Mercurial > hg > truffle
annotate src/share/vm/oops/constantPoolOop.hpp @ 371:dbec32712472
6753795: HotSpot crash in strlen() when JVMTI is used
Summary: test for null instead of strlen
Reviewed-by: rasbold
author | never |
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date | Tue, 30 Sep 2008 11:56:01 -0700 |
parents | d1605aabd0a1 |
children | a45484ea312d |
rev | line source |
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0 | 1 /* |
196 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved. |
0 | 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. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // A constantPool is an array containing class constants as described in the | |
26 // class file. | |
27 // | |
28 // Most of the constant pool entries are written during class parsing, which | |
29 // is safe. For klass and string types, the constant pool entry is | |
30 // modified when the entry is resolved. If a klass or string constant pool | |
31 // entry is read without a lock, only the resolved state guarantees that | |
32 // the entry in the constant pool is a klass or String object and | |
33 // not a symbolOop. | |
34 | |
35 class SymbolHashMap; | |
36 | |
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37 class constantPoolOopDesc : public oopDesc { |
0 | 38 friend class VMStructs; |
39 friend class BytecodeInterpreter; // Directly extracts an oop in the pool for fast instanceof/checkcast | |
40 private: | |
41 typeArrayOop _tags; // the tag array describing the constant pool's contents | |
42 constantPoolCacheOop _cache; // the cache holding interpreter runtime information | |
43 klassOop _pool_holder; // the corresponding class | |
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44 int _length; // number of elements in the array |
0 | 45 // only set to non-zero if constant pool is merged by RedefineClasses |
46 int _orig_length; | |
47 | |
48 void set_tags(typeArrayOop tags) { oop_store_without_check((oop*)&_tags, tags); } | |
49 void tag_at_put(int which, jbyte t) { tags()->byte_at_put(which, t); } | |
50 void release_tag_at_put(int which, jbyte t) { tags()->release_byte_at_put(which, t); } | |
51 | |
52 private: | |
53 intptr_t* base() const { return (intptr_t*) (((char*) this) + sizeof(constantPoolOopDesc)); } | |
54 oop* tags_addr() { return (oop*)&_tags; } | |
55 oop* cache_addr() { return (oop*)&_cache; } | |
56 | |
57 oop* obj_at_addr(int which) const { | |
58 assert(is_within_bounds(which), "index out of bounds"); | |
59 return (oop*) &base()[which]; | |
60 } | |
61 | |
62 jint* int_at_addr(int which) const { | |
63 assert(is_within_bounds(which), "index out of bounds"); | |
64 return (jint*) &base()[which]; | |
65 } | |
66 | |
67 jlong* long_at_addr(int which) const { | |
68 assert(is_within_bounds(which), "index out of bounds"); | |
69 return (jlong*) &base()[which]; | |
70 } | |
71 | |
72 jfloat* float_at_addr(int which) const { | |
73 assert(is_within_bounds(which), "index out of bounds"); | |
74 return (jfloat*) &base()[which]; | |
75 } | |
76 | |
77 jdouble* double_at_addr(int which) const { | |
78 assert(is_within_bounds(which), "index out of bounds"); | |
79 return (jdouble*) &base()[which]; | |
80 } | |
81 | |
82 public: | |
83 typeArrayOop tags() const { return _tags; } | |
84 | |
85 // Klass holding pool | |
86 klassOop pool_holder() const { return _pool_holder; } | |
87 void set_pool_holder(klassOop k) { oop_store_without_check((oop*)&_pool_holder, (oop) k); } | |
88 oop* pool_holder_addr() { return (oop*)&_pool_holder; } | |
89 | |
90 // Interpreter runtime support | |
91 constantPoolCacheOop cache() const { return _cache; } | |
92 void set_cache(constantPoolCacheOop cache){ oop_store((oop*)&_cache, cache); } | |
