a19f3b1691
* I do not use 1.9.3 * Also keeping them in each file increases mental overhead (true it *can* be autoamted) * None of the files encodes NON ASCII chars. * I do not expect it makes any difference, since nobody programmatically will consume strings generated by mutant under the assumption they are UTF-8 encoded. * 1.9.3 Users have to deal with the encoding fuckup under ruby anyways.
114 lines
2.7 KiB
Ruby
114 lines
2.7 KiB
Ruby
module Mutant
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class Subject
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class Method
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# Instance method subjects
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class Instance < self
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NAME_INDEX = 0
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SYMBOL = '#'.freeze
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# Test if method is public
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#
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# @return [true]
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# if method is public
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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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def public?
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scope.public_method_defined?(name)
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end
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memoize :public?
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# Prepare subject for mutation insertion
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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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expected_warnings =
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if RUBY_ENGINE.eql?('ruby') && name.equal?(:initialize)
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["#{__FILE__}:#{__LINE__ + 5}: warning: undefining `initialize' may cause serious problems\n"]
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else
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[]
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end
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WarningExpectation.new(expected_warnings).execute do
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scope.send(:undef_method, name)
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end
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self
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end
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# Mutator for memoized instance methods
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class Memoized < self
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include NodeHelpers
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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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Unparser.unparse(memoizer_node(node))
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end
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memoize :source
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# Prepare subject for mutation insertion
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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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scope.send(:memoized_methods).instance_variable_get(:@memory).delete(name)
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super
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self
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end
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private
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# Return 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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def generate_mutations(emitter)
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emitter << noop_mutation
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Mutator.each(node) do |mutant|
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emitter << Mutation::Evil.new(self, memoizer_node(mutant))
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end
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end
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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, memoizer_node(node))
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end
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# Return memoizer node for mutant
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#
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# @param [Parser::AST::Node] mutant
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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 memoizer_node(mutant)
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s(:begin, mutant, s(:send, nil, :memoize, s(:args, s(:sym, name))))
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end
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end # Memoized
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end # Instance
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end # Method
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end # Subject
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end # Mutant
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