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Check that built-in callable types validate their output type is Sized (in new solver)

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This commit is contained in:
Michael Goulet 2023-02-10 02:10:42 +00:00
parent 3eb5c4581a
commit 82b52056fe
5 changed files with 80 additions and 14 deletions
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12
compiler/rustc_trait_selection/src/solve/assembly.rs
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@ -96,10 +96,22 @@ pub(super) trait GoalKind<'tcx>: TypeFoldable<'tcx> + Copy + Eq {
impl_def_id: DefId,
) -> QueryResult<'tcx>;
// Consider a predicate we know holds (`assumption`) against a goal we're trying to prove.
fn consider_assumption(
ecx: &mut EvalCtxt<'_, 'tcx>,
goal: Goal<'tcx, Self>,
assumption: ty::Predicate<'tcx>,
) -> QueryResult<'tcx> {
Self::consider_assumption_with_certainty(ecx, goal, assumption, Certainty::Yes)
}
// Consider a predicate we know holds (`assumption`) against a goal, unifying with
// the `assumption_certainty` if it satisfies the goal.
fn consider_assumption_with_certainty(
ecx: &mut EvalCtxt<'_, 'tcx>,
goal: Goal<'tcx, Self>,
assumption: ty::Predicate<'tcx>,
assumption_certainty: Certainty,
) -> QueryResult<'tcx>;
// A type implements an `auto trait` if its components do as well. These components