Enum otter_api_tests::mpsc::TryRecvError

1.0.0 · source · [−]

pub enum TryRecvError {
    Empty,
    Disconnected,
}

Expand description

This enumeration is the list of the possible reasons that try_recv could not return data when called. This can occur with both a channel and a sync_channel.

Variants

`Empty`

This channel is currently empty, but the Sender(s) have not yet disconnected, so data may yet become available.

`Disconnected`

The channel’s sending half has become disconnected, and there will never be any more data received on it.

Trait Implementations

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impl Clone for TryRecvError

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fn clone(&self) -> TryRecvError

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 Debug for TryRecvError

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

Formats the value using the given formatter. Read more

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impl Display for TryRecvError

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

Formats the value using the given formatter. Read more

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impl Error for TryRecvError

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fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any. Read more

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fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred. Read more

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fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

1.24.0 · source

impl From<RecvError> for TryRecvError

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fn from(err: RecvError) -> TryRecvError

Converts a RecvError into a TryRecvError.

This conversion always returns TryRecvError::Disconnected.

No data is allocated on the heap.

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impl PartialEq<TryRecvError> for TryRecvError

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fn eq(&self, other: &TryRecvError) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl StructuralEq for TryRecvError

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impl StructuralPartialEq for TryRecvError

Auto Trait Implementations

impl RefUnwindSafe for TryRecvError

impl UnwindSafe for TryRecvError

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

impl<T> AsFail for T where
T: Fail,

fn as_fail(&self) -> &(dyn Fail + 'static)

Converts a reference to Self into a dynamic trait object of Fail.

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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

impl<T> DebugExt<T> for T where
T: Debug,

impl<T> Downcast for T where
T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<W, Global>`impl<W> Write for Box<W, Global> where W: Write + ?Sized, impl<R> Read for Box<R, Global> where R: Read + ?Sized, impl<F, A> Future for Box<F, A> where F: Future + Unpin + ?Sized, A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where I: Iterator + ?Sized, A: Allocator, type Item = ::Item;`

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

impl<T> DowncastSync for T where
T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

impl<A> DynCastExt for A

fn dyn_cast<T>(
 self
) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where
 A: DynCastExtHelper<T>,
 T: ?Sized,

Use this to cast from one trait object type to another. Read more

fn dyn_upcast<T>(self) -> <A as DynCastExtAdvHelper<T, T>>::Target where
A: DynCastExtAdvHelper<T, T, Source = <A as DynCastExtAdvHelper<T, T>>::Target>,
T: ?Sized,

Use this to upcast a trait to one of its supertraits. Read more

fn dyn_cast_adv<F, T>(
 self
) -> Result<<A as DynCastExtAdvHelper<F, T>>::Target, <A as DynCastExtAdvHelper<F, T>>::Source> where
 A: DynCastExtAdvHelper<F, T>,
 F: ?Sized,
 T: ?Sized,

Use this to cast from one trait object type to another. This method is more customizable than the dyn_cast method. Here you can also specify the “source” trait from which the cast is defined. This can for example allow using casts from a supertrait of the current trait object. Read more

fn dyn_cast_with_config<C>(
 self
) -> Result<<A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Target, <A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Source> where
 C: DynCastConfig,
 A: DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>,

Use this to cast from one trait object type to another. With this method the type parameter is a config type that uniquely specifies which cast should be preformed. Read more

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impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<E> Fail for E where
E: 'static + Error + Send + Sync,

fn name(&self) -> Option<&str>

Returns the “name” of the error. Read more

fn cause(&self) -> Option<&(dyn Fail + 'static)>

Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors. Read more

fn backtrace(&self) -> Option<&Backtrace>

Returns a reference to the Backtrace carried by this failure, if it carries one. Read more

fn context<D>(self, context: D) -> Context<D> where
D: 'static + Display + Send + Sync,

Provides context for this failure. Read more

fn compat(self) -> Compat<Self>

Wraps this failure in a compatibility wrapper that implements std::error::Error. 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> 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> ToString for T where
T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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

