Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * 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.

  */

 import java.io.BufferedWriter;

 import java.io.File;

 import java.io.FileWriter;

 import java.io.IOException;

 import java.io.StringWriter;

 import java.util.Arrays;

 import java.util.Iterator;

 import java.util.List;

 import javax.lang.model.element.Element;

 import javax.tools.DiagnosticCollector;

 import javax.tools.JavaCompiler;

 import javax.tools.JavaFileObject;

 import javax.tools.StandardJavaFileManager;

 import javax.tools.ToolProvider;

 import com.sun.source.tree.CompilationUnitTree;

 import com.sun.source.util.JavacTask;

 /**

  * @test

  * @bug 6956638

  * @summary JavacTask.generate does not generate all required files

  */

 public class T6956638 {

     public static void main(String[] args) throws Exception {

         new T6956638().run();

     }

     void run() throws Exception {

         File srcDir = new File("src");

         File[] files = {

             writeFile(new File(srcDir, "T1.java"),

                 "public class T1 extends T2 {}\n"),

             writeFile(new File(srcDir, "T2.java"),

                 "public class T2 extends T3 {}\n"),

             writeFile(new File(srcDir, "T3.java"),

                 "public class T3 { public static final int C = 1; }\n"),

             writeFile(new File(srcDir, "Test.java"),

                 "public class Test { public static final int D = T1.C; }\n")

         };

         for (File f1: files) {

             for (File f2: files) {

                 if (f2 == f1) continue;

                 for (File f3: files) {

                     if (f3 == f2 || f3 == f1) continue;

                     for (File f4: files) {

                         if (f4 == f3 || f4 == f2 || f4 == f1) continue;

                         try {

                             test(f1, f2, f3, f4);

                         } catch (Exception e) {

                             error(e);

                         }

                     }

                 }

             }

         }

         if (errors > 0)

             throw new Exception(errors + " tests failed");

     }

     void test(File... sourceFiles) throws Exception {

         System.err.println("Test " + (++count) + ": " + Arrays.asList(sourceFiles));

         File classesDir = new File("classes" + count);

         classesDir.mkdirs();

         StringWriter compilerOutputStream = new StringWriter();

         List<String> compileOptions = Arrays.asList("-d", classesDir.getPath());

         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

         DiagnosticCollector<JavaFileObject> diagnosticCollector = new DiagnosticCollector<JavaFileObject>();

         StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnosticCollector, null, null);

         Iterable<? extends JavaFileObject> sourceFileObjects = fileManager.getJavaFileObjects(sourceFiles);

         System.err.println("1- javac given java source JavaFileObjects " + sourceFileObjects);

         JavaCompiler.CompilationTask task = compiler.getTask(compilerOutputStream, fileManager, null, compileOptions, null, sourceFileObjects);

         JavacTask javacTask = (JavacTask) task;

         Iterable<? extends CompilationUnitTree> parsedTrees = javacTask.parse();

         Iterable<? extends Element> analyzedTrees = javacTask.analyze();

         Iterable<? extends JavaFileObject> generatedFiles = javacTask.generate();

         System.err.println("2- parsed:" + size(parsedTrees) + " analysed:" + size(analyzedTrees) + " generated:" + size(generatedFiles));

         System.err.print("3-");

         for (JavaFileObject f : generatedFiles)

             System.err.print(" " + f);

         System.err.println("");

         System.err.print("5-");

         for (File f : classesDir.listFiles())

             System.err.print(" " + f);

         System.err.println("");

         System.err.println("----");

         System.err.println(compilerOutputStream.toString());

         if (size(generatedFiles) != size(parsedTrees)) {

             throw new Exception("wrong number of files generated: " + size(generatedFiles)

                     + " expected: " + size(parsedTrees));

         }

     }

     private void error(Throwable t) {

         t.printStackTrace();

         errors++;

     }

     int count;

     int errors;

     private static <E> int size(Iterable<E> x) {

         int n = 0;

         for (Iterator<E> iter = x.iterator(); iter.hasNext(); ++n)

             iter.next();

         return n;

     }

     private static File writeFile(File f, String str) throws IOException {

         f.getParentFile().mkdirs();

         BufferedWriter fout = new BufferedWriter(new FileWriter(f));

         try {

             fout.write(str);

             fout.flush();

         } finally {

             fout.close();

         }

         return f;

     }

 }