jdk8-mips64-public/langtools: test/tools/javac/diags/RunExamples.java@584365f256a7 (annotated)

test/tools/javac/diags/RunExamples.java@584365f256a7 (annotated)

test/tools/javac/diags/RunExamples.java

Tue, 07 Sep 2010 17:32:27 +0100

author: mcimadamore
date: Tue, 07 Sep 2010 17:32:27 +0100
changeset 674: 584365f256a7
parent 610: 3640b60bd0f6
child 795: 7b99f98b3035
permissions: -rw-r--r--

6979327: method handle invocation should use casts instead of type parameters to specify return type
Summary: infer return type for polymorphic signature calls according to updated JSR 292 draft
Reviewed-by: jjg
Contributed-by: john.r.rose@oracle.com

 /*
  * Copyright (c) 2010, 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.
  */
 /**
  * @test
  * @bug 6968063
  * @summary provide examples of code that generate diagnostics
  * @build Example HTMLWriter RunExamples
  * @run main RunExamples
  */
 import java.io.*;
 import java.text.SimpleDateFormat;
 import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 /**
  * Utility to run selected or all examples, writing results to
  * stdout, a plain text file or an HTML file. This program can be
  * run standalone, or as a jtreg test.
  *
  * Options:
  *  -examples dir       directory of examples. Defaults to ${test.src}/examples
  *  -raw                run examples with -XDrawDiagnostics
  *  -showFiles          include text of source files in the output
  *  -verbose            verbose output
  *  -o file             write output to file: format will be HTML if
  *                      file has .html extension; otherwise it will be plain text.
  *                      default is to stdout
  *  -title string       specify a title, only applies to HTML output
  */
 public class RunExamples {
     public static void main(String... args) throws Exception {
         boolean jtreg = (System.getProperty("test.src") != null);
         File tmpDir;
         if (jtreg) {
             // use standard jtreg scratch directory: the current directory
             tmpDir = new File(System.getProperty("user.dir"));
         } else {
             tmpDir = new File(System.getProperty("java.io.tmpdir"),
                     RunExamples.class.getName()
                     + (new SimpleDateFormat("yyMMddHHmmss")).format(new Date()));
         }
         Example.setTempDir(tmpDir);
         RunExamples r = new RunExamples();
         try {
             if (r.run(args))
                 return;
         } finally {
             /* VERY IMPORTANT NOTE. In jtreg mode, tmpDir is set to the
              * jtreg scratch directory, which is the current directory.
              * In case someone is faking jtreg mode, make sure to only
              * clean tmpDir when it is reasonable to do so.
              */
             if (tmpDir.isDirectory() &&
                     tmpDir.getName().startsWith(RunExamples.class.getName())) {
                 if (clean(tmpDir))
                     tmpDir.delete();
             }
         }
         if (jtreg)
             throw new Exception(r.errors + " errors occurred");
         else
             System.exit(1);
     }
     boolean run(String... args) {
         Set<String> selectedKeys = new TreeSet<String>();
         Set<Example> selectedExamples = new TreeSet<Example>();
         File testSrc = new File(System.getProperty("test.src", "."));
         File examplesDir = new File(testSrc, "examples");
         File outFile = null;
         boolean raw = false;
         boolean showFiles = false;
         boolean verbose = false;
         String title = null;
         for (int i = 0; i < args.length; i++) {
             String arg = args[i];
             if (arg.equals("-k") && (i + 1) < args.length)
                 selectedKeys.add(args[++i]);
             else if (arg.equals("-examples") && (i + 1) < args.length)
                 examplesDir = new File(args[++i]);
             else if (arg.equals("-raw"))
                 raw = true;
             else if (arg.equals("-showFiles"))
                 showFiles = true;
             else if (arg.equals("-verbose"))
                 verbose = true;
             else if (arg.equals("-o") && (i + 1) < args.length)
                 outFile = new File(args[++i]);
             else if (arg.equals("-title") && (i + 1) < args.length)
                 title = args[++i];
             else if (arg.startsWith("-")) {
                 error("unknown option: " + arg);
                 return false;
             } else {
                 while (i < args.length) {
                     File f = new File(examplesDir, args[i]);
                     selectedExamples.add(new Example(f));
                     i++;
                 }
             }
         }
         if (selectedKeys.size() > 0) {
             Set<Example> examples = getExamples(examplesDir);
         nextKey:
             for (String k: selectedKeys) {
                 for (Example e: examples) {
                     if (e.getDeclaredKeys().contains(k))
                         continue nextKey;
                 }
                 error("Key " + k + ": no examples found");
             }
         } else {
             if (selectedExamples.size() == 0)
                 selectedExamples = getExamples(examplesDir);
         }
         try {
