Fix gio::FileEnumeratorExt::close(): return value does not indicate success or error

Signed-off-by: fbrouille <[email protected]>

Author: fbrouille

gio/Gir.toml

@@ -891,6 +891,12 @@ manual_traits = ["FileEnumeratorExtManual"]
     name = "iterate"
     # better with rust iterators
     ignore = true
+    [[object.function]]
+    name = "close"
+        [object.function.return]
+        # Return value does not indicate success or error: despite the documentation, this function could return TRUE and an error in same time.
+        # see https://gitlab.gnome.org/GNOME/glib/-/blob/dc6f9447cd2a01012731422afed6facff1eea81a/gio/gfileenumerator.c#L290-297
+        use_return_for_result = true
 
 [[object]]
 name = "Gio.FileInfo"

gio/src/auto/file_enumerator.rs

@@ -21,17 +21,16 @@ impl FileEnumerator {
 
 pub trait FileEnumeratorExt: IsA<FileEnumerator> + 'static {
     #[doc(alias = "g_file_enumerator_close")]
-    fn close(&self, cancellable: Option<&impl IsA<Cancellable>>) -> Result<(), glib::Error> {
+    fn close(&self, cancellable: Option<&impl IsA<Cancellable>>) -> Result<bool, glib::Error> {
         unsafe {
             let mut error = std::ptr::null_mut();
-            let is_ok = ffi::g_file_enumerator_close(
+            let ret = ffi::g_file_enumerator_close(
                 self.as_ref().to_glib_none().0,
                 cancellable.map(|p| p.as_ref()).to_glib_none().0,
                 &mut error,
             );
-            debug_assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
             if error.is_null() {
-                Ok(())
+                Ok(from_glib(ret))
             } else {
                 Err(from_glib_full(error))
             }