| /* |
| * Copyright (c) 2010, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.awt.BorderLayout; |
| import java.awt.Color; |
| import java.awt.Dimension; |
| import java.awt.EventQueue; |
| import java.awt.Font; |
| import java.awt.GridBagConstraints; |
| import java.awt.GridBagLayout; |
| import java.awt.Rectangle; |
| import java.awt.event.ActionEvent; |
| import java.awt.event.ActionListener; |
| import java.awt.event.MouseAdapter; |
| import java.awt.event.MouseEvent; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| import java.nio.charset.Charset; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import javax.swing.DefaultComboBoxModel; |
| import javax.swing.JComboBox; |
| import javax.swing.JComponent; |
| import javax.swing.JFrame; |
| import javax.swing.JLabel; |
| import javax.swing.JPanel; |
| import javax.swing.JScrollPane; |
| import javax.swing.JTextArea; |
| import javax.swing.JTextField; |
| import javax.swing.SwingUtilities; |
| import javax.swing.event.CaretEvent; |
| import javax.swing.event.CaretListener; |
| import javax.swing.text.BadLocationException; |
| import javax.swing.text.DefaultHighlighter; |
| import javax.swing.text.Highlighter; |
| import javax.tools.Diagnostic; |
| import javax.tools.DiagnosticListener; |
| import javax.tools.JavaFileObject; |
| import javax.tools.StandardJavaFileManager; |
| |
| import com.sun.source.tree.CompilationUnitTree; |
| import com.sun.source.util.JavacTask; |
| import com.sun.tools.javac.api.JavacTool; |
| import com.sun.tools.javac.code.Flags; |
| import com.sun.tools.javac.tree.EndPosTable; |
| import com.sun.tools.javac.tree.JCTree; |
| import com.sun.tools.javac.tree.JCTree.JCAnnotatedType; |
| import com.sun.tools.javac.tree.JCTree.JCCompilationUnit; |
| import com.sun.tools.javac.tree.JCTree.JCNewClass; |
| import com.sun.tools.javac.tree.JCTree.JCVariableDecl; |
| import com.sun.tools.javac.tree.TreeInfo; |
| import com.sun.tools.javac.tree.TreeScanner; |
| |
| import static com.sun.tools.javac.tree.JCTree.Tag.*; |
| import static com.sun.tools.javac.util.Position.NOPOS; |
| |
| /** |
| * Utility and test program to check validity of tree positions for tree nodes. |
| * The program can be run standalone, or as a jtreg test. In standalone mode, |
| * errors can be displayed in a gui viewer. For info on command line args, |
| * run program with no args. |
| * |
| * <p> |
| * jtreg: Note that by using the -r switch in the test description below, this test |
| * will process all java files in the langtools/test directory, thus implicitly |
| * covering any new language features that may be tested in this test suite. |
| */ |
| |
| /* |
| * @test |
| * @bug 6919889 |
| * @summary assorted position errors in compiler syntax trees |
| * OLD: -q -r -ef ./tools/javac/typeAnnotations -ef ./tools/javap/typeAnnotations -et ANNOTATED_TYPE . |
| * @modules java.desktop |
| * jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.code |
| * jdk.compiler/com.sun.tools.javac.file |
| * jdk.compiler/com.sun.tools.javac.tree |
| * jdk.compiler/com.sun.tools.javac.util |
| * @run main TreePosTest -q -r . |
| */ |
| public class TreePosTest { |
| /** |
| * Main entry point. |
| * If test.src is set, program runs in jtreg mode, and will throw an Error |
| * if any errors arise, otherwise System.exit will be used, unless the gui |
| * viewer is being used. In jtreg mode, the default base directory for file |
| * args is the value of ${test.src}. In jtreg mode, the -r option can be |
| * given to change the default base directory to the root test directory. |
| */ |
| public static void main(String... args) throws IOException { |
| String testSrc = System.getProperty("test.src"); |
| File baseDir = (testSrc == null) ? null : new File(testSrc); |
| boolean ok = new TreePosTest().run(baseDir, args); |
| if (!ok) { |
| if (testSrc != null) // jtreg mode |
| throw new Error("failed"); |
| else |
| System.exit(1); |
| } |
| } |
| |
| /** |
| * Run the program. A base directory can be provided for file arguments. |
