public virtual void InitNonPrimaryBase(ICppObject baseInDerived, ICppObject derived, Type baseType)
{
int offset;
var baseTypeInfo = GetCastInfo(derived.GetType(), baseType, out offset);
Marshal.WriteIntPtr(baseInDerived.Native.Native, baseTypeInfo.GCHandleOffset, CppInstancePtr.MakeGCHandle(baseInDerived));
}
// Fulfills ICppObject requirement
public CppInstancePtr(CppInstancePtr copy)
{
this.ptr = copy.ptr;
this.native_vtptr = copy.native_vtptr;
this.manage_memory = copy.manage_memory;
}
public T this [CppInstancePtr ip] {
get {
Type retType = typeof(T).IsEnum? Enum.GetUnderlyingType(typeof(T)) : typeof(T);
object retVal;
if (retType.Equals(typeof(IntPtr)))
{
retVal = Marshal.ReadIntPtr(ip.Native, fieldOffset);
}
else if (retType.Equals(typeof(Byte)))
{
retVal = Marshal.ReadByte(ip.Native, fieldOffset);
}
else if (retType.Equals(typeof(Int16)))
{
retVal = Marshal.ReadInt16(ip.Native, fieldOffset);
}
else if (retType.Equals(typeof(Int32)))
{
retVal = Marshal.ReadInt32(ip.Native, fieldOffset);
}
else if (typeof(ICppObject).IsAssignableFrom(retType))
{
var ptr = Marshal.ReadIntPtr(ip.Native, fieldOffset);
if (ptr == IntPtr.Zero)
{
return(default(T));
}
var ctor = retType.GetConstructor(new Type [] { typeof(IntPtr) });
if (ctor != null)
{
retVal = ctor.Invoke(new object [] { ptr });
}
else
{
ctor = retType.GetConstructor(new Type [] { typeof(CppInstancePtr) });
if (ctor == null)
{
throw new NotSupportedException("Type " + retType.Name + " does not have a constructor that takes either IntPtr or CppInstancePtr.");
}
retVal = ctor.Invoke(new object [] { new CppInstancePtr(ptr) });
}
}
else
{
throw new NotSupportedException("Cannot read C++ fields of type " + retType.Name);
}
return((T)retVal);
}
set {
Type setType = typeof(T).IsEnum? Enum.GetUnderlyingType(typeof(T)) : typeof(T);
object setVal = value;
if (setType.Equals(typeof(IntPtr)))
{
Marshal.WriteIntPtr(ip.Native, fieldOffset, (IntPtr)setVal);
}
else if (setType.Equals(typeof(Byte)))
{
Marshal.WriteByte(ip.Native, fieldOffset, (byte)setVal);
}
else if (setType.Equals(typeof(Int16)))
{
Marshal.WriteInt16(ip.Native, fieldOffset, (Int16)setVal);
}
else if (setType.Equals(typeof(Int32)))
{
Marshal.WriteInt32(ip.Native, fieldOffset, (Int32)setVal);
}
else if (typeof(ICppObject).IsAssignableFrom(setType))
{
if (value == null)
{
Marshal.WriteIntPtr(ip.Native, fieldOffset, IntPtr.Zero);
}
else
{
var cppobj = (ICppObject)value;
Marshal.WriteIntPtr(ip.Native, fieldOffset, (IntPtr)cppobj.Native);
}
}
else
{
throw new NotSupportedException("Cannot write C++ fields of type " + setType.Name);
}
}
}