Enum ErrorCode 

#[repr(u32)]
pub enum ErrorCode {
    ConnectionFailed = 1_000,
    ConnectionTimeout = 1_001,
    ConnectionClosed = 1_002,
    ConnectionRefused = 1_003,
    ConnectionLimitExceeded = 1_004,
    NotConnected = 1_005,
    ConnectionReconnecting = 1_006,
    AuthenticationFailed = 2_000,
    AuthenticationExpired = 2_001,
    AuthenticationInvalid = 2_002,
    AuthenticationRequired = 2_003,
    PermissionDenied = 2_004,
    TokenInvalid = 2_005,
    TokenExpired = 2_006,
    ProtocolError = 3_000,
    ProtocolVersionMismatch = 3_001,
    ProtocolNotSupported = 3_002,
    MessageFormatError = 3_003,
    MessageTooLarge = 3_004,
    InvalidCommand = 3_005,
    MessageSendFailed = 4_000,
    MessageDeliveryFailed = 4_001,
    MessageNotFound = 4_002,
    MessageExpired = 4_003,
    MessageRateLimitExceeded = 4_004,
    MessageDecodeFailed = 4_005,
    UserNotFound = 5_000,
    UserOffline = 5_001,
    UserBlocked = 5_002,
    UserQuotaExceeded = 5_003,
    UserSessionLimitExceeded = 5_004,
    InternalError = 6_000,
    ServiceUnavailable = 6_001,
    ResourceExhausted = 6_002,
    ConfigurationError = 6_003,
    DatabaseError = 6_004,
    NetworkError = 7_000,
    NetworkTimeout = 7_001,
    NetworkUnreachable = 7_002,
    NetworkConnectionLost = 7_003,
    SerializationError = 8_000,
    DeserializationError = 8_001,
    EncodingError = 8_002,
    GeneralError = 9_000,
    InvalidParameter = 9_001,
    OperationNotSupported = 9_002,
    OperationFailed = 9_003,
    OperationTimeout = 9_004,
    UnknownError = 9_999,
}

错误代码枚举 - 用于国际化

错误代码按类别分组，每个类别占用1000个代码范围：

• 1000-1999: 连接相关错误
• 2000-2999: 认证相关错误
• 3000-3999: 协议相关错误
• 4000-4999: 消息相关错误
• 5000-5999: 用户相关错误
• 6000-6999: 系统相关错误
• 7000-7999: 网络相关错误
• 8000-8999: 序列化相关错误
• 9000-9999: 通用错误

Variants

ConnectionFailed = 1_000

ConnectionTimeout = 1_001

ConnectionClosed = 1_002

ConnectionRefused = 1_003

ConnectionLimitExceeded = 1_004

NotConnected = 1_005

ConnectionReconnecting = 1_006

AuthenticationFailed = 2_000

AuthenticationExpired = 2_001

AuthenticationInvalid = 2_002

AuthenticationRequired = 2_003

PermissionDenied = 2_004

TokenInvalid = 2_005

TokenExpired = 2_006

ProtocolError = 3_000

ProtocolVersionMismatch = 3_001

ProtocolNotSupported = 3_002

MessageFormatError = 3_003

MessageTooLarge = 3_004

InvalidCommand = 3_005

MessageSendFailed = 4_000

MessageDeliveryFailed = 4_001

MessageNotFound = 4_002

MessageExpired = 4_003

MessageRateLimitExceeded = 4_004

MessageDecodeFailed = 4_005

UserNotFound = 5_000

UserOffline = 5_001

UserBlocked = 5_002

UserQuotaExceeded = 5_003

UserSessionLimitExceeded = 5_004

InternalError = 6_000

ServiceUnavailable = 6_001

ResourceExhausted = 6_002

ConfigurationError = 6_003

DatabaseError = 6_004

NetworkError = 7_000

NetworkTimeout = 7_001

NetworkUnreachable = 7_002

NetworkConnectionLost = 7_003

SerializationError = 8_000

DeserializationError = 8_001

EncodingError = 8_002

GeneralError = 9_000

InvalidParameter = 9_001

OperationNotSupported = 9_002

OperationFailed = 9_003

OperationTimeout = 9_004

UnknownError = 9_999

Implementations

impl ErrorCode

pub fn as_u32(&self) -> u32

获取错误代码的数字值

pub fn from_u32(code: u32) -> Option<Self>

从数字值创建错误代码

pub fn as_str(&self) -> &'static str

获取错误代码的英文标识符

pub fn category(&self) -> ErrorCategory

获取错误代码的类别（用于错误分类）

pub fn is_retryable(&self) -> bool

判断是否为可重试的错误

Trait Implementations

impl Clone for ErrorCode

fn clone(&self) -> ErrorCode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ErrorCode

impl Debug for ErrorCode

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ErrorCode

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ErrorCode

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

Formats the value using the given formatter.

impl Eq for ErrorCode

impl Hash for ErrorCode

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ErrorCode

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ErrorCode

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ErrorCode