Struct glib::object::ClassRef

pub fn type_(&self) -> Type

Get the type id for this class.

This is not equivalent to T::static_type() but is the type of the subclass of T where this class belongs to.

pub fn upcast_ref<U: IsClass>(&self) -> &Class
where T: IsA,

Casts this class to a reference to a parent type’s class.

pub fn downcast_ref<U: IsClass + IsA<T>>(&self) -> Option<&Class>

Casts this class to a reference to a child type’s class or fails if this class is not implementing the child class.

pub fn parent(&self) -> Option<ClassRef<'_, T>>

Gets the parent class struct, if any.

Trait Implementations§

impl<'a, T: Debug + IsClass> Debug for ClassRef<'a, T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl<'a, T: IsClass> Deref for ClassRef<'a, T>

type Target = Class<T>

The resulting type after dereferencing.

fn deref(&self) -> &Class<T>

Dereferences the value.

impl<'a, T: IsClass> Drop for ClassRef<'a, T>

fn drop(&mut self)

Executes the destructor for this type. Read more

impl<'a, T: IsClass> Send for ClassRef<'a, T>

impl<'a, T: IsClass> Sync for ClassRef<'a, T>

Auto Trait Implementations§

impl<'a, T> Freeze for ClassRef<'a, T>
where T: ObjectType + IntoGlibPtr<mut <T as ObjectType>::GlibType> + for<'a> ToGlibPtr<'a, mut <T as ObjectType>::GlibType> + FromValueOptional<'static> + FromValueOptionalSealed<'static> + ToValueOptional + ToValue + ValueType + for<'a> FromValue<'a> + Hash + Ord + PartialOrd + Eq + PartialEq + Clone + Debug + StaticType + Into<ObjectRef> + UnsafeFrom<ObjectRef> + 'static,

impl<'a, T> RefUnwindSafe for ClassRef<'a, T>
where T: ObjectType + IntoGlibPtr<mut <T as ObjectType>::GlibType> + for<'a> ToGlibPtr<'a, mut <T as ObjectType>::GlibType> + FromValueOptional<'static> + FromValueOptionalSealed<'static> + ToValueOptional + ToValue + ValueType + for<'a> FromValue<'a> + Hash + Ord + PartialOrd + Eq + PartialEq + Clone + Debug + StaticType + Into<ObjectRef> + UnsafeFrom<ObjectRef> + 'static, <T as ObjectType>::GlibClassType: RefUnwindSafe,

impl<'a, T> Unpin for ClassRef<'a, T>
where T: ObjectType + IntoGlibPtr<mut <T as ObjectType>::GlibType> + for<'a> ToGlibPtr<'a, mut <T as ObjectType>::GlibType> + FromValueOptional<'static> + FromValueOptionalSealed<'static> + ToValueOptional + ToValue + ValueType + for<'a> FromValue<'a> + Hash + Ord + PartialOrd + Eq + PartialEq + Clone + Debug + StaticType + Into<ObjectRef> + UnsafeFrom<ObjectRef> + 'static,

impl<'a, T> UnwindSafe for ClassRef<'a, T>
where T: ObjectType + IntoGlibPtr<mut <T as ObjectType>::GlibType> + for<'a> ToGlibPtr<'a, mut <T as ObjectType>::GlibType> + FromValueOptional<'static> + FromValueOptionalSealed<'static> + ToValueOptional + ToValue + ValueType + for<'a> FromValue<'a> + Hash + Ord + PartialOrd + Eq + PartialEq + Clone + Debug + StaticType + Into<ObjectRef> + UnsafeFrom<ObjectRef> + 'static, <T as ObjectType>::GlibClassType: RefUnwindSafe,

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> TryFrom for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for T
where U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.