Make all objects in the WebKit2 API inherit from a single base class

[Sam Weinig]

We should make all WK objects in the WebKit2 API inherit from a single base class.

[Sam Weinig]

Created attachment 62783 [details]
Patch

[WebKit Review Bot]

Attachment 62783 [details] did not pass style-queue:

Failed to run "['WebKitTools/Scripts/check-webkit-style']" exit_code: 1
WebKit2/UIProcess/API/C/WKAPICast.h:59:  More than one command on the same line  [whitespace/newline] [4]
WebKit2/UIProcess/API/C/WKAPICast.h:60:  More than one command on the same line  [whitespace/newline] [4]
WebKit2/UIProcess/API/C/WKAPICast.h:73:  More than one command on the same line  [whitespace/newline] [4]
WebKit2/UIProcess/API/C/WKAPICast.h:120:  Extra space before last semicolon. If this should be an empty statement, use { } instead.  [whitespace/semicolon] [5]
Total errors found: 4 in 30 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Darin Adler]

Comment on attachment 62783 [details]
Patch

Patch says what it does, but not why.

Why is inheriting from a single base class better?

[Sam Weinig]

(In reply to comment #3)
> (From update of attachment 62783 [details])
> Patch says what it does, but not why.
> 
> Why is inheriting from a single base class better?

The intent is to allow for a CF-style base type (CFTypeRef) so that our message passing API can be defined as something like WKContextPostMessageToInjectedBundle(WKStringRef name, WKTypeRef message);

Then you could send a message which is either a WKStringRef or a WKArrayRef or a WKPageRef event.

[Sam Weinig]

Landed in r64232.