1 files changed, 89 insertions, 0 deletions
diff --git a/xpcom/tests/SizeTest02.cpp b/xpcom/tests/SizeTest02.cpp
new file mode 100644
index 000000000..9fcd1a0ca
--- /dev/null
+++ b/xpcom/tests/SizeTest02.cpp
@@ -0,0 +1,89 @@
+// 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;
+	}
+