WETHGateway

WETH

contract IWETH WETH

weth

address weth

pool

address pool

constructor

constructor(address _weth, address _pool) public

Sets the WETH address and the PoolAddressesProvider address. Infinite approves pool.

Parameters

Name	Type	Description
_weth	address	Address of the Wrapped Ether contract
_pool	address	Address of the proxy pool of this contract

initialize

function initialize() external

depositETH

function depositETH(address onBehalfOf, uint16 referralCode) external payable

deposits WETH into the reserve, using native ETH. A corresponding amount of the overlying asset (xTokens) is minted.

Parameters

Name	Type	Description
onBehalfOf	address	address of the user who will receive the xTokens representing the deposit
referralCode	uint16	integrators are assigned a referral code and can potentially receive rewards.

withdrawETH

function withdrawETH(uint256 amount, address to) external

_withdraws the WETH reserves of msg.sender.

Parameters

Name	Type	Description
amount	uint256	amount of pWETH to withdraw and receive native ETH
to	address	address of the user who will receive native ETH

repayETH

function repayETH(uint256 amount, address onBehalfOf) external payable

repays a borrow on the WETH reserve, for the specified amount (or for the whole amount, if uint256(-1) is specified).

Parameters

Name	Type	Description
amount	uint256	the amount to repay, or uint256(-1) if the user wants to repay everything
onBehalfOf	address	the address for which msg.sender is repaying

borrowETH

function borrowETH(uint256 amount, uint16 referralCode) external

borrow WETH, unwraps to ETH and send both the ETH and DebtTokens to msg.sender, via approveDelegation and onBehalf argument in Pool.borrow.

Parameters

Name	Type	Description
amount	uint256	the amount of ETH to borrow
referralCode	uint16	integrators are assigned a referral code and can potentially receive rewards

withdrawETHWithPermit

function withdrawETHWithPermit(uint256 amount, address to, uint256 deadline, uint8 permitV, bytes32 permitR, bytes32 permitS) external

_withdraws the WETH reserves of msg.sender.

Parameters

Name	Type	Description
amount	uint256	amount of pWETH to withdraw and receive native ETH
to	address	address of the user who will receive native ETH
deadline	uint256	validity deadline of permit and so depositWithPermit signature
permitV	uint8	V parameter of ERC712 permit sig
permitR	bytes32	R parameter of ERC712 permit sig
permitS	bytes32	S parameter of ERC712 permit sig

_safeTransferETH

function _safeTransferETH(address to, uint256 value) internal

transfer ETH to an address, revert if it fails.

Parameters

Name	Type	Description
to	address	recipient of the transfer
value	uint256	the amount to send

emergencyTokenTransfer

function emergencyTokenTransfer(address token, address to, uint256 amount) external

transfer ERC20 from the utility contract, for ERC20 recovery in case of stuck tokens due direct transfers to the contract address.

Parameters

Name	Type	Description
token	address	token to transfer
to	address	recipient of the transfer
amount	uint256	amount to send

emergencyEtherTransfer

function emergencyEtherTransfer(address to, uint256 amount) external

transfer native Ether from the utility contract, for native Ether recovery in case of stuck Ether due selfdestructs or transfer ether to pre-computated contract address before deployment.

Parameters

Name	Type	Description
to	address	recipient of the transfer
amount	uint256	amount to send

getWETHAddress

function getWETHAddress() external view returns (address)

Get WETH address used by WETHGateway

receive

receive() external payable

Only WETH contract is allowed to transfer ETH here. Prevent other addresses to send Ether to this contract.

fallback

fallback() external payable

Revert fallback calls