1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/processing/model/element/TestTypeParameterAnnotations.java Mon Apr 22 10:24:19 2013 +0200
1.3 @@ -0,0 +1,190 @@
1.4 +/*
1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 8011027
1.30 + * @library /tools/javac/lib
1.31 + * @build JavacTestingAbstractProcessor TestTypeParameterAnnotations
1.32 + * @compile -processor TestTypeParameterAnnotations -proc:only TestTypeParameterAnnotations.java
1.33 + */
1.34 +
1.35 +import java.util.*;
1.36 +import java.lang.annotation.*;
1.37 +import javax.annotation.processing.*;
1.38 +import javax.lang.model.element.*;
1.39 +import javax.lang.model.util.*;
1.40 +import javax.tools.*;
1.41 +
1.42 +public class TestTypeParameterAnnotations<@Foo @Bar @Baz T> extends JavacTestingAbstractProcessor {
1.43 + int round = 0;
1.44 +
1.45 + public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
1.46 + if (++round == 1) {
1.47 + int found = (new Scanner()).scan(roundEnv.getRootElements(), null);
1.48 + if (found == expect) {
1.49 + ; //nop
1.50 + } else {
1.51 + error("unexpected number of results: expected " + expect
1.52 + + ", found " + found);
1.53 + }
1.54 +
1.55 + }
1.56 + return true;
1.57 + }
1.58 +
1.59 + class Scanner extends JavacTestingAbstractProcessor.ElementScanner<Integer,Void> {
1.60 + @Override
1.61 + public Integer visitExecutable(ExecutableElement e, Void p) {
1.62 + super.visitExecutable(e, p);
1.63 + found += check(e, e.getTypeParameters());
1.64 + return found;
1.65 + }
1.66 +
1.67 + @Override
1.68 + public Integer visitType(TypeElement e, Void p) {
1.69 + super.visitType(e, p);
1.70 + found += check(e, e.getTypeParameters());
1.71 + return found;
1.72 + }
1.73 +
1.74 + int found;
1.75 + }
1.76 +
1.77 + int check(Element e, List<? extends TypeParameterElement> typarams) {
1.78 + if (typarams.isEmpty())
1.79 + return 0;
1.80 + if (typarams.size() != 1)
1.81 + return 0;
1.82 +
1.83 + for (TypeParameterElement tpe: typarams) {
1.84 + boolean b1 = checkAnnotationMirrors(tpe, tpe.getAnnotationMirrors());
1.85 + boolean b2 = checkAnnotationMirrors(tpe, elements.getAllAnnotationMirrors(tpe));
1.86 + boolean b3 = checkGetAnnotation(tpe);
1.87 + boolean b4 = checkGetAnnotations(tpe);
1.88 + return b1 && b2 && b3 && b4 ? 1 : 0;
1.89 + }
1.90 + return 0;
1.91 + }
1.92 +
1.93 + boolean checkAnnotationMirrors(TypeParameterElement tpe, List<? extends AnnotationMirror> l) {
1.94 + if (l.size() != 3) {
1.95 + error("To few annotations, got " + l.size() +
1.96 + ", should be 3", tpe);
1.97 + return false;
1.98 + }
1.99 +
1.100 + AnnotationMirror m = l.get(0);
1.101 + if (!m.getAnnotationType().asElement().equals(elements.getTypeElement("Foo"))) {
1.102 + error("Wrong type of annotation, was expecting @Foo", m.getAnnotationType().asElement());
1.103 + return false;
1.104 + }
1.105 + m = l.get(1);
1.106 + if (!m.getAnnotationType().asElement().equals(elements.getTypeElement("Bar"))) {
1.107 + error("Wrong type of annotation, was expecting @Bar", m.getAnnotationType().asElement());
1.108 + return false;
1.109 + }
1.110 + m = l.get(2);
1.111 + if (!m.getAnnotationType().asElement().equals(elements.getTypeElement("Baz"))) {
1.112 + error("Wrong type of annotation, was expecting @Baz", m.getAnnotationType().asElement());
1.113 + return false;
1.114 + }
1.115 + return true;
1.116 + }
1.117 +
1.118 + boolean checkGetAnnotation(TypeParameterElement tpe) {
1.119 + Foo f = tpe.getAnnotation(Foo.class);
1.120 + if (f == null)
1.121 + error("Expecting @Foo to be present in getAnnotation()", tpe);
1.122 +
1.123 + Bar b = tpe.getAnnotation(Bar.class);
1.124 + if (b == null)
1.125 + error("Expecting @Bar to be present in getAnnotation()", tpe);
1.126 +
1.127 + Baz z = tpe.getAnnotation(Baz.class);
1.128 + if (z == null)
1.129 + error("Expecting @Baz to be present in getAnnotation()", tpe);
1.130 +
1.131 + return f != null &&
1.132 + b != null &&
1.133 + z != null;
1.134 + }
1.135 +
1.136 + boolean checkGetAnnotations(TypeParameterElement tpe) {
1.137 + Foo[] f = tpe.getAnnotationsByType(Foo.class);
1.138 + if (f.length != 1) {
1.139 + error("Expecting 1 @Foo to be present in getAnnotationsByType()", tpe);
1.140 + return false;
1.141 + }
1.142 +
1.143 + Bar[] b = tpe.getAnnotationsByType(Bar.class);
1.144 + if (b.length != 1) {
1.145 + error("Expecting 1 @Bar to be present in getAnnotationsByType()", tpe);
1.146 + return false;
1.147 + }
1.148 +
1.149 + Baz[] z = tpe.getAnnotationsByType(Baz.class);
1.150 + if (z.length != 1) {
1.151 + error("Expecting 1 @Baz to be present in getAnnotationsByType()", tpe);
1.152 + return false;
1.153 + }
1.154 +
1.155 + return true;
1.156 + }
1.157 +
1.158 + void note(String msg) {
1.159 + messager.printMessage(Diagnostic.Kind.NOTE, msg);
1.160 + }
1.161 +
1.162 + void note(String msg, Element e) {
1.163 + messager.printMessage(Diagnostic.Kind.NOTE, msg, e);
1.164 + }
1.165 +
1.166 + void error(String msg, Element e) {
1.167 + messager.printMessage(Diagnostic.Kind.ERROR, msg, e);
1.168 + }
1.169 +
1.170 + void error(String msg) {
1.171 + messager.printMessage(Diagnostic.Kind.ERROR, msg);
1.172 + }
1.173 +
1.174 + // additional generic elements to test
1.175 + <@Foo @Bar @Baz X> X m(X x) { return x; }
1.176 +
1.177 + interface Intf<@Foo @Bar @Baz X> { X m() ; }
1.178 +
1.179 + class Class<@Foo @Bar @Baz X> {
1.180 + <@Foo @Bar @Baz Y> Class() { }
1.181 + }
1.182 +
1.183 + final int expect = 5; // top level class, plus preceding examples
1.184 +}
1.185 +
1.186 +@Target(ElementType.TYPE_PARAMETER)
1.187 +@interface Foo {}
1.188 +
1.189 +@Target(ElementType.TYPE_PARAMETER)
1.190 +@interface Bar {}
1.191 +
1.192 +@Target(ElementType.TYPE_PARAMETER)
1.193 +@interface Baz {}
