Enum SolverError 

pub enum SolverError {
    DuplicateConstraint,
    UnsatisfiableConstraint,
    UnknownConstraint,
    UnknownEditVariable,
    InternalError(String),
}

Errors produced by the solver.

Variants

DuplicateConstraint

The constraint was already added.

UnsatisfiableConstraint

The constraint set is over-constrained (REQUIRED constraints conflict).

UnknownConstraint

The constraint was not previously added.

UnknownEditVariable

The variable was not registered as an edit variable.

InternalError(String)

An internal solver invariant was violated.

Trait Implementations

impl Clone for SolverError

fn clone(&self) -> SolverError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SolverError

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

Formats the value using the given formatter.

impl Display for SolverError

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

Formats the value using the given formatter.

impl Error for SolverError

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 SolverError

fn eq(&self, other: &SolverError) -> 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 SolverError