Mercurial > hg > graal-compiler
view graal/com.oracle.jvmci.debug/src/com/oracle/jvmci/debug/internal/KeyRegistry.java @ 21709:3c17c0c41a6b
moved com.oracle.asm.**.test to JVMCI namespace (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 03 Jun 2015 18:33:23 +0200 |
parents | b1530a6cce8c |
children |
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/* * Copyright (c) 2012, 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 com.oracle.jvmci.debug.internal; import java.util.*; /** * Registry for allocating a globally unique integer id to each {@link DebugValue}. */ public class KeyRegistry { private static final Map<String, Integer> keyMap = new HashMap<>(); private static final List<DebugValue> debugValues = new ArrayList<>(); /** * Ensures a given debug value is registered. * * @return the globally unique id for {@code value} */ public static synchronized int register(DebugValue value) { String name = value.getName(); if (!keyMap.containsKey(name)) { keyMap.put(name, debugValues.size()); debugValues.add(value); } return keyMap.get(name); } /** * Gets a immutable view of the registered debug values. * * @return a list where {@code get(i).getIndex() == i} */ public static synchronized List<DebugValue> getDebugValues() { return Collections.unmodifiableList(debugValues); } }