diff options
Diffstat (limited to 'squirrel_3_0_1_stable/squirrel')
30 files changed, 11086 insertions, 0 deletions
diff --git a/squirrel_3_0_1_stable/squirrel/Makefile b/squirrel_3_0_1_stable/squirrel/Makefile new file mode 100644 index 000000000..d5de81a96 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/Makefile @@ -0,0 +1,52 @@ +SQUIRREL= ..
+
+
+OUT= $(SQUIRREL)/lib/libsquirrel.a
+INCZ= -I$(SQUIRREL)/include -I. -Iinclude
+DEFS=
+LIB=
+
+OBJS= \
+ sqapi.o \
+ sqbaselib.o \
+ sqfuncstate.o \
+ sqdebug.o \
+ sqlexer.o \
+ sqobject.o \
+ sqcompiler.o \
+ sqstate.o \
+ sqtable.o \
+ sqmem.o \
+ sqvm.o \
+ sqclass.o
+
+SRCS= \
+ sqapi.cpp \
+ sqbaselib.cpp \
+ sqfuncstate.cpp \
+ sqdebug.cpp \
+ sqlexer.cpp \
+ sqobject.cpp \
+ sqcompiler.cpp \
+ sqstate.cpp \
+ sqtable.cpp \
+ sqmem.cpp \
+ sqvm.cpp \
+ sqclass.cpp
+
+
+
+sq32:
+ gcc -O2 -fno-exceptions -fno-rtti -Wall -fno-strict-aliasing -c $(SRCS) $(INCZ) $(DEFS)
+ ar rc $(OUT) *.o
+ rm *.o
+
+sqprof:
+ gcc -O2 -pg -fno-exceptions -fno-rtti -pie -gstabs -g3 -Wall -fno-strict-aliasing -c $(SRCS) $(INCZ) $(DEFS)
+ ar rc $(OUT) *.o
+ rm *.o
+
+sq64:
+ gcc -O2 -m64 -D_SQ64 -fno-exceptions -fno-rtti -Wall -fno-strict-aliasing -c $(SRCS) $(INCZ) $(DEFS)
+ ar rc $(OUT) *.o
+ rm *.o
diff --git a/squirrel_3_0_1_stable/squirrel/sqapi.cpp b/squirrel_3_0_1_stable/squirrel/sqapi.cpp new file mode 100644 index 000000000..05338ce23 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqapi.cpp @@ -0,0 +1,1456 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#include "sqvm.h"
+#include "sqstring.h"
+#include "sqtable.h"
+#include "sqarray.h"
+#include "sqfuncproto.h"
+#include "sqclosure.h"
+#include "squserdata.h"
+#include "sqcompiler.h"
+#include "sqfuncstate.h"
+#include "sqclass.h"
+
+bool sq_aux_gettypedarg(HSQUIRRELVM v,SQInteger idx,SQObjectType type,SQObjectPtr **o)
+{
+ *o = &stack_get(v,idx);
+ if(type(**o) != type){
+ SQObjectPtr oval = v->PrintObjVal(**o);
+ v->Raise_Error(_SC("wrong argument type, expected '%s' got '%.50s'"),IdType2Name(type),_stringval(oval));
+ return false;
+ }
+ return true;
+}
+
+#define _GETSAFE_OBJ(v,idx,type,o) { if(!sq_aux_gettypedarg(v,idx,type,&o)) return SQ_ERROR; }
+
+#define sq_aux_paramscheck(v,count) \
+{ \
+ if(sq_gettop(v) < count){ v->Raise_Error(_SC("not enough params in the stack")); return SQ_ERROR; }\
+}
+
+
+SQInteger sq_aux_invalidtype(HSQUIRRELVM v,SQObjectType type)
+{
+ scsprintf(_ss(v)->GetScratchPad(100), _SC("unexpected type %s"), IdType2Name(type));
+ return sq_throwerror(v, _ss(v)->GetScratchPad(-1));
+}
+
+HSQUIRRELVM sq_open(SQInteger initialstacksize)
+{
+ SQSharedState *ss;
+ SQVM *v;
+ sq_new(ss, SQSharedState);
+ ss->Init();
+ v = (SQVM *)SQ_MALLOC(sizeof(SQVM));
+ new (v) SQVM(ss);
+ ss->_root_vm = v;
+ if(v->Init(NULL, initialstacksize)) {
+ return v;
+ } else {
+ sq_delete(v, SQVM);
+ return NULL;
+ }
+ return v;
+}
+
+HSQUIRRELVM sq_newthread(HSQUIRRELVM friendvm, SQInteger initialstacksize)
+{
+ SQSharedState *ss;
+ SQVM *v;
+ ss=_ss(friendvm);
+
+ v= (SQVM *)SQ_MALLOC(sizeof(SQVM));
+ new (v) SQVM(ss);
+
+ if(v->Init(friendvm, initialstacksize)) {
+ friendvm->Push(v);
+ return v;
+ } else {
+ sq_delete(v, SQVM);
+ return NULL;
+ }
+}
+
+SQInteger sq_getvmstate(HSQUIRRELVM v)
+{
+ if(v->_suspended)
+ return SQ_VMSTATE_SUSPENDED;
+ else {
+ if(v->_callsstacksize != 0) return SQ_VMSTATE_RUNNING;
+ else return SQ_VMSTATE_IDLE;
+ }
+}
+
+void sq_seterrorhandler(HSQUIRRELVM v)
+{
+ SQObject o = stack_get(v, -1);
+ if(sq_isclosure(o) || sq_isnativeclosure(o) || sq_isnull(o)) {
+ v->_errorhandler = o;
+ v->Pop();
+ }
+}
+
+void sq_setnativedebughook(HSQUIRRELVM v,SQDEBUGHOOK hook)
+{
+ v->_debughook_native = hook;
+ v->_debughook_closure.Null();
+ v->_debughook = hook?true:false;
+}
+
+void sq_setdebughook(HSQUIRRELVM v)
+{
+ SQObject o = stack_get(v,-1);
+ if(sq_isclosure(o) || sq_isnativeclosure(o) || sq_isnull(o)) {
+ v->_debughook_closure = o;
+ v->_debughook_native = NULL;
+ v->_debughook = !sq_isnull(o);
+ v->Pop();
+ }
+}
+
+void sq_close(HSQUIRRELVM v)
+{
+ SQSharedState *ss = _ss(v);
+ _thread(ss->_root_vm)->Finalize();
+ sq_delete(ss, SQSharedState);
+}
+
+SQRESULT sq_compile(HSQUIRRELVM v,SQLEXREADFUNC read,SQUserPointer p,const SQChar *sourcename,SQBool raiseerror)
+{
+ SQObjectPtr o;
+#ifndef NO_COMPILER
+ if(Compile(v, read, p, sourcename, o, raiseerror?true:false, _ss(v)->_debuginfo)) {
+ v->Push(SQClosure::Create(_ss(v), _funcproto(o)));
+ return SQ_OK;
+ }
+ return SQ_ERROR;
+#else
+ return sq_throwerror(v,_SC("this is a no compiler build"));
+#endif
+}
+
+void sq_enabledebuginfo(HSQUIRRELVM v, SQBool enable)
+{
+ _ss(v)->_debuginfo = enable?true:false;
+}
+
+void sq_notifyallexceptions(HSQUIRRELVM v, SQBool enable)
+{
+ _ss(v)->_notifyallexceptions = enable?true:false;
+}
+
+void sq_addref(HSQUIRRELVM v,HSQOBJECT *po)
+{
+ if(!ISREFCOUNTED(type(*po))) return;
+#ifdef NO_GARBAGE_COLLECTOR
+ __AddRef(po->_type,po->_unVal);
+#else
+ _ss(v)->_refs_table.AddRef(*po);
+#endif
+}
+
+SQUnsignedInteger sq_getrefcount(HSQUIRRELVM v,HSQOBJECT *po)
+{
+ if(!ISREFCOUNTED(type(*po))) return 0;
+#ifdef NO_GARBAGE_COLLECTOR
+ return po->_unVal.pRefCounted->_uiRef;
+#else
+ return _ss(v)->_refs_table.GetRefCount(*po);
+#endif
+}
+
+SQBool sq_release(HSQUIRRELVM v,HSQOBJECT *po)
+{
+ if(!ISREFCOUNTED(type(*po))) return SQTrue;
+#ifdef NO_GARBAGE_COLLECTOR
+ bool ret = (po->_unVal.pRefCounted->_uiRef <= 1) ? SQTrue : SQFalse;
+ __Release(po->_type,po->_unVal);
+ return ret; //the ret val doesn't work(and cannot be fixed)
+#else
+ return _ss(v)->_refs_table.Release(*po);
+#endif
+}
+
+const SQChar *sq_objtostring(const HSQOBJECT *o)
+{
+ if(sq_type(*o) == OT_STRING) {
+ return _stringval(*o);
+ }
+ return NULL;
+}
+
+SQInteger sq_objtointeger(const HSQOBJECT *o)
+{
+ if(sq_isnumeric(*o)) {
+ return tointeger(*o);
+ }
+ return 0;
+}
+
+SQFloat sq_objtofloat(const HSQOBJECT *o)
+{
+ if(sq_isnumeric(*o)) {
+ return tofloat(*o);
+ }
+ return 0;
+}
+
+SQBool sq_objtobool(const HSQOBJECT *o)
+{
+ if(sq_isbool(*o)) {
+ return _integer(*o);
+ }
+ return SQFalse;
+}
+
+SQUserPointer sq_objtouserpointer(const HSQOBJECT *o)
+{
+ if(sq_isuserpointer(*o)) {
+ return _userpointer(*o);
+ }
+ return 0;
+}
+
+void sq_pushnull(HSQUIRRELVM v)
+{
+ v->PushNull();
+}
+
+void sq_pushstring(HSQUIRRELVM v,const SQChar *s,SQInteger len)
+{
+ if(s)
+ v->Push(SQObjectPtr(SQString::Create(_ss(v), s, len)));
+ else v->PushNull();
+}
+
+void sq_pushinteger(HSQUIRRELVM v,SQInteger n)
+{
+ v->Push(n);
+}
+
+void sq_pushbool(HSQUIRRELVM v,SQBool b)
+{
+ v->Push(b?true:false);
+}
+
+void sq_pushfloat(HSQUIRRELVM v,SQFloat n)
+{
+ v->Push(n);
+}
+
+void sq_pushuserpointer(HSQUIRRELVM v,SQUserPointer p)
+{
+ v->Push(p);
+}
+
+SQUserPointer sq_newuserdata(HSQUIRRELVM v,SQUnsignedInteger size)
+{
+ SQUserData *ud = SQUserData::Create(_ss(v), size);
+ v->Push(ud);
+ return (SQUserPointer)sq_aligning(ud + 1);
+}
+
+void sq_newtable(HSQUIRRELVM v)
+{
+ v->Push(SQTable::Create(_ss(v), 0));
+}
+
+void sq_newtableex(HSQUIRRELVM v,SQInteger initialcapacity)
+{
+ v->Push(SQTable::Create(_ss(v), initialcapacity));
+}
+
+void sq_newarray(HSQUIRRELVM v,SQInteger size)
+{
+ v->Push(SQArray::Create(_ss(v), size));
+}
+
+SQRESULT sq_newclass(HSQUIRRELVM v,SQBool hasbase)
+{
+ SQClass *baseclass = NULL;
+ if(hasbase) {
+ SQObjectPtr &base = stack_get(v,-1);
+ if(type(base) != OT_CLASS)
+ return sq_throwerror(v,_SC("invalid base type"));
+ baseclass = _class(base);
+ }
+ SQClass *newclass = SQClass::Create(_ss(v), baseclass);
+ if(baseclass) v->Pop();
+ v->Push(newclass);
+ return SQ_OK;
+}
+
+SQBool sq_instanceof(HSQUIRRELVM v)
+{
+ SQObjectPtr &inst = stack_get(v,-1);
+ SQObjectPtr &cl = stack_get(v,-2);
+ if(type(inst) != OT_INSTANCE || type(cl) != OT_CLASS)
+ return sq_throwerror(v,_SC("invalid param type"));
+ return _instance(inst)->InstanceOf(_class(cl))?SQTrue:SQFalse;
+}
+
+SQRESULT sq_arrayappend(HSQUIRRELVM v,SQInteger idx)
+{
+ sq_aux_paramscheck(v,2);
+ SQObjectPtr *arr;
+ _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
+ _array(*arr)->Append(v->GetUp(-1));
+ v->Pop();
+ return SQ_OK;
+}
+
+SQRESULT sq_arraypop(HSQUIRRELVM v,SQInteger idx,SQBool pushval)
+{
+ sq_aux_paramscheck(v, 1);
+ SQObjectPtr *arr;
+ _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
+ if(_array(*arr)->Size() > 0) {
+ if(pushval != 0){ v->Push(_array(*arr)->Top()); }
+ _array(*arr)->Pop();
+ return SQ_OK;
+ }
+ return sq_throwerror(v, _SC("empty array"));
+}
+
+SQRESULT sq_arrayresize(HSQUIRRELVM v,SQInteger idx,SQInteger newsize)
+{
+ sq_aux_paramscheck(v,1);
+ SQObjectPtr *arr;
+ _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
+ if(newsize >= 0) {
+ _array(*arr)->Resize(newsize);
+ return SQ_OK;
+ }
+ return sq_throwerror(v,_SC("negative size"));
+}
+
+
+SQRESULT sq_arrayreverse(HSQUIRRELVM v,SQInteger idx)
+{
+ sq_aux_paramscheck(v, 1);
+ SQObjectPtr *o;
+ _GETSAFE_OBJ(v, idx, OT_ARRAY,o);
+ SQArray *arr = _array(*o);
+ if(arr->Size() > 0) {
+ SQObjectPtr t;
+ SQInteger size = arr->Size();
+ SQInteger n = size >> 1; size -= 1;
+ for(SQInteger i = 0; i < n; i++) {
+ t = arr->_values[i];
+ arr->_values[i] = arr->_values[size-i];
+ arr->_values[size-i] = t;
+ }
+ return SQ_OK;
+ }
+ return SQ_OK;
+}
+
+SQRESULT sq_arrayremove(HSQUIRRELVM v,SQInteger idx,SQInteger itemidx)
+{
+ sq_aux_paramscheck(v, 1);
+ SQObjectPtr *arr;
+ _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
+ return _array(*arr)->Remove(itemidx) ? SQ_OK : sq_throwerror(v,_SC("index out of range"));
+}
+
+SQRESULT sq_arrayinsert(HSQUIRRELVM v,SQInteger idx,SQInteger destpos)
+{
+ sq_aux_paramscheck(v, 1);
+ SQObjectPtr *arr;
+ _GETSAFE_OBJ(v, idx, OT_ARRAY,arr);
+ SQRESULT ret = _array(*arr)->Insert(destpos, v->GetUp(-1)) ? SQ_OK : sq_throwerror(v,_SC("index out of range"));
+ v->Pop();
+ return ret;
+}
+
+void sq_newclosure(HSQUIRRELVM v,SQFUNCTION func,SQUnsignedInteger nfreevars)
+{
+ SQNativeClosure *nc = SQNativeClosure::Create(_ss(v), func,nfreevars);
+ nc->_nparamscheck = 0;
+ for(SQUnsignedInteger i = 0; i < nfreevars; i++) {
+ nc->_outervalues[i] = v->Top();
+ v->Pop();
+ }
+ v->Push(SQObjectPtr(nc));
+}
+
+SQRESULT sq_getclosureinfo(HSQUIRRELVM v,SQInteger idx,SQUnsignedInteger *nparams,SQUnsignedInteger *nfreevars)
+{
+ SQObject o = stack_get(v, idx);
+ if(type(o) == OT_CLOSURE) {
+ SQClosure *c = _closure(o);
+ SQFunctionProto *proto = c->_function;
+ *nparams = (SQUnsignedInteger)proto->_nparameters;
+ *nfreevars = (SQUnsignedInteger)proto->_noutervalues;
+ return SQ_OK;
+ }
+ else if(type(o) == OT_NATIVECLOSURE)
+ {
+ SQNativeClosure *c = _nativeclosure(o);
+ *nparams = (SQUnsignedInteger)c->_nparamscheck;
+ *nfreevars = c->_noutervalues;
+ return SQ_OK;
+ }
+ return sq_throwerror(v,_SC("the object is not a closure"));
+}
+
+SQRESULT sq_setnativeclosurename(HSQUIRRELVM v,SQInteger idx,const SQChar *name)
+{
+ SQObject o = stack_get(v, idx);
+ if(sq_isnativeclosure(o)) {
+ SQNativeClosure *nc = _nativeclosure(o);
+ nc->_name = SQString::Create(_ss(v),name);
+ return SQ_OK;
+ }
+ return sq_throwerror(v,_SC("the object is not a nativeclosure"));
+}
+
+SQRESULT sq_setparamscheck(HSQUIRRELVM v,SQInteger nparamscheck,const SQChar *typemask)
+{
+ SQObject o = stack_get(v, -1);
+ if(!sq_isnativeclosure(o))
+ return sq_throwerror(v, _SC("native closure expected"));
+ SQNativeClosure *nc = _nativeclosure(o);
+ nc->_nparamscheck = nparamscheck;
+ if(typemask) {
+ SQIntVec res;
+ if(!CompileTypemask(res, typemask))
+ return sq_throwerror(v, _SC("invalid typemask"));
+ nc->_typecheck.copy(res);
+ }
+ else {
+ nc->_typecheck.resize(0);
+ }
+ if(nparamscheck == SQ_MATCHTYPEMASKSTRING) {
+ nc->_nparamscheck = nc->_typecheck.size();
+ }
+ return SQ_OK;
+}
+
+SQRESULT sq_bindenv(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &o = stack_get(v,idx);
+ if(!sq_isnativeclosure(o) &&
+ !sq_isclosure(o))
+ return sq_throwerror(v,_SC("the target is not a closure"));
+ SQObjectPtr &env = stack_get(v,-1);
+ if(!sq_istable(env) &&
+ !sq_isclass(env) &&
+ !sq_isinstance(env))
+ return sq_throwerror(v,_SC("invalid environment"));
+ SQWeakRef *w = _refcounted(env)->GetWeakRef(type(env));
+ SQObjectPtr ret;
+ if(sq_isclosure(o)) {
+ SQClosure *c = _closure(o)->Clone();
+ __ObjRelease(c->_env);
+ c->_env = w;
+ __ObjAddRef(c->_env);
+ if(_closure(o)->_base) {
+ c->_base = _closure(o)->_base;
+ __ObjAddRef(c->_base);
+ }
+ ret = c;
+ }
+ else { //then must be a native closure
+ SQNativeClosure *c = _nativeclosure(o)->Clone();
+ __ObjRelease(c->_env);
+ c->_env = w;
+ __ObjAddRef(c->_env);
+ ret = c;
+ }
+ v->Pop();
+ v->Push(ret);
+ return SQ_OK;
+}
+
+SQRESULT sq_clear(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObject &o=stack_get(v,idx);
+ switch(type(o)) {
+ case OT_TABLE: _table(o)->Clear(); break;
+ case OT_ARRAY: _array(o)->Resize(0); break;
+ default:
+ return sq_throwerror(v, _SC("clear only works on table and array"));
+ break;
+
+ }
+ return SQ_OK;
+}
+
+void sq_pushroottable(HSQUIRRELVM v)
+{
+ v->Push(v->_roottable);
+}
+
+void sq_pushregistrytable(HSQUIRRELVM v)
+{
+ v->Push(_ss(v)->_registry);
+}
+
+void sq_pushconsttable(HSQUIRRELVM v)
+{
+ v->Push(_ss(v)->_consts);
+}
+
+SQRESULT sq_setroottable(HSQUIRRELVM v)
+{
+ SQObject o = stack_get(v, -1);
+ if(sq_istable(o) || sq_isnull(o)) {
+ v->_roottable = o;
+ v->Pop();
+ return SQ_OK;
+ }
+ return sq_throwerror(v, _SC("ivalid type"));
+}
+
+SQRESULT sq_setconsttable(HSQUIRRELVM v)
+{
+ SQObject o = stack_get(v, -1);
+ if(sq_istable(o)) {
+ _ss(v)->_consts = o;
+ v->Pop();
+ return SQ_OK;
+ }
+ return sq_throwerror(v, _SC("ivalid type, expected table"));
+}
+
+void sq_setforeignptr(HSQUIRRELVM v,SQUserPointer p)
+{
+ v->_foreignptr = p;
+}
+
+SQUserPointer sq_getforeignptr(HSQUIRRELVM v)
+{
+ return v->_foreignptr;
+}
+
+void sq_push(HSQUIRRELVM v,SQInteger idx)
+{
+ v->Push(stack_get(v, idx));
+}
+
+SQObjectType sq_gettype(HSQUIRRELVM v,SQInteger idx)
+{
+ return type(stack_get(v, idx));
+}
+
+
+SQRESULT sq_tostring(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &o = stack_get(v, idx);
+ SQObjectPtr res;
+ if(!v->ToString(o,res)) {
+ return SQ_ERROR;
+ }
+ v->Push(res);
+ return SQ_OK;
+}
+
+void sq_tobool(HSQUIRRELVM v, SQInteger idx, SQBool *b)
+{
+ SQObjectPtr &o = stack_get(v, idx);
+ *b = SQVM::IsFalse(o)?SQFalse:SQTrue;
+}
+
+SQRESULT sq_getinteger(HSQUIRRELVM v,SQInteger idx,SQInteger *i)
+{
+ SQObjectPtr &o = stack_get(v, idx);
+ if(sq_isnumeric(o)) {
+ *i = tointeger(o);
+ return SQ_OK;
+ }
+ return SQ_ERROR;
+}
+
+SQRESULT sq_getfloat(HSQUIRRELVM v,SQInteger idx,SQFloat *f)
+{
+ SQObjectPtr &o = stack_get(v, idx);
+ if(sq_isnumeric(o)) {
+ *f = tofloat(o);
+ return SQ_OK;
+ }
+ return SQ_ERROR;
+}
+
+SQRESULT sq_getbool(HSQUIRRELVM v,SQInteger idx,SQBool *b)
+{
+ SQObjectPtr &o = stack_get(v, idx);
+ if(sq_isbool(o)) {
+ *b = _integer(o);
+ return SQ_OK;
+ }
+ return SQ_ERROR;
+}
+
+SQRESULT sq_getstring(HSQUIRRELVM v,SQInteger idx,const SQChar **c)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_STRING,o);
+ *c = _stringval(*o);
+ return SQ_OK;
+}
+
+SQRESULT sq_getthread(HSQUIRRELVM v,SQInteger idx,HSQUIRRELVM *thread)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_THREAD,o);
+ *thread = _thread(*o);
+ return SQ_OK;
+}
+
+SQRESULT sq_clone(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &o = stack_get(v,idx);
+ v->PushNull();
+ if(!v->Clone(o, stack_get(v, -1))){
+ v->Pop();
+ return SQ_ERROR;
+ }
+ return SQ_OK;
+}
+
+SQInteger sq_getsize(HSQUIRRELVM v, SQInteger idx)
+{
+ SQObjectPtr &o = stack_get(v, idx);
+ SQObjectType type = type(o);
+ switch(type) {
+ case OT_STRING: return _string(o)->_len;
+ case OT_TABLE: return _table(o)->CountUsed();
+ case OT_ARRAY: return _array(o)->Size();
+ case OT_USERDATA: return _userdata(o)->_size;
+ case OT_INSTANCE: return _instance(o)->_class->_udsize;
+ case OT_CLASS: return _class(o)->_udsize;
+ default:
+ return sq_aux_invalidtype(v, type);
+ }
+}
+
+SQRESULT sq_getuserdata(HSQUIRRELVM v,SQInteger idx,SQUserPointer *p,SQUserPointer *typetag)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_USERDATA,o);
+ (*p) = _userdataval(*o);
+ if(typetag) *typetag = _userdata(*o)->_typetag;
+ return SQ_OK;
+}
+
+SQRESULT sq_settypetag(HSQUIRRELVM v,SQInteger idx,SQUserPointer typetag)
+{
+ SQObjectPtr &o = stack_get(v,idx);
+ switch(type(o)) {
+ case OT_USERDATA: _userdata(o)->_typetag = typetag; break;
+ case OT_CLASS: _class(o)->_typetag = typetag; break;
+ default: return sq_throwerror(v,_SC("invalid object type"));
+ }
+ return SQ_OK;
+}
+
+SQRESULT sq_getobjtypetag(const HSQOBJECT *o,SQUserPointer * typetag)
+{
+ switch(type(*o)) {
+ case OT_INSTANCE: *typetag = _instance(*o)->_class->_typetag; break;
+ case OT_USERDATA: *typetag = _userdata(*o)->_typetag; break;
+ case OT_CLASS: *typetag = _class(*o)->_typetag; break;
+ default: return SQ_ERROR;
+ }
+ return SQ_OK;
+}
+
+SQRESULT sq_gettypetag(HSQUIRRELVM v,SQInteger idx,SQUserPointer *typetag)
+{
+ SQObjectPtr &o = stack_get(v,idx);
+ if(SQ_FAILED(sq_getobjtypetag(&o,typetag)))
+ return sq_throwerror(v,_SC("invalid object type"));
+ return SQ_OK;
+}
+
+SQRESULT sq_getuserpointer(HSQUIRRELVM v, SQInteger idx, SQUserPointer *p)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_USERPOINTER,o);
+ (*p) = _userpointer(*o);
+ return SQ_OK;
+}
+
+SQRESULT sq_setinstanceup(HSQUIRRELVM v, SQInteger idx, SQUserPointer p)
+{
+ SQObjectPtr &o = stack_get(v,idx);
+ if(type(o) != OT_INSTANCE) return sq_throwerror(v,_SC("the object is not a class instance"));
+ _instance(o)->_userpointer = p;
+ return SQ_OK;
+}
+
+SQRESULT sq_setclassudsize(HSQUIRRELVM v, SQInteger idx, SQInteger udsize)
+{
+ SQObjectPtr &o = stack_get(v,idx);
+ if(type(o) != OT_CLASS) return sq_throwerror(v,_SC("the object is not a class"));
+ if(_class(o)->_locked) return sq_throwerror(v,_SC("the class is locked"));
+ _class(o)->_udsize = udsize;
+ return SQ_OK;
+}
+
+
+SQRESULT sq_getinstanceup(HSQUIRRELVM v, SQInteger idx, SQUserPointer *p,SQUserPointer typetag)
+{
+ SQObjectPtr &o = stack_get(v,idx);
+ if(type(o) != OT_INSTANCE) return sq_throwerror(v,_SC("the object is not a class instance"));
+ (*p) = _instance(o)->_userpointer;
+ if(typetag != 0) {
+ SQClass *cl = _instance(o)->_class;
+ do{
+ if(cl->_typetag == typetag)
+ return SQ_OK;
+ cl = cl->_base;
+ }while(cl != NULL);
+ return sq_throwerror(v,_SC("invalid type tag"));
+ }
+ return SQ_OK;
+}
+
+SQInteger sq_gettop(HSQUIRRELVM v)
+{
+ return (v->_top) - v->_stackbase;
+}
+
+void sq_settop(HSQUIRRELVM v, SQInteger newtop)
+{
+ SQInteger top = sq_gettop(v);
+ if(top > newtop)
+ sq_pop(v, top - newtop);
+ else
+ while(top++ < newtop) sq_pushnull(v);
+}
+
+void sq_pop(HSQUIRRELVM v, SQInteger nelemstopop)
+{
+ assert(v->_top >= nelemstopop);
+ v->Pop(nelemstopop);
+}
+
+void sq_poptop(HSQUIRRELVM v)
+{
+ assert(v->_top >= 1);
+ v->Pop();
+}
+
+
+void sq_remove(HSQUIRRELVM v, SQInteger idx)
+{
+ v->Remove(idx);
+}
+
+SQInteger sq_cmp(HSQUIRRELVM v)
+{
+ SQInteger res;
+ v->ObjCmp(stack_get(v, -1), stack_get(v, -2),res);
+ return res;
+}
+
+SQRESULT sq_newslot(HSQUIRRELVM v, SQInteger idx, SQBool bstatic)
+{
+ sq_aux_paramscheck(v, 3);
+ SQObjectPtr &self = stack_get(v, idx);
+ if(type(self) == OT_TABLE || type(self) == OT_CLASS) {
+ SQObjectPtr &key = v->GetUp(-2);
+ if(type(key) == OT_NULL) return sq_throwerror(v, _SC("null is not a valid key"));
+ v->NewSlot(self, key, v->GetUp(-1),bstatic?true:false);
+ v->Pop(2);
+ }
+ return SQ_OK;
+}
+
+SQRESULT sq_deleteslot(HSQUIRRELVM v,SQInteger idx,SQBool pushval)
+{
+ sq_aux_paramscheck(v, 2);
+ SQObjectPtr *self;
+ _GETSAFE_OBJ(v, idx, OT_TABLE,self);
+ SQObjectPtr &key = v->GetUp(-1);
+ if(type(key) == OT_NULL) return sq_throwerror(v, _SC("null is not a valid key"));
+ SQObjectPtr res;
+ if(!v->DeleteSlot(*self, key, res)){
+ return SQ_ERROR;
+ }
+ if(pushval) v->GetUp(-1) = res;
+ else v->Pop();
+ return SQ_OK;
+}
+
+SQRESULT sq_set(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &self = stack_get(v, idx);
+ if(v->Set(self, v->GetUp(-2), v->GetUp(-1),DONT_FALL_BACK)) {
+ v->Pop(2);
+ return SQ_OK;
+ }
+ return SQ_ERROR;
+}
+
+SQRESULT sq_rawset(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &self = stack_get(v, idx);
+ if(type(v->GetUp(-2)) == OT_NULL) return sq_throwerror(v, _SC("null key"));
+ switch(type(self)) {
+ case OT_TABLE:
+ _table(self)->NewSlot(v->GetUp(-2), v->GetUp(-1));
+ v->Pop(2);
+ return SQ_OK;
+ break;
+ case OT_CLASS:
+ _class(self)->NewSlot(_ss(v), v->GetUp(-2), v->GetUp(-1),false);
+ v->Pop(2);
+ return SQ_OK;
+ break;
+ case OT_INSTANCE:
+ if(_instance(self)->Set(v->GetUp(-2), v->GetUp(-1))) {
+ v->Pop(2);
+ return SQ_OK;
+ }
+ break;
+ case OT_ARRAY:
+ if(v->Set(self, v->GetUp(-2), v->GetUp(-1),false)) {
+ v->Pop(2);
+ return SQ_OK;
+ }
+ break;
+ default:
+ v->Pop(2);
+ return sq_throwerror(v, _SC("rawset works only on array/table/class and instance"));
+ }
+ v->Raise_IdxError(v->GetUp(-2));return SQ_ERROR;
+}
+
+SQRESULT sq_setdelegate(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &self = stack_get(v, idx);
+ SQObjectPtr &mt = v->GetUp(-1);
+ SQObjectType type = type(self);
+ switch(type) {
+ case OT_TABLE:
+ if(type(mt) == OT_TABLE) {
+ if(!_table(self)->SetDelegate(_table(mt))) return sq_throwerror(v, _SC("delagate cycle")); v->Pop();}
+ else if(type(mt)==OT_NULL) {
+ _table(self)->SetDelegate(NULL); v->Pop(); }
+ else return sq_aux_invalidtype(v,type);
+ break;
+ case OT_USERDATA:
+ if(type(mt)==OT_TABLE) {
+ _userdata(self)->SetDelegate(_table(mt)); v->Pop(); }
+ else if(type(mt)==OT_NULL) {
+ _userdata(self)->SetDelegate(NULL); v->Pop(); }
+ else return sq_aux_invalidtype(v, type);
+ break;
+ default:
+ return sq_aux_invalidtype(v, type);
+ break;
+ }
+ return SQ_OK;
+}
+
+SQRESULT sq_rawdeleteslot(HSQUIRRELVM v,SQInteger idx,SQBool pushval)
+{
+ sq_aux_paramscheck(v, 2);
+ SQObjectPtr *self;
+ _GETSAFE_OBJ(v, idx, OT_TABLE,self);
+ SQObjectPtr &key = v->GetUp(-1);
+ SQObjectPtr t;
+ if(_table(*self)->Get(key,t)) {
+ _table(*self)->Remove(key);
+ }
+ if(pushval != 0)
+ v->GetUp(-1) = t;
+ else
+ v->Pop();
+ return SQ_OK;
+}
+
+SQRESULT sq_getdelegate(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &self=stack_get(v,idx);
+ switch(type(self)){
+ case OT_TABLE:
+ case OT_USERDATA:
+ if(!_delegable(self)->_delegate){
+ v->PushNull();
+ break;
+ }
+ v->Push(SQObjectPtr(_delegable(self)->_delegate));
+ break;
+ default: return sq_throwerror(v,_SC("wrong type")); break;
+ }
+ return SQ_OK;
+
+}
+
+SQRESULT sq_get(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &self=stack_get(v,idx);
+ if(v->Get(self,v->GetUp(-1),v->GetUp(-1),false,DONT_FALL_BACK))
+ return SQ_OK;
+ v->Pop();
+ return SQ_ERROR;
+}
+
+SQRESULT sq_rawget(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &self=stack_get(v,idx);
+ switch(type(self)) {
+ case OT_TABLE:
+ if(_table(self)->Get(v->GetUp(-1),v->GetUp(-1)))
+ return SQ_OK;
+ break;
+ case OT_CLASS:
+ if(_class(self)->Get(v->GetUp(-1),v->GetUp(-1)))
+ return SQ_OK;
+ break;
+ case OT_INSTANCE:
+ if(_instance(self)->Get(v->GetUp(-1),v->GetUp(-1)))
+ return SQ_OK;
+ break;
+ case OT_ARRAY:{
+ SQObjectPtr& key = v->GetUp(-1);
+ if(sq_isnumeric(key)){
+ if(_array(self)->Get(tointeger(key),v->GetUp(-1))) {
+ return SQ_OK;
+ }
+ }
+ else {
+ v->Pop();
+ return sq_throwerror(v,_SC("invalid index type for an array"));
+ }
+ }
+ break;
+ default:
+ v->Pop();
+ return sq_throwerror(v,_SC("rawget works only on array/table/instance and class"));
+ }
+ v->Pop();
+ return sq_throwerror(v,_SC("the index doesn't exist"));
+}
+
+SQRESULT sq_getstackobj(HSQUIRRELVM v,SQInteger idx,HSQOBJECT *po)
+{
+ *po=stack_get(v,idx);
+ return SQ_OK;
+}
+
+const SQChar *sq_getlocal(HSQUIRRELVM v,SQUnsignedInteger level,SQUnsignedInteger idx)
+{
+ SQUnsignedInteger cstksize=v->_callsstacksize;
+ SQUnsignedInteger lvl=(cstksize-level)-1;
+ SQInteger stackbase=v->_stackbase;
+ if(lvl<cstksize){
+ for(SQUnsignedInteger i=0;i<level;i++){
+ SQVM::CallInfo &ci=v->_callsstack[(cstksize-i)-1];
+ stackbase-=ci._prevstkbase;
+ }
+ SQVM::CallInfo &ci=v->_callsstack[lvl];
+ if(type(ci._closure)!=OT_CLOSURE)
+ return NULL;
+ SQClosure *c=_closure(ci._closure);
+ SQFunctionProto *func=c->_function;
+ if(func->_noutervalues > (SQInteger)idx) {
+ v->Push(*_outer(c->_outervalues[idx])->_valptr);
+ return _stringval(func->_outervalues[idx]._name);
+ }
+ idx -= func->_noutervalues;
+ return func->GetLocal(v,stackbase,idx,(SQInteger)(ci._ip-func->_instructions)-1);
+ }
+ return NULL;
+}
+
+void sq_pushobject(HSQUIRRELVM v,HSQOBJECT obj)
+{
+ v->Push(SQObjectPtr(obj));
+}
+
+void sq_resetobject(HSQOBJECT *po)
+{
+ po->_unVal.pUserPointer=NULL;po->_type=OT_NULL;
+}
+
+SQRESULT sq_throwerror(HSQUIRRELVM v,const SQChar *err)
+{
+ v->_lasterror=SQString::Create(_ss(v),err);
+ return SQ_ERROR;
+}
+
+SQRESULT sq_throwobject(HSQUIRRELVM v)
+{
+ v->_lasterror = v->GetUp(-1);
+ v->Pop();
+ return SQ_ERROR;
+}
+
+
+void sq_reseterror(HSQUIRRELVM v)
+{
+ v->_lasterror.Null();
+}
+
+void sq_getlasterror(HSQUIRRELVM v)
+{
+ v->Push(v->_lasterror);
+}
+
+SQRESULT sq_reservestack(HSQUIRRELVM v,SQInteger nsize)
+{
+ if (((SQUnsignedInteger)v->_top + nsize) > v->_stack.size()) {
+ if(v->_nmetamethodscall) {
+ return sq_throwerror(v,_SC("cannot resize stack while in a metamethod"));
+ }
+ v->_stack.resize(v->_stack.size() + ((v->_top + nsize) - v->_stack.size()));
+ }
+ return SQ_OK;
+}
+
+SQRESULT sq_resume(HSQUIRRELVM v,SQBool retval,SQBool raiseerror)
+{
+ if(type(v->GetUp(-1))==OT_GENERATOR){
+ v->PushNull(); //retval
+ if(!v->Execute(v->GetUp(-2),0,v->_top,v->GetUp(-1),raiseerror,SQVM::ET_RESUME_GENERATOR))
+ {v->Raise_Error(v->_lasterror); return SQ_ERROR;}
+ if(!retval)
+ v->Pop();
+ return SQ_OK;
+ }
+ return sq_throwerror(v,_SC("only generators can be resumed"));
+}
+
+SQRESULT sq_call(HSQUIRRELVM v,SQInteger params,SQBool retval,SQBool raiseerror)
+{
+ SQObjectPtr res;
+ if(v->Call(v->GetUp(-(params+1)),params,v->_top-params,res,raiseerror?true:false)){
+
+ if(!v->_suspended) {
+ v->Pop(params);//pop closure and args
+ }
+ if(retval){
+ v->Push(res); return SQ_OK;
+ }
+ return SQ_OK;
+ }
+ else {
+ v->Pop(params);
+ return SQ_ERROR;
+ }
+ if(!v->_suspended)
+ v->Pop(params);
+ return sq_throwerror(v,_SC("call failed"));
+}
+
+SQRESULT sq_suspendvm(HSQUIRRELVM v)
+{
+ return v->Suspend();
+}
+
+SQRESULT sq_wakeupvm(HSQUIRRELVM v,SQBool wakeupret,SQBool retval,SQBool raiseerror,SQBool throwerror)
+{
+ SQObjectPtr ret;
+ if(!v->_suspended)
+ return sq_throwerror(v,_SC("cannot resume a vm that is not running any code"));
+ SQInteger target = v->_suspended_target;
+ if(wakeupret) {
+ if(target != -1) {
+ v->GetAt(v->_stackbase+v->_suspended_target)=v->GetUp(-1); //retval
+ }
+ v->Pop();
+ } else if(target != -1) { v->GetAt(v->_stackbase+v->_suspended_target).Null(); }
+ SQObjectPtr dummy;
+ if(!v->Execute(dummy,-1,-1,ret,raiseerror,throwerror?SQVM::ET_RESUME_THROW_VM : SQVM::ET_RESUME_VM)) {
+ return SQ_ERROR;
+ }
+ if(retval)
+ v->Push(ret);
+ return SQ_OK;
+}
+
+void sq_setreleasehook(HSQUIRRELVM v,SQInteger idx,SQRELEASEHOOK hook)
+{
+ if(sq_gettop(v) >= 1){
+ SQObjectPtr &ud=stack_get(v,idx);
+ switch( type(ud) ) {
+ case OT_USERDATA: _userdata(ud)->_hook = hook; break;
+ case OT_INSTANCE: _instance(ud)->_hook = hook; break;
+ case OT_CLASS: _class(ud)->_hook = hook; break;
+ default: break; //shutup compiler
+ }
+ }
+}
+
+void sq_setcompilererrorhandler(HSQUIRRELVM v,SQCOMPILERERROR f)
+{
+ _ss(v)->_compilererrorhandler = f;
+}
+
+SQRESULT sq_writeclosure(HSQUIRRELVM v,SQWRITEFUNC w,SQUserPointer up)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, -1, OT_CLOSURE,o);
+ unsigned short tag = SQ_BYTECODE_STREAM_TAG;
+ if(w(up,&tag,2) != 2)
+ return sq_throwerror(v,_SC("io error"));
+ if(!_closure(*o)->Save(v,up,w))
+ return SQ_ERROR;
+ return SQ_OK;
+}
+
+SQRESULT sq_readclosure(HSQUIRRELVM v,SQREADFUNC r,SQUserPointer up)
+{
+ SQObjectPtr closure;
+
+ unsigned short tag;
+ if(r(up,&tag,2) != 2)
+ return sq_throwerror(v,_SC("io error"));
+ if(tag != SQ_BYTECODE_STREAM_TAG)
+ return sq_throwerror(v,_SC("invalid stream"));
+ if(!SQClosure::Load(v,up,r,closure))
+ return SQ_ERROR;
+ v->Push(closure);
+ return SQ_OK;
+}
+
+SQChar *sq_getscratchpad(HSQUIRRELVM v,SQInteger minsize)
+{
+ return _ss(v)->GetScratchPad(minsize);
+}
+
+SQRESULT sq_resurrectunreachable(HSQUIRRELVM v)
+{
+#ifndef NO_GARBAGE_COLLECTOR
+ _ss(v)->ResurrectUnreachable(v);
+ return SQ_OK;
+#else
+ return sq_throwerror(v,_SC("sq_resurrectunreachable requires a garbage collector build"));
+#endif
+}
+
+SQInteger sq_collectgarbage(HSQUIRRELVM v)
+{
+#ifndef NO_GARBAGE_COLLECTOR
+ return _ss(v)->CollectGarbage(v);
+#else
+ return -1;
+#endif
+}
+
+SQRESULT sq_getcallee(HSQUIRRELVM v)
+{
+ if(v->_callsstacksize > 1)
+ {
+ v->Push(v->_callsstack[v->_callsstacksize - 2]._closure);
+ return SQ_OK;
+ }
+ return sq_throwerror(v,_SC("no closure in the calls stack"));
+}
+
+const SQChar *sq_getfreevariable(HSQUIRRELVM v,SQInteger idx,SQUnsignedInteger nval)
+{
+ SQObjectPtr &self=stack_get(v,idx);
+ const SQChar *name = NULL;
+ switch(type(self))
+ {
+ case OT_CLOSURE:{
+ SQClosure *clo = _closure(self);
+ SQFunctionProto *fp = clo->_function;
+ if(((SQUnsignedInteger)fp->_noutervalues) > nval) {
+ v->Push(*(_outer(clo->_outervalues[nval])->_valptr));
+ SQOuterVar &ov = fp->_outervalues[nval];
+ name = _stringval(ov._name);
+ }
+ }
+ break;
+ case OT_NATIVECLOSURE:{
+ SQNativeClosure *clo = _nativeclosure(self);
+ if(clo->_noutervalues > nval) {
+ v->Push(clo->_outervalues[nval]);
+ name = _SC("@NATIVE");
+ }
+ }
+ break;
+ default: break; //shutup compiler
+ }
+ return name;
+}
+
+SQRESULT sq_setfreevariable(HSQUIRRELVM v,SQInteger idx,SQUnsignedInteger nval)
+{
+ SQObjectPtr &self=stack_get(v,idx);
+ switch(type(self))
+ {
+ case OT_CLOSURE:{
+ SQFunctionProto *fp = _closure(self)->_function;
+ if(((SQUnsignedInteger)fp->_noutervalues) > nval){
+ *(_outer(_closure(self)->_outervalues[nval])->_valptr) = stack_get(v,-1);
+ }
+ else return sq_throwerror(v,_SC("invalid free var index"));
+ }
+ break;
+ case OT_NATIVECLOSURE:
+ if(_nativeclosure(self)->_noutervalues > nval){
+ _nativeclosure(self)->_outervalues[nval] = stack_get(v,-1);
+ }
+ else return sq_throwerror(v,_SC("invalid free var index"));
+ break;
+ default:
+ return sq_aux_invalidtype(v,type(self));
+ }
+ v->Pop();
+ return SQ_OK;
+}
+
+SQRESULT sq_setattributes(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_CLASS,o);
+ SQObjectPtr &key = stack_get(v,-2);
+ SQObjectPtr &val = stack_get(v,-1);
+ SQObjectPtr attrs;
+ if(type(key) == OT_NULL) {
+ attrs = _class(*o)->_attributes;
+ _class(*o)->_attributes = val;
+ v->Pop(2);
+ v->Push(attrs);
+ return SQ_OK;
+ }else if(_class(*o)->GetAttributes(key,attrs)) {
+ _class(*o)->SetAttributes(key,val);
+ v->Pop(2);
+ v->Push(attrs);
+ return SQ_OK;
+ }
+ return sq_throwerror(v,_SC("wrong index"));
+}
+
+SQRESULT sq_getattributes(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_CLASS,o);
+ SQObjectPtr &key = stack_get(v,-1);
+ SQObjectPtr attrs;
+ if(type(key) == OT_NULL) {
+ attrs = _class(*o)->_attributes;
+ v->Pop();
+ v->Push(attrs);
+ return SQ_OK;
+ }
+ else if(_class(*o)->GetAttributes(key,attrs)) {
+ v->Pop();
+ v->Push(attrs);
+ return SQ_OK;
+ }
+ return sq_throwerror(v,_SC("wrong index"));
+}
+
+SQRESULT sq_getmemberhandle(HSQUIRRELVM v,SQInteger idx,HSQMEMBERHANDLE *handle)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_CLASS,o);
+ SQObjectPtr &key = stack_get(v,-1);
+ SQTable *m = _class(*o)->_members;
+ SQObjectPtr val;
+ if(m->Get(key,val)) {
+ handle->_static = _isfield(val) ? SQFalse : SQTrue;
+ handle->_index = _member_idx(val);
+ v->Pop();
+ return SQ_OK;
+ }
+ return sq_throwerror(v,_SC("wrong index"));
+}
+
+SQRESULT _getmemberbyhandle(HSQUIRRELVM v,SQObjectPtr &self,HSQMEMBERHANDLE *handle,SQObjectPtr *&val)
+{
+ switch(type(self)) {
+ case OT_INSTANCE: {
+ SQInstance *i = _instance(self);
+ if(handle->_static) {
+ SQClass *c = i->_class;
+ val = &c->_methods[handle->_index].val;
+ }
+ else {
+ val = &i->_values[handle->_index];
+
+ }
+ }
+ break;
+ case OT_CLASS: {
+ SQClass *c = _class(self);
+ if(handle->_static) {
+ val = &c->_methods[handle->_index].val;
+ }
+ else {
+ val = &c->_defaultvalues[handle->_index].val;
+ }
+ }
+ break;
+ default:
+ return sq_throwerror(v,_SC("wrong type(expected class or instance)"));
+ }
+ return SQ_OK;
+}
+
+SQRESULT sq_getbyhandle(HSQUIRRELVM v,SQInteger idx,HSQMEMBERHANDLE *handle)
+{
+ SQObjectPtr &self = stack_get(v,idx);
+ SQObjectPtr *val = NULL;
+ if(SQ_FAILED(_getmemberbyhandle(v,self,handle,val))) {
+ return SQ_ERROR;
+ }
+ v->Push(_realval(*val));
+ return SQ_OK;
+}
+
+SQRESULT sq_setbyhandle(HSQUIRRELVM v,SQInteger idx,HSQMEMBERHANDLE *handle)
+{
+ SQObjectPtr &self = stack_get(v,idx);
+ SQObjectPtr &newval = stack_get(v,-1);
+ SQObjectPtr *val = NULL;
+ if(SQ_FAILED(_getmemberbyhandle(v,self,handle,val))) {
+ return SQ_ERROR;
+ }
+ *val = newval;
+ v->Pop();
+ return SQ_OK;
+}
+
+SQRESULT sq_getbase(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_CLASS,o);
+ if(_class(*o)->_base)
+ v->Push(SQObjectPtr(_class(*o)->_base));
+ else
+ v->PushNull();
+ return SQ_OK;
+}
+
+SQRESULT sq_getclass(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_INSTANCE,o);
+ v->Push(SQObjectPtr(_instance(*o)->_class));
+ return SQ_OK;
+}
+
+SQRESULT sq_createinstance(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr *o = NULL;
+ _GETSAFE_OBJ(v, idx, OT_CLASS,o);
+ v->Push(_class(*o)->CreateInstance());
+ return SQ_OK;
+}
+
+void sq_weakref(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObject &o=stack_get(v,idx);
+ if(ISREFCOUNTED(type(o))) {
+ v->Push(_refcounted(o)->GetWeakRef(type(o)));
+ return;
+ }
+ v->Push(o);
+}
+
+SQRESULT sq_getweakrefval(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr &o = stack_get(v,idx);
+ if(type(o) != OT_WEAKREF) {
+ return sq_throwerror(v,_SC("the object must be a weakref"));
+ }
+ v->Push(_weakref(o)->_obj);
+ return SQ_OK;
+}
+
+SQRESULT sq_getdefaultdelegate(HSQUIRRELVM v,SQObjectType t)
+{
+ SQSharedState *ss = _ss(v);
+ switch(t) {
+ case OT_TABLE: v->Push(ss->_table_default_delegate); break;
+ case OT_ARRAY: v->Push(ss->_array_default_delegate); break;
+ case OT_STRING: v->Push(ss->_string_default_delegate); break;
+ case OT_INTEGER: case OT_FLOAT: v->Push(ss->_number_default_delegate); break;
+ case OT_GENERATOR: v->Push(ss->_generator_default_delegate); break;
+ case OT_CLOSURE: case OT_NATIVECLOSURE: v->Push(ss->_closure_default_delegate); break;
+ case OT_THREAD: v->Push(ss->_thread_default_delegate); break;
+ case OT_CLASS: v->Push(ss->_class_default_delegate); break;
+ case OT_INSTANCE: v->Push(ss->_instance_default_delegate); break;
+ case OT_WEAKREF: v->Push(ss->_weakref_default_delegate); break;
+ default: return sq_throwerror(v,_SC("the type doesn't have a default delegate"));
+ }
+ return SQ_OK;
+}
+
+SQRESULT sq_next(HSQUIRRELVM v,SQInteger idx)
+{
+ SQObjectPtr o=stack_get(v,idx),&refpos = stack_get(v,-1),realkey,val;
+ if(type(o) == OT_GENERATOR) {
+ return sq_throwerror(v,_SC("cannot iterate a generator"));
+ }
+ int faketojump;
+ if(!v->FOREACH_OP(o,realkey,val,refpos,0,666,faketojump))
+ return SQ_ERROR;
+ if(faketojump != 666) {
+ v->Push(realkey);
+ v->Push(val);
+ return SQ_OK;
+ }
+ return SQ_ERROR;
+}
+
+struct BufState{
+ const SQChar *buf;
+ SQInteger ptr;
+ SQInteger size;
+};
+
+SQInteger buf_lexfeed(SQUserPointer file)
+{
+ BufState *buf=(BufState*)file;
+ if(buf->size<(buf->ptr+1))
+ return 0;
+ return buf->buf[buf->ptr++];
+}
+
+SQRESULT sq_compilebuffer(HSQUIRRELVM v,const SQChar *s,SQInteger size,const SQChar *sourcename,SQBool raiseerror) {
+ BufState buf;
+ buf.buf = s;
+ buf.size = size;
+ buf.ptr = 0;
+ return sq_compile(v, buf_lexfeed, &buf, sourcename, raiseerror);
+}
+
+void sq_move(HSQUIRRELVM dest,HSQUIRRELVM src,SQInteger idx)
+{
