Enum DistError 

pub enum DistError {
    Eval(ConstraintEvalError),
    NegativeWeight,
}

Why Dist::weights failed.

Variants

Eval(ConstraintEvalError)

A bound or weight could not be evaluated (an X/Z state, a division by zero).

NegativeWeight

A weight evaluated to a negative number (LRM 18.5.3: weights are non-negative).

Trait Implementations

impl Clone for DistError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DistError

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

Formats the value using the given formatter.

impl Display for DistError

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

Formats the value using the given formatter.

impl Eq for DistError

impl Error for DistError

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<ConstraintEvalError> for DistError

fn from(e: ConstraintEvalError) -> Self

Converts to this type from the input type.

impl PartialEq for DistError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DistError