class RuboCop::Cop::Style::TrailingCommaInLiteral
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 ]
Public Instance Methods
on_array(node)
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# File lib/rubocop/cop/style/trailing_comma_in_literal.rb, line 33 def on_array(node) check_literal(node, 'item of %s array') if node.square_brackets? end
on_hash(node)
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# File lib/rubocop/cop/style/trailing_comma_in_literal.rb, line 37 def on_hash(node) check_literal(node, 'item of %s hash') end
Private Instance Methods
check_literal(node, kind)
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# File lib/rubocop/cop/style/trailing_comma_in_literal.rb, line 43 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