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/*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2001 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include "syntax-tree.h"
/* Keep track of sttype_t's via their sttype_id_t number */
static sttype_t* type_list[STTYPE_NUM_TYPES];
#define STNODE_MAGIC 0xe9b00b9e
void
sttype_init(void)
{
sttype_register_function();
sttype_register_integer();
sttype_register_pointer();
sttype_register_range();
sttype_register_set();
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;
node->deprecated_token = NULL;
node->inside_brackets = FALSE;
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_set_bracket(stnode_t *node, gboolean bracket)
{
node->inside_brackets = bracket;
}
stnode_t*
stnode_dup(const stnode_t *org)
{
sttype_t *type;
stnode_t *node;
if (!org)
return NULL;
type = org->type;
node = g_new(stnode_t, 1);
node->magic = STNODE_MAGIC;
node->deprecated_token = NULL;
node->type = type;
if (type && type->func_dup)
node->data = type->func_dup(org->data);
else
node->data = org->data;
node->value = org->value;
node->inside_brackets = org->inside_brackets;
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;
}
gpointer
stnode_steal_data(stnode_t *node)
{
assert_magic(node, STNODE_MAGIC);
gpointer data = node->data;
g_assert(data);
node->data = NULL;
return data;
}
gint32
stnode_value(stnode_t *node)
{
assert_magic(node, STNODE_MAGIC);
return node->value;
}
const char *
stnode_deprecated(stnode_t *node)
{
if (!node) {
return NULL;
}
return node->deprecated_token;
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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