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-rw-r--r--haddock-api/src/Haddock/Interface/Rename.hs13
1 files changed, 12 insertions, 1 deletions
diff --git a/haddock-api/src/Haddock/Interface/Rename.hs b/haddock-api/src/Haddock/Interface/Rename.hs
index 2d3a28cc..78ab5a08 100644
--- a/haddock-api/src/Haddock/Interface/Rename.hs
+++ b/haddock-api/src/Haddock/Interface/Rename.hs
@@ -273,10 +273,21 @@ renameType t = case t of
HsCoreTy a -> pure (HsCoreTy a)
HsExplicitListTy i a b -> HsExplicitListTy i a <$> mapM renameLType b
HsExplicitTupleTy a b -> HsExplicitTupleTy a <$> mapM renameLType b
- HsSpliceTy _ _ -> error "renameType: HsSpliceTy"
+ HsSpliceTy s _ -> renameHsSpliceTy s
HsWildCardTy a -> HsWildCardTy <$> renameWildCardInfo a
HsAppsTy _ -> error "renameType: HsAppsTy"
+-- | Rename splices, but _only_ those that turn out to be for types.
+-- I think this is actually safe for our possible inputs:
+--
+-- * the input is from after GHC's renamer, so should have an 'HsSpliced'
+-- * the input is typechecked, and only 'HsSplicedTy' should get through that
+--
+renameHsSpliceTy :: HsSplice Name -> RnM (HsType DocName)
+renameHsSpliceTy (HsSpliced _ (HsSplicedTy t)) = renameType t
+renameHsSpliceTy (HsSpliced _ _) = error "renameHsSpliceTy: not an HsSplicedTy"
+renameHsSpliceTy _ = error "renameHsSpliceTy: not an HsSpliced"
+
renameLHsQTyVars :: LHsQTyVars GhcRn -> RnM (LHsQTyVars DocNameI)
renameLHsQTyVars (HsQTvs { hsq_implicit = _, hsq_explicit = tvs })
= do { tvs' <- mapM renameLTyVarBndr tvs