Upgradable contracts cannot receive ether via transfer because of increased SLOAD gas cost. We use this non-upgradeable contract as the recipient and then immediately transfer to an upgradable contract. More details about this issue can be found here.

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Variables

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weth

contract IWETH public weth;
Wrapped native token contract

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Functions

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constructor

function constructor(
    contract IWETH _weth
) public

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withdraw

function withdraw(
    address receiver,
    uint256 wad
) external
Transfer assets to a receiver.

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Parameters:

NameTypeDescription
receiveraddressThis address will receive a transfer
waduint256Amount in wei

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_safeTransferETH

function _safeTransferETH(
    address _to,
    uint256 _value
) internal

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receive

function receive() external

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version

function version() external returns (uint256)
Get this contract’s version

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Events

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Withdrawal

event Withdrawal(
    address receiver,
    uint256 wad
)
Emitted when any amount is withdrawn.