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| author | Nicholas Nethercote <n.nethercote@gmail.com> | 2024-08-08 17:18:20 +1000 |
|---|---|---|
| committer | Nicholas Nethercote <n.nethercote@gmail.com> | 2024-08-09 14:33:25 +1000 |
| commit | c4717cc9d15d30e08f03f51845c950175979bcc4 (patch) | |
| tree | b5fcace143e45b8b7e82b77fb2c8eec40751169f | |
| parent | 8640998869b28adab4b8faeaee169744804d3e68 (diff) | |
| download | rust-c4717cc9d15d30e08f03f51845c950175979bcc4.tar.gz rust-c4717cc9d15d30e08f03f51845c950175979bcc4.zip | |
Shrink `TyKind::FnPtr`.
By splitting the `FnSig` within `TyKind::FnPtr` into `FnSigTys` and `FnHeader`, which can be packed more efficiently. This reduces the size of the hot `TyKind` type from 32 bytes to 24 bytes on 64-bit platforms. This reduces peak memory usage by a few percent on some benchmarks. It also reduces cache misses and page faults similarly, though this doesn't translate to clear cycles or wall-time improvements on CI.
89 files changed, 298 insertions, 201 deletions
diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 7a925705806..bb5b73931ce 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -3989,7 +3989,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, '_, 'infcx, 'tcx> { } else { let ty = self.infcx.tcx.type_of(self.mir_def_id()).instantiate_identity(); match ty.kind() { - ty::FnDef(_, _) | ty::FnPtr(_) => self.annotate_fn_sig( + ty::FnDef(_, _) | ty::FnPtr(..) => self.annotate_fn_sig( self.mir_def_id(), self.infcx.tcx.fn_sig(self.mir_def_id()).instantiate_identity(), ), diff --git a/compiler/rustc_borrowck/src/lib.rs b/compiler/rustc_borrowck/src/lib.rs index 9c2a0036bef..30dd45d847c 100644 --- a/compiler/rustc_borrowck/src/lib.rs +++ b/compiler/rustc_borrowck/src/lib.rs @@ -1644,7 +1644,7 @@ impl<'mir, 'tcx> MirBorrowckCtxt<'_, 'mir, '_, 'tcx> { | ty::Pat(_, _) | ty::Slice(_) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::Closure(_, _) | ty::CoroutineClosure(_, _) @@ -1689,7 +1689,7 @@ impl<'mir, 'tcx> MirBorrowckCtxt<'_, 'mir, '_, 'tcx> { | ty::RawPtr(_, _) | ty::Ref(_, _, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::CoroutineWitness(..) | ty::Never diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index b13773ffe14..f9af133f0e5 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -1364,7 +1364,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { debug!("func_ty.kind: {:?}", func_ty.kind()); let sig = match func_ty.kind() { - ty::FnDef(..) | ty::FnPtr(_) => func_ty.fn_sig(tcx), + ty::FnDef(..) | ty::FnPtr(..) => func_ty.fn_sig(tcx), _ => { span_mirbug!(self, term, "call to non-function {:?}", func_ty); return; @@ -2420,7 +2420,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { let ty_left = left.ty(body, tcx); match ty_left.kind() { // Types with regions are comparable if they have a common super-type. - ty::RawPtr(_, _) | ty::FnPtr(_) => { + ty::RawPtr(_, _) | ty::FnPtr(..) => { let ty_right = right.ty(body, tcx); let common_ty = self.infcx.next_ty_var(body.source_info(location).span); self.sub_types( diff --git a/compiler/rustc_codegen_cranelift/src/common.rs b/compiler/rustc_codegen_cranelift/src/common.rs index 09317139936..cbede8bc579 100644 --- a/compiler/rustc_codegen_cranelift/src/common.rs +++ b/compiler/rustc_codegen_cranelift/src/common.rs @@ -69,7 +69,7 @@ fn clif_type_from_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> Option<types::Typ FloatTy::F64 => types::F64, FloatTy::F128 => unimplemented!("f16_f128"), }, - ty::FnPtr(_) => pointer_ty(tcx), + ty::FnPtr(..) => pointer_ty(tcx), ty::RawPtr(pointee_ty, _) | ty::Ref(_, pointee_ty, _) => { if has_ptr_meta(tcx, *pointee_ty) { return None; diff --git a/compiler/rustc_codegen_cranelift/src/value_and_place.rs b/compiler/rustc_codegen_cranelift/src/value_and_place.rs index 1aa28daeafc..c2aa1f20648 100644 --- a/compiler/rustc_codegen_cranelift/src/value_and_place.rs +++ b/compiler/rustc_codegen_cranelift/src/value_and_place.rs @@ -872,7 +872,7 @@ pub(crate) fn assert_assignable<'tcx>( (ty::Ref(_, a, _), ty::RawPtr(b, _)) | (ty::RawPtr(a, _), ty::Ref(_, b, _)) => { assert_assignable(fx, *a, *b, limit - 1); } - (ty::FnPtr(_), ty::FnPtr(_)) => { + (ty::FnPtr(..), ty::FnPtr(..)) => { let from_sig = fx.tcx.normalize_erasing_late_bound_regions( ParamEnv::reveal_all(), from_ty.fn_sig(fx.tcx), diff --git a/compiler/rustc_codegen_gcc/src/type_of.rs b/compiler/rustc_codegen_gcc/src/type_of.rs index d85ed4f12ff..b7b1be5369c 100644 --- a/compiler/rustc_codegen_gcc/src/type_of.rs +++ b/compiler/rustc_codegen_gcc/src/type_of.rs @@ -213,9 +213,8 @@ impl<'tcx> LayoutGccExt<'tcx> for TyAndLayout<'tcx> { // NOTE: we cannot remove this match like in the LLVM codegen because the call // to fn_ptr_backend_type handle the on-stack attribute. // TODO(antoyo): find a less hackish way to hande the on-stack attribute. - ty::FnPtr(sig) => { - cx.fn_ptr_backend_type(cx.fn_abi_of_fn_ptr(sig, ty::List::empty())) - } + ty::FnPtr(sig_tys, hdr) => cx + .fn_ptr_backend_type(cx.fn_abi_of_fn_ptr(sig_tys.with(hdr), ty::List::empty())), _ => self.scalar_gcc_type_at(cx, scalar, Size::ZERO), }; cx.scalar_types.borrow_mut().insert(self.ty, ty); diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs index ad638588612..87bea22d8dd 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs @@ -456,7 +456,7 @@ pub fn type_di_node<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, t: Ty<'tcx>) -> &'ll D { build_pointer_or_reference_di_node(cx, t, t.boxed_ty(), unique_type_id) } - ty::FnDef(..) | ty::FnPtr(_) => build_subroutine_type_di_node(cx, unique_type_id), + ty::FnDef(..) | ty::FnPtr(..) => build_subroutine_type_di_node(cx, unique_type_id), ty::Closure(..) => build_closure_env_di_node(cx, unique_type_id), ty::CoroutineClosure(..) => build_closure_env_di_node(cx, unique_type_id), ty::Coroutine(..) => enums::build_coroutine_di_node(cx, unique_type_id), diff --git a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs index 27558038927..359043a6d78 100644 --- a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs +++ b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs @@ -331,7 +331,7 @@ fn push_debuginfo_type_name<'tcx>( output.push(')'); } } - ty::FnDef(..) | ty::FnPtr(_) => { + ty::FnDef(..) | ty::FnPtr(..) => { // We've encountered a weird 'recursive type' // Currently, the only way to generate such a type // is by using 'impl trait': diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index bc3076528da..5f5ddd6f4f7 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -846,7 +846,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { ), None, ), - ty::FnPtr(_) => (None, Some(callee.immediate())), + ty::FnPtr(..) => (None, Some(callee.immediate())), _ => bug!("{} is not callable", callee.layout.ty), }; diff --git a/compiler/rustc_const_eval/src/check_consts/check.rs b/compiler/rustc_const_eval/src/check_consts/check.rs index 3ded81b90ff..69850a35c61 100644 --- a/compiler/rustc_const_eval/src/check_consts/check.rs +++ b/compiler/rustc_const_eval/src/check_consts/check.rs @@ -170,7 +170,7 @@ struct LocalReturnTyVisitor<'ck, 'mir, 'tcx> { impl<'ck, 'mir, 'tcx> TypeVisitor<TyCtxt<'tcx>> for LocalReturnTyVisitor<'ck, 'mir, 'tcx> { fn visit_ty(&mut self, t: Ty<'tcx>) { match t.kind() { - ty::FnPtr(_) => {} + ty::FnPtr(..) => {} ty::Ref(_, _, hir::Mutability::Mut) => { self.checker.check_op(ops::mut_ref::MutRef(self.kind)); t.super_visit_with(self) @@ -725,7 +725,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> { let (mut callee, mut fn_args) = match *fn_ty.kind() { ty::FnDef(def_id, fn_args) => (def_id, fn_args), - ty::FnPtr(_) => { + ty::FnPtr(..) => { self.check_op(ops::FnCallIndirect); return; } diff --git a/compiler/rustc_const_eval/src/const_eval/valtrees.rs b/compiler/rustc_const_eval/src/const_eval/valtrees.rs index 8227c045948..53693f9a6a6 100644 --- a/compiler/rustc_const_eval/src/const_eval/valtrees.rs +++ b/compiler/rustc_const_eval/src/const_eval/valtrees.rs @@ -132,7 +132,7 @@ fn const_to_valtree_inner<'tcx>( // Technically we could allow function pointers (represented as `ty::Instance`), but this is not guaranteed to // agree with runtime equality tests. - ty::FnPtr(_) => Err(ValTreeCreationError::NonSupportedType(ty)), + ty::FnPtr(..) => Err(ValTreeCreationError::NonSupportedType(ty)), ty::Ref(_, _, _) => { let derefd_place = ecx.deref_pointer(place)?; @@ -353,7 +353,7 @@ pub fn valtree_to_const_value<'tcx>( | ty::CoroutineClosure(..) | ty::Coroutine(..) | ty::CoroutineWitness(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Str | ty::Slice(_) | ty::Dynamic(..) => bug!("no ValTree should have been created for type {:?}", ty.kind()), diff --git a/compiler/rustc_const_eval/src/interpret/cast.rs b/compiler/rustc_const_eval/src/interpret/cast.rs index b2f07de0ac4..6a6e7250f33 100644 --- a/compiler/rustc_const_eval/src/interpret/cast.rs +++ b/compiler/rustc_const_eval/src/interpret/cast.rs @@ -97,7 +97,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { CastKind::PointerCoercion(PointerCoercion::UnsafeFnPointer) => { let src = self.read_immediate(src)?; match cast_ty.kind() { - ty::FnPtr(_) => { + ty::FnPtr(..) => { // No change to value self.write_immediate(*src, dest)?; } @@ -230,7 +230,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { src: &ImmTy<'tcx, M::Provenance>, cast_to: TyAndLayout<'tcx>, ) -> InterpResult<'tcx, ImmTy<'tcx, M::Provenance>> { - assert_matches!(src.layout.ty.kind(), ty::RawPtr(_, _) | ty::FnPtr(_)); + assert_matches!(src.layout.ty.kind(), ty::RawPtr(_, _) | ty::FnPtr(..)); assert!