test/tools/javac/tree/TreePosTest.java

Mon, 14 Nov 2011 15:11:10 -0800

author
ksrini
date
Mon, 14 Nov 2011 15:11:10 -0800
changeset 1138
7375d4979bd3
parent 1127
ca49d50318dc
child 1280
5c0b3faeb0b0
permissions
-rw-r--r--

7106166: (javac) re-factor EndPos parser
Reviewed-by: jjg

jjg@482 1 /*
jjg@1127 2 * Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
jjg@482 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@482 4 *
jjg@482 5 * This code is free software; you can redistribute it and/or modify it
jjg@482 6 * under the terms of the GNU General Public License version 2 only, as
jjg@482 7 * published by the Free Software Foundation.
jjg@482 8 *
jjg@482 9 * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@482 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@482 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
jjg@482 12 * version 2 for more details (a copy is included in the LICENSE file that
jjg@482 13 * accompanied this code).
jjg@482 14 *
jjg@482 15 * You should have received a copy of the GNU General Public License version
jjg@482 16 * 2 along with this work; if not, write to the Free Software Foundation,
jjg@482 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@482 18 *
ohair@554 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 20 * or visit www.oracle.com if you need additional information or have any
ohair@554 21 * questions.
jjg@482 22 */
jjg@482 23
jjg@482 24 import java.awt.BorderLayout;
jjg@482 25 import java.awt.Color;
jjg@482 26 import java.awt.Dimension;
jjg@482 27 import java.awt.EventQueue;
jjg@482 28 import java.awt.Font;
jjg@482 29 import java.awt.GridBagConstraints;
jjg@482 30 import java.awt.GridBagLayout;
jjg@482 31 import java.awt.Rectangle;
jjg@482 32 import java.awt.event.ActionEvent;
jjg@482 33 import java.awt.event.ActionListener;
jjg@482 34 import java.awt.event.MouseAdapter;
jjg@482 35 import java.awt.event.MouseEvent;
jjg@482 36 import java.io.File;
jjg@482 37 import java.io.IOException;
jjg@482 38 import java.io.PrintStream;
jjg@482 39 import java.io.PrintWriter;
jjg@482 40 import java.io.StringWriter;
jjg@482 41 import java.lang.reflect.Field;
jjg@482 42 import java.lang.reflect.Modifier;
jjg@482 43 import java.nio.charset.Charset;
jjg@482 44 import java.util.ArrayList;
jjg@482 45 import java.util.Collections;
jjg@482 46 import java.util.HashMap;
jjg@482 47 import java.util.HashSet;
jjg@482 48 import java.util.Iterator;
jjg@482 49 import java.util.List;
jjg@482 50 import java.util.Map;
jjg@482 51 import java.util.Set;
jjg@482 52 import javax.swing.DefaultComboBoxModel;
jjg@482 53 import javax.swing.JComboBox;
jjg@482 54 import javax.swing.JComponent;
jjg@482 55 import javax.swing.JFrame;
jjg@482 56 import javax.swing.JLabel;
jjg@482 57 import javax.swing.JPanel;
jjg@482 58 import javax.swing.JScrollPane;
jjg@482 59 import javax.swing.JTextArea;
jjg@482 60 import javax.swing.JTextField;
jjg@482 61 import javax.swing.SwingUtilities;
jjg@482 62 import javax.swing.event.CaretEvent;
jjg@482 63 import javax.swing.event.CaretListener;
jjg@482 64 import javax.swing.text.BadLocationException;
jjg@482 65 import javax.swing.text.DefaultHighlighter;
jjg@482 66 import javax.swing.text.Highlighter;
jjg@482 67 import javax.tools.Diagnostic;
jjg@482 68 import javax.tools.DiagnosticListener;
jjg@482 69 import javax.tools.JavaFileObject;
jjg@482 70 import javax.tools.StandardJavaFileManager;
jjg@482 71
jjg@482 72 import com.sun.source.tree.CompilationUnitTree;
jjg@482 73 import com.sun.source.util.JavacTask;
jjg@482 74 import com.sun.tools.javac.api.JavacTool;
jjg@482 75 import com.sun.tools.javac.code.Flags;
ksrini@1138 76 import com.sun.tools.javac.parser.EndPosTable;
jjg@482 77 import com.sun.tools.javac.tree.JCTree;
jjg@482 78 import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
jjg@482 79 import com.sun.tools.javac.tree.JCTree.JCNewClass;
jjg@482 80 import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
jjg@482 81 import com.sun.tools.javac.tree.TreeInfo;
jjg@482 82 import com.sun.tools.javac.tree.TreeScanner;
jjg@482 83
jjg@1127 84 import static com.sun.tools.javac.tree.JCTree.Tag.*;
jjg@482 85 import static com.sun.tools.javac.util.Position.NOPOS;
jjg@482 86
jjg@482 87 /**
jjg@482 88 * Utility and test program to check validity of tree positions for tree nodes.
