aoqi@0: /* aoqi@0: * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. aoqi@0: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. aoqi@0: * aoqi@0: * This code is free software; you can redistribute it and/or modify it aoqi@0: * under the terms of the GNU General Public License version 2 only, as aoqi@0: * published by the Free Software Foundation. aoqi@0: * aoqi@0: * This code is distributed in the hope that it will be useful, but WITHOUT aoqi@0: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or aoqi@0: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License aoqi@0: * version 2 for more details (a copy is included in the LICENSE file that aoqi@0: * accompanied this code). aoqi@0: * aoqi@0: * You should have received a copy of the GNU General Public License version aoqi@0: * 2 along with this work; if not, write to the Free Software Foundation, aoqi@0: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. aoqi@0: * aoqi@0: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA aoqi@0: * or visit www.oracle.com if you need additional information or have any aoqi@0: * questions. aoqi@0: */ aoqi@0: aoqi@0: /* aoqi@0: * @test aoqi@0: * @bug 6970584 8006694 aoqi@0: * @summary assorted position errors in compiler syntax trees aoqi@0: * temporarily workaround combo tests are causing time out in several platforms aoqi@0: * @library ../lib aoqi@0: * @build JavacTestingAbstractThreadedTest aoqi@0: * @run main/othervm CheckAttributedTree -q -r -et ERRONEOUS . aoqi@0: */ aoqi@0: aoqi@0: // use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047) aoqi@0: // see JDK-8006746 aoqi@0: aoqi@0: import java.awt.BorderLayout; aoqi@0: import java.awt.Color; aoqi@0: import java.awt.Dimension; aoqi@0: import java.awt.EventQueue; aoqi@0: import java.awt.Font; aoqi@0: import java.awt.GridBagConstraints; aoqi@0: import java.awt.GridBagLayout; aoqi@0: import java.awt.Rectangle; aoqi@0: import java.awt.event.ActionEvent; aoqi@0: import java.awt.event.ActionListener; aoqi@0: import java.awt.event.MouseAdapter; aoqi@0: import java.awt.event.MouseEvent; aoqi@0: import java.io.File; aoqi@0: import java.io.IOException; aoqi@0: import java.io.PrintStream; aoqi@0: import java.io.PrintWriter; aoqi@0: import java.io.StringWriter; aoqi@0: import java.lang.reflect.Field; aoqi@0: import java.util.ArrayList; aoqi@0: import java.util.Arrays; aoqi@0: import java.util.concurrent.atomic.AtomicInteger; aoqi@0: import java.util.HashSet; aoqi@0: import java.util.List; aoqi@0: import java.util.Set; aoqi@0: aoqi@0: import javax.lang.model.element.Element; aoqi@0: import javax.swing.DefaultComboBoxModel; aoqi@0: import javax.swing.JComboBox; aoqi@0: import javax.swing.JComponent; aoqi@0: import javax.swing.JFrame; aoqi@0: import javax.swing.JLabel; aoqi@0: import javax.swing.JPanel; aoqi@0: import javax.swing.JScrollPane; aoqi@0: import javax.swing.JTextArea; aoqi@0: import javax.swing.JTextField; aoqi@0: import javax.swing.SwingUtilities; aoqi@0: import javax.swing.event.CaretEvent; aoqi@0: import javax.swing.event.CaretListener; aoqi@0: import javax.swing.text.BadLocationException; aoqi@0: import javax.swing.text.DefaultHighlighter; aoqi@0: import javax.swing.text.Highlighter; aoqi@0: import javax.tools.Diagnostic; aoqi@0: import javax.tools.DiagnosticListener; aoqi@0: import javax.tools.JavaFileObject; aoqi@0: aoqi@0: import com.sun.source.tree.CompilationUnitTree; aoqi@0: import