Delegator
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Exposes a signer address (via getSigner()) that allows an authorized EOA to sign off on actions on behalf of a contract
Allows developers to create Coordinator subscriptions off-chain, on behalf of a contract, by signing a
DelegateSubscription from signer and submitting to EIP712Coordinator.createSubscriptionDelegatee()
In theory, this could use EIP-1271 standard signature validation but that enables a contract owner to override what is a valid signature, which is more of a shotgun than just imposing a signer be specified
State Variables
signer
Authorized address with signing privileges
Recommended to use an EOA so that it can sign EIP-712 messages
Visibility is private to prevent downstream direct modification outside of via _updateSigner()
address private signer;Functions
constructor
Initialize new Delegator
constructor(address signer_);Parameters
| Name | Type | Description |
|---|---|---|
signer_ | address | authorized address |
_updateSigner
Update delegated signer
No event is emitted given contract is meant to be inherited
function _updateSigner(address newSigner) internal;Parameters
| Name | Type | Description |
|---|---|---|
newSigner | address | new delegated signer address |
getSigner
Get delegated signer
function getSigner() external view returns (address);Returns
| Name | Type | Description |
|---|---|---|
<none> | address | authorized signer address |