in R-devel (R >= 4.4.0) is.atomic(NULL) is false

Author: mmaechler

DESCRIPTION

@@ -1,7 +1,7 @@
 Encoding: UTF-8
 Package: covr
 Title: Test Coverage for Packages
-Version: 3.5.1.9003
+Version: 3.5.1.9004
 Authors@R: c(
     person("Jim", "Hester", email = "[email protected]", role = c("aut", "cre")),
     person("Willem", "Ligtenberg", role = "ctb"),

R/trace_calls.R

@@ -28,7 +28,7 @@ trace_calls <- function (x, parent_functions = NULL, parent_ref = NULL) {
     lapply(y, trace_calls, parent_functions = parent_functions)
   }
 
-  if (is.atomic(x) || is.name(x)) {
+  if (is.atomic(x) || is.name(x) || is.null(x)) {
     if (is.null(parent_ref)) {
       x
     }