jdk8-mips64-public/langtools: test/tools/javac/processing/model/element/TestResourceVariable.java@13354e1abba7

6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
6964740: Project Coin: More tests for ARM compiler changes
6965277: Project Coin: Correctness issues in ARM implementation
6967065: add -Xlint warning category for Automatic Resource Management (ARM)
Reviewed-by: jjb, darcy, mcimadamore, jjg, briangoetz
Contributed-by: tball@google.com

     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  */

    24 /*

    25  * @test

    26  * @bug  6911256 6964740

    27  * @summary Test that the resource variable kind is appropriately set

    28  * @author  Joseph D. Darcy

    29  * @build TestResourceVariable

    30  * @compile/fail -processor TestResourceVariable -proc:only TestResourceVariable.java

    31  */

    33 // Bug should be filed for this misbehavior

    35 import java.io.*;

    36 import javax.annotation.processing.*;

    37 import javax.lang.model.*;

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

    39 import javax.lang.model.type.*;

    40 import javax.lang.model.util.*;

    41 import java.util.*;

    42 import com.sun.source.tree.*;

    43 import com.sun.source.util.*;

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

    46 /**

    47  * Using the tree API, retrieve element representations of the

    48  * resource of an ARM block and verify their kind tags are set

    49  * appropriately.

    50  */

    51 @SupportedAnnotationTypes("*")

    52 public class TestResourceVariable extends AbstractProcessor implements AutoCloseable {

    53     int resourceVariableCount = 0;

    55     public boolean process(Set<? extends TypeElement> annotations,

    56                           RoundEnvironment roundEnv) {

    57        if (!roundEnv.processingOver()) {

    58            Trees trees = Trees.instance(processingEnv);

    60            for(Element rootElement : roundEnv.getRootElements()) {

    61                TreePath treePath = trees.getPath(rootElement);

    63                (new ResourceVariableScanner(trees)).

    64                    scan(trees.getTree(rootElement),

    65                         treePath.getCompilationUnit());

    66            }

    67            if (resourceVariableCount != 3)

    68                throw new RuntimeException("Bad resource variable count " +

    69                                           resourceVariableCount);

    70        }

    71        return true;

    72     }

    74     @Override

    75     public void close() {}

    77     private void test1() {

    78         try(TestResourceVariable trv = this) {}

    79     }

    81     private void test2() {

    82         try(TestResourceVariable trv1 = this; TestResourceVariable trv2 = trv1) {}

    83     }

    85     class ResourceVariableScanner extends TreeScanner<Void, CompilationUnitTree> {

    86        private Trees trees;

    88        public ResourceVariableScanner(Trees trees) {

    89            super();

    90            this.trees = trees;

    91        }

    92        @Override

    93        public Void visitVariable(VariableTree node, CompilationUnitTree cu) {

    94            Element element = trees.getElement(trees.getPath(cu, node));

    95            if (element == null) {

    96                System.out.println("Null variable element: " + node);

    97            } else {

    98                System.out.println("Name: " + element.getSimpleName() +

    99                                   "\tKind: " + element.getKind());

   100            }

   101            if (element != null &&

   102                element.getKind() == ElementKind.RESOURCE_VARIABLE) {

   103                resourceVariableCount++;

   104            }

   105            return super.visitVariable(node, cu);

   106        }

   107    }

   109    @Override

   110    public SourceVersion getSupportedSourceVersion() {

   111        return SourceVersion.latest();

   112    }

   113 }

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

test/tools/javac/processing/model/element/TestResourceVariable.java@13354e1abba7

test/tools/javac/processing/model/element/TestResourceVariable.java