2 see copyright notice in squirrel.h
4 #include "sqpcheader.h"
9 #include "sqfuncproto.h"
10 #include "sqclosure.h"
11 #include "squserdata.h"
12 #include "sqcompiler.h"
13 #include "sqfuncstate.h"
16 bool sq_aux_gettypedarg(HSQUIRRELVM v,SQInteger idx,SQObjectType type,SQObjectPtr **o)
18 *o = &stack_get(v,idx);
19 if(type(**o) != type){
20 SQObjectPtr oval = v->PrintObjVal(**o);
21 v->Raise_Error(_SC("wrong argument type, expected '%s' got '%.50s'"),IdType2Name(type),_stringval(oval));
27 #define _GETSAFE_OBJ(v,idx,type,o) { if(!sq_aux_gettypedarg(v,idx,type,&o)) return SQ_ERROR; }
29 #define sq_aux_paramscheck(v,count) \
31 if(sq_gettop(v) < count){ v->Raise_Error(_SC("not enough params in the stack")); return SQ_ERROR; }\
34 SQInteger sq_aux_throwobject(HSQUIRRELVM v,SQObjectPtr &e)
40 SQInteger sq_aux_invalidtype(HSQUIRRELVM v,SQObjectType type)
42 scsprintf(_ss(v)->GetScratchPad(100), _SC("unexpected type %s"), IdType2Name(type));
43 return sq_throwerror(v, _ss(v)->GetScratchPad(-1));
46 HSQUIRRELVM sq_open(SQInteger initialstacksize)
50 sq_new(ss, SQSharedState);
52 v = (SQVM *)SQ_MALLOC(sizeof(SQVM));
55 if(v->Init(NULL, initialstacksize)) {
64 HSQUIRRELVM sq_newthread(HSQUIRRELVM friendvm, SQInteger initialstacksize)
70 v= (SQVM *)SQ_MALLOC(sizeof(SQVM));
73 if(v->Init(friendvm, initialstacksize)) {
82 SQInteger sq_getvmstate(HSQUIRRELVM v)
85 return SQ_VMSTATE_SUSPENDED;
87 if(v->_callsstacksize != 0) return SQ_VMSTATE_RUNNING;
88 else return SQ_VMSTATE_IDLE;
92 void sq_seterrorhandler(HSQUIRRELVM v)
94 SQObject o = stack_get(v, -1);
95 if(sq_isclosure(o) || sq_isnativeclosure(o) || sq_isnull(o)) {
101 void sq_setdebughook(HSQUIRRELVM v)
103 SQObject o = stack_get(v,-1);
104 if(sq_isclosure(o) || sq_isnativeclosure(o) || sq_isnull(o)) {
110 void sq_close(HSQUIRRELVM v)
112 SQSharedState *ss = _ss(v);
113 _thread(ss->_root_vm)->Finalize();
114 sq_delete(ss, SQSharedState);
117 SQRESULT sq_compile(HSQUIRRELVM v,SQLEXREADFUNC read,SQUserPointer p,const SQChar *sourcename,SQBool raiseerror)
120 if(Compile(v, read, p, sourcename, o, raiseerror?true:false, _ss(v)->_debuginfo)) {
121 v->Push(SQClosure::Create(_ss(v), _funcproto(o)));
127 void sq_enabledebuginfo(HSQUIRRELVM v, SQBool enable)
129 _ss(v)->_debuginfo = enable?true:false;
132 void sq_notifyallexceptions(HSQUIRRELVM v, SQBool enable)
134 _ss(v)->_notifyallexceptions = enable?true:false;
137 void sq_addref(HSQUIRRELVM v,HSQOBJECT *po)
139 if(!ISREFCOUNTED(type(*po))) return;
140 #ifdef NO_GARBAGE_COLLECTOR
141 __AddRef(po->_type,po->_unVal);
143 _ss(v)->_refs_table.AddRef(*po);
147 SQBool sq_release(HSQUIRRELVM v,HSQOBJECT *po)
149 if(!ISREFCOUNTED(type(*po))) return SQTrue;
150 #ifdef NO_GARBAGE_COLLECTOR
151 __Release(po->_type,po->_unVal);
152 return SQFalse; //the ret val doesn't work(and cannot be fixed)
154 return _ss(v)->_refs_table.Release(*po);
158 const SQChar *sq_objtostring(HSQOBJECT *o)
160 if(sq_type(*o) == OT_STRING) {
161 return _stringval(*o);
166 SQInteger sq_objtointeger(HSQOBJECT *o)
168 if(sq_isnumeric(*o)) {
169 return tointeger(*o);
174 SQFloat sq_objtofloat(HSQOBJECT *o)
176 if(sq_isnumeric(*o)) {
182 SQBool sq_objtobool(HSQOBJECT *o)
190 void sq_pushnull(HSQUIRRELVM v)
