diff options
154 files changed, 1949 insertions, 1105 deletions
diff --git a/.mailmap b/.mailmap index eb82cf4de8d..7d455ebd45f 100644 --- a/.mailmap +++ b/.mailmap @@ -549,6 +549,8 @@ Timothy Maloney <tmaloney@pdx.edu> Tomas Koutsky <tomas@stepnivlk.net> Torsten Weber <TorstenWeber12@gmail.com> Torsten Weber <TorstenWeber12@gmail.com> <torstenweber12@gmail.com> +Trevor Gross <tmgross@umich.edu> <t.gross35@gmail.com> +Trevor Gross <tmgross@umich.edu> <tgross@intrepidcs.com> Trevor Spiteri <tspiteri@ieee.org> <trevor.spiteri@um.edu.mt> Tshepang Mbambo <tshepang@gmail.com> Ty Overby <ty@pre-alpha.com> diff --git a/compiler/rustc_ast/src/attr/mod.rs b/compiler/rustc_ast/src/attr/mod.rs index 19a2b3017bc..db008ea139d 100644 --- a/compiler/rustc_ast/src/attr/mod.rs +++ b/compiler/rustc_ast/src/attr/mod.rs @@ -99,6 +99,22 @@ impl Attribute { } } + pub fn path_matches(&self, name: &[Symbol]) -> bool { + match &self.kind { + AttrKind::Normal(normal) => { + normal.item.path.segments.len() == name.len() + && normal + .item + .path + .segments + .iter() + .zip(name) + .all(|(s, n)| s.args.is_none() && s.ident.name == *n) + } + AttrKind::DocComment(..) => false, + } + } + pub fn is_word(&self) -> bool { if let AttrKind::Normal(normal) = &self.kind { matches!(normal.item.args, AttrArgs::Empty) diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index 337af89b21f..b40e89e471d 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -442,8 +442,8 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { span: Span, counter: usize, ) -> RegionNameHighlight { - let mut highlight = RegionHighlightMode::new(self.infcx.tcx); - highlight.highlighting_region_vid(needle_fr, counter); + let mut highlight = RegionHighlightMode::default(); + highlight.highlighting_region_vid(self.infcx.tcx, needle_fr, counter); let type_name = self.infcx.extract_inference_diagnostics_data(ty.into(), Some(highlight)).name; @@ -804,8 +804,8 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { return None; } - let mut highlight = RegionHighlightMode::new(tcx); - highlight.highlighting_region_vid(fr, *self.next_region_name.try_borrow().unwrap()); + let mut highlight = RegionHighlightMode::default(); + highlight.highlighting_region_vid(tcx, fr, *self.next_region_name.try_borrow().unwrap()); let type_name = self.infcx.extract_inference_diagnostics_data(yield_ty.into(), Some(highlight)).name; diff --git a/compiler/rustc_builtin_macros/messages.ftl b/compiler/rustc_builtin_macros/messages.ftl index 8d8db4c13fa..207ae8ad844 100644 --- a/compiler/rustc_builtin_macros/messages.ftl +++ b/compiler/rustc_builtin_macros/messages.ftl @@ -137,6 +137,8 @@ builtin_macros_format_positional_after_named = positional arguments cannot follo .label = positional arguments must be before named arguments .named_args = named argument +builtin_macros_format_remove_raw_ident = remove the `r#` + builtin_macros_format_requires_string = requires at least a format string argument builtin_macros_format_string_invalid = invalid format string: {$desc} @@ -165,6 +167,8 @@ builtin_macros_format_unused_arg = {$named -> builtin_macros_format_unused_args = multiple unused formatting arguments .label = multiple missing formatting specifiers +builtin_macros_format_use_positional = consider using a positional formatting argument instead + builtin_macros_global_asm_clobber_abi = `clobber_abi` cannot be used with `global_asm!` builtin_macros_invalid_crate_attribute = invalid crate attribute @@ -205,8 +209,6 @@ builtin_macros_requires_cfg_pattern = builtin_macros_should_panic = functions using `#[should_panic]` must return `()` -builtin_macros_sugg = consider using a positional formatting argument instead - builtin_macros_test_arg_non_lifetime = functions used as tests can not have any non-lifetime generic parameters builtin_macros_test_args = functions used as tests can not have any arguments diff --git a/compiler/rustc_builtin_macros/src/errors.rs b/compiler/rustc_builtin_macros/src/errors.rs index fbf0395bb05..1238773d58b 100644 --- a/compiler/rustc_builtin_macros/src/errors.rs +++ b/compiler/rustc_builtin_macros/src/errors.rs @@ -539,18 +539,29 @@ pub(crate) struct InvalidFormatStringLabel { } #[derive(Subdiagnostic)] -#[multipart_suggestion( - builtin_macros_sugg, - style = "verbose", - applicability = "machine-applicable" -)] -pub(crate) struct InvalidFormatStringSuggestion { - #[suggestion_part(code = "{len}")] - pub(crate) captured: Span, - pub(crate) len: String, - #[suggestion_part(code = ", {arg}")] - pub(crate) span: Span, - pub(crate) arg: String, +pub(crate) enum InvalidFormatStringSuggestion { + #[multipart_suggestion( + builtin_macros_format_use_positional, + style = "verbose", + applicability = "machine-applicable" + )] + UsePositional { + #[suggestion_part(code = "{len}")] + captured: Span, + len: String, + #[suggestion_part(code = ", {arg}")] + span: Span, + arg: String, + }, + #[suggestion( + builtin_macros_format_remove_raw_ident, + code = "", + applicability = "machine-applicable" + )] + RemoveRawIdent { + #[primary_span] + span: Span, + }, } #[derive(Diagnostic)] diff --git a/compiler/rustc_builtin_macros/src/format.rs b/compiler/rustc_builtin_macros/src/format.rs index ede95dbf897..8397b5e4221 100644 --- a/compiler/rustc_builtin_macros/src/format.rs +++ b/compiler/rustc_builtin_macros/src/format.rs @@ -260,20 +260,29 @@ fn make_format_args( if let Some((label, span)) = err.secondary_label && is_source_literal { e.label_ = Some(errors::InvalidFormatStringLabel { span: fmt_span.from_inner(InnerSpan::new(span.start, span.end)), label } ); } - if err.should_be_replaced_with_positional_argument { - let captured_arg_span = - fmt_span.from_inner(InnerSpan::new(err.span.start, err.span.end)); - if let Ok(arg) = ecx.source_map().span_to_snippet(captured_arg_span) { - let span = match args.unnamed_args().last() { - Some(arg) => arg.expr.span, - None => fmt_span, - }; - e.sugg_ = Some(errors::InvalidFormatStringSuggestion { - captured: captured_arg_span, - len: args.unnamed_args().len().to_string(), - span: span.shrink_to_hi(), - arg, - }); + match err.suggestion { + parse::Suggestion::None => {} + parse::Suggestion::UsePositional => { + let captured_arg_span = + fmt_span.from_inner(InnerSpan::new(err.span.start, err.span.end)); + if let Ok(arg) = ecx.source_map().span_to_snippet(captured_arg_span) { + let span = match args.unnamed_args().last() { + Some(arg) => arg.expr.span, + None => fmt_span, + }; + e.sugg_ = Some(errors::InvalidFormatStringSuggestion::UsePositional { + captured: captured_arg_span, + len: args.unnamed_args().len().to_string(), + span: span.shrink_to_hi(), + arg, + }); + } + } + parse::Suggestion::RemoveRawIdent(span) => { + if is_source_literal { + let span = fmt_span.from_inner(InnerSpan::new(span.start, span.end)); + e.sugg_ = Some(errors::InvalidFormatStringSuggestion::RemoveRawIdent { span }) + } } } ecx.emit_err(e); diff --git a/compiler/rustc_codegen_cranelift/src/abi/pass_mode.rs b/compiler/rustc_codegen_cranelift/src/abi/pass_mode.rs index d847e524f8c..0d16da48067 100644 --- a/compiler/rustc_codegen_cranelift/src/abi/pass_mode.rs +++ b/compiler/rustc_codegen_cranelift/src/abi/pass_mode.rs @@ -100,11 +100,11 @@ impl<'tcx> ArgAbiExt<'tcx> for ArgAbi<'tcx, Ty<'tcx>> { } _ => unreachable!("{:?}", self.layout.abi), }, - PassMode::Cast(ref cast, pad_i32) => { + PassMode::Cast { ref cast, pad_i32 } => { assert!(!pad_i32, "padding support not yet implemented"); cast_target_to_abi_params(cast) } - PassMode::Indirect { attrs, extra_attrs: None, on_stack } => { + PassMode::Indirect { attrs, meta_attrs: None, on_stack } => { if on_stack { // Abi requires aligning struct size to pointer size let size = self.layout.size.align_to(tcx.data_layout.pointer_align.abi); @@ -117,11 +117,11 @@ impl<'tcx> ArgAbiExt<'tcx> for ArgAbi<'tcx, Ty<'tcx>> { smallvec![apply_arg_attrs_to_abi_param(AbiParam::new(pointer_ty(tcx)), attrs)] } } - PassMode::Indirect { attrs, extra_attrs: Some(extra_attrs), on_stack } => { + PassMode::Indirect { attrs, meta_attrs: Some(meta_attrs), on_stack } => { assert!(!on_stack); smallvec![ apply_arg_attrs_to_abi_param(AbiParam::new(pointer_ty(tcx)), attrs), - apply_arg_attrs_to_abi_param(AbiParam::new(pointer_ty(tcx)), extra_attrs), + apply_arg_attrs_to_abi_param(AbiParam::new(pointer_ty(tcx)), meta_attrs), ] } } @@ -148,14 +148,14 @@ impl<'tcx> ArgAbiExt<'tcx> for ArgAbi<'tcx, Ty<'tcx>> { } _ => unreachable!("{:?}", self.layout.abi), }, - PassMode::Cast(ref cast, _) => { + PassMode::Cast { ref cast, .. } => { (None, cast_target_to_abi_params(cast).into_iter().collect()) } - PassMode::Indirect { attrs: _, extra_attrs: None, on_stack } => { + PassMode::Indirect { attrs: _, meta_attrs: None, on_stack } => { assert!(!on_stack); (Some(AbiParam::special(pointer_ty(tcx), ArgumentPurpose::StructReturn)), vec![]) } - PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => { unreachable!("unsized return value") } } @@ -229,7 +229,7 @@ pub(super) fn adjust_arg_for_abi<'tcx>( let (a, b) = arg.load_scalar_pair(fx); smallvec![a, b] } - PassMode::Cast(ref cast, _) => to_casted_value(fx, arg, cast), + PassMode::Cast { ref cast, .. } => to_casted_value(fx, arg, cast), PassMode::Indirect { .. } => { if is_owned { match arg.force_stack(fx) { @@ -287,14 +287,14 @@ pub(super) fn cvalue_for_param<'tcx>( assert_eq!(block_params.len(), 2, "{:?}", block_params); Some(CValue::by_val_pair(block_params[0], block_params[1], arg_abi.layout)) } - PassMode::Cast(ref cast, _) => { + PassMode::Cast { ref cast, .. } => { Some(from_casted_value(fx, &block_params, arg_abi.layout, cast)) } - PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ } => { assert_eq!(block_params.len(), 1, "{:?}", block_params); Some(CValue::by_ref(Pointer::new(block_params[0]), arg_abi.layout)) } - PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => { assert_eq!(block_params.len(), 2, "{:?}", block_params); Some(CValue::by_ref_unsized( Pointer::new(block_params[0]), diff --git a/compiler/rustc_codegen_cranelift/src/abi/returning.rs b/compiler/rustc_codegen_cranelift/src/abi/returning.rs index 14e54d5ee38..646fb4a3cdc 100644 --- a/compiler/rustc_codegen_cranelift/src/abi/returning.rs +++ b/compiler/rustc_codegen_cranelift/src/abi/returning.rs @@ -13,7 +13,7 @@ pub(super) fn codegen_return_param<'tcx>( block_params_iter: &mut impl Iterator<Item = Value>, ) -> CPlace<'tcx> { let (ret_place, ret_param): (_, SmallVec<[_; 2]>) = match fx.fn_abi.as_ref().unwrap().ret.mode { - PassMode::Ignore | PassMode::Direct(_) | PassMode::Pair(_, _) | PassMode::Cast(..) => { + PassMode::Ignore | PassMode::Direct(_) | PassMode::Pair(_, _) | PassMode::Cast { .. } => { let is_ssa = ssa_analyzed[RETURN_PLACE].is_ssa(fx, fx.fn_abi.as_ref().unwrap().ret.layout.ty); ( @@ -26,7 +26,7 @@ pub(super) fn codegen_return_param<'tcx>( smallvec![], ) } - PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ } => { let ret_param = block_params_iter.next().unwrap(); assert_eq!(fx.bcx.func.dfg.value_type(ret_param), fx.pointer_type); ( @@ -34,7 +34,7 @@ pub(super) fn codegen_return_param<'tcx>( smallvec![ret_param], ) } - PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => { unreachable!("unsized return value") } }; @@ -62,7 +62,7 @@ pub(super) fn codegen_with_call_return_arg<'tcx>( ) { let (ret_temp_place, return_ptr) = match ret_arg_abi.mode { PassMode::Ignore => (None, None), - PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ } => { if let Some(ret_ptr) = ret_place.try_to_ptr() { // This is an optimization to prevent unnecessary copies of the return value when // the return place is already a memory place as opposed to a register. @@ -73,10 +73,10 @@ pub(super) fn codegen_with_call_return_arg<'tcx>( (Some(place), Some(place.to_ptr().get_addr(fx))) } } - PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => { unreachable!("unsized return value") } - PassMode::Direct(_) | PassMode::Pair(_, _) | PassMode::Cast(..) => (None, None), + PassMode::Direct(_) | PassMode::Pair(_, _) | PassMode::Cast { .. } => (None, None), }; let call_inst = f(fx, return_ptr); @@ -93,21 +93,21 @@ pub(super) fn codegen_with_call_return_arg<'tcx>( ret_place .write_cvalue(fx, CValue::by_val_pair(ret_val_a, ret_val_b, ret_arg_abi.layout)); } - PassMode::Cast(ref cast, _) => { + PassMode::Cast { ref cast, .. } => { let results = fx.bcx.inst_results(call_inst).iter().copied().collect::<SmallVec<[Value; 2]>>(); let result = super::pass_mode::from_casted_value(fx, &results, ret_place.layout(), cast); ret_place.write_cvalue(fx, result); } - PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ } => { if let Some(ret_temp_place) = ret_temp_place { // If ret_temp_place is None, it is not necessary to copy the return value. let ret_temp_value = ret_temp_place.to_cvalue(fx); ret_place.write_cvalue(fx, ret_temp_value); } } - PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => { unreachable!("unsized return value") } } @@ -116,10 +116,10 @@ pub(super) fn codegen_with_call_return_arg<'tcx>( /// Codegen a return instruction with the right return value(s) if any. pub(crate) fn codegen_return(fx: &mut FunctionCx<'_, '_, '_>) { match fx.fn_abi.as_ref().unwrap().ret.mode { - PassMode::Ignore | PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: _ } => { + PassMode::Ignore | PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ } => { fx.bcx.ins().return_(&[]); } - PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => { unreachable!("unsized return value") } PassMode::Direct(_) => { @@ -132,7 +132,7 @@ pub(crate) fn codegen_return(fx: &mut FunctionCx<'_, '_, '_>) { let (ret_val_a, ret_val_b) = place.to_cvalue(fx).load_scalar_pair(fx); fx.bcx.ins().return_(&[ret_val_a, ret_val_b]); } - PassMode::Cast(ref cast, _) => { + PassMode::Cast { ref cast, .. } => { let place = fx.get_local_place(RETURN_PLACE); let ret_val = place.to_cvalue(fx); let ret_vals = super::pass_mode::to_casted_value(fx, ret_val, cast); diff --git a/compiler/rustc_codegen_gcc/src/abi.rs b/compiler/rustc_codegen_gcc/src/abi.rs index 377dc753f68..a49530ebb4c 100644 --- a/compiler/rustc_codegen_gcc/src/abi.rs +++ b/compiler/rustc_codegen_gcc/src/abi.rs @@ -113,7 +113,7 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { match self.ret.mode { PassMode::Ignore => cx.type_void(), PassMode::Direct(_) | PassMode::Pair(..) => self.ret.layout.immediate_gcc_type(cx), - PassMode::Cast(ref cast, _) => cast.gcc_type(cx), + PassMode::Cast { ref cast, .. } => cast.gcc_type(cx), PassMode::Indirect { .. } => { argument_tys.push(cx.type_ptr_to(self.ret.memory_ty(cx))); cx.type_void() @@ -129,21 +129,21 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { argument_tys.push(arg.layout.scalar_pair_element_gcc_type(cx, 1)); continue; } - PassMode::Indirect { extra_attrs: Some(_), .. } => { + PassMode::Indirect { meta_attrs: Some(_), .. } => { unimplemented!(); } - PassMode::Cast(ref cast, pad_i32) => { + PassMode::Cast { ref cast, pad_i32 } => { // add padding if pad_i32 { argument_tys.push(Reg::i32().gcc_type(cx)); } cast.gcc_type(cx) } - PassMode::Indirect { extra_attrs: None, on_stack: true, .. } => { + PassMode::Indirect { meta_attrs: None, on_stack: true, .. } => { on_stack_param_indices.insert(argument_tys.len()); arg.memory_ty(cx) }, - PassMode::Indirect { extra_attrs: None, on_stack: false, .. } => cx.type_ptr_to(arg.memory_ty(cx)), + PassMode::Indirect { meta_attrs: None, on_stack: false, .. } => cx.type_ptr_to(arg.memory_ty(cx)), }; argument_tys.push(arg_ty); } diff --git a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs index f8c32c6dbbb..68a087a1d7f 100644 --- a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs +++ b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs @@ -144,7 +144,7 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'a, 'gcc, 'tcx> { sym::volatile_load | sym::unaligned_volatile_load => { let tp_ty = fn_args.type_at(0); let mut ptr = args[0].immediate(); - if let PassMode::Cast(ty, _) = &fn_abi.ret.mode { + if let PassMode::Cast { cast: ty, .. } = &fn_abi.ret.mode { ptr = self.pointercast(ptr, self.type_ptr_to(ty.gcc_type(self))); } let load = self.volatile_load(ptr.get_type(), ptr); @@ -353,7 +353,7 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'a, 'gcc, 'tcx> { }; if !fn_abi.ret.is_ignore() { - if let PassMode::Cast(ty, _) = &fn_abi.ret.mode { + if let PassMode::Cast { cast: ty, .. } = &fn_abi.ret.mode { let ptr_llty = self.type_ptr_to(ty.gcc_type(self)); let ptr = self.pointercast(result.llval, ptr_llty); self.store(llval, ptr, result.align); @@ -449,7 +449,7 @@ impl<'gcc, 'tcx> ArgAbiExt<'gcc, 'tcx> for ArgAbi<'tcx, Ty<'tcx>> { else if self.is_unsized_indirect() { bug!("unsized `ArgAbi` must be handled through `store_fn_arg`"); } - else if let PassMode::Cast(ref cast, _) = self.mode { + else if let PassMode::Cast { ref cast, .. } = self.mode { // FIXME(eddyb): Figure out when the simpler Store is safe, clang // uses it for i16 -> {i8, i8}, but not for i24 -> {i8, i8, i8}. let can_store_through_cast_ptr = false; @@ -511,10 +511,10 @@ impl<'gcc, 'tcx> ArgAbiExt<'gcc, 'tcx> for ArgAbi<'tcx, Ty<'tcx>> { PassMode::Pair(..) => { OperandValue::Pair(next(), next()).store(bx, dst); }, - PassMode::Indirect { extra_attrs: Some(_), .. } => { + PassMode::Indirect { meta_attrs: Some(_), .. } => { OperandValue::Ref(next(), Some(next()), self.layout.align.abi).store(bx, dst); }, - PassMode::Direct(_) | PassMode::Indirect { extra_attrs: None, .. } | PassMode::Cast(..) => { + PassMode::Direct(_) | PassMode::Indirect { meta_attrs: None, .. } | PassMode::Cast { .. } => { let next_arg = next(); self.store(bx, next_arg, dst); }, diff --git a/compiler/rustc_codegen_llvm/src/abi.rs b/compiler/rustc_codegen_llvm/src/abi.rs index 64587f98b8a..9e834b83df4 100644 --- a/compiler/rustc_codegen_llvm/src/abi.rs +++ b/compiler/rustc_codegen_llvm/src/abi.rs @@ -211,7 +211,7 @@ impl<'ll, 'tcx> ArgAbiExt<'ll, 'tcx> for ArgAbi<'tcx, Ty<'tcx>> { OperandValue::Ref(val, None, self.layout.align.abi).store(bx, dst) } else if self.is_unsized_indirect() { bug!("unsized `ArgAbi` must be handled through `store_fn_arg`"); - } else if let PassMode::Cast(cast, _) = &self.mode { + } else if let PassMode::Cast { cast, pad_i32: _ } = &self.mode { // FIXME(eddyb): Figure out when the simpler Store is safe, clang // uses it for i16 -> {i8, i8}, but not for i24 -> {i8, i8, i8}. let can_store_through_cast_ptr = false; @@ -274,12 +274,12 @@ impl<'ll, 'tcx> ArgAbiExt<'ll, 'tcx> for ArgAbi<'tcx, Ty<'tcx>> { PassMode::Pair(..) => { OperandValue::Pair(next(), next()).store(bx, dst); } - PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } => { + PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => { OperandValue::Ref(next(), Some(next()), self.layout.align.abi).store(bx, dst); } PassMode::Direct(_) - | PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: _ } - | PassMode::Cast(..) => { + | PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ } + | PassMode::Cast { .. } => { let next_arg = next(); self.store(bx, next_arg, dst); } @@ -332,7 +332,7 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { let llreturn_ty = match &self.ret.mode { PassMode::Ignore => cx.type_void(), PassMode::Direct(_) | PassMode::Pair(..) => self.ret.layout.immediate_llvm_type(cx), - PassMode::Cast(cast, _) => cast.llvm_type(cx), + PassMode::Cast { cast, pad_i32: _ } => cast.llvm_type(cx), PassMode::Indirect { .. } => { llargument_tys.push(cx.type_ptr()); cx.type_void() @@ -351,6 +351,11 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { // guarnateeing that we generate ABI-compatible LLVM IR. Things get tricky for // aggregates... if matches!(arg.layout.abi, abi::Abi::Aggregate { .. }) { + assert!( + arg.layout.is_sized(), + "`PassMode::Direct` for unsized type: {}", + arg.layout.ty + ); // This really shouldn't happen, since `immediate_llvm_type` will use // `layout.fields` to turn this Rust type into an LLVM type. This means all // sorts of Rust type details leak into the ABI. However wasm sadly *does* @@ -378,8 +383,10 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { llargument_tys.push(arg.layout.scalar_pair_element_llvm_type(cx, 1, true)); continue; } - PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } => { - assert!(arg.layout.is_unsized()); + PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack } => { + // `Indirect` with metadata is only for unsized types, and doesn't work with + // on-stack passing. + assert!(arg.layout.is_unsized() && !on_stack); // Construct the type of a (wide) pointer to `ty`, and pass its two fields. // Any two ABI-compatible unsized types have the same metadata type and // moreover the same metadata value leads to the same dynamic size and @@ -390,7 +397,13 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { llargument_tys.push(ptr_layout.scalar_pair_element_llvm_type(cx, 1, true)); continue; } - PassMode::Cast(cast, pad_i32) => { + PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ } => { + assert!(arg.layout.is_sized()); + cx.type_ptr() + } + PassMode::Cast { cast, pad_i32 } => { + // `Cast` means "transmute to `CastType`"; that only makes sense for sized types. + assert!(arg.layout.is_sized()); // add padding if *pad_i32 { llargument_tys.push(Reg::i32().llvm_type(cx)); @@ -399,7 +412,6 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { // We assume here that ABI-compatible Rust types have the same cast type. cast.llvm_type(cx) } - PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: _ } => cx.type_ptr(), }; llargument_tys.push(llarg_ty); } @@ -442,13 +454,13 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { PassMode::Direct(attrs) => { attrs.apply_attrs_to_llfn(llvm::AttributePlace::ReturnValue, cx, llfn); } - PassMode::Indirect { attrs, extra_attrs: _, on_stack } => { + PassMode::Indirect { attrs, meta_attrs: _, on_stack } => { assert!(!on_stack); let i = apply(attrs); let sret = llvm::CreateStructRetAttr(cx.llcx, self.ret.layout.llvm_type(cx)); attributes::apply_to_llfn(llfn, llvm::AttributePlace::Argument(i), &[sret]); } - PassMode::Cast(cast, _) => { + PassMode::Cast { cast, pad_i32: _ } => { cast.attrs.apply_attrs_to_llfn(llvm::AttributePlace::ReturnValue, cx, llfn); } _ => {} @@ -456,25 +468,25 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { for arg in self.args.iter() { match &arg.mode { PassMode::Ignore => {} - PassMode::Indirect { attrs, extra_attrs: None, on_stack: true } => { + PassMode::Indirect { attrs, meta_attrs: None, on_stack: true } => { let i = apply(attrs); let byval = llvm::CreateByValAttr(cx.llcx, arg.layout.llvm_type(cx)); attributes::apply_to_llfn(llfn, llvm::AttributePlace::Argument(i), &[byval]); } PassMode::Direct(attrs) - | PassMode::Indirect { attrs, extra_attrs: None, on_stack: false } => { + | PassMode::Indirect { attrs, meta_attrs: None, on_stack: false } => { apply(attrs); } - PassMode::Indirect { attrs, extra_attrs: Some(extra_attrs), on_stack } => { + PassMode::Indirect { attrs, meta_attrs: Some(meta_attrs), on_stack } => { assert!(!on_stack); apply(attrs); - apply(extra_attrs); + apply(meta_attrs); } PassMode::Pair(a, b) => { apply(a); apply(b); } - PassMode::Cast(cast, pad_i32) => { + PassMode::Cast { cast, pad_i32 } => { if *pad_i32 { apply(&ArgAttributes::new()); } @@ -504,13 +516,13 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { PassMode::Direct(attrs) => { attrs.apply_attrs_to_callsite(llvm::AttributePlace::ReturnValue, bx.cx, callsite); } - PassMode::Indirect { attrs, extra_attrs: _, on_stack } => { + PassMode::Indirect { attrs, meta_attrs: _, on_stack } => { assert!(!on_stack); let i = apply(bx.cx, attrs); let sret = llvm::CreateStructRetAttr(bx.cx.llcx, self.ret.layout.llvm_type(bx)); attributes::apply_to_callsite(callsite, llvm::AttributePlace::Argument(i), &[sret]); } - PassMode::Cast(cast, _) => { + PassMode::Cast { cast, pad_i32: _ } => { cast.attrs.apply_attrs_to_callsite( llvm::AttributePlace::ReturnValue, &bx.cx, @@ -532,7 +544,7 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { for arg in self.args.iter() { match &arg.mode { PassMode::Ignore => {} - PassMode::Indirect { attrs, extra_attrs: None, on_stack: true } => { + PassMode::Indirect { attrs, meta_attrs: None, on_stack: true } => { let i = apply(bx.cx, attrs); let byval = llvm::CreateByValAttr(bx.cx.llcx, arg.layout.llvm_type(bx)); attributes::apply_to_callsite( @@ -542,18 +554,18 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { ); } PassMode::Direct(attrs) - | PassMode::Indirect { attrs, extra_attrs: None, on_stack: false } => { + | PassMode::Indirect { attrs, meta_attrs: None, on_stack: false } => { apply(bx.cx, attrs); } - PassMode::Indirect { attrs, extra_attrs: Some(extra_attrs), on_stack: _ } => { + PassMode::Indirect { attrs, meta_attrs: Some(meta_attrs), on_stack: _ } => { apply(bx.cx, attrs); - apply(bx.cx, extra_attrs); + apply(bx.cx, meta_attrs); } PassMode::Pair(a, b) => { apply(bx.cx, a); apply(bx.cx, b); } - PassMode::Cast(cast, pad_i32) => { + PassMode::Cast { cast, pad_i32 } => { if *pad_i32 { apply(bx.cx, &ArgAttributes::new()); } diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs index a9b06030e70..9289c37d763 100644 --- a/compiler/rustc_codegen_llvm/src/intrinsic.rs +++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs @@ -165,7 +165,7 @@ impl<'ll, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'_, 'll, 'tcx> { sym::volatile_load | sym::unaligned_volatile_load => { let tp_ty = fn_args.type_at(0); let ptr = args[0].immediate(); - let load = if let PassMode::Cast(ty, _) = &fn_abi.ret.mode { + let load = if let PassMode::Cast { cast: ty, pad_i32: _ } = &fn_abi.ret.mode { let llty = ty.llvm_type(self); self.volatile_load(llty, ptr) } else { @@ -386,7 +386,7 @@ impl<'ll, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'_, 'll, 'tcx> { }; if !fn_abi.ret.is_ignore() { - if let PassMode::Cast(_, _) = &fn_abi.ret.mode { + if let PassMode::Cast { .. } = &fn_abi.ret.mode { self.store(llval, result.llval, result.align); } else { OperandRef::from_immediate_or_packed_pair(self, llval, result.layout) diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index d8f6b4ed836..464278f9c5e 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -416,7 +416,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { } } - PassMode::Cast(cast_ty, _) => { + PassMode::Cast { cast: cast_ty, pad_i32: _ } => { let op = match self.locals[mir::RETURN_PLACE] { LocalRef::Operand(op) => op, LocalRef::PendingOperand => bug!("use of return before def"), @@ -1310,7 +1310,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { ) { match arg.mode { PassMode::Ignore => return, - PassMode::Cast(_, true) => { + PassMode::Cast { pad_i32: true, .. } => { // Fill padding with undef value, where applicable. llargs.push(bx.const_undef(bx.reg_backend_type(&Reg::i32()))); } @@ -1322,7 +1322,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { } _ => bug!("codegen_argument: {:?} invalid for pair argument", op), }, - PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } => match op.val { + PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => match op.val { Ref(a, Some(b), _) => { llargs.push(a); llargs.push(b); @@ -1347,7 +1347,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { op.val.store(bx, scratch); (scratch.llval, scratch.align, true) } - PassMode::Cast(..) => { + PassMode::Cast { .. } => { let scratch = PlaceRef::alloca(bx, arg.layout); op.val.store(bx, scratch); (scratch.llval, scratch.align, true) @@ -1400,7 +1400,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { if by_ref && !arg.is_indirect() { // Have to load the argument, maybe while casting it. - if let PassMode::Cast(ty, _) = &arg.mode { + if let PassMode::Cast { cast: ty, .. } = &arg.mode { let llty = bx.cast_backend_type(ty); llval = bx.load(llty, llval, align.min(arg.layout.align.abi)); } else { @@ -1744,7 +1744,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { } DirectOperand(index) => { // If there is a cast, we have to store and reload. - let op = if let PassMode::Cast(..) = ret_abi.mode { + let op = if let PassMode::Cast { .. } = ret_abi.mode { let tmp = PlaceRef::alloca(bx, ret_abi.layout); tmp.storage_live(bx); bx.store_arg(&ret_abi, llval, tmp); diff --git a/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs b/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs index 8821fb21fd0..8efef440522 100644 --- a/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs +++ b/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs @@ -462,7 +462,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { }; if !fn_abi.ret.is_ignore() { - if let PassMode::Cast(..) = &fn_abi.ret.mode { + if let PassMode::Cast { .. } = &fn_abi.ret.mode { bx.store(llval, result.llval, result.align); } else { OperandRef::from_immediate_or_packed_pair(bx, llval, result.layout) diff --git a/compiler/rustc_codegen_ssa/src/mir/mod.rs b/compiler/rustc_codegen_ssa/src/mir/mod.rs index c4408f2db4c..8445de6c678 100644 --- a/compiler/rustc_codegen_ssa/src/mir/mod.rs +++ b/compiler/rustc_codegen_ssa/src/mir/mod.rs @@ -327,7 +327,7 @@ fn arg_local_refs<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( for i in 0..tupled_arg_tys.len() { let arg = &fx.fn_abi.args[idx]; idx += 1; - if let PassMode::Cast(_, true) = arg.mode { + if let PassMode::Cast { pad_i32: true, .. } = arg.mode { llarg_idx += 1; } let pr_field = place.project_field(bx, i); @@ -351,7 +351,7 @@ fn arg_local_refs<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( let arg = &fx.fn_abi.args[idx]; idx += 1; - if let PassMode::Cast(_, true) = arg.mode { + if let PassMode::Cast { pad_i32: true, .. } = arg.mode { llarg_idx += 1; } diff --git a/compiler/rustc_error_codes/src/error_codes/E0691.md b/compiler/rustc_error_codes/src/error_codes/E0691.md index 483c74c0ff5..a5bedd61e92 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0691.md +++ b/compiler/rustc_error_codes/src/error_codes/E0691.md @@ -1,9 +1,11 @@ +#### Note: this error code is no longer emitted by the compiler. + A struct, enum, or union with the `repr(transparent)` representation hint contains a zero-sized field that requires non-trivial alignment. Erroneous code example: -```compile_fail,E0691 +```ignore (error is no longer emitted) #![feature(repr_align)] #[repr(align(32))] diff --git a/compiler/rustc_feature/src/active.rs b/compiler/rustc_feature/src/active.rs index 6c338be99b6..f3b88f46bae 100644 --- a/compiler/rustc_feature/src/active.rs +++ b/compiler/rustc_feature/src/active.rs @@ -416,7 +416,7 @@ declare_features! ( /// Allows having using `suggestion` in the `#[deprecated]` attribute. (active, deprecated_suggestion, "1.61.0", Some(94785), None), /// Allows using the `#[diagnostic]` attribute tool namespace - (active, diagnostic_namespace, "1.73.0", Some(94785), None), + (active, diagnostic_namespace, "1.73.0", Some(111996), None), /// Controls errors in trait implementations. (active, do_not_recommend, "1.67.0", Some(51992), None), /// Tells rustdoc to automatically generate `#[doc(cfg(...))]