diff options
| -rw-r--r-- | compiler/rustc_ast_pretty/src/pprust/mod.rs | 4 | ||||
| -rw-r--r-- | compiler/rustc_ast_pretty/src/pprust/state.rs | 44 | ||||
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs | 28 | ||||
| -rw-r--r-- | compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs | 101 | ||||
| -rw-r--r-- | compiler/rustc_span/src/def_id.rs | 4 | ||||
| -rw-r--r-- | library/core/src/char/convert.rs | 15 | ||||
| -rw-r--r-- | library/core/src/char/mod.rs | 12 | ||||
| -rw-r--r-- | library/core/src/mem/mod.rs | 4 | ||||
| -rw-r--r-- | library/core/src/num/f32.rs | 5 | ||||
| -rw-r--r-- | library/core/src/num/f64.rs | 5 | ||||
| -rw-r--r-- | library/std/src/error.rs | 3 | ||||
| -rw-r--r-- | library/std/src/thread/mod.rs | 3 | ||||
| -rw-r--r-- | library/test/src/lib.rs | 1 | ||||
| -rw-r--r-- | src/librustdoc/html/static/css/rustdoc.css | 4 | ||||
| -rw-r--r-- | src/librustdoc/html/static/js/main.js | 4 |
15 files changed, 142 insertions, 95 deletions
diff --git a/compiler/rustc_ast_pretty/src/pprust/mod.rs b/compiler/rustc_ast_pretty/src/pprust/mod.rs index 4b5703a429e..ac9e7d06c4e 100644 --- a/compiler/rustc_ast_pretty/src/pprust/mod.rs +++ b/compiler/rustc_ast_pretty/src/pprust/mod.rs @@ -73,11 +73,11 @@ pub fn attribute_to_string(attr: &ast::Attribute) -> String { } pub fn to_string(f: impl FnOnce(&mut State<'_>)) -> String { - State::new().to_string(f) + State::to_string(f) } pub fn crate_to_string_for_macros(krate: &ast::Crate) -> String { - State::new().to_string(|s| { + State::to_string(|s| { s.print_inner_attributes(&krate.attrs); for item in &krate.items { s.print_item(item); diff --git a/compiler/rustc_ast_pretty/src/pprust/state.rs b/compiler/rustc_ast_pretty/src/pprust/state.rs index 3267945f427..fa9a20f2e03 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state.rs @@ -211,7 +211,7 @@ pub fn literal_to_string(lit: token::Lit) -> String { } fn visibility_qualified(vis: &ast::Visibility, s: &str) -> String { - format!("{}{}", State::new().to_string(|s| s.print_visibility(vis)), s) + format!("{}{}", State::to_string(|s| s.print_visibility(vis)), s) } impl std::ops::Deref for State<'_> { @@ -793,55 +793,55 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere } fn ty_to_string(&self, ty: &ast::Ty) -> String { - self.to_string(|s| s.print_type(ty)) + Self::to_string(|s| s.print_type(ty)) } fn bounds_to_string(&self, bounds: &[ast::GenericBound]) -> String { - self.to_string(|s| s.print_type_bounds("", bounds)) + Self::to_string(|s| s.print_type_bounds("", bounds)) } fn pat_to_string(&self, pat: &ast::Pat) -> String { - self.to_string(|s| s.print_pat(pat)) + Self::to_string(|s| s.print_pat(pat)) } fn expr_to_string(&self, e: &ast::Expr) -> String { - self.to_string(|s| s.print_expr(e)) + Self::to_string(|s| s.print_expr(e)) } fn tt_to_string(&self, tt: &TokenTree) -> String { - self.to_string(|s| s.print_tt(tt, false)) + Self::to_string(|s| s.print_tt(tt, false)) } fn tts_to_string(&self, tokens: &TokenStream) -> String { - self.to_string(|s| s.print_tts(tokens, false)) + Self::to_string(|s| s.print_tts(tokens, false)) } fn stmt_to_string(&self, stmt: &ast::Stmt) -> String { - self.to_string(|s| s.print_stmt(stmt)) + Self::to_string(|s| s.print_stmt(stmt)) } fn item_to_string(&self, i: &ast::Item) -> String { - self.to_string(|s| s.print_item(i)) + Self::to_string(|s| s.print_item(i)) } fn generic_params_to_string(&self, generic_params: &[ast::GenericParam]) -> String { - self.to_string(|s| s.print_generic_params(generic_params)) + Self::to_string(|s| s.print_generic_params(generic_params)) } fn path_to_string(&self, p: &ast::Path) -> String { - self.to_string(|s| s.print_path(p, false, 0)) + Self::to_string(|s| s.print_path(p, false, 0)) } fn path_segment_to_string(&self, p: &ast::PathSegment) -> String { - self.to_string(|s| s.print_path_segment(p, false)) + Self::to_string(|s| s.print_path_segment(p, false)) } fn