DCIPs/assets/eip-3525/contracts/interface/IERC3525Receiver.sol

26 lines
1.4 KiB
Solidity
Raw Normal View History

// SPDX-License-Identifier: CC0-1.0
pragma solidity ^0.8.0;
/**
* @title ERC3525 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers from ERC3525 contracts.
* Note: the ERC-165 identifier for this interface is 0x009ce20b.
*/
interface IERC3525Receiver {
/**
* @notice Handle the receipt of an ERC3525 token value.
* @dev An ERC3525 smart contract MUST call this function on the recipient contract after a
* value transfer (i.e. `safeTransferFrom(uint256,uint256,uint256,bytes)`).
* MUST return 0x009ce20b (i.e. `bytes4(keccak256('onERC3525Received(address,uint256,uint256,
* uint256,bytes)'))`) if the transfer is accepted.
* MUST revert or return any value other than 0x009ce20b if the transfer is rejected.
* @param _operator The address which triggered the transfer
* @param _fromTokenId The token id to transfer value from
* @param _toTokenId The token id to transfer value to
* @param _value The transferred value
* @param _data Additional data with no specified format
* @return `bytes4(keccak256('onERC3525Received(address,uint256,uint256,uint256,bytes)'))`
* unless the transfer is rejected.
*/
function onERC3525Received(address _operator, uint256 _fromTokenId, uint256 _toTokenId, uint256 _value, bytes calldata _data) external returns (bytes4);
}