             Runner r;
             if (outFile == null) {
                 PrintWriter out = new PrintWriter(System.out);
                 r = new TextRunner(out, showFiles, raw, verbose);
             } else if (outFile.getName().endsWith(".html"))
                 r = new HTMLRunner(outFile, showFiles, raw, verbose, title);
             else
                 r = new TextRunner(outFile, showFiles, raw, verbose);
             r.run(selectedExamples);
             r.close();
         } catch (IOException e) {
             error("Error writing output: " + e);
         }
         return (errors == 0);
     }
     /**
      * Get the complete set of examples to be checked.
      */
     Set<Example> getExamples(File examplesDir) {
         Set<Example> results = new TreeSet<Example>();
         for (File f: examplesDir.listFiles()) {
             if (f.isDirectory() || f.isFile() && f.getName().endsWith(".java"))
                 results.add(new Example(f));
         }
         return results;
     }
     /**
      * Report an error.
      */
     void error(String msg) {
         System.err.println("Error: " + msg);
         errors++;
     }
     int errors;
     /**
      * Clean the contents of a directory.
      */
     static boolean clean(File dir) {
         boolean ok = true;
         for (File f: dir.listFiles()) {
             if (f.isDirectory())
                 ok &= clean(f);
             ok &= f.delete();
         }
         return ok;
     }
     static abstract class Runner {
         Runner(boolean showFiles, boolean raw, boolean verbose) {
             this.showFiles = showFiles;
             this.raw = raw;
             this.verbose = verbose;
         }
         void close() throws IOException { }
         void run(Collection<Example> examples) throws IOException {
             for (Example e: examples) {
                 startExample(e);
                 if (showFiles) {
                     showFile(e, e.infoFile);
                     Set<File> srcFiles = new TreeSet<File>(e.srcFiles);
                     srcFiles.remove(e.infoFile);
                     showFiles(e, srcFiles);
                     showFiles(e, e.srcPathFiles);
                     showFiles(e, e.procFiles);
                     showFiles(e, e.supportFiles);
                 }
                 run(e);
             }
         }
         void showFiles(Example e, Collection<File> files) throws IOException {
             for (File f: files)
                 showFile(e, f);
         }
         abstract void startExample(Example e) throws IOException;
         abstract void showFile(Example e, File f) throws IOException;
         abstract void run(Example e) throws IOException;
         protected String read(File f) throws IOException {
             byte[] bytes = new byte[(int) f.length()];
             DataInputStream in = new DataInputStream(new FileInputStream(f));
             try {
                 in.readFully(bytes);
             } finally {
                 in.close();
             }
             return new String(bytes);
         }
         protected Pattern copyrightHeaderPat =
                 Pattern.compile("(?s)(/\\*.*?Copyright.*?\\*/\n)\\s*(.*)");
         protected Pattern infoHeaderPat =
                 Pattern.compile("(?s)((?://\\s*[a-z]+:[^\n]*\n)+)\\s*(.*)");
         protected boolean showFiles;
         protected boolean raw;
         protected boolean verbose;
     }
     static class TextRunner extends Runner {
         TextRunner(File file, boolean showFiles, boolean raw, boolean verbose)
                 throws IOException {
             super(showFiles, raw, verbose);
             this.file = file;
             out = new PrintWriter(new FileWriter(file));
         }
         TextRunner(PrintWriter out, boolean showFiles, boolean raw, boolean verbose)
                 throws IOException {
             super(showFiles, raw, verbose);
             this.out = out;
         }
         @Override
         void close() {
             if (file != null)
                 out.close();
         }
         @Override
         void startExample(Example e) {
             out.println("----- " + e.getName() + " --------------------");
             out.println();
         }
         @Override
         void showFile(Example e, File f) {
             out.println("--- " + f);
             String text;
             try {
                 text = read(f);
             } catch (IOException ex) {
                 text = "Error reading " + f + "; " + ex;
             }
             Matcher m = copyrightHeaderPat.matcher(text);
             if (m.matches()) {
                 out.println("(Copyright)");
                 writeLines(m.group(2));
             } else {
                 writeLines(text);
             }
             out.println();
         }
         @Override
         void run(Example e) {
             // only show Output: header if also showing files
             if (showFiles)
                 out.println("--- Output:");
             e.run(out, raw, verbose);
             out.println();
         }
         void writeLines(String text) {
             for (String line: text.split("\n"))
                 out.println(line);
         }
         File file;
         PrintWriter out;
     }
