Source Code Cross Referenced for Tree.java in  » 6.0-JDK-Modules-sun » javac-compiler » com » sun » source » tree » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules sun » javac compiler » com.sun.source.tree 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2005-2006 Sun Microsystems, Inc.  All Rights Reserved.
003:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004:         *
005:         * This code is free software; you can redistribute it and/or modify it
006:         * under the terms of the GNU General Public License version 2 only, as
007:         * published by the Free Software Foundation.  Sun designates this
008:         * particular file as subject to the "Classpath" exception as provided
009:         * by Sun in the LICENSE file that accompanied this code.
010:         *
011:         * This code is distributed in the hope that it will be useful, but WITHOUT
012:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013:         * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014:         * version 2 for more details (a copy is included in the LICENSE file that
015:         * accompanied this code).
016:         *
017:         * You should have received a copy of the GNU General Public License version
018:         * 2 along with this work; if not, write to the Free Software Foundation,
019:         * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020:         *
021:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022:         * CA 95054 USA or visit www.sun.com if you need additional information or
023:         * have any questions.
024:         */
025:
026:        package com.sun.source.tree;
027:
028:        /**
029:         * Common interface for all nodes in an abstract syntax tree.
030:         *
031:         * <p><b>WARNING:</b> This interface and its sub-interfaces are 
032:         * subject to change as the Java&trade; programming language evolves.
033:         * These interfaces are implemented by Sun's Java compiler (javac) 
034:         * and should not be implemented either directly or indirectly by 
035:         * other applications.
036:         *
037:         * @author Peter von der Ah&eacute;
038:         * @author Jonathan Gibbons
039:         *
040:         * @since 1.6
041:         */
042:        public interface Tree {
043:
044:            /**
045:             * Enumerates all kinds of trees.
046:             */
047:            public enum Kind {
048:                /**
049:                 * Used for instances of {@link AnnotationTree}.
050:                 */
051:                ANNOTATION(AnnotationTree.class),
052:
053:                /**
054:                 * Used for instances of {@link ArrayAccessTree}.
055:                 */
056:                ARRAY_ACCESS(ArrayAccessTree.class),
057:
058:                /**
059:                 * Used for instances of {@link ArrayTypeTree}.
060:                 */
061:                ARRAY_TYPE(ArrayTypeTree.class),
062:
063:                /**
064:                 * Used for instances of {@link AssertTree}.
065:                 */
066:                ASSERT(AssertTree.class),
067:
068:                /**
069:                 * Used for instances of {@link AssignmentTree}.
070:                 */
071:                ASSIGNMENT(AssignmentTree.class),
072:
073:                /**
074:                 * Used for instances of {@link BlockTree}.
075:                 */
076:                BLOCK(BlockTree.class),
077:
078:                /**
079:                 * Used for instances of {@link BreakTree}.
080:                 */
081:                BREAK(BreakTree.class),
082:
083:                /**
084:                 * Used for instances of {@link CaseTree}.
085:                 */
086:                CASE(CaseTree.class),
087:
088:                /**
089:                 * Used for instances of {@link CatchTree}.
090:                 */
091:                CATCH(CatchTree.class),
092:
093:                /**
094:                 * Used for instances of {@link ClassTree}.
095:                 */
096:                CLASS(ClassTree.class),
097:
098:                /**
099:                 * Used for instances of {@link CompilationUnitTree}.
100:                 */
101:                COMPILATION_UNIT(CompilationUnitTree.class),
102:
103:                /**
104:                 * Used for instances of {@link ConditionalExpressionTree}.
105:                 */
106:                CONDITIONAL_EXPRESSION(ConditionalExpressionTree.class),
107:
108:                /**
109:                 * Used for instances of {@link ContinueTree}.
110:                 */
111:                CONTINUE(ContinueTree.class),
112:
113:                /**
114:                 * Used for instances of {@link DoWhileLoopTree}.
115:                 */
116:                DO_WHILE_LOOP(DoWhileLoopTree.class),
117:
118:                /**
119:                 * Used for instances of {@link EnhancedForLoopTree}.
