rhs )
|
|||
return nsCOMPtr<nsISupports>( do_QueryInterface(lhs) ) == nsCOMPtr<nsISupports>( do_QueryInterface(rhs) );
|
||||
}
|
||||
|
||||
#endif // defined(NSCAP_FEATURE_ALLOW_COMPARISONS)
|
||||
|
||||
|
||||
template <class DestinationType>
|
||||
inline
|
||||
|
|
|
|||
|
|
@ -69,7 +69,6 @@
|
|||
|
||||
+ Improve internal documentation
|
||||
+ mention *&
|
||||
+ alternatives for comparison
|
||||
+ do_QueryInterface
|
||||
*/
|
||||
|
||||
|
|
@ -114,12 +113,19 @@
|
|||
// under VC++, we win by inlining StartAssignment
|
||||
#endif
|
||||
|
||||
#define NSCAP_FEATURE_ALLOW_RAW_POINTERS
|
||||
#define NSCAP_FEATURE_ALLOW_COMPARISONS
|
||||
#define NSCAP_FEATURE_FACTOR_DESTRUCTOR
|
||||
|
||||
#ifdef NS_DEBUG
|
||||
#define NSCAP_FEATURE_TEST_DONTQUERY_CASES
|
||||
#define NSCAP_FEATURE_DEBUG_PTR_TYPES
|
||||
#endif
|
||||
|
||||
#ifndef NS_DEBUG
|
||||
#undef NSCAP_FEATURE_DEBUG_PTR_TYPES
|
||||
#endif
|
||||
|
||||
#ifdef NSCAP_FEATURE_DEBUG_PTR_TYPES
|
||||
#undef NSCAP_FEATURE_FACTOR_DESTRUCTOR
|
||||
#endif
|
||||
|
||||
|
||||
|
|
@ -189,7 +195,8 @@ class nsDerivedSafe : public T
|
|||
void operator delete( void*, size_t ); // NOT TO BE IMPLEMENTED
|
||||
// declaring |operator delete| private makes calling delete on an interface pointer a compile error
|
||||
|
||||
nsDerivedSafe<T>& operator=( const nsDerivedSafe<T>& ); // NOT TO BE IMPLEMENTED
|
||||
nsDerivedSafe<T>& operator=( const nsDerivedSafe<T>& ); // NOT TO BE IMPLEMENTED
|
||||
// nsDerivedSafe<T>& operator=( const T& ); // NOT TO BE IMPLEMENTED
|
||||
// you may not call |operator=()| through a dereferenced |nsCOMPtr|, because you'd get the wrong one
|
||||
};
|
||||
|
||||
|
|
@ -219,6 +226,8 @@ struct nsDontQueryInterface
|
|||
...
|
||||
|
||||
DO NOT USE THIS TYPE DIRECTLY IN YOUR CODE. Use |dont_QueryInterface()| instead.
|
||||
|
||||
This type should be a nested class inside |nsCOMPtr<T>|.
|
||||
*/
|
||||
{
|
||||
explicit
|
||||
|
|
@ -268,26 +277,7 @@ do_QueryInterface( nsISupports* aRawPtr, nsresult* error = 0 )
|
|||
return nsQueryInterface(aRawPtr, error);
|
||||
}
|
||||
|
||||
#ifdef NSCAP_FEATURE_ALLOW_RAW_POINTERS
|
||||
|
||||
#define null_nsCOMPtr() (0)
|
||||
|
||||
#else
|
||||
|
||||
inline
|
||||
const nsQueryInterface
|
||||
null_nsCOMPtr()
|
||||
/*
|
||||
You can use this to assign |NULL| into an |nsCOMPtr|, e.g.,
|
||||
|
||||
myPtr = null_nsCOMPtr();
|
||||
*/
|
||||
{
|
||||
typedef nsISupports* nsISupports_Ptr;
|
||||
return nsQueryInterface(nsISupports_Ptr(0));
|
||||
}
|
||||
|
||||
#endif
|
||||
#define null_nsCOMPtr() (0)
|
||||
|
||||
|
||||
|
||||
|
|
@ -303,6 +293,8 @@ struct nsDontAddRef
|
|||
|dont_AddRef()| instead.
