DCIPs/assets/eip-6150/contracts/ERC6150AccessControl.sol

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// SPDX-License-Identifier: CC0-1.0
pragma solidity ^0.8.0;
import "./ERC6150.sol";
import "./interfaces/IERC6150AccessControl.sol";
abstract contract ERC6150AccessControl is ERC6150, IERC6150AccessControl {
mapping(address => mapping(uint256 => bool)) private _isAdminOf;
function isAdminOf(
uint256 tokenId,
address account
) public view virtual override returns (bool) {
return _isAdminOf[account][tokenId];
}
function canMintChildren(
uint256 parentId,
address account
) public view virtual override returns (bool) {
return isAdminOf(parentId, account);
}
function canBurnTokenByAccount(
uint256 tokenId,
address account
) public view virtual override returns (bool) {
require(isLeaf(tokenId), "not a leaf token");
return isAdminOf(tokenId, account);
}
function _afterMintWithParent(
address to,
uint256 parentId,
uint256 tokenId
) internal virtual override {
_isAdminOf[to][tokenId] = true;
}
function _addAdmin(address admin, uint256 tokenId) internal virtual {
require(admin != address(0), "zero address");
require(_exists(tokenId), "tokenId doesn't exist");
_isAdminOf[admin][tokenId] = true;
}
function _removeAdmin(address admin, uint256 tokenId) internal virtual {
require(_isAdminOf[admin][tokenId] == true, "not an admin");
require(admin != ownerOf(tokenId), "cannot remove owner");
_isAdminOf[admin][tokenId] = false;
}
}