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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Lint
# This cop checks for `:true` and `:false` symbols.
# In most cases it would be a typo.
#
# @example
#
# # bad
# :true
#
# # good
# true
#
# @example
#
# # bad
# :false
#
# # good
# false
class BooleanSymbol < Cop
MSG = 'Symbol with a boolean name - ' \
'you probably meant to use `%<boolean>s`.'.freeze
def_node_matcher :boolean_symbol?, '(sym {:true :false})'
def on_sym(node)
return unless boolean_symbol?(node)
add_offense(node, message: format(MSG, boolean: node.value))
end
end
end
end
end
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