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.dx.rop.cst; 18 19 import com.android.dx.util.FixedSizeList; 20 21 /** 22 * Constant type to represent a fixed array of other constants. 23 */ 24 public class CstArray extends Constant { 25 /** {@code non-null;} the actual list of contents */ 26 private final List list; 27 28 /** 29 * Constructs an instance. 30 * 31 * @param list {@code non-null;} the actual list of contents 32 */ CstArray(List list)33 public CstArray(List list) { 34 if (list == null) { 35 throw new NullPointerException("list == null"); 36 } 37 38 list.throwIfMutable(); 39 40 this.list = list; 41 } 42 43 /** {@inheritDoc} */ 44 @Override equals(Object other)45 public boolean equals(Object other) { 46 if (! (other instanceof CstArray)) { 47 return false; 48 } 49 50 return list.equals(((CstArray) other).list); 51 } 52 53 /** {@inheritDoc} */ 54 @Override hashCode()55 public int hashCode() { 56 return list.hashCode(); 57 } 58 59 /** {@inheritDoc} */ 60 @Override compareTo0(Constant other)61 protected int compareTo0(Constant other) { 62 return list.compareTo(((CstArray) other).list); 63 } 64 65 /** {@inheritDoc} */ 66 @Override toString()67 public String toString() { 68 return list.toString("array{", ", ", "}"); 69 } 70 71 /** {@inheritDoc} */ 72 @Override typeName()73 public String typeName() { 74 return "array"; 75 } 76 77 /** {@inheritDoc} */ 78 @Override isCategory2()79 public boolean isCategory2() { 80 return false; 81 } 82 83 /** {@inheritDoc} */ toHuman()84 public String toHuman() { 85 return list.toHuman("{", ", ", "}"); 86 } 87 88 /** 89 * Get the underlying list. 90 * 91 * @return {@code non-null;} the list 92 */ getList()93 public List getList() { 94 return list; 95 } 96 97 /** 98 * List of {@link Constant} instances. 99 */ 100 public static final class List 101 extends FixedSizeList implements Comparable<List> { 102 /** 103 * Constructs an instance. All indices initially contain 104 * {@code null}. 105 * 106 * @param size the size of the list 107 */ List(int size)108 public List(int size) { 109 super(size); 110 } 111 112 /** {@inheritDoc} */ compareTo(List other)113 public int compareTo(List other) { 114 int thisSize = size(); 115 int otherSize = other.size(); 116 int compareSize = (thisSize < otherSize) ? thisSize : otherSize; 117 118 for (int i = 0; i < compareSize; i++) { 119 Constant thisItem = (Constant) get0(i); 120 Constant otherItem = (Constant) other.get0(i); 121 int compare = thisItem.compareTo(otherItem); 122 if (compare != 0) { 123 return compare; 124 } 125 } 126 127 if (thisSize < otherSize) { 128 return -1; 129 } else if (thisSize > otherSize) { 130 return 1; 131 } 132 133 return 0; 134 } 135 136 /** 137 * Gets the element at the given index. It is an error to call 138 * this with the index for an element which was never set; if you 139 * do that, this will throw {@code NullPointerException}. 140 * 141 * @param n {@code >= 0, < size();} which index 142 * @return {@code non-null;} element at that index 143 */ get(int n)144 public Constant get(int n) { 145 return (Constant) get0(n); 146 } 147 148 /** 149 * Sets the element at the given index. 150 * 151 * @param n {@code >= 0, < size();} which index 152 * @param a {@code null-ok;} the element to set at {@code n} 153 */ set(int n, Constant a)154 public void set(int n, Constant a) { 155 set0(n, a); 156 } 157 } 158 } 159