Sha256: 04f366a56973ad8c4938f0b4131224a5b7ff8d4627c70f83dcae93a6d9a37087
Contents?: true
Size: 739 Bytes
Versions: 13
Compression:
Stored size: 739 Bytes
Contents
class Module
private
# Creates a new method for a pre-existing method.
#
# If _aka_ is given, then the method being redefined will
# first be aliased to this name.
#
# class Greeter
# def hello ; "Hello" ; end
# end
#
# Greeter.new.hello #=> "Hello"
#
# class Greeter
# redefine_method( :hello, :hi ) do
# hi + ", friend!"
# end
# end
#
# Greeter.new.hello #=> "Hello, friend!"
#
# CREDIT: Trans
def redefine_method(sym, aka=nil, &blk)
raise ArgumentError, "method does not exist" unless method_defined?( sym )
alias_method( aka, sym ) if aka
undef_method( sym )
define_method( sym, &blk )
end
alias_method :redef, :redefine_method
end
Version data entries
13 entries across 13 versions & 1 rubygems