120:                 */
121:                ENHANCED_FOR_LOOP(EnhancedForLoopTree.class),
122:
123:                /**
124:                 * Used for instances of {@link ExpressionStatementTree}.
125:                 */
126:                EXPRESSION_STATEMENT(ExpressionStatementTree.class),
127:
128:                /**
129:                 * Used for instances of {@link MemberSelectTree}.
130:                 */
131:                MEMBER_SELECT(MemberSelectTree.class),
132:
133:                /**
134:                 * Used for instances of {@link ForLoopTree}.
135:                 */
136:                FOR_LOOP(ForLoopTree.class),
137:
138:                /**
139:                 * Used for instances of {@link IdentifierTree}.
140:                 */
141:                IDENTIFIER(IdentifierTree.class),
142:
143:                /**
144:                 * Used for instances of {@link IfTree}.
145:                 */
146:                IF(IfTree.class),
147:
148:                /**
149:                 * Used for instances of {@link ImportTree}.
150:                 */
151:                IMPORT(ImportTree.class),
152:
153:                /**
154:                 * Used for instances of {@link InstanceOfTree}.
155:                 */
156:                INSTANCE_OF(InstanceOfTree.class),
157:
158:                /**
159:                 * Used for instances of {@link LabeledStatementTree}.
160:                 */
161:                LABELED_STATEMENT(LabeledStatementTree.class),
162:
163:                /**
164:                 * Used for instances of {@link MethodTree}.
165:                 */
166:                METHOD(MethodTree.class),
167:
168:                /**
169:                 * Used for instances of {@link MethodInvocationTree}.
170:                 */
171:                METHOD_INVOCATION(MethodInvocationTree.class),
172:
173:                /**
174:                 * Used for instances of {@link ModifiersTree}.
175:                 */
176:                MODIFIERS(ModifiersTree.class),
177:
178:                /**
179:                 * Used for instances of {@link NewArrayTree}.
180:                 */
181:                NEW_ARRAY(NewArrayTree.class),
182:
183:                /**
184:                 * Used for instances of {@link NewClassTree}.
185:                 */
186:                NEW_CLASS(NewClassTree.class),
187:
188:                /**
189:                 * Used for instances of {@link ParenthesizedTree}.
190:                 */
191:                PARENTHESIZED(ParenthesizedTree.class),
192:
193:                /**
194:                 * Used for instances of {@link PrimitiveTypeTree}.
195:                 */
196:                PRIMITIVE_TYPE(PrimitiveTypeTree.class),
197:
198:                /**
199:                 * Used for instances of {@link ReturnTree}.
200:                 */
201:                RETURN(ReturnTree.class),
202:
203:                /**
204:                 * Used for instances of {@link EmptyStatementTree}.
205:                 */
206:                EMPTY_STATEMENT(EmptyStatementTree.class),
207:
208:                /**
209:                 * Used for instances of {@link SwitchTree}.
210:                 */
211:                SWITCH(SwitchTree.class),
212:
213:                /**
214:                 * Used for instances of {@link SynchronizedTree}.
215:                 */
216:                SYNCHRONIZED(SynchronizedTree.class),
217:
218:                /**
219:                 * Used for instances of {@link ThrowTree}.
220:                 */
221:                THROW(ThrowTree.class),
222:
223:                /**
224:                 * Used for instances of {@link TryTree}.
225:                 */
226:                TRY(TryTree.class),
227:
228:                /**
229:                 * Used for instances of {@link ParameterizedTypeTree}.
230:                 */
231:                PARAMETERIZED_TYPE(ParameterizedTypeTree.class),
232:
233:                /**
234:                 * Used for instances of {@link TypeCastTree}.
235:                 */
236:                TYPE_CAST(TypeCastTree.class),
237:
238:                /**
239:                 * Used for instances of {@link TypeParameterTree}.
240:                 */
241:                TYPE_PARAMETER(TypeParameterTree.class),
242:
243:                /**
244:                 * Used for instances of {@link VariableTree}.
