magento-test/lib/internal/Magento/Framework/Component/README.md

Component

Component library provides feature for components (modules/themes/languages/libraries) to load from any custom directory like vendor.

• Modules should be registered using

ComponentRegistrar::register(ComponentRegistrar::MODULE, '<module name>', __DIR__);

• Themes should be registered using

ComponentRegistrar::register(ComponentRegistrar::THEME, '<theme name>', __DIR__);

• Languages should be registered using

ComponentRegistrar::register(ComponentRegistrar::LANGUAGE, '<language name>', __DIR__);

• Libraries should be registered using

ComponentRegistrar::register(ComponentRegistrar::LIBRARY, '<library name>', __DIR__);