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

 /*

  * Copyright (c) 2006, 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     6413682

  * @summary Compiler confused about implicit type args and arrays

  * @author  Peter von der Ah\u00e9

  */

 import com.sun.source.tree.CompilationUnitTree;

 import com.sun.source.tree.ErroneousTree;

 import com.sun.source.tree.Tree;

 import com.sun.source.util.JavacTask;

 import com.sun.source.util.TreeScanner;

 import com.sun.source.util.Trees;

 import java.io.IOException;

 import java.net.URI;

 import java.util.Collections;

 import java.util.List;

 import javax.tools.Diagnostic;

 import javax.tools.DiagnosticListener;

 import javax.tools.JavaCompiler;

 import javax.tools.JavaFileObject;

 import javax.tools.SimpleJavaFileObject;

 import static javax.tools.JavaFileObject.Kind.SOURCE;

 import javax.tools.ToolProvider;

 public class TestPos {

     static final String errCode = "compiler.err.cannot.create.array.with.type.arguments";

     static final String expected =

         String.format("%s%n%s%n",

                       "compiler.err.cannot.create.array.with.type.arguments @ 33",

                       "begin=28, end=50 : new Object[0],T,e,s,t");

     public static void main(String... args) throws IOException {

         final boolean[] sawError = { false };

         final StringBuilder log = new StringBuilder();

         class MyFileObject extends SimpleJavaFileObject {

             MyFileObject() {

                 super(URI.create("myfo:///Test.java"), SOURCE);

             }

             @Override

             public String getCharContent(boolean ignoreEncodingErrors) {

                 //      0         1         2         3         4         5

                 //      0123456789012345678901234567890123456789012345678901234

                 return "class Test { { Object[] o = new <T,e,s,t>Object[0]; } }";

             }

         }

         class Scanner extends TreeScanner<Void,Trees> {

             CompilationUnitTree toplevel = null;

             @Override

             public Void visitCompilationUnit(CompilationUnitTree node, Trees trees) {

                 toplevel = node;

                 return super.visitCompilationUnit(node, trees);

             }

             @Override

             public Void visitErroneous(ErroneousTree node, Trees trees) {

                 sawError[0] = true;

                 long startPos = trees.getSourcePositions().getStartPosition(toplevel, node);

                 long endPos = trees.getSourcePositions().getEndPosition(toplevel, node);

                 log.append(String.format("begin=%s, end=%s : %s%n",

                                          startPos,

                                          endPos,

                                          node.getErrorTrees()));

                 if (startPos != 28)

                     error("Start pos for %s is incorrect (%s)!", node, startPos);

                 if (endPos != 50)

                     error("End pos for %s is incorrect (%s)!", node, endPos);

                 return null;

             }

         }

         JavaCompiler javac = ToolProvider.getSystemJavaCompiler();

         List<JavaFileObject> compilationUnits =

                 Collections.<JavaFileObject>singletonList(new MyFileObject());

         DiagnosticListener<JavaFileObject> dl = new DiagnosticListener<JavaFileObject>() {

             public void report(Diagnostic<? extends JavaFileObject> diag) {

                 log.append(String.format("%s @ %s%n", diag.getCode(), diag.getPosition()));

                 if (!diag.getCode().equals(errCode))

                     error("unexpected error");

                 if (diag.getPosition() != 33)

                     error("Error pos for %s is incorrect (%s)!",

                           diag.getCode(), diag.getPosition());

                 sawError[0] = true;

             }

         };

         JavacTask task = (JavacTask)javac.getTask(null, null, dl, null, null,

                                                   compilationUnits);

         Trees trees = Trees.instance(task);

         Iterable<? extends Tree> toplevels = task.parse();

         if (!sawError[0])

             error("No parse error detected");

         sawError[0] = false;

         new Scanner().scan(toplevels, trees);

         if (!sawError[0])

             error("No error tree detected");

         if (!log.toString().equals(expected))

             error("Unexpected log message: %n%s%n", log);

         System.out.print(log);

         System.out.flush();

     }

     static void error(String format, Object... args) {

         throw new AssertionError(String.format(format, args));

     }

 }