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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# Checks for uses of the `then` keyword in multi-line if statements.
#
# @example
# # bad
# # This is considered bad practice.
# if cond then
# end
#
# # good
# # If statements can contain `then` on the same line.
# if cond then a
# elsif cond then b
# end
class MultilineIfThen < Cop
include OnNormalIfUnless
include RangeHelp
NON_MODIFIER_THEN = /then\s*(#.*)?$/.freeze
MSG = 'Do not use `then` for multi-line `%<keyword>s`.'
def on_normal_if_unless(node)
return unless non_modifier_then?(node)
add_offense(node, location: :begin,
message: format(MSG, keyword: node.keyword))
end
def autocorrect(node)
lambda do |corrector|
corrector.remove(
range_with_surrounding_space(range: node.loc.begin, side: :left)
)
end
end
private
def non_modifier_then?(node)
node.loc.begin && node.loc.begin.source_line =~ NON_MODIFIER_THEN
end
end
end
end
end
Version data entries
54 entries across 35 versions & 5 rubygems