The R Project SVN R

\name{EmptyMethodsList-class}
\docType{class}
\alias{EmptyMethodsList-class}
\title{Internal Class representing Empty Methods List }
\description{Objects from class \code{"EmptyMethodsList"} are generated during method
  selection to indicate failed search (forcing backtracking).  Other
  classes described here are used internally in method dispatch. All
  these are for internal use.}
\usage{
## class described below
"EmptyMethodsList"

### Other, virtual classes used in method dispatch
"OptionalMethods"
"PossibleMethod"

}
\section{Slots}{
  \describe{
    \item{\code{argument}:}{Object of class \code{"name"} the argument
        names being selected on.}
    \item{\code{sublist}:}{Object of class \code{"list"} (unused, and
        perhaps to be dropped in a later version.) }
  }
}

\section{Methods}{
No methods defined with class "EmptyMethodsList" in the signature.
}
\seealso{ Function \code{\link{MethodsListSelect}} uses the objects;
 see \code{\link{MethodsList-class}} for the non-empty methods list objects. }

\keyword{classes}
\keyword{internal}