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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/java/java-except.h
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+/* Definitions for exception handling for use by the GNU compiler
+ for the Java(TM) language compiler.
+ Copyright (C) 1997, 1998, 1999, 2000, 2003, 2004, 2005, 2007
+ 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 *);