`. diff --git a/compiler/rustc_hir_analysis/messages.ftl b/compiler/rustc_hir_analysis/messages.ftl index 1a38657dff4..18f7a18625e 100644 --- a/compiler/rustc_hir_analysis/messages.ftl +++ b/compiler/rustc_hir_analysis/messages.ftl @@ -304,13 +304,13 @@ hir_analysis_transparent_enum_variant = transparent enum needs exactly one varia .many_label = too many variants in `{$path}` .multi_label = variant here -hir_analysis_transparent_non_zero_sized = transparent {$desc} needs at most one non-zero-sized field, but has {$field_count} - .label = needs at most one non-zero-sized field, but has {$field_count} - .labels = this field is non-zero-sized +hir_analysis_transparent_non_zero_sized = transparent {$desc} needs at most one field with non-trivial size or alignment, but has {$field_count} + .label = needs at most one field with non-trivial size or alignment, but has {$field_count} + .labels = this field has non-zero size or requires alignment -hir_analysis_transparent_non_zero_sized_enum = the variant of a transparent {$desc} needs at most one non-zero-sized field, but has {$field_count} - .label = needs at most one non-zero-sized field, but has {$field_count} - .labels = this field is non-zero-sized +hir_analysis_transparent_non_zero_sized_enum = the variant of a transparent {$desc} needs at most one field with non-trivial size or alignment, but has {$field_count} + .label = needs at most one field with non-trivial size or alignment, but has {$field_count} + .labels = this field has non-zero size or requires alignment hir_analysis_typeof_reserved_keyword_used = `typeof` is a reserved keyword but unimplemented diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index 9a57cc6dbab..1d381175c75 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -1138,19 +1138,19 @@ pub(super) fn check_transparent<'tcx>(tcx: TyCtxt<'tcx>, adt: ty::AdtDef<'tcx>) return; } - // For each field, figure out if it's known to be a ZST and align(1), with "known" - // respecting #[non_exhaustive] attributes. + // For each field, figure out if it's known to have "trivial" layout (i.e., is a 1-ZST), with + // "known" respecting #[non_exhaustive] attributes. let field_infos = adt.all_fields().map(|field| { let ty = field.ty(tcx, GenericArgs::identity_for_item(tcx, field.did)); let param_env = tcx.param_env(field.did); let layout = tcx.layout_of(param_env.and(ty)); // We are currently checking the type this field came from, so it must be local let span = tcx.hir().span_if_local(field.did).unwrap(); - let zst = layout.is_ok_and(|layout| layout.is_zst()); - let align = layout.ok().map(|layout| layout.align.abi.bytes()); - if !zst { - return (span, zst, align, None); + let trivial = layout.is_ok_and(|layout| layout.is_1zst()); + if !trivial { + return (span, trivial, None); } + // Even some 1-ZST fields are not allowed though, if they have `non_exhaustive`. fn check_non_exhaustive<'tcx>( tcx: TyCtxt<'tcx>, @@ -1184,41 +1184,25 @@ pub(super) fn check_transparent<'tcx>(tcx: TyCtxt<'tcx>, adt: ty::AdtDef<'tcx>) } } - (span, zst, align, check_non_exhaustive(tcx, ty).break_value()) + (span, trivial, check_non_exhaustive(tcx, ty).break_value()) }); - let non_zst_fields = field_infos + let non_trivial_fields = field_infos .clone() - .filter_map(|(span, zst, _align, _non_exhaustive)| if !zst { Some(span) } else { None }); - let non_zst_count = non_zst_fields.clone().count(); - if non_zst_count >= 2 { - bad_non_zero_sized_fields(tcx, adt, non_zst_count, non_zst_fields, tcx.def_span(adt.did())); + .filter_map(|(span, trivial, _non_exhaustive)| if !trivial { Some(span) } else { None }); + let non_trivial_count = non_trivial_fields.clone().count(); + if non_trivial_count >= 2 { + bad_non_zero_sized_fields( + tcx, + adt, + non_trivial_count, + non_trivial_fields, + tcx.def_span(adt.did()), + ); + return; } - let incompatible_zst_fields = - field_infos.clone().filter(|(_, _, _, opt)| opt.is_some()).count(); - let incompat = incompatible_zst_fields + non_zst_count >= 2 && non_zst_count < 2; - for (span, zst, align, non_exhaustive) in field_infos { - if zst && align != Some(1) { - let mut err = struct_span_err!( - tcx.sess, - span, - E0691, - "zero-sized field in transparent {} has alignment larger than 1", - adt.descr(), - ); - - if let Some(align_bytes) = align { - err.span_label( - span, - format!("has alignment of {align_bytes}, which is larger than 1"), - ); - } else { - err.span_label(span, "may have alignment larger than 1"); - } - - err.emit(); - } - if incompat && let Some((descr, def_id, args, non_exhaustive)) = non_exhaustive { + for (span, _trivial, non_exhaustive) in field_infos { + if let Some((descr, def_id, args, non_exhaustive)) = non_exhaustive { tcx.struct_span_lint_hir( REPR_TRANSPARENT_EXTERNAL_PRIVATE_FIELDS, tcx.hir().local_def_id_to_hir_id(adt.did().expect_local()), diff --git a/compiler/rustc_hir_typeck/messages.ftl b/compiler/rustc_hir_typeck/messages.ftl index 034ffc17a7a..4be3ea890dc 100644 --- a/compiler/rustc_hir_typeck/messages.ftl +++ b/compiler/rustc_hir_typeck/messages.ftl @@ -33,6 +33,10 @@ hir_typeck_expected_default_return_type = expected `()` because of default retur hir_typeck_expected_return_type = expected `{$expected}` because of return type +hir_typeck_explicit_destructor = explicit use of destructor method + .label = explicit destructor calls not allowed + .suggestion = consider using `drop` function + hir_typeck_field_multiply_specified_in_initializer = field `{$ident}` specified more than once .label = used more than once @@ -52,8 +56,10 @@ hir_typeck_functional_record_update_on_non_struct = hir_typeck_help_set_edition_cargo = set `edition = "{$edition}"` in `Cargo.toml` hir_typeck_help_set_edition_standalone = pass `--edition {$edition}` to `rustc` -hir_typeck_lang_start_expected_sig_note = the `start` lang item should have the signature `fn(fn() -> T, isize, *const *const u8, u8) -> isize` +hir_typeck_invalid_callee = expected function, found {$ty} + +hir_typeck_lang_start_expected_sig_note = the `start` lang item should have the signature `fn(fn() -> T, isize, *const *const u8, u8) -> isize` hir_typeck_lang_start_incorrect_number_params = incorrect number of parameters for the `start` lang item hir_typeck_lang_start_incorrect_number_params_note_expected_count = the `start` lang item should have four parameters, but found {$found_param_count} @@ -66,6 +72,9 @@ hir_typeck_lang_start_incorrect_ret_ty = the return type of the `start` lang ite hir_typeck_method_call_on_unknown_raw_pointee = cannot call a method on a raw pointer with an unknown pointee type +hir_typeck_missing_fn_lang_items = failed to find an overloaded call trait for closure call + .help = make sure the `fn`/`fn_mut`/`fn_once` lang items are defined and have correctly defined `call`/`call_mut`/`call_once` methods + hir_typeck_missing_parentheses_in_range = can't call method `{$method_name}` on type `{$ty_str}` hir_typeck_no_associated_item = no {$item_kind} named `{$item_name}` found for {$ty_prefix} `{$ty_str}`{$trait_missing_method -> @@ -92,6 +101,9 @@ hir_typeck_return_stmt_outside_of_fn_body = .encl_body_label = the {$statement_kind} is part of this body... .encl_fn_label = ...not the enclosing function body +hir_typeck_rustcall_incorrect_args = + functions with the "rust-call" ABI must take a single non-self tuple argument + hir_typeck_struct_expr_non_exhaustive = cannot create non-exhaustive {$what} using struct expression diff --git a/compiler/rustc_hir_typeck/src/callee.rs b/compiler/rustc_hir_typeck/src/callee.rs index 02371f85ac3..b39919ece71 100644 --- a/compiler/rustc_hir_typeck/src/callee.rs +++ b/compiler/rustc_hir_typeck/src/callee.rs @@ -2,9 +2,9 @@ use super::method::probe::ProbeScope; use super::method::MethodCallee; use super::{Expectation, FnCtxt, TupleArgumentsFlag}; -use crate::type_error_struct; +use crate::errors; use rustc_ast::util::parser::PREC_POSTFIX; -use rustc_errors::{struct_span_err, Applicability, Diagnostic, ErrorGuaranteed, StashKey}; +use rustc_errors::{Applicability, Diagnostic, ErrorGuaranteed, StashKey}; use rustc_hir as hir; use rustc_hir::def::{self, CtorKind, DefKind, Namespace, Res}; use rustc_hir::def_id::DefId; @@ -44,23 +44,15 @@ pub fn check_legal_trait_for_method_call( trait_id: DefId, ) { if tcx.lang_items().drop_trait() == Some(trait_id) { - let mut err = struct_span_err!(tcx.sess, span, E0040, "explicit use of destructor method"); - err.span_label(span, "explicit destructor calls not allowed"); - - let (sp, suggestion) = receiver - .and_then(|s| tcx.sess.source_map().span_to_snippet(s).ok()) - .filter(|snippet| !snippet.is_empty()) - .map(|snippet| (expr_span, format!("drop({snippet})"))) - .unwrap_or_else(|| (span, "drop".to_string())); - - err.span_suggestion( - sp, - "consider using `drop` function", - suggestion, - Applicability::MaybeIncorrect, - ); - - err.emit(); + let sugg = if let Some(receiver) = receiver.filter(|s| !s.is_empty()) { + errors::ExplicitDestructorCallSugg::Snippet { + lo: expr_span.shrink_to_lo(), + hi: receiver.shrink_to_hi().to(expr_span.shrink_to_hi()), + } + } else { + errors::ExplicitDestructorCallSugg::Empty(span) + }; + tcx.sess.emit_err(errors::ExplicitDestructorCall { span, sugg }); } } @@ -387,6 +379,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Unit testing: function items annotated with // `#[rustc_evaluate_where_clauses]` trigger special output // to let us test the trait evaluation system. + // Untranslatable diagnostics are okay for rustc internals + #[allow(rustc::untranslatable_diagnostic)] + #[allow(rustc::diagnostic_outside_of_impl)] if self.tcx.has_attr(def_id, sym::rustc_evaluate_where_clauses) { let predicates = self.tcx.predicates_of(def_id); let predicates = predicates.instantiate(self.tcx, args); @@ -478,10 +473,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ); self.require_type_is_sized(ty, sp, traits::RustCall); } else { - self.tcx.sess.span_err( - sp, - "functions with the \"rust-call\" ABI must take a single non-self tuple argument", - ); + self.tcx.sess.emit_err(errors::RustCallIncorrectArgs { span: sp }); } } @@ -610,17 +602,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } let callee_ty = self.resolve_vars_if_possible(callee_ty); - let mut err = type_error_struct!( - self.tcx.sess, - callee_expr.span, - callee_ty, - E0618, - "expected function, found {}", - match &unit_variant { + let mut err = self.tcx.sess.create_err(errors::InvalidCallee { + span: callee_expr.span, + ty: match &unit_variant { Some((_, kind, path)) => format!("{kind} `{path}`"), None => format!("`{callee_ty}`"), - } - ); + }, + }); + if callee_ty.references_error() { + err.downgrade_to_delayed_bug(); + } self.identify_bad_closure_def_and_call( &mut err, @@ -891,15 +882,7 @@ impl<'a, 'tcx> DeferredCallResolution<'tcx> { None => { // This can happen if `#![no_core]` is used and the `fn/fn_mut/fn_once` // lang items are not defined (issue #86238). - let mut err = fcx.inh.tcx.sess.struct_span_err( - self.call_expr.span, - "failed to find an overloaded call trait for closure call", - ); - err.help( - "make sure the `fn`/`fn_mut`/`fn_once` lang items are defined \ - and have correctly defined `call`/`call_mut`/`call_once` methods", - ); - err.emit(); + fcx.inh.tcx.sess.emit_err(errors::MissingFnLangItems { span: self.call_expr.span }); } } } diff --git a/compiler/rustc_hir_typeck/src/errors.rs b/compiler/rustc_hir_typeck/src/errors.rs index 255fe5e0206..c1d7056b1a0 100644 --- a/compiler/rustc_hir_typeck/src/errors.rs +++ b/compiler/rustc_hir_typeck/src/errors.rs @@ -55,6 +55,13 @@ impl IntoDiagnosticArg for ReturnLikeStatementKind { } #[derive(Diagnostic)] +#[diag(hir_typeck_rustcall_incorrect_args)] +pub struct RustCallIncorrectArgs { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] #[diag(hir_typeck_yield_expr_outside_of_generator, code = "E0627")] pub struct YieldExprOutsideOfGenerator { #[primary_span] @@ -77,6 +84,14 @@ pub struct MethodCallOnUnknownRawPointee { } #[derive(Diagnostic)] +#[diag(hir_typeck_missing_fn_lang_items)] +#[help] +pub struct MissingFnLangItems { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] #[diag(hir_typeck_functional_record_update_on_non_struct, code = "E0436")] pub struct FunctionalRecordUpdateOnNonStruct { #[primary_span] @@ -130,6 +145,29 @@ pub enum ExpectedReturnTypeLabel<'tcx> { } #[derive(Diagnostic)] +#[diag(hir_typeck_explicit_destructor, code = "E0040")] +pub struct ExplicitDestructorCall { + #[primary_span] + #[label] + pub span: Span, + #[subdiagnostic] + pub sugg: ExplicitDestructorCallSugg, +} + +#[derive(Subdiagnostic)] +pub enum ExplicitDestructorCallSugg { + #[suggestion(hir_typeck_suggestion, code = "drop", applicability = "maybe-incorrect")] + Empty(#[primary_span] Span), + #[multipart_suggestion(hir_typeck_suggestion, style = "short")] + Snippet { + #[suggestion_part(code = "drop(")] + lo: Span, + #[suggestion_part(code = ")")] + hi: Span, + }, +} + +#[derive(Diagnostic)] #[diag(hir_typeck_missing_parentheses_in_range, code = "E0689")] pub struct MissingParenthesesInRange { #[primary_span] @@ -252,6 +290,14 @@ impl HelpUseLatestEdition { } } +#[derive(Diagnostic)] +#[diag(hir_typeck_invalid_callee, code = "E0618")] +pub struct InvalidCallee { + #[primary_span] + pub span: Span, + pub ty: String, +} + #[derive(Subdiagnostic)] pub enum OptionResultRefMismatch { #[suggestion( diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs index f903f7a49ef..4aec28b051f 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs @@ -385,7 +385,7 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { let highlight_trait_ref = |trait_ref| Highlighted { tcx: self.tcx(), - highlight: RegionHighlightMode::new(self.tcx()), + highlight: RegionHighlightMode::default(), value: trait_ref, }; diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/trait_impl_difference.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/trait_impl_difference.rs index 12d38ced030..d2ba9966f03 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/trait_impl_difference.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/trait_impl_difference.rs @@ -67,9 +67,9 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { } impl<'tcx> HighlightBuilder<'tcx> { - fn build(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> RegionHighlightMode<'tcx> { + fn build(ty: Ty<'tcx>) -> RegionHighlightMode<'tcx> { let mut builder = - HighlightBuilder { highlight: RegionHighlightMode::new(tcx), counter: 1 }; + HighlightBuilder { highlight: RegionHighlightMode::default(), counter: 1 }; builder.visit_ty(ty); builder.highlight } @@ -85,12 +85,12 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { } } - let expected_highlight = HighlightBuilder::build(self.tcx(), expected); + let expected_highlight = HighlightBuilder::build(expected); let expected = self .cx .extract_inference_diagnostics_data(expected.into(), Some(expected_highlight)) .name; - let found_highlight = HighlightBuilder::build(self.tcx(), found); + let found_highlight = HighlightBuilder::build(found); let found = self.cx.extract_inference_diagnostics_data(found.into(), Some(found_highlight)).name; diff --git a/compiler/rustc_infer/src/infer/free_regions.rs b/compiler/rustc_infer/src/infer/free_regions.rs index 2402a7ea7c7..ed1a2a11719 100644 --- a/compiler/rustc_infer/src/infer/free_regions.rs +++ b/compiler/rustc_infer/src/infer/free_regions.rs @@ -4,7 +4,7 @@ //! and use that to decide when one free region outlives another, and so forth. use rustc_data_structures::transitive_relation::TransitiveRelation; -use rustc_middle::ty::{Lift, Region, TyCtxt}; +use rustc_middle::ty::{Region, TyCtxt}; /// Combines a `FreeRegionMap` and a `TyCtxt`. /// @@ -101,10 +101,3 @@ impl<'tcx> FreeRegionMap<'tcx> { result } } - -impl<'a, 'tcx> Lift<'tcx> for FreeRegionMap<'a> { - type Lifted = FreeRegionMap<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<FreeRegionMap<'tcx>> { - self.relation.maybe_map(|fr| tcx.lift(fr)).map(|relation| FreeRegionMap { relation }) - } -} diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs index 37e242c6e40..0634e44c562 100644 --- a/compiler/rustc_interface/src/util.rs +++ b/compiler/rustc_interface/src/util.rs @@ -568,6 +568,13 @@ pub fn build_output_filenames(attrs: &[ast::Attribute], sess: &Session) -> Outpu ) { sess.emit_fatal(errors::MultipleOutputTypesToStdout); } + + let crate_name = sess + .opts + .crate_name + .clone() + .or_else(|| rustc_attr::find_crate_name(attrs).map(|n| n.to_string())); + match sess.io.output_file { None => { // "-" as input file will cause the parser to read from stdin so we @@ -576,15 +583,11 @@ pub fn build_output_filenames(attrs: &[ast::Attribute], sess: &Session) -> Outpu let dirpath = sess.io.output_dir.clone().unwrap_or_default(); // If a crate name is present, we use it as the link name - let stem = sess - .opts - .crate_name - .clone() - .or_else(|| rustc_attr::find_crate_name(attrs).map(|n| n.to_string())) - .unwrap_or_else(|| sess.io.input.filestem().to_owned()); + let stem = crate_name.clone().unwrap_or_else(|| sess.io.input.filestem().to_owned()); OutputFilenames::new( dirpath, + crate_name.unwrap_or_else(|| stem.replace('-', "_")), stem, None, sess.io.temps_dir.clone(), @@ -609,9 +612,12 @@ pub fn build_output_filenames(attrs: &[ast::Attribute], sess: &Session) -> Outpu sess.emit_warning(errors::IgnoringOutDir); } + let out_filestem = + out_file.filestem().unwrap_or_default().to_str().unwrap().to_string(); OutputFilenames::new( out_file.parent().unwrap_or_else(|| Path::new("")).to_path_buf(), - out_file.filestem().unwrap_or_default().to_str().unwrap().to_string(), + crate_name.unwrap_or_else(|| out_filestem.replace('-', "_")), + out_filestem, ofile, sess.io.temps_dir.clone(), sess.opts.cg.extra_filename.clone(), diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index 672a7a20148..860366fdd61 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -3405,8 +3405,8 @@ declare_lint_pass! { UNFULFILLED_LINT_EXPECTATIONS, UNINHABITED_STATIC, UNKNOWN_CRATE_TYPES, - UNKNOWN_DIAGNOSTIC_ATTRIBUTES, UNKNOWN_LINTS, + UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, UNNAMEABLE_TEST_ITEMS, UNNAMEABLE_TYPES, UNREACHABLE_CODE, @@ -4420,7 +4420,8 @@ declare_lint! { } declare_lint! { - /// The `unknown_diagnostic_attributes` lint detects unrecognized diagnostic attributes. + /// The `unknown_or_malformed_diagnostic_attributes` lint detects unrecognized or otherwise malformed + /// diagnostic attributes. /// /// ### Example /// @@ -4432,15 +4433,17 @@ declare_lint! { /// /// {{produces}} /// + /// /// ### Explanation /// /// It is usually a mistake to specify a diagnostic attribute that does not exist. Check /// the spelling, and check the diagnostic attribute listing for the correct name. Also /// consider if you are using an old version of the compiler, and the attribute /// is only available in a newer version. - pub UNKNOWN_DIAGNOSTIC_ATTRIBUTES, + pub UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, Warn, - "unrecognized diagnostic attribute" + "unrecognized or malformed diagnostic attribute", + @feature_gate = sym::diagnostic_namespace; } declare_lint! { diff --git a/compiler/rustc_metadata/src/fs.rs b/compiler/rustc_metadata/src/fs.rs index 2a9662b809a..7eb2a347db2 100644 --- a/compiler/rustc_metadata/src/fs.rs +++ b/compiler/rustc_metadata/src/fs.rs @@ -5,7 +5,6 @@ use crate::errors::{ use crate::{encode_metadata, EncodedMetadata}; use rustc_data_structures::temp_dir::MaybeTempDir; -use rustc_hir::def_id::LOCAL_CRATE; use rustc_middle::ty::TyCtxt; use rustc_session::config::{OutFileName, OutputType}; use rustc_session::output::filename_for_metadata; @@ -40,8 +39,7 @@ pub fn emit_wrapper_file( } pub fn encode_and_write_metadata(tcx: TyCtxt<'_>) -> (EncodedMetadata, bool) { - let crate_name = tcx.crate_name(LOCAL_CRATE); - let out_filename = filename_for_metadata(tcx.sess, crate_name, tcx.output_filenames(())); + let out_filename = filename_for_metadata(tcx.sess, tcx.output_filenames(())); // To avoid races with another rustc process scanning the output directory, // we need to write the file somewhere else and atomically move it to its // final destination, with an `fs::rename` call. In order for the rename to diff --git a/compiler/rustc_middle/src/infer/canonical.rs b/compiler/rustc_middle/src/infer/canonical.rs index b17f1512886..2f2597d6b22 100644 --- a/compiler/rustc_middle/src/infer/canonical.rs +++ b/compiler/rustc_middle/src/infer/canonical.rs @@ -34,7 +34,7 @@ use std::ops::Index; /// variables have been rewritten to "canonical vars". These are /// numbered starting from 0 in order of first appearance. #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TyDecodable, TyEncodable)] -#[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(HashStable, TypeFoldable, TypeVisitable)] pub struct Canonical<'tcx, V> { pub value: V, pub max_universe: ty::UniverseIndex, @@ -72,7 +72,7 @@ impl<'tcx> ty::TypeFoldable<TyCtxt<'tcx>> for CanonicalVarInfos<'tcx> { /// variables. You will need to supply it later to instantiate the /// canonicalized query response. #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TyDecodable, TyEncodable)] -#[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(HashStable, TypeFoldable, TypeVisitable)] pub struct CanonicalVarValues<'tcx> { pub var_values: ty::GenericArgsRef<'tcx>, } @@ -311,7 +311,7 @@ pub enum CanonicalTyVarKind { /// After we execute a query with a canonicalized key, we get back a /// `Canonical<QueryResponse<..>>`. You can use /// `instantiate_query_result` to access the data in this result. -#[derive(Clone, Debug, HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(Clone, Debug, HashStable, TypeFoldable, TypeVisitable)] pub struct QueryResponse<'tcx, R> { pub var_values: CanonicalVarValues<'tcx>, pub region_constraints: QueryRegionConstraints<'tcx>, @@ -326,7 +326,7 @@ pub struct QueryResponse<'tcx, R> { } #[derive(Clone, Debug, Default, PartialEq, Eq, Hash)] -#[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(HashStable, TypeFoldable, TypeVisitable)] pub struct QueryRegionConstraints<'tcx> { pub outlives: Vec<QueryOutlivesConstraint<'tcx>>, pub member_constraints: Vec<MemberConstraint<'tcx>>, @@ -432,7 +432,7 @@ impl<'tcx, V> Canonical<'tcx, V> { pub type QueryOutlivesConstraint<'tcx> = (ty::OutlivesPredicate<GenericArg<'tcx>, Region<'tcx>>, ConstraintCategory<'tcx>); -TrivialTypeTraversalAndLiftImpls! { +TrivialTypeTraversalImpls! { crate::infer::canonical::Certainty, crate::infer::canonical::CanonicalTyVarKind, } diff --git a/compiler/rustc_middle/src/infer/mod.rs b/compiler/rustc_middle/src/infer/mod.rs index 493bb8a6823..1384611e146 100644 --- a/compiler/rustc_middle/src/infer/mod.rs +++ b/compiler/rustc_middle/src/infer/mod.rs @@ -13,7 +13,7 @@ use rustc_span::Span; /// R0 member of [O1..On] /// ``` #[derive(Debug, Clone, PartialEq, Eq, Hash)] -#[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(HashStable, TypeFoldable, TypeVisitable)] pub struct MemberConstraint<'tcx> { /// The `DefId` and args of the opaque type causing this constraint. /// Used for error reporting. diff --git a/compiler/rustc_middle/src/macros.rs b/compiler/rustc_middle/src/macros.rs index fca16d8e509..c1884bb8068 100644 --- a/compiler/rustc_middle/src/macros.rs +++ b/compiler/rustc_middle/src/macros.rs @@ -42,7 +42,7 @@ macro_rules! span_bug { // the impls for you. #[macro_export] -macro_rules! CloneLiftImpls { +macro_rules! TrivialLiftImpls { ($($ty:ty),+ $(,)?) => { $( impl<'tcx> $crate::ty::Lift<'tcx> for $ty { @@ -96,6 +96,6 @@ macro_rules! TrivialTypeTraversalImpls { macro_rules! TrivialTypeTraversalAndLiftImpls { ($($t:tt)*) => { TrivialTypeTraversalImpls! { $($t)* } - CloneLiftImpls! { $($t)* } + TrivialLiftImpls! { $($t)* } } } diff --git a/compiler/rustc_middle/src/mir/basic_blocks.rs b/compiler/rustc_middle/src/mir/basic_blocks.rs index 70d8f3bd54b..cd770c395e4 100644 --- a/compiler/rustc_middle/src/mir/basic_blocks.rs +++ b/compiler/rustc_middle/src/mir/basic_blocks.rs @@ -178,7 +178,7 @@ impl<'tcx> graph::WithPredecessors for BasicBlocks<'tcx> { } } -TrivialTypeTraversalAndLiftImpls! { Cache } +TrivialTypeTraversalImpls! { Cache } impl<S: Encoder> Encodable<S> for Cache { #[inline] diff --git a/compiler/rustc_middle/src/mir/interpret/error.rs b/compiler/rustc_middle/src/mir/interpret/error.rs index 7e3be0b5d5f..2194ef81cec 100644 --- a/compiler/rustc_middle/src/mir/interpret/error.rs +++ b/compiler/rustc_middle/src/mir/interpret/error.rs @@ -67,7 +67,7 @@ impl Into<ErrorGuaranteed> for ReportedErrorInfo { } } -TrivialTypeTraversalAndLiftImpls! { ErrorHandled } +TrivialTypeTraversalImpls! { ErrorHandled } pub type EvalToAllocationRawResult<'tcx> = Result<ConstAlloc<'tcx>, ErrorHandled>; pub type EvalToConstValueResult<'tcx> = Result<ConstValue<'tcx>, ErrorHandled>; diff --git a/compiler/rustc_middle/src/mir/interpret/mod.rs b/compiler/rustc_middle/src/mir/interpret/mod.rs index 44d1dcbbe17..8c00746a180 100644 --- a/compiler/rustc_middle/src/mir/interpret/mod.rs +++ b/compiler/rustc_middle/src/mir/interpret/mod.rs @@ -162,7 +162,7 @@ pub use self::pointer::{Pointer, PointerArithmetic, Provenance}; /// - A constant /// - A static #[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, TyEncodable, TyDecodable)] -#[derive(HashStable, Lift, TypeFoldable, TypeVisitable)] +#[derive(HashStable, TypeFoldable, TypeVisitable)] pub struct GlobalId<'tcx> { /// For a constant or static, the `Instance` of the item itself. /// For a promoted global, the `Instance` of the function they belong to. diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 8df3a79b4d4..5e749776992 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -744,7 +744,7 @@ pub enum BindingForm<'tcx> { RefForGuard, } -TrivialTypeTraversalAndLiftImpls! { BindingForm<'tcx> } +TrivialTypeTraversalImpls! { BindingForm<'tcx> } mod binding_form_impl { use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; @@ -2295,7 +2295,7 @@ pub struct Constant<'tcx> { } #[derive(Clone, Copy, PartialEq, Eq, TyEncodable, TyDecodable, Hash, HashStable, Debug)] -#[derive(Lift, TypeFoldable, TypeVisitable)] +#[derive(TypeFoldable, TypeVisitable)] pub enum ConstantKind<'tcx> { /// This constant came from the type system. /// @@ -2615,7 +2615,7 @@ impl<'tcx> ConstantKind<'tcx> { } /// An unevaluated (potentially generic) constant used in MIR. -#[derive(Copy, Clone, Debug, Eq, PartialEq, PartialOrd, Ord, TyEncodable, TyDecodable, Lift)] +#[derive(Copy, Clone, Debug, Eq, PartialEq, PartialOrd, Ord, TyEncodable, TyDecodable)] #[derive(Hash, HashStable, TypeFoldable, TypeVisitable)] pub struct UnevaluatedConst<'tcx> { pub def: DefId, diff --git a/compiler/rustc_middle/src/mir/query.rs b/compiler/rustc_middle/src/mir/query.rs index 71bec49af93..0c80610b308 100644 --- a/compiler/rustc_middle/src/mir/query.rs +++ b/compiler/rustc_middle/src/mir/query.rs @@ -334,7 +334,7 @@ rustc_data_structures::static_assert_size!(ConstraintCategory<'_>, 16); /// /// See also `rustc_const_eval::borrow_check::constraints`. #[derive(Copy, Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Hash)] -#[derive(TyEncodable, TyDecodable, HashStable, Lift, TypeVisitable, TypeFoldable)] +#[derive(TyEncodable, TyDecodable, HashStable, TypeVisitable, TypeFoldable)] pub enum ConstraintCategory<'tcx> { Return(ReturnConstraint), Yield, diff --git a/compiler/rustc_middle/src/mir/type_foldable.rs b/compiler/rustc_middle/src/mir/type_foldable.rs index 06874741bb0..8d427fdb6f5 100644 --- a/compiler/rustc_middle/src/mir/type_foldable.rs +++ b/compiler/rustc_middle/src/mir/type_foldable.rs @@ -5,7 +5,7 @@ use rustc_ast::InlineAsmTemplatePiece; use super::*; use crate::ty; -TrivialTypeTraversalAndLiftImpls! { +TrivialTypeTraversalImpls! { BlockTailInfo, MirPhase, SourceInfo, diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index 3465759b913..1340e674568 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -13,7 +13,7 @@ use crate::infer::canonical::Canonical; use crate::mir::ConstraintCategory; use crate::ty::abstract_const::NotConstEvaluatable; use crate::ty::GenericArgsRef; -use crate::ty::{self, AdtKind, Ty, TyCtxt}; +use crate::ty::{self, AdtKind, Ty}; use rustc_data_structures::sync::Lrc; use rustc_errors::{Applicability, Diagnostic}; @@ -86,7 +86,7 @@ pub enum Reveal { /// /// We do not want to intern this as there are a lot of obligation causes which /// only live for a short period of time. -#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)] +#[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] #[derive(TypeVisitable, TypeFoldable)] pub struct ObligationCause<'tcx> { pub span: Span, @@ -194,7 +194,7 @@ impl<'tcx> ObligationCause<'tcx> { } } -#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)] +#[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] #[derive(TypeVisitable, TypeFoldable)] pub struct UnifyReceiverContext<'tcx> { pub assoc_item: ty::AssocItem, @@ -202,7 +202,7 @@ pub struct UnifyReceiverContext<'tcx> { pub args: GenericArgsRef<'tcx>, } -#[derive(Clone, PartialEq, Eq, Lift, Default, HashStable)] +#[derive(Clone, PartialEq, Eq, Default, HashStable)] #[derive(TypeVisitable, TypeFoldable, TyEncodable, TyDecodable)] pub struct InternedObligationCauseCode<'tcx> { /// `None` for `ObligationCauseCode::MiscObligation` (a common case, occurs ~60% of @@ -238,7 +238,7 @@ impl<'tcx> std::ops::Deref for InternedObligationCauseCode<'tcx> { } } -#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)] +#[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] #[derive(TypeVisitable, TypeFoldable)] pub enum ObligationCauseCode<'tcx> { /// Not well classified or should be obvious from the span. @@ -470,7 +470,7 @@ pub enum WellFormedLoc { }, } -#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)] +#[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] #[derive(TypeVisitable, TypeFoldable)] pub struct ImplDerivedObligationCause<'tcx> { pub derived: DerivedObligationCause<'tcx>, @@ -524,14 +524,7 @@ pub enum StatementAsExpression { NeedsBoxing, } -impl<'tcx> ty::Lift<'tcx> for StatementAsExpression { - type Lifted = StatementAsExpression; - fn lift_to_tcx(self, _tcx: TyCtxt<'tcx>) -> Option<StatementAsExpression> { - Some(self) - } -} - -#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)] +#[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] #[derive(TypeVisitable, TypeFoldable)] pub struct MatchExpressionArmCause<'tcx> { pub arm_block_id: Option<hir::HirId>, @@ -547,7 +540,7 @@ pub struct MatchExpressionArmCause<'tcx> { } #[derive(Copy, Clone, Debug, PartialEq, Eq)] -#[derive(Lift, TypeFoldable, TypeVisitable, HashStable, TyEncodable, TyDecodable)] +#[derive(TypeFoldable, TypeVisitable, HashStable, TyEncodable, TyDecodable)] pub struct IfExpressionCause<'tcx> { pub then_id: hir::HirId, pub else_id: hir::HirId, @@ -557,7 +550,7 @@ pub struct IfExpressionCause<'tcx> { pub opt_suggest_box_span: Option<Span>, } -#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)] +#[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] #[derive(TypeVisitable, TypeFoldable)] pub struct DerivedObligationCause<'tcx> { /// The trait predicate of the parent obligation that led to the @@ -570,7 +563,7 @@ pub struct DerivedObligationCause<'tcx> { pub parent_code: InternedObligationCauseCode<'tcx>, } -#[derive(Clone, Debug, TypeVisitable, Lift)] +#[derive(Clone, Debug, TypeVisitable)] pub enum SelectionError<'tcx> { /// The trait is not implemented. Unimplemented, @@ -593,7 +586,7 @@ pub enum SelectionError<'tcx> { OpaqueTypeAutoTraitLeakageUnknown(DefId), } -#[derive(Clone, Debug, TypeVisitable, Lift)] +#[derive(Clone, Debug, TypeVisitable)] pub struct SelectionOutputTypeParameterMismatch<'tcx> { pub found_trait_ref: ty::PolyTraitRef<'tcx>, pub expected_trait_ref: ty::PolyTraitRef<'tcx>, @@ -638,7 +631,7 @@ pub type SelectionResult<'tcx, T> = Result<Option<T>, SelectionError<'tcx>>; /// ### The type parameter `N` /// /// See explanation on `ImplSourceUserDefinedData`. -#[derive(Clone, PartialEq, Eq, TyEncodable, TyDecodable, HashStable, Lift)] +#[derive(Clone, PartialEq, Eq, TyEncodable, TyDecodable, HashStable)] #[derive(TypeFoldable, TypeVisitable)] pub enum ImplSource<'tcx, N> { /// ImplSource identifying a particular impl. @@ -704,7 +697,7 @@ impl<'tcx, N> ImplSource<'tcx, N> { /// is `Obligation`, as one might expect. During codegen, however, this /// is `()`, because codegen only requires a shallow resolution of an /// impl, and nested obligations are satisfied later. -#[derive(Clone, PartialEq, Eq, TyEncodable, TyDecodable, HashStable, Lift)] +#[derive(Clone, PartialEq, Eq, TyEncodable, TyDecodable, HashStable)] #[derive(TypeFoldable, TypeVisitable)] pub struct ImplSourceUserDefinedData<'tcx, N> { pub impl_def_id: DefId, @@ -736,7 +729,7 @@ pub enum BuiltinImplSource { TupleUnsizing, } -TrivialTypeTraversalAndLiftImpls! { BuiltinImplSource } +TrivialTypeTraversalImpls! { BuiltinImplSource } #[derive(Clone, Debug, PartialEq, Eq, Hash, HashStable, PartialOrd, Ord)] pub enum ObjectSafetyViolation { diff --git a/compiler/rustc_middle/src/traits/query.rs b/compiler/rustc_middle/src/traits/query.rs index 950a59e9695..975e3e3ac62 100644 --- a/compiler/rustc_middle/src/traits/query.rs +++ b/compiler/rustc_middle/src/traits/query.rs @@ -17,8 +17,7 @@ pub mod type_op { use crate::ty::{Predicate, Ty, TyCtxt, UserType}; use