Source code: engine/GenericInstruction.java

   
   /* **********************************
    File:GenericInstruction.java
    Author: Alec(panovici@elcom.pub.ro)
    Created on 12.02.1999 02:42:26
    Comments: Part of the vIDE Project
               Copyright 1999 the vIDE Team.
   ***********************************/
   
  package engine;
  
  /**
   * This is a placeholder for a runtime generated action
   * (such as delayed value updates in monitors). An
   * Executable can be plugged into a GenericInstruction
   * so it can be scheduled at a later time.
   */
  class GenericInstruction extends Instruction{
    
    Executable target;
    int state;
    
    public GenericInstruction (Executable target) {
      this.target = target;
    }
    
    public String toString(){
      return target.toString();
    }
    
    public void execute ()
      throws InterpretTimeException, SimulationStoppedException
    {
      target.execute();
      state = 1;
      /*    if (next != null) next.execute();
            next = null;*/
    }
  
    public Instruction next() {
      if (state == 1) {
        state = 0;
        Instruction tmp = next;
        next = null;
        return tmp;
      }
      return next;
    }
  }