Re: Syntactic sugar to access arrays and hashes in Objective-C

[John Holdsworth]

Hi David,


It turns out the Apple gcc compiler supports mixing C++ and Objective-C

require the compiler to have knowledge of Apple's XCode core libraries.

I've attached the source, its a rather odd hybrid to say the least:

The documentation is here:
http://johnholdsworth.com/objcpp/html

Thanks for the reply, I've managed to find a solution for my needs in the end. in the same source file so I've been able to implement what I was looking for using operator overloading - a much more flexible solution that doesn't I need to write the unit tests now.. I'm not sure its saved me any time in reality but it was an interesting digression and hopefully it will be useful to somebody :)

objcpp.h
Description: Binary data

Cheers,

John Holdsworth

On 8 Apr 2009, at 14:34, David Ayers wrote:

Am Samstag, den 21.03.2009, 11:59 +0100 schrieb John Holdsworth:

I was wondering if it would be a useful extension to Objective-C
expand the [] operator
to support array and hash references to NSArray and NSDictionary
classes directly to
greatly improve the readability of code:

I would have with this feature with gcc proper is that the ObjC front
end would have to learn about the semantics of "NSArray" and
"NSDictionary" which are actually not part of the language but part of
an external library.

Now gcc already supports the -fconstant-string-class option as one way

would like adding options with all these semantics from a foreign
library into the language implementation.


that es being currently added: http://gcc.gnu.org/wiki/plugins

Cheers,
David

I'm not an ObjC front end maintainer and have no authority but one issue to embed knowledge about an external library into an executable. But I Maybe this could be done more elegantly with plugin infrastructure that