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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.rop.annotation.Annotation;
import com.android.dx.rop.annotation.AnnotationVisibility;
import com.android.dx.rop.annotation.NameValuePair;
import com.android.dx.rop.cst.Constant;
import com.android.dx.rop.cst.CstAnnotation;
import com.android.dx.rop.cst.CstArray;
import com.android.dx.rop.cst.CstUtf8;
import com.android.dx.util.ByteArrayAnnotatedOutput;
import com.android.dx.util.AnnotatedOutput;
import java.util.Arrays;
import java.util.Comparator;
/**
* Encoded array of constant values.
*/
public final class EncodedArrayItem extends OffsettedItem {
/** the required alignment for instances of this class */
private static final int ALIGNMENT = 1;
/** {@code non-null;} the array to represent */
private final CstArray array;
/**
* {@code null-ok;} encoded form, ready for writing to a file; set during
* {@link #place0}
*/
private byte[] encodedForm;
/**
* Constructs an instance.
*
* @param array {@code non-null;} array to represent
*/
public EncodedArrayItem(CstArray array) {
/*
* The write size isn't known up-front because (the variable-lengthed)
* leb128 type is used to represent some things.
*/
super(ALIGNMENT, -1);
if (array == null) {
throw new NullPointerException("array == null");
}
this.array = array;
this.encodedForm = null;
}
/** {@inheritDoc} */
@Override
public ItemType itemType() {
return ItemType.TYPE_ENCODED_ARRAY_ITEM;
}
/** {@inheritDoc} */
@Override
public int hashCode() {
return array.hashCode();
}
/** {@inheritDoc} */
@Override
protected int compareTo0(OffsettedItem other) {
EncodedArrayItem otherArray = (EncodedArrayItem) other;
return array.compareTo(otherArray.array);
}
/** {@inheritDoc} */
@Override
public String toHuman() {
return array.toHuman();
}
/** {@inheritDoc} */
public void addContents(DexFile file) {
ValueEncoder.addContents(file, array);
}
/** {@inheritDoc} */
@Override
protected void place0(Section addedTo, int offset) {
// Encode the data and note the size.
ByteArrayAnnotatedOutput out = new ByteArrayAnnotatedOutput();
ValueEncoder encoder = new ValueEncoder(addedTo.getFile(), out);
encoder.writeArray(array, false);
encodedForm = out.toByteArray();
setWriteSize(encodedForm.length);
}
/** {@inheritDoc} */
@Override
protected void writeTo0(DexFile file, AnnotatedOutput out) {
boolean annotates = out.annotates();
if (annotates) {
out.annotate(0, offsetString() + " encoded array");
/*
* The output is to be annotated, so redo the work previously
* done by place0(), except this time annotations will actually
* get emitted.
*/
ValueEncoder encoder = new ValueEncoder(file, out);
encoder.writeArray(array, true);
} else {
out.write(encodedForm);
}
}
}
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