| * In jtreg mode, the -r option can be given to change the default base |
| * directory to the test root directory. For other options, see usage(). |
| * @param baseDir base directory for any file arguments. |
| * @param args command line args |
| * @return true if successful or in gui mode |
| */ |
| boolean run(File baseDir, String... args) throws IOException { |
| try { |
| if (args.length == 0) { |
| usage(System.out); |
| return true; |
| } |
| |
| List<File> files = new ArrayList<File>(); |
| for (int i = 0; i < args.length; i++) { |
| String arg = args[i]; |
| if (arg.equals("-encoding") && i + 1 < args.length) |
| encoding = args[++i]; |
| else if (arg.equals("-gui")) |
| gui = true; |
| else if (arg.equals("-q")) |
| quiet = true; |
| else if (arg.equals("-v")) |
| verbose = true; |
| else if (arg.equals("-t") && i + 1 < args.length) |
| tags.add(args[++i]); |
| else if (arg.equals("-ef") && i + 1 < args.length) |
| excludeFiles.add(new File(baseDir, args[++i])); |
| else if (arg.equals("-et") && i + 1 < args.length) |
| excludeTags.add(args[++i]); |
| else if (arg.equals("-r")) { |
| if (excludeFiles.size() > 0) |
| throw new Error("-r must be used before -ef"); |
| File d = baseDir; |
| while (!new File(d, "TEST.ROOT").exists()) { |
| d = d.getParentFile(); |
| if (d == null) |
| throw new Error("cannot find TEST.ROOT"); |
| } |
| baseDir = d; |
| } |
| else if (arg.startsWith("-")) |
| throw new Error("unknown option: " + arg); |
| else { |
| while (i < args.length) |
| files.add(new File(baseDir, args[i++])); |
| } |
| } |
| |
| for (File file: files) { |
| if (file.exists()) |
| test(file); |
| else |
| error("File not found: " + file); |
| } |
| |
| if (fileCount != 1) |
| System.err.println(fileCount + " files read"); |
| if (errors > 0) |
| System.err.println(errors + " errors"); |
| |
| return (gui || errors == 0); |
| } finally { |
| fm.close(); |
| } |
| } |
| |
| /** |
| * Print command line help. |
| * @param out output stream |
| */ |
| void usage(PrintStream out) { |
| out.println("Usage:"); |
| out.println(" java TreePosTest options... files..."); |
| out.println(""); |
| out.println("where options include:"); |
| out.println("-gui Display returns in a GUI viewer"); |
| out.println("-q Quiet: don't report on inapplicable files"); |
| out.println("-v Verbose: report on files as they are being read"); |
| out.println("-t tag Limit checks to tree nodes with this tag"); |
| out.println(" Can be repeated if desired"); |
| out.println("-ef file Exclude file or directory"); |
| out.println("-et tag Exclude tree nodes with given tag name"); |
| out.println(""); |
| out.println("files may be directories or files"); |
| out.println("directories will be scanned recursively"); |
| out.println("non java files, or java files which cannot be parsed, will be ignored"); |
| out.println(""); |
| } |
| |
| /** |
| * Test a file. If the file is a directory, it will be recursively scanned |
| * for java files. |
| * @param file the file or directory to test |
| */ |
| void test(File file) { |
| if (excludeFiles.contains(file)) { |
| if (!quiet) |
| error("File " + file + " excluded"); |
| return; |
| } |
| |
| if (file.isDirectory()) { |
| for (File f: file.listFiles()) { |
| test(f); |
| } |
| return; |
| } |
| |
| if (file.isFile() && file.getName().endsWith(".java")) { |
| try { |
| if (verbose) |
| System.err.println(file); |
| fileCount++; |
| PosTester p = new PosTester(); |
| p.test(read(file)); |
| } catch (ParseException e) { |
| if (!quiet) { |
| error("Error parsing " + file + "\n" + e.getMessage()); |
| } |
| } catch (IOException e) { |
| error("Error reading " + file + ": " + e); |
| } |
| return; |
| } |
| |
| if (!quiet) |
| error("File " + file + " ignored"); |
| } |
| |
| // See CR: 6982992 Tests CheckAttributedTree.java, JavacTreeScannerTest.java, and SourceTreeeScannerTest.java timeout |
| StringWriter sw = new StringWriter(); |
| PrintWriter pw = new PrintWriter(sw); |
| Reporter r = new Reporter(pw); |
