In rust-analyzer, we maintain a strict separation between pure abstract semantic project model and a concrete model of a particular build system.
Pure model is represented by the [base_db::CrateGraph] from another crate.
In this crate, we are concerned with "real world" project models.
Specifically, here we have a representation for a Cargo project
([CargoWorkspace]) and for manually specified layout ([ProjectJson]).
Roughly, the things we do here are:
- Project discovery (where's the relevant Cargo.toml for the current dir).
- Custom build steps (
build.rscode generation and compilation of procedural macros). - Lowering of concrete model to a [
base_db::CrateGraph]