/
trailing_comma_in_arguments.rb
106 lines (102 loc) · 2.25 KB
/
trailing_comma_in_arguments.rb
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# frozen_string_literal: true
module RuboCop
module Cop
module Style
# Checks for trailing comma in argument lists.
# The supported styles are:
#
# * `consistent_comma`: Requires a comma after the last argument,
# for all parenthesized method calls with arguments.
# * `comma`: Requires a comma after the last argument, but only for
# parenthesized method calls where each argument is on its own line.
# * `no_comma`: Requires that there is no comma after the last
# argument.
#
# @example EnforcedStyleForMultiline: consistent_comma
# # bad
# method(1, 2,)
#
# # good
# method(1, 2)
#
# # good
# method(
# 1, 2,
# 3,
# )
#
# # good
# method(
# 1, 2, 3,
# )
#
# # good
# method(
# 1,
# 2,
# )
#
# @example EnforcedStyleForMultiline: comma
# # bad
# method(1, 2,)
#
# # good
# method(1, 2)
#
# # bad
# method(
# 1, 2,
# 3,
# )
#
# # good
# method(
# 1, 2,
# 3
# )
#
# # bad
# method(
# 1, 2, 3,
# )
#
# # good
# method(
# 1, 2, 3
# )
#
# # good
# method(
# 1,
# 2,
# )
#
# @example EnforcedStyleForMultiline: no_comma (default)
# # bad
# method(1, 2,)
#
# # good
# method(1, 2)
#
# # good
# method(
# 1,
# 2
# )
class TrailingCommaInArguments < Base
include TrailingComma
extend AutoCorrector
def self.autocorrect_incompatible_with
[Layout::HeredocArgumentClosingParenthesis]
end
def on_send(node)
return unless node.arguments? && node.parenthesized?
check(node, node.arguments, 'parameter of %<article>s method call',
node.last_argument.source_range.end_pos,
node.source_range.end_pos)
end
alias on_csend on_send
end
end
end
end