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 #include "clang/Analysis/FlowSensitive/Models/UncheckedOptionalAccessModel.h" 15 16 namespace clang::tidy::bugprone { 17 18 /// Warns when the code is unwrapping a `std::optional<T>`, `absl::optional<T>`, 19 /// or `base::std::optional<T>` object without assuring that it contains a 20 /// 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: 26 UncheckedOptionalAccessCheck(StringRef Name, ClangTidyContext *Context) 27 : ClangTidyCheck(Name, Context), 28 ModelOptions{Options.get("IgnoreSmartPointerDereference", false)} {} 29 void registerMatchers(ast_matchers::MatchFinder *Finder) override; 30 void check(const ast_matchers::MatchFinder::MatchResult &Result) override; 31 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override { 32 return LangOpts.CPlusPlus; 33 } 34 void storeOptions(ClangTidyOptions::OptionMap &Opts) override { 35 Options.store(Opts, "IgnoreSmartPointerDereference", 36 ModelOptions.IgnoreSmartPointerDereference); 37 } 38 39 private: 40 dataflow::UncheckedOptionalAccessModelOptions ModelOptions; 41 }; 42 43 } // namespace clang::tidy::bugprone 44 45 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_UNCHECKEDOPTIONALACCESSCHECK_H 46