"Patai Gergely" <patai_gerg...@fastmail.fm> wrote: > Am I right thinking that the > NOINLINE pragma on unsafeDupablePerformIO prevents the problem of > multiple evaluation discussed yesterday? > From what I know and experienced, yes. Each individual unsafePerformIO only ever evaluates its action once, and if they are prevented from duplicating, things should work out as intended.
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