Problems with native class ArrayAccess as Interface

[jg-development]

When I try to reflect a class with arrayaccess interface it does not work:
https://github.com/docusign/docusign-esign-php-client/blob/master/src/Model/AccessCodeFormat.php

Roave\BetterReflection\Reflection\ReflectionClass "ArrayAccess" could not be found in the located source

[kukulich]

How do you set up BetterReflection?

[jg-development]

Cannot show you everything, but it was like this:

    public const string OLD_NAMESPACE = 'DocuSign\eSign\Model';

    public const string NEW_NAMESPACE = 'DocusignEsignatureClient\Structs';



        $finder
            ->in(__DIR__ . '/../../vendor/docusign/esign-client/src/Model')
            ->files()
            ->name('*.php')
            ->notName('*Interface.php')
            ->sortByName(true);

        $iterator = $finder->getIterator();
        $iterator->rewind();

        foreach ($iterator as $modelFile) {
            $classLoader = require __DIR__ . '/../../vendor/autoload.php';

            $astLocator = (new BetterReflection())->astLocator();
            $reflector = new DefaultReflector(new ComposerSourceLocator($classLoader, $astLocator));
            $class = $reflector->reflectClass(self::OLD_NAMESPACE . '\\' . $modelFile->getFilenameWithoutExtension());

            /** @var ReflectionProperty $swaggerTypeProperty */
            $swaggerTypeProperty = $class->getProperty('swaggerTypes');

            $swaggerTypes = $swaggerTypeProperty->getDefaultValue();

            $class = new ClassType($modelFile->getFilenameWithoutExtension());

            $namespace = new PhpNamespace(self::NEW_NAMESPACE);
            $namespace->add($class);
            $namespace->addUse(SerializedName::class);
    }

[Ocramius]

I think the composer source locator is not sufficient there: needs to be composed together with an internal classes source locator.