1 /* |
|
2 * Copyright (c) 2009, 2010, 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.classfile; |
|
27 |
|
28 import java.io.IOException; |
|
29 import java.util.ArrayList; |
|
30 import java.util.EnumSet; |
|
31 import java.util.List; |
|
32 import java.util.Set; |
|
33 |
|
34 import static com.sun.tools.classfile.ExtendedAnnotation.TargetAttribute.*; |
|
35 |
|
36 /** |
|
37 * See JSR 308 specification, section 4.1 |
|
38 * |
|
39 * <p><b>This is NOT part of any supported API. |
|
40 * If you write code that depends on this, you do so at your own risk. |
|
41 * This code and its internal interfaces are subject to change or |
|
42 * deletion without notice.</b> |
|
43 */ |
|
44 public class ExtendedAnnotation { |
|
45 ExtendedAnnotation(ClassReader cr) throws IOException, Annotation.InvalidAnnotation { |
|
46 annotation = new Annotation(cr); |
|
47 position = read_position(cr); |
|
48 } |
|
49 |
|
50 public ExtendedAnnotation(ConstantPool constant_pool, |
|
51 Annotation annotation, Position position) { |
|
52 this.annotation = annotation; |
|
53 this.position = position; |
|
54 } |
|
55 |
|
56 public int length() { |
|
57 int n = annotation.length(); |
|
58 n += position_length(position); |
|
59 return n; |
|
60 } |
|
61 |
|
62 public final Annotation annotation; |
|
63 public final Position position; |
|
64 |
|
65 private static Position read_position(ClassReader cr) throws IOException, Annotation.InvalidAnnotation { |
|
66 // Copied from ClassReader |
|
67 int tag = (byte)cr.readUnsignedByte(); // cast to introduce signedness |
|
68 if (!TargetType.isValidTargetTypeValue(tag)) |
|
69 throw new Annotation.InvalidAnnotation("invalid type annotation target type value: " + tag); |
|
70 |
|
71 TargetType type = TargetType.fromTargetTypeValue(tag); |
|
72 |
|
73 Position position = new Position(); |
|
74 position.type = type; |
|
75 |
|
76 switch (type) { |
|
77 // type case |
|
78 case TYPECAST: |
|
79 case TYPECAST_GENERIC_OR_ARRAY: |
|
80 // object creation |
|
81 case INSTANCEOF: |
|
82 case INSTANCEOF_GENERIC_OR_ARRAY: |
|
83 // new expression |
|
84 case NEW: |
|
85 case NEW_GENERIC_OR_ARRAY: |
|
86 position.offset = cr.readUnsignedShort(); |
|
87 break; |
|
88 // local variable |
|
89 case LOCAL_VARIABLE: |
|
90 case LOCAL_VARIABLE_GENERIC_OR_ARRAY: |
|
91 int table_length = cr.readUnsignedShort(); |
|
92 position.lvarOffset = new int[table_length]; |
|
93 position.lvarLength = new int[table_length]; |
|
94 position.lvarIndex = new int[table_length]; |
|
95 for (int i = 0; i < table_length; ++i) { |
|
96 position.lvarOffset[i] = cr.readUnsignedShort(); |
|
97 position.lvarLength[i] = cr.readUnsignedShort(); |
|
98 position.lvarIndex[i] = cr.readUnsignedShort(); |
|
99 } |
|
100 break; |
|
101 // method receiver |
|
102 case METHOD_RECEIVER: |
|
103 // Do nothing |
|
104 break; |
|
105 // type parameters |
|
106 case CLASS_TYPE_PARAMETER: |
|
107 case METHOD_TYPE_PARAMETER: |
|
108 position.parameter_index = cr.readUnsignedByte(); |
|
109 break; |
|
110 // type parameter bounds |
|
111 case CLASS_TYPE_PARAMETER_BOUND: |
|
112 case CLASS_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY: |
|
113 case METHOD_TYPE_PARAMETER_BOUND: |
|
114 case METHOD_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY: |
|