195 void sq_pushstring(HSQUIRRELVM v,const SQChar *s,SQInteger len)
198 v->Push(SQObjectPtr(SQString::Create(_ss(v), s, len)));
199 else v->Push(_null_);
202 void sq_pushinteger(HSQUIRRELVM v,SQInteger n)
207 void sq_pushbool(HSQUIRRELVM v,SQBool b)
209 v->Push(b?true:false);
212 void sq_pushfloat(HSQUIRRELVM v,SQFloat n)
217 void sq_pushuserpointer(HSQUIRRELVM v,SQUserPointer p)
222 SQUserPointer sq_newuserdata(HSQUIRRELVM v,SQUnsignedInteger size)
224 SQUserData *ud = SQUserData::Create(_ss(v), size);
229 void sq_newtable(HSQUIRRELVM v)
231 v->Push(SQTable::Create(_ss(v), 0));
234 void sq_newarray(HSQUIRRELVM v,SQInteger size)
236 v->Push(SQArray::Create(_ss(v), size));
239 SQRESULT sq_newclass(HSQUIRRELVM v,SQBool hasbase)
241 SQClass *baseclass = NULL;
243 SQObjectPtr &base = stack_get(v,-1);
244 if(type(base) != OT_CLASS)
245 return sq_throwerror(v,_SC("invalid base type"));
246 baseclass = _class(base);
248 SQClass *newclass = SQClass::Create(_ss(v), baseclass);
249 if(baseclass) v->Pop();
254 SQBool sq_instanceof(HSQUIRRELVM v)
256 SQObjectPtr &inst = stack_get(v,-1);
257 SQObjectPtr &cl = stack_get(v,-2);
258 if(type(inst) != OT_INSTANCE || type(cl) != OT_CLASS)
259 return sq_throwerror(v,_SC("invalid param type"));
260 return _instance(inst)->InstanceOf(_class(cl))?SQTrue:SQFalse;
263 SQRESULT sq_arrayappend(HSQUIRRELVM v,SQInteger idx)
265 sq_aux_paramscheck(v,2);
267 _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
268 _array(*arr)->Append(v->GetUp(-1));
273 SQRESULT sq_arraypop(HSQUIRRELVM v,SQInteger idx,SQBool pushval)
275 sq_aux_paramscheck(v, 1);
277 _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
278 if(_array(*arr)->Size() > 0) {
279 if(pushval != 0){ v->Push(_array(*arr)->Top()); }
283 return sq_throwerror(v, _SC("empty array"));
286 SQRESULT sq_arrayresize(HSQUIRRELVM v,SQInteger idx,SQInteger newsize)
288 sq_aux_paramscheck(v,1);
290 _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
292 _array(*arr)->Resize(newsize);
295 return sq_throwerror(v,_SC("negative size"));
299 SQRESULT sq_arrayreverse(HSQUIRRELVM v,SQInteger idx)
301 sq_aux_paramscheck(v, 1);
303 _GETSAFE_OBJ(v, idx, OT_ARRAY,o);
304 SQArray *arr = _array(*o);
305 if(arr->Size() > 0) {
307 SQInteger size = arr->Size();
308 SQInteger n = size >> 1; size -= 1;
309 for(SQInteger i = 0; i < n; i++) {
311 arr->_values[i] = arr->_values[size-i];
312 arr->_values[size-i] = t;
319 SQRESULT sq_arrayremove(HSQUIRRELVM v,SQInteger idx,SQInteger itemidx)
321 sq_aux_paramscheck(v, 1);
323 _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
324 return _array(*arr)->Remove(itemidx) ? SQ_OK : sq_throwerror(v,_SC("index out of range"));
327 SQRESULT sq_arrayinsert(HSQUIRRELVM v,SQInteger idx,SQInteger destpos)
329 sq_aux_paramscheck(v, 1);
331 _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
332 SQRESULT ret = _array(*arr)->Insert(destpos, v->GetUp(-1)) ? SQ_OK : sq_throwerror(v,_SC("index out of range"));
338 void sq_newclosure(HSQUIRRELVM v,SQFUNCTION func,SQUnsignedInteger nfreevars)
340 SQNativeClosure *nc = SQNativeClosure::Create(_ss(v), func);
341 nc->_nparamscheck = 0;
342 for(SQUnsignedInteger i = 0; i < nfreevars; i++) {
343 nc->_outervalues.push_back(v->Top());
346 v->Push(SQObjectPtr(nc));
