1 files changed, 37 insertions, 0 deletions
diff --git a/vendor/rustix/src/static_assertions.rs b/vendor/rustix/src/static_assertions.rs
new file mode 100644
index 000000000..81824cb1c
--- /dev/null
+++ b/vendor/rustix/src/static_assertions.rs
@@ -0,0 +1,37 @@
+//! Workarounds for Rust 1.63 where some things in the `static_assertions`
+//! crate do things that don't work in const contexts. We want to call them
+//! in const contexts in Rust versions where that's supported so that
+//! problems are caught at compile time, and fall back to dynamic asserts
+//! in Rust 1.63.
+
+#![allow(unused_macros)]
+
+macro_rules! assert_eq_size {
+    ($x:ty, $y:ty) => {
+        assert_eq!(core::mem::size_of::<$x>(), core::mem::size_of::<$y>());
+    };
+}
+
+macro_rules! assert_eq_align {
+    ($x:ty, $y:ty) => {
+        assert_eq!(core::mem::align_of::<$x>(), core::mem::align_of::<$y>());
+    };
+}
+
+macro_rules! const_assert_eq {
+    ($x:expr, $y:expr) => {
+        assert_eq!($x, $y);
+    };
+}
+
+macro_rules! const_assert_ne {
+    ($x:expr, $y:expr) => {
+        assert_ne!($x, $y);
+    };
+}
+
+macro_rules! const_assert {
+    ($x:expr) => {
+        assert!($x);
+    };
+}