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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2008, Oracle and/or its affiliates. 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. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package com.sun.tools.jdi; | ||
| 27 | |||
| 28 | import com.sun.jdi.*; | ||
| 29 | |||
| 30 | import java.util.*; | ||
| 31 | import java.lang.ref.SoftReference; | ||
| 32 | |||
| 33 | public abstract class ReferenceTypeImpl extends TypeImpl | ||
| 34 | implements ReferenceType { | ||
| 35 | protected long ref; | ||
| 36 | private String signature = null; | ||
| 37 | private String genericSignature = null; | ||
| 38 | private boolean genericSignatureGotten = false; | ||
| 39 | private String baseSourceName = null; | ||
| 40 | private String baseSourceDir = null; | ||
| 41 | private String baseSourcePath = null; | ||
| 42 | protected int modifiers = -1; | ||
| 43 | private SoftReference<List<Field>> fieldsRef = null; | ||
| 44 | private SoftReference<List<Method>> methodsRef = null; | ||
| 45 | private SoftReference<SDE> sdeRef = null; | ||
| 46 | |||
| 47 | private boolean isClassLoaderCached = false; | ||
| 48 | private ClassLoaderReference classLoader = null; | ||
| 49 | private ClassObjectReference classObject = null; | ||
| 50 | |||
| 51 | private int status = 0; | ||
| 52 | private boolean isPrepared = false; | ||
| 53 | |||
| 54 | |||
| 55 | private boolean versionNumberGotten = false; | ||
| 56 | private int majorVersion; | ||
| 57 | private int minorVersion; | ||
| 58 | |||
| 59 | private boolean constantPoolInfoGotten = false; | ||
| 60 | private int constanPoolCount; | ||
| 61 | private byte[] constantPoolBytes; | ||
| 62 | private SoftReference<byte[]> constantPoolBytesRef = null; | ||
| 63 | |||
| 64 | /* to mark a SourceFile request that returned a genuine JDWP.Error.ABSENT_INFORMATION */ | ||
| 65 | private static final String ABSENT_BASE_SOURCE_NAME = "**ABSENT_BASE_SOURCE_NAME**"; | ||
| 66 | |||
| 67 | /* to mark when no info available */ | ||
| 68 | static final SDE NO_SDE_INFO_MARK = new SDE(); | ||
| 69 | |||
| 70 | // bits set when initialization was attempted (succeeded or failed) | ||
| 71 | private static final int INITIALIZED_OR_FAILED = | ||
| 72 | JDWP.ClassStatus.INITIALIZED | JDWP.ClassStatus.ERROR; | ||
| 73 | |||
| 74 | |||
| 75 | protected ReferenceTypeImpl(VirtualMachine aVm, long aRef) { | ||
| 76 | super(aVm); | ||
| 77 | ref = aRef; | ||
| 78 | genericSignatureGotten = false; | ||
| 79 | } | ||
| 80 | |||
| 81 | void noticeRedefineClass() { | ||
| 82 | //Invalidate information previously fetched and cached. | ||
| 83 | //These will be refreshed later on demand. | ||
| 84 | baseSourceName = null; | ||
| 85 | baseSourcePath = null; | ||
| 86 | modifiers = -1; | ||
| 87 | fieldsRef = null; | ||
| 88 | methodsRef = null; | ||
| 89 | sdeRef = null; | ||
| 90 | versionNumberGotten = false; | ||
| 91 | constantPoolInfoGotten = false; | ||
| 92 | } | ||
| 93 | |||
| 94 | Method getMethodMirror(long ref) { | ||
| 95 | if (ref == 0) { | ||
| 96 | // obsolete method | ||
| 97 | return new ObsoleteMethodImpl(vm, this); | ||
| 98 | } | ||
| 99 | // Fetch all methods for the class, check performance impact | ||
| 100 | // Needs no synchronization now, since methods() returns | ||
| 101 | // unmodifiable local data | ||
| 102 | Iterator it = methods().iterator(); | ||
| 103 | while (it.hasNext()) { | ||
| 104 | MethodImpl method = (MethodImpl)it.next(); | ||
| 105 | if (method.ref() == ref) { | ||
| 106 | return method; | ||
| 107 | } | ||
| 108 | } | ||
| 109 | throw new IllegalArgumentException("Invalid method id: " + ref); | ||
| 110 | } | ||
| 111 | |||
| 112 | Field getFieldMirror(long ref) { | ||
| 113 | // Fetch all fields for the class, check performance impact | ||
| 114 | // Needs no synchronization now, since fields() returns | ||
| 115 | // unmodifiable local data | ||
| 116 | Iterator it = fields().iterator(); | ||
| 117 | while (it.hasNext()) { | ||
| 118 | FieldImpl field = (FieldImpl)it.next(); | ||
| 119 | if (field.ref() == ref) { | ||
| 120 | return field; | ||
| 121 | } | ||
| 122 | } | ||
| 123 | throw new IllegalArgumentException("Invalid field id: " + ref); | ||
| 124 | } | ||
| 125 | |||
| 126 | public boolean equals(Object obj) { | ||
| 127 | if ((obj != null) && (obj instanceof ReferenceTypeImpl)) { | ||
| 128 | ReferenceTypeImpl other = (ReferenceTypeImpl)obj; | ||
| 129 | return (ref() == other.ref()) && | ||
| 130 | (vm.equals(other.virtualMachine())); | ||
| 131 | } else { | ||
| 132 | return false; | ||
| 133 | } | ||
| 134 | } | ||
| 135 | |||
| 136 | public int hashCode() { | ||
| 137 | return(int)ref(); | ||
| 138 | } | ||
| 139 | |||
| 140 | public int compareTo(ReferenceType object) { | ||
| 141 | /* | ||
| 142 | * Note that it is critical that compareTo() == 0 | ||
| 143 | * implies that equals() == true. Otherwise, TreeSet | ||
| 144 | * will collapse classes. | ||
| 145 | * | ||
| 146 | * (Classes of the same name loaded by different class loaders | ||
| 147 | * or in different VMs must not return 0). | ||
| 148 | */ | ||
| 149 | ReferenceTypeImpl other = (ReferenceTypeImpl)object; | ||
| 150 | int comp = name().compareTo(other.name()); | ||
| 151 | if (comp == 0) { | ||
| 152 | long rf1 = ref(); | ||
| 153 | long rf2 = other.ref(); | ||
