Forcing Kernel::method_name to be called in Ruby
- by Peter
I want to add a foo method to Ruby's Kernel module, so I can write foo(obj) anywhere and have it do something to obj. Sometimes I want a class to override foo, so I do this:
module Kernel
private # important; this is what Ruby does for commands like 'puts', etc.
def foo x
if x.respond_to? :foo
x.foo # use overwritten method.
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