diff options
Diffstat (limited to 'squirrel_3_0_1_stable/squirrel/sqclosure.h')
| -rw-r--r-- | squirrel_3_0_1_stable/squirrel/sqclosure.h | 193 |
1 files changed, 193 insertions, 0 deletions
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_
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