(cast_to.ty.is_integral()); let scalar = src.to_scalar(); diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs index 9210ec4e16f..d6d528ef361 100644 --- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs +++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs @@ -79,7 +79,7 @@ pub(crate) fn eval_nullary_intrinsic<'tcx>( | ty::RawPtr(_, _) | ty::Ref(_, _, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::Closure(_, _) | ty::CoroutineClosure(_, _) diff --git a/compiler/rustc_const_eval/src/interpret/stack.rs b/compiler/rustc_const_eval/src/interpret/stack.rs index 50dbced6a2a..0f6bf5c0336 100644 --- a/compiler/rustc_const_eval/src/interpret/stack.rs +++ b/compiler/rustc_const_eval/src/interpret/stack.rs @@ -483,7 +483,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { | ty::Bool | ty::Float(_) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::RawPtr(..) | ty::Char | ty::Ref(..) diff --git a/compiler/rustc_const_eval/src/interpret/step.rs b/compiler/rustc_const_eval/src/interpret/step.rs index 2527eca3446..aaee6f6d247 100644 --- a/compiler/rustc_const_eval/src/interpret/step.rs +++ b/compiler/rustc_const_eval/src/interpret/step.rs @@ -424,7 +424,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { self.tcx.mk_type_list_from_iter(extra_args.iter().map(|arg| arg.layout().ty)); let (callee, fn_abi, with_caller_location) = match *func.layout.ty.kind() { - ty::FnPtr(_sig) => { + ty::FnPtr(..) => { let fn_ptr = self.read_pointer(&func)?; let fn_val = self.get_ptr_fn(fn_ptr)?; (fn_val, self.fn_abi_of_fn_ptr(fn_sig_binder, extra_args)?, false) diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 460f5448634..47e86e0702b 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -616,7 +616,7 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValidityVisitor<'rt, 'tcx, M> { self.check_safe_pointer(value, PointerKind::Ref(*mutbl))?; Ok(true) } - ty::FnPtr(_sig) => { + ty::FnPtr(..) => { let value = self.read_scalar(value, ExpectedKind::FnPtr)?; // If we check references recursively, also check that this points to a function. diff --git a/compiler/rustc_const_eval/src/util/type_name.rs b/compiler/rustc_const_eval/src/util/type_name.rs index 3aa3b3b74e0..36c7bed5c11 100644 --- a/compiler/rustc_const_eval/src/util/type_name.rs +++ b/compiler/rustc_const_eval/src/util/type_name.rs @@ -35,7 +35,7 @@ impl<'tcx> Printer<'tcx> for AbsolutePathPrinter<'tcx> { | ty::Slice(_) | ty::RawPtr(_, _) | ty::Ref(_, _, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Never | ty::Tuple(_) | ty::Dynamic(_, _, _) => self.pretty_print_type(ty), diff --git a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs index 847a1e64706..ff008536b4b 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs @@ -66,7 +66,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { ty::Float(FloatTy::F32) => Some(InlineAsmType::F32), ty::Float(FloatTy::F64) => Some(InlineAsmType::F64), ty::Float(FloatTy::F128) => Some(InlineAsmType::F128), - ty::FnPtr(_) => Some(asm_ty_isize), + ty::FnPtr(..) => Some(asm_ty_isize), ty::RawPtr(ty, _) if self.is_thin_ptr_ty(ty) => Some(asm_ty_isize), ty::Adt(adt, args) if adt.repr().simd() => { let fields = &adt.non_enum_variant().fields; diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index c878095ba0d..196bb4548a7 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -951,7 +951,7 @@ fn check_param_wf(tcx: TyCtxt<'_>, param: &hir::GenericParam<'_>) -> Result<(), } else { let mut diag = match ty.kind() { ty::Bool | ty::Char | ty::Int(_) | ty::Uint(_) | ty::Error(_) => return Ok(()), - ty::FnPtr(_) => tcx.dcx().struct_span_err( + ty::FnPtr(..) => tcx.dcx().struct_span_err( hir_ty.span, "using function pointers as const generic parameters is forbidden", ), diff --git a/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs b/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs index e2d3ff558cf..89acb778d6c 100644 --- a/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs +++ b/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs @@ -172,7 +172,7 @@ impl<'tcx> InherentCollect<'tcx> { | ty::RawPtr(_, _) | ty::Ref(..) | ty::Never - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Tuple(..) => self.check_primitive_impl(id, self_ty), ty::Alias(ty::Projection | ty::Inherent | ty::Opaque, _) | ty::Param(_) => { Err(self.tcx.dcx().emit_err(errors::InherentNominal { span: item_span })) diff --git a/compiler/rustc_hir_analysis/src/variance/constraints.rs b/compiler/rustc_hir_analysis/src/variance/constraints.rs index 92baa41e07f..ce9e73bf245 100644 --- a/compiler/rustc_hir_analysis/src/variance/constraints.rs +++ b/compiler/rustc_hir_analysis/src/variance/constraints.rs @@ -317,8 +317,8 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> { self.add_constraint(current, data.index, variance); } - ty::FnPtr(sig) => { - self.add_constraints_from_sig(current, sig, variance); + ty::FnPtr(sig_tys, hdr) => { + self.add_constraints_from_sig(current, sig_tys.with(hdr), variance); } ty::Error(_) => { diff --git a/compiler/rustc_hir_typeck/src/callee.rs b/compiler/rustc_hir_typeck/src/callee.rs index 07f64ead6f6..44cb08e44eb 100644 --- a/compiler/rustc_hir_typeck/src/callee.rs +++ b/compiler/rustc_hir_typeck/src/callee.rs @@ -137,7 +137,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // If the callee is a bare function or a closure, then we're all set. match *adjusted_ty.kind() { - ty::FnDef(..) | ty::FnPtr(_) => { + ty::FnDef(..) | ty::FnPtr(..) => { let adjustments = self.adjust_steps(autoderef); self.apply_adjustments(callee_expr, adjustments); return Some(CallStep::Builtin(adjusted_ty)); @@ -467,7 +467,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { (fn_sig, Some(def_id)) } // FIXME(effects): these arms should error because we can't enforce them - ty::FnPtr(sig) => (sig, None), + ty::FnPtr(sig_tys, hdr) => (sig_tys.with(hdr), None), _ => { for arg in arg_exprs { self.check_expr(arg); diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs index a7953acc95c..589a9c5a719 100644 --- a/compiler/rustc_hir_typeck/src/closure.rs +++ b/compiler/rustc_hir_typeck/src/closure.rs @@ -336,9 +336,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .into_iter() .map(|obl| (obl.predicate, obl.cause.span)), ), - ty::FnPtr(sig) => match closure_kind { + ty::FnPtr(sig_tys, hdr) => match closure_kind { hir::ClosureKind::Closure => { - let expected_sig = ExpectedSig { cause_span: None, sig }; + let expected_sig = ExpectedSig { cause_span: None, sig: sig_tys.with(hdr) }; (Some(expected_sig), Some(ty::ClosureKind::Fn)) } hir::ClosureKind::Coroutine(_) | hir::ClosureKind::CoroutineClosure(_) => { diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index fcd3798eb48..0c83d50ad12 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -225,10 +225,10 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { // items to drop the unsafe qualifier. self.coerce_from_fn_item(a, b) } - ty::FnPtr(a_f) => { + ty::FnPtr(a_sig_tys, a_hdr) => { // We permit coercion of fn pointers to drop the // unsafe qualifier. - self.coerce_from_fn_pointer(a, a_f, b) + self.coerce_from_fn_pointer(a, a_sig_tys.with(a_hdr), b) } ty::Closure(closure_def_id_a, args_a) => { // Non-capturing closures are coercible to @@ -788,9 +788,8 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { self.commit_if_ok(|snapshot| { let outer_universe = self.infcx.universe(); - let result = if let ty::FnPtr(fn_ty_b) = b.kind() - && let (hir::Safety::Safe, hir::Safety::Unsafe) = - (fn_ty_a.safety(), fn_ty_b.safety()) + let result = if let ty::FnPtr(_, hdr_b) = b.kind() + && let (hir::Safety::Safe, hir::Safety::Unsafe) = (fn_ty_a.safety(), hdr_b.safety) { let unsafe_a = self.tcx.safe_to_unsafe_fn_ty(fn_ty_a); self.unify_and(unsafe_a, b, to_unsafe) @@ -842,7 +841,7 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { debug!("coerce_from_fn_item(a={:?}, b={:?})", a, b); match b.kind() { - ty::FnPtr(b_sig) => { + ty::FnPtr(_, b_hdr) => { let a_sig = a.fn_sig(self.tcx); if let ty::FnDef(def_id, _) = *a.kind() { // Intrinsics are not coercible to function pointers @@ -852,7 +851,7 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { // Safe `#[target_feature]` functions are not assignable to safe fn pointers (RFC 2396). - if b_sig.safety() == hir::Safety::Safe + if b_hdr.safety == hir::Safety::Safe && !self.tcx.codegen_fn_attrs(def_id).target_features.is_empty() { return Err(TypeError::TargetFeatureCast(def_id)); @@ -910,7 +909,7 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { // // All we care here is if any variable is being captured and not the exact paths, // so we check `upvars_mentioned` for root variables being captured. - ty::FnPtr(fn_ty) + ty::FnPtr(_, hdr) if self .tcx .upvars_mentioned(closure_def_id_a.expect_local()) @@ -923,7 +922,7 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { // or // `unsafe fn(arg0,arg1,...) -> _` let closure_sig = args_a.as_closure().sig(); - let safety = fn_ty.safety(); + let safety = hdr.safety; let pointer_ty = Ty::new_fn_ptr(self.tcx, self.tcx.signature_unclosure(closure_sig, safety)); debug!("coerce_closure_to_fn(a={:?}, b={:?}, pty={:?