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/Rust

Enum TryRecvError 

pub enum TryRecvError {
    Empty,
    Disconnected,
}

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

1.0.0
Empty

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

1.0.0
Disconnected

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

Trait Implementations

1.0.0Source
impl Clone for TryRecvError
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fn clone(&self) -> TryRecvError
Returns a duplicate of the value. Read more
1.0.0Source
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
1.0.0Source
impl Debug for TryRecvError
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fn fmt(&self, f: &mut Formatter<'_>) -> Result
Formats the value using the given formatter. Read more
1.0.0Source
impl Display for TryRecvError
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fn fmt(&self, f: &mut Formatter<'_>) -> Result
Formats the value using the given formatter. Read more
1.0.0Source
impl Error for TryRecvError
1.30.0Source
fn source(&self) -> Option<&(dyn Error + 'static)>
Returns the lower-level source of this error, if any. Read more
1.0.0Source
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
Read more
1.0.0Source
fn cause(&self) -> Option<&dyn Error>
👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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fn provide<'a>(&'a self, request: &mut Request<'a>)
🔬This is a nightly-only experimental API. (error_generic_member_access #99301)
Provides type-based access to context intended for error reports. Read more
1.24.0Source
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.

1.0.0Source
impl PartialEq for TryRecvError
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fn eq(&self, other: &TryRecvError) -> bool
Tests for self and other values to be equal, and is used by ==.
1.0.0Source
fn ne(&self, other: &Rhs) -> bool
Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.0.0Source
impl Copy for TryRecvError
1.0.0Source
impl Eq for TryRecvError
1.0.0Source
impl StructuralPartialEq for TryRecvError

Auto Trait Implementations

impl Freeze for TryRecvError
impl RefUnwindSafe for TryRecvError
impl Send for TryRecvError
impl Sync for TryRecvError
impl Unpin for TryRecvError
impl UnwindSafe for TryRecvError

Blanket Implementations

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impl<T> Any for Twhere
    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 Twhere
    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 Twhere
    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> CloneToUninit for Twhere
    T: Clone,
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unsafe fn clone_to_uninit(&self, dest: *mut u8)
🔬This is a nightly-only experimental API. (clone_to_uninit #126799)
Performs copy-assignment from self to dest. 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 Twhere
    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> ToOwned for Twhere
    T: Clone,
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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 Twhere
    T: Display + ?Sized,
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fn to_string(&self) -> String
Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for Twhere
    U: Into<T>,
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type Error = Infallible
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 Twhere
    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.

© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/sync/mpsc/enum.TryRecvError.html