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Remove DefId from EarlyParamRegion (tedium/diagnostics)
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27 files changed

+266
-157
lines changed

27 files changed

+266
-157
lines changed

‎compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs

Lines changed: 22 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
11
use rustc_errors::Diag;
2+
use rustc_hir::def_id::LocalDefId;
23
use rustc_infer::infer::canonical::Canonical;
34
use rustc_infer::infer::error_reporting::nice_region_error::NiceRegionError;
45
use rustc_infer::infer::region_constraints::Constraint;
@@ -241,7 +242,7 @@ impl<'tcx> TypeOpInfo<'tcx> for PredicateQuery<'tcx> {
241242
mbcx.infcx.tcx.infer_ctxt().build_with_canonical(cause.span, &self.canonical_query);
242243
let ocx = ObligationCtxt::new(&infcx);
243244
type_op_prove_predicate_with_cause(&ocx, key, cause);
244-
try_extract_error_from_fulfill_cx(&ocx, placeholder_region, error_region)
245+
try_extract_error_from_fulfill_cx(&ocx, mbcx.mir_def_id(), placeholder_region, error_region)
245246
}
246247
}
247248

@@ -287,7 +288,7 @@ where
287288
let (param_env, value) = key.into_parts();
288289
let _ = ocx.normalize(&cause, param_env, value.value);
289290

290-
try_extract_error_from_fulfill_cx(&ocx, placeholder_region, error_region)
291+
try_extract_error_from_fulfill_cx(&ocx, mbcx.mir_def_id(), placeholder_region, error_region)
291292
}
292293
}
293294

@@ -318,7 +319,7 @@ impl<'tcx> TypeOpInfo<'tcx> for AscribeUserTypeQuery<'tcx> {
318319
mbcx.infcx.tcx.infer_ctxt().build_with_canonical(cause.span, &self.canonical_query);
319320
let ocx = ObligationCtxt::new(&infcx);
320321
type_op_ascribe_user_type_with_span(&ocx, key, Some(cause.span)).ok()?;
321-
try_extract_error_from_fulfill_cx(&ocx, placeholder_region, error_region)
322+
try_extract_error_from_fulfill_cx(&ocx, mbcx.mir_def_id(), placeholder_region, error_region)
322323
}
323324
}
324325

@@ -342,6 +343,7 @@ impl<'tcx> TypeOpInfo<'tcx> for crate::type_check::InstantiateOpaqueType<'tcx> {
342343
) -> Option<Diag<'tcx>> {
343344
try_extract_error_from_region_constraints(
344345
mbcx.infcx,
346+
mbcx.mir_def_id(),
345347
placeholder_region,
346348
error_region,
347349
self.region_constraints.as_ref().unwrap(),
@@ -358,6 +360,7 @@ impl<'tcx> TypeOpInfo<'tcx> for crate::type_check::InstantiateOpaqueType<'tcx> {
358360
#[instrument(skip(ocx), level = "debug")]
359361
fn try_extract_error_from_fulfill_cx<'tcx>(
360362
ocx: &ObligationCtxt<'_, 'tcx>,
363+
generic_param_scope: LocalDefId,
361364
placeholder_region: ty::Region<'tcx>,
362365
error_region: Option<ty::Region<'tcx>>,
363366
) -> Option<Diag<'tcx>> {
@@ -368,6 +371,7 @@ fn try_extract_error_from_fulfill_cx<'tcx>(
368371
let region_constraints = ocx.infcx.with_region_constraints(|r| r.clone());
369372
try_extract_error_from_region_constraints(
370373
ocx.infcx,
374+
generic_param_scope,
371375
placeholder_region,
372376
error_region,
373377
&region_constraints,
@@ -379,6 +383,7 @@ fn try_extract_error_from_fulfill_cx<'tcx>(
379383
#[instrument(level = "debug", skip(infcx, region_var_origin, universe_of_region))]
380384
fn try_extract_error_from_region_constraints<'tcx>(
381385
infcx: &InferCtxt<'tcx>,
386+
generic_param_scope: LocalDefId,
382387
placeholder_region: ty::Region<'tcx>,
383388
error_region: Option<ty::Region<'tcx>>,
384389
region_constraints: &RegionConstraintData<'tcx>,
@@ -452,15 +457,18 @@ fn try_extract_error_from_region_constraints<'tcx>(
452457
RegionResolutionError::ConcreteFailure(cause.clone(), sub_region, placeholder_region)
453458
}
454459
};
455-
NiceRegionError::new(&infcx.err_ctxt(), error).try_report_from_nll().or_else(|| {
456-
if let SubregionOrigin::Subtype(trace) = cause {
457-
Some(
458-
infcx
459-
.err_ctxt()
460-
.report_and_explain_type_error(*trace, TypeError::RegionsPlaceholderMismatch),
461-
)
462-
} else {
463-
None
464-
}
465-
})
460+
NiceRegionError::new(&infcx.err_ctxt(), generic_param_scope, error)
461+
.try_report_from_nll()
462+
.or_else(|| {
463+
if let SubregionOrigin::Subtype(trace) = cause {
464+
Some(
465+
infcx.err_ctxt().report_and_explain_type_error(
466+
*trace,
467+
TypeError::RegionsPlaceholderMismatch,
468+
),
469+
)
470+
} else {
471+
None
472+
}
473+
})
466474
}

