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/**
* @file NCDObject.c
* @author Ambroz Bizjak <ambrop7@gmail.com>
*
* @section LICENSE
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <misc/offset.h>
#include <misc/debug.h>
#include <ncd/NCDVal.h>
#include "NCDObject.h"
int NCDObject_no_getvar (const NCDObject *obj, NCD_string_id_t name, NCDValMem *mem, NCDValRef *out_value)
{
return 0;
}
int NCDObject_no_getobj (const NCDObject *obj, NCD_string_id_t name, NCDObject *out_object)
{
return 0;
}
NCDObject NCDObject_Build (NCD_string_id_t type, void *data_ptr, NCDObject_func_getvar func_getvar, NCDObject_func_getobj func_getobj)
{
ASSERT(type >= -1)
ASSERT(func_getvar)
ASSERT(func_getobj)
NCDObject obj;
obj.type = type;
obj.data_int = 0;
obj.data_ptr = data_ptr;
obj.method_user = data_ptr;
obj.func_getvar = func_getvar;
obj.func_getobj = func_getobj;
obj.pobj = NULL;
return obj;
}
NCDObject NCDObject_BuildFull (NCD_string_id_t type, void *data_ptr, int data_int, void *method_user, NCDObject_func_getvar func_getvar, NCDObject_func_getobj func_getobj, NCDPersistentObj *pobj)
{
ASSERT(type >= -1)
ASSERT(func_getvar)
ASSERT(func_getobj)
NCDObject obj;
obj.type = type;
obj.data_int = data_int;
obj.data_ptr = data_ptr;
obj.method_user = method_user;
obj.func_getvar = func_getvar;
obj.func_getobj = func_getobj;
obj.pobj = pobj;
return obj;
}
NCD_string_id_t NCDObject_Type (const NCDObject *o)
{
return o->type;
}
void * NCDObject_DataPtr (const NCDObject *o)
{
return o->data_ptr;
}
int NCDObject_DataInt (const NCDObject *o)
{
return o->data_int;
}
void * NCDObject_MethodUser (const NCDObject *o)
{
return o->method_user;
}
int NCDObject_GetVar (const NCDObject *o, NCD_string_id_t name, NCDValMem *mem, NCDValRef *out_value)
{
ASSERT(name >= 0)
ASSERT(mem)
ASSERT(out_value)
int res = o->func_getvar(o, name, mem, out_value);
ASSERT(res == 0 || res == 1)
ASSERT(res == 0 || (NCDVal_Assert(*out_value), 1))
return res;
}
int NCDObject_GetObj (const NCDObject *o, NCD_string_id_t name, NCDObject *out_object)
{
ASSERT(name >= 0)
ASSERT(out_object)
int res = o->func_getobj(o, name, out_object);
ASSERT(res == 0 || res == 1)
return res;
}
NCDPersistentObj * NCDObject_Pobj (const NCDObject *o)
{
return o->pobj;
}
static NCDObject NCDObject__dig_into_object (NCDObject object)
{
NCDObject obj2;
while (NCDObject_GetObj(&object, NCD_STRING_EMPTY, &obj2)) {
object = obj2;
}
return object;
}
int NCDObject_ResolveVarExprCompact (const NCDObject *o, const NCD_string_id_t *names, size_t num_names, NCDValMem *mem, NCDValRef *out_value)
{
ASSERT(num_names == 0 || names)
ASSERT(mem)
ASSERT(out_value)
NCDObject object = NCDObject__dig_into_object(*o);
while (num_names > 0) {
NCDObject obj2;
if (!NCDObject_GetObj(&object, *names, &obj2)) {
if (num_names == 1 && NCDObject_GetVar(&object, *names, mem, out_value)) {
return 1;
}
return 0;
}
object = NCDObject__dig_into_object(obj2);
names++;
num_names--;
}
return NCDObject_GetVar(&object, NCD_STRING_EMPTY, mem, out_value);
}
int NCDObject_ResolveObjExprCompact (const NCDObject *o, const NCD_string_id_t *names, size_t num_names, NCDObject *out_object)
{
ASSERT(num_names == 0 || names)
ASSERT(out_object)
NCDObject object = NCDObject__dig_into_object(*o);
while (num_names > 0) {
NCDObject obj2;
if (!NCDObject_GetObj(&object, *names, &obj2)) {
return 0;
}
object = NCDObject__dig_into_object(obj2);
names++;
num_names--;
}
*out_object = object;
return 1;
}
void NCDPersistentObj_Init (NCDPersistentObj *o, NCDPersistentObj_func_retobj func_retobj)
{
ASSERT(func_retobj)
o->func_retobj = func_retobj;
LinkedList0_Init(&o->refs_list);
}
void NCDPersistentObj_Free (NCDPersistentObj *o)
{
for (LinkedList0Node *ln = LinkedList0_GetFirst(&o->refs_list); ln; ln = LinkedList0Node_Next(ln)) {
NCDObjRef *ref = UPPER_OBJECT(ln, NCDObjRef, refs_list_node);
ASSERT(ref->pobj == o)
ref->pobj = NULL;
}
}
void NCDObjRef_Init (NCDObjRef *o, NCDPersistentObj *pobj)
{
o->pobj = pobj;
if (o->pobj) {
LinkedList0_Prepend(&o->pobj->refs_list, &o->refs_list_node);
}
}
void NCDObjRef_Free (NCDObjRef *o)
{
if (o->pobj) {
LinkedList0_Remove(&o->pobj->refs_list, &o->refs_list_node);
}
}
int NCDObjRef_Deref (NCDObjRef *o, NCDObject *res)
{
ASSERT(res)
if (!o->pobj) {
return 0;
}
*res = o->pobj->func_retobj(o->pobj);
return 1;
}