Function refreshCleaned

packages/lang-core/src/parser/parser.ts:469–478

()

  // and re-scan. When the prefix is stable (the common streaming case) the cache
  // is kept, so a partial trailing statement never blanks already-completed ones.
  function refreshCleaned() {
    const next = preprocess(buf);
    if (!next.startsWith(cleaned.slice(0, completedEnd))) {
      completedEnd = 0;
      completedStmtMap.clear();
      completedCount = 0;
      firstId = "";
    }
    cleaned = next;
  }

  function scanNewCompleted(): number {
    let depth = 0,