langtools/test/tools/javac/processing/model/type/InheritedAP.java
author darcy
Thu, 17 Jul 2014 09:47:25 -0700
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8050430: Provided new utility visitors supporting SourceVersion.RELEASE_9 Reviewed-by: jjg
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/*
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 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 8024513
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 * @library /tools/javac/lib
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 * @build JavacTestingAbstractProcessor InheritedAP
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 * @compile -cp . -processor InheritedAP -proc:only InheritedAP.java
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 * @summary NPE in annotation processing
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 */
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import java.util.*;
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import javax.annotation.processing.*;
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import javax.lang.model.element.*;
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import javax.lang.model.type.*;
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import javax.lang.model.util.*;
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import java.lang.annotation.*;
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import static javax.lang.model.type.TypeKind.*;
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import static javax.lang.model.SourceVersion.*;
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import static javax.lang.model.util.ElementFilter.*;
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@SupportedAnnotationTypes("testclass")
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public class InheritedAP extends JavacTestingAbstractProcessor {
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    static Types types;
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    public void init(ProcessingEnvironment penv) {super.init(penv);}
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    public static Types getTypes() { return types; }
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    public boolean process(Set<? extends TypeElement> typeElementSet,RoundEnvironment renv) {
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        if ( renv.errorRaised()) { System.out.println("Error!"); return false; }
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        if ( typeElementSet.size() <=0 && typesIn(renv.getRootElements()).size() <= 0 ) {
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            return true;
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        }
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        types=processingEnv.getTypeUtils();
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        for (TypeElement typeElem: typesIn(renv.getRootElements())) {
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            if (typeElem.getAnnotation(testclass.class) != null) {
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                new LocalElementScanner( new SimpleTypeMirrorVisitor()).scan(typeElem, null);
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            }
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        }
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        return true ;
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    }
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}
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class SimpleTypeMirrorVisitor extends JavacTestingAbstractProcessor.SimpleTypeVisitor<Void, Void> {
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    protected Void defaultAction(TypeMirror mirror, Void p ) {
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        try {
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            System.out.println( "InheritedAP.getTypes().directSupertypes( "+mirror.toString()+" );" );
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            InheritedAP.getTypes().directSupertypes(mirror);
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            System.out.println("PASS");
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        }catch(java.lang.IllegalArgumentException iae) {/*stuff*/ }
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        return p;
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    }
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}
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class LocalElementScanner <T extends JavacTestingAbstractProcessor.SimpleTypeVisitor<Void, Void> >
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                    extends JavacTestingAbstractProcessor.ElementScanner<Void, Void> {
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    JavacTestingAbstractProcessor.SimpleTypeVisitor<Void, Void> typeVisitor;
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    public LocalElementScanner(T typeVisitor) { this.typeVisitor=typeVisitor;}
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    @Override
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    public Void scan(Element e, Void p) {
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         if (e instanceof TypeElement ) {
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            TypeElement te = (TypeElement) e;
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            te.getSuperclass().accept(typeVisitor,p);
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        }
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        return p;
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    }
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}
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@interface testclass { }
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@testclass
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@interface iface { }