Enum LabelExpression 

pub enum LabelExpression {
    Label(String),
    Conjunction(Vec<LabelExpression>),
    Disjunction(Vec<LabelExpression>),
    Negation(Box<LabelExpression>),
    Wildcard,
}

A label expression for GQL IS syntax (e.g., IS Person | Employee, IS Person & !Employee).

Variants

Label(String)

A single label name.

Conjunction(Vec<LabelExpression>)

Conjunction (AND): all labels must match.

Disjunction(Vec<LabelExpression>)

Disjunction (OR): any label must match.

Negation(Box<LabelExpression>)

Negation (NOT): label must not match.

Wildcard

Wildcard (%): matches any label.

Trait Implementations

impl Clone for LabelExpression

fn clone(&self) -> LabelExpression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LabelExpression

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

Formats the value using the given formatter.