diff options
Diffstat (limited to 'compiler/rustc_const_eval/src/const_eval/machine.rs')
| -rw-r--r-- | compiler/rustc_const_eval/src/const_eval/machine.rs | 68 |
1 files changed, 34 insertions, 34 deletions
diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs index 6d74998b7d8..4aec74595bc 100644 --- a/compiler/rustc_const_eval/src/const_eval/machine.rs +++ b/compiler/rustc_const_eval/src/const_eval/machine.rs @@ -24,8 +24,8 @@ use crate::fluent_generated as fluent; use crate::interpret::{ self, AllocId, AllocRange, ConstAllocation, CtfeProvenance, FnArg, Frame, GlobalAlloc, ImmTy, InterpCx, InterpResult, MPlaceTy, OpTy, Pointer, PointerArithmetic, RangeSet, Scalar, - StackPopCleanup, compile_time_machine, err_ub, throw_exhaust, throw_inval, throw_ub_custom, - throw_unsup, throw_unsup_format, + StackPopCleanup, compile_time_machine, interp_ok, throw_exhaust, throw_inval, throw_ub, + throw_ub_custom, throw_unsup, throw_unsup_format, }; /// When hitting this many interpreted terminators we emit a deny by default lint @@ -247,7 +247,7 @@ impl<'tcx> CompileTimeInterpCx<'tcx> { let msg = Symbol::intern(self.read_str(&msg_place)?); let span = self.find_closest_untracked_caller_location(); let (file, line, col) = self.location_triple_for_span(span); - return Err(ConstEvalErrKind::Panic { msg, file, line, col }.into()); + return Err(ConstEvalErrKind::Panic { msg, file, line, col }).into(); } else if self.tcx.is_lang_item(def_id, LangItem::PanicFmt) { // For panic_fmt, call const_panic_fmt instead. let const_def_id = self.tcx.require_lang_item(LangItem::ConstPanicFmt, None); @@ -259,16 +259,16 @@ impl<'tcx> CompileTimeInterpCx<'tcx> { self.cur_span(), ); - return Ok(Some(new_instance)); + return interp_ok(Some(new_instance)); } else if self.tcx.is_lang_item(def_id, LangItem::AlignOffset) { let args = self.copy_fn_args(args); // For align_offset, we replace the function call if the pointer has no address. match self.align_offset(instance, &args, dest, ret)? { - ControlFlow::Continue(()) => return Ok(Some(instance)), - ControlFlow::Break(()) => return Ok(None), + ControlFlow::Continue(()) => return interp_ok(Some(instance)), + ControlFlow::Break(()) => return interp_ok(None), } } - Ok(Some(instance)) + interp_ok(Some(instance)) } /// `align_offset(ptr, target_align)` needs special handling in const eval, because the pointer @@ -323,25 +323,25 @@ impl<'tcx> CompileTimeInterpCx<'tcx> { dest, StackPopCleanup::Goto { ret, unwind: mir::UnwindAction::Unreachable }, )?; - Ok(ControlFlow::Break(())) + interp_ok(ControlFlow::Break(())) } else { // Not alignable in const, return `usize::MAX`. let usize_max = Scalar::from_target_usize(self.target_usize_max(), self); self.write_scalar(usize_max, dest)?; self.return_to_block(ret)?; - Ok(ControlFlow::Break(())) + interp_ok(ControlFlow::Break(())) } } Err(_addr) => { // The pointer has an address, continue with function call. - Ok(ControlFlow::Continue(())) + interp_ok(ControlFlow::Continue(())) } } } /// See documentation on the `ptr_guaranteed_cmp` intrinsic. fn guaranteed_cmp(&mut self, a: Scalar, b: Scalar) -> InterpResult<'tcx, u8> { - Ok(match (a, b) { + interp_ok(match (a, b) { // Comparisons between integers are always known. (Scalar::Int { .. }, Scalar::Int { .. }) => { if a == b { @@ -403,8 +403,8 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { instance: ty::InstanceKind<'tcx>, ) -> InterpResult<'tcx, &'tcx mir::Body<'tcx>> { match instance { - ty::InstanceKind::Item(def) => Ok(ecx.tcx.mir_for_ctfe(def)), - _ => Ok(ecx.tcx.instance_mir(instance)), + ty::InstanceKind::Item(def) => interp_ok(ecx.tcx.mir_for_ctfe(def)), + _ => interp_ok(ecx.tcx.instance_mir(instance)), } } @@ -422,7 +422,7 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { // Replace some functions. let Some(instance) = ecx.hook_special_const_fn(orig_instance, args, dest, ret)? else { // Call has already been handled. - return Ok(None); + return interp_ok(None); }; // Only check non-glue functions @@ -444,14 +444,14 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { // This is a const fn. Call it. // In case of replacement, we return the *original* instance to make backtraces work out // (and we hope this does not confuse the FnAbi checks too much). - Ok(Some((ecx.load_mir(instance.def, None)?, orig_instance))) + interp_ok(Some((ecx.load_mir(instance.def, None)?, orig_instance))) } fn