| 1 | /* |
| 2 | * Copyright 1999-2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package com.sun.tools.javac.jvm; |
| 27 | |
| 28 | import java.io.*; |
| 29 | import java.util.*; |
| 30 | import java.util.Set; |
| 31 | import java.util.HashSet; |
| 32 | |
| 33 | import javax.tools.JavaFileManager; |
| 34 | import javax.tools.FileObject; |
| 35 | import javax.tools.JavaFileObject; |
| 36 | |
| 37 | import com.sun.tools.javac.code.*; |
| 38 | import com.sun.tools.javac.code.Symbol.*; |
| 39 | import com.sun.tools.javac.code.Type.*; |
| 40 | import com.sun.tools.javac.util.*; |
| 41 | import com.sun.tools.javac.util.List; |
| 42 | |
| 43 | import static com.sun.tools.javac.code.BoundKind.*; |
| 44 | import static com.sun.tools.javac.code.Flags.*; |
| 45 | import static com.sun.tools.javac.code.Kinds.*; |
| 46 | import static com.sun.tools.javac.code.TypeTags.*; |
| 47 | import static com.sun.tools.javac.jvm.UninitializedType.*; |
| 48 | import static javax.tools.StandardLocation.CLASS_OUTPUT; |
| 49 | |
| 50 | /** This class provides operations to map an internal symbol table graph |
| 51 | * rooted in a ClassSymbol into a classfile. |
| 52 | * |
| 53 | * <p><b>This is NOT part of any API supported by Sun Microsystems. If |
| 54 | * you write code that depends on this, you do so at your own risk. |
| 55 | * This code and its internal interfaces are subject to change or |
| 56 | * deletion without notice.</b> |
| 57 | */ |
| 58 | public class ClassWriter extends ClassFile { |
| 59 | protected static final Context.Key<ClassWriter> classWriterKey = |
| 60 | new Context.Key<ClassWriter>(); |
| 61 | |
| 62 | private final Symtab syms; |
| 63 | |
| 64 | private final Options options; |
| 65 | |
| 66 | /** Switch: verbose output. |
| 67 | */ |
| 68 | private boolean verbose; |
| 69 | |
| 70 | /** Switch: scrable private names. |
| 71 | */ |
| 72 | private boolean scramble; |
| 73 | |
| 74 | /** Switch: scrable private names. |
| 75 | */ |
| 76 | private boolean scrambleAll; |
| 77 | |
| 78 | /** Switch: retrofit mode. |
| 79 | */ |
| 80 | private boolean retrofit; |
| 81 | |
| 82 | /** Switch: emit source file attribute. |
| 83 | */ |
| 84 | private boolean emitSourceFile; |
| 85 | |
| 86 | /** Switch: generate CharacterRangeTable attribute. |
| 87 | */ |
| 88 | private boolean genCrt; |
| 89 | |
| 90 | /** Switch: describe the generated stackmap |
| 91 | */ |
| 92 | boolean debugstackmap; |
| 93 | |
| 94 | /** |
| 95 | * Target class version. |
| 96 | */ |
| 97 | private Target target; |
| 98 | |
| 99 | /** |
| 100 | * Source language version. |
| 101 | */ |
| 102 | private Source source; |
| 103 | |
| 104 | /** Type utilities. */ |
| 105 | private Types types; |
| 106 | |
| 107 | /** The initial sizes of the data and constant pool buffers. |
| 108 | * sizes are increased when buffers get full. |
| 109 | */ |
| 110 | static final int DATA_BUF_SIZE = 0x0fff0; |
| 111 | static final int POOL_BUF_SIZE = 0x1fff0; |
| 112 | |
| 113 | /** An output buffer for member info. |
| 114 | */ |
| 115 | ByteBuffer databuf = new ByteBuffer(DATA_BUF_SIZE); |
| 116 | |
| 117 | /** An output buffer for the constant pool. |
| 118 | */ |
| 119 | ByteBuffer poolbuf = new ByteBuffer(POOL_BUF_SIZE); |
| 120 | |
| 121 | /** An output buffer for type signatures. |
| 122 | */ |
| 123 | ByteBuffer sigbuf = new ByteBuffer(); |
| 124 | |
| 125 | /** The constant pool. |
| 126 | */ |
| 127 | Pool pool; |
| 128 | |
| 129 | /** The inner classes to be written, as a set. |
| 130 | */ |
| 131 | Set<ClassSymbol> innerClasses; |
| 132 | |
| 133 | /** The inner classes to be written, as a queue where |
| 134 | * enclosing classes come first. |
| 135 | */ |
| 136 | ListBuffer<ClassSymbol> innerClassesQueue; |
| 137 | |
| 138 | /** The log to use for verbose output. |
| 139 | */ |
| 140 | private final Log log; |
| 141 | |
| 142 | /** The name table. */ |
| 143 | private final Name.Table names; |
| 144 | |
| 145 | /** Access to files. */ |
| 146 | private final JavaFileManager fileManager; |
| 147 | |
| 148 | /** The tags and constants used in compressed stackmap. */ |
| 149 | static final int SAME_FRAME_SIZE = 64; |
| 150 | static final int SAME_LOCALS_1_STACK_ITEM_EXTENDED = 247; |
| 151 | static final int SAME_FRAME_EXTENDED = 251; |
| 152 | static final int FULL_FRAME = 255; |
| 153 | static final int MAX_LOCAL_LENGTH_DIFF = 4; |
| 154 | |
| 155 | /** Get the ClassWriter instance for this context. */ |
| 156 | public static ClassWriter instance(Context context) { |
| 157 | ClassWriter instance = context.get(classWriterKey); |
| 158 | if (instance == null) |
| 159 | instance = new ClassWriter(context); |
| 160 | return instance; |
| 161 | } |
| 162 | |
| 163 | /** Construct a class writer, given an options table. |
| 164 | */ |
| 165 | private ClassWriter(Context context) { |
| 166 | context.put(classWriterKey, this); |
| 167 | |
| 168 | log = Log.instance(context); |
| 169 | names = Name.Table.instance(context); |
| 170 | syms = Symtab.instance(context); |
| 171 | options = Options.instance(context); |
| 172 | target = Target.instance(context); |
| 173 | source = Source.instance(context); |
| 174 | types = Types.instance(context); |
| 175 | fileManager = context.get(JavaFileManager.class); |
| 176 | |
| 177 | verbose = options.get("-verbose") != null; |
| 178 | scramble = options.get("-scramble") != null; |
| 179 | scrambleAll = options.get("-scrambleAll") != null; |
| 180 | retrofit = options.get("-retrofit") != null; |
| 181 | genCrt = options.get("-Xjcov") != null; |
| 182 | debugstackmap = options.get("debugstackmap") != null; |
| 183 | |
| 184 | emitSourceFile = options.get("-g:")==null || options.get("-g:source")!=null; |
| 185 | |
| 186 | String dumpModFlags = options.get("dumpmodifiers"); |
| 187 | dumpClassModifiers = |
| 188 | (dumpModFlags != null && dumpModFlags.indexOf('c') != -1); |
| 189 | dumpFieldModifiers = |
| 190 | (dumpModFlags != null && dumpModFlags.indexOf('f') != -1); |
| 191 | dumpInnerClassModifiers = |
| 192 | (dumpModFlags != null && dumpModFlags.indexOf('i') != -1); |
| 193 | dumpMethodModifiers = |
| 194 | (dumpModFlags != null && dumpModFlags.indexOf('m') != -1); |
| 195 | } |
| 196 | |
| 197 | /****************************************************************** |
| 198 | * Diagnostics: dump generated class names and modifiers |
| 199 | ******************************************************************/ |
| 200 | |
| 201 | /** Value of option 'dumpmodifiers' is a string |
| 202 | * indicating which modifiers should be dumped for debugging: |
| 203 | * 'c' -- classes |
| 204 | * 'f' -- fields |
| 205 | * 'i' -- innerclass attributes |
| 206 | * 'm' -- methods |
| 207 | * For example, to dump everything: |
| 208 | * javac -XDdumpmodifiers=cifm MyProg.java |
| 209 | */ |
| 210 | private final boolean dumpClassModifiers; // -XDdumpmodifiers=c |
| 211 | private final boolean dumpFieldModifiers; // -XDdumpmodifiers=f |
| 212 | private final boolean dumpInnerClassModifiers; // -XDdumpmodifiers=i |
| 213 | private final boolean dumpMethodModifiers; // -XDdumpmodifiers=m |
| 214 | |
| 215 | |
| 216 | /** Return flags as a string, separated by " ". |
| 217 | */ |
| 218 | public static String flagNames(long flags) { |
| 219 | StringBuffer sbuf = new StringBuffer(); |
| 220 | int i = 0; |
| 221 | long f = flags & StandardFlags; |
| 222 | while (f != 0) { |
| 223 | if ((f & 1) != 0) sbuf.append(" " + flagName[i]); |
| 224 | f = f >> 1; |
| 225 | i++; |
| 226 | } |
| 227 | return sbuf.toString(); |