| JavacTool tool = JavacTool.create(); |
| StandardJavaFileManager fm = tool.getStandardFileManager(r, null, null); |
| |
| /** |
| * Read a file. |
| * @param file the file to be read |
| * @return the tree for the content of the file |
| * @throws IOException if any IO errors occur |
| * @throws TreePosTest.ParseException if any errors occur while parsing the file |
| */ |
| JCCompilationUnit read(File file) throws IOException, ParseException { |
| JavacTool tool = JavacTool.create(); |
| r.errors = 0; |
| Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(file); |
| JavacTask task = tool.getTask(pw, fm, r, Collections.<String>emptyList(), null, files); |
| Iterable<? extends CompilationUnitTree> trees = task.parse(); |
| pw.flush(); |
| if (r.errors > 0) |
| throw new ParseException(sw.toString()); |
| Iterator<? extends CompilationUnitTree> iter = trees.iterator(); |
| if (!iter.hasNext()) |
| throw new Error("no trees found"); |
| JCCompilationUnit t = (JCCompilationUnit) iter.next(); |
| if (iter.hasNext()) |
| throw new Error("too many trees found"); |
| return t; |
| } |
| |
| /** |
| * Report an error. When the program is complete, the program will either |
| * exit or throw an Error if any errors have been reported. |
| * @param msg the error message |
| */ |
| void error(String msg) { |
| System.err.println(msg); |
| errors++; |
| } |
| |
| /** |
| * Names for tree tags. |
| */ |
| private static String getTagName(JCTree.Tag tag) { |
| String name = tag.name(); |
| return (name == null) ? "??" : name; |
| } |
| |
| /** Number of files that have been analyzed. */ |
| int fileCount; |
| /** Number of errors reported. */ |
| int errors; |
| /** Flag: don't report irrelevant files. */ |
| boolean quiet; |
| /** Flag: report files as they are processed. */ |
| boolean verbose; |
| /** Flag: show errors in GUI viewer. */ |
| boolean gui; |
| /** Option: encoding for test files. */ |
| String encoding; |
| /** The GUI viewer for errors. */ |
| Viewer viewer; |
| /** The set of tags for tree nodes to be analyzed; if empty, all tree nodes |
| * are analyzed. */ |
| Set<String> tags = new HashSet<String>(); |
| /** Set of files and directories to be excluded from analysis. */ |
| Set<File> excludeFiles = new HashSet<File>(); |
| /** Set of tag names to be excluded from analysis. */ |
| Set<String> excludeTags = new HashSet<String>(); |
| |
| /** |
| * Main class for testing assertions concerning tree positions for tree nodes. |
| */ |
| private class PosTester extends TreeScanner { |
| void test(JCCompilationUnit tree) { |
| sourcefile = tree.sourcefile; |
| endPosTable = tree.endPositions; |
| encl = new Info(); |
| tree.accept(this); |
| } |
| |
| @Override |
| public void scan(JCTree tree) { |
| if (tree == null) |
| return; |
| |
| Info self = new Info(tree, endPosTable); |
| if (check(encl, self)) { |
| // Modifiers nodes are present throughout the tree even where |
| // there is no corresponding source text. |
| // Redundant semicolons in a class definition can cause empty |
| // initializer blocks with no positions. |
| if ((self.tag == MODIFIERS || self.tag == BLOCK) |
| && self.pos == NOPOS) { |
| // If pos is NOPOS, so should be the start and end positions |
| check("start == NOPOS", encl, self, self.start == NOPOS); |
| check("end == NOPOS", encl, self, self.end == NOPOS); |
| } else { |
| // For this node, start , pos, and endpos should be all defined |
| check("start != NOPOS", encl, self, self.start != NOPOS); |
| check("pos != NOPOS", encl, self, self.pos != NOPOS); |
| check("end != NOPOS", encl, self, self.end != NOPOS); |
| // The following should normally be ordered |
| // encl.start <= start <= pos <= end <= encl.end |
| // In addition, the position of the enclosing node should be |
| // within this node. |
| // The primary exceptions are for array type nodes, because of the |
| // need to support legacy syntax: |
| // e.g. int a[]; int[] b[]; int f()[] { return null; } |
| // and because of inconsistent nesting of left and right of |
