760 lines
25 KiB
Java
760 lines
25 KiB
Java
/*
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* Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.tools.javah;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.io.PrintWriter;
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import java.io.Writer;
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import java.text.MessageFormat;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.MissingResourceException;
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import java.util.ResourceBundle;
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import java.util.Set;
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import javax.annotation.processing.AbstractProcessor;
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import javax.annotation.processing.Messager;
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import javax.annotation.processing.ProcessingEnvironment;
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import javax.annotation.processing.RoundEnvironment;
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import javax.annotation.processing.SupportedAnnotationTypes;
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import javax.lang.model.SourceVersion;
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import javax.lang.model.element.ExecutableElement;
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import javax.lang.model.element.TypeElement;
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import javax.lang.model.element.VariableElement;
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import javax.lang.model.type.ArrayType;
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import javax.lang.model.type.DeclaredType;
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import javax.lang.model.type.TypeMirror;
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import javax.lang.model.type.TypeVisitor;
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import javax.lang.model.util.ElementFilter;
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import javax.lang.model.util.SimpleTypeVisitor8;
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import javax.lang.model.util.Types;
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import javax.tools.Diagnostic;
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import javax.tools.DiagnosticListener;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaCompiler.CompilationTask;
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import javax.tools.JavaFileManager;
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import javax.tools.JavaFileObject;
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import javax.tools.StandardJavaFileManager;
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import javax.tools.StandardLocation;
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import javax.tools.ToolProvider;
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import static javax.tools.Diagnostic.Kind.*;
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import com.sun.tools.javac.code.Symbol.CompletionFailure;
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import com.sun.tools.javac.main.CommandLine;
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/**
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* Javah generates support files for native methods.
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* Parse commandline options and invokes javadoc to execute those commands.
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*
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* <p><b>This is NOT part of any supported API.
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* If you write code that depends on this, you do so at your own
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* risk. This code and its internal interfaces are subject to change
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* or deletion without notice.</b></p>
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*
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* @author Sucheta Dambalkar
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* @author Jonathan Gibbons
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*/
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public class JavahTask implements NativeHeaderTool.NativeHeaderTask {
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public class BadArgs extends Exception {
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private static final long serialVersionUID = 1479361270874789045L;
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BadArgs(String key, Object... args) {
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super(JavahTask.this.getMessage(key, args));
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this.key = key;
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this.args = args;
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}
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BadArgs showUsage(boolean b) {
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showUsage = b;
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return this;
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}
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final String key;
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final Object[] args;
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boolean showUsage;
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}
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static abstract class Option {
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Option(boolean hasArg, String... aliases) {
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this.hasArg = hasArg;
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this.aliases = aliases;
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}
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boolean isHidden() {
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return false;
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}
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boolean matches(String opt) {
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for (String a: aliases) {
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if (a.equals(opt))
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return true;
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}
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return false;
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}
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boolean ignoreRest() {
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return false;
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}
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abstract void process(JavahTask task, String opt, String arg) throws BadArgs;
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final boolean hasArg;
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final String[] aliases;
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}
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static abstract class HiddenOption extends Option {
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HiddenOption(boolean hasArg, String... aliases) {
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super(hasArg, aliases);
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}
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@Override
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boolean isHidden() {
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return true;
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}
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}
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static final Option[] recognizedOptions = {
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new Option(true, "-o") {
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void process(JavahTask task, String opt, String arg) {
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task.ofile = new File(arg);
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}
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},
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new Option(true, "-d") {
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void process(JavahTask task, String opt, String arg) {
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task.odir = new File(arg);
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}
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},
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new HiddenOption(true, "-td") {
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void process(JavahTask task, String opt, String arg) {
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// ignored; for backwards compatibility
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}
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},
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new HiddenOption(false, "-stubs") {
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void process(JavahTask task, String opt, String arg) {
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// ignored; for backwards compatibility
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}
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},
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new Option(false, "-v", "-verbose") {
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void process(JavahTask task, String opt, String arg) {
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task.verbose = true;
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}
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},
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new Option(false, "-h", "-help", "--help", "-?") {
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void process(JavahTask task, String opt, String arg) {
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task.help = true;
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}
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},
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new HiddenOption(false, "-trace") {
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void process(JavahTask task, String opt, String arg) {
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task.trace = true;
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}
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},
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new Option(false, "-version") {
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void process(JavahTask task, String opt, String arg) {
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task.version = true;
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}
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},
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new HiddenOption(false, "-fullversion") {
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void process(JavahTask task, String opt, String arg) {
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task.fullVersion = true;
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}
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},
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new Option(false, "-jni") {
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void process(JavahTask task, String opt, String arg) {
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task.jni = true;
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}
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},
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new Option(false, "-force") {
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void process(JavahTask task, String opt, String arg) {
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task.force = true;
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}
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},
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new HiddenOption(false, "-Xnew") {
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void process(JavahTask task, String opt, String arg) {
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// we're already using the new javah
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}
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},
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new HiddenOption(false, "-llni", "-Xllni") {
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void process(JavahTask task, String opt, String arg) {
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task.llni = true;
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}
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},
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new HiddenOption(false, "-llnidouble") {
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void process(JavahTask task, String opt, String arg) {
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task.llni = true;
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task.doubleAlign = true;
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}
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},
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new HiddenOption(false) {
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boolean matches(String opt) {
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return opt.startsWith("-XD");
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}
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void process(JavahTask task, String opt, String arg) {
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task.javac_extras.add(opt);
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}
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},
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};
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JavahTask() {
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}
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JavahTask(Writer out,
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JavaFileManager fileManager,
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DiagnosticListener<? super JavaFileObject> diagnosticListener,
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Iterable<String> options,
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Iterable<String> classes) {
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this();
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this.log = getPrintWriterForWriter(out);
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this.fileManager = fileManager;
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this.diagnosticListener = diagnosticListener;
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try {
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handleOptions(options, false);
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} catch (BadArgs e) {
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throw new IllegalArgumentException(e.getMessage());
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}
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this.classes = new ArrayList<String>();
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if (classes != null) {
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for (String classname: classes) {
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classname.getClass(); // null-check
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this.classes.add(classname);
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}
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}
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}
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public void setLocale(Locale locale) {
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if (locale == null)
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locale = Locale.getDefault();
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task_locale = locale;
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}
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public void setLog(PrintWriter log) {
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this.log = log;
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}
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public void setLog(OutputStream s) {
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setLog(getPrintWriterForStream(s));
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}
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static PrintWriter getPrintWriterForStream(OutputStream s) {
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return new PrintWriter(s, true);
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}
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static PrintWriter getPrintWriterForWriter(Writer w) {
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if (w == null)
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return getPrintWriterForStream(null);
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else if (w instanceof PrintWriter)
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return (PrintWriter) w;
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else
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return new PrintWriter(w, true);
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}
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public void setDiagnosticListener(DiagnosticListener<? super JavaFileObject> dl) {
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diagnosticListener = dl;
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}
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public void setDiagnosticListener(OutputStream s) {
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setDiagnosticListener(getDiagnosticListenerForStream(s));
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}
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private DiagnosticListener<JavaFileObject> getDiagnosticListenerForStream(OutputStream s) {
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return getDiagnosticListenerForWriter(getPrintWriterForStream(s));
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}
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private DiagnosticListener<JavaFileObject> getDiagnosticListenerForWriter(Writer w) {
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final PrintWriter pw = getPrintWriterForWriter(w);
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return new DiagnosticListener<JavaFileObject> () {
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public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
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if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
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pw.print(getMessage("err.prefix"));
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pw.print(" ");
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}
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pw.println(diagnostic.getMessage(null));
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}
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};
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}
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int run(String[] args) {
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try {
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handleOptions(args);
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boolean ok = run();
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return ok ? 0 : 1;
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} catch (BadArgs e) {
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diagnosticListener.report(createDiagnostic(e.key, e.args));
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return 1;
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} catch (InternalError e) {
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diagnosticListener.report(createDiagnostic("err.internal.error", e.getMessage()));
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return 1;
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} catch (Util.Exit e) {
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return e.exitValue;
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} finally {
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log.flush();
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}
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}
