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Auto merge of #120346 - petrochenkov:ownodes, r=oli-obk

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hir: Refactor getters for owner nodes
This commit is contained in:
bors 2024-01-31 05:37:49 +00:00
commit d53ddcd8bb
49 changed files with 918 additions and 925 deletions
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97
compiler/rustc_middle/src/hir/map/mod.rs
View file

@ -107,9 +107,8 @@ impl<'hir> Iterator for ParentOwnerIterator<'hir> {
fn next(&mut self) -> Option<Self::Item> {
if self.current_id.local_id.index() != 0 {
self.current_id.local_id = ItemLocalId::new(0);
if let Some(node) = self.map.tcx.hir_owner(self.current_id.owner) {
return Some((self.current_id.owner, node));
}
let node = self.map.tcx.hir_owner_node(self.current_id.owner);
return Some((self.current_id.owner, node));
}
if self.current_id == CRATE_HIR_ID {
return None;
@ -125,22 +124,42 @@ impl<'hir> Iterator for ParentOwnerIterator<'hir> {
self.current_id = HirId::make_owner(parent_id.def_id);
// If this `HirId` doesn't have an entry, skip it and look for its `parent_id`.
if let Some(node) = self.map.tcx.hir_owner(self.current_id.owner) {
return Some((self.current_id.owner, node));
}
let node = self.map.tcx.hir_owner_node(self.current_id.owner);
return Some((self.current_id.owner, node));
}
}
}
impl<'tcx> TyCtxt<'tcx> {
#[inline]
fn hir_owner(self, owner: OwnerId) -> Option<OwnerNode<'tcx>> {
Some(self.hir_owner_nodes(owner).as_owner()?.node())
fn expect_hir_owner_nodes(self, def_id: LocalDefId) -> &'tcx OwnerNodes<'tcx> {
self.opt_hir_owner_nodes(def_id)
.unwrap_or_else(|| span_bug!(self.def_span(def_id), "{def_id:?} is not an owner"))
}
#[inline]
pub fn hir_owner_nodes(self, owner_id: OwnerId) -> &'tcx OwnerNodes<'tcx> {
self.expect_hir_owner_nodes(owner_id.def_id)
}
#[inline]
fn opt_hir_owner_node(self, def_id: LocalDefId) -> Option<OwnerNode<'tcx>> {
self.opt_hir_owner_nodes(def_id).map(|nodes| nodes.node())
}
#[inline]
pub fn expect_hir_owner_node(self, def_id: LocalDefId) -> OwnerNode<'tcx> {
self.expect_hir_owner_nodes(def_id).node()
}
#[inline]
pub fn hir_owner_node(self, owner_id: OwnerId) -> OwnerNode<'tcx> {
self.hir_owner_nodes(owner_id).node()
}
/// Retrieves the `hir::Node` corresponding to `id`, returning `None` if cannot be found.
pub fn opt_hir_node(self, id: HirId) -> Option<Node<'tcx>> {
let owner = self.hir_owner_nodes(id.owner).as_owner()?;
let owner = self.hir_owner_nodes(id.owner);
let node = owner.nodes[id.local_id].as_ref()?;
Some(node.node)
}
@ -174,8 +193,8 @@ impl<'hir> Map<'hir> {
#[inline]
pub fn root_module(self) -> &'hir Mod<'hir> {
match self.tcx.hir_owner(CRATE_OWNER_ID) {
Some(OwnerNode::Crate(item)) => item,
match self.tcx.hir_owner_node(CRATE_OWNER_ID) {
OwnerNode::Crate(item) => item,
_ => bug!(),
}
}
@ -213,7 +232,7 @@ impl<'hir> Map<'hir> {
if id.local_id == ItemLocalId::from_u32(0) {
Some(self.tcx.hir_owner_parent(id.owner))
} else {
let owner = self.tcx.hir_owner_nodes(id.owner).as_owner()?;
let owner = self.tcx.hir_owner_nodes(id.owner);
let node = owner.nodes[id.local_id].as_ref()?;
let hir_id = HirId { owner: id.owner, local_id: node.parent };
// HIR indexing should have checked that.
@ -241,32 +260,27 @@ impl<'hir> Map<'hir> {
}
pub fn get_generics(self, id: LocalDefId) -> Option<&'hir Generics<'hir>> {
let node = self.tcx.hir_owner(OwnerId { def_id: id })?;
node.generics()
}
pub fn owner(self, id: OwnerId) -> OwnerNode<'hir> {
self.tcx.hir_owner(id).unwrap_or_else(|| bug!("expected owner for {:?}", id))
self.tcx.opt_hir_owner_node(id)?.generics()
}
pub fn item(self, id: ItemId) -> &'hir Item<'hir> {
self.tcx.hir_owner(id.owner_id).unwrap().expect_item()
