| /* |
| * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP |
| #define SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP |
| |
| #include "oops/constantPool.hpp" |
| #include "utilities/hashtable.hpp" |
| |
| class ResolutionErrorEntry; |
| |
| // ResolutionError objects are used to record errors encountered during |
| // constant pool resolution (JVMS 5.4.3). |
| |
| class ResolutionErrorTable : public Hashtable<ConstantPool*, mtClass> { |
| |
| public: |
| ResolutionErrorTable(int table_size); |
| |
| ResolutionErrorEntry* new_entry(int hash, ConstantPool* pool, int cp_index, |
| Symbol* error, Symbol* message); |
| void free_entry(ResolutionErrorEntry *entry); |
| |
| ResolutionErrorEntry* bucket(int i) { |
| return (ResolutionErrorEntry*)Hashtable<ConstantPool*, mtClass>::bucket(i); |
| } |
| |
| ResolutionErrorEntry** bucket_addr(int i) { |
| return (ResolutionErrorEntry**)Hashtable<ConstantPool*, mtClass>::bucket_addr(i); |
| } |
| |
| void add_entry(int index, ResolutionErrorEntry* new_entry) { |
| Hashtable<ConstantPool*, mtClass>::add_entry(index, |
| (HashtableEntry<ConstantPool*, mtClass>*)new_entry); |
| } |
| |
| void add_entry(int index, unsigned int hash, |
| const constantPoolHandle& pool, int which, Symbol* error, Symbol* message); |
| |
| |
| // find error given the constant pool and constant pool index |
| ResolutionErrorEntry* find_entry(int index, unsigned int hash, |
| const constantPoolHandle& pool, int cp_index); |
| |
| |
| unsigned int compute_hash(const constantPoolHandle& pool, int cp_index) { |
| return (unsigned int) pool->identity_hash() + cp_index; |
| } |
| |
| // purges unloaded entries from the table |
| void purge_resolution_errors(); |
| |
| // RedefineClasses support - remove obsolete constant pool entry |
| void delete_entry(ConstantPool* c); |
| }; |
| |
| |
| class ResolutionErrorEntry : public HashtableEntry<ConstantPool*, mtClass> { |
| private: |
| int _cp_index; |
| Symbol* _error; |
| Symbol* _message; |
| |
| public: |
| ConstantPool* pool() const { return literal(); } |
| |
| int cp_index() const { return _cp_index; } |
| void set_cp_index(int cp_index) { _cp_index = cp_index; } |
| |
| Symbol* error() const { return _error; } |
| void set_error(Symbol* e); |
| |
| Symbol* message() const { return _message; } |
| void set_message(Symbol* c); |
| |
| ResolutionErrorEntry* next() const { |
| return (ResolutionErrorEntry*)HashtableEntry<ConstantPool*, mtClass>::next(); |
| } |
| |
| ResolutionErrorEntry** next_addr() { |
| return (ResolutionErrorEntry**)HashtableEntry<ConstantPool*, mtClass>::next_addr(); |
| } |
| }; |
| |
| #endif // SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP |