Mon, 21 Jan 2013 20:15:16 +0000
8005851: Remove support for synchronized interface methods
Summary: Synchronized default methods are no longer supported
Reviewed-by: jjg
duke@1 | 1 | /* |
mcimadamore@1239 | 2 | * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@1 | 4 | * |
duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
ohair@554 | 7 | * published by the Free Software Foundation. Oracle designates this |
duke@1 | 8 | * particular file as subject to the "Classpath" exception as provided |
ohair@554 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
duke@1 | 10 | * |
duke@1 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@1 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@1 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@1 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@1 | 15 | * accompanied this code). |
duke@1 | 16 | * |
duke@1 | 17 | * You should have received a copy of the GNU General Public License version |
duke@1 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@1 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@1 | 20 | * |
ohair@554 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
ohair@554 | 22 | * or visit www.oracle.com if you need additional information or have any |
ohair@554 | 23 | * questions. |
duke@1 | 24 | */ |
duke@1 | 25 | |
duke@1 | 26 | package com.sun.tools.javac.jvm; |
duke@1 | 27 | |
duke@1 | 28 | import java.io.*; |
duke@1 | 29 | import java.net.URI; |
jjg@400 | 30 | import java.net.URISyntaxException; |
duke@1 | 31 | import java.nio.CharBuffer; |
jjg@428 | 32 | import java.util.Arrays; |
duke@1 | 33 | import java.util.EnumSet; |
duke@1 | 34 | import java.util.HashMap; |
jjg@776 | 35 | import java.util.HashSet; |
duke@1 | 36 | import java.util.Map; |
duke@1 | 37 | import java.util.Set; |
duke@1 | 38 | import javax.lang.model.SourceVersion; |
duke@1 | 39 | import javax.tools.JavaFileObject; |
duke@1 | 40 | import javax.tools.JavaFileManager; |
jjg@256 | 41 | import javax.tools.JavaFileManager.Location; |
duke@1 | 42 | import javax.tools.StandardJavaFileManager; |
duke@1 | 43 | |
jjg@256 | 44 | import static javax.tools.StandardLocation.*; |
jjg@256 | 45 | |
duke@1 | 46 | import com.sun.tools.javac.comp.Annotate; |
duke@1 | 47 | import com.sun.tools.javac.code.*; |
jjg@776 | 48 | import com.sun.tools.javac.code.Lint.LintCategory; |
duke@1 | 49 | import com.sun.tools.javac.code.Type.*; |
duke@1 | 50 | import com.sun.tools.javac.code.Symbol.*; |
duke@1 | 51 | import com.sun.tools.javac.code.Symtab; |
jjg@50 | 52 | import com.sun.tools.javac.file.BaseFileObject; |
duke@1 | 53 | import com.sun.tools.javac.util.*; |
jjg@776 | 54 | import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition; |
duke@1 | 55 | |
duke@1 | 56 | import static com.sun.tools.javac.code.Flags.*; |
duke@1 | 57 | import static com.sun.tools.javac.code.Kinds.*; |
jjg@1374 | 58 | import static com.sun.tools.javac.code.TypeTag.CLASS; |
jjg@256 | 59 | import static com.sun.tools.javac.jvm.ClassFile.*; |
jjg@256 | 60 | import static com.sun.tools.javac.jvm.ClassFile.Version.*; |
duke@1 | 61 | |
jjg@1157 | 62 | import static com.sun.tools.javac.main.Option.*; |
jjg@700 | 63 | |
duke@1 | 64 | /** This class provides operations to read a classfile into an internal |
duke@1 | 65 | * representation. The internal representation is anchored in a |
duke@1 | 66 | * ClassSymbol which contains in its scope symbol representations |
duke@1 | 67 | * for all other definitions in the classfile. Top-level Classes themselves |
duke@1 | 68 | * appear as members of the scopes of PackageSymbols. |
duke@1 | 69 | * |
jjg@581 | 70 | * <p><b>This is NOT part of any supported API. |
jjg@581 | 71 | * If you write code that depends on this, you do so at your own risk. |
duke@1 | 72 | * This code and its internal interfaces are subject to change or |
duke@1 | 73 | * deletion without notice.</b> |
duke@1 | 74 | */ |
jjg@256 | 75 | public class ClassReader implements Completer { |
duke@1 | 76 | /** The context key for the class reader. */ |
duke@1 | 77 | protected static final Context.Key<ClassReader> classReaderKey = |
duke@1 | 78 | new Context.Key<ClassReader>(); |
duke@1 | 79 | |
ksrini@804 | 80 | public static final int INITIAL_BUFFER_SIZE = 0x0fff0; |
ksrini@804 | 81 | |
duke@1 | 82 | Annotate annotate; |
duke@1 | 83 | |
duke@1 | 84 | /** Switch: verbose output. |
duke@1 | 85 | */ |
duke@1 | 86 | boolean verbose; |
duke@1 | 87 | |
duke@1 | 88 | /** Switch: check class file for correct minor version, unrecognized |
duke@1 | 89 | * attributes. |
duke@1 | 90 | */ |
duke@1 | 91 | boolean checkClassFile; |
duke@1 | 92 | |
duke@1 | 93 | /** Switch: read constant pool and code sections. This switch is initially |
duke@1 | 94 | * set to false but can be turned on from outside. |
duke@1 | 95 | */ |
duke@1 | 96 | public boolean readAllOfClassFile = false; |
duke@1 | 97 | |
duke@1 | 98 | /** Switch: read GJ signature information. |
duke@1 | 99 | */ |
duke@1 | 100 | boolean allowGenerics; |
duke@1 | 101 | |
duke@1 | 102 | /** Switch: read varargs attribute. |
duke@1 | 103 | */ |
duke@1 | 104 | boolean allowVarargs; |
duke@1 | 105 | |
duke@1 | 106 | /** Switch: allow annotations. |
duke@1 | 107 | */ |
duke@1 | 108 | boolean allowAnnotations; |
duke@1 | 109 | |
mcimadamore@795 | 110 | /** Switch: allow simplified varargs. |
mcimadamore@795 | 111 | */ |
mcimadamore@795 | 112 | boolean allowSimplifiedVarargs; |
mcimadamore@795 | 113 | |
mcimadamore@795 | 114 | /** Lint option: warn about classfile issues |
jjg@776 | 115 | */ |
jjg@776 | 116 | boolean lintClassfile; |
jjg@776 | 117 | |
mcimadamore@1393 | 118 | /** Switch: allow default methods |
mcimadamore@1393 | 119 | */ |
mcimadamore@1393 | 120 | boolean allowDefaultMethods; |
mcimadamore@795 | 121 | |
duke@1 | 122 | /** Switch: preserve parameter names from the variable table. |
duke@1 | 123 | */ |
duke@1 | 124 | public boolean saveParameterNames; |
duke@1 | 125 | |
duke@1 | 126 | /** |
duke@1 | 127 | * Switch: cache completion failures unless -XDdev is used |
duke@1 | 128 | */ |
duke@1 | 129 | private boolean cacheCompletionFailure; |
duke@1 | 130 | |
duke@1 | 131 | /** |
duke@1 | 132 | * Switch: prefer source files instead of newer when both source |
duke@1 | 133 | * and class are available |
duke@1 | 134 | **/ |
duke@1 | 135 | public boolean preferSource; |
duke@1 | 136 | |
duke@1 | 137 | /** The log to use for verbose output |
duke@1 | 138 | */ |
duke@1 | 139 | final Log log; |
duke@1 | 140 | |
duke@1 | 141 | /** The symbol table. */ |
duke@1 | 142 | Symtab syms; |
duke@1 | 143 | |
duke@1 | 144 | Types types; |
duke@1 | 145 | |
duke@1 | 146 | /** The name table. */ |
jjg@113 | 147 | final Names names; |
duke@1 | 148 | |
duke@1 | 149 | /** Force a completion failure on this name |
duke@1 | 150 | */ |
duke@1 | 151 | final Name completionFailureName; |
duke@1 | 152 | |
duke@1 | 153 | /** Access to files |
duke@1 | 154 | */ |
duke@1 | 155 | private final JavaFileManager fileManager; |
duke@1 | 156 | |
jjg@12 | 157 | /** Factory for diagnostics |
jjg@12 | 158 | */ |
jjg@12 | 159 | JCDiagnostic.Factory diagFactory; |
jjg@12 | 160 | |
duke@1 | 161 | /** Can be reassigned from outside: |
duke@1 | 162 | * the completer to be used for ".java" files. If this remains unassigned |
duke@1 | 163 | * ".java" files will not be loaded. |
duke@1 | 164 | */ |
duke@1 | 165 | public SourceCompleter sourceCompleter = null; |
duke@1 | 166 | |
duke@1 | 167 | /** A hashtable containing the encountered top-level and member classes, |
duke@1 | 168 | * indexed by flat names. The table does not contain local classes. |
duke@1 | 169 | */ |
duke@1 | 170 | private Map<Name,ClassSymbol> classes; |
duke@1 | 171 | |
duke@1 | 172 | /** A hashtable containing the encountered packages. |
duke@1 | 173 | */ |
duke@1 | 174 | private Map<Name, PackageSymbol> packages; |
duke@1 | 175 | |
duke@1 | 176 | /** The current scope where type variables are entered. |
duke@1 | 177 | */ |
duke@1 | 178 | protected Scope typevars; |
duke@1 | 179 | |
duke@1 | 180 | /** The path name of the class file currently being read. |
duke@1 | 181 | */ |
duke@1 | 182 | protected JavaFileObject currentClassFile = null; |
duke@1 | 183 | |
duke@1 | 184 | /** The class or method currently being read. |
duke@1 | 185 | */ |
duke@1 | 186 | protected Symbol currentOwner = null; |
duke@1 | 187 | |
duke@1 | 188 | /** The buffer containing the currently read class file. |
duke@1 | 189 | */ |
ksrini@804 | 190 | byte[] buf = new byte[INITIAL_BUFFER_SIZE]; |
duke@1 | 191 | |
duke@1 | 192 | /** The current input pointer. |
duke@1 | 193 | */ |
ksrini@1309 | 194 | protected int bp; |
duke@1 | 195 | |
duke@1 | 196 | /** The objects of the constant pool. |
duke@1 | 197 | */ |
duke@1 | 198 | Object[] poolObj; |
duke@1 | 199 | |
duke@1 | 200 | /** For every constant pool entry, an index into buf where the |
duke@1 | 201 | * defining section of the entry is found. |
duke@1 | 202 | */ |
duke@1 | 203 | int[] poolIdx; |
duke@1 | 204 | |
jjg@256 | 205 | /** The major version number of the class file being read. */ |
jjg@256 | 206 | int majorVersion; |
jjg@256 | 207 | /** The minor version number of the class file being read. */ |
jjg@256 | 208 | int minorVersion; |
jjg@256 | 209 | |
jjg@428 | 210 | /** A table to hold the constant pool indices for method parameter |
jjg@428 | 211 | * names, as given in LocalVariableTable attributes. |
jjg@428 | 212 | */ |
jjg@428 | 213 | int[] parameterNameIndices; |
jjg@428 | 214 | |
jjg@428 | 215 | /** |
jjg@428 | 216 | * Whether or not any parameter names have been found. |
jjg@428 | 217 | */ |
jjg@428 | 218 | boolean haveParameterNameIndices; |
jjg@428 | 219 | |
jjg@1473 | 220 | /** Set this to false every time we start reading a method |
jjg@1473 | 221 | * and are saving parameter names. Set it to true when we see |
jjg@1473 | 222 | * MethodParameters, if it's set when we see a LocalVariableTable, |
jjg@1473 | 223 | * then we ignore the parameter names from the LVT. |
jjg@1473 | 224 | */ |
jjg@1473 | 225 | boolean sawMethodParameters; |
jjg@1473 | 226 | |
jjg@776 | 227 | /** |
jjg@776 | 228 | * The set of attribute names for which warnings have been generated for the current class |
jjg@776 | 229 | */ |
jjg@776 | 230 | Set<Name> warnedAttrs = new HashSet<Name>(); |
jjg@776 | 231 | |
duke@1 | 232 | /** Get the ClassReader instance for this invocation. */ |
duke@1 | 233 | public static ClassReader instance(Context context) { |
duke@1 | 234 | ClassReader instance = context.get(classReaderKey); |
duke@1 | 235 | if (instance == null) |
duke@1 | 236 | instance = new ClassReader(context, true); |
duke@1 | 237 | return instance; |
duke@1 | 238 | } |
duke@1 | 239 | |
duke@1 | 240 | /** Initialize classes and packages, treating this as the definitive classreader. */ |
duke@1 | 241 | public void init(Symtab syms) { |
duke@1 | 242 | init(syms, true); |
duke@1 | 243 | } |
duke@1 | 244 | |
duke@1 | 245 | /** Initialize classes and packages, optionally treating this as |
duke@1 | 246 | * the definitive classreader. |
duke@1 | 247 | */ |
duke@1 | 248 | private void init(Symtab syms, boolean definitive) { |
duke@1 | 249 | if (classes != null) return; |
duke@1 | 250 | |
duke@1 | 251 | if (definitive) { |
jjg@816 | 252 | Assert.check(packages == null || packages == syms.packages); |
duke@1 | 253 | packages = syms.packages; |
jjg@816 | 254 | Assert.check(classes == null || classes == syms.classes); |
duke@1 | 255 | classes = syms.classes; |
duke@1 | 256 | } else { |
duke@1 | 257 | packages = new HashMap<Name, PackageSymbol>(); |
duke@1 | 258 | classes = new HashMap<Name, ClassSymbol>(); |
duke@1 | 259 | } |
duke@1 | 260 | |
duke@1 | 261 | packages.put(names.empty, syms.rootPackage); |
duke@1 | 262 | syms.rootPackage.completer = this; |
duke@1 | 263 | syms.unnamedPackage.completer = this; |
duke@1 | 264 | } |
duke@1 | 265 | |
duke@1 | 266 | /** Construct a new class reader, optionally treated as the |
duke@1 | 267 | * definitive classreader for this invocation. |
duke@1 | 268 | */ |
duke@1 | 269 | protected ClassReader(Context context, boolean definitive) { |
duke@1 | 270 | if (definitive) context.put(classReaderKey, this); |
duke@1 | 271 | |
jjg@113 | 272 | names = Names.instance(context); |
duke@1 | 273 | syms = Symtab.instance(context); |
duke@1 | 274 | types = Types.instance(context); |
duke@1 | 275 | fileManager = context.get(JavaFileManager.class); |
duke@1 | 276 | if (fileManager == null) |
duke@1 | 277 | throw new AssertionError("FileManager initialization error"); |
jjg@12 | 278 | diagFactory = JCDiagnostic.Factory.instance(context); |
duke@1 | 279 | |
duke@1 | 280 | init(syms, definitive); |
duke@1 | 281 | log = Log.instance(context); |
duke@1 | 282 | |
duke@1 | 283 | Options options = Options.instance(context); |
duke@1 | 284 | annotate = Annotate.instance(context); |
jjg@700 | 285 | verbose = options.isSet(VERBOSE); |
jjg@700 | 286 | checkClassFile = options.isSet("-checkclassfile"); |
duke@1 | 287 | Source source = Source.instance(context); |
duke@1 | 288 | allowGenerics = source.allowGenerics(); |
duke@1 | 289 | allowVarargs = source.allowVarargs(); |
duke@1 | 290 | allowAnnotations = source.allowAnnotations(); |
mcimadamore@795 | 291 | allowSimplifiedVarargs = source.allowSimplifiedVarargs(); |
mcimadamore@1393 | 292 | allowDefaultMethods = source.allowDefaultMethods(); |
jjg@700 | 293 | saveParameterNames = options.isSet("save-parameter-names"); |
jjg@700 | 294 | cacheCompletionFailure = options.isUnset("dev"); |
duke@1 | 295 | preferSource = "source".equals(options.get("-Xprefer")); |
duke@1 | 296 | |
duke@1 | 297 | completionFailureName = |
jjg@700 | 298 | options.isSet("failcomplete") |
duke@1 | 299 | ? names.fromString(options.get("failcomplete")) |
duke@1 | 300 | : null; |
duke@1 | 301 | |
duke@1 | 302 | typevars = new Scope(syms.noSymbol); |
jjg@256 | 303 | |
jjg@776 | 304 | lintClassfile = Lint.instance(context).isEnabled(LintCategory.CLASSFILE); |
jjg@776 | 305 | |
jjg@256 | 306 | initAttributeReaders(); |
duke@1 | 307 | } |
duke@1 | 308 | |
duke@1 | 309 | /** Add member to class unless it is synthetic. |
duke@1 | 310 | */ |
duke@1 | 311 | private void enterMember(ClassSymbol c, Symbol sym) { |
duke@1 | 312 | if ((sym.flags_field & (SYNTHETIC|BRIDGE)) != SYNTHETIC) |
duke@1 | 313 | c.members_field.enter(sym); |
duke@1 | 314 | } |
duke@1 | 315 | |
duke@1 | 316 | /************************************************************************ |
duke@1 | 317 | * Error Diagnoses |
duke@1 | 318 | ***********************************************************************/ |
duke@1 | 319 | |
jjg@12 | 320 | |
jjg@12 | 321 | public class BadClassFile extends CompletionFailure { |
duke@1 | 322 | private static final long serialVersionUID = 0; |
duke@1 | 323 | |
jjg@12 | 324 | public BadClassFile(TypeSymbol sym, JavaFileObject file, JCDiagnostic diag) { |
jjg@12 | 325 | super(sym, createBadClassFileDiagnostic(file, diag)); |
duke@1 | 326 | } |
duke@1 | 327 | } |
jjg@12 | 328 | // where |
jjg@12 | 329 | private JCDiagnostic createBadClassFileDiagnostic(JavaFileObject file, JCDiagnostic diag) { |
jjg@12 | 330 | String key = (file.getKind() == JavaFileObject.Kind.SOURCE |
jjg@12 | 331 | ? "bad.source.file.header" : "bad.class.file.header"); |
jjg@12 | 332 | return diagFactory.fragment(key, file, diag); |
jjg@12 | 333 | } |
duke@1 | 334 | |
duke@1 | 335 | public BadClassFile badClassFile(String key, Object... args) { |
duke@1 | 336 | return new BadClassFile ( |
duke@1 | 337 | currentOwner.enclClass(), |