| 228 | } |
| 229 | //where |
| 230 | private final static String[] flagName = { |
| 231 | "PUBLIC", "PRIVATE", "PROTECTED", "STATIC", "FINAL", |
| 232 | "SUPER", "VOLATILE", "TRANSIENT", "NATIVE", "INTERFACE", |
| 233 | "ABSTRACT", "STRICTFP"}; |
| 234 | |
| 235 | /****************************************************************** |
| 236 | * Output routines |
| 237 | ******************************************************************/ |
| 238 | |
| 239 | /** Write a character into given byte buffer; |
| 240 | * byte buffer will not be grown. |
| 241 | */ |
| 242 | void putChar(ByteBuffer buf, int op, int x) { |
| 243 | buf.elems[op ] = (byte)((x >> 8) & 0xFF); |
| 244 | buf.elems[op+1] = (byte)((x ) & 0xFF); |
| 245 | } |
| 246 | |
| 247 | /** Write an integer into given byte buffer; |
| 248 | * byte buffer will not be grown. |
| 249 | */ |
| 250 | void putInt(ByteBuffer buf, int adr, int x) { |
| 251 | buf.elems[adr ] = (byte)((x >> 24) & 0xFF); |
| 252 | buf.elems[adr+1] = (byte)((x >> 16) & 0xFF); |
| 253 | buf.elems[adr+2] = (byte)((x >> 8) & 0xFF); |
| 254 | buf.elems[adr+3] = (byte)((x ) & 0xFF); |
| 255 | } |
| 256 | |
| 257 | /****************************************************************** |
| 258 | * Signature Generation |
| 259 | ******************************************************************/ |
| 260 | |
| 261 | /** Assemble signature of given type in string buffer. |
| 262 | */ |
| 263 | void assembleSig(Type type) { |
| 264 | switch (type.tag) { |
| 265 | case BYTE: |
| 266 | sigbuf.appendByte('B'); |
| 267 | break; |
| 268 | case SHORT: |
| 269 | sigbuf.appendByte('S'); |
| 270 | break; |
| 271 | case CHAR: |
| 272 | sigbuf.appendByte('C'); |
| 273 | break; |
| 274 | case INT: |
| 275 | sigbuf.appendByte('I'); |
| 276 | break; |
| 277 | case LONG: |
| 278 | sigbuf.appendByte('J'); |
| 279 | break; |
| 280 | case FLOAT: |
| 281 | sigbuf.appendByte('F'); |
| 282 | break; |
| 283 | case DOUBLE: |
| 284 | sigbuf.appendByte('D'); |
| 285 | break; |
| 286 | case BOOLEAN: |
| 287 | sigbuf.appendByte('Z'); |
| 288 | break; |
| 289 | case VOID: |
| 290 | sigbuf.appendByte('V'); |
| 291 | break; |
| 292 | case CLASS: |
| 293 | sigbuf.appendByte('L'); |
| 294 | assembleClassSig(type); |
| 295 | sigbuf.appendByte(';'); |
| 296 | break; |
| 297 | case ARRAY: |
| 298 | ArrayType at = (ArrayType)type; |
| 299 | sigbuf.appendByte('['); |
| 300 | assembleSig(at.elemtype); |
| 301 | break; |
| 302 | case METHOD: |
| 303 | MethodType mt = (MethodType)type; |
| 304 | sigbuf.appendByte('('); |
| 305 | assembleSig(mt.argtypes); |
| 306 | sigbuf.appendByte(')'); |
| 307 | assembleSig(mt.restype); |
| 308 | if (hasTypeVar(mt.thrown)) { |
| 309 | for (List<Type> l = mt.thrown; l.nonEmpty(); l = l.tail) { |
| 310 | sigbuf.appendByte('^'); |
| 311 | assembleSig(l.head); |
| 312 | } |
| 313 | } |
| 314 | break; |
| 315 | case WILDCARD: { |
| 316 | WildcardType ta = (WildcardType) type; |
| 317 | switch (ta.kind) { |
| 318 | case SUPER: |
| 319 | sigbuf.appendByte('-'); |
| 320 | assembleSig(ta.type); |
| 321 | break; |
| 322 | case EXTENDS: |
| 323 | sigbuf.appendByte('+'); |
| 324 | assembleSig(ta.type); |
| 325 | break; |
| 326 | case UNBOUND: |
| 327 | sigbuf.appendByte('*'); |
| 328 | break; |
| 329 | default: |
| 330 | throw new AssertionError(ta.kind); |
| 331 | } |
| 332 | break; |
| 333 | } |
| 334 | case TYPEVAR: |
| 335 | sigbuf.appendByte('T'); |
| 336 | sigbuf.appendName(type.tsym.name); |
| 337 | sigbuf.appendByte(';'); |
| 338 | break; |
| 339 | case FORALL: |
| 340 | ForAll ft = (ForAll)type; |
| 341 | assembleParamsSig(ft.tvars); |
| 342 | assembleSig(ft.qtype); |
| 343 | break; |
| 344 | case UNINITIALIZED_THIS: |
| 345 | case UNINITIALIZED_OBJECT: |
| 346 | // we don't yet have a spec for uninitialized types in the |
| 347 | // local variable table |
| 348 | assembleSig(types.erasure(((UninitializedType)type).qtype)); |
| 349 | break; |
| 350 | default: |
| 351 | throw new AssertionError("typeSig " + type.tag); |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | boolean hasTypeVar(List<Type> l) { |
| 356 | while (l.nonEmpty()) { |
| 357 | if (l.head.tag == TypeTags.TYPEVAR) return true; |
| 358 | l = l.tail; |
| 359 | } |
| 360 | return false; |
| 361 | } |
| 362 | |
| 363 | void assembleClassSig(Type type) { |
| 364 | ClassType ct = (ClassType)type; |
| 365 | ClassSymbol c = (ClassSymbol)ct.tsym; |
| 366 | enterInner(c); |
| 367 | Type outer = ct.getEnclosingType(); |
| 368 | if (outer.allparams().nonEmpty()) { |
| 369 | boolean rawOuter = |
| 370 | c.owner.kind == MTH || // either a local class |
| 371 | c.name == names.empty; // or anonymous |
| 372 | assembleClassSig(rawOuter |
| 373 | ? types.erasure(outer) |
| 374 | : outer); |
| 375 | sigbuf.appendByte('.'); |
| 376 | assert c.flatname.startsWith(c.owner.enclClass().flatname); |
| 377 | sigbuf.appendName(rawOuter |
| 378 | ? c.flatname.subName(c.owner.enclClass() |
| 379 | .flatname.len+1, |
| 380 | c.flatname.len) |
| 381 | : c.name); |
| 382 | } else { |
| 383 | sigbuf.appendBytes(externalize(c.flatname)); |
| 384 | } |
| 385 | if (ct.getTypeArguments().nonEmpty()) { |
| 386 | sigbuf.appendByte('<'); |
| 387 | assembleSig(ct.getTypeArguments()); |
| 388 | sigbuf.appendByte('>'); |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | |
| 393 | void assembleSig(List<Type> types) { |
| 394 | for (List<Type> ts = types; ts.nonEmpty(); ts = ts.tail) |
| 395 | assembleSig(ts.head); |
| 396 | } |
| 397 | |
| 398 | void assembleParamsSig(List<Type> typarams) { |
| 399 | sigbuf.appendByte('<'); |
| 400 | for (List<Type> ts = typarams; ts.nonEmpty(); ts = ts.tail) { |
| 401 | TypeVar tvar = (TypeVar)ts.head; |
| 402 | sigbuf.appendName(tvar.tsym.name); |
| 403 | List<Type> bounds = types.getBounds(tvar); |
| 404 | if ((bounds.head.tsym.flags() & INTERFACE) != 0) { |
| 405 | sigbuf.appendByte(':'); |
| 406 | } |
| 407 | for (List<Type> l = bounds; l.nonEmpty(); l = l.tail) { |
| 408 | sigbuf.appendByte(':'); |
| 409 | assembleSig(l.head); |
| 410 | } |
| 411 | } |
| 412 | sigbuf.appendByte('>'); |
| 413 | } |
| 414 | |
| 415 | /** Return signature of given type |
| 416 | */ |
| 417 | Name typeSig(Type type) { |
| 418 | assert sigbuf.length == 0; |
| 419 | //- System.out.println(" ? " + type); |
| 420 | assembleSig(type); |
| 421 | Name n = sigbuf.toName(names); |
| 422 | sigbuf.reset(); |
| 423 | //- System.out.println(" " + n); |
| 424 | return n; |
| 425 | } |
| 426 | |
| 427 | /** Given a type t, return the extended class name of its erasure in |
| 428 | * external representation. |
| 429 | */ |
| 430 | public Name xClassName(Type t) { |
| 431 | if (t.tag == CLASS) { |
| 432 | return names.fromUtf(externalize(t.tsym.flatName())); |
| 433 | } else if (t.tag == ARRAY) { |
| 434 | return typeSig(types.erasure(t)); |
| 435 | } else { |
| 436 | throw new AssertionError("xClassName"); |
| 437 | } |
| 438 | } |
| 439 | |
| 440 | /****************************************************************** |
| 441 | * Writing the Constant Pool |
| 442 | ******************************************************************/ |
| 443 | |
| 444 | /** Thrown when the constant pool is over full. |
| 445 | */ |
| 446 | public static class PoolOverflow extends Exception { |
| 447 | private static final long serialVersionUID = 0; |
| 448 | public PoolOverflow() {} |
| 449 | } |
| 450 | public static class StringOverflow extends Exception { |
| 451 | private static final long serialVersionUID = 0; |
| 452 | public final String value; |
