Sha256: 015f306bbdc470cf42bca11f13645b66ebff1a9e2e596b7855a95b3495e7e11f
Contents?: true
Size: 966 Bytes
Versions: 20
Compression:
Stored size: 966 Bytes
Contents
class Object
# Like super but skips to a specific ancestor module or class.
#
# class A
# def x ; 1 ; end
# end
#
# class B < A
# def x ; 2 ; end
# end
#
# class C < B
# def x ; superior(A) ; end
# end
#
# C.new.x #=> 1
#
def superior(klass=self.class.superclass, *args, &blk)
unless self.class.ancestors.include?(klass)
raise ArgumentError
end
called = /\`([^\']+)\'/.match(caller(1).first)[1].to_sym
klass.instance_method(called).bind(self).call(*args,&blk)
end
end
# _____ _
# |_ _|__ ___| |_
# | |/ _ \/ __| __|
# | | __/\__ \ |_
# |_|\___||___/\__|
#
=begin test
require 'test/unit'
class TCKernel < Test::Unit::TestCase
class X ; def x ; 1 ; end ; end
class Y < X ; def x ; 2 ; end ; end
class Z < Y ; def x ; p 'here'; superior(X) ; end ; end
def test_superior
z = Z.new
assert_equal( 1, z.x )
end
end
=end
Version data entries
20 entries across 20 versions & 1 rubygems