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-rw-r--r--haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs14
1 files changed, 13 insertions, 1 deletions
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs b/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs
index a8a4e8ec..109788fd 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs
@@ -7,6 +7,7 @@
module Haddock.Backends.Xhtml.Specialize
( specialize, specialize'
, specializeTyVarBndrs
+ , specializePseudoFamilyDecl
, sugar, rename
, freeVariables
) where
@@ -58,8 +59,9 @@ specialize' = flip $ foldr (uncurry specialize)
-- Again, it is just a convenience function around 'specialize'. Note that
-- length of type list should be the same as the number of binders.
specializeTyVarBndrs :: (Eq name, Typeable name, DataId name)
+ => Data a
=> LHsTyVarBndrs name -> [HsType name]
- -> HsType name -> HsType name
+ -> a -> a
specializeTyVarBndrs bndrs typs =
specialize' $ zip bndrs' typs
where
@@ -68,6 +70,16 @@ specializeTyVarBndrs bndrs typs =
bname (KindedTyVar (L _ name) _) = name
+specializePseudoFamilyDecl :: (Eq name, Typeable name, DataId name)
+ => LHsTyVarBndrs name -> [HsType name]
+ -> PseudoFamilyDecl name
+ -> PseudoFamilyDecl name
+specializePseudoFamilyDecl bndrs typs decl =
+ decl { pfdTyVars = map specializeTyVars (pfdTyVars decl) }
+ where
+ specializeTyVars = specializeTyVarBndrs bndrs typs
+
+
-- | Make given type use tuple and list literals where appropriate.
--
-- After applying 'specialize' function some terms may not use idiomatic list