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eddybeddyb
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rustc: keep upvars tupled in {Closure,Generator}Substs.
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-330
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65 files changed

+348
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‎src/librustc/traits/query.rs‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -229,8 +229,8 @@ pub fn trivial_dropck_outlives<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> bool {
229229
// (T1..Tn) and closures have same properties as T1..Tn --
230230
// check if *any* of those are trivial.
231231
ty::Tuple(ref tys) => tys.iter().all(|t| trivial_dropck_outlives(tcx, t.expect_ty())),
232-
ty::Closure(def_id, ref substs) => {
233-
substs.as_closure().upvar_tys(def_id, tcx).all(|t| trivial_dropck_outlives(tcx, t))
232+
ty::Closure(_, ref substs) => {
233+
substs.as_closure().upvar_tys().all(|t| trivial_dropck_outlives(tcx, t))
234234
}
235235

236236
ty::Adt(def, _) => {

‎src/librustc/ty/instance.rs‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -329,7 +329,7 @@ impl<'tcx> Instance<'tcx> {
329329
substs: ty::SubstsRef<'tcx>,
330330
requested_kind: ty::ClosureKind,
331331
) -> Instance<'tcx> {
332-
let actual_kind = substs.as_closure().kind(def_id, tcx);
332+
let actual_kind = substs.as_closure().kind();
333333

334334
match needs_fn_once_adapter_shim(actual_kind, requested_kind) {
335335
Ok(true) => Instance::fn_once_adapter_instance(tcx, def_id, substs),
@@ -360,7 +360,7 @@ impl<'tcx> Instance<'tcx> {
360360

361361
let self_ty = tcx.mk_closure(closure_did, substs);
362362

363-
let sig = substs.as_closure().sig(closure_did, tcx);
363+
let sig = substs.as_closure().sig();
364364
let sig = tcx.normalize_erasing_late_bound_regions(ty::ParamEnv::reveal_all(), &sig);
365365
assert_eq!(sig.inputs().len(), 1);
366366
let substs = tcx.mk_substs_trait(self_ty, &[sig.inputs()[0].into()]);

‎src/librustc/ty/layout.rs‎

Lines changed: 9 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -634,8 +634,8 @@ impl<'tcx> LayoutCx<'tcx, TyCtxt<'tcx>> {
634634

635635
ty::Generator(def_id, substs, _) => self.generator_layout(ty, def_id, substs)?,
636636

637-
ty::Closure(def_id, ref substs) => {
638-
let tys = substs.as_closure().upvar_tys(def_id, tcx);
637+
ty::Closure(_, ref substs) => {
638+
let tys = substs.as_closure().upvar_tys();
639639
univariant(
640640
&tys.map(|ty| self.layout_of(ty)).collect::<Result<Vec<_>, _>>()?,
641641
&ReprOptions::default(),
@@ -1408,7 +1408,7 @@ impl<'tcx> LayoutCx<'tcx, TyCtxt<'tcx>> {
14081408
// Build a prefix layout, including "promoting" all ineligible
14091409
// locals as part of the prefix. We compute the layout of all of
14101410
// these fields at once to get optimal packing.
1411-
let discr_index = substs.as_generator().prefix_tys(def_id, tcx).count();
1411+
let discr_index = substs.as_generator().prefix_tys().count();
14121412
// FIXME(eddyb) set the correct vaidity range for the discriminant.
14131413
let discr_layout = self.layout_of(substs.as_generator().discr_ty(tcx))?;
14141414
let discr = match &discr_layout.abi {
@@ -1422,7 +1422,7 @@ impl<'tcx> LayoutCx<'tcx, TyCtxt<'tcx>> {
14221422
.map(|ty| self.layout_of(ty));
14231423
let prefix_layouts = substs
14241424
.as_generator()
1425-
.prefix_tys(def_id, tcx)
1425+
.prefix_tys()
14261426
.map(|ty| self.layout_of(ty))
14271427
.chain(iter::once(Ok(discr_layout)))
14281428
.chain(promoted_layouts)
@@ -2094,9 +2094,7 @@ where
20942094
ty::Str => tcx.types.u8,
20952095