245:                 */
246:                VARIABLE(VariableTree.class),
247:
248:                /**
249:                 * Used for instances of {@link WhileLoopTree}.
250:                 */
251:                WHILE_LOOP(WhileLoopTree.class),
252:
253:                /**
254:                 * Used for instances of {@link UnaryTree} representing postfix
255:                 * increment operator {@code ++}.
256:                 */
257:                POSTFIX_INCREMENT(UnaryTree.class),
258:
259:                /**
260:                 * Used for instances of {@link UnaryTree} representing postfix
261:                 * decrement operator {@code --}.
262:                 */
263:                POSTFIX_DECREMENT(UnaryTree.class),
264:
265:                /**
266:                 * Used for instances of {@link UnaryTree} representing prefix
267:                 * increment operator {@code ++}.
268:                 */
269:                PREFIX_INCREMENT(UnaryTree.class),
270:
271:                /**
272:                 * Used for instances of {@link UnaryTree} representing prefix
273:                 * decrement operator {@code --}.
274:                 */
275:                PREFIX_DECREMENT(UnaryTree.class),
276:
277:                /**
278:                 * Used for instances of {@link UnaryTree} representing unary plus
279:                 * operator {@code +}.
280:                 */
281:                UNARY_PLUS(UnaryTree.class),
282:
283:                /**
284:                 * Used for instances of {@link UnaryTree} representing unary minus
285:                 * operator {@code -}.
286:                 */
287:                UNARY_MINUS(UnaryTree.class),
288:
289:                /**
290:                 * Used for instances of {@link UnaryTree} representing bitwise
291:                 * complement operator {@code ~}.
292:                 */
293:                BITWISE_COMPLEMENT(UnaryTree.class),
294:
295:                /**
296:                 * Used for instances of {@link UnaryTree} representing logical
297:                 * complement operator {@code !}.
298:                 */
299:                LOGICAL_COMPLEMENT(UnaryTree.class),
300:
301:                /**
302:                 * Used for instances of {@link BinaryTree} representing
303:                 * multiplication {@code *}.
304:                 */
305:                MULTIPLY(BinaryTree.class),
306:
307:                /**
308:                 * Used for instances of {@link BinaryTree} representing
309:                 * division {@code /}.
310:                 */
311:                DIVIDE(BinaryTree.class),
312:
313:                /**
314:                 * Used for instances of {@link BinaryTree} representing
315:                 * remainder {@code %}.
316:                 */
317:                REMAINDER(BinaryTree.class),
318:
319:                /**
320:                 * Used for instances of {@link BinaryTree} representing
321:                 * addition or string concatenation {@code +}.
322:                 */
323:                PLUS(BinaryTree.class),
324:
325:                /**
326:                 * Used for instances of {@link BinaryTree} representing
327:                 * subtraction {@code -}.
328:                 */
329:                MINUS(BinaryTree.class),
330:
331:                /**
332:                 * Used for instances of {@link BinaryTree} representing
333:                 * left shift {@code <<}.
334:                 */
335:                LEFT_SHIFT(BinaryTree.class),
336:
337:                /**
338:                 * Used for instances of {@link BinaryTree} representing
339:                 * right shift {@code >>}.
340:                 */
341:                RIGHT_SHIFT(BinaryTree.class),
342:
343:                /**
344:                 * Used for instances of {@link BinaryTree} representing
345:                 * unsigned right shift {@code >>>}.
346:                 */
347:                UNSIGNED_RIGHT_SHIFT(BinaryTree.class),
348:
349:                /**
350:                 * Used for instances of {@link BinaryTree} representing
351:                 * less-than {@code <}.
352:                 */
353:                LESS_THAN(BinaryTree.class),
354:
355:                /**
356:                 * Used for instances of {@link BinaryTree} representing
357:                 * greater-than {@code >}.
358:                 */
359:                GREATER_THAN(BinaryTree.class),
360:
361:                /**
362:                 * Used for instances of {@link BinaryTree} representing
363:                 * less-than-equal {@code <=}.
