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Contract Name:
AToken
Compiler Version
v0.8.12+commit.f00d7308
Optimization Enabled:
Yes with 1000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.12; pragma abicoder v2; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import {ILendingPool} from "../../interfaces/ILendingPool.sol"; import {IAToken} from "../../interfaces/IAToken.sol"; import {WadRayMath} from "../libraries/math/WadRayMath.sol"; import {Errors} from "../libraries/helpers/Errors.sol"; import {VersionedInitializable} from "../libraries/aave-upgradeability/VersionedInitializable.sol"; import {IncentivizedERC20} from "./IncentivizedERC20.sol"; import {IAaveIncentivesController} from "../../interfaces/IAaveIncentivesController.sol"; import "@openzeppelin/contracts/utils/math/SafeMath.sol"; import {IMiddleFeeDistribution} from "../../interfaces/IMiddleFeeDistribution.sol"; /** * @title Aave ERC20 AToken * @dev Implementation of the interest bearing token for the Aave protocol * @author Aave */ contract AToken is VersionedInitializable, IncentivizedERC20("ATOKEN_IMPL", "ATOKEN_IMPL", 0), IAToken { using WadRayMath for uint256; using SafeERC20 for IERC20; using SafeMath for uint256; bytes public constant EIP712_REVISION = bytes("1"); bytes32 internal constant EIP712_DOMAIN = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"); bytes32 public constant PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); uint256 public constant ATOKEN_REVISION = 0x1; /// @dev owner => next valid nonce to submit with permit() mapping(address => uint256) public _nonces; bytes32 public DOMAIN_SEPARATOR; address internal _treasury; IAaveIncentivesController internal _incentivesController; modifier onlyLendingPool() { require(_msgSender() == address(_pool), Errors.CT_CALLER_MUST_BE_LENDING_POOL); _; } function getRevision() internal pure virtual override returns (uint256) { return ATOKEN_REVISION; } /** * @dev Initializes the aToken * @param pool The address of the lending pool where this aToken will be used * @param treasury The address of the Aave treasury, receiving the fees on this aToken * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH) * @param incentivesController The smart contract managing potential incentives distribution * @param aTokenDecimals The decimals of the aToken, same as the underlying asset's * @param aTokenName The name of the aToken * @param aTokenSymbol The symbol of the aToken */ function initialize( ILendingPool pool, address treasury, address underlyingAsset, IAaveIncentivesController incentivesController, uint8 aTokenDecimals, string calldata aTokenName, string calldata aTokenSymbol, bytes calldata params ) external override initializer { uint256 chainId; //solium-disable-next-line assembly { chainId := chainid() } DOMAIN_SEPARATOR = keccak256( abi.encode(EIP712_DOMAIN, keccak256(bytes(aTokenName)), keccak256(EIP712_REVISION), chainId, address(this)) ); _setName(aTokenName); _setSymbol(aTokenSymbol); _setDecimals(aTokenDecimals); _pool = pool; _treasury = treasury; _underlyingAsset = underlyingAsset; _incentivesController = incentivesController; emit Initialized( underlyingAsset, address(pool), treasury, address(incentivesController), aTokenDecimals, aTokenName, aTokenSymbol, params ); } /** * @dev Burns aTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying` * - Only callable by the LendingPool, as extra state updates there need to be managed * @param user The owner of the aTokens, getting them burned * @param receiverOfUnderlying The address that will receive the underlying * @param amount The amount being burned * @param index The new liquidity index of the reserve **/ function burn( address user, address receiverOfUnderlying, uint256 amount, uint256 index ) external override onlyLendingPool { uint256 amountScaled = amount.rayDiv(index); require(amountScaled != 0, Errors.CT_INVALID_BURN_AMOUNT); _burn(user, amountScaled); IERC20(_underlyingAsset).safeTransfer(receiverOfUnderlying, amount); emit Transfer(user, address(0), amount); emit Burn(user, receiverOfUnderlying, amount, index); } /** * @dev Mints `amount` aTokens to `user` * - Only callable by the LendingPool, as extra state updates there need to be managed * @param user The address receiving the minted tokens * @param amount The amount of tokens getting minted * @param index The new liquidity index of the reserve * @return `true` if the the previous balance of the user was 0 */ function mint(address user, uint256 amount, uint256 index) external override onlyLendingPool returns (bool) { uint256 previousBalance = super.balanceOf(user); uint256 amountScaled = amount.rayDiv(index); require(amountScaled != 0, Errors.CT_INVALID_MINT_AMOUNT); _mint(user, amountScaled); emit Transfer(address(0), user, amount); emit Mint(user, amount, index); return previousBalance == 0; } /** * @dev Mints aTokens to the reserve treasury * - Only callable by the LendingPool * @param amount The amount of tokens getting minted * @param index The new liquidity index of the reserve */ function mintToTreasury(uint256 amount, uint256 index) external override onlyLendingPool { if (amount == 0) { return; } address treasury = _treasury; // Compared to the normal mint, we don't check for rounding errors. // The amount to mint can easily be very small since it is a fraction of the interest ccrued. // In that case, the treasury will experience a (very small) loss, but it // wont cause potentially valid transactions to fail. _mint(treasury, amount.rayDiv(index)); emit Transfer(address(0), treasury, amount); emit Mint(treasury, amount, index); } /** * @dev Transfers aTokens in the event of a borrow being liquidated, in case the liquidators reclaims the aToken * - Only callable by the LendingPool * @param from The address getting liquidated, current owner of the aTokens * @param to The recipient * @param value The amount of tokens getting transferred **/ function transferOnLiquidation(address from, address to, uint256 value) external override onlyLendingPool { // Being a normal transfer, the Transfer() and BalanceTransfer() are emitted // so no need to emit a specific event here _transfer(from, to, value, false); emit Transfer(from, to, value); } /** * @dev Calculates the balance of the user: principal balance + interest generated by the principal * @param user The user whose balance is calculated * @return The balance of the user **/ function balanceOf(address user) public view override(IncentivizedERC20, IERC20) returns (uint256) { return super.balanceOf(user).rayMul(_pool.getReserveNormalizedIncome(_underlyingAsset)); } /** * @dev Returns the scaled balance of the user. The scaled balance is the sum of all the * updated stored balance divided by the reserve's liquidity index at the moment of the update * @param user The user whose balance is calculated * @return The scaled balance of the user **/ function scaledBalanceOf(address user) external view override returns (uint256) { return super.balanceOf(user); } /** * @dev Returns the scaled balance of the user and the scaled total supply. * @param user The address of the user * @return The scaled balance of the user * @return The scaled balance and the scaled total supply **/ function getScaledUserBalanceAndSupply(address user) external view override returns (uint256, uint256) { return (super.balanceOf(user), super.totalSupply()); } /** * @dev calculates the total supply of the specific aToken * since the balance of every single user increases over time, the total supply * does that too. * @return the current total supply **/ function totalSupply() public view override(IncentivizedERC20, IERC20) returns (uint256) { uint256 currentSupplyScaled = super.totalSupply(); if (currentSupplyScaled == 0) { return 0; } return currentSupplyScaled.rayMul(_pool.getReserveNormalizedIncome(_underlyingAsset)); } /** * @dev Returns the scaled total supply of the variable debt token. Represents sum(debt/index) * @return the scaled total supply **/ function scaledTotalSupply() public view virtual override returns (uint256) { return super.totalSupply(); } /** * @dev Returns the address of the Aave treasury, receiving the fees on this aToken **/ function RESERVE_TREASURY_ADDRESS() public view returns (address) { return _treasury; } /** * @dev Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH) **/ function UNDERLYING_ASSET_ADDRESS() public view override returns (address) { return _underlyingAsset; } /** * @dev Returns the address of the lending pool where this aToken is used **/ function POOL() public view returns (ILendingPool) { return _pool; } /** * @dev For internal usage in the logic of the parent contract IncentivizedERC20 **/ function _getIncentivesController() internal view override returns (IAaveIncentivesController) { return _incentivesController; } /** * @dev Returns the address of the incentives controller contract **/ function getIncentivesController() external view override returns (IAaveIncentivesController) { return _getIncentivesController(); } /** * @dev Transfers the underlying asset to `target`. Used by the LendingPool to transfer * assets in borrow(), withdraw() and flashLoan() * @param target The recipient of the aTokens * @param amount The amount getting transferred * @return The amount transferred **/ function transferUnderlyingTo(address target, uint256 amount) external override onlyLendingPool returns (uint256) { IERC20(_underlyingAsset).safeTransfer(target, amount); return amount; } /** * @dev Invoked to execute actions on the aToken side after a repayment. * @param user The user executing the repayment * @param amount The amount getting repaid **/ function handleRepayment(address user, uint256 amount) external override onlyLendingPool {} /** * @dev implements the permit function as for * https://github.com/ethereum/EIPs/blob/8a34d644aacf0f9f8f00815307fd7dd5da07655f/EIPS/eip-2612.md * @param owner The owner of the funds * @param spender The spender * @param value The amount * @param deadline The deadline timestamp, type(uint256).max for max deadline * @param v Signature param * @param s Signature param * @param r Signature param */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external { require(owner != address(0), "INVALID_OWNER"); //solium-disable-next-line require(block.timestamp <= deadline, "INVALID_EXPIRATION"); uint256 currentValidNonce = _nonces[owner]; bytes32 digest = keccak256( abi.encodePacked( "\x19\x01", DOMAIN_SEPARATOR, keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, currentValidNonce, deadline)) ) ); require(owner == ecrecover(digest, v, r, s), "INVALID_SIGNATURE"); _nonces[owner] = currentValidNonce.add(1); _approve(owner, spender, value); } /** * @dev Transfers the aTokens between two users. Validates the transfer * (ie checks for valid HF after the transfer) if required * @param from The source address * @param to The destination address * @param amount The amount getting transferred * @param validate `true` if the transfer needs to be validated **/ function _transfer(address from, address to, uint256 amount, bool validate) internal { address underlyingAsset = _underlyingAsset; ILendingPool pool = _pool; uint256 index = pool.getReserveNormalizedIncome(underlyingAsset); uint256 fromBalanceBefore = super.balanceOf(from).rayMul(index); uint256 toBalanceBefore = super.balanceOf(to).rayMul(index); super._transfer(from, to, amount.rayDiv(index)); if (validate) { pool.finalizeTransfer(underlyingAsset, from, to, amount, fromBalanceBefore, toBalanceBefore); } emit BalanceTransfer(from, to, amount, index); } /** * @dev Overrides the parent _transfer to force validated transfer() and transferFrom() * @param from The source address * @param to The destination address * @param amount The amount getting transferred **/ function _transfer(address from, address to, uint256 amount) internal override { _transfer(from, to, amount, true); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/draft-IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.12; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return payable(msg.sender); } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; pragma experimental ABIEncoderV2; interface IAaveIncentivesController { event RewardsAccrued(address indexed user, uint256 amount); event RewardsClaimed(address indexed user, address indexed to, uint256 amount); event RewardsClaimed(address indexed user, address indexed to, address indexed claimer, uint256 amount); event ClaimerSet(address indexed user, address indexed claimer); /* * @dev Returns the configuration of the distribution for a certain asset * @param asset The address of the reference asset of the distribution * @return The asset index, the emission per second and the last updated timestamp **/ function getAssetData(address asset) external view returns (uint256, uint256, uint256); /** * @dev Whitelists an address to claim the rewards on behalf of another address * @param user The address of the user * @param claimer The address of the claimer */ function setClaimer(address user, address claimer) external; /** * @dev Returns the whitelisted claimer for a certain address (0x0 if not set) * @param user The address of the user * @return The claimer address */ function getClaimer(address user) external view returns (address); /** * @dev Configure assets for a certain rewards emission * @param assets The assets to incentivize * @param emissionsPerSecond The emission for each asset */ function configureAssets(address[] calldata assets, uint256[] calldata emissionsPerSecond) external; /** * @dev Called by the corresponding asset on any update that affects the rewards distribution * @param user The address of the user **/ function handleActionBefore(address user) external; /** * @dev Called by the corresponding asset on any update that affects the rewards distribution * @param user The address of the user * @param userBalance The balance of the user of the asset in the lending pool * @param totalSupply The total supply of the asset in the lending pool **/ function handleActionAfter(address user, uint256 userBalance, uint256 totalSupply) external; /** * @dev Returns the total of rewards of an user, already accrued + not yet accrued * @param user The address of the user * @return The rewards **/ function getRewardsBalance(address[] calldata assets, address user) external view returns (uint256); /** * @dev Claims reward for an user, on all the assets of the lending pool, accumulating the pending rewards * @param amount Amount of rewards to claim * @param to Address that will be receiving the rewards * @return Rewards claimed **/ function claimRewards(address[] calldata assets, uint256 amount, address to) external returns (uint256); /** * @dev Claims reward for an user on behalf, on all the assets of the lending pool, accumulating the pending rewards. The caller must * be whitelisted via "allowClaimOnBehalf" function by the RewardsAdmin role manager * @param amount Amount of rewards to claim * @param user Address to check and claim rewards * @param to Address that will be receiving the rewards * @return Rewards claimed **/ function claimRewardsOnBehalf( address[] calldata assets, uint256 amount, address user, address to ) external returns (uint256); /** * @dev returns the unclaimed rewards of the user * @param user the address of the user * @return the unclaimed user rewards */ function getUserUnclaimedRewards(address user) external view returns (uint256); /** * @dev returns the unclaimed rewards of the user * @param user the address of the user * @param asset The asset to incentivize * @return the user index for the asset */ function getUserAssetData(address user, address asset) external view returns (uint256); /** * @dev for backward compatibility with previous implementation of the Incentives controller */ function REWARD_TOKEN() external view returns (address); /** * @dev for backward compatibility with previous implementation of the Incentives controller */ function PRECISION() external view returns (uint8); /** * @dev Gets the distribution end timestamp of the emissions */ function DISTRIBUTION_END() external view returns (uint256); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import {IScaledBalanceToken} from "./IScaledBalanceToken.sol"; import {IInitializableAToken} from "./IInitializableAToken.sol"; import {IAaveIncentivesController} from "./IAaveIncentivesController.sol"; interface IAToken is IERC20, IScaledBalanceToken, IInitializableAToken { /** * @dev Emitted after the mint action * @param from The address performing the mint * @param value The amount being * @param index The new liquidity index of the reserve **/ event Mint(address indexed from, uint256 value, uint256 index); /** * @dev Mints `amount` aTokens to `user` * @param user The address receiving the minted tokens * @param amount The amount of tokens getting minted * @param index The new liquidity index of the reserve * @return `true` if the the previous balance of the user was 0 */ function mint(address user, uint256 amount, uint256 index) external returns (bool); /** * @dev Emitted after aTokens are burned * @param from The owner of the aTokens, getting them burned * @param