115 position.parameter_index = cr.readUnsignedByte(); |
|
116 position.bound_index = cr.readUnsignedByte(); |
|
117 break; |
|
118 // wildcards |
|
119 case WILDCARD_BOUND: |
|
120 case WILDCARD_BOUND_GENERIC_OR_ARRAY: |
|
121 position.wildcard_position = read_position(cr); |
|
122 break; |
|
123 // Class extends and implements clauses |
|
124 case CLASS_EXTENDS: |
|
125 case CLASS_EXTENDS_GENERIC_OR_ARRAY: |
|
126 int in = cr.readUnsignedShort(); |
|
127 if (in == 0xFFFF) |
|
128 in = -1; |
|
129 position.type_index = in; |
|
130 break; |
|
131 // throws |
|
132 case THROWS: |
|
133 position.type_index = cr.readUnsignedShort(); |
|
134 break; |
|
135 case CLASS_LITERAL: |
|
136 case CLASS_LITERAL_GENERIC_OR_ARRAY: |
|
137 position.offset = cr.readUnsignedShort(); |
|
138 break; |
|
139 // method parameter: not specified |
|
140 case METHOD_PARAMETER_GENERIC_OR_ARRAY: |
|
141 position.parameter_index = cr.readUnsignedByte(); |
|
142 break; |
|
143 // method type argument: wasn't specified |
|
144 case NEW_TYPE_ARGUMENT: |
|
145 case NEW_TYPE_ARGUMENT_GENERIC_OR_ARRAY: |
|
146 case METHOD_TYPE_ARGUMENT: |
|
147 case METHOD_TYPE_ARGUMENT_GENERIC_OR_ARRAY: |
|
148 position.offset = cr.readUnsignedShort(); |
|
149 position.type_index = cr.readUnsignedByte(); |
|
150 break; |
|
151 // We don't need to worry abut these |
|
152 case METHOD_RETURN_GENERIC_OR_ARRAY: |
|
153 case FIELD_GENERIC_OR_ARRAY: |
|
154 break; |
|
155 case UNKNOWN: |
|
156 break; |
|
157 default: |
|
158 throw new AssertionError("Cannot be here"); |
|
159 } |
|
160 |
|
161 if (type.hasLocation()) { |
|
162 int len = cr.readUnsignedShort(); |
|
163 List<Integer> loc = new ArrayList<Integer>(len); |
|
164 for (int i = 0; i < len; i++) |
|
165 loc.add(cr.readUnsignedByte()); |
|
166 position.location = loc; |
|
167 } |
|
168 return position; |
|
169 } |
|
170 |
|
171 private static int position_length(Position pos) { |
|
172 int n = 0; |
|
173 n += 1; // target_type |
|
174 switch (pos.type) { |
|
175 // type case |
|
176 case TYPECAST: |
|
177 case TYPECAST_GENERIC_OR_ARRAY: |
|
178 // object creation |
|
179 case INSTANCEOF: |
|
180 case INSTANCEOF_GENERIC_OR_ARRAY: |
|
181 // new expression |
|
182 case NEW: |
|
183 case NEW_GENERIC_OR_ARRAY: |
|
184 n += 2; |
|
185 break; |
|
186 // local variable |
|
187 case LOCAL_VARIABLE: |
|
188 case LOCAL_VARIABLE_GENERIC_OR_ARRAY: |
|
189 n += 2; // table_length; |
|
190 int table_length = pos.lvarOffset.length; |
|
191 n += 2 * table_length; // offset |
|
192 n += 2 * table_length; // length; |
|
193 n += 2 * table_length; // index |
|
194 break; |
|
195 // method receiver |
|
196 case METHOD_RECEIVER: |
|
197 // Do nothing |
|
198 break; |
|
199 // type parameters |
|
200 case CLASS_TYPE_PARAMETER: |
|
201 case METHOD_TYPE_PARAMETER: |
|
202 n += 1; // parameter_index; |
|
203 break; |
|
204 // type parameter bounds |
|
205 case CLASS_TYPE_PARAMETER_BOUND: |
|
206 case CLASS_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY: |
|
207 case METHOD_TYPE_PARAMETER_BOUND: |
|
208 case METHOD_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY: |
|
209 n += 1; // parameter_index |
|
210 n += 1; // bound_index |
|
211 break; |
|
212 case WILDCARD_BOUND: |
|
213 case WILDCARD_BOUND_GENERIC_OR_ARRAY: |
|
214 n += position_length(pos.wildcard_position); |
|
