Uniswap Protocol: Permit2 | Optimism

codeslaw

Permit2Uniswap Protocol: Permit2Solidityv0.8.17+commit.8df45f5f

network

Optimism

address0x000000000022d473030f116ddee9f6b43ac78ba3

deployer0x4e59b44847b379578588920cA78FbF26c0B4956C

tx last 12 months

0 txs

calls last 12 months

0 calls

13 Files

lib

solmate

src

tokens

ERC20.sol

utils

SafeTransferLib.sol

src

AllowanceTransfer.sol

EIP712.sol

Permit2.sol

PermitErrors.sol

SignatureTransfer.sol

interfaces

IAllowanceTransfer.sol

IERC1271.sol

ISignatureTransfer.sol

libraries

Allowance.sol

PermitHash.sol

SignatureVerification.sol

Source: Etherscan, Smart Contract Sanctuary, or Sourcify. For more information, see our about page.

abi

constructor

No constructor.

functions

allowance

view

function allowance(address, address, address) view returns (uint160 amount, uint48 expiration, uint48 nonce)

DOMAIN_SEPARATOR

view

function DOMAIN_SEPARATOR() view returns (bytes32)

nonceBitmap

view

function nonceBitmap(address, uint256) view returns (uint256)

approve

nonpayable

function approve(address token, address spender, uint160 amount, uint48 expiration)

invalidateNonces

nonpayable

function invalidateNonces(address token, address spender, uint48 newNonce)

invalidateUnorderedNonces

nonpayable

function invalidateUnorderedNonces(uint256 wordPos, uint256 mask)

lockdown

nonpayable

function lockdown(tuple[] approvals)

permit

nonpayable

function permit(address owner, tuple permitSingle, bytes signature)

permit

nonpayable

function permit(address owner, tuple permitBatch, bytes signature)

permitTransferFrom

nonpayable

function permitTransferFrom(tuple permit, tuple transferDetails, address owner, bytes signature)

permitTransferFrom

nonpayable

function permitTransferFrom(tuple permit, tuple[] transferDetails, address owner, bytes signature)

permitWitnessTransferFrom

nonpayable

function permitWitnessTransferFrom(tuple permit, tuple transferDetails, address owner, bytes32 witness, string witnessTypeString, bytes signature)

permitWitnessTransferFrom

nonpayable

function permitWitnessTransferFrom(tuple permit, tuple[] transferDetails, address owner, bytes32 witness, string witnessTypeString, bytes signature)

transferFrom

nonpayable

function transferFrom(tuple[] transferDetails)

transferFrom

nonpayable

function transferFrom(address from, address to, uint160 amount, address token)

events

Approval

event Approval(address indexed owner, address indexed token, address indexed spender, uint160 amount, uint48 expiration)

Lockdown

event Lockdown(address indexed owner, address token, address spender)

NonceInvalidation

event NonceInvalidation(address indexed owner, address indexed token, address indexed spender, uint48 newNonce, uint48 oldNonce)

Permit

event Permit(address indexed owner, address indexed token, address indexed spender, uint160 amount, uint48 expiration, uint48 nonce)

UnorderedNonceInvalidation

event UnorderedNonceInvalidation(address indexed owner, uint256 word, uint256 mask)

errors

AllowanceExpired

error AllowanceExpired(uint256 deadline)

ExcessiveInvalidation

error ExcessiveInvalidation()

InsufficientAllowance

error InsufficientAllowance(uint256 amount)

InvalidAmount

error InvalidAmount(uint256 maxAmount)

InvalidContractSignature

error InvalidContractSignature()

InvalidNonce

error InvalidNonce()

InvalidSignature

error InvalidSignature()

InvalidSignatureLength

error InvalidSignatureLength()

InvalidSigner

error InvalidSigner()

LengthMismatch

error LengthMismatch()

SignatureExpired

error SignatureExpired(uint256 signatureDeadline)

bytecode

creation bytecode

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