| /* |
| * Copyright (c) 2011, 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.nodes.spi; |
| |
| /** |
| * This interface allows a node to convey information about what its effect would be if some of its |
| * inputs were virtualized. The {@link #virtualize(VirtualizerTool)} method will only be called for |
| * nodes that have some interaction with virtualized nodes. However, the virtualized nodes might |
| * have been re-materialized in the meantime. |
| */ |
| public interface Virtualizable { |
| |
| /** |
| * A node class can implement this method to convey information about what its effect would be |
| * if some of its inputs were virtualized. All modifications must be made through the supplied |
| * tool, and not directly on the node, because by the time this method is called the |
| * virtualized/non-virtualized state is still speculative and might not hold because of loops, |
| * etc. |
| * |
| * @param tool the tool used to describe the effects of this node |
| */ |
| void virtualize(VirtualizerTool tool); |
| } |
