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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for trailing comma in array literals.
# The configuration options are:
#
# * `consistent_comma`: Requires a comma after the
# last item of all non-empty, multiline array literals.
# * `comma`: Requires a comma after last item in an array,
# but only when each item is on its own line.
# * `no_comma`: Does not requires a comma after the
# last item in an array
#
# @example EnforcedStyleForMultiline: consistent_comma
# # bad
# a = [1, 2,]
#
# # good
# a = [1, 2]
#
# # good
# a = [
# 1, 2,
# 3,
# ]
#
# # good
# a = [
# 1, 2, 3,
# ]
#
# # good
# a = [
# 1,
# 2,
# ]
#
# @example EnforcedStyleForMultiline: comma
# # bad
# a = [1, 2,]
#
# # good
# a = [1, 2]
#
# # bad
# a = [
# 1, 2,
# 3,
# ]
#
# # good
# a = [
# 1, 2,
# 3
# ]
#
# # bad
# a = [
# 1, 2, 3,
# ]
#
# # good
# a = [
# 1, 2, 3
# ]
#
# # good
# a = [
# 1,
# 2,
# ]
#
# @example EnforcedStyleForMultiline: no_comma (default)
# # bad
# a = [1, 2,]
#
# # good
# a = [
# 1,
# 2
# ]
class TrailingCommaInArrayLiteral < Cop
include TrailingComma
def on_array(node)
return unless node.square_brackets?
check_literal(node, 'item of %<article>s array')
end
def autocorrect(range)
PunctuationCorrector.swap_comma(range)
end
end
end
end
end
Version data entries
13 entries across 13 versions & 3 rubygems