1 /* 2 * Copyright (c) 1999, 2013, 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 26 package com.sun.tools.javac.code; 27 28 import java.util.*; 29 30 import javax.lang.model.element.ElementVisitor; 31 import javax.lang.model.type.TypeVisitor; 32 33 import com.sun.tools.javac.code.Symbol.*; 34 import com.sun.tools.javac.code.Type.*; 35 import com.sun.tools.javac.jvm.*; 36 import com.sun.tools.javac.util.*; 37 import com.sun.tools.javac.util.List; 38 import static com.sun.tools.javac.code.Flags.*; 39 import static com.sun.tools.javac.jvm.ByteCodes.*; 40 import static com.sun.tools.javac.code.TypeTag.*; 41 42 /** A class that defines all predefined constants and operators 43 * as well as special classes such as java.lang.Object, which need 44 * to be known to the compiler. All symbols are held in instance 45 * fields. This makes it possible to work in multiple concurrent 46 * projects, which might use different class files for library classes. 47 * 48 * <p><b>This is NOT part of any supported API. 49 * If you write code that depends on this, you do so at your own risk. 50 * This code and its internal interfaces are subject to change or 51 * deletion without notice.</b> 52 */ 53 public class Symtab { 54 /** The context key for the symbol table. */ 55 protected static final Context.Key<Symtab> symtabKey = 56 new Context.Key<Symtab>(); 57 58 /** Get the symbol table instance. */ 59 public static Symtab instance(Context context) { 60 Symtab instance = context.get(symtabKey); 61 if (instance == null) 62 instance = new Symtab(context); 63 return instance; 64 } 65 66 /** Builtin types. 67 */ 68 public final Type byteType = new Type(BYTE, null); 69 public final Type charType = new Type(CHAR, null); 70 public final Type shortType = new Type(SHORT, null); 71 public final Type intType = new Type(INT, null); 72 public final Type longType = new Type(LONG, null); 73 public final Type floatType = new Type(FLOAT, null); 74 public final Type doubleType = new Type(DOUBLE, null); 75 public final Type booleanType = new Type(BOOLEAN, null); 76 public final Type botType = new BottomType(); 77 public final JCNoType voidType = new JCNoType(VOID); 78 79 private final Names names; 80 private final ClassReader reader; 81 private final Target target; 82 83 /** A symbol for the root package. 84 */ 85 public final PackageSymbol rootPackage; 86 87 /** A symbol for the unnamed package. 88 */ 89 public final PackageSymbol unnamedPackage; 90 91 /** A symbol that stands for a missing symbol. 92 */ 93 public final TypeSymbol noSymbol; 94 95 /** The error symbol. 96 */ 97 public final ClassSymbol errSymbol; 98 99 /** The unknown symbol. 100 */ 101 public final ClassSymbol unknownSymbol; 102 103 /** A value for the errType, with a originalType of noType */ 104 public final Type errType; 105 106 /** A value for the unknown type. */ 107 public final Type unknownType; 108 109 /** The builtin type of all arrays. */ 110 public final ClassSymbol arrayClass; 111 public final MethodSymbol arrayCloneMethod; 112 113 /** VGJ: The (singleton) type of all bound types. */ 114 public final ClassSymbol boundClass; 115 116 /** The builtin type of all methods. */ 117 public final ClassSymbol methodClass; 118 119 /** Predefined types. 120 */ 121 public final Type objectType; 122 public final Type classType; 123 public final Type classLoaderType; 124 public final Type numberType; 125 public final Type stringType; 126 public final Type stringBufferType; 127 public final Type stringBuilderType; 128 public final Type cloneableType; 129 public final Type serializableType; 130 public final Type serializedLambdaType; 131 public final Type methodHandleType; 132 public final Type methodHandleLookupType; 133 public final Type methodTypeType; 134 public final Type nativeHeaderType; 135 public final Type throwableType; 136 public final Type errorType; 137 public final Type interruptedExceptionType; 138 public final Type illegalArgumentExceptionType; 139 public final Type exceptionType; 140 public