Struct snafu::futures::try_stream::Context

source ·

pub struct Context<St, C, E> { /* private fields */ }

Expand description

Stream for the context combinator.

See the TryStreamExt::context method for more details.

Trait Implementations§

source §

impl<St: Debug, C: Debug, E: Debug> Debug for Context<St, C, E>

source §

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

Formats the value using the given formatter. Read more

source §

impl<St, C, E> Stream for Context<St, C, E>where
 St: TryStream,
 C: IntoError<E, Source = St::Error> + Clone,
 E: Error + ErrorCompat,

§

type Item = Result<<St as TryStream>::Ok, E>

Values yielded by the stream.

source §

fn poll_next(
self: Pin<&mut Self>,
ctx: &mut TaskContext<'_>
) -> Poll<Option<Self::Item>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted. Read more

§

fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream. Read more

source §

impl<'pin, St, C, E> Unpin for Context<St, C, E>where
__Context<'pin, St, C, E>: Unpin,

Auto Trait Implementations§

§

impl<St, C, E> RefUnwindSafe for Context<St, C, E>where
 C: RefUnwindSafe,
 E: RefUnwindSafe,
 St: RefUnwindSafe,

§

impl<St, C, E> Send for Context<St, C, E>where
 C: Send,
 E: Send,
 St: Send,

§

impl<St, C, E> Sync for Context<St, C, E>where
 C: Sync,
 E: Sync,
 St: Sync,

§

impl<St, C, E> UnwindSafe for Context<St, C, E>where
 C: UnwindSafe,
 E: UnwindSafe,
 St: UnwindSafe,

Blanket Implementations§

source §

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

source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source §

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

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source §

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

const: unstable · source§

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

Mutably borrows from an owned value. Read more

source §

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

source §

impl<T, U> Into for Twhere
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.

source §

impl<T, U> TryFrom for Twhere
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.

source §

impl<T, U> TryInto for Twhere
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<S, T, E> TryStream for Swhere
S: Stream<Item = Result<T, E>> + ?Sized,

§

type Ok = T

The type of successful values yielded by this future

§

type Error = E

The type of failures yielded by this future

§

fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

Poll this TryStream as if it were a Stream. Read more

source §

impl<St> TryStreamExt for Stwhere
St: TryStream,

source §

fn context<C, E>(self, context: C) -> Context<St, C, E>where
C: IntoError<E, Source = <St as TryStream>::Error> + Clone,
E: Error + ErrorCompat,

Extend a [TryStream]’s error with additional context-sensitive information. Read more

source §

fn with_context<F, C, E>(self, context: F) -> WithContext<St, F, E>where
 F: FnMut(&mut <St as TryStream>::Error) -> C,
 C: IntoError<E, Source = <St as TryStream>::Error>,
 E: Error + ErrorCompat,

Extend a [TryStream]’s error with lazily-generated context-sensitive information. Read more

source §

fn whatever_context<S, E>(self, context: S) -> WhateverContext<St, S, E>where
S: Into<String>,
E: FromString,

Extend a [TryStream]’s error with information from a string. Read more

source §

fn with_whatever_context<F, S, E>(
 self,
 context: F
) -> WithWhateverContext<St, F, E>where
 F: FnMut(&mut <St as TryStream>::Error) -> S,
 S: Into<String>,
 E: FromString,

Extend a [TryStream]’s error with information from a lazily-generated string. Read more

Struct snafu::futures::try_stream::Context

Trait Implementations§

impl<St: Debug, C: Debug, E: Debug> Debug for Context<St, C, E>

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

impl<St, C, E> Stream for Context<St, C, E>where
    St: TryStream,
    C: IntoError<E, Source = St::Error> + Clone,
    E: Error + ErrorCompat,

type Item = Result<<St as TryStream>::Ok, E>

fn poll_next(
self: Pin<&mut Self>,
ctx: &mut TaskContext<'_>
) -> Poll<Option<Self::Item>>

fn size_hint(&self) -> (usize, Option<usize>)

impl<'pin, St, C, E> Unpin for Context<St, C, E>where
__Context<'pin, St, C, E>: Unpin,

Auto Trait Implementations§

impl<St, C, E> RefUnwindSafe for Context<St, C, E>where
    C: RefUnwindSafe,
    E: RefUnwindSafe,
    St: RefUnwindSafe,

impl<St, C, E> Send for Context<St, C, E>where
    C: Send,
    E: Send,
    St: Send,

impl<St, C, E> Sync for Context<St, C, E>where
    C: Sync,
    E: Sync,
    St: Sync,

impl<St, C, E> UnwindSafe for Context<St, C, E>where
    C: UnwindSafe,
    E: UnwindSafe,
    St: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

impl<S, T, E> TryStream for Swhere
S: Stream<Item = Result<T, E>> + ?Sized,

type Ok = T

type Error = E

fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

impl<St> TryStreamExt for Stwhere
St: TryStream,

fn context<C, E>(self, context: C) -> Context<St, C, E>where
C: IntoError<E, Source = <St as TryStream>::Error> + Clone,
E: Error + ErrorCompat,

fn with_context<F, C, E>(self, context: F) -> WithContext<St, F, E>where
    F: FnMut(&mut <St as TryStream>::Error) -> C,
    C: IntoError<E, Source = <St as TryStream>::Error>,
    E: Error + ErrorCompat,

fn whatever_context<S, E>(self, context: S) -> WhateverContext<St, S, E>where
S: Into<String>,
E: FromString,

fn with_whatever_context<F, S, E>(
    self,
    context: F
) -> WithWhateverContext<St, F, E>where
    F: FnMut(&mut <St as TryStream>::Error) -> S,
    S: Into<String>,
    E: FromString,

