clang-tools-extra/clang-tidy/misc/UnusedParametersCheck.h

   1 //===--- UnusedParametersCheck.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_MISC_UNUSED_PARAMETERS_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSED_PARAMETERS_H
  11
  12 #include "../ClangTidyCheck.h"
  13
  14 namespace clang::tidy::misc {
  15
  16 /// Finds unused parameters and fixes them, so that `-Wunused-parameter` can be
  17 /// turned on.
  18 class UnusedParametersCheck : public ClangTidyCheck {
  19 public:
  20   UnusedParametersCheck(StringRef Name, ClangTidyContext *Context);
  21   ~UnusedParametersCheck();
  22   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  23   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  24   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
  25
  26 private:
  27   const bool StrictMode;
  28   const bool IgnoreVirtual;
  29   class IndexerVisitor;
  30   std::unique_ptr<IndexerVisitor> Indexer;
  31
  32   void
  33   warnOnUnusedParameter(const ast_matchers::MatchFinder::MatchResult &Result,
  34                         const FunctionDecl *Function, unsigned ParamIndex);
  35 };
  36
  37 } // namespace clang::tidy::misc
  38
  39 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNUSED_PARAMETERS_H