Enum ConversionError 

pub enum ConversionError {
    UnexpectedSymbol(String),
    NonIntegerCoefficient,
    NegativeExponent,
    ExponentTooLarge,
    NonConstantExponent,
    NonPolynomialFunction(String),
    ZeroDenominator,
}

Reason an expression could not be converted to a polynomial representation.

Variants

UnexpectedSymbol(String)

A symbol other than the target variable(s) appeared as a free term.

NonIntegerCoefficient

A rational or float coefficient was encountered; only integers are allowed.

NegativeExponent

An exponent was a negative integer (produces a rational function, not a poly).

ExponentTooLarge

An exponent was a non-negative integer too large to fit in u32.

NonConstantExponent

An exponent was not a constant integer (e.g. symbolic or float).

NonPolynomialFunction(String)

A function call appeared and may contain the variable.

ZeroDenominator

The denominator of a RationalFunction would be zero.

Implementations

impl ConversionError

pub fn remediation(&self) -> Option<&'static str>

A human-readable remediation hint for the user.

pub fn span(&self) -> Option<(usize, usize)>

Optional source span (start_byte, end_byte) within the input text. None until the parser is integrated.

Trait Implementations

impl AlkahestError for ConversionError

fn code(&self) -> &'static str

Stable diagnostic code, e.g. "E-DIFF-001".

fn remediation(&self) -> Option<&'static str>

Optional human-readable fix suggestion.

fn span(&self) -> Option<(usize, usize)>

Optional source span (start_byte, end_byte) within the input text.

impl Clone for ConversionError

fn clone(&self) -> ConversionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConversionError

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

Formats the value using the given formatter.

impl Display for ConversionError

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

Formats the value using the given formatter.

impl Error for ConversionError

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<ConversionError> for CadError

fn from(value: ConversionError) -> Self

Converts to this type from the input type.

impl From<ConversionError> for RealRootError

fn from(e: ConversionError) -> Self

Converts to this type from the input type.

impl From<ConversionError> for ResultantError

fn from(e: ConversionError) -> Self

Converts to this type from the input type.

impl PartialEq for ConversionError

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

impl StructuralPartialEq for ConversionError