#7018: Preprocess code before checking safety
---------------------------------------+------------------------------------
Reporter: favonia | Owner:
Type: feature request | Status: new
Priority: normal | Component: Compiler
Version: 7.4.2 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: GHC rejects valid program | Testcase:
Blockedby: | Blocking:
Related: |
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Apparently GHC checks safety (as safe Haskell) before preprocessing. This
is sometimes undesirable; for example:
{{{
#if __GLASGOW_HASKELL__ >= 702
import Foreign.Safe
#else
import Foreign
#endif
}}}
Not sure if preprocessing will break the design of safe Haskell, but if it
won't I hope GHC can accept this code as safe.
--
Ticket URL: <
http://hackage.haskell.org/trac/ghc/ticket/7018>
GHC <
http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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