| /* |
| * 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.Annotations; |
| import com.android.dx.rop.annotation.Annotation; |
| import com.android.dx.util.AnnotatedOutput; |
| import com.android.dx.util.Hex; |
| |
| /** |
| * Set of annotations, where no annotation type appears more than once. |
| */ |
| public final class AnnotationSetItem extends OffsettedItem { |
| /** the required alignment for instances of this class */ |
| private static final int ALIGNMENT = 4; |
| |
| /** the size of an entry int the set: one {@code uint} */ |
| private static final int ENTRY_WRITE_SIZE = 4; |
| |
| /** {@code non-null;} the set of annotations */ |
| private final Annotations annotations; |
| |
| /** |
| * {@code non-null;} set of annotations as individual items in an array. |
| * <b>Note:</b> The contents have to get sorted by type id before |
| * writing. |
| */ |
| private final AnnotationItem[] items; |
| |
| /** |
| * Constructs an instance. |
| * |
| * @param annotations {@code non-null;} set of annotations |
| */ |
| public AnnotationSetItem(Annotations annotations) { |
| super(ALIGNMENT, writeSize(annotations)); |
| |
| this.annotations = annotations; |
| this.items = new AnnotationItem[annotations.size()]; |
| |
| int at = 0; |
| for (Annotation a : annotations.getAnnotations()) { |
| items[at] = new AnnotationItem(a); |
| at++; |
| } |
| } |
| |
| /** |
| * Gets the write size for the given set. |
| * |
| * @param annotations {@code non-null;} the set |
| * @return {@code > 0;} the write size |
| */ |
| private static int writeSize(Annotations annotations) { |
| // This includes an int size at the start of the list. |
| |
| try { |
| return (annotations.size() * ENTRY_WRITE_SIZE) + 4; |
| } catch (NullPointerException ex) { |
| // Elucidate the exception. |
| throw new NullPointerException("list == null"); |
| } |
| } |
| |
| /** |
| * Gets the underlying annotations of this instance |
| * |
| * @return {@code non-null;} the annotations |
| */ |
| public Annotations getAnnotations() { |
| return annotations; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public int hashCode() { |
| return annotations.hashCode(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected int compareTo0(OffsettedItem other) { |
| AnnotationSetItem otherSet = (AnnotationSetItem) other; |
| |
| return annotations.compareTo(otherSet.annotations); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public ItemType itemType() { |
| return ItemType.TYPE_ANNOTATION_SET_ITEM; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public String toHuman() { |
| return annotations.toString(); |
| } |
| |
| /** {@inheritDoc} */ |
| public void addContents(DexFile file) { |
| MixedItemSection byteData = file.getByteData(); |
| int size = items.length; |
| |
| for (int i = 0; i < size; i++) { |
| items[i] = byteData.intern(items[i]); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected void place0(Section addedTo, int offset) { |
| // Sort the array to be in type id index order. |
| AnnotationItem.sortByTypeIdIndex(items); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected void writeTo0(DexFile file, AnnotatedOutput out) { |
| boolean annotates = out.annotates(); |
| int size = items.length; |
| |
| if (annotates) { |
| out.annotate(0, offsetString() + " annotation set"); |
| out.annotate(4, " size: " + Hex.u4(size)); |
| } |
| |
| out.writeInt(size); |
| |
| for (int i = 0; i < size; i++) { |
| AnnotationItem item = items[i]; |
| int offset = item.getAbsoluteOffset(); |
| |
| if (annotates) { |
| out.annotate(4, " entries[" + Integer.toHexString(i) + "]: " + |
| Hex.u4(offset)); |
| items[i].annotateTo(out, " "); |
| } |
| |
| out.writeInt(offset); |
| } |
| } |
| } |