[Ruby2]how to dynamically attach :pre :post :wrap ro methods?

[gabriele renzi]

Hi gurus and nubys,

Loooking forward to the syntax

def foore
end

I wonder: could we add preconditions without resorting to syntax?

Would we have something like this:

myobj.methods.each do |m|
m.wrappre) {|*args| p args }
end

?
Sounds obvious and necessary to me, but I can't remeber talks about
this..


TIA

 

[Mauricio Fernández]

Would we have something like this:

myobj.methods.each do |m|
m.wrappre) {|*args| p args }
end

?
Sounds obvious and necessary to me, but I can't remeber talks about
this..

See
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/97440

Something similar can be implemented trivially using the same principle,
with Object#method instead of Module#instance_method and using the
singleton class.

--
Running Debian GNU/Linux Sid (unstable)
batsman dot geo at yahoo dot com

...Deep Hack Mode -- that mysterious and frightening state of
consciousness where Mortal Users fear to tread.
-- Matt Welsh