private static Exception FromPyErr(BorrowedReference typeRef, BorrowedReference valRef, BorrowedReference tbRef,
out ExceptionDispatchInfo?exceptionDispatchInfo)
{
if (valRef == null)
{
throw new ArgumentNullException(nameof(valRef));
}
var type = PyType.FromReference(typeRef);
var value = new PyObject(valRef);
var traceback = PyObject.FromNullableReference(tbRef);
exceptionDispatchInfo = TryGetDispatchInfo(valRef);
if (exceptionDispatchInfo != null)
{
return(exceptionDispatchInfo.SourceException);
}
if (ManagedType.GetManagedObject(valRef) is CLRObject {
inst : Exception e
})