Bug 54764 – Remove redundant code in qt/WebCoreSupport

• Component: WebKit Qt
• Status: RESOLVED FIXED

[Fabrizio]

The source files NotificationPresenterClientQt.cpp and DumpRenderTreeSupportQt.cpp have redundant checks after static_cast.

In NotificationPresenterClientQt.cpp, the final "if()" is not needed:
=========================================================
    if (!context || context->isWorkerContext())
        return 0;

    Document* document = static_cast<Document*>(context);
    if (!document)
        return 0;
=========================================================

The context pointer has already been checked, so it must be non-NULL when the static_cast occurs.  Thus, document will not be NULL and the check is redundant.



Similarly, in DumpRenderTreeSupportQt.cpp:
=========================================================
    if (!coreNode || !coreNode->renderer())
        return false;

    HTMLInputElement* inputElement = static_cast<HTMLInputElement*>(coreNode);
    if (!inputElement)
        return false;
=========================================================

coreNode has already been checked and is non-NULL when the static_cast to HTMLInputElement* occurs.  The check after the cast is not needed.

[Fabrizio]

Created attachment 82995 [details]
remove redundant checks

[WebKit Commit Bot]

Comment on attachment 82995 [details]
remove redundant checks

Clearing flags on attachment: 82995

Committed r79098: <http://trac.webkit.org/changeset/79098>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Suresh Voruganti]

Please cherry pick the fix to Qtwebkit 2.1.x

[Ademar Reis]

I don't see the point of adding refactorings like this to a stable branch (qtwebkit-2.1.x). Removing from meta-bug. If it fixes a real problem, let me know.