Struct WorkflowError 

#[non_exhaustive]
pub struct WorkflowError {
    pub code: WorkflowErrorCode,
    pub message: String,
    pub details: Value,
}

工作流引擎统一错误类型。

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

code: WorkflowErrorCode

错误码

message: String

人类可读消息

details: Value

结构化详情（附加上下文，如缺失字段名、节点 ID 等）

Implementations

impl WorkflowError

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

构造新错误。

pub fn with_details(self, details: Value) -> Self

附结构化详情。

pub fn with_field( code: WorkflowErrorCode, message: impl Into<String>, field: &str, value: &str, ) -> Self

便捷构造：附单个字段详情。

Trait Implementations

impl Clone for WorkflowError

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 WorkflowError

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

Formats the value using the given formatter.

impl Display for WorkflowError

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

Formats the value using the given formatter.

impl Error for WorkflowError

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.