interface(DirOp)
implementation(DirOp_ux)
interface(FileOp)
interface(FileOp_priv)
interface(FileOp_ux)
implementation(FileOp_ux)
interface(FileStamp)
interface(FileStamp_ux)
implementation(FileStamp_ux)
interface(PathName)
interface(PathName_ux)
implementation(PathName_ux)