vis_to_string(&self, v: &ast::Visibility) -> String { - self.to_string(|s| s.print_visibility(v)) + Self::to_string(|s| s.print_visibility(v)) } fn block_to_string(&self, blk: &ast::Block) -> String { - self.to_string(|s| { + Self::to_string(|s| { // Containing cbox, will be closed by `print_block` at `}`. s.cbox(INDENT_UNIT); // Head-ibox, will be closed by `print_block` after `{`. @@ -851,22 +851,22 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere } fn meta_list_item_to_string(&self, li: &ast::NestedMetaItem) -> String { - self.to_string(|s| s.print_meta_list_item(li)) + Self::to_string(|s| s.print_meta_list_item(li)) } fn attr_item_to_string(&self, ai: &ast::AttrItem) -> String { - self.to_string(|s| s.print_attr_item(ai, ai.path.span)) + Self::to_string(|s| s.print_attr_item(ai, ai.path.span)) } fn attribute_to_string(&self, attr: &ast::Attribute) -> String { - self.to_string(|s| s.print_attribute(attr)) + Self::to_string(|s| s.print_attribute(attr)) } fn param_to_string(&self, arg: &ast::Param) -> String { - self.to_string(|s| s.print_param(arg, false)) + Self::to_string(|s| s.print_param(arg, false)) } - fn to_string(&self, f: impl FnOnce(&mut State<'_>)) -> String { + fn to_string(f: impl FnOnce(&mut State<'_>)) -> String { let mut printer = State::new(); f(&mut printer); printer.s.eof() @@ -1202,7 +1202,7 @@ impl<'a> State<'a> { ); } ast::ItemKind::Mod(unsafety, ref mod_kind) => { - self.head(self.to_string(|s| { + self.head(Self::to_string(|s| { s.print_visibility(&item.vis); s.print_unsafety(unsafety); s.word("mod"); @@ -1228,7 +1228,7 @@ impl<'a> State<'a> { } } ast::ItemKind::ForeignMod(ref nmod) => { - self.head(self.to_string(|s| { + self.head(Self::to_string(|s| { s.print_unsafety(nmod.unsafety); s.word("extern"); })); @@ -1450,7 +1450,7 @@ impl<'a> State<'a> { ast::CrateSugar::JustCrate => self.word_nbsp("crate"), }, ast::VisibilityKind::Restricted { ref path, .. } => { - let path = self.to_string(|s| s.print_path(path, false, 0)); + let path = Self::to_string(|s| s.print_path(path, false, 0)); if path == "self" || path == "super" { self.word_nbsp(format!("pub({})", path)) } else { diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs index e8d35cf5697..60ff18af0a9 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs @@ -18,6 +18,7 @@ use crate::llvm::debuginfo::{ use crate::value::Value; use cstr::cstr; +use rustc_codegen_ssa::debuginfo::type_names::cpp_like_debuginfo; use rustc_codegen_ssa::traits::*; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::fx::FxHashMap; @@ -933,16 +934,16 @@ fn basic_type_metadata<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, t: Ty<'tcx>) -> &'l // When targeting MSVC, emit MSVC style type names for compatibility with // .natvis visualizers (and perhaps other existing native debuggers?) - let msvc_like_names = cx.tcx.sess.target.is_like_msvc; + let cpp_like_debuginfo = cpp_like_debuginfo(cx.tcx); let (name, encoding) = match t.kind() { ty::Never => ("!", DW_ATE_unsigned), ty::Tuple(elements) if elements.is_empty() => ("()", DW_ATE_unsigned), ty::Bool => ("bool", DW_ATE_boolean), ty::Char => ("char", DW_ATE_unsigned_char), - ty::Int(int_ty) if msvc_like_names => (int_ty.msvc_basic_name(), DW_ATE_signed), - ty::Uint(uint_ty) if msvc_like_names => (uint_ty.msvc_basic_name(), DW_ATE_unsigned), - ty::Float(float_ty) if msvc_like_names => (float_ty.msvc_basic_name(), DW_ATE_float), + ty::Int(int_ty) if cpp_like_debuginfo => (int_ty.msvc_basic_name(), DW_ATE_signed), + ty::Uint(uint_ty) if cpp_like_debuginfo => (uint_ty.msvc_basic_name(), DW_ATE_unsigned), + ty::Float(float_ty) if cpp_like_debuginfo => (float_ty.msvc_basic_name(), DW_ATE_float), ty::Int(int_ty) => (int_ty.name_str(), DW_ATE_signed), ty::Uint(uint_ty) => (uint_ty.name_str(), DW_ATE_unsigned), ty::Float(float_ty) => (float_ty.name_str(), DW_ATE_float), @@ -959,7 +960,7 @@ fn basic_type_metadata<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, t: Ty<'tcx>) -> &'l ) }; - if !msvc_like_names { + if !cpp_like_debuginfo { return ty_metadata; } @@ -1525,13 +1526,6 @@ fn prepare_union_metadata<'ll, 'tcx>( // Enums //=----------------------------------------------------------------------------- -/// DWARF variant support is only available starting in LLVM 8, but -/// on MSVC we have to use the fallback mode, because LLVM doesn't -/// lower variant parts to PDB. -fn use_enum_fallback(cx: &CodegenCx<'_, '_>) -> bool { - cx.sess().target.is_like_msvc -} - // FIXME(eddyb) maybe precompute this? Right now it's computed once // per generator monomorphization, but it doesn't depend on substs. fn generator_layout_and_saved_local_names<'tcx>( @@ -1606,7 +1600,10 @@ impl<'ll, 'tcx> EnumMemberDescriptionFactory<'ll, 'tcx> { _ => bug!(), }; - let fallback = use_enum_fallback(cx); + // While LLVM supports generating debuginfo for variant types (enums), it doesn't support + // lowering that debuginfo to CodeView records for msvc targets. So if we are targeting + // msvc, then we need to use a different, fallback encoding of the debuginfo. + let fallback = cpp_like_debuginfo(cx.tcx); // This will always find the metadata in the type map. let self_metadata = type_metadata(cx, self.enum_type, self.span); @@ -2159,7 +2156,10 @@ fn prepare_enum_metadata<'ll, 'tcx>( return FinalMetadata(discriminant_type_metadata(tag.value)); } - if use_enum_fallback(cx) { + // While LLVM supports generating debuginfo for variant types (enums), it doesn't support + // lowering that debuginfo to CodeView records for msvc targets. So if we are targeting + // msvc, then we need to use a different encoding of the debuginfo. + if cpp_like_debuginfo(tcx) { let discriminant_type_metadata = match layout.variants { Variants::Single { .. } => None, Variants::Multiple { tag_encoding: TagEncoding::Niche { .. }, tag, .. } diff --git a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs index 00e76800d47..93bb1aee25f 100644 --- a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs +++ b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs @@ -53,14 +53,14 @@ fn push_debuginfo_type_name<'tcx>( ) { // When targeting MSVC, emit C++ style type names for compatibility with // .natvis visualizers (and perhaps other existing native debuggers?) - let cpp_like_names = cpp_like_names(tcx); + let cpp_like_debuginfo = cpp_like_debuginfo(tcx); match *t.kind() { ty::Bool => output.push_str("bool"), ty::Char => output.push_str("char"), ty::Str => output.push_str("str"), ty::Never => { - if cpp_like_names { + if cpp_like_debuginfo { output.push_str("never$"); } else { output.push('!'); @@ -71,7 +71,7 @@ fn push_debuginfo_type_name<'tcx>( ty::Float(float_ty) => output.push_str(float_ty.name_str()), ty::Foreign(def_id) => push_item_name(tcx, def_id, qualified, output), ty::Adt(def, substs) => { - if def.is_enum() && cpp_like_names { + if def.is_enum() && cpp_like_debuginfo { msvc_enum_fallback(tcx, t, def, substs, output, visited); } else { push_item_name(tcx, def.did, qualified, output); @@ -79,7 +79,7 @@ fn push_debuginfo_type_name<'tcx>( } } ty::Tuple(component_types) => { - if cpp_like_names { + if cpp_like_debuginfo { output.push_str("tuple$<"); } else { output.push('('); @@ -87,20 +87,20 @@ fn push_debuginfo_type_name<'tcx>( for component_type in component_types { push_debuginfo_type_name(tcx, component_type.expect_ty(), true, output, visited); - push_arg_separator(cpp_like_names, output); + push_arg_separator(cpp_like_debuginfo, output); } if !component_types.is_empty() { pop_arg_separator(output); } - if cpp_like_names { - push_close_angle_bracket(cpp_like_names, output); + if cpp_like_debuginfo { + push_close_angle_bracket(cpp_like_debuginfo, output); } else { output.push(')'); } } ty::RawPtr(ty::TypeAndMut { ty: inner_type, mutbl }) => { - if