Mon, 28 Feb 2011 11:48:53 +0000
7015430: Incorrect thrown type determined for unchecked invocations
Summary: Thrown types do not get updated after 15.12.2.8, and do not get erased as per 15.12.2.6
Reviewed-by: jjg, dlsmith
duke@1 | 1 | /* |
jjg@815 | 2 | * Copyright (c) 1999, 2011, 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.util.Set; |
duke@1 | 30 | import java.util.HashSet; |
duke@1 | 31 | |
duke@1 | 32 | import javax.tools.JavaFileManager; |
duke@1 | 33 | import javax.tools.FileObject; |
duke@1 | 34 | import javax.tools.JavaFileObject; |
duke@1 | 35 | |
duke@1 | 36 | import com.sun.tools.javac.code.*; |
jjg@657 | 37 | import com.sun.tools.javac.code.Attribute.RetentionPolicy; |
duke@1 | 38 | import com.sun.tools.javac.code.Symbol.*; |
duke@1 | 39 | import com.sun.tools.javac.code.Type.*; |
jjg@415 | 40 | import com.sun.tools.javac.file.BaseFileObject; |
duke@1 | 41 | import com.sun.tools.javac.util.*; |
duke@1 | 42 | |
duke@1 | 43 | import static com.sun.tools.javac.code.BoundKind.*; |
duke@1 | 44 | import static com.sun.tools.javac.code.Flags.*; |
duke@1 | 45 | import static com.sun.tools.javac.code.Kinds.*; |
duke@1 | 46 | import static com.sun.tools.javac.code.TypeTags.*; |
duke@1 | 47 | import static com.sun.tools.javac.jvm.UninitializedType.*; |
jjg@700 | 48 | import static com.sun.tools.javac.main.OptionName.*; |
duke@1 | 49 | import static javax.tools.StandardLocation.CLASS_OUTPUT; |
duke@1 | 50 | |
jjg@700 | 51 | |
duke@1 | 52 | /** This class provides operations to map an internal symbol table graph |
duke@1 | 53 | * rooted in a ClassSymbol into a classfile. |
duke@1 | 54 | * |
jjg@581 | 55 | * <p><b>This is NOT part of any supported API. |
jjg@581 | 56 | * If you write code that depends on this, you do so at your own risk. |
duke@1 | 57 | * This code and its internal interfaces are subject to change or |
duke@1 | 58 | * deletion without notice.</b> |
duke@1 | 59 | */ |
duke@1 | 60 | public class ClassWriter extends ClassFile { |
duke@1 | 61 | protected static final Context.Key<ClassWriter> classWriterKey = |
duke@1 | 62 | new Context.Key<ClassWriter>(); |
duke@1 | 63 | |
duke@1 | 64 | private final Symtab syms; |
duke@1 | 65 | |
duke@1 | 66 | private final Options options; |
duke@1 | 67 | |
duke@1 | 68 | /** Switch: verbose output. |
duke@1 | 69 | */ |
duke@1 | 70 | private boolean verbose; |
duke@1 | 71 | |
duke@1 | 72 | /** Switch: scrable private names. |
duke@1 | 73 | */ |
duke@1 | 74 | private boolean scramble; |
duke@1 | 75 | |
duke@1 | 76 | /** Switch: scrable private names. |
duke@1 | 77 | */ |
duke@1 | 78 | private boolean scrambleAll; |
duke@1 | 79 | |
duke@1 | 80 | /** Switch: retrofit mode. |
duke@1 | 81 | */ |
duke@1 | 82 | private boolean retrofit; |
duke@1 | 83 | |
duke@1 | 84 | /** Switch: emit source file attribute. |
duke@1 | 85 | */ |
duke@1 | 86 | private boolean emitSourceFile; |
duke@1 | 87 | |
duke@1 | 88 | /** Switch: generate CharacterRangeTable attribute. |
duke@1 | 89 | */ |
duke@1 | 90 | private boolean genCrt; |
duke@1 | 91 | |
duke@1 | 92 | /** Switch: describe the generated stackmap |
duke@1 | 93 | */ |
duke@1 | 94 | boolean debugstackmap; |
duke@1 | 95 | |
duke@1 | 96 | /** |
duke@1 | 97 | * Target class version. |
duke@1 | 98 | */ |
duke@1 | 99 | private Target target; |
duke@1 | 100 | |
duke@1 | 101 | /** |
duke@1 | 102 | * Source language version. |
duke@1 | 103 | */ |
duke@1 | 104 | private Source source; |
duke@1 | 105 | |
duke@1 | 106 | /** Type utilities. */ |
duke@1 | 107 | private Types types; |
duke@1 | 108 | |
duke@1 | 109 | /** The initial sizes of the data and constant pool buffers. |
duke@1 | 110 | * sizes are increased when buffers get full. |
duke@1 | 111 | */ |
duke@1 | 112 | static final int DATA_BUF_SIZE = 0x0fff0; |
duke@1 | 113 | static final int POOL_BUF_SIZE = 0x1fff0; |
duke@1 | 114 | |
duke@1 | 115 | /** An output buffer for member info. |
duke@1 | 116 | */ |
duke@1 | 117 | ByteBuffer databuf = new ByteBuffer(DATA_BUF_SIZE); |
duke@1 | 118 | |
duke@1 | 119 | /** An output buffer for the constant pool. |
duke@1 | 120 | */ |
duke@1 | 121 | ByteBuffer poolbuf = new ByteBuffer(POOL_BUF_SIZE); |
duke@1 | 122 | |
duke@1 | 123 | /** An output buffer for type signatures. |
duke@1 | 124 | */ |
duke@1 | 125 | ByteBuffer sigbuf = new ByteBuffer(); |
duke@1 | 126 | |
duke@1 | 127 | /** The constant pool. |
duke@1 | 128 | */ |
duke@1 | 129 | Pool pool; |
duke@1 | 130 | |
duke@1 | 131 | /** The inner classes to be written, as a set. |
duke@1 | 132 | */ |
duke@1 | 133 | Set<ClassSymbol> innerClasses; |
duke@1 | 134 | |
duke@1 | 135 | /** The inner classes to be written, as a queue where |
duke@1 | 136 | * enclosing classes come first. |
duke@1 | 137 | */ |
duke@1 | 138 | ListBuffer<ClassSymbol> innerClassesQueue; |
duke@1 | 139 | |
duke@1 | 140 | /** The log to use for verbose output. |
duke@1 | 141 | */ |
duke@1 | 142 | private final Log log; |
duke@1 | 143 | |
duke@1 | 144 | /** The name table. */ |
jjg@113 | 145 | private final Names names; |
duke@1 | 146 | |
duke@1 | 147 | /** Access to files. */ |
duke@1 | 148 | private final JavaFileManager fileManager; |
duke@1 | 149 | |
duke@1 | 150 | /** The tags and constants used in compressed stackmap. */ |
duke@1 | 151 | static final int SAME_FRAME_SIZE = 64; |
duke@1 | 152 | static final int SAME_LOCALS_1_STACK_ITEM_EXTENDED = 247; |
duke@1 | 153 | static final int SAME_FRAME_EXTENDED = 251; |
duke@1 | 154 | static final int FULL_FRAME = 255; |
duke@1 | 155 | static final int MAX_LOCAL_LENGTH_DIFF = 4; |
duke@1 | 156 | |
duke@1 | 157 | /** Get the ClassWriter instance for this context. */ |
duke@1 | 158 | public static ClassWriter instance(Context context) { |
duke@1 | 159 | ClassWriter instance = context.get(classWriterKey); |
duke@1 | 160 | if (instance == null) |
duke@1 | 161 | instance = new ClassWriter(context); |
duke@1 | 162 | return instance; |
duke@1 | 163 | } |
duke@1 | 164 | |
duke@1 | 165 | /** Construct a class writer, given an options table. |
duke@1 | 166 | */ |
duke@1 | 167 | private ClassWriter(Context context) { |
duke@1 | 168 | context.put(classWriterKey, this); |
duke@1 | 169 | |
duke@1 | 170 | log = Log.instance(context); |
jjg@113 | 171 | names = Names.instance(context); |
duke@1 | 172 | syms = Symtab.instance(context); |
duke@1 | 173 | options = Options.instance(context); |
duke@1 | 174 | target = Target.instance(context); |
duke@1 | 175 | source = Source.instance(context); |
duke@1 | 176 | types = Types.instance(context); |
duke@1 | 177 | fileManager = context.get(JavaFileManager.class); |
duke@1 | 178 | |
jjg@700 | 179 | verbose = options.isSet(VERBOSE); |
jjg@700 | 180 | scramble = options.isSet("-scramble"); |
jjg@700 | 181 | scrambleAll = options.isSet("-scrambleAll"); |
jjg@700 | 182 | retrofit = options.isSet("-retrofit"); |
jjg@700 | 183 | genCrt = options.isSet(XJCOV); |
jjg@700 | 184 | debugstackmap = options.isSet("debugstackmap"); |
duke@1 | 185 | |
jjg@700 | 186 | emitSourceFile = options.isUnset(G_CUSTOM) || |
jjg@700 | 187 | options.isSet(G_CUSTOM, "source"); |
duke@1 | 188 | |
duke@1 | 189 | String dumpModFlags = options.get("dumpmodifiers"); |
duke@1 | 190 | dumpClassModifiers = |
duke@1 | 191 | (dumpModFlags != null && dumpModFlags.indexOf('c') != -1); |
duke@1 | 192 | dumpFieldModifiers = |
duke@1 | 193 | (dumpModFlags != null && dumpModFlags.indexOf('f') != -1); |
duke@1 | 194 | dumpInnerClassModifiers = |
duke@1 | 195 | (dumpModFlags != null && dumpModFlags.indexOf('i') != -1); |
duke@1 | 196 | dumpMethodModifiers = |
duke@1 | 197 | (dumpModFlags != null && dumpModFlags.indexOf('m') != -1); |
duke@1 | 198 | } |
duke@1 | 199 | |
duke@1 | 200 | /****************************************************************** |
duke@1 | 201 | * Diagnostics: dump generated class names and modifiers |
duke@1 | 202 | ******************************************************************/ |
duke@1 | 203 | |
duke@1 | 204 | /** Value of option 'dumpmodifiers' is a string |
duke@1 | 205 | * indicating which modifiers should be dumped for debugging: |
duke@1 | 206 | * 'c' -- classes |
duke@1 | 207 | * 'f' -- fields |
duke@1 | 208 | * 'i' -- innerclass attributes |
duke@1 | 209 | * 'm' -- methods |
duke@1 | 210 | * For example, to dump everything: |
duke@1 | 211 | * javac -XDdumpmodifiers=cifm MyProg.java |
duke@1 | 212 | */ |
duke@1 | 213 | private final boolean dumpClassModifiers; // -XDdumpmodifiers=c |
duke@1 | 214 | private final boolean dumpFieldModifiers; // -XDdumpmodifiers=f |
duke@1 | 215 | private final boolean dumpInnerClassModifiers; // -XDdumpmodifiers=i |
duke@1 | 216 | private final boolean dumpMethodModifiers; // -XDdumpmodifiers=m |
duke@1 | 217 | |
duke@1 | 218 | |
duke@1 | 219 | /** Return flags as a string, separated by " ". |
duke@1 | 220 | */ |
duke@1 | 221 | public static String flagNames(long flags) { |
