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#include <fitz.h>
extern void fz_droparray(fz_obj *array);
extern void fz_dropdict(fz_obj *dict);
#define NEWOBJ(KIND,SIZE) \
fz_obj *o; \
o = *op = fz_malloc(SIZE); \
if (!o) return fz_outofmem; \
o->refs = 1; \
o->kind = KIND; \
fz_error *
fz_newnull(fz_obj **op)
{
NEWOBJ(FZ_NULL, sizeof (fz_obj));
return nil;
}
fz_error *
fz_newbool(fz_obj **op, int b)
{
NEWOBJ(FZ_BOOL, sizeof (fz_obj));
o->u.b = b;
return nil;
}
fz_error *
fz_newint(fz_obj **op, int i)
{
NEWOBJ(FZ_INT, sizeof (fz_obj));
o->u.i = i;
return nil;
}
fz_error *
fz_newreal(fz_obj **op, float f)
{
NEWOBJ(FZ_REAL, sizeof (fz_obj));
o->u.f = f;
return nil;
}
fz_error *
fz_newstring(fz_obj **op, char *str, int len)
{
NEWOBJ(FZ_STRING, offsetof(fz_obj, u.s.buf) + len);
o->u.s.len = len;
memcpy(o->u.s.buf, str, len);
return nil;
}
fz_error *
fz_newname(fz_obj **op, char *str)
{
NEWOBJ(FZ_NAME, offsetof(fz_obj, u.n) + strlen(str) + 1);
strcpy(o->u.n, str);
return nil;
}
fz_error *
fz_newindirect(fz_obj **op, int objid, int genid)
{
NEWOBJ(FZ_INDIRECT, sizeof (fz_obj));
o->u.r.oid = objid;
o->u.r.gid = genid;
return nil;
}
fz_error *
fz_newpointer(fz_obj **op, void *p)
{
NEWOBJ(FZ_POINTER, sizeof (fz_obj));
o->u.p = p;
return nil;
}
fz_obj *
fz_keepobj(fz_obj *o)
{
o->refs ++;
return o;
}
void
fz_dropobj(fz_obj *o)
{
if (--o->refs == 0)
{
if (o->kind == FZ_ARRAY)
fz_droparray(o);
else if (o->kind == FZ_DICT)
fz_dropdict(o);
else
fz_free(o);
}
}
int
fz_isnull(fz_obj *obj)
{
return obj ? obj->kind == FZ_NULL : 0;
}
int
fz_isbool(fz_obj *obj)
{
return obj ? obj->kind == FZ_BOOL : 0;
}
int
fz_isint(fz_obj *obj)
{
return obj ? obj->kind == FZ_INT : 0;
}
int
fz_isreal(fz_obj *obj)
{
return obj ? obj->kind == FZ_REAL : 0;
}
int
fz_isstring(fz_obj *obj)
{
return obj ? obj->kind == FZ_STRING : 0;
}
int
fz_isname(fz_obj *obj)
{
return obj ? obj->kind == FZ_NAME : 0;
}
int
fz_isarray(fz_obj *obj)
{
return obj ? obj->kind == FZ_ARRAY : 0;
}
int
fz_isdict(fz_obj *obj)
{
return obj ? obj->kind == FZ_DICT : 0;
}
int
fz_isindirect(fz_obj *obj)
{
return obj ? obj->kind == FZ_INDIRECT : 0;
}
int
fz_ispointer(fz_obj *obj)
{
return obj ? obj->kind == FZ_POINTER : 0;
}
int
fz_tobool(fz_obj *obj)
{
if (fz_isbool(obj))
return obj->u.b;
return 0;
}
int
fz_toint(fz_obj *obj)
{
if (fz_isint(obj))
return obj->u.i;
if (fz_isreal(obj))
return obj->u.f;
return 0;
}
float
fz_toreal(fz_obj *obj)
{
if (fz_isreal(obj))
return obj->u.f;
if (fz_isint(obj))
return obj->u.i;
return 0;
}
char *
fz_toname(fz_obj *obj)
{
if (fz_isname(obj))
return obj->u.n;
return "";
}
char *
fz_tostringbuf(fz_obj *obj)
{
if (fz_isstring(obj))
return obj->u.s.buf;
return "";
}
int
fz_tostringlen(fz_obj *obj)
{
if (fz_isstring(obj))
return obj->u.s.len;
return 0;
}
int
fz_tonum(fz_obj *obj)
{
if (fz_isindirect(obj))
return obj->u.r.oid;
return 0;
}
int
fz_togen(fz_obj *obj)
{
if (fz_isindirect(obj))
return obj->u.r.gid;
return 0;
}
void *
fz_topointer(fz_obj *obj)
{
if (fz_ispointer(obj))
return obj->u.p;
return nil;
}
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