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utilities
IPermit2
IPermit2: Comprehensive interface for Uniswap’s Permit2 system, combining allowance transfers and signature-based transfers (Unifies functionality from multiple Permit2 interfaces for token approvals and transfers)
Overview
- name: IPermit2
- path:
IPermit2.sol - context: erc20
- tags: utility, permit, erc20, signature, uniswap
- title: IPermit2
- notice: Comprehensive interface for Uniswap’s Permit2 system, combining allowance transfers and signature-based transfers
- dev: Unifies functionality from multiple Permit2 interfaces for token approvals and transfers
Addresses
Function signatures
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DOMAIN_SEPARATOR()
PERMIT_BATCH_TRANSFER_FROM_TYPEHASH()
PERMIT_BATCH_TYPEHASH()
PERMIT_BATCH_WITH_ALLOWANCE_TYPEHASH()
PERMIT_BATCH_WITNESS_TRANSFER_FROM_TYPEHASH()
PERMIT_DETAILS_TYPEHASH()
PERMIT_DETAILS_WITH_ALLOWANCE_TYPEHASH()
PERMIT_TRANSFER_FROM_TYPEHASH()
PERMIT_TYPEHASH()
PERMIT_WITH_ALLOWANCE_TYPEHASH()
PERMIT_WITNESS_TRANSFER_FROM_TYPEHASH()
TOKEN_PERMISSIONS_TYPEHASH()
TRANSFER_DETAILS_TYPEHASH()
allowance(address,address,address)
approve(address,address,uint160,uint48)
approveBatch(tuple[])
increaseAllowance(address,address,uint160,uint48)
invalidateNonces(address,address,uint48)
lockdown(tuple[])
nonceBitmap(address,uint256)
permit(address,address,uint160,uint256,bytes)
permitBatch(address,tuple[],uint256,bytes)
permitBatchTransferFrom(tuple,tuple[],address,bytes)
permitBatchWithAllowance(address,tuple[],uint256,bytes)
permitBatchWitnessTransferFrom(tuple,tuple[],address,bytes,bytes)
permitTransferFrom(tuple,tuple,address,bytes)
permitWithAllowance(address,address,uint160,uint48,uint256,bytes)
permitWitnessTransferFrom(tuple,tuple,address,bytes,bytes)
revoke(address,address)
revokeBatch(tuple[])
transferFrom(address,address,uint160,address)
transferFromBatch(tuple[])
ABI
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[
{
"inputs": [],
"name": "InsufficientAllowance",
"type": "error"
},
{
"inputs": [],
"name": "InvalidAmount",
"type": "error"
},
{
"inputs": [],
"name": "InvalidNonce",
"type": "error"
},
{
"inputs": [],
"name": "InvalidSignature",
"type": "error"
},
{
"inputs": [],
"name": "MissingWitness",
"type": "error"
},
{
"inputs": [],
"name": "PermitExpired",
"type": "error"
},
{
"inputs": [],
"name": "SignatureExpired",
"type": "error"
},
{
"inputs": [],
"name": "TokenContractMismatch",
"type": "error"
},
{
"inputs": [],
"name": "WitnessRequired",
"type": "error"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "token",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"indexed": false,
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"indexed": false,
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
},
{
"indexed": false,
"internalType": "uint48",
"name": "nonce",
"type": "uint48"
}
],
"name": "Approval",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "token",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"indexed": false,
"internalType": "uint48",
"name": "nonce",
"type": "uint48"
}
],
"name": "Lockdown",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "token",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "from",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "to",
"type": "address"
},
{
"indexed": false,
"internalType": "uint256",
"name": "amount",
"type": "uint256"
},
{
"indexed": false,
"internalType": "uint256",
"name": "nonce",
"type": "uint256"
}
],
"name": "SignatureTransfer",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "token",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"indexed": false,
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"indexed": false,
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
},
{
"indexed": false,
"internalType": "uint48",
"name": "nonce",
"type": "uint48"
}
],
"name": "Transfer",
"type": "event"
},
{
"inputs": [],
"name": "DOMAIN_SEPARATOR",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_BATCH_TRANSFER_FROM_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_BATCH_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_BATCH_WITH_ALLOWANCE_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_BATCH_WITNESS_TRANSFER_FROM_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_DETAILS_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_DETAILS_WITH_ALLOWANCE_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_TRANSFER_FROM_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_WITH_ALLOWANCE_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "PERMIT_WITNESS_TRANSFER_FROM_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "TOKEN_PERMISSIONS_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "TRANSFER_DETAILS_TYPEHASH",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
}
],
"name": "allowance",
"outputs": [
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
},
{
"internalType": "uint48",
"name": "nonce",
"type": "uint48"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
}
],
"name": "approve",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
},
{
"internalType": "uint48",
"name": "nonce",
"type": "uint48"
}
],
"internalType": "struct IPermit2.PermitDetails[]",
"name": "approvals",
"type": "tuple[]"
}
],
"name": "approveBatch",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
}
],
"name": "increaseAllowance",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint48",
"name": "newNonce",
"type": "uint48"
}
],
"name": "invalidateNonces",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
},
{
"internalType": "uint48",
"name": "nonce",
"type": "uint48"
}
],
"internalType": "struct IPermit2.PermitDetails[]",
"name": "approvals",
"type": "tuple[]"
}
],
"name": "lockdown",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "uint256",