jjg@482 89 * The program can be run standalone, or as a jtreg test. In standalone mode,
jjg@482 90 * errors can be displayed in a gui viewer. For info on command line args,
jjg@482 91 * run program with no args.
jjg@482 92 *
jjg@482 93 * <p>
jjg@482 94 * jtreg: Note that by using the -r switch in the test description below, this test
jjg@482 95 * will process all java files in the langtools/test directory, thus implicitly
jjg@482 96 * covering any new language features that may be tested in this test suite.
jjg@482 97 */
jjg@482 98
jjg@482 99 /*
jjg@482 100 * @test
jjg@482 101 * @bug 6919889
jjg@482 102 * @summary assorted position errors in compiler syntax trees
jjg@493 103 * @run main TreePosTest -q -r -ef ./tools/javac/typeAnnotations -ef ./tools/javap/typeAnnotations -et ANNOTATED_TYPE .
jjg@482 104 */
jjg@482 105 public class TreePosTest {
jjg@482 106 /**
jjg@482 107 * Main entry point.
jjg@482 108 * If test.src is set, program runs in jtreg mode, and will throw an Error
jjg@482 109 * if any errors arise, otherwise System.exit will be used, unless the gui
jjg@482 110 * viewer is being used. In jtreg mode, the default base directory for file
jjg@482 111 * args is the value of ${test.src}. In jtreg mode, the -r option can be
jjg@482 112 * given to change the default base directory to the root test directory.
jjg@482 113 */
jjg@482 114 public static void main(String... args) {
jjg@482 115 String testSrc = System.getProperty("test.src");
jjg@482 116 File baseDir = (testSrc == null) ? null : new File(testSrc);
jjg@482 117 boolean ok = new TreePosTest().run(baseDir, args);
jjg@482 118 if (!ok) {
jjg@482 119 if (testSrc != null) // jtreg mode
jjg@482 120 throw new Error("failed");
jjg@482 121 else
jjg@482 122 System.exit(1);
jjg@482 123 }
jjg@482 124 }
jjg@482 125
jjg@482 126 /**
jjg@482 127 * Run the program. A base directory can be provided for file arguments.
jjg@482 128 * In jtreg mode, the -r option can be given to change the default base
jjg@482 129 * directory to the test root directory. For other options, see usage().
jjg@482 130 * @param baseDir base directory for any file arguments.
jjg@482 131 * @param args command line args
jjg@482 132 * @return true if successful or in gui mode
jjg@482 133 */
jjg@482 134 boolean run(File baseDir, String... args) {
jjg@482 135 if (args.length == 0) {
jjg@482 136 usage(System.out);
jjg@482 137 return true;
jjg@482 138 }
jjg@482 139
jjg@482 140 List<File> files = new ArrayList<File>();
jjg@482 141 for (int i = 0; i < args.length; i++) {
jjg@482 142 String arg = args[i];
jjg@482 143 if (arg.equals("-encoding") && i + 1 < args.length)
jjg@482 144 encoding = args[++i];
jjg@482 145 else if (arg.equals("-gui"))
jjg@482 146 gui = true;
jjg@482 147 else if (arg.equals("-q"))
jjg@482 148 quiet = true;
jjg@482 149 else if (arg.equals("-v"))
jjg@482 150 verbose = true;
jjg@482 151 else if (arg.equals("-t") && i + 1 < args.length)
jjg@482 152 tags.add(args[++i]);
jjg@482 153 else if (arg.equals("-ef") && i + 1 < args.length)
jjg@482 154 excludeFiles.add(new File(baseDir, args[++i]));
jjg@493 155 else if (arg.equals("-et") && i + 1 < args.length)
jjg@493 156 excludeTags.add(args[++i]);
jjg@482 157 else if (arg.equals("-r")) {
jjg@482 158 if (excludeFiles.size() > 0)
jjg@482 159 throw new Error("-r must be used before -ef");
jjg@482 160 File d = baseDir;
jjg@482 161 while (!new File(d, "TEST.ROOT").exists()) {
jjg@482 162 d = d.getParentFile();
jjg@482 163 if (d == null)
jjg@482 164 throw new Error("cannot find TEST.ROOT");
jjg@482 165 }
jjg@482 166 baseDir = d;
jjg@482 167 }
jjg@482 168 else if (arg.startsWith("-"))
jjg@482 169 throw new Error("unknown option: " + arg);
jjg@482 170 else {
jjg@482 171 while (i < args.length)
jjg@482 172 files.add(new File(baseDir, args[i++]));
jjg@482 173 }
jjg@482 174 }
jjg@482 175
jjg@482 176 for (File file: files) {
jjg@482 177 if (file.exists())
jjg@482 178 test(file);
jjg@482 179 else
jjg@482 180 error("File not found: " + file);
jjg@482 181 }
jjg@482 182
jjg@482 183 if (fileCount != 1)
jjg@482 184 System.err.println(fileCount + " files read");
jjg@482 185 if (errors > 0)
jjg@482 186 System.err.println(errors + " errors");
jjg@482 187
jjg@482 188 return (gui || errors == 0);
jjg@482 189 }
jjg@482 190
jjg@482 191 /**
jjg@482 192 * Print command line help.