215 break; |
|
216 // Class extends and implements clauses |
|
217 case CLASS_EXTENDS: |
|
218 case CLASS_EXTENDS_GENERIC_OR_ARRAY: |
|
219 n += 2; // type_index |
|
220 break; |
|
221 // throws |
|
222 case THROWS: |
|
223 n += 2; // type_index |
|
224 break; |
|
225 case CLASS_LITERAL: |
|
226 case CLASS_LITERAL_GENERIC_OR_ARRAY: |
|
227 n += 1; // offset |
|
228 break; |
|
229 // method parameter: not specified |
|
230 case METHOD_PARAMETER_GENERIC_OR_ARRAY: |
|
231 n += 1; // parameter_index |
|
232 break; |
|
233 // method type argument: wasn't specified |
|
234 case NEW_TYPE_ARGUMENT: |
|
235 case NEW_TYPE_ARGUMENT_GENERIC_OR_ARRAY: |
|
236 case METHOD_TYPE_ARGUMENT: |
|
237 case METHOD_TYPE_ARGUMENT_GENERIC_OR_ARRAY: |
|
238 n += 2; // offset |
|
239 n += 1; // type index |
|
240 break; |
|
241 // We don't need to worry abut these |
|
242 case METHOD_RETURN_GENERIC_OR_ARRAY: |
|
243 case FIELD_GENERIC_OR_ARRAY: |
|
244 break; |
|
245 case UNKNOWN: |
|
246 break; |
|
247 default: |
|
248 } |
|
249 |
|
250 if (pos.type.hasLocation()) { |
|
251 n += 2; // length |
|
252 n += 1 * pos.location.size(); // actual array size |
|
253 } |
|
254 |
|
255 return n; |
|
256 } |
|
257 |
|
258 // Code duplicated from com.sun.tools.javac.code.TypeAnnotations.Position |
|
259 public static class Position { |
|
260 |
|
261 public TargetType type = TargetType.UNKNOWN; |
|
262 |
|
263 // For generic/array types. |
|
264 public List<Integer> location = new ArrayList<Integer>(); |
|
265 |
|
266 // For typecasts, type tests, new (and locals, as start_pc). |
|
267 public int offset = -1; |
|
268 |
|
269 // For locals. |
|
270 public int[] lvarOffset = null; |
|
271 public int[] lvarLength = null; |
|
272 public int[] lvarIndex = null; |
|
273 |
|
274 // For type parameter bound |
|
275 public int bound_index = Integer.MIN_VALUE; |
|
276 |
|
277 // For type parameter and method parameter |
|
278 public int parameter_index = Integer.MIN_VALUE; |
|
279 |
|
280 // For class extends, implements, and throws classes |
|
281 public int type_index = Integer.MIN_VALUE; |
|
282 |
|
283 // For wildcards |
|
284 public Position wildcard_position = null; |
|
285 |
|
286 @Override |
|
287 public String toString() { |
|
288 StringBuilder sb = new StringBuilder(); |
|
289 sb.append('['); |
|
290 sb.append(type); |
|
291 |
|
292 switch (type) { |
|
293 // type case |
|
294 case TYPECAST: |
|
295 case TYPECAST_GENERIC_OR_ARRAY: |
|
296 // object creation |
|
297 case INSTANCEOF: |
|
298 case INSTANCEOF_GENERIC_OR_ARRAY: |
|
299 // new expression |
|
300 case NEW: |
|
301 case NEW_GENERIC_OR_ARRAY: |
|
302 case NEW_TYPE_ARGUMENT: |
|
303 case NEW_TYPE_ARGUMENT_GENERIC_OR_ARRAY: |
|
304 sb.append(", offset = "); |
|
305 sb.append(offset); |
|
306 break; |
|
307 // local variable |
|
308 case LOCAL_VARIABLE: |
|
309 case LOCAL_VARIABLE_GENERIC_OR_ARRAY: |
|
310 sb.append(", {"); |
|
311 for (int i = 0; i < lvarOffset.length; ++i) { |
|
312 if (i != 0) sb.append("; "); |
|
313 sb.append(", start_pc = "); |
|
314 sb.append(lvarOffset[i]); |
|
315 sb.append(", length = "); |
|
316 sb.append(lvarLength[i]); |
|
317 sb.append(", index = "); |
|
318 sb.append(lvarIndex[i]); |
|
319 } |
|
320 sb.append("}"); |
|
321 break; |
|
322 // method receiver |
|
323 case METHOD_RECEIVER: |
|