})", a, b, pointer_ty); diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index cef003e0a43..0c727d285a8 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -1527,7 +1527,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ty::Int(_) | ty::Uint(_) => Some(ty), ty::Char => Some(tcx.types.u8), ty::RawPtr(..) => Some(tcx.types.usize), - ty::FnDef(..) | ty::FnPtr(_) => Some(tcx.types.usize), + ty::FnDef(..) | ty::FnPtr(..) => Some(tcx.types.usize), _ => None, }); opt_ty.unwrap_or_else(|| self.next_int_var()) diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index 6b4edcd95d9..703273968c5 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -604,7 +604,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { expected: Ty<'tcx>, found: Ty<'tcx>, ) -> bool { - if let (ty::FnPtr(_), ty::Closure(def_id, _)) = (expected.kind(), found.kind()) { + if let (ty::FnPtr(..), ty::Closure(def_id, _)) = (expected.kind(), found.kind()) { if let Some(upvars) = self.tcx.upvars_mentioned(*def_id) { // Report upto four upvars being captured to reduce the amount error messages // reported back to the user. diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index 94133357a3e..b8af839094f 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -50,7 +50,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Not all of these (e.g., unsafe fns) implement `FnOnce`, // so we look for these beforehand. // FIXME(async_closures): These don't impl `FnOnce` by default. - ty::Closure(..) | ty::FnDef(..) | ty::FnPtr(_) => true, + ty::Closure(..) | ty::FnDef(..) | ty::FnPtr(..) => true, // If it's not a simple function, look for things which implement `FnOnce`. _ => { let Some(fn_once) = tcx.lang_items().fn_once_trait() else { diff --git a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs index 3bcb92d8029..db5139172b0 100644 --- a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs +++ b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs @@ -438,7 +438,7 @@ impl<'cx, 'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'cx, 'tcx> { | ty::RawPtr(..) | ty::Ref(..) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(..) | ty::Never | ty::Tuple(..) diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index 5b17c0d718a..77fa40fea39 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -1025,7 +1025,7 @@ fn ty_is_known_nonnull<'tcx>( let ty = tcx.try_normalize_erasing_regions(param_env, ty).unwrap_or(ty); match ty.kind() { - ty::FnPtr(_) => true, + ty::FnPtr(..) => true, ty::Ref(..) => true, ty::Adt(def, _) if def.is_box() && matches!(mode, CItemKind::Definition) => true, ty::Adt(def, args) if def.repr().transparent() && !def.is_union() => { @@ -1476,7 +1476,8 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> { ty::Array(inner_ty, _) => self.check_type_for_ffi(cache, inner_ty), - ty::FnPtr(sig) => { + ty::FnPtr(sig_tys, hdr) => { + let sig = sig_tys.with(hdr); if self.is_internal_abi(sig.abi()) { return FfiUnsafe { ty, @@ -1712,8 +1713,8 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> { type Result = ControlFlow<Ty<'tcx>>; fn visit_ty(&mut self, ty: Ty<'tcx>) -> Self::Result { - if let ty::FnPtr(sig) = ty.kind() - && !self.visitor.is_internal_abi(sig.abi()) + if let ty::FnPtr(_, hdr) = ty.kind() + && !self.visitor.is_internal_abi(hdr.abi) { self.tys.push(ty); } diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 8f8fd09c9e4..53380bfd721 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -427,7 +427,7 @@ impl<'tcx> Interner for TyCtxt<'tcx> { | ty::RawPtr(_, _) | ty::Ref(_, _, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::Closure(..) | ty::CoroutineClosure(..) diff --git a/compiler/rustc_middle/src/ty/error.rs b/compiler/rustc_middle/src/ty/error.rs index 2f9bdb16bb0..d974a86a303 100644 --- a/compiler/rustc_middle/src/ty/error.rs +++ b/compiler/rustc_middle/src/ty/error.rs @@ -130,7 +130,7 @@ impl<'tcx> Ty<'tcx> { DefKind::Ctor(CtorOf::Variant, _) => "enum constructor".into(), _ => "fn item".into(), }, - ty::FnPtr(_) => "fn pointer".into(), + ty::FnPtr(..) => "fn pointer".into(), ty::Dynamic(inner, ..) if let Some(principal) = inner.principal() => { format!("`dyn {}`", tcx.def_path_str(principal.def_id())).into() } @@ -194,7 +194,7 @@ impl<'tcx> Ty<'tcx> { DefKind::Ctor(CtorOf::Variant, _) => "enum constructor".into(), _ => "fn item".into(), }, - ty::FnPtr(_) => "fn pointer".into(), + ty::FnPtr(..) => "fn pointer".into(), ty::Dynamic(..) => "trait object".into(), ty::Closure(..) | ty::CoroutineClosure(..) => "closure".into(), ty::Coroutine(def_id, ..) => { diff --git a/compiler/rustc_middle/src/ty/flags.rs b/compiler/rustc_middle/src/ty/flags.rs index c3430b58406..1e38e30628a 100644 --- a/compiler/rustc_middle/src/ty/flags.rs +++ b/compiler/rustc_middle/src/ty/flags.rs @@ -250,9 +250,9 @@ impl FlagComputation { self.add_args(args); } - &ty::FnPtr(fn_sig) => self.bound_computation(fn_sig, |computation, fn_sig| { - computation.add_tys(fn_sig.inputs()); - computation.add_ty(fn_sig.output()); + &ty::FnPtr(sig_tys, _) => self.bound_computation(sig_tys, |computation, sig_tys| { + computation.add_tys(sig_tys.inputs()); + computation.add_ty(sig_tys.output()); }), } } diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index d7d27975f60..55511d0833c 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -801,7 +801,7 @@ where | ty::Int(_) | ty::Uint(_) | ty::Float(_) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Never | ty::FnDef(..) | ty::CoroutineWitness(..) @@ -986,7 +986,8 @@ where safe: None, }) } - ty::FnPtr(fn_sig) if offset.bytes() == 0 => { + ty::FnPtr(sig_tys, hdr) if offset.bytes() == 0 => { + let fn_sig = sig_tys.with(hdr); tcx.layout_of(param_env.and(Ty::new_fn_ptr(tcx, fn_sig))).ok().map(|layout| { PointeeInfo { size: layout.size, align: layout.align.abi, safe: None } }) diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index 9736428e6f7..2e6b9618341 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -2149,6 +2149,6 @@ mod size_asserts { use super::*; // tidy-alphabetical-start static_assert_size!(PredicateKind<'_>, 32); - static_assert_size!(WithCachedTypeInfo<TyKind<'_>>, 56); + static_assert_size!(WithCachedTypeInfo<TyKind<'_>>, 48); // tidy-alphabetical-end } diff --git a/compiler/rustc_middle/src/ty/print/mod.rs b/compiler/rustc_middle/src/ty/print/mod.rs index 6cce79dfdc1..cc746746760 100644 --- a/compiler/rustc_middle/src/ty/print/mod.rs +++ b/compiler/rustc_middle/src/ty/print/mod.rs @@ -290,7 +290,7 @@ fn characteristic_def_id_of_type_cached<'a>( | ty::Int(_) | ty::Uint(_) | ty::Str - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Alias(..) | ty::Placeholder(..) | ty::Param(_) diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index 29d72183dd3..2dd0caf4f87 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -696,7 +696,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { p!(print(sig), " {{", print_value_path(def_id, args), "}}"); } } - ty::FnPtr(ref bare_fn) => p!(print(bare_fn)), + ty::FnPtr(ref sig_tys, hdr) => p!(print(sig_tys.with(hdr))), ty::Infer(infer_ty) => { if self.should_print_verbose() { p!(write("{:?}", ty.kind())); @@ -1678,7 +1678,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { } } } - ty::FnPtr(_) => { + ty::FnPtr(..) => { // FIXME: We should probably have a helper method to share code with the "Byte strings" // printing above (which also has to handle pointers to all sorts of things). if let Some(GlobalAlloc::Function { instance, .. }) = @@ -1741,7 +1741,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { p!(write("{:?}", char::try_from(int).unwrap())) } // Pointer types - ty::Ref(..) | ty::RawPtr(_, _) | ty::FnPtr(_) => { + ty::Ref(..) | ty::RawPtr(_, _) | ty::FnPtr(..) => { let data = int.to_bits(self.tcx().data_layout.pointer_size); self.typed_value( |this| { diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 8fb44a5f0b1..80b33c2cda9 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -374,7 +374,7 @@ impl<'tcx> TypeSuperFoldable<TyCtxt<'tcx>> for Ty<'tcx> { ), ty::Tuple(ts) => ty::Tuple(ts.try_fold_with(folder)?), ty::FnDef(def_id, args) => ty::FnDef(def_id, args.try_fold_with(folder)?), - ty::FnPtr(f) => ty::FnPtr(f.try_fold_with(folder)?), + ty::FnPtr(sig_tys, hdr) => ty::FnPtr(sig_tys.try_fold_with(folder)?, hdr), ty::Ref(r, ty, mutbl) => { ty::Ref(r.try_fold_with(folder)?, ty.try_fold_with(folder)?, mutbl) } @@ -424,7 +424,7 @@ impl<'tcx> TypeSuperVisitable<TyCtxt<'tcx>> for Ty<'tcx> { } ty::Tuple(ts) => ts.visit_with(visitor), ty::FnDef(_, args) => args.visit_with(visitor), - ty::FnPtr(ref f) => f.visit_with(visitor), + ty::FnPtr(ref sig_tys, _) => sig_tys.visit_with(visitor), ty::Ref(r, ty, _) => { try_visit!(r.visit_with(visitor)); ty.visit_with(visitor) diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index fe2ea2e5da5..609d929e4a1 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -658,7 +658,8 @@ impl<'tcx> Ty<'tcx> { #[inline] pub fn new_fn_ptr(tcx: TyCtxt<'tcx>, fty: PolyFnSig<'tcx>) -> Ty<'tcx> { - Ty::new(tcx, FnPtr(fty)) + let (sig_tys, hdr) = fty.split(); + Ty::new(tcx, FnPtr(sig_tys, hdr)) } #[inline] @@ -1182,7 +1183,7 @@ impl<'tcx> Ty<'tcx> { | Float(_) | Uint(_) | FnDef(..) - | FnPtr(_) + | FnPtr(..) | RawPtr(_, _) | Infer(IntVar(_) | FloatVar(_)) ) @@ -1333,7 +1334,7 @@ impl<'tcx> Ty<'tcx> { pub fn fn_sig(self, tcx: TyCtxt<'tcx>) -> PolyFnSig<'tcx> { match self.kind() { FnDef(def_id, args) => tcx.fn_sig(*def_id).instantiate(tcx, args), - FnPtr(f) => *f, + FnPtr(sig_tys, hdr) => sig_tys.with(*hdr), Error(_) => { // ignore errors (#54954) Binder::dummy(ty::FnSig { @@ -1352,12 +1353,12 @@ impl<'tcx> Ty<'tcx> { #[inline] pub fn is_fn(self) -> bool { - matches!(self.kind(), FnDef(..) | FnPtr(_)) + matches!(self.kind(), FnDef(..) | FnPtr(..)) } #[inline] pub fn is_fn_ptr(self) -> bool { - matches!(self.kind(), FnPtr(_)) + matches!