Method getCallerInfo

/**
 * Determine who called Language or Text.
 *
 * @return  array  Caller information.
 *
 * @since   1.7.0
 */
protected function getCallerInfo()
{
    // Try to determine the source if none was provided
    if (!\function_exists('debug_backtrace')) {
        return;
    }
    $backtrace = debug_backtrace();
    $info = array();
    // Search through the backtrace to our caller
    $continue = true;
    while ($continue && next($backtrace)) {
        $step = current($backtrace);
        $class = @$step['class'];
        // We're looking for something outside of language.php
        if ($class != self::class && $class != Text::class) {
            $info['function'] = @$step['function'];
            $info['class'] = $class;
            $info['step'] = prev($backtrace);
            // Determine the file and name of the file
            $info['file'] = @$step['file'];
            $info['line'] = @$step['line'];
            $continue = false;
        }
    }
    return $info;
}