Enum option_lock::ReadError

pub enum ReadError {
    Empty,
    Locked,
}

An error which may be thrown by [OptionLock::read]

Variants

Empty

Locked

Implementations

impl ReadError

pub fn is_empty(&self) -> bool

Check if the read/take operation failed because there was no stored value

pub fn is_locked(&self) -> bool

Check if the read/take operation failed because the lock was held by a competing guard

Trait Implementations

impl Debug for ReadError

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

Formats the value using the given formatter.

impl Display for ReadError

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

Formats the value using the given formatter.

impl Eq for ReadError

impl Error for ReadError

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<ReadError> for ReadError

fn eq(&self, other: &ReadError) -> 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 ReadError

impl StructuralPartialEq for ReadError