Trailing commas cause problems with functions accessed via $ #266
Description
Error description
Assume we have the following module.R:
header <- function() {
tags$span(
"Hello!",
)
}Now box::use(./module) results in Error in box::use(./module) : argument "fun" is missing, with no default. The problem can be fixed by removing tags$ or the trailing comma:
# Works either way
header <- function() tags$span("Hello!")
header <- function() span("Hello!", )The example was inspired by shiny::tags$span() which accepts trailing commas, but tags don't need to be defined to encounter the issue above.
The issue seemed related to #263 which I reported earlier, but it still occurs on the dev branch (tested after installing with remotes::install_github("klmr/box@9fb08c6")).
R version
platform x86_64-pc-linux-gnu
arch x86_64
os linux-gnu
system x86_64, linux-gnu
status
major 4
minor 1.1
year 2021
month 08
day 10
svn rev 80725
language R
version.string R version 4.1.1 (2021-08-10)
nickname Kick Things
‘box’ version
1.1.9000