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Auto merge of #120951 - matthiaskrgr:rollup-0nnm7dv, r=matthiaskrgr

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Rollup of 8 pull requests

Successful merges:

 - #110483 (Create try_new function for ThinBox)
 - #120740 (Make cmath.rs a single file)
 - #120872 (hir: Refactor getters for HIR parents)
 - #120880 (add note on comparing vtables / function pointers)
 - #120885 (interpret/visitor: ensure we only see normalized types)
 - #120888 (assert_unsafe_precondition cleanup)
 - #120897 (Encode `coroutine_for_closure` for foreign crates)
 - #120937 ([docs] Update armv6k-nintendo-3ds platform docs for outdated info)

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2024-02-12 00:34:22 +00:00
commit 084ce5bdb5
98 changed files with 524 additions and 534 deletions
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76
compiler/rustc_middle/src/hir/map/mod.rs
View file

@ -82,7 +82,7 @@ impl<'hir> Iterator for ParentHirIterator<'hir> {
}
// There are nodes that do not have entries, so we need to skip them.
let parent_id = self.map.parent_id(self.current_id);
let parent_id = self.map.tcx.parent_hir_id(self.current_id);
if parent_id == self.current_id {
self.current_id = CRATE_HIR_ID;
@ -175,6 +175,28 @@ impl<'tcx> TyCtxt<'tcx> {
self.opt_hir_node_by_def_id(id)
.unwrap_or_else(|| bug!("couldn't find HIR node for def id {id:?}"))
}
/// Returns `HirId` of the parent HIR node of node with this `hir_id`.
/// Returns the same `hir_id` if and only if `hir_id == CRATE_HIR_ID`.
///
/// If calling repeatedly and iterating over parents, prefer [`Map::parent_iter`].
pub fn parent_hir_id(self, hir_id: HirId) -> HirId {
let HirId { owner, local_id } = hir_id;
if local_id == ItemLocalId::from_u32(0) {
self.hir_owner_parent(owner)
} else {
let parent_local_id = self.hir_owner_nodes(owner).nodes[local_id].parent;
// HIR indexing should have checked that.
debug_assert_ne!(parent_local_id, local_id);
HirId { owner, local_id: parent_local_id }
}
}
/// Returns parent HIR node of node with this `hir_id`.
/// Returns HIR node of the same `hir_id` if and only if `hir_id == CRATE_HIR_ID`.
pub fn parent_hir_node(self, hir_id: HirId) -> Node<'tcx> {
self.hir_node(self.parent_hir_id(hir_id))
}
}
impl<'hir> Map<'hir> {
@ -217,39 +239,6 @@ impl<'hir> Map<'hir> {
self.tcx.definitions_untracked().def_path_hash(def_id)
}
/// Finds the id of the parent node to this one.
///
/// If calling repeatedly and iterating over parents, prefer [`Map::parent_iter`].
pub fn opt_parent_id(self, id: HirId) -> Option<HirId> {
if id.local_id == ItemLocalId::from_u32(0) {
// FIXME: This function never returns `None` right now, and the parent chain end is
// determined by checking for `parent(id) == id`. This function should return `None`
// for the crate root instead.
Some(self.tcx.hir_owner_parent(id.owner))
} else {
let owner = self.tcx.hir_owner_nodes(id.owner);
let node = &owner.nodes[id.local_id];
let hir_id = HirId { owner: id.owner, local_id: node.parent };
// HIR indexing should have checked that.
debug_assert_ne!(id.local_id, node.parent);
Some(hir_id)
}
}
#[track_caller]
pub fn parent_id(self, hir_id: HirId) -> HirId {
self.opt_parent_id(hir_id)
.unwrap_or_else(|| bug!("No parent for node {}", self.node_to_string(hir_id)))
}
pub fn get_parent(self, hir_id: HirId) -> Node<'hir> {
self.tcx.hir_node(self.parent_id(hir_id))
}
pub fn find_parent(self, hir_id: HirId) -> Option<Node<'hir>> {
Some(self.tcx.hir_node(self.opt_parent_id(hir_id)?))
}
pub fn get_if_local(self, id: DefId) -> Option<Node<'hir>> {
id.as_local()
.and_then(|id| Some(self.tcx.hir_node(self.tcx.opt_local_def_id_to_hir_id(id)?)))
