Struct snafu::futures::try_stream::Context

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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

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

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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<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.

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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

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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

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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<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.

impl<S, T, E> TryStream for S where
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

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impl<St> TryStreamExt for St where
St: TryStream,

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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

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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

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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

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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 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<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>

impl<S, T, E> TryStream for S where
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 St where
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 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<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>

impl<S, T, E> TryStream for S where 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 St where 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 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, 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>,

impl<S, T, E> TryStream for S where
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 St where
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,