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Consolidate trait upcasting and unsize into one normalization

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This commit is contained in:
Michael Goulet
2023-07-20 18:36:34 +00:00
parent c02d1a6553
commit de81007d13
4 changed files with 272 additions and 232 deletions
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13
compiler/rustc_trait_selection/src/solve/project_goals.rs
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@@ -1,6 +1,6 @@
use crate::traits::specialization_graph;
use super::assembly::{self, structural_traits};
use super::assembly::{self, structural_traits, BuiltinImplSource};
use super::EvalCtxt;
use rustc_hir::def::DefKind;
use rustc_hir::def_id::DefId;
@@ -502,17 +502,10 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
)
}
fn consider_builtin_unsize_candidate(
fn consider_builtin_unsize_and_upcast_candidates(
_ecx: &mut EvalCtxt<'_, 'tcx>,
goal: Goal<'tcx, Self>,
) -> QueryResult<'tcx> {
bug!("`Unsize` does not have an associated type: {:?}", goal);
}
fn consider_builtin_dyn_upcast_candidates(
_ecx: &mut EvalCtxt<'_, 'tcx>,
goal: Goal<'tcx, Self>,
) -> Vec<CanonicalResponse<'tcx>> {
) -> Vec<(CanonicalResponse<'tcx>, BuiltinImplSource)> {
bug!("`Unsize` does not have an associated type: {:?}", goal);
}