jjg@482 193 * @param out output stream
jjg@482 194 */
jjg@482 195 void usage(PrintStream out) {
jjg@482 196 out.println("Usage:");
jjg@482 197 out.println(" java TreePosTest options... files...");
jjg@482 198 out.println("");
jjg@482 199 out.println("where options include:");
jjg@482 200 out.println("-gui Display returns in a GUI viewer");
jjg@482 201 out.println("-q Quiet: don't report on inapplicable files");
jjg@482 202 out.println("-v Verbose: report on files as they are being read");
jjg@482 203 out.println("-t tag Limit checks to tree nodes with this tag");
jjg@482 204 out.println(" Can be repeated if desired");
jjg@482 205 out.println("-ef file Exclude file or directory");
jjg@493 206 out.println("-et tag Exclude tree nodes with given tag name");
jjg@482 207 out.println("");
jjg@482 208 out.println("files may be directories or files");
jjg@482 209 out.println("directories will be scanned recursively");
jjg@482 210 out.println("non java files, or java files which cannot be parsed, will be ignored");
jjg@482 211 out.println("");
jjg@482 212 }
jjg@482 213
jjg@482 214 /**
jjg@482 215 * Test a file. If the file is a directory, it will be recursively scanned
jjg@482 216 * for java files.
jjg@482 217 * @param file the file or directory to test
jjg@482 218 */
jjg@482 219 void test(File file) {
jjg@482 220 if (excludeFiles.contains(file)) {
jjg@482 221 if (!quiet)
jjg@482 222 error("File " + file + " excluded");
jjg@482 223 return;
jjg@482 224 }
jjg@482 225
jjg@482 226 if (file.isDirectory()) {
jjg@482 227 for (File f: file.listFiles()) {
jjg@482 228 test(f);
jjg@482 229 }
jjg@482 230 return;
jjg@482 231 }
jjg@482 232
jjg@482 233 if (file.isFile() && file.getName().endsWith(".java")) {
jjg@482 234 try {
jjg@482 235 if (verbose)
jjg@482 236 System.err.println(file);
jjg@482 237 fileCount++;
jjg@482 238 PosTester p = new PosTester();
jjg@482 239 p.test(read(file));
jjg@482 240 } catch (ParseException e) {
jjg@482 241 if (!quiet) {
jjg@482 242 error("Error parsing " + file + "\n" + e.getMessage());
jjg@482 243 }
jjg@482 244 } catch (IOException e) {
jjg@482 245 error("Error reading " + file + ": " + e);
jjg@482 246 }
jjg@482 247 return;
jjg@482 248 }
jjg@482 249
jjg@482 250 if (!quiet)
jjg@482 251 error("File " + file + " ignored");
jjg@482 252 }
jjg@482 253
jjh@808 254 // See CR: 6982992 Tests CheckAttributedTree.java, JavacTreeScannerTest.java, and SourceTreeeScannerTest.java timeout
jjh@808 255 StringWriter sw = new StringWriter();
jjh@808 256 PrintWriter pw = new PrintWriter(sw);
jjh@808 257 Reporter r = new Reporter(pw);
jjh@808 258 JavacTool tool = JavacTool.create();
jjh@808 259 StandardJavaFileManager fm = tool.getStandardFileManager(r, null, null);
jjh@808 260
jjg@482 261 /**
jjg@482 262 * Read a file.
