| /* |
| * Copyright (c) 2016, 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.test; |
| |
| import java.lang.reflect.Method; |
| |
| /** |
| * Facade for the {@code java.lang.reflect.Module} class introduced in JDK9 that allows tests to be |
| * developed against JDK8 but use module logic if deployed on JDK9. |
| */ |
| public class JLRModule { |
| |
| static { |
| if (GraalTest.Java8OrEarlier) { |
| throw new AssertionError("Use of " + JLRModule.class + " only allowed if " + GraalTest.class.getName() + ".JDK8OrEarlier is false"); |
| } |
| } |
| |
| private final Object realModule; |
| |
| public JLRModule(Object module) { |
| this.realModule = module; |
| } |
| |
| private static final Class<?> moduleClass; |
| private static final Method getModuleMethod; |
| private static final Method getUnnamedModuleMethod; |
| private static final Method getPackagesMethod; |
| private static final Method isExportedMethod; |
| private static final Method isExported2Method; |
| private static final Method addExportsMethod; |
| static { |
| try { |
| moduleClass = Class.forName("java.lang.reflect.Module"); |
| getModuleMethod = Class.class.getMethod("getModule"); |
| getUnnamedModuleMethod = ClassLoader.class.getMethod("getUnnamedModule"); |
| getPackagesMethod = moduleClass.getMethod("getPackages"); |
| isExportedMethod = moduleClass.getMethod("isExported", String.class); |
| isExported2Method = moduleClass.getMethod("isExported", String.class, moduleClass); |
| addExportsMethod = moduleClass.getMethod("addExports", String.class, moduleClass); |
| } catch (Exception e) { |
| throw new AssertionError(e); |
| } |
| } |
| |
| public static JLRModule fromClass(Class<?> cls) { |
| try { |
| return new JLRModule(getModuleMethod.invoke(cls)); |
| } catch (Exception e) { |
| throw new AssertionError(e); |
| } |
| } |
| |
| public static JLRModule getUnnamedModuleFor(ClassLoader cl) { |
| try { |
| return new JLRModule(getUnnamedModuleMethod.invoke(cl)); |
| } catch (Exception e) { |
| throw new AssertionError(e); |
| } |
| } |
| |
| /** |
| * Exports all packages in this module to a given module. |
| */ |
| public void exportAllPackagesTo(JLRModule module) { |
| if (this != module) { |
| for (String pkg : getPackages()) { |
| // Export all JVMCI packages dynamically instead |
| // of requiring a long list of -XaddExports |
| // options on the JVM command line. |
| if (!isExported(pkg, module)) { |
| addExports(pkg, module); |
| } |
| } |
| } |
| } |
| |
| public String[] getPackages() { |
| try { |
| return (String[]) getPackagesMethod.invoke(realModule); |
| } catch (Exception e) { |
| throw new AssertionError(e); |
| } |
| } |
| |
| public boolean isExported(String pn) { |
| try { |
| return (Boolean) isExportedMethod.invoke(realModule, pn); |
| } catch (Exception e) { |
| throw new AssertionError(e); |
| } |
| } |
| |
| public boolean isExported(String pn, JLRModule other) { |
| try { |
| return (Boolean) isExported2Method.invoke(realModule, pn, other.realModule); |
| } catch (Exception e) { |
| throw new AssertionError(e); |
| } |
| } |
| |
| public void addExports(String pn, JLRModule other) { |
| try { |
| addExportsMethod.invoke(realModule, pn, other.realModule); |
| } catch (Exception e) { |
| throw new AssertionError(e); |
| } |
| } |
| } |