1 files changed, 87 insertions, 0 deletions
diff --git a/xpcom/tests/SizeTest02.cpp b/xpcom/tests/SizeTest02.cpp
new file mode 100644
index 0000000000..2673bbe70d
--- /dev/null
+++ b/xpcom/tests/SizeTest02.cpp
@@ -0,0 +1,87 @@
+// Test02.cpp
+
+#include "nsINode.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+
+NS_DEF_PTR(nsINode);
+
+/*
+        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;
+
+  nsINode* node = 0;
+  nsresult status =
+      aDOMNode->QueryInterface(NS_GET_IID(nsINode), (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;
+
+  nsINode* node;
+  nsresult status =
+      aDOMNode->QueryInterface(NS_GET_IID(nsINode), (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<nsINode> node = do_QueryInterface(aDOMNode, &status);
+
+  if (node) node->GetNodeName(*aResult);
+
+  //		return status;
+}