"name": "nonce",
"type": "uint256"
}
],
"name": "nonceBitmap",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
},
{
"internalType": "bytes",
"name": "signature",
"type": "bytes"
}
],
"name": "permit",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"components": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
},
{
"internalType": "uint48",
"name": "nonce",
"type": "uint48"
}
],
"internalType": "struct IPermit2.PermitDetails[]",
"name": "permitDetails",
"type": "tuple[]"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
},
{
"internalType": "bytes",
"name": "signature",
"type": "bytes"
}
],
"name": "permitBatch",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"components": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"internalType": "struct IPermit2.TokenPermissions[]",
"name": "permitted",
"type": "tuple[]"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint256",
"name": "nonce",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"internalType": "struct IPermit2.PermitBatchTransferFrom",
"name": "permit",
"type": "tuple"
},
{
"components": [
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"internalType": "struct IPermit2.TransferDetails[]",
"name": "transferDetails",
"type": "tuple[]"
},
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "bytes",
"name": "signature",
"type": "bytes"
}
],
"name": "permitBatchTransferFrom",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"components": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
},
{
"internalType": "uint48",
"name": "nonce",
"type": "uint48"
},
{
"internalType": "address",
"name": "allowanceTarget",
"type": "address"
},
{
"internalType": "uint48",
"name": "allowanceExpiration",
"type": "uint48"
}
],
"internalType": "struct IPermit2.PermitDetailsWithAllowance[]",
"name": "permitDetails",
"type": "tuple[]"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
},
{
"internalType": "bytes",
"name": "signature",
"type": "bytes"
}
],
"name": "permitBatchWithAllowance",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"components": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"internalType": "struct IPermit2.TokenPermissions[]",
"name": "permitted",
"type": "tuple[]"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint256",
"name": "nonce",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
},
{
"internalType": "bytes32",
"name": "witness",
"type": "bytes32"
}
],
"internalType": "struct IPermit2.PermitBatchWitnessTransferFrom",
"name": "permit",
"type": "tuple"
},
{
"components": [
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"internalType": "struct IPermit2.TransferDetails[]",
"name": "transferDetails",
"type": "tuple[]"
},
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "bytes",
"name": "signature",
"type": "bytes"
},
{
"internalType": "bytes",
"name": "witnessData",
"type": "bytes"
}
],
"name": "permitBatchWitnessTransferFrom",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"components": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"internalType": "struct IPermit2.TokenPermissions",
"name": "permitted",
"type": "tuple"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint256",
"name": "nonce",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"internalType": "struct IPermit2.PermitTransferFrom",
"name": "permit",
"type": "tuple"
},
{
"components": [
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"internalType": "struct IPermit2.TransferDetails",
"name": "transferDetails",
"type": "tuple"
},
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "bytes",
"name": "signature",
"type": "bytes"
}
],
"name": "permitTransferFrom",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
},
{
"internalType": "bytes",
"name": "signature",
"type": "bytes"
}
],
"name": "permitWithAllowance",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"components": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"internalType": "struct IPermit2.TokenPermissions",
"name": "permitted",
"type": "tuple"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint256",
"name": "nonce",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
},
{
"internalType": "bytes32",
"name": "witness",
"type": "bytes32"
}
],
"internalType": "struct IPermit2.PermitWitnessTransferFrom",
"name": "permit",
"type": "tuple"
},
{
"components": [
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"internalType": "struct IPermit2.TransferDetails",
"name": "transferDetails",
"type": "tuple"
},
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "bytes",
"name": "signature",
"type": "bytes"
},
{
"internalType": "bytes",
"name": "witnessData",
"type": "bytes"
}
],
"name": "permitWitnessTransferFrom",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
}
],
"name": "revoke",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "uint48",
"name": "expiration",
"type": "uint48"
},
{
"internalType": "uint48",
"name": "nonce",
"type": "uint48"
}
],
"internalType": "struct IPermit2.PermitDetails[]",
"name": "approvals",
"type": "tuple[]"
}
],
"name": "revokeBatch",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "from",
"type": "address"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "address",
"name": "token",
"type": "address"
}
],
"name": "transferFrom",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"internalType": "address",
"name": "from",
"type": "address"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint160",
"name": "amount",
"type": "uint160"
},
{
"internalType": "address",
"name": "token",
"type": "address"
}
],
"internalType": "struct IPermit2.AllowanceTransferDetails[]",
"name": "transferDetails",
"type": "tuple[]"
}
],
"name": "transferFromBatch",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
}
]
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