| 154 | // optimize for typical case: refs equal and VMs equal | ||
| 155 | if (rf1 == rf2) { | ||
| 156 | // sequenceNumbers are always positive | ||
| 157 | comp = vm.sequenceNumber - | ||
| 158 | ((VirtualMachineImpl)(other.virtualMachine())).sequenceNumber; | ||
| 159 | } else { | ||
| 160 | comp = (rf1 < rf2)? -1 : 1; | ||
| 161 | } | ||
| 162 | } | ||
| 163 | return comp; | ||
| 164 | } | ||
| 165 | |||
| 166 | public String signature() { | ||
| 167 | if (signature == null) { | ||
| 168 | // Does not need synchronization, since worst-case | ||
| 169 | // static info is fetched twice | ||
| 170 | if (vm.canGet1_5LanguageFeatures()) { | ||
| 171 | /* | ||
| 172 | * we might as well get both the signature and the | ||
| 173 | * generic signature. | ||
| 174 | */ | ||
| 175 | genericSignature(); | ||
| 176 | } else { | ||
| 177 | try { | ||
| 178 | signature = JDWP.ReferenceType.Signature. | ||
| 179 | process(vm, this).signature; | ||
| 180 | } catch (JDWPException exc) { | ||
| 181 | throw exc.toJDIException(); | ||
| 182 | } | ||
| 183 | } | ||
| 184 | } | ||
| 185 | return signature; | ||
| 186 | } | ||
| 187 | |||
| 188 | public String genericSignature() { | ||
| 189 | // This gets both the signature and the generic signature | ||
| 190 | if (vm.canGet1_5LanguageFeatures() && !genericSignatureGotten) { | ||
| 191 | // Does not need synchronization, since worst-case | ||
| 192 | // static info is fetched twice | ||
| 193 | JDWP.ReferenceType.SignatureWithGeneric result; | ||
| 194 | try { | ||
| 195 | result = JDWP.ReferenceType.SignatureWithGeneric. | ||
| 196 | process(vm, this); | ||
| 197 | } catch (JDWPException exc) { | ||
| 198 | throw exc.toJDIException(); | ||
| 199 | } | ||
| 200 | signature = result.signature; | ||
| 201 | setGenericSignature(result.genericSignature); | ||
| 202 | } | ||
| 203 | return genericSignature; | ||
| 204 | } | ||
| 205 | |||
| 206 | public ClassLoaderReference classLoader() { | ||
| 207 | if (!isClassLoaderCached) { | ||
| 208 | // Does not need synchronization, since worst-case | ||
| 209 | // static info is fetched twice | ||
| 210 | try { | ||
| 211 | classLoader = (ClassLoaderReference) | ||
| 212 | JDWP.ReferenceType.ClassLoader. | ||
| 213 | process(vm, this).classLoader; | ||
| 214 | isClassLoaderCached = true; | ||
| 215 | } catch (JDWPException exc) { | ||
| 216 | throw exc.toJDIException(); | ||
| 217 | } | ||
| 218 | } | ||
| 219 | return classLoader; | ||
| 220 | } | ||
| 221 | |||
| 222 | public boolean isPublic() { | ||
| 223 | if (modifiers == -1) | ||
| 224 | getModifiers(); | ||
| 225 | |||
| 226 | return((modifiers & VMModifiers.PUBLIC) > 0); | ||
| 227 | } | ||
| 228 | |||
| 229 | public boolean isProtected() { | ||
| 230 | if (modifiers == -1) | ||
| 231 | getModifiers(); | ||
| 232 | |||
| 233 | return((modifiers & VMModifiers.PROTECTED) > 0); | ||
| 234 | } | ||
| 235 | |||
| 236 | public boolean isPrivate() { | ||
| 237 | if (modifiers == -1) | ||
| 238 | getModifiers(); | ||
| 239 | |||
| 240 | return((modifiers & VMModifiers.PRIVATE) > 0); | ||
| 241 | } | ||
| 242 | |||
| 243 | public boolean isPackagePrivate() { | ||
| 244 | return !isPublic() && !isPrivate() && !isProtected(); | ||
| 245 | } | ||
| 246 | |||
| 247 | public boolean isAbstract() { | ||
| 248 | if (modifiers == -1) | ||
| 249 | getModifiers(); | ||
| 250 | |||
| 251 | return((modifiers & VMModifiers.ABSTRACT) > 0); | ||
| 252 | } | ||
| 253 | |||
| 254 | public boolean isFinal() { | ||
| 255 | if (modifiers == -1) | ||
| 256 | getModifiers(); | ||
| 257 | |||
| 258 | return((modifiers & VMModifiers.FINAL) > 0); | ||
| 259 | } | ||
| 260 | |||
| 261 | public boolean isStatic() { | ||
| 262 | if (modifiers == -1) | ||
| 263 | getModifiers(); | ||
| 264 | |||
| 265 | return((modifiers & VMModifiers.STATIC) > 0); | ||
| 266 | } | ||
| 267 | |||
| 268 | public boolean isPrepared() { | ||
| 269 | // This ref type may have been prepared before we were getting | ||
| 270 | // events, so get it once. After that, | ||
| 271 | // this status flag is updated through the ClassPrepareEvent, | ||
| 272 | // there is no need for the expense of a JDWP query. | ||
| 273 | if (status == 0) { | ||
| 274 | updateStatus(); | ||
| 275 | } | ||
| 276 | return isPrepared; | ||
| 277 | } | ||
| 278 | |||
| 279 | public boolean isVerified() { | ||
| 280 | // Once true, it never resets, so we don't need to update | ||
| 281 | if ((status & JDWP.ClassStatus.VERIFIED) == 0) { | ||
| 282 | updateStatus(); | ||
| 283 | } | ||
| 284 | return (status & JDWP.ClassStatus.VERIFIED) != 0; | ||
| 285 | } | ||
| 286 | |||
| 287 | public boolean isInitialized() { | ||
| 288 | // Once initialization succeeds or fails, it never resets, | ||
| 289 | // so we don't need to update | ||
| 290 | if ((status & INITIALIZED_OR_FAILED) == 0) { | ||
| 291 | updateStatus(); | ||
| 292 | } | ||
| 293 | return (status & JDWP.ClassStatus.INITIALIZED) != 0; | ||
| 294 | } | ||
| 295 | |||
| 296 | public boolean failedToInitialize() { | ||
| 297 | // Once initialization succeeds or fails, it never resets, | ||
| 298 | // so we don't need to update | ||
| 299 | if ((status & INITIALIZED_OR_FAILED) == 0) { | ||
| 300 | updateStatus(); | ||
| 301 | } | ||
| 302 | return (status & JDWP.ClassStatus.ERROR) != 0; | ||
| 303 | } | ||
| 304 | |||
