Enum Error 

pub enum Error {
    Scanner {
        scanner: String,
        message: String,
        source: Option<Box<dyn Error + Send + Sync>>,
    },
    Model(String),
    Config(String),
    InvalidInput(String),
    Io(Error),
    Serialization(Error),
    Vault(String),
    Timeout(u64),
    ResourceExhausted(String),
    Internal(String),
    Auth(String),
    Unauthorized(String),
    NotFound(String),
}

Core error type for LLM Shield operations

Design Principles

1. Specific Variants: Each error type has a specific variant
2. Context: All errors include contextual information
3. Source Chaining: Errors properly chain their sources
4. Display: Human-readable error messages

Variants

Scanner

Scanner-specific errors

Fields

scanner: String

message: String

source: Option<Box<dyn Error + Send + Sync>>

Model(String)

Model loading or inference errors

Config(String)

Configuration errors

InvalidInput(String)

Invalid input data

Io(Error)

I/O errors

Serialization(Error)

Serialization errors

Vault(String)

Vault errors (state management)

Timeout(u64)

Timeout errors

ResourceExhausted(String)

Resource exhaustion

Internal(String)

Internal errors (should not happen in production)

Auth(String)

Authentication errors

Unauthorized(String)

Unauthorized access

NotFound(String)

Resource not found

Implementations

impl Error

pub fn scanner<S: Into<String>, M: Into<String>>(scanner: S, message: M) -> Self

Create a scanner error with context

pub fn scanner_with_source<S: Into<String>, M: Into<String>>( scanner: S, message: M, source: Box<dyn Error + Send + Sync>, ) -> Self

Create a scanner error with source

pub fn model<S: Into<String>>(message: S) -> Self

Create a model error

pub fn config<S: Into<String>>(message: S) -> Self

Create a configuration error

pub fn invalid_input<S: Into<String>>(message: S) -> Self

Create an invalid input error

pub fn vault<S: Into<String>>(message: S) -> Self

Create a vault error

pub fn timeout(duration_ms: u64) -> Self

Create a timeout error

pub fn resource_exhausted<S: Into<String>>(resource: S) -> Self

Create a resource exhausted error

pub fn internal<S: Into<String>>(message: S) -> Self

Create an internal error

pub fn auth<S: Into<String>>(message: S) -> Self

Create an authentication error

pub fn unauthorized<S: Into<String>>(message: S) -> Self

Create an unauthorized error

pub fn not_found<S: Into<String>>(message: S) -> Self

Create a not found error

pub fn is_retryable(&self) -> bool

Check if error is retryable

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

Get error category for metrics

Trait Implementations

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(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.