J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1994-2006 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 sun.tools.java; |
| 27 | |
| 28 | import java.io.IOException; |
| 29 | import java.io.DataInputStream; |
| 30 | import java.io.OutputStream; |
| 31 | import java.io.DataOutputStream; |
| 32 | import java.io.ByteArrayInputStream; |
| 33 | import java.util.Hashtable; |
| 34 | import java.util.Vector; |
| 35 | import java.util.Enumeration; |
| 36 | |
| 37 | /** |
| 38 | * WARNING: The contents of this source file are not part of any |
| 39 | * supported API. Code that depends on them does so at its own risk: |
| 40 | * they are subject to change or removal without notice. |
| 41 | */ |
| 42 | public final |
| 43 | class BinaryClass extends ClassDefinition implements Constants { |
| 44 | BinaryConstantPool cpool; |
| 45 | BinaryAttribute atts; |
| 46 | Vector dependencies; |
| 47 | private boolean haveLoadedNested = false; |
| 48 | |
| 49 | /** |
| 50 | * Constructor |
| 51 | */ |
| 52 | public BinaryClass(Object source, ClassDeclaration declaration, int modifiers, |
| 53 | ClassDeclaration superClass, ClassDeclaration interfaces[], |
| 54 | Vector dependencies) { |
| 55 | super(source, 0, declaration, modifiers, null, null); |
| 56 | this.dependencies = dependencies; |
| 57 | this.superClass = superClass; |
| 58 | this.interfaces = interfaces; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Flags used by basicCheck() to avoid duplicate calls. |
| 63 | * (Part of fix for 4105911) |
| 64 | */ |
| 65 | private boolean basicCheckDone = false; |
| 66 | private boolean basicChecking = false; |
| 67 | |
| 68 | /** |
| 69 | * Ready a BinaryClass for further checking. Note that, until recently, |
| 70 | * BinaryClass relied on the default basicCheck() provided by |
| 71 | * ClassDefinition. The definition here has been added to ensure that |
| 72 | * the information generated by collectInheritedMethods is available |
| 73 | * for BinaryClasses. |
| 74 | */ |
| 75 | protected void basicCheck(Environment env) throws ClassNotFound { |
| 76 | if (tracing) env.dtEnter("BinaryClass.basicCheck: " + getName()); |
| 77 | |
| 78 | // We need to guard against duplicate calls to basicCheck(). They |
| 79 | // can lead to calling collectInheritedMethods() for this class |
| 80 | // from within a previous call to collectInheritedMethods() for |
| 81 | // this class. That is not allowed. |
| 82 | // (Part of fix for 4105911) |
| 83 | if (basicChecking || basicCheckDone) { |
| 84 | if (tracing) env.dtExit("BinaryClass.basicCheck: OK " + getName()); |
| 85 | return; |
| 86 | } |
| 87 | |
| 88 | if (tracing) env.dtEvent("BinaryClass.basicCheck: CHECKING " + getName()); |
| 89 | basicChecking = true; |
| 90 | |
| 91 | super.basicCheck(env); |
| 92 | |
| 93 | // Collect inheritance information. |
| 94 | if (doInheritanceChecks) { |
| 95 | collectInheritedMethods(env); |
| 96 | } |
| 97 | |
| 98 | basicCheckDone = true; |
| 99 | basicChecking = false; |
| 100 | if (tracing) env.dtExit("BinaryClass.basicCheck: " + getName()); |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Load a binary class |
| 105 | */ |
| 106 | public static BinaryClass load(Environment env, DataInputStream in) throws IOException { |
| 107 | return load(env, in, ~(ATT_CODE|ATT_ALLCLASSES)); |
| 108 | } |
| 109 | |
| 110 | public static BinaryClass load(Environment env, |
| 111 | DataInputStream in, int mask) throws IOException { |
| 112 | // Read the header |
| 113 | int magic = in.readInt(); // JVM 4.1 ClassFile.magic |
| 114 | if (magic != JAVA_MAGIC) { |
