bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Rollup merge of #88775 - pnkfelix:revert-anon-union-parsing, r=davidtwco

Browse source 
Revert anon union parsing

Revert PR #84571 and #85515, which implemented anonymous union parsing in a manner that broke the context-sensitivity for the `union` keyword and thus broke stable Rust code.

Fix #88583.
This commit is contained in:
Manish Goregaokar 2021-09-15 14:56:58 -07:00 • committed by GitHub
commit fb2d7dff80
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
21 changed files with 50 additions and 595 deletions
Download patch file Download diff file Expand all files Collapse all files

4
compiler/rustc_ast/src/ast.rs
View file

@ -1902,10 +1902,6 @@ pub enum TyKind {
Never,
/// A tuple (`(A, B, C, D,...)`).
Tup(Vec<P<Ty>>),
/// An anonymous struct type i.e. `struct { foo: Type }`
AnonymousStruct(Vec<FieldDef>, bool),
/// An anonymous union type i.e. `union { bar: Type }`
AnonymousUnion(Vec<FieldDef>, bool),
/// A path (`module::module::...::Type`), optionally
/// "qualified", e.g., `<Vec<T> as SomeTrait>::SomeType`.
///

3
compiler/rustc_ast/src/mut_visit.rs
View file

@ -484,9 +484,6 @@ pub fn noop_visit_ty<T: MutVisitor>(ty: &mut P<Ty>, vis: &mut T) {
visit_vec(bounds, |bound| vis.visit_param_bound(bound));
}
TyKind::MacCall(mac) => vis.visit_mac_call(mac),
TyKind::AnonymousStruct(fields, ..) | TyKind::AnonymousUnion(fields, ..) => {
fields.flat_map_in_place(|field| vis.flat_map_field_def(field));
}
}
vis.visit_span(span);
visit_lazy_tts(tokens, vis);

3
compiler/rustc_ast/src/visit.rs
View file

@ -407,9 +407,6 @@ pub fn walk_ty<'a, V: Visitor<'a>>(visitor: &mut V, typ: &'a Ty) {
TyKind::Typeof(ref expression) => visitor.visit_anon_const(expression),
TyKind::Infer | TyKind::ImplicitSelf | TyKind::Err => {}
TyKind::MacCall(ref mac) => visitor.visit_mac_call(mac),
TyKind::AnonymousStruct(ref fields, ..) | TyKind::AnonymousUnion(ref fields, ..) => {
walk_list!(visitor, visit_field_def, fields)
}
TyKind::Never | TyKind::CVarArgs => {}
}
}