(self.kind(), FnPtr(..)) } #[inline] @@ -1599,7 +1600,7 @@ impl<'tcx> Ty<'tcx> { | ty::Bool | ty::Float(_) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::RawPtr(..) | ty::Char | ty::Ref(..) @@ -1791,7 +1792,7 @@ impl<'tcx> Ty<'tcx> { | ty::Bool | ty::Float(_) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::RawPtr(..) | ty::Char | ty::Ref(..) @@ -1941,7 +1942,7 @@ impl<'tcx> Ty<'tcx> { | RawPtr(_, _) | Ref(_, _, _) | FnDef(_, _) - | FnPtr(_) + | FnPtr(..) | Dynamic(_, _, _) | Closure(_, _) | CoroutineClosure(_, _) @@ -1972,6 +1973,6 @@ mod size_asserts { use super::*; // tidy-alphabetical-start static_assert_size!(ty::RegionKind<'_>, 24); - static_assert_size!(ty::TyKind<'_>, 32); + static_assert_size!(ty::TyKind<'_>, 24); // tidy-alphabetical-end } diff --git a/compiler/rustc_middle/src/ty/util.rs b/compiler/rustc_middle/src/ty/util.rs index 3cf8531bb62..0343c762313 100644 --- a/compiler/rustc_middle/src/ty/util.rs +++ b/compiler/rustc_middle/src/ty/util.rs @@ -1282,7 +1282,7 @@ impl<'tcx> Ty<'tcx> { | ty::RawPtr(_, _) | ty::FnDef(..) | ty::Error(_) - | ty::FnPtr(_) => true, + | ty::FnPtr(..) => true, ty::Tuple(fields) => fields.iter().all(Self::is_trivially_freeze), ty::Pat(ty, _) | ty::Slice(ty) | ty::Array(ty, _) => ty.is_trivially_freeze(), ty::Adt(..) @@ -1322,7 +1322,7 @@ impl<'tcx> Ty<'tcx> { | ty::RawPtr(_, _) | ty::FnDef(..) | ty::Error(_) - | ty::FnPtr(_) => true, + | ty::FnPtr(..) => true, ty::Tuple(fields) => fields.iter().all(Self::is_trivially_unpin), ty::Pat(ty, _) | ty::Slice(ty) | ty::Array(ty, _) => ty.is_trivially_unpin(), ty::Adt(..) @@ -1361,7 +1361,7 @@ impl<'tcx> Ty<'tcx> { | ty::Ref(..) | ty::RawPtr(..) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Infer(ty::FreshIntTy(_)) | ty::Infer(ty::FreshFloatTy(_)) => AsyncDropGlueMorphology::Noop, @@ -1544,7 +1544,7 @@ impl<'tcx> Ty<'tcx> { ty::Pat(..) | ty::Ref(..) | ty::Array(..) | ty::Slice(_) | ty::Tuple(..) => true, // Raw pointers use bitwise comparison. - ty::RawPtr(_, _) | ty::FnPtr(_) => true, + ty::RawPtr(_, _) | ty::FnPtr(..) => true, // Floating point numbers are not `Eq`. ty::Float(_) => false, @@ -1675,7 +1675,7 @@ pub fn needs_drop_components_with_async<'tcx>( | ty::Float(_) | ty::Never | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Char | ty::RawPtr(_, _) | ty::Ref(..) @@ -1742,7 +1742,7 @@ pub fn is_trivially_const_drop(ty: Ty<'_>) -> bool { | ty::RawPtr(_, _) | ty::Ref(..) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Never | ty::Foreign(_) => true, diff --git a/compiler/rustc_middle/src/ty/walk.rs b/compiler/rustc_middle/src/ty/walk.rs index 2dd7a96f192..0a328352e2e 100644 --- a/compiler/rustc_middle/src/ty/walk.rs +++ b/compiler/rustc_middle/src/ty/walk.rs @@ -189,9 +189,12 @@ fn push_inner<'tcx>(stack: &mut TypeWalkerStack<'tcx>, parent: GenericArg<'tcx>) stack.extend(args.iter().rev()); } ty::Tuple(ts) => stack.extend(ts.iter().rev().map(GenericArg::from)), - ty::FnPtr(sig) => { - stack.push(sig.skip_binder().output().into()); - stack.extend(sig.skip_binder().inputs().iter().copied().rev().map(|ty| ty.into())); + ty::FnPtr(sig_tys, hdr) => { + let fn_sig = sig_tys.with(hdr); + stack.push(fn_sig.skip_binder().output().into()); + stack.extend( + fn_sig.skip_binder().inputs().iter().copied().rev().map(|ty| ty.into()), + ); } }, GenericArgKind::Lifetime(_) => {} diff --git a/compiler/rustc_mir_dataflow/src/move_paths/builder.rs b/compiler/rustc_mir_dataflow/src/move_paths/builder.rs index c26a72e4543..86091379f5a 100644 --- a/compiler/rustc_mir_dataflow/src/move_paths/builder.rs +++ b/compiler/rustc_mir_dataflow/src/move_paths/builder.rs @@ -158,7 +158,7 @@ impl<'b, 'a, 'tcx, F: Fn(Ty<'tcx>) -> bool> Gatherer<'b, 'a, 'tcx, F> { | ty::Pat(_, _) | ty::Slice(_) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::Closure(..) | ty::CoroutineClosure(..) @@ -201,7 +201,7 @@ impl<'b, 'a, 'tcx, F: Fn(Ty<'tcx>) -> bool> Gatherer<'b, 'a, 'tcx, F> { | ty::RawPtr(_, _) | ty::Ref(_, _, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::CoroutineWitness(..) | ty::Never diff --git a/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs b/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs index f52a4524d78..edb6bc4fbea 100644 --- a/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs +++ b/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs @@ -64,7 +64,7 @@ impl<'tcx> MirPass<'tcx> for AbortUnwindingCalls { let ty = func.ty(body, tcx); let sig = ty.fn_sig(tcx); let fn_def_id = match ty.kind() { - ty::FnPtr(_) => None, + ty::FnPtr(..) => None, &ty::FnDef(def_id, _) => Some(def_id), _ => span_bug!(span, "invalid callee of type {:?}", ty), }; diff --git a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs index 4132e604f20..9a2cc057232 100644 --- a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs +++ b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs @@ -57,7 +57,7 @@ fn has_ffi_unwind_calls(tcx: TyCtxt<'_>, local_def_id: LocalDefId) -> bool { }; let fn_def_id = match ty.kind() { - ty::FnPtr(_) => None, + ty::FnPtr(..) => None, &ty::FnDef(def_id, _) => { // Rust calls cannot themselves create foreign unwinds (even if they use a non-Rust ABI). // So the leak of the foreign unwind into Rust can only be elsewhere, not here. diff --git a/compiler/rustc_mir_transform/src/shim.rs b/compiler/rustc_mir_transform/src/shim.rs index f41f3ef656c..49d55166ec5 100644 --- a/compiler/rustc_mir_transform/src/shim.rs +++ b/compiler/rustc_mir_transform/src/shim.rs @@ -437,7 +437,7 @@ fn build_clone_shim<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId, self_ty: Ty<'tcx>) - let src = tcx.mk_place_deref(Place::from(Local::new(1 + 0))); match self_ty.kind() { - ty::FnDef(..) | ty::FnPtr(_) => builder.copy_shim(), + ty::FnDef(..) | ty::FnPtr(..) => builder.copy_shim(), ty::Closure(_, args) => builder.tuple_like_shim(dest, src, args.as_closure().upvar_tys()), ty::CoroutineClosure(_, args) => { builder.tuple_like_shim(dest, src, args.as_coroutine_closure().upvar_tys()) diff --git a/compiler/rustc_next_trait_solver/src/canonicalizer.rs b/compiler/rustc_next_trait_solver/src/canonicalizer.rs index 82488088e30..394518daa42 100644 --- a/compiler/rustc_next_trait_solver/src/canonicalizer.rs +++ b/compiler/rustc_next_trait_solver/src/canonicalizer.rs @@ -360,7 +360,7 @@ impl<D: SolverDelegate<Interner = I>, I: Interner> TypeFolder<I> for Canonicaliz | ty::Ref(_, _, _) | ty::Pat(_, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::Closure(..) | ty::CoroutineClosure(..) diff --git a/compiler/rustc_next_trait_solver/src/coherence.rs b/compiler/rustc_next_trait_solver/src/coherence.rs index f22ea41c512..2461ef0c0df 100644 --- a/compiler/rustc_next_trait_solver/src/coherence.rs +++ b/compiler/rustc_next_trait_solver/src/coherence.rs @@ -334,7 +334,7 @@ where | ty::Str | ty::FnDef(..) | ty::Pat(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Array(..) | ty::Slice(..) | ty::RawPtr(..) diff --git a/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs b/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs index 84921e87fb3..bb05eb4c256 100644 --- a/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs +++ b/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs @@ -533,7 +533,7 @@ where | ty::RawPtr(_, _) | ty::Ref(_, _, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(..) | ty::Closure(..) | ty::CoroutineClosure(..) @@ -620,7 +620,7 @@ where | ty::RawPtr(_, _) | ty::Ref(_, _, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Alias(..) | ty::Closure(..) | ty::CoroutineClosure(..) diff --git a/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs b/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs index 00837f7cdd8..f32531821ec 100644 --- a/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs +++ b/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs @@ -31,7 +31,7 @@ where | ty::Bool | ty::Float(_) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Error(_) | ty::Never | ty::Char => Ok(vec![]), @@ -117,7 +117,7 @@ where | ty::Bool | ty::Float(_) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::RawPtr(..) | ty::Char | ty::Ref(..) @@ -178,7 +178,7 @@ where { match ty.kind() { // impl Copy/Clone for FnDef, FnPtr - ty::FnDef(..) | ty::FnPtr(_) | ty::Error(_) => Ok(vec![]), + ty::FnDef(..) | ty::FnPtr(..) | ty::Error(_) => Ok(vec![]), // Implementations are provided in core ty::Uint(_) @@ -269,7 +269,8 @@ pub(in crate::solve) fn extract_tupled_inputs_and_output_from_callable<I: Intern } } // keep this in sync with assemble_fn_pointer_candidates until the old solver is removed. - ty::FnPtr(sig) => { + ty::FnPtr(sig_tys, hdr) => { + let sig = sig_tys.with(hdr); if sig.is_fn_trait_compatible() { Ok(Some( sig.map_bound(|sig| (Ty::new_tup(cx, sig.inputs().as_slice()), sig.output())), diff --git a/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs b/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs index b1dba712f79..1314b7eb6ff 100644 --- a/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs +++ b/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs @@ -1145,7 +1145,7 @@ where | ty::RawPtr(_, _) | ty::Ref(_, _, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Closure(..) | ty::CoroutineClosure(..) | ty::Coroutine(_, _) diff --git a/compiler/rustc_passes/src/abi_test.rs b/compiler/rustc_passes/src/abi_test.rs index 839b96fb3de..d0cc123c41a 100644 --- a/compiler/rustc_passes/src/abi_test.rs +++ b/compiler/rustc_passes/src/abi_test.rs @@ -127,14 +127,17 @@ fn dump_abi_of_fn_type(tcx: TyCtxt<'_>, item_def_id: LocalDefId, attr: &Attribut for meta_item in meta_items { match meta_item.name_or_empty() { sym::debug => { - let ty::FnPtr(sig) = ty.kind() else { + let ty::FnPtr(sig_tys, hdr) = ty.kind() else { span_bug!