feat: Initial setup and price() function implementation
This commit is contained in:
domenicodev
282
evm/src/angle/AngleAdapter.sol
Normal file
282
evm/src/angle/AngleAdapter.sol
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@@ -0,0 +1,282 @@
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// SPDX-License-Identifier: AGPL-3.0-or-later
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pragma experimental ABIEncoderV2;
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pragma solidity ^0.8.13;
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import {IERC20, ISwapAdapter} from "src/interfaces/ISwapAdapter.sol";
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/// @title AngleAdapter
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contract AngleAdapter is ISwapAdapter {
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ITransmuter transmuter;
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constructor(ITransmuter _transmuter) {
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transmuter = _transmuter;
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}
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function price(
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bytes32,
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IERC20 _sellToken,
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IERC20 _buyToken,
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uint256[] memory _specifiedAmounts
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) external view override returns (Fraction[] memory _prices) {
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_prices = new Fraction[](_specifiedAmounts.length);
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address sellTokenAddress = address(_sellToken);
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address buyTokenAddress = address(_buyToken);
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for (uint256 i = 0; i < _specifiedAmounts.length; i++) {
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_prices[i] = getPriceAt(_specifiedAmounts[i], sellTokenAddress, buyTokenAddress);
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}
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}
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function swap(
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bytes32 poolId,
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IERC20 sellToken,
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IERC20 buyToken,
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OrderSide side,
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uint256 specifiedAmount
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) external returns (Trade memory trade) {
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revert NotImplemented("TemplateSwapAdapter.swap");
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}
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function getLimits(bytes32, IERC20 sellToken, IERC20 buyToken)
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external
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returns (uint256[] memory limits)
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{
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revert NotImplemented("TemplateSwapAdapter.getLimits");
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}
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function getCapabilities(bytes32 poolId, IERC20 sellToken, IERC20 buyToken)
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external
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returns (Capability[] memory capabilities)
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{
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revert NotImplemented("TemplateSwapAdapter.getCapabilities");
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}
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function getTokens(bytes32 poolId)
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external
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returns (IERC20[] memory tokens)
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{
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revert NotImplemented("TemplateSwapAdapter.getTokens");
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}
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function getPoolIds(uint256 offset, uint256 limit)
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external
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returns (bytes32[] memory ids)
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{
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revert NotImplemented("TemplateSwapAdapter.getPoolIds");
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}
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/// @notice Calculates pool prices for specified amounts
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/// @param amountIn The amount of the token being sold
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/// @param tokenIn The token being sold
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/// @param tokenOut The token being bought
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/// @return The price as a fraction corresponding to the provided amount.
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function getPriceAt(uint256 amountIn, address tokenIn, address tokenOut)
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internal
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view
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returns (Fraction memory)
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{
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uint256 amountOut = transmuter.quoteIn(amountIn, tokenIn, tokenOut);
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return Fraction(
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amountOut,
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amountIn
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);
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}
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}
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abstract contract ITransmuter {
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struct Tuple6871229 {
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address facetAddress;
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uint8 action;
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bytes4[] functionSelectors;
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}
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struct Tuple1236461 {
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address facetAddress;
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bytes4[] functionSelectors;
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}
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struct Tuple3550792 {
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uint8 isManaged;
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uint8 isMintLive;
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uint8 isBurnLive;
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uint8 decimals;
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uint8 onlyWhitelisted;
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uint216 normalizedStables;
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uint64[] xFeeMint;
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int64[] yFeeMint;
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uint64[] xFeeBurn;
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int64[] yFeeBurn;
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bytes oracleConfig;
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bytes whitelistData;
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Tuple5479340 managerData;
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}
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struct Tuple5479340 {
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address[] subCollaterals;
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bytes config;
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}
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function diamondCut(Tuple6871229[] memory _diamondCut, address _init, bytes memory _calldata) external {}
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function implementation() external view returns (address) {}
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function setDummyImplementation(address _implementation) external {}
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function facetAddress(bytes4 _functionSelector) external view returns (address facetAddress_) {}
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function facetAddresses() external view returns (address[] memory facetAddresses_) {}
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function facetFunctionSelectors(address _facet) external view returns (bytes4[] memory _facetFunctionSelectors) {}
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function facets() external view returns (Tuple1236461[] memory facets_) {}
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function accessControlManager() external view returns (address) {}
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function agToken() external view returns (address) {}
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function getCollateralBurnFees(
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address collateral
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) external view returns (uint64[] memory xFeeBurn, int64[] memory yFeeBurn) {}
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function getCollateralDecimals(address collateral) external view returns (uint8) {}
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function getCollateralInfo(address collateral) external view returns (Tuple3550792 memory) {}
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function getCollateralList() external view returns (address[] memory) {}
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function getCollateralMintFees(
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address collateral
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) external view returns (uint64[] memory xFeeMint, int64[] memory yFeeMint) {}
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function getCollateralRatio() external view returns (uint64 collatRatio, uint256 stablecoinsIssued) {}
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function getCollateralWhitelistData(address collateral) external view returns (bytes memory) {}
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function getIssuedByCollateral(
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address collateral
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) external view returns (uint256 stablecoinsFromCollateral, uint256 stablecoinsIssued) {}
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function getManagerData(address collateral) external view returns (bool, address[] memory, bytes memory) {}
