R: Internal Class representing Empty Methods List

EmptyMethodsList-class {methods} | R Documentation

## Internal Class representing Empty Methods List

### Description

Objects from class `"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"

### Slots

`argument`:

  Object of class `"name"` the argument names being selected on.

`sublist`:

  Object of class `"list"` (unused, and perhaps to be dropped in a later version.)

### Methods

No methods defined with class `"EmptyMethodsList"` in the signature.

### See Also

Function `MethodsListSelect` (deprecated since R version 3.2.0) uses the objects; class `MethodsList` is formally defunct since R 3.2.0.

[Package methods version 3.5.1 Index]