compilerplugins/clang/privatebase.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include "plugin.hxx"
  11
  12 namespace {
  13
  14 class PrivateBase:
  15     public RecursiveASTVisitor<PrivateBase>, public loplugin::Plugin
  16 {
  17 public:
  18     explicit PrivateBase(loplugin::InstantiationData const & data): Plugin(data)
  19     {}
  20
  21     void run() override;
  22
  23     bool VisitCXXRecordDecl(CXXRecordDecl const * decl);
  24 };
  25
  26 void PrivateBase::run() {
  27     if (compiler.getLangOpts().CPlusPlus) {
  28         TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
  29     }
  30 }
  31
  32 bool PrivateBase::VisitCXXRecordDecl(CXXRecordDecl const * decl) {
  33     if (ignoreLocation(decl) || !decl->isThisDeclarationADefinition()
  34         || decl->getTagKind() != TTK_Class)
  35     {
  36         return true;
  37     }
  38     for (auto i = decl->bases_begin(); i != decl->bases_end(); ++i) {
  39         if (i->getAccessSpecifierAsWritten() == AS_none) {
  40             report(
  41                 DiagnosticsEngine::Warning,
  42                 "base class is private by default; explicitly give an access"
  43                     " specifier",
  44                 i->getLocStart())
  45                 << i->getSourceRange();
  46         }
  47     }
  48     return true;
  49 }
  50
  51 loplugin::Plugin::Registration<PrivateBase> X("privatebase");
  52
  53 }
  54
  55 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */