I search around and tried overriding the \"for\" keyword but I found nothing. I am trying something like that:
I\'ve seen thi开发者_StackOverflow中文版s recently and now I can\'t find it … How do you set the class of an object to something else?
Using Ruby I know you can get pretty creative with how you name your methods. For instance in rails you have .find_by_this_and_that.
EDIT: Note that this is a REALLY BAD idea to do in production code. This was just an interesting thing for me. Don\'t do this at home!
OK, I\'ll admit upfront this is a mega kludge and that I could definately implement this better.开发者_Python百科 It\'s only morbid curiosity that\'s driving me to find out how I could do this.
After reading C++ compile-time string hashing with Boost.MPL, and considering a problem I have, the following came to my mind.
Basically, given a template class like this: template< class Value > class Holder { }; I would like to be able to discover the type Value for a given Holder class. I thought that I would be
in Pharo, how can I find the currently evaluating s开发者_如何学Gotack?Well, in fact, the issue aint that simple: thisContext can be a quite expensive operation, compared to like a message send.
I\'m exploiting the behavior of the constructors of C++ global variables to run code at startup in a simple manner. It\'s a very easy concept but a little difficult to explain so let me just paste the
I\'m trying to do an instance_eval followed by a attr_accessor inside initialize, and I keep 开发者_开发知识库getting this: ``initialize\': undefined method \'attr_accessor\'`. Why isn\'t this working
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