2 files changed, 32 insertions, 2 deletions
diff --git a/vendor/syn/tests/regression.rs b/vendor/syn/tests/regression.rs
index 8311a91bf..fb2b25c89 100644
--- a/vendor/syn/tests/regression.rs
+++ b/vendor/syn/tests/regression.rs
@@ -1,5 +1,3 @@
-#![allow(clippy::let_underscore_drop)]
-
 mod regression {
     automod::dir!("tests/regression");
 }
diff --git a/vendor/syn/tests/regression/issue1235.rs b/vendor/syn/tests/regression/issue1235.rs
new file mode 100644
index 000000000..883603066
--- /dev/null
+++ b/vendor/syn/tests/regression/issue1235.rs
@@ -0,0 +1,32 @@
+use proc_macro2::{Delimiter, Group};
+use quote::quote;
+
+#[test]
+fn main() {
+    // Okay. Rustc allows top-level `static` with no value syntactically, but
+    // not semantically. Syn parses as Item::Verbatim.
+    let tokens = quote! {
+        pub static FOO: usize;
+        pub static BAR: usize;
+    };
+    let file = syn::parse2::<syn::File>(tokens).unwrap();
+    println!("{:#?}", file);
+
+    // Okay.
+    let inner = Group::new(
+        Delimiter::None,
+        quote!(static FOO: usize = 0; pub static BAR: usize = 0),
+    );
+    let tokens = quote!(pub #inner;);
+    let file = syn::parse2::<syn::File>(tokens).unwrap();
+    println!("{:#?}", file);
+
+    // Formerly parser crash.
+    let inner = Group::new(
+        Delimiter::None,
+        quote!(static FOO: usize; pub static BAR: usize),
+    );
+    let tokens = quote!(pub #inner;);
+    let file = syn::parse2::<syn::File>(tokens).unwrap();
+    println!("{:#?}", file);
+}