/*
 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */
package com.oracle.graal.nodes.memory;

import java.util.*;

import com.oracle.graal.api.meta.*;

/**
 * Maps a {@linkplain LocationIdentity location} to the last node that (potentially) wrote to the
 * location.
 */
public interface MemoryMap {

    /**
     * Gets the last node that that (potentially) wrote to {@code locationIdentity}.
     */
    MemoryNode getLastLocationAccess(LocationIdentity locationIdentity);

    /**
     * Gets the location identities in the domain of this map.
     */
    Collection<LocationIdentity> getLocations();
}