J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-1999 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package com.sun.tools.jdi; |
| 27 | |
| 28 | import java.util.List; |
| 29 | import java.util.ArrayList; |
| 30 | |
| 31 | public class JNITypeParser { |
| 32 | |
| 33 | static final char SIGNATURE_ENDCLASS = ';'; |
| 34 | static final char SIGNATURE_FUNC = '('; |
| 35 | static final char SIGNATURE_ENDFUNC = ')'; |
| 36 | |
| 37 | private String signature; |
| 38 | private List<String> typeNameList; |
| 39 | private List<String> signatureList; |
| 40 | private int currentIndex; |
| 41 | |
| 42 | JNITypeParser(String signature) { |
| 43 | this.signature = signature; |
| 44 | } |
| 45 | |
| 46 | static String typeNameToSignature(String signature) { |
| 47 | StringBuffer buffer = new StringBuffer(); |
| 48 | int firstIndex = signature.indexOf('['); |
| 49 | int index = firstIndex; |
| 50 | while (index != -1) { |
| 51 | buffer.append('['); |
| 52 | index = signature.indexOf('[', index + 1); |
| 53 | } |
| 54 | |
| 55 | if (firstIndex != -1) { |
| 56 | signature = signature.substring(0, firstIndex); |
| 57 | } |
| 58 | |
| 59 | if (signature.equals("boolean")) { |
| 60 | buffer.append('Z'); |
| 61 | } else if (signature.equals("byte")) { |
| 62 | buffer.append('B'); |
| 63 | } else if (signature.equals("char")) { |
| 64 | buffer.append('C'); |
| 65 | } else if (signature.equals("short")) { |
| 66 | buffer.append('S'); |
| 67 | } else if (signature.equals("int")) { |
| 68 | buffer.append('I'); |
| 69 | } else if (signature.equals("long")) { |
| 70 | buffer.append('J'); |
| 71 | } else if (signature.equals("float")) { |
| 72 | buffer.append('F'); |
| 73 | } else if (signature.equals("double")) { |
| 74 | buffer.append('D'); |
| 75 | } else { |
| 76 | buffer.append('L'); |
| 77 | buffer.append(signature.replace('.', '/')); |
| 78 | buffer.append(';'); |
| 79 | } |
| 80 | |
| 81 | return buffer.toString(); |
| 82 | } |
| 83 | |
| 84 | String typeName() { |
| 85 | return (String)typeNameList().get(typeNameList().size()-1); |
| 86 | } |
| 87 | |
| 88 | List<String> argumentTypeNames() { |
| 89 | return typeNameList().subList(0, typeNameList().size() - 1); |
| 90 | } |
| 91 | |
| 92 | String signature() { |
| 93 | return (String)signatureList().get(signatureList().size()-1); |
| 94 | } |
| 95 | |
| 96 | List<String> argumentSignatures() { |
| 97 | return signatureList().subList(0, signatureList().size() - 1); |
| 98 | } |
| 99 | |
| 100 | int dimensionCount() { |
| 101 | int count = 0; |
| 102 | String signature = signature(); |
| 103 | while (signature.charAt(count) == '[') { |
| 104 | count++; |
| 105 | } |
| 106 | return count; |
| 107 | } |
| 108 | |
| 109 | String componentSignature(int level) { |
| 110 | return signature().substring(level); |
| 111 | } |
| 112 | |
| 113 | private synchronized List<String> signatureList() { |
| 114 | if (signatureList == null) { |
| 115 | signatureList = new ArrayList<String>(10); |
| 116 | String elem; |
| 117 | |
| 118 | currentIndex = 0; |
| 119 | |
| 120 | while(currentIndex < signature.length()) { |
| 121 | elem = nextSignature(); |
| 122 | signatureList.add(elem); |
| 123 | } |
| 124 | if (signatureList.size() == 0) { |
| 125 | throw new IllegalArgumentException("Invalid JNI signature '" + |
