jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javap/JavapTask.java@cd0630109de5 (annotated)

src/share/classes/com/sun/tools/javap/JavapTask.java@cd0630109de5 (annotated)

src/share/classes/com/sun/tools/javap/JavapTask.java

Tue, 19 May 2009 11:50:54 -0700

author: jjg
date: Tue, 19 May 2009 11:50:54 -0700
changeset 283: cd0630109de5
parent 90: 6be961ee2290
child 291: 47cf04bb80c9
permissions: -rw-r--r--

6824493: experimental support for additional info for instructions
Reviewed-by: mcimadamore

 /*
  * Copyright 2007-2008 Sun Microsystems, Inc.  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.  Sun designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Sun in the LICENSE file that accompanied this code.
  *
  * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */
 package com.sun.tools.javap;
 import java.io.EOFException;
 import java.io.FileNotFoundException;
 import java.io.FilterInputStream;
 import java.io.InputStream;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.io.Writer;
 import java.security.DigestInputStream;
 import java.security.MessageDigest;
 import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.MissingResourceException;
 import java.util.ResourceBundle;
 import javax.tools.Diagnostic;
 import javax.tools.DiagnosticListener;
 import javax.tools.JavaFileManager;
 import javax.tools.JavaFileObject;
 import javax.tools.StandardJavaFileManager;
 import javax.tools.StandardLocation;
 import com.sun.tools.classfile.*;
 /**
  *  "Main" class for javap, normally accessed from the command line
  *  via Main, or from JSR199 via DisassemblerTool.
  *
  *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If
  *  you write code that depends on this, you do so at your own risk.
  *  This code and its internal interfaces are subject to change or
  *  deletion without notice.</b>
  */
 public class JavapTask implements DisassemblerTool.DisassemblerTask, Messages {
     public class BadArgs extends Exception {
         static final long serialVersionUID = 8765093759964640721L;
         BadArgs(String key, Object... args) {
             super(JavapTask.this.getMessage(key, args));
             this.key = key;
             this.args = args;
         }
         BadArgs showUsage(boolean b) {
             showUsage = b;
             return this;
         }
         final String key;
         final Object[] args;
         boolean showUsage;
     }
     static abstract class Option {
         Option(boolean hasArg, String... aliases) {
             this.hasArg = hasArg;
             this.aliases = aliases;
         }
         boolean matches(String opt) {
             for (String a: aliases) {
                 if (a.equals(opt))
                     return true;
             }
             return false;
         }
         boolean ignoreRest() {
             return false;
         }
         abstract void process(JavapTask task, String opt, String arg) throws BadArgs;
         final boolean hasArg;
         final String[] aliases;
     }
     static Option[] recognizedOptions = {
         new Option(false, "-help", "--help", "-?") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.help = true;
             }
         },
         new Option(false, "-version") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.version = true;
             }
         },
         new Option(false, "-fullversion") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.fullVersion = true;
             }
         },
         new Option(false, "-v", "-verbose", "-all") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.verbose = true;
                 task.options.showFlags = true;
                 task.options.showAllAttrs = true;
             }
         },
         new Option(false, "-l") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.showLineAndLocalVariableTables = true;
             }
         },
         new Option(false, "-public") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.accessOptions.add(opt);
                 task.options.showAccess = AccessFlags.ACC_PUBLIC;
             }
         },
         new Option(false, "-protected") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.accessOptions.add(opt);
                 task.options.showAccess = AccessFlags.ACC_PROTECTED;
             }
         },
         new Option(false, "-package") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.accessOptions.add(opt);
                 task.options.showAccess = 0;
             }
         },
         new Option(false, "-p", "-private") {
             void process(JavapTask task, String opt, String arg) {
                 if (!task.options.accessOptions.contains("-p") &&
                         !task.options.accessOptions.contains("-private")) {
                     task.options.accessOptions.add(opt);
                 }
                 task.options.showAccess = AccessFlags.ACC_PRIVATE;