jjg@482 263 * @param file the file to be read
jjg@482 264 * @return the tree for the content of the file
jjg@482 265 * @throws IOException if any IO errors occur
jjg@482 266 * @throws TreePosTest.ParseException if any errors occur while parsing the file
jjg@482 267 */
jjg@482 268 JCCompilationUnit read(File file) throws IOException, ParseException {
jjg@482 269 JavacTool tool = JavacTool.create();
jjh@808 270 r.errors = 0;
jjg@482 271 Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(file);
jjg@482 272 JavacTask task = tool.getTask(pw, fm, r, Collections.<String>emptyList(), null, files);
jjg@482 273 Iterable<? extends CompilationUnitTree> trees = task.parse();
jjg@482 274 pw.flush();
jjg@482 275 if (r.errors > 0)
jjg@482 276 throw new ParseException(sw.toString());
jjg@482 277 Iterator<? extends CompilationUnitTree> iter = trees.iterator();
jjg@482 278 if (!iter.hasNext())
jjg@482 279 throw new Error("no trees found");
jjg@482 280 JCCompilationUnit t = (JCCompilationUnit) iter.next();
jjg@482 281 if (iter.hasNext())
jjg@482 282 throw new Error("too many trees found");
jjg@482 283 return t;
jjg@482 284 }
jjg@482 285
jjg@482 286 /**
jjg@482 287 * Report an error. When the program is complete, the program will either
jjg@482 288 * exit or throw an Error if any errors have been reported.
jjg@482 289 * @param msg the error message
jjg@482 290 */
jjg@482 291 void error(String msg) {
jjg@482 292 System.err.println(msg);
jjg@482 293 errors++;
jjg@482 294 }
jjg@482 295
jjg@1127 296 /**
jjg@1127 297 * Names for tree tags.
jjg@1127 298 */
jjg@1127 299 private static String getTagName(JCTree.Tag tag) {
jjg@1127 300 String name = tag.name();
jjg@1127 301 return (name == null) ? "??" : name;
jjg@1127 302 }
jjg@1127 303
jjg@482 304 /** Number of files that have been analyzed. */
jjg@482 305 int fileCount;
jjg@482 306 /** Number of errors reported. */
jjg@482 307 int errors;
jjg@482 308 /** Flag: don't report irrelevant files. */
jjg@482 309 boolean quiet;
jjg@482 310 /** Flag: report files as they are processed. */
jjg@482 311 boolean verbose;
jjg@482 312 /** Flag: show errors in GUI viewer. */
jjg@482 313 boolean gui;
jjg@482 314 /** Option: encoding for test files. */
jjg@482 315 String encoding;
jjg@482 316 /** The GUI viewer for errors. */
jjg@482 317 Viewer viewer;
jjg@482 318 /** The set of tags for tree nodes to be analyzed; if empty, all tree nodes
jjg@482 319 * are analyzed. */
jjg@482 320 Set<String> tags = new HashSet<String>();
jjg@482 321 /** Set of files and directories to be excluded from analysis. */
jjg@482 322 Set<File> excludeFiles = new HashSet<File>();
jjg@493 323 /** Set of tag names to be excluded from analysis. */
jjg@493 324 Set<String> excludeTags = new HashSet<String>();
jjg@482 325
jjg@482 326 /**
jjg@482 327 * Main class for testing assertions concerning tree positions for tree nodes.
jjg@482 328 */
jjg@482 329 private class PosTester extends TreeScanner {
jjg@482 330 void test(JCCompilationUnit tree) {
jjg@482 331 sourcefile = tree.sourcefile;
jjg@482 332 endPosTable = tree.endPositions;
jjg@482 333 encl = new Info();
jjg@482 334 tree.accept(this);
jjg@482 335 }
jjg@482 336
jjg@482 337 @Override
jjg@482 338 public void scan(JCTree tree) {
jjg@482 339 if (tree == null)
jjg@482 340 return;
jjg@482 341
jjg@482 342 Info self = new Info(tree, endPosTable);
jjg@493 343 if (check(encl, self)) {
jjg@482 344 // Modifiers nodes are present throughout the tree even where
jjg@482 345 // there is no corresponding source text.
jjg@482 346 // Redundant semicolons in a class definition can cause empty
jjg@482 347 // initializer blocks with no positions.
jjg@1127 348 if ((self.tag == MODIFIERS || self.tag == BLOCK)
jjg@482 349 && self.pos == NOPOS) {
jjg@482 350 // If pos is NOPOS, so should be the start and end positions
jjg@482 351 check("start == NOPOS", encl, self, self.start == NOPOS);
jjg@482 352 check("end == NOPOS", encl, self, self.end == NOPOS);
jjg@482 353 } else {
jjg@482 354 // For this node, start , pos, and endpos should be all defined
jjg@482 355 check("start != NOPOS", encl, self, self.start != NOPOS);
jjg@482 356 check("pos != NOPOS", encl, self, self.pos != NOPOS);
jjg@482 357 check("end != NOPOS", encl, self, self.end != NOPOS);
jjg@482 358 // The following should normally be ordered
jjg@482 359 // encl.start <= start <= pos <= end <= encl.end
jjg@482 360 // In addition, the position of the enclosing node should be
jjg@482 361 // within this node.
