Enum Fault 

#[non_exhaustive]
pub enum Fault {
    DivZero,
    Domain,
    Range,
    Empty,
    Absent,
    Future,
}

A formula evaluation fault (SPEC 5.5, 15.11; spec-0.4.0): the optional fault member of a not_covered envelope. The cell has no value, deterministically; this is not missing data. These are formula codes, not verification codes, so they are not ErrorCodes.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

DivZero

E_FORMULA_DIV_ZERO

Domain

E_FORMULA_DOMAIN

Range

E_FORMULA_RANGE

Empty

E_FORMULA_EMPTY

Absent

E_FORMULA_ABSENT

Future

E_FORMULA_FUTURE

Implementations

impl Fault

pub const ALL: &'static [Fault]

Every fault an envelope may carry, in the order of SPEC 5.5.

pub const fn as_str(self) -> &'static str

The code as written, e.g. "E_FORMULA_DIV_ZERO".

pub fn from_code(text: &str) -> Option<Fault>

Looks a fault up by its code; None for any other text (a budget, a cycle or too deep an evaluation is not a fault but the mesh’s failure, SPEC 5.5).

Trait Implementations

impl Clone for Fault

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Fault

impl Debug for Fault

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

Formats the value using the given formatter.

impl Display for Fault

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

Formats the value using the given formatter.

impl Eq for Fault

impl Hash for Fault

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Fault

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Fault

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Fault

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Fault