private void ResolveHasValue(ExpressionParameter parameter, MemberExpression expression)
{
parameter.CommonTempData = CommonTempDataType.Result;
this.Expression = expression.Expression;
this.Start();
var methodParamter = new MethodCallExpressionArgs()
{
IsMember = true, MemberName = parameter.CommonTempData, MemberValue = null
};
if (expression.Expression?.Type != null)
{
methodParamter.Type = UtilMethods.GetUnderType(expression.Expression?.Type);
}
var result = this.Context.DbMehtods.HasValue(new MethodCallExpressionModel()
{
Args = new List <MethodCallExpressionArgs>()
{
methodParamter
}
});
if (parameter.BaseExpression != null && ExpressionTool.IsLogicOperator(parameter.BaseExpression) && parameter.IsLeft == true)
{
if (base.Context.Result.Contains(ExpressionConst.FormatSymbol))
{
base.Context.Result.Replace(ExpressionConst.FormatSymbol, "");
}
this.Context.Result.Append(result + " " + ExpressionTool.GetOperator(parameter.BaseExpression.NodeType) + " ");
}
else
{
this.Context.Result.Append(result);
}
parameter.CommonTempData = null;
}
public BinaryExpressionResolve(ExpressionParameter parameter) : base(parameter)
{
var expression = this.Expression as BinaryExpression;
var operatorValue = parameter.OperatorValue = ExpressionTool.GetOperator(expression.NodeType);
var isEqual = expression.NodeType == ExpressionType.Equal;
var isComparisonOperator = ExpressionTool.IsComparisonOperator(expression);
base.ExactExpression = expression;
var leftExpression = expression.Left;
var rightExpression = expression.Right;
var leftIsBinary = leftExpression is BinaryExpression;
var rightBinary = rightExpression is BinaryExpression;
var lbrs = leftIsBinary && !rightBinary;
var lsrb = !leftIsBinary && rightBinary;
var lbrb = rightBinary && leftIsBinary;
var lsbs = !leftIsBinary && !rightBinary;
var isAppend = !base.Context.Result.Contains(ExpressionConst.FormatSymbol);
if (isAppend)
{
base.Context.Result.Append(ExpressionConst.LeftParenthesis);
base.Context.Result.Append(ExpressionConst.FormatSymbol);
}
else
{
base.Context.Result.Replace(ExpressionConst.FormatSymbol, ExpressionConst.LeftParenthesis + ExpressionConst.FormatSymbol);
}
if (leftExpression is UnaryExpression && (leftExpression as UnaryExpression).Operand is UnaryExpression && (leftExpression as UnaryExpression).NodeType == ExpressionType.Convert)
{
leftExpression = (leftExpression as UnaryExpression).Operand;
}
if (leftExpression is UnaryExpression && (leftExpression as UnaryExpression).Operand.Type == UtilConstants.BoolType && (leftExpression as UnaryExpression).NodeType == ExpressionType.Convert && rightExpression.Type == UtilConstants.BoolTypeNull)
{
leftExpression = (leftExpression as UnaryExpression).Operand;
}
if (rightExpression is UnaryExpression && (rightExpression as UnaryExpression).Operand.Type == UtilConstants.BoolType && (rightExpression as UnaryExpression).NodeType == ExpressionType.Convert)
{
rightExpression = (rightExpression as UnaryExpression).Operand;
}
parameter.LeftExpression = leftExpression;
parameter.RightExpression = rightExpression;
base.Expression = leftExpression;
base.IsLeft = true;
base.Start();
if (leftExpression is UnaryExpression && leftExpression.Type == UtilConstants.BoolType && !this.Context.Result.Contains(ExpressionConst.ExpressionReplace))
{
this.Context.Result.AppendFormat(" {0} ", ExpressionTool.GetOperator(expression.NodeType));
}
base.IsLeft = false;
base.Expression = rightExpression;
base.Start();
base.IsLeft = null;
if (lsbs && parameter.ValueIsNull)
{
base.Context.Result.Replace(ExpressionConst.ExpressionReplace + parameter.Index, isEqual ? "IS" : "IS NOT");
base.Context.Result.Replace(ExpressionConst.ExpressionReplace + (parameter.Index + 1), isEqual ? "IS" : "IS NOT");
}
else
{
base.Context.Result.Replace(ExpressionConst.ExpressionReplace + parameter.Index, operatorValue);
base.Context.Result.Replace(ExpressionConst.ExpressionReplace + (parameter.Index + 1), operatorValue);
}
base.Context.Result.Append(ExpressionConst.RightParenthesis);
if (parameter.BaseExpression is BinaryExpression && parameter.IsLeft == true)
{
base.Context.Result.Append(" " + ExpressionConst.ExpressionReplace + parameter.BaseParameter.Index + " ");
}
}
