Enum CoreError 

#[non_exhaustive]
pub enum CoreError {
    InvalidCursor {
        reason: String,
    },
    FieldNotFound {
        field: String,
    },
    Filter {
        message: String,
    },
    Sort {
        message: String,
    },
    Search {
        message: String,
    },
    Validation {
        message: String,
    },
}

A recoverable error raised by the core engine.

It is a flat, Clone/Eq value type by design: it crosses the FFI boundary into Python / JS exceptions, so it carries owned messages rather than a borrowed source() chain. Match on CoreError::kind for behaviour.

#[non_exhaustive]: the crate is published independently (core-v*), so new variants must not be a breaking change — downstream matches need a _ arm.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidCursor

A cursor string was malformed, truncated, or tampered with.

Fields

reason: String

Machine-readable reason (e.g. "base64", "unknown type tag: x").

FieldNotFound

A field path could not be resolved on an item.

Fields

field: String

The dotted field path that failed to resolve.

Filter

A filter operator could not be applied (bad regex, bad operand, …).

Fields

message: String

Human-readable description.

Sort

A sort operation failed (e.g. values were not comparable).

Fields

message: String

Human-readable description.

Search

A search query was invalid.

Fields

message: String

Human-readable description.

Validation

An input value failed validation (out of range, mutually exclusive, …).

Fields

message: String

Human-readable description (surfaced verbatim to the host).

Implementations

impl CoreError

pub fn kind(&self) -> ErrorKind

The stable ErrorKind of this error.

Binding layers map this onto their host exception hierarchy, keeping the Python and Node error surfaces symmetric from a single source of truth.

Trait Implementations

impl Clone for CoreError

fn clone(&self) -> CoreError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CoreError

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

Formats the value using the given formatter.

impl Display for CoreError

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

Formats the value using the given formatter.

impl Eq for CoreError

impl Error for CoreError

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 PartialEq for CoreError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CoreError