bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

compiler: fold by value

Browse source
This commit is contained in:
Bastian Kauschke 2020-10-24 02:21:18 +02:00
parent 3ec6720bf1
commit 2bf93bd852
140 changed files with 679 additions and 699 deletions
Download patch file Download diff file Expand all files Collapse all files

100
compiler/rustc_middle/src/ty/structural_impls.rs
View file

@ -7,6 +7,7 @@ use crate::mir::ProjectionKind;
use crate::ty::fold::{TypeFoldable, TypeFolder, TypeVisitor};
use crate::ty::print::{with_no_trimmed_paths, FmtPrinter, Printer};
use crate::ty::{self, InferConst, Lift, Ty, TyCtxt};
use rustc_data_structures::functor::IdFunctor;
use rustc_hir as hir;
use rustc_hir::def::Namespace;
use rustc_hir::def_id::CRATE_DEF_INDEX;
@ -725,8 +726,8 @@ impl<'a, 'tcx> Lift<'tcx> for ty::InstanceDef<'a> {
/// AdtDefs are basically the same as a DefId.
impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::AdtDef {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, _folder: &mut F) -> Self {
*self
fn super_fold_with<F: TypeFolder<'tcx>>(self, _folder: &mut F) -> Self {
self
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> ControlFlow<()> {
@ -735,7 +736,7 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::AdtDef {
}
impl<'tcx, T: TypeFoldable<'tcx>, U: TypeFoldable<'tcx>> TypeFoldable<'tcx> for (T, U) {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> (T, U) {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> (T, U) {
(self.0.fold_with(folder), self.1.fold_with(folder))
}
@ -748,7 +749,7 @@ impl<'tcx, T: TypeFoldable<'tcx>, U: TypeFoldable<'tcx>> TypeFoldable<'tcx> for
impl<'tcx, A: TypeFoldable<'tcx>, B: TypeFoldable<'tcx>, C: TypeFoldable<'tcx>> TypeFoldable<'tcx>
for (A, B, C)
{
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> (A, B, C) {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> (A, B, C) {
(self.0.fold_with(folder), self.1.fold_with(folder), self.2.fold_with(folder))
}
@ -774,8 +775,9 @@ EnumTypeFoldableImpl! {
}
impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Rc<T> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
Rc::new((**self).fold_with(folder))
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
// FIXME: Reuse the `Rc` here.
Rc::new((*self).clone().fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -784,8 +786,9 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Rc<T> {
}
impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Arc<T> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
Arc::new((**self).fold_with(folder))
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
// FIXME: Reuse the `Arc` here.
Arc::new((*self).clone().fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -794,9 +797,8 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Arc<T> {
}
impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Box<T> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
let content: T = (**self).fold_with(folder);
box content
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
self.map_id(|value| value.fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -805,8 +807,8 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Box<T> {
}
impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Vec<T> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
self.iter().map(|t| t.fold_with(folder)).collect()
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
self.map_id(|t| t.fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -815,8 +817,8 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Vec<T> {
}
impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Box<[T]> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
self.iter().map(|t| t.fold_with(folder)).collect::<Vec<_>>().into_boxed_slice()
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
self.map_id(|t| t.fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -825,11 +827,11 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Box<[T]> {
}
impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for ty::Binder<T> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
self.map_bound_ref(|ty| ty.fold_with(folder))
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
self.map_bound(|ty| ty.fold_with(folder))
}
fn fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
fn fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
folder.fold_binder(self)
}
@ -843,8 +845,8 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for ty::Binder<T> {
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ty::ExistentialPredicate<'tcx>> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
fold_list(*self, folder, |tcx, v| tcx.intern_existential_predicates(v))
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
fold_list(self, folder, |tcx, v| tcx.intern_existential_predicates(v))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -853,8 +855,8 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ty::ExistentialPredicate<'tcx>>
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<Ty<'tcx>> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
fold_list(*self, folder, |tcx, v| tcx.intern_type_list(v))
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
