using FreeSql.Internal; using FreeSql.Internal.Model; using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Linq.Expressions; using System.Text; namespace FreeSql.Odbc.Default { class OdbcExpression : CommonExpression { OdbcUtils _utils; public OdbcExpression(CommonUtils common) : base(common) { _utils = common as OdbcUtils; } public override string ExpressionLambdaToSqlOther(Expression exp, ExpTSC tsc) { Func getExp = exparg => ExpressionLambdaToSql(exparg, tsc); switch (exp.NodeType) { case ExpressionType.Convert: var operandExp = (exp as UnaryExpression)?.Operand; var gentype = exp.Type.NullableTypeOrThis(); if (gentype != operandExp.Type.NullableTypeOrThis()) { switch (gentype.ToString()) { case "System.Boolean": return _utils.Adapter.LambdaConvert_ToBoolean(operandExp.Type, getExp(operandExp)); case "System.Byte": return _utils.Adapter.LambdaConvert_ToByte(operandExp.Type, getExp(operandExp)); case "System.Char": return _utils.Adapter.LambdaConvert_ToChar(operandExp.Type, getExp(operandExp)); case "System.DateTime": return _utils.Adapter.LambdaConvert_ToDateTime(operandExp.Type, getExp(operandExp)); case "System.Decimal": return _utils.Adapter.LambdaConvert_ToDecimal(operandExp.Type, getExp(operandExp)); case "System.Double": return _utils.Adapter.LambdaConvert_ToDouble(operandExp.Type, getExp(operandExp)); case "System.Int16": return _utils.Adapter.LambdaConvert_ToInt16(operandExp.Type, getExp(operandExp)); case "System.Int32": return _utils.Adapter.LambdaConvert_ToInt32(operandExp.Type, getExp(operandExp)); case "System.Int64": return _utils.Adapter.LambdaConvert_ToInt64(operandExp.Type, getExp(operandExp)); case "System.SByte": return _utils.Adapter.LambdaConvert_ToSByte(operandExp.Type, getExp(operandExp)); case "System.Single": return _utils.Adapter.LambdaConvert_ToSingle(operandExp.Type, getExp(operandExp)); case "System.String": return _utils.Adapter.LambdaConvert_ToString(operandExp.Type, getExp(operandExp)); case "System.UInt16": return _utils.Adapter.LambdaConvert_ToUInt16(operandExp.Type, getExp(operandExp)); case "System.UInt32": return _utils.Adapter.LambdaConvert_ToUInt32(operandExp.Type, getExp(operandExp)); case "System.UInt64": return _utils.Adapter.LambdaConvert_ToUInt64(operandExp.Type, getExp(operandExp)); case "System.Guid": return _utils.Adapter.LambdaConvert_ToGuid(operandExp.Type, getExp(operandExp)); } } break; case ExpressionType.Call: var callExp = exp as MethodCallExpression; switch (callExp.Method.Name) { case "Parse": case "TryParse": switch (callExp.Method.DeclaringType.NullableTypeOrThis().ToString()) { case "System.Boolean": return _utils.Adapter.LambdaConvert_ToBoolean(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.Byte": return _utils.Adapter.LambdaConvert_ToByte(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.Char": return _utils.Adapter.LambdaConvert_ToChar(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.DateTime": return _utils.Adapter.LambdaConvert_ToDateTime(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.Decimal": return _utils.Adapter.LambdaConvert_ToDecimal(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.Double": return _utils.Adapter.LambdaConvert_ToDouble(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.Int16": return _utils.Adapter.LambdaConvert_ToInt16(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.Int32": return _utils.Adapter.LambdaConvert_ToInt32(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.Int64": return _utils.Adapter.LambdaConvert_ToInt64(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.SByte": return _utils.Adapter.LambdaConvert_ToSByte(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.Single": return _utils.Adapter.LambdaConvert_ToSingle(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.UInt16": return _utils.Adapter.LambdaConvert_ToUInt16(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.UInt32": return _utils.Adapter.LambdaConvert_ToUInt32(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.UInt64": return _utils.Adapter.LambdaConvert_ToUInt64(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); case "System.Guid": return _utils.Adapter.LambdaConvert_ToGuid(callExp.Method.DeclaringType, getExp(callExp.Arguments[0])); } return null; case "NewGuid": switch (callExp.Method.DeclaringType.NullableTypeOrThis().ToString()) { case "System.Guid": return _utils.Adapter.LambdaGuid_NewGuid; } return null; case "Next": if (callExp.Object?.Type == typeof(Random)) return _utils.Adapter.LambdaRandom_Next; return null; case "NextDouble": if (callExp.Object?.Type == typeof(Random)) return _utils.Adapter.LambdaRandom_NextDouble; return null; case "Random": if (callExp.Method.DeclaringType.IsNumberType()) return _utils.Adapter.LambdaRandom_NextDouble; return null; case "ToString": if (callExp.Object != null) { if (callExp.Object.Type.NullableTypeOrThis().IsEnum) { tsc.SetMapColumnTmp(null); var oldMapType = tsc.SetMapTypeReturnOld(typeof(string)); var enumStr = ExpressionLambdaToSql(callExp.Object, tsc); tsc.SetMapColumnTmp(null).SetMapTypeReturnOld(oldMapType); return enumStr; } var value = ExpressionGetValue(callExp.Object, out var success); if (success) return formatSql(value, typeof(string), null, null); return callExp.Arguments.Count == 0 ? _utils.Adapter.LambdaConvert_ToString(callExp.Object.Type, getExp(callExp.Object)) : null; } return null; } var objExp = callExp.Object; var objType = objExp?.Type; if (objType?.FullName == "System.Byte[]") return null; var argIndex = 0; if (objType == null && callExp.Method.DeclaringType == typeof(Enumerable)) { objExp = callExp.Arguments.FirstOrDefault(); objType = objExp?.Type; argIndex++; if (objType == typeof(string)) { switch (callExp.Method.Name) { case "First": case "FirstOrDefault": return _utils.Adapter.LambdaString_Substring(getExp(callExp.Arguments[0]), "1", "1"); } } } if (objType == null) objType = callExp.Method.DeclaringType; if (objType != null || objType.IsArrayOrList()) { if (argIndex >= callExp.Arguments.Count) break; tsc.SetMapColumnTmp(null); var args1 = getExp(callExp.Arguments[argIndex]); var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp); var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug tsc.isNotSetMapColumnTmp = true; var left = objExp == null ? null : getExp(objExp); tsc.isNotSetMapColumnTmp = false; tsc.SetMapColumnTmp(null).SetMapTypeReturnOld(oldMapType); if (oldDbParams != null) tsc.SetDbParamsReturnOld(oldDbParams); switch (callExp.Method.Name) { case "Contains": //判断 in //在各大 Provider AdoProvider 中已约定，500元素分割, 3空格\r\n4空格 return $"(({args1}) in {left.Replace(", \r\n \r\n", $") \r\n OR ({args1}) in (")})"; } } break; case ExpressionType.NewArrayInit: var arrExp = exp as NewArrayExpression; var arrSb = new StringBuilder(); arrSb.Append("("); for (var a = 0; a < arrExp.Expressions.Count; a++) { if (a > 0) arrSb.Append(","); if (a % 500 == 499) arrSb.Append(" \r\n \r\n"); //500元素分割, 3空格\r\n4空格 arrSb.Append(getExp(arrExp.Expressions[a])); } if (arrSb.Length == 1) arrSb.Append("NULL"); return arrSb.Append(")").ToString(); case ExpressionType.ListInit: var listExp = exp as ListInitExpression; var listSb = new StringBuilder(); listSb.Append("("); for (var a = 0; a < listExp.Initializers.Count; a++) { if (listExp.Initializers[a].Arguments.Any() == false) continue; if (a > 0) listSb.Append(","); listSb.Append(getExp(listExp.Initializers[a].Arguments.FirstOrDefault())); } if (listSb.Length == 1) listSb.Append("NULL"); return listSb.Append(")").ToString(); case ExpressionType.New: var newExp = exp as NewExpression; if (typeof(IList).IsAssignableFrom(newExp.Type)) { if (newExp.Arguments.Count == 0) return "(NULL)"; if (typeof(IEnumerable).IsAssignableFrom(newExp.Arguments[0].Type) == false) return "(NULL)"; return getExp(newExp.Arguments[0]); } return null; } return null; } public override string ExpressionLambdaToSqlMemberAccessString(MemberExpression exp, ExpTSC tsc) { if (exp.Expression == null) { switch (exp.Member.Name) { case "Empty": return "''"; } return null; } var left = ExpressionLambdaToSql(exp.Expression, tsc); switch (exp.Member.Name) { case "Length": return _utils.Adapter.LambdaString_Length(left); } return null; } public override string ExpressionLambdaToSqlMemberAccessDateTime(MemberExpression exp, ExpTSC tsc) { if (exp.Expression == null) { switch (exp.Member.Name) { case "Now": return _utils.Adapter.LambdaDateTime_Now; case "UtcNow": return _utils.Adapter.LambdaDateTime_UtcNow; case "Today": return _utils.Adapter.LambdaDateTime_Today; case "MinValue": return _utils.Adapter.LambdaDateTime_MinValue; case "MaxValue": return _utils.Adapter.LambdaDateTime_MaxValue; } return null; } var left = ExpressionLambdaToSql(exp.Expression, tsc); switch (exp.Member.Name) { case "Date": return _utils.Adapter.LambdaDateTime_Date(left); case "TimeOfDay": return _utils.Adapter.LambdaDateTime_TimeOfDay(left); case "DayOfWeek": return _utils.Adapter.LambdaDateTime_DayOfWeek(left); case "Day": return _utils.Adapter.LambdaDateTime_Day(left); case "DayOfYear": return _utils.Adapter.LambdaDateTime_DayOfYear(left); case "Month": return _utils.Adapter.LambdaDateTime_Month(left); case "Year": return _utils.Adapter.LambdaDateTime_Year(left); case "Hour": return _utils.Adapter.LambdaDateTime_Hour(left); case "Minute": return _utils.Adapter.LambdaDateTime_Minute(left); case "Second": return _utils.Adapter.LambdaDateTime_Second(left); case "Millisecond": return _utils.Adapter.LambdaDateTime_Millisecond(left); case "Ticks": return _utils.Adapter.LambdaDateTime_Ticks(left); } return null; } public override string ExpressionLambdaToSqlMemberAccessTimeSpan(MemberExpression exp, ExpTSC tsc) { if (exp.Expression == null) { switch (exp.Member.Name) { case "Zero": return "0"; case "MinValue": return "-922337203685477580"; //微秒 Ticks / 10 case "MaxValue": return "922337203685477580"; } return null; } var left = ExpressionLambdaToSql(exp.Expression, tsc); switch (exp.Member.Name) { case "Days": return _utils.Adapter.LambdaMath_Floor($"({left})/{60 * 60 * 24}"); case "Hours": return _utils.Adapter.LambdaMath_Floor($"({left})/{60 * 60}%24"); case "Milliseconds": return $"({_utils.Adapter.CastSql(left, _utils.Adapter.MappingOdbcTypeBigInt)}*1000)"; case "Minutes": return _utils.Adapter.LambdaMath_Floor($"({left})/60%60"); case "Seconds": return $"(({left})%60)"; case "Ticks": return $"({_utils.Adapter.CastSql(left, _utils.Adapter.MappingOdbcTypeBigInt)}*10000000)"; case "TotalDays": return $"(({left})/{60 * 60 * 24})"; case "TotalHours": return $"(({left})/{60 * 60})"; case "TotalMilliseconds": return $"({_utils.Adapter.CastSql(left, _utils.Adapter.MappingOdbcTypeBigInt)}*1000)"; case "TotalMinutes": return $"(({left})/60)"; case "TotalSeconds": return $"({left})"; } return null; } public override string ExpressionLambdaToSqlCallString(MethodCallExpression exp, ExpTSC tsc) { Func getExp = exparg => ExpressionLambdaToSql(exparg, tsc); if (exp.Object == null) { switch (exp.Method.Name) { case "IsNullOrEmpty": return _utils.Adapter.LambdaString_IsNullOrEmpty(getExp(exp.Arguments[0])); case "IsNullOrWhiteSpace": return _utils.Adapter.LambdaString_IsNullOrWhiteSpace(getExp(exp.Arguments[0])); case "Concat": if (exp.Arguments.Count == 1 && exp.Arguments[0].NodeType == ExpressionType.NewArrayInit && exp.Arguments[0] is NewArrayExpression concatNewArrExp) return _common.StringConcat(concatNewArrExp.Expressions.Select(a => getExp(a)).ToArray(), concatNewArrExp.Expressions.Select(a => a.Type).ToArray()); return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), exp.Arguments.Select(a => a.Type).ToArray()); } } else { var left = getExp(exp.Object); switch (exp.Method.Name) { case "StartsWith": case "EndsWith": case "Contains": var args0Value = getExp(exp.Arguments[0]); if (args0Value == "NULL") return $"({left}) IS NULL"; if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"({_common.StringConcat(new string[] { args0Value, "'%'" }, new[] { typeof(int), typeof(string) })})")}"; if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"({_common.StringConcat(new string[] { "'%'", args0Value }, new[] { typeof(string), typeof(int) })})")}"; if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}"; return $"({left}) LIKE ({_common.StringConcat(new string[] { "'%'", args0Value, "'%'" }, new[] { typeof(string), typeof(int), typeof(string)})})"; case "ToLower": return _utils.Adapter.LambdaString_ToLower(left); case "ToUpper": return _utils.Adapter.LambdaString_ToUpper(left); case "Substring": var substrArgs1 = getExp(exp.Arguments[0]); if (long.TryParse(substrArgs1, out var testtrylng1)) substrArgs1 = (testtrylng1 + 1).ToString(); else substrArgs1 += "+1"; if (exp.Arguments.Count == 1) return _utils.Adapter.LambdaString_Substring(left, substrArgs1, null); return _utils.Adapter.LambdaString_Substring(left, substrArgs1, getExp(exp.Arguments[1])); case "IndexOf": var indexOfFindStr = getExp(exp.Arguments[0]); if (exp.Arguments.Count > 1 && exp.Arguments[1].Type.FullName == "System.Int32") { var locateArgs1 = getExp(exp.Arguments[1]); if (long.TryParse(locateArgs1, out var testtrylng2)) locateArgs1 = (testtrylng2 + 1).ToString(); else locateArgs1 += "+1"; return _utils.Adapter.LambdaString_IndexOf(left, indexOfFindStr, locateArgs1); } return _utils.Adapter.LambdaString_IndexOf(left, indexOfFindStr, null); case "PadLeft": if (exp.Arguments.Count == 1) return _utils.Adapter.LambdaString_PadLeft(left, getExp(exp.Arguments[0]), null); return _utils.Adapter.LambdaString_PadLeft(left, getExp(exp.Arguments[0]), getExp(exp.Arguments[1])); case "PadRight": if (exp.Arguments.Count == 1) return _utils.Adapter.LambdaString_PadRight(left, getExp(exp.Arguments[0]), null); return _utils.Adapter.LambdaString_PadRight(left, getExp(exp.Arguments[0]), getExp(exp.Arguments[1])); case "Trim": return _utils.Adapter.LambdaString_Trim(left); case "TrimStart": return _utils.Adapter.LambdaString_TrimStart(left); case "TrimEnd": return _utils.Adapter.LambdaString_TrimEnd(left); case "Replace": return _utils.Adapter.LambdaString_Replace(left, getExp(exp.Arguments[0]), getExp(exp.Arguments[1])); case "CompareTo": return _utils.Adapter.LambdaString_CompareTo(left, getExp(exp.Arguments[0])); case "Equals": return _utils.Adapter.LambdaString_Equals(left, getExp(exp.Arguments[0])); } } return null; } public override string ExpressionLambdaToSqlCallMath(MethodCallExpression exp, ExpTSC tsc) { Func getExp = exparg => ExpressionLambdaToSql(exparg, tsc); switch (exp.Method.Name) { case "Abs": return _utils.Adapter.LambdaMath_Abs(getExp(exp.Arguments[0])); case "Sign": return _utils.Adapter.LambdaMath_Sign(getExp(exp.Arguments[0])); case "Floor": return _utils.Adapter.LambdaMath_Floor(getExp(exp.Arguments[0])); case "Ceiling": return _utils.Adapter.LambdaMath_Ceiling(getExp(exp.Arguments[0])); case "Round": if (exp.Arguments.Count > 1 && exp.Arguments[1].Type.FullName == "System.Int32") return _utils.Adapter.LambdaMath_Round(getExp(exp.Arguments[0]), getExp(exp.Arguments[1])); return _utils.Adapter.LambdaMath_Round(getExp(exp.Arguments[0]), "0"); case "Exp": return _utils.Adapter.LambdaMath_Exp(getExp(exp.Arguments[0])); case "Log": return _utils.Adapter.LambdaMath_Log(getExp(exp.Arguments[0])); case "Log10": return _utils.Adapter.LambdaMath_Log10(getExp(exp.Arguments[0])); case "Pow": return _utils.Adapter.LambdaMath_Pow(getExp(exp.Arguments[0]), getExp(exp.Arguments[1])); case "Sqrt": return _utils.Adapter.LambdaMath_Sqrt(getExp(exp.Arguments[0])); case "Cos": return _utils.Adapter.LambdaMath_Cos(getExp(exp.Arguments[0])); case "Sin": return _utils.Adapter.LambdaMath_Sin(getExp(exp.Arguments[0])); case "Tan": return _utils.Adapter.LambdaMath_Tan(getExp(exp.Arguments[0])); case "Acos": return _utils.Adapter.LambdaMath_Acos(getExp(exp.Arguments[0])); case "Asin": return _utils.Adapter.LambdaMath_Asin(getExp(exp.Arguments[0])); case "Atan": return _utils.Adapter.LambdaMath_Atan(getExp(exp.Arguments[0])); case "Atan2": return _utils.Adapter.LambdaMath_Atan2(getExp(exp.Arguments[0]), getExp(exp.Arguments[1])); case "Truncate": return _utils.Adapter.LambdaMath_Truncate(getExp(exp.Arguments[0])); } return null; } public override string ExpressionLambdaToSqlCallDateTime(MethodCallExpression exp, ExpTSC tsc) { Func getExp = exparg => ExpressionLambdaToSql(exparg, tsc); if (exp.Object == null) { switch (exp.Method.Name) { case "Compare": return _utils.Adapter.LambdaDateTime_CompareTo(getExp(exp.Arguments[0]), getExp(exp.Arguments[1])); case "DaysInMonth": return _utils.Adapter.LambdaDateTime_DaysInMonth(getExp(exp.Arguments[0]), getExp(exp.Arguments[1])); case "Equals": return _utils.Adapter.LambdaDateTime_Equals(getExp(exp.Arguments[0]), getExp(exp.Arguments[1])); case "IsLeapYear": return _utils.Adapter.LambdaDateTime_IsLeapYear(getExp(exp.Arguments[0])); case "Parse": return _utils.Adapter.LambdaConvert_ToDateTime(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ParseExact": case "TryParse": case "TryParseExact": return _utils.Adapter.LambdaConvert_ToDateTime(exp.Arguments[0].Type, getExp(exp.Arguments[0])); } } else { var left = getExp(exp.Object); var args1 = exp.Arguments.Count == 0 ? null : getExp(exp.Arguments[0]); switch (exp.Method.Name) { case "Add": return _utils.Adapter.LambdaDateTime_Add(left, args1); case "AddDays": return _utils.Adapter.LambdaDateTime_AddDays(left, args1); case "AddHours": return _utils.Adapter.LambdaDateTime_AddHours(left, args1); case "AddMilliseconds": return _utils.Adapter.LambdaDateTime_AddMilliseconds(left, args1); case "AddMinutes": return _utils.Adapter.LambdaDateTime_AddMinutes(left, args1); case "AddMonths": return _utils.Adapter.LambdaDateTime_AddMonths(left, args1); case "AddSeconds": return _utils.Adapter.LambdaDateTime_AddSeconds(left, args1); case "AddTicks": return _utils.Adapter.LambdaDateTime_AddTicks(left, args1); case "AddYears": return _utils.Adapter.LambdaDateTime_AddYears(left, args1); case "Subtract": switch ((exp.Arguments[0].Type.IsNullableType() ? exp.Arguments[0].Type.GetGenericArguments().FirstOrDefault() : exp.Arguments[0].Type).FullName) { case "System.DateTime": return _utils.Adapter.LambdaDateTime_Subtract(left, args1); case "System.TimeSpan": return _utils.Adapter.LambdaDateTime_SubtractTimeSpan(left, args1); } break; case "Equals": return _utils.Adapter.LambdaDateTime_Equals(left, args1); case "CompareTo": return _utils.Adapter.LambdaDateTime_CompareTo(left, args1); case "ToString": return exp.Arguments.Count == 0 ? _utils.Adapter.LambdaDateTime_ToString(left) : null; } } return null; } public virtual string LambdaDateSpan_Add(string