com.sun.source.util.TaskEvent; aoqi@0: import com.sun.source.util.JavacTask; aoqi@0: import com.sun.source.util.TaskListener; aoqi@0: import com.sun.tools.javac.code.Symbol; aoqi@0: import com.sun.tools.javac.code.Type; aoqi@0: import com.sun.tools.javac.tree.EndPosTable; aoqi@0: import com.sun.tools.javac.tree.JCTree; aoqi@0: import com.sun.tools.javac.tree.JCTree.JCCompilationUnit; aoqi@0: import com.sun.tools.javac.tree.JCTree.JCImport; aoqi@0: import com.sun.tools.javac.tree.TreeInfo; aoqi@0: import com.sun.tools.javac.tree.TreeScanner; aoqi@0: import com.sun.tools.javac.util.Pair; aoqi@0: aoqi@0: import static com.sun.tools.javac.tree.JCTree.Tag.*; aoqi@0: aoqi@0: /** aoqi@0: * Utility and test program to check validity of tree positions for tree nodes. aoqi@0: * The program can be run standalone, or as a jtreg test. In standalone mode, aoqi@0: * errors can be displayed in a gui viewer. For info on command line args, aoqi@0: * run program with no args. aoqi@0: * aoqi@0: *

aoqi@0: * jtreg: Note that by using the -r switch in the test description below, this test aoqi@0: * will process all java files in the langtools/test directory, thus implicitly aoqi@0: * covering any new language features that may be tested in this test suite. aoqi@0: */ aoqi@0: aoqi@0: public class CheckAttributedTree extends JavacTestingAbstractThreadedTest { aoqi@0: /** aoqi@0: * Main entry point. aoqi@0: * If test.src is set, program runs in jtreg mode, and will throw an Error aoqi@0: * if any errors arise, otherwise System.exit will be used, unless the gui aoqi@0: * viewer is being used. In jtreg mode, the default base directory for file aoqi@0: * args is the value of ${test.src}. In jtreg mode, the -r option can be aoqi@0: * given to change the default base directory to the root test directory. aoqi@0: */ aoqi@0: public static void main(String... args) throws Exception { aoqi@0: String testSrc = System.getProperty("test.src"); aoqi@0: File baseDir = (testSrc == null) ? null : new File(testSrc); aoqi@0: throwAssertionOnError = false; aoqi@0: boolean ok = new CheckAttributedTree().run(baseDir, args); aoqi@0: if (!ok) { aoqi@0: if (testSrc != null) // jtreg mode aoqi@0: throw new Error("failed"); aoqi@0: else aoqi@0: System.exit(1); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Run the program. A base directory can be provided for file arguments. aoqi@0: * In jtreg mode, the -r option can be given to change the default base aoqi@0: * directory to the test root directory. For other options, see usage(). aoqi@0: * @param baseDir base directory for any file arguments. aoqi@0: * @param args command line args aoqi@0: * @return true if successful or in gui mode aoqi@0: */ aoqi@0: boolean run(File baseDir, String... args) throws Exception { aoqi@0: if (args.length == 0) { aoqi@0: usage(System.out); aoqi@0: return true; aoqi@0: } aoqi@0: aoqi@0: List files = new ArrayList(); aoqi@0: for (int i = 0; i < args.length; i++) { aoqi@0: String arg = args[i]; aoqi@0: if (arg.equals("-encoding") && i + 1 < args.length) aoqi@0: encoding = args[++i]; aoqi@0: else if (arg.equals("-gui")) aoqi@0: gui = true; aoqi@0: else if (arg.equals("-q")) aoqi@0: quiet = true; aoqi@0: else if (arg.equals("-v")) { aoqi@0: verbose = true; aoqi@0: printAll = true; aoqi@0: } aoqi@0: else if (arg.equals("-t") && i + 1 < args.length) aoqi@0: tags.add(args[++i]); aoqi@0: else if (arg.equals("-ef") && i + 1 < args.length) aoqi@0: excludeFiles.add(new File(baseDir, args[++i])); aoqi@0: else if (arg.equals("-et") && i + 1 < args.length) aoqi@0: excludeTags.add(args[++i]); aoqi@0: else if (arg.equals("-r")) { aoqi@0: if (excludeFiles.size() > 0) aoqi@0: throw new Error("-r must be used before -ef"); aoqi@0: File d = baseDir; aoqi@0: while (!new File(d, "TEST.ROOT").exists()) { aoqi@0: if (d == null) aoqi@0: throw new Error("cannot find TEST.ROOT"); aoqi@0: d = d.getParentFile(); aoqi@0: } aoqi@0: baseDir = d; aoqi@0: } aoqi@0: else if (arg.startsWith("-")) aoqi@0: throw new Error("unknown option: " + arg); aoqi@0: else { aoqi@0: while (i < args.length) aoqi@0: files.add(new File(baseDir, args[i++])); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: for (File file: files) { aoqi@0: if (file.exists()) aoqi@0: test(file); aoqi@0: else aoqi@0: error("File not found: " + file); aoqi@0: } aoqi@0: aoqi@0: if (fileCount.get() != 1) aoqi@0: errWriter.println(fileCount + " files read"); aoqi@0: checkAfterExec(false); aoqi@0: aoqi@0: return (gui || errCount.get() == 0); aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Print command line help. aoqi@0: * @param out output stream aoqi@0: */ aoqi@0: void usage(PrintStream out) { aoqi@0: out.println("Usage:"); aoqi@0: out.println(" java CheckAttributedTree options... files..."); aoqi@0: out.println(""); aoqi@0: out.println("where options include:"); aoqi@0: out.println("-q Quiet: don't report on inapplicable files"); aoqi@0: out.println("-gui Display returns in a GUI viewer"); aoqi@0: out.println("-v Verbose: report on files as they are being read"); aoqi@0: out.println("-t tag Limit checks to tree nodes with this tag"); aoqi@0: out.println(" Can be repeated if desired"); aoqi@0: out.println("-ef file Exclude file or directory"); aoqi@0: out.println("-et tag Exclude tree nodes with given tag name"); aoqi@0: out.println(""); aoqi@0: out.println("files may be directories or files"); aoqi@0: out.println("directories will be scanned recursively"); aoqi@0: out.println("non java files, or java files which cannot be parsed, will be ignored"); aoqi@0: out.println(""); aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Test a file. If the file is a directory, it will be recursively scanned aoqi@0: * for java files. aoqi@0: * @param file the file or directory to test aoqi@0: */ aoqi@0: void test(final File file) { aoqi@0: if (excludeFiles.contains(file)) { aoqi@0: if (!quiet) aoqi@0: error("File " + file + " excluded"); aoqi@0: return; aoqi@0: } aoqi@0: aoqi@0: if (file.isDirectory()) { aoqi@0: for (File f: file.listFiles()) { aoqi@0: test(f); aoqi@0: } aoqi@0: return; aoqi@0: } aoqi@0: aoqi@0: if (file.isFile() && file.getName().endsWith(".java")) { aoqi@0: pool.execute(new Runnable() { aoqi@0: @Override aoqi@0: public void run() { aoqi@0: try { aoqi@0: if (verbose) aoqi@0: errWriter.println(file); aoqi@0: fileCount.incrementAndGet(); aoqi@0: NPETester p = new NPETester(); aoqi@0: p.test(read(file)); aoqi@0: } catch (AttributionException e) { aoqi@0: if (!quiet) { aoqi@0: error("Error attributing " + file + "\n" + e.getMessage()); aoqi@0: } aoqi@0: } catch (IOException e) { aoqi@0: error("Error reading " + file + ": " + e); aoqi@0: } aoqi@0: } aoqi@0: }); aoqi@0: } aoqi@0: aoqi@0: if (!quiet) aoqi@0: error("File " + file + " ignored"); aoqi@0: } aoqi@0: aoqi@0: // See CR: 6982992 Tests CheckAttributedTree.java, JavacTreeScannerTest.java, and SourceTreeeScannerTest.java timeout aoqi@0: StringWriter sw = new StringWriter(); aoqi@0: PrintWriter pw = new PrintWriter(sw); aoqi@0: Reporter r = new Reporter(pw); aoqi@0: aoqi@0: /** aoqi@0: * Read a file. aoqi@0: * @param file the file to be read aoqi@0: * @return the tree for the content of the file aoqi@0: * @throws IOException if any IO errors occur aoqi@0: * @throws TreePosTest.ParseException if any errors occur while parsing the file aoqi@0: */ aoqi@0: List> read(File file) throws IOException, AttributionException { aoqi@0: r.errors = 0; aoqi@0: Iterable files = fm.get().getJavaFileObjects(file); aoqi@0: String[] opts = { "-XDshouldStopPolicy=ATTR", "-XDverboseCompilePolicy" }; aoqi@0: JavacTask task = (JavacTask)comp.getTask(pw, fm.get(), r, Arrays.asList(opts), null, files); aoqi@0: final List analyzedElems = new ArrayList<>(); aoqi@0: task.setTaskListener(new TaskListener() { aoqi@0: public void started(TaskEvent e) { aoqi@0: if (e.getKind() == TaskEvent.Kind.ANALYZE) aoqi@0: analyzedElems.add(e.getTypeElement()); aoqi@0: } aoqi@0: public void finished(TaskEvent e) { } aoqi@0: }); aoqi@0: aoqi@0: try { aoqi@0: Iterable trees = task.parse(); aoqi@0: task.analyze(); aoqi@0: List> res = new ArrayList<>(); aoqi@0: //System.out.println("Try to add pairs. Elems are " + analyzedElems); aoqi@0: for (CompilationUnitTree t : trees) { aoqi@0: JCCompilationUnit cu = (JCCompilationUnit)t; aoqi@0: for (JCTree def : cu.defs) { aoqi@0: if (def.hasTag(CLASSDEF) && aoqi@0: analyzedElems.contains(((JCTree.JCClassDecl)def).sym)) { aoqi@0: //System.out.println("Adding pair..."); aoqi@0: res.add(new Pair<>(cu, def)); aoqi@0: } aoqi@0: } aoqi@0: } aoqi@0: return res; aoqi@0: } aoqi@0: catch (Throwable t) { aoqi@0: throw new AttributionException("Exception while attributing file: " + file); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Report an error. When the program is complete, the program will either aoqi@0: * exit or throw an Error if any errors have been reported. aoqi@0: * @param msg the error message aoqi@0: */ aoqi@0: void error(String msg) { aoqi@0: System.err.println(msg); aoqi@0: errCount.incrementAndGet(); aoqi@0: } aoqi@0: aoqi@0: /** Flag: don't report irrelevant files. */ aoqi@0: boolean quiet; aoqi@0: /** Flag: show errors in GUI viewer. */ aoqi@0: boolean gui; aoqi@0: /** The GUI viewer for errors. */ aoqi@0: Viewer viewer; aoqi@0: /** Flag: report files as they are processed. */ aoqi@0: boolean verbose; aoqi@0: /** Option: encoding for test files. */ aoqi@0: String encoding; aoqi@0: /** The set of tags for tree nodes to be analyzed; if empty, all tree nodes aoqi@0: * are analyzed. */ aoqi@0: Set tags = new HashSet(); aoqi@0: /** Set of files and directories to be excluded from analysis. */ aoqi@0: Set excludeFiles = new HashSet(); aoqi@0: /** Set of tag names to be excluded from analysis. */ aoqi@0: Set excludeTags = new HashSet(); aoqi@0: /** Utility class for trees */ aoqi@0: TreeUtil treeUtil = new TreeUtil(); aoqi@0: aoqi@0: /** aoqi@0: * Main class for testing assertions concerning types/symbol aoqi@0: * left uninitialized after attribution aoqi@0: */ aoqi@0: private class NPETester extends TreeScanner { aoqi@0: void test(List> trees) { aoqi@0: for (Pair p : trees) { aoqi@0: sourcefile = p.fst.sourcefile; aoqi@0: endPosTable = p.fst.endPositions; aoqi@0: encl = new Info(p.snd, endPosTable); aoqi@0: p.snd.accept(this); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: @Override aoqi@0: public void scan(JCTree tree) { aoqi@0: if (tree == null || aoqi@0: excludeTags.contains(treeUtil.nameFromTag(tree.getTag()))) { aoqi@0: return; aoqi@0: } aoqi@0: aoqi@0: Info self = new Info(tree, endPosTable); aoqi@0: if (mandatoryType(tree)) { aoqi@0: check(tree.type != null, aoqi@0: "'null' field 'type' found in tree ", self); aoqi@0: if (tree.type==null) aoqi@0: new Throwable().printStackTrace(); aoqi@0: } aoqi@0: aoqi@0: Field errField = checkFields(tree); aoqi@0: if (errField!=null) { aoqi@0: check(false, aoqi@0: "'null' field '" + errField.getName() + "' found in tree ", self); aoqi@0: } aoqi@0: aoqi@0: Info prevEncl = encl; aoqi@0: encl = self; aoqi@0: tree.accept(this); aoqi@0: encl = prevEncl; aoqi@0: } aoqi@0: aoqi@0: private boolean mandatoryType(JCTree that) { aoqi@0: return that instanceof JCTree.JCExpression || aoqi@0: that.hasTag(VARDEF) || aoqi@0: that.hasTag(METHODDEF) || aoqi@0: that.hasTag(CLASSDEF); aoqi@0: } aoqi@0: aoqi@0: private final List excludedFields = Arrays.asList("varargsElement", "targetType"); aoqi@0: aoqi@0: void check(boolean ok, String label, Info self) { aoqi@0: if (!ok) { aoqi@0: if (gui) { aoqi@0: if (viewer == null) aoqi@0: viewer = new Viewer(); aoqi@0: viewer.addEntry(sourcefile, label, encl, self); aoqi@0: } aoqi@0: error(label + self.toString() + " encl: " + encl.toString() + aoqi@0: " in file: " + sourcefile + " " + self.tree); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: Field checkFields(JCTree t) { aoqi@0: List fieldsToCheck = treeUtil.getFieldsOfType(t, aoqi@0: excludedFields, aoqi@0: Symbol.class, aoqi@0: Type.class); aoqi@0: for (Field f : fieldsToCheck) { aoqi@0: try { aoqi@0: if (f.get(t) == null) { aoqi@0: return f; aoqi@0: } aoqi@0: } aoqi@0: catch (IllegalAccessException e) { aoqi@0: System.err.println("Cannot read field: " + f); aoqi@0: //swallow it aoqi@0: } aoqi@0: } aoqi@0: return null; aoqi@0: } aoqi@0: aoqi@0: @Override aoqi@0: public void visitImport(JCImport tree) { } aoqi@0: aoqi@0: @Override aoqi@0: public void visitTopLevel(JCCompilationUnit tree) { aoqi@0: scan(tree.defs); aoqi@0: } aoqi@0: aoqi@0: JavaFileObject sourcefile; aoqi@0: EndPosTable endPosTable; aoqi@0: Info encl; aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Utility class providing easy access to position and other info for a tree node. aoqi@0: */ aoqi@0: private class Info { aoqi@0: Info() { aoqi@0: tree = null; aoqi@0: tag = ERRONEOUS; aoqi@0: start = 0; aoqi@0: pos = 0; aoqi@0: end = Integer.MAX_VALUE; aoqi@0: } aoqi@0: aoqi@0: Info(JCTree tree, EndPosTable endPosTable) { aoqi@0: this.tree = tree; aoqi@0: tag = tree.getTag(); aoqi@0: start = TreeInfo.getStartPos(tree); aoqi@0: pos = tree.pos; aoqi@0: end = TreeInfo.getEndPos(tree, endPosTable); aoqi@0: } aoqi@0: aoqi@0: @Override aoqi@0: public String toString() { aoqi@0: return treeUtil.nameFromTag(tree.getTag()) + "[start:" + start + ",pos:" + pos + ",end:" + end + "]"; aoqi@0: } aoqi@0: aoqi@0: final JCTree tree; aoqi@0: final JCTree.Tag tag; aoqi@0: final int start; aoqi@0: final int pos; aoqi@0: final int end; aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Names for tree tags. aoqi@0: */ aoqi@0: private static class TreeUtil { aoqi@0: String nameFromTag(JCTree.Tag tag) { aoqi@0: String name = tag.name(); aoqi@0: return (name == null) ? "??" : name; aoqi@0: } aoqi@0: aoqi@0: List getFieldsOfType(JCTree t, List