WethMaker

The WethMaker contract inherits functionality from the Unwindooor contract, and also implements functions to swap to weth from other tokens utilizing set bridges for each token. There is also a withdraw function to withdraw the collected WETH, and other tokens from the contract.

The full contract can be found here.

State-Changing Functions

setBridge

function setBridge(
  address token,
  address bridge
) external onlyOwner;

Sets the bridge for a given token. Only the owner can call this function.

Parameters

Name	Type	Description
token	address	The token for which to set a bridge
bridge	address	The address of the bridge to set

Reverts

This function reverts if called by any account other than the owner.

Events

event SetBridge(address indexed token, address indexed bridge);

This event is emitted with the addresses of the token and the bridge when a bridge is set.

Modifiers

modifier onlyOwner();

This function can only be called by the owner of the contract.

buyWeth

function buyWeth(
  address[] calldata tokens,
  uint256[] calldata amountsIn,
  uint256[] calldata minimumOuts
) external onlyTrusted;

Buys Wrapped Ether (WETH) or bridge tokens, which can be converted into WETH in subsequent transactions. Only trusted entities can call this function.

Parameters

Name	Type	Description
tokens	address array	Array of token addresses to be swapped for WETH or bridge tokens.
amountsIn	uint256 array	Array of amounts of each token to swap. The length of this array should match the length of the tokens array.
minimumOuts	uint256 array	Array of minimum amounts of WETH or bridge tokens that must be received for the transaction not to revert.

Reverts

This function reverts if the actual output is less than the minimumOuts provided for slippage protection, or if called by any account other than trusted ones.

Modifiers

modifier onlyTrusted();

This function can only be called by trusted entities.

withdraw

function withdraw(
  address token,
  address to,
  uint256 _value
) external onlyOwner;

Allows the contract owner to withdraw funds and potentially bridge them to mainnet. This function can handle both ERC20 tokens and native Ether (ETH).

• If token is not the zero address, it transfers the _value of the token ERC20 tokens to the to address.
• If token is the zero address, it transfers _value ETH to the to address.

Parameters

Name	Type	Description
token	address	The address of the token to withdraw.
to	address	The address to receive the withdrawn tokens or ETH.
_value	uint256	The amount of tokens or ETH to withdraw.

Reverts

This function reverts if:

• The contract does not have sufficient balance of the token to transfer.
• The ETH transfer fails.
• It is called by any account other than the owner.

Modifiers

modifier onlyOwner();

This function can only be called by the owner of the contract.

doAction

function doAction(
  address to,
  uint256 _value,
  bytes memory data
) external onlyOwner;

Performs an arbitrary action by calling a function on an external contract. This can be used to interact with other contracts from the contract itself, such as calling other functions, executing transactions, or even deploying other contracts.

• The to parameter specifies the address of the external contract to be called.
• The _value parameter specifies the amount of ETH to send along with the call.
• The data parameter specifies the function selector and encoded arguments for the function to be called in the external contract.

This function can only be called by the owner of the contract.

Parameters

Name	Type	Description
to	address	The address of the external contract to be called.
_value	uint256	The amount of ETH to send along with the call.
data	bytes	The function selector and encoded arguments for the function to be called.

Reverts

This function reverts if:

• The external call fails.
• It is called by any account other than the owner.

Modifiers

modifier onlyOwner();

This function can only be called by the owner of the contract.