IB20.permit

Generated B20 reference for permit(address,address,uint256,uint256,uint8,bytes32,bytes32).

Signature

function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external;

Field	Value
Selector	0xd505accf
Canonical signature	permit(address,address,uint256,uint256,uint8,bytes32,bytes32)

Description

EIP-2612 permit. Recovers owner via ECDSA from (v, r, s). EOA signatures only; ERC-1271 contract signatures are NOT supported. Emits Approval.

Parameters

Parameter	Description
owner	Token holder granting the allowance.
spender	Account being granted the allowance.
value	Allowance amount.
deadline	Unix timestamp after which the signature is invalid.
v	ECDSA recovery byte.
r	ECDSA signature r component.
s	ECDSA signature s component.

Reverts

• ExpiredSignature when block.timestamp > deadline.
• InvalidSigner when ECDSA recovery does not yield owner.
• InvalidSpender when spender == address(0).

Access control

Read-only or ERC-20-standard access rules unless the NatSpec states otherwise.

Policy interaction

No direct policy interaction.

Example

IB20(target).permit(owner, spender, value, deadline, v, r, s);