Initializable

Git Source

Author: mortimr @ Kiln

This contracts helps upgradeable contracts handle an internal version value to prevent initializer replays.

Unstructured Storage Friendly

State Variables

$version

The version number in storage.

Slot: keccak256(bytes("initializable.version"))) - 1

types.Uint256 internal constant $version =
    types.Uint256.wrap(0xc4c7f1ccb588f39a9aa57be6cfd798d73912e27b44cfa18e1a5eba7b34e81a76);

Functions

init

The modifier to use on initializers.

Do not provide _version dynamically, make sure the value is hard-coded each time the modifier is used.

modifier init(uint256 _version);

Parameters

Events

Initialized

The version has been initialized.

event Initialized(uint256 version, bytes cdata);

Errors

AlreadyInitialized

The init modifier has already been called on the given version number.

error AlreadyInitialized(uint256 version, uint256 currentVersion);