Re: [F-Script-talk] Dictionary and a shell command wanted :)

[Philippe M. <pm...@ac...>]

Le 25 ao=FBt 06 =E0 21:00, Giovanni Giorgi a =E9crit :

>
> On 24/ago/06, at 12:07, Philippe Mougin wrote:
>
>>
>>> NSObject subclass:'MyClass' instanceVariableNames:'a b c'
>>   MyClass
>>
>>> MyClass setFSBlock:[:self :_cmd| 'Method ' ++ _cmd ++ ' called on '
>>   ++ self printString] asInstanceMethod:#method1
>>
>>> myInstance :=3D MyClass alloc init
>>
>>> myInstance method1
>>   'Method method1 called on <MyClass: 0x4bb69c0>'
>>
>> Using the setFSBlock... methods you can also add methods to existing
>> Cocoa classes.
> Nice!
> How can  access to instance variable inside methods block?
> I tried with (self a)
> without so much success.
> Even valueForKey: didn't work :|

Here is an example using KVC to access instance variables:

  > MyClass setFSBlock:[:self| self setValue:33 forKey:'a'. self =20
valueForKey:'a'] asInstanceMethod:#method1

  > myInstance method1
  33

--Philippe