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Auto merge of #108992 - petrochenkov:qcstore2, r=cjgillot

resolve: Querify most cstore access methods (subset)

A subset of https://github.com/rust-lang/rust/pull/108346 that is not on a hot path in any way.
This commit is contained in:
bors 2023-03-14 03:38:42 +00:00
commit bd43458d4c
11 changed files with 169 additions and 250 deletions

View file

@ -8,7 +8,7 @@ use rustc_ast::expand::allocator::AllocatorKind;
use rustc_ast::{self as ast, *};
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_data_structures::svh::Svh;
use rustc_data_structures::sync::MappedReadGuard;
use rustc_data_structures::sync::{MappedReadGuard, MappedWriteGuard, ReadGuard, WriteGuard};
use rustc_expand::base::SyntaxExtension;
use rustc_hir::def_id::{CrateNum, LocalDefId, StableCrateId, LOCAL_CRATE};
use rustc_hir::definitions::Definitions;
@ -133,8 +133,14 @@ impl<'a> std::fmt::Debug for CrateDump<'a> {
impl CStore {
pub fn from_tcx(tcx: TyCtxt<'_>) -> MappedReadGuard<'_, CStore> {
MappedReadGuard::map(tcx.cstore_untracked(), |c| {
c.as_any().downcast_ref::<CStore>().expect("`tcx.cstore` is not a `CStore`")
ReadGuard::map(tcx.untracked().cstore.read(), |cstore| {
cstore.as_any().downcast_ref::<CStore>().expect("`tcx.cstore` is not a `CStore`")
})
}
pub fn from_tcx_mut(tcx: TyCtxt<'_>) -> MappedWriteGuard<'_, CStore> {
WriteGuard::map(tcx.untracked().cstore.write(), |cstore| {
cstore.untracked_as_any().downcast_mut().expect("`tcx.cstore` is not a `CStore`")
})
}
@ -268,9 +274,6 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> {
) -> Self {
CrateLoader { tcx, cstore, used_extern_options }
}
pub fn cstore(&self) -> &CStore {
&self.cstore
}
fn existing_match(&self, name: Symbol, hash: Option<Svh>, kind: PathKind) -> Option<CrateNum> {
for (cnum, data) in self.cstore.iter_crate_data() {

View file

@ -30,7 +30,6 @@ use rustc_session::cstore::{
};
use rustc_session::Session;
use rustc_span::hygiene::ExpnIndex;
use rustc_span::source_map::{respan, Spanned};
use rustc_span::symbol::{kw, Ident, Symbol};
use rustc_span::{self, BytePos, ExpnId, Pos, Span, SyntaxContext, DUMMY_SP};
@ -930,7 +929,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> {
self.root.tables.generics_of.get(self, item_id).unwrap().decode((self, sess))
}
fn get_visibility(self, id: DefIndex) -> ty::Visibility<DefId> {
fn get_visibility(self, id: DefIndex) -> Visibility<DefId> {
self.root
.tables
.visibility
@ -1134,33 +1133,6 @@ impl<'a, 'tcx> CrateMetadataRef<'a> {
.decode((self, sess))
}
fn get_struct_field_names(
self,
id: DefIndex,
sess: &'a Session,
) -> impl Iterator<Item = Spanned<Symbol>> + 'a {
self.root
.tables
.children
.get(self, id)
.expect("fields not encoded for a struct")
.decode(self)
.map(move |index| respan(self.get_span(index, sess), self.item_name(index)))
}
fn get_struct_field_visibilities(
self,
id: DefIndex,
) -> impl Iterator<Item = Visibility<DefId>> + 'a {
self.root
.tables
.children
.get(self, id)
.expect("fields not encoded for a struct")
.decode(self)
.map(move |field_index| self.get_visibility(field_index))
}
fn get_inherent_implementations_for_type(
self,
tcx: TyCtxt<'tcx>,

View file

@ -15,12 +15,12 @@ use rustc_middle::middle::exported_symbols::ExportedSymbol;
use rustc_middle::middle::stability::DeprecationEntry;
use rustc_middle::ty::fast_reject::SimplifiedType;
use rustc_middle::ty::query::{ExternProviders, Providers};
use rustc_middle::ty::{self, TyCtxt, Visibility};
use rustc_session::cstore::{CrateSource, CrateStore};
use rustc_middle::ty::{self, TyCtxt};
use rustc_session::cstore::CrateStore;
use rustc_session::{Session, StableCrateId};
use rustc_span::hygiene::{ExpnHash, ExpnId};
use rustc_span::source_map::{Span, Spanned};
use rustc_span::symbol::{kw, Symbol};
use rustc_span::Span;
use rustc_data_structures::sync::Lrc;
use std::any::Any;
@ -501,35 +501,18 @@ pub(in crate::rmeta) fn provide(providers: &mut Providers) {
tcx.arena
.alloc_slice(&CStore::from_tcx(tcx).crate_dependencies_in_postorder(LOCAL_CRATE))
},
crates: |tcx, ()| tcx.arena.alloc_from_iter(CStore::from_tcx(tcx).crates_untracked()),
crates: |tcx, ()| {
tcx.arena.alloc_from_iter(CStore::from_tcx(tcx).iter_crate_data().map(|(cnum, _)| cnum))
},
..*providers
};
}
impl CStore {
pub fn struct_field_names_untracked<'a>(
&'a self,
def: DefId,
sess: &'a Session,
) -> impl Iterator<Item = Spanned<Symbol>> + 'a {
self.get_crate_data(def.krate).get_struct_field_names(def.index, sess)
}
pub fn struct_field_visibilities_untracked(
&self,
def: DefId,
) -> impl Iterator<Item = Visibility<DefId>> + '_ {
self.get_crate_data(def.krate).get_struct_field_visibilities(def.index)
}
pub fn ctor_untracked(&self, def: DefId) -> Option<(CtorKind, DefId)> {
self.get_crate_data(def.krate).get_ctor(def.index)
}
pub fn visibility_untracked(&self, def: DefId) -> Visibility<DefId> {
self.get_crate_data(def.krate).get_visibility(def.index)
}
pub fn module_children_untracked<'a>(
&'a self,
def_id: DefId,
@ -566,14 +549,6 @@ impl CStore {
)
}
pub fn fn_has_self_parameter_untracked(&self, def: DefId, sess: &Session) -> bool {
self.get_crate_data(def.krate).get_fn_has_self_parameter(def.index, sess)
}
pub fn crate_source_untracked(&self, cnum: CrateNum) -> Lrc<CrateSource> {
self.get_crate_data(cnum).source.clone()
}
pub fn get_span_untracked(&self, def_id: DefId, sess: &Session) -> Span {
self.get_crate_data(def_id.krate).get_span(def_id.index, sess)
}
@ -582,10 +557,6 @@ impl CStore {
self.get_crate_data(def.krate).def_kind(def.index)
}
pub fn crates_untracked(&self) -> impl Iterator<Item = CrateNum> + '_ {
self.iter_crate_data().map(|(cnum, _)| cnum)
}
pub fn item_generics_num_lifetimes(&self, def_id: DefId, sess: &Session) -> usize {
self.get_crate_data(def_id.krate).get_generics(def_id.index, sess).own_counts().lifetimes
}