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BeaconProxy

BeaconProxy​

This contract implements a proxy that gets the implementation address for each call from an UpgradeableBeacon.

The beacon address is stored in storage slot uint256(keccak256('eip1967.proxy.beacon')) - 1, so that it doesn't conflict with the storage layout of the implementation behind the proxy.

Available since v3.4.

constructor​

constructor() public

initialize​

function initialize(address _admin, address _beaconAddress, bytes data) external

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.
  • data must set initialized to > 1

_beacon​

function _beacon() internal view virtual returns (address)

Returns the current beacon address.

beacon​

function beacon() external view virtual returns (address)

_implementation​

function _implementation() internal view virtual returns (address)

Returns the current implementation address of the associated beacon.

_setBeacon​

function _setBeacon(address _beaconAddress, bytes data) internal virtual

Changes the proxy to use a new beacon. Deprecated: see _upgradeBeaconToAndCall(...).

If data is nonempty, it's used as data in a delegate call to the implementation returned by the beacon.

Requirements:

  • beacon must be a contract.
  • The implementation returned by beacon must be a contract.

setBeacon​

function setBeacon(address _beaconAddress, bytes data) external