public override void VisitResultOperator(ResultOperatorBase resultOperator, QueryModel queryModel, int index)
{
TransformingVisitor.StringBuilder.Append(".");
switch (resultOperator)
{
case GroupResultOperator group:
TransformingVisitor.StringBuilder.Append("GroupBy(");
using (TransformingVisitor.StringBuilder.Indent())
{
TransformingVisitor.Visit(group.KeySelector);
TransformingVisitor.StringBuilder.Append(", ");
TransformingVisitor.Visit(group.ElementSelector);
TransformingVisitor.StringBuilder.Append(")");
}
break;
case CastResultOperator cast:
TransformingVisitor.StringBuilder.Append("Cast<" + cast.CastItemType.ShortDisplayName() + ">()");
break;
case OfTypeResultOperator ofType:
TransformingVisitor.StringBuilder.Append("OfType<" + ofType.SearchedItemType.ShortDisplayName() + ">()");
break;
default:
TransformingVisitor.StringBuilder.Append(resultOperator.ToString());
break;
}
}
public override void VisitJoinClause(JoinClause joinClause, QueryModel queryModel, GroupJoinClause groupJoinClause)
{
if (TransformingVisitor.GenerateUniqueQsreIds)
{
var i = TransformingVisitor.VisitedQuerySources.IndexOf(joinClause);
if (i == -1)
{
i = TransformingVisitor.VisitedQuerySources.Count;
TransformingVisitor.VisitedQuerySources.Add(joinClause);
}
TransformingVisitor.StringBuilder.Append($"join {joinClause.ItemType.ShortDisplayName()} {joinClause.ItemName}{{{i}}} in ");
}
else
{
TransformingVisitor.StringBuilder.Append($"join {joinClause.ItemType.ShortDisplayName()} {joinClause.ItemName} in ");
}
TransformingVisitor.Visit(joinClause.InnerSequence);
AppendLine();
TransformingVisitor.StringBuilder.Append("on ");
TransformingVisitor.Visit(joinClause.OuterKeySelector);
TransformingVisitor.StringBuilder.Append(" equals ");
TransformingVisitor.Visit(joinClause.InnerKeySelector);
}
public override void VisitJoinClause(JoinClause joinClause, QueryModel queryModel, GroupJoinClause groupJoinClause)
{
TransformingVisitor.StringBuilder.Append($"join {joinClause.ItemType.ShortDisplayName()} {joinClause.ItemName} in ");
TransformingVisitor.Visit(joinClause.InnerSequence);
AppendLine();
TransformingVisitor.StringBuilder.Append("on ");
TransformingVisitor.Visit(joinClause.OuterKeySelector);
TransformingVisitor.StringBuilder.Append(" equals ");
TransformingVisitor.Visit(joinClause.InnerKeySelector);
}
private void VisitJoinClauseInternal(JoinClause joinClause)
{
joinClause.InnerSequence = TransformingVisitor.Visit(joinClause.InnerSequence);
joinClause.OuterKeySelector = TransformingVisitor.Visit(joinClause.OuterKeySelector);
var oldInsideInnerKeySelector = InsideInnerKeySelector;
InsideInnerKeySelector = true;
joinClause.InnerKeySelector = TransformingVisitor.Visit(joinClause.InnerKeySelector);
if (joinClause.OuterKeySelector.Type.IsNullableType() &&
!joinClause.InnerKeySelector.Type.IsNullableType())
{
joinClause.InnerKeySelector = Expression.Convert(joinClause.InnerKeySelector, joinClause.InnerKeySelector.Type.MakeNullable());
}
if (joinClause.InnerKeySelector.Type.IsNullableType() &&
!joinClause.OuterKeySelector.Type.IsNullableType())
{
joinClause.OuterKeySelector = Expression.Convert(joinClause.OuterKeySelector, joinClause.OuterKeySelector.Type.MakeNullable());
}
InsideInnerKeySelector = oldInsideInnerKeySelector;
}