Enum otter_api_tests::mpsc::TryRecvError

Variants

Empty

Disconnected

Trait Implementations

impl Clone for TryRecvError

fn clone(&self) -> TryRecvError

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

impl Debug for TryRecvError

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

impl Display for TryRecvError

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

impl Error for TryRecvError

fn description(&self) -> &str

fn source(&self) -> Option<&(dyn Error + 'static)>

fn backtrace(&self) -> Option<&Backtrace>

fn cause(&self) -> Option<&dyn Error>

impl From<RecvError> for TryRecvError

fn from(err: RecvError) -> TryRecvError

impl PartialEq<TryRecvError> for TryRecvError

fn eq(&self, other: &TryRecvError) -> bool

fn ne(&self, other: &Rhs) -> bool

impl Copy for TryRecvError

impl Eq for TryRecvError

impl StructuralEq for TryRecvError

impl StructuralPartialEq for TryRecvError

Auto Trait Implementations

impl RefUnwindSafe for TryRecvError

impl Send for TryRecvError

impl Sync for TryRecvError

impl Unpin for TryRecvError

impl UnwindSafe for TryRecvError

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> AsFail for T where T: Fail,

fn as_fail(&self) -> &(dyn Fail + 'static)

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> DebugExt<T> for T where T: Debug,

fn to_debug(&self) -> String

impl<T> Downcast for T where T: Any,

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

fn as_any(&self) -> &(dyn Any + 'static)

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

impl<T> DowncastSync for T where T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync + 'static>

impl<A> DynCastExt for A

fn dyn_cast<T>( self) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where A: DynCastExtHelper<T>, T: ?Sized,

fn dyn_upcast<T>(self) -> <A as DynCastExtAdvHelper<T, T>>::Target where A: DynCastExtAdvHelper<T, T, Source = <A as DynCastExtAdvHelper<T, T>>::Target>, T: ?Sized,

fn dyn_cast_adv<F, T>( self) -> Result<<A as DynCastExtAdvHelper<F, T>>::Target, <A as DynCastExtAdvHelper<F, T>>::Source> where A: DynCastExtAdvHelper<F, T>, F: ?Sized, T: ?Sized,

impl<Q, K> Equivalent<K> for Q where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

impl<E> Fail for E where E: 'static + Error + Send + Sync,

fn name(&self) -> Option<&str>

fn cause(&self) -> Option<&(dyn Fail + 'static)>

fn backtrace(&self) -> Option<&Backtrace>

fn context<D>(self, context: D) -> Context<D> where D: 'static + Display + Send + Sync,

fn compat(self) -> Compat<Self>

impl<T> From<T> for T

fn from(t: T) -> T

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> ToString for T where T: Display + ?Sized,

default fn to_string(&self) -> String

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>,

`Empty`

`Disconnected`

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

impl<T> AsFail for T where
T: Fail,

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

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

impl<T> DebugExt<T> for T where
T: Debug,

impl<T> Downcast for T where
T: Any,

impl<T> DowncastSync for T where
T: Any + Send + Sync,

fn dyn_cast<T>(
self
) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where
A: DynCastExtHelper<T>,
T: ?Sized,

fn dyn_upcast<T>(self) -> <A as DynCastExtAdvHelper<T, T>>::Target where
A: DynCastExtAdvHelper<T, T, Source = <A as DynCastExtAdvHelper<T, T>>::Target>,
T: ?Sized,

fn dyn_cast_adv<F, T>(
self
) -> Result<<A as DynCastExtAdvHelper<F, T>>::Target, <A as DynCastExtAdvHelper<F, T>>::Source> where
A: DynCastExtAdvHelper<F, T>,
F: ?Sized,
T: ?Sized,

impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

impl<E> Fail for E where
E: 'static + Error + Send + Sync,

fn context<D>(self, context: D) -> Context<D> where
D: 'static + Display + Send + Sync,

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> ToString for T where
T: Display + ?Sized,

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;`