jdk8-mips64-public/langtools: test/tools/javac/failover/CheckAttributedTree.java@ae361e7f435a

7108669: cleanup Log methods for direct printing to streams
Reviewed-by: mcimadamore

     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.lang.reflect.Modifier;

    59 import java.nio.charset.Charset;

    60 import java.util.ArrayList;

    61 import java.util.HashMap;

    62 import java.util.List;

    63 import java.util.Map;

    64 import javax.tools.Diagnostic;

    65 import javax.tools.DiagnosticListener;

    66 import javax.tools.JavaFileObject;

    67 import javax.tools.StandardJavaFileManager;

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

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

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

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

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

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

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

    76 import com.sun.tools.javac.tree.JCTree.JCClassDecl;

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

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

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

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

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

    83 import java.util.Arrays;

    84 import java.util.HashSet;

    85 import java.util.Set;

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

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

    90 /**

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

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

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

    94  * run program with no args.

    95  *

    96  * <p>

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

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

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

   100  */

   102 /*

   103  * @test

   104  * @bug 6970584

   105  * @summary assorted position errors in compiler syntax trees

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

   107  */

   108 public class CheckAttributedTree {

   109     /**

   110      * Main entry point.

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

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

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

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

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

   116      */

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

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

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

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

   121         if (!ok) {

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

   123                 throw new Error("failed");

   124             else

   125                 System.exit(1);

   126         }

   127     }

   129     /**

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

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

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

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

   134      * @param args command line args

   135      * @return true if successful or in gui mode

   136      */

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

   138         if (args.length == 0) {

   139             usage(System.out);

   140             return true;

   141         }

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

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

   145             String arg = args[i];

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

   147                 encoding = args[++i];

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

   149                 gui = true;

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

   151                 quiet = true;

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

   153                 verbose = true;

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

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

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

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

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

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

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

   161                 if (excludeFiles.size() > 0)

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

   163                 File d = baseDir;

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

   165                     if (d == null)

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

   167                     d = d.getParentFile();

   168                 }

   169                 baseDir = d;

   170             }

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

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

   173             else {

   174                 while (i < args.length)

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

   176             }

   177         }

   179         for (File file: files) {

   180             if (file.exists())

   181                 test(file);

   182             else

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

   184         }

   186         if (fileCount != 1)

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

   188         if (errors > 0)

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

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

   192     }

   194     /**

   195      * Print command line help.

   196      * @param out output stream

   197      */

   198     void usage(PrintStream out) {

   199         out.println("Usage:");

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

   201         out.println("");

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

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

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

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

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

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

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

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

   210         out.println("");

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

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

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

   214         out.println("");

   215     }

   217     /**

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

   219      * for java files.

   220      * @param file the file or directory to test

   221      */

   222     void test(File file) {

   223         if (excludeFiles.contains(file)) {

   224             if (!quiet)

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

   226             return;

   227         }

   229         if (file.isDirectory()) {

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

   231                 test(f);

   232             }

   233             return;

   234         }

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

   237             try {

   238                 if (verbose)

   239                     System.err.println(file);

   240                 fileCount++;

   241                 NPETester p = new NPETester();

   242                 p.test(read(file));

   243             } catch (AttributionException e) {

   244                 if (!quiet) {

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

   246                 }

   247             } catch (IOException e) {

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

   249             }

   250             return;

   251         }

   253         if (!quiet)

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

   255     }

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

   258     StringWriter sw = new StringWriter();

   259     PrintWriter pw = new PrintWriter(sw);

   260     Reporter r = new Reporter(pw);

   261     JavacTool tool = JavacTool.create();

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

   264     /**

   265      * Read a file.

   266      * @param file the file to be read

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

   268      * @throws IOException if any IO errors occur

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

   270      */

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

   272         JavacTool tool = JavacTool.create();

   273         r.errors = 0;

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

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

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

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

   278         task.setTaskListener(new TaskListener() {

   279             public void started(TaskEvent e) {

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

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

   282             }

   283             public void finished(TaskEvent e) { }

   284         });

   286         try {

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

   288             task.analyze();

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

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

   291             for (CompilationUnitTree t : trees) {

   292                JCCompilationUnit cu = (JCCompilationUnit)t;

   293                for (JCTree def : cu.defs) {

   294                    if (def.hasTag(CLASSDEF) &&

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

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

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

   298                    }

   299                }

   300             }

   301             return res;

   302         }

   303         catch (Throwable t) {

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

   305         }

   306     }

   308     /**

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

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

   311      * @param msg the error message

   312      */

   313     void error(String msg) {

   314         System.err.println(msg);

   315         errors++;

   316     }

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

   319     int fileCount;

   320     /** Number of errors reported. */

   321     int errors;

