78 lines
1.4 KiB
Ruby
78 lines
1.4 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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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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register(
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/\A(?<scope_name>#{SCOPE_PATTERN})(?<scope_symbol>[.#])\z/
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)
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# Return method matcher
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#
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# @param [Env] env
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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(env)
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MATCHERS.fetch(scope_symbol).new(env, scope)
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end
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# Return length of match
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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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#
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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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# 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[__method__]
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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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Mutant.constant_lookup(scope_name)
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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[__method__]
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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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