| 305 | public List<Field> fields() { | ||
| 306 | List<Field> fields = (fieldsRef == null) ? null : fieldsRef.get(); | ||
| 307 | if (fields == null) { | ||
| 308 | if (vm.canGet1_5LanguageFeatures()) { | ||
| 309 | JDWP.ReferenceType.FieldsWithGeneric.FieldInfo[] jdwpFields; | ||
| 310 | try { | ||
| 311 | jdwpFields = JDWP.ReferenceType.FieldsWithGeneric.process(vm, this).declared; | ||
| 312 | } catch (JDWPException exc) { | ||
| 313 | throw exc.toJDIException(); | ||
| 314 | } | ||
| 315 | fields = new ArrayList<Field>(jdwpFields.length); | ||
| 316 | for (int i=0; i<jdwpFields.length; i++) { | ||
| 317 | JDWP.ReferenceType.FieldsWithGeneric.FieldInfo fi | ||
| 318 | = jdwpFields[i]; | ||
| 319 | |||
| 320 | Field field = new FieldImpl(vm, this, fi.fieldID, | ||
| 321 | fi.name, fi.signature, | ||
| 322 | fi.genericSignature, | ||
| 323 | fi.modBits); | ||
| 324 | fields.add(field); | ||
| 325 | } | ||
| 326 | } else { | ||
| 327 | JDWP.ReferenceType.Fields.FieldInfo[] jdwpFields; | ||
| 328 | try { | ||
| 329 | jdwpFields = JDWP.ReferenceType.Fields. | ||
| 330 | process(vm, this).declared; | ||
| 331 | } catch (JDWPException exc) { | ||
| 332 | throw exc.toJDIException(); | ||
| 333 | } | ||
| 334 | fields = new ArrayList<Field>(jdwpFields.length); | ||
| 335 | for (int i=0; i<jdwpFields.length; i++) { | ||
| 336 | JDWP.ReferenceType.Fields.FieldInfo fi = jdwpFields[i]; | ||
| 337 | |||
| 338 | Field field = new FieldImpl(vm, this, fi.fieldID, | ||
| 339 | fi.name, fi.signature, | ||
| 340 | null, | ||
| 341 | fi.modBits); | ||
| 342 | fields.add(field); | ||
| 343 | } | ||
| 344 | } | ||
| 345 | |||
| 346 | fields = Collections.unmodifiableList(fields); | ||
| 347 | fieldsRef = new SoftReference<List<Field>>(fields); | ||
| 348 | } | ||
| 349 | return fields; | ||
| 350 | } | ||
| 351 | |||
| 352 | abstract List<? extends ReferenceType> inheritedTypes(); | ||
| 353 | |||
| 354 | void addVisibleFields(List<Field> visibleList, Map<String, Field> visibleTable, List<String> ambiguousNames) { | ||
| 355 | for (Field field : visibleFields()) { | ||
| 356 | String name = field.name(); | ||
| 357 | if (!ambiguousNames.contains(name)) { | ||
| 358 | Field duplicate = visibleTable.get(name); | ||
| 359 | if (duplicate == null) { | ||
| 360 | visibleList.add(field); | ||
| 361 | visibleTable.put(name, field); | ||
| 362 | } else if (!field.equals(duplicate)) { | ||
| 363 | ambiguousNames.add(name); | ||
| 364 | visibleTable.remove(name); | ||
| 365 | visibleList.remove(duplicate); | ||
| 366 | } else { | ||
| 367 | // identical field from two branches; do nothing | ||
| 368 | } | ||
| 369 | } | ||
| 370 | } | ||
| 371 | } | ||
| 372 | |||
| 373 | public List<Field> visibleFields() { | ||
| 374 | /* | ||
| 375 | * Maintain two different collections of visible fields. The | ||
| 376 | * list maintains a reasonable order for return. The | ||
| 377 | * hash map provides an efficient way to lookup visible fields | ||
| 378 | * by name, important for finding hidden or ambiguous fields. | ||
| 379 | */ | ||
| 380 | List<Field> visibleList = new ArrayList<Field>(); | ||
| 381 | Map<String, Field> visibleTable = new HashMap<String, Field>(); | ||
| 382 | |||
| 383 | /* Track fields removed from above collection due to ambiguity */ | ||
| 384 | List<String> ambiguousNames = new ArrayList<String>(); | ||
| 385 | |||
| 386 | /* Add inherited, visible fields */ | ||
| 387 | List<? extends ReferenceType> types = inheritedTypes(); | ||
| 388 | Iterator iter = types.iterator(); | ||
| 389 | while (iter.hasNext()) { | ||
| 390 | /* | ||
| 391 | * TO DO: Be defensive and check for cyclic interface inheritance | ||
| 392 | */ | ||
| 393 | ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next(); | ||
| 394 | type.addVisibleFields(visibleList, visibleTable, ambiguousNames); | ||
| 395 | } | ||
| 396 | |||
| 397 | /* | ||
| 398 | * Insert fields from this type, removing any inherited fields they | ||
| 399 | * hide. | ||
| 400 | */ | ||
| 401 | List<Field> retList = new ArrayList<Field>(fields()); | ||
| 402 | for (Field field : retList) { | ||
| 403 | Field hidden = visibleTable.get(field.name()); | ||
| 404 | if (hidden != null) { | ||
| 405 | visibleList.remove(hidden); | ||
| 406 | } | ||
| 407 | } | ||
| 408 | retList.addAll(visibleList); | ||
| 409 | return retList; | ||
| 410 | } | ||
| 411 | |||
| 412 | void addAllFields(List<Field> fieldList, Set<ReferenceType> typeSet) { | ||
| 413 | /* Continue the recursion only if this type is new */ | ||
| 414 | if (!typeSet.contains(this)) { | ||
| 415 | typeSet.add((ReferenceType)this); | ||
| 416 | |||
| 417 | /* Add local fields */ | ||
| 418 | fieldList.addAll(fields()); | ||
| 419 | |||
| 420 | /* Add inherited fields */ | ||
| 421 | List<? extends ReferenceType> types = inheritedTypes(); | ||
| 422 | Iterator iter = types.iterator(); | ||
| 423 | while (iter.hasNext()) { | ||
| 424 | ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next(); | ||
| 425 | type.addAllFields(fieldList, typeSet); | ||
| 426 | } | ||
| 427 | } | ||
| 428 | } | ||
| 429 | public List<Field> allFields() { | ||
| 430 | List<Field> fieldList = new ArrayList<Field>(); | ||
| 431 | Set<ReferenceType> typeSet = new HashSet<ReferenceType>(); | ||
| 432 | addAllFields(fieldList, typeSet); | ||
| 433 | return fieldList; | ||
| 434 | } | ||
