Package example

/** * Get the second part of the regular expression to check for support of a * package type */
    protected function getLocationPattern(string $frameworkType): string
    {
        $pattern = null;
        if (!empty($this->supportedTypes[$frameworkType])) {
            $frameworkClass = 'Composer\\Installers\\' . $this->supportedTypes[$frameworkType];
            /** @var BaseInstaller $framework */
            $framework = new $frameworkClass(new Package('dummy/pkg', '1.0.0.0', '1.0.0'), $this->composer, $this->getIO());
            $locations = array_keys($framework->getLocations($frameworkType));
            if ($locations) {
                $pattern = '(' . implode('|', $locations) . ')';
            }
        }

        return $pattern ?: '(\w+)';
    }

    private function getIO(): IOInterface
    {