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Convert WETH to ETH

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This commit is contained in:
true-eye 2021-02-11 06:49:38 +11:00
parent 06c64d0ac5
commit c1309c7484
1 changed files with 21 additions and 3 deletions
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24
contracts/connectors/matcha.sol
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@ -42,6 +42,17 @@ contract MatchaHelpers is Stores, DSMath {
) internal {
if (isEth) token.deposit.value(amount)();
}
function convertWethToEth(
bool isEth,
TokenInterface token,
uint256 amount
) internal {
if (isEth) {
token.approve(address(token), amount);
token.withdraw(amount);
}
}
}
contract MatchaResolver is MatchaHelpers {
@ -89,17 +100,24 @@ contract MatchaEventResolver is MatchaResolver {
contract MatchaResolverHelpers is MatchaEventResolver {
function _swap(MatchaData memory matchaData, uint256 setId) internal {
TokenInterface _sellAddr = matchaData.sellToken;
TokenInterface _buyAddr = matchaData.buyToken;
uint256 ethAmt;
bool isEth = address(_sellAddr) == getEthAddr();
if (isEth) {
TokenInterface tokenContract = TokenInterface(getWETHAddress());
if (address(_sellAddr) == getEthAddr()) {
ethAmt = matchaData._sellAmt;
convertEthToWeth(isEth, TokenInterface(getWETHAddress()), ethAmt);
convertEthToWeth(true, tokenContract, ethAmt);
} else {
TokenInterface(_sellAddr).approve(getMatchaAddress(), matchaData._sellAmt);
}
matchaData._buyAmt = matchaSwap(matchaData, ethAmt);
if (address(_buyAddr) == getEthAddr()) {
convertWethToEth(true, tokenContract, matchaData._buyAmt);
}
setUint(setId, matchaData._buyAmt);
emitLogSwap(matchaData, setId);