jjg@482 362 // The primary exceptions are for array type nodes, because of the
jjg@482 363 // need to support legacy syntax:
jjg@482 364 // e.g. int a[]; int[] b[]; int f()[] { return null; }
jjg@482 365 // and because of inconsistent nesting of left and right of
jjg@482 366 // array declarations:
jjg@482 367 // e.g. int[][] a = new int[2][];
jjg@482 368 check("encl.start <= start", encl, self, encl.start <= self.start);
jjg@482 369 check("start <= pos", encl, self, self.start <= self.pos);
jjg@1127 370 if (!(self.tag == TYPEARRAY
jjg@1127 371 && (encl.tag == VARDEF ||
jjg@1127 372 encl.tag == METHODDEF ||
jjg@1127 373 encl.tag == TYPEARRAY))) {
jjg@482 374 check("encl.pos <= start || end <= encl.pos",
jjg@482 375 encl, self, encl.pos <= self.start || self.end <= encl.pos);
jjg@482 376 }
jjg@482 377 check("pos <= end", encl, self, self.pos <= self.end);
jjg@1127 378 if (!(self.tag == TYPEARRAY && encl.tag == TYPEARRAY)) {
jjg@482 379 check("end <= encl.end", encl, self, self.end <= encl.end);
jjg@482 380 }
jjg@482 381 }
jjg@482 382 }
jjg@482 383
jjg@482 384 Info prevEncl = encl;
jjg@482 385 encl = self;
jjg@482 386 tree.accept(this);
jjg@482 387 encl = prevEncl;
jjg@482 388 }
jjg@482 389
jjg@482 390 @Override
jjg@482 391 public void visitVarDef(JCVariableDecl tree) {
jjg@482 392 // enum member declarations are desugared in the parser and have
jjg@482 393 // ill-defined semantics for tree positions, so for now, we
jjg@482 394 // skip the synthesized bits and just check parts which came from
jjg@482 395 // the original source text
jjg@482 396 if ((tree.mods.flags & Flags.ENUM) != 0) {
jjg@482 397 scan(tree.mods);
jjg@482 398 if (tree.init != null) {
jjg@1127 399 if (tree.init.hasTag(NEWCLASS)) {
jjg@482 400 JCNewClass init = (JCNewClass) tree.init;
jjg@482 401 if (init.args != null && init.args.nonEmpty()) {
jjg@482 402 scan(init.args);
jjg@482 403 }
jjg@482 404 if (init.def != null && init.def.defs != null) {
jjg@482 405 scan(init.def.defs);
jjg@482 406 }
jjg@482 407 }
jjg@482 408 }
jjg@482 409 } else
jjg@482 410 super.visitVarDef(tree);
jjg@482 411 }
jjg@482 412
jjg@493 413 boolean check(Info encl, Info self) {
jjg@493 414 if (excludeTags.size() > 0) {
jjg@1127 415 if (encl != null && excludeTags.contains(getTagName(encl.tag))
jjg@1127 416 || excludeTags.contains(getTagName(self.tag)))
jjg@493 417 return false;
jjg@493 418 }
jjg@1127 419 return tags.size() == 0 || tags.contains(getTagName(self.tag));
jjg@482 420 }
jjg@482 421
jjg@482 422 void check(String label, Info encl, Info self, boolean ok) {
jjg@482 423 if (!ok) {
jjg@482 424 if (gui) {
jjg@482 425 if (viewer == null)
jjg@482 426 viewer = new Viewer();
jjg@482 427 viewer.addEntry(sourcefile, label, encl, self);
jjg@482 428 }
jjg@482 429
jjg@482 430 String s = self.tree.toString();
jjg@482 431 String msg = sourcefile.getName() + ": " + label + ": " +
jjg@482 432 "encl:" + encl + " this:" + self + "\n" +
jjg@482 433 s.substring(0, Math.min(80, s.length())).replaceAll("[\r\n]+", " ");
jjg@482 434 error(msg);
jjg@482 435 }
jjg@482 436 }
jjg@482 437
jjg@482 438 JavaFileObject sourcefile;
ksrini@1138 439 EndPosTable endPosTable;
jjg@482 440 Info encl;
jjg@482 441
jjg@482 442 }
jjg@482 443
jjg@482 444 /**
jjg@482 445 * Utility class providing easy access to position and other info for a tree node.
