class RuboCop::Cop::Layout::SpaceInsideHashLiteralBraces

def on_hash(node)
  tokens = processed_source.tokens
  hash_literal_with_braces(node) do |begin_index, end_index|
    check(tokens[begin_index], tokens[begin_index + 1])
    return if begin_index == end_index - 1
    check(tokens[end_index - 1], tokens[end_index])
  end
end