File indexing completed on 2024-06-16 04:23:17

 /*
     SPDX-FileCopyrightText: 2006 Roberto Raggi <roberto@kdevelop.org>
     SPDX-FileCopyrightText: 2006-2008 Hamish Rodda <rodda@kde.org>
     SPDX-FileCopyrightText: 2007-2008 David Nolden <david.nolden.kdevelop@art-master.de>
 
     SPDX-License-Identifier: LGPL-2.0-only
 */
 
 #ifndef KDEVPLATFORM_TYPESYSTEM_H
 #define KDEVPLATFORM_TYPESYSTEM_H
 
 #include "typepointer.h"
 #include "../identifier.h"
 #include "abstracttype.h"
 
 namespace KDevelop {
 class AbstractTypeDataRequest;
 
 class AbstractType;
 class IntegralType;
 class PointerType;
 class ReferenceType;
 class FunctionType;
 class StructureType;
 class ArrayType;
 
 class TypeExchanger;
 
 class KDEVPLATFORMLANGUAGE_EXPORT TypeVisitor
 {
 public:
     virtual ~TypeVisitor ();
 
     virtual bool preVisit (const AbstractType*) = 0;
     virtual void postVisit (const AbstractType*) = 0;
 
     ///Return whether sub-types should be visited(same for the other visit functions)
     virtual bool visit(const AbstractType*) = 0;
 
     virtual void visit (const IntegralType*) = 0;
 
     virtual bool visit (const PointerType*) = 0;
     virtual void endVisit (const PointerType*) = 0;
 
     virtual bool visit (const ReferenceType*) = 0;
     virtual void endVisit (const ReferenceType*) = 0;
 
     virtual bool visit (const FunctionType*) = 0;
     virtual void endVisit (const FunctionType*) = 0;
 
     virtual bool visit (const StructureType*) = 0;
     virtual void endVisit (const StructureType*) = 0;
 
     virtual bool visit (const ArrayType*) = 0;
     virtual void endVisit (const ArrayType*) = 0;
 };
 
 class KDEVPLATFORMLANGUAGE_EXPORT SimpleTypeVisitor
     : public TypeVisitor
 {
 public:
     /// When using SimpleTypeVisitor, the visit taking an AbstractType is the only function
     /// you must override to collect all types.
     using TypeVisitor::visit;
 
     bool preVisit (const AbstractType*) override;
     void postVisit (const AbstractType*) override;
 
     void visit (const IntegralType*) override;
 
     bool visit (const PointerType*) override;
     void endVisit (const PointerType*) override;
 
     bool visit (const ReferenceType*) override;
     void endVisit (const ReferenceType*) override;
 
     bool visit (const FunctionType*) override;
     void endVisit (const FunctionType*) override;
 
     bool visit (const StructureType*) override;
     void endVisit (const StructureType*) override;
 
     bool visit (const ArrayType*) override;
     void endVisit (const ArrayType*) override;
 };
 
 /**
  * A class that can be used to walk through all types that are references from one type, and exchange them with other types.
  * Examples for such types: Base-classes of a class, function-argument types of a function, etc.
  * */
 class KDEVPLATFORMLANGUAGE_EXPORT TypeExchanger
 {
 public:
     virtual ~TypeExchanger()
     {
     }
 
     /**
      * By default should return the given type, and can return another type that the given should be replaced with.
      * Types should allow replacing all their held types using this from within their exchangeTypes function.
      * The default-implementation recurses the exchange, so should be called from within the derived implementation if that is wished.
      * */
     virtual AbstractType::Ptr exchange(const AbstractType::Ptr&);
 };
 
 ///A simple type-exchanger that replaces one type with another
 class KDEVPLATFORMLANGUAGE_EXPORT SimpleTypeExchanger
     : public TypeExchanger
 {
 public:
     SimpleTypeExchanger(const AbstractType::Ptr& replace, const AbstractType::Ptr& replaceWith);
     AbstractType::Ptr exchange(const AbstractType::Ptr&) override;
 
 private:
     AbstractType::Ptr m_replace, m_replaceWith;
 };
 }
 
 #endif // KDEVPLATFORM_TYPESYSTEM_H