final Type runtimeExceptionType; 141 public final Type classNotFoundExceptionType; 142 public final Type noClassDefFoundErrorType; 143 public final Type noSuchFieldErrorType; 144 public final Type assertionErrorType; 145 public final Type cloneNotSupportedExceptionType; 146 public final Type annotationType; 147 public final TypeSymbol enumSym; 148 public final Type listType; 149 public final Type collectionsType; 150 public final Type comparableType; 151 public final Type comparatorType; 152 public final Type arraysType; 153 public final Type iterableType; 154 public final Type iteratorType; 155 public final Type annotationTargetType; 156 public final Type overrideType; 157 public final Type retentionType; 158 public final Type deprecatedType; 159 public final Type suppressWarningsType; 160 public final Type inheritedType; 161 public final Type profileType; 162 public final Type proprietaryType; 163 public final Type systemType; 164 public final Type autoCloseableType; 165 public final Type trustMeType; 166 public final Type lambdaMetafactory; 167 public final Type repeatableType; 168 public final Type documentedType; 169 public final Type elementTypeType; 170 public final Type functionalInterfaceType; 171 172 /** The symbol representing the length field of an array. 173 */ 174 public final VarSymbol lengthVar; 175 176 /** The null check operator. */ 177 public final OperatorSymbol nullcheck; 178 179 /** The symbol representing the final finalize method on enums */ 180 public final MethodSymbol enumFinalFinalize; 181 182 /** The symbol representing the close method on TWR AutoCloseable type */ 183 public final MethodSymbol autoCloseableClose; 184 185 /** The predefined type that belongs to a tag. 186 */ 187 public final Type[] typeOfTag = new Type[TypeTag.getTypeTagCount()]; 188 189 /** The name of the class that belongs to a basix type tag. 190 */ 191 public final Name[] boxedName = new Name[TypeTag.getTypeTagCount()]; 192 193 /** A set containing all operator names. 194 */ 195 public final Set<Name> operatorNames = new HashSet<Name>(); 196 197 /** A hashtable containing the encountered top-level and member classes, 198 * indexed by flat names. The table does not contain local classes. 199 * It should be updated from the outside to reflect classes defined 200 * by compiled source files. 201 */ 202 public final Map<Name, ClassSymbol> classes = new HashMap<Name, ClassSymbol>(); 203 204 /** A hashtable containing the encountered packages. 205 * the table should be updated from outside to reflect packages defined 206 * by compiled source files. 207 */ 208 public final Map<Name, PackageSymbol> packages = new HashMap<Name, PackageSymbol>(); 209 210 public void initType(Type type, ClassSymbol c) { 211 type.tsym = c; 212 typeOfTag[type.tag.ordinal()] = type; 213 } 214 215 public void initType(Type type, String name) { 216 initType( 217 type, 218 new ClassSymbol( 219 PUBLIC, names.fromString(name), type, rootPackage)); 220 } 221 222 public void initType(Type type, String name, String bname) { 223 initType(type, name); 224 boxedName[type.tag.ordinal()] = names.fromString("java.lang." + bname); 225 } 226 227 /** The class symbol that owns all predefined symbols. 228 */ 229 public final ClassSymbol predefClass; 230 231 /** Enter a constant into symbol table. 232 * @param name The constant's name. 233 * @param type The constant's type. 234 */ 235 private VarSymbol enterConstant(String name, Type type) { 236 VarSymbol c = new VarSymbol( 237 PUBLIC | STATIC | FINAL, 238 names.fromString(name), 239 type, 240 predefClass); 241 c.setData(type.constValue()); 242 predefClass.members().enter(c); 243 return c; 244 } 245 246 /** Enter a binary operation into symbol table. 247 * @param name The name of the operator. 248 * @param left The type of the left operand. 249 * @param right The type of the left operand. 250 * @param res The operation's result type. 251 * @param opcode The operation's bytecode instruction. 