clang-tools-extra/clang-tidy/bugprone/OptionalValueConversionCheck.h

   1 //===--- OptionalValueConversionCheck.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_OPTIONALVALUECONVERSIONCHECK_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_OPTIONALVALUECONVERSIONCHECK_H
  11
  12 #include "../ClangTidyCheck.h"
  13 #include <vector>
  14
  15 namespace clang::tidy::bugprone {
  16
  17 /// Detects potentially unintentional and redundant conversions where a value is
  18 /// extracted from an optional-like type and then used to create a new instance
  19 /// of the same optional-like type.
  20 ///
  21 /// For the user-facing documentation see:
  22 /// http://clang.llvm.org/extra/clang-tidy/checks/bugprone/optional-value-conversion.html
  23 class OptionalValueConversionCheck : public ClangTidyCheck {
  24 public:
  25   OptionalValueConversionCheck(StringRef Name, ClangTidyContext *Context);
  26   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  27   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  28   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
  29   std::optional<TraversalKind> getCheckTraversalKind() const override;
  30
  31 private:
  32   std::vector<StringRef> OptionalTypes;
  33   std::vector<StringRef> ValueMethods;
  34 };
  35
  36 } // namespace clang::tidy::bugprone
  37
  38 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_OPTIONALVALUECONVERSIONCHECK_H