diff options
Diffstat (limited to 'compiler')
26 files changed, 61 insertions, 92 deletions
diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index 096bf826cfb..30b47d076e2 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -354,7 +354,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { }) } - ty::BoundRegionKind::BrAnon(..) => None, + ty::BoundRegionKind::BrAnon => None, }, ty::ReLateBound(..) diff --git a/compiler/rustc_borrowck/src/renumber.rs b/compiler/rustc_borrowck/src/renumber.rs index 4c7c4982050..5d6f5cc8967 100644 --- a/compiler/rustc_borrowck/src/renumber.rs +++ b/compiler/rustc_borrowck/src/renumber.rs @@ -7,7 +7,7 @@ use rustc_middle::mir::visit::{MutVisitor, TyContext}; use rustc_middle::mir::{Body, ConstOperand, Location, Promoted}; use rustc_middle::ty::GenericArgsRef; use rustc_middle::ty::{self, Ty, TyCtxt, TypeFoldable}; -use rustc_span::{Span, Symbol}; +use rustc_span::Symbol; /// Replaces all free regions appearing in the MIR with fresh /// inference variables, returning the number of variables created. @@ -29,20 +29,14 @@ pub fn renumber_mir<'tcx>( } #[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)] -pub(crate) enum BoundRegionInfo { - Name(Symbol), - Span(Span), -} - -#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)] pub(crate) enum RegionCtxt { Location(Location), TyContext(TyContext), Free(Symbol), - Bound(BoundRegionInfo), - LateBound(BoundRegionInfo), + Bound(Symbol), + LateBound(Symbol), Existential(Option<Symbol>), - Placeholder(BoundRegionInfo), + Placeholder(Symbol), Unknown, } diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 60e6dcaf0b8..aa750dd0169 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -1367,14 +1367,13 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { } }; let (sig, map) = tcx.replace_late_bound_regions(sig, |br| { - use crate::renumber::{BoundRegionInfo, RegionCtxt}; + use crate::renumber::RegionCtxt; let region_ctxt_fn = || { let reg_info = match br.kind { - ty::BoundRegionKind::BrAnon(Some(span)) => BoundRegionInfo::Span(span), - ty::BoundRegionKind::BrAnon(..) => BoundRegionInfo::Name(sym::anon), - ty::BoundRegionKind::BrNamed(_, name) => BoundRegionInfo::Name(name), - ty::BoundRegionKind::BrEnv => BoundRegionInfo::Name(sym::env), + ty::BoundRegionKind::BrAnon => sym::anon, + ty::BoundRegionKind::BrNamed(_, name) => name, + ty::BoundRegionKind::BrEnv => sym::env, }; RegionCtxt::LateBound(reg_info) diff --git a/compiler/rustc_borrowck/src/type_check/relate_tys.rs b/compiler/rustc_borrowck/src/type_check/relate_tys.rs index e0c6295627b..c1f82e19c02 100644 --- a/compiler/rustc_borrowck/src/type_check/relate_tys.rs +++ b/compiler/rustc_borrowck/src/type_check/relate_tys.rs @@ -11,7 +11,7 @@ use rustc_span::{Span, Symbol}; use crate::constraints::OutlivesConstraint; use crate::diagnostics::UniverseInfo; -use crate::renumber::{BoundRegionInfo, RegionCtxt}; +use crate::renumber::RegionCtxt; use crate::type_check::{InstantiateOpaqueType, Locations, TypeChecker}; impl<'a, 'tcx> TypeChecker<'a, 'tcx> { @@ -126,10 +126,9 @@ impl<'tcx> TypeRelatingDelegate<'tcx> for NllTypeRelatingDelegate<'_, '_, 'tcx> .placeholder_region(self.type_checker.infcx, placeholder); let reg_info = match placeholder.bound.kind { - ty::BoundRegionKind::BrAnon(Some(span)) => BoundRegionInfo::Span(span), - ty::BoundRegionKind::BrAnon(..) => BoundRegionInfo::Name(sym::anon), - ty::BoundRegionKind::BrNamed(_, name) => BoundRegionInfo::Name(name), - ty::BoundRegionKind::BrEnv => BoundRegionInfo::Name(sym::env), + ty::BoundRegionKind::BrAnon => sym::anon, + ty::BoundRegionKind::BrNamed(_, name) => name, + ty::BoundRegionKind::BrEnv => sym::env, }; if cfg!