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 #![feature(min_specialization)]
   5 #![feature(never_type)]
   6 #![feature(once_cell)]
   7 #![feature(rustc_attrs)]
   8 #![recursion_limit = "256"]
   9 #![allow(rustc::potential_query_instability)]
  10 #![deny(rustc::untranslatable_diagnostic)]
  11 #![deny(rustc::diagnostic_outside_of_impl)]
  12
  13 #[macro_use]
  14 extern crate rustc_macros;
  15 #[macro_use]
  16 extern crate rustc_middle;
  17
  18 use rustc_data_structures::sync::AtomicU64;
  19 use rustc_middle::arena::Arena;
  20 use rustc_middle::dep_graph::{self, DepKindStruct, SerializedDepNodeIndex};
  21 use rustc_middle::ty::query::{query_keys, query_storage, query_stored, query_values};
  22 use rustc_middle::ty::query::{ExternProviders, Providers, QueryEngine};
  23 use rustc_middle::ty::{self, TyCtxt};
  24 use rustc_span::def_id::{LocalDefId, LOCAL_CRATE};
  25 use rustc_span::Span;
  26
  27 #[macro_use]
  28 mod plumbing;
  29 pub use plumbing::QueryCtxt;
  30 use rustc_query_system::query::*;
  31 #[cfg(parallel_compiler)]
  32 pub use rustc_query_system::query::{deadlock, QueryContext};
  33
  34 mod keys;
  35 use keys::Key;
  36
  37 mod values;
  38 use self::values::Value;
  39
  40 pub use rustc_query_system::query::QueryConfig;
  41 pub(crate) use rustc_query_system::query::{QueryDescription, QueryVTable};
  42
  43 mod on_disk_cache;
  44 pub use on_disk_cache::OnDiskCache;
  45
  46 mod profiling_support;
  47 pub use self::profiling_support::alloc_self_profile_query_strings;
  48
  49 fn describe_as_module(def_id: LocalDefId, tcx: TyCtxt<'_>) -> String {
  50     if def_id.is_top_level_module() {
  51         "top-level module".to_string()
  52     } else {
  53         format!("module `{}`", tcx.def_path_str(def_id.to_def_id()))
  54     }
  55 }
  56
  57 rustc_query_append! { define_queries! }
  58
  59 impl<'tcx> Queries<'tcx> {
  60     // Force codegen in the dyn-trait transformation in this crate.
  61     pub fn as_dyn(&'tcx self) -> &'tcx dyn QueryEngine<'tcx> {
  62         self
  63     }
  64 }