jjg@816 | 222 | StringBuilder sbuf = new StringBuilder(); |
duke@1 | 223 | int i = 0; |
duke@1 | 224 | long f = flags & StandardFlags; |
duke@1 | 225 | while (f != 0) { |
jjg@816 | 226 | if ((f & 1) != 0) { |
jjg@816 | 227 | sbuf.append(" "); |
jjg@816 | 228 | sbuf.append(flagName[i]); |
jjg@816 | 229 | } |
duke@1 | 230 | f = f >> 1; |
duke@1 | 231 | i++; |
duke@1 | 232 | } |
duke@1 | 233 | return sbuf.toString(); |
duke@1 | 234 | } |
duke@1 | 235 | //where |
duke@1 | 236 | private final static String[] flagName = { |
duke@1 | 237 | "PUBLIC", "PRIVATE", "PROTECTED", "STATIC", "FINAL", |
duke@1 | 238 | "SUPER", "VOLATILE", "TRANSIENT", "NATIVE", "INTERFACE", |
duke@1 | 239 | "ABSTRACT", "STRICTFP"}; |
duke@1 | 240 | |
duke@1 | 241 | /****************************************************************** |
duke@1 | 242 | * Output routines |
duke@1 | 243 | ******************************************************************/ |
duke@1 | 244 | |
duke@1 | 245 | /** Write a character into given byte buffer; |
duke@1 | 246 | * byte buffer will not be grown. |
duke@1 | 247 | */ |
duke@1 | 248 | void putChar(ByteBuffer buf, int op, int x) { |
duke@1 | 249 | buf.elems[op ] = (byte)((x >> 8) & 0xFF); |
duke@1 | 250 | buf.elems[op+1] = (byte)((x ) & 0xFF); |
duke@1 | 251 | } |
duke@1 | 252 | |
duke@1 | 253 | /** Write an integer into given byte buffer; |
duke@1 | 254 | * byte buffer will not be grown. |
duke@1 | 255 | */ |
duke@1 | 256 | void putInt(ByteBuffer buf, int adr, int x) { |
duke@1 | 257 | buf.elems[adr ] = (byte)((x >> 24) & 0xFF); |
duke@1 | 258 | buf.elems[adr+1] = (byte)((x >> 16) & 0xFF); |
duke@1 | 259 | buf.elems[adr+2] = (byte)((x >> 8) & 0xFF); |
duke@1 | 260 | buf.elems[adr+3] = (byte)((x ) & 0xFF); |
duke@1 | 261 | } |
duke@1 | 262 | |
duke@1 | 263 | /****************************************************************** |
duke@1 | 264 | * Signature Generation |
duke@1 | 265 | ******************************************************************/ |
duke@1 | 266 | |
duke@1 | 267 | /** Assemble signature of given type in string buffer. |
duke@1 | 268 | */ |
duke@1 | 269 | void assembleSig(Type type) { |
duke@1 | 270 | switch (type.tag) { |
duke@1 | 271 | case BYTE: |
duke@1 | 272 | sigbuf.appendByte('B'); |
duke@1 | 273 | break; |
duke@1 | 274 | case SHORT: |
duke@1 | 275 | sigbuf.appendByte('S'); |
duke@1 | 276 | break; |
duke@1 | 277 | case CHAR: |
duke@1 | 278 | sigbuf.appendByte('C'); |
duke@1 | 279 | break; |
duke@1 | 280 | case INT: |
duke@1 | 281 | sigbuf.appendByte('I'); |
duke@1 | 282 | break; |
duke@1 | 283 | case LONG: |
duke@1 | 284 | sigbuf.appendByte('J'); |
duke@1 | 285 | break; |
duke@1 | 286 | case FLOAT: |
duke@1 | 287 | sigbuf.appendByte('F'); |
duke@1 | 288 | break; |
duke@1 | 289 | case DOUBLE: |
duke@1 | 290 | sigbuf.appendByte('D'); |
duke@1 | 291 | break; |
duke@1 | 292 | case BOOLEAN: |
duke@1 | 293 | sigbuf.appendByte('Z'); |
duke@1 | 294 | break; |
duke@1 | 295 | case VOID: |
duke@1 | 296 | sigbuf.appendByte('V'); |
duke@1 | 297 | break; |
duke@1 | 298 | case CLASS: |
duke@1 | 299 | sigbuf.appendByte('L'); |
duke@1 | 300 | assembleClassSig(type); |
duke@1 | 301 | sigbuf.appendByte(';'); |
duke@1 | 302 | break; |
duke@1 | 303 | case ARRAY: |
duke@1 | 304 | ArrayType at = (ArrayType)type; |
duke@1 | 305 | sigbuf.appendByte('['); |
duke@1 | 306 | assembleSig(at.elemtype); |
duke@1 | 307 | break; |
duke@1 | 308 | case METHOD: |
duke@1 | 309 | MethodType mt = (MethodType)type; |
duke@1 | 310 | sigbuf.appendByte('('); |
duke@1 | 311 | assembleSig(mt.argtypes); |
duke@1 | 312 | sigbuf.appendByte(')'); |
duke@1 | 313 | assembleSig(mt.restype); |
duke@1 | 314 | if (hasTypeVar(mt.thrown)) { |
duke@1 | 315 | for (List<Type> l = mt.thrown; l.nonEmpty(); l = l.tail) { |
duke@1 | 316 | sigbuf.appendByte('^'); |
duke@1 | 317 | assembleSig(l.head); |
duke@1 | 318 | } |
duke@1 | 319 | } |
duke@1 | 320 | break; |
duke@1 | 321 | case WILDCARD: { |
duke@1 | 322 | WildcardType ta = (WildcardType) type; |
duke@1 | 323 | switch (ta.kind) { |
duke@1 | 324 | case SUPER: |
duke@1 | 325 | sigbuf.appendByte('-'); |
duke@1 | 326 | assembleSig(ta.type); |
duke@1 | 327 | break; |
duke@1 | 328 | case EXTENDS: |
duke@1 | 329 | sigbuf.appendByte('+'); |
duke@1 | 330 | assembleSig(ta.type); |
duke@1 | 331 | break; |
duke@1 | 332 | case UNBOUND: |
duke@1 | 333 | sigbuf.appendByte('*'); |
duke@1 | 334 | break; |
duke@1 | 335 | default: |
duke@1 | 336 | throw new AssertionError(ta.kind); |
duke@1 | 337 | } |
duke@1 | 338 | break; |
duke@1 | 339 | } |
duke@1 | 340 | case TYPEVAR: |
duke@1 | 341 | sigbuf.appendByte('T'); |
duke@1 | 342 | sigbuf.appendName(type.tsym.name); |
duke@1 | 343 | sigbuf.appendByte(';'); |
duke@1 | 344 | break; |
duke@1 | 345 | case FORALL: |
duke@1 | 346 | ForAll ft = (ForAll)type; |
duke@1 | 347 | assembleParamsSig(ft.tvars); |
duke@1 | 348 | assembleSig(ft.qtype); |
duke@1 | 349 | break; |
duke@1 | 350 | case UNINITIALIZED_THIS: |
duke@1 | 351 | case UNINITIALIZED_OBJECT: |
duke@1 | 352 | // we don't yet have a spec for uninitialized types in the |
duke@1 | 353 | // local variable table |
duke@1 | 354 | assembleSig(types.erasure(((UninitializedType)type).qtype)); |
duke@1 | 355 | break; |
duke@1 | 356 | default: |
duke@1 | 357 | throw new AssertionError("typeSig " + type.tag); |
duke@1 | 358 | } |
duke@1 | 359 | } |
duke@1 | 360 | |
duke@1 | 361 | boolean hasTypeVar(List<Type> l) { |
duke@1 | 362 | while (l.nonEmpty()) { |
duke@1 | 363 | if (l.head.tag == TypeTags.TYPEVAR) return true; |
duke@1 | 364 | l = l.tail; |
duke@1 | 365 | } |
duke@1 | 366 | return false; |
duke@1 | 367 | } |
duke@1 | 368 | |
duke@1 | 369 | void assembleClassSig(Type type) { |
duke@1 | 370 | ClassType ct = (ClassType)type; |
duke@1 | 371 | ClassSymbol c = (ClassSymbol)ct.tsym; |
duke@1 | 372 | enterInner(c); |
duke@1 | 373 | Type outer = ct.getEnclosingType(); |
duke@1 | 374 | if (outer.allparams().nonEmpty()) { |
duke@1 | 375 | boolean rawOuter = |
duke@1 | 376 | c.owner.kind == MTH || // either a local class |
duke@1 | 377 | c.name == names.empty; // or anonymous |
duke@1 | 378 | assembleClassSig(rawOuter |
duke@1 | 379 | ? types.erasure(outer) |
duke@1 | 380 | : outer); |
duke@1 | 381 | sigbuf.appendByte('.'); |
jjg@816 | 382 | Assert.check(c.flatname.startsWith(c.owner.enclClass().flatname)); |
duke@1 | 383 | sigbuf.appendName(rawOuter |
jjg@113 | 384 | ? c.flatname.subName(c.owner.enclClass().flatname.getByteLength()+1,c.flatname.getByteLength()) |
duke@1 | 385 | : c.name); |
duke@1 | 386 | } else { |
duke@1 | 387 | sigbuf.appendBytes(externalize(c.flatname)); |
duke@1 | 388 | } |
duke@1 | 389 | if (ct.getTypeArguments().nonEmpty()) { |
duke@1 | 390 | sigbuf.appendByte('<'); |
duke@1 | 391 | assembleSig(ct.getTypeArguments()); |
duke@1 | 392 | sigbuf.appendByte('>'); |
duke@1 | 393 | } |
duke@1 | 394 | } |
duke@1 | 395 | |
duke@1 | 396 | |
duke@1 | 397 | void assembleSig(List<Type> types) { |
duke@1 | 398 | for (List<Type> ts = types; ts.nonEmpty(); ts = ts.tail) |
duke@1 | 399 | assembleSig(ts.head); |
duke@1 | 400 | } |
duke@1 | 401 | |
duke@1 | 402 | void assembleParamsSig(List<Type> typarams) { |
duke@1 | 403 | sigbuf.appendByte('<'); |
duke@1 | 404 | for (List<Type> ts = typarams; ts.nonEmpty(); ts = ts.tail) { |
duke@1 | 405 | TypeVar tvar = (TypeVar)ts.head; |
duke@1 | 406 | sigbuf.appendName(tvar.tsym.name); |
duke@1 | 407 | List<Type> bounds = types.getBounds(tvar); |
duke@1 | 408 | if ((bounds.head.tsym.flags() & INTERFACE) != 0) { |
duke@1 | 409 | sigbuf.appendByte(':'); |
duke@1 | 410 | } |
duke@1 | 411 | for (List<Type> l = bounds; l.nonEmpty(); l = l.tail) { |
duke@1 | 412 | sigbuf.appendByte(':'); |
duke@1 | 413 | assembleSig(l.head); |
duke@1 | 414 | } |
duke@1 | 415 | } |
duke@1 | 416 | sigbuf.appendByte('>'); |
duke@1 | 417 | } |
duke@1 | 418 | |
duke@1 | 419 | /** Return signature of given type |
duke@1 | 420 | */ |
duke@1 | 421 | Name typeSig(Type type) { |
jjg@816 | 422 | Assert.check(sigbuf.length == 0); |
duke@1 | 423 | //- System.out.println(" ? " + type); |
duke@1 | 424 | assembleSig(type); |
duke@1 | 425 | Name n = sigbuf.toName(names); |
duke@1 | 426 | sigbuf.reset(); |
duke@1 | 427 | //- System.out.println(" " + n); |
duke@1 | 428 | return n; |
duke@1 | 429 | } |
duke@1 | 430 | |
duke@1 | 431 | /** Given a type t, return the extended class name of its erasure in |
duke@1 | 432 | * external representation. |
duke@1 | 433 | */ |
duke@1 | 434 | public Name xClassName(Type t) { |
duke@1 | 435 | if (t.tag == CLASS) { |
duke@1 | 436 | return names.fromUtf(externalize(t.tsym.flatName())); |
duke@1 | 437 | } else if (t.tag == ARRAY) { |
duke@1 | 438 | return typeSig(types.erasure(t)); |
duke@1 | 439 | } else { |
duke@1 | 440 | throw new AssertionError("xClassName"); |
duke@1 | 441 | } |
duke@1 | 442 | } |
duke@1 | 443 | |
duke@1 | 444 | /****************************************************************** |
