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 {
15 namespace tidy {
16 namespace readability {
17 
18 /// Checks for use of implicit bool conversions in expressions.
19 ///
20 /// For the user-facing documentation see:
21 /// http://clang.llvm.org/extra/clang-tidy/checks/readability-implicit-bool-conversion.html
22 class ImplicitBoolConversionCheck : public ClangTidyCheck {
23 public:
24   ImplicitBoolConversionCheck(StringRef Name, ClangTidyContext *Context);
isLanguageVersionSupported(const LangOptions & LangOpts)25   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
26     return LangOpts.Bool;
27   }
28   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
29   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
30   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
31 
32 private:
33   void handleCastToBool(const ImplicitCastExpr *CastExpression,
34                         const Stmt *ParentStatement, ASTContext &Context);
35   void handleCastFromBool(const ImplicitCastExpr *CastExpression,
36                           const ImplicitCastExpr *FurtherImplicitCastExpression,
37                           ASTContext &Context);
38 
39   const bool AllowIntegerConditions;
40   const bool AllowPointerConditions;
41 };
42 
43 } // namespace readability
44 } // namespace tidy
45 } // namespace clang
46 
47 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_IMPLICIT_BOOL_CONVERSION_H
48