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

   1 //===--- IncDecInConditionsCheck.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_INCDECINCONDITIONSCHECK_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_INCDECINCONDITIONSCHECK_H
  11
  12 #include "../ClangTidyCheck.h"
  13
  14 namespace clang::tidy::bugprone {
  15
  16 /// Detects when a variable is both incremented/decremented and referenced
  17 /// inside a complex condition and suggests moving them outside to avoid
  18 /// ambiguity in the variable's value.
  19 ///
  20 /// For the user-facing documentation see:
  21 /// http://clang.llvm.org/extra/clang-tidy/checks/bugprone/inc-dec-in-conditions.html
  22 class IncDecInConditionsCheck : public ClangTidyCheck {
  23 public:
  24   IncDecInConditionsCheck(StringRef Name, ClangTidyContext *Context)
  25       : ClangTidyCheck(Name, Context) {}
  26   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  27   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  28   std::optional<TraversalKind> getCheckTraversalKind() const override {
  29     return TK_IgnoreUnlessSpelledInSource;
  30   }
  31 };
  32
  33 } // namespace clang::tidy::bugprone
  34
  35 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_INCDECINCONDITIONSCHECK_H