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.rop.cst; 18 19 import com.android.dexgen.rop.type.Type; 20 import com.android.dexgen.util.Hex; 21 22 /** 23 * Constants of type {@code short}. 24 */ 25 public final class CstShort 26 extends CstLiteral32 { 27 /** {@code non-null;} the value {@code 0} as an instance of this class */ 28 public static final CstShort VALUE_0 = make((short) 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 short} value 35 * @return {@code non-null;} the appropriate instance 36 */ make(short value)37 public static CstShort make(short value) { 38 return new CstShort(value); 39 } 40 41 /** 42 * Makes an instance for the given {@code int} value. This 43 * may (but does not necessarily) return an already-allocated 44 * instance. 45 * 46 * @param value the value, which must be in range for a {@code short} 47 * @return {@code non-null;} the appropriate instance 48 */ make(int value)49 public static CstShort make(int value) { 50 short cast = (short) value; 51 52 if (cast != value) { 53 throw new IllegalArgumentException("bogus short value: " + 54 value); 55 } 56 57 return make(cast); 58 } 59 60 /** 61 * Constructs an instance. This constructor is private; use {@link #make}. 62 * 63 * @param value the {@code short} value 64 */ CstShort(short value)65 private CstShort(short value) { 66 super(value); 67 } 68 69 /** {@inheritDoc} */ 70 @Override toString()71 public String toString() { 72 int value = getIntBits(); 73 return "short{0x" + Hex.u2(value) + " / " + value + '}'; 74 } 75 76 /** {@inheritDoc} */ getType()77 public Type getType() { 78 return Type.SHORT; 79 } 80 81 /** {@inheritDoc} */ 82 @Override typeName()83 public String typeName() { 84 return "short"; 85 } 86 87 /** {@inheritDoc} */ toHuman()88 public String toHuman() { 89 return Integer.toString(getIntBits()); 90 } 91 92 /** 93 * Gets the {@code short} value. 94 * 95 * @return the value 96 */ getValue()97 public short getValue() { 98 return (short) getIntBits(); 99 } 100 } 101