| 453 | public StringOverflow(String s) { |
| 454 | value = s; |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | /** Write constant pool to pool buffer. |
| 459 | * Note: during writing, constant pool |
| 460 | * might grow since some parts of constants still need to be entered. |
| 461 | */ |
| 462 | void writePool(Pool pool) throws PoolOverflow, StringOverflow { |
| 463 | int poolCountIdx = poolbuf.length; |
| 464 | poolbuf.appendChar(0); |
| 465 | int i = 1; |
| 466 | while (i < pool.pp) { |
| 467 | Object value = pool.pool[i]; |
| 468 | assert value != null; |
| 469 | if (value instanceof Pool.Method) |
| 470 | value = ((Pool.Method)value).m; |
| 471 | else if (value instanceof Pool.Variable) |
| 472 | value = ((Pool.Variable)value).v; |
| 473 | |
| 474 | if (value instanceof MethodSymbol) { |
| 475 | MethodSymbol m = (MethodSymbol)value; |
| 476 | poolbuf.appendByte((m.owner.flags() & INTERFACE) != 0 |
| 477 | ? CONSTANT_InterfaceMethodref |
| 478 | : CONSTANT_Methodref); |
| 479 | poolbuf.appendChar(pool.put(m.owner)); |
| 480 | poolbuf.appendChar(pool.put(nameType(m))); |
| 481 | } else if (value instanceof VarSymbol) { |
| 482 | VarSymbol v = (VarSymbol)value; |
| 483 | poolbuf.appendByte(CONSTANT_Fieldref); |
| 484 | poolbuf.appendChar(pool.put(v.owner)); |
| 485 | poolbuf.appendChar(pool.put(nameType(v))); |
| 486 | } else if (value instanceof Name) { |
| 487 | poolbuf.appendByte(CONSTANT_Utf8); |
| 488 | byte[] bs = ((Name)value).toUtf(); |
| 489 | poolbuf.appendChar(bs.length); |
| 490 | poolbuf.appendBytes(bs, 0, bs.length); |
| 491 | if (bs.length > Pool.MAX_STRING_LENGTH) |
| 492 | throw new StringOverflow(value.toString()); |
| 493 | } else if (value instanceof ClassSymbol) { |
| 494 | ClassSymbol c = (ClassSymbol)value; |
| 495 | if (c.owner.kind == TYP) pool.put(c.owner); |
| 496 | poolbuf.appendByte(CONSTANT_Class); |
| 497 | if (c.type.tag == ARRAY) { |
| 498 | poolbuf.appendChar(pool.put(typeSig(c.type))); |
| 499 | } else { |
| 500 | poolbuf.appendChar(pool.put(names.fromUtf(externalize(c.flatname)))); |
| 501 | enterInner(c); |
| 502 | } |
| 503 | } else if (value instanceof NameAndType) { |
| 504 | NameAndType nt = (NameAndType)value; |
| 505 | poolbuf.appendByte(CONSTANT_NameandType); |
| 506 | poolbuf.appendChar(pool.put(nt.name)); |
| 507 | poolbuf.appendChar(pool.put(typeSig(nt.type))); |
| 508 | } else if (value instanceof Integer) { |
| 509 | poolbuf.appendByte(CONSTANT_Integer); |
| 510 | poolbuf.appendInt(((Integer)value).intValue()); |
| 511 | } else if (value instanceof Long) { |
| 512 | poolbuf.appendByte(CONSTANT_Long); |
| 513 | poolbuf.appendLong(((Long)value).longValue()); |
| 514 | i++; |
| 515 | } else if (value instanceof Float) { |
| 516 | poolbuf.appendByte(CONSTANT_Float); |
| 517 | poolbuf.appendFloat(((Float)value).floatValue()); |
| 518 | } else if (value instanceof Double) { |
| 519 | poolbuf.appendByte(CONSTANT_Double); |
| 520 | poolbuf.appendDouble(((Double)value).doubleValue()); |
| 521 | i++; |
| 522 | } else if (value instanceof String) { |
| 523 | poolbuf.appendByte(CONSTANT_String); |
| 524 | poolbuf.appendChar(pool.put(names.fromString((String)value))); |
| 525 | } else if (value instanceof Type) { |
| 526 | Type type = (Type)value; |
| 527 | if (type.tag == CLASS) enterInner((ClassSymbol)type.tsym); |
| 528 | poolbuf.appendByte(CONSTANT_Class); |
| 529 | poolbuf.appendChar(pool.put(xClassName(type))); |
| 530 | } else { |
| 531 | assert false : "writePool " + value; |
| 532 | } |
| 533 | i++; |
| 534 | } |
| 535 | if (pool.pp > Pool.MAX_ENTRIES) |
| 536 | throw new PoolOverflow(); |
| 537 | putChar(poolbuf, poolCountIdx, pool.pp); |
| 538 | } |
| 539 | |
| 540 | /** Given a field, return its name. |
| 541 | */ |
| 542 | Name fieldName(Symbol sym) { |
| 543 | if (scramble && (sym.flags() & PRIVATE) != 0 || |
| 544 | scrambleAll && (sym.flags() & (PROTECTED | PUBLIC)) == 0) |
| 545 | return names.fromString("_$" + sym.name.index); |
| 546 | else |
| 547 | return sym.name; |
| 548 | } |
| 549 | |
| 550 | /** Given a symbol, return its name-and-type. |
| 551 | */ |
| 552 | NameAndType nameType(Symbol sym) { |
| 553 | return new NameAndType(fieldName(sym), |
| 554 | retrofit |
| 555 | ? sym.erasure(types) |
| 556 | : sym.externalType(types)); |
| 557 | // if we retrofit, then the NameAndType has been read in as is |
| 558 | // and no change is necessary. If we compile normally, the |
| 559 | // NameAndType is generated from a symbol reference, and the |
| 560 | // adjustment of adding an additional this$n parameter needs to be made. |
| 561 | } |
| 562 | |
| 563 | /****************************************************************** |
| 564 | * Writing Attributes |
| 565 | ******************************************************************/ |
| 566 | |
| 567 | /** Write header for an attribute to data buffer and return |
| 568 | * position past attribute length index. |
| 569 | */ |
| 570 | int writeAttr(Name attrName) { |
| 571 | databuf.appendChar(pool.put(attrName)); |
| 572 | databuf.appendInt(0); |
| 573 | return databuf.length; |
| 574 | } |
| 575 | |
| 576 | /** Fill in attribute length. |
| 577 | */ |
| 578 | void endAttr(int index) { |
| 579 | putInt(databuf, index - 4, databuf.length - index); |
| 580 | } |
| 581 | |
| 582 | /** Leave space for attribute count and return index for |
| 583 | * number of attributes field. |
| 584 | */ |
| 585 | int beginAttrs() { |
| 586 | databuf.appendChar(0); |
| 587 | return databuf.length; |
| 588 | } |
| 589 | |
| 590 | /** Fill in number of attributes. |
| 591 | */ |
| 592 | void endAttrs(int index, int count) { |
| 593 | putChar(databuf, index - 2, count); |
| 594 | } |
| 595 | |
| 596 | /** Write the EnclosingMethod attribute if needed. |
| 597 | * Returns the number of attributes written (0 or 1). |
| 598 | */ |
| 599 | int writeEnclosingMethodAttribute(ClassSymbol c) { |
| 600 | if (!target.hasEnclosingMethodAttribute() || |
| 601 | c.owner.kind != MTH && // neither a local class |
| 602 | c.name != names.empty) // nor anonymous |
| 603 | return 0; |
| 604 | |
| 605 | int alenIdx = writeAttr(names.EnclosingMethod); |
| 606 | ClassSymbol enclClass = c.owner.enclClass(); |
| 607 | MethodSymbol enclMethod = |
| 608 | (c.owner.type == null // local to init block |
| 609 | || c.owner.kind != MTH) // or member init |
| 610 | ? null |
| 611 | : (MethodSymbol)c.owner; |
| 612 | databuf.appendChar(pool.put(enclClass)); |
| 613 | databuf.appendChar(enclMethod == null ? 0 : pool.put(nameType(c.owner))); |
| 614 | endAttr(alenIdx); |
| 615 | return 1; |
| 616 | } |
| 617 | |
| 618 | /** Write flag attributes; return number of attributes written. |
| 619 | */ |
| 620 | int writeFlagAttrs(long flags) { |
| 621 | int acount = 0; |
| 622 | if ((flags & DEPRECATED) != 0) { |
| 623 | int alenIdx = writeAttr(names.Deprecated); |
| 624 | endAttr(alenIdx); |
| 625 | acount++; |
| 626 | } |
| 627 | if ((flags & ENUM) != 0 && !target.useEnumFlag()) { |
| 628 | int alenIdx = writeAttr(names.Enum); |
| 629 | endAttr(alenIdx); |
| 630 | acount++; |
| 631 | } |
| 632 | if ((flags & SYNTHETIC) != 0 && !target.useSyntheticFlag()) { |
| 633 | int alenIdx = writeAttr(names.Synthetic); |
| 634 | endAttr(alenIdx); |
| 635 | acount++; |
| 636 | } |
| 637 | if ((flags & BRIDGE) != 0 && !target.useBridgeFlag()) { |
| 638 | int alenIdx = writeAttr(names.Bridge); |
| 639 | endAttr(alenIdx); |
| 640 | acount++; |
| 641 | } |
| 642 | if ((flags & VARARGS) != 0 && !target.useVarargsFlag()) { |
