michael@0: // Test02.cpp
michael@0: 
michael@0: #include "nsIDOMNode.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsString.h"
michael@0: 
michael@0: NS_DEF_PTR(nsIDOMNode);
michael@0: 
michael@0: 	/*
michael@0: 		This test file compares the generated code size of similar functions between raw
michael@0:                 COM interface pointers (|AddRef|ing and |Release|ing by hand) and |nsCOMPtr|s.
michael@0: 
michael@0: 		Function size results were determined by examining dissassembly of the generated code.
michael@0: 		mXXX is the size of the generated code on the Macintosh.  wXXX is the size on Windows.
michael@0: 		For these tests, all reasonable optimizations were enabled and exceptions were
michael@0: 		disabled (just as we build for release).
michael@0: 
michael@0: 		The tests in this file explore more complicated functionality: assigning a pointer
michael@0:                 to be reference counted into a [raw, nsCOMPtr] object using |QueryInterface|;
michael@0: 		ensuring that it is |AddRef|ed and |Release|d appropriately; calling through the pointer
michael@0: 		to a function supplied by the underlying COM interface.  The tests in this file expand
michael@0: 		on the tests in "Test01.cpp" by adding |QueryInterface|.
michael@0: 
michael@0: 		Windows:
michael@0: 			raw01									 52
michael@0: 			nsCOMPtr							 63
michael@0: 			raw										 66
michael@0: 			nsCOMPtr*							 68
michael@0: 
michael@0: 		Macintosh:
michael@0: 			nsCOMPtr							120 	(1.0000)
michael@0: 			Raw01									128		(1.1429)	i.e., 14.29% bigger than nsCOMPtr
michael@0: 			Raw00									144		(1.2000)
michael@0: 	*/
michael@0: 
michael@0: 
michael@0: void // nsresult
michael@0: Test02_Raw00( nsISupports* aDOMNode, nsString* aResult )
michael@0: 		// m144, w66
michael@0: 	{
michael@0: // -- the following code is assumed, but is commented out so we compare only
michael@0: //		 the relevent generated code
michael@0: 
michael@0: //		if ( !aDOMNode )
michael@0: //			return NS_ERROR_NULL_POINTER;
michael@0: 
michael@0: 		nsIDOMNode* node = 0;
michael@0: 		nsresult status = aDOMNode->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)&node);
michael@0: 		if ( NS_SUCCEEDED(status) )
michael@0: 			{
michael@0: 				node->GetNodeName(*aResult);
michael@0: 			}
michael@0: 
michael@0: 		NS_IF_RELEASE(node);
michael@0: 
michael@0: //		return status;
michael@0: 	}
michael@0: 
michael@0: void // nsresult
michael@0: Test02_Raw01( nsISupports* aDOMNode, nsString* aResult )
michael@0: 		// m128, w52
michael@0: 	{
michael@0: //		if ( !aDOMNode )
michael@0: //			return NS_ERROR_NULL_POINTER;
michael@0: 
michael@0: 		nsIDOMNode* node;
michael@0:                 nsresult status = aDOMNode->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)&node);
michael@0: 		if ( NS_SUCCEEDED(status) )
michael@0: 			{
michael@0: 				node->GetNodeName(*aResult);
michael@0: 				NS_RELEASE(node);
michael@0: 			}
michael@0: 
michael@0: //		return status;
michael@0: 	}
michael@0: 
michael@0: void // nsresult
michael@0: Test02_nsCOMPtr( nsISupports* aDOMNode, nsString* aResult )
michael@0: 		// m120, w63/68
michael@0: 	{
michael@0: 		nsresult status;
michael@0: 		nsCOMPtr<nsIDOMNode> node = do_QueryInterface(aDOMNode, &status);
michael@0: 		
michael@0: 		if ( node )
michael@0: 			node->GetNodeName(*aResult);
michael@0: 
michael@0: //		return status;
michael@0: 	}
michael@0: