public static MockProjectElementLinkRemoter ExportElement(this ProjectCollectionLinker exporter, ProjectElement xml)
{
if (xml == null)
{
return(null);
}
var implType = xml.GetType();
if (knownTypes.TryGetValue(implType, out var factory))
{
return(factory(exporter, xml));
}
factory = NotImplemented;
foreach (var t in canonicalTypes)
{
if (t.Checker(xml))
{
factory = t.ExportFactory;
break;
}
}
lock (knownTypes)
{
var newKnown = new Dictionary <Type, ExporterFactory>(knownTypes);
newKnown[implType] = factory;
knownTypes = newKnown;
}
return(factory(exporter, xml));
}