| 435 | |||
| 436 | public Field fieldByName(String fieldName) { | ||
| 437 | java.util.List searchList; | ||
| 438 | Field f; | ||
| 439 | |||
| 440 | searchList = visibleFields(); | ||
| 441 | |||
| 442 | for (int i=0; i<searchList.size(); i++) { | ||
| 443 | f = (Field)searchList.get(i); | ||
| 444 | |||
| 445 | if (f.name().equals(fieldName)) { | ||
| 446 | return f; | ||
| 447 | } | ||
| 448 | } | ||
| 449 | //throw new NoSuchFieldException("Field '" + fieldName + "' not found in " + name()); | ||
| 450 | return null; | ||
| 451 | } | ||
| 452 | |||
| 453 | public List<Method> methods() { | ||
| 454 | List<Method> methods = (methodsRef == null) ? null : methodsRef.get(); | ||
| 455 | if (methods == null) { | ||
| 456 | if (!vm.canGet1_5LanguageFeatures()) { | ||
| 457 | methods = methods1_4(); | ||
| 458 | } else { | ||
| 459 | JDWP.ReferenceType.MethodsWithGeneric.MethodInfo[] declared; | ||
| 460 | try { | ||
| 461 | declared = JDWP.ReferenceType.MethodsWithGeneric. | ||
| 462 | process(vm, this).declared; | ||
| 463 | } catch (JDWPException exc) { | ||
| 464 | throw exc.toJDIException(); | ||
| 465 | } | ||
| 466 | methods = new ArrayList<Method>(declared.length); | ||
| 467 | for (int i=0; i<declared.length; i++) { | ||
| 468 | JDWP.ReferenceType.MethodsWithGeneric.MethodInfo | ||
| 469 | mi = declared[i]; | ||
| 470 | |||
| 471 | Method method = MethodImpl.createMethodImpl(vm, this, | ||
| 472 | mi.methodID, | ||
| 473 | mi.name, mi.signature, | ||
| 474 | mi.genericSignature, | ||
| 475 | mi.modBits); | ||
| 476 | methods.add(method); | ||
| 477 | } | ||
| 478 | } | ||
| 479 | methods = Collections.unmodifiableList(methods); | ||
| 480 | methodsRef = new SoftReference<List<Method>>(methods); | ||
| 481 | } | ||
| 482 | return methods; | ||
| 483 | } | ||
| 484 | |||
| 485 | private List<Method> methods1_4() { | ||
| 486 | List<Method> methods; | ||
| 487 | JDWP.ReferenceType.Methods.MethodInfo[] declared; | ||
| 488 | try { | ||
| 489 | declared = JDWP.ReferenceType.Methods. | ||
| 490 | process(vm, this).declared; | ||
| 491 | } catch (JDWPException exc) { | ||
| 492 | throw exc.toJDIException(); | ||
| 493 | } | ||
| 494 | methods = new ArrayList<Method>(declared.length); | ||
| 495 | for (int i=0; i<declared.length; i++) { | ||
| 496 | JDWP.ReferenceType.Methods.MethodInfo mi = declared[i]; | ||
| 497 | |||
| 498 | Method method = MethodImpl.createMethodImpl(vm, this, | ||
| 499 | mi.methodID, | ||
| 500 | mi.name, mi.signature, | ||
| 501 | null, | ||
| 502 | mi.modBits); | ||
| 503 | methods.add(method); | ||
| 504 | } | ||
| 505 | return methods; | ||
| 506 | } | ||
| 507 | |||
| 508 | /* | ||
| 509 | * Utility method used by subclasses to build lists of visible | ||
| 510 | * methods. | ||
| 511 | */ | ||
| 512 | void addToMethodMap(Map<String, Method> methodMap, List<Method> methodList) { | ||
| 513 | for (Method method : methodList) | ||
| 514 | methodMap.put(method.name().concat(method.signature()), method); | ||
| 515 | } | ||
| 516 | |||
| 517 | abstract void addVisibleMethods(Map<String, Method> methodMap); | ||
| 518 | |||
| 519 | public List<Method> visibleMethods() { | ||
| 520 | /* | ||
| 521 | * Build a collection of all visible methods. The hash | ||
| 522 | * map allows us to do this efficiently by keying on the | ||
| 523 | * concatenation of name and signature. | ||
| 524 | */ | ||
| 525 | Map<String, Method> map = new HashMap<String, Method>(); | ||
| 526 | addVisibleMethods(map); | ||
| 527 | |||
| 528 | /* | ||
| 529 | * ... but the hash map destroys order. Methods should be | ||
| 530 | * returned in a sensible order, as they are in allMethods(). | ||
| 531 | * So, start over with allMethods() and use the hash map | ||
| 532 | * to filter that ordered collection. | ||
| 533 | */ | ||
| 534 | List<Method> list = allMethods(); | ||
| 535 | list.retainAll(map.values()); | ||
| 536 | return list; | ||
| 537 | } | ||
| 538 | |||
| 539 | abstract public List<Method> allMethods(); | ||
| 540 | |||
| 541 | public List<Method> methodsByName(String name) { | ||
| 542 | List<Method> methods = visibleMethods(); | ||
| 543 | ArrayList<Method> retList = new ArrayList<Method>(methods.size()); | ||
| 544 | for (Method candidate : methods) { | ||
| 545 | if (candidate.name().equals(name)) { | ||
| 546 | retList.add(candidate); | ||
| 547 | } | ||
| 548 | } | ||
| 549 | retList.trimToSize(); | ||
| 550 | return retList; | ||
| 551 | } | ||
| 552 | |||
| 553 | public List<Method> methodsByName(String name, String signature) { | ||
| 554 | List<Method> methods = visibleMethods(); | ||
| 555 | ArrayList<Method> retList = new ArrayList<Method>(methods.size()); | ||
| 556 | for (Method candidate : methods) { | ||
| 557 | if (candidate.name().equals(name) && | ||
| 558 | candidate.signature().equals(signature)) { | ||
| 559 | retList.add(candidate); | ||
| 560 | } | ||
| 561 | } | ||
| 562 | retList.trimToSize(); | ||
| 563 | return retList; | ||
| 564 | } | ||
| 565 | |||
| 566 | List<InterfaceType> getInterfaces() { | ||
| 567 | InterfaceTypeImpl[] intfs; | ||
| 568 | try { | ||
| 569 | intfs = JDWP.ReferenceType.Interfaces. | ||
| 570 | process(vm, this).interfaces; | ||
| 571 | } catch (JDWPException exc) { | ||
| 572 | throw exc.toJDIException(); | ||
| 573 | } | ||
| 574 | return Arrays.asList((InterfaceType[])intfs); | ||
