jdk8-mips64-public/langtools: test/tools/javac/failover/CheckAttributedTree.java@7375d4979bd3

     1 /*

     2  * Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 import com.sun.source.util.TaskEvent;

    25 import java.awt.BorderLayout;

    26 import java.awt.Color;

    27 import java.awt.Dimension;

    28 import java.awt.EventQueue;

    29 import java.awt.Font;

    30 import java.awt.GridBagConstraints;

    31 import java.awt.GridBagLayout;

    32 import java.awt.Rectangle;

    33 import java.awt.event.ActionEvent;

    34 import java.awt.event.ActionListener;

    35 import java.awt.event.MouseAdapter;

    36 import java.awt.event.MouseEvent;

    37 import javax.swing.DefaultComboBoxModel;

    38 import javax.swing.JComboBox;

    39 import javax.swing.JComponent;

    40 import javax.swing.JFrame;

    41 import javax.swing.JLabel;

    42 import javax.swing.JPanel;

    43 import javax.swing.JScrollPane;

    44 import javax.swing.JTextArea;

    45 import javax.swing.JTextField;

    46 import javax.swing.SwingUtilities;

    47 import javax.swing.event.CaretEvent;

    48 import javax.swing.event.CaretListener;

    49 import javax.swing.text.BadLocationException;

    50 import javax.swing.text.DefaultHighlighter;

    51 import javax.swing.text.Highlighter;

    52 import java.io.File;

    53 import java.io.IOException;

    54 import java.io.PrintStream;

    55 import java.io.PrintWriter;

    56 import java.io.StringWriter;

    57 import java.lang.reflect.Field;

    58 import java.util.ArrayList;

    59 import java.util.List;

    60 import javax.tools.Diagnostic;

    61 import javax.tools.DiagnosticListener;

    62 import javax.tools.JavaFileObject;

    63 import javax.tools.StandardJavaFileManager;

    65 import com.sun.source.tree.CompilationUnitTree;

    66 import com.sun.source.util.JavacTask;

    67 import com.sun.source.util.TaskListener;

    68 import com.sun.tools.javac.api.JavacTool;

    69 import com.sun.tools.javac.code.Symbol;

    70 import com.sun.tools.javac.code.Type;

    71 import com.sun.tools.javac.parser.EndPosTable;

    72 import com.sun.tools.javac.tree.JCTree;

    73 import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;

    74 import com.sun.tools.javac.tree.JCTree.JCImport;

    75 import com.sun.tools.javac.tree.TreeInfo;

    76 import com.sun.tools.javac.tree.TreeScanner;

    77 import com.sun.tools.javac.util.Pair;

    79 import java.util.Arrays;

    80 import java.util.HashSet;

    81 import java.util.Set;

    82 import javax.lang.model.element.Element;

    84 import static com.sun.tools.javac.tree.JCTree.Tag.*;

    86 /**

    87  * Utility and test program to check validity of tree positions for tree nodes.

    88  * The program can be run standalone, or as a jtreg test.  In standalone mode,

    89  * errors can be displayed in a gui viewer. For info on command line args,

    90  * run program with no args.

    91  *

    92  * <p>

    93  * jtreg: Note that by using the -r switch in the test description below, this test

    94  * will process all java files in the langtools/test directory, thus implicitly

    95  * covering any new language features that may be tested in this test suite.

    96  */

    98 /*

    99  * @test

   100  * @bug 6970584

   101  * @summary assorted position errors in compiler syntax trees

   102  * @run main CheckAttributedTree -q -r -et ERRONEOUS .

   103  */

   104 public class CheckAttributedTree {

   105     /**

   106      * Main entry point.

   107      * If test.src is set, program runs in jtreg mode, and will throw an Error

   108      * if any errors arise, otherwise System.exit will be used, unless the gui

   109      * viewer is being used. In jtreg mode, the default base directory for file

   110      * args is the value of ${test.src}. In jtreg mode, the -r option can be

   111      * given to change the default base directory to the root test directory.

