126 lines
2 KiB
Ruby
126 lines
2 KiB
Ruby
module Mutant
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# Represent a mutated node with its subject
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class Mutation
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include AbstractType, Adamantium::Flat, Equalizer.new(:sha1)
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# Initialize mutation object
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#
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# @param [Subject] subject
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# @param [Rubinius::Node::AST] node
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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 initialize(subject, node)
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@subject, @node = subject, node
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end
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# Return mutation subject
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#
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# @return [Subject]
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#
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# @api private
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#
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attr_reader :subject
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# Return mutated node
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#
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# @return [Rubinius::AST::Node]
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#
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# @api private
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#
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attr_reader :node
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# Return mutated root node
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#
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# @return [Rubinius::AST::Node]
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#
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# @api private
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#
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def root
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subject.root(node)
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end
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memoize :root
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# Test if killer is successful
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#
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# @param [Killer] killer
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#
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# @return [true]
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# if killer is successful
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#
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# @return [false]
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# otherwise
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#
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# @api private
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#
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abstract_method :success?
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# Insert mutated node
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#
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# @return [self]
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#
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# @api private
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#
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def insert
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Loader::Eval.run(root, subject)
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self
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end
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# Return identification
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#
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# @return [String]
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#
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# @api private
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#
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def identification
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"#{subject.identification}:#{code}"
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end
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memoize :identification
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# Return mutation code
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#
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# @return [String]
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#
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# @api private
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#
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def code
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sha1[0..4]
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end
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memoize :code
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# Return sha1 sum of source and subject identification
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#
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# @return [String]
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#
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# @api private
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#
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def sha1
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Digest::SHA1.hexdigest(subject.identification + source)
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end
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memoize :sha1
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# Return source
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#
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# @return [String]
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#
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# @api private
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#
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def source
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ToSource.to_source(node)
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end
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memoize :source
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# Return original source
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#
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# @return [String]
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#
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# @api private
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#
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def original_source
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subject.source
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end
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end
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end
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