( meta_item.span(), "`#[rustc_abi(debug)]` on a type alias requires function pointer type" ); }; let abi = unwrap_fn_abi( - tcx.fn_abi_of_fn_ptr(param_env.and((*sig, /* extra_args */ ty::List::empty()))), + tcx.fn_abi_of_fn_ptr( + param_env + .and((sig_tys.with(*hdr), /* extra_args */ ty::List::empty())), + ), tcx, item_def_id, ); @@ -155,7 +158,7 @@ fn dump_abi_of_fn_type(tcx: TyCtxt<'_>, item_def_id: LocalDefId, attr: &Attribut "`#[rustc_abi(assert_eq)]` on a type alias requires pair type" ); }; - let ty::FnPtr(sig1) = field1.kind() else { + let ty::FnPtr(sig_tys1, hdr1) = field1.kind() else { span_bug!( meta_item.span(), "`#[rustc_abi(assert_eq)]` on a type alias requires pair of function pointer types" @@ -163,12 +166,13 @@ fn dump_abi_of_fn_type(tcx: TyCtxt<'_>, item_def_id: LocalDefId, attr: &Attribut }; let abi1 = unwrap_fn_abi( tcx.fn_abi_of_fn_ptr( - param_env.and((*sig1, /* extra_args */ ty::List::empty())), + param_env + .and((sig_tys1.with(*hdr1), /* extra_args */ ty::List::empty())), ), tcx, item_def_id, ); - let ty::FnPtr(sig2) = field2.kind() else { + let ty::FnPtr(sig_tys2, hdr2) = field2.kind() else { span_bug!( meta_item.span(), "`#[rustc_abi(assert_eq)]` on a type alias requires pair of function pointer types" @@ -176,7 +180,8 @@ fn dump_abi_of_fn_type(tcx: TyCtxt<'_>, item_def_id: LocalDefId, attr: &Attribut }; let abi2 = unwrap_fn_abi( tcx.fn_abi_of_fn_ptr( - param_env.and((*sig2, /* extra_args */ ty::List::empty())), + param_env + .and((sig_tys2.with(*hdr2), /* extra_args */ ty::List::empty())), ), tcx, item_def_id, diff --git a/compiler/rustc_pattern_analysis/src/rustc.rs b/compiler/rustc_pattern_analysis/src/rustc.rs index 6290aeb2523..cc978b12083 100644 --- a/compiler/rustc_pattern_analysis/src/rustc.rs +++ b/compiler/rustc_pattern_analysis/src/rustc.rs @@ -414,7 +414,7 @@ impl<'p, 'tcx: 'p> RustcPatCtxt<'p, 'tcx> { | ty::Foreign(_) | ty::RawPtr(_, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Pat(_, _) | ty::Dynamic(_, _, _) | ty::Closure(..) diff --git a/compiler/rustc_sanitizers/src/cfi/typeid/itanium_cxx_abi/encode.rs b/compiler/rustc_sanitizers/src/cfi/typeid/itanium_cxx_abi/encode.rs index 61de338eab1..a4e4f50e8f2 100644 --- a/compiler/rustc_sanitizers/src/cfi/typeid/itanium_cxx_abi/encode.rs +++ b/compiler/rustc_sanitizers/src/cfi/typeid/itanium_cxx_abi/encode.rs @@ -607,10 +607,15 @@ pub fn encode_ty<'tcx>( typeid.push_str(&s); } - ty::FnPtr(fn_sig) => { + ty::FnPtr(sig_tys, hdr) => { // PF<return-type><parameter-type1..parameter-typeN>E let mut s = String::from("P"); - s.push_str(&encode_fnsig(tcx, &fn_sig.skip_binder(), dict, TypeIdOptions::empty())); + s.push_str(&encode_fnsig( + tcx, + &sig_tys.with(*hdr).skip_binder(), + dict, + TypeIdOptions::empty(), + )); compress(dict, DictKey::Ty(ty, TyQ::None), &mut s); typeid.push_str(&s); } diff --git a/compiler/rustc_smir/src/rustc_internal/internal.rs b/compiler/rustc_smir/src/rustc_internal/internal.rs index a4577461094..f52cb010a87 100644 --- a/compiler/rustc_smir/src/rustc_internal/internal.rs +++ b/compiler/rustc_smir/src/rustc_internal/internal.rs @@ -131,7 +131,10 @@ impl RustcInternal for RigidTy { RigidTy::FnDef(def, args) => { rustc_ty::TyKind::FnDef(def.0.internal(tables, tcx), args.internal(tables, tcx)) } - RigidTy::FnPtr(sig) => rustc_ty::TyKind::FnPtr(sig.internal(tables, tcx)), + RigidTy::FnPtr(sig) => { + let (sig_tys, hdr) = sig.internal(tables, tcx).split(); + rustc_ty::TyKind::FnPtr(sig_tys, hdr) + } RigidTy::Closure(def, args) => { rustc_ty::TyKind::Closure(def.0.internal(tables, tcx), args.internal(tables, tcx)) } diff --git a/compiler/rustc_smir/src/rustc_smir/convert/ty.rs b/compiler/rustc_smir/src/rustc_smir/convert/ty.rs index ef2eb7d52ea..332fe22d869 100644 --- a/compiler/rustc_smir/src/rustc_smir/convert/ty.rs +++ b/compiler/rustc_smir/src/rustc_smir/convert/ty.rs @@ -352,7 +352,9 @@ impl<'tcx> Stable<'tcx> for ty::TyKind<'tcx> { ty::FnDef(def_id, generic_args) => { TyKind::RigidTy(RigidTy::FnDef(tables.fn_def(*def_id), generic_args.stable(tables))) } - ty::FnPtr(poly_fn_sig) => TyKind::RigidTy(RigidTy::FnPtr(poly_fn_sig.stable(tables))), + ty::FnPtr(sig_tys, hdr) => { + TyKind::RigidTy(RigidTy::FnPtr(sig_tys.with(*hdr).stable(tables))) + } ty::Dynamic(existential_predicates, region, dyn_kind) => { TyKind::RigidTy(RigidTy::Dynamic( existential_predicates diff --git a/compiler/rustc_symbol_mangling/src/v0.rs b/compiler/rustc_symbol_mangling/src/v0.rs index c2451c08d11..3a606f244e3 100644 --- a/compiler/rustc_symbol_mangling/src/v0.rs +++ b/compiler/rustc_symbol_mangling/src/v0.rs @@ -427,7 +427,8 @@ impl<'tcx> Printer<'tcx> for SymbolMangler<'tcx> { self.print_def_path(def_id, &[])?; } - ty::FnPtr(sig) => { + ty::FnPtr(sig_tys, hdr) => { + let sig = sig_tys.with(hdr); self.push("F"); self.in_binder(&sig, |cx, sig| { if sig.safety == hir::Safety::Unsafe { diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs index 8ccb2a8483a..5193333be8e 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs @@ -1087,9 +1087,9 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { values } - (ty::FnDef(did1, args1), ty::FnPtr(sig2)) => { + (ty::FnDef(did1, args1), ty::FnPtr(sig_tys2, hdr2)) => { let sig1 = self.tcx.fn_sig(*did1).instantiate(self.tcx, args1); - let mut values = self.cmp_fn_sig(&sig1, sig2); + let mut values = self.cmp_fn_sig(&sig1, &sig_tys2.with(*hdr2)); values.0.push_highlighted(format!( " {{{}}}", self.tcx.def_path_str_with_args(*did1, args1) @@ -1097,16 +1097,18 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { values } - (ty::FnPtr(sig1), ty::FnDef(did2, args2)) => { + (ty::FnPtr(sig_tys1, hdr1), ty::FnDef(did2, args2)) => { let sig2 = self.tcx.fn_sig(*did2).instantiate(self.tcx, args2); - let mut values = self.cmp_fn_sig(sig1, &sig2); + let mut values = self.cmp_fn_sig(&sig_tys1.with(*hdr1), &sig2); values .1 .push_normal(format!(" {{{}}}", self.tcx.def_path_str_with_args(*did2, args2))); values } - (ty::FnPtr(sig1), ty::FnPtr(sig2)) => self.cmp_fn_sig(sig1, sig2), + (ty::FnPtr(sig_tys1, hdr1), ty::FnPtr(sig_tys2, hdr2)) => { + self.cmp_fn_sig(&sig_tys1.with(*hdr1), &sig_tys2.with(*hdr2)) + } _ => { let mut strs = (DiagStyledString::new(), DiagStyledString::new()); diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs index 864510bb650..e77c738acce 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs @@ -441,9 +441,9 @@ impl<T> Trait<T> for X { } } } - (ty::FnPtr(sig), ty::FnDef(def_id, _)) - | (ty::FnDef(def_id, _), ty::FnPtr(sig)) => { - if tcx.fn_sig(def_id).skip_binder().safety() < sig.safety() { + (ty::FnPtr(_, hdr), ty::FnDef(def_id, _)) + | (ty::FnDef(def_id, _), ty::FnPtr(_, hdr)) => { + if tcx.fn_sig(def_id).skip_binder().safety() < hdr.safety { diag.note( "unsafe functions cannot be coerced into safe function pointers", ); diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs index ee159aa0b77..35f68a56d2d 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs @@ -383,8 +383,9 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { return; } match (&expected_inner.kind(), &found_inner.kind()) { - (ty::FnPtr(sig), ty::FnDef(did, args)) => { - let expected_sig = &(self.normalize_fn_sig)(*sig); + (ty::FnPtr(sig_tys, hdr), ty::FnDef(did, args)) => { + let sig = sig_tys.with(*hdr); + let expected_sig = &(self.normalize_fn_sig)(sig); let found_sig = &(self.normalize_fn_sig)(self.tcx.fn_sig(*did).instantiate(self.tcx, args)); @@ -402,11 +403,11 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { (false, true) => FunctionPointerSuggestion::RemoveRef { span, fn_name }, (true, true) => { diag.subdiagnostic(FnItemsAreDistinct); - FunctionPointerSuggestion::CastRef { span, fn_name, sig: *sig } + FunctionPointerSuggestion::CastRef { span, fn_name, sig } } (false, false) => { diag.subdiagnostic(FnItemsAreDistinct); - FunctionPointerSuggestion::Cast { span, fn_name, sig: *sig } + FunctionPointerSuggestion::Cast { span, fn_name, sig } } }; diag.subdiagnostic(sugg); @@ -449,10 +450,10 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { diag.subdiagnostic(sug); } - (ty::FnDef(did, args), ty::FnPtr(sig)) => { + (ty::FnDef(did, args), ty::FnPtr(sig_tys, hdr)) => { let expected_sig = &(self.normalize_fn_sig)(self.tcx.fn_sig(*did).instantiate(self.tcx, args)); - let found_sig = &(self.normalize_fn_sig)(*sig); + let found_sig = &(self.normalize_fn_sig)(sig_tys.with(*hdr)); if !self.same_type_modulo_infer(*found_sig, *expected_sig) { return; diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs index 1cee82f04ea..a5f9a22ad2b 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs @@ -375,7 +375,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { let impl_candidates = self.find_similar_impl_candidates(leaf_trait_predicate); suggested = if let &[cand] = &impl_candidates[..] { let cand = cand.trait_ref; - if let (ty::FnPtr(_), ty::FnDef(..)) = + if let (ty::FnPtr(..), ty::FnDef(..)) = (cand.self_ty().kind(), main_trait_ref.self_ty().skip_binder().kind()) { err.span_suggestion( @@ -793,8 +793,8 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { // is unimplemented is because async closures don't implement `Fn`/`FnMut` // if they have captures. if let Some(by_ref_captures) = by_ref_captures - && let ty::FnPtr(sig) = by_ref_captures.kind() - && !sig.skip_binder().output().is_unit() + && let ty::FnPtr(sig_tys, _) = by_ref_captures.kind() + && !sig_tys.skip_binder().output().is_unit() { let mut err = self.dcx().create_err(AsyncClosureNotFn { span: self.tcx.def_span(closure_def_id), @@ -1061,7 +1061,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { "`{ty}` is forbidden as the type of a const generic parameter", ) } - ty::FnPtr(_) => { + ty::FnPtr(..) => { struct_span_code_err!