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gstreamer: Fix downcast_ref() / downcast_mut() impls on MiniObjectRef

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They have to return the `Ref` type and not the owned type.
This commit is contained in:
Sebastian Dröge 2022-02-16 12:13:19 +02:00
parent a1fed48e8c
commit d68c359db5
1 changed files with 4 additions and 4 deletions
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8
gstreamer/src/miniobject.rs
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@ -574,17 +574,17 @@ impl MiniObjectRef {
unsafe { from_glib((*self.as_ptr()).type_) } unsafe { from_glib((*self.as_ptr()).type_) }
} }
pub fn downcast_ref<T: IsMiniObject + glib::StaticType>(&self) -> Option<&T> { pub fn downcast_ref<T: IsMiniObject + glib::StaticType>(&self) -> Option<&T::RefType> {
if self.type_().is_a(T::static_type()) { if self.type_().is_a(T::static_type()) {
unsafe { Some(&*(self as *const Self as *const T)) } unsafe { Some(&*(self as *const Self as *const T::RefType)) }
} else { } else {
None None
} }
} }
pub fn downcast_mut<T: IsMiniObject + glib::StaticType>(&mut self) -> Option<&mut T> { pub fn downcast_mut<T: IsMiniObject + glib::StaticType>(&mut self) -> Option<&mut T::RefType> {
if self.type_().is_a(T::static_type()) { if self.type_().is_a(T::static_type()) {
unsafe { Some(&mut *(self as *mut Self as *mut T)) } unsafe { Some(&mut *(self as *mut Self as *mut T::RefType)) }
} else { } else {
None None
} }