| 575 | } | ||
| 576 | |||
| 577 | public List<ReferenceType> nestedTypes() { | ||
| 578 | List all = vm.allClasses(); | ||
| 579 | List<ReferenceType> nested = new ArrayList<ReferenceType>(); | ||
| 580 | String outername = name(); | ||
| 581 | int outerlen = outername.length(); | ||
| 582 | Iterator iter = all.iterator(); | ||
| 583 | while (iter.hasNext()) { | ||
| 584 | ReferenceType refType = (ReferenceType)iter.next(); | ||
| 585 | String name = refType.name(); | ||
| 586 | int len = name.length(); | ||
| 587 | /* The separator is historically '$' but could also be '#' */ | ||
| 588 | if ( len > outerlen && name.startsWith(outername) ) { | ||
| 589 | char c = name.charAt(outerlen); | ||
| 590 | if ( c =='$' || c== '#' ) { | ||
| 591 | nested.add(refType); | ||
| 592 | } | ||
| 593 | } | ||
| 594 | } | ||
| 595 | return nested; | ||
| 596 | } | ||
| 597 | |||
| 598 | public Value getValue(Field sig) { | ||
| 599 | List<Field> list = new ArrayList<Field>(1); | ||
| 600 | list.add(sig); | ||
| 601 | Map map = getValues(list); | ||
| 602 | return(Value)map.get(sig); | ||
| 603 | } | ||
| 604 | |||
| 605 | |||
| 606 | void validateFieldAccess(Field field) { | ||
| 607 | /* | ||
| 608 | * Field must be in this object's class, a superclass, or | ||
| 609 | * implemented interface | ||
| 610 | */ | ||
| 611 | ReferenceTypeImpl declType = (ReferenceTypeImpl)field.declaringType(); | ||
| 612 | if (!declType.isAssignableFrom(this)) { | ||
| 613 | throw new IllegalArgumentException("Invalid field"); | ||
| 614 | } | ||
| 615 | } | ||
| 616 | |||
| 617 | void validateFieldSet(Field field) { | ||
| 618 | validateFieldAccess(field); | ||
| 619 | if (field.isFinal()) { | ||
| 620 | throw new IllegalArgumentException("Cannot set value of final field"); | ||
| 621 | } | ||
| 622 | } | ||
| 623 | |||
| 624 | /** | ||
| 625 | * Returns a map of field values | ||
| 626 | */ | ||
| 627 | public Map<Field,Value> getValues(List<? extends Field> theFields) { | ||
| 628 | validateMirrors(theFields); | ||
| 629 | |||
| 630 | int size = theFields.size(); | ||
| 631 | JDWP.ReferenceType.GetValues.Field[] queryFields = | ||
| 632 | new JDWP.ReferenceType.GetValues.Field[size]; | ||
| 633 | |||
| 634 | for (int i=0; i<size; i++) { | ||
| 635 | FieldImpl field = (FieldImpl)theFields.get(i); | ||
| 636 | |||
| 637 | validateFieldAccess(field); | ||
| 638 | |||
| 639 | // Do more validation specific to ReferenceType field getting | ||
| 640 | if (!field.isStatic()) { | ||
| 641 | throw new IllegalArgumentException( | ||
| 642 | "Attempt to use non-static field with ReferenceType"); | ||
| 643 | } | ||
| 644 | queryFields[i] = new JDWP.ReferenceType.GetValues.Field( | ||
| 645 | field.ref()); | ||
| 646 | } | ||
| 647 | |||
| 648 | Map<Field, Value> map = new HashMap<Field, Value>(size); | ||
| 649 | |||
| 650 | ValueImpl[] values; | ||
| 651 | try { | ||
| 652 | values = JDWP.ReferenceType.GetValues. | ||
| 653 | process(vm, this, queryFields).values; | ||
| 654 | } catch (JDWPException exc) { | ||
| 655 | throw exc.toJDIException(); | ||
| 656 | } | ||
| 657 | |||
| 658 | if (size != values.length) { | ||
| 659 | throw new InternalException( | ||
| 660 | "Wrong number of values returned from target VM"); | ||
| 661 | } | ||
| 662 | for (int i=0; i<size; i++) { | ||
| 663 | FieldImpl field = (FieldImpl)theFields.get(i); | ||
| 664 | map.put(field, values[i]); | ||
| 665 | } | ||
| 666 | |||
| 667 | return map; | ||
| 668 | } | ||
| 669 | |||
| 670 | public ClassObjectReference classObject() { | ||
| 671 | if (classObject == null) { | ||
| 672 | // Are classObjects unique for an Object, or | ||
| 673 | // created each time? Is this spec'ed? | ||
| 674 | synchronized(this) { | ||
| 675 | if (classObject == null) { | ||
| 676 | try { | ||
| 677 | classObject = JDWP.ReferenceType.ClassObject. | ||
| 678 | process(vm, this).classObject; | ||
| 679 | } catch (JDWPException exc) { | ||
| 680 | throw exc.toJDIException(); | ||
| 681 | } | ||
| 682 | } | ||
| 683 | } | ||
| 684 | } | ||
| 685 | return classObject; | ||
| 686 | } | ||
| 687 | |||
| 688 | SDE.Stratum stratum(String stratumID) { | ||
| 689 | SDE sde = sourceDebugExtensionInfo(); | ||
| 690 | if (!sde.isValid()) { | ||
| 691 | sde = NO_SDE_INFO_MARK; | ||
| 692 | } | ||
| 693 | return sde.stratum(stratumID); | ||
| 694 | } | ||
| 695 | |||
| 696 | public String sourceName() throws AbsentInformationException { | ||
| 697 | return sourceNames(vm.getDefaultStratum()).get(0); | ||
| 698 | } | ||
| 699 | |||
| 700 | public List<String> sourceNames(String stratumID) | ||
| 701 | throws AbsentInformationException { | ||
| 702 | SDE.Stratum stratum = stratum(stratumID); | ||
| 703 | if (stratum.isJava()) { | ||
| 704 | List<String> result = new ArrayList<String>(1); | ||
| 705 | result.add(baseSourceName()); | ||
| 706 | return result; | ||
| 707 | } | ||
| 708 | return stratum.sourceNames(this); | ||
| 709 | } | ||
| 710 | |||
| 711 | public List<String> sourcePaths(String stratumID) | ||
| 712 | throws AbsentInformationException { | ||
| 713 | SDE.Stratum stratum = stratum(stratumID); | ||
| 714 | if (stratum.isJava()) { | ||
| 715 | List<String> result = new ArrayList<String>(1); | ||
| 716 | result.add(baseSourceDir() + baseSourceName()); | ||
| 717 | return result; | ||
| 718 | } | ||
