static bool CrawlPointer(IntermediateCrawlData dataStack)
{
UnityEngine.Debug.Assert(dataStack.CrawlDataStack.Count > 0);
var snapshot = dataStack.CachedMemorySnapshot;
var typeDescriptions = snapshot.typeDescriptions;
var data = dataStack.CrawlDataStack.Pop();
var virtualMachineInformation = snapshot.virtualMachineInformation;
var managedHeapSections = snapshot.managedHeapSections;
var byteOffset = managedHeapSections.Find(data.ptr, virtualMachineInformation);
if (!byteOffset.IsValid)
{
return(false);
}
ManagedObjectInfo obj;
bool wasAlreadyCrawled;
obj = ParseObjectHeader(snapshot, data.ptr, out wasAlreadyCrawled, false);
++obj.RefCount;
snapshot.CrawledData.ManagedObjects[obj.ManagedObjectIndex] = obj;
snapshot.CrawledData.ManagedObjectByAddress[obj.PtrObject] = obj;
dataStack.ManagedConnections.Add(ManagedConnection.MakeConnection(snapshot, data.indexOfFrom, data.ptrFrom, obj.ManagedObjectIndex, data.ptr, data.typeFrom, data.fieldFrom, data.fromArrayIndex));
if (!obj.IsKnownType())
{
return(false);
}
if (wasAlreadyCrawled)
{
return(true);
}
if (!typeDescriptions.HasFlag(obj.ITypeDescription, TypeFlags.kArray))
{
CrawlRawObjectData(dataStack, byteOffset.Add(snapshot.virtualMachineInformation.objectHeaderSize), obj.ITypeDescription, false, data.ptr, obj.ManagedObjectIndex);
return(true);
}
var arrayLength = ArrayTools.ReadArrayLength(snapshot, data.ptr, obj.ITypeDescription);
int iElementTypeDescription = typeDescriptions.baseOrElementTypeIndex[obj.ITypeDescription];
if (iElementTypeDescription == -1)
{
return(false); //do not crawl uninitialized object types, as we currently don't have proper handling for these
}
var arrayData = byteOffset.Add(virtualMachineInformation.arrayHeaderSize);
for (int i = 0; i != arrayLength; i++)
{
if (typeDescriptions.HasFlag(iElementTypeDescription, TypeFlags.kValueType))
{
CrawlRawObjectData(dataStack, arrayData, iElementTypeDescription, false, data.ptr, obj.ManagedObjectIndex);
arrayData = arrayData.Add(typeDescriptions.size[iElementTypeDescription]);
}
else
{
dataStack.CrawlDataStack.Push(new StackCrawlData()
{
ptr = arrayData.ReadPointer(), ptrFrom = data.ptr, typeFrom = obj.ITypeDescription, indexOfFrom = obj.ManagedObjectIndex, fieldFrom = -1, fromArrayIndex = i
});
arrayData = arrayData.NextPointer();
}
}
return(true);
}
public bool IsGroupExpandable(ObjectData od, bool forceExpandAllObject = false)
{
switch (od.dataType)
{
case ObjectDataType.Array:
{
var l = ArrayTools.ReadArrayLength(Snapshot, od.hostManagedObjectPtr, od.managedTypeIndex);
return(l > 0 || forceExpandAllObject);
}
case ObjectDataType.ReferenceArray:
{
var ptr = od.GetReferencePointer();
if (ptr != 0)
{
var arr = ObjectData.FromManagedPointer(Snapshot, ptr);
var l = ArrayTools.ReadArrayLength(Snapshot, arr.hostManagedObjectPtr, arr.managedTypeIndex);
return(l > 0 || forceExpandAllObject);
}
return(false);
}
case ObjectDataType.ReferenceObject:
{
ulong ptr = od.GetReferencePointer();
if (ptr == 0)
{
return(false);
}
var obj = ObjectData.FromManagedPointer(Snapshot, ptr);
if (!obj.IsValid)
{
return(false);
}
if (forceExpandAllObject)
{
return(true);
}
if (!Formatter.IsExpandable(obj.managedTypeIndex))
{
return(false);
}
return(Snapshot.typeDescriptions.HasAnyField(obj.managedTypeIndex));
}
case ObjectDataType.BoxedValue:
case ObjectDataType.Object:
case ObjectDataType.Value:
if (forceExpandAllObject)
{
return(true);
}
if (!Formatter.IsExpandable(od.managedTypeIndex))
{
return(false);
}
return(Snapshot.typeDescriptions.HasAnyField(od.managedTypeIndex));
case ObjectDataType.Type:
if (!Formatter.IsExpandable(od.managedTypeIndex))
{
return(false);
}
if (Formatter.flattenFields)
{
return(Snapshot.typeDescriptions.HasAnyStaticField(od.managedTypeIndex));
}
else
{
return(Snapshot.typeDescriptions.HasStaticField(od.managedTypeIndex));
}
default:
return(false);
}
}