324 // Do nothing |
|
325 break; |
|
326 // type parameters |
|
327 case CLASS_TYPE_PARAMETER: |
|
328 case METHOD_TYPE_PARAMETER: |
|
329 sb.append(", param_index = "); |
|
330 sb.append(parameter_index); |
|
331 break; |
|
332 // type parameters bound |
|
333 case CLASS_TYPE_PARAMETER_BOUND: |
|
334 case CLASS_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY: |
|
335 case METHOD_TYPE_PARAMETER_BOUND: |
|
336 case METHOD_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY: |
|
337 sb.append(", param_index = "); |
|
338 sb.append(parameter_index); |
|
339 sb.append(", bound_index = "); |
|
340 sb.append(bound_index); |
|
341 break; |
|
342 // wildcard |
|
343 case WILDCARD_BOUND: |
|
344 case WILDCARD_BOUND_GENERIC_OR_ARRAY: |
|
345 sb.append(", wild_card = "); |
|
346 sb.append(wildcard_position); |
|
347 break; |
|
348 // Class extends and implements clauses |
|
349 case CLASS_EXTENDS: |
|
350 case CLASS_EXTENDS_GENERIC_OR_ARRAY: |
|
351 sb.append(", type_index = "); |
|
352 sb.append(type_index); |
|
353 break; |
|
354 // throws |
|
355 case THROWS: |
|
356 sb.append(", type_index = "); |
|
357 sb.append(type_index); |
|
358 break; |
|
359 case CLASS_LITERAL: |
|
360 case CLASS_LITERAL_GENERIC_OR_ARRAY: |
|
361 sb.append(", offset = "); |
|
362 sb.append(offset); |
|
363 break; |
|
364 // method parameter: not specified |
|
365 case METHOD_PARAMETER_GENERIC_OR_ARRAY: |
|
366 sb.append(", param_index = "); |
|
367 sb.append(parameter_index); |
|
368 break; |
|
369 // method type argument: wasn't specified |
|
370 case METHOD_TYPE_ARGUMENT: |
|
371 case METHOD_TYPE_ARGUMENT_GENERIC_OR_ARRAY: |
|
372 sb.append(", offset = "); |
|
373 sb.append(offset); |
|
374 sb.append(", type_index = "); |
|
375 sb.append(type_index); |
|
376 break; |
|
377 // We don't need to worry abut these |
|
378 case METHOD_RETURN_GENERIC_OR_ARRAY: |
|
379 case FIELD_GENERIC_OR_ARRAY: |
|
380 break; |
|
381 case UNKNOWN: |
|
382 break; |
|
383 default: |
|
384 throw new AssertionError("unknown type: " + type); |
|
385 } |
|
386 |
|
387 // Append location data for generics/arrays. |
|
388 if (type.hasLocation()) { |
|
389 sb.append(", location = ("); |
|
390 sb.append(location); |
|
391 sb.append(")"); |
|
392 } |
|
393 |
|
394 sb.append(']'); |
|
395 return sb.toString(); |
|
396 } |
|
397 } |
|
398 |
|
399 // Code duplicated from com.sun.tools.javac.comp.TargetType |
|
400 public enum TargetType { |
|
401 |
|
402 /** For annotations on typecasts. */ |
|
403 TYPECAST(0x00), |
|
404 |
|
405 /** For annotations on a type argument or nested array of a typecast. */ |
|
406 TYPECAST_GENERIC_OR_ARRAY(0x01, HasLocation), |
|
407 |
|
408 /** For annotations on type tests. */ |
|
409 INSTANCEOF(0x02), |
|
410 |
|
411 /** For annotations on a type argument or nested array of a type test. */ |
|
412 INSTANCEOF_GENERIC_OR_ARRAY(0x03, HasLocation), |
|
413 |
|
414 /** For annotations on object creation expressions. */ |
|
415 NEW(0x04), |
|
416 |
|
417 /** |
|
418 * For annotations on a type argument or nested array of an object creation |
|
419 * expression. |
|
420 */ |
|
421 NEW_GENERIC_OR_ARRAY(0x05, HasLocation), |
|
422 |
|
423 |
|
424 /** For annotations on the method receiver. */ |
|
425 METHOD_RECEIVER(0x06), |
|
426 |
|
427 // invalid location |
|
