jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/processing/JavacRoundEnvironment.java@9a66ca7c79fa (annotated)

src/share/classes/com/sun/tools/javac/processing/JavacRoundEnvironment.java@9a66ca7c79fa (annotated)

src/share/classes/com/sun/tools/javac/processing/JavacRoundEnvironment.java

Sat, 01 Dec 2007 00:00:00 +0000

author: duke
date: Sat, 01 Dec 2007 00:00:00 +0000
changeset 1: 9a66ca7c79fa
child 104: 5e89c4ca637c
permissions: -rw-r--r--

Initial load

 /*
  * Copyright 2005-2006 Sun Microsystems, Inc.  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.  Sun designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Sun in the LICENSE file that accompanied this code.
  *
  * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */
 package com.sun.tools.javac.processing;
 import java.lang.annotation.Annotation;
 import com.sun.tools.javac.util.*;
 import com.sun.tools.javac.comp.*;
 import com.sun.tools.javac.tree.JCTree.*;
 import javax.annotation.processing.*;
 import javax.lang.model.element.*;
 import javax.lang.model.type.DeclaredType;
 import javax.lang.model.type.TypeMirror;
 import javax.lang.model.util.*;
 import java.util.*;
 /**
  * Object providing state about a prior round of annotation processing.
  *
  * <p><b>This is NOT part of any API supported by Sun Microsystems.
  * If you write code that depends on this, you do so at your own risk.
  * This code and its internal interfaces are subject to change or
  * deletion without notice.</b>
  */
 public class JavacRoundEnvironment implements RoundEnvironment {
     // Default equals and hashCode methods are okay.
     private final boolean processingOver;
     private final boolean errorRaised;
     private final ProcessingEnvironment processingEnv;
     // Caller must pass in an immutable set
     private final Set<? extends Element> rootElements;
     JavacRoundEnvironment(boolean processingOver,
                           boolean errorRaised,
                           Set<? extends Element> rootElements,
                           ProcessingEnvironment processingEnv) {
         this.processingOver = processingOver;
         this.errorRaised = errorRaised;
         this.rootElements = rootElements;
         this.processingEnv = processingEnv;
     }
     public String toString() {
         return String.format("[errorRaised=%b, rootElements=%s, processingOver=%b]",
                              errorRaised,
                              rootElements,
                              processingOver);
     }
     public boolean processingOver() {
         return processingOver;
     }
     /**
      * Returns {@code true} if an error was raised in the prior round
      * of processing; returns {@code false} otherwise.
      *
      * @return {@code true} if an error was raised in the prior round
      * of processing; returns {@code false} otherwise.
      */
     public boolean errorRaised() {
         return errorRaised;
     }
     /**
      * Returns the type elements specified by the prior round.
      *
      * @return the types elements specified by the prior round, or an
      * empty set if there were none
      */
     public Set<? extends Element> getRootElements() {
         return rootElements;
     }
     private static final String NOT_AN_ANNOTATION_TYPE =
         "The argument does not represent an annotation type: ";
     /**
      * Returns the elements annotated with the given annotation type.
      * Only type elements <i>included</i> in this round of annotation
      * processing, or declarations of members, parameters, or type
      * parameters declared within those, are returned.  Included type
      * elements are {@linkplain #getSpecifiedTypeElements specified
      * types} and any types nested within them.
      *
      * @param a  annotation type being requested
      * @return the elements annotated with the given annotation type,
      * or an empty set if there are none
      */
     public Set<? extends Element> getElementsAnnotatedWith(TypeElement a) {
         Set<Element> result = Collections.emptySet();
         if (a.getKind() != ElementKind.ANNOTATION_TYPE)
             throw new IllegalArgumentException(NOT_AN_ANNOTATION_TYPE + a);
         DeclaredType annotationTypeElement;
         TypeMirror tm = a.asType();
         if ( tm instanceof DeclaredType )
             annotationTypeElement = (DeclaredType) a.asType();
         else
             throw new AssertionError("Bad implementation type for " + tm);
         ElementScanner6<Set<Element>, DeclaredType> scanner =
             new AnnotationSetScanner(result);
         for (Element element : rootElements)
             result = scanner.scan(element, annotationTypeElement);
         return result;
     }
     // Could be written as a local class inside getElementsAnnotatedWith
     private class AnnotationSetScanner extends
         ElementScanner6<Set<Element>, DeclaredType> {
         // Insertion-order preserving set
         Set<Element> annotatedElements = new LinkedHashSet<Element>();
         AnnotationSetScanner(Set<Element> defaultSet) {
             super(defaultSet);
         }
         @Override
         public Set<Element> scan(Element e, DeclaredType p) {
             java.util.List<? extends AnnotationMirror> annotationMirrors =
                 processingEnv.getElementUtils().getAllAnnotationMirrors(e);
             for (AnnotationMirror annotationMirror : annotationMirrors) {
                 if (annotationMirror.getAnnotationType().equals(p))
                     annotatedElements.add(e);
             }
             e.accept(this, p);
             return annotatedElements;
         }
     }
     /**
      * {@inheritdoc}
      */
     public Set<? extends Element> getElementsAnnotatedWith(Class<? extends Annotation> a) {
         if (!a.isAnnotation())
             throw new IllegalArgumentException(NOT_AN_ANNOTATION_TYPE + a);
         String name = a.getCanonicalName();
         if (name == null)
             return Collections.emptySet();
         else {
             TypeElement annotationType = processingEnv.getElementUtils().getTypeElement(name);
             if (annotationType == null)
                 return Collections.emptySet();
             else
                 return getElementsAnnotatedWith(annotationType);
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javac/processing/JavacRoundEnvironment.java@9a66ca7c79fa (annotated)

src/share/classes/com/sun/tools/javac/processing/JavacRoundEnvironment.java