Sat, 01 Dec 2007 00:00:00 +0000
Initial load
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 1999-2005 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | // ciExceptionHandler |
duke@435 | 26 | // |
duke@435 | 27 | // This class represents an exception handler for a method. |
duke@435 | 28 | class ciExceptionHandler : public ResourceObj { |
duke@435 | 29 | private: |
duke@435 | 30 | friend class ciMethod; |
duke@435 | 31 | |
duke@435 | 32 | // The loader to be used for resolving the exception |
duke@435 | 33 | // klass. |
duke@435 | 34 | ciInstanceKlass* _loading_klass; |
duke@435 | 35 | |
duke@435 | 36 | // Handler data. |
duke@435 | 37 | int _start; |
duke@435 | 38 | int _limit; |
duke@435 | 39 | int _handler_bci; |
duke@435 | 40 | int _catch_klass_index; |
duke@435 | 41 | |
duke@435 | 42 | // The exception klass that this handler catches. |
duke@435 | 43 | ciInstanceKlass* _catch_klass; |
duke@435 | 44 | |
duke@435 | 45 | public: |
duke@435 | 46 | ciExceptionHandler(ciInstanceKlass* loading_klass, |
duke@435 | 47 | int start, int limit, |
duke@435 | 48 | int handler_bci, int klass_index) { |
duke@435 | 49 | _loading_klass = loading_klass; |
duke@435 | 50 | _start = start; |
duke@435 | 51 | _limit = limit; |
duke@435 | 52 | _handler_bci = handler_bci; |
duke@435 | 53 | _catch_klass_index = klass_index; |
duke@435 | 54 | _catch_klass = NULL; |
duke@435 | 55 | } |
duke@435 | 56 | |
duke@435 | 57 | int start() { return _start; } |
duke@435 | 58 | int limit() { return _limit; } |
duke@435 | 59 | int handler_bci() { return _handler_bci; } |
duke@435 | 60 | int catch_klass_index() { return _catch_klass_index; } |
duke@435 | 61 | |
duke@435 | 62 | // Get the exception klass that this handler catches. |
duke@435 | 63 | ciInstanceKlass* catch_klass(); |
duke@435 | 64 | |
duke@435 | 65 | bool is_catch_all() { return catch_klass_index() == 0; } |
duke@435 | 66 | bool is_in_range(int bci) { |
duke@435 | 67 | return start() <= bci && bci < limit(); |
duke@435 | 68 | } |
duke@435 | 69 | bool catches(ciInstanceKlass *exc) { |
duke@435 | 70 | return is_catch_all() || exc->is_subtype_of(catch_klass()); |
duke@435 | 71 | } |
duke@435 | 72 | bool is_rethrow() { return handler_bci() == -1; } |
duke@435 | 73 | |
duke@435 | 74 | void print(); |
duke@435 | 75 | }; |