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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.jack.ir.ast;
import com.android.jack.Jack;
import com.android.jack.ir.ast.JNode.Transformation;
import com.android.sched.item.Component;
import com.android.sched.scheduler.ScheduleInstance;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;
class AnnotationSet {
@Nonnull
private final Map<JAnnotationType, ArrayList<JAnnotation>> annotations =
new HashMap<JAnnotationType, ArrayList<JAnnotation>>();
AnnotationSet() {
}
void addAnnotation(@Nonnull JAnnotation annotation) throws UnsupportedOperationException {
JAnnotationType type = annotation.getType();
ArrayList<JAnnotation> annotationLiterals = annotations.get(type);
if (annotationLiterals == null) {
annotationLiterals = new ArrayList<JAnnotation>(1);
annotations.put(type, annotationLiterals);
}
annotationLiterals.add(annotation);
}
/**
* @return {@link List} of {@link JAnnotation} contained into this
* {@link AnnotationSet} and having the type {@code annotationType}.
*/
@Nonnull
List<JAnnotation> getAnnotation(@Nonnull JAnnotationType annotationType) {
List<JAnnotation> annotationLiterals = annotations.get(annotationType);
if (annotationLiterals == null) {
return Collections.emptyList();
}
return annotationLiterals;
}
/**
* @return {@link Collection} of {@link JAnnotation} contained into this
* {@link AnnotationSet}.
*/
@Nonnull
Collection<JAnnotation> getAnnotations() {
Collection<JAnnotation> allAnnotations = new ArrayList<JAnnotation>();
for (Collection<JAnnotation> annotationLiterals : annotations.values()) {
allAnnotations.addAll(annotationLiterals);
}
return Jack.getUnmodifiableCollections().getUnmodifiableCollection(allAnnotations);
}
/**
* @return {@link Collection} of {@link JAnnotationType} contained into this
* {@link AnnotationSet}.
*/
@Nonnull
Collection<JAnnotationType> getAnnotationTypes() {
return Jack.getUnmodifiableCollections().getUnmodifiableCollection(annotations.keySet());
}
/**
* @return true if the transformation was applied. False if the transformation could not be
* applied because {@code existingNode} was not present in this {@link AnnotationSet}.
*/
boolean transform(@Nonnull JNode existingNode, @CheckForNull JNode newNode,
@Nonnull Transformation transformation) throws UnsupportedOperationException {
if (existingNode instanceof JAnnotation) {
JAnnotation existingAnnotation = (JAnnotation) existingNode;
List<JAnnotation> annotationLiterals = getAnnotation(existingAnnotation.getType());
switch (transformation) {
case INSERT_AFTER:
case INSERT_BEFORE:
throw new UnsupportedOperationException();
case REPLACE:
assert newNode instanceof JAnnotation;
annotationLiterals.remove(existingAnnotation);
annotationLiterals.add((JAnnotation) newNode);
return true;
case REMOVE:
assert newNode == null;
annotationLiterals.remove(existingAnnotation);
if (annotationLiterals.isEmpty()) {
annotations.remove(existingAnnotation.getType());
}
return true;
}
}
return false;
}
void traverse(@Nonnull JVisitor visitor) {
for (ArrayList<JAnnotation> annotation : annotations.values()) {
visitor.accept(annotation);
}
}
void traverse(@Nonnull ScheduleInstance<? super Component> schedule) throws Exception {
for (List<JAnnotation> annotationLiterals : annotations.values()) {
for (JAnnotation annotation : annotationLiterals) {
annotation.traverse(schedule);
}
}
}
}
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