Sourced functions within job don't work with objects defined out of function

[MiksLynx]

System details

RStudio Edition : Desktop
RStudio Version : 1.2.1335
OS Version      : Windows Server 2016 Standard
R Version       : 3.5.0

Steps to reproduce the problem

1. Save this code in functions.R

customFunction <- function(first, second) {
  first + second
}

customFunction2 <- function(first, second) {
  first + second + d
}

2. Run this code as a separate job

a <- c(1,2)

b <- c(3,4)

d <- c(100, 100)
source('functions.R')

xx <- customFunction(a, b)

yy <- customFunction2(a, b)

Describe the problem in detail

The job fails with error message:

Error in customFunction2(a, b) : object 'd' not found
Calls: sourceWithProgress -> eval -> eval -> customFunction2
Execution halted

Describe the behavior you expected

I expected the job to run without errors. I suppose the problem is within the fact that

1. Object d is not a parameter of function customFunction2();
2. Functions are sourced from different .R file.

I understand that not defining d as a parameter in function is not the correct way of programming, but the question is if this is the way that Jobs are supposed to work?

[ronblum]

@MiksLynx Thank you for raising this. We'll review this as we continue development of RStudio.

Reproducible in RStudio Desktop on MacOS 10.15 (Catalina).

[jmcphers]

This issue is currently tracked in #4586.