public static IntPtr AddressOfHeap <T>(ref T t, OffsetType offset) where T : class
{
switch (offset)
{
case OffsetType.StringData:
AssertType <string, T>();
var s = t as string;
return(AddressOfHeap(ref s) + RuntimeHelpers.OffsetToStringData);
case OffsetType.ArrayData:
if (!typeof(T).IsArray)
{
TypeException.Throw <Array, T>();
}
return(AddressOfHeap(ref t) + Runtime.Runtime.OffsetToArrayData);
case OffsetType.Fields:
// todo: if the type is an array, should this return ArrayData,
// todo: ...and if it's a string, should this return StringData?
// Skip over the MethodTable*
return(AddressOfHeap(ref t) + IntPtr.Size);
case OffsetType.None:
return(AddressOfHeap(ref t));
default:
throw new ArgumentOutOfRangeException(nameof(offset), offset, null);
}
}
public static ArrayObject **GetArrayObject <T>(ref T t) where T : class
{
if (!typeof(T).IsArray)
{
TypeException.Throw <Array, T>();
}
return((ArrayObject **)Unsafe.AddressOf(ref t));
}