Drop functions which don't enforce strictness

These functions require user to maintain invariant that all element of vector is
in WHNF. And it's well known that this insvariant is difficult to enforce and
its violations are usually invisible.

Such spec leaks may be invisibe during testing only to cause pproblem in
production. So it's better to remove them unless good use case for them appears

vector/src/Data/Vector/Strict.hs

@@ -23,11 +23,9 @@
 -- Immutable strict boxed vectors (that is, polymorphic arrays capable
 -- of holding any Haskell value). It is possible to create vector
 -- which contain bottom elements, either by using mutable interfaces
--- (see "Data.Vector.Strict.Mutable") or functions that don't preserve
--- strictness ('lazyFromArray').
+-- (see "Data.Vector.Strict.Mutable")
 --
 -- For unboxed arrays, use "Data.Vector.Unboxed".
-
 module Data.Vector.Strict (
   -- * Boxed vectors
   Vector, MVector,
@@ -163,9 +161,9 @@ module Data.Vector.Strict (
   -- ** Lists
   toList, Data.Vector.Strict.fromList, Data.Vector.Strict.fromListN,
   -- ** Lazy vectors
-  toLazy, fromLazy, lazyFromLazy,
+  toLazy, fromLazy,
   -- ** Arrays
-  toArray, fromArray, lazyFromArray, toArraySlice, unsafeFromArraySlice, unsafeLazyFromArraySlice,
+  toArray, fromArray, toArraySlice, unsafeFromArraySlice,
 
   -- ** Other vector types
   G.convert,
@@ -2476,11 +2474,6 @@ toLazy (Vector v) = v
 fromLazy :: V.Vector a -> Vector a
 fromLazy vec = liftRnfV (`seq` ()) v `seq` v where v = Vector vec
 
--- | /O(1)/ Convert lazy array to strict array. This function does not
--- evaluate vector elements.
-lazyFromLazy :: V.Vector a -> Vector a
-lazyFromLazy = Vector
-
 
 -- Conversions - Arrays
 -- -----------------------------
@@ -2492,15 +2485,7 @@ fromArray :: Array a -> Vector a
 {-# INLINE fromArray #-}
 fromArray arr = liftRnfV (`seq` ()) vec `seq` vec
   where
-    vec = lazyFromArray arr
-
--- | /O(1)/ Convert an array to a vector. This function does not touch
--- content of array so resulting vector may contain bottoms.
---
--- @since NEXT
-lazyFromArray :: Array a -> Vector a
-{-# INLINE lazyFromArray #-}
-lazyFromArray = Vector . V.fromArray
+    vec = Vector $ V.fromArray arr
 
 -- | /O(n)/ Convert a vector to an array.
 --
@@ -2537,25 +2522,8 @@ unsafeFromArraySlice ::
   -> Vector a
 {-# INLINE unsafeFromArraySlice #-}
 unsafeFromArraySlice arr offset len = liftRnfV (`seq` ()) vec `seq` vec
-  where vec = unsafeLazyFromArraySlice arr offset len
+  where vec = Vector (V.unsafeFromArraySlice arr offset len)
 
--- | /O(1)/ Convert an array slice to a vector. This function does not touch
--- content of array so resulting vector may contain bottoms.
---
--- This function is very unsafe, because constructing an invalid
--- vector can yield almost all other safe functions in this module
--- unsafe. These are equivalent:
---
--- > unsafeFromArraySlice len offset === unsafeTake len . unsafeDrop offset . fromArray
---
--- @since 0.13.0.0
-unsafeLazyFromArraySlice ::
-     Array a -- ^ Immutable boxed array.
-  -> Int -- ^ Offset
-  -> Int -- ^ Length
-  -> Vector a
-{-# INLINE unsafeLazyFromArraySlice #-}
-unsafeLazyFromArraySlice arr o l = Vector (V.unsafeFromArraySlice arr o l)
 
 
 -- Conversions - Mutable vectors

vector/src/Data/Vector/Strict/Mutable.hs

@@ -67,7 +67,7 @@ module Data.Vector.Strict.Mutable (
   -- ** Filling and copying
   set, copy, move, unsafeCopy, unsafeMove,
   -- ** Lazy arrays
-  toLazy, fromLazy, lazyFromLazy,
+  toLazy, fromLazy,
   -- ** Arrays
   fromMutableArray, toMutableArray,
 
@@ -717,14 +717,7 @@ toLazy :: MVector s a -> MV.MVector s a
 {-# INLINE toLazy #-}
 toLazy (MVector vec) = vec
 
--- | /O(1)/ Convert lazy mutable vector to strict mutable
--- vector. Vectors will share mutable buffer. This function does not
--- evaluate vector elements to WHNF.
-lazyFromLazy :: MV.MVector s a -> MVector s a
-{-# INLINE lazyFromLazy #-}
-lazyFromLazy = MVector
-
--- | /O(1)/ Convert lazy mutable vector to strict mutable
+-- | /O(n)/ Convert lazy mutable vector to strict mutable
 -- vector. Vectors will share mutable buffer. This function evaluates
 -- vector elements to WHNF.
 fromLazy :: PrimMonad m => MV.MVector (PrimState m) a -> m (MVector (PrimState m) a)