Struct CodedError 

pub struct CodedError { /* private fields */ }

Typed marker carrying a stable error code (RIVET_CONFIG_* / RIVET_SOURCE_*), for config / source failures that an operator’s tooling greps by code rather than by wording.

Same contract as DataIntegrityError: the code rides on the type via downcast (so a reworded message never moves the code), and Display reproduces the wrapped message verbatim — the console line is unchanged except for the [CODE] prefix main adds. error_code reads code for the JSON code field + the text prefix.

A CodedError is always exit class Generic (config / usage — fix it, don’t retry), which is already classify_exit’s default, so it carries no class and needs no downcast arm there. The first coded error that needs a non-Generic class (e.g. a retryable source failure) is where a class field would be reintroduced — until then it is dead weight.

Implementations

impl CodedError

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

Wrap a human-facing message with a stable RIVET_* code.

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

The stable RIVET_* code.

Trait Implementations

impl Debug for CodedError

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

Formats the value using the given formatter.

impl Display for CodedError

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

Formats the value using the given formatter.

impl Error for CodedError

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.