349 SQRESULT sq_getclosureinfo(HSQUIRRELVM v,SQInteger idx,SQUnsignedInteger *nparams,SQUnsignedInteger *nfreevars)
351 SQObject o = stack_get(v, idx);
352 if(sq_isclosure(o)) {
353 SQClosure *c = _closure(o);
354 SQFunctionProto *proto = _funcproto(c->_function);
355 *nparams = (SQUnsignedInteger)proto->_nparameters;
356 *nfreevars = (SQUnsignedInteger)c->_outervalues.size();
359 return sq_throwerror(v,_SC("the object is not a closure"));
362 SQRESULT sq_setnativeclosurename(HSQUIRRELVM v,SQInteger idx,const SQChar *name)
364 SQObject o = stack_get(v, idx);
365 if(sq_isnativeclosure(o)) {
366 SQNativeClosure *nc = _nativeclosure(o);
367 nc->_name = SQString::Create(_ss(v),name);
370 return sq_throwerror(v,_SC("the object is not a nativeclosure"));
373 SQRESULT sq_setparamscheck(HSQUIRRELVM v,SQInteger nparamscheck,const SQChar *typemask)
375 SQObject o = stack_get(v, -1);
376 if(!sq_isnativeclosure(o))
377 return sq_throwerror(v, _SC("native closure expected"));
378 SQNativeClosure *nc = _nativeclosure(o);
379 nc->_nparamscheck = nparamscheck;
382 if(!CompileTypemask(res, typemask))
383 return sq_throwerror(v, _SC("invalid typemask"));
384 nc->_typecheck.copy(res);
387 nc->_typecheck.resize(0);
389 if(nparamscheck == SQ_MATCHTYPEMASKSTRING) {
390 nc->_nparamscheck = nc->_typecheck.size();
395 SQRESULT sq_bindenv(HSQUIRRELVM v,SQInteger idx)
397 SQObjectPtr &o = stack_get(v,idx);
398 if(!sq_isnativeclosure(o) &&
400 return sq_throwerror(v,_SC("the target is not a closure"));
401 SQObjectPtr &env = stack_get(v,-1);
402 if(!sq_istable(env) &&
405 return sq_throwerror(v,_SC("invalid environment"));
406 SQObjectPtr w = _refcounted(env)->GetWeakRef(type(env));
408 if(sq_isclosure(o)) {
409 SQClosure *c = _closure(o)->Clone();
413 else { //then must be a native closure
414 SQNativeClosure *c = _nativeclosure(o)->Clone();
423 SQRESULT sq_clear(HSQUIRRELVM v,SQInteger idx)
425 SQObject &o=stack_get(v,idx);
427 case OT_TABLE: _table(o)->Clear(); break;
428 case OT_ARRAY: _array(o)->Resize(0); break;
430 return sq_throwerror(v, _SC("clear only works on table and array"));
437 void sq_pushroottable(HSQUIRRELVM v)
439 v->Push(v->_roottable);
442 void sq_pushregistrytable(HSQUIRRELVM v)
444 v->Push(_ss(v)->_registry);
447 void sq_pushconsttable(HSQUIRRELVM v)
449 v->Push(_ss(v)->_consts);
452 SQRESULT sq_setroottable(HSQUIRRELVM v)
454 SQObject o = stack_get(v, -1);
455 if(sq_istable(o) || sq_isnull(o)) {
460 return sq_throwerror(v, _SC("ivalid type"));
463 SQRESULT sq_setconsttable(HSQUIRRELVM v)
465 SQObject o = stack_get(v, -1);
471 return sq_throwerror(v, _SC("ivalid type, expected table"));
474 void sq_setforeignptr(HSQUIRRELVM v,SQUserPointer p)
479 SQUserPointer sq_getforeignptr(HSQUIRRELVM v)
481 return v->_foreignptr;
484 void sq_push(HSQUIRRELVM v,SQInteger idx)
486 v->Push(stack_get(v, idx));
489 SQObjectType sq_gettype(HSQUIRRELVM v,SQInteger idx)
491 return type(stack_get(v, idx));
495 void sq_tostring(HSQUIRRELVM v,SQInteger idx)
497 SQObjectPtr &o = stack_get(v, idx);
503 void sq_tobool(HSQUIRRELVM v, SQInteger idx, SQBool *b)
505 SQObjectPtr &o = stack_get(v, idx);
506 *b = v->IsFalse(o)?SQFalse:SQTrue;
509 SQRESULT sq_getinteger(HSQUIRRELVM v,SQInteger idx,SQInteger *i)
