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Delete tuple unsizing

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This commit is contained in:
Alice Ryhl
2025-02-27 08:21:47 +00:00
parent 2af87eab3b
commit 44cccae02a
47 changed files with 55 additions and 879 deletions
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6
compiler/rustc_trait_selection/src/traits/project.rs
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@@ -1232,8 +1232,7 @@ fn assemble_candidates_from_impls<'cx, 'tcx>(
// why we special case object types.
false
}
ImplSource::Builtin(BuiltinImplSource::TraitUpcasting { .. }, _)
| ImplSource::Builtin(BuiltinImplSource::TupleUnsizing, _) => {
ImplSource::Builtin(BuiltinImplSource::TraitUpcasting { .. }, _) => {
// These traits have no associated types.
selcx.tcx().dcx().span_delayed_bug(
obligation.cause.span,
@@ -1325,8 +1324,7 @@ fn confirm_select_candidate<'cx, 'tcx>(
}
ImplSource::Builtin(BuiltinImplSource::Object { .. }, _)
| ImplSource::Param(..)
| ImplSource::Builtin(BuiltinImplSource::TraitUpcasting { .. }, _)
| ImplSource::Builtin(BuiltinImplSource::TupleUnsizing, _) => {
| ImplSource::Builtin(BuiltinImplSource::TraitUpcasting { .. }, _) => {
// we don't create Select candidates with this kind of resolution
span_bug!(
obligation.cause.span,