duke@1 | 338 | currentClassFile, |
jjg@12 | 339 | diagFactory.fragment(key, args)); |
duke@1 | 340 | } |
duke@1 | 341 | |
duke@1 | 342 | /************************************************************************ |
duke@1 | 343 | * Buffer Access |
duke@1 | 344 | ***********************************************************************/ |
duke@1 | 345 | |
duke@1 | 346 | /** Read a character. |
duke@1 | 347 | */ |
duke@1 | 348 | char nextChar() { |
duke@1 | 349 | return (char)(((buf[bp++] & 0xFF) << 8) + (buf[bp++] & 0xFF)); |
duke@1 | 350 | } |
duke@1 | 351 | |
jjg@308 | 352 | /** Read a byte. |
jjg@308 | 353 | */ |
jjg@308 | 354 | byte nextByte() { |
jjg@308 | 355 | return buf[bp++]; |
jjg@308 | 356 | } |
jjg@308 | 357 | |
duke@1 | 358 | /** Read an integer. |
duke@1 | 359 | */ |
duke@1 | 360 | int nextInt() { |
duke@1 | 361 | return |
duke@1 | 362 | ((buf[bp++] & 0xFF) << 24) + |
duke@1 | 363 | ((buf[bp++] & 0xFF) << 16) + |
duke@1 | 364 | ((buf[bp++] & 0xFF) << 8) + |
duke@1 | 365 | (buf[bp++] & 0xFF); |
duke@1 | 366 | } |
duke@1 | 367 | |
duke@1 | 368 | /** Extract a character at position bp from buf. |
duke@1 | 369 | */ |
duke@1 | 370 | char getChar(int bp) { |
duke@1 | 371 | return |
duke@1 | 372 | (char)(((buf[bp] & 0xFF) << 8) + (buf[bp+1] & 0xFF)); |
duke@1 | 373 | } |
duke@1 | 374 | |
duke@1 | 375 | /** Extract an integer at position bp from buf. |
duke@1 | 376 | */ |
duke@1 | 377 | int getInt(int bp) { |
duke@1 | 378 | return |
duke@1 | 379 | ((buf[bp] & 0xFF) << 24) + |
duke@1 | 380 | ((buf[bp+1] & 0xFF) << 16) + |
duke@1 | 381 | ((buf[bp+2] & 0xFF) << 8) + |
duke@1 | 382 | (buf[bp+3] & 0xFF); |
duke@1 | 383 | } |
duke@1 | 384 | |
duke@1 | 385 | |
duke@1 | 386 | /** Extract a long integer at position bp from buf. |
duke@1 | 387 | */ |
duke@1 | 388 | long getLong(int bp) { |
duke@1 | 389 | DataInputStream bufin = |
duke@1 | 390 | new DataInputStream(new ByteArrayInputStream(buf, bp, 8)); |
duke@1 | 391 | try { |
duke@1 | 392 | return bufin.readLong(); |
duke@1 | 393 | } catch (IOException e) { |
duke@1 | 394 | throw new AssertionError(e); |
duke@1 | 395 | } |
duke@1 | 396 | } |
duke@1 | 397 | |
duke@1 | 398 | /** Extract a float at position bp from buf. |
duke@1 | 399 | */ |
duke@1 | 400 | float getFloat(int bp) { |
duke@1 | 401 | DataInputStream bufin = |
duke@1 | 402 | new DataInputStream(new ByteArrayInputStream(buf, bp, 4)); |
duke@1 | 403 | try { |
duke@1 | 404 | return bufin.readFloat(); |
duke@1 | 405 | } catch (IOException e) { |
duke@1 | 406 | throw new AssertionError(e); |
duke@1 | 407 | } |
duke@1 | 408 | } |
duke@1 | 409 | |
duke@1 | 410 | /** Extract a double at position bp from buf. |
duke@1 | 411 | */ |
duke@1 | 412 | double getDouble(int bp) { |
duke@1 | 413 | DataInputStream bufin = |
duke@1 | 414 | new DataInputStream(new ByteArrayInputStream(buf, bp, 8)); |
duke@1 | 415 | try { |
duke@1 | 416 | return bufin.readDouble(); |
duke@1 | 417 | } catch (IOException e) { |
duke@1 | 418 | throw new AssertionError(e); |
duke@1 | 419 | } |
duke@1 | 420 | } |
duke@1 | 421 | |
duke@1 | 422 | /************************************************************************ |
duke@1 | 423 | * Constant Pool Access |
duke@1 | 424 | ***********************************************************************/ |
duke@1 | 425 | |
duke@1 | 426 | /** Index all constant pool entries, writing their start addresses into |
duke@1 | 427 | * poolIdx. |
duke@1 | 428 | */ |
duke@1 | 429 | void indexPool() { |
duke@1 | 430 | poolIdx = new int[nextChar()]; |
duke@1 | 431 | poolObj = new Object[poolIdx.length]; |
duke@1 | 432 | int i = 1; |
duke@1 | 433 | while (i < poolIdx.length) { |
duke@1 | 434 | poolIdx[i++] = bp; |
duke@1 | 435 | byte tag = buf[bp++]; |
duke@1 | 436 | switch (tag) { |
duke@1 | 437 | case CONSTANT_Utf8: case CONSTANT_Unicode: { |
duke@1 | 438 | int len = nextChar(); |
duke@1 | 439 | bp = bp + len; |
duke@1 | 440 | break; |
duke@1 | 441 | } |
duke@1 | 442 | case CONSTANT_Class: |
duke@1 | 443 | case CONSTANT_String: |
ksrini@826 | 444 | case CONSTANT_MethodType: |
duke@1 | 445 | bp = bp + 2; |
duke@1 | 446 | break; |
ksrini@826 | 447 | case CONSTANT_MethodHandle: |
ksrini@826 | 448 | bp = bp + 3; |
ksrini@826 | 449 | break; |
duke@1 | 450 | case CONSTANT_Fieldref: |
duke@1 | 451 | case CONSTANT_Methodref: |
duke@1 | 452 | case CONSTANT_InterfaceMethodref: |
duke@1 | 453 | case CONSTANT_NameandType: |
duke@1 | 454 | case CONSTANT_Integer: |
duke@1 | 455 | case CONSTANT_Float: |
ksrini@826 | 456 | case CONSTANT_InvokeDynamic: |
duke@1 | 457 | bp = bp + 4; |
duke@1 | 458 | break; |
duke@1 | 459 | case CONSTANT_Long: |
duke@1 | 460 | case CONSTANT_Double: |
duke@1 | 461 | bp = bp + 8; |
duke@1 | 462 | i++; |
duke@1 | 463 | break; |
duke@1 | 464 | default: |
duke@1 | 465 | throw badClassFile("bad.const.pool.tag.at", |
duke@1 | 466 | Byte.toString(tag), |
duke@1 | 467 | Integer.toString(bp -1)); |
duke@1 | 468 | } |
duke@1 | 469 | } |
duke@1 | 470 | } |
duke@1 | 471 | |
duke@1 | 472 | /** Read constant pool entry at start address i, use pool as a cache. |
duke@1 | 473 | */ |
duke@1 | 474 | Object readPool(int i) { |
duke@1 | 475 | Object result = poolObj[i]; |
duke@1 | 476 | if (result != null) return result; |
duke@1 | 477 | |
duke@1 | 478 | int index = poolIdx[i]; |
duke@1 | 479 | if (index == 0) return null; |
duke@1 | 480 | |
duke@1 | 481 | byte tag = buf[index]; |
duke@1 | 482 | switch (tag) { |
duke@1 | 483 | case CONSTANT_Utf8: |
duke@1 | 484 | poolObj[i] = names.fromUtf(buf, index + 3, getChar(index + 1)); |
duke@1 | 485 | break; |
duke@1 | 486 | case CONSTANT_Unicode: |
duke@1 | 487 | throw badClassFile("unicode.str.not.supported"); |
duke@1 | 488 | case CONSTANT_Class: |
duke@1 | 489 | poolObj[i] = readClassOrType(getChar(index + 1)); |
duke@1 | 490 | break; |
duke@1 | 491 | case CONSTANT_String: |
duke@1 | 492 | // FIXME: (footprint) do not use toString here |
duke@1 | 493 | poolObj[i] = readName(getChar(index + 1)).toString(); |
duke@1 | 494 | break; |
duke@1 | 495 | case CONSTANT_Fieldref: { |
duke@1 | 496 | ClassSymbol owner = readClassSymbol(getChar(index + 1)); |
duke@1 | 497 | NameAndType nt = (NameAndType)readPool(getChar(index + 3)); |
vromero@1452 | 498 | poolObj[i] = new VarSymbol(0, nt.name, nt.uniqueType.type, owner); |
duke@1 | 499 | break; |
duke@1 | 500 | } |
duke@1 | 501 | case CONSTANT_Methodref: |
duke@1 | 502 | case CONSTANT_InterfaceMethodref: { |
duke@1 | 503 | ClassSymbol owner = readClassSymbol(getChar(index + 1)); |
duke@1 | 504 | NameAndType nt = (NameAndType)readPool(getChar(index + 3)); |
vromero@1452 | 505 | poolObj[i] = new MethodSymbol(0, nt.name, nt.uniqueType.type, owner); |
duke@1 | 506 | break; |
duke@1 | 507 | } |
duke@1 | 508 | case CONSTANT_NameandType: |
duke@1 | 509 | poolObj[i] = new NameAndType( |
duke@1 | 510 | readName(getChar(index + 1)), |
vromero@1452 | 511 | readType(getChar(index + 3)), types); |
duke@1 | 512 | break; |
duke@1 | 513 | case CONSTANT_Integer: |
duke@1 | 514 | poolObj[i] = getInt(index + 1); |
duke@1 | 515 | break; |
duke@1 | 516 | case CONSTANT_Float: |
duke@1 | 517 | poolObj[i] = new Float(getFloat(index + 1)); |
duke@1 | 518 | break; |
duke@1 | 519 | case CONSTANT_Long: |
duke@1 | 520 | poolObj[i] = new Long(getLong(index + 1)); |
duke@1 | 521 | break; |
duke@1 | 522 | case CONSTANT_Double: |
duke@1 | 523 | poolObj[i] = new Double(getDouble(index + 1)); |
duke@1 | 524 | break; |
ksrini@826 | 525 | case CONSTANT_MethodHandle: |
ksrini@826 | 526 | skipBytes(4); |
ksrini@826 | 527 | break; |
ksrini@826 | 528 | case CONSTANT_MethodType: |
ksrini@826 | 529 | skipBytes(3); |
ksrini@826 | 530 | break; |
ksrini@826 | 531 | case CONSTANT_InvokeDynamic: |
ksrini@826 | 532 | skipBytes(5); |
ksrini@826 | 533 | break; |
duke@1 | 534 | default: |
duke@1 | 535 | throw badClassFile("bad.const.pool.tag", Byte.toString(tag)); |
duke@1 | 536 | } |
duke@1 | 537 | return poolObj[i]; |
duke@1 | 538 | } |
duke@1 | 539 | |
duke@1 | 540 | /** Read signature and convert to type. |
duke@1 | 541 | */ |
duke@1 | 542 | Type readType(int i) { |
duke@1 | 543 | int index = poolIdx[i]; |
duke@1 | 544 | return sigToType(buf, index + 3, getChar(index + 1)); |
duke@1 | 545 | } |
duke@1 | 546 | |
duke@1 | 547 | /** If name is an array type or class signature, return the |
duke@1 | 548 | * corresponding type; otherwise return a ClassSymbol with given name. |
duke@1 | 549 | */ |
duke@1 | 550 | Object readClassOrType(int i) { |
duke@1 | 551 | int index = poolIdx[i]; |
duke@1 | 552 | int len = getChar(index + 1); |
duke@1 | 553 | int start = index + 3; |
jjg@816 | 554 | Assert.check(buf[start] == '[' || buf[start + len - 1] != ';'); |
duke@1 | 555 | // by the above assertion, the following test can be |
duke@1 | 556 | // simplified to (buf[start] == '[') |
duke@1 | 557 | return (buf[start] == '[' || buf[start + len - 1] == ';') |
duke@1 | 558 | ? (Object)sigToType(buf, start, len) |
duke@1 | 559 | : (Object)enterClass(names.fromUtf(internalize(buf, start, |
duke@1 | 560 | len))); |
duke@1 | 561 | } |
duke@1 | 562 | |
duke@1 | 563 | /** Read signature and convert to type parameters. |
duke@1 | 564 | */ |
duke@1 | 565 | List<Type> readTypeParams(int i) { |
duke@1 | 566 | int index = poolIdx[i]; |
duke@1 | 567 | return sigToTypeParams(buf, index + 3, getChar(index + 1)); |
duke@1 | 568 | } |
duke@1 | 569 | |
duke@1 | 570 | /** Read class entry. |
duke@1 | 571 | */ |
duke@1 | 572 | ClassSymbol readClassSymbol(int i) { |
duke@1 | 573 | return (ClassSymbol) (readPool(i)); |
duke@1 | 574 | } |
duke@1 | 575 | |
duke@1 | 576 | /** Read name. |
duke@1 | 577 | */ |
duke@1 | 578 | Name readName(int i) { |
duke@1 | 579 | return (Name) (readPool(i)); |
duke@1 | 580 | } |
duke@1 | 581 | |
duke@1 | 582 | /************************************************************************ |
duke@1 | 583 | * Reading Types |
duke@1 | 584 | ***********************************************************************/ |
duke@1 | 585 | |
duke@1 | 586 | /** The unread portion of the currently read type is |
duke@1 | 587 | * signature[sigp..siglimit-1]. |
duke@1 | 588 | */ |
duke@1 | 589 | byte[] signature; |
duke@1 | 590 | int sigp; |
duke@1 | 591 | int siglimit; |
duke@1 | 592 | boolean sigEnterPhase = false; |
duke@1 | 593 | |
duke@1 | 594 | /** Convert signature to type, where signature is a byte array segment. |
duke@1 | 595 | */ |
duke@1 | 596 | Type sigToType(byte[] sig, int offset, int len) { |
duke@1 | 597 | signature = sig; |
duke@1 | 598 | sigp = offset; |
duke@1 | 599 | siglimit = offset + len; |
duke@1 | 600 | return sigToType(); |
duke@1 | 601 | } |
duke@1 | 602 | |
duke@1 | 603 | /** Convert signature to type, where signature is implicit. |
duke@1 | 604 | */ |
duke@1 | 605 | Type sigToType() { |
duke@1 | 606 | switch ((char) signature[sigp]) { |
duke@1 | 607 | case 'T': |
duke@1 | 608 | sigp++; |
duke@1 | 609 | int start = sigp; |
duke@1 | 610 | while (signature[sigp] != ';') sigp++; |
duke@1 | 611 | sigp++; |
duke@1 | 612 | return sigEnterPhase |
duke@1 | 613 | ? Type.noType |
duke@1 | 614 | : findTypeVar(names.fromUtf(signature, start, sigp - 1 - start)); |
duke@1 | 615 | case '+': { |
duke@1 | 616 | sigp++; |
duke@1 | 617 | Type t = sigToType(); |
duke@1 | 618 | return new WildcardType(t, BoundKind.EXTENDS, |
duke@1 | 619 | syms.boundClass); |
duke@1 | 620 | } |
duke@1 | 621 | case '*': |
duke@1 | 622 | sigp++; |
duke@1 | 623 | return new WildcardType(syms.objectType, BoundKind.UNBOUND, |
duke@1 | 624 | syms.boundClass); |
duke@1 | 625 | case '-': { |
duke@1 | 626 | sigp++; |
duke@1 | 627 | Type t = sigToType(); |
duke@1 | 628 | return new WildcardType(t, BoundKind.SUPER, |
duke@1 | 629 | syms.boundClass); |
duke@1 | 630 | } |
duke@1 | 631 | case 'B': |
duke@1 | 632 | sigp++; |
duke@1 | 633 | return syms.byteType; |
duke@1 | 634 | case 'C': |
duke@1 | 635 | sigp++; |
duke@1 | 636 | return syms.charType; |
duke@1 | 637 | case 'D': |
duke@1 | 638 | sigp++; |
duke@1 | 639 | return syms.doubleType; |
duke@1 | 640 | case 'F': |
duke@1 | 641 | sigp++; |
duke@1 | 642 | return syms.floatType; |
duke@1 | 643 | case 'I': |
duke@1 | 644 | sigp++; |
duke@1 | 645 | return syms.intType; |
duke@1 | 646 | case 'J': |
duke@1 | 647 | sigp++; |
duke@1 | 648 | return syms.longType; |
duke@1 | 649 | case 'L': |
duke@1 | 650 | { |
duke@1 | 651 | // int oldsigp = sigp; |
duke@1 | 652 | Type t = classSigToType(); |
duke@1 | 653 | if (sigp < siglimit && signature[sigp] == '.') |
duke@1 | 654 | throw badClassFile("deprecated inner class signature syntax " + |
duke@1 | 655 | "(please recompile from source)"); |
duke@1 | 656 | /* |
duke@1 | 657 | System.err.println(" decoded " + |
duke@1 | 658 | new String(signature, oldsigp, sigp-oldsigp) + |
duke@1 | 659 | " => " + t + " outer " + t.outer()); |
duke@1 | 660 | */ |
duke@1 | 661 | return t; |
duke@1 | 662 | } |
duke@1 | 663 | case 'S': |
duke@1 | 664 | sigp++; |
duke@1 | 665 | return syms.shortType; |
duke@1 | 666 | case 'V': |
duke@1 | 667 | sigp++; |
duke@1 | 668 | return syms.voidType; |
duke@1 | 669 | case 'Z': |
duke@1 | 670 | sigp++; |
duke@1 | 671 | return syms.booleanType; |
duke@1 | 672 | case '[': |
duke@1 | 673 | sigp++; |
duke@1 | 674 | return new ArrayType(sigToType(), syms.arrayClass); |
duke@1 | 675 | case '(': |
duke@1 | 676 | sigp++; |
duke@1 | 677 | List<Type> argtypes = sigToTypes(')'); |
duke@1 | 678 | Type restype = sigToType(); |
duke@1 | 679 | List<Type> thrown = List.nil(); |
duke@1 | 680 | while (signature[sigp] == '^') { |
duke@1 | 681 | sigp++; |
duke@1 | 682 | thrown = thrown.prepend(sigToType()); |
duke@1 | 683 | } |
duke@1 | 684 | return new MethodType(argtypes, |
duke@1 | 685 | restype, |
duke@1 | 686 | thrown.reverse(), |
duke@1 | 687 | syms.methodClass); |
duke@1 | 688 | case '<': |
duke@1 | 689 | typevars = typevars.dup(currentOwner); |
duke@1 | 690 | Type poly = new ForAll(sigToTypeParams(), sigToType()); |
duke@1 | 691 | typevars = typevars.leave(); |
duke@1 | 692 | return poly; |
duke@1 | 693 | default: |
duke@1 | 694 | throw badClassFile("bad.signature", |
duke@1 | 695 | Convert.utf2string(signature, sigp, 10)); |
duke@1 | 696 | } |
duke@1 | 697 | } |
duke@1 | 698 | |
duke@1 | 699 | byte[] signatureBuffer = new byte[0]; |
duke@1 | 700 | int sbp = 0; |
duke@1 | 701 | /** Convert class signature to type, where signature is implicit. |
duke@1 | 702 | */ |
duke@1 | 703 | Type classSigToType() { |
duke@1 | 704 | if (signature[sigp] != 'L') |
duke@1 | 705 | throw badClassFile("bad.class.signature", |
duke@1 | 706 | Convert.utf2string(signature, sigp, 10)); |
duke@1 | 707 | sigp++; |
duke@1 | 708 | Type outer = Type.noType; |
duke@1 | 709 | int startSbp = sbp; |
duke@1 | 710 | |
duke@1 | 711 | while (true) { |
duke@1 | 712 | final byte c = signature[sigp++]; |
duke@1 | 713 | switch (c) { |
duke@1 | 714 | |
duke@1 | 715 | case ';': { // end |
duke@1 | 716 | ClassSymbol t = enterClass(names.fromUtf(signatureBuffer, |
duke@1 | 717 | startSbp, |
duke@1 | 718 | sbp - startSbp)); |
duke@1 | 719 | if (outer == Type.noType) |
duke@1 | 720 | outer = t.erasure(types); |
duke@1 | 721 | else |
duke@1 | 722 | outer = new ClassType(outer, List.<Type>nil(), t); |
duke@1 | 723 | sbp = startSbp; |
duke@1 | 724 | return outer; |
duke@1 | 725 | } |
duke@1 | 726 | |
duke@1 | 727 | case '<': // generic arguments |
duke@1 | 728 | ClassSymbol t = enterClass(names.fromUtf(signatureBuffer, |
duke@1 | 729 | startSbp, |
duke@1 | 730 | sbp - startSbp)); |
duke@1 | 731 | outer = new ClassType(outer, sigToTypes('>'), t) { |
