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Versions: 19
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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for space between the name of a receiver and a left
# brackets.
#
# @example
#
# # bad
# collection [index_or_key]
#
# # good
# collection[index_or_key]
#
class SpaceBeforeBrackets < Base
include RangeHelp
extend AutoCorrector
MSG = 'Remove the space before the opening brackets.'
RESTRICT_ON_SEND = %i[[] []=].freeze
def on_send(node)
return unless (first_argument = node.first_argument)
begin_pos = first_argument.source_range.begin_pos
return unless (range = offense_range(node, begin_pos))
register_offense(range)
end
private
def offense_range(node, begin_pos)
if reference_variable_with_brackets?(node)
receiver_end_pos = node.receiver.source_range.end_pos
selector_begin_pos = node.loc.selector.begin_pos
return if receiver_end_pos >= selector_begin_pos
range_between(receiver_end_pos, selector_begin_pos)
elsif node.method?(:[]=)
offense_range_for_assignment(node, begin_pos)
end
end
def offense_range_for_assignment(node, begin_pos)
end_pos = node.receiver.source_range.end_pos
return if begin_pos - end_pos == 1 ||
(range = range_between(end_pos, begin_pos - 1)).source.start_with?('[')
range
end
def register_offense(range)
add_offense(range) { |corrector| corrector.remove(range) }
end
def reference_variable_with_brackets?(node)
node.receiver&.variable? && node.method?(:[]) && node.arguments.size == 1
end
end
end
end
end
Version data entries
19 entries across 19 versions & 4 rubygems