bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Auto merge of #107206 - cjgillot:no-h2l-map, r=WaffleLapkin

Browse source 
Remove HirId -> LocalDefId map from HIR.

Having this map in HIR prevents the creating of new definitions after HIR has been built.
Thankfully, we do not need it.

Based on https://github.com/rust-lang/rust/pull/103902
This commit is contained in:
bors 2023-01-28 16:11:33 +00:00
commit d6f0642827
91 changed files with 557 additions and 592 deletions
Download patch file Download diff file Expand all files Collapse all files

47
compiler/rustc_lint/src/builtin.rs
View file

@ -56,9 +56,7 @@ use rustc_hir as hir;
use rustc_hir::def::{DefKind, Res};
use rustc_hir::def_id::{DefId, LocalDefId, LocalDefIdSet, CRATE_DEF_ID};
use rustc_hir::intravisit::FnKind as HirFnKind;
use rustc_hir::{
Body, FnDecl, ForeignItemKind, GenericParamKind, HirId, Node, PatKind, PredicateOrigin,
};
use rustc_hir::{Body, FnDecl, ForeignItemKind, GenericParamKind, Node, PatKind, PredicateOrigin};
use rustc_index::vec::Idx;
use rustc_middle::lint::in_external_macro;
use rustc_middle::ty::layout::{LayoutError, LayoutOf};
@ -583,12 +581,13 @@ impl<'tcx> LateLintPass<'tcx> for MissingDoc {
fn check_impl_item(&mut self, cx: &LateContext<'_>, impl_item: &hir::ImplItem<'_>) {
// If the method is an impl for a trait, don't doc.
if method_context(cx, impl_item.hir_id()) == MethodLateContext::TraitImpl {
let context = method_context(cx, impl_item.owner_id.def_id);
if context == MethodLateContext::TraitImpl {
return;
}
// If the method is an impl for an item with docs_hidden, don't doc.
if method_context(cx, impl_item.hir_id()) == MethodLateContext::PlainImpl {
if context == MethodLateContext::PlainImpl {
let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id());
let impl_ty = cx.tcx.type_of(parent);
let outerdef = match impl_ty.kind() {
@ -1296,19 +1295,18 @@ impl<'tcx> LateLintPass<'tcx> for UngatedAsyncFnTrackCaller {
_: &'tcx FnDecl<'_>,
_: &'tcx Body<'_>,
span: Span,
hir_id: HirId,
def_id: LocalDefId,
) {
if fn_kind.asyncness() == IsAsync::Async
&& !cx.tcx.features().closure_track_caller
&& let attrs = cx.tcx.hir().attrs(hir_id)
// Now, check if the function has the `#[track_caller]` attribute
&& let Some(attr) = attrs.iter().find(|attr| attr.has_name(sym::track_caller))
{
cx.emit_spanned_lint(UNGATED_ASYNC_FN_TRACK_CALLER, attr.span, BuiltinUngatedAsyncFnTrackCaller {
label: span,
parse_sess: &cx.tcx.sess.parse_sess,
});
}
&& let Some(attr) = cx.tcx.get_attr(def_id.to_def_id(), sym::track_caller)
{
cx.emit_spanned_lint(UNGATED_ASYNC_FN_TRACK_CALLER, attr.span, BuiltinUngatedAsyncFnTrackCaller {
label: span,
parse_sess: &cx.tcx.sess.parse_sess,
});
}
}
}
@ -2684,7 +2682,7 @@ pub struct ClashingExternDeclarations {
/// the symbol should be reported as a clashing declaration.
// FIXME: Technically, we could just store a &'tcx str here without issue; however, the