cpp_like_names { + if cpp_like_debuginfo { match mutbl { hir::Mutability::Not => output.push_str("ptr_const$<"), hir::Mutability::Mut => output.push_str("ptr_mut$<"), @@ -115,8 +115,8 @@ fn push_debuginfo_type_name<'tcx>( push_debuginfo_type_name(tcx, inner_type, qualified, output, visited); - if cpp_like_names { - push_close_angle_bracket(cpp_like_names, output); + if cpp_like_debuginfo { + push_close_angle_bracket(cpp_like_debuginfo, output); } } ty::Ref(_, inner_type, mutbl) => { @@ -126,7 +126,7 @@ fn push_debuginfo_type_name<'tcx>( // types out to aid debugging in MSVC. let is_slice_or_str = matches!(*inner_type.kind(), ty::Slice(_) | ty::Str); - if !cpp_like_names { + if !cpp_like_debuginfo { output.push('&'); output.push_str(mutbl.prefix_str()); } else if !is_slice_or_str { @@ -138,12 +138,12 @@ fn push_debuginfo_type_name<'tcx>( push_debuginfo_type_name(tcx, inner_type, qualified, output, visited); - if cpp_like_names && !is_slice_or_str { - push_close_angle_bracket(cpp_like_names, output); + if cpp_like_debuginfo && !is_slice_or_str { + push_close_angle_bracket(cpp_like_debuginfo, output); } } ty::Array(inner_type, len) => { - if cpp_like_names { + if cpp_like_debuginfo { output.push_str("array$<"); push_debuginfo_type_name(tcx, inner_type, true, output, visited); match len.val { @@ -162,7 +162,7 @@ fn push_debuginfo_type_name<'tcx>( } } ty::Slice(inner_type) => { - if cpp_like_names { + if cpp_like_debuginfo { output.push_str("slice$<"); } else { output.push('['); @@ -170,8 +170,8 @@ fn push_debuginfo_type_name<'tcx>( push_debuginfo_type_name(tcx, inner_type, true, output, visited); - if cpp_like_names { - push_close_angle_bracket(cpp_like_names, output); + if cpp_like_debuginfo { + push_close_angle_bracket(cpp_like_debuginfo, output); } else { output.push(']'); } @@ -179,7 +179,7 @@ fn push_debuginfo_type_name<'tcx>( ty::Dynamic(ref trait_data, ..) => { let auto_traits: SmallVec<[DefId; 4]> = trait_data.auto_traits().collect(); - let has_enclosing_parens = if cpp_like_names { + let has_enclosing_parens = if cpp_like_debuginfo { output.push_str("dyn$<"); false } else { @@ -216,14 +216,14 @@ fn push_debuginfo_type_name<'tcx>( } for (item_def_id, ty) in projection_bounds { - push_arg_separator(cpp_like_names, output); + push_arg_separator(cpp_like_debuginfo, output); - if cpp_like_names { + if cpp_like_debuginfo { output.push_str("assoc$<"); push_item_name(tcx, item_def_id, false, output); - push_arg_separator(cpp_like_names, output); + push_arg_separator(cpp_like_debuginfo, output); push_debuginfo_type_name(tcx, ty, true, output, visited); - push_close_angle_bracket(cpp_like_names, output); + push_close_angle_bracket(cpp_like_debuginfo, output); } else { push_item_name(tcx, item_def_id, false, output); output.push('='); @@ -231,11 +231,11 @@ fn push_debuginfo_type_name<'tcx>( } } - push_close_angle_bracket(cpp_like_names, output); + push_close_angle_bracket(cpp_like_debuginfo, output); } if auto_traits.len() != 0 { - push_auto_trait_separator(cpp_like_names, output); + push_auto_trait_separator(cpp_like_debuginfo, output); } } @@ -252,14 +252,14 @@ fn push_debuginfo_type_name<'tcx>( for auto_trait in auto_traits { output.push_str(&auto_trait); - push_auto_trait_separator(cpp_like_names, output); + push_auto_trait_separator(cpp_like_debuginfo, output); } pop_auto_trait_separator(output); } - if cpp_like_names { - push_close_angle_bracket(cpp_like_names, output); + if cpp_like_debuginfo { + push_close_angle_bracket(cpp_like_debuginfo, output); } else if has_enclosing_parens { output.push(')'); } @@ -279,7 +279,7 @@ fn push_debuginfo_type_name<'tcx>( // use a dummy string that should make it clear // that something unusual is going on if !visited.insert(t) { - output.push_str(if cpp_like_names { + output.push_str(if cpp_like_debuginfo { "recursive_type$" } else { "<recursive_type>" @@ -290,7 +290,7 @@ fn