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Rebase and use ena 0.14

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This commit is contained in:
Markus Westerlind 2020-03-16 16:43:03 +01:00
parent fba241fc66
commit b61a28b2a1
10 changed files with 70 additions and 55 deletions
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25
src/librustc_infer/infer/mod.rs
View File

@ -223,7 +223,7 @@ impl<'tcx> InferCtxtInner<'tcx> {
&self.region_obligations
}
pub(crate) fn projection_cache(&mut self) -> traits::ProjectionCache<'tcx, '_> {
pub fn projection_cache(&mut self) -> traits::ProjectionCache<'tcx, '_> {
self.projection_cache.with_log(&mut self.undo_log)
}
@ -1308,19 +1308,21 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
outlives_env: &OutlivesEnvironment<'tcx>,
mode: RegionckMode,
) {
let (var_infos, data) = {
let mut inner = self.inner.borrow_mut();
let inner = &mut *inner;
assert!(
self.is_tainted_by_errors() || self.inner.borrow().region_obligations.is_empty(),
self.is_tainted_by_errors() || inner.region_obligations.is_empty(),
"region_obligations not empty: {:#?}",
self.inner.borrow().region_obligations
inner.region_obligations
);
let (var_infos, data) = self
.inner
.borrow_mut()
inner
.region_constraints
.take()
.expect("regions already resolved")
.with_log(&mut inner.undo_log)
.into_infos_and_data();
.into_infos_and_data()
};
let region_rels = &RegionRelations::new(
self.tcx,
@ -1686,13 +1688,14 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
/// having to resort to storing full `GenericArg`s in `stalled_on`.
#[inline(always)]
pub fn ty_or_const_infer_var_changed(&self, infer_var: TyOrConstInferVar<'tcx>) -> bool {
let mut inner = self.inner.borrow_mut();
match infer_var {
TyOrConstInferVar::Ty(v) => {
use self::type_variable::TypeVariableValue;
// If `inlined_probe` returns a `Known` value, it never equals
// `ty::Infer(ty::TyVar(v))`.
match self.inner.borrow_mut().type_variables().inlined_probe(v) {
match inner.type_variables().inlined_probe(v) {
TypeVariableValue::Unknown { .. } => false,
TypeVariableValue::Known { .. } => true,
}
@ -1702,7 +1705,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
// If `inlined_probe_value` returns a value it's always a
// `ty::Int(_)` or `ty::UInt(_)`, which never matches a
// `ty::Infer(_)`.
self.inner.borrow_mut().int_unification_table().inlined_probe_value(v).is_some()
inner.int_unification_table().inlined_probe_value(v).is_some()
}
TyOrConstInferVar::TyFloat(v) => {
@ -1710,7 +1713,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
// `ty::Float(_)`, which never matches a `ty::Infer(_)`.
//
// Not `inlined_probe_value(v)` because this call site is colder.
self.inner.borrow_mut().float_unification_table().probe_value(v).is_some()
inner.float_unification_table().probe_value(v).is_some()
}
TyOrConstInferVar::Const(v) => {
@ -1718,7 +1721,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
// `ty::ConstKind::Infer(ty::InferConst::Var(v))`.
//
// Not `inlined_probe_value(v)` because this call site is colder.
match self.inner.borrow_mut().const_unification_table.probe_value(v).val {
match inner.const_unification_table().probe_value(v).val {
ConstVariableValue::Unknown { .. } => false,
ConstVariableValue::Known { .. } => true,
}

2
src/librustc_infer/infer/undo_log.rs
View File

@ -1,10 +1,10 @@
use std::marker::PhantomData;
use rustc::ty;
use rustc_data_structures::snapshot_vec as sv;
use rustc_data_structures::undo_log::{Rollback, Snapshots, UndoLogs};
use rustc_data_structures::unify as ut;
use rustc_hir as hir;
use rustc_middle::ty;
use crate::{
infer::{

