On 2009-12-14 11:41:58 -0500, Andrei Alexandrescu
<[email protected]> said:
Adam D. Ruppe wrote:
On Mon, Dec 14, 2009 at 07:24:11AM -0800, Andrei Alexandrescu wrote:
D2 will include properties that are understood by the compiler. We
currently don't have a design for user-defined properties.
Can I suggest something very simple: make them accessible from __traits,
and leave the rest to the library. Accept @anything_at_all.
@myprop int a;
assert(__traits(getAnnotations, a) == [ "myprop" ]);
I just had a little related idea. If you (Eldar) put the property in
the naming convention, then you may be able to simplify things by using
__traits(allMembers, Type), which works now.
For example: all signals start with "signal_" and all slots start with "slot_".
Would that work?
It could work for simple things, but it doesn't scale well. If I wanted
to use attributes for my D/Objective-C bridge, I'd need them to be
parametrized:
@objc("sizeWithFont:forWidth:lineBreakMode:")
CGSize sizeWithFont(UIFont font, CGFloat width, UILineBreakMode
lineBreakMode);
Currently, this would be:
CGSize sizeWithFont(UIFont font, CGFloat width, UILineBreakMode
lineBreakMode);
mixin ObjcBindMethod(sizeWithFont, CGSize,
"sizeWithFont:forWidth:lineBreakMode:", UIFont, CGFloat,
UILineBreakMode);
With a naming convention, it'd have to be something like:
CGSize objc_sizeWithFont_forWidth_lineBreakMode_(UIFont font, CGFloat
width, UILineBreakMode lineBreakMode);
Shorter to declare, but a pain to use.
--
Michel Fortin
[email protected]
http://michelf.com/