std::fmt; - #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, Lift)] - #[derive(TypeFoldable, TypeVisitable)] + #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, TypeFoldable, TypeVisitable)] pub struct AscribeUserType<'tcx> { pub mir_ty: Ty<'tcx>, pub user_ty: UserType<'tcx>, @@ -30,22 +29,19 @@ pub mod type_op { } } - #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, Lift)] - #[derive(TypeFoldable, TypeVisitable)] + #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, TypeFoldable, TypeVisitable)] pub struct Eq<'tcx> { pub a: Ty<'tcx>, pub b: Ty<'tcx>, } - #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, Lift)] - #[derive(TypeFoldable, TypeVisitable)] + #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, TypeFoldable, TypeVisitable)] pub struct Subtype<'tcx> { pub sub: Ty<'tcx>, pub sup: Ty<'tcx>, } - #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, Lift)] - #[derive(TypeFoldable, TypeVisitable)] + #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, TypeFoldable, TypeVisitable)] pub struct ProvePredicate<'tcx> { pub predicate: Predicate<'tcx>, } @@ -56,8 +52,7 @@ pub mod type_op { } } - #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, Lift)] - #[derive(TypeFoldable, TypeVisitable)] + #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, HashStable, TypeFoldable, TypeVisitable)] pub struct Normalize<T> { pub value: T, } @@ -101,7 +96,7 @@ impl<'tcx> From<TypeError<'tcx>> for NoSolution { } } -#[derive(Clone, Debug, Default, HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(Clone, Debug, Default, HashStable, TypeFoldable, TypeVisitable)] pub struct DropckOutlivesResult<'tcx> { pub kinds: Vec<GenericArg<'tcx>>, pub overflows: Vec<Ty<'tcx>>, @@ -194,7 +189,7 @@ pub struct MethodAutoderefBadTy<'tcx> { } /// Result from the `normalize_projection_ty` query. -#[derive(Clone, Debug, HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(Clone, Debug, HashStable, TypeFoldable, TypeVisitable)] pub struct NormalizationResult<'tcx> { /// Result of normalization. pub normalized_ty: Ty<'tcx>, @@ -207,7 +202,7 @@ pub struct NormalizationResult<'tcx> { /// case they are called implied bounds). They are fed to the /// `OutlivesEnv` which in turn is supplied to the region checker and /// other parts of the inference system. -#[derive(Clone, Debug, TypeFoldable, TypeVisitable, Lift, HashStable)] +#[derive(Clone, Debug, TypeFoldable, TypeVisitable, HashStable)] pub enum OutlivesBound<'tcx> { RegionSubRegion(ty::Region<'tcx>, ty::Region<'tcx>), RegionSubParam(ty::Region<'tcx>, ty::ParamTy), diff --git a/compiler/rustc_middle/src/traits/select.rs b/compiler/rustc_middle/src/traits/select.rs index ffae3579889..90bc5dd8f69 100644 --- a/compiler/rustc_middle/src/traits/select.rs +++ b/compiler/rustc_middle/src/traits/select.rs @@ -305,7 +305,7 @@ impl From<ErrorGuaranteed> for OverflowError { } } -TrivialTypeTraversalAndLiftImpls! { OverflowError } +TrivialTypeTraversalImpls! { OverflowError } impl<'tcx> From<OverflowError> for SelectionError<'tcx> { fn from(overflow_error: OverflowError) -> SelectionError<'tcx> { diff --git a/compiler/rustc_middle/src/traits/solve/inspect.rs b/compiler/rustc_middle/src/traits/solve/inspect.rs index d8b3a061b77..c3ed40867cf 100644 --- a/compiler/rustc_middle/src/traits/solve/inspect.rs +++ b/compiler/rustc_middle/src/traits/solve/inspect.rs @@ -15,9 +15,15 @@ pub enum CacheHit { } #[derive(Eq, PartialEq)] +pub enum GoalEvaluationKind { + Root, + Nested { is_normalizes_to_hack: IsNormalizesToHack }, +} + +#[derive(Eq, PartialEq)] pub struct GoalEvaluation<'tcx> { pub uncanonicalized_goal: Goal<'tcx, ty::Predicate<'tcx>>, - pub is_normalizes_to_hack: IsNormalizesToHack, + pub kind: GoalEvaluationKind, pub evaluation: CanonicalGoalEvaluation<'tcx>, pub returned_goals: Vec<Goal<'tcx, ty::Predicate<'tcx>>>, } @@ -25,12 +31,12 @@ pub struct GoalEvaluation<'tcx> { #[derive(Eq, PartialEq)] pub struct CanonicalGoalEvaluation<'tcx> { pub goal: CanonicalInput<'tcx>, - pub kind: GoalEvaluationKind<'tcx>, + pub kind: CanonicalGoalEvaluationKind<'tcx>, pub result: QueryResult<'tcx>, } #[derive(Eq, PartialEq)] -pub enum GoalEvaluationKind<'tcx> { +pub enum CanonicalGoalEvaluationKind<'tcx> { Overflow, CacheHit(CacheHit), Uncached { revisions: Vec<GoalEvaluationStep<'tcx>> }, @@ -52,22 +58,31 @@ pub struct GoalEvaluationStep<'tcx> { pub instantiated_goal: QueryInput<'tcx, ty::Predicate<'tcx>>, /// The actual evaluation of the goal, always `ProbeKind::Root`. - pub evaluation: GoalCandidate<'tcx>, + pub evaluation: Probe<'tcx>, } +/// A self-contained computation during trait solving. This either +/// corresponds to a `EvalCtxt::probe(_X)` call or the root evaluation +/// of a goal. #[derive(Eq, PartialEq)] -pub struct GoalCandidate<'tcx> { - pub added_goals_evaluations: Vec<AddedGoalsEvaluation<'tcx>>, - pub candidates: Vec<GoalCandidate<'tcx>>, +pub struct Probe<'tcx> { + pub steps: Vec<ProbeStep<'tcx>>, pub kind: ProbeKind<'tcx>, } -impl Debug for GoalCandidate<'_> { +impl Debug for Probe<'_> { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { - ProofTreeFormatter::new(f).format_candidate(self) + ProofTreeFormatter::new(f).format_probe(self) } } +#[derive(Eq, PartialEq)] +pub enum ProbeStep<'tcx> { + AddGoal(Goal<'tcx, ty::Predicate<'tcx>>), + EvaluateGoals(AddedGoalsEvaluation<'tcx>), + NestedProbe(Probe<'tcx>), +} + #[derive(Debug, PartialEq, Eq)] pub enum ProbeKind<'tcx> { /// The root inference context while proving a goal. diff --git a/compiler/rustc_middle/src/traits/solve/inspect/format.rs b/compiler/rustc_middle/src/traits/solve/inspect/format.rs index d916e80a625..d33e83ae1ed 100644 --- a/compiler/rustc_middle/src/traits/solve/inspect/format.rs +++ b/compiler/rustc_middle/src/traits/solve/inspect/format.rs @@ -40,9 +40,12 @@ impl<'a, 'b> ProofTreeFormatter<'a, 'b> { } pub(super) fn format_goal_evaluation(&mut self, eval: &GoalEvaluation<'_>) -> std::fmt::Result { - let goal_text = match eval.is_normalizes_to_hack { - IsNormalizesToHack::Yes => "NORMALIZES-TO HACK GOAL", - IsNormalizesToHack::No => "GOAL", + let goal_text = match eval.kind { + GoalEvaluationKind::Root => "ROOT GOAL", + GoalEvaluationKind::Nested { is_normalizes_to_hack } => match is_normalizes_to_hack { + IsNormalizesToHack::No => "GOAL", + IsNormalizesToHack::Yes => "NORMALIZES-TO HACK GOAL", + }, }; writeln!(self.f, "{}: {:?}", goal_text, eval.uncanonicalized_goal)?; self.nested(|this| this.format_canonical_goal_evaluation(&eval.evaluation))?; @@ -68,16 +71,16 @@ impl<'a, 'b> ProofTreeFormatter<'a, 'b> { writeln!(self.f, "GOAL: {:?}", eval.goal)?; match &eval.kind { - GoalEvaluationKind::Overflow => { + CanonicalGoalEvaluationKind::Overflow => { writeln!(self.f, "OVERFLOW: {:?}", eval.result) } - GoalEvaluationKind::CacheHit(CacheHit::Global) => { + CanonicalGoalEvaluationKind::CacheHit(CacheHit::Global) => { writeln!(self.f, "GLOBAL CACHE HIT: {:?}", eval.result) } - GoalEvaluationKind::CacheHit(CacheHit::Provisional) => { + CanonicalGoalEvaluationKind::CacheHit(CacheHit::Provisional) => { writeln!(self.f, "PROVISIONAL CACHE HIT: {:?}", eval.result) } - GoalEvaluationKind::Uncached { revisions } => { + CanonicalGoalEvaluationKind::Uncached { revisions } => { for (n, step) in revisions.iter().enumerate() { writeln!(self.f, "REVISION {n}")?; self.nested(|this| this.format_evaluation_step(step))?; @@ -92,11 +95,11 @@ impl<'a, 'b> ProofTreeFormatter<'a, 'b> { evaluation_step: &GoalEvaluationStep<'_>, ) -> std::fmt::Result { writeln!(self.f, "INSTANTIATED: {:?}", evaluation_step.instantiated_goal)?; - self.format_candidate(&evaluation_step.evaluation) + self.format_probe(&evaluation_step.evaluation) } - pub(super) fn format_candidate(&mut self, candidate: &GoalCandidate<'_>) -> std::fmt::Result { - match &candidate.kind { + pub(super) fn format_probe(&mut self, probe: &Probe<'_>) -> std::fmt::Result { + match &probe.kind { ProbeKind::Root { result } => { writeln!(self.f, "ROOT RESULT: {result:?}") } @@ -118,11 +121,12 @@ impl<'a, 'b> ProofTreeFormatter<'a, 'b> { }?; self.nested(|this| { - for candidate in &candidate.candidates { - this.format_candidate(candidate)?; - } - for nested in &candidate.added_goals_evaluations { - this.format_added_goals_evaluation(nested)?; + for step in &probe.steps { + match step { + ProbeStep::AddGoal(goal) => writeln!(this.f, "ADDED GOAL: {goal:?}")?, + ProbeStep::EvaluateGoals(eval) => this.format_added_goals_evaluation(eval)?, + ProbeStep::NestedProbe(probe) => this.format_probe(probe)?, + } } Ok(()) }) diff --git a/compiler/rustc_middle/src/ty/abstract_const.rs b/compiler/rustc_middle/src/ty/abstract_const.rs index cdd8351499b..570f896ba29 100644 --- a/compiler/rustc_middle/src/ty/abstract_const.rs +++ b/compiler/rustc_middle/src/ty/abstract_const.rs @@ -27,7 +27,7 @@ impl From<ErrorGuaranteed> for NotConstEvaluatable { } } -TrivialTypeTraversalAndLiftImpls! { NotConstEvaluatable } +TrivialTypeTraversalImpls! { NotConstEvaluatable } pub type BoundAbstractConst<'tcx> = Result<Option<EarlyBinder<ty::Const<'tcx>>>, ErrorGuaranteed>; diff --git a/compiler/rustc_middle/src/ty/adjustment.rs b/compiler/rustc_middle/src/ty/adjustment.rs index 76931ceaa69..c3e8991c63a 100644 --- a/compiler/rustc_middle/src/ty/adjustment.rs +++ b/compiler/rustc_middle/src/ty/adjustment.rs @@ -76,7 +76,7 @@ pub enum PointerCoercion { /// At some point, of course, `Box` should move out of the compiler, in which /// case this is analogous to transforming a struct. E.g., `Box<[i32; 4]>` -> /// `Box<[i32]>` is an `Adjust::Unsize` with the target `Box<[i32]>`. -#[derive(Clone, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(Clone, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable)] pub struct Adjustment<'tcx> { pub kind: Adjust<'tcx>, pub target: Ty<'tcx>, @@ -88,7 +88,7 @@ impl<'tcx> Adjustment<'tcx> { } } -#[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable)] pub enum Adjust<'tcx> { /// Go from ! to any type. NeverToAny, @@ -110,7 +110,7 @@ pub enum Adjust<'tcx> { /// The target type is `U` in both cases, with the region and mutability /// being those shared by both the receiver and the returned reference. #[derive(Copy, Clone, PartialEq, Debug, TyEncodable, TyDecodable, HashStable)] -#[derive(TypeFoldable, TypeVisitable, Lift)] +#[derive(TypeFoldable, TypeVisitable)] pub struct OverloadedDeref<'tcx> { pub region: ty::Region<'tcx>, pub mutbl: hir::Mutability, @@ -182,7 +182,7 @@ impl From<AutoBorrowMutability> for hir::Mutability { } #[derive(Copy, Clone, PartialEq, Debug, TyEncodable, TyDecodable, HashStable)] -#[derive(TypeFoldable, TypeVisitable, Lift)] +#[derive(TypeFoldable, TypeVisitable)] pub enum AutoBorrow<'tcx> { /// Converts from T to &T. Ref(ty::Region<'tcx>, AutoBorrowMutability), diff --git a/compiler/rustc_middle/src/ty/binding.rs b/compiler/rustc_middle/src/ty/binding.rs index 2fec8ac9095..af594bc5f24 100644 --- a/compiler/rustc_middle/src/ty/binding.rs +++ b/compiler/rustc_middle/src/ty/binding.rs @@ -6,7 +6,7 @@ pub enum BindingMode { BindByValue(Mutability), } -TrivialTypeTraversalAndLiftImpls! { BindingMode } +TrivialTypeTraversalImpls! { BindingMode } impl BindingMode { pub fn convert(BindingAnnotation(by_ref, mutbl): BindingAnnotation) -> BindingMode { diff --git a/compiler/rustc_middle/src/ty/consts/kind.rs b/compiler/rustc_middle/src/ty/consts/kind.rs index e25402fe0c2..749b54ca0be 100644 --- a/compiler/rustc_middle/src/ty/consts/kind.rs +++ b/compiler/rustc_middle/src/ty/consts/kind.rs @@ -8,7 +8,7 @@ use rustc_hir::def_id::DefId; use rustc_macros::HashStable; /// An unevaluated (potentially generic) constant used in the type-system. -#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, TyEncodable, TyDecodable, Lift)] +#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, TyEncodable, TyDecodable)] #[derive(Hash, HashStable, TypeFoldable, TypeVisitable)] pub struct UnevaluatedConst<'tcx> { pub def: DefId, diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index fcb1a6971e9..e8d50a1c025 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -50,7 +50,7 @@ use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, LOCAL_CRATE}; use rustc_hir::definitions::Definitions; use rustc_hir::intravisit::Visitor; use rustc_hir::lang_items::LangItem; -use rustc_hir::{Constness, HirId, Node, TraitCandidate}; +use rustc_hir::{HirId, Node, TraitCandidate}; use rustc_index::IndexVec; use rustc_macros::HashStable; use rustc_query_system::dep_graph::DepNodeIndex; @@ -1275,19 +1275,13 @@ nop_lift! {predicate; Clause<'a> => Clause<'tcx>} nop_list_lift! {type_lists; Ty<'a> => Ty<'tcx>} nop_list_lift! {poly_existential_predicates; PolyExistentialPredicate<'a> => PolyExistentialPredicate<'tcx>} -nop_list_lift! {clauses; Clause<'a> => Clause<'tcx>} -nop_list_lift! {canonical_var_infos; CanonicalVarInfo<'a> => CanonicalVarInfo<'tcx>} -nop_list_lift! {projs; ProjectionKind => ProjectionKind} nop_list_lift! {bound_variable_kinds; ty::BoundVariableKind => ty::BoundVariableKind} // This is the impl for `&'a GenericArgs<'a>`. nop_list_lift! {args; GenericArg<'a> => GenericArg<'tcx>} -CloneLiftImpls! { - Constness, - traits::WellFormedLoc, +TrivialLiftImpls! { ImplPolarity, - crate::mir::ReturnConstraint, } macro_rules! sty_debug_print { diff --git a/compiler/rustc_middle/src/ty/error.rs b/compiler/rustc_middle/src/ty/error.rs index bf6f082c21c..f939d466078 100644 --- a/compiler/rustc_middle/src/ty/error.rs +++ b/compiler/rustc_middle/src/ty/error.rs @@ -11,7 +11,7 @@ use std::collections::hash_map::DefaultHasher; use std::hash::{Hash, Hasher}; use std::path::PathBuf; -#[derive(Clone, Copy, Debug, PartialEq, Eq, TypeFoldable, TypeVisitable, Lift)] +#[derive(Clone, Copy, Debug, PartialEq, Eq, TypeFoldable, TypeVisitable)] pub struct ExpectedFound<T> { pub expected: T, pub found: T, @@ -28,7 +28,7 @@ impl<T> ExpectedFound<T> { } // Data structures used in type unification -#[derive(Copy, Clone, Debug, TypeVisitable, Lift, PartialEq, Eq)] +#[derive(Copy, Clone, Debug, TypeVisitable, PartialEq, Eq)] #[rustc_pass_by_value] pub enum TypeError<'tcx> { Mismatch, diff --git a/compiler/rustc_middle/src/ty/generic_args.rs b/compiler/rustc_middle/src/ty/generic_args.rs index e598ead791e..72390e4bbb0 100644 --- a/compiler/rustc_middle/src/ty/generic_args.rs +++ b/compiler/rustc_middle/src/ty/generic_args.rs @@ -1029,7 +1029,7 @@ impl<'a, 'tcx> ArgFolder<'a, 'tcx> { /// Stores the user-given args to reach some fully qualified path /// (e.g., `<T>::Item` or `<T as Trait>::Item`). #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable)] -#[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(HashStable, TypeFoldable, TypeVisitable)] pub struct UserArgs<'tcx> { /// The args for the item as given by the user. pub args: GenericArgsRef<'tcx>, @@ -1056,7 +1056,7 @@ pub struct UserArgs<'tcx> { /// the self type, giving `Foo<?A>`. Finally, we unify that with /// the self type here, which contains `?A` to be `&'static u32` #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable)] -#[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(HashStable, TypeFoldable, TypeVisitable)] pub struct UserSelfTy<'tcx> { pub impl_def_id: DefId, pub self_ty: Ty<'tcx>, diff --git a/compiler/rustc_middle/src/ty/instance.rs b/compiler/rustc_middle/src/ty/instance.rs index e5b9203d12a..2b75f6c4e8f 100644 --- a/compiler/rustc_middle/src/ty/instance.rs +++ b/compiler/rustc_middle/src/ty/instance.rs @@ -18,6 +18,9 @@ use std::fmt; /// Monomorphization happens on-the-fly and no monomorphized MIR is ever created. Instead, this type /// simply couples a potentially generic `InstanceDef` with some args, and codegen and const eval /// will do all required substitution as they run. +/// +/// Note: the `Lift` impl is currently not used by rustc, but is used by +/// rustc_codegen_cranelift when the `jit` feature is enabled. #[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, TyEncodable, TyDecodable)] #[derive(HashStable, Lift, TypeFoldable, TypeVisitable)] pub struct Instance<'tcx> { diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index 99b697d0ea5..eb8ea0bc114 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -1510,7 +1510,7 @@ impl<'a, 'tcx> IntoIterator for &'a InstantiatedPredicates<'tcx> { } } -#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, HashStable, TyEncodable, TyDecodable, Lift)] +#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, HashStable, TyEncodable, TyDecodable)] #[derive(TypeFoldable, TypeVisitable)] pub struct OpaqueTypeKey<'tcx> { pub def_id: LocalDefId, @@ -1793,7 +1793,7 @@ impl<'tcx> ParamEnv<'tcx> { } #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TypeFoldable, TypeVisitable)] -#[derive(HashStable, Lift)] +#[derive(HashStable)] pub struct ParamEnvAnd<'tcx, T> { pub param_env: ParamEnv<'tcx>, pub value: T, @@ -2408,6 +2408,22 @@ impl<'tcx> TyCtxt<'tcx> { } } + pub fn get_attrs_by_path<'attr>( + self, + did: DefId, + attr: &'attr [Symbol], + ) -> impl Iterator<Item = &'tcx ast::Attribute> + 'attr + where + 'tcx: 'attr, + { + let filter_fn = move |a: &&ast::Attribute| a.path_matches(&attr); + if let Some(did) = did.as_local() { + self.hir().attrs(self.hir().local_def_id_to_hir_id(did)).iter().filter(filter_fn) + } else { + self.item_attrs(did).iter().filter(filter_fn) + } + } + pub fn get_attr(self, did: impl Into<DefId>, attr: Symbol) -> Option<&'tcx ast::Attribute> { if cfg!(debug_assertions) && !rustc_feature::is_valid_for_get_attr(attr) { let did: DefId = did.into(); diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index f24ac79323f..e1d4e43841d 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -136,10 +136,8 @@ define_helper!( /// /// Regions not selected by the region highlight mode are presently /// unaffected. -#[derive(Copy, Clone)] +#[derive(Copy, Clone, Default)] pub struct RegionHighlightMode<'tcx> { - tcx: TyCtxt<'tcx>, - /// If enabled, when we see the selected region, use "`'N`" /// instead of the ordinary behavior. highlight_regions: [Option<(ty::Region<'tcx>, usize)>; 3], @@ -155,14 +153,6 @@ pub struct RegionHighlightMode<'tcx> { } impl<'tcx> RegionHighlightMode<'tcx> { - pub fn new(tcx: TyCtxt<'tcx>) -> Self { - Self { - tcx, - highlight_regions: Default::default(), - highlight_bound_region: Default::default(), - } - } - /// If `region` and `number` are both `Some`, invokes /// `highlighting_region`. pub fn maybe_highlighting_region( @@ -188,8 +178,13 @@ impl<'tcx> RegionHighlightMode<'tcx> { } /// Convenience wrapper for `highlighting_region`. - pub fn highlighting_region_vid(&mut self, vid: ty::RegionVid, number: usize) { - self.highlighting_region(ty::Region::new_var(self.tcx, vid), number) + pub fn highlighting_region_vid( + &mut self, + tcx: TyCtxt<'tcx>, + vid: ty::RegionVid, + number: usize, + ) { + self.highlighting_region(ty::Region::new_var(tcx, vid), number) } /// Returns `Some(n)` with the number to use for the given region, if any. @@ -1778,7 +1773,7 @@ impl<'a, 'tcx> FmtPrinter<'a, 'tcx> { printed_type_count: 0, type_length_limit, truncated: false, - region_highlight_mode: RegionHighlightMode::new(tcx), + region_highlight_mode: RegionHighlightMode::default(), ty_infer_name_resolver: None, const_infer_name_resolver: None, })) @@ -2746,20 +2741,14 @@ forward_display_to_print! { // HACK(eddyb) these are exhaustive instead of generic, // because `for<'tcx>` isn't possible yet. - ty::PolyExistentialPredicate<'tcx>, ty::PolyExistentialProjection<'tcx>, ty::PolyExistentialTraitRef<'tcx>, ty::Binder<'tcx, ty::TraitRef<'tcx>>, ty::Binder<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, - ty::Binder<'tcx, TraitRefPrintOnlyTraitName<'tcx>>, ty::Binder<'tcx, ty::FnSig<'tcx>>, ty::Binder<'tcx, ty::TraitPredicate<'tcx>>, ty::Binder<'tcx, TraitPredPrintModifiersAndPath<'tcx>>, - ty::Binder<'tcx, ty::SubtypePredicate<'tcx>>, ty::Binder<'tcx, ty::ProjectionPredicate<'tcx>>, - ty::Binder<'tcx, ty::OutlivesPredicate<Ty<'tcx>, ty::Region<'tcx>>>, - ty::Binder<'tcx, ty::OutlivesPredicate<ty::Region<'tcx>, ty::Region<'tcx>>>, - ty::OutlivesPredicate<Ty<'tcx>, ty::Region<'tcx>>, ty::OutlivesPredicate<ty::Region<'tcx>, ty::Region<'tcx>> } diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 1b29a83f23e..f4158597d10 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -9,15 +9,13 @@ use crate::ty::print::{with_no_trimmed_paths, FmtPrinter, Printer}; use crate::ty::visit::{TypeSuperVisitable, TypeVisitable, TypeVisitor}; use crate::ty::{self, AliasTy, InferConst, Lift, Term, TermKind, Ty, TyCtxt}; use rustc_hir::def::Namespace; -use rustc_index::{Idx, IndexVec}; use rustc_target::abi::TyAndLayout; use rustc_type_ir::{ConstKind, DebugWithInfcx, InferCtxtLike, OptWithInfcx}; use std::fmt::{self, Debug}; use std::ops::ControlFlow; -use std::rc::Rc; -use std::sync::Arc; +use super::print::PrettyPrinter; use super::{GenericArg, GenericArgKind, Region}; impl fmt::Debug for ty::TraitDef { @@ -343,14 +341,27 @@ impl<'tcx> DebugWithInfcx<TyCtxt<'tcx>> for ty::Const<'tcx> { this: OptWithInfcx<'_, TyCtxt<'tcx>, InfCtx, &Self>, f: &mut core::fmt::Formatter<'_>, ) -> core::fmt::Result { - // This reflects what `Const` looked liked before `Interned` was - // introduced. We print it like this to avoid having to update expected - // output in a lot of tests. + // If this is a value, we spend some effort to make it look nice. + if let ConstKind::Value(_) = this.data.kind() { + return ty::tls::with(move |tcx| { + // Somehow trying to lift the valtree results in lifetime errors, so we lift the + // entire constant. + let lifted = tcx.lift(*this.data).unwrap(); + let ConstKind::Value(valtree) = lifted.kind() else { + bug!("we checked that this is a valtree") + }; + let cx = FmtPrinter::new(tcx, Namespace::ValueNS); + let cx = + cx.pretty_print_const_valtree(valtree, lifted.ty(), /*print_ty*/ true)?; + f.write_str(&cx.into_buffer()) + }); + } + // Fall back to something verbose. write!( f, - "Const {{ ty: {:?}, kind: {:?} }}", - &this.map(|data| data.ty()), - &this.map(|data| data.kind()) + "{kind:?}: {ty:?}", + ty = &this.map(|data| data.ty()), + kind = &this.map(|data| data.kind()) ) } } @@ -442,22 +453,16 @@ impl<'tcx, T: DebugWithInfcx<TyCtxt<'tcx>>> DebugWithInfcx<TyCtxt<'tcx>> for ty: // For things for which the type library provides traversal implementations // for all Interners, we only need to provide a Lift implementation: -CloneLiftImpls! { - (), - bool, - usize, - u16, - u32, - u64, - String, - rustc_type_ir::DebruijnIndex, -} - -// For things about which the type library does not know, or does not -// provide any traversal implementations, we need to provide both a Lift -// implementation and traversal implementations (the latter only for -// TyCtxt<'_> interners). -TrivialTypeTraversalAndLiftImpls! { +TrivialLiftImpls! { + (), + bool, + usize, +} + +// For some things about which the type library does not know, or does not +// provide any traversal implementations, we need to provide a traversal +// implementation (only for TyCtxt<'_> interners). +TrivialTypeTraversalImpls! { ::rustc_target::abi::FieldIdx, ::rustc_target::abi::VariantIdx, crate::middle::region::Scope, @@ -467,14 +472,10 @@ TrivialTypeTraversalAndLiftImpls! { ::rustc_ast::NodeId, ::rustc_span::symbol::Symbol, ::rustc_hir::def::Res, - ::rustc_hir::def_id::DefId, ::rustc_hir::def_id::LocalDefId, ::rustc_hir::HirId, ::rustc_hir::MatchSource, - ::rustc_hir::Mutability, - ::rustc_hir::Unsafety, ::rustc_target::asm::InlineAsmRegOrRegClass, - ::rustc_target::spec::abi::Abi, crate::mir::coverage::CounterId, crate::mir::coverage::ExpressionId, crate::mir::coverage::MappedExpressionIndex, @@ -492,16 +493,12 @@ TrivialTypeTraversalAndLiftImpls! { crate::ty::AssocItem, crate::ty::AssocKind, crate::ty::AliasKind, - crate::ty::AliasRelationDirection, crate::ty::Placeholder<crate::ty::BoundRegion>, crate::ty::Placeholder<crate::ty::BoundTy>, crate::ty::Placeholder<ty::BoundVar>, - crate::ty::ClosureKind, crate::ty::FreeRegion, crate::ty::InferTy, crate::ty::IntVarValue, - crate::ty::ParamConst, - crate::ty::ParamTy, crate::ty::adjustment::PointerCoercion, crate::ty::RegionVid, crate::ty::UniverseIndex, @@ -509,33 +506,30 @@ TrivialTypeTraversalAndLiftImpls! { ::rustc_span::Span, ::rustc_span::symbol::Ident, ::rustc_errors::ErrorGuaranteed, - interpret::Scalar, - interpret::AllocId, - rustc_target::abi::Size, ty::BoundVar, + ty::ValTree<'tcx>, } - +// For some things about which the type library does not know, or does not +// provide any traversal implementations, we need to provide a traversal +// implementation and a lift implementation (the former only for TyCtxt<'_> +// interners). TrivialTypeTraversalAndLiftImpls! { - ty::ValTree<'tcx>, + ::rustc_hir::def_id::DefId, + ::rustc_hir::Mutability, + ::rustc_hir::Unsafety, + ::rustc_target::spec::abi::Abi, + crate::ty::AliasRelationDirection, + crate::ty::ClosureKind, + crate::ty::ParamConst, + crate::ty::ParamTy, + interpret::Scalar, + interpret::AllocId, + rustc_target::abi::Size, } /////////////////////////////////////////////////////////////////////////// // Lift implementations -impl<'tcx, A: Lift<'tcx>, B: Lift<'tcx>> Lift<'tcx> for (A, B) { - type Lifted = (A::Lifted, B::Lifted); - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - Some((tcx.lift(self.0)?, tcx.lift(self.1)?)) - } -} - -impl<'tcx, A: Lift<'tcx>, B: Lift<'tcx>, C: Lift<'tcx>> Lift<'tcx> for (A, B, C) { - type Lifted = (A::Lifted, B::Lifted, C::Lifted); - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - Some((tcx.lift(self.0)?, tcx.lift(self.1)?, tcx.lift(self.2)?)) - } -} - impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Option<T> { type Lifted = Option<T::Lifted>; fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { @@ -546,50 +540,6 @@ impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Option<T> { } } -impl<'tcx, T: Lift<'tcx>, E: Lift<'tcx>> Lift<'tcx> for Result<T, E> { - type Lifted = Result<T::Lifted, E::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - match self { - Ok(x) => tcx.lift(x).map(Ok), - Err(e) => tcx.lift(e).map(Err), - } - } -} - -impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Box<T> { - type Lifted = Box<T::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - Some(Box::new(tcx.lift(*self)?)) - } -} - -impl<'tcx, T: Lift<'tcx> + Clone> Lift<'tcx> for Rc<T> { - type Lifted = Rc<T::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - Some(Rc::new(tcx.lift(self.as_ref().clone())?)) - } -} - -impl<'tcx, T: Lift<'tcx> + Clone> Lift<'tcx> for Arc<T> { - type Lifted = Arc<T::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - Some(Arc::new(tcx.lift(self.as_ref().clone())?)) - } -} -impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Vec<T> { - type Lifted = Vec<T::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - self.into_iter().map(|v| tcx.lift(v)).collect() - } -} - -impl<'tcx, I: Idx, T: Lift<'tcx>> Lift<'tcx> for IndexVec<I, T> { - type Lifted = IndexVec<I, T::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - self.into_iter().map(|e| tcx.lift(e)).collect() - } -} - impl<'a, 'tcx> Lift<'tcx> for Term<'a> { type Lifted = ty::Term<'tcx>; fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { @@ -602,13 +552,6 @@ impl<'a, 'tcx> Lift<'tcx> for Term<'a> { ) } } -impl<'a, 'tcx> Lift<'tcx> for ty::ParamEnv<'a> { - type Lifted = ty::ParamEnv<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.caller_bounds()) - .map(|caller_bounds| ty::ParamEnv::new(caller_bounds, self.reveal())) - } -} /////////////////////////////////////////////////////////////////////////// // Traversal implementations. diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 2502e303f7a..edab7fe58ba 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -351,7 +351,7 @@ impl<'tcx> ClosureArgs<'tcx> { } /// Similar to `ClosureArgs`; see the above documentation for more. -#[derive(Copy, Clone, PartialEq, Eq, Debug, TypeFoldable, TypeVisitable, Lift)] +#[derive(Copy, Clone, PartialEq, Eq, Debug, TypeFoldable, TypeVisitable)] pub struct GeneratorArgs<'tcx> { pub args: GenericArgsRef<'tcx>, } @@ -1305,7 +1305,7 @@ impl<'tcx> AliasTy<'tcx> { } } -#[derive(Copy, Clone, Debug, TypeFoldable, TypeVisitable, Lift)] +#[derive(Copy, Clone, Debug, TypeFoldable, TypeVisitable)] pub struct GenSig<'tcx> { pub resume_ty: Ty<'tcx>, pub yield_ty: Ty<'tcx>, diff --git a/compiler/rustc_middle/src/ty/typeck_results.rs b/compiler/rustc_middle/src/ty/typeck_results.rs index 159cbb72a3b..69c4c588c44 100644 --- a/compiler/rustc_middle/src/ty/typeck_results.rs +++ b/compiler/rustc_middle/src/ty/typeck_results.rs @@ -654,7 +654,7 @@ rustc_index::newtype_index! { pub type CanonicalUserTypeAnnotations<'tcx> = IndexVec<UserTypeAnnotationIndex, CanonicalUserTypeAnnotation<'tcx>>; -#[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable)] pub struct CanonicalUserTypeAnnotation<'tcx> { pub user_ty: Box<CanonicalUserType<'tcx>>, pub span: Span, @@ -714,7 +714,7 @@ impl<'tcx> CanonicalUserType<'tcx> { /// from constants that are named via paths, like `Foo::<A>::new` and /// so forth. #[derive(Copy, Clone, Debug, PartialEq, TyEncodable, TyDecodable)] -#[derive(Eq, Hash, HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(Eq, Hash, HashStable, TypeFoldable, TypeVisitable)] pub enum UserType<'tcx> { Ty(Ty<'tcx>), diff --git a/compiler/rustc_parse_format/src/lib.rs b/compiler/rustc_parse_format/src/lib.rs index a6c7eb8d912..90ac436a91f 100644 --- a/compiler/rustc_parse_format/src/lib.rs +++ b/compiler/rustc_parse_format/src/lib.rs @@ -210,7 +210,17 @@ pub struct ParseError { pub label: string::String, pub span: InnerSpan, pub secondary_label: Option<(string::String, InnerSpan)>, - pub should_be_replaced_with_positional_argument: bool, + pub suggestion: Suggestion, +} + +pub enum Suggestion { + None, + /// Replace inline argument with positional argument: + /// `format!("{foo.bar}")` -> `format!("{}", foo.bar)` + UsePositional, + /// Remove `r#` from identifier: + /// `format!("{r#foo}")` -> `format!("{foo}")` + RemoveRawIdent(InnerSpan), } /// The parser structure for interpreting the input format string. This is @@ -365,7 +375,7 @@ impl<'a> Parser<'a> { label: label.into(), span, secondary_label: None, - should_be_replaced_with_positional_argument: false, + suggestion: Suggestion::None, }); } @@ -389,7 +399,7 @@ impl<'a> Parser<'a> { label: label.into(), span, secondary_label: None, - should_be_replaced_with_positional_argument: false, + suggestion: Suggestion::None, }); } @@ -493,7 +503,7 @@ impl<'a> Parser<'a> { label, span: pos.to(pos), secondary_label, - should_be_replaced_with_positional_argument: false, + suggestion: Suggestion::None, }); None @@ -573,7 +583,37 @@ impl<'a> Parser<'a> { Some(ArgumentIs(i)) } else { match self.cur.peek() { - Some(&(_, c)) if rustc_lexer::is_id_start(c) => Some(ArgumentNamed(self.word())), + Some(&(lo, c)) if rustc_lexer::is_id_start(c) => { + let word = self.word(); + + // Recover from `r#ident` in format strings. + // FIXME: use a let chain + if word == "r" { + if let Some((pos, '#')) = self.cur.peek() { + if self.input[pos + 1..] + .chars() + .next() + .is_some_and(rustc_lexer::is_id_start) + { + self.cur.next(); + let word = self.word(); + let prefix_span = self.span(lo, lo + 2); + let full_span = self.span(lo, lo + 2 + word.len()); + self.errors.insert(0, ParseError { + description: "raw identifiers are not supported".to_owned(), + note: Some("identifiers in format strings can be keywords and don't need to be prefixed with `r#`".to_string()), + label: "raw identifier used here".to_owned(), + span: full_span, + secondary_label: None, + suggestion: Suggestion::RemoveRawIdent(prefix_span), + }); + return Some(ArgumentNamed(word)); + } + } + } + + Some(ArgumentNamed(word)) + } // This is an `ArgumentNext`. // Record the fact and do the resolution after parsing the @@ -841,7 +881,7 @@ impl<'a> Parser<'a> { label: "expected `?