[MacRuby-devel] MacRuby class inside obj-c

[Louis-Philippe]

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

2010/5/18 Laurent Sansonetti <lsansonetti at 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 at 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 at lists.macosforge.org
>> > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>>
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>>
>
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