Sha256: 0abc32477ebe236594f9934038f835bb6a02fd92cd7fb84531a0b446e1e34891
Contents?: true
Size: 1.65 KB
Versions: 6
Compression:
Stored size: 1.65 KB
Contents
class Module
# Converts module methods into instance methods such that the first parameter
# is passed +self+. This promotes DRY programming when wishing to offer both
# inheritable and module callable procedures.
#
# This method is modeled after +module_function+ which essentially has the the
# opposite effect. Due to implementation limitations, this must use the callback
# #singleton_method_added to emulate +module_function+ when no method names
# are given.
#
# module MyModule
# instance_function
#
# def self.jumble( obj, arg )
# obj + arg
# end
# end
#
# class String
# include MyModule
# end
#
# MyModule.jumble( "Try", "Me" ) #=> "TryMe"
#
# "Try".jumble( "Me" ) #=> 'TryMe'
#
# Note: This used to be a module called PromoteSelf and later Instantize,
# before becoming a method.
#
def instance_function(*meths)
if meths.empty?
extend InstanceFunction
else
meths.each do |meth|
class_eval %{
def #{meth}(*args)
#{self.name}.#{meth}(self,*args)
end
}
end
end
end
module InstanceFunction #:nodoc
#
def singleton_method_added(meth)
module_eval %{
def #{meth}(*args)
#{self.name}.#{meth}(self,*args)
end
}
#self.class_eval d
super(meth)
end
end
end #class Module
=begin
module Instantize
def self.append_features(mod)
mod.extend self
end
def singleton_method_added( meth )
d = %{
def #{meth}(*args)
#{self.name}.#{meth}(self,*args)
end
}
self.class_eval d
super(meth)
end
end
=end
Version data entries
6 entries across 6 versions & 1 rubygems