class Rufo::Formatter

def visit_hash_key_value(node)
  # key => value
  #
  # [:assoc_new, key, value]
  _, key, value = node
  # If a symbol comes it means it's something like
  # `:foo => 1` or `:"foo" => 1` and a `=>`
  # always follows
  symbol = current_token_kind == :on_symbeg
  arrow = symbol || !(key[0] == :@label || key[0] == :dyna_symbol)
  visit key
  # Don't output `=>` for keys that are `label: value`
  # or `"label": value`
  if arrow
    consume_space
    consume_op "=>"
  end
  if value.nil?
    # The value for the key is omitted.
    skip_space
  else
    consume_space
    visit value
  end
end