BaseImmutableAdminUpgradeabilityProxy

This contract combines an upgradeability proxy with an authorization mechanism for administrative tasks.

_The admin role is stored in an immutable, which helps saving transactions costs All external functions in this contract must be guarded by the ifAdmin modifier. See ethereum/solidity#3864 for a Solidity feature proposal that would enable this to be done automatically.

_admin

address _admin

constructor

constructor(address admin_) public

Constructor.

Parameters

Name	Type	Description
admin_	address	The address of the admin

ifAdmin

modifier ifAdmin()

admin

function admin() external returns (address)

Return the admin address

Return Values

Name	Type	Description
[0]	address	The address of the proxy admin.

implementation

function implementation() external returns (address)

Return the implementation address

Return Values

Name	Type	Description
[0]	address	The address of the implementation.

upgradeTo

function upgradeTo(address newImplementation) external

Upgrade the backing implementation of the proxy.

Only the admin can call this function.

Parameters

Name	Type	Description
newImplementation	address	The address of the new implementation.

upgradeToAndCall

function upgradeToAndCall(address newImplementation, bytes data) external payable

Upgrade the backing implementation of the proxy and call a function on the new implementation.

This is useful to initialize the proxied contract.

Parameters

Name	Type	Description
newImplementation	address	The address of the new implementation.
data	bytes	Data to send as msg.data in the low level call. It should include the signature and the parameters of the function to be called, as described in https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.

_willFallback

function _willFallback() internal virtual

Only fall back when the sender is not the admin.