364:                 */
365:                LESS_THAN_EQUAL(BinaryTree.class),
366:
367:                /**
368:                 * Used for instances of {@link BinaryTree} representing
369:                 * greater-than-equal {@code >=}.
370:                 */
371:                GREATER_THAN_EQUAL(BinaryTree.class),
372:
373:                /**
374:                 * Used for instances of {@link BinaryTree} representing
375:                 * equal-to {@code ==}.
376:                 */
377:                EQUAL_TO(BinaryTree.class),
378:
379:                /**
380:                 * Used for instances of {@link BinaryTree} representing
381:                 * not-equal-to {@code !=}.
382:                 */
383:                NOT_EQUAL_TO(BinaryTree.class),
384:
385:                /**
386:                 * Used for instances of {@link BinaryTree} representing
387:                 * bitwise and logical "and" {@code &}.
388:                 */
389:                AND(BinaryTree.class),
390:
391:                /**
392:                 * Used for instances of {@link BinaryTree} representing
393:                 * bitwise and logical "xor" {@code ^}.
394:                 */
395:                XOR(BinaryTree.class),
396:
397:                /**
398:                 * Used for instances of {@link BinaryTree} representing
399:                 * bitwise and logical "or" {@code |}.
400:                 */
401:                OR(BinaryTree.class),
402:
403:                /**
404:                 * Used for instances of {@link BinaryTree} representing
405:                 * conditional-and {@code &&}.
406:                 */
407:                CONDITIONAL_AND(BinaryTree.class),
408:
409:                /**
410:                 * Used for instances of {@link BinaryTree} representing
411:                 * conditional-or {@code ||}.
412:                 */
413:                CONDITIONAL_OR(BinaryTree.class),
414:
415:                /**
416:                 * Used for instances of {@link CompoundAssignmentTree} representing
417:                 * multiplication assignment {@code *=}.
418:                 */
419:                MULTIPLY_ASSIGNMENT(CompoundAssignmentTree.class),
420:
421:                /**
422:                 * Used for instances of {@link CompoundAssignmentTree} representing
423:                 * division assignment {@code /=}.
424:                 */
425:                DIVIDE_ASSIGNMENT(CompoundAssignmentTree.class),
426:
427:                /**
428:                 * Used for instances of {@link CompoundAssignmentTree} representing
429:                 * remainder assignment {@code %=}.
430:                 */
431:                REMAINDER_ASSIGNMENT(CompoundAssignmentTree.class),
432:
433:                /**
434:                 * Used for instances of {@link CompoundAssignmentTree} representing
435:                 * addition or string concatenation assignment {@code +=}.
436:                 */
437:                PLUS_ASSIGNMENT(CompoundAssignmentTree.class),
438:
439:                /**
440:                 * Used for instances of {@link CompoundAssignmentTree} representing
441:                 * subtraction assignment {@code -=}.
442:                 */
443:                MINUS_ASSIGNMENT(CompoundAssignmentTree.class),
444:
445:                /**
446:                 * Used for instances of {@link CompoundAssignmentTree} representing
447:                 * left shift assignment {@code <<=}.
448:                 */
449:                LEFT_SHIFT_ASSIGNMENT(CompoundAssignmentTree.class),
450:
451:                /**
452:                 * Used for instances of {@link CompoundAssignmentTree} representing
453:                 * right shift assignment {@code >>=}.
454:                 */
455:                RIGHT_SHIFT_ASSIGNMENT(CompoundAssignmentTree.class),
456:
457:                /**
458:                 * Used for instances of {@link CompoundAssignmentTree} representing
459:                 * unsigned right shift assignment {@code >>>=}.
460:                 */
461:                UNSIGNED_RIGHT_SHIFT_ASSIGNMENT(CompoundAssignmentTree.class),
462:
463:                /**
464:                 * Used for instances of {@link CompoundAssignmentTree} representing
465:                 * bitwise and logical "and" assignment {@code &=}.
