System.Xml.Xsl.IlGen.GenerateHelper.AddSortKey C# (CSharp) Method

        public void AddSortKey(XmlQueryType keyType)
        {
            MethodInfo meth = null;

            if (keyType == null)
            {
                meth = XmlILMethods.SortKeyEmpty;
            }
            else
            {
                Debug.Assert(keyType.IsAtomicValue, "Sort key must have atomic value type.");

                switch (keyType.TypeCode)
                {
                    case XmlTypeCode.String: meth = XmlILMethods.SortKeyString; break;
                    case XmlTypeCode.Decimal: meth = XmlILMethods.SortKeyDecimal; break;
                    case XmlTypeCode.Integer: meth = XmlILMethods.SortKeyInteger; break;
                    case XmlTypeCode.Int: meth = XmlILMethods.SortKeyInt; break;
                    case XmlTypeCode.Boolean: meth = XmlILMethods.SortKeyInt; break;
                    case XmlTypeCode.Double: meth = XmlILMethods.SortKeyDouble; break;
                    case XmlTypeCode.DateTime: meth = XmlILMethods.SortKeyDateTime; break;

                    case XmlTypeCode.None:
                        // Empty sequence, so this path will never actually be taken
                        Emit(OpCodes.Pop);
                        meth = XmlILMethods.SortKeyEmpty;
                        break;

                    case XmlTypeCode.AnyAtomicType:
                        Debug.Assert(false, "Heterogenous sort key is not allowed.");
                        return;

                    default:
                        Debug.Assert(false, "Sorting over datatype " + keyType.TypeCode + " is not allowed.");
                        break;
                }
            }

            Call(meth);
        }