I’m trying to do something similar to the Camping ‘R’ class generator.
Can anyone explain to me how to get the following to print out from the
program below:
param is p and arg is this is a P
param is q and arg is this is a Q
(basically I want to capture the argument to the maker functions inside
the class they generate).
---- cut here — cut here — cut here —
Using this function causes a blank after “arg is”
def maker1(thearg)
Class.new do
@arg = thearg.dup
def self.argval
@arg
end
def doit(param)
puts “param is #{param} and arg is #{self.class.argval}”
end
end
end
Using this function causes the same value to be printed out for all
classes
def maker2(thearg)
Class.new do
@@arg = thearg.dup
def doit(param)
puts “param is #{param} and arg is #{@@arg}”
end
end
end
using this function causes a undefined ‘local variable or method’
def maker3(thearg)
Class.new do
def doit(param)
puts “param is #{param} and arg is #{thearg}”
end
end
end
change maker1 to maker2 or maker3
class P < maker1 ‘this is a P’
def something
doit(‘p’)
end
end
change maker1 to maker2 or maker3
class Q < maker1 ‘this is a Q’
def something
doit(‘q’)
end
end
P.new.something
Q.new.something