target The address that will receive the underlying * @param value The amount being burned * @param index The new liquidity index of the reserve **/ event Burn(address indexed from, address indexed target, uint256 value, uint256 index); /** * @dev Emitted during the transfer action * @param from The user whose tokens are being transferred * @param to The recipient * @param value The amount being transferred * @param index The new liquidity index of the reserve **/ event BalanceTransfer(address indexed from, address indexed to, uint256 value, uint256 index); /** * @dev Burns aTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying` * @param user The owner of the aTokens, getting them burned * @param receiverOfUnderlying The address that will receive the underlying * @param amount The amount being burned * @param index The new liquidity index of the reserve **/ function burn(address user, address receiverOfUnderlying, uint256 amount, uint256 index) external; /** * @dev Mints aTokens to the reserve treasury * @param amount The amount of tokens getting minted * @param index The new liquidity index of the reserve */ function mintToTreasury(uint256 amount, uint256 index) external; /** * @dev Transfers aTokens in the event of a borrow being liquidated, in case the liquidators reclaims the aToken * @param from The address getting liquidated, current owner of the aTokens * @param to The recipient * @param value The amount of tokens getting transferred **/ function transferOnLiquidation(address from, address to, uint256 value) external; /** * @dev Transfers the underlying asset to `target`. Used by the LendingPool to transfer * assets in borrow(), withdraw() and flashLoan() * @param user The recipient of the underlying * @param amount The amount getting transferred * @return The amount transferred **/ function transferUnderlyingTo(address user, uint256 amount) external returns (uint256); /** * @dev Invoked to execute actions on the aToken side after a repayment. * @param user The user executing the repayment * @param amount The amount getting repaid **/ function handleRepayment(address user, uint256 amount) external; /** * @dev Returns the address of the incentives controller contract **/ function getIncentivesController() external view returns (IAaveIncentivesController); /** * @dev Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH) **/ function UNDERLYING_ASSET_ADDRESS() external view returns (address); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.12; pragma abicoder v2; import "./LockedBalance.sol"; interface IFeeDistribution { struct RewardData { address token; uint256 amount; } function addReward(address rewardsToken) external; function lockedBalances( address user ) external view returns (uint256, uint256, uint256, uint256, LockedBalance[] memory); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; import {ILendingPool} from "./ILendingPool.sol"; import {IAaveIncentivesController} from "./IAaveIncentivesController.sol"; /** * @title IInitializableAToken * @notice Interface for the initialize function on AToken * @author Aave **/ interface IInitializableAToken { /** * @dev Emitted when an aToken is initialized * @param underlyingAsset The address of the underlying asset * @param pool The address of the associated lending pool * @param treasury The address of the treasury * @param incentivesController The address of the incentives controller for this aToken * @param aTokenDecimals the decimals of the underlying * @param aTokenName the name of the aToken * @param aTokenSymbol the symbol of the aToken * @param params A set of encoded parameters for additional initialization **/ event Initialized( address indexed underlyingAsset, address indexed pool, address treasury, address incentivesController, uint8 aTokenDecimals, string aTokenName, string aTokenSymbol, bytes params ); /** * @dev Initializes the aToken * @param pool The address of the lending pool where this aToken will be used * @param treasury The address of the Aave treasury, receiving the fees on this aToken * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH) * @param incentivesController The smart contract managing potential incentives distribution * @param aTokenDecimals The decimals of the aToken, same as the underlying asset's * @param aTokenName The name of the aToken * @param aTokenSymbol The symbol of the aToken */ function initialize( ILendingPool pool, address treasury, address underlyingAsset, IAaveIncentivesController incentivesController, uint8 aTokenDecimals, string calldata aTokenName, string calldata aTokenSymbol, bytes calldata params ) external; }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; pragma experimental ABIEncoderV2; import {ILendingPoolAddressesProvider} from "./ILendingPoolAddressesProvider.sol"; import {DataTypes} from "../lending/libraries/types/DataTypes.sol"; interface ILendingPool { /** * @dev Emitted on deposit() * @param reserve The address of the underlying asset of the reserve * @param user The address initiating the deposit * @param onBehalfOf The beneficiary of the deposit, receiving the aTokens * @param amount The amount deposited * @param referral The referral code used **/ event Deposit( address indexed reserve, address user, address indexed onBehalfOf, uint256 amount, uint16 indexed referral ); /** * @dev Emitted on withdraw() * @param reserve The address of the underlyng asset being withdrawn * @param user The address initiating the withdrawal, owner of aTokens * @param to Address that will receive the underlying * @param amount The amount to be withdrawn **/ event Withdraw(address indexed reserve, address indexed user, address indexed to, uint256 amount); /** * @dev Emitted on borrow() and flashLoan() when debt needs to be opened * @param reserve The address of the underlying asset being borrowed * @param user The address of the user initiating the borrow(), receiving the funds on borrow() or just * initiator of the transaction on flashLoan() * @param onBehalfOf The address that will be getting the debt * @param amount The amount borrowed out * @param borrowRateMode The rate mode: 1 for Stable, 2 for Variable * @param borrowRate The numeric rate at which the user has borrowed * @param referral The referral code used **/ event Borrow( address indexed reserve, address user, address indexed onBehalfOf, uint256 amount, uint256 borrowRateMode, uint256 borrowRate, uint16 indexed referral ); /** * @dev Emitted on repay() * @param reserve The address of the underlying asset of the reserve * @param user The beneficiary of the repayment, getting his debt reduced * @param repayer The address of the user initiating the repay(), providing the funds * @param amount The amount repaid **/ event Repay(address indexed reserve, address indexed user, address indexed repayer, uint256 amount); /** * @dev Emitted on swapBorrowRateMode() * @param reserve The address of the underlying asset of the reserve * @param user The address of the user swapping his rate mode * @param rateMode The rate mode that the user wants to swap to **/ event Swap(address indexed reserve, address indexed user, uint256 rateMode); /** * @dev Emitted on setUserUseReserveAsCollateral() * @param reserve The address of the underlying asset of the reserve * @param user The address of the user enabling the usage as collateral **/ event ReserveUsedAsCollateralEnabled(address indexed reserve, address indexed user); /** * @dev Emitted on setUserUseReserveAsCollateral() * @param reserve The address of the underlying asset of the reserve * @param user The address of the user enabling the usage as collateral **/ event ReserveUsedAsCollateralDisabled(address indexed reserve, address indexed user); /** * @dev Emitted on rebalanceStableBorrowRate() * @param reserve The address of the underlying asset of the reserve * @param user The address of the user for which the rebalance has been executed **/ event RebalanceStableBorrowRate(address indexed reserve, address indexed user); /** * @dev Emitted on flashLoan() * @param target The address of the flash loan receiver contract * @param initiator The address initiating the flash loan * @param asset The address of the asset being flash borrowed * @param amount The amount flash borrowed * @param premium The fee flash borrowed * @param referralCode The referral code used **/ event FlashLoan( address indexed target, address indexed initiator, address indexed asset, uint256 amount, uint256 premium, uint16 referralCode ); /** * @dev Emitted when the pause is triggered. */ event Paused(); /** * @dev Emitted when the pause is lifted. */ event