Re: Questions about anonymous functions and classes/functions declarations

Gabriele Farina wrote:
> Where I have to store them?? I have to have a table only
> for anonymous functions?? Someone asks to me to treat them as
> constants, but I can't understanda how to develop it.


They are "constants" just like any other function. In fact you can
treat them like any ordinary function. They just happen not to have a
name that the programmers knows.


> Now there is another questions: I'd like to give the users the ability
> to edit a class definition at runtime. For example:
>
> test = class()
> input value
>
> if value == 10
> test.a_new_method = function(a) print a
> else
> test.a_new_method = function(a) print 'Your wrong the number, you
> inserted'.append(a)
>
> instance = new test()
> instance.a_new_method(value)
>
> test = class() defines a new class, where, dynamically, I add a new method
> looking at a variable value given as input.
> As you can see I add new method at runtime.
>
> Do you think this can be useful


Yes, but it's dangerous.
Reading the source code isn't enough to understand what the class does -
    unless you restrict who can modify the class (but even then I'd
recommend against it - the human mind isn't built for understanding
self-modifying code).


  > and can be implemented??
  > There could be any
  > problems??


Yes, easily (for some suitable definition of "easy").
You'd have to plan the run-time data structures for that, though, and
that may interfere with other design goals.


Regards,
Jo

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