   112      */

   113     public static void main(String... args) {

   114         String testSrc = System.getProperty("test.src");

   115         File baseDir = (testSrc == null) ? null : new File(testSrc);

   116         boolean ok = new CheckAttributedTree().run(baseDir, args);

   117         if (!ok) {

   118             if (testSrc != null)  // jtreg mode

   119                 throw new Error("failed");

   120             else

   121                 System.exit(1);

   122         }

   123     }

   125     /**

   126      * Run the program. A base directory can be provided for file arguments.

   127      * In jtreg mode, the -r option can be given to change the default base

   128      * directory to the test root directory. For other options, see usage().

   129      * @param baseDir base directory for any file arguments.

   130      * @param args command line args

   131      * @return true if successful or in gui mode

   132      */

   133     boolean run(File baseDir, String... args) {

   134         if (args.length == 0) {

   135             usage(System.out);

   136             return true;

   137         }

   139         List<File> files = new ArrayList<File>();

   140         for (int i = 0; i < args.length; i++) {

   141             String arg = args[i];

   142             if (arg.equals("-encoding") && i + 1 < args.length)

   143                 encoding = args[++i];

   144             else if (arg.equals("-gui"))

   145                 gui = true;

   146             else if (arg.equals("-q"))

   147                 quiet = true;

   148             else if (arg.equals("-v"))

   149                 verbose = true;

   150             else if (arg.equals("-t") && i + 1 < args.length)

   151                 tags.add(args[++i]);

   152             else if (arg.equals("-ef") && i + 1 < args.length)

   153                 excludeFiles.add(new File(baseDir, args[++i]));

   154             else if (arg.equals("-et") && i + 1 < args.length)

   155                 excludeTags.add(args[++i]);

   156             else if (arg.equals("-r")) {

   157                 if (excludeFiles.size() > 0)

   158                     throw new Error("-r must be used before -ef");

   159                 File d = baseDir;

   160                 while (!new File(d, "TEST.ROOT").exists()) {

   161                     if (d == null)

   162                         throw new Error("cannot find TEST.ROOT");

   163                     d = d.getParentFile();

   164                 }

   165                 baseDir = d;

   166             }

   167             else if (arg.startsWith("-"))

   168                 throw new Error("unknown option: " + arg);

   169             else {

   170                 while (i < args.length)

   171                     files.add(new File(baseDir, args[i++]));

   172             }

   173         }

   175         for (File file: files) {

   176             if (file.exists())

   177                 test(file);

   178             else

   179                 error("File not found: " + file);

   180         }

   182         if (fileCount != 1)

   183             System.err.println(fileCount + " files read");

   184         if (errors > 0)

   185             System.err.println(errors + " errors");

   187         return (gui || errors == 0);

   188     }

   190     /**

   191      * Print command line help.

   192      * @param out output stream

   193      */

   194     void usage(PrintStream out) {

   195         out.println("Usage:");

   196         out.println("  java CheckAttributedTree options... files...");

   197         out.println("");

   198         out.println("where options include:");

   199         out.println("-q        Quiet: don't report on inapplicable files");

   200         out.println("-gui      Display returns in a GUI viewer");

   201         out.println("-v        Verbose: report on files as they are being read");

   202         out.println("-t tag    Limit checks to tree nodes with this tag");

   203         out.println("          Can be repeated if desired");

   204         out.println("-ef file  Exclude file or directory");

   205         out.println("-et tag   Exclude tree nodes with given tag name");

   206         out.println("");

   207         out.println("files may be directories or files");

   208         out.println("directories will be scanned recursively");

   209         out.println("non java files, or java files which cannot be parsed, will be ignored");

   210         out.println("");

   211     }

   213     /**

   214      * Test a file. If the file is a directory, it will be recursively scanned

   215      * for java files.