jjg@482 446 */
jjg@482 447 private class Info {
jjg@482 448 Info() {
jjg@482 449 tree = null;
jjg@1127 450 tag = ERRONEOUS;
jjg@482 451 start = 0;
jjg@482 452 pos = 0;
jjg@482 453 end = Integer.MAX_VALUE;
jjg@482 454 }
jjg@482 455
ksrini@1138 456 Info(JCTree tree, EndPosTable endPosTable) {
jjg@482 457 this.tree = tree;
jjg@482 458 tag = tree.getTag();
jjg@482 459 start = TreeInfo.getStartPos(tree);
jjg@482 460 pos = tree.pos;
jjg@482 461 end = TreeInfo.getEndPos(tree, endPosTable);
jjg@482 462 }
jjg@482 463
jjg@482 464 @Override
jjg@482 465 public String toString() {
jjg@1127 466 return getTagName(tree.getTag()) + "[start:" + start + ",pos:" + pos + ",end:" + end + "]";
jjg@482 467 }
jjg@482 468
jjg@482 469 final JCTree tree;
jjg@1127 470 final JCTree.Tag tag;
jjg@482 471 final int start;
jjg@482 472 final int pos;
jjg@482 473 final int end;
jjg@482 474 }
jjg@482 475
jjg@482 476 /**
jjg@482 477 * Thrown when errors are found parsing a java file.
jjg@482 478 */
jjg@482 479 private static class ParseException extends Exception {
jjg@482 480 ParseException(String msg) {
jjg@482 481 super(msg);
jjg@482 482 }
jjg@482 483 }
jjg@482 484
jjg@482 485 /**
jjg@482 486 * DiagnosticListener to report diagnostics and count any errors that occur.
jjg@482 487 */
jjg@482 488 private static class Reporter implements DiagnosticListener<JavaFileObject> {
jjg@482 489 Reporter(PrintWriter out) {
jjg@482 490 this.out = out;
jjg@482 491 }
jjg@482 492
jjg@482 493 public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
jjg@482 494 out.println(diagnostic);
jjg@482 495 switch (diagnostic.getKind()) {
jjg@482 496 case ERROR:
jjg@482 497 errors++;
jjg@482 498 }
jjg@482 499 }
jjg@482 500 int errors;
jjg@482 501 PrintWriter out;
jjg@482 502 }
jjg@482 503
jjg@482 504 /**
jjg@482 505 * GUI viewer for issues found by TreePosTester. The viewer provides a drop
jjg@482 506 * down list for selecting error conditions, a header area providing details
jjg@482 507 * about an error, and a text area with the ranges of text highlighted as
jjg@482 508 * appropriate.
jjg@482 509 */
jjg@482 510 private class Viewer extends JFrame {
jjg@482 511 /**
jjg@482 512 * Create a viewer.
jjg@482 513 */
jjg@482 514 Viewer() {
jjg@482 515 initGUI();
jjg@482 516 }
jjg@482 517
jjg@482 518 /**
jjg@482 519 * Add another entry to the list of errors.
jjg@482 520 * @param file The file containing the error
jjg@482 521 * @param check The condition that was being tested, and which failed
jjg@482 522 * @param encl the enclosing tree node
jjg@482 523 * @param self the tree node containing the error
jjg@482 524 */
jjg@482 525 void addEntry(JavaFileObject file, String check, Info encl, Info self) {
jjg@482 526 Entry e = new Entry(file, check, encl, self);
jjg@482 527 DefaultComboBoxModel m = (DefaultComboBoxModel) entries.getModel();
jjg@482 528 m.addElement(e);
jjg@482 529 if (m.getSize() == 1)
jjg@482 530 entries.setSelectedItem(e);
jjg@482 531 }
jjg@482 532
jjg@482 533 /**
jjg@482 534 * Initialize the GUI window.
