Struct maplibre::util::ChangeObserver

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pub struct ChangeObserver<T> {
    inner: T,
    reference_value: Option<T>,
}

Fields

inner: Treference_value: Option<T>

Implementations

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pub fn did_change(&self, epsilon: T::Epsilon) -> bool

Trait Implementations

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impl<T> Default for ChangeObserver<T> where
T: Default,

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fn default() -> Self

Returns the “default value” for a type. Read more

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impl<T> Deref for ChangeObserver<T>

type Target = T

The resulting type after dereferencing.

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fn deref(&self) -> &Self::Target

Dereferences the value.

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impl<T> DerefMut for ChangeObserver<T>

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

Auto Trait Implementations

impl<T> RefUnwindSafe for ChangeObserver<T> where
T: RefUnwindSafe,

impl<T> Send for ChangeObserver<T> where
T: Send,

impl<T> Sync for ChangeObserver<T> where
T: Sync,

impl<T> Unpin for ChangeObserver<T> where
T: Unpin,

impl<T> UnwindSafe for ChangeObserver<T> where
T: UnwindSafe,

Blanket Implementations

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> Downcast for T where
T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

impl<T> Downcast<T> for T

fn downcast(&self) -> &T

impl<T> DowncastSync for T where
T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more