(debug_assertions) { diff --git a/compiler/rustc_borrowck/src/universal_regions.rs b/compiler/rustc_borrowck/src/universal_regions.rs index 02b52784ede..e00299bad66 100644 --- a/compiler/rustc_borrowck/src/universal_regions.rs +++ b/compiler/rustc_borrowck/src/universal_regions.rs @@ -28,7 +28,7 @@ use rustc_span::symbol::{kw, sym}; use rustc_span::Symbol; use std::iter; -use crate::renumber::{BoundRegionInfo, RegionCtxt}; +use crate::renumber::RegionCtxt; use crate::BorrowckInferCtxt; #[derive(Debug)] @@ -446,9 +446,7 @@ impl<'cx, 'tcx> UniversalRegionsBuilder<'cx, 'tcx> { if !indices.indices.contains_key(&r) { let region_vid = { let name = r.get_name_or_anon(); - self.infcx.next_nll_region_var(FR, || { - RegionCtxt::LateBound(BoundRegionInfo::Name(name)) - }) + self.infcx.next_nll_region_var(FR, || RegionCtxt::LateBound(name)) }; debug!(?region_vid); @@ -480,9 +478,7 @@ impl<'cx, 'tcx> UniversalRegionsBuilder<'cx, 'tcx> { if !indices.indices.contains_key(&r) { let region_vid = { let name = r.get_name_or_anon(); - self.infcx.next_nll_region_var(FR, || { - RegionCtxt::LateBound(BoundRegionInfo::Name(name)) - }) + self.infcx.next_nll_region_var(FR, || RegionCtxt::LateBound(name)) }; debug!(?region_vid); @@ -796,7 +792,7 @@ impl<'cx, 'tcx> InferCtxtExt<'tcx> for BorrowckInferCtxt<'cx, 'tcx> { _ => sym::anon, }; - self.next_nll_region_var(origin, || RegionCtxt::Bound(BoundRegionInfo::Name(name))) + self.next_nll_region_var(origin, || RegionCtxt::Bound(name)) }; indices.insert_late_bound_region(liberated_region, region_vid.as_var()); @@ -826,9 +822,7 @@ impl<'cx, 'tcx> InferCtxtExt<'tcx> for BorrowckInferCtxt<'cx, 'tcx> { if !indices.indices.contains_key(&r) { let region_vid = { let name = r.get_name_or_anon(); - self.next_nll_region_var(FR, || { - RegionCtxt::LateBound(BoundRegionInfo::Name(name)) - }) + self.next_nll_region_var(FR, || RegionCtxt::LateBound(name)) }; debug!(?region_vid); @@ -848,9 +842,7 @@ impl<'cx, 'tcx> InferCtxtExt<'tcx> for BorrowckInferCtxt<'cx, 'tcx> { if !indices.indices.contains_key(&r) { let region_vid = { let name = r.get_name_or_anon(); - self.next_nll_region_var(FR, || { - RegionCtxt::LateBound(BoundRegionInfo::Name(name)) - }) + self.next_nll_region_var(FR, || RegionCtxt::LateBound(name)) }; indices.insert_late_bound_region(r, region_vid.as_var()); diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs index 3a97a383ee1..106cd223d30 100644 --- a/compiler/rustc_hir_analysis/src/astconv/mod.rs +++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs @@ -2781,7 +2781,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { ) { for br in referenced_regions.difference(&constrained_regions) { let br_name = match *br { - ty::BrNamed(_, kw::UnderscoreLifetime) | ty::BrAnon(..) | ty::BrEnv => { + ty::BrNamed(_, kw::UnderscoreLifetime) | ty::BrAnon | ty::BrEnv => { "an anonymous lifetime".to_string() } ty::BrNamed(_, name) => format!