| 126 | signature + "'"); |
| 127 | } |
| 128 | } |
| 129 | return signatureList; |
| 130 | } |
| 131 | |
| 132 | private synchronized List<String> typeNameList() { |
| 133 | if (typeNameList == null) { |
| 134 | typeNameList = new ArrayList<String>(10); |
| 135 | String elem; |
| 136 | |
| 137 | currentIndex = 0; |
| 138 | |
| 139 | while(currentIndex < signature.length()) { |
| 140 | elem = nextTypeName(); |
| 141 | typeNameList.add(elem); |
| 142 | } |
| 143 | if (typeNameList.size() == 0) { |
| 144 | throw new IllegalArgumentException("Invalid JNI signature '" + |
| 145 | signature + "'"); |
| 146 | } |
| 147 | } |
| 148 | return typeNameList; |
| 149 | } |
| 150 | |
| 151 | private String nextSignature() { |
| 152 | char key = signature.charAt(currentIndex++); |
| 153 | |
| 154 | switch(key) { |
| 155 | case (JDWP.Tag.ARRAY): |
| 156 | return key + nextSignature(); |
| 157 | |
| 158 | case (JDWP.Tag.OBJECT): |
| 159 | int endClass = signature.indexOf(SIGNATURE_ENDCLASS, |
| 160 | currentIndex); |
| 161 | String retVal = signature.substring(currentIndex - 1, |
| 162 | endClass + 1); |
| 163 | currentIndex = endClass + 1; |
| 164 | return retVal; |
| 165 | |
| 166 | case (JDWP.Tag.VOID): |
| 167 | case (JDWP.Tag.BOOLEAN): |
| 168 | case (JDWP.Tag.BYTE): |
| 169 | case (JDWP.Tag.CHAR): |
| 170 | case (JDWP.Tag.SHORT): |
| 171 | case (JDWP.Tag.INT): |
| 172 | case (JDWP.Tag.LONG): |
| 173 | case (JDWP.Tag.FLOAT): |
| 174 | case (JDWP.Tag.DOUBLE): |
| 175 | return String.valueOf(key); |
| 176 | |
| 177 | case SIGNATURE_ENDFUNC: |
| 178 | case SIGNATURE_FUNC: |
| 179 | return nextSignature(); |
| 180 | |
| 181 | default: |
| 182 | throw new IllegalArgumentException( |
| 183 | "Invalid JNI signature character '" + key + "'"); |
| 184 | |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | private String nextTypeName() { |
| 189 | char key = signature.charAt(currentIndex++); |
| 190 | |
| 191 | switch(key) { |
| 192 | case (JDWP.Tag.ARRAY): |
| 193 | return nextTypeName() + "[]"; |
| 194 | |
| 195 | case (JDWP.Tag.BYTE): |
| 196 | return "byte"; |
| 197 | |
| 198 | case (JDWP.Tag.CHAR): |
| 199 | return "char"; |
| 200 | |
| 201 | case (JDWP.Tag.OBJECT): |
| 202 | int endClass = signature.indexOf(SIGNATURE_ENDCLASS, |
| 203 | currentIndex); |
| 204 | String retVal = signature.substring(currentIndex, |
| 205 | endClass); |
| 206 | retVal = retVal.replace('/','.'); |
| 207 | currentIndex = endClass + 1; |
| 208 | return retVal; |
| 209 | |
| 210 | case (JDWP.Tag.FLOAT): |
| 211 | return "float"; |
| 212 | |
| 213 | case (JDWP.Tag.DOUBLE): |
| 214 | return "double"; |
| 215 | |
| 216 | case (JDWP.Tag.INT): |
| 217 | return "int"; |
| 218 | |
| 219 | case (JDWP.Tag.LONG): |
| 220 | return "long"; |
| 221 | |
| 222 | case (JDWP.Tag.SHORT): |
| 223 | return "short"; |
| 224 | |
| 225 | case (JDWP.Tag.VOID): |
| 226 | return "void"; |
| 227 | |
| 228 | case (JDWP.Tag.BOOLEAN): |
| 229 | return "boolean"; |
| 230 | |
| 231 | case SIGNATURE_ENDFUNC: |
| 232 | case SIGNATURE_FUNC: |
| 233 | return nextTypeName(); |
| 234 | |
| 235 | default: |
| 236 | throw new IllegalArgumentException( |
| 237 | "Invalid JNI signature character '" + key + "'"); |
| 238 | |
| 239 | } |
| 240 | } |
| 241 | } |