     static class HTMLRunner extends Runner {
         HTMLRunner(File file, boolean showFiles, boolean raw, boolean verbose, String title)
                 throws IOException {
             super(showFiles, raw, verbose);
             this.file = file;
             PrintWriter out = new PrintWriter(new FileWriter(file));
             html = new HTMLWriter(out);
             html.startTag(HTMLWriter.HEAD);
             if (title != null) {
                 html.startTag(HTMLWriter.TITLE);
                 html.write(title);
                 html.endTag(HTMLWriter.TITLE);
             }
             html.startTag(HTMLWriter.STYLE);
             html.newLine();
             html.writeLine("div.file { background-color:#e0ffe0; margin-left:30px; margin-right:30px;\n"
                     + "  padding: 3px; border: thin solid silver; }");
             html.writeLine("p.file { white-space: pre-wrap; font-family:monospace; margin: 0; }");
             html.writeLine("div.output { background-color:#e0e0ff; margin-left:30px; margin-right:30px;\n"
                     + "  padding: 3px; border: thin solid silver; }");
             html.writeLine("p.output { white-space: pre-wrap; font-family:monospace; margin: 0; }");
             html.writeLine("table.index { border: thin solid silver; }");
             html.writeLine(".copyright { font-size: x-small }");
             html.writeLine(".hidden { display:none }");
             html.writeLine(".unhidden { display:block }");
             html.writeLine(".odd { background-color: #e0e0e0 }");
             html.writeLine(".even { background-color: white }");
             html.endTag(HTMLWriter.STYLE);
             html.startTag(HTMLWriter.SCRIPT);
             html.writeAttr(HTMLWriter.TYPE, HTMLWriter.TEXT_JAVASCRIPT);
             html.writeLine("\nfunction unhide(id) {\n"
                         + "  var item = document.getElementById(id);\n"
                         + "  if (item) {\n"
                         + "    item.className=(item.className=='hidden')?'unhidden':'hidden';\n"
                         + "  }\n"
                         + "}");
             html.endTag(HTMLWriter.SCRIPT);
             html.endTag(HTMLWriter.HEAD);
             html.startTag(HTMLWriter.BODY);
             if (title != null) {
                 html.startTag(TITLE_HEADER);
                 html.write(title);
                 html.endTag(TITLE_HEADER);
             }
         }
         @Override
         void close() throws IOException {
             html.endTag(HTMLWriter.BODY);
             html.newLine();
             html.flush();
         }
         @Override
         void run(Collection<Example> examples) throws IOException {
             if (examples.size() > 1)
                 writeIndex(examples);
             super.run(examples);
         }
         void writeIndex(Collection<Example> examples) throws IOException {
             Map<String, Set<Example>> index = new TreeMap<String, Set<Example>>();
             Set<String> initials = new HashSet<String>();
             for (Example e: examples) {
                 for (String k: e.getDeclaredKeys()) {
                     Set<Example> s = index.get(k);
                     if (s == null)
                         index.put(k, s = new TreeSet<Example>());
                     s.add(e);
                 }
                 initials.add(e.getName().substring(0, 1).toUpperCase());
             }
             if (INDEX_HEADER != null) {
                 html.startTag(INDEX_HEADER);
                 html.write("Index");
                 html.endTag(INDEX_HEADER);
             }
             html.startTag(HTMLWriter.P);
             html.writeLine("Examples: ");
             for (char initial = 'A'; initial <= 'Z'; initial++) {
                 String s = String.valueOf(initial);
                 if (initials.contains(s)) {
                     html.writeLink("#" + s, s);
                 } else {
                     html.write(s);
                 }
                 html.newLine();
             }
             html.endTag(HTMLWriter.P);
             html.startTag(HTMLWriter.TABLE);
             html.writeAttr(HTMLWriter.CLASS, "index");
             html.newLine();
             int row = 0;
             for (Map.Entry<String, Set<Example>> entry: index.entrySet()) {
                 html.startTag(HTMLWriter.TR);
                 html.writeAttr(HTMLWriter.CLASS,
                         (row++ % 2 == 0 ? "even" : "odd"));
                 html.startTag(HTMLWriter.TD);
                 html.writeAttr("valign", "top");
                 html.write(entry.getKey());
                 html.endTag(HTMLWriter.TD);
                 html.newLine();
                 html.startTag(HTMLWriter.TD);
                 html.writeAttr(HTMLWriter.ALIGN, "top");
                 String sep = "";
                 for (Example e: entry.getValue()) {
                     html.write(sep);
                     html.writeLink('#' + e.getName(), e.getName());
                     sep = ", ";
                 }
                 html.endTag(HTMLWriter.TD);
                 html.endTag(HTMLWriter.TR);
                 html.newLine();
             }
             html.endTag(HTMLWriter.TABLE);
         }
         @Override
         void startExample(Example e) throws IOException {
