43 lines
1 KiB
Ruby
43 lines
1 KiB
Ruby
# Copyright (C) 2012-2021 Zammad Foundation, http://zammad-foundation.org/
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module RuboCop
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module Cop
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module Zammad
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# This cop is used to identify usages of `.to_sym` on Strings and
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# changes them to use the `:` prefix instead.
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#
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# @example
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# # bad
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# "a-Symbol".to_sym
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# 'a-Symbol'.to_sym
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# "a-#{'Symbol'}".to_sym
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#
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# # good
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# :"a-Symbol"
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# :'a-Symbol'
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# :"a-#{'Symbol'}"
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class NoToSymOnString < Base
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extend AutoCorrector
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def_node_matcher :to_sym?, <<-PATTERN
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{
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$(send (str ...) :to_sym ...)
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$(send (dstr ...) :to_sym ...)
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}
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PATTERN
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MSG = "Don't use `.to_sym` on String. Prefer `:` prefix instead.".freeze
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def on_send(node)
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result = *to_sym?(node)
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return if result.empty?
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add_offense(node, message: MSG) do |corrector|
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corrector.replace(node, ":#{result.first.source}")
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end
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end
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end
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end
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end
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end
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