|
||||
|
||||
See also |getter_AddRefs()|, |dont_AddRef()|, and |class nsGetterAddRefs|.
|
||||
|
||||
This type should be a nested class inside |nsCOMPtr<T>|.
|
||||
*/
|
||||
{
|
||||
explicit
|
||||
|
|
@ -354,14 +346,6 @@ class nsCOMPtr_base
|
|||
NS_EXPORT ~nsCOMPtr_base();
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
~nsCOMPtr_base()
|
||||
{
|
||||
if ( mRawPtr )
|
||||
NSCAP_RELEASE(mRawPtr);
|
||||
}
|
||||
#endif
|
||||
|
||||
NS_EXPORT void assign_with_AddRef( nsISupports* );
|
||||
NS_EXPORT void assign_with_QueryInterface( nsISupports*, const nsIID&, nsresult* );
|
||||
NS_EXPORT void** begin_assignment();
|
||||
|
|
@ -373,19 +357,28 @@ class nsCOMPtr_base
|
|||
|
||||
|
||||
template <class T>
|
||||
class nsCOMPtr : private nsCOMPtr_base
|
||||
/*
|
||||
...
|
||||
*/
|
||||
class nsCOMPtr
|
||||
#ifndef NSCAP_FEATURE_DEBUG_PTR_TYPES
|
||||
: private nsCOMPtr_base
|
||||
#endif
|
||||
{
|
||||
#ifdef NSCAP_FEATURE_DEBUG_PTR_TYPES
|
||||
private:
|
||||
void assign_with_AddRef( nsISupports* );
|
||||
void assign_with_QueryInterface( nsISupports*, const nsIID&, nsresult* );
|
||||
void** begin_assignment();
|
||||
|
||||
private:
|
||||
T* mRawPtr;
|
||||
|
||||
#define NSCAP_CTOR_BASE(x) mRawPtr(x)
|
||||
#else
|
||||
#define NSCAP_CTOR_BASE(x) nsCOMPtr_base(x)
|
||||
#endif
|
||||
|
||||
public:
|
||||
typedef T element_type;
|
||||
|
||||
#if 0
|
||||
typedef nsDerivedSafe<T>* safe_ptr_t;
|
||||
typedef T* safe_ptr_t;
|
||||
#endif
|
||||
|
||||
#ifndef NSCAP_FEATURE_FACTOR_DESTRUCTOR
|
||||
~nsCOMPtr()
|
||||
{
|
||||
|
|
@ -395,13 +388,13 @@ class nsCOMPtr : private nsCOMPtr_base
|
|||
#endif
|
||||
|
||||
nsCOMPtr()
|
||||
// : nsCOMPtr_base(0)
|
||||
: NSCAP_CTOR_BASE(0)
|
||||
{
|
||||
// nothing else to do here
|
||||
}
|
||||
|
||||
nsCOMPtr( const nsQueryInterface& aSmartPtr )
|
||||
// : nsCOMPtr_base(0)
|
||||
: NSCAP_CTOR_BASE(0)
|
||||
{
|
||||
assign_with_QueryInterface(aSmartPtr.mRawPtr, nsCOMTypeInfo<T>::GetIID(), aSmartPtr.mErrorPtr);
|
||||
}
|
||||
|
|
@ -410,62 +403,59 @@ class nsCOMPtr : private nsCOMPtr_base
|
|||
void
|
||||
Assert_NoQueryNeeded()
|
||||
{
|
||||
if ( !mRawPtr )
|
||||
return;
|
||||
T* query_result = 0;
|
||||
nsresult status = CallQueryInterface(mRawPtr, &query_result);
|
||||
NS_ASSERTION(query_result == mRawPtr, "QueryInterface needed");
|
||||
if ( NS_SUCCEEDED(status) )
|
||||
NSCAP_RELEASE(query_result);
|
||||
if ( mRawPtr )
|
||||
{
|
||||
T* query_result = 0;
|
||||
