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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.dexgen.dex.file;
import com.android.dexgen.rop.annotation.Annotations;
import com.android.dexgen.rop.cst.CstFieldRef;
import com.android.dexgen.util.AnnotatedOutput;
import com.android.dexgen.util.Hex;
import com.android.dexgen.util.ToHuman;
/**
* Association of a field and its annotations.
*/
public final class FieldAnnotationStruct
implements ToHuman, Comparable<FieldAnnotationStruct> {
/** {@code non-null;} the field in question */
private final CstFieldRef field;
/** {@code non-null;} the associated annotations */
private AnnotationSetItem annotations;
/**
* Constructs an instance.
*
* @param field {@code non-null;} the field in question
* @param annotations {@code non-null;} the associated annotations
*/
public FieldAnnotationStruct(CstFieldRef field,
AnnotationSetItem annotations) {
if (field == null) {
throw new NullPointerException("field == null");
}
if (annotations == null) {
throw new NullPointerException("annotations == null");
}
this.field = field;
this.annotations = annotations;
}
/** {@inheritDoc} */
public int hashCode() {
return field.hashCode();
}
/** {@inheritDoc} */
public boolean equals(Object other) {
if (! (other instanceof FieldAnnotationStruct)) {
return false;
}
return field.equals(((FieldAnnotationStruct) other).field);
}
/** {@inheritDoc} */
public int compareTo(FieldAnnotationStruct other) {
return field.compareTo(other.field);
}
/** {@inheritDoc} */
public void addContents(DexFile file) {
FieldIdsSection fieldIds = file.getFieldIds();
MixedItemSection wordData = file.getWordData();
fieldIds.intern(field);
annotations = wordData.intern(annotations);
}
/** {@inheritDoc} */
public void writeTo(DexFile file, AnnotatedOutput out) {
int fieldIdx = file.getFieldIds().indexOf(field);
int annotationsOff = annotations.getAbsoluteOffset();
if (out.annotates()) {
out.annotate(0, " " + field.toHuman());
out.annotate(4, " field_idx: " + Hex.u4(fieldIdx));
out.annotate(4, " annotations_off: " +
Hex.u4(annotationsOff));
}
out.writeInt(fieldIdx);
out.writeInt(annotationsOff);
}
/** {@inheritDoc} */
public String toHuman() {
return field.toHuman() + ": " + annotations;
}
/**
* Gets the field this item is for.
*
* @return {@code non-null;} the field
*/
public CstFieldRef getField() {
return field;
}
/**
* Gets the associated annotations.
*
* @return {@code non-null;} the annotations
*/
public Annotations getAnnotations() {
return annotations.getAnnotations();
}
}
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