+ dest->Push(stack_get(src,idx));
+}
+
+void sq_setprintfunc(HSQUIRRELVM v, SQPRINTFUNCTION printfunc,SQPRINTFUNCTION errfunc)
+{
+ _ss(v)->_printfunc = printfunc;
+ _ss(v)->_errorfunc = errfunc;
+}
+
+SQPRINTFUNCTION sq_getprintfunc(HSQUIRRELVM v)
+{
+ return _ss(v)->_printfunc;
+}
+
+SQPRINTFUNCTION sq_geterrorfunc(HSQUIRRELVM v)
+{
+ return _ss(v)->_errorfunc;
+}
+
+void *sq_malloc(SQUnsignedInteger size)
+{
+ return SQ_MALLOC(size);
+}
+
+void *sq_realloc(void* p,SQUnsignedInteger oldsize,SQUnsignedInteger newsize)
+{
+ return SQ_REALLOC(p,oldsize,newsize);
+}
+
+void sq_free(void *p,SQUnsignedInteger size)
+{
+ SQ_FREE(p,size);
+}
diff --git a/squirrel_3_0_1_stable/squirrel/sqarray.h b/squirrel_3_0_1_stable/squirrel/sqarray.h new file mode 100644 index 000000000..c3a57abcc --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqarray.h @@ -0,0 +1,94 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQARRAY_H_
+#define _SQARRAY_H_
+
+struct SQArray : public CHAINABLE_OBJ
+{
+private:
+ SQArray(SQSharedState *ss,SQInteger nsize){_values.resize(nsize); INIT_CHAIN();ADD_TO_CHAIN(&_ss(this)->_gc_chain,this);}
+ ~SQArray()
+ {
+ REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this);
+ }
+public:
+ static SQArray* Create(SQSharedState *ss,SQInteger nInitialSize){
+ SQArray *newarray=(SQArray*)SQ_MALLOC(sizeof(SQArray));
+ new (newarray) SQArray(ss,nInitialSize);
+ return newarray;
+ }
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+ SQObjectType GetType() {return OT_ARRAY;}
+#endif
+ void Finalize(){
+ _values.resize(0);
+ }
+ bool Get(const SQInteger nidx,SQObjectPtr &val)
+ {
+ if(nidx>=0 && nidx<(SQInteger)_values.size()){
+ SQObjectPtr &o = _values[nidx];
+ val = _realval(o);
+ return true;
+ }
+ else return false;
+ }
+ bool Set(const SQInteger nidx,const SQObjectPtr &val)
+ {
+ if(nidx>=0 && nidx<(SQInteger)_values.size()){
+ _values[nidx]=val;
+ return true;
+ }
+ else return false;
+ }
+ SQInteger Next(const SQObjectPtr &refpos,SQObjectPtr &outkey,SQObjectPtr &outval)
+ {
+ SQUnsignedInteger idx=TranslateIndex(refpos);
+ while(idx<_values.size()){
+ //first found
+ outkey=(SQInteger)idx;
+ SQObjectPtr &o = _values[idx];
+ outval = _realval(o);
+ //return idx for the next iteration
+ return ++idx;
+ }
+ //nothing to iterate anymore
+ return -1;
+ }
+ SQArray *Clone(){SQArray *anew=Create(_opt_ss(this),0); anew->_values.copy(_values); return anew; }
+ SQInteger Size() const {return _values.size();}
+ void Resize(SQInteger size)
+ {
+ SQObjectPtr _null;
+ Resize(size,_null);
+ }
+ void Resize(SQInteger size,SQObjectPtr &fill) { _values.resize(size,fill); ShrinkIfNeeded(); }
+ void Reserve(SQInteger size) { _values.reserve(size); }
+ void Append(const SQObject &o){_values.push_back(o);}
+ void Extend(const SQArray *a);
+ SQObjectPtr &Top(){return _values.top();}
+ void Pop(){_values.pop_back(); ShrinkIfNeeded(); }
+ bool Insert(SQInteger idx,const SQObject &val){
+ if(idx < 0 || idx > (SQInteger)_values.size())
+ return false;
+ _values.insert(idx,val);
+ return true;
+ }
+ void ShrinkIfNeeded() {
+ if(_values.size() <= _values.capacity()>>2) //shrink the array
+ _values.shrinktofit();
+ }
+ bool Remove(SQInteger idx){
+ if(idx < 0 || idx >= (SQInteger)_values.size())
+ return false;
+ _values.remove(idx);
+ ShrinkIfNeeded();
+ return true;
+ }
+ void Release()
+ {
+ sq_delete(this,SQArray);
+ }
+
+ SQObjectPtrVec _values;
+};
+#endif //_SQARRAY_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqbaselib.cpp b/squirrel_3_0_1_stable/squirrel/sqbaselib.cpp new file mode 100644 index 000000000..1e9ae1445 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqbaselib.cpp @@ -0,0 +1,1110 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#include "sqvm.h"
+#include "sqstring.h"
+#include "sqtable.h"
+#include "sqarray.h"
+#include "sqfuncproto.h"
+#include "sqclosure.h"
+#include "sqclass.h"
+#include <stdlib.h>
+#include <stdarg.h>
+#include <ctype.h>
+
+bool str2num(const SQChar *s,SQObjectPtr &res)
+{
+ SQChar *end;
+ if(scstrstr(s,_SC("."))){
+ SQFloat r = SQFloat(scstrtod(s,&end));
+ if(s == end) return false;
+ res = r;
+ return true;
+ }
+ else{
+ SQInteger r = SQInteger(scstrtol(s,&end,10));
+ if(s == end) return false;
+ res = r;
+ return true;
+ }
+}
+
+static SQInteger base_dummy(HSQUIRRELVM v)
+{
+ return 0;
+}
+
+#ifndef NO_GARBAGE_COLLECTOR
+static SQInteger base_collectgarbage(HSQUIRRELVM v)
+{
+ sq_pushinteger(v, sq_collectgarbage(v));
+ return 1;
+}
+static SQInteger base_resurectureachable(HSQUIRRELVM v)
+{
+ sq_resurrectunreachable(v);
+ return 1;
+}
+#endif
+
+static SQInteger base_getroottable(HSQUIRRELVM v)
+{
+ v->Push(v->_roottable);
+ return 1;
+}
+
+static SQInteger base_getconsttable(HSQUIRRELVM v)
+{
+ v->Push(_ss(v)->_consts);
+ return 1;
+}
+
+
+static SQInteger base_setroottable(HSQUIRRELVM v)
+{
+ SQObjectPtr o = v->_roottable;
+ if(SQ_FAILED(sq_setroottable(v))) return SQ_ERROR;
+ v->Push(o);
+ return 1;
+}
+
+static SQInteger base_setconsttable(HSQUIRRELVM v)
+{
+ SQObjectPtr o = _ss(v)->_consts;
+ if(SQ_FAILED(sq_setconsttable(v))) return SQ_ERROR;
+ v->Push(o);
+ return 1;
+}
+
+static SQInteger base_seterrorhandler(HSQUIRRELVM v)
+{
+ sq_seterrorhandler(v);
+ return 0;
+}
+
+static SQInteger base_setdebughook(HSQUIRRELVM v)
+{
+ sq_setdebughook(v);
+ return 0;
+}
+
+static SQInteger base_enabledebuginfo(HSQUIRRELVM v)
+{
+ SQObjectPtr &o=stack_get(v,2);
+
+ sq_enabledebuginfo(v,SQVM::IsFalse(o)?SQFalse:SQTrue);
+ return 0;
+}
+
+static SQInteger __getcallstackinfos(HSQUIRRELVM v,SQInteger level)
+{
+ SQStackInfos si;
+ SQInteger seq = 0;
+ const SQChar *name = NULL;
+
+ if (SQ_SUCCEEDED(sq_stackinfos(v, level, &si)))
+ {
+ const SQChar *fn = _SC("unknown");
+ const SQChar *src = _SC("unknown");
+ if(si.funcname)fn = si.funcname;
+ if(si.source)src = si.source;
+ sq_newtable(v);
+ sq_pushstring(v, _SC("func"), -1);
+ sq_pushstring(v, fn, -1);
+ sq_newslot(v, -3, SQFalse);
+ sq_pushstring(v, _SC("src"), -1);
+ sq_pushstring(v, src, -1);
+ sq_newslot(v, -3, SQFalse);
+ sq_pushstring(v, _SC("line"), -1);
+ sq_pushinteger(v, si.line);
+ sq_newslot(v, -3, SQFalse);
+ sq_pushstring(v, _SC("locals"), -1);
+ sq_newtable(v);
+ seq=0;
+ while ((name = sq_getlocal(v, level, seq))) {
+ sq_pushstring(v, name, -1);
+ sq_push(v, -2);
+ sq_newslot(v, -4, SQFalse);
+ sq_pop(v, 1);
+ seq++;
+ }
+ sq_newslot(v, -3, SQFalse);
+ return 1;
+ }
+
+ return 0;
+}
+static SQInteger base_getstackinfos(HSQUIRRELVM v)
+{
+ SQInteger level;
+ sq_getinteger(v, -1, &level);
+ return __getcallstackinfos(v,level);
+}
+
+static SQInteger base_assert(HSQUIRRELVM v)
+{
+ if(SQVM::IsFalse(stack_get(v,2))){
+ return sq_throwerror(v,_SC("assertion failed"));
+ }
+ return 0;
+}
+
+static SQInteger get_slice_params(HSQUIRRELVM v,SQInteger &sidx,SQInteger &eidx,SQObjectPtr &o)
+{
+ SQInteger top = sq_gettop(v);
+ sidx=0;
+ eidx=0;
+ o=stack_get(v,1);
+ SQObjectPtr &start=stack_get(v,2);
+ if(type(start)!=OT_NULL && sq_isnumeric(start)){
+ sidx=tointeger(start);
+ }
+ if(top>2){
+ SQObjectPtr &end=stack_get(v,3);
+ if(sq_isnumeric(end)){
+ eidx=tointeger(end);
+ }
+ }
+ else {
+ eidx = sq_getsize(v,1);
+ }
+ return 1;
+}
+
+static SQInteger base_print(HSQUIRRELVM v)
+{
+ const SQChar *str;
+ sq_tostring(v,2);
+ sq_getstring(v,-1,&str);
+ if(_ss(v)->_printfunc) _ss(v)->_printfunc(v,_SC("%s"),str);
+ return 0;
+}
+
+static SQInteger base_error(HSQUIRRELVM v)
+{
+ const SQChar *str;
+ sq_tostring(v,2);
+ sq_getstring(v,-1,&str);
+ if(_ss(v)->_errorfunc) _ss(v)->_errorfunc(v,_SC("%s"),str);
+ return 0;
+}
+
+static SQInteger base_compilestring(HSQUIRRELVM v)
+{
+ SQInteger nargs=sq_gettop(v);
+ const SQChar *src=NULL,*name=_SC("unnamedbuffer");
+ SQInteger size;
+ sq_getstring(v,2,&src);
+ size=sq_getsize(v,2);
+ if(nargs>2){
+ sq_getstring(v,3,&name);
+ }
+ if(SQ_SUCCEEDED(sq_compilebuffer(v,src,size,name,SQFalse)))
+ return 1;
+ else
+ return SQ_ERROR;
+}
+
+static SQInteger base_newthread(HSQUIRRELVM v)
+{
+ SQObjectPtr &func = stack_get(v,2);
+ SQInteger stksize = (_closure(func)->_function->_stacksize << 1) +2;
+ HSQUIRRELVM newv = sq_newthread(v, (stksize < MIN_STACK_OVERHEAD + 2)? MIN_STACK_OVERHEAD + 2 : stksize);
+ sq_move(newv,v,-2);
+ return 1;
+}
+
+static SQInteger base_suspend(HSQUIRRELVM v)
+{
+ return sq_suspendvm(v);
+}
+
+static SQInteger base_array(HSQUIRRELVM v)
+{
+ SQArray *a;
+ SQObject &size = stack_get(v,2);
+ if(sq_gettop(v) > 2) {
+ a = SQArray::Create(_ss(v),0);
+ a->Resize(tointeger(size),stack_get(v,3));
+ }
+ else {
+ a = SQArray::Create(_ss(v),tointeger(size));
+ }
+ v->Push(a);
+ return 1;
+}
+
+static SQInteger base_type(HSQUIRRELVM v)
+{
+ SQObjectPtr &o = stack_get(v,2);
+ v->Push(SQString::Create(_ss(v),GetTypeName(o),-1));
+ return 1;
+}
+
+static SQInteger base_callee(HSQUIRRELVM v)
+{
+ if(v->_callsstacksize > 1)
+ {
+ v->Push(v->_callsstack[v->_callsstacksize - 2]._closure);
+ return 1;
+ }
+ return sq_throwerror(v,_SC("no closure in the calls stack"));
+}
+
+static SQRegFunction base_funcs[]={
+ //generic
+ {_SC("seterrorhandler"),base_seterrorhandler,2, NULL},
+ {_SC("setdebughook"),base_setdebughook,2, NULL},
+ {_SC("enabledebuginfo"),base_enabledebuginfo,2, NULL},
+ {_SC("getstackinfos"),base_getstackinfos,2, _SC(".n")},
+ {_SC("getroottable"),base_getroottable,1, NULL},
+ {_SC("setroottable"),base_setroottable,2, NULL},
+ {_SC("getconsttable"),base_getconsttable,1, NULL},
+ {_SC("setconsttable"),base_setconsttable,2, NULL},
+ {_SC("assert"),base_assert,2, NULL},
+ {_SC("print"),base_print,2, NULL},
+ {_SC("error"),base_error,2, NULL},
+ {_SC("compilestring"),base_compilestring,-2, _SC(".ss")},
+ {_SC("newthread"),base_newthread,2, _SC(".c")},
+ {_SC("suspend"),base_suspend,-1, NULL},
+ {_SC("array"),base_array,-2, _SC(".n")},
+ {_SC("type"),base_type,2, NULL},
+ {_SC("callee"),base_callee,0,NULL},
+ {_SC("dummy"),base_dummy,0,NULL},
+#ifndef NO_GARBAGE_COLLECTOR
+ {_SC("collectgarbage"),base_collectgarbage,0, NULL},
+ {_SC("resurrectunreachable"),base_resurectureachable,0, NULL},
+#endif
+ {0,0}
+};
+
+void sq_base_register(HSQUIRRELVM v)
+{
+ SQInteger i=0;
+ sq_pushroottable(v);
+ while(base_funcs[i].name!=0) {
+ sq_pushstring(v,base_funcs[i].name,-1);
+ sq_newclosure(v,base_funcs[i].f,0);
+ sq_setnativeclosurename(v,-1,base_funcs[i].name);
+ sq_setparamscheck(v,base_funcs[i].nparamscheck,base_funcs[i].typemask);
+ sq_newslot(v,-3, SQFalse);
+ i++;
+ }
+
+ sq_pushstring(v,_SC("_versionnumber_"),-1);
+ sq_pushinteger(v,SQUIRREL_VERSION_NUMBER);
+ sq_newslot(v,-3, SQFalse);
+ sq_pushstring(v,_SC("_version_"),-1);
+ sq_pushstring(v,SQUIRREL_VERSION,-1);
+ sq_newslot(v,-3, SQFalse);
+ sq_pushstring(v,_SC("_charsize_"),-1);
+ sq_pushinteger(v,sizeof(SQChar));
+ sq_newslot(v,-3, SQFalse);
+ sq_pushstring(v,_SC("_intsize_"),-1);
+ sq_pushinteger(v,sizeof(SQInteger));
+ sq_newslot(v,-3, SQFalse);
+ sq_pushstring(v,_SC("_floatsize_"),-1);
+ sq_pushinteger(v,sizeof(SQFloat));
+ sq_newslot(v,-3, SQFalse);
+ sq_pop(v,1);
+}
+
+static SQInteger default_delegate_len(HSQUIRRELVM v)
+{
+ v->Push(SQInteger(sq_getsize(v,1)));
+ return 1;
+}
+
+static SQInteger default_delegate_tofloat(HSQUIRRELVM v)
+{
+ SQObjectPtr &o=stack_get(v,1);
+ switch(type(o)){
+ case OT_STRING:{
+ SQObjectPtr res;
+ if(str2num(_stringval(o),res)){
+ v->Push(SQObjectPtr(tofloat(res)));
+ break;
+ }}
+ return sq_throwerror(v, _SC("cannot convert the string"));
+ break;
+ case OT_INTEGER:case OT_FLOAT:
+ v->Push(SQObjectPtr(tofloat(o)));
+ break;
+ case OT_BOOL:
+ v->Push(SQObjectPtr((SQFloat)(_integer(o)?1:0)));
+ break;
+ default:
+ v->PushNull();
+ break;
+ }
+ return 1;
+}
+
+static SQInteger default_delegate_tointeger(HSQUIRRELVM v)
+{
+ SQObjectPtr &o=stack_get(v,1);
+ switch(type(o)){
+ case OT_STRING:{
+ SQObjectPtr res;
+ if(str2num(_stringval(o),res)){
+ v->Push(SQObjectPtr(tointeger(res)));
+ break;
+ }}
+ return sq_throwerror(v, _SC("cannot convert the string"));
+ break;
+ case OT_INTEGER:case OT_FLOAT:
+ v->Push(SQObjectPtr(tointeger(o)));
+ break;
+ case OT_BOOL:
+ v->Push(SQObjectPtr(_integer(o)?(SQInteger)1:(SQInteger)0));
+ break;
+ default:
+ v->PushNull();
+ break;
+ }
+ return 1;
+}
+
+static SQInteger default_delegate_tostring(HSQUIRRELVM v)
+{
+ sq_tostring(v,1);
+ return 1;
+}
+
+static SQInteger obj_delegate_weakref(HSQUIRRELVM v)
+{
+ sq_weakref(v,1);
+ return 1;
+}
+
+static SQInteger obj_clear(HSQUIRRELVM v)
+{
+ return sq_clear(v,-1);
+}
+
+
+static SQInteger number_delegate_tochar(HSQUIRRELVM v)
+{
+ SQObject &o=stack_get(v,1);
+ SQChar c = (SQChar)tointeger(o);
+ v->Push(SQString::Create(_ss(v),(const SQChar *)&c,1));
+ return 1;
+}
+
+
+
+/////////////////////////////////////////////////////////////////
+//TABLE DEFAULT DELEGATE
+
+static SQInteger table_rawdelete(HSQUIRRELVM v)
+{
+ if(SQ_FAILED(sq_rawdeleteslot(v,1,SQTrue)))
+ return SQ_ERROR;
+ return 1;
+}
+
+
+static SQInteger container_rawexists(HSQUIRRELVM v)
+{
+ if(SQ_SUCCEEDED(sq_rawget(v,-2))) {
+ sq_pushbool(v,SQTrue);
+ return 1;
+ }
+ sq_pushbool(v,SQFalse);
+ return 1;
+}
+
+static SQInteger container_rawset(HSQUIRRELVM v)
+{
+ return sq_rawset(v,-3);
+}
+
+
+static SQInteger container_rawget(HSQUIRRELVM v)
+{
+ return SQ_SUCCEEDED(sq_rawget(v,-2))?1:SQ_ERROR;
+}
+
+static SQInteger table_setdelegate(HSQUIRRELVM v)
+{
+ if(SQ_FAILED(sq_setdelegate(v,-2)))
+ return SQ_ERROR;
+ sq_push(v,-1); // -1 because sq_setdelegate pops 1
+ return 1;
+}
+
+static SQInteger table_getdelegate(HSQUIRRELVM v)
+{
+ return SQ_SUCCEEDED(sq_getdelegate(v,-1))?1:SQ_ERROR;
+}
+
+SQRegFunction SQSharedState::_table_default_delegate_funcz[]={
+ {_SC("len"),default_delegate_len,1, _SC("t")},
+ {_SC("rawget"),container_rawget,2, _SC("t")},
+ {_SC("rawset"),container_rawset,3, _SC("t")},
+ {_SC("rawdelete"),table_rawdelete,2, _SC("t")},
+ {_SC("rawin"),container_rawexists,2, _SC("t")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {_SC("clear"),obj_clear,1, _SC(".")},
+ {_SC("setdelegate"),table_setdelegate,2, _SC(".t|o")},
+ {_SC("getdelegate"),table_getdelegate,1, _SC(".")},
+ {0,0}
+};
+
+//ARRAY DEFAULT DELEGATE///////////////////////////////////////
+
+static SQInteger array_append(HSQUIRRELVM v)
+{
+ return sq_arrayappend(v,-2);
+}
+
+static SQInteger array_extend(HSQUIRRELVM v)
+{
+ _array(stack_get(v,1))->Extend(_array(stack_get(v,2)));
+ return 0;
+}
+
+static SQInteger array_reverse(HSQUIRRELVM v)
+{
+ return sq_arrayreverse(v,-1);
+}
+
+static SQInteger array_pop(HSQUIRRELVM v)
+{
+ return SQ_SUCCEEDED(sq_arraypop(v,1,SQTrue))?1:SQ_ERROR;
+}
+
+static SQInteger array_top(HSQUIRRELVM v)
+{
+ SQObject &o=stack_get(v,1);
+ if(_array(o)->Size()>0){
+ v->Push(_array(o)->Top());
+ return 1;
+ }
+ else return sq_throwerror(v,_SC("top() on a empty array"));
+}
+
+static SQInteger array_insert(HSQUIRRELVM v)
+{
+ SQObject &o=stack_get(v,1);
+ SQObject &idx=stack_get(v,2);
+ SQObject &val=stack_get(v,3);
+ if(!_array(o)->Insert(tointeger(idx),val))
+ return sq_throwerror(v,_SC("index out of range"));
+ return 0;
+}
+
+static SQInteger array_remove(HSQUIRRELVM v)
+{
+ SQObject &o = stack_get(v, 1);
+ SQObject &idx = stack_get(v, 2);
+ if(!sq_isnumeric(idx)) return sq_throwerror(v, _SC("wrong type"));
+ SQObjectPtr val;
+ if(_array(o)->Get(tointeger(idx), val)) {
+ _array(o)->Remove(tointeger(idx));
+ v->Push(val);
+ return 1;
+ }
+ return sq_throwerror(v, _SC("idx out of range"));
+}
+
+static SQInteger array_resize(HSQUIRRELVM v)
+{
+ SQObject &o = stack_get(v, 1);
+ SQObject &nsize = stack_get(v, 2);
+ SQObjectPtr fill;
+ if(sq_isnumeric(nsize)) {
+ if(sq_gettop(v) > 2)
+ fill = stack_get(v, 3);
+ _array(o)->Resize(tointeger(nsize),fill);
+ return 0;
+ }
+ return sq_throwerror(v, _SC("size must be a number"));
+}
+
+static SQInteger __map_array(SQArray *dest,SQArray *src,HSQUIRRELVM v) {
+ SQObjectPtr temp;
+ SQInteger size = src->Size();
+ for(SQInteger n = 0; n < size; n++) {
+ src->Get(n,temp);
+ v->Push(src);
+ v->Push(temp);
+ if(SQ_FAILED(sq_call(v,2,SQTrue,SQFalse))) {
+ return SQ_ERROR;
+ }
+ dest->Set(n,v->GetUp(-1));
+ v->Pop();
+ }
+ return 0;
+}
+
+static SQInteger array_map(HSQUIRRELVM v)
+{
+ SQObject &o = stack_get(v,1);
+ SQInteger size = _array(o)->Size();
+ SQObjectPtr ret = SQArray::Create(_ss(v),size);
+ if(SQ_FAILED(__map_array(_array(ret),_array(o),v)))
+ return SQ_ERROR;
+ v->Push(ret);
+ return 1;
+}
+
+static SQInteger array_apply(HSQUIRRELVM v)
+{
+ SQObject &o = stack_get(v,1);
+ if(SQ_FAILED(__map_array(_array(o),_array(o),v)))
+ return SQ_ERROR;
+ return 0;
+}
+
+static SQInteger array_reduce(HSQUIRRELVM v)
+{
+ SQObject &o = stack_get(v,1);
+ SQArray *a = _array(o);
+ SQInteger size = a->Size();
+ if(size == 0) {
+ return 0;
+ }
+ SQObjectPtr res;
+ a->Get(0,res);
+ if(size > 1) {
+ SQObjectPtr other;
+ for(SQInteger n = 1; n < size; n++) {
+ a->Get(n,other);
+ v->Push(o);
+ v->Push(res);
+ v->Push(other);
+ if(SQ_FAILED(sq_call(v,3,SQTrue,SQFalse))) {
+ return SQ_ERROR;
+ }
+ res = v->GetUp(-1);
+ v->Pop();
+ }
+ }
+ v->Push(res);
+ return 1;
+}
+
+static SQInteger array_filter(HSQUIRRELVM v)
+{
+ SQObject &o = stack_get(v,1);
+ SQArray *a = _array(o);
+ SQObjectPtr ret = SQArray::Create(_ss(v),0);
+ SQInteger size = a->Size();
+ SQObjectPtr val;
+ for(SQInteger n = 0; n < size; n++) {
+ a->Get(n,val);
+ v->Push(o);
+ v->Push(n);
+ v->Push(val);
+ if(SQ_FAILED(sq_call(v,3,SQTrue,SQFalse))) {
+ return SQ_ERROR;
+ }
+ if(!SQVM::IsFalse(v->GetUp(-1))) {
+ _array(ret)->Append(val);
+ }
+ v->Pop();
+ }
+ v->Push(ret);
+ return 1;
+}
+
+static SQInteger array_find(HSQUIRRELVM v)
+{
+ SQObject &o = stack_get(v,1);
+ SQObjectPtr &val = stack_get(v,2);
+ SQArray *a = _array(o);
+ SQInteger size = a->Size();
+ SQObjectPtr temp;
+ for(SQInteger n = 0; n < size; n++) {
+ bool res = false;
+ a->Get(n,temp);
+ if(SQVM::IsEqual(temp,val,res) && res) {
+ v->Push(n);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+//QSORT ala Sedgewick
+bool _qsort_compare(HSQUIRRELVM v,SQObjectPtr &arr,SQObjectPtr &a,SQObjectPtr &b,SQInteger func,SQInteger &ret)
+{
+ if(func < 0) {
+ if(!v->ObjCmp(a,b,ret)) return false;
+ }
+ else {
+ SQInteger top = sq_gettop(v);
+ sq_push(v, func);
+ sq_pushroottable(v);
+ v->Push(a);
+ v->Push(b);
+ if(SQ_FAILED(sq_call(v, 3, SQTrue, SQFalse))) {
+ if(!sq_isstring( v->_lasterror))
+ v->Raise_Error(_SC("compare func failed"));
+ return false;
+ }
+ sq_getinteger(v, -1, &ret);
+ sq_settop(v, top);
+ return true;
+ }
+ return true;
+}
+//QSORT ala Sedgewick
+bool _qsort(HSQUIRRELVM v,SQObjectPtr &arr, SQInteger l, SQInteger r,SQInteger func)
+{
+ SQInteger i, j;
+ SQArray *a=_array(arr);
+ SQObjectPtr pivot,t;
+ if( l < r ){
+ pivot = a->_values[l];
+ i = l; j = r+1;
+ while(1){
+ SQInteger ret;
+ do {
+ ++i;
+ if(i > r) break;
+ if(!_qsort_compare(v,arr,a->_values[i],pivot,func,ret))
+ return false;
+ } while( ret <= 0);
+ do {
+ --j;
+ if ( j < 0 ) {
+ v->Raise_Error( _SC("Invalid qsort, probably compare function defect") );
+ return false;
+ }
+ if(!_qsort_compare(v,arr,a->_values[j],pivot,func,ret))
+ return false;
+ }
+ while( ret > 0 );
+ if( i >= j ) break;
+ t = a->_values[i]; a->_values[i] = a->_values[j]; a->_values[j] = t;
+ }
+ t = a->_values[l]; a->_values[l] = a->_values[j]; a->_values[j] = t;
+ if(!_qsort( v, arr, l, j-1,func)) return false;
+ if(!_qsort( v, arr, j+1, r,func)) return false;
+ }
+ return true;
+}
+
+static SQInteger array_sort(HSQUIRRELVM v)
+{
+ SQInteger func = -1;
+ SQObjectPtr &o = stack_get(v,1);
+ //SQObject &funcobj = stack_get(v,2);
+ if(_array(o)->Size() > 1) {
+ if(sq_gettop(v) == 2 /*&& type(funcobj) == OT_CLOSURE || type(funcobj) == OT_NATIVECLOSURE*/) func = 2;
+ if(!_qsort(v, o, 0, _array(o)->Size()-1, func))
+ return SQ_ERROR;
+
+ }
+ return 0;
+}
+static SQInteger array_slice(HSQUIRRELVM v)
+{
+ SQInteger sidx,eidx;
+ SQObjectPtr o;
+ if(get_slice_params(v,sidx,eidx,o)==-1)return -1;
+ SQInteger alen = _array(o)->Size();
+ if(sidx < 0)sidx = alen + sidx;
+ if(eidx < 0)eidx = alen + eidx;
+ if(eidx < sidx)return sq_throwerror(v,_SC("wrong indexes"));
+ if(eidx > alen)return sq_throwerror(v,_SC("slice out of range"));
+ SQArray *arr=SQArray::Create(_ss(v),eidx-sidx);
+ SQObjectPtr t;
+ SQInteger count=0;
+ for(SQInteger i=sidx;i<eidx;i++){
+ _array(o)->Get(i,t);
+ arr->Set(count++,t);
+ }
+ v->Push(arr);
+ return 1;
+
+}
+
+SQRegFunction SQSharedState::_array_default_delegate_funcz[]={
+ {_SC("len"),default_delegate_len,1, _SC("a")},
+ {_SC("append"),array_append,2, _SC("a")},
+ {_SC("extend"),array_extend,2, _SC("aa")},
+ {_SC("push"),array_append,2, _SC("a")},
+ {_SC("pop"),array_pop,1, _SC("a")},
+ {_SC("top"),array_top,1, _SC("a")},
+ {_SC("insert"),array_insert,3, _SC("an")},
+ {_SC("remove"),array_remove,2, _SC("an")},
+ {_SC("resize"),array_resize,-2, _SC("an")},
+ {_SC("reverse"),array_reverse,1, _SC("a")},
+ {_SC("sort"),array_sort,-1, _SC("ac")},
+ {_SC("slice"),array_slice,-1, _SC("ann")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {_SC("clear"),obj_clear,1, _SC(".")},
+ {_SC("map"),array_map,2, _SC("ac")},
+ {_SC("apply"),array_apply,2, _SC("ac")},
+ {_SC("reduce"),array_reduce,2, _SC("ac")},
+ {_SC("filter"),array_filter,2, _SC("ac")},
+ {_SC("find"),array_find,2, _SC("a.")},
+ {0,0}
+};
+
+//STRING DEFAULT DELEGATE//////////////////////////
+static SQInteger string_slice(HSQUIRRELVM v)
+{
+ SQInteger sidx,eidx;
+ SQObjectPtr o;
+ if(SQ_FAILED(get_slice_params(v,sidx,eidx,o)))return -1;
+ SQInteger slen = _string(o)->_len;
+ if(sidx < 0)sidx = slen + sidx;
+ if(eidx < 0)eidx = slen + eidx;
+ if(eidx < sidx) return sq_throwerror(v,_SC("wrong indexes"));
+ if(eidx > slen) return sq_throwerror(v,_SC("slice out of range"));
+ v->Push(SQString::Create(_ss(v),&_stringval(o)[sidx],eidx-sidx));
+ return 1;
+}
+
+static SQInteger string_find(HSQUIRRELVM v)
+{
+ SQInteger top,start_idx=0;
+ const SQChar *str,*substr,*ret;
+ if(((top=sq_gettop(v))>1) && SQ_SUCCEEDED(sq_getstring(v,1,&str)) && SQ_SUCCEEDED(sq_getstring(v,2,&substr))){
+ if(top>2)sq_getinteger(v,3,&start_idx);
+ if((sq_getsize(v,1)>start_idx) && (start_idx>=0)){
+ ret=scstrstr(&str[start_idx],substr);
+ if(ret){
+ sq_pushinteger(v,(SQInteger)(ret-str));
+ return 1;
+ }
+ }
+ return 0;
+ }
+ return sq_throwerror(v,_SC("invalid param"));
+}
+
+#define STRING_TOFUNCZ(func) static SQInteger string_##func(HSQUIRRELVM v) \
+{ \
+ SQObject str=stack_get(v,1); \
+ SQInteger len=_string(str)->_len; \
+ const SQChar *sThis=_stringval(str); \
+ SQChar *sNew=(_ss(v)->GetScratchPad(rsl(len))); \
+ for(SQInteger i=0;i<len;i++) sNew[i]=func(sThis[i]); \
+ v->Push(SQString::Create(_ss(v),sNew,len)); \
+ return 1; \
+}
+
+
+STRING_TOFUNCZ(tolower)
+STRING_TOFUNCZ(toupper)
+
+SQRegFunction SQSharedState::_string_default_delegate_funcz[]={
+ {_SC("len"),default_delegate_len,1, _SC("s")},
+ {_SC("tointeger"),default_delegate_tointeger,1, _SC("s")},
+ {_SC("tofloat"),default_delegate_tofloat,1, _SC("s")},
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {_SC("slice"),string_slice,-1, _SC(" s n n")},
+ {_SC("find"),string_find,-2, _SC("s s n ")},
+ {_SC("tolower"),string_tolower,1, _SC("s")},
+ {_SC("toupper"),string_toupper,1, _SC("s")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {0,0}
+};
+
+//INTEGER DEFAULT DELEGATE//////////////////////////
+SQRegFunction SQSharedState::_number_default_delegate_funcz[]={
+ {_SC("tointeger"),default_delegate_tointeger,1, _SC("n|b")},
+ {_SC("tofloat"),default_delegate_tofloat,1, _SC("n|b")},
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {_SC("tochar"),number_delegate_tochar,1, _SC("n|b")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {0,0}
+};
+
+//CLOSURE DEFAULT DELEGATE//////////////////////////
+static SQInteger closure_pcall(HSQUIRRELVM v)
+{
+ return SQ_SUCCEEDED(sq_call(v,sq_gettop(v)-1,SQTrue,SQFalse))?1:SQ_ERROR;
+}
+
+static SQInteger closure_call(HSQUIRRELVM v)
+{
+ return SQ_SUCCEEDED(sq_call(v,sq_gettop(v)-1,SQTrue,SQTrue))?1:SQ_ERROR;
+}
+
+static SQInteger _closure_acall(HSQUIRRELVM v,SQBool raiseerror)
+{
+ SQArray *aparams=_array(stack_get(v,2));
+ SQInteger nparams=aparams->Size();
+ v->Push(stack_get(v,1));
+ for(SQInteger i=0;i<nparams;i++)v->Push(aparams->_values[i]);
+ return SQ_SUCCEEDED(sq_call(v,nparams,SQTrue,raiseerror))?1:SQ_ERROR;
+}
+
+static SQInteger closure_acall(HSQUIRRELVM v)
+{
+ return _closure_acall(v,SQTrue);
+}
+
+static SQInteger closure_pacall(HSQUIRRELVM v)
+{
+ return _closure_acall(v,SQFalse);
+}
+
+static SQInteger closure_bindenv(HSQUIRRELVM v)
+{
+ if(SQ_FAILED(sq_bindenv(v,1)))
+ return SQ_ERROR;
+ return 1;
+}
+
+static SQInteger closure_getinfos(HSQUIRRELVM v) {
+ SQObject o = stack_get(v,1);
+ SQTable *res = SQTable::Create(_ss(v),4);
+ if(type(o) == OT_CLOSURE) {
+ SQFunctionProto *f = _closure(o)->_function;
+ SQInteger nparams = f->_nparameters + (f->_varparams?1:0);
+ SQObjectPtr params = SQArray::Create(_ss(v),nparams);
+ for(SQInteger n = 0; n<f->_nparameters; n++) {
+ _array(params)->Set((SQInteger)n,f->_parameters[n]);
+ }
+ if(f->_varparams) {
+ _array(params)->Set(nparams-1,SQString::Create(_ss(v),_SC("..."),-1));
+ }
+ res->NewSlot(SQString::Create(_ss(v),_SC("native"),-1),false);
+ res->NewSlot(SQString::Create(_ss(v),_SC("name"),-1),f->_name);
+ res->NewSlot(SQString::Create(_ss(v),_SC("src"),-1),f->_sourcename);
+ res->NewSlot(SQString::Create(_ss(v),_SC("parameters"),-1),params);
+ res->NewSlot(SQString::Create(_ss(v),_SC("varargs"),-1),f->_varparams);
+ }
+ else { //OT_NATIVECLOSURE
+ SQNativeClosure *nc = _nativeclosure(o);
+ res->NewSlot(SQString::Create(_ss(v),_SC("native"),-1),true);
+ res->NewSlot(SQString::Create(_ss(v),_SC("name"),-1),nc->_name);
+ res->NewSlot(SQString::Create(_ss(v),_SC("paramscheck"),-1),nc->_nparamscheck);
+ SQObjectPtr typecheck;
+ if(nc->_typecheck.size() > 0) {
+ typecheck =
+ SQArray::Create(_ss(v), nc->_typecheck.size());
+ for(SQUnsignedInteger n = 0; n<nc->_typecheck.size(); n++) {
+ _array(typecheck)->Set((SQInteger)n,nc->_typecheck[n]);
+ }
+ }
+ res->NewSlot(SQString::Create(_ss(v),_SC("typecheck"),-1),typecheck);
+ }
+ v->Push(res);
+ return 1;
+}
+
+
+SQRegFunction SQSharedState::_closure_default_delegate_funcz[]={
+ {_SC("call"),closure_call,-1, _SC("c")},
+ {_SC("pcall"),closure_pcall,-1, _SC("c")},
+ {_SC("acall"),closure_acall,2, _SC("ca")},
+ {_SC("pacall"),closure_pacall,2, _SC("ca")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {_SC("bindenv"),closure_bindenv,2, _SC("c x|y|t")},
+ {_SC("getinfos"),closure_getinfos,1, _SC("c")},
+ {0,0}
+};
+
+//GENERATOR DEFAULT DELEGATE
+static SQInteger generator_getstatus(HSQUIRRELVM v)
+{
+ SQObject &o=stack_get(v,1);
+ switch(_generator(o)->_state){
+ case SQGenerator::eSuspended:v->Push(SQString::Create(_ss(v),_SC("suspended")));break;
+ case SQGenerator::eRunning:v->Push(SQString::Create(_ss(v),_SC("running")));break;
+ case SQGenerator::eDead:v->Push(SQString::Create(_ss(v),_SC("dead")));break;
+ }
+ return 1;
+}
+
+SQRegFunction SQSharedState::_generator_default_delegate_funcz[]={
+ {_SC("getstatus"),generator_getstatus,1, _SC("g")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {0,0}
+};
+
+//THREAD DEFAULT DELEGATE
+static SQInteger thread_call(HSQUIRRELVM v)
+{
+ SQObjectPtr o = stack_get(v,1);
+ if(type(o) == OT_THREAD) {
+ SQInteger nparams = sq_gettop(v);
+ _thread(o)->Push(_thread(o)->_roottable);
+ for(SQInteger i = 2; i<(nparams+1); i++)
+ sq_move(_thread(o),v,i);
+ if(SQ_SUCCEEDED(sq_call(_thread(o),nparams,SQTrue,SQFalse))) {
+ sq_move(v,_thread(o),-1);
+ sq_pop(_thread(o),1);
+ return 1;
+ }
+ v->_lasterror = _thread(o)->_lasterror;
+ return SQ_ERROR;
+ }
+ return sq_throwerror(v,_SC("wrong parameter"));
+}
+
+static SQInteger thread_wakeup(HSQUIRRELVM v)
+{
+ SQObjectPtr o = stack_get(v,1);
+ if(type(o) == OT_THREAD) {
+ SQVM *thread = _thread(o);
+ SQInteger state = sq_getvmstate(thread);
+ if(state != SQ_VMSTATE_SUSPENDED) {
+ switch(state) {
+ case SQ_VMSTATE_IDLE:
+ return sq_throwerror(v,_SC("cannot wakeup a idle thread"));
+ break;
+ case SQ_VMSTATE_RUNNING:
+ return sq_throwerror(v,_SC("cannot wakeup a running thread"));
+ break;
+ }
+ }
+
+ SQInteger wakeupret = sq_gettop(v)>1?1:0;
+ if(wakeupret) {
+ sq_move(thread,v,2);
+ }
+ if(SQ_SUCCEEDED(sq_wakeupvm(thread,wakeupret,SQTrue,SQTrue,SQFalse))) {
+ sq_move(v,thread,-1);
+ sq_pop(thread,1); //pop retval
+ if(sq_getvmstate(thread) == SQ_VMSTATE_IDLE) {
+ sq_settop(thread,1); //pop roottable
+ }
+ return 1;
+ }
+ sq_settop(thread,1);
+ v->_lasterror = thread->_lasterror;
+ return SQ_ERROR;
+ }
+ return sq_throwerror(v,_SC("wrong parameter"));
+}
+
+static SQInteger thread_getstatus(HSQUIRRELVM v)
+{
+ SQObjectPtr &o = stack_get(v,1);
+ switch(sq_getvmstate(_thread(o))) {
+ case SQ_VMSTATE_IDLE:
+ sq_pushstring(v,_SC("idle"),-1);
+ break;
+ case SQ_VMSTATE_RUNNING:
+ sq_pushstring(v,_SC("running"),-1);
+ break;
+ case SQ_VMSTATE_SUSPENDED:
+ sq_pushstring(v,_SC("suspended"),-1);
+ break;
+ default:
+ return sq_throwerror(v,_SC("internal VM error"));
+ }
+ return 1;
+}
+
+static SQInteger thread_getstackinfos(HSQUIRRELVM v)
+{
+ SQObjectPtr o = stack_get(v,1);
+ if(type(o) == OT_THREAD) {
+ SQVM *thread = _thread(o);
+ SQInteger threadtop = sq_gettop(thread);
+ SQInteger level;
+ sq_getinteger(v,-1,&level);
+ SQRESULT res = __getcallstackinfos(thread,level);
+ if(SQ_FAILED(res))
+ {
+ sq_settop(thread,threadtop);
+ if(type(thread->_lasterror) == OT_STRING) {
+ sq_throwerror(v,_stringval(thread->_lasterror));
+ }
+ else {
+ sq_throwerror(v,_SC("unknown error"));
+ }
+ }
+ if(res > 0) {
+ //some result
+ sq_move(v,thread,-1);
+ sq_settop(thread,threadtop);
+ return 1;
+ }
+ //no result
+ sq_settop(thread,threadtop);
+ return 0;
+
+ }
+ return sq_throwerror(v,_SC("wrong parameter"));
+}
+
+SQRegFunction SQSharedState::_thread_default_delegate_funcz[] = {
+ {_SC("call"), thread_call, -1, _SC("v")},
+ {_SC("wakeup"), thread_wakeup, -1, _SC("v")},
+ {_SC("getstatus"), thread_getstatus, 1, _SC("v")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {_SC("getstackinfos"),thread_getstackinfos,2, _SC("vn")},
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {0,0},
+};
+
+static SQInteger class_getattributes(HSQUIRRELVM v)
+{
+ return SQ_SUCCEEDED(sq_getattributes(v,-2))?1:SQ_ERROR;
+}
+
+static SQInteger class_setattributes(HSQUIRRELVM v)
+{
+ return SQ_SUCCEEDED(sq_setattributes(v,-3))?1:SQ_ERROR;
+}
+
+static SQInteger class_instance(HSQUIRRELVM v)
+{
+ return SQ_SUCCEEDED(sq_createinstance(v,-1))?1:SQ_ERROR;
+}
+
+static SQInteger class_getbase(HSQUIRRELVM v)
+{
+ return SQ_SUCCEEDED(sq_getbase(v,-1))?1:SQ_ERROR;
+}
+
+SQRegFunction SQSharedState::_class_default_delegate_funcz[] = {
+ {_SC("getattributes"), class_getattributes, 2, _SC("y.")},
+ {_SC("setattributes"), class_setattributes, 3, _SC("y..")},
+ {_SC("rawget"),container_rawget,2, _SC("y")},
+ {_SC("rawset"),container_rawset,3, _SC("y")},
+ {_SC("rawin"),container_rawexists,2, _SC("y")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {_SC("instance"),class_instance,1, _SC("y")},
+ {_SC("getbase"),class_getbase,1, _SC("y")},
+ {0,0}
+};
+
+static SQInteger instance_getclass(HSQUIRRELVM v)
+{
+ if(SQ_SUCCEEDED(sq_getclass(v,1)))
+ return 1;
+ return SQ_ERROR;
+}
+
+SQRegFunction SQSharedState::_instance_default_delegate_funcz[] = {
+ {_SC("getclass"), instance_getclass, 1, _SC("x")},
+ {_SC("rawget"),container_rawget,2, _SC("x")},
+ {_SC("rawset"),container_rawset,3, _SC("x")},
+ {_SC("rawin"),container_rawexists,2, _SC("x")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {0,0}
+};
+
+static SQInteger weakref_ref(HSQUIRRELVM v)
+{
+ if(SQ_FAILED(sq_getweakrefval(v,1)))
+ return SQ_ERROR;
+ return 1;
+}
+
+SQRegFunction SQSharedState::_weakref_default_delegate_funcz[] = {
+ {_SC("ref"),weakref_ref,1, _SC("r")},
+ {_SC("weakref"),obj_delegate_weakref,1, NULL },
+ {_SC("tostring"),default_delegate_tostring,1, _SC(".")},
+ {0,0}
+};
+
diff --git a/squirrel_3_0_1_stable/squirrel/sqclass.cpp b/squirrel_3_0_1_stable/squirrel/sqclass.cpp new file mode 100644 index 000000000..1f26cc92f --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqclass.cpp @@ -0,0 +1,213 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#include "sqvm.h"
+#include "sqtable.h"
+#include "sqclass.h"
+#include "sqfuncproto.h"
+#include "sqclosure.h"
+
+
+
+SQClass::SQClass(SQSharedState *ss,SQClass *base)
+{
+ _base = base;
+ _typetag = 0;
+ _hook = NULL;
+ _udsize = 0;
+ _locked = false;
+ _constructoridx = -1;
+ if(_base) {
+ _constructoridx = _base->_constructoridx;
+ _udsize = _base->_udsize;
+ _defaultvalues.copy(base->_defaultvalues);
+ _methods.copy(base->_methods);
+ _COPY_VECTOR(_metamethods,base->_metamethods,MT_LAST);
+ __ObjAddRef(_base);
+ }
+ _members = base?base->_members->Clone() : SQTable::Create(ss,0);
+ __ObjAddRef(_members);
+
+ INIT_CHAIN();
+ ADD_TO_CHAIN(&_sharedstate->_gc_chain, this);
+}
+
+void SQClass::Finalize() {
+ _attributes.Null();
+ _defaultvalues.resize(0);
+ _methods.resize(0);
+ _NULL_SQOBJECT_VECTOR(_metamethods,MT_LAST);
+ __ObjRelease(_members);
+ if(_base) {
+ __ObjRelease(_base);
+ }
+}
+
+SQClass::~SQClass()
+{
+ REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
+ Finalize();
+}
+
+bool SQClass::NewSlot(SQSharedState *ss,const SQObjectPtr &key,const SQObjectPtr &val,bool bstatic)
+{
+ SQObjectPtr temp;
+ bool belongs_to_static_table = type(val) == OT_CLOSURE || type(val) == OT_NATIVECLOSURE || bstatic;
+ if(_locked && !belongs_to_static_table)
+ return false; //the class already has an instance so cannot be modified
+ if(_members->Get(key,temp) && _isfield(temp)) //overrides the default value
+ {
+ _defaultvalues[_member_idx(temp)].val = val;
+ return true;
+ }
+ if(belongs_to_static_table) {
+ SQInteger mmidx;
+ if((type(val) == OT_CLOSURE || type(val) == OT_NATIVECLOSURE) &&
+ (mmidx = ss->GetMetaMethodIdxByName(key)) != -1) {
+ _metamethods[mmidx] = val;
+ }
+ else {
+ SQObjectPtr theval = val;
+ if(_base && type(val) == OT_CLOSURE) {
+ theval = _closure(val)->Clone();
+ _closure(theval)->_base = _base;
+ __ObjAddRef(_base); //ref for the closure
+ }
+ if(type(temp) == OT_NULL) {
+ bool isconstructor;
+ SQVM::IsEqual(ss->_constructoridx, key, isconstructor);
+ if(isconstructor) {
+ _constructoridx = (SQInteger)_methods.size();
+ }
+ SQClassMember m;
+ m.val = theval;
+ _members->NewSlot(key,SQObjectPtr(_make_method_idx(_methods.size())));
+ _methods.push_back(m);
+ }
+ else {
+ _methods[_member_idx(temp)].val = theval;
+ }
+ }
+ return true;
+ }
+ SQClassMember m;
+ m.val = val;
+ _members->NewSlot(key,SQObjectPtr(_make_field_idx(_defaultvalues.size())));
+ _defaultvalues.push_back(m);
+ return true;
+}
+
+SQInstance *SQClass::CreateInstance()
+{
+ if(!_locked) Lock();
+ return SQInstance::Create(_opt_ss(this),this);
+}
+
+SQInteger SQClass::Next(const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval)
+{
+ SQObjectPtr oval;
+ SQInteger idx = _members->Next(false,refpos,outkey,oval);
+ if(idx != -1) {
+ if(_ismethod(oval)) {
+ outval = _methods[_member_idx(oval)].val;
+ }
+ else {
+ SQObjectPtr &o = _defaultvalues[_member_idx(oval)].val;
+ outval = _realval(o);
+ }
+ }
+ return idx;
+}
+
+bool SQClass::SetAttributes(const SQObjectPtr &key,const SQObjectPtr &val)
+{
+ SQObjectPtr idx;
+ if(_members->Get(key,idx)) {
+ if(_isfield(idx))
+ _defaultvalues[_member_idx(idx)].attrs = val;
+ else
+ _methods[_member_idx(idx)].attrs = val;
+ return true;
+ }
+ return false;
+}
+
+bool SQClass::GetAttributes(const SQObjectPtr &key,SQObjectPtr &outval)
+{
+ SQObjectPtr idx;
+ if(_members->Get(key,idx)) {
+ outval = (_isfield(idx)?_defaultvalues[_member_idx(idx)].attrs:_methods[_member_idx(idx)].attrs);
+ return true;
+ }
+ return false;
+}
+
+///////////////////////////////////////////////////////////////////////
+void SQInstance::Init(SQSharedState *ss)
+{
+ _userpointer = NULL;
+ _hook = NULL;
+ __ObjAddRef(_class);
+ _delegate = _class->_members;
+ INIT_CHAIN();
+ ADD_TO_CHAIN(&_sharedstate->_gc_chain, this);
