1 files changed, 63 insertions, 0 deletions
diff --git a/compiler/rustc_query_impl/src/lib.rs b/compiler/rustc_query_impl/src/lib.rs
new file mode 100644
index 000000000..eda61df77
--- /dev/null
+++ b/compiler/rustc_query_impl/src/lib.rs
@@ -0,0 +1,63 @@
+//! Support for serializing the dep-graph and reloading it.
+
+#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
+#![feature(min_specialization)]
+#![feature(never_type)]
+#![feature(once_cell)]
+#![feature(rustc_attrs)]
+#![recursion_limit = "256"]
+#![allow(rustc::potential_query_instability)]
+
+#[macro_use]
+extern crate rustc_macros;
+#[macro_use]
+extern crate rustc_middle;
+
+use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
+use rustc_data_structures::sync::AtomicU64;
+use rustc_middle::arena::Arena;
+use rustc_middle::dep_graph::{self, DepKindStruct, SerializedDepNodeIndex};
+use rustc_middle::ty::query::{query_keys, query_storage, query_stored, query_values};
+use rustc_middle::ty::query::{ExternProviders, Providers, QueryEngine};
+use rustc_middle::ty::{self, TyCtxt};
+use rustc_span::def_id::{LocalDefId, LOCAL_CRATE};
+use rustc_span::Span;
+
+#[macro_use]
+mod plumbing;
+pub use plumbing::QueryCtxt;
+use rustc_query_system::query::*;
+#[cfg(parallel_compiler)]
+pub use rustc_query_system::query::{deadlock, QueryContext};
+
+mod keys;
+use keys::Key;
+
+mod values;
+use self::values::Value;
+
+pub use rustc_query_system::query::QueryConfig;
+pub(crate) use rustc_query_system::query::{QueryDescription, QueryVTable};
+
+mod on_disk_cache;
+pub use on_disk_cache::OnDiskCache;
+
+mod profiling_support;
+pub use self::profiling_support::alloc_self_profile_query_strings;
+
+fn describe_as_module(def_id: LocalDefId, tcx: TyCtxt<'_>) -> String {
+    if def_id.is_top_level_module() {
+        "top-level module".to_string()
+    } else {
+        format!("module `{}`", tcx.def_path_str(def_id.to_def_id()))
+    }
+}
+
+rustc_query_append! { [define_queries!][<'tcx>] }
+
+impl<'tcx> Queries<'tcx> {
+    // Force codegen in the dyn-trait transformation in this crate.
+    pub fn as_dyn(&'tcx self) -> &'tcx dyn QueryEngine<'tcx> {
+        self
+    }
+}