1//===--- ClangTidyModule.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_CLANGTIDYMODULE_H
10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANGTIDYMODULE_H
11
12#include "ClangTidyOptions.h"
13#include "llvm/ADT/StringMap.h"
14#include "llvm/ADT/StringRef.h"
15#include <functional>
16#include <memory>
17
18namespace clang::tidy {
19
20class ClangTidyCheck;
21class ClangTidyContext;
22
23/// A collection of \c ClangTidyCheckFactory instances.
24///
25/// All clang-tidy modules register their check factories with an instance of
26/// this object.
27class ClangTidyCheckFactories {
28public:
29 using CheckFactory = std::function<std::unique_ptr<ClangTidyCheck>(
30 llvm::StringRef Name, ClangTidyContext *Context)>;
31
32 /// Registers check \p Factory with name \p Name.
33 ///
34 /// For all checks that have default constructors, use \c registerCheck.
35 void registerCheckFactory(llvm::StringRef Name, CheckFactory Factory);
36
37 /// Registers the \c CheckType with the name \p Name.
38 ///
39 /// This method should be used for all \c ClangTidyChecks that don't require
40 /// constructor parameters.
41 ///
42 /// For example, if have a clang-tidy check like:
43 /// \code
44 /// class MyTidyCheck : public ClangTidyCheck {
45 /// void registerMatchers(ast_matchers::MatchFinder *Finder) override {
46 /// ..
47 /// }
48 /// };
49 /// \endcode
50 /// you can register it with:
51 /// \code
52 /// class MyModule : public ClangTidyModule {
53 /// void addCheckFactories(ClangTidyCheckFactories &Factories) override {
54 /// Factories.registerCheck<MyTidyCheck>("myproject-my-check");
55 /// }
56 /// };
57 /// \endcode
58 template <typename CheckType> void registerCheck(llvm::StringRef CheckName) {
59 registerCheckFactory(Name: CheckName,
60 Factory: [](llvm::StringRef Name, ClangTidyContext *Context) {
61 return std::make_unique<CheckType>(Name, Context);
62 });
63 }
64
65 /// Create instances of checks that are enabled.
66 std::vector<std::unique_ptr<ClangTidyCheck>>
67 createChecks(ClangTidyContext *Context) const;
68
69 /// Create instances of checks that are enabled for the current Language.
70 std::vector<std::unique_ptr<ClangTidyCheck>>
71 createChecksForLanguage(ClangTidyContext *Context) const;
72
73 using FactoryMap = llvm::StringMap<CheckFactory>;
74 FactoryMap::const_iterator begin() const { return Factories.begin(); }
75 FactoryMap::const_iterator end() const { return Factories.end(); }
76 bool empty() const { return Factories.empty(); }
77
78private:
79 FactoryMap Factories;
80};
81
82/// A clang-tidy module groups a number of \c ClangTidyChecks and gives
83/// them a prefixed name.
84class ClangTidyModule {
85public:
86 virtual ~ClangTidyModule() {}
87
88 /// Implement this function in order to register all \c CheckFactories
89 /// belonging to this module.
90 virtual void addCheckFactories(ClangTidyCheckFactories &CheckFactories) = 0;
91
92 /// Gets default options for checks defined in this module.
93 virtual ClangTidyOptions getModuleOptions();
94};
95
96} // namespace clang::tidy
97
98#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANGTIDYMODULE_H
99

source code of clang-tools-extra/clang-tidy/ClangTidyModule.h