Enum ConstrainedGenerateError 

pub enum ConstrainedGenerateError {
    Runtime(Error),
    Constraint(ConstraintError),
}

Either a normal runtime error, or the constraint leaving no valid token — the two failure modes generate_constrained can hit.

Kept crate-local (hand-rolled Display/Error, no thiserror) rather than bolted onto kopitiam_core::Error: this crate does not own that enum, and “the grammar constraint masked every token” is a decoding-policy fact that belongs next to the decoding code, not in the shared tensor-error vocabulary. A ? on any inner runtime call folds into Runtime; a ? on ConstrainedSampler::try_sample folds into Constraint.

Variants

Runtime(Error)

A normal runtime failure (tokenize / forward pass / decode).

Constraint(ConstraintError)

The constraint masked every in-range token at some step — see ConstraintError. Almost always means the constraint is missing an escape hatch (e.g. it never allows EOS), not a broken model.

Trait Implementations

impl Debug for ConstrainedGenerateError

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

Formats the value using the given formatter.

impl Display for ConstrainedGenerateError

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

Formats the value using the given formatter.

impl Error for ConstrainedGenerateError

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<ConstraintError> for ConstrainedGenerateError

fn from(e: ConstraintError) -> Self

Converts to this type from the input type.

impl From<Error> for ConstrainedGenerateError

fn from(e: Error) -> Self

Converts to this type from the input type.