511 SQObjectPtr &o = stack_get(v, idx);
512 if(sq_isnumeric(o)) {
519 SQRESULT sq_getfloat(HSQUIRRELVM v,SQInteger idx,SQFloat *f)
521 SQObjectPtr &o = stack_get(v, idx);
522 if(sq_isnumeric(o)) {
529 SQRESULT sq_getbool(HSQUIRRELVM v,SQInteger idx,SQBool *b)
531 SQObjectPtr &o = stack_get(v, idx);
539 SQRESULT sq_getstring(HSQUIRRELVM v,SQInteger idx,const SQChar **c)
541 SQObjectPtr *o = NULL;
542 _GETSAFE_OBJ(v, idx, OT_STRING,o);
547 SQRESULT sq_getthread(HSQUIRRELVM v,SQInteger idx,HSQUIRRELVM *thread)
549 SQObjectPtr *o = NULL;
550 _GETSAFE_OBJ(v, idx, OT_THREAD,o);
551 *thread = _thread(*o);
555 SQRESULT sq_clone(HSQUIRRELVM v,SQInteger idx)
557 SQObjectPtr &o = stack_get(v,idx);
559 if(!v->Clone(o, stack_get(v, -1))){
561 return sq_aux_invalidtype(v, type(o));
566 SQInteger sq_getsize(HSQUIRRELVM v, SQInteger idx)
568 SQObjectPtr &o = stack_get(v, idx);
569 SQObjectType type = type(o);
571 case OT_STRING: return _string(o)->_len;
572 case OT_TABLE: return _table(o)->CountUsed();
573 case OT_ARRAY: return _array(o)->Size();
574 case OT_USERDATA: return _userdata(o)->_size;
576 return sq_aux_invalidtype(v, type);
580 SQRESULT sq_getuserdata(HSQUIRRELVM v,SQInteger idx,SQUserPointer *p,SQUserPointer *typetag)
582 SQObjectPtr *o = NULL;
583 _GETSAFE_OBJ(v, idx, OT_USERDATA,o);
584 (*p) = _userdataval(*o);
585 if(typetag) *typetag = _userdata(*o)->_typetag;
589 SQRESULT sq_settypetag(HSQUIRRELVM v,SQInteger idx,SQUserPointer typetag)
591 SQObjectPtr &o = stack_get(v,idx);
593 case OT_USERDATA: _userdata(o)->_typetag = typetag; break;
594 case OT_CLASS: _class(o)->_typetag = typetag; break;
595 default: return sq_throwerror(v,_SC("invalid object type"));
600 SQRESULT sq_getobjtypetag(HSQOBJECT *o,SQUserPointer * typetag)
603 case OT_INSTANCE: *typetag = _instance(*o)->_class->_typetag; break;
604 case OT_USERDATA: *typetag = _userdata(*o)->_typetag; break;
605 case OT_CLASS: *typetag = _class(*o)->_typetag; break;
606 default: return SQ_ERROR;
611 SQRESULT sq_gettypetag(HSQUIRRELVM v,SQInteger idx,SQUserPointer *typetag)
613 SQObjectPtr &o = stack_get(v,idx);
614 if(SQ_FAILED(sq_getobjtypetag(&o,typetag)))
615 return sq_throwerror(v,_SC("invalid object type"));
619 SQRESULT sq_getuserpointer(HSQUIRRELVM v, SQInteger idx, SQUserPointer *p)
621 SQObjectPtr *o = NULL;
622 _GETSAFE_OBJ(v, idx, OT_USERPOINTER,o);
623 (*p) = _userpointer(*o);
627 SQRESULT sq_setinstanceup(HSQUIRRELVM v, SQInteger idx, SQUserPointer p)
629 SQObjectPtr &o = stack_get(v,idx);
630 if(type(o) != OT_INSTANCE) return sq_throwerror(v,_SC("the object is not a class instance"));
631 _instance(o)->_userpointer = p;
635 SQRESULT sq_setclassudsize(HSQUIRRELVM v, SQInteger idx, SQInteger udsize)
637 SQObjectPtr &o = stack_get(v,idx);
638 if(type(o) != OT_CLASS) return sq_throwerror(v,_SC("the object is not a class"));
639 if(_class(o)->_locked) return sq_throwerror(v,_SC("the class is locked"));
640 _class(o)->_udsize = udsize;
645 SQRESULT sq_getinstanceup(HSQUIRRELVM v, SQInteger idx, SQUserPointer *p,SQUserPointer typetag)
647 SQObjectPtr &o = stack_get(v,idx);
648 if(type(o) != OT_INSTANCE) return sq_throwerror(v,_SC("the object is not a class instance"));
649 (*p) = _instance(o)->_userpointer;