   216      * @param file the file or directory to test

   217      */

   218     void test(File file) {

   219         if (excludeFiles.contains(file)) {

   220             if (!quiet)

   221                 error("File " + file + " excluded");

   222             return;

   223         }

   225         if (file.isDirectory()) {

   226             for (File f: file.listFiles()) {

   227                 test(f);

   228             }

   229             return;

   230         }

   232         if (file.isFile() && file.getName().endsWith(".java")) {

   233             try {

   234                 if (verbose)

   235                     System.err.println(file);

   236                 fileCount++;

   237                 NPETester p = new NPETester();

   238                 p.test(read(file));

   239             } catch (AttributionException e) {

   240                 if (!quiet) {

   241                     error("Error attributing " + file + "\n" + e.getMessage());

   242                 }

   243             } catch (IOException e) {

   244                 error("Error reading " + file + ": " + e);

   245             }

   246             return;

   247         }

   249         if (!quiet)

   250             error("File " + file + " ignored");

   251     }

   253     // See CR:  6982992 Tests CheckAttributedTree.java, JavacTreeScannerTest.java, and SourceTreeeScannerTest.java timeout

   254     StringWriter sw = new StringWriter();

   255     PrintWriter pw = new PrintWriter(sw);

   256     Reporter r = new Reporter(pw);

   257     JavacTool tool = JavacTool.create();

   258     StandardJavaFileManager fm = tool.getStandardFileManager(r, null, null);

   260     /**

   261      * Read a file.

   262      * @param file the file to be read

   263      * @return the tree for the content of the file

   264      * @throws IOException if any IO errors occur

   265      * @throws TreePosTest.ParseException if any errors occur while parsing the file

   266      */

   267     List<Pair<JCCompilationUnit, JCTree>> read(File file) throws IOException, AttributionException {

   268         JavacTool tool = JavacTool.create();

   269         r.errors = 0;

   270         Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(file);

   271         String[] opts = { "-XDshouldStopPolicy=ATTR", "-XDverboseCompilePolicy" };

   272         JavacTask task = tool.getTask(pw, fm, r, Arrays.asList(opts), null, files);

   273         final List<Element> analyzedElems = new ArrayList<>();

   274         task.setTaskListener(new TaskListener() {

   275             public void started(TaskEvent e) {

   276                 if (e.getKind() == TaskEvent.Kind.ANALYZE)

   277                         analyzedElems.add(e.getTypeElement());

   278             }

   279             public void finished(TaskEvent e) { }

   280         });

   282         try {

   283             Iterable<? extends CompilationUnitTree> trees = task.parse();

   284             task.analyze();

   285             List<Pair<JCCompilationUnit, JCTree>> res = new ArrayList<>();

   286             //System.out.println("Try to add pairs. Elems are " + analyzedElems);

   287             for (CompilationUnitTree t : trees) {

   288                JCCompilationUnit cu = (JCCompilationUnit)t;

   289                for (JCTree def : cu.defs) {

   290                    if (def.hasTag(CLASSDEF) &&

   291                            analyzedElems.contains(((JCTree.JCClassDecl)def).sym)) {

   292                        //System.out.println("Adding pair...");

   293                        res.add(new Pair<>(cu, def));

   294                    }

   295                }

   296             }

   297             return res;

   298         }

   299         catch (Throwable t) {

   300             throw new AttributionException("Exception while attributing file: " + file);

   301         }

   302     }

   304     /**

   305      * Report an error. When the program is complete, the program will either

   306      * exit or throw an Error if any errors have been reported.

