clang-tools-extra/clang-tidy/performance/ImplicitConversionInLoopCheck.h

   1 //===--- ImplicitConversionInLoopCheck.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_PERFORMANCE_IMPLICIT_CONVERSION_IN_LOOP_CHECK_H_
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_IMPLICIT_CONVERSION_IN_LOOP_CHECK_H_
  11
  12 #include "../ClangTidyCheck.h"
  13
  14 namespace clang::tidy::performance {
  15
  16 // Checks that in a for range loop, if the provided type is a reference, then
  17 // the underlying type is the one returned by the iterator (i.e. that there
  18 // isn't any implicit conversion).
  19 class ImplicitConversionInLoopCheck : public ClangTidyCheck {
  20 public:
  21   ImplicitConversionInLoopCheck(StringRef Name, ClangTidyContext *Context)
  22       : ClangTidyCheck(Name, Context) {}
  23       bool isLanguageVersionSupported(const LangOptions &LangOpts) const override{
  24         return LangOpts.CPlusPlus11;
  25       }
  26   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  27   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  28
  29 private:
  30   void reportAndFix(const ASTContext *Context, const VarDecl *VD,
  31                     const Expr *OperatorCall);
  32 };
  33
  34 } // namespace clang::tidy::performance
  35
  36 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_IMPLICIT_CONVERSION_IN_LOOP_CHECK_H_