bjoernager/rust
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Auto merge of #83424 - cjgillot:noparam, r=lcnr

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GenericParam does not need to be a HIR owner.

The special case is not required.

Universal impl traits design to regular generic parameters, and their content is owned by the enclosing item.

Existential (and opaque) impl traits generate their own enclosing item, and are collected through it.
This commit is contained in:
bors 2021-03-25 16:35:19 +00:00
commit cb473c2c5b
4 changed files with 6 additions and 54 deletions
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22
compiler/rustc_middle/src/hir/map/collector.rs
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@ -373,26 +373,8 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
}
fn visit_generic_param(&mut self, param: &'hir GenericParam<'hir>) {
if let hir::GenericParamKind::Type {
synthetic: Some(hir::SyntheticTyParamKind::ImplTrait),
..
} = param.kind
{
debug_assert_eq!(
param.hir_id.owner,
self.definitions.opt_hir_id_to_local_def_id(param.hir_id).unwrap()
);
self.with_dep_node_owner(param.hir_id.owner, param, |this, hash| {
this.insert_with_hash(param.span, param.hir_id, Node::GenericParam(param), hash);
this.with_parent(param.hir_id, |this| {
intravisit::walk_generic_param(this, param);
});
});
} else {
self.insert(param.span, param.hir_id, Node::GenericParam(param));
intravisit::walk_generic_param(self, param);
}
self.insert(param.span, param.hir_id, Node::GenericParam(param));
intravisit::walk_generic_param(self, param);
}
fn visit_const_param_default(&mut self, param: HirId, ct: &'hir AnonConst) {