/* @flow */
"use strict"
module.exports = function (atRule/*: postcss$atRule*/)/*: number*/ {
  // Initial 1 is for the `@`
  let index = 1 + atRule.name.length
  if (atRule.raws.afterName) {
    index += atRule.raws.afterName.length
  }
  return index
}
