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Contents
# frozen_string_literal: true
module Mutant
class Mutator
class Node
# Mutator for when nodes
class When < self
handle(:when)
private
# Emit mutations
#
# @return [undefined]
def dispatch
if body
mutate_body
else
emit_child_update(body_index, N_RAISE)
end
mutate_conditions
end
# Emit condition mutations
#
# @return [undefined]
def mutate_conditions
conditions = children.length - 1
children[0..-2].each_index do |index|
delete_child(index) if conditions > 1
mutate_child(index)
end
end
# Emit body mutations
#
# @return [undefined]
def mutate_body
mutate_child(body_index)
end
# Body node
#
# @return [Parser::AST::Node]
# if body is present
#
# @return [nil]
# otherwise
def body
children.fetch(body_index)
end
# Index of body node
#
# @return [Integer]
def body_index
children.length - 1
end
end # When
end # Node
end # Mutator
end # Mutant
Version data entries
17 entries across 17 versions & 1 rubygems