From: Stefan Mueller <flcl@...>
Date: 2002-04-30T01:21:57+09:00
Subject: alias_method problem

Hello
	I hope somebody could tell me, what's wrong with these
	examples. I just can't find the solution.
	

	The following does not work:
---------->
module Mod

	# undefined method `foo' for module `Mod' (NameError)
	alias_method :origFoo, :foo			

	def foo(code=0)
		puts "foo code #{code}"
		origFoo(code)
	end
end

class Foo
	def foo(code=0)
		puts code
	end
end

class Foo
	include Mod
end

f = Foo.new
f.foo(1) 	# =>  "foo code 1", I wish
<----


	The following (pickaxe:348) does work,
	but not the way I would like it to, just like the pickaxe original.
-------->
module Mod
	alias_method :origExit, :exit

	def exit(code=0)
		puts "exit code #{code}"
		origExit(code)
	end
end

class Foo
	def exit(code=0)
		puts code
	end
end

class Foo
	include Mod
end


f = Foo.new
f.exit(1)		# => 1, but I want "exit code 1"
<---------	


	I don't understand, why "exit" works, and "foo" not.
	Doing the following does not show "exit"

irb>	module Mod
irb>		puts methods
irb>	end