simplified code

src/Environment.php

@@ -356,7 +356,7 @@ class Environment
             return new TemplateWrapper($this, $name);
         }
 
-        return new TemplateWrapper($this, $this->loadTemplate($name));
+        return new TemplateWrapper($this, $this->loadTemplate($this->getTemplateClass($name), $name));
     }
 
     /**
@@ -376,15 +376,7 @@ class Environment
      *
      * @internal
      */
-    public function loadTemplate($name, $index = null)
+    public function loadTemplate(string $cls, string $name, int $index = null): Template
-    {
-        return $this->loadClass($this->getTemplateClass($name), $name, $index);
-    }
-
-    /**
-     * @internal
-     */
-    public function loadClass($cls, $name, $index = null)
     {
         $mainCls = $cls;
         if (null !== $index) {
@@ -459,7 +451,7 @@ class Environment
 
         $this->setLoader($loader);
         try {
-            return new TemplateWrapper($this, $this->loadTemplate($name));
+            return new TemplateWrapper($this, $this->loadTemplate($this->getTemplateClass($name), $name));
         } finally {
             $this->setLoader($current);
         }
@@ -510,7 +502,7 @@ class Environment
             }
 
             try {
-                return $this->loadTemplate($name);
+                return $this->load($name);
             } catch (LoaderError $e) {
                 if (1 === \count($names)) {
                     throw $e;

src/Template.php

@@ -320,11 +320,11 @@ abstract class Template
                 if (false !== $pos = strrpos($class, '___', -1)) {
                     $class = substr($class, 0, $pos);
                 }
-
+            } else {
-                return $this->env->loadClass($class, $template, $index);
+                $class = $this->env->getTemplateClass($template);
             }
 
-            return $this->env->loadTemplate($template, $index);
+            return $this->env->loadTemplate($class, $template, $index);
         } catch (Error $e) {
             if (!$e->getSourceContext()) {
                 $e->setSourceContext($templateName ? new Source('', $templateName) : $this->getSourceContext());

test/Twig/Tests/EnvironmentTest.php

@@ -367,7 +367,7 @@ class Twig_Tests_EnvironmentTest extends \PHPUnit\Framework\TestCase
     {
         $template = 'testFailLoadTemplate.twig';
         $twig = new Environment(new ArrayLoader([$template => false]));
-        $twig->loadTemplate($template, 112233);
+        $twig->loadTemplate($twig->getTemplateClass($template), $template, 112233);
     }
 
     protected function getMockLoader($templateName, $templateContent)