Symtab.java revision 2571:10fc81ac75b4
1/* 2 * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package com.sun.tools.javac.code; 27 28import java.util.HashMap; 29import java.util.HashSet; 30import java.util.Map; 31import java.util.Set; 32 33import javax.lang.model.element.ElementVisitor; 34import javax.tools.JavaFileObject; 35 36 37import com.sun.tools.javac.code.Scope.WriteableScope; 38import com.sun.tools.javac.code.Symbol.ClassSymbol; 39import com.sun.tools.javac.code.Symbol.Completer; 40import com.sun.tools.javac.code.Symbol.CompletionFailure; 41import com.sun.tools.javac.code.Symbol.MethodSymbol; 42import com.sun.tools.javac.code.Symbol.OperatorSymbol; 43import com.sun.tools.javac.code.Symbol.PackageSymbol; 44import com.sun.tools.javac.code.Symbol.TypeSymbol; 45import com.sun.tools.javac.code.Symbol.VarSymbol; 46import com.sun.tools.javac.code.Type.BottomType; 47import com.sun.tools.javac.code.Type.ClassType; 48import com.sun.tools.javac.code.Type.ErrorType; 49import com.sun.tools.javac.code.Type.JCPrimitiveType; 50import com.sun.tools.javac.code.Type.JCVoidType; 51import com.sun.tools.javac.code.Type.MethodType; 52import com.sun.tools.javac.code.Type.UnknownType; 53import com.sun.tools.javac.jvm.ByteCodes; 54import com.sun.tools.javac.jvm.Target; 55import com.sun.tools.javac.util.Assert; 56import com.sun.tools.javac.util.Context; 57import com.sun.tools.javac.util.Convert; 58import com.sun.tools.javac.util.JavacMessages; 59import com.sun.tools.javac.util.List; 60import com.sun.tools.javac.util.Log; 61import com.sun.tools.javac.util.Name; 62import com.sun.tools.javac.util.Names; 63 64import static com.sun.tools.javac.code.Flags.*; 65import static com.sun.tools.javac.code.Kinds.PCK; 66import static com.sun.tools.javac.code.Kinds.TYP; 67import static com.sun.tools.javac.jvm.ByteCodes.*; 68import static com.sun.tools.javac.code.TypeTag.*; 69 70/** A class that defines all predefined constants and operators 71 * as well as special classes such as java.lang.Object, which need 72 * to be known to the compiler. All symbols are held in instance 73 * fields. This makes it possible to work in multiple concurrent 74 * projects, which might use different class files for library classes. 75 * 76 * <p><b>This is NOT part of any supported API. 77 * If you write code that depends on this, you do so at your own risk. 78 * This code and its internal interfaces are subject to change or 79 * deletion without notice.</b> 80 */ 81public class Symtab { 82 /** The context key for the symbol table. */ 83 protected static final Context.Key<Symtab> symtabKey = new Context.Key<>(); 84 85 /** Get the symbol table instance. */ 86 public static Symtab instance(Context context) { 87 Symtab instance = context.get(symtabKey); 88 if (instance == null) 89 instance = new Symtab(context); 90 return instance; 91 } 92 93 /** Builtin types. 94 */ 95 public final JCPrimitiveType byteType = new JCPrimitiveType(BYTE, null); 96 public final JCPrimitiveType charType = new JCPrimitiveType(CHAR, null); 97 public final JCPrimitiveType shortType = new JCPrimitiveType(SHORT, null); 98 public final JCPrimitiveType intType = new JCPrimitiveType(INT, null); 99 public final JCPrimitiveType longType = new JCPrimitiveType(LONG, null); 100 public final JCPrimitiveType floatType = new JCPrimitiveType(FLOAT, null); 101 public final JCPrimitiveType doubleType = new JCPrimitiveType(DOUBLE, null); 102 public final JCPrimitiveType booleanType = new JCPrimitiveType(BOOLEAN, null); 103 public final Type botType = new BottomType(); 104 public final JCVoidType voidType = new JCVoidType(); 105 106 private final Names names; 107 private final Completer initialCompleter; 108 private final Target target; 109 110 /** A symbol for the root package. 111 */ 112 public final PackageSymbol rootPackage; 113 114 /** A symbol for the unnamed package. 115 */ 116 public final PackageSymbol unnamedPackage; 117 118 /** A symbol that stands for a missing symbol. 119 */ 120 public final TypeSymbol noSymbol; 121 122 /** The error symbol. 123 */ 124 public final ClassSymbol errSymbol; 125 126 /** The unknown symbol. 