93 | |
94 // Assembly code support | |
95 static int tags_offset_in_bytes() { return offset_of(constantPoolOopDesc, _tags); } | |
96 static int cache_offset_in_bytes() { return offset_of(constantPoolOopDesc, _cache); } | |
97 static int pool_holder_offset_in_bytes() { return offset_of(constantPoolOopDesc, _pool_holder); } | |
98 | |
99 // Storing constants | |
100 | |
101 void klass_at_put(int which, klassOop k) { | |
102 oop_store_without_check((volatile oop *)obj_at_addr(which), oop(k)); | |
103 // The interpreter assumes when the tag is stored, the klass is resolved | |
104 // and the klassOop is a klass rather than a symbolOop, so we need | |
105 // hardware store ordering here. | |
106 release_tag_at_put(which, JVM_CONSTANT_Class); | |
107 if (UseConcMarkSweepGC) { | |
108 // In case the earlier card-mark was consumed by a concurrent | |
109 // marking thread before the tag was updated, redirty the card. | |
110 oop_store_without_check((volatile oop *)obj_at_addr(which), oop(k)); | |
111 } | |
112 } | |
113 | |
114 // For temporary use while constructing constant pool | |
115 void klass_index_at_put(int which, int name_index) { | |
116 tag_at_put(which, JVM_CONSTANT_ClassIndex); | |
117 *int_at_addr(which) = name_index; | |
118 } | |
119 | |
120 // Temporary until actual use | |
121 void unresolved_klass_at_put(int which, symbolOop s) { | |
122 // Overwrite the old index with a GC friendly value so | |
123 // that if GC looks during the transition it won't try | |
124 // to treat a small integer as oop. | |
125 *obj_at_addr(which) = NULL; | |
126 release_tag_at_put(which, JVM_CONSTANT_UnresolvedClass); | |
127 oop_store_without_check(obj_at_addr(which), oop(s)); | |
128 } | |
129 | |
130 // Temporary until actual use | |
131 void unresolved_string_at_put(int which, symbolOop s) { | |
132 *obj_at_addr(which) = NULL; | |
133 release_tag_at_put(which, JVM_CONSTANT_UnresolvedString); | |
134 oop_store_without_check(obj_at_addr(which), oop(s)); | |
135 } | |
136 | |
137 void int_at_put(int which, jint i) { | |
138 tag_at_put(which, JVM_CONSTANT_Integer); | |
139 *int_at_addr(which) = i; | |
140 } | |
141 | |
142 void long_at_put(int which, jlong l) { | |
143 tag_at_put(which, JVM_CONSTANT_Long); | |
144 // *long_at_addr(which) = l; | |
145 Bytes::put_native_u8((address)long_at_addr(which), *((u8*) &l)); | |
146 } | |
147 | |
148 void float_at_put(int which, jfloat f) { | |
149 tag_at_put(which, JVM_CONSTANT_Float); | |
150 *float_at_addr(which) = f; | |
151 } | |
152 | |
153 void double_at_put(int which, jdouble d) { | |
154 tag_at_put(which, JVM_CONSTANT_Double); | |
155 // *double_at_addr(which) = d; | |
156 // u8 temp = *(u8*) &d; | |
157 Bytes::put_native_u8((address) double_at_addr(which), *((u8*) &d)); | |
158 } | |
159 | |
160 void symbol_at_put(int which, symbolOop s) { | |
161 tag_at_put(which, JVM_CONSTANT_Utf8); | |
162 oop_store_without_check(obj_at_addr(which), oop(s)); | |
163 } | |
164 | |
165 void string_at_put(int which, oop str) { | |
166 oop_store((volatile oop*)obj_at_addr(which), str); | |
167 release_tag_at_put(which, JVM_CONSTANT_String); | |
168 if (UseConcMarkSweepGC) { | |
169 // In case the earlier card-mark was consumed by a concurrent | |
170 // marking thread before the tag was updated, redirty the card. | |
171 oop_store_without_check((volatile oop *)obj_at_addr(which), str); | |
172 } | |
173 } | |
174 | |
175 // For temporary use while constructing constant pool | |
176 void string_index_at_put(int which, int string_index) { | |
177 tag_at_put(which, JVM_CONSTANT_StringIndex); | |
178 *int_at_addr(which) = string_index; | |
179 } | |
180 | |
181 void field_at_put(int which, int class_index, int name_and_type_index) { | |
