Struct coap_handler_implementations::NeverFound

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pub struct NeverFound {}

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

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

impl RefUnwindSafe for NeverFound

impl Send for NeverFound

impl Sync for NeverFound

impl Unpin for NeverFound

impl UnwindSafe for NeverFound

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

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impl<T> From<T> for T

const: unstable · source

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, Self> where
H: Handler + Sized,

Divert requests arriving at path into the given handler. Read more

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fn at_with_attributes<H>(
 self,
 path: &'a [&'a str ],
 attributes: &'a [Attribute ],
 handler: H
) -> ForkingHandler<'a, ConstantSingleRecordReport<'a, H>, Self> where
 H: Handler + Sized,

Divert requests arriving at path into the given handler, and announce them with the given attributes in .well-known/core. Read more

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fn below<H>(
 self,
 path: &'a [&'a str ],
 handler: H
) -> ForkingTreeHandler<'a, H, Self>

Divert requests arriving with an Uri-Path starting with path to the given handler. Read more

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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 for T where
U: From<T>,

const: unstable · source

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 for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct coap_handler_implementations::NeverFound

Trait Implementations

impl Handler for NeverFound

type RequestData = ()

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

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

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

Auto Trait Implementations

impl RefUnwindSafe for NeverFound

impl Send for NeverFound

impl Sync for NeverFound

impl Unpin for NeverFound

impl UnwindSafe for NeverFound

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn at<H>(self, path: &'a [&'a str ], handler: H) -> ForkingHandler<'a, H, Self> where
H: Handler + Sized,

fn at_with_attributes<H>(
    self,
    path: &'a [&'a str ],
    attributes: &'a [Attribute ],
    handler: H
) -> ForkingHandler<'a, ConstantSingleRecordReport<'a, H>, Self> where
    H: Handler + Sized,

fn below<H>(
    self,
    path: &'a [&'a str ],
    handler: H
) -> ForkingTreeHandler<'a, H, Self>

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

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

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

fn into(self) -> U

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

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct coap_handler_implementations::NeverFound

Trait Implementations

impl Handler for NeverFound

type RequestData = ()

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

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

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

Auto Trait Implementations

impl RefUnwindSafe for NeverFound

impl Send for NeverFound

impl Sync for NeverFound

impl Unpin for NeverFound

impl UnwindSafe for NeverFound

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn at<H>(self, path: &'a [&'a str], handler: H) -> ForkingHandler<'a, H, Self> where H: Handler + Sized,

fn at_with_attributes<H>( self, path: &'a [&'a str], attributes: &'a [Attribute], handler: H) -> ForkingHandler<'a, ConstantSingleRecordReport<'a, H>, Self> where H: Handler + Sized,

fn below<H>( self, path: &'a [&'a str], handler: H) -> ForkingTreeHandler<'a, H, Self>

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

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

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

fn into(self) -> U

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

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

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

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

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

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

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

fn at<H>(self, path: &'a [&'a str ], handler: H) -> ForkingHandler<'a, H, Self> where
H: Handler + Sized,

fn at_with_attributes<H>(
self,
path: &'a [&'a str ],
attributes: &'a [Attribute ],
handler: H
) -> ForkingHandler<'a, ConstantSingleRecordReport<'a, H>, Self> where
H: Handler + Sized,

fn below<H>(
self,
path: &'a [&'a str ],
handler: H
) -> ForkingTreeHandler<'a, H, Self>

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

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

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

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

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,