CoroutineHostileRAIICheck.h

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//===----------------------------------------------------------------------===//
//
// 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/AST/ASTTypeTraits.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "llvm/ADT/StringRef.h"
#include <vector>
 
namespace clang::tidy::misc {
 
/// Detects when objects of certain hostile RAII types persists across
/// suspension points in a coroutine. Such hostile types include scoped-lockable
/// types and types belonging to a configurable denylist.
///
///  For the user-facing documentation see:
///  https://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;
 
  std::optional<TraversalKind> getCheckTraversalKind() const override {
    return TK_AsIs;
  }
 
private:
  // List of fully qualified types which should not persist across a suspension
  // point in a coroutine.
  std::vector<StringRef> RAIITypesList;
  // List of fully qualified awaitable types which are considered safe to
  // co_await.
  std::vector<StringRef> AllowedAwaitablesList;
};
 
} // namespace clang::tidy::misc
 
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_COROUTINESHOSTILERAIICHECK_H