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allow deferred close of nil stream (#20706)

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* allow deferred close of nil stream

* improve example
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n5m 2022-10-31 10:20:06 +00:00 • committed by GitHub
commit 52166e3546
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2 changed files with 20 additions and 4 deletions
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6
tests/stdlib/tstreams.nim
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@ -50,6 +50,12 @@ block tstreams3:
echo line
s.close
block:
let fs = newFileStream("amissingfile.txt")
defer: fs.close()
doAssert isNil(fs)
# bug #12410
var a = newStringStream "hehohihahuhyh"