Class: Monadt::PresentM

Inherits:
Object
  • Object
show all
Defined in:
lib/monadt/maybe.rb

Overview

like Maybe but nil / not-nill

Class Method Summary collapse

Class Method Details

.bind(m, &blk) ⇒ Object 



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# File 'lib/monadt/maybe.rb', line 37

def bind(m, &blk)
  if m.nil?
    nil
  else
    blk.call(m)
  end
end

.return(a) ⇒ Object 



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# File 'lib/monadt/maybe.rb', line 45

def return(a)
  a
end