excludeNames, Class... types) { aoqi@0: List buf = new ArrayList(); aoqi@0: for (Field f : t.getClass().getDeclaredFields()) { aoqi@0: if (!excludeNames.contains(f.getName())) { aoqi@0: for (Class type : types) { aoqi@0: if (type.isAssignableFrom(f.getType())) { aoqi@0: f.setAccessible(true); aoqi@0: buf.add(f); aoqi@0: break; aoqi@0: } aoqi@0: } aoqi@0: } aoqi@0: } aoqi@0: return buf; aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Thrown when errors are found parsing a java file. aoqi@0: */ aoqi@0: private static class ParseException extends Exception { aoqi@0: ParseException(String msg) { aoqi@0: super(msg); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: private static class AttributionException extends Exception { aoqi@0: AttributionException(String msg) { aoqi@0: super(msg); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * DiagnosticListener to report diagnostics and count any errors that occur. aoqi@0: */ aoqi@0: private static class Reporter implements DiagnosticListener { aoqi@0: Reporter(PrintWriter out) { aoqi@0: this.out = out; aoqi@0: } aoqi@0: aoqi@0: public void report(Diagnostic diagnostic) { aoqi@0: //out.println(diagnostic); aoqi@0: switch (diagnostic.getKind()) { aoqi@0: case ERROR: aoqi@0: errors++; aoqi@0: } aoqi@0: } aoqi@0: int errors; aoqi@0: PrintWriter out; aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * GUI viewer for issues found by TreePosTester. The viewer provides a drop aoqi@0: * down list for selecting error conditions, a header area providing details aoqi@0: * about an error, and a text area with the ranges of text highlighted as aoqi@0: * appropriate. aoqi@0: */ aoqi@0: private class Viewer extends JFrame { aoqi@0: /** aoqi@0: * Create a viewer. aoqi@0: */ aoqi@0: Viewer() { aoqi@0: initGUI(); aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Add another entry to the list of errors. aoqi@0: * @param file The file containing the error aoqi@0: * @param check The condition that was being tested, and which failed aoqi@0: * @param encl the enclosing tree node aoqi@0: * @param self the tree node containing the error aoqi@0: */ aoqi@0: void addEntry(JavaFileObject file, String check, Info encl, Info self) { aoqi@0: Entry e = new Entry(file, check, encl, self); aoqi@0: DefaultComboBoxModel m = (DefaultComboBoxModel) entries.getModel(); aoqi@0: m.addElement(e); aoqi@0: if (m.getSize() == 1) aoqi@0: entries.setSelectedItem(e); aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Initialize the GUI window. aoqi@0: */ aoqi@0: private void initGUI() { aoqi@0: JPanel head = new JPanel(new GridBagLayout()); aoqi@0: GridBagConstraints lc = new GridBagConstraints(); aoqi@0: GridBagConstraints fc = new GridBagConstraints(); aoqi@0: fc.anchor = GridBagConstraints.WEST; aoqi@0: fc.fill = GridBagConstraints.HORIZONTAL; aoqi@0: fc.gridwidth = GridBagConstraints.REMAINDER; aoqi@0: aoqi@0: entries = new JComboBox(); aoqi@0: entries.addActionListener(new ActionListener() { aoqi@0: public void actionPerformed(ActionEvent e) { aoqi@0: showEntry((Entry) entries.getSelectedItem()); aoqi@0: } aoqi@0: }); aoqi@0: fc.insets.bottom = 10; aoqi@0: head.add(entries, fc); aoqi@0: fc.insets.bottom = 0; aoqi@0: head.add(new JLabel("check:"), lc); aoqi@0: head.add(checkField = createTextField(80), fc); aoqi@0: fc.fill = GridBagConstraints.NONE; aoqi@0: head.add(setBackground(new JLabel("encl:"), enclColor), lc); aoqi@0: head.add(enclPanel = new InfoPanel(), fc); aoqi@0: head.add(setBackground(new JLabel("self:"), selfColor), lc); aoqi@0: head.add(selfPanel = new InfoPanel(), fc); aoqi@0: add(head, BorderLayout.NORTH); aoqi@0: aoqi@0: body = new JTextArea(); aoqi@0: body.setFont(Font.decode(Font.MONOSPACED)); aoqi@0: body.addCaretListener(new CaretListener() { aoqi@0: public void caretUpdate(CaretEvent e) { aoqi@0: int dot = e.getDot(); aoqi@0: int mark = e.getMark(); aoqi@0: if (dot == mark) aoqi@0: statusText.setText("dot: " + dot); aoqi@0: else aoqi@0: statusText.setText("dot: " + dot + ", mark:" + mark); aoqi@0: } aoqi@0: }); aoqi@0: JScrollPane p = new JScrollPane(body, aoqi@0: JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, aoqi@0: JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); aoqi@0: p.setPreferredSize(new Dimension(640, 480)); aoqi@0: add(p, BorderLayout.CENTER); aoqi@0: aoqi@0: statusText = createTextField(80); aoqi@0: add(statusText, BorderLayout.SOUTH); aoqi@0: aoqi@0: pack(); aoqi@0: setLocationRelativeTo(null); // centered on screen aoqi@0: setVisible(true); aoqi@0: setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); aoqi@0: } aoqi@0: aoqi@0: /** Show an entry that has been selected. */ aoqi@0: private void showEntry(Entry e) { aoqi@0: try { aoqi@0: // update simple fields aoqi@0: setTitle(e.file.getName()); aoqi@0: checkField.setText(e.check); aoqi@0: enclPanel.setInfo(e.encl); aoqi@0: selfPanel.setInfo(e.self); aoqi@0: // show file text with highlights aoqi@0: body.setText(e.file.getCharContent(true).toString()); aoqi@0: Highlighter highlighter = body.getHighlighter(); aoqi@0: highlighter.removeAllHighlights(); aoqi@0: addHighlight(highlighter, e.encl, enclColor); aoqi@0: addHighlight(highlighter, e.self, selfColor); aoqi@0: scroll(body, getMinPos(enclPanel.info, selfPanel.info)); aoqi@0: } catch (IOException ex) { aoqi@0: body.setText("Cannot read " + e.file.getName() + ": " + e); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: /** Create a test field. */ aoqi@0: private JTextField createTextField(int width) { aoqi@0: JTextField f = new JTextField(width); aoqi@0: f.setEditable(false); aoqi@0: f.setBorder(null); aoqi@0: return f; aoqi@0: } aoqi@0: aoqi@0: /** Add a highlighted region based on the positions in an Info object. */ aoqi@0: private void addHighlight(Highlighter h, Info info, Color c) { aoqi@0: int start = info.start; aoqi@0: int end = info.end; aoqi@0: if (start == -1 && end == -1) aoqi@0: return; aoqi@0: if (start == -1) aoqi@0: start = end; aoqi@0: if (end == -1) aoqi@0: end = start; aoqi@0: try { aoqi@0: h.addHighlight(info.start, info.end, aoqi@0: new DefaultHighlighter.DefaultHighlightPainter(c)); aoqi@0: if (info.pos != -1) { aoqi@0: Color c2 = new Color(c.getRed(), c.getGreen(), c.getBlue(), (int)(.4f * 255)); // 40% aoqi@0: h.addHighlight(info.pos, info.pos + 1, aoqi@0: new DefaultHighlighter.DefaultHighlightPainter(c2)); aoqi@0: } aoqi@0: } catch (BadLocationException e) { aoqi@0: e.printStackTrace(); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: /** Get the minimum valid position in a set of info objects. */ aoqi@0: private int getMinPos(Info... values) { aoqi@0: int i = Integer.MAX_VALUE; aoqi@0: for (Info info: values) { aoqi@0: if (info.start >= 0) i = Math.min(i, info.start); aoqi@0: if (info.pos >= 0) i = Math.min(i, info.pos); aoqi@0: if (info.end >= 0) i = Math.min(i, info.end); aoqi@0: } aoqi@0: return (i == Integer.MAX_VALUE) ? 