as_box: Convert object to a box

In hadley/rlang: Functions for Base Types and Core R and 'Tidyverse' Features

Convert object to a box

Description

• as_box() boxes its input only if it is not already a box. The class is also checked if supplied.

• as_box_if() boxes its input only if it not already a box, or if the predicate .p returns TRUE.

Usage

as_box(x, class = NULL)

as_box_if(.x, .p, .class = NULL, ...)

Arguments

x, .x	An R object.
class, .class	A box class. If the input is already a box of that class, it is returned as is. If the input needs to be boxed, class is passed to new_box().
.p	A predicate function.
...	Arguments passed to .p.

hadley/rlang documentation built on Dec. 17, 2024, 3:26 a.m.