| 719 | return stratum.sourcePaths(this); | ||
| 720 | } | ||
| 721 | |||
| 722 | String baseSourceName() throws AbsentInformationException { | ||
| 723 | String bsn = baseSourceName; | ||
| 724 | if (bsn == null) { | ||
| 725 | // Does not need synchronization, since worst-case | ||
| 726 | // static info is fetched twice | ||
| 727 | try { | ||
| 728 | bsn = JDWP.ReferenceType.SourceFile. | ||
| 729 | process(vm, this).sourceFile; | ||
| 730 | } catch (JDWPException exc) { | ||
| 731 | if (exc.errorCode() == JDWP.Error.ABSENT_INFORMATION) { | ||
| 732 | bsn = ABSENT_BASE_SOURCE_NAME; | ||
| 733 | } else { | ||
| 734 | throw exc.toJDIException(); | ||
| 735 | } | ||
| 736 | } | ||
| 737 | baseSourceName = bsn; | ||
| 738 | } | ||
| 739 | if (bsn == ABSENT_BASE_SOURCE_NAME) { | ||
| 740 | throw new AbsentInformationException(); | ||
| 741 | } | ||
| 742 | return bsn; | ||
| 743 | } | ||
| 744 | |||
| 745 | String baseSourcePath() throws AbsentInformationException { | ||
| 746 | String bsp = baseSourcePath; | ||
| 747 | if (bsp == null) { | ||
| 748 | bsp = baseSourceDir() + baseSourceName(); | ||
| 749 | baseSourcePath = bsp; | ||
| 750 | } | ||
| 751 | return bsp; | ||
| 752 | } | ||
| 753 | |||
| 754 | String baseSourceDir() { | ||
| 755 | if (baseSourceDir == null) { | ||
| 756 | String typeName = name(); | ||
| 757 | StringBuffer sb = new StringBuffer(typeName.length() + 10); | ||
| 758 | int index = 0; | ||
| 759 | int nextIndex; | ||
| 760 | |||
| 761 | while ((nextIndex = typeName.indexOf('.', index)) > 0) { | ||
| 762 | sb.append(typeName.substring(index, nextIndex)); | ||
| 763 | sb.append(java.io.File.separatorChar); | ||
| 764 | index = nextIndex + 1; | ||
| 765 | } | ||
| 766 | baseSourceDir = sb.toString(); | ||
| 767 | } | ||
| 768 | return baseSourceDir; | ||
| 769 | } | ||
| 770 | |||
| 771 | public String sourceDebugExtension() | ||
| 772 | throws AbsentInformationException { | ||
| 773 | if (!vm.canGetSourceDebugExtension()) { | ||
| 774 | throw new UnsupportedOperationException(); | ||
| 775 | } | ||
| 776 | SDE sde = sourceDebugExtensionInfo(); | ||
| 777 | if (sde == NO_SDE_INFO_MARK) { | ||
| 778 | throw new AbsentInformationException(); | ||
| 779 | } | ||
| 780 | return sde.sourceDebugExtension; | ||
| 781 | } | ||
| 782 | |||
| 783 | private SDE sourceDebugExtensionInfo() { | ||
| 784 | if (!vm.canGetSourceDebugExtension()) { | ||
| 785 | return NO_SDE_INFO_MARK; | ||
| 786 | } | ||
| 787 | SDE sde = (sdeRef == null) ? null : sdeRef.get(); | ||
| 788 | if (sde == null) { | ||
| 789 | String extension = null; | ||
| 790 | try { | ||
| 791 | extension = JDWP.ReferenceType.SourceDebugExtension. | ||
| 792 | process(vm, this).extension; | ||
| 793 | } catch (JDWPException exc) { | ||
| 794 | if (exc.errorCode() != JDWP.Error.ABSENT_INFORMATION) { | ||
| 795 | sdeRef = new SoftReference<SDE>(NO_SDE_INFO_MARK); | ||
| 796 | throw exc.toJDIException(); | ||
| 797 | } | ||
| 798 | } | ||
| 799 | if (extension == null) { | ||
| 800 | sde = NO_SDE_INFO_MARK; | ||
| 801 | } else { | ||
| 802 | sde = new SDE(extension); | ||
| 803 | } | ||
| 804 | sdeRef = new SoftReference<SDE>(sde); | ||
| 805 | } | ||
| 806 | return sde; | ||
| 807 | } | ||
| 808 | |||
| 809 | public List<String> availableStrata() { | ||
| 810 | SDE sde = sourceDebugExtensionInfo(); | ||
| 811 | if (sde.isValid()) { | ||
| 812 | return sde.availableStrata(); | ||
| 813 | } else { | ||
| 814 | List<String> strata = new ArrayList<String>(); | ||
| 815 | strata.add(SDE.BASE_STRATUM_NAME); | ||
| 816 | return strata; | ||
| 817 | } | ||
| 818 | } | ||
| 819 | |||
| 820 | /** | ||
| 821 | * Always returns non-null stratumID | ||
| 822 | */ | ||
| 823 | public String defaultStratum() { | ||
| 824 | SDE sdei = sourceDebugExtensionInfo(); | ||
| 825 | if (sdei.isValid()) { | ||
| 826 | return sdei.defaultStratumId; | ||
| 827 | } else { | ||
| 828 | return SDE.BASE_STRATUM_NAME; | ||
| 829 | } | ||
| 830 | } | ||
| 831 | |||
| 832 | public int modifiers() { | ||
| 833 | if (modifiers == -1) | ||
| 834 | getModifiers(); | ||
| 835 | |||
| 836 | return modifiers; | ||
| 837 | } | ||
| 838 | |||
| 839 | public List<Location> allLineLocations() | ||
| 840 | throws AbsentInformationException { | ||
| 841 | return allLineLocations(vm.getDefaultStratum(), null); | ||
| 842 | } | ||
| 843 | |||
| 844 | public List<Location> allLineLocations(String stratumID, String sourceName) | ||
| 845 | throws AbsentInformationException { | ||
| 846 | boolean someAbsent = false; // A method that should have info, didn't | ||
| 847 | SDE.Stratum stratum = stratum(stratumID); | ||
| 848 | List<Location> list = new ArrayList<Location>(); // location list | ||
| 849 | |||
| 850 | for (Iterator iter = methods().iterator(); iter.hasNext(); ) { | ||
| 851 | MethodImpl method = (MethodImpl)iter.next(); | ||
| 852 | try { | ||
| 853 | list.addAll( | ||
| 854 | method.allLineLocations(stratum, sourceName)); | ||
| 855 | } catch(AbsentInformationException exc) { | ||
| 856 | someAbsent = true; | ||
| 857 | } | ||
| 858 | } | ||
| 859 | |||
| 860 | // If we retrieved no line info, and at least one of the methods | ||
| 861 | // should have had some (as determined by an | ||
| 862 | // AbsentInformationException being thrown) then we rethrow | ||
| 863 | // the AbsentInformationException. | ||
