commit e6d5021522cb675897afdf627f7cc25b3fea471e
author David Tolnay <dtolnay@gmail.com> Sat Apr 25 15:38:23 2020 -0700
committer David Tolnay <dtolnay@gmail.com> Sat Apr 25 18:02:18 2020 -0700
tree 2f0ec3a02947fbdb5c4a2f653a5ab13132952c2b
parent b41e74c152d6debf883541a94fb9f29e71e43fec

Fix expansion of Rust Vec in extern signatures

macro/src/expand.rs

diff --git a/macro/src/expand.rs b/macro/src/expand.rs
index e3ab530..cda77db 100644
--- a/macro/src/expand.rs
+++ b/macro/src/expand.rs
@@ -746,7 +746,10 @@
             let inner = expand_extern_type(&ty.inner);
             quote!(*mut #inner)
         }
-        Type::RustVec(ty) => quote!(::cxx::private::RustVec<#ty>),
+        Type::RustVec(ty) => {
+            let elem = expand_extern_type(&ty.inner);
+            quote!(::cxx::private::RustVec<#elem>)
+        }
         Type::Ref(ty) => match &ty.inner {
             Type::Ident(ident) if ident == RustString => quote!(&::cxx::private::RustString),
             Type::RustVec(ty) => {