Struct Error 

pub struct Error {
    pub code: String,
    pub message: String,
    pub data: Option<Value>,
}

结构化错误，序列化为 { code, message, data? } 返回给前端。

Fields

code: String

机器可读的错误码，通常取自 codes，也可能是 Python 自定义的错误码。

message: String

面向开发者的错误描述。

data: Option<Value>

可选的附加数据（任意 JSON），为 None 时序列化结果中不包含该字段。

Implementations

impl Error

pub fn new(code: impl Into<String>, message: impl Into<String>) -> Self

以错误码和描述构造不带 data 的错误。

pub fn with_data(self, data: Value) -> Self

附加 data 字段并返回自身，便于链式构造。

Trait Implementations

impl Clone for Error

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<ProtocolError> for Error

fn from(e: ProtocolError) -> Self

Converts to this type from the input type.

impl PartialEq for Error

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Error

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 Error