nsresult status = CallQueryInterface(mRawPtr, &query_result);
|
||||
NS_ASSERTION(query_result == mRawPtr, "QueryInterface needed");
|
||||
if ( NS_SUCCEEDED(status) )
|
||||
NSCAP_RELEASE(query_result);
|
||||
}
|
||||
}
|
||||
|
||||
#define NSCAP_ASSERT_NO_QUERY_NEEDED(); Assert_NoQueryNeeded();
|
||||
#else
|
||||
#define NSCAP_ASSERT_NO_QUERY_NEEDED();
|
||||
#endif
|
||||
|
||||
nsCOMPtr( const nsDontAddRef<T>& aSmartPtr )
|
||||
: nsCOMPtr_base(aSmartPtr.mRawPtr)
|
||||
: NSCAP_CTOR_BASE(aSmartPtr.mRawPtr)
|
||||
{
|
||||
#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
|
||||
Assert_NoQueryNeeded();
|
||||
#endif
|
||||
NSCAP_ASSERT_NO_QUERY_NEEDED();
|
||||
}
|
||||
|
||||
nsCOMPtr( const nsDontQueryInterface<T>& aSmartPtr )
|
||||
: nsCOMPtr_base(aSmartPtr.mRawPtr)
|
||||
: NSCAP_CTOR_BASE(aSmartPtr.mRawPtr)
|
||||
{
|
||||
if ( mRawPtr )
|
||||
NSCAP_ADDREF(mRawPtr);
|
||||
#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
|
||||
Assert_NoQueryNeeded();
|
||||
#endif
|
||||
|
||||
NSCAP_ASSERT_NO_QUERY_NEEDED();
|
||||
}
|
||||
|
||||
nsCOMPtr( const nsCOMPtr<T>& aSmartPtr )
|
||||
: nsCOMPtr_base(aSmartPtr.mRawPtr)
|
||||
: NSCAP_CTOR_BASE(aSmartPtr.mRawPtr)
|
||||
{
|
||||
if ( mRawPtr )
|
||||
NSCAP_ADDREF(mRawPtr);
|
||||
}
|
||||
|
||||
#ifdef NSCAP_FEATURE_ALLOW_RAW_POINTERS
|
||||
nsCOMPtr( T* aRawPtr )
|
||||
: nsCOMPtr_base(aRawPtr)
|
||||
: NSCAP_CTOR_BASE(aRawPtr)
|
||||
{
|
||||
if ( mRawPtr )
|
||||
NSCAP_ADDREF(mRawPtr);
|
||||
#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
|
||||
Assert_NoQueryNeeded();
|
||||
#endif
|
||||
|
||||
NSCAP_ASSERT_NO_QUERY_NEEDED();
|
||||
}
|
||||
|
||||
nsCOMPtr<T>&
|
||||
operator=( T* rhs )
|
||||
{
|
||||
assign_with_AddRef(rhs);
|
||||
#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
|
||||
Assert_NoQueryNeeded();
|
||||
#endif
|
||||
NSCAP_ASSERT_NO_QUERY_NEEDED();
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
|
||||
nsCOMPtr<T>&
|
||||
operator=( const nsQueryInterface& rhs )
|
||||
|
|
@ -480,9 +470,8 @@ class nsCOMPtr : private nsCOMPtr_base
|
|||
if ( mRawPtr )
|
||||
NSCAP_RELEASE(mRawPtr);
|
||||
mRawPtr = rhs.mRawPtr;
|
||||
#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
|
||||
Assert_NoQueryNeeded();
|
||||
#endif
|
||||
|
||||
NSCAP_ASSERT_NO_QUERY_NEEDED();
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
|
@ -490,9 +479,7 @@ class nsCOMPtr : private nsCOMPtr_base
|
|||
operator=( const nsDontQueryInterface<T>& rhs )
|
||||
{
|
||||