252 */ 253 private void enterBinop(String name, 254 Type left, Type right, Type res, 255 int opcode) { 256 predefClass.members().enter( 257 new OperatorSymbol( 258 makeOperatorName(name), 259 new MethodType(List.of(left, right), res, 260 List.<Type>nil(), methodClass), 261 opcode, 262 predefClass)); 263 } 264 265 /** Enter a binary operation, as above but with two opcodes, 266 * which get encoded as 267 * {@code (opcode1 << ByteCodeTags.preShift) + opcode2 }. 268 * @param opcode1 First opcode. 269 * @param opcode2 Second opcode. 270 */ 271 private void enterBinop(String name, 272 Type left, Type right, Type res, 273 int opcode1, int opcode2) { 274 enterBinop( 275 name, left, right, res, (opcode1 << ByteCodes.preShift) | opcode2); 276 } 277 278 /** Enter a unary operation into symbol table. 279 * @param name The name of the operator. 280 * @param arg The type of the operand. 281 * @param res The operation's result type. 282 * @param opcode The operation's bytecode instruction. 283 */ 284 private OperatorSymbol enterUnop(String name, 285 Type arg, 286 Type res, 287 int opcode) { 288 OperatorSymbol sym = 289 new OperatorSymbol(makeOperatorName(name), 290 new MethodType(List.of(arg), 291 res, 292 List.<Type>nil(), 293 methodClass), 294 opcode, 295 predefClass); 296 predefClass.members().enter(sym); 297 return sym; 298 } 299 300 /** 301 * Create a new operator name from corresponding String representation 302 * and add the name to the set of known operator names. 303 */ 304 private Name makeOperatorName(String name) { 305 Name opName = names.fromString(name); 306 operatorNames.add(opName); 307 return opName; 308 } 309 310 /** Enter a class into symbol table. 311 * @param s The name of the class. 312 */ 313 private Type enterClass(String s) { 314 return reader.enterClass(names.fromString(s)).type; 315 } 316 317 public void synthesizeEmptyInterfaceIfMissing(final Type type) { 318 final Completer completer = type.tsym.completer; 319 if (completer != null) { 320 type.tsym.completer = new Completer() { 321 public void complete(Symbol sym) throws CompletionFailure { 322 try { 323 completer.complete(sym); 324 } catch (CompletionFailure e) { 325 sym.flags_field |= (PUBLIC | INTERFACE); 326 ((ClassType) sym.type).supertype_field = objectType; 327 } 328 } 329 }; 330 } 331 } 332 333 public void synthesizeBoxTypeIfMissing(final Type type) { 334 ClassSymbol sym = reader.enterClass(boxedName[type.tag.ordinal()]); 335 final Completer completer = sym.completer; 336 if (completer != null) { 337 sym.completer = new Completer() { 338 public void complete(Symbol sym) throws CompletionFailure { 339 try { 340 completer.complete(sym); 341 } catch (CompletionFailure e) { 342 sym.flags_field |= PUBLIC; 343 ((ClassType) sym.type).supertype_field = objectType; 344 Name n = target.boxWithConstructors() ? names.init : names.valueOf; 345 MethodSymbol boxMethod = 346 new MethodSymbol(PUBLIC | STATIC, 347 n, 348 new MethodType(List.of(type), sym.type, 349 List.<Type>nil(), methodClass), 350 sym); 351 sym.members().enter(boxMethod); 352 MethodSymbol unboxMethod = 353 new MethodSymbol(PUBLIC, 354 type.tsym.name.append(names.Value), // x.intValue() 355 new MethodType(List.<Type>nil(), type, 356 List.<Type>nil(), methodClass), 357 sym); 358 sym.members().enter(unboxMethod); 359 } 360 } 361 }; 362 } 363 364 } 365 366 // Enter a synthetic class that is used to mark classes in ct.sym. 367 // This class does not have a class file. 368 private Type enterSyntheticAnnotation(String name) { 369 ClassType type = (ClassType)enterClass(name); 370 ClassSymbol sym = (ClassSymbol)type.tsym; 371 sym.completer = null; 372 sym.flags_field = PUBLIC|ACYCLIC|ANNOTATION|INTERFACE; 373 sym.erasure_field = type; 374 sym.members_field = new Scope(sym); 375 type.typarams_field = List.nil(); 376 type.allparams_field = List.nil(); 377 type.supertype_field = annotationType; 378 type.interfaces_field = List.nil(); 379 return type; 380 } 381 382 /** Constructor; enters all predefined identifiers and operators 383 * into symbol table. 