Struct EirConstraint 

pub struct EirConstraint {
    pub body: Vec<EirBodyLiteral>,
}

Integrity constraint represented at the EIR boundary.

A constraint has no head: the conjunction of its body literals must never be satisfiable. Epistemic body literals are preserved first-class so that know/possible integrity constraints constrain accepted world views, rather than being silently rewritten into ordinary relational constraints.

Fields

body: Vec<EirBodyLiteral>

Constraint body whose conjunction must never hold in an accepted world view.

Trait Implementations

impl Clone for EirConstraint

fn clone(&self) -> EirConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EirConstraint

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

Formats the value using the given formatter.

impl PartialEq for EirConstraint

fn eq(&self, other: &EirConstraint) -> 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 Eq for EirConstraint

impl StructuralPartialEq for EirConstraint