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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for parentheses for empty lambda parameters. Parentheses
# for empty lambda parameters do not cause syntax errors, but they are
# redundant.
#
# @example
# # bad
# -> () { do_something }
#
# # good
# -> { do_something }
#
# # good
# -> (arg) { do_something(arg) }
class EmptyLambdaParameter < Cop
include EmptyParameter
include RangeHelp
MSG = 'Omit parentheses for the empty lambda parameters.'
def on_block(node)
send_node = node.send_node
return unless send_node.send_type?
check(node) if node.send_node.lambda_literal?
end
def autocorrect(node)
lambda do |corrector|
send_node = node.parent.send_node
range = range_between(
send_node.loc.expression.end_pos,
node.loc.expression.end_pos
)
corrector.remove(range)
end
end
end
end
end
end
Version data entries
62 entries across 43 versions & 5 rubygems