| // array declarations: |
| // e.g. int[][] a = new int[2][]; |
| if (!(encl.tag == REFERENCE && self.tag == ANNOTATED_TYPE)) { |
| check("encl.start <= start", encl, self, encl.start <= self.start); |
| } |
| check("start <= pos", encl, self, self.start <= self.pos); |
| if (!( (self.tag == TYPEARRAY || |
| isAnnotatedArray(self.tree)) |
| && (encl.tag == VARDEF || |
| encl.tag == METHODDEF || |
| encl.tag == TYPEARRAY || |
| isAnnotatedArray(encl.tree)) |
| || |
| encl.tag == ANNOTATED_TYPE && self.tag == SELECT |
| || |
| encl.tag == REFERENCE && self.tag == ANNOTATED_TYPE |
| )) { |
| check("encl.pos <= start || end <= encl.pos", |
| encl, self, encl.pos <= self.start || self.end <= encl.pos); |
| } |
| check("pos <= end", encl, self, self.pos <= self.end); |
| if (!( (self.tag == TYPEARRAY || isAnnotatedArray(self.tree)) && |
| (encl.tag == TYPEARRAY || isAnnotatedArray(encl.tree)) |
| || |
| encl.tag == MODIFIERS && self.tag == ANNOTATION |
| ) ) { |
| check("end <= encl.end", encl, self, self.end <= encl.end); |
| } |
| } |
| } |
| |
| Info prevEncl = encl; |
| encl = self; |
| tree.accept(this); |
| encl = prevEncl; |
| } |
| |
| private boolean isAnnotatedArray(JCTree tree) { |
| return tree.hasTag(ANNOTATED_TYPE) && |
| ((JCAnnotatedType)tree).underlyingType.hasTag(TYPEARRAY); |
| } |
| |
| @Override |
| public void visitVarDef(JCVariableDecl tree) { |
| // enum member declarations are desugared in the parser and have |
| // ill-defined semantics for tree positions, so for now, we |
| // skip the synthesized bits and just check parts which came from |
| // the original source text |
| if ((tree.mods.flags & Flags.ENUM) != 0) { |
| scan(tree.mods); |
| if (tree.init != null) { |
| if (tree.init.hasTag(NEWCLASS)) { |
| JCNewClass init = (JCNewClass) tree.init; |
| if (init.args != null && init.args.nonEmpty()) { |
| scan(init.args); |
| } |
| if (init.def != null && init.def.defs != null) { |
| scan(init.def.defs); |
| } |
| } |
| } |
| } else |
| super.visitVarDef(tree); |
| } |
| |
| boolean check(Info encl, Info self) { |
| if (excludeTags.size() > 0) { |
| if (encl != null && excludeTags.contains(getTagName(encl.tag)) |
| || excludeTags.contains(getTagName(self.tag))) |
| return false; |
| } |
| return tags.size() == 0 || tags.contains(getTagName(self.tag)); |
| } |
| |
| void check(String label, Info encl, Info self, boolean ok) { |
| if (!ok) { |
| if (gui) { |
| if (viewer == null) |
| viewer = new Viewer(); |
| viewer.addEntry(sourcefile, label, encl, self); |
| } |
| |
| String s = "encl: " + encl.tree.toString() + |
| " this: " + self.tree.toString(); |
| String msg = sourcefile.getName() + ": " + label + ": " + |
| "encl:" + encl + " this:" + self + "\n" + |
| s.substring(0, Math.min(80, s.length())).replaceAll("[\r\n]+", " "); |
| error(msg); |
| } |
| } |
| |
| JavaFileObject sourcefile; |
| EndPosTable endPosTable; |
| Info encl; |
| |
| } |
| |
| /** |
| * Utility class providing easy access to position and other info for a tree node. |
| */ |
| private class Info { |
| Info() { |
| tree = null; |
| tag = ERRONEOUS; |
| start = 0; |
| pos = 0; |
| end = Integer.MAX_VALUE; |
| } |
| |
| Info(JCTree tree, EndPosTable endPosTable) { |
| this.tree = tree; |
| tag = tree.getTag(); |
| start = TreeInfo.getStartPos(tree); |
| pos = tree.pos; |
| end = TreeInfo.getEndPos(tree, endPosTable); |
| } |
| |
| @Override |
| public String toString() { |
| return getTagName(tree.getTag()) + "[start:" + start + ",pos:" + pos + ",end:" + end + "]"; |
| } |
| |
| final JCTree tree; |
| final JCTree.Tag tag; |
| final int start; |
| final int pos; |
| final int end; |
| } |
| |
| /** |
| * Thrown when errors are found parsing a java file. |
| */ |
| private static class ParseException extends Exception { |
| ParseException(String msg) { |
| super(msg); |
| } |
| } |
| |
| /** |
| * DiagnosticListener to report diagnostics and count any errors that occur. |
| */ |
| private static class Reporter implements DiagnosticListener<JavaFileObject> { |
