Add shortcuts to MPC types (#488)

Summary:
Pull Request resolved: #488

Adding some quick shortcuts to Batch Types that are commonly used in MPC games. This should let us avoid having to redefine for each separate binary.

Reviewed By: haochenuw

Differential Revision:
D43289317

Privacy Context Container: L1121121

fbshipit-source-id: f38f95f50baf8a590119d77029489896a61f4cda

fbpcf/frontend/MPCTypes.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#pragma once
+
+#include "fbpcf/frontend/Bit.h"
+#include "fbpcf/frontend/BitString.h"
+#include "fbpcf/frontend/Int.h"
+#include "fbpcf/frontend/mpcGame.h"
+
+namespace fbpcf::frontend {
+
+template <int schedulerId, bool usingBatch = true>
+class MPCTypes {
+  static const size_t charLength = 8;
+  static const size_t int32Length = 32;
+  static const size_t int64Length = 64;
+
+ public:
+  /** Secure private types **/
+  using SecBool = typename MpcGame<schedulerId>::template SecBit<usingBatch>;
+
+  // signed ints
+  using SecChar = typename MpcGame<
+      schedulerId>::template SecSignedInt<charLength, usingBatch>;
+  using Sec32Int = typename MpcGame<
+      schedulerId>::template SecSignedInt<int32Length, usingBatch>;
+  using Sec64Int = typename MpcGame<
+      schedulerId>::template SecSignedInt<int64Length, usingBatch>;
+
+  // unsigned ints
+  using SecUnsignedChar = typename MpcGame<
+      schedulerId>::template SecUnsignedInt<charLength, usingBatch>;
+  using SecUnsigned32Int = typename MpcGame<
+      schedulerId>::template SecUnsignedInt<int32Length, usingBatch>;
+  using SecUnsigned64Int = typename MpcGame<
+      schedulerId>::template SecUnsignedInt<int64Length, usingBatch>;
+
+  /** Public shared types **/
+  using PubBool = typename MpcGame<schedulerId>::template PubBit<usingBatch>;
+
+  // signed ints
+  using PubChar = typename MpcGame<
+      schedulerId>::template PubSignedInt<charLength, usingBatch>;
+  using Pub32Int = typename MpcGame<
+      schedulerId>::template PubSignedInt<int32Length, usingBatch>;
+  using Pub64Int = typename MpcGame<
+      schedulerId>::template PubSignedInt<int64Length, usingBatch>;
+
+  // unsigned ints
+  using PubUnsignedChar = typename MpcGame<
+      schedulerId>::template PubUnsignedInt<charLength, usingBatch>;
+  using PubUnsigned32Int = typename MpcGame<
+      schedulerId>::template PubUnsignedInt<int32Length, usingBatch>;
+  using PubUnsigned64Int = typename MpcGame<
+      schedulerId>::template PubUnsignedInt<int64Length, usingBatch>;
+};
+
+} // namespace fbpcf::frontend