2
src/librustc_infer/traits/mod.rs
View File

@ -23,7 +23,7 @@ pub use self::project::MismatchedProjectionTypes;
pub(crate) use self::project::UndoLog;
pub use self::project::{
Normalized, NormalizedTy, ProjectionCache, ProjectionCacheEntry, ProjectionCacheKey,
ProjectionCacheSnapshot, Reveal,
ProjectionCacheStorage, Reveal,
};
crate use self::util::elaborate_predicates;

8
src/librustc_infer/traits/project.rs
View File

@ -2,8 +2,12 @@
use super::PredicateObligation;
use rustc_data_structures::snapshot_map::{self, SnapshotMapRef, SnapshotMapStorage};
use rustc_middle::ty::fold::TypeFoldable;
use crate::infer::InferCtxtUndoLogs;
use rustc_data_structures::{
snapshot_map::{self, SnapshotMapRef, SnapshotMapStorage},
undo_log::Rollback,
};
use rustc_middle::ty::{self, Ty};
pub use rustc_middle::traits::Reveal;

24
src/librustc_middle/hir/map/mod.rs
View File

@ -311,16 +311,19 @@ impl<'hir> Map<'hir> {
}
fn find_entry(&self, id: HirId) -> Option<Entry<'hir>> {
if id.local_id == ItemLocalId::from_u32_const(0) {
let owner = self.tcx.hir_owner(id.owner_def_id());
if id.local_id == ItemLocalId::from_u32(0) {
let owner = self.tcx.hir_owner(id.owner);
owner.map(|owner| Entry { parent: owner.parent, node: owner.node })
} else {
let owner = self.tcx.hir_owner_items(id.owner_def_id());
let owner = self.tcx.hir_owner_nodes(id.owner);
owner.and_then(|owner| {
let item = owner.items[id.local_id].as_ref();
item.map(|item| Entry {
parent: HirId { owner: id.owner, local_id: item.parent },
node: item.node,
let node = owner.nodes[id.local_id].as_ref();
// FIXME(eddyb) use a single generic type insted of having both
// `Entry` and `ParentedNode`, which are effectively the same.
// Alternatively, rewrite code using `Entry` to use `ParentedNode`.
node.map(|node| Entry {
parent: HirId { owner: id.owner, local_id: node.parent },
node: node.node,
})
})
}
@ -352,12 +355,7 @@ impl<'hir> Map<'hir> {
}
pub fn body(&self, id: BodyId) -> &'hir Body<'hir> {
self.tcx
.hir_owner_items(DefId::local(id.hir_id.owner))
.unwrap()
.bodies
.get(&id.hir_id.local_id)
.unwrap()
self.tcx.hir_owner_nodes(id.hir_id.owner).unwrap().bodies.get(&id.hir_id.local_id).unwrap()
}
pub fn fn_decl_by_hir_id(&self, hir_id: HirId) -> Option<&'hir FnDecl<'hir>> {

6
src/librustc_middle/hir/mod.rs
View File

@ -77,8 +77,8 @@ pub fn provide(providers: &mut Providers<'_>) {
let module = hir.as_local_hir_id(id);
&tcx.untracked_crate.modules[&module]
};
providers.hir_owner = |tcx, id| tcx.index_hir(id.krate).map[id.index].signature;
providers.hir_owner_items =
|tcx, id| tcx.index_hir(id.krate).map[id.index].with_bodies.as_ref().map(|items| &**items);
providers.hir_owner = |tcx, id| tcx.index_hir(LOCAL_CRATE).map[id].signature;
providers.hir_owner_nodes =
|tcx, id| tcx.index_hir(LOCAL_CRATE).map[id].with_bodies.as_ref().map(|nodes| &**nodes);
map::provide(providers);
}

