diff options
Diffstat (limited to 'haddock-api/src/Haddock/Interface/Create.hs')
| -rw-r--r-- | haddock-api/src/Haddock/Interface/Create.hs | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/haddock-api/src/Haddock/Interface/Create.hs b/haddock-api/src/Haddock/Interface/Create.hs index 5a58e1ac..d554eeb3 100644 --- a/haddock-api/src/Haddock/Interface/Create.hs +++ b/haddock-api/src/Haddock/Interface/Create.hs @@ -39,6 +39,7 @@ import Data.Ord import Control.Applicative import Control.Monad import Data.Traversable +import GHC.Stack (HasCallStack) import Avail hiding (avail) import qualified Avail @@ -58,16 +59,21 @@ import FastString ( unpackFS, bytesFS ) import BasicTypes ( StringLiteral(..), SourceText(..), PromotionFlag(..) ) import qualified Outputable as O +mkExceptionContext :: TypecheckedModule -> String +mkExceptionContext = + ("creating Haddock interface for " ++) . moduleNameString . ms_mod_name . pm_mod_summary . tm_parsed_module -- | Use a 'TypecheckedModule' to produce an 'Interface'. -- To do this, we need access to already processed modules in the topological -- sort. That's what's in the 'IfaceMap'. -createInterface :: TypecheckedModule +createInterface :: HasCallStack + => TypecheckedModule -> [Flag] -- Boolean flags -> IfaceMap -- Locally processed modules -> InstIfaceMap -- External, already installed interfaces -> ErrMsgGhc Interface -createInterface tm flags modMap instIfaceMap = do +createInterface tm flags modMap instIfaceMap = + withExceptionContext (mkExceptionContext tm) $ do let ms = pm_mod_summary . tm_parsed_module $ tm mi = moduleInfo tm @@ -207,7 +213,6 @@ createInterface tm flags modMap instIfaceMap = do , ifaceDynFlags = dflags } - -- | Given all of the @import M as N@ declarations in a package, -- create a mapping from the module identity of M, to an alias N -- (if there are multiple aliases, we pick the last one.) This @@ -652,7 +657,8 @@ collectDocs = go Nothing [] -- We create the export items even if the module is hidden, since they -- might be useful when creating the export items for other modules. mkExportItems - :: Bool -- is it a signature + :: HasCallStack + => Bool -- is it a signature -> IfaceMap -> Maybe Package -- this package -> Module -- this module @@ -711,7 +717,8 @@ mkExportItems availExportItem is_sig modMap thisMod semMod warnings exportedNames maps fixMap splices instIfaceMap dflags avail -availExportItem :: Bool -- is it a signature +availExportItem :: HasCallStack + => Bool -- is it a signature -> IfaceMap -> Module -- this module -> Module -- semantic module @@ -804,7 +811,7 @@ availExportItem is_sig modMap thisMod semMod warnings exportedNames Just synifiedDecl -> pure synifiedDecl Nothing -> O.pprPanic "availExportItem" (O.text err) - availExportDecl :: AvailInfo -> LHsDecl GhcRn + availExportDecl :: HasCallStack => AvailInfo -> LHsDecl GhcRn -> (DocForDecl Name, [(Name, DocForDecl Name)]) -> ErrMsgGhc [ ExportItem GhcRn ] availExportDecl avail decl (doc, subs) @@ -1075,7 +1082,8 @@ fullModuleContents is_sig modMap pkgName thisMod semMod warnings gre exportedNam -- This function looks through the declarations in this module to try to find -- the one with the right name. extractDecl - :: DeclMap -- ^ all declarations in the file + :: HasCallStack + => DeclMap -- ^ all declarations in the file -> Name -- ^ name of the declaration to extract -> LHsDecl GhcRn -- ^ parent declaration -> Either ErrMsg (LHsDecl GhcRn) @@ -1159,10 +1167,11 @@ extractDecl declMap name decl _ -> Left "internal: extractDecl (ClsInstD)" _ -> Left ("extractDecl: Unhandled decl for " ++ getOccString name) -extractPatternSyn :: Name -> Name -> [LHsTypeArg GhcRn] -> [LConDecl GhcRn] -> Either ErrMsg (LSig GhcRn) +extractPatternSyn :: HasCallStack => Name -> Name -> [LHsTypeArg GhcRn] -> [LConDecl GhcRn] -> Either ErrMsg (LSig GhcRn) extractPatternSyn nm t tvs cons = case filter matches cons of - [] -> Left "extractPatternSyn: constructor pattern not found" + [] -> Left . O.showSDocUnsafe $ + O.text "constructor pattern " O.<+> O.ppr nm O.<+> O.text "not found in type" O.<+> O.ppr t con:_ -> pure (extract <$> con) where matches :: LConDecl GhcRn -> Bool |