Sha256: 7edda3ec97499954e1875023935c02a18613cbe2b3c5f0ed33c48ff9ed556d25
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Size: 917 Bytes
Versions: 14
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Stored size: 917 Bytes
Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks that arrays are sliced with endless ranges instead of
# `ary[start..-1]` on Ruby 2.6+.
#
# @example
# # bad
# items[1..-1]
#
# # good
# items[1..]
class SlicingWithRange < Cop
extend TargetRubyVersion
minimum_target_ruby_version 2.6
MSG = 'Prefer ary[n..] over ary[n..-1].'
def_node_matcher :range_till_minus_one?, '(irange !nil? (int -1))'
def on_send(node)
return unless node.method?(:[]) && node.arguments.count == 1
return unless range_till_minus_one?(node.arguments.first)
add_offense(node.arguments.first)
end
def autocorrect(node)
lambda do |corrector|
corrector.remove(node.end)
end
end
end
end
end
end
Version data entries
14 entries across 14 versions & 3 rubygems