CheckAttributedTree.java revision 1279:5c0b3faeb0b0
190792Sgshapiro/* 2261363Sgshapiro * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved. 390792Sgshapiro * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 490792Sgshapiro * 590792Sgshapiro * This code is free software; you can redistribute it and/or modify it 690792Sgshapiro * under the terms of the GNU General Public License version 2 only, as 790792Sgshapiro * published by the Free Software Foundation. 890792Sgshapiro * 9266692Sgshapiro * This code is distributed in the hope that it will be useful, but WITHOUT 1090792Sgshapiro * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1190792Sgshapiro * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1290792Sgshapiro * version 2 for more details (a copy is included in the LICENSE file that 1390792Sgshapiro * accompanied this code). 1490792Sgshapiro * 1590792Sgshapiro * You should have received a copy of the GNU General Public License version 1690792Sgshapiro * 2 along with this work; if not, write to the Free Software Foundation, 1790792Sgshapiro * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1890792Sgshapiro * 1990792Sgshapiro * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2090792Sgshapiro * or visit www.oracle.com if you need additional information or have any 2190792Sgshapiro * questions. 2290792Sgshapiro */ 2390792Sgshapiro 2490792Sgshapiroimport com.sun.source.util.TaskEvent; 2590792Sgshapiroimport java.awt.BorderLayout; 2690792Sgshapiroimport java.awt.Color; 2790792Sgshapiroimport java.awt.Dimension; 2890792Sgshapiroimport java.awt.EventQueue; 2990792Sgshapiroimport java.awt.Font; 3090792Sgshapiroimport java.awt.GridBagConstraints; 3190792Sgshapiroimport java.awt.GridBagLayout; 3290792Sgshapiroimport java.awt.Rectangle; 3390792Sgshapiroimport java.awt.event.ActionEvent; 3490792Sgshapiroimport java.awt.event.ActionListener; 35import java.awt.event.MouseAdapter; 36import java.awt.event.MouseEvent; 37import javax.swing.DefaultComboBoxModel; 38import javax.swing.JComboBox; 39import javax.swing.JComponent; 40import javax.swing.JFrame; 41import javax.swing.JLabel; 42import javax.swing.JPanel; 43import javax.swing.JScrollPane; 44import javax.swing.JTextArea; 45import javax.swing.JTextField; 46import javax.swing.SwingUtilities; 47import javax.swing.event.CaretEvent; 48import javax.swing.event.CaretListener; 49import javax.swing.text.BadLocationException; 50import javax.swing.text.DefaultHighlighter; 51import javax.swing.text.Highlighter; 52import java.io.File; 53import java.io.IOException; 54import java.io.PrintStream; 55import java.io.PrintWriter; 56import java.io.StringWriter; 57import java.lang.reflect.Field; 58import java.util.ArrayList; 59import java.util.List; 60import javax.tools.Diagnostic; 61import javax.tools.DiagnosticListener; 62import javax.tools.JavaFileObject; 63import javax.tools.StandardJavaFileManager; 64 65import com.sun.source.tree.CompilationUnitTree; 66import com.sun.source.util.JavacTask; 67import com.sun.source.util.TaskListener; 68import com.sun.tools.javac.api.JavacTool; 69import com.sun.tools.javac.code.Symbol; 70import com.sun.tools.javac.code.Type; 71import com.sun.tools.javac.tree.EndPosTable; 72import com.sun.tools.javac.tree.JCTree; 73import com.sun.tools.javac.tree.JCTree.JCCompilationUnit; 74import com.sun.tools.javac.tree.JCTree.JCImport; 75import com.sun.tools.javac.tree.TreeInfo; 76import com.sun.tools.javac.tree.TreeScanner; 77import com.sun.tools.javac.util.Pair; 78 79import java.util.Arrays; 80import java.util.HashSet; 81import java.util.Set; 82import javax.lang.model.element.Element; 83 84import static com.sun.tools.javac.tree.JCTree.Tag.*; 85 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 */ 97 98/* 99 * @test 100 * @bug 6970584 101 * @summary assorted position errors in compiler syntax trees 102 * @run main CheckAttributedTree -q -r -et ERRONEOUS . 103 */ 104public 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 } 124 125 /** 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 } 138 139 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 } 174 175 for (File file: files) { 176 if (file.exists()) 177 test(file); 178 else 179 error("File not found: " + file); 180 } 181 182 if (fileCount != 1) 183 System.err.println(fileCount + " files read"); 184 if (errors > 0) 185 System.err.println(errors + " errors"); 186 187 return (gui || errors == 0); 188 } 189 190 /** 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 } 212 213 /** 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 } 224 225 if (file.isDirectory()) { 226 for (File f: file.listFiles()) { 227 test(f); 228 } 229 return; 230 } 231 232 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 } 248 249 if (!quiet) 250 error("File " + file + " ignored"); 251 } 252 253 // 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); 259 260 /** 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 }); 281 282 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 } 303 304 /** 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 } 313 314 /** 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(); 337 338 /** 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 } 351 352 @Override 353 public void scan(JCTree tree) { 354 if (tree == null || 355 excludeTags.contains(treeUtil.nameFromTag(tree.getTag()))) { 356 return; 357 } 358 359 Info self = new Info(tree, endPosTable); 360 check(!mandatoryType(tree) || 361 (tree.type != null && 362 checkFields(tree)), 363 "'null' found in tree ", 364 self); 365 366 Info prevEncl = encl; 367 encl = self; 368 tree.accept(this); 369 encl = prevEncl; 370 } 371 372 private boolean mandatoryType(JCTree that) { 373 return that instanceof JCTree.JCExpression || 374 that.hasTag(VARDEF) || 375 that.hasTag(METHODDEF) || 376 that.hasTag(CLASSDEF); 377 } 378 379 private final List<String> excludedFields = Arrays.asList("varargsElement"); 380 381 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 } 391 392 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 } 410 411 @Override 412 public void visitImport(JCImport tree) { } 413 414 @Override 415 public void visitTopLevel(JCCompilationUnit tree) { 416 scan(tree.defs); 417 } 418 419 JavaFileObject sourcefile; 420 EndPosTable endPosTable; 421 Info encl; 422 } 423 424 /** 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 } 435 436 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 } 443 444 @Override 445 public String toString() { 446 return treeUtil.nameFromTag(tree.getTag()) + "[start:" + start + ",pos:" + pos + ",end:" + end + "]"; 447 } 448 449 final JCTree tree; 450 final JCTree.Tag tag; 451 final int start; 452 final int pos; 453 final int end; 454 } 455 456 /** 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 } 464 465 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 } 481 482 /** 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 } 490 491 private static class AttributionException extends Exception { 492 AttributionException(String msg) { 493 super(msg); 494 } 495 } 496 497 /** 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 } 504 505 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 } 515 516 /** 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 } 529 530 /** 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 } 544 545 /** 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; 555 556 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); 573 574 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); 591 592 statusText = createTextField(80); 593 add(statusText, BorderLayout.SOUTH); 594 595 pack(); 596 setLocationRelativeTo(null); // centered on screen 597 setVisible(true); 598 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 599 } 600 601 /** 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 } 620 621 /** 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 } 628 629 /** 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 } 651 652 /** 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 } 662 663 /** 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 } 669 670 /** 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 } 688 689 private JComboBox entries; 690 private JTextField checkField; 691 private InfoPanel enclPanel; 692 private InfoPanel selfPanel; 693 private JTextArea body; 694 private JTextField statusText; 695 696 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 698 699 /** 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 } 710 711 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 } 718 719 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 } 729 730 Info info; 731 JTextField tagName; 732 JTextField start; 733 JTextField pos; 734 JTextField end; 735 } 736 737 /** 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 } 745 746 @Override 747 public String toString() { 748 return file.getName() + " " + check + " " + getMinPos(encl, self); 749 } 750 751 final JavaFileObject file; 752 final String check; 753 final Info encl; 754 final Info self; 755 } 756 } 757} 758