Liquidity.Party/tycho-execution
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fix: Support Euler in swapExactInput

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Do the token transfers before calling swap on the pool manager

Took 13 minutes


Took 10 seconds
This commit is contained in:
Diana Carvalho
2025-10-09 11:34:26 +02:00
parent d13b4d8586
commit b83f7c41f6
2 changed files with 78 additions and 21 deletions
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22
foundry/src/executors/UniswapV4Executor.sol
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@@ -332,6 +332,7 @@ contract UniswapV4Executor is
uint128 amountOut = 0;
Currency swapCurrencyIn = currencyIn;
uint256 swapAmountIn = amountIn;
_settle(currencyIn, amountIn, transferType);
unchecked {
uint256 pathLength = path.length;
PathKey calldata pathKey;
@@ -353,12 +354,6 @@ contract UniswapV4Executor is
}
}
uint256 amount = _getFullDebt(currencyIn);
if (amount > amountIn) {
revert UniswapV4Executor__V4TooMuchRequested(amountIn, amount);
}
_settle(currencyIn, amount, transferType);
_take(
swapCurrencyIn, // at the end of the loop this is actually currency out
receiver,
@@ -409,21 +404,6 @@ contract UniswapV4Executor is
amount = uint256(_amount);
}
/// @notice Obtain the full amount owed by this contract (negative delta)
/// @param currency Currency to get the delta for
/// @return amount The amount owed by this contract as a uint256
function _getFullDebt(Currency currency)
internal
view
returns (uint256 amount)
{
int256 _amount = poolManager.currencyDelta(address(this), currency);
// If the amount is positive, it should be taken not settled.
if (_amount > 0) revert UniswapV4Executor__DeltaNotNegative(currency);
// Casting is safe due to limits on the total supply of a pool
amount = uint256(-_amount);
}
/**
* @notice Pays and settles a currency to the pool manager.
* @dev The implementing contract must ensure that the `payer` is a secure address.