Struct viz_core::handler::MapErr

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pub struct MapErr<H, F> { /* private fields */ }

Expand description

Maps the Err value of the output if after the handler called.

Trait Implementations

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impl<H: Clone, F: Clone> Clone for MapErr<H, F>

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fn clone(&self) -> MapErr<H, F>

Returns a copy 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<H: Debug, F: Debug> Debug for MapErr<H, F>

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

Formats the value using the given formatter. Read more

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impl<H, F, I, O> Handler for MapErr<H, F> where
 I: Send + 'static,
 O: Send,
 H: Handler<I, Output = Result<O>> + Clone,
 F: Handler<Error, Output = Error> + Clone,

type Output = <H as Handler>::Output

The returned type after the call operator is used.

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fn call<'life0, 'async_trait>(
 &'life0 self,
 i: I
) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'async_trait>>ⓘNotable traits for Pin`impl Future for Pin where P: DerefMut, ::Target: Future, type Output = <::Target as Future>::Output;` where
 'life0: 'async_trait,
 Self: 'async_trait,

Performs the call operation.

Auto Trait Implementations

impl<H, F> RefUnwindSafe for MapErr<H, F> where
F: RefUnwindSafe,
H: RefUnwindSafe,

impl<H, F> Send for MapErr<H, F> where
F: Send,
H: Send,

impl<H, F> Sync for MapErr<H, F> where
F: Sync,
H: Sync,

impl<H, F> Unpin for MapErr<H, F> where
F: Unpin,
H: Unpin,

impl<H, F> UnwindSafe for MapErr<H, F> where
F: UnwindSafe,
H: 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

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<I, T> HandlerExt for T where
T: Handler + ?Sized,

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fn boxed(self) -> BoxHandler<I, Self::Output> where
Self: Sized,

Converts this Handler into a BoxHandler.

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fn before<F>(self, f: F) -> Before<Self, F> where
Self: Sized,

Maps the input before the handler calls.

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fn after<F>(self, f: F) -> After<Self, F> where
Self: Sized,

Maps the output Result<T> after the handler called.

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fn around<F>(self, f: F) -> Around<Self, F> where
Self: Sized,

Wraps around the remaining handler or middleware chain.

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fn map<F>(self, f: F) -> Map<Self, F> where
Self: Sized,

Maps the Ok value of the output if after the handler called.

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fn map_into_response<O>(self) -> MapInToResponse<Self, O> where
Self: Sized,

Maps the handler’s output type to the Response.

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fn and_then<F>(self, f: F) -> AndThen<Self, F> where
Self: Sized,

Calls op if the result is Ok, otherwise returns the Err value of self.

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fn map_err<F>(self, f: F) -> MapErr<Self, F> where
Self: Sized,

Maps the Err value of the output if after the handler called.

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fn or_else<F>(self, f: F) -> OrElse<Self, F> where
Self: Sized,

Calls op if the output is Err, otherwise returns the Ok value of the output.

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fn catch_error<F, R, E>(self, f: F) -> CatchError<Self, F, R, E> where
Self: Sized,

Catches rejected error while calling the handler.

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fn catch_unwind<F>(self, f: F) -> CatchUnwind<Self, F> where
Self: Sized,

Catches unwinding panics while calling the handler.

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fn with<T>(self, t: T) -> T::Output where
T: Transform<Self>,
Self: Sized,

Returns a new Handler that wrapping the Self and a type implementing Transform.

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fn with_fn<F>(self, f: F) -> Self where
F: Fn(Self) -> Self,
Self: Sized,

Maps the handler.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;`

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;`

Instruments this type with the current Span, returning an Instrumented wrapper. 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> Same<T> for T

type Output = T

Should always be Self

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impl<T> ToOwned for T where
T: Clone,

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 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.

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T> where T: Future, type Output = <T as Future>::Output;` where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

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fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T> where T: Future, type Output = <T as Future>::Output;`

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Struct viz_core::handler::MapErr

