Mercurial > hg > truffle
view graal/com.oracle.graal.api.runtime/src/com/oracle/graal/api/runtime/Graal.java @ 19914:d27ca0a54e36
LIRPhaseSuite: add copy().
author | Josef Eisl <josef.eisl@jku.at> |
---|---|
date | Mon, 16 Mar 2015 16:37:21 +0100 |
parents | 9ca36e4e3137 |
children | 07b088d61d5d |
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/* * Copyright (c) 2012, 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.graal.api.runtime; import sun.reflect.*; public class Graal { private static final GraalRuntime runtime; private static native GraalRuntime initializeRuntime(); public static GraalRuntime getRuntime() { return runtime; } static { GraalRuntime rt; try { rt = initializeRuntime(); } catch (UnsatisfiedLinkError e) { rt = new InvalidGraalRuntime(); } runtime = rt; } @CallerSensitive public static <T> T getRequiredCapability(Class<T> clazz) { T t = getRuntime().getCapability(clazz); if (t == null) { String javaHome = System.getProperty("java.home"); String vmName = System.getProperty("java.vm.name"); StringBuilder errorMessage = new StringBuilder(); if (runtime.getClass() == InvalidGraalRuntime.class) { errorMessage.append(String.format("The VM does not support the Graal API.\n")); } else { errorMessage.append(String.format("The VM does not expose required Graal capability %s.\n", clazz.getName())); } errorMessage.append(String.format("Currently used Java home directory is %s.\n", javaHome)); errorMessage.append(String.format("Currently used VM configuration is: %s", vmName)); throw new UnsupportedOperationException(errorMessage.toString()); } return t; } private static final class InvalidGraalRuntime implements GraalRuntime { @Override public String getName() { return ""; } @Override public <T> T getCapability(Class<T> clazz) { return null; } } }