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Size: 1.23 KB

Versions: 9

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Stored size: 1.23 KB

Contents

# encoding: utf-8

module Mutant
  class Mutator
    class Node

      # Mutator for case nodes
      class Case < self

        handle(:case)

        children :condition

      private

        # Emit mutations
        #
        # @return [undefined]
        #
        # @api private
        #
        def dispatch
          emit_condition_mutations if condition
          emit_when_mutations
          emit_else_mutations
          emit_nil
        end

        # Emit when mutations
        #
        # @return [undefined]
        #
        # @api private
        #
        def emit_when_mutations
          indices = children.each_index.drop(1).take(children.length - 2)
          one = indices.one?
          indices.each do |index|
            mutate_child(index)
            delete_child(index) unless one
          end
        end

        # Emit else mutations
        #
        # @return [undefined]
        #
        # @api private
        #
        def emit_else_mutations
          else_branch = children.last
          else_index = children.length - 1
          if else_branch
            mutate_child(else_index)
            emit_child_update(else_index, nil)
          end
        end

      end # Case
    end # Node
  end # Mutator
end # Mutant

Version data entries

9 entries across 9 versions & 1 rubygems

Version Path
mutant-0.5.18 lib/mutant/mutator/node/case.rb
mutant-0.5.17 lib/mutant/mutator/node/case.rb
mutant-0.5.16 lib/mutant/mutator/node/case.rb
mutant-0.5.15 lib/mutant/mutator/node/case.rb
mutant-0.5.14 lib/mutant/mutator/node/case.rb
mutant-0.5.13 lib/mutant/mutator/node/case.rb
mutant-0.5.12 lib/mutant/mutator/node/case.rb
mutant-0.5.11 lib/mutant/mutator/node/case.rb
mutant-0.5.10 lib/mutant/mutator/node/case.rb