Mercurial > hg > graal-jvmci-8
diff src/share/vm/ci/ciExceptionHandler.hpp @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/ci/ciExceptionHandler.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,75 @@ +/* + * Copyright 1999-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// ciExceptionHandler +// +// This class represents an exception handler for a method. +class ciExceptionHandler : public ResourceObj { +private: + friend class ciMethod; + + // The loader to be used for resolving the exception + // klass. + ciInstanceKlass* _loading_klass; + + // Handler data. + int _start; + int _limit; + int _handler_bci; + int _catch_klass_index; + + // The exception klass that this handler catches. + ciInstanceKlass* _catch_klass; + +public: + ciExceptionHandler(ciInstanceKlass* loading_klass, + int start, int limit, + int handler_bci, int klass_index) { + _loading_klass = loading_klass; + _start = start; + _limit = limit; + _handler_bci = handler_bci; + _catch_klass_index = klass_index; + _catch_klass = NULL; + } + + int start() { return _start; } + int limit() { return _limit; } + int handler_bci() { return _handler_bci; } + int catch_klass_index() { return _catch_klass_index; } + + // Get the exception klass that this handler catches. + ciInstanceKlass* catch_klass(); + + bool is_catch_all() { return catch_klass_index() == 0; } + bool is_in_range(int bci) { + return start() <= bci && bci < limit(); + } + bool catches(ciInstanceKlass *exc) { + return is_catch_all() || exc->is_subtype_of(catch_klass()); + } + bool is_rethrow() { return handler_bci() == -1; } + + void print(); +};