push_debuginfo_type_name<'tcx>( let sig = tcx.normalize_erasing_late_bound_regions(ty::ParamEnv::reveal_all(), t.fn_sig(tcx)); - if cpp_like_names { + if cpp_like_debuginfo { // Format as a C++ function pointer: return_type (*)(params...) if sig.output().is_unit() { output.push_str("void"); @@ -313,7 +313,7 @@ fn push_debuginfo_type_name<'tcx>( if !sig.inputs().is_empty() { for ¶meter_type in sig.inputs() { push_debuginfo_type_name(tcx, parameter_type, true, output, visited); - push_arg_separator(cpp_like_names, output); + push_arg_separator(cpp_like_debuginfo, output); } pop_arg_separator(output); } @@ -328,7 +328,7 @@ fn push_debuginfo_type_name<'tcx>( output.push(')'); - if !cpp_like_names && !sig.output().is_unit() { + if !cpp_like_debuginfo && !sig.output().is_unit() { output.push_str(" -> "); push_debuginfo_type_name(tcx, sig.output(), true, output, visited); } @@ -426,9 +426,9 @@ fn push_debuginfo_type_name<'tcx>( const NON_CPP_AUTO_TRAIT_SEPARATOR: &str = " + "; - fn push_auto_trait_separator(cpp_like_names: bool, output: &mut String) { - if cpp_like_names { - push_arg_separator(cpp_like_names, output); + fn push_auto_trait_separator(cpp_like_debuginfo: bool, output: &mut String) { + if cpp_like_debuginfo { + push_arg_separator(cpp_like_debuginfo, output); } else { output.push_str(NON_CPP_AUTO_TRAIT_SEPARATOR); } @@ -457,11 +457,11 @@ pub fn compute_debuginfo_vtable_name<'tcx>( t: Ty<'tcx>, trait_ref: Option<ty::PolyExistentialTraitRef<'tcx>>, ) -> String { - let cpp_like_names = cpp_like_names(tcx); + let cpp_like_debuginfo = cpp_like_debuginfo(tcx); let mut vtable_name = String::with_capacity(64); - if cpp_like_names { + if cpp_like_debuginfo { vtable_name.push_str("impl$<"); } else { vtable_name.push('<'); @@ -470,7 +470,7 @@ pub fn compute_debuginfo_vtable_name<'tcx>( let mut visited = FxHashSet::default(); push_debuginfo_type_name(tcx, t, true, &mut vtable_name, &mut visited); - if cpp_like_names { + if cpp_like_debuginfo { vtable_name.push_str(", "); } else { vtable_name.push_str(" as "); @@ -486,9 +486,9 @@ pub fn compute_debuginfo_vtable_name<'tcx>( vtable_name.push_str("_"); } - push_close_angle_bracket(cpp_like_names, &mut vtable_name); + push_close_angle_bracket(cpp_like_debuginfo, &mut vtable_name); - let suffix = if cpp_like_names { "::vtable$" } else { "::{vtable}" }; + let suffix = if cpp_like_debuginfo { "::vtable$" } else { "::{vtable}" }; vtable_name.reserve_exact(suffix.len()); vtable_name.push_str(suffix); @@ -521,7 +521,7 @@ fn push_unqualified_item_name( DefPathData::ClosureExpr if tcx.generator_kind(def_id).is_some() => { // Generators look like closures, but we want to treat them differently // in the debug info. - if cpp_like_names(tcx) { + if cpp_like_debuginfo(tcx) { write!(output, "generator${}", disambiguated_data.disambiguator).unwrap(); } else { write!(output, "{{generator#{}}}", disambiguated_data.disambiguator).unwrap(); @@ -532,7 +532,7 @@ fn push_unqualified_item_name( output.push_str(name.as_str()); } DefPathDataName::Anon { namespace } => { - if cpp_like_names(tcx) { + if cpp_like_debuginfo(tcx) { write!(output, "{}${}", namespace, disambiguated_data.disambiguator).unwrap(); } else { write!(output, "{{{}#{}}}", namespace, disambiguated_data.disambiguator) @@ -560,7 +560,7 @@ fn push_generic_params_internal<'tcx>( debug_assert_eq!(substs, tcx.normalize_erasing_regions(ty::ParamEnv::reveal_all(), substs)); - let cpp_like_names = cpp_like_names(tcx); + let cpp_like_debuginfo = cpp_like_debuginfo(tcx); output.push('<'); @@ -575,10 +575,10 @@ fn push_generic_params_internal<'tcx>( other => bug!("Unexpected non-erasable generic: {:?}", other), } - push_arg_separator(cpp_like_names, output); + push_arg_separator(cpp_like_debuginfo, output); } pop_arg_separator(output); - push_close_angle_bracket(cpp_like_names, output); + push_close_angle_bracket(cpp_like_debuginfo, output); true } @@ -617,7 +617,7 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: &'tcx ty::Const<'tcx>, output: // avoiding collisions and will make the emitted type names shorter. let hash: u64 = hasher.finish(); - if cpp_like_names(tcx) { + if cpp_like_debuginfo(tcx) { write!