31 lines
1.1 KiB
Solidity
31 lines
1.1 KiB
Solidity
// SPDX-License-Identifier: GPL-3.0-or-later
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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pragma solidity >=0.7.0 <0.9.0;
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/**
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* @dev Interface for the SignatureValidator helper, used to support meta-transactions.
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*/
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interface ISignaturesValidator {
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/**
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* @dev Returns the EIP712 domain separator.
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*/
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function getDomainSeparator() external view returns (bytes32);
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/**
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* @dev Returns the next nonce used by an address to sign messages.
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*/
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function getNextNonce(address user) external view returns (uint256);
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}
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