Promisor::update() now accepts variadic args

lib/Future.php

@@ -53,7 +53,7 @@ class Future implements Promisor, Promise {
      * @throws \LogicException if the promise has already resolved
      * @return void
      */
-    public function update($progress) {
+    public function update(...$progress) {
         if ($this->isResolved) {
             throw new \LogicException(
                 'Cannot update resolved promise'
@@ -61,7 +61,7 @@ class Future implements Promisor, Promise {
         }
 
         foreach ($this->watchers as $watcher) {
-            $watcher($progress);
+            $watcher(...$progress);
         }
     }
 

lib/PrivateFuture.php

@@ -16,10 +16,12 @@ class PrivateFuture implements Promisor {
     public function __construct() {
         $this->promise = new Unresolved;
         $this->resolver = function(\Exception $error = null, $result = null) {
-            $this->resolve($error, $result); // bound to private Unresolved::resolve() at call-time
+            // bound to private Unresolved::resolve() at call-time
+            $this->resolve($error, $result);
         };
-        $this->updater = function($progress) {
-            $this->update($progress); // bound to private Unresolved::update() at call-time
+        $this->updater = function(...$progress) {
+            // bound to private Unresolved::update() at call-time
+            $this->update(...$progress);
         };
     }
 
@@ -36,8 +38,8 @@ class PrivateFuture implements Promisor {
      * @param mixed $progress
      * @return void
      */
-    public function update($progress) {
-        $this->updater->call($this->promise, $progress);
+    public function update(...$progress) {
+        $this->updater->call($this->promise, ...$progress);
     }
 
     /**

lib/Promisor.php

@@ -43,7 +43,7 @@ interface Promisor {
      * @param mixed $progress
      * @return void
      */
-    public function update($progress);
+    public function update(...$progress);
 
     /**
      * Resolve the promised value as a success