feat: add computeDeltaXGivenDeltaY

primitivefinance · Nov 16, 2023 · 032d377 · 032d377
1 parent 8461737
commit 032d377
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/contracts/strategies/G3MStrategyLib.sol b/contracts/strategies/G3MStrategyLib.sol
@@ -91,4 +91,13 @@ library G3MStrategyLib {
         deltaY = reserveY.divWadDown(reserveX).mulWadDown(reserveX + deltaX)
             - reserveY;
     }
+
+    function computeDeltaXGivenDeltaY(
+        uint256 reserveX,
+        uint256 reserveY,
+        uint256 deltaY
+    ) internal pure returns (uint256 deltaX) {
+        deltaX = reserveX.divWadDown(reserveY).mulWadDown(reserveY + deltaY)
+            - reserveX;
+    }
 }