Method markDirty

lib/node.js:195–203

()

  }

  markDirty() {
    if (this[isClean]) {
      this[isClean] = false
      let next = this
      while ((next = next.parent)) {
        next[isClean] = false
      }
    }
  }

  next() {
    if (!this.parent) return undefined