jjg@482 535 */
jjg@482 536 private void initGUI() {
jjg@482 537 JPanel head = new JPanel(new GridBagLayout());
jjg@482 538 GridBagConstraints lc = new GridBagConstraints();
jjg@482 539 GridBagConstraints fc = new GridBagConstraints();
jjg@482 540 fc.anchor = GridBagConstraints.WEST;
jjg@482 541 fc.fill = GridBagConstraints.HORIZONTAL;
jjg@482 542 fc.gridwidth = GridBagConstraints.REMAINDER;
jjg@482 543
jjg@482 544 entries = new JComboBox();
jjg@482 545 entries.addActionListener(new ActionListener() {
jjg@482 546 public void actionPerformed(ActionEvent e) {
jjg@482 547 showEntry((Entry) entries.getSelectedItem());
jjg@482 548 }
jjg@482 549 });
jjg@482 550 fc.insets.bottom = 10;
jjg@482 551 head.add(entries, fc);
jjg@482 552 fc.insets.bottom = 0;
jjg@482 553 head.add(new JLabel("check:"), lc);
jjg@482 554 head.add(checkField = createTextField(80), fc);
jjg@482 555 fc.fill = GridBagConstraints.NONE;
jjg@482 556 head.add(setBackground(new JLabel("encl:"), enclColor), lc);
jjg@482 557 head.add(enclPanel = new InfoPanel(), fc);
jjg@482 558 head.add(setBackground(new JLabel("self:"), selfColor), lc);
jjg@482 559 head.add(selfPanel = new InfoPanel(), fc);
jjg@482 560 add(head, BorderLayout.NORTH);
jjg@482 561
jjg@482 562 body = new JTextArea();
jjg@482 563 body.setFont(Font.decode(Font.MONOSPACED));
jjg@482 564 body.addCaretListener(new CaretListener() {
jjg@482 565 public void caretUpdate(CaretEvent e) {
jjg@482 566 int dot = e.getDot();
jjg@482 567 int mark = e.getMark();
jjg@482 568 if (dot == mark)
jjg@482 569 statusText.setText("dot: " + dot);
jjg@482 570 else
jjg@482 571 statusText.setText("dot: " + dot + ", mark:" + mark);
jjg@482 572 }
jjg@482 573 });
jjg@482 574 JScrollPane p = new JScrollPane(body,
jjg@482 575 JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
jjg@482 576 JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
jjg@482 577 p.setPreferredSize(new Dimension(640, 480));
jjg@482 578 add(p, BorderLayout.CENTER);
jjg@482 579
jjg@482 580 statusText = createTextField(80);
jjg@482 581 add(statusText, BorderLayout.SOUTH);
jjg@482 582
jjg@482 583 pack();
jjg@482 584 setLocationRelativeTo(null); // centered on screen
jjg@482 585 setVisible(true);
jjg@482 586 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jjg@482 587 }
jjg@482 588
jjg@482 589 /** Show an entry that has been selected. */
jjg@482 590 private void showEntry(Entry e) {
jjg@482 591 try {
jjg@482 592 // update simple fields
jjg@482 593 setTitle(e.file.getName());
jjg@482 594 checkField.setText(e.check);
jjg@482 595 enclPanel.setInfo(e.encl);
jjg@482 596 selfPanel.setInfo(e.self);
jjg@482 597 // show file text with highlights
jjg@482 598 body.setText(e.file.getCharContent(true).toString());
jjg@482 599 Highlighter highlighter = body.getHighlighter();
jjg@482 600 highlighter.removeAllHighlights();
jjg@482 601 addHighlight(highlighter, e.encl, enclColor);
jjg@482 602 addHighlight(highlighter, e.self, selfColor);
jjg@482 603 scroll(body, getMinPos(enclPanel.info, selfPanel.info));
jjg@482 604 } catch (IOException ex) {
jjg@482 605 body.setText("Cannot read " + e.file.getName() + ": " + e);
jjg@482 606 }
jjg@482 607 }
jjg@482 608
jjg@482 609 /** Create a test field. */
jjg@482 610 private JTextField createTextField(int width) {
jjg@482 611 JTextField f = new JTextField(width);
jjg@482 612 f.setEditable(false);
jjg@482 613 f.setBorder(null);
jjg@482 614 return f;
jjg@482 615 }
jjg@482 616
jjg@482 617 /** Add a highlighted region based on the positions in an Info object. */
jjg@482 618 private void addHighlight(Highlighter h, Info info, Color c) {
jjg@482 619 int start = info.start;
jjg@482 620 int end = info.end;
jjg@482 621 if (start == -1 && end == -1)
jjg@482 622 return;
jjg@482 623 if (start == -1)
jjg@482 624 start = end;
jjg@482 625 if (end == -1)
jjg@482 626 end = start;
jjg@482 627 try {
jjg@482 628 h.addHighlight(info.start, info.end,
jjg@482 629 new DefaultHighlighter.DefaultHighlightPainter(c));
jjg@482 630 if (info.pos != -1) {
jjg@482 631 Color c2 = new Color(c.getRed(), c.getGreen(), c.getBlue(), (int)(.4f * 255)); // 40%
jjg@482 632 h.addHighlight(info.pos, info.pos + 1,
jjg@482 633 new DefaultHighlighter.DefaultHighlightPainter(c2));
jjg@482 634 }
jjg@482 635 } catch (BadLocationException e) {
jjg@482 636 e.printStackTrace();
jjg@482 637 }
jjg@482 638 }
jjg@482 639
jjg@482 640 /** Get the minimum valid position in a set of info objects. */
jjg@482 641 private int getMinPos(Info... values) {
jjg@482 642 int i = Integer.MAX_VALUE;
jjg@482 643 for (Info info: values) {
jjg@482 644 if (info.start >= 0) i = Math.min(i, info.start);
jjg@482 645 if (info.pos >= 0) i = Math.min(i, info.pos);
jjg@482 646 if (info.end >= 0) i = Math.min(i, info.end);
jjg@482 647 }
jjg@482 648 return (i == Integer.MAX_VALUE) ? 0 : i;
jjg@482 649 }
jjg@482 650
jjg@482 651 /** Set the background on a component. */
jjg@482 652 private JComponent setBackground(JComponent comp, Color c) {
jjg@482 653 comp.setOpaque(true);
jjg@482 654 comp.setBackground(c);
jjg@482 655 return comp;
jjg@482 656 }
jjg@482 657
jjg@482 658 /** Scroll a text area to display a given position near the middle of the visible area. */
jjg@482 659 private void scroll(final JTextArea t, final int pos) {
jjg@482 660 // Using invokeLater appears to give text a chance to sort itself out
jjg@482 661 // before the scroll happens; otherwise scrollRectToVisible doesn't work.