127 */ 128 public final ClassSymbol unknownSymbol; 129 130 /** A value for the errType, with a originalType of noType */ 131 public final Type errType; 132 133 /** A value for the unknown type. */ 134 public final Type unknownType; 135 136 /** The builtin type of all arrays. */ 137 public final ClassSymbol arrayClass; 138 public final MethodSymbol arrayCloneMethod; 139 140 /** VGJ: The (singleton) type of all bound types. */ 141 public final ClassSymbol boundClass; 142 143 /** The builtin type of all methods. */ 144 public final ClassSymbol methodClass; 145 146 /** Predefined types. 147 */ 148 public final Type objectType; 149 public final Type classType; 150 public final Type classLoaderType; 151 public final Type stringType; 152 public final Type stringBufferType; 153 public final Type stringBuilderType; 154 public final Type cloneableType; 155 public final Type serializableType; 156 public final Type serializedLambdaType; 157 public final Type methodHandleType; 158 public final Type methodHandleLookupType; 159 public final Type methodTypeType; 160 public final Type nativeHeaderType; 161 public final Type throwableType; 162 public final Type errorType; 163 public final Type interruptedExceptionType; 164 public final Type illegalArgumentExceptionType; 165 public final Type exceptionType; 166 public final Type runtimeExceptionType; 167 public final Type classNotFoundExceptionType; 168 public final Type noClassDefFoundErrorType; 169 public final Type noSuchFieldErrorType; 170 public final Type assertionErrorType; 171 public final Type cloneNotSupportedExceptionType; 172 public final Type annotationType; 173 public final TypeSymbol enumSym; 174 public final Type listType; 175 public final Type collectionsType; 176 public final Type comparableType; 177 public final Type comparatorType; 178 public final Type arraysType; 179 public final Type iterableType; 180 public final Type iteratorType; 181 public final Type annotationTargetType; 182 public final Type overrideType; 183 public final Type retentionType; 184 public final Type deprecatedType; 185 public final Type suppressWarningsType; 186 public final Type inheritedType; 187 public final Type profileType; 188 public final Type proprietaryType; 189 public final Type systemType; 190 public final Type autoCloseableType; 191 public final Type trustMeType; 192 public final Type lambdaMetafactory; 193 public final Type repeatableType; 194 public final Type documentedType; 195 public final Type elementTypeType; 196 public final Type functionalInterfaceType; 197 198 /** The symbol representing the length field of an array. 199 */ 200 public final VarSymbol lengthVar; 201 202 /** The null check operator. */ 203 public final OperatorSymbol nullcheck; 204 205 /** The symbol representing the final finalize method on enums */ 206 public final MethodSymbol enumFinalFinalize; 207 208 /** The symbol representing the close method on TWR AutoCloseable type */ 209 public final MethodSymbol autoCloseableClose; 210 211 /** The predefined type that belongs to a tag. 212 */ 213 public final Type[] typeOfTag = new Type[TypeTag.getTypeTagCount()]; 214 215 /** The name of the class that belongs to a basix type tag. 216 */ 217 public final Name[] boxedName = new Name[TypeTag.getTypeTagCount()]; 218 219 /** A set containing all operator names. 220 */ 221 public final Set<Name> operatorNames = new HashSet<>(); 222 223 /** A hashtable containing the encountered top-level and member classes, 224 * indexed by flat names. The table does not contain local classes. 225 * It should be updated from the outside to reflect classes defined 226 * by compiled source files. 227 */ 228 public final Map<Name, ClassSymbol> classes = new HashMap<>(); 229 230 /** A hashtable containing the encountered packages. 231 * the table should be updated from outside to reflect packages defined 232 * by compiled source files. 