| 643 | int alenIdx = writeAttr(names.Varargs); |
| 644 | endAttr(alenIdx); |
| 645 | acount++; |
| 646 | } |
| 647 | if ((flags & ANNOTATION) != 0 && !target.useAnnotationFlag()) { |
| 648 | int alenIdx = writeAttr(names.Annotation); |
| 649 | endAttr(alenIdx); |
| 650 | acount++; |
| 651 | } |
| 652 | return acount; |
| 653 | } |
| 654 | |
| 655 | /** Write member (field or method) attributes; |
| 656 | * return number of attributes written. |
| 657 | */ |
| 658 | int writeMemberAttrs(Symbol sym) { |
| 659 | int acount = writeFlagAttrs(sym.flags()); |
| 660 | long flags = sym.flags(); |
| 661 | if (source.allowGenerics() && |
| 662 | (flags & (SYNTHETIC|BRIDGE)) != SYNTHETIC && |
| 663 | (flags & ANONCONSTR) == 0 && |
| 664 | (!types.isSameType(sym.type, sym.erasure(types)) || |
| 665 | hasTypeVar(sym.type.getThrownTypes()))) { |
| 666 | // note that a local class with captured variables |
| 667 | // will get a signature attribute |
| 668 | int alenIdx = writeAttr(names.Signature); |
| 669 | databuf.appendChar(pool.put(typeSig(sym.type))); |
| 670 | endAttr(alenIdx); |
| 671 | acount++; |
| 672 | } |
| 673 | acount += writeJavaAnnotations(sym.getAnnotationMirrors()); |
| 674 | return acount; |
| 675 | } |
| 676 | |
| 677 | /** Write method parameter annotations; |
| 678 | * return number of attributes written. |
| 679 | */ |
| 680 | int writeParameterAttrs(MethodSymbol m) { |
| 681 | boolean hasVisible = false; |
| 682 | boolean hasInvisible = false; |
| 683 | if (m.params != null) for (VarSymbol s : m.params) { |
| 684 | for (Attribute.Compound a : s.getAnnotationMirrors()) { |
| 685 | switch (getRetention(a.type.tsym)) { |
| 686 | case SOURCE: break; |
| 687 | case CLASS: hasInvisible = true; break; |
| 688 | case RUNTIME: hasVisible = true; break; |
| 689 | default: ;// /* fail soft */ throw new AssertionError(vis); |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | int attrCount = 0; |
| 695 | if (hasVisible) { |
| 696 | int attrIndex = writeAttr(names.RuntimeVisibleParameterAnnotations); |
| 697 | databuf.appendByte(m.params.length()); |
| 698 | for (VarSymbol s : m.params) { |
| 699 | ListBuffer<Attribute.Compound> buf = new ListBuffer<Attribute.Compound>(); |
| 700 | for (Attribute.Compound a : s.getAnnotationMirrors()) |
| 701 | if (getRetention(a.type.tsym) == RetentionPolicy.RUNTIME) |
| 702 | buf.append(a); |
| 703 | databuf.appendChar(buf.length()); |
| 704 | for (Attribute.Compound a : buf) |
| 705 | writeCompoundAttribute(a); |
| 706 | } |
| 707 | endAttr(attrIndex); |
| 708 | attrCount++; |
| 709 | } |
| 710 | if (hasInvisible) { |
| 711 | int attrIndex = writeAttr(names.RuntimeInvisibleParameterAnnotations); |
| 712 | databuf.appendByte(m.params.length()); |
| 713 | for (VarSymbol s : m.params) { |
| 714 | ListBuffer<Attribute.Compound> buf = new ListBuffer<Attribute.Compound>(); |
| 715 | for (Attribute.Compound a : s.getAnnotationMirrors()) |
| 716 | if (getRetention(a.type.tsym) == RetentionPolicy.CLASS) |
| 717 | buf.append(a); |
| 718 | databuf.appendChar(buf.length()); |
| 719 | for (Attribute.Compound a : buf) |
| 720 | writeCompoundAttribute(a); |
| 721 | } |
| 722 | endAttr(attrIndex); |
| 723 | attrCount++; |
| 724 | } |
| 725 | return attrCount; |
| 726 | } |
| 727 | |
| 728 | /********************************************************************** |
| 729 | * Writing Java-language annotations (aka metadata, attributes) |
| 730 | **********************************************************************/ |
| 731 | |
| 732 | /** Write Java-language annotations; return number of JVM |
| 733 | * attributes written (zero or one). |
| 734 | */ |
| 735 | int writeJavaAnnotations(List<Attribute.Compound> attrs) { |
| 736 | if (attrs.isEmpty()) return 0; |
| 737 | ListBuffer<Attribute.Compound> visibles = new ListBuffer<Attribute.Compound>(); |
| 738 | ListBuffer<Attribute.Compound> invisibles = new ListBuffer<Attribute.Compound>(); |
| 739 | for (Attribute.Compound a : attrs) { |
| 740 | switch (getRetention(a.type.tsym)) { |
| 741 | case SOURCE: break; |
| 742 | case CLASS: invisibles.append(a); break; |
| 743 | case RUNTIME: visibles.append(a); break; |
| 744 | default: ;// /* fail soft */ throw new AssertionError(vis); |
| 745 | } |
| 746 | } |
| 747 | |
| 748 | int attrCount = 0; |
| 749 | if (visibles.length() != 0) { |
| 750 | int attrIndex = writeAttr(names.RuntimeVisibleAnnotations); |
| 751 | databuf.appendChar(visibles.length()); |
| 752 | for (Attribute.Compound a : visibles) |
| 753 | writeCompoundAttribute(a); |
| 754 | endAttr(attrIndex); |
| 755 | attrCount++; |
| 756 | } |
| 757 | if (invisibles.length() != 0) { |
| 758 | int attrIndex = writeAttr(names.RuntimeInvisibleAnnotations); |
| 759 | databuf.appendChar(invisibles.length()); |
| 760 | for (Attribute.Compound a : invisibles) |
| 761 | writeCompoundAttribute(a); |
| 762 | endAttr(attrIndex); |
| 763 | attrCount++; |
| 764 | } |
| 765 | return attrCount; |
| 766 | } |
| 767 | |
| 768 | /** A mirror of java.lang.annotation.RetentionPolicy. */ |
| 769 | enum RetentionPolicy { |
| 770 | SOURCE, |
| 771 | CLASS, |
| 772 | RUNTIME |
| 773 | } |
| 774 | |
| 775 | RetentionPolicy getRetention(TypeSymbol annotationType) { |
| 776 | RetentionPolicy vis = RetentionPolicy.CLASS; // the default |
| 777 | Attribute.Compound c = annotationType.attribute(syms.retentionType.tsym); |
| 778 | if (c != null) { |
| 779 | Attribute value = c.member(names.value); |
| 780 | if (value != null && value instanceof Attribute.Enum) { |
| 781 | Name levelName = ((Attribute.Enum)value).value.name; |
| 782 | if (levelName == names.SOURCE) vis = RetentionPolicy.SOURCE; |
| 783 | else if (levelName == names.CLASS) vis = RetentionPolicy.CLASS; |
| 784 | else if (levelName == names.RUNTIME) vis = RetentionPolicy.RUNTIME; |
| 785 | else ;// /* fail soft */ throw new AssertionError(levelName); |
| 786 | } |
| 787 | } |
| 788 | return vis; |
| 789 | } |
| 790 | |
| 791 | /** A visitor to write an attribute including its leading |
| 792 | * single-character marker. |
| 793 | */ |
| 794 | class AttributeWriter implements Attribute.Visitor { |
| 795 | public void visitConstant(Attribute.Constant _value) { |
| 796 | Object value = _value.value; |
| 797 | switch (_value.type.tag) { |
| 798 | case BYTE: |
| 799 | databuf.appendByte('B'); |
| 800 | break; |
| 801 | case CHAR: |
| 802 | databuf.appendByte('C'); |
| 803 | break; |
| 804 | case SHORT: |
| 805 | databuf.appendByte('S'); |
| 806 | break; |
| 807 | case INT: |
| 808 | databuf.appendByte('I'); |
| 809 | break; |
| 810 | case LONG: |
| 811 | databuf.appendByte('J'); |
| 812 | break; |
| 813 | case FLOAT: |
| 814 | databuf.appendByte('F'); |
| 815 | break; |
| 816 | case DOUBLE: |
| 817 | databuf.appendByte('D'); |
| 818 | break; |
| 819 | case BOOLEAN: |
| 820 | databuf.appendByte('Z'); |
| 821 | break; |
| 822 | case CLASS: |
| 823 | assert value instanceof String; |
| 824 | databuf.appendByte('s'); |
| 825 | value = names.fromString(value.toString()); // CONSTANT_Utf8 |
| 826 | break; |
| 827 | default: |
| 828 | throw new AssertionError(_value.type); |
| 829 | } |
| 830 | databuf.appendChar(pool.put(value)); |
| 831 | } |
| 832 | public void visitEnum(Attribute.Enum e) { |
| 833 | databuf.appendByte('e'); |
| 834 | databuf.appendChar(pool.put(typeSig(e.value.type))); |
| 835 | databuf.appendChar(pool.put(e.value.name)); |
| 836 | } |
| 837 | public void visitClass(Attribute.Class clazz) { |
| 838 | databuf.appendByte('c'); |