20962096
// Tuples, generators and closures.
2097-
ty::Closure(def_id, ref substs) => {
2098-
substs.as_closure().upvar_tys(def_id, tcx).nth(i).unwrap()
2099-
}
2097+
ty::Closure(_, ref substs) => substs.as_closure().upvar_tys().nth(i).unwrap(),
21002098

21012099
ty::Generator(def_id, ref substs, _) => match this.variants {
21022100
Variants::Single { index } => substs
@@ -2110,7 +2108,7 @@ where
21102108
if i == discr_index {
21112109
return discr_layout(discr);
21122110
}
2113-
substs.as_generator().prefix_tys(def_id, tcx).nth(i).unwrap()
2111+
substs.as_generator().prefix_tys().nth(i).unwrap()
21142112
}
21152113
},
21162114

@@ -2297,7 +2295,7 @@ impl<'tcx> ty::Instance<'tcx> {
22972295
sig
22982296
}
22992297
ty::Closure(def_id, substs) => {
2300-
let sig = substs.as_closure().sig(def_id, tcx);
2298+
let sig = substs.as_closure().sig();
23012299

23022300
let env_ty = tcx.closure_env_ty(def_id, substs).unwrap();
23032301
sig.map_bound(|sig| tcx.mk_fn_sig(
@@ -2308,8 +2306,8 @@ impl<'tcx> ty::Instance<'tcx> {
23082306
sig.abi
23092307
))
23102308
}
2311-
ty::Generator(def_id, substs, _) => {
2312-
let sig = substs.as_generator().poly_sig(def_id, tcx);
2309+
ty::Generator(_, substs, _) => {
2310+
let sig = substs.as_generator().poly_sig();
23132311

23142312
let env_region = ty::ReLateBound(ty::INNERMOST, ty::BrEnv);
23152313
let env_ty = tcx.mk_mut_ref(tcx.mk_region(env_region), ty);

‎src/librustc/ty/outlives.rs‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -61,15 +61,15 @@ fn compute_components(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, out: &mut SmallVec<[Compo
6161
// in the `subtys` iterator (e.g., when encountering a
6262
// projection).
6363
match ty.kind {
64-
ty::Closure(def_id, ref substs) => {
65-
for upvar_ty in substs.as_closure().upvar_tys(def_id, tcx) {
64+
ty::Closure(_, ref substs) => {
65+
for upvar_ty in substs.as_closure().upvar_tys() {
6666
compute_components(tcx, upvar_ty, out);
6767
}
6868
}
6969

70-
ty::Generator(def_id, ref substs, _) => {
70+
ty::Generator(_, ref substs, _) => {
7171
// Same as the closure case
72-
for upvar_ty in substs.as_generator().upvar_tys(def_id, tcx) {
72+
for upvar_ty in substs.as_generator().upvar_tys() {
7373
compute_components(tcx, upvar_ty, out);
7474
}
7575

‎src/librustc/ty/print/pretty.rs‎

Lines changed: 54 additions & 30 deletions
Original file line numberDiff line numberDiff line change
@@ -608,8 +608,6 @@ pub trait PrettyPrinter<'tcx>:
608608
}
609609
ty::Str => p!(write("str")),
610610
ty::Generator(did, substs, movability) => {
611-
let upvar_tys = substs.as_generator().upvar_tys(did, self.tcx());
612-
let witness = substs.as_generator().witness(did, self.tcx());
613611
match movability {
614612
hir::Movability::Movable => p!(write("[generator")),
615613
hir::Movability::Static => p!(write("[static generator")),
@@ -618,31 +616,47 @@ pub trait PrettyPrinter<'tcx>:
618616
// FIXME(eddyb) should use `def_span`.
619617
if let Some(hir_id) = self.tcx().hir().as_local_hir_id(did) {
620618
p!(write("@{:?}", self.tcx().hir().span(hir_id)));
621-
let mut sep = " ";
622-
for (&var_id, upvar_ty) in
623-
self.tcx().upvars(did).as_ref().iter().flat_map(|v| v.keys()).zip(upvar_tys)
624-
{
625-
p!(write("{}{}:", sep, self.tcx().hir().name(var_id)), print(upvar_ty));
626-
sep = ", ";
619+
620+
if substs.as_generator().is_valid() {
621+
let upvar_tys = substs.as_generator().upvar_tys();
622+
let mut sep = " ";
623+
for (&var_id, upvar_ty) in self
624+
.tcx()
625+
.upvars(did)
626+
.as_ref()
627+
.iter()
628+
.flat_map(|v| v.keys())
629+
.zip(upvar_tys)
630+
{
631+
p!(write("{}{}:", sep, self.tcx().hir().name(var_id)), print(upvar_ty));
632+
sep = ", ";
633+
}
627634
}
628635
} else {
629636
// Cross-crate closure types should only be
630637
// visible in codegen bug reports, I imagine.
631638
p!(write("@{:?}", did));
632-
let mut sep = " ";
633-
for (index, upvar_ty) in upvar_tys.enumerate() {
634-
p!(write("{}{}:", sep, index), print(upvar_ty));
635-
sep = ", ";
639+
640+
if substs.as_generator().is_valid() {
641+
let upvar_tys = substs.as_generator().upvar_tys();
642+
let mut sep = " ";
643+
for (index, upvar_ty) in upvar_tys.enumerate() {
644+
p!(write("{}{}:", sep, index), print(upvar_ty));
645+
sep = ", ";
646+
}
636647
}
637648
}
638649