duke@1 | 445 | * Writing the Constant Pool |
duke@1 | 446 | ******************************************************************/ |
duke@1 | 447 | |
duke@1 | 448 | /** Thrown when the constant pool is over full. |
duke@1 | 449 | */ |
duke@1 | 450 | public static class PoolOverflow extends Exception { |
duke@1 | 451 | private static final long serialVersionUID = 0; |
duke@1 | 452 | public PoolOverflow() {} |
duke@1 | 453 | } |
duke@1 | 454 | public static class StringOverflow extends Exception { |
duke@1 | 455 | private static final long serialVersionUID = 0; |
duke@1 | 456 | public final String value; |
duke@1 | 457 | public StringOverflow(String s) { |
duke@1 | 458 | value = s; |
duke@1 | 459 | } |
duke@1 | 460 | } |
duke@1 | 461 | |
duke@1 | 462 | /** Write constant pool to pool buffer. |
duke@1 | 463 | * Note: during writing, constant pool |
duke@1 | 464 | * might grow since some parts of constants still need to be entered. |
duke@1 | 465 | */ |
duke@1 | 466 | void writePool(Pool pool) throws PoolOverflow, StringOverflow { |
duke@1 | 467 | int poolCountIdx = poolbuf.length; |
duke@1 | 468 | poolbuf.appendChar(0); |
duke@1 | 469 | int i = 1; |
duke@1 | 470 | while (i < pool.pp) { |
duke@1 | 471 | Object value = pool.pool[i]; |
jjg@816 | 472 | Assert.checkNonNull(value); |
duke@1 | 473 | if (value instanceof Pool.Method) |
duke@1 | 474 | value = ((Pool.Method)value).m; |
duke@1 | 475 | else if (value instanceof Pool.Variable) |
duke@1 | 476 | value = ((Pool.Variable)value).v; |
duke@1 | 477 | |
duke@1 | 478 | if (value instanceof MethodSymbol) { |
duke@1 | 479 | MethodSymbol m = (MethodSymbol)value; |
duke@1 | 480 | poolbuf.appendByte((m.owner.flags() & INTERFACE) != 0 |
duke@1 | 481 | ? CONSTANT_InterfaceMethodref |
duke@1 | 482 | : CONSTANT_Methodref); |
duke@1 | 483 | poolbuf.appendChar(pool.put(m.owner)); |
duke@1 | 484 | poolbuf.appendChar(pool.put(nameType(m))); |
duke@1 | 485 | } else if (value instanceof VarSymbol) { |
duke@1 | 486 | VarSymbol v = (VarSymbol)value; |
duke@1 | 487 | poolbuf.appendByte(CONSTANT_Fieldref); |
duke@1 | 488 | poolbuf.appendChar(pool.put(v.owner)); |
duke@1 | 489 | poolbuf.appendChar(pool.put(nameType(v))); |
duke@1 | 490 | } else if (value instanceof Name) { |
duke@1 | 491 | poolbuf.appendByte(CONSTANT_Utf8); |
duke@1 | 492 | byte[] bs = ((Name)value).toUtf(); |
duke@1 | 493 | poolbuf.appendChar(bs.length); |
duke@1 | 494 | poolbuf.appendBytes(bs, 0, bs.length); |
duke@1 | 495 | if (bs.length > Pool.MAX_STRING_LENGTH) |
duke@1 | 496 | throw new StringOverflow(value.toString()); |
duke@1 | 497 | } else if (value instanceof ClassSymbol) { |
duke@1 | 498 | ClassSymbol c = (ClassSymbol)value; |
duke@1 | 499 | if (c.owner.kind == TYP) pool.put(c.owner); |
duke@1 | 500 | poolbuf.appendByte(CONSTANT_Class); |
duke@1 | 501 | if (c.type.tag == ARRAY) { |
duke@1 | 502 | poolbuf.appendChar(pool.put(typeSig(c.type))); |
duke@1 | 503 | } else { |
duke@1 | 504 | poolbuf.appendChar(pool.put(names.fromUtf(externalize(c.flatname)))); |
duke@1 | 505 | enterInner(c); |
duke@1 | 506 | } |
duke@1 | 507 | } else if (value instanceof NameAndType) { |
duke@1 | 508 | NameAndType nt = (NameAndType)value; |
duke@1 | 509 | poolbuf.appendByte(CONSTANT_NameandType); |
duke@1 | 510 | poolbuf.appendChar(pool.put(nt.name)); |
duke@1 | 511 | poolbuf.appendChar(pool.put(typeSig(nt.type))); |
duke@1 | 512 | } else if (value instanceof Integer) { |
duke@1 | 513 | poolbuf.appendByte(CONSTANT_Integer); |
duke@1 | 514 | poolbuf.appendInt(((Integer)value).intValue()); |
duke@1 | 515 | } else if (value instanceof Long) { |
duke@1 | 516 | poolbuf.appendByte(CONSTANT_Long); |
duke@1 | 517 | poolbuf.appendLong(((Long)value).longValue()); |
duke@1 | 518 | i++; |
duke@1 | 519 | } else if (value instanceof Float) { |
duke@1 | 520 | poolbuf.appendByte(CONSTANT_Float); |
duke@1 | 521 | poolbuf.appendFloat(((Float)value).floatValue()); |
duke@1 | 522 | } else if (value instanceof Double) { |
duke@1 | 523 | poolbuf.appendByte(CONSTANT_Double); |
duke@1 | 524 | poolbuf.appendDouble(((Double)value).doubleValue()); |
duke@1 | 525 | i++; |
duke@1 | 526 | } else if (value instanceof String) { |
duke@1 | 527 | poolbuf.appendByte(CONSTANT_String); |
duke@1 | 528 | poolbuf.appendChar(pool.put(names.fromString((String)value))); |
duke@1 | 529 | } else if (value instanceof Type) { |
duke@1 | 530 | Type type = (Type)value; |
duke@1 | 531 | if (type.tag == CLASS) enterInner((ClassSymbol)type.tsym); |
duke@1 | 532 | poolbuf.appendByte(CONSTANT_Class); |
duke@1 | 533 | poolbuf.appendChar(pool.put(xClassName(type))); |
duke@1 | 534 | } else { |
jjg@816 | 535 | Assert.error("writePool " + value); |
duke@1 | 536 | } |
duke@1 | 537 | i++; |
duke@1 | 538 | } |
duke@1 | 539 | if (pool.pp > Pool.MAX_ENTRIES) |
duke@1 | 540 | throw new PoolOverflow(); |
duke@1 | 541 | putChar(poolbuf, poolCountIdx, pool.pp); |
duke@1 | 542 | } |
duke@1 | 543 | |
duke@1 | 544 | /** Given a field, return its name. |
duke@1 | 545 | */ |
duke@1 | 546 | Name fieldName(Symbol sym) { |
duke@1 | 547 | if (scramble && (sym.flags() & PRIVATE) != 0 || |
duke@1 | 548 | scrambleAll && (sym.flags() & (PROTECTED | PUBLIC)) == 0) |
jjg@113 | 549 | return names.fromString("_$" + sym.name.getIndex()); |
duke@1 | 550 | else |
duke@1 | 551 | return sym.name; |
duke@1 | 552 | } |
duke@1 | 553 | |
duke@1 | 554 | /** Given a symbol, return its name-and-type. |
duke@1 | 555 | */ |
duke@1 | 556 | NameAndType nameType(Symbol sym) { |
duke@1 | 557 | return new NameAndType(fieldName(sym), |
duke@1 | 558 | retrofit |
duke@1 | 559 | ? sym.erasure(types) |
duke@1 | 560 | : sym.externalType(types)); |
duke@1 | 561 | // if we retrofit, then the NameAndType has been read in as is |
duke@1 | 562 | // and no change is necessary. If we compile normally, the |
duke@1 | 563 | // NameAndType is generated from a symbol reference, and the |
duke@1 | 564 | // adjustment of adding an additional this$n parameter needs to be made. |
duke@1 | 565 | } |
duke@1 | 566 | |
duke@1 | 567 | /****************************************************************** |
duke@1 | 568 | * Writing Attributes |
duke@1 | 569 | ******************************************************************/ |
duke@1 | 570 | |
duke@1 | 571 | /** Write header for an attribute to data buffer and return |
duke@1 | 572 | * position past attribute length index. |
duke@1 | 573 | */ |
duke@1 | 574 | int writeAttr(Name attrName) { |
duke@1 | 575 | databuf.appendChar(pool.put(attrName)); |
duke@1 | 576 | databuf.appendInt(0); |
duke@1 | 577 | return databuf.length; |
duke@1 | 578 | } |
duke@1 | 579 | |
duke@1 | 580 | /** Fill in attribute length. |
duke@1 | 581 | */ |
duke@1 | 582 | void endAttr(int index) { |
duke@1 | 583 | putInt(databuf, index - 4, databuf.length - index); |
duke@1 | 584 | } |
duke@1 | 585 | |
duke@1 | 586 | /** Leave space for attribute count and return index for |
duke@1 | 587 | * number of attributes field. |
duke@1 | 588 | */ |
duke@1 | 589 | int beginAttrs() { |
duke@1 | 590 | databuf.appendChar(0); |
duke@1 | 591 | return databuf.length; |
duke@1 | 592 | } |
duke@1 | 593 | |
duke@1 | 594 | /** Fill in number of attributes. |
duke@1 | 595 | */ |
duke@1 | 596 | void endAttrs(int index, int count) { |
duke@1 | 597 | putChar(databuf, index - 2, count); |
duke@1 | 598 | } |
duke@1 | 599 | |
duke@1 | 600 | /** Write the EnclosingMethod attribute if needed. |
duke@1 | 601 | * Returns the number of attributes written (0 or 1). |
duke@1 | 602 | */ |
duke@1 | 603 | int writeEnclosingMethodAttribute(ClassSymbol c) { |
duke@1 | 604 | if (!target.hasEnclosingMethodAttribute() || |
duke@1 | 605 | c.owner.kind != MTH && // neither a local class |
duke@1 | 606 | c.name != names.empty) // nor anonymous |
duke@1 | 607 | return 0; |
duke@1 | 608 | |
duke@1 | 609 | int alenIdx = writeAttr(names.EnclosingMethod); |
duke@1 | 610 | ClassSymbol enclClass = c.owner.enclClass(); |
duke@1 | 611 | MethodSymbol enclMethod = |
duke@1 | 612 | (c.owner.type == null // local to init block |
duke@1 | 613 | || c.owner.kind != MTH) // or member init |
duke@1 | 614 | ? null |
duke@1 | 615 | : (MethodSymbol)c.owner; |
duke@1 | 616 | databuf.appendChar(pool.put(enclClass)); |
duke@1 | 617 | databuf.appendChar(enclMethod == null ? 0 : pool.put(nameType(c.owner))); |
duke@1 | 618 | endAttr(alenIdx); |
duke@1 | 619 | return 1; |
duke@1 | 620 | } |
duke@1 | 621 | |
duke@1 | 622 | /** Write flag attributes; return number of attributes written. |
duke@1 | 623 | */ |
duke@1 | 624 | int writeFlagAttrs(long flags) { |
duke@1 | 625 | int acount = 0; |
duke@1 | 626 | if ((flags & DEPRECATED) != 0) { |
duke@1 | 627 | int alenIdx = writeAttr(names.Deprecated); |
duke@1 | 628 | endAttr(alenIdx); |
duke@1 | 629 | acount++; |
duke@1 | 630 | } |
duke@1 | 631 | if ((flags & ENUM) != 0 && !target.useEnumFlag()) { |
