Microsoft.CSharp.RuntimeBinder.SymbolTable.ProcessSpecialTypeInChain C# (CSharp) Method

        private CType ProcessSpecialTypeInChain(NamespaceOrAggregateSymbol parent, Type t)
        {
            CType ctype;
            if (t.IsGenericParameter)
            {
                AggregateSymbol agg = parent as AggregateSymbol;
                Debug.Assert(agg != null);
                ctype = LoadClassTypeParameter(agg, t);
                return ctype;
            }
            else if (t.IsArray)
            {
                // Now we return an array of nesting level corresponding to the rank.
                ctype = _typeManager.GetArray(GetCTypeFromType(t.GetElementType()), t.GetArrayRank());
                return ctype;
            }
            else if (t.IsPointer)
            {
                // Now we return the pointer type that we want.
                ctype = _typeManager.GetPointer(GetCTypeFromType(t.GetElementType()));
                return ctype;
            }
            else if (t.IsNullableType())
            {
                // Get a nullable type of the underlying type.
                if (t.GetGenericArguments()[0].DeclaringType == t)
                {
                    // If the generic argument for nullable is our child, then we're 
                    // declaring the initial Nullable<T>.
                    AggregateSymbol agg = _symbolTable.LookupSym(
                        GetName(t), parent, symbmask_t.MASK_AggregateSymbol).AsAggregateSymbol();
                    if (agg != null)
                    {
                        agg = FindSymWithMatchingArity(agg, t);
                        if (agg != null)
                        {
                            Debug.Assert(agg.getThisType().AssociatedSystemType == t);
                            return agg.getThisType();
                        }
                    }
                    return AddAggregateToSymbolTable(parent, t).getThisType();
                }
                ctype = _typeManager.GetNullable(GetCTypeFromType(t.GetGenericArguments()[0]));
                return ctype;
            }
            return null;
        }