Vendor things

third-party/vendor/wasm-bindgen/tests/wasm/macro_rules.rs

@@ -0,0 +1,12 @@
+//! This tests that the `wasm_bindgen` macro produces code that compiles for this use case.
+//! `cargo test --target wasm32-unknown-unknown` will not run if this test breaks.
+use wasm_bindgen::prelude::*;
+
+macro_rules! my_export {
+    ($i: ident, $s: ty) => {
+        #[wasm_bindgen]
+        pub fn $i(_: $s) {}
+    };
+}
+
+my_export!(should_compile, &[i32]);