1 /* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2014 Eric Lafortune (eric (at) graphics.cornell.edu) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation; either version 2 of the License, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 package proguard.classfile.instruction; 22 23 import proguard.classfile.ClassConstants; 24 25 /** 26 * Utility methods for converting between representations of names and 27 * descriptions. 28 * 29 * @author Eric Lafortune 30 */ 31 public class InstructionUtil 32 { 33 /** 34 * Returns the internal type corresponding to the given 'newarray' type. 35 * @param arrayType <code>InstructionConstants.ARRAY_T_BOOLEAN</code>, 36 * <code>InstructionConstants.ARRAY_T_BYTE</code>, 37 * <code>InstructionConstants.ARRAY_T_CHAR</code>, 38 * <code>InstructionConstants.ARRAY_T_SHORT</code>, 39 * <code>InstructionConstants.ARRAY_T_INT</code>, 40 * <code>InstructionConstants.ARRAY_T_LONG</code>, 41 * <code>InstructionConstants.ARRAY_T_FLOAT</code>, or 42 * <code>InstructionConstants.ARRAY_T_DOUBLE</code>. 43 * @return <code>ClassConstants.TYPE_BOOLEAN</code>, 44 * <code>ClassConstants.TYPE_BYTE</code>, 45 * <code>ClassConstants.TYPE_CHAR</code>, 46 * <code>ClassConstants.TYPE_SHORT</code>, 47 * <code>ClassConstants.TYPE_INT</code>, 48 * <code>ClassConstants.TYPE_LONG</code>, 49 * <code>ClassConstants.TYPE_FLOAT</code>, or 50 * <code>ClassConstants.TYPE_DOUBLE</code>. 51 */ 52 public static char internalTypeFromArrayType(byte arrayType) 53 { 54 switch (arrayType) 55 { 56 case InstructionConstants.ARRAY_T_BOOLEAN: return ClassConstants.TYPE_BOOLEAN; 57 case InstructionConstants.ARRAY_T_CHAR: return ClassConstants.TYPE_CHAR; 58 case InstructionConstants.ARRAY_T_FLOAT: return ClassConstants.TYPE_FLOAT; 59 case InstructionConstants.ARRAY_T_DOUBLE: return ClassConstants.TYPE_DOUBLE; 60 case InstructionConstants.ARRAY_T_BYTE: return ClassConstants.TYPE_BYTE; 61 case InstructionConstants.ARRAY_T_SHORT: return ClassConstants.TYPE_SHORT; 62 case InstructionConstants.ARRAY_T_INT: return ClassConstants.TYPE_INT; 63 case InstructionConstants.ARRAY_T_LONG: return ClassConstants.TYPE_LONG; 64 default: throw new IllegalArgumentException("Unknown array type ["+arrayType+"]"); 65 } 66 } 67 } 68
