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Convert ETH to WETH

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This commit is contained in:
true-eye 2021-02-11 06:39:53 +11:00
parent 81fffeb871
commit 06c64d0ac5
1 changed files with 17 additions and 3 deletions
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20
contracts/connectors/matcha.sol
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@ -14,6 +14,10 @@ contract MatchaHelpers is Stores, DSMath {
return 0xDef1C0ded9bec7F1a1670819833240f027b25EfF;
}
function getWETHAddress() internal pure returns (address) {
return 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
}
function convert18ToDec(uint256 _dec, uint256 _amt) internal pure returns (uint256 amt) {
amt = (_amt / 10**(18 - _dec));
}
@ -30,6 +34,14 @@ contract MatchaHelpers is Stores, DSMath {
buyDec = address(buyAddr) == getEthAddr() ? 18 : buyAddr.decimals();
sellDec = address(sellAddr) == getEthAddr() ? 18 : sellAddr.decimals();
}
function convertEthToWeth(
bool isEth,
TokenInterface token,
uint256 amount
) internal {
if (isEth) token.deposit.value(amount)();
}
}
contract MatchaResolver is MatchaHelpers {
@ -42,7 +54,7 @@ contract MatchaResolver is MatchaHelpers {
bytes callData;
}
function matchaSwap(MatchaData memory matchaData, uint256 ethAmt) internal returns (uint256 buyAmt) {
function matchaSwap(MatchaData memory matchaData, uint256 wethAmt) internal returns (uint256 buyAmt) {
TokenInterface buyToken = matchaData.buyToken;
(uint256 _buyDec, uint256 _sellDec) = getTokensDec(buyToken, matchaData.sellToken);
uint256 _sellAmt18 = convertTo18(_sellDec, matchaData._sellAmt);
@ -50,7 +62,7 @@ contract MatchaResolver is MatchaHelpers {
uint256 initalBal = getTokenBal(buyToken);
(bool success, ) = address(getMatchaAddress()).call.value(ethAmt)(matchaData.callData);
(bool success, ) = address(getMatchaAddress()).call.value(wethAmt)(matchaData.callData);
if (!success) revert("matcha-swap-failed");
uint256 finalBal = getTokenBal(buyToken);
@ -79,8 +91,10 @@ contract MatchaResolverHelpers is MatchaEventResolver {
TokenInterface _sellAddr = matchaData.sellToken;
uint256 ethAmt;
if (address(_sellAddr) == getEthAddr()) {
bool isEth = address(_sellAddr) == getEthAddr();
if (isEth) {
ethAmt = matchaData._sellAmt;
convertEthToWeth(isEth, TokenInterface(getWETHAddress()), ethAmt);
} else {
TokenInterface(_sellAddr).approve(getMatchaAddress(), matchaData._sellAmt);
}