operand, string value) => $"({operand}+{value})"; public virtual string LambdaDateSpan_Subtract(string operand, string value) => $"({operand}-({value}))"; public virtual string LambdaDateSpan_Equals(string oldvalue, string newvalue) => $"({oldvalue} = {newvalue})"; public virtual string LambdaDateSpan_CompareTo(string oldvalue, string newvalue) => $"({oldvalue}-({newvalue}))"; public override string ExpressionLambdaToSqlCallTimeSpan(MethodCallExpression exp, ExpTSC tsc) { Func getExp = exparg => ExpressionLambdaToSql(exparg, tsc); if (exp.Object == null) { switch (exp.Method.Name) { case "Compare": return $"({getExp(exp.Arguments[0])}-({getExp(exp.Arguments[1])}))"; case "Equals": return $"({getExp(exp.Arguments[0])} = {getExp(exp.Arguments[1])})"; case "FromDays": return $"(({getExp(exp.Arguments[0])})*{60 * 60 * 24})"; case "FromHours": return $"(({getExp(exp.Arguments[0])})*{60 * 60})"; case "FromMilliseconds": return $"(({getExp(exp.Arguments[0])})/1000)"; case "FromMinutes": return $"(({getExp(exp.Arguments[0])})*60)"; case "FromSeconds": return $"({getExp(exp.Arguments[0])})"; case "FromTicks": return $"(({getExp(exp.Arguments[0])})/10000000)"; case "Parse": return _utils.Adapter.LambdaConvert_ToInt64(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ParseExact": case "TryParse": case "TryParseExact": return _utils.Adapter.LambdaConvert_ToInt64(exp.Arguments[0].Type, getExp(exp.Arguments[0])); } } else { var left = getExp(exp.Object); var args1 = exp.Arguments.Count == 0 ? null : getExp(exp.Arguments[0]); switch (exp.Method.Name) { case "Add": return $"({left}+{args1})"; case "Subtract": return $"({left}-({args1}))"; case "Equals": return $"({left} = {args1})"; case "CompareTo": return $"({left}-({args1}))"; case "ToString": return _utils.Adapter.LambdaConvert_ToString(exp.Type, left); } } return null; } public override string ExpressionLambdaToSqlCallConvert(MethodCallExpression exp, ExpTSC tsc) { Func getExp = exparg => ExpressionLambdaToSql(exparg, tsc); if (exp.Object == null) { switch (exp.Method.Name) { case "ToBoolean": return _utils.Adapter.LambdaConvert_ToBoolean(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToByte": return _utils.Adapter.LambdaConvert_ToByte(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToChar": return _utils.Adapter.LambdaConvert_ToChar(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToDateTime": return _utils.Adapter.LambdaConvert_ToDateTime(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToDecimal": return _utils.Adapter.LambdaConvert_ToDecimal(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToDouble": return _utils.Adapter.LambdaConvert_ToDouble(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToInt16": return _utils.Adapter.LambdaConvert_ToInt16(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToInt32": return _utils.Adapter.LambdaConvert_ToInt32(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToInt64": return _utils.Adapter.LambdaConvert_ToInt64(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToSByte": return _utils.Adapter.LambdaConvert_ToSByte(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToSingle": return _utils.Adapter.LambdaConvert_ToSingle(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToString": return _utils.Adapter.LambdaConvert_ToString(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToUInt16": return _utils.Adapter.LambdaConvert_ToUInt16(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToUInt32": return _utils.Adapter.LambdaConvert_ToUInt32(exp.Arguments[0].Type, getExp(exp.Arguments[0])); case "ToUInt64": return _utils.Adapter.LambdaConvert_ToUInt64(exp.Arguments[0].Type, getExp(exp.Arguments[0])); } } return null; } } }