Struct chalk_ir::ProgramClauseImplication

pub struct ProgramClauseImplication<I: Interner> {
    pub consequence: DomainGoal<I>,
    pub conditions: Goals<I>,
    pub constraints: Constraints<I>,
    pub priority: ClausePriority,
}

Represents one clause of the form consequence :- conditions where conditions = cond_1 && cond_2 && ... is the conjunction of the individual conditions.

Fields

consequence: DomainGoal<I>

The consequence of the clause, which holds if the conditions holds.

conditions: Goals<I>

The condition goals that should hold.

constraints: Constraints<I>

The lifetime constraints that should be proven.

priority: ClausePriority

The relative priority of the implication.

Implementations

impl<I: Interner> ProgramClauseImplication<I>

pub fn debug(&self, interner: I) -> ProgramClauseImplicationDebug<'_, I>

Show debug output for the program clause implication.

impl<I: Interner> ProgramClauseImplication<I>

pub fn into_from_env_clause(self, interner: I) -> ProgramClauseImplication<I>

Change the implication into an application holding a FromEnv goal.

Trait Implementations

impl<I: Clone + Interner> Clone for ProgramClauseImplication<I>

fn clone(&self) -> ProgramClauseImplication<I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<I: Interner> Debug for ProgramClauseImplication<I>

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

Formats the value using the given formatter.

impl<I: Interner> HasInterner for ProgramClauseImplication<I>

type Interner = I

The interner associated with the type.

impl<I: Hash + Interner> Hash for ProgramClauseImplication<I>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<I: PartialEq + Interner> PartialEq for ProgramClauseImplication<I>

fn eq(&self, other: &ProgramClauseImplication<I>) -> bool

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<I: Interner> TypeFoldable<I> for ProgramClauseImplication<I>

fn try_fold_with<E>( self, folder: &mut dyn FallibleTypeFolder<I, Error = E>, outer_binder: DebruijnIndex, ) -> Result<Self, E>

Apply the given folder folder to self; binders is the number of binders that are in scope when beginning the folder. Typically binders starts as 0, but is adjusted when we encounter Binders<T> in the IR or other similar constructs.

fn fold_with( self, folder: &mut dyn TypeFolder<I>, outer_binder: DebruijnIndex, ) -> Self

A convenient alternative to try_fold_with for use with infallible folders. Do not override this method, to ensure coherence with try_fold_with.

impl<I: Interner> TypeVisitable<I> for ProgramClauseImplication<I>

fn visit_with<B>( &self, visitor: &mut dyn TypeVisitor<I, BreakTy = B>, outer_binder: DebruijnIndex, ) -> ControlFlow<B>

Apply the given visitor visitor to self; binders is the number of binders that are in scope when beginning the visitor. Typically binders starts as 0, but is adjusted when we encounter Binders<T> in the IR or other similar constructs.

impl<I: Interner> Zip<I> for ProgramClauseImplication<I>

fn zip_with<Z: Zipper<I>>( zipper: &mut Z, variance: Variance, a: &Self, b: &Self, ) -> Fallible<()>

Uses the zipper to walk through two values, ensuring that they match.

impl<I: Eq + Interner> Eq for ProgramClauseImplication<I>

impl<I: Interner> StructuralPartialEq for ProgramClauseImplication<I>