static IEnumerable <object> Unfold(IEnumerable <object> items)
{
return(items.SelectMany((item) =>
{
item = ASTExpr.ConvertAnythingIteratableToIterator(item);
if (item is Antlr.Runtime.JavaExtensions.Iterator)
{
return ((Antlr.Runtime.JavaExtensions.Iterator)item).Source.Cast <object>();
}
else if (item is string)
{
return Enumerable.Repeat(item, 1);
}
else if (item is IEnumerable)
{
return ((IEnumerable)item).Cast <object>();
}
else if (item is IEnumerator)
{
return Enumerable.Repeat(item, 1);
}
else
{
return Enumerable.Repeat(item, 1);
}
}));
}
static IEnumerable <object> Unfold(IEnumerable <object> items)
{
return(items.SelectMany((item) =>
{
item = ASTExpr.ConvertAnythingIteratableToIterator(item);
if (item is string)
{
return Enumerable.Repeat(item, 1);
}
else if (item is IEnumerable)
{
return ((IEnumerable)item).Cast <object>();
}
else if (item is IEnumerator)
{
return Enumerate((IEnumerator)item);
}
else
{
return Enumerable.Repeat(item, 1);
}
}));
}