From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- third_party/rust/uniffi_macros/src/object.rs | 35 ++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 third_party/rust/uniffi_macros/src/object.rs (limited to 'third_party/rust/uniffi_macros/src/object.rs') diff --git a/third_party/rust/uniffi_macros/src/object.rs b/third_party/rust/uniffi_macros/src/object.rs new file mode 100644 index 0000000000..2f4988530c --- /dev/null +++ b/third_party/rust/uniffi_macros/src/object.rs @@ -0,0 +1,35 @@ +use proc_macro2::{Ident, Span, TokenStream}; +use quote::quote; +use syn::DeriveInput; +use uniffi_meta::ObjectMetadata; + +use crate::util::{assert_type_eq, create_metadata_static_var}; + +pub fn expand_object(input: DeriveInput, module_path: Vec) -> TokenStream { + let ident = &input.ident; + let name = ident.to_string(); + let metadata = ObjectMetadata { module_path, name }; + let free_fn_ident = Ident::new(&metadata.free_ffi_symbol_name(), Span::call_site()); + let meta_static_var = create_metadata_static_var(ident, metadata.into()); + let type_assertion = assert_type_eq(ident, quote! { crate::uniffi_types::#ident }); + + quote! { + #[doc(hidden)] + #[no_mangle] + pub extern "C" fn #free_fn_ident( + ptr: *const ::std::ffi::c_void, + call_status: &mut ::uniffi::RustCallStatus + ) { + uniffi::call_with_output(call_status, || { + assert!(!ptr.is_null()); + let ptr = ptr.cast::<#ident>(); + unsafe { + ::std::sync::Arc::decrement_strong_count(ptr); + } + }); + } + + #meta_static_var + #type_assertion + } +} -- cgit v1.2.3