duke@1 | 732 | boolean completed = false; |
jjg@256 | 733 | @Override |
duke@1 | 734 | public Type getEnclosingType() { |
duke@1 | 735 | if (!completed) { |
duke@1 | 736 | completed = true; |
duke@1 | 737 | tsym.complete(); |
duke@1 | 738 | Type enclosingType = tsym.type.getEnclosingType(); |
duke@1 | 739 | if (enclosingType != Type.noType) { |
duke@1 | 740 | List<Type> typeArgs = |
duke@1 | 741 | super.getEnclosingType().allparams(); |
duke@1 | 742 | List<Type> typeParams = |
duke@1 | 743 | enclosingType.allparams(); |
duke@1 | 744 | if (typeParams.length() != typeArgs.length()) { |
duke@1 | 745 | // no "rare" types |
duke@1 | 746 | super.setEnclosingType(types.erasure(enclosingType)); |
duke@1 | 747 | } else { |
duke@1 | 748 | super.setEnclosingType(types.subst(enclosingType, |
duke@1 | 749 | typeParams, |
duke@1 | 750 | typeArgs)); |
duke@1 | 751 | } |
duke@1 | 752 | } else { |
duke@1 | 753 | super.setEnclosingType(Type.noType); |
duke@1 | 754 | } |
duke@1 | 755 | } |
duke@1 | 756 | return super.getEnclosingType(); |
duke@1 | 757 | } |
jjg@256 | 758 | @Override |
duke@1 | 759 | public void setEnclosingType(Type outer) { |
duke@1 | 760 | throw new UnsupportedOperationException(); |
duke@1 | 761 | } |
duke@1 | 762 | }; |
duke@1 | 763 | switch (signature[sigp++]) { |
duke@1 | 764 | case ';': |
duke@1 | 765 | if (sigp < signature.length && signature[sigp] == '.') { |
duke@1 | 766 | // support old-style GJC signatures |
duke@1 | 767 | // The signature produced was |
duke@1 | 768 | // Lfoo/Outer<Lfoo/X;>;.Lfoo/Outer$Inner<Lfoo/Y;>; |
duke@1 | 769 | // rather than say |
duke@1 | 770 | // Lfoo/Outer<Lfoo/X;>.Inner<Lfoo/Y;>; |
duke@1 | 771 | // so we skip past ".Lfoo/Outer$" |
duke@1 | 772 | sigp += (sbp - startSbp) + // "foo/Outer" |
duke@1 | 773 | 3; // ".L" and "$" |
duke@1 | 774 | signatureBuffer[sbp++] = (byte)'$'; |
duke@1 | 775 | break; |
duke@1 | 776 | } else { |
duke@1 | 777 | sbp = startSbp; |
duke@1 | 778 | return outer; |
duke@1 | 779 | } |
duke@1 | 780 | case '.': |
duke@1 | 781 | signatureBuffer[sbp++] = (byte)'$'; |
duke@1 | 782 | break; |
duke@1 | 783 | default: |
duke@1 | 784 | throw new AssertionError(signature[sigp-1]); |
duke@1 | 785 | } |
duke@1 | 786 | continue; |
duke@1 | 787 | |
duke@1 | 788 | case '.': |
duke@1 | 789 | signatureBuffer[sbp++] = (byte)'$'; |
duke@1 | 790 | continue; |
duke@1 | 791 | case '/': |
duke@1 | 792 | signatureBuffer[sbp++] = (byte)'.'; |
duke@1 | 793 | continue; |
duke@1 | 794 | default: |
duke@1 | 795 | signatureBuffer[sbp++] = c; |
duke@1 | 796 | continue; |
duke@1 | 797 | } |
duke@1 | 798 | } |
duke@1 | 799 | } |
duke@1 | 800 | |
duke@1 | 801 | /** Convert (implicit) signature to list of types |
duke@1 | 802 | * until `terminator' is encountered. |
duke@1 | 803 | */ |
duke@1 | 804 | List<Type> sigToTypes(char terminator) { |
duke@1 | 805 | List<Type> head = List.of(null); |
duke@1 | 806 | List<Type> tail = head; |
duke@1 | 807 | while (signature[sigp] != terminator) |
duke@1 | 808 | tail = tail.setTail(List.of(sigToType())); |
duke@1 | 809 | sigp++; |
duke@1 | 810 | return head.tail; |
duke@1 | 811 | } |
duke@1 | 812 | |
duke@1 | 813 | /** Convert signature to type parameters, where signature is a byte |
duke@1 | 814 | * array segment. |
duke@1 | 815 | */ |
duke@1 | 816 | List<Type> sigToTypeParams(byte[] sig, int offset, int len) { |
duke@1 | 817 | signature = sig; |
duke@1 | 818 | sigp = offset; |
duke@1 | 819 | siglimit = offset + len; |
duke@1 | 820 | return sigToTypeParams(); |
duke@1 | 821 | } |
duke@1 | 822 | |
duke@1 | 823 | /** Convert signature to type parameters, where signature is implicit. |
duke@1 | 824 | */ |
duke@1 | 825 | List<Type> sigToTypeParams() { |
duke@1 | 826 | List<Type> tvars = List.nil(); |
duke@1 | 827 | if (signature[sigp] == '<') { |
duke@1 | 828 | sigp++; |
duke@1 | 829 | int start = sigp; |
duke@1 | 830 | sigEnterPhase = true; |
duke@1 | 831 | while (signature[sigp] != '>') |
duke@1 | 832 | tvars = tvars.prepend(sigToTypeParam()); |
duke@1 | 833 | sigEnterPhase = false; |
duke@1 | 834 | sigp = start; |
duke@1 | 835 | while (signature[sigp] != '>') |
duke@1 | 836 | sigToTypeParam(); |
duke@1 | 837 | sigp++; |
duke@1 | 838 | } |
duke@1 | 839 | return tvars.reverse(); |
duke@1 | 840 | } |
duke@1 | 841 | |
duke@1 | 842 | /** Convert (implicit) signature to type parameter. |
duke@1 | 843 | */ |
duke@1 | 844 | Type sigToTypeParam() { |
duke@1 | 845 | int start = sigp; |
duke@1 | 846 | while (signature[sigp] != ':') sigp++; |
duke@1 | 847 | Name name = names.fromUtf(signature, start, sigp - start); |
duke@1 | 848 | TypeVar tvar; |
duke@1 | 849 | if (sigEnterPhase) { |
duke@1 | 850 | tvar = new TypeVar(name, currentOwner, syms.botType); |
duke@1 | 851 | typevars.enter(tvar.tsym); |
duke@1 | 852 | } else { |
duke@1 | 853 | tvar = (TypeVar)findTypeVar(name); |
duke@1 | 854 | } |
duke@1 | 855 | List<Type> bounds = List.nil(); |
mcimadamore@1436 | 856 | boolean allInterfaces = false; |
duke@1 | 857 | if (signature[sigp] == ':' && signature[sigp+1] == ':') { |
duke@1 | 858 | sigp++; |
mcimadamore@1436 | 859 | allInterfaces = true; |
duke@1 | 860 | } |
duke@1 | 861 | while (signature[sigp] == ':') { |
duke@1 | 862 | sigp++; |
duke@1 | 863 | bounds = bounds.prepend(sigToType()); |
duke@1 | 864 | } |
duke@1 | 865 | if (!sigEnterPhase) { |
mcimadamore@1436 | 866 | types.setBounds(tvar, bounds.reverse(), allInterfaces); |
duke@1 | 867 | } |
duke@1 | 868 | return tvar; |
duke@1 | 869 | } |
duke@1 | 870 | |
duke@1 | 871 | /** Find type variable with given name in `typevars' scope. |
duke@1 | 872 | */ |
duke@1 | 873 | Type findTypeVar(Name name) { |
duke@1 | 874 | Scope.Entry e = typevars.lookup(name); |
duke@1 | 875 | if (e.scope != null) { |
duke@1 | 876 | return e.sym.type; |
duke@1 | 877 | } else { |
duke@1 | 878 | if (readingClassAttr) { |
duke@1 | 879 | // While reading the class attribute, the supertypes |
duke@1 | 880 | // might refer to a type variable from an enclosing element |
duke@1 | 881 | // (method or class). |
duke@1 | 882 | // If the type variable is defined in the enclosing class, |
duke@1 | 883 | // we can actually find it in |
duke@1 | 884 | // currentOwner.owner.type.getTypeArguments() |
duke@1 | 885 | // However, until we have read the enclosing method attribute |
duke@1 | 886 | // we don't know for sure if this owner is correct. It could |
duke@1 | 887 | // be a method and there is no way to tell before reading the |
duke@1 | 888 | // enclosing method attribute. |
duke@1 | 889 | TypeVar t = new TypeVar(name, currentOwner, syms.botType); |
duke@1 | 890 | missingTypeVariables = missingTypeVariables.prepend(t); |
duke@1 | 891 | // System.err.println("Missing type var " + name); |
duke@1 | 892 | return t; |
duke@1 | 893 | } |
duke@1 | 894 | throw badClassFile("undecl.type.var", name); |
duke@1 | 895 | } |
duke@1 | 896 | } |
duke@1 | 897 | |
duke@1 | 898 | /************************************************************************ |
duke@1 | 899 | * Reading Attributes |
duke@1 | 900 | ***********************************************************************/ |
duke@1 | 901 | |
jjg@256 | 902 | protected enum AttributeKind { CLASS, MEMBER }; |
jjg@256 | 903 | protected abstract class AttributeReader { |
ksrini@1309 | 904 | protected AttributeReader(Name name, ClassFile.Version version, Set<AttributeKind> kinds) { |
jjg@256 | 905 | this.name = name; |
jjg@256 | 906 | this.version = version; |
jjg@256 | 907 | this.kinds = kinds; |
jjg@256 | 908 | } |
jjg@256 | 909 | |
ksrini@1309 | 910 | protected boolean accepts(AttributeKind kind) { |
jjg@776 | 911 | if (kinds.contains(kind)) { |
jjg@776 | 912 | if (majorVersion > version.major || (majorVersion == version.major && minorVersion >= version.minor)) |
jjg@776 | 913 | return true; |
jjg@776 | 914 | |
jjg@776 | 915 | if (lintClassfile && !warnedAttrs.contains(name)) { |
jjg@776 | 916 | JavaFileObject prev = log.useSource(currentClassFile); |
jjg@776 | 917 | try { |
jjg@776 | 918 | log.warning(LintCategory.CLASSFILE, (DiagnosticPosition) null, "future.attr", |
jjg@776 | 919 | name, version.major, version.minor, majorVersion, minorVersion); |
jjg@776 | 920 | } finally { |
jjg@776 | 921 | log.useSource(prev); |
jjg@776 | 922 | } |
jjg@776 | 923 | warnedAttrs.add(name); |
jjg@776 | 924 | } |
jjg@776 | 925 | } |
jjg@776 | 926 | return false; |
jjg@256 | 927 | } |
jjg@256 | 928 | |
ksrini@1309 | 929 | protected abstract void read(Symbol sym, int attrLen); |
jjg@256 | 930 | |
ksrini@1309 | 931 | protected final Name name; |
ksrini@1309 | 932 | protected final ClassFile.Version version; |
ksrini@1309 | 933 | protected final Set<AttributeKind> kinds; |
jjg@256 | 934 | } |
jjg@256 | 935 | |
jjg@256 | 936 | protected Set<AttributeKind> CLASS_ATTRIBUTE = |
jjg@256 | 937 | EnumSet.of(AttributeKind.CLASS); |
jjg@256 | 938 | protected Set<AttributeKind> MEMBER_ATTRIBUTE = |
jjg@256 | 939 | EnumSet.of(AttributeKind.MEMBER); |
jjg@256 | 940 | protected Set<AttributeKind> CLASS_OR_MEMBER_ATTRIBUTE = |
jjg@256 | 941 | EnumSet.of(AttributeKind.CLASS, AttributeKind.MEMBER); |
jjg@256 | 942 | |
jjg@256 | 943 | protected Map<Name, AttributeReader> attributeReaders = new HashMap<Name, AttributeReader>(); |
jjg@256 | 944 | |
jjg@776 | 945 | private void initAttributeReaders() { |
jjg@256 | 946 | AttributeReader[] readers = { |
jjg@256 | 947 | // v45.3 attributes |
jjg@256 | 948 | |
jjg@256 | 949 | new AttributeReader(names.Code, V45_3, MEMBER_ATTRIBUTE) { |
ksrini@1309 | 950 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 951 | if (readAllOfClassFile || saveParameterNames) |
jjg@256 | 952 | ((MethodSymbol)sym).code = readCode(sym); |
jjg@256 | 953 | else |
jjg@256 | 954 | bp = bp + attrLen; |
jjg@256 | 955 | } |
jjg@256 | 956 | }, |
jjg@256 | 957 | |
jjg@256 | 958 | new AttributeReader(names.ConstantValue, V45_3, MEMBER_ATTRIBUTE) { |
ksrini@1309 | 959 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 960 | Object v = readPool(nextChar()); |
jjg@256 | 961 | // Ignore ConstantValue attribute if field not final. |
jjg@256 | 962 | if ((sym.flags() & FINAL) != 0) |
jjg@256 | 963 | ((VarSymbol) sym).setData(v); |
jjg@256 | 964 | } |
jjg@256 | 965 | }, |
jjg@256 | 966 | |
jjg@256 | 967 | new AttributeReader(names.Deprecated, V45_3, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 968 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 969 | sym.flags_field |= DEPRECATED; |
jjg@256 | 970 | } |
jjg@256 | 971 | }, |
jjg@256 | 972 | |
jjg@256 | 973 | new AttributeReader(names.Exceptions, V45_3, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 974 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 975 | int nexceptions = nextChar(); |
jjg@256 | 976 | List<Type> thrown = List.nil(); |
jjg@256 | 977 | for (int j = 0; j < nexceptions; j++) |
jjg@256 | 978 | thrown = thrown.prepend(readClassSymbol(nextChar()).type); |
jjg@256 | 979 | if (sym.type.getThrownTypes().isEmpty()) |
jjg@256 | 980 | sym.type.asMethodType().thrown = thrown.reverse(); |
jjg@256 | 981 | } |
jjg@256 | 982 | }, |
jjg@256 | 983 | |
jjg@256 | 984 | new AttributeReader(names.InnerClasses, V45_3, CLASS_ATTRIBUTE) { |
ksrini@1309 | 985 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 986 | ClassSymbol c = (ClassSymbol) sym; |
jjg@256 | 987 | readInnerClasses(c); |
jjg@256 | 988 | } |
jjg@256 | 989 | }, |
jjg@256 | 990 | |
jjg@256 | 991 | new AttributeReader(names.LocalVariableTable, V45_3, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 992 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 993 | int newbp = bp + attrLen; |
jjg@1473 | 994 | if (saveParameterNames && !sawMethodParameters) { |
jjg@428 | 995 | // Pick up parameter names from the variable table. |
jjg@428 | 996 | // Parameter names are not explicitly identified as such, |
jjg@428 | 997 | // but all parameter name entries in the LocalVariableTable |
jjg@428 | 998 | // have a start_pc of 0. Therefore, we record the name |
jjg@428 | 999 | // indicies of all slots with a start_pc of zero in the |
jjg@428 | 1000 | // parameterNameIndicies array. |
jjg@428 | 1001 | // Note that this implicitly honors the JVMS spec that |
jjg@428 | 1002 | // there may be more than one LocalVariableTable, and that |
jjg@428 | 1003 | // there is no specified ordering for the entries. |
jjg@256 | 1004 | int numEntries = nextChar(); |
jjg@428 | 1005 | for (int i = 0; i < numEntries; i++) { |
jjg@256 | 1006 | int start_pc = nextChar(); |
jjg@256 | 1007 | int length = nextChar(); |
jjg@256 | 1008 | int nameIndex = nextChar(); |
jjg@256 | 1009 | int sigIndex = nextChar(); |
jjg@256 | 1010 | int register = nextChar(); |
jjg@428 | 1011 | if (start_pc == 0) { |
jjg@428 | 1012 | // ensure array large enough |
jjg@428 | 1013 | if (register >= parameterNameIndices.length) { |
jjg@428 | 1014 | int newSize = Math.max(register, parameterNameIndices.length + 8); |
jjg@428 | 1015 | parameterNameIndices = |
jjg@428 | 1016 | Arrays.copyOf(parameterNameIndices, newSize); |
jjg@256 | 1017 | } |
jjg@428 | 1018 | parameterNameIndices[register] = nameIndex; |
jjg@428 | 1019 | haveParameterNameIndices = true; |
jjg@256 | 1020 | } |
jjg@256 | 1021 | } |
jjg@256 | 1022 | } |
jjg@256 | 1023 | bp = newbp; |
jjg@256 | 1024 | } |
jjg@256 | 1025 | }, |
jjg@256 | 1026 | |
jjg@1473 | 1027 | new AttributeReader(names.MethodParameters, V52, MEMBER_ATTRIBUTE) { |
jjg@1473 | 1028 | protected void read(Symbol sym, int attrlen) { |
jjg@1473 | 1029 | int newbp = bp + attrlen; |
jjg@1473 | 1030 | if (saveParameterNames) { |
jjg@1473 | 1031 | sawMethodParameters = true; |
jjg@1473 | 1032 | int numEntries = nextByte(); |
jjg@1473 | 1033 | parameterNameIndices = new int[numEntries]; |
jjg@1473 | 1034 | haveParameterNameIndices = true; |
jjg@1473 | 1035 | for (int i = 0; i < numEntries; i++) { |
jjg@1473 | 1036 | int nameIndex = nextChar(); |
jjg@1473 | 1037 | int flags = nextInt(); |
jjg@1473 | 1038 | parameterNameIndices[i] = nameIndex; |
jjg@1473 | 1039 | } |
jjg@1473 | 1040 | } |
jjg@1473 | 1041 | bp = newbp; |
jjg@1473 | 1042 | } |
jjg@1473 | 1043 | }, |
jjg@1473 | 1044 | |
jjg@1473 | 1045 | |
jjg@256 | 1046 | new AttributeReader(names.SourceFile, V45_3, CLASS_ATTRIBUTE) { |
ksrini@1309 | 1047 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1048 | ClassSymbol c = (ClassSymbol) sym; |
jjg@256 | 1049 | Name n = readName(nextChar()); |
jjg@256 | 1050 | c.sourcefile = new SourceFileObject(n, c.flatname); |
ohrstrom@1384 | 1051 | // If the class is a toplevel class, originating from a Java source file, |
ohrstrom@1384 | 1052 | // but the class name does not match the file name, then it is |
ohrstrom@1384 | 1053 | // an auxiliary class. |
ohrstrom@1384 | 1054 | String sn = n.toString(); |
ohrstrom@1384 | 1055 | if (c.owner.kind == Kinds.PCK && |
ohrstrom@1384 | 1056 | sn.endsWith(".java") && |
ohrstrom@1384 | 1057 | !sn.equals(c.name.toString()+".java")) { |
ohrstrom@1384 | 1058 | c.flags_field |= AUXILIARY; |
ohrstrom@1384 | 1059 | } |
jjg@256 | 1060 | } |
jjg@256 | 1061 | }, |
jjg@256 | 1062 | |
jjg@256 | 1063 | new AttributeReader(names.Synthetic, V45_3, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1064 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1065 | // bridge methods are visible when generics not enabled |
jjg@256 | 1066 | if (allowGenerics || (sym.flags_field & BRIDGE) == 0) |
jjg@256 | 1067 | sym.flags_field |= SYNTHETIC; |
jjg@256 | 1068 | } |
jjg@256 | 1069 | }, |
jjg@256 | 1070 | |
jjg@256 | 1071 | // standard v49 attributes |
jjg@256 | 1072 | |
jjg@256 | 1073 | new AttributeReader(names.EnclosingMethod, V49, CLASS_ATTRIBUTE) { |