4
src/librustc_middle/query/mod.rs
View File

@ -75,7 +75,7 @@ rustc_queries! {
//
// This can be conveniently accessed by methods on `tcx.hir()`.
// Avoid calling this query directly.
query hir_owner(key: DefId) -> Option<&'tcx HirOwner<'tcx>> {
query hir_owner(key: LocalDefId) -> Option<&'tcx crate::hir::Owner<'tcx>> {
eval_always
desc { |tcx| "HIR owner of `{}`", tcx.def_path_str(key.to_def_id()) }
}
@ -84,7 +84,7 @@ rustc_queries! {
//
// This can be conveniently accessed by methods on `tcx.hir()`.
// Avoid calling this query directly.
query hir_owner_items(key: DefId) -> Option<&'tcx HirOwnerItems<'tcx>> {
query hir_owner_nodes(key: LocalDefId) -> Option<&'tcx crate::hir::OwnerNodes<'tcx>> {
eval_always
desc { |tcx| "HIR owner items in `{}`", tcx.def_path_str(key.to_def_id()) }
}

26
src/librustc_trait_selection/traits/fulfill.rs
View File

@ -240,9 +240,15 @@ struct FulfillProcessor<'a, 'b, 'tcx> {
register_region_obligations: bool,
}
fn mk_pending(os: Vec<PredicateObligation<'tcx>>) -> Vec<PendingPredicateObligation<'tcx>> {
fn mk_pending(
infcx: &InferCtxt<'_, 'tcx>,
os: Vec<PredicateObligation<'tcx>>,
) -> Vec<PendingPredicateObligation<'tcx>> {
os.into_iter()
.map(|o| PendingPredicateObligation { obligation: o, stalled_on: vec![] })
.map(|mut o| {
o.predicate = infcx.resolve_vars_if_possible(&o.predicate);
PendingPredicateObligation { obligation: o, stalled_on: vec![] }
})
.collect()
}
@ -312,6 +318,8 @@ impl<'a, 'b, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'b, 'tcx> {
debug!("process_obligation: obligation = {:?} cause = {:?}", obligation, obligation.cause);
let infcx = self.selcx.infcx();
match obligation.predicate {
ty::Predicate::Trait(ref data, _) => {
let trait_obligation = obligation.with(*data);
@ -319,7 +327,7 @@ impl<'a, 'b, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'b, 'tcx> {
if data.is_global() {
// no type variables present, can use evaluation for better caching.
// FIXME: consider caching errors too.
if self.selcx.infcx().predicate_must_hold_considering_regions(&obligation) {
if infcx.predicate_must_hold_considering_regions(&obligation) {
debug!(
"selecting trait `{:?}` at depth {} evaluated to holds",
data, obligation.recursion_depth
@ -334,7 +342,7 @@ impl<'a, 'b, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'b, 'tcx> {
"selecting trait `{:?}` at depth {} yielded Ok(Some)",
data, obligation.recursion_depth
);
ProcessResult::Changed(mk_pending(vtable.nested_obligations()))
ProcessResult::Changed(mk_pending(infcx, vtable.nested_obligations()))
}
Ok(None) => {
debug!(
@ -351,7 +359,7 @@ impl<'a, 'b, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'b, 'tcx> {
debug!(
"process_predicate: pending obligation {:?} now stalled on {:?}",
self.selcx.infcx().resolve_vars_if_possible(obligation),
infcx.resolve_vars_if_possible(obligation),
pending_obligation.stalled_on
);
@ -369,7 +377,7 @@ impl<'a, 'b, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'b, 'tcx> {
}
ty::Predicate::RegionOutlives(ref binder) => {
match self.selcx.infcx().region_outlives_predicate(&obligation.cause, binder) {
match infcx.region_outlives_predicate(&obligation.cause, binder) {
Ok(()) => ProcessResult::Changed(vec![]),
Err(_) => ProcessResult::Error(CodeSelectionError(Unimplemented)),
}
@ -428,7 +436,7 @@ impl<'a, 'b, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'b, 'tcx> {
trait_ref_type_vars(self.selcx, data.to_poly_trait_ref(tcx));
ProcessResult::Unchanged
}
Ok(Some(os)) => ProcessResult::Changed(mk_pending(os)),
Ok(Some(os)) => ProcessResult::Changed(mk_pending(infcx, os)),
Err(e) => ProcessResult::Error(CodeProjectionError(e)),
}
}
@ -467,7 +475,7 @@ impl<'a, 'b, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'b, 'tcx> {
vec![TyOrConstInferVar::maybe_from_ty(ty).unwrap()];
ProcessResult::Unchanged
}
Some(os) => ProcessResult::Changed(mk_pending(os)),
Some(os) => ProcessResult::Changed(mk_pending(infcx, os)),
}
}
@ -485,7 +493,7 @@ impl<'a, 'b, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'b, 'tcx> {
];
ProcessResult::Unchanged
}
Some(Ok(ok)) => ProcessResult::Changed(mk_pending(ok.obligations)),
Some(Ok(ok)) => ProcessResult::Changed(mk_pending(infcx, ok.obligations)),
Some(Err(err)) => {
let expected_found = ExpectedFound::new(
subtype.skip_binder().a_is_expected,