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public void handleOptions(String[] args) throws BadArgs {
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handleOptions(Arrays.asList(args), true);
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}
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private void handleOptions(Iterable<String> args, boolean allowClasses) throws BadArgs {
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if (log == null) {
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log = getPrintWriterForStream(System.out);
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if (diagnosticListener == null)
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diagnosticListener = getDiagnosticListenerForStream(System.err);
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} else {
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if (diagnosticListener == null)
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diagnosticListener = getDiagnosticListenerForWriter(log);
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}
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if (fileManager == null)
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fileManager = getDefaultFileManager(diagnosticListener, log);
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Iterator<String> iter = expandAtArgs(args).iterator();
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noArgs = !iter.hasNext();
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while (iter.hasNext()) {
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String arg = iter.next();
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if (arg.startsWith("-"))
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handleOption(arg, iter);
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else if (allowClasses) {
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if (classes == null)
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classes = new ArrayList<String>();
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classes.add(arg);
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while (iter.hasNext())
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classes.add(iter.next());
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} else
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throw new BadArgs("err.unknown.option", arg).showUsage(true);
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}
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if ((classes == null || classes.size() == 0) &&
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!(noArgs || help || version || fullVersion)) {
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throw new BadArgs("err.no.classes.specified");
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}
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if (jni && llni)
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throw new BadArgs("jni.llni.mixed");
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if (odir != null && ofile != null)
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throw new BadArgs("dir.file.mixed");
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}
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private void handleOption(String name, Iterator<String> rest) throws BadArgs {
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for (Option o: recognizedOptions) {
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if (o.matches(name)) {
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if (o.hasArg) {
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if (rest.hasNext())
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o.process(this, name, rest.next());
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else
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throw new BadArgs("err.missing.arg", name).showUsage(true);
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} else
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o.process(this, name, null);
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if (o.ignoreRest()) {
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while (rest.hasNext())
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rest.next();
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}
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return;
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}
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}
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if (fileManager.handleOption(name, rest))
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return;
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throw new BadArgs("err.unknown.option", name).showUsage(true);
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}
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private Iterable<String> expandAtArgs(Iterable<String> args) throws BadArgs {
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try {
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List<String> l = new ArrayList<String>();
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for (String arg: args) l.add(arg);
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return Arrays.asList(CommandLine.parse(l.toArray(new String[l.size()])));
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} catch (FileNotFoundException e) {
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throw new BadArgs("at.args.file.not.found", e.getLocalizedMessage());
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} catch (IOException e) {
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throw new BadArgs("at.args.io.exception", e.getLocalizedMessage());
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}
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}
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public Boolean call() {
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return run();
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}
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public boolean run() throws Util.Exit {
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Util util = new Util(log, diagnosticListener);
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if (noArgs || help) {
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showHelp();
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return help; // treat noArgs as an error for purposes of exit code
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}
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if (version || fullVersion) {
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showVersion(fullVersion);
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return true;
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}
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util.verbose = verbose;
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Gen g;
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if (llni)
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g = new LLNI(doubleAlign, util);
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else {
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// if (stubs)
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// throw new BadArgs("jni.no.stubs");
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g = new JNI(util);
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}
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if (ofile != null) {
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if (!(fileManager instanceof StandardJavaFileManager)) {
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diagnosticListener.report(createDiagnostic("err.cant.use.option.for.fm", "-o"));
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return false;
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}
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Iterable<? extends JavaFileObject> iter =
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((StandardJavaFileManager) fileManager).getJavaFileObjectsFromFiles(Collections.singleton(ofile));
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JavaFileObject fo = iter.iterator().next();
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g.setOutFile(fo);
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} else {
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if (odir != null) {
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if (!(fileManager instanceof StandardJavaFileManager)) {
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diagnosticListener.report(createDiagnostic("err.cant.use.option.for.fm", "-d"));
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return false;
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}
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if (!odir.exists())
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if (!odir.mkdirs())
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util.error("cant.create.dir", odir.toString());
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try {
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((StandardJavaFileManager) fileManager).setLocation(StandardLocation.CLASS_OUTPUT, Collections.singleton(odir));
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} catch (IOException e) {
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Object msg = e.getLocalizedMessage();
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if (msg == null) {
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msg = e;
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}
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diagnosticListener.report(createDiagnostic("err.ioerror", odir, msg));
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return false;
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}
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}
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g.setFileManager(fileManager);
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}
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/*
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* Force set to false will turn off smarts about checking file
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* content before writing.
