Enum OpParseError 

pub enum OpParseError {
    UnknownOp(String),
    UnknownRole(String),
    MissingRole,
    MissingFormat,
    StrayQualifier(String),
}

2026-09-28: Why an op spelling was refused.

Variants

UnknownOp(String)

2026-09-28: Not in the vocabulary.

UnknownRole(String)

2026-09-28: linear with a role outside LinearRole.

MissingRole

2026-09-28: linear without role.

MissingFormat

2026-09-28: act_quant without format.

StrayQualifier(String)

2026-09-28: role or format on an op that takes neither.

Trait Implementations

impl Clone for OpParseError

fn clone(&self) -> OpParseError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OpParseError

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

Formats the value using the given formatter.

impl Display for OpParseError

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

Formats the value using the given formatter.

impl Error for OpParseError

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 OpParseError

fn eq(&self, other: &OpParseError) -> 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 Eq for OpParseError

impl StructuralPartialEq for OpParseError