Struct snafu::futures::try_stream::Context

Trait Implementations§

impl<St: Debug, C: Debug, E: Debug> Debug for Context<St, C, E>

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

impl<St, C, E> Stream for Context<St, C, E>where St: TryStream, C: IntoError<E, Source = St::Error> + Clone, E: Error + ErrorCompat,

type Item = Result<<St as TryStream>::Ok, E>

fn poll_next( self: Pin<&mut Self>, ctx: &mut TaskContext<'_>) -> Poll<Option<Self::Item>>

fn size_hint(&self) -> (usize, Option<usize>)

impl<'pin, St, C, E> Unpin for Context<St, C, E>where __Context<'pin, St, C, E>: Unpin,

Auto Trait Implementations§

impl<St, C, E> RefUnwindSafe for Context<St, C, E>where C: RefUnwindSafe, E: RefUnwindSafe, St: RefUnwindSafe,

impl<St, C, E> Send for Context<St, C, E>where C: Send, E: Send, St: Send,

impl<St, C, E> Sync for Context<St, C, E>where C: Sync, E: Sync, St: Sync,

impl<St, C, E> UnwindSafe for Context<St, C, E>where C: UnwindSafe, E: UnwindSafe, St: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

impl<S, T, E> TryStream for Swhere S: Stream<Item = Result<T, E>> + ?Sized,

type Ok = T

type Error = E

fn try_poll_next( self: Pin<&mut S>, cx: &mut Context<'_>) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

impl<St> TryStreamExt for Stwhere St: TryStream,

fn context<C, E>(self, context: C) -> Context<St, C, E>where C: IntoError<E, Source = <St as TryStream>::Error> + Clone, E: Error + ErrorCompat,

fn with_context<F, C, E>(self, context: F) -> WithContext<St, F, E>where F: FnMut(&mut <St as TryStream>::Error) -> C, C: IntoError<E, Source = <St as TryStream>::Error>, E: Error + ErrorCompat,

fn whatever_context<S, E>(self, context: S) -> WhateverContext<St, S, E>where S: Into<String>, E: FromString,

fn with_whatever_context<F, S, E>( self, context: F) -> WithWhateverContext<St, F, E>where F: FnMut(&mut <St as TryStream>::Error) -> S, S: Into<String>, E: FromString,

impl<St, C, E> Stream for Context<St, C, E>where
St: TryStream,
C: IntoError<E, Source = St::Error> + Clone,
E: Error + ErrorCompat,

fn poll_next(
self: Pin<&mut Self>,
ctx: &mut TaskContext<'_>
) -> Poll<Option<Self::Item>>

impl<'pin, St, C, E> Unpin for Context<St, C, E>where
__Context<'pin, St, C, E>: Unpin,

impl<St, C, E> RefUnwindSafe for Context<St, C, E>where
C: RefUnwindSafe,
E: RefUnwindSafe,
St: RefUnwindSafe,

impl<St, C, E> Send for Context<St, C, E>where
C: Send,
E: Send,
St: Send,

impl<St, C, E> Sync for Context<St, C, E>where
C: Sync,
E: Sync,
St: Sync,

impl<St, C, E> UnwindSafe for Context<St, C, E>where
C: UnwindSafe,
E: UnwindSafe,
St: UnwindSafe,

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

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

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

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

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

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

impl<S, T, E> TryStream for Swhere
S: Stream<Item = Result<T, E>> + ?Sized,

fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

impl<St> TryStreamExt for Stwhere
St: TryStream,

fn context<C, E>(self, context: C) -> Context<St, C, E>where
C: IntoError<E, Source = <St as TryStream>::Error> + Clone,
E: Error + ErrorCompat,

fn with_context<F, C, E>(self, context: F) -> WithContext<St, F, E>where
F: FnMut(&mut <St as TryStream>::Error) -> C,
C: IntoError<E, Source = <St as TryStream>::Error>,
E: Error + ErrorCompat,

fn whatever_context<S, E>(self, context: S) -> WhateverContext<St, S, E>where
S: Into<String>,
E: FromString,

fn with_whatever_context<F, S, E>(
self,
context: F
) -> WithWhateverContext<St, F, E>where
F: FnMut(&mut <St as TryStream>::Error) -> S,
S: Into<String>,
E: FromString,