/// <summary>
/// Creates a new call stack
/// </summary>
/// <param name="memoryManager">The memory manager</param>
/// <param name="managedObjectReferences">The object references</param>
/// <param name="size">The maximum number of entries in the call stack</param>
public CallStack(MemoryManager memoryManager, ManagedObjectReferences managedObjectReferences, int size)
{
this.memoryManager = memoryManager;
this.managedObjectReferences = managedObjectReferences;
this.Size = size;
this.callStackMemory = memoryManager.CreatePage(Constants.NativePointerSize + size * CallStackEntrySize);
NativeHelpers.SetLong(this.TopPointer, 0, this.CallStackStart.ToInt64());
}
/// <summary>
/// Creates a new object reference for the given object
/// </summary>
/// <param name="managedObjectReferences">The managed object references</param>
/// <param name="pointer">A pointer to the start of the data part of the object</param>
public ObjectReference(ManagedObjectReferences managedObjectReferences, IntPtr pointer)
{
this.pointer = pointer - Constants.ObjectHeaderSize;
var typeId = NativeHelpers.ReadInt(this.pointer);
this.Type = managedObjectReferences.GetObject <BaseType>(typeId);
if (this.Type.IsArray)
{
var arrayType = (ArrayType)this.Type;
var elementSize = TypeSystem.SizeOf(arrayType.ElementType);
var length = NativeHelpers.ReadInt(this.pointer + Constants.ObjectHeaderSize);
this.Size = Constants.ArrayLengthSize + (length * elementSize);
}
else
{
this.Size = ((ClassType)this.Type).Metadata.Size;
}
}