Unpaused(); /** * @dev Emitted when a borrower is liquidated. This event is emitted by the LendingPool via * LendingPoolCollateral manager using a DELEGATECALL * This allows to have the events in the generated ABI for LendingPool. * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation * @param user The address of the borrower getting liquidated * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover * @param liquidatedCollateralAmount The amount of collateral received by the liiquidator * @param liquidator The address of the liquidator * @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants * to receive the underlying collateral asset directly **/ event LiquidationCall( address indexed collateralAsset, address indexed debtAsset, address indexed user, uint256 debtToCover, uint256 liquidatedCollateralAmount, address liquidator, bool receiveAToken ); /** * @dev Emitted when the state of a reserve is updated. NOTE: This event is actually declared * in the ReserveLogic library and emitted in the updateInterestRates() function. Since the function is internal, * the event will actually be fired by the LendingPool contract. The event is therefore replicated here so it * gets added to the LendingPool ABI * @param reserve The address of the underlying asset of the reserve * @param liquidityRate The new liquidity rate * @param stableBorrowRate The new stable borrow rate * @param variableBorrowRate The new variable borrow rate * @param liquidityIndex The new liquidity index * @param variableBorrowIndex The new variable borrow index **/ event ReserveDataUpdated( address indexed reserve, uint256 liquidityRate, uint256 stableBorrowRate, uint256 variableBorrowRate, uint256 liquidityIndex, uint256 variableBorrowIndex ); /** * @dev Deposits an `amount` of underlying asset into the reserve, receiving in return overlying aTokens. * - E.g. User deposits 100 USDC and gets in return 100 aUSDC * @param asset The address of the underlying asset to deposit * @param amount The amount to be deposited * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user * wants to receive them on his own wallet, or a different address if the beneficiary of aTokens * is a different wallet * @param referralCode Code used to register the integrator originating the operation, for potential rewards. * 0 if the action is executed directly by the user, without any middle-man **/ function deposit(address asset, uint256 amount, address onBehalfOf, uint16 referralCode) external; function depositWithAutoDLP(address asset, uint256 amount, address onBehalfOf, uint16 referralCode) external; /** * @dev Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned * E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC * @param asset The address of the underlying asset to withdraw * @param amount The underlying amount to be withdrawn * - Send the value type(uint256).max in order to withdraw the whole aToken balance * @param to Address that will receive the underlying, same as msg.sender if the user * wants to receive it on his own wallet, or a different address if the beneficiary is a * different wallet * @return The final amount withdrawn **/ function withdraw(address asset, uint256 amount, address to) external returns (uint256); /** * @dev Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower * already deposited enough collateral, or he was given enough allowance by a credit delegator on the * corresponding debt token (StableDebtToken or VariableDebtToken) * - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet * and 100 stable/variable debt tokens, depending on the `interestRateMode` * @param asset The address of the underlying asset to borrow * @param amount The amount to be borrowed * @param interestRateMode The interest rate mode at which the user wants to borrow: 1 for Stable, 2 for Variable * @param referralCode Code used to register the integrator originating the operation, for potential rewards. * 0 if the action is executed directly by the user, without any middle-man * @param onBehalfOf Address of the user who will receive the debt. Should be the address of the borrower itself * calling the function if he wants to borrow against his own collateral, or the address of the credit delegator * if he has been given credit delegation allowance **/ function borrow( address asset, uint256 amount, uint256 interestRateMode, uint16 referralCode, address onBehalfOf ) external; /** * @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned * - E.g. User repays 100 USDC, burning 100 variable/stable debt tokens of the `onBehalfOf` address * @param asset The address of the borrowed underlying asset previously borrowed * @param amount The amount to repay * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode` * @param rateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable * @param onBehalfOf Address of the user who will get his debt reduced/removed. Should be the address of the * user calling the function if he wants to reduce/remove his own debt, or the address of any other * other borrower whose debt should be removed * @return The final amount repaid **/ function repay(address asset, uint256 amount, uint256 rateMode, address onBehalfOf) external returns (uint256); /** * @dev Allows a borrower to swap his debt between stable and variable mode, or viceversa * @param asset The address of the underlying asset borrowed * @param rateMode The rate mode that the user wants to swap to **/ function swapBorrowRateMode(address asset, uint256 rateMode) external; /** * @dev Rebalances the stable interest rate of a user to the current stable rate defined on the reserve. * - Users can be rebalanced if the following conditions are satisfied: * 1. Usage ratio is above 95% * 2. the current deposit APY is below REBALANCE_UP_THRESHOLD * maxVariableBorrowRate, which means that too much has been * borrowed at a stable rate and depositors are not earning enough * @param asset The address of the underlying asset borrowed * @param user The address of the user to be rebalanced **/ function rebalanceStableBorrowRate(address asset, address user) external; /** * @dev Allows depositors to enable/disable a specific deposited asset as collateral * @param asset The address of the underlying asset deposited * @param useAsCollateral `true` if the user wants to use the deposit as collateral, `false` otherwise **/ function setUserUseReserveAsCollateral(address asset, bool useAsCollateral) external; /** * @dev Function to liquidate a non-healthy position collateral-wise, with Health Factor below 1 * - The caller (liquidator) covers `debtToCover` amount of debt of the user getting liquidated, and receives * a proportionally amount of the `collateralAsset` plus a bonus to cover market risk * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation * @param user The address of the borrower getting liquidated * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover * @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants * to receive the underlying collateral asset directly **/ function liquidationCall( address collateralAsset, address debtAsset, address user, uint256 debtToCover, bool receiveAToken ) external; /** * @dev Allows smartcontracts to access the liquidity of the pool within one transaction, * as long as the amount taken plus a fee is returned. * IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept into consideration. * For further details please visit https://developers.aave.com * @param receiverAddress The address of the contract receiving the funds, implementing the IFlashLoanReceiver interface * @param assets The addresses of the assets being flash-borrowed * @param amounts The amounts amounts being flash-borrowed * @param modes Types of the debt to open if the flash loan is not returned: * 0 -> Don't open any debt, just revert if funds can't be transferred from the receiver * 1 -> Open debt at stable rate for the value of the amount flash-borrowed to the `onBehalfOf` address * 2 -> Open debt at variable rate for the value of the amount flash-borrowed to the `onBehalfOf` address * @param onBehalfOf The address that will receive the debt in the case of using on `modes` 1 or 2 * @param params Variadic packed params to pass to the receiver as extra information * @param referralCode Code used to register the integrator originating the operation, for potential rewards. * 0 if the action is executed directly by the user, without any middle-man **/ function flashLoan( address receiverAddress, address[] calldata assets, uint256[] calldata amounts, uint256[] calldata modes, address onBehalfOf, bytes