("lifetime `{name}`"), @@ -2789,7 +2789,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { let mut err = generate_err(&br_name); - if let ty::BrNamed(_, kw::UnderscoreLifetime) | ty::BrAnon(..) = *br { + if let ty::BrNamed(_, kw::UnderscoreLifetime) | ty::BrAnon = *br { // The only way for an anonymous lifetime to wind up // in the return type but **also** be unconstrained is // if it only appears in "associated types" in the diff --git a/compiler/rustc_hir_analysis/src/check/intrinsic.rs b/compiler/rustc_hir_analysis/src/check/intrinsic.rs index 444103ffe8f..3c0d977917f 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsic.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsic.rs @@ -137,7 +137,7 @@ pub fn check_intrinsic_type(tcx: TyCtxt<'_>, it: &hir::ForeignItem<'_>) { let name_str = intrinsic_name.as_str(); let bound_vars = tcx.mk_bound_variable_kinds(&[ - ty::BoundVariableKind::Region(ty::BrAnon(None)), + ty::BoundVariableKind::Region(ty::BrAnon), ty::BoundVariableKind::Region(ty::BrEnv), ]); let mk_va_list_ty = |mutbl| { @@ -145,7 +145,7 @@ pub fn check_intrinsic_type(tcx: TyCtxt<'_>, it: &hir::ForeignItem<'_>) { let region = ty::Region::new_late_bound( tcx, ty::INNERMOST, - ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon(None) }, + ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon }, ); let env_region = ty::Region::new_late_bound( tcx, @@ -405,7 +405,7 @@ pub fn check_intrinsic_type(tcx: TyCtxt<'_>, it: &hir::ForeignItem<'_>) { ); let discriminant_def_id = assoc_items[0]; - let br = ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon(None) }; + let br = ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon }; ( 1, vec![Ty::new_imm_ref( @@ -463,7 +463,7 @@ pub fn check_intrinsic_type(tcx: TyCtxt<'_>, it: &hir::ForeignItem<'_>) { } sym::raw_eq => { - let br = ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon(None) }; + let br = ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon }; let param_ty = Ty::new_imm_ref( tcx, ty::Region::new_late_bound(tcx, ty::INNERMOST, br), diff --git a/compiler/rustc_hir_typeck/src/check.rs b/compiler/rustc_hir_typeck/src/check.rs index 041cc1abd54..1fa0ec173a7 100644 --- a/compiler/rustc_hir_typeck/src/check.rs +++ b/compiler/rustc_hir_typeck/src/check.rs @@ -204,7 +204,7 @@ fn check_panic_info_fn(tcx: TyCtxt<'_>, fn_id: LocalDefId, fn_sig: ty::FnSig<'_> &[ty::GenericArg::from(ty::Region::new_late_bound( tcx, ty::INNERMOST, - ty::BoundRegion { var: ty::BoundVar::from_u32(1), kind: ty::BrAnon(None) }, + ty::BoundRegion { var: ty::BoundVar::from_u32(1), kind: ty::BrAnon }, ))], ); let panic_info_ref_ty = Ty::new_imm_ref( @@ -212,14 +212,14 @@ fn check_panic_info_fn(tcx: TyCtxt<'_>, fn_id: LocalDefId, fn_sig: ty::FnSig<'_> ty::Region::new_late_bound( tcx, ty::INNERMOST, - ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon(None) }, + ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon }, ), panic_info_ty, ); let bounds = tcx.mk_bound_variable_kinds(&[ - ty::BoundVariableKind::Region(ty::BrAnon(None)), - ty::BoundVariableKind::Region(ty::BrAnon(None)), + ty::BoundVariableKind::Region(ty::BrAnon), + ty::BoundVariableKind::Region(ty::BrAnon), ]); let expected_sig = ty::Binder::bind_with_vars( tcx.mk_fn_sig([panic_info_ref_ty], tcx.types.never, false, fn_sig.unsafety, Abi::Rust), diff --git a/compiler/rustc_infer/src/errors/note_and_explain.rs b/compiler/rustc_infer/src/errors/note_and_explain.rs index bd168f047fa..9276bb0a7b7 100644 --- a/compiler/rustc_infer/src/errors/note_and_explain.rs +++ b/compiler/rustc_infer/src/errors/note_and_explain.rs @@ -56,11 +56,8 @@ impl<'a> DescriptionCtx<'a> { (Some(span), "as_defined", name.to_string()) } } - ty::BrAnon(span) => { - let span = match span { - Some(_) => span, - None => Some(tcx.def_span(scope)), - }; + ty::BrAnon => { + let span = Some(tcx.def_span(scope)); (span, "defined_here", String::new()) } _ => { diff --git a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs index 5978e2c743c..4124c9eada9 100644 --- a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs +++ b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs @@ -775,7 +775,7 @@ impl<'cx, 'tcx> Canonicalizer<'cx, 'tcx> { r: ty::Region<'tcx>, ) -> ty::Region<'tcx> { let var = self.canonical_var(info, r.into()); - let br = ty::BoundRegion { var, kind: ty::BrAnon(None) }; + let br = ty::BoundRegion { var, kind: ty::BrAnon }; ty::Region::new_late_bound(self.interner(), self.binder_index, br) } diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index e418864026f..72cfc1337e2 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -242,12 +242,9 @@ fn msg_span_from_named_region<'tcx>( }; (text, Some(span)) } - ty::BrAnon(span) => ( + ty::BrAnon => ( "the anonymous lifetime as defined here".to_string(), - Some(match span { - Some(span) => span, - None => tcx.def_span(scope) - }) + Some(tcx.def_span(scope)) ), _ => ( format!("the lifetime `{region}` as defined here"), @@ -262,11 +259,7 @@ fn msg_span_from_named_region<'tcx>( .. }) => (format!("the lifetime `{name}` as defined here"), Some(tcx.def_span(def_id))), ty::RePlaceholder(ty::PlaceholderRegion { - bound: ty::BoundRegion { kind: ty::BoundRegionKind::BrAnon(Some(span)), .. }, - .. - }) => ("the anonymous lifetime defined here".to_owned(), Some(span)), - ty::RePlaceholder(ty::PlaceholderRegion { - bound: ty::BoundRegion { kind: ty::BoundRegionKind::BrAnon(None), .. }, + bound: ty::BoundRegion { kind: ty::BoundRegionKind::BrAnon, .. }, .. }) => ("an anonymous lifetime".to_owned(), None), _ => bug!("{:?}", region), diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/named_anon_conflict.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/named_anon_conflict.rs index 07f04ec1e44..1b43022f8f7 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/named_anon_conflict.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/named_anon_conflict.rs @@ -61,7 +61,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { let is_impl_item = region_info.is_impl_item; match br { - ty::BrNamed(_, kw::UnderscoreLifetime) | ty::BrAnon(..) => {} + ty::BrNamed(_, kw::UnderscoreLifetime) | ty::BrAnon => {} _ => { /* not an anonymous region */ debug!("try_report_named_anon_conflict: not an anonymous region"); diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_relation.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_relation.rs index 8a78a1956c9..f5b8912532b 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_relation.