             }
         },
         new Option(false, "-c") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.showDisassembled = true;
             }
         },
         new Option(false, "-s") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.showInternalSignatures = true;
             }
         },
 //        new Option(false, "-all") {
 //            void process(JavapTask task, String opt, String arg) {
 //                task.options.showAllAttrs = true;
 //            }
 //        },
         new Option(false, "-h") {
             void process(JavapTask task, String opt, String arg) throws BadArgs {
                 throw task.new BadArgs("err.h.not.supported");
             }
         },
         new Option(false, "-verify", "-verify-verbose") {
             void process(JavapTask task, String opt, String arg) throws BadArgs {
                 throw task.new BadArgs("err.verify.not.supported");
             }
         },
         new Option(false, "-sysinfo") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.sysInfo = true;
             }
         },
         new Option(false, "-Xold") {
             void process(JavapTask task, String opt, String arg) throws BadArgs {
                 // -Xold is only supported as first arg when invoked from
                 // command line; this is handled in Main,main
                 throw task.new BadArgs("err.Xold.not.supported.here");
             }
         },
         new Option(false, "-Xnew") {
             void process(JavapTask task, String opt, String arg) throws BadArgs {
                 // ignore: this _is_ the new version
             }
         },
         new Option(false, "-XDcompat") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.compat = true;
             }
         },
         new Option(false, "-XDjsr277") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.jsr277 = true;
             }
         },
         new Option(false, "-XDignore.symbol.file") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.ignoreSymbolFile = true;
             }
         },
         new Option(false, "-XDdetails") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.details = EnumSet.allOf(InstructionDetailWriter.Kind.class);
             }
         },
         new Option(false, "-XDdetails:") {
             @Override
             boolean matches(String opt) {
                 int sep = opt.indexOf(":");
                 return sep != -1 && super.matches(opt.substring(0, sep + 1));
             }
             void process(JavapTask task, String opt, String arg) throws BadArgs {
                 int sep = opt.indexOf(":");
                 for (String v: opt.substring(sep + 1).split("[,: ]+")) {
                     if (!handleArg(task, v))
                         throw task.new BadArgs("err.invalid.arg.for.option", v);
                 }
             }
             boolean handleArg(JavapTask task, String arg) {
                 if (arg.length() == 0)
                     return true;
                 if (arg.equals("all")) {
                     task.options.details = EnumSet.allOf(InstructionDetailWriter.Kind.class);
                     return true;
                 }
                 boolean on = true;
                 if (arg.startsWith("-")) {
                     on = false;
                     arg = arg.substring(1);
                 }
                 for (InstructionDetailWriter.Kind k: InstructionDetailWriter.Kind.values()) {
                     if (arg.equalsIgnoreCase(k.option)) {
                         if (on)
                             task.options.details.add(k);
                         else
                             task.options.details.remove(k);
                         return true;
                     }
                 }
                 return false;
             }
         },
         new Option(false, "-constants") {
             void process(JavapTask task, String opt, String arg) {
                 task.options.showConstants = true;
             }
         }
     };
     JavapTask() {
         context = new Context();
         context.put(Messages.class, this);
         options = Options.instance(context);
     }
     JavapTask(Writer out,
             JavaFileManager fileManager,
             DiagnosticListener<? super JavaFileObject> diagnosticListener,
             Iterable<String> options,
             Iterable<String> classes) {
         this();
         this.log = getPrintWriterForWriter(out);
         this.fileManager = fileManager;
         this.diagnosticListener = diagnosticListener;
         try {
             handleOptions(options, false);
         } catch (BadArgs e) {
             throw new IllegalArgumentException(e.getMessage());
         }
         this.classes = new ArrayList<String>();
         for (String classname: classes) {
             classname.getClass(); // null-check
