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Callback

Struct Callback 

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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()/>
    }
}

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

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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.

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

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

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

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fn try_run(&self, input: In) -> Option<Out>

calls the callback with the specified argument. Read more
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fn run(&self, input: In) -> Out

calls the callback with the specified argument. Read more
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impl<In, Out> Clone for Callback<In, Out>

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

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<In, Out> Debug for Callback<In, Out>

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

Formats the value using the given formatter. Read more
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impl<In, Out> Dispose for Callback<In, Out>

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fn dispose(self)

Disposes of the signal. This: Read more
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impl<F, T, Out> From<F> for Callback<(), Out>
where F: Fn() -> T + Send + Sync + 'static, T: Into<Out> + 'static,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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

Converts to this type from the input type.
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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,

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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.
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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,

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

Auto Trait Implementations§

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

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

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

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

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

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

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,

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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 T
where 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> CloneToUninit for T
where T: Clone,

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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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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<E, T, Request, Encoding> FromReq<Patch<Encoding>, Request, E> for T
where Request: Req<E> + Send + 'static, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_req(req: Request) -> Result<T, E>

Attempts to deserialize the arguments from a request.
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impl<E, T, Request, Encoding> FromReq<Post<Encoding>, Request, E> for T
where Request: Req<E> + Send + 'static, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_req(req: Request) -> Result<T, E>

Attempts to deserialize the arguments from a request.
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impl<E, T, Request, Encoding> FromReq<Put<Encoding>, Request, E> for T
where Request: Req<E> + Send + 'static, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_req(req: Request) -> Result<T, E>

Attempts to deserialize the arguments from a request.
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impl<E, Encoding, Response, T> FromRes<Patch<Encoding>, Response, E> for T
where Response: ClientRes<E> + Send, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_res(res: Response) -> Result<T, E>

Attempts to deserialize the outputs from a response.
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impl<E, Encoding, Response, T> FromRes<Post<Encoding>, Response, E> for T
where Response: ClientRes<E> + Send, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_res(res: Response) -> Result<T, E>

Attempts to deserialize the outputs from a response.
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impl<E, Encoding, Response, T> FromRes<Put<Encoding>, Response, E> for T
where Response: ClientRes<E> + Send, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_res(res: Response) -> Result<T, E>

Attempts to deserialize the outputs from a response.
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impl<T, U> Into<U> for T
where 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<E, T, Encoding, Request> IntoReq<Patch<Encoding>, Request, E> for T
where Request: ClientReq<E>, Encoding: Encodes<T>, E: FromServerFnError,

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fn into_req(self, path: &str, accepts: &str) -> Result<Request, E>

Attempts to serialize the arguments into an HTTP request.
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impl<E, T, Encoding, Request> IntoReq<Post<Encoding>, Request, E> for T
where Request: ClientReq<E>, Encoding: Encodes<T>, E: FromServerFnError,

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fn into_req(self, path: &str, accepts: &str) -> Result<Request, E>

Attempts to serialize the arguments into an HTTP request.
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impl<E, T, Encoding, Request> IntoReq<Put<Encoding>, Request, E> for T
where Request: ClientReq<E>, Encoding: Encodes<T>, E: FromServerFnError,

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fn into_req(self, path: &str, accepts: &str) -> Result<Request, E>

Attempts to serialize the arguments into an HTTP request.
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impl<E, Response, Encoding, T> IntoRes<Patch<Encoding>, Response, E> for T
where Response: TryRes<E>, Encoding: Encodes<T>, E: FromServerFnError + Send, T: Send,

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async fn into_res(self) -> Result<Response, E>

Attempts to serialize the output into an HTTP response.
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impl<E, Response, Encoding, T> IntoRes<Post<Encoding>, Response, E> for T
where Response: TryRes<E>, Encoding: Encodes<T>, E: FromServerFnError + Send, T: Send,

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async fn into_res(self) -> Result<Response, E>

Attempts to serialize the output into an HTTP response.
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impl<E, Response, Encoding, T> IntoRes<Put<Encoding>, Response, E> for T
where Response: TryRes<E>, Encoding: Encodes<T>, E: FromServerFnError + Send, T: Send,

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async fn into_res(self) -> Result<Response, E>

Attempts to serialize the output into an HTTP response.
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impl<T> SerializableKey for T

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fn ser_key(&self) -> String

Serializes the key to a unique string. Read more
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impl<T> StorageAccess<T> for T

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fn as_borrowed(&self) -> &T

Borrows the value.
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fn into_taken(self) -> T

Takes the value.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where 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 T
where 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.