duke@1 | 632 | int alenIdx = writeAttr(names.Enum); |
duke@1 | 633 | endAttr(alenIdx); |
duke@1 | 634 | acount++; |
duke@1 | 635 | } |
duke@1 | 636 | if ((flags & SYNTHETIC) != 0 && !target.useSyntheticFlag()) { |
duke@1 | 637 | int alenIdx = writeAttr(names.Synthetic); |
duke@1 | 638 | endAttr(alenIdx); |
duke@1 | 639 | acount++; |
duke@1 | 640 | } |
duke@1 | 641 | if ((flags & BRIDGE) != 0 && !target.useBridgeFlag()) { |
duke@1 | 642 | int alenIdx = writeAttr(names.Bridge); |
duke@1 | 643 | endAttr(alenIdx); |
duke@1 | 644 | acount++; |
duke@1 | 645 | } |
duke@1 | 646 | if ((flags & VARARGS) != 0 && !target.useVarargsFlag()) { |
duke@1 | 647 | int alenIdx = writeAttr(names.Varargs); |
duke@1 | 648 | endAttr(alenIdx); |
duke@1 | 649 | acount++; |
duke@1 | 650 | } |
duke@1 | 651 | if ((flags & ANNOTATION) != 0 && !target.useAnnotationFlag()) { |
duke@1 | 652 | int alenIdx = writeAttr(names.Annotation); |
duke@1 | 653 | endAttr(alenIdx); |
duke@1 | 654 | acount++; |
duke@1 | 655 | } |
duke@1 | 656 | return acount; |
duke@1 | 657 | } |
duke@1 | 658 | |
duke@1 | 659 | /** Write member (field or method) attributes; |
duke@1 | 660 | * return number of attributes written. |
duke@1 | 661 | */ |
duke@1 | 662 | int writeMemberAttrs(Symbol sym) { |
duke@1 | 663 | int acount = writeFlagAttrs(sym.flags()); |
duke@1 | 664 | long flags = sym.flags(); |
duke@1 | 665 | if (source.allowGenerics() && |
duke@1 | 666 | (flags & (SYNTHETIC|BRIDGE)) != SYNTHETIC && |
duke@1 | 667 | (flags & ANONCONSTR) == 0 && |
duke@1 | 668 | (!types.isSameType(sym.type, sym.erasure(types)) || |
duke@1 | 669 | hasTypeVar(sym.type.getThrownTypes()))) { |
duke@1 | 670 | // note that a local class with captured variables |
duke@1 | 671 | // will get a signature attribute |
duke@1 | 672 | int alenIdx = writeAttr(names.Signature); |
duke@1 | 673 | databuf.appendChar(pool.put(typeSig(sym.type))); |
duke@1 | 674 | endAttr(alenIdx); |
duke@1 | 675 | acount++; |
duke@1 | 676 | } |
duke@1 | 677 | acount += writeJavaAnnotations(sym.getAnnotationMirrors()); |
duke@1 | 678 | return acount; |
duke@1 | 679 | } |
duke@1 | 680 | |
duke@1 | 681 | /** Write method parameter annotations; |
duke@1 | 682 | * return number of attributes written. |
duke@1 | 683 | */ |
duke@1 | 684 | int writeParameterAttrs(MethodSymbol m) { |
duke@1 | 685 | boolean hasVisible = false; |
duke@1 | 686 | boolean hasInvisible = false; |
duke@1 | 687 | if (m.params != null) for (VarSymbol s : m.params) { |
duke@1 | 688 | for (Attribute.Compound a : s.getAnnotationMirrors()) { |
jjg@657 | 689 | switch (types.getRetention(a)) { |
duke@1 | 690 | case SOURCE: break; |
duke@1 | 691 | case CLASS: hasInvisible = true; break; |
duke@1 | 692 | case RUNTIME: hasVisible = true; break; |
duke@1 | 693 | default: ;// /* fail soft */ throw new AssertionError(vis); |
duke@1 | 694 | } |
duke@1 | 695 | } |
duke@1 | 696 | } |
duke@1 | 697 | |
duke@1 | 698 | int attrCount = 0; |
duke@1 | 699 | if (hasVisible) { |
duke@1 | 700 | int attrIndex = writeAttr(names.RuntimeVisibleParameterAnnotations); |
duke@1 | 701 | databuf.appendByte(m.params.length()); |
duke@1 | 702 | for (VarSymbol s : m.params) { |
duke@1 | 703 | ListBuffer<Attribute.Compound> buf = new ListBuffer<Attribute.Compound>(); |
duke@1 | 704 | for (Attribute.Compound a : s.getAnnotationMirrors()) |
jjg@657 | 705 | if (types.getRetention(a) == RetentionPolicy.RUNTIME) |
duke@1 | 706 | buf.append(a); |
duke@1 | 707 | databuf.appendChar(buf.length()); |
duke@1 | 708 | for (Attribute.Compound a : buf) |
duke@1 | 709 | writeCompoundAttribute(a); |
duke@1 | 710 | } |
duke@1 | 711 | endAttr(attrIndex); |
duke@1 | 712 | attrCount++; |
duke@1 | 713 | } |
duke@1 | 714 | if (hasInvisible) { |
duke@1 | 715 | int attrIndex = writeAttr(names.RuntimeInvisibleParameterAnnotations); |
duke@1 | 716 | databuf.appendByte(m.params.length()); |
duke@1 | 717 | for (VarSymbol s : m.params) { |
duke@1 | 718 | ListBuffer<Attribute.Compound> buf = new ListBuffer<Attribute.Compound>(); |
duke@1 | 719 | for (Attribute.Compound a : s.getAnnotationMirrors()) |
jjg@657 | 720 | if (types.getRetention(a) == RetentionPolicy.CLASS) |
duke@1 | 721 | buf.append(a); |
duke@1 | 722 | databuf.appendChar(buf.length()); |
duke@1 | 723 | for (Attribute.Compound a : buf) |
duke@1 | 724 | writeCompoundAttribute(a); |
duke@1 | 725 | } |
duke@1 | 726 | endAttr(attrIndex); |
duke@1 | 727 | attrCount++; |
duke@1 | 728 | } |
duke@1 | 729 | return attrCount; |
duke@1 | 730 | } |
duke@1 | 731 | |
duke@1 | 732 | /********************************************************************** |
duke@1 | 733 | * Writing Java-language annotations (aka metadata, attributes) |
duke@1 | 734 | **********************************************************************/ |
duke@1 | 735 | |
duke@1 | 736 | /** Write Java-language annotations; return number of JVM |
duke@1 | 737 | * attributes written (zero or one). |
duke@1 | 738 | */ |
duke@1 | 739 | int writeJavaAnnotations(List<Attribute.Compound> attrs) { |
duke@1 | 740 | if (attrs.isEmpty()) return 0; |
duke@1 | 741 | ListBuffer<Attribute.Compound> visibles = new ListBuffer<Attribute.Compound>(); |
duke@1 | 742 | ListBuffer<Attribute.Compound> invisibles = new ListBuffer<Attribute.Compound>(); |
duke@1 | 743 | for (Attribute.Compound a : attrs) { |
jjg@657 | 744 | switch (types.getRetention(a)) { |
duke@1 | 745 | case SOURCE: break; |
duke@1 | 746 | case CLASS: invisibles.append(a); break; |
duke@1 | 747 | case RUNTIME: visibles.append(a); break; |
duke@1 | 748 | default: ;// /* fail soft */ throw new AssertionError(vis); |
duke@1 | 749 | } |
duke@1 | 750 | } |
duke@1 | 751 | |
duke@1 | 752 | int attrCount = 0; |
duke@1 | 753 | if (visibles.length() != 0) { |
duke@1 | 754 | int attrIndex = writeAttr(names.RuntimeVisibleAnnotations); |
duke@1 | 755 | databuf.appendChar(visibles.length()); |
duke@1 | 756 | for (Attribute.Compound a : visibles) |
duke@1 | 757 | writeCompoundAttribute(a); |
duke@1 | 758 | endAttr(attrIndex); |
duke@1 | 759 | attrCount++; |
duke@1 | 760 | } |
duke@1 | 761 | if (invisibles.length() != 0) { |
duke@1 | 762 | int attrIndex = writeAttr(names.RuntimeInvisibleAnnotations); |
duke@1 | 763 | databuf.appendChar(invisibles.length()); |
duke@1 | 764 | for (Attribute.Compound a : invisibles) |
duke@1 | 765 | writeCompoundAttribute(a); |
duke@1 | 766 | endAttr(attrIndex); |
duke@1 | 767 | attrCount++; |
duke@1 | 768 | } |
duke@1 | 769 | return attrCount; |
duke@1 | 770 | } |
duke@1 | 771 | |
duke@1 | 772 | /** A visitor to write an attribute including its leading |
duke@1 | 773 | * single-character marker. |
duke@1 | 774 | */ |
duke@1 | 775 | class AttributeWriter implements Attribute.Visitor { |
duke@1 | 776 | public void visitConstant(Attribute.Constant _value) { |
duke@1 | 777 | Object value = _value.value; |
duke@1 | 778 | switch (_value.type.tag) { |
duke@1 | 779 | case BYTE: |
duke@1 | 780 | databuf.appendByte('B'); |
duke@1 | 781 | break; |
duke@1 | 782 | case CHAR: |
duke@1 | 783 | databuf.appendByte('C'); |
duke@1 | 784 | break; |
duke@1 | 785 | case SHORT: |
duke@1 | 786 | databuf.appendByte('S'); |
duke@1 | 787 | break; |
duke@1 | 788 | case INT: |
duke@1 | 789 | databuf.appendByte('I'); |
duke@1 | 790 | break; |
duke@1 | 791 | case LONG: |
duke@1 | 792 | databuf.appendByte('J'); |
duke@1 | 793 | break; |
duke@1 | 794 | case FLOAT: |
duke@1 | 795 | databuf.appendByte('F'); |
duke@1 | 796 | break; |
duke@1 | 797 | case DOUBLE: |
duke@1 | 798 | databuf.appendByte('D'); |
duke@1 | 799 | break; |
duke@1 | 800 | case BOOLEAN: |
duke@1 | 801 | databuf.appendByte('Z'); |
duke@1 | 802 | break; |
duke@1 | 803 | case CLASS: |
jjg@816 | 804 | Assert.check(value instanceof String); |
duke@1 | 805 | databuf.appendByte('s'); |
duke@1 | 806 | value = names.fromString(value.toString()); // CONSTANT_Utf8 |
duke@1 | 807 | break; |
duke@1 | 808 | default: |
duke@1 | 809 | throw new AssertionError(_value.type); |
duke@1 | 810 | } |
duke@1 | 811 | databuf.appendChar(pool.put(value)); |
duke@1 | 812 | } |
duke@1 | 813 | public void visitEnum(Attribute.Enum e) { |
duke@1 | 814 | databuf.appendByte('e'); |
duke@1 | 815 | databuf.appendChar(pool.put(typeSig(e.value.type))); |
duke@1 | 816 | databuf.appendChar(pool.put(e.value.name)); |
duke@1 | 817 | } |
duke@1 | 818 | public void visitClass(Attribute.Class clazz) { |
duke@1 | 819 | databuf.appendByte('c'); |
duke@1 | 820 | databuf.appendChar(pool.put(typeSig(clazz.type))); |
duke@1 | 821 | } |
duke@1 | 822 | public void visitCompound(Attribute.Compound compound) { |
duke@1 | 823 | databuf.appendByte('@'); |
duke@1 | 824 | writeCompoundAttribute(compound); |
duke@1 | 825 | } |
duke@1 | 826 | public void visitError(Attribute.Error x) { |
duke@1 | 827 | throw new AssertionError(x); |
duke@1 | 828 | } |
duke@1 | 829 | public void visitArray(Attribute.Array array) { |
duke@1 | 830 | databuf.appendByte('['); |