self.tcx.hir_owner_node(id.owner_id).expect_item()
}
pub fn trait_item(self, id: TraitItemId) -> &'hir TraitItem<'hir> {
self.tcx.hir_owner(id.owner_id).unwrap().expect_trait_item()
self.tcx.hir_owner_node(id.owner_id).expect_trait_item()
}
pub fn impl_item(self, id: ImplItemId) -> &'hir ImplItem<'hir> {
self.tcx.hir_owner(id.owner_id).unwrap().expect_impl_item()
self.tcx.hir_owner_node(id.owner_id).expect_impl_item()
}
pub fn foreign_item(self, id: ForeignItemId) -> &'hir ForeignItem<'hir> {
self.tcx.hir_owner(id.owner_id).unwrap().expect_foreign_item()
self.tcx.hir_owner_node(id.owner_id).expect_foreign_item()
}
pub fn body(self, id: BodyId) -> &'hir Body<'hir> {
self.tcx.hir_owner_nodes(id.hir_id.owner).unwrap().bodies[&id.hir_id.local_id]
self.tcx.hir_owner_nodes(id.hir_id.owner).bodies[&id.hir_id.local_id]
}
#[track_caller]
@ -436,9 +450,9 @@ impl<'hir> Map<'hir> {
pub fn get_module(self, module: LocalModDefId) -> (&'hir Mod<'hir>, Span, HirId) {
let hir_id = HirId::make_owner(module.to_local_def_id());
match self.tcx.hir_owner(hir_id.owner) {
Some(OwnerNode::Item(&Item { span, kind: ItemKind::Mod(m), .. })) => (m, span, hir_id),
Some(OwnerNode::Crate(item)) => (item, item.spans.inner_span, hir_id),
match self.tcx.hir_owner_node(hir_id.owner) {
OwnerNode::Item(&Item { span, kind: ItemKind::Mod(m), .. }) => (m, span, hir_id),
OwnerNode::Crate(item) => (item, item.spans.inner_span, hir_id),
node => panic!("not a module: {node:?}"),
}
}
@ -726,8 +740,8 @@ impl<'hir> Map<'hir> {
pub fn get_foreign_abi(self, hir_id: HirId) -> Abi {
let parent = self.get_parent_item(hir_id);
if let Some(node) = self.tcx.hir_owner(parent)
&& let OwnerNode::Item(Item { kind: ItemKind::ForeignMod { abi, .. }, .. }) = node
if let OwnerNode::Item(Item { kind: ItemKind::ForeignMod { abi, .. }, .. }) =
self.tcx.hir_owner_node(parent)
{
return *abi;
}
@ -737,38 +751,29 @@ impl<'hir> Map<'hir> {
)
}
pub fn expect_owner(self, def_id: LocalDefId) -> OwnerNode<'hir> {
self.tcx
.hir_owner(OwnerId { def_id })
.unwrap_or_else(|| bug!("expected owner for {:?}", def_id))
}
pub fn expect_item(self, id: LocalDefId) -> &'hir Item<'hir> {
match self.tcx.hir_owner(OwnerId { def_id: id }) {
Some(OwnerNode::Item(item)) => item,
match self.tcx.expect_hir_owner_node(id) {
OwnerNode::Item(item) => item,
_ => bug!("expected item, found {}", self.node_to_string(HirId::make_owner(id))),
}
}
pub fn expect_impl_item(self, id: LocalDefId) -> &'hir ImplItem<'hir> {
match self.tcx.hir_owner(OwnerId { def_id: id }) {
Some(OwnerNode::ImplItem(item)) => item,
match self.tcx.expect_hir_owner_node(id) {
OwnerNode::ImplItem(item) => item,
_ => bug!("expected impl item, found {}", self.node_to_string(HirId::make_owner(id))),
}
}
pub fn expect_trait_item(self, id: LocalDefId) -> &'hir TraitItem<'hir> {
match self.tcx.hir_owner(OwnerId { def_id: id }) {
Some(OwnerNode::TraitItem(item)) => item,
match self.tcx.expect_hir_owner_node(id) {
OwnerNode::TraitItem(item) => item,
_ => bug!("expected trait item, found {}", self.node_to_string(HirId::make_owner(id))),
}
}
pub fn get_fn_output(self, def_id: LocalDefId) -> Option<&'hir FnRetTy<'hir>> {
match self.tcx.hir_owner(OwnerId { def_id }) {
Some(node) => node.fn_decl().map(|fn_decl| &fn_decl.output),
_ => None,
}
Some(&self.tcx.opt_hir_owner_node(def_id)?.fn_decl()?.output)
}
pub fn expect_variant(self, id: HirId) -> &'hir Variant<'hir> {
@ -779,8 +784,8 @@ impl<'hir> Map<'hir> {
}
pub fn expect_foreign_item(self, id: OwnerId) -> &'hir ForeignItem<'hir> {
match self.tcx.hir_owner(id) {
Some(OwnerNode::ForeignItem(item)) => item,
match self.tcx.hir_owner_node(id) {
OwnerNode::ForeignItem(item) => item,
_ => {
bug!(
"expected foreign item, found {}",

