And by trying a bit I see blocks are not supported,

am I right?

2010/5/18 Laurent Sansonetti <lsansonetti@apple.com>

Indeed, methods with normal arities (0..n arguments) conform to the Objective-C ABI, so using the bracket syntax just works. But for Ruby methods using complex arities (like splat or optional arguments), you will likely get a crash. This is why the -performRubySelector: method was introduced. It is better to always use that method, because it always works (in theory).

Laurent

On May 18, 2010, at 3:05 PM, Louis-Philippe wrote:

great!

I can even seem to send messages directly to my MacRuby classes and instances...

like:

id obj = [Foo new:@"objc"];

and

[obj hello];

but in the second case I get a compiler warning: "No -hello method found"??

2010/5/18 Laurent Sansonetti <lsansonetti@apple.com>

Hi Louis-Philippe,

Assuming MacRuby code defines:

class Foo
 def initialize(message)
   @message
 end
 def hello
   puts "hello #{message}"
 end
end

You should be able to retrieve a reference to Foo using:

Class Foo = [[MacRuby sharedRuntime] evaluateString:@"Foo"];

Or, more simply:

Class foo = NSClassFromString(@"Foo");

You might want to use the first way in case the class has a complex path (if it's defined inside modules, like "Foo::Bar").

Later, you can send messages to it.

id obj = [Foo performRubySelector:@selector(new:) withArguments: @"objc", nil];
[obj performRubySelector:@selector(hello)];

Laurent

On May 18, 2010, at 2:31 PM, Louis-Philippe wrote:

> Hi,
> I don't know if this is the good list to ask this question as it is my first...
> So,
>
> I saw how I can have a MacRuby cocoa app, importing objective-c classes.
> I can't find info on how to do the opposite...  having an Objective-C cocoa app, importing and using MacRuby Classes...
>
> All I managed to do is to "evaluateFileAtPath:" and "evaluateString:"
>
> Thanks!
>
> L-P

> _______________________________________________
> MacRuby-devel mailing list
> MacRuby-devel@lists.macosforge.org
> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel

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