[clang-tools-extra] [clang-tidy] Add check to diagnose coroutine-hostile RAII objects (PR #68738)

[Piotr Zegar via cfe-commits]

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@@ -0,0 +1,45 @@
+//===--- CoroutineHostileRAIICheck.h - clang-tidy ----------------*- C++-*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_COROUTINESHOSTILERAIICHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_COROUTINESHOSTILERAIICHECK_H
+
+#include "../ClangTidyCheck.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/Basic/DiagnosticIDs.h"
+#include "llvm/ADT/StringRef.h"
+#include <vector>
+
+namespace clang::tidy::misc {
+
+/// This check detects hostile-RAII objects which should not persist across a
+/// suspension point in a coroutine.
+///
+///  For the user-facing documentation see:
+///  http://clang.llvm.org/extra/clang-tidy/checks/misc/coroutine-hostile-raii.html
+class CoroutineHostileRAIICheck : public ClangTidyCheck {
+public:
+  CoroutineHostileRAIICheck(llvm::StringRef Name, ClangTidyContext *Context);
+
+  bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
+    return LangOpts.CPlusPlus20;
+  }
+
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+
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PiotrZSL wrote:

Please specify TK_IgnoreUnlessSpelledInSource or TK_AsIs to avoid some confusion in future.

https://github.com/llvm/llvm-project/pull/68738