public unsafe void ToJS(Exception?value)
{
if (value == null)
{
slot.Type = MarshalerType.None;
}
else
{
Exception cpy = value;
if (cpy is AggregateException ae && ae.InnerExceptions.Count == 1)
{
cpy = ae.InnerExceptions[0];
}
var jse = cpy as JSException;
if (jse != null && jse.jsException != null)
{
// this is JSException roundtrip
if (jse.jsException.IsDisposed)
{
throw new ObjectDisposedException(nameof(value));
}
slot.Type = MarshalerType.JSException;
slot.JSHandle = jse.jsException.JSHandle;
}
else
{
ToJS(cpy.Message);
slot.Type = MarshalerType.Exception;
slot.GCHandle = JavaScriptExports.GetJSOwnedObjectGCHandleRef(cpy);
}
}
}
public unsafe void ToManaged(out Exception?value)
{
if (slot.Type == MarshalerType.None)
{
value = null;
return;
}
if (slot.Type == MarshalerType.Exception)
{
// this is managed exception round-trip
#pragma warning disable CS8600 // Converting null literal or possible null value to non-nullable type.
value = (Exception)((GCHandle)slot.GCHandle).Target;
#pragma warning restore CS8600 // Converting null literal or possible null value to non-nullable type.
return;
}
JSObject?jsException = null;
if (slot.JSHandle != IntPtr.Zero)
{
// this is JSException round-trip
jsException = JavaScriptExports.CreateCSOwnedProxy(slot.JSHandle);
}
string?message;
ToManaged(out message);
value = new JSException(message !, jsException);
}
public unsafe void ToManaged(out JSObject?value)
{
if (slot.Type == MarshalerType.None)
{
value = null;
return;
}
value = JavaScriptExports.CreateCSOwnedProxy(slot.JSHandle);
}