| 864 | if (someAbsent && list.size() == 0) { | ||
| 865 | throw new AbsentInformationException(); | ||
| 866 | } | ||
| 867 | return list; | ||
| 868 | } | ||
| 869 | |||
| 870 | public List<Location> locationsOfLine(int lineNumber) | ||
| 871 | throws AbsentInformationException { | ||
| 872 | return locationsOfLine(vm.getDefaultStratum(), | ||
| 873 | null, | ||
| 874 | lineNumber); | ||
| 875 | } | ||
| 876 | |||
| 877 | public List<Location> locationsOfLine(String stratumID, | ||
| 878 | String sourceName, | ||
| 879 | int lineNumber) | ||
| 880 | throws AbsentInformationException { | ||
| 881 | // A method that should have info, didn't | ||
| 882 | boolean someAbsent = false; | ||
| 883 | // A method that should have info, did | ||
| 884 | boolean somePresent = false; | ||
| 885 | List<Method> methods = methods(); | ||
| 886 | SDE.Stratum stratum = stratum(stratumID); | ||
| 887 | |||
| 888 | List<Location> list = new ArrayList<Location>(); | ||
| 889 | |||
| 890 | Iterator iter = methods.iterator(); | ||
| 891 | while(iter.hasNext()) { | ||
| 892 | MethodImpl method = (MethodImpl)iter.next(); | ||
| 893 | // eliminate native and abstract to eliminate | ||
| 894 | // false positives | ||
| 895 | if (!method.isAbstract() && | ||
| 896 | !method.isNative()) { | ||
| 897 | try { | ||
| 898 | list.addAll( | ||
| 899 | method.locationsOfLine(stratum, | ||
| 900 | sourceName, | ||
| 901 | lineNumber)); | ||
| 902 | somePresent = true; | ||
| 903 | } catch(AbsentInformationException exc) { | ||
| 904 | someAbsent = true; | ||
| 905 | } | ||
| 906 | } | ||
| 907 | } | ||
| 908 | if (someAbsent && !somePresent) { | ||
| 909 | throw new AbsentInformationException(); | ||
| 910 | } | ||
| 911 | return list; | ||
| 912 | } | ||
| 913 | |||
| 914 | public List<ObjectReference> instances(long maxInstances) { | ||
| 915 | if (!vm.canGetInstanceInfo()) { | ||
| 916 | throw new UnsupportedOperationException( | ||
| 917 | "target does not support getting instances"); | ||
| 918 | } | ||
| 919 | |||
| 920 | if (maxInstances < 0) { | ||
| 921 | throw new IllegalArgumentException("maxInstances is less than zero: " | ||
| 922 | + maxInstances); | ||
| 923 | } | ||
| 924 | int intMax = (maxInstances > Integer.MAX_VALUE)? | ||
| 925 | Integer.MAX_VALUE: (int)maxInstances; | ||
| 926 | // JDWP can't currently handle more than this (in mustang) | ||
| 927 | |||
| 928 | try { | ||
| 929 | return Arrays.asList( | ||
| 930 | (ObjectReference[])JDWP.ReferenceType.Instances. | ||
| 931 | process(vm, this, intMax).instances); | ||
| 932 | } catch (JDWPException exc) { | ||
| 933 | throw exc.toJDIException(); | ||
| 934 | } | ||
| 935 | } | ||
| 936 | |||
| 937 | private void getClassFileVersion() { | ||
| 938 | if (!vm.canGetClassFileVersion()) { | ||
| 939 | throw new UnsupportedOperationException(); | ||
| 940 | } | ||
| 941 | JDWP.ReferenceType.ClassFileVersion classFileVersion; | ||
| 942 | if (versionNumberGotten) { | ||
| 943 | return; | ||
| 944 | } else { | ||
| 945 | try { | ||
| 946 | classFileVersion = JDWP.ReferenceType.ClassFileVersion.process(vm, this); | ||
| 947 | } catch (JDWPException exc) { | ||
| 948 | if (exc.errorCode() == JDWP.Error.ABSENT_INFORMATION) { | ||
| 949 | majorVersion = 0; | ||
| 950 | minorVersion = 0; | ||
| 951 | versionNumberGotten = true; | ||
| 952 | return; | ||
| 953 | } else { | ||
| 954 | throw exc.toJDIException(); | ||
| 955 | } | ||
| 956 | } | ||
| 957 | majorVersion = classFileVersion.majorVersion; | ||
| 958 | minorVersion = classFileVersion.minorVersion; | ||
| 959 | versionNumberGotten = true; | ||
| 960 | } | ||
| 961 | } | ||
| 962 | |||
| 963 | public int majorVersion() { | ||
| 964 | try { | ||
| 965 | getClassFileVersion(); | ||
| 966 | } catch (RuntimeException exc) { | ||
| 967 | throw exc; | ||
| 968 | } | ||
| 969 | return majorVersion; | ||
| 970 | } | ||
| 971 | |||
| 972 | public int minorVersion() { | ||
| 973 | try { | ||
| 974 | getClassFileVersion(); | ||
| 975 | } catch (RuntimeException exc) { | ||
| 976 | throw exc; | ||
| 977 | } | ||
| 978 | return minorVersion; | ||
| 979 | } | ||
| 980 | |||
| 981 | private void getConstantPoolInfo() { | ||
| 982 | JDWP.ReferenceType.ConstantPool jdwpCPool; | ||
| 983 | if (!vm.canGetConstantPool()) { | ||
| 984 | throw new UnsupportedOperationException(); | ||
| 985 | } | ||
| 986 | if (constantPoolInfoGotten) { | ||
| 987 | return; | ||
| 988 | } else { | ||
| 989 | try { | ||
| 990 | jdwpCPool = JDWP.ReferenceType.ConstantPool.process(vm, this); | ||
| 991 | } catch (JDWPException exc) { | ||
| 992 | if (exc.errorCode() == JDWP.Error.ABSENT_INFORMATION) { | ||
| 993 | constanPoolCount = 0; | ||
| 994 | constantPoolBytesRef = null; | ||
| 995 | constantPoolInfoGotten = true; | ||
| 996 | return; | ||
| 997 | } else { | ||
| 998 | throw exc.toJDIException(); | ||
| 999 | } | ||
| 1000 | } | ||
| 1001 | byte[] cpbytes; | ||
| 1002 | constanPoolCount = jdwpCPool.count; | ||
| 1003 | cpbytes = jdwpCPool.bytes; | ||
| 1004 | constantPoolBytesRef = new SoftReference<byte[]>(cpbytes); | ||
| 1005 | constantPoolInfoGotten = true; | ||
| 1006 | } | ||
| 1007 | } | ||
| 1008 | |||
| 1009 | public int constantPoolCount() { | ||
| 1010 | try { | ||
| 1011 | getConstantPoolInfo(); | ||
| 1012 | } catch (RuntimeException exc) { | ||
| 1013 | throw exc; | ||
| 1014 | } | ||