   307      * @param msg the error message

   308      */

   309     void error(String msg) {

   310         System.err.println(msg);

   311         errors++;

   312     }

   314     /** Number of files that have been analyzed. */

   315     int fileCount;

   316     /** Number of errors reported. */

   317     int errors;

   318     /** Flag: don't report irrelevant files. */

   319     boolean quiet;

   320     /** Flag: show errors in GUI viewer. */

   321     boolean gui;

   322     /** The GUI viewer for errors. */

   323     Viewer viewer;

   324     /** Flag: report files as they are processed. */

   325     boolean verbose;

   326     /** Option: encoding for test files. */

   327     String encoding;

   328     /** The set of tags for tree nodes to be analyzed; if empty, all tree nodes

   329      * are analyzed. */

   330     Set<String> tags = new HashSet<String>();

   331     /** Set of files and directories to be excluded from analysis. */

   332     Set<File> excludeFiles = new HashSet<File>();

   333     /** Set of tag names to be excluded from analysis. */

   334     Set<String> excludeTags = new HashSet<String>();

   335     /** Utility class for trees */

   336     TreeUtil treeUtil = new TreeUtil();

   338     /**

   339      * Main class for testing assertions concerning types/symbol

   340      * left uninitialized after attribution

   341      */

   342     private class NPETester extends TreeScanner {

   343         void test(List<Pair<JCCompilationUnit, JCTree>> trees) {

   344             for (Pair<JCCompilationUnit, JCTree> p : trees) {

   345                 sourcefile = p.fst.sourcefile;

   346                 endPosTable = p.fst.endPositions;

   347                 encl = new Info(p.snd, endPosTable);

   348                 p.snd.accept(this);

   349             }

   350         }

   352         @Override

   353         public void scan(JCTree tree) {

   354             if (tree == null ||

   355                     excludeTags.contains(treeUtil.nameFromTag(tree.getTag()))) {

   356                 return;

   357             }

   359             Info self = new Info(tree, endPosTable);

   360             check(!mandatoryType(tree) ||

   361                     (tree.type != null &&

   362                     checkFields(tree)),

   363                     "'null' found in tree ",

   364                     self);

   366             Info prevEncl = encl;

   367             encl = self;

   368             tree.accept(this);

   369             encl = prevEncl;

   370         }

   372         private boolean mandatoryType(JCTree that) {

   373             return that instanceof JCTree.JCExpression ||

   374                     that.hasTag(VARDEF) ||

   375                     that.hasTag(METHODDEF) ||

   376                     that.hasTag(CLASSDEF);

   377         }

   379         private final List<String> excludedFields = Arrays.asList("varargsElement");

   381         void check(boolean ok, String label, Info self) {

   382             if (!ok) {

   383                 if (gui) {

   384                     if (viewer == null)

   385                         viewer = new Viewer();

   386                     viewer.addEntry(sourcefile, label, encl, self);

   387                 }

   388                 error(label + self.toString() + " encl: " + encl.toString() + " in file: " + sourcefile + "  " + self.tree);

   389             }

   390         }

   392         boolean checkFields(JCTree t) {

   393             List<Field> fieldsToCheck = treeUtil.getFieldsOfType(t,

   394                     excludedFields,

   395                     Symbol.class,

   396                     Type.class);

   397             for (Field f : fieldsToCheck) {

   398                 try {

   399                     if (f.get(t) == null) {

   400                         return false;

   401                     }

   402                 }

   403                 catch (IllegalAccessException e) {

   404                     System.err.println("Cannot read field: " + f);

   405                     //swallow it

   406                 }

   407             }

   408             return true;

   409         }

   411         @Override

   412         public void visitImport(JCImport tree) { }

   414         @Override

   415         public void visitTopLevel(JCCompilationUnit tree) {

   416             scan(tree.defs);

   417         }

   419         JavaFileObject sourcefile;

   420         EndPosTable endPosTable;

   421         Info encl;

   422     }

   424     /**

   425      * Utility class providing easy access to position and other info for a tree node.