` to occur after `:`".to_owned(), span: pos.to(pos), secondary_label: None, - should_be_replaced_with_positional_argument: false, + suggestion: Suggestion::None, }, ); } @@ -867,7 +907,7 @@ impl<'a> Parser<'a> { label: "not supported".to_string(), span: InnerSpan::new(arg.position_span.start, field.position_span.end), secondary_label: None, - should_be_replaced_with_positional_argument: true, + suggestion: Suggestion::UsePositional, }, ); } diff --git a/compiler/rustc_passes/messages.ftl b/compiler/rustc_passes/messages.ftl index 56f4b387df8..4f8ce99417a 100644 --- a/compiler/rustc_passes/messages.ftl +++ b/compiler/rustc_passes/messages.ftl @@ -153,6 +153,9 @@ passes_deprecated_annotation_has_no_effect = passes_deprecated_attribute = deprecated attribute must be paired with either stable or unstable attribute +passes_diagnostic_diagnostic_on_unimplemented_only_for_traits = + `#[diagnostic::on_unimplemented]` can only be applied to trait definitions + passes_diagnostic_item_first_defined = the diagnostic item is first defined here diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index d10bc33db52..2d94354e3e1 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -16,6 +16,7 @@ use rustc_hir::{ self, FnSig, ForeignItem, HirId, Item, ItemKind, TraitItem, CRATE_HIR_ID, CRATE_OWNER_ID, }; use rustc_hir::{MethodKind, Target, Unsafety}; +use rustc_macros::LintDiagnostic; use rustc_middle::hir::nested_filter; use rustc_middle::middle::resolve_bound_vars::ObjectLifetimeDefault; use rustc_middle::query::Providers; @@ -24,7 +25,7 @@ use rustc_middle::ty::error::{ExpectedFound, TypeError}; use rustc_middle::ty::{self, TyCtxt}; use rustc_session::lint::builtin::{ CONFLICTING_REPR_HINTS, INVALID_DOC_ATTRIBUTES, INVALID_MACRO_EXPORT_ARGUMENTS, - UNUSED_ATTRIBUTES, + UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, UNUSED_ATTRIBUTES, }; use rustc_session::parse::feature_err; use rustc_span::symbol::{kw, sym, Symbol}; @@ -36,6 +37,10 @@ use rustc_trait_selection::traits::ObligationCtxt; use std::cell::Cell; use std::collections::hash_map::Entry; +#[derive(LintDiagnostic)] +#[diag(passes_diagnostic_diagnostic_on_unimplemented_only_for_traits)] +pub struct DiagnosticOnUnimplementedOnlyForTraits; + pub(crate) fn target_from_impl_item<'tcx>( tcx: TyCtxt<'tcx>, impl_item: &hir::ImplItem<'_>, @@ -104,6 +109,9 @@ impl CheckAttrVisitor<'_> { let mut seen = FxHashMap::default(); let attrs = self.tcx.hir().attrs(hir_id); for attr in attrs { + if attr.path_matches(&[sym::diagnostic, sym::on_unimplemented]) { + self.check_diagnostic_on_unimplemented(attr.span, hir_id, target); + } match attr.name_or_empty() { sym::do_not_recommend => self.check_do_not_recommend(attr.span, target), sym::inline => self.check_inline(hir_id, attr, span, target), @@ -287,6 +295,18 @@ impl CheckAttrVisitor<'_> { } } + /// Checks if `#[diagnostic::on_unimplemented]` is applied to a trait definition + fn check_diagnostic_on_unimplemented(&self, attr_span: Span, hir_id: HirId, target: Target) { + if !matches!(target, Target::Trait) { + self.tcx.emit_spanned_lint( + UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, + hir_id, + attr_span, + DiagnosticOnUnimplementedOnlyForTraits, + ); + } + } + /// Checks if an `#[inline]` is applied to a function or a closure. Returns `true` if valid. fn check_inline(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) -> bool { match target { diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index 82060716575..90ae08ce37c 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -26,7 +26,7 @@ use rustc_middle::middle::stability; use rustc_middle::ty::RegisteredTools; use rustc_middle::ty::{TyCtxt, Visibility}; use rustc_session::lint::builtin::{ - LEGACY_DERIVE_HELPERS, SOFT_UNSTABLE, UNKNOWN_DIAGNOSTIC_ATTRIBUTES, + LEGACY_DERIVE_HELPERS, SOFT_UNSTABLE, UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, }; use rustc_session::lint::builtin::{UNUSED_MACROS, UNUSED_MACRO_RULES}; use rustc_session::lint::BuiltinLintDiagnostics; @@ -610,9 +610,10 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { if res == Res::NonMacroAttr(NonMacroAttrKind::Tool) && path.segments.len() >= 2 && path.segments[0].ident.name == sym::diagnostic + && path.segments[1].ident.name != sym::on_unimplemented { self.tcx.sess.parse_sess.buffer_lint( - UNKNOWN_DIAGNOSTIC_ATTRIBUTES, + UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, path.segments[1].span(), node_id, "unknown diagnostic attribute", diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index ba82ee95caa..956ae149e55 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -898,6 +898,9 @@ impl OutFileName { #[derive(Clone, Hash, Debug, HashStable_Generic)] pub struct OutputFilenames { pub out_directory: PathBuf, + /// Crate name. Never contains '-'. + crate_stem: String, + /// Typically based on `.rs` input file name. Any '-' is preserved. filestem: String, pub single_output_file: Option<OutFileName>, pub temps_directory: Option<PathBuf>, @@ -911,6 +914,7 @@ pub const DWARF_OBJECT_EXT: &str = "dwo"; impl OutputFilenames { pub fn new( out_directory: PathBuf, + out_crate_name: String, out_filestem: String, single_output_file: Option<OutFileName>, temps_directory: Option<PathBuf>, @@ -922,6 +926,7 @@ impl OutputFilenames { single_output_file, temps_directory, outputs, + crate_stem: format!("{out_crate_name}{extra}"), filestem: format!("{out_filestem}{extra}"), } } @@ -938,7 +943,12 @@ impl OutputFilenames { /// should be placed on disk. pub fn output_path(&self, flavor: OutputType) -> PathBuf { let extension = flavor.extension(); - self.with_directory_and_extension(&self.out_directory, extension) + match flavor { + OutputType::Metadata => { + self.out_directory.join(format!("lib{}.{}", self.crate_stem, extension)) + } + _ => self.with_directory_and_extension(&self.out_directory, extension), + } } /// Gets the path where a compilation artifact of the given type for the diff --git a/compiler/rustc_session/src/output.rs b/compiler/rustc_session/src/output.rs index c0884fb21cd..7a57b0621cd 100644 --- a/compiler/rustc_session/src/output.rs +++ b/compiler/rustc_session/src/output.rs @@ -119,26 +119,11 @@ pub fn validate_crate_name(sess: &Session, s: Symbol, sp: Option<Span>) { } } -pub fn filename_for_metadata( - sess: &Session, - crate_name: Symbol, - outputs: &OutputFilenames, -) -> OutFileName { - // If the command-line specified the path, use that directly. - if let Some(Some(out_filename)) = sess.opts.output_types.get(&OutputType::Metadata) { - return out_filename.clone(); - } - - let libname = format!("{}{}", crate_name, sess.opts.cg.extra_filename); - - let out_filename = outputs.single_output_file.clone().unwrap_or_else(|| { - OutFileName::Real(outputs.out_directory.join(&format!("lib{libname}.rmeta"))) - }); - +pub fn filename_for_metadata(sess: &Session, outputs: &OutputFilenames) -> OutFileName { + let out_filename = outputs.path(OutputType::Metadata); if let OutFileName::Real(ref path) = out_filename { check_file_is_writeable(path, sess); } - out_filename } diff --git a/compiler/rustc_target/src/abi/call/mod.rs b/compiler/rustc_target/src/abi/call/mod.rs index 56547bfb426..5efd171b9dd 100644 --- a/compiler/rustc_target/src/abi/call/mod.rs +++ b/compiler/rustc_target/src/abi/call/mod.rs @@ -46,17 +46,17 @@ pub enum PassMode { /// /// The argument has a layout abi of `ScalarPair`. Pair(ArgAttributes, ArgAttributes), - /// Pass the argument after casting it, to either a single uniform or a - /// pair of registers. The bool indicates if a `Reg::i32()` dummy argument - /// is emitted before the real argument. - Cast(Box<CastTarget>, bool), + /// Pass the argument after casting it. See the `CastTarget` docs for details. The bool + /// indicates if a `Reg::i32()` dummy argument is emitted before the real argument. + Cast { pad_i32: bool, cast: Box<CastTarget> }, /// Pass the argument indirectly via a hidden pointer. - /// The `extra_attrs` value, if any, is for the extra data (vtable or length) - /// which indicates that it refers to an unsized rvalue. - /// `on_stack` defines that the value should be passed at a fixed - /// stack offset in accordance to the ABI rather than passed using a - /// pointer. This corresponds to the `byval` LLVM argument attribute. - Indirect { attrs: ArgAttributes, extra_attrs: Option<ArgAttributes>, on_stack: bool }, + /// The `meta_attrs` value, if any, is for the metadata (vtable or length) of an unsized + /// argument. (This is the only mode that supports unsized arguments.) + /// `on_stack` defines that the value should be passed at a fixed stack offset in accordance to + /// the ABI rather than passed using a pointer. This corresponds to the `byval` LLVM argument + /// attribute (using the Rust type of this argument). `on_stack` cannot be true for unsized + /// arguments, i.e., when `meta_attrs` is `Some`. + Indirect { attrs: ArgAttributes, meta_attrs: Option<ArgAttributes>, on_stack: bool }, } impl PassMode { @@ -65,17 +65,20 @@ impl PassMode { /// so that needs to be compared as well! pub fn eq_abi(&self, other: &Self) -> bool { match (self, other) { - (PassMode::Ignore, PassMode::Ignore) => true, // can still be reached for the return type + (PassMode::Ignore, PassMode::Ignore) => true, (PassMode::Direct(a1), PassMode::Direct(a2)) => a1.eq_abi(a2), (PassMode::Pair(a1, b1), PassMode::Pair(a2, b2)) => a1.eq_abi(a2) && b1.eq_abi(b2), - (PassMode::Cast(c1, pad1), PassMode::Cast(c2, pad2)) => c1.eq_abi(c2) && pad1 == pad2, ( - PassMode::Indirect { attrs: a1, extra_attrs: None, on_stack: s1 }, - PassMode::Indirect { attrs: a2, extra_attrs: None, on_stack: s2 }, + PassMode::Cast { cast: c1, pad_i32: pad1 }, + PassMode::Cast { cast: c2, pad_i32: pad2 }, + ) => c1.eq_abi(c2) && pad1 == pad2, + ( + PassMode::Indirect { attrs: a1, meta_attrs: None, on_stack: s1 }, + PassMode::Indirect { attrs: a2, meta_attrs: None, on_stack: s2 }, ) => a1.eq_abi(a2) && s1 == s2, ( - PassMode::Indirect { attrs: a1, extra_attrs: Some(e1), on_stack: s1 }, - PassMode::Indirect { attrs: a2, extra_attrs: Some(e2), on_stack: s2 }, + PassMode::Indirect { attrs: a1, meta_attrs: Some(e1), on_stack: s1 }, + PassMode::Indirect { attrs: a2, meta_attrs: Some(e2), on_stack: s2 }, ) => a1.eq_abi(a2) && e1.eq_abi(e2) && s1 == s2, _ => false, } @@ -256,6 +259,13 @@ impl Uniform { } } +/// Describes the type used for `PassMode::Cast`. +/// +/// Passing arguments in this mode works as follows: the registers in the `prefix` (the ones that +/// are `Some`) get laid out one after the other (using `repr(C)` layout rules). Then the +/// `rest.unit` register type gets repeated often enough to cover `rest.size`. This describes the +/// actual type used for the call; the Rust type of the argument is then transmuted to this ABI type +/// (and all data in the padding between the registers is dropped). #[derive(Clone, PartialEq, Eq, Hash, Debug, HashStable_Generic)] pub struct CastTarget { pub prefix: [Option<Reg>; 8], @@ -565,15 +575,15 @@ impl<'a, Ty> ArgAbi<'a, Ty> { attrs.pointee_size = layout.size; attrs.pointee_align = Some(layout.align.abi); - let extra_attrs = layout.is_unsized().then_some(ArgAttributes::new()); + let meta_attrs = layout.is_unsized().then_some(ArgAttributes::new()); - PassMode::Indirect { attrs, extra_attrs, on_stack: false } + PassMode::Indirect { attrs, meta_attrs, on_stack: false } } pub fn make_indirect(&mut self) { match self.mode { PassMode::Direct(_) | PassMode::Pair(_, _) => {} - PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: false } => return, + PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: false } => return, _ => panic!("Tried to make {:?} indirect", self.mode), } @@ -583,7 +593,7 @@ impl<'a, Ty> ArgAbi<'a, Ty> { pub fn make_indirect_byval(&mut self, byval_align: Option<Align>) { self.make_indirect(); match self.mode { - PassMode::Indirect { ref mut attrs, extra_attrs: _, ref mut on_stack } => { + PassMode::Indirect { ref mut attrs, meta_attrs: _, ref mut on_stack } => { *on_stack = true; // Some platforms, like 32-bit x86, change the alignment of the type when passing @@ -616,11 +626,11 @@ impl<'a, Ty> ArgAbi<'a, Ty> { } pub fn cast_to<T: Into<CastTarget>>(&mut self, target: T) { - self.mode = PassMode::Cast(Box::new(target.into()), false); + self.mode = PassMode::Cast { cast: Box::new(target.into()), pad_i32: false }; } pub fn cast_to_and_pad_i32<T: Into<CastTarget>>(&mut self, target: T, pad_i32: bool) { - self.mode = PassMode::Cast(Box::new(target.into()), pad_i32); + self.mode = PassMode::Cast { cast: Box::new(target.into()), pad_i32 }; } pub fn is_indirect(&self) -> bool { @@ -628,11 +638,11 @@ impl<'a, Ty> ArgAbi<'a, Ty> { } pub fn is_sized_indirect(&self) -> bool { - matches!(self.mode, PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: _ }) + matches!(self.mode, PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ }) } pub fn is_unsized_indirect(&self) -> bool { - matches!(self.mode, PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ }) + matches!(self.mode, PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ }) } pub fn is_ignore(&self) -> bool { diff --git a/compiler/rustc_target/src/abi/call/x86.rs b/compiler/rustc_target/src/abi/call/x86.rs index b738c3133d9..afa1b70efc2 100644 --- a/compiler/rustc_target/src/abi/call/x86.rs +++ b/compiler/rustc_target/src/abi/call/x86.rs @@ -142,13 +142,13 @@ where for arg in fn_abi.args.iter_mut() { let attrs = match arg.mode { PassMode::Ignore - | PassMode::Indirect { attrs: _, extra_attrs: None, on_stack: _ } => { + | PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ } => { continue; } PassMode::Direct(ref mut attrs) => attrs, PassMode::Pair(..) - | PassMode::Indirect { attrs: _, extra_attrs: Some(_), on_stack: _ } - | PassMode::Cast(..) => { + | PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } + | PassMode::Cast { .. } => { unreachable!("x86 shouldn't be passing arguments by {:?}", arg.mode) } }; diff --git a/compiler/rustc_trait_selection/messages.ftl b/compiler/rustc_trait_selection/messages.ftl index 2db24c43734..20253b32add 100644 --- a/compiler/rustc_trait_selection/messages.ftl +++ b/compiler/rustc_trait_selection/messages.ftl @@ -27,6 +27,8 @@ trait_selection_inherent_projection_normalization_overflow = overflow evaluating trait_selection_invalid_on_clause_in_rustc_on_unimplemented = invalid `on`-clause in `#[rustc_on_unimplemented]` .label = invalid on-clause here +trait_selection_malformed_on_unimplemented_attr = malformed `on_unimplemented` attribute + trait_selection_negative_positive_conflict = found both positive and negative implementation of trait `{$trait_desc}`{$self_desc -> [none] {""} *[default] {" "}for type `{$self_desc}` diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs index 307c0516f70..51cb192a1e8 100644 --- a/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs +++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs @@ -28,8 +28,8 @@ use std::ops::ControlFlow; use crate::traits::vtable::{count_own_vtable_entries, prepare_vtable_segments, VtblSegment}; use super::inspect::ProofTreeBuilder; -use super::search_graph; use super::SolverMode; +use super::{search_graph, GoalEvaluationKind}; use super::{search_graph::SearchGraph, Goal}; pub use select::InferCtxtSelectExt; @@ -85,7 +85,7 @@ pub struct EvalCtxt<'a, 'tcx> { // evaluation code. tainted: Result<(), NoSolution>, - inspect: ProofTreeBuilder<'tcx>, + pub(super) inspect: ProofTreeBuilder<'tcx>, } #[derive(Debug, Clone)] @@ -164,7 +164,7 @@ impl<'tcx> InferCtxtEvalExt<'tcx> for InferCtxt<'tcx> { Option<inspect::GoalEvaluation<'tcx>>, ) { EvalCtxt::enter_root(self, generate_proof_tree, |ecx| { - ecx.evaluate_goal(IsNormalizesToHack::No, goal) + ecx.evaluate_goal(GoalEvaluationKind::Root, goal) }) } } @@ -340,11 +340,11 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { /// been constrained and the certainty of the result. fn evaluate_goal( &mut self, - is_normalizes_to_hack: IsNormalizesToHack, + goal_evaluation_kind: GoalEvaluationKind, goal: Goal<'tcx, ty::Predicate<'tcx>>, ) -> Result<(bool, Certainty, Vec<Goal<'tcx, ty::Predicate<'tcx>>>), NoSolution> { let (orig_values, canonical_goal) = self.canonicalize_goal(goal); - let mut goal_evaluation = self.inspect.new_goal_evaluation(goal, is_normalizes_to_hack); + let mut goal_evaluation = self.inspect.new_goal_evaluation(goal, goal_evaluation_kind); let encountered_overflow = self.search_graph.encountered_overflow(); let canonical_response = EvalCtxt::evaluate_canonical_goal( self.tcx(), @@ -389,7 +389,10 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { // solver cycle. if cfg!(debug_assertions) && has_changed - && is_normalizes_to_hack == IsNormalizesToHack::No + && !matches!( + goal_evaluation_kind, + GoalEvaluationKind::Nested { is_normalizes_to_hack: IsNormalizesToHack::Yes } + ) && !self.search_graph.in_cycle() { // The nested evaluation has to happen with the original state @@ -561,8 +564,10 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { }, ); - let (_, certainty, instantiate_goals) = - self.evaluate_goal(IsNormalizesToHack::Yes, unconstrained_goal)?; + let (_, certainty, instantiate_goals) = self.evaluate_goal( + GoalEvaluationKind::Nested { is_normalizes_to_hack: IsNormalizesToHack::Yes }, + unconstrained_goal, + )?; self.add_goals(instantiate_goals); // Finally, equate the goal's RHS with the unconstrained var. @@ -596,8 +601,10 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { } for goal in goals.goals.drain(..) { - let (has_changed, certainty, instantiate_goals) = - self.evaluate_goal(IsNormalizesToHack::No, goal)?; + let (has_changed, certainty, instantiate_goals) = self.evaluate_goal( + GoalEvaluationKind::Nested { is_normalizes_to_hack: IsNormalizesToHack::No }, + goal, + )?; self.add_goals(instantiate_goals); if has_changed { unchanged_certainty = None; diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt/probe.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt/probe.rs index f88cfbac3f3..6087b916790 100644 --- a/compiler/rustc_trait_selection/src/solve/eval_ctxt/probe.rs +++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt/probe.rs @@ -24,13 +24,13 @@ where search_graph: outer_ecx.search_graph, nested_goals: outer_ecx.nested_goals.clone(), tainted: outer_ecx.tainted, - inspect: outer_ecx.inspect.new_goal_candidate(), + inspect: outer_ecx.inspect.new_probe(), }; let r = nested_ecx.infcx.probe(|_| f(&mut nested_ecx)); if !outer_ecx.inspect.is_noop() { let probe_kind = probe_kind(&r); nested_ecx.inspect.probe_kind(probe_kind); - outer_ecx.inspect.goal_candidate(nested_ecx.inspect); + outer_ecx.inspect.finish_probe(nested_ecx.inspect); } r } diff --git a/compiler/rustc_trait_selection/src/solve/inspect.rs b/compiler/rustc_trait_selection/src/solve/inspect.rs index 46025da7683..749bba33c9b 100644 --- a/compiler/rustc_trait_selection/src/solve/inspect.rs +++ b/compiler/rustc_trait_selection/src/solve/inspect.rs @@ -7,13 +7,13 @@ use rustc_middle::ty::{self, TyCtxt}; use rustc_session::config::DumpSolverProofTree; use super::eval_ctxt::UseGlobalCache; -use super::GenerateProofTree; +use super::{GenerateProofTree, GoalEvaluationKind}; #[derive(Eq, PartialEq, Debug)] pub struct WipGoalEvaluation<'tcx> { pub uncanonicalized_goal: Goal<'tcx, ty::Predicate<'tcx>>, + pub kind: WipGoalEvaluationKind, pub evaluation: Option<WipCanonicalGoalEvaluation<'tcx>>, - pub is_normalizes_to_hack: IsNormalizesToHack, pub returned_goals: Vec<Goal<'tcx, ty::Predicate<'tcx>>>, } @@ -21,8 +21,13 @@ impl<'tcx> WipGoalEvaluation<'tcx> { pub fn finalize(self) -> inspect::GoalEvaluation<'tcx> { inspect::GoalEvaluation { uncanonicalized_goal: self.uncanonicalized_goal, + kind: match self.kind { + WipGoalEvaluationKind::Root => inspect::GoalEvaluationKind::Root, + WipGoalEvaluationKind::Nested { is_normalizes_to_hack } => { + inspect::GoalEvaluationKind::Nested { is_normalizes_to_hack } + } + }, evaluation: self.evaluation.unwrap().finalize(), - is_normalizes_to_hack: self.is_normalizes_to_hack, returned_goals: self.returned_goals, } } @@ -30,6 +35,12 @@ impl<'tcx> WipGoalEvaluation<'tcx> { #[derive(Eq, PartialEq, Debug)] pub enum WipGoalEvaluationKind { + Root, + Nested { is_normalizes_to_hack: IsNormalizesToHack }, +} + +#[derive(Eq, PartialEq, Debug)] +pub enum WipCanonicalGoalEvaluationKind { Overflow, CacheHit(CacheHit), } @@ -37,7 +48,7 @@ pub enum WipGoalEvaluationKind { #[derive(Eq, PartialEq, Debug)] pub struct WipCanonicalGoalEvaluation<'tcx> { pub goal: CanonicalInput<'tcx>, - pub kind: Option<WipGoalEvaluationKind>, + pub kind: Option<WipCanonicalGoalEvaluationKind>, pub revisions: Vec<WipGoalEvaluationStep<'tcx>>, pub result: Option<QueryResult<'tcx>>, } @@ -45,11 +56,13 @@ pub struct WipCanonicalGoalEvaluation<'tcx> { impl<'tcx> WipCanonicalGoalEvaluation<'tcx> { pub fn finalize(self) -> inspect::CanonicalGoalEvaluation<'tcx> { let kind = match self.kind { - Some(WipGoalEvaluationKind::Overflow) => inspect::GoalEvaluationKind::Overflow, - Some(WipGoalEvaluationKind::CacheHit(hit)) => { - inspect::GoalEvaluationKind::CacheHit(hit) + Some(WipCanonicalGoalEvaluationKind::Overflow) => { + inspect::CanonicalGoalEvaluationKind::Overflow } - None => inspect::GoalEvaluationKind::Uncached { + Some(WipCanonicalGoalEvaluationKind::CacheHit(hit)) => { + inspect::CanonicalGoalEvaluationKind::CacheHit(hit) + } + None => inspect::CanonicalGoalEvaluationKind::Uncached { revisions: self .revisions .into_iter() @@ -87,7 +100,7 @@ impl<'tcx> WipAddedGoalsEvaluation<'tcx> { pub struct WipGoalEvaluationStep<'tcx> { pub instantiated_goal: QueryInput<'tcx, ty::Predicate<'tcx>>, - pub evaluation: WipGoalCandidate<'tcx>, + pub evaluation: WipProbe<'tcx>, } impl<'tcx> WipGoalEvaluationStep<'tcx> { @@ -102,26 +115,37 @@ impl<'tcx> WipGoalEvaluationStep<'tcx> { } #[derive(Eq, PartialEq, Debug)] -pub struct WipGoalCandidate<'tcx> { - pub added_goals_evaluations: Vec<WipAddedGoalsEvaluation<'tcx>>, - pub candidates: Vec<WipGoalCandidate<'tcx>>, +pub struct WipProbe<'tcx> { + pub steps: Vec<WipProbeStep<'tcx>>, pub kind: Option<ProbeKind<'tcx>>, } -impl<'tcx> WipGoalCandidate<'tcx> { - pub fn finalize(self) -> inspect::GoalCandidate<'tcx> { - inspect::GoalCandidate { - added_goals_evaluations: self - .added_goals_evaluations - .into_iter() - .map(WipAddedGoalsEvaluation::finalize) - .collect(), - candidates: self.candidates.into_iter().map(WipGoalCandidate::finalize).collect(), +impl<'tcx> WipProbe<'tcx> { + pub fn finalize(self) -> inspect::Probe<'tcx> { + inspect::Probe { + steps: self.steps.into_iter().map(WipProbeStep::finalize).collect(), kind: self.kind.unwrap(), } } } +#[derive(Eq, PartialEq, Debug)] +pub enum WipProbeStep<'tcx> { + AddGoal(Goal<'tcx, ty::Predicate<'tcx>>), + EvaluateGoals(WipAddedGoalsEvaluation<'tcx>), + NestedProbe(WipProbe<'tcx>), +} + +impl<'tcx> WipProbeStep<'tcx> { + pub fn finalize(self) -> inspect::ProbeStep<'tcx> { + match self { + WipProbeStep::AddGoal(goal) => inspect::ProbeStep::AddGoal(goal), + WipProbeStep::EvaluateGoals(eval) => inspect::ProbeStep::EvaluateGoals(eval.finalize()), + WipProbeStep::NestedProbe(probe) => inspect::ProbeStep::NestedProbe(probe.finalize()), + } + } +} + #[derive(Debug)] pub enum DebugSolver<'tcx> { Root, @@ -129,7 +153,7 @@ pub enum DebugSolver<'tcx> { CanonicalGoalEvaluation(WipCanonicalGoalEvaluation<'tcx>), AddedGoalsEvaluation(WipAddedGoalsEvaluation<'tcx>), GoalEvaluationStep(WipGoalEvaluationStep<'tcx>), - GoalCandidate(WipGoalCandidate<'tcx>), + Probe(WipProbe<'tcx>), } impl<'tcx> From<WipGoalEvaluation<'tcx>> for DebugSolver<'tcx> { @@ -156,9 +180,9 @@ impl<'tcx> From<WipGoalEvaluationStep<'tcx>> for DebugSolver<'tcx> { } } -impl<'tcx> From<WipGoalCandidate<'tcx>> for DebugSolver<'tcx> { - fn from(g: WipGoalCandidate<'tcx>) -> DebugSolver<'tcx> { - DebugSolver::GoalCandidate(g) +impl<'tcx> From<WipProbe<'tcx>> for DebugSolver<'tcx> { + fn from(p: WipProbe<'tcx>) -> DebugSolver<'tcx> { + DebugSolver::Probe(p) } } @@ -249,15 +273,20 @@ impl<'tcx> ProofTreeBuilder<'tcx> { self.state.is_none() } - pub fn new_goal_evaluation( + pub(super) fn new_goal_evaluation( &mut self, goal: Goal<'tcx, ty::Predicate<'tcx>>, - is_normalizes_to_hack: IsNormalizesToHack, + kind: GoalEvaluationKind, ) -> ProofTreeBuilder<'tcx> { self.nested(|| WipGoalEvaluation { uncanonicalized_goal: goal, + kind: match kind { + GoalEvaluationKind::Root => WipGoalEvaluationKind::Root, + GoalEvaluationKind::Nested { is_normalizes_to_hack } => { + WipGoalEvaluationKind::Nested { is_normalizes_to_hack } + } + }, evaluation: None, - is_normalizes_to_hack, returned_goals: vec![], }) } @@ -286,7 +315,7 @@ impl<'tcx> ProofTreeBuilder<'tcx> { } } - pub fn goal_evaluation_kind(&mut self, kind: WipGoalEvaluationKind) { + pub fn goal_evaluation_kind(&mut self, kind: WipCanonicalGoalEvaluationKind) { if let Some(this) = self.as_mut() { match this { DebugSolver::CanonicalGoalEvaluation(canonical_goal_evaluation) => { @@ -329,11 +358,7 @@ impl<'tcx> ProofTreeBuilder<'tcx> { ) -> ProofTreeBuilder<'tcx> { self.nested(|| WipGoalEvaluationStep { instantiated_goal, - evaluation: WipGoalCandidate { - added_goals_evaluations: vec![], - candidates: vec![], - kind: None, - }, + evaluation: WipProbe { steps: vec![], kind: None }, }) } pub fn goal_evaluation_step(&mut self, goal_evaluation_step: ProofTreeBuilder<'tcx>) { @@ -350,18 +375,14 @@ impl<'tcx> ProofTreeBuilder<'tcx> { } } - pub fn new_goal_candidate(&mut self) -> ProofTreeBuilder<'tcx> { - self.nested(|| WipGoalCandidate { - added_goals_evaluations: vec![], - candidates: vec![], - kind: None, - }) + pub fn new_probe(&mut self) -> ProofTreeBuilder<'tcx> { + self.nested(|| WipProbe { steps: vec![], kind: None }) } pub fn probe_kind(&mut self, probe_kind: ProbeKind<'tcx>) { if let Some(this) = self.as_mut() { match this { - DebugSolver::GoalCandidate(this) => { + DebugSolver::Probe(this) => { assert_eq!(this.kind.replace(probe_kind), None) } _ => unreachable!(), @@ -369,17 +390,32 @@ impl<'tcx> ProofTreeBuilder<'tcx> { } } - pub fn goal_candidate(&mut self, candidate: ProofTreeBuilder<'tcx>) { + pub fn add_goal(&mut self, goal: Goal<'tcx, ty::Predicate<'tcx>>) { if let Some(this) = self.as_mut() { - match (this, candidate.state.unwrap().tree) { + match this { + DebugSolver::GoalEvaluationStep(WipGoalEvaluationStep { + evaluation: WipProbe { steps, .. }, + .. + }) + | DebugSolver::Probe(WipProbe { steps, .. }) => { + steps.push(WipProbeStep::AddGoal(goal)) + } + _ => unreachable!(), + } + } + } + + pub fn finish_probe(&mut self, probe: ProofTreeBuilder<'tcx>) { + if let Some(this) = self.as_mut() { + match (this, probe.state.unwrap().tree) { ( - DebugSolver::GoalCandidate(WipGoalCandidate { candidates, .. }) + DebugSolver::Probe(WipProbe { steps, .. }) | DebugSolver::GoalEvaluationStep(WipGoalEvaluationStep { - evaluation: WipGoalCandidate { candidates, .. }, + evaluation: WipProbe { steps, .. }, .. }), - DebugSolver::GoalCandidate(candidate), - ) => candidates.push(candidate), + DebugSolver::Probe(probe), + ) => steps.push(WipProbeStep::NestedProbe(probe)), _ => unreachable!(), } } @@ -416,14 +452,12 @@ impl<'tcx> ProofTreeBuilder<'tcx> { match (this, added_goals_evaluation.state.unwrap().tree) { ( DebugSolver::GoalEvaluationStep(WipGoalEvaluationStep { - evaluation: WipGoalCandidate { added_goals_evaluations, .. }, + evaluation: WipProbe { steps, .. }, .. }) - | DebugSolver::GoalCandidate(WipGoalCandidate { - added_goals_evaluations, .. - }), + | DebugSolver::Probe(WipProbe { steps, .. }), DebugSolver::AddedGoalsEvaluation(added_goals_evaluation), - ) => added_goals_evaluations.push(added_goals_evaluation), + ) => steps.push(WipProbeStep::EvaluateGoals(added_goals_evaluation)), _ => unreachable!(), } } diff --git a/compiler/rustc_trait_selection/src/solve/mod.rs b/compiler/rustc_trait_selection/src/solve/mod.rs index c492408bc76..bd612ce4778 100644 --- a/compiler/rustc_trait_selection/src/solve/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/mod.rs @@ -19,7 +19,8 @@ use rustc_infer::infer::canonical::{Canonical, CanonicalVarValues}; use rustc_infer::traits::query::NoSolution; use rustc_middle::infer::canonical::CanonicalVarInfos; use rustc_middle::traits::solve::{ - CanonicalResponse, Certainty, ExternalConstraintsData, Goal, QueryResult, Response, + CanonicalResponse, Certainty, ExternalConstraintsData, Goal, IsNormalizesToHack, QueryResult, + Response, }; use rustc_middle::ty::{self, Ty, TyCtxt, UniverseIndex}; use rustc_middle::ty::{ @@ -59,6 +60,12 @@ enum SolverMode { Coherence, } +#[derive(Debug, Copy, Clone, PartialEq, Eq)] +enum GoalEvaluationKind { + Root, + Nested { is_normalizes_to_hack: IsNormalizesToHack }, +} + trait CanonicalResponseExt { fn has_no_inference_or_external_constraints(&self) -> bool; @@ -228,6 +235,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { #[instrument(level = "debug", skip(self))] fn add_goal(&mut self, goal: Goal<'tcx, ty::Predicate<'tcx>>) { + self.inspect.add_goal(goal); self.nested_goals.goals.push(goal); } diff --git a/compiler/rustc_trait_selection/src/solve/search_graph/mod.rs b/compiler/rustc_trait_selection/src/solve/search_graph/mod.rs index c816b51f67a..16de518e8e0 100644 --- a/compiler/rustc_trait_selection/src/solve/search_graph/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/search_graph/mod.rs @@ -187,7 +187,7 @@ impl<'tcx> SearchGraph<'tcx> { last.encountered_overflow = true; } - inspect.goal_evaluation_kind(inspect::WipGoalEvaluationKind::Overflow); + inspect.goal_evaluation_kind(inspect::WipCanonicalGoalEvaluationKind::Overflow); return Self::response_no_constraints(tcx, input, Certainty::OVERFLOW); }; @@ -203,7 +203,7 @@ impl<'tcx> SearchGraph<'tcx> { available_depth, ) { - inspect.goal_evaluation_kind(inspect::WipGoalEvaluationKind::CacheHit( + inspect.goal_evaluation_kind(inspect::WipCanonicalGoalEvaluationKind::CacheHit( CacheHit::Global, )); self.on_cache_hit(reached_depth, encountered_overflow); @@ -240,7 +240,7 @@ impl<'tcx> SearchGraph<'tcx> { // Finally we can return either the provisional response for that goal if we have a // coinductive cycle or an ambiguous result if the cycle is inductive. Entry::Occupied(entry_index) => { - inspect.goal_evaluation_kind(inspect::WipGoalEvaluationKind::CacheHit( + inspect.goal_evaluation_kind(inspect::WipCanonicalGoalEvaluationKind::CacheHit( CacheHit::Provisional, )); diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs index fe71a9f07df..4086db2ab55 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs @@ -9,6 +9,7 @@ use rustc_hir::def_id::DefId; use rustc_middle::ty::GenericArgsRef; use rustc_middle::ty::{self, GenericParamDefKind, TyCtxt}; use rustc_parse_format::{ParseMode, Parser, Piece, Position}; +use rustc_session::lint::builtin::UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES; use rustc_span::symbol::{kw, sym, Symbol}; use rustc_span::{Span, DUMMY_SP}; use std::iter; @@ -336,6 +337,10 @@ pub enum AppendConstMessage { Custom(Symbol), } +#[derive(LintDiagnostic)] +#[diag(trait_selection_malformed_on_unimplemented_attr)] +pub struct NoValueInOnUnimplementedLint; + impl<'tcx> OnUnimplementedDirective { fn parse( tcx: TyCtxt<'tcx>, @@ -343,7 +348,8 @@ impl<'tcx> OnUnimplementedDirective { items: &[NestedMetaItem], span: Span, is_root: bool, - ) -> Result<Self, ErrorGuaranteed> { + is_diagnostic_namespace_variant: bool, + ) -> Result<Option<Self>, ErrorGuaranteed> { let mut errored = None; let mut item_iter = items.iter(); @@ -391,7 +397,10 @@ impl<'tcx> OnUnimplementedDirective { note = parse_value(note_)?; continue; } - } else if item.has_name(sym::parent_label) && parent_label.is_none() { + } else if item.has_name(sym::parent_label) + && parent_label.is_none() + && !is_diagnostic_namespace_variant + { if let Some(parent_label_) = item.value_str() { parent_label = parse_value(parent_label_)?; continue; @@ -401,15 +410,30 @@ impl<'tcx> OnUnimplementedDirective { && message.is_none() && label.is_none() && note.is_none() + && !is_diagnostic_namespace_variant + // FIXME(diagnostic_namespace): disallow filters for now { if let Some(items) = item.meta_item_list() { - match Self::parse(tcx, item_def_id, &items, item.span(), false) { - Ok(subcommand) => subcommands.push(subcommand), + match Self::parse( + tcx, + item_def_id, + &items, + item.span(), + false, + is_diagnostic_namespace_variant, + ) { + Ok(Some(subcommand)) => subcommands.push(subcommand), + Ok(None) => bug!