Files
openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol
Hadrien Croubois e192fac276 Simplify UUPSUpgradeable along the lines of ERC1822 (#3021)
Co-authored-by: Francisco Giordano <frangio.1@gmail.com>
2022-01-13 15:46:55 -03:00

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863 B
Solidity

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.x.0 (proxy/ERC1822/IProxiable.sol)
pragma solidity ^0.8.0;
/**
* @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
* proxy whose upgrades are fully controlled by the current implementation.
*/
interface IERC1822Proxiable {
/**
* @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
* address.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy.
*/
function proxiableUUID() external view returns (bytes32);
}