From e837101890ef118324ebbfd8e1395bca653c8b84 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?D=C3=A1niel=20Buga?= Date: Wed, 15 Dec 2021 08:38:12 +0100 Subject: [PATCH] Remove in_band_lifetimes from borrowck --- compiler/rustc_borrowck/src/borrow_set.rs | 2 +- .../rustc_borrowck/src/diagnostics/bound_region_errors.rs | 8 ++++---- .../rustc_borrowck/src/diagnostics/conflict_errors.rs | 4 ++-- compiler/rustc_borrowck/src/diagnostics/mod.rs | 4 ++-- .../rustc_borrowck/src/diagnostics/mutability_errors.rs | 4 ++-- compiler/rustc_borrowck/src/lib.rs | 1 - compiler/rustc_borrowck/src/member_constraints.rs | 6 +++--- compiler/rustc_borrowck/src/path_utils.rs | 2 +- .../src/type_check/free_region_relations.rs | 8 ++++---- .../src/type_check/liveness/local_use_map.rs | 2 +- compiler/rustc_borrowck/src/type_check/liveness/mod.rs | 4 ++-- .../rustc_borrowck/src/type_check/liveness/polonius.rs | 8 ++++---- compiler/rustc_borrowck/src/type_check/liveness/trace.rs | 6 +++--- compiler/rustc_borrowck/src/type_check/mod.rs | 2 +- compiler/rustc_borrowck/src/type_check/relate_tys.rs | 4 ++-- 15 files changed, 32 insertions(+), 33 deletions(-) diff --git a/compiler/rustc_borrowck/src/borrow_set.rs b/compiler/rustc_borrowck/src/borrow_set.rs index 952e18c1e570d..4a9904891ecad 100644 --- a/compiler/rustc_borrowck/src/borrow_set.rs +++ b/compiler/rustc_borrowck/src/borrow_set.rs @@ -84,7 +84,7 @@ pub enum LocalsStateAtExit { } impl LocalsStateAtExit { - fn build( + fn build<'tcx>( locals_are_invalidated_at_exit: bool, body: &Body<'tcx>, move_data: &MoveData<'tcx>, diff --git a/compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs index 881ebed602946..96326ef2d5a07 100644 --- a/compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs @@ -31,7 +31,7 @@ enum UniverseInfoInner<'tcx> { Other, } -impl UniverseInfo<'tcx> { +impl<'tcx> UniverseInfo<'tcx> { crate fn other() -> UniverseInfo<'tcx> { UniverseInfo(UniverseInfoInner::Other) } @@ -191,7 +191,7 @@ struct PredicateQuery<'tcx> { base_universe: ty::UniverseIndex, } -impl TypeOpInfo<'tcx> for PredicateQuery<'tcx> { +impl<'tcx> TypeOpInfo<'tcx> for PredicateQuery<'tcx> { fn fallback_error(&self, tcx: TyCtxt<'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { let mut err = tcx.sess.struct_span_err(span, "higher-ranked lifetime error"); err.note(&format!("could not prove {}", self.canonical_query.value.value.predicate)); @@ -231,7 +231,7 @@ struct NormalizeQuery<'tcx, T> { base_universe: ty::UniverseIndex, } -impl TypeOpInfo<'tcx> for NormalizeQuery<'tcx, T> +impl<'tcx, T> TypeOpInfo<'tcx> for NormalizeQuery<'tcx, T> where T: Copy + fmt::Display + TypeFoldable<'tcx> + 'tcx, { @@ -291,7 +291,7 @@ struct AscribeUserTypeQuery<'tcx> { base_universe: ty::UniverseIndex, } -impl TypeOpInfo<'tcx> for AscribeUserTypeQuery<'tcx> { +impl<'tcx> TypeOpInfo<'tcx> for AscribeUserTypeQuery<'tcx> { fn fallback_error(&self, tcx: TyCtxt<'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { // FIXME: This error message isn't great, but it doesn't show up in the existing UI tests, // and is only the fallback when the nice error fails. Consider improving this some more. diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 98c619cdd291c..ab9ecec9715d9 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -1598,8 +1598,8 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { location: Location, mpi: MovePathIndex, ) -> (Vec, Vec) { - fn predecessor_locations( - body: &'a mir::Body<'tcx>, + fn predecessor_locations<'a>( + body: &'a mir::Body<'_>, location: Location, ) -> impl Iterator + 'a { if location.statement_index == 0 { diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index