Struct chalk_engine::ExClause

pub struct ExClause<C: Context> {
    pub subst: C::Substitution,
    pub delayed_literals: Vec<DelayedLiteral<C>>,
    pub constraints: Vec<C::RegionConstraint>,
    pub subgoals: Vec<Literal<C>>,
}

The paper describes these as A :- D | G.

Fields

subst: C::Substitution

The substitution which, applied to the goal of our table, would yield A.

delayed_literals: Vec<DelayedLiteral<C>>

Delayed literals: things that we depend on negatively, but which have not yet been fully evaluated.

constraints: Vec<C::RegionConstraint>

Region constraints we have accumulated.

subgoals: Vec<Literal<C>>

Subgoals: literals that must be proven

Trait Implementations

impl<C: Clone + Context> Clone for ExClause<C> where
    C::Substitution: Clone,
    C::RegionConstraint: Clone, 

fn clone(&self) -> ExClause<C>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<C: Debug + Context> Debug for ExClause<C> where
    C::Substitution: Debug,
    C::RegionConstraint: Debug, 

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<C: PartialEq + Context> PartialEq for ExClause<C> where
    C::Substitution: PartialEq,
    C::RegionConstraint: PartialEq, 

fn eq(&self, __arg_0: &ExClause<C>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &ExClause<C>) -> bool

This method tests for !=.

impl<C: Eq + Context> Eq for ExClause<C> where
    C::Substitution: Eq,
    C::RegionConstraint: Eq, 

impl<C: Hash + Context> Hash for ExClause<C> where
    C::Substitution: Hash,
    C::RegionConstraint: Hash, 

fn hash<__HC: Hasher>(&self, __arg_0: &mut __HC)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].