428 // METHOD_RECEIVER_GENERIC_OR_ARRAY(0x07, HasLocation), |
|
429 |
|
430 /** For annotations on local variables. */ |
|
431 LOCAL_VARIABLE(0x08), |
|
432 |
|
433 /** For annotations on a type argument or nested array of a local. */ |
|
434 LOCAL_VARIABLE_GENERIC_OR_ARRAY(0x09, HasLocation), |
|
435 |
|
436 // already handled by regular annotations |
|
437 // METHOD_RETURN(0x0A), |
|
438 |
|
439 /** |
|
440 * For annotations on a type argument or nested array of a method return |
|
441 * type. |
|
442 */ |
|
443 METHOD_RETURN_GENERIC_OR_ARRAY(0x0B, HasLocation), |
|
444 |
|
445 // already handled by regular annotations |
|
446 // METHOD_PARAMETER(0x0C), |
|
447 |
|
448 /** For annotations on a type argument or nested array of a method parameter. */ |
|
449 METHOD_PARAMETER_GENERIC_OR_ARRAY(0x0D, HasLocation), |
|
450 |
|
451 // already handled by regular annotations |
|
452 // FIELD(0x0E), |
|
453 |
|
454 /** For annotations on a type argument or nested array of a field. */ |
|
455 FIELD_GENERIC_OR_ARRAY(0x0F, HasLocation), |
|
456 |
|
457 /** For annotations on a bound of a type parameter of a class. */ |
|
458 CLASS_TYPE_PARAMETER_BOUND(0x10, HasBound, HasParameter), |
|
459 |
|
460 /** |
|
461 * For annotations on a type argument or nested array of a bound of a type |
|
462 * parameter of a class. |
|
463 */ |
|
464 CLASS_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY(0x11, HasBound, HasLocation, HasParameter), |
|
465 |
|
466 /** For annotations on a bound of a type parameter of a method. */ |
|
467 METHOD_TYPE_PARAMETER_BOUND(0x12, HasBound, HasParameter), |
|
468 |
|
469 /** |
|
470 * For annotations on a type argument or nested array of a bound of a type |
|
471 * parameter of a method. |
|
472 */ |
|
473 METHOD_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY(0x13, HasBound, HasLocation, HasParameter), |
|
474 |
|
475 /** For annotations on the type of an "extends" or "implements" clause. */ |
|
476 CLASS_EXTENDS(0x14), |
|
477 |
|
478 /** For annotations on the inner type of an "extends" or "implements" clause. */ |
|
479 CLASS_EXTENDS_GENERIC_OR_ARRAY(0x15, HasLocation), |
|
480 |
|
481 /** For annotations on a throws clause in a method declaration. */ |
|
482 THROWS(0x16), |
|
483 |
|
484 // invalid location |
|
485 // THROWS_GENERIC_OR_ARRAY(0x17, HasLocation), |
|
486 |
|
487 /** For annotations in type arguments of object creation expressions. */ |
|
488 NEW_TYPE_ARGUMENT(0x18), |
|
489 NEW_TYPE_ARGUMENT_GENERIC_OR_ARRAY(0x19, HasLocation), |
|
490 |
|
491 METHOD_TYPE_ARGUMENT(0x1A), |
|
492 METHOD_TYPE_ARGUMENT_GENERIC_OR_ARRAY(0x1B, HasLocation), |
|
493 |
|
494 WILDCARD_BOUND(0x1C, HasBound), |
|
495 WILDCARD_BOUND_GENERIC_OR_ARRAY(0x1D, HasBound, HasLocation), |
|
496 |
|
497 CLASS_LITERAL(0x1E), |
|
498 CLASS_LITERAL_GENERIC_OR_ARRAY(0x1F, HasLocation), |
|
499 |
|
500 METHOD_TYPE_PARAMETER(0x20, HasParameter), |
|
501 |
|
502 // invalid location |
|
503 // METHOD_TYPE_PARAMETER_GENERIC_OR_ARRAY(0x21, HasLocation, HasParameter), |
|
504 |
|
505 CLASS_TYPE_PARAMETER(0x22, HasParameter), |
|
506 |
|
507 // invalid location |
|
508 // CLASS_TYPE_PARAMETER_GENERIC_OR_ARRAY(0x23, HasLocation, HasParameter), |
|
509 |
|
510 /** For annotations with an unknown target. */ |
|
511 UNKNOWN(-1); |
|
512 |
|
513 static final int MAXIMUM_TARGET_TYPE_VALUE = 0x22; |