466:                 */
467:                AND_ASSIGNMENT(CompoundAssignmentTree.class),
468:
469:                /**
470:                 * Used for instances of {@link CompoundAssignmentTree} representing
471:                 * bitwise and logical "xor" assignment {@code ^=}.
472:                 */
473:                XOR_ASSIGNMENT(CompoundAssignmentTree.class),
474:
475:                /**
476:                 * Used for instances of {@link CompoundAssignmentTree} representing
477:                 * bitwise and logical "or" assignment {@code |=}.
478:                 */
479:                OR_ASSIGNMENT(CompoundAssignmentTree.class),
480:
481:                /**
482:                 * Used for instances of {@link LiteralTree} representing
483:                 * an integral literal expression of type {@code int}.
484:                 */
485:                INT_LITERAL(LiteralTree.class),
486:
487:                /**
488:                 * Used for instances of {@link LiteralTree} representing
489:                 * an integral literal expression of type {@code long}.
490:                 */
491:                LONG_LITERAL(LiteralTree.class),
492:
493:                /**
494:                 * Used for instances of {@link LiteralTree} representing
495:                 * a floating-point literal expression of type {@code float}.
496:                 */
497:                FLOAT_LITERAL(LiteralTree.class),
498:
499:                /**
500:                 * Used for instances of {@link LiteralTree} representing
501:                 * a floating-point literal expression of type {@code double}.
502:                 */
503:                DOUBLE_LITERAL(LiteralTree.class),
504:
505:                /**
506:                 * Used for instances of {@link LiteralTree} representing
507:                 * a boolean literal expression of type {@code boolean}.
508:                 */
509:                BOOLEAN_LITERAL(LiteralTree.class),
510:
511:                /**
512:                 * Used for instances of {@link LiteralTree} representing
513:                 * a character literal expression of type {@code char}.
514:                 */
515:                CHAR_LITERAL(LiteralTree.class),
516:
517:                /**
518:                 * Used for instances of {@link LiteralTree} representing
519:                 * a string literal expression of type {@link String}.
520:                 */
521:                STRING_LITERAL(LiteralTree.class),
522:
523:                /**
524:                 * Used for instances of {@link LiteralTree} representing
525:                 * the use of {@code null}.
526:                 */
527:                NULL_LITERAL(LiteralTree.class),
528:
529:                /**
530:                 * Used for instances of {@link WildcardTree} representing
531:                 * an unbounded wildcard type argument.
532:                 */
533:                UNBOUNDED_WILDCARD(WildcardTree.class),
534:
535:                /**
536:                 * Used for instances of {@link WildcardTree} representing
537:                 * an extends bounded wildcard type argument.
538:                 */
539:                EXTENDS_WILDCARD(WildcardTree.class),
540:
541:                /**
542:                 * Used for instances of {@link WildcardTree} representing
543:                 * a super bounded wildcard type argument.
544:                 */
545:                SUPER_WILDCARD(WildcardTree.class),
546:
547:                /**
548:                 * Used for instances of {@link ErroneousTree}.
549:                 */
550:                ERRONEOUS(ErroneousTree.class),
551:
552:                /**
553:                 * An implementation-reserved node. This is the not the node
554:                 * you are looking for.
555:                 */
556:                OTHER(null);
557:
558:                Kind(Class<? extends Tree> intf) {
559:                    associatedInterface = intf;
560:                }
561:
562:                public Class<? extends Tree> asInterface() {
563:                    return associatedInterface;
564:                }
565:
566:                private final Class<? extends Tree> associatedInterface;
567:            }
568:
569:            /**
570:             * Gets the kind of this tree.
571:             *
572:             * @return the kind of this tree.
573:             */
574:            Kind getKind();
575:
576:            /**
577:             * Accept method used to implement the visitor pattern.  The
578:             * visitor pattern is used to implement operations on trees.
579:             *
580:             * @param <R> result type of this operation.
581:             * @param <D> type of additonal data.
582:             */
583:            <R, D> R accept(TreeVisitor<R, D> visitor, D data);
584:        }
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