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Fudge coroutine argument for CoroutineKindShim in fn_sig_for_fn_abi

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This commit is contained in:
Michael Goulet 2024-02-06 02:53:06 +00:00
parent 827bfe4154
commit ed7fca1f88
3 changed files with 34 additions and 4 deletions
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36
compiler/rustc_ty_utils/src/abi.rs
View File

@ -145,8 +145,6 @@ fn fn_sig_for_fn_abi<'tcx>(
)
}
ty::Coroutine(did, args) => {
// FIXME(async_closures): This isn't right for `CoroutineKindShim`.
let coroutine_kind = tcx.coroutine_kind(did).unwrap();
let sig = args.as_coroutine().sig();
@ -157,6 +155,40 @@ fn fn_sig_for_fn_abi<'tcx>(
var: ty::BoundVar::from_usize(bound_vars.len() - 1),
kind: ty::BoundRegionKind::BrEnv,
};
let mut ty = ty;
// When this `Closure` comes from a `CoroutineKindShim`,
// make sure we respect the `target_kind` in that shim.
// FIXME(async_closures): This shouldn't be needed, and we should be populating
// a separate def-id for these bodies.
if let InstanceDef::CoroutineKindShim { target_kind, .. } = instance.def {
// Grab the parent coroutine-closure. It has the same args for the purposes
// of substitution, so this will be okay to do.
let ty::CoroutineClosure(_, coroutine_closure_args) = *tcx
.instantiate_and_normalize_erasing_regions(
args,
param_env,
tcx.type_of(tcx.parent(did)),
)
.kind()
else {
bug!("CoroutineKindShim comes from calling a coroutine-closure");
};
let coroutine_closure_args = coroutine_closure_args.as_coroutine_closure();
ty = tcx.instantiate_bound_regions_with_erased(
coroutine_closure_args.coroutine_closure_sig().map_bound(|sig| {
sig.to_coroutine_given_kind_and_upvars(
tcx,
coroutine_closure_args.parent_args(),
did,
target_kind,
tcx.lifetimes.re_erased,
coroutine_closure_args.tupled_upvars_ty(),
coroutine_closure_args.coroutine_captures_by_ref_ty(),
)
}),
);
}
let env_ty = Ty::new_mut_ref(tcx, ty::Region::new_bound(tcx, ty::INNERMOST, br), ty);
let pin_did = tcx.require_lang_item(LangItem::Pin, None);

1
tests/ui/async-await/async-closures/async-fn-mut-for-async-fn.stderr
View File

@ -1 +0,0 @@
WARN rustc_codegen_ssa::mir::locals Unexpected initial operand type: expected std::pin::Pin<&ReErased mut Coroutine(DefId(0:8 ~ async_fn_mut_for_async_fn[3241]::main::{closure#0}::{closure#0}::{closure#0}), [i16, std::future::ResumeTy, (), (), CoroutineWitness(DefId(0:8 ~ async_fn_mut_for_async_fn[3241]::main::{closure#0}::{closure#0}::{closure#0}), []), ()])>, found std::pin::Pin<&ReErased mut Coroutine(DefId(0:8 ~ async_fn_mut_for_async_fn[3241]::main::{closure#0}::{closure#0}::{closure#0}), [i8, std::future::ResumeTy, (), (), CoroutineWitness(DefId(0:8 ~ async_fn_mut_for_async_fn[3241]::main::{closure#0}::{closure#0}::{closure#0}), []), ()])>.See <https://github.com/rust-lang/rust/issues/114858>.

1
tests/ui/async-await/async-closures/async-fn-once-for-async-fn.stderr
View File

@ -1 +0,0 @@
WARN rustc_codegen_ssa::mir::locals Unexpected initial operand type: expected std::pin::Pin<&ReErased mut Coroutine(DefId(0:8 ~ async_fn_once_for_async_fn[6cdf]::main::{closure#0}::{closure#0}::{closure#0}), [i32, std::future::ResumeTy, (), (), CoroutineWitness(DefId(0:8 ~ async_fn_once_for_async_fn[6cdf]::main::{closure#0}::{closure#0}::{closure#0}), []), ()])>, found std::pin::Pin<&ReErased mut Coroutine(DefId(0:8 ~ async_fn_once_for_async_fn[6cdf]::main::{closure#0}::{closure#0}::{closure#0}), [i8, std::future::ResumeTy, (), (), CoroutineWitness(DefId(0:8 ~ async_fn_once_for_async_fn[6cdf]::main::{closure#0}::{closure#0}::{closure#0}), []), ()])>.See <https://github.com/rust-lang/rust/issues/114858>.