+}
+
+SQInstance::SQInstance(SQSharedState *ss, SQClass *c, SQInteger memsize)
+{
+ _memsize = memsize;
+ _class = c;
+ SQUnsignedInteger nvalues = _class->_defaultvalues.size();
+ for(SQUnsignedInteger n = 0; n < nvalues; n++) {
+ new (&_values[n]) SQObjectPtr(_class->_defaultvalues[n].val);
+ }
+ Init(ss);
+}
+
+SQInstance::SQInstance(SQSharedState *ss, SQInstance *i, SQInteger memsize)
+{
+ _memsize = memsize;
+ _class = i->_class;
+ SQUnsignedInteger nvalues = _class->_defaultvalues.size();
+ for(SQUnsignedInteger n = 0; n < nvalues; n++) {
+ new (&_values[n]) SQObjectPtr(i->_values[n]);
+ }
+ Init(ss);
+}
+
+void SQInstance::Finalize()
+{
+ SQUnsignedInteger nvalues = _class->_defaultvalues.size();
+ __ObjRelease(_class);
+ _NULL_SQOBJECT_VECTOR(_values,nvalues);
+ //for(SQUnsignedInteger i = 0; i < nvalues; i++) {
+// _values[i].Null();
+// }
+}
+
+SQInstance::~SQInstance()
+{
+ REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
+ if(_class){ Finalize(); } //if _class is null it was already finalized by the GC
+}
+
+bool SQInstance::GetMetaMethod(SQVM *v,SQMetaMethod mm,SQObjectPtr &res)
+{
+ if(type(_class->_metamethods[mm]) != OT_NULL) {
+ res = _class->_metamethods[mm];
+ return true;
+ }
+ return false;
+}
+
+bool SQInstance::InstanceOf(SQClass *trg)
+{
+ SQClass *parent = _class;
+ while(parent != NULL) {
+ if(parent == trg)
+ return true;
+ parent = parent->_base;
+ }
+ return false;
+}
diff --git a/squirrel_3_0_1_stable/squirrel/sqclass.h b/squirrel_3_0_1_stable/squirrel/sqclass.h new file mode 100644 index 000000000..996a3df70 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqclass.h @@ -0,0 +1,158 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQCLASS_H_
+#define _SQCLASS_H_
+
+struct SQInstance;
+
+struct SQClassMember {
+ SQObjectPtr val;
+ SQObjectPtr attrs;
+};
+
+typedef sqvector<SQClassMember> SQClassMemberVec;
+
+#define MEMBER_TYPE_METHOD 0x01000000
+#define MEMBER_TYPE_FIELD 0x02000000
+
+#define _ismethod(o) (_integer(o)&MEMBER_TYPE_METHOD)
+#define _isfield(o) (_integer(o)&MEMBER_TYPE_FIELD)
+#define _make_method_idx(i) ((SQInteger)(MEMBER_TYPE_METHOD|i))
+#define _make_field_idx(i) ((SQInteger)(MEMBER_TYPE_FIELD|i))
+#define _member_type(o) (_integer(o)&0xFF000000)
+#define _member_idx(o) (_integer(o)&0x00FFFFFF)
+
+struct SQClass : public CHAINABLE_OBJ
+{
+ SQClass(SQSharedState *ss,SQClass *base);
+public:
+ static SQClass* Create(SQSharedState *ss,SQClass *base) {
+ SQClass *newclass = (SQClass *)SQ_MALLOC(sizeof(SQClass));
+ new (newclass) SQClass(ss, base);
+ return newclass;
+ }
+ ~SQClass();
+ bool NewSlot(SQSharedState *ss, const SQObjectPtr &key,const SQObjectPtr &val,bool bstatic);
+ bool Get(const SQObjectPtr &key,SQObjectPtr &val) {
+ if(_members->Get(key,val)) {
+ if(_isfield(val)) {
+ SQObjectPtr &o = _defaultvalues[_member_idx(val)].val;
+ val = _realval(o);
+ }
+ else {
+ val = _methods[_member_idx(val)].val;
+ }
+ return true;
+ }
+ return false;
+ }
+ bool GetConstructor(SQObjectPtr &ctor)
+ {
+ if(_constructoridx != -1) {
+ ctor = _methods[_constructoridx].val;
+ return true;
+ }
+ return false;
+ }
+ bool SetAttributes(const SQObjectPtr &key,const SQObjectPtr &val);
+ bool GetAttributes(const SQObjectPtr &key,SQObjectPtr &outval);
+ void Lock() { _locked = true; if(_base) _base->Lock(); }
+ void Release() {
+ if (_hook) { _hook(_typetag,0);}
+ sq_delete(this, SQClass);
+ }
+ void Finalize();
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable ** );
+ SQObjectType GetType() {return OT_CLASS;}
+#endif
+ SQInteger Next(const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval);
+ SQInstance *CreateInstance();
+ SQTable *_members;
+ SQClass *_base;
+ SQClassMemberVec _defaultvalues;
+ SQClassMemberVec _methods;
+ SQObjectPtr _metamethods[MT_LAST];
+ SQObjectPtr _attributes;
+ SQUserPointer _typetag;
+ SQRELEASEHOOK _hook;
+ bool _locked;
+ SQInteger _constructoridx;
+ SQInteger _udsize;
+};
+
+#define calcinstancesize(_theclass_) \
+ (_theclass_->_udsize + sq_aligning(sizeof(SQInstance) + (sizeof(SQObjectPtr)*(_theclass_->_defaultvalues.size()>0?_theclass_->_defaultvalues.size()-1:0))))
+
+struct SQInstance : public SQDelegable
+{
+ void Init(SQSharedState *ss);
+ SQInstance(SQSharedState *ss, SQClass *c, SQInteger memsize);
+ SQInstance(SQSharedState *ss, SQInstance *c, SQInteger memsize);
+public:
+ static SQInstance* Create(SQSharedState *ss,SQClass *theclass) {
+
+ SQInteger size = calcinstancesize(theclass);
+ SQInstance *newinst = (SQInstance *)SQ_MALLOC(size);
+ new (newinst) SQInstance(ss, theclass,size);
+ if(theclass->_udsize) {
+ newinst->_userpointer = ((unsigned char *)newinst) + (size - theclass->_udsize);
+ }
+ return newinst;
+ }
+ SQInstance *Clone(SQSharedState *ss)
+ {
+ SQInteger size = calcinstancesize(_class);
+ SQInstance *newinst = (SQInstance *)SQ_MALLOC(size);
+ new (newinst) SQInstance(ss, this,size);
+ if(_class->_udsize) {
+ newinst->_userpointer = ((unsigned char *)newinst) + (size - _class->_udsize);
+ }
+ return newinst;
+ }
+ ~SQInstance();
+ bool Get(const SQObjectPtr &key,SQObjectPtr &val) {
+ if(_class->_members->Get(key,val)) {
+ if(_isfield(val)) {
+ SQObjectPtr &o = _values[_member_idx(val)];
+ val = _realval(o);
+ }
+ else {
+ val = _class->_methods[_member_idx(val)].val;
+ }
+ return true;
+ }
+ return false;
+ }
+ bool Set(const SQObjectPtr &key,const SQObjectPtr &val) {
+ SQObjectPtr idx;
+ if(_class->_members->Get(key,idx) && _isfield(idx)) {
+ _values[_member_idx(idx)] = val;
+ return true;
+ }
+ return false;
+ }
+ void Release() {
+ _uiRef++;
+ if (_hook) { _hook(_userpointer,0);}
+ _uiRef--;
+ if(_uiRef > 0) return;
+ SQInteger size = _memsize;
+ this->~SQInstance();
+ SQ_FREE(this, size);
+ }
+ void Finalize();
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable ** );
+ SQObjectType GetType() {return OT_INSTANCE;}
+#endif
+ bool InstanceOf(SQClass *trg);
+ bool GetMetaMethod(SQVM *v,SQMetaMethod mm,SQObjectPtr &res);
+
+ SQClass *_class;
+ SQUserPointer _userpointer;
+ SQRELEASEHOOK _hook;
+ SQInteger _memsize;
+ SQObjectPtr _values[1];
+};
+
+#endif //_SQCLASS_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqclosure.h b/squirrel_3_0_1_stable/squirrel/sqclosure.h new file mode 100644 index 000000000..07b3efcfe --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqclosure.h @@ -0,0 +1,193 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQCLOSURE_H_
+#define _SQCLOSURE_H_
+
+
+#define _CALC_CLOSURE_SIZE(func) (sizeof(SQClosure) + (func->_noutervalues*sizeof(SQObjectPtr)) + (func->_ndefaultparams*sizeof(SQObjectPtr)))
+
+struct SQFunctionProto;
+struct SQClass;
+struct SQClosure : public CHAINABLE_OBJ
+{
+private:
+ SQClosure(SQSharedState *ss,SQFunctionProto *func){_function = func; __ObjAddRef(_function); _base = NULL; INIT_CHAIN();ADD_TO_CHAIN(&_ss(this)->_gc_chain,this); _env = NULL;}
+public:
+ static SQClosure *Create(SQSharedState *ss,SQFunctionProto *func){
+ SQInteger size = _CALC_CLOSURE_SIZE(func);
+ SQClosure *nc=(SQClosure*)SQ_MALLOC(size);
+ new (nc) SQClosure(ss,func);
+ nc->_outervalues = (SQObjectPtr *)(nc + 1);
+ nc->_defaultparams = &nc->_outervalues[func->_noutervalues];
+ _CONSTRUCT_VECTOR(SQObjectPtr,func->_noutervalues,nc->_outervalues);
+ _CONSTRUCT_VECTOR(SQObjectPtr,func->_ndefaultparams,nc->_defaultparams);
+ return nc;
+ }
+ void Release(){
+ SQFunctionProto *f = _function;
+ SQInteger size = _CALC_CLOSURE_SIZE(f);
+ _DESTRUCT_VECTOR(SQObjectPtr,f->_noutervalues,_outervalues);
+ _DESTRUCT_VECTOR(SQObjectPtr,f->_ndefaultparams,_defaultparams);
+ __ObjRelease(_function);
+ this->~SQClosure();
+ sq_vm_free(this,size);
+ }
+
+ SQClosure *Clone()
+ {
+ SQFunctionProto *f = _function;
+ SQClosure * ret = SQClosure::Create(_opt_ss(this),f);
+ ret->_env = _env;
+ if(ret->_env) __ObjAddRef(ret->_env);
+ _COPY_VECTOR(ret->_outervalues,_outervalues,f->_noutervalues);
+ _COPY_VECTOR(ret->_defaultparams,_defaultparams,f->_ndefaultparams);
+ return ret;
+ }
+ ~SQClosure();
+
+ bool Save(SQVM *v,SQUserPointer up,SQWRITEFUNC write);
+ static bool Load(SQVM *v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &ret);
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+ void Finalize(){
+ SQFunctionProto *f = _function;
+ _NULL_SQOBJECT_VECTOR(_outervalues,f->_noutervalues);
+ _NULL_SQOBJECT_VECTOR(_defaultparams,f->_ndefaultparams);
+ }
+ SQObjectType GetType() {return OT_CLOSURE;}
+#endif
+ SQWeakRef *_env;
+ SQClass *_base;
+ SQFunctionProto *_function;
+ SQObjectPtr *_outervalues;
+ SQObjectPtr *_defaultparams;
+};
+
+//////////////////////////////////////////////
+struct SQOuter : public CHAINABLE_OBJ
+{
+
+private:
+ SQOuter(SQSharedState *ss, SQObjectPtr *outer){_valptr = outer; _next = NULL; INIT_CHAIN(); ADD_TO_CHAIN(&_ss(this)->_gc_chain,this); }
+
+public:
+ static SQOuter *Create(SQSharedState *ss, SQObjectPtr *outer)
+ {
+ SQOuter *nc = (SQOuter*)SQ_MALLOC(sizeof(SQOuter));
+ new (nc) SQOuter(ss, outer);
+ return nc;
+ }
+ ~SQOuter() { REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this); }
+
+ void Release()
+ {
+ this->~SQOuter();
+ sq_vm_free(this,sizeof(SQOuter));
+ }
+
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+ void Finalize() { _value.Null(); }
+ SQObjectType GetType() {return OT_OUTER;}
+#endif
+
+ SQObjectPtr *_valptr; /* pointer to value on stack, or _value below */
+ SQInteger _idx; /* idx in stack array, for relocation */
+ SQObjectPtr _value; /* value of outer after stack frame is closed */
+ SQOuter *_next; /* pointer to next outer when frame is open */
+};
+
+//////////////////////////////////////////////
+struct SQGenerator : public CHAINABLE_OBJ
+{
+ enum SQGeneratorState{eRunning,eSuspended,eDead};
+private:
+ SQGenerator(SQSharedState *ss,SQClosure *closure){_closure=closure;_state=eRunning;_ci._generator=NULL;INIT_CHAIN();ADD_TO_CHAIN(&_ss(this)->_gc_chain,this);}
+public:
+ static SQGenerator *Create(SQSharedState *ss,SQClosure *closure){
+ SQGenerator *nc=(SQGenerator*)SQ_MALLOC(sizeof(SQGenerator));
+ new (nc) SQGenerator(ss,closure);
+ return nc;
+ }
+ ~SQGenerator()
+ {
+ REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this);
+ }
+ void Kill(){
+ _state=eDead;
+ _stack.resize(0);
+ _closure.Null();}
+ void Release(){
+ sq_delete(this,SQGenerator);
+ }
+
+ bool Yield(SQVM *v,SQInteger target);
+ bool Resume(SQVM *v,SQObjectPtr &dest);
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+ void Finalize(){_stack.resize(0);_closure.Null();}
+ SQObjectType GetType() {return OT_GENERATOR;}
+#endif
+ SQObjectPtr _closure;
+ SQObjectPtrVec _stack;
+ SQVM::CallInfo _ci;
+ ExceptionsTraps _etraps;
+ SQGeneratorState _state;
+};
+
+#define _CALC_NATVIVECLOSURE_SIZE(noutervalues) (sizeof(SQNativeClosure) + (noutervalues*sizeof(SQObjectPtr)))
+
+struct SQNativeClosure : public CHAINABLE_OBJ
+{
+private:
+ SQNativeClosure(SQSharedState *ss,SQFUNCTION func){_function=func;INIT_CHAIN();ADD_TO_CHAIN(&_ss(this)->_gc_chain,this); _env = NULL;}
+public:
+ static SQNativeClosure *Create(SQSharedState *ss,SQFUNCTION func,SQInteger nouters)
+ {
+ SQInteger size = _CALC_NATVIVECLOSURE_SIZE(nouters);
+ SQNativeClosure *nc=(SQNativeClosure*)SQ_MALLOC(size);
+ new (nc) SQNativeClosure(ss,func);
+ nc->_outervalues = (SQObjectPtr *)(nc + 1);
+ nc->_noutervalues = nouters;
+ _CONSTRUCT_VECTOR(SQObjectPtr,nc->_noutervalues,nc->_outervalues);
+ return nc;
+ }
+ SQNativeClosure *Clone()
+ {
+ SQNativeClosure * ret = SQNativeClosure::Create(_opt_ss(this),_function,_noutervalues);
+ ret->_env = _env;
+ if(ret->_env) __ObjAddRef(ret->_env);
+ ret->_name = _name;
+ _COPY_VECTOR(ret->_outervalues,_outervalues,_noutervalues);
+ ret->_typecheck.copy(_typecheck);
+ ret->_nparamscheck = _nparamscheck;
+ return ret;
+ }
+ ~SQNativeClosure()
+ {
+ __ObjRelease(_env);
+ REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this);
+ }
+ void Release(){
+ SQInteger size = _CALC_NATVIVECLOSURE_SIZE(_noutervalues);
+ _DESTRUCT_VECTOR(SQObjectPtr,_noutervalues,_outervalues);
+ this->~SQNativeClosure();
+ sq_free(this,size);
+ }
+
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+ void Finalize() { _NULL_SQOBJECT_VECTOR(_outervalues,_noutervalues); }
+ SQObjectType GetType() {return OT_NATIVECLOSURE;}
+#endif
+ SQInteger _nparamscheck;
+ SQIntVec _typecheck;
+ SQObjectPtr *_outervalues;
+ SQUnsignedInteger _noutervalues;
+ SQWeakRef *_env;
+ SQFUNCTION _function;
+ SQObjectPtr _name;
+};
+
+
+
+#endif //_SQCLOSURE_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqcompiler.cpp b/squirrel_3_0_1_stable/squirrel/sqcompiler.cpp new file mode 100644 index 000000000..e8c1496c9 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqcompiler.cpp @@ -0,0 +1,1504 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#ifndef NO_COMPILER
+#include <stdarg.h>
+#include <setjmp.h>
+#include "sqopcodes.h"
+#include "sqstring.h"
+#include "sqfuncproto.h"
+#include "sqcompiler.h"
+#include "sqfuncstate.h"
+#include "sqlexer.h"
+#include "sqvm.h"
+#include "sqtable.h"
+
+#define EXPR 1
+#define OBJECT 2
+#define BASE 3
+#define LOCAL 4
+#define OUTER 5
+
+struct SQExpState {
+ SQInteger etype; /* expr. type; one of EXPR, OBJECT, BASE, OUTER or LOCAL */
+ SQInteger epos; /* expr. location on stack; -1 for OBJECT and BASE */
+ bool donot_get; /* signal not to deref the next value */
+};
+
+struct SQScope {
+ SQInteger outers;
+ SQInteger stacksize;
+};
+
+#define BEGIN_SCOPE() SQScope __oldscope__ = _scope; \
+ _scope.outers = _fs->_outers; \
+ _scope.stacksize = _fs->GetStackSize();
+
+#define RESOLVE_OUTERS() if(_fs->GetStackSize() != _scope.stacksize) { \
+ if(_fs->CountOuters(_scope.stacksize)) { \
+ _fs->AddInstruction(_OP_CLOSE,0,_scope.stacksize); \
+ } \
+ }
+
+#define END_SCOPE_NO_CLOSE() { if(_fs->GetStackSize() != _scope.stacksize) { \
+ _fs->SetStackSize(_scope.stacksize); \
+ } \
+ _scope = __oldscope__; \
+ }
+
+#define END_SCOPE() { SQInteger oldouters = _fs->_outers;\
+ if(_fs->GetStackSize() != _scope.stacksize) { \
+ _fs->SetStackSize(_scope.stacksize); \
+ if(oldouters != _fs->_outers) { \
+ _fs->AddInstruction(_OP_CLOSE,0,_scope.stacksize); \
+ } \
+ } \
+ _scope = __oldscope__; \
+ }
+
+#define BEGIN_BREAKBLE_BLOCK() SQInteger __nbreaks__=_fs->_unresolvedbreaks.size(); \
+ SQInteger __ncontinues__=_fs->_unresolvedcontinues.size(); \
+ _fs->_breaktargets.push_back(0);_fs->_continuetargets.push_back(0);
+
+#define END_BREAKBLE_BLOCK(continue_target) {__nbreaks__=_fs->_unresolvedbreaks.size()-__nbreaks__; \
+ __ncontinues__=_fs->_unresolvedcontinues.size()-__ncontinues__; \
+ if(__ncontinues__>0)ResolveContinues(_fs,__ncontinues__,continue_target); \
+ if(__nbreaks__>0)ResolveBreaks(_fs,__nbreaks__); \
+ _fs->_breaktargets.pop_back();_fs->_continuetargets.pop_back();}
+
+class SQCompiler
+{
+public:
+ SQCompiler(SQVM *v, SQLEXREADFUNC rg, SQUserPointer up, const SQChar* sourcename, bool raiseerror, bool lineinfo)
+ {
+ _vm=v;
+ _lex.Init(_ss(v), rg, up,ThrowError,this);
+ _sourcename = SQString::Create(_ss(v), sourcename);
+ _lineinfo = lineinfo;_raiseerror = raiseerror;
+ _scope.outers = 0;
+ _scope.stacksize = 0;
+ compilererror = NULL;
+ }
+ static void ThrowError(void *ud, const SQChar *s) {
+ SQCompiler *c = (SQCompiler *)ud;
+ c->Error(s);
+ }
+ void Error(const SQChar *s, ...)
+ {
+ static SQChar temp[256];
+ va_list vl;
+ va_start(vl, s);
+ scvsprintf(temp, s, vl);
+ va_end(vl);
+ compilererror = temp;
+ longjmp(_errorjmp,1);
+ }
+ void Lex(){ _token = _lex.Lex();}
+ SQObject Expect(SQInteger tok)
+ {
+
+ if(_token != tok) {
+ if(_token == TK_CONSTRUCTOR && tok == TK_IDENTIFIER) {
+ //do nothing
+ }
+ else {
+ const SQChar *etypename;
+ if(tok > 255) {
+ switch(tok)
+ {
+ case TK_IDENTIFIER:
+ etypename = _SC("IDENTIFIER");
+ break;
+ case TK_STRING_LITERAL:
+ etypename = _SC("STRING_LITERAL");
+ break;
+ case TK_INTEGER:
+ etypename = _SC("INTEGER");
+ break;
+ case TK_FLOAT:
+ etypename = _SC("FLOAT");
+ break;
+ default:
+ etypename = _lex.Tok2Str(tok);
+ }
+ Error(_SC("expected '%s'"), etypename);
+ }
+ Error(_SC("expected '%c'"), tok);
+ }
+ }
+ SQObjectPtr ret;
+ switch(tok)
+ {
+ case TK_IDENTIFIER:
+ ret = _fs->CreateString(_lex._svalue);
+ break;
+ case TK_STRING_LITERAL:
+ ret = _fs->CreateString(_lex._svalue,_lex._longstr.size()-1);
+ break;
+ case TK_INTEGER:
+ ret = SQObjectPtr(_lex._nvalue);
+ break;
+ case TK_FLOAT:
+ ret = SQObjectPtr(_lex._fvalue);
+ break;
+ }
+ Lex();
+ return ret;
+ }
+ bool IsEndOfStatement() { return ((_lex._prevtoken == _SC('\n')) || (_token == SQUIRREL_EOB) || (_token == _SC('}')) || (_token == _SC(';'))); }
+ void OptionalSemicolon()
+ {
+ if(_token == _SC(';')) { Lex(); return; }
+ if(!IsEndOfStatement()) {
+ Error(_SC("end of statement expected (; or lf)"));
+ }
+ }
+ void MoveIfCurrentTargetIsLocal() {
+ SQInteger trg = _fs->TopTarget();
+ if(_fs->IsLocal(trg)) {
+ trg = _fs->PopTarget(); //no pops the target and move it
+ _fs->AddInstruction(_OP_MOVE, _fs->PushTarget(), trg);
+ }
+ }
+ bool Compile(SQObjectPtr &o)
+ {
+ _debugline = 1;
+ _debugop = 0;
+
+ SQFuncState funcstate(_ss(_vm), NULL,ThrowError,this);
+ funcstate._name = SQString::Create(_ss(_vm), _SC("main"));
+ _fs = &funcstate;
+ _fs->AddParameter(_fs->CreateString(_SC("this")));
+ _fs->AddParameter(_fs->CreateString(_SC("vargv")));
+ _fs->_varparams = true;
+ _fs->_sourcename = _sourcename;
+ SQInteger stacksize = _fs->GetStackSize();
+ if(setjmp(_errorjmp) == 0) {
+ Lex();
+ while(_token > 0){
+ Statement();
+ if(_lex._prevtoken != _SC('}') && _lex._prevtoken != _SC(';')) OptionalSemicolon();
+ }
+ _fs->SetStackSize(stacksize);
+ _fs->AddLineInfos(_lex._currentline, _lineinfo, true);
+ _fs->AddInstruction(_OP_RETURN, 0xFF);
+ _fs->SetStackSize(0);
+ o =_fs->BuildProto();
+#ifdef _DEBUG_DUMP
+ _fs->Dump(_funcproto(o));
+#endif
+ }
+ else {
+ if(_raiseerror && _ss(_vm)->_compilererrorhandler) {
+ _ss(_vm)->_compilererrorhandler(_vm, compilererror, type(_sourcename) == OT_STRING?_stringval(_sourcename):_SC("unknown"),
+ _lex._currentline, _lex._currentcolumn);
+ }
+ _vm->_lasterror = SQString::Create(_ss(_vm), compilererror, -1);
+ return false;
+ }
+ return true;
+ }
+ void Statements()
+ {
+ while(_token != _SC('}') && _token != TK_DEFAULT && _token != TK_CASE) {
+ Statement();
+ if(_lex._prevtoken != _SC('}') && _lex._prevtoken != _SC(';')) OptionalSemicolon();
+ }
+ }
+ void Statement(bool closeframe = true)
+ {
+ _fs->AddLineInfos(_lex._currentline, _lineinfo);
+ switch(_token){
+ case _SC(';'): Lex(); break;
+ case TK_IF: IfStatement(); break;
+ case TK_WHILE: WhileStatement(); break;
+ case TK_DO: DoWhileStatement(); break;
+ case TK_FOR: ForStatement(); break;
+ case TK_FOREACH: ForEachStatement(); break;
+ case TK_SWITCH: SwitchStatement(); break;
+ case TK_LOCAL: LocalDeclStatement(); break;
+ case TK_RETURN:
+ case TK_YIELD: {
+ SQOpcode op;
+ if(_token == TK_RETURN) {
+ op = _OP_RETURN;
+ }
+ else {
+ op = _OP_YIELD;
+ _fs->_bgenerator = true;
+ }
+ Lex();
+ if(!IsEndOfStatement()) {
+ SQInteger retexp = _fs->GetCurrentPos()+1;
+ CommaExpr();
+ if(op == _OP_RETURN && _fs->_traps > 0)
+ _fs->AddInstruction(_OP_POPTRAP, _fs->_traps, 0);
+ _fs->_returnexp = retexp;
+ _fs->AddInstruction(op, 1, _fs->PopTarget(),_fs->GetStackSize());
+ }
+ else{
+ if(op == _OP_RETURN && _fs->_traps > 0)
+ _fs->AddInstruction(_OP_POPTRAP, _fs->_traps ,0);
+ _fs->_returnexp = -1;
+ _fs->AddInstruction(op, 0xFF,0,_fs->GetStackSize());
+ }
+ break;}
+ case TK_BREAK:
+ if(_fs->_breaktargets.size() <= 0)Error(_SC("'break' has to be in a loop block"));
+ if(_fs->_breaktargets.top() > 0){
+ _fs->AddInstruction(_OP_POPTRAP, _fs->_breaktargets.top(), 0);
+ }
+ RESOLVE_OUTERS();
+ _fs->AddInstruction(_OP_JMP, 0, -1234);
+ _fs->_unresolvedbreaks.push_back(_fs->GetCurrentPos());
+ Lex();
+ break;
+ case TK_CONTINUE:
+ if(_fs->_continuetargets.size() <= 0)Error(_SC("'continue' has to be in a loop block"));
+ if(_fs->_continuetargets.top() > 0) {
+ _fs->AddInstruction(_OP_POPTRAP, _fs->_continuetargets.top(), 0);
+ }
+ RESOLVE_OUTERS();
+ _fs->AddInstruction(_OP_JMP, 0, -1234);
+ _fs->_unresolvedcontinues.push_back(_fs->GetCurrentPos());
+ Lex();
+ break;
+ case TK_FUNCTION:
+ FunctionStatement();
+ break;
+ case TK_CLASS:
+ ClassStatement();
+ break;
+ case TK_ENUM:
+ EnumStatement();
+ break;
+ case _SC('{'):{
+ BEGIN_SCOPE();
+ Lex();
+ Statements();
+ Expect(_SC('}'));
+ if(closeframe) {
+ END_SCOPE();
+ }
+ else {
+ END_SCOPE_NO_CLOSE();
+ }
+ }
+ break;
+ case TK_TRY:
+ TryCatchStatement();
+ break;
+ case TK_THROW:
+ Lex();
+ CommaExpr();
+ _fs->AddInstruction(_OP_THROW, _fs->PopTarget());
+ break;
+ case TK_CONST:
+ {
+ Lex();
+ SQObject id = Expect(TK_IDENTIFIER);
+ Expect('=');
+ SQObject val = ExpectScalar();
+ OptionalSemicolon();
+ SQTable *enums = _table(_ss(_vm)->_consts);
+ SQObjectPtr strongid = id;
+ enums->NewSlot(strongid,SQObjectPtr(val));
+ strongid.Null();
+ }
+ break;
+ default:
+ CommaExpr();
+ _fs->DiscardTarget();
+ //_fs->PopTarget();
+ break;
+ }
+ _fs->SnoozeOpt();
+ }
+ void EmitDerefOp(SQOpcode op)
+ {
+ SQInteger val = _fs->PopTarget();
+ SQInteger key = _fs->PopTarget();
+ SQInteger src = _fs->PopTarget();
+ _fs->AddInstruction(op,_fs->PushTarget(),src,key,val);
+ }
+ void Emit2ArgsOP(SQOpcode op, SQInteger p3 = 0)
+ {
+ SQInteger p2 = _fs->PopTarget(); //src in OP_GET
+ SQInteger p1 = _fs->PopTarget(); //key in OP_GET
+ _fs->AddInstruction(op,_fs->PushTarget(), p1, p2, p3);
+ }
+ void EmitCompoundArith(SQInteger tok, SQInteger etype, SQInteger pos)
+ {
+ /* Generate code depending on the expression type */
+ switch(etype) {
+ case LOCAL:{
+ SQInteger p2 = _fs->PopTarget(); //src in OP_GET
+ SQInteger p1 = _fs->PopTarget(); //key in OP_GET
+ _fs->PushTarget(p1);
+ //EmitCompArithLocal(tok, p1, p1, p2);
+ _fs->AddInstruction(ChooseArithOpByToken(tok),p1, p2, p1, 0);
+ }
+ break;
+ case OBJECT:
+ case BASE:
+ {
+ SQInteger val = _fs->PopTarget();
+ SQInteger key = _fs->PopTarget();
+ SQInteger src = _fs->PopTarget();
+ /* _OP_COMPARITH mixes dest obj and source val in the arg1 */
+ _fs->AddInstruction(_OP_COMPARITH, _fs->PushTarget(), (src<<16)|val, key, ChooseCompArithCharByToken(tok));
+ }
+ break;
+ case OUTER:
+ {
+ SQInteger val = _fs->TopTarget();
+ SQInteger tmp = _fs->PushTarget();
+ _fs->AddInstruction(_OP_GETOUTER, tmp, pos);
+ _fs->AddInstruction(ChooseArithOpByToken(tok), tmp, val, tmp, 0);
+ _fs->AddInstruction(_OP_SETOUTER, tmp, pos, tmp);
+ }
+ break;
+ }
+ }
+ void CommaExpr()
+ {
+ for(Expression();_token == ',';_fs->PopTarget(), Lex(), CommaExpr());
+ }
+ void Expression()
+ {
+ SQExpState es = _es;
+ _es.etype = EXPR;
+ _es.epos = -1;
+ _es.donot_get = false;
+ LogicalOrExp();
+ switch(_token) {
+ case _SC('='):
+ case TK_NEWSLOT:
+ case TK_MINUSEQ:
+ case TK_PLUSEQ:
+ case TK_MULEQ:
+ case TK_DIVEQ:
+ case TK_MODEQ:{
+ SQInteger op = _token;
+ SQInteger ds = _es.etype;
+ SQInteger pos = _es.epos;
+ if(ds == EXPR) Error(_SC("can't assign expression"));
+ Lex(); Expression();
+
+ switch(op){
+ case TK_NEWSLOT:
+ if(ds == OBJECT || ds == BASE)
+ EmitDerefOp(_OP_NEWSLOT);
+ else //if _derefstate != DEREF_NO_DEREF && DEREF_FIELD so is the index of a local
+ Error(_SC("can't 'create' a local slot"));
+ break;
+ case _SC('='): //ASSIGN
+ switch(ds) {
+ case LOCAL:
+ {
+ SQInteger src = _fs->PopTarget();
+ SQInteger dst = _fs->TopTarget();
+ _fs->AddInstruction(_OP_MOVE, dst, src);
+ }
+ break;
+ case OBJECT:
+ case BASE:
+ EmitDerefOp(_OP_SET);
+ break;
+ case OUTER:
+ {
+ SQInteger src = _fs->PopTarget();
+ SQInteger dst = _fs->PushTarget();
+ _fs->AddInstruction(_OP_SETOUTER, dst, pos, src);
+ }
+ }
+ break;
+ case TK_MINUSEQ:
+ case TK_PLUSEQ:
+ case TK_MULEQ:
+ case TK_DIVEQ:
+ case TK_MODEQ:
+ EmitCompoundArith(op, ds, pos);
+ break;
+ }
+ }
+ break;
+ case _SC('?'): {
+ Lex();
+ _fs->AddInstruction(_OP_JZ, _fs->PopTarget());
+ SQInteger jzpos = _fs->GetCurrentPos();
+ SQInteger trg = _fs->PushTarget();
+ Expression();
+ SQInteger first_exp = _fs->PopTarget();
+ if(trg != first_exp) _fs->AddInstruction(_OP_MOVE, trg, first_exp);
+ SQInteger endfirstexp = _fs->GetCurrentPos();
+ _fs->AddInstruction(_OP_JMP, 0, 0);
+ Expect(_SC(':'));
+ SQInteger jmppos = _fs->GetCurrentPos();
+ Expression();
+ SQInteger second_exp = _fs->PopTarget();
+ if(trg != second_exp) _fs->AddInstruction(_OP_MOVE, trg, second_exp);
+ _fs->SetIntructionParam(jmppos, 1, _fs->GetCurrentPos() - jmppos);
+ _fs->SetIntructionParam(jzpos, 1, endfirstexp - jzpos + 1);
+ _fs->SnoozeOpt();
+ }
+ break;
+ }
+ _es = es;
+ }
+ template<typename T> void BIN_EXP(SQOpcode op, T f,SQInteger op3 = 0)
+ {
+ Lex(); (this->*f)();
+ SQInteger op1 = _fs->PopTarget();SQInteger op2 = _fs->PopTarget();
+ _fs->AddInstruction(op, _fs->PushTarget(), op1, op2, op3);
+ }
+ void LogicalOrExp()
+ {
+ LogicalAndExp();
+ for(;;) if(_token == TK_OR) {
+ SQInteger first_exp = _fs->PopTarget();
+ SQInteger trg = _fs->PushTarget();
+ _fs->AddInstruction(_OP_OR, trg, 0, first_exp, 0);
+ SQInteger jpos = _fs->GetCurrentPos();
+ if(trg != first_exp) _fs->AddInstruction(_OP_MOVE, trg, first_exp);
+ Lex(); LogicalOrExp();
+ _fs->SnoozeOpt();
+ SQInteger second_exp = _fs->PopTarget();
+ if(trg != second_exp) _fs->AddInstruction(_OP_MOVE, trg, second_exp);
+ _fs->SnoozeOpt();
+ _fs->SetIntructionParam(jpos, 1, (_fs->GetCurrentPos() - jpos));
+ break;
+ }else return;
+ }
+ void LogicalAndExp()
+ {
+ BitwiseOrExp();
+ for(;;) switch(_token) {
+ case TK_AND: {
+ SQInteger first_exp = _fs->PopTarget();
+ SQInteger trg = _fs->PushTarget();
+ _fs->AddInstruction(_OP_AND, trg, 0, first_exp, 0);
+ SQInteger jpos = _fs->GetCurrentPos();
+ if(trg != first_exp) _fs->AddInstruction(_OP_MOVE, trg, first_exp);
+ Lex(); LogicalAndExp();
+ _fs->SnoozeOpt();
+ SQInteger second_exp = _fs->PopTarget();
+ if(trg != second_exp) _fs->AddInstruction(_OP_MOVE, trg, second_exp);
+ _fs->SnoozeOpt();
+ _fs->SetIntructionParam(jpos, 1, (_fs->GetCurrentPos() - jpos));
+ break;
+ }
+ case TK_IN: BIN_EXP(_OP_EXISTS, &SQCompiler::BitwiseOrExp); break;
+ case TK_INSTANCEOF: BIN_EXP(_OP_INSTANCEOF, &SQCompiler::BitwiseOrExp); break;
+ default:
+ return;
+ }
+ }
+ void BitwiseOrExp()
+ {
+ BitwiseXorExp();
+ for(;;) if(_token == _SC('|'))
+ {BIN_EXP(_OP_BITW, &SQCompiler::BitwiseXorExp,BW_OR);
+ }else return;
+ }
+ void BitwiseXorExp()
+ {
+ BitwiseAndExp();
+ for(;;) if(_token == _SC('^'))
+ {BIN_EXP(_OP_BITW, &SQCompiler::BitwiseAndExp,BW_XOR);
+ }else return;
+ }
+ void BitwiseAndExp()
+ {
+ EqExp();
+ for(;;) if(_token == _SC('&'))
+ {BIN_EXP(_OP_BITW, &SQCompiler::EqExp,BW_AND);
+ }else return;
+ }
+ void EqExp()
+ {
+ CompExp();
+ for(;;) switch(_token) {
+ case TK_EQ: BIN_EXP(_OP_EQ, &SQCompiler::CompExp); break;
+ case TK_NE: BIN_EXP(_OP_NE, &SQCompiler::CompExp); break;
+ case TK_3WAYSCMP: BIN_EXP(_OP_CMP, &SQCompiler::CompExp,CMP_3W); break;
+ default: return;
+ }
+ }
+ void CompExp()
+ {
+ ShiftExp();
+ for(;;) switch(_token) {
+ case _SC('>'): BIN_EXP(_OP_CMP, &SQCompiler::ShiftExp,CMP_G); break;
+ case _SC('<'): BIN_EXP(_OP_CMP, &SQCompiler::ShiftExp,CMP_L); break;
+ case TK_GE: BIN_EXP(_OP_CMP, &SQCompiler::ShiftExp,CMP_GE); break;
+ case TK_LE: BIN_EXP(_OP_CMP, &SQCompiler::ShiftExp,CMP_LE); break;
+ default: return;
+ }
+ }
+ void ShiftExp()
+ {
+ PlusExp();
+ for(;;) switch(_token) {
+ case TK_USHIFTR: BIN_EXP(_OP_BITW, &SQCompiler::PlusExp,BW_USHIFTR); break;
+ case TK_SHIFTL: BIN_EXP(_OP_BITW, &SQCompiler::PlusExp,BW_SHIFTL); break;
+ case TK_SHIFTR: BIN_EXP(_OP_BITW, &SQCompiler::PlusExp,BW_SHIFTR); break;
+ default: return;
+ }
+ }
+ SQOpcode ChooseArithOpByToken(SQInteger tok)
+ {
+ switch(tok) {
+ case TK_PLUSEQ: case '+': return _OP_ADD;
+ case TK_MINUSEQ: case '-': return _OP_SUB;
+ case TK_MULEQ: case '*': return _OP_MUL;
+ case TK_DIVEQ: case '/': return _OP_DIV;
+ case TK_MODEQ: case '%': return _OP_MOD;
+ default: assert(0);
+ }
+ return _OP_ADD;
+ }
+ SQInteger ChooseCompArithCharByToken(SQInteger tok)
+ {
+ SQInteger oper;
+ switch(tok){
+ case TK_MINUSEQ: oper = '-'; break;
+ case TK_PLUSEQ: oper = '+'; break;
+ case TK_MULEQ: oper = '*'; break;
+ case TK_DIVEQ: oper = '/'; break;
+ case TK_MODEQ: oper = '%'; break;
+ default: oper = 0; //shut up compiler
+ assert(0); break;
+ };
+ return oper;
+ }
+ void PlusExp()
+ {
+ MultExp();
+ for(;;) switch(_token) {
+ case _SC('+'): case _SC('-'):
+ BIN_EXP(ChooseArithOpByToken(_token), &SQCompiler::MultExp); break;
+ default: return;
+ }
+ }
+
+ void MultExp()
+ {
+ PrefixedExpr();
+ for(;;) switch(_token) {
+ case _SC('*'): case _SC('/'): case _SC('%'):
+ BIN_EXP(ChooseArithOpByToken(_token), &SQCompiler::PrefixedExpr); break;
+ default: return;
+ }
+ }
+ //if 'pos' != -1 the previous variable is a local variable
+ void PrefixedExpr()
+ {
+ SQInteger pos = Factor();
+ for(;;) {
+ switch(_token) {
+ case _SC('.'):
+ pos = -1;
+ Lex();
+
+ _fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(Expect(TK_IDENTIFIER)));
+ if(_es.etype==BASE) {
+ Emit2ArgsOP(_OP_GET);
+ pos = _fs->TopTarget();
+ _es.etype = EXPR;
+ _es.epos = pos;
+ }
+ else {
+ if(NeedGet()) {
+ Emit2ArgsOP(_OP_GET);
+ }
+ _es.etype = OBJECT;
+ }
+ break;
+ case _SC('['):
+ if(_lex._prevtoken == _SC('\n')) Error(_SC("cannot brake deref/or comma needed after [exp]=exp slot declaration"));
+ Lex(); Expression(); Expect(_SC(']'));
+ pos = -1;
+ if(_es.etype==BASE) {
+ Emit2ArgsOP(_OP_GET);
+ pos = _fs->TopTarget();
+ _es.etype = EXPR;
+ _es.epos = pos;
+ }
+ else {
+ if(NeedGet()) {
+ Emit2ArgsOP(_OP_GET);
+ }
+ _es.etype = OBJECT;
+ }
+ break;
+ case TK_MINUSMINUS:
+ case TK_PLUSPLUS:
+ {
+ if(IsEndOfStatement()) return;
+ SQInteger diff = (_token==TK_MINUSMINUS) ? -1 : 1;
+ Lex();
+ switch(_es.etype)
+ {
+ case EXPR: Error(_SC("can't '++' or '--' an expression")); break;
+ case OBJECT:
+ case BASE:
+ Emit2ArgsOP(_OP_PINC, diff);
+ break;
+ case LOCAL: {
+ SQInteger src = _fs->PopTarget();
+ _fs->AddInstruction(_OP_PINCL, _fs->PushTarget(), src, 0, diff);
+ }
+ break;
+ case OUTER: {
+ SQInteger tmp1 = _fs->PushTarget();
+ SQInteger tmp2 = _fs->PushTarget();
+ _fs->AddInstruction(_OP_GETOUTER, tmp2, _es.epos);
+ _fs->AddInstruction(_OP_PINCL, tmp1, tmp2, 0, diff);
+ _fs->AddInstruction(_OP_SETOUTER, tmp2, _es.epos, tmp2);
+ _fs->PopTarget();
+ }
+ }
+ }
+ return;
+ break;
+ case _SC('('):
+ switch(_es.etype) {
+ case OBJECT: {
+ SQInteger key = _fs->PopTarget(); /* location of the key */
+ SQInteger table = _fs->PopTarget(); /* location of the object */
+ SQInteger closure = _fs->PushTarget(); /* location for the closure */
+ SQInteger ttarget = _fs->PushTarget(); /* location for 'this' pointer */
+ _fs->AddInstruction(_OP_PREPCALL, closure, key, table, ttarget);
+ }
+ break;
+ case BASE:
+ //Emit2ArgsOP(_OP_GET);
+ _fs->AddInstruction(_OP_MOVE, _fs->PushTarget(), 0);
+ break;
+ case OUTER:
+ _fs->AddInstruction(_OP_GETOUTER, _fs->PushTarget(), _es.epos);
+ _fs->AddInstruction(_OP_MOVE, _fs->PushTarget(), 0);
+ break;
+ default:
+ _fs->AddInstruction(_OP_MOVE, _fs->PushTarget(), 0);
+ }
+ _es.etype = EXPR;
+ Lex();
+ FunctionCallArgs();
+ break;
+ default: return;
+ }
+ }
+ }
+ SQInteger Factor()
+ {
+ _es.etype = EXPR;
+ switch(_token)
+ {
+ case TK_STRING_LITERAL:
+ _fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(_fs->CreateString(_lex._svalue,_lex._longstr.size()-1)));
+ Lex();
+ break;
+ case TK_BASE:
+ Lex();
+ _fs->AddInstruction(_OP_GETBASE, _fs->PushTarget());
+ _es.etype = BASE;
+ _es.epos = _fs->TopTarget();
+ return (_es.epos);
+ break;
+ case TK_IDENTIFIER:
+ case TK_CONSTRUCTOR:
+ case TK_THIS:{
+ SQObject id;
+ SQObject constant;
+
+ switch(_token) {
+ case TK_IDENTIFIER: id = _fs->CreateString(_lex._svalue); break;
+ case TK_THIS: id = _fs->CreateString(_SC("this")); break;
+ case TK_CONSTRUCTOR: id = _fs->CreateString(_SC("constructor")); break;
+ }
+
+ SQInteger pos = -1;
+ Lex();
+ if((pos = _fs->GetLocalVariable(id)) != -1) {
+ /* Handle a local variable (includes 'this') */
+ _fs->PushTarget(pos);
+ _es.etype = LOCAL;
+ _es.epos = pos;
+ }
+
+ else if((pos = _fs->GetOuterVariable(id)) != -1) {
+ /* Handle a free var */
+ if(NeedGet()) {
+ _es.epos = _fs->PushTarget();
+ _fs->AddInstruction(_OP_GETOUTER, _es.epos, pos);
+ /* _es.etype = EXPR; already default value */
+ }
+ else {
+ _es.etype = OUTER;
+ _es.epos = pos;
+ }
+ }
+
+ else if(_fs->IsConstant(id, constant)) {
+ /* Handle named constant */
+ SQObjectPtr constval;
+ SQObject constid;
+ if(type(constant) == OT_TABLE) {
+ Expect('.');
+ constid = Expect(TK_IDENTIFIER);
+ if(!_table(constant)->Get(constid, constval)) {
+ constval.Null();
+ Error(_SC("invalid constant [%s.%s]"), _stringval(id), _stringval(constid));
+ }
+ }
+ else {
+ constval = constant;
+ }
+ _es.epos = _fs->PushTarget();
+
+ /* generate direct or literal function depending on size */
+ SQObjectType ctype = type(constval);
+ switch(ctype) {
+ case OT_INTEGER: EmitLoadConstInt(_integer(constval),_es.epos); break;
+ case OT_FLOAT: EmitLoadConstFloat(_float(constval),_es.epos); break;
+ default: _fs->AddInstruction(_OP_LOAD,_es.epos,_fs->GetConstant(constval)); break;
+ }
+ _es.etype = EXPR;
+ }
+ else {
+ /* Handle a non-local variable, aka a field. Push the 'this' pointer on
+ * the virtual stack (always found in offset 0, so no instruction needs to
+ * be generated), and push the key next. Generate an _OP_LOAD instruction
+ * for the latter. If we are not using the variable as a dref expr, generate
+ * the _OP_GET instruction.
+ */
+ _fs->PushTarget(0);
+ _fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(id));
+ if(NeedGet()) {
+ Emit2ArgsOP(_OP_GET);
+ }
+ _es.etype = OBJECT;
+ }
+ return _es.epos;
+ }
+ break;
+ case TK_DOUBLE_COLON: // "::"
+ _fs->AddInstruction(_OP_LOADROOT, _fs->PushTarget());
+ _es.etype = OBJECT;
+ _token = _SC('.'); /* hack: drop into PrefixExpr, case '.'*/
+ _es.epos = -1;
+ return _es.epos;
+ break;
+ case TK_NULL:
+ _fs->AddInstruction(_OP_LOADNULLS, _fs->PushTarget(),1);
+ Lex();
+ break;
+ case TK_INTEGER: EmitLoadConstInt(_lex._nvalue,-1); Lex(); break;
+ case TK_FLOAT: EmitLoadConstFloat(_lex._fvalue,-1); Lex(); break;
+ case TK_TRUE: case TK_FALSE:
+ _fs->AddInstruction(_OP_LOADBOOL, _fs->PushTarget(),_token == TK_TRUE?1:0);
+ Lex();
+ break;
+ case _SC('['): {
+ _fs->AddInstruction(_OP_NEWOBJ, _fs->PushTarget(),0,0,NOT_ARRAY);
+ SQInteger apos = _fs->GetCurrentPos(),key = 0;
+ Lex();
+ while(_token != _SC(']')) {
+ Expression();
+ if(_token == _SC(',')) Lex();
+ SQInteger val = _fs->PopTarget();
+ SQInteger array = _fs->TopTarget();
+ _fs->AddInstruction(_OP_APPENDARRAY, array, val, AAT_STACK);
+ key++;
+ }
+ _fs->SetIntructionParam(apos, 1, key);
+ Lex();
+ }
+ break;
+ case _SC('{'):
+ _fs->AddInstruction(_OP_NEWOBJ, _fs->PushTarget(),0,NOT_TABLE);
+ Lex();ParseTableOrClass(_SC(','),_SC('}'));
+ break;
+ case TK_FUNCTION: FunctionExp(_token);break;
+ case _SC('@'): FunctionExp(_token,true);break;
+ case TK_CLASS: Lex(); ClassExp();break;
+ case _SC('-'):
+ Lex();
+ switch(_token) {
+ case TK_INTEGER: EmitLoadConstInt(-_lex._nvalue,-1); Lex(); break;
+ case TK_FLOAT: EmitLoadConstFloat(-_lex._fvalue,-1); Lex(); break;
+ default: UnaryOP(_OP_NEG);
+ }
+ break;
+ case _SC('!'): Lex(); UnaryOP(_OP_NOT); break;
+ case _SC('~'):
+ Lex();
+ if(_token == TK_INTEGER) { EmitLoadConstInt(~_lex._nvalue,-1); Lex(); break; }
+ UnaryOP(_OP_BWNOT);
+ break;
+ case TK_TYPEOF : Lex() ;UnaryOP(_OP_TYPEOF); break;
+ case TK_RESUME : Lex(); UnaryOP(_OP_RESUME); break;
+ case TK_CLONE : Lex(); UnaryOP(_OP_CLONE); break;
+ case TK_MINUSMINUS :
+ case TK_PLUSPLUS :PrefixIncDec(_token); break;
+ case TK_DELETE : DeleteExpr(); break;
+ case _SC('('): Lex(); CommaExpr(); Expect(_SC(')'));
+ break;
+ default: Error(_SC("expression expected"));
+ }
+ return -1;
+ }
+ void EmitLoadConstInt(SQInteger value,SQInteger target)
+ {
+ if(target < 0) {
+ target = _fs->PushTarget();
+ }
+ if((value & (~((SQInteger)0xFFFFFFFF))) == 0) { //does it fit in 32 bits?
