clang-tools 6.0.0

VirtualInheritanceCheck.cpp
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1 //===--- VirtualInheritanceCheck.cpp - clang-tidy--------------------------===//
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 #include "VirtualInheritanceCheck.h"
11 #include "clang/AST/ASTContext.h"
12 #include "clang/ASTMatchers/ASTMatchFinder.h"
13
14 using namespace clang::ast_matchers;
15
16 namespace clang {
17 namespace tidy {
18 namespace fuchsia {
19
20 AST_MATCHER(CXXRecordDecl, hasDirectVirtualBaseClass) {
21 if (!Node.hasDefinition()) return false;
22 if (!Node.getNumVBases()) return false;
23 for (const CXXBaseSpecifier &Base : Node.bases())
24 if (Base.isVirtual()) return true;
25 return false;
26 }
27
28 void VirtualInheritanceCheck::registerMatchers(MatchFinder *Finder) {
29 // Defining classes using direct virtual inheritance is disallowed.
30 Finder->addMatcher(cxxRecordDecl(hasDirectVirtualBaseClass()).bind("decl"),
31 this);
32 }
33
34 void VirtualInheritanceCheck::check(const MatchFinder::MatchResult &Result) {
35 if (const auto *D = Result.Nodes.getNodeAs<CXXRecordDecl>("decl"))
36 diag(D->getLocStart(), "direct virtual inheritance is disallowed");
37 }
38
39 } // namespace fuchsia
40 } // namespace tidy
41 } // namespace clang
clang::ast_matchers
Definition: ClangTidyDiagnosticConsumer.h:27
VirtualInheritanceCheck.h
clang
Definition: AndroidTidyModule.cpp:28
clang::ast_matchers::AST_MATCHER
AST_MATCHER(VarDecl, isAsm)
Definition: NoAssemblerCheck.cpp:18