( self.dcx(), span, @@ -1844,10 +1844,10 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { if let &[cand] = &candidates[..] { let (desc, mention_castable) = match (cand.self_ty().kind(), trait_ref.self_ty().skip_binder().kind()) { - (ty::FnPtr(_), ty::FnDef(..)) => { + (ty::FnPtr(..), ty::FnDef(..)) => { (" implemented for fn pointer `", ", cast using `as`") } - (ty::FnPtr(_), _) => (" implemented for fn pointer `", ""), + (ty::FnPtr(..), _) => (" implemented for fn pointer `", ""), _ => (" implemented for `", ""), }; err.highlighted_help(vec![ diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index 0d15ef55e24..39c5dbebbf7 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -1077,10 +1077,10 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { let Some((def_id_or_name, output, inputs)) = (self.autoderef_steps)(found).into_iter().find_map(|(found, _)| { match *found.kind() { - ty::FnPtr(fn_sig) => Some(( + ty::FnPtr(sig_tys, _) => Some(( DefIdOrName::Name("function pointer"), - fn_sig.output(), - fn_sig.inputs(), + sig_tys.output(), + sig_tys.inputs(), )), ty::FnDef(def_id, _) => { let fn_sig = found.fn_sig(self.tcx); @@ -1977,20 +1977,22 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { let ObligationCauseCode::FunctionArg { arg_hir_id, .. } = cause else { return; }; - let ty::FnPtr(expected) = expected.kind() else { + let ty::FnPtr(sig_tys, hdr) = expected.kind() else { return; }; - let ty::FnPtr(found) = found.kind() else { + let expected = sig_tys.with(*hdr); + let ty::FnPtr(sig_tys, hdr) = found.kind() else { return; }; + let found = sig_tys.with(*hdr); let Node::Expr(arg) = self.tcx.hir_node(*arg_hir_id) else { return; }; let hir::ExprKind::Path(path) = arg.kind else { return; }; - let expected_inputs = self.tcx.instantiate_bound_regions_with_erased(*expected).inputs(); - let found_inputs = self.tcx.instantiate_bound_regions_with_erased(*found).inputs(); + let expected_inputs = self.tcx.instantiate_bound_regions_with_erased(expected).inputs(); + let found_inputs = self.tcx.instantiate_bound_regions_with_erased(found).inputs(); let both_tys = expected_inputs.iter().copied().zip(found_inputs.iter().copied()); let arg_expr = |infcx: &InferCtxt<'tcx>, name, expected: Ty<'tcx>, found: Ty<'tcx>| { @@ -4790,13 +4792,13 @@ fn hint_missing_borrow<'tcx>( } let found_args = match found.kind() { - ty::FnPtr(f) => infcx.enter_forall(*f, |f| f.inputs().iter()), + ty::FnPtr(sig_tys, _) => infcx.enter_forall(*sig_tys, |sig_tys| sig_tys.inputs().iter()), kind => { span_bug!(span, "found was converted to a FnPtr above but is now {:?}", kind) } }; let expected_args = match expected.kind() { - ty::FnPtr(f) => infcx.enter_forall(*f, |f| f.inputs().iter()), + ty::FnPtr(sig_tys, _) => infcx.enter_forall(*sig_tys, |sig_tys| sig_tys.inputs().iter()), kind => { span_bug!(span, "expected was converted to a FnPtr above but is now {:?}", kind) } diff --git a/compiler/rustc_trait_selection/src/traits/project.rs b/compiler/rustc_trait_selection/src/traits/project.rs index 4b62a5c59b2..d74fafa4817 100644 --- a/compiler/rustc_trait_selection/src/traits/project.rs +++ b/compiler/rustc_trait_selection/src/traits/project.rs @@ -1636,7 +1636,7 @@ fn confirm_fn_pointer_candidate<'cx, 'tcx>( .generics_of(def_id) .host_effect_index .map_or(tcx.consts.true_, |idx| args.const_at(idx)), - ty::FnPtr(_) => tcx.consts.true_, + ty::FnPtr(..) => tcx.consts.true_, _ => unreachable!("only expected FnPtr or FnDef in `confirm_fn_pointer_candidate`"), }; diff --git a/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs b/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs index d3a1ed52d2e..7d30e652449 100644 --- a/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs +++ b/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs @@ -33,7 +33,7 @@ pub fn trivial_dropck_outlives<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> bool { | ty::Float(_) | ty::Never | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Char | ty::CoroutineWitness(..) | ty::RawPtr(_, _) @@ -224,7 +224,7 @@ pub fn dtorck_constraint_for_ty_inner<'tcx>( | ty::RawPtr(..) | ty::Ref(..) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::CoroutineWitness(..) => { // these types never have a destructor } diff --git a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs index 9de62031311..cb8deeaedb6 100644 --- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs +++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs @@ -468,8 +468,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { candidates.vec.push(AsyncClosureCandidate); } // Provide an impl, but only for suitable `fn` pointers. - ty::FnPtr(sig) => { - if sig.is_fn_trait_compatible() { + ty::FnPtr(sig_tys, hdr) => { + if sig_tys.with(hdr).is_fn_trait_compatible() { candidates.vec.push(AsyncClosureCandidate); } } @@ -535,8 +535,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { candidates.ambiguous = true; // Could wind up being a fn() type. } // Provide an impl, but only for suitable `fn` pointers. - ty::FnPtr(sig) => { - if sig.is_fn_trait_compatible() { + ty::FnPtr(sig_tys, hdr) => { + if sig_tys.with(hdr).is_fn_trait_compatible() { candidates .vec .push(FnPointerCandidate { fn_host_effect: self.tcx().consts.true_ }); @@ -819,7 +819,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { | ty::RawPtr(_, _) | ty::Ref(..) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Closure(..) | ty::CoroutineClosure(..) | ty::Coroutine(..) @@ -1207,7 +1207,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { | ty::RawPtr(_, _) | ty::Ref(..) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Never | ty::Foreign(_) | ty::Array(..) @@ -1290,7 +1290,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { | ty::Ref(_, _, _) | ty::FnDef(_, _) | ty::Pat(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::Closure(..) | ty::CoroutineClosure(..) @@ -1339,7 +1339,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let self_ty = self.infcx.resolve_vars_if_possible(obligation.self_ty()); match self_ty.skip_binder().kind() { - ty::FnPtr(_) => candidates.vec.push(BuiltinCandidate { has_nested: false }), + ty::FnPtr(..) => candidates.vec.push(BuiltinCandidate { has_nested: false }), ty::Bool | ty::Char | ty::Int(_) diff --git a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs index ddd8b970cc8..0d7ceca4301 100644 --- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs +++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs @@ -1398,7 +1398,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { | ty::RawPtr(_, _) | ty::Ref(..) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Never | ty::Foreign(_) => {} diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 1d9a90f0300..cfc0fa4e3a8 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -2114,7 +2114,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> { | ty::Bool | ty::Float(_) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::RawPtr(..) | ty::Char | ty::Ref(..) @@ -2171,7 +2171,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> { use self::BuiltinImplConditions::{Ambiguous, None, Where}; match *self_ty.kind() { - ty::FnDef(..) | ty::FnPtr(_) | ty::Error(_) => Where(ty::Binder::dummy(Vec::new())), + ty::FnDef(..) | ty::FnPtr(..) | ty::Error(_) => Where(ty::Binder::dummy(Vec::new())), ty::Uint(_) | ty::Int(_) @@ -2333,7 +2333,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> { | ty::Bool | ty::Float(_) | ty::FnDef(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Error(_) | ty::Infer(ty::IntVar(_) | ty::FloatVar(_)) | ty::Never diff --git a/compiler/rustc_trait_selection/src/traits/wf.rs b/compiler/rustc_trait_selection/src/traits/wf.rs index 7e5fe7e3c94..a3982c3d987 100644 --- a/compiler/rustc_trait_selection/src/traits/wf.rs +++ b/compiler/rustc_trait_selection/src/traits/wf.rs @@ -812,7 +812,7 @@ impl<'a, 'tcx> TypeVisitor<TyCtxt<'tcx>> for WfPredicates<'a, 'tcx> { return upvars.visit_with(self); } - ty::FnPtr(_) => { + ty::FnPtr(..) => { // Let the visitor iterate into the argument/return // types appearing in the fn signature. } diff --git a/compiler/rustc_ty_utils/src/instance.rs b/compiler/rustc_ty_utils/src/instance.rs index 43e49138709..c7ed6e6110f 100644 --- a/compiler/rustc_ty_utils/src/instance.rs +++ b/compiler/rustc_ty_utils/src/instance.rs @@ -248,7 +248,7 @@ fn resolve_associated_item<'tcx>( if name == sym::clone { let self_ty = trait_ref.self_ty(); match self_ty.kind() { - ty::FnDef(..) | ty::FnPtr(_) => (), + ty::FnDef(..) | ty::FnPtr(..) => (), ty::Coroutine(..) | ty::CoroutineWitness(..) | ty::Closure(..) diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index 3ef10f4e43c..53b198a2da9 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -184,7 +184,7 @@ fn layout_of_uncached<'tcx>( ty::Int(ity) => scalar(Int(Integer::from_int_ty(dl, ity), true)), ty::Uint(ity) => scalar(Int(Integer::from_uint_ty(dl, ity), false)), ty::Float(fty) => scalar(Float(Float::from_float_ty(fty))), - ty::FnPtr(_) => { + ty::FnPtr(..) => { let mut ptr = scalar_unit(Pointer(dl.instruction_address_space)); ptr.valid_range_mut().start = 1; tcx.mk_layout(LayoutS::scalar(cx, ptr)) diff --git a/compiler/rustc_type_ir/src/binder.rs b/compiler/rustc_type_ir/src/binder.rs index 84ff5cebba1..652201f11e3 100644 --- a/compiler/rustc_type_ir/src/binder.rs +++ b/compiler/rustc_type_ir/src/binder.rs @@ -86,6 +86,7 @@ macro_rules! impl_binder_encode_decode { #[cfg(feature = "nightly")] impl_binder_encode_decode! { ty::FnSig<I>, + ty::FnSigTys<I>, ty::TraitPredicate<I>, ty::ExistentialPredicate<I>, ty::TraitRef<I>, diff --git