1 files changed, 58 insertions, 0 deletions
diff --git a/clang-tools-extra/clang-tidy/fuchsia/TemporaryObjectsCheck.cpp b/clang-tools-extra/clang-tidy/fuchsia/TemporaryObjectsCheck.cpp
new file mode 100644
index 0000000..7b910b1
--- /dev/null
+++ b/clang-tools-extra/clang-tidy/fuchsia/TemporaryObjectsCheck.cpp
@@ -0,0 +1,58 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "TemporaryObjectsCheck.h"
+#include "../utils/OptionsUtils.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "llvm/ADT/STLExtras.h"
+#include <string>
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::fuchsia {
+
+namespace {
+
+AST_MATCHER_P(CXXRecordDecl, matchesAnyName, ArrayRef<StringRef>, Names) {
+  std::string QualifiedName = Node.getQualifiedNameAsString();
+  return llvm::is_contained(Names, QualifiedName);
+}
+
+} // namespace
+
+void TemporaryObjectsCheck::registerMatchers(MatchFinder *Finder) {
+  // Matcher for default constructors.
+  Finder->addMatcher(
+      cxxTemporaryObjectExpr(hasDeclaration(cxxConstructorDecl(hasParent(
+                                 cxxRecordDecl(matchesAnyName(Names))))))
+          .bind("temps"),
+      this);
+
+  // Matcher for user-defined constructors.
+  Finder->addMatcher(
+      traverse(TK_AsIs,
+               cxxConstructExpr(hasParent(cxxFunctionalCastExpr()),
+                                hasDeclaration(cxxConstructorDecl(hasParent(
+                                    cxxRecordDecl(matchesAnyName(Names))))))
+                   .bind("temps")),
+      this);
+}
+
+void TemporaryObjectsCheck::check(const MatchFinder::MatchResult &Result) {
+  if (const auto *D = Result.Nodes.getNodeAs<CXXConstructExpr>("temps"))
+    diag(D->getLocation(),
+         "creating a temporary object of type %q0 is prohibited")
+        << D->getConstructor()->getParent();
+}
+
+void TemporaryObjectsCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) {
+  Options.store(Opts, "Names", utils::options::serializeStringList(Names));
+}
+
+} // namespace clang::tidy::fuchsia