jdk8-mips64-public/langtools: test/tools/javac/processing/model/element/TestTypeParameterAnnotations.java@a3ad6e2ede44 (annotated)

test/tools/javac/processing/model/element/TestTypeParameterAnnotations.java@a3ad6e2ede44 (annotated)

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

Wed, 18 Jun 2014 10:44:16 +0200

author: jlahoda
date: Wed, 18 Jun 2014 10:44:16 +0200
changeset 2427: a3ad6e2ede44
parent 1709: bae8387d16aa
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

8046916: Type parameter annotations don't work with multiple type parameters
Summary: When reading type variable's annotations out of the owner's type annotations, use the type variable's index in owner to exclude annotations belonging to other type variables.
Reviewed-by: jfranck, emc

 /*
  * Copyright (c) 2013, 2014, 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 8011027 8046916
  * @library /tools/javac/lib
  * @build JavacTestingAbstractProcessor TestTypeParameterAnnotations
  * @compile -processor TestTypeParameterAnnotations -proc:only TestTypeParameterAnnotations.java
  */
 import java.util.*;
 import java.lang.annotation.*;
 import javax.annotation.processing.*;
 import javax.lang.model.element.*;
 import javax.tools.*;
 @ExpectedTypeParameterAnnotations(typeParameterName="T1",
                                   annotations={"Foo1", "Bar1", "Baz1"})
 @ExpectedTypeParameterAnnotations(typeParameterName="T2", annotations={})
 @ExpectedTypeParameterAnnotations(typeParameterName="T3",
                                   annotations={"Foo2", "Bar2", "Baz2"})
 @ExpectedTypeParameterAnnotations(typeParameterName="T4", annotations={})
 public class TestTypeParameterAnnotations<@Foo1 @Bar1 @Baz1 T1, T2, @Foo2 @Bar2 @Baz2 T3, T4> extends
         JavacTestingAbstractProcessor {
     int round = 0;
     public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
         if (++round == 1) {
             int found = (new Scanner()).scan(roundEnv.getRootElements(), null);
             if (found == expect) {
                 ; //nop
             } else {
                 error("unexpected number of results: expected " + expect
                         + ", found " + found);
             }
         }
         return true;
     }
     class Scanner extends JavacTestingAbstractProcessor.ElementScanner<Integer,Void> {
         @Override
         public Integer visitExecutable(ExecutableElement e, Void p) {
             super.visitExecutable(e, p);
             found += check(e, e.getTypeParameters());
             return found;
         }
         @Override
         public Integer visitType(TypeElement e, Void p) {
             super.visitType(e, p);
             found += check(e, e.getTypeParameters());
             return found;
         }
         int found;
     }
     int check(Element e, List<? extends TypeParameterElement> typarams) {
         if (typarams.isEmpty())
             return 0;
         for (TypeParameterElement tpe : typarams) {
             ExpectedTypeParameterAnnotations expected = null;
             for (ExpectedTypeParameterAnnotations a : e.getAnnotationsByType(ExpectedTypeParameterAnnotations.class)) {
                 if (tpe.getSimpleName().contentEquals(a.typeParameterName())) {
                     expected = a;
                     break;
                 }
             }
             if (expected == null) {
                 throw new IllegalStateException("Does not have expected values annotation.");
             }
             checkAnnotationMirrors(tpe, tpe.getAnnotationMirrors(), expected);
             checkAnnotationMirrors(tpe, elements.getAllAnnotationMirrors(tpe), expected);
             checkGetAnnotation(tpe, expected);
             checkGetAnnotations(tpe, expected);
         }
         return typarams.size();
     }
     void checkAnnotationMirrors(TypeParameterElement tpe, List<? extends AnnotationMirror> l, ExpectedTypeParameterAnnotations expected) {
         String[] expectedAnnotations = expected.annotations();
         if (l.size() != expectedAnnotations.length) {
             error("Incorrect number of annotations, got " + l.size() +
                     ", should be " + expectedAnnotations.length, tpe);
             return ;
         }
         for (int i = 0; i < expectedAnnotations.length; i++) {
             AnnotationMirror m = l.get(i);
             if (!m.getAnnotationType().asElement().equals(elements.getTypeElement(expectedAnnotations[i]))) {
                 error("Wrong type of annotation, was expecting @Foo", m.getAnnotationType().asElement());
                 return ;
             }
         }
     }
