Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/build/clang-plugin/TrivialCtorDtorChecker.cpp b/build/clang-plugin/TrivialCtorDtorChecker.cpp
new file mode 100644
index 0000000000..59576a5b64
--- /dev/null
+++ b/build/clang-plugin/TrivialCtorDtorChecker.cpp
@@ -0,0 +1,29 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "TrivialCtorDtorChecker.h"
+#include "CustomMatchers.h"
+
+void TrivialCtorDtorChecker::registerMatchers(MatchFinder *AstMatcher) {
+  AstMatcher->addMatcher(cxxRecordDecl(hasTrivialCtorDtor()).bind("node"),
+                         this);
+}
+
+void TrivialCtorDtorChecker::check(const MatchFinder::MatchResult &Result) {
+  const char *Error = "class %0 must have trivial constructors and destructors";
+  const CXXRecordDecl *Node = Result.Nodes.getNodeAs<CXXRecordDecl>("node");
+
+  if (!Node->hasDefinition()) {
+    return;
+  }
+
+  // We need to accept non-constexpr trivial constructors as well. This occurs
+  // when a struct contains pod members, which will not be initialized. As
+  // constexpr values are initialized, the constructor is non-constexpr.
+  bool BadCtor = !(Node->hasConstexprDefaultConstructor() ||
+                   Node->hasTrivialDefaultConstructor());
+  bool BadDtor = !Node->hasTrivialDestructor();
+  if (BadCtor || BadDtor)
+    diag(Node->getBeginLoc(), Error, DiagnosticIDs::Error) << Node;
+}