| 1015 | return constanPoolCount; | ||
| 1016 | } | ||
| 1017 | |||
| 1018 | public byte[] constantPool() { | ||
| 1019 | try { | ||
| 1020 | getConstantPoolInfo(); | ||
| 1021 | } catch (RuntimeException exc) { | ||
| 1022 | throw exc; | ||
| 1023 | } | ||
| 1024 | if (constantPoolBytesRef != null) { | ||
| 1025 | byte[] cpbytes = constantPoolBytesRef.get(); | ||
| 1026 | /* | ||
| 1027 | * Arrays are always modifiable, so it is a little unsafe | ||
| 1028 | * to return the cached bytecodes directly; instead, we | ||
| 1029 | * make a clone at the cost of using more memory. | ||
| 1030 | */ | ||
| 1031 | return cpbytes.clone(); | ||
| 1032 | } else { | ||
| 1033 | return null; | ||
| 1034 | } | ||
| 1035 | } | ||
| 1036 | |||
| 1037 | // Does not need synchronization, since worst-case | ||
| 1038 | // static info is fetched twice | ||
| 1039 | void getModifiers() { | ||
| 1040 | if (modifiers != -1) { | ||
| 1041 | return; | ||
| 1042 | } | ||
| 1043 | try { | ||
| 1044 | modifiers = JDWP.ReferenceType.Modifiers. | ||
| 1045 | process(vm, this).modBits; | ||
| 1046 | } catch (JDWPException exc) { | ||
| 1047 | throw exc.toJDIException(); | ||
| 1048 | } | ||
| 1049 | } | ||
| 1050 | |||
| 1051 | void decodeStatus(int status) { | ||
| 1052 | this.status = status; | ||
| 1053 | if ((status & JDWP.ClassStatus.PREPARED) != 0) { | ||
| 1054 | isPrepared = true; | ||
| 1055 | } | ||
| 1056 | } | ||
| 1057 | |||
| 1058 | void updateStatus() { | ||
| 1059 | try { | ||
| 1060 | decodeStatus(JDWP.ReferenceType.Status.process(vm, this).status); | ||
| 1061 | } catch (JDWPException exc) { | ||
| 1062 | throw exc.toJDIException(); | ||
| 1063 | } | ||
| 1064 | } | ||
| 1065 | |||
| 1066 | void markPrepared() { | ||
| 1067 | isPrepared = true; | ||
| 1068 | } | ||
| 1069 | |||
| 1070 | long ref() { | ||
| 1071 | return ref; | ||
| 1072 | } | ||
| 1073 | |||
| 1074 | int indexOf(Method method) { | ||
| 1075 | // Make sure they're all here - the obsolete method | ||
| 1076 | // won't be found and so will have index -1 | ||
| 1077 | return methods().indexOf(method); | ||
| 1078 | } | ||
| 1079 | |||
| 1080 | int indexOf(Field field) { | ||
| 1081 | // Make sure they're all here | ||
| 1082 | return fields().indexOf(field); | ||
| 1083 | } | ||
| 1084 | |||
| 1085 | /* | ||
| 1086 | * Return true if an instance of this type | ||
| 1087 | * can be assigned to a variable of the given type | ||
| 1088 | */ | ||
| 1089 | abstract boolean isAssignableTo(ReferenceType type); | ||
| 1090 | |||
| 1091 | boolean isAssignableFrom(ReferenceType type) { | ||
| 1092 | return ((ReferenceTypeImpl)type).isAssignableTo(this); | ||
| 1093 | } | ||
| 1094 | |||
| 1095 | boolean isAssignableFrom(ObjectReference object) { | ||
| 1096 | return object == null || | ||
| 1097 | isAssignableFrom(object.referenceType()); | ||
| 1098 | } | ||
| 1099 | |||
| 1100 | void setStatus(int status) { | ||
| 1101 | decodeStatus(status); | ||
| 1102 | } | ||
| 1103 | |||
| 1104 | void setSignature(String signature) { | ||
| 1105 | this.signature = signature; | ||
| 1106 | } | ||
| 1107 | |||
| 1108 | void setGenericSignature(String signature) { | ||
| 1109 | if (signature != null && signature.length() == 0) { | ||
| 1110 | this.genericSignature = null; | ||
| 1111 | } else{ | ||
| 1112 | this.genericSignature = signature; | ||
| 1113 | } | ||
| 1114 | this.genericSignatureGotten = true; | ||
| 1115 | } | ||
| 1116 | |||
| 1117 | private static boolean isPrimitiveArray(String signature) { | ||
| 1118 | int i = signature.lastIndexOf('['); | ||
| 1119 | /* | ||
| 1120 | * TO DO: Centralize JNI signature knowledge. | ||
| 1121 | * | ||
| 1122 | * Ref: | ||
| 1123 | * jdk1.4/doc/guide/jpda/jdi/com/sun/jdi/doc-files/signature.html | ||
| 1124 | */ | ||
| 1125 | boolean isPA; | ||
| 1126 | if (i < 0) { | ||
| 1127 | isPA = false; | ||
| 1128 | } else { | ||
| 1129 | char c = signature.charAt(i + 1); | ||
| 1130 | isPA = (c != 'L'); | ||
| 1131 | } | ||
| 1132 | return isPA; | ||
| 1133 | } | ||
| 1134 | |||
| 1135 | Type findType(String signature) throws ClassNotLoadedException { | ||
| 1136 | Type type; | ||
| 1137 | if (signature.length() == 1) { | ||
| 1138 | /* OTI FIX: Must be a primitive type or the void type */ | ||
| 1139 | char sig = signature.charAt(0); | ||
| 1140 | if (sig == 'V') { | ||
| 1141 | type = vm.theVoidType(); | ||
| 1142 | } else { | ||
| 1143 | type = vm.primitiveTypeMirror((byte)sig); | ||
| 1144 | } | ||
| 1145 | } else { | ||
| 1146 | // Must be a reference type. | ||
| 1147 | ClassLoaderReferenceImpl loader = | ||
| 1148 | (ClassLoaderReferenceImpl)classLoader(); | ||
| 1149 | if ((loader == null) || | ||
| 1150 | (isPrimitiveArray(signature)) //Work around 4450091 | ||
| 1151 | ) { | ||
| 1152 | // Caller wants type of boot class field | ||
| 1153 | type = vm.findBootType(signature); | ||
| 1154 | } else { | ||
| 1155 | // Caller wants type of non-boot class field | ||
| 1156 | type = loader.findType(signature); | ||
| 1157 | } | ||
| 1158 | } | ||
| 1159 | return type; | ||
| 1160 | } | ||
| 1161 | |||
| 1162 | String loaderString() { | ||
| 1163 | if (classLoader() != null) { | ||
| 1164 | return "loaded by " + classLoader().toString(); | ||
| 1165 | } else { | ||
| 1166 | return "no class loader"; | ||
| 1167 | } | ||
| 1168 | } | ||
| 1169 | |||
| 1170 | } | ||