1 /*

     2  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 6988836

    27  * @summary A new JavacElements is created for each round of annotation processing

    28  * @library ../../../lib

    29  * @build JavacTestingAbstractProcessor TestContext

    30  * @compile/process -processor TestContext -XprintRounds TestContext

    31  */

    32 

    33 import java.io.*;

    34 import java.util.*;

    35 import javax.annotation.processing.*;

    36 import javax.lang.model.element.*;

    37 import javax.tools.*;

    38 import static javax.tools.Diagnostic.Kind.*;

    39 

    40 import com.sun.source.util.Trees;

    41 import com.sun.tools.javac.api.JavacTrees;

    42 import com.sun.tools.javac.model.JavacElements;

    43 import com.sun.tools.javac.model.JavacTypes;

    44 import com.sun.tools.javac.processing.JavacProcessingEnvironment;

    45 import com.sun.tools.javac.util.Context;

    46 

    47 public class TestContext extends JavacTestingAbstractProcessor {

    48 

    49     Trees treeUtils;

    50     int round = 0;

    51 

    52     @Override

    53     public void init(ProcessingEnvironment pEnv) {

    54         super.init(pEnv);

    55         treeUtils = Trees.instance(processingEnv);

    56     }

    57 

    58     @Override

    59     public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

    60         round++;

    61 

    62         JavacProcessingEnvironment jpe = (JavacProcessingEnvironment) processingEnv;

    63         Context c = jpe.getContext();

    64         check(c.get(JavacElements.class), eltUtils);

    65         check(c.get(JavacTypes.class), typeUtils);

    66         check(c.get(JavacTrees.class), treeUtils);

    67 

    68         final int MAXROUNDS = 3;

    69         if (round < MAXROUNDS)

    70             generateSource("Gen" + round);

    71 

    72         return true;

    73     }

    74 

    75     <T> void check(T actual, T expected) {

    76 //        messager.printMessage(NOTE, "expect: " + expected);

    77 //        messager.printMessage(NOTE, "actual: " + actual);

    78 

    79         if (actual != expected) {

    80             messager.printMessage(ERROR,

    81                 "round " + round + " unexpected value for " + expected.getClass().getName() + ": " + actual);

    82         }

    83     }

    84 

    85     void generateSource(String name) {

    86         String text = "class " + name + " { }\n";

    87 

    88         try (Writer out = filer.createSourceFile(name).openWriter()) {

    89                 out.write(text);

    90         } catch (IOException e) {

    91             throw new Error(e);

    92         }

    93     }

    94 

    95 }

    96