glib: VariantType::new_maybe

Author: arcnmx

glib/src/variant.rs

@@ -1239,10 +1239,7 @@ impl ToVariant for std::ffi::OsStr {
 
 impl<T: StaticVariantType> StaticVariantType for Option<T> {
     fn static_variant_type() -> Cow<'static, VariantTy> {
-        unsafe {
-            let ptr = ffi::g_variant_type_new_maybe(T::static_variant_type().to_glib_none().0);
-            Cow::Owned(from_glib_full(ptr))
-        }
+        Cow::Owned(VariantType::new_maybe(&T::static_variant_type()))
     }
 }
 

glib/src/variant_type.rs

@@ -57,6 +57,13 @@ impl VariantType {
         unsafe { from_glib_full(ffi::g_variant_type_new_array(elem_type.to_glib_none().0)) }
     }
 
+    // rustdoc-stripper-ignore-next
+    /// Creates a `VariantType` from a maybe element type.
+    #[doc(alias = "g_variant_type_new_maybe")]
+    pub fn new_maybe(child_type: &VariantTy) -> VariantType {
+        unsafe { from_glib_full(ffi::g_variant_type_new_maybe(child_type.to_glib_none().0)) }
+    }
+
     // rustdoc-stripper-ignore-next
     /// Tries to create a `VariantType` from an owned string.
     ///