Enum TryRecvError 

pub enum TryRecvError {
    Empty,
    Closed,
}

Error returned from try_recv when no value has been sent yet or channel is closed

当尚未发送值或通道已关闭时，try_recv 返回的错误

Variants

Empty

The channel is empty (no value sent yet)

通道为空（尚未发送值）

Closed

The sender was dropped without sending a value

发送器在发送值之前被丢弃

Trait Implementations

impl Clone for TryRecvError

fn clone(&self) -> TryRecvError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TryRecvError

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

Formats the value using the given formatter.

impl Display for TryRecvError

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

Formats the value using the given formatter.

impl Error for TryRecvError

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

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

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

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl PartialEq for TryRecvError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for TryRecvError

impl Eq for TryRecvError

impl StructuralPartialEq for TryRecvError