Move impl constness into impl trait header

2024-12-10 10:12:36 +00:00
parent c0e0d8f874
commit 2ffe3b1e70
8 changed files with 35 additions and 33 deletions
--- a/compiler/rustc_trait_selection/src/traits/effects.rs
+++ b/compiler/rustc_trait_selection/src/traits/effects.rs
@@ -128,7 +128,9 @@ fn evaluate_host_effect_from_selection_candiate<'tcx>(
            Err(_) => Err(EvaluationFailure::NoSolution),
            Ok(Some(source)) => match source {
                ImplSource::UserDefined(impl_) => {
-                    if tcx.constness(impl_.impl_def_id) != hir::Constness::Const {
+                    if tcx.impl_trait_header(impl_.impl_def_id).unwrap().constness
+                        != hir::Constness::Const
+                    {
                        return Err(EvaluationFailure::NoSolution);
                    }