dexorder

lib_uniswap/v3-periphery/contracts/interfaces/ISelfPermit.sol

@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+pragma solidity >=0.7.5;
+
+/// @title Self Permit
+/// @notice Functionality to call permit on any EIP-2612-compliant token for use in the route
+interface ISelfPermit {
+    /// @notice Permits this contract to spend a given token from `msg.sender`
+    /// @dev The `owner` is always msg.sender and the `spender` is always address(this).
+    /// @param token The address of the token spent
+    /// @param value The amount that can be spent of token
+    /// @param deadline A timestamp, the current blocktime must be less than or equal to this timestamp
+    /// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
+    /// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
+    /// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
+    function selfPermit(
+        address token,
+        uint256 value,
+        uint256 deadline,
+        uint8 v,
+        bytes32 r,
+        bytes32 s
+    ) external payable;
+
+    /// @notice Permits this contract to spend a given token from `msg.sender`
+    /// @dev The `owner` is always msg.sender and the `spender` is always address(this).
+    /// Can be used instead of #selfPermit to prevent calls from failing due to a frontrun of a call to #selfPermit
+    /// @param token The address of the token spent
+    /// @param value The amount that can be spent of token
+    /// @param deadline A timestamp, the current blocktime must be less than or equal to this timestamp
+    /// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
+    /// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
+    /// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
+    function selfPermitIfNecessary(
+        address token,
+        uint256 value,
+        uint256 deadline,
+        uint8 v,
+        bytes32 r,
+        bytes32 s
+    ) external payable;
+
+    /// @notice Permits this contract to spend the sender's tokens for permit signatures that have the `allowed` parameter
+    /// @dev The `owner` is always msg.sender and the `spender` is always address(this)
+    /// @param token The address of the token spent
+    /// @param nonce The current nonce of the owner
+    /// @param expiry The timestamp at which the permit is no longer valid
+    /// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
+    /// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
+    /// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
+    function selfPermitAllowed(
+        address token,
+        uint256 nonce,
+        uint256 expiry,
+        uint8 v,
+        bytes32 r,
+        bytes32 s
+    ) external payable;
+
+    /// @notice Permits this contract to spend the sender's tokens for permit signatures that have the `allowed` parameter
+    /// @dev The `owner` is always msg.sender and the `spender` is always address(this)
+    /// Can be used instead of #selfPermitAllowed to prevent calls from failing due to a frontrun of a call to #selfPermitAllowed.
+    /// @param token The address of the token spent
+    /// @param nonce The current nonce of the owner
+    /// @param expiry The timestamp at which the permit is no longer valid
+    /// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
+    /// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
+    /// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
+    function selfPermitAllowedIfNecessary(
+        address token,
+        uint256 nonce,
+        uint256 expiry,
+        uint8 v,
+        bytes32 r,
+        bytes32 s
+    ) external payable;
+}