Microsoft.CSharp.RuntimeBinder.Semantics.AggregateSymbol.InAlias C# (CSharp) Method

        public bool InAlias(KAID aid)
        {
            Debug.Assert(_infile != null);
            //Debug.Assert(DeclFirst() == null || DeclFirst().GetAssemblyID() == infile.GetAssemblyID());
            Debug.Assert(0 <= aid);
            if (aid < KAID.kaidMinModule)
                return _infile.InAlias(aid);
            return (aid == GetModuleID());
        }

        private AggregateSymbol FindPredefinedTypeCore(Name name, NamespaceOrAggregateSymbol bag, KAID aid, AggKindEnum aggKind, int arity,
                                                       out AggregateSymbol paggAmbig, out AggregateSymbol paggBad)
        {
            AggregateSymbol aggFound = null;

            paggAmbig = null;
            paggBad   = null;

            for (AggregateSymbol aggCur = _pBSymmgr.LookupGlobalSymCore(name, bag, symbmask_t.MASK_AggregateSymbol).AsAggregateSymbol();
                 aggCur != null;
                 aggCur = BSYMMGR.LookupNextSym(aggCur, bag, symbmask_t.MASK_AggregateSymbol).AsAggregateSymbol())
            {
                if (!aggCur.InAlias(aid) || aggCur.GetTypeVarsAll().size != arity)
                {
                    continue;
                }
                if (aggCur.AggKind() != aggKind)
                {
                    if (paggBad == null)
                    {
                        paggBad = aggCur;
                    }
                    continue;
                }
                if (aggFound != null)
                {
                    Debug.Assert(paggAmbig == null);
                    paggAmbig = aggCur;
                    break;
                }
                aggFound = aggCur;
                if (paggAmbig == null)
                {
                    break;
                }
            }

            return(aggFound);
        }