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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Lint
# This cop checks for ambiguous regexp literals in the first argument of
# a method invocation without parentheses.
#
# @example
#
# # bad
#
# # This is interpreted as a method invocation with a regexp literal,
# # but it could possibly be `/` method invocations.
# # (i.e. `do_something./(pattern)./(i)`)
# do_something /pattern/i
#
# @example
#
# # good
#
# # With parentheses, there's no ambiguity.
# do_something(/pattern/i)
class AmbiguousRegexpLiteral < Cop
include ParserDiagnostic
MSG = 'Ambiguous regexp literal. Parenthesize the method arguments ' \
"if it's surely a regexp literal, or add a whitespace to the " \
'right of the `/` if it should be a division.'.freeze
private
def relevant_diagnostic?(diagnostic)
diagnostic.reason == :ambiguous_literal
end
def alternative_message(_diagnostic)
MSG
end
end
end
end
end
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