233 */ 234 public final Map<Name, PackageSymbol> packages = new HashMap<>(); 235 236 public void initType(Type type, ClassSymbol c) { 237 type.tsym = c; 238 typeOfTag[type.getTag().ordinal()] = type; 239 } 240 241 public void initType(Type type, String name) { 242 initType( 243 type, 244 new ClassSymbol( 245 PUBLIC, names.fromString(name), type, rootPackage)); 246 } 247 248 public void initType(Type type, String name, String bname) { 249 initType(type, name); 250 boxedName[type.getTag().ordinal()] = names.fromString("java.lang." + bname); 251 } 252 253 /** The class symbol that owns all predefined symbols. 254 */ 255 public final ClassSymbol predefClass; 256 257 /** Enter a constant into symbol table. 258 * @param name The constant's name. 259 * @param type The constant's type. 260 */ 261 private VarSymbol enterConstant(String name, Type type) { 262 VarSymbol c = new VarSymbol( 263 PUBLIC | STATIC | FINAL, 264 names.fromString(name), 265 type, 266 predefClass); 267 c.setData(type.constValue()); 268 predefClass.members().enter(c); 269 return c; 270 } 271 272 /** Enter a binary operation into symbol table. 273 * @param name The name of the operator. 274 * @param left The type of the left operand. 275 * @param right The type of the left operand. 276 * @param res The operation's result type. 277 * @param opcode The operation's bytecode instruction. 278 */ 279 private void enterBinop(String name, 280 Type left, Type right, Type res, 281 int opcode) { 282 predefClass.members().enter( 283 new OperatorSymbol( 284 makeOperatorName(name), 285 new MethodType(List.of(left, right), res, 286 List.<Type>nil(), methodClass), 287 opcode, 288 predefClass)); 289 } 290 291 /** Enter a binary operation, as above but with two opcodes, 292 * which get encoded as 293 * {@code (opcode1 << ByteCodeTags.preShift) + opcode2 }. 294 * @param opcode1 First opcode. 295 * @param opcode2 Second opcode. 296 */ 297 private void enterBinop(String name, 298 Type left, Type right, Type res, 299 int opcode1, int opcode2) { 300 enterBinop( 301 name, left, right, res, (opcode1 << ByteCodes.preShift) | opcode2); 302 } 303 304 /** Enter a unary operation into symbol table. 305 * @param name The name of the operator. 306 * @param arg The type of the operand. 307 * @param res The operation's result type. 308 * @param opcode The operation's bytecode instruction. 309 */ 310 private OperatorSymbol enterUnop(String name, 311 Type arg, 312 Type res, 313 int opcode) { 314 OperatorSymbol sym = 315 new OperatorSymbol(makeOperatorName(name), 316 new MethodType(List.of(arg), 317 res, 318 List.<Type>nil(), 319 methodClass), 320 opcode, 321 predefClass); 322 predefClass.members().enter(sym); 323 return sym; 324 } 325 326 /** 327 * Create a new operator name from corresponding String representation 328 * and add the name to the set of known operator names. 329 */ 330 private Name makeOperatorName(String name) { 331 Name opName = names.fromString(name); 332 operatorNames.add(opName); 333 return opName; 334 } 335 336 /** Enter a class into symbol table. 337 * @param s The name of the class. 338 */ 339 private Type enterClass(String s) { 340 return enterClass(names.fromString(s)).type; 341 } 342 343 public void synthesizeEmptyInterfaceIfMissing(final Type type) { 344 final Completer completer = type.tsym.completer; 345 if (completer != null) { 346 type.tsym.completer = new Completer() { 347 public void complete(Symbol sym) throws CompletionFailure { 348 try { 349 completer.complete(sym); 350 } catch (CompletionFailure e) { 351 sym.flags_field |= (PUBLIC | INTERFACE); 352 ((ClassType) sym.type).supertype_field = objectType; 353 } 354 } 355 }; 356 } 357 } 358 359 public void synthesizeBoxTypeIfMissing(final Type type) { 360 ClassSymbol sym = enterClass(boxedName[type.getTag().ordinal()]); 361 final Completer completer = sym.completer; 362 if (completer != null) { 363 sym.completer = new Completer() { 364 public void complete(Symbol sym) throws CompletionFailure { 365 try { 366 completer.complete(sym); 367 } catch (CompletionFailure e) { 368 sym.flags_field |= PUBLIC; 369 ((ClassType) sym.type).supertype_field = objectType; 370 MethodSymbol boxMethod = 371 new MethodSymbol(PUBLIC | STATIC, names.valueOf, 372 new MethodType(List.of(type), sym.type, 373 List.