diff --git a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs index 051753715913a..53953b089c613 100644 --- a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs +++ b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs @@ -367,9 +367,7 @@ fn push_debuginfo_type_name<'tcx>( output.push_str(sig.safety.prefix_str()); if sig.abi != rustc_abi::ExternAbi::Rust { - output.push_str("extern \""); - output.push_str(sig.abi.name()); - output.push_str("\" "); + let _ = write!(output, "extern {} ", sig.abi); } output.push_str("fn("); diff --git a/compiler/rustc_errors/src/diagnostic_impls.rs b/compiler/rustc_errors/src/diagnostic_impls.rs index 14baf7554bcf6..7f383946c1463 100644 --- a/compiler/rustc_errors/src/diagnostic_impls.rs +++ b/compiler/rustc_errors/src/diagnostic_impls.rs @@ -93,6 +93,7 @@ into_diag_arg_using_display!( SplitDebuginfo, ExitStatus, ErrCode, + rustc_abi::ExternAbi, ); impl IntoDiagArg for rustc_type_ir::TraitRef { diff --git a/compiler/rustc_hir_analysis/messages.ftl b/compiler/rustc_hir_analysis/messages.ftl index 258267c5ca929..d7b43a8126d8f 100644 --- a/compiler/rustc_hir_analysis/messages.ftl +++ b/compiler/rustc_hir_analysis/messages.ftl @@ -72,17 +72,17 @@ hir_analysis_cmse_entry_generic = functions with the `"C-cmse-nonsecure-entry"` ABI cannot contain generics in their type hir_analysis_cmse_inputs_stack_spill = - arguments for `"{$abi_name}"` function too large to pass via registers + arguments for `{$abi}` function too large to pass via registers .label = {$plural -> [false] this argument doesn't *[true] these arguments don't } fit in the available registers - .note = functions with the `"{$abi_name}"` ABI must pass all their arguments via the 4 32-bit available argument registers + .note = functions with the `{$abi}` ABI must pass all their arguments via the 4 32-bit available argument registers hir_analysis_cmse_output_stack_spill = - return value of `"{$abi_name}"` function too large to pass via registers + return value of `{$abi}` function too large to pass via registers .label = this type doesn't fit in the available registers - .note1 = functions with the `"{$abi_name}"` ABI must pass their result via the available return registers + .note1 = functions with the `{$abi}` ABI must pass their result via the available return registers .note2 = the result must either be a (transparently wrapped) i64, u64 or f64, or be at most 4 bytes in size hir_analysis_coerce_pointee_no_field = `CoercePointee` can only be derived on `struct`s with at least one field diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index ce7319f656190..126237799562f 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -614,9 +614,10 @@ impl<'tcx> HirTyLowerer<'tcx> for ItemCtxt<'tcx> { if !infer_replacements.is_empty() { diag.multipart_suggestion( format!( - "try replacing `_` with the type{} in the corresponding trait method signature", - rustc_errors::pluralize!(infer_replacements.len()), - ), + "try replacing `_` with the type{} in the corresponding trait method \ + signature", + rustc_errors::pluralize!(infer_replacements.len()), + ), infer_replacements, Applicability::MachineApplicable, ); diff --git a/compiler/rustc_hir_analysis/src/errors.rs b/compiler/rustc_hir_analysis/src/errors.rs index 12750543f4bf7..0d0fe9d981f95 100644 --- a/compiler/rustc_hir_analysis/src/errors.rs +++ b/compiler/rustc_hir_analysis/src/errors.rs @@ -1,5 +1,6 @@ //! Errors emitted by `rustc_hir_analysis`. +use rustc_abi::ExternAbi; use rustc_errors::codes::*; use rustc_errors::{ Applicability, Diag, DiagCtxtHandle, Diagnostic, EmissionGuarantee, Level, MultiSpan, @@ -1689,7 +1690,7 @@ pub(crate) struct CmseInputsStackSpill { #[label] pub span: Span, pub plural: bool, - pub abi_name: &'static str, + pub abi: ExternAbi, } #[derive(Diagnostic)] @@ -1700,7 +1701,7 @@ pub(crate) struct CmseOutputStackSpill { #[primary_span] #[label] pub span: Span, - pub abi_name: &'static str, + pub abi: ExternAbi, } #[derive(Diagnostic)] diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs index 4c8f2735b9795..5fed2e352879c 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs @@ -17,8 +17,6 @@ pub(crate) fn validate_cmse_abi<'tcx>( abