-- File:	BOP_EmptyBuilder.cdl
-- Created:	Fri Feb  1 12:52:38 2002
-- Author:	Peter KURNEV
--		<pkv@irinox>
---Copyright:	 Matra Datavision 2002


class EmptyBuilder from BOP inherits Builder from BOP

	---Purpose: 
    	---        Performs Boolean Operation (BO) for shapes   
	---        in cases when one of arguments(or both) is(are) empty 
	---
uses
    DSFiller  from BOPTools, 
    PDSFiller from BOPTools, 
    ListOfShape from TopTools 
    
--raises

is 
    Create   
    	returns  EmptyBuilder from BOP; 
    	---Purpose:  
    	--- Empty constructor; 
    	---
    Do  (me:out) 
    	is  redefined; 	 
    	---Purpose:  
    	--- see base classes, please
    	---
    DoWithFiller      (me:out; 
    	     aDSF: DSFiller from BOPTools) 
    	is  redefined; 
    	---Purpose: 
    	--- see base classes, please
    	---
    Destroy (me: in out) 
    	is redefined; 
    	---C++: alias "Standard_EXPORT virtual ~BOP_EmptyBuilder(){Destroy();}"  
    	---Purpose: 
    	--- Destructor
    	---
    BuildResult (me:out) 
	is  redefined;	  
    	---Purpose: 
    	--- see base classes, please
    	---
    
--fields
  
end EmptyBuilder;