26 lines
689 B
Solidity
26 lines
689 B
Solidity
|
// SPDX-License-Identifier: MIT
|
||
|
|
|
||
|
|
pragma solidity ^0.6.0;
|
||
|
|
|
||
|
|
import "../../GSN/Context.sol";
|
||
|
|
import "./ERC721.sol";
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @title ERC721 Burnable Token
|
||
|
|
* @dev ERC721 Token that can be irreversibly burned (destroyed).
|
||
|
|
*/
|
||
|
|
abstract contract ERC721Burnable is Context, ERC721 {
|
||
|
|
/**
|
||
|
|
* @dev Burns `tokenId`. See {ERC721-_burn}.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - The caller must own `tokenId` or be an approved operator.
|
||
|
|
*/
|
||
|
|
function burn(uint256 tokenId) public virtual {
|
||
|
|
//solhint-disable-next-line max-line-length
|
||
|
|
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
|
||
|
|
_burn(tokenId);
|
||
|
|
}
|
||
|
|
}
|