lldb/include/lldb/Core/ValueObjectDynamicValue.h

//===-- ValueObjectDynamicValue.h -----------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef liblldb_ValueObjectDynamicValue_h_
#define liblldb_ValueObjectDynamicValue_h_

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/ValueObject.h"
#include "lldb/Symbol/ClangASTType.h"

namespace lldb_private {

    class ValueObjectCast : public ValueObject
    {
    public:
        static lldb::ValueObjectSP
        Create (ValueObject &parent, 
                const ConstString &name, 
                const ClangASTType &cast_type);

        virtual
        ~ValueObjectCast();
        
        virtual size_t
        GetByteSize();
        
        virtual uint32_t
        CalculateNumChildren();
        
        virtual lldb::ValueType
        GetValueType() const;
        
        virtual bool
        IsInScope ();
        
        virtual bool
        IsDynamic ()
        {
            return true;
        }
        
        virtual ValueObject *
        GetParent()
        {
            if (m_parent)
                return m_parent->GetParent();
            else
                return NULL;
        }
        
        virtual const ValueObject *
        GetParent() const
        {
            if (m_parent)
                return m_parent->GetParent();
            else
                return NULL;
        }
        
        virtual lldb::ValueObjectSP
        GetStaticValue ()
        {
            return m_parent->GetSP();
        }
        
    protected:
        virtual bool
        UpdateValue ();
        
        virtual clang::ASTContext *
        GetClangASTImpl ();
        
        virtual lldb::clang_type_t
        GetClangTypeImpl ();
        
        ClangASTType m_cast_type;
        
    private:
        ValueObjectCast (ValueObject &parent, 
                         const ConstString &name, 
                         const ClangASTType &cast_type);
        
        //------------------------------------------------------------------
        // For ValueObject only
        //------------------------------------------------------------------
        DISALLOW_COPY_AND_ASSIGN (ValueObjectCast);
    };

//----------------------------------------------------------------------
// A ValueObject that represents memory at a given address, viewed as some 
// set lldb type.
//----------------------------------------------------------------------
class ValueObjectDynamicValue : public ValueObject
{
public:
    virtual
    ~ValueObjectDynamicValue();

    virtual size_t
    GetByteSize();

    virtual ConstString
    GetTypeName();

    virtual uint32_t
    CalculateNumChildren();

    virtual lldb::ValueType
    GetValueType() const;

    virtual bool
    IsInScope ();
    
    virtual bool
    IsDynamic ()
    {
        return true;
    }
    
    virtual ValueObject *
    GetParent()
    {
        if (m_parent)
            return m_parent->GetParent();
        else
            return NULL;
    }

    virtual const ValueObject *
    GetParent() const
    {
        if (m_parent)
            return m_parent->GetParent();
        else
            return NULL;
    }

    virtual lldb::ValueObjectSP
    GetStaticValue ()
    {
        return m_parent->GetSP();
    }
    
    void
    SetOwningSP (lldb::ValueObjectSP &owning_sp)
    {
        if (m_owning_valobj_sp == owning_sp)
            return;
            
        assert (m_owning_valobj_sp.get() == NULL);
        m_owning_valobj_sp = owning_sp;
    }
    
protected:
    virtual bool
    UpdateValue ();
    
    virtual clang::ASTContext *
    GetClangASTImpl ();
    
    virtual lldb::clang_type_t
    GetClangTypeImpl ();

    Address  m_address;  ///< The variable that this value object is based upon
    lldb::TypeSP m_type_sp;
    lldb::ValueObjectSP m_owning_valobj_sp;
    lldb::DynamicValueType m_use_dynamic;

private:
    friend class ValueObject;
    ValueObjectDynamicValue (ValueObject &parent, lldb::DynamicValueType use_dynamic);

    //------------------------------------------------------------------
    // For ValueObject only
    //------------------------------------------------------------------
    DISALLOW_COPY_AND_ASSIGN (ValueObjectDynamicValue);
};

} // namespace lldb_private

#endif  // liblldb_ValueObjectDynamicValue_h_