             this.classes.add(classname);
         }
     }
     public void setLocale(Locale locale) {
         if (locale == null)
             locale = Locale.getDefault();
         task_locale = locale;
     }
     public void setLog(PrintWriter log) {
         this.log = log;
     }
     public void setLog(OutputStream s) {
         setLog(getPrintWriterForStream(s));
     }
     private static PrintWriter getPrintWriterForStream(OutputStream s) {
         return new PrintWriter(s, true);
     }
     private static PrintWriter getPrintWriterForWriter(Writer w) {
         if (w == null)
             return getPrintWriterForStream(null);
         else if (w instanceof PrintWriter)
             return (PrintWriter) w;
         else
             return new PrintWriter(w, true);
     }
     public void setDiagnosticListener(DiagnosticListener<? super JavaFileObject> dl) {
         diagnosticListener = dl;
     }
     public void setDiagnosticListener(OutputStream s) {
         setDiagnosticListener(getDiagnosticListenerForStream(s));
     }
     private DiagnosticListener<JavaFileObject> getDiagnosticListenerForStream(OutputStream s) {
         return getDiagnosticListenerForWriter(getPrintWriterForStream(s));
     }
     private DiagnosticListener<JavaFileObject> getDiagnosticListenerForWriter(Writer w) {
         final PrintWriter pw = getPrintWriterForWriter(w);
         return new DiagnosticListener<JavaFileObject> () {
             public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
                 if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
                         pw.print(getMessage("err.prefix"));
                     pw.print(" ");
                 }
                 pw.println(diagnostic.getMessage(null));
             }
         };
     }
     /** Result codes.
      */
     static final int
         EXIT_OK = 0,        // Compilation completed with no errors.
         EXIT_ERROR = 1,     // Completed but reported errors.
         EXIT_CMDERR = 2,    // Bad command-line arguments
         EXIT_SYSERR = 3,    // System error or resource exhaustion.
         EXIT_ABNORMAL = 4;  // Compiler terminated abnormally
     int run(String[] args) {
         try {
             handleOptions(args);
             // the following gives consistent behavior with javac
             if (classes == null || classes.size() == 0) {
                 if (options.help || options.version || options.fullVersion)
                     return EXIT_OK;
                 else
                     return EXIT_CMDERR;
             }
             boolean ok = run();
             return ok ? EXIT_OK : EXIT_ERROR;
         } catch (BadArgs e) {
             diagnosticListener.report(createDiagnostic(e.key, e.args));
             if (e.showUsage) {
                 log.println(getMessage("main.usage.summary", progname));
             }
             return EXIT_CMDERR;
         } catch (InternalError e) {
             Object[] e_args;
             if (e.getCause() == null)
                 e_args = e.args;
             else {
                 e_args = new Object[e.args.length + 1];
                 e_args[0] = e.getCause();
                 System.arraycopy(e.args, 0, e_args, 1, e.args.length);
             }
             diagnosticListener.report(createDiagnostic("err.internal.error", e_args));
             return EXIT_ABNORMAL;
         } finally {
             log.flush();
         }
     }
     public void handleOptions(String[] args) throws BadArgs {
         handleOptions(Arrays.asList(args), true);
     }
     private void handleOptions(Iterable<String> args, boolean allowClasses) throws BadArgs {
         if (log == null) {
             log = getPrintWriterForStream(System.out);
             if (diagnosticListener == null)
               diagnosticListener = getDiagnosticListenerForStream(System.err);
         } else {
             if (diagnosticListener == null)
               diagnosticListener = getDiagnosticListenerForWriter(log);
         }
         if (fileManager == null)
             fileManager = getDefaultFileManager(diagnosticListener, log);
         Iterator<String> iter = args.iterator();
         boolean noArgs = !iter.hasNext();
         while (iter.hasNext()) {
             String arg = iter.next();
             if (arg.startsWith("-"))
                 handleOption(arg, iter);
             else if (allowClasses) {
                 if (classes == null)
                     classes = new ArrayList<String>();
                 classes.add(arg);
                 while (iter.hasNext())
                     classes.add(iter.next());
             } else
                 throw new BadArgs("err.unknown.option", arg).showUsage(true);
         }
         if (!options.compat && options.accessOptions.size() > 1) {
             StringBuilder sb = new StringBuilder();
             for (String opt: options.accessOptions) {
