utils (version 3.4.0)

isS3stdGeneric: Check if a function acts as an S3 generic

Description

Determines whether f acts as a standard S3-style generic function.

Usage

isS3stdGeneric(f)

Arguments

f

A function object

Value

If f is an S3 generic, a logical vector containing TRUE with the name of the S3 generic (the string passed to UseMethod). Otherwise, FALSE (unnamed).

Details

A closure is considered a standard S3 generic if the first expression in its body calls UseMethod. Functions which perform operations before calling UseMethod will not be considered “standard” S3 generics.