| 115 | throw new ClassFormatError("wrong magic: " + magic + ", expected " + JAVA_MAGIC); |
| 116 | } |
| 117 | int minor_version = in.readUnsignedShort(); // JVM 4.1 ClassFile.minor_version |
| 118 | int version = in.readUnsignedShort(); // JVM 4.1 ClassFile.major_version |
| 119 | if (version < JAVA_MIN_SUPPORTED_VERSION) { |
| 120 | throw new ClassFormatError( |
| 121 | sun.tools.javac.Main.getText( |
| 122 | "javac.err.version.too.old", |
| 123 | String.valueOf(version))); |
| 124 | } else if ((version > JAVA_MAX_SUPPORTED_VERSION) |
| 125 | || (version == JAVA_MAX_SUPPORTED_VERSION |
| 126 | && minor_version > JAVA_MAX_SUPPORTED_MINOR_VERSION)) { |
| 127 | throw new ClassFormatError( |
| 128 | sun.tools.javac.Main.getText( |
| 129 | "javac.err.version.too.recent", |
| 130 | version+"."+minor_version)); |
| 131 | } |
| 132 | |
| 133 | // Read the constant pool |
| 134 | BinaryConstantPool cpool = new BinaryConstantPool(in); |
| 135 | |
| 136 | // The dependencies of this class |
| 137 | Vector dependencies = cpool.getDependencies(env); |
| 138 | |
| 139 | // Read modifiers |
| 140 | int classMod = in.readUnsignedShort() & ACCM_CLASS; // JVM 4.1 ClassFile.access_flags |
| 141 | |
| 142 | // Read the class name - from JVM 4.1 ClassFile.this_class |
| 143 | ClassDeclaration classDecl = cpool.getDeclaration(env, in.readUnsignedShort()); |
| 144 | |
| 145 | // Read the super class name (may be null) - from JVM 4.1 ClassFile.super_class |
| 146 | ClassDeclaration superClassDecl = cpool.getDeclaration(env, in.readUnsignedShort()); |
| 147 | |
| 148 | // Read the interface names - from JVM 4.1 ClassFile.interfaces_count |
| 149 | ClassDeclaration interfaces[] = new ClassDeclaration[in.readUnsignedShort()]; |
| 150 | for (int i = 0 ; i < interfaces.length ; i++) { |
| 151 | // JVM 4.1 ClassFile.interfaces[] |
| 152 | interfaces[i] = cpool.getDeclaration(env, in.readUnsignedShort()); |
| 153 | } |
| 154 | |
| 155 | // Allocate the class |
| 156 | BinaryClass c = new BinaryClass(null, classDecl, classMod, superClassDecl, |
| 157 | interfaces, dependencies); |
| 158 | c.cpool = cpool; |
| 159 | |
| 160 | // Add any additional dependencies |
| 161 | c.addDependency(superClassDecl); |
| 162 | |
| 163 | // Read the fields |
| 164 | int nfields = in.readUnsignedShort(); // JVM 4.1 ClassFile.fields_count |
| 165 | for (int i = 0 ; i < nfields ; i++) { |
| 166 | // JVM 4.5 field_info.access_flags |
| 167 | int fieldMod = in.readUnsignedShort() & ACCM_FIELD; |
| 168 | // JVM 4.5 field_info.name_index |
| 169 | Identifier fieldName = cpool.getIdentifier(in.readUnsignedShort()); |
| 170 | // JVM 4.5 field_info.descriptor_index |
| 171 | Type fieldType = cpool.getType(in.readUnsignedShort()); |
| 172 | BinaryAttribute atts = BinaryAttribute.load(in, cpool, mask); |
| 173 | c.addMember(new BinaryMember(c, fieldMod, fieldType, fieldName, atts)); |
| 174 | } |
| 175 | |
| 176 | // Read the methods |
| 177 | int nmethods = in.readUnsignedShort(); // JVM 4.1 ClassFile.methods_count |
| 178 | for (int i = 0 ; i < nmethods ; i++) { |
| 179 | // JVM 4.6 method_info.access_flags |
| 180 | int methMod = in.readUnsignedShort() & ACCM_METHOD; |
| 181 | // JVM 4.6 method_info.name_index |
| 182 | Identifier methName = cpool.getIdentifier(in.readUnsignedShort()); |
| 183 | // JVM 4.6 method_info.descriptor_index |
| 184 | Type methType = cpool.getType(in.readUnsignedShort()); |
| 185 | BinaryAttribute atts = BinaryAttribute.load(in, cpool, mask); |
| 186 | c.addMember(new BinaryMember(c, methMod, methType, methName, atts)); |
| 187 | } |
| 188 | |
| 189 | // Read the class attributes |
