Contents

module Unparser
  class Emitter

    # Base class for and and or op-assign
    class BinaryAssign < self

      children :target, :expression

      MAP = IceNine.deep_freeze(
        :and_asgn => '&&=',
        :or_asgn  => '||='
      )

      handle *MAP.keys

    private

      # Perform dispatch
      #
      # @return [undefined]
      #
      # @api private
      #
      def dispatch
        visit(target)
        write(WS, MAP.fetch(node.type), WS)
        visit(expression)
      end

    end # BinaryAssign

    # Emitter for op assign
    class OpAssign < self

      handle :op_asgn

    private

      # Perform dispatch
      #
      # @return [undefined]
      #
      # @api private
      #
      def dispatch
        visit(first_child)
        emit_operator
        visit(children[2])
      end

      # Emit operator
      #
      # @return [undefined]
      #
      # @api private
      #
      def emit_operator
        write(WS, children[1].to_s, O_ASN, WS)
      end

    end # OpAssign
  end # Emitte
end # Unparser

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
unparser-0.0.2	lib/unparser/emitter/op_assign.rb
unparser-0.0.1	lib/unparser/emitter/op_assign.rb