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Built-in implementation of Tuple trait

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This commit is contained in:
Michael Goulet
2022-07-30 01:33:51 +00:00
parent 6b2eab2310
commit d0e4c679ff
8 changed files with 72 additions and 8 deletions
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6
compiler/rustc_trait_selection/src/traits/project.rs
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@@ -1625,7 +1625,8 @@ fn assemble_candidates_from_impls<'cx, 'tcx>(
super::ImplSource::AutoImpl(..)
| super::ImplSource::Builtin(..)
| super::ImplSource::TraitUpcasting(_)
| super::ImplSource::ConstDestruct(_) => {
| super::ImplSource::ConstDestruct(_)
| super::ImplSource::Tuple => {
// These traits have no associated types.
selcx.tcx().sess.delay_span_bug(
obligation.cause.span,
@@ -1700,7 +1701,8 @@ fn confirm_select_candidate<'cx, 'tcx>(
| super::ImplSource::Builtin(..)
| super::ImplSource::TraitUpcasting(_)
| super::ImplSource::TraitAlias(..)
| super::ImplSource::ConstDestruct(_) => {
| super::ImplSource::ConstDestruct(_)
| super::ImplSource::Tuple => {
// we don't create Select candidates with this kind of resolution
span_bug!(
obligation.cause.span,