8 Dec
2012
8 Dec
'12
8:34 a.m.
Is there a way to determine whether a module has been marked safe by GHC for purposes of Safe Haskell? The GHC 7.4 docs say that if I compile a module and I don't use the -XSafe or -XTrustworthy flag, GHC will automatically figure out whether the module would have compiled with -XSafe and, if so, marks the module as safe. Where does GHC record this determination? It doesn't seem to show up in ghc-pkg dump (there you can see trusted packages, but I am looking for safe-inferred status for modules.) ghc --show-iface seems to come up dry too. I know Haddock shows this information but sometimes it says "Safe Haskell: None". I have no idea what this means so I was wondering what GHC itself says. Thanks. --Omari