feat: add balancer v2 executor

2025-01-27 22:54:56 +05:30
parent 0e0c13b169
commit a700189aaf
98 changed files with 6368 additions and 1 deletions
--- a/foundry/lib/balancer-labs/v2-interfaces/contracts/vault/IPoolSwapStructs.sol
+++ b/foundry/lib/balancer-labs/v2-interfaces/contracts/vault/IPoolSwapStructs.sol
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+pragma solidity >=0.7.0 <0.9.0;
+pragma experimental ABIEncoderV2;
+
+import "../solidity-utils/openzeppelin/IERC20.sol";
+
+import "./IVault.sol";
+
+interface IPoolSwapStructs {
+    // This is not really an interface - it just defines common structs used by other interfaces: IGeneralPool and
+    // IMinimalSwapInfoPool.
+    //
+    // This data structure represents a request for a token swap, where `kind` indicates the swap type ('given in' or
+    // 'given out') which indicates whether or not the amount sent by the pool is known.
+    //
+    // The pool receives `tokenIn` and sends `tokenOut`. `amount` is the number of `tokenIn` tokens the pool will take
+    // in, or the number of `tokenOut` tokens the Pool will send out, depending on the given swap `kind`.
+    //
+    // All other fields are not strictly necessary for most swaps, but are provided to support advanced scenarios in
+    // some Pools.
+    //
+    // `poolId` is the ID of the Pool involved in the swap - this is useful for Pool contracts that implement more than
+    // one Pool.
+    //
+    // The meaning of `lastChangeBlock` depends on the Pool specialization:
+    //  - Two Token or Minimal Swap Info: the last block in which either `tokenIn` or `tokenOut` changed its total
+    //    balance.
+    //  - General: the last block in which *any* of the Pool's registered tokens changed its total balance.
+    //
+    // `from` is the origin address for the funds the Pool receives, and `to` is the destination address
+    // where the Pool sends the outgoing tokens.
+    //
+    // `userData` is extra data provided by the caller - typically a signature from a trusted party.
+    struct SwapRequest {
+        IVault.SwapKind kind;
+        IERC20 tokenIn;
+        IERC20 tokenOut;
+        uint256 amount;
+        // Misc data
+        bytes32 poolId;
+        uint256 lastChangeBlock;
+        address from;
+        address to;
+        bytes userData;
+    }
+}