651 SQClass *cl = _instance(o)->_class;
653 if(cl->_typetag == typetag)
657 return sq_throwerror(v,_SC("invalid type tag"));
662 SQInteger sq_gettop(HSQUIRRELVM v)
664 return (v->_top) - v->_stackbase;
667 void sq_settop(HSQUIRRELVM v, SQInteger newtop)
669 SQInteger top = sq_gettop(v);
671 sq_pop(v, top - newtop);
673 while(top++ < newtop) sq_pushnull(v);
676 void sq_pop(HSQUIRRELVM v, SQInteger nelemstopop)
678 assert(v->_top >= nelemstopop);
682 void sq_poptop(HSQUIRRELVM v)
684 assert(v->_top >= 1);
689 void sq_remove(HSQUIRRELVM v, SQInteger idx)
694 SQInteger sq_cmp(HSQUIRRELVM v)
697 v->ObjCmp(stack_get(v, -1), stack_get(v, -2),res);
701 SQRESULT sq_newslot(HSQUIRRELVM v, SQInteger idx, SQBool bstatic)
703 sq_aux_paramscheck(v, 3);
704 SQObjectPtr &self = stack_get(v, idx);
705 if(type(self) == OT_TABLE || type(self) == OT_CLASS) {
706 SQObjectPtr &key = v->GetUp(-2);
707 if(type(key) == OT_NULL) return sq_throwerror(v, _SC("null is not a valid key"));
708 v->NewSlot(self, key, v->GetUp(-1),bstatic?true:false);
714 SQRESULT sq_deleteslot(HSQUIRRELVM v,SQInteger idx,SQBool pushval)
716 sq_aux_paramscheck(v, 2);
718 _GETSAFE_OBJ(v, idx, OT_TABLE,self);
719 SQObjectPtr &key = v->GetUp(-1);
720 if(type(key) == OT_NULL) return sq_throwerror(v, _SC("null is not a valid key"));
722 if(!v->DeleteSlot(*self, key, res)){
725 if(pushval) v->GetUp(-1) = res;
730 SQRESULT sq_set(HSQUIRRELVM v,SQInteger idx)
732 SQObjectPtr &self = stack_get(v, idx);
733 if(v->Set(self, v->GetUp(-2), v->GetUp(-1),false)) {
737 v->Raise_IdxError(v->GetUp(-2));return SQ_ERROR;
740 SQRESULT sq_rawset(HSQUIRRELVM v,SQInteger idx)
742 SQObjectPtr &self = stack_get(v, idx);
743 if(type(v->GetUp(-2)) == OT_NULL) return sq_throwerror(v, _SC("null key"));
746 _table(self)->NewSlot(v->GetUp(-2), v->GetUp(-1));
751 _class(self)->NewSlot(_ss(v), v->GetUp(-2), v->GetUp(-1),false);
756 if(_instance(self)->Set(v->GetUp(-2), v->GetUp(-1))) {
762 if(v->Set(self, v->GetUp(-2), v->GetUp(-1),false)) {
769 return sq_throwerror(v, _SC("rawset works only on array/table/class and instance"));
771 v->Raise_IdxError(v->GetUp(-2));return SQ_ERROR;
774 SQRESULT sq_setdelegate(HSQUIRRELVM v,SQInteger idx)
776 SQObjectPtr &self = stack_get(v, idx);
777 SQObjectPtr &mt = v->GetUp(-1);
778 SQObjectType type = type(self);
781 if(type(mt) == OT_TABLE) {
782 if(!_table(self)->SetDelegate(_table(mt))) return sq_throwerror(v, _SC("delagate cycle")); v->Pop();}
783 else if(type(mt)==OT_NULL) {
784 _table(self)->SetDelegate(NULL); v->Pop(); }
785 else return sq_aux_invalidtype(v,type);
788 if(type(mt)==OT_TABLE) {
789 _userdata(self)->SetDelegate(_table(mt)); v->Pop(); }
790 else if(type(mt)==OT_NULL) {
791 _userdata(self)->SetDelegate(NULL); v->Pop(); }
792 else return sq_aux_invalidtype(v, type);
795 return sq_aux_invalidtype(v, type);
801 SQRESULT sq_rawdeleteslot(HSQUIRRELVM v,SQInteger idx,SQBool pushval)
803 sq_aux_paramscheck(v, 2);
805 _GETSAFE_OBJ(v, idx, OT_TABLE,self);
806 SQObjectPtr &key = v->GetUp(-1);
808 if(_table(*self)->Get(key,t)) {
809 _table(*self)->Remove(key);
812 if(pushval) v->GetUp(-1) = t;
818 SQRESULT sq_getdelegate(HSQUIRRELVM v,SQInteger idx)
820 SQObjectPtr &self=stack_get(v,idx);
824 if(!_delegable(self)->_delegate){
