Pool Adapter

1. Summary

IPoolAdapter.sol defines interface each PoolAdapter contract has to implement. Pool adapters allows usage of funds locked in a pool such as Aave.

2. Important links

pwn_contracts/src/interfaces/IPoolAdapter.sol at master · PWNFinance/pwn_contractsGitHub

3. Implementation

// SPDX-License-Identifier: GPL-3.0-only
pragma solidity 0.8.16;

/**
 * @title IPoolAdapter
 * @notice Interface for pool adapters used to withdraw and supply assets to the pool.
 */
interface IPoolAdapter {

    /**
     * @notice Withdraw an asset from the pool on behalf of the owner.
     * @dev Withdrawn asset remains in the owner. Caller must have the ACTIVE_LOAN tag in the hub.
     * @param pool The address of the pool from which the asset is withdrawn.
     * @param owner The address of the owner from whom the asset is withdrawn.
     * @param asset The address of the asset to withdraw.
     * @param amount The amount of the asset to withdraw.
     */
    function withdraw(address pool, address owner, address asset, uint256 amount) external;

    /**
     * @notice Supply an asset to the pool on behalf of the owner.
     * @dev Need to transfer the asset to the adapter before calling this function.
     * @param pool The address of the pool to which the asset is supplied.
     * @param owner The address of the owner on whose behalf the asset is supplied.
     * @param asset The address of the asset to supply.
     * @param amount The amount of the asset to supply.
     */
    function supply(address pool, address owner, address asset, uint256 amount) external;

}