calldata params, uint16 referralCode ) external; /** * @dev Returns the user account data across all the reserves * @param user The address of the user * @return totalCollateralETH the total collateral in ETH of the user * @return totalDebtETH the total debt in ETH of the user * @return availableBorrowsETH the borrowing power left of the user * @return currentLiquidationThreshold the liquidation threshold of the user * @return ltv the loan to value of the user * @return healthFactor the current health factor of the user **/ function getUserAccountData( address user ) external view returns ( uint256 totalCollateralETH, uint256 totalDebtETH, uint256 availableBorrowsETH, uint256 currentLiquidationThreshold, uint256 ltv, uint256 healthFactor ); function initReserve( address reserve, address aTokenAddress, address stableDebtAddress, address variableDebtAddress, address interestRateStrategyAddress ) external; function setReserveInterestRateStrategyAddress(address reserve, address rateStrategyAddress) external; function setConfiguration(address reserve, uint256 configuration) external; /** * @dev Returns the configuration of the reserve * @param asset The address of the underlying asset of the reserve * @return The configuration of the reserve **/ function getConfiguration(address asset) external view returns (DataTypes.ReserveConfigurationMap memory); /** * @dev Returns the configuration of the user across all the reserves * @param user The user address * @return The configuration of the user **/ function getUserConfiguration(address user) external view returns (DataTypes.UserConfigurationMap memory); /** * @dev Returns the normalized income normalized income of the reserve * @param asset The address of the underlying asset of the reserve * @return The reserve's normalized income */ function getReserveNormalizedIncome(address asset) external view returns (uint256); /** * @dev Returns the normalized variable debt per unit of asset * @param asset The address of the underlying asset of the reserve * @return The reserve normalized variable debt */ function getReserveNormalizedVariableDebt(address asset) external view returns (uint256); /** * @dev Returns the state and configuration of the reserve * @param asset The address of the underlying asset of the reserve * @return The state of the reserve **/ function getReserveData(address asset) external view returns (DataTypes.ReserveData memory); function finalizeTransfer( address asset, address from, address to, uint256 amount, uint256 balanceFromAfter, uint256 balanceToBefore ) external; function getReservesList() external view returns (address[] memory); function getAddressesProvider() external view returns (ILendingPoolAddressesProvider); function setPause(bool val) external; function paused() external view returns (bool); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; /** * @title LendingPoolAddressesProvider contract * @dev Main registry of addresses part of or connected to the protocol, including permissioned roles * - Acting also as factory of proxies and admin of those, so with right to change its implementations * - Owned by the Aave Governance * @author Aave **/ interface ILendingPoolAddressesProvider { event MarketIdSet(string newMarketId); event LendingPoolUpdated(address indexed newAddress); event ConfigurationAdminUpdated(address indexed newAddress); event EmergencyAdminUpdated(address indexed newAddress); event LendingPoolConfiguratorUpdated(address indexed newAddress); event LendingPoolCollateralManagerUpdated(address indexed newAddress); event PriceOracleUpdated(address indexed newAddress); event LendingRateOracleUpdated(address indexed newAddress); event ProxyCreated(bytes32 id, address indexed newAddress); event AddressSet(bytes32 id, address indexed newAddress, bool hasProxy); function getMarketId() external view returns (string memory); function setMarketId(string calldata marketId) external; function setAddress(bytes32 id, address newAddress) external; function setAddressAsProxy(bytes32 id, address impl) external; function getAddress(bytes32 id) external view returns (address); function getLendingPool() external view returns (address); function setLendingPoolImpl(address pool) external; function getLendingPoolConfigurator() external view returns (address); function setLendingPoolConfiguratorImpl(address configurator) external; function getLendingPoolCollateralManager() external view returns (address); function setLendingPoolCollateralManager(address manager) external; function getPoolAdmin() external view returns (address); function setPoolAdmin(address admin) external; function getEmergencyAdmin() external view returns (address); function setEmergencyAdmin(address admin) external; function getPriceOracle() external view returns (address); function setPriceOracle(address priceOracle) external; function getLendingRateOracle() external view returns (address); function setLendingRateOracle(address lendingRateOracle) external; function getLiquidationFeeTo() external view returns (address); function setLiquidationFeeTo(address liquidationFeeTo) external; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.12; pragma abicoder v2; import "./LockedBalance.sol"; import {IFeeDistribution} from "./IMultiFeeDistribution.sol"; interface IMiddleFeeDistribution is IFeeDistribution { function forwardReward(address[] memory _rewardTokens) external; function getRdntTokenAddress() external view returns (address); function getMultiFeeDistributionAddress() external view returns (address); function operationExpenseRatio() external view returns (uint256); function operationExpenses() external view returns (address); function isRewardToken(address) external view returns (bool); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; interface IMintableToken is IERC20 { function mint(address _receiver, uint256 _amount) external returns (bool); function burn(uint256 _amount) external returns (bool); function setMinter(address _minter) external returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.12; pragma abicoder v2; import "./LockedBalance.sol"; import "./IFeeDistribution.sol"; import "./IMintableToken.sol"; interface IMultiFeeDistribution is IFeeDistribution { function exit(bool claimRewards) external; function stake(uint256 amount, address onBehalfOf, uint256 typeIndex) external; function rdntToken() external view returns (IMintableToken); function getPriceProvider() external view returns (address); function lockInfo(address user) external view returns (LockedBalance[] memory); function autocompoundEnabled(address user) external view returns (bool); function defaultLockIndex(address _user) external view returns (uint256); function autoRelockDisabled(address user) external view returns (bool); function totalBalance(address user) external view returns (uint256); function zapVestingToLp(address _address) external returns (uint256); function withdrawExpiredLocksFor(address _address) external returns (uint256); function claimableRewards(address account) external view returns (IFeeDistribution.RewardData[] memory rewards); function setDefaultRelockTypeIndex(uint256 _index) external; function daoTreasury() external view returns (address); function stakingToken() external view returns (address); function claimFromConverter(address) external; function mint(address user, uint256 amount, bool withPenalty) external; } interface IMFDPlus is IMultiFeeDistribution { function getLastClaimTime(address _user) external returns (uint256); function claimBounty(address _user, bool _execute) external returns (bool issueBaseBounty); function claimCompound(address _user, bool _execute) external returns (uint256 bountyAmt); function setAutocompound(bool _newVal) external; function getAutocompoundEnabled(address _user) external view returns (bool); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; /************ @title IPriceOracle interface @notice Interface for the Aave price oracle.