jdk8-mips64-public/langtools: test/tools/javac/processing/model/element/TestResourceVariable.java@b52a38d4536c (annotated)

test/tools/javac/processing/model/element/TestResourceVariable.java@b52a38d4536c (annotated)

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

Fri, 21 Dec 2012 08:45:43 -0800

author: darcy
date: Fri, 21 Dec 2012 08:45:43 -0800
changeset 1466: b52a38d4536c
parent 1054: 111bbf1ad913
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

8005282: Use @library tag with non-relative path for javac tests
Reviewed-by: jjg

 /*
  * Copyright (c) 2010, 2011, 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  6911256 6964740 6967842 6961571 7025809
  * @summary Test that the resource variable kind is appropriately set
  * @author  Joseph D. Darcy
  * @library /tools/javac/lib
  * @build   JavacTestingAbstractProcessor TestResourceVariable
  * @compile -processor TestResourceVariable -proc:only TestResourceVariable.java
  */
 import java.io.*;
 import javax.annotation.processing.*;
 import javax.lang.model.*;
 import javax.lang.model.element.*;
 import javax.lang.model.type.*;
 import javax.lang.model.util.*;
 import java.util.*;
 import com.sun.source.tree.*;
 import com.sun.source.util.*;
 import static javax.tools.Diagnostic.Kind.*;
 /**
  * Using the tree API, retrieve element representations of the
  * resource of a try-with-resources statement and verify their kind
  * tags are set appropriately.
  */
 public class TestResourceVariable extends JavacTestingAbstractProcessor implements AutoCloseable {
     int resourceVariableCount = 0;
     public boolean process(Set<? extends TypeElement> annotations,
                           RoundEnvironment roundEnv) {
        if (!roundEnv.processingOver()) {
            Trees trees = Trees.instance(processingEnv);
            for(Element rootElement : roundEnv.getRootElements()) {
                TreePath treePath = trees.getPath(rootElement);
                (new ResourceVariableScanner(trees)).
                    scan(trees.getTree(rootElement),
                         treePath.getCompilationUnit());
            }
            if (resourceVariableCount != 3)
                throw new RuntimeException("Bad resource variable count " +
                                           resourceVariableCount);
        }
        return true;
     }
     @Override
     public void close() {}
     private void test1() {
         try(TestResourceVariable trv = this) {}
     }
     private void test2() {
         try(TestResourceVariable trv1 = this; TestResourceVariable trv2 = trv1) {}
     }
     /**
      * Verify that a resource variable modeled as an element behaves
      * as expected under 6 and latest specific visitors.
      */
     private static void testResourceVariable(Element element) {
         ElementVisitor visitor6 = new ElementKindVisitor6<Void, Void>() {};
         try {
             visitor6.visit(element);
             throw new RuntimeException("Expected UnknownElementException not thrown.");
         } catch (UnknownElementException uee) {
             ; // Expected.
         }
         ElementKindVisitor visitorLatest =
             new ElementKindVisitor<Object, Void>() {
             @Override
             public Object visitVariableAsResourceVariable(VariableElement e,
                                                           Void p) {
                 return e; // a non-null value
             }
         };
         if (visitorLatest.visit(element) == null) {
             throw new RuntimeException("Null result of resource variable visitation.");
         }
     }
     class ResourceVariableScanner extends TreeScanner<Void, CompilationUnitTree> {
        private Trees trees;
        public ResourceVariableScanner(Trees trees) {
            super();
            this.trees = trees;
        }
        @Override
        public Void visitVariable(VariableTree node, CompilationUnitTree cu) {
            Element element = trees.getElement(trees.getPath(cu, node));
            System.out.println("Name: " + element.getSimpleName() +
                               "\tKind: " + element.getKind());
            if (element.getKind() == ElementKind.RESOURCE_VARIABLE) {
                testResourceVariable(element);
                resourceVariableCount++;
            }
            return super.visitVariable(node, cu);
        }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/processing/model/element/TestResourceVariable.java@b52a38d4536c (annotated)

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