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/*
* $Id$
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 2001 Gerald Combs
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "syntax-tree.h"
/* Keep track of sttype_t's via their sttype_id_t number */
static sttype_t* type_list[STTYPE_NUM_TYPES];
/* These are the sttype_t registration function prototypes. */
void sttype_register_integer(void);
void sttype_register_pointer(void);
void sttype_register_range(void);
void sttype_register_string(void);
void sttype_register_test(void);
#define STNODE_MAGIC 0xe9b00b9e
void
sttype_init(void)
{
sttype_register_integer();
sttype_register_pointer();
sttype_register_range();
sttype_register_string();
sttype_register_test();
}
void
sttype_cleanup(void)
{
/* nothing to do */
}
void
sttype_register(sttype_t *type)
{
sttype_id_t type_id;
type_id = type->id;
/* Check input */
g_assert(type_id < STTYPE_NUM_TYPES);
/* Don't re-register. */
g_assert(type_list[type_id] == NULL);
type_list[type_id] = type;
}
static sttype_t*
sttype_lookup(sttype_id_t type_id)
{
sttype_t *result;
/* Check input */
g_assert(type_id < STTYPE_NUM_TYPES);
result = type_list[type_id];
/* Check output. */
g_assert(result != NULL);
return result;
}
stnode_t*
stnode_new(sttype_id_t type_id, gpointer data)
{
sttype_t *type;
stnode_t *node;
node = g_new(stnode_t, 1);
node->magic = STNODE_MAGIC;
if (type_id == STTYPE_UNINITIALIZED) {
node->type = NULL;
node->data = NULL;
}
else {
type = sttype_lookup(type_id);
g_assert(type);
node->type = type;
if (type->func_new) {
node->data = type->func_new(data);
}
else {
node->data = data;
}
}
return node;
}
void
stnode_init(stnode_t *node, sttype_id_t type_id, gpointer data)
{
sttype_t *type;
assert_magic(node, STNODE_MAGIC);
g_assert(!node->type);
g_assert(!node->data);
type = sttype_lookup(type_id);
g_assert(type);
node->type = type;
if (type->func_new) {
node->data = type->func_new(data);
}
else {
node->data = data;
}
}
void
stnode_init_int(stnode_t *node, sttype_id_t type_id, gint32 value)
{
stnode_init(node, type_id, NULL);
node->value = value;
}
void
stnode_free(stnode_t *node)
{
assert_magic(node, STNODE_MAGIC);
if (node->type) {
if (node->type->func_free) {
node->type->func_free(node->data);
}
}
else {
g_assert(!node->data);
}
g_free(node);
}
const char*
stnode_type_name(stnode_t *node)
{
assert_magic(node, STNODE_MAGIC);
if (node->type)
return node->type->name;
else
return "UNINITIALIZED";
}
sttype_id_t
stnode_type_id(stnode_t *node)
{
assert_magic(node, STNODE_MAGIC);
if (node->type)
return node->type->id;
else
return STTYPE_UNINITIALIZED;
}
gpointer
stnode_data(stnode_t *node)
{
assert_magic(node, STNODE_MAGIC);
return node->data;
}
gint32
stnode_value(stnode_t *node)
{
assert_magic(node, STNODE_MAGIC);
return node->value;
}
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