InlineConst,
/// Opaque type, aka `impl Trait`.
OpaqueTy,
+ /// A return-position `impl Trait` in a trait definition
+ ImplTraitPlaceholder,
Field,
/// Lifetime parameter: the `'a` in `struct Foo<'a> { ... }`
LifetimeParam,
panic!("impossible struct constructor")
}
DefKind::OpaqueTy => "opaque type",
+ DefKind::ImplTraitPlaceholder => "opaque type in trait",
DefKind::TyAlias => "type alias",
DefKind::TraitAlias => "trait alias",
DefKind::AssocTy => "associated type",
| DefKind::Use
| DefKind::ForeignMod
| DefKind::GlobalAsm
- | DefKind::Impl => None,
+ | DefKind::Impl
+ | DefKind::ImplTraitPlaceholder => None,
}
}
| DefKind::Use
| DefKind::ForeignMod
| DefKind::OpaqueTy
+ | DefKind::ImplTraitPlaceholder
| DefKind::Impl
| DefKind::Field
| DefKind::TyParam
/// Different kinds of symbols can coexist even if they share the same textual name.
/// Therefore, they each have a separate universe (known as a "namespace").
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]
+#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub enum Namespace {
/// The type namespace includes `struct`s, `enum`s, `union`s, `trait`s, and `mod`s
/// (and, by extension, crates).