| /* |
| * Copyright (c) 2010, 2013, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 jdk.nashorn.internal.codegen; |
| |
| import jdk.nashorn.internal.codegen.types.Type; |
| |
| /** |
| * Encapsulates the information for restoring the local state when continuing execution after a rewrite triggered by |
| * an optimistic assumption failure. An instance of this class is specific to a program point. |
| * |
| */ |
| public class LocalStateRestorationInfo { |
| private final Type[] localVariableTypes; |
| private final int[] stackLoads; |
| |
| LocalStateRestorationInfo(final Type[] localVariableTypes, final int[] stackLoads) { |
| this.localVariableTypes = localVariableTypes; |
| this.stackLoads = stackLoads; |
| } |
| |
| /** |
| * Returns the types of the local variables at the continuation of a program point. |
| * @return the types of the local variables at the continuation of a program point. |
| */ |
| public Type[] getLocalVariableTypes() { |
| return localVariableTypes.clone(); |
| } |
| |
| /** |
| * Returns the indices of local variables that need to be loaded on stack before jumping to the continuation of the |
| * program point. |
| * @return the indices of local variables that need to be loaded on stack. |
| */ |
| public int[] getStackLoads() { |
| return stackLoads.clone(); |
| } |
| } |