I'm trying to load my interpreter in the Q monad:
cr :: QuasiQuoter
cr = QuasiQuoter { quoteExp = quoteRuleFunc}
quoteRuleFunc :: String -> Q TH.Exp
quoteRuleFunc s = do
res <- runIO $ runInterpreter $ do
setImports ["Prelude", "Language.Nomyx.Rule",
"Language.Nomyx.Expression", "Language.Nomyx.Test",
"Language.Nomyx.Examples", "GHC.Base", "Data.Maybe"]
interpret s (as :: RuleFunc)
case res of
Right _ -> [| s |]
Left e -> fail $ show e
However, I always obtain an error durring compilation:
...
Loading package XXX ... linking ... done.
GHCi runtime linker: fatal error: I found a duplicate definition for symbol
__stginit_ghczm7zi4zi1_DsMeta
whilst processing object file
/usr/lib/ghc/ghc-7.4.1/libHSghc-7.4.1.a
This could be caused by:
* Loading two different object files which export the same symbol
* Specifying the same object file twice on the GHCi command line
* An incorrect `package.conf' entry, causing some object to be
loaded twice.
GHCi cannot safely continue in this situation. Exiting now. Sorry.
I vaguely understand that the interpreted modules are conflicting with the
compiled ones...
On Fri, Feb 22, 2013 at 11:51 PM, Corentin Dupont wrote: Great! That seems very powerful. So you can do what you want during
compilation, readin files, send data over the network?
Other question, in my example how can I halt the compilation if a test
program is wrong? On Fri, Feb 22, 2013 at 8:30 PM, Francesco Mazzoli At Fri, 22 Feb 2013 19:43:51 +0100,
Corentin Dupont wrote: Hi Adam,
that looks interresting. I'm totally new to TH and QuasiQuotes, though.
Can I run IO in a QuasiQuoter? I can run my own interpreter. Yes, you can:
<
http://hackage.haskell.org/packages/archive/template-haskell/2.8.0.0/doc/htm... . Francesco