| 190 | c.atts = BinaryAttribute.load(in, cpool, mask); |
| 191 | |
| 192 | // See if the SourceFile is known |
| 193 | byte data[] = c.getAttribute(idSourceFile); |
| 194 | if (data != null) { |
| 195 | DataInputStream dataStream = new DataInputStream(new ByteArrayInputStream(data)); |
| 196 | // JVM 4.7.2 SourceFile_attribute.sourcefile_index |
| 197 | c.source = cpool.getString(dataStream.readUnsignedShort()); |
| 198 | } |
| 199 | |
| 200 | // See if the Documentation is know |
| 201 | data = c.getAttribute(idDocumentation); |
| 202 | if (data != null) { |
| 203 | c.documentation = new DataInputStream(new ByteArrayInputStream(data)).readUTF(); |
| 204 | } |
| 205 | |
| 206 | // Was it compiled as deprecated? |
| 207 | if (c.getAttribute(idDeprecated) != null) { |
| 208 | c.modifiers |= M_DEPRECATED; |
| 209 | } |
| 210 | |
| 211 | // Was it synthesized by the compiler? |
| 212 | if (c.getAttribute(idSynthetic) != null) { |
| 213 | c.modifiers |= M_SYNTHETIC; |
| 214 | } |
| 215 | |
| 216 | return c; |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * Called when an environment ties a binary definition to a declaration. |
| 221 | * At this point, auxiliary definitions may be loaded. |
| 222 | */ |
| 223 | |
| 224 | public void loadNested(Environment env) { |
| 225 | loadNested(env, 0); |
| 226 | } |
| 227 | |
| 228 | public void loadNested(Environment env, int flags) { |
| 229 | // Sanity check. |
| 230 | if (haveLoadedNested) { |
| 231 | // Duplicate calls most likely should not occur, but they do |
| 232 | // in javap. Be tolerant of them for the time being. |
| 233 | // throw new CompilerError("multiple loadNested"); |
| 234 | if (tracing) env.dtEvent("loadNested: DUPLICATE CALL SKIPPED"); |
| 235 | return; |
| 236 | } |
| 237 | haveLoadedNested = true; |
| 238 | // Read class-nesting information. |
| 239 | try { |
| 240 | byte data[]; |
| 241 | data = getAttribute(idInnerClasses); |
| 242 | if (data != null) { |
| 243 | initInnerClasses(env, data, flags); |
| 244 | } |
| 245 | } catch (IOException ee) { |
| 246 | // The inner classes attribute is not well-formed. |
| 247 | // It may, for example, contain no data. Report this. |
| 248 | // We used to throw a CompilerError here (bug 4095108). |
| 249 | env.error(0, "malformed.attribute", getClassDeclaration(), |
| 250 | idInnerClasses); |
| 251 | if (tracing) |
| 252 | env.dtEvent("loadNested: MALFORMED ATTRIBUTE (InnerClasses)"); |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | private void initInnerClasses(Environment env, |
| 257 | byte data[], |
| 258 | int flags) throws IOException { |
| 259 | DataInputStream ds = new DataInputStream(new ByteArrayInputStream(data)); |
| 260 | int nrec = ds.readUnsignedShort(); // InnerClasses_attribute.number_of_classes |
| 261 | for (int i = 0; i < nrec; i++) { |
| 262 | // For each inner class name transformation, we have a record |
| 263 | // with the following fields: |
| 264 | // |
| 265 | // u2 inner_class_info_index; // CONSTANT_Class_info index |
| 266 | // u2 outer_class_info_index; // CONSTANT_Class_info index |
| 267 | // u2 inner_name_index; // CONSTANT_Utf8_info index |
| 268 | // u2 inner_class_access_flags; // access_flags bitmask |
| 269 | // |
| 270 | // The spec states that outer_class_info_index is 0 iff |
| 271 | // the inner class is not a member of its enclosing class (i.e. |
| 272 | // it is a local or anonymous class). The spec also states |
| 273 | // that if a class is anonymous then inner_name_index should |
| 274 | // be 0. |
| 275 | // |
| 276 | // Prior to jdk1.2, javac did not implement the spec. Instead |
