From 6bf2a07c5aec297be359d24b41e1a1aa3adffa3a Mon Sep 17 00:00:00 2001
From: n-kall <33577035+n-kall@users.noreply.github.com>
Date: Tue, 7 Jan 2025 15:29:11 +0200
Subject: [PATCH] don't allow variables to contain NA values

---
 R/variables.R | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/R/variables.R b/R/variables.R
index 63d62cd..e0c732a 100644
--- a/R/variables.R
+++ b/R/variables.R
@@ -235,6 +235,9 @@ check_existing_variables <- function(variables, x, regex = FALSE,
     return(NULL)
   }
 
+  # do not allow NA values in variables
+  checkmate::assertCharacter(variables, any.missing = FALSE)
+
   regex <- as_one_logical(regex)
   scalar <- as_one_logical(scalar)
   exclude <- as_one_logical(exclude)