| /* Compiler.java -- placeholder for Java-to-native runtime compilers |
| Copyright (C) 1998, 1999, 2001, 2002, 2004, 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package java.lang; |
| |
| /** |
| * The <code>Compiler</code> class is a placeholder for a JIT compiler |
| * implementation, and does nothing unless there is such a compiler. |
| * |
| * <p>The system property <code>java.compiler</code> may contain the name |
| * of a library to load with <code>System.loadLibrary</code> when the |
| * virtual machine first starts. If so, and loading the library succeeds, |
| * then a function by the name of <code>java_lang_Compiler_start()</code> |
| * in that library is called. |
| * |
| * <p>Note that a VM might not have implemented any of this. |
| * |
| * @author Tom Tromey (tromey@cygnus.com) |
| * @see System#getProperty(String) |
| * @see System#getProperty(String, String) |
| * @see System#loadLibrary(String) |
| * @since JDK 1.0 |
| * @status updated to 1.4 |
| */ |
| public final class Compiler |
| { |
| /** |
| * Don't allow new `Compiler's to be made. |
| */ |
| private Compiler() |
| { |
| } |
| |
| /** |
| * Compile the class named by <code>oneClass</code>. |
| * |
| * @param oneClass the class to compile |
| * @return <code>false</code> if no compiler is available or |
| * compilation failed, <code>true</code> if compilation succeeded |
| * @throws NullPointerException if oneClass is null |
| */ |
| public static boolean compileClass(Class oneClass) |
| { |
| return VMCompiler.compileClass(oneClass); |
| } |
| |
| /** |
| * Compile the classes whose name matches <code>classNames</code>. |
| * |
| * @param classNames the name of classes to compile |
| * @return <code>false</code> if no compiler is available or |
| * compilation failed, <code>true</code> if compilation succeeded |
| * @throws NullPointerException if classNames is null |
| */ |
| public static boolean compileClasses(String classNames) |
| { |
| return VMCompiler.compileClasses(classNames); |
| } |
| |
| /** |
| * This method examines the argument and performs an operation |
| * according to the compilers documentation. No specific operation |
| * is required. |
| * |
| * @param arg a compiler-specific argument |
| * @return a compiler-specific value, including null |
| * @throws NullPointerException if the compiler doesn't like a null arg |
| */ |
| public static Object command(Object arg) |
| { |
| return VMCompiler.command(arg); |
| } |
| |
| /** |
| * Calling <code>Compiler.enable()</code> will cause the compiler |
| * to resume operation if it was previously disabled; provided that a |
| * compiler even exists. |
| */ |
| public static void enable() |
| { |
| VMCompiler.enable(); |
| } |
| |
| /** |
| * Calling <code>Compiler.disable()</code> will cause the compiler |
| * to be suspended; provided that a compiler even exists. |
| */ |
| public static void disable() |
| { |
| VMCompiler.disable(); |
| } |
| } |