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Diffstat (limited to 'compiler/rustc_middle/src/middle/dependency_format.rs')
| -rw-r--r-- | compiler/rustc_middle/src/middle/dependency_format.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/compiler/rustc_middle/src/middle/dependency_format.rs b/compiler/rustc_middle/src/middle/dependency_format.rs new file mode 100644 index 000000000..e079843bf --- /dev/null +++ b/compiler/rustc_middle/src/middle/dependency_format.rs @@ -0,0 +1,28 @@ +//! 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, +} |