‎compiler/rustc_borrowck/src/diagnostics/region_errors.rs

Lines changed: 24 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -361,6 +361,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
361361
let named_region = self.regioncx.name_regions(self.infcx.tcx, member_region);
362362
let diag = unexpected_hidden_region_diagnostic(
363363
self.infcx.tcx,
364+
self.mir_def_id(),
364365
span,
365366
named_ty,
366367
named_region,
@@ -453,7 +454,8 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
453454
// Check if we can use one of the "nice region errors".
454455
if let (Some(f), Some(o)) = (self.to_error_region(fr), self.to_error_region(outlived_fr)) {
455456
let infer_err = self.infcx.err_ctxt();
456-
let nice = NiceRegionError::new_from_span(&infer_err, cause.span, o, f);
457+
let nice =
458+
NiceRegionError::new_from_span(&infer_err, self.mir_def_id(), cause.span, o, f);
457459
if let Some(diag) = nice.try_report_from_nll() {
458460
self.buffer_error(diag);
459461
return;
@@ -843,14 +845,16 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
843845
if *outlived_f != ty::ReStatic {
844846
return;
845847
}
846-
let suitable_region = self.infcx.tcx.is_suitable_region(f);
848+
let suitable_region = self.infcx.tcx.is_suitable_region(self.mir_def_id(), f);
847849
let Some(suitable_region) = suitable_region else {
848850
return;
849851
};
850852

851853
let fn_returns = self.infcx.tcx.return_type_impl_or_dyn_traits(suitable_region.def_id);
852854

853-
let param = if let Some(param) = find_param_with_region(self.infcx.tcx, f, outlived_f) {
855+
let param = if let Some(param) =
856+
find_param_with_region(self.infcx.tcx, self.mir_def_id(), f, outlived_f)
857+
{
854858
param
855859
} else {
856860
return;
@@ -959,7 +963,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
959963
return;
960964
};
961965

962-
let param = match find_param_with_region(tcx, f, o) {
966+
let param = match find_param_with_region(tcx, self.mir_def_id(), f, o) {
963967
Some(param) => param,
964968
None => return,
965969
};
@@ -1022,25 +1026,30 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
10221026
return;
10231027
};
10241028

1025-
let Some((ty_sub, _)) = self
1026-
.infcx
1027-
.tcx
1028-
.is_suitable_region(sub)
1029-
.and_then(|anon_reg| find_anon_type(self.infcx.tcx, sub, &anon_reg.bound_region))
1029+
let Some((ty_sub, _)) =
1030+
self.infcx.tcx.is_suitable_region(self.mir_def_id(), sub).and_then(|anon_reg| {
1031+
find_anon_type(self.infcx.tcx, self.mir_def_id(), sub, &anon_reg.bound_region)
1032+
})
10301033
else {
10311034
return;
10321035
};
10331036

1034-
let Some((ty_sup, _)) = self
1035-
.infcx
1036-
.tcx
1037-
.is_suitable_region(sup)
1038-
.and_then(|anon_reg| find_anon_type(self.infcx.tcx, sup, &anon_reg.bound_region))
1037+
let Some((ty_sup, _)) =
1038+
self.infcx.tcx.is_suitable_region(self.mir_def_id(), sup).and_then(|anon_reg| {
1039+
find_anon_type(self.infcx.tcx, self.mir_def_id(), sup, &anon_reg.bound_region)
1040+
})
10391041
else {
10401042
return;
10411043
};
10421044

1043-
suggest_adding_lifetime_params(self.infcx.tcx, sub, ty_sup, ty_sub, diag);
1045+
suggest_adding_lifetime_params(
1046+
self.infcx.tcx,
1047+
diag,
1048+
self.mir_def_id(),
1049+
sub,
1050+
ty_sup,
1051+
ty_sub,
1052+
);
10441053
}
10451054

10461055
#[allow(rustc::diagnostic_outside_of_impl)]

