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change ERC20 to use Tokeninterface to save connector size;

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This commit is contained in:
Lecky Lao 2020-07-05 00:55:16 +10:00
parent 3c8e35b676
commit 1c51ff67e6
1 changed files with 7 additions and 9 deletions
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16
contracts/connectors/curvesbtc.sol
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@ -4,9 +4,7 @@ pragma solidity ^0.6.0;
import { MemoryInterface, EventInterface} from "../common/interfaces.sol";
import { Stores } from "../common/stores.sol";
import { DSMath } from "../common/math.sol";
// import files from OZ
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import { TokenInterface } from "../common/interfaces.sol";
interface ICurve {
function coins(int128 tokenId) external view returns (address token);
@ -90,8 +88,8 @@ contract CurveSBTCProtocol is CurveSBTCHelpers {
) external payable {
uint _sellAmt = getUint(getId, sellAmt);
ICurve curve = ICurve(getCurveSwapAddr());
ERC20 _buyToken = ERC20(buyAddr);
ERC20 _sellToken = ERC20(sellAddr);
TokenInterface _buyToken = TokenInterface(buyAddr);
TokenInterface _sellToken = TokenInterface(sellAddr);
_sellAmt = _sellAmt == uint(-1) ? _sellToken.balanceOf(address(this)) : _sellAmt;
_sellToken.approve(address(curve), _sellAmt);
@ -127,7 +125,7 @@ contract CurveSBTCProtocol is CurveSBTCHelpers {
uint setId
) external payable {
uint256 _amt = getUint(getId, amt);
ERC20 tokenContract = ERC20(token);
TokenInterface tokenContract = TokenInterface(token);
_amt = _amt == uint(-1) ? tokenContract.balanceOf(address(this)) : _amt;
uint[3] memory _amts;
@ -138,7 +136,7 @@ contract CurveSBTCProtocol is CurveSBTCHelpers {
uint _amt18 = convertTo18(tokenContract.decimals(), _amt);
uint _slippageAmt = wmul(unitAmt, _amt18);
ERC20 curveTokenContract = ERC20(getCurveTokenAddr());
TokenInterface curveTokenContract = TokenInterface(getCurveTokenAddr());
uint initialCurveBal = curveTokenContract.balanceOf(address(this));
ICurve(getCurveSwapAddr()).add_liquidity(_amts, _slippageAmt);
@ -173,7 +171,7 @@ contract CurveSBTCProtocol is CurveSBTCHelpers {
uint _amt = getUint(getId, amt);
int128 tokenId = getTokenI(token);
ERC20 curveTokenContract = ERC20(getCurveTokenAddr());
TokenInterface curveTokenContract = TokenInterface(getCurveTokenAddr());
ICurve curveSwap = ICurve(getCurveSwapAddr());
uint _curveAmt;
@ -187,7 +185,7 @@ contract CurveSBTCProtocol is CurveSBTCHelpers {
_curveAmt = curveSwap.calc_token_amount(_amts, false);
}
uint _amt18 = convertTo18(ERC20(token).decimals(), _amt);
uint _amt18 = convertTo18(TokenInterface(token).decimals(), _amt);
uint _slippageAmt = wmul(unitAmt, _amt18);
curveTokenContract.approve(address(curveSwap), 0);