   426      */

   427     private class Info {

   428         Info() {

   429             tree = null;

   430             tag = ERRONEOUS;

   431             start = 0;

   432             pos = 0;

   433             end = Integer.MAX_VALUE;

   434         }

   436         Info(JCTree tree, EndPosTable endPosTable) {

   437             this.tree = tree;

   438             tag = tree.getTag();

   439             start = TreeInfo.getStartPos(tree);

   440             pos = tree.pos;

   441             end = TreeInfo.getEndPos(tree, endPosTable);

   442         }

   444         @Override

   445         public String toString() {

   446             return treeUtil.nameFromTag(tree.getTag()) + "[start:" + start + ",pos:" + pos + ",end:" + end + "]";

   447         }

   449         final JCTree tree;

   450         final JCTree.Tag tag;

   451         final int start;

   452         final int pos;

   453         final int end;

   454     }

   456     /**

   457      * Names for tree tags.

   458      */

   459     private static class TreeUtil {

   460         String nameFromTag(JCTree.Tag tag) {

   461             String name = tag.name();

   462             return (name == null) ? "??" : name;

   463         }

   465         List<Field> getFieldsOfType(JCTree t, List<String> excludeNames, Class<?>... types) {

   466             List<Field> buf = new ArrayList<Field>();

   467             for (Field f : t.getClass().getDeclaredFields()) {

   468                 if (!excludeNames.contains(f.getName())) {

   469                     for (Class<?> type : types) {

   470                         if (type.isAssignableFrom(f.getType())) {

   471                             f.setAccessible(true);

   472                             buf.add(f);

   473                             break;

   474                         }

   475                     }

   476                 }

   477             }

   478             return buf;

   479         }

   480     }

   482     /**

   483      * Thrown when errors are found parsing a java file.

   484      */

   485     private static class ParseException extends Exception {

   486         ParseException(String msg) {

   487             super(msg);

   488         }

   489     }

   491     private static class AttributionException extends Exception {

   492         AttributionException(String msg) {

   493             super(msg);

   494         }

   495     }

   497     /**

   498      * DiagnosticListener to report diagnostics and count any errors that occur.

   499      */

   500     private static class Reporter implements DiagnosticListener<JavaFileObject> {

   501         Reporter(PrintWriter out) {

   502             this.out = out;

   503         }

   505         public void report(Diagnostic<? extends JavaFileObject> diagnostic) {

   506             out.println(diagnostic);

   507             switch (diagnostic.getKind()) {

   508                 case ERROR:

   509                     errors++;

   510             }

   511         }

   512         int errors;

   513         PrintWriter out;

   514     }

   516     /**

   517      * GUI viewer for issues found by TreePosTester. The viewer provides a drop

   518      * down list for selecting error conditions, a header area providing details

   519      * about an error, and a text area with the ranges of text highlighted as

   520      * appropriate.

   521      */

   522     private class Viewer extends JFrame {

   523         /**

   524          * Create a viewer.

   525          */

   526         Viewer() {

   527             initGUI();

   528         }

   530         /**

   531          * Add another entry to the list of errors.

   532          * @param file The file containing the error

   533          * @param check The condition that was being tested, and which failed

   534          * @param encl the enclosing tree node

   535          * @param self the tree node containing the error

   536          */

   537         void addEntry(JavaFileObject file, String check, Info encl, Info self) {

   538             Entry e = new Entry(file, check, encl, self);

   539             DefaultComboBoxModel m = (DefaultComboBoxModel) entries.getModel();

   540             m.addElement(e);

   541             if (m.getSize() == 1)

   542                 entries.setSelectedItem(e);

   543         }

   545         /**

   546          * Initialize the GUI window.

