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Auto merge of #115131 - frank-king:feature/unnamed-fields-lite, r=petrochenkov

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Parse unnamed fields and anonymous structs or unions (no-recovery)

It is part of #114782 which implements #49804. Only parse anonymous structs or unions in struct field definition positions.

r? `@petrochenkov`
This commit is contained in:
bors 2023-08-24 12:52:35 +00:00
commit 18be2728bd
25 changed files with 650 additions and 5 deletions
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12
compiler/rustc_ast_lowering/src/lib.rs
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@ -1293,6 +1293,18 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
TyKind::Err => {
hir::TyKind::Err(self.tcx.sess.delay_span_bug(t.span, "TyKind::Err lowered"))
}
// FIXME(unnamed_fields): IMPLEMENTATION IN PROGRESS
#[allow(rustc::untranslatable_diagnostic)]
#[allow(rustc::diagnostic_outside_of_impl)]
TyKind::AnonStruct(ref _fields) => hir::TyKind::Err(
self.tcx.sess.span_err(t.span, "anonymous structs are unimplemented"),
),
// FIXME(unnamed_fields): IMPLEMENTATION IN PROGRESS
#[allow(rustc::untranslatable_diagnostic)]
#[allow(rustc::diagnostic_outside_of_impl)]
TyKind::AnonUnion(ref _fields) => hir::TyKind::Err(
self.tcx.sess.span_err(t.span, "anonymous unions are unimplemented"),
),
TyKind::Slice(ty) => hir::TyKind::Slice(self.lower_ty(ty, itctx)),
TyKind::Ptr(mt) => hir::TyKind::Ptr(self.lower_mt(mt, itctx)),
TyKind::Ref(region, mt) => {