Struct RegistryError 

pub struct RegistryError { /* private fields */ }

One structured registration failure, with the evidence that produced it. 一条结构化注册失败，以及产生它的证据。

The fields are private so the construction contract is the only way in: RegistryError::new starts an error with its four essential facts, and the with_*/*_mut methods attach the optional chains afterwards. 字段私有，构造契约是唯一的入口：RegistryError::new 用四项必要事实开启一条错误， 可选链条随后由 with_*/*_mut 方法挂上。

Implementations

impl RegistryError

pub fn new( node: NodeId, path: impl Into<String>, source: impl Into<DiagnosticSource>, message: impl Into<String>, ) -> RegistryError

Start an error from the four facts every failure carries. 用每条失败都携带的四项事实开启一条错误。

The optional chains (source_chain, call_path, registration_chain, children) start empty and are attached by the builder methods. 可选链条（source_chain、call_path、registration_chain、children）起始为空， 由 builder 方法挂上。

pub fn node(&self) -> NodeId

The identity of the registration face this failure is about. 该失败所针对的注册面身份。

pub fn path(&self) -> &str

The logical path the failure was reported at. 报告该失败时所在的逻辑路径。

pub fn source(&self) -> &DiagnosticSource

The declaration source this failure points back to. 该失败指回的声明源码位置。

pub fn message(&self) -> &str

The human-readable failure message. 人类可读的失败消息。

pub fn children(&self) -> &[RegistryError]

The aggregated child failures, one per failed sub-check. 聚合的子失败，每个失败的子检查一条。

pub fn with_children(self, children: Vec<RegistryError>) -> RegistryError

Attach the aggregated child failures. 挂上聚合的子失败。

pub fn children_mut(&mut self) -> &mut Vec<RegistryError>

Replace the aggregated child failures in place. 就地替换聚合的子失败。

pub fn message_mut(&mut self) -> &mut String

Replace the failure message in place. 就地替换失败消息。

pub fn source_chain_mut(&mut self) -> &mut Vec<ProvenanceStep>

Replace the source chain in place. 就地替换来源链。

pub fn call_path_mut(&mut self) -> &mut Vec<CallSite>

Replace the observed call path in place. 就地替换已观测调用路径。

pub fn registration_chain_mut(&mut self) -> &mut Vec<RegistrationState>

Replace the registration chain in place. 就地替换注册链。

Trait Implementations

impl Clone for RegistryError

fn clone(&self) -> RegistryError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RegistryError

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

Formats the value using the given formatter.

impl Display for RegistryError

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

Formats the value using the given formatter.

impl Error for RegistryError

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.