Ferenc Engard
9/12/2003 8:33:00 PM
Hello,
This is something you want:
------------------------------
class Foo
def aMethod(param)
# Based on param''s type, call the appropriate function
if param.kind_of?(String)
return aMethod_string(param)
end
if param.kind_of?(Integer)
return aMethod_integer(param)
end
end
def aMethod_string(param)
# ...
end
def aMethod_integer(param)
# ...
end
private :aMethod_string, :aMethod_integer
end
------------------------------
OTOH, the ducktyping is just you have said (if I correctly understand):
if it can quak, it''s a duck, if it can speak, it''s a human. You can
inspect what an object can do with the respond_to?() method:
------------------------------
class Foo
def aMethod(param)
# Based on param''s capabilities,
# call the appropriate function
if param.respond_to?(:quak)
return aMethod_quaks(param)
end
if param.respond_to?(:speak)
return aMethod_speaks(param)
end
end
# It can quak, who cares what this param really is?
def aMethod_quaks(param)
# ...
end
def aMethod_speaks(param)
# ...
end
private :aMethod_quaks, :aMethod_speaks
end
------------------------------
Both are untested code, sorry if something do not work.
Regards:
Circum