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Auto merge of #114545 - fee1-dead-contrib:lower-impl-effect, r=oli-obk

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correctly lower `impl const` to bind to host effect param

r? `@oli-obk`
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bors 2023-08-08 19:23:41 +00:00
commit f88a8b71ce
64 changed files with 465 additions and 373 deletions
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2
compiler/rustc_const_eval/src/const_eval/fn_queries.rs
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@ -40,7 +40,7 @@ fn constness(tcx: TyCtxt<'_>, def_id: LocalDefId) -> hir::Constness {
| hir::Node::AnonConst(_)
| hir::Node::ConstBlock(_)
| hir::Node::ImplItem(hir::ImplItem { kind: hir::ImplItemKind::Const(..), .. }) => hir::Constness::Const,
hir::Node::Item(hir::Item { kind: hir::ItemKind::Impl(impl_), .. }) => impl_.constness,
hir::Node::Item(hir::Item { kind: hir::ItemKind::Impl(_), .. }) => tcx.generics_of(def_id).host_effect_index.map_or(hir::Constness::NotConst, |_| hir::Constness::Const),
hir::Node::ForeignItem(hir::ForeignItem { kind: hir::ForeignItemKind::Fn(..), .. }) => {
// Intrinsics use `rustc_const_{un,}stable` attributes to indicate constness. All other
// foreign items cannot be evaluated at compile-time.