3e6c86392c
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com> Co-authored-by: Francisco Giordano <fg@frang.io> Co-authored-by: Ernesto García <ernestognw@gmail.com> Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Eric Lau <ericglau@outlook.com> Co-authored-by: Hadrien Croubois <hadrien.croubois@gmail.com>
41 lines
1.7 KiB
Solidity
41 lines
1.7 KiB
Solidity
// SPDX-License-Identifier: MIT
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// OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Proxy.sol)
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pragma solidity ^0.8.20;
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import {Proxy} from "../Proxy.sol";
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import {ERC1967Utils} from "./ERC1967Utils.sol";
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/**
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* @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
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* implementation address that can be changed. This address is stored in storage in the location specified by
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* https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
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* implementation behind the proxy.
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*/
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contract ERC1967Proxy is Proxy {
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/**
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* @dev Initializes the upgradeable proxy with an initial implementation specified by `implementation`.
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*
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* If `_data` is nonempty, it's used as data in a delegate call to `implementation`. This will typically be an
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* encoded function call, and allows initializing the storage of the proxy like a Solidity constructor.
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*
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* Requirements:
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*
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* - If `data` is empty, `msg.value` must be zero.
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*/
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constructor(address implementation, bytes memory _data) payable {
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ERC1967Utils.upgradeToAndCall(implementation, _data);
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}
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/**
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* @dev Returns the current implementation address.
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*
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* TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using
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* the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
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* `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
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*/
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function _implementation() internal view virtual override returns (address) {
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return ERC1967Utils.getImplementation();
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}
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}
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