// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.2) (token/ERC1155/extensions/ERC1155Pausable.sol) pragma solidity ^0.8.19; import {ERC1155} from "../ERC1155.sol"; import {Pausable} from "../../../security/Pausable.sol"; /** * @dev ERC1155 token with pausable token transfers, minting and burning. * * Useful for scenarios such as preventing trades until the end of an evaluation * period, or having an emergency switch for freezing all token transfers in the * event of a large bug. * * IMPORTANT: This contract does not include public pause and unpause functions. In * addition to inheriting this contract, you must define both functions, invoking the * {Pausable-_pause} and {Pausable-_unpause} internal functions, with appropriate * access control, e.g. using {AccessControl} or {Ownable}. Not doing so will * make the contract pause mechanism of the contract unreachable, and thus unusable. */ abstract contract ERC1155Pausable is ERC1155, Pausable { /** * @dev See {ERC1155-_update}. * * Requirements: * * - the contract must not be paused. */ function _update( address from, address to, uint256[] memory ids, uint256[] memory values ) internal virtual override whenNotPaused { super._update(from, to, ids, values); } }