IStateFingerpringComputer.sol defines interface each State Fingerprint Computer contract has to implement. State Fingerprint Computers allow usage of dynamic assets in the PWN Protocol that don't implement ERC-5646 natively.
2. Important links
3. Implementation
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity 0.8.16;
/**
* @title IStateFingerpringComputer
* @notice State Fingerprint Computer Interface.
* @dev Contract can compute state fingerprint of several tokens as long as they share the same state structure.
*/
interface IStateFingerpringComputer {
/**
* @notice Compute current token state fingerprint for a given token.
* @param token Address of a token contract.
* @param tokenId Token id to compute state fingerprint for.
* @return Current token state fingerprint.
*/
function computeStateFingerprint(address token, uint256 tokenId) external view returns (bytes32);
/**
* @notice Check if the computer supports a given token address.
* @param token Address of a token contract.
* @return True if the computer supports the token address, false otherwise.
*/
function supportsToken(address token) external view returns (bool);
}