|
514 |
|
515 private final int targetTypeValue; |
|
516 private Set<TargetAttribute> flags; |
|
517 |
|
518 TargetType(int targetTypeValue, TargetAttribute... attrs) { |
|
519 if (targetTypeValue < Byte.MIN_VALUE |
|
520 || targetTypeValue > Byte.MAX_VALUE) |
|
521 throw new AssertionError("attribute type value needs to be a byte: " + targetTypeValue); |
|
522 this.targetTypeValue = (byte)targetTypeValue; |
|
523 this.flags = EnumSet.noneOf(TargetAttribute.class); |
|
524 for (TargetAttribute attr : attrs) |
|
525 this.flags.add(attr); |
|
526 } |
|
527 |
|
528 /** |
|
529 * Returns whether or not this TargetType represents an annotation whose |
|
530 * target is an inner type of a generic or array type. |
|
531 * |
|
532 * @return true if this TargetType represents an annotation on an inner |
|
533 * type, false otherwise |
|
534 */ |
|
535 public boolean hasLocation() { |
|
536 return flags.contains(HasLocation); |
|
537 } |
|
538 |
|
539 public TargetType getGenericComplement() { |
|
540 if (hasLocation()) |
|
541 return this; |
|
542 else |
|
543 return fromTargetTypeValue(targetTypeValue() + 1); |
|
544 } |
|
545 |
|
546 /** |
|
547 * Returns whether or not this TargetType represents an annotation whose |
|
548 * target has a parameter index. |
|
549 * |
|
550 * @return true if this TargetType has a parameter index, |
|
551 * false otherwise |
|
552 */ |
|
553 public boolean hasParameter() { |
|
554 return flags.contains(HasParameter); |
|
555 } |
|
556 |
|
557 /** |
|
558 * Returns whether or not this TargetType represents an annotation whose |
|
559 * target is a type parameter bound. |
|
560 * |
|
561 * @return true if this TargetType represents an type parameter bound |
|
562 * annotation, false otherwise |
|
563 */ |
|
564 public boolean hasBound() { |
|
565 return flags.contains(HasBound); |
|
566 } |
|
567 |
|
568 public int targetTypeValue() { |
|
569 return this.targetTypeValue; |
|
570 } |
|
571 |
|
572 private static TargetType[] targets = null; |
|
573 |
|
574 private static TargetType[] buildTargets() { |
|
575 TargetType[] targets = new TargetType[MAXIMUM_TARGET_TYPE_VALUE + 1]; |
|
576 TargetType[] alltargets = values(); |
|
577 for (TargetType target : alltargets) |
|
578 if (target.targetTypeValue >= 0) |
|
579 targets[target.targetTypeValue] = target; |
|
580 for (int i = 0; i <= MAXIMUM_TARGET_TYPE_VALUE; ++i) |
|
581 if (targets[i] == null) |
|
582 targets[i] = UNKNOWN; |
|
583 return targets; |
|
584 } |
|
585 |
|
586 public static boolean isValidTargetTypeValue(int tag) { |
|
587 if (targets == null) |
|
588 targets = buildTargets(); |
|
589 |
|
590 if (((byte)tag) == ((byte)UNKNOWN.targetTypeValue)) |
|
591 return true; |
|
592 |
|
593 return (tag >= 0 && tag < targets.length); |
|
594 } |
|
595 |
|
596 public static TargetType fromTargetTypeValue(int tag) { |
|
597 if (targets == null) |
|
598 targets = buildTargets(); |
|
599 |
|
600 if (((byte)tag) == ((byte)UNKNOWN.targetTypeValue)) |
|
601 return UNKNOWN; |
|
602 |
|
603 if (tag < 0 || tag >= targets.length) |
|
604 throw new IllegalArgumentException("Unknown TargetType: " + tag); |
|
605 return targets[tag]; |
|
606 } |
|
607 } |
|
608 |
|
609 static enum TargetAttribute { |
|
610 HasLocation, HasParameter, HasBound; |
|
611 } |
|
612 } |
|