jjg@482 662 // Maybe there's a better way to sync with the text...
jjg@482 663 EventQueue.invokeLater(new Runnable() {
jjg@482 664 public void run() {
jjg@482 665 try {
jjg@482 666 Rectangle r = t.modelToView(pos);
jjg@482 667 JScrollPane p = (JScrollPane) SwingUtilities.getAncestorOfClass(JScrollPane.class, t);
jjg@482 668 r.y = Math.max(0, r.y - p.getHeight() * 2 / 5);
jjg@482 669 r.height += p.getHeight() * 4 / 5;
jjg@482 670 t.scrollRectToVisible(r);
jjg@482 671 } catch (BadLocationException ignore) {
jjg@482 672 }
jjg@482 673 }
jjg@482 674 });
jjg@482 675 }
jjg@482 676
jjg@482 677 private JComboBox entries;
jjg@482 678 private JTextField checkField;
jjg@482 679 private InfoPanel enclPanel;
jjg@482 680 private InfoPanel selfPanel;
jjg@482 681 private JTextArea body;
jjg@482 682 private JTextField statusText;
jjg@482 683
jjg@482 684 private Color selfColor = new Color(0.f, 1.f, 0.f, 0.2f); // 20% green
jjg@482 685 private Color enclColor = new Color(1.f, 0.f, 0.f, 0.2f); // 20% red
jjg@482 686
jjg@482 687 /** Panel to display an Info object. */
jjg@482 688 private class InfoPanel extends JPanel {
jjg@482 689 InfoPanel() {
jjg@482 690 add(tagName = createTextField(20));
jjg@482 691 add(new JLabel("start:"));
jjg@482 692 add(addListener(start = createTextField(6)));
jjg@482 693 add(new JLabel("pos:"));
jjg@482 694 add(addListener(pos = createTextField(6)));
jjg@482 695 add(new JLabel("end:"));
jjg@482 696 add(addListener(end = createTextField(6)));
jjg@482 697 }
jjg@482 698
jjg@482 699 void setInfo(Info info) {
jjg@482 700 this.info = info;
jjg@1127 701 tagName.setText(getTagName(info.tag));
jjg@482 702 start.setText(String.valueOf(info.start));
jjg@482 703 pos.setText(String.valueOf(info.pos));
jjg@482 704 end.setText(String.valueOf(info.end));
jjg@482 705 }
jjg@482 706
jjg@482 707 JTextField addListener(final JTextField f) {
jjg@482 708 f.addMouseListener(new MouseAdapter() {
jjg@482 709 @Override
jjg@482 710 public void mouseClicked(MouseEvent e) {
jjg@482 711 body.setCaretPosition(Integer.valueOf(f.getText()));
jjg@482 712 body.getCaret().setVisible(true);
jjg@482 713 }
jjg@482 714 });
jjg@482 715 return f;
jjg@482 716 }
jjg@482 717
jjg@482 718 Info info;
jjg@482 719 JTextField tagName;
jjg@482 720 JTextField start;
jjg@482 721 JTextField pos;
jjg@482 722 JTextField end;
jjg@482 723 }
jjg@482 724
jjg@482 725 /** Object to record information about an error to be displayed. */
jjg@482 726 private class Entry {
jjg@482 727 Entry(JavaFileObject file, String check, Info encl, Info self) {
jjg@482 728 this.file = file;
jjg@482 729 this.check = check;
jjg@482 730 this.encl = encl;
jjg@482 731 this.self= self;
jjg@482 732 }
jjg@482 733
jjg@482 734 @Override
jjg@482 735 public String toString() {
jjg@482 736 return file.getName() + " " + check + " " + getMinPos(encl, self);
jjg@482 737 }
jjg@482 738
jjg@482 739 final JavaFileObject file;
jjg@482 740 final String check;
jjg@482 741 final Info encl;
jjg@482 742 final Info self;
jjg@482 743 }
jjg@482 744 }
jjg@482 745 }
jjg@482 746

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