El mar, 28-01-2014 a las 14:32 -0800, Anders Carlsson escribió:
> Hi floks!
>
> I noticed that both the EFL port and GTK+ port use a
> COMPILE_ASSERT_MATCHING_ENUM macro to make sure that WebCore enum values map
> to API enum values correctly, for example:
>
> COMPILE_ASSERT_MATCHING_ENUM(WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED,
> NavigationTypeLinkClicked);
Yes, we preferred that way to keep the code simpler and avoid long
switches.
> This means that we can’t add new enums declarations (unless they’re added at
> the end) without breaking the build.
That's right, it's also true that most of the times enums are extended
adding new entries at the end.
> Instead of doing this (and then just blindly casting between the API layer
> and WebCore enum types), use conversion functions, like this (taken from
> WebKit2):
>
> > inline WebCore::PageVisibilityState
> > toPageVisibilityState(WKPageVisibilityState wkPageVisibilityState)
> > {
> > switch (wkPageVisibilityState) {
> > case kWKPageVisibilityStateVisible:
> > return WebCore::PageVisibilityStateVisible;
> > case kWKPageVisibilityStateHidden:
> > return WebCore::PageVisibilityStateHidden;
> > case kWKPageVisibilityStatePrerender:
> > return WebCore::PageVisibilityStatePrerender;
> > }
> >
> > ASSERT_NOT_REACHED();
> > return WebCore::PageVisibilityStateVisible;
> > }
>
> I plan to audit the Mac and Windows ports and look for places where we cast
> between API enum types and WebCore enum types, and I filed
>
> https://bugs.webkit.org/show_bug.cgi?id=127800 WebKitGTK+ should stop using
> COMPILE_ASSERT_MATCHING_ENUM macros
> https://bugs.webkit.org/show_bug.cgi?id=127801 EFL port should stop using
> COMPILE_ASSERT_MATCHING_ENUM macros
>
> for the Mac and EFL ports respectively. I’m happy to answer any questions
> about this.
Ok, let's fix this sooner rather than later, then.
> - Anders
>
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--
Carlos Garcia Campos
http://pgp.rediris.es:11371/pks/lookup?op=get&search=0xF3D322D0EC4582C3
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