| 839 | databuf.appendChar(pool.put(typeSig(clazz.type))); |
| 840 | } |
| 841 | public void visitCompound(Attribute.Compound compound) { |
| 842 | databuf.appendByte('@'); |
| 843 | writeCompoundAttribute(compound); |
| 844 | } |
| 845 | public void visitError(Attribute.Error x) { |
| 846 | throw new AssertionError(x); |
| 847 | } |
| 848 | public void visitArray(Attribute.Array array) { |
| 849 | databuf.appendByte('['); |
| 850 | databuf.appendChar(array.values.length); |
| 851 | for (Attribute a : array.values) { |
| 852 | a.accept(this); |
| 853 | } |
| 854 | } |
| 855 | } |
| 856 | AttributeWriter awriter = new AttributeWriter(); |
| 857 | |
| 858 | /** Write a compound attribute excluding the '@' marker. */ |
| 859 | void writeCompoundAttribute(Attribute.Compound c) { |
| 860 | databuf.appendChar(pool.put(typeSig(c.type))); |
| 861 | databuf.appendChar(c.values.length()); |
| 862 | for (Pair<Symbol.MethodSymbol,Attribute> p : c.values) { |
| 863 | databuf.appendChar(pool.put(p.fst.name)); |
| 864 | p.snd.accept(awriter); |
| 865 | } |
| 866 | } |
| 867 | |
| 868 | /********************************************************************** |
| 869 | * Writing Objects |
| 870 | **********************************************************************/ |
| 871 | |
| 872 | /** Enter an inner class into the `innerClasses' set/queue. |
| 873 | */ |
| 874 | void enterInner(ClassSymbol c) { |
| 875 | assert !c.type.isCompound(); |
| 876 | try { |
| 877 | c.complete(); |
| 878 | } catch (CompletionFailure ex) { |
| 879 | System.err.println("error: " + c + ": " + ex.getMessage()); |
| 880 | throw ex; |
| 881 | } |
| 882 | if (c.type.tag != CLASS) return; // arrays |
| 883 | if (pool != null && // pool might be null if called from xClassName |
| 884 | c.owner.kind != PCK && |
| 885 | (innerClasses == null || !innerClasses.contains(c))) { |
| 886 | // log.errWriter.println("enter inner " + c);//DEBUG |
| 887 | if (c.owner.kind == TYP) enterInner((ClassSymbol)c.owner); |
| 888 | pool.put(c); |
| 889 | pool.put(c.name); |
| 890 | if (innerClasses == null) { |
| 891 | innerClasses = new HashSet<ClassSymbol>(); |
| 892 | innerClassesQueue = new ListBuffer<ClassSymbol>(); |
| 893 | pool.put(names.InnerClasses); |
| 894 | } |
| 895 | innerClasses.add(c); |
| 896 | innerClassesQueue.append(c); |
| 897 | } |
| 898 | } |
| 899 | |
| 900 | /** Write "inner classes" attribute. |
| 901 | */ |
| 902 | void writeInnerClasses() { |
| 903 | int alenIdx = writeAttr(names.InnerClasses); |
| 904 | databuf.appendChar(innerClassesQueue.length()); |
| 905 | for (List<ClassSymbol> l = innerClassesQueue.toList(); |
| 906 | l.nonEmpty(); |
| 907 | l = l.tail) { |
| 908 | ClassSymbol inner = l.head; |
| 909 | char flags = (char) adjustFlags(inner.flags_field); |
| 910 | if ((flags & INTERFACE) != 0) flags |= ABSTRACT; // Interfaces are always ABSTRACT |
| 911 | if (inner.name.isEmpty()) flags &= ~FINAL; // Anonymous class: unset FINAL flag |
| 912 | if (dumpInnerClassModifiers) { |
| 913 | log.errWriter.println("INNERCLASS " + inner.name); |
| 914 | log.errWriter.println("---" + flagNames(flags)); |
| 915 | } |
| 916 | databuf.appendChar(pool.get(inner)); |
| 917 | databuf.appendChar( |
| 918 | inner.owner.kind == TYP ? pool.get(inner.owner) : 0); |
| 919 | databuf.appendChar( |
| 920 | inner.name.len != 0 ? pool.get(inner.name) : 0); |
| 921 | databuf.appendChar(flags); |
| 922 | } |
| 923 | endAttr(alenIdx); |
| 924 | } |
| 925 | |
| 926 | /** Write field symbol, entering all references into constant pool. |
| 927 | */ |
| 928 | void writeField(VarSymbol v) { |
| 929 | int flags = adjustFlags(v.flags()); |
| 930 | databuf.appendChar(flags); |
| 931 | if (dumpFieldModifiers) { |
| 932 | log.errWriter.println("FIELD " + fieldName(v)); |
| 933 | log.errWriter.println("---" + flagNames(v.flags())); |
| 934 | } |
| 935 | databuf.appendChar(pool.put(fieldName(v))); |
| 936 | databuf.appendChar(pool.put(typeSig(v.erasure(types)))); |
| 937 | int acountIdx = beginAttrs(); |
| 938 | int acount = 0; |
| 939 | if (v.getConstValue() != null) { |
| 940 | int alenIdx = writeAttr(names.ConstantValue); |
| 941 | databuf.appendChar(pool.put(v.getConstValue())); |
| 942 | endAttr(alenIdx); |
| 943 | acount++; |
| 944 | } |
| 945 | acount += writeMemberAttrs(v); |
| 946 | endAttrs(acountIdx, acount); |
| 947 | } |
| 948 | |
| 949 | /** Write method symbol, entering all references into constant pool. |
| 950 | */ |
| 951 | void writeMethod(MethodSymbol m) { |
| 952 | int flags = adjustFlags(m.flags()); |
| 953 | databuf.appendChar(flags); |
| 954 | if (dumpMethodModifiers) { |
| 955 | log.errWriter.println("METHOD " + fieldName(m)); |
| 956 | log.errWriter.println("---" + flagNames(m.flags())); |
| 957 | } |
| 958 | databuf.appendChar(pool.put(fieldName(m))); |
| 959 | databuf.appendChar(pool.put(typeSig(m.externalType(types)))); |
| 960 | int acountIdx = beginAttrs(); |
| 961 | int acount = 0; |
| 962 | if (m.code != null) { |
| 963 | int alenIdx = writeAttr(names.Code); |
| 964 | writeCode(m.code); |
| 965 | m.code = null; // to conserve space |
| 966 | endAttr(alenIdx); |
| 967 | acount++; |
| 968 | } |
| 969 | List<Type> thrown = m.erasure(types).getThrownTypes(); |
| 970 | if (thrown.nonEmpty()) { |
| 971 | int alenIdx = writeAttr(names.Exceptions); |
| 972 | databuf.appendChar(thrown.length()); |
| 973 | for (List<Type> l = thrown; l.nonEmpty(); l = l.tail) |
| 974 | databuf.appendChar(pool.put(l.head.tsym)); |
| 975 | endAttr(alenIdx); |
| 976 | acount++; |
| 977 | } |
| 978 | if (m.defaultValue != null) { |
| 979 | int alenIdx = writeAttr(names.AnnotationDefault); |
| 980 | m.defaultValue.accept(awriter); |
| 981 | endAttr(alenIdx); |
| 982 | acount++; |
| 983 | } |
| 984 | acount += writeMemberAttrs(m); |
| 985 | acount += writeParameterAttrs(m); |
| 986 | endAttrs(acountIdx, acount); |
| 987 | } |
| 988 | |
| 989 | /** Write code attribute of method. |
| 990 | */ |
| 991 | void writeCode(Code code) { |
| 992 | databuf.appendChar(code.max_stack); |
| 993 | databuf.appendChar(code.max_locals); |
| 994 | databuf.appendInt(code.cp); |
| 995 | databuf.appendBytes(code.code, 0, code.cp); |
| 996 | databuf.appendChar(code.catchInfo.length()); |
| 997 | for (List<char[]> l = code.catchInfo.toList(); |
| 998 | l.nonEmpty(); |
| 999 | l = l.tail) { |
| 1000 | for (int i = 0; i < l.head.length; i++) |
| 1001 | databuf.appendChar(l.head[i]); |
| 1002 | } |
| 1003 | int acountIdx = beginAttrs(); |
| 1004 | int acount = 0; |
| 1005 | |
| 1006 | if (code.lineInfo.nonEmpty()) { |
| 1007 | int alenIdx = writeAttr(names.LineNumberTable); |
| 1008 | databuf.appendChar(code.lineInfo.length()); |
| 1009 | for (List<char[]> l = code.lineInfo.reverse(); |
| 1010 | l.nonEmpty(); |
| 1011 | l = l.tail) |
| 1012 | for (int i = 0; i < l.head.length; i++) |
| 1013 | databuf.appendChar(l.head[i]); |
| 1014 | endAttr(alenIdx); |
| 1015 | acount++; |
| 1016 | } |
| 1017 | |
| 1018 | if (genCrt && (code.crt != null)) { |
| 1019 | CRTable crt = code.crt; |
| 1020 | int alenIdx = writeAttr(names.CharacterRangeTable); |
| 1021 | int crtIdx = beginAttrs(); |
| 1022 | int crtEntries = crt.writeCRT(databuf, code.lineMap, log); |
| 1023 | endAttrs(crtIdx, crtEntries); |
| 1024 | endAttr(alenIdx); |
| 1025 | acount++; |
| 1026 | } |
| 1027 | |
| 1028 | // counter for number of generic local variables |
| 1029 | int nGenericVars = 0; |
| 1030 | |
| 1031 | if (code.varBufferSize > 0) { |
| 1032 | int alenIdx = writeAttr(names.LocalVariableTable); |
| 1033 | databuf.appendChar(code.varBufferSize); |