   547          */

   548         private void initGUI() {

   549             JPanel head = new JPanel(new GridBagLayout());

   550             GridBagConstraints lc = new GridBagConstraints();

   551             GridBagConstraints fc = new GridBagConstraints();

   552             fc.anchor = GridBagConstraints.WEST;

   553             fc.fill = GridBagConstraints.HORIZONTAL;

   554             fc.gridwidth = GridBagConstraints.REMAINDER;

   556             entries = new JComboBox();

   557             entries.addActionListener(new ActionListener() {

   558                 public void actionPerformed(ActionEvent e) {

   559                     showEntry((Entry) entries.getSelectedItem());

   560                 }

   561             });

   562             fc.insets.bottom = 10;

   563             head.add(entries, fc);

   564             fc.insets.bottom = 0;

   565             head.add(new JLabel("check:"), lc);

   566             head.add(checkField = createTextField(80), fc);

   567             fc.fill = GridBagConstraints.NONE;

   568             head.add(setBackground(new JLabel("encl:"), enclColor), lc);

   569             head.add(enclPanel = new InfoPanel(), fc);

   570             head.add(setBackground(new JLabel("self:"), selfColor), lc);

   571             head.add(selfPanel = new InfoPanel(), fc);

   572             add(head, BorderLayout.NORTH);

   574             body = new JTextArea();

   575             body.setFont(Font.decode(Font.MONOSPACED));

   576             body.addCaretListener(new CaretListener() {

   577                 public void caretUpdate(CaretEvent e) {

   578                     int dot = e.getDot();

   579                     int mark = e.getMark();

   580                     if (dot == mark)

   581                         statusText.setText("dot: " + dot);

   582                     else

   583                         statusText.setText("dot: " + dot + ", mark:" + mark);

   584                 }

   585             });

   586             JScrollPane p = new JScrollPane(body,

   587                     JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,

   588                     JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

   589             p.setPreferredSize(new Dimension(640, 480));

   590             add(p, BorderLayout.CENTER);

   592             statusText = createTextField(80);

   593             add(statusText, BorderLayout.SOUTH);

   595             pack();

   596             setLocationRelativeTo(null); // centered on screen

   597             setVisible(true);

   598             setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

   599         }

   601         /** Show an entry that has been selected. */

   602         private void showEntry(Entry e) {

   603             try {

   604                 // update simple fields

   605                 setTitle(e.file.getName());

   606                 checkField.setText(e.check);

   607                 enclPanel.setInfo(e.encl);

   608                 selfPanel.setInfo(e.self);

   609                 // show file text with highlights

   610                 body.setText(e.file.getCharContent(true).toString());

   611                 Highlighter highlighter = body.getHighlighter();

   612                 highlighter.removeAllHighlights();

   613                 addHighlight(highlighter, e.encl, enclColor);

   614                 addHighlight(highlighter, e.self, selfColor);

   615                 scroll(body, getMinPos(enclPanel.info, selfPanel.info));

   616             } catch (IOException ex) {

   617                 body.setText("Cannot read " + e.file.getName() + ": " + e);

   618             }

   619         }

   621         /** Create a test field. */

   622         private JTextField createTextField(int width) {

   623             JTextField f = new JTextField(width);

   624             f.setEditable(false);

   625             f.setBorder(null);

   626             return f;

   627         }

   629         /** Add a highlighted region based on the positions in an Info object. */

   630         private void addHighlight(Highlighter h, Info info, Color c) {

   631             int start = info.start;

   632             int end = info.end;

   633             if (start == -1 && end == -1)

   634                 return;

   635             if (start == -1)

   636                 start = end;

   637             if (end == -1)

   638                 end = start;

   639             try {

   640                 h.addHighlight(info.start, info.end,

   641                         new DefaultHighlighter.DefaultHighlightPainter(c));

   642                 if (info.pos != -1) {

   643                     Color c2 = new Color(c.getRed(), c.getGreen(), c.getBlue(), (int)(.4f * 255)); // 40%

   644                     h.addHighlight(info.pos, info.pos + 1,

   645                         new DefaultHighlighter.DefaultHighlightPainter(c2));

   646                 }

   647             } catch (BadLocationException e) {

   648                 e.printStackTrace();

   649             }

   650         }

   652         /** Get the minimum valid position in a set of info objects. */

   653         private int getMinPos(Info... values) {

   654             int i = Integer.MAX_VALUE;

   655             for (Info info: values) {

   656                 if (info.start >= 0) i = Math.min(i, info.start);

