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Emit lifetimes into extern Rust type's trait impls

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This commit is contained in:
David Tolnay 2021-01-02 23:46:54 -08:00
parent 42883ac16b
commit 78c8ae037a
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1 changed files with 3 additions and 2 deletions
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5
macro/src/expand.rs
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@ -677,11 +677,12 @@ fn expand_rust_type_import(ety: &ExternType) -> TokenStream {
fn expand_rust_type_impl(ety: &ExternType) -> TokenStream {
let ident = &ety.name.rust;
let generics = &ety.generics;
let span = ident.span();
let unsafe_impl = quote_spanned!(ety.type_token.span=> unsafe impl);
let mut impls = quote_spanned! {span=>
#unsafe_impl ::cxx::private::RustType for #ident {}
#unsafe_impl #generics ::cxx::private::RustType for #ident #generics {}
};
for derive in &ety.derives {
@ -689,7 +690,7 @@ fn expand_rust_type_impl(ety: &ExternType) -> TokenStream {
let type_id = type_id(&ety.name);
let span = derive.span;
impls.extend(quote_spanned! {span=>
unsafe impl ::cxx::ExternType for #ident {
unsafe impl #generics ::cxx::ExternType for #ident #generics {
type Id = #type_id;
type Kind = ::cxx::kind::Opaque;
}