コード例 #1
0
        internal override Expression VisitConstant(ConstantExpression c)
        {
            string result;

            if (c.Value == null)
            {
                _builder.Append(UriHelper.NULL);
                return(c);
            }
            else if (!ClientConvert.TryKeyPrimitiveToString(c.Value, out result))
            {
                throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, SR.ALinqCouldNotConvert, c.Value));
            }

            Debug.Assert(result != null, "result != null");

            // A Difference from WCF Data Services is that we will escape later when we execute the fully parsed query.
            _builder.Append(result);
            return(c);
        }
コード例 #2
0
        internal static bool TryXmlPrimitiveToString(object value, out string result)
        {
            Debug.Assert(value != null, "value != null");

            Type valueType = value.GetType();

            valueType = Nullable.GetUnderlyingType(valueType) ?? valueType;

            if (typeof(string) == valueType)
            {
                result = (string)value;
            }
            else if (typeof(bool) == valueType)
            {
                result = XmlConvert.ToString((bool)value);
            }
            else if (typeof(byte) == valueType)
            {
                result = XmlConvert.ToString((byte)value);
            }
            else if (typeof(DateTime) == valueType)
            {
                result = XmlConvert.ToString((DateTime)value, XmlDateTimeSerializationMode.RoundtripKind);
            }
            else if (typeof(decimal) == valueType)
            {
                result = XmlConvert.ToString((decimal)value);
            }
            else if (typeof(double) == valueType)
            {
                result = XmlConvert.ToString((double)value);
            }
            else if (typeof(Guid) == valueType)
            {
                result = value.ToString();
            }
            else if (typeof(short) == valueType)
            {
                result = XmlConvert.ToString((short)value);
            }
            else if (typeof(int) == valueType)
            {
                result = XmlConvert.ToString((int)value);
            }
            else if (typeof(long) == valueType)
            {
                result = XmlConvert.ToString((long)value);
            }
            else if (typeof(sbyte) == valueType)
            {
                result = XmlConvert.ToString((sbyte)value);
            }
            else if (typeof(float) == valueType)
            {
                result = XmlConvert.ToString((float)value);
            }
            else if (typeof(byte[]) == valueType)
            {
                byte[] byteArray = (byte[])value;
                result = Convert.ToBase64String(byteArray);
            }
            else if (ClientConvert.IsBinaryValue(value))
            {
                return(ClientConvert.TryKeyBinaryToString(value, out result));
            }
            else if (typeof(System.Xml.Linq.XElement) == valueType)
            {
                result = ((System.Xml.Linq.XElement)value).ToString(System.Xml.Linq.SaveOptions.None);
            }
            else
            {
                result = null;
                return(false);
            }

            Debug.Assert(result != null, "result != null");
            return(true);
        }
コード例 #3
0
        private static int IndexOfStorage(Type type)
        {
            int index = ClientConvert.IndexOfReference(ClientConvert.s_knownTypes, type);

            return(index);
        }