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function getOracle(
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address collateral
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) external view returns (uint8 oracleType, uint8 targetType, bytes memory oracleData, bytes memory targetData) {}
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function getOracleValues(
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address collateral
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) external view returns (uint256 mint, uint256 burn, uint256 ratio, uint256 minRatio, uint256 redemption) {}
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function getRedemptionFees()
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external
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view
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returns (uint64[] memory xRedemptionCurve, int64[] memory yRedemptionCurve)
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{}
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function getTotalIssued() external view returns (uint256) {}
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function isPaused(address collateral, uint8 action) external view returns (bool) {}
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function isTrusted(address sender) external view returns (bool) {}
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function isTrustedSeller(address sender) external view returns (bool) {}
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function isValidSelector(bytes4 selector) external view returns (bool) {}
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function isWhitelistedCollateral(address collateral) external view returns (bool) {}
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function isWhitelistedForCollateral(address collateral, address sender) external returns (bool) {}
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function isWhitelistedForType(uint8 whitelistType, address sender) external view returns (bool) {}
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function sellRewards(uint256 minAmountOut, bytes memory payload) external returns (uint256 amountOut) {}
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function addCollateral(address collateral) external {}
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function adjustStablecoins(address collateral, uint128 amount, bool increase) external {}
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function changeAllowance(address token, address spender, uint256 amount) external {}
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function recoverERC20(address collateral, address token, address to, uint256 amount) external {}
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function revokeCollateral(address collateral) external {}
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function setAccessControlManager(address _newAccessControlManager) external {}
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function setCollateralManager(address collateral, Tuple5479340 memory managerData) external {}
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function setOracle(address collateral, bytes memory oracleConfig) external {}
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function setWhitelistStatus(address collateral, uint8 whitelistStatus, bytes memory whitelistData) external {}
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function toggleTrusted(address sender, uint8 t) external {}
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function setFees(address collateral, uint64[] memory xFee, int64[] memory yFee, bool mint) external {}
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function setRedemptionCurveParams(uint64[] memory xFee, int64[] memory yFee) external {}
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function togglePause(address collateral, uint8 pausedType) external {}
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function toggleWhitelist(uint8 whitelistType, address who) external {}
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function quoteIn(uint256 amountIn, address tokenIn, address tokenOut) external view returns (uint256 amountOut) {}
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function quoteOut(uint256 amountOut, address tokenIn, address tokenOut) external view returns (uint256 amountIn) {}
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function swapExactInput(
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uint256 amountIn,
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uint256 amountOutMin,
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address tokenIn,
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address tokenOut,
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address to,
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uint256 deadline
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) external returns (uint256 amountOut) {}
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function swapExactInputWithPermit(
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uint256 amountIn,
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uint256 amountOutMin,
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address tokenIn,
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address to,
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uint256 deadline,
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bytes memory permitData
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) external returns (uint256 amountOut) {}
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function swapExactOutput(
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uint256 amountOut,
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uint256 amountInMax,
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address tokenIn,
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address tokenOut,
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address to,
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uint256 deadline
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) external returns (uint256 amountIn) {}
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function swapExactOutputWithPermit(
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uint256 amountOut,
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uint256 amountInMax,
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address tokenIn,
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address to,
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uint256 deadline,
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bytes memory permitData
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) external returns (uint256 amountIn) {}
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function quoteRedemptionCurve(
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uint256 amount
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) external view returns (address[] memory tokens, uint256[] memory amounts) {}
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function redeem(
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uint256 amount,
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address receiver,
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uint256 deadline,
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uint256[] memory minAmountOuts
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) external returns (address[] memory tokens, uint256[] memory amounts) {}
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function redeemWithForfeit(
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uint256 amount,
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address receiver,
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uint256 deadline,
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uint256[] memory minAmountOuts,
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address[] memory forfeitTokens
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) external returns (address[] memory tokens, uint256[] memory amounts) {}
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function updateNormalizer(uint256 amount, bool increase) external returns (uint256) {}
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}
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36
evm/src/angle/manifest.yaml
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36
evm/src/angle/manifest.yaml
Normal file
@@ -0,0 +1,36 @@
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# information about the author helps us reach out in case of issues.
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author:
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name: YourCompany
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email: developer@yourcompany.xyz
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# Protocol Constants
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constants:
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protocol_gas: 30000
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# minimum capabilities we can expect, individual pools may extend these
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capabilities:
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- SellSide
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- BuySide
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- PriceFunction
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# The file containing the adapter contract
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contract: TemplateSwapAdapter.sol
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# Deployment instances used to generate chain specific bytecode.
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instances:
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- chain:
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name: mainnet
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id: 0
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arguments:
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- "0x00253582b2a3FE112feEC532221d9708c64cEFAb"
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# Specify some automatic test cases in case getPoolIds and
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# getTokens are not implemented.
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tests:
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instances:
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- pool_id: "0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc"
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sell_token: "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
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buy_token: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
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block: 17000000
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chain:
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id: 0
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name: mainnet
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