/// <summary>
/// This function is called from the lazy vtable resolver thunks via the UniversalTransitionThunk to compute
/// the correct resolution of a virtual dispatch.
/// </summary>
/// <param name="callerTransitionBlockParam">pointer to the arguments of the called function</param>
/// <param name="eeTypePointerOffsetAsIntPtr">eeTypePointerOffsetAsIntPtr is the offset from the start of the EEType to the vtable slot</param>
/// <returns>function pointer of correct override of virtual function</returns>
unsafe private static IntPtr VTableResolveThunk(IntPtr callerTransitionBlockParam, IntPtr eeTypePointerOffsetAsIntPtr)
{
int eeTypePointerOffset = (int)eeTypePointerOffsetAsIntPtr;
int vtableSlotIndex = EETypeVTableOffsetToSlotIndex(eeTypePointerOffset);
Debug.Assert(eeTypePointerOffset == SlotIndexToEETypeVTableOffset(vtableSlotIndex)); // Assert that the round trip through the slot calculations is good
EEType **thisPointer = *((EEType ***)(((byte *)callerTransitionBlockParam) + ArgIterator.GetThisOffset()));
EEType * eeType = *thisPointer;
RuntimeTypeHandle rth = eeType->ToRuntimeTypeHandle();
TypeSystemContext context = TypeSystemContextFactory.Create();
TypeDesc type = context.ResolveRuntimeTypeHandle(rth);
IntPtr functionPointer = ResolveVirtualVTableFunction(type, vtableSlotIndex);
eeType->GetVTableStartAddress()[vtableSlotIndex] = functionPointer;
TypeSystemContextFactory.Recycle(context);
return(functionPointer);
}
internal unsafe extern static void RhpGetDispatchCellInfo(IntPtr pCell, EEType **pInterfaceType, ushort *slot);