ksrini@1309 | 1074 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1075 | int newbp = bp + attrLen; |
jjg@256 | 1076 | readEnclosingMethodAttr(sym); |
jjg@256 | 1077 | bp = newbp; |
jjg@256 | 1078 | } |
jjg@256 | 1079 | }, |
jjg@256 | 1080 | |
jjg@256 | 1081 | new AttributeReader(names.Signature, V49, CLASS_OR_MEMBER_ATTRIBUTE) { |
jjg@256 | 1082 | @Override |
ksrini@1309 | 1083 | protected boolean accepts(AttributeKind kind) { |
jjg@256 | 1084 | return super.accepts(kind) && allowGenerics; |
jjg@256 | 1085 | } |
jjg@256 | 1086 | |
ksrini@1309 | 1087 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1088 | if (sym.kind == TYP) { |
jjg@256 | 1089 | ClassSymbol c = (ClassSymbol) sym; |
jjg@256 | 1090 | readingClassAttr = true; |
jjg@256 | 1091 | try { |
jjg@256 | 1092 | ClassType ct1 = (ClassType)c.type; |
jjg@816 | 1093 | Assert.check(c == currentOwner); |
jjg@256 | 1094 | ct1.typarams_field = readTypeParams(nextChar()); |
jjg@256 | 1095 | ct1.supertype_field = sigToType(); |
jjg@256 | 1096 | ListBuffer<Type> is = new ListBuffer<Type>(); |
jjg@256 | 1097 | while (sigp != siglimit) is.append(sigToType()); |
jjg@256 | 1098 | ct1.interfaces_field = is.toList(); |
jjg@256 | 1099 | } finally { |
jjg@256 | 1100 | readingClassAttr = false; |
jjg@256 | 1101 | } |
jjg@256 | 1102 | } else { |
jjg@256 | 1103 | List<Type> thrown = sym.type.getThrownTypes(); |
jjg@256 | 1104 | sym.type = readType(nextChar()); |
jjg@256 | 1105 | //- System.err.println(" # " + sym.type); |
jjg@256 | 1106 | if (sym.kind == MTH && sym.type.getThrownTypes().isEmpty()) |
jjg@256 | 1107 | sym.type.asMethodType().thrown = thrown; |
jjg@256 | 1108 | |
jjg@256 | 1109 | } |
jjg@256 | 1110 | } |
jjg@256 | 1111 | }, |
jjg@256 | 1112 | |
jjg@256 | 1113 | // v49 annotation attributes |
jjg@256 | 1114 | |
jjg@256 | 1115 | new AttributeReader(names.AnnotationDefault, V49, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1116 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1117 | attachAnnotationDefault(sym); |
jjg@256 | 1118 | } |
jjg@256 | 1119 | }, |
jjg@256 | 1120 | |
jjg@256 | 1121 | new AttributeReader(names.RuntimeInvisibleAnnotations, V49, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1122 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1123 | attachAnnotations(sym); |
jjg@256 | 1124 | } |
jjg@256 | 1125 | }, |
jjg@256 | 1126 | |
jjg@256 | 1127 | new AttributeReader(names.RuntimeInvisibleParameterAnnotations, V49, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1128 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1129 | attachParameterAnnotations(sym); |
jjg@256 | 1130 | } |
jjg@256 | 1131 | }, |
jjg@256 | 1132 | |
jjg@256 | 1133 | new AttributeReader(names.RuntimeVisibleAnnotations, V49, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1134 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1135 | attachAnnotations(sym); |
jjg@256 | 1136 | } |
jjg@256 | 1137 | }, |
jjg@256 | 1138 | |
jjg@256 | 1139 | new AttributeReader(names.RuntimeVisibleParameterAnnotations, V49, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1140 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1141 | attachParameterAnnotations(sym); |
jjg@256 | 1142 | } |
jjg@256 | 1143 | }, |
jjg@256 | 1144 | |
jjg@256 | 1145 | // additional "legacy" v49 attributes, superceded by flags |
jjg@256 | 1146 | |
jjg@256 | 1147 | new AttributeReader(names.Annotation, V49, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1148 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1149 | if (allowAnnotations) |
jjg@256 | 1150 | sym.flags_field |= ANNOTATION; |
jjg@256 | 1151 | } |
jjg@256 | 1152 | }, |
jjg@256 | 1153 | |
jjg@256 | 1154 | new AttributeReader(names.Bridge, V49, MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1155 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1156 | sym.flags_field |= BRIDGE; |
jjg@256 | 1157 | if (!allowGenerics) |
jjg@256 | 1158 | sym.flags_field &= ~SYNTHETIC; |
jjg@256 | 1159 | } |
jjg@256 | 1160 | }, |
jjg@256 | 1161 | |
jjg@256 | 1162 | new AttributeReader(names.Enum, V49, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1163 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1164 | sym.flags_field |= ENUM; |
jjg@256 | 1165 | } |
jjg@256 | 1166 | }, |
jjg@256 | 1167 | |
jjg@256 | 1168 | new AttributeReader(names.Varargs, V49, CLASS_OR_MEMBER_ATTRIBUTE) { |
ksrini@1309 | 1169 | protected void read(Symbol sym, int attrLen) { |
jjg@256 | 1170 | if (allowVarargs) |
jjg@256 | 1171 | sym.flags_field |= VARARGS; |
jjg@256 | 1172 | } |
jjg@308 | 1173 | }, |
jjg@308 | 1174 | |
jjg@256 | 1175 | // The following attributes for a Code attribute are not currently handled |
jjg@256 | 1176 | // StackMapTable |
jjg@256 | 1177 | // SourceDebugExtension |
jjg@256 | 1178 | // LineNumberTable |
jjg@256 | 1179 | // LocalVariableTypeTable |
jjg@256 | 1180 | }; |
jjg@256 | 1181 | |
jjg@256 | 1182 | for (AttributeReader r: readers) |
jjg@256 | 1183 | attributeReaders.put(r.name, r); |
jjg@256 | 1184 | } |
jjg@256 | 1185 | |
duke@1 | 1186 | /** Report unrecognized attribute. |
duke@1 | 1187 | */ |
duke@1 | 1188 | void unrecognized(Name attrName) { |
duke@1 | 1189 | if (checkClassFile) |
duke@1 | 1190 | printCCF("ccf.unrecognized.attribute", attrName); |
duke@1 | 1191 | } |
duke@1 | 1192 | |
jjg@256 | 1193 | |
duke@1 | 1194 | |
ksrini@1309 | 1195 | protected void readEnclosingMethodAttr(Symbol sym) { |
duke@1 | 1196 | // sym is a nested class with an "Enclosing Method" attribute |
duke@1 | 1197 | // remove sym from it's current owners scope and place it in |
duke@1 | 1198 | // the scope specified by the attribute |
duke@1 | 1199 | sym.owner.members().remove(sym); |
duke@1 | 1200 | ClassSymbol self = (ClassSymbol)sym; |
duke@1 | 1201 | ClassSymbol c = readClassSymbol(nextChar()); |
duke@1 | 1202 | NameAndType nt = (NameAndType)readPool(nextChar()); |
duke@1 | 1203 | |
jjg@952 | 1204 | if (c.members_field == null) |
jjg@952 | 1205 | throw badClassFile("bad.enclosing.class", self, c); |
jjg@952 | 1206 | |
duke@1 | 1207 | MethodSymbol m = findMethod(nt, c.members_field, self.flags()); |
duke@1 | 1208 | if (nt != null && m == null) |
duke@1 | 1209 | throw badClassFile("bad.enclosing.method", self); |
duke@1 | 1210 | |
duke@1 | 1211 | self.name = simpleBinaryName(self.flatname, c.flatname) ; |
duke@1 | 1212 | self.owner = m != null ? m : c; |
jjg@113 | 1213 | if (self.name.isEmpty()) |
darcy@515 | 1214 | self.fullname = names.empty; |
duke@1 | 1215 | else |
duke@1 | 1216 | self.fullname = ClassSymbol.formFullName(self.name, self.owner); |
duke@1 | 1217 | |
duke@1 | 1218 | if (m != null) { |
duke@1 | 1219 | ((ClassType)sym.type).setEnclosingType(m.type); |
duke@1 | 1220 | } else if ((self.flags_field & STATIC) == 0) { |
duke@1 | 1221 | ((ClassType)sym.type).setEnclosingType(c.type); |
duke@1 | 1222 | } else { |
duke@1 | 1223 | ((ClassType)sym.type).setEnclosingType(Type.noType); |
duke@1 | 1224 | } |
duke@1 | 1225 | enterTypevars(self); |
duke@1 | 1226 | if (!missingTypeVariables.isEmpty()) { |
duke@1 | 1227 | ListBuffer<Type> typeVars = new ListBuffer<Type>(); |
duke@1 | 1228 | for (Type typevar : missingTypeVariables) { |
duke@1 | 1229 | typeVars.append(findTypeVar(typevar.tsym.name)); |
duke@1 | 1230 | } |
duke@1 | 1231 | foundTypeVariables = typeVars.toList(); |
duke@1 | 1232 | } else { |
duke@1 | 1233 | foundTypeVariables = List.nil(); |
duke@1 | 1234 | } |
duke@1 | 1235 | } |
duke@1 | 1236 | |
duke@1 | 1237 | // See java.lang.Class |
duke@1 | 1238 | private Name simpleBinaryName(Name self, Name enclosing) { |
duke@1 | 1239 | String simpleBinaryName = self.toString().substring(enclosing.toString().length()); |
duke@1 | 1240 | if (simpleBinaryName.length() < 1 || simpleBinaryName.charAt(0) != '$') |
duke@1 | 1241 | throw badClassFile("bad.enclosing.method", self); |
duke@1 | 1242 | int index = 1; |
duke@1 | 1243 | while (index < simpleBinaryName.length() && |
duke@1 | 1244 | isAsciiDigit(simpleBinaryName.charAt(index))) |
duke@1 | 1245 | index++; |
duke@1 | 1246 | return names.fromString(simpleBinaryName.substring(index)); |
duke@1 | 1247 | } |
duke@1 | 1248 | |
duke@1 | 1249 | private MethodSymbol findMethod(NameAndType nt, Scope scope, long flags) { |
duke@1 | 1250 | if (nt == null) |
duke@1 | 1251 | return null; |
duke@1 | 1252 | |
vromero@1452 | 1253 | MethodType type = nt.uniqueType.type.asMethodType(); |
duke@1 | 1254 | |
duke@1 | 1255 | for (Scope.Entry e = scope.lookup(nt.name); e.scope != null; e = e.next()) |
duke@1 | 1256 | if (e.sym.kind == MTH && isSameBinaryType(e.sym.type.asMethodType(), type)) |
duke@1 | 1257 | return (MethodSymbol)e.sym; |
duke@1 | 1258 | |
duke@1 | 1259 | if (nt.name != names.init) |
duke@1 | 1260 | // not a constructor |
duke@1 | 1261 | return null; |
duke@1 | 1262 | if ((flags & INTERFACE) != 0) |
duke@1 | 1263 | // no enclosing instance |
duke@1 | 1264 | return null; |
vromero@1452 | 1265 | if (nt.uniqueType.type.getParameterTypes().isEmpty()) |
duke@1 | 1266 | // no parameters |
duke@1 | 1267 | return null; |
duke@1 | 1268 | |
duke@1 | 1269 | // A constructor of an inner class. |
duke@1 | 1270 | // Remove the first argument (the enclosing instance) |
vromero@1452 | 1271 | nt.setType(new MethodType(nt.uniqueType.type.getParameterTypes().tail, |
vromero@1452 | 1272 | nt.uniqueType.type.getReturnType(), |
vromero@1452 | 1273 | nt.uniqueType.type.getThrownTypes(), |
vromero@1452 | 1274 | syms.methodClass)); |
duke@1 | 1275 | // Try searching again |
duke@1 | 1276 | return findMethod(nt, scope, flags); |
duke@1 | 1277 | } |
duke@1 | 1278 | |
duke@1 | 1279 | /** Similar to Types.isSameType but avoids completion */ |
duke@1 | 1280 | private boolean isSameBinaryType(MethodType mt1, MethodType mt2) { |
duke@1 | 1281 | List<Type> types1 = types.erasure(mt1.getParameterTypes()) |
duke@1 | 1282 | .prepend(types.erasure(mt1.getReturnType())); |
duke@1 | 1283 | List<Type> types2 = mt2.getParameterTypes().prepend(mt2.getReturnType()); |
duke@1 | 1284 | while (!types1.isEmpty() && !types2.isEmpty()) { |
duke@1 | 1285 | if (types1.head.tsym != types2.head.tsym) |
duke@1 | 1286 | return false; |
duke@1 | 1287 | types1 = types1.tail; |
duke@1 | 1288 | types2 = types2.tail; |
duke@1 | 1289 | } |
duke@1 | 1290 | return types1.isEmpty() && types2.isEmpty(); |
duke@1 | 1291 | } |
duke@1 | 1292 | |
duke@1 | 1293 | /** |
duke@1 | 1294 | * Character.isDigit answers <tt>true</tt> to some non-ascii |
duke@1 | 1295 | * digits. This one does not. <b>copied from java.lang.Class</b> |
duke@1 | 1296 | */ |
duke@1 | 1297 | private static boolean isAsciiDigit(char c) { |
duke@1 | 1298 | return '0' <= c && c <= '9'; |
duke@1 | 1299 | } |
duke@1 | 1300 | |
duke@1 | 1301 | /** Read member attributes. |
duke@1 | 1302 | */ |
duke@1 | 1303 | void readMemberAttrs(Symbol sym) { |
jjg@256 | 1304 | readAttrs(sym, AttributeKind.MEMBER); |
jjg@256 | 1305 | } |
jjg@256 | 1306 | |
jjg@256 | 1307 | void readAttrs(Symbol sym, AttributeKind kind) { |
duke@1 | 1308 | char ac = nextChar(); |
duke@1 | 1309 | for (int i = 0; i < ac; i++) { |
duke@1 | 1310 | Name attrName = readName(nextChar()); |
duke@1 | 1311 | int attrLen = nextInt(); |
jjg@256 | 1312 | AttributeReader r = attributeReaders.get(attrName); |
jjg@256 | 1313 | if (r != null && r.accepts(kind)) |
jjg@256 | 1314 | r.read(sym, attrLen); |
jjg@256 | 1315 | else { |
jjg@256 | 1316 | unrecognized(attrName); |
jjg@256 | 1317 | bp = bp + attrLen; |
jjg@256 | 1318 | } |
duke@1 | 1319 | } |
duke@1 | 1320 | } |
duke@1 | 1321 | |
duke@1 | 1322 | private boolean readingClassAttr = false; |
duke@1 | 1323 | private List<Type> missingTypeVariables = List.nil(); |
duke@1 | 1324 | private List<Type> foundTypeVariables = List.nil(); |
duke@1 | 1325 | |
duke@1 | 1326 | /** Read class attributes. |
duke@1 | 1327 | */ |
duke@1 | 1328 | void readClassAttrs(ClassSymbol c) { |
jjg@256 | 1329 | readAttrs(c, AttributeKind.CLASS); |
duke@1 | 1330 | } |
duke@1 | 1331 | |
duke@1 | 1332 | /** Read code block. |
duke@1 | 1333 | */ |
duke@1 | 1334 | Code readCode(Symbol owner) { |
duke@1 | 1335 | nextChar(); // max_stack |
duke@1 | 1336 | nextChar(); // max_locals |
duke@1 | 1337 | final int code_length = nextInt(); |
duke@1 | 1338 | bp += code_length; |
duke@1 | 1339 | final char exception_table_length = nextChar(); |
duke@1 | 1340 | bp += exception_table_length * 8; |
duke@1 | 1341 | readMemberAttrs(owner); |
duke@1 | 1342 | return null; |
duke@1 | 1343 | } |
duke@1 | 1344 | |
duke@1 | 1345 | /************************************************************************ |
duke@1 | 1346 | * Reading Java-language annotations |
duke@1 | 1347 | ***********************************************************************/ |
duke@1 | 1348 | |
duke@1 | 1349 | /** Attach annotations. |
duke@1 | 1350 | */ |
duke@1 | 1351 | void attachAnnotations(final Symbol sym) { |
duke@1 | 1352 | int numAttributes = nextChar(); |
duke@1 | 1353 | if (numAttributes != 0) { |
duke@1 | 1354 | ListBuffer<CompoundAnnotationProxy> proxies = |
duke@1 | 1355 | new ListBuffer<CompoundAnnotationProxy>(); |
duke@1 | 1356 | for (int i = 0; i<numAttributes; i++) { |
duke@1 | 1357 | CompoundAnnotationProxy proxy = readCompoundAnnotation(); |
duke@1 | 1358 | if (proxy.type.tsym == syms.proprietaryType.tsym) |
duke@1 | 1359 | sym.flags_field |= PROPRIETARY; |
duke@1 | 1360 | else |
duke@1 | 1361 | proxies.append(proxy); |
duke@1 | 1362 | } |
jfranck@1313 | 1363 | annotate.normal(new AnnotationCompleter(sym, proxies.toList())); |
duke@1 | 1364 | } |
duke@1 | 1365 | } |
duke@1 | 1366 | |
duke@1 | 1367 | /** Attach parameter annotations. |
duke@1 | 1368 | */ |
duke@1 | 1369 | void attachParameterAnnotations(final Symbol method) { |
duke@1 | 1370 | final MethodSymbol meth = (MethodSymbol)method; |
duke@1 | 1371 | int numParameters = buf[bp++] & 0xFF; |
duke@1 | 1372 | List<VarSymbol> parameters = meth.params(); |
duke@1 | 1373 | int pnum = 0; |
duke@1 | 1374 | while (parameters.tail != null) { |
duke@1 | 1375 | attachAnnotations(parameters.head); |
duke@1 | 1376 | parameters = parameters.tail; |
duke@1 | 1377 | pnum++; |
duke@1 | 1378 | } |
duke@1 | 1379 | if (pnum != numParameters) { |
duke@1 | 1380 | throw badClassFile("bad.runtime.invisible.param.annotations", meth); |
duke@1 | 1381 | } |
duke@1 | 1382 | } |
duke@1 | 1383 | |
duke@1 | 1384 | /** Attach the default value for an annotation element. |
duke@1 | 1385 | */ |
duke@1 | 1386 | void attachAnnotationDefault(final Symbol sym) { |
duke@1 | 1387 | final MethodSymbol meth = (MethodSymbol)sym; // only on methods |
duke@1 | 1388 | final Attribute value = readAttributeValue(); |
jfranck@1445 | 1389 | |
jfranck@1445 | 1390 | // The default value is set later during annotation. It might |
jfranck@1445 | 1391 | // be the case that the Symbol sym is annotated _after_ the |
jfranck@1445 | 1392 | // repeating instances that depend on this default value, |
jfranck@1445 | 1393 | // because of this we set an interim value that tells us this |
jfranck@1445 | 1394 | // element (most likely) has a default. |
jfranck@1445 | 1395 | // |
jfranck@1445 | 1396 | // Set interim value for now, reset just before we do this |
jfranck@1445 | 1397 | // properly at annotate time. |
jfranck@1445 | 1398 | meth.defaultValue = value; |
jfranck@1313 | 1399 | annotate.normal(new AnnotationDefaultCompleter(meth, value)); |
duke@1 | 1400 | } |
duke@1 | 1401 | |
duke@1 | 1402 | Type readTypeOrClassSymbol(int i) { |
duke@1 | 1403 | // support preliminary jsr175-format class files |