‎compiler/rustc_borrowck/src/diagnostics/region_name.rs

Lines changed: 5 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -289,7 +289,8 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
289289
debug!("give_region_a_name: error_region = {:?}", error_region);
290290
match *error_region {
291291
ty::ReEarlyParam(ebr) => ebr.has_name().then(|| {
292-
let span = tcx.hir().span_if_local(ebr.def_id).unwrap_or(DUMMY_SP);
292+
let def_id = tcx.generics_of(self.mir_def_id()).region_param(ebr, tcx).def_id;
293+
let span = tcx.hir().span_if_local(def_id).unwrap_or(DUMMY_SP);
293294
RegionName { name: ebr.name, source: RegionNameSource::NamedEarlyParamRegion(span) }
294295
}),
295296

@@ -912,7 +913,8 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
912913
};
913914

914915
let tcx = self.infcx.tcx;
915-
let region_parent = tcx.parent(region.def_id);
916+
let region_def = tcx.generics_of(self.mir_def_id()).region_param(region, tcx).def_id;
917+
let region_parent = tcx.parent(region_def);
916918
let DefKind::Impl { .. } = tcx.def_kind(region_parent) else {
917919
return None;
918920
};
@@ -925,7 +927,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
925927
Some(RegionName {
926928
name: self.synthesize_region_name(),
927929
source: RegionNameSource::AnonRegionFromImplSignature(
928-
tcx.def_span(region.def_id),
930+
tcx.def_span(region_def),
929931
// FIXME(compiler-errors): Does this ever actually show up
930932
// anywhere other than the self type? I couldn't create an
931933
// example of a `'_` in the impl's trait being referenceable.

‎compiler/rustc_hir_analysis/src/check/compare_impl_item.rs

Lines changed: 0 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -925,7 +925,6 @@ impl<'tcx> ty::FallibleTypeFolder<TyCtxt<'tcx>> for RemapHiddenTyRegions<'tcx> {
925925
Ok(ty::Region::new_early_param(
926926
self.tcx,
927927
ty::EarlyParamRegion {
928-
def_id: e.def_id,
929928
name: e.name,
930929
index: (e.index as usize - self.num_trait_args + self.num_impl_args) as u32,
931930
},

‎compiler/rustc_hir_analysis/src/check/wfcheck.rs

Lines changed: 3 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -675,11 +675,7 @@ fn gather_gat_bounds<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>(
675675
let region_param = gat_generics.param_at(*region_a_idx, tcx);
676676
let region_param = ty::Region::new_early_param(
677677
tcx,
678-
ty::EarlyParamRegion {
679-
def_id: region_param.def_id,
680-
index: region_param.index,
681-
name: region_param.name,
682-
},
678+
ty::EarlyParamRegion { index: region_param.index, name: region_param.name },
683679
);
684680
// The predicate we expect to see. (In our example,
685681
// `Self: 'me`.)
@@ -708,21 +704,13 @@ fn gather_gat_bounds<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>(
708704
let region_a_param = gat_generics.param_at(*region_a_idx, tcx);
709705
let region_a_param = ty::Region::new_early_param(
710706
tcx,
711-
ty::EarlyParamRegion {
712-
def_id: region_a_param.def_id,
713-
index: region_a_param.index,
714-
name: region_a_param.name,
715-
},
707+
ty::EarlyParamRegion { index: region_a_param.index, name: region_a_param.name },
716708
);
717709
// Same for the region.
718710
let region_b_param = gat_generics.param_at(*region_b_idx, tcx);
719711
let region_b_param = ty::Region::new_early_param(
720712
tcx,
721-
ty::EarlyParamRegion {
722-
def_id: region_b_param.def_id,
723-
index: region_b_param.index,
724-
name: region_b_param.name,
725-
},
713+
ty::EarlyParamRegion { index: region_b_param.index, name: region_b_param.name },
726714
);
727715
// The predicate we expect to see.
728716
bounds.insert(

‎compiler/rustc_hir_analysis/src/collect.rs

Lines changed: 0 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -453,7 +453,6 @@ impl<'tcx> HirTyLowerer<'tcx> for ItemCtxt<'tcx> {
453453
poly_trait_ref,
454454
|_| {
455455
ty::Region::new_early_param(self.tcx, ty::EarlyParamRegion {
456-
def_id: item_def_id,
457456
index: 0,
458457
name: Symbol::intern(&lt_name),
459458
})

‎compiler/rustc_hir_analysis/src/collect/predicates_of.rs

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -323,7 +323,7 @@ fn compute_bidirectional_outlives_predicates<'tcx>(
323323
if let ty::ReEarlyParam(..) = *orig_lifetime {
324324
let dup_lifetime = ty::Region::new_early_param(
325325
tcx,
326-
ty::EarlyParamRegion { def_id: param.def_id, index: param.index, name: param.name },
326+
ty::EarlyParamRegion { index: param.index, name: param.name },
327327
);
328328
let span = tcx.def_span(param.def_id);
329329
predicates.push((

