Enum FindElem 

pub enum FindElem {
    Var(Var),
    Pull(Var, Pull),
    Aggregate {
        op: String,
        n: Option<i64>,
        var: Var,
    },
}

A :find element: a variable, a pull expression, or an aggregate call.

Variants

Var(Var)

A plain variable ?x.

Pull(Var, Pull)

A pull expression (pull ?e pattern).

Aggregate

An aggregate call such as (count ?x) or (min 3 ?x).

Fields

op: String

Operator name (count, sum, avg, min, max, …).

n: Option<i64>

Optional leading constant argument, as in (min 3 ?x).

var: Var

The aggregated variable.

Trait Implementations

impl Clone for FindElem

fn clone(&self) -> FindElem

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FindElem

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

Formats the value using the given formatter.

impl Eq for FindElem

impl From<Var> for FindElem

fn from(value: Var) -> Self

Converts to this type from the input type.

impl PartialEq for FindElem

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FindElem