1 files changed, 113 insertions, 0 deletions
diff --git a/compiler/rustc_data_structures/src/lib.rs b/compiler/rustc_data_structures/src/lib.rs
new file mode 100644
index 000000000..265f45b72
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+++ b/compiler/rustc_data_structures/src/lib.rs
@@ -0,0 +1,113 @@
+//! Various data structures used by the Rust compiler. The intention
+//! is that code in here should be not be *specific* to rustc, so that
+//! it can be easily unit tested and so forth.
+//!
+//! # Note
+//!
+//! This API is completely unstable and subject to change.
+
+#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
+#![feature(array_windows)]
+#![feature(associated_type_bounds)]
+#![feature(auto_traits)]
+#![feature(cell_leak)]
+#![feature(control_flow_enum)]
+#![feature(extend_one)]
+#![feature(let_else)]
+#![feature(hash_raw_entry)]
+#![feature(hasher_prefixfree_extras)]
+#![feature(maybe_uninit_uninit_array)]
+#![feature(min_specialization)]
+#![feature(never_type)]
+#![feature(type_alias_impl_trait)]
+#![feature(new_uninit)]
+#![feature(once_cell)]
+#![feature(rustc_attrs)]
+#![feature(test)]
+#![feature(thread_id_value)]
+#![feature(vec_into_raw_parts)]
+#![allow(rustc::default_hash_types)]
+#![allow(rustc::potential_query_instability)]
+
+#[macro_use]
+extern crate tracing;
+#[macro_use]
+extern crate cfg_if;
+#[macro_use]
+extern crate rustc_macros;
+
+pub use rustc_index::static_assert_size;
+
+#[inline(never)]
+#[cold]
+pub fn cold_path<F: FnOnce() -> R, R>(f: F) -> R {
+    f()
+}
+
+pub mod base_n;
+pub mod binary_search_util;
+pub mod captures;
+pub mod flock;
+pub mod functor;
+pub mod fx;
+pub mod graph;
+pub mod intern;
+pub mod jobserver;
+pub mod macros;
+pub mod map_in_place;
+pub mod obligation_forest;
+pub mod owning_ref;
+pub mod sip128;
+pub mod small_c_str;
+pub mod small_str;
+pub mod snapshot_map;
+pub mod svh;
+pub use ena::snapshot_vec;
+pub mod memmap;
+pub mod sorted_map;
+#[macro_use]
+pub mod stable_hasher;
+mod atomic_ref;
+pub mod fingerprint;
+pub mod profiling;
+pub mod sharded;
+pub mod stack;
+pub mod sync;
+pub mod thin_vec;
+pub mod tiny_list;
+pub mod transitive_relation;
+pub mod vec_linked_list;
+pub mod vec_map;
+pub mod work_queue;
+pub use atomic_ref::AtomicRef;
+pub mod frozen;
+pub mod sso;
+pub mod steal;
+pub mod tagged_ptr;
+pub mod temp_dir;
+pub mod unhash;
+
+pub use ena::undo_log;
+pub use ena::unify;
+
+pub struct OnDrop<F: Fn()>(pub F);
+
+impl<F: Fn()> OnDrop<F> {
+    /// Forgets the function which prevents it from running.
+    /// Ensure that the function owns no memory, otherwise it will be leaked.
+    #[inline]
+    pub fn disable(self) {
+        std::mem::forget(self);
+    }
+}
+
+impl<F: Fn()> Drop for OnDrop<F> {
+    #[inline]
+    fn drop(&mut self) {
+        (self.0)();
+    }
+}
+
+// See comments in src/librustc_middle/lib.rs
+#[doc(hidden)]
+pub fn __noop_fix_for_27438() {}