| Reporter(PrintWriter out) { |
| this.out = out; |
| } |
| |
| public void report(Diagnostic<? extends JavaFileObject> diagnostic) { |
| out.println(diagnostic); |
| switch (diagnostic.getKind()) { |
| case ERROR: |
| errors++; |
| } |
| } |
| int errors; |
| PrintWriter out; |
| } |
| |
| /** |
| * GUI viewer for issues found by TreePosTester. The viewer provides a drop |
| * down list for selecting error conditions, a header area providing details |
| * about an error, and a text area with the ranges of text highlighted as |
| * appropriate. |
| */ |
| private class Viewer extends JFrame { |
| /** |
| * Create a viewer. |
| */ |
| Viewer() { |
| initGUI(); |
| } |
| |
| /** |
| * Add another entry to the list of errors. |
| * @param file The file containing the error |
| * @param check The condition that was being tested, and which failed |
| * @param encl the enclosing tree node |
| * @param self the tree node containing the error |
| */ |
| void addEntry(JavaFileObject file, String check, Info encl, Info self) { |
| Entry e = new Entry(file, check, encl, self); |
| DefaultComboBoxModel m = (DefaultComboBoxModel) entries.getModel(); |
| m.addElement(e); |
| if (m.getSize() == 1) |
| entries.setSelectedItem(e); |
| } |
| |
| /** |
| * Initialize the GUI window. |
| */ |
| private void initGUI() { |
| JPanel head = new JPanel(new GridBagLayout()); |
| GridBagConstraints lc = new GridBagConstraints(); |
| GridBagConstraints fc = new GridBagConstraints(); |
| fc.anchor = GridBagConstraints.WEST; |
| fc.fill = GridBagConstraints.HORIZONTAL; |
| fc.gridwidth = GridBagConstraints.REMAINDER; |
| |
| entries = new JComboBox(); |
| entries.addActionListener(new ActionListener() { |
| public void actionPerformed(ActionEvent e) { |
| showEntry((Entry) entries.getSelectedItem()); |
| } |
| }); |
| fc.insets.bottom = 10; |
| head.add(entries, fc); |
| fc.insets.bottom = 0; |
| head.add(new JLabel("check:"), lc); |
| head.add(checkField = createTextField(80), fc); |
| fc.fill = GridBagConstraints.NONE; |
| head.add(setBackground(new JLabel("encl:"), enclColor), lc); |
| head.add(enclPanel = new InfoPanel(), fc); |
| head.add(setBackground(new JLabel("self:"), selfColor), lc); |
| head.add(selfPanel = new InfoPanel(), fc); |
| add(head, BorderLayout.NORTH); |
| |
| body = new JTextArea(); |
| body.setFont(Font.decode(Font.MONOSPACED)); |
| body.addCaretListener(new CaretListener() { |
| public void caretUpdate(CaretEvent e) { |
| int dot = e.getDot(); |
| int mark = e.getMark(); |
| if (dot == mark) |
| statusText.setText("dot: " + dot); |
| else |
| statusText.setText("dot: " + dot + ", mark:" + mark); |
| } |
| }); |
| JScrollPane p = new JScrollPane(body, |
| JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, |
| JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); |
| p.setPreferredSize(new Dimension(640, 480)); |
| add(p, BorderLayout.CENTER); |
| |
| statusText = createTextField(80); |
| add(statusText, BorderLayout.SOUTH); |
| |
| pack(); |
| setLocationRelativeTo(null); // centered on screen |
| setVisible(true); |
| setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); |
| } |
| |
| /** Show an entry that has been selected. */ |
| private void showEntry(Entry e) { |
| try { |
| // update simple fields |
| setTitle(e.file.getName()); |
| checkField.setText(e.check); |
| enclPanel.setInfo(e.encl); |
| selfPanel.setInfo(e.self); |
| // show file text with highlights |
| body.setText(e.file.getCharContent(true).toString()); |
| Highlighter highlighter = body.getHighlighter(); |
| highlighter.removeAllHighlights(); |
| addHighlight(highlighter, e.encl, enclColor); |
| addHighlight(highlighter, e.self, selfColor); |
| scroll(body, getMinPos(enclPanel.info, selfPanel.info)); |
| } catch (IOException ex) { |
| body.setText("Cannot read " + e.file.getName() + ": " + e); |
| } |
| } |
| |
| /** Create a test field. */ |
| private JTextField createTextField(int width) { |
| JTextField f = new JTextField(width); |
| f.setEditable(false); |
