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Make fields on AbstractConst private

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This commit is contained in:
Ethan Brierley 2021-09-04 16:28:55 +01:00
parent 6e4061819f
commit fc5633fed6
3 changed files with 13 additions and 13 deletions
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2
compiler/rustc_privacy/src/lib.rs
View File

@ -153,7 +153,7 @@ where
tcx: TyCtxt<'tcx>,
ct: AbstractConst<'tcx>,
) -> ControlFlow<V::BreakTy> {
const_evaluatable::walk_abstract_const(tcx, ct, |node| match node.root(tcx, ct.substs) {
const_evaluatable::walk_abstract_const(tcx, ct, |node| match node.root(tcx) {
ACNode::Leaf(leaf) => self.visit_const(leaf),
ACNode::Cast(_, _, ty) => self.visit_ty(ty),
ACNode::Binop(..) | ACNode::UnaryOp(..) | ACNode::FunctionCall(_, _) => {

22
compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
View File

@ -16,7 +16,7 @@ use rustc_infer::infer::InferCtxt;
use rustc_middle::mir::abstract_const::{Node, NodeId, NotConstEvaluatable};
use rustc_middle::mir::interpret::ErrorHandled;
use rustc_middle::mir::{self, Rvalue, StatementKind, TerminatorKind};
use rustc_middle::ty::subst::{GenericArg, Subst, SubstsRef};
use rustc_middle::ty::subst::{Subst, SubstsRef};
use rustc_middle::ty::{self, TyCtxt, TypeFoldable};
use rustc_session::lint;
use rustc_span::def_id::LocalDefId;
@ -80,7 +80,7 @@ pub fn is_const_evaluatable<'cx, 'tcx>(
Concrete,
}
let mut failure_kind = FailureKind::Concrete;
walk_abstract_const::<!, _>(tcx, ct, |node| match node.root(tcx, ct.substs) {
walk_abstract_const::<!, _>(tcx, ct, |node| match node.root(tcx) {
Node::Leaf(leaf) => {
if leaf.has_infer_types_or_consts() {
failure_kind = FailureKind::MentionsInfer;
@ -185,8 +185,8 @@ pub fn is_const_evaluatable<'cx, 'tcx>(
pub struct AbstractConst<'tcx> {
// FIXME: Consider adding something like `IndexSlice`
// and use this here.
pub inner: &'tcx [Node<'tcx>],
pub substs: SubstsRef<'tcx>,
inner: &'tcx [Node<'tcx>],
substs: SubstsRef<'tcx>,
}
impl<'tcx> AbstractConst<'tcx> {
@ -216,10 +216,10 @@ impl<'tcx> AbstractConst<'tcx> {
}
#[inline]
pub fn root(self, tcx: TyCtxt<'tcx>, substs: &[GenericArg<'tcx>]) -> Node<'tcx> {
let mut node = self.inner.last().copied().unwrap();
pub fn root(self, tcx: TyCtxt<'tcx>) -> Node<'tcx> {
let node = self.inner.last().copied().unwrap();
if let Node::Leaf(leaf) = node {
node = Node::Leaf(leaf.subst(tcx, substs));
return Node::Leaf(leaf.subst(tcx, self.substs));
}
node
}
@ -589,7 +589,7 @@ where
f: &mut dyn FnMut(AbstractConst<'tcx>) -> ControlFlow<R>,
) -> ControlFlow<R> {
f(ct)?;
let root = ct.root(tcx, ct.substs);
let root = ct.root(tcx);
match root {
Node::Leaf(_) => ControlFlow::CONTINUE,
Node::Binop(_, l, r) => {
@ -617,14 +617,14 @@ pub(super) fn try_unify<'tcx>(
// We substitute generics repeatedly to allow AbstractConsts to unify where a
// ConstKind::Unevalated could be turned into an AbstractConst that would unify e.g.
// Param(N) should unify with Param(T), substs: [Unevaluated("T2", [Unevaluated("T3", [Param(N)])])]
while let Node::Leaf(a_ct) = a.root(tcx, a.substs) {
while let Node::Leaf(a_ct) = a.root(tcx) {
match AbstractConst::from_const(tcx, a_ct) {
Ok(Some(a_act)) => a = a_act,
Ok(None) => break,
Err(_) => return true,
}
}
while let Node::Leaf(b_ct) = b.root(tcx, b.substs) {
while let Node::Leaf(b_ct) = b.root(tcx) {
match AbstractConst::from_const(tcx, b_ct) {
Ok(Some(b_act)) => b = b_act,
Ok(None) => break,
@ -632,7 +632,7 @@ pub(super) fn try_unify<'tcx>(
}
}
match (a.root(tcx, a.substs), b.root(tcx, b.substs)) {
match (a.root(tcx), b.root(tcx)) {
(Node::Leaf(a_ct), Node::Leaf(b_ct)) => {
if a_ct.ty != b_ct.ty {
return false;

2
compiler/rustc_trait_selection/src/traits/object_safety.rs
View File

@ -839,7 +839,7 @@ fn contains_illegal_self_type_reference<'tcx, T: TypeFoldable<'tcx>>(
use rustc_middle::mir::abstract_const::Node;
if let Ok(Some(ct)) = AbstractConst::new(self.tcx, uv.shrink()) {
const_evaluatable::walk_abstract_const(self.tcx, ct, |node| {
match node.root(self.tcx, ct.substs) {
match node.root(self.tcx) {
Node::Leaf(leaf) => self.visit_const(leaf),
Node::Cast(_, _, ty) => self.visit_ty(ty),
Node::Binop(..) | Node::UnaryOp(..) | Node::FunctionCall(_, _) => {