compilerplugins/clang/staticanonymous.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  * Based on LLVM/Clang.
   6  *
   7  */
   8 #include "plugin.hxx"
   9
  10 /*
  11 This is a compile check.
  12
  13 Warns about functions with static keyword in an unnamed namespace.
  14 */
  15
  16 namespace loplugin
  17 {
  18
  19 class StaticAnonymous
  20     : public RecursiveASTVisitor< StaticAnonymous >
  21     , public Plugin
  22     {
  23     public:
  24         explicit StaticAnonymous( const InstantiationData& data );
  25         virtual void run() override;
  26         bool VisitFunctionDecl( FunctionDecl* func );
  27
  28     };
  29
  30 StaticAnonymous::StaticAnonymous( const InstantiationData& data )
  31     : Plugin( data )
  32     {
  33     }
  34
  35 void StaticAnonymous::run()
  36     {
  37     TraverseDecl( compiler.getASTContext().getTranslationUnitDecl());
  38     }
  39
  40
  41 bool StaticAnonymous::VisitFunctionDecl( FunctionDecl* func )
  42
  43     {
  44     if( ignoreLocation( func ) )
  45         return true;
  46     if( func -> isInAnonymousNamespace () )
  47     {
  48       if ( !isa<CXXMethodDecl>(func) && !func->isInExternCContext() )
  49          {
  50             if(func-> getStorageClass() == SC_Static)
  51                {
  52                     report( DiagnosticsEngine::Warning,
  53                         "redundant 'static' keyword in unnamed namespace",
  54                         func->getLocStart());
  55                }
  56          }
  57     }
  58
  59     return true;
  60     }
  61
  62 // Register the plugin action with the LO plugin handling.
  63 static Plugin::Registration< StaticAnonymous > X( "staticanonymous",true);
  64
  65 } // namespace
  66
  67 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */