T

.gas-snapshot

@@ -1,5 +1,5 @@
-LibTransientTest:testTransientSetAndGet(bytes32,uint256) (runs: 256, μ: 700, ~: 700)
-LibTransientTest:test__codesize() (gas: 1779)
+LibTTest:testLibT(bytes32,uint256) (runs: 256, μ: 700, ~: 700)
+LibTTest:test__codesize() (gas: 1779)
 ReentrancyGuardTest:testRecursiveDirectUnguardedCall() (gas: 32203)
 ReentrancyGuardTest:testRecursiveIndirectUnguardedCall() (gas: 45600)
 ReentrancyGuardTest:testRevertGuardLocked() (gas: 31984)

README.md

@@ -27,7 +27,7 @@ The Solidity smart contracts are located in the `src` directory.
 
 ```ml
 utils
-├─ LibTransient — "Transient storage get/set helper"
+├─ LibT — "Transient storage helper"
 └─ ReentrancyGuard — "Reentrancy guard mixin"
 ```
 

src/utils/LibTransient.sol → src/utils/LibT.sol

@@ -1,9 +1,9 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.24;
 
-/// @notice Transient storage get/set helper.
-/// @author Soledge (https://github.com/vectorized/soledge/blob/main/src/utils/LibTransient.sol)
-library LibTransient {
+/// @notice Transient storage helper.
+/// @author Soledge (https://github.com/vectorized/soledge/blob/main/src/utils/LibT.sol)
+library LibT {
     /// @dev Returns the value at `tSlot` in transient storage.
     function get(bytes32 tSlot) internal view returns (bytes32 result) {
         /// @solidity memory-safe-assembly
@@ -19,4 +19,12 @@ library LibTransient {
             tstore(tSlot, value)
         }
     }
+
+    /// @dev Resets the value at `tSlot` in transient storage to zero.
+    function reset(bytes32 tSlot) internal {
+        /// @solidity memory-safe-assembly
+        assembly {
+            tstore(tSlot, 0)
+        }
+    }
 }

test/LibT.sol

@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.24;
+
+import "./utils/SoladyTest.sol";
+import {LibT} from "../src/utils/LibT.sol";
+
+contract LibTTest is SoladyTest {
+    function testLibT(bytes32 s, uint256 i) public {
+        unchecked {
+            assertEq(LibT.get(s), bytes32(0));
+            LibT.set(s, bytes32(i));
+            assertEq(LibT.get(s), bytes32(i));
+        }
+    }
+}