compilerplugins/clang/sharedvisitor/dummyplugin.hxx

   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  * This file is distributed under the University of Illinois Open Source
   8  * License. See LICENSE.TXT for details.
   9  *
  10  */
  11
  12 #ifndef DUMMYPLUGIN_H
  13 #define DUMMYPLUGIN_H
  14
  15 #include "config_clang.h"
  16
  17 #include "../plugin.hxx"
  18
  19 using namespace clang;
  20 using namespace llvm;
  21
  22 namespace loplugin
  23 {
  24
  25 // These classes are used as base classes when building with LO_CLANG_SHARED_PLUGINS.
  26 // Since plugin classes in that case should use just one shared RecursiveASTVisitor,
  27 // sharedvisitor/generator.cxx will make these to be the base classes used, so that
  28 // compiling the code doesn't spend a several minutes optimizing instances
  29 // of RecursiveASTVisitor that will never get used.
  30
  31 template<typename T>
  32 class DummyRecursiveASTVisitor
  33 {
  34 public:
  35     // These need to be reimplemented, because plugins contain calls to them,
  36     // but they should actually never get called in the shared-visitor mode.
  37     // This could be autogenerated too, but it's probably simpler to just extend
  38     // manually as needed.
  39     bool TraverseDecl( Decl* ) { return complain(); }
  40     bool TraverseLinkageSpecDecl( LinkageSpecDecl* ) { return complain(); }
  41     bool TraverseStmt( Stmt* ) { return complain(); }
  42     bool TraverseIfStmt( IfStmt* ) { return complain(); }
  43     bool TraverseWhileStmt( WhileStmt* ) { return complain(); }
  44     bool TraverseDoStmt( DoStmt* ) { return complain(); }
  45     bool TraverseForStmt( ForStmt* ) { return complain(); }
  46     bool TraverseCXXForRangeStmt( CXXForRangeStmt* ) { return complain(); }
  47     bool TraverseConditionalOperator( ConditionalOperator* ) { return complain(); }
  48     bool TraverseCXXCatchStmt( CXXCatchStmt* ) { return complain(); }
  49     bool TraverseCXXDestructorDecl( CXXDestructorDecl* ) { return complain(); }
  50     bool TraverseFunctionDecl( FunctionDecl* ) { return complain(); }
  51     bool TraverseSwitchStmt( SwitchStmt* ) { return complain(); }
  52     bool TraverseImplicitCastExpr( ImplicitCastExpr* ) { return complain(); }
  53     bool TraverseCStyleCastExpr( CStyleCastExpr* ) { return complain(); }
  54     bool TraverseCXXStaticCastExpr( CXXStaticCastExpr* ) { return complain(); }
  55     bool TraverseCXXFunctionalCastExpr( CXXFunctionalCastExpr* ) { return complain(); }
  56     bool TraverseFriendDecl( FriendDecl* ) { return complain(); }
  57     bool TraverseTypeLoc( TypeLoc ) { return complain(); }
  58     bool TraverseAlignedAttr( AlignedAttr* ) { return complain(); }
  59 private:
  60     bool complain() { assert(false && "should not be calling this in sharedplugin mode"); abort(); return false; }
  61 };
  62
  63 template<typename Derived>
  64 class DummyFilteringPlugin : public DummyRecursiveASTVisitor<Derived>, public Plugin
  65 {
  66 public:
  67     explicit DummyFilteringPlugin( const InstantiationData& data ) : Plugin(data) {}
  68 };
  69
  70 template<typename Derived>
  71 class DummyFilteringRewritePlugin : public DummyRecursiveASTVisitor<Derived>, public RewritePlugin
  72 {
  73 public:
  74     explicit DummyFilteringRewritePlugin( const InstantiationData& data ) : RewritePlugin(data) {}
  75 };
  76
  77 } // namespace
  78
  79 #endif // DUMMYPLUGIN_H
  80
  81 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */