public static bool TryCreate(object baseEnumerator, out IEnumerable enumerator)
{
Debug.Assert(!(baseEnumerator is IEnumerable) || baseEnumerator is IPythonObject); // we shouldn't re-wrap things that don't need it
if (PythonOps.TryGetBoundAttr(baseEnumerator, "__iter__", out object iter))
{
object iterator = PythonCalls.Call(iter);
if (iterator is IEnumerable)
{
enumerator = (IEnumerable)iterator;
}
else
{
if (!PythonOps.TryGetBoundAttr(iterator, "__next__", out _))
{
enumerator = null;
return(false);
}
enumerator = new PythonEnumerable(iterator);
}
return(true);
}
else
{
enumerator = null;
return(false);
}
}
public static bool TryCreate(object baseEnumerator, out PythonEnumerable enumerator)
{
object iter;
if (Ops.TryGetAttr(baseEnumerator, SymbolTable.Iterator, out iter)) {
object iterator = Ops.Call(iter);
enumerator = new PythonEnumerable(iterator);
return true;
} else {
enumerator = null;
return false;
}
}
