0be9fa75d6
Several steps were made to achieve mutant working with Ruby 2.4 without
warnings and spec failures:
* Fix Fixnum deprecation warning
* Update RuboCop to 0.47 and fix offenses
* Relax version requirements on parser gem
* Update diff-lcs to 1.3
* Update rake 11.x -> 12.x
* Update reek 4.5 -> 4.6 (to work with parser 2.4)
* Update json 2.0 -> 2.1
* Update parallel 1.10 -> 1.11
* Update simplecov 0.12 -> 0.14
* Run regexp_parser integration against v0.4.3 (as we requiring this
exact version)
* Update warnings.yml with new whitelist
* Run CircleCI tests on Ruby 2.3 and 2.4 (Bundler.with_clean_env
was causing troubles on new CircleCI 2.0 setup, so it was removed)
57 lines
1.2 KiB
Ruby
57 lines
1.2 KiB
Ruby
module Mutant
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# Abstract base class for match expression
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class Expression
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include AbstractType, Adamantium::Flat
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fragment = /[A-Za-z][A-Za-z\d_]*/.freeze
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SCOPE_NAME_PATTERN = /(?<scope_name>#{fragment}(?:#{SCOPE_OPERATOR}#{fragment})*)/.freeze
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SCOPE_SYMBOL_PATTERN = '(?<scope_symbol>[.#])'.freeze
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private_constant(*constants(false))
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# Syntax of expression
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#
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# @return [String]
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abstract_method :syntax
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# Match length with other expression
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#
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# @param [Expression] other
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#
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# @return [Integer]
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def match_length(other)
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if eql?(other)
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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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# Test if expression is prefix
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#
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# @param [Expression] other
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#
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# @return [Boolean]
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def prefix?(other)
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!match_length(other).zero?
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end
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# Try to parse input into expression of receiver class
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#
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# @param [String] input
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#
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# @return [Expression]
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# when successful
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#
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# @return [nil]
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# otherwise
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def self.try_parse(input)
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match = self::REGEXP.match(input)
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return unless match
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names = anima.attribute_names
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new(Hash[names.zip(names.map(&match.method(:[])))])
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end
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end # Expression
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end # Mutant
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