Class: Remap::Mapper::Xor

Inherits:
Binary show all
Defined in:
lib/remap/mapper/xor.rb

Constant Summary

Constants included from State

State::Schema

Instance Method Summary collapse

Methods inherited from Binary

#exception

Methods included from Operation

#call

Methods included from State

#state

Methods included from Operations

#&, #^, #|

Instance Method Details

#call!(state, &error) ⇒ Object 



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# File 'lib/remap/mapper/xor.rb', line 8

def call!(state, &error)
  unless error
    return call!(state, &exception)
  end

  state1 = left.call!(state) do |failure1|
    return right.call!(state) do |failure2|
      return error[failure1.merge(failure2)]
    end
  end

  state2 = right.call!(state) do
    return state1
  end

  error[state1.merged(state2).failure("Both left and right passed in xor")]
end