Sha256: b9a1e59e09a2151b654bd202b7943bd8fa68e7de462db8b3c7c88dd92508d8f5
Contents?: true
Size: 1.03 KB
Versions: 7
Compression:
Stored size: 1.03 KB
Contents
module Kernel
unless method_defined?(:tap) # 1.8.7+
# The tap K-Combinator. This yields self -and- returns self.
#
# Note, Ruby 1.9+ does not support the zero arity #instance_eval
# variation so it has been deprecated.
def tap #:yield:
yield(self)
self
end
#--
# == Old definition
#
#
# def tap #:yield:
# if block_given?
# b.arity == 1 ? yield(self) : instance_eval(&b)
# end
# return self
# end
#
# == Future definition?
#
# This is a consideration for a future #tap using Functor:
#
# require 'facets/functor'
#
# def tap(&b)
# if block_given?
# b.arity == 1 ? yield(self) : instance_eval(&b)
# self
# else
# Functor.new{ |op, *args| self.send(op, *args); self }
# end
# end
#
# It would allow a single call, before returning the original.
# However there are not very many useful things you can do with
# that.
#++
end
end
Version data entries
7 entries across 6 versions & 1 rubygems