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.rop.type.Type; 20 import com.android.dx.util.Hex; 21 22 /** 23 * Constants of type <code>char</code>. 24 */ 25 public final class CstChar 26 extends CstLiteral32 { 27 /** non-null; the value <code>0</code> as an instance of this class */ 28 public static final CstChar VALUE_0 = make((char) 0); 29 30 /** 31 * Makes an instance for the given value. This may (but does not 32 * necessarily) return an already-allocated instance. 33 * 34 * @param value the <code>char</code> value 35 */ make(char value)36 public static CstChar make(char value) { 37 return new CstChar(value); 38 } 39 40 /** 41 * Makes an instance for the given <code>int</code> value. This 42 * may (but does not necessarily) return an already-allocated 43 * instance. 44 * 45 * @param value the value, which must be in range for a <code>char</code> 46 * @return non-null; the appropriate instance 47 */ make(int value)48 public static CstChar make(int value) { 49 char cast = (char) value; 50 51 if (cast != value) { 52 throw new IllegalArgumentException("bogus char value: " + 53 value); 54 } 55 56 return make(cast); 57 } 58 59 /** 60 * Constructs an instance. This constructor is private; use {@link #make}. 61 * 62 * @param value the <code>char</code> value 63 */ CstChar(char value)64 private CstChar(char value) { 65 super(value); 66 } 67 68 /** {@inheritDoc} */ 69 @Override toString()70 public String toString() { 71 int value = getIntBits(); 72 return "char{0x" + Hex.u2(value) + " / " + value + '}'; 73 } 74 75 /** {@inheritDoc} */ getType()76 public Type getType() { 77 return Type.CHAR; 78 } 79 80 /** {@inheritDoc} */ 81 @Override typeName()82 public String typeName() { 83 return "char"; 84 } 85 86 /** {@inheritDoc} */ toHuman()87 public String toHuman() { 88 return Integer.toString(getIntBits()); 89 } 90 91 /** 92 * Gets the <code>char</code> value. 93 * 94 * @return the value 95 */ getValue()96 public char getValue() { 97 return (char) getIntBits(); 98 } 99 } 100