/* m2-tree.h create language specific tree nodes for Modula-2.

Copyright (C) 2001-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius@glam.ac.uk>.

This file is part of GNU Modula-2.

GNU Modula-2 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.

GNU Modula-2 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 GNU Modula-2; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

#ifndef GCC_GM2_TREE_H
#define GCC_GM2_TREE_H

#include "ggc.h"
#include "function.h"
#include "hashtab.h"
#include "vec.h"

/* These macros provide convenient access to the various statement nodes.  */

#define TRY_STMTS(NODE)		TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
#define TRY_HANDLERS(NODE)	TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)

/* Nonzero if this try block is a function try block.  */
#define FN_TRY_BLOCK_P(NODE)	TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
#define HANDLER_PARMS(NODE)	TREE_OPERAND (HANDLER_CHECK (NODE), 0)
#define HANDLER_BODY(NODE)	TREE_OPERAND (HANDLER_CHECK (NODE), 1)
#define HANDLER_TYPE(NODE)	TREE_TYPE (HANDLER_CHECK (NODE))

/* STMT_EXPR accessor.  */
#define STMT_EXPR_STMT(NODE)	TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)

/* EXPR_STMT accessor.  This gives the expression associated with an
   expression statement.  */
#define EXPR_STMT_EXPR(NODE)	TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)

#endif