diff options
Diffstat (limited to 'squirrel_3_0_1_stable/squirrel/sqobject.h')
| -rw-r--r-- | squirrel_3_0_1_stable/squirrel/sqobject.h | 354 |
1 files changed, 354 insertions, 0 deletions
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_
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