( + "This cannot happen for now as we only reach that if `is_diagnostic_namespace_variant` is false" + ), Err(reported) => errored = Some(reported), }; continue; } - } else if item.has_name(sym::append_const_msg) && append_const_msg.is_none() { + } else if item.has_name(sym::append_const_msg) + && append_const_msg.is_none() + && !is_diagnostic_namespace_variant + { if let Some(msg) = item.value_str() { append_const_msg = Some(AppendConstMessage::Custom(msg)); continue; @@ -419,14 +443,23 @@ impl<'tcx> OnUnimplementedDirective { } } - // nothing found - tcx.sess.emit_err(NoValueInOnUnimplemented { span: item.span() }); + if is_diagnostic_namespace_variant { + tcx.emit_spanned_lint( + UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, + tcx.hir().local_def_id_to_hir_id(item_def_id.expect_local()), + vec![item.span()], + NoValueInOnUnimplementedLint, + ); + } else { + // nothing found + tcx.sess.emit_err(NoValueInOnUnimplemented { span: item.span() }); + } } if let Some(reported) = errored { - Err(reported) + if is_diagnostic_namespace_variant { Ok(None) } else { Err(reported) } } else { - Ok(OnUnimplementedDirective { + Ok(Some(OnUnimplementedDirective { condition, subcommands, message, @@ -434,32 +467,58 @@ impl<'tcx> OnUnimplementedDirective { note, parent_label, append_const_msg, - }) + })) } } pub fn of_item(tcx: TyCtxt<'tcx>, item_def_id: DefId) -> Result<Option<Self>, ErrorGuaranteed> { - let Some(attr) = tcx.get_attr(item_def_id, sym::rustc_on_unimplemented) else { + let mut is_diagnostic_namespace_variant = false; + let Some(attr) = tcx.get_attr(item_def_id, sym::rustc_on_unimplemented).or_else(|| { + if tcx.features().diagnostic_namespace { + is_diagnostic_namespace_variant = true; + tcx.get_attrs_by_path(item_def_id, &[sym::diagnostic, sym::on_unimplemented]).next() + } else { + None + } + }) else { return Ok(None); }; let result = if let Some(items) = attr.meta_item_list() { - Self::parse(tcx, item_def_id, &items, attr.span, true).map(Some) + Self::parse(tcx, item_def_id, &items, attr.span, true, is_diagnostic_namespace_variant) } else if let Some(value) = attr.value_str() { - Ok(Some(OnUnimplementedDirective { - condition: None, - message: None, - subcommands: vec![], - label: Some(OnUnimplementedFormatString::try_parse( - tcx, - item_def_id, - value, + if !is_diagnostic_namespace_variant { + Ok(Some(OnUnimplementedDirective { + condition: None, + message: None, + subcommands: vec![], + label: Some(OnUnimplementedFormatString::try_parse( + tcx, + item_def_id, + value, + attr.span, + )?), + note: None, + parent_label: None, + append_const_msg: None, + })) + } else { + tcx.emit_spanned_lint( + UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, + tcx.hir().local_def_id_to_hir_id(item_def_id.expect_local()), attr.span, - )?), - note: None, - parent_label: None, - append_const_msg: None, - })) + NoValueInOnUnimplementedLint, + ); + Ok(None) + } + } else if is_diagnostic_namespace_variant { + tcx.emit_spanned_lint( + UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, + tcx.hir().local_def_id_to_hir_id(item_def_id.expect_local()), + attr.span, + NoValueInOnUnimplementedLint, + ); + Ok(None) } else { let reported = tcx.sess.delay_span_bug(DUMMY_SP, "of_item: neither meta_item_list nor value_str"); diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs index 979498fb6e6..e415d70479e 100644 --- a/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs +++ b/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs @@ -13,7 +13,7 @@ use rustc_span::def_id::CRATE_DEF_ID; use rustc_span::source_map::DUMMY_SP; use smallvec::{smallvec, SmallVec}; -#[derive(Copy, Clone, Debug, HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(Copy, Clone, Debug, HashStable, TypeFoldable, TypeVisitable)] pub struct ImpliedOutlivesBounds<'tcx> { pub ty: Ty<'tcx>, } diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/outlives.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/outlives.rs index 59f4a22ac75..f2c1243f931 100644 --- a/compiler/rustc_trait_selection/src/traits/query/type_op/outlives.rs +++ b/compiler/rustc_trait_selection/src/traits/query/type_op/outlives.rs @@ -6,7 +6,7 @@ use crate::traits::ObligationCtxt; use rustc_middle::traits::query::{DropckOutlivesResult, NoSolution}; use rustc_middle::ty::{ParamEnvAnd, Ty, TyCtxt}; -#[derive(Copy, Clone, Debug, HashStable, TypeFoldable, TypeVisitable, Lift)] +#[derive(Copy, Clone, Debug, HashStable, TypeFoldable, TypeVisitable)] pub struct DropckOutlives<'tcx> { dropped_ty: Ty<'tcx>, } diff --git a/config.example.toml b/config.example.toml index 2e0558c3f1b..f3c2366d674 100644 --- a/config.example.toml +++ b/config.example.toml @@ -458,7 +458,6 @@ changelog-seen = 2 # Sets the number of codegen units to build the standard library with, # regardless of what the codegen-unit setting for the rest of the compiler is. # NOTE: building with anything other than 1 is known to occasionally have bugs. -# See https://github.com/rust-lang/rust/issues/83600. #codegen-units-std = codegen-units # Whether or not debug assertions are enabled for the compiler and standard library. diff --git a/library/alloc/src/collections/vec_deque/mod.rs b/library/alloc/src/collections/vec_deque/mod.rs index 5965ec2affa..4ef8af9b034 100644 --- a/library/alloc/src/collections/vec_deque/mod.rs +++ b/library/alloc/src/collections/vec_deque/mod.rs @@ -1015,8 +1015,8 @@ impl<T, A: Allocator> VecDeque<T, A> { /// Shortens the deque, keeping the first `len` elements and dropping /// the rest. /// - /// If `len` is greater than the deque's current length, this has no - /// effect. + /// If `len` is greater or equal to the deque's current length, this has + /// no effect. /// /// # Examples /// diff --git a/library/alloc/src/fmt.rs b/library/alloc/src/fmt.rs index fb8d00e8d87..1e2c35bf735 100644 --- a/library/alloc/src/fmt.rs +++ b/library/alloc/src/fmt.rs @@ -177,8 +177,8 @@ //! These are all flags altering the behavior of the formatter. //! //! * `+` - This is intended for numeric types and indicates that the sign -//! should always be printed. Positive signs are never printed by -//! default, and the negative sign is only printed by default for signed values. +//! should always be printed. By default only the negative sign of signed values +//! is printed, and the sign of positive or unsigned values is omitted. //! This flag indicates that the correct sign (`+` or `-`) should always be printed. //! * `-` - Currently not used //! * `#` - This flag indicates that the "alternate" form of printing should diff --git a/library/alloc/src/lib.rs b/library/alloc/src/lib.rs index e43b6ac4039..f435f503fc1 100644 --- a/library/alloc/src/lib.rs +++ b/library/alloc/src/lib.rs @@ -144,7 +144,6 @@ #![feature(ptr_metadata)] #![feature(ptr_sub_ptr)] #![feature(receiver_trait)] -#![feature(saturating_int_impl)] #![feature(set_ptr_value)] #![feature(sized_type_properties)] #![feature(slice_from_ptr_range)] diff --git a/library/alloc/src/macros.rs b/library/alloc/src/macros.rs index 3f19561e1ac..0f767df6063 100644 --- a/library/alloc/src/macros.rs +++ b/library/alloc/src/macros.rs @@ -88,15 +88,19 @@ macro_rules! vec { /// /// A common use for `format!` is concatenation and interpolation of strings. /// The same convention is used with [`print!`] and [`write!`] macros, -/// depending on the intended destination of the string. +/// depending on the intended destination of the string; all these macros internally use [`format_args!`]. /// /// To convert a single value to a string, use the [`to_string`] method. This /// will use the [`Display`] formatting trait. /// +/// To concatenate literals into a `&'static str`, use the [`concat!`] macro. +/// /// [`print!`]: ../std/macro.print.html /// [`write!`]: core::write +/// [`format_args!`]: core::format_args /// [`to_string`]: crate::string::ToString /// [`Display`]: core::fmt::Display +/// [`concat!`]: core::concat /// /// # Panics /// @@ -107,11 +111,11 @@ macro_rules! vec { /// # Examples /// /// ``` -/// format!("test"); -/// format!("hello {}", "world!"); -/// format!("x = {}, y = {y}", 10, y = 30); +/// format!("test"); // => "test" +/// format!("hello {}", "world!"); // => "hello world!" +/// format!("x = {}, y = {val}", 10, val = 30); // => "x = 10, y = 30" /// let (x, y) = (1, 2); -/// format!("{x} + {y} = 3"); +/// format!("{x} + {y} = 3"); // => "1 + 2 = 3" /// ``` #[macro_export] #[stable(feature = "rust1", since = "1.0.0")] diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs index 4cfffdf18c6..02331db3341 100644 --- a/library/alloc/src/vec/mod.rs +++ b/library/alloc/src/vec/mod.rs @@ -1110,8 +1110,8 @@ impl<T, A: Allocator> Vec<T, A> { /// Shortens the vector, keeping the first `len` elements and dropping /// the rest. /// - /// If `len` is greater than the vector's current length, this has no - /// effect. + /// If `len` is greater or equal to the vector's current length, this has + /// no effect. /// /// The [`drain`] method can emulate `truncate`, but causes the excess /// elements to be returned instead of dropped. diff --git a/library/core/src/ascii/ascii_char.rs b/library/core/src/ascii/ascii_char.rs index 5378b210e67..cc872a5343d 100644 --- a/library/core/src/ascii/ascii_char.rs +++ b/library/core/src/ascii/ascii_char.rs @@ -3,7 +3,7 @@ //! suggestions from rustc if you get anything slightly wrong in here, and overall //! helps with clarity as we're also referring to `char` intentionally in here. -use crate::fmt; +use crate::fmt::{self, Write}; use crate::mem::transmute; /// One of the 128 Unicode characters from U+0000 through U+007F, @@ -54,7 +54,7 @@ use crate::mem::transmute; /// [chart]: https://www.unicode.org/charts/PDF/U0000.pdf /// [NIST FIPS 1-2]: https://nvlpubs.nist.gov/nistpubs/Legacy/FIPS/fipspub1-2-1977.pdf /// [NamesList]: https://www.unicode.org/Public/15.0.0/ucd/NamesList.txt -#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)] +#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)] #[unstable(feature = "ascii_char", issue = "110998")] #[repr(u8)] pub enum AsciiChar { @@ -563,3 +563,40 @@ impl fmt::Display for AsciiChar { <str as fmt::Display>::fmt(self.as_str(), f) } } + +#[unstable(feature = "ascii_char", issue = "110998")] +impl fmt::Debug for AsciiChar { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + #[inline] + fn backslash(a: AsciiChar) -> ([AsciiChar; 4], u8) { + ([AsciiChar::ReverseSolidus, a, AsciiChar::Null, AsciiChar::Null], 2) + } + + let (buf, len) = match self { + AsciiChar::Null => backslash(AsciiChar::Digit0), + AsciiChar::CharacterTabulation => backslash(AsciiChar::SmallT), + AsciiChar::CarriageReturn => backslash(AsciiChar::SmallR), + AsciiChar::LineFeed => backslash(AsciiChar::SmallN), + AsciiChar::ReverseSolidus => backslash(AsciiChar::ReverseSolidus), + AsciiChar::Apostrophe => backslash(AsciiChar::Apostrophe), + _ => { + let byte = self.to_u8(); + if !byte.is_ascii_control() { + ([*self, AsciiChar::Null, AsciiChar::Null, AsciiChar::Null], 1) + } else { + const HEX_DIGITS: [AsciiChar; 16] = *b"0123456789abcdef".as_ascii().unwrap(); + + let hi = HEX_DIGITS[usize::from(byte >> 4)]; + let lo = HEX_DIGITS[usize::from(byte & 0xf)]; + ([AsciiChar::ReverseSolidus, AsciiChar::SmallX, hi, lo], 4) + } + } + }; + + f.write_char('\'')?; + for byte in &buf[..len as usize] { + f.write_str(byte.as_str())?; + } + f.write_char('\'') + } +} diff --git a/library/core/src/fmt/builders.rs b/library/core/src/fmt/builders.rs index d2c9f980042..9227248041e 100644 --- a/library/core/src/fmt/builders.rs +++ b/library/core/src/fmt/builders.rs @@ -40,6 +40,14 @@ impl fmt::Write for PadAdapter<'_, '_> { Ok(()) } + + fn write_char(&mut self, c: char) -> fmt::Result { + if self.state.on_newline { + self.buf.write_str(" ")?; + } + self.state.on_newline = c == '\n'; + self.buf.write_char(c) + } } /// A struct to help with [`fmt::Debug`](Debug) implementations. diff --git a/library/core/src/fmt/mod.rs b/library/core/src/fmt/mod.rs index 9ce6093f1d1..8204b3855bd 100644 --- a/library/core/src/fmt/mod.rs +++ b/library/core/src/fmt/mod.rs @@ -188,8 +188,28 @@ pub trait Write { /// assert_eq!(&buf, "world"); /// ``` #[stable(feature = "rust1", since = "1.0.0")] - fn write_fmt(mut self: &mut Self, args: Arguments<'_>) -> Result { - write(&mut self, args) + fn write_fmt(&mut self, args: Arguments<'_>) -> Result { + // We use a specialization for `Sized` types to avoid an indirection + // through `&mut self` + trait SpecWriteFmt { + fn spec_write_fmt(self, args: Arguments<'_>) -> Result; + } + + impl<W: Write + ?Sized> SpecWriteFmt for &mut W { + #[inline] + default fn spec_write_fmt(mut self, args: Arguments<'_>) -> Result { + write(&mut self, args) + } + } + + impl<W: Write> SpecWriteFmt for &mut W { + #[inline] + fn spec_write_fmt(self, args: Arguments<'_>) -> Result { + write(self, args) + } + } + + self.spec_write_fmt(args) } } diff --git a/library/core/src/hint.rs b/library/core/src/hint.rs index 75c104ce2fa..4bf3da07354 100644 --- a/library/core/src/hint.rs +++ b/library/core/src/hint.rs @@ -175,34 +175,27 @@ pub fn spin_loop() { unsafe { crate::arch::x86_64::_mm_pause() }; } - // RISC-V platform spin loop hint implementation + #[cfg(target_arch = "riscv32")] { - // RISC-V RV32 and RV64 share the same PAUSE instruction, but they are located in different - // modules in `core::arch`. - // In this case, here we call `pause` function in each core arch module. - #[cfg(target_arch = "riscv32")] - { - crate::arch::riscv32::pause(); - } - #[cfg(target_arch = "riscv64")] - { - crate::arch::riscv64::pause(); - } + crate::arch::riscv32::pause(); } - #[cfg(any(target_arch = "aarch64", all(target_arch = "arm", target_feature = "v6")))] + #[cfg(target_arch = "riscv64")] { - #[cfg(target_arch = "aarch64")] - { - // SAFETY: the `cfg` attr ensures that we only execute this on aarch64 targets. - unsafe { crate::arch::aarch64::__isb(crate::arch::aarch64::SY) }; - } - #[cfg(target_arch = "arm")] - { - // SAFETY: the `cfg` attr ensures that we only execute this on arm targets - // with support for the v6 feature. - unsafe { crate::arch::arm::__yield() }; - } + crate::arch::riscv64::pause(); + } + + #[cfg(target_arch = "aarch64")] + { + // SAFETY: the `cfg` attr ensures that we only execute this on aarch64 targets. + unsafe { crate::arch::aarch64::__isb(crate::arch::aarch64::SY) }; + } + + #[cfg(all(target_arch = "arm", target_feature = "v6"))] + { + // SAFETY: the `cfg` attr ensures that we only execute this on arm targets + // with support for the v6 feature. + unsafe { crate::arch::arm::__yield() }; } } diff --git a/library/core/src/iter/range.rs b/library/core/src/iter/range.rs index 391e03636ab..0e03d0c2d4e 100644 --- a/library/core/src/iter/range.rs +++ b/library/core/src/iter/range.rs @@ -1,6 +1,7 @@ use crate::ascii::Char as AsciiChar; use crate::convert::TryFrom; use crate::mem; +use crate::net::{Ipv4Addr, Ipv6Addr}; use crate::num::NonZeroUsize; use crate::ops::{self, Try}; @@ -15,7 +16,7 @@ macro_rules! unsafe_impl_trusted_step { unsafe impl TrustedStep for $type {} )*}; } -unsafe_impl_trusted_step![AsciiChar char i8 i16 i32 i64 i128 isize u8 u16 u32 u64 u128 usize]; +unsafe_impl_trusted_step![AsciiChar char i8 i16 i32 i64 i128 isize u8 u16 u32 u64 u128 usize Ipv4Addr Ipv6Addr]; /// Objects that have a notion of *successor* and *predecessor* operations. /// @@ -527,6 +528,70 @@ impl Step for AsciiChar { } } +#[unstable(feature = "step_trait", reason = "recently redesigned", issue = "42168")] +impl Step for Ipv4Addr { + #[inline] + fn steps_between(&start: &Ipv4Addr, &end: &Ipv4Addr) -> Option<usize> { + u32::steps_between(&start.to_bits(), &end.to_bits()) + } + + #[inline] + fn forward_checked(start: Ipv4Addr, count: usize) -> Option<Ipv4Addr> { + u32::forward_checked(start.to_bits(), count).map(Ipv4Addr::from_bits) + } + + #[inline] + fn backward_checked(start: Ipv4Addr, count: usize) -> Option<Ipv4Addr> { + u32::backward_checked(start.to_bits(), count).map(Ipv4Addr::from_bits) + } + + #[inline] + unsafe fn forward_unchecked(start: Ipv4Addr, count: usize) -> Ipv4Addr { + // SAFETY: Since u32 and Ipv4Addr are losslessly convertible, + // this is as safe as the u32 version. + Ipv4Addr::from_bits(unsafe { u32::forward_unchecked(start.to_bits(), count) }) + } + + #[inline] + unsafe fn backward_unchecked(start: Ipv4Addr, count: usize) -> Ipv4Addr { + // SAFETY: Since u32 and Ipv4Addr are losslessly convertible, + // this is as safe as the u32 version. + Ipv4Addr::from_bits(unsafe { u32::backward_unchecked(start.to_bits(), count) }) + } +} + +#[unstable(feature = "step_trait", reason = "recently redesigned", issue = "42168")] +impl Step for Ipv6Addr { + #[inline] + fn steps_between(&start: &Ipv6Addr, &end: &Ipv6Addr) -> Option<usize> { + u128::steps_between(&start.to_bits(), &end.to_bits()) + } + + #[inline] + fn forward_checked(start: Ipv6Addr, count: usize) -> Option<Ipv6Addr> { + u128::forward_checked(start.to_bits(), count).map(Ipv6Addr::from_bits) + } + + #[inline] + fn backward_checked(start: Ipv6Addr, count: usize) -> Option<Ipv6Addr> { + u128::backward_checked(start.to_bits(), count).map(Ipv6Addr::from_bits) + } + + #[inline] + unsafe fn forward_unchecked(start: Ipv6Addr, count: usize) -> Ipv6Addr { + // SAFETY: Since u128 and Ipv6Addr are losslessly convertible, + // this is as safe as the u128 version. + Ipv6Addr::from_bits(unsafe { u128::forward_unchecked(start.to_bits(), count) }) + } + + #[inline] + unsafe fn backward_unchecked(start: Ipv6Addr, count: usize) -> Ipv6Addr { + // SAFETY: Since u128 and Ipv6Addr are losslessly convertible, + // this is as safe as the u128 version. + Ipv6Addr::from_bits(unsafe { u128::backward_unchecked(start.to_bits(), count) }) + } +} + macro_rules! range_exact_iter_impl { ($($t:ty)*) => ($( #[stable(feature = "rust1", since = "1.0.0")] diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs index 46628bcea00..646100fe27b 100644 --- a/library/core/src/macros/mod.rs +++ b/library/core/src/macros/mod.rs @@ -1044,7 +1044,7 @@ pub(crate) mod builtin { /// expression of type `&'static str` which represents all of the literals /// concatenated left-to-right. /// - /// Integer and floating point literals are stringified in order to be + /// Integer and floating point literals are [stringified](core::stringify) in order to be /// concatenated. /// /// # Examples diff --git a/library/core/src/num/mod.rs b/library/core/src/num/mod.rs index 95dcaf5dd73..4232319fecb 100644 --- a/library/core/src/num/mod.rs +++ b/library/core/src/num/mod.rs @@ -44,11 +44,10 @@ mod uint_macros; // import uint_impl! mod error; mod int_log10; mod nonzero; -#[unstable(feature = "saturating_int_impl", issue = "87920")] mod saturating; mod wrapping; -#[unstable(feature = "saturating_int_impl", issue = "87920")] +#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub use saturating::Saturating; #[stable(feature = "rust1", since = "1.0.0")] pub use wrapping::Wrapping; diff --git a/library/core/src/num/saturating.rs b/library/core/src/num/saturating.rs index e9f794e7d62..5757e7498ad 100644 --- a/library/core/src/num/saturating.rs +++ b/library/core/src/num/saturating.rs @@ -4,7 +4,7 @@ use crate::fmt; use crate::ops::{Add, AddAssign, BitAnd, BitAndAssign, BitOr, BitOrAssign}; use crate::ops::{BitXor, BitXorAssign, Div, DivAssign}; use crate::ops::{Mul, MulAssign, Neg, Not, Rem, RemAssign}; -use crate::ops::{Shl, ShlAssign, Shr, ShrAssign, Sub, SubAssign}; +use crate::ops::{Sub, SubAssign}; /// Provides intentionally-saturating arithmetic on `T`. /// @@ -24,7 +24,6 @@ use crate::ops::{Shl, ShlAssign, Shr, ShrAssign, Sub, SubAssign}; /// # Examples /// /// ``` -/// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// /// let max = Saturating(u32::MAX); @@ -32,181 +31,186 @@ use crate::ops::{Shl, ShlAssign, Shr, ShrAssign, Sub, SubAssign}; /// /// assert_eq!(u32::MAX, (max + one).0); /// ``` -#[unstable(feature = "saturating_int_impl", issue = "87920")] +#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] #[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Default, Hash)] #[repr(transparent)] #[rustc_diagnostic_item = "Saturating"] -pub struct Saturating<T>(#[unstable(feature = "saturating_int_impl", issue = "87920")] pub T); +pub struct Saturating<T>( + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub T, +); -#[unstable(feature = "saturating_int_impl", issue = "87920")] +#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl<T: fmt::Debug> fmt::Debug for Saturating<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { self.0.fmt(f) } } -#[unstable(feature = "saturating_int_impl", issue = "87920")] +#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl<T: fmt::Display> fmt::Display for Saturating<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { self.0.fmt(f) } } -#[unstable(feature = "saturating_int_impl", issue = "87920")] +#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl<T: fmt::Binary> fmt::Binary for Saturating<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { self.0.fmt(f) } } -#[unstable(feature = "saturating_int_impl", issue = "87920")] +#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl<T: fmt::Octal> fmt::Octal for Saturating<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { self.0.fmt(f) } } -#[unstable(feature = "saturating_int_impl", issue = "87920")] +#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl<T: fmt::LowerHex> fmt::LowerHex for Saturating<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { self.0.fmt(f) } } -#[unstable(feature = "saturating_int_impl", issue = "87920")] +#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl<T: fmt::UpperHex> fmt::UpperHex for Saturating<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { self.0.fmt(f) } } -#[allow(unused_macros)] -macro_rules! sh_impl_signed { - ($t:ident, $f:ident) => { - // FIXME what is the correct implementation here? see discussion https://github.com/rust-lang/rust/pull/87921#discussion_r695870065 - // - // #[unstable(feature = "saturating_int_impl", issue = "87920")] - // impl Shl<$f> for Saturating<$t> { - // type Output = Saturating<$t>; - // - // #[inline] - // fn shl(self, other: $f) -> Saturating<$t> { - // if other < 0 { - // Saturating(self.0.shr((-other & self::shift_max::$t as $f) as u32)) - // } else { - // Saturating(self.0.shl((other & self::shift_max::$t as $f) as u32)) - // } - // } - // } - // forward_ref_binop! { impl Shl, shl for Saturating<$t>, $f, - // #[unstable(feature = "saturating_int_impl", issue = "87920")] } - // - // #[unstable(feature = "saturating_int_impl", issue = "87920")] - // impl ShlAssign<$f> for Saturating<$t> { - // #[inline] - // fn shl_assign(&mut self, other: $f) { - // *self = *self << other; - // } - // } - // forward_ref_op_assign! { impl ShlAssign, shl_assign for Saturating<$t>, $f } - - #[unstable(feature = "saturating_int_impl", issue = "87920")] - impl Shr<$f> for Saturating<$t> { - type Output = Saturating<$t>; - - #[inline] - fn shr(self, other: $f) -> Saturating<$t> { - if other < 0 { - Saturating(self.0.shl((-other & self::shift_max::$t as $f) as u32)) - } else { - Saturating(self.0.shr((other & self::shift_max::$t as $f) as u32)) - } - } - } - forward_ref_binop! { impl Shr, shr for Saturating<$t>, $f, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } - - #[unstable(feature = "saturating_int_impl", issue = "87920")] - impl ShrAssign<$f> for Saturating<$t> { - #[inline] - fn shr_assign(&mut self, other: $f) { - *self = *self >> other; - } - } - forward_ref_op_assign! { impl ShrAssign, shr_assign for Saturating<$t>, $f } - }; -} - -macro_rules! sh_impl_unsigned { - ($t:ident, $f:ident) => { - #[unstable(feature = "saturating_int_impl", issue = "87920")] - impl Shl<$f> for Saturating<$t> { - type Output = Saturating<$t>; - - #[inline] - fn shl(self, other: $f) -> Saturating<$t> { - Saturating(self.0.wrapping_shl(other as u32)) - } - } - forward_ref_binop! { impl Shl, shl for Saturating<$t>, $f, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } - - #[unstable(feature = "saturating_int_impl", issue = "87920")] - impl ShlAssign<$f> for Saturating<$t> { - #[inline] - fn shl_assign(&mut self, other: $f) { - *self = *self << other; - } - } - forward_ref_op_assign! { impl ShlAssign, shl_assign for Saturating<$t>, $f } - - #[unstable(feature = "saturating_int_impl", issue = "87920")] - impl Shr<$f> for Saturating<$t> { - type Output = Saturating<$t>; - - #[inline] - fn shr(self, other: $f) -> Saturating<$t> { - Saturating(self.0.wrapping_shr(other as u32)) - } - } - forward_ref_binop! { impl Shr, shr for Saturating<$t>, $f, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] - impl ShrAssign<$f> for Saturating<$t> { - #[inline] - fn shr_assign(&mut self, other: $f) { - *self = *self >> other; - } - } - forward_ref_op_assign! { impl ShrAssign, shr_assign for Saturating<$t>, $f } - }; -} - -// FIXME (#23545): uncomment the remaining impls -macro_rules! sh_impl_all { - ($($t:ident)*) => ($( - //sh_impl_unsigned! { $t, u8 } - //sh_impl_unsigned! { $t, u16 } - //sh_impl_unsigned! { $t, u32 } - //sh_impl_unsigned! { $t, u64 } - //sh_impl_unsigned! { $t, u128 } - sh_impl_unsigned! { $t, usize } - - //sh_impl_signed! { $t, i8 } - //sh_impl_signed! { $t, i16 } - //sh_impl_signed! { $t, i32 } - //sh_impl_signed! { $t, i64 } - //sh_impl_signed! { $t, i128 } - //sh_impl_signed! { $t, isize } - )*) -} - -sh_impl_all! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize } +// FIXME the correct implementation is not clear. Waiting for a real world use case at https://github.com/rust-lang/libs-team/issues/230 +// +// #[allow(unused_macros)] +// macro_rules! sh_impl_signed { +// ($t:ident, $f:ident) => { +// // FIXME what is the correct implementation here? see discussion https://github.com/rust-lang/rust/pull/87921#discussion_r695870065 +// // +// // #[unstable(feature = "saturating_int_impl", issue = "87920")] +// // impl Shl<$f> for Saturating<$t> { +// // type Output = Saturating<$t>; +// // +// // #[inline] +// // fn shl(self, other: $f) -> Saturating<$t> { +// // if other < 0 { +// // Saturating(self.0.shr((-other & self::shift_max::$t as $f) as u32)) +// // } else { +// // Saturating(self.0.shl((other & self::shift_max::$t as $f) as u32)) +// // } +// // } +// // } +// // forward_ref_binop! { impl Shl, shl for Saturating<$t>, $f, +// // #[unstable(feature = "saturating_int_impl", issue = "87920")] } +// // +// // #[unstable(feature = "saturating_int_impl", issue = "87920")] +// // impl ShlAssign<$f> for Saturating<$t> { +// // #[inline] +// // fn shl_assign(&mut self, other: $f) { +// // *self = *self << other; +// // } +// // } +// // forward_ref_op_assign! { impl ShlAssign, shl_assign for Saturating<$t>, $f } +// +// #[unstable(feature = "saturating_int_impl", issue = "87920")] +// impl Shr<$f> for Saturating<$t> { +// type Output = Saturating<$t>; +// +// #[inline] +// fn shr(self, other: $f) -> Saturating<$t> { +// if other < 0 { +// Saturating(self.0.shl((-other & self::shift_max::$t as $f) as u32)) +// } else { +// Saturating(self.0.shr((other & self::shift_max::$t as $f) as u32)) +// } +// } +// } +// forward_ref_binop! { impl Shr, shr for Saturating<$t>, $f, +// #[unstable(feature = "saturating_int_impl", issue = "87920")] } +// +// #[unstable(feature = "saturating_int_impl", issue = "87920")] +// impl ShrAssign<$f> for Saturating<$t> { +// #[inline] +// fn shr_assign(&mut self, other: $f) { +// *self = *self >> other; +// } +// } +// forward_ref_op_assign! { impl ShrAssign, shr_assign for Saturating<$t>, $f } +// }; +// } +// +// macro_rules! sh_impl_unsigned { +// ($t:ident, $f:ident) => { +// #[unstable(feature = "saturating_int_impl", issue = "87920")] +// impl Shl<$f> for Saturating<$t> { +// type Output = Saturating<$t>; +// +// #[inline] +// fn shl(self, other: $f) -> Saturating<$t> { +// Saturating(self.0.wrapping_shl(other as u32)) +// } +// } +// forward_ref_binop! { impl Shl, shl for Saturating<$t>, $f, +// #[unstable(feature = "saturating_int_impl", issue = "87920")] } +// +// #[unstable(feature = "saturating_int_impl", issue = "87920")] +// impl ShlAssign<$f> for Saturating<$t> { +// #[inline] +// fn shl_assign(&mut self, other: $f) { +// *self = *self << other; +// } +// } +// forward_ref_op_assign! { impl ShlAssign, shl_assign for Saturating<$t>, $f } +// +// #[unstable(feature = "saturating_int_impl", issue = "87920")] +// impl Shr<$f> for Saturating<$t> { +// type Output = Saturating<$t>; +// +// #[inline] +// fn shr(self, other: $f) -> Saturating<$t> { +// Saturating(self.0.wrapping_shr(other as u32)) +// } +// } +// forward_ref_binop! { impl Shr, shr for Saturating<$t>, $f, +// #[unstable(feature = "saturating_int_impl", issue = "87920")] } +// +// #[unstable(feature = "saturating_int_impl", issue = "87920")] +// impl ShrAssign<$f> for Saturating<$t> { +// #[inline] +// fn shr_assign(&mut self, other: $f) { +// *self = *self >> other; +// } +// } +// forward_ref_op_assign! { impl ShrAssign, shr_assign for Saturating<$t>, $f } +// }; +// } +// +// // FIXME (#23545): uncomment the remaining impls +// macro_rules! sh_impl_all { +// ($($t:ident)*) => ($( +// //sh_impl_unsigned! { $t, u8 } +// //sh_impl_unsigned! { $t, u16 } +// //sh_impl_unsigned! { $t, u32 } +// //sh_impl_unsigned! { $t, u64 } +// //sh_impl_unsigned! { $t, u128 } +// sh_impl_unsigned! { $t, usize } +// +// //sh_impl_signed! { $t, i8 } +// //sh_impl_signed! { $t, i16 } +// //sh_impl_signed! { $t, i32 } +// //sh_impl_signed! { $t, i64 } +// //sh_impl_signed! { $t, i128 } +// //sh_impl_signed! { $t, isize } +// )*) +// } +// +// sh_impl_all! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize } // FIXME(30524): impl Op<T> for Saturating<T>, impl OpAssign<T> for Saturating<T> macro_rules! saturating_impl { ($($t:ty)*) => ($( - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl Add for Saturating<$t> { type Output = Saturating<$t>; @@ -216,9 +220,9 @@ macro_rules! saturating_impl { } } forward_ref_binop! { impl Add, add for Saturating<$t>, Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl AddAssign for Saturating<$t> { #[inline] fn add_assign(&mut self, other: Saturating<$t>) { @@ -227,7 +231,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl AddAssign, add_assign for Saturating<$t>, Saturating<$t> } - #[unstable(feature = "saturating_int_assign_impl", issue = "92354")] + #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")] impl AddAssign<$t> for Saturating<$t> { #[inline] fn add_assign(&mut self, other: $t) { @@ -236,7 +240,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl AddAssign, add_assign for Saturating<$t>, $t } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl Sub for Saturating<$t> { type Output = Saturating<$t>; @@ -246,9 +250,9 @@ macro_rules! saturating_impl { } } forward_ref_binop! { impl Sub, sub for Saturating<$t>, Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl SubAssign for Saturating<$t> { #[inline] fn sub_assign(&mut self, other: Saturating<$t>) { @@ -257,7 +261,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl SubAssign, sub_assign for Saturating<$t>, Saturating<$t> } - #[unstable(feature = "saturating_int_assign_impl", issue = "92354")] + #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")] impl SubAssign<$t> for Saturating<$t> { #[inline] fn sub_assign(&mut self, other: $t) { @@ -266,7 +270,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl SubAssign, sub_assign for Saturating<$t>, $t } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl Mul for Saturating<$t> { type Output = Saturating<$t>; @@ -276,9 +280,9 @@ macro_rules! saturating_impl { } } forward_ref_binop! { impl Mul, mul for Saturating<$t>, Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl MulAssign for Saturating<$t> { #[inline] fn mul_assign(&mut self, other: Saturating<$t>) { @@ -287,7 +291,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl MulAssign, mul_assign for Saturating<$t>, Saturating<$t> } - #[unstable(feature = "saturating_int_assign_impl", issue = "92354")] + #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")] impl MulAssign<$t> for Saturating<$t> { #[inline] fn mul_assign(&mut self, other: $t) { @@ -301,7 +305,6 @@ macro_rules! saturating_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert_eq!