| 1034 | |
| 1035 | for (int i=0; i<code.varBufferSize; i++) { |
| 1036 | Code.LocalVar var = code.varBuffer[i]; |
| 1037 | |
| 1038 | // write variable info |
| 1039 | assert var.start_pc >= 0; |
| 1040 | assert var.start_pc <= code.cp; |
| 1041 | databuf.appendChar(var.start_pc); |
| 1042 | assert var.length >= 0; |
| 1043 | assert (var.start_pc + var.length) <= code.cp; |
| 1044 | databuf.appendChar(var.length); |
| 1045 | VarSymbol sym = var.sym; |
| 1046 | databuf.appendChar(pool.put(sym.name)); |
| 1047 | Type vartype = sym.erasure(types); |
| 1048 | if (!types.isSameType(sym.type, vartype)) |
| 1049 | nGenericVars++; |
| 1050 | databuf.appendChar(pool.put(typeSig(vartype))); |
| 1051 | databuf.appendChar(var.reg); |
| 1052 | } |
| 1053 | endAttr(alenIdx); |
| 1054 | acount++; |
| 1055 | } |
| 1056 | |
| 1057 | if (nGenericVars > 0) { |
| 1058 | int alenIdx = writeAttr(names.LocalVariableTypeTable); |
| 1059 | databuf.appendChar(nGenericVars); |
| 1060 | int count = 0; |
| 1061 | |
| 1062 | for (int i=0; i<code.varBufferSize; i++) { |
| 1063 | Code.LocalVar var = code.varBuffer[i]; |
| 1064 | VarSymbol sym = var.sym; |
| 1065 | if (types.isSameType(sym.type, sym.erasure(types))) |
| 1066 | continue; |
| 1067 | count++; |
| 1068 | // write variable info |
| 1069 | databuf.appendChar(var.start_pc); |
| 1070 | databuf.appendChar(var.length); |
| 1071 | databuf.appendChar(pool.put(sym.name)); |
| 1072 | databuf.appendChar(pool.put(typeSig(sym.type))); |
| 1073 | databuf.appendChar(var.reg); |
| 1074 | } |
| 1075 | assert count == nGenericVars; |
| 1076 | endAttr(alenIdx); |
| 1077 | acount++; |
| 1078 | } |
| 1079 | |
| 1080 | if (code.stackMapBufferSize > 0) { |
| 1081 | if (debugstackmap) System.out.println("Stack map for " + code.meth); |
| 1082 | int alenIdx = writeAttr(code.stackMap.getAttributeName(names)); |
| 1083 | writeStackMap(code); |
| 1084 | endAttr(alenIdx); |
| 1085 | acount++; |
| 1086 | } |
| 1087 | endAttrs(acountIdx, acount); |
| 1088 | } |
| 1089 | |
| 1090 | void writeStackMap(Code code) { |
| 1091 | int nframes = code.stackMapBufferSize; |
| 1092 | if (debugstackmap) System.out.println(" nframes = " + nframes); |
| 1093 | databuf.appendChar(nframes); |
| 1094 | |
| 1095 | switch (code.stackMap) { |
| 1096 | case CLDC: |
| 1097 | for (int i=0; i<nframes; i++) { |
| 1098 | if (debugstackmap) System.out.print(" " + i + ":"); |
| 1099 | Code.StackMapFrame frame = code.stackMapBuffer[i]; |
| 1100 | |
| 1101 | // output PC |
| 1102 | if (debugstackmap) System.out.print(" pc=" + frame.pc); |
| 1103 | databuf.appendChar(frame.pc); |
| 1104 | |
| 1105 | // output locals |
| 1106 | int localCount = 0; |
| 1107 | for (int j=0; j<frame.locals.length; |
| 1108 | j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.locals[j]))) { |
| 1109 | localCount++; |
| 1110 | } |
| 1111 | if (debugstackmap) System.out.print(" nlocals=" + |
| 1112 | localCount); |
| 1113 | databuf.appendChar(localCount); |
| 1114 | for (int j=0; j<frame.locals.length; |
| 1115 | j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.locals[j]))) { |
| 1116 | if (debugstackmap) System.out.print(" local[" + j + "]="); |
| 1117 | writeStackMapType(frame.locals[j]); |
| 1118 | } |
| 1119 | |
| 1120 | // output stack |
| 1121 | int stackCount = 0; |
| 1122 | for (int j=0; j<frame.stack.length; |
| 1123 | j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.stack[j]))) { |
| 1124 | stackCount++; |
| 1125 | } |
| 1126 | if (debugstackmap) System.out.print(" nstack=" + |
| 1127 | stackCount); |
| 1128 | databuf.appendChar(stackCount); |
| 1129 | for (int j=0; j<frame.stack.length; |
| 1130 | j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.stack[j]))) { |
| 1131 | if (debugstackmap) System.out.print(" stack[" + j + "]="); |
| 1132 | writeStackMapType(frame.stack[j]); |
| 1133 | } |
| 1134 | if (debugstackmap) System.out.println(); |
| 1135 | } |
| 1136 | break; |
| 1137 | case JSR202: { |
| 1138 | assert code.stackMapBuffer == null; |
| 1139 | for (int i=0; i<nframes; i++) { |
| 1140 | if (debugstackmap) System.out.print(" " + i + ":"); |
| 1141 | StackMapTableFrame frame = code.stackMapTableBuffer[i]; |
| 1142 | frame.write(this); |
| 1143 | if (debugstackmap) System.out.println(); |
| 1144 | } |
| 1145 | break; |
| 1146 | } |
| 1147 | default: |
| 1148 | throw new AssertionError("Unexpected stackmap format value"); |
| 1149 | } |
| 1150 | } |
| 1151 | |
| 1152 | //where |
| 1153 | void writeStackMapType(Type t) { |
| 1154 | if (t == null) { |
| 1155 | if (debugstackmap) System.out.print("empty"); |
| 1156 | databuf.appendByte(0); |
| 1157 | } |
| 1158 | else switch(t.tag) { |
| 1159 | case BYTE: |
| 1160 | case CHAR: |
| 1161 | case SHORT: |
| 1162 | case INT: |
| 1163 | case BOOLEAN: |
| 1164 | if (debugstackmap) System.out.print("int"); |
| 1165 | databuf.appendByte(1); |
| 1166 | break; |
| 1167 | case FLOAT: |
| 1168 | if (debugstackmap) System.out.print("float"); |
| 1169 | databuf.appendByte(2); |
| 1170 | break; |
| 1171 | case DOUBLE: |
| 1172 | if (debugstackmap) System.out.print("double"); |
| 1173 | databuf.appendByte(3); |
| 1174 | break; |
| 1175 | case LONG: |
| 1176 | if (debugstackmap) System.out.print("long"); |
| 1177 | databuf.appendByte(4); |
| 1178 | break; |
| 1179 | case BOT: // null |
| 1180 | if (debugstackmap) System.out.print("null"); |
| 1181 | databuf.appendByte(5); |
| 1182 | break; |
| 1183 | case CLASS: |
| 1184 | case ARRAY: |
| 1185 | if (debugstackmap) System.out.print("object(" + t + ")"); |
| 1186 | databuf.appendByte(7); |
| 1187 | databuf.appendChar(pool.put(t)); |
| 1188 | break; |
| 1189 | case TYPEVAR: |
| 1190 | if (debugstackmap) System.out.print("object(" + types.erasure(t).tsym + ")"); |
| 1191 | databuf.appendByte(7); |
| 1192 | databuf.appendChar(pool.put(types.erasure(t).tsym)); |
| 1193 | break; |
| 1194 | case UNINITIALIZED_THIS: |
| 1195 | if (debugstackmap) System.out.print("uninit_this"); |
| 1196 | databuf.appendByte(6); |
| 1197 | break; |
| 1198 | case UNINITIALIZED_OBJECT: |
| 1199 | { UninitializedType uninitType = (UninitializedType)t; |
| 1200 | databuf.appendByte(8); |
| 1201 | if (debugstackmap) System.out.print("uninit_object@" + uninitType.offset); |
| 1202 | databuf.appendChar(uninitType.offset); |
| 1203 | } |
| 1204 | break; |
| 1205 | default: |
| 1206 | throw new AssertionError(); |
| 1207 | } |
| 1208 | } |
| 1209 | |
| 1210 | /** An entry in the JSR202 StackMapTable */ |
| 1211 | abstract static class StackMapTableFrame { |
| 1212 | abstract int getFrameType(); |
| 1213 | |
| 1214 | void write(ClassWriter writer) { |
| 1215 | int frameType = getFrameType(); |
| 1216 | writer.databuf.appendByte(frameType); |
| 1217 | if (writer.debugstackmap) System.out.print(" frame_type=" + frameType); |
| 1218 | } |
| 1219 | |
| 1220 | static class SameFrame extends StackMapTableFrame { |
| 1221 | final int offsetDelta; |
| 1222 | SameFrame(int offsetDelta) { |
| 1223 | this.offsetDelta = offsetDelta; |
| 1224 | } |
| 1225 | int getFrameType() { |
| 1226 | return (offsetDelta < SAME_FRAME_SIZE) ? offsetDelta : SAME_FRAME_EXTENDED; |
| 1227 | } |
| 1228 | @Override |
| 1229 | void write(ClassWriter writer) { |
| 1230 | super.write(writer); |
| 1231 | if (getFrameType() == SAME_FRAME_EXTENDED) { |
| 1232 | writer.databuf.appendChar(offsetDelta); |
| 1233 | if (writer.debugstackmap){ |
| 1234 | System.out.print(" offset_delta=" + offsetDelta); |
| 1235 | } |
| 1236 | } |
| 1237 | } |
| 1238 | } |
| 1239 | |
