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19cab9fa51
* stacktraces can now show custom runtime msgs * improve tests/stdlib/tstackframes.nim * fix test for --gc:arc * test --stacktraceMsgs:on and --stacktraceMsgs:off * --stacktracemsgs:off by default
39 lines
868 B
Nim
39 lines
868 B
Nim
import std/stackframes
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# line 5
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var count = 0
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proc main1(n: int) =
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setFrameMsg $("main1", n)
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if n > 0:
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main1(n-1)
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proc main2(n: int) =
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count.inc
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setFrameMsg $("main2", n, count)
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proc bar() =
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setFrameMsg $("bar ",)
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if n < 3: raise newException(CatchableError, "on purpose")
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bar()
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main2(n-1)
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proc main() =
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var z = 0
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setFrameMsg "\n z: " & $z, prefix = ""
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# multiple calls inside a frame are possible
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z.inc
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setFrameMsg "\n z: " & $z, prefix = ""
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try:
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main2(5)
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except CatchableError:
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main1(10) # goes deep and then unwinds; sanity check to ensure `setFrameMsg` from inside
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# `main1` won't invalidate the stacktrace; if StackTraceEntry.frameMsg
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# were a reference instead of a copy, this would fail.
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let e = getCurrentException()
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let trace = e.getStackTrace
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echo trace
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main()
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