Enum CacheError 

pub enum CacheError {
    KeyNotFound {
        key: String,
    },
    Expired,
    CacheFull,
    InvalidConfig(String),
}

缓存错误

Variants

KeyNotFound

键不存在

Fields

key: String

Expired

值已过期

CacheFull

缓存已满且无法淘汰

InvalidConfig(String)

无效的配置

Implementations

impl CacheError

pub fn is_not_found(&self) -> bool

检查是否是键不存在错误

pub fn is_expired(&self) -> bool

检查是否是过期错误

Trait Implementations

impl Debug for CacheError

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

Formats the value using the given formatter.

impl Display for CacheError

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

Formats the value using the given formatter.

impl Error for CacheError

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.