384 */ 385 protected Symtab(Context context) throws CompletionFailure { 386 context.put(symtabKey, this); 387 388 names = Names.instance(context); 389 target = Target.instance(context); 390 391 // Create the unknown type 392 unknownType = new Type(UNKNOWN, null) { 393 @Override 394 public <R, P> R accept(TypeVisitor<R, P> v, P p) { 395 return v.visitUnknown(this, p); 396 } 397 }; 398 399 // create the basic builtin symbols 400 rootPackage = new PackageSymbol(names.empty, null); 401 final JavacMessages messages = JavacMessages.instance(context); 402 unnamedPackage = new PackageSymbol(names.empty, rootPackage) { 403 public String toString() { 404 return messages.getLocalizedString("compiler.misc.unnamed.package"); 405 } 406 }; 407 noSymbol = new TypeSymbol(Kinds.NIL, 0, names.empty, Type.noType, rootPackage) { 408 public <R, P> R accept(ElementVisitor<R, P> v, P p) { 409 return v.visitUnknown(this, p); 410 } 411 }; 412 413 // create the error symbols 414 errSymbol = new ClassSymbol(PUBLIC|STATIC|ACYCLIC, names.any, null, rootPackage); 415 errType = new ErrorType(errSymbol, Type.noType); 416 417 unknownSymbol = new ClassSymbol(PUBLIC|STATIC|ACYCLIC, names.fromString("<any?>"), null, rootPackage); 418 unknownSymbol.members_field = new Scope.ErrorScope(unknownSymbol); 419 unknownSymbol.type = unknownType; 420 421 // initialize builtin types 422 initType(byteType, "byte", "Byte"); 423 initType(shortType, "short", "Short"); 424 initType(charType, "char", "Character"); 425 initType(intType, "int", "Integer"); 426 initType(longType, "long", "Long"); 427 initType(floatType, "float", "Float"); 428 initType(doubleType, "double", "Double"); 429 initType(booleanType, "boolean", "Boolean"); 430 initType(voidType, "void", "Void"); 431 initType(botType, "<nulltype>"); 432 initType(errType, errSymbol); 433 initType(unknownType, unknownSymbol); 434 435 // the builtin class of all arrays 436 arrayClass = new ClassSymbol(PUBLIC|ACYCLIC, names.Array, noSymbol); 437 438 // VGJ 439 boundClass = new ClassSymbol(PUBLIC|ACYCLIC, names.Bound, noSymbol); 440 boundClass.members_field = new Scope.ErrorScope(boundClass); 441 442 // the builtin class of all methods 443 methodClass = new ClassSymbol(PUBLIC|ACYCLIC, names.Method, noSymbol); 444 methodClass.members_field = new Scope.ErrorScope(boundClass); 445 446 // Create class to hold all predefined constants and operations. 447 predefClass = new ClassSymbol(PUBLIC|ACYCLIC, names.empty, rootPackage); 448 Scope scope = new Scope(predefClass); 449 predefClass.members_field = scope; 450 451 // Enter symbols for basic types. 452 scope.enter(byteType.tsym); 453 scope.enter(shortType.tsym); 454 scope.enter(charType.tsym); 455 scope.enter(intType.tsym); 456 scope.enter(longType.tsym); 457 scope.enter(floatType.tsym); 458 scope.enter(doubleType.tsym); 459 scope.enter(booleanType.tsym); 460 scope.enter(errType.tsym); 461 462 // Enter symbol for the errSymbol 463 scope.enter(errSymbol); 464 465 classes.put(predefClass.fullname, predefClass); 466 467 reader = ClassReader.instance(context); 468 reader.init(this); 469 470 // Enter predefined classes. 471 objectType = enterClass("java.lang.Object"); 472 classType = enterClass("java.lang.Class"); 473 numberType = enterClass("java.lang.Number"); 474 stringType = enterClass("java.lang.String"); 475 stringBufferType = enterClass("java.lang.StringBuffer"); 476 stringBuilderType = enterClass("java.lang.StringBuilder"); 477 cloneableType = enterClass("java.lang.Cloneable"); 478 throwableType = enterClass("java.lang.Throwable"); 479 serializableType = enterClass("java.io.Serializable"); 480 serializedLambdaType = enterClass("java.lang.invoke.SerializedLambda"); 481 methodHandleType = enterClass("java.lang.invoke.MethodHandle"); 482 methodHandleLookupType = enterClass("java.lang.invoke.MethodHandles$Lookup"); 483 methodTypeType = enterClass("java.lang.invoke.MethodType"); 484 errorType = enterClass("java.lang.Error"); 485 illegalArgumentExceptionType = enterClass("java.lang.IllegalArgumentException"); 486 interruptedExceptionType = enterClass("java.lang.InterruptedException"); 487 exceptionType = enterClass("java.lang.Exception"); 488 runtimeExceptionType = enterClass("java.lang.RuntimeException"); 489 classNotFoundExceptionType = enterClass("java.lang.ClassNotFoundException"); 490 noClassDefFoundErrorType = enterClass("java.lang.NoClassDefFoundError"); 491 noSuchFieldErrorType = enterClass("java.lang.NoSuchFieldError"); 492 assertionErrorType = enterClass("java.lang.AssertionError"); 493 cloneNotSupportedExceptionType = enterClass("java.lang.CloneNotSupportedException"); 494 annotationType = enterClass("java.lang.annotation.Annotation"); 495 classLoaderType = enterClass("java.lang.ClassLoader"); 496 enumSym = reader.enterClass(names.java_lang_Enum); 497 enumFinalFinalize = 498 new MethodSymbol(PROTECTED|FINAL|HYPOTHETICAL, 499 names.finalize, 500 new MethodType(List.<Type>nil(), voidType, 501 List.<Type>nil(), methodClass), 502 enumSym); 503 listType = enterClass("java.util.List"); 504 collectionsType = enterClass("java.util.Collections"); 505 comparableType = enterClass("java.lang.Comparable"); 506 comparatorType = enterClass("java.util.Comparator"); 507 arraysType = enterClass("java.util.Arrays"); 508 iterableType = target.hasIterable() 509 ? enterClass("java.lang.Iterable") 510 : enterClass("java.util.Collection"); 511 iteratorType = enterClass("java.util.Iterator"); 512 annotationTargetType = enterClass("java.lang.annotation.Target"); 513 overrideType = enterClass("java.lang.Override"); 514 retentionType = enterClass("java.lang.annotation.Retention"); 515 deprecatedType = enterClass("java.lang.Deprecated"); 516 suppressWarningsType = enterClass("java.lang.SuppressWarnings"); 517 inheritedType = enterClass("java.lang.annotation.Inherited"); 518 repeatableType = enterClass("java.lang.annotation.Repeatable"); 519 documentedType = enterClass("java.lang.annotation.Documented"); 520 elementTypeType = enterClass("java.lang.annotation.ElementType"); 521 systemType = enterClass("java.lang.System"); 522 autoCloseableType = enterClass("java.lang.AutoCloseable"); 523 autoCloseableClose = new MethodSymbol(PUBLIC, 524 names.close, 525 new MethodType(List.<Type>nil(), voidType, 526 List.of(exceptionType), methodClass), 527 autoCloseableType.tsym); 528 trustMeType = enterClass("java.lang.SafeVarargs"); 529 nativeHeaderType = enterClass("java.lang.annotation.Native"); 530 lambdaMetafactory = enterClass("java.lang.invoke.LambdaMetafactory"); 531 functionalInterfaceType = enterClass("java.lang.FunctionalInterface"); 532 533 synthesizeEmptyInterfaceIfMissing(autoCloseableType); 534 synthesizeEmptyInterfaceIfMissing(cloneableType); 535 synthesizeEmptyInterfaceIfMissing(serializableType); 536 synthesizeEmptyInterfaceIfMissing(lambdaMetafactory); 537 synthesizeEmptyInterfaceIfMissing(serializedLambdaType); 538 synthesizeBoxTypeIfMissing(doubleType); 539 synthesizeBoxTypeIfMissing(floatType); 540 synthesizeBoxTypeIfMissing(voidType); 541 542 // Enter a synthetic class that is used to mark internal 543 // proprietary classes in ct.sym. This class does not have a 544 // class file. 545 proprietaryType = enterSyntheticAnnotation("sun.Proprietary+Annotation"); 546 547 // Enter a synthetic class that is used to provide profile info for 548 // classes in ct.sym. This class does not have a class file. 549 profileType = enterSyntheticAnnotation("jdk.Profile+Annotation"); 550 MethodSymbol m = new MethodSymbol(PUBLIC | ABSTRACT, names.value, intType, profileType.tsym); 551 profileType.tsym.members().enter(m); 552 553 // Enter a class for arrays. 554 // The class implements java.lang.Cloneable and java.io.Serializable. 555 // It has a final length field and a clone method. 556 ClassType arrayClassType = (ClassType)arrayClass.type; 557 arrayClassType.supertype_field = objectType; 558 arrayClassType.interfaces_field = List.of(cloneableType, serializableType); 559 arrayClass.members_field = new Scope(arrayClass); 560 lengthVar = new VarSymbol( 561 PUBLIC | FINAL, 562 names.length, 563 intType, 564 arrayClass); 565 arrayClass.members().enter(lengthVar); 566 arrayCloneMethod = new MethodSymbol( 567 PUBLIC, 568 names.clone, 569 new MethodType(List.