44 lines
1,011 B
Ruby
44 lines
1,011 B
Ruby
module Mutant
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class Mutator
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class Node
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class Literal < self
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# Mutator for regexp literals
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class Regex < self
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handle(:regexp)
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# No input can ever be matched with this
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NULL_REGEXP_SOURCE = 'a\A'.freeze
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private
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# Return options
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#
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# @return [Parser::AST::Node]
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#
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# @api private
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#
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def options
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children.last
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end
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# Emit mutants
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#
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# @return [undefined]
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#
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# @api private
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#
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def dispatch
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emit_singletons unless parent_node && n_match_current_line?(parent_node)
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children.each_with_index do |child, index|
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mutate_child(index) unless n_str?(child)
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end
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emit_type(options)
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emit_type(s(:str, NULL_REGEXP_SOURCE), options)
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end
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end # Regex
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end # Literal
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end # Node
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end # Mutator
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end # Mutant
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