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_relation.rs @@ -36,15 +36,13 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { ty::BrNamed(def_id, symbol) => { (Some(self.tcx().def_span(def_id)), Some(symbol)) } - ty::BrAnon(span) => (*span, None), - ty::BrEnv => (None, None), + ty::BrAnon | ty::BrEnv => (None, None), }; let (sup_span, sup_symbol) = match sup_name { ty::BrNamed(def_id, symbol) => { (Some(self.tcx().def_span(def_id)), Some(symbol)) } - ty::BrAnon(span) => (*span, None), - ty::BrEnv => (None, None), + ty::BrAnon | ty::BrEnv => (None, None), }; let diag = match (sub_span, sup_span, sub_symbol, sup_symbol) { (Some(sub_span), Some(sup_span), Some(&sub_symbol), Some(&sup_symbol)) => { diff --git a/compiler/rustc_middle/src/infer/canonical.rs b/compiler/rustc_middle/src/infer/canonical.rs index 2f2597d6b22..41beca072bf 100644 --- a/compiler/rustc_middle/src/infer/canonical.rs +++ b/compiler/rustc_middle/src/infer/canonical.rs @@ -455,7 +455,7 @@ impl<'tcx> CanonicalVarValues<'tcx> { CanonicalVarKind::Region(_) | CanonicalVarKind::PlaceholderRegion(_) => { let br = ty::BoundRegion { var: ty::BoundVar::from_usize(i), - kind: ty::BrAnon(None), + kind: ty::BrAnon, }; ty::Region::new_late_bound(tcx, ty::INNERMOST, br).into() } diff --git a/compiler/rustc_middle/src/mir/query.rs b/compiler/rustc_middle/src/mir/query.rs index c157b7052ab..c74a9536b63 100644 --- a/compiler/rustc_middle/src/mir/query.rs +++ b/compiler/rustc_middle/src/mir/query.rs @@ -414,8 +414,7 @@ impl<'tcx> ClosureOutlivesSubjectTy<'tcx> { pub fn bind(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> Self { let inner = tcx.fold_regions(ty, |r, depth| match r.kind() { ty::ReVar(vid) => { - let br = - ty::BoundRegion { var: ty::BoundVar::new(vid.index()), kind: ty::BrAnon(None) }; + let br = ty::BoundRegion { var: ty::BoundVar::new(vid.index()), kind: ty::BrAnon }; ty::Region::new_late_bound(tcx, depth, br) } _ => bug!("unexpected region in ClosureOutlivesSubjectTy: {r:?}"), diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 400d4bcad5b..a7dd6dc737d 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -318,7 +318,7 @@ pub struct CommonLifetimes<'tcx> { pub re_vars: Vec<Region<'tcx>>, /// Pre-interned values of the form: - /// `ReLateBound(DebruijnIndex(i), BoundRegion { var: v, kind: BrAnon(None) })` + /// `ReLateBound(DebruijnIndex(i), BoundRegion { var: v, kind: BrAnon })` /// for small values of `i` and `v`. pub re_late_bounds: Vec<Vec<Region<'tcx>>>, } @@ -395,7 +395,7 @@ impl<'tcx> CommonLifetimes<'tcx> { .map(|v| { mk(ty::ReLateBound( ty::DebruijnIndex::from(i), - ty::BoundRegion { var: ty::BoundVar::from(v), kind: ty::BrAnon(None) }, + ty::BoundRegion { var: ty::BoundVar::from(v), kind: ty::BrAnon }, )) }) .collect() diff --git a/compiler/rustc_middle/src/ty/fold.rs b/compiler/rustc_middle/src/ty/fold.rs index 77cf6bee79d..00529a1e066 100644 --- a/compiler/rustc_middle/src/ty/fold.rs +++ b/compiler/rustc_middle/src/ty/fold.rs @@ -385,7 +385,7 @@ impl<'tcx> TyCtxt<'tcx> { let index = entry.index(); let var = ty::BoundVar::from_usize(index); let kind = entry - .or_insert_with(|| ty::BoundVariableKind::Region(ty::BrAnon(None))) + .or_insert_with(|| ty::BoundVariableKind::Region(ty::BrAnon)) .expect_region(); let br = ty::BoundRegion { var, kind }; ty::Region::new_late_bound(self.tcx, ty::INNERMOST, br) diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index 34e3479c58e..99dc0b2607e 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -2330,7 +2330,7 @@ impl<'a, 'tcx> ty::TypeFolder<TyCtxt<'tcx>> for RegionFolder<'a, 'tcx> { // If this is an anonymous placeholder, don't rename. Otherwise, in some // async fns, we get a `for<'r> Send` bound