NAME

       nx::next - Skip to the next most specific method implementation

SYNOPSIS

       next ?arguments?

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DESCRIPTION

       next ?arguments?
              This  command is invoked inside a method body to call the next most specific method implementation
              in the list of available methods. This list of  available  methods  is  specific  to  the  current
              method-call  context. This context is set by the usage context of nx::next (method combination vs.
              method-call interception; see below). The optional arguments are the argument values to be  passed
              into the next most specific method implementation. If omitted, the arguments of the current method
              call  are  automatically  forwarded.  To call the next most specific method implementation without
              arguments (or to suppress argument forwarding), arguments must be set to an empty string. To  pass
              an  empty  string  as  a  (single)  argument  value, protect it as a list. The result of a call to
              nx::next is the result of the next most specific method implementation.   If  there  are  no  more
              further  applicable  methods,  the  result  of  nx::next  will depend on its usage context: method
              combination or method-call interception.  If  nx::next  is  used  in  a  method  body  for  method
              combination,  the  result  will  be  an  empty string. If nx::next is used in the body of a filter
              method for method-call interception, the result will be an error.

              When executing a method call, the NX dispatch mechanism  computes  a  list  of  applicable  method
              implementations  for  the method name requested from a given object receiving the call; in support
              of method combination and method-call interception.

              For method combination, the computed list contains any object-local method implementation and  any
              method  implementations  inherited by the object from the classes in its precedence list. Examples
              are overloading method implementations in the class hierarchy of the object, as well as from mixin
              classes of the object. For method-call interception, the computed  list  contains  the  applicable
              filter  methods,  again  ordered by their definition order according to the precedence list of the
              called object.

              To retrieve the next most specific method implementation to be invoked  by  nx::current  from  the
              internally computed list, if any, use nx::current.

COPYRIGHT

       Copyright (c) 2014-16 Stefan Sobernig <stefan.sobernig@wu.ac.at>, Gustaf Neumann <gustaf.neumann@wu.ac.at>

next                                                  2.4.0                                        nx::next(3nx)