Method cleanup

packages/compiler-core/src/tokenizer.ts:1098–1116

* Remove data that has already been consumed from the buffer.

()

   * Remove data that has already been consumed from the buffer.
   */
  private cleanup() {
    class="cm">// If we are inside of text or attributes, emit what we already have.
    if (this.sectionStart !== this.index) {
      if (
        this.state === State.Text ||
        (this.state === State.InRCDATA && this.sequenceIndex === 0)
      ) {
        this.cbs.ontext(this.sectionStart, this.index)
        this.sectionStart = this.index
      } else if (
        this.state === State.InAttrValueDq ||
        this.state === State.InAttrValueSq ||
        this.state === State.InAttrValueNq
      ) {
        this.cbs.onattribdata(this.sectionStart, this.index)
        this.sectionStart = this.index
      }
    }
  }

  private finish() {
    if (!__BROWSER__ && this.state === State.InEntity) {