private Dictionary <string, TSMemberDescription> GetMembers(Members members, ref string enumerableType, string typename)
{
var membersList = members.Cast().ToList();
TSMemberDescription defaultProperty = null;
var ret = membersList.Where(x => !x.IsRestricted() && x.Name != "_NewEnum").ToLookup(x => x.Name).Select(grp => {
var memberKVP = KVP(grp.Key, GetMemberDescriptionForName(grp, typename));
var defaultMember = grp.Where(x => x.MemberId == 0).ToList();
if (!memberKVP.Value.IsProperty && defaultMember.Any())
{
if (grp.Count() != defaultMember.Count)
{
throw new Exception("Default and non-default properties on the same name");
}
if (defaultProperty != null)
{
throw new Exception("Multiple default properties in 'members'");
}
defaultProperty = memberKVP.Value;
}
return(memberKVP);
}).ToDictionary();
if (defaultProperty != null)
{
ret.Add("", defaultProperty);
}
var enumerableType1 = enumerableType; //because ref parameters cannot be used within lambda expressions
membersList.ToLookup(x => x.Name).IfContainsKey("_NewEnum", mi => {
ret.IfContainsKey("Item", itemMI => enumerableType1 = ((TSSimpleType)itemMI.ReturnType).FullName);
});
// there is an overload of EnumeratorConstructor that accepts anything with an Item member, and resolves the enumerator type to the return type of Item
var lookup = ret.WhereKVP((name, descr) => name == "Item").ToLookup(kvp => kvp.Value.ReturnType);
if (lookup.Count == 1)
{
enumerableType1 = null;
}
enumerableType = enumerableType1;
return(ret);
}