+ _fs->AddInstruction(_OP_LOADINT, target,value);
+ }
+ else {
+ _fs->AddInstruction(_OP_LOAD, target, _fs->GetNumericConstant(value));
+ }
+ }
+ void EmitLoadConstFloat(SQFloat value,SQInteger target)
+ {
+ if(target < 0) {
+ target = _fs->PushTarget();
+ }
+ if(sizeof(SQFloat) == sizeof(SQInt32)) {
+ _fs->AddInstruction(_OP_LOADFLOAT, target,*((SQInt32 *)&value));
+ }
+ else {
+ _fs->AddInstruction(_OP_LOAD, target, _fs->GetNumericConstant(value));
+ }
+ }
+ void UnaryOP(SQOpcode op)
+ {
+ PrefixedExpr();
+ SQInteger src = _fs->PopTarget();
+ _fs->AddInstruction(op, _fs->PushTarget(), src);
+ }
+ bool NeedGet()
+ {
+ switch(_token) {
+ case _SC('='): case _SC('('): case TK_NEWSLOT: case TK_MODEQ: case TK_MULEQ:
+ case TK_DIVEQ: case TK_MINUSEQ: case TK_PLUSEQ: case TK_PLUSPLUS: case TK_MINUSMINUS:
+ return false;
+ }
+ return (!_es.donot_get || ( _es.donot_get && (_token == _SC('.') || _token == _SC('['))));
+ }
+ void FunctionCallArgs()
+ {
+ SQInteger nargs = 1;//this
+ while(_token != _SC(')')) {
+ Expression();
+ MoveIfCurrentTargetIsLocal();
+ nargs++;
+ if(_token == _SC(',')){
+ Lex();
+ if(_token == ')') Error(_SC("expression expected, found ')'"));
+ }
+ }
+ Lex();
+ for(SQInteger i = 0; i < (nargs - 1); i++) _fs->PopTarget();
+ SQInteger stackbase = _fs->PopTarget();
+ SQInteger closure = _fs->PopTarget();
+ _fs->AddInstruction(_OP_CALL, _fs->PushTarget(), closure, stackbase, nargs);
+ }
+ void ParseTableOrClass(SQInteger separator,SQInteger terminator)
+ {
+ SQInteger tpos = _fs->GetCurrentPos(),nkeys = 0;
+ while(_token != terminator) {
+ bool hasattrs = false;
+ bool isstatic = false;
+ //check if is an attribute
+ if(separator == ';') {
+ if(_token == TK_ATTR_OPEN) {
+ _fs->AddInstruction(_OP_NEWOBJ, _fs->PushTarget(),0,NOT_TABLE); Lex();
+ ParseTableOrClass(',',TK_ATTR_CLOSE);
+ hasattrs = true;
+ }
+ if(_token == TK_STATIC) {
+ isstatic = true;
+ Lex();
+ }
+ }
+ switch(_token) {
+ case TK_FUNCTION:
+ case TK_CONSTRUCTOR:{
+ SQInteger tk = _token;
+ Lex();
+ SQObject id = tk == TK_FUNCTION ? Expect(TK_IDENTIFIER) : _fs->CreateString(_SC("constructor"));
+ Expect(_SC('('));
+ _fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(id));
+ CreateFunction(id);
+ _fs->AddInstruction(_OP_CLOSURE, _fs->PushTarget(), _fs->_functions.size() - 1, 0);
+ }
+ break;
+ case _SC('['):
+ Lex(); CommaExpr(); Expect(_SC(']'));
+ Expect(_SC('=')); Expression();
+ break;
+ case TK_STRING_LITERAL: //JSON
+ if(separator == ',') { //only works for tables
+ _fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(Expect(TK_STRING_LITERAL)));
+ Expect(_SC(':')); Expression();
+ break;
+ }
+ default :
+ _fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(Expect(TK_IDENTIFIER)));
+ Expect(_SC('=')); Expression();
+ }
+ if(_token == separator) Lex();//optional comma/semicolon
+ nkeys++;
+ SQInteger val = _fs->PopTarget();
+ SQInteger key = _fs->PopTarget();
+ SQInteger attrs = hasattrs ? _fs->PopTarget():-1;
+ assert((hasattrs && (attrs == key-1)) || !hasattrs);
+ unsigned char flags = (hasattrs?NEW_SLOT_ATTRIBUTES_FLAG:0)|(isstatic?NEW_SLOT_STATIC_FLAG:0);
+ SQInteger table = _fs->TopTarget(); //<<BECAUSE OF THIS NO COMMON EMIT FUNC IS POSSIBLE
+ if(separator == _SC(',')) { //hack recognizes a table from the separator
+ _fs->AddInstruction(_OP_NEWSLOT, 0xFF, table, key, val);
+ }
+ else {
+ _fs->AddInstruction(_OP_NEWSLOTA, flags, table, key, val); //this for classes only as it invokes _newmember
+ }
+ }
+ if(separator == _SC(',')) //hack recognizes a table from the separator
+ _fs->SetIntructionParam(tpos, 1, nkeys);
+ Lex();
+ }
+ void LocalDeclStatement()
+ {
+ SQObject varname;
+ Lex();
+ if( _token == TK_FUNCTION) {
+ Lex();
+ varname = Expect(TK_IDENTIFIER);
+ Expect(_SC('('));
+ CreateFunction(varname,false);
+ _fs->AddInstruction(_OP_CLOSURE, _fs->PushTarget(), _fs->_functions.size() - 1, 0);
+ _fs->PopTarget();
+ _fs->PushLocalVariable(varname);
+ return;
+ }
+
+ do {
+ varname = Expect(TK_IDENTIFIER);
+ if(_token == _SC('=')) {
+ Lex(); Expression();
+ SQInteger src = _fs->PopTarget();
+ SQInteger dest = _fs->PushTarget();
+ if(dest != src) _fs->AddInstruction(_OP_MOVE, dest, src);
+ }
+ else{
+ _fs->AddInstruction(_OP_LOADNULLS, _fs->PushTarget(),1);
+ }
+ _fs->PopTarget();
+ _fs->PushLocalVariable(varname);
+ if(_token == _SC(',')) Lex(); else break;
+ } while(1);
+ }
+ void IfStatement()
+ {
+ SQInteger jmppos;
+ bool haselse = false;
+ Lex(); Expect(_SC('(')); CommaExpr(); Expect(_SC(')'));
+ _fs->AddInstruction(_OP_JZ, _fs->PopTarget());
+ SQInteger jnepos = _fs->GetCurrentPos();
+ BEGIN_SCOPE();
+
+ Statement();
+ //
+ if(_token != _SC('}') && _token != TK_ELSE) OptionalSemicolon();
+
+ END_SCOPE();
+ SQInteger endifblock = _fs->GetCurrentPos();
+ if(_token == TK_ELSE){
+ haselse = true;
+ BEGIN_SCOPE();
+ _fs->AddInstruction(_OP_JMP);
+ jmppos = _fs->GetCurrentPos();
+ Lex();
+ Statement(); OptionalSemicolon();
+ END_SCOPE();
+ _fs->SetIntructionParam(jmppos, 1, _fs->GetCurrentPos() - jmppos);
+ }
+ _fs->SetIntructionParam(jnepos, 1, endifblock - jnepos + (haselse?1:0));
+ }
+ void WhileStatement()
+ {
+ SQInteger jzpos, jmppos;
+ jmppos = _fs->GetCurrentPos();
+ Lex(); Expect(_SC('(')); CommaExpr(); Expect(_SC(')'));
+
+ BEGIN_BREAKBLE_BLOCK();
+ _fs->AddInstruction(_OP_JZ, _fs->PopTarget());
+ jzpos = _fs->GetCurrentPos();
+ BEGIN_SCOPE();
+
+ Statement();
+
+ END_SCOPE();
+ _fs->AddInstruction(_OP_JMP, 0, jmppos - _fs->GetCurrentPos() - 1);
+ _fs->SetIntructionParam(jzpos, 1, _fs->GetCurrentPos() - jzpos);
+
+ END_BREAKBLE_BLOCK(jmppos);
+ }
+ void DoWhileStatement()
+ {
+ Lex();
+ SQInteger jmptrg = _fs->GetCurrentPos();
+ BEGIN_BREAKBLE_BLOCK()
+ BEGIN_SCOPE();
+ Statement();
+ END_SCOPE();
+ Expect(TK_WHILE);
+ SQInteger continuetrg = _fs->GetCurrentPos();
+ Expect(_SC('(')); CommaExpr(); Expect(_SC(')'));
+ _fs->AddInstruction(_OP_JZ, _fs->PopTarget(), 1);
+ _fs->AddInstruction(_OP_JMP, 0, jmptrg - _fs->GetCurrentPos() - 1);
+ END_BREAKBLE_BLOCK(continuetrg);
+ }
+ void ForStatement()
+ {
+ Lex();
+ BEGIN_SCOPE();
+ Expect(_SC('('));
+ if(_token == TK_LOCAL) LocalDeclStatement();
+ else if(_token != _SC(';')){
+ CommaExpr();
+ _fs->PopTarget();
+ }
+ Expect(_SC(';'));
+ _fs->SnoozeOpt();
+ SQInteger jmppos = _fs->GetCurrentPos();
+ SQInteger jzpos = -1;
+ if(_token != _SC(';')) { CommaExpr(); _fs->AddInstruction(_OP_JZ, _fs->PopTarget()); jzpos = _fs->GetCurrentPos(); }
+ Expect(_SC(';'));
+ _fs->SnoozeOpt();
+ SQInteger expstart = _fs->GetCurrentPos() + 1;
+ if(_token != _SC(')')) {
+ CommaExpr();
+ _fs->PopTarget();
+ }
+ Expect(_SC(')'));
+ _fs->SnoozeOpt();
+ SQInteger expend = _fs->GetCurrentPos();
+ SQInteger expsize = (expend - expstart) + 1;
+ SQInstructionVec exp;
+ if(expsize > 0) {
+ for(SQInteger i = 0; i < expsize; i++)
+ exp.push_back(_fs->GetInstruction(expstart + i));
+ _fs->PopInstructions(expsize);
+ }
+ BEGIN_BREAKBLE_BLOCK()
+ Statement();
+ SQInteger continuetrg = _fs->GetCurrentPos();
+ if(expsize > 0) {
+ for(SQInteger i = 0; i < expsize; i++)
+ _fs->AddInstruction(exp[i]);
+ }
+ _fs->AddInstruction(_OP_JMP, 0, jmppos - _fs->GetCurrentPos() - 1, 0);
+ if(jzpos> 0) _fs->SetIntructionParam(jzpos, 1, _fs->GetCurrentPos() - jzpos);
+ END_SCOPE();
+
+ END_BREAKBLE_BLOCK(continuetrg);
+ }
+ void ForEachStatement()
+ {
+ SQObject idxname, valname;
+ Lex(); Expect(_SC('(')); valname = Expect(TK_IDENTIFIER);
+ if(_token == _SC(',')) {
+ idxname = valname;
+ Lex(); valname = Expect(TK_IDENTIFIER);
+ }
+ else{
+ idxname = _fs->CreateString(_SC("@INDEX@"));
+ }
+ Expect(TK_IN);
+
+ //save the stack size
+ BEGIN_SCOPE();
+ //put the table in the stack(evaluate the table expression)
+ Expression(); Expect(_SC(')'));
+ SQInteger container = _fs->TopTarget();
+ //push the index local var
+ SQInteger indexpos = _fs->PushLocalVariable(idxname);
+ _fs->AddInstruction(_OP_LOADNULLS, indexpos,1);
+ //push the value local var
+ SQInteger valuepos = _fs->PushLocalVariable(valname);
+ _fs->AddInstruction(_OP_LOADNULLS, valuepos,1);
+ //push reference index
+ SQInteger itrpos = _fs->PushLocalVariable(_fs->CreateString(_SC("@ITERATOR@"))); //use invalid id to make it inaccessible
+ _fs->AddInstruction(_OP_LOADNULLS, itrpos,1);
+ SQInteger jmppos = _fs->GetCurrentPos();
+ _fs->AddInstruction(_OP_FOREACH, container, 0, indexpos);
+ SQInteger foreachpos = _fs->GetCurrentPos();
+ _fs->AddInstruction(_OP_POSTFOREACH, container, 0, indexpos);
+ //generate the statement code
+ BEGIN_BREAKBLE_BLOCK()
+ Statement();
+ _fs->AddInstruction(_OP_JMP, 0, jmppos - _fs->GetCurrentPos() - 1);
+ _fs->SetIntructionParam(foreachpos, 1, _fs->GetCurrentPos() - foreachpos);
+ _fs->SetIntructionParam(foreachpos + 1, 1, _fs->GetCurrentPos() - foreachpos);
+ END_BREAKBLE_BLOCK(foreachpos - 1);
+ //restore the local variable stack(remove index,val and ref idx)
+ END_SCOPE();
+ }
+ void SwitchStatement()
+ {
+ Lex(); Expect(_SC('(')); CommaExpr(); Expect(_SC(')'));
+ Expect(_SC('{'));
+ SQInteger expr = _fs->TopTarget();
+ bool bfirst = true;
+ SQInteger tonextcondjmp = -1;
+ SQInteger skipcondjmp = -1;
+ SQInteger __nbreaks__ = _fs->_unresolvedbreaks.size();
+ _fs->_breaktargets.push_back(0);
+ while(_token == TK_CASE) {
+ if(!bfirst) {
+ _fs->AddInstruction(_OP_JMP, 0, 0);
+ skipcondjmp = _fs->GetCurrentPos();
+ _fs->SetIntructionParam(tonextcondjmp, 1, _fs->GetCurrentPos() - tonextcondjmp);
+ }
+ //condition
+ Lex(); Expression(); Expect(_SC(':'));
+ SQInteger trg = _fs->PopTarget();
+ _fs->AddInstruction(_OP_EQ, trg, trg, expr);
+ _fs->AddInstruction(_OP_JZ, trg, 0);
+ //end condition
+ if(skipcondjmp != -1) {
+ _fs->SetIntructionParam(skipcondjmp, 1, (_fs->GetCurrentPos() - skipcondjmp));
+ }
+ tonextcondjmp = _fs->GetCurrentPos();
+ BEGIN_SCOPE();
+ Statements();
+ END_SCOPE();
+ bfirst = false;
+ }
+ if(tonextcondjmp != -1)
+ _fs->SetIntructionParam(tonextcondjmp, 1, _fs->GetCurrentPos() - tonextcondjmp);
+ if(_token == TK_DEFAULT) {
+ Lex(); Expect(_SC(':'));
+ BEGIN_SCOPE();
+ Statements();
+ END_SCOPE();
+ }
+ Expect(_SC('}'));
+ _fs->PopTarget();
+ __nbreaks__ = _fs->_unresolvedbreaks.size() - __nbreaks__;
+ if(__nbreaks__ > 0)ResolveBreaks(_fs, __nbreaks__);
+ _fs->_breaktargets.pop_back();
+ }
+ void FunctionStatement()
+ {
+ SQObject id;
+ Lex(); id = Expect(TK_IDENTIFIER);
+ _fs->PushTarget(0);
+ _fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(id));
+ if(_token == TK_DOUBLE_COLON) Emit2ArgsOP(_OP_GET);
+
+ while(_token == TK_DOUBLE_COLON) {
+ Lex();
+ id = Expect(TK_IDENTIFIER);
+ _fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(id));
+ if(_token == TK_DOUBLE_COLON) Emit2ArgsOP(_OP_GET);
+ }
+ Expect(_SC('('));
+ CreateFunction(id);
+ _fs->AddInstruction(_OP_CLOSURE, _fs->PushTarget(), _fs->_functions.size() - 1, 0);
+ EmitDerefOp(_OP_NEWSLOT);
+ _fs->PopTarget();
+ }
+ void ClassStatement()
+ {
+ SQExpState es;
+ Lex();
+ es = _es;
+ _es.donot_get = true;
+ PrefixedExpr();
+ if(_es.etype == EXPR) {
+ Error(_SC("invalid class name"));
+ }
+ else if(_es.etype == OBJECT || _es.etype == BASE) {
+ ClassExp();
+ EmitDerefOp(_OP_NEWSLOT);
+ _fs->PopTarget();
+ }
+ else {
+ Error(_SC("cannot create a class in a local with the syntax(class <local>)"));
+ }
+ _es = es;
+ }
+ SQObject ExpectScalar()
+ {
+ SQObject val;
+ val._type = OT_NULL; val._unVal.nInteger = 0; //shut up GCC 4.x
+ switch(_token) {
+ case TK_INTEGER:
+ val._type = OT_INTEGER;
+ val._unVal.nInteger = _lex._nvalue;
+ break;
+ case TK_FLOAT:
+ val._type = OT_FLOAT;
+ val._unVal.fFloat = _lex._fvalue;
+ break;
+ case TK_STRING_LITERAL:
+ val = _fs->CreateString(_lex._svalue,_lex._longstr.size()-1);
+ break;
+ case '-':
+ Lex();
+ switch(_token)
+ {
+ case TK_INTEGER:
+ val._type = OT_INTEGER;
+ val._unVal.nInteger = -_lex._nvalue;
+ break;
+ case TK_FLOAT:
+ val._type = OT_FLOAT;
+ val._unVal.fFloat = -_lex._fvalue;
+ break;
+ default:
+ Error(_SC("scalar expected : integer,float"));
+ }
+ break;
+ default:
+ Error(_SC("scalar expected : integer,float or string"));
+ }
+ Lex();
+ return val;
+ }
+ void EnumStatement()
+ {
+ Lex();
+ SQObject id = Expect(TK_IDENTIFIER);
+ Expect(_SC('{'));
+
+ SQObject table = _fs->CreateTable();
+ SQInteger nval = 0;
+ while(_token != _SC('}')) {
+ SQObject key = Expect(TK_IDENTIFIER);
+ SQObject val;
+ if(_token == _SC('=')) {
+ Lex();
+ val = ExpectScalar();
+ }
+ else {
+ val._type = OT_INTEGER;
+ val._unVal.nInteger = nval++;
+ }
+ _table(table)->NewSlot(SQObjectPtr(key),SQObjectPtr(val));
+ if(_token == ',') Lex();
+ }
+ SQTable *enums = _table(_ss(_vm)->_consts);
+ SQObjectPtr strongid = id;
+ enums->NewSlot(SQObjectPtr(strongid),SQObjectPtr(table));
+ strongid.Null();
+ Lex();
+ }
+ void TryCatchStatement()
+ {
+ SQObject exid;
+ Lex();
+ _fs->AddInstruction(_OP_PUSHTRAP,0,0);
+ _fs->_traps++;
+ if(_fs->_breaktargets.size()) _fs->_breaktargets.top()++;
+ if(_fs->_continuetargets.size()) _fs->_continuetargets.top()++;
+ SQInteger trappos = _fs->GetCurrentPos();
+ {
+ BEGIN_SCOPE();
+ Statement();
+ END_SCOPE();
+ }
+ _fs->_traps--;
+ _fs->AddInstruction(_OP_POPTRAP, 1, 0);
+ if(_fs->_breaktargets.size()) _fs->_breaktargets.top()--;
+ if(_fs->_continuetargets.size()) _fs->_continuetargets.top()--;
+ _fs->AddInstruction(_OP_JMP, 0, 0);
+ SQInteger jmppos = _fs->GetCurrentPos();
+ _fs->SetIntructionParam(trappos, 1, (_fs->GetCurrentPos() - trappos));
+ Expect(TK_CATCH); Expect(_SC('(')); exid = Expect(TK_IDENTIFIER); Expect(_SC(')'));
+ {
+ BEGIN_SCOPE();
+ SQInteger ex_target = _fs->PushLocalVariable(exid);
+ _fs->SetIntructionParam(trappos, 0, ex_target);
+ Statement();
+ _fs->SetIntructionParams(jmppos, 0, (_fs->GetCurrentPos() - jmppos), 0);
+ END_SCOPE();
+ }
+ }
+ void FunctionExp(SQInteger ftype,bool lambda = false)
+ {
+ Lex(); Expect(_SC('('));
+ SQObjectPtr dummy;
+ CreateFunction(dummy,lambda);
+ _fs->AddInstruction(_OP_CLOSURE, _fs->PushTarget(), _fs->_functions.size() - 1, ftype == TK_FUNCTION?0:1);
+ }
+ void ClassExp()
+ {
+ SQInteger base = -1;
+ SQInteger attrs = -1;
+ if(_token == TK_EXTENDS) {
+ Lex(); Expression();
+ base = _fs->TopTarget();
+ }
+ if(_token == TK_ATTR_OPEN) {
+ Lex();
+ _fs->AddInstruction(_OP_NEWOBJ, _fs->PushTarget(),0,NOT_TABLE);
+ ParseTableOrClass(_SC(','),TK_ATTR_CLOSE);
+ attrs = _fs->TopTarget();
+ }
+ Expect(_SC('{'));
+ if(attrs != -1) _fs->PopTarget();
+ if(base != -1) _fs->PopTarget();
+ _fs->AddInstruction(_OP_NEWOBJ, _fs->PushTarget(), base, attrs,NOT_CLASS);
+ ParseTableOrClass(_SC(';'),_SC('}'));
+ }
+ void DeleteExpr()
+ {
+ SQExpState es;
+ Lex();
+ es = _es;
+ _es.donot_get = true;
+ PrefixedExpr();
+ if(_es.etype==EXPR) Error(_SC("can't delete an expression"));
+ if(_es.etype==OBJECT || _es.etype==BASE) {
+ Emit2ArgsOP(_OP_DELETE);
+ }
+ else {
+ Error(_SC("cannot delete an (outer) local"));
+ }
+ _es = es;
+ }
+ void PrefixIncDec(SQInteger token)
+ {
+ SQExpState es;
+ SQInteger diff = (token==TK_MINUSMINUS) ? -1 : 1;
+ Lex();
+ es = _es;
+ _es.donot_get = true;
+ PrefixedExpr();
+ if(_es.etype==EXPR) {
+ Error(_SC("can't '++' or '--' an expression"));
+ }
+ else if(_es.etype==OBJECT || _es.etype==BASE) {
+ Emit2ArgsOP(_OP_INC, diff);
+ }
+ else if(_es.etype==LOCAL) {
+ SQInteger src = _fs->TopTarget();
+ _fs->AddInstruction(_OP_INCL, src, src, 0, diff);
+
+ }
+ else if(_es.etype==OUTER) {
+ SQInteger tmp = _fs->PushTarget();
+ _fs->AddInstruction(_OP_GETOUTER, tmp, _es.epos);
+ _fs->AddInstruction(_OP_INCL, tmp, tmp, 0, diff);
+ _fs->AddInstruction(_OP_SETOUTER, tmp, _es.epos, tmp);
+ }
+ _es = es;
+ }
+ void CreateFunction(SQObject &name,bool lambda = false)
+ {
+ SQFuncState *funcstate = _fs->PushChildState(_ss(_vm));
+ funcstate->_name = name;
+ SQObject paramname;
+ funcstate->AddParameter(_fs->CreateString(_SC("this")));
+ funcstate->_sourcename = _sourcename;
+ SQInteger defparams = 0;
+ while(_token!=_SC(')')) {
+ if(_token == TK_VARPARAMS) {
+ if(defparams > 0) Error(_SC("function with default parameters cannot have variable number of parameters"));
+ funcstate->AddParameter(_fs->CreateString(_SC("vargv")));
+ funcstate->_varparams = true;
+ Lex();
+ if(_token != _SC(')')) Error(_SC("expected ')'"));
+ break;
+ }
+ else {
+ paramname = Expect(TK_IDENTIFIER);
+ funcstate->AddParameter(paramname);
+ if(_token == _SC('=')) {
+ Lex();
+ Expression();
+ funcstate->AddDefaultParam(_fs->TopTarget());
+ defparams++;
+ }
+ else {
+ if(defparams > 0) Error(_SC("expected '='"));
+ }
+ if(_token == _SC(',')) Lex();
+ else if(_token != _SC(')')) Error(_SC("expected ')' or ','"));
+ }
+ }
+ Expect(_SC(')'));
+ for(SQInteger n = 0; n < defparams; n++) {
+ _fs->PopTarget();
+ }
+
+ SQFuncState *currchunk = _fs;
+ _fs = funcstate;
+ if(lambda) {
+ Expression();
+ _fs->AddInstruction(_OP_RETURN, 1, _fs->PopTarget());}
+ else {
+ Statement(false);
+ }
+ funcstate->AddLineInfos(_lex._prevtoken == _SC('\n')?_lex._lasttokenline:_lex._currentline, _lineinfo, true);
+ funcstate->AddInstruction(_OP_RETURN, -1);
+ funcstate->SetStackSize(0);
+
+ SQFunctionProto *func = funcstate->BuildProto();
+#ifdef _DEBUG_DUMP
+ funcstate->Dump(func);
+#endif
+ _fs = currchunk;
+ _fs->_functions.push_back(func);
+ _fs->PopChildState();
+ }
+ void ResolveBreaks(SQFuncState *funcstate, SQInteger ntoresolve)
+ {
+ while(ntoresolve > 0) {
+ SQInteger pos = funcstate->_unresolvedbreaks.back();
+ funcstate->_unresolvedbreaks.pop_back();
+ //set the jmp instruction
+ funcstate->SetIntructionParams(pos, 0, funcstate->GetCurrentPos() - pos, 0);
+ ntoresolve--;
+ }
+ }
+ void ResolveContinues(SQFuncState *funcstate, SQInteger ntoresolve, SQInteger targetpos)
+ {
+ while(ntoresolve > 0) {
+ SQInteger pos = funcstate->_unresolvedcontinues.back();
+ funcstate->_unresolvedcontinues.pop_back();
+ //set the jmp instruction
+ funcstate->SetIntructionParams(pos, 0, targetpos - pos, 0);
+ ntoresolve--;
+ }
+ }
+private:
+ SQInteger _token;
+ SQFuncState *_fs;
+ SQObjectPtr _sourcename;
+ SQLexer _lex;
+ bool _lineinfo;
+ bool _raiseerror;
+ SQInteger _debugline;
+ SQInteger _debugop;
+ SQExpState _es;
+ SQScope _scope;
+ SQChar *compilererror;
+ jmp_buf _errorjmp;
+ SQVM *_vm;
+};
+
+bool Compile(SQVM *vm,SQLEXREADFUNC rg, SQUserPointer up, const SQChar *sourcename, SQObjectPtr &out, bool raiseerror, bool lineinfo)
+{
+ SQCompiler p(vm, rg, up, sourcename, raiseerror, lineinfo);
+ return p.Compile(out);
+}
+
+#endif
diff --git a/squirrel_3_0_1_stable/squirrel/sqcompiler.h b/squirrel_3_0_1_stable/squirrel/sqcompiler.h new file mode 100644 index 000000000..fcfd46a99 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqcompiler.h @@ -0,0 +1,77 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQCOMPILER_H_
+#define _SQCOMPILER_H_
+
+struct SQVM;
+
+#define TK_IDENTIFIER 258
+#define TK_STRING_LITERAL 259
+#define TK_INTEGER 260
+#define TK_FLOAT 261
+#define TK_BASE 262
+#define TK_DELETE 263
+#define TK_EQ 264
+#define TK_NE 265
+#define TK_LE 266
+#define TK_GE 267
+#define TK_SWITCH 268
+#define TK_ARROW 269
+#define TK_AND 270
+#define TK_OR 271
+#define TK_IF 272
+#define TK_ELSE 273
+#define TK_WHILE 274
+#define TK_BREAK 275
+#define TK_FOR 276
+#define TK_DO 277
+#define TK_NULL 278
+#define TK_FOREACH 279
+#define TK_IN 280
+#define TK_NEWSLOT 281
+#define TK_MODULO 282
+#define TK_LOCAL 283
+#define TK_CLONE 284
+#define TK_FUNCTION 285
+#define TK_RETURN 286
+#define TK_TYPEOF 287
+#define TK_UMINUS 288
+#define TK_PLUSEQ 289
+#define TK_MINUSEQ 290
+#define TK_CONTINUE 291
+#define TK_YIELD 292
+#define TK_TRY 293
+#define TK_CATCH 294
+#define TK_THROW 295
+#define TK_SHIFTL 296
+#define TK_SHIFTR 297
+#define TK_RESUME 298
+#define TK_DOUBLE_COLON 299
+#define TK_CASE 300
+#define TK_DEFAULT 301
+#define TK_THIS 302
+#define TK_PLUSPLUS 303
+#define TK_MINUSMINUS 304
+#define TK_3WAYSCMP 305
+#define TK_USHIFTR 306
+#define TK_CLASS 307
+#define TK_EXTENDS 308
+#define TK_CONSTRUCTOR 310
+#define TK_INSTANCEOF 311
+#define TK_VARPARAMS 312
+//#define TK_VARGC 313
+//#define TK_VARGV 314
+#define TK_TRUE 315
+#define TK_FALSE 316
+#define TK_MULEQ 317
+#define TK_DIVEQ 318
+#define TK_MODEQ 319
+#define TK_ATTR_OPEN 320
+#define TK_ATTR_CLOSE 321
+#define TK_STATIC 322
+#define TK_ENUM 323
+#define TK_CONST 324
+
+
+typedef void(*CompilerErrorFunc)(void *ud, const SQChar *s);
+bool Compile(SQVM *vm, SQLEXREADFUNC rg, SQUserPointer up, const SQChar *sourcename, SQObjectPtr &out, bool raiseerror, bool lineinfo);
+#endif //_SQCOMPILER_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqdebug.cpp b/squirrel_3_0_1_stable/squirrel/sqdebug.cpp new file mode 100644 index 000000000..3cb7b71cd --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqdebug.cpp @@ -0,0 +1,116 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#include <stdarg.h>
+#include "sqvm.h"
+#include "sqfuncproto.h"
+#include "sqclosure.h"
+#include "sqstring.h"
+
+SQRESULT sq_getfunctioninfo(HSQUIRRELVM v,SQInteger level,SQFunctionInfo *fi)
+{
+ SQInteger cssize = v->_callsstacksize;
+ if (cssize > level) {
+ SQVM::CallInfo &ci = v->_callsstack[cssize-level-1];
+ if(sq_isclosure(ci._closure)) {
+ SQClosure *c = _closure(ci._closure);
+ SQFunctionProto *proto = c->_function;
+ fi->funcid = proto;
+ fi->name = type(proto->_name) == OT_STRING?_stringval(proto->_name):_SC("unknown");
+ fi->source = type(proto->_name) == OT_STRING?_stringval(proto->_sourcename):_SC("unknown");
+ return SQ_OK;
+ }
+ }
+ return sq_throwerror(v,_SC("the object is not a closure"));
+}
+
+SQRESULT sq_stackinfos(HSQUIRRELVM v, SQInteger level, SQStackInfos *si)
+{
+ SQInteger cssize = v->_callsstacksize;
+ if (cssize > level) {
+ memset(si, 0, sizeof(SQStackInfos));
+ SQVM::CallInfo &ci = v->_callsstack[cssize-level-1];
+ switch (type(ci._closure)) {
+ case OT_CLOSURE:{
+ SQFunctionProto *func = _closure(ci._closure)->_function;
+ if (type(func->_name) == OT_STRING)
+ si->funcname = _stringval(func->_name);
+ if (type(func->_sourcename) == OT_STRING)
+ si->source = _stringval(func->_sourcename);
+ si->line = func->GetLine(ci._ip);
+ }
+ break;
+ case OT_NATIVECLOSURE:
+ si->source = _SC("NATIVE");
+ si->funcname = _SC("unknown");
+ if(type(_nativeclosure(ci._closure)->_name) == OT_STRING)
+ si->funcname = _stringval(_nativeclosure(ci._closure)->_name);
+ si->line = -1;
+ break;
+ default: break; //shutup compiler
+ }
+ return SQ_OK;
+ }
+ return SQ_ERROR;
+}
+
+void SQVM::Raise_Error(const SQChar *s, ...)
+{
+ va_list vl;
+ va_start(vl, s);
+ scvsprintf(_sp(rsl((SQInteger)scstrlen(s)+(NUMBER_MAX_CHAR*2))), s, vl);
+ va_end(vl);
+ _lasterror = SQString::Create(_ss(this),_spval,-1);
+}
+
+void SQVM::Raise_Error(const SQObjectPtr &desc)
+{
+ _lasterror = desc;
+}
+
+SQString *SQVM::PrintObjVal(const SQObjectPtr &o)
+{
+ switch(type(o)) {
+ case OT_STRING: return _string(o);
+ case OT_INTEGER:
+ scsprintf(_sp(rsl(NUMBER_MAX_CHAR+1)), _PRINT_INT_FMT, _integer(o));
+ return SQString::Create(_ss(this), _spval);
+ break;
+ case OT_FLOAT:
+ scsprintf(_sp(rsl(NUMBER_MAX_CHAR+1)), _SC("%.14g"), _float(o));
+ return SQString::Create(_ss(this), _spval);
+ break;
+ default:
+ return SQString::Create(_ss(this), GetTypeName(o));
+ }
+}
+
+void SQVM::Raise_IdxError(const SQObjectPtr &o)
+{
+ SQObjectPtr oval = PrintObjVal(o);
+ Raise_Error(_SC("the index '%.50s' does not exist"), _stringval(oval));
+}
+
+void SQVM::Raise_CompareError(const SQObject &o1, const SQObject &o2)
+{
+ SQObjectPtr oval1 = PrintObjVal(o1), oval2 = PrintObjVal(o2);
+ Raise_Error(_SC("comparsion between '%.50s' and '%.50s'"), _stringval(oval1), _stringval(oval2));
+}
+
+
+void SQVM::Raise_ParamTypeError(SQInteger nparam,SQInteger typemask,SQInteger type)
+{
+ SQObjectPtr exptypes = SQString::Create(_ss(this), _SC(""), -1);
+ SQInteger found = 0;
+ for(SQInteger i=0; i<16; i++)
+ {
+ SQInteger mask = 0x00000001 << i;
+ if(typemask & (mask)) {
+ if(found>0) StringCat(exptypes,SQString::Create(_ss(this), _SC("|"), -1), exptypes);
+ found ++;
+ StringCat(exptypes,SQString::Create(_ss(this), IdType2Name((SQObjectType)mask), -1), exptypes);
+ }
+ }
+ Raise_Error(_SC("parameter %d has an invalid type '%s' ; expected: '%s'"), nparam, IdType2Name((SQObjectType)type), _stringval(exptypes));
+}
diff --git a/squirrel_3_0_1_stable/squirrel/sqfuncproto.h b/squirrel_3_0_1_stable/squirrel/sqfuncproto.h new file mode 100644 index 000000000..cd48aa6df --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqfuncproto.h @@ -0,0 +1,154 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQFUNCTION_H_
+#define _SQFUNCTION_H_
+
+#include "sqopcodes.h"
+
+enum SQOuterType {
+ otLOCAL = 0,
+ otOUTER = 1
+};
+
+struct SQOuterVar
+{
+
+ SQOuterVar(){}
+ SQOuterVar(const SQObjectPtr &name,const SQObjectPtr &src,SQOuterType t)
+ {
+ _name = name;
+ _src=src;
+ _type=t;
+ }
+ SQOuterVar(const SQOuterVar &ov)
+ {
+ _type=ov._type;
+ _src=ov._src;
+ _name=ov._name;
+ }
+ SQOuterType _type;
+ SQObjectPtr _name;
+ SQObjectPtr _src;
+};
+
+struct SQLocalVarInfo
+{
+ SQLocalVarInfo():_start_op(0),_end_op(0),_pos(0){}
+ SQLocalVarInfo(const SQLocalVarInfo &lvi)
+ {
+ _name=lvi._name;
+ _start_op=lvi._start_op;
+ _end_op=lvi._end_op;
+ _pos=lvi._pos;
+ }
+ SQObjectPtr _name;
+ SQUnsignedInteger _start_op;
+ SQUnsignedInteger _end_op;
+ SQUnsignedInteger _pos;
+};
+
+struct SQLineInfo { SQInteger _line;SQInteger _op; };
+
+typedef sqvector<SQOuterVar> SQOuterVarVec;
+typedef sqvector<SQLocalVarInfo> SQLocalVarInfoVec;
+typedef sqvector<SQLineInfo> SQLineInfoVec;
+
+#define _FUNC_SIZE(ni,nl,nparams,nfuncs,nouters,nlineinf,localinf,defparams) (sizeof(SQFunctionProto) \
+ +((ni-1)*sizeof(SQInstruction))+(nl*sizeof(SQObjectPtr)) \
+ +(nparams*sizeof(SQObjectPtr))+(nfuncs*sizeof(SQObjectPtr)) \
+ +(nouters*sizeof(SQOuterVar))+(nlineinf*sizeof(SQLineInfo)) \
+ +(localinf*sizeof(SQLocalVarInfo))+(defparams*sizeof(SQInteger)))
+
+
+struct SQFunctionProto : public CHAINABLE_OBJ
+{
+private:
+ SQFunctionProto(SQSharedState *ss);
+ ~SQFunctionProto();
+
+public:
+ static SQFunctionProto *Create(SQSharedState *ss,SQInteger ninstructions,
+ SQInteger nliterals,SQInteger nparameters,
+ SQInteger nfunctions,SQInteger noutervalues,
+ SQInteger nlineinfos,SQInteger nlocalvarinfos,SQInteger ndefaultparams)
+ {
+ SQFunctionProto *f;
+ //I compact the whole class and members in a single memory allocation
+ f = (SQFunctionProto *)sq_vm_malloc(_FUNC_SIZE(ninstructions,nliterals,nparameters,nfunctions,noutervalues,nlineinfos,nlocalvarinfos,ndefaultparams));
+ new (f) SQFunctionProto(ss);
+ f->_ninstructions = ninstructions;
+ f->_literals = (SQObjectPtr*)&f->_instructions[ninstructions];
+ f->_nliterals = nliterals;
+ f->_parameters = (SQObjectPtr*)&f->_literals[nliterals];
+ f->_nparameters = nparameters;
+ f->_functions = (SQObjectPtr*)&f->_parameters[nparameters];
+ f->_nfunctions = nfunctions;
+ f->_outervalues = (SQOuterVar*)&f->_functions[nfunctions];
+ f->_noutervalues = noutervalues;
+ f->_lineinfos = (SQLineInfo *)&f->_outervalues[noutervalues];
+ f->_nlineinfos = nlineinfos;
+ f->_localvarinfos = (SQLocalVarInfo *)&f->_lineinfos[nlineinfos];
+ f->_nlocalvarinfos = nlocalvarinfos;
+ f->_defaultparams = (SQInteger *)&f->_localvarinfos[nlocalvarinfos];
+ f->_ndefaultparams = ndefaultparams;
+
+ _CONSTRUCT_VECTOR(SQObjectPtr,f->_nliterals,f->_literals);
+ _CONSTRUCT_VECTOR(SQObjectPtr,f->_nparameters,f->_parameters);
+ _CONSTRUCT_VECTOR(SQObjectPtr,f->_nfunctions,f->_functions);
+ _CONSTRUCT_VECTOR(SQOuterVar,f->_noutervalues,f->_outervalues);
+ //_CONSTRUCT_VECTOR(SQLineInfo,f->_nlineinfos,f->_lineinfos); //not required are 2 integers
+ _CONSTRUCT_VECTOR(SQLocalVarInfo,f->_nlocalvarinfos,f->_localvarinfos);
+ return f;
+ }
+ void Release(){
+ _DESTRUCT_VECTOR(SQObjectPtr,_nliterals,_literals);
+ _DESTRUCT_VECTOR(SQObjectPtr,_nparameters,_parameters);
+ _DESTRUCT_VECTOR(SQObjectPtr,_nfunctions,_functions);
+ _DESTRUCT_VECTOR(SQOuterVar,_noutervalues,_outervalues);
+ //_DESTRUCT_VECTOR(SQLineInfo,_nlineinfos,_lineinfos); //not required are 2 integers
+ _DESTRUCT_VECTOR(SQLocalVarInfo,_nlocalvarinfos,_localvarinfos);
+ SQInteger size = _FUNC_SIZE(_ninstructions,_nliterals,_nparameters,_nfunctions,_noutervalues,_nlineinfos,_nlocalvarinfos,_ndefaultparams);
+ this->~SQFunctionProto();
+ sq_vm_free(this,size);
+ }
+
+ const SQChar* GetLocal(SQVM *v,SQUnsignedInteger stackbase,SQUnsignedInteger nseq,SQUnsignedInteger nop);
+ SQInteger GetLine(SQInstruction *curr);
+ bool Save(SQVM *v,SQUserPointer up,SQWRITEFUNC write);
+ static bool Load(SQVM *v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &ret);
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+ void Finalize(){ _NULL_SQOBJECT_VECTOR(_literals,_nliterals); }
+ SQObjectType GetType() {return OT_FUNCPROTO;}
+#endif
+ SQObjectPtr _sourcename;
+ SQObjectPtr _name;
+ SQInteger _stacksize;
+ bool _bgenerator;
+ SQInteger _varparams;
+
+ SQInteger _nlocalvarinfos;
+ SQLocalVarInfo *_localvarinfos;
+
+ SQInteger _nlineinfos;
+ SQLineInfo *_lineinfos;
+
+ SQInteger _nliterals;
+ SQObjectPtr *_literals;
+
+ SQInteger _nparameters;
+ SQObjectPtr *_parameters;
+
+ SQInteger _nfunctions;
+ SQObjectPtr *_functions;
+
+ SQInteger _noutervalues;
+ SQOuterVar *_outervalues;
+
+ SQInteger _ndefaultparams;
+ SQInteger *_defaultparams;
+
+ SQInteger _ninstructions;
+ SQInstruction _instructions[1];
+};
+
+#endif //_SQFUNCTION_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqfuncstate.cpp b/squirrel_3_0_1_stable/squirrel/sqfuncstate.cpp new file mode 100644 index 000000000..9e236c7e7 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqfuncstate.cpp @@ -0,0 +1,652 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#ifndef NO_COMPILER
+#include "sqcompiler.h"
+#include "sqstring.h"
+#include "sqfuncproto.h"
+#include "sqtable.h"
+#include "sqopcodes.h"
+#include "sqfuncstate.h"
+
+#ifdef _DEBUG_DUMP
+SQInstructionDesc g_InstrDesc[]={
+ {_SC("_OP_LINE")},
+ {_SC("_OP_LOAD")},
+ {_SC("_OP_LOADINT")},
+ {_SC("_OP_LOADFLOAT")},
+ {_SC("_OP_DLOAD")},
+ {_SC("_OP_TAILCALL")},
+ {_SC("_OP_CALL")},
+ {_SC("_OP_PREPCALL")},
+ {_SC("_OP_PREPCALLK")},
+ {_SC("_OP_GETK")},
+ {_SC("_OP_MOVE")},
+ {_SC("_OP_NEWSLOT")},
+ {_SC("_OP_DELETE")},
+ {_SC("_OP_SET")},
+ {_SC("_OP_GET")},
+ {_SC("_OP_EQ")},
+ {_SC("_OP_NE")},
+ {_SC("_OP_ADD")},
+ {_SC("_OP_SUB")},
+ {_SC("_OP_MUL")},
+ {_SC("_OP_DIV")},
+ {_SC("_OP_MOD")},
+ {_SC("_OP_BITW")},
+ {_SC("_OP_RETURN")},
+ {_SC("_OP_LOADNULLS")},
+ {_SC("_OP_LOADROOT")},
+ {_SC("_OP_LOADBOOL")},
+ {_SC("_OP_DMOVE")},
+ {_SC("_OP_JMP")},
+ {_SC("_OP_JCMP")},
+ {_SC("_OP_JZ")},
+ {_SC("_OP_SETOUTER")},
+ {_SC("_OP_GETOUTER")},
+ {_SC("_OP_NEWOBJ")},
+ {_SC("_OP_APPENDARRAY")},
+ {_SC("_OP_COMPARITH")},
+ {_SC("_OP_INC")},
+ {_SC("_OP_INCL")},
+ {_SC("_OP_PINC")},
+ {_SC("_OP_PINCL")},
+ {_SC("_OP_CMP")},
+ {_SC("_OP_EXISTS")},
+ {_SC("_OP_INSTANCEOF")},
+ {_SC("_OP_AND")},
+ {_SC("_OP_OR")},
+ {_SC("_OP_NEG")},
+ {_SC("_OP_NOT")},
+ {_SC("_OP_BWNOT")},
+ {_SC("_OP_CLOSURE")},
+ {_SC("_OP_YIELD")},
+ {_SC("_OP_RESUME")},
+ {_SC("_OP_FOREACH")},
+ {_SC("_OP_POSTFOREACH")},
+ {_SC("_OP_CLONE")},
+ {_SC("_OP_TYPEOF")},
+ {_SC("_OP_PUSHTRAP")},
+ {_SC("_OP_POPTRAP")},
+ {_SC("_OP_THROW")},
+ {_SC("_OP_NEWSLOTA")},
+ {_SC("_OP_GETBASE")},
+ {_SC("_OP_CLOSE")},
+ {_SC("_OP_JCMP")}
+};
+#endif
+void DumpLiteral(SQObjectPtr &o)
+{
+ switch(type(o)){
+ case OT_STRING: scprintf(_SC("\"%s\""),_stringval(o));break;
+ case OT_FLOAT: scprintf(_SC("{%f}"),_float(o));break;
+ case OT_INTEGER: scprintf(_SC("{") _PRINT_INT_FMT _SC("}"),_integer(o));break;
+ case OT_BOOL: scprintf(_SC("%s"),_integer(o)?_SC("true"):_SC("false"));break;
+ default: scprintf(_SC("(%s %p)"),GetTypeName(o),(void*)_rawval(o));break; break; //shut up compiler
+ }
+}
+
+SQFuncState::SQFuncState(SQSharedState *ss,SQFuncState *parent,CompilerErrorFunc efunc,void *ed)
+{
+ _nliterals = 0;
+ _literals = SQTable::Create(ss,0);
+ _strings = SQTable::Create(ss,0);
+ _sharedstate = ss;
+ _lastline = 0;
+ _optimization = true;
+ _parent = parent;
+ _stacksize = 0;
+ _traps = 0;
+ _returnexp = 0;
+ _varparams = false;
+ _errfunc = efunc;
+ _errtarget = ed;
+ _bgenerator = false;
+ _outers = 0;
+ _ss = ss;
+
+}
+
+void SQFuncState::Error(const SQChar *err)
+{
+ _errfunc(_errtarget,err);
+}
+
+#ifdef _DEBUG_DUMP
+void SQFuncState::Dump(SQFunctionProto *func)
+{
+ SQUnsignedInteger n=0,i;
+ SQInteger si;
+ scprintf(_SC("SQInstruction sizeof %d\n"),sizeof(SQInstruction));
+ scprintf(_SC("SQObject sizeof %d\n"),sizeof(SQObject));
+ scprintf(_SC("--------------------------------------------------------------------\n"));
+ scprintf(_SC("*****FUNCTION [%s]\n"),type(func->_name)==OT_STRING?_stringval(func->_name):_SC("unknown"));
+ scprintf(_SC("-----LITERALS\n"));
+ SQObjectPtr refidx,key,val;
+ SQInteger idx;
+ SQObjectPtrVec templiterals;
+ templiterals.resize(_nliterals);
+ while((idx=_table(_literals)->Next(false,refidx,key,val))!=-1) {
+ refidx=idx;
+ templiterals[_integer(val)]=key;
+ }
+ for(i=0;i<templiterals.size();i++){
+ scprintf(_SC("[%d] "),n);
+ DumpLiteral(templiterals[i]);
+ scprintf(_SC("\n"));
+ n++;
+ }
+ scprintf(_SC("-----PARAMS\n"));
+ if(_varparams)
+ scprintf(_SC("<<VARPARAMS>>\n"));
+ n=0;
+ for(i=0;i<_parameters.size();i++){
+ scprintf(_SC("[%d] "),n);
+ DumpLiteral(_parameters[i]);
+ scprintf(_SC("\n"));
+ n++;
+ }
+ scprintf(_SC("-----LOCALS\n"));
+ for(si=0;si<func->_nlocalvarinfos;si++){
+ SQLocalVarInfo lvi=func->_localvarinfos[si];
+ scprintf(_SC("[%d] %s \t%d %d\n"),lvi._pos,_stringval(lvi._name),lvi._start_op,lvi._end_op);
+ n++;
+ }
+ scprintf(_SC("-----LINE INFO\n"));
+ for(i=0;i<_lineinfos.size();i++){
+ SQLineInfo li=_lineinfos[i];
+ scprintf(_SC("op [%d] line [%d] \n"),li._op,li._line);
+ n++;
+ }
+ scprintf(_SC("-----dump\n"));
+ n=0;
+ for(i=0;i<_instructions.size();i++){
+ SQInstruction &inst=_instructions[i];
+ if(inst.op==_OP_LOAD || inst.op==_OP_DLOAD || inst.op==_OP_PREPCALLK || inst.op==_OP_GETK ){
+
+ SQInteger lidx = inst._arg1;
+ scprintf(_SC("[%03d] %15s %d "),n,g_InstrDesc[inst.op].name,inst._arg0);
+ if(lidx >= 0xFFFFFFFF)
+ scprintf(_SC("null"));
+ else {
+ SQInteger refidx;
+ SQObjectPtr val,key,refo;
+ while(((refidx=_table(_literals)->Next(false,refo,key,val))!= -1) && (_integer(val) != lidx)) {
+ refo = refidx;
+ }
+ DumpLiteral(key);
+ }
+ if(inst.op != _OP_DLOAD) {
+ scprintf(_SC(" %d %d \n"),inst._arg2,inst._arg3);
+ }
+ else {
+ scprintf(_SC(" %d "),inst._arg2);
+ lidx = inst._arg3;
+ if(lidx >= 0xFFFFFFFF)
+ scprintf(_SC("null"));
+ else {
+ SQInteger refidx;
+ SQObjectPtr val,key,refo;
+ while(((refidx=_table(_literals)->Next(false,refo,key,val))!= -1) && (_integer(val) != lidx)) {
+ refo = refidx;
+ }
+ DumpLiteral(key);
+ scprintf(_SC("\n"));
+ }
+ }
+ }
+ else if(inst.op==_OP_LOADFLOAT) {
+ scprintf(_SC("[%03d] %15s %d %f %d %d\n"),n,g_InstrDesc[inst.op].name,inst._arg0,*((SQFloat*)&inst._arg1),inst._arg2,inst._arg3);
+ }
+ /* else if(inst.op==_OP_ARITH){
+ scprintf(_SC("[%03d] %15s %d %d %d %c\n"),n,g_InstrDesc[inst.op].name,inst._arg0,inst._arg1,inst._arg2,inst._arg3);
+ }*/
+ else {
+ scprintf(_SC("[%03d] %15s %d %d %d %d\n"),n,g_InstrDesc[inst.op].name,inst._arg0,inst._arg1,inst._arg2,inst._arg3);
+ }
+ n++;
+ }
+ scprintf(_SC("-----\n"));
+ scprintf(_SC("stack size[%d]\n"),func->_stacksize);
+ scprintf(_SC("--------------------------------------------------------------------\n\n"));
+}
+#endif
+
+SQInteger SQFuncState::GetNumericConstant(const SQInteger cons)
+{
+ return GetConstant(SQObjectPtr(cons));
+}
+
+SQInteger SQFuncState::GetNumericConstant(const SQFloat cons)
+{
+ return GetConstant(SQObjectPtr(cons));
+}
+
+SQInteger SQFuncState::GetConstant(const SQObject &cons)
+{
+ SQObjectPtr val;
+ if(!_table(_literals)->Get(cons,val))
+ {
+ val = _nliterals;
+ _table(_literals)->NewSlot(cons,val);
+ _nliterals++;
+ if(_nliterals > MAX_LITERALS) {
+ val.Null();
+ Error(_SC("internal compiler error: too many literals"));
+ }
+ }
+ return _integer(val);
+}
+
+void SQFuncState::SetIntructionParams(SQInteger pos,SQInteger arg0,SQInteger arg1,SQInteger arg2,SQInteger arg3)
+{
+ _instructions[pos]._arg0=(unsigned char)*((SQUnsignedInteger *)&arg0);
+ _instructions[pos]._arg1=(SQInt32)*((SQUnsignedInteger *)&arg1);
+ _instructions[pos]._arg2=(unsigned char)*((SQUnsignedInteger *)&arg2);
+ _instructions[pos]._arg3=(unsigned char)*((SQUnsignedInteger *)&arg3);
+}
+
+void SQFuncState::SetIntructionParam(SQInteger pos,SQInteger arg,SQInteger val)
+{
+ switch(arg){
+ case 0:_instructions[pos]._arg0=(unsigned char)*((SQUnsignedInteger *)&val);break;
+ case 1:case 4:_instructions[pos]._arg1=(SQInt32)*((SQUnsignedInteger *)&val);break;
+ case 2:_instructions[pos]._arg2=(unsigned char)*((SQUnsignedInteger *)&val);break;
+ case 3:_instructions[pos]._arg3=(unsigned char)*((SQUnsignedInteger *)&val);break;
