Struct coap_handler::implementations::NeverFound

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pub struct NeverFound {}
👎Deprecated
Expand description

A resource that unconditionally responds 4.04 Not Found.

This is a convenience tool for building trees of resources – rather than special casing the “none found” situation, this handler can be used.

Trait Implementations§

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impl Handler for NeverFound

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type RequestData = ()

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fn extract_request_data( &mut self, _request: &impl ReadableMessage ) -> Self::RequestData

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fn estimate_length(&mut self, _request: &Self::RequestData) -> usize

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fn build_response( &mut self, response: &mut impl MutableWritableMessage, _request: Self::RequestData )

Auto Trait Implementations§

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<'a, OldRD, OldH> HandlerBuilder<'a, OldRD> for OldH
where OldH: Handler<RequestData = OldRD>,

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fn at<H>(self, path: &'a [&'a str], handler: H) -> ForkingHandler<'a, H, OldH>

👎Deprecated
Divert requests arriving at path into the given handler. Read more
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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> Same for T

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type Output = T

Should always be Self
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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.