<Type>nil(), objectType, 570 List.<Type>nil(), methodClass), 571 arrayClass); 572 arrayClass.members().enter(arrayCloneMethod); 573 574 // Enter operators. 575 enterUnop("+", doubleType, doubleType, nop); 576 enterUnop("+", floatType, floatType, nop); 577 enterUnop("+", longType, longType, nop); 578 enterUnop("+", intType, intType, nop); 579 580 enterUnop("-", doubleType, doubleType, dneg); 581 enterUnop("-", floatType, floatType, fneg); 582 enterUnop("-", longType, longType, lneg); 583 enterUnop("-", intType, intType, ineg); 584 585 enterUnop("~", longType, longType, lxor); 586 enterUnop("~", intType, intType, ixor); 587 588 enterUnop("++", doubleType, doubleType, dadd); 589 enterUnop("++", floatType, floatType, fadd); 590 enterUnop("++", longType, longType, ladd); 591 enterUnop("++", intType, intType, iadd); 592 enterUnop("++", charType, charType, iadd); 593 enterUnop("++", shortType, shortType, iadd); 594 enterUnop("++", byteType, byteType, iadd); 595 596 enterUnop("--", doubleType, doubleType, dsub); 597 enterUnop("--", floatType, floatType, fsub); 598 enterUnop("--", longType, longType, lsub); 599 enterUnop("--", intType, intType, isub); 600 enterUnop("--", charType, charType, isub); 601 enterUnop("--", shortType, shortType, isub); 602 enterUnop("--", byteType, byteType, isub); 603 604 enterUnop("!", booleanType, booleanType, bool_not); 605 nullcheck = enterUnop("<*nullchk*>", objectType, objectType, nullchk); 606 607 // string concatenation 608 enterBinop("+", stringType, objectType, stringType, string_add); 609 enterBinop("+", objectType, stringType, stringType, string_add); 610 enterBinop("+", stringType, stringType, stringType, string_add); 611 enterBinop("+", stringType, intType, stringType, string_add); 612 enterBinop("+", stringType, longType, stringType, string_add); 613 enterBinop("+", stringType, floatType, stringType, string_add); 614 enterBinop("+", stringType, doubleType, stringType, string_add); 615 enterBinop("+", stringType, booleanType, stringType, string_add); 616 enterBinop("+", stringType, botType, stringType, string_add); 617 enterBinop("+", intType, stringType, stringType, string_add); 618 enterBinop("+", longType, stringType, stringType, string_add); 619 enterBinop("+", floatType, stringType, stringType, string_add); 620 enterBinop("+", doubleType, stringType, stringType, string_add); 621 enterBinop("+", booleanType, stringType, stringType, string_add); 622 enterBinop("+", botType, stringType, stringType, string_add); 623 624 // these errors would otherwise be matched as string concatenation 625 enterBinop("+", botType, botType, botType, error); 626 enterBinop("+", botType, intType, botType, error); 627 enterBinop("+", botType, longType, botType, error); 628 enterBinop("+", botType, floatType, botType, error); 629 enterBinop("+", botType, doubleType, botType, error); 630 enterBinop("+", botType, booleanType, botType, error); 631 enterBinop("+", botType, objectType, botType, error); 632 enterBinop("+", intType, botType, botType, error); 633 enterBinop("+", longType, botType, botType, error); 634 enterBinop("+", floatType, botType, botType, error); 635 enterBinop("+", doubleType, botType, botType, error); 636 enterBinop("+", booleanType, botType, botType, error); 637 enterBinop("+", objectType, botType, botType, error); 638 639 enterBinop("+", doubleType, doubleType, doubleType, dadd); 640 enterBinop("+", floatType, floatType, floatType, fadd); 641 enterBinop("+", longType, longType, longType, ladd); 642 enterBinop("+", intType, intType, intType, iadd); 643 644 enterBinop("-", doubleType, doubleType, doubleType, dsub); 645 enterBinop("-", floatType, floatType, floatType, fsub); 646 enterBinop("-", longType, longType, longType, lsub); 647 enterBinop("-", intType, intType, intType, isub); 648 649 enterBinop("*", doubleType, doubleType, doubleType, dmul); 