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/* Definitions for exception handling for use by the GNU compiler
for the Java(TM) language compiler.
Copyright (C) 1997-2015 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC 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 for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>.
Java and all Java-based marks are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries.
The Free Software Foundation is independent of Sun Microsystems, Inc. */
struct eh_range
{
/* The (byte-code PC) range of the handled block. */
int start_pc;
int end_pc;
/* A list of handlers. For each element in the list,
the TREE_PURPOSE is the handled class (NULL_EXPR for a finally block),
and the TREE_VALUE is the LABEL_DECL of the handler. */
tree handlers;
/* Surrounding handler, if any. */
struct eh_range *outer;
/* The first child range. It is is nested inside this range
(i.e. this.start_pc <= first_child.end_pc
&& this.end_pc >= first_child.end_pc).
The children are linked together using next_sibling, and are sorted
by increasing start_pc and end_pc (we do not support non-nested
overlapping ranges). */
struct eh_range *first_child;
/* The next child of outer, in address order. */
struct eh_range *next_sibling;
/* True if this range has already been expanded. */
int expanded;
/* The TRY_CATCH_EXPR for this EH range. */
tree stmt;
};
/* A dummy range that represents the entire method. */
extern struct eh_range whole_range;
#define NULL_EH_RANGE (&whole_range)
extern struct eh_range * find_handler (int);
extern void method_init_exceptions (void);
extern void maybe_start_try (int, int);
extern void add_handler (int, int, tree, tree);
extern void expand_end_java_handler (struct eh_range *);
extern bool sanity_check_exception_range (struct eh_range *);
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