Enum FeatureStructureNode 

pub enum FeatureStructureNode<'a> {
    Variable,
    Atom(&'a str),
    Map,
}

Read-only kind of a feature-structure node.

Variants

Variable

An unconstrained variable.

Atom(&'a str)

An atomic value.

Map

An attribute-value map. Use FeatureStructure::attributes to inspect its entries.

Trait Implementations

impl<'a> Clone for FeatureStructureNode<'a>

fn clone(&self) -> FeatureStructureNode<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for FeatureStructureNode<'a>

impl<'a> Debug for FeatureStructureNode<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for FeatureStructureNode<'a>

impl<'a> PartialEq for FeatureStructureNode<'a>

fn eq(&self, other: &FeatureStructureNode<'a>) -> 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<'a> StructuralPartialEq for FeatureStructureNode<'a>