/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Eclipse Public License (EPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.jikesrvm.runtime;
import org.vmmagic.unboxed.Address;
/**
* Facility for remapping object addresses across virtual machine address
* spaces. Used by boot image writer to map local (jdk) objects into remote
* (boot image) addresses. Used by debugger to map local (jdk) objects into
* remote (debugee vm) addresses.
*
* See also Magic.setObjectAddressRemapper()
*/
public interface ObjectAddressRemapper {
/**
* Map an object to an address.
* @param object in "local" virtual machine
* @return its address in a foreign virtual machine
*/
<T> Address objectAsAddress(T object);
/**
* Map an address to an object.
* @param address value obtained from "objectAsAddress"
* @return corresponding object
*/
Object addressAsObject(Address address);
/**
* Avoid duplicates of certain objects
* @param object to intern
* @return interned object
*/
<T> T intern(T object);
/**
* Identity hash code of an object
*
* @param object the object to generate the identity hash code for
* @return the identity hash code
*/
int identityHashCode(Object object);
}