<Type>nil(), methodClass), 374 sym); 375 sym.members().enter(boxMethod); 376 MethodSymbol unboxMethod = 377 new MethodSymbol(PUBLIC, 378 type.tsym.name.append(names.Value), // x.intValue() 379 new MethodType(List.<Type>nil(), type, 380 List.<Type>nil(), methodClass), 381 sym); 382 sym.members().enter(unboxMethod); 383 } 384 } 385 }; 386 } 387 388 } 389 390 // Enter a synthetic class that is used to mark classes in ct.sym. 391 // This class does not have a class file. 392 private Type enterSyntheticAnnotation(String name) { 393 ClassType type = (ClassType)enterClass(name); 394 ClassSymbol sym = (ClassSymbol)type.tsym; 395 sym.completer = null; 396 sym.flags_field = PUBLIC|ACYCLIC|ANNOTATION|INTERFACE; 397 sym.erasure_field = type; 398 sym.members_field = WriteableScope.create(sym); 399 type.typarams_field = List.nil(); 400 type.allparams_field = List.nil(); 401 type.supertype_field = annotationType; 402 type.interfaces_field = List.nil(); 403 return type; 404 } 405 406 /** Constructor; enters all predefined identifiers and operators 407 * into symbol table. 408 */ 409 protected Symtab(Context context) throws CompletionFailure { 410 context.put(symtabKey, this); 411 412 names = Names.instance(context); 413 target = Target.instance(context); 414 415 // Create the unknown type 416 unknownType = new UnknownType(); 417 418 // create the basic builtin symbols 419 rootPackage = new PackageSymbol(names.empty, null); 420 packages.put(names.empty, rootPackage); 421 final JavacMessages messages = JavacMessages.instance(context); 422 unnamedPackage = new PackageSymbol(names.empty, rootPackage) { 423 public String toString() { 424 return messages.getLocalizedString("compiler.misc.unnamed.package"); 425 } 426 }; 427 noSymbol = new TypeSymbol(Kinds.NIL, 0, names.empty, Type.noType, rootPackage) { 428 public <R, P> R accept(ElementVisitor<R, P> v, P p) { 429 return v.visitUnknown(this, p); 430 } 431 }; 432 433 // create the error symbols 434 errSymbol = new ClassSymbol(PUBLIC|STATIC|ACYCLIC, names.any, null, rootPackage); 435 errType = new ErrorType(errSymbol, Type.noType); 436 437 unknownSymbol = new ClassSymbol(PUBLIC|STATIC|ACYCLIC, names.fromString("<any?>"), null, rootPackage); 438 unknownSymbol.members_field = new Scope.ErrorScope(unknownSymbol); 439 unknownSymbol.type = unknownType; 440 441 // initialize builtin types 442 initType(byteType, "byte", "Byte"); 443 initType(shortType, "short", "Short"); 444 initType(charType, "char", "Character"); 445 initType(intType, "int", "Integer"); 446 initType(longType, "long", "Long"); 447 initType(floatType, "float", "Float"); 448 initType(doubleType, "double", "Double"); 449 initType(booleanType, "boolean", "Boolean"); 450 initType(voidType, "void", "Void"); 451 initType(botType, "<nulltype>"); 452 initType(errType, errSymbol); 453 initType(unknownType, unknownSymbol); 454 455 // the builtin class of all arrays 456 arrayClass = new ClassSymbol(PUBLIC|ACYCLIC, names.Array, noSymbol); 457 458 // VGJ 459 boundClass = new ClassSymbol(PUBLIC|ACYCLIC, names.Bound, noSymbol); 460 boundClass.members_field = new Scope.ErrorScope(boundClass); 461 462 // the builtin class of all methods 463 methodClass = new ClassSymbol(PUBLIC|ACYCLIC, names.Method, noSymbol); 464 methodClass.members_field = new Scope.ErrorScope(boundClass); 465 466 // Create class to hold all predefined constants and operations. 467 predefClass = new ClassSymbol(PUBLIC|ACYCLIC, names.empty, rootPackage); 468 WriteableScope scope = WriteableScope.create(predefClass); 469 predefClass.members_field = scope; 470 471 // Get the initial completer for Symbols from the ClassFinder 472 initialCompleter = ClassFinder.instance(context).getCompleter(); 473 rootPackage.completer = initialCompleter; 474 unnamedPackage.completer = initialCompleter; 475 476 // Enter symbols for basic types. 477 scope.enter(byteType.tsym); 478 scope.enter(shortType.tsym); 479 scope.enter(charType.tsym); 480 scope.enter(intType.tsym); 481 scope.enter(longType.tsym); 482 scope.enter(floatType.tsym); 483 scope.enter(doubleType.tsym); 484 scope.enter(booleanType.tsym); 485 scope.enter(errType.tsym); 486 487 // Enter symbol for the errSymbol 488 scope.enter(errSymbol); 489 490 classes.put(predefClass.fullname, predefClass); 491 492 // Enter predefined classes. 