Enum UnitError 

pub enum UnitError {
    DimensionMismatch {
        from: String,
        to: String,
    },
    IncompatibleDimensions {
        lhs: String,
        rhs: String,
    },
    UnknownUnit {
        name: String,
        suggestions: Vec<String>,
    },
    ParseError(String),
    NoEquivalency {
        from: String,
        to: String,
    },
    NotDimensionless,
    LogarithmicError(String),
    DimensionOverflow,
    ZeroDenominator,
    OffsetConversion {
        from: String,
        to: String,
    },
    BatchError(String),
}

Errors that can occur during unit operations.

Variants

DimensionMismatch

Attempted to convert between incompatible dimensions.

Fields

from: String

The source unit.

to: String

The target unit.

IncompatibleDimensions

Attempted to add or subtract quantities with different dimensions.

Fields

lhs: String

The left-hand side unit.

rhs: String

The right-hand side unit.

UnknownUnit

Unknown unit name in string parsing.

Fields

name: String

The unrecognized unit name.

suggestions: Vec<String>

Suggested similar unit names, if any.

ParseError(String)

Failed to parse a unit string.

NoEquivalency

No equivalency available for the requested conversion.

Fields

from: String

The source unit, which may include additional context.

to: String

The target unit.

NotDimensionless

Attempted to get scalar value from non-dimensionless quantity.

LogarithmicError(String)

Invalid operation on logarithmic unit.

DimensionOverflow

Overflow in dimension exponent calculation.

ZeroDenominator

Zero denominator in rational exponent.

OffsetConversion

Attempted to use a simple scale factor for offset unit conversion. Use Quantity::to() instead of Unit::conversion_factor() for offset units.

Fields

from: String

The source unit.

to: String

The target unit.

BatchError(String)

Invalid input for batch operation.

Trait Implementations

impl Clone for UnitError

fn clone(&self) -> UnitError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnitError

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

Formats the value using the given formatter.

impl Display for UnitError

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

Formats the value using the given formatter.

impl Error for UnitError

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.