182 tag_at_put(which, JVM_CONSTANT_Fieldref); | |
183 *int_at_addr(which) = ((jint) name_and_type_index<<16) | class_index; | |
184 } | |
185 | |
186 void method_at_put(int which, int class_index, int name_and_type_index) { | |
187 tag_at_put(which, JVM_CONSTANT_Methodref); | |
188 *int_at_addr(which) = ((jint) name_and_type_index<<16) | class_index; | |
189 } | |
190 | |
191 void interface_method_at_put(int which, int class_index, int name_and_type_index) { | |
192 tag_at_put(which, JVM_CONSTANT_InterfaceMethodref); | |
193 *int_at_addr(which) = ((jint) name_and_type_index<<16) | class_index; // Not so nice | |
194 } | |
195 | |
196 void name_and_type_at_put(int which, int name_index, int signature_index) { | |
197 tag_at_put(which, JVM_CONSTANT_NameAndType); | |
198 *int_at_addr(which) = ((jint) signature_index<<16) | name_index; // Not so nice | |
199 } | |
200 | |
201 // Tag query | |
202 | |
203 constantTag tag_at(int which) const { return (constantTag)tags()->byte_at_acquire(which); } | |
204 | |
205 // Whether the entry is a pointer that must be GC'd. | |
206 bool is_pointer_entry(int which) { | |
207 constantTag tag = tag_at(which); | |
208 return tag.is_klass() || | |
209 tag.is_unresolved_klass() || | |
210 tag.is_symbol() || | |
211 tag.is_unresolved_string() || | |
212 tag.is_string(); | |
213 } | |
214 | |
215 // Fetching constants | |
216 | |
217 klassOop klass_at(int which, TRAPS) { | |
218 constantPoolHandle h_this(THREAD, this); | |
219 return klass_at_impl(h_this, which, CHECK_NULL); | |
220 } | |
221 | |
222 symbolOop klass_name_at(int which); // Returns the name, w/o resolving. | |
223 | |
224 klassOop resolved_klass_at(int which) { // Used by Compiler | |
225 guarantee(tag_at(which).is_klass(), "Corrupted constant pool"); | |
226 // Must do an acquire here in case another thread resolved the klass | |
227 // behind our back, lest we later load stale values thru the oop. | |
228 return klassOop((oop)OrderAccess::load_ptr_acquire(obj_at_addr(which))); | |
229 } | |
230 | |
231 // This method should only be used with a cpool lock or during parsing or gc | |
232 symbolOop unresolved_klass_at(int which) { // Temporary until actual use | |
233 symbolOop s = symbolOop((oop)OrderAccess::load_ptr_acquire(obj_at_addr(which))); | |
234 // check that the klass is still unresolved. | |
235 assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool"); | |
236 return s; | |
237 } | |
238 | |
239 // RedefineClasses() API support: | |
240 symbolOop klass_at_noresolve(int which) { return klass_name_at(which); } | |
241 | |
242 jint int_at(int which) { | |
243 assert(tag_at(which).is_int(), "Corrupted constant pool"); | |
244 return *int_at_addr(which); | |
245 } | |
246 | |
247 jlong long_at(int which) { | |
248 assert(tag_at(which).is_long(), "Corrupted constant pool"); | |
249 // return *long_at_addr(which); | |
250 u8 tmp = Bytes::get_native_u8((address)&base()[which]); | |
251 return *((jlong*)&tmp); | |
252 } | |
253 | |
254 jfloat float_at(int which) { | |
255 assert(tag_at(which).is_float(), "Corrupted constant pool"); | |
256 return *float_at_addr(which); | |
257 } | |
258 | |
259 jdouble double_at(int which) { | |
260 assert(tag_at(which).is_double(), "Corrupted constant pool"); | |
261 u8 tmp = Bytes::get_native_u8((address)&base()[which]); | |
262 return *((jdouble*)&tmp); | |
263 } | |
264 | |
265 symbolOop symbol_at(int which) { | |
266 assert(tag_at(which).is_utf8(), "Corrupted constant pool"); | |
267 return symbolOop(*obj_at_addr(which)); | |
268 } | |
269 | |
270 oop string_at(int which, TRAPS) { | |
271 constantPoolHandle h_this(THREAD, this); | |
272 return string_at_impl(h_this, which, CHECK_NULL); | |
273 } | |
274 | |
