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allow concrete self types in consts

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This commit is contained in:
Bastian Kauschke 2020-09-01 14:30:16 +02:00
parent 7402a39447
commit e5b82a56c5
11 changed files with 141 additions and 18 deletions
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9
compiler/rustc_hir/src/def.rs
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@ -199,7 +199,14 @@ pub enum Res<Id = hir::HirId> {
// Type namespace
PrimTy(hir::PrimTy),
SelfTy(Option<DefId> /* trait */, Option<DefId> /* impl */),
/// `Self`, with both an optional trait and impl `DefId`.
///
/// HACK: impl self types also have an optional requirement to not mention
/// any generic parameters to allow the following with `min_const_generics`.
/// `impl Foo { fn test() -> [u8; std::mem::size_of::<Self>()]`.
///
/// Once `lazy_normalization_consts` is stable, this bodge can be removed again.
SelfTy(Option<DefId> /* trait */, Option<(DefId, bool)> /* impl */),
ToolMod, // e.g., `rustfmt` in `#[rustfmt::skip]`
// Value namespace