object to pointer

.assembly EntityPtr { }

.class public System.Runtime.CLR.EntityPtr

{
    .method public static native int ToPointer<TType> ( !!TType input)
    {
        ldarg.0
        conv.i4
        ldc.i4 4
        sub
        conv.i
        ret
    }

    .method public static native int ToPointerWithOffset<TType> ( !!TType input)
    {
        ldarg.0
        ret
    }

    .method public static !!TType ToInstance<TType> ( native int input)
    {
        ldarg.0
        conv.i4
        ldc.i4 4
        add
        conv.i
        ret
    }

    .method public static !!TType ToInstanceWithOffset<TType> ( native int input)
    {
        ldarg.0
        ret
    }

}