bjoernager/rust
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Initial fixes on top of type interner commit

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This commit is contained in:
Michael Goulet 2022-05-22 12:57:46 -07:00
parent a7015fe816
commit a056a953f0
28 changed files with 171 additions and 134 deletions
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53
compiler/rustc_middle/src/ty/mod.rs
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@ -68,8 +68,8 @@ pub use self::consts::{
pub use self::context::{
tls, CanonicalUserType, CanonicalUserTypeAnnotation, CanonicalUserTypeAnnotations,
CtxtInterners, DelaySpanBugEmitted, FreeRegionInfo, GeneratorDiagnosticData,
GeneratorInteriorTypeCause, GlobalCtxt, Lift, OnDiskCache, TyCtxt, TyInterner, TypeckResults, UserType,
UserTypeAnnotationIndex,
GeneratorInteriorTypeCause, GlobalCtxt, Lift, OnDiskCache, TyCtxt, TyInterner, TypeckResults,
UserType, UserTypeAnnotationIndex,
};
pub use self::instance::{Instance, InstanceDef};
pub use self::list::List;
@ -78,13 +78,13 @@ pub use self::rvalue_scopes::RvalueScopes;
pub use self::sty::BoundRegionKind::*;
pub use self::sty::RegionKind::*;
pub use self::sty::{
Binder, BoundRegion, BoundRegionKind, BoundTy, BoundTyKind, BoundVar, BoundVariableKind,
CanonicalPolyFnSig, ClosureSubsts, ClosureSubstsParts, ConstVid, EarlyBinder, EarlyBoundRegion,
ExistentialPredicate, ExistentialProjection, ExistentialTraitRef, FnSig, FreeRegion, GenSig,
GeneratorSubsts, GeneratorSubstsParts, InlineConstSubsts, InlineConstSubstsParts, ParamConst,
ParamTy, PolyExistentialProjection, PolyExistentialTraitRef, PolyFnSig, PolyGenSig,
PolyTraitRef, ProjectionTy, Region, RegionKind, RegionVid, TraitRef, TyKind, TypeAndMut,
UpvarSubsts, VarianceDiagInfo,
Article, Binder, BoundRegion, BoundRegionKind, BoundTy, BoundTyKind, BoundVar,
BoundVariableKind, CanonicalPolyFnSig, ClosureSubsts, ClosureSubstsParts, ConstVid,
EarlyBinder, EarlyBoundRegion, ExistentialPredicate, ExistentialProjection,
ExistentialTraitRef, FnSig, FreeRegion, GenSig, GeneratorSubsts, GeneratorSubstsParts,
InlineConstSubsts, InlineConstSubstsParts, ParamConst, ParamTy, PolyExistentialProjection,
PolyExistentialTraitRef, PolyFnSig, PolyGenSig, PolyTraitRef, ProjectionTy, Region, RegionKind,
RegionVid, TraitRef, TyKind, TypeAndMut, UpvarSubsts, VarianceDiagInfo,
};
pub use self::trait_def::TraitDef;
@ -463,16 +463,31 @@ pub(crate) struct TyS<'tcx> {
#[rustc_pass_by_value]
pub struct Ty<'tcx>(Interned<'tcx, WithStableHash<TyS<'tcx>>>);
// Statics only used for internal testing.
pub static BOOL_TY: Ty<'static> = Ty(Interned::new_unchecked(&WithStableHash {
internee: BOOL_TYS,
stable_hash: Fingerprint::ZERO,
}));
const BOOL_TYS: TyS<'static> = TyS {
kind: ty::Bool,
flags: TypeFlags::empty(),
outer_exclusive_binder: DebruijnIndex::from_usize(0),
};
const LEAKED_BOOL_TY_ALREADY: std::sync::atomic::AtomicBool =
std::sync::atomic::AtomicBool::new(false);
/// "Static" bool only used for internal testing.
///
/// FIXME(rustc_type_ir): This really should be replaced with something that doesn't leak.
/// however, since it's used for testing, it's not _that_ bad.
pub fn leak_bool_ty_for_unit_testing<'tcx>() -> Ty<'tcx> {
use std::sync::atomic::*;
if LEAKED_BOOL_TY_ALREADY.load(Ordering::Acquire) {
panic!("Can only leak one bool type, since its equality depends on its address");
} else {
LEAKED_BOOL_TY_ALREADY.store(true, Ordering::Release);
}
Ty(Interned::new_unchecked(Box::leak(Box::new(WithStableHash {
internee: TyS {
kind: ty::Bool,
flags: TypeFlags::empty(),
outer_exclusive_binder: DebruijnIndex::from_usize(0),
},
stable_hash: Fingerprint::ZERO,
}))))
}
impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for TyS<'tcx> {
#[inline]