clang-tools-extra/clang-tidy/readability/ImplicitBoolConversionCheck.h

   1 //===--- ImplicitBoolConversionCheck.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_READABILITY_IMPLICIT_BOOL_CONVERSION_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_IMPLICIT_BOOL_CONVERSION_H
  11
  12 #include "../ClangTidyCheck.h"
  13
  14 namespace clang::tidy::readability {
  15
  16 /// Checks for use of implicit bool conversions in expressions.
  17 ///
  18 /// For the user-facing documentation see:
  19 /// http://clang.llvm.org/extra/clang-tidy/checks/readability/implicit-bool-conversion.html
  20 class ImplicitBoolConversionCheck : public ClangTidyCheck {
  21 public:
  22   ImplicitBoolConversionCheck(StringRef Name, ClangTidyContext *Context);
  23   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
  24     return LangOpts.Bool;
  25   }
  26   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
  27   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  28   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  29
  30 private:
  31   void handleCastToBool(const ImplicitCastExpr *CastExpression,
  32                         const Stmt *ParentStatement, ASTContext &Context);
  33   void handleCastFromBool(const ImplicitCastExpr *Cast,
  34                           const ImplicitCastExpr *NextImplicitCast,
  35                           ASTContext &Context);
  36
  37   const bool AllowIntegerConditions;
  38   const bool AllowPointerConditions;
  39   const bool UseUpperCaseLiteralSuffix;
  40 };
  41
  42 } // namespace clang::tidy::readability
  43
  44 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_IMPLICIT_BOOL_CONVERSION_H