Method spawnOne

src/extraction/parse-pool.ts:192–209

()

  }

  private spawnOne(): void {
    if (this.destroyed || this.workers.size >= this.maxSize || !this.healthy) return;
    let w: ParsePoolWorker;
    try {
      w = this.createWorker();
    } catch {
      this.totalCrashes++; // counts toward the circuit breaker
      return;
    }
    this.workers.add(w);
    this.pending.add(w);
    this.parseCounts.set(w, 0);
    w.on('message', (m) => this.onMessage(w, (m ?? {}) as ParseWorkerMessage));
    w.on('error', (e) => this.onWorkerGone(w, `Worker error: ${e?.message ?? 'unknown'}`));
    w.on('exit', (code) => { if (code !== 0) this.onWorkerGone(w, `Worker exited with code ${code}`); });
    // Load grammars; the worker replies 'grammars-loaded' and only then is idle.
    w.postMessage({ type: 'load-grammars', languages: this.languages });
  }

  private onMessage(w: ParsePoolWorker, m: ParseWorkerMessage): void {
    if (m.type === 'grammars-loaded') {