duke@1 | 831 | databuf.appendChar(array.values.length); |
duke@1 | 832 | for (Attribute a : array.values) { |
duke@1 | 833 | a.accept(this); |
duke@1 | 834 | } |
duke@1 | 835 | } |
duke@1 | 836 | } |
duke@1 | 837 | AttributeWriter awriter = new AttributeWriter(); |
duke@1 | 838 | |
duke@1 | 839 | /** Write a compound attribute excluding the '@' marker. */ |
duke@1 | 840 | void writeCompoundAttribute(Attribute.Compound c) { |
duke@1 | 841 | databuf.appendChar(pool.put(typeSig(c.type))); |
duke@1 | 842 | databuf.appendChar(c.values.length()); |
duke@1 | 843 | for (Pair<Symbol.MethodSymbol,Attribute> p : c.values) { |
duke@1 | 844 | databuf.appendChar(pool.put(p.fst.name)); |
duke@1 | 845 | p.snd.accept(awriter); |
duke@1 | 846 | } |
duke@1 | 847 | } |
duke@1 | 848 | /********************************************************************** |
duke@1 | 849 | * Writing Objects |
duke@1 | 850 | **********************************************************************/ |
duke@1 | 851 | |
duke@1 | 852 | /** Enter an inner class into the `innerClasses' set/queue. |
duke@1 | 853 | */ |
duke@1 | 854 | void enterInner(ClassSymbol c) { |
mcimadamore@747 | 855 | if (c.type.isCompound()) { |
mcimadamore@747 | 856 | throw new AssertionError("Unexpected intersection type: " + c.type); |
mcimadamore@747 | 857 | } |
duke@1 | 858 | try { |
duke@1 | 859 | c.complete(); |
duke@1 | 860 | } catch (CompletionFailure ex) { |
duke@1 | 861 | System.err.println("error: " + c + ": " + ex.getMessage()); |
duke@1 | 862 | throw ex; |
duke@1 | 863 | } |
duke@1 | 864 | if (c.type.tag != CLASS) return; // arrays |
duke@1 | 865 | if (pool != null && // pool might be null if called from xClassName |
duke@1 | 866 | c.owner.kind != PCK && |
duke@1 | 867 | (innerClasses == null || !innerClasses.contains(c))) { |
duke@1 | 868 | // log.errWriter.println("enter inner " + c);//DEBUG |
duke@1 | 869 | if (c.owner.kind == TYP) enterInner((ClassSymbol)c.owner); |
duke@1 | 870 | pool.put(c); |
duke@1 | 871 | pool.put(c.name); |
duke@1 | 872 | if (innerClasses == null) { |
duke@1 | 873 | innerClasses = new HashSet<ClassSymbol>(); |
duke@1 | 874 | innerClassesQueue = new ListBuffer<ClassSymbol>(); |
duke@1 | 875 | pool.put(names.InnerClasses); |
duke@1 | 876 | } |
duke@1 | 877 | innerClasses.add(c); |
duke@1 | 878 | innerClassesQueue.append(c); |
duke@1 | 879 | } |
duke@1 | 880 | } |
duke@1 | 881 | |
duke@1 | 882 | /** Write "inner classes" attribute. |
duke@1 | 883 | */ |
duke@1 | 884 | void writeInnerClasses() { |
duke@1 | 885 | int alenIdx = writeAttr(names.InnerClasses); |
duke@1 | 886 | databuf.appendChar(innerClassesQueue.length()); |
duke@1 | 887 | for (List<ClassSymbol> l = innerClassesQueue.toList(); |
duke@1 | 888 | l.nonEmpty(); |
duke@1 | 889 | l = l.tail) { |
duke@1 | 890 | ClassSymbol inner = l.head; |
duke@1 | 891 | char flags = (char) adjustFlags(inner.flags_field); |
duke@1 | 892 | if ((flags & INTERFACE) != 0) flags |= ABSTRACT; // Interfaces are always ABSTRACT |
duke@1 | 893 | if (inner.name.isEmpty()) flags &= ~FINAL; // Anonymous class: unset FINAL flag |
duke@1 | 894 | if (dumpInnerClassModifiers) { |
duke@1 | 895 | log.errWriter.println("INNERCLASS " + inner.name); |
duke@1 | 896 | log.errWriter.println("---" + flagNames(flags)); |
duke@1 | 897 | } |
duke@1 | 898 | databuf.appendChar(pool.get(inner)); |
duke@1 | 899 | databuf.appendChar( |
duke@1 | 900 | inner.owner.kind == TYP ? pool.get(inner.owner) : 0); |
duke@1 | 901 | databuf.appendChar( |
jjg@113 | 902 | !inner.name.isEmpty() ? pool.get(inner.name) : 0); |
duke@1 | 903 | databuf.appendChar(flags); |
duke@1 | 904 | } |
duke@1 | 905 | endAttr(alenIdx); |
duke@1 | 906 | } |
duke@1 | 907 | |
duke@1 | 908 | /** Write field symbol, entering all references into constant pool. |
duke@1 | 909 | */ |
duke@1 | 910 | void writeField(VarSymbol v) { |
duke@1 | 911 | int flags = adjustFlags(v.flags()); |
duke@1 | 912 | databuf.appendChar(flags); |
duke@1 | 913 | if (dumpFieldModifiers) { |
duke@1 | 914 | log.errWriter.println("FIELD " + fieldName(v)); |
duke@1 | 915 | log.errWriter.println("---" + flagNames(v.flags())); |
duke@1 | 916 | } |
duke@1 | 917 | databuf.appendChar(pool.put(fieldName(v))); |
duke@1 | 918 | databuf.appendChar(pool.put(typeSig(v.erasure(types)))); |
duke@1 | 919 | int acountIdx = beginAttrs(); |
duke@1 | 920 | int acount = 0; |
duke@1 | 921 | if (v.getConstValue() != null) { |
duke@1 | 922 | int alenIdx = writeAttr(names.ConstantValue); |
duke@1 | 923 | databuf.appendChar(pool.put(v.getConstValue())); |
duke@1 | 924 | endAttr(alenIdx); |
duke@1 | 925 | acount++; |
duke@1 | 926 | } |
duke@1 | 927 | acount += writeMemberAttrs(v); |
duke@1 | 928 | endAttrs(acountIdx, acount); |
duke@1 | 929 | } |
duke@1 | 930 | |
duke@1 | 931 | /** Write method symbol, entering all references into constant pool. |
duke@1 | 932 | */ |
duke@1 | 933 | void writeMethod(MethodSymbol m) { |
duke@1 | 934 | int flags = adjustFlags(m.flags()); |
duke@1 | 935 | databuf.appendChar(flags); |
duke@1 | 936 | if (dumpMethodModifiers) { |
duke@1 | 937 | log.errWriter.println("METHOD " + fieldName(m)); |
duke@1 | 938 | log.errWriter.println("---" + flagNames(m.flags())); |
duke@1 | 939 | } |
duke@1 | 940 | databuf.appendChar(pool.put(fieldName(m))); |
duke@1 | 941 | databuf.appendChar(pool.put(typeSig(m.externalType(types)))); |
duke@1 | 942 | int acountIdx = beginAttrs(); |
duke@1 | 943 | int acount = 0; |
duke@1 | 944 | if (m.code != null) { |
duke@1 | 945 | int alenIdx = writeAttr(names.Code); |
duke@1 | 946 | writeCode(m.code); |
duke@1 | 947 | m.code = null; // to conserve space |
duke@1 | 948 | endAttr(alenIdx); |
duke@1 | 949 | acount++; |
duke@1 | 950 | } |
duke@1 | 951 | List<Type> thrown = m.erasure(types).getThrownTypes(); |
duke@1 | 952 | if (thrown.nonEmpty()) { |
duke@1 | 953 | int alenIdx = writeAttr(names.Exceptions); |
duke@1 | 954 | databuf.appendChar(thrown.length()); |
duke@1 | 955 | for (List<Type> l = thrown; l.nonEmpty(); l = l.tail) |
duke@1 | 956 | databuf.appendChar(pool.put(l.head.tsym)); |
duke@1 | 957 | endAttr(alenIdx); |
duke@1 | 958 | acount++; |
duke@1 | 959 | } |
duke@1 | 960 | if (m.defaultValue != null) { |
duke@1 | 961 | int alenIdx = writeAttr(names.AnnotationDefault); |
duke@1 | 962 | m.defaultValue.accept(awriter); |
duke@1 | 963 | endAttr(alenIdx); |
duke@1 | 964 | acount++; |
duke@1 | 965 | } |
duke@1 | 966 | acount += writeMemberAttrs(m); |
duke@1 | 967 | acount += writeParameterAttrs(m); |
duke@1 | 968 | endAttrs(acountIdx, acount); |
duke@1 | 969 | } |
duke@1 | 970 | |
duke@1 | 971 | /** Write code attribute of method. |
duke@1 | 972 | */ |
duke@1 | 973 | void writeCode(Code code) { |
duke@1 | 974 | databuf.appendChar(code.max_stack); |
duke@1 | 975 | databuf.appendChar(code.max_locals); |
duke@1 | 976 | databuf.appendInt(code.cp); |
duke@1 | 977 | databuf.appendBytes(code.code, 0, code.cp); |
duke@1 | 978 | databuf.appendChar(code.catchInfo.length()); |
duke@1 | 979 | for (List<char[]> l = code.catchInfo.toList(); |
duke@1 | 980 | l.nonEmpty(); |
duke@1 | 981 | l = l.tail) { |
duke@1 | 982 | for (int i = 0; i < l.head.length; i++) |
duke@1 | 983 | databuf.appendChar(l.head[i]); |
duke@1 | 984 | } |
duke@1 | 985 | int acountIdx = beginAttrs(); |
duke@1 | 986 | int acount = 0; |
duke@1 | 987 | |
duke@1 | 988 | if (code.lineInfo.nonEmpty()) { |
duke@1 | 989 | int alenIdx = writeAttr(names.LineNumberTable); |
duke@1 | 990 | databuf.appendChar(code.lineInfo.length()); |
duke@1 | 991 | for (List<char[]> l = code.lineInfo.reverse(); |
duke@1 | 992 | l.nonEmpty(); |
duke@1 | 993 | l = l.tail) |
duke@1 | 994 | for (int i = 0; i < l.head.length; i++) |
duke@1 | 995 | databuf.appendChar(l.head[i]); |
duke@1 | 996 | endAttr(alenIdx); |
duke@1 | 997 | acount++; |
duke@1 | 998 | } |
duke@1 | 999 | |
duke@1 | 1000 | if (genCrt && (code.crt != null)) { |
duke@1 | 1001 | CRTable crt = code.crt; |
duke@1 | 1002 | int alenIdx = writeAttr(names.CharacterRangeTable); |
duke@1 | 1003 | int crtIdx = beginAttrs(); |
duke@1 | 1004 | int crtEntries = crt.writeCRT(databuf, code.lineMap, log); |
duke@1 | 1005 | endAttrs(crtIdx, crtEntries); |
duke@1 | 1006 | endAttr(alenIdx); |
duke@1 | 1007 | acount++; |
duke@1 | 1008 | } |
duke@1 | 1009 | |
duke@1 | 1010 | // counter for number of generic local variables |
duke@1 | 1011 | int nGenericVars = 0; |
duke@1 | 1012 | |
duke@1 | 1013 | if (code.varBufferSize > 0) { |
duke@1 | 1014 | int alenIdx = writeAttr(names.LocalVariableTable); |
duke@1 | 1015 | databuf.appendChar(code.varBufferSize); |
duke@1 | 1016 | |
duke@1 | 1017 | for (int i=0; i<code.varBufferSize; i++) { |
duke@1 | 1018 | Code.LocalVar var = code.varBuffer[i]; |
duke@1 | 1019 | |
duke@1 | 1020 | // write variable info |
jjg@816 | 1021 | Assert.check(var.start_pc >= 0 |
jjg@816 | 1022 | && var.start_pc <= code.cp); |
duke@1 | 1023 | databuf.appendChar(var.start_pc); |