*/ interface IPriceOracle { /*********** @dev returns the asset price in ETH */ function getAssetPrice(address asset) external view returns (uint256); /*********** @dev sets the asset price, in wei */ function setAssetPrice(address asset, uint256 price) external; }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; interface IScaledBalanceToken { /** * @dev Returns the scaled balance of the user. The scaled balance is the sum of all the * updated stored balance divided by the reserve's liquidity index at the moment of the update * @param user The user whose balance is calculated * @return The scaled balance of the user **/ function scaledBalanceOf(address user) external view returns (uint256); /** * @dev Returns the scaled balance of the user and the scaled total supply. * @param user The address of the user * @return The scaled balance of the user * @return The scaled balance and the scaled total supply **/ function getScaledUserBalanceAndSupply(address user) external view returns (uint256, uint256); /** * @dev Returns the scaled total supply of the variable debt token. Represents sum(debt/index) * @return The scaled total supply **/ function scaledTotalSupply() external view returns (uint256); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.12; pragma abicoder v2; struct LockedBalance { uint256 amount; uint256 unlockTime; uint256 multiplier; uint256 duration; } struct EarnedBalance { uint256 amount; uint256 unlockTime; uint256 penalty; } struct Reward { uint256 periodFinish; uint256 rewardPerSecond; uint256 lastUpdateTime; uint256 rewardPerTokenStored; // tracks already-added balances to handle accrued interest in aToken rewards // for the stakingToken this value is unused and will always be 0 uint256 balance; } struct Balances { uint256 total; // sum of earnings and lockings; no use when LP and RDNT is different uint256 unlocked; // RDNT token uint256 locked; // LP token or RDNT token uint256 lockedWithMultiplier; // Multiplied locked amount uint256 earned; // RDNT token }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; /** * @title VersionedInitializable * * @dev Helper contract to implement initializer functions. To use it, replace * the constructor with a function that has the `initializer` modifier. * WARNING: Unlike constructors, initializer functions must be manually * invoked. This applies both to deploying an Initializable contract, as well * as extending an Initializable contract via inheritance. * WARNING: When used with inheritance, manual care must be taken to not invoke * a parent initializer twice, or ensure that all initializers are idempotent, * because this is not dealt with automatically as with constructors. * * @author Aave, inspired by the OpenZeppelin Initializable contract */ abstract contract VersionedInitializable { /** * @dev Indicates that the contract has been initialized. */ uint256 private lastInitializedRevision = 0; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private initializing; /** * @dev Modifier to use in the initializer function of a contract. */ modifier initializer() { uint256 revision = getRevision(); require( initializing || isConstructor() || revision > lastInitializedRevision, "Contract instance has already been initialized" ); bool isTopLevelCall = !initializing; if (isTopLevelCall) { initializing = true; lastInitializedRevision = revision; } _; if (isTopLevelCall) { initializing = false; } } /** * @dev returns the revision number of the contract * Needs to be defined in the inherited class as a constant. **/ function getRevision() internal pure virtual returns (uint256); /** * @dev Returns true if and only if the function is running in the constructor **/ function isConstructor() private view returns (bool) { // extcodesize checks the size of the code stored in an address, and // address returns the current address. Since the code is still not // deployed when running a constructor, any checks on its code size will // yield zero, making it an effective way to detect if a contract is // under construction or not. uint256 cs; //solium-disable-next-line assembly { cs := extcodesize(address()) } return cs == 0; } // Reserved storage space to allow for layout changes in the future. uint256[50] private ______gap; }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; /** * @title Errors library * @author Aave * @notice Defines the error messages emitted by the different contracts of the Aave protocol * @dev Error messages prefix glossary: * - VL = ValidationLogic * - MATH = Math libraries * - CT = Common errors between tokens (AToken, VariableDebtToken and StableDebtToken) * - AT = AToken * - SDT = StableDebtToken * - VDT = VariableDebtToken * - LP = LendingPool * - LPAPR = LendingPoolAddressesProviderRegistry * - LPC = LendingPoolConfiguration * - RL = ReserveLogic * - LPCM = LendingPoolCollateralManager * - P = Pausable */ library Errors { //common errors string public constant CALLER_NOT_POOL_ADMIN = "33"; // 'The caller must be the pool admin' string public constant BORROW_ALLOWANCE_NOT_ENOUGH = "59"; // User borrows on behalf, but allowance are too small //contract specific errors string public constant VL_INVALID_AMOUNT = "1"; // 'Amount must be greater than 0' string public constant VL_NO_ACTIVE_RESERVE = "2"; // 'Action requires an active reserve' string public constant VL_RESERVE_FROZEN = "3"; // 'Action cannot be performed because the reserve is frozen' string public constant VL_CURRENT_AVAILABLE_LIQUIDITY_NOT_ENOUGH = "4"; // 'The current liquidity is not enough' string public constant VL_NOT_ENOUGH_AVAILABLE_USER_BALANCE = "5"; // 'User cannot withdraw more than the available balance' string public constant VL_TRANSFER_NOT_ALLOWED = "6"; // 'Transfer cannot be allowed.' string public constant VL_BORROWING_NOT_ENABLED = "7"; // 'Borrowing is not enabled' string public constant VL_INVALID_INTEREST_RATE_MODE_SELECTED = "8"; // 'Invalid interest rate mode selected' string public constant VL_COLLATERAL_BALANCE_IS_0 = "9"; // 'The collateral balance is 0' string public constant VL_HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD = "10"; // 'Health factor is lesser than the liquidation threshold' string public constant VL_COLLATERAL_CANNOT_COVER_NEW_BORROW = "11"; // 'There is not enough collateral to cover a new borrow' string public constant VL_STABLE_BORROWING_NOT_ENABLED = "12"; // stable borrowing not enabled string public constant VL_COLLATERAL_SAME_AS_BORROWING_CURRENCY = "13"; // collateral is (mostly) the same currency that is being borrowed string public constant VL_AMOUNT_BIGGER_THAN_MAX_LOAN_SIZE_STABLE = "14"; // 'The requested amount is greater than the max loan size in stable rate mode string public constant VL_NO_DEBT_OF_SELECTED_TYPE = "15"; // 'for repayment of stable debt, the user needs to have stable debt, otherwise, he needs to have variable debt' string public constant VL_NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF = "16"; // 'To repay on behalf of an user an explicit amount to repay is needed' string public constant VL_NO_STABLE_RATE_LOAN_IN_RESERVE = "17"; // 'User does not have a stable rate loan in progress on this reserve' string public constant VL_NO_VARIABLE_RATE_LOAN_IN_RESERVE = "18"; // 'User does not have a variable rate loan in progress on this reserve' string public constant VL_UNDERLYING_BALANCE_NOT_GREATER_THAN_0 = "19"; // 'The underlying balance needs to be greater than 0' string public constant VL_DEPOSIT_ALREADY_IN_USE = "20"; // 'User deposit is already being used as collateral' string public constant LP_NOT_ENOUGH_STABLE_BORROW_BALANCE = "21"; // 'User does not have any stable rate loan for this reserve' string public constant LP_INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET = "22"; // 'Interest rate rebalance conditions were not met' string public constant LP_LIQUIDATION_CALL_FAILED = "23"; // 'Liquidation call failed' string public constant LP_NOT_ENOUGH_LIQUIDITY_TO_BORROW = "24"; // 'There is not enough liquidity available to borrow' string public constant LP_REQUESTED_AMOUNT_TOO_SMALL = "25"; // 'The requested amount is too small for a FlashLoan.' string public constant LP_INCONSISTENT_PROTOCOL_ACTUAL_BALANCE = "26"; // 'The actual balance of the protocol is inconsistent' string public constant LP_CALLER_NOT_LENDING_POOL_CONFIGURATOR = "27"; // 'The caller of the function is not the lending pool configurator' string public constant LP_INCONSISTENT_FLASHLOAN_PARAMS = "28"; string public constant CT_CALLER_MUST_BE_LENDING_POOL = "29"; // 'The caller of this function must be a lending pool' string public constant CT_CANNOT_GIVE_ALLOWANCE_TO_HIMSELF = "30"; // 'User cannot give allowance to himself' string public constant CT_TRANSFER_AMOUNT_NOT_GT_0 = "31"; // 'Transferred amount needs to be greater than zero' string public constant RL_RESERVE_ALREADY_INITIALIZED = "32"; // 'Reserve has already been initialized' string public constant LPC_RESERVE_LIQUIDITY_NOT_0 = "34"; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_ATOKEN_POOL_ADDRESS = "35"; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_STABLE_DEBT_TOKEN_POOL_ADDRESS = "36"; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_VARIABLE_DEBT_TOKEN_POOL_ADDRESS = "37"; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_STABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = "38"; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_VARIABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = "39"; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_ADDRESSES_PROVIDER_ID = "40"; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_CONFIGURATION = "75"; // 'Invalid risk parameters for the reserve' string public constant LPC_CALLER_NOT_EMERGENCY_ADMIN = "76"; // 'The caller must be the emergency admin' string public constant LPAPR_PROVIDER_NOT_REGISTERED = "41"; // 'Provider is not registered' string public constant LPCM_HEALTH_FACTOR_NOT_BELOW_THRESHOLD = "42"; // 'Health factor is not below the threshold' string public constant LPCM_COLLATERAL_CANNOT_BE_LIQUIDATED = "43"; // 'The collateral chosen cannot be liquidated' string public constant LPCM_SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER = "44"; // 'User did not borrow the specified currency' string public constant LPCM_NOT_ENOUGH_LIQUIDITY_TO_LIQUIDATE = "45"; // "There isn't enough liquidity available to liquidate" string public constant LPCM_NO_ERRORS = "46"; // 'No errors' string public constant LP_INVALID_FLASHLOAN_MODE = "47"; //Invalid flashloan mode selected string public constant MATH_MULTIPLICATION_OVERFLOW = "48"; string public constant MATH_ADDITION_OVERFLOW = "49"; string public constant MATH_DIVISION_BY_ZERO = "50"; string public constant RL_LIQUIDITY_INDEX_OVERFLOW = "51"; // Liquidity index overflows uint128 string public constant RL_VARIABLE_BORROW_INDEX_OVERFLOW = "52"; // Variable borrow index overflows uint128 string public constant RL_LIQUIDITY_RATE_OVERFLOW = "53"; // Liquidity rate overflows uint128 string public constant RL_VARIABLE_BORROW_RATE_OVERFLOW = "54"; // Variable borrow rate overflows uint128 string public constant RL_STABLE_BORROW_RATE_OVERFLOW = "55"; // Stable borrow rate overflows uint128 string public constant CT_INVALID_MINT_AMOUNT = "56"; //invalid amount to mint string public constant LP_FAILED_REPAY_WITH_COLLATERAL = "57"; string public constant CT_INVALID_BURN_AMOUNT = "58"; //invalid amount to burn string public constant LP_FAILED_COLLATERAL_SWAP = "60"; string public constant LP_INVALID_EQUAL_ASSETS_TO_SWAP = "61"; string public constant LP_REENTRANCY_NOT_ALLOWED = "62"; string public constant LP_CALLER_MUST_BE_AN_ATOKEN = "63"; string public constant LP_IS_PAUSED = "64"; // 'Pool is paused' string public constant LP_NO_MORE_RESERVES_ALLOWED = "65"; string public constant LP_INVALID_FLASH_LOAN_EXECUTOR_RETURN = "66"; string public constant RC_INVALID_LTV = "67"; string public constant RC_INVALID_LIQ_THRESHOLD = "68"; string public constant RC_INVALID_LIQ_BONUS = "69"; string public constant RC_INVALID_DECIMALS = "70"; string public constant RC_INVALID_RESERVE_FACTOR = "71"; string public constant LPAPR_INVALID_ADDRESSES_PROVIDER_ID = "72"; string public constant VL_INCONSISTENT_FLASHLOAN_PARAMS = "73"; string public constant LP_INCONSISTENT_PARAMS_LENGTH = "74"; string public constant UL_INVALID_INDEX = "77"; string public constant LP_NOT_CONTRACT = "78"; string public constant SDT_STABLE_DEBT_OVERFLOW = "79"; string public constant SDT_BURN_EXCEEDS_BALANCE = "80"; enum CollateralManagerErrors { NO_ERROR, NO_COLLATERAL_AVAILABLE, COLLATERAL_CANNOT_BE_LIQUIDATED, CURRRENCY_NOT_BORROWED, HEALTH_FACTOR_ABOVE_THRESHOLD, NOT_ENOUGH_LIQUIDITY, NO_ACTIVE_RESERVE, HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD, INVALID_EQUAL_ASSETS_TO_SWAP, FROZEN_RESERVE } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; import {Errors} from "../helpers/Errors.sol"; /** * @title WadRayMath library * @author Aave * @dev Provides mul and div function for wads (decimal numbers with 18 digits precision) and rays (decimals with 27 digits) **/ library WadRayMath { uint256 internal constant WAD = 1e18; uint256 internal constant halfWAD = WAD / 2; uint256 internal constant RAY = 1e27; uint256 internal constant halfRAY = RAY / 2; uint256 internal constant WAD_RAY_RATIO = 1e9; /** * @return One ray, 1e27 **/ function ray() internal pure returns (uint256) { return RAY; } /** * @return One wad, 1e18 **/ function wad() internal pure returns (uint256) { return WAD; } /** * @return Half ray, 1e27/2 **/ function halfRay() internal pure returns (uint256) { return halfRAY; } /** * @return Half ray, 1e18/2 **/ function halfWad() internal pure returns (uint256) { return halfWAD; } /** * @dev Multiplies two wad, rounding half up to the nearest wad * @param a Wad * @param b Wad * @return The result of a*b, in wad **/ function wadMul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0 || b == 0) { return 0; } require(a <= (type(uint256).max - halfWAD) / b, Errors.MATH_MULTIPLICATION_OVERFLOW); return (a * b + halfWAD) / WAD; } /** * @dev Divides two wad, rounding half up to the nearest wad * @param a Wad * @param b Wad * @return The result of a/b, in wad **/ function wadDiv(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, Errors.MATH_DIVISION_BY_ZERO); uint256 halfB = b / 2; require(a <= (type(uint256).max - halfB) / WAD, Errors.MATH_MULTIPLICATION_OVERFLOW); return (a * WAD + halfB) / b; } /** * @dev Multiplies two ray, rounding half up to the nearest ray * @param a Ray * @param b Ray * @return The result of a*b, in ray **/ function rayMul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0 || b == 0) { return 0; } require(a <= (type(uint256).max - halfRAY) / b, Errors.MATH_MULTIPLICATION_OVERFLOW); return (a * b + halfRAY) / RAY; } /** * @dev Divides two ray, rounding half up to the nearest ray * @param a Ray * @param b Ray * @return The result of a/b, in ray **/ function rayDiv(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, Errors.MATH_DIVISION_BY_ZERO); uint256 halfB = b / 2; require(a <= (type(uint256).max - halfB) / RAY, Errors.MATH_MULTIPLICATION_OVERFLOW); return (a * RAY + halfB) / b; } /** * @dev Casts ray down to wad * @param a Ray * @return a casted to wad, rounded half up to the nearest wad **/ function rayToWad(uint256 a) internal pure returns (uint256) { uint256 halfRatio = WAD_RAY_RATIO / 2; uint256 result = halfRatio + a; require(result >= halfRatio, Errors.MATH_ADDITION_OVERFLOW); return result / WAD_RAY_RATIO; } /** * @dev Converts wad up to ray * @param a Wad * @return a converted in ray **/ function wadToRay(uint256 a) internal pure returns (uint256) { uint256 result = a * WAD_RAY_RATIO; require(result / WAD_RAY_RATIO == a, Errors.MATH_MULTIPLICATION_OVERFLOW); return result; } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; library DataTypes { // refer to the whitepaper, section 1.1 basic concepts for a formal description of these properties. struct ReserveData { //stores the reserve configuration ReserveConfigurationMap configuration; //the liquidity index. Expressed in ray uint128 liquidityIndex; //variable borrow index. Expressed in ray uint128 variableBorrowIndex; //the current supply rate. Expressed in ray uint128 currentLiquidityRate; //the current variable borrow rate. Expressed in ray uint128 currentVariableBorrowRate; //the current stable borrow rate. Expressed in ray uint128 currentStableBorrowRate; uint40 lastUpdateTimestamp; //tokens addresses address aTokenAddress; address stableDebtTokenAddress; address variableDebtTokenAddress; //address of the interest rate strategy address interestRateStrategyAddress; //the id of the reserve. Represents the position in the list of the active reserves uint8 id; } struct ReserveConfigurationMap { //bit 0-15: LTV //bit 16-31: Liq. threshold //bit 32-47: Liq. bonus //bit 48-55: Decimals //bit 56: Reserve is active //bit 57: reserve is frozen //bit 58: borrowing is enabled //bit 59: stable rate borrowing enabled //bit 60-63: reserved //bit 64-79: reserve factor uint256 data; } struct UserConfigurationMap { uint256 data; } enum InterestRateMode { NONE, STABLE, VARIABLE } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.12; import {Context} from "../../dependencies/openzeppelin/contracts/Context.