make Key polymorphic in IDBCursor

src/Database/IndexedDB/IDBCursor.js

@@ -26,6 +26,7 @@ exports._continue = function _continue(cursor, key) {
     return function aff(success, error) {
         try {
             cursor.continue(key || undefined);
+            success();
         } catch (e) {
             error(new Error(e.name));
         }
@@ -36,6 +37,7 @@ exports._continuePrimaryKey = function _continuePrimaryKey(cursor, key, primaryK
     return function aff(success, error) {
         try {
             cursor.continuePrimaryKey(key, primaryKey);
+            success();
         } catch (e) {
             error(new Error(e.name));
         }

src/Database/IndexedDB/IDBCursor.purs

@@ -13,16 +13,17 @@ module Database.IndexedDB.IDBCursor
   , value
   ) where
 
-import Prelude                     (Unit, (>>>))
+import Prelude                            (Unit, ($), (>>>), map)
 
-import Control.Monad.Aff           (Aff)
-import Data.Function.Uncurried      as Fn
-import Data.Function.Uncurried     (Fn2, Fn3)
-import Data.Maybe                  (Maybe)
-import Data.Nullable               (Nullable, toNullable)
-import Data.Foreign                (Foreign, toForeign, unsafeFromForeign)
+import Control.Monad.Aff                  (Aff)
+import Data.Function.Uncurried             as Fn
+import Data.Function.Uncurried            (Fn2, Fn3)
+import Data.Maybe                         (Maybe)
+import Data.Nullable                      (Nullable, toNullable)
+import Data.Foreign                       (Foreign, toForeign, unsafeFromForeign)
 
 import Database.IndexedDB.Core
+import Database.IndexedDB.IDBKey.Internal (class IDBKey, Key(..), toKey, extractForeign)
 
 
 --------------------
@@ -33,60 +34,80 @@ import Database.IndexedDB.Core
 -- | There is no limit on how many cursors can be used at the same time.
 class IDBCursor cursor where
     -- | Advances the cursor through the next count records in range.
-    advance :: forall e. cursor -> Int -> Aff (idb :: IDB | e) Unit
+    advance
+        :: forall e
+        .  cursor
+        -> Int
+        -> Aff (idb :: IDB | e) Unit
 
     -- | Advances the cursor to the next record in range matching or after key.
-    continue :: forall e. cursor -> Maybe Key -> Aff (idb :: IDB | e) Unit
+    continue
+        :: forall e k. (IDBKey k)
+        => cursor
+        -> Maybe k
+        -> Aff (idb :: IDB | e) Unit
 
     -- | Advances the cursor to the next record in range matching or after key and primaryKey. Throws an "InvalidAccessError" DOMException if the source is not an index.
-    continuePrimaryKey :: forall e. cursor -> Key -> Key -> Aff (idb :: IDB | e) Unit
+    continuePrimaryKey
+        :: forall e k. (IDBKey k)
+        => cursor
+        -> k
+        -> k
+        -> Aff (idb :: IDB | e) Unit
 
     -- | Delete the record pointed at by the cursor with a new value.
-    delete :: forall e. cursor -> Aff (idb :: IDB | e) Unit
+    delete
+        :: forall e
+        .  cursor
+        -> Aff (idb :: IDB | e) Unit
 
     -- | Update the record pointed at by the cursor with a new value.
     -- |
     -- | Throws a "DataError" DOMException if the effective object store uses
     -- | in-line keys and the key would have changed.
-    update :: forall val e. cursor -> val -> Aff (idb :: IDB | e) Key
+    update
+        :: forall val e
+        .  cursor
+        -> val
+        -> Aff (idb :: IDB | e) Key
 
 
 --------------------
 -- ATTRIBUTES
 --
 -- | Returns the direction (Next|NextUnique|Prev|PrevUnique) of the cursor.
-direction
+direction'
   :: KeyCursor
   -> CursorDirection
-direction =
+direction' =
   Fn.runFn2 _direction (parse >>> toNullable)
 
 
 -- | Returns the key of the cursor. Throws a "InvalidStateError" DOMException
 -- | if the cursor is advancing or is finished.
-key
+key'
   :: forall e
   .  KeyCursor
   -> Aff (idb :: IDB | e) Key
-key =
-  _key
+key' =
+  _key >>> map Key
 
 
 -- | Returns the effective key of the cursor. Throws a "InvalidStateError" DOMException
 -- | if the cursor is advancing or is finished.
-primaryKey
+primaryKey'
   :: forall e
   .  KeyCursor
   -> Aff (idb :: IDB | e) Key
-primaryKey =
-  _primaryKey
+primaryKey' =
+  _primaryKey >>> map Key
 
