Delete private Box default constructor
diff --git a/macro/src/expand.rs b/macro/src/expand.rs
index 2730b20..4a17161 100644
--- a/macro/src/expand.rs
+++ b/macro/src/expand.rs
@@ -951,11 +951,11 @@
fn expand_rust_box(ident: &RustName, types: &Types) -> TokenStream {
let link_prefix = format!("cxxbridge1$box${}$", types.resolve(ident).to_symbol());
- let link_uninit = format!("{}uninit", link_prefix);
+ let link_alloc = format!("{}alloc", link_prefix);
let link_drop = format!("{}drop", link_prefix);
let local_prefix = format_ident!("{}__box_", &ident.rust);
- let local_uninit = format_ident!("{}uninit", local_prefix);
+ let local_alloc = format_ident!("{}alloc", local_prefix);
let local_drop = format_ident!("{}drop", local_prefix);
let span = ident.span();
@@ -963,14 +963,9 @@
#[doc(hidden)]
unsafe impl ::cxx::private::ImplBox for #ident {}
#[doc(hidden)]
- #[export_name = #link_uninit]
- unsafe extern "C" fn #local_uninit(
- this: *mut ::std::boxed::Box<::std::mem::MaybeUninit<#ident>>,
- ) {
- ::std::ptr::write(
- this,
- ::std::boxed::Box::new(::std::mem::MaybeUninit::uninit()),
- );
+ #[export_name = #link_alloc]
+ unsafe extern "C" fn #local_alloc() -> *mut ::std::mem::MaybeUninit<#ident> {
+ ::std::boxed::Box::into_raw(::std::boxed::Box::new(::std::mem::MaybeUninit::uninit()))
}
#[doc(hidden)]
#[export_name = #link_drop]