sgsHandle [class]

template< class T > class sgsHandle

This is the class used for handling SGS_OBJECT classes.

Variables

• sgs_VarObj* object - the pointer to object with interface equal to T::_sgs_interface or NULL
• SGS_CTX (sgs_Context* C) - associated context

Constructors

• sgsHandle() - initializes a NULL handle
• sgsHandle( const sgsHandle& h ) - initializes a handle from another handle
• sgsHandle( sgs_Context* c, sgs_VarObj* obj ) - initializes a handle from object pointer if it has the right interface, otherwise handle is initialized to NULL
• sgsHandle( sgs_Context* c, sgs_StkIdx item ) - initializes a handle from stack index if it has the right interface, otherwise handle is initialized to NULL
• sgsHandle( sgs_Context* c, sgs_Variable* var ) - initializes a handle from variable pointer if it has the right interface, otherwise handle is initialized to NULL
• explicit sgsHandle( T* obj ) - initializes a handle from class (SGS_OBJECT) instance pointer

Methods

• void gcmark() - mark the object in handle as accessible (using sgs_ObjGCMark)
• void push( sgs_Context* c = NULL ) - push the handle on the stack as object/null
• bool not_null() - returns if object handle points to an instance
• sgsVariable get_variable() - returns this handle as sgsVariable
• void _acquire() - increment reference count on variable
• void _release() - decrement reference count on variable, remove it from the class

Operators

• const sgsHandle& operator = ( const sgsHandle& h ) - handle assignment
• operator T*(), operator const T*() const - implicit conversion to valid T* or NULL
• T* operator -> (), const T* operator -> () const - object access
• bool operator <, bool operator ==, bool operator != - comparison operators