jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/doclint/DocLint.java@37031963493e (annotated)

src/share/classes/com/sun/tools/doclint/DocLint.java@37031963493e (annotated)

src/share/classes/com/sun/tools/doclint/DocLint.java

Fri, 12 Jul 2013 13:11:12 -0700

author: jjg
date: Fri, 12 Jul 2013 13:11:12 -0700
changeset 1895: 37031963493e
parent 1885: d6158f8d7235
child 1913: 1476d54fdc61
permissions: -rw-r--r--

8020278: NPE in javadoc
Reviewed-by: mcimadamore, vromero

 /*
  * Copyright (c) 2012, 2013, 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.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle 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 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.sun.tools.doclint;
 import java.io.File;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Pattern;
 import javax.lang.model.element.Name;
 import javax.tools.StandardLocation;
 import com.sun.source.doctree.DocCommentTree;
 import com.sun.source.tree.ClassTree;
 import com.sun.source.tree.CompilationUnitTree;
 import com.sun.source.tree.MethodTree;
 import com.sun.source.tree.Tree;
 import com.sun.source.tree.VariableTree;
 import com.sun.source.util.JavacTask;
 import com.sun.source.util.Plugin;
 import com.sun.source.util.TaskEvent;
 import com.sun.source.util.TaskListener;
 import com.sun.source.util.TreePath;
 import com.sun.source.util.TreePathScanner;
 import com.sun.tools.javac.api.JavacTaskImpl;
 import com.sun.tools.javac.api.JavacTool;
 import com.sun.tools.javac.file.JavacFileManager;
 import com.sun.tools.javac.main.JavaCompiler;
 import com.sun.tools.javac.util.Context;
 /**
  * Multi-function entry point for the doc check utility.
  *
  * This class can be invoked in the following ways:
  * <ul>
  * <li>From the command line
  * <li>From javac, as a plugin
  * <li>Directly, via a simple API
  * </ul>
  *
  * <p><b>This is NOT part of any supported API.
  * 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></p>
  */
 public class DocLint implements Plugin {
     public static final String XMSGS_OPTION = "-Xmsgs";
     public static final String XMSGS_CUSTOM_PREFIX = "-Xmsgs:";
     private static final String STATS = "-stats";
     public static final String XIMPLICIT_HEADERS = "-XimplicitHeaders:";
     // <editor-fold defaultstate="collapsed" desc="Command-line entry point">
     public static void main(String... args) {
         DocLint dl = new DocLint();
         try {
             dl.run(args);
         } catch (BadArgs e) {
             System.err.println(e.getMessage());
             System.exit(1);
         } catch (IOException e) {
             System.err.println(dl.localize("dc.main.ioerror", e.getLocalizedMessage()));
             System.exit(2);
         }
     }
     // </editor-fold>
     // <editor-fold defaultstate="collapsed" desc="Simple API">
     public class BadArgs extends Exception {
         private static final long serialVersionUID = 0;
         BadArgs(String code, Object... args) {
             super(localize(code, args));
             this.code = code;
             this.args = args;
         }
         final String code;
         final Object[] args;
     }
     /**
      * Simple API entry point.
      */
     public void run(String... args) throws BadArgs, IOException {
         PrintWriter out = new PrintWriter(System.out);
         try {
             run(out, args);
         } finally {
             out.flush();
         }
     }
     public void run(PrintWriter out, String... args) throws BadArgs, IOException {
         env = new Env();
         processArgs(args);
         if (needHelp)
             showHelp(out);
         if (javacFiles.isEmpty()) {
             if (!needHelp)
                 out.println(localize("dc.main.no.files.given"));
         }
         JavacTool tool = JavacTool.create();
         JavacFileManager fm = new JavacFileManager(new Context(), false, null);
         fm.setSymbolFileEnabled(false);
         fm.setLocation(StandardLocation.PLATFORM_CLASS_PATH, javacBootClassPath);
         fm.setLocation(StandardLocation.CLASS_PATH, javacClassPath);
         fm.setLocation(StandardLocation.SOURCE_PATH, javacSourcePath);
         JavacTask task = tool.getTask(out, fm, null, javacOpts, null,
                 fm.getJavaFileObjectsFromFiles(javacFiles));
         Iterable<? extends CompilationUnitTree> units = task.parse();
         ((JavacTaskImpl) task).enter();
         env.init(task);
         checker = new Checker(env);
         DeclScanner ds = new DeclScanner() {
             @Override
             void visitDecl(Tree tree, Name name) {
                 TreePath p = getCurrentPath();
                 DocCommentTree dc = env.trees.getDocCommentTree(p);
                 checker.scan(dc, p);
             }
         };
         ds.scan(units, null);
         reportStats(out);
         Context ctx = ((JavacTaskImpl) task).getContext();
         JavaCompiler c = JavaCompiler.instance(ctx);
         c.printCount("error", c.errorCount());
         c.printCount("warn", c.warningCount());
     }
     void processArgs(String... args) throws BadArgs {
         javacOpts = new ArrayList<String>();
         javacFiles = new ArrayList<File>();
         if (args.length == 0)
             needHelp = true;
         for (int i = 0; i < args.length; i++) {
             String arg = args[i];
             if (arg.matches("-Xmax(errs|warns)") && i + 1 < args.length) {
                 if (args[++i].matches("[0-9]+")) {
                     javacOpts.add(arg);
                     javacOpts.add(args[i]);
                 } else {
                     throw new BadArgs("dc.bad.value.for.option", arg, args[i]);
                 }
             } else if (arg.equals(STATS)) {
                 env.messages.setStatsEnabled(true);
             } else if (arg.equals("-bootclasspath") && i + 1 < args.length) {
