Merge branch 'dcmt/monad-univ3'

Author: duncancmt

CHANGELOG.md

@@ -42,6 +42,7 @@ Master list of UniV3 forks:
 * Create new Settler version for intent-based settlement -- the taker only signs
   the slippage, not the actions
   * This is now `tokenId` 4
+* Add UniswapV3 UniV3 fork to Monad Testnet
 
 ## 2025-01-23
 

src/chains/MonadTestnet/Common.sol

@@ -11,7 +11,7 @@ import {ISignatureTransfer} from "@permit2/interfaces/ISignatureTransfer.sol";
 import {UnknownForkId} from "../../core/SettlerErrors.sol";
 
 import {
-    /* uniswapV3Factory, */
+    uniswapV3MonadTestnetFactory,
     uniswapV3InitHash,
     uniswapV3ForkId,
     IUniswapV3Callback
@@ -46,6 +46,12 @@ abstract contract MonadTestnetMixin is FreeMemory, SettlerBase {
         override
         returns (address factory, bytes32 initHash, uint32 callbackSelector)
     {
-        revert UnknownForkId(forkId);
+        if (forkId == uniswapV3ForkId) {
+            factory = uniswapV3MonadTestnetFactory;
+            initHash = uniswapV3InitHash;
+            callbackSelector = uint32(IUniswapV3Callback.uniswapV3SwapCallback.selector);
+        } else {
+            revert UnknownForkId(forkId);
+        }
     }
 }

src/core/univ3forks/UniswapV3.sol

@@ -15,6 +15,7 @@ address constant uniswapV3WorldChainFactory = 0x7a5028BDa40e7B173C278C5342087826
 address constant uniswapV3GnosisFactory = 0xe32F7dD7e3f098D518ff19A22d5f028e076489B1;
 address constant uniswapV3SonicFactory = 0xcb2436774C3e191c85056d248EF4260ce5f27A9D;
 address constant uniswapV3InkFactory = 0x640887A9ba3A9C53Ed27D0F7e8246A4F933f3424;
+address constant uniswapV3MonadTestnetFactory = 0x961235a9020B05C44DF1026D956D1F4D78014276;
 bytes32 constant uniswapV3InitHash = 0xe34f199b19b2b4f47f68442619d555527d244f78a3297ea89325f843f87b8b54;
 uint8 constant uniswapV3ForkId = 0;