/**
* Given a slot (ie the address of an ObjectReference), ensure that the referent will not move for
* the rest of the GC. This is achieved by calling the precopyObject method.
*
* @param slot The slot to check
*/
@Inline
public final void processPrecopyEdge(Address slot) {
ObjectReference child = slot.loadObjectReference();
if (!child.isNull()) {
child = precopyObject(child);
slot.store(child);
}
}
/**
* Load an object reference
*
* @param slot The location of the reference
* @return the object reference loaded from slot
*/
@Inline
public ObjectReference loadObjectReference(Address slot) {
return slot.loadObjectReference();
}
/**
* Trace a reference during GC. This involves determining which collection policy applies and
* calling the appropriate <code>trace</code> method.
*
* @param source The source of the reference.
* @param slot The location containing the object reference to be traced. The object reference is
* <i>NOT</i> an interior pointer.
* @param root True if <code>objLoc</code> is within a root.
*/
@Inline
public final void processEdge(ObjectReference source, Address slot) {
ObjectReference object = slot.loadObjectReference();
ObjectReference newObject = traceObject(object, false);
slot.store(newObject);
}
/**
* Trace a reference during GC. This involves determining which collection policy applies and
* calling the appropriate <code>trace</code> method.
*
* @param slot The location containing the object reference to be traced. The object reference is
* <i>NOT</i> an interior pointer.
* @param root True if <code>objLoc</code> is within a root.
*/
@Inline
public final void processRootEdge(Address slot) {
ObjectReference object = slot.loadObjectReference();
ObjectReference newObject = traceObject(object, true);
slot.store(newObject);
}