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WhateverContext

snafu::futures::try_stream

Struct WhateverContext 

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pub struct WhateverContext<St, S, E> { /* private fields */ }
Available on crate feature futures only.
Expand description

Stream for the whatever_context combinator.

See the TryStreamExt::whatever_context method for more details.

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impl<St: Debug, S: Debug, E: Debug> Debug for WhateverContext<St, S, 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, S, E> Stream for WhateverContext<St, S, E>
where St: TryStream, S: Into<String> + Clone, E: FromString, St::Error: Into<E::Source>,

Available on crate features alloc only.
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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
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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, S, E> Unpin for WhateverContext<St, S, E>
where PinnedFieldsOf<__WhateverContext<'pin, St, S, E>>: Unpin,

Auto Trait Implementations§

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impl<St, S, E> Freeze for WhateverContext<St, S, E>
where St: Freeze, S: Freeze, PhantomData<E>: Freeze,

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impl<St, S, E> RefUnwindSafe for WhateverContext<St, S, E>
where St: RefUnwindSafe, S: RefUnwindSafe, PhantomData<E>: RefUnwindSafe,

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impl<St, S, E> Send for WhateverContext<St, S, E>
where St: Send, S: Send, PhantomData<E>: Send,

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impl<St, S, E> Sync for WhateverContext<St, S, E>
where St: Sync, S: Sync, PhantomData<E>: Sync,

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impl<St, S, E> UnsafeUnpin for WhateverContext<St, S, E>
where St: UnsafeUnpin, S: UnsafeUnpin, PhantomData<E>: UnsafeUnpin,

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impl<St, S, E> UnwindSafe for WhateverContext<St, S, E>
where St: UnwindSafe, S: UnwindSafe, PhantomData<E>: 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,

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

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type Error = !

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

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type Ok = T

The type of successful values yielded by this future
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type Error = E

The type of failures yielded by this future
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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,

Available on crate feature futures only.
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,

Available on crate feature futures only.
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,

Available on crate feature futures and (crate features alloc) only.
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,

Available on crate feature futures and (crate features alloc) only.
Extend a TryStream’s error with information from a lazily-generated string. Read more