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);
isLanguageVersionSupported(const LangOptions & LangOpts)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 };
40 
41 } // namespace clang::tidy::readability
42 
43 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_IMPLICIT_BOOL_CONVERSION_H
44