com.oracle.svm.core.genscavenge

Class GreyToBlackObjectVisitor

java.lang.Object

com.oracle.svm.core.genscavenge.GreyToBlackObjectVisitor

All Implemented Interfaces:

ObjectVisitor

public final class GreyToBlackObjectVisitor
extends Object
implements ObjectVisitor

Run an ObjectReferenceVisitor (GreyToBlackObjRefVisitor) over any interior object references in the Object, turning this Object from grey to black. This visitor is used during GC and so it must be constructed during native image generation. The vanilla visitObject method is not inlined, but there is a visitObjectInline available for performance critical code.

Method Summary

Modifier and Type	Method and Description
boolean	epilogue() After a visit ends.
static GreyToBlackObjectVisitor	factory(ObjectReferenceVisitor objRefVisitor)
boolean	visitObject(Object o) Visit the interior Pointers of an Object.
boolean	visitObjectInline(Object o) Like visitObject(Object), but inlined for performance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.oracle.svm.core.heap.ObjectVisitor

prologue

Method Detail

factory

public static GreyToBlackObjectVisitor factory(ObjectReferenceVisitor objRefVisitor)

epilogue

public boolean epilogue()

After a visit ends.

Specified by:

epilogue in interface ObjectVisitor

Returns:

true if the epilogue executed successfully, false otherwise.

visitObject

public boolean visitObject(Object o)

Visit the interior Pointers of an Object.

Specified by:

visitObject in interface ObjectVisitor

Parameters:

o - The Object to be visited.

Returns:

true if visiting should continue, false if visiting should stop.

visitObjectInline

public boolean visitObjectInline(Object o)

Description copied from interface: ObjectVisitor

Like visitObject(Object), but inlined for performance.

Specified by:

visitObjectInline in interface ObjectVisitor