95 lines
1.9 KiB
Ruby
95 lines
1.9 KiB
Ruby
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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# Mutations for this subject
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#
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# @return [Enumerable<Mutation>]
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# @return [undefined]
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def mutations
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[neutral_mutation].concat(
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Mutator.mutate(node).map do |mutant|
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Mutation::Evil.new(self, wrap_node(mutant))
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end
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)
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end
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memoize :mutations
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# Source path
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#
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# @return [Pathname]
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def source_path
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context.source_path
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end
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# Prepare subject for insertion of mutation
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#
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# @return [self]
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def prepare
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self
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end
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# Source line range
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#
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# @return [Range<Fixnum>]
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def source_lines
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expression = node.location.expression
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expression.line..expression.source_buffer.decompose_position(expression.end_pos).first
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end
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memoize :source_lines
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# First source line
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#
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# @return [Fixnum]
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def source_line
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source_lines.begin
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end
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# Identification string
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#
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# @return [String]
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def identification
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"#{expression.syntax}:#{source_path}:#{source_line}"
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end
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memoize :identification
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# Source representation of AST
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#
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# @return [String]
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def source
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Unparser.unparse(wrap_node(node))
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end
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memoize :source
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# Match expression
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#
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# @return [Expression]
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abstract_method :expression
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# Match expressions
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#
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# @return [Enumerable<Expression>]
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abstract_method :match_expressions
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private
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# Neutral mutation
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#
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# @return [Mutation::Neutral]
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def neutral_mutation
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Mutation::Neutral.new(self, wrap_node(node))
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end
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# Wrap node into subject specific container
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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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def wrap_node(node)
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node
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end
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end # Subject
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end # Mutant
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