Enum KeyError 

pub enum KeyError {
    EmptyLoginId,
    LoginIdTooLong {
        actual: usize,
        max: usize,
    },
    NamespacedIdUnsupportedByLayout {
        api: &'static str,
    },
}

Storage key construction error | 存储键构造错误

Variants

EmptyLoginId

login_id is empty | login_id 为空

LoginIdTooLong

login_id exceeds [MAX_LOGIN_ID_LEN] bytes | login_id 超过 [MAX_LOGIN_ID_LEN] 字节

Fields

actual: usize

Actual byte length | 实际字节长度

max: usize

Maximum allowed byte length | 允许的最大字节长度

NamespacedIdUnsupportedByLayout

A namespaced-id API was called under a layout that cannot support it 在无法支持的布局下调用了「已命名空间化 id」API

Fields

api: &'static str

The API that was called | 被调用的 API 名

Trait Implementations

impl Clone for KeyError

fn clone(&self) -> KeyError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KeyError

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

Formats the value using the given formatter.

impl Display for KeyError

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

Formats the value using the given formatter.

impl Eq for KeyError

impl Error for KeyError

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 KeyError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for KeyError