+ };
+}
+
+SQInteger SQFuncState::AllocStackPos()
+{
+ SQInteger npos=_vlocals.size();
+ _vlocals.push_back(SQLocalVarInfo());
+ if(_vlocals.size()>((SQUnsignedInteger)_stacksize)) {
+ if(_stacksize>MAX_FUNC_STACKSIZE) Error(_SC("internal compiler error: too many locals"));
+ _stacksize=_vlocals.size();
+ }
+ return npos;
+}
+
+SQInteger SQFuncState::PushTarget(SQInteger n)
+{
+ if(n!=-1){
+ _targetstack.push_back(n);
+ return n;
+ }
+ n=AllocStackPos();
+ _targetstack.push_back(n);
+ return n;
+}
+
+SQInteger SQFuncState::GetUpTarget(SQInteger n){
+ return _targetstack[((_targetstack.size()-1)-n)];
+}
+
+SQInteger SQFuncState::TopTarget(){
+ return _targetstack.back();
+}
+SQInteger SQFuncState::PopTarget()
+{
+ SQInteger npos=_targetstack.back();
+ SQLocalVarInfo &t=_vlocals[_targetstack.back()];
+ if(type(t._name)==OT_NULL){
+ _vlocals.pop_back();
+ }
+ _targetstack.pop_back();
+ return npos;
+}
+
+SQInteger SQFuncState::GetStackSize()
+{
+ return _vlocals.size();
+}
+
+SQInteger SQFuncState::CountOuters(SQInteger stacksize)
+{
+ SQInteger outers = 0;
+ SQInteger k = _vlocals.size() - 1;
+ while(k >= stacksize) {
+ SQLocalVarInfo &lvi = _vlocals[k];
+ k--;
+ if(lvi._end_op == UINT_MINUS_ONE) { //this means is an outer
+ outers++;
+ }
+ }
+ return outers;
+}
+
+void SQFuncState::SetStackSize(SQInteger n)
+{
+ SQInteger size=_vlocals.size();
+ while(size>n){
+ size--;
+ SQLocalVarInfo lvi = _vlocals.back();
+ if(type(lvi._name)!=OT_NULL){
+ if(lvi._end_op == UINT_MINUS_ONE) { //this means is an outer
+ _outers--;
+ }
+ lvi._end_op = GetCurrentPos();
+ _localvarinfos.push_back(lvi);
+ }
+ _vlocals.pop_back();
+ }
+}
+
+bool SQFuncState::IsConstant(const SQObject &name,SQObject &e)
+{
+ SQObjectPtr val;
+ if(_table(_sharedstate->_consts)->Get(name,val)) {
+ e = val;
+ return true;
+ }
+ return false;
+}
+
+bool SQFuncState::IsLocal(SQUnsignedInteger stkpos)
+{
+ if(stkpos>=_vlocals.size())return false;
+ else if(type(_vlocals[stkpos]._name)!=OT_NULL)return true;
+ return false;
+}
+
+SQInteger SQFuncState::PushLocalVariable(const SQObject &name)
+{
+ SQInteger pos=_vlocals.size();
+ SQLocalVarInfo lvi;
+ lvi._name=name;
+ lvi._start_op=GetCurrentPos()+1;
+ lvi._pos=_vlocals.size();
+ _vlocals.push_back(lvi);
+ if(_vlocals.size()>((SQUnsignedInteger)_stacksize))_stacksize=_vlocals.size();
+ return pos;
+}
+
+
+
+SQInteger SQFuncState::GetLocalVariable(const SQObject &name)
+{
+ SQInteger locals=_vlocals.size();
+ while(locals>=1){
+ SQLocalVarInfo &lvi = _vlocals[locals-1];
+ if(type(lvi._name)==OT_STRING && _string(lvi._name)==_string(name)){
+ return locals-1;
+ }
+ locals--;
+ }
+ return -1;
+}
+
+void SQFuncState::MarkLocalAsOuter(SQInteger pos)
+{
+ SQLocalVarInfo &lvi = _vlocals[pos];
+ lvi._end_op = UINT_MINUS_ONE;
+ _outers++;
+}
+
+SQInteger SQFuncState::GetOuterVariable(const SQObject &name)
+{
+ SQInteger outers = _outervalues.size();
+ for(SQInteger i = 0; i<outers; i++) {
+ if(_string(_outervalues[i]._name) == _string(name))
+ return i;
+ }
+ SQInteger pos=-1;
+ if(_parent) {
+ pos = _parent->GetLocalVariable(name);
+ if(pos == -1) {
+ pos = _parent->GetOuterVariable(name);
+ if(pos != -1) {
+ _outervalues.push_back(SQOuterVar(name,SQObjectPtr(SQInteger(pos)),otOUTER)); //local
+ return _outervalues.size() - 1;
+ }
+ }
+ else {
+ _parent->MarkLocalAsOuter(pos);
+ _outervalues.push_back(SQOuterVar(name,SQObjectPtr(SQInteger(pos)),otLOCAL)); //local
+ return _outervalues.size() - 1;
+
+
+ }
+ }
+ return -1;
+}
+
+void SQFuncState::AddParameter(const SQObject &name)
+{
+ PushLocalVariable(name);
+ _parameters.push_back(name);
+}
+
+void SQFuncState::AddLineInfos(SQInteger line,bool lineop,bool force)
+{
+ if(_lastline!=line || force){
+ SQLineInfo li;
+ li._line=line;li._op=(GetCurrentPos()+1);
+ if(lineop)AddInstruction(_OP_LINE,0,line);
+ if(_lastline!=line) {
+ _lineinfos.push_back(li);
+ }
+ _lastline=line;
+ }
+}
+
+void SQFuncState::DiscardTarget()
+{
+ SQInteger discardedtarget = PopTarget();
+ SQInteger size = _instructions.size();
+ if(size > 0 && _optimization){
+ SQInstruction &pi = _instructions[size-1];//previous instruction
+ switch(pi.op) {
+ case _OP_SET:case _OP_NEWSLOT:case _OP_SETOUTER:case _OP_CALL:
+ if(pi._arg0 == discardedtarget) {
+ pi._arg0 = 0xFF;
+ }
+ }
+ }
+}
+
+void SQFuncState::AddInstruction(SQInstruction &i)
+{
+ SQInteger size = _instructions.size();
+ if(size > 0 && _optimization){ //simple optimizer
+ SQInstruction &pi = _instructions[size-1];//previous instruction
+ switch(i.op) {
+ case _OP_JZ:
+ if( pi.op == _OP_CMP && pi._arg1 < 0xFF) {
+ pi.op = _OP_JCMP;
+ pi._arg0 = (unsigned char)pi._arg1;
+ pi._arg1 = i._arg1;
+ return;
+ }
+ case _OP_SET:
+ case _OP_NEWSLOT:
+ if(i._arg0 == i._arg3) {
+ i._arg0 = 0xFF;
+ }
+ break;
+ case _OP_SETOUTER:
+ if(i._arg0 == i._arg2) {
+ i._arg0 = 0xFF;
+ }
+ break;
+ case _OP_RETURN:
+ if( _parent && i._arg0 != MAX_FUNC_STACKSIZE && pi.op == _OP_CALL && _returnexp < size-1) {
+ pi.op = _OP_TAILCALL;
+ } else if(pi.op == _OP_CLOSE){
+ pi = i;
+ return;
+ }
+ break;
+ case _OP_GET:
+ if( pi.op == _OP_LOAD && pi._arg0 == i._arg2 && (!IsLocal(pi._arg0))){
+ pi._arg1 = pi._arg1;
+ pi._arg2 = (unsigned char)i._arg1;
+ pi.op = _OP_GETK;
+ pi._arg0 = i._arg0;
+
+ return;
+ }
+ break;
+ case _OP_PREPCALL:
+ if( pi.op == _OP_LOAD && pi._arg0 == i._arg1 && (!IsLocal(pi._arg0))){
+ pi.op = _OP_PREPCALLK;
+ pi._arg0 = i._arg0;
+ pi._arg1 = pi._arg1;
+ pi._arg2 = i._arg2;
+ pi._arg3 = i._arg3;
+ return;
+ }
+ break;
+ case _OP_APPENDARRAY: {
+ SQInteger aat = -1;
+ switch(pi.op) {
+ case _OP_LOAD: aat = AAT_LITERAL; break;
+ case _OP_LOADINT: aat = AAT_INT; break;
+ case _OP_LOADBOOL: aat = AAT_BOOL; break;
+ case _OP_LOADFLOAT: aat = AAT_FLOAT; break;
+ default: break;
+ }
+ if(aat != -1 && pi._arg0 == i._arg1 && (!IsLocal(pi._arg0))){
+ pi.op = _OP_APPENDARRAY;
+ pi._arg0 = i._arg0;
+ pi._arg1 = pi._arg1;
+ pi._arg2 = (unsigned char)aat;
+ pi._arg3 = MAX_FUNC_STACKSIZE;
+ return;
+ }
+ }
+ break;
+ case _OP_MOVE:
+ switch(pi.op) {
+ case _OP_GET: case _OP_ADD: case _OP_SUB: case _OP_MUL: case _OP_DIV: case _OP_MOD: case _OP_BITW:
+ case _OP_LOADINT: case _OP_LOADFLOAT: case _OP_LOADBOOL: case _OP_LOAD:
+
+ if(pi._arg0 == i._arg1)
+ {
+ pi._arg0 = i._arg0;
+ _optimization = false;
+ //_result_elimination = false;
+ return;
+ }
+ }
+
+ if(pi.op == _OP_MOVE)
+ {
+ pi.op = _OP_DMOVE;
+ pi._arg2 = i._arg0;
+ pi._arg3 = (unsigned char)i._arg1;
+ return;
+ }
+ break;
+ case _OP_LOAD:
+ if(pi.op == _OP_LOAD && i._arg1 < 256) {
+ pi.op = _OP_DLOAD;
+ pi._arg2 = i._arg0;
+ pi._arg3 = (unsigned char)i._arg1;
+ return;
+ }
+ break;
+ case _OP_EQ:case _OP_NE:
+ if(pi.op == _OP_LOAD && pi._arg0 == i._arg1 && (!IsLocal(pi._arg0) ))
+ {
+ pi.op = i.op;
+ pi._arg0 = i._arg0;
+ pi._arg1 = pi._arg1;
+ pi._arg2 = i._arg2;
+ pi._arg3 = MAX_FUNC_STACKSIZE;
+ return;
+ }
+ break;
+ case _OP_LOADNULLS:
+ if((pi.op == _OP_LOADNULLS && pi._arg0+pi._arg1 == i._arg0)) {
+
+ pi._arg1 = pi._arg1 + 1;
+ pi.op = _OP_LOADNULLS;
+ return;
+ }
+ break;
+ case _OP_LINE:
+ if(pi.op == _OP_LINE) {
+ _instructions.pop_back();
+ _lineinfos.pop_back();
+ }
+ break;
+ }
+ }
+ _optimization = true;
+ _instructions.push_back(i);
+}
+
+SQObject SQFuncState::CreateString(const SQChar *s,SQInteger len)
+{
+ SQObjectPtr ns(SQString::Create(_sharedstate,s,len));
+ _table(_strings)->NewSlot(ns,(SQInteger)1);
+ return ns;
+}
+
+SQObject SQFuncState::CreateTable()
+{
+ SQObjectPtr nt(SQTable::Create(_sharedstate,0));
+ _table(_strings)->NewSlot(nt,(SQInteger)1);
+ return nt;
+}
+
+SQFunctionProto *SQFuncState::BuildProto()
+{
+
+ SQFunctionProto *f=SQFunctionProto::Create(_ss,_instructions.size(),
+ _nliterals,_parameters.size(),_functions.size(),_outervalues.size(),
+ _lineinfos.size(),_localvarinfos.size(),_defaultparams.size());
+
+ SQObjectPtr refidx,key,val;
+ SQInteger idx;
+
+ f->_stacksize = _stacksize;
+ f->_sourcename = _sourcename;
+ f->_bgenerator = _bgenerator;
+ f->_name = _name;
+
+ while((idx=_table(_literals)->Next(false,refidx,key,val))!=-1) {
+ f->_literals[_integer(val)]=key;
+ refidx=idx;
+ }
+
+ for(SQUnsignedInteger nf = 0; nf < _functions.size(); nf++) f->_functions[nf] = _functions[nf];
+ for(SQUnsignedInteger np = 0; np < _parameters.size(); np++) f->_parameters[np] = _parameters[np];
+ for(SQUnsignedInteger no = 0; no < _outervalues.size(); no++) f->_outervalues[no] = _outervalues[no];
+ for(SQUnsignedInteger nl = 0; nl < _localvarinfos.size(); nl++) f->_localvarinfos[nl] = _localvarinfos[nl];
+ for(SQUnsignedInteger ni = 0; ni < _lineinfos.size(); ni++) f->_lineinfos[ni] = _lineinfos[ni];
+ for(SQUnsignedInteger nd = 0; nd < _defaultparams.size(); nd++) f->_defaultparams[nd] = _defaultparams[nd];
+
+ memcpy(f->_instructions,&_instructions[0],_instructions.size()*sizeof(SQInstruction));
+
+ f->_varparams = _varparams;
+
+ return f;
+}
+
+SQFuncState *SQFuncState::PushChildState(SQSharedState *ss)
+{
+ SQFuncState *child = (SQFuncState *)sq_malloc(sizeof(SQFuncState));
+ new (child) SQFuncState(ss,this,_errfunc,_errtarget);
+ _childstates.push_back(child);
+ return child;
+}
+
+void SQFuncState::PopChildState()
+{
+ SQFuncState *child = _childstates.back();
+ sq_delete(child,SQFuncState);
+ _childstates.pop_back();
+}
+
+SQFuncState::~SQFuncState()
+{
+ while(_childstates.size() > 0)
+ {
+ PopChildState();
+ }
+}
+
+#endif
diff --git a/squirrel_3_0_1_stable/squirrel/sqfuncstate.h b/squirrel_3_0_1_stable/squirrel/sqfuncstate.h new file mode 100644 index 000000000..1da13212a --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqfuncstate.h @@ -0,0 +1,91 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQFUNCSTATE_H_
+#define _SQFUNCSTATE_H_
+///////////////////////////////////
+#include "squtils.h"
+
+struct SQFuncState
+{
+ SQFuncState(SQSharedState *ss,SQFuncState *parent,CompilerErrorFunc efunc,void *ed);
+ ~SQFuncState();
+#ifdef _DEBUG_DUMP
+ void Dump(SQFunctionProto *func);
+#endif
+ void Error(const SQChar *err);
+ SQFuncState *PushChildState(SQSharedState *ss);
+ void PopChildState();
+ void AddInstruction(SQOpcode _op,SQInteger arg0=0,SQInteger arg1=0,SQInteger arg2=0,SQInteger arg3=0){SQInstruction i(_op,arg0,arg1,arg2,arg3);AddInstruction(i);}
+ void AddInstruction(SQInstruction &i);
+ void SetIntructionParams(SQInteger pos,SQInteger arg0,SQInteger arg1,SQInteger arg2=0,SQInteger arg3=0);
+ void SetIntructionParam(SQInteger pos,SQInteger arg,SQInteger val);
+ SQInstruction &GetInstruction(SQInteger pos){return _instructions[pos];}
+ void PopInstructions(SQInteger size){for(SQInteger i=0;i<size;i++)_instructions.pop_back();}
+ void SetStackSize(SQInteger n);
+ SQInteger CountOuters(SQInteger stacksize);
+ void SnoozeOpt(){_optimization=false;}
+ void AddDefaultParam(SQInteger trg) { _defaultparams.push_back(trg); }
+ SQInteger GetDefaultParamCount() { return _defaultparams.size(); }
+ SQInteger GetCurrentPos(){return _instructions.size()-1;}
+ SQInteger GetNumericConstant(const SQInteger cons);
+ SQInteger GetNumericConstant(const SQFloat cons);
+ SQInteger PushLocalVariable(const SQObject &name);
+ void AddParameter(const SQObject &name);
+ //void AddOuterValue(const SQObject &name);
+ SQInteger GetLocalVariable(const SQObject &name);
+ void MarkLocalAsOuter(SQInteger pos);
+ SQInteger GetOuterVariable(const SQObject &name);
+ SQInteger GenerateCode();
+ SQInteger GetStackSize();
+ SQInteger CalcStackFrameSize();
+ void AddLineInfos(SQInteger line,bool lineop,bool force=false);
+ SQFunctionProto *BuildProto();
+ SQInteger AllocStackPos();
+ SQInteger PushTarget(SQInteger n=-1);
+ SQInteger PopTarget();
+ SQInteger TopTarget();
+ SQInteger GetUpTarget(SQInteger n);
+ void DiscardTarget();
+ bool IsLocal(SQUnsignedInteger stkpos);
+ SQObject CreateString(const SQChar *s,SQInteger len = -1);
+ SQObject CreateTable();
+ bool IsConstant(const SQObject &name,SQObject &e);
+ SQInteger _returnexp;
+ SQLocalVarInfoVec _vlocals;
+ SQIntVec _targetstack;
+ SQInteger _stacksize;
+ bool _varparams;
+ bool _bgenerator;
+ SQIntVec _unresolvedbreaks;
+ SQIntVec _unresolvedcontinues;
+ SQObjectPtrVec _functions;
+ SQObjectPtrVec _parameters;
+ SQOuterVarVec _outervalues;
+ SQInstructionVec _instructions;
+ SQLocalVarInfoVec _localvarinfos;
+ SQObjectPtr _literals;
+ SQObjectPtr _strings;
+ SQObjectPtr _name;
+ SQObjectPtr _sourcename;
+ SQInteger _nliterals;
+ SQLineInfoVec _lineinfos;
+ SQFuncState *_parent;
+ SQIntVec _scope_blocks;
+ SQIntVec _breaktargets;
+ SQIntVec _continuetargets;
+ SQIntVec _defaultparams;
+ SQInteger _lastline;
+ SQInteger _traps; //contains number of nested exception traps
+ SQInteger _outers;
+ bool _optimization;
+ SQSharedState *_sharedstate;
+ sqvector<SQFuncState*> _childstates;
+ SQInteger GetConstant(const SQObject &cons);
+private:
+ CompilerErrorFunc _errfunc;
+ void *_errtarget;
+ SQSharedState *_ss;
+};
+
+
+#endif //_SQFUNCSTATE_H_
+
diff --git a/squirrel_3_0_1_stable/squirrel/sqlexer.cpp b/squirrel_3_0_1_stable/squirrel/sqlexer.cpp new file mode 100644 index 000000000..ab17ba619 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqlexer.cpp @@ -0,0 +1,489 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#include <ctype.h>
+#include <stdlib.h>
+#include "sqtable.h"
+#include "sqstring.h"
+#include "sqcompiler.h"
+#include "sqlexer.h"
+
+#define CUR_CHAR (_currdata)
+#define RETURN_TOKEN(t) { _prevtoken = _curtoken; _curtoken = t; return t;}
+#define IS_EOB() (CUR_CHAR <= SQUIRREL_EOB)
+#define NEXT() {Next();_currentcolumn++;}
+#define INIT_TEMP_STRING() { _longstr.resize(0);}
+#define APPEND_CHAR(c) { _longstr.push_back(c);}
+#define TERMINATE_BUFFER() {_longstr.push_back(_SC('\0'));}
+#define ADD_KEYWORD(key,id) _keywords->NewSlot( SQString::Create(ss, _SC(#key)) ,SQInteger(id))
+
+SQLexer::SQLexer(){}
+SQLexer::~SQLexer()
+{
+ _keywords->Release();
+}
+
+void SQLexer::Init(SQSharedState *ss, SQLEXREADFUNC rg, SQUserPointer up,CompilerErrorFunc efunc,void *ed)
+{
+ _errfunc = efunc;
+ _errtarget = ed;
+ _sharedstate = ss;
+ _keywords = SQTable::Create(ss, 26);
+ ADD_KEYWORD(while, TK_WHILE);
+ ADD_KEYWORD(do, TK_DO);
+ ADD_KEYWORD(if, TK_IF);
+ ADD_KEYWORD(else, TK_ELSE);
+ ADD_KEYWORD(break, TK_BREAK);
+ ADD_KEYWORD(continue, TK_CONTINUE);
+ ADD_KEYWORD(return, TK_RETURN);
+ ADD_KEYWORD(null, TK_NULL);
+ ADD_KEYWORD(function, TK_FUNCTION);
+ ADD_KEYWORD(local, TK_LOCAL);
+ ADD_KEYWORD(for, TK_FOR);
+ ADD_KEYWORD(foreach, TK_FOREACH);
+ ADD_KEYWORD(in, TK_IN);
+ ADD_KEYWORD(typeof, TK_TYPEOF);
+ ADD_KEYWORD(base, TK_BASE);
+ ADD_KEYWORD(delete, TK_DELETE);
+ ADD_KEYWORD(try, TK_TRY);
+ ADD_KEYWORD(catch, TK_CATCH);
+ ADD_KEYWORD(throw, TK_THROW);
+ ADD_KEYWORD(clone, TK_CLONE);
+ ADD_KEYWORD(yield, TK_YIELD);
+ ADD_KEYWORD(resume, TK_RESUME);
+ ADD_KEYWORD(switch, TK_SWITCH);
+ ADD_KEYWORD(case, TK_CASE);
+ ADD_KEYWORD(default, TK_DEFAULT);
+ ADD_KEYWORD(this, TK_THIS);
+ ADD_KEYWORD(class,TK_CLASS);
+ ADD_KEYWORD(extends,TK_EXTENDS);
+ ADD_KEYWORD(constructor,TK_CONSTRUCTOR);
+ ADD_KEYWORD(instanceof,TK_INSTANCEOF);
+ ADD_KEYWORD(true,TK_TRUE);
+ ADD_KEYWORD(false,TK_FALSE);
+ ADD_KEYWORD(static,TK_STATIC);
+ ADD_KEYWORD(enum,TK_ENUM);
+ ADD_KEYWORD(const,TK_CONST);
+
+ _readf = rg;
+ _up = up;
+ _lasttokenline = _currentline = 1;
+ _currentcolumn = 0;
+ _prevtoken = -1;
+ _reached_eof = SQFalse;
+ Next();
+}
+
+void SQLexer::Error(const SQChar *err)
+{
+ _errfunc(_errtarget,err);
+}
+
+void SQLexer::Next()
+{
+ SQInteger t = _readf(_up);
+ if(t > MAX_CHAR) Error(_SC("Invalid character"));
+ if(t != 0) {
+ _currdata = (LexChar)t;
+ return;
+ }
+ _currdata = SQUIRREL_EOB;
+ _reached_eof = SQTrue;
+}
+
+const SQChar *SQLexer::Tok2Str(SQInteger tok)
+{
+ SQObjectPtr itr, key, val;
+ SQInteger nitr;
+ while((nitr = _keywords->Next(false,itr, key, val)) != -1) {
+ itr = (SQInteger)nitr;
+ if(((SQInteger)_integer(val)) == tok)
+ return _stringval(key);
+ }
+ return NULL;
+}
+
+void SQLexer::LexBlockComment()
+{
+ bool done = false;
+ while(!done) {
+ switch(CUR_CHAR) {
+ case _SC('*'): { NEXT(); if(CUR_CHAR == _SC('/')) { done = true; NEXT(); }}; continue;
+ case _SC('\n'): _currentline++; NEXT(); continue;
+ case SQUIRREL_EOB: Error(_SC("missing \"*/\" in comment"));
+ default: NEXT();
+ }
+ }
+}
+void SQLexer::LexLineComment()
+{
+ do { NEXT(); } while (CUR_CHAR != _SC('\n') && (!IS_EOB()));
+}
+
+SQInteger SQLexer::Lex()
+{
+ _lasttokenline = _currentline;
+ while(CUR_CHAR != SQUIRREL_EOB) {
+ switch(CUR_CHAR){
+ case _SC('\t'): case _SC('\r'): case _SC(' '): NEXT(); continue;
+ case _SC('\n'):
+ _currentline++;
+ _prevtoken=_curtoken;
+ _curtoken=_SC('\n');
+ NEXT();
+ _currentcolumn=1;
+ continue;
+ case _SC('#'): LexLineComment(); continue;
+ case _SC('/'):
+ NEXT();
+ switch(CUR_CHAR){
+ case _SC('*'):
+ NEXT();
+ LexBlockComment();
+ continue;
+ case _SC('/'):
+ LexLineComment();
+ continue;
+ case _SC('='):
+ NEXT();
+ RETURN_TOKEN(TK_DIVEQ);
+ continue;
+ case _SC('>'):
+ NEXT();
+ RETURN_TOKEN(TK_ATTR_CLOSE);
+ continue;
+ default:
+ RETURN_TOKEN('/');
+ }
+ case _SC('='):
+ NEXT();
+ if (CUR_CHAR != _SC('=')){ RETURN_TOKEN('=') }
+ else { NEXT(); RETURN_TOKEN(TK_EQ); }
+ case _SC('<'):
+ NEXT();
+ switch(CUR_CHAR) {
+ case _SC('='):
+ NEXT();
+ if(CUR_CHAR == _SC('>')) {
+ NEXT();
+ RETURN_TOKEN(TK_3WAYSCMP);
+ }
+ RETURN_TOKEN(TK_LE)
+ break;
+ case _SC('-'): NEXT(); RETURN_TOKEN(TK_NEWSLOT); break;
+ case _SC('<'): NEXT(); RETURN_TOKEN(TK_SHIFTL); break;
+ case _SC('/'): NEXT(); RETURN_TOKEN(TK_ATTR_OPEN); break;
+ }
+ RETURN_TOKEN('<');
+ case _SC('>'):
+ NEXT();
+ if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_GE);}
+ else if(CUR_CHAR == _SC('>')){
+ NEXT();
+ if(CUR_CHAR == _SC('>')){
+ NEXT();
+ RETURN_TOKEN(TK_USHIFTR);
+ }
+ RETURN_TOKEN(TK_SHIFTR);
+ }
+ else { RETURN_TOKEN('>') }
+ case _SC('!'):
+ NEXT();
+ if (CUR_CHAR != _SC('=')){ RETURN_TOKEN('!')}
+ else { NEXT(); RETURN_TOKEN(TK_NE); }
+ case _SC('@'): {
+ SQInteger stype;
+ NEXT();
+ if(CUR_CHAR != _SC('"')) {
+ RETURN_TOKEN('@');
+ }
+ if((stype=ReadString('"',true))!=-1) {
+ RETURN_TOKEN(stype);
+ }
+ Error(_SC("error parsing the string"));
+ }
+ case _SC('"'):
+ case _SC('\''): {
+ SQInteger stype;
+ if((stype=ReadString(CUR_CHAR,false))!=-1){
+ RETURN_TOKEN(stype);
+ }
+ Error(_SC("error parsing the string"));
+ }
+ case _SC('{'): case _SC('}'): case _SC('('): case _SC(')'): case _SC('['): case _SC(']'):
+ case _SC(';'): case _SC(','): case _SC('?'): case _SC('^'): case _SC('~'):
+ {SQInteger ret = CUR_CHAR;
+ NEXT(); RETURN_TOKEN(ret); }
+ case _SC('.'):
+ NEXT();
+ if (CUR_CHAR != _SC('.')){ RETURN_TOKEN('.') }
+ NEXT();
+ if (CUR_CHAR != _SC('.')){ Error(_SC("invalid token '..'")); }
+ NEXT();
+ RETURN_TOKEN(TK_VARPARAMS);
+ case _SC('&'):
+ NEXT();
+ if (CUR_CHAR != _SC('&')){ RETURN_TOKEN('&') }
+ else { NEXT(); RETURN_TOKEN(TK_AND); }
+ case _SC('|'):
+ NEXT();
+ if (CUR_CHAR != _SC('|')){ RETURN_TOKEN('|') }
+ else { NEXT(); RETURN_TOKEN(TK_OR); }
+ case _SC(':'):
+ NEXT();
+ if (CUR_CHAR != _SC(':')){ RETURN_TOKEN(':') }
+ else { NEXT(); RETURN_TOKEN(TK_DOUBLE_COLON); }
+ case _SC('*'):
+ NEXT();
+ if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_MULEQ);}
+ else RETURN_TOKEN('*');
+ case _SC('%'):
+ NEXT();
+ if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_MODEQ);}
+ else RETURN_TOKEN('%');
+ case _SC('-'):
+ NEXT();
+ if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_MINUSEQ);}
+ else if (CUR_CHAR == _SC('-')){ NEXT(); RETURN_TOKEN(TK_MINUSMINUS);}
+ else RETURN_TOKEN('-');
+ case _SC('+'):
+ NEXT();
+ if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_PLUSEQ);}
+ else if (CUR_CHAR == _SC('+')){ NEXT(); RETURN_TOKEN(TK_PLUSPLUS);}
+ else RETURN_TOKEN('+');
+ case SQUIRREL_EOB:
+ return 0;
+ default:{
+ if (scisdigit(CUR_CHAR)) {
+ SQInteger ret = ReadNumber();
+ RETURN_TOKEN(ret);
+ }
+ else if (scisalpha(CUR_CHAR) || CUR_CHAR == _SC('_')) {
+ SQInteger t = ReadID();
+ RETURN_TOKEN(t);
+ }
+ else {
+ SQInteger c = CUR_CHAR;
+ if (sciscntrl((int)c)) Error(_SC("unexpected character(control)"));
+ NEXT();
+ RETURN_TOKEN(c);
+ }
+ RETURN_TOKEN(0);
+ }
+ }
+ }
+ return 0;
+}
+
+SQInteger SQLexer::GetIDType(SQChar *s)
+{
+ SQObjectPtr t;
+ if(_keywords->Get(SQString::Create(_sharedstate, s), t)) {
+ return SQInteger(_integer(t));
+ }
+ return TK_IDENTIFIER;
+}
+
+
+SQInteger SQLexer::ReadString(SQInteger ndelim,bool verbatim)
+{
+ INIT_TEMP_STRING();
+ NEXT();
+ if(IS_EOB()) return -1;
+ for(;;) {
+ while(CUR_CHAR != ndelim) {
+ switch(CUR_CHAR) {
+ case SQUIRREL_EOB:
+ Error(_SC("unfinished string"));
+ return -1;
+ case _SC('\n'):
+ if(!verbatim) Error(_SC("newline in a constant"));
+ APPEND_CHAR(CUR_CHAR); NEXT();
+ _currentline++;
+ break;
+ case _SC('\\'):
+ if(verbatim) {
+ APPEND_CHAR('\\'); NEXT();
+ }
+ else {
+ NEXT();
+ switch(CUR_CHAR) {
+ case _SC('x'): NEXT(); {
+ if(!isxdigit(CUR_CHAR)) Error(_SC("hexadecimal number expected"));
+ const SQInteger maxdigits = 4;
+ SQChar temp[maxdigits+1];
+ SQInteger n = 0;
+ while(isxdigit(CUR_CHAR) && n < maxdigits) {
+ temp[n] = CUR_CHAR;
+ n++;
+ NEXT();
+ }
+ temp[n] = 0;
+ SQChar *sTemp;
+ APPEND_CHAR((SQChar)scstrtoul(temp,&sTemp,16));
+ }
+ break;
+ case _SC('t'): APPEND_CHAR(_SC('\t')); NEXT(); break;
+ case _SC('a'): APPEND_CHAR(_SC('\a')); NEXT(); break;
+ case _SC('b'): APPEND_CHAR(_SC('\b')); NEXT(); break;
+ case _SC('n'): APPEND_CHAR(_SC('\n')); NEXT(); break;
+ case _SC('r'): APPEND_CHAR(_SC('\r')); NEXT(); break;
+ case _SC('v'): APPEND_CHAR(_SC('\v')); NEXT(); break;
+ case _SC('f'): APPEND_CHAR(_SC('\f')); NEXT(); break;
+ case _SC('0'): APPEND_CHAR(_SC('\0')); NEXT(); break;
+ case _SC('\\'): APPEND_CHAR(_SC('\\')); NEXT(); break;
+ case _SC('"'): APPEND_CHAR(_SC('"')); NEXT(); break;
+ case _SC('\''): APPEND_CHAR(_SC('\'')); NEXT(); break;
+ default:
+ Error(_SC("unrecognised escaper char"));
+ break;
+ }
+ }
+ break;
+ default:
+ APPEND_CHAR(CUR_CHAR);
+ NEXT();
+ }
+ }
+ NEXT();
+ if(verbatim && CUR_CHAR == '"') { //double quotation
+ APPEND_CHAR(CUR_CHAR);
+ NEXT();
+ }
+ else {
+ break;
+ }
+ }
+ TERMINATE_BUFFER();
+ SQInteger len = _longstr.size()-1;
+ if(ndelim == _SC('\'')) {
+ if(len == 0) Error(_SC("empty constant"));
+ if(len > 1) Error(_SC("constant too long"));
+ _nvalue = _longstr[0];
+ return TK_INTEGER;
+ }
+ _svalue = &_longstr[0];
+ return TK_STRING_LITERAL;
+}
+
+void LexHexadecimal(const SQChar *s,SQUnsignedInteger *res)
+{
+ *res = 0;
+ while(*s != 0)
+ {
+ if(scisdigit(*s)) *res = (*res)*16+((*s++)-'0');
+ else if(scisxdigit(*s)) *res = (*res)*16+(toupper(*s++)-'A'+10);
+ else { assert(0); }
+ }
+}
+
+void LexInteger(const SQChar *s,SQUnsignedInteger *res)
+{
+ *res = 0;
+ while(*s != 0)
+ {
+ *res = (*res)*10+((*s++)-'0');
+ }
+}
+
+SQInteger scisodigit(SQInteger c) { return c >= _SC('0') && c <= _SC('7'); }
+
+void LexOctal(const SQChar *s,SQUnsignedInteger *res)
+{
+ *res = 0;
+ while(*s != 0)
+ {
+ if(scisodigit(*s)) *res = (*res)*8+((*s++)-'0');
+ else { assert(0); }
+ }
+}
+
+SQInteger isexponent(SQInteger c) { return c == 'e' || c=='E'; }
+
+
+#define MAX_HEX_DIGITS (sizeof(SQInteger)*2)
+SQInteger SQLexer::ReadNumber()
+{
+#define TINT 1
+#define TFLOAT 2
+#define THEX 3
+#define TSCIENTIFIC 4
+#define TOCTAL 5
+ SQInteger type = TINT, firstchar = CUR_CHAR;
+ SQChar *sTemp;
+ INIT_TEMP_STRING();
+ NEXT();
+ if(firstchar == _SC('0') && (toupper(CUR_CHAR) == _SC('X') || scisodigit(CUR_CHAR)) ) {
+ if(scisodigit(CUR_CHAR)) {
+ type = TOCTAL;
+ while(scisodigit(CUR_CHAR)) {
+ APPEND_CHAR(CUR_CHAR);
+ NEXT();
+ }
+ if(scisdigit(CUR_CHAR)) Error(_SC("invalid octal number"));
+ }
+ else {
+ NEXT();
+ type = THEX;
+ while(isxdigit(CUR_CHAR)) {
+ APPEND_CHAR(CUR_CHAR);
+ NEXT();
+ }
+ if(_longstr.size() > MAX_HEX_DIGITS) Error(_SC("too many digits for an Hex number"));
+ }
+ }
+ else {
+ APPEND_CHAR((int)firstchar);
+ while (CUR_CHAR == _SC('.') || scisdigit(CUR_CHAR) || isexponent(CUR_CHAR)) {
+ if(CUR_CHAR == _SC('.')) type = TFLOAT;
+ if(isexponent(CUR_CHAR)) {
+ if(type != TFLOAT) Error(_SC("invalid numeric format"));
+ type = TSCIENTIFIC;
+ APPEND_CHAR(CUR_CHAR);
+ NEXT();
+ if(CUR_CHAR == '+' || CUR_CHAR == '-'){
+ APPEND_CHAR(CUR_CHAR);
+ NEXT();
+ }
+ if(!scisdigit(CUR_CHAR)) Error(_SC("exponent expected"));
+ }
+
+ APPEND_CHAR(CUR_CHAR);
+ NEXT();
+ }
+ }
+ TERMINATE_BUFFER();
+ switch(type) {
+ case TSCIENTIFIC:
+ case TFLOAT:
+ _fvalue = (SQFloat)scstrtod(&_longstr[0],&sTemp);
+ return TK_FLOAT;
+ case TINT:
+ LexInteger(&_longstr[0],(SQUnsignedInteger *)&_nvalue);
+ return TK_INTEGER;
+ case THEX:
+ LexHexadecimal(&_longstr[0],(SQUnsignedInteger *)&_nvalue);
+ return TK_INTEGER;
+ case TOCTAL:
+ LexOctal(&_longstr[0],(SQUnsignedInteger *)&_nvalue);
+ return TK_INTEGER;
+ }
+ return 0;
+}
+
+SQInteger SQLexer::ReadID()
+{
+ SQInteger res;
+ INIT_TEMP_STRING();
+ do {
+ APPEND_CHAR(CUR_CHAR);
+ NEXT();
+ } while(scisalnum(CUR_CHAR) || CUR_CHAR == _SC('_'));
+ TERMINATE_BUFFER();
+ res = GetIDType(&_longstr[0]);
+ if(res == TK_IDENTIFIER || res == TK_CONSTRUCTOR) {
+ _svalue = &_longstr[0];
+ }
+ return res;
+}
diff --git a/squirrel_3_0_1_stable/squirrel/sqlexer.h b/squirrel_3_0_1_stable/squirrel/sqlexer.h new file mode 100644 index 000000000..d3283c6f7 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqlexer.h @@ -0,0 +1,47 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQLEXER_H_
+#define _SQLEXER_H_
+
+#ifdef SQUNICODE
+typedef SQChar LexChar;
+#else
+typedef unsigned char LexChar;
+#endif
+
+struct SQLexer
+{
+ SQLexer();
+ ~SQLexer();
+ void Init(SQSharedState *ss,SQLEXREADFUNC rg,SQUserPointer up,CompilerErrorFunc efunc,void *ed);
+ void Error(const SQChar *err);
+ SQInteger Lex();
+ const SQChar *Tok2Str(SQInteger tok);
+private:
+ SQInteger GetIDType(SQChar *s);
+ SQInteger ReadString(SQInteger ndelim,bool verbatim);
+ SQInteger ReadNumber();
+ void LexBlockComment();
+ void LexLineComment();
+ SQInteger ReadID();
+ void Next();
+ SQInteger _curtoken;
+ SQTable *_keywords;
+ SQBool _reached_eof;
+public:
+ SQInteger _prevtoken;
+ SQInteger _currentline;
+ SQInteger _lasttokenline;
+ SQInteger _currentcolumn;
+ const SQChar *_svalue;
+ SQInteger _nvalue;
+ SQFloat _fvalue;
+ SQLEXREADFUNC _readf;
+ SQUserPointer _up;
+ LexChar _currdata;
+ SQSharedState *_sharedstate;
+ sqvector<SQChar> _longstr;
+ CompilerErrorFunc _errfunc;
+ void *_errtarget;
+};
+
+#endif
diff --git a/squirrel_3_0_1_stable/squirrel/sqmem.cpp b/squirrel_3_0_1_stable/squirrel/sqmem.cpp new file mode 100644 index 000000000..520f7eb76 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqmem.cpp @@ -0,0 +1,9 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+void *sq_vm_malloc(SQUnsignedInteger size){ return malloc(size); }
+
+void *sq_vm_realloc(void *p, SQUnsignedInteger oldsize, SQUnsignedInteger size){ return realloc(p, size); }
+
+void sq_vm_free(void *p, SQUnsignedInteger size){ free(p); }
diff --git a/squirrel_3_0_1_stable/squirrel/sqobject.cpp b/squirrel_3_0_1_stable/squirrel/sqobject.cpp new file mode 100644 index 000000000..418a6d656 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqobject.cpp @@ -0,0 +1,655 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#include "sqvm.h"
+#include "sqstring.h"
+#include "sqarray.h"
+#include "sqtable.h"
+#include "squserdata.h"
+#include "sqfuncproto.h"
+#include "sqclass.h"
+#include "sqclosure.h"
+
+
+const SQChar *IdType2Name(SQObjectType type)
+{
+ switch(_RAW_TYPE(type))
+ {
+ case _RT_NULL:return _SC("null");
+ case _RT_INTEGER:return _SC("integer");
+ case _RT_FLOAT:return _SC("float");
+ case _RT_BOOL:return _SC("bool");
+ case _RT_STRING:return _SC("string");
+ case _RT_TABLE:return _SC("table");
+ case _RT_ARRAY:return _SC("array");
+ case _RT_GENERATOR:return _SC("generator");
+ case _RT_CLOSURE:
+ case _RT_NATIVECLOSURE:
+ return _SC("function");
+ case _RT_USERDATA:
+ case _RT_USERPOINTER:
+ return _SC("userdata");
+ case _RT_THREAD: return _SC("thread");
+ case _RT_FUNCPROTO: return _SC("function");
+ case _RT_CLASS: return _SC("class");
+ case _RT_INSTANCE: return _SC("instance");
+ case _RT_WEAKREF: return _SC("weakref");
+ case _RT_OUTER: return _SC("outer");
+ default:
+ return NULL;
+ }
+}
+
+const SQChar *GetTypeName(const SQObjectPtr &obj1)
+{
+ return IdType2Name(type(obj1));
+}
+
+SQString *SQString::Create(SQSharedState *ss,const SQChar *s,SQInteger len)
+{
+ SQString *str=ADD_STRING(ss,s,len);
+ return str;
+}
+
+void SQString::Release()
+{
+ REMOVE_STRING(_sharedstate,this);
+}
+
+SQInteger SQString::Next(const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval)
+{
+ SQInteger idx = (SQInteger)TranslateIndex(refpos);
+ while(idx < _len){
+ outkey = (SQInteger)idx;
+ outval = SQInteger(_val[idx]);
+ //return idx for the next iteration
+ return ++idx;
+ }
+ //nothing to iterate anymore
+ return -1;
+}
+
+SQUnsignedInteger TranslateIndex(const SQObjectPtr &idx)
+{
+ switch(type(idx)){
+ case OT_NULL:
+ return 0;
+ case OT_INTEGER:
+ return (SQUnsignedInteger)_integer(idx);
+ default: assert(0); break;
+ }
+ return 0;
+}
+
+SQWeakRef *SQRefCounted::GetWeakRef(SQObjectType type)
+{
+ if(!_weakref) {
+ sq_new(_weakref,SQWeakRef);
+ _weakref->_obj._type = type;
+ _weakref->_obj._unVal.pRefCounted = this;
+ }
+ return _weakref;
+}
+
+SQRefCounted::~SQRefCounted()
+{
+ if(_weakref) {
+ _weakref->_obj._type = OT_NULL;
+ _weakref->_obj._unVal.pRefCounted = NULL;
+ }
+}
+
+void SQWeakRef::Release() {
+ if(ISREFCOUNTED(_obj._type)) {
+ _obj._unVal.pRefCounted->_weakref = NULL;
+ }
+ sq_delete(this,SQWeakRef);
+}
+
+bool SQDelegable::GetMetaMethod(SQVM *v,SQMetaMethod mm,SQObjectPtr &res) {
+ if(_delegate) {
+ return _delegate->Get((*_ss(v)->_metamethods)[mm],res);
+ }
+ return false;
+}
+
+bool SQDelegable::SetDelegate(SQTable *mt)
+{
+ SQTable *temp = mt;
+ if(temp == this) return false;
+ while (temp) {
+ if (temp->_delegate == this) return false; //cycle detected
+ temp = temp->_delegate;
+ }
+ if (mt) __ObjAddRef(mt);
+ __ObjRelease(_delegate);
+ _delegate = mt;
+ return true;
+}
+
+bool SQGenerator::Yield(SQVM *v,SQInteger target)
+{
+ if(_state==eSuspended) { v->Raise_Error(_SC("internal vm error, yielding dead generator")); return false;}
+ if(_state==eDead) { v->Raise_Error(_SC("internal vm error, yielding a dead generator")); return false; }
+ SQInteger size = v->_top-v->_stackbase;
+
+ _stack.resize(size);
+ SQObject _this = v->_stack[v->_stackbase];
+ _stack._vals[0] = ISREFCOUNTED(type(_this)) ? SQObjectPtr(_refcounted(_this)->GetWeakRef(type(_this))) : _this;
+ for(SQInteger n =1; n<target; n++) {
+ _stack._vals[n] = v->_stack[v->_stackbase+n];
+ }
+ for(SQInteger j =0; j < size; j++)
+ {
+ v->_stack[v->_stackbase+j].Null();
+ }
+
+ _ci = *v->ci;
+ _ci._generator=NULL;
+ for(SQInteger i=0;i<_ci._etraps;i++) {
+ _etraps.push_back(v->_etraps.top());
+ v->_etraps.pop_back();
+ }
+ _state=eSuspended;
+ return true;
+}
+
+bool SQGenerator::Resume(SQVM *v,SQObjectPtr &dest)
+{
+ if(_state==eDead){ v->Raise_Error(_SC("resuming dead generator")); return false; }
+ if(_state==eRunning){ v->Raise_Error(_SC("resuming active generator")); return false; }
+ SQInteger size = _stack.size();
+ SQInteger target = &dest - &(v->_stack._vals[v->_stackbase]);
+ assert(target>=0 && target<=255);
+ if(!v->EnterFrame(v->_top, v->_top + size, false))
+ return false;
+ v->ci->_generator = this;
+ v->ci->_target = (SQInt32)target;
+ v->ci->_closure = _ci._closure;
+ v->ci->_ip = _ci._ip;
+ v->ci->_literals = _ci._literals;
+ v->ci->_ncalls = _ci._ncalls;
+ v->ci->_etraps = _ci._etraps;
+ v->ci->_root = _ci._root;
+
+
+ for(SQInteger i=0;i<_ci._etraps;i++) {
+ v->_etraps.push_back(_etraps.top());
+ _etraps.pop_back();
+ }
+ SQObject _this = _stack._vals[0];
+ v->_stack[v->_stackbase] = type(_this) == OT_WEAKREF ? _weakref(_this)->_obj : _this;
+
+ for(SQInteger n = 1; n<size; n++) {
+ v->_stack[v->_stackbase+n] = _stack._vals[n];
+ _stack._vals[n].Null();
+ }
+
+ _state=eRunning;
+ if (v->_debughook)
+ v->CallDebugHook(_SC('c'));
+
+ return true;
+}
+
+void SQArray::Extend(const SQArray *a){
+ SQInteger xlen;
+ if((xlen=a->Size()))
+ for(SQInteger i=0;i<xlen;i++)
+ Append(a->_values[i]);
+}
+
+const SQChar* SQFunctionProto::GetLocal(SQVM *vm,SQUnsignedInteger stackbase,SQUnsignedInteger nseq,SQUnsignedInteger nop)
+{
+ SQUnsignedInteger nvars=_nlocalvarinfos;
+ const SQChar *res=NULL;
+ if(nvars>=nseq){
+ for(SQUnsignedInteger i=0;i<nvars;i++){
+ if(_localvarinfos[i]._start_op<=nop && _localvarinfos[i]._end_op>=nop)
+ {
+ if(nseq==0){
+ vm->Push(vm->_stack[stackbase+_localvarinfos[i]._pos]);
+ res=_stringval(_localvarinfos[i]._name);
+ break;
+ }
+ nseq--;
+ }
+ }
+ }
+ return res;
+}
+
+
+SQInteger SQFunctionProto::GetLine(SQInstruction *curr)
+{
+ SQInteger op = (SQInteger)(curr-_instructions);
+ SQInteger line=_lineinfos[0]._line;
+ SQInteger low = 0;
+ SQInteger high = _nlineinfos - 1;
+ SQInteger mid = 0;
+ while(low <= high)
+ {
+ mid = low + ((high - low) >> 1);
+ SQInteger curop = _lineinfos[mid]._op;
+ if(curop > op)
+ {
+ high = mid - 1;
+ }
+ else if(curop < op) {
+ if(mid < (_nlineinfos - 1)
+ && _lineinfos[mid + 1]._op >= op) {
+ break;
+ }
+ low = mid + 1;
+ }
+ else { //equal
+ break;
+ }
+ }
+
+ line = _lineinfos[mid]._line;
+ return line;
+}
+
+SQClosure::~SQClosure()
+{
+ __ObjRelease(_env);
+ __ObjRelease(_base);
+ REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this);
+}
+
+#define _CHECK_IO(exp) { if(!exp)return false; }
+bool SafeWrite(HSQUIRRELVM v,SQWRITEFUNC write,SQUserPointer up,SQUserPointer dest,SQInteger size)
+{
+ if(write(up,dest,size) != size) {
+ v->Raise_Error(_SC("io error (write function failure)"));
+ return false;
+ }
+ return true;
+}
+
+bool SafeRead(HSQUIRRELVM v,SQWRITEFUNC read,SQUserPointer up,SQUserPointer dest,SQInteger size)
+{
+ if(size && read(up,dest,size) != size) {
+ v->Raise_Error(_SC("io error, read function failure, the origin stream could be corrupted/trucated"));
+ return false;
+ }
+ return true;
+}
+
+bool WriteTag(HSQUIRRELVM v,SQWRITEFUNC write,SQUserPointer up,SQUnsignedInteger32 tag)
+{
+ return SafeWrite(v,write,up,&tag,sizeof(tag));
+}
+
+bool CheckTag(HSQUIRRELVM v,SQWRITEFUNC read,SQUserPointer up,SQUnsignedInteger32 tag)
+{
+ SQUnsignedInteger32 t;
+ _CHECK_IO(SafeRead(v,read,up,&t,sizeof(t)));
+ if(t != tag){
+ v->Raise_Error(_SC("invalid or corrupted closure stream"));
+ return false;
+ }
+ return true;
+}
+
+bool WriteObject(HSQUIRRELVM v,SQUserPointer up,SQWRITEFUNC write,SQObjectPtr &o)
+{
+ SQUnsignedInteger32 _type = (SQUnsignedInteger32)type(o);
+ _CHECK_IO(SafeWrite(v,write,up,&_type,sizeof(_type)));
+ switch(type(o)){
+ case OT_STRING:
+ _CHECK_IO(SafeWrite(v,write,up,&_string(o)->_len,sizeof(SQInteger)));
+ _CHECK_IO(SafeWrite(v,write,up,_stringval(o),rsl(_string(o)->_len)));
+ break;
+ case OT_INTEGER:
+ _CHECK_IO(SafeWrite(v,write,up,&_integer(o),sizeof(SQInteger)));break;
+ case OT_FLOAT:
+ _CHECK_IO(SafeWrite(v,write,up,&_float(o),sizeof(SQFloat)));break;
+ case OT_NULL:
+ break;
+ default:
+ v->Raise_Error(_SC("cannot serialize a %s"),GetTypeName(o));
+ return false;
+ }
+ return true;
+}
+
+bool ReadObject(HSQUIRRELVM v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &o)
+{
+ SQUnsignedInteger32 _type;
+ _CHECK_IO(SafeRead(v,read,up,&_type,sizeof(_type)));
+ SQObjectType t = (SQObjectType)_type;
+ switch(t){
+ case OT_STRING:{
+ SQInteger len;
+ _CHECK_IO(SafeRead(v,read,up,&len,sizeof(SQInteger)));
+ _CHECK_IO(SafeRead(v,read,up,_ss(v)->GetScratchPad(rsl(len)),rsl(len)));
+ o=SQString::Create(_ss(v),_ss(v)->GetScratchPad(-1),len);
+ }
+ break;
+ case OT_INTEGER:{
+ SQInteger i;
+ _CHECK_IO(SafeRead(v,read,up,&i,sizeof(SQInteger))); o = i; break;
+ }
+ case OT_FLOAT:{
+ SQFloat f;
+ _CHECK_IO(SafeRead(v,read,up,&f,sizeof(SQFloat))); o = f; break;
+ }
+ case OT_NULL:
+ o.Null();
+ break;
+ default:
+ v->Raise_Error(_SC("cannot serialize a %s"),IdType2Name(t));
+ return false;
+ }
+ return true;
+}
+
+bool SQClosure::Save(SQVM *v,SQUserPointer up,SQWRITEFUNC write)
+{
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_HEAD));
+ _CHECK_IO(WriteTag(v,write,up,sizeof(SQChar)));
+ _CHECK_IO(WriteTag(v,write,up,sizeof(SQInteger)));
+ _CHECK_IO(WriteTag(v,write,up,sizeof(SQFloat)));
+ _CHECK_IO(_function->Save(v,up,write));
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_TAIL));
+ return true;
+}
+
+bool SQClosure::Load(SQVM *v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &ret)
+{
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_HEAD));
+ _CHECK_IO(CheckTag(v,read,up,sizeof(SQChar)));
+ _CHECK_IO(CheckTag(v,read,up,sizeof(SQInteger)));
+ _CHECK_IO(CheckTag(v,read,up,sizeof(SQFloat)));
+ SQObjectPtr func;
+ _CHECK_IO(SQFunctionProto::Load(v,up,read,func));
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_TAIL));
+ ret = SQClosure::Create(_ss(v),_funcproto(func));
+ return true;
+}
+
+SQFunctionProto::SQFunctionProto(SQSharedState *ss)
+{
+ _stacksize=0;
+ _bgenerator=false;
+ INIT_CHAIN();ADD_TO_CHAIN(&_ss(this)->_gc_chain,this);
+}
+
+SQFunctionProto::~SQFunctionProto()
+{
+ REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this);
+}
+
+bool SQFunctionProto::Save(SQVM *v,SQUserPointer up,SQWRITEFUNC write)
+{
+ SQInteger i,nliterals = _nliterals,nparameters = _nparameters;
+ SQInteger noutervalues = _noutervalues,nlocalvarinfos = _nlocalvarinfos;
+ SQInteger nlineinfos=_nlineinfos,ninstructions = _ninstructions,nfunctions=_nfunctions;
+ SQInteger ndefaultparams = _ndefaultparams;
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(WriteObject(v,up,write,_sourcename));
+ _CHECK_IO(WriteObject(v,up,write,_name));
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(SafeWrite(v,write,up,&nliterals,sizeof(nliterals)));
+ _CHECK_IO(SafeWrite(v,write,up,&nparameters,sizeof(nparameters)));
+ _CHECK_IO(SafeWrite(v,write,up,&noutervalues,sizeof(noutervalues)));
+ _CHECK_IO(SafeWrite(v,write,up,&nlocalvarinfos,sizeof(nlocalvarinfos)));
+ _CHECK_IO(SafeWrite(v,write,up,&nlineinfos,sizeof(nlineinfos)));
+ _CHECK_IO(SafeWrite(v,write,up,&ndefaultparams,sizeof(ndefaultparams)));
+ _CHECK_IO(SafeWrite(v,write,up,&ninstructions,sizeof(ninstructions)));
+ _CHECK_IO(SafeWrite(v,write,up,&nfunctions,sizeof(nfunctions)));
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ for(i=0;i<nliterals;i++){
+ _CHECK_IO(WriteObject(v,up,write,_literals[i]));
+ }
+
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ for(i=0;i<nparameters;i++){
+ _CHECK_IO(WriteObject(v,up,write,_parameters[i]));
+ }
+
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ for(i=0;i<noutervalues;i++){
+ _CHECK_IO(SafeWrite(v,write,up,&_outervalues[i]._type,sizeof(SQUnsignedInteger)));
+ _CHECK_IO(WriteObject(v,up,write,_outervalues[i]._src));
+ _CHECK_IO(WriteObject(v,up,write,_outervalues[i]._name));
+ }
+
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ for(i=0;i<nlocalvarinfos;i++){
+ SQLocalVarInfo &lvi=_localvarinfos[i];
+ _CHECK_IO(WriteObject(v,up,write,lvi._name));
+ _CHECK_IO(SafeWrite(v,write,up,&lvi._pos,sizeof(SQUnsignedInteger)));
+ _CHECK_IO(SafeWrite(v,write,up,&lvi._start_op,sizeof(SQUnsignedInteger)));
+ _CHECK_IO(SafeWrite(v,write,up,&lvi._end_op,sizeof(SQUnsignedInteger)));
+ }
+
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(SafeWrite(v,write,up,_lineinfos,sizeof(SQLineInfo)*nlineinfos));
+
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(SafeWrite(v,write,up,_defaultparams,sizeof(SQInteger)*ndefaultparams));
+
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(SafeWrite(v,write,up,_instructions,sizeof(SQInstruction)*ninstructions));
+
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
+ for(i=0;i<nfunctions;i++){
+ _CHECK_IO(_funcproto(_functions[i])->Save(v,up,write));
+ }
+ _CHECK_IO(SafeWrite(v,write,up,&_stacksize,sizeof(_stacksize)));
+ _CHECK_IO(SafeWrite(v,write,up,&_bgenerator,sizeof(_bgenerator)));
+ _CHECK_IO(SafeWrite(v,write,up,&_varparams,sizeof(_varparams)));
+ return true;
+}
+
+bool SQFunctionProto::Load(SQVM *v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &ret)
+{
+ SQInteger i, nliterals,nparameters;
+ SQInteger noutervalues ,nlocalvarinfos ;
+ SQInteger nlineinfos,ninstructions ,nfunctions,ndefaultparams ;
+ SQObjectPtr sourcename, name;
+ SQObjectPtr o;
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(ReadObject(v, up, read, sourcename));
+ _CHECK_IO(ReadObject(v, up, read, name));
+
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(SafeRead(v,read,up, &nliterals, sizeof(nliterals)));
+ _CHECK_IO(SafeRead(v,read,up, &nparameters, sizeof(nparameters)));
+ _CHECK_IO(SafeRead(v,read,up, &noutervalues, sizeof(noutervalues)));
+ _CHECK_IO(SafeRead(v,read,up, &nlocalvarinfos, sizeof(nlocalvarinfos)));
+ _CHECK_IO(SafeRead(v,read,up, &nlineinfos, sizeof(nlineinfos)));
+ _CHECK_IO(SafeRead(v,read,up, &ndefaultparams, sizeof(ndefaultparams)));
+ _CHECK_IO(SafeRead(v,read,up, &ninstructions, sizeof(ninstructions)));
+ _CHECK_IO(SafeRead(v,read,up, &nfunctions, sizeof(nfunctions)));
+
+
+ SQFunctionProto *f = SQFunctionProto::Create(_opt_ss(v),ninstructions,nliterals,nparameters,
+ nfunctions,noutervalues,nlineinfos,nlocalvarinfos,ndefaultparams);
+ SQObjectPtr proto = f; //gets a ref in case of failure
+ f->_sourcename = sourcename;
+ f->_name = name;
+
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+
+ for(i = 0;i < nliterals; i++){
+ _CHECK_IO(ReadObject(v, up, read, o));
+ f->_literals[i] = o;
+ }
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+
+ for(i = 0; i < nparameters; i++){
+ _CHECK_IO(ReadObject(v, up, read, o));
+ f->_parameters[i] = o;
+ }
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+
+ for(i = 0; i < noutervalues; i++){
+ SQUnsignedInteger type;
+ SQObjectPtr name;
+ _CHECK_IO(SafeRead(v,read,up, &type, sizeof(SQUnsignedInteger)));
+ _CHECK_IO(ReadObject(v, up, read, o));
+ _CHECK_IO(ReadObject(v, up, read, name));
+ f->_outervalues[i] = SQOuterVar(name,o, (SQOuterType)type);
+ }
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+
+ for(i = 0; i < nlocalvarinfos; i++){
+ SQLocalVarInfo lvi;
+ _CHECK_IO(ReadObject(v, up, read, lvi._name));
+ _CHECK_IO(SafeRead(v,read,up, &lvi._pos, sizeof(SQUnsignedInteger)));
+ _CHECK_IO(SafeRead(v,read,up, &lvi._start_op, sizeof(SQUnsignedInteger)));
+ _CHECK_IO(SafeRead(v,read,up, &lvi._end_op, sizeof(SQUnsignedInteger)));
+ f->_localvarinfos[i] = lvi;
+ }
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(SafeRead(v,read,up, f->_lineinfos, sizeof(SQLineInfo)*nlineinfos));
+
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(SafeRead(v,read,up, f->_defaultparams, sizeof(SQInteger)*ndefaultparams));
+
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+ _CHECK_IO(SafeRead(v,read,up, f->_instructions, sizeof(SQInstruction)*ninstructions));
+
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
+ for(i = 0; i < nfunctions; i++){
+ _CHECK_IO(_funcproto(o)->Load(v, up, read, o));
+ f->_functions[i] = o;
+ }
+ _CHECK_IO(SafeRead(v,read,up, &f->_stacksize, sizeof(f->_stacksize)));
+ _CHECK_IO(SafeRead(v,read,up, &f->_bgenerator, sizeof(f->_bgenerator)));
+ _CHECK_IO(SafeRead(v,read,up, &f->_varparams, sizeof(f->_varparams)));
+
+ ret = f;
+ return true;
+}
+
+#ifndef NO_GARBAGE_COLLECTOR
+
+#define START_MARK() if(!(_uiRef&MARK_FLAG)){ \
+ _uiRef|=MARK_FLAG;
+
+#define END_MARK() RemoveFromChain(&_sharedstate->_gc_chain, this); \
+ AddToChain(chain, this); }
+
+void SQVM::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ SQSharedState::MarkObject(_lasterror,chain);
+ SQSharedState::MarkObject(_errorhandler,chain);
+ SQSharedState::MarkObject(_debughook_closure,chain);
+ SQSharedState::MarkObject(_roottable, chain);
+ SQSharedState::MarkObject(temp_reg, chain);
+ for(SQUnsignedInteger i = 0; i < _stack.size(); i++) SQSharedState::MarkObject(_stack[i], chain);
+ for(SQInteger k = 0; k < _callsstacksize; k++) SQSharedState::MarkObject(_callsstack[k]._closure, chain);
+ END_MARK()
+}
+
+void SQArray::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ SQInteger len = _values.size();
+ for(SQInteger i = 0;i < len; i++) SQSharedState::MarkObject(_values[i], chain);
+ END_MARK()
+}
+void SQTable::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ if(_delegate) _delegate->Mark(chain);
+ SQInteger len = _numofnodes;
+ for(SQInteger i = 0; i < len; i++){
+ SQSharedState::MarkObject(_nodes[i].key, chain);
+ SQSharedState::MarkObject(_nodes[i].val, chain);
+ }
+ END_MARK()
+}
+
+void SQClass::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ _members->Mark(chain);
+ if(_base) _base->Mark(chain);
+ SQSharedState::MarkObject(_attributes, chain);
+ for(SQUnsignedInteger i =0; i< _defaultvalues.size(); i++) {
+ SQSharedState::MarkObject(_defaultvalues[i].val, chain);
+ SQSharedState::MarkObject(_defaultvalues[i].attrs, chain);
+ }
+ for(SQUnsignedInteger j =0; j< _methods.size(); j++) {
+ SQSharedState::MarkObject(_methods[j].val, chain);
+ SQSharedState::MarkObject(_methods[j].attrs, chain);
+ }
+ for(SQUnsignedInteger k =0; k< MT_LAST; k++) {
+ SQSharedState::MarkObject(_metamethods[k], chain);
+ }
+ END_MARK()
+}
+
+void SQInstance::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ _class->Mark(chain);
+ SQUnsignedInteger nvalues = _class->_defaultvalues.size();
+ for(SQUnsignedInteger i =0; i< nvalues; i++) {
+ SQSharedState::MarkObject(_values[i], chain);
+ }
+ END_MARK()
+}
+
+void SQGenerator::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ for(SQUnsignedInteger i = 0; i < _stack.size(); i++) SQSharedState::MarkObject(_stack[i], chain);
+ SQSharedState::MarkObject(_closure, chain);
+ END_MARK()
+}
+
+void SQFunctionProto::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ for(SQInteger i = 0; i < _nliterals; i++) SQSharedState::MarkObject(_literals[i], chain);
+ for(SQInteger k = 0; k < _nfunctions; k++) SQSharedState::MarkObject(_functions[k], chain);
+ END_MARK()
+}
+
+void SQClosure::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ if(_base) _base->Mark(chain);
+ SQFunctionProto *fp = _function;
+ fp->Mark(chain);
+ for(SQInteger i = 0; i < fp->_noutervalues; i++) SQSharedState::MarkObject(_outervalues[i], chain);
+ for(SQInteger k = 0; k < fp->_ndefaultparams; k++) SQSharedState::MarkObject(_defaultparams[k], chain);
+ END_MARK()
+}
+
+void SQNativeClosure::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ for(SQUnsignedInteger i = 0; i < _noutervalues; i++) SQSharedState::MarkObject(_outervalues[i], chain);
+ END_MARK()
+}
+
+void SQOuter::Mark(SQCollectable **chain)
+{
+ START_MARK()
+ /* If the valptr points to a closed value, that value is alive */
+ if(_valptr == &_value) {
+ SQSharedState::MarkObject(_value, chain);
+ }
+ END_MARK()
+}
+
+void SQUserData::Mark(SQCollectable **chain){
+ START_MARK()
+ if(_delegate) _delegate->Mark(chain);
+ END_MARK()
+}
+
+void SQCollectable::UnMark() { _uiRef&=~MARK_FLAG; }
+
+#endif
+
diff --git a/squirrel_3_0_1_stable/squirrel/sqobject.h b/squirrel_3_0_1_stable/squirrel/sqobject.h new file mode 100644 index 000000000..a7d1e1ed3 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqobject.h @@ -0,0 +1,354 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQOBJECT_H_
+#define _SQOBJECT_H_
+
+#include "squtils.h"
+
+#ifdef _SQ64
+#define UINT_MINUS_ONE (0xFFFFFFFFFFFFFFFF)
+#else
+#define UINT_MINUS_ONE (0xFFFFFFFF)
+#endif
+
+#define SQ_CLOSURESTREAM_HEAD (('S'<<24)|('Q'<<16)|('I'<<8)|('R'))
+#define SQ_CLOSURESTREAM_PART (('P'<<24)|('A'<<16)|('R'<<8)|('T'))
+#define SQ_CLOSURESTREAM_TAIL (('T'<<24)|('A'<<16)|('I'<<8)|('L'))
+
+struct SQSharedState;
+
+enum SQMetaMethod{
+ MT_ADD=0,
+ MT_SUB=1,
+ MT_MUL=2,
+ MT_DIV=3,
+ MT_UNM=4,
+ MT_MODULO=5,
+ MT_SET=6,
+ MT_GET=7,
+ MT_TYPEOF=8,
+ MT_NEXTI=9,
+ MT_CMP=10,
+ MT_CALL=11,
+ MT_CLONED=12,
+ MT_NEWSLOT=13,
+ MT_DELSLOT=14,
+ MT_TOSTRING=15,
+ MT_NEWMEMBER=16,
+ MT_INHERITED=17,
+ MT_LAST = 18
+};
+
+#define MM_ADD _SC("_add")
+#define MM_SUB _SC("_sub")
+#define MM_MUL _SC("_mul")
+#define MM_DIV _SC("_div")
+#define MM_UNM _SC("_unm")
+#define MM_MODULO _SC("_modulo")
+#define MM_SET _SC("_set")
+#define MM_GET _SC("_get")
+#define MM_TYPEOF _SC("_typeof")
+#define MM_NEXTI _SC("_nexti")
+#define MM_CMP _SC("_cmp")
+#define MM_CALL _SC("_call")
+#define MM_CLONED _SC("_cloned")
+#define MM_NEWSLOT _SC("_newslot")
+#define MM_DELSLOT _SC("_delslot")
+#define MM_TOSTRING _SC("_tostring")
+#define MM_NEWMEMBER _SC("_newmember")
+#define MM_INHERITED _SC("_inherited")
+
+
+#define _CONSTRUCT_VECTOR(type,size,ptr) { \
+ for(SQInteger n = 0; n < ((SQInteger)size); n++) { \
+ new (&ptr[n]) type(); \
+ } \
+}
+
+#define _DESTRUCT_VECTOR(type,size,ptr) { \
+ for(SQInteger nl = 0; nl < ((SQInteger)size); nl++) { \
+ ptr[nl].~type(); \
+ } \
+}
+
+#define _COPY_VECTOR(dest,src,size) { \
+ for(SQInteger _n_ = 0; _n_ < ((SQInteger)size); _n_++) { \
+ dest[_n_] = src[_n_]; \
+ } \
+}
+
+#define _NULL_SQOBJECT_VECTOR(vec,size) { \
+ for(SQInteger _n_ = 0; _n_ < ((SQInteger)size); _n_++) { \
+ vec[_n_].Null(); \
+ } \
+}
+
+#define MINPOWER2 4
+
+struct SQRefCounted
+{
+ SQUnsignedInteger _uiRef;
+ struct SQWeakRef *_weakref;
+ SQRefCounted() { _uiRef = 0; _weakref = NULL; }
+ virtual ~SQRefCounted();
+ SQWeakRef *GetWeakRef(SQObjectType type);
+ virtual void Release()=0;
+
+};
+
+struct SQWeakRef : SQRefCounted
+{
+ void Release();
+ SQObject _obj;
+};
+
+#define _realval(o) (type((o)) != OT_WEAKREF?(SQObject)o:_weakref(o)->_obj)
+
+struct SQObjectPtr;
+
+#define __AddRef(type,unval) if(ISREFCOUNTED(type)) \
+ { \
+ unval.pRefCounted->_uiRef++; \
+ }
+
+#define __Release(type,unval) if(ISREFCOUNTED(type) && ((--unval.pRefCounted->_uiRef)==0)) \
+ { \
+ unval.pRefCounted->Release(); \
+ }
+
+#define __ObjRelease(obj) { \
+ if((obj)) { \
+ (obj)->_uiRef--; \
+ if((obj)->_uiRef == 0) \
+ (obj)->Release(); \
+ (obj) = NULL; \
+ } \
+}
+
+#define __ObjAddRef(obj) { \
+ (obj)->_uiRef++; \
+}
+
+#define type(obj) ((obj)._type)
+#define is_delegable(t) (type(t)&SQOBJECT_DELEGABLE)
+#define raw_type(obj) _RAW_TYPE((obj)._type)
+
+#define _integer(obj) ((obj)._unVal.nInteger)
+#define _float(obj) ((obj)._unVal.fFloat)
+#define _string(obj) ((obj)._unVal.pString)
+#define _table(obj) ((obj)._unVal.pTable)
+#define _array(obj) ((obj)._unVal.pArray)
+#define _closure(obj) ((obj)._unVal.pClosure)
+#define _generator(obj) ((obj)._unVal.pGenerator)
+#define _nativeclosure(obj) ((obj)._unVal.pNativeClosure)
+#define _userdata(obj) ((obj)._unVal.pUserData)
+#define _userpointer(obj) ((obj)._unVal.pUserPointer)
+#define _thread(obj) ((obj)._unVal.pThread)
+#define _funcproto(obj) ((obj)._unVal.pFunctionProto)
+#define _class(obj) ((obj)._unVal.pClass)
+#define _instance(obj) ((obj)._unVal.pInstance)
+#define _delegable(obj) ((SQDelegable *)(obj)._unVal.pDelegable)
+#define _weakref(obj) ((obj)._unVal.pWeakRef)
+#define _outer(obj) ((obj)._unVal.pOuter)
+#define _refcounted(obj) ((obj)._unVal.pRefCounted)
+#define _rawval(obj) ((obj)._unVal.raw)
+
+#define _stringval(obj) (obj)._unVal.pString->_val
+#define _userdataval(obj) ((SQUserPointer)sq_aligning((obj)._unVal.pUserData + 1))
+
+#define tofloat(num) ((type(num)==OT_INTEGER)?(SQFloat)_integer(num):_float(num))
+#define tointeger(num) ((type(num)==OT_FLOAT)?(SQInteger)_float(num):_integer(num))
+/////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////
+#if defined(SQUSEDOUBLE) && !defined(_SQ64) || !defined(SQUSEDOUBLE) && defined(_SQ64)
+#define SQ_REFOBJECT_INIT() SQ_OBJECT_RAWINIT()
+#else
+#define SQ_REFOBJECT_INIT()
+#endif
+
+#define _REF_TYPE_DECL(type,_class,sym) \
+ SQObjectPtr(_class * x) \
+ { \
+ SQ_OBJECT_RAWINIT() \
+ _type=type; \
+ _unVal.sym = x; \
+ assert(_unVal.pTable); \
+ _unVal.pRefCounted->_uiRef++; \
+ } \
+ inline SQObjectPtr& operator=(_class *x) \
+ { \
+ SQObjectType tOldType; \
+ SQObjectValue unOldVal; \
+ tOldType=_type; \
+ unOldVal=_unVal; \
+ _type = type; \
+ SQ_REFOBJECT_INIT() \
+ _unVal.sym = x; \
+ _unVal.pRefCounted->_uiRef++; \
+ __Release(tOldType,unOldVal); \
+ return *this; \
+ }
+
+#define _SCALAR_TYPE_DECL(type,_class,sym) \
+ SQObjectPtr(_class x) \
+ { \
+ SQ_OBJECT_RAWINIT() \
+ _type=type; \
+ _unVal.sym = x; \
+ } \
+ inline SQObjectPtr& operator=(_class x) \
+ { \
+ __Release(_type,_unVal); \
+ _type = type; \
+ SQ_OBJECT_RAWINIT() \
+ _unVal.sym = x; \
+ return *this; \
+ }
+struct SQObjectPtr : public SQObject
+{
+ SQObjectPtr()
+ {
+ SQ_OBJECT_RAWINIT()
+ _type=OT_NULL;
+ _unVal.pUserPointer=NULL;
+ }
+ SQObjectPtr(const SQObjectPtr &o)
+ {
+ //SQ_OBJECT_RAWINIT()
+ _type=o._type;
+ _unVal=o._unVal;
+ __AddRef(_type,_unVal);
+ }
+ SQObjectPtr(const SQObject &o)
+ {
+ //SQ_OBJECT_RAWINIT()
+ _type=o._type;
+ _unVal=o._unVal;
+ __AddRef(_type,_unVal);
+ }
+ _REF_TYPE_DECL(OT_TABLE,SQTable,pTable)
+ _REF_TYPE_DECL(OT_CLASS,SQClass,pClass)
+ _REF_TYPE_DECL(OT_INSTANCE,SQInstance,pInstance)
+ _REF_TYPE_DECL(OT_ARRAY,SQArray,pArray)
+ _REF_TYPE_DECL(OT_CLOSURE,SQClosure,pClosure)
+ _REF_TYPE_DECL(OT_NATIVECLOSURE,SQNativeClosure,pNativeClosure)
+ _REF_TYPE_DECL(OT_OUTER,SQOuter,pOuter)
+ _REF_TYPE_DECL(OT_GENERATOR,SQGenerator,pGenerator)
+ _REF_TYPE_DECL(OT_STRING,SQString,pString)
+ _REF_TYPE_DECL(OT_USERDATA,SQUserData,pUserData)
+ _REF_TYPE_DECL(OT_WEAKREF,SQWeakRef,pWeakRef)
+ _REF_TYPE_DECL(OT_THREAD,SQVM,pThread)
+ _REF_TYPE_DECL(OT_FUNCPROTO,SQFunctionProto,pFunctionProto)
+
+ _SCALAR_TYPE_DECL(OT_INTEGER,SQInteger,nInteger)
+ _SCALAR_TYPE_DECL(OT_FLOAT,SQFloat,fFloat)
+ _SCALAR_TYPE_DECL(OT_USERPOINTER,SQUserPointer,pUserPointer)
+
+ SQObjectPtr(bool bBool)
+ {
+ SQ_OBJECT_RAWINIT()
+ _type = OT_BOOL;
+ _unVal.nInteger = bBool?1:0;
+ }
+ inline SQObjectPtr& operator=(bool b)
+ {
+ __Release(_type,_unVal);
+ SQ_OBJECT_RAWINIT()
+ _type = OT_BOOL;
+ _unVal.nInteger = b?1:0;
+ return *this;
+ }
+
+ ~SQObjectPtr()
+ {
+ __Release(_type,_unVal);
+ }
+
+ inline SQObjectPtr& operator=(const SQObjectPtr& obj)
+ {
+ SQObjectType tOldType;
+ SQObjectValue unOldVal;
+ tOldType=_type;
+ unOldVal=_unVal;
+ _unVal = obj._unVal;
+ _type = obj._type;
+ __AddRef(_type,_unVal);
+ __Release(tOldType,unOldVal);
+ return *this;
+ }
+ inline SQObjectPtr& operator=(const SQObject& obj)
+ {
+ SQObjectType tOldType;
+ SQObjectValue unOldVal;
+ tOldType=_type;
+ unOldVal=_unVal;
+ _unVal = obj._unVal;
+ _type = obj._type;
+ __AddRef(_type,_unVal);
+ __Release(tOldType,unOldVal);
+ return *this;
+ }
+ inline void Null()
+ {
+ __Release(_type ,_unVal);
+ _type = OT_NULL;
+ _unVal.raw = NULL;
+ }
+ private:
+ SQObjectPtr(const SQChar *){} //safety
+};
+
+
+inline void _Swap(SQObject &a,SQObject &b)
+{
+ SQObjectType tOldType = a._type;
+ SQObjectValue unOldVal = a._unVal;
+ a._type = b._type;
+ a._unVal = b._unVal;
+ b._type = tOldType;
+ b._unVal = unOldVal;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////
+#ifndef NO_GARBAGE_COLLECTOR
+#define MARK_FLAG 0x80000000
+struct SQCollectable : public SQRefCounted {
+ SQCollectable *_next;
+ SQCollectable *_prev;
+ SQSharedState *_sharedstate;
+ virtual SQObjectType GetType()=0;
+ virtual void Release()=0;
+ virtual void Mark(SQCollectable **chain)=0;
+ void UnMark();
+ virtual void Finalize()=0;
+ static void AddToChain(SQCollectable **chain,SQCollectable *c);
+ static void RemoveFromChain(SQCollectable **chain,SQCollectable *c);
+};
+
+
+#define ADD_TO_CHAIN(chain,obj) AddToChain(chain,obj)
+#define REMOVE_FROM_CHAIN(chain,obj) {if(!(_uiRef&MARK_FLAG))RemoveFromChain(chain,obj);}
+#define CHAINABLE_OBJ SQCollectable
+#define INIT_CHAIN() {_next=NULL;_prev=NULL;_sharedstate=ss;}
+#else
+
+#define ADD_TO_CHAIN(chain,obj) ((void)0)
+#define REMOVE_FROM_CHAIN(chain,obj) ((void)0)
+#define CHAINABLE_OBJ SQRefCounted
+#define INIT_CHAIN() ((void)0)
+#endif
+
+struct SQDelegable : public CHAINABLE_OBJ {
+ bool SetDelegate(SQTable *m);
+ virtual bool GetMetaMethod(SQVM *v,SQMetaMethod mm,SQObjectPtr &res);
+ SQTable *_delegate;
+};
+
+SQUnsignedInteger TranslateIndex(const SQObjectPtr &idx);
+typedef sqvector<SQObjectPtr> SQObjectPtrVec;
+typedef sqvector<SQInteger> SQIntVec;
+const SQChar *GetTypeName(const SQObjectPtr &obj1);
+const SQChar *IdType2Name(SQObjectType type);
+
+
+
+#endif //_SQOBJECT_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqopcodes.h b/squirrel_3_0_1_stable/squirrel/sqopcodes.h new file mode 100644 index 000000000..4d179812f --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqopcodes.h @@ -0,0 +1,132 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQOPCODES_H_
+#define _SQOPCODES_H_
+
+#define MAX_FUNC_STACKSIZE 0xFF
+#define MAX_LITERALS ((SQInteger)0x7FFFFFFF)
+
+enum BitWiseOP {
+ BW_AND = 0,
+ BW_OR = 2,
+ BW_XOR = 3,
+ BW_SHIFTL = 4,
+ BW_SHIFTR = 5,
+ BW_USHIFTR = 6
+};
+
+enum CmpOP {
+ CMP_G = 0,
+ CMP_GE = 2,
+ CMP_L = 3,
+ CMP_LE = 4,
+ CMP_3W = 5
+};
+
+enum NewObjectType {
+ NOT_TABLE = 0,
+ NOT_ARRAY = 1,
+ NOT_CLASS = 2
+};
+
+enum AppendArrayType {
+ AAT_STACK = 0,
+ AAT_LITERAL = 1,
+ AAT_INT = 2,
+ AAT_FLOAT = 3,
+ AAT_BOOL = 4
+};
+
+enum SQOpcode
+{
+ _OP_LINE= 0x00,
+ _OP_LOAD= 0x01,
+ _OP_LOADINT= 0x02,
+ _OP_LOADFLOAT= 0x03,
+ _OP_DLOAD= 0x04,
+ _OP_TAILCALL= 0x05,
+ _OP_CALL= 0x06,
+ _OP_PREPCALL= 0x07,
+ _OP_PREPCALLK= 0x08,
+ _OP_GETK= 0x09,
+ _OP_MOVE= 0x0A,
+ _OP_NEWSLOT= 0x0B,
+ _OP_DELETE= 0x0C,
+ _OP_SET= 0x0D,
+ _OP_GET= 0x0E,
+ _OP_EQ= 0x0F,
+ _OP_NE= 0x10,
+ _OP_ADD= 0x11,
+ _OP_SUB= 0x12,
+ _OP_MUL= 0x13,
+ _OP_DIV= 0x14,
+ _OP_MOD= 0x15,
+ _OP_BITW= 0x16,
+ _OP_RETURN= 0x17,
+ _OP_LOADNULLS= 0x18,
+ _OP_LOADROOT= 0x19,
+ _OP_LOADBOOL= 0x1A,
+ _OP_DMOVE= 0x1B,
+ _OP_JMP= 0x1C,
+ //_OP_JNZ= 0x1D,
+ _OP_JCMP= 0x1D,
+ _OP_JZ= 0x1E,
+ _OP_SETOUTER= 0x1F,
+ _OP_GETOUTER= 0x20,
+ _OP_NEWOBJ= 0x21,
+ _OP_APPENDARRAY= 0x22,
+ _OP_COMPARITH= 0x23,
+ _OP_INC= 0x24,
+ _OP_INCL= 0x25,
+ _OP_PINC= 0x26,
+ _OP_PINCL= 0x27,
+ _OP_CMP= 0x28,
+ _OP_EXISTS= 0x29,
+ _OP_INSTANCEOF= 0x2A,
+ _OP_AND= 0x2B,
+ _OP_OR= 0x2C,
+ _OP_NEG= 0x2D,
+ _OP_NOT= 0x2E,
+ _OP_BWNOT= 0x2F,
+ _OP_CLOSURE= 0x30,
+ _OP_YIELD= 0x31,
+ _OP_RESUME= 0x32,
+ _OP_FOREACH= 0x33,
+ _OP_POSTFOREACH= 0x34,
+ _OP_CLONE= 0x35,
+ _OP_TYPEOF= 0x36,
+ _OP_PUSHTRAP= 0x37,
+ _OP_POPTRAP= 0x38,
+ _OP_THROW= 0x39,
+ _OP_NEWSLOTA= 0x3A,
+ _OP_GETBASE= 0x3B,
+ _OP_CLOSE= 0x3C,
+};
+
+struct SQInstructionDesc {
+ const SQChar *name;
+};
+
+struct SQInstruction
+{
+ SQInstruction(){};
+ SQInstruction(SQOpcode _op,SQInteger a0=0,SQInteger a1=0,SQInteger a2=0,SQInteger a3=0)
+ { op = _op;
+ _arg0 = (unsigned char)a0;_arg1 = (SQInt32)a1;
+ _arg2 = (unsigned char)a2;_arg3 = (unsigned char)a3;
+ }
+
+
+ SQInt32 _arg1;
+ unsigned char op;
+ unsigned char _arg0;
+ unsigned char _arg2;
+ unsigned char _arg3;
+};
+
+#include "squtils.h"
+typedef sqvector<SQInstruction> SQInstructionVec;
+
+#define NEW_SLOT_ATTRIBUTES_FLAG 0x01
+#define NEW_SLOT_STATIC_FLAG 0x02
+
+#endif // _SQOPCODES_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqpcheader.h b/squirrel_3_0_1_stable/squirrel/sqpcheader.h new file mode 100644 index 000000000..f0e5cf2df --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqpcheader.h @@ -0,0 +1,19 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQPCHEADER_H_
+#define _SQPCHEADER_H_
+
+#if defined(_MSC_VER) && defined(_DEBUG)
+#include <crtdbg.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <new>
+//squirrel stuff
+#include <squirrel.h>
+#include "sqobject.h"
+#include "sqstate.h"
+
+#endif //_SQPCHEADER_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqstate.cpp b/squirrel_3_0_1_stable/squirrel/sqstate.cpp new file mode 100644 index 000000000..0bee40661 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqstate.cpp @@ -0,0 +1,648 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#include "sqopcodes.h"
+#include "sqvm.h"
+#include "sqfuncproto.h"
+#include "sqclosure.h"
+#include "sqstring.h"
+#include "sqtable.h"
+#include "sqarray.h"
+#include "squserdata.h"
+#include "sqclass.h"
+
+//SQObjectPtr _null_;
+//SQObjectPtr _true_(true);
+//SQObjectPtr _false_(false);
+//SQObjectPtr _one_((SQInteger)1);
+//SQObjectPtr _minusone_((SQInteger)-1);
+
+SQSharedState::SQSharedState()
+{
+ _compilererrorhandler = NULL;
+ _printfunc = NULL;
+ _errorfunc = NULL;
+ _debuginfo = false;
+ _notifyallexceptions = false;
+}
+
+#define newsysstring(s) { \
+ _systemstrings->push_back(SQString::Create(this,s)); \
+ }
+
+#define newmetamethod(s) { \
+ _metamethods->push_back(SQString::Create(this,s)); \
+ _table(_metamethodsmap)->NewSlot(_metamethods->back(),(SQInteger)(_metamethods->size()-1)); \
+ }
+
+bool CompileTypemask(SQIntVec &res,const SQChar *typemask)
+{
+ SQInteger i = 0;
+
+ SQInteger mask = 0;
+ while(typemask[i] != 0) {
+
+ switch(typemask[i]){
+ case 'o': mask |= _RT_NULL; break;
+ case 'i': mask |= _RT_INTEGER; break;
+ case 'f': mask |= _RT_FLOAT; break;
+ case 'n': mask |= (_RT_FLOAT | _RT_INTEGER); break;
+ case 's': mask |= _RT_STRING; break;
+ case 't': mask |= _RT_TABLE; break;
+ case 'a': mask |= _RT_ARRAY; break;
+ case 'u': mask |= _RT_USERDATA; break;
+ case 'c': mask |= (_RT_CLOSURE | _RT_NATIVECLOSURE); break;
+ case 'b': mask |= _RT_BOOL; break;
+ case 'g': mask |= _RT_GENERATOR; break;
+ case 'p': mask |= _RT_USERPOINTER; break;
+ case 'v': mask |= _RT_THREAD; break;
+ case 'x': mask |= _RT_INSTANCE; break;
+ case 'y': mask |= _RT_CLASS; break;
+ case 'r': mask |= _RT_WEAKREF; break;
+ case '.': mask = -1; res.push_back(mask); i++; mask = 0; continue;
+ case ' ': i++; continue; //ignores spaces
+ default:
+ return false;
+ }
+ i++;
+ if(typemask[i] == '|') {
+ i++;
+ if(typemask[i] == 0)
+ return false;
+ continue;
+ }
+ res.push_back(mask);
+ mask = 0;
+
+ }
+ return true;
+}
+
+SQTable *CreateDefaultDelegate(SQSharedState *ss,SQRegFunction *funcz)
+{
+ SQInteger i=0;
+ SQTable *t=SQTable::Create(ss,0);
+ while(funcz[i].name!=0){
+ SQNativeClosure *nc = SQNativeClosure::Create(ss,funcz[i].f,0);
+ nc->_nparamscheck = funcz[i].nparamscheck;
+ nc->_name = SQString::Create(ss,funcz[i].name);
+ if(funcz[i].typemask && !CompileTypemask(nc->_typecheck,funcz[i].typemask))
+ return NULL;
+ t->NewSlot(SQString::Create(ss,funcz[i].name),nc);
+ i++;
+ }
+ return t;
+}
+
+void SQSharedState::Init()
+{
+ _scratchpad=NULL;
+ _scratchpadsize=0;
+#ifndef NO_GARBAGE_COLLECTOR
+ _gc_chain=NULL;
+#endif
+ _stringtable = (SQStringTable*)SQ_MALLOC(sizeof(SQStringTable));
+ new (_stringtable) SQStringTable(this);
+ sq_new(_metamethods,SQObjectPtrVec);
+ sq_new(_systemstrings,SQObjectPtrVec);
+ sq_new(_types,SQObjectPtrVec);
+ _metamethodsmap = SQTable::Create(this,MT_LAST-1);
+ //adding type strings to avoid memory trashing
+ //types names
+ newsysstring(_SC("null"));
+ newsysstring(_SC("table"));
+ newsysstring(_SC("array"));
+ newsysstring(_SC("closure"));
+ newsysstring(_SC("string"));
+ newsysstring(_SC("userdata"));
+ newsysstring(_SC("integer"));
+ newsysstring(_SC("float"));
+ newsysstring(_SC("userpointer"));
+ newsysstring(_SC("function"));
+ newsysstring(_SC("generator"));
+ newsysstring(_SC("thread"));
+ newsysstring(_SC("class"));
+ newsysstring(_SC("instance"));
+ newsysstring(_SC("bool"));
+ //meta methods
+ newmetamethod(MM_ADD);
+ newmetamethod(MM_SUB);
+ newmetamethod(MM_MUL);
+ newmetamethod(MM_DIV);
+ newmetamethod(MM_UNM);
+ newmetamethod(MM_MODULO);
+ newmetamethod(MM_SET);
+ newmetamethod(MM_GET);
+ newmetamethod(MM_TYPEOF);
+ newmetamethod(MM_NEXTI);
+ newmetamethod(MM_CMP);
+ newmetamethod(MM_CALL);
+ newmetamethod(MM_CLONED);
+ newmetamethod(MM_NEWSLOT);
+ newmetamethod(MM_DELSLOT);
+ newmetamethod(MM_TOSTRING);
+ newmetamethod(MM_NEWMEMBER);
+ newmetamethod(MM_INHERITED);
+
+ _constructoridx = SQString::Create(this,_SC("constructor"));
+ _registry = SQTable::Create(this,0);
+ _consts = SQTable::Create(this,0);
+ _table_default_delegate = CreateDefaultDelegate(this,_table_default_delegate_funcz);
+ _array_default_delegate = CreateDefaultDelegate(this,_array_default_delegate_funcz);
+ _string_default_delegate = CreateDefaultDelegate(this,_string_default_delegate_funcz);
+ _number_default_delegate = CreateDefaultDelegate(this,_number_default_delegate_funcz);
+ _closure_default_delegate = CreateDefaultDelegate(this,_closure_default_delegate_funcz);
+ _generator_default_delegate = CreateDefaultDelegate(this,_generator_default_delegate_funcz);
+ _thread_default_delegate = CreateDefaultDelegate(this,_thread_default_delegate_funcz);
+ _class_default_delegate = CreateDefaultDelegate(this,_class_default_delegate_funcz);
+ _instance_default_delegate = CreateDefaultDelegate(this,_instance_default_delegate_funcz);
+ _weakref_default_delegate = CreateDefaultDelegate(this,_weakref_default_delegate_funcz);
+
+}
+
+SQSharedState::~SQSharedState()
+{
+ _constructoridx.Null();
+ _table(_registry)->Finalize();
+ _table(_consts)->Finalize();
+ _table(_metamethodsmap)->Finalize();
+ _registry.Null();
+ _consts.Null();
+ _metamethodsmap.Null();
+ while(!_systemstrings->empty()) {
+ _systemstrings->back().Null();
+ _systemstrings->pop_back();
+ }
+ _thread(_root_vm)->Finalize();
+ _root_vm.Null();
+ _table_default_delegate.Null();
+ _array_default_delegate.Null();
+ _string_default_delegate.Null();
+ _number_default_delegate.Null();
+ _closure_default_delegate.Null();
+ _generator_default_delegate.Null();
+ _thread_default_delegate.Null();
+ _class_default_delegate.Null();
+ _instance_default_delegate.Null();
+ _weakref_default_delegate.Null();
+ _refs_table.Finalize();
+#ifndef NO_GARBAGE_COLLECTOR
+ SQCollectable *t = _gc_chain;
+ SQCollectable *nx = NULL;
+ while(t) {
+ t->_uiRef++;
+ t->Finalize();
+ nx = t->_next;
+ if(--t->_uiRef == 0)
+ t->Release();
+ t=nx;
+ }
+ assert(_gc_chain==NULL); //just to proove a theory
+ while(_gc_chain){
+ _gc_chain->_uiRef++;
+ _gc_chain->Release();
+ }
+#endif
+
+ sq_delete(_types,SQObjectPtrVec);
+ sq_delete(_systemstrings,SQObjectPtrVec);
+ sq_delete(_metamethods,SQObjectPtrVec);
+ sq_delete(_stringtable,SQStringTable);
+ if(_scratchpad)SQ_FREE(_scratchpad,_scratchpadsize);
+}
+
+
+SQInteger SQSharedState::GetMetaMethodIdxByName(const SQObjectPtr &name)
+{
+ if(type(name) != OT_STRING)
+ return -1;
+ SQObjectPtr ret;
+ if(_table(_metamethodsmap)->Get(name,ret)) {
+ return _integer(ret);
+ }
+ return -1;
+}
+
+#ifndef NO_GARBAGE_COLLECTOR
+
+void SQSharedState::MarkObject(SQObjectPtr &o,SQCollectable **chain)
+{
+ switch(type(o)){
+ case OT_TABLE:_table(o)->Mark(chain);break;
+ case OT_ARRAY:_array(o)->Mark(chain);break;
+ case OT_USERDATA:_userdata(o)->Mark(chain);break;
+ case OT_CLOSURE:_closure(o)->Mark(chain);break;
+ case OT_NATIVECLOSURE:_nativeclosure(o)->Mark(chain);break;
+ case OT_GENERATOR:_generator(o)->Mark(chain);break;
+ case OT_THREAD:_thread(o)->Mark(chain);break;
+ case OT_CLASS:_class(o)->Mark(chain);break;
+ case OT_INSTANCE:_instance(o)->Mark(chain);break;
+ case OT_OUTER:_outer(o)->Mark(chain);break;
+ case OT_FUNCPROTO:_funcproto(o)->Mark(chain);break;
+ default: break; //shutup compiler
+ }
+}
+
+
+void SQSharedState::RunMark(SQVM *vm,SQCollectable **tchain)
+{
+ SQVM *vms = _thread(_root_vm);
+
+ vms->Mark(tchain);
+
+ _refs_table.Mark(tchain);
+ MarkObject(_registry,tchain);
+ MarkObject(_consts,tchain);
+ MarkObject(_metamethodsmap,tchain);
+ MarkObject(_table_default_delegate,tchain);
+ MarkObject(_array_default_delegate,tchain);
+ MarkObject(_string_default_delegate,tchain);
+ MarkObject(_number_default_delegate,tchain);
+ MarkObject(_generator_default_delegate,tchain);
+ MarkObject(_thread_default_delegate,tchain);
+ MarkObject(_closure_default_delegate,tchain);
+ MarkObject(_class_default_delegate,tchain);
+ MarkObject(_instance_default_delegate,tchain);
+ MarkObject(_weakref_default_delegate,tchain);
+
+}
+
+SQInteger SQSharedState::ResurrectUnreachable(SQVM *vm)
+{
+ SQInteger n=0;
+ SQCollectable *tchain=NULL;
+
+ RunMark(vm,&tchain);
+
+ SQCollectable *resurrected = _gc_chain;
+ SQCollectable *t = resurrected;
+ //SQCollectable *nx = NULL;
+
+ _gc_chain = tchain;
+
+ SQArray *ret = NULL;
+ if(resurrected) {
+ ret = SQArray::Create(this,0);
+ SQCollectable *rlast = NULL;
+ while(t) {
+ rlast = t;
+ SQObjectType type = t->GetType();
+ if(type != OT_FUNCPROTO && type != OT_OUTER) {
+ SQObject sqo;
+ sqo._type = type;
+ sqo._unVal.pRefCounted = t;
+ ret->Append(sqo);
+ }
+ t = t->_next;
+ n++;
+ }
+
+ assert(rlast->_next == NULL);
+ rlast->_next = _gc_chain;
+ if(_gc_chain)
+ {
+ _gc_chain->_prev = rlast;
+ }
+ _gc_chain = resurrected;
+ }
+
+ t = _gc_chain;
+ while(t) {
+ t->UnMark();
+ t = t->_next;
+ }
+
+ if(ret) {
+ SQObjectPtr temp = ret;
+ vm->Push(temp);
+ }
+ else {
+ vm->PushNull();
+ }
+ return n;
+}
+
+SQInteger SQSharedState::CollectGarbage(SQVM *vm)
+{
+ SQInteger n=0;
+ SQCollectable *tchain=NULL;
+
+ RunMark(vm,&tchain);
+
+ SQCollectable *t = _gc_chain;
+ SQCollectable *nx = NULL;
+ while(t) {
+ t->_uiRef++;
+ t->Finalize();
+ nx = t->_next;
+ if(--t->_uiRef == 0)
+ t->Release();
+ t = nx;
+ n++;
+ }
+
+ t = tchain;
+ while(t) {
+ t->UnMark();
+ t = t->_next;
+ }
+ _gc_chain = tchain;
+
+ return n;
+}
+#endif
+
+#ifndef NO_GARBAGE_COLLECTOR
+void SQCollectable::AddToChain(SQCollectable **chain,SQCollectable *c)
+{
+ c->_prev = NULL;
+ c->_next = *chain;
+ if(*chain) (*chain)->_prev = c;
+ *chain = c;
+}
+
+void SQCollectable::RemoveFromChain(SQCollectable **chain,SQCollectable *c)
+{
+ if(c->_prev) c->_prev->_next = c->_next;
+ else *chain = c->_next;
+ if(c->_next)
+ c->_next->_prev = c->_prev;
+ c->_next = NULL;
+ c->_prev = NULL;
+}
+#endif
+
+SQChar* SQSharedState::GetScratchPad(SQInteger size)
+{
+ SQInteger newsize;
+ if(size>0) {
+ if(_scratchpadsize < size) {
+ newsize = size + (size>>1);
+ _scratchpad = (SQChar *)SQ_REALLOC(_scratchpad,_scratchpadsize,newsize);
+ _scratchpadsize = newsize;
+
+ }else if(_scratchpadsize >= (size<<5)) {
+ newsize = _scratchpadsize >> 1;
+ _scratchpad = (SQChar *)SQ_REALLOC(_scratchpad,_scratchpadsize,newsize);
+ _scratchpadsize = newsize;
+ }
+ }
+ return _scratchpad;
+}
+
+RefTable::RefTable()
+{
+ AllocNodes(4);
+}
+
+void RefTable::Finalize()
+{
+ RefNode *nodes = _nodes;
+ for(SQUnsignedInteger n = 0; n < _numofslots; n++) {
+ nodes->obj.Null();
+ nodes++;
+ }
+}
+
+RefTable::~RefTable()
+{
+ SQ_FREE(_buckets,(_numofslots * sizeof(RefNode *)) + (_numofslots * sizeof(RefNode)));
+}
+
+#ifndef NO_GARBAGE_COLLECTOR
+void RefTable::Mark(SQCollectable **chain)
+{
+ RefNode *nodes = (RefNode *)_nodes;
+ for(SQUnsignedInteger n = 0; n < _numofslots; n++) {
+ if(type(nodes->obj) != OT_NULL) {
+ SQSharedState::MarkObject(nodes->obj,chain);
+ }
+ nodes++;
+ }
+}
+#endif
+
+void RefTable::AddRef(SQObject &obj)
+{
+ SQHash mainpos;
+ RefNode *prev;
+ RefNode *ref = Get(obj,mainpos,&prev,true);
+ ref->refs++;
+}
+
+SQUnsignedInteger RefTable::GetRefCount(SQObject &obj)
+{
+ SQHash mainpos;
+ RefNode *prev;
+ RefNode *ref = Get(obj,mainpos,&prev,true);
+ return ref->refs;
+}
+
+
+SQBool RefTable::Release(SQObject &obj)
+{
+ SQHash mainpos;
+ RefNode *prev;
+ RefNode *ref = Get(obj,mainpos,&prev,false);
+ if(ref) {
+ if(--ref->refs == 0) {
+ SQObjectPtr o = ref->obj;
+ if(prev) {
+ prev->next = ref->next;
+ }
+ else {
+ _buckets[mainpos] = ref->next;
+ }
+ ref->next = _freelist;
+ _freelist = ref;
+ _slotused--;
+ ref->obj.Null();
+ //<<FIXME>>test for shrink?
+ return SQTrue;
+ }
+ }
+ else {
+ assert(0);
+ }
+ return SQFalse;
+}
+
+void RefTable::Resize(SQUnsignedInteger size)
+{
+ RefNode **oldbucks = _buckets;
+ RefNode *t = _nodes;
+ SQUnsignedInteger oldnumofslots = _numofslots;
+ AllocNodes(size);
+ //rehash
+ SQUnsignedInteger nfound = 0;
+ for(SQUnsignedInteger n = 0; n < oldnumofslots; n++) {
+ if(type(t->obj) != OT_NULL) {
+ //add back;
+ assert(t->refs != 0);
+ RefNode *nn = Add(::HashObj(t->obj)&(_numofslots-1),t->obj);
+ nn->refs = t->refs;
+ t->obj.Null();
+ nfound++;
+ }
+ t++;
+ }
+ assert(nfound == oldnumofslots);
+ SQ_FREE(oldbucks,(oldnumofslots * sizeof(RefNode *)) + (oldnumofslots * sizeof(RefNode)));
+}
+
+RefTable::RefNode *RefTable::Add(SQHash mainpos,SQObject &obj)
+{
+ RefNode *t = _buckets[mainpos];
+ RefNode *newnode = _freelist;
+ newnode->obj = obj;
+ _buckets[mainpos] = newnode;
+ _freelist = _freelist->next;
+ newnode->next = t;
+ assert(newnode->refs == 0);
+ _slotused++;
+ return newnode;
+}
+
+RefTable::RefNode *RefTable::Get(SQObject &obj,SQHash &mainpos,RefNode **prev,bool add)
+{
+ RefNode *ref;
+ mainpos = ::HashObj(obj)&(_numofslots-1);
+ *prev = NULL;
+ for (ref = _buckets[mainpos]; ref; ) {
+ if(_rawval(ref->obj) == _rawval(obj) && type(ref->obj) == type(obj))
+ break;
+ *prev = ref;
+ ref = ref->next;
+ }
+ if(ref == NULL && add) {
+ if(_numofslots == _slotused) {
+ assert(_freelist == 0);
+ Resize(_numofslots*2);
+ mainpos = ::HashObj(obj)&(_numofslots-1);
+ }
+ ref = Add(mainpos,obj);
+ }
+ return ref;
+}
+
+void RefTable::AllocNodes(SQUnsignedInteger size)
+{
+ RefNode **bucks;
+ RefNode *nodes;
+ bucks = (RefNode **)SQ_MALLOC((size * sizeof(RefNode *)) + (size * sizeof(RefNode)));
+ nodes = (RefNode *)&bucks[size];
+ RefNode *temp = nodes;
+ SQUnsignedInteger n;
+ for(n = 0; n < size - 1; n++) {
+ bucks[n] = NULL;
+ temp->refs = 0;
+ new (&temp->obj) SQObjectPtr;
+ temp->next = temp+1;
+ temp++;
+ }
+ bucks[n] = NULL;
+ temp->refs = 0;
+ new (&temp->obj) SQObjectPtr;
+ temp->next = NULL;
+ _freelist = nodes;
+ _nodes = nodes;
+ _buckets = bucks;
+ _slotused = 0;
+ _numofslots = size;
+}
+//////////////////////////////////////////////////////////////////////////
+//SQStringTable
+/*
+* The following code is based on Lua 4.0 (Copyright 1994-2002 Tecgraf, PUC-Rio.)
