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import std/stackframes
# line 5
var count = 0
proc main1(n: int) =
setFrameMsg $("main1", n)
if n > 0:
main1(n-1)
proc main2(n: int) =
count.inc
setFrameMsg $("main2", n, count)
proc bar() =
setFrameMsg $("bar ",)
if n < 3: raise newException(CatchableError, "on purpose")
bar()
main2(n-1)
proc main() =
var z = 0
setFrameMsg "\n z: " & $z, prefix = ""
# multiple calls inside a frame are possible
z.inc
setFrameMsg "\n z: " & $z, prefix = ""
try:
main2(5)
except CatchableError:
main1(10) # goes deep and then unwinds; sanity check to ensure `setFrameMsg` from inside
# `main1` won't invalidate the stacktrace; if StackTraceEntry.frameMsg
# were a reference instead of a copy, this would fail.
let e = getCurrentException()
let trace = e.getStackTrace
echo trace
main()
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