275 // only called when we are sure a string entry is already resolved (via an | |
276 // earlier string_at call. | |
277 oop resolved_string_at(int which) { | |
278 assert(tag_at(which).is_string(), "Corrupted constant pool"); | |
279 // Must do an acquire here in case another thread resolved the klass | |
280 // behind our back, lest we later load stale values thru the oop. | |
281 return (oop)OrderAccess::load_ptr_acquire(obj_at_addr(which)); | |
282 } | |
283 | |
284 // This method should only be used with a cpool lock or during parsing or gc | |
285 symbolOop unresolved_string_at(int which) { // Temporary until actual use | |
286 symbolOop s = symbolOop((oop)OrderAccess::load_ptr_acquire(obj_at_addr(which))); | |
287 // check that the string is still unresolved. | |
288 assert(tag_at(which).is_unresolved_string(), "Corrupted constant pool"); | |
289 return s; | |
290 } | |
291 | |
292 // Returns an UTF8 for a CONSTANT_String entry at a given index. | |
293 // UTF8 char* representation was chosen to avoid conversion of | |
294 // java_lang_Strings at resolved entries into symbolOops | |
295 // or vice versa. | |
296 char* string_at_noresolve(int which); | |
297 | |
298 jint name_and_type_at(int which) { | |
299 assert(tag_at(which).is_name_and_type(), "Corrupted constant pool"); | |
300 return *int_at_addr(which); | |
301 } | |
302 | |
303 // The following methods (klass_ref_at, klass_ref_at_noresolve, name_ref_at, | |
304 // signature_ref_at, klass_ref_index_at, name_and_type_ref_index_at, | |
305 // name_ref_index_at, signature_ref_index_at) all expect constant pool indices | |
306 // from the bytecodes to be passed in, which are actually potentially byte-swapped | |
307 // contstant pool cache indices. See field_or_method_at. | |
308 | |
309 // Lookup for entries consisting of (klass_index, name_and_type index) | |
310 klassOop klass_ref_at(int which, TRAPS); | |
311 symbolOop klass_ref_at_noresolve(int which); | |
312 symbolOop name_ref_at(int which); | |
313 symbolOop signature_ref_at(int which); // the type descriptor | |
314 | |
315 int klass_ref_index_at(int which); | |
316 int name_and_type_ref_index_at(int which); | |
317 | |
318 // Lookup for entries consisting of (name_index, signature_index) | |
319 int name_ref_index_at(int which); | |
320 int signature_ref_index_at(int which); | |
321 | |
322 BasicType basic_type_for_signature_at(int which); | |
323 | |
324 // Resolve string constants (to prevent allocation during compilation) | |
325 void resolve_string_constants(TRAPS) { | |
326 constantPoolHandle h_this(THREAD, this); | |
327 resolve_string_constants_impl(h_this, CHECK); | |
328 } | |
329 | |
330 // Klass name matches name at offset | |
331 bool klass_name_at_matches(instanceKlassHandle k, int which); | |
332 | |
333 // Sizing | |
113
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334 int length() const { return _length; } |
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335 void set_length(int length) { _length = length; } |
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336 |
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337 // Tells whether index is within bounds. |
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338 bool is_within_bounds(int index) const { |
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339 return 0 <= index && index < length(); |
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340 } |
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341 |
0 | 342 static int header_size() { return sizeof(constantPoolOopDesc)/HeapWordSize; } |
343 static int object_size(int length) { return align_object_size(header_size() + length); } | |
344 int object_size() { return object_size(length()); } | |
