aoqi@0: /*
aoqi@0:  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef SHARE_VM_CI_CIEXCEPTIONHANDLER_HPP
aoqi@0: #define SHARE_VM_CI_CIEXCEPTIONHANDLER_HPP
aoqi@0: 
aoqi@0: #include "ci/ciClassList.hpp"
aoqi@0: #include "ci/ciInstanceKlass.hpp"
aoqi@0: 
aoqi@0: // ciExceptionHandler
aoqi@0: //
aoqi@0: // This class represents an exception handler for a method.
aoqi@0: class ciExceptionHandler : public ResourceObj {
aoqi@0: private:
aoqi@0:   friend class ciMethod;
aoqi@0: 
aoqi@0:   // The loader to be used for resolving the exception
aoqi@0:   // klass.
aoqi@0:   ciInstanceKlass* _loading_klass;
aoqi@0: 
aoqi@0:   // Handler data.
aoqi@0:   int _start;
aoqi@0:   int _limit;
aoqi@0:   int _handler_bci;
aoqi@0:   int _catch_klass_index;
aoqi@0: 
aoqi@0:   // The exception klass that this handler catches.
aoqi@0:   ciInstanceKlass* _catch_klass;
aoqi@0: 
aoqi@0: public:
aoqi@0:   ciExceptionHandler(ciInstanceKlass* loading_klass,
aoqi@0:                      int start, int limit,
aoqi@0:                      int handler_bci, int klass_index) {
aoqi@0:     _loading_klass = loading_klass;
aoqi@0:     _start  = start;
aoqi@0:     _limit  = limit;
aoqi@0:     _handler_bci = handler_bci;
aoqi@0:     _catch_klass_index = klass_index;
aoqi@0:     _catch_klass = NULL;
aoqi@0:   }
aoqi@0: 
aoqi@0:   int       start()             { return _start; }
aoqi@0:   int       limit()             { return _limit; }
aoqi@0:   int       handler_bci()       { return _handler_bci; }
aoqi@0:   int       catch_klass_index() { return _catch_klass_index; }
aoqi@0: 
aoqi@0:   // Get the exception klass that this handler catches.
aoqi@0:   ciInstanceKlass* catch_klass();
aoqi@0: 
aoqi@0:   bool      is_catch_all() { return catch_klass_index() == 0; }
aoqi@0:   bool      is_in_range(int bci) {
aoqi@0:     return start() <= bci && bci < limit();
aoqi@0:   }
aoqi@0:   bool      catches(ciInstanceKlass *exc) {
aoqi@0:     return is_catch_all() || exc->is_subtype_of(catch_klass());
aoqi@0:   }
aoqi@0:   bool      is_rethrow() { return handler_bci() == -1; }
aoqi@0: 
aoqi@0:   void      print();
aoqi@0: };
aoqi@0: 
aoqi@0: #endif // SHARE_VM_CI_CIEXCEPTIONHANDLER_HPP