match kind { - ty::BrAnon(..) | ty::BrEnv => r, + ty::BrAnon | ty::BrEnv => r, _ => { // Index doesn't matter, since this is just for naming and these never get bound let br = ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind }; @@ -2451,7 +2451,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { binder_level_idx: ty::DebruijnIndex, br: ty::BoundRegion| { let (name, kind) = match br.kind { - ty::BrAnon(..) | ty::BrEnv => { + ty::BrAnon | ty::BrEnv => { let name = next_name(&self); if let Some(lt_idx) = lifetime_idx { diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index f6372ef3f2f..2adbe9e0309 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -68,7 +68,7 @@ impl<'tcx> fmt::Debug for ty::adjustment::Adjustment<'tcx> { impl fmt::Debug for ty::BoundRegionKind { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { - ty::BrAnon(span) => write!(f, "BrAnon({span:?})"), + ty::BrAnon => write!(f, "BrAnon"), ty::BrNamed(did, name) => { if did.is_crate_root() { write!(f, "BrNamed({name})") diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index d2c42235adb..c823c4c2b57 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -69,7 +69,7 @@ pub struct FreeRegion { #[derive(HashStable)] pub enum BoundRegionKind { /// An anonymous region parameter for a given fn (&T) - BrAnon(Option<Span>), + BrAnon, /// Named region parameters for functions (a in &'a T) /// @@ -1465,7 +1465,7 @@ impl<'tcx> Region<'tcx> { bound_region: ty::BoundRegion, ) -> Region<'tcx> { // Use a pre-interned one when possible. - if let ty::BoundRegion { var, kind: ty::BrAnon(None) } = bound_region + if let ty::BoundRegion { var, kind: ty::BrAnon } = bound_region && let Some(inner) = tcx.lifetimes.re_late_bounds.get(debruijn.as_usize()) && let Some(re) = inner.get(var.as_usize()).copied() { @@ -3010,7 +3010,7 @@ mod size_asserts { use super::*; use rustc_data_structures::static_assert_size; // tidy-alphabetical-start - static_assert_size!(RegionKind<'_>, 28); + static_assert_size!(RegionKind<'_>, 24); static_assert_size!(TyKind<'_>, 32); // tidy-alphabetical-end } diff --git a/compiler/rustc_smir/src/rustc_smir/mod.rs b/compiler/rustc_smir/src/rustc_smir/mod.rs index 07aeac6b539..b575445c4d5 100644 --- a/compiler/rustc_smir/src/rustc_smir/mod.rs +++ b/compiler/rustc_smir/src/rustc_smir/mod.rs @@ -979,13 +979,11 @@ impl<'tcx> Stable<'tcx> for ty::BoundTyKind { impl<'tcx> Stable<'tcx> for ty::BoundRegionKind { type T = stable_mir::ty::BoundRegionKind; - fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + fn stable(&self, _: &mut Tables<'tcx>) -> Self::T { use stable_mir::ty::BoundRegionKind; match self { - ty::BoundRegionKind::BrAnon(option_span) => { - BoundRegionKind::BrAnon(option_span.map(|span| span.stable(tables))) - } + ty::BoundRegionKind::BrAnon => BoundRegionKind::BrAnon, ty::BoundRegionKind::BrNamed(def_id, symbol) => { BoundRegionKind::BrNamed(rustc_internal::br_named_def(*def_id), symbol.to_string()) } diff --git a/compiler/rustc_smir/src/stable_mir/ty.rs b/compiler/rustc_smir/src/stable_mir/ty.rs index 3a8fc1a502e..eb9967b3888 100644 --- a/compiler/rustc_smir/src/stable_mir/ty.rs +++ b/compiler/rustc_smir/src/stable_mir/ty.rs @@ -286,7 +286,7 @@ pub enum BoundTyKind { #[derive(Clone, Debug)] pub enum BoundRegionKind { - BrAnon(Option<Span>), + BrAnon, BrNamed(BrNamedDef, String), BrEnv, } diff --git a/compiler/rustc_symbol_mangling/src/v0.rs b/compiler/rustc_symbol_mangling/src/v0.rs index ec94deb4658..82b1a772e3d 100644 --- a/compiler/rustc_symbol_mangling/src/v0.rs +++ b/compiler/rustc_symbol_mangling/src/v0.rs @@ -329,7 +329,7 @@ impl<'tcx> Printer<'tcx> for &mut SymbolMangler<'tcx> { // Late-bound lifetimes use indices starting at 1, // see `BinderLevel` for more details. - ty::ReLateBound(debruijn, ty::BoundRegion { var, kind: ty::BrAnon(_) }) => { + ty::ReLateBound(debruijn, ty::BoundRegion { var, kind: ty::BrAnon }) => { let binder = &self.binders[self.binders.len() - 1 - debruijn.index()]; let depth = binder.lifetime_depths.start + var.as_u32(); diff --git a/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs b/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs index 5935c614ffd..26c68acddff 100644 --- a/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs +++ b/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs @@ -94,8 +94,7 @@ pub(in crate::solve) fn replace_erased_lifetimes_with_bound_vars<'tcx>( let mut counter = 0; let ty = tcx.fold_regions(ty, |r, current_depth| match r.kind() { ty::ReErased => { - let br = - ty::BoundRegion { var: ty::BoundVar::from_u32(counter), kind: ty::BrAnon(None) }; + let br = ty::BoundRegion { var: ty::BoundVar::from_u32(counter), kind: ty::BrAnon }; counter += 1; ty::Region::new_late_bound(tcx, current_depth, br) } @@ -103,7 +102,7 @@ pub(in crate::solve) fn replace_erased_lifetimes_with_bound_vars<'tcx>( r => bug!("unexpected region: {r:?}"), }); let bound_vars = tcx.mk_bound_variable_kinds_from_iter( - (0..counter).map(|_| ty::BoundVariableKind::Region(ty::BrAnon(None))), + (0..counter).map(|_| ty::BoundVariableKind::Region(ty::BrAnon)), ); ty::Binder::bind_with_vars(ty, bound_vars) } diff --git a/compiler/rustc_trait_selection/src/solve/canonicalize.rs b/compiler/rustc_trait_selection/src/solve/canonicalize.rs index 64b1321e51d..aa92b924ef2 100644 --- a/compiler/rustc_trait_selection/src/solve/canonicalize.rs +++ b/compiler/rustc_trait_selection/src/solve/canonicalize.rs @@ -269,7 +269,7 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'_, 'tcx> { self.primitive_var_infos.push(CanonicalVarInfo { kind }); var }); - let br = ty::BoundRegion { var, kind: BrAnon(None) }; + let br = ty::BoundRegion { var, kind: BrAnon }; ty::Region::new_late_bound(self.interner(), self.binder_index, br) } diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 7d672e658c7..bc9ba85fc9f 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -3102,7 +3102,7 @@ fn bind_generator_hidden_types_above<'tcx>( ty::ReErased => { let br = ty::BoundRegion { var: ty::BoundVar::from_u32(counter), - kind: ty::BrAnon(None), + kind: ty::BrAnon, }; counter += 1; ty::Region::new_late_bound(tcx, current_depth, br) @@ -3118,8 +3118,9 @@ fn bind_generator_hidden_types_above<'tcx>( if considering_regions { debug_assert!(!hidden_types.has_erased_regions()); } - let bound_vars = tcx.mk_bound_variable_kinds_from_iter(bound_vars.iter().chain( - (num_bound_variables..counter).map(|_| ty::BoundVariableKind::Region(ty::BrAnon(None))), - )); + let bound_vars = + tcx.mk_bound_variable_kinds_from_iter(bound_vars.iter().chain( + (num_bound_variables..counter).map(|_| ty::BoundVariableKind::Region(ty::BrAnon)), + )); ty::Binder::bind_with_vars(hidden_types, bound_vars) } |