Trait Implementations

impl<H: Clone, F: Clone> Clone for MapErr<H, F>

fn clone(&self) -> MapErr<H, F>

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

impl<H: Debug, F: Debug> Debug for MapErr<H, F>

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

impl<H, F, I, O> Handler<I> for MapErr<H, F> where I: Send + 'static, O: Send, H: Handler<I, Output = Result<O>> + Clone, F: Handler<Error, Output = Error> + Clone,

type Output = <H as Handler<I>>::Output

Auto Trait Implementations

impl<H, F> RefUnwindSafe for MapErr<H, F> where F: RefUnwindSafe, H: RefUnwindSafe,

impl<H, F> Send for MapErr<H, F> where F: Send, H: Send,

impl<H, F> Sync for MapErr<H, F> where F: Sync, H: Sync,

impl<H, F> Unpin for MapErr<H, F> where F: Unpin, H: Unpin,

impl<H, F> UnwindSafe for MapErr<H, F> where F: UnwindSafe, H: UnwindSafe,

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> DynClone for T where T: Clone,

fn __clone_box(&self, Private) -> *mut ()

impl<T> From<T> for T

fn from(t: T) -> T

impl<I, T> HandlerExt<I> for T where T: Handler<I> + ?Sized,

fn boxed(self) -> BoxHandler<I, Self::Output> where Self: Sized,

fn before<F>(self, f: F) -> Before<Self, F> where Self: Sized,

fn after<F>(self, f: F) -> After<Self, F> where Self: Sized,

fn around<F>(self, f: F) -> Around<Self, F> where Self: Sized,

fn map<F>(self, f: F) -> Map<Self, F> where Self: Sized,

fn map_into_response<O>(self) -> MapInToResponse<Self, O> where Self: Sized,

fn and_then<F>(self, f: F) -> AndThen<Self, F> where Self: Sized,

fn map_err<F>(self, f: F) -> MapErr<Self, F> where Self: Sized,

fn or_else<F>(self, f: F) -> OrElse<Self, F> where Self: Sized,

fn catch_error<F, R, E>(self, f: F) -> CatchError<Self, F, R, E> where Self: Sized,

fn catch_unwind<F>(self, f: F) -> CatchUnwind<Self, F> where Self: Sized,

fn with<T>(self, t: T) -> T::Output where T: Transform<Self>, Self: Sized,

fn with_fn<F>(self, f: F) -> Self where F: Fn(Self) -> Self, Self: Sized,

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;

fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;

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

fn into(self) -> U

impl<T> Same<T> for T

type Output = T

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

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>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where T: Future, type Output = <T as Future>::Output; where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where T: Future, type Output = <T as Future>::Output;

impl<H, F, I, O> Handler<I> for MapErr<H, F> where
I: Send + 'static,
O: Send,
H: Handler<I, Output = Result<O>> + Clone,
F: Handler<Error, Output = Error> + Clone,

impl<H, F> RefUnwindSafe for MapErr<H, F> where
F: RefUnwindSafe,
H: RefUnwindSafe,

impl<H, F> Send for MapErr<H, F> where
F: Send,
H: Send,

impl<H, F> Sync for MapErr<H, F> where
F: Sync,
H: Sync,

impl<H, F> Unpin for MapErr<H, F> where
F: Unpin,
H: Unpin,

impl<H, F> UnwindSafe for MapErr<H, F> where
F: UnwindSafe,
H: UnwindSafe,

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<T> DynClone for T where
T: Clone,

impl<I, T> HandlerExt<I> for T where
T: Handler<I> + ?Sized,

fn boxed(self) -> BoxHandler<I, Self::Output> where
Self: Sized,

fn before<F>(self, f: F) -> Before<Self, F> where
Self: Sized,

fn after<F>(self, f: F) -> After<Self, F> where
Self: Sized,

fn around<F>(self, f: F) -> Around<Self, F> where
Self: Sized,

fn map<F>(self, f: F) -> Map<Self, F> where
Self: Sized,

fn map_into_response<O>(self) -> MapInToResponse<Self, O> where
Self: Sized,

fn and_then<F>(self, f: F) -> AndThen<Self, F> where
Self: Sized,

fn map_err<F>(self, f: F) -> MapErr<Self, F> where
Self: Sized,

fn or_else<F>(self, f: F) -> OrElse<Self, F> where
Self: Sized,

fn catch_error<F, R, E>(self, f: F) -> CatchError<Self, F, R, E> where
Self: Sized,

fn catch_unwind<F>(self, f: F) -> CatchUnwind<Self, F> where
Self: Sized,

fn with<T>(self, t: T) -> T::Output where
T: Transform<Self>,
Self: Sized,

fn with_fn<F>(self, f: F) -> Self where
F: Fn(Self) -> Self,
Self: Sized,

fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;`

fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;`

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

impl<T> ToOwned for T where
T: Clone,

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

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

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T> where T: Future, type Output = <T as Future>::Output;` where
S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T> where T: Future, type Output = <T as Future>::Output;`