bjoernager/rust
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create def ids for impl traits during ast lowering

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Santiago Pastorino 2022-09-30 10:45:02 -03:00
parent 65445a571c
commit b2bef02bcd
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GPG key ID: 8131A24E0C79EFAF
6 changed files with 30 additions and 36 deletions
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27
compiler/rustc_ast_lowering/src/lib.rs
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@ -61,8 +61,8 @@ use rustc_hir::def_id::{LocalDefId, CRATE_DEF_ID};
use rustc_hir::definitions::DefPathData;
use rustc_hir::{ConstArg, GenericArg, ItemLocalId, ParamName, TraitCandidate};
use rustc_index::vec::{Idx, IndexVec};
use rustc_middle::span_bug;
use rustc_middle::ty::{ResolverAstLowering, TyCtxt};
use rustc_middle::{bug, span_bug};
use rustc_session::parse::feature_err;
use rustc_span::hygiene::MacroKind;
use rustc_span::source_map::DesugaringKind;
@ -1060,13 +1060,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
// Desugar `AssocTy: Bounds` into `AssocTy = impl Bounds`. We do this by
// constructing the HIR for `impl bounds...` and then lowering that.
let parent_def_id = self.current_hir_id_owner;
let impl_trait_node_id = self.next_node_id();
self.create_def(
parent_def_id.def_id,
impl_trait_node_id,
DefPathData::ImplTrait,
);
self.with_dyn_type_scope(false, |this| {
let node_id = this.next_node_id();
@ -1357,9 +1351,14 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
def_node_id,
bounds,
false,
&ImplTraitContext::TypeAliasesOpaqueTy,
itctx,
),
ImplTraitContext::Universal => {
self.create_def(
self.current_hir_id_owner.def_id,
def_node_id,
DefPathData::ImplTrait,
);
let span = t.span;
let ident = Ident::from_str_and_span(&pprust::ty_to_string(t), span);
let (param, bounds, path) =
@ -1453,7 +1452,17 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
// frequently opened issues show.
let opaque_ty_span = self.mark_span_with_reason(DesugaringKind::OpaqueTy, span, None);
let opaque_ty_def_id = self.local_def_id(opaque_ty_node_id);
let opaque_ty_def_id = match origin {
hir::OpaqueTyOrigin::TyAlias => self.create_def(
self.current_hir_id_owner.def_id,
opaque_ty_node_id,
DefPathData::ImplTrait,
),
hir::OpaqueTyOrigin::FnReturn(fn_def_id) => {
self.create_def(fn_def_id, opaque_ty_node_id, DefPathData::ImplTrait)
}
hir::OpaqueTyOrigin::AsyncFn(..) => bug!("unreachable"),
};
debug!(?opaque_ty_def_id);
// Contains the new lifetime definitions created for the TAIT (if any).