#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
#![feature(associated_type_defaults)]
#![feature(control_flow_enum)]
+#![cfg_attr(bootstrap, feature(let_else))]
#![feature(rustc_private)]
#![feature(try_blocks)]
#![recursion_limit = "256"]
-#![allow(rustc::potential_query_instability)]
-#![cfg_attr(not(bootstrap), deny(rustc::untranslatable_diagnostic))]
-#![cfg_attr(not(bootstrap), deny(rustc::diagnostic_outside_of_impl))]
+#![deny(rustc::untranslatable_diagnostic)]
+#![deny(rustc::diagnostic_outside_of_impl)]
+
+#[macro_use]
+extern crate tracing;
mod errors;
use rustc_middle::ty::{TraitRef, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor};
use rustc_session::lint;
use rustc_span::hygiene::Transparency;
-use rustc_span::symbol::{kw, Ident};
+use rustc_span::symbol::{kw, sym, Ident};
use rustc_span::Span;
use std::marker::PhantomData;
use errors::{
FieldIsPrivate, FieldIsPrivateLabel, FromPrivateDependencyInPublicInterface, InPublicInterface,
- InPublicInterfaceTraits, ItemIsPrivate, PrivateInPublicLint, UnnamedItemIsPrivate,
+ InPublicInterfaceTraits, ItemIsPrivate, PrivateInPublicLint, ReportAccessLevel,
+ UnnamedItemIsPrivate,
};
////////////////////////////////////////////////////////////////////////////////
_kind: &str,
_descr: &dyn fmt::Display,
) -> ControlFlow<Self::BreakTy> {
- self.min = VL::new_min(self, def_id);
+ if let Some(def_id) = def_id.as_local() {
+ self.min = VL::new_min(self, def_id);
+ }
ControlFlow::CONTINUE
}
}
trait VisibilityLike: Sized {
const MAX: Self;
const SHALLOW: bool = false;
- fn new_min(find: &FindMin<'_, '_, Self>, def_id: DefId) -> Self;
+ fn new_min(find: &FindMin<'_, '_, Self>, def_id: LocalDefId) -> Self;
// Returns an over-approximation (`skip_assoc_tys` = true) of visibility due to
// associated types for which we can't determine visibility precisely.
}
impl VisibilityLike for ty::Visibility {
const MAX: Self = ty::Visibility::Public;
- fn new_min(find: &FindMin<'_, '_, Self>, def_id: DefId) -> Self {
- min(find.tcx.visibility(def_id), find.min, find.tcx)
+ fn new_min(find: &FindMin<'_, '_, Self>, def_id: LocalDefId) -> Self {
+ min(find.tcx.local_visibility(def_id), find.min, find.tcx)
}
}
impl VisibilityLike for Option<AccessLevel> {
// both "shallow" version of its self type and "shallow" version of its trait if it exists
// (which require reaching the `DefId`s in them).
const SHALLOW: bool = true;
- fn new_min(find: &FindMin<'_, '_, Self>, def_id: DefId) -> Self {
- cmp::min(
- if let Some(def_id) = def_id.as_local() {
- find.access_levels.map.get(&def_id).copied()
- } else {
- Self::MAX
- },
- find.min,
- )
+ fn new_min(find: &FindMin<'_, '_, Self>, def_id: LocalDefId) -> Self {
+ cmp::min(find.access_levels.map.get(&def_id).copied(), find.min)
}
}
let module = self.tcx.hir().get_module(module_def_id).0;
for item_id in module.item_ids {
let def_kind = self.tcx.def_kind(item_id.def_id);
- let vis = self.tcx.visibility(item_id.def_id);
+ let vis = self.tcx.local_visibility(item_id.def_id);
self.update_macro_reachable_def(item_id.def_id, def_kind, vis, defining_mod);
}
if let Some(exports) = self.tcx.module_reexports(module_def_id) {
for export in exports {
- if export.vis.is_accessible_from(defining_mod.to_def_id(), self.tcx) {
+ if export.vis.is_accessible_from(defining_mod, self.tcx) {
if let Res::Def(def_kind, def_id) = export.res {
if let Some(def_id) = def_id.as_local() {
- let vis = self.tcx.visibility(def_id.to_def_id());
+ let vis = self.tcx.local_visibility(def_id);
self.update_macro_reachable_def(def_id, def_kind, vis, defining_mod);
}
}
match def_kind {
// No type privacy, so can be directly marked as reachable.