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

   323     boolean quiet;

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

   325     boolean gui;

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

   327     Viewer viewer;

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

   329     boolean verbose;

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

   331     String encoding;

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

   333      * are analyzed. */

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

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

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

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

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

   339     /** Utility class for trees */

   340     TreeUtil treeUtil = new TreeUtil();

   342     /**

   343      * Main class for testing assertions concerning types/symbol

   344      * left uninitialized after attribution

   345      */

   346     private class NPETester extends TreeScanner {

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

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

   349                 sourcefile = p.fst.sourcefile;

   350                 endPosTable = p.fst.endPositions;

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

   352                 p.snd.accept(this);

   353             }

   354         }

   356         @Override

   357         public void scan(JCTree tree) {

   358             if (tree == null ||

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

   360                 return;

   361             }

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

   364             check(!mandatoryType(tree) ||

   365                     (tree.type != null &&

   366                     checkFields(tree)),

   367                     "'null' found in tree ",

   368                     self);

   370             Info prevEncl = encl;

   371             encl = self;

   372             tree.accept(this);

   373             encl = prevEncl;

   374         }

   376         private boolean mandatoryType(JCTree that) {

   377             return that instanceof JCTree.JCExpression ||

   378                     that.hasTag(VARDEF) ||

   379                     that.hasTag(METHODDEF) ||

   380                     that.hasTag(CLASSDEF);

   381         }

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

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

   386             if (!ok) {

   387                 if (gui) {

   388                     if (viewer == null)

   389                         viewer = new Viewer();

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

   391                 }

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

   393             }

   394         }

   396         boolean checkFields(JCTree t) {

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

   398                     excludedFields,

   399                     Symbol.class,

   400                     Type.class);

   401             for (Field f : fieldsToCheck) {

   402                 try {

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

   404                         return false;

   405                     }

   406                 }

   407                 catch (IllegalAccessException e) {

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

   409                     //swallow it

   410                 }

   411             }

   412             return true;

   413         }

   415         @Override

   416         public void visitImport(JCImport tree) { }

   418         @Override

   419         public void visitTopLevel(JCCompilationUnit tree) {

   420             scan(tree.defs);

   421         }

   423         JavaFileObject sourcefile;

   424         Map<JCTree, Integer> endPosTable;

   425         Info encl;

   426     }

   428     /**

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

   430      */

   431     private class Info {

   432         Info() {

   433             tree = null;

   434             tag = ERRONEOUS;

   435             start = 0;

   436             pos = 0;

   437             end = Integer.MAX_VALUE;

   438         }

   440         Info(JCTree tree, Map<JCTree, Integer> endPosTable) {

   441             this.tree = tree;

   442             tag = tree.getTag();

   443             start = TreeInfo.getStartPos(tree);

   444             pos = tree.pos;

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

   446         }

   448         @Override

   449         public String toString() {

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

   451         }

   453         final JCTree tree;

   454         final JCTree.Tag tag;

   455         final int start;

   456         final int pos;

   457         final int end;

   458     }

   460     /**

   461      * Names for tree tags.

   462      */

   463     private static class TreeUtil {

   464         String nameFromTag(JCTree.Tag tag) {

   465             String name = tag.name();

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

   467         }

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

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

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

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

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

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

   475                             f.setAccessible(true);

   476                             buf.add(f);

   477                             break;

   478                         }

   479                     }

   480                 }

   481             }

   482             return buf;

   483         }

   484     }

   486     /**

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

   488      */

   489     private static class ParseException extends Exception {

   490         ParseException(String msg) {

   491             super(msg);

   492         }

   493     }

   495     private static class AttributionException extends Exception {

   496         AttributionException(String msg) {

   497             super(msg);

   498         }

   499     }

   501     /**

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

   503      */

   504     private static class Reporter implements DiagnosticListener<JavaFileObject> {

   505         Reporter(PrintWriter out) {

   506             this.out = out;

   507         }

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

   510             out.println(diagnostic);

   511             switch (diagnostic.getKind()) {

   512                 case ERROR:

   513                     errors++;

   514             }

   515         }

   516         int errors;

   517         PrintWriter out;

   518     }

   520     /**

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

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

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

   524      * appropriate.

   525      */

   526     private class Viewer extends JFrame {

   527         /**

   528          * Create a viewer.

   529          */

   530         Viewer() {

   531             initGUI();

   532         }

   534         /**

   535          * Add another entry to the list of errors.

   536          * @param file The file containing the error

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

   538          * @param encl the enclosing tree node

   539          * @param self the tree node containing the error

   540          */

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

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

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

   544             m.addElement(e);

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

   546                 entries.setSelectedItem(e);

   547         }

   549         /**

   550          * Initialize the GUI window.

