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
40