bug #3046 Fixed: Endless loop if more than one parent without the mac…

…ro exists (nea)

This PR was squashed before being merged into the 2.x branch (closes #3046).

Discussion
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Fixed: Endless loop if more than one parent without the macro exists

Hi @fabpot

I made a quick fix for the parent macro method call fix you did for me in #3042. Your code works in case the direct parent has the macro. But if there is a longer hierarchy and the looked for macro is in a parent template +1 it runs into an endless loop because the `->getParent()` method is always called on `$template` but never the newer `$parent`.

Best

Commits
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4497083 Fixed: Endless loop if more than one parent without the macro exists

src/Extension/CoreExtension.php

@@ -1083,7 +1083,8 @@ function twig_capitalize_string_filter(Environment $env, $string)
 function twig_call_macro(Template $template, string $method, array $args, int $lineno, array $context, Source $source)
 {
     if (!method_exists($template, $method)) {
-        while ($parent = $template->getParent($context)) {
+        $parent = $template;
+        while ($parent = $parent->getParent($context)) {
             if (method_exists($parent, $method)) {
                 return $parent->$method(...$args);
             }