compiler/rustc_query_impl/src/lib.rs

   1 //! Support for serializing the dep-graph and reloading it.
   2
   3 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
   4 // this shouldn't be necessary, but the check for `&mut _` is too naive and denies returning a function pointer that takes a mut ref
   5 #![feature(const_mut_refs)]
   6 #![feature(min_specialization)]
   7 #![feature(never_type)]
   8 #![feature(once_cell)]
   9 #![feature(rustc_attrs)]
  10 #![recursion_limit = "256"]
  11 #![allow(rustc::potential_query_instability)]
  12 #![deny(rustc::untranslatable_diagnostic)]
  13 #![deny(rustc::diagnostic_outside_of_impl)]
  14
  15 #[macro_use]
  16 extern crate rustc_macros;
  17 #[macro_use]
  18 extern crate rustc_middle;
  19
  20 use rustc_data_structures::sync::AtomicU64;
  21 use rustc_middle::arena::Arena;
  22 use rustc_middle::dep_graph::{self, DepKindStruct};
  23 use rustc_middle::ty::query::{query_keys, query_storage, query_stored, query_values};
  24 use rustc_middle::ty::query::{ExternProviders, Providers, QueryEngine};
  25 use rustc_middle::ty::TyCtxt;
  26 use rustc_span::Span;
  27
  28 #[macro_use]
  29 mod plumbing;
  30 pub use plumbing::QueryCtxt;
  31 use rustc_query_system::query::*;
  32 #[cfg(parallel_compiler)]
  33 pub use rustc_query_system::query::{deadlock, QueryContext};
  34
  35 mod keys;
  36 use keys::Key;
  37
  38 pub use rustc_query_system::query::QueryConfig;
  39 pub(crate) use rustc_query_system::query::QueryVTable;
  40
  41 mod on_disk_cache;
  42 pub use on_disk_cache::OnDiskCache;
  43
  44 mod profiling_support;
  45 pub use self::profiling_support::alloc_self_profile_query_strings;
  46
  47 rustc_query_append! { define_queries! }
  48
  49 impl<'tcx> Queries<'tcx> {
  50     // Force codegen in the dyn-trait transformation in this crate.
  51     pub fn as_dyn(&'tcx self) -> &'tcx dyn QueryEngine<'tcx> {
  52         self
  53     }
  54 }