[Haskell-cafe] Template Haskell and unsafePerformIO
barsoap at web.de
Sat Oct 18 19:59:44 EDT 2008
Shouldn't be there some kind of way to run IO code once at the
beginning of template processing? Something like a pair of
templateInit :: IO a
templateData :: a
where the a of both functions is the same and the latter is
automagically generated by TH.
Right now, I have to either use unsafePerformIO or runIO and IORef's to
load a file only once. Both solutions aren't necessarily pretty.
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