828 v->Push(SQObjectPtr(_delegable(self)->_delegate));
830 default: return sq_throwerror(v,_SC("wrong type")); break;
836 SQRESULT sq_get(HSQUIRRELVM v,SQInteger idx)
838 SQObjectPtr &self=stack_get(v,idx);
839 if(v->Get(self,v->GetUp(-1),v->GetUp(-1),false,false))
842 return sq_throwerror(v,_SC("the index doesn't exist"));
845 SQRESULT sq_rawget(HSQUIRRELVM v,SQInteger idx)
847 SQObjectPtr &self=stack_get(v,idx);
850 if(_table(self)->Get(v->GetUp(-1),v->GetUp(-1)))
854 if(_class(self)->Get(v->GetUp(-1),v->GetUp(-1)))
858 if(_instance(self)->Get(v->GetUp(-1),v->GetUp(-1)))
862 if(v->Get(self,v->GetUp(-1),v->GetUp(-1),false,false))
867 return sq_throwerror(v,_SC("rawget works only on array/table/instance and class"));
870 return sq_throwerror(v,_SC("the index doesn't exist"));
873 SQRESULT sq_getstackobj(HSQUIRRELVM v,SQInteger idx,HSQOBJECT *po)
875 *po=stack_get(v,idx);
879 const SQChar *sq_getlocal(HSQUIRRELVM v,SQUnsignedInteger level,SQUnsignedInteger idx)
881 SQUnsignedInteger cstksize=v->_callsstacksize;
882 SQUnsignedInteger lvl=(cstksize-level)-1;
883 SQInteger stackbase=v->_stackbase;
885 for(SQUnsignedInteger i=0;i<level;i++){
886 SQVM::CallInfo &ci=v->_callsstack[(cstksize-i)-1];
887 stackbase-=ci._prevstkbase;
889 SQVM::CallInfo &ci=v->_callsstack[lvl];
890 if(type(ci._closure)!=OT_CLOSURE)
892 SQClosure *c=_closure(ci._closure);
893 SQFunctionProto *func=_funcproto(c->_function);
894 if(func->_noutervalues > (SQInteger)idx) {
895 v->Push(c->_outervalues[idx]);
896 return _stringval(func->_outervalues[idx]._name);
898 idx -= func->_noutervalues;
899 return func->GetLocal(v,stackbase,idx,(SQInteger)(ci._ip-func->_instructions)-1);
904 void sq_pushobject(HSQUIRRELVM v,HSQOBJECT obj)
906 v->Push(SQObjectPtr(obj));
909 void sq_resetobject(HSQOBJECT *po)
911 po->_unVal.pUserPointer=NULL;po->_type=OT_NULL;
914 SQRESULT sq_throwerror(HSQUIRRELVM v,const SQChar *err)
916 v->_lasterror=SQString::Create(_ss(v),err);
920 void sq_reseterror(HSQUIRRELVM v)
922 v->_lasterror = _null_;
925 void sq_getlasterror(HSQUIRRELVM v)
927 v->Push(v->_lasterror);
930 void sq_reservestack(HSQUIRRELVM v,SQInteger nsize)
932 if (((SQUnsignedInteger)v->_top + nsize) > v->_stack.size()) {
933 v->_stack.resize(v->_stack.size() + ((v->_top + nsize) - v->_stack.size()));
937 SQRESULT sq_resume(HSQUIRRELVM v,SQBool retval,SQBool raiseerror)
939 if(type(v->GetUp(-1))==OT_GENERATOR){
940 v->Push(_null_); //retval
941 if(!v->Execute(v->GetUp(-2),v->_top,0,v->_top,v->GetUp(-1),raiseerror,SQVM::ET_RESUME_GENERATOR))
942 {v->Raise_Error(v->_lasterror); return SQ_ERROR;}
947 return sq_throwerror(v,_SC("only generators can be resumed"));
950 SQRESULT sq_call(HSQUIRRELVM v,SQInteger params,SQBool retval,SQBool raiseerror)
953 if(v->Call(v->GetUp(-(params+1)),params,v->_top-params,res,raiseerror?true:false)){
955 v->Pop(params);//pop closure and args
958 v->Push(res); return SQ_OK;
968 return sq_throwerror(v,_SC("call failed"));
971 SQRESULT sq_suspendvm(HSQUIRRELVM v)
976 SQRESULT sq_wakeupvm(HSQUIRRELVM v,SQBool wakeupret,SQBool retval,SQBool raiseerror,SQBool throwerror)
980 return sq_throwerror(v,_SC("cannot resume a vm that is not running any code"));
982 v->GetAt(v->_stackbase+v->_suspended_target)=v->GetUp(-1); //retval