duke@1 | 1404 | if (buf[poolIdx[i]] == CONSTANT_Class) |
duke@1 | 1405 | return readClassSymbol(i).type; |
duke@1 | 1406 | return readType(i); |
duke@1 | 1407 | } |
duke@1 | 1408 | Type readEnumType(int i) { |
duke@1 | 1409 | // support preliminary jsr175-format class files |
duke@1 | 1410 | int index = poolIdx[i]; |
duke@1 | 1411 | int length = getChar(index + 1); |
duke@1 | 1412 | if (buf[index + length + 2] != ';') |
duke@1 | 1413 | return enterClass(readName(i)).type; |
duke@1 | 1414 | return readType(i); |
duke@1 | 1415 | } |
duke@1 | 1416 | |
duke@1 | 1417 | CompoundAnnotationProxy readCompoundAnnotation() { |
duke@1 | 1418 | Type t = readTypeOrClassSymbol(nextChar()); |
duke@1 | 1419 | int numFields = nextChar(); |
duke@1 | 1420 | ListBuffer<Pair<Name,Attribute>> pairs = |
duke@1 | 1421 | new ListBuffer<Pair<Name,Attribute>>(); |
duke@1 | 1422 | for (int i=0; i<numFields; i++) { |
duke@1 | 1423 | Name name = readName(nextChar()); |
duke@1 | 1424 | Attribute value = readAttributeValue(); |
duke@1 | 1425 | pairs.append(new Pair<Name,Attribute>(name, value)); |
duke@1 | 1426 | } |
duke@1 | 1427 | return new CompoundAnnotationProxy(t, pairs.toList()); |
duke@1 | 1428 | } |
duke@1 | 1429 | |
duke@1 | 1430 | Attribute readAttributeValue() { |
duke@1 | 1431 | char c = (char) buf[bp++]; |
duke@1 | 1432 | switch (c) { |
duke@1 | 1433 | case 'B': |
duke@1 | 1434 | return new Attribute.Constant(syms.byteType, readPool(nextChar())); |
duke@1 | 1435 | case 'C': |
duke@1 | 1436 | return new Attribute.Constant(syms.charType, readPool(nextChar())); |
duke@1 | 1437 | case 'D': |
duke@1 | 1438 | return new Attribute.Constant(syms.doubleType, readPool(nextChar())); |
duke@1 | 1439 | case 'F': |
duke@1 | 1440 | return new Attribute.Constant(syms.floatType, readPool(nextChar())); |
duke@1 | 1441 | case 'I': |
duke@1 | 1442 | return new Attribute.Constant(syms.intType, readPool(nextChar())); |
duke@1 | 1443 | case 'J': |
duke@1 | 1444 | return new Attribute.Constant(syms.longType, readPool(nextChar())); |
duke@1 | 1445 | case 'S': |
duke@1 | 1446 | return new Attribute.Constant(syms.shortType, readPool(nextChar())); |
duke@1 | 1447 | case 'Z': |
duke@1 | 1448 | return new Attribute.Constant(syms.booleanType, readPool(nextChar())); |
duke@1 | 1449 | case 's': |
duke@1 | 1450 | return new Attribute.Constant(syms.stringType, readPool(nextChar()).toString()); |
duke@1 | 1451 | case 'e': |
duke@1 | 1452 | return new EnumAttributeProxy(readEnumType(nextChar()), readName(nextChar())); |
duke@1 | 1453 | case 'c': |
duke@1 | 1454 | return new Attribute.Class(types, readTypeOrClassSymbol(nextChar())); |
duke@1 | 1455 | case '[': { |
duke@1 | 1456 | int n = nextChar(); |
duke@1 | 1457 | ListBuffer<Attribute> l = new ListBuffer<Attribute>(); |
duke@1 | 1458 | for (int i=0; i<n; i++) |
duke@1 | 1459 | l.append(readAttributeValue()); |
duke@1 | 1460 | return new ArrayAttributeProxy(l.toList()); |
duke@1 | 1461 | } |
duke@1 | 1462 | case '@': |
duke@1 | 1463 | return readCompoundAnnotation(); |
duke@1 | 1464 | default: |
duke@1 | 1465 | throw new AssertionError("unknown annotation tag '" + c + "'"); |
duke@1 | 1466 | } |
duke@1 | 1467 | } |
duke@1 | 1468 | |
duke@1 | 1469 | interface ProxyVisitor extends Attribute.Visitor { |
duke@1 | 1470 | void visitEnumAttributeProxy(EnumAttributeProxy proxy); |
duke@1 | 1471 | void visitArrayAttributeProxy(ArrayAttributeProxy proxy); |
duke@1 | 1472 | void visitCompoundAnnotationProxy(CompoundAnnotationProxy proxy); |
duke@1 | 1473 | } |
duke@1 | 1474 | |
duke@1 | 1475 | static class EnumAttributeProxy extends Attribute { |
duke@1 | 1476 | Type enumType; |
duke@1 | 1477 | Name enumerator; |
duke@1 | 1478 | public EnumAttributeProxy(Type enumType, Name enumerator) { |
duke@1 | 1479 | super(null); |
duke@1 | 1480 | this.enumType = enumType; |
duke@1 | 1481 | this.enumerator = enumerator; |
duke@1 | 1482 | } |
duke@1 | 1483 | public void accept(Visitor v) { ((ProxyVisitor)v).visitEnumAttributeProxy(this); } |
jjg@256 | 1484 | @Override |
duke@1 | 1485 | public String toString() { |
duke@1 | 1486 | return "/*proxy enum*/" + enumType + "." + enumerator; |
duke@1 | 1487 | } |
duke@1 | 1488 | } |
duke@1 | 1489 | |
duke@1 | 1490 | static class ArrayAttributeProxy extends Attribute { |
duke@1 | 1491 | List<Attribute> values; |
duke@1 | 1492 | ArrayAttributeProxy(List<Attribute> values) { |
duke@1 | 1493 | super(null); |
duke@1 | 1494 | this.values = values; |
duke@1 | 1495 | } |
duke@1 | 1496 | public void accept(Visitor v) { ((ProxyVisitor)v).visitArrayAttributeProxy(this); } |
jjg@256 | 1497 | @Override |
duke@1 | 1498 | public String toString() { |
duke@1 | 1499 | return "{" + values + "}"; |
duke@1 | 1500 | } |
duke@1 | 1501 | } |
duke@1 | 1502 | |
duke@1 | 1503 | /** A temporary proxy representing a compound attribute. |
duke@1 | 1504 | */ |
duke@1 | 1505 | static class CompoundAnnotationProxy extends Attribute { |
duke@1 | 1506 | final List<Pair<Name,Attribute>> values; |
duke@1 | 1507 | public CompoundAnnotationProxy(Type type, |
duke@1 | 1508 | List<Pair<Name,Attribute>> values) { |
duke@1 | 1509 | super(type); |
duke@1 | 1510 | this.values = values; |
duke@1 | 1511 | } |
duke@1 | 1512 | public void accept(Visitor v) { ((ProxyVisitor)v).visitCompoundAnnotationProxy(this); } |
jjg@256 | 1513 | @Override |
duke@1 | 1514 | public String toString() { |
jjg@776 | 1515 | StringBuilder buf = new StringBuilder(); |
duke@1 | 1516 | buf.append("@"); |
duke@1 | 1517 | buf.append(type.tsym.getQualifiedName()); |
duke@1 | 1518 | buf.append("/*proxy*/{"); |
duke@1 | 1519 | boolean first = true; |
duke@1 | 1520 | for (List<Pair<Name,Attribute>> v = values; |
duke@1 | 1521 | v.nonEmpty(); v = v.tail) { |
duke@1 | 1522 | Pair<Name,Attribute> value = v.head; |
duke@1 | 1523 | if (!first) buf.append(","); |
duke@1 | 1524 | first = false; |
duke@1 | 1525 | buf.append(value.fst); |
duke@1 | 1526 | buf.append("="); |
duke@1 | 1527 | buf.append(value.snd); |
duke@1 | 1528 | } |
duke@1 | 1529 | buf.append("}"); |
duke@1 | 1530 | return buf.toString(); |
duke@1 | 1531 | } |
duke@1 | 1532 | } |
duke@1 | 1533 | |
jjg@308 | 1534 | /** A temporary proxy representing a type annotation. |
jjg@308 | 1535 | */ |
jjg@308 | 1536 | static class TypeAnnotationProxy { |
jjg@308 | 1537 | final CompoundAnnotationProxy compound; |
jjg@308 | 1538 | final TypeAnnotationPosition position; |
jjg@308 | 1539 | public TypeAnnotationProxy(CompoundAnnotationProxy compound, |
jjg@308 | 1540 | TypeAnnotationPosition position) { |
jjg@308 | 1541 | this.compound = compound; |
jjg@308 | 1542 | this.position = position; |
jjg@308 | 1543 | } |
jjg@308 | 1544 | } |
jjg@308 | 1545 | |
duke@1 | 1546 | class AnnotationDeproxy implements ProxyVisitor { |
duke@1 | 1547 | private ClassSymbol requestingOwner = currentOwner.kind == MTH |
duke@1 | 1548 | ? currentOwner.enclClass() : (ClassSymbol)currentOwner; |
duke@1 | 1549 | |
duke@1 | 1550 | List<Attribute.Compound> deproxyCompoundList(List<CompoundAnnotationProxy> pl) { |
duke@1 | 1551 | // also must fill in types!!!! |
duke@1 | 1552 | ListBuffer<Attribute.Compound> buf = |
duke@1 | 1553 | new ListBuffer<Attribute.Compound>(); |
duke@1 | 1554 | for (List<CompoundAnnotationProxy> l = pl; l.nonEmpty(); l=l.tail) { |
duke@1 | 1555 | buf.append(deproxyCompound(l.head)); |
duke@1 | 1556 | } |
duke@1 | 1557 | return buf.toList(); |
duke@1 | 1558 | } |
duke@1 | 1559 | |
duke@1 | 1560 | Attribute.Compound deproxyCompound(CompoundAnnotationProxy a) { |
duke@1 | 1561 | ListBuffer<Pair<Symbol.MethodSymbol,Attribute>> buf = |
duke@1 | 1562 | new ListBuffer<Pair<Symbol.MethodSymbol,Attribute>>(); |
duke@1 | 1563 | for (List<Pair<Name,Attribute>> l = a.values; |
duke@1 | 1564 | l.nonEmpty(); |
duke@1 | 1565 | l = l.tail) { |
duke@1 | 1566 | MethodSymbol meth = findAccessMethod(a.type, l.head.fst); |
duke@1 | 1567 | buf.append(new Pair<Symbol.MethodSymbol,Attribute> |
duke@1 | 1568 | (meth, deproxy(meth.type.getReturnType(), l.head.snd))); |
duke@1 | 1569 | } |
duke@1 | 1570 | return new Attribute.Compound(a.type, buf.toList()); |
duke@1 | 1571 | } |
duke@1 | 1572 | |
duke@1 | 1573 | MethodSymbol findAccessMethod(Type container, Name name) { |
duke@1 | 1574 | CompletionFailure failure = null; |
duke@1 | 1575 | try { |
duke@1 | 1576 | for (Scope.Entry e = container.tsym.members().lookup(name); |
duke@1 | 1577 | e.scope != null; |
duke@1 | 1578 | e = e.next()) { |
duke@1 | 1579 | Symbol sym = e.sym; |
duke@1 | 1580 | if (sym.kind == MTH && sym.type.getParameterTypes().length() == 0) |
duke@1 | 1581 | return (MethodSymbol) sym; |
duke@1 | 1582 | } |
duke@1 | 1583 | } catch (CompletionFailure ex) { |
duke@1 | 1584 | failure = ex; |
duke@1 | 1585 | } |
duke@1 | 1586 | // The method wasn't found: emit a warning and recover |
duke@1 | 1587 | JavaFileObject prevSource = log.useSource(requestingOwner.classfile); |
duke@1 | 1588 | try { |
duke@1 | 1589 | if (failure == null) { |
duke@1 | 1590 | log.warning("annotation.method.not.found", |
duke@1 | 1591 | container, |
duke@1 | 1592 | name); |
duke@1 | 1593 | } else { |
duke@1 | 1594 | log.warning("annotation.method.not.found.reason", |
duke@1 | 1595 | container, |
duke@1 | 1596 | name, |
mcimadamore@80 | 1597 | failure.getDetailValue());//diagnostic, if present |
duke@1 | 1598 | } |
duke@1 | 1599 | } finally { |
duke@1 | 1600 | log.useSource(prevSource); |
duke@1 | 1601 | } |
duke@1 | 1602 | // Construct a new method type and symbol. Use bottom |
duke@1 | 1603 | // type (typeof null) as return type because this type is |
duke@1 | 1604 | // a subtype of all reference types and can be converted |
duke@1 | 1605 | // to primitive types by unboxing. |
duke@1 | 1606 | MethodType mt = new MethodType(List.<Type>nil(), |
duke@1 | 1607 | syms.botType, |
duke@1 | 1608 | List.<Type>nil(), |
duke@1 | 1609 | syms.methodClass); |
duke@1 | 1610 | return new MethodSymbol(PUBLIC | ABSTRACT, name, mt, container.tsym); |
duke@1 | 1611 | } |
duke@1 | 1612 | |
duke@1 | 1613 | Attribute result; |
duke@1 | 1614 | Type type; |
duke@1 | 1615 | Attribute deproxy(Type t, Attribute a) { |
duke@1 | 1616 | Type oldType = type; |
duke@1 | 1617 | try { |
duke@1 | 1618 | type = t; |
duke@1 | 1619 | a.accept(this); |
duke@1 | 1620 | return result; |
duke@1 | 1621 | } finally { |
duke@1 | 1622 | type = oldType; |
duke@1 | 1623 | } |
duke@1 | 1624 | } |
duke@1 | 1625 | |
duke@1 | 1626 | // implement Attribute.Visitor below |
duke@1 | 1627 | |
duke@1 | 1628 | public void visitConstant(Attribute.Constant value) { |
duke@1 | 1629 | // assert value.type == type; |
duke@1 | 1630 | result = value; |
duke@1 | 1631 | } |
duke@1 | 1632 | |
duke@1 | 1633 | public void visitClass(Attribute.Class clazz) { |
duke@1 | 1634 | result = clazz; |
duke@1 | 1635 | } |
duke@1 | 1636 | |
duke@1 | 1637 | public void visitEnum(Attribute.Enum e) { |
duke@1 | 1638 | throw new AssertionError(); // shouldn't happen |
duke@1 | 1639 | } |
duke@1 | 1640 | |
duke@1 | 1641 | public void visitCompound(Attribute.Compound compound) { |
duke@1 | 1642 | throw new AssertionError(); // shouldn't happen |
duke@1 | 1643 | } |
duke@1 | 1644 | |
duke@1 | 1645 | public void visitArray(Attribute.Array array) { |
duke@1 | 1646 | throw new AssertionError(); // shouldn't happen |
duke@1 | 1647 | } |
duke@1 | 1648 | |
duke@1 | 1649 | public void visitError(Attribute.Error e) { |
duke@1 | 1650 | throw new AssertionError(); // shouldn't happen |
duke@1 | 1651 | } |
duke@1 | 1652 | |
duke@1 | 1653 | public void visitEnumAttributeProxy(EnumAttributeProxy proxy) { |
duke@1 | 1654 | // type.tsym.flatName() should == proxy.enumFlatName |
duke@1 | 1655 | TypeSymbol enumTypeSym = proxy.enumType.tsym; |
duke@1 | 1656 | VarSymbol enumerator = null; |
mcimadamore@992 | 1657 | CompletionFailure failure = null; |
mcimadamore@992 | 1658 | try { |
mcimadamore@992 | 1659 | for (Scope.Entry e = enumTypeSym.members().lookup(proxy.enumerator); |
mcimadamore@992 | 1660 | e.scope != null; |
mcimadamore@992 | 1661 | e = e.next()) { |
mcimadamore@992 | 1662 | if (e.sym.kind == VAR) { |
mcimadamore@992 | 1663 | enumerator = (VarSymbol)e.sym; |
mcimadamore@992 | 1664 | break; |
mcimadamore@992 | 1665 | } |
duke@1 | 1666 | } |
duke@1 | 1667 | } |
mcimadamore@992 | 1668 | catch (CompletionFailure ex) { |
mcimadamore@992 | 1669 | failure = ex; |
mcimadamore@992 | 1670 | } |
duke@1 | 1671 | if (enumerator == null) { |
mcimadamore@992 | 1672 | if (failure != null) { |
mcimadamore@992 | 1673 | log.warning("unknown.enum.constant.reason", |
mcimadamore@992 | 1674 | currentClassFile, enumTypeSym, proxy.enumerator, |
mcimadamore@992 | 1675 | failure.getDiagnostic()); |
mcimadamore@992 | 1676 | } else { |
mcimadamore@992 | 1677 | log.warning("unknown.enum.constant", |
mcimadamore@992 | 1678 | currentClassFile, enumTypeSym, proxy.enumerator); |
mcimadamore@992 | 1679 | } |
mcimadamore@992 | 1680 | result = new Attribute.Enum(enumTypeSym.type, |
mcimadamore@992 | 1681 | new VarSymbol(0, proxy.enumerator, syms.botType, enumTypeSym)); |
duke@1 | 1682 | } else { |
duke@1 | 1683 | result = new Attribute.Enum(enumTypeSym.type, enumerator); |
duke@1 | 1684 | } |
duke@1 | 1685 | } |
duke@1 | 1686 | |
duke@1 | 1687 | public void visitArrayAttributeProxy(ArrayAttributeProxy proxy) { |
duke@1 | 1688 | int length = proxy.values.length(); |
duke@1 | 1689 | Attribute[] ats = new Attribute[length]; |
duke@1 | 1690 | Type elemtype = types.elemtype(type); |
duke@1 | 1691 | int i = 0; |
duke@1 | 1692 | for (List<Attribute> p = proxy.values; p.nonEmpty(); p = p.tail) { |
duke@1 | 1693 | ats[i++] = deproxy(elemtype, p.head); |
duke@1 | 1694 | } |
duke@1 | 1695 | result = new Attribute.Array(type, ats); |
duke@1 | 1696 | } |
duke@1 | 1697 | |
duke@1 | 1698 | public void visitCompoundAnnotationProxy(CompoundAnnotationProxy proxy) { |
duke@1 | 1699 | result = deproxyCompound(proxy); |
duke@1 | 1700 | } |
duke@1 | 1701 | } |
duke@1 | 1702 | |
duke@1 | 1703 | class AnnotationDefaultCompleter extends AnnotationDeproxy implements Annotate.Annotator { |
duke@1 | 1704 | final MethodSymbol sym; |
duke@1 | 1705 | final Attribute value; |
duke@1 | 1706 | final JavaFileObject classFile = currentClassFile; |
jjg@256 | 1707 | @Override |
duke@1 | 1708 | public String toString() { |
duke@1 | 1709 | return " ClassReader store default for " + sym.owner + "." + sym + " is " + value; |
duke@1 | 1710 | } |
duke@1 | 1711 | AnnotationDefaultCompleter(MethodSymbol sym, Attribute value) { |
duke@1 | 1712 | this.sym = sym; |
duke@1 | 1713 | this.value = value; |
duke@1 | 1714 | } |
duke@1 | 1715 | // implement Annotate.Annotator.enterAnnotation() |
duke@1 | 1716 | public void enterAnnotation() { |
duke@1 | 1717 | JavaFileObject previousClassFile = currentClassFile; |
duke@1 | 1718 | try { |
jfranck@1445 | 1719 | // Reset the interim value set earlier in |
jfranck@1445 | 1720 | // attachAnnotationDefault(). |
jfranck@1445 | 1721 | sym.defaultValue = null; |
duke@1 | 1722 | currentClassFile = classFile; |
duke@1 | 1723 | sym.defaultValue = deproxy(sym.type.getReturnType(), value); |
duke@1 | 1724 | } finally { |
duke@1 | 1725 | currentClassFile = previousClassFile; |
duke@1 | 1726 | } |
duke@1 | 1727 | } |
duke@1 | 1728 | } |
duke@1 | 1729 | |
duke@1 | 1730 | class AnnotationCompleter extends AnnotationDeproxy implements Annotate.Annotator { |
duke@1 | 1731 | final Symbol sym; |
duke@1 | 1732 | final List<CompoundAnnotationProxy> l; |
duke@1 | 1733 | final JavaFileObject classFile; |
jjg@256 | 1734 | @Override |
