bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Use ConstArg for const param defaults

Browse source 
Now everything that actually affects the type system (i.e., excluding
const blocks, enum variant discriminants, etc.) *should* be using
`ConstArg`.
This commit is contained in:
Noah Lev 2024-06-07 20:26:50 -07:00
parent 67fccb7045
commit 1c49d406b6
12 changed files with 34 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

8
compiler/rustc_middle/src/ty/consts.rs
View file

@ -505,15 +505,15 @@ pub fn const_param_default<'tcx>(
tcx: TyCtxt<'tcx>,
def_id: LocalDefId,
) -> ty::EarlyBinder<'tcx, Const<'tcx>> {
let default_def_id = match tcx.hir_node_by_def_id(def_id) {
let default_ct = match tcx.hir_node_by_def_id(def_id) {
hir::Node::GenericParam(hir::GenericParam {
kind: hir::GenericParamKind::Const { default: Some(ac), .. },
kind: hir::GenericParamKind::Const { default: Some(ct), .. },
..
}) => ac.def_id,
}) => ct,
_ => span_bug!(
tcx.def_span(def_id),
"`const_param_default` expected a generic parameter with a constant"
),
};
ty::EarlyBinder::bind(Const::from_anon_const(tcx, default_def_id))
ty::EarlyBinder::bind(Const::from_const_arg(tcx, default_ct, FeedConstTy::No))
}