bjoernager/rust
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Auto merge of #88627 - cjgillot:noallocuse, r=petrochenkov

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Do not preallocate HirIds

Part of https://github.com/rust-lang/rust/pull/87234

r? `@petrochenkov`
This commit is contained in:
bors 2021-09-19 13:44:18 +00:00
commit 697118d23e
4 changed files with 32 additions and 100 deletions
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7
compiler/rustc_middle/src/hir/map/mod.rs
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@ -7,7 +7,7 @@ use rustc_data_structures::fingerprint::Fingerprint;
use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use rustc_data_structures::svh::Svh;
use rustc_hir::def::{DefKind, Res};
use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, CRATE_DEF_ID, CRATE_DEF_INDEX, LOCAL_CRATE};
use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, CRATE_DEF_ID, LOCAL_CRATE};
use rustc_hir::definitions::{DefKey, DefPath, DefPathHash};
use rustc_hir::intravisit::{self, Visitor};
use rustc_hir::itemlikevisit::ItemLikeVisitor;
@ -206,11 +206,6 @@ impl<'hir> Map<'hir> {
}
pub fn opt_def_kind(&self, local_def_id: LocalDefId) -> Option<DefKind> {
// FIXME(eddyb) support `find` on the crate root.
if local_def_id.to_def_id().index == CRATE_DEF_INDEX {
return Some(DefKind::Mod);
}
let hir_id = self.local_def_id_to_hir_id(local_def_id);
let def_kind = match self.find(hir_id)? {
Node::Item(item) => match item.kind {