Support for `extern "C"`, `#[export_name = ...]` functions.
PiperOrigin-RevId: 486157245
diff --git a/cc_bindings_from_rs/test/functions/functions.rs b/cc_bindings_from_rs/test/functions/functions.rs
index f0aa52c..a4e76f9 100644
--- a/cc_bindings_from_rs/test/functions/functions.rs
+++ b/cc_bindings_from_rs/test/functions/functions.rs
@@ -5,6 +5,8 @@
//! This crate is used as a test input for `cc_bindings_from_rs` and the
//! generated C++ bindings are then tested via `functions_test.cc`.
+use std::sync::Mutex;
+
#[no_mangle]
pub extern "C" fn get_42_as_f64_via_no_mangle_extern_c() -> f64 {
42.0
@@ -19,3 +21,26 @@
pub extern "C" fn add_i32_via_no_mangle_extern_c(x: i32, y: i32) -> i32 {
x + y
}
+
+#[export_name = "custom_export_name_for_add_i32"]
+pub extern "C" fn add_i32_via_extern_c_with_export_name(x: i32, y: i32) -> i32 {
+ x + y
+}
+
+pub extern "C" fn add_i32_via_extern_c_with_mangling(x: i32, y: i32) -> i32 {
+ x + y
+}
+
+static G_I32: Mutex<i32> = Mutex::new(0);
+
+// Presence of the API below tests how bindings handle functions returning
+// `void`.
+#[export_name = "custom_export_name_for_get_global_i32"]
+pub extern "C" fn set_global_i32_via_extern_c_with_export_name(x: i32) {
+ *G_I32.lock().unwrap() = x;
+}
+
+#[no_mangle]
+pub extern "C" fn get_global_i32_via_extern_c_with_export_name() -> i32 {
+ *G_I32.lock().unwrap()
+}
