Files
openzeppelin-contracts/contracts/token/ERC721/utils/ERC721Holder.sol
Francisco abba0d047a Update remappings.txt for upgradeable contracts and set up submodule (#4639)
Co-authored-by: Hadrien Croubois <hadrien.croubois@gmail.com>
Co-authored-by: Ernesto García <ernestognw@gmail.com>
2023-10-02 15:41:18 -03:00

25 lines
795 B
Solidity

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/utils/ERC721Holder.sol)
pragma solidity ^0.8.20;
import {IERC721Receiver} from "../IERC721Receiver.sol";
/**
* @dev Implementation of the {IERC721Receiver} interface.
*
* Accepts all token transfers.
* Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or
* {IERC721-setApprovalForAll}.
*/
abstract contract ERC721Holder is IERC721Receiver {
/**
* @dev See {IERC721Receiver-onERC721Received}.
*
* Always returns `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(address, address, uint256, bytes memory) public virtual returns (bytes4) {
return this.onERC721Received.selector;
}
}