diff options
Diffstat (limited to 'compiler/rustc_const_eval/src/transform/check_consts/mod.rs')
| -rw-r--r-- | compiler/rustc_const_eval/src/transform/check_consts/mod.rs | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/compiler/rustc_const_eval/src/transform/check_consts/mod.rs b/compiler/rustc_const_eval/src/transform/check_consts/mod.rs index 655ec345e..54868e418 100644 --- a/compiler/rustc_const_eval/src/transform/check_consts/mod.rs +++ b/compiler/rustc_const_eval/src/transform/check_consts/mod.rs @@ -8,7 +8,7 @@ use rustc_attr as attr; use rustc_hir as hir; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_middle::mir; -use rustc_middle::ty::{self, TyCtxt}; +use rustc_middle::ty::{self, PolyFnSig, TyCtxt}; use rustc_span::Symbol; pub use self::qualifs::Qualif; @@ -64,6 +64,17 @@ impl<'mir, 'tcx> ConstCx<'mir, 'tcx> { fn is_async(&self) -> bool { self.tcx.asyncness(self.def_id()).is_async() } + + pub fn fn_sig(&self) -> PolyFnSig<'tcx> { + let did = self.def_id().to_def_id(); + if self.tcx.is_closure(did) { + let ty = self.tcx.type_of(did); + let ty::Closure(_, substs) = ty.kind() else { bug!("type_of closure not ty::Closure") }; + substs.as_closure().sig() + } else { + self.tcx.fn_sig(did) + } + } } pub fn rustc_allow_const_fn_unstable( @@ -115,7 +126,7 @@ fn is_parent_const_stable_trait(tcx: TyCtxt<'_>, def_id: DefId) -> bool { let local_def_id = def_id.expect_local(); let hir_id = tcx.local_def_id_to_hir_id(local_def_id); - let Some(parent) = tcx.hir().find_parent_node(hir_id) else { return false }; + let Some(parent) = tcx.hir().opt_parent_id(hir_id) else { return false }; let parent_def = tcx.hir().get(parent); if !matches!( |