493 objectType = enterClass("java.lang.Object"); 494 classType = enterClass("java.lang.Class"); 495 stringType = enterClass("java.lang.String"); 496 stringBufferType = enterClass("java.lang.StringBuffer"); 497 stringBuilderType = enterClass("java.lang.StringBuilder"); 498 cloneableType = enterClass("java.lang.Cloneable"); 499 throwableType = enterClass("java.lang.Throwable"); 500 serializableType = enterClass("java.io.Serializable"); 501 serializedLambdaType = enterClass("java.lang.invoke.SerializedLambda"); 502 methodHandleType = enterClass("java.lang.invoke.MethodHandle"); 503 methodHandleLookupType = enterClass("java.lang.invoke.MethodHandles$Lookup"); 504 methodTypeType = enterClass("java.lang.invoke.MethodType"); 505 errorType = enterClass("java.lang.Error"); 506 illegalArgumentExceptionType = enterClass("java.lang.IllegalArgumentException"); 507 interruptedExceptionType = enterClass("java.lang.InterruptedException"); 508 exceptionType = enterClass("java.lang.Exception"); 509 runtimeExceptionType = enterClass("java.lang.RuntimeException"); 510 classNotFoundExceptionType = enterClass("java.lang.ClassNotFoundException"); 511 noClassDefFoundErrorType = enterClass("java.lang.NoClassDefFoundError"); 512 noSuchFieldErrorType = enterClass("java.lang.NoSuchFieldError"); 513 assertionErrorType = enterClass("java.lang.AssertionError"); 514 cloneNotSupportedExceptionType = enterClass("java.lang.CloneNotSupportedException"); 515 annotationType = enterClass("java.lang.annotation.Annotation"); 516 classLoaderType = enterClass("java.lang.ClassLoader"); 517 enumSym = enterClass(names.java_lang_Enum); 518 enumFinalFinalize = 519 new MethodSymbol(PROTECTED|FINAL|HYPOTHETICAL, 520 names.finalize, 521 new MethodType(List.<Type>nil(), voidType, 522 List.<Type>nil(), methodClass), 523 enumSym); 524 listType = enterClass("java.util.List"); 525 collectionsType = enterClass("java.util.Collections"); 526 comparableType = enterClass("java.lang.Comparable"); 527 comparatorType = enterClass("java.util.Comparator"); 528 arraysType = enterClass("java.util.Arrays"); 529 iterableType = enterClass("java.lang.Iterable"); 530 iteratorType = enterClass("java.util.Iterator"); 531 annotationTargetType = enterClass("java.lang.annotation.Target"); 532 overrideType = enterClass("java.lang.Override"); 533 retentionType = enterClass("java.lang.annotation.Retention"); 534 deprecatedType = enterClass("java.lang.Deprecated"); 535 suppressWarningsType = enterClass("java.lang.SuppressWarnings"); 536 inheritedType = enterClass("java.lang.annotation.Inherited"); 537 repeatableType = enterClass("java.lang.annotation.Repeatable"); 538 documentedType = enterClass("java.lang.annotation.Documented"); 539 elementTypeType = enterClass("java.lang.annotation.ElementType"); 540 systemType = enterClass("java.lang.System"); 541 autoCloseableType = enterClass("java.lang.AutoCloseable"); 542 autoCloseableClose = new MethodSymbol(PUBLIC, 543 names.close, 544 new MethodType(List.<Type>nil(), voidType, 545 List.of(exceptionType), methodClass), 546 autoCloseableType.tsym); 547 trustMeType = enterClass("java.lang.SafeVarargs"); 548 nativeHeaderType = enterClass("java.lang.annotation.Native"); 549 lambdaMetafactory = enterClass("java.lang.invoke.LambdaMetafactory"); 550 functionalInterfaceType = enterClass("java.lang.FunctionalInterface"); 551 552 synthesizeEmptyInterfaceIfMissing(autoCloseableType); 553 synthesizeEmptyInterfaceIfMissing(cloneableType); 554 synthesizeEmptyInterfaceIfMissing(serializableType); 555 synthesizeEmptyInterfaceIfMissing(lambdaMetafactory); 556 synthesizeEmptyInterfaceIfMissing(serializedLambdaType); 557 synthesizeBoxTypeIfMissing(doubleType); 558 synthesizeBoxTypeIfMissing(floatType); 559 synthesizeBoxTypeIfMissing(voidType); 560 561 // Enter a synthetic class that is used to mark internal 562 // proprietary classes in ct.sym. This class does not have a 563 // class file. 564 proprietaryType = enterSyntheticAnnotation("sun.Proprietary+Annotation"); 565 566 // Enter a synthetic class that is used to provide profile info for 567 // classes in ct.sym. This class does not have a class file. 568 profileType = enterSyntheticAnnotation("jdk.Profile+Annotation"); 569 MethodSymbol m = new MethodSymbol(PUBLIC | ABSTRACT, names.value, intType, profileType.tsym); 570 profileType.tsym.members().enter(m); 571 572 // Enter a class for arrays. 