| 1240 | static class SameLocals1StackItemFrame extends StackMapTableFrame { |
| 1241 | final int offsetDelta; |
| 1242 | final Type stack; |
| 1243 | SameLocals1StackItemFrame(int offsetDelta, Type stack) { |
| 1244 | this.offsetDelta = offsetDelta; |
| 1245 | this.stack = stack; |
| 1246 | } |
| 1247 | int getFrameType() { |
| 1248 | return (offsetDelta < SAME_FRAME_SIZE) ? |
| 1249 | (SAME_FRAME_SIZE + offsetDelta) : |
| 1250 | SAME_LOCALS_1_STACK_ITEM_EXTENDED; |
| 1251 | } |
| 1252 | @Override |
| 1253 | void write(ClassWriter writer) { |
| 1254 | super.write(writer); |
| 1255 | if (getFrameType() == SAME_LOCALS_1_STACK_ITEM_EXTENDED) { |
| 1256 | writer.databuf.appendChar(offsetDelta); |
| 1257 | if (writer.debugstackmap) { |
| 1258 | System.out.print(" offset_delta=" + offsetDelta); |
| 1259 | } |
| 1260 | } |
| 1261 | if (writer.debugstackmap) { |
| 1262 | System.out.print(" stack[" + 0 + "]="); |
| 1263 | } |
| 1264 | writer.writeStackMapType(stack); |
| 1265 | } |
| 1266 | } |
| 1267 | |
| 1268 | static class ChopFrame extends StackMapTableFrame { |
| 1269 | final int frameType; |
| 1270 | final int offsetDelta; |
| 1271 | ChopFrame(int frameType, int offsetDelta) { |
| 1272 | this.frameType = frameType; |
| 1273 | this.offsetDelta = offsetDelta; |
| 1274 | } |
| 1275 | int getFrameType() { return frameType; } |
| 1276 | @Override |
| 1277 | void write(ClassWriter writer) { |
| 1278 | super.write(writer); |
| 1279 | writer.databuf.appendChar(offsetDelta); |
| 1280 | if (writer.debugstackmap) { |
| 1281 | System.out.print(" offset_delta=" + offsetDelta); |
| 1282 | } |
| 1283 | } |
| 1284 | } |
| 1285 | |
| 1286 | static class AppendFrame extends StackMapTableFrame { |
| 1287 | final int frameType; |
| 1288 | final int offsetDelta; |
| 1289 | final Type[] locals; |
| 1290 | AppendFrame(int frameType, int offsetDelta, Type[] locals) { |
| 1291 | this.frameType = frameType; |
| 1292 | this.offsetDelta = offsetDelta; |
| 1293 | this.locals = locals; |
| 1294 | } |
| 1295 | int getFrameType() { return frameType; } |
| 1296 | @Override |
| 1297 | void write(ClassWriter writer) { |
| 1298 | super.write(writer); |
| 1299 | writer.databuf.appendChar(offsetDelta); |
| 1300 | if (writer.debugstackmap) { |
| 1301 | System.out.print(" offset_delta=" + offsetDelta); |
| 1302 | } |
| 1303 | for (int i=0; i<locals.length; i++) { |
| 1304 | if (writer.debugstackmap) System.out.print(" locals[" + i + "]="); |
| 1305 | writer.writeStackMapType(locals[i]); |
| 1306 | } |
| 1307 | } |
| 1308 | } |
| 1309 | |
| 1310 | static class FullFrame extends StackMapTableFrame { |
| 1311 | final int offsetDelta; |
| 1312 | final Type[] locals; |
| 1313 | final Type[] stack; |
| 1314 | FullFrame(int offsetDelta, Type[] locals, Type[] stack) { |
| 1315 | this.offsetDelta = offsetDelta; |
| 1316 | this.locals = locals; |
| 1317 | this.stack = stack; |
| 1318 | } |
| 1319 | int getFrameType() { return FULL_FRAME; } |
| 1320 | @Override |
| 1321 | void write(ClassWriter writer) { |
| 1322 | super.write(writer); |
| 1323 | writer.databuf.appendChar(offsetDelta); |
| 1324 | writer.databuf.appendChar(locals.length); |
| 1325 | if (writer.debugstackmap) { |
| 1326 | System.out.print(" offset_delta=" + offsetDelta); |
| 1327 | System.out.print(" nlocals=" + locals.length); |
| 1328 | } |
| 1329 | for (int i=0; i<locals.length; i++) { |
| 1330 | if (writer.debugstackmap) System.out.print(" locals[" + i + "]="); |
| 1331 | writer.writeStackMapType(locals[i]); |
| 1332 | } |
| 1333 | |
| 1334 | writer.databuf.appendChar(stack.length); |
| 1335 | if (writer.debugstackmap) { System.out.print(" nstack=" + stack.length); } |
| 1336 | for (int i=0; i<stack.length; i++) { |
| 1337 | if (writer.debugstackmap) System.out.print(" stack[" + i + "]="); |
| 1338 | writer.writeStackMapType(stack[i]); |
| 1339 | } |
| 1340 | } |
| 1341 | } |
| 1342 | |
| 1343 | /** Compare this frame with the previous frame and produce |
| 1344 | * an entry of compressed stack map frame. */ |
| 1345 | static StackMapTableFrame getInstance(Code.StackMapFrame this_frame, |
| 1346 | int prev_pc, |
| 1347 | Type[] prev_locals, |
| 1348 | Types types) { |
| 1349 | Type[] locals = this_frame.locals; |
| 1350 | Type[] stack = this_frame.stack; |
| 1351 | int offset_delta = this_frame.pc - prev_pc - 1; |
| 1352 | if (stack.length == 1) { |
| 1353 | if (locals.length == prev_locals.length |
| 1354 | && compare(prev_locals, locals, types) == 0) { |
| 1355 | return new SameLocals1StackItemFrame(offset_delta, stack[0]); |
| 1356 | } |
| 1357 | } else if (stack.length == 0) { |
| 1358 | int diff_length = compare(prev_locals, locals, types); |
| 1359 | if (diff_length == 0) { |
| 1360 | return new SameFrame(offset_delta); |
| 1361 | } else if (-MAX_LOCAL_LENGTH_DIFF < diff_length && diff_length < 0) { |
| 1362 | // APPEND |
| 1363 | Type[] local_diff = new Type[-diff_length]; |
| 1364 | for (int i=prev_locals.length, j=0; i<locals.length; i++,j++) { |
| 1365 | local_diff[j] = locals[i]; |
| 1366 | } |
| 1367 | return new AppendFrame(SAME_FRAME_EXTENDED - diff_length, |
| 1368 | offset_delta, |
| 1369 | local_diff); |
| 1370 | } else if (0 < diff_length && diff_length < MAX_LOCAL_LENGTH_DIFF) { |
| 1371 | // CHOP |
| 1372 | return new ChopFrame(SAME_FRAME_EXTENDED - diff_length, |
| 1373 | offset_delta); |
| 1374 | } |
| 1375 | } |
| 1376 | // FULL_FRAME |
| 1377 | return new FullFrame(offset_delta, locals, stack); |
| 1378 | } |
| 1379 | |
| 1380 | static boolean isInt(Type t) { |
| 1381 | return (t.tag < TypeTags.INT || t.tag == TypeTags.BOOLEAN); |
| 1382 | } |
| 1383 | |
| 1384 | static boolean isSameType(Type t1, Type t2, Types types) { |
| 1385 | if (t1 == null) { return t2 == null; } |
| 1386 | if (t2 == null) { return false; } |
| 1387 | |
| 1388 | if (isInt(t1) && isInt(t2)) { return true; } |
| 1389 | |
| 1390 | if (t1.tag == UNINITIALIZED_THIS) { |
| 1391 | return t2.tag == UNINITIALIZED_THIS; |
| 1392 | } else if (t1.tag == UNINITIALIZED_OBJECT) { |
| 1393 | if (t2.tag == UNINITIALIZED_OBJECT) { |
| 1394 | return ((UninitializedType)t1).offset == ((UninitializedType)t2).offset; |
| 1395 | } else { |
| 1396 | return false; |
| 1397 | } |
| 1398 | } else if (t2.tag == UNINITIALIZED_THIS || t2.tag == UNINITIALIZED_OBJECT) { |
| 1399 | return false; |
| 1400 | } |
| 1401 | |
| 1402 | return types.isSameType(t1, t2); |
| 1403 | } |
| 1404 | |
| 1405 | static int compare(Type[] arr1, Type[] arr2, Types types) { |
| 1406 | int diff_length = arr1.length - arr2.length; |
| 1407 | if (diff_length > MAX_LOCAL_LENGTH_DIFF || diff_length < -MAX_LOCAL_LENGTH_DIFF) { |
| 1408 | return Integer.MAX_VALUE; |
| 1409 | } |
| 1410 | int len = (diff_length > 0) ? arr2.length : arr1.length; |
| 1411 | for (int i=0; i<len; i++) { |
| 1412 | if (!isSameType(arr1[i], arr2[i], types)) { |
| 1413 | return Integer.MAX_VALUE; |
| 1414 | } |
| 1415 | } |
| 1416 | return diff_length; |
| 1417 | } |
| 1418 | } |
| 1419 | |
| 1420 | void writeFields(Scope.Entry e) { |
| 1421 | // process them in reverse sibling order; |
| 1422 | // i.e., process them in declaration order. |
| 1423 | List<VarSymbol> vars = List.nil(); |
| 1424 | for (Scope.Entry i = e; i != null; i = i.sibling) { |
| 1425 | if (i.sym.kind == VAR) vars = vars.prepend((VarSymbol)i.sym); |
| 1426 | } |
| 1427 | while (vars.nonEmpty()) { |
| 1428 | writeField(vars.head); |
| 1429 | vars = vars.tail; |
| 1430 | } |
| 1431 | } |
| 1432 | |
| 1433 | void writeMethods(Scope.Entry e) { |
| 1434 | List<MethodSymbol> methods = List.nil(); |