345 | |
346 friend class constantPoolKlass; | |
347 friend class ClassFileParser; | |
348 friend class SystemDictionary; | |
349 | |
350 // Used by compiler to prevent classloading. | |
351 static klassOop klass_at_if_loaded (constantPoolHandle this_oop, int which); | |
352 static klassOop klass_ref_at_if_loaded (constantPoolHandle this_oop, int which); | |
353 // Same as above - but does LinkResolving. | |
354 static klassOop klass_ref_at_if_loaded_check(constantPoolHandle this_oop, int which, TRAPS); | |
355 | |
356 // Routines currently used for annotations (only called by jvm.cpp) but which might be used in the | |
357 // future by other Java code. These take constant pool indices rather than possibly-byte-swapped | |
358 // constant pool cache indices as do the peer methods above. | |
359 symbolOop uncached_name_ref_at(int which); | |
360 symbolOop uncached_signature_ref_at(int which); | |
361 int uncached_klass_ref_index_at(int which); | |
362 int uncached_name_and_type_ref_index_at(int which); | |
363 | |
364 // Sharing | |
365 int pre_resolve_shared_klasses(TRAPS); | |
366 void shared_symbols_iterate(OopClosure* closure0); | |
367 void shared_tags_iterate(OopClosure* closure0); | |
368 void shared_strings_iterate(OopClosure* closure0); | |
369 | |
370 // Debugging | |
371 const char* printable_name_at(int which) PRODUCT_RETURN0; | |
372 | |
373 private: | |
374 | |
375 // Takes either a constant pool cache index in possibly byte-swapped | |
376 // byte order (which comes from the bytecodes after rewriting) or, | |
377 // if "uncached" is true, a vanilla constant pool index | |
378 jint field_or_method_at(int which, bool uncached) { | |
379 int i = -1; | |
380 if (uncached || cache() == NULL) { | |
381 i = which; | |
382 } else { | |
383 // change byte-ordering and go via cache | |
384 i = cache()->entry_at(Bytes::swap_u2(which))->constant_pool_index(); | |
385 } | |
386 assert(tag_at(i).is_field_or_method(), "Corrupted constant pool"); | |
387 return *int_at_addr(i); | |
388 } | |
389 | |
390 // Used while constructing constant pool (only by ClassFileParser) | |
391 jint klass_index_at(int which) { | |
392 assert(tag_at(which).is_klass_index(), "Corrupted constant pool"); | |
393 return *int_at_addr(which); | |
394 } | |
395 | |
396 jint string_index_at(int which) { | |
397 assert(tag_at(which).is_string_index(), "Corrupted constant pool"); | |
398 return *int_at_addr(which); | |
399 } | |
400 | |
401 // Performs the LinkResolver checks | |
402 static void verify_constant_pool_resolve(constantPoolHandle this_oop, KlassHandle klass, TRAPS); | |
403 | |
404 // Implementation of methods that needs an exposed 'this' pointer, in order to | |
405 // handle GC while executing the method | |
406 static klassOop klass_at_impl(constantPoolHandle this_oop, int which, TRAPS); | |
407 static oop string_at_impl(constantPoolHandle this_oop, int which, TRAPS); | |
408 | |
409 // Resolve string constants (to prevent allocation during compilation) | |
410 static void resolve_string_constants_impl(constantPoolHandle this_oop, TRAPS); | |
411 | |
412 public: | |
413 // Merging constantPoolOop support: | |
414 bool compare_entry_to(int index1, constantPoolHandle cp2, int index2, TRAPS); | |
415 void copy_cp_to(int start_i, int end_i, constantPoolHandle to_cp, int to_i, | |
416 TRAPS); | |
417 void copy_entry_to(int from_i, constantPoolHandle to_cp, int to_i, TRAPS); | |
418 int find_matching_entry(int pattern_i, constantPoolHandle search_cp, TRAPS); | |
419 int orig_length() const { return _orig_length; } | |
420 void set_orig_length(int orig_length) { _orig_length = orig_length; } | |
421 | |
422 | |
423 // JVMTI accesss - GetConstantPool, RetransformClasses, ... | |
