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

        private TypeParameterType AddTypeParameterToSymbolTable(
                AggregateSymbol agg,
                MethodSymbol meth,
                Type t,
                bool bIsAggregate)
        {
            Debug.Assert((agg != null && bIsAggregate) || (meth != null && !bIsAggregate));

            TypeParameterSymbol typeParam;
            if (bIsAggregate)
            {
                typeParam = _symFactory.CreateClassTypeParameter(
                    GetName(t),
                    agg,
                    t.GenericParameterPosition,
                    t.GenericParameterPosition);
            }
            else
            {
                typeParam = _symFactory.CreateMethodTypeParameter(
                    GetName(t),
                    meth,
                    t.GenericParameterPosition,
                    t.GenericParameterPosition);
            }

            if ((t.GetTypeInfo().GenericParameterAttributes & GenericParameterAttributes.Covariant) != 0)
            {
                typeParam.Covariant = true;
            }
            if ((t.GetTypeInfo().GenericParameterAttributes & GenericParameterAttributes.Contravariant) != 0)
            {
                typeParam.Contravariant = true;
            }

            SpecCons cons = SpecCons.None;

            if ((t.GetTypeInfo().GenericParameterAttributes & GenericParameterAttributes.DefaultConstructorConstraint) != 0)
            {
                cons |= SpecCons.New;
            }
            if ((t.GetTypeInfo().GenericParameterAttributes & GenericParameterAttributes.ReferenceTypeConstraint) != 0)
            {
                cons |= SpecCons.Ref;
            }
            if ((t.GetTypeInfo().GenericParameterAttributes & GenericParameterAttributes.NotNullableValueTypeConstraint) != 0)
            {
                cons |= SpecCons.Val;
            }

            typeParam.SetConstraints(cons);
            typeParam.SetAccess(ACCESS.ACC_PUBLIC);
            TypeParameterType typeParamType = _typeManager.GetTypeParameter(typeParam);

            return typeParamType;
        }