| 1435 | for (Scope.Entry i = e; i != null; i = i.sibling) { |
| 1436 | if (i.sym.kind == MTH && (i.sym.flags() & HYPOTHETICAL) == 0) |
| 1437 | methods = methods.prepend((MethodSymbol)i.sym); |
| 1438 | } |
| 1439 | while (methods.nonEmpty()) { |
| 1440 | writeMethod(methods.head); |
| 1441 | methods = methods.tail; |
| 1442 | } |
| 1443 | } |
| 1444 | |
| 1445 | /** Emit a class file for a given class. |
| 1446 | * @param c The class from which a class file is generated. |
| 1447 | */ |
| 1448 | public JavaFileObject writeClass(ClassSymbol c) |
| 1449 | throws IOException, PoolOverflow, StringOverflow |
| 1450 | { |
| 1451 | JavaFileObject outFile |
| 1452 | = fileManager.getJavaFileForOutput(CLASS_OUTPUT, |
| 1453 | c.flatname.toString(), |
| 1454 | JavaFileObject.Kind.CLASS, |
| 1455 | c.sourcefile); |
| 1456 | OutputStream out = outFile.openOutputStream(); |
| 1457 | try { |
| 1458 | writeClassFile(out, c); |
| 1459 | if (verbose) |
| 1460 | log.errWriter.println(log.getLocalizedString("verbose.wrote.file", outFile)); |
| 1461 | out.close(); |
| 1462 | out = null; |
| 1463 | } finally { |
| 1464 | if (out != null) { |
| 1465 | // if we are propogating an exception, delete the file |
| 1466 | out.close(); |
| 1467 | outFile.delete(); |
| 1468 | outFile = null; |
| 1469 | } |
| 1470 | } |
| 1471 | return outFile; // may be null if write failed |
| 1472 | } |
| 1473 | |
| 1474 | /** Write class `c' to outstream `out'. |
| 1475 | */ |
| 1476 | public void writeClassFile(OutputStream out, ClassSymbol c) |
| 1477 | throws IOException, PoolOverflow, StringOverflow { |
| 1478 | assert (c.flags() & COMPOUND) == 0; |
| 1479 | databuf.reset(); |
| 1480 | poolbuf.reset(); |
| 1481 | sigbuf.reset(); |
| 1482 | pool = c.pool; |
| 1483 | innerClasses = null; |
| 1484 | innerClassesQueue = null; |
| 1485 | |
| 1486 | Type supertype = types.supertype(c.type); |
| 1487 | List<Type> interfaces = types.interfaces(c.type); |
| 1488 | List<Type> typarams = c.type.getTypeArguments(); |
| 1489 | |
| 1490 | int flags = adjustFlags(c.flags()); |
| 1491 | if ((flags & PROTECTED) != 0) flags |= PUBLIC; |
| 1492 | flags = flags & ClassFlags & ~STRICTFP; |
| 1493 | if ((flags & INTERFACE) == 0) flags |= ACC_SUPER; |
| 1494 | if (c.isInner() && c.name.isEmpty()) flags &= ~FINAL; |
| 1495 | if (dumpClassModifiers) { |
| 1496 | log.errWriter.println(); |
| 1497 | log.errWriter.println("CLASSFILE " + c.getQualifiedName()); |
| 1498 | log.errWriter.println("---" + flagNames(flags)); |
| 1499 | } |
| 1500 | databuf.appendChar(flags); |
| 1501 | |
| 1502 | databuf.appendChar(pool.put(c)); |
| 1503 | databuf.appendChar(supertype.tag == CLASS ? pool.put(supertype.tsym) : 0); |
| 1504 | databuf.appendChar(interfaces.length()); |
| 1505 | for (List<Type> l = interfaces; l.nonEmpty(); l = l.tail) |
| 1506 | databuf.appendChar(pool.put(l.head.tsym)); |
| 1507 | int fieldsCount = 0; |
| 1508 | int methodsCount = 0; |
| 1509 | for (Scope.Entry e = c.members().elems; e != null; e = e.sibling) { |
| 1510 | switch (e.sym.kind) { |
| 1511 | case VAR: fieldsCount++; break; |
| 1512 | case MTH: if ((e.sym.flags() & HYPOTHETICAL) == 0) methodsCount++; |
| 1513 | break; |
| 1514 | case TYP: enterInner((ClassSymbol)e.sym); break; |
| 1515 | default : assert false; |
| 1516 | } |
| 1517 | } |
| 1518 | databuf.appendChar(fieldsCount); |
| 1519 | writeFields(c.members().elems); |
| 1520 | databuf.appendChar(methodsCount); |
| 1521 | writeMethods(c.members().elems); |
| 1522 | |
| 1523 | int acountIdx = beginAttrs(); |
| 1524 | int acount = 0; |
| 1525 | |
| 1526 | boolean sigReq = |
| 1527 | typarams.length() != 0 || supertype.getTypeArguments().length() != 0; |
| 1528 | for (List<Type> l = interfaces; !sigReq && l.nonEmpty(); l = l.tail) |
| 1529 | sigReq = l.head.getTypeArguments().length() != 0; |
| 1530 | if (sigReq) { |
| 1531 | assert source.allowGenerics(); |
| 1532 | int alenIdx = writeAttr(names.Signature); |
| 1533 | if (typarams.length() != 0) assembleParamsSig(typarams); |
| 1534 | assembleSig(supertype); |
| 1535 | for (List<Type> l = interfaces; l.nonEmpty(); l = l.tail) |
| 1536 | assembleSig(l.head); |
| 1537 | databuf.appendChar(pool.put(sigbuf.toName(names))); |
| 1538 | sigbuf.reset(); |
| 1539 | endAttr(alenIdx); |
| 1540 | acount++; |
| 1541 | } |
| 1542 | |
| 1543 | if (c.sourcefile != null && emitSourceFile) { |
| 1544 | int alenIdx = writeAttr(names.SourceFile); |
| 1545 | // WHM 6/29/1999: Strip file path prefix. We do it here at |
| 1546 | // the last possible moment because the sourcefile may be used |
| 1547 | // elsewhere in error diagnostics. Fixes 4241573. |
| 1548 | //databuf.appendChar(c.pool.put(c.sourcefile)); |
| 1549 | String filename = c.sourcefile.toString(); |
| 1550 | int sepIdx = filename.lastIndexOf(File.separatorChar); |
| 1551 | // Allow '/' as separator on all platforms, e.g., on Win32. |
| 1552 | int slashIdx = filename.lastIndexOf('/'); |
| 1553 | if (slashIdx > sepIdx) sepIdx = slashIdx; |
| 1554 | if (sepIdx >= 0) filename = filename.substring(sepIdx + 1); |
| 1555 | databuf.appendChar(c.pool.put(names.fromString(filename))); |
| 1556 | endAttr(alenIdx); |
| 1557 | acount++; |
| 1558 | } |
| 1559 | |
| 1560 | if (genCrt) { |
| 1561 | // Append SourceID attribute |
| 1562 | int alenIdx = writeAttr(names.SourceID); |
| 1563 | databuf.appendChar(c.pool.put(names.fromString(Long.toString(getLastModified(c.sourcefile))))); |
| 1564 | endAttr(alenIdx); |
| 1565 | acount++; |
| 1566 | // Append CompilationID attribute |
| 1567 | alenIdx = writeAttr(names.CompilationID); |
| 1568 | databuf.appendChar(c.pool.put(names.fromString(Long.toString(System.currentTimeMillis())))); |
| 1569 | endAttr(alenIdx); |
| 1570 | acount++; |
| 1571 | } |
| 1572 | |
| 1573 | acount += writeFlagAttrs(c.flags()); |
| 1574 | acount += writeJavaAnnotations(c.getAnnotationMirrors()); |
| 1575 | acount += writeEnclosingMethodAttribute(c); |
| 1576 | |
| 1577 | poolbuf.appendInt(JAVA_MAGIC); |
| 1578 | poolbuf.appendChar(target.minorVersion); |
| 1579 | poolbuf.appendChar(target.majorVersion); |
| 1580 | |
| 1581 | writePool(c.pool); |
| 1582 | |
| 1583 | if (innerClasses != null) { |
| 1584 | writeInnerClasses(); |
| 1585 | acount++; |
| 1586 | } |
| 1587 | endAttrs(acountIdx, acount); |
| 1588 | |
| 1589 | poolbuf.appendBytes(databuf.elems, 0, databuf.length); |
| 1590 | out.write(poolbuf.elems, 0, poolbuf.length); |
| 1591 | |
| 1592 | pool = c.pool = null; // to conserve space |
| 1593 | } |
| 1594 | |
| 1595 | int adjustFlags(final long flags) { |
| 1596 | int result = (int)flags; |
| 1597 | if ((flags & SYNTHETIC) != 0 && !target.useSyntheticFlag()) |
| 1598 | result &= ~SYNTHETIC; |
| 1599 | if ((flags & ENUM) != 0 && !target.useEnumFlag()) |
| 1600 | result &= ~ENUM; |
| 1601 | if ((flags & ANNOTATION) != 0 && !target.useAnnotationFlag()) |
| 1602 | result &= ~ANNOTATION; |
| 1603 | |
| 1604 | if ((flags & BRIDGE) != 0 && target.useBridgeFlag()) |
| 1605 | result |= ACC_BRIDGE; |
| 1606 | if ((flags & VARARGS) != 0 && target.useVarargsFlag()) |
| 1607 | result |= ACC_VARARGS; |
| 1608 | return result; |
| 1609 | } |
| 1610 | |
| 1611 | long getLastModified(FileObject filename) { |
| 1612 | long mod = 0; |
| 1613 | try { |
| 1614 | mod = filename.getLastModified(); |
| 1615 | } catch (SecurityException e) { |
| 1616 | throw new AssertionError("CRT: couldn't get source file modification date: " + e.getMessage()); |
| 1617 | } |
| 1618 | return mod; |
| 1619 | } |
| 1620 | } |