/* Oort
 * Copyright 2007, Soren Sandmann Pedersen
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "ast.h"

static void
do_levels (ast_t *ast, int level)
{
    GList *list;

    if (ast_is (ast, AST_DEFINITION, AST_FUNCTION_DEFINITION))
    {
	ast_function_definition_t *function = &ast->definition.function;

	function->level = level++;
    }
    else if (ast_is (ast, AST_DEFINITION, AST_CLASS_DEFINITION))
    {
	ast_class_definition_t *class = &ast->definition.class;

	class->level = level++;
    }
    else if (ast_is (ast, AST_DEFINITION, AST_LABEL_DEFINITION))
    {
	ast_label_definition_t *label = &ast->definition.label;

	label->level = level;
    }
    else if (ast_is (ast, AST_DEFINITION, AST_VARIABLE_DEFINITION))
    {
	ast_variable_definition_t *variable = &ast->definition.variable;

	variable->level = level;
    }
    else if (ast->common.type == AST_EXPRESSION)
    {
	ast_expression_t *expr = &ast->expression;

	expr->common.level = level;
    }
    
    for (list = ast->common.children->head; list; list = list->next)
	do_levels (list->data, level);
}

gboolean
levels (ast_t *ast)
{
    do_levels (ast, 0);
    
    return TRUE;
}