// `impl_lint_pass` macro doesn't currently support lints parametric over a lifetime.
seen_decls: FxHashMap<Symbol, HirId>,
seen_decls: FxHashMap<Symbol, hir::OwnerId>,
}
/// Differentiate between whether the name for an extern decl came from the link_name attribute or
@ -2710,19 +2708,20 @@ impl ClashingExternDeclarations {
pub(crate) fn new() -> Self {
ClashingExternDeclarations { seen_decls: FxHashMap::default() }
}
/// Insert a new foreign item into the seen set. If a symbol with the same name already exists
/// for the item, return its HirId without updating the set.
fn insert(&mut self, tcx: TyCtxt<'_>, fi: &hir::ForeignItem<'_>) -> Option<HirId> {
fn insert(&mut self, tcx: TyCtxt<'_>, fi: &hir::ForeignItem<'_>) -> Option<hir::OwnerId> {
let did = fi.owner_id.to_def_id();
let instance = Instance::new(did, ty::List::identity_for_item(tcx, did));
let name = Symbol::intern(tcx.symbol_name(instance).name);
if let Some(&hir_id) = self.seen_decls.get(&name) {
if let Some(&existing_id) = self.seen_decls.get(&name) {
// Avoid updating the map with the new entry when we do find a collision. We want to
// make sure we're always pointing to the first definition as the previous declaration.
// This lets us avoid emitting "knock-on" diagnostics.
Some(hir_id)
Some(existing_id)
} else {
self.seen_decls.insert(name, fi.hir_id())
self.seen_decls.insert(name, fi.owner_id)
}
}
@ -2949,16 +2948,16 @@ impl ClashingExternDeclarations {
impl_lint_pass!(ClashingExternDeclarations => [CLASHING_EXTERN_DECLARATIONS]);
impl<'tcx> LateLintPass<'tcx> for ClashingExternDeclarations {
#[instrument(level = "trace", skip(self, cx))]
fn check_foreign_item(&mut self, cx: &LateContext<'tcx>, this_fi: &hir::ForeignItem<'_>) {
trace!("ClashingExternDeclarations: check_foreign_item: {:?}", this_fi);
if let ForeignItemKind::Fn(..) = this_fi.kind {
let tcx = cx.tcx;
if let Some(existing_hid) = self.insert(tcx, this_fi) {
let existing_decl_ty = tcx.type_of(tcx.hir().local_def_id(existing_hid));
if let Some(existing_did) = self.insert(tcx, this_fi) {
let existing_decl_ty = tcx.type_of(existing_did);
let this_decl_ty = tcx.type_of(this_fi.owner_id);
debug!(
"ClashingExternDeclarations: Comparing existing {:?}: {:?} to this {:?}: {:?}",
existing_hid, existing_decl_ty, this_fi.owner_id, this_decl_ty
existing_did, existing_decl_ty, this_fi.owner_id, this_decl_ty
);
// Check that the declarations match.
if !Self::structurally_same_type(
@ -2967,7 +2966,7 @@ impl<'tcx> LateLintPass<'tcx> for ClashingExternDeclarations {
this_decl_ty,
CItemKind::Declaration,
) {
let orig_fi = tcx.hir().expect_foreign_item(existing_hid.expect_owner());
let orig_fi = tcx.hir().expect_foreign_item(existing_did);
let orig = Self::name_of_extern_decl(tcx, orig_fi);
// We want to ensure that we use spans for both decls that include where the

