35 lines
1.3 KiB
Solidity
35 lines
1.3 KiB
Solidity
// SPDX-License-Identifier: MIT
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// OpenZeppelin Contracts (last updated v4.8.2) (token/ERC721/extensions/ERC721Pausable.sol)
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pragma solidity ^0.8.19;
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import {ERC721} from "../ERC721.sol";
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import {Pausable} from "../../../security/Pausable.sol";
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/**
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* @dev ERC721 token with pausable token transfers, minting and burning.
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*
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* Useful for scenarios such as preventing trades until the end of an evaluation
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* period, or having an emergency switch for freezing all token transfers in the
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* event of a large bug.
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*
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* IMPORTANT: This contract does not include public pause and unpause functions. In
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* addition to inheriting this contract, you must define both functions, invoking the
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* {Pausable-_pause} and {Pausable-_unpause} internal functions, with appropriate
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* access control, e.g. using {AccessControl} or {Ownable}. Not doing so will
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* make the contract pause mechanism of the contract unreachable, and thus unusable.
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*/
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abstract contract ERC721Pausable is ERC721, Pausable {
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/**
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* @dev See {ERC721-_update}.
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*
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* Requirements:
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*
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* - the contract must not be paused.
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*/
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function _update(address to, uint256 tokenId, address operatorCheck) internal virtual override returns (address) {
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_requireNotPaused();
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return super._update(to, tokenId, operatorCheck);
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}
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}
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