Method expandMessageArgs_

src/utils/log.js:351–365

* Either redirects a pair of (errorId, ...args) to a URL where the full * message is displayed, or displays it from a fetched table. * * This method is used by the output of the `transform-log-methods` babel * plugin. It should not be used directly. Use the (*error|assert*|info|warn)

(parts)

   * @private
   */
  expandMessageArgs_(parts) {
    // First value should exist.
    const id = parts.shift();
    // Best effort fetch of message template table.
    // Since this is async, the first few logs might be indirected to a URL even
    // if in development mode. Message table is ~small so this should be a short
    // gap.
    if (getMode(this.win).development) {
      this.fetchExternalMessagesOnce_();
    }

    return this.messages_?.[id]
      ? [this.messages_[id]].concat(parts)
      : [`More info at ${externalMessageUrl(id, parts)}`];
  }

  /**
   * Throws an error if the first argument isn't trueish.