     void checkGetAnnotation(TypeParameterElement tpe, ExpectedTypeParameterAnnotations expected) {
         List<String> expectedAnnotations = Arrays.asList(expected.annotations());
         for (Class<? extends Annotation> c : ALL_ANNOTATIONS) {
             Object a = tpe.getAnnotation(c);
             if (a != null ^ expectedAnnotations.indexOf(c.getName()) != (-1)) {
                 error("Unexpected behavior for " + c.getName(), tpe);
                 return ;
             }
         }
     }
     void checkGetAnnotations(TypeParameterElement tpe, ExpectedTypeParameterAnnotations expected) {
         List<String> expectedAnnotations = Arrays.asList(expected.annotations());
         for (Class<? extends Annotation> c : ALL_ANNOTATIONS) {
             Object[] a = tpe.getAnnotationsByType(c);
             if (a.length > 0 ^ expectedAnnotations.indexOf(c.getName()) != (-1)) {
                 error("Unexpected behavior for " + c.getName(), tpe);
                 return ;
             }
         }
     }
     void note(String msg) {
         messager.printMessage(Diagnostic.Kind.NOTE, msg);
     }
     void note(String msg, Element e) {
         messager.printMessage(Diagnostic.Kind.NOTE, msg, e);
     }
     void error(String msg, Element e) {
         messager.printMessage(Diagnostic.Kind.ERROR, msg, e);
     }
     void error(String msg) {
         messager.printMessage(Diagnostic.Kind.ERROR, msg);
     }
     Class<? extends Annotation>[] ALL_ANNOTATIONS = new Class[] {
         Foo1.class, Bar1.class, Baz1.class,
         Foo2.class, Bar2.class, Baz2.class,
     };
     // additional generic elements to test
     @ExpectedTypeParameterAnnotations(typeParameterName="W",
                                       annotations={"Foo1", "Bar1", "Baz1"})
     @ExpectedTypeParameterAnnotations(typeParameterName="X", annotations={})
     @ExpectedTypeParameterAnnotations(typeParameterName="Y",
                                       annotations={"Foo2", "Bar2", "Baz2"})
     @ExpectedTypeParameterAnnotations(typeParameterName="Z", annotations={})
     <@Foo1 @Bar1 @Baz1 W, X, @Foo2 @Bar2 @Baz2 Y, Z> X m(X x) { return x; }
     @ExpectedTypeParameterAnnotations(typeParameterName="W",
                                       annotations={"Foo1", "Bar1", "Baz1"})
     @ExpectedTypeParameterAnnotations(typeParameterName="X", annotations={})
     @ExpectedTypeParameterAnnotations(typeParameterName="Y",
                                       annotations={"Foo2", "Bar2", "Baz2"})
     @ExpectedTypeParameterAnnotations(typeParameterName="Z", annotations={})
     interface Intf<@Foo1 @Bar1 @Baz1 W, X, @Foo2 @Bar2 @Baz2 Y, Z> { X m() ; }
     @ExpectedTypeParameterAnnotations(typeParameterName="W",
                                       annotations={"Foo1", "Bar1", "Baz1"})
     @ExpectedTypeParameterAnnotations(typeParameterName="X", annotations={})
     @ExpectedTypeParameterAnnotations(typeParameterName="Y",
                                       annotations={"Foo2", "Bar2", "Baz2"})
     @ExpectedTypeParameterAnnotations(typeParameterName="Z", annotations={})
     class Clazz<@Foo1 @Bar1 @Baz1 W, X, @Foo2 @Bar2 @Baz2 Y, Z> {
         @ExpectedTypeParameterAnnotations(typeParameterName="W",
                                           annotations={"Foo1", "Bar1", "Baz1"})
         @ExpectedTypeParameterAnnotations(typeParameterName="X", annotations={})
         @ExpectedTypeParameterAnnotations(typeParameterName="Y",
                                           annotations={"Foo2", "Bar2", "Baz2"})
         @ExpectedTypeParameterAnnotations(typeParameterName="Z", annotations={})
         <@Foo1 @Bar1 @Baz1 W, X, @Foo2 @Bar2 @Baz2 Y, Z> Clazz() { }
     }
     final int expect = 5 * 4;  // top level class, plus preceding examples, 4 type variables each
 }
 @Target(ElementType.TYPE_PARAMETER)
 @interface Foo1 {}
 @Target(ElementType.TYPE_PARAMETER)
 @interface Bar1 {}
 @Target(ElementType.TYPE_PARAMETER)
 @interface Baz1 {}
 @Target(ElementType.TYPE_PARAMETER)
 @interface Foo2 {}
 @Target(ElementType.TYPE_PARAMETER)
 @interface Bar2 {}
 @Target(ElementType.TYPE_PARAMETER)
 @interface Baz2 {}
 @Repeatable(ExpectedTypeParameterAnnotationsCollection.class)
 @interface ExpectedTypeParameterAnnotations {
     public String typeParameterName();
     public String[] annotations();
 }
 @interface ExpectedTypeParameterAnnotationsCollection {
     public ExpectedTypeParameterAnnotations[] value();
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/processing/model/element/TestTypeParameterAnnotations.java@a3ad6e2ede44 (annotated)

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