             String name = e.getName();
             String initial = name.substring(0, 1).toUpperCase();
             if (!initial.equals(currInitial)) {
                 html.writeLinkDestination(initial, "");
                 currInitial = initial;
             }
             html.writeLinkDestination(name, "");
             html.startTag(EXAMPLE_HEADER);
             html.write(e.getName());
             html.endTag(EXAMPLE_HEADER);
         }
         @Override
         void showFile(Example e, File f) throws IOException {
             String text;
             try {
                 text = read(f);
             } catch (IOException ex) {
                 text = "Error reading " + f + ": " + ex;
             }
             if (!f.equals(e.file)) {
                 html.startTag(FILE_HEADER);
                 html.write(e.file.toURI().relativize(f.toURI()).toString());
                 html.endTag(FILE_HEADER);
             }
             html.startTag(HTMLWriter.DIV);
             html.writeAttr(CLASS, FILE);
             String legalHeader;
             Matcher m1 = copyrightHeaderPat.matcher(text);
             if (m1.matches()) {
                 legalHeader = m1.group(1);
                 text = m1.group(2);
             } else
                 legalHeader = null;
             String infoHeader;
             Matcher m2 = infoHeaderPat.matcher(text);
             if (m2.matches()) {
                 infoHeader = m2.group(1);
                 text = m2.group(2);
             } else
                 infoHeader = null;
             String legalId = null, infoId = null;
             if (legalHeader != null || infoHeader != null) {
                 String sep = "";
                 html.startTag(HTMLWriter.SPAN);
                 html.writeStyleAttr("float: right");
                 if (legalHeader != null) {
                     legalId = nextId();
                     html.startTag(HTMLWriter.A);
                     html.writeAttr(HTMLWriter.HREF, "javascript:unhide('" + legalId + "');");
                     //html.writeEntity("&copy;");
                     html.write("Copyright");
                     html.endTag(HTMLWriter.A);
                     sep = ", ";
                 }
                 if (infoHeader != null) {
                     html.write(sep);
                     infoId = nextId();
                     html.startTag(HTMLWriter.A);
                     html.writeAttr(HTMLWriter.HREF, "javascript:unhide('" + infoId + "');");
                     html.write("Info");
                     html.endTag(HTMLWriter.A);
                     sep = ", ";
                 }
                 html.endTag(HTMLWriter.SPAN);
             }
             html.startTag(HTMLWriter.P);
             html.writeAttr(CLASS, FILE);
             if (legalHeader != null) {
                 html.startTag(HTMLWriter.SPAN);
                 html.writeAttr(HTMLWriter.CLASS, "hidden");
                 html.writeAttr(HTMLWriter.ID, legalId);
                 html.write(legalHeader);
                 html.newLine();
                 html.endTag(HTMLWriter.SPAN);
             }
             if (infoHeader != null) {
                 html.startTag(HTMLWriter.SPAN);
                 html.writeAttr(HTMLWriter.CLASS, "hidden");
                 html.writeAttr(HTMLWriter.ID, infoId);
                 html.write(infoHeader);
                 html.newLine();
                 html.endTag(HTMLWriter.SPAN);
             }
             html.write(text);
             html.endTag(HTMLWriter.P);
             html.endTag(HTMLWriter.DIV);
         }
         @Override
         void run(Example e) throws IOException {
             StringWriter sw = new StringWriter();
             PrintWriter pw = new PrintWriter(sw);
             e.run(pw, raw, verbose);
             pw.flush();
             // only show Output: header if also showing files
             if (showFiles) {
                 html.startTag(OUTPUT_HEADER);
                 html.write("Output:");
                 html.endTag(OUTPUT_HEADER);
             }
             html.startTag(HTMLWriter.DIV);
             html.writeAttr(CLASS, OUTPUT);
             html.startTag(HTMLWriter.P);
             html.writeAttr(CLASS, OUTPUT);
             String[] lines = sw.toString().split("\n");
             for (String line: lines) {
                 html.write(line);
                 html.newLine();
             }
             html.endTag(HTMLWriter.P);
             html.endTag(HTMLWriter.DIV);
         }
         String nextId() {
             return "id" + (nextId++);
         }
         File file;
         HTMLWriter html;
         int nextId;
         String currInitial = "";
         static final String TITLE_HEADER = HTMLWriter.H3;
         static final String INDEX_HEADER = HTMLWriter.H4;
         static final String EXAMPLE_HEADER = HTMLWriter.H4;
         static final String FILE_HEADER = HTMLWriter.H5;
         static final String OUTPUT_HEADER = HTMLWriter.H5;
         static final String CLASS = "class";
         static final String FILE = "file";
         static final String OUTPUT = "output";
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/diags/RunExamples.java@584365f256a7 (annotated)

test/tools/javac/diags/RunExamples.java