Smaller workaround for the fact that some function are not exported

sixtyfps_runtime/corelib/abi/sharedarray.rs

@@ -190,14 +190,3 @@ pub unsafe extern "C" fn sixtyfps_shared_array_drop(out: *mut SharedArray<u8>) {
     // ?? This won't call drop on the right type...
     core::ptr::read(out);
 }
-
-/// Somehow this is required for the extern "C" things to be exported in a dependent dynlib
-#[doc(hidden)]
-pub fn dummy() {
-    #[derive(Clone)]
-    struct Foo;
-    foo(Foo);
-    fn foo(f: impl Clone) {
-        let _ = f.clone();
-    }
-}

sixtyfps_runtime/corelib/abi/signals.rs

@@ -112,14 +112,3 @@ pub unsafe extern "C" fn sixtyfps_signal_set_handler(
 pub unsafe extern "C" fn sixtyfps_signal_drop(handle: *mut SignalOpaque) {
     core::ptr::read(handle as *mut Signal<()>);
 }
-
-/// Somehow this is required for the extern "C" things to be exported in a dependent dynlib
-#[doc(hidden)]
-pub fn dummy() {
-    #[derive(Clone)]
-    struct Foo;
-    foo(Foo);
-    fn foo(f: impl Clone) {
-        let _ = f.clone();
-    }
-}

sixtyfps_runtime/corelib/abi/tests.rs

@@ -12,14 +12,3 @@ pub extern "C" fn sixtyfps_test_ellapse_time(time_in_ms: u64) {
         driver.update_animations(tick)
     })
 }
-
-/// Somehow this is required for the extern "C" things to be exported in a dependent dynlib
-#[doc(hidden)]
-pub fn dummy() {
-    #[derive(Clone)]
-    struct Foo;
-    foo(Foo);
-    fn foo(f: impl Clone) {
-        let _ = f.clone();
-    }
-}

sixtyfps_runtime/corelib/layout.rs

@@ -246,13 +246,3 @@ pub extern "C" fn solve_path_layout(data: &PathLayoutData) {
     }
 }
 
-/// Somehow this is required for the extern "C" things to be exported in a dependent dynlib
-#[doc(hidden)]
-pub fn dummy() {
-    #[derive(Clone)]
-    struct Foo;
-    foo(Foo);
-    fn foo(f: impl Clone) {
-        let _ = f.clone();
-    }
-}

sixtyfps_runtime/corelib/lib.rs

@@ -61,3 +61,15 @@ pub type ComponentRefPin<'a> = core::pin::Pin<abi::datastructures::ComponentRef<
 
 pub mod eventloop;
 mod item_rendering;
+
+/// One need to use at least one function in each module in order to get them
+/// exported in the final binary.
+/// This only use functions from modules which are not otherwise used.
+#[doc(hidden)]
+#[cold]
+pub fn use_modules() -> usize {
+    abi::tests::sixtyfps_test_ellapse_time as usize
+        + abi::signals::sixtyfps_signal_init as usize
+        + abi::sharedarray::sixtyfps_shared_array_drop as usize
+        + layout::solve_grid_layout as usize
+}

sixtyfps_runtime/rendering_backends/gl/lib.rs

@@ -730,3 +730,10 @@ pub fn create_gl_window() -> ComponentWindow {
         GLRenderer::new(&event_loop.get_winit_event_loop(), window_builder)
     }))
 }
+
+
+#[doc(hidden)]
+#[cold]
+pub fn use_modules() {
+    sixtyfps_corelib::use_modules();
+}