Version 4.5.0

system/3rd_party/graphql-php/Executor/Promise/Promise.php

@@ -0,0 +1,39 @@
+<?php
+namespace GraphQL\Executor\Promise;
+
+use GraphQL\Utils\Utils;
+
+/**
+ * Convenience wrapper for promises represented by Promise Adapter
+ */
+class Promise
+{
+    private $adapter;
+
+    public $adoptedPromise;
+
+    /**
+     * Promise constructor.
+     *
+     * @param mixed $adoptedPromise
+     * @param PromiseAdapter $adapter
+     */
+    public function __construct($adoptedPromise, PromiseAdapter $adapter)
+    {
+        Utils::invariant(!$adoptedPromise instanceof self, 'Expecting promise from adapted system, got ' . __CLASS__);
+
+        $this->adapter = $adapter;
+        $this->adoptedPromise = $adoptedPromise;
+    }
+
+    /**
+     * @param callable|null $onFulfilled
+     * @param callable|null $onRejected
+     *
+     * @return Promise
+     */
+    public function then(callable $onFulfilled = null, callable $onRejected = null)
+    {
+        return $this->adapter->then($this, $onFulfilled, $onRejected);
+    }
+}