Struct FulfillmentCtxt 

pub struct FulfillmentCtxt<'db> {
    obligations: ObligationStorage<'db>,
    usable_in_snapshot: usize,
    try_evaluate_obligations_scratch: Vec<(Obligation<'db, Predicate<'db>>, Option<GoalStalledOn<DbInterner<'db>>>)>,
}

A trait engine using the new trait solver.

This is mostly identical to how evaluate_all works inside of the solver, except that the requirements are slightly different.

Unlike evaluate_all it is possible to add new obligations later on and we also have to track diagnostics information by using Obligation instead of Goal.

It is also likely that we want to use slightly different datastructures here as this will have to deal with far more root goals than evaluate_all.

Fields

obligations: ObligationStorage<'db>

usable_in_snapshot: usize

try_evaluate_obligations_scratch: Vec<(Obligation<'db, Predicate<'db>>, Option<GoalStalledOn<DbInterner<'db>>>)>

Implementations

impl<'db> FulfillmentCtxt<'db>

pub fn new(infcx: &InferCtxt<'db>) -> FulfillmentCtxt<'db>

Trait Implementations

impl<'db> Debug for FulfillmentCtxt<'db>

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

Formats the value using the given formatter.