DefKind::Const | DefKind::Static(_) | DefKind::TraitAlias | DefKind::TyAlias => {
- if vis.is_accessible_from(module.to_def_id(), self.tcx) {
+ if vis.is_accessible_from(module, self.tcx) {
self.update(def_id, level);
}
}
DefKind::Macro(_) => {
let item = self.tcx.hir().expect_item(def_id);
if let hir::ItemKind::Macro(MacroDef { macro_rules: false, .. }, _) = item.kind {
- if vis.is_accessible_from(module.to_def_id(), self.tcx) {
+ if vis.is_accessible_from(module, self.tcx) {
self.update(def_id, level);
}
}
// hygiene these don't need to be marked reachable. The contents of
// the module, however may be reachable.
DefKind::Mod => {
- if vis.is_accessible_from(module.to_def_id(), self.tcx) {
+ if vis.is_accessible_from(module, self.tcx) {
self.update_macro_reachable(def_id, module);
}
}
{
for field in struct_def.fields() {
let def_id = self.tcx.hir().local_def_id(field.hir_id);
- let field_vis = self.tcx.visibility(def_id);
- if field_vis.is_accessible_from(module.to_def_id(), self.tcx) {
+ let field_vis = self.tcx.local_visibility(def_id);
+ if field_vis.is_accessible_from(module, self.tcx) {
self.reach(def_id, level).ty();
}
}
| DefKind::ForeignTy
| DefKind::Fn
| DefKind::OpaqueTy
+ | DefKind::ImplTraitPlaceholder
| DefKind::AssocFn
| DefKind::Trait
| DefKind::TyParam
hir::ItemKind::Impl(ref impl_) => {
for impl_item_ref in impl_.items {
if impl_.of_trait.is_some()
- || self.tcx.visibility(impl_item_ref.id.def_id) == ty::Visibility::Public
+ || self.tcx.visibility(impl_item_ref.id.def_id).is_public()
{
self.update(impl_item_ref.id.def_id, item_level);
}
}
hir::ItemKind::ForeignMod { items, .. } => {
for foreign_item in items {
- if self.tcx.visibility(foreign_item.id.def_id) == ty::Visibility::Public {
+ if self.tcx.visibility(foreign_item.id.def_id).is_public() {
self.update(foreign_item.id.def_id, item_level);
}
}
hir::ItemKind::Use(..) => {}
// The interface is empty.
hir::ItemKind::GlobalAsm(..) => {}
- hir::ItemKind::OpaqueTy(..) => {
+ hir::ItemKind::OpaqueTy(ref opaque) => {
// HACK(jynelson): trying to infer the type of `impl trait` breaks `async-std` (and `pub async fn` in general)
// Since rustdoc never needs to do codegen and doesn't care about link-time reachability,
// mark this as unreachable.
// See https://github.com/rust-lang/rust/issues/75100
- if !self.tcx.sess.opts.actually_rustdoc {
+ if !opaque.in_trait && !self.tcx.sess.opts.actually_rustdoc {
// FIXME: This is some serious pessimization intended to workaround deficiencies
// in the reachability pass (`middle/reachable.rs`). Types are marked as link-time
// reachable if they are returned via `impl Trait`, even from private functions.
