| /* |
| * Copyright (c) 2013, 2015, 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. |
| */ |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.lang.annotation.*; |
| import java.util.Set; |
| import javax.annotation.processing.*; |
| import javax.lang.model.element.*; |
| import javax.lang.model.util.ElementFilter; |
| import javax.tools.*; |
| import com.sun.tools.javac.util.Assert; |
| |
| public class Processor extends JavacTestingAbstractProcessor { |
| private boolean seenGenerated; |
| |
| @Override |
| public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
| for (Element e : roundEnv.getElementsAnnotatedWith(Gen.class)) { |
| Gen gen = e.getAnnotation(Gen.class); |
| try { |
| JavaFileObject source = processingEnv.getFiler().createSourceFile(gen.fileName()); |
| |
| try (Writer out = source.openWriter()) { |
| out.write(gen.content()); |
| } |
| } catch (IOException ex) { |
| throw new IllegalStateException(ex); |
| } |
| } |
| |
| TypeElement generated = processingEnv.getElementUtils().getTypeElement("Generated"); |
| |
| if (generated != null) { |
| Check check = ElementFilter.methodsIn(generated.getEnclosedElements()).get(0).getAnnotation(Check.class); |
| |
| checkCorrectException(check::classValue, "java.lang.Class<java.lang.String>"); |
| checkCorrectException(check::intConstValue, "boolean"); |
| checkCorrectException(check::enumValue, "java.lang.String"); |
| checkCorrectException(check::incorrectAnnotationValue, "java.lang.Deprecated"); |
| checkCorrectException(check::incorrectArrayValue, "<any>"); |
| checkCorrectException(check::incorrectClassValue, "<any>"); |
| |
| seenGenerated = true; |
| } |
| |
| if (roundEnv.processingOver() && !seenGenerated) { |
| Assert.error("Did not see the generated class!"); |
| } |
| |
| return true; |
| } |
| |
| private static void checkCorrectException(Runnable runCheck, String expectedType) { |
| try { |
| runCheck.run(); |
| Assert.check(false); //Should not reach here |
| } catch (AnnotationTypeMismatchException ex) { |
| Assert.check(expectedType.equals(ex.foundType()), ex.foundType()); |
| } |
| } |
| |
| } |
| |
| @interface Gen { |
| String fileName(); |
| String content(); |
| } |
| |
| @interface Check { |
| Class<? extends Number> classValue(); |
| int intConstValue(); |
| E enumValue(); |
| int incorrectAnnotationValue(); |
| int incorrectArrayValue(); |
| Class<?> incorrectClassValue(); |
| } |
| |
| enum E { |
| A; |
| } |