15
compiler/rustc_lint/src/late.rs
View file

@ -66,13 +66,12 @@ impl<'tcx, T: LateLintPass<'tcx>> LateContextAndPass<'tcx, T> {
self.context.last_node_with_lint_attrs = prev;
}
fn with_param_env<F>(&mut self, id: hir::HirId, f: F)
fn with_param_env<F>(&mut self, id: hir::OwnerId, f: F)
where
F: FnOnce(&mut Self),
{
let old_param_env = self.context.param_env;
self.context.param_env =
self.context.tcx.param_env(self.context.tcx.hir().local_def_id(id));
self.context.param_env = self.context.tcx.param_env(id);
f(self);
self.context.param_env = old_param_env;
}
@ -132,7 +131,7 @@ impl<'tcx, T: LateLintPass<'tcx>> hir_visit::Visitor<'tcx> for LateContextAndPas
let old_cached_typeck_results = self.context.cached_typeck_results.take();
let old_enclosing_body = self.context.enclosing_body.take();
self.with_lint_attrs(it.hir_id(), |cx| {
cx.with_param_env(it.hir_id(), |cx| {
cx.with_param_env(it.owner_id, |cx| {
lint_callback!(cx, check_item, it);
hir_visit::walk_item(cx, it);
lint_callback!(cx, check_item_post, it);
@ -145,7 +144,7 @@ impl<'tcx, T: LateLintPass<'tcx>> hir_visit::Visitor<'tcx> for LateContextAndPas
fn visit_foreign_item(&mut self, it: &'tcx hir::ForeignItem<'tcx>) {
self.with_lint_attrs(it.hir_id(), |cx| {
cx.with_param_env(it.hir_id(), |cx| {
cx.with_param_env(it.owner_id, |cx| {
lint_callback!(cx, check_foreign_item, it);
hir_visit::walk_foreign_item(cx, it);
});
@ -180,7 +179,7 @@ impl<'tcx, T: LateLintPass<'tcx>> hir_visit::Visitor<'tcx> for LateContextAndPas
decl: &'tcx hir::FnDecl<'tcx>,
body_id: hir::BodyId,
span: Span,
id: hir::HirId,
id: LocalDefId,
) {
// Wrap in typeck results here, not just in visit_nested_body,
// in order for `check_fn` to be able to use them.
@ -268,7 +267,7 @@ impl<'tcx, T: LateLintPass<'tcx>> hir_visit::Visitor<'tcx> for LateContextAndPas
let generics = self.context.generics.take();
self.context.generics = Some(&trait_item.generics);
self.with_lint_attrs(trait_item.hir_id(), |cx| {
cx.with_param_env(trait_item.hir_id(), |cx| {
cx.with_param_env(trait_item.owner_id, |cx| {
lint_callback!(cx, check_trait_item, trait_item);
hir_visit::walk_trait_item(cx, trait_item);
});
@ -280,7 +279,7 @@ impl<'tcx, T: LateLintPass<'tcx>> hir_visit::Visitor<'tcx> for LateContextAndPas
let generics = self.context.generics.take();
self.context.generics = Some(&impl_item.generics);
self.with_lint_attrs(impl_item.hir_id(), |cx| {
cx.with_param_env(impl_item.hir_id(), |cx| {
cx.with_param_env(impl_item.owner_id, |cx| {
lint_callback!(cx, check_impl_item, impl_item);
hir_visit::walk_impl_item(cx, impl_item);
lint_callback!(cx, check_impl_item_post, impl_item);

18
compiler/rustc_lint/src/nonstandard_style.rs
View file

@ -10,8 +10,9 @@ use rustc_hir::def::{DefKind, Res};
use rustc_hir::intravisit::FnKind;
use rustc_hir::{GenericParamKind, PatKind};
use rustc_middle::ty;
use rustc_span::symbol::sym;
use rustc_span::{symbol::Ident, BytePos, Span};
use rustc_span::def_id::LocalDefId;
use rustc_span::symbol::{sym, Ident};
use rustc_span::{BytePos, Span};
use rustc_target::spec::abi::Abi;
#[derive(PartialEq)]
@ -21,9 +22,8 @@ pub enum MethodLateContext {
PlainImpl,
}
pub fn method_context(cx: &LateContext<'_>, id: hir::HirId) -> MethodLateContext {
let def_id = cx.tcx.hir().local_def_id(id);
let item = cx.tcx.associated_item(def_id);
pub fn method_context(cx: &LateContext<'_>, id: LocalDefId) -> MethodLateContext {
let item = cx.tcx.associated_item(id);
match item.container {
ty::TraitContainer => MethodLateContext::TraitAutoImpl,
ty::ImplContainer => match cx.tcx.impl_trait_ref(item.container_id(cx.tcx)) {
@ -379,13 +379,13 @@ impl<'tcx> LateLintPass<'tcx> for NonSnakeCase {
_: &hir::FnDecl<'_>,
_: &hir::Body<'_>,
_: Span,
id: hir::HirId,
id: LocalDefId,
) {
let attrs = cx.tcx.hir().attrs(id);
match &fk {
FnKind::Method(ident, sig, ..) => match method_context(cx, id) {
MethodLateContext::PlainImpl => {
if sig.header.abi != Abi::Rust && cx.sess().contains_name(attrs, sym::no_mangle)
if sig.header.abi != Abi::Rust
&& cx.tcx.has_attr(id.to_def_id(), sym::no_mangle)
{
return;
}
@ -398,7 +398,7 @@ impl<'tcx> LateLintPass<'tcx> for NonSnakeCase {
},
FnKind::ItemFn(ident, _, header) => {
// Skip foreign-ABI #[no_mangle] functions (Issue #31924)
if header.abi != Abi::Rust && cx.sess().contains_name(attrs, sym::no_mangle) {
if header.abi != Abi::Rust && cx.tcx.has_attr(id.to_def_id(), sym::no_mangle) {
return;
}
self.check_snake_case(cx, "function", ident);

