Fix CodeQL workflow

.github/workflows/codeql.yml

@@ -20,16 +20,38 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v6
 
+    - name: Setup LLVM
+      if: matrix.language == 'cpp'
+      uses: ZhongRuoyu/setup-llvm@v0
+      with:
+        llvm-version: 22
+
+    - name: Setup Rust
+      if: matrix.language == 'rust'
+      uses: dtolnay/rust-toolchain@master
+      with:
+        toolchain: 1.94.0
+
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v4
       with:
         languages: ${{ matrix.language }}
+        trap-caching: false
         config: |
           paths-ignore:
             - 'tests/**'
 
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v4
+    - name: Build C++ code
+      if: matrix.language == 'cpp'
+      run: |
+        mkdir build && cd build
+        cmake -GNinja ..
+        ninja
+
+    - name: Build Rust code
+      if: matrix.language == 'rust'
+      run: cargo build --verbose
+      working-directory: libcc2rs
 
     - name: Perform CodeQL Analysis
       uses: github/codeql-action/analyze@v4

.github/workflows/run-tests.yml

@@ -29,11 +29,12 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         with:
           toolchain: 1.94.0
+          components: rustfmt
 
       - name: Setup Python
         uses: actions/setup-python@v6
         with:
-          cache: 'pip'
+          python-version: '3.x'
 
       - name: Install Python dependencies
         run: pip install tomli

CMakeLists.txt

@@ -34,7 +34,7 @@ list(APPEND CMAKE_MODULE_PATH "${CLANG_CMAKE_DIR}")
 include(AddLLVM)
 include(AddClang)
 
-if (NOT CMAKE_CXX_COMPILER MATCHES "clang")
+if (NOT CMAKE_CXX_COMPILER MATCHES "clang" AND NOT DEFINED ENV{CODEQL_EXTRACTOR_CPP_ROOT})
   set(CMAKE_CXX_COMPILER "${CLANG_CMAKE_DIR}/../../../bin/clang++")
 endif()
 

cpp2rust/converter/converter.cpp

@@ -1265,7 +1265,7 @@ void Converter::ConvertPrintf(clang::CallExpr *expr) {
       Mapper::ToString(expr->getCallee()).starts_with("int fprintf");
 
   StrCat("printf(");
-  for (auto i = is_fprintf ? 1 : 0; i < expr->getNumArgs(); i++) {
+  for (unsigned i = is_fprintf; i < expr->getNumArgs(); ++i) {
     if (i == is_fprintf ? 1 : 0) {
       Convert(expr->getArg(i));
       StrCat("as *const i8");
@@ -2008,7 +2008,7 @@ bool Converter::VisitDeclRefExpr(clang::DeclRefExpr *expr) {
       // Wrap unsafe function in safe closure because the Fn trait only accepts
       // safe functions
       std::string arguments;
-      for (unsigned i = 0; i < function->getNumParams(); i++) {
+      for (unsigned i = 0; i < function->getNumParams(); ++i) {
         arguments += (i ? ", a" : "a") + std::to_string(i);
       }
       StrCat("Rc::new", token::kOpenParen);
@@ -2255,7 +2255,7 @@ bool Converter::VisitInitListExpr(clang::InitListExpr *expr) {
             (arr_ty->getSize().getZExtValue() - expr->getNumInits()) &&
             "Number of initializers should be less that total size of array");
         for (unsigned i = 0;
-             i < arr_ty->getSize().getZExtValue() - expr->getNumInits(); i++) {
+             i < arr_ty->getSize().getZExtValue() - expr->getNumInits(); ++i) {
           ConvertVarInit(expr->getArrayFiller()->getType(),
                          expr->getArrayFiller());
           StrCat(token::kComma);
@@ -2623,7 +2623,7 @@ Converter::GetFunctionPointerDefaultAsString(clang::QualType qual_type) {
   auto proto = qual_type->getPointeeType()->getAs<clang::FunctionProtoType>();
   assert(proto);
   ret = "Rc::new(|";
-  for (unsigned i = 0; i < proto->getNumParams(); i++) {
+  for (unsigned i = 0; i < proto->getNumParams(); ++i) {
     ret += "_,";
   }
   ret += R"(| { panic!("ub: uninit function pointer") }))";

cpp2rust/converter/mapper.cpp

@@ -852,6 +852,7 @@ void LoadTranslationRules(Model model, clang::ASTContext &ctx,
   addRulesFromDirectory(rules_dir, model);
   addBuiltinTypes(model);
 
+#if 0
   for (auto &[src, expr] : exprs_) {
     llvm::errs() << "Expr: " << src << '\n';
     expr.dump();
@@ -860,6 +861,7 @@ void LoadTranslationRules(Model model, clang::ASTContext &ctx,
     llvm::errs() << "Type: " << src << '\n';
     type_tgt.dump();
   }
+#endif
 }
 
 } // namespace cpp2rust::Mapper