9
compiler/rustc_middle/src/hir/mod.rs
View file

@ -135,13 +135,8 @@ pub fn provide(providers: &mut Providers) {
MaybeOwner::NonOwner(hir_id) => hir_id,
})
};
providers.hir_owner_nodes = |tcx, id| {
if let Some(i) = tcx.hir_crate(()).owners.get(id.def_id) {
i.map(|i| &i.nodes)
} else {
MaybeOwner::Phantom
}
};
providers.opt_hir_owner_nodes =
|tcx, id| tcx.hir_crate(()).owners.get(id)?.as_owner().map(|i| &i.nodes);
providers.hir_owner_parent = |tcx, id| {
// Accessing the local_parent is ok since its value is hashed as part of `id`'s DefPathHash.
tcx.opt_local_parent(id.def_id).map_or(CRATE_HIR_ID, |parent| {

4
compiler/rustc_middle/src/query/mod.rs
View file

@ -190,11 +190,11 @@ rustc_queries! {
desc { |tcx| "getting HIR parent of `{}`", tcx.def_path_str(key) }
}
/// Gives access to the HIR nodes and bodies inside the HIR owner `key`.
/// Gives access to the HIR nodes and bodies inside `key` if it's a HIR owner.
///
/// This can be conveniently accessed by methods on `tcx.hir()`.
/// Avoid calling this query directly.
query hir_owner_nodes(key: hir::OwnerId) -> hir::MaybeOwner<&'tcx hir::OwnerNodes<'tcx>> {
query opt_hir_owner_nodes(key: LocalDefId) -> Option<&'tcx hir::OwnerNodes<'tcx>> {
desc { |tcx| "getting HIR owner items in `{}`", tcx.def_path_str(key) }
}