Enum concurrent_queue::PopError

pub enum PopError {
    Empty,
    Closed,
}

Error which occurs when popping from an empty queue.

Variants

Empty

The queue is empty but not closed.

Closed

The queue is empty and closed.

Implementations

impl PopError

pub fn is_empty(&self) -> bool

Returns true if the queue is empty but not closed.

pub fn is_closed(&self) -> bool

Returns true if the queue is empty and closed.

Trait Implementations

impl Clone for PopError

fn clone(&self) -> PopError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for PopError

impl Debug for PopError

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

Formats the value using the given formatter.

impl Display for PopError

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

Formats the value using the given formatter.

impl Eq for PopError

impl Error for PopError

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

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

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

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

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

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl PartialEq<PopError> for PopError

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for PopError

impl StructuralPartialEq for PopError