panic_nounwind(ecx: &mut InterpCx<'tcx, Self>, msg: &str) -> InterpResult<'tcx> { let msg = Symbol::intern(msg); let span = ecx.find_closest_untracked_caller_location(); let (file, line, col) = ecx.location_triple_for_span(span); - Err(ConstEvalErrKind::Panic { msg, file, line, col }.into()) + Err(ConstEvalErrKind::Panic { msg, file, line, col }).into() } fn call_intrinsic( @@ -464,7 +464,7 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { ) -> InterpResult<'tcx, Option<ty::Instance<'tcx>>> { // Shared intrinsics. if ecx.eval_intrinsic(instance, args, dest, target)? { - return Ok(None); + return interp_ok(None); } let intrinsic_name = ecx.tcx.item_name(instance.def_id()); @@ -541,7 +541,7 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { "intrinsic `{intrinsic_name}` is not supported at compile-time" ); } - return Ok(Some(ty::Instance { + return interp_ok(Some(ty::Instance { def: ty::InstanceKind::Item(instance.def_id()), args: instance.args, })); @@ -550,7 +550,7 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { // Intrinsic is done, jump to next block. ecx.return_to_block(target)?; - Ok(None) + interp_ok(None) } fn assert_panic( @@ -581,7 +581,7 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { } } }; - Err(ConstEvalErrKind::AssertFailure(err).into()) + Err(ConstEvalErrKind::AssertFailure(err)).into() } fn binary_ptr_op( @@ -652,7 +652,7 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { } } - Ok(()) + interp_ok(()) } #[inline(always)] @@ -670,7 +670,7 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { if !ecx.recursion_limit.value_within_limit(ecx.stack().len() + 1) { throw_exhaust!(StackFrameLimitReached) } else { - Ok(frame) + interp_ok(frame) } } @@ -700,22 +700,22 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { if is_write { // Write access. These are never allowed, but we give a targeted error message. match alloc.mutability { - Mutability::Not => Err(err_ub!(WriteToReadOnly(alloc_id)).into()), - Mutability::Mut => Err(ConstEvalErrKind::ModifiedGlobal.into()), + Mutability::Not => throw_ub!(WriteToReadOnly(alloc_id)), + Mutability::Mut => Err(ConstEvalErrKind::ModifiedGlobal).into(), } } else { // Read access. These are usually allowed, with some exceptions. if machine.can_access_mut_global == CanAccessMutGlobal::Yes { // Machine configuration allows us read from anything (e.g., `static` initializer). - Ok(()) + interp_ok(()) } else if alloc.mutability == Mutability::Mut { // Machine configuration does not allow us to read statics (e.g., `const` // initializer). - Err(ConstEvalErrKind::ConstAccessesMutGlobal.into()) + Err(ConstEvalErrKind::ConstAccessesMutGlobal).into() } else { // Immutable global, this read is fine. assert_eq!(alloc.mutability, Mutability::Not); - Ok(()) + interp_ok(()) } } } @@ -748,9 +748,9 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { // even when there is interior mutability.) place.map_provenance(CtfeProvenance::as_shared_ref) }; - Ok(ImmTy::from_immediate(new_place.to_ref(ecx), val.layout)) + interp_ok(ImmTy::from_immediate(new_place.to_ref(ecx), val.layout)) } else { - Ok(val.clone()) + interp_ok(val.clone()) } } @@ -763,20 +763,20 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { ) -> InterpResult<'tcx> { if range.size == Size::ZERO { // Nothing to check. - return Ok(()); + return interp_ok(()); } // Reject writes through immutable pointers. if immutable { - return Err(ConstEvalErrKind::WriteThroughImmutablePointer.into()); + return Err(ConstEvalErrKind::WriteThroughImmutablePointer).into(); } // Everything else is fine. - Ok(()) + interp_ok(()) } fn before_alloc_read(ecx: &InterpCx<'tcx, Self>, alloc_id: AllocId) -> InterpResult<'tcx> { // Check if this is the currently evaluated static. if Some(alloc_id) == ecx.machine.static_root_ids.map(|(id, _)| id) { - return Err(ConstEvalErrKind::RecursiveStatic.into()); + return Err(ConstEvalErrKind::RecursiveStatic).into(); } // If this is another static, make sure we fire off the query to detect cycles. // But only do that when checks for static recursion are enabled. @@ -788,7 +788,7 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { ecx.ctfe_query(|tcx| tcx.eval_static_initializer(def_id))?; } } - Ok(()) + interp_ok(()) } fn cached_union_data_range<'e>( |