74 lines
1.4 KiB
Ruby
74 lines
1.4 KiB
Ruby
# frozen_string_literal: true
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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, :kwarg)
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UNDERSCORE = '_'
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children :name
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private
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# Emit mutations
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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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TYPE_MAP = IceNine.deep_freeze(
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optarg: :arg,
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kwoptarg: :kwarg
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)
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handle(:optarg, :kwoptarg)
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children :name, :default
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private
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# Emit mutations
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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(TYPE_MAP.fetch(node.type), 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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