424 friend class JvmtiConstantPoolReconstituter; | |
425 | |
426 private: | |
427 jint cpool_entry_size(jint idx); | |
428 jint hash_entries_to(SymbolHashMap *symmap, SymbolHashMap *classmap); | |
429 | |
430 // Copy cpool bytes into byte array. | |
431 // Returns: | |
432 // int > 0, count of the raw cpool bytes that have been copied | |
433 // 0, OutOfMemory error | |
434 // -1, Internal error | |
435 int copy_cpool_bytes(int cpool_size, | |
436 SymbolHashMap* tbl, | |
437 unsigned char *bytes); | |
438 }; | |
439 | |
440 class SymbolHashMapEntry : public CHeapObj { | |
441 private: | |
442 unsigned int _hash; // 32-bit hash for item | |
443 SymbolHashMapEntry* _next; // Next element in the linked list for this bucket | |
444 symbolOop _symbol; // 1-st part of the mapping: symbol => value | |
445 u2 _value; // 2-nd part of the mapping: symbol => value | |
446 | |
447 public: | |
448 unsigned int hash() const { return _hash; } | |
449 void set_hash(unsigned int hash) { _hash = hash; } | |
450 | |
451 SymbolHashMapEntry* next() const { return _next; } | |
452 void set_next(SymbolHashMapEntry* next) { _next = next; } | |
453 | |
454 symbolOop symbol() const { return _symbol; } | |
455 void set_symbol(symbolOop sym) { _symbol = sym; } | |
456 | |
457 u2 value() const { return _value; } | |
458 void set_value(u2 value) { _value = value; } | |
459 | |
460 SymbolHashMapEntry(unsigned int hash, symbolOop symbol, u2 value) | |
461 : _hash(hash), _symbol(symbol), _value(value), _next(NULL) {} | |
462 | |
463 }; // End SymbolHashMapEntry class | |
464 | |
465 | |
466 class SymbolHashMapBucket : public CHeapObj { | |
467 | |
468 private: | |
469 SymbolHashMapEntry* _entry; | |
470 | |
471 public: | |
472 SymbolHashMapEntry* entry() const { return _entry; } | |
473 void set_entry(SymbolHashMapEntry* entry) { _entry = entry; } | |
474 void clear() { _entry = NULL; } | |
475 | |
476 }; // End SymbolHashMapBucket class | |
477 | |
478 | |
479 class SymbolHashMap: public CHeapObj { | |
480 | |
481 private: | |
482 // Default number of entries in the table | |
483 enum SymbolHashMap_Constants { | |
484 _Def_HashMap_Size = 256 | |
485 }; | |
486 | |
487 int _table_size; | |
488 SymbolHashMapBucket* _buckets; | |
489 | |
490 void initialize_table(int table_size) { | |
491 _table_size = table_size; | |
492 _buckets = NEW_C_HEAP_ARRAY(SymbolHashMapBucket, table_size); | |
493 for (int index = 0; index < table_size; index++) { | |
494 _buckets[index].clear(); | |
495 } | |
496 } | |
497 | |
498 public: | |
499 | |
500 int table_size() const { return _table_size; } | |
501 | |
502 SymbolHashMap() { initialize_table(_Def_HashMap_Size); } | |
503 SymbolHashMap(int table_size) { initialize_table(table_size); } | |
504 | |
505 // hash P(31) from Kernighan & Ritchie | |
506 static unsigned int compute_hash(const char* str, int len) { | |
507 unsigned int hash = 0; | |
508 while (len-- > 0) { | |
509 hash = 31*hash + (unsigned) *str; | |
510 str++; | |
511 } | |
512 return hash; | |
513 } | |
514 | |
515 SymbolHashMapEntry* bucket(int i) { | |
516 return _buckets[i].entry(); | |
517 } | |
518 | |
519 void add_entry(symbolOop sym, u2 value); | |
520 SymbolHashMapEntry* find_entry(symbolOop sym); | |
521 | |
522 u2 symbol_to_value(symbolOop sym) { | |
523 SymbolHashMapEntry *entry = find_entry(sym); | |
524 return (entry == NULL) ? 0 : entry->value(); | |
525 } | |
526 | |
527 ~SymbolHashMap() { | |
528 SymbolHashMapEntry* next; | |
529 for (int i = 0; i < _table_size; i++) { | |
530 for (SymbolHashMapEntry* cur = bucket(i); cur != NULL; cur = next) { | |
531 next = cur->next(); | |
532 delete(cur); | |
533 } | |
534 } | |
535 delete _buckets; | |
536 } | |
537 }; // End SymbolHashMap class |