Enum fastobo::semantics::Cardinality

pub enum Cardinality {
    ZeroOrOne,
    One,
    NotOne,
    Any,
}

The cardinality constraint for a given clause type.

Variants

ZeroOrOne

One

NotOne

Any

Implementations

impl Cardinality

pub fn is_match(&self, n: usize) -> bool

Return true if the cardinality matches the gievn element count.

pub fn to_error<S: Into<String>>( &self, n: usize, tag: S ) -> Option<CardinalityError>

Given a tag name, build an error from this cardinality if the count does not match.

Trait Implementations

impl Clone for Cardinality

fn clone(&self) -> Cardinality

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Cardinality

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

Formats the value using the given formatter.

impl PartialEq<Cardinality> for Cardinality

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Cardinality

impl StructuralEq for Cardinality

impl StructuralPartialEq for Cardinality