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Versions: 11
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Stored size: 1.31 KB
Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for trailing comma in array and hash literals.
#
# @example
# # always bad
# a = [1, 2,]
#
# # good if EnforcedStyleForMultiline is consistent_comma
# a = [
# 1, 2,
# 3,
# ]
#
# # good if EnforcedStyleForMultiline is comma or consistent_comma
# a = [
# 1,
# 2,
# ]
#
# # good if EnforcedStyleForMultiline is no_comma
# a = [
# 1,
# 2
# ]
class TrailingCommaInLiteral < Cop
include ArraySyntax
include TrailingComma
def on_array(node)
check_literal(node, 'item of %s array') if square_brackets?(node)
end
def on_hash(node)
check_literal(node, 'item of %s hash')
end
private
def check_literal(node, kind)
return if node.children.empty?
# A braceless hash is the last parameter of a method call and will be
# checked as such.
return unless brackets?(node)
check(node, node.children, kind,
node.children.last.source_range.end_pos,
node.loc.end.begin_pos)
end
end
end
end
end
Version data entries
11 entries across 11 versions & 2 rubygems