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 17package com.android.dx.cf.code; 18 19import com.android.dx.util.FixedSizeList; 20import com.android.dx.util.Hex; 21import com.android.dx.util.LabeledList; 22 23/** 24 * List of {@link ByteBlock} instances. 25 */ 26public final class ByteBlockList extends LabeledList { 27 28 /** 29 * Constructs an instance. 30 * 31 * @param size {@code >= 0;} the number of elements to be in the list 32 */ 33 public ByteBlockList(int size) { 34 super(size); 35 } 36 37 /** 38 * Gets the indicated element. It is an error to call this with the 39 * index for an element which was never set; if you do that, this 40 * will throw {@code NullPointerException}. 41 * 42 * @param n {@code >= 0, < size();} which element 43 * @return {@code non-null;} the indicated element 44 */ 45 public ByteBlock get(int n) { 46 return (ByteBlock) get0(n); 47 } 48 49 /** 50 * Gets the block with the given label. 51 * 52 * @param label the label to look for 53 * @return {@code non-null;} the block with the given label 54 */ 55 public ByteBlock labelToBlock(int label) { 56 int idx = indexOfLabel(label); 57 58 if (idx < 0) { 59 throw new IllegalArgumentException("no such label: " 60 + Hex.u2(label)); 61 } 62 63 return get(idx); 64 } 65 66 /** 67 * Sets the element at the given index. 68 * 69 * @param n {@code >= 0, < size();} which element 70 * @param bb {@code null-ok;} the value to store 71 */ 72 public void set(int n, ByteBlock bb) { 73 super.set(n, bb); 74 } 75} 76