jjg@816 | 1024 | Assert.check(var.length >= 0 |
jjg@816 | 1025 | && (var.start_pc + var.length) <= code.cp); |
duke@1 | 1026 | databuf.appendChar(var.length); |
duke@1 | 1027 | VarSymbol sym = var.sym; |
duke@1 | 1028 | databuf.appendChar(pool.put(sym.name)); |
duke@1 | 1029 | Type vartype = sym.erasure(types); |
mcimadamore@781 | 1030 | if (needsLocalVariableTypeEntry(sym.type)) |
duke@1 | 1031 | nGenericVars++; |
duke@1 | 1032 | databuf.appendChar(pool.put(typeSig(vartype))); |
duke@1 | 1033 | databuf.appendChar(var.reg); |
duke@1 | 1034 | } |
duke@1 | 1035 | endAttr(alenIdx); |
duke@1 | 1036 | acount++; |
duke@1 | 1037 | } |
duke@1 | 1038 | |
duke@1 | 1039 | if (nGenericVars > 0) { |
duke@1 | 1040 | int alenIdx = writeAttr(names.LocalVariableTypeTable); |
duke@1 | 1041 | databuf.appendChar(nGenericVars); |
duke@1 | 1042 | int count = 0; |
duke@1 | 1043 | |
duke@1 | 1044 | for (int i=0; i<code.varBufferSize; i++) { |
duke@1 | 1045 | Code.LocalVar var = code.varBuffer[i]; |
duke@1 | 1046 | VarSymbol sym = var.sym; |
mcimadamore@781 | 1047 | if (!needsLocalVariableTypeEntry(sym.type)) |
duke@1 | 1048 | continue; |
duke@1 | 1049 | count++; |
duke@1 | 1050 | // write variable info |
duke@1 | 1051 | databuf.appendChar(var.start_pc); |
duke@1 | 1052 | databuf.appendChar(var.length); |
duke@1 | 1053 | databuf.appendChar(pool.put(sym.name)); |
duke@1 | 1054 | databuf.appendChar(pool.put(typeSig(sym.type))); |
duke@1 | 1055 | databuf.appendChar(var.reg); |
duke@1 | 1056 | } |
jjg@816 | 1057 | Assert.check(count == nGenericVars); |
duke@1 | 1058 | endAttr(alenIdx); |
duke@1 | 1059 | acount++; |
duke@1 | 1060 | } |
duke@1 | 1061 | |
duke@1 | 1062 | if (code.stackMapBufferSize > 0) { |
duke@1 | 1063 | if (debugstackmap) System.out.println("Stack map for " + code.meth); |
duke@1 | 1064 | int alenIdx = writeAttr(code.stackMap.getAttributeName(names)); |
duke@1 | 1065 | writeStackMap(code); |
duke@1 | 1066 | endAttr(alenIdx); |
duke@1 | 1067 | acount++; |
duke@1 | 1068 | } |
duke@1 | 1069 | endAttrs(acountIdx, acount); |
duke@1 | 1070 | } |
mcimadamore@781 | 1071 | //where |
mcimadamore@781 | 1072 | private boolean needsLocalVariableTypeEntry(Type t) { |
mcimadamore@781 | 1073 | //a local variable needs a type-entry if its type T is generic |
mcimadamore@781 | 1074 | //(i.e. |T| != T) and if it's not an intersection type (not supported |
mcimadamore@781 | 1075 | //in signature attribute grammar) |
mcimadamore@781 | 1076 | return (!types.isSameType(t, types.erasure(t)) && |
mcimadamore@781 | 1077 | !t.isCompound()); |
mcimadamore@781 | 1078 | } |
duke@1 | 1079 | |
duke@1 | 1080 | void writeStackMap(Code code) { |
duke@1 | 1081 | int nframes = code.stackMapBufferSize; |
duke@1 | 1082 | if (debugstackmap) System.out.println(" nframes = " + nframes); |
duke@1 | 1083 | databuf.appendChar(nframes); |
duke@1 | 1084 | |
duke@1 | 1085 | switch (code.stackMap) { |
duke@1 | 1086 | case CLDC: |
duke@1 | 1087 | for (int i=0; i<nframes; i++) { |
duke@1 | 1088 | if (debugstackmap) System.out.print(" " + i + ":"); |
duke@1 | 1089 | Code.StackMapFrame frame = code.stackMapBuffer[i]; |
duke@1 | 1090 | |
duke@1 | 1091 | // output PC |
duke@1 | 1092 | if (debugstackmap) System.out.print(" pc=" + frame.pc); |
duke@1 | 1093 | databuf.appendChar(frame.pc); |
duke@1 | 1094 | |
duke@1 | 1095 | // output locals |
duke@1 | 1096 | int localCount = 0; |
duke@1 | 1097 | for (int j=0; j<frame.locals.length; |
duke@1 | 1098 | j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.locals[j]))) { |
duke@1 | 1099 | localCount++; |
duke@1 | 1100 | } |
duke@1 | 1101 | if (debugstackmap) System.out.print(" nlocals=" + |
duke@1 | 1102 | localCount); |
duke@1 | 1103 | databuf.appendChar(localCount); |
duke@1 | 1104 | for (int j=0; j<frame.locals.length; |
duke@1 | 1105 | j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.locals[j]))) { |
duke@1 | 1106 | if (debugstackmap) System.out.print(" local[" + j + "]="); |
duke@1 | 1107 | writeStackMapType(frame.locals[j]); |
duke@1 | 1108 | } |
duke@1 | 1109 | |
duke@1 | 1110 | // output stack |
duke@1 | 1111 | int stackCount = 0; |
duke@1 | 1112 | for (int j=0; j<frame.stack.length; |
duke@1 | 1113 | j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.stack[j]))) { |
duke@1 | 1114 | stackCount++; |
duke@1 | 1115 | } |
duke@1 | 1116 | if (debugstackmap) System.out.print(" nstack=" + |
duke@1 | 1117 | stackCount); |
duke@1 | 1118 | databuf.appendChar(stackCount); |
duke@1 | 1119 | for (int j=0; j<frame.stack.length; |
duke@1 | 1120 | j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.stack[j]))) { |
duke@1 | 1121 | if (debugstackmap) System.out.print(" stack[" + j + "]="); |
duke@1 | 1122 | writeStackMapType(frame.stack[j]); |
duke@1 | 1123 | } |
duke@1 | 1124 | if (debugstackmap) System.out.println(); |
duke@1 | 1125 | } |
duke@1 | 1126 | break; |
duke@1 | 1127 | case JSR202: { |
jjg@816 | 1128 | Assert.checkNull(code.stackMapBuffer); |
duke@1 | 1129 | for (int i=0; i<nframes; i++) { |
duke@1 | 1130 | if (debugstackmap) System.out.print(" " + i + ":"); |
duke@1 | 1131 | StackMapTableFrame frame = code.stackMapTableBuffer[i]; |
duke@1 | 1132 | frame.write(this); |
duke@1 | 1133 | if (debugstackmap) System.out.println(); |
duke@1 | 1134 | } |
duke@1 | 1135 | break; |
duke@1 | 1136 | } |
duke@1 | 1137 | default: |
duke@1 | 1138 | throw new AssertionError("Unexpected stackmap format value"); |
duke@1 | 1139 | } |
duke@1 | 1140 | } |
duke@1 | 1141 | |
duke@1 | 1142 | //where |
duke@1 | 1143 | void writeStackMapType(Type t) { |
duke@1 | 1144 | if (t == null) { |
duke@1 | 1145 | if (debugstackmap) System.out.print("empty"); |
duke@1 | 1146 | databuf.appendByte(0); |
duke@1 | 1147 | } |
duke@1 | 1148 | else switch(t.tag) { |
duke@1 | 1149 | case BYTE: |
duke@1 | 1150 | case CHAR: |
duke@1 | 1151 | case SHORT: |
duke@1 | 1152 | case INT: |
duke@1 | 1153 | case BOOLEAN: |
duke@1 | 1154 | if (debugstackmap) System.out.print("int"); |
duke@1 | 1155 | databuf.appendByte(1); |
duke@1 | 1156 | break; |
duke@1 | 1157 | case FLOAT: |
duke@1 | 1158 | if (debugstackmap) System.out.print("float"); |
duke@1 | 1159 | databuf.appendByte(2); |
duke@1 | 1160 | break; |
duke@1 | 1161 | case DOUBLE: |
duke@1 | 1162 | if (debugstackmap) System.out.print("double"); |
duke@1 | 1163 | databuf.appendByte(3); |
duke@1 | 1164 | break; |
duke@1 | 1165 | case LONG: |
duke@1 | 1166 | if (debugstackmap) System.out.print("long"); |
duke@1 | 1167 | databuf.appendByte(4); |
duke@1 | 1168 | break; |
duke@1 | 1169 | case BOT: // null |
duke@1 | 1170 | if (debugstackmap) System.out.print("null"); |
duke@1 | 1171 | databuf.appendByte(5); |
duke@1 | 1172 | break; |
duke@1 | 1173 | case CLASS: |
duke@1 | 1174 | case ARRAY: |
duke@1 | 1175 | if (debugstackmap) System.out.print("object(" + t + ")"); |
duke@1 | 1176 | databuf.appendByte(7); |
duke@1 | 1177 | databuf.appendChar(pool.put(t)); |
duke@1 | 1178 | break; |
duke@1 | 1179 | case TYPEVAR: |
duke@1 | 1180 | if (debugstackmap) System.out.print("object(" + types.erasure(t).tsym + ")"); |
duke@1 | 1181 | databuf.appendByte(7); |
duke@1 | 1182 | databuf.appendChar(pool.put(types.erasure(t).tsym)); |
duke@1 | 1183 | break; |
duke@1 | 1184 | case UNINITIALIZED_THIS: |
duke@1 | 1185 | if (debugstackmap) System.out.print("uninit_this"); |
duke@1 | 1186 | databuf.appendByte(6); |
duke@1 | 1187 | break; |
duke@1 | 1188 | case UNINITIALIZED_OBJECT: |
duke@1 | 1189 | { UninitializedType uninitType = (UninitializedType)t; |
duke@1 | 1190 | databuf.appendByte(8); |
duke@1 | 1191 | if (debugstackmap) System.out.print("uninit_object@" + uninitType.offset); |
duke@1 | 1192 | databuf.appendChar(uninitType.offset); |
duke@1 | 1193 | } |
duke@1 | 1194 | break; |
duke@1 | 1195 | default: |
duke@1 | 1196 | throw new AssertionError(); |
duke@1 | 1197 | } |
duke@1 | 1198 | } |
duke@1 | 1199 | |
duke@1 | 1200 | /** An entry in the JSR202 StackMapTable */ |
duke@1 | 1201 | abstract static class StackMapTableFrame { |
duke@1 | 1202 | abstract int getFrameType(); |
duke@1 | 1203 | |
duke@1 | 1204 | void write(ClassWriter writer) { |
duke@1 | 1205 | int frameType = getFrameType(); |
duke@1 | 1206 | writer.databuf.appendByte(frameType); |
duke@1 | 1207 | if (writer.debugstackmap) System.out.print(" frame_type=" + frameType); |
duke@1 | 1208 | } |
duke@1 | 1209 | |
duke@1 | 1210 | static class SameFrame extends StackMapTableFrame { |
duke@1 | 1211 | final int offsetDelta; |
duke@1 | 1212 | SameFrame(int offsetDelta) { |
duke@1 | 1213 | this.offsetDelta = offsetDelta; |
duke@1 | 1214 | } |
duke@1 | 1215 | int getFrameType() { |
duke@1 | 1216 | return (offsetDelta < SAME_FRAME_SIZE) ? offsetDelta : SAME_FRAME_EXTENDED; |
duke@1 | 1217 | } |
duke@1 | 1218 | @Override |
duke@1 | 1219 | void write(ClassWriter writer) { |
duke@1 | 1220 | super.write(writer); |