639-
p!(write(" "), print(witness), write("]"))
650+
if substs.as_generator().is_valid() {
651+
p!(write(" "), print(substs.as_generator().witness()));
652+
}
653+
654+
p!(write("]"))
640655
}
641656
ty::GeneratorWitness(types) => {
642657
p!(in_binder(&types));
643658
}
644659
ty::Closure(did, substs) => {
645-
let upvar_tys = substs.as_closure().upvar_tys(did, self.tcx());
646660
p!(write("[closure"));
647661

648662
// FIXME(eddyb) should use `def_span`.
@@ -652,30 +666,40 @@ pub trait PrettyPrinter<'tcx>:
652666
} else {
653667
p!(write("@{:?}", self.tcx().hir().span(hir_id)));
654668
}
655-
let mut sep = " ";
656-
for (&var_id, upvar_ty) in
657-
self.tcx().upvars(did).as_ref().iter().flat_map(|v| v.keys()).zip(upvar_tys)
658-
{
659-
p!(write("{}{}:", sep, self.tcx().hir().name(var_id)), print(upvar_ty));
660-
sep = ", ";
669+
670+
if substs.as_closure().is_valid() {
671+
let upvar_tys = substs.as_closure().upvar_tys();
672+
let mut sep = " ";
673+
for (&var_id, upvar_ty) in self
674+
.tcx()
675+
.upvars(did)
676+
.as_ref()
677+
.iter()
678+
.flat_map(|v| v.keys())
679+
.zip(upvar_tys)
680+
{
681+
p!(write("{}{}:", sep, self.tcx().hir().name(var_id)), print(upvar_ty));
682+
sep = ", ";
683+
}
661684
}
662685
} else {
663686
// Cross-crate closure types should only be
664687
// visible in codegen bug reports, I imagine.
665688
p!(write("@{:?}", did));
666-
let mut sep = " ";
667-
for (index, upvar_ty) in upvar_tys.enumerate() {
668-
p!(write("{}{}:", sep, index), print(upvar_ty));
669-
sep = ", ";
689+
690+
if substs.as_closure().is_valid() {
691+
let upvar_tys = substs.as_closure().upvar_tys();
692+
let mut sep = " ";
693+
for (index, upvar_ty) in upvar_tys.enumerate() {
694+
p!(write("{}{}:", sep, index), print(upvar_ty));
695+
sep = ", ";
696+
}
670697
}
671698
}
672699

673-
if self.tcx().sess.verbose() {
674-
p!(write(
675-
" closure_kind_ty={:?} closure_sig_ty={:?}",
676-
substs.as_closure().kind_ty(did, self.tcx()),
677-
substs.as_closure().sig_ty(did, self.tcx())
678-
));
700+
if self.tcx().sess.verbose() && substs.as_closure().is_valid() {
701+
p!(write(" closure_kind_ty="), print(substs.as_closure().kind_ty()));
702+
p!(write(" closure_sig_ty="), print(substs.as_closure().sig_ty()));
679703
}
680704

681705
p!(write("]"))

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