+* http://www.lua.org/copyright.html#4
+* http://www.lua.org/source/4.0.1/src_lstring.c.html
+*/
+
+SQStringTable::SQStringTable(SQSharedState *ss)
+{
+ _sharedstate = ss;
+ AllocNodes(4);
+ _slotused = 0;
+}
+
+SQStringTable::~SQStringTable()
+{
+ SQ_FREE(_strings,sizeof(SQString*)*_numofslots);
+ _strings = NULL;
+}
+
+void SQStringTable::AllocNodes(SQInteger size)
+{
+ _numofslots = size;
+ _strings = (SQString**)SQ_MALLOC(sizeof(SQString*)*_numofslots);
+ memset(_strings,0,sizeof(SQString*)*_numofslots);
+}
+
+SQString *SQStringTable::Add(const SQChar *news,SQInteger len)
+{
+ if(len<0)
+ len = (SQInteger)scstrlen(news);
+ SQHash h = ::_hashstr(news,len)&(_numofslots-1);
+ SQString *s;
+ for (s = _strings[h]; s; s = s->_next){
+ if(s->_len == len && (!memcmp(news,s->_val,rsl(len))))
+ return s; //found
+ }
+
+ SQString *t=(SQString *)SQ_MALLOC(rsl(len)+sizeof(SQString));
+ new (t) SQString;
+ t->_sharedstate = _sharedstate;
+ memcpy(t->_val,news,rsl(len));
+ t->_val[len] = _SC('\0');
+ t->_len = len;
+ t->_hash = ::_hashstr(news,len);
+ t->_next = _strings[h];
+ _strings[h] = t;
+ _slotused++;
+ if (_slotused > _numofslots) /* too crowded? */
+ Resize(_numofslots*2);
+ return t;
+}
+
+void SQStringTable::Resize(SQInteger size)
+{
+ SQInteger oldsize=_numofslots;
+ SQString **oldtable=_strings;
+ AllocNodes(size);
+ for (SQInteger i=0; i<oldsize; i++){
+ SQString *p = oldtable[i];
+ while(p){
+ SQString *next = p->_next;
+ SQHash h = p->_hash&(_numofslots-1);
+ p->_next = _strings[h];
+ _strings[h] = p;
+ p = next;
+ }
+ }
+ SQ_FREE(oldtable,oldsize*sizeof(SQString*));
+}
+
+void SQStringTable::Remove(SQString *bs)
+{
+ SQString *s;
+ SQString *prev=NULL;
+ SQHash h = bs->_hash&(_numofslots - 1);
+
+ for (s = _strings[h]; s; ){
+ if(s == bs){
+ if(prev)
+ prev->_next = s->_next;
+ else
+ _strings[h] = s->_next;
+ _slotused--;
+ SQInteger slen = s->_len;
+ s->~SQString();
+ SQ_FREE(s,sizeof(SQString) + rsl(slen));
+ return;
+ }
+ prev = s;
+ s = s->_next;
+ }
+ assert(0);//if this fail something is wrong
+}
diff --git a/squirrel_3_0_1_stable/squirrel/sqstate.h b/squirrel_3_0_1_stable/squirrel/sqstate.h new file mode 100644 index 000000000..3ed3307d7 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqstate.h @@ -0,0 +1,144 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQSTATE_H_
+#define _SQSTATE_H_
+
+#include "squtils.h"
+#include "sqobject.h"
+struct SQString;
+struct SQTable;
+//max number of character for a printed number
+#define NUMBER_MAX_CHAR 50
+
+struct SQStringTable
+{
+ SQStringTable(SQSharedState*ss);
+ ~SQStringTable();
+ SQString *Add(const SQChar *,SQInteger len);
+ void Remove(SQString *);
+private:
+ void Resize(SQInteger size);
+ void AllocNodes(SQInteger size);
+ SQString **_strings;
+ SQUnsignedInteger _numofslots;
+ SQUnsignedInteger _slotused;
+ SQSharedState *_sharedstate;
+};
+
+struct RefTable {
+ struct RefNode {
+ SQObjectPtr obj;
+ SQUnsignedInteger refs;
+ struct RefNode *next;
+ };
+ RefTable();
+ ~RefTable();
+ void AddRef(SQObject &obj);
+ SQBool Release(SQObject &obj);
+ SQUnsignedInteger GetRefCount(SQObject &obj);
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+#endif
+ void Finalize();
+private:
+ RefNode *Get(SQObject &obj,SQHash &mainpos,RefNode **prev,bool add);
+ RefNode *Add(SQHash mainpos,SQObject &obj);
+ void Resize(SQUnsignedInteger size);
+ void AllocNodes(SQUnsignedInteger size);
+ SQUnsignedInteger _numofslots;
+ SQUnsignedInteger _slotused;
+ RefNode *_nodes;
+ RefNode *_freelist;
+ RefNode **_buckets;
+};
+
+#define ADD_STRING(ss,str,len) ss->_stringtable->Add(str,len)
+#define REMOVE_STRING(ss,bstr) ss->_stringtable->Remove(bstr)
+
+struct SQObjectPtr;
+
+struct SQSharedState
+{
+ SQSharedState();
+ ~SQSharedState();
+ void Init();
+public:
+ SQChar* GetScratchPad(SQInteger size);
+ SQInteger GetMetaMethodIdxByName(const SQObjectPtr &name);
+#ifndef NO_GARBAGE_COLLECTOR
+ SQInteger CollectGarbage(SQVM *vm);
+ void RunMark(SQVM *vm,SQCollectable **tchain);
+ SQInteger ResurrectUnreachable(SQVM *vm);
+ static void MarkObject(SQObjectPtr &o,SQCollectable **chain);
+#endif
+ SQObjectPtrVec *_metamethods;
+ SQObjectPtr _metamethodsmap;
+ SQObjectPtrVec *_systemstrings;
+ SQObjectPtrVec *_types;
+ SQStringTable *_stringtable;
+ RefTable _refs_table;
+ SQObjectPtr _registry;
+ SQObjectPtr _consts;
+ SQObjectPtr _constructoridx;
+#ifndef NO_GARBAGE_COLLECTOR
+ SQCollectable *_gc_chain;
+#endif
+ SQObjectPtr _root_vm;
+ SQObjectPtr _table_default_delegate;
+ static SQRegFunction _table_default_delegate_funcz[];
+ SQObjectPtr _array_default_delegate;
+ static SQRegFunction _array_default_delegate_funcz[];
+ SQObjectPtr _string_default_delegate;
+ static SQRegFunction _string_default_delegate_funcz[];
+ SQObjectPtr _number_default_delegate;
+ static SQRegFunction _number_default_delegate_funcz[];
+ SQObjectPtr _generator_default_delegate;
+ static SQRegFunction _generator_default_delegate_funcz[];
+ SQObjectPtr _closure_default_delegate;
+ static SQRegFunction _closure_default_delegate_funcz[];
+ SQObjectPtr _thread_default_delegate;
+ static SQRegFunction _thread_default_delegate_funcz[];
+ SQObjectPtr _class_default_delegate;
+ static SQRegFunction _class_default_delegate_funcz[];
+ SQObjectPtr _instance_default_delegate;
+ static SQRegFunction _instance_default_delegate_funcz[];
+ SQObjectPtr _weakref_default_delegate;
+ static SQRegFunction _weakref_default_delegate_funcz[];
+
+ SQCOMPILERERROR _compilererrorhandler;
+ SQPRINTFUNCTION _printfunc;
+ SQPRINTFUNCTION _errorfunc;
+ bool _debuginfo;
+ bool _notifyallexceptions;
+private:
+ SQChar *_scratchpad;
+ SQInteger _scratchpadsize;
+};
+
+#define _sp(s) (_sharedstate->GetScratchPad(s))
+#define _spval (_sharedstate->GetScratchPad(-1))
+
+#define _table_ddel _table(_sharedstate->_table_default_delegate)
+#define _array_ddel _table(_sharedstate->_array_default_delegate)
+#define _string_ddel _table(_sharedstate->_string_default_delegate)
+#define _number_ddel _table(_sharedstate->_number_default_delegate)
+#define _generator_ddel _table(_sharedstate->_generator_default_delegate)
+#define _closure_ddel _table(_sharedstate->_closure_default_delegate)
+#define _thread_ddel _table(_sharedstate->_thread_default_delegate)
+#define _class_ddel _table(_sharedstate->_class_default_delegate)
+#define _instance_ddel _table(_sharedstate->_instance_default_delegate)
+#define _weakref_ddel _table(_sharedstate->_weakref_default_delegate)
+
+#ifdef SQUNICODE //rsl REAL STRING LEN
+#define rsl(l) ((l)<<1)
+#else
+#define rsl(l) (l)
+#endif
+
+//extern SQObjectPtr _null_;
+
+bool CompileTypemask(SQIntVec &res,const SQChar *typemask);
+
+void *sq_vm_malloc(SQUnsignedInteger size);
+void *sq_vm_realloc(void *p,SQUnsignedInteger oldsize,SQUnsignedInteger size);
+void sq_vm_free(void *p,SQUnsignedInteger size);
+#endif //_SQSTATE_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqstring.h b/squirrel_3_0_1_stable/squirrel/sqstring.h new file mode 100644 index 000000000..235d19059 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqstring.h @@ -0,0 +1,31 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQSTRING_H_
+#define _SQSTRING_H_
+
+inline SQHash _hashstr (const SQChar *s, size_t l)
+{
+ SQHash h = (SQHash)l; /* seed */
+ size_t step = (l>>5)|1; /* if string is too long, don't hash all its chars */
+ for (; l>=step; l-=step)
+ h = h ^ ((h<<5)+(h>>2)+(unsigned short)*(s++));
+ return h;
+}
+
+struct SQString : public SQRefCounted
+{
+ SQString(){}
+ ~SQString(){}
+public:
+ static SQString *Create(SQSharedState *ss, const SQChar *, SQInteger len = -1 );
+ SQInteger Next(const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval);
+ void Release();
+ SQSharedState *_sharedstate;
+ SQString *_next; //chain for the string table
+ SQInteger _len;
+ SQHash _hash;
+ SQChar _val[1];
+};
+
+
+
+#endif //_SQSTRING_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqtable.cpp b/squirrel_3_0_1_stable/squirrel/sqtable.cpp new file mode 100644 index 000000000..fe3d5f2a1 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqtable.cpp @@ -0,0 +1,220 @@ +/*
+see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#include "sqvm.h"
+#include "sqtable.h"
+#include "sqfuncproto.h"
+#include "sqclosure.h"
+
+SQTable::SQTable(SQSharedState *ss,SQInteger nInitialSize)
+{
+ SQInteger pow2size=MINPOWER2;
+ while(nInitialSize>pow2size)pow2size=pow2size<<1;
+ AllocNodes(pow2size);
+ _usednodes = 0;
+ _delegate = NULL;
+ INIT_CHAIN();
+ ADD_TO_CHAIN(&_sharedstate->_gc_chain,this);
+}
+
+void SQTable::Remove(const SQObjectPtr &key)
+{
+
+ _HashNode *n = _Get(key, HashObj(key) & (_numofnodes - 1));
+ if (n) {
+ n->val.Null();
+ n->key.Null();
+ _usednodes--;
+ Rehash(false);
+ }
+}
+
+void SQTable::AllocNodes(SQInteger nSize)
+{
+ _HashNode *nodes=(_HashNode *)SQ_MALLOC(sizeof(_HashNode)*nSize);
+ for(SQInteger i=0;i<nSize;i++){
+ _HashNode &n = nodes[i];
+ new (&n) _HashNode;
+ n.next=NULL;
+ }
+ _numofnodes=nSize;
+ _nodes=nodes;
+ _firstfree=&_nodes[_numofnodes-1];
+}
+
+void SQTable::Rehash(bool force)
+{
+ SQInteger oldsize=_numofnodes;
+ //prevent problems with the integer division
+ if(oldsize<4)oldsize=4;
+ _HashNode *nold=_nodes;
+ SQInteger nelems=CountUsed();
+ if (nelems >= oldsize-oldsize/4) /* using more than 3/4? */
+ AllocNodes(oldsize*2);
+ else if (nelems <= oldsize/4 && /* less than 1/4? */
+ oldsize > MINPOWER2)
+ AllocNodes(oldsize/2);
+ else if(force)
+ AllocNodes(oldsize);
+ else
+ return;
+ _usednodes = 0;
+ for (SQInteger i=0; i<oldsize; i++) {
+ _HashNode *old = nold+i;
+ if (type(old->key) != OT_NULL)
+ NewSlot(old->key,old->val);
+ }
+ for(SQInteger k=0;k<oldsize;k++)
+ nold[k].~_HashNode();
+ SQ_FREE(nold,oldsize*sizeof(_HashNode));
+}
+
+SQTable *SQTable::Clone()
+{
+ SQTable *nt=Create(_opt_ss(this),_numofnodes);
+#ifdef _FAST_CLONE
+ _HashNode *basesrc = _nodes;
+ _HashNode *basedst = nt->_nodes;
+ _HashNode *src = _nodes;
+ _HashNode *dst = nt->_nodes;
+ SQInteger n = 0;
+ for(n = 0; n < _numofnodes; n++) {
+ dst->key = src->key;
+ dst->val = src->val;
+ if(src->next) {
+ assert(src->next > basesrc);
+ dst->next = basedst + (src->next - basesrc);
+ assert(dst != dst->next);
+ }
+ dst++;
+ src++;
+ }
+ assert(_firstfree > basesrc);
+ assert(_firstfree != NULL);
+ nt->_firstfree = basedst + (_firstfree - basesrc);
+#else
+ SQInteger ridx=0;
+ SQObjectPtr key,val;
+ while((ridx=Next(true,ridx,key,val))!=-1){
+ nt->NewSlot(key,val);
+ }
+#endif
+ nt->SetDelegate(_delegate);
+ return nt;
+}
+
+bool SQTable::Get(const SQObjectPtr &key,SQObjectPtr &val)
+{
+ if(type(key) == OT_NULL)
+ return false;
+ _HashNode *n = _Get(key, HashObj(key) & (_numofnodes - 1));
+ if (n) {
+ val = _realval(n->val);
+ return true;
+ }
+ return false;
+}
+bool SQTable::NewSlot(const SQObjectPtr &key,const SQObjectPtr &val)
+{
+ assert(type(key) != OT_NULL);
+ SQHash h = HashObj(key) & (_numofnodes - 1);
+ _HashNode *n = _Get(key, h);
+ if (n) {
+ n->val = val;
+ return false;
+ }
+ _HashNode *mp = &_nodes[h];
+ n = mp;
+
+
+ //key not found I'll insert it
+ //main pos is not free
+
+ if(type(mp->key) != OT_NULL) {
+ n = _firstfree; /* get a free place */
+ SQHash mph = HashObj(mp->key) & (_numofnodes - 1);
+ _HashNode *othern; /* main position of colliding node */
+
+ if (mp > n && (othern = &_nodes[mph]) != mp){
+ /* yes; move colliding node into free position */
+ while (othern->next != mp){
+ assert(othern->next != NULL);
+ othern = othern->next; /* find previous */
+ }
+ othern->next = n; /* redo the chain with `n' in place of `mp' */
+ n->key = mp->key;
+ n->val = mp->val;/* copy colliding node into free pos. (mp->next also goes) */
+ n->next = mp->next;
+ mp->key.Null();
+ mp->val.Null();
+ mp->next = NULL; /* now `mp' is free */
+ }
+ else{
+ /* new node will go into free position */
+ n->next = mp->next; /* chain new position */
+ mp->next = n;
+ mp = n;
+ }
+ }
+ mp->key = key;
+
+ for (;;) { /* correct `firstfree' */
+ if (type(_firstfree->key) == OT_NULL && _firstfree->next == NULL) {
+ mp->val = val;
+ _usednodes++;
+ return true; /* OK; table still has a free place */
+ }
+ else if (_firstfree == _nodes) break; /* cannot decrement from here */
+ else (_firstfree)--;
+ }
+ Rehash(true);
+ return NewSlot(key, val);
+}
+
+SQInteger SQTable::Next(bool getweakrefs,const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval)
+{
+ SQInteger idx = (SQInteger)TranslateIndex(refpos);
+ while (idx < _numofnodes) {
+ if(type(_nodes[idx].key) != OT_NULL) {
+ //first found
+ _HashNode &n = _nodes[idx];
+ outkey = n.key;
+ outval = getweakrefs?(SQObject)n.val:_realval(n.val);
+ //return idx for the next iteration
+ return ++idx;
+ }
+ ++idx;
+ }
+ //nothing to iterate anymore
+ return -1;
+}
+
+
+bool SQTable::Set(const SQObjectPtr &key, const SQObjectPtr &val)
+{
+ _HashNode *n = _Get(key, HashObj(key) & (_numofnodes - 1));
+ if (n) {
+ n->val = val;
+ return true;
+ }
+ return false;
+}
+
+void SQTable::_ClearNodes()
+{
+ for(SQInteger i = 0;i < _numofnodes; i++) { _HashNode &n = _nodes[i]; n.key.Null(); n.val.Null(); }
+}
+
+void SQTable::Finalize()
+{
+ _ClearNodes();
+ SetDelegate(NULL);
+}
+
+void SQTable::Clear()
+{
+ _ClearNodes();
+ _usednodes = 0;
+ Rehash(true);
+}
diff --git a/squirrel_3_0_1_stable/squirrel/sqtable.h b/squirrel_3_0_1_stable/squirrel/sqtable.h new file mode 100644 index 000000000..2f6487023 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqtable.h @@ -0,0 +1,92 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQTABLE_H_
+#define _SQTABLE_H_
+/*
+* The following code is based on Lua 4.0 (Copyright 1994-2002 Tecgraf, PUC-Rio.)
+* http://www.lua.org/copyright.html#4
+* http://www.lua.org/source/4.0.1/src_ltable.c.html
+*/
+
+#include "sqstring.h"
+
+
+#define hashptr(p) ((SQHash)(((SQInteger)p) >> 3))
+
+inline SQHash HashObj(const SQObjectPtr &key)
+{
+ switch(type(key)) {
+ case OT_STRING: return _string(key)->_hash;
+ case OT_FLOAT: return (SQHash)((SQInteger)_float(key));
+ case OT_BOOL: case OT_INTEGER: return (SQHash)((SQInteger)_integer(key));
+ default: return hashptr(key._unVal.pRefCounted);
+ }
+}
+
+struct SQTable : public SQDelegable
+{
+private:
+ struct _HashNode
+ {
+ _HashNode() { next = NULL; }
+ SQObjectPtr val;
+ SQObjectPtr key;
+ _HashNode *next;
+ };
+ _HashNode *_firstfree;
+ _HashNode *_nodes;
+ SQInteger _numofnodes;
+ SQInteger _usednodes;
+
+///////////////////////////
+ void AllocNodes(SQInteger nSize);
+ void Rehash(bool force);
+ SQTable(SQSharedState *ss, SQInteger nInitialSize);
+ void _ClearNodes();
+public:
+ static SQTable* Create(SQSharedState *ss,SQInteger nInitialSize)
+ {
+ SQTable *newtable = (SQTable*)SQ_MALLOC(sizeof(SQTable));
+ new (newtable) SQTable(ss, nInitialSize);
+ newtable->_delegate = NULL;
+ return newtable;
+ }
+ void Finalize();
+ SQTable *Clone();
+ ~SQTable()
+ {
+ SetDelegate(NULL);
+ REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
+ for (SQInteger i = 0; i < _numofnodes; i++) _nodes[i].~_HashNode();
+ SQ_FREE(_nodes, _numofnodes * sizeof(_HashNode));
+ }
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+ SQObjectType GetType() {return OT_TABLE;}
+#endif
+ inline _HashNode *_Get(const SQObjectPtr &key,SQHash hash)
+ {
+ _HashNode *n = &_nodes[hash];
+ do{
+ if(_rawval(n->key) == _rawval(key) && type(n->key) == type(key)){
+ return n;
+ }
+ }while((n = n->next));
+ return NULL;
+ }
+ bool Get(const SQObjectPtr &key,SQObjectPtr &val);
+ void Remove(const SQObjectPtr &key);
+ bool Set(const SQObjectPtr &key, const SQObjectPtr &val);
+ //returns true if a new slot has been created false if it was already present
+ bool NewSlot(const SQObjectPtr &key,const SQObjectPtr &val);
+ SQInteger Next(bool getweakrefs,const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval);
+
+ SQInteger CountUsed(){ return _usednodes;}
+ void Clear();
+ void Release()
+ {
+ sq_delete(this, SQTable);
+ }
+
+};
+
+#endif //_SQTABLE_H_
diff --git a/squirrel_3_0_1_stable/squirrel/squirrel.dsp b/squirrel_3_0_1_stable/squirrel/squirrel.dsp new file mode 100644 index 000000000..4778b6963 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/squirrel.dsp @@ -0,0 +1,302 @@ +# Microsoft Developer Studio Project File - Name="squirrel" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Static Library" 0x0104
+
+CFG=squirrel - Win32 Debug
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE
+!MESSAGE NMAKE /f "squirrel.mak".
+!MESSAGE
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE
+!MESSAGE NMAKE /f "squirrel.mak" CFG="squirrel - Win32 Debug"
+!MESSAGE
+!MESSAGE Possible choices for configuration are:
+!MESSAGE
+!MESSAGE "squirrel - Win32 Release" (based on "Win32 (x86) Static Library")
+!MESSAGE "squirrel - Win32 Debug" (based on "Win32 (x86) Static Library")
+!MESSAGE
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_LocalPath ".."
+CPP=cl.exe
+RSC=rc.exe
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c
+# ADD CPP /nologo /W3 /GX /O2 /I "..\include" /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /D "GARBAGE_COLLECTOR" /YX /FD /c
+# ADD BASE RSC /l 0x410 /d "NDEBUG"
+# ADD RSC /l 0x410 /d "NDEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo /out:"..\lib\squirrel.lib"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "Debug"
+# PROP Intermediate_Dir "Debug"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
+# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /I "..\include" /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
+# ADD BASE RSC /l 0x410 /d "_DEBUG"
+# ADD RSC /l 0x410 /d "_DEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo /out:"..\lib\squirrel.lib"
+
+!ENDIF
+
+# Begin Target
+
+# Name "squirrel - Win32 Release"
+# Name "squirrel - Win32 Debug"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
+# Begin Source File
+
+SOURCE=.\sqapi.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqbaselib.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqcompiler.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqdebug.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqfuncstate.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqlexer.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqmem.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqobject.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstate.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqtable.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqclass.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqvm.cpp
+
+!IF "$(CFG)" == "squirrel - Win32 Release"
+
+!ELSEIF "$(CFG)" == "squirrel - Win32 Debug"
+
+# ADD CPP /YX"stdafx.h"
+
+!ENDIF
+
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h;hpp;hxx;hm;inl"
+# Begin Source File
+
+SOURCE=.\sqarray.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqclosure.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqcompiler.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqfuncproto.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqfuncstate.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqlexer.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqobject.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqopcodes.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqpcheader.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstate.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstring.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqtable.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\squserdata.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\squtils.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqclass.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqvm.h
+# End Source File
+# End Group
+# End Target
+# End Project
diff --git a/squirrel_3_0_1_stable/squirrel/squserdata.h b/squirrel_3_0_1_stable/squirrel/squserdata.h new file mode 100644 index 000000000..dea27ae78 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/squserdata.h @@ -0,0 +1,40 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQUSERDATA_H_
+#define _SQUSERDATA_H_
+
+struct SQUserData : SQDelegable
+{
+ SQUserData(SQSharedState *ss){ _delegate = 0; _hook = NULL; INIT_CHAIN(); ADD_TO_CHAIN(&_ss(this)->_gc_chain, this); }
+ ~SQUserData()
+ {
+ REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain, this);
+ SetDelegate(NULL);
+ }
+ static SQUserData* Create(SQSharedState *ss, SQInteger size)
+ {
+ SQUserData* ud = (SQUserData*)SQ_MALLOC(sq_aligning(sizeof(SQUserData))+size);
+ new (ud) SQUserData(ss);
+ ud->_size = size;
+ ud->_typetag = 0;
+ return ud;
+ }
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+ void Finalize(){SetDelegate(NULL);}
+ SQObjectType GetType(){ return OT_USERDATA;}
+#endif
+ void Release() {
+ if (_hook) _hook((SQUserPointer)sq_aligning(this + 1),_size);
+ SQInteger tsize = _size;
+ this->~SQUserData();
+ SQ_FREE(this, sq_aligning(sizeof(SQUserData)) + tsize);
+ }
+
+
+ SQInteger _size;
+ SQRELEASEHOOK _hook;
+ SQUserPointer _typetag;
+ //SQChar _val[1];
+};
+
+#endif //_SQUSERDATA_H_
diff --git a/squirrel_3_0_1_stable/squirrel/squtils.h b/squirrel_3_0_1_stable/squirrel/squtils.h new file mode 100644 index 000000000..bff7d24bb --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/squtils.h @@ -0,0 +1,112 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQUTILS_H_
+#define _SQUTILS_H_
+
+#define sq_new(__ptr,__type) {__ptr=(__type *)sq_vm_malloc(sizeof(__type));new (__ptr) __type;}
+#define sq_delete(__ptr,__type) {__ptr->~__type();sq_vm_free(__ptr,sizeof(__type));}
+#define SQ_MALLOC(__size) sq_vm_malloc((__size));
+#define SQ_FREE(__ptr,__size) sq_vm_free((__ptr),(__size));
+#define SQ_REALLOC(__ptr,__oldsize,__size) sq_vm_realloc((__ptr),(__oldsize),(__size));
+
+#define sq_aligning(v) (((size_t)(v) + (SQ_ALIGNMENT-1)) & (~(SQ_ALIGNMENT-1)))
+
+//sqvector mini vector class, supports objects by value
+template<typename T> class sqvector
+{
+public:
+ sqvector()
+ {
+ _vals = NULL;
+ _size = 0;
+ _allocated = 0;
+ }
+ sqvector(const sqvector<T>& v)
+ {
+ copy(v);
+ }
+ void copy(const sqvector<T>& v)
+ {
+ if(_size) {
+ resize(0); //destroys all previous stuff
+ }
+ //resize(v._size);
+ if(v._size > _allocated) {
+ _realloc(v._size);
+ }
+ for(SQUnsignedInteger i = 0; i < v._size; i++) {
+ new ((void *)&_vals[i]) T(v._vals[i]);
+ }
+ _size = v._size;
+ }
+ ~sqvector()
+ {
+ if(_allocated) {
+ for(SQUnsignedInteger i = 0; i < _size; i++)
+ _vals[i].~T();
+ SQ_FREE(_vals, (_allocated * sizeof(T)));
+ }
+ }
+ void reserve(SQUnsignedInteger newsize) { _realloc(newsize); }
+ void resize(SQUnsignedInteger newsize, const T& fill = T())
+ {
+ if(newsize > _allocated)
+ _realloc(newsize);
+ if(newsize > _size) {
+ while(_size < newsize) {
+ new ((void *)&_vals[_size]) T(fill);
+ _size++;
+ }
+ }
+ else{
+ for(SQUnsignedInteger i = newsize; i < _size; i++) {
+ _vals[i].~T();
+ }
+ _size = newsize;
+ }
+ }
+ void shrinktofit() { if(_size > 4) { _realloc(_size); } }
+ T& top() const { return _vals[_size - 1]; }
+ inline SQUnsignedInteger size() const { return _size; }
+ bool empty() const { return (_size <= 0); }
+ inline T &push_back(const T& val = T())
+ {
+ if(_allocated <= _size)
+ _realloc(_size * 2);
+ return *(new ((void *)&_vals[_size++]) T(val));
+ }
+ inline void pop_back()
+ {
+ _size--; _vals[_size].~T();
+ }
+ void insert(SQUnsignedInteger idx, const T& val)
+ {
+ resize(_size + 1);
+ for(SQUnsignedInteger i = _size - 1; i > idx; i--) {
+ _vals[i] = _vals[i - 1];
+ }
+ _vals[idx] = val;
+ }
+ void remove(SQUnsignedInteger idx)
+ {
+ _vals[idx].~T();
+ if(idx < (_size - 1)) {
+ memcpy(&_vals[idx], &_vals[idx+1], sizeof(T) * (_size - idx - 1));
+ }
+ _size--;
+ }
+ SQUnsignedInteger capacity() { return _allocated; }
+ inline T &back() const { return _vals[_size - 1]; }
+ inline T& operator[](SQUnsignedInteger pos) const{ return _vals[pos]; }
+ T* _vals;
+private:
+ void _realloc(SQUnsignedInteger newsize)
+ {
+ newsize = (newsize > 0)?newsize:4;
+ _vals = (T*)SQ_REALLOC(_vals, _allocated * sizeof(T), newsize * sizeof(T));
+ _allocated = newsize;
+ }
+ SQUnsignedInteger _size;
+ SQUnsignedInteger _allocated;
+};
+
+#endif //_SQUTILS_H_
diff --git a/squirrel_3_0_1_stable/squirrel/sqvm.cpp b/squirrel_3_0_1_stable/squirrel/sqvm.cpp new file mode 100644 index 000000000..bd8ebcc1a --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqvm.cpp @@ -0,0 +1,1714 @@ +/*
+ see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+#include <math.h>
+#include <stdlib.h>
+#include "sqopcodes.h"
+#include "sqvm.h"
+#include "sqfuncproto.h"
+#include "sqclosure.h"
+#include "sqstring.h"
+#include "sqtable.h"
+#include "squserdata.h"
+#include "sqarray.h"
+#include "sqclass.h"
+
+#define TOP() (_stack._vals[_top-1])
+
+bool SQVM::BW_OP(SQUnsignedInteger op,SQObjectPtr &trg,const SQObjectPtr &o1,const SQObjectPtr &o2)
+{
+ SQInteger res;
+ if((type(o1)|type(o2)) == OT_INTEGER)
+ {
+ SQInteger i1 = _integer(o1), i2 = _integer(o2);
+ switch(op) {
+ case BW_AND: res = i1 & i2; break;
+ case BW_OR: res = i1 | i2; break;
+ case BW_XOR: res = i1 ^ i2; break;
+ case BW_SHIFTL: res = i1 << i2; break;
+ case BW_SHIFTR: res = i1 >> i2; break;
+ case BW_USHIFTR:res = (SQInteger)(*((SQUnsignedInteger*)&i1) >> i2); break;
+ default: { Raise_Error(_SC("internal vm error bitwise op failed")); return false; }
+ }
+ }
+ else { Raise_Error(_SC("bitwise op between '%s' and '%s'"),GetTypeName(o1),GetTypeName(o2)); return false;}
+ trg = res;
+ return true;
+}
+
+#define _ARITH_(op,trg,o1,o2) \
+{ \
+ SQInteger tmask = type(o1)|type(o2); \
+ switch(tmask) { \
+ case OT_INTEGER: trg = _integer(o1) op _integer(o2);break; \
+ case (OT_FLOAT|OT_INTEGER): \
+ case (OT_FLOAT): trg = tofloat(o1) op tofloat(o2); break;\
+ default: _GUARD(ARITH_OP((#op)[0],trg,o1,o2)); break;\
+ } \
+}
+
+#define _ARITH_NOZERO(op,trg,o1,o2,err) \
+{ \
+ SQInteger tmask = type(o1)|type(o2); \
+ switch(tmask) { \
+ case OT_INTEGER: { SQInteger i2 = _integer(o2); if(i2 == 0) { Raise_Error(err); SQ_THROW(); } trg = _integer(o1) op i2; } break;\
+ case (OT_FLOAT|OT_INTEGER): \
+ case (OT_FLOAT): trg = tofloat(o1) op tofloat(o2); break;\
+ default: _GUARD(ARITH_OP((#op)[0],trg,o1,o2)); break;\
+ } \
+}
+
+bool SQVM::ARITH_OP(SQUnsignedInteger op,SQObjectPtr &trg,const SQObjectPtr &o1,const SQObjectPtr &o2)
+{
+ SQInteger tmask = type(o1)|type(o2);
+ switch(tmask) {
+ case OT_INTEGER:{
+ SQInteger res, i1 = _integer(o1), i2 = _integer(o2);
+ switch(op) {
+ case '+': res = i1 + i2; break;
+ case '-': res = i1 - i2; break;
+ case '/': if(i2 == 0) { Raise_Error(_SC("division by zero")); return false; }
+ res = i1 / i2;
+ break;
+ case '*': res = i1 * i2; break;
+ case '%': if(i2 == 0) { Raise_Error(_SC("modulo by zero")); return false; }
+ res = i1 % i2;
+ break;
+ default: res = 0xDEADBEEF;
+ }
+ trg = res; }
+ break;
+ case (OT_FLOAT|OT_INTEGER):
+ case (OT_FLOAT):{
+ SQFloat res, f1 = tofloat(o1), f2 = tofloat(o2);
+ switch(op) {
+ case '+': res = f1 + f2; break;
+ case '-': res = f1 - f2; break;
+ case '/': res = f1 / f2; break;
+ case '*': res = f1 * f2; break;
+ case '%': res = SQFloat(fmod((double)f1,(double)f2)); break;
+ default: res = 0x0f;
+ }
+ trg = res; }
+ break;
+ default:
+ if(op == '+' && (tmask & _RT_STRING)){
+ if(!StringCat(o1, o2, trg)) return false;
+ }
+ else if(!ArithMetaMethod(op,o1,o2,trg)) {
+ return false;
+ }
+ }
+ return true;
+}
+
+SQVM::SQVM(SQSharedState *ss)
+{
+ _sharedstate=ss;
+ _suspended = SQFalse;
+ _suspended_target = -1;
+ _suspended_root = SQFalse;
+ _suspended_traps = -1;
+ _foreignptr = NULL;
+ _nnativecalls = 0;
+ _nmetamethodscall = 0;
+ _lasterror.Null();
+ _errorhandler.Null();
+ _debughook = false;
+ _debughook_native = NULL;
+ _debughook_closure.Null();
+ _openouters = NULL;
+ ci = NULL;
+ INIT_CHAIN();ADD_TO_CHAIN(&_ss(this)->_gc_chain,this);
+}
+
+void SQVM::Finalize()
+{
+ if(_openouters) CloseOuters(&_stack._vals[0]);
+ _roottable.Null();
+ _lasterror.Null();
+ _errorhandler.Null();
+ _debughook = false;
+ _debughook_native = NULL;
+ _debughook_closure.Null();
+ temp_reg.Null();
+ _callstackdata.resize(0);
+ SQInteger size=_stack.size();
+ for(SQInteger i=0;i<size;i++)
+ _stack[i].Null();
+}
+
+SQVM::~SQVM()
+{
+ Finalize();
+ REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this);
+}
+
+bool SQVM::ArithMetaMethod(SQInteger op,const SQObjectPtr &o1,const SQObjectPtr &o2,SQObjectPtr &dest)
+{
+ SQMetaMethod mm;
+ switch(op){
+ case _SC('+'): mm=MT_ADD; break;
+ case _SC('-'): mm=MT_SUB; break;
+ case _SC('/'): mm=MT_DIV; break;
+ case _SC('*'): mm=MT_MUL; break;
+ case _SC('%'): mm=MT_MODULO; break;
+ default: mm = MT_ADD; assert(0); break; //shutup compiler
+ }
+ if(is_delegable(o1) && _delegable(o1)->_delegate) {
+
+ SQObjectPtr closure;
+ if(_delegable(o1)->GetMetaMethod(this, mm, closure)) {
+ Push(o1);Push(o2);
+ return CallMetaMethod(closure,mm,2,dest);
+ }
+ }
+ Raise_Error(_SC("arith op %c on between '%s' and '%s'"),op,GetTypeName(o1),GetTypeName(o2));
+ return false;
+}
+
+bool SQVM::NEG_OP(SQObjectPtr &trg,const SQObjectPtr &o)
+{
+
+ switch(type(o)) {
+ case OT_INTEGER:
+ trg = -_integer(o);
+ return true;
+ case OT_FLOAT:
+ trg = -_float(o);
+ return true;
+ case OT_TABLE:
+ case OT_USERDATA:
+ case OT_INSTANCE:
+ if(_delegable(o)->_delegate) {
+ SQObjectPtr closure;
+ if(_delegable(o)->GetMetaMethod(this, MT_UNM, closure)) {
+ Push(o);
+ if(!CallMetaMethod(closure, MT_UNM, 1, temp_reg)) return false;
+ _Swap(trg,temp_reg);
+ return true;
+
+ }
+ }
+ default:break; //shutup compiler
+ }
+ Raise_Error(_SC("attempt to negate a %s"), GetTypeName(o));
+ return false;
+}
+
+#define _RET_SUCCEED(exp) { result = (exp); return true; }
+bool SQVM::ObjCmp(const SQObjectPtr &o1,const SQObjectPtr &o2,SQInteger &result)
+{
+ SQObjectType t1 = type(o1), t2 = type(o2);
+ if(t1 == t2){
+ if(_rawval(o1)==_rawval(o2))_RET_SUCCEED(0);
+ SQObjectPtr res;
+ switch(t1){
+ case OT_STRING:
+ _RET_SUCCEED(scstrcmp(_stringval(o1),_stringval(o2)));
+ case OT_INTEGER:
+ _RET_SUCCEED(_integer(o1)-_integer(o2));
+ case OT_FLOAT:
+ _RET_SUCCEED((_float(o1)<_float(o2))?-1:1);
+ case OT_TABLE:
+ case OT_USERDATA:
+ case OT_INSTANCE:
+ if(_delegable(o1)->_delegate) {
+ SQObjectPtr closure;
+ if(_delegable(o1)->GetMetaMethod(this, MT_CMP, closure)) {
+ Push(o1);Push(o2);
+ if(!CallMetaMethod(closure,MT_CMP,2,res)) return false;
+ }
+ break;
+ }
+ //continues through (no break needed)
+ default:
+ _RET_SUCCEED( _userpointer(o1) < _userpointer(o2)?-1:1 );
+ }
+ if(type(res)!=OT_INTEGER) { Raise_CompareError(o1,o2); return false; }
+ _RET_SUCCEED(_integer(res));
+
+ }
+ else{
+ if(sq_isnumeric(o1) && sq_isnumeric(o2)){
+ if((t1==OT_INTEGER) && (t2==OT_FLOAT)) {
+ if( _integer(o1)==_float(o2) ) { _RET_SUCCEED(0); }
+ else if( _integer(o1)<_float(o2) ) { _RET_SUCCEED(-1); }
+ _RET_SUCCEED(1);
+ }
+ else{
+ if( _float(o1)==_integer(o2) ) { _RET_SUCCEED(0); }
+ else if( _float(o1)<_integer(o2) ) { _RET_SUCCEED(-1); }
+ _RET_SUCCEED(1);
+ }
+ }
+ else if(t1==OT_NULL) {_RET_SUCCEED(-1);}
+ else if(t2==OT_NULL) {_RET_SUCCEED(1);}
+ else { Raise_CompareError(o1,o2); return false; }
+
+ }
+ assert(0);
+ _RET_SUCCEED(0); //cannot happen
+}
+
+bool SQVM::CMP_OP(CmpOP op, const SQObjectPtr &o1,const SQObjectPtr &o2,SQObjectPtr &res)
+{
+ SQInteger r;
+ if(ObjCmp(o1,o2,r)) {
+ switch(op) {
+ case CMP_G: res = (r > 0); return true;
+ case CMP_GE: res = (r >= 0); return true;
+ case CMP_L: res = (r < 0); return true;
+ case CMP_LE: res = (r <= 0); return true;
+ case CMP_3W: res = r; return true;
+ }
+ assert(0);
+ }
+ return false;
+}
+
+bool SQVM::ToString(const SQObjectPtr &o,SQObjectPtr &res)
+{
+ switch(type(o)) {
+ case OT_STRING:
+ res = o;
+ return true;
+ case OT_FLOAT:
+ scsprintf(_sp(rsl(NUMBER_MAX_CHAR+1)),_SC("%g"),_float(o));
+ break;
+ case OT_INTEGER:
+ scsprintf(_sp(rsl(NUMBER_MAX_CHAR+1)),_PRINT_INT_FMT,_integer(o));
+ break;
+ case OT_BOOL:
+ scsprintf(_sp(rsl(6)),_integer(o)?_SC("true"):_SC("false"));
+ break;
+ case OT_TABLE:
+ case OT_USERDATA:
+ case OT_INSTANCE:
+ if(_delegable(o)->_delegate) {
+ SQObjectPtr closure;
+ if(_delegable(o)->GetMetaMethod(this, MT_TOSTRING, closure)) {
+ Push(o);
+ if(CallMetaMethod(closure,MT_TOSTRING,1,res)) {;
+ if(type(res) == OT_STRING)
+ return true;
+ }
+ else {
+ return false;
+ }
+ }
+ }
+ default:
+ scsprintf(_sp(rsl(sizeof(void*)+20)),_SC("(%s : 0x%p)"),GetTypeName(o),(void*)_rawval(o));
+ }
+ res = SQString::Create(_ss(this),_spval);
+ return true;
+}
+
+
+bool SQVM::StringCat(const SQObjectPtr &str,const SQObjectPtr &obj,SQObjectPtr &dest)
+{
+ SQObjectPtr a, b;
+ if(!ToString(str, a)) return false;
+ if(!ToString(obj, b)) return false;
+ SQInteger l = _string(a)->_len , ol = _string(b)->_len;
+ SQChar *s = _sp(rsl(l + ol + 1));
+ memcpy(s, _stringval(a), rsl(l));
+ memcpy(s + l, _stringval(b), rsl(ol));
+ dest = SQString::Create(_ss(this), _spval, l + ol);
+ return true;
+}
+
+bool SQVM::TypeOf(const SQObjectPtr &obj1,SQObjectPtr &dest)
+{
+ if(is_delegable(obj1) && _delegable(obj1)->_delegate) {
+ SQObjectPtr closure;
+ if(_delegable(obj1)->GetMetaMethod(this, MT_TYPEOF, closure)) {
+ Push(obj1);
+ return CallMetaMethod(closure,MT_TYPEOF,1,dest);
+ }
+ }
+ dest = SQString::Create(_ss(this),GetTypeName(obj1));
+ return true;
+}
+
+bool SQVM::Init(SQVM *friendvm, SQInteger stacksize)
+{
+ _stack.resize(stacksize);
+ _alloccallsstacksize = 4;
+ _callstackdata.resize(_alloccallsstacksize);
+ _callsstacksize = 0;
+ _callsstack = &_callstackdata[0];
+ _stackbase = 0;
+ _top = 0;
+ if(!friendvm)
+ _roottable = SQTable::Create(_ss(this), 0);
+ else {
+ _roottable = friendvm->_roottable;
+ _errorhandler = friendvm->_errorhandler;
+ _debughook = friendvm->_debughook;
+ _debughook_native = friendvm->_debughook_native;
+ _debughook_closure = friendvm->_debughook_closure;
+ }
+
+ sq_base_register(this);
+ return true;
+}
+
+
+bool SQVM::StartCall(SQClosure *closure,SQInteger target,SQInteger args,SQInteger stackbase,bool tailcall)
+{
+ SQFunctionProto *func = closure->_function;
+
+ SQInteger paramssize = func->_nparameters;
+ const SQInteger newtop = stackbase + func->_stacksize;
+ SQInteger nargs = args;
+ if(func->_varparams)
+ {
+ paramssize--;
+ if (nargs < paramssize) {
+ Raise_Error(_SC("wrong number of parameters"));
+ return false;
+ }
+
+ //dumpstack(stackbase);
+ SQInteger nvargs = nargs - paramssize;
+ SQArray *arr = SQArray::Create(_ss(this),nvargs);
+ SQInteger pbase = stackbase+paramssize;
+ for(SQInteger n = 0; n < nvargs; n++) {
+ arr->_values[n] = _stack._vals[pbase];
+ _stack._vals[pbase].Null();
+ pbase++;
+
+ }
+ _stack._vals[stackbase+paramssize] = arr;
+ //dumpstack(stackbase);
+ }
+ else if (paramssize != nargs) {
+ SQInteger ndef = func->_ndefaultparams;
+ SQInteger diff;
+ if(ndef && nargs < paramssize && (diff = paramssize - nargs) <= ndef) {
+ for(SQInteger n = ndef - diff; n < ndef; n++) {
+ _stack._vals[stackbase + (nargs++)] = closure->_defaultparams[n];
+ }
+ }
+ else {
+ Raise_Error(_SC("wrong number of parameters"));
+ return false;
+ }
+ }
+
+ if(closure->_env) {
+ _stack._vals[stackbase] = closure->_env->_obj;
+ }
+
+ if(!EnterFrame(stackbase, newtop, tailcall)) return false;
+
+ ci->_closure = closure;
+ ci->_literals = func->_literals;
+ ci->_ip = func->_instructions;
+ ci->_target = (SQInt32)target;
+
+ if (_debughook) {
+ CallDebugHook(_SC('c'));
+ }
+
+ if (closure->_function->_bgenerator) {
+ SQFunctionProto *f = closure->_function;
+ SQGenerator *gen = SQGenerator::Create(_ss(this), closure);
+ if(!gen->Yield(this,f->_stacksize))
+ return false;
+ SQObjectPtr temp;
+ Return(1, target, temp);
+ STK(target) = gen;
+ }
+
+
+ return true;
+}
+
+bool SQVM::Return(SQInteger _arg0, SQInteger _arg1, SQObjectPtr &retval)
+{
+ SQBool _isroot = ci->_root;
+ SQInteger callerbase = _stackbase - ci->_prevstkbase;
+
+ if (_debughook) {
+ for(SQInteger i=0; i<ci->_ncalls; i++) {
+ CallDebugHook(_SC('r'));
+ }
+ }
+
+ SQObjectPtr *dest;
+ if (_isroot) {
+ dest = &(retval);
+ } else if (ci->_target == -1) {
+ dest = NULL;
+ } else {
+ dest = &_stack._vals[callerbase + ci->_target];
+ }
+ if (dest) {
+ if(_arg0 != 0xFF) {
+ *dest = _stack._vals[_stackbase+_arg1];
+ }
+ else {
+ dest->Null();
+ }
+ //*dest = (_arg0 != 0xFF) ? _stack._vals[_stackbase+_arg1] : _null_;
+ }
+ LeaveFrame();
+ return _isroot ? true : false;
+}
+
+#define _RET_ON_FAIL(exp) { if(!exp) return false; }
+
+bool SQVM::PLOCAL_INC(SQInteger op,SQObjectPtr &target, SQObjectPtr &a, SQObjectPtr &incr)
+{
+ SQObjectPtr trg;
+ _RET_ON_FAIL(ARITH_OP( op , trg, a, incr));
+ target = a;
+ a = trg;
+ return true;
+}
+
+bool SQVM::DerefInc(SQInteger op,SQObjectPtr &target, SQObjectPtr &self, SQObjectPtr &key, SQObjectPtr &incr, bool postfix,SQInteger selfidx)
+{
+ SQObjectPtr tmp, tself = self, tkey = key;
+ if (!Get(tself, tkey, tmp, false, selfidx)) { return false; }
+ _RET_ON_FAIL(ARITH_OP( op , target, tmp, incr))
+ if (!Set(tself, tkey, target,selfidx)) { return false; }
+ if (postfix) target = tmp;
+ return true;
+}
+
+#define arg0 (_i_._arg0)
+#define sarg0 ((SQInteger)*((signed char *)&_i_._arg0))
+#define arg1 (_i_._arg1)
+#define sarg1 (*((SQInt32 *)&_i_._arg1))
+#define arg2 (_i_._arg2)
+#define arg3 (_i_._arg3)
+#define sarg3 ((SQInteger)*((signed char *)&_i_._arg3))
+
+SQRESULT SQVM::Suspend()
+{
+ if (_suspended)
+ return sq_throwerror(this, _SC("cannot suspend an already suspended vm"));
+ if (_nnativecalls!=2)
+ return sq_throwerror(this, _SC("cannot suspend through native calls/metamethods"));
+ return SQ_SUSPEND_FLAG;
+}
+
+
+#define _FINISH(howmuchtojump) {jump = howmuchtojump; return true; }
+bool SQVM::FOREACH_OP(SQObjectPtr &o1,SQObjectPtr &o2,SQObjectPtr
+&o3,SQObjectPtr &o4,SQInteger arg_2,int exitpos,int &jump)
+{
+ SQInteger nrefidx;
+ switch(type(o1)) {
+ case OT_TABLE:
+ if((nrefidx = _table(o1)->Next(false,o4, o2, o3)) == -1) _FINISH(exitpos);
+ o4 = (SQInteger)nrefidx; _FINISH(1);
+ case OT_ARRAY:
+ if((nrefidx = _array(o1)->Next(o4, o2, o3)) == -1) _FINISH(exitpos);
+ o4 = (SQInteger) nrefidx; _FINISH(1);
+ case OT_STRING:
+ if((nrefidx = _string(o1)->Next(o4, o2, o3)) == -1)_FINISH(exitpos);
+ o4 = (SQInteger)nrefidx; _FINISH(1);
+ case OT_CLASS:
+ if((nrefidx = _class(o1)->Next(o4, o2, o3)) == -1)_FINISH(exitpos);
+ o4 = (SQInteger)nrefidx; _FINISH(1);
+ case OT_USERDATA:
+ case OT_INSTANCE:
+ if(_delegable(o1)->_delegate) {
+ SQObjectPtr itr;
+ SQObjectPtr closure;
+ if(_delegable(o1)->GetMetaMethod(this, MT_NEXTI, closure)) {
+ Push(o1);
+ Push(o4);
+ if(CallMetaMethod(closure, MT_NEXTI, 2, itr)) {
+ o4 = o2 = itr;
+ if(type(itr) == OT_NULL) _FINISH(exitpos);
+ if(!Get(o1, itr, o3, false, DONT_FALL_BACK)) {
+ Raise_Error(_SC("_nexti returned an invalid idx")); // cloud be changed
+ return false;
+ }
+ _FINISH(1);
+ }
+ else {
+ return false;
+ }
+ }
+ Raise_Error(_SC("_nexti failed"));
+ return false;
+ }
+ break;
+ case OT_GENERATOR:
+ if(_generator(o1)->_state == SQGenerator::eDead) _FINISH(exitpos);
+ if(_generator(o1)->_state == SQGenerator::eSuspended) {
+ SQInteger idx = 0;
+ if(type(o4) == OT_INTEGER) {
+ idx = _integer(o4) + 1;
+ }
+ o2 = idx;
+ o4 = idx;
+ _generator(o1)->Resume(this, o3);
+ _FINISH(0);
+ }
+ default:
+ Raise_Error(_SC("cannot iterate %s"), GetTypeName(o1));
+ }
+ return false; //cannot be hit(just to avoid warnings)
+}
+
+#define COND_LITERAL (arg3!=0?ci->_literals[arg1]:STK(arg1))
+
+#define SQ_THROW() { goto exception_trap; }
+
+#define _GUARD(exp) { if(!exp) { SQ_THROW();} }
+
+bool SQVM::CLOSURE_OP(SQObjectPtr &target, SQFunctionProto *func)
+{
+ SQInteger nouters;
+ SQClosure *closure = SQClosure::Create(_ss(this), func);
+ if((nouters = func->_noutervalues)) {
+ for(SQInteger i = 0; i<nouters; i++) {
+ SQOuterVar &v = func->_outervalues[i];
+ switch(v._type){
+ case otLOCAL:
