a3fc233d95
* Classifiers are matcher subclass and delegate to lazy builded matcher interfaces * Solves chicken egg problem between target library load and classifier matcher instantiation
99 lines
2 KiB
Ruby
99 lines
2 KiB
Ruby
module Mutant
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class CLI
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class Classifier
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# Explicit method classifier
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class Method < self
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TABLE = {
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'.' => Matcher::Methods::Singleton,
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'#' => Matcher::Methods::Instance
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}.freeze
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REGEXP = %r(\A(#{SCOPE_PATTERN})([.#])(#{METHOD_NAME_PATTERN}\z)).freeze
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# Positions of captured regexp groups
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SCOPE_NAME_POSITION = 1
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SCOPE_SYMBOL_POSITION = 2
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METHOD_NAME_POSITION = 3
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# Return method matcher
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#
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# @return [Matcher::Method]
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#
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# @api private
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#
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def matcher
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scope_matcher.matcher.new(scope, method)
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end
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memoize :matcher
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private
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# Return method
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#
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# @return [Method, UnboundMethod]
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#
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# @api private
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#
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def method
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scope_matcher.methods.detect do |method|
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method.name == method_name
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end || raise("Cannot find #{method_name} for #{scope}")
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end
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memoize :method, :freezer => :noop
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# Return scope name
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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 scope_name
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match[SCOPE_NAME_POSITION]
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end
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# Return scope
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#
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# @return [Class, Method]
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#
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# @api private
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#
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def scope
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Classifier.constant_lookup(scope_name)
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end
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# Return method name
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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 method_name
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match[METHOD_NAME_POSITION].to_sym
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end
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# Return scope symbol
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#
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# @return [Symbol]
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#
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# @api private
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#
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def scope_symbol
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match[SCOPE_SYMBOL_POSITION]
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end
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# Return matcher class
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#
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# @return [Class:Mutant::Matcher]
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#
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# @api private
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#
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def scope_matcher
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TABLE.fetch(scope_symbol).new(scope)
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end
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memoize :scope_matcher
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end
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end
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end
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end
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