Enum TokenChoiceError 

pub enum TokenChoiceError<E: Error + 'static> {
    Constraint(E),
    InvalidToken(u32),
    Forbidden(u32),
    AlreadyPending,
    UnexpectedCommit {
        expected: u32,
        actual: u32,
    },
}

Rejected canonical choice or error from the original grammar controller.

Variants

Constraint(E)

The existing grammar/filter failed.

InvalidToken(u32)

ID is outside the canonical vocabulary domain.

Forbidden(u32)

The active grammar/filter disallows this canonical ID.

AlreadyPending

A choice is already waiting for commitment.

UnexpectedCommit

Backend commitment violated the filter it received.

Fields

expected: u32

The sole allowed canonical ID.

actual: u32

The ID returned by the backend.

Trait Implementations

impl<E: Debug + Error + 'static> Debug for TokenChoiceError<E>

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

Formats the value using the given formatter.

impl<E> Display for TokenChoiceError<E>

where E: Display + Error + 'static,

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

Formats the value using the given formatter.

impl<E> Error for TokenChoiceError<E>

where E: Error + 'static + Error, Self: Debug + Display,

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.