1 files changed, 23 insertions, 0 deletions
diff --git a/compiler/rustc_index/src/lib.rs b/compiler/rustc_index/src/lib.rs
new file mode 100644
index 000000000..33c3c536f
--- /dev/null
+++ b/compiler/rustc_index/src/lib.rs
@@ -0,0 +1,23 @@
+#![feature(allow_internal_unstable)]
+#![feature(bench_black_box)]
+#![feature(extend_one)]
+#![feature(let_else)]
+#![feature(min_specialization)]
+#![feature(new_uninit)]
+#![feature(step_trait)]
+#![feature(stmt_expr_attributes)]
+#![feature(test)]
+
+pub mod bit_set;
+pub mod interval;
+pub mod vec;
+
+pub use rustc_macros::newtype_index;
+
+/// Type size assertion. The first argument is a type and the second argument is its expected size.
+#[macro_export]
+macro_rules! static_assert_size {
+    ($ty:ty, $size:expr) => {
+        const _: [(); $size] = [(); ::std::mem::size_of::<$ty>()];
+    };
+}