ParseTrigger.hpp

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/******************************************************************************/
/* REXX Kernel                                               ParseTrigger.hpp */
/*                                                                            */
/* Primitive PARSE instruction parsing trigger Class Definitions              */
/*                                                                            */
/******************************************************************************/
#ifndef Included_RexxInstructionTrigger
#define Included_RexxInstructionTrigger
 
#define TRIGGER_END      1
#define TRIGGER_PLUS     2
#define TRIGGER_MINUS    3
#define TRIGGER_ABSOLUTE 4
#define TRIGGER_STRING   5
#define TRIGGER_MIXED    6
#define TRIGGER_PLUS_LENGTH 7
#define TRIGGER_MINUS_LENGTH 8
 
class RexxTarget;
class RexxVariableBase;
 
class RexxTrigger : public RexxInternalObject {
 public:
  void        *operator new(size_t, int);
  inline void *operator new(size_t size, void *ptr) {return ptr;};
  inline void  operator delete(void *) { }
  inline void  operator delete(void *, int) { }
  inline void  operator delete(void *, void *) { ; }
 
  RexxTrigger(int, RexxObject *, size_t, RexxQueue *);
  inline RexxTrigger(RESTORETYPE restoreType) { ; };
  stringsize_t integerTrigger(RexxObject *);
  RexxString *stringTrigger(RexxObject *);
  void        parse(RexxActivation *, RexxExpressionStack *, RexxTarget *);
  void        live(size_t);
  void        liveGeneral(int reason);
  void        flatten(RexxEnvelope *);
  inline int  getType()     { return this->triggerType; }
  inline void setType(int v) { this->triggerType = v; }
 
protected:
 
  int         triggerType;             // type if trigger
  size_t      variableCount;           /* count of variables                */
  RexxObject *value;                   /* value associated with trigger     */
  RexxVariableBase *variables[1];      /* list of variables to assign       */
};
#endif