139 lines
2.3 KiB
Ruby
139 lines
2.3 KiB
Ruby
# encoding: utf-8
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module Mutant
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# Subject of a mutation
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class Subject
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include AbstractType, Adamantium::Flat, Enumerable
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include Concord::Public.new(:context, :node)
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# Return mutations
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#
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# @return [Enumerable<Mutation>]
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#
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# @api private
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#
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def mutations
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mutations = []
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generate_mutations(mutations)
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mutations
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end
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memoize :mutations
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# Return source path
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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_path
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context.source_path
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end
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# Prepare the subject for the insertion of mutation
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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 prepare
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self
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end
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# Return source line
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#
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# @return [Fixnum]
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#
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# @api private
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#
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def source_line
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node.location.expression.line
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end
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# Return 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 identification
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"#{match_expression}:#{source_path}:#{source_line}"
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end
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memoize :identification
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# Return source representation of ast
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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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Unparser.unparse(node)
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end
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memoize :source
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# Return root AST for node
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#
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# @param [Parser::AST::Node] node
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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 root(node)
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context.root(node)
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end
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# Return root AST node for original AST ndoe
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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 original_root
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root(node)
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end
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memoize :original_root
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# Return match expression
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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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abstract_method :match_expression
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# Return match prefixes
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#
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# @return [Enumerable<String>]
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#
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# @api private
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#
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def match_prefixes
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[match_expression].concat(context.match_prefixes)
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end
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memoize :match_prefixes
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private
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# Return neutral mutation
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#
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# @return [Mutation::Neutral]
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#
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# @api private
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#
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def noop_mutation
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Mutation::Neutral::Noop.new(self, node)
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end
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# Generate mutations
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#
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# @param [#<<] emitter
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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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abstract_method :generate_mutations
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end # Subject
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end # Mutant
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