3
compiler/rustc_lint/src/passes.rs
View file

@ -4,6 +4,7 @@ use rustc_ast as ast;
use rustc_hir as hir;
use rustc_session::lint::builtin::HardwiredLints;
use rustc_session::lint::LintPass;
use rustc_span::def_id::LocalDefId;
use rustc_span::symbol::Ident;
use rustc_span::Span;
@ -36,7 +37,7 @@ macro_rules! late_lint_methods {
b: &'tcx hir::FnDecl<'tcx>,
c: &'tcx hir::Body<'tcx>,
d: Span,
e: hir::HirId);
e: LocalDefId);
fn check_trait_item(a: &'tcx hir::TraitItem<'tcx>);
fn check_impl_item(a: &'tcx hir::ImplItem<'tcx>);
fn check_impl_item_post(a: &'tcx hir::ImplItem<'tcx>);

17
compiler/rustc_lint/src/types.rs
View file

@ -14,6 +14,7 @@ use rustc_hir::{is_range_literal, Expr, ExprKind, Node};
use rustc_middle::ty::layout::{IntegerExt, LayoutOf, SizeSkeleton};
use rustc_middle::ty::subst::SubstsRef;
use rustc_middle::ty::{self, AdtKind, DefIdTree, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable};
use rustc_span::def_id::LocalDefId;
use rustc_span::source_map;
use rustc_span::symbol::sym;
use rustc_span::{Span, Symbol};
@ -1224,8 +1225,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
}
}
fn check_foreign_fn(&mut self, id: hir::HirId, decl: &hir::FnDecl<'_>) {
let def_id = self.cx.tcx.hir().local_def_id(id);
fn check_foreign_fn(&mut self, def_id: LocalDefId, decl: &hir::FnDecl<'_>) {
let sig = self.cx.tcx.fn_sig(def_id).subst_identity();
let sig = self.cx.tcx.erase_late_bound_regions(sig);
@ -1239,9 +1239,8 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
}
}
fn check_foreign_static(&mut self, id: hir::HirId, span: Span) {
let def_id = self.cx.tcx.hir().local_def_id(id);
let ty = self.cx.tcx.type_of(def_id);
fn check_foreign_static(&mut self, id: hir::OwnerId, span: Span) {
let ty = self.cx.tcx.type_of(id);
self.check_type_for_ffi_and_report_errors(span, ty, true, false);
}
@ -1261,10 +1260,10 @@ impl<'tcx> LateLintPass<'tcx> for ImproperCTypesDeclarations {
if !vis.is_internal_abi(abi) {
match it.kind {
hir::ForeignItemKind::Fn(ref decl, _, _) => {
vis.check_foreign_fn(it.hir_id(), decl);
vis.check_foreign_fn(it.owner_id.def_id, decl);
}
hir::ForeignItemKind::Static(ref ty, _) => {
vis.check_foreign_static(it.hir_id(), ty.span);
vis.check_foreign_static(it.owner_id, ty.span);
}
hir::ForeignItemKind::Type => (),
}
@ -1280,7 +1279,7 @@ impl<'tcx> LateLintPass<'tcx> for ImproperCTypesDefinitions {
decl: &'tcx hir::FnDecl<'_>,
_: &'tcx hir::Body<'_>,
_: Span,
hir_id: hir::HirId,
id: LocalDefId,
) {
use hir::intravisit::FnKind;
@ -1292,7 +1291,7 @@ impl<'tcx> LateLintPass<'tcx> for ImproperCTypesDefinitions {
let mut vis = ImproperCTypesVisitor { cx, mode: CItemKind::Definition };
if !vis.is_internal_abi(abi) {
vis.check_foreign_fn(hir_id, decl);
vis.check_foreign_fn(id, decl);
}
}
}