67 lines
1.3 KiB
Ruby
67 lines
1.3 KiB
Ruby
module Mutant
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class Mutator
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class Node
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# Mutator for required arguments
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class Argument < self
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handle(:arg)
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UNDERSCORE = '_'.freeze
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children :name
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private
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# Perform dispatch
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#
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# @return [undefined]
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def dispatch
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emit_name_mutation
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end
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# Emit name mutations
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#
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# @return [undefined]
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def emit_name_mutation
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return if skip?
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emit_name(:"#{UNDERSCORE}#{name}")
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end
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# Test if argument mutation is skipped
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#
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# @return [Boolean]
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def skip?
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name.to_s.start_with?(UNDERSCORE)
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end
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# Mutator for optional arguments
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class Optional < self
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handle(:optarg)
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children :name, :default
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private
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# Perform dispatch
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#
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# @return [undefined]
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def dispatch
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emit_name_mutation
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emit_required_mutation
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emit_default_mutations
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end
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# Emit required mutation
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#
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# @return [undefined]
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def emit_required_mutation
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emit(s(:arg, name))
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end
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end # Optional
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end # Argument
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end # Node
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end # Mutator
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end # Mutant
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