65 lines
2.5 KiB
Solidity
65 lines
2.5 KiB
Solidity
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.19;
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/**
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* @title AddressMapperEmpty
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* @notice Same interface as AddressMapper but with no initial mappings (for chains other than 138).
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* @dev Deploy on Cronos, BSC, etc. and add mappings via setMapping() if needed.
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*/
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contract AddressMapperEmpty {
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mapping(address => address) private _addressMap;
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mapping(address => address) private _reverseMap;
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address public owner;
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event AddressMapped(address indexed genesisAddress, address indexed deployedAddress);
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event MappingRemoved(address indexed genesisAddress);
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modifier onlyOwner() {
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require(msg.sender == owner, "AddressMapper: caller is not owner");
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_;
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}
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constructor() {
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owner = msg.sender;
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}
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function getDeployedAddress(address genesisAddress) external view returns (address) {
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address deployed = _addressMap[genesisAddress];
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return deployed == address(0) ? genesisAddress : deployed;
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}
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function getGenesisAddress(address deployedAddress) external view returns (address) {
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return _reverseMap[deployedAddress];
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}
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function isMapped(address addr) external view returns (bool) {
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return _addressMap[addr] != address(0);
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}
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function setMapping(address genesisAddress, address deployedAddress) external onlyOwner {
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require(genesisAddress != address(0), "AddressMapper: genesis address cannot be zero");
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require(deployedAddress != address(0), "AddressMapper: deployed address cannot be zero");
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require(genesisAddress != deployedAddress, "AddressMapper: addresses must be different");
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address oldDeployed = _addressMap[genesisAddress];
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if (oldDeployed != address(0)) delete _reverseMap[oldDeployed];
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address oldGenesis = _reverseMap[deployedAddress];
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if (oldGenesis != address(0)) delete _addressMap[oldGenesis];
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_addressMap[genesisAddress] = deployedAddress;
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_reverseMap[deployedAddress] = genesisAddress;
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emit AddressMapped(genesisAddress, deployedAddress);
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}
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function removeMapping(address genesisAddress) external onlyOwner {
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address deployed = _addressMap[genesisAddress];
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require(deployed != address(0), "AddressMapper: mapping does not exist");
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delete _addressMap[genesisAddress];
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delete _reverseMap[deployed];
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emit MappingRemoved(genesisAddress);
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}
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function transferOwnership(address newOwner) external onlyOwner {
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require(newOwner != address(0), "AddressMapper: new owner cannot be zero");
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owner = newOwner;
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}
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}
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