| f.setBorder(null); |
| return f; |
| } |
| |
| /** Add a highlighted region based on the positions in an Info object. */ |
| private void addHighlight(Highlighter h, Info info, Color c) { |
| int start = info.start; |
| int end = info.end; |
| if (start == -1 && end == -1) |
| return; |
| if (start == -1) |
| start = end; |
| if (end == -1) |
| end = start; |
| try { |
| h.addHighlight(info.start, info.end, |
| new DefaultHighlighter.DefaultHighlightPainter(c)); |
| if (info.pos != -1) { |
| Color c2 = new Color(c.getRed(), c.getGreen(), c.getBlue(), (int)(.4f * 255)); // 40% |
| h.addHighlight(info.pos, info.pos + 1, |
| new DefaultHighlighter.DefaultHighlightPainter(c2)); |
| } |
| } catch (BadLocationException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| /** Get the minimum valid position in a set of info objects. */ |
| private int getMinPos(Info... values) { |
| int i = Integer.MAX_VALUE; |
| for (Info info: values) { |
| if (info.start >= 0) i = Math.min(i, info.start); |
| if (info.pos >= 0) i = Math.min(i, info.pos); |
| if (info.end >= 0) i = Math.min(i, info.end); |
| } |
| return (i == Integer.MAX_VALUE) ? 0 : i; |
| } |
| |
| /** Set the background on a component. */ |
| private JComponent setBackground(JComponent comp, Color c) { |
| comp.setOpaque(true); |
| comp.setBackground(c); |
| return comp; |
| } |
| |
| /** Scroll a text area to display a given position near the middle of the visible area. */ |
| private void scroll(final JTextArea t, final int pos) { |
| // Using invokeLater appears to give text a chance to sort itself out |
| // before the scroll happens; otherwise scrollRectToVisible doesn't work. |
| // Maybe there's a better way to sync with the text... |
| EventQueue.invokeLater(new Runnable() { |
| public void run() { |
| try { |
| Rectangle r = t.modelToView(pos); |
| JScrollPane p = (JScrollPane) SwingUtilities.getAncestorOfClass(JScrollPane.class, t); |
| r.y = Math.max(0, r.y - p.getHeight() * 2 / 5); |
| r.height += p.getHeight() * 4 / 5; |
| t.scrollRectToVisible(r); |
| } catch (BadLocationException ignore) { |
| } |
| } |
| }); |
| } |
| |
| private JComboBox entries; |
| private JTextField checkField; |
| private InfoPanel enclPanel; |
| private InfoPanel selfPanel; |
| private JTextArea body; |
| private JTextField statusText; |
| |
| private Color selfColor = new Color(0.f, 1.f, 0.f, 0.2f); // 20% green |
| private Color enclColor = new Color(1.f, 0.f, 0.f, 0.2f); // 20% red |
| |
| /** Panel to display an Info object. */ |
| private class InfoPanel extends JPanel { |
| InfoPanel() { |
| add(tagName = createTextField(20)); |
| add(new JLabel("start:")); |
| add(addListener(start = createTextField(6))); |
| add(new JLabel("pos:")); |
| add(addListener(pos = createTextField(6))); |
| add(new JLabel("end:")); |
| add(addListener(end = createTextField(6))); |
| } |
| |
| void setInfo(Info info) { |
| this.info = info; |
| tagName.setText(getTagName(info.tag)); |
| start.setText(String.valueOf(info.start)); |
| pos.setText(String.valueOf(info.pos)); |
| end.setText(String.valueOf(info.end)); |
| } |
| |
| JTextField addListener(final JTextField f) { |
| f.addMouseListener(new MouseAdapter() { |
| @Override |
| public void mouseClicked(MouseEvent e) { |
| body.setCaretPosition(Integer.valueOf(f.getText())); |
| body.getCaret().setVisible(true); |
| } |
| }); |
| return f; |
| } |
| |
| Info info; |
| JTextField tagName; |
| JTextField start; |
| JTextField pos; |
| JTextField end; |
| } |
| |
| /** Object to record information about an error to be displayed. */ |
| private class Entry { |
| Entry(JavaFileObject file, String check, Info encl, Info self) { |
| this.file = file; |
| this.check = check; |
| this.encl = encl; |
| this.self= self; |
| } |
| |
| @Override |
| public String toString() { |
| return file.getName() + " " + check + " " + getMinPos(encl, self); |
| } |
| |
| final JavaFileObject file; |
| final String check; |
| final Info encl; |
| final Info self; |
| } |
| } |
| } |
| |
