Simon Marlow wrote:
Really hClose shouldn't complain about a finalized handle, I'll see if
I can fix that.
That sounds like a work-around to me, not a fix, because it would not
fix more complicated exception handlers.
I don't think there's a problem with more complicated exception
handlers. The fix is to make the finalized Handle look like a closed
Handle; it's a fix to the finalizer, not the exception handler, so it's
not a workaround for this one particular symptom.
Given the documentation of bracket, I would expect the following to
write to the file.
main = bracket
(openFile "output" WriteMode)
(\handle -> do
hPutStr handle "I want this to be written in any case"
hClose handle)
blackhole
blackhole = blackhole
But currently, hPutStr complains about a finalized handle, and with your
fix, it would complain about a closed handle, which is hardly better.
Tillmann
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