| 1 | //===--- TemplateVirtualMemberFunctionCheck.cpp - clang-tidy --------------===// |
|---|---|
| 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 | #include "TemplateVirtualMemberFunctionCheck.h" |
| 10 | #include "clang/ASTMatchers/ASTMatchFinder.h" |
| 11 | |
| 12 | using namespace clang::ast_matchers; |
| 13 | |
| 14 | namespace clang::tidy::portability { |
| 15 | namespace { |
| 16 | AST_MATCHER(CXXMethodDecl, isUsed) { return Node.isUsed(); } |
| 17 | } // namespace |
| 18 | |
| 19 | void TemplateVirtualMemberFunctionCheck::registerMatchers(MatchFinder *Finder) { |
| 20 | Finder->addMatcher( |
| 21 | NodeMatch: cxxMethodDecl(ofClass(InnerMatcher: classTemplateSpecializationDecl( |
| 22 | unless(isExplicitTemplateSpecialization())) |
| 23 | .bind(ID: "specialization")), |
| 24 | isVirtual(), unless(isUsed()), |
| 25 | unless(cxxDestructorDecl(isDefaulted()))) |
| 26 | .bind(ID: "method"), |
| 27 | Action: this); |
| 28 | } |
| 29 | |
| 30 | void TemplateVirtualMemberFunctionCheck::check( |
| 31 | const MatchFinder::MatchResult &Result) { |
| 32 | const auto *ImplicitSpecialization = |
| 33 | Result.Nodes.getNodeAs<ClassTemplateSpecializationDecl>(ID: "specialization"); |
| 34 | const auto *MethodDecl = Result.Nodes.getNodeAs<CXXMethodDecl>(ID: "method"); |
| 35 | |
| 36 | diag(MethodDecl->getLocation(), |
| 37 | "unspecified virtual member function instantiation; the virtual " |
| 38 | "member function is not instantiated but it might be with a " |
| 39 | "different compiler"); |
| 40 | diag(Loc: ImplicitSpecialization->getPointOfInstantiation(), |
| 41 | Description: "template instantiated here", Level: DiagnosticIDs::Note); |
| 42 | } |
| 43 | |
| 44 | } // namespace clang::tidy::portability |
| 45 |