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 // Test02.cpp

 #include "nsIDOMNode.h"

 #include "nsCOMPtr.h"

 #include "nsString.h"

 NS_DEF_PTR(nsIDOMNode);

 	/*

 		This test file compares the generated code size of similar functions between raw

                 COM interface pointers (|AddRef|ing and |Release|ing by hand) and |nsCOMPtr|s.

 		Function size results were determined by examining dissassembly of the generated code.

 		mXXX is the size of the generated code on the Macintosh.  wXXX is the size on Windows.

 		For these tests, all reasonable optimizations were enabled and exceptions were

 		disabled (just as we build for release).

 		The tests in this file explore more complicated functionality: assigning a pointer

                 to be reference counted into a [raw, nsCOMPtr] object using |QueryInterface|;

 		ensuring that it is |AddRef|ed and |Release|d appropriately; calling through the pointer

 		to a function supplied by the underlying COM interface.  The tests in this file expand

 		on the tests in "Test01.cpp" by adding |QueryInterface|.

 		Windows:

 			raw01									 52

 			nsCOMPtr							 63

 			raw										 66

 			nsCOMPtr*							 68

 		Macintosh:

 			nsCOMPtr							120 	(1.0000)

 			Raw01									128		(1.1429)	i.e., 14.29% bigger than nsCOMPtr

 			Raw00									144		(1.2000)

 	*/

 void // nsresult

 Test02_Raw00( nsISupports* aDOMNode, nsString* aResult )

 		// m144, w66

 	{

 // -- the following code is assumed, but is commented out so we compare only

 //		 the relevent generated code

 //		if ( !aDOMNode )

 //			return NS_ERROR_NULL_POINTER;

 		nsIDOMNode* node = 0;

 		nsresult status = aDOMNode->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)&node);

 		if ( NS_SUCCEEDED(status) )

 			{

 				node->GetNodeName(*aResult);

 			}

 		NS_IF_RELEASE(node);

 //		return status;

 	}

 void // nsresult

 Test02_Raw01( nsISupports* aDOMNode, nsString* aResult )

 		// m128, w52

 	{

 //		if ( !aDOMNode )

 //			return NS_ERROR_NULL_POINTER;

 		nsIDOMNode* node;

                 nsresult status = aDOMNode->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)&node);

 		if ( NS_SUCCEEDED(status) )

 			{

 				node->GetNodeName(*aResult);

 				NS_RELEASE(node);

 			}

 //		return status;

 	}

 void // nsresult

 Test02_nsCOMPtr( nsISupports* aDOMNode, nsString* aResult )

 		// m120, w63/68

 	{

 		nsresult status;

 		nsCOMPtr<nsIDOMNode> node = do_QueryInterface(aDOMNode, &status);

 		if ( node )

 			node->GetNodeName(*aResult);

 //		return status;

 	}