public override async Task VisitRecursionQueryStepAsync(RecursionQueryStep rqs)
{
_writer.WriteStartObject();
_writer.WritePropertyName("Type");
_writer.WriteString("RecursionQueryStep");
_writer.WriteComma();
_writer.WritePropertyName("Left");
await VisitAsync(rqs.Left);
_writer.WriteComma();
_writer.WritePropertyName("Steps");
_writer.WriteStartArray();
var first = true;
foreach (var step in rqs.Steps)
{
if (first == false)
{
_writer.WriteComma();
}
first = false;
await VisitAsync(step.Right);
}
_writer.WriteEndArray();
_writer.WriteComma();
await VisitAsync(rqs.GetNextStep());
WriteIntermidiateResults(rqs.IntermediateResults);
_writer.WriteEndObject();
}
public virtual void VisitRecursionQueryStep(RecursionQueryStep rqs)
{
Visit(rqs.Left);
foreach (var step in rqs.Steps)
{
Visit(step.Right);
}
Visit(rqs.GetNextStep());
}
public virtual async Task VisitRecursionQueryStepAsync(RecursionQueryStep rqs)
{
await VisitAsync(rqs.Left);
foreach (var step in rqs.Steps)
{
await VisitAsync(step.Right);
}
await VisitAsync(rqs.GetNextStep());
}
public override IGraphQueryStep VisitRecursionQueryStep(RecursionQueryStep rqs)
{
_token.ThrowIfCancellationRequested();
var left = Visit(rqs.Left);
bool modified = ReferenceEquals(left, rqs.Left) == false;
var steps = new List <SingleEdgeMatcher>();
foreach (var step in rqs.Steps)
{
_isVisitingRight = true;
var right = Visit(step.Right);
_isVisitingRight = false;
if (ReferenceEquals(right, step.Right) == false)
{
modified = true;
steps.Add(new SingleEdgeMatcher(step, right, _documentsStorage.DocumentDatabase.IdentityPartsSeparator));
}
else
{
steps.Add(step);
}
}
var next = rqs.GetNextStep();
Visit(next);
if (modified == false)
{
return(rqs);
}
var result = new RecursionQueryStep(rqs, left, steps, _token);
if (next != null)
{
next.SetPrev(result);
result.SetNext(next);
result.SetAliases(rqs.GetAllAliases());
}
return(result);
}
public virtual IGraphQueryStep VisitRecursionQueryStep(RecursionQueryStep rqs)
{
_token.ThrowIfCancellationRequested();
var left = Visit(rqs.Left);
bool modified = ReferenceEquals(left, rqs.Left) == false;
var steps = new List <SingleEdgeMatcher>();
foreach (var step in rqs.Steps)
{
var right = Visit(step.Right);
if (ReferenceEquals(right, step.Right) == false)
{
modified = true;
steps.Add(new SingleEdgeMatcher(step, right));
}
else
{
steps.Add(step);
}
}
var next = rqs.GetNextStep();
if (next != null)
{
Visit(next);
}
if (modified)
{
return(new RecursionQueryStep(rqs, left, steps, _token));
}
return(rqs);
}