984 } else v->GetAt(v->_stackbase+v->_suspended_target)=_null_;
985 if(!v->Execute(_null_,v->_top,-1,-1,ret,raiseerror,throwerror?SQVM::ET_RESUME_THROW_VM : SQVM::ET_RESUME_VM))
987 if(sq_getvmstate(v) == SQ_VMSTATE_IDLE) {
988 while (v->_top > 1) v->_stack[--v->_top] = _null_;
995 void sq_setreleasehook(HSQUIRRELVM v,SQInteger idx,SQRELEASEHOOK hook)
997 if(sq_gettop(v) >= 1){
998 SQObjectPtr &ud=stack_get(v,idx);
1000 case OT_USERDATA: _userdata(ud)->_hook = hook; break;
1001 case OT_INSTANCE: _instance(ud)->_hook = hook; break;
1002 case OT_CLASS: _class(ud)->_hook = hook; break;
1003 default: break; //shutup compiler
1008 void sq_setcompilererrorhandler(HSQUIRRELVM v,SQCOMPILERERROR f)
1010 _ss(v)->_compilererrorhandler = f;
1013 SQRESULT sq_writeclosure(HSQUIRRELVM v,SQWRITEFUNC w,SQUserPointer up)
1015 SQObjectPtr *o = NULL;
1016 _GETSAFE_OBJ(v, -1, OT_CLOSURE,o);
1017 unsigned short tag = SQ_BYTECODE_STREAM_TAG;
1018 if(w(up,&tag,2) != 2)
1019 return sq_throwerror(v,_SC("io error"));
1020 if(!_closure(*o)->Save(v,up,w))
1025 SQRESULT sq_readclosure(HSQUIRRELVM v,SQREADFUNC r,SQUserPointer up)
1027 SQObjectPtr closure;
1030 if(r(up,&tag,2) != 2)
1031 return sq_throwerror(v,_SC("io error"));
1032 if(tag != SQ_BYTECODE_STREAM_TAG)
1033 return sq_throwerror(v,_SC("invalid stream"));
1034 if(!SQClosure::Load(v,up,r,closure))
1040 SQChar *sq_getscratchpad(HSQUIRRELVM v,SQInteger minsize)
1042 return _ss(v)->GetScratchPad(minsize);
1045 SQInteger sq_collectgarbage(HSQUIRRELVM v)
1047 #ifndef NO_GARBAGE_COLLECTOR
1048 return _ss(v)->CollectGarbage(v);
1054 const SQChar *sq_getfreevariable(HSQUIRRELVM v,SQInteger idx,SQUnsignedInteger nval)
1056 SQObjectPtr &self = stack_get(v,idx);
1057 const SQChar *name = NULL;
1058 if(type(self) == OT_CLOSURE) {
1059 if(_closure(self)->_outervalues.size()>nval) {
1060 v->Push(_closure(self)->_outervalues[nval]);
1061 SQFunctionProto *fp = _funcproto(_closure(self)->_function);
1062 SQOuterVar &ov = fp->_outervalues[nval];
1063 name = _stringval(ov._name);
1069 SQRESULT sq_setfreevariable(HSQUIRRELVM v,SQInteger idx,SQUnsignedInteger nval)
1071 SQObjectPtr &self=stack_get(v,idx);
1075 if(_closure(self)->_outervalues.size()>nval){
1076 _closure(self)->_outervalues[nval]=stack_get(v,-1);
1078 else return sq_throwerror(v,_SC("invalid free var index"));
1080 case OT_NATIVECLOSURE:
1081 if(_nativeclosure(self)->_outervalues.size()>nval){
1082 _nativeclosure(self)->_outervalues[nval]=stack_get(v,-1);
1084 else return sq_throwerror(v,_SC("invalid free var index"));
1087 return sq_aux_invalidtype(v,type(self));
1093 SQRESULT sq_setattributes(HSQUIRRELVM v,SQInteger idx)
1095 SQObjectPtr *o = NULL;
1096 _GETSAFE_OBJ(v, idx, OT_CLASS,o);
1097 SQObjectPtr &key = stack_get(v,-2);
1098 SQObjectPtr &val = stack_get(v,-1);
1100 if(type(key) == OT_NULL) {
1101 attrs = _class(*o)->_attributes;
1102 _class(*o)->_attributes = val;
1106 }else if(_class(*o)->GetAttributes(key,attrs)) {
1107 _class(*o)->SetAttributes(key,val);
1112 return sq_throwerror(v,_SC("wrong index"));
1115 SQRESULT sq_getattributes(HSQUIRRELVM v,SQInteger idx)
1117 SQObjectPtr *o = NULL;
1118 _GETSAFE_OBJ(v, idx, OT_CLASS,o);
1119 SQObjectPtr &key = stack_get(v,-1);