                 if (sb.length() > 0)
                     sb.append(" ");
                 sb.append(opt);
             }
             throw new BadArgs("err.incompatible.options", sb);
         }
         if (options.ignoreSymbolFile && fileManager instanceof JavapFileManager)
             ((JavapFileManager) fileManager).setIgnoreSymbolFile(true);
         if ((classes == null || classes.size() == 0) &&
                 !(noArgs || options.help || options.version || options.fullVersion)) {
             throw new BadArgs("err.no.classes.specified");
         }
         if (noArgs || options.help)
             showHelp();
         if (options.version || options.fullVersion)
             showVersion(options.fullVersion);
     }
     private void handleOption(String name, Iterator<String> rest) throws BadArgs {
         for (Option o: recognizedOptions) {
             if (o.matches(name)) {
                 if (o.hasArg) {
                     if (rest.hasNext())
                         o.process(this, name, rest.next());
                     else
                         throw new BadArgs("err.missing.arg", name).showUsage(true);
                 } else
                     o.process(this, name, null);
                 if (o.ignoreRest()) {
                     while (rest.hasNext())
                         rest.next();
                 }
                 return;
             }
         }
         if (fileManager.handleOption(name, rest))
             return;
         throw new BadArgs("err.unknown.option", name).showUsage(true);
     }
     public Boolean call() {
         return run();
     }
     public boolean run() {
         if (classes == null || classes.size() == 0)
             return false;
         context.put(PrintWriter.class, log);
         ClassWriter classWriter = ClassWriter.instance(context);
         SourceWriter sourceWriter = SourceWriter.instance(context);
         sourceWriter.setFileManager(fileManager);
         boolean ok = true;
         for (String className: classes) {
             JavaFileObject fo;
             try {
                 if (className.endsWith(".class")) {
                     if (fileManager instanceof StandardJavaFileManager) {
                         StandardJavaFileManager sfm = (StandardJavaFileManager) fileManager;
                         fo = sfm.getJavaFileObjects(className).iterator().next();
                     } else {
                        diagnosticListener.report(createDiagnostic("err.not.standard.file.manager", className));
                        ok = false;
                        continue;
                     }
                 } else {
                     fo = getClassFileObject(className);
                     if (fo == null) {
                         // see if it is an inner class, by replacing dots to $, starting from the right
                         String cn = className;
                         int lastDot;
                         while (fo == null && (lastDot = cn.lastIndexOf(".")) != -1) {
                             cn = cn.substring(0, lastDot) + "$" + cn.substring(lastDot + 1);
                             fo = getClassFileObject(cn);
                         }
                     }
                     if (fo == null) {
                        diagnosticListener.report(createDiagnostic("err.class.not.found", className));
                        ok = false;
                        continue;
                     }
                 }
                 Attribute.Factory attributeFactory = new Attribute.Factory();
                 attributeFactory.setCompat(options.compat);
                 attributeFactory.setJSR277(options.jsr277);
                 InputStream in = fo.openInputStream();
                 SizeInputStream sizeIn = null;
                 MessageDigest md  = null;
                 if (options.sysInfo || options.verbose) {
                     md = MessageDigest.getInstance("MD5");
                     in = new DigestInputStream(in, md);
                     in = sizeIn = new SizeInputStream(in);
                 }
                 ClassFile cf = ClassFile.read(in, attributeFactory);
                 if (options.sysInfo || options.verbose) {
                     classWriter.setFile(fo.toUri());
                     classWriter.setLastModified(fo.getLastModified());
                     classWriter.setDigest("MD5", md.digest());
                     classWriter.setFileSize(sizeIn.size());
                 }
                 classWriter.write(cf);
             } catch (ConstantPoolException e) {
                 diagnosticListener.report(createDiagnostic("err.bad.constant.pool", className, e.getLocalizedMessage()));
                 ok = false;
             } catch (EOFException e) {
                 diagnosticListener.report(createDiagnostic("err.end.of.file", className));
                 ok = false;
