function Registry::addFixedPreprocessFunctions

Adds $prefix_preprocess functions to every hook.

Parameters

array $cache: The theme registry, as documented in \Drupal\Core\Theme\Registry::processExtension().

array $fixed_preprocess_functions: A list of preprocess functions.

array $old_cache: An already processed theme registry.

File

core/lib/Drupal/Core/Theme/Registry.php, line 954

Class

Registry

Defines the theme registry service.

Namespace

Code

protected function addFixedPreprocessFunctions(array &$cache, array $fixed_preprocess_functions, array $old_cache = []) : void {
    foreach (array_keys(array_diff_key($cache, $old_cache)) as $hook) {
        if ($hook == static::PREPROCESS_INVOKES) {
            continue;
        }
        if (!isset($cache[$hook]['preprocess functions'])) {
            $cache[$hook]['preprocess functions'] = $fixed_preprocess_functions;
        }
        else {
            $offset = 0;
            while (isset($cache[$hook]['preprocess functions'][$offset]) && is_string($cache[$hook]['preprocess functions'][$offset]) && str_starts_with($cache[$hook]['preprocess functions'][$offset], 'template_')) {
                $offset++;
            }
            array_splice($cache[$hook]['preprocess functions'], $offset, 0, $fixed_preprocess_functions);
        }
    }
}