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Contents
# frozen_string_literal: true
module RuboCop
module Cop
# Some common code shared between FavorUnlessOverNegatedIf and
# FavorUntilOverNegatedWhile.
module NegativeConditional
extend NodePattern::Macros
include IfNode
def_node_matcher :single_negative?, '(send !(send _ :!) :!)'
def_node_matcher :empty_condition?, '(begin)'
def check_negative_conditional(node)
condition, _body, _rest = *node
return if empty_condition?(condition)
# Look at last expression of contents if there are parentheses
# around condition.
condition = condition.children.last while condition.begin_type?
return unless single_negative?(condition) && !if_else?(node)
add_offense(node, :expression)
end
end
end
end
Version data entries
9 entries across 9 versions & 2 rubygems