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Callback

nightshade_api::web::prelude

Struct Callback

pub struct Callback<In, Out = ()>(/* private fields */)
where
    In: 'static,
    Out: 'static;

Expand description

Callbacks define a standard way to store functions and closures.

§Example

#[component]
fn MyComponent(
    #[prop(into)] render_number: Callback<(i32,), String>,
) -> impl IntoView {
    view! {
        <div>
            {render_number.run((42,))}
        </div>
    }
}

fn test() -> impl IntoView {
    view! {
        <MyComponent render_number=move |x: i32| x.to_string()/>
    }
}

Implementations§

impl<In, Out> Callback<In, Out>
where In: 'static, Out: 'static,

pub fn new<F>(fun: F) -> Callback<In, Out>
where F: Fn(In) -> Out + Send + Sync + 'static,

Creates a new callback from the given function.

pub fn matches(&self, other: &Callback<In, Out>) -> bool

Returns true if both callbacks wrap the same underlying function pointer.

Trait Implementations§

impl<In, Out> Callable<In, Out> for Callback<In, Out>

fn run(&self, input: In) -> Out

calls the callback with the specified argument.

impl<In, Out> Clone for Callback<In, Out>

fn clone(&self) -> Callback<In, Out>

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl<In, Out> Copy for Callback<In, Out>

impl<In, Out> Debug for Callback<In, Out>

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

Formats the value using the given formatter. Read more

impl<F, T, Out> From<F> for Callback<(), Out>
where F: Fn() -> T + Send + Sync + 'static, T: Into<Out> + 'static,

fn from(f: F) -> Callback<(), Out>

Converts to this type from the input type.

impl<F, P1, T, Out> From<F> for Callback<(P1,), Out>
where F: Fn(P1) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1,), Out>

Converts to this type from the input type.

impl<F, P1, P2, T, Out> From<F> for Callback<(P1, P2), Out>
where F: Fn(P1, P2) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, T, Out> From<F> for Callback<(P1, P2, P3), Out>
where F: Fn(P1, P2, P3) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2, P3), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, P4, T, Out> From<F> for Callback<(P1, P2, P3, P4), Out>
where F: Fn(P1, P2, P3, P4) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static, P4: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2, P3, P4), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, P4, P5, T, Out> From<F> for Callback<(P1, P2, P3, P4, P5), Out>
where F: Fn(P1, P2, P3, P4, P5) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static, P4: Send + Sync + 'static, P5: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2, P3, P4, P5), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, P4, P5, P6, T, Out> From<F> for Callback<(P1, P2, P3, P4, P5, P6), Out>
where F: Fn(P1, P2, P3, P4, P5, P6) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static, P4: Send + Sync + 'static, P5: Send + Sync + 'static, P6: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2, P3, P4, P5, P6), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, P4, P5, P6, P7, T, Out> From<F> for Callback<(P1, P2, P3, P4, P5, P6, P7), Out>
where F: Fn(P1, P2, P3, P4, P5, P6, P7) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static, P4: Send + Sync + 'static, P5: Send + Sync + 'static, P6: Send + Sync + 'static, P7: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2, P3, P4, P5, P6, P7), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, P4, P5, P6, P7, P8, T, Out> From<F> for Callback<(P1, P2, P3, P4, P5, P6, P7, P8), Out>
where F: Fn(P1, P2, P3, P4, P5, P6, P7, P8) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static, P4: Send + Sync + 'static, P5: Send + Sync + 'static, P6: Send + Sync + 'static, P7: Send + Sync + 'static, P8: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2, P3, P4, P5, P6, P7, P8), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, P4, P5, P6, P7, P8, P9, T, Out> From<F> for Callback<(P1, P2, P3, P4, P5, P6, P7, P8, P9), Out>
where F: Fn(P1, P2, P3, P4, P5, P6, P7, P8, P9) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static, P4: Send + Sync + 'static, P5: Send + Sync + 'static, P6: Send + Sync + 'static, P7: Send + Sync + 'static, P8: Send + Sync + 'static, P9: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2, P3, P4, P5, P6, P7, P8, P9), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, T, Out> From<F> for Callback<(P1, P2, P3, P4, P5, P6, P7, P8, P9, P10), Out>
where F: Fn(P1, P2, P3, P4, P5, P6, P7, P8, P9, P10) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static, P4: Send + Sync + 'static, P5: Send + Sync + 'static, P6: Send + Sync + 'static, P7: Send + Sync + 'static, P8: Send + Sync + 'static, P9: Send + Sync + 'static, P10: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2, P3, P4, P5, P6, P7, P8, P9, P10), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, T, Out> From<F> for Callback<(P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11), Out>
where F: Fn(P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static, P4: Send + Sync + 'static, P5: Send + Sync + 'static, P6: Send + Sync + 'static, P7: Send + Sync + 'static, P8: Send + Sync + 'static, P9: Send + Sync + 'static, P10: Send + Sync + 'static, P11: Send + Sync + 'static,

fn from(f: F) -> Callback<(P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11), Out>

Converts to this type from the input type.

impl<F, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, T, Out> From<F> for Callback<(P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12), Out>
where F: Fn(P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12) -> T + Send + Sync + 'static, T: Into<Out> + 'static, P1: Send + Sync + 'static, P2: Send + Sync + 'static, P3: Send + Sync + 'static, P4: Send + Sync + 'static, P5: Send + Sync + 'static, P6: Send + Sync + 'static, P7: Send + Sync + 'static, P8: Send + Sync + 'static, P9: Send + Sync + 'static, P10: Send + Sync + 'static, P11: Send + Sync + 'static, P12: Send + Sync + 'static,

fn from( f: F, ) -> Callback<(P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12), Out>

Converts to this type from the input type.

Auto Trait Implementations§

impl<In, Out> Freeze for Callback<In, Out>

impl<In, Out> RefUnwindSafe for Callback<In, Out>

impl<In, Out> Send for Callback<In, Out>

impl<In, Out> Sync for Callback<In, Out>

impl<In, Out> Unpin for Callback<In, Out>

impl<In, Out> UnsafeUnpin for Callback<In, Out>

impl<In, Out> UnwindSafe for Callback<In, Out>

Blanket Implementations§

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where T: 'static + ?Sized,

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Immutably borrows from an owned value. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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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.

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Converts Arc<Trait> (where Trait: DowncastSync) to Arc<Any>, which can then be downcast into Arc<ConcreteType> where ConcreteType implements Trait.

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