0 : i; aoqi@0: } aoqi@0: aoqi@0: /** Set the background on a component. */ aoqi@0: private JComponent setBackground(JComponent comp, Color c) { aoqi@0: comp.setOpaque(true); aoqi@0: comp.setBackground(c); aoqi@0: return comp; aoqi@0: } aoqi@0: aoqi@0: /** Scroll a text area to display a given position near the middle of the visible area. */ aoqi@0: private void scroll(final JTextArea t, final int pos) { aoqi@0: // Using invokeLater appears to give text a chance to sort itself out aoqi@0: // before the scroll happens; otherwise scrollRectToVisible doesn't work. aoqi@0: // Maybe there's a better way to sync with the text... aoqi@0: EventQueue.invokeLater(new Runnable() { aoqi@0: public void run() { aoqi@0: try { aoqi@0: Rectangle r = t.modelToView(pos); aoqi@0: JScrollPane p = (JScrollPane) SwingUtilities.getAncestorOfClass(JScrollPane.class, t); aoqi@0: r.y = Math.max(0, r.y - p.getHeight() * 2 / 5); aoqi@0: r.height += p.getHeight() * 4 / 5; aoqi@0: t.scrollRectToVisible(r); aoqi@0: } catch (BadLocationException ignore) { aoqi@0: } aoqi@0: } aoqi@0: }); aoqi@0: } aoqi@0: aoqi@0: private JComboBox entries; aoqi@0: private JTextField checkField; aoqi@0: private InfoPanel enclPanel; aoqi@0: private InfoPanel selfPanel; aoqi@0: private JTextArea body; aoqi@0: private JTextField statusText; aoqi@0: aoqi@0: private Color selfColor = new Color(0.f, 1.f, 0.f, 0.2f); // 20% green aoqi@0: private Color enclColor = new Color(1.f, 0.f, 0.f, 0.2f); // 20% red aoqi@0: aoqi@0: /** Panel to display an Info object. */ aoqi@0: private class InfoPanel extends JPanel { aoqi@0: InfoPanel() { aoqi@0: add(tagName = createTextField(20)); aoqi@0: add(new JLabel("start:")); aoqi@0: add(addListener(start = createTextField(6))); aoqi@0: add(new JLabel("pos:")); aoqi@0: add(addListener(pos = createTextField(6))); aoqi@0: add(new JLabel("end:")); aoqi@0: add(addListener(end = createTextField(6))); aoqi@0: } aoqi@0: aoqi@0: void setInfo(Info info) { aoqi@0: this.info = info; aoqi@0: tagName.setText(treeUtil.nameFromTag(info.tag)); aoqi@0: start.setText(String.valueOf(info.start)); aoqi@0: pos.setText(String.valueOf(info.pos)); aoqi@0: end.setText(String.valueOf(info.end)); aoqi@0: } aoqi@0: aoqi@0: JTextField addListener(final JTextField f) { aoqi@0: f.addMouseListener(new MouseAdapter() { aoqi@0: @Override aoqi@0: public void mouseClicked(MouseEvent e) { aoqi@0: body.setCaretPosition(Integer.valueOf(f.getText())); aoqi@0: body.getCaret().setVisible(true); aoqi@0: } aoqi@0: }); aoqi@0: return f; aoqi@0: } aoqi@0: aoqi@0: Info info; aoqi@0: JTextField tagName; aoqi@0: JTextField start; aoqi@0: JTextField pos; aoqi@0: JTextField end; aoqi@0: } aoqi@0: aoqi@0: /** Object to record information about an error to be displayed. */ aoqi@0: private class Entry { aoqi@0: Entry(JavaFileObject file, String check, Info encl, Info self) { aoqi@0: this.file = file; aoqi@0: this.check = check; aoqi@0: this.encl = encl; aoqi@0: this.self= self; aoqi@0: } aoqi@0: aoqi@0: @Override aoqi@0: public String toString() { aoqi@0: return file.getName() + " " + check + " " + getMinPos(encl, self); aoqi@0: } aoqi@0: aoqi@0: final JavaFileObject file; aoqi@0: final String check; aoqi@0: final Info encl; aoqi@0: final Info self; aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: /** Number of files that have been analyzed. */ aoqi@0: static AtomicInteger fileCount = new AtomicInteger(); aoqi@0: aoqi@0: }