BeaconProxy

Inherits: Proxy

This contract implements a proxy that gets the implementation address for each call from an {UpgradeableBeacon}. The beacon address can only be set once during construction, and cannot be changed afterwards. It is stored in an immutable variable to avoid unnecessary storage reads, and also in the beacon storage slot specified by https://eips.ethereum.org/EIPS/eip-1967[ERC-1967] so that it can be accessed externally. CAUTION: Since the beacon address can never be changed, you must ensure that you either control the beacon, or trust the beacon to not upgrade the implementation maliciously. IMPORTANT: Do not use the implementation logic to modify the beacon storage slot. Doing so would leave the proxy in an inconsistent state where the beacon storage slot does not match the beacon address.

State Variables

_beacon

address private immutable _beacon;

Functions

constructor

*Initializes the proxy with beacon. If data is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This will typically be an encoded function call, and allows initializing the storage of the proxy like a Solidity constructor. Requirements:

• beacon must be a contract with the interface {IBeacon}.
• If data is empty, msg.value must be zero.*

constructor(address beacon, bytes memory data) payable;

_implementation

Returns the current implementation address of the associated beacon.

function _implementation() internal view virtual override returns (address);

_getBeacon

Returns the beacon.

function _getBeacon() internal view virtual returns (address);