Initial commit

.gas-snapshot

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+TestSimpleTStore:testEmptyRead() (gas: 5614)
+TestSimpleTStore:testStore() (gas: 6415)

.github/workflows/ci.yml

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+name: CI
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+env:
+  FOUNDRY_PROFILE: ci
+
+jobs:
+  run-ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Install deps
+        run: forge install
+
+      - name: Check gas snapshots
+        run: forge snapshot --check --use bin/solc
+
+      - name: Run tests
+        run: forge test --use bin/solc

.gitignore

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+cache/
+out/

.gitmodules

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+[submodule "lib/forge-std"]
+	path = lib/forge-std
+	url = https://github.com/foundry-rs/forge-std

LICENSE

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>

Readme.md

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+# Transient Store Foundry Template
+
+A foundry template with custom `solc` binaries (from [transient-storage](https://github.com/ethereum/solidity/tree/transient-store)) that supports transient storage opcodes in inline assembly.
+```bash
+forge build --use bin/solc
+forge test  --use bin/solc
+```
+
+## Example contract
+
+```solidity
+contract SimpleTStore {
+    function tstore(uint key, uint value) external {
+        assembly {
+            tstore(key, value)
+        }
+    }
+    function tload(uint key) external view returns (uint value) {
+        assembly {
+            value := tload(key)
+        }
+    }
+}
+```

bin/solc

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+#!/bin/bash
+
+# Function to detect the operating system
+detect_os() {
+    local os
+    if [[ "$(uname)" == "Darwin" ]]; then
+        os="mac"
+    elif [[ "$(uname)" == "Linux" ]]; then
+        os="linux"
+    else
+        os="unknown"
+    fi
+    echo "$os"
+}
+
+# Main script logic
+main() {
+    local os=$(detect_os)
+
+    case $os in
+        mac)
+            ./bin/solc-osx "$@"
+            ;;
+        linux)
+            ./bin/solc-static-linux "$@"
+            ;;
+        *)
+            echo "Unsupported OS"
+            exit 1
+            ;;
+    esac
+}
+
+main "$@"

foundry.toml

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+[profile.default]
+cancun = true
+[profile.ci.fuzz]
+runs = 10_000

src/SimpleTStore.sol

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+// SPDX-License-Identifier: Unlicense
+pragma solidity ^0.8.20;
+
+contract SimpleTStore {
+    function tstore(uint key, uint value) external {
+        assembly {
+            tstore(key, value)
+        }
+    }
+    function tload(uint key) external view returns (uint value) {
+        assembly {
+            value := tload(key)
+        }
+    }
+}

test/SimpleTStore.t.sol

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+// SPDX-License-Identifier: Unlicense
+pragma solidity ^0.8.13;
+
+import "forge-std/Test.sol";
+
+import "src/SimpleTStore.sol";
+
+contract TestSimpleTStore is Test {
+    SimpleTStore c;
+
+    function setUp() public {
+        c = new SimpleTStore();
+    }
+
+    function testEmptyRead() public {
+        assertEq(c.tload(0), 0);
+    }
+
+    function testStore() public {
+        c.tstore(0, 1);
+        assertEq(c.tload(0), 1);
+    }
+}