Skip to main content

ULXMirrorWorld (xULX)

The ULXMirrorWorld contract is used for wrapping/unwrapping your ULX from/to xULX. The xULX token is then used in governance, and to take part in the distribution of fees that come from the protocol.

The full contract can be found here.

State-Changing Functions​

enter​

function enter(uint256 _amount) public;

Allows a user to deposit ULX tokens into the contract in exchange for xULX tokens.

  • msg.sender should have already given the contract an allowance of at least _amount of ULX tokens.
  • The number of xULX tokens minted depends on the current ULX to xULX ratio, which can change over time.

Parameters​

NameTypeDescription
_amountuint256number of ULX tokens to deposit

Returns​

This function doesn't return any values.

Reverts​

This function reverts if the transfer of ULX tokens from msg.sender to the contract fails.

Modifiers​

This function doesn't use any modifiers.

Functions called​

This function calls the _mint function of the ERC20 standard and the transferFrom function of the ULX token contract.

leave​

function leave(uint256 _share) public;

Allows a user to burn xULX tokens in exchange for ULX tokens.

  • The number of ULX tokens returned depends on the current ULX to xULX ratio, which can change over time.

Parameters​

NameTypeDescription
_shareuint256number of xULX tokens to burn

Returns​

This function doesn't return any values.

Reverts​

This function reverts if the burn of xULX tokens from msg.sender or the transfer of ULX tokens to msg.sender fails.

Modifiers​

This function doesn't use any modifiers.

Functions called​

This function calls the _burn function of the ERC20 standard and the transfer function of the ULX token contract.