1 files changed, 18 insertions, 0 deletions
diff --git a/compiler/rustc_ast_passes/src/lib.rs b/compiler/rustc_ast_passes/src/lib.rs
new file mode 100644
index 000000000..9d52c3288
--- /dev/null
+++ b/compiler/rustc_ast_passes/src/lib.rs
@@ -0,0 +1,18 @@
+//! The `rustc_ast_passes` crate contains passes which validate the AST in `syntax`
+//! parsed by `rustc_parse` and then lowered, after the passes in this crate,
+//! by `rustc_ast_lowering`.
+//!
+//! The crate also contains other misc AST visitors, e.g. `node_count` and `show_span`.
+
+#![allow(rustc::potential_query_instability)]
+#![feature(box_patterns)]
+#![feature(if_let_guard)]
+#![feature(iter_is_partitioned)]
+#![feature(let_chains)]
+#![feature(let_else)]
+#![recursion_limit = "256"]
+
+pub mod ast_validation;
+pub mod feature_gate;
+pub mod node_count;
+pub mod show_span;