 
 -- | Returns the IDBObjectStore or IDBIndex the cursor was opened from.
-source
+source'
   :: KeyCursor
   -> CursorSource
-source =
+source' =
   Fn.runFn3 _source ObjectStore Index
 
 
@@ -97,38 +118,38 @@ source =
 
 
 -- | Returns the direction (Next|NextUnique|Prev|PrevUnique) of the cursor.
-direction'
+direction
   :: ValueCursor
   -> CursorDirection
-direction' =
+direction =
   Fn.runFn2 _direction (parse >>> toNullable)
 
 
 -- | Returns the key of the cursor. Throws a "InvalidStateError" DOMException
 -- | if the cursor is advancing or is finished.
-key'
+key
   :: forall e
   .  ValueCursor
   -> Aff (idb :: IDB | e) Key
-key' =
-  _key
+key =
+  _key >>> map Key
 
 
 -- | Returns the effective key of the cursor. Throws a "InvalidStateError" DOMException
 -- | if the cursor is advancing or is finished.
-primaryKey'
+primaryKey
   :: forall e
   .  ValueCursor
   -> Aff (idb :: IDB | e) Key
-primaryKey' =
-  _primaryKey
+primaryKey =
+  _primaryKey >>> map Key
 
 
 -- | Returns the IDBObjectStore or IDBIndex the cursor was opened from.
-source'
+source
   :: ValueCursor
   -> CursorSource
-source' =
+source =
   Fn.runFn3 _source ObjectStore Index
 
 
@@ -144,19 +165,19 @@ value =
 -- INSTANCES
 --
 instance keyCursorKeyCursor :: IDBCursor KeyCursor where
-  advance            = Fn.runFn2 _advance
-  continue c mk      = Fn.runFn2 _continue c (toNullable mk)
-  continuePrimaryKey = Fn.runFn3 _continuePrimaryKey
-  delete             = _delete
-  update c           = toForeign >>> Fn.runFn2 _update c
+  advance                    = Fn.runFn2 _advance
+  continue c mk              = Fn.runFn2 _continue c (toNullable $ map (toKey >>> extractForeign) mk)
+  continuePrimaryKey c k1 k2 = Fn.runFn3 _continuePrimaryKey c (extractForeign $ toKey k1) (extractForeign $ toKey k2)
+  delete                     = _delete
+  update c                   = toForeign >>> Fn.runFn2 _update c >>> map Key
 
 
 instance valueCursorKeyCursor :: IDBCursor ValueCursor where
-  advance            = Fn.runFn2 _advance
-  continue c mk      = Fn.runFn2 _continue c (toNullable mk)
-  continuePrimaryKey = Fn.runFn3 _continuePrimaryKey
-  delete             = _delete
-  update c           = toForeign >>> Fn.runFn2 _update c
+  advance                    = Fn.runFn2 _advance
+  continue c mk              = Fn.runFn2 _continue c (toNullable $ map (toKey >>> extractForeign) mk)
+  continuePrimaryKey c k1 k2 = Fn.runFn3 _continuePrimaryKey c (extractForeign $ toKey k1) (extractForeign $ toKey k2)
+  delete                     = _delete
+  update c                   = toForeign >>> Fn.runFn2 _update c >>> map Key
 
 
 --------------------
@@ -169,12 +190,12 @@ foreign import _advance
 
 foreign import _continue
   :: forall cursor e
-  .  Fn2 cursor (Nullable Key) (Aff (idb :: IDB | e) Unit)
+  .  Fn2 cursor (Nullable Foreign) (Aff (idb :: IDB | e) Unit)
 
 
 foreign import _continuePrimaryKey
   :: forall cursor e
-  .  Fn3 cursor Key Key (Aff (idb :: IDB | e) Unit)
+  .  Fn3 cursor Foreign Foreign (Aff (idb :: IDB | e) Unit)
 
 
 foreign import _delete
@@ -191,13 +212,13 @@ foreign import _direction
 foreign import _key
   :: forall cursor e
   .  cursor
-  -> Aff (idb :: IDB | e) Key
+  -> Aff (idb :: IDB | e) Foreign
 
 
 foreign import _primaryKey
   :: forall cursor e
   .  cursor
-  -> Aff (idb :: IDB | e) Key
+  -> Aff (idb :: IDB | e) Foreign
 
 
 foreign import _source
@@ -207,7 +228,7 @@ foreign import _source
 
 foreign import _update
   :: forall cursor e
-  . Fn2 cursor Foreign (Aff (idb :: IDB | e) Key)
+  . Fn2 cursor Foreign (Aff (idb :: IDB | e) Foreign)
 
 
 foreign import _value