573 // The class implements java.lang.Cloneable and java.io.Serializable. 574 // It has a final length field and a clone method. 575 ClassType arrayClassType = (ClassType)arrayClass.type; 576 arrayClassType.supertype_field = objectType; 577 arrayClassType.interfaces_field = List.of(cloneableType, serializableType); 578 arrayClass.members_field = WriteableScope.create(arrayClass); 579 lengthVar = new VarSymbol( 580 PUBLIC | FINAL, 581 names.length, 582 intType, 583 arrayClass); 584 arrayClass.members().enter(lengthVar); 585 arrayCloneMethod = new MethodSymbol( 586 PUBLIC, 587 names.clone, 588 new MethodType(List.<Type>nil(), objectType, 589 List.<Type>nil(), methodClass), 590 arrayClass); 591 arrayClass.members().enter(arrayCloneMethod); 592 593 // Enter operators. 594 /* Internally we use +++, --- for unary +, - to reduce +, - operators 595 * overloading 596 */ 597 enterUnop("+++", doubleType, doubleType, nop); 598 enterUnop("+++", floatType, floatType, nop); 599 enterUnop("+++", longType, longType, nop); 600 enterUnop("+++", intType, intType, nop); 601 602 enterUnop("---", doubleType, doubleType, dneg); 603 enterUnop("---", floatType, floatType, fneg); 604 enterUnop("---", longType, longType, lneg); 605 enterUnop("---", intType, intType, ineg); 606 607 enterUnop("~", longType, longType, lxor); 608 enterUnop("~", intType, intType, ixor); 609 610 enterUnop("++", doubleType, doubleType, dadd); 611 enterUnop("++", floatType, floatType, fadd); 612 enterUnop("++", longType, longType, ladd); 613 enterUnop("++", intType, intType, iadd); 614 enterUnop("++", charType, charType, iadd); 615 enterUnop("++", shortType, shortType, iadd); 616 enterUnop("++", byteType, byteType, iadd); 617 618 enterUnop("--", doubleType, doubleType, dsub); 619 enterUnop("--", floatType, floatType, fsub); 620 enterUnop("--", longType, longType, lsub); 621 enterUnop("--", intType, intType, isub); 622 enterUnop("--", charType, charType, isub); 623 enterUnop("--", shortType, shortType, isub); 624 enterUnop("--", byteType, byteType, isub); 625 626 enterUnop("!", booleanType, booleanType, bool_not); 627 nullcheck = enterUnop("<*nullchk*>", objectType, objectType, nullchk); 628 629 // string concatenation 630 enterBinop("+", stringType, objectType, stringType, string_add); 631 enterBinop("+", objectType, stringType, stringType, string_add); 632 enterBinop("+", stringType, stringType, stringType, string_add); 633 enterBinop("+", stringType, intType, stringType, string_add); 634 enterBinop("+", stringType, longType, stringType, string_add); 635 enterBinop("+", stringType, floatType, stringType, string_add); 636 enterBinop("+", stringType, doubleType, stringType, string_add); 637 enterBinop("+", stringType, booleanType, stringType, string_add); 638 enterBinop("+", stringType, botType, stringType, string_add); 639 enterBinop("+", intType, stringType, stringType, string_add); 640 enterBinop("+", longType, stringType, stringType, string_add); 641 enterBinop("+", floatType, stringType, stringType, string_add); 642 enterBinop("+", doubleType, stringType, stringType, string_add); 643 enterBinop("+", booleanType, stringType, stringType, string_add); 644 enterBinop("+", botType, stringType, stringType, string_add); 645 646 // these errors would otherwise be matched as string concatenation 647 enterBinop("+", botType, botType, botType, error); 648 enterBinop("+", botType, intType, botType, error); 649 enterBinop("+", botType, longType, botType, error); 650 enterBinop("+", botType, floatType, botType, error); 651 enterBinop("+", botType, doubleType, botType, error); 652 enterBinop("+", botType, booleanType, botType, error); 653 