69 lines
2.4 KiB
C
69 lines
2.4 KiB
C
/* Definitions for exception handling for use by the GNU compiler
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for the Java(TM) language compiler.
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Copyright (C) 1997, 1998, 1999, 2000, 2003, 2004, 2005, 2007
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Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>.
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Java and all Java-based marks are trademarks or registered trademarks
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of Sun Microsystems, Inc. in the United States and other countries.
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The Free Software Foundation is independent of Sun Microsystems, Inc. */
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struct eh_range
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{
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/* The (byte-code PC) range of the handled block. */
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int start_pc;
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int end_pc;
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/* A list of handlers. For each element in the list,
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the TREE_PURPOSE is the handled class (NULL_EXPR for a finally block),
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and the TREE_VALUE is the LABEL_DECL of the handler. */
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tree handlers;
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/* Surrounding handler, if any. */
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struct eh_range *outer;
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/* The first child range. It is is nested inside this range
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(i.e. this.start_pc <= first_child.end_pc
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&& this.end_pc >= first_child.end_pc).
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The children are linked together using next_sibling, and are sorted
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by increasing start_pc and end_pc (we do not support non-nested
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overlapping ranges). */
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struct eh_range *first_child;
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/* The next child of outer, in address order. */
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struct eh_range *next_sibling;
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/* True if this range has already been expanded. */
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int expanded;
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/* The TRY_CATCH_EXPR for this EH range. */
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tree stmt;
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};
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/* A dummy range that represents the entire method. */
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extern struct eh_range whole_range;
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#define NULL_EH_RANGE (&whole_range)
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extern struct eh_range * find_handler (int);
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extern void method_init_exceptions (void);
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extern void maybe_start_try (int, int);
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extern void add_handler (int, int, tree, tree);
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extern void expand_end_java_handler (struct eh_range *);
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extern bool sanity_check_exception_range (struct eh_range *);
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