76 lines
1.5 KiB
Ruby
76 lines
1.5 KiB
Ruby
module Mutant
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class Expression
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# Explicit method expression
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class Method < 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>[.#])(?<method_name>#{METHOD_NAME_PATTERN})\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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methods_matcher = MATCHERS.fetch(scope_symbol).new(env, scope)
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method = methods_matcher.methods.detect do |meth|
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meth.name.equal?(method_name)
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end or fail NameError, "Cannot find method #{method_name}"
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methods_matcher.matcher.build(env, scope, method)
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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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Object.const_get(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__].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[__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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