(output, "CONST${:x}", hash) } else { write!(output, "{{CONST#{:x}}}", hash) @@ -634,10 +634,10 @@ pub fn push_generic_params<'tcx>(tcx: TyCtxt<'tcx>, substs: SubstsRef<'tcx>, out push_generic_params_internal(tcx, substs, output, &mut visited); } -fn push_close_angle_bracket(cpp_like_names: bool, output: &mut String) { +fn push_close_angle_bracket(cpp_like_debuginfo: bool, output: &mut String) { // MSVC debugger always treats `>>` as a shift, even when parsing templates, // so add a space to avoid confusion. - if cpp_like_names && output.ends_with('>') { + if cpp_like_debuginfo && output.ends_with('>') { output.push(' ') }; @@ -652,11 +652,11 @@ fn pop_close_angle_bracket(output: &mut String) { } } -fn push_arg_separator(cpp_like_names: bool, output: &mut String) { +fn push_arg_separator(cpp_like_debuginfo: bool, output: &mut String) { // Natvis does not always like having spaces between parts of the type name // and this causes issues when we need to write a typename in natvis, for example // as part of a cast like the `HashMap` visualizer does. - if cpp_like_names { + if cpp_like_debuginfo { output.push(','); } else { output.push_str(", "); @@ -673,6 +673,7 @@ fn pop_arg_separator(output: &mut String) { output.pop(); } -fn cpp_like_names(tcx: TyCtxt<'_>) -> bool { +/// Check if we should generate C++ like names and debug information. +pub fn cpp_like_debuginfo(tcx: TyCtxt<'_>) -> bool { tcx.sess.target.is_like_msvc } diff --git a/compiler/rustc_span/src/def_id.rs b/compiler/rustc_span/src/def_id.rs index f6b0785a07c..24d2a8ac073 100644 --- a/compiler/rustc_span/src/def_id.rs +++ b/compiler/rustc_span/src/def_id.rs @@ -136,8 +136,8 @@ impl Borrow<Fingerprint> for DefPathHash { /// collisions when loading crates and abort compilation in order to avoid /// further trouble. /// -/// See the discussion in [`DefId`] for more information -/// on the possibility of hash collisions in rustc, +/// For more information on the possibility of hash collisions in rustc, +/// see the discussion in [`DefId`]. #[derive(Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord, Debug)] #[derive(HashStable_Generic, Encodable, Decodable)] pub struct StableCrateId(pub(crate) u64); diff --git a/library/core/src/char/convert.rs b/library/core/src/char/convert.rs index c4046d7496f..1774ddd7cbb 100644 --- a/library/core/src/char/convert.rs +++ b/library/core/src/char/convert.rs @@ -1,5 +1,6 @@ //! Character conversions. +use crate::char::TryFromCharError; use crate::convert::TryFrom; use crate::fmt; use crate::mem::transmute; @@ -166,6 +167,20 @@ impl const From<char> for u128 { } } +/// Map `char` with code point in U+0000..=U+00FF to byte in 0x00..=0xFF with same value, failing +/// if the code point is greater than U+00FF. +/// +/// See [`impl From<u8> for char`](char#impl-From<u8>) for details on the encoding. +#[stable(feature = "u8_from_char", since = "1.59.0")] +impl TryFrom<char> for u8 { + type Error = TryFromCharError; + + #[inline] + fn try_from(c: char) -> Result<u8, Self::Error> { + u8::try_from(u32::from(c)).map_err(|_| TryFromCharError(())) + } +} + /// Maps a byte in 0x00..=0xFF to a `char` whose code point has the same value, in U+0000..