fold_list(self, folder, |tcx, v| tcx.intern_type_list(v))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -863,8 +865,8 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<Ty<'tcx>> {
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ProjectionKind> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
fold_list(*self, folder, |tcx, v| tcx.intern_projs(v))
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
fold_list(self, folder, |tcx, v| tcx.intern_projs(v))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -873,7 +875,7 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ProjectionKind> {
}
impl<'tcx> TypeFoldable<'tcx> for ty::instance::Instance<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
use crate::ty::InstanceDef::*;
Self {
substs: self.substs.fold_with(folder),
@ -915,7 +917,7 @@ impl<'tcx> TypeFoldable<'tcx> for ty::instance::Instance<'tcx> {
}
impl<'tcx> TypeFoldable<'tcx> for interpret::GlobalId<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
Self { instance: self.instance.fold_with(folder), promoted: self.promoted }
}
@ -925,7 +927,7 @@ impl<'tcx> TypeFoldable<'tcx> for interpret::GlobalId<'tcx> {
}
impl<'tcx> TypeFoldable<'tcx> for Ty<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
let kind = match self.kind() {
ty::RawPtr(tm) => ty::RawPtr(tm.fold_with(folder)),
ty::Array(typ, sz) => ty::Array(typ.fold_with(folder), sz.fold_with(folder)),
@ -964,8 +966,8 @@ impl<'tcx> TypeFoldable<'tcx> for Ty<'tcx> {
if *self.kind() == kind { self } else { folder.tcx().mk_ty(kind) }
}
fn fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
folder.fold_ty(*self)
fn fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
folder.fold_ty(self)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -1016,12 +1018,12 @@ impl<'tcx> TypeFoldable<'tcx> for Ty<'tcx> {
}
impl<'tcx> TypeFoldable<'tcx> for ty::Region<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, _folder: &mut F) -> Self {
*self
fn super_fold_with<F: TypeFolder<'tcx>>(self, _folder: &mut F) -> Self {
self
}
fn fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
folder.fold_region(*self)
fn fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
folder.fold_region(self)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> ControlFlow<()> {
@ -1034,9 +1036,9 @@ impl<'tcx> TypeFoldable<'tcx> for ty::Region<'tcx> {
}
impl<'tcx> TypeFoldable<'tcx> for ty::Predicate<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
let new = ty::PredicateKind::super_fold_with(&self.inner.kind, folder);
folder.tcx().reuse_or_mk_predicate(*self, new)
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
let new = ty::PredicateKind::super_fold_with(self.inner.kind, folder);
folder.tcx().reuse_or_mk_predicate(self, new)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -1057,8 +1059,8 @@ impl<'tcx> TypeFoldable<'tcx> for ty::Predicate<'tcx> {
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ty::Predicate<'tcx>> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
fold_list(*self, folder, |tcx, v| tcx.intern_predicates(v))
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
fold_list(self, folder, |tcx, v| tcx.intern_predicates(v))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -1067,8 +1069,8 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ty::Predicate<'tcx>> {
}
impl<'tcx, T: TypeFoldable<'tcx>, I: Idx> TypeFoldable<'tcx> for IndexVec<I, T> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
self.iter().map(|x| x.fold_with(folder)).collect()
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
self.map_id(|x| x.fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -1077,18 +1079,18 @@ impl<'tcx, T: TypeFoldable<'tcx>, I: Idx> TypeFoldable<'tcx> for IndexVec<I, T>
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::Const<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
let ty = self.ty.fold_with(folder);
let val = self.val.fold_with(folder);
if ty != self.ty || val != self.val {
folder.tcx().mk_const(ty::Const { ty, val })
} else {
*self
self
}
}
fn fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
folder.fold_const(*self)
fn fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
folder.fold_const(self)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
@ -1102,8 +1104,8 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::Const<'tcx> {
}
impl<'tcx> TypeFoldable<'tcx> for ty::ConstKind<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> Self {
match *self {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
match self {
ty::ConstKind::Infer(ic) => ty::ConstKind::Infer(ic.fold_with(folder)),
ty::ConstKind::Param(p) => ty::ConstKind::Param(p.fold_with(folder)),
ty::ConstKind::Unevaluated(did, substs, promoted) => {
@ -1112,7 +1114,7 @@ impl<'tcx> TypeFoldable<'tcx> for ty::ConstKind<'tcx> {
ty::ConstKind::Value(_)
| ty::ConstKind::Bound(..)
| ty::ConstKind::Placeholder(..)
| ty::ConstKind::Error(_) => *self,
| ty::ConstKind::Error(_) => self,
}
}
@ -1130,8 +1132,8 @@ impl<'tcx> TypeFoldable<'tcx> for ty::ConstKind<'tcx> {
}
impl<'tcx> TypeFoldable<'tcx> for InferConst<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, _folder: &mut F) -> Self {
*self
fn super_fold_with<F: TypeFolder<'tcx>>(self, _folder: &mut F) -> Self {
self
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> ControlFlow<()> {