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*/
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g.setForce(force);
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if (fileManager instanceof JavahFileManager)
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((JavahFileManager) fileManager).setSymbolFileEnabled(false);
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JavaCompiler c = ToolProvider.getSystemJavaCompiler();
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List<String> opts = new ArrayList<String>();
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opts.add("-proc:only");
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opts.addAll(javac_extras);
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CompilationTask t = c.getTask(log, fileManager, diagnosticListener, opts, classes, null);
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JavahProcessor p = new JavahProcessor(g);
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t.setProcessors(Collections.singleton(p));
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boolean ok = t.call();
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if (p.exit != null)
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throw new Util.Exit(p.exit);
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return ok;
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}
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private List<File> pathToFiles(String path) {
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List<File> files = new ArrayList<File>();
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for (String f: path.split(File.pathSeparator)) {
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if (f.length() > 0)
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files.add(new File(f));
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}
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return files;
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}
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static StandardJavaFileManager getDefaultFileManager(final DiagnosticListener<? super JavaFileObject> dl, PrintWriter log) {
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return JavahFileManager.create(dl, log);
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}
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private void showHelp() {
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log.println(getMessage("main.usage", progname));
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for (Option o: recognizedOptions) {
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if (o.isHidden())
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continue;
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String name = o.aliases[0].substring(1); // there must always be at least one name
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log.println(getMessage("main.opt." + name));
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}
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String[] fmOptions = { "-classpath", "-cp", "-bootclasspath" };
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for (String o: fmOptions) {
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if (fileManager.isSupportedOption(o) == -1)
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continue;
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String name = o.substring(1);
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log.println(getMessage("main.opt." + name));
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}
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log.println(getMessage("main.usage.foot"));
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}
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private void showVersion(boolean full) {
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log.println(version(full));
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}
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private static final String versionRBName = "com.sun.tools.javah.resources.version";
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private static ResourceBundle versionRB;
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private String version(boolean full) {
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String msgKey = (full ? "javah.fullVersion" : "javah.version");
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String versionKey = (full ? "full" : "release");
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// versionKey=product: mm.nn.oo[-milestone]
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// versionKey=full: mm.mm.oo[-milestone]-build
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|
if (versionRB == null) {
|
|
try {
|
|
versionRB = ResourceBundle.getBundle(versionRBName);
|
|
} catch (MissingResourceException e) {
|
|
return getMessage("version.resource.missing", System.getProperty("java.version"));
|
|
}
|
|
}
|
|
try {
|
|
return getMessage(msgKey, "javah", versionRB.getString(versionKey));
|
|
}
|
|
catch (MissingResourceException e) {
|
|
return getMessage("version.unknown", System.getProperty("java.version"));
|
|
}
|
|
}
|
|
|
|