duke@1 | 1735 | public String toString() { |
duke@1 | 1736 | return " ClassReader annotate " + sym.owner + "." + sym + " with " + l; |
duke@1 | 1737 | } |
duke@1 | 1738 | AnnotationCompleter(Symbol sym, List<CompoundAnnotationProxy> l) { |
duke@1 | 1739 | this.sym = sym; |
duke@1 | 1740 | this.l = l; |
duke@1 | 1741 | this.classFile = currentClassFile; |
duke@1 | 1742 | } |
duke@1 | 1743 | // implement Annotate.Annotator.enterAnnotation() |
duke@1 | 1744 | public void enterAnnotation() { |
duke@1 | 1745 | JavaFileObject previousClassFile = currentClassFile; |
duke@1 | 1746 | try { |
duke@1 | 1747 | currentClassFile = classFile; |
jfranck@1313 | 1748 | Annotations annotations = sym.annotations; |
duke@1 | 1749 | List<Attribute.Compound> newList = deproxyCompoundList(l); |
jfranck@1313 | 1750 | if (annotations.pendingCompletion()) { |
jfranck@1313 | 1751 | annotations.setAttributes(newList); |
jfranck@1313 | 1752 | } else { |
jfranck@1313 | 1753 | annotations.append(newList); |
jfranck@1313 | 1754 | } |
duke@1 | 1755 | } finally { |
duke@1 | 1756 | currentClassFile = previousClassFile; |
duke@1 | 1757 | } |
duke@1 | 1758 | } |
duke@1 | 1759 | } |
duke@1 | 1760 | |
duke@1 | 1761 | |
duke@1 | 1762 | /************************************************************************ |
duke@1 | 1763 | * Reading Symbols |
duke@1 | 1764 | ***********************************************************************/ |
duke@1 | 1765 | |
duke@1 | 1766 | /** Read a field. |
duke@1 | 1767 | */ |
duke@1 | 1768 | VarSymbol readField() { |
duke@1 | 1769 | long flags = adjustFieldFlags(nextChar()); |
duke@1 | 1770 | Name name = readName(nextChar()); |
duke@1 | 1771 | Type type = readType(nextChar()); |
duke@1 | 1772 | VarSymbol v = new VarSymbol(flags, name, type, currentOwner); |
duke@1 | 1773 | readMemberAttrs(v); |
duke@1 | 1774 | return v; |
duke@1 | 1775 | } |
duke@1 | 1776 | |
duke@1 | 1777 | /** Read a method. |
duke@1 | 1778 | */ |
duke@1 | 1779 | MethodSymbol readMethod() { |
duke@1 | 1780 | long flags = adjustMethodFlags(nextChar()); |
duke@1 | 1781 | Name name = readName(nextChar()); |
duke@1 | 1782 | Type type = readType(nextChar()); |
mcimadamore@1415 | 1783 | if (currentOwner.isInterface() && |
mcimadamore@1415 | 1784 | (flags & ABSTRACT) == 0 && !name.equals(names.clinit)) { |
mcimadamore@1415 | 1785 | if (majorVersion > Target.JDK1_8.majorVersion || |
mcimadamore@1415 | 1786 | (majorVersion == Target.JDK1_8.majorVersion && minorVersion >= Target.JDK1_8.minorVersion)) { |
mcimadamore@1415 | 1787 | currentOwner.flags_field |= DEFAULT; |
mcimadamore@1415 | 1788 | flags |= DEFAULT | ABSTRACT; |
mcimadamore@1415 | 1789 | } else { |
mcimadamore@1415 | 1790 | //protect against ill-formed classfiles |
mcimadamore@1415 | 1791 | throw new CompletionFailure(currentOwner, "default method found in pre JDK 8 classfile"); |
mcimadamore@1415 | 1792 | } |
mcimadamore@1415 | 1793 | } |
duke@1 | 1794 | if (name == names.init && currentOwner.hasOuterInstance()) { |
duke@1 | 1795 | // Sometimes anonymous classes don't have an outer |
duke@1 | 1796 | // instance, however, there is no reliable way to tell so |
duke@1 | 1797 | // we never strip this$n |
jjg@113 | 1798 | if (!currentOwner.name.isEmpty()) |
mcimadamore@795 | 1799 | type = new MethodType(adjustMethodParams(flags, type.getParameterTypes()), |
duke@1 | 1800 | type.getReturnType(), |
duke@1 | 1801 | type.getThrownTypes(), |
duke@1 | 1802 | syms.methodClass); |
duke@1 | 1803 | } |
duke@1 | 1804 | MethodSymbol m = new MethodSymbol(flags, name, type, currentOwner); |
jjg@428 | 1805 | if (saveParameterNames) |
jjg@428 | 1806 | initParameterNames(m); |
duke@1 | 1807 | Symbol prevOwner = currentOwner; |
duke@1 | 1808 | currentOwner = m; |
duke@1 | 1809 | try { |
duke@1 | 1810 | readMemberAttrs(m); |
duke@1 | 1811 | } finally { |
duke@1 | 1812 | currentOwner = prevOwner; |
duke@1 | 1813 | } |
jjg@428 | 1814 | if (saveParameterNames) |
jjg@428 | 1815 | setParameterNames(m, type); |
duke@1 | 1816 | return m; |
duke@1 | 1817 | } |
duke@1 | 1818 | |
mcimadamore@795 | 1819 | private List<Type> adjustMethodParams(long flags, List<Type> args) { |
mcimadamore@795 | 1820 | boolean isVarargs = (flags & VARARGS) != 0; |
mcimadamore@795 | 1821 | if (isVarargs) { |
mcimadamore@795 | 1822 | Type varargsElem = args.last(); |
mcimadamore@795 | 1823 | ListBuffer<Type> adjustedArgs = ListBuffer.lb(); |
mcimadamore@795 | 1824 | for (Type t : args) { |
mcimadamore@795 | 1825 | adjustedArgs.append(t != varargsElem ? |
mcimadamore@795 | 1826 | t : |
mcimadamore@795 | 1827 | ((ArrayType)t).makeVarargs()); |
mcimadamore@795 | 1828 | } |
mcimadamore@795 | 1829 | args = adjustedArgs.toList(); |
mcimadamore@795 | 1830 | } |
mcimadamore@795 | 1831 | return args.tail; |
mcimadamore@795 | 1832 | } |
mcimadamore@795 | 1833 | |
jjg@428 | 1834 | /** |
jjg@428 | 1835 | * Init the parameter names array. |
jjg@428 | 1836 | * Parameter names are currently inferred from the names in the |
jjg@428 | 1837 | * LocalVariableTable attributes of a Code attribute. |
jjg@428 | 1838 | * (Note: this means parameter names are currently not available for |
jjg@428 | 1839 | * methods without a Code attribute.) |
jjg@428 | 1840 | * This method initializes an array in which to store the name indexes |
jjg@428 | 1841 | * of parameter names found in LocalVariableTable attributes. It is |
jjg@428 | 1842 | * slightly supersized to allow for additional slots with a start_pc of 0. |
jjg@428 | 1843 | */ |
jjg@428 | 1844 | void initParameterNames(MethodSymbol sym) { |
jjg@428 | 1845 | // make allowance for synthetic parameters. |
jjg@428 | 1846 | final int excessSlots = 4; |
jjg@428 | 1847 | int expectedParameterSlots = |
jjg@428 | 1848 | Code.width(sym.type.getParameterTypes()) + excessSlots; |
jjg@428 | 1849 | if (parameterNameIndices == null |
jjg@428 | 1850 | || parameterNameIndices.length < expectedParameterSlots) { |
jjg@428 | 1851 | parameterNameIndices = new int[expectedParameterSlots]; |
jjg@428 | 1852 | } else |
jjg@428 | 1853 | Arrays.fill(parameterNameIndices, 0); |
jjg@428 | 1854 | haveParameterNameIndices = false; |
jjg@1473 | 1855 | sawMethodParameters = false; |
jjg@428 | 1856 | } |
jjg@428 | 1857 | |
jjg@428 | 1858 | /** |
jjg@428 | 1859 | * Set the parameter names for a symbol from the name index in the |
jjg@428 | 1860 | * parameterNameIndicies array. The type of the symbol may have changed |
jjg@428 | 1861 | * while reading the method attributes (see the Signature attribute). |
jjg@428 | 1862 | * This may be because of generic information or because anonymous |
jjg@428 | 1863 | * synthetic parameters were added. The original type (as read from |
jjg@428 | 1864 | * the method descriptor) is used to help guess the existence of |
jjg@428 | 1865 | * anonymous synthetic parameters. |
jjg@428 | 1866 | * On completion, sym.savedParameter names will either be null (if |
jjg@428 | 1867 | * no parameter names were found in the class file) or will be set to a |
jjg@428 | 1868 | * list of names, one per entry in sym.type.getParameterTypes, with |
jjg@428 | 1869 | * any missing names represented by the empty name. |
jjg@428 | 1870 | */ |
jjg@428 | 1871 | void setParameterNames(MethodSymbol sym, Type jvmType) { |
jjg@428 | 1872 | // if no names were found in the class file, there's nothing more to do |
jjg@428 | 1873 | if (!haveParameterNameIndices) |
jjg@428 | 1874 | return; |
jjg@1473 | 1875 | // If we get parameter names from MethodParameters, then we |
jjg@1473 | 1876 | // don't need to skip. |
jjg@1473 | 1877 | int firstParam = 0; |
jjg@1473 | 1878 | if (!sawMethodParameters) { |
jjg@1473 | 1879 | firstParam = ((sym.flags() & STATIC) == 0) ? 1 : 0; |
jjg@1473 | 1880 | // the code in readMethod may have skipped the first |
jjg@1473 | 1881 | // parameter when setting up the MethodType. If so, we |
jjg@1473 | 1882 | // make a corresponding allowance here for the position of |
jjg@1473 | 1883 | // the first parameter. Note that this assumes the |
jjg@1473 | 1884 | // skipped parameter has a width of 1 -- i.e. it is not |
jjg@428 | 1885 | // a double width type (long or double.) |
jjg@428 | 1886 | if (sym.name == names.init && currentOwner.hasOuterInstance()) { |
jjg@428 | 1887 | // Sometimes anonymous classes don't have an outer |
jjg@428 | 1888 | // instance, however, there is no reliable way to tell so |
jjg@428 | 1889 | // we never strip this$n |
jjg@428 | 1890 | if (!currentOwner.name.isEmpty()) |
jjg@428 | 1891 | firstParam += 1; |
jjg@428 | 1892 | } |
jjg@428 | 1893 | |
jjg@428 | 1894 | if (sym.type != jvmType) { |
jjg@1473 | 1895 | // reading the method attributes has caused the |
jjg@1473 | 1896 | // symbol's type to be changed. (i.e. the Signature |
jjg@1473 | 1897 | // attribute.) This may happen if there are hidden |
jjg@1473 | 1898 | // (synthetic) parameters in the descriptor, but not |
jjg@1473 | 1899 | // in the Signature. The position of these hidden |
jjg@1473 | 1900 | // parameters is unspecified; for now, assume they are |
jjg@1473 | 1901 | // at the beginning, and so skip over them. The |
jjg@1473 | 1902 | // primary case for this is two hidden parameters |
jjg@1473 | 1903 | // passed into Enum constructors. |
jjg@428 | 1904 | int skip = Code.width(jvmType.getParameterTypes()) |
jjg@428 | 1905 | - Code.width(sym.type.getParameterTypes()); |
jjg@428 | 1906 | firstParam += skip; |
jjg@428 | 1907 | } |
jjg@1473 | 1908 | } |
jjg@428 | 1909 | List<Name> paramNames = List.nil(); |
jjg@428 | 1910 | int index = firstParam; |
jjg@428 | 1911 | for (Type t: sym.type.getParameterTypes()) { |
jjg@428 | 1912 | int nameIdx = (index < parameterNameIndices.length |
jjg@428 | 1913 | ? parameterNameIndices[index] : 0); |
jjg@428 | 1914 | Name name = nameIdx == 0 ? names.empty : readName(nameIdx); |
jjg@428 | 1915 | paramNames = paramNames.prepend(name); |
jjg@428 | 1916 | index += Code.width(t); |
jjg@428 | 1917 | } |
jjg@428 | 1918 | sym.savedParameterNames = paramNames.reverse(); |
jjg@428 | 1919 | } |
jjg@428 | 1920 | |
ksrini@826 | 1921 | /** |
ksrini@826 | 1922 | * skip n bytes |
ksrini@826 | 1923 | */ |
ksrini@826 | 1924 | void skipBytes(int n) { |
ksrini@826 | 1925 | bp = bp + n; |
ksrini@826 | 1926 | } |
ksrini@826 | 1927 | |
duke@1 | 1928 | /** Skip a field or method |
duke@1 | 1929 | */ |
duke@1 | 1930 | void skipMember() { |
duke@1 | 1931 | bp = bp + 6; |
duke@1 | 1932 | char ac = nextChar(); |
duke@1 | 1933 | for (int i = 0; i < ac; i++) { |
duke@1 | 1934 | bp = bp + 2; |
duke@1 | 1935 | int attrLen = nextInt(); |
duke@1 | 1936 | bp = bp + attrLen; |
duke@1 | 1937 | } |
duke@1 | 1938 | } |
duke@1 | 1939 | |
duke@1 | 1940 | /** Enter type variables of this classtype and all enclosing ones in |
duke@1 | 1941 | * `typevars'. |
duke@1 | 1942 | */ |
duke@1 | 1943 | protected void enterTypevars(Type t) { |
jjg@1374 | 1944 | if (t.getEnclosingType() != null && t.getEnclosingType().hasTag(CLASS)) |
duke@1 | 1945 | enterTypevars(t.getEnclosingType()); |
duke@1 | 1946 | for (List<Type> xs = t.getTypeArguments(); xs.nonEmpty(); xs = xs.tail) |
duke@1 | 1947 | typevars.enter(xs.head.tsym); |
duke@1 | 1948 | } |
duke@1 | 1949 | |
duke@1 | 1950 | protected void enterTypevars(Symbol sym) { |
duke@1 | 1951 | if (sym.owner.kind == MTH) { |
duke@1 | 1952 | enterTypevars(sym.owner); |
duke@1 | 1953 | enterTypevars(sym.owner.owner); |
duke@1 | 1954 | } |
duke@1 | 1955 | enterTypevars(sym.type); |
duke@1 | 1956 | } |
duke@1 | 1957 | |
duke@1 | 1958 | /** Read contents of a given class symbol `c'. Both external and internal |
duke@1 | 1959 | * versions of an inner class are read. |
duke@1 | 1960 | */ |
duke@1 | 1961 | void readClass(ClassSymbol c) { |
duke@1 | 1962 | ClassType ct = (ClassType)c.type; |
duke@1 | 1963 | |
duke@1 | 1964 | // allocate scope for members |
mcimadamore@858 | 1965 | c.members_field = new Scope(c); |
duke@1 | 1966 | |
duke@1 | 1967 | // prepare type variable table |
duke@1 | 1968 | typevars = typevars.dup(currentOwner); |
jjg@1374 | 1969 | if (ct.getEnclosingType().hasTag(CLASS)) |
jjg@256 | 1970 | enterTypevars(ct.getEnclosingType()); |
duke@1 | 1971 | |
duke@1 | 1972 | // read flags, or skip if this is an inner class |
duke@1 | 1973 | long flags = adjustClassFlags(nextChar()); |
duke@1 | 1974 | if (c.owner.kind == PCK) c.flags_field = flags; |
duke@1 | 1975 | |
duke@1 | 1976 | // read own class name and check that it matches |
duke@1 | 1977 | ClassSymbol self = readClassSymbol(nextChar()); |
duke@1 | 1978 | if (c != self) |
duke@1 | 1979 | throw badClassFile("class.file.wrong.class", |
duke@1 | 1980 | self.flatname); |
duke@1 | 1981 | |
duke@1 | 1982 | // class attributes must be read before class |
duke@1 | 1983 | // skip ahead to read class attributes |
duke@1 | 1984 | int startbp = bp; |
duke@1 | 1985 | nextChar(); |
duke@1 | 1986 | char interfaceCount = nextChar(); |
duke@1 | 1987 | bp += interfaceCount * 2; |
duke@1 | 1988 | char fieldCount = nextChar(); |
duke@1 | 1989 | for (int i = 0; i < fieldCount; i++) skipMember(); |
duke@1 | 1990 | char methodCount = nextChar(); |
duke@1 | 1991 | for (int i = 0; i < methodCount; i++) skipMember(); |
duke@1 | 1992 | readClassAttrs(c); |
duke@1 | 1993 | |
duke@1 | 1994 | if (readAllOfClassFile) { |
duke@1 | 1995 | for (int i = 1; i < poolObj.length; i++) readPool(i); |
vromero@1452 | 1996 | c.pool = new Pool(poolObj.length, poolObj, types); |
duke@1 | 1997 | } |
duke@1 | 1998 | |
duke@1 | 1999 | // reset and read rest of classinfo |
duke@1 | 2000 | bp = startbp; |
duke@1 | 2001 | int n = nextChar(); |
duke@1 | 2002 | if (ct.supertype_field == null) |
duke@1 | 2003 | ct.supertype_field = (n == 0) |
duke@1 | 2004 | ? Type.noType |
duke@1 | 2005 | : readClassSymbol(n).erasure(types); |
duke@1 | 2006 | n = nextChar(); |
duke@1 | 2007 | List<Type> is = List.nil(); |
duke@1 | 2008 | for (int i = 0; i < n; i++) { |
duke@1 | 2009 | Type _inter = readClassSymbol(nextChar()).erasure(types); |
duke@1 | 2010 | is = is.prepend(_inter); |
duke@1 | 2011 | } |
duke@1 | 2012 | if (ct.interfaces_field == null) |
duke@1 | 2013 | ct.interfaces_field = is.reverse(); |
duke@1 | 2014 | |
jjg@816 | 2015 | Assert.check(fieldCount == nextChar()); |
duke@1 | 2016 | for (int i = 0; i < fieldCount; i++) enterMember(c, readField()); |
jjg@816 | 2017 | Assert.check(methodCount == nextChar()); |
duke@1 | 2018 | for (int i = 0; i < methodCount; i++) enterMember(c, readMethod()); |
duke@1 | 2019 | |
duke@1 | 2020 | typevars = typevars.leave(); |
duke@1 | 2021 | } |
duke@1 | 2022 | |
duke@1 | 2023 | /** Read inner class info. For each inner/outer pair allocate a |
duke@1 | 2024 | * member class. |
duke@1 | 2025 | */ |
duke@1 | 2026 | void readInnerClasses(ClassSymbol c) { |
duke@1 | 2027 | int n = nextChar(); |
duke@1 | 2028 | for (int i = 0; i < n; i++) { |
duke@1 | 2029 | nextChar(); // skip inner class symbol |
duke@1 | 2030 | ClassSymbol outer = readClassSymbol(nextChar()); |
duke@1 | 2031 | Name name = readName(nextChar()); |
duke@1 | 2032 | if (name == null) name = names.empty; |
duke@1 | 2033 | long flags = adjustClassFlags(nextChar()); |
duke@1 | 2034 | if (outer != null) { // we have a member class |
duke@1 | 2035 | if (name == names.empty) |
duke@1 | 2036 | name = names.one; |
duke@1 | 2037 | ClassSymbol member = enterClass(name, outer); |
duke@1 | 2038 | if ((flags & STATIC) == 0) { |
duke@1 | 2039 | ((ClassType)member.type).setEnclosingType(outer.type); |
duke@1 | 2040 | if (member.erasure_field != null) |
duke@1 | 2041 | ((ClassType)member.erasure_field).setEnclosingType(types.erasure(outer.type)); |
