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Simplify DefIdForest.

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This commit is contained in:
Camille GILLOT 2021-12-05 13:08:24 +01:00
parent c9de7d7a20
commit a5b7e235d3
2 changed files with 5 additions and 5 deletions
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8
compiler/rustc_middle/src/ty/inhabitedness/def_id_forest.rs
View File

@ -1,6 +1,6 @@
use crate::ty::context::TyCtxt;
use crate::ty::{DefId, DefIdTree};
use rustc_hir::CRATE_HIR_ID;
use rustc_span::def_id::CRATE_DEF_ID;
use smallvec::SmallVec;
use std::mem;
use std::sync::Arc;
@ -43,8 +43,8 @@ impl<'tcx> DefIdForest {
/// Creates a forest consisting of a single tree representing the entire
/// crate.
#[inline]
pub fn full(tcx: TyCtxt<'tcx>) -> DefIdForest {
DefIdForest::from_id(tcx.hir().local_def_id(CRATE_HIR_ID).to_def_id())
pub fn full() -> DefIdForest {
DefIdForest::from_id(CRATE_DEF_ID.to_def_id())
}
/// Creates a forest containing a `DefId` and all its descendants.
@ -96,7 +96,7 @@ impl<'tcx> DefIdForest {
let mut ret: SmallVec<[_; 1]> = if let Some(first) = iter.next() {
SmallVec::from_slice(first.as_slice())
} else {
return DefIdForest::full(tcx);
return DefIdForest::full();
};
let mut next_ret: SmallVec<[_; 1]> = SmallVec::new();

2
compiler/rustc_middle/src/ty/inhabitedness/mod.rs
View File

@ -205,7 +205,7 @@ pub(crate) fn type_uninhabited_from<'tcx>(
match *ty.kind() {
Adt(def, substs) => def.uninhabited_from(tcx, substs, param_env),
Never => DefIdForest::full(tcx),
Never => DefIdForest::full(),
Tuple(ref tys) => DefIdForest::union(
tcx,