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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Performance
# Identifies places where `sort { |a, b| a <=> b }` can be replaced with `sort`.
#
# @example
# # bad
# array.sort { |a, b| a <=> b }
#
# # good
# array.sort
#
class RedundantSortBlock < Base
include SortBlock
extend AutoCorrector
MSG = 'Use `sort` without block.'
def on_block(node)
return unless (send, var_a, var_b, body = sort_with_block?(node))
replaceable_body?(body, var_a, var_b) do
register_offense(send, node)
end
end
def on_numblock(node)
return unless (send, arg_count, body = sort_with_numblock?(node))
return unless arg_count == 2
replaceable_body?(body, :_1, :_2) do
register_offense(send, node)
end
end
private
def register_offense(send, node)
range = sort_range(send, node)
add_offense(range) do |corrector|
corrector.replace(range, 'sort')
end
end
end
end
end
end
Version data entries
96 entries across 96 versions & 6 rubygems