                 javacBootClassPath = splitPath(args[++i]);
             } else if (arg.equals("-classpath") && i + 1 < args.length) {
                 javacClassPath = splitPath(args[++i]);
             } else if (arg.equals("-cp") && i + 1 < args.length) {
                 javacClassPath = splitPath(args[++i]);
             } else if (arg.equals("-sourcepath") && i + 1 < args.length) {
                 javacSourcePath = splitPath(args[++i]);
             } else if (arg.equals(XMSGS_OPTION)) {
                 env.messages.setOptions(null);
             } else if (arg.startsWith(XMSGS_CUSTOM_PREFIX)) {
                 env.messages.setOptions(arg.substring(arg.indexOf(":") + 1));
             } else if (arg.equals("-h") || arg.equals("-help") || arg.equals("--help")
                     || arg.equals("-?") || arg.equals("-usage")) {
                 needHelp = true;
             } else if (arg.startsWith("-")) {
                 throw new BadArgs("dc.bad.option", arg);
             } else {
                 while (i < args.length)
                     javacFiles.add(new File(args[i++]));
             }
         }
     }
     void showHelp(PrintWriter out) {
         String msg = localize("dc.main.usage");
         for (String line: msg.split("\n"))
             out.println(line);
     }
     List<File> splitPath(String path) {
         List<File> files = new ArrayList<File>();
         for (String f: path.split(File.pathSeparator)) {
             if (f.length() > 0)
                 files.add(new File(f));
         }
         return files;
     }
     List<File> javacBootClassPath;
     List<File> javacClassPath;
     List<File> javacSourcePath;
     List<String> javacOpts;
     List<File> javacFiles;
     boolean needHelp = false;
     // </editor-fold>
     // <editor-fold defaultstate="collapsed" desc="javac Plugin">
     @Override
     public String getName() {
         return "doclint";
     }
     @Override
     public void init(JavacTask task, String... args) {
         init(task, args, true);
     }
     // </editor-fold>
     // <editor-fold defaultstate="collapsed" desc="Embedding API">
     public void init(JavacTask task, String[] args, boolean addTaskListener) {
         env = new Env();
         for (int i = 0; i < args.length; i++) {
             String arg = args[i];
             if (arg.equals(XMSGS_OPTION)) {
                 env.messages.setOptions(null);
             } else if (arg.startsWith(XMSGS_CUSTOM_PREFIX)) {
                 env.messages.setOptions(arg.substring(arg.indexOf(":") + 1));
             } else if (arg.matches(XIMPLICIT_HEADERS + "[1-6]")) {
                 char ch = arg.charAt(arg.length() - 1);
                 env.setImplicitHeaders(Character.digit(ch, 10));
             } else
                 throw new IllegalArgumentException(arg);
         }
         env.init(task);
         checker = new Checker(env);
         if (addTaskListener) {
             final DeclScanner ds = new DeclScanner() {
                 @Override
                 void visitDecl(Tree tree, Name name) {
                     TreePath p = getCurrentPath();
                     DocCommentTree dc = env.trees.getDocCommentTree(p);
                     checker.scan(dc, p);
                 }
             };
             TaskListener tl = new TaskListener() {
                 @Override
                 public void started(TaskEvent e) {
                     return;
                 }
                 @Override
                 public void finished(TaskEvent e) {
                     switch (e.getKind()) {
                         case ENTER:
                             ds.scan(e.getCompilationUnit(), null);
                     }
                 }
             };
             task.addTaskListener(tl);
         }
     }
     public void scan(TreePath p) {
         DocCommentTree dc = env.trees.getDocCommentTree(p);
         checker.scan(dc, p);
     }
     public void reportStats(PrintWriter out) {
         env.messages.reportStats(out);
     }
     // </editor-fold>
     Env env;
     Checker checker;
     public static boolean isValidOption(String opt) {
         if (opt.equals(XMSGS_OPTION))
            return true;
         if (opt.startsWith(XMSGS_CUSTOM_PREFIX))
            return Messages.Options.isValidOptions(opt.substring(XMSGS_CUSTOM_PREFIX.length()));
         return false;
     }
     private String localize(String code, Object... args) {
         Messages m = (env != null) ? env.messages : new Messages(null);
         return m.localize(code, args);
     }
     // <editor-fold defaultstate="collapsed" desc="DeclScanner">
     static abstract class DeclScanner extends TreePathScanner<Void, Void> {
         abstract void visitDecl(Tree tree, Name name);
         @Override
         public Void visitCompilationUnit(CompilationUnitTree tree, Void ignore) {
             if (tree.getPackageName() != null) {
                 visitDecl(tree, null);
             }
             return super.visitCompilationUnit(tree, ignore);
         }
         @Override
         public Void visitClass(ClassTree tree, Void ignore) {
             visitDecl(tree, tree.getSimpleName());
             return super.visitClass(tree, ignore);
         }
         @Override
         public Void visitMethod(MethodTree tree, Void ignore) {
             visitDecl(tree, tree.getName());
             //return super.visitMethod(tree, ignore);
             return null;
         }
         @Override
         public Void visitVariable(VariableTree tree, Void ignore) {
             visitDecl(tree, tree.getName());
             return super.visitVariable(tree, ignore);
         }
     }
     // </editor-fold>
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/doclint/DocLint.java@37031963493e (annotated)

src/share/classes/com/sun/tools/doclint/DocLint.java