use currying in build-computed

addon/-build-computed.js

@@ -31,17 +31,27 @@ function buildCallback({ incomingCallback, createArgs }) {
   return newCallback;
 }
 
-export default function({ args, collapseKeys, getValue, flattenKeys }) {
-  let { keys, callback: incomingCallback } = parseComputedArgs(args);
+export default function({ collapseKeys, getValue, flattenKeys }) {
+  return function(...args) {
+    let { keys, callback: incomingCallback } = parseComputedArgs(args);
 
-  let collapsedKeys = collapseKeys(keys);
+    let collapsedKeys = collapseKeys(keys);
 
-  function createArgs(context) {
-    let bundledKeys = collapsedKeys.map(key => ({ context, key }));
-    return bundledKeys.map(getValue);
-  }
+    function createArgs(context) {
+      let bundledKeys = collapsedKeys.map(key => ({ context, key }));
+      return bundledKeys.map(getValue);
+    }
 
-  let newCallback = buildCallback({ incomingCallback, createArgs });
+    let newCallback = buildCallback({ incomingCallback, createArgs });
 
-  return computed(...flattenKeys(keys), newCallback);
+    return computed(...flattenKeys(keys), newCallback);
+  }
+}
+
+export function buildCurriedComputed(computed) {
+  return function(callback) {
+    return function() {
+      return computed(...arguments, callback).readOnly();
+    };
+  };
 }

addon/computed-unsafe.js

@@ -4,6 +4,4 @@ import flattenKeys from './flatten-keys-unsafe';
 
 const collapseKeys = keys => keys;
 
-export default function(...args) {
-  return buildComputed({ args, collapseKeys, getValue, flattenKeys });
-}
+export default buildComputed({ collapseKeys, getValue, flattenKeys });

addon/computed.js

@@ -3,6 +3,4 @@ import collapseKeys from './collapse-keys';
 import getValue from './get-value';
 import flattenKeys from './flatten-keys';
 
-export default function(...args) {
-  return buildComputed({ args, collapseKeys, getValue, flattenKeys });
-}
+export default buildComputed({ collapseKeys, getValue, flattenKeys });

addon/curried-computed.js

@@ -1,7 +1,4 @@
+import { buildCurriedComputed } from './-build-computed';
 import computed from './computed';
 
-export default function(callback) {
-  return function() {
-    return computed(...arguments, callback).readOnly();
-  };
-}
+export default buildCurriedComputed(computed);