(Saturating(2", stringify!($t), "), Saturating(5", stringify!($t), ") / Saturating(2));")] @@ -310,12 +313,11 @@ macro_rules! saturating_impl { /// ``` /// /// ```should_panic - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("let _ = Saturating(0", stringify!($t), ") / Saturating(0);")] /// ``` - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl Div for Saturating<$t> { type Output = Saturating<$t>; @@ -325,10 +327,10 @@ macro_rules! saturating_impl { } } forward_ref_binop! { impl Div, div for Saturating<$t>, Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl DivAssign for Saturating<$t> { #[inline] fn div_assign(&mut self, other: Saturating<$t>) { @@ -337,7 +339,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl DivAssign, div_assign for Saturating<$t>, Saturating<$t> } - #[unstable(feature = "saturating_int_assign_impl", issue = "92354")] + #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")] impl DivAssign<$t> for Saturating<$t> { #[inline] fn div_assign(&mut self, other: $t) { @@ -346,7 +348,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl DivAssign, div_assign for Saturating<$t>, $t } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl Rem for Saturating<$t> { type Output = Saturating<$t>; @@ -356,9 +358,9 @@ macro_rules! saturating_impl { } } forward_ref_binop! { impl Rem, rem for Saturating<$t>, Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl RemAssign for Saturating<$t> { #[inline] fn rem_assign(&mut self, other: Saturating<$t>) { @@ -367,7 +369,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl RemAssign, rem_assign for Saturating<$t>, Saturating<$t> } - #[unstable(feature = "saturating_int_assign_impl", issue = "92354")] + #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")] impl RemAssign<$t> for Saturating<$t> { #[inline] fn rem_assign(&mut self, other: $t) { @@ -376,7 +378,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl RemAssign, rem_assign for Saturating<$t>, $t } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl Not for Saturating<$t> { type Output = Saturating<$t>; @@ -386,9 +388,9 @@ macro_rules! saturating_impl { } } forward_ref_unop! { impl Not, not for Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl BitXor for Saturating<$t> { type Output = Saturating<$t>; @@ -398,9 +400,9 @@ macro_rules! saturating_impl { } } forward_ref_binop! { impl BitXor, bitxor for Saturating<$t>, Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl BitXorAssign for Saturating<$t> { #[inline] fn bitxor_assign(&mut self, other: Saturating<$t>) { @@ -409,7 +411,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl BitXorAssign, bitxor_assign for Saturating<$t>, Saturating<$t> } - #[unstable(feature = "saturating_int_assign_impl", issue = "92354")] + #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")] impl BitXorAssign<$t> for Saturating<$t> { #[inline] fn bitxor_assign(&mut self, other: $t) { @@ -418,7 +420,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl BitXorAssign, bitxor_assign for Saturating<$t>, $t } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl BitOr for Saturating<$t> { type Output = Saturating<$t>; @@ -428,9 +430,9 @@ macro_rules! saturating_impl { } } forward_ref_binop! { impl BitOr, bitor for Saturating<$t>, Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl BitOrAssign for Saturating<$t> { #[inline] fn bitor_assign(&mut self, other: Saturating<$t>) { @@ -439,7 +441,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl BitOrAssign, bitor_assign for Saturating<$t>, Saturating<$t> } - #[unstable(feature = "saturating_int_assign_impl", issue = "92354")] + #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")] impl BitOrAssign<$t> for Saturating<$t> { #[inline] fn bitor_assign(&mut self, other: $t) { @@ -448,7 +450,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl BitOrAssign, bitor_assign for Saturating<$t>, $t } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl BitAnd for Saturating<$t> { type Output = Saturating<$t>; @@ -458,9 +460,9 @@ macro_rules! saturating_impl { } } forward_ref_binop! { impl BitAnd, bitand for Saturating<$t>, Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl BitAndAssign for Saturating<$t> { #[inline] fn bitand_assign(&mut self, other: Saturating<$t>) { @@ -469,7 +471,7 @@ macro_rules! saturating_impl { } forward_ref_op_assign! { impl BitAndAssign, bitand_assign for Saturating<$t>, Saturating<$t> } - #[unstable(feature = "saturating_int_assign_impl", issue = "92354")] + #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")] impl BitAndAssign<$t> for Saturating<$t> { #[inline] fn bitand_assign(&mut self, other: $t) { @@ -493,12 +495,11 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert_eq!(<Saturating<", stringify!($t), ">>::MIN, Saturating(", stringify!($t), "::MIN));")] /// ``` - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const MIN: Self = Self(<$t>::MIN); /// Returns the largest value that can be represented by this integer type. @@ -508,12 +509,11 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert_eq!(<Saturating<", stringify!($t), ">>::MAX, Saturating(", stringify!($t), "::MAX));")] /// ``` - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const MAX: Self = Self(<$t>::MAX); /// Returns the size of this integer type in bits. @@ -523,12 +523,11 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert_eq!(<Saturating<", stringify!($t), ">>::BITS, ", stringify!($t), "::BITS);")] /// ``` - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const BITS: u32 = <$t>::BITS; /// Returns the number of ones in the binary representation of `self`. @@ -538,7 +537,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("let n = Saturating(0b01001100", stringify!($t), ");")] @@ -550,7 +548,8 @@ macro_rules! saturating_int_impl { #[doc(alias = "popcnt")] #[must_use = "this returns the result of the operation, \ without modifying the original"] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn count_ones(self) -> u32 { self.0.count_ones() } @@ -562,7 +561,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert_eq!(Saturating(!0", stringify!($t), ").count_zeros(), 0);")] @@ -570,7 +568,8 @@ macro_rules! saturating_int_impl { #[inline] #[must_use = "this returns the result of the operation, \ without modifying the original"] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn count_zeros(self) -> u32 { self.0.count_zeros() } @@ -582,7 +581,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("let n = Saturating(0b0101000", stringify!($t), ");")] @@ -592,7 +590,8 @@ macro_rules! saturating_int_impl { #[inline] #[must_use = "this returns the result of the operation, \ without modifying the original"] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn trailing_zeros(self) -> u32 { self.0.trailing_zeros() } @@ -609,7 +608,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// /// let n: Saturating<i64> = Saturating(0x0123456789ABCDEF); @@ -620,7 +618,8 @@ macro_rules! saturating_int_impl { #[inline] #[must_use = "this returns the result of the operation, \ without modifying the original"] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn rotate_left(self, n: u32) -> Self { Saturating(self.0.rotate_left(n)) } @@ -637,7 +636,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// /// let n: Saturating<i64> = Saturating(0x0123456789ABCDEF); @@ -648,7 +646,8 @@ macro_rules! saturating_int_impl { #[inline] #[must_use = "this returns the result of the operation, \ without modifying the original"] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn rotate_right(self, n: u32) -> Self { Saturating(self.0.rotate_right(n)) } @@ -660,7 +659,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// /// let n: Saturating<i16> = Saturating(0b0000000_01010101); @@ -674,7 +672,8 @@ macro_rules! saturating_int_impl { #[inline] #[must_use = "this returns the result of the operation, \ without modifying the original"] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn swap_bytes(self) -> Self { Saturating(self.0.swap_bytes()) } @@ -689,7 +688,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// /// let n = Saturating(0b0000000_01010101i16); @@ -701,8 +699,8 @@ macro_rules! saturating_int_impl { /// assert_eq!(m, Saturating(-22016)); /// ``` #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] - #[rustc_const_unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] pub const fn reverse_bits(self) -> Self { @@ -719,7 +717,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("let n = Saturating(0x1A", stringify!($t), ");")] @@ -732,7 +729,8 @@ macro_rules! saturating_int_impl { /// ``` #[inline] #[must_use] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn from_be(x: Self) -> Self { Saturating(<$t>::from_be(x.0)) } @@ -747,7 +745,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("let n = Saturating(0x1A", stringify!($t), ");")] @@ -760,7 +757,8 @@ macro_rules! saturating_int_impl { /// ``` #[inline] #[must_use] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn from_le(x: Self) -> Self { Saturating(<$t>::from_le(x.0)) } @@ -775,7 +773,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("let n = Saturating(0x1A", stringify!($t), ");")] @@ -787,7 +784,8 @@ macro_rules! saturating_int_impl { /// } /// ``` #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] pub const fn to_be(self) -> Self { @@ -804,7 +802,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("let n = Saturating(0x1A", stringify!($t), ");")] @@ -816,7 +813,8 @@ macro_rules! saturating_int_impl { /// } /// ``` #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] pub const fn to_le(self) -> Self { @@ -830,7 +828,6 @@ macro_rules! saturating_int_impl { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert_eq!(Saturating(3", stringify!($t), ").pow(4), Saturating(81));")] @@ -839,17 +836,17 @@ macro_rules! saturating_int_impl { /// Results that are too large are saturated: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// /// assert_eq!(Saturating(3i8).pow(5), Saturating(127)); /// assert_eq!(Saturating(3i8).pow(6), Saturating(127)); /// ``` #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] - pub fn pow(self, exp: u32) -> Self { + pub const fn pow(self, exp: u32) -> Self { Saturating(self.0.saturating_pow(exp)) } } @@ -868,7 +865,6 @@ macro_rules! saturating_int_impl_signed { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("let n = Saturating(", stringify!($t), "::MAX >> 2);")] @@ -876,7 +872,8 @@ macro_rules! saturating_int_impl_signed { /// assert_eq!(n.leading_zeros(), 3); /// ``` #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] pub const fn leading_zeros(self) -> u32 { @@ -891,7 +888,6 @@ macro_rules! saturating_int_impl_signed { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert_eq!(Saturating(100", stringify!($t), ").abs(), Saturating(100));")] @@ -901,10 +897,11 @@ macro_rules! saturating_int_impl_signed { #[doc = concat!("assert_eq!(Saturating(", stringify!($t), "::MIN).abs(), Saturating(", stringify!($t), "::MAX));")] /// ``` #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] - pub fn abs(self) -> Saturating<$t> { + pub const fn abs(self) -> Saturating<$t> { Saturating(self.0.saturating_abs()) } @@ -919,7 +916,6 @@ macro_rules! saturating_int_impl_signed { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert_eq!(Saturating(10", stringify!($t), ").signum(), Saturating(1));")] @@ -927,10 +923,11 @@ macro_rules! saturating_int_impl_signed { #[doc = concat!("assert_eq!(Saturating(-10", stringify!($t), ").signum(), Saturating(-1));")] /// ``` #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] - pub fn signum(self) -> Saturating<$t> { + pub const fn signum(self) -> Saturating<$t> { Saturating(self.0.signum()) } @@ -942,7 +939,6 @@ macro_rules! saturating_int_impl_signed { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert!(Saturating(10", stringify!($t), ").is_positive());")] @@ -950,7 +946,8 @@ macro_rules! saturating_int_impl_signed { /// ``` #[must_use] #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn is_positive(self) -> bool { self.0.is_positive() } @@ -963,7 +960,6 @@ macro_rules! saturating_int_impl_signed { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert!(Saturating(-10", stringify!($t), ").is_negative());")] @@ -971,13 +967,14 @@ macro_rules! saturating_int_impl_signed { /// ``` #[must_use] #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub const fn is_negative(self) -> bool { self.0.is_negative() } } - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] impl Neg for Saturating<$t> { type Output = Self; #[inline] @@ -986,7 +983,7 @@ macro_rules! saturating_int_impl_signed { } } forward_ref_unop! { impl Neg, neg for Saturating<$t>, - #[unstable(feature = "saturating_int_impl", issue = "87920")] } + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] } )*) } @@ -1002,7 +999,6 @@ macro_rules! saturating_int_impl_unsigned { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("let n = Saturating(", stringify!($t), "::MAX >> 2);")] @@ -1010,7 +1006,8 @@ macro_rules! saturating_int_impl_unsigned { /// assert_eq!(n.leading_zeros(), 2); /// ``` #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] pub const fn leading_zeros(self) -> u32 { @@ -1024,7 +1021,6 @@ macro_rules! saturating_int_impl_unsigned { /// Basic usage: /// /// ``` - /// #![feature(saturating_int_impl)] /// use std::num::Saturating; /// #[doc = concat!("assert!(Saturating(16", stringify!($t), ").is_power_of_two());")] @@ -1032,8 +1028,9 @@ macro_rules! saturating_int_impl_unsigned { /// ``` #[must_use] #[inline] - #[unstable(feature = "saturating_int_impl", issue = "87920")] - pub fn is_power_of_two(self) -> bool { + #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] + pub const fn is_power_of_two(self) -> bool { self.0.is_power_of_two() } diff --git a/library/core/src/primitive_docs.rs b/library/core/src/primitive_docs.rs index 80289ca08c3..2cfa896e5b9 100644 --- a/library/core/src/primitive_docs.rs +++ b/library/core/src/primitive_docs.rs @@ -612,7 +612,7 @@ mod prim_pointer {} /// statically generated up to size 32. /// /// Arrays of sizes from 1 to 12 (inclusive) implement [`From<Tuple>`], where `Tuple` -/// is a homogenous [prim@tuple] of appropriate length. +/// is a homogeneous [prim@tuple] of appropriate length. /// /// Arrays coerce to [slices (`[T]`)][slice], so a slice method may be called on /// an array. Indeed, this provides most of the API for working with arrays. @@ -676,7 +676,7 @@ mod prim_pointer {} /// move_away(roa); /// ``` /// -/// Arrays can be created from homogenous tuples of appropriate length: +/// Arrays can be created from homogeneous tuples of appropriate length: /// /// ``` /// let tuple: (u32, u32, u32) = (1, 2, 3); @@ -1065,7 +1065,7 @@ mod prim_str {} /// assert_eq!(y, 5); /// ``` /// -/// Homogenous tuples can be created from arrays of appropriate length: +/// Homogeneous tuples can be created from arrays of appropriate length: /// /// ``` /// let array: [u32; 3] = [1, 2, 3]; diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index 1955ef815ff..22ccfc0dbe9 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -152,6 +152,31 @@ //! contains further primitive shared memory types, including [`atomic`] and //! [`mpsc`], which contains the channel types for message passing. //! +//! # Use before and after `main()` +//! +//! Many parts of the standard library are expected to work before and after `main()`; +//! but this is not guaranteed or ensured by tests. It is recommended that you write your own tests +//! and run them on each platform you wish to support. +//! This means that use of `std` before/after main, especially of features that interact with the +//! OS or global state, is exempted from stability and portability guarantees and instead only +//! provided on a best-effort basis. Nevertheless bug reports are appreciated. +//! +//! On the other hand `core` and `alloc` are most likely to work in such environments with +//! the caveat that any hookable behavior such as panics, oom handling or allocators will also +//! depend on the compatibility of the hooks. +//! +//! Some features may also behave differently outside main, e.g. stdio could become unbuffered, +//! some panics might turn into aborts, backtraces might not get symbolicated or similar. +//! +//! Non-exhaustive list of known limitations: +//! +//! - after-main use of thread-locals, which also affects additional features: +//! - [`thread::current()`] +//! - [`thread::scope()`] +//! - [`sync::mpsc`] +//! - before-main stdio file descriptors are not guaranteed to be open on unix platforms +//! +//! //! [I/O]: io //! [`MIN`]: i32::MIN //! [`MAX`]: i32::MAX @@ -187,7 +212,6 @@ //! [rust-discord]: https://discord.gg/rust-lang //! [array]: prim@array //! [slice]: prim@slice - // To run std tests without x.py without ending up with two copies of std, Miri needs to be // able to "empty" this crate. See <https://github.com/rust-lang/miri-test-libstd/issues/4>. // rustc itself never sets the feature, so this line has no effect there. @@ -351,7 +375,6 @@ #![feature(get_many_mut)] #![feature(lazy_cell)] #![feature(log_syntax)] -#![feature(saturating_int_impl)] #![feature(stdsimd)] #![feature(test)] #![feature(trace_macros)] diff --git a/library/std/src/num.rs b/library/std/src/num.rs index 46064bd2837..9e021b23fec 100644 --- a/library/std/src/num.rs +++ b/library/std/src/num.rs @@ -12,7 +12,7 @@ mod tests; #[cfg(test)] mod benches; -#[unstable(feature = "saturating_int_impl", issue = "87920")] +#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub use core::num::Saturating; #[stable(feature = "rust1", since = "1.0.0")] pub use core::num::Wrapping; diff --git a/library/std/src/os/unix/fs.rs b/library/std/src/os/unix/fs.rs index b6dc1a062ed..0eb4e88cfad 100644 --- a/library/std/src/os/unix/fs.rs +++ b/library/std/src/os/unix/fs.rs @@ -155,7 +155,7 @@ pub trait FileExt { /// flag fail to respect the offset parameter, always appending to the end /// of the file instead. /// - /// It is possible to inadvertantly set this flag, like in the example below. + /// It is possible to inadvertently set this flag, like in the example below. /// Therefore, it is important to be vigilant while changing options to mitigate /// unexpected behaviour. /// diff --git a/library/std/src/primitive_docs.rs b/library/std/src/primitive_docs.rs index 80289ca08c3..2cfa896e5b9 100644 --- a/library/std/src/primitive_docs.rs +++ b/library/std/src/primitive_docs.rs @@ -612,7 +612,7 @@ mod prim_pointer {} /// statically generated up to size 32. /// /// Arrays of sizes from 1 to 12 (inclusive) implement [`From<Tuple>`], where `Tuple` -/// is a homogenous [prim@tuple] of appropriate length. +/// is a homogeneous [prim@tuple] of appropriate length. /// /// Arrays coerce to [slices (`[T]`)][slice], so a slice method may be called on /// an array. Indeed, this provides most of the API for working with arrays. @@ -676,7 +676,7 @@ mod prim_pointer {} /// move_away(roa); /// ``` /// -/// Arrays can be created from homogenous tuples of appropriate length: +/// Arrays can be created from homogeneous tuples of appropriate length: /// /// ``` /// let tuple: (u32, u32, u32) = (1, 2, 3); @@ -1065,7 +1065,7 @@ mod prim_str {} /// assert_eq!(y, 5); /// ``` /// -/// Homogenous tuples can be created from arrays of appropriate length: +/// Homogeneous tuples can be created from arrays of appropriate length: /// /// ``` /// let array: [u32; 3] = [1, 2, 3]; diff --git a/library/std/src/sync/mpsc/mod.rs b/library/std/src/sync/mpsc/mod.rs index f92bb1a4b1f..d353c7bd5de 100644 --- a/library/std/src/sync/mpsc/mod.rs +++ b/library/std/src/sync/mpsc/mod.rs @@ -626,11 +626,6 @@ impl<T> Clone for Sender<T> { } } -#[stable(feature = "rust1", since = "1.0.0")] -impl<T> Drop for Sender<T> { - fn drop(&mut self) {} -} - #[stable(feature = "mpsc_debug", since = "1.8.0")] impl<T> fmt::Debug for Sender<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { @@ -755,11 +750,6 @@ impl<T> Clone for SyncSender<T> { } } -#[stable(feature = "rust1", since = "1.0.0")] -impl<T> Drop for SyncSender<T> { - fn drop(&mut self) {} -} - #[stable(feature = "mpsc_debug", since = "1.8.0")] impl<T> fmt::Debug for SyncSender<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { @@ -1096,11 +1086,6 @@ impl<T> IntoIterator for Receiver<T> { } } -#[stable(feature = "rust1", since = "1.0.0")] -impl<T> Drop for Receiver<T> { - fn drop(&mut self) {} -} - #[stable(feature = "mpsc_debug", since = "1.8.0")] impl<T> fmt::Debug for Receiver<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs index e4581c2de78..7b26068c294 100644 --- a/library/std/src/thread/mod.rs +++ b/library/std/src/thread/mod.rs @@ -178,7 +178,7 @@ use crate::sys_common::thread; use crate::sys_common::thread_info; use crate::sys_common::thread_parking::Parker; use crate::sys_common::{AsInner, IntoInner}; -use crate::time::Duration; +use crate::time::{Duration, Instant}; #[stable(feature = "scoped_threads", since = "1.63.0")] mod scoped; @@ -872,6 +872,86 @@ pub fn sleep(dur: Duration) { imp::Thread::sleep(dur) } +/// Puts the current thread to sleep until the specified deadline has passed. +/// +/// The thread may still be asleep after the deadline specified due to +/// scheduling specifics or platform-dependent functionality. It will never +/// wake before. +/// +/// This function is blocking, and should not be used in `async` functions. +/// +/// # Platform-specific behavior +/// +/// This function uses [`sleep`] internally, see its platform-specific behaviour. +/// +/// +/// # Examples +/// +/// A simple game loop that limits the game to 60 frames per second. +/// +/// ```no_run +/// #![feature(thread_sleep_until)] +/// # use std::time::{Duration, Instant}; +/// # use std::thread; +/// # +/// # fn update() {} +/// # fn render() {} +/// # +/// let max_fps = 60.0; +/// let frame_time = Duration::from_secs_f32(1.0/max_fps); +/// let mut next_frame = Instant::now(); +/// loop { +/// thread::sleep_until(next_frame); +/// next_frame += frame_time; +/// update(); +/// render(); +/// } +/// ``` +/// +/// A slow api we must not call too fast and which takes a few +/// tries before succeeding. By using `sleep_until` the time the +/// api call takes does not influence when we retry or when we give up +/// +/// ```no_run +/// #![feature(thread_sleep_until)] +/// # use std::time::{Duration, Instant}; +/// # use std::thread; +/// # +/// # enum Status { +/// # Ready(usize), +/// # Waiting, +/// # } +/// # fn slow_web_api_call() -> Status { Status::Ready(42) } +/// # +/// # const MAX_DURATION: Duration = Duration::from_secs(10); +/// # +/// # fn try_api_call() -> Result<usize, ()> { +/// let deadline = Instant::now() + MAX_DURATION; +/// let delay = Duration::from_millis(250); +/// let mut next_attempt = Instant::now(); +/// loop { +/// if Instant::now() > deadline { +/// break Err(()); +/// } +/// if let Status::Ready(data) = slow_web_api_call() { +/// break Ok(data); +/// } +/// +/// next_attempt = deadline.min(next_attempt + delay); +/// thread::sleep_until(next_attempt); +/// } +/// # } +/// # let _data = try_api_call(); +/// ``` +#[unstable(feature = "thread_sleep_until", issue = "113752")] +pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + sleep(delay); + } +} + /// Used to ensure that `park` and `park_timeout` do not unwind, as that can /// cause undefined behaviour if not handled correctly (see #102398 for context). struct PanicGuard; diff --git a/src/bootstrap/README.md b/src/bootstrap/README.md index 253d504d7bd..548281ca506 100644 --- a/src/bootstrap/README.md +++ b/src/bootstrap/README.md @@ -1,8 +1,7 @@ # rustbuild - Bootstrapping Rust -This is an in-progress README which is targeted at helping to explain how Rust -is bootstrapped and in general, some of the technical details of the build -system. +This README is aimed at helping to explain how Rust is bootstrapped and in general, +some of the technical details of the build system. Note that this README only covers internal information, not how to use the tool. Please check [bootstrapping dev guide][bootstrapping-dev-guide] for further information. diff --git a/src/bootstrap/bin/_helper.rs b/src/bootstrap/bin/_helper.rs new file mode 100644 index 00000000000..09aa471dba4 --- /dev/null +++ b/src/bootstrap/bin/_helper.rs @@ -0,0 +1,24 @@ +/// Parses the value of the "RUSTC_VERBOSE" environment variable and returns it as a `usize`. +/// If it was not defined, returns 0 by default. +/// +/// Panics if "RUSTC_VERBOSE" is defined with the value that is not an unsigned integer. +fn parse_rustc_verbose() -> usize { + use std::str::FromStr; + + match std::env::var("RUSTC_VERBOSE") { + Ok(s) => usize::from_str(&s).expect("RUSTC_VERBOSE should be an integer"), + Err(_) => 0, + } +} + +/// Parses the value of the "RUSTC_STAGE" environment variable and returns it as a `String`. +/// +/// If "RUSTC_STAGE" was not set, the program will be terminated with 101. +fn parse_rustc_stage() -> String { + std::env::var("RUSTC_STAGE").unwrap_or_else(|_| { + // Don't panic here; it's reasonable to try and run these shims directly. Give a helpful error instead. + eprintln!("rustc shim: fatal: RUSTC_STAGE was not set"); + eprintln!("rustc shim: note: use `x.py build -vvv` to see all environment variables set by bootstrap"); + exit(101); + }) +} diff --git a/src/bootstrap/bin/rustc.rs b/src/bootstrap/bin/rustc.rs index 10718aeb89f..20cd63b966b 100644 --- a/src/bootstrap/bin/rustc.rs +++ b/src/bootstrap/bin/rustc.rs @@ -16,27 +16,25 @@ //! never get replaced. include!("../dylib_util.rs"); +include!("./_helper.rs"); use std::env; use std::path::PathBuf; use std::process::{exit, Child, Command}; -use std::str::FromStr; use std::time::Instant; fn main() { let args = env::args_os().skip(1).collect::<Vec<_>>(); let arg = |name| args.windows(2).find(|args| args[0] == name).and_then(|args| args[1].to_str()); + let stage = parse_rustc_stage(); + let verbose = parse_rustc_verbose(); + // Detect whether or not we're a build script depending on whether --target // is passed (a bit janky...) let target = arg("--target"); let version = args.iter().find(|w| &**w == "-vV"); - let verbose = match env::var("RUSTC_VERBOSE") { - Ok(s) => usize::from_str(&s).expect("RUSTC_VERBOSE should be an integer"), - Err(_) => 0, - }; - // Use a different compiler for build scripts, since there may not yet be a // libstd for the real compiler to use. However, if Cargo is attempting to // determine the version of the compiler, the real compiler needs to be @@ -47,12 +45,7 @@ fn main() { } else { ("RUSTC_REAL", "RUSTC_LIBDIR") }; - let stage = env::var("RUSTC_STAGE").unwrap_or_else(|_| { - // Don't panic here; it's reasonable to try and run these shims directly. Give a helpful error instead. - eprintln!("rustc shim: fatal: RUSTC_STAGE was not set"); - eprintln!("rustc shim: note: use `x.py build -vvv` to see all environment variables set by bootstrap"); - exit(101); - }); + let sysroot = env::var_os("RUSTC_SYSROOT").expect("RUSTC_SYSROOT was not set"); let on_fail = env::var_os("RUSTC_ON_FAIL").map(Command::new); diff --git a/src/bootstrap/bin/rustdoc.rs b/src/bootstrap/bin/rustdoc.rs index 4ecb3349816..6561c1c1933 100644 --- a/src/bootstrap/bin/rustdoc.rs +++ b/src/bootstrap/bin/rustdoc.rs @@ -9,14 +9,14 @@ use std::process::{exit, Command}; include!("../dylib_util.rs"); +include!("./_helper.rs"); + fn main() { let args = env::args_os().skip(1).collect::<Vec<_>>(); - let stage = env::var("RUSTC_STAGE").unwrap_or_else(|_| { - // Don't panic here; it's reasonable to try and run these shims directly. Give a helpful error instead. - eprintln!("rustc shim: fatal: RUSTC_STAGE was not set"); - eprintln!("rustc shim: note: use `x.py build -vvv` to see all environment variables set by bootstrap"); - exit(101); - }); + + let stage = parse_rustc_stage(); + let verbose = parse_rustc_verbose(); + let rustdoc = env::var_os("RUSTDOC_REAL").expect("RUSTDOC_REAL was not set"); let libdir = env::var_os("RUSTDOC_LIBDIR").expect("RUSTDOC_LIBDIR was not set"); let sysroot = env::var_os("RUSTC_SYSROOT").expect("RUSTC_SYSROOT was not set"); @@ -25,13 +25,6 @@ fn main() { // is passed (a bit janky...) let target = args.windows(2).find(|w| &*w[0] == "--target").and_then(|w| w[1].to_str()); - use std::str::FromStr; - - let verbose = match env::var("RUSTC_VERBOSE") { - Ok(s) => usize::from_str(&s).expect("RUSTC_VERBOSE should be an integer"), - Err(_) => 0, - }; - let mut dylib_path = dylib_path(); dylib_path.insert(0, PathBuf::from(libdir.clone())); diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py index e4c76226454..a9aa7524e8b 100644 --- a/src/bootstrap/bootstrap.py +++ b/src/bootstrap/bootstrap.py @@ -312,6 +312,14 @@ def default_build_triple(verbose): # non-standard string (e.g. gnuwin32 tools returns `windows32`). In # these cases, fall back to using sys.platform. return 'x86_64-pc-windows-msvc' + elif kernel == 'AIX': + # `uname -m` returns the machine ID rather than machine hardware on AIX, + # so we are unable to use cputype to form triple. AIX 7.2 and + # above supports 32-bit and 64-bit mode simultaneously and `uname -p` + # returns `powerpc`, however we only supports `powerpc64-ibm-aix` in + # rust on AIX. For above reasons, kerneltype_mapper and cputype_mapper + # are not used to infer AIX's triple. + return 'powerpc64-ibm-aix' else: err = "unknown OS type: {}".format(kernel) sys.exit(err) diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs index 91fa5ec6633..50f1007e1ff 100644 --- a/src/bootstrap/builder.rs +++ b/src/bootstrap/builder.rs @@ -525,7 +525,7 @@ impl<'a> ShouldRun<'a> { .iter() .map(|p| { // assert only if `p` isn't submodule - if !submodules_paths.iter().find(|sm_p| p.contains(*sm_p)).is_some() { + if submodules_paths.iter().find(|sm_p| p.contains(*sm_p)).is_none() { assert!( self.builder.src.join(p).exists(), "`should_run.paths` should correspond to real on-disk paths - use `alias` if there is no relevant path: {}", diff --git a/src/bootstrap/compile.rs b/src/bootstrap/compile.rs index 9c68e5a78d8..2686a8c1752 100644 --- a/src/bootstrap/compile.rs +++ b/src/bootstrap/compile.rs @@ -876,10 +876,8 @@ impl Step for Rustc { cargo.rustflag("-Clto=off"); } } - } else { - if builder.config.rust_lto == RustcLto::Off { - cargo.rustflag("-Clto=off"); - } + } else if builder.config.rust_lto == RustcLto::Off { + cargo.rustflag("-Clto=off"); } for krate in &*self.crates { diff --git a/src/bootstrap/config.rs b/src/bootstrap/config.rs index e5fdac3ceda..176ef8e92db 100644 --- a/src/bootstrap/config.rs +++ b/src/bootstrap/config.rs @@ -322,33 +322,23 @@ pub struct RustfmtMetadata { pub version: String, } -#[derive(Clone, Debug)] +#[derive(Clone, Debug, Default)] pub enum RustfmtState { SystemToolchain(PathBuf), Downloaded(PathBuf), Unavailable, + #[default] LazyEvaluated, } -impl Default for RustfmtState { - fn default() -> Self { - RustfmtState::LazyEvaluated - } -} - -#[derive(Debug, Clone, Copy, PartialEq)] +#[derive(Debug, Default, Clone, Copy, PartialEq)] pub enum LlvmLibunwind { + #[default] No, InTree, System, } -impl Default for LlvmLibunwind { - fn default() -> Self { - Self::No - } -} - impl FromStr for LlvmLibunwind { type Err = String; @@ -362,19 +352,14 @@ impl FromStr for LlvmLibunwind { } } -#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] +#[derive(Default, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] pub enum SplitDebuginfo { Packed, Unpacked, + #[default] Off, } -impl Default for SplitDebuginfo { - fn default() -> Self { - SplitDebuginfo::Off - } -} - impl std::str::FromStr for SplitDebuginfo { type Err = (); @@ -1529,7 +1514,7 @@ impl Config { let asserts = llvm_assertions.unwrap_or(false); config.llvm_from_ci = match llvm.download_ci_llvm { Some(StringOrBool::String(s)) => { - assert!(s == "if-available", "unknown option `{s}` for download-ci-llvm"); + assert_eq!(s, "if-available", "unknown option `{s}` for download-ci-llvm"); crate::llvm::is_ci_llvm_available(&config, asserts) } Some(StringOrBool::Bool(b)) => b, diff --git a/src/bootstrap/config/tests.rs b/src/bootstrap/config/tests.rs index b8f3be96062..aac76cdcbcf 100644 --- a/src/bootstrap/config/tests.rs +++ b/src/bootstrap/config/tests.rs @@ -136,7 +136,7 @@ build-config = {} "setting string value without quotes" ); assert_eq!