dec1940ace881..46c85dd6d35e1 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -409,7 +409,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { /// Add a note that a type does not implement `Copy` pub(super) fn note_type_does_not_implement_copy( &self, - err: &mut DiagnosticBuilder<'a>, + err: &mut DiagnosticBuilder<'_>, place_desc: &str, ty: Ty<'tcx>, span: Option, @@ -733,7 +733,7 @@ pub(super) enum BorrowedContentSource<'tcx> { OverloadedIndex(Ty<'tcx>), } -impl BorrowedContentSource<'tcx> { +impl<'tcx> BorrowedContentSource<'tcx> { pub(super) fn describe_for_unnamed_place(&self, tcx: TyCtxt<'_>) -> String { match *self { BorrowedContentSource::DerefRawPointer => "a raw pointer".to_string(), diff --git a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs index b4821ee36e0a3..0434c1ba59a10 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs @@ -747,7 +747,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { HirId, ImplItem, ImplItemKind, Item, ItemKind, }; - fn maybe_body_id_of_fn(hir_map: &Map<'tcx>, id: HirId) -> Option { + fn maybe_body_id_of_fn(hir_map: &Map<'_>, id: HirId) -> Option { match hir_map.find(id) { Some(Node::Item(Item { kind: ItemKind::Fn(_, _, body_id), .. })) | Some(Node::ImplItem(ImplItem { kind: ImplItemKind::Fn(_, body_id), .. })) => { @@ -1066,7 +1066,7 @@ fn is_closure_or_generator(ty: Ty<'_>) -> bool { /// LL | s: &'a String /// | ---------- use `&'a mut String` here to make mutable /// ``` -fn annotate_struct_field( +fn annotate_struct_field<'tcx>( tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, field: &mir::Field, diff --git a/compiler/rustc_borrowck/src/lib.rs b/compiler/rustc_borrowck/src/lib.rs index 4136adcf65e08..63ffcb3ec4587 100644 --- a/compiler/rustc_borrowck/src/lib.rs +++ b/compiler/rustc_borrowck/src/lib.rs @@ -3,7 +3,6 @@ #![feature(bool_to_option)] #![feature(box_patterns)] #![feature(crate_visibility_modifier)] -#![feature(in_band_lifetimes)] #![feature(let_else)] #![feature(min_specialization)] #![feature(stmt_expr_attributes)] diff --git a/compiler/rustc_borrowck/src/member_constraints.rs b/compiler/rustc_borrowck/src/member_constraints.rs index f22d355e61344..0fe44328fd9f1 100644 --- a/compiler/rustc_borrowck/src/member_constraints.rs +++ b/compiler/rustc_borrowck/src/member_constraints.rs @@ -53,7 +53,7 @@ rustc_index::newtype_index! { } } -impl Default for MemberConstraintSet<'tcx, ty::RegionVid> { +impl Default for MemberConstraintSet<'_, ty::RegionVid> { fn default() -> Self { Self { first_constraints: Default::default(), @@ -97,7 +97,7 @@ impl<'tcx> MemberConstraintSet<'tcx, ty::RegionVid> { } } -impl MemberConstraintSet<'tcx, R1> +impl<'tcx, R1> MemberConstraintSet<'tcx, R1> where R1: Copy + Hash + Eq, { @@ -140,7 +140,7 @@ where } } -impl MemberConstraintSet<'tcx, R> +impl MemberConstraintSet<'_, R> where R: Copy + Hash + Eq, { diff --git a/compiler/rustc_borrowck/src/path_utils.rs b/compiler/rustc_borrowck/src/path_utils.rs index d5d00b467eeed..b2c8dfc82c206 100644 --- a/compiler/rustc_borrowck/src/path_utils.rs +++ b/compiler/rustc_borrowck/src/path_utils.rs @@ -141,7 +141,7 @@ pub(super) fn borrow_of_local_data(place: Place<'_>) -> bool { /// then returns the index of the field being projected. Note that this closure will always /// be `self` in the current MIR, because that is the only time we directly access the fields /// of a closure type. -pub(crate) fn is_upvar_field_projection( +pub(crate) fn is_upvar_field_projection<'tcx>( tcx: TyCtxt<'tcx>, upvars: &[Upvar<'tcx>], place_ref: PlaceRef<'tcx>, diff --git a/compiler/rustc_borrowck/src/type_check/free_region_relations.rs b/compiler/rustc_borrowck/src/type_check/free_region_relations.rs