| /* |
| * 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. |
| */ |
| package org.graalvm.compiler.replacements.verifier; |
| |
| import java.lang.annotation.Annotation; |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.annotation.processing.AbstractProcessor; |
| import javax.annotation.processing.ProcessingEnvironment; |
| import javax.annotation.processing.RoundEnvironment; |
| import javax.lang.model.SourceVersion; |
| import javax.lang.model.element.AnnotationMirror; |
| import javax.lang.model.element.Element; |
| import javax.lang.model.element.TypeElement; |
| import javax.lang.model.type.DeclaredType; |
| |
| public class VerifierAnnotationProcessor extends AbstractProcessor { |
| |
| private List<AbstractVerifier> verifiers; |
| |
| @Override |
| public SourceVersion getSupportedSourceVersion() { |
| return SourceVersion.latest(); |
| } |
| |
| @Override |
| public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
| if (!roundEnv.processingOver()) { |
| PluginGenerator generator = new PluginGenerator(); |
| for (AbstractVerifier verifier : getVerifiers()) { |
| Class<? extends Annotation> annotationClass = verifier.getAnnotationClass(); |
| for (Element e : roundEnv.getElementsAnnotatedWith(annotationClass)) { |
| AnnotationMirror annotationMirror = findAnnotationMirror(processingEnv, e.getAnnotationMirrors(), annotationClass); |
| if (annotationMirror == null) { |
| assert false : "Annotation mirror always expected."; |
| continue; |
| } |
| verifier.verify(e, annotationMirror, generator); |
| } |
| } |
| |
| generator.generateAll(processingEnv); |
| } |
| return false; |
| } |
| |
| public static AnnotationMirror findAnnotationMirror(ProcessingEnvironment processingEnv, List<? extends AnnotationMirror> mirrors, Class<?> annotationClass) { |
| TypeElement expectedAnnotationType = processingEnv.getElementUtils().getTypeElement(annotationClass.getCanonicalName()); |
| for (AnnotationMirror mirror : mirrors) { |
| DeclaredType annotationType = mirror.getAnnotationType(); |
| TypeElement actualAnnotationType = (TypeElement) annotationType.asElement(); |
| if (actualAnnotationType.equals(expectedAnnotationType)) { |
| return mirror; |
| } |
| } |
| return null; |
| } |
| |
| public List<AbstractVerifier> getVerifiers() { |
| /* |
| * Initialized lazily to fail(CNE) when the processor is invoked and not when it is created. |
| */ |
| if (verifiers == null) { |
| assert this.processingEnv != null : "ProcessingEnv must be initialized before calling getVerifiers."; |
| verifiers = new ArrayList<>(); |
| verifiers.add(new ClassSubstitutionVerifier(this.processingEnv)); |
| verifiers.add(new MethodSubstitutionVerifier(this.processingEnv)); |
| verifiers.add(new NodeIntrinsicVerifier(this.processingEnv)); |
| verifiers.add(new FoldVerifier(this.processingEnv)); |
| } |
| return verifiers; |
| } |
| |
| @Override |
| public Set<String> getSupportedAnnotationTypes() { |
| Set<String> annotationTypes = new HashSet<>(); |
| for (AbstractVerifier verifier : getVerifiers()) { |
| annotationTypes.add(verifier.getAnnotationClass().getCanonicalName()); |
| } |
| return annotationTypes; |
| } |
| |
| } |