Method constructor

src/lib/json_buffer.ts:128–148

(
    obj: T,
    optionsOrBuffer?: SharedArrayBuffer | { size?: number },
  )

  constructor(initial: T, options?: { size?: number });
  constructor(initial: T, buffer: SharedArrayBuffer);
  constructor(
    obj: T,
    optionsOrBuffer?: SharedArrayBuffer | { size?: number },
  ) {
    super();
    if (optionsOrBuffer instanceof SharedArrayBuffer) {
      this.buffer = optionsOrBuffer;
      this.initViews();

      if (Atomics.load(this.u32, OFFSET_FREE_PTR >> 2) === 0) {
        this.initializeBuffer(obj);
      }
    } else {
      const size = optionsOrBuffer?.size || 1024 * 64;
      this.buffer = new SharedArrayBuffer(size);
      this.initViews();
      this.initializeBuffer(obj);
    }

    return this.getRootProxy();
  }

  private initViews() {
    this.u32 = new Uint32Array(this.buffer);