duke@1 | 2042 | } |
duke@1 | 2043 | if (c == outer) { |
duke@1 | 2044 | member.flags_field = flags; |
duke@1 | 2045 | enterMember(c, member); |
duke@1 | 2046 | } |
duke@1 | 2047 | } |
duke@1 | 2048 | } |
duke@1 | 2049 | } |
duke@1 | 2050 | |
duke@1 | 2051 | /** Read a class file. |
duke@1 | 2052 | */ |
duke@1 | 2053 | private void readClassFile(ClassSymbol c) throws IOException { |
duke@1 | 2054 | int magic = nextInt(); |
duke@1 | 2055 | if (magic != JAVA_MAGIC) |
duke@1 | 2056 | throw badClassFile("illegal.start.of.class.file"); |
duke@1 | 2057 | |
jjg@256 | 2058 | minorVersion = nextChar(); |
jjg@256 | 2059 | majorVersion = nextChar(); |
duke@1 | 2060 | int maxMajor = Target.MAX().majorVersion; |
duke@1 | 2061 | int maxMinor = Target.MAX().minorVersion; |
duke@1 | 2062 | if (majorVersion > maxMajor || |
duke@1 | 2063 | majorVersion * 1000 + minorVersion < |
duke@1 | 2064 | Target.MIN().majorVersion * 1000 + Target.MIN().minorVersion) |
duke@1 | 2065 | { |
duke@1 | 2066 | if (majorVersion == (maxMajor + 1)) |
duke@1 | 2067 | log.warning("big.major.version", |
duke@1 | 2068 | currentClassFile, |
duke@1 | 2069 | majorVersion, |
duke@1 | 2070 | maxMajor); |
duke@1 | 2071 | else |
duke@1 | 2072 | throw badClassFile("wrong.version", |
duke@1 | 2073 | Integer.toString(majorVersion), |
duke@1 | 2074 | Integer.toString(minorVersion), |
duke@1 | 2075 | Integer.toString(maxMajor), |
duke@1 | 2076 | Integer.toString(maxMinor)); |
duke@1 | 2077 | } |
duke@1 | 2078 | else if (checkClassFile && |
duke@1 | 2079 | majorVersion == maxMajor && |
duke@1 | 2080 | minorVersion > maxMinor) |
duke@1 | 2081 | { |
duke@1 | 2082 | printCCF("found.later.version", |
duke@1 | 2083 | Integer.toString(minorVersion)); |
duke@1 | 2084 | } |
duke@1 | 2085 | indexPool(); |
duke@1 | 2086 | if (signatureBuffer.length < bp) { |
duke@1 | 2087 | int ns = Integer.highestOneBit(bp) << 1; |
duke@1 | 2088 | signatureBuffer = new byte[ns]; |
duke@1 | 2089 | } |
duke@1 | 2090 | readClass(c); |
duke@1 | 2091 | } |
duke@1 | 2092 | |
duke@1 | 2093 | /************************************************************************ |
duke@1 | 2094 | * Adjusting flags |
duke@1 | 2095 | ***********************************************************************/ |
duke@1 | 2096 | |
duke@1 | 2097 | long adjustFieldFlags(long flags) { |
duke@1 | 2098 | return flags; |
duke@1 | 2099 | } |
duke@1 | 2100 | long adjustMethodFlags(long flags) { |
duke@1 | 2101 | if ((flags & ACC_BRIDGE) != 0) { |
duke@1 | 2102 | flags &= ~ACC_BRIDGE; |
duke@1 | 2103 | flags |= BRIDGE; |
duke@1 | 2104 | if (!allowGenerics) |
duke@1 | 2105 | flags &= ~SYNTHETIC; |
duke@1 | 2106 | } |
duke@1 | 2107 | if ((flags & ACC_VARARGS) != 0) { |
duke@1 | 2108 | flags &= ~ACC_VARARGS; |
duke@1 | 2109 | flags |= VARARGS; |
duke@1 | 2110 | } |
duke@1 | 2111 | return flags; |
duke@1 | 2112 | } |
duke@1 | 2113 | long adjustClassFlags(long flags) { |
duke@1 | 2114 | return flags & ~ACC_SUPER; // SUPER and SYNCHRONIZED bits overloaded |
duke@1 | 2115 | } |
duke@1 | 2116 | |
duke@1 | 2117 | /************************************************************************ |
duke@1 | 2118 | * Loading Classes |
duke@1 | 2119 | ***********************************************************************/ |
duke@1 | 2120 | |
duke@1 | 2121 | /** Define a new class given its name and owner. |
duke@1 | 2122 | */ |
duke@1 | 2123 | public ClassSymbol defineClass(Name name, Symbol owner) { |
duke@1 | 2124 | ClassSymbol c = new ClassSymbol(0, name, owner); |
duke@1 | 2125 | if (owner.kind == PCK) |
jjg@816 | 2126 | Assert.checkNull(classes.get(c.flatname), c); |
duke@1 | 2127 | c.completer = this; |
duke@1 | 2128 | return c; |
duke@1 | 2129 | } |
duke@1 | 2130 | |
duke@1 | 2131 | /** Create a new toplevel or member class symbol with given name |
duke@1 | 2132 | * and owner and enter in `classes' unless already there. |
duke@1 | 2133 | */ |
duke@1 | 2134 | public ClassSymbol enterClass(Name name, TypeSymbol owner) { |
duke@1 | 2135 | Name flatname = TypeSymbol.formFlatName(name, owner); |
duke@1 | 2136 | ClassSymbol c = classes.get(flatname); |
duke@1 | 2137 | if (c == null) { |
duke@1 | 2138 | c = defineClass(name, owner); |
duke@1 | 2139 | classes.put(flatname, c); |
duke@1 | 2140 | } else if ((c.name != name || c.owner != owner) && owner.kind == TYP && c.owner.kind == PCK) { |
duke@1 | 2141 | // reassign fields of classes that might have been loaded with |
duke@1 | 2142 | // their flat names. |
duke@1 | 2143 | c.owner.members().remove(c); |
duke@1 | 2144 | c.name = name; |
duke@1 | 2145 | c.owner = owner; |
duke@1 | 2146 | c.fullname = ClassSymbol.formFullName(name, owner); |
duke@1 | 2147 | } |
duke@1 | 2148 | return c; |
duke@1 | 2149 | } |
duke@1 | 2150 | |
duke@1 | 2151 | /** |
duke@1 | 2152 | * Creates a new toplevel class symbol with given flat name and |
duke@1 | 2153 | * given class (or source) file. |
duke@1 | 2154 | * |
duke@1 | 2155 | * @param flatName a fully qualified binary class name |
duke@1 | 2156 | * @param classFile the class file or compilation unit defining |
duke@1 | 2157 | * the class (may be {@code null}) |
duke@1 | 2158 | * @return a newly created class symbol |
duke@1 | 2159 | * @throws AssertionError if the class symbol already exists |
duke@1 | 2160 | */ |
duke@1 | 2161 | public ClassSymbol enterClass(Name flatName, JavaFileObject classFile) { |
duke@1 | 2162 | ClassSymbol cs = classes.get(flatName); |
duke@1 | 2163 | if (cs != null) { |
duke@1 | 2164 | String msg = Log.format("%s: completer = %s; class file = %s; source file = %s", |
duke@1 | 2165 | cs.fullname, |
duke@1 | 2166 | cs.completer, |
duke@1 | 2167 | cs.classfile, |
duke@1 | 2168 | cs.sourcefile); |
duke@1 | 2169 | throw new AssertionError(msg); |
duke@1 | 2170 | } |
duke@1 | 2171 | Name packageName = Convert.packagePart(flatName); |
duke@1 | 2172 | PackageSymbol owner = packageName.isEmpty() |
duke@1 | 2173 | ? syms.unnamedPackage |
duke@1 | 2174 | : enterPackage(packageName); |
duke@1 | 2175 | cs = defineClass(Convert.shortName(flatName), owner); |
duke@1 | 2176 | cs.classfile = classFile; |
duke@1 | 2177 | classes.put(flatName, cs); |
duke@1 | 2178 | return cs; |
duke@1 | 2179 | } |
duke@1 | 2180 | |
duke@1 | 2181 | /** Create a new member or toplevel class symbol with given flat name |
duke@1 | 2182 | * and enter in `classes' unless already there. |
duke@1 | 2183 | */ |
duke@1 | 2184 | public ClassSymbol enterClass(Name flatname) { |
duke@1 | 2185 | ClassSymbol c = classes.get(flatname); |
duke@1 | 2186 | if (c == null) |
duke@1 | 2187 | return enterClass(flatname, (JavaFileObject)null); |
duke@1 | 2188 | else |
duke@1 | 2189 | return c; |
duke@1 | 2190 | } |
duke@1 | 2191 | |
duke@1 | 2192 | private boolean suppressFlush = false; |
duke@1 | 2193 | |
duke@1 | 2194 | /** Completion for classes to be loaded. Before a class is loaded |
duke@1 | 2195 | * we make sure its enclosing class (if any) is loaded. |
duke@1 | 2196 | */ |
duke@1 | 2197 | public void complete(Symbol sym) throws CompletionFailure { |
duke@1 | 2198 | if (sym.kind == TYP) { |
duke@1 | 2199 | ClassSymbol c = (ClassSymbol)sym; |
duke@1 | 2200 | c.members_field = new Scope.ErrorScope(c); // make sure it's always defined |
jjg@256 | 2201 | boolean saveSuppressFlush = suppressFlush; |
jjg@256 | 2202 | suppressFlush = true; |
duke@1 | 2203 | try { |
duke@1 | 2204 | completeOwners(c.owner); |
duke@1 | 2205 | completeEnclosing(c); |
duke@1 | 2206 | } finally { |
jjg@256 | 2207 | suppressFlush = saveSuppressFlush; |
duke@1 | 2208 | } |
duke@1 | 2209 | fillIn(c); |
duke@1 | 2210 | } else if (sym.kind == PCK) { |
duke@1 | 2211 | PackageSymbol p = (PackageSymbol)sym; |
duke@1 | 2212 | try { |
duke@1 | 2213 | fillIn(p); |
duke@1 | 2214 | } catch (IOException ex) { |
duke@1 | 2215 | throw new CompletionFailure(sym, ex.getLocalizedMessage()).initCause(ex); |
duke@1 | 2216 | } |
duke@1 | 2217 | } |
duke@1 | 2218 | if (!filling && !suppressFlush) |
duke@1 | 2219 | annotate.flush(); // finish attaching annotations |
duke@1 | 2220 | } |
duke@1 | 2221 | |
duke@1 | 2222 | /** complete up through the enclosing package. */ |
duke@1 | 2223 | private void completeOwners(Symbol o) { |
duke@1 | 2224 | if (o.kind != PCK) completeOwners(o.owner); |
duke@1 | 2225 | o.complete(); |
duke@1 | 2226 | } |
duke@1 | 2227 | |
duke@1 | 2228 | /** |
duke@1 | 2229 | * Tries to complete lexically enclosing classes if c looks like a |
duke@1 | 2230 | * nested class. This is similar to completeOwners but handles |
duke@1 | 2231 | * the situation when a nested class is accessed directly as it is |
duke@1 | 2232 | * possible with the Tree API or javax.lang.model.*. |
duke@1 | 2233 | */ |
duke@1 | 2234 | private void completeEnclosing(ClassSymbol c) { |
duke@1 | 2235 | if (c.owner.kind == PCK) { |
duke@1 | 2236 | Symbol owner = c.owner; |
duke@1 | 2237 | for (Name name : Convert.enclosingCandidates(Convert.shortName(c.name))) { |
duke@1 | 2238 | Symbol encl = owner.members().lookup(name).sym; |
duke@1 | 2239 | if (encl == null) |
duke@1 | 2240 | encl = classes.get(TypeSymbol.formFlatName(name, owner)); |
duke@1 | 2241 | if (encl != null) |
duke@1 | 2242 | encl.complete(); |
duke@1 | 2243 | } |
duke@1 | 2244 | } |
duke@1 | 2245 | } |
duke@1 | 2246 | |
duke@1 | 2247 | /** We can only read a single class file at a time; this |
duke@1 | 2248 | * flag keeps track of when we are currently reading a class |
duke@1 | 2249 | * file. |
duke@1 | 2250 | */ |
duke@1 | 2251 | private boolean filling = false; |
duke@1 | 2252 | |
duke@1 | 2253 | /** Fill in definition of class `c' from corresponding class or |
duke@1 | 2254 | * source file. |
duke@1 | 2255 | */ |
duke@1 | 2256 | private void fillIn(ClassSymbol c) { |
duke@1 | 2257 | if (completionFailureName == c.fullname) { |
duke@1 | 2258 | throw new CompletionFailure(c, "user-selected completion failure by class name"); |
duke@1 | 2259 | } |
duke@1 | 2260 | currentOwner = c; |
jjg@776 | 2261 | warnedAttrs.clear(); |
duke@1 | 2262 | JavaFileObject classfile = c.classfile; |
duke@1 | 2263 | if (classfile != null) { |
duke@1 | 2264 | JavaFileObject previousClassFile = currentClassFile; |
duke@1 | 2265 | try { |
jjg@816 | 2266 | if (filling) { |
jjg@816 | 2267 | Assert.error("Filling " + classfile.toUri() + " during " + previousClassFile); |
jjg@816 | 2268 | } |
duke@1 | 2269 | currentClassFile = classfile; |
duke@1 | 2270 | if (verbose) { |
jjg@909 | 2271 | log.printVerbose("loading", currentClassFile.toString()); |
duke@1 | 2272 | } |
duke@1 | 2273 | if (classfile.getKind() == JavaFileObject.Kind.CLASS) { |
duke@1 | 2274 | filling = true; |
duke@1 | 2275 | try { |
duke@1 | 2276 | bp = 0; |
duke@1 | 2277 | buf = readInputStream(buf, classfile.openInputStream()); |
duke@1 | 2278 | readClassFile(c); |
duke@1 | 2279 | if (!missingTypeVariables.isEmpty() && !foundTypeVariables.isEmpty()) { |
duke@1 | 2280 | List<Type> missing = missingTypeVariables; |
duke@1 | 2281 | List<Type> found = foundTypeVariables; |
duke@1 | 2282 | missingTypeVariables = List.nil(); |
duke@1 | 2283 | foundTypeVariables = List.nil(); |
duke@1 | 2284 | filling = false; |
duke@1 | 2285 | ClassType ct = (ClassType)currentOwner.type; |
duke@1 | 2286 | ct.supertype_field = |
duke@1 | 2287 | types.subst(ct.supertype_field, missing, found); |
duke@1 | 2288 | ct.interfaces_field = |
duke@1 | 2289 | types.subst(ct.interfaces_field, missing, found); |
duke@1 | 2290 | } else if (missingTypeVariables.isEmpty() != |
duke@1 | 2291 | foundTypeVariables.isEmpty()) { |
duke@1 | 2292 | Name name = missingTypeVariables.head.tsym.name; |
duke@1 | 2293 | throw badClassFile("undecl.type.var", name); |
duke@1 | 2294 | } |
duke@1 | 2295 | } finally { |
duke@1 | 2296 | missingTypeVariables = List.nil(); |
duke@1 | 2297 | foundTypeVariables = List.nil(); |
duke@1 | 2298 | filling = false; |
duke@1 | 2299 | } |
duke@1 | 2300 | } else { |
duke@1 | 2301 | if (sourceCompleter != null) { |
duke@1 | 2302 | sourceCompleter.complete(c); |
duke@1 | 2303 | } else { |
duke@1 | 2304 | throw new IllegalStateException("Source completer required to read " |
duke@1 | 2305 | + classfile.toUri()); |
duke@1 | 2306 | } |
duke@1 | 2307 | } |
duke@1 | 2308 | return; |
duke@1 | 2309 | } catch (IOException ex) { |
duke@1 | 2310 | throw badClassFile("unable.to.access.file", ex.getMessage()); |
duke@1 | 2311 | } finally { |
duke@1 | 2312 | currentClassFile = previousClassFile; |
duke@1 | 2313 | } |
duke@1 | 2314 | } else { |
jjg@12 | 2315 | JCDiagnostic diag = |
jjg@12 | 2316 | diagFactory.fragment("class.file.not.found", c.flatname); |
duke@1 | 2317 | throw |
jjg@12 | 2318 | newCompletionFailure(c, diag); |
duke@1 | 2319 | } |
duke@1 | 2320 | } |
duke@1 | 2321 | // where |
duke@1 | 2322 | private static byte[] readInputStream(byte[] buf, InputStream s) throws IOException { |
duke@1 | 2323 | try { |
duke@1 | 2324 | buf = ensureCapacity(buf, s.available()); |
duke@1 | 2325 | int r = s.read(buf); |
duke@1 | 2326 | int bp = 0; |
duke@1 | 2327 | while (r != -1) { |
duke@1 | 2328 | bp += r; |
duke@1 | 2329 | buf = ensureCapacity(buf, bp); |
duke@1 | 2330 | r = s.read(buf, bp, buf.length - bp); |
duke@1 | 2331 | } |
duke@1 | 2332 | return buf; |
duke@1 | 2333 | } finally { |
duke@1 | 2334 | try { |
duke@1 | 2335 | s.close(); |
duke@1 | 2336 | } catch (IOException e) { |
duke@1 | 2337 | /* Ignore any errors, as this stream may have already |
duke@1 | 2338 | * thrown a related exception which is the one that |
duke@1 | 2339 | * should be reported. |
duke@1 | 2340 | */ |
duke@1 | 2341 | } |
duke@1 | 2342 | } |
duke@1 | 2343 | } |
ksrini@804 | 2344 | /* |
ksrini@804 | 2345 | * ensureCapacity will increase the buffer as needed, taking note that |
ksrini@804 | 2346 | * the new buffer will always be greater than the needed and never |
ksrini@804 | 2347 | * exactly equal to the needed size or bp. If equal then the read (above) |
ksrini@804 | 2348 | * will infinitely loop as buf.length - bp == 0. |
ksrini@804 | 2349 | */ |
duke@1 | 2350 | private static byte[] ensureCapacity(byte[] buf, int needed) { |
ksrini@804 | 2351 | if (buf.length <= needed) { |
duke@1 | 2352 | byte[] old = buf; |
duke@1 | 2353 | buf = new byte[Integer.highestOneBit(needed) << 1]; |
duke@1 | 2354 | System.arraycopy(old, 0, buf, 0, old.length); |
duke@1 | 2355 | } |
duke@1 | 2356 | return buf; |
duke@1 | 2357 | } |
duke@1 | 2358 | /** Static factory for CompletionFailure objects. |
duke@1 | 2359 | * In practice, only one can be used at a time, so we share one |
duke@1 | 2360 | * to reduce the expense of allocating new exception objects. |
duke@1 | 2361 | */ |
jjg@12 | 2362 | private CompletionFailure newCompletionFailure(TypeSymbol c, |
jjg@12 | 2363 | JCDiagnostic diag) { |
duke@1 | 2364 | if (!cacheCompletionFailure) { |
duke@1 | 2365 | // log.warning("proc.messager", |
duke@1 | 2366 | // Log.getLocalizedString("class.file.not.found", c.flatname)); |
duke@1 | 2367 | // c.debug.printStackTrace(); |
jjg@12 | 2368 | return new CompletionFailure(c, diag); |
duke@1 | 2369 | } else { |
duke@1 | 2370 | CompletionFailure result = cachedCompletionFailure; |
duke@1 | 2371 | result.sym = c; |
jjg@12 | 2372 | result.diag = diag; |
duke@1 | 2373 | return result; |
duke@1 | 2374 | } |
duke@1 | 2375 | } |
duke@1 | 2376 | private CompletionFailure cachedCompletionFailure = |
jjg@12 | 2377 | new CompletionFailure(null, (JCDiagnostic) null); |
duke@1 | 2378 | { |
duke@1 | 2379 | cachedCompletionFailure.setStackTrace(new StackTraceElement[0]); |
duke@1 | 2380 | } |
duke@1 | 2381 | |
