Wed, 27 Apr 2016 01:34:52 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17
1 /*
2 * Copyright (c) 2009, 2013, 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 */
23 import java.util.HashSet;
24 import java.util.Set;
26 import javax.annotation.processing.*;
27 import javax.lang.model.SourceVersion;
28 import javax.lang.model.element.*;
29 import javax.lang.model.util.ElementFilter;
31 import com.sun.source.util.JavacTask;
32 import com.sun.source.util.TaskEvent;
33 import com.sun.source.util.TaskListener;
34 import com.sun.tools.javac.main.JavaCompiler;
35 import com.sun.tools.javac.processing.JavacProcessingEnvironment;
36 import com.sun.tools.javac.util.Context;
38 import static com.sun.tools.javac.comp.CompileStates.CompileState;
40 /*
41 * @test
42 * @summary test that package annotations are available to type processors.
43 * This class implements the functionality of a type processor, as previously
44 * embodied by the AbstractTypeProcessor class.
45 *
46 * @author Mahmood Ali
47 * @author Werner Dietl
48 *
49 * @compile PackageProcessor.java
50 * @compile -cp . -processor PackageProcessor mypackage/Anno.java mypackage/MyClass.java mypackage/package-info.java
51 */
53 @SupportedAnnotationTypes("*")
54 public class PackageProcessor extends AbstractProcessor {
56 private final AttributionTaskListener listener = new AttributionTaskListener();
57 private final Set<Name> elements = new HashSet<Name>();
59 @Override
60 public final void init(ProcessingEnvironment env) {
61 super.init(env);
62 JavacTask.instance(env).addTaskListener(listener);
63 Context ctx = ((JavacProcessingEnvironment)processingEnv).getContext();
64 JavaCompiler compiler = JavaCompiler.instance(ctx);
65 compiler.shouldStopPolicyIfNoError = CompileState.max(compiler.shouldStopPolicyIfNoError,
66 CompileState.FLOW);
67 }
69 @Override
70 public final boolean process(Set<? extends TypeElement> annotations,
71 RoundEnvironment roundEnv) {
72 for (TypeElement elem : ElementFilter.typesIn(roundEnv.getRootElements())) {
73 elements.add(elem.getQualifiedName());
74 }
75 return false;
76 }
78 @Override
79 public SourceVersion getSupportedSourceVersion() {
80 return SourceVersion.latest();
81 }
83 private final class AttributionTaskListener implements TaskListener {
84 @Override
85 public void started(TaskEvent e) { }
87 @Override
88 public void finished(TaskEvent e) {
89 if (e.getKind() != TaskEvent.Kind.ANALYZE)
90 return;
92 if (!elements.remove(e.getTypeElement().getQualifiedName()))
93 return;
95 if (e.getTypeElement().getSimpleName().contentEquals("MyClass")) {
96 Element owner = e.getTypeElement().getEnclosingElement();
97 if (owner.getKind() != ElementKind.PACKAGE)
98 throw new RuntimeException("class owner should be a package: " + owner);
99 if (owner.getAnnotationMirrors().size() != 1)
100 throw new RuntimeException("the owner package should have one annotation: " + owner);
101 }
102 }
103 }
105 }