a/compiler/rustc_type_ir/src/fast_reject.rs b/compiler/rustc_type_ir/src/fast_reject.rs index 456accd1a1b..718e13ffe94 100644 --- a/compiler/rustc_type_ir/src/fast_reject.rs +++ b/compiler/rustc_type_ir/src/fast_reject.rs @@ -135,7 +135,9 @@ pub fn simplify_type<I: Interner>( ty::CoroutineWitness(def_id, _) => Some(SimplifiedType::CoroutineWitness(def_id)), ty::Never => Some(SimplifiedType::Never), ty::Tuple(tys) => Some(SimplifiedType::Tuple(tys.len())), - ty::FnPtr(f) => Some(SimplifiedType::Function(f.skip_binder().inputs().len())), + ty::FnPtr(sig_tys, _hdr) => { + Some(SimplifiedType::Function(sig_tys.skip_binder().inputs().len())) + } ty::Placeholder(..) => Some(SimplifiedType::Placeholder), ty::Param(_) => match treat_params { TreatParams::ForLookup => Some(SimplifiedType::Placeholder), @@ -307,17 +309,14 @@ impl<I: Interner> DeepRejectCtxt<I> { obl_preds.principal_def_id() == impl_preds.principal_def_id() ) } - ty::FnPtr(obl_sig) => match k { - ty::FnPtr(impl_sig) => { - let ty::FnSig { inputs_and_output, c_variadic, safety, abi } = - obl_sig.skip_binder(); - let impl_sig = impl_sig.skip_binder(); + ty::FnPtr(obl_sig_tys, obl_hdr) => match k { + ty::FnPtr(impl_sig_tys, impl_hdr) => { + let obl_sig_tys = obl_sig_tys.skip_binder().0; + let impl_sig_tys = impl_sig_tys.skip_binder().0; - abi == impl_sig.abi - && c_variadic == impl_sig.c_variadic - && safety == impl_sig.safety - && inputs_and_output.len() == impl_sig.inputs_and_output.len() - && iter::zip(inputs_and_output.iter(), impl_sig.inputs_and_output.iter()) + obl_hdr == impl_hdr + && obl_sig_tys.len() == impl_sig_tys.len() + && iter::zip(obl_sig_tys.iter(), impl_sig_tys.iter()) .all(|(obl, imp)| self.types_may_unify(obl, imp)) } _ => false, diff --git a/compiler/rustc_type_ir/src/inherent.rs b/compiler/rustc_type_ir/src/inherent.rs index 6ca2fed0380..958360faede 100644 --- a/compiler/rustc_type_ir/src/inherent.rs +++ b/compiler/rustc_type_ir/src/inherent.rs @@ -133,12 +133,12 @@ pub trait Ty<I: Interner<Ty = Self>>: } fn is_fn_ptr(self) -> bool { - matches!(self.kind(), ty::FnPtr(_)) + matches!(self.kind(), ty::FnPtr(..)) } fn fn_sig(self, interner: I) -> ty::Binder<I, ty::FnSig<I>> { match self.kind() { - ty::FnPtr(sig) => sig, + ty::FnPtr(sig_tys, hdr) => sig_tys.with(hdr), ty::FnDef(def_id, args) => interner.fn_sig(def_id).instantiate(interner, args), ty::Error(_) => { // ignore errors (#54954) @@ -181,7 +181,7 @@ pub trait Ty<I: Interner<Ty = Self>>: | ty::RawPtr(_, _) | ty::Ref(_, _, _) | ty::FnDef(_, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::Closure(_, _) | ty::CoroutineClosure(_, _) diff --git a/compiler/rustc_type_ir/src/outlives.rs b/compiler/rustc_type_ir/src/outlives.rs index 2f26a439183..bfcea6a81d3 100644 --- a/compiler/rustc_type_ir/src/outlives.rs +++ b/compiler/rustc_type_ir/src/outlives.rs @@ -186,7 +186,7 @@ impl<I: Interner> TypeVisitor<I> for OutlivesCollector<'_, I> { | ty::Slice(_) | ty::RawPtr(_, _) | ty::Ref(_, _, _) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Dynamic(_, _, _) | ty::Tuple(_) => { ty.super_visit_with(self); diff --git a/compiler/rustc_type_ir/src/relate.rs b/compiler/rustc_type_ir/src/relate.rs index 9fd3534d1fa..578436b622a 100644 --- a/compiler/rustc_type_ir/src/relate.rs +++ b/compiler/rustc_type_ir/src/relate.rs @@ -524,8 +524,8 @@ pub fn structurally_relate_tys<I: Interner, R: TypeRelation<I>>( Ok(Ty::new_fn_def(cx, a_def_id, args)) } - (ty::FnPtr(a_fty), ty::FnPtr(b_fty)) => { - let fty = relation.relate(a_fty, b_fty)?; + (ty::FnPtr(a_sig_tys, a_hdr), ty::FnPtr(b_sig_tys, b_hdr)) => { + let fty = relation.relate(a_sig_tys.with(a_hdr), b_sig_tys.with(b_hdr))?; Ok(Ty::new_fn_ptr(cx, fty)) } diff --git a/compiler/rustc_type_ir/src/ty_kind.rs b/compiler/rustc_type_ir/src/ty_kind.rs index 828f90212c4..8640a601980 100644 --- a/compiler/rustc_type_ir/src/ty_kind.rs +++ b/compiler/rustc_type_ir/src/ty_kind.rs @@ -143,7 +143,12 @@ pub enum TyKind<I: Interner> { /// fn foo() -> i32 { 1 } /// let bar: fn() -> i32 = foo; /// ``` - FnPtr(ty::Binder<I, FnSig<I>>), + /// + /// These two fields are equivalent to a `ty::Binder<I, FnSig<I>>`. But by + /// splitting that into two pieces, we get a more compact data layout that + /// reduces the size of `TyKind` by 8 bytes. It is a very hot type, so it's + /// worth the mild inconvenience. + FnPtr(ty::Binder<I, FnSigTys<I>>, FnHeader<I>), /// A trait object. Written as `dyn for<'b> Trait<'b, Assoc = u32> + Send + 'a`. Dynamic(I::BoundExistentialPredicates, I::Region, DynKind), @@ -288,7 +293,7 @@ impl<I: Interner> fmt::Debug for TyKind<I> { RawPtr(ty, mutbl) => write!(f, "*{} {:?}", mutbl.ptr_str(), ty), Ref(r, t, m) => write!(f, "&{:?} {}{:?}", r, m.prefix_str(), t), FnDef(d, s) => f.debug_tuple("FnDef").field(d).field(&s).finish(), - FnPtr(s) => write!(f, "{s:?}"), + FnPtr(sig_tys, hdr) => write!(f, "{:?}", sig_tys.with(*hdr)), Dynamic(p, r, repr) => match repr { DynKind::Dyn => write!(f, "dyn {p:?} + {r:?}"), DynKind::DynStar => write!(f, "dyn* {p:?} + {r:?}"), @@ -918,6 +923,13 @@ impl<I: Interner> ty::Binder<I, FnSig<I>> { pub fn is_fn_trait_compatible(&self) -> bool { self.skip_binder().is_fn_trait_compatible() } + + // Used to split a single value into the two fields in `TyKind::FnPtr`. + pub fn split(self) -> (ty::Binder<I, FnSigTys<I>>, FnHeader<I>) { + let hdr = + FnHeader { c_variadic: self.c_variadic(), safety: self.safety(), abi: self.abi() }; + (self.map_bound(|sig| FnSigTys(sig.inputs_and_output)), hdr) + } } impl<I: Interner> fmt::Debug for FnSig<I> { @@ -954,3 +966,60 @@ impl<I: Interner> fmt::Debug for FnSig<I> { } } } + +// This is just a `FnSig` without the `FnHeader` fields. +#[derive_where(Clone, Copy, Debug, PartialEq, Eq, Hash; I: Interner)] +#[cfg_attr(feature = "nightly", derive(TyEncodable, TyDecodable, HashStable_NoContext))] +#[derive(TypeVisitable_Generic, TypeFoldable_Generic, Lift_Generic)] +pub struct FnSigTys<I: Interner>(pub I::Tys); + +impl<I: Interner> FnSigTys<I> { + pub fn inputs(self) -> I::FnInputTys { + self.0.inputs() + } + + pub fn output(self) -> I::Ty { + self.0.output() + } +} + +impl<I: Interner> ty::Binder<I, FnSigTys<I>> { + // Used to combine the two fields in `TyKind::FnPtr` into a single value. + pub fn with(self, hdr: FnHeader<I>) -> ty::Binder<I, FnSig<I>> { + self.map_bound(|sig_tys| FnSig { + inputs_and_output: sig_tys.0, + c_variadic: hdr.c_variadic, + safety: hdr.safety, + abi: hdr.abi, + }) + } + + #[inline] + pub fn inputs(self) -> ty::Binder<I, I::FnInputTys> { + self.map_bound(|sig_tys| sig_tys.inputs()) + } + + #[inline] + #[track_caller] + pub fn input(self, index: usize) -> ty::Binder<I, I::Ty> { + self.map_bound(|sig_tys| sig_tys.inputs().get(index).unwrap()) + } + + pub fn inputs_and_output(self) -> ty::Binder<I, I::Tys> { + self.map_bound(|sig_tys| sig_tys.0) + } + + #[inline] + pub fn output(self) -> ty::Binder<I, I::Ty> { + self.map_bound(|sig_tys| sig_tys.output()) + } +} + +#[derive_where(Clone, Copy, Debug, PartialEq, Eq, Hash; I: Interner)] +#[cfg_attr(feature = "nightly", derive(TyEncodable, TyDecodable, HashStable_NoContext))] +#[derive(TypeVisitable_Generic, TypeFoldable_Generic, Lift_Generic)] +pub struct FnHeader<I: Interner> { + pub c_variadic: bool, + pub safety: I::Safety, + pub abi: I::Abi, +} diff --git a/compiler/rustc_type_ir/src/ty_kind/closure.rs b/compiler/rustc_type_ir/src/ty_kind/closure.rs index 81717ce4a22..9d907baeeb3 100644 --- a/compiler/rustc_type_ir/src/ty_kind/closure.rs +++ b/compiler/rustc_type_ir/src/ty_kind/closure.rs @@ -197,7 +197,7 @@ impl<I: Interner> ClosureArgs<I> { /// Extracts the signature from the closure. pub fn sig(self) -> ty::Binder<I, ty::FnSig<I>> { match self.sig_as_fn_ptr_ty().kind() { - ty::FnPtr(sig) => sig, + ty::FnPtr(sig_tys, hdr) => sig_tys.with(hdr), ty => panic!("closure_sig_as_fn_ptr_ty is not a fn-ptr: {ty:?}"), } } @@ -292,21 +292,23 @@ impl<I: Interner> CoroutineClosureArgs<I> { pub fn coroutine_closure_sig(self) -> ty::Binder<I, CoroutineClosureSignature<I>> { let interior = self.coroutine_witness_ty(); - let ty::FnPtr(sig) = self.signature_parts_ty().kind() else { panic!() }; - sig.map_bound(|sig| { - let [resume_ty, tupled_inputs_ty] = *sig.inputs().as_slice() else { + let ty::FnPtr(sig_tys, hdr) = self.signature_parts_ty().kind() else { panic!() }; + sig_tys.map_bound(|sig_tys| { + let [resume_ty, tupled_inputs_ty] = *sig_tys.inputs().as_slice() else { panic!(); }; - let [yield_ty, return_ty] = *sig.output().tuple_fields().as_slice() else { panic!() }; + let [yield_ty, return_ty] = *sig_tys.output().tuple_fields().as_slice() else { + panic!() + }; CoroutineClosureSignature { interior, tupled_inputs_ty, resume_ty, yield_ty, return_ty, - c_variadic: sig.c_variadic, - safety: sig.safety, - abi: sig.abi, + c_variadic: hdr.c_variadic, + safety: hdr.safety, + abi: hdr.abi, } }) } @@ -321,7 +323,7 @@ impl<I: Interner> CoroutineClosureArgs<I> { pub fn has_self_borrows(&self) -> bool { match self.coroutine_captures_by_ref_ty().kind() { - ty::FnPtr(sig) => sig + ty::FnPtr(sig_tys, _) => sig_tys .skip_binder() .visit_with(&mut HasRegionsBoundAt { binder: ty::INNERMOST }) .is_break(), @@ -460,11 +462,11 @@ impl<I: Interner> CoroutineClosureSignature<I> { ) -> I::Ty { match kind { ty::ClosureKind::Fn | ty::ClosureKind::FnMut => { - let ty::FnPtr(sig) = coroutine_captures_by_ref_ty.kind() else { + let ty::FnPtr(sig_tys, _) = coroutine_captures_by_ref_ty.kind() else { panic!