=U+00FF. /// /// Unicode is designed such that this effectively decodes bytes diff --git a/library/core/src/char/mod.rs b/library/core/src/char/mod.rs index 5f30d5790a0..f65f84e93ae 100644 --- a/library/core/src/char/mod.rs +++ b/library/core/src/char/mod.rs @@ -544,3 +544,15 @@ impl fmt::Display for ToUppercase { fmt::Display::fmt(&self.0, f) } } + +/// The error type returned when a checked char conversion fails. +#[stable(feature = "u8_from_char", since = "1.59.0")] +#[derive(Debug, Copy, Clone, PartialEq, Eq)] +pub struct TryFromCharError(pub(crate) ()); + +#[stable(feature = "u8_from_char", since = "1.59.0")] +impl fmt::Display for TryFromCharError { + fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result { + "unicode code point out of range".fmt(fmt) + } +} diff --git a/library/core/src/mem/mod.rs b/library/core/src/mem/mod.rs index 7d005666a74..989ec0639cd 100644 --- a/library/core/src/mem/mod.rs +++ b/library/core/src/mem/mod.rs @@ -1045,6 +1045,10 @@ pub const fn discriminant<T>(v: &T) -> Discriminant<T> { /// return value is unspecified. Equally, if `T` is an enum with more variants than `usize::MAX` /// the return value is unspecified. Uninhabited variants will be counted. /// +/// Note that an enum may be expanded with additional variants in the future +/// as a non-breaking change, for example if it is marked `#[non_exhaustive]`, +/// which will change the result of this function. +/// /// # Examples /// /// ``` diff --git a/library/core/src/num/f32.rs b/library/core/src/num/f32.rs index c4a232ef36c..85ceede5b9e 100644 --- a/library/core/src/num/f32.rs +++ b/library/core/src/num/f32.rs @@ -628,6 +628,7 @@ impl f32 { /// /// assert!(abs_difference <= f32::EPSILON); /// ``` + #[must_use = "this returns the result of the operation, without modifying the original"] #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn recip(self) -> f32 { @@ -684,6 +685,7 @@ impl f32 { /// ``` /// /// If one of the arguments is NaN, then the other argument is returned. + #[must_use = "this returns the result of the comparison, without modifying either input"] #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn max(self, other: f32) -> f32 { @@ -703,6 +705,7 @@ impl f32 { /// ``` /// /// If one of the arguments is NaN, then the other argument is returned. + #[must_use = "this returns the result of the comparison, without modifying either input"] #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn min(self, other: f32) -> f32 { @@ -726,6 +729,7 @@ impl f32 { /// If one of the arguments is NaN, then NaN is returned. Otherwise this returns the greater /// of the two numbers. For this operation, -0.0 is considered to be less than +0.0. /// Note that this follows the semantics specified in IEEE 754-2019. + #[must_use = "this returns the result of the comparison, without modifying either input"] #[unstable(feature = "float_minimum_maximum", issue = "91079")] #[inline] pub fn maximum(self, other: f32) -> f32 { @@ -757,6 +761,7 @@ impl f32 { /// If one of the arguments is NaN, then NaN is returned. Otherwise this returns the lesser /// of the two numbers. For this operation, -0.0 is considered to be less than +0.0. /// Note that this follows the semantics specified in IEEE 754-2019. + #[must_use = "this returns the result of the comparison, without modifying either input"] #[unstable(feature = "float_minimum_maximum", issue = "91079")] #[inline] pub fn minimum(self, other: f32) -> f32 { diff --git a/library/core/src/num/f64.rs b/library/core/src/num/f64.rs index 85ee6aa2cb8..4049c95b130 100644 --- a/library/core/src/num/f64.rs +++ b/library/core/src/num/f64.rs @@ -643,6 +643,7 @@ impl f64 { /// /// assert!(abs_difference < 1e-10); /// ``` + #[must_use = "this returns the result of the operation, without modifying the original"] #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn recip(self) -> f64 { @@ -700,6 +701,7 @@ impl f64 { /// ``` /// /// If one of the arguments is NaN, then the other argument is returned. + #[must_use = "this returns the result of the comparison, without modifying either input"] #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn max(self, other: f64) -> f64 { @@ -719,6 +721,7 @@ impl f64 { /// ``` /// /// If one of the arguments is NaN, then the other argument is returned. + #[must_use = "this returns the result of the comparison, without