Enum Exception 

pub enum Exception {
    Io(Error),
    FileNotFound(String),
    DirectoryCreationFailed(String),
    ParseError(String),
    InvalidFormat,
    MissingField(String),
    ConnectionFailed(String),
    Timeout,
    InvalidUrl(String),
    ReqwestErr(Error),
    DataNotFound,
    DuplicateEntry(String),
    InvalidData(String),
    PermissionDenied,
    Unauthorized,
    ConfigError(String),
    MissingConfig(String),
    Unknown(String),
    NotImplemented,
}

Encapsulate common exception types

实现Error trait以兼容标准错误处理

Variants

Io(Error)

FileNotFound(String)

DirectoryCreationFailed(String)

ParseError(String)

InvalidFormat

MissingField(String)

ConnectionFailed(String)

Timeout

InvalidUrl(String)

ReqwestErr(Error)

DataNotFound

DuplicateEntry(String)

InvalidData(String)

PermissionDenied

Unauthorized

ConfigError(String)

MissingConfig(String)

Unknown(String)

NotImplemented

Trait Implementations

impl Debug for Exception

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

Formats the value using the given formatter.

impl Display for Exception

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

Formats the value using the given formatter.

impl Error for Exception

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 Exception

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Exception

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Exception

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Exception

fn from(value: Error) -> Self

Converts to this type from the input type.

impl From<ParseError> for Exception

fn from(err: ParseError) -> Self

Converts to this type from the input type.

impl From<ParseError> for Exception

fn from(value: ParseError) -> Self

Converts to this type from the input type.