public override IEnumerable <ConversationError <T> > Check(IEnumerable <T> nodes, IErrorCheckerUtilities <T> utils)
{
HashSet <UnorderedTuple2 <T> > results = new HashSet <UnorderedTuple2 <T> >();
foreach (var node in nodes)
{
foreach (var c in node.Data.Connectors)
{
foreach (var connection in c.Connections)
{
if (!c.Rules.CanConnect(c.Definition.Id, connection.Definition.Id))
{
results.Add(UnorderedTuple.Make(node, utils.ReverseLookup(connection.Parent)));
}
}
}
}
return(results.Select(r => new InvalidConnectionError(r)));
}
