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