index 8d97c3cbb0b0e..fec6bdf314b1d 100644 --- a/compiler/rustc_borrowck/src/type_check/free_region_relations.rs +++ b/compiler/rustc_borrowck/src/type_check/free_region_relations.rs @@ -58,7 +58,7 @@ crate struct CreateResult<'tcx> { crate normalized_inputs_and_output: NormalizedInputsAndOutput<'tcx>, } -crate fn create( +crate fn create<'tcx>( infcx: &InferCtxt<'_, 'tcx>, param_env: ty::ParamEnv<'tcx>, implicit_region_bound: Option>, @@ -81,7 +81,7 @@ crate fn create( .create() } -impl UniversalRegionRelations<'tcx> { +impl UniversalRegionRelations<'_> { /// Records in the `outlives_relation` (and /// `inverse_outlives_relation`) that `fr_a: fr_b`. Invoked by the /// builder below. @@ -110,7 +110,7 @@ impl UniversalRegionRelations<'tcx> { /// outlives `fr` and (b) is not local. /// /// (*) If there are multiple competing choices, we return all of them. - crate fn non_local_upper_bounds(&'a self, fr: &'a RegionVid) -> Vec<&'a RegionVid> { + crate fn non_local_upper_bounds<'a>(&'a self, fr: &'a RegionVid) -> Vec<&'a RegionVid> { debug!("non_local_upper_bound(fr={:?})", fr); let res = self.non_local_bounds(&self.inverse_outlives, fr); assert!(!res.is_empty(), "can't find an upper bound!?"); @@ -232,7 +232,7 @@ struct UniversalRegionRelationsBuilder<'this, 'tcx> { region_bound_pairs: RegionBoundPairs<'tcx>, } -impl UniversalRegionRelationsBuilder<'cx, 'tcx> { +impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx> { crate fn create(mut self) -> CreateResult<'tcx> { let unnormalized_input_output_tys = self .universal_regions diff --git a/compiler/rustc_borrowck/src/type_check/liveness/local_use_map.rs b/compiler/rustc_borrowck/src/type_check/liveness/local_use_map.rs index 8b74abd94c077..dd23683fae8de 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/local_use_map.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/local_use_map.rs @@ -152,7 +152,7 @@ impl LocalUseMapBuild<'_> { } } -impl Visitor<'tcx> for LocalUseMapBuild<'_> { +impl Visitor<'_> for LocalUseMapBuild<'_> { fn visit_local(&mut self, &local: &Local, context: PlaceContext, location: Location) { if self.locals_with_use_data[local] { match def_use::categorize(context) { diff --git a/compiler/rustc_borrowck/src/type_check/liveness/mod.rs b/compiler/rustc_borrowck/src/type_check/liveness/mod.rs index 1e712354d6a83..f18fe1f43d4da 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/mod.rs @@ -74,7 +74,7 @@ pub(super) fn generate<'mir, 'tcx>( // to compute whether a variable `X` is live if that variable contains // some region `R` in its type where `R` is not known to outlive a free // region (i.e., where `R` may be valid for just a subset of the fn body). -fn compute_live_locals( +fn compute_live_locals<'tcx>( tcx: TyCtxt<'tcx>, free_regions: &FxHashSet, body: &Body<'tcx>, @@ -104,7 +104,7 @@ fn compute_live_locals( /// regions. For these regions, we do not need to compute /// liveness, since the outlives constraints will ensure that they /// are live over the whole fn body anyhow. -fn regions_that_outlive_free_regions( +fn regions_that_outlive_free_regions<'tcx>( num_region_vars: usize, universal_regions: &UniversalRegions<'tcx>, constraint_set: &OutlivesConstraintSet<'tcx>, diff --git a/compiler/rustc_borrowck/src/type_check/liveness/polonius.rs b/compiler/rustc_borrowck/src/type_check/liveness/polonius.rs index 79ab8b713f95d..ee067c4872f67 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/polonius.