HandleMarshaler.cs

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using System.Runtime.InteropServices;
using Internal.Runtime.CompilerServices;
 
namespace System.StubHelpers;
 
internal sealed class HandleMarshaler
{
    internal static IntPtr ConvertSafeHandleToNative(SafeHandle handle, ref CleanupWorkListElement cleanupWorkList)
    {
        if (Unsafe.IsNullRef(ref cleanupWorkList))
        {
            throw new InvalidOperationException(SR.Interop_Marshal_SafeHandle_InvalidOperation);
        }
        if (handle == null)
        {
            throw new ArgumentNullException("handle");
        }
        return StubHelpers.AddToCleanupList(ref cleanupWorkList, handle);
    }
 
    internal static void ThrowSafeHandleFieldChanged()
    {
        throw new NotSupportedException(SR.Interop_Marshal_CannotCreateSafeHandleField);
    }
 
    internal static void ThrowCriticalHandleFieldChanged()
    {
        throw new NotSupportedException(SR.Interop_Marshal_CannotCreateCriticalHandleField);
    }
}