FluidWalletImplementation

Git Source

Inherits:FluidWalletVariables, FluidWalletErrorsAndEvents

State Variables

REVERT_REASON_MAX_LENGTH

uint256 internal constant REVERT_REASON_MAX_LENGTH = 250;

Functions

constructor

constructor(address vaultFactory_, address fluidWalletFactory_);

onERC721Received

ERC721 callback used Fluid Vault Factory and executes actions encoded in data_ Caller should be Fluid Wallet Factory.

function onERC721Received(address operator_, address from_, uint256 tokenId_, bytes calldata data_)
    external
    returns (bytes4);

Parameters

Name	Type	Description
operator_	address	operator_ caller to transfer the the given token ID
from_	address	from_ previous owner of the given token ID
tokenId_	uint256	tokenId_ id of the ERC721
data_	bytes	data bytes containing the abi.encoded() actions that are executed like in Action[] & owner

cast

function cast(Action[] memory actions_) public payable;

executeOperation

| | FLASHLOAN CALLBACK | |__________________________________

callback used by Instadapp Flashloan Aggregator, executes operations while owning the flashloaned amounts. data_ must contain actions, one of them must pay back flashloan

function executeOperation(
    address[] calldata,
    uint256[] calldata,
    uint256[] calldata,
    address initiator_,
    bytes calldata data_
) external returns (bool);

Parameters

Name	Type	Description
<none>	address[]
<none>	uint256[]
<none>	uint256[]
initiator_	address	flashloan initiator -> must be this contract
data_	bytes	data bytes containing the abi.encoded() actions that are executed like in CastParams.actions

_calculateStorageSlotUintMapping

| | INTERNAL HELPERS | |__________________________________

Calculating the slot ID for Liquidity contract for single mapping

function _calculateStorageSlotUintMapping(uint256 slot_, uint256 key_) internal pure returns (bytes32);

_sweepTokens

function _sweepTokens(address owner_, uint256 tokenId_) internal;

_getVaultConstants

function _getVaultConstants(address vault_) internal view returns (VaultConstants memory constants_);

_flushTokens

function _flushTokens(address token_, address owner_) internal;

_validateOwner

validate owner by recomputing fluid address.

function _validateOwner(address owner_) internal view;

_executeActions

executes actions_ with respective target, calldata, operation etc.

function _executeActions(Action[] memory actions_) internal;

_handleActionFailure

handles failure of an action execution depending on error cause, decoding and reverting with result_ as reason string.

function _handleActionFailure(uint256 i_, bytes memory result_) internal pure;

_getRevertReasonFromReturnedData

Get the revert reason from the returnedData (supports Panic, Error & Custom Errors). Based on https://github.com/superfluid-finance/protocol-monorepo/blob/dev/packages/ethereum-contracts/contracts/libs/CallUtils.sol This is needed in order to provide some human-readable revert message from a call.

function _getRevertReasonFromReturnedData(bytes memory returnedData_) internal pure returns (string memory reason_);

Parameters

Name	Type	Description
returnedData_	bytes	revert data of the call

Returns

Name	Type	Description
reason_	string	revert reason

_toHexDigit

used to convert bytes4 selector to string

function _toHexDigit(uint8 d) internal pure returns (bytes1);

Structs

VaultConstants

struct VaultConstants {
    address supplyToken0;
    address supplyToken1;
    address borrowToken0;
    address borrowToken1;
}