Struct Stratification 

pub struct Stratification {
    pub strata: Vec<Stratum>,
    pub rule_stratum: Vec<usize>,
}

Rule-level stratification of a finite Datalog program.

Dependencies connect a producer to a consumer only when the producer’s complete head pattern can unify with a body atom. EDB facts are available before stratum zero. Rule indices refer to the analyzed program’s rule order.

Fields

strata: Vec<Stratum>

Strata in evaluation order; close each to a fixed point before advancing.

rule_stratum: Vec<usize>

One stratum index for each rule, in program order.

Implementations

impl Stratification

pub fn stratum_of_rule(&self, rule_index: usize) -> Option<usize>

Return the stratum of a rule, or None for an out-of-range rule index.

Trait Implementations

impl Clone for Stratification

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Stratification

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Stratification

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Stratification

impl PartialEq for Stratification

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Stratification

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Stratification