jdk8-mips64-public/langtools: test/tools/javac/processing/model/element/TestResourceElement.java@4baab658f357

6639645: Modeling type implementing missing interfaces
Reviewed-by: darcy, mcimadamore

     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 6967842

    27  * @summary Element not returned from tree API for ARM resource variables.

    28  * @author A. Sundararajan

    29  * @library ../../../lib

    30  * @build   JavacTestingAbstractProcessor TestResourceElement

    31  * @compile -processor TestResourceElement -proc:only TestResourceElement.java

    32  */

    34 import javax.annotation.processing.*;

    35 import javax.lang.model.*;

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

    37 import java.util.*;

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

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

    41 public class TestResourceElement extends JavacTestingAbstractProcessor implements AutoCloseable {

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

    43                           RoundEnvironment roundEnv) {

    44        if (!roundEnv.processingOver()) {

    45            Trees trees = Trees.instance(processingEnv);

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

    48                TreePath treePath = trees.getPath(rootElement);

    50                VariableScanner varScanner =  new VariableScanner(trees);

    51                varScanner.scan(trees.getTree(rootElement),

    52                         treePath.getCompilationUnit());

    53                if (varScanner.getTrvElement() == null) {

    54                    throw new AssertionError("Element is null for 'trv'");

    55                }

    56            }

    57        }

    58        return true;

    59     }

    61     @Override

    62     public void close() {}

    64     private void test1() {

    65         // The resource variable "trv"'s Element is checked.

    66         // Do not change the name of the variable.

    67         try(TestResourceElement trv = this) {}

    68     }

    70     class VariableScanner extends TreeScanner<Void, CompilationUnitTree> {

    71        private Trees trees;

    72        private Element trvElement;

    74        public VariableScanner(Trees trees) {

    75            super();

    76            this.trees = trees;

    77        }

    78        @Override

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

    80            // if this is "trv", get it's element.

    81            if (node.getName().contentEquals("trv")) {

    82                trvElement = trees.getElement(trees.getPath(cu, node));

    83            }

    84            return super.visitVariable(node, cu);

    85        }

    87        Element getTrvElement() {

    88            return trvElement;

    89        }

    90    }

    91 }

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