enterBinop("+", botType, objectType, botType, error); 654 enterBinop("+", intType, botType, botType, error); 655 enterBinop("+", longType, botType, botType, error); 656 enterBinop("+", floatType, botType, botType, error); 657 enterBinop("+", doubleType, botType, botType, error); 658 enterBinop("+", booleanType, botType, botType, error); 659 enterBinop("+", objectType, botType, botType, error); 660 661 enterBinop("+", doubleType, doubleType, doubleType, dadd); 662 enterBinop("+", floatType, floatType, floatType, fadd); 663 enterBinop("+", longType, longType, longType, ladd); 664 enterBinop("+", intType, intType, intType, iadd); 665 666 enterBinop("-", doubleType, doubleType, doubleType, dsub); 667 enterBinop("-", floatType, floatType, floatType, fsub); 668 enterBinop("-", longType, longType, longType, lsub); 669 enterBinop("-", intType, intType, intType, isub); 670 671 enterBinop("*", doubleType, doubleType, doubleType, dmul); 672 enterBinop("*", floatType, floatType, floatType, fmul); 673 enterBinop("*", longType, longType, longType, lmul); 674 enterBinop("*", intType, intType, intType, imul); 675 676 enterBinop("/", doubleType, doubleType, doubleType, ddiv); 677 enterBinop("/", floatType, floatType, floatType, fdiv); 678 enterBinop("/", longType, longType, longType, ldiv); 679 enterBinop("/", intType, intType, intType, idiv); 680 681 enterBinop("%", doubleType, doubleType, doubleType, dmod); 682 enterBinop("%", floatType, floatType, floatType, fmod); 683 enterBinop("%", longType, longType, longType, lmod); 684 enterBinop("%", intType, intType, intType, imod); 685 686 enterBinop("&", booleanType, booleanType, booleanType, iand); 687 enterBinop("&", longType, longType, longType, land); 688 enterBinop("&", intType, intType, intType, iand); 689 690 enterBinop("|", booleanType, booleanType, booleanType, ior); 691 enterBinop("|", longType, longType, longType, lor); 692 enterBinop("|", intType, intType, intType, ior); 693 694 enterBinop("^", booleanType, booleanType, booleanType, ixor); 695 enterBinop("^", longType, longType, longType, lxor); 696 enterBinop("^", intType, intType, intType, ixor); 697 698 enterBinop("<<", longType, longType, longType, lshll); 699 enterBinop("<<", intType, longType, intType, ishll); 700 enterBinop("<<", longType, intType, longType, lshl); 701 enterBinop("<<", intType, intType, intType, ishl); 702 703 enterBinop(">>", longType, longType, longType, lshrl); 704 enterBinop(">>", intType, longType, intType, ishrl); 705 enterBinop(">>", longType, intType, longType, lshr); 706 enterBinop(">>", intType, intType, intType, ishr); 707 708 enterBinop(">>>", longType, longType, longType, lushrl); 709 enterBinop(">>>", intType, longType, intType, iushrl); 710 enterBinop(">>>", longType, intType, longType, lushr); 711 enterBinop(">>>", intType, intType, intType, iushr); 712 713 enterBinop("<", doubleType, doubleType, booleanType, dcmpg, iflt); 714 enterBinop("<", floatType, floatType, booleanType, fcmpg, iflt); 715 enterBinop("<", longType, longType, booleanType, lcmp, iflt); 716 enterBinop("<", intType, intType, booleanType, if_icmplt); 717 718 enterBinop(">", doubleType, doubleType, booleanType, dcmpl, ifgt); 719 enterBinop(">", floatType, floatType, booleanType, fcmpl, ifgt); 720 enterBinop(">", longType, longType, booleanType, lcmp, ifgt); 721 enterBinop(">", intType, intType, booleanType, if_icmpgt); 722 723 enterBinop("<=", doubleType, doubleType, booleanType, dcmpg, ifle); 724 enterBinop("<=", floatType, floatType, booleanType, fcmpg, ifle); 725 enterBinop("<=", longType, longType, booleanType, lcmp, ifle); 726 enterBinop("<=", intType, intType, booleanType, if_icmple); 727 728 enterBinop(">=", doubleType, doubleType, booleanType, dcmpl, ifge); 729 enterBinop(">=", floatType, floatType, booleanType, fcmpl, ifge); 730 enterBinop(">=", longType, longType, booleanType, lcmp, ifge); 731 enterBinop(">=", intType, intType, booleanType, if_icmpge); 732 733 enterBinop("==", objectType, objectType, booleanType, if_acmpeq); 734 enterBinop("==", booleanType, booleanType, booleanType, if_icmpeq); 735 enterBinop("==", doubleType, doubleType, booleanType, dcmpl, ifeq); 736 enterBinop("==", floatType, floatType, booleanType, fcmpl, ifeq); 737 enterBinop("==", longType, longType, booleanType, lcmp, ifeq); 738 enterBinop("==", intType, intType, booleanType, if_icmpeq); 739 740 enterBinop("!