modifying either input"] #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn min(self, other: f64) -> f64 { @@ -742,6 +745,7 @@ impl f64 { /// If one of the arguments is NaN, then NaN is returned. Otherwise this returns the greater /// of the two numbers. For this operation, -0.0 is considered to be less than +0.0. /// Note that this follows the semantics specified in IEEE 754-2019. + #[must_use = "this returns the result of the comparison, without modifying either input"] #[unstable(feature = "float_minimum_maximum", issue = "91079")] #[inline] pub fn maximum(self, other: f64) -> f64 { @@ -773,6 +777,7 @@ impl f64 { /// If one of the arguments is NaN, then NaN is returned. Otherwise this returns the lesser /// of the two numbers. For this operation, -0.0 is considered to be less than +0.0. /// Note that this follows the semantics specified in IEEE 754-2019. + #[must_use = "this returns the result of the comparison, without modifying either input"] #[unstable(feature = "float_minimum_maximum", issue = "91079")] #[inline] pub fn minimum(self, other: f64) -> f64 { diff --git a/library/std/src/error.rs b/library/std/src/error.rs index 6ae0bc47a94..ea0c230fa42 100644 --- a/library/std/src/error.rs +++ b/library/std/src/error.rs @@ -478,6 +478,9 @@ impl Error for char::DecodeUtf16Error { } } +#[stable(feature = "u8_from_char", since = "1.59.0")] +impl Error for char::TryFromCharError {} + #[unstable(feature = "map_try_insert", issue = "82766")] impl<'a, K: Debug + Ord, V: Debug> Error for crate::collections::btree_map::OccupiedError<'a, K, V> diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs index 9f7f10d0d00..ae4b65871ec 100644 --- a/library/std/src/thread/mod.rs +++ b/library/std/src/thread/mod.rs @@ -1504,7 +1504,6 @@ fn _assert_sync_and_send() { /// /// ``` /// # #![allow(dead_code)] -/// #![feature(available_parallelism)] /// use std::{io, thread}; /// /// fn main() -> io::Result<()> { @@ -1516,7 +1515,7 @@ fn _assert_sync_and_send() { #[doc(alias = "available_concurrency")] // Alias for a previous name we gave this API on unstable. #[doc(alias = "hardware_concurrency")] // Alias for C++ `std::thread::hardware_concurrency`. #[doc(alias = "num_cpus")] // Alias for a popular ecosystem crate which provides similar functionality. -#[unstable(feature = "available_parallelism", issue = "74479")] +#[stable(feature = "available_parallelism", since = "1.59.0")] pub fn available_parallelism() -> io::Result<NonZeroUsize> { imp::available_parallelism() } diff --git a/library/test/src/lib.rs b/library/test/src/lib.rs index 608e587cf34..fad83094cdf 100644 --- a/library/test/src/lib.rs +++ b/library/test/src/lib.rs @@ -16,7 +16,6 @@ #![unstable(feature = "test", issue = "50297")] #![doc(test(attr(deny(warnings))))] #![feature(nll)] -#![feature(available_parallelism)] #![feature(bench_black_box)] #![feature(internal_output_capture)] #![feature(staged_api)] diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css index 28cb8ae48e2..83df3ac94a2 100644 --- a/src/librustdoc/html/static/css/rustdoc.css +++ b/src/librustdoc/html/static/css/rustdoc.css @@ -545,6 +545,10 @@ nav.sub { position: relative; } +.search-loading { + text-align: center; +} + #results > table { width: 100%; table-layout: fixed; diff --git a/src/librustdoc/html/static/js/main.js b/src/librustdoc/html/static/js/main.js index f81f6d5d61f..f41c1bd817a 100644 --- a/src/librustdoc/html/static/js/main.js +++ b/src/librustdoc/html/static/js/main.js @@ -289,8 +289,8 @@ function hideThemeButtonState() { var params = searchState.getQueryStringParams(); if (params.search !== undefined) { var search = searchState.outputElement(); - search.innerHTML = "<h3 style=\"text-align: center;\">" + - searchState.loadingText + "</h3>"; + search.innerHTML = "<h3 class=\"search-loading\">" + + searchState.loadingText + "</h3>"; searchState.showResults(search); loadSearch(); } |