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annotate src/share/vm/classfile/resolutionErrors.hpp @ 14517:3812c088b945
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date | Thu, 06 Mar 2014 10:37:26 -0800 |
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0 | 1 /* |
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2 * Copyright (c) 2005, 2012, Oracle and/or its affiliates. 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP |
26 #define SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP | |
27 | |
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28 #include "oops/constantPool.hpp" |
1972 | 29 #include "utilities/hashtable.hpp" |
30 | |
0 | 31 class ResolutionErrorEntry; |
32 | |
33 // ResolutionError objects are used to record errors encountered during | |
34 // constant pool resolution (JVMS 5.4.3). | |
35 | |
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36 class ResolutionErrorTable : public Hashtable<ConstantPool*, mtClass> { |
0 | 37 |
38 public: | |
39 ResolutionErrorTable(int table_size); | |
40 | |
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41 ResolutionErrorEntry* new_entry(int hash, ConstantPool* pool, int cp_index, Symbol* error); |
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42 void free_entry(ResolutionErrorEntry *entry); |
0 | 43 |
44 ResolutionErrorEntry* bucket(int i) { | |
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45 return (ResolutionErrorEntry*)Hashtable<ConstantPool*, mtClass>::bucket(i); |
0 | 46 } |
47 | |
48 ResolutionErrorEntry** bucket_addr(int i) { | |
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49 return (ResolutionErrorEntry**)Hashtable<ConstantPool*, mtClass>::bucket_addr(i); |
0 | 50 } |
51 | |
52 void add_entry(int index, ResolutionErrorEntry* new_entry) { | |
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53 Hashtable<ConstantPool*, mtClass>::add_entry(index, |
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54 (HashtableEntry<ConstantPool*, mtClass>*)new_entry); |
0 | 55 } |
56 | |
57 void add_entry(int index, unsigned int hash, | |
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58 constantPoolHandle pool, int which, Symbol* error); |
0 | 59 |
60 | |
61 // find error given the constant pool and constant pool index | |
62 ResolutionErrorEntry* find_entry(int index, unsigned int hash, | |
63 constantPoolHandle pool, int cp_index); | |
64 | |
65 | |
66 unsigned int compute_hash(constantPoolHandle pool, int cp_index) { | |
67 return (unsigned int) pool->identity_hash() + cp_index; | |
68 } | |
69 | |
70 // purges unloaded entries from the table | |
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71 void purge_resolution_errors(); |
0 | 72 |
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73 // RedefineClasses support - remove obsolete constant pool entry |
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74 void delete_entry(ConstantPool* c); |
0 | 75 }; |
76 | |
77 | |
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78 class ResolutionErrorEntry : public HashtableEntry<ConstantPool*, mtClass> { |
0 | 79 private: |
80 int _cp_index; | |
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81 Symbol* _error; |
0 | 82 |
83 public: | |
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84 ConstantPool* pool() const { return (ConstantPool*)literal(); } |
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85 ConstantPool** pool_addr() { return (ConstantPool**)literal_addr(); } |
0 | 86 |
87 int cp_index() const { return _cp_index; } | |
88 void set_cp_index(int cp_index) { _cp_index = cp_index; } | |
89 | |
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90 Symbol* error() const { return _error; } |
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91 void set_error(Symbol* e); |
0 | 92 |
93 ResolutionErrorEntry* next() const { | |
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94 return (ResolutionErrorEntry*)HashtableEntry<ConstantPool*, mtClass>::next(); |
0 | 95 } |
96 | |
97 ResolutionErrorEntry** next_addr() { | |
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98 return (ResolutionErrorEntry**)HashtableEntry<ConstantPool*, mtClass>::next_addr(); |
0 | 99 } |
100 }; | |
1972 | 101 |
102 #endif // SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP |