// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. //! The "main crate" of the Rust compiler. This crate contains common //! type definitions that are used by the other crates in the rustc //! "family". Some prominent examples (note that each of these modules //! has their own README with further details). //! //! - **HIR.** The "high-level (H) intermediate representation (IR)" is //! defined in the `hir` module. //! - **MIR.** The "mid-level (M) intermediate representation (IR)" is //! defined in the `mir` module. This module contains only the //! *definition* of the MIR; the passes that transform and operate //! on MIR are found in `librustc_mir` crate. //! - **Types.** The internal representation of types used in rustc is //! defined in the `ty` module. This includes the **type context** //! (or `tcx`), which is the central context during most of //! compilation, containing the interners and other things. //! - **Traits.** Trait resolution is implemented in the `traits` module. //! - **Type inference.** The type inference code can be found in the `infer` module; //! this code handles low-level equality and subtyping operations. The //! type check pass in the compiler is found in the `librustc_typeck` crate. //! //! For more information about how rustc works, see the [rustc guide]. //! //! [rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/ //! //! # Note //! //! This API is completely unstable and subject to change. #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png", html_favicon_url = "https://doc.rust-lang.org/favicon.ico", html_root_url = "https://doc.rust-lang.org/nightly/")] #![feature(box_patterns)] #![feature(box_syntax)] #![cfg_attr(stage0, feature(const_fn))] #![cfg_attr(not(stage0), feature(min_const_fn))] #![feature(core_intrinsics)] #![feature(drain_filter)] #![cfg_attr(windows, feature(libc))] #![cfg_attr(stage0, feature(macro_vis_matcher))] #![feature(never_type)] #![feature(exhaustive_patterns)] #![feature(extern_types)] #![cfg_attr(not(stage0), feature(nll))] #![cfg_attr(not(stage0), feature(infer_outlives_requirements))] #![feature(non_exhaustive)] #![feature(proc_macro_internals)] #![feature(quote)] #![feature(optin_builtin_traits)] #![feature(refcell_replace_swap)] #![feature(rustc_diagnostic_macros)] #![feature(slice_patterns)] #![feature(slice_sort_by_cached_key)] #![feature(specialization)] #![feature(unboxed_closures)] #![feature(trace_macros)] #![feature(trusted_len)] #![feature(vec_remove_item)] #![feature(step_trait)] #![feature(integer_atomics)] #![feature(test)] #![cfg_attr(not(stage0), feature(impl_header_lifetime_elision))] #![feature(in_band_lifetimes)] #![feature(macro_at_most_once_rep)] #![feature(crate_in_paths)] #![feature(crate_visibility_modifier)] #![recursion_limit="512"] extern crate arena; #[macro_use] extern crate bitflags; extern crate core; extern crate fmt_macros; extern crate getopts; extern crate graphviz; #[macro_use] extern crate lazy_static; #[macro_use] extern crate scoped_tls; #[cfg(windows)] extern crate libc; extern crate polonius_engine; extern crate rustc_target; #[macro_use] extern crate rustc_data_structures; extern crate serialize; extern crate parking_lot; extern crate rustc_errors as errors; extern crate rustc_rayon as rayon; extern crate rustc_rayon_core as rayon_core; #[macro_use] extern crate log; #[macro_use] extern crate syntax; extern crate syntax_pos; extern crate jobserver; extern crate proc_macro; extern crate chalk_engine; extern crate rustc_fs_util; extern crate serialize as rustc_serialize; // used by deriving extern crate rustc_apfloat; extern crate byteorder; extern crate backtrace; #[macro_use] extern crate smallvec; // Note that librustc doesn't actually depend on these crates, see the note in // `Cargo.toml` for this crate about why these are here. #[allow(unused_extern_crates)] extern crate flate2; #[allow(unused_extern_crates)] extern crate test; #[macro_use] mod macros; // NB: This module needs to be declared first so diagnostics are // registered before they are used. pub mod diagnostics; pub mod cfg; pub mod dep_graph; pub mod hir; pub mod ich; pub mod infer; pub mod lint; pub mod middle { pub mod allocator; pub mod borrowck; pub mod expr_use_visitor; pub mod cstore; pub mod dead; pub mod dependency_format; pub mod entry; pub mod exported_symbols; pub mod free_region; pub mod intrinsicck; pub mod lib_features; pub mod lang_items; pub mod liveness; pub mod mem_categorization; pub mod privacy; pub mod reachable; pub mod region; pub mod recursion_limit; pub mod resolve_lifetime; pub mod stability; pub mod weak_lang_items; } pub mod mir; pub mod session; pub mod traits; pub mod ty; pub mod util { pub mod captures; pub mod common; pub mod ppaux; pub mod nodemap; pub mod time_graph; pub mod profiling; pub mod bug; } // A private module so that macro-expanded idents like // `::rustc::lint::Lint` will also work in `rustc` itself. // // `libstd` uses the same trick. #[doc(hidden)] mod rustc { pub use lint; } // FIXME(#27438): right now the unit tests of librustc don't refer to any actual // functions generated in librustc_data_structures (all // references are through generic functions), but statics are // referenced from time to time. Due to this bug we won't // actually correctly link in the statics unless we also // reference a function, so be sure to reference a dummy // function. #[test] fn noop() { rustc_data_structures::__noop_fix_for_27438(); } // Build the diagnostics array at the end so that the metadata includes error use sites. __build_diagnostic_array! { librustc, DIAGNOSTICS }