Struct glib::object::ClassRef

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pub struct ClassRef<'a, T: IsClass>(_, _, _);
Expand description

Reference to the class struct of type T.

Methods from Deref<Target = Class<T>>§

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pub fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object class has a property property_name of the given type_.

If no type is provided then only the existence of the property is checked.

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pub fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object class.

This returns None if the property does not exist.

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pub fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Get the ParamSpec of the property property_name of this object class.

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pub fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object class.

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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.

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

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

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

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

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

Gets the parent class struct, if any.

Trait Implementations§

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

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

Formats the value using the given formatter. Read more
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impl<'a, T: IsClass> Deref for ClassRef<'a, T>

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type Target = Class<T>

The resulting type after dereferencing.
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fn deref(&self) -> &Class<T>

Dereferences the value.
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impl<'a, T: IsClass> Drop for ClassRef<'a, T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<'a, T: IsClass> Send for ClassRef<'a, T>

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

Auto Trait Implementations§

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impl<'a, T> RefUnwindSafe for ClassRef<'a, T>where <T as ObjectType>::GlibClassType: RefUnwindSafe,

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impl<'a, T> Unpin for ClassRef<'a, T>

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impl<'a, T> UnwindSafe for ClassRef<'a, T>where <T as ObjectType>::GlibClassType: RefUnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.