bjoernager/rust
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Also support fnptr(): async Fn in codegen

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This commit is contained in:
Michael Goulet 2024-02-26 22:53:45 +00:00
parent 4c0016a01f
commit 2252ff7302
2 changed files with 36 additions and 1 deletions
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6
compiler/rustc_mir_transform/src/shim.rs
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@ -37,7 +37,11 @@ fn make_shim<'tcx>(tcx: TyCtxt<'tcx>, instance: ty::InstanceDef<'tcx>) -> Body<'
}
ty::InstanceDef::FnPtrShim(def_id, ty) => {
let trait_ = tcx.trait_of_item(def_id).unwrap();
let adjustment = match tcx.fn_trait_kind_from_def_id(trait_) {
// Supports `Fn` or `async Fn` traits.
let adjustment = match tcx
.fn_trait_kind_from_def_id(trait_)
.or_else(|| tcx.async_fn_trait_kind_from_def_id(trait_))
{
Some(ty::ClosureKind::FnOnce) => Adjustment::Identity,
Some(ty::ClosureKind::Fn) => Adjustment::Deref { source: DerefSource::ImmRef },
Some(ty::ClosureKind::FnMut) => Adjustment::Deref { source: DerefSource::MutRef },