private Diagnostic<JavaFileObject> createDiagnostic(final String key, final Object... args) {
|
|
return new Diagnostic<JavaFileObject>() {
|
|
public Kind getKind() {
|
|
return Diagnostic.Kind.ERROR;
|
|
}
|
|
|
|
public JavaFileObject getSource() {
|
|
return null;
|
|
}
|
|
|
|
public long getPosition() {
|
|
return Diagnostic.NOPOS;
|
|
}
|
|
|
|
public long getStartPosition() {
|
|
return Diagnostic.NOPOS;
|
|
}
|
|
|
|
public long getEndPosition() {
|
|
return Diagnostic.NOPOS;
|
|
}
|
|
|
|
public long getLineNumber() {
|
|
return Diagnostic.NOPOS;
|
|
}
|
|
|
|
public long getColumnNumber() {
|
|
return Diagnostic.NOPOS;
|
|
}
|
|
|
|
public String getCode() {
|
|
return key;
|
|
}
|
|
|
|
public String getMessage(Locale locale) {
|
|
return JavahTask.this.getMessage(locale, key, args);
|
|
}
|
|
|
|
};
|
|
}
|
|
|
|
private String getMessage(String key, Object... args) {
|
|
return getMessage(task_locale, key, args);
|
|
}
|
|
|
|
private String getMessage(Locale locale, String key, Object... args) {
|
|
if (bundles == null) {
|
|
// could make this a HashMap<Locale,SoftReference<ResourceBundle>>
|
|
// and for efficiency, keep a hard reference to the bundle for the task
|
|
// locale
|
|
bundles = new HashMap<Locale, ResourceBundle>();
|
|
}
|
|
|
|
if (locale == null)
|
|
locale = Locale.getDefault();
|
|
|
|
ResourceBundle b = bundles.get(locale);
|
|
if (b == null) {
|
|
try {
|
|
b = ResourceBundle.getBundle("com.sun.tools.javah.resources.l10n", locale);
|
|
bundles.put(locale, b);
|
|
} catch (MissingResourceException e) {
|
|
throw new InternalError("Cannot find javah resource bundle for locale " + locale, e);
|
|
}
|
|
}
|
|
|
|
try {
|
|
return MessageFormat.format(b.getString(key), args);
|
|
} catch (MissingResourceException e) {
|
|
return key;
|
|
//throw new InternalError(e, key);
|
|
}
|
|
}
|
|
|
|
File ofile;
|
|
File odir;
|
|
String bootcp;
|
|
String usercp;
|
|
List<String> classes;
|
|
boolean verbose;
|
|
boolean noArgs;
|
|
boolean help;
|
|
boolean trace;
|
|
boolean version;
|
|
boolean fullVersion;
|
|
boolean jni;
|
|
boolean llni;
|
|
boolean doubleAlign;
|
|
boolean force;
|
|
Set<String> javac_extras = new LinkedHashSet<String>();
|
|
|
|
PrintWriter log;
|
|
JavaFileManager fileManager;
|
|
DiagnosticListener<? super JavaFileObject> diagnosticListener;
|
|
Locale task_locale;
|
|
Map<Locale, ResourceBundle> bundles;
|
|
|
|
private static final String progname = "javah";
|
|
|
|
@SupportedAnnotationTypes("*")
|
|
class JavahProcessor extends AbstractProcessor {
|
|
private Messager messager;
|
|
|
|
JavahProcessor(Gen g) {
|
|
this.g = g;
|
|
}
|
|
|
|
@Override
|
|
public SourceVersion getSupportedSourceVersion() {
|
|
// since this is co-bundled with javac, we can assume it supports
|
|
// the latest source version
|
|
return SourceVersion.latest();
|
|
}
|
|
|
|
@Override
|
|
public void init(ProcessingEnvironment pEnv) {
|
|
super.init(pEnv);
|
|
messager = processingEnv.getMessager();
|
|
}
|
|
|
|
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
|
|
try {
|
|
Set<TypeElement> classes = getAllClasses(ElementFilter.typesIn(roundEnv.getRootElements()));
|
|
if (classes.size() > 0) {
|
|
checkMethodParameters(classes);
|
|
g.setProcessingEnvironment(processingEnv);
|
|
g.setClasses(classes);
|
|
g.run();
|
|
}
|
|
} catch (CompletionFailure cf) {
|
|
messager.printMessage(ERROR, getMessage("class.not.found", cf.sym.getQualifiedName().toString()));
|
|
} catch (ClassNotFoundException cnfe) {
|
|
messager.printMessage(ERROR, getMessage("class.not.found", cnfe.getMessage()));
|
|
} catch (IOException ioe) {
|
|
messager.printMessage(ERROR, getMessage("io.exception", ioe.getMessage()));
|
|
} catch (Util.Exit e) {
|
|
exit = e;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private Set<TypeElement> getAllClasses(Set<? extends TypeElement> classes) {
|
|
Set<TypeElement> allClasses = new LinkedHashSet<TypeElement>();
|
|
getAllClasses0(classes, allClasses);
|
|
return allClasses;
|
|
}
|
|
|
|
private void getAllClasses0(Iterable<? extends TypeElement> classes, Set<TypeElement> allClasses) {
|
|
for (TypeElement c: classes) {
|
|
allClasses.add(c);
|
|
getAllClasses0(ElementFilter.typesIn(c.getEnclosedElements()), allClasses);
|
|
}
|
|
}
|
|
|
|
// 4942232:
|
|
// check that classes exist for all the parameters of native methods
|
|
private void checkMethodParameters(Set<TypeElement> classes) {
|
|
Types types = processingEnv.getTypeUtils();
|
|
for (TypeElement te: classes) {
|
|
for (ExecutableElement ee: ElementFilter.methodsIn(te.getEnclosedElements())) {
|
|
for (VariableElement ve: ee.getParameters()) {
|
|
TypeMirror tm = ve.asType();
|
|
checkMethodParametersVisitor.visit(tm, types);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private TypeVisitor<Void,Types> checkMethodParametersVisitor =
|
|
new SimpleTypeVisitor8<Void,Types>() {
|
|
@Override
|
|
public Void visitArray(ArrayType t, Types types) {
|
|
visit(t.getComponentType(), types);
|
|
return null;
|
|
}
|
|
@Override
|
|
public Void visitDeclared(DeclaredType t, Types types) {
|
|
t.asElement().getKind(); // ensure class exists
|
|
for (TypeMirror st: types.directSupertypes(t))
|
|
visit(st, types);
|
|
return null;
|
|
}
|
|
};
|
|
|
|
private Gen g;
|
|
private Util.Exit exit;
|
|
}
|
|
}
|