Struct geo_aid::generator::expression::expr::Difference

pub struct Difference {
    pub a: Arc<Expression<ScalarExpr>>,
    pub b: Arc<Expression<ScalarExpr>>,
}

a - b.

Fields

a: Arc<Expression<ScalarExpr>>

b: Arc<Expression<ScalarExpr>>

Trait Implementations

impl Clone for Difference

fn clone(&self) -> Difference

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Difference

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

Formats the value using the given formatter.

impl Evaluate for Difference

type Output = f64

fn evaluate(&self, args: &EvaluationArgs<'_>) -> f64

Evaluates the thing.

impl Kind for Difference

fn collect(&self, exprs: &mut Vec<usize>)

fn is_trivial(&self) -> bool

Trivial expressions are ones that don’t require any calculations being made. Trivial expressions should not be cached, as it is much faster to evaluate them than to get their caches.

fn evaluate_weights(&self) -> Weights

Evaluates weights.

impl Serialize for Difference

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.