d0d1bb2464
This avoids situartions where the source contains (begin, other) nodes that get mutated to (other) where there is no difference in the source. Closes #198
32 lines
577 B
Ruby
32 lines
577 B
Ruby
# encoding: utf-8
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module Mutant
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# An AST cache
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class Cache
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# This is explicitly empty! Ask me if you are interested in reasons :D
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include Equalizer.new
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# Initialize object
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#
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# @return [undefined]
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#
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# @api private
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#
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def initialize
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@cache = {}
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end
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# Return node for file
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#
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# @return [AST::Node]
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#
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# @api private
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#
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def parse(path)
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@cache.fetch(path) do
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@cache[path] = Unparser::Preprocessor.run(Parser::CurrentRuby.parse(File.read(path)))
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end
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end
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end # Cache
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end # Mutant
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