private static void AnalyseDuplications(ClrObject obj, ClrHeap heap)
{
if (obj.IsNull)
{
return;
}
if (obj.Type != heap.StringType)
{
return;
}
var asString = obj.AsString();
if (string.IsNullOrEmpty(asString))
{
return;
}
if (!DuplicatedInstances.ContainsKey(asString))
{
DuplicatedInstances.Add(asString, 1);
InstanceSize.Add(asString, obj.Size);
}
else
{
var duplicatedInstance = DuplicatedInstances[asString];
DuplicatedInstances[asString] = duplicatedInstance + 1;
}
}
public void StringEmptyTest()
{
using DataTarget dt = TestTargets.Types.LoadFullDump();
using ClrRuntime runtime = dt.ClrVersions.Single().CreateRuntime();
ClrType strType = runtime.Heap.StringType;
var statics = strType.StaticFields;
ulong valueSlot = Assert.Single(statics).GetAddress(runtime.AppDomains[0]);
Assert.NotEqual(0ul, valueSlot);
ulong address = dt.DataReader.ReadPointer(valueSlot);
Assert.NotEqual(0ul, address);
ClrObject obj = runtime.Heap.GetObject(address);
Assert.True(obj.Type.IsString);
string strValue = obj.AsString();
Assert.Equal("", strValue);
ClrSegment seg = runtime.Heap.GetSegmentByAddress(valueSlot);
Assert.NotNull(seg);
ulong prev = seg.GetPreviousObjectAddress(valueSlot);
Assert.NotEqual(0ul, prev);
ClrObject staticsArray = runtime.Heap.GetObject(prev);
Assert.True(staticsArray.IsValid);
Assert.True(staticsArray.IsArray);
}
public static string GetStringValue(this ClrObject clrObject, int maxLength = int.MaxValue)
{
return(clrObject.Type.IsString ? clrObject.AsString(maxLength) : null);
}