}
}
+////////////////////////////////////////////////////////////////////////////////
+/// Visitor, used for AccessLevels table checking
+////////////////////////////////////////////////////////////////////////////////
+pub struct TestReachabilityVisitor<'tcx, 'a> {
+ tcx: TyCtxt<'tcx>,
+ access_levels: &'a AccessLevels,
+}
+
+impl<'tcx, 'a> TestReachabilityVisitor<'tcx, 'a> {
+ fn access_level_diagnostic(&mut self, def_id: LocalDefId) {
+ if self.tcx.has_attr(def_id.to_def_id(), sym::rustc_access_level) {
+ let access_level = format!("{:?}", self.access_levels.map.get(&def_id));
+ let span = self.tcx.def_span(def_id.to_def_id());
+ self.tcx.sess.emit_err(ReportAccessLevel { span, descr: access_level });
+ }
+ }
+}
+
+impl<'tcx, 'a> Visitor<'tcx> for TestReachabilityVisitor<'tcx, 'a> {
+ fn visit_item(&mut self, item: &'tcx hir::Item<'tcx>) {
+ self.access_level_diagnostic(item.def_id);
+
+ match item.kind {
+ hir::ItemKind::Enum(ref def, _) => {
+ for variant in def.variants.iter() {
+ let variant_id = self.tcx.hir().local_def_id(variant.id);
+ self.access_level_diagnostic(variant_id);
+ for field in variant.data.fields() {
+ let def_id = self.tcx.hir().local_def_id(field.hir_id);
+ self.access_level_diagnostic(def_id);
+ }
+ }
+ }
+ hir::ItemKind::Struct(ref def, _) | hir::ItemKind::Union(ref def, _) => {
+ for field in def.fields() {
+ let def_id = self.tcx.hir().local_def_id(field.hir_id);
+ self.access_level_diagnostic(def_id);
+ }
+ }
+ _ => {}
+ }
+ }
+
+ fn visit_trait_item(&mut self, item: &'tcx hir::TraitItem<'tcx>) {
+ self.access_level_diagnostic(item.def_id);
+ }
+ fn visit_impl_item(&mut self, item: &'tcx hir::ImplItem<'tcx>) {
+ self.access_level_diagnostic(item.def_id);
+ }
+ fn visit_foreign_item(&mut self, item: &'tcx hir::ForeignItem<'tcx>) {
+ self.access_level_diagnostic(item.def_id);
+ }
+}
+
//////////////////////////////////////////////////////////////////////////////////////
/// Name privacy visitor, checks privacy and reports violations.
/// Most of name privacy checks are performed during the main resolution phase,
}
fn item_is_accessible(&self, did: DefId) -> bool {
- self.tcx.visibility(did).is_accessible_from(self.current_item.to_def_id(), self.tcx)
+ self.tcx.visibility(did).is_accessible_from(self.current_item, self.tcx)
}
// Take node-id of an expression or pattern and check its type for privacy.
}
}
- intravisit::walk_qpath(self, qpath, id, span);
+ intravisit::walk_qpath(self, qpath, id);
}
// Check types of patterns.
let mut found_pub_static = false;
for impl_item_ref in impl_.items {
if self.access_levels.is_reachable(impl_item_ref.id.def_id)
- || self.tcx.visibility(impl_item_ref.id.def_id)
- == ty::Visibility::Public
+ || self.tcx.visibility(impl_item_ref.id.def_id).is_public()
{
let impl_item = self.tcx.hir().impl_item(impl_item_ref.id);
match impl_item_ref.kind {
intravisit::walk_ty(self, t)
}
- fn visit_variant(
- &mut self,
- v: &'tcx hir::Variant<'tcx>,
- g: &'tcx hir::Generics<'tcx>,
- item_id: hir::HirId,
- ) {
+ fn visit_variant(&mut self, v: &'tcx hir::Variant<'tcx>) {
if self.access_levels.is_reachable(self.tcx.hir().local_def_id(v.id)) {
self.in_variant = true;
- intravisit::walk_variant(self, v, g, item_id);
+ intravisit::walk_variant(self, v);
self.in_variant = false;
}
}
);
}
- let hir_id = match def_id.as_local() {
- Some(def_id) => self.tcx.hir().local_def_id_to_hir_id(def_id),
- None => return false,
