CallInvoker documentation

Author: WyriHaximus

src/CallInvokerInterface.php

@@ -2,6 +2,8 @@
 
 namespace React\Filesystem;
 
+use React\Promise\PromiseInterface;
+
 interface CallInvokerInterface
 {
     /**
@@ -10,14 +12,20 @@ interface CallInvokerInterface
     public function __construct(AdapterInterface $adapter);
 
     /**
+     * Call the given $function with the given $args,
+     * when appropriate for the concrete invoker.
+     *
      * @param string $function
      * @param array $args
      * @param int $errorResultCode
-     * @return \React\Promise\ExtendedPromiseInterface
+     * @return PromiseInterface
      */
     public function invokeCall($function, $args, $errorResultCode = -1);
 
     /**
+     * Return true when no calls are waiting to be called,
+     * otherwise return false.
+     *
      * @return bool
      */
     public function isEmpty();