(config.gdb, Some("bar".into()), "setting string value with quotes"); - assert_eq!(config.deny_warnings, false, "setting boolean value"); + assert!(!config.deny_warnings, "setting boolean value"); assert_eq!( config.tools, Some(["cargo".to_string()].into_iter().collect()), @@ -181,13 +181,13 @@ fn profile_user_dist() { #[test] fn rust_optimize() { - assert_eq!(parse("").rust_optimize.is_release(), true); - assert_eq!(parse("rust.optimize = false").rust_optimize.is_release(), false); - assert_eq!(parse("rust.optimize = true").rust_optimize.is_release(), true); - assert_eq!(parse("rust.optimize = 0").rust_optimize.is_release(), false); - assert_eq!(parse("rust.optimize = 1").rust_optimize.is_release(), true); + assert!(parse("").rust_optimize.is_release()); + assert!(!parse("rust.optimize = false").rust_optimize.is_release()); + assert!(parse("rust.optimize = true").rust_optimize.is_release()); + assert!(!parse("rust.optimize = 0").rust_optimize.is_release()); + assert!(parse("rust.optimize = 1").rust_optimize.is_release()); + assert!(parse("rust.optimize = \"s\"").rust_optimize.is_release()); assert_eq!(parse("rust.optimize = 1").rust_optimize.get_opt_level(), Some("1".to_string())); - assert_eq!(parse("rust.optimize = \"s\"").rust_optimize.is_release(), true); assert_eq!(parse("rust.optimize = \"s\"").rust_optimize.get_opt_level(), Some("s".to_string())); } diff --git a/src/bootstrap/download.rs b/src/bootstrap/download.rs index 9489297d67d..8e9614ec89a 100644 --- a/src/bootstrap/download.rs +++ b/src/bootstrap/download.rs @@ -441,7 +441,7 @@ impl Config { } pub(crate) fn download_beta_toolchain(&self) { - self.verbose(&format!("downloading stage0 beta artifacts")); + self.verbose("downloading stage0 beta artifacts"); let date = &self.stage0_metadata.compiler.date; let version = &self.stage0_metadata.compiler.version; diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs index 671d25484d0..1e001fae8ab 100644 --- a/src/bootstrap/lib.rs +++ b/src/bootstrap/lib.rs @@ -116,7 +116,7 @@ pub const VERSION: usize = 2; /// Extra --check-cfg to add when building /// (Mode restriction, config name, config values (if any)) -const EXTRA_CHECK_CFGS: &[(Option<Mode>, &'static str, Option<&[&'static str]>)] = &[ +const EXTRA_CHECK_CFGS: &[(Option<Mode>, &str, Option<&[&'static str]>)] = &[ (None, "bootstrap", None), (Some(Mode::Rustc), "parallel_compiler", None), (Some(Mode::ToolRustc), "parallel_compiler", None), @@ -1757,10 +1757,11 @@ to download LLVM rather than building it. // // In these cases we automatically enable Ninja if we find it in the // environment. - if !self.config.ninja_in_file && self.config.build.contains("msvc") { - if cmd_finder.maybe_have("ninja").is_some() { - return true; - } + if !self.config.ninja_in_file + && self.config.build.contains("msvc") + && cmd_finder.maybe_have("ninja").is_some() + { + return true; } self.config.ninja_in_file diff --git a/src/bootstrap/llvm.rs b/src/bootstrap/llvm.rs index aefed501513..07288a1863a 100644 --- a/src/bootstrap/llvm.rs +++ b/src/bootstrap/llvm.rs @@ -155,7 +155,7 @@ pub(crate) fn detect_llvm_sha(config: &Config, is_git: bool) -> String { "".to_owned() }; - if &llvm_sha == "" { + if llvm_sha.is_empty() { eprintln!("error: could not find commit hash for downloading LLVM"); eprintln!("help: maybe your repository history is too shallow?"); eprintln!("help: consider disabling `download-ci-llvm`"); @@ -208,10 +208,10 @@ pub(crate) fn is_ci_llvm_available(config: &Config, asserts: bool) -> bool { ("x86_64-unknown-netbsd", false), ]; - if !supported_platforms.contains(&(&*config.build.triple, asserts)) { - if asserts == true || !supported_platforms.contains(&(&*config.build.triple, true)) { - return false; - } + if !supported_platforms.contains(&(&*config.build.triple, asserts)) + && (asserts || !supported_platforms.contains(&(&*config.build.triple, true))) + { + return false; } if is_ci_llvm_modified(config) { @@ -497,11 +497,11 @@ impl Step for Llvm { let mut cmd = Command::new(&res.llvm_config); let version = output(cmd.arg("--version")); let major = version.split('.').next().unwrap(); - let lib_name = match &llvm_version_suffix { + + match &llvm_version_suffix { Some(version_suffix) => format!("libLLVM-{major}{version_suffix}.{extension}"), None => format!("libLLVM-{major}.{extension}"), - }; - lib_name + } }; // When building LLVM with LLVM_LINK_LLVM_DYLIB for macOS, an unversioned @@ -756,13 +756,15 @@ fn configure_cmake( // For distribution we want the LLVM tools to be *statically* linked to libstdc++. // We also do this if the user explicitly requested static libstdc++. - if builder.config.llvm_static_stdcpp { - if !target.contains("msvc") && !target.contains("netbsd") && !target.contains("solaris") { - if target.contains("apple") || target.contains("windows") { - ldflags.push_all("-static-libstdc++"); - } else { - ldflags.push_all("-Wl,-Bsymbolic -static-libstdc++"); - } + if builder.config.llvm_static_stdcpp + && !target.contains("msvc") + && !target.contains("netbsd") + && !target.contains("solaris") + { + if target.contains("apple") || target.contains("windows") { + ldflags.push_all("-static-libstdc++"); + } else { + ldflags.push_all("-Wl,-Bsymbolic -static-libstdc++"); } } diff --git a/src/bootstrap/sanity.rs b/src/bootstrap/sanity.rs index 144e2acd09e..0febdf250d3 100644 --- a/src/bootstrap/sanity.rs +++ b/src/bootstrap/sanity.rs @@ -95,20 +95,19 @@ pub fn check(build: &mut Build) { .unwrap_or(true) }) .any(|build_llvm_ourselves| build_llvm_ourselves); + let need_cmake = building_llvm || build.config.any_sanitizers_enabled(); - if need_cmake { - if cmd_finder.maybe_have("cmake").is_none() { - eprintln!( - " + if need_cmake && cmd_finder.maybe_have("cmake").is_none() { + eprintln!( + " Couldn't find required command: cmake You should install cmake, or set `download-ci-llvm = true` in the `[llvm]` section of `config.toml` to download LLVM rather than building it. " - ); - crate::exit!(1); - } + ); + crate::exit!(1); } build.config.python = build @@ -202,10 +201,10 @@ than building it. .entry(*target) .or_insert_with(|| Target::from_triple(&target.triple)); - if target.contains("-none-") || target.contains("nvptx") { - if build.no_std(*target) == Some(false) { - panic!("All the *-none-* and nvptx* targets are no-std targets") - } + if (target.contains("-none-") || target.contains("nvptx")) + && build.no_std(*target) == Some(false) + { + panic!("All the *-none-* and nvptx* targets are no-std targets") } // Some environments don't want or need these tools, such as when testing Miri. diff --git a/src/bootstrap/setup.rs b/src/bootstrap/setup.rs index 30730f50491..ef0234957b5 100644 --- a/src/bootstrap/setup.rs +++ b/src/bootstrap/setup.rs @@ -33,6 +33,7 @@ static SETTINGS_HASHES: &[&str] = &[ "af1b5efe196aed007577899db9dae15d6dbc923d6fa42fa0934e68617ba9bbe0", "3468fea433c25fff60be6b71e8a215a732a7b1268b6a83bf10d024344e140541", "47d227f424bf889b0d899b9cc992d5695e1b78c406e183cd78eafefbe5488923", + "b526bd58d0262dd4dda2bff5bc5515b705fb668a46235ace3e057f807963a11a", ]; static RUST_ANALYZER_SETTINGS: &str = include_str!("../etc/rust_analyzer_settings.json"); diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs index 96611ca873a..ba030f0f525 100644 --- a/src/bootstrap/test.rs +++ b/src/bootstrap/test.rs @@ -1139,16 +1139,14 @@ help: to skip test's attempt to check tidiness, pass `--skip src/tools/tidy` to .map(|filename| builder.src.join("src/etc/completions").join(filename)); if builder.config.cmd.bless() { builder.ensure(crate::run::GenerateCompletions); - } else { - if crate::flags::get_completion(shells::Bash, &bash).is_some() - || crate::flags::get_completion(shells::Fish, &fish).is_some() - || crate::flags::get_completion(shells::PowerShell, &powershell).is_some() - { - eprintln!( - "x.py completions were changed; run `x.py run generate-completions` to update them" - ); - crate::exit!(1); - } + } else if crate::flags::get_completion(shells::Bash, &bash).is_some() + || crate::flags::get_completion(shells::Fish, &fish).is_some() + || crate::flags::get_completion(shells::PowerShell, &powershell).is_some() + { + eprintln!( + "x.py completions were changed; run `x.py run generate-completions` to update them" + ); + crate::exit!(1); } } @@ -1378,7 +1376,7 @@ impl Step for MirOpt { let run = |target| { builder.ensure(Compiletest { compiler: self.compiler, - target: target, + target, mode: "mir-opt", suite: "mir-opt", path: "tests/mir-opt", diff --git a/src/ci/docker/host-x86_64/arm-android/Dockerfile b/src/ci/docker/host-x86_64/arm-android/Dockerfile index b6b4fdc67a9..db11700af28 100644 --- a/src/ci/docker/host-x86_64/arm-android/Dockerfile +++ b/src/ci/docker/host-x86_64/arm-android/Dockerfile @@ -1,4 +1,4 @@ -FROM ubuntu:22.10 +FROM ubuntu:23.04 ARG DEBIAN_FRONTEND=noninteractive COPY scripts/android-base-apt-get.sh /scripts/ diff --git a/src/ci/docker/host-x86_64/dist-android/Dockerfile b/src/ci/docker/host-x86_64/dist-android/Dockerfile index 9c6f648896b..b09b6edb01a 100644 --- a/src/ci/docker/host-x86_64/dist-android/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-android/Dockerfile @@ -1,4 +1,4 @@ -FROM ubuntu:22.10 +FROM ubuntu:23.04 COPY scripts/android-base-apt-get.sh /scripts/ RUN sh /scripts/android-base-apt-get.sh diff --git a/src/ci/docker/host-x86_64/dist-various-1/install-x86_64-redox.sh b/src/ci/docker/host-x86_64/dist-various-1/install-x86_64-redox.sh index dad97922338..f86402b0180 100755 --- a/src/ci/docker/host-x86_64/dist-various-1/install-x86_64-redox.sh +++ b/src/ci/docker/host-x86_64/dist-various-1/install-x86_64-redox.sh @@ -2,5 +2,5 @@ set -ex -curl https://static.redox-os.org/toolchain/x86_64-unknown-redox/relibc-install.tar.gz | \ +curl https://ci-mirrors.rust-lang.org/rustc/2022-11-27-relibc-install.tar.gz | \ tar --extract --gzip --directory /usr/local diff --git a/src/etc/rust_analyzer_settings.json b/src/etc/rust_analyzer_settings.json index 6e5e2c35005..32a04cfd5d1 100644 --- a/src/etc/rust_analyzer_settings.json +++ b/src/etc/rust_analyzer_settings.json @@ -16,10 +16,10 @@ "compiler/rustc_codegen_gcc/Cargo.toml" ], "rust-analyzer.rustfmt.overrideCommand": [ - "./build/host/rustfmt/bin/rustfmt", + "${workspaceFolder}/build/host/rustfmt/bin/rustfmt", "--edition=2021" ], - "rust-analyzer.procMacro.server": "./build/host/stage0/libexec/rust-analyzer-proc-macro-srv", + "rust-analyzer.procMacro.server": "${workspaceFolder}/build/host/stage0/libexec/rust-analyzer-proc-macro-srv", "rust-analyzer.procMacro.enable": true, "rust-analyzer.cargo.buildScripts.enable": true, "rust-analyzer.cargo.buildScripts.invocationLocation": "root", diff --git a/src/librustdoc/doctest.rs b/src/librustdoc/doctest.rs index ea87268877f..24597c3aca3 100644 --- a/src/librustdoc/doctest.rs +++ b/src/librustdoc/doctest.rs @@ -1243,6 +1243,7 @@ impl<'a, 'hir, 'tcx> HirCollector<'a, 'hir, 'tcx> { def_id.to_def_id(), span_of_fragments(&attrs.doc_strings).unwrap_or(sp), )), + self.tcx.features().custom_code_classes_in_docs, ); } diff --git a/src/librustdoc/externalfiles.rs b/src/librustdoc/externalfiles.rs index f0ebb8e5a39..b34b69b1f15 100644 --- a/src/librustdoc/externalfiles.rs +++ b/src/librustdoc/externalfiles.rs @@ -46,6 +46,8 @@ impl ExternalHtml { edition, playground, heading_offset: HeadingOffset::H2, + // For external files, it'll be disabled until the feature is enabled by default. + custom_code_classes_in_docs: false, } .into_string() ); @@ -61,6 +63,8 @@ impl ExternalHtml { edition, playground, heading_offset: HeadingOffset::H2, + // For external files, it'll be disabled until the feature is enabled by default. + custom_code_classes_in_docs: false, } .into_string() ); diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs index 177fb1a9426..59958fbaef9 100644 --- a/src/librustdoc/html/markdown.rs +++ b/src/librustdoc/html/markdown.rs @@ -20,6 +20,7 @@ //! edition: Edition::Edition2015, //! playground: &None, //! heading_offset: HeadingOffset::H2, +//! custom_code_classes_in_docs: true, //! }; //! let html = md.into_string(); //! // ... something using html @@ -95,6 +96,8 @@ pub struct Markdown<'a> { /// Offset at which we render headings. /// E.g. if `heading_offset: HeadingOffset::H2`, then `# something` renders an `<h2>`. pub heading_offset: HeadingOffset, + /// `true` if the `custom_code_classes_in_docs` feature is enabled. + pub custom_code_classes_in_docs: bool, } /// A struct like `Markdown` that renders the markdown with a table of contents. pub(crate) struct MarkdownWithToc<'a> { @@ -103,6 +106,8 @@ pub(crate) struct MarkdownWithToc<'a> { pub(crate) error_codes: ErrorCodes, pub(crate) edition: Edition, pub(crate) playground: &'a Option<Playground>, + /// `true` if the `custom_code_classes_in_docs` feature is enabled. + pub(crate) custom_code_classes_in_docs: bool, } /// A tuple struct like `Markdown` that renders the markdown escaping HTML tags /// and includes no paragraph tags. @@ -203,6 +208,7 @@ struct CodeBlocks<'p, 'a, I: Iterator<Item = Event<'a>>> { // Information about the playground if a URL has been specified, containing an // optional crate name and the URL. playground: &'p Option<Playground>, + custom_code_classes_in_docs: bool, } impl<'p, 'a, I: Iterator<Item = Event<'a>>> CodeBlocks<'p, 'a, I> { @@ -211,8 +217,15 @@ impl<'p, 'a, I: Iterator<Item = Event<'a>>> CodeBlocks<'p, 'a, I> { error_codes: ErrorCodes, edition: Edition, playground: &'p Option<Playground>, + custom_code_classes_in_docs: bool, ) -> Self { - CodeBlocks { inner: iter, check_error_codes: error_codes, edition, playground } + CodeBlocks { + inner: iter, + check_error_codes: error_codes, + edition, + playground, + custom_code_classes_in_docs, + } } } @@ -242,8 +255,12 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for CodeBlocks<'_, 'a, I> { let parse_result = match kind { CodeBlockKind::Fenced(ref lang) => { - let parse_result = - LangString::parse_without_check(lang, self.check_error_codes, false); + let parse_result = LangString::parse_without_check( + lang, + self.check_error_codes, + false, + self.custom_code_classes_in_docs, + ); if !parse_result.rust { let added_classes = parse_result.added_classes; let lang_string = if let Some(lang) = parse_result.unknown.first() { @@ -725,8 +742,17 @@ pub(crate) fn find_testable_code<T: doctest::Tester>( error_codes: ErrorCodes, enable_per_target_ignores: bool, extra_info: Option<&ExtraInfo<'_>>, + custom_code_classes_in_docs: bool, ) { - find_codes(doc, tests, error_codes, enable_per_target_ignores, extra_info, false) + find_codes( + doc, + tests, + error_codes, + enable_per_target_ignores, + extra_info, + false, + custom_code_classes_in_docs, + ) } pub(crate) fn find_codes<T: doctest::Tester>( @@ -736,6 +762,7 @@ pub(crate) fn find_codes<T: doctest::Tester>( enable_per_target_ignores: bool, extra_info: Option<&ExtraInfo<'_>>, include_non_rust: bool, + custom_code_classes_in_docs: bool, ) { let mut parser = Parser::new(doc).into_offset_iter(); let mut prev_offset = 0; @@ -754,6 +781,7 @@ pub(crate) fn find_codes<T: doctest::Tester>( error_codes, enable_per_target_ignores, extra_info, + custom_code_classes_in_docs, ) } } @@ -1153,8 +1181,15 @@ impl LangString { string: &str, allow_error_code_check: ErrorCodes, enable_per_target_ignores: bool, + custom_code_classes_in_docs: bool, ) -> Self { - Self::parse(string, allow_error_code_check, enable_per_target_ignores, None) + Self::parse( + string, + allow_error_code_check, + enable_per_target_ignores, + None, + custom_code_classes_in_docs, + ) } fn parse( @@ -1162,6 +1197,7 @@ impl LangString { allow_error_code_check: ErrorCodes, enable_per_target_ignores: bool, extra: Option<&ExtraInfo<'_>>, + custom_code_classes_in_docs: bool, ) -> Self { let allow_error_code_check = allow_error_code_check.as_bool(); let mut seen_rust_tags = false; @@ -1197,7 +1233,11 @@ impl LangString { seen_rust_tags = true; } LangStringToken::LangToken("custom") => { - seen_custom_tag = true; + if custom_code_classes_in_docs { + seen_custom_tag = true; + } else { + seen_other_tags = true; + } } LangStringToken::LangToken("test_harness") => { data.test_harness = true; @@ -1268,11 +1308,16 @@ impl LangString { data.unknown.push(x.to_owned()); } LangStringToken::KeyValueAttribute(key, value) => { - if key == "class" { - data.added_classes.push(value.to_owned()); - } else if let Some(extra) = extra { - extra - .error_invalid_codeblock_attr(format!("unsupported attribute `{key}`")); + if custom_code_classes_in_docs { + if key == "class" { + data.added_classes.push(value.to_owned()); + } else if let Some(extra) = extra { + extra.error_invalid_codeblock_attr(format!( + "unsupported attribute `{key}`" + )); + } + } else { + seen_other_tags = true; } } LangStringToken::ClassAttribute(class) => { @@ -1302,6 +1347,7 @@ impl Markdown<'_> { edition, playground, heading_offset, + custom_code_classes_in_docs, } = self; // This is actually common enough to special-case @@ -1324,7 +1370,7 @@ impl Markdown<'_> { let p = Footnotes::new(p); let p = LinkReplacer::new(p.map(|(ev, _)| ev), links); let p = TableWrapper::new(p); - let p = CodeBlocks::new(p, codes, edition, playground); + let p = CodeBlocks::new(p, codes, edition, playground, custom_code_classes_in_docs); html::push_html(&mut s, p); s @@ -1333,7 +1379,14 @@ impl Markdown<'_> { impl MarkdownWithToc<'_> { pub(crate) fn into_string(self) -> String { - let MarkdownWithToc { content: md, ids, error_codes: codes, edition, playground } = self; + let MarkdownWithToc { + content: md, + ids, + error_codes: codes, + edition, + playground, + custom_code_classes_in_docs, + } = self; let p = Parser::new_ext(md, main_body_opts()).into_offset_iter(); @@ -1345,7 +1398,7 @@ impl MarkdownWithToc<'_> { let p = HeadingLinks::new(p, Some(&mut toc), ids, HeadingOffset::H1); let p = Footnotes::new(p); let p = TableWrapper::new(p.map(|(ev, _)| ev)); - let p = CodeBlocks::new(p, codes, edition, playground); + let p = CodeBlocks::new(p, codes, edition, playground, custom_code_classes_in_docs); html::push_html(&mut s, p); } @@ -1786,7 +1839,11 @@ pub(crate) struct RustCodeBlock { /// Returns a range of bytes for each code block in the markdown that is tagged as `rust` or /// untagged (and assumed to be rust). -pub(crate) fn rust_code_blocks(md: &str, extra_info: &ExtraInfo<'_>) -> Vec<RustCodeBlock> { +pub(crate) fn rust_code_blocks( + md: &str, + extra_info: &ExtraInfo<'_>, + custom_code_classes_in_docs: bool, +) -> Vec<RustCodeBlock> { let mut code_blocks = vec![]; if md.is_empty() { @@ -1803,7 +1860,13 @@ pub(crate) fn rust_code_blocks(md: &str, extra_info: &ExtraInfo<'_>) -> Vec<Rust let lang_string = if syntax.is_empty() { Default::default() } else { - LangString::parse(&*syntax, ErrorCodes::Yes, false, Some(extra_info)) + LangString::parse( + &*syntax, + ErrorCodes::Yes, + false, + Some(extra_info), + custom_code_classes_in_docs, + ) }; if !lang_string.rust { continue; diff --git a/src/librustdoc/html/markdown/tests.rs b/src/librustdoc/html/markdown/tests.rs index 7d89cb0c4e6..32957ac57fa 100644 --- a/src/librustdoc/html/markdown/tests.rs +++ b/src/librustdoc/html/markdown/tests.rs @@ -49,7 +49,7 @@ fn test_unique_id() { fn test_lang_string_parse() { fn t(lg: LangString) { let s = &lg.original; - assert_eq!(LangString::parse(s, ErrorCodes::Yes, true, None), lg) + assert_eq!(LangString::parse(s, ErrorCodes::Yes, true, None, true), lg) } t(Default::default()); @@ -290,6 +290,7 @@ fn test_header() { edition: DEFAULT_EDITION, playground: &None, heading_offset: HeadingOffset::H2, + custom_code_classes_in_docs: true, } .into_string(); assert_eq!(output, expect, "original: {}", input); @@ -329,6 +330,7 @@ fn test_header_ids_multiple_blocks() { edition: DEFAULT_EDITION, playground: &None, heading_offset: HeadingOffset::H2, + custom_code_classes_in_docs: true, } .into_string(); assert_eq!(output, expect, "original: {}", input); @@ -433,7 +435,7 @@ fn test_find_testable_code_line() { } } let mut lines = Vec::<usize>::new(); - find_testable_code(input, &mut lines, ErrorCodes::No, false, None); + find_testable_code(input, &mut lines, ErrorCodes::No, false, None, true); assert_eq!(lines, expect); } @@ -458,6 +460,7 @@ fn test_ascii_with_prepending_hashtag() { edition: DEFAULT_EDITION, playground: &None, heading_offset: HeadingOffset::H2, + custom_code_classes_in_docs: true, } .into_string(); assert_eq!(output, expect, "original: {}", input); diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs index 5adbecd6d04..f70f59d3be3 100644 --- a/src/librustdoc/html/render/mod.rs +++ b/src/librustdoc/html/render/mod.rs @@ -403,7 +403,8 @@ fn scrape_examples_help(shared: &SharedContext<'_>) -> String { error_codes: shared.codes, edition: shared.edition(), playground: &shared.playground, - heading_offset: HeadingOffset::H1 + heading_offset: HeadingOffset::H1, + custom_code_classes_in_docs: false, } .into_string() ) @@ -437,6 +438,7 @@ fn render_markdown<'a, 'cx: 'a>( heading_offset: HeadingOffset, ) -> impl fmt::Display + 'a + Captures<'cx> { display_fn(move |f| { + let custom_code_classes_in_docs = cx.tcx().features().custom_code_classes_in_docs; write!( f, "<div class=\"docblock\">{}</div>", @@ -448,6 +450,7 @@ fn render_markdown<'a, 'cx: 'a>( edition: cx.shared.edition(), playground: &cx.shared.playground, heading_offset, + custom_code_classes_in_docs, } .into_string() ) @@ -1778,6 +1781,7 @@ fn render_impl( </div>", ); } + let custom_code_classes_in_docs = cx.tcx().features().custom_code_classes_in_docs; write!( w, "<div class=\"docblock\">{}</div>", @@ -1788,7 +1792,8 @@ fn render_impl( error_codes: cx.shared.codes, edition: cx.shared.edition(), playground: &cx.shared.playground, - heading_offset: HeadingOffset::H4 + heading_offset: HeadingOffset::H4, + custom_code_classes_in_docs, } .into_string() ); diff --git a/src/librustdoc/markdown.rs b/src/librustdoc/markdown.rs index 526eea30478..b74a9392f27 100644 --- a/src/librustdoc/markdown.rs +++ b/src/librustdoc/markdown.rs @@ -80,6 +80,8 @@ pub(crate) fn render<P: AsRef<Path>>( error_codes, edition, playground: &playground, + // For markdown files, it'll be disabled until the feature is enabled by default. + custom_code_classes_in_docs: false, } .into_string() } else { @@ -91,6 +93,8 @@ pub(crate) fn render<P: AsRef<Path>>( edition, playground: &playground, heading_offset: HeadingOffset::H1, + // For markdown files, it'll be disabled until the feature is enabled by default. + custom_code_classes_in_docs: false, } .into_string() }; @@ -154,7 +158,15 @@ pub(crate) fn test(options: Options) -> Result<(), String> { collector.set_position(DUMMY_SP); let codes = ErrorCodes::from(options.unstable_features.is_nightly_build()); - find_testable_code(&input_str, &mut collector, codes, options.enable_per_target_ignores, None); + // For markdown files, custom code classes will be disabled until the feature is enabled by default. + find_testable_code( + &input_str, + &mut collector, + codes, + options.enable_per_target_ignores, + None, + false, + ); crate::doctest::run_tests(options.test_args, options.nocapture, collector.tests); Ok(()) diff --git a/src/librustdoc/passes/calculate_doc_coverage.rs b/src/librustdoc/passes/calculate_doc_coverage.rs index 592dd0a145c..60def40588a 100644 --- a/src/librustdoc/passes/calculate_doc_coverage.rs +++ b/src/librustdoc/passes/calculate_doc_coverage.rs @@ -208,7 +208,14 @@ impl<'a, 'b> DocVisitor for CoverageCalculator<'a, 'b> { let has_docs = !i.attrs.doc_strings.is_empty(); let mut tests = Tests { found_tests: 0 }; - find_testable_code(&i.doc_value(), &mut tests, ErrorCodes::No, false, None); + find_testable_code( + &i.doc_value(), + &mut tests, + ErrorCodes::No, + false, + None, + self.ctx.tcx.features().custom_code_classes_in_docs, + ); let has_doc_example = tests.found_tests != 0; let hir_id = DocContext::as_local_hir_id(self.ctx.tcx, i.item_id).unwrap(); diff --git a/src/librustdoc/passes/check_custom_code_classes.rs b/src/librustdoc/passes/check_custom_code_classes.rs index 73e80372e4a..1a703a4e967 100644 --- a/src/librustdoc/passes/check_custom_code_classes.rs +++ b/src/librustdoc/passes/check_custom_code_classes.rs @@ -9,7 +9,9 @@ use crate::core::DocContext; use crate::fold::DocFolder; use crate::html::markdown::{find_codes, ErrorCodes, LangString}; -use rustc_session::parse::feature_err; +use rustc_errors::StashKey; +use rustc_feature::GateIssue; +use rustc_session::parse::add_feature_diagnostics_for_issue; use rustc_span::symbol::sym; pub(crate) const CHECK_CUSTOM_CODE_CLASSES: Pass = Pass { @@ -55,23 +57,32 @@ pub(crate) fn look_for_custom_classes<'tcx>(cx: &DocContext<'tcx>, item: &Item) let mut tests = TestsWithCustomClasses { custom_classes_found: vec![] }; let dox = item.attrs.doc_value(); - find_codes(&dox, &mut tests, ErrorCodes::No, false, None, true); + find_codes(&dox, &mut tests, ErrorCodes::No, false, None, true, true); if !tests.custom_classes_found.is_empty() && !cx.tcx.features().custom_code_classes_in_docs { - feature_err( - &cx.tcx.sess.parse_sess, + let span = item.attr_span(cx.tcx); + let sess = &cx.tcx.sess.parse_sess; + let mut err = sess + .span_diagnostic + .struct_span_warn(span, "custom classes in code blocks will change behaviour"); + add_feature_diagnostics_for_issue( + &mut err, + sess, sym::custom_code_classes_in_docs, - item.attr_span(cx.tcx), - "custom classes in code blocks are unstable", - ) - .note( + GateIssue::Language, + false, + ); + + err.note( // This will list the wrong items to make them more easily searchable. // To ensure the most correct hits, it adds back the 'class:' that was stripped. format!( "found these custom classes: class={}", tests.custom_classes_found.join(",class=") ), - ) - .emit(); + ); + + // A later feature_err call can steal and cancel this warning. + err.stash(span, StashKey::EarlySyntaxWarning); } } diff --git a/src/librustdoc/passes/check_doc_test_visibility.rs b/src/librustdoc/passes/check_doc_test_visibility.rs index 96224d7c6e2..d1c4cc1f595 100644 --- a/src/librustdoc/passes/check_doc_test_visibility.rs +++ b/src/librustdoc/passes/check_doc_test_visibility.rs @@ -113,7 +113,14 @@ pub(crate) fn look_for_tests<'tcx>(cx: &DocContext<'tcx>, dox: &str, item: &Item let mut tests = Tests { found_tests: 0 }; - find_testable_code(dox, &mut tests, ErrorCodes::No, false, None); + find_testable_code( + dox, + &mut tests, + ErrorCodes::No, + false, + None, + cx.tcx.features().custom_code_classes_in_docs, + ); if tests.found_tests == 0 && cx.tcx.features().rustdoc_missing_doc_code_examples { if should_have_doc_example(cx, item) { diff --git a/src/librustdoc/passes/lint/check_code_block_syntax.rs b/src/librustdoc/passes/lint/check_code_block_syntax.rs index 316b1a41c7d..ac8a75a4f18 100644 --- a/src/librustdoc/passes/lint/check_code_block_syntax.rs +++ b/src/librustdoc/passes/lint/check_code_block_syntax.rs @@ -20,7 +20,9 @@ pub(crate) fn visit_item(cx: &DocContext<'_>, item: &clean::Item) { if let Some(dox) = &item.opt_doc_value() { let sp = item.attr_span(cx.tcx); let extra = crate::html::markdown::ExtraInfo::new(cx.tcx, item.item_id.expect_def_id(), sp); - for code_block in markdown::rust_code_blocks(dox, &extra) { + for code_block in + markdown::rust_code_blocks(dox, &extra, cx.tcx.features().custom_code_classes_in_docs) + { check_rust_syntax(cx, item, dox, code_block); } } diff --git a/src/tools/cargo b/src/tools/cargo -Subproject d5336f813df39d476e61fc46daabb1446350660 +Subproject b4ddf95ad9954118ac0dae835f2966394ad04c0 diff --git a/src/tools/clippy/tests/ui/arithmetic_side_effects.rs b/src/tools/clippy/tests/ui/arithmetic_side_effects.rs index def30f5903d..b454c29aef4 100644 --- a/src/tools/clippy/tests/ui/arithmetic_side_effects.rs +++ b/src/tools/clippy/tests/ui/arithmetic_side_effects.rs @@ -10,7 +10,7 @@ arithmetic_overflow, unconditional_panic )] -#![feature(const_mut_refs, inline_const, saturating_int_impl)] +#![feature(const_mut_refs, inline_const)] #![warn(clippy::arithmetic_side_effects)] extern crate proc_macro_derive; diff --git a/tests/mir-opt/issue_99325.main.built.after.32bit.mir b/tests/mir-opt/issue_99325.main.built.after.32bit.mir index b6a673b6355..132b713356e 100644 --- a/tests/mir-opt/issue_99325.main.built.after.32bit.mir +++ b/tests/mir-opt/issue_99325.main.built.after.32bit.mir @@ -1,8 +1,8 @@ // MIR for `main` after built | User Type Annotations -| 0: user_ty: Canonical { value: TypeOf(DefId(0:3 ~ issue_99325[22bb]::function_with_bytes), UserArgs { args: [Const { ty: &ReStatic [u8; Const { ty: usize, kind: Leaf(0x00000004) }], kind: Branch([Leaf(0x41), Leaf(0x41), Leaf(0x41), Leaf(0x41)]) }], user_self_ty: None }), max_universe: U0, variables: [] }, span: $DIR/issue_99325.rs:12:16: 12:46, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">} -| 1: user_ty: Canonical { value: TypeOf(DefId(0:3 ~ issue_99325[22bb]::function_with_bytes), UserArgs { args: [Const { ty: &ReStatic [u8; Const { ty: usize, kind: Leaf(0x00000004) }], kind: UnevaluatedConst { def: DefId(0:8 ~ issue_99325[22bb]::main::{constant#1}), args: [] } }], user_self_ty: None }), max_universe: U0, variables: [] }, span: $DIR/issue_99325.rs:13:16: 13:68, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">} +| 0: user_ty: Canonical { value: TypeOf(DefId(0:3 ~ issue_99325[22bb]::function_with_bytes), UserArgs { args: [&*b"AAAA"], user_self_ty: None }), max_universe: U0, variables: [] }, span: $DIR/issue_99325.rs:12:16: 12:46, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">} +| 1: user_ty: Canonical { value: TypeOf(DefId(0:3 ~ issue_99325[22bb]::function_with_bytes), UserArgs { args: [UnevaluatedConst { def: DefId(0:8 ~ issue_99325[22bb]::main::{constant#1}), args: [] }: &ReStatic [u8; 4_usize]], user_self_ty: None }), max_universe: U0, variables: [] }, span: $DIR/issue_99325.rs:13:16: 13:68, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">} | fn main() -> () { let mut _0: (); diff --git a/tests/mir-opt/issue_99325.main.built.after.64bit.mir b/tests/mir-opt/issue_99325.main.built.after.64bit.mir index 9d112cfa20a..132b713356e 100644 --- a/tests/mir-opt/issue_99325.main.built.after.64bit.mir +++ b/tests/mir-opt/issue_99325.main.built.after.64bit.mir @@ -1,8 +1,8 @@ // MIR for `main` after built | User Type Annotations -| 0: user_ty: Canonical { value: TypeOf(DefId(0:3 ~ issue_99325[22bb]::function_with_bytes), UserArgs { args: [Const { ty: &ReStatic [u8; Const { ty: usize, kind: Leaf(0x0000000000000004) }], kind: Branch([Leaf(0x41), Leaf(0x41), Leaf(0x41), Leaf(0x41)]) }], user_self_ty: None }), max_universe: U0, variables: [] }, span: $DIR/issue_99325.rs:12:16: 12:46, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">} -| 1: user_ty: Canonical { value: TypeOf(DefId(0:3 ~ issue_99325[22bb]::function_with_bytes), UserArgs { args: [Const { ty: &ReStatic [u8; Const { ty: usize, kind: Leaf(0x0000000000000004) }], kind: UnevaluatedConst { def: DefId(0:8 ~ issue_99325[22bb]::main::{constant#1}), args: [] } }], user_self_ty: None }), max_universe: U0, variables: [] }, span: $DIR/issue_99325.rs:13:16: 13:68, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">} +| 0: user_ty: Canonical { value: TypeOf(DefId(0:3 ~ issue_99325[22bb]::function_with_bytes), UserArgs { args: [&*b"AAAA"], user_self_ty: None }), max_universe: U0, variables: [] }, span: $DIR/issue_99325.rs:12:16: 12:46, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">} +| 1: user_ty: Canonical { value: TypeOf(DefId(0:3 ~ issue_99325[22bb]::function_with_bytes), UserArgs { args: [UnevaluatedConst { def: DefId(0:8 ~ issue_99325[22bb]::main::{constant#1}), args: [] }: &ReStatic [u8; 4_usize]], user_self_ty: None }), max_universe: U0, variables: [] }, span: $DIR/issue_99325.rs:13:16: 13:68, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">} | fn main() -> () { let mut _0: (); diff --git a/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir b/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir index 56b0f816573..c581d0f8471 100644 --- a/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir +++ b/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir @@ -22,7 +22,7 @@ | fn main() -> () { let mut _0: (); - let mut _1: [usize; Const { ty: usize, kind: Leaf(0x00000003) }]; + let mut _1: [usize; ValTree(Leaf(0x00000003): usize)]; let _3: usize; let mut _4: usize; let mut _5: bool; diff --git a/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir b/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir index 83b851eed74..48243e34d08 100644 --- a/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir +++ b/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir @@ -22,7 +22,7 @@ | fn main() -> () { let mut _0: (); - let mut _1: [usize; Const { ty: usize, kind: Leaf(0x0000000000000003) }]; + let mut _1: [usize; ValTree(Leaf(0x0000000000000003): usize)]; let _3: usize; let mut _4: usize; let mut _5: bool; diff --git a/tests/run-make/metadata-dep-info/Makefile b/tests/run-make/metadata-dep-info/Makefile new file mode 100644 index 00000000000..f9043f21433 --- /dev/null +++ b/tests/run-make/metadata-dep-info/Makefile @@ -0,0 +1,13 @@ +include ../tools.mk + +ifdef RUSTC_BLESS_TEST + RUSTC_TEST_OP = cp +else + RUSTC_TEST_OP = $(DIFF) +endif + +all: + $(RUSTC) --emit=metadata,dep-info --crate-type lib dash-separated.rs -C extra-filename=_something-extra + # Strip TMPDIR since it is a machine specific absolute path + sed "s%.