unused_formals: Is every function argument used in its body?

In HughParsonage/formalCoverage: Tests Functions Source Code for Unused Arguments

Description

Is every function argument used in its body?

Usage

unused_formals(fn, ns = NULL)

Arguments

fn	A function.
ns	If fn is a character vector, the namespace to which fn belongs.

Value

The arguments of fn that are not used or if all are indeed used NULL invisibly.

Examples

add3 <- function(x, y, z = 0) {
  x + y
}

unused_formals(add3)

HughParsonage/formalCoverage documentation built on May 14, 2019, 8:19 a.m.