protected function validateClassConstFetchExpression(ClassConstFetch $stmt)
    {
        // For PHP Parser 4.x
        $constName = $stmt->name instanceof Identifier ? $stmt->name->toString() : $stmt->name;

        // give the `class` pseudo-constant a pass
        if ($constName === 'class') {
            return;
        }

        // if class name is an expression, give it a pass for now
        if (!$stmt->class instanceof Expr) {
            $className = $this->getFullyQualifiedName($stmt->class);

            // if the class doesn't exist, don't throw an exception… it might be
            // defined in the same line it's used or something stupid like that.
            if (\class_exists($className) || \interface_exists($className)) {
                $refl = new \ReflectionClass($className);
                if (!$refl->hasConstant($constName)) {
                    $constType = \class_exists($className) ? 'Class' : 'Interface';
                    $msg = \sprintf('%s constant \'%s::%s\' not found', $constType, $className, $constName);
                    throw new FatalErrorException($msg, 0, E_ERROR, null, $stmt->getLine());
                }
            }
        }
    }