duke@1 | 1221 | if (getFrameType() == SAME_FRAME_EXTENDED) { |
duke@1 | 1222 | writer.databuf.appendChar(offsetDelta); |
duke@1 | 1223 | if (writer.debugstackmap){ |
duke@1 | 1224 | System.out.print(" offset_delta=" + offsetDelta); |
duke@1 | 1225 | } |
duke@1 | 1226 | } |
duke@1 | 1227 | } |
duke@1 | 1228 | } |
duke@1 | 1229 | |
duke@1 | 1230 | static class SameLocals1StackItemFrame extends StackMapTableFrame { |
duke@1 | 1231 | final int offsetDelta; |
duke@1 | 1232 | final Type stack; |
duke@1 | 1233 | SameLocals1StackItemFrame(int offsetDelta, Type stack) { |
duke@1 | 1234 | this.offsetDelta = offsetDelta; |
duke@1 | 1235 | this.stack = stack; |
duke@1 | 1236 | } |
duke@1 | 1237 | int getFrameType() { |
duke@1 | 1238 | return (offsetDelta < SAME_FRAME_SIZE) ? |
duke@1 | 1239 | (SAME_FRAME_SIZE + offsetDelta) : |
duke@1 | 1240 | SAME_LOCALS_1_STACK_ITEM_EXTENDED; |
duke@1 | 1241 | } |
duke@1 | 1242 | @Override |
duke@1 | 1243 | void write(ClassWriter writer) { |
duke@1 | 1244 | super.write(writer); |
duke@1 | 1245 | if (getFrameType() == SAME_LOCALS_1_STACK_ITEM_EXTENDED) { |
duke@1 | 1246 | writer.databuf.appendChar(offsetDelta); |
duke@1 | 1247 | if (writer.debugstackmap) { |
duke@1 | 1248 | System.out.print(" offset_delta=" + offsetDelta); |
duke@1 | 1249 | } |
duke@1 | 1250 | } |
duke@1 | 1251 | if (writer.debugstackmap) { |
duke@1 | 1252 | System.out.print(" stack[" + 0 + "]="); |
duke@1 | 1253 | } |
duke@1 | 1254 | writer.writeStackMapType(stack); |
duke@1 | 1255 | } |
duke@1 | 1256 | } |
duke@1 | 1257 | |
duke@1 | 1258 | static class ChopFrame extends StackMapTableFrame { |
duke@1 | 1259 | final int frameType; |
duke@1 | 1260 | final int offsetDelta; |
duke@1 | 1261 | ChopFrame(int frameType, int offsetDelta) { |
duke@1 | 1262 | this.frameType = frameType; |
duke@1 | 1263 | this.offsetDelta = offsetDelta; |
duke@1 | 1264 | } |
duke@1 | 1265 | int getFrameType() { return frameType; } |
duke@1 | 1266 | @Override |
duke@1 | 1267 | void write(ClassWriter writer) { |
duke@1 | 1268 | super.write(writer); |
duke@1 | 1269 | writer.databuf.appendChar(offsetDelta); |
duke@1 | 1270 | if (writer.debugstackmap) { |
duke@1 | 1271 | System.out.print(" offset_delta=" + offsetDelta); |
duke@1 | 1272 | } |
duke@1 | 1273 | } |
duke@1 | 1274 | } |
duke@1 | 1275 | |
duke@1 | 1276 | static class AppendFrame extends StackMapTableFrame { |
duke@1 | 1277 | final int frameType; |
duke@1 | 1278 | final int offsetDelta; |
duke@1 | 1279 | final Type[] locals; |
duke@1 | 1280 | AppendFrame(int frameType, int offsetDelta, Type[] locals) { |
duke@1 | 1281 | this.frameType = frameType; |
duke@1 | 1282 | this.offsetDelta = offsetDelta; |
duke@1 | 1283 | this.locals = locals; |
duke@1 | 1284 | } |
duke@1 | 1285 | int getFrameType() { return frameType; } |
duke@1 | 1286 | @Override |
duke@1 | 1287 | void write(ClassWriter writer) { |
duke@1 | 1288 | super.write(writer); |
duke@1 | 1289 | writer.databuf.appendChar(offsetDelta); |
duke@1 | 1290 | if (writer.debugstackmap) { |
duke@1 | 1291 | System.out.print(" offset_delta=" + offsetDelta); |
duke@1 | 1292 | } |
duke@1 | 1293 | for (int i=0; i<locals.length; i++) { |
duke@1 | 1294 | if (writer.debugstackmap) System.out.print(" locals[" + i + "]="); |
duke@1 | 1295 | writer.writeStackMapType(locals[i]); |
duke@1 | 1296 | } |
duke@1 | 1297 | } |
duke@1 | 1298 | } |
duke@1 | 1299 | |
duke@1 | 1300 | static class FullFrame extends StackMapTableFrame { |
duke@1 | 1301 | final int offsetDelta; |
duke@1 | 1302 | final Type[] locals; |
duke@1 | 1303 | final Type[] stack; |
duke@1 | 1304 | FullFrame(int offsetDelta, Type[] locals, Type[] stack) { |
duke@1 | 1305 | this.offsetDelta = offsetDelta; |
duke@1 | 1306 | this.locals = locals; |
duke@1 | 1307 | this.stack = stack; |
duke@1 | 1308 | } |
duke@1 | 1309 | int getFrameType() { return FULL_FRAME; } |
duke@1 | 1310 | @Override |
duke@1 | 1311 | void write(ClassWriter writer) { |
duke@1 | 1312 | super.write(writer); |
duke@1 | 1313 | writer.databuf.appendChar(offsetDelta); |
duke@1 | 1314 | writer.databuf.appendChar(locals.length); |
duke@1 | 1315 | if (writer.debugstackmap) { |
duke@1 | 1316 | System.out.print(" offset_delta=" + offsetDelta); |
duke@1 | 1317 | System.out.print(" nlocals=" + locals.length); |
duke@1 | 1318 | } |
duke@1 | 1319 | for (int i=0; i<locals.length; i++) { |
duke@1 | 1320 | if (writer.debugstackmap) System.out.print(" locals[" + i + "]="); |
duke@1 | 1321 | writer.writeStackMapType(locals[i]); |
duke@1 | 1322 | } |
duke@1 | 1323 | |
duke@1 | 1324 | writer.databuf.appendChar(stack.length); |
duke@1 | 1325 | if (writer.debugstackmap) { System.out.print(" nstack=" + stack.length); } |
duke@1 | 1326 | for (int i=0; i<stack.length; i++) { |
duke@1 | 1327 | if (writer.debugstackmap) System.out.print(" stack[" + i + "]="); |
duke@1 | 1328 | writer.writeStackMapType(stack[i]); |
duke@1 | 1329 | } |
duke@1 | 1330 | } |
duke@1 | 1331 | } |
duke@1 | 1332 | |
duke@1 | 1333 | /** Compare this frame with the previous frame and produce |
duke@1 | 1334 | * an entry of compressed stack map frame. */ |
duke@1 | 1335 | static StackMapTableFrame getInstance(Code.StackMapFrame this_frame, |
duke@1 | 1336 | int prev_pc, |
duke@1 | 1337 | Type[] prev_locals, |
duke@1 | 1338 | Types types) { |
duke@1 | 1339 | Type[] locals = this_frame.locals; |
duke@1 | 1340 | Type[] stack = this_frame.stack; |
duke@1 | 1341 | int offset_delta = this_frame.pc - prev_pc - 1; |
duke@1 | 1342 | if (stack.length == 1) { |
duke@1 | 1343 | if (locals.length == prev_locals.length |
duke@1 | 1344 | && compare(prev_locals, locals, types) == 0) { |
duke@1 | 1345 | return new SameLocals1StackItemFrame(offset_delta, stack[0]); |
duke@1 | 1346 | } |
duke@1 | 1347 | } else if (stack.length == 0) { |
duke@1 | 1348 | int diff_length = compare(prev_locals, locals, types); |
duke@1 | 1349 | if (diff_length == 0) { |
duke@1 | 1350 | return new SameFrame(offset_delta); |
duke@1 | 1351 | } else if (-MAX_LOCAL_LENGTH_DIFF < diff_length && diff_length < 0) { |
duke@1 | 1352 | // APPEND |
duke@1 | 1353 | Type[] local_diff = new Type[-diff_length]; |
duke@1 | 1354 | for (int i=prev_locals.length, j=0; i<locals.length; i++,j++) { |
duke@1 | 1355 | local_diff[j] = locals[i]; |
duke@1 | 1356 | } |
duke@1 | 1357 | return new AppendFrame(SAME_FRAME_EXTENDED - diff_length, |
duke@1 | 1358 | offset_delta, |
duke@1 | 1359 | local_diff); |
duke@1 | 1360 | } else if (0 < diff_length && diff_length < MAX_LOCAL_LENGTH_DIFF) { |
duke@1 | 1361 | // CHOP |
duke@1 | 1362 | return new ChopFrame(SAME_FRAME_EXTENDED - diff_length, |
duke@1 | 1363 | offset_delta); |
duke@1 | 1364 | } |
duke@1 | 1365 | } |
duke@1 | 1366 | // FULL_FRAME |
duke@1 | 1367 | return new FullFrame(offset_delta, locals, stack); |
duke@1 | 1368 | } |
duke@1 | 1369 | |
duke@1 | 1370 | static boolean isInt(Type t) { |
duke@1 | 1371 | return (t.tag < TypeTags.INT || t.tag == TypeTags.BOOLEAN); |
duke@1 | 1372 | } |
duke@1 | 1373 | |
duke@1 | 1374 | static boolean isSameType(Type t1, Type t2, Types types) { |
duke@1 | 1375 | if (t1 == null) { return t2 == null; } |
duke@1 | 1376 | if (t2 == null) { return false; } |
duke@1 | 1377 | |
duke@1 | 1378 | if (isInt(t1) && isInt(t2)) { return true; } |
duke@1 | 1379 | |
duke@1 | 1380 | if (t1.tag == UNINITIALIZED_THIS) { |
duke@1 | 1381 | return t2.tag == UNINITIALIZED_THIS; |
duke@1 | 1382 | } else if (t1.tag == UNINITIALIZED_OBJECT) { |
duke@1 | 1383 | if (t2.tag == UNINITIALIZED_OBJECT) { |
duke@1 | 1384 | return ((UninitializedType)t1).offset == ((UninitializedType)t2).offset; |
duke@1 | 1385 | } else { |
duke@1 | 1386 | return false; |
duke@1 | 1387 | } |
duke@1 | 1388 | } else if (t2.tag == UNINITIALIZED_THIS || t2.tag == UNINITIALIZED_OBJECT) { |
duke@1 | 1389 | return false; |
duke@1 | 1390 | } |
duke@1 | 1391 | |
duke@1 | 1392 | return types.isSameType(t1, t2); |
duke@1 | 1393 | } |
duke@1 | 1394 | |
duke@1 | 1395 | static int compare(Type[] arr1, Type[] arr2, Types types) { |
duke@1 | 1396 | int diff_length = arr1.length - arr2.length; |
duke@1 | 1397 | if (diff_length > MAX_LOCAL_LENGTH_DIFF || diff_length < -MAX_LOCAL_LENGTH_DIFF) { |
duke@1 | 1398 | return Integer.MAX_VALUE; |
duke@1 | 1399 | } |
duke@1 | 1400 | int len = (diff_length > 0) ? arr2.length : arr1.length; |
duke@1 | 1401 | for (int i=0; i<len; i++) { |
duke@1 | 1402 | if (!isSameType(arr1[i], arr2[i], types)) { |
duke@1 | 1403 | return Integer.MAX_VALUE; |
duke@1 | 1404 | } |
duke@1 | 1405 | } |
duke@1 | 1406 | return diff_length; |
duke@1 | 1407 | } |
duke@1 | 1408 | } |
duke@1 | 1409 | |
duke@1 | 1410 | void writeFields(Scope.Entry e) { |
duke@1 | 1411 | // process them in reverse sibling order; |
duke@1 | 1412 | // i.e., process them in declaration order. |
duke@1 | 1413 | List<VarSymbol> vars = List.nil(); |
duke@1 | 1414 | for (Scope.Entry i = e; i != null; i = i.sibling) { |
