clang-tools  6.0.0
ForwardingReferenceOverloadCheck.h
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1 //===--- ForwardingReferenceOverloadCheck.h - clang-tidy---------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_FORWARDING_REFERENCE_OVERLOAD_H
11 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_FORWARDING_REFERENCE_OVERLOAD_H
12 
13 #include "../ClangTidy.h"
14 
15 namespace clang {
16 namespace tidy {
17 namespace misc {
18 
19 /// The checker looks for constructors that can act as copy or move constructors
20 /// through their forwarding reference parameters. If a non const lvalue
21 /// reference is passed to the constructor, the forwarding reference parameter
22 /// can be a perfect match while the const reference parameter of the copy
23 /// constructor can't. The forwarding reference constructor will be called,
24 /// which can lead to confusion.
25 /// For detailed description of this problem see: Scott Meyers, Effective Modern
26 /// C++ Design, item 26.
27 ///
28 /// For the user-facing documentation see:
29 /// http://clang.llvm.org/extra/clang-tidy/checks/misc-forwarding-reference-overload.html
31 public:
33  : ClangTidyCheck(Name, Context) {}
34  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
35  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
36 };
37 
38 } // namespace misc
39 } // namespace tidy
40 } // namespace clang
41 
42 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_FORWARDING_REFERENCE_OVERLOAD_H
StringHandle Name
Base class for all clang-tidy checks.
Definition: ClangTidy.h:127
The checker looks for constructors that can act as copy or move constructors through their forwarding...
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
ForwardingReferenceOverloadCheck(StringRef Name, ClangTidyContext *Context)
Every ClangTidyCheck reports errors through a DiagnosticsEngine provided by this context.
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.