Hi list,
being the Objective-C noob I am (having understood the technical side
but still getting to know a lot of best-practices) I stumbled upon the
use of forward-declarations in header-files today. Basically what it
does is this:
#include "PBGitTree.h"
@interface PBGitHistoryController : PBViewController {
[...]
PBGitTree* gitTree;
[...]
At that point in a header, the compiler doesn't need to know much about
PBGitTree, other than that it's a class. So instead of the #include-line
we could use:
@class PBGitTree;
and put the #include into the .m (implementation).
Why this should be done is described here:
http://vgable.com/blog/2008/12/04/cocoa-coding-style-minutia-all-forward-declarations-on-one-line-is-the-one-true-way/
under ("What is @class good for?")
If someone gave me some kind of green light I'd begin the laborious task
of rewriting all the files, and then do a test of the resulting
re-compile times. If someone has any technical objections to this
practice let me know as well.
Greetings,
Jojo
--
Johannes Gilger <[email protected]>
http://heipei.net
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