1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.dexgen.dex.file; 18 19 import com.android.dexgen.rop.cst.Constant; 20 21 import java.util.Collection; 22 import java.util.Collections; 23 import java.util.List; 24 25 /** 26 * File header section of a {@code .dex} file. 27 */ 28 public final class HeaderSection extends UniformItemSection { 29 /** {@code non-null;} the list of the one item in the section */ 30 private final List<HeaderItem> list; 31 32 /** 33 * Constructs an instance. The file offset is initially unknown. 34 * 35 * @param file {@code non-null;} file that this instance is part of 36 */ 37 public HeaderSection(DexFile file) { 38 super(null, file, 4); 39 40 HeaderItem item = new HeaderItem(); 41 item.setIndex(0); 42 43 this.list = Collections.singletonList(item); 44 } 45 46 /** {@inheritDoc} */ 47 @Override 48 public IndexedItem get(Constant cst) { 49 return null; 50 } 51 52 /** {@inheritDoc} */ 53 @Override 54 public Collection<? extends Item> items() { 55 return list; 56 } 57 58 /** {@inheritDoc} */ 59 @Override 60 protected void orderItems() { 61 // Nothing to do here. 62 } 63 } 64