(); }; let coroutine_captures_by_ref_ty = - sig.output().skip_binder().fold_with(&mut FoldEscapingRegions { + sig_tys.output().skip_binder().fold_with(&mut FoldEscapingRegions { interner: cx, region: env_region, debruijn: ty::INNERMOST, diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index cffadc7c10a..53757349a9b 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -2069,7 +2069,7 @@ pub(crate) fn clean_middle_ty<'tcx>( Some(ContainerTy::Ref(r)), )), }, - ty::FnDef(..) | ty::FnPtr(_) => { + ty::FnDef(..) | ty::FnPtr(..) => { // FIXME: should we merge the outer and inner binders somehow? let sig = bound_ty.skip_binder().fn_sig(cx.tcx); let decl = clean_poly_fn_sig(cx, None, sig); diff --git a/src/librustdoc/passes/collect_intra_doc_links.rs b/src/librustdoc/passes/collect_intra_doc_links.rs index 9c7eee4040b..5b96529fed7 100644 --- a/src/librustdoc/passes/collect_intra_doc_links.rs +++ b/src/librustdoc/passes/collect_intra_doc_links.rs @@ -495,7 +495,7 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> { ty::RawPtr(_, _) => Res::Primitive(RawPointer), ty::Ref(..) => Res::Primitive(Reference), ty::FnDef(..) => panic!("type alias to a function definition"), - ty::FnPtr(_) => Res::Primitive(Fn), + ty::FnPtr(..) => Res::Primitive(Fn), ty::Never => Res::Primitive(Never), ty::Adt(ty::AdtDef(Interned(&ty::AdtDefData { did, .. }, _)), _) | ty::Foreign(did) => { Res::from_def_id(self.cx.tcx, did) diff --git a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast.rs b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast.rs index f263bec1576..dbe03e4ae80 100644 --- a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast.rs +++ b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast.rs @@ -15,7 +15,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, } match cast_from.kind() { - ty::FnDef(..) | ty::FnPtr(_) => { + ty::FnDef(..) | ty::FnPtr(..) => { let mut applicability = Applicability::MaybeIncorrect; let from_snippet = snippet_with_applicability(cx, cast_expr.span, "x", &mut applicability); let to_nbits = utils::int_ty_to_nbits(cast_to, cx.tcx); diff --git a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_any.rs b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_any.rs index 75de53f73ee..5dc6df1e907 100644 --- a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_any.rs +++ b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_any.rs @@ -14,7 +14,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, _ => { /* continue to checks */ }, } - if let ty::FnDef(..) | ty::FnPtr(_) = cast_from.kind() { + if let ty::FnDef(..) | ty::FnPtr(..) = cast_from.kind() { let mut applicability = Applicability::MaybeIncorrect; let from_snippet = snippet_with_applicability(cx, cast_expr.span, "..", &mut applicability); diff --git a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_with_truncation.rs b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_with_truncation.rs index 0e11bcfb8ec..dfbae1618ac 100644 --- a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_with_truncation.rs +++ b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_with_truncation.rs @@ -14,7 +14,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, _ => return, } match cast_from.kind() { - ty::FnDef(..) | ty::FnPtr(_) => { + ty::FnDef(..) | ty::FnPtr(..) => { let mut applicability = Applicability::MaybeIncorrect; let from_snippet = snippet_with_applicability(cx, cast_expr.span, "x", &mut applicability); diff --git a/src/tools/clippy/clippy_lints/src/default_numeric_fallback.rs b/src/tools/clippy/clippy_lints/src/default_numeric_fallback.rs index a74b3a8c836..05c3cd3c814 100644 --- a/src/tools/clippy/clippy_lints/src/default_numeric_fallback.rs +++ b/src/tools/clippy/clippy_lints/src/default_numeric_fallback.rs @@ -236,7 +236,7 @@ fn fn_sig_opt<'tcx>(cx: &LateContext<'tcx>, hir_id: HirId) -> Option<PolyFnSig<' // We can't use `Ty::fn_sig` because it automatically performs args, this may result in FNs. match node_ty.kind() { ty::FnDef(def_id, _) => Some(cx.tcx.fn_sig(*def_id).instantiate_identity()), - ty::FnPtr(fn_sig) => Some(*fn_sig), + ty::FnPtr(sig_tys, hdr) => Some(sig_tys.with(*hdr)), _ => None, } } diff --git a/src/tools/clippy/clippy_lints/src/dereference.rs b/src/tools/clippy/clippy_lints/src/dereference.rs index d0cb2488468..0e55d3db469 100644 --- a/src/tools/clippy/clippy_lints/src/dereference.rs +++ b/src/tools/clippy/clippy_lints/src/dereference.rs @@ -872,7 +872,7 @@ impl TyCoercionStability { | ty::Pat(..) | ty::Float(_) | ty::RawPtr(..) - | ty::FnPtr(_) + | ty::FnPtr(..) | ty::Str | ty::Slice(..) | ty::Adt(..) diff --git a/src/tools/clippy/clippy_lints/src/eta_reduction.rs b/src/tools/clippy/clippy_lints/src/eta_reduction.rs index 5a7226d590c..a7e831fdc42 100644 --- a/src/tools/clippy/clippy_lints/src/eta_reduction.rs +++ b/src/tools/clippy/clippy_lints/src/eta_reduction.rs @@ -158,7 +158,7 @@ fn check_clousure<'tcx>(cx: &LateContext<'tcx>, outer_receiver: Option<&Expr<'tc cx.tcx.fn_sig(def).skip_binder().skip_binder() }, - ty::FnPtr(sig) => sig.skip_binder(), + ty::FnPtr(sig_tys, hdr) => sig_tys.with(*hdr).skip_binder(), ty::Closure(_, subs) => cx .tcx .signature_unclosure(subs.as_closure().sig(), Safety::Safe) diff --git a/src/tools/clippy/clippy_lints/src/methods/map_flatten.rs b/src/tools/clippy/clippy_lints/src/methods/map_flatten.rs index def8be2ef73..22a03825194 100644 --- a/src/tools/clippy/clippy_lints/src/methods/map_flatten.rs +++ b/src/tools/clippy/clippy_lints/src/methods/map_flatten.rs @@ -58,7 +58,7 @@ fn try_get_caller_ty_name_and_method_name( fn is_map_to_option(cx: &LateContext<'_>, map_arg: &Expr<'_>) -> bool { let map_closure_ty = cx.typeck_results().expr_ty(map_arg); match map_closure_ty.kind() { - ty::Closure(_, _) | ty::FnDef(_, _) | ty::FnPtr(_) => { + ty::Closure(_, _) | ty::FnDef(_, _) | ty::FnPtr(..) => { let map_closure_sig = match map_closure_ty.kind() { ty::Closure(_, args) => args.as_closure().sig(), _ => map_closure_ty.fn_sig(cx.tcx), diff --git a/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs b/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs index 6964d8c8dbb..0b3769ecb7c 100644 --- a/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs +++ b/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs @@ -166,7 +166,7 @@ impl<'a, 'tcx> Visitor<'tcx> for DivergenceVisitor<'a, 'tcx> { ExprKind::Call(func, _) => { let typ = self.cx.typeck_results().expr_ty(func); match typ.kind() { - ty::FnDef(..) | ty::FnPtr(_) => { + ty::FnDef(..) | ty::FnPtr(..) => { let sig = typ.fn_sig(self.cx.tcx); if self.cx.tcx.instantiate_bound_regions_with_erased(sig).output().kind() == &ty::Never { self.report_diverging_sub_expr(e); diff --git a/src/tools/clippy/clippy_lints/src/multiple_unsafe_ops_per_block.rs b/src/tools/clippy/clippy_lints/src/multiple_unsafe_ops_per_block.rs index da74a7c7145..0bde0da3cd8 100644 --- a/src/tools/clippy/clippy_lints/src/multiple_unsafe_ops_per_block.rs +++ b/src/tools/clippy/clippy_lints/src/multiple_unsafe_ops_per_block.rs @@ -130,7 +130,7 @@ fn collect_unsafe_exprs<'tcx>( ExprKind::Call(path_expr, _) => { let sig = match *cx.typeck_results().expr_ty(path_expr).kind() { ty::FnDef(id, _) => cx.tcx.fn_sig(id).skip_binder(), - ty::FnPtr(sig) => sig, + ty::FnPtr(sig_tys, hdr) => sig_tys.with(hdr), _ => return Continue(Descend::Yes), }; if sig.safety() == Safety::Unsafe { diff --git a/src/tools/clippy/clippy_lints/src/mut_reference.rs b/src/tools/clippy/clippy_lints/src/mut_reference.rs index 0a3b769c3e6..3c0f06f66d1 100644 --- a/src/tools/clippy/clippy_lints/src/mut_reference.rs +++ b/src/tools/clippy/clippy_lints/src/mut_reference.rs @@ -79,7 +79,7 @@ fn check_arguments<'tcx>( fn_kind: &str, ) { match type_definition.kind() { - ty::FnDef(..) | ty::FnPtr(_) => { + ty::FnDef(..) | ty::FnPtr(..) => { let parameters = type_definition.fn_sig(cx.tcx).skip_binder().inputs(); for (argument, parameter) in iter::zip(arguments, parameters) { match parameter.kind() { diff --git a/src/tools/clippy/clippy_utils/src/ty.rs b/src/tools/clippy/clippy_utils/src/ty.rs index bd48990aea9..2f6faba073e 100644 --- a/src/tools/clippy/clippy_utils/src/ty.rs +++ b/src/tools/clippy/clippy_utils/src/ty.rs @@ -541,7 +541,7 @@ pub fn peel_mid_ty_refs_is_mutable(ty: Ty<'_>) -> (Ty<'_>, usize, Mutability) { /// Returns `true` if the given type is an `unsafe` function. pub fn type_is_unsafe_function<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool { match ty.kind() { - ty::FnDef(..) | ty::FnPtr(_) => ty.fn_sig(cx.tcx).safety() == Safety::Unsafe, + ty::FnDef(..) | ty::FnPtr(..) => ty.fn_sig(cx.tcx).safety() == Safety::Unsafe, _ => false, } } @@ -721,7 +721,7 @@ pub fn ty_sig<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<ExprFnSig<'t cx.tcx.item_super_predicates(def_id).iter_instantiated(cx.tcx, args), cx.tcx.opt_parent(def_id), ), - ty::FnPtr(sig) => Some(ExprFnSig::Sig(sig, None)), + ty::FnPtr(sig_tys, hdr) => Some(ExprFnSig::Sig(sig_tys.with(hdr), None)), ty::Dynamic(bounds, _, _) => { let lang_items = cx.tcx.lang_items(); match bounds.principal() { diff --git a/src/tools/clippy/clippy_utils/src/visitors.rs b/src/tools/clippy/clippy_utils/src/visitors.rs index 2a5d3536ff6..e5b6d3965e9 100644 --- a/src/tools/clippy/clippy_utils/src/visitors.rs +++ b/src/tools/clippy/clippy_utils/src/visitors.rs @@ -441,7 +441,7 @@ pub fn is_expr_unsafe<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) -> bool { ty::FnDef(id, _) if self.cx.tcx.fn_sig(id).skip_binder().safety() == Safety::Unsafe => { self.is_unsafe = true; }, - ty::FnPtr(sig) if sig.safety() == Safety::Unsafe => self.is_unsafe = true, + ty::FnPtr(_, hdr) if hdr.safety == Safety::Unsafe => self.is_unsafe = true, _ => walk_expr(self, e), }, ExprKind::Path(ref p) |