@ -304,14 +293,13 @@ impl<'hir> Map<'hir> {
/// which this is the body of, i.e., a `fn`, `const` or `static`
/// item (possibly associated), a closure, or a `hir::AnonConst`.
pub fn body_owner(self, BodyId { hir_id }: BodyId) -> HirId {
let parent = self.parent_id(hir_id);
let parent = self.tcx.parent_hir_id(hir_id);
assert!(is_body_owner(self.tcx.hir_node(parent), hir_id), "{hir_id:?}");
parent
}
pub fn body_owner_def_id(self, BodyId { hir_id }: BodyId) -> LocalDefId {
let parent = self.parent_id(hir_id);
associated_body(self.tcx.hir_node(parent)).unwrap().0
associated_body(self.tcx.parent_hir_node(hir_id)).unwrap().0
}
/// Given a `LocalDefId`, returns the `BodyId` associated with it,
@ -569,8 +557,8 @@ impl<'hir> Map<'hir> {
/// Checks if the node is left-hand side of an assignment.
pub fn is_lhs(self, id: HirId) -> bool {
match self.find_parent(id) {
Some(Node::Expr(expr)) => match expr.kind {
match self.tcx.parent_hir_node(id) {
Node::Expr(expr) => match expr.kind {
ExprKind::Assign(lhs, _rhs, _span) => lhs.hir_id == id,
_ => false,
},
@ -793,7 +781,7 @@ impl<'hir> Map<'hir> {
Node::Pat(&Pat { kind: PatKind::Binding(_, _, ident, _), .. }) => Some(ident),
// A `Ctor` doesn't have an identifier itself, but its parent
// struct/variant does. Compare with `hir::Map::span`.
Node::Ctor(..) => match self.find_parent(id)? {
Node::Ctor(..) => match self.tcx.parent_hir_node(id) {
Node::Item(item) => Some(item.ident),
Node::Variant(variant) => Some(variant.ident),
_ => unreachable!(),
@ -925,7 +913,7 @@ impl<'hir> Map<'hir> {
ForeignItemKind::Fn(decl, _, _) => until_within(item.span, decl.output.span()),
_ => named_span(item.span, item.ident, None),
},
Node::Ctor(_) => return self.span(self.parent_id(hir_id)),
Node::Ctor(_) => return self.span(self.tcx.parent_hir_id(hir_id)),
Node::Expr(Expr {
kind: ExprKind::Closure(Closure { fn_decl_span, .. }),
span,
@ -968,7 +956,7 @@ impl<'hir> Map<'hir> {
Node::PatField(field) => field.span,
Node::Arm(arm) => arm.span,
Node::Block(block) => block.span,
Node::Ctor(..) => self.span_with_body(self.parent_id(hir_id)),
Node::Ctor(..) => self.span_with_body(self.tcx.parent_hir_id(hir_id)),
Node::Lifetime(lifetime) => lifetime.ident.span,
Node::GenericParam(param) => param.span,
Node::Infer(i) => i.span,
@ -1001,7 +989,7 @@ impl<'hir> Map<'hir> {
/// Returns the HirId of `N` in `struct Foo<const N: usize = { ... }>` when
/// called with the HirId for the `{ ... }` anon const
pub fn opt_const_param_default_param_def_id(self, anon_const: HirId) -> Option<LocalDefId> {
match self.get_parent(anon_const) {
match self.tcx.parent_hir_node(anon_const) {
Node::GenericParam(GenericParam {
def_id: param_id,
kind: GenericParamKind::Const { .. },
@ -1026,7 +1014,7 @@ impl<'hir> Map<'hir> {
_ => None,
}?;
match self.find_parent(expr.hir_id)? {
match self.tcx.parent_hir_node(expr.hir_id) {
Node::ExprField(field) => {
if field.ident.name == local.name && field.is_shorthand {
return Some(local.name);

15
compiler/rustc_middle/src/hir/mod.rs
View file

@ -136,13 +136,14 @@ pub fn provide(providers: &mut Providers) {
};
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| {
let mut parent_hir_id = tcx.local_def_id_to_hir_id(parent);
parent_hir_id.local_id =
tcx.hir_crate(()).owners[parent_hir_id.owner.def_id].unwrap().parenting[&id.def_id];
parent_hir_id
providers.hir_owner_parent = |tcx, owner_id| {
tcx.opt_local_parent(owner_id.def_id).map_or(CRATE_HIR_ID, |parent_def_id| {
let parent_owner_id = tcx.local_def_id_to_hir_id(parent_def_id).owner;
HirId {
owner: parent_owner_id,
local_id: tcx.hir_crate(()).owners[parent_owner_id.def_id].unwrap().parenting
[&owner_id.def_id],
}
})
};
providers.hir_attrs = |tcx, id| {