+ FindOuter(closure->_outervalues[i], &STK(_integer(v._src)));
+ break;
+ case otOUTER:
+ closure->_outervalues[i] = _closure(ci->_closure)->_outervalues[_integer(v._src)];
+ break;
+ }
+ }
+ }
+ SQInteger ndefparams;
+ if((ndefparams = func->_ndefaultparams)) {
+ for(SQInteger i = 0; i < ndefparams; i++) {
+ SQInteger spos = func->_defaultparams[i];
+ closure->_defaultparams[i] = _stack._vals[_stackbase + spos];
+ }
+ }
+ target = closure;
+ return true;
+
+}
+
+
+bool SQVM::CLASS_OP(SQObjectPtr &target,SQInteger baseclass,SQInteger attributes)
+{
+ SQClass *base = NULL;
+ SQObjectPtr attrs;
+ if(baseclass != -1) {
+ if(type(_stack._vals[_stackbase+baseclass]) != OT_CLASS) { Raise_Error(_SC("trying to inherit from a %s"),GetTypeName(_stack._vals[_stackbase+baseclass])); return false; }
+ base = _class(_stack._vals[_stackbase + baseclass]);
+ }
+ if(attributes != MAX_FUNC_STACKSIZE) {
+ attrs = _stack._vals[_stackbase+attributes];
+ }
+ target = SQClass::Create(_ss(this),base);
+ if(type(_class(target)->_metamethods[MT_INHERITED]) != OT_NULL) {
+ int nparams = 2;
+ SQObjectPtr ret;
+ Push(target); Push(attrs);
+ Call(_class(target)->_metamethods[MT_INHERITED],nparams,_top - nparams, ret, false);
+ Pop(nparams);
+ }
+ _class(target)->_attributes = attrs;
+ return true;
+}
+
+bool SQVM::IsEqual(const SQObjectPtr &o1,const SQObjectPtr &o2,bool &res)
+{
+ if(type(o1) == type(o2)) {
+ res = (_rawval(o1) == _rawval(o2));
+ }
+ else {
+ if(sq_isnumeric(o1) && sq_isnumeric(o2)) {
+ res = (tofloat(o1) == tofloat(o2));
+ }
+ else {
+ res = false;
+ }
+ }
+ return true;
+}
+
+bool SQVM::IsFalse(SQObjectPtr &o)
+{
+ if(((type(o) & SQOBJECT_CANBEFALSE)
+ && ( ((type(o) == OT_FLOAT) && (_float(o) == SQFloat(0.0))) ))
+#if !defined(SQUSEDOUBLE) || (defined(SQUSEDOUBLE) && defined(_SQ64))
+ || (_integer(o) == 0) ) //OT_NULL|OT_INTEGER|OT_BOOL
+#else
+ || (((type(o) != OT_FLOAT) && (_integer(o) == 0))) ) //OT_NULL|OT_INTEGER|OT_BOOL
+#endif
+ {
+ return true;
+ }
+ return false;
+}
+
+bool SQVM::Execute(SQObjectPtr &closure, SQInteger nargs, SQInteger stackbase,SQObjectPtr &outres, SQBool raiseerror,ExecutionType et)
+{
+ if ((_nnativecalls + 1) > MAX_NATIVE_CALLS) { Raise_Error(_SC("Native stack overflow")); return false; }
+ _nnativecalls++;
+ AutoDec ad(&_nnativecalls);
+ SQInteger traps = 0;
+ CallInfo *prevci = ci;
+
+ switch(et) {
+ case ET_CALL: {
+ temp_reg = closure;
+ if(!StartCall(_closure(temp_reg), _top - nargs, nargs, stackbase, false)) {
+ //call the handler if there are no calls in the stack, if not relies on the previous node
+ if(ci == NULL) CallErrorHandler(_lasterror);
+ return false;
+ }
+ if(ci == prevci) {
+ outres = STK(_top-nargs);
+ return true;
+ }
+ ci->_root = SQTrue;
+ }
+ break;
+ case ET_RESUME_GENERATOR: _generator(closure)->Resume(this, outres); ci->_root = SQTrue; traps += ci->_etraps; break;
+ case ET_RESUME_VM:
+ case ET_RESUME_THROW_VM:
+ traps = _suspended_traps;
+ ci->_root = _suspended_root;
+ _suspended = SQFalse;
+ if(et == ET_RESUME_THROW_VM) { SQ_THROW(); }
+ break;
+ }
+
+exception_restore:
+ //
+ {
+ for(;;)
+ {
+ const SQInstruction &_i_ = *ci->_ip++;
+ //dumpstack(_stackbase);
+ //scprintf("\n[%d] %s %d %d %d %d\n",ci->_ip-ci->_iv->_vals,g_InstrDesc[_i_.op].name,arg0,arg1,arg2,arg3);
+ switch(_i_.op)
+ {
+ case _OP_LINE: if (_debughook) CallDebugHook(_SC('l'),arg1); continue;
+ case _OP_LOAD: TARGET = ci->_literals[arg1]; continue;
+ case _OP_LOADINT:
+#ifndef _SQ64
+ TARGET = (SQInteger)arg1; continue;
+#else
+ TARGET = (SQInteger)((SQUnsignedInteger32)arg1); continue;
+#endif
+ case _OP_LOADFLOAT: TARGET = *((SQFloat *)&arg1); continue;
+ case _OP_DLOAD: TARGET = ci->_literals[arg1]; STK(arg2) = ci->_literals[arg3];continue;
+ case _OP_TAILCALL:{
+ SQObjectPtr &t = STK(arg1);
+ if (type(t) == OT_CLOSURE
+ && (!_closure(t)->_function->_bgenerator)){
+ SQObjectPtr clo = t;
+ if(_openouters) CloseOuters(&(_stack._vals[_stackbase]));
+ for (SQInteger i = 0; i < arg3; i++) STK(i) = STK(arg2 + i);
+ _GUARD(StartCall(_closure(clo), ci->_target, arg3, _stackbase, true));
+ continue;
+ }
+ }
+ case _OP_CALL: {
+ SQObjectPtr clo = STK(arg1);
+ switch (type(clo)) {
+ case OT_CLOSURE:
+ _GUARD(StartCall(_closure(clo), sarg0, arg3, _stackbase+arg2, false));
+ continue;
+ case OT_NATIVECLOSURE: {
+ bool suspend;
+ _GUARD(CallNative(_nativeclosure(clo), arg3, _stackbase+arg2, clo,suspend));
+ if(suspend){
+ _suspended = SQTrue;
+ _suspended_target = sarg0;
+ _suspended_root = ci->_root;
+ _suspended_traps = traps;
+ outres = clo;
+ return true;
+ }
+ if(sarg0 != -1) {
+ STK(arg0) = clo;
+ }
+ }
+ continue;
+ case OT_CLASS:{
+ SQObjectPtr inst;
+ _GUARD(CreateClassInstance(_class(clo),inst,clo));
+ if(sarg0 != -1) {
+ STK(arg0) = inst;
+ }
+ SQInteger stkbase;
+ switch(type(clo)) {
+ case OT_CLOSURE:
+ stkbase = _stackbase+arg2;
+ _stack._vals[stkbase] = inst;
+ _GUARD(StartCall(_closure(clo), -1, arg3, stkbase, false));
+ break;
+ case OT_NATIVECLOSURE:
+ bool suspend;
+ stkbase = _stackbase+arg2;
+ _stack._vals[stkbase] = inst;
+ _GUARD(CallNative(_nativeclosure(clo), arg3, stkbase, clo,suspend));
+ break;
+ default: break; //shutup GCC 4.x
+ }
+ }
+ break;
+ case OT_TABLE:
+ case OT_USERDATA:
+ case OT_INSTANCE:{
+ SQObjectPtr closure;
+ if(_delegable(clo)->_delegate && _delegable(clo)->GetMetaMethod(this,MT_CALL,closure)) {
+ Push(clo);
+ for (SQInteger i = 0; i < arg3; i++) Push(STK(arg2 + i));
+ if(!CallMetaMethod(closure, MT_CALL, arg3+1, clo)) SQ_THROW();
+ if(sarg0 != -1) {
+ STK(arg0) = clo;
+ }
+ break;
+ }
+
+ //Raise_Error(_SC("attempt to call '%s'"), GetTypeName(clo));
+ //SQ_THROW();
+ }
+ default:
+ Raise_Error(_SC("attempt to call '%s'"), GetTypeName(clo));
+ SQ_THROW();
+ }
+ }
+ continue;
+ case _OP_PREPCALL:
+ case _OP_PREPCALLK: {
+ SQObjectPtr &key = _i_.op == _OP_PREPCALLK?(ci->_literals)[arg1]:STK(arg1);
+ SQObjectPtr &o = STK(arg2);
+ if (!Get(o, key, temp_reg,false,arg2)) {
+ SQ_THROW();
+ }
+ STK(arg3) = o;
+ _Swap(TARGET,temp_reg);//TARGET = temp_reg;
+ }
+ continue;
+ case _OP_GETK:
+ if (!Get(STK(arg2), ci->_literals[arg1], temp_reg, false,arg2)) { SQ_THROW();}
+ _Swap(TARGET,temp_reg);//TARGET = temp_reg;
+ continue;
+ case _OP_MOVE: TARGET = STK(arg1); continue;
+ case _OP_NEWSLOT:
+ _GUARD(NewSlot(STK(arg1), STK(arg2), STK(arg3),false));
+ if(arg0 != 0xFF) TARGET = STK(arg3);
+ continue;
+ case _OP_DELETE: _GUARD(DeleteSlot(STK(arg1), STK(arg2), TARGET)); continue;
+ case _OP_SET:
+ if (!Set(STK(arg1), STK(arg2), STK(arg3),arg1)) { SQ_THROW(); }
+ if (arg0 != 0xFF) TARGET = STK(arg3);
+ continue;
+ case _OP_GET:
+ if (!Get(STK(arg1), STK(arg2), temp_reg, false,arg1)) { SQ_THROW(); }
+ _Swap(TARGET,temp_reg);//TARGET = temp_reg;
+ continue;
+ case _OP_EQ:{
+ bool res;
+ if(!IsEqual(STK(arg2),COND_LITERAL,res)) { SQ_THROW(); }
+ TARGET = res?true:false;
+ }continue;
+ case _OP_NE:{
+ bool res;
+ if(!IsEqual(STK(arg2),COND_LITERAL,res)) { SQ_THROW(); }
+ TARGET = (!res)?true:false;
+ } continue;
+ case _OP_ADD: _ARITH_(+,TARGET,STK(arg2),STK(arg1)); continue;
+ case _OP_SUB: _ARITH_(-,TARGET,STK(arg2),STK(arg1)); continue;
+ case _OP_MUL: _ARITH_(*,TARGET,STK(arg2),STK(arg1)); continue;
+ case _OP_DIV: _ARITH_NOZERO(/,TARGET,STK(arg2),STK(arg1),_SC("division by zero")); continue;
+ case _OP_MOD: ARITH_OP('%',TARGET,STK(arg2),STK(arg1)); continue;
+ case _OP_BITW: _GUARD(BW_OP( arg3,TARGET,STK(arg2),STK(arg1))); continue;
+ case _OP_RETURN:
+ if((ci)->_generator) {
+ (ci)->_generator->Kill();
+ }
+ if(Return(arg0, arg1, temp_reg)){
+ assert(traps==0);
+ //outres = temp_reg;
+ _Swap(outres,temp_reg);
+ return true;
+ }
+ continue;
+ case _OP_LOADNULLS:{ for(SQInt32 n=0; n < arg1; n++) STK(arg0+n).Null(); }continue;
+ case _OP_LOADROOT: TARGET = _roottable; continue;
+ case _OP_LOADBOOL: TARGET = arg1?true:false; continue;
+ case _OP_DMOVE: STK(arg0) = STK(arg1); STK(arg2) = STK(arg3); continue;
+ case _OP_JMP: ci->_ip += (sarg1); continue;
+ //case _OP_JNZ: if(!IsFalse(STK(arg0))) ci->_ip+=(sarg1); continue;
+ case _OP_JCMP:
+ _GUARD(CMP_OP((CmpOP)arg3,STK(arg2),STK(arg0),temp_reg));
+ if(IsFalse(temp_reg)) ci->_ip+=(sarg1);
+ continue;
+ case _OP_JZ: if(IsFalse(STK(arg0))) ci->_ip+=(sarg1); continue;
+ case _OP_GETOUTER: {
+ SQClosure *cur_cls = _closure(ci->_closure);
+ SQOuter *otr = _outer(cur_cls->_outervalues[arg1]);
+ TARGET = *(otr->_valptr);
+ }
+ continue;
+ case _OP_SETOUTER: {
+ SQClosure *cur_cls = _closure(ci->_closure);
+ SQOuter *otr = _outer(cur_cls->_outervalues[arg1]);
+ *(otr->_valptr) = STK(arg2);
+ if(arg0 != 0xFF) {
+ TARGET = STK(arg2);
+ }
+ }
+ continue;
+ case _OP_NEWOBJ:
+ switch(arg3) {
+ case NOT_TABLE: TARGET = SQTable::Create(_ss(this), arg1); continue;
+ case NOT_ARRAY: TARGET = SQArray::Create(_ss(this), 0); _array(TARGET)->Reserve(arg1); continue;
+ case NOT_CLASS: _GUARD(CLASS_OP(TARGET,arg1,arg2)); continue;
+ default: assert(0); continue;
+ }
+ case _OP_APPENDARRAY:
+ {
+ SQObject val;
+ val._unVal.raw = 0;
+ switch(arg2) {
+ case AAT_STACK:
+ val = STK(arg1); break;
+ case AAT_LITERAL:
+ val = ci->_literals[arg1]; break;
+ case AAT_INT:
+ val._type = OT_INTEGER;
+#ifndef _SQ64
+ val._unVal.nInteger = (SQInteger)arg1;
+#else
+ val._unVal.nInteger = (SQInteger)((SQUnsignedInteger32)arg1);
+#endif
+ break;
+ case AAT_FLOAT:
+ val._type = OT_FLOAT;
+ val._unVal.fFloat = *((SQFloat *)&arg1);
+ break;
+ case AAT_BOOL:
+ val._type = OT_BOOL;
+ val._unVal.nInteger = arg1;
+ break;
+ default: assert(0); break;
+
+ }
+ _array(STK(arg0))->Append(val); continue;
+ }
+ case _OP_COMPARITH: {
+ SQInteger selfidx = (((SQUnsignedInteger)arg1&0xFFFF0000)>>16);
+ _GUARD(DerefInc(arg3, TARGET, STK(selfidx), STK(arg2), STK(arg1&0x0000FFFF), false, selfidx));
+ }
+ continue;
+ case _OP_INC: {SQObjectPtr o(sarg3); _GUARD(DerefInc('+',TARGET, STK(arg1), STK(arg2), o, false, arg1));} continue;
+ case _OP_INCL: {
+ SQObjectPtr &a = STK(arg1);
+ if(type(a) == OT_INTEGER) {
+ a._unVal.nInteger = _integer(a) + sarg3;
+ }
+ else {
+ SQObjectPtr o(sarg3); //_GUARD(LOCAL_INC('+',TARGET, STK(arg1), o));
+ _ARITH_(+,a,a,o);
+ }
+ } continue;
+ case _OP_PINC: {SQObjectPtr o(sarg3); _GUARD(DerefInc('+',TARGET, STK(arg1), STK(arg2), o, true, arg1));} continue;
+ case _OP_PINCL: {
+ SQObjectPtr &a = STK(arg1);
+ if(type(a) == OT_INTEGER) {
+ TARGET = a;
+ a._unVal.nInteger = _integer(a) + sarg3;
+ }
+ else {
+ SQObjectPtr o(sarg3); _GUARD(PLOCAL_INC('+',TARGET, STK(arg1), o));
+ }
+
+ } continue;
+ case _OP_CMP: _GUARD(CMP_OP((CmpOP)arg3,STK(arg2),STK(arg1),TARGET)) continue;
+ case _OP_EXISTS: TARGET = Get(STK(arg1), STK(arg2), temp_reg, true,DONT_FALL_BACK)?true:false;continue;
+ case _OP_INSTANCEOF:
+ if(type(STK(arg1)) != OT_CLASS)
+ {Raise_Error(_SC("cannot apply instanceof between a %s and a %s"),GetTypeName(STK(arg1)),GetTypeName(STK(arg2))); SQ_THROW();}
+ TARGET = (type(STK(arg2)) == OT_INSTANCE) ? (_instance(STK(arg2))->InstanceOf(_class(STK(arg1)))?true:false) : false;
+ continue;
+ case _OP_AND:
+ if(IsFalse(STK(arg2))) {
+ TARGET = STK(arg2);
+ ci->_ip += (sarg1);
+ }
+ continue;
+ case _OP_OR:
+ if(!IsFalse(STK(arg2))) {
+ TARGET = STK(arg2);
+ ci->_ip += (sarg1);
+ }
+ continue;
+ case _OP_NEG: _GUARD(NEG_OP(TARGET,STK(arg1))); continue;
+ case _OP_NOT: TARGET = IsFalse(STK(arg1)); continue;
+ case _OP_BWNOT:
+ if(type(STK(arg1)) == OT_INTEGER) {
+ SQInteger t = _integer(STK(arg1));
+ TARGET = SQInteger(~t);
+ continue;
+ }
+ Raise_Error(_SC("attempt to perform a bitwise op on a %s"), GetTypeName(STK(arg1)));
+ SQ_THROW();
+ case _OP_CLOSURE: {
+ SQClosure *c = ci->_closure._unVal.pClosure;
+ SQFunctionProto *fp = c->_function;
+ if(!CLOSURE_OP(TARGET,fp->_functions[arg1]._unVal.pFunctionProto)) { SQ_THROW(); }
+ continue;
+ }
+ case _OP_YIELD:{
+ if(ci->_generator) {
+ if(sarg1 != MAX_FUNC_STACKSIZE) temp_reg = STK(arg1);
+ _GUARD(ci->_generator->Yield(this,arg2));
+ traps -= ci->_etraps;
+ if(sarg1 != MAX_FUNC_STACKSIZE) _Swap(STK(arg1),temp_reg);//STK(arg1) = temp_reg;
+ }
+ else { Raise_Error(_SC("trying to yield a '%s',only genenerator can be yielded"), GetTypeName(ci->_generator)); SQ_THROW();}
+ if(Return(arg0, arg1, temp_reg)){
+ assert(traps == 0);
+ outres = temp_reg;
+ return true;
+ }
+
+ }
+ continue;
+ case _OP_RESUME:
+ if(type(STK(arg1)) != OT_GENERATOR){ Raise_Error(_SC("trying to resume a '%s',only genenerator can be resumed"), GetTypeName(STK(arg1))); SQ_THROW();}
+ _GUARD(_generator(STK(arg1))->Resume(this, TARGET));
+ traps += ci->_etraps;
+ continue;
+ case _OP_FOREACH:{ int tojump;
+ _GUARD(FOREACH_OP(STK(arg0),STK(arg2),STK(arg2+1),STK(arg2+2),arg2,sarg1,tojump));
+ ci->_ip += tojump; }
+ continue;
+ case _OP_POSTFOREACH:
+ assert(type(STK(arg0)) == OT_GENERATOR);
+ if(_generator(STK(arg0))->_state == SQGenerator::eDead)
+ ci->_ip += (sarg1 - 1);
+ continue;
+ case _OP_CLONE: _GUARD(Clone(STK(arg1), TARGET)); continue;
+ case _OP_TYPEOF: _GUARD(TypeOf(STK(arg1), TARGET)) continue;
+ case _OP_PUSHTRAP:{
+ SQInstruction *_iv = _closure(ci->_closure)->_function->_instructions;
+ _etraps.push_back(SQExceptionTrap(_top,_stackbase, &_iv[(ci->_ip-_iv)+arg1], arg0)); traps++;
+ ci->_etraps++;
+ }
+ continue;
+ case _OP_POPTRAP: {
+ for(SQInteger i = 0; i < arg0; i++) {
+ _etraps.pop_back(); traps--;
+ ci->_etraps--;
+ }
+ }
+ continue;
+ case _OP_THROW: Raise_Error(TARGET); SQ_THROW(); continue;
+ case _OP_NEWSLOTA: {
+ bool bstatic = (arg0&NEW_SLOT_STATIC_FLAG)?true:false;
+ if(type(STK(arg1)) == OT_CLASS) {
+ if(type(_class(STK(arg1))->_metamethods[MT_NEWMEMBER]) != OT_NULL ) {
+ Push(STK(arg1)); Push(STK(arg2)); Push(STK(arg3));
+ Push((arg0&NEW_SLOT_ATTRIBUTES_FLAG) ? STK(arg2-1) : SQObjectPtr());
+ Push(bstatic);
+ int nparams = 5;
+ if(Call(_class(STK(arg1))->_metamethods[MT_NEWMEMBER], nparams, _top - nparams, temp_reg,SQFalse)) {
+ Pop(nparams);
+ continue;
+ }
+ else {
+ SQ_THROW();
+ }
+ }
+ }
+ _GUARD(NewSlot(STK(arg1), STK(arg2), STK(arg3),bstatic));
+ if((arg0&NEW_SLOT_ATTRIBUTES_FLAG)) {
+ _class(STK(arg1))->SetAttributes(STK(arg2),STK(arg2-1));
+ }
+ }
+ continue;
+ case _OP_GETBASE:{
+ SQClosure *clo = _closure(ci->_closure);
+ if(clo->_base) {
+ TARGET = clo->_base;
+ }
+ else {
+ TARGET.Null();
+ }
+ continue;
+ }
+ case _OP_CLOSE:
+ if(_openouters) CloseOuters(&(STK(arg1)));
+ continue;
+ }
+
+ }
+ }
+exception_trap:
+ {
+ SQObjectPtr currerror = _lasterror;
+// dumpstack(_stackbase);
+// SQInteger n = 0;
+ SQInteger last_top = _top;
+
+ if(_ss(this)->_notifyallexceptions || (!traps && raiseerror)) CallErrorHandler(currerror);
+
+ while( ci ) {
+ if(ci->_etraps > 0) {
+ SQExceptionTrap &et = _etraps.top();
+ ci->_ip = et._ip;
+ _top = et._stacksize;
+ _stackbase = et._stackbase;
+ _stack._vals[_stackbase + et._extarget] = currerror;
+ _etraps.pop_back(); traps--; ci->_etraps--;
+ while(last_top >= _top) _stack._vals[last_top--].Null();
+ goto exception_restore;
+ }
+ else if (_debughook) {
+ //notify debugger of a "return"
+ //even if it really an exception unwinding the stack
+ for(SQInteger i = 0; i < ci->_ncalls; i++) {
+ CallDebugHook(_SC('r'));
+ }
+ }
+ if(ci->_generator) ci->_generator->Kill();
+ bool mustbreak = ci && ci->_root;
+ LeaveFrame();
+ if(mustbreak) break;
+ }
+
+ _lasterror = currerror;
+ return false;
+ }
+ assert(0);
+}
+
+bool SQVM::CreateClassInstance(SQClass *theclass, SQObjectPtr &inst, SQObjectPtr &constructor)
+{
+ inst = theclass->CreateInstance();
+ if(!theclass->GetConstructor(constructor)) {
+ constructor.Null();
+ }
+ return true;
+}
+
+void SQVM::CallErrorHandler(SQObjectPtr &error)
+{
+ if(type(_errorhandler) != OT_NULL) {
+ SQObjectPtr out;
+ Push(_roottable); Push(error);
+ Call(_errorhandler, 2, _top-2, out,SQFalse);
+ Pop(2);
+ }
+}
+
+
+void SQVM::CallDebugHook(SQInteger type,SQInteger forcedline)
+{
+ _debughook = false;
+ SQFunctionProto *func=_closure(ci->_closure)->_function;
+ if(_debughook_native) {
+ const SQChar *src = type(func->_sourcename) == OT_STRING?_stringval(func->_sourcename):NULL;
+ const SQChar *fname = type(func->_name) == OT_STRING?_stringval(func->_name):NULL;
+ SQInteger line = forcedline?forcedline:func->GetLine(ci->_ip);
+ _debughook_native(this,type,src,line,fname);
+ }
+ else {
+ SQObjectPtr temp_reg;
+ SQInteger nparams=5;
+ Push(_roottable); Push(type); Push(func->_sourcename); Push(forcedline?forcedline:func->GetLine(ci->_ip)); Push(func->_name);
+ Call(_debughook_closure,nparams,_top-nparams,temp_reg,SQFalse);
+ Pop(nparams);
+ }
+ _debughook = true;
+}
+
+bool SQVM::CallNative(SQNativeClosure *nclosure, SQInteger nargs, SQInteger newbase, SQObjectPtr &retval, bool &suspend)
+{
+ SQInteger nparamscheck = nclosure->_nparamscheck;
+ SQInteger newtop = newbase + nargs + nclosure->_noutervalues;
+
+ if (_nnativecalls + 1 > MAX_NATIVE_CALLS) {
+ Raise_Error(_SC("Native stack overflow"));
+ return false;
+ }
+
+ if(nparamscheck && (((nparamscheck > 0) && (nparamscheck != nargs)) ||
+ ((nparamscheck < 0) && (nargs < (-nparamscheck)))))
+ {
+ Raise_Error(_SC("wrong number of parameters"));
+ return false;
+ }
+
+ SQInteger tcs;
+ SQIntVec &tc = nclosure->_typecheck;
+ if((tcs = tc.size())) {
+ for(SQInteger i = 0; i < nargs && i < tcs; i++) {
+ if((tc._vals[i] != -1) && !(type(_stack._vals[newbase+i]) & tc._vals[i])) {
+ Raise_ParamTypeError(i,tc._vals[i],type(_stack._vals[newbase+i]));
+ return false;
+ }
+ }
+ }
+
+ if(!EnterFrame(newbase, newtop, false)) return false;
+ ci->_closure = nclosure;
+
+ SQInteger outers = nclosure->_noutervalues;
+ for (SQInteger i = 0; i < outers; i++) {
+ _stack._vals[newbase+nargs+i] = nclosure->_outervalues[i];
+ }
+ if(nclosure->_env) {
+ _stack._vals[newbase] = nclosure->_env->_obj;
+ }
+
+ _nnativecalls++;
+ SQInteger ret = (nclosure->_function)(this);
+ _nnativecalls--;
+
+ suspend = false;
+ if (ret == SQ_SUSPEND_FLAG) {
+ suspend = true;
+ }
+ else if (ret < 0) {
+ LeaveFrame();
+ Raise_Error(_lasterror);
+ return false;
+ }
+ if(ret) {
+ retval = _stack._vals[_top-1];
+ }
+ else {
+ retval.Null();
+ }
+ //retval = ret ? _stack._vals[_top-1] : _null_;
+ LeaveFrame();
+ return true;
+}
+
+#define FALLBACK_OK 0
+#define FALLBACK_NO_MATCH 1
+#define FALLBACK_ERROR 2
+
+bool SQVM::Get(const SQObjectPtr &self,const SQObjectPtr &key,SQObjectPtr &dest,bool raw, SQInteger selfidx)
+{
+ switch(type(self)){
+ case OT_TABLE:
+ if(_table(self)->Get(key,dest))return true;
+ break;
+ case OT_ARRAY:
+ if(sq_isnumeric(key)) { if(_array(self)->Get(tointeger(key),dest)) { return true; } Raise_IdxError(key); return false; }
+ break;
+ case OT_INSTANCE:
+ if(_instance(self)->Get(key,dest)) return true;
+ break;
+ case OT_CLASS:
+ if(_class(self)->Get(key,dest)) return true;
+ break;
+ case OT_STRING:
+ if(sq_isnumeric(key)){
+ SQInteger n = tointeger(key);
+ if(abs((int)n) < _string(self)->_len) {
+ if(n < 0) n = _string(self)->_len - n;
+ dest = SQInteger(_stringval(self)[n]);
+ return true;
+ }
+ Raise_IdxError(key);
+ return false;
+ }
+ break;
+ default:break; //shut up compiler
+ }
+ if(!raw) {
+ switch(FallBackGet(self,key,dest)) {
+ case FALLBACK_OK: return true; //okie
+ case FALLBACK_NO_MATCH: break; //keep falling back
+ case FALLBACK_ERROR: return false; // the metamethod failed
+ }
+ if(InvokeDefaultDelegate(self,key,dest)) {
+ return true;
+ }
+ }
+//#ifdef ROOT_FALLBACK
+ if(selfidx == 0) {
+ if(_table(_roottable)->Get(key,dest)) return true;
+ }
+//#endif
+ Raise_IdxError(key);
+ return false;
+}
+
+bool SQVM::InvokeDefaultDelegate(const SQObjectPtr &self,const SQObjectPtr &key,SQObjectPtr &dest)
+{
+ SQTable *ddel = NULL;
+ switch(type(self)) {
+ case OT_CLASS: ddel = _class_ddel; break;
+ case OT_TABLE: ddel = _table_ddel; break;
+ case OT_ARRAY: ddel = _array_ddel; break;
+ case OT_STRING: ddel = _string_ddel; break;
+ case OT_INSTANCE: ddel = _instance_ddel; break;
+ case OT_INTEGER:case OT_FLOAT:case OT_BOOL: ddel = _number_ddel; break;
+ case OT_GENERATOR: ddel = _generator_ddel; break;
+ case OT_CLOSURE: case OT_NATIVECLOSURE: ddel = _closure_ddel; break;
+ case OT_THREAD: ddel = _thread_ddel; break;
+ case OT_WEAKREF: ddel = _weakref_ddel; break;
+ default: return false;
+ }
+ return ddel->Get(key,dest);
+}
+
+
+SQInteger SQVM::FallBackGet(const SQObjectPtr &self,const SQObjectPtr &key,SQObjectPtr &dest)
+{
+ switch(type(self)){
+ case OT_TABLE:
+ case OT_USERDATA:
+ //delegation
+ if(_delegable(self)->_delegate) {
+ if(Get(SQObjectPtr(_delegable(self)->_delegate),key,dest,false,DONT_FALL_BACK)) return FALLBACK_OK;
+ }
+ else {
+ return FALLBACK_NO_MATCH;
+ }
+ //go through
+ case OT_INSTANCE: {
+ SQObjectPtr closure;
+ if(_delegable(self)->GetMetaMethod(this, MT_GET, closure)) {
+ Push(self);Push(key);
+ _nmetamethodscall++;
+ AutoDec ad(&_nmetamethodscall);
+ if(Call(closure, 2, _top - 2, dest, SQFalse)) {
+ Pop(2);
+ return FALLBACK_OK;
+ }
+ else {
+ if(type(_lasterror) != OT_NULL) { //NULL means "clean failure" (not found)
+ //error
+ Pop(2);
+ return FALLBACK_ERROR;
+ }
+ }
+ }
+ }
+ break;
+ default: break;//shutup GCC 4.x
+ }
+ // no metamethod or no fallback type
+ return FALLBACK_NO_MATCH;
+}
+
+bool SQVM::Set(const SQObjectPtr &self,const SQObjectPtr &key,const SQObjectPtr &val,SQInteger selfidx)
+{
+ switch(type(self)){
+ case OT_TABLE:
+ if(_table(self)->Set(key,val)) return true;
+ break;
+ case OT_INSTANCE:
+ if(_instance(self)->Set(key,val)) return true;
+ break;
+ case OT_ARRAY:
+ if(!sq_isnumeric(key)) { Raise_Error(_SC("indexing %s with %s"),GetTypeName(self),GetTypeName(key)); return false; }
+ if(!_array(self)->Set(tointeger(key),val)) {
+ Raise_IdxError(key);
+ return false;
+ }
+ return true;
+ default:
+ Raise_Error(_SC("trying to set '%s'"),GetTypeName(self));
+ return false;
+ }
+
+ switch(FallBackSet(self,key,val)) {
+ case FALLBACK_OK: return true; //okie
+ case FALLBACK_NO_MATCH: break; //keep falling back
+ case FALLBACK_ERROR: return false; // the metamethod failed
+ }
+ if(selfidx == 0) {
+ if(_table(_roottable)->Set(key,val))
+ return true;
+ }
+ Raise_IdxError(key);
+ return false;
+}
+
+SQInteger SQVM::FallBackSet(const SQObjectPtr &self,const SQObjectPtr &key,const SQObjectPtr &val)
+{
+ switch(type(self)) {
+ case OT_TABLE:
+ if(_table(self)->_delegate) {
+ if(Set(_table(self)->_delegate,key,val,DONT_FALL_BACK)) return FALLBACK_OK;
+ }
+ //keps on going
+ case OT_INSTANCE:
+ case OT_USERDATA:{
+ SQObjectPtr closure;
+ SQObjectPtr t;
+ if(_delegable(self)->GetMetaMethod(this, MT_SET, closure)) {
+ Push(self);Push(key);Push(val);
+ _nmetamethodscall++;
+ AutoDec ad(&_nmetamethodscall);
+ if(Call(closure, 3, _top - 3, t, SQFalse)) {
+ Pop(3);
+ return FALLBACK_OK;
+ }
+ else {
+ if(type(_lasterror) != OT_NULL) { //NULL means "clean failure" (not found)
+ //error
+ Pop(3);
+ return FALLBACK_ERROR;
+ }
+ }
+ }
+ }
+ break;
+ default: break;//shutup GCC 4.x
+ }
+ // no metamethod or no fallback type
+ return FALLBACK_NO_MATCH;
+}
+
+bool SQVM::Clone(const SQObjectPtr &self,SQObjectPtr &target)
+{
+ SQObjectPtr temp_reg;
+ SQObjectPtr newobj;
+ switch(type(self)){
+ case OT_TABLE:
+ newobj = _table(self)->Clone();
+ goto cloned_mt;
+ case OT_INSTANCE: {
+ newobj = _instance(self)->Clone(_ss(this));
+cloned_mt:
+ SQObjectPtr closure;
+ if(_delegable(newobj)->_delegate && _delegable(newobj)->GetMetaMethod(this,MT_CLONED,closure)) {
+ Push(newobj);
+ Push(self);
+ if(!CallMetaMethod(closure,MT_CLONED,2,temp_reg))
+ return false;
+ }
+ }
+ target = newobj;
+ return true;
+ case OT_ARRAY:
+ target = _array(self)->Clone();
+ return true;
+ default:
+ Raise_Error(_SC("cloning a %s"), GetTypeName(self));
+ return false;
+ }
+}
+
+bool SQVM::NewSlot(const SQObjectPtr &self,const SQObjectPtr &key,const SQObjectPtr &val,bool bstatic)
+{
+ if(type(key) == OT_NULL) { Raise_Error(_SC("null cannot be used as index")); return false; }
+ switch(type(self)) {
+ case OT_TABLE: {
+ bool rawcall = true;
+ if(_table(self)->_delegate) {
+ SQObjectPtr res;
+ if(!_table(self)->Get(key,res)) {
+ SQObjectPtr closure;
+ if(_delegable(self)->_delegate && _delegable(self)->GetMetaMethod(this,MT_NEWSLOT,closure)) {
+ Push(self);Push(key);Push(val);
+ if(!CallMetaMethod(closure,MT_NEWSLOT,3,res)) {
+ return false;
+ }
+ rawcall = false;
+ }
+ else {
+ rawcall = true;
+ }
+ }
+ }
+ if(rawcall) _table(self)->NewSlot(key,val); //cannot fail
+
+ break;}
+ case OT_INSTANCE: {
+ SQObjectPtr res;
+ SQObjectPtr closure;
+ if(_delegable(self)->_delegate && _delegable(self)->GetMetaMethod(this,MT_NEWSLOT,closure)) {
+ Push(self);Push(key);Push(val);
+ if(!CallMetaMethod(closure,MT_NEWSLOT,3,res)) {
+ return false;
+ }
+ break;
+ }
+ Raise_Error(_SC("class instances do not support the new slot operator"));
+ return false;
+ break;}
+ case OT_CLASS:
+ if(!_class(self)->NewSlot(_ss(this),key,val,bstatic)) {
+ if(_class(self)->_locked) {
+ Raise_Error(_SC("trying to modify a class that has already been instantiated"));
+ return false;
+ }
+ else {
+ SQObjectPtr oval = PrintObjVal(key);
+ Raise_Error(_SC("the property '%s' already exists"),_stringval(oval));
+ return false;
+ }
+ }
+ break;
+ default:
+ Raise_Error(_SC("indexing %s with %s"),GetTypeName(self),GetTypeName(key));
+ return false;
+ break;
+ }
+ return true;
+}
+
+
+
+bool SQVM::DeleteSlot(const SQObjectPtr &self,const SQObjectPtr &key,SQObjectPtr &res)
+{
+ switch(type(self)) {
+ case OT_TABLE:
+ case OT_INSTANCE:
+ case OT_USERDATA: {
+ SQObjectPtr t;
+ //bool handled = false;
+ SQObjectPtr closure;
+ if(_delegable(self)->_delegate && _delegable(self)->GetMetaMethod(this,MT_DELSLOT,closure)) {
+ Push(self);Push(key);
+ return CallMetaMethod(closure,MT_DELSLOT,2,res);
+ }
+ else {
+ if(type(self) == OT_TABLE) {
+ if(_table(self)->Get(key,t)) {
+ _table(self)->Remove(key);
+ }
+ else {
+ Raise_IdxError((SQObject &)key);
+ return false;
+ }
+ }
+ else {
+ Raise_Error(_SC("cannot delete a slot from %s"),GetTypeName(self));
+ return false;
+ }
+ }
+ res = t;
+ }
+ break;
+ default:
+ Raise_Error(_SC("attempt to delete a slot from a %s"),GetTypeName(self));
+ return false;
+ }
+ return true;
+}
+
+bool SQVM::Call(SQObjectPtr &closure,SQInteger nparams,SQInteger stackbase,SQObjectPtr &outres,SQBool raiseerror)
+{
+#ifdef _DEBUG
+SQInteger prevstackbase = _stackbase;
+#endif
+ switch(type(closure)) {
+ case OT_CLOSURE:
+ return Execute(closure, nparams, stackbase, outres, raiseerror);
+ break;
+ case OT_NATIVECLOSURE:{
+ bool suspend;
+ return CallNative(_nativeclosure(closure), nparams, stackbase, outres,suspend);
+
+ }
+ break;
+ case OT_CLASS: {
+ SQObjectPtr constr;
+ SQObjectPtr temp;
+ CreateClassInstance(_class(closure),outres,constr);
+ if(type(constr) != OT_NULL) {
+ _stack[stackbase] = outres;
+ return Call(constr,nparams,stackbase,temp,raiseerror);
+ }
+ return true;
+ }
+ break;
+ default:
+ return false;
+ }
+#ifdef _DEBUG
+ if(!_suspended) {
+ assert(_stackbase == prevstackbase);
+ }
+#endif
+ return true;
+}
+
+bool SQVM::CallMetaMethod(SQObjectPtr &closure,SQMetaMethod mm,SQInteger nparams,SQObjectPtr &outres)
+{
+ //SQObjectPtr closure;
+
+ _nmetamethodscall++;
+ if(Call(closure, nparams, _top - nparams, outres, SQFalse)) {
+ _nmetamethodscall--;
+ Pop(nparams);
+ return true;
+ }
+ _nmetamethodscall--;
+ //}
+ Pop(nparams);
+ return false;
+}
+
+void SQVM::FindOuter(SQObjectPtr &target, SQObjectPtr *stackindex)
+{
+ SQOuter **pp = &_openouters;
+ SQOuter *p;
+ SQOuter *otr;
+
+ while ((p = *pp) != NULL && p->_valptr >= stackindex) {
+ if (p->_valptr == stackindex) {
+ target = SQObjectPtr(p);
+ return;
+ }
+ pp = &p->_next;
+ }
+ otr = SQOuter::Create(_ss(this), stackindex);
+ otr->_next = *pp;
+ otr->_idx = (stackindex - _stack._vals);
+ __ObjAddRef(otr);
+ *pp = otr;
+ target = SQObjectPtr(otr);
+}
+
+bool SQVM::EnterFrame(SQInteger newbase, SQInteger newtop, bool tailcall)
+{
+ if( !tailcall ) {
+ if( _callsstacksize == _alloccallsstacksize ) {
+ GrowCallStack();
+ }
+ ci = &_callsstack[_callsstacksize++];
+ ci->_prevstkbase = (SQInt32)(newbase - _stackbase);
+ ci->_prevtop = (SQInt32)(_top - _stackbase);
+ ci->_etraps = 0;
+ ci->_ncalls = 1;
+ ci->_generator = NULL;
+ ci->_root = SQFalse;
+ }
+ else {
+ ci->_ncalls++;
+ }
+
+ _stackbase = newbase;
+ _top = newtop;
+ if(newtop + MIN_STACK_OVERHEAD > (SQInteger)_stack.size()) {
+ if(_nmetamethodscall) {
+ Raise_Error(_SC("stack overflow, cannot resize stack while in a metamethod"));
+ return false;
+ }
+ _stack.resize(_stack.size() + (MIN_STACK_OVERHEAD << 2));
+ RelocateOuters();
+ }
+ return true;
+}
+
+void SQVM::LeaveFrame() {
+ SQInteger last_top = _top;
+ SQInteger last_stackbase = _stackbase;
+ SQInteger css = --_callsstacksize;
+
+ /* First clean out the call stack frame */
+ ci->_closure.Null();
+ _stackbase -= ci->_prevstkbase;
+ _top = _stackbase + ci->_prevtop;
+ ci = (css) ? &_callsstack[css-1] : NULL;
+
+ if(_openouters) CloseOuters(&(_stack._vals[last_stackbase]));
+ while (last_top >= _top) {
+ _stack._vals[last_top--].Null();
+ }
+}
+
+void SQVM::RelocateOuters()
+{
+ SQOuter *p = _openouters;
+ while (p) {
+ p->_valptr = _stack._vals + p->_idx;
+ p = p->_next;
+ }
+}
+
+void SQVM::CloseOuters(SQObjectPtr *stackindex) {
+ SQOuter *p;
+ while ((p = _openouters) != NULL && p->_valptr >= stackindex) {
+ p->_value = *(p->_valptr);
+ p->_valptr = &p->_value;
+ _openouters = p->_next;
+ __ObjRelease(p);
+ }
+}
+
+void SQVM::Remove(SQInteger n) {
+ n = (n >= 0)?n + _stackbase - 1:_top + n;
+ for(SQInteger i = n; i < _top; i++){
+ _stack[i] = _stack[i+1];
+ }
+ _stack[_top].Null();
+ _top--;
+}
+
+void SQVM::Pop() {
+ _stack[--_top].Null();
+}
+
+void SQVM::Pop(SQInteger n) {
+ for(SQInteger i = 0; i < n; i++){
+ _stack[--_top].Null();
+ }
+}
+
+void SQVM::PushNull() { _stack[_top++].Null(); }
+void SQVM::Push(const SQObjectPtr &o) { _stack[_top++] = o; }
+SQObjectPtr &SQVM::Top() { return _stack[_top-1]; }
+SQObjectPtr &SQVM::PopGet() { return _stack[--_top]; }
+SQObjectPtr &SQVM::GetUp(SQInteger n) { return _stack[_top+n]; }
+SQObjectPtr &SQVM::GetAt(SQInteger n) { return _stack[n]; }
+
+#ifdef _DEBUG_DUMP
+void SQVM::dumpstack(SQInteger stackbase,bool dumpall)
+{
+ SQInteger size=dumpall?_stack.size():_top;
+ SQInteger n=0;
+ scprintf(_SC("\n>>>>stack dump<<<<\n"));
+ CallInfo &ci=_callsstack[_callsstacksize-1];
+ scprintf(_SC("IP: %p\n"),ci._ip);
+ scprintf(_SC("prev stack base: %d\n"),ci._prevstkbase);
+ scprintf(_SC("prev top: %d\n"),ci._prevtop);
+ for(SQInteger i=0;i<size;i++){
+ SQObjectPtr &obj=_stack[i];
+ if(stackbase==i)scprintf(_SC(">"));else scprintf(_SC(" "));
+ scprintf(_SC("[%d]:"),n);
+ switch(type(obj)){
+ case OT_FLOAT: scprintf(_SC("FLOAT %.3f"),_float(obj));break;
+ case OT_INTEGER: scprintf(_SC("INTEGER %d"),_integer(obj));break;
+ case OT_BOOL: scprintf(_SC("BOOL %s"),_integer(obj)?"true":"false");break;
+ case OT_STRING: scprintf(_SC("STRING %s"),_stringval(obj));break;
+ case OT_NULL: scprintf(_SC("NULL")); break;
+ case OT_TABLE: scprintf(_SC("TABLE %p[%p]"),_table(obj),_table(obj)->_delegate);break;
+ case OT_ARRAY: scprintf(_SC("ARRAY %p"),_array(obj));break;
+ case OT_CLOSURE: scprintf(_SC("CLOSURE [%p]"),_closure(obj));break;
+ case OT_NATIVECLOSURE: scprintf(_SC("NATIVECLOSURE"));break;
+ case OT_USERDATA: scprintf(_SC("USERDATA %p[%p]"),_userdataval(obj),_userdata(obj)->_delegate);break;
+ case OT_GENERATOR: scprintf(_SC("GENERATOR %p"),_generator(obj));break;
+ case OT_THREAD: scprintf(_SC("THREAD [%p]"),_thread(obj));break;
+ case OT_USERPOINTER: scprintf(_SC("USERPOINTER %p"),_userpointer(obj));break;
+ case OT_CLASS: scprintf(_SC("CLASS %p"),_class(obj));break;
+ case OT_INSTANCE: scprintf(_SC("INSTANCE %p"),_instance(obj));break;
+ case OT_WEAKREF: scprintf(_SC("WEAKERF %p"),_weakref(obj));break;
+ default:
+ assert(0);
+ break;
+ };
+ scprintf(_SC("\n"));
+ ++n;
+ }
+}
+
+
+
+#endif
diff --git a/squirrel_3_0_1_stable/squirrel/sqvm.h b/squirrel_3_0_1_stable/squirrel/sqvm.h new file mode 100644 index 000000000..397dcd9c1 --- /dev/null +++ b/squirrel_3_0_1_stable/squirrel/sqvm.h @@ -0,0 +1,208 @@ +/* see copyright notice in squirrel.h */
+#ifndef _SQVM_H_
+#define _SQVM_H_
+
+#include "sqopcodes.h"
+#include "sqobject.h"
+#define MAX_NATIVE_CALLS 100
+#define MIN_STACK_OVERHEAD 15
+
+#define SQ_SUSPEND_FLAG -666
+#define DONT_FALL_BACK 666
+//base lib
+void sq_base_register(HSQUIRRELVM v);
+
+struct SQExceptionTrap{
+ SQExceptionTrap() {}
+ SQExceptionTrap(SQInteger ss, SQInteger stackbase,SQInstruction *ip, SQInteger ex_target){ _stacksize = ss; _stackbase = stackbase; _ip = ip; _extarget = ex_target;}
+ SQExceptionTrap(const SQExceptionTrap &et) { (*this) = et; }
+ SQInteger _stackbase;
+ SQInteger _stacksize;
+ SQInstruction *_ip;
+ SQInteger _extarget;
+};
+
+#define _INLINE
+
+#define STK(a) _stack._vals[_stackbase+(a)]
+#define TARGET _stack._vals[_stackbase+arg0]
+
+typedef sqvector<SQExceptionTrap> ExceptionsTraps;
+
+struct SQVM : public CHAINABLE_OBJ
+{
+ struct CallInfo{
+ //CallInfo() { _generator = NULL;}
+ SQInstruction *_ip;
+ SQObjectPtr *_literals;
+ SQObjectPtr _closure;
+ SQGenerator *_generator;
+ SQInt32 _etraps;
+ SQInt32 _prevstkbase;
+ SQInt32 _prevtop;
+ SQInt32 _target;
+ SQInt32 _ncalls;
+ SQBool _root;
+ };
+
+typedef sqvector<CallInfo> CallInfoVec;
+public:
+ void DebugHookProxy(SQInteger type, const SQChar * sourcename, SQInteger line, const SQChar * funcname);
+ static void _DebugHookProxy(HSQUIRRELVM v, SQInteger type, const SQChar * sourcename, SQInteger line, const SQChar * funcname);
+ enum ExecutionType { ET_CALL, ET_RESUME_GENERATOR, ET_RESUME_VM,ET_RESUME_THROW_VM };
+ SQVM(SQSharedState *ss);
+ ~SQVM();
+ bool Init(SQVM *friendvm, SQInteger stacksize);
+ bool Execute(SQObjectPtr &func, SQInteger nargs, SQInteger stackbase, SQObjectPtr &outres, SQBool raiseerror, ExecutionType et = ET_CALL);
+ //starts a native call return when the NATIVE closure returns
+ bool CallNative(SQNativeClosure *nclosure, SQInteger nargs, SQInteger newbase, SQObjectPtr &retval,bool &suspend);
+ //starts a SQUIRREL call in the same "Execution loop"
+ bool StartCall(SQClosure *closure, SQInteger target, SQInteger nargs, SQInteger stackbase, bool tailcall);
+ bool CreateClassInstance(SQClass *theclass, SQObjectPtr &inst, SQObjectPtr &constructor);
+ //call a generic closure pure SQUIRREL or NATIVE
+ bool Call(SQObjectPtr &closure, SQInteger nparams, SQInteger stackbase, SQObjectPtr &outres,SQBool raiseerror);
+ SQRESULT Suspend();
+
+ void CallDebugHook(SQInteger type,SQInteger forcedline=0);
+ void CallErrorHandler(SQObjectPtr &e);
+ bool Get(const SQObjectPtr &self, const SQObjectPtr &key, SQObjectPtr &dest, bool raw, SQInteger selfidx);
+ SQInteger FallBackGet(const SQObjectPtr &self,const SQObjectPtr &key,SQObjectPtr &dest);
+ bool InvokeDefaultDelegate(const SQObjectPtr &self,const SQObjectPtr &key,SQObjectPtr &dest);
+ bool Set(const SQObjectPtr &self, const SQObjectPtr &key, const SQObjectPtr &val, SQInteger selfidx);
+ SQInteger FallBackSet(const SQObjectPtr &self,const SQObjectPtr &key,const SQObjectPtr &val);
+ bool NewSlot(const SQObjectPtr &self, const SQObjectPtr &key, const SQObjectPtr &val,bool bstatic);
+ bool DeleteSlot(const SQObjectPtr &self, const SQObjectPtr &key, SQObjectPtr &res);
+ bool Clone(const SQObjectPtr &self, SQObjectPtr &target);
+ bool ObjCmp(const SQObjectPtr &o1, const SQObjectPtr &o2,SQInteger &res);
+ bool StringCat(const SQObjectPtr &str, const SQObjectPtr &obj, SQObjectPtr &dest);
+ static bool IsEqual(const SQObjectPtr &o1,const SQObjectPtr &o2,bool &res);
+ bool ToString(const SQObjectPtr &o,SQObjectPtr &res);
+ SQString *PrintObjVal(const SQObjectPtr &o);
+
+
+ void Raise_Error(const SQChar *s, ...);
+ void Raise_Error(const SQObjectPtr &desc);
+ void Raise_IdxError(const SQObjectPtr &o);
+ void Raise_CompareError(const SQObject &o1, const SQObject &o2);
+ void Raise_ParamTypeError(SQInteger nparam,SQInteger typemask,SQInteger type);
+
+ void FindOuter(SQObjectPtr &target, SQObjectPtr *stackindex);
+ void RelocateOuters();
+ void CloseOuters(SQObjectPtr *stackindex);
+
+ bool TypeOf(const SQObjectPtr &obj1, SQObjectPtr &dest);
+ bool CallMetaMethod(SQObjectPtr &closure, SQMetaMethod mm, SQInteger nparams, SQObjectPtr &outres);
+ bool ArithMetaMethod(SQInteger op, const SQObjectPtr &o1, const SQObjectPtr &o2, SQObjectPtr &dest);
+ bool Return(SQInteger _arg0, SQInteger _arg1, SQObjectPtr &retval);
+ //new stuff
+ _INLINE bool ARITH_OP(SQUnsignedInteger op,SQObjectPtr &trg,const SQObjectPtr &o1,const SQObjectPtr &o2);
+ _INLINE bool BW_OP(SQUnsignedInteger op,SQObjectPtr &trg,const SQObjectPtr &o1,const SQObjectPtr &o2);
+ _INLINE bool NEG_OP(SQObjectPtr &trg,const SQObjectPtr &o1);
+ _INLINE bool CMP_OP(CmpOP op, const SQObjectPtr &o1,const SQObjectPtr &o2,SQObjectPtr &res);
+ bool CLOSURE_OP(SQObjectPtr &target, SQFunctionProto *func);
+ bool CLASS_OP(SQObjectPtr &target,SQInteger base,SQInteger attrs);
+ //return true if the loop is finished
+ bool FOREACH_OP(SQObjectPtr &o1,SQObjectPtr &o2,SQObjectPtr &o3,SQObjectPtr &o4,SQInteger arg_2,int exitpos,int &jump);
+ //_INLINE bool LOCAL_INC(SQInteger op,SQObjectPtr &target, SQObjectPtr &a, SQObjectPtr &incr);
+ _INLINE bool PLOCAL_INC(SQInteger op,SQObjectPtr &target, SQObjectPtr &a, SQObjectPtr &incr);
+ _INLINE bool DerefInc(SQInteger op,SQObjectPtr &target, SQObjectPtr &self, SQObjectPtr &key, SQObjectPtr &incr, bool postfix,SQInteger arg0);
+#ifdef _DEBUG_DUMP
+ void dumpstack(SQInteger stackbase=-1, bool dumpall = false);
+#endif
+
+#ifndef NO_GARBAGE_COLLECTOR
+ void Mark(SQCollectable **chain);
+ SQObjectType GetType() {return OT_THREAD;}
+#endif
+ void Finalize();
+ void GrowCallStack() {
+ SQInteger newsize = _alloccallsstacksize*2;
+ _callstackdata.resize(newsize);
+ _callsstack = &_callstackdata[0];
+ _alloccallsstacksize = newsize;
+ }
+ bool EnterFrame(SQInteger newbase, SQInteger newtop, bool tailcall);
+ void LeaveFrame();
+ void Release(){ sq_delete(this,SQVM); }
+////////////////////////////////////////////////////////////////////////////
+ //stack functions for the api
+ void Remove(SQInteger n);
+
+ static bool IsFalse(SQObjectPtr &o);
+
+ void Pop();
+ void Pop(SQInteger n);
+ void Push(const SQObjectPtr &o);
+ void PushNull();
+ SQObjectPtr &Top();
+ SQObjectPtr &PopGet();
+ SQObjectPtr &GetUp(SQInteger n);
+ SQObjectPtr &GetAt(SQInteger n);
+
+ SQObjectPtrVec _stack;
+
+ SQInteger _top;
+ SQInteger _stackbase;
+ SQOuter *_openouters;
+ SQObjectPtr _roottable;
+ SQObjectPtr _lasterror;
+ SQObjectPtr _errorhandler;
+
+ bool _debughook;
+ SQDEBUGHOOK _debughook_native;
+ SQObjectPtr _debughook_closure;
+
+ SQObjectPtr temp_reg;
+
+
+ CallInfo* _callsstack;
+ SQInteger _callsstacksize;
+ SQInteger _alloccallsstacksize;
+ sqvector<CallInfo> _callstackdata;
+
+ ExceptionsTraps _etraps;
+ CallInfo *ci;
+ void *_foreignptr;
+ //VMs sharing the same state
+ SQSharedState *_sharedstate;
+ SQInteger _nnativecalls;
+ SQInteger _nmetamethodscall;
+ //suspend infos
+ SQBool _suspended;
+ SQBool _suspended_root;
+ SQInteger _suspended_target;
+ SQInteger _suspended_traps;
+};
+
+struct AutoDec{
+ AutoDec(SQInteger *n) { _n = n; }
+ ~AutoDec() { (*_n)--; }
+ SQInteger *_n;
+};
+
+inline SQObjectPtr &stack_get(HSQUIRRELVM v,SQInteger idx){return ((idx>=0)?(v->GetAt(idx+v->_stackbase-1)):(v->GetUp(idx)));}
+
+#define _ss(_vm_) (_vm_)->_sharedstate
+
+#ifndef NO_GARBAGE_COLLECTOR
+#define _opt_ss(_vm_) (_vm_)->_sharedstate
+#else
+#define _opt_ss(_vm_) NULL
+#endif
+
+#define PUSH_CALLINFO(v,nci){ \
+ SQInteger css = v->_callsstacksize; \
+ if(css == v->_alloccallsstacksize) { \
+ v->GrowCallStack(); \
+ } \
+ v->ci = &v->_callsstack[css]; \
+ *(v->ci) = nci; \
+ v->_callsstacksize++; \
+}
+
+#define POP_CALLINFO(v){ \
+ SQInteger css = --v->_callsstacksize; \
+ v->ci->_closure.Null(); \
+ v->ci = css?&v->_callsstack[css-1]:NULL; \
+}
+#endif //_SQVM_H_
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