| //! Type definitions for learning about the dependency formats of all upstream |
| //! crates (rlibs/dylibs/oh my). |
| //! |
| //! For all the gory details, see the provider of the `dependency_formats` |
| //! query. |
| |
| use rustc_session::config::CrateType; |
| |
| /// A list of dependencies for a certain crate type. |
| /// |
| /// The length of this vector is the same as the number of external crates used. |
| /// The value is None if the crate does not need to be linked (it was found |
| /// statically in another dylib), or Some(kind) if it needs to be linked as |
| /// `kind` (either static or dynamic). |
| pub type DependencyList = Vec<Linkage>; |
| |
| /// A mapping of all required dependencies for a particular flavor of output. |
| /// |
| /// This is local to the tcx, and is generally relevant to one session. |
| pub type Dependencies = Vec<(CrateType, DependencyList)>; |
| |
| #[derive(Copy, Clone, PartialEq, Debug, HashStable, Encodable, Decodable)] |
| pub enum Linkage { |
| NotLinked, |
| IncludedFromDylib, |
| Static, |
| Dynamic, |
| } |
