//! Re-exports various subcrates databases so that the calling code can depend
//! only on `hir`. This breaks abstraction boundary a bit, it would be cool if
//! we didn't do that.
//!
//! But we need this for at least LRU caching at the query level.
pub use hir_def::db::DefDatabase;
pub use hir_expand::db::ExpandDatabase;
pub use hir_ty::db::HirDatabase;