assign_with_AddRef(rhs.mRawPtr);
|
||||
#ifdef NSCAP_FEATURE_TEST_DONTQUERY_CASES
|
||||
Assert_NoQueryNeeded();
|
||||
#endif
|
||||
NSCAP_ASSERT_NO_QUERY_NEEDED();
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
|
@ -560,6 +547,49 @@ class nsCOMPtr : private nsCOMPtr_base
|
|||
}
|
||||
};
|
||||
|
||||
#ifdef NSCAP_FEATURE_DEBUG_PTR_TYPES
|
||||
template <class T>
|
||||
void
|
||||
nsCOMPtr<T>::assign_with_AddRef( nsISupports* rawPtr )
|
||||
{
|
||||
if ( rawPtr )
|
||||
NSCAP_ADDREF(rawPtr);
|
||||
if ( mRawPtr )
|
||||
NSCAP_RELEASE(mRawPtr);
|
||||
mRawPtr = NS_REINTERPRET_CAST(T*, rawPtr);
|
||||
}
|
||||
|
||||
template <class T>
|
||||
void
|
||||
nsCOMPtr<T>::assign_with_QueryInterface( nsISupports* rawPtr, const nsIID& iid, nsresult* result )
|
||||
{
|
||||
nsresult status = NS_ERROR_NULL_POINTER;
|
||||
if ( !rawPtr || !NS_SUCCEEDED( status = rawPtr->QueryInterface(iid, NSCAP_REINTERPRET_CAST(void**, &rawPtr)) ) )
|
||||
rawPtr = 0;
|
||||
|
||||
if ( mRawPtr )
|
||||
NSCAP_RELEASE(mRawPtr);
|
||||
|
||||
mRawPtr = NS_REINTERPRET_CAST(T*, rawPtr);
|
||||
|
||||
if ( result )
|
||||
*result = status;
|
||||
}
|
||||
|
||||
template <class T>
|
||||
void**
|
||||
nsCOMPtr<T>::begin_assignment()
|
||||
{
|
||||
if ( mRawPtr )
|
||||
{
|
||||
NSCAP_RELEASE(mRawPtr);
|
||||
mRawPtr = 0;
|
||||
}
|
||||
|
||||
return NSCAP_REINTERPRET_CAST(void**, &mRawPtr);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
template <class T>
|
||||
class nsGetterAddRefs
|
||||
|
|
@ -577,6 +607,8 @@ class nsGetterAddRefs
|
|||
When initialized with a |nsCOMPtr|, as in the example above, it returns
|
||||
a |void**| (or |T**| if needed) that the outer call (|QueryInterface| in this
|
||||
case) can fill in.
|
||||
|
||||
This type should be a nested class inside |nsCOMPtr<T>|.
|
||||
*/
|
||||
{
|
||||
public:
|
||||
|
|
@ -620,8 +652,6 @@ getter_AddRefs( nsCOMPtr<T>& aSmartPtr )
|
|||
}
|
||||
|
||||
|
||||
#ifdef NSCAP_FEATURE_ALLOW_COMPARISONS
|
||||
|
||||
class NSCAP_Zero;
|
||||
|
||||
template <class T, class U>
|
||||
|
|
@ -715,8 +745,6 @@ SameCOMIdentity( nsISupports* lhs, nsISupports* rhs )
|
|||
return nsCOMPtr<nsISupports>( do_QueryInterface(lhs) ) == nsCOMPtr<nsISupports>( do_QueryInterface(rhs) );
|
||||
}
|
||||
|
||||
#endif // defined(NSCAP_FEATURE_ALLOW_COMPARISONS)
|
||||
|
||||
|
||||
template <class DestinationType>
|
||||
inline
|
||||
|
|
|
|||
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Ссылка в новой задаче