   657                 if (info.pos   >= 0) i = Math.min(i, info.pos);

   658                 if (info.end   >= 0) i = Math.min(i, info.end);

   659             }

   660             return (i == Integer.MAX_VALUE) ? 0 : i;

   661         }

   663         /** Set the background on a component. */

   664         private JComponent setBackground(JComponent comp, Color c) {

   665             comp.setOpaque(true);

   666             comp.setBackground(c);

   667             return comp;

   668         }

   670         /** Scroll a text area to display a given position near the middle of the visible area. */

   671         private void scroll(final JTextArea t, final int pos) {

   672             // Using invokeLater appears to give text a chance to sort itself out

   673             // before the scroll happens; otherwise scrollRectToVisible doesn't work.

   674             // Maybe there's a better way to sync with the text...

   675             EventQueue.invokeLater(new Runnable() {

   676                 public void run() {

   677                     try {

   678                         Rectangle r = t.modelToView(pos);

   679                         JScrollPane p = (JScrollPane) SwingUtilities.getAncestorOfClass(JScrollPane.class, t);

   680                         r.y = Math.max(0, r.y - p.getHeight() * 2 / 5);

   681                         r.height += p.getHeight() * 4 / 5;

   682                         t.scrollRectToVisible(r);

   683                     } catch (BadLocationException ignore) {

   684                     }

   685                 }

   686             });

   687         }

   689         private JComboBox entries;

   690         private JTextField checkField;

   691         private InfoPanel enclPanel;

   692         private InfoPanel selfPanel;

   693         private JTextArea body;

   694         private JTextField statusText;

   696         private Color selfColor = new Color(0.f, 1.f, 0.f, 0.2f); // 20% green

   697         private Color enclColor = new Color(1.f, 0.f, 0.f, 0.2f); // 20% red

   699         /** Panel to display an Info object. */

   700         private class InfoPanel extends JPanel {

   701             InfoPanel() {

   702                 add(tagName = createTextField(20));

   703                 add(new JLabel("start:"));

   704                 add(addListener(start = createTextField(6)));

   705                 add(new JLabel("pos:"));

   706                 add(addListener(pos = createTextField(6)));

   707                 add(new JLabel("end:"));

   708                 add(addListener(end = createTextField(6)));

   709             }

   711             void setInfo(Info info) {

   712                 this.info = info;

   713                 tagName.setText(treeUtil.nameFromTag(info.tag));

   714                 start.setText(String.valueOf(info.start));

   715                 pos.setText(String.valueOf(info.pos));

   716                 end.setText(String.valueOf(info.end));

   717             }

   719             JTextField addListener(final JTextField f) {

   720                 f.addMouseListener(new MouseAdapter() {

   721                     @Override

   722                     public void mouseClicked(MouseEvent e) {

   723                         body.setCaretPosition(Integer.valueOf(f.getText()));

   724                         body.getCaret().setVisible(true);

   725                     }

   726                 });

   727                 return f;

   728             }

   730             Info info;

   731             JTextField tagName;

   732             JTextField start;

   733             JTextField pos;

   734             JTextField end;

   735         }

   737         /** Object to record information about an error to be displayed. */

   738         private class Entry {

   739             Entry(JavaFileObject file, String check, Info encl, Info self) {

   740                 this.file = file;

   741                 this.check = check;

   742                 this.encl = encl;

   743                 this.self= self;

   744             }

   746             @Override

   747             public String toString() {

   748                 return file.getName() + " " + check + " " + getMinPos(encl, self);

   749             }

   751             final JavaFileObject file;

   752             final String check;

   753             final Info encl;

   754             final Info self;

   755         }

   756     }

   757 }

Mercurial > jdk8-mips64-public > langtools / file revision

test/tools/javac/failover/CheckAttributedTree.java@7375d4979bd3

test/tools/javac/failover/CheckAttributedTree.java