a6dd4d870a
The previous commit moved some code from `rustc_query_system`, which doesn't have access to `TyCtxt` and `QueryCtxt`, to `rustc_query_impl`, which does. We can now remove quite a bit of indirection. - Three methods in `trait QueryContext` are no longer needed (`next_job_id`, `current_query_job`, `start_query`). As a result, `QueryCtxt`'s trait impls of these methods are changed to inherent methods. - `qcx: Q::Qcx` parameters are simplified to `qcx: QueryCtxt<'tcx>`. - `*qcx.dep_context()` occurrences are simplified to `qcx.tcx`, and things like `qcx.dep_context().profiler()` become `qcx.tcx.prof`. - `DepGraphData<<Q::Qcx as HasDepContext>::Deps>` becomes `DepGraphData<DepsType>`. In short, various layers of indirection and abstraction are cut away. The resulting code is simpler, more concrete, and easier to understand. It's a good demonstration of the benefits of eliminating `rustc_query_system`, and there will be more to come. |
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This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
Why Rust?
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Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrated with other languages.
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Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.
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Productivity: Comprehensive documentation, a compiler committed to providing great diagnostics, and advanced tooling including package manager and build tool (Cargo), auto-formatter (rustfmt), linter (Clippy) and editor support (rust-analyzer).
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Read "Installation" from The Book.
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