add wp-rocket

wp-content/plugins/wp-rocket/inc/Engine/Container/ServiceProvider/ServiceProviderAggregate.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace WP_Rocket\Engine\Container\ServiceProvider;
+
+use WP_Rocket\Engine\Container\ContainerAwareInterface;
+use WP_Rocket\Engine\Container\ContainerAwareTrait;
+
+class ServiceProviderAggregate implements ServiceProviderAggregateInterface
+{
+    use ContainerAwareTrait;
+
+    /**
+     * @var array
+     */
+    protected $providers = [];
+
+    /**
+     * @var array
+     */
+    protected $registered = [];
+
+    /**
+     * {@inheritdoc}
+     */
+    public function add($provider)
+    {
+        if (is_string($provider) && class_exists($provider)) {
+            $provider = new $provider;
+        }
+
+        if ($provider instanceof ContainerAwareInterface) {
+            $provider->setContainer($this->getContainer());
+        }
+
+        if ($provider instanceof BootableServiceProviderInterface) {
+            $provider->boot();
+        }
+
+        if ($provider instanceof ServiceProviderInterface) {
+            foreach ($provider->provides() as $service) {
+                $this->providers[$service] = $provider;
+            }
+
+            return $this;
+        }
+
+        throw new \InvalidArgumentException(
+            'A service provider must be a fully qualified class name or instance ' .
+            'of (\WP_Rocket\Engine\Container\ServiceProvider\ServiceProviderInterface)'
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function provides($service)
+    {
+        return array_key_exists($service, $this->providers);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function register($service)
+    {
+        if (! array_key_exists($service, $this->providers)) {
+            throw new \InvalidArgumentException(
+                sprintf('(%s) is not provided by a service provider', $service)
+            );
+        }
+
+        $provider  = $this->providers[$service];
+        $signature = get_class($provider);
+
+        if ($provider instanceof SignatureServiceProviderInterface) {
+            $signature = $provider->getSignature();
+        }
+
+        // ensure that the provider hasn't already been invoked by any other service request
+        if (in_array($signature, $this->registered)) {
+            return;
+        }
+
+        $provider->register();
+
+        $this->registered[] = $signature;
+    }
+}