Add Renderer class

formwork/Template/Renderer.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Formwork\Template;
+
+use Closure;
+
+class Renderer
+{
+    /**
+     * Renderer instance
+     *
+     * @var Renderer
+     */
+    protected static $instance;
+
+    /**
+     * Load a script passing variables and binding to given instance and context
+     *
+     * @param string      $filename
+     * @param array       $vars
+     * @param object      $instance
+     * @param string|null $context
+     *
+     * @return mixed
+     */
+    public static function load($filename, array $vars, $instance, $context = null)
+    {
+        if (is_null(static::$instance)) {
+            static::$instance = new static();
+        }
+        $closure = static::$instance->getClosure($instance, $context);
+        return $closure($filename, $vars);
+    }
+
+    /**
+     * Return rendering closure bound to given instance and context
+     *
+     * @param object      $instance
+     * @param string|null $context
+     *
+     * @return Closure
+     */
+    protected function getClosure($instance, $context = null)
+    {
+        return Closure::bind(function ($_filename, array $_vars) {
+            extract($_vars);
+            return include $_filename;
+        }, $instance, $context);
+    }
+}