8233c5871f
* New primary interface #call makes specs and implementations much easier * We had #each mostly for historical reasons that are not relevant anymore * Mutation covers the Mutant::Matcher namespace
64 lines
1.3 KiB
Ruby
64 lines
1.3 KiB
Ruby
module Mutant
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class Expression
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# Abstract base class for methods expression
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class Methods < self
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include Anima.new(:scope_name, :scope_symbol)
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private(*anima.attribute_names)
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MATCHERS = IceNine.deep_freeze(
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'.' => Matcher::Methods::Singleton,
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'#' => Matcher::Methods::Instance
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)
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private_constant(*constants(false))
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REGEXP = /\A#{SCOPE_NAME_PATTERN}#{SCOPE_SYMBOL_PATTERN}\z/.freeze
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# Syntax of 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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def syntax
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[scope_name, scope_symbol].join
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end
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memoize :syntax
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# Matcher on expression
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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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def matcher
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MATCHERS.fetch(scope_symbol).new(scope)
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end
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# Length of match with other expression
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#
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# @param [Expression] expression
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#
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# @return [Fixnum]
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#
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# @api private
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def match_length(expression)
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if expression.syntax.start_with?(syntax)
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syntax.length
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else
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0
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end
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end
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private
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# Scope object
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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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def scope
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Object.const_get(scope_name)
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end
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end # Method
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end # Expression
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end # Mutant
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