1 //===--- UncheckedOptionalAccessCheck.h - clang-tidy ------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_UNCHECKEDOPTIONALACCESSCHECK_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_UNCHECKEDOPTIONALACCESSCHECK_H
11 
12 #include "../ClangTidyCheck.h"
13 #include "clang/ASTMatchers/ASTMatchFinder.h"
14 
15 namespace clang {
16 namespace tidy {
17 namespace bugprone {
18 
19 /// Warns when the code is unwrapping a `std::optional<T>`, `absl::optional<T>`,
20 /// or `base::Optional<T>` object without assuring that it contains a value.
21 ///
22 /// For the user-facing documentation see:
23 /// http://clang.llvm.org/extra/clang-tidy/checks/bugprone/unchecked-optional-access.html
24 class UncheckedOptionalAccessCheck : public ClangTidyCheck {
25 public:
UncheckedOptionalAccessCheck(StringRef Name,ClangTidyContext * Context)26   UncheckedOptionalAccessCheck(StringRef Name, ClangTidyContext *Context)
27       : ClangTidyCheck(Name, Context) {}
28   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
29   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
isLanguageVersionSupported(const LangOptions & LangOpts)30   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
31     return LangOpts.CPlusPlus;
32   }
33 };
34 
35 } // namespace bugprone
36 } // namespace tidy
37 } // namespace clang
38 
39 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_UNCHECKEDOPTIONALACCESSCHECK_H
40