duke@1 | 2382 | /** Load a toplevel class with given fully qualified name |
duke@1 | 2383 | * The class is entered into `classes' only if load was successful. |
duke@1 | 2384 | */ |
duke@1 | 2385 | public ClassSymbol loadClass(Name flatname) throws CompletionFailure { |
duke@1 | 2386 | boolean absent = classes.get(flatname) == null; |
duke@1 | 2387 | ClassSymbol c = enterClass(flatname); |
duke@1 | 2388 | if (c.members_field == null && c.completer != null) { |
duke@1 | 2389 | try { |
duke@1 | 2390 | c.complete(); |
duke@1 | 2391 | } catch (CompletionFailure ex) { |
duke@1 | 2392 | if (absent) classes.remove(flatname); |
duke@1 | 2393 | throw ex; |
duke@1 | 2394 | } |
duke@1 | 2395 | } |
duke@1 | 2396 | return c; |
duke@1 | 2397 | } |
duke@1 | 2398 | |
duke@1 | 2399 | /************************************************************************ |
duke@1 | 2400 | * Loading Packages |
duke@1 | 2401 | ***********************************************************************/ |
duke@1 | 2402 | |
duke@1 | 2403 | /** Check to see if a package exists, given its fully qualified name. |
duke@1 | 2404 | */ |
duke@1 | 2405 | public boolean packageExists(Name fullname) { |
duke@1 | 2406 | return enterPackage(fullname).exists(); |
duke@1 | 2407 | } |
duke@1 | 2408 | |
duke@1 | 2409 | /** Make a package, given its fully qualified name. |
duke@1 | 2410 | */ |
duke@1 | 2411 | public PackageSymbol enterPackage(Name fullname) { |
duke@1 | 2412 | PackageSymbol p = packages.get(fullname); |
duke@1 | 2413 | if (p == null) { |
jjg@816 | 2414 | Assert.check(!fullname.isEmpty(), "rootPackage missing!"); |
duke@1 | 2415 | p = new PackageSymbol( |
duke@1 | 2416 | Convert.shortName(fullname), |
duke@1 | 2417 | enterPackage(Convert.packagePart(fullname))); |
duke@1 | 2418 | p.completer = this; |
duke@1 | 2419 | packages.put(fullname, p); |
duke@1 | 2420 | } |
duke@1 | 2421 | return p; |
duke@1 | 2422 | } |
duke@1 | 2423 | |
duke@1 | 2424 | /** Make a package, given its unqualified name and enclosing package. |
duke@1 | 2425 | */ |
duke@1 | 2426 | public PackageSymbol enterPackage(Name name, PackageSymbol owner) { |
duke@1 | 2427 | return enterPackage(TypeSymbol.formFullName(name, owner)); |
duke@1 | 2428 | } |
duke@1 | 2429 | |
duke@1 | 2430 | /** Include class corresponding to given class file in package, |
duke@1 | 2431 | * unless (1) we already have one the same kind (.class or .java), or |
duke@1 | 2432 | * (2) we have one of the other kind, and the given class file |
duke@1 | 2433 | * is older. |
duke@1 | 2434 | */ |
duke@1 | 2435 | protected void includeClassFile(PackageSymbol p, JavaFileObject file) { |
duke@1 | 2436 | if ((p.flags_field & EXISTS) == 0) |
duke@1 | 2437 | for (Symbol q = p; q != null && q.kind == PCK; q = q.owner) |
duke@1 | 2438 | q.flags_field |= EXISTS; |
duke@1 | 2439 | JavaFileObject.Kind kind = file.getKind(); |
duke@1 | 2440 | int seen; |
duke@1 | 2441 | if (kind == JavaFileObject.Kind.CLASS) |
duke@1 | 2442 | seen = CLASS_SEEN; |
duke@1 | 2443 | else |
duke@1 | 2444 | seen = SOURCE_SEEN; |
duke@1 | 2445 | String binaryName = fileManager.inferBinaryName(currentLoc, file); |
duke@1 | 2446 | int lastDot = binaryName.lastIndexOf("."); |
duke@1 | 2447 | Name classname = names.fromString(binaryName.substring(lastDot + 1)); |
duke@1 | 2448 | boolean isPkgInfo = classname == names.package_info; |
duke@1 | 2449 | ClassSymbol c = isPkgInfo |
duke@1 | 2450 | ? p.package_info |
duke@1 | 2451 | : (ClassSymbol) p.members_field.lookup(classname).sym; |
duke@1 | 2452 | if (c == null) { |
duke@1 | 2453 | c = enterClass(classname, p); |
duke@1 | 2454 | if (c.classfile == null) // only update the file if's it's newly created |
duke@1 | 2455 | c.classfile = file; |
duke@1 | 2456 | if (isPkgInfo) { |
duke@1 | 2457 | p.package_info = c; |
duke@1 | 2458 | } else { |
duke@1 | 2459 | if (c.owner == p) // it might be an inner class |
duke@1 | 2460 | p.members_field.enter(c); |
duke@1 | 2461 | } |
duke@1 | 2462 | } else if (c.classfile != null && (c.flags_field & seen) == 0) { |
duke@1 | 2463 | // if c.classfile == null, we are currently compiling this class |
duke@1 | 2464 | // and no further action is necessary. |
duke@1 | 2465 | // if (c.flags_field & seen) != 0, we have already encountered |
duke@1 | 2466 | // a file of the same kind; again no further action is necessary. |
duke@1 | 2467 | if ((c.flags_field & (CLASS_SEEN | SOURCE_SEEN)) != 0) |
duke@1 | 2468 | c.classfile = preferredFileObject(file, c.classfile); |
duke@1 | 2469 | } |
duke@1 | 2470 | c.flags_field |= seen; |
duke@1 | 2471 | } |
duke@1 | 2472 | |
duke@1 | 2473 | /** Implement policy to choose to derive information from a source |
duke@1 | 2474 | * file or a class file when both are present. May be overridden |
duke@1 | 2475 | * by subclasses. |
duke@1 | 2476 | */ |
duke@1 | 2477 | protected JavaFileObject preferredFileObject(JavaFileObject a, |
duke@1 | 2478 | JavaFileObject b) { |
duke@1 | 2479 | |
duke@1 | 2480 | if (preferSource) |
duke@1 | 2481 | return (a.getKind() == JavaFileObject.Kind.SOURCE) ? a : b; |
duke@1 | 2482 | else { |
duke@1 | 2483 | long adate = a.getLastModified(); |
duke@1 | 2484 | long bdate = b.getLastModified(); |
duke@1 | 2485 | // 6449326: policy for bad lastModifiedTime in ClassReader |
duke@1 | 2486 | //assert adate >= 0 && bdate >= 0; |
duke@1 | 2487 | return (adate > bdate) ? a : b; |
duke@1 | 2488 | } |
duke@1 | 2489 | } |
duke@1 | 2490 | |
duke@1 | 2491 | /** |
duke@1 | 2492 | * specifies types of files to be read when filling in a package symbol |
duke@1 | 2493 | */ |
duke@1 | 2494 | protected EnumSet<JavaFileObject.Kind> getPackageFileKinds() { |
duke@1 | 2495 | return EnumSet.of(JavaFileObject.Kind.CLASS, JavaFileObject.Kind.SOURCE); |
duke@1 | 2496 | } |
duke@1 | 2497 | |
duke@1 | 2498 | /** |
duke@1 | 2499 | * this is used to support javadoc |
duke@1 | 2500 | */ |
duke@1 | 2501 | protected void extraFileActions(PackageSymbol pack, JavaFileObject fe) { |
duke@1 | 2502 | } |
duke@1 | 2503 | |
duke@1 | 2504 | protected Location currentLoc; // FIXME |
duke@1 | 2505 | |
duke@1 | 2506 | private boolean verbosePath = true; |
duke@1 | 2507 | |
duke@1 | 2508 | /** Load directory of package into members scope. |
duke@1 | 2509 | */ |
duke@1 | 2510 | private void fillIn(PackageSymbol p) throws IOException { |
duke@1 | 2511 | if (p.members_field == null) p.members_field = new Scope(p); |
duke@1 | 2512 | String packageName = p.fullname.toString(); |
duke@1 | 2513 | |
duke@1 | 2514 | Set<JavaFileObject.Kind> kinds = getPackageFileKinds(); |
duke@1 | 2515 | |
duke@1 | 2516 | fillIn(p, PLATFORM_CLASS_PATH, |
duke@1 | 2517 | fileManager.list(PLATFORM_CLASS_PATH, |
duke@1 | 2518 | packageName, |
duke@1 | 2519 | EnumSet.of(JavaFileObject.Kind.CLASS), |
duke@1 | 2520 | false)); |
duke@1 | 2521 | |
duke@1 | 2522 | Set<JavaFileObject.Kind> classKinds = EnumSet.copyOf(kinds); |
duke@1 | 2523 | classKinds.remove(JavaFileObject.Kind.SOURCE); |
duke@1 | 2524 | boolean wantClassFiles = !classKinds.isEmpty(); |
duke@1 | 2525 | |
duke@1 | 2526 | Set<JavaFileObject.Kind> sourceKinds = EnumSet.copyOf(kinds); |
duke@1 | 2527 | sourceKinds.remove(JavaFileObject.Kind.CLASS); |
duke@1 | 2528 | boolean wantSourceFiles = !sourceKinds.isEmpty(); |
duke@1 | 2529 | |
duke@1 | 2530 | boolean haveSourcePath = fileManager.hasLocation(SOURCE_PATH); |
duke@1 | 2531 | |
duke@1 | 2532 | if (verbose && verbosePath) { |
duke@1 | 2533 | if (fileManager instanceof StandardJavaFileManager) { |
duke@1 | 2534 | StandardJavaFileManager fm = (StandardJavaFileManager)fileManager; |
duke@1 | 2535 | if (haveSourcePath && wantSourceFiles) { |
duke@1 | 2536 | List<File> path = List.nil(); |
duke@1 | 2537 | for (File file : fm.getLocation(SOURCE_PATH)) { |
duke@1 | 2538 | path = path.prepend(file); |
duke@1 | 2539 | } |
jjg@909 | 2540 | log.printVerbose("sourcepath", path.reverse().toString()); |
duke@1 | 2541 | } else if (wantSourceFiles) { |
duke@1 | 2542 | List<File> path = List.nil(); |
duke@1 | 2543 | for (File file : fm.getLocation(CLASS_PATH)) { |
duke@1 | 2544 | path = path.prepend(file); |
duke@1 | 2545 | } |
jjg@909 | 2546 | log.printVerbose("sourcepath", path.reverse().toString()); |
duke@1 | 2547 | } |
duke@1 | 2548 | if (wantClassFiles) { |
duke@1 | 2549 | List<File> path = List.nil(); |
duke@1 | 2550 | for (File file : fm.getLocation(PLATFORM_CLASS_PATH)) { |
duke@1 | 2551 | path = path.prepend(file); |
duke@1 | 2552 | } |
duke@1 | 2553 | for (File file : fm.getLocation(CLASS_PATH)) { |
duke@1 | 2554 | path = path.prepend(file); |
duke@1 | 2555 | } |
jjg@909 | 2556 | log.printVerbose("classpath", path.reverse().toString()); |
duke@1 | 2557 | } |
duke@1 | 2558 | } |
duke@1 | 2559 | } |
duke@1 | 2560 | |
duke@1 | 2561 | if (wantSourceFiles && !haveSourcePath) { |
duke@1 | 2562 | fillIn(p, CLASS_PATH, |
duke@1 | 2563 | fileManager.list(CLASS_PATH, |
duke@1 | 2564 | packageName, |
duke@1 | 2565 | kinds, |
duke@1 | 2566 | false)); |
duke@1 | 2567 | } else { |
duke@1 | 2568 | if (wantClassFiles) |
duke@1 | 2569 | fillIn(p, CLASS_PATH, |
duke@1 | 2570 | fileManager.list(CLASS_PATH, |
duke@1 | 2571 | packageName, |
duke@1 | 2572 | classKinds, |
duke@1 | 2573 | false)); |
duke@1 | 2574 | if (wantSourceFiles) |
duke@1 | 2575 | fillIn(p, SOURCE_PATH, |
duke@1 | 2576 | fileManager.list(SOURCE_PATH, |
duke@1 | 2577 | packageName, |
duke@1 | 2578 | sourceKinds, |
duke@1 | 2579 | false)); |
duke@1 | 2580 | } |
duke@1 | 2581 | verbosePath = false; |
duke@1 | 2582 | } |
duke@1 | 2583 | // where |
duke@1 | 2584 | private void fillIn(PackageSymbol p, |
duke@1 | 2585 | Location location, |
duke@1 | 2586 | Iterable<JavaFileObject> files) |
duke@1 | 2587 | { |
duke@1 | 2588 | currentLoc = location; |
duke@1 | 2589 | for (JavaFileObject fo : files) { |
duke@1 | 2590 | switch (fo.getKind()) { |
duke@1 | 2591 | case CLASS: |
duke@1 | 2592 | case SOURCE: { |
duke@1 | 2593 | // TODO pass binaryName to includeClassFile |
duke@1 | 2594 | String binaryName = fileManager.inferBinaryName(currentLoc, fo); |
duke@1 | 2595 | String simpleName = binaryName.substring(binaryName.lastIndexOf(".") + 1); |
duke@1 | 2596 | if (SourceVersion.isIdentifier(simpleName) || |
duke@1 | 2597 | simpleName.equals("package-info")) |
duke@1 | 2598 | includeClassFile(p, fo); |
duke@1 | 2599 | break; |
duke@1 | 2600 | } |
duke@1 | 2601 | default: |
duke@1 | 2602 | extraFileActions(p, fo); |
duke@1 | 2603 | } |
duke@1 | 2604 | } |
duke@1 | 2605 | } |
duke@1 | 2606 | |
duke@1 | 2607 | /** Output for "-checkclassfile" option. |
duke@1 | 2608 | * @param key The key to look up the correct internationalized string. |
duke@1 | 2609 | * @param arg An argument for substitution into the output string. |
duke@1 | 2610 | */ |
duke@1 | 2611 | private void printCCF(String key, Object arg) { |
jjg@1136 | 2612 | log.printLines(key, arg); |
duke@1 | 2613 | } |
duke@1 | 2614 | |
duke@1 | 2615 | |
duke@1 | 2616 | public interface SourceCompleter { |
duke@1 | 2617 | void complete(ClassSymbol sym) |
duke@1 | 2618 | throws CompletionFailure; |
duke@1 | 2619 | } |
duke@1 | 2620 | |
duke@1 | 2621 | /** |
duke@1 | 2622 | * A subclass of JavaFileObject for the sourcefile attribute found in a classfile. |
duke@1 | 2623 | * The attribute is only the last component of the original filename, so is unlikely |
duke@1 | 2624 | * to be valid as is, so operations other than those to access the name throw |
duke@1 | 2625 | * UnsupportedOperationException |
duke@1 | 2626 | */ |
duke@1 | 2627 | private static class SourceFileObject extends BaseFileObject { |
duke@1 | 2628 | |
duke@1 | 2629 | /** The file's name. |
duke@1 | 2630 | */ |
duke@1 | 2631 | private Name name; |
jjg@57 | 2632 | private Name flatname; |
duke@1 | 2633 | |
jjg@57 | 2634 | public SourceFileObject(Name name, Name flatname) { |
jjg@57 | 2635 | super(null); // no file manager; never referenced for this file object |
duke@1 | 2636 | this.name = name; |
jjg@57 | 2637 | this.flatname = flatname; |
duke@1 | 2638 | } |
duke@1 | 2639 | |
jjg@415 | 2640 | @Override |
jjg@415 | 2641 | public URI toUri() { |
jjg@415 | 2642 | try { |
jjg@415 | 2643 | return new URI(null, name.toString(), null); |
jjg@415 | 2644 | } catch (URISyntaxException e) { |
jjg@415 | 2645 | throw new CannotCreateUriError(name.toString(), e); |
jjg@415 | 2646 | } |
jjg@415 | 2647 | } |
jjg@415 | 2648 | |
jjg@415 | 2649 | @Override |
jjg@415 | 2650 | public String getName() { |
jjg@415 | 2651 | return name.toString(); |
jjg@415 | 2652 | } |
jjg@415 | 2653 | |
jjg@415 | 2654 | @Override |
jjg@415 | 2655 | public String getShortName() { |
jjg@415 | 2656 | return getName(); |
jjg@415 | 2657 | } |
jjg@415 | 2658 | |
jjg@415 | 2659 | @Override |
jjg@415 | 2660 | public JavaFileObject.Kind getKind() { |
jjg@415 | 2661 | return getKind(getName()); |
jjg@415 | 2662 | } |
jjg@415 | 2663 | |
jjg@415 | 2664 | @Override |
duke@1 | 2665 | public InputStream openInputStream() { |
duke@1 | 2666 | throw new UnsupportedOperationException(); |
duke@1 | 2667 | } |
duke@1 | 2668 | |
jjg@415 | 2669 | @Override |
duke@1 | 2670 | public OutputStream openOutputStream() { |
duke@1 | 2671 | throw new UnsupportedOperationException(); |
duke@1 | 2672 | } |
duke@1 | 2673 | |
jjg@415 | 2674 | @Override |
jjg@415 | 2675 | public CharBuffer getCharContent(boolean ignoreEncodingErrors) { |
duke@1 | 2676 | throw new UnsupportedOperationException(); |
duke@1 | 2677 | } |
duke@1 | 2678 | |
jjg@415 | 2679 | @Override |
jjg@415 | 2680 | public Reader openReader(boolean ignoreEncodingErrors) { |
jjg@415 | 2681 | throw new UnsupportedOperationException(); |
jjg@415 | 2682 | } |
jjg@415 | 2683 | |
jjg@415 | 2684 | @Override |
duke@1 | 2685 | public Writer openWriter() { |
duke@1 | 2686 | throw new UnsupportedOperationException(); |
duke@1 | 2687 | } |
duke@1 | 2688 | |
jjg@415 | 2689 | @Override |
duke@1 | 2690 | public long getLastModified() { |
duke@1 | 2691 | throw new UnsupportedOperationException(); |
duke@1 | 2692 | } |
duke@1 | 2693 | |
jjg@415 | 2694 | @Override |
duke@1 | 2695 | public boolean delete() { |
duke@1 | 2696 | throw new UnsupportedOperationException(); |
duke@1 | 2697 | } |
duke@1 | 2698 | |
jjg@415 | 2699 | @Override |
jjg@415 | 2700 | protected String inferBinaryName(Iterable<? extends File> path) { |
jjg@415 | 2701 | return flatname.toString(); |
jjg@415 | 2702 | } |
jjg@415 | 2703 | |
jjg@415 | 2704 | @Override |
jjg@415 | 2705 | public boolean isNameCompatible(String simpleName, JavaFileObject.Kind kind) { |
jjg@415 | 2706 | return true; // fail-safe mode |
duke@1 | 2707 | } |
duke@1 | 2708 | |
jjg@424 | 2709 | /** |
jjg@424 | 2710 | * Check if two file objects are equal. |
jjg@424 | 2711 | * SourceFileObjects are just placeholder objects for the value of a |
jjg@424 | 2712 | * SourceFile attribute, and do not directly represent specific files. |
jjg@424 | 2713 | * Two SourceFileObjects are equal if their names are equal. |
jjg@424 | 2714 | */ |
duke@1 | 2715 | @Override |
duke@1 | 2716 | public boolean equals(Object other) { |
jjg@424 | 2717 | if (this == other) |
jjg@424 | 2718 | return true; |
jjg@424 | 2719 | |
duke@1 | 2720 | if (!(other instanceof SourceFileObject)) |
duke@1 | 2721 | return false; |
jjg@424 | 2722 | |
duke@1 | 2723 | SourceFileObject o = (SourceFileObject) other; |
duke@1 | 2724 | return name.equals(o.name); |
duke@1 | 2725 | } |
duke@1 | 2726 | |
duke@1 | 2727 | @Override |
duke@1 | 2728 | public int hashCode() { |
duke@1 | 2729 | return name.hashCode(); |
duke@1 | 2730 | } |
duke@1 | 2731 | } |
duke@1 | 2732 | } |