Struct ScalarSignature 

pub struct ScalarSignature {
    pub name: &'static str,
    pub arity: Arity,
    pub check: fn(&[TypedExpr]) -> Result<(), PlannerError>,
    pub ret: ReturnRule,
    pub meta: FnMeta,
}

Fields

name: &'static str

arity: Arity

check: fn(&[TypedExpr]) -> Result<(), PlannerError>

ret: ReturnRule

meta: FnMeta

Trait Implementations

impl Clone for ScalarSignature

fn clone(&self) -> ScalarSignature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScalarSignature

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

Formats the value using the given formatter.