// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.4;

// modules
import {LSP7DigitalAsset} from "../LSP7DigitalAsset.sol";

/**
 * @title LSP7 token extension that allows token holders to destroy both
 * their own tokens and those that they have an allowance for as an operator.
 */
abstract contract LSP7Burnable is LSP7DigitalAsset {
    /**
     * @dev See internal {_burn} function for details.
     */
    function burn(
        address from,
        uint256 amount,
        bytes memory data
    ) public virtual {
        if (msg.sender != from) {
            _spendAllowance(msg.sender, from, amount);
        }

        _burn(from, amount, data);
    }
}