Method buffer

payloads/rce_worker.js:92–157

()

      }
    }
    buffer() {
      if (this.__buffer) return this.__buffer;
      let bufferSize = 0;
      for (const arg of this.argList) {
        const alignment = Encoder.argumentAlignment(arg);
        const remainder = bufferSize % alignment;
        if (remainder) {
          bufferSize += alignment - remainder;
        }
        bufferSize += Encoder.argumentSize(arg);
      }
      const buffer = new ArrayBuffer(bufferSize);
      const view = new DataView(buffer);
      let bufferOffset = 0;
      for (const arg of this.argList) {
        const alignment = Encoder.argumentAlignment(arg);
        const remainder = bufferOffset % alignment;
        if (remainder) {
          bufferOffset += alignment - remainder;
        }
        switch (arg.type) {
          case 'float':
            view.setFloat32(bufferOffset, arg.value, true);
            break;
          case 'uint64_t':
            view.setBigUint64(bufferOffset, arg.value, true);
            break;
          case 'int64_t':
            view.setBigInt64(bufferOffset, arg.value, true);
            break;
          case 'uint32_t':
            view.setUint32(bufferOffset, arg.value, true);
            break;
          case 'int32_t':
            view.setInt32(bufferOffset, arg.value, true);
            break;
          case 'uint16_t':
            view.setUint16(bufferOffset, arg.value, true);
            break;
          case 'int16_t':
            view.setInt16(bufferOffset, arg.value, true);
            break;
          case 'uint8_t':
            view.setUint8(bufferOffset, arg.value);
            break;
          case 'int8_t':
            view.setInt8(bufferOffset, arg.value);
            break;
          case 'bool':
            view.setInt8(bufferOffset, !!arg.value);
            break;
          case 'bytes':
            const buffer_u8 = new Uint8Array(buffer);
            if (typeof arg.value == 'string') {
              for (let i = 0; i < arg.value.length; ++i) buffer_u8[bufferOffset + i] = arg.value.charCodeAt(i);
            } else {
              for (let i = 0; i < arg.value.byteLength; ++i) buffer_u8[bufferOffset + i] = arg.value[i];
            }