68 lines
2.0 KiB
Solidity
68 lines
2.0 KiB
Solidity
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// SPDX-License-Identifier: CC0-1.0
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pragma solidity ^0.8.0;
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import "./ERC721Bound.sol";
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import "./IERC5058Factory.sol";
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contract ERC5058Factory is IERC5058Factory {
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address[] private _allBounds;
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// Mapping from preimage to bound
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mapping(address => address) private _bounds;
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function allBoundsLength() public view virtual override returns (uint256) {
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return _allBounds.length;
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}
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function boundByIndex(uint256 index) public view virtual override returns (address) {
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require(index < _allBounds.length, "ERC5058Factory: index out of bounds");
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return _allBounds[index];
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}
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function existBound(address preimage) public view virtual override returns (bool) {
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return _bounds[preimage] != address(0);
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}
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function boundOf(address preimage) public view virtual override returns (address) {
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require(existBound(preimage), "ERC5058Factory: query for nonexistent bound");
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return _bounds[preimage];
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}
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function boundDeploy(address preimage) public virtual override returns (address) {
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require(!existBound(preimage), "ERC5058Factory: bound nft is already deployed");
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return _deploy(preimage, keccak256(abi.encode(preimage)), "Bound");
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}
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function _deploy(
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address preimage,
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bytes32 salt,
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bytes memory prefix
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) internal returns (address) {
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IERC721Metadata collection = IERC721Metadata(preimage);
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bytes memory code = type(ERC721Bound).creationCode;
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bytes memory bytecode = abi.encodePacked(
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code,
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abi.encode(
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preimage,
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abi.encodePacked(prefix, " ", collection.name()),
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abi.encodePacked(prefix, collection.symbol())
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)
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);
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address addr;
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assembly {
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addr := create2(0, add(bytecode, 0x20), mload(bytecode), salt)
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}
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emit DeployedBound(preimage, addr);
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_bounds[preimage] = addr;
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_allBounds.push(addr);
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return addr;
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}
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}
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