‎compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -280,7 +280,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
280280
let item_def_id = tcx.hir().ty_param_owner(def_id.expect_local());
281281
let generics = tcx.generics_of(item_def_id);
282282
let index = generics.param_def_id_to_index[&def_id];
283-
ty::Region::new_early_param(tcx, ty::EarlyParamRegion { def_id, index, name })
283+
ty::Region::new_early_param(tcx, ty::EarlyParamRegion { index, name })
284284
}
285285

286286
Some(rbv::ResolvedArg::Free(scope, id)) => {

‎compiler/rustc_infer/src/errors/mod.rs

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -5,6 +5,7 @@ use rustc_errors::{
55
MultiSpan, SubdiagMessageOp, Subdiagnostic,
66
};
77
use rustc_hir as hir;
8+
use rustc_hir::def_id::LocalDefId;
89
use rustc_hir::intravisit::{walk_ty, Visitor};
910
use rustc_hir::FnRetTy;
1011
use rustc_macros::{Diagnostic, Subdiagnostic};
@@ -344,6 +345,7 @@ impl Subdiagnostic for LifetimeMismatchLabels {
344345

345346
pub struct AddLifetimeParamsSuggestion<'a> {
346347
pub tcx: TyCtxt<'a>,
348+
pub generic_param_scope: LocalDefId,
347349
pub sub: Region<'a>,
348350
pub ty_sup: &'a hir::Ty<'a>,
349351
pub ty_sub: &'a hir::Ty<'a>,
@@ -357,7 +359,8 @@ impl Subdiagnostic for AddLifetimeParamsSuggestion<'_> {
357359
_f: &F,
358360
) {
359361
let mut mk_suggestion = || {
360-
let Some(anon_reg) = self.tcx.is_suitable_region(self.sub) else {
362+
let Some(anon_reg) = self.tcx.is_suitable_region(self.generic_param_scope, self.sub)
363+
else {
361364
return false;
362365
};
363366

‎compiler/rustc_infer/src/errors/note_and_explain.rs

Lines changed: 15 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,7 @@
11
use crate::fluent_generated as fluent;
22
use crate::infer::error_reporting::nice_region_error::find_anon_type;
33
use rustc_errors::{Diag, EmissionGuarantee, IntoDiagArg, SubdiagMessageOp, Subdiagnostic};
4+
use rustc_hir::def_id::LocalDefId;
45
use rustc_middle::bug;
56
use rustc_middle::ty::{self, TyCtxt};
67
use rustc_span::{symbol::kw, Span};
@@ -14,12 +15,15 @@ struct DescriptionCtx<'a> {
1415
impl<'a> DescriptionCtx<'a> {
1516
fn new<'tcx>(
1617
tcx: TyCtxt<'tcx>,
18+
generic_param_scope: LocalDefId,
1719
region: ty::Region<'tcx>,
1820
alt_span: Option<Span>,
1921
) -> Option<Self> {
2022
let (span, kind, arg) = match *region {
21-
ty::ReEarlyParam(ref br) => {
22-
let scope = region.free_region_binding_scope(tcx).expect_local();
23+
ty::ReEarlyParam(br) => {
24+
let scope = tcx
25+
.parent(tcx.generics_of(generic_param_scope).region_param(br, tcx).def_id)
26+
.expect_local();
2327
let span = if let Some(param) =
2428
tcx.hir().get_generics(scope).and_then(|generics| generics.get_named(br.name))
2529
{
@@ -35,11 +39,12 @@ impl<'a> DescriptionCtx<'a> {
3539
}
3640
ty::ReLateParam(ref fr) => {
3741
if !fr.bound_region.is_named()
38-
&& let Some((ty, _)) = find_anon_type(tcx, region, &fr.bound_region)
42+
&& let Some((ty, _)) =
43+
find_anon_type(tcx, generic_param_scope, region, &fr.bound_region)
3944
{
4045
(Some(ty.span), "defined_here", String::new())
4146
} else {
42-
let scope = region.free_region_binding_scope(tcx).expect_local();
47+
let scope = fr.scope.expect_local();
4348
match fr.bound_region {
4449
ty::BoundRegionKind::BrNamed(_, name) => {
4550
let span = if let Some(param) = tcx
@@ -143,12 +148,17 @@ pub struct RegionExplanation<'a> {
143148
impl RegionExplanation<'_> {
144149
pub fn new<'tcx>(
145150
tcx: TyCtxt<'tcx>,
151+
generic_param_scope: LocalDefId,
146152
region: ty::Region<'tcx>,
147153
alt_span: Option<Span>,
148154
prefix: PrefixKind,
149155
suffix: SuffixKind,
150156
) -> Option<Self> {
151-
Some(Self { desc: DescriptionCtx::new(tcx, region, alt_span)?, prefix, suffix })
157+
Some(Self {
158+
desc: DescriptionCtx::new(tcx, generic_param_scope, region, alt_span)?,
159+
prefix,
160+
suffix,
161+
})
152162
}
153163
}
154164

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