| 277 | // it <em>always</em> set outer_class_info_index to the |
| 278 | // enclosing outer class and if the class was anonymous, |
| 279 | // it set inner_name_index to be the index of a CONSTANT_Utf8 |
| 280 | // entry containing the null string "" (idNull). This code is |
| 281 | // designed to handle either kind of class file. |
| 282 | // |
| 283 | // See also the compileClass() method in SourceClass.java. |
| 284 | |
| 285 | // Read in the inner_class_info |
| 286 | // InnerClasses_attribute.classes.inner_class_info_index |
| 287 | int inner_index = ds.readUnsignedShort(); |
| 288 | // could check for zero. |
| 289 | ClassDeclaration inner = cpool.getDeclaration(env, inner_index); |
| 290 | |
| 291 | // Read in the outer_class_info. Note that the index will be |
| 292 | // zero if the class is "not a member". |
| 293 | ClassDeclaration outer = null; |
| 294 | // InnerClasses_attribute.classes.outer_class_info_index |
| 295 | int outer_index = ds.readUnsignedShort(); |
| 296 | if (outer_index != 0) { |
| 297 | outer = cpool.getDeclaration(env, outer_index); |
| 298 | } |
| 299 | |
| 300 | // Read in the inner_name_index. This may be zero. An anonymous |
| 301 | // class will either have an inner_nm_index of zero (as the spec |
| 302 | // dictates) or it will have an inner_nm of idNull (for classes |
| 303 | // generated by pre-1.2 compilers). Handle both. |
| 304 | Identifier inner_nm = idNull; |
| 305 | // InnerClasses_attribute.classes.inner_name_index |
| 306 | int inner_nm_index = ds.readUnsignedShort(); |
| 307 | if (inner_nm_index != 0) { |
| 308 | inner_nm = Identifier.lookup(cpool.getString(inner_nm_index)); |
| 309 | } |
| 310 | |
| 311 | // Read in the modifiers for the inner class. |
| 312 | // InnerClasses_attribute.classes.inner_name_index |
| 313 | int mods = ds.readUnsignedShort(); |
| 314 | |
| 315 | // Is the class accessible? |
| 316 | // The old code checked for |
| 317 | // |
| 318 | // (!inner_nm.equals(idNull) && (mods & M_PRIVATE) == 0) |
| 319 | // |
| 320 | // which we will preserve to keep it working for class files |
| 321 | // generated by 1.1 compilers. In addition we check for |
| 322 | // |
| 323 | // (outer != null) |
| 324 | // |
| 325 | // as an additional check that only makes sense with 1.2 |
| 326 | // generated files. Note that it is entirely possible that |
| 327 | // the M_PRIVATE bit is always enough. We are being |
| 328 | // conservative here. |
| 329 | // |
| 330 | // The ATT_ALLCLASSES flag causes the M_PRIVATE modifier |
| 331 | // to be ignored, and is used by tools such as 'javap' that |
| 332 | // wish to examine all classes regardless of the normal access |
| 333 | // controls that apply during compilation. Note that anonymous |
| 334 | // and local classes are still not considered accessible, though |
| 335 | // named local classes in jdk1.1 may slip through. Note that |
| 336 | // this accessibility test is an optimization, and it is safe to |
| 337 | // err on the side of greater accessibility. |
| 338 | boolean accessible = |
| 339 | (outer != null) && |
| 340 | (!inner_nm.equals(idNull)) && |
| 341 | ((mods & M_PRIVATE) == 0 || |
| 342 | (flags & ATT_ALLCLASSES) != 0); |
| 343 | |
| 344 | // The reader should note that there has been a significant change |
| 345 | // in the way that the InnerClasses attribute is being handled. |
| 346 | // In particular, previously the compiler called initInner() for |
| 347 | // <em>every</em> inner class. Now the compiler does not call |
| 348 | // initInner() if the inner class is inaccessible. This means |
