bjoernager/rust
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Reduce use of local_def_id_to_hir_id.

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This commit is contained in:
Camille GILLOT 2021-10-20 20:59:15 +02:00
parent ebcc847369
commit 67727aa7c3
39 changed files with 182 additions and 237 deletions
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13
compiler/rustc_const_eval/src/const_eval/fn_queries.rs
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@ -1,5 +1,5 @@
use rustc_hir as hir;
use rustc_hir::def_id::DefId;
use rustc_hir::def_id::{DefId, LocalDefId};
use rustc_middle::ty::query::Providers;
use rustc_middle::ty::TyCtxt;
use rustc_span::symbol::Symbol;
@ -15,7 +15,8 @@ pub fn is_unstable_const_fn(tcx: TyCtxt<'_>, def_id: DefId) -> Option<Symbol> {
}
}
pub fn is_parent_const_impl_raw(tcx: TyCtxt<'_>, hir_id: hir::HirId) -> bool {
pub fn is_parent_const_impl_raw(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool {
let hir_id = tcx.hir().local_def_id_to_hir_id(def_id);
let parent_id = tcx.hir().get_parent_node(hir_id);
matches!(
tcx.hir().get(parent_id),
@ -29,15 +30,15 @@ pub fn is_parent_const_impl_raw(tcx: TyCtxt<'_>, hir_id: hir::HirId) -> bool {
/// Checks whether the function has a `const` modifier or, in case it is an intrinsic, whether
/// said intrinsic has a `rustc_const_{un,}stable` attribute.
fn is_const_fn_raw(tcx: TyCtxt<'_>, def_id: DefId) -> bool {
let hir_id = tcx.hir().local_def_id_to_hir_id(def_id.expect_local());
let node = tcx.hir().get(hir_id);
let def_id = def_id.expect_local();
let node = tcx.hir().get_by_def_id(def_id);
if let hir::Node::ForeignItem(hir::ForeignItem { kind: hir::ForeignItemKind::Fn(..), .. }) =
node
{
// Intrinsics use `rustc_const_{un,}stable` attributes to indicate constness. All other
// foreign items cannot be evaluated at compile-time.
let hir_id = tcx.hir().local_def_id_to_hir_id(def_id);
if let Abi::RustIntrinsic | Abi::PlatformIntrinsic = tcx.hir().get_foreign_abi(hir_id) {
tcx.lookup_const_stability(def_id).is_some()
} else {
@ -50,7 +51,7 @@ fn is_const_fn_raw(tcx: TyCtxt<'_>, def_id: DefId) -> bool {
// If the function itself is not annotated with `const`, it may still be a `const fn`
// if it resides in a const trait impl.
is_parent_const_impl_raw(tcx, hir_id)
is_parent_const_impl_raw(tcx, def_id)
} else {
matches!(node, hir::Node::Ctor(_))
}