new appraoch

pancake/system/vendor/php-http/httplug/src/Promise/HttpFulfilledPromise.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace Http\Client\Promise;
+
+use Http\Client\Exception;
+use Http\Promise\Promise;
+use Psr\Http\Message\ResponseInterface;
+
+final class HttpFulfilledPromise implements Promise
+{
+    /**
+     * @var ResponseInterface
+     */
+    private $response;
+
+    public function __construct(ResponseInterface $response)
+    {
+        $this->response = $response;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function then(callable $onFulfilled = null, callable $onRejected = null)
+    {
+        if (null === $onFulfilled) {
+            return $this;
+        }
+
+        try {
+            return new self($onFulfilled($this->response));
+        } catch (Exception $e) {
+            return new HttpRejectedPromise($e);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getState()
+    {
+        return Promise::FULFILLED;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function wait($unwrap = true)
+    {
+        if ($unwrap) {
+            return $this->response;
+        }
+    }
+}

pancake/system/vendor/php-http/httplug/src/Promise/HttpRejectedPromise.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Http\Client\Promise;
+
+use Http\Client\Exception;
+use Http\Promise\Promise;
+
+final class HttpRejectedPromise implements Promise
+{
+    /**
+     * @var Exception
+     */
+    private $exception;
+
+    public function __construct(Exception $exception)
+    {
+        $this->exception = $exception;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function then(callable $onFulfilled = null, callable $onRejected = null)
+    {
+        if (null === $onRejected) {
+            return $this;
+        }
+
+        try {
+            $result = $onRejected($this->exception);
+            if ($result instanceof Promise) {
+                return $result;
+            }
+
+            return new HttpFulfilledPromise($result);
+        } catch (Exception $e) {
+            return new self($e);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getState()
+    {
+        return Promise::REJECTED;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function wait($unwrap = true)
+    {
+        if ($unwrap) {
+            throw $this->exception;
+        }
+    }
+}