Support for `decltype(auto)` (e.g. in function return types).
PiperOrigin-RevId: 449005422
diff --git a/rs_bindings_from_cc/ir_from_cc_test.rs b/rs_bindings_from_cc/ir_from_cc_test.rs
index 35b5db6..d978e75 100644
--- a/rs_bindings_from_cc/ir_from_cc_test.rs
+++ b/rs_bindings_from_cc/ir_from_cc_test.rs
@@ -1084,6 +1084,30 @@
Ok(())
}
+fn test_template_with_decltype_and_with_auto() -> Result<()> {
+ let ir = ir_from_cc(
+ r#" #pragma clang lifetime_elision
+ template <typename T1, typename T2>
+ struct MyTemplate {
+ static decltype(auto) TemplatedAdd(T1 a, T2 b) { return a + b; }
+ };
+ using MyAlias = MyTemplate<unsigned int, long long>; "#,
+ )?;
+ assert_ir_matches!(
+ ir,
+ quote! {
+ Func {
+ name: "TemplatedAdd", ...
+ return_type: MappedType {
+ rs_type: RsType { name: Some("i64"), ... },
+ cc_type: CcType { name: Some("long long"), ... },
+ }, ...
+ }
+ }
+ );
+ Ok(())
+}
+
#[test]
fn test_subst_template_type_parm_type_vs_const_when_non_const_template_param() -> Result<()> {
// This test (and