=", objectType, objectType, booleanType, if_acmpne); 741 enterBinop("!=", booleanType, booleanType, booleanType, if_icmpne); 742 enterBinop("!=", doubleType, doubleType, booleanType, dcmpl, ifne); 743 enterBinop("!=", floatType, floatType, booleanType, fcmpl, ifne); 744 enterBinop("!=", longType, longType, booleanType, lcmp, ifne); 745 enterBinop("!=", intType, intType, booleanType, if_icmpne); 746 747 enterBinop("&&", booleanType, booleanType, booleanType, bool_and); 748 enterBinop("||", booleanType, booleanType, booleanType, bool_or); 749 } 750 751 /** Define a new class given its name and owner. 752 */ 753 public ClassSymbol defineClass(Name name, Symbol owner) { 754 ClassSymbol c = new ClassSymbol(0, name, owner); 755 if (owner.kind == PCK) 756 Assert.checkNull(classes.get(c.flatname), c); 757 c.completer = initialCompleter; 758 return c; 759 } 760 761 /** Create a new toplevel or member class symbol with given name 762 * and owner and enter in `classes' unless already there. 763 */ 764 public ClassSymbol enterClass(Name name, TypeSymbol owner) { 765 Name flatname = TypeSymbol.formFlatName(name, owner); 766 ClassSymbol c = classes.get(flatname); 767 if (c == null) { 768 c = defineClass(name, owner); 769 classes.put(flatname, c); 770 } else if ((c.name != name || c.owner != owner) && owner.kind == TYP && c.owner.kind == PCK) { 771 // reassign fields of classes that might have been loaded with 772 // their flat names. 773 c.owner.members().remove(c); 774 c.name = name; 775 c.owner = owner; 776 c.fullname = ClassSymbol.formFullName(name, owner); 777 } 778 return c; 779 } 780 781 /** 782 * Creates a new toplevel class symbol with given flat name and 783 * given class (or source) file. 784 * 785 * @param flatName a fully qualified binary class name 786 * @param classFile the class file or compilation unit defining 787 * the class (may be {@code null}) 788 * @return a newly created class symbol 789 * @throws AssertionError if the class symbol already exists 790 */ 791 public ClassSymbol enterClass(Name flatName, JavaFileObject classFile) { 792 ClassSymbol cs = classes.get(flatName); 793 if (cs != null) { 794 String msg = Log.format("%s: completer = %s; class file = %s; source file = %s", 795 cs.fullname, 796 cs.completer, 797 cs.classfile, 798 cs.sourcefile); 799 throw new AssertionError(msg); 800 } 801 Name packageName = Convert.packagePart(flatName); 802 PackageSymbol owner = packageName.isEmpty() 803 ? unnamedPackage 804 : enterPackage(packageName); 805 cs = defineClass(Convert.shortName(flatName), owner); 806 cs.classfile = classFile; 807 classes.put(flatName, cs); 808 return cs; 809 } 810 811 /** Create a new member or toplevel class symbol with given flat name 812 * and enter in `classes' unless already there. 813 */ 814 public ClassSymbol enterClass(Name flatname) { 815 ClassSymbol c = classes.get(flatname); 816 if (c == null) 817 return enterClass(flatname, (JavaFileObject)null); 818 else 819 return c; 820 } 821 822 /** Check to see if a package exists, given its fully qualified name. 823 */ 824 public boolean packageExists(Name fullname) { 825 return enterPackage(fullname).exists(); 826 } 827 828 /** Make a package, given its fully qualified name. 829 */ 830 public PackageSymbol enterPackage(Name fullname) { 831 PackageSymbol p = packages.get(fullname); 832 if (p == null) { 833 Assert.check(!fullname.isEmpty(), "rootPackage missing!"); 834 p = new PackageSymbol( 835 Convert.shortName(fullname), 836 enterPackage(Convert.packagePart(fullname))); 837 p.completer = initialCompleter; 838 packages.put(fullname, p); 839 } 840 return p; 841 } 842 843 /** Make a package, given its unqualified name and enclosing package. 844 */ 845 public PackageSymbol enterPackage(Name name, PackageSymbol owner) { 846 return enterPackage(TypeSymbol.formFullName(name, owner)); 847 } 848} 849