ERC721Burnable.sol 695 B

12345678910111213141516171819202122232425
  1. // SPDX-License-Identifier: MIT
  2. pragma solidity ^0.8.0;
  3. import "../ERC721.sol";
  4. import "../../../utils/Context.sol";
  5. /**
  6. * @title ERC721 Burnable Token
  7. * @dev ERC721 Token that can be irreversibly burned (destroyed).
  8. */
  9. abstract contract ERC721Burnable is Context, ERC721 {
  10. /**
  11. * @dev Burns `tokenId`. See {ERC721-_burn}.
  12. *
  13. * Requirements:
  14. *
  15. * - The caller must own `tokenId` or be an approved operator.
  16. */
  17. function burn(uint256 tokenId) public virtual {
  18. //solhint-disable-next-line max-line-length
  19. require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
  20. _burn(tokenId);
  21. }
  22. }