optimism-bridge-snt/contracts/token/TokenController.sol
Ricardo Guilherme Schmidt aaba029cb8
add bridge code
2023-07-17 13:59:00 -03:00

35 lines
1.3 KiB
Solidity

// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.18;
/**
* @dev The token controller contract must implement these functions
*/
interface TokenController {
/**
* @notice Called when `_owner` sends ether to the MiniMe Token contract
* @param _owner The address that sent the ether to create tokens
* @return True if the ether is accepted, false if it throws
*/
function proxyPayment(address _owner) external payable returns(bool);
/**
* @notice Notifies the controller about a token transfer allowing the
* controller to react if desired
* @param _from The origin of the transfer
* @param _to The destination of the transfer
* @param _amount The amount of the transfer
* @return False if the controller does not authorize the transfer
*/
function onTransfer(address _from, address _to, uint _amount) external returns(bool);
/**
* @notice Notifies the controller about an approval allowing the
* controller to react if desired
* @param _owner The address that calls `approve()`
* @param _spender The spender in the `approve()` call
* @param _amount The amount in the `approve()` call
* @return False if the controller does not authorize the approval
*/
function onApprove(address _owner, address _spender, uint _amount) external
returns(bool);
}