   551          */

   552         private void initGUI() {

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

   554             GridBagConstraints lc = new GridBagConstraints();

   555             GridBagConstraints fc = new GridBagConstraints();

   556             fc.anchor = GridBagConstraints.WEST;

   557             fc.fill = GridBagConstraints.HORIZONTAL;

   558             fc.gridwidth = GridBagConstraints.REMAINDER;

   560             entries = new JComboBox();

   561             entries.addActionListener(new ActionListener() {

   562                 public void actionPerformed(ActionEvent e) {

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

   564                 }

   565             });

   566             fc.insets.bottom = 10;

   567             head.add(entries, fc);

   568             fc.insets.bottom = 0;

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

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

   571             fc.fill = GridBagConstraints.NONE;

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

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

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

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

   576             add(head, BorderLayout.NORTH);

   578             body = new JTextArea();

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

   580             body.addCaretListener(new CaretListener() {

   581                 public void caretUpdate(CaretEvent e) {

   582                     int dot = e.getDot();

   583                     int mark = e.getMark();

   584                     if (dot == mark)

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

   586                     else

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

   588                 }

   589             });

   590             JScrollPane p = new JScrollPane(body,

   591                     JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,

   592                     JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

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

   594             add(p, BorderLayout.CENTER);

   596             statusText = createTextField(80);

   597             add(statusText, BorderLayout.SOUTH);

   599             pack();

   600             setLocationRelativeTo(null); // centered on screen

   601             setVisible(true);

   602             setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

   603         }

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

   606         private void showEntry(Entry e) {

   607             try {

   608                 // update simple fields

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

   610                 checkField.setText(e.check);

   611                 enclPanel.setInfo(e.encl);

   612                 selfPanel.setInfo(e.self);

   613                 // show file text with highlights

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

   615                 Highlighter highlighter = body.getHighlighter();

   616                 highlighter.removeAllHighlights();

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

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

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

   620             } catch (IOException ex) {

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

   622             }

   623         }

   625         /** Create a test field. */

   626         private JTextField createTextField(int width) {

   627             JTextField f = new JTextField(width);

   628             f.setEditable(false);

   629             f.setBorder(null);

   630             return f;

   631         }

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

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

   635             int start = info.start;

   636             int end = info.end;

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

   638                 return;

   639             if (start == -1)

   640                 start = end;

   641             if (end == -1)

   642                 end = start;

   643             try {

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

   645                         new DefaultHighlighter.DefaultHighlightPainter(c));

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

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

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

   649                         new DefaultHighlighter.DefaultHighlightPainter(c2));

   650                 }

   651             } catch (BadLocationException e) {

   652                 e.printStackTrace();

   653             }

   654         }

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

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

   658             int i = Integer.MAX_VALUE;

   659             for (Info info: values) {

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

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

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

   663             }

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

   665         }

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

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

   669             comp.setOpaque(true);

   670             comp.setBackground(c);

   671             return comp;

   672         }

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

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

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

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

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

   679             EventQueue.invokeLater(new Runnable() {

   680                 public void run() {

   681                     try {

   682                         Rectangle r = t.modelToView(pos);

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

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

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

   686                         t.scrollRectToVisible(r);

   687                     } catch (BadLocationException ignore) {

   688                     }

   689                 }

   690             });

   691         }

   693         private JComboBox entries;

   694         private JTextField checkField;

   695         private InfoPanel enclPanel;

   696         private InfoPanel selfPanel;

   697         private JTextArea body;

   698         private JTextField statusText;

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

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

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

   704         private class InfoPanel extends JPanel {

   705             InfoPanel() {

   706                 add(tagName = createTextField(20));

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

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

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

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

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

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

   713             }

   715             void setInfo(Info info) {

   716                 this.info = info;

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

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

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

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

   721             }

   723             JTextField addListener(final JTextField f) {

   724                 f.addMouseListener(new MouseAdapter() {

   725                     @Override

   726                     public void mouseClicked(MouseEvent e) {

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

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

   729                     }

   730                 });

   731                 return f;

   732             }

   734             Info info;

   735             JTextField tagName;

   736             JTextField start;

   737             JTextField pos;

   738             JTextField end;

   739         }

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

   742         private class Entry {

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

   744                 this.file = file;

   745                 this.check = check;

   746                 this.encl = encl;

   747                 this.self= self;

   748             }

   750             @Override

   751             public String toString() {

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

   753             }

   755             final JavaFileObject file;

   756             final String check;

   757             final Info encl;

   758             final Info self;

   759         }

   760     }

   761 }

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

test/tools/javac/failover/CheckAttributedTree.java@ae361e7f435a

test/tools/javac/failover/CheckAttributedTree.java