Method writeHead

javascript/packages/core/lib/gen/map.ts:97–115

(
    keyInfo: ElementInfo,
    valueInfo: ElementInfo,
    withOutSize = false,
  )

  }

  private writeHead(
    keyInfo: ElementInfo,
    valueInfo: ElementInfo,
    withOutSize = false,
  ) {
    // KV header
    const header = this.getHead(keyInfo, valueInfo);
    // chunkSize default 0 | KV header
    this.writeContext.writer.writeUint8(header);

    if (!withOutSize) {
      // chunkSize, max 255
      this.chunkOffset = this.writeContext.writer.writeGetCursor();
      this.writeContext.writer.writeUint8(0);
    } else {
      this.chunkOffset = 0;
    }
    return header;
  }

  public isFirst() {
    return this.chunkSize === 0 || this.chunkSize === 1;