private static IEnumerable <IMember> ValuesFromSequenceExpression(IEnumerable <Expression> items, ExpressionEval eval)
{
var members = new List <IMember>();
foreach (var item in items)
{
var value = eval.GetValueFromExpression(item);
switch (value)
{
case IPythonCollection coll:
members.AddRange(coll.Contents);
break;
default:
members.Add(value);
break;
}
}
return(members);
}
internal static void AssignTuple(TupleExpression lhs, TupleExpression rhs, ExpressionEval eval)
{
var returnedExpressions = rhs.Items.ToArray();
var names = lhs.Items.OfType <NameExpression>().Select(x => x.Name).ToArray();
for (var i = 0; i < names.Length; i++)
{
Expression e = null;
if (returnedExpressions.Length > 0)
{
e = i < returnedExpressions.Length ? returnedExpressions[i] : returnedExpressions[returnedExpressions.Length - 1];
}
if (e != null && !string.IsNullOrEmpty(names[i]))
{
var v = eval.GetValueFromExpression(e);
eval.DeclareVariable(names[i], v ?? eval.UnknownType, VariableSource.Declaration, e);
}
}
}