indexing description: "AST representation of a `ensure then' structure." date: "$Date$" revision: "$Revision$" class ENSURE_THEN_AS inherit ENSURE_AS redefine process, is_then end feature -- Visitor process (v: AST_VISITOR) is -- process current element. do v.process_ensure_then_as (Current) end feature -- Properties is_then: BOOLEAN is True -- Is the assertion list an "ensure then" part ? end -- class ENSURE_THEN_AS