/// <summary>
/// Processes the index - traverse thru array or sets path to undefined.
/// </summary>
/// <param name="parentIndex">Index of the parent.</param>
/// <param name="indexSegment">The index segment.</param>
/// <param name="visitor">The visitor to process scalar values.</param>
private void processIndex(MemoryIndex parentIndex, IndexPathSegment indexSegment, ProcessValueAsLocationVisitor visitor)
{
MemoryEntry entry;
if (snapshot.Data.TryGetMemoryEntry(parentIndex, out entry))
{
bool processOtherValues = false;
AssociativeArray arrayValue;
if (snapshot.Structure.TryGetArray(parentIndex, out arrayValue))
{
ArrayDescriptor descriptor = snapshot.Structure.GetDescriptor(arrayValue);
process(indexSegment, descriptor);
processOtherValues = entry.Count > 1;
}
else if (entry.Count > 0)
{
processOtherValues = true;
}
else
{
IsDefined = false;
}
if (processOtherValues)
{
visitor.ProcessValues(parentIndex, entry.PossibleValues, true);
}
}
else
{
IsDefined = false;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="IndexLocationVisitor"/> class.
/// </summary>
/// <param name="indexSegment">The index segment.</param>
/// <param name="assistant">The assistant.</param>
/// <param name="mustLocationProcess">The must location process.</param>
/// <param name="mayLocationProcess">The may location process.</param>
public IndexLocationVisitor(IndexPathSegment indexSegment, MemoryAssistantBase assistant, HashSet <ValueLocation> mustLocationProcess, HashSet <ValueLocation> mayLocationProcess)
: base(assistant)
{
this.indexSegment = indexSegment;
this.mustLocationProcess = mustLocationProcess;
this.mayLocationProcess = mayLocationProcess;
}
/// <summary>
/// Initializes a new instance of the <see cref="ReadIndexVisitor"/> class.
/// </summary>
/// <param name="containingIndex">Index of the containing.</param>
/// <param name="indexSegment">The index segment.</param>
/// <param name="locations">The locations.</param>
public ReadIndexVisitor(MemoryIndex containingIndex, IndexPathSegment indexSegment, ICollection <ValueLocation> locations)
{
this.containingIndex = containingIndex;
this.locations = locations;
ContainsUndefinedValue = false;
ContainsDefinedValue = false;
ContainsArrayValue = false;
ContainsAnyValue = false;
index = new MemberIdentifier(indexSegment.Names);
}
/// <summary>
/// Visits the index to continue traversing memory tree by array index.
/// </summary>
/// <param name="indexSegment">The index segment.</param>
public void VisitIndex(IndexPathSegment indexSegment)
{
IndexLocationVisitor visitor = new IndexLocationVisitor(indexSegment, this);
foreach (MemoryIndex parentIndex in mustIndexes)
{
processIndex(parentIndex, indexSegment, visitor);
}
foreach (ValueLocation parentLocation in mustLocation)
{
parentLocation.Accept(visitor);
}
}
/// <summary>
/// Visits the index to continue traversing memory tree by array index.
/// </summary>
/// <param name="segment">The segment.</param>
public void VisitIndex(IndexPathSegment segment)
{
IndexLocationVisitor visitor = new IndexLocationVisitor(segment, snapshot.MemoryAssistant, mustLocationProcess, mayLocationProcess);
visitor.IsMust = true;
foreach (MemoryIndex index in mustIndexes)
{
processIndex(segment, index, visitor, true);
}
foreach (ValueLocation location in mustLocation)
{
location.Accept(visitor);
}
visitor.IsMust = false;
foreach (MemoryIndex index in mayIndexes)
{
processIndex(segment, index, visitor, false);
}
foreach (ValueLocation location in mayLocation)
{
location.Accept(visitor);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="IndexLocationVisitor"/> class.
/// </summary>
/// <param name="indexSegment">The index segment.</param>
/// <param name="collector">The collector.</param>
public IndexLocationVisitor(IndexPathSegment indexSegment, ReadCollector collector)
: base(collector.snapshot.MemoryAssistant)
{
this.indexSegment = indexSegment;
this.collector = collector;
}
/// <summary>
/// Visits the index.
/// </summary>
/// <param name="indexSegment">The index segment.</param>
public void VisitIndex(IndexPathSegment indexSegment)
{
CreatedIndex = snapshot.CreateIndex(Name, ArrayValue, IsMust, true);
}