| 349 | // that inaccessible inner classes don't have any of the processing |
| 350 | // from initInner() done for them: fixing the access flags, |
| 351 | // setting outerClass, setting outerMember in their outerClass, |
| 352 | // etc. We believe this is fine: if the class is inaccessible |
| 353 | // and binary, then everyone who needs to see its internals |
| 354 | // has already been compiled. Hopefully. |
| 355 | |
| 356 | if (accessible) { |
| 357 | Identifier nm = |
| 358 | Identifier.lookupInner(outer.getName(), inner_nm); |
| 359 | |
| 360 | // Tell the type module about the nesting relation: |
| 361 | Type.tClass(nm); |
| 362 | |
| 363 | if (inner.equals(getClassDeclaration())) { |
| 364 | // The inner class in the record is this class. |
| 365 | try { |
| 366 | ClassDefinition outerClass = outer.getClassDefinition(env); |
| 367 | initInner(outerClass, mods); |
| 368 | } catch (ClassNotFound e) { |
| 369 | // report the error elsewhere |
| 370 | } |
| 371 | } else if (outer.equals(getClassDeclaration())) { |
| 372 | // The outer class in the record is this class. |
| 373 | try { |
| 374 | ClassDefinition innerClass = |
| 375 | inner.getClassDefinition(env); |
| 376 | initOuter(innerClass, mods); |
| 377 | } catch (ClassNotFound e) { |
| 378 | // report the error elsewhere |
| 379 | } |
| 380 | } |
| 381 | } |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | private void initInner(ClassDefinition outerClass, int mods) { |
| 386 | if (getOuterClass() != null) |
| 387 | return; // already done |
| 388 | /****** |
| 389 | // Maybe set static, protected, or private. |
| 390 | if ((modifiers & M_PUBLIC) != 0) |
| 391 | mods &= M_STATIC; |
| 392 | else |
| 393 | mods &= M_PRIVATE | M_PROTECTED | M_STATIC; |
| 394 | modifiers |= mods; |
| 395 | ******/ |
| 396 | // For an inner class, the class access may have been weakened |
| 397 | // from that originally declared the source. We must take the |
| 398 | // actual access permissions against which we check any source |
| 399 | // we are currently compiling from the InnerClasses attribute. |
| 400 | // We attempt to guard here against bogus combinations of modifiers. |
| 401 | if ((mods & M_PRIVATE) != 0) { |
| 402 | // Private cannot be combined with public or protected. |
| 403 | mods &= ~(M_PUBLIC | M_PROTECTED); |
| 404 | } else if ((mods & M_PROTECTED) != 0) { |
| 405 | // Protected cannot be combined with public. |
| 406 | mods &= ~M_PUBLIC; |
| 407 | } |
| 408 | if ((mods & M_INTERFACE) != 0) { |
| 409 | // All interfaces are implicitly abstract. |
| 410 | // All interfaces that are members of a type are implicitly static. |
| 411 | mods |= (M_ABSTRACT | M_STATIC); |
| 412 | } |
| 413 | if (outerClass.isInterface()) { |
| 414 | // All types that are members of interfaces are implicitly |
| 415 | // public and static. |
| 416 | mods |= (M_PUBLIC | M_STATIC); |
| 417 | mods &= ~(M_PRIVATE | M_PROTECTED); |
| 418 | } |
| 419 | modifiers = mods; |
| 420 | |
| 421 | setOuterClass(outerClass); |
| 422 | |
| 423 | for (MemberDefinition field = getFirstMember(); |
| 424 | field != null; |
| 425 | field = field.getNextMember()) { |
| 426 | if (field.isUplevelValue() |
| 427 | && outerClass.getType().equals(field.getType()) |
| 428 | && field.getName().toString().startsWith(prefixThis)) { |
| 429 | setOuterMember(field); |
| 430 | } |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | private void initOuter(ClassDefinition innerClass, int mods) { |
| 435 | if (innerClass instanceof BinaryClass) |
| 436 | ((BinaryClass)innerClass).initInner(this, mods); |