1121 if(type(key) == OT_NULL) {
1122 attrs = _class(*o)->_attributes;
1127 else if(_class(*o)->GetAttributes(key,attrs)) {
1132 return sq_throwerror(v,_SC("wrong index"));
1135 SQRESULT sq_getbase(HSQUIRRELVM v,SQInteger idx)
1137 SQObjectPtr *o = NULL;
1138 _GETSAFE_OBJ(v, idx, OT_CLASS,o);
1139 if(_class(*o)->_base)
1140 v->Push(SQObjectPtr(_class(*o)->_base));
1146 SQRESULT sq_getclass(HSQUIRRELVM v,SQInteger idx)
1148 SQObjectPtr *o = NULL;
1149 _GETSAFE_OBJ(v, idx, OT_INSTANCE,o);
1150 v->Push(SQObjectPtr(_instance(*o)->_class));
1154 SQRESULT sq_createinstance(HSQUIRRELVM v,SQInteger idx)
1156 SQObjectPtr *o = NULL;
1157 _GETSAFE_OBJ(v, idx, OT_CLASS,o);
1158 v->Push(_class(*o)->CreateInstance());
1162 void sq_weakref(HSQUIRRELVM v,SQInteger idx)
1164 SQObject &o=stack_get(v,idx);
1165 if(ISREFCOUNTED(type(o))) {
1166 v->Push(_refcounted(o)->GetWeakRef(type(o)));
1172 SQRESULT sq_getweakrefval(HSQUIRRELVM v,SQInteger idx)
1174 SQObjectPtr &o = stack_get(v,idx);
1175 if(type(o) != OT_WEAKREF) {
1176 return sq_throwerror(v,_SC("the object must be a weakref"));
1178 v->Push(_weakref(o)->_obj);
1182 SQRESULT sq_getdefaultdelegate(HSQUIRRELVM v,SQObjectType t)
1184 SQSharedState *ss = _ss(v);
1186 case OT_TABLE: v->Push(ss->_table_default_delegate); break;
1187 case OT_ARRAY: v->Push(ss->_array_default_delegate); break;
1188 case OT_STRING: v->Push(ss->_string_default_delegate); break;
1189 case OT_INTEGER: case OT_FLOAT: v->Push(ss->_number_default_delegate); break;
1190 case OT_GENERATOR: v->Push(ss->_generator_default_delegate); break;
1191 case OT_CLOSURE: case OT_NATIVECLOSURE: v->Push(ss->_closure_default_delegate); break;
1192 case OT_THREAD: v->Push(ss->_thread_default_delegate); break;
1193 case OT_CLASS: v->Push(ss->_class_default_delegate); break;
1194 case OT_INSTANCE: v->Push(ss->_instance_default_delegate); break;
1195 case OT_WEAKREF: v->Push(ss->_weakref_default_delegate); break;
1196 default: return sq_throwerror(v,_SC("the type doesn't have a default delegate"));
1201 SQRESULT sq_next(HSQUIRRELVM v,SQInteger idx)
1203 SQObjectPtr o=stack_get(v,idx),&refpos = stack_get(v,-1),realkey,val;
1204 if(type(o) == OT_GENERATOR) {
1205 return sq_throwerror(v,_SC("cannot iterate a generator"));
1208 if(!v->FOREACH_OP(o,realkey,val,refpos,0,666,faketojump))
1210 if(faketojump != 666) {
1224 SQInteger buf_lexfeed(SQUserPointer file)
1226 BufState *buf=(BufState*)file;
1227 if(buf->size<(buf->ptr+1))
1229 return buf->buf[buf->ptr++];
1232 SQRESULT sq_compilebuffer(HSQUIRRELVM v,const SQChar *s,SQInteger size,const SQChar *sourcename,SQBool raiseerror) {
1237 return sq_compile(v, buf_lexfeed, &buf, sourcename, raiseerror);
1240 void sq_move(HSQUIRRELVM dest,HSQUIRRELVM src,SQInteger idx)
1242 dest->Push(stack_get(src,idx));
1245 void sq_setprintfunc(HSQUIRRELVM v, SQPRINTFUNCTION printfunc)
1247 _ss(v)->_printfunc = printfunc;
1250 SQPRINTFUNCTION sq_getprintfunc(HSQUIRRELVM v)
1252 return _ss(v)->_printfunc;
1255 void *sq_malloc(SQUnsignedInteger size)
1257 return SQ_MALLOC(size);
1260 void *sq_realloc(void* p,SQUnsignedInteger oldsize,SQUnsignedInteger newsize)
1262 return SQ_REALLOC(p,oldsize,newsize);
1265 void sq_free(void *p,SQUnsignedInteger size)