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src/share/vm/ci/ciExceptionHandler.hpp@4ce7240d622c (annotated)

src/share/vm/ci/ciExceptionHandler.hpp

Wed, 06 Jan 2010 14:22:39 -0800

author

never

date

Wed, 06 Jan 2010 14:22:39 -0800

changeset 1577

4ce7240d622c

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6914300: ciEnv should export all well known classes
Reviewed-by: kvn, twisti

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	};