Curious thoughts, regarding functional programming

[Jacob Carlborg]

On 2011-10-12 19:40, Simen Kjaeraas wrote:
> On Wed, 12 Oct 2011 19:00:56 +0200, Jacob Carlborg <doob at me.com> wrote:
>
>> On 2011-10-12 18:18, Gor Gyolchanyan wrote:
>>> You never know when exactly and in which conditions will that delegate
>>> get called. You can't decide to quit something you don't know anything
>>> about.
>>
>> If a function implements something similar to a loop I would like to
>> be able to abort it with a return just as you can with a loop built
>> into the language.
>>
>> void loop (void delegate () dg)
>> {
>> while (true)
>> dg();
>> }
>>
>> loop
>> {
>> if (someCondition)
>> return; // stops the loop
>> }
>
> However, a lot of code using this syntax would be more complex than what
> you indicate. Should it work simply as a break in the loop? What if it
> is a recursive function? There is a reason why opApply is designed the
> way it is.

This answer to a stack overflow question explains how it works in Ruby:

http://stackoverflow.com/questions/1402757/how-to-break-out-from-a-ruby-block#answer-1402764

-- 
/Jacob Carlborg