12
src/librustc_trait_selection/traits/project.rs
View File

@ -471,7 +471,7 @@ fn opt_normalize_projection_type<'a, 'b, 'tcx>(
// bounds. It might be the case that we want two distinct caches,
// or else another kind of cache entry.
let cache_result = infcx.inner.borrow_mut().projection_cache.try_start(cache_key);
let cache_result = infcx.inner.borrow_mut().projection_cache().try_start(cache_key);
match cache_result {
Ok(()) => {}
Err(ProjectionCacheEntry::Ambiguous) => {
@ -537,7 +537,7 @@ fn opt_normalize_projection_type<'a, 'b, 'tcx>(
// Once we have inferred everything we need to know, we
// can ignore the `obligations` from that point on.
if infcx.unresolved_type_vars(&ty.value).is_none() {
infcx.inner.borrow_mut().projection_cache.complete_normalized(cache_key, &ty);
infcx.inner.borrow_mut().projection_cache().complete_normalized(cache_key, &ty);
// No need to extend `obligations`.
} else {
obligations.extend(ty.obligations);
@ -604,7 +604,7 @@ fn opt_normalize_projection_type<'a, 'b, 'tcx>(
};
let cache_value = prune_cache_value_obligations(infcx, &result);
infcx.inner.borrow_mut().projection_cache.insert_ty(cache_key, cache_value);
infcx.inner.borrow_mut().projection_cache().insert_ty(cache_key, cache_value);
obligations.extend(result.obligations);
Some(result.value)
}
@ -615,7 +615,7 @@ fn opt_normalize_projection_type<'a, 'b, 'tcx>(
projected_ty
);
let result = Normalized { value: projected_ty, obligations: vec![] };
infcx.inner.borrow_mut().projection_cache.insert_ty(cache_key, result.clone());
infcx.inner.borrow_mut().projection_cache().insert_ty(cache_key, result.clone());
// No need to extend `obligations`.
Some(result.value)
}
@ -624,7 +624,7 @@ fn opt_normalize_projection_type<'a, 'b, 'tcx>(
"opt_normalize_projection_type: \
too many candidates"
);
infcx.inner.borrow_mut().projection_cache.ambiguous(cache_key);
infcx.inner.borrow_mut().projection_cache().ambiguous(cache_key);
None
}
Err(ProjectionTyError::TraitSelectionError(_)) => {
@ -634,7 +634,7 @@ fn opt_normalize_projection_type<'a, 'b, 'tcx>(
// Trait`, which when processed will cause the error to be
// reported later
infcx.inner.borrow_mut().projection_cache.error(cache_key);
infcx.inner.borrow_mut().projection_cache().error(cache_key);
let result = normalize_to_error(selcx, param_env, projection_ty, cause, depth);
obligations.extend(result.obligations);
Some(result.value)

2
src/test/ui/issues/issue-70041.rs
View File

@ -2,10 +2,12 @@
// run-pass
macro_rules! regex {
//~^ WARN unused macro definition
() => {};
}
#[allow(dead_code)]
use regex;
//~^ WARN unused import
fn main() {}