+ let Some(local_def_id) = def_id.as_local() else {
+ return false;
};
- let vis = self.tcx.visibility(def_id);
+ let vis = self.tcx.local_visibility(local_def_id);
if !vis.is_at_least(self.required_visibility, self.tcx) {
+ let hir_id = self.tcx.hir().local_def_id_to_hir_id(local_def_id);
let vis_descr = match vis {
ty::Visibility::Public => "public",
- ty::Visibility::Invisible => "private",
ty::Visibility::Restricted(vis_def_id) => {
- if vis_def_id == self.tcx.parent_module(hir_id).to_def_id() {
+ if vis_def_id == self.tcx.parent_module(hir_id) {
"private"
} else if vis_def_id.is_top_level_module() {
"crate-private"
fn leaks_private_dep(&self, item_id: DefId) -> bool {
let ret = self.required_visibility.is_public() && self.tcx.is_private_dep(item_id.krate);
- tracing::debug!("leaks_private_dep(item_id={:?})={}", item_id, ret);
+ debug!("leaks_private_dep(item_id={:?})={}", item_id, ret);
ret
}
}
pub fn check_item(&mut self, id: ItemId) {
let tcx = self.tcx;
- let item_visibility = tcx.visibility(id.def_id);
+ let item_visibility = tcx.local_visibility(id.def_id);
let def_kind = tcx.def_kind(id.def_id);
match def_kind {
let item = tcx.hir().item(id);
if let hir::ItemKind::ForeignMod { items, .. } = item.kind {
for foreign_item in items {
- let vis = tcx.visibility(foreign_item.id.def_id);
+ let vis = tcx.local_visibility(foreign_item.id.def_id);
self.check(foreign_item.id.def_id, vis).generics().predicates().ty();
}
}
for field in struct_def.fields() {
let def_id = tcx.hir().local_def_id(field.hir_id);
- let field_visibility = tcx.visibility(def_id);
+ let field_visibility = tcx.local_visibility(def_id);
self.check(def_id, min(item_visibility, field_visibility, tcx)).ty();
}
}
}
for impl_item_ref in impl_.items {
let impl_item_vis = if impl_.of_trait.is_none() {
- min(tcx.visibility(impl_item_ref.id.def_id), impl_vis, tcx)
+ min(tcx.local_visibility(impl_item_ref.id.def_id), impl_vis, tcx)
} else {
impl_vis
};
};
}
-fn visibility(tcx: TyCtxt<'_>, def_id: DefId) -> ty::Visibility {
- let def_id = def_id.expect_local();
+fn visibility(tcx: TyCtxt<'_>, def_id: DefId) -> ty::Visibility<DefId> {
+ local_visibility(tcx, def_id.expect_local()).to_def_id()
+}
+
+fn local_visibility(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Visibility {
match tcx.resolutions(()).visibilities.get(&def_id) {
Some(vis) => *vis,
None => {
// Visibility on them should have no effect, but to avoid the visibility
// query failing on some items, we provide it for opaque types as well.
| Node::Item(hir::Item {
- kind: hir::ItemKind::Use(_, hir::UseKind::ListStem) | hir::ItemKind::OpaqueTy(..),
+ kind: hir::ItemKind::Use(_, hir::UseKind::ListStem)
+ | hir::ItemKind::OpaqueTy(..),
..
- }) => ty::Visibility::Restricted(tcx.parent_module(hir_id).to_def_id()),
+ }) => ty::Visibility::Restricted(tcx.parent_module(hir_id)),
// Visibilities of trait impl items are inherited from their traits
// and are not filled in resolve.
Node::ImplItem(impl_item) => {
tcx.sess.delay_span_bug(tr.path.span, "trait without a def-id");
ty::Visibility::Public
},
- |def_id| tcx.visibility(def_id),
+ |def_id| tcx.visibility(def_id).expect_local(),
),
_ => span_bug!(impl_item.span, "the parent is not a trait impl"),
}
}
}
+ let mut check_visitor = TestReachabilityVisitor { tcx, access_levels: &visitor.access_levels };
+ tcx.hir().visit_all_item_likes_in_crate(&mut check_visitor);
+
tcx.arena.alloc(visitor.access_levels)
}
projects / rustc.git / blobdiff