650 enterBinop("*", floatType, floatType, floatType, fmul); 651 enterBinop("*", longType, longType, longType, lmul); 652 enterBinop("*", intType, intType, intType, imul); 653 654 enterBinop("/", doubleType, doubleType, doubleType, ddiv); 655 enterBinop("/", floatType, floatType, floatType, fdiv); 656 enterBinop("/", longType, longType, longType, ldiv); 657 enterBinop("/", intType, intType, intType, idiv); 658 659 enterBinop("%", doubleType, doubleType, doubleType, dmod); 660 enterBinop("%", floatType, floatType, floatType, fmod); 661 enterBinop("%", longType, longType, longType, lmod); 662 enterBinop("%", intType, intType, intType, imod); 663 664 enterBinop("&", booleanType, booleanType, booleanType, iand); 665 enterBinop("&", longType, longType, longType, land); 666 enterBinop("&", intType, intType, intType, iand); 667 668 enterBinop("|", booleanType, booleanType, booleanType, ior); 669 enterBinop("|", longType, longType, longType, lor); 670 enterBinop("|", intType, intType, intType, ior); 671 672 enterBinop("^", booleanType, booleanType, booleanType, ixor); 673 enterBinop("^", longType, longType, longType, lxor); 674 enterBinop("^", intType, intType, intType, ixor); 675 676 enterBinop("<<", longType, longType, longType, lshll); 677 enterBinop("<<", intType, longType, intType, ishll); 678 enterBinop("<<", longType, intType, longType, lshl); 679 enterBinop("<<", intType, intType, intType, ishl); 680 681 enterBinop(">>", longType, longType, longType, lshrl); 682 enterBinop(">>", intType, longType, intType, ishrl); 683 enterBinop(">>", longType, intType, longType, lshr); 684 enterBinop(">>", intType, intType, intType, ishr); 685 686 enterBinop(">>>", longType, longType, longType, lushrl); 687 enterBinop(">>>", intType, longType, intType, iushrl); 688 enterBinop(">>>", longType, intType, longType, lushr); 689 enterBinop(">>>", intType, intType, intType, iushr); 690 691 enterBinop("<", doubleType, doubleType, booleanType, dcmpg, iflt); 692 enterBinop("<", floatType, floatType, booleanType, fcmpg, iflt); 693 enterBinop("<", longType, longType, booleanType, lcmp, iflt); 694 enterBinop("<", intType, intType, booleanType, if_icmplt); 695 696 enterBinop(">", doubleType, doubleType, booleanType, dcmpl, ifgt); 697 enterBinop(">", floatType, floatType, booleanType, fcmpl, ifgt); 698 enterBinop(">", longType, longType, booleanType, lcmp, ifgt); 699 enterBinop(">", intType, intType, booleanType, if_icmpgt); 700 701 enterBinop("<=", doubleType, doubleType, booleanType, dcmpg, ifle); 702 enterBinop("<=", floatType, floatType, booleanType, fcmpg, ifle); 703 enterBinop("<=", longType, longType, booleanType, lcmp, ifle); 704 enterBinop("<=", intType, intType, booleanType, if_icmple); 705 706 enterBinop(">=", doubleType, doubleType, booleanType, dcmpl, ifge); 707 enterBinop(">=", floatType, floatType, booleanType, fcmpl, ifge); 708 enterBinop(">=", longType, longType, booleanType, lcmp, ifge); 709 enterBinop(">=", intType, intType, booleanType, if_icmpge); 710 711 enterBinop("==", objectType, objectType, booleanType, if_acmpeq); 712 enterBinop("==", booleanType, booleanType, booleanType, if_icmpeq); 713 enterBinop("==", doubleType, doubleType, booleanType, dcmpl, ifeq); 714 enterBinop("==", floatType, floatType, booleanType, fcmpl, ifeq); 715 enterBinop("==", longType, longType, booleanType, lcmp, ifeq); 716 enterBinop("==", intType, intType, booleanType, if_icmpeq); 717 718 enterBinop("!=", objectType, objectType, booleanType, if_acmpne); 719 enterBinop("!=", booleanType, booleanType, booleanType, if_icmpne); 720 enterBinop("!=", doubleType, doubleType, booleanType, dcmpl, ifne); 721 enterBinop("!=", floatType, floatType, booleanType, fcmpl, ifne); 722 enterBinop("!=", longType, longType, booleanType, lcmp, ifne); 723 enterBinop("!=", intType, intType, booleanType, if_icmpne); 724 725 enterBinop("&&", booleanType, booleanType, booleanType, bool_and); 726 enterBinop("||", booleanType, booleanType, booleanType, bool_or); 727 } 728 }