From b6a719bb3dcc51da8c162e213a4fdc43a35cb992 Mon Sep 17 00:00:00 2001 From: Alec Theriault Date: Mon, 15 Jan 2018 17:12:18 -0800 Subject: Update the GblRdrEnv when processing modules Without a complete environment, we will miss some instances that were encountered during typechecking. --- haddock-api/src/Haddock/Interface.hs | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'haddock-api') diff --git a/haddock-api/src/Haddock/Interface.hs b/haddock-api/src/Haddock/Interface.hs index 20689a8f..cbdf81cb 100644 --- a/haddock-api/src/Haddock/Interface.hs +++ b/haddock-api/src/Haddock/Interface.hs @@ -58,6 +58,8 @@ import GHC hiding (verbosity) import HscTypes import FastString (unpackFS) import MonadUtils (liftIO) +import TcRnTypes (tcg_rdr_env) +import RdrName (plusGlobalRdrEnv) #if defined(mingw32_HOST_OS) import System.IO @@ -163,6 +165,18 @@ processModule :: Verbosity -> ModSummary -> [Flag] -> IfaceMap -> InstIfaceMap - processModule verbosity modsum flags modMap instIfaceMap = do out verbosity verbose $ "Checking module " ++ moduleString (ms_mod modsum) ++ "..." tm <- loadModule =<< typecheckModule =<< parseModule modsum + + -- We need to modify the interactive context's environment so that when + -- Haddock later looks for instances, it also looks in the modules it + -- encountered while typechecking. + -- + -- See https://github.com/haskell/haddock/issues/469. + hsc_env@HscEnv{ hsc_IC = old_IC } <- getSession + let new_rdr_env = tcg_rdr_env . fst . GHC.tm_internals_ $ tm + setSession hsc_env{ hsc_IC = old_IC { + ic_rn_gbl_env = ic_rn_gbl_env old_IC `plusGlobalRdrEnv` new_rdr_env + } } + if not $ isBootSummary modsum then do out verbosity verbose "Creating interface..." (interface, msg) <- runWriterGhc $ createInterface tm flags modMap instIfaceMap -- cgit v1.2.3