| 437 | addMember(new BinaryMember(innerClass)); |
| 438 | } |
| 439 | |
| 440 | /** |
| 441 | * Write the class out to a given stream. This function mirrors the loader. |
| 442 | */ |
| 443 | public void write(Environment env, OutputStream out) throws IOException { |
| 444 | DataOutputStream data = new DataOutputStream(out); |
| 445 | |
| 446 | // write out the header |
| 447 | data.writeInt(JAVA_MAGIC); |
| 448 | data.writeShort(env.getMinorVersion()); |
| 449 | data.writeShort(env.getMajorVersion()); |
| 450 | |
| 451 | // Write out the constant pool |
| 452 | cpool.write(data, env); |
| 453 | |
| 454 | // Write class information |
| 455 | data.writeShort(getModifiers() & ACCM_CLASS); |
| 456 | data.writeShort(cpool.indexObject(getClassDeclaration(), env)); |
| 457 | data.writeShort((getSuperClass() != null) |
| 458 | ? cpool.indexObject(getSuperClass(), env) : 0); |
| 459 | data.writeShort(interfaces.length); |
| 460 | for (int i = 0 ; i < interfaces.length ; i++) { |
| 461 | data.writeShort(cpool.indexObject(interfaces[i], env)); |
| 462 | } |
| 463 | |
| 464 | // count the fields and the methods |
| 465 | int fieldCount = 0, methodCount = 0; |
| 466 | for (MemberDefinition f = firstMember; f != null; f = f.getNextMember()) |
| 467 | if (f.isMethod()) methodCount++; else fieldCount++; |
| 468 | |
| 469 | // write out each the field count, and then each field |
| 470 | data.writeShort(fieldCount); |
| 471 | for (MemberDefinition f = firstMember; f != null; f = f.getNextMember()) { |
| 472 | if (!f.isMethod()) { |
| 473 | data.writeShort(f.getModifiers() & ACCM_FIELD); |
| 474 | String name = f.getName().toString(); |
| 475 | String signature = f.getType().getTypeSignature(); |
| 476 | data.writeShort(cpool.indexString(name, env)); |
| 477 | data.writeShort(cpool.indexString(signature, env)); |
| 478 | BinaryAttribute.write(((BinaryMember)f).atts, data, cpool, env); |
| 479 | } |
| 480 | } |
| 481 | |
| 482 | // write out each method count, and then each method |
| 483 | data.writeShort(methodCount); |
| 484 | for (MemberDefinition f = firstMember; f != null; f = f.getNextMember()) { |
| 485 | if (f.isMethod()) { |
| 486 | data.writeShort(f.getModifiers() & ACCM_METHOD); |
| 487 | String name = f.getName().toString(); |
| 488 | String signature = f.getType().getTypeSignature(); |
| 489 | data.writeShort(cpool.indexString(name, env)); |
| 490 | data.writeShort(cpool.indexString(signature, env)); |
| 491 | BinaryAttribute.write(((BinaryMember)f).atts, data, cpool, env); |
| 492 | } |
| 493 | } |
| 494 | |
| 495 | // write out the class attributes |
| 496 | BinaryAttribute.write(atts, data, cpool, env); |
| 497 | data.flush(); |
| 498 | } |
| 499 | |
| 500 | /** |
| 501 | * Get the dependencies |
| 502 | */ |
| 503 | public Enumeration getDependencies() { |
| 504 | return dependencies.elements(); |
| 505 | } |
| 506 | |
| 507 | /** |
| 508 | * Add a dependency |
| 509 | */ |
| 510 | public void addDependency(ClassDeclaration c) { |
| 511 | if ((c != null) && !dependencies.contains(c)) { |
| 512 | dependencies.addElement(c); |
| 513 | } |
| 514 | } |
| 515 | |
| 516 | /** |
| 517 | * Get the constant pool |
| 518 | */ |
| 519 | public BinaryConstantPool getConstants() { |
| 520 | return cpool; |
| 521 | } |
| 522 | |
| 523 | /** |
| 524 | * Get a class attribute |
| 525 | */ |
| 526 | public byte getAttribute(Identifier name)[] { |
| 527 | for (BinaryAttribute att = atts ; att != null ; att = att.next) { |
| 528 | if (att.name.equals(name)) { |
| 529 | return att.data; |
| 530 | } |
| 531 | } |
| 532 | return null; |
| 533 | } |
| 534 | } |