RootAliasPackage

class \Composer\Package\BasePackage implements \Composer\Package\PackageInterface
- class \Composer\Package\AliasPackage extends \Composer\Package\BasePackage
  - class \Composer\Package\CompleteAliasPackage extends \Composer\Package\AliasPackage implements \Composer\Package\CompletePackageInterface
    - class \Composer\Package\RootAliasPackage extends \Composer\Package\CompleteAliasPackage implements \Composer\Package\RootPackageInterface
- class \Composer\Package\Package extends \Composer\Package\BasePackage