*[/\\]%%" "$(TMPDIR)"/dash-separated_something-extra.d > "$(TMPDIR)"/dash-separated_something-extra.normalized.d + $(RUSTC_TEST_OP) "$(TMPDIR)"/dash-separated_something-extra.normalized.d dash-separated_something-extra.normalized.d diff --git a/tests/run-make/metadata-dep-info/dash-separated.rs b/tests/run-make/metadata-dep-info/dash-separated.rs new file mode 100644 index 00000000000..4202afd3d08 --- /dev/null +++ b/tests/run-make/metadata-dep-info/dash-separated.rs @@ -0,0 +1,4 @@ +//! It is important that this file has at least one `-` in the file name since +//! we want to test that it becomes a `_` when appropriate. + +pub struct Foo; diff --git a/tests/run-make/metadata-dep-info/dash-separated_something-extra.normalized.d b/tests/run-make/metadata-dep-info/dash-separated_something-extra.normalized.d new file mode 100644 index 00000000000..497d76b4ea1 --- /dev/null +++ b/tests/run-make/metadata-dep-info/dash-separated_something-extra.normalized.d @@ -0,0 +1,5 @@ +libdash_separated_something-extra.rmeta: dash-separated.rs + +dash-separated_something-extra.d: dash-separated.rs + +dash-separated.rs: diff --git a/tests/rustdoc-gui/search-result-color.goml b/tests/rustdoc-gui/search-result-color.goml index f9f81c5ba04..44677dfbfef 100644 --- a/tests/rustdoc-gui/search-result-color.goml +++ b/tests/rustdoc-gui/search-result-color.goml @@ -151,7 +151,7 @@ assert-css: ( ) assert-css: ( "//*[@class='result-name']//*[text()='test_docs::']/ancestor::a", - {"color": "#fff", "background-color": "rgb(60, 60, 60)"}, + {"color": "#fff", "background-color": "#3c3c3c"}, ) // Dark theme diff --git a/tests/rustdoc-ui/feature-gate-custom_code_classes_in_docs.rs b/tests/rustdoc-ui/feature-gate-custom_code_classes_in_docs.rs index 8aa13b2d5d1..3f0f8b5b9f9 100644 --- a/tests/rustdoc-ui/feature-gate-custom_code_classes_in_docs.rs +++ b/tests/rustdoc-ui/feature-gate-custom_code_classes_in_docs.rs @@ -1,5 +1,10 @@ +// check-pass + /// ```{class=language-c} /// int main(void) { return 0; } /// ``` -//~^^^ ERROR 1:1: 3:8: custom classes in code blocks are unstable [E0658] +//~^^^ WARNING custom classes in code blocks will change behaviour +//~| NOTE found these custom classes: class=language-c +//~| NOTE see issue #79483 <https://github.com/rust-lang/rust/issues/79483> +//~| HELP add `#![feature(custom_code_classes_in_docs)]` to the crate attributes to enable pub struct Bar; diff --git a/tests/rustdoc-ui/feature-gate-custom_code_classes_in_docs.stderr b/tests/rustdoc-ui/feature-gate-custom_code_classes_in_docs.stderr index c41ebfc8073..1a2360d9b30 100644 --- a/tests/rustdoc-ui/feature-gate-custom_code_classes_in_docs.stderr +++ b/tests/rustdoc-ui/feature-gate-custom_code_classes_in_docs.stderr @@ -1,5 +1,5 @@ -error[E0658]: custom classes in code blocks are unstable - --> $DIR/feature-gate-custom_code_classes_in_docs.rs:1:1 +warning: custom classes in code blocks will change behaviour + --> $DIR/feature-gate-custom_code_classes_in_docs.rs:3:1 | LL | / /// ```{class=language-c} LL | | /// int main(void) { return 0; } @@ -10,6 +10,5 @@ LL | | /// ``` = help: add `#![feature(custom_code_classes_in_docs)]` to the crate attributes to enable = note: found these custom classes: class=language-c -error: aborting due to previous error +warning: 1 warning emitted -For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/abi/debug.stderr b/tests/ui/abi/debug.stderr index ceaf5136a6f..00fc7d1ece1 100644 --- a/tests/ui/abi/debug.stderr +++ b/tests/ui/abi/debug.stderr @@ -450,7 +450,7 @@ error: ABIs are not compatible Align(1 bytes), ), }, - extra_attrs: None, + meta_attrs: None, on_stack: false, }, }, @@ -521,7 +521,7 @@ error: ABIs are not compatible Align(4 bytes), ), }, - extra_attrs: None, + meta_attrs: None, on_stack: false, }, }, diff --git a/tests/ui/diagnostic_namespace/feature-gate-diagnostic_namespace.rs b/tests/ui/diagnostic_namespace/feature-gate-diagnostic_namespace.rs index a686ed9c84e..b08e291621f 100644 --- a/tests/ui/diagnostic_namespace/feature-gate-diagnostic_namespace.rs +++ b/tests/ui/diagnostic_namespace/feature-gate-diagnostic_namespace.rs @@ -1,12 +1,12 @@ #[diagnostic::non_existing_attribute] //~^ERROR `#[diagnostic]` attribute name space is experimental [E0658] -//~|WARNING unknown diagnostic attribute [unknown_diagnostic_attributes] +//~|WARNING unknown diagnostic attribute [unknown_or_malformed_diagnostic_attributes] pub trait Bar { } #[diagnostic::non_existing_attribute(with_option = "foo")] //~^ERROR `#[diagnostic]` attribute name space is experimental [E0658] -//~|WARNING unknown diagnostic attribute [unknown_diagnostic_attributes] +//~|WARNING unknown diagnostic attribute [unknown_or_malformed_diagnostic_attributes] struct Foo; fn main() { diff --git a/tests/ui/diagnostic_namespace/feature-gate-diagnostic_namespace.stderr b/tests/ui/diagnostic_namespace/feature-gate-diagnostic_namespace.stderr index 45c95cbb3c7..017d00e2c8e 100644 --- a/tests/ui/diagnostic_namespace/feature-gate-diagnostic_namespace.stderr +++ b/tests/ui/diagnostic_namespace/feature-gate-diagnostic_namespace.stderr @@ -4,7 +4,7 @@ error[E0658]: `#[diagnostic]` attribute name space is experimental LL | #[diagnostic::non_existing_attribute] | ^^^^^^^^^^ | - = note: see issue #94785 <https://github.com/rust-lang/rust/issues/94785> for more information + = note: see issue #111996 <https://github.com/rust-lang/rust/issues/111996> for more information = help: add `#![feature(diagnostic_namespace)]` to the crate attributes to enable error[E0658]: `#[diagnostic]` attribute name space is experimental @@ -13,7 +13,7 @@ error[E0658]: `#[diagnostic]` attribute name space is experimental LL | #[diagnostic::non_existing_attribute(with_option = "foo")] | ^^^^^^^^^^ | - = note: see issue #94785 <https://github.com/rust-lang/rust/issues/94785> for more information + = note: see issue #111996 <https://github.com/rust-lang/rust/issues/111996> for more information = help: add `#![feature(diagnostic_namespace)]` to the crate attributes to enable warning: unknown diagnostic attribute @@ -22,7 +22,7 @@ warning: unknown diagnostic attribute LL | #[diagnostic::non_existing_attribute] | ^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(unknown_diagnostic_attributes)]` on by default + = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default warning: unknown diagnostic attribute --> $DIR/feature-gate-diagnostic_namespace.rs:7:15 diff --git a/tests/ui/diagnostic_namespace/non_existing_attributes_accepted.stderr b/tests/ui/diagnostic_namespace/non_existing_attributes_accepted.stderr index 4f9b7ba2bcf..753077b365e 100644 --- a/tests/ui/diagnostic_namespace/non_existing_attributes_accepted.stderr +++ b/tests/ui/diagnostic_namespace/non_existing_attributes_accepted.stderr @@ -4,7 +4,7 @@ warning: unknown diagnostic attribute LL | #[diagnostic::non_existing_attribute] | ^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(unknown_diagnostic_attributes)]` on by default + = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default warning: unknown diagnostic attribute --> $DIR/non_existing_attributes_accepted.rs:8:15 diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.rs b/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.rs new file mode 100644 index 00000000000..00fb59d14d7 --- /dev/null +++ b/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.rs @@ -0,0 +1,37 @@ +#![feature(diagnostic_namespace)] + +#[diagnostic::on_unimplemented(unsupported = "foo")] +//~^WARN malformed `on_unimplemented` attribute +//~|WARN malformed `on_unimplemented` attribute +trait Foo {} + +#[diagnostic::on_unimplemented(message = "Baz")] +//~^WARN `#[diagnostic::on_unimplemented]` can only be applied to trait definitions +struct Bar {} + +#[diagnostic::on_unimplemented(message = "Boom", unsupported = "Bar")] +//~^WARN malformed `on_unimplemented` attribute +//~|WARN malformed `on_unimplemented` attribute +trait Baz {} + +#[diagnostic::on_unimplemented(message = "Boom", on(_Self = "i32", message = "whatever"))] +//~^WARN malformed `on_unimplemented` attribute +//~|WARN malformed `on_unimplemented` attribute +trait Boom {} + +#[diagnostic::on_unimplemented = "boom"] +//~^WARN malformed `on_unimplemented` attribute +trait Doom {} + +fn take_foo(_: impl Foo) {} +fn take_baz(_: impl Baz) {} +fn take_boom(_: impl Boom) {} + +fn main() { + take_foo(1_i32); + //~^ERROR the trait bound `i32: Foo` is not satisfied + take_baz(1_i32); + //~^ERROR Boom + take_boom(1_i32); + //~^ERROR Boom +} diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.stderr b/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.stderr new file mode 100644 index 00000000000..bb1b29ef248 --- /dev/null +++ b/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.stderr @@ -0,0 +1,110 @@ +warning: `#[diagnostic::on_unimplemented]` can only be applied to trait definitions + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:8:1 + | +LL | #[diagnostic::on_unimplemented(message = "Baz")] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default + +warning: malformed `on_unimplemented` attribute + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:3:32 + | +LL | #[diagnostic::on_unimplemented(unsupported = "foo")] + | ^^^^^^^^^^^^^^^^^^^ + +warning: malformed `on_unimplemented` attribute + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:12:50 + | +LL | #[diagnostic::on_unimplemented(message = "Boom", unsupported = "Bar")] + | ^^^^^^^^^^^^^^^^^^^ + +warning: malformed `on_unimplemented` attribute + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:17:50 + | +LL | #[diagnostic::on_unimplemented(message = "Boom", on(_Self = "i32", message = "whatever"))] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: malformed `on_unimplemented` attribute + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:22:1 + | +LL | #[diagnostic::on_unimplemented = "boom"] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: malformed `on_unimplemented` attribute + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:3:32 + | +LL | #[diagnostic::on_unimplemented(unsupported = "foo")] + | ^^^^^^^^^^^^^^^^^^^ + +error[E0277]: the trait bound `i32: Foo` is not satisfied + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:31:14 + | +LL | take_foo(1_i32); + | -------- ^^^^^ the trait `Foo` is not implemented for `i32` + | | + | required by a bound introduced by this call + | +help: this trait has no implementations, consider adding one + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:6:1 + | +LL | trait Foo {} + | ^^^^^^^^^ +note: required by a bound in `take_foo` + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:26:21 + | +LL | fn take_foo(_: impl Foo) {} + | ^^^ required by this bound in `take_foo` + +warning: malformed `on_unimplemented` attribute + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:12:50 + | +LL | #[diagnostic::on_unimplemented(message = "Boom", unsupported = "Bar")] + | ^^^^^^^^^^^^^^^^^^^ + +error[E0277]: Boom + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:33:14 + | +LL | take_baz(1_i32); + | -------- ^^^^^ the trait `Baz` is not implemented for `i32` + | | + | required by a bound introduced by this call + | +help: this trait has no implementations, consider adding one + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:15:1 + | +LL | trait Baz {} + | ^^^^^^^^^ +note: required by a bound in `take_baz` + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:27:21 + | +LL | fn take_baz(_: impl Baz) {} + | ^^^ required by this bound in `take_baz` + +warning: malformed `on_unimplemented` attribute + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:17:50 + | +LL | #[diagnostic::on_unimplemented(message = "Boom", on(_Self = "i32", message = "whatever"))] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error[E0277]: Boom + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:35:15 + | +LL | take_boom(1_i32); + | --------- ^^^^^ the trait `Boom` is not implemented for `i32` + | | + | required by a bound introduced by this call + | +help: this trait has no implementations, consider adding one + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:20:1 + | +LL | trait Boom {} + | ^^^^^^^^^^ +note: required by a bound in `take_boom` + --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:28:22 + | +LL | fn take_boom(_: impl Boom) {} + | ^^^^ required by this bound in `take_boom` + +error: aborting due to 3 previous errors; 8 warnings emitted + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/feature-gate-diagnostic_on_unimplemented.rs b/tests/ui/diagnostic_namespace/on_unimplemented/feature-gate-diagnostic_on_unimplemented.rs new file mode 100644 index 00000000000..609a840c118 --- /dev/null +++ b/tests/ui/diagnostic_namespace/on_unimplemented/feature-gate-diagnostic_on_unimplemented.rs @@ -0,0 +1,7 @@ +#[diagnostic::on_unimplemented(message = "Foo")] +//~^ERROR `#[diagnostic]` attribute name space is experimental [E0658] +pub trait Bar { +} + +fn main() { +} diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/feature-gate-diagnostic_on_unimplemented.stderr b/tests/ui/diagnostic_namespace/on_unimplemented/feature-gate-diagnostic_on_unimplemented.stderr new file mode 100644 index 00000000000..21f02e3a73b --- /dev/null +++ b/tests/ui/diagnostic_namespace/on_unimplemented/feature-gate-diagnostic_on_unimplemented.stderr @@ -0,0 +1,12 @@ +error[E0658]: `#[diagnostic]` attribute name space is experimental + --> $DIR/feature-gate-diagnostic_on_unimplemented.rs:1:3 + | +LL | #[diagnostic::on_unimplemented(message = "Foo")] + | ^^^^^^^^^^ + | + = note: see issue #111996 <https://github.com/rust-lang/rust/issues/111996> for more information + = help: add `#![feature(diagnostic_namespace)]` to the crate attributes to enable + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/on_unimplemented_simple.rs b/tests/ui/diagnostic_namespace/on_unimplemented/on_unimplemented_simple.rs new file mode 100644 index 00000000000..797edbc9ec5 --- /dev/null +++ b/tests/ui/diagnostic_namespace/on_unimplemented/on_unimplemented_simple.rs @@ -0,0 +1,11 @@ +#![feature(diagnostic_namespace)] + +#[diagnostic::on_unimplemented(message = "Foo", label = "Bar", note = "Baz")] +trait Foo {} + +fn takes_foo(_: impl Foo) {} + +fn main() { + takes_foo(()); + //~^ERROR Foo +} diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/on_unimplemented_simple.stderr b/tests/ui/diagnostic_namespace/on_unimplemented/on_unimplemented_simple.stderr new file mode 100644 index 00000000000..549c7caa720 --- /dev/null +++ b/tests/ui/diagnostic_namespace/on_unimplemented/on_unimplemented_simple.stderr @@ -0,0 +1,24 @@ +error[E0277]: Foo + --> $DIR/on_unimplemented_simple.rs:9:15 + | +LL | takes_foo(()); + | --------- ^^ Bar + | | + | required by a bound introduced by this call + | + = help: the trait `Foo` is not implemented for `()` + = note: Baz +help: this trait has no implementations, consider adding one + --> $DIR/on_unimplemented_simple.rs:4:1 + | +LL | trait Foo {} + | ^^^^^^^^^ +note: required by a bound in `takes_foo` + --> $DIR/on_unimplemented_simple.rs:6:22 + | +LL | fn takes_foo(_: impl Foo) {} + | ^^^ required by this bound in `takes_foo` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/error-codes/E0040.stderr b/tests/ui/error-codes/E0040.stderr index 9fcda1a9385..839be79d28d 100644 --- a/tests/ui/error-codes/E0040.stderr +++ b/tests/ui/error-codes/E0040.stderr @@ -2,10 +2,12 @@ error[E0040]: explicit use of destructor method --> $DIR/E0040.rs:16:7 | LL | x.drop(); - | --^^^^-- - | | | - | | explicit destructor calls not allowed - | help: consider using `drop` function: `drop(x)` + | ^^^^ explicit destructor calls not allowed + | +help: consider using `drop` function + | +LL | drop(x); + | +++++ ~ error: aborting due to previous error diff --git a/tests/ui/explicit/explicit-call-to-dtor.stderr b/tests/ui/explicit/explicit-call-to-dtor.stderr index f3c9bf6cccd..f2e0b73b6c5 100644 --- a/tests/ui/explicit/explicit-call-to-dtor.stderr +++ b/tests/ui/explicit/explicit-call-to-dtor.stderr @@ -2,10 +2,12 @@ error[E0040]: explicit use of destructor method --> $DIR/explicit-call-to-dtor.rs:15:7 | LL | x.drop(); - | --^^^^-- - | | | - | | explicit destructor calls not allowed - | help: consider using `drop` function: `drop(x)` + | ^^^^ explicit destructor calls not allowed + | +help: consider using `drop` function + | +LL | drop(x); + | +++++ ~ error: aborting due to previous error diff --git a/tests/ui/explicit/explicit-call-to-supertrait-dtor.stderr b/tests/ui/explicit/explicit-call-to-supertrait-dtor.stderr index c7067117349..5fa42fcf191 100644 --- a/tests/ui/explicit/explicit-call-to-supertrait-dtor.stderr +++ b/tests/ui/explicit/explicit-call-to-supertrait-dtor.stderr @@ -2,10 +2,12 @@ error[E0040]: explicit use of destructor method --> $DIR/explicit-call-to-supertrait-dtor.rs:22:14 | LL | self.drop(); - | -----^^^^-- - | | | - | | explicit destructor calls not allowed - | help: consider using `drop` function: `drop(self)` + | ^^^^ explicit destructor calls not allowed + | +help: consider using `drop` function + | +LL | drop(self); + | +++++ ~ error: aborting due to previous error diff --git a/tests/ui/fmt/raw-idents.rs b/tests/ui/fmt/raw-idents.rs new file mode 100644 index 00000000000..29a74c55a4a --- /dev/null +++ b/tests/ui/fmt/raw-idents.rs @@ -0,0 +1,17 @@ +// Regression test for https://github.com/rust-lang/rust/issues/115466 + +// The "identifier" in format strings is parsed as an IDENTIFIER_OR_KEYWORD, not an IDENTIFIER. +// Test that there is an actionable diagnostic if a RAW_IDENTIFIER is used instead. + +fn main() { + let r#type = "foobar"; + println!("It is {r#type}"); //~ ERROR: invalid format string: raw identifiers are not supported + println!(r##"It still is {r#type}"##); //~ ERROR: invalid format string: raw identifiers are not supported + println!(concat!("{r#", "type}")); //~ ERROR: invalid format string: raw identifiers are not supported + println!("{\x72\x23type:?}"); //~ ERROR: invalid format string: raw identifiers are not supported + + // OK + println!("{type}"); + println!("{let}", let = r#type); + println!("{let}", r#let = r#type); +} diff --git a/tests/ui/fmt/raw-idents.stderr b/tests/ui/fmt/raw-idents.stderr new file mode 100644 index 00000000000..2ddc114d286 --- /dev/null +++ b/tests/ui/fmt/raw-idents.stderr @@ -0,0 +1,44 @@ +error: invalid format string: raw identifiers are not supported + --> $DIR/raw-idents.rs:8:22 + | +LL | println!("It is {r#type}"); + | --^^^^ + | | + | raw identifier used here in format string + | help: remove the `r#` + | + = note: identifiers in format strings can be keywords and don't need to be prefixed with `r#` + +error: invalid format string: raw identifiers are not supported + --> $DIR/raw-idents.rs:9:31 + | +LL | println!(r##"It still is {r#type}"##); + | --^^^^ + | | + | raw identifier used here in format string + | help: remove the `r#` + | + = note: identifiers in format strings can be keywords and don't need to be prefixed with `r#` + +error: invalid format string: raw identifiers are not supported + --> $DIR/raw-idents.rs:10:14 + | +LL | println!(concat!("{r#", "type}")); + | ^^^^^^^^^^^^^^^^^^^^^^^ raw identifier used here in format string + | + = note: identifiers in format strings can be keywords and don't need to be prefixed with `r#` + = note: this error originates in the macro `concat` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: invalid format string: raw identifiers are not supported + --> $DIR/raw-idents.rs:11:16 + | +LL | println!("{\x72\x23type:?}"); + | --------^^^^ + | | + | raw identifier used here in format string + | help: remove the `r#` + | + = note: identifiers in format strings can be keywords and don't need to be prefixed with `r#` + +error: aborting due to 4 previous errors + diff --git a/tests/ui/range/range-1.stderr b/tests/ui/range/range-1.stderr index ecfc56961ee..96c1ffb2f7e 100644 --- a/tests/ui/range/range-1.stderr +++ b/tests/ui/range/range-1.stderr @@ -19,7 +19,7 @@ LL | for i in false..true {} i64 i128 usize - and 6 others + and 8 others = note: required for `std::ops::Range<bool>` to implement `Iterator` = note: required for `std::ops::Range<bool>` to implement `IntoIterator` diff --git a/tests/ui/repr/repr-transparent.rs b/tests/ui/repr/repr-transparent.rs index 8c9d1639c0a..87cf59ce9af 100644 --- a/tests/ui/repr/repr-transparent.rs +++ b/tests/ui/repr/repr-transparent.rs @@ -23,23 +23,26 @@ struct ContainsMultipleZst(PhantomData<*const i32>, NoFields); struct ContainsZstAndNonZst((), [i32; 2]); #[repr(transparent)] -struct MultipleNonZst(u8, u8); //~ ERROR needs at most one non-zero-sized field +struct MultipleNonZst(u8, u8); //~ ERROR needs at most one field with non-trivial size or alignment trait Mirror { type It: ?Sized; } impl<T: ?Sized> Mirror for T { type It = Self; } #[repr(transparent)] pub struct StructWithProjection(f32, <f32 as Mirror>::It); -//~^ ERROR needs at most one non-zero-sized field +//~^ ERROR needs at most one field with non-trivial size or alignment #[repr(transparent)] -struct NontrivialAlignZst(u32, [u16; 0]); //~ ERROR alignment larger than 1 +struct NontrivialAlignZst(u32, [u16; 0]); //~ ERROR needs at most one field with non-trivial size or alignment #[repr(align(32))] struct ZstAlign32<T>(PhantomData<T>); #[repr(transparent)] -struct GenericAlign<T>(ZstAlign32<T>, u32); //~ ERROR alignment larger than 1 +struct GenericAlign<T>(ZstAlign32<T>, u32); //~ ERROR needs at most one field with non-trivial size or alignment + +#[repr(transparent)] +struct WrapsZstWithAlignment([i32; 0]); #[repr(transparent)] //~ ERROR unsupported representation for zero-variant enum enum Void {} //~ ERROR transparent enum needs exactly one variant, but has 0 @@ -58,7 +61,7 @@ enum UnitFieldEnum { enum TooManyFieldsEnum { Foo(u32, String), } -//~^^^ ERROR transparent enum needs at most one non-zero-sized field, but has 2 +//~^^^ ERROR transparent enum needs at most one field with non-trivial size or alignment, but has 2 #[repr(transparent)] enum MultipleVariants { //~ ERROR transparent enum needs exactly one variant, but has 2 @@ -67,13 +70,13 @@ enum MultipleVariants { //~ ERROR transparent enum needs exactly one variant, bu } #[repr(transparent)] -enum NontrivialAlignZstEnum { - Foo(u32, [u16; 0]), //~ ERROR alignment larger than 1 +enum NontrivialAlignZstEnum { //~ ERROR needs at most one field with non-trivial size or alignment + Foo(u32, [u16; 0]), } #[repr(transparent)] -enum GenericAlignEnum<T> { - Foo { bar: ZstAlign32<T>, baz: u32 } //~ ERROR alignment larger than 1 +enum GenericAlignEnum<T> { //~ ERROR needs at most one field with non-trivial size or alignment + Foo { bar: ZstAlign32<T>, baz: u32 } } #[repr(transparent)] @@ -82,7 +85,7 @@ union UnitUnion { } #[repr(transparent)] -union TooManyFields { //~ ERROR transparent union needs at most one non-zero-sized field, but has 2 +union TooManyFields { //~ ERROR transparent union needs at most one field with non-trivial size or alignment, but has 2 u: u32, s: i32 } diff --git a/tests/ui/repr/repr-transparent.stderr b/tests/ui/repr/repr-transparent.stderr index 028fc25db46..d0c78a8418a 100644 --- a/tests/ui/repr/repr-transparent.stderr +++ b/tests/ui/repr/repr-transparent.stderr @@ -1,35 +1,41 @@ -error[E0690]: transparent struct needs at most one non-zero-sized field, but has 2 +error[E0690]: transparent struct needs at most one field with non-trivial size or alignment, but has 2 --> $DIR/repr-transparent.rs:26:1 | LL | struct MultipleNonZst(u8, u8); - | ^^^^^^^^^^^^^^^^^^^^^ -- -- this field is non-zero-sized + | ^^^^^^^^^^^^^^^^^^^^^ -- -- this field has non-zero size or requires alignment | | | - | | this field is non-zero-sized - | needs at most one non-zero-sized field, but has 2 + | | this field has non-zero size or requires alignment + | needs at most one field with non-trivial size or alignment, but has 2 -error[E0690]: transparent struct needs at most one non-zero-sized field, but has 2 +error[E0690]: transparent struct needs at most one field with non-trivial size or alignment, but has 2 --> $DIR/repr-transparent.rs:32:1 | LL | pub struct StructWithProjection(f32, <f32 as Mirror>::It); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ --- ------------------- this field is non-zero-sized + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ --- ------------------- this field has non-zero size or requires alignment | | | - | | this field is non-zero-sized - | needs at most one non-zero-sized field, but has 2 + | | this field has non-zero size or requires alignment + | needs at most one field with non-trivial size or alignment, but has 2 -error[E0691]: zero-sized field in transparent struct has alignment larger than 1 - --> $DIR/repr-transparent.rs:36:32 +error[E0690]: transparent struct needs at most one field with non-trivial size or alignment, but has 2 + --> $DIR/repr-transparent.rs:36:1 | LL | struct NontrivialAlignZst(u32, [u16; 0]); - | ^^^^^^^^ has alignment of 2, which is larger than 1 + | ^^^^^^^^^^^^^^^^^^^^^^^^^ --- -------- this field has non-zero size or requires alignment + | | | + | | this field has non-zero size or requires alignment + | needs at most one field with non-trivial size or alignment, but has 2 -error[E0691]: zero-sized field in transparent struct has alignment larger than 1 - --> $DIR/repr-transparent.rs:42:24 +error[E0690]: transparent struct needs at most one field with non-trivial size or alignment, but has 2 + --> $DIR/repr-transparent.rs:42:1 | LL | struct GenericAlign<T>(ZstAlign32<T>, u32); - | ^^^^^^^^^^^^^ has alignment of 32, which is larger than 1 + | ^^^^^^^^^^^^^^^^^^^^^^ ------------- --- this field has non-zero size or requires alignment + | | | + | | this field has non-zero size or requires alignment + | needs at most one field with non-trivial size or alignment, but has 2 error[E0084]: unsupported representation for zero-variant enum - --> $DIR/repr-transparent.rs:44:1 + --> $DIR/repr-transparent.rs:47:1 | LL | #[repr(transparent)] | ^^^^^^^^^^^^^^^^^^^^ @@ -37,23 +43,23 @@ LL | enum Void {} | --------- zero-variant enum error[E0731]: transparent enum needs exactly one variant, but has 0 - --> $DIR/repr-transparent.rs:45:1 + --> $DIR/repr-transparent.rs:48:1 | LL | enum Void {} | ^^^^^^^^^ needs exactly one variant, but has 0 -error[E0690]: the variant of a transparent enum needs at most one non-zero-sized field, but has 2 - --> $DIR/repr-transparent.rs:58:1 +error[E0690]: the variant of a transparent enum needs at most one field with non-trivial size or alignment, but has 2 + --> $DIR/repr-transparent.rs:61:1 | LL | enum TooManyFieldsEnum { - | ^^^^^^^^^^^^^^^^^^^^^^ needs at most one non-zero-sized field, but has 2 + | ^^^^^^^^^^^^^^^^^^^^^^ needs at most one field with non-trivial size or alignment, but has 2 LL | Foo(u32, String), - | --- ------ this field is non-zero-sized + | --- ------ this field has non-zero size or requires alignment | | - | this field is non-zero-sized + | this field has non-zero size or requires alignment error[E0731]: transparent enum needs exactly one variant, but has 2 - --> $DIR/repr-transparent.rs:64:1 + --> $DIR/repr-transparent.rs:67:1 | LL | enum MultipleVariants { | ^^^^^^^^^^^^^^^^^^^^^ needs exactly one variant, but has 2 @@ -62,29 +68,37 @@ LL | Foo(String), LL | Bar, | --- too many variants in `MultipleVariants` -error[E0691]: zero-sized field in transparent enum has alignment larger than 1 - --> $DIR/repr-transparent.rs:71:14 +error[E0690]: the variant of a transparent enum needs at most one field with non-trivial size or alignment, but has 2 + --> $DIR/repr-transparent.rs:73:1 | +LL | enum NontrivialAlignZstEnum { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ needs at most one field with non-trivial size or alignment, but has 2 LL | Foo(u32, [u16; 0]), - | ^^^^^^^^ has alignment of 2, which is larger than 1 + | --- -------- this field has non-zero size or requires alignment + | | + | this field has non-zero size or requires alignment -error[E0691]: zero-sized field in transparent enum has alignment larger than 1 - --> $DIR/repr-transparent.rs:76:11 +error[E0690]: the variant of a transparent enum needs at most one field with non-trivial size or alignment, but has 2 + --> $DIR/repr-transparent.rs:78:1 | +LL | enum GenericAlignEnum<T> { + | ^^^^^^^^^^^^^^^^^^^^^^^^ needs at most one field with non-trivial size or alignment, but has 2 LL | Foo { bar: ZstAlign32<T>, baz: u32 } - | ^^^^^^^^^^^^^^^^^^ has alignment of 32, which is larger than 1 + | ------------------ -------- this field has non-zero size or requires alignment + | | + | this field has non-zero size or requires alignment -error[E0690]: transparent union needs at most one non-zero-sized field, but has 2 - --> $DIR/repr-transparent.rs:85:1 +error[E0690]: transparent union needs at most one field with non-trivial size or alignment, but has 2 + --> $DIR/repr-transparent.rs:88:1 | LL | union TooManyFields { - | ^^^^^^^^^^^^^^^^^^^ needs at most one non-zero-sized field, but has 2 + | ^^^^^^^^^^^^^^^^^^^ needs at most one field with non-trivial size or alignment, but has 2 LL | u: u32, - | ------ this field is non-zero-sized + | ------ this field has non-zero size or requires alignment LL | s: i32 - | ------ this field is non-zero-sized + | ------ this field has non-zero size or requires alignment error: aborting due to 11 previous errors -Some errors have detailed explanations: E0084, E0690, E0691, E0731. +Some errors have detailed explanations: E0084, E0690, E0731. For more information about an error, try `rustc --explain E0084`. diff --git a/tests/ui/span/send-is-not-static-std-sync.rs b/tests/ui/span/send-is-not-static-std-sync.rs index f8ab5243c22..9c1ee287154 100644 --- a/tests/ui/span/send-is-not-static-std-sync.rs +++ b/tests/ui/span/send-is-not-static-std-sync.rs @@ -46,7 +46,7 @@ fn channel() { tx.send(&z).unwrap(); } //~^^ ERROR `z` does not live long enough - // (channels lack #[may_dangle], thus their dtors are implicit uses of `z`) + tx.use_ref(); // (channel drop glue does not use `z` => needs explicit use) } fn main() {} diff --git a/tests/ui/span/send-is-not-static-std-sync.stderr b/tests/ui/span/send-is-not-static-std-sync.stderr index eaba415adaa..46534b39168 100644 --- a/tests/ui/span/send-is-not-static-std-sync.stderr +++ b/tests/ui/span/send-is-not-static-std-sync.stderr @@ -75,11 +75,9 @@ LL | tx.send(&z).unwrap(); | ^^ borrowed value does not live long enough LL | } | - `z` dropped here while still borrowed -... -LL | } - | - borrow might be used here, when `tx` is dropped and runs the `Drop` code for type `Sender` - | - = note: values in a scope are dropped in the opposite order they are defined +LL | +LL | tx.use_ref(); // (channel drop glue does not use `z` => needs explicit use) + | -- borrow later used here error: aborting due to 6 previous errors |