Method toString

lib/node.js:439–446

(stringifier = stringify)

  }

  toString(stringifier = stringify) {
    if (stringifier.stringify) stringifier = stringifier.stringify
    let result = ''
    stringifier(this, i => {
      result += i
    })
    return result
  }

  warn(result, text, opts = {}) {
    let data = { node: this }