Sha256: 007cc55babfb6e71feb3d3ac6a831f36e6a0990514b04a4597f41708f20342cf
Contents?: true
Size: 514 Bytes
Versions: 10
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Stored size: 514 Bytes
Contents
require 'facets/functor'
module Kernel
# Same as using NOT operator '!'.
#
# true.nil?.not? == !true.nil?
#
def not?
!self
end
# Inversion functor.
#
# true.not.nil? #=> true
#
def not
Functor.new(&method(:not_send).to_proc)
end
## TODO: When we no longer need to support 1.8.6 we can use:
##
## def not
## Functor.new do |op, *a, &b|
## !__send__(op, *a, &b)
## end
## end
private
#
def not_send(op, *a, &b)
!__send__(op, *a)
end
end
Version data entries
10 entries across 9 versions & 2 rubygems