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol"; import "@openzeppelin/contracts/utils/math/SafeMath.sol"; import {IAaveIncentivesController} from "../../interfaces/IAaveIncentivesController.sol"; import {ILendingPoolAddressesProvider} from "../../interfaces/ILendingPoolAddressesProvider.sol"; import {IPriceOracle} from "../../interfaces/IPriceOracle.sol"; import {ILendingPool} from "../../interfaces/ILendingPool.sol"; /** * @title ERC20 * @notice Basic ERC20 implementation * @author Aave, inspired by the Openzeppelin ERC20 implementation **/ abstract contract IncentivizedERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; mapping(address => uint256) internal _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 internal _totalSupply; string private _name; string private _symbol; uint8 private _decimals; ILendingPool internal _pool; address internal _underlyingAsset; constructor(string memory name_, string memory symbol_, uint8 decimals_) { _name = name_; _symbol = symbol_; _decimals = decimals_; } /** * @return The name of the token **/ function name() public view override returns (string memory) { return _name; } /** * @return The symbol of the token **/ function symbol() public view override returns (string memory) { return _symbol; } /** * @return The decimals of the token **/ function decimals() public view override returns (uint8) { return _decimals; } /** * @return The total supply of the token **/ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @return The balance of the token **/ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @return Abstract function implemented by the child aToken/debtToken. * Done this way in order to not break compatibility with previous versions of aTokens/debtTokens **/ function _getIncentivesController() internal view virtual returns (IAaveIncentivesController); /** * @dev Executes a transfer of tokens from _msgSender() to recipient * @param recipient The recipient of the tokens * @param amount The amount of tokens being transferred * @return `true` if the transfer succeeds, `false` otherwise **/ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); emit Transfer(_msgSender(), recipient, amount); return true; } /** * @dev Returns the allowance of spender on the tokens owned by owner * @param owner The owner of the tokens * @param spender The user allowed to spend the owner's tokens * @return The amount of owner's tokens spender is allowed to spend **/ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev Allows `spender` to spend the tokens owned by _msgSender() * @param spender The user allowed to spend _msgSender() tokens * @return `true` **/ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev Executes a transfer of token from sender to recipient, if _msgSender() is allowed to do so * @param sender The owner of the tokens * @param recipient The recipient of the tokens * @param amount The amount of tokens being transferred * @return `true` if the transfer succeeds, `false` otherwise **/ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve( sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance") ); emit Transfer(sender, recipient, amount); return true; } /** * @dev Increases the allowance of spender to spend _msgSender() tokens * @param spender The user allowed to spend on behalf of _msgSender() * @param addedValue The amount being added to the allowance * @return `true` **/ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /** * @dev Decreases the allowance of spender to spend _msgSender() tokens * @param spender The user allowed to spend on behalf of _msgSender() * @param subtractedValue The amount being subtracted to the allowance * @return `true` **/ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve( _msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero") ); return true; } function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); if (address(_getIncentivesController()) != address(0)) { // uint256 currentTotalSupply = _totalSupply; _getIncentivesController().handleActionBefore(sender); if (sender != recipient) { _getIncentivesController().handleActionBefore(recipient); } } _balances[sender] = senderBalance; uint256 recipientBalance = _balances[recipient].add(amount); _balances[recipient] = recipientBalance; if (address(_getIncentivesController()) != address(0)) { uint256 currentTotalSupply = _totalSupply; _getIncentivesController().handleActionAfter(sender, _balances[sender], currentTotalSupply); if (sender != recipient) { _getIncentivesController().handleActionAfter(recipient, _balances[recipient], currentTotalSupply); } } } function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); uint256 currentTotalSupply = _totalSupply.add(amount); uint256 accountBalance = _balances[account].add(amount); if (address(_getIncentivesController()) != address(0)) { _getIncentivesController().handleActionBefore(account); } _totalSupply = currentTotalSupply; _balances[account] = accountBalance; if (address(_getIncentivesController()) != address(0)) { _getIncentivesController().handleActionAfter(account, accountBalance, currentTotalSupply); } } function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 currentTotalSupply = _totalSupply.sub(amount); uint256 accountBalance = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); if (address(_getIncentivesController()) != address(0)) { _getIncentivesController().handleActionBefore(account); } _totalSupply = currentTotalSupply; _balances[account] = accountBalance; if (address(_getIncentivesController()) != address(0)) { _getIncentivesController().handleActionAfter(account, accountBalance, currentTotalSupply); } } function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _setName(string memory newName) internal { _name = newName; } function _setSymbol(string memory newSymbol) internal { _symbol = newSymbol; } function _setDecimals(uint8 newDecimals) internal { _decimals = newDecimals; } function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {} function getAssetPrice() external view returns (uint256) { ILendingPoolAddressesProvider provider = _pool.getAddressesProvider(); address oracle = provider.getPriceOracle(); return IPriceOracle(oracle).getAssetPrice(_underlyingAsset); } }
{ "optimizer": { "enabled": true, "runs": 1000, "details": { "yul": true } }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "metadata": { "useLiteralContent": true }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"}],"name":"BalanceTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"target","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"underlyingAsset","type":"address"},{"indexed":true,"internalType":"address","name":"pool","type":"address"},{"indexed":false,"internalType":"address","name":"treasury","type":"address"},{"indexed":false,"internalType":"address","name":"incentivesController","type":"address"},{"indexed":false,"internalType":"uint8","name":"aTokenDecimals","type":"uint8"},{"indexed":false,"internalType":"string","name":"aTokenName","type":"string"},{"indexed":false,"internalType":"string","name":"aTokenSymbol","type":"string"},{"indexed":false,"internalType":"bytes","name":"params","type":"bytes"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"ATOKEN_REVISION","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"EIP712_REVISION","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"POOL","outputs":[{"internalType":"contract ILendingPool","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"RESERVE_TREASURY_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"UNDERLYING_ASSET_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"_nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"address","name":"receiverOfUnderlying","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getAssetPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getIncentivesController","outputs":[{"internalType":"contract IAaveIncentivesController","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getScaledUserBalanceAndSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"handleRepayment","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract ILendingPool","name":"pool","type":"address"},{"internalType":"address","name":"treasury","type":"address"},{"internalType":"address","name":"underlyingAsset","type":"address"},{"internalType":"contract IAaveIncentivesController","name":"incentivesController","type":"address"},{"internalType":"uint8","name":"aTokenDecimals","type":"uint8"},{"internalType":"string","name":"aTokenName","type":"string"},{"internalType":"string","name":"aTokenSymbol","type":"string"},{"internalType":"bytes","name":"params","type":"bytes"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"mintToTreasury","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"scaledBalanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"scaledTotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferOnLiquidation","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferUnderlyingTo","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Multichain Portfolio | 34 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.