R Under development (unstable) (2025-04-29 r88182 ucrt) -- "Unsuffered Consequences"
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> library(winch)
> 
> foo0 <- function() {
+   winch_call(bar0)
+ }
> 
> bar0 <- function() {
+   winch_call(baz0)
+ }
> 
> baz0 <- function() {
+   winch_add_trace_back()
+ }
> 
> if (winch_available()) {
+   foo0()
+ }
    ▆
 1. └─global foo0()
 2.   └─winch::winch_call(bar0)
 3.     └─`/winch.dll`::register_frame_ctor()
 4.       └─global `<fn>`()
 5.         └─winch::winch_call(baz0)
 6.           └─`/winch.dll`::register_frame_ctor()
 7.             └─global `<fn>`()
Warning message:
`winch_add_trace_back()` was deprecated in winch 0.1.0. 
> 
> proc.time()
   user  system elapsed 
   0.37    0.12    0.48