public void GetObjectMethodTableTest()
{
using (DataTarget dt = TestTargets.AppDomains.LoadFullDump())
{
ClrRuntime runtime = dt.ClrVersions.Single().CreateRuntime();
ClrHeap heap = runtime.Heap;
int i = 0;
foreach (ulong obj in heap.EnumerateObjectAddresses())
{
i++;
ClrType type = heap.GetObjectType(obj);
if (type.IsArray)
{
ulong mt, cmt;
bool result = heap.TryGetMethodTable(obj, out mt, out cmt);
Assert.True(result);
Assert.NotEqual(0ul, mt);
Assert.Equal(type.MethodTable, mt);
Assert.Same(type, heap.GetTypeByMethodTable(mt, cmt));
}
else
{
ulong mt = heap.GetMethodTable(obj);
Assert.NotEqual(0ul, mt);
Assert.Contains(mt, type.EnumerateMethodTables());
Assert.Same(type, heap.GetTypeByMethodTable(mt));
Assert.Same(type, heap.GetTypeByMethodTable(mt, 0));
ulong mt2, cmt;
bool res = heap.TryGetMethodTable(obj, out mt2, out cmt);
Assert.True(res);
Assert.Equal(mt, mt2);
Assert.Equal(0ul, cmt);
}
}
}
}
public void EETypeTest()
{
using DataTarget dt = TestTargets.AppDomains.LoadFullDump();
ClrRuntime runtime = dt.ClrVersions.Single().CreateRuntime();
ClrHeap heap = runtime.Heap;
HashSet <ulong> methodTables = (from obj in heap.EnumerateObjectAddresses()
let type = heap.GetObjectType(obj)
where !type.IsFree
select heap.GetMethodTable(obj)).Unique();
Assert.DoesNotContain(0ul, methodTables);
foreach (ulong mt in methodTables)
{
ClrType type = heap.GetTypeByMethodTable(mt);
ulong eeclass = heap.GetEEClassByMethodTable(mt);
Assert.NotEqual(0ul, eeclass);
Assert.NotEqual(0ul, heap.GetMethodTableByEEClass(eeclass));
}
}
/// <summary> /// Attempts to retrieve the MethodTable from the given object. /// Note that this some ClrTypes cannot be uniquely determined by MethodTable alone. In /// Desktop CLR, arrays of reference types all use the same MethodTable. To uniquely /// determine an array of referneces you must also have its component type. /// Note this function has undefined behavior if you do not pass a valid object reference /// to it. /// </summary> /// <param name="obj">The object to get the MethodTablee of.</param> /// <returns>The MethodTable of the object, or 0 if the address could not be read from.</returns> /// <inheritdoc /> public ulong GetMethodTable(ulong obj) => Heap.GetMethodTable(obj);