             } catch (FileNotFoundException e) {
                 diagnosticListener.report(createDiagnostic("err.file.not.found", e.getLocalizedMessage()));
                 ok = false;
             } catch (IOException e) {
                 //e.printStackTrace();
                 Object msg = e.getLocalizedMessage();
                 if (msg == null)
                     msg = e;
                 diagnosticListener.report(createDiagnostic("err.ioerror", className, msg));
                 ok = false;
             } catch (Throwable t) {
                 StringWriter sw = new StringWriter();
                 PrintWriter pw = new PrintWriter(sw);
                 t.printStackTrace(pw);
                 pw.close();
                 diagnosticListener.report(createDiagnostic("err.crash", t.toString(), sw.toString()));
                 ok = false;
             }
         }
         return ok;
     }
     private JavaFileManager getDefaultFileManager(final DiagnosticListener<? super JavaFileObject> dl, PrintWriter log) {
         return JavapFileManager.create(dl, log, options);
     }
     private JavaFileObject getClassFileObject(String className) throws IOException {
         JavaFileObject fo;
         fo = fileManager.getJavaFileForInput(StandardLocation.PLATFORM_CLASS_PATH, className, JavaFileObject.Kind.CLASS);
         if (fo == null)
             fo = fileManager.getJavaFileForInput(StandardLocation.CLASS_PATH, className, JavaFileObject.Kind.CLASS);
         return fo;
     }
     private void showHelp() {
         log.println(getMessage("main.usage", progname));
         for (Option o: recognizedOptions) {
             String name = o.aliases[0].substring(1); // there must always be at least one name
             if (name.startsWith("X") || name.equals("fullversion") || name.equals("h") || name.equals("verify"))
                 continue;
             log.println(getMessage("main.opt." + name));
         }
         String[] fmOptions = { "-classpath", "-bootclasspath" };
         for (String o: fmOptions) {
             if (fileManager.isSupportedOption(o) == -1)
                 continue;
             String name = o.substring(1);
             log.println(getMessage("main.opt." + name));
         }
     }
     private void showVersion(boolean full) {
         log.println(version(full ? "full" : "release"));
     }
     private static final String versionRBName = "com.sun.tools.javap.resources.version";
     private static ResourceBundle versionRB;
     private String version(String key) {
         // key=version:  mm.nn.oo[-milestone]
         // key=full:     mm.mm.oo[-milestone]-build
         if (versionRB == null) {
             try {
                 versionRB = ResourceBundle.getBundle(versionRBName);
             } catch (MissingResourceException e) {
                 return getMessage("version.resource.missing", System.getProperty("java.version"));
             }
         }
         try {
             return versionRB.getString(key);
         }
         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 JavapTask.this.getMessage(locale, key, args);
             }
         };
     }
     public String getMessage(String key, Object... args) {
         return getMessage(task_locale, key, args);
     }
     public 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.javap.resources.javap", locale);
                 bundles.put(locale, b);
             } catch (MissingResourceException e) {
                 throw new InternalError("Cannot find javap resource bundle for locale " + locale);
             }
         }
         try {
             return MessageFormat.format(b.getString(key), args);
         } catch (MissingResourceException e) {
             throw new InternalError(e, key);
         }
     }
     Context context;
     JavaFileManager fileManager;
     PrintWriter log;
     DiagnosticListener<? super JavaFileObject> diagnosticListener;
     List<String> classes;
     Options options;
     //ResourceBundle bundle;
     Locale task_locale;
     Map<Locale, ResourceBundle> bundles;
     private static final String progname = "javap";
     private static class SizeInputStream extends FilterInputStream {
         SizeInputStream(InputStream in) {
             super(in);
         }
         int size() {
             return size;
         }
         @Override
         public int read(byte[] buf, int offset, int length) throws IOException {
             int n = super.read(buf, offset, length);
             if (n > 0)
                 size += n;
             return n;
         }
         @Override
         public int read() throws IOException {
             int b = super.read();
             size += 1;
             return b;
         }
         private int size;
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javap/JavapTask.java@cd0630109de5 (annotated)

src/share/classes/com/sun/tools/javap/JavapTask.java