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/polonius.rs @@ -53,7 +53,7 @@ impl UseFactsExtractor<'_> { } } -impl Visitor<'tcx> for UseFactsExtractor<'_> { +impl Visitor<'_> for UseFactsExtractor<'_> { fn visit_local(&mut self, &local: &Local, context: PlaceContext, location: Location) { match def_use::categorize(context) { Some(DefUse::Def) => self.insert_def(local, location), @@ -63,7 +63,7 @@ impl Visitor<'tcx> for UseFactsExtractor<'_> { } } - fn visit_place(&mut self, place: &Place<'tcx>, context: PlaceContext, location: Location) { + fn visit_place(&mut self, place: &Place<'_>, context: PlaceContext, location: Location) { self.super_place(place, context, location); match context { PlaceContext::NonMutatingUse(_) => { @@ -82,7 +82,7 @@ impl Visitor<'tcx> for UseFactsExtractor<'_> { } } -pub(super) fn populate_access_facts( +pub(super) fn populate_access_facts<'tcx>( typeck: &mut TypeChecker<'_, 'tcx>, body: &Body<'tcx>, location_table: &LocationTable, @@ -123,7 +123,7 @@ pub(super) fn populate_access_facts( // For every potentially drop()-touched region `region` in `local`'s type // (`kind`), emit a Polonius `use_of_var_derefs_origin(local, origin)` fact. -pub(super) fn add_drop_of_var_derefs_origin( +pub(super) fn add_drop_of_var_derefs_origin<'tcx>( typeck: &mut TypeChecker<'_, 'tcx>, local: Local, kind: &GenericArg<'tcx>, diff --git a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs index 73c284071d5cc..0969b9a508f1d 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs @@ -34,7 +34,7 @@ use crate::{ /// DROP-LIVE set are to the liveness sets for regions found in the /// `dropck_outlives` result of the variable's type (in particular, /// this respects `#[may_dangle]` annotations). -pub(super) fn trace( +pub(super) fn trace<'mir, 'tcx>( typeck: &mut TypeChecker<'_, 'tcx>, body: &Body<'tcx>, elements: &Rc, @@ -119,7 +119,7 @@ struct LivenessResults<'me, 'typeck, 'flow, 'tcx> { stack: Vec, } -impl LivenessResults<'me, 'typeck, 'flow, 'tcx> { +impl<'me, 'typeck, 'flow, 'tcx> LivenessResults<'me, 'typeck, 'flow, 'tcx> { fn new(cx: LivenessContext<'me, 'typeck, 'flow, 'tcx>) -> Self { let num_points = cx.elements.num_points(); LivenessResults { @@ -418,7 +418,7 @@ impl LivenessResults<'me, 'typeck, 'flow, 'tcx> { } } -impl LivenessContext<'_, '_, '_, 'tcx> { +impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> { /// Returns `true` if the local variable (or some part of it) is initialized at the current /// cursor position. Callers should call one of the `seek` methods immediately before to point /// the cursor to the desired location. diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 195ed13a02705..872a432144704 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -945,7 +945,7 @@ crate struct MirTypeckRegionConstraints<'tcx> { crate type_tests: Vec>, } -impl MirTypeckRegionConstraints<'tcx> { +impl<'tcx> MirTypeckRegionConstraints<'tcx> { fn placeholder_region( &mut self, infcx: &InferCtxt<'_, 'tcx>, diff --git a/compiler/rustc_borrowck/src/type_check/relate_tys.rs b/compiler/rustc_borrowck/src/type_check/relate_tys.rs index 415d1abaa8b08..cc3fe0a123c55 100644 --- a/compiler/rustc_borrowck/src/type_check/relate_tys.rs +++ b/compiler/rustc_borrowck/src/type_check/relate_tys.rs @@ -51,7 +51,7 @@ struct NllTypeRelatingDelegate<'me, 'bccx, 'tcx> { universe_info: UniverseInfo<'tcx>, } -impl NllTypeRelatingDelegate<'me, 'bccx, 'tcx> { +impl<'me, 'bccx, 'tcx> NllTypeRelatingDelegate<'me, 'bccx, 'tcx> { fn new( type_checker: &'me mut TypeChecker<'bccx, 'tcx>, locations: Locations, @@ -62,7 +62,7 @@ impl NllTypeRelatingDelegate<'me, 'bccx, 'tcx> { } } -impl TypeRelatingDelegate<'tcx> for NllTypeRelatingDelegate<'_, '_, 'tcx> { +impl<'tcx> TypeRelatingDelegate<'tcx> for NllTypeRelatingDelegate<'_, '_, 'tcx> { fn param_env(&self) -> ty::ParamEnv<'tcx> { self.type_checker.param_env }