forked from rubocop/rubocop
/
first_method_argument_line_break.rb
54 lines (48 loc) · 1.37 KB
/
first_method_argument_line_break.rb
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# frozen_string_literal: true
module RuboCop
module Cop
module Layout
# This cop checks for a line break before the first argument in a
# multi-line method call.
#
# @example
#
# # bad
# method(foo, bar,
# baz)
#
# # good
# method(
# foo, bar,
# baz)
#
# # ignored
# method foo, bar,
# baz
class FirstMethodArgumentLineBreak < Cop
include FirstElementLineBreak
MSG = 'Add a line break before the first argument of a ' \
'multi-line method argument list.'.freeze
def on_send(node)
args = node.arguments
# If there is a trailing hash arg without explicit braces, like this:
#
# method(1, 'key1' => value1, 'key2' => value2)
#
# ...then each key/value pair is treated as a method 'argument'
# when determining where line breaks should appear.
if (last_arg = args.last)
if last_arg.hash_type? && !last_arg.braces?
args = args.concat(args.pop.children)
end
end
check_method_line_break(node, args)
end
alias on_csend on_send
def autocorrect(node)
EmptyLineCorrector.insert_before(node)
end
end
end
end
end