duke@1 | 1415 | if (i.sym.kind == VAR) vars = vars.prepend((VarSymbol)i.sym); |
duke@1 | 1416 | } |
duke@1 | 1417 | while (vars.nonEmpty()) { |
duke@1 | 1418 | writeField(vars.head); |
duke@1 | 1419 | vars = vars.tail; |
duke@1 | 1420 | } |
duke@1 | 1421 | } |
duke@1 | 1422 | |
duke@1 | 1423 | void writeMethods(Scope.Entry e) { |
duke@1 | 1424 | List<MethodSymbol> methods = List.nil(); |
duke@1 | 1425 | for (Scope.Entry i = e; i != null; i = i.sibling) { |
duke@1 | 1426 | if (i.sym.kind == MTH && (i.sym.flags() & HYPOTHETICAL) == 0) |
duke@1 | 1427 | methods = methods.prepend((MethodSymbol)i.sym); |
duke@1 | 1428 | } |
duke@1 | 1429 | while (methods.nonEmpty()) { |
duke@1 | 1430 | writeMethod(methods.head); |
duke@1 | 1431 | methods = methods.tail; |
duke@1 | 1432 | } |
duke@1 | 1433 | } |
duke@1 | 1434 | |
duke@1 | 1435 | /** Emit a class file for a given class. |
duke@1 | 1436 | * @param c The class from which a class file is generated. |
duke@1 | 1437 | */ |
duke@1 | 1438 | public JavaFileObject writeClass(ClassSymbol c) |
duke@1 | 1439 | throws IOException, PoolOverflow, StringOverflow |
duke@1 | 1440 | { |
duke@1 | 1441 | JavaFileObject outFile |
duke@1 | 1442 | = fileManager.getJavaFileForOutput(CLASS_OUTPUT, |
duke@1 | 1443 | c.flatname.toString(), |
duke@1 | 1444 | JavaFileObject.Kind.CLASS, |
duke@1 | 1445 | c.sourcefile); |
duke@1 | 1446 | OutputStream out = outFile.openOutputStream(); |
duke@1 | 1447 | try { |
duke@1 | 1448 | writeClassFile(out, c); |
duke@1 | 1449 | if (verbose) |
jjg@604 | 1450 | log.printErrLines("verbose.wrote.file", outFile); |
duke@1 | 1451 | out.close(); |
duke@1 | 1452 | out = null; |
duke@1 | 1453 | } finally { |
duke@1 | 1454 | if (out != null) { |
duke@1 | 1455 | // if we are propogating an exception, delete the file |
duke@1 | 1456 | out.close(); |
duke@1 | 1457 | outFile.delete(); |
duke@1 | 1458 | outFile = null; |
duke@1 | 1459 | } |
duke@1 | 1460 | } |
duke@1 | 1461 | return outFile; // may be null if write failed |
duke@1 | 1462 | } |
duke@1 | 1463 | |
duke@1 | 1464 | /** Write class `c' to outstream `out'. |
duke@1 | 1465 | */ |
duke@1 | 1466 | public void writeClassFile(OutputStream out, ClassSymbol c) |
duke@1 | 1467 | throws IOException, PoolOverflow, StringOverflow { |
jjg@816 | 1468 | Assert.check((c.flags() & COMPOUND) == 0); |
duke@1 | 1469 | databuf.reset(); |
duke@1 | 1470 | poolbuf.reset(); |
duke@1 | 1471 | sigbuf.reset(); |
duke@1 | 1472 | pool = c.pool; |
duke@1 | 1473 | innerClasses = null; |
duke@1 | 1474 | innerClassesQueue = null; |
duke@1 | 1475 | |
duke@1 | 1476 | Type supertype = types.supertype(c.type); |
duke@1 | 1477 | List<Type> interfaces = types.interfaces(c.type); |
duke@1 | 1478 | List<Type> typarams = c.type.getTypeArguments(); |
duke@1 | 1479 | |
duke@1 | 1480 | int flags = adjustFlags(c.flags()); |
duke@1 | 1481 | if ((flags & PROTECTED) != 0) flags |= PUBLIC; |
duke@1 | 1482 | flags = flags & ClassFlags & ~STRICTFP; |
duke@1 | 1483 | if ((flags & INTERFACE) == 0) flags |= ACC_SUPER; |
duke@1 | 1484 | if (c.isInner() && c.name.isEmpty()) flags &= ~FINAL; |
duke@1 | 1485 | if (dumpClassModifiers) { |
duke@1 | 1486 | log.errWriter.println(); |
duke@1 | 1487 | log.errWriter.println("CLASSFILE " + c.getQualifiedName()); |
duke@1 | 1488 | log.errWriter.println("---" + flagNames(flags)); |
duke@1 | 1489 | } |
duke@1 | 1490 | databuf.appendChar(flags); |
duke@1 | 1491 | |
duke@1 | 1492 | databuf.appendChar(pool.put(c)); |
duke@1 | 1493 | databuf.appendChar(supertype.tag == CLASS ? pool.put(supertype.tsym) : 0); |
duke@1 | 1494 | databuf.appendChar(interfaces.length()); |
duke@1 | 1495 | for (List<Type> l = interfaces; l.nonEmpty(); l = l.tail) |
duke@1 | 1496 | databuf.appendChar(pool.put(l.head.tsym)); |
duke@1 | 1497 | int fieldsCount = 0; |
duke@1 | 1498 | int methodsCount = 0; |
duke@1 | 1499 | for (Scope.Entry e = c.members().elems; e != null; e = e.sibling) { |
duke@1 | 1500 | switch (e.sym.kind) { |
duke@1 | 1501 | case VAR: fieldsCount++; break; |
duke@1 | 1502 | case MTH: if ((e.sym.flags() & HYPOTHETICAL) == 0) methodsCount++; |
duke@1 | 1503 | break; |
duke@1 | 1504 | case TYP: enterInner((ClassSymbol)e.sym); break; |
jjg@816 | 1505 | default : Assert.error(); |
duke@1 | 1506 | } |
duke@1 | 1507 | } |
duke@1 | 1508 | databuf.appendChar(fieldsCount); |
duke@1 | 1509 | writeFields(c.members().elems); |
duke@1 | 1510 | databuf.appendChar(methodsCount); |
duke@1 | 1511 | writeMethods(c.members().elems); |
duke@1 | 1512 | |
duke@1 | 1513 | int acountIdx = beginAttrs(); |
duke@1 | 1514 | int acount = 0; |
duke@1 | 1515 | |
duke@1 | 1516 | boolean sigReq = |
mcimadamore@297 | 1517 | typarams.length() != 0 || supertype.allparams().length() != 0; |
duke@1 | 1518 | for (List<Type> l = interfaces; !sigReq && l.nonEmpty(); l = l.tail) |
mcimadamore@297 | 1519 | sigReq = l.head.allparams().length() != 0; |
duke@1 | 1520 | if (sigReq) { |
jjg@816 | 1521 | Assert.check(source.allowGenerics()); |
duke@1 | 1522 | int alenIdx = writeAttr(names.Signature); |
duke@1 | 1523 | if (typarams.length() != 0) assembleParamsSig(typarams); |
duke@1 | 1524 | assembleSig(supertype); |
duke@1 | 1525 | for (List<Type> l = interfaces; l.nonEmpty(); l = l.tail) |
duke@1 | 1526 | assembleSig(l.head); |
duke@1 | 1527 | databuf.appendChar(pool.put(sigbuf.toName(names))); |
duke@1 | 1528 | sigbuf.reset(); |
duke@1 | 1529 | endAttr(alenIdx); |
duke@1 | 1530 | acount++; |
duke@1 | 1531 | } |
duke@1 | 1532 | |
duke@1 | 1533 | if (c.sourcefile != null && emitSourceFile) { |
duke@1 | 1534 | int alenIdx = writeAttr(names.SourceFile); |
duke@1 | 1535 | // WHM 6/29/1999: Strip file path prefix. We do it here at |
duke@1 | 1536 | // the last possible moment because the sourcefile may be used |
duke@1 | 1537 | // elsewhere in error diagnostics. Fixes 4241573. |
duke@1 | 1538 | //databuf.appendChar(c.pool.put(c.sourcefile)); |
jjg@415 | 1539 | String simpleName = BaseFileObject.getSimpleName(c.sourcefile); |
jjg@415 | 1540 | databuf.appendChar(c.pool.put(names.fromString(simpleName))); |
duke@1 | 1541 | endAttr(alenIdx); |
duke@1 | 1542 | acount++; |
duke@1 | 1543 | } |
duke@1 | 1544 | |
duke@1 | 1545 | if (genCrt) { |
duke@1 | 1546 | // Append SourceID attribute |
duke@1 | 1547 | int alenIdx = writeAttr(names.SourceID); |
duke@1 | 1548 | databuf.appendChar(c.pool.put(names.fromString(Long.toString(getLastModified(c.sourcefile))))); |
duke@1 | 1549 | endAttr(alenIdx); |
duke@1 | 1550 | acount++; |
duke@1 | 1551 | // Append CompilationID attribute |
duke@1 | 1552 | alenIdx = writeAttr(names.CompilationID); |
duke@1 | 1553 | databuf.appendChar(c.pool.put(names.fromString(Long.toString(System.currentTimeMillis())))); |
duke@1 | 1554 | endAttr(alenIdx); |
duke@1 | 1555 | acount++; |
duke@1 | 1556 | } |
duke@1 | 1557 | |
duke@1 | 1558 | acount += writeFlagAttrs(c.flags()); |
duke@1 | 1559 | acount += writeJavaAnnotations(c.getAnnotationMirrors()); |
duke@1 | 1560 | acount += writeEnclosingMethodAttribute(c); |
duke@1 | 1561 | |
duke@1 | 1562 | poolbuf.appendInt(JAVA_MAGIC); |
duke@1 | 1563 | poolbuf.appendChar(target.minorVersion); |
duke@1 | 1564 | poolbuf.appendChar(target.majorVersion); |
duke@1 | 1565 | |
duke@1 | 1566 | writePool(c.pool); |
duke@1 | 1567 | |
duke@1 | 1568 | if (innerClasses != null) { |
duke@1 | 1569 | writeInnerClasses(); |
duke@1 | 1570 | acount++; |
duke@1 | 1571 | } |
duke@1 | 1572 | endAttrs(acountIdx, acount); |
duke@1 | 1573 | |
duke@1 | 1574 | poolbuf.appendBytes(databuf.elems, 0, databuf.length); |
duke@1 | 1575 | out.write(poolbuf.elems, 0, poolbuf.length); |
duke@1 | 1576 | |
duke@1 | 1577 | pool = c.pool = null; // to conserve space |
duke@1 | 1578 | } |
duke@1 | 1579 | |
duke@1 | 1580 | int adjustFlags(final long flags) { |
duke@1 | 1581 | int result = (int)flags; |
duke@1 | 1582 | if ((flags & SYNTHETIC) != 0 && !target.useSyntheticFlag()) |
duke@1 | 1583 | result &= ~SYNTHETIC; |
duke@1 | 1584 | if ((flags & ENUM) != 0 && !target.useEnumFlag()) |
duke@1 | 1585 | result &= ~ENUM; |
duke@1 | 1586 | if ((flags & ANNOTATION) != 0 && !target.useAnnotationFlag()) |
duke@1 | 1587 | result &= ~ANNOTATION; |
duke@1 | 1588 | |
duke@1 | 1589 | if ((flags & BRIDGE) != 0 && target.useBridgeFlag()) |
duke@1 | 1590 | result |= ACC_BRIDGE; |
duke@1 | 1591 | if ((flags & VARARGS) != 0 && target.useVarargsFlag()) |
duke@1 | 1592 | result |= ACC_VARARGS; |
duke@1 | 1593 | return result; |
duke@1 | 1594 | } |
duke@1 | 1595 | |
duke@1 | 1596 | long getLastModified(FileObject filename) { |
duke@1 | 1597 | long mod = 0; |
duke@1 | 1598 | try { |
duke@1 | 1599 | mod = filename.getLastModified(); |
duke@1 | 1600 | } catch (SecurityException e) { |
duke@1 | 1601 | throw new AssertionError("CRT: couldn't get source file modification date: " + e.getMessage()); |
duke@1 | 1602 | } |
duke@1 | 1603 | return mod; |
duke@1 | 1604 | } |
duke@1 | 1605 | } |