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/*
* Copyright (C) 2008 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.dx.dex.file;
import com.android.dx.util.AnnotatedOutput;
import com.android.dx.util.Hex;
/**
* Indirect reference to an {@link AnnotationSetItem}.
*/
public final class AnnotationSetRefItem extends OffsettedItem {
/** the required alignment for instances of this class */
private static final int ALIGNMENT = 4;
/** write size of this class, in bytes */
private static final int WRITE_SIZE = 4;
/** {@code non-null;} the annotation set to refer to */
private AnnotationSetItem annotations;
/**
* Constructs an instance.
*
* @param annotations {@code non-null;} the annotation set to refer to
*/
public AnnotationSetRefItem(AnnotationSetItem annotations) {
super(ALIGNMENT, WRITE_SIZE);
if (annotations == null) {
throw new NullPointerException("annotations == null");
}
this.annotations = annotations;
}
/** {@inheritDoc} */
@Override
public ItemType itemType() {
return ItemType.TYPE_ANNOTATION_SET_REF_ITEM;
}
/** {@inheritDoc} */
public void addContents(DexFile file) {
MixedItemSection wordData = file.getWordData();
annotations = wordData.intern(annotations);
}
/** {@inheritDoc} */
@Override
public String toHuman() {
return annotations.toHuman();
}
/** {@inheritDoc} */
@Override
protected void writeTo0(DexFile file, AnnotatedOutput out) {
int annotationsOff = annotations.getAbsoluteOffset();
if (out.annotates()) {
out.annotate(4, " annotations_off: " + Hex.u4(annotationsOff));
}
out.writeInt(annotationsOff);
}
}
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