コード例 #1
0
        private void Update(MemberInitExpression expression, ExpressionParameter parameter)
        {
            int i = 0;

            foreach (MemberBinding binding in expression.Bindings)
            {
                ++i;
                if (binding.BindingType != MemberBindingType.Assignment)
                {
                    throw new NotSupportedException();
                }
                MemberAssignment memberAssignment = (MemberAssignment)binding;
                var memberName = memberAssignment.Member.Name;
                var item       = memberAssignment.Expression;

                if (item is MethodCallExpression)
                {
                    base.Expression = item;
                    base.Start();
                    parameter.Context.Result.Append(base.Context.GetEqString(memberName, parameter.CommonTempData.ObjToString()));
                }
                else if (item is MemberExpression)
                {
                    if (base.Context.Result.IsLockCurrentParameter == false)
                    {
                        base.Context.Result.CurrentParameter       = parameter;
                        base.Context.Result.IsLockCurrentParameter = true;
                        parameter.IsAppendTempDate();
                        base.Expression = item;
                        base.Start();
                        parameter.IsAppendResult();
                        parameter.Context.Result.Append(base.Context.GetEqString(memberName, parameter.CommonTempData.ObjToString()));
                        base.Context.Result.CurrentParameter = null;
                    }
                }
                else if (item is BinaryExpression)
                {
                    var result = GetNewExpressionValue(item);
                    this.Context.Result.Append(base.Context.GetEqString(memberName, result));
                }
            }
        }
コード例 #2
0
 protected void ResolveNewExpressions(ExpressionParameter parameter, Expression item, string asName)
 {
     if (item is ConstantExpression)
     {
         this.Expression = item;
         this.Start();
         string parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
         this.Context.ParameterIndex++;
         parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
         this.Context.Parameters.Add(new Parameter(parameterName, parameter.CommonTempData));
     }
     else if ((item is MemberExpression) && ((MemberExpression)item).Expression == null)
     {
         var    paramterValue = ExpressionTool.GetPropertyValue(item as MemberExpression);
         string parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
         this.Context.ParameterIndex++;
         parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
         this.Context.Parameters.Add(new Parameter(parameterName, paramterValue));
     }
     else if ((item is MemberExpression) && ((MemberExpression)item).Expression.NodeType == ExpressionType.Constant)
     {
         this.Expression = item;
         this.Start();
         string parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
         this.Context.ParameterIndex++;
         parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
         this.Context.Parameters.Add(new Parameter(parameterName, parameter.CommonTempData));
     }
     else if (item is MemberExpression)
     {
         if (this.Context.Result.IsLockCurrentParameter == false)
         {
             this.Context.Result.CurrentParameter       = parameter;
             this.Context.Result.IsLockCurrentParameter = true;
             parameter.IsAppendTempDate();
             this.Expression = item;
             this.Start();
             parameter.IsAppendResult();
             this.Context.Result.Append(this.Context.GetAsString(asName, parameter.CommonTempData.ObjToString()));
             this.Context.Result.CurrentParameter = null;
         }
     }
     else if (item is UnaryExpression && ((UnaryExpression)item).Operand is MemberExpression)
     {
         if (this.Context.Result.IsLockCurrentParameter == false)
         {
             var expression = ((UnaryExpression)item).Operand as MemberExpression;
             if (expression.Expression == null)
             {
                 this.Context.Result.CurrentParameter       = parameter;
                 this.Context.Result.IsLockCurrentParameter = true;
                 parameter.IsAppendTempDate();
                 this.Expression = item;
                 this.Start();
                 parameter.IsAppendResult();
                 this.Context.Result.Append(this.Context.GetAsString(asName, parameter.CommonTempData.ObjToString()));
                 this.Context.Result.CurrentParameter = null;
             }
             else if (expression.Expression is ConstantExpression)
             {
                 string parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
                 this.Context.ParameterIndex++;
                 parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
                 this.Context.Parameters.Add(new Parameter(parameterName, ExpressionTool.GetMemberValue(expression.Member, expression)));
             }
             else
             {
                 this.Context.Result.CurrentParameter       = parameter;
                 this.Context.Result.IsLockCurrentParameter = true;
                 parameter.IsAppendTempDate();
                 this.Expression = item;
                 this.Start();
                 parameter.IsAppendResult();
                 this.Context.Result.Append(this.Context.GetAsString(asName, parameter.CommonTempData.ObjToString()));
                 this.Context.Result.CurrentParameter = null;
             }
         }
     }
     else if (item is UnaryExpression && ((UnaryExpression)item).Operand is ConstantExpression)
     {
         if (this.Context.Result.IsLockCurrentParameter == false)
         {
             this.Expression = ((UnaryExpression)item).Operand;
             this.Start();
             string parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
             this.Context.ParameterIndex++;
             parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
             this.Context.Parameters.Add(new Parameter(parameterName, parameter.CommonTempData));
         }
     }
     else if (item is BinaryExpression)
     {
         if (this.Context.Result.IsLockCurrentParameter == false)
         {
             var newContext         = this.Context.GetCopyContext();
             var resolveExpressType = this.Context.IsSingle ? ResolveExpressType.WhereSingle : ResolveExpressType.WhereMultiple;
             newContext.Resolve(item, resolveExpressType);
             this.Context.Index          = newContext.Index;
             this.Context.ParameterIndex = newContext.ParameterIndex;
             if (newContext.Parameters.IsValuable())
             {
                 this.Context.Parameters.AddRange(newContext.Parameters);
             }
             this.Context.Result.Append(this.Context.GetAsString(asName, newContext.Result.GetString()));
             this.Context.Result.CurrentParameter = null;
         }
     }
     else if (item.Type.IsClass())
     {
         this.Expression = item;
         this.Start();
         var shortName      = parameter.CommonTempData;
         var listProperties = item.Type.GetProperties().Cast <PropertyInfo>().ToList();
         foreach (var property in listProperties)
         {
             if (property.PropertyType.IsClass())
             {
             }
             else
             {
                 asName = this.Context.GetTranslationText(item.Type.Name + "." + property.Name);
                 var columnName = property.Name;
                 if (Context.IsJoin)
                 {
                     this.Context.Result.Append(Context.GetAsString(asName, columnName, shortName.ObjToString()));
                 }
                 else
                 {
                     this.Context.Result.Append(Context.GetAsString(asName, columnName));
                 }
             }
         }
     }
     else if (item is MethodCallExpression || item is UnaryExpression)
     {
         this.Expression = item;
         this.Start();
         parameter.Context.Result.Append(this.Context.GetAsString(asName, parameter.CommonTempData.ObjToString()));
     }
     else
     {
         // Check.ThrowNotSupportedException(item.GetType().Name);
     }
 }