Enum EngineError 

pub enum EngineError {
    InvalidArgument(String),
    Failed(String),
    Busy(String),
    Sqlite(Error),
    Io(Error),
}

Variants

InvalidArgument(String)

A caller-supplied value was rejected (the C++ std::invalid_argument).

Failed(String)

An operation could not complete (the C++ std::runtime_error).

Busy(String)

别的进程或本进程的另一处正占着这份数据，操作什么也没做，稍后重试即可。目前只有词库维护：拿不到 DictionaryAccess 的独占租约（还有会话或另一次维护开着）。

Sqlite(Error)

Io(Error)

Implementations

impl EngineError

pub fn invalid(message: impl Into<String>) -> Self

pub fn failed(message: impl Into<String>) -> Self

pub fn busy(message: impl Into<String>) -> Self

pub fn code(&self) -> ErrorCode

这条错误的稳定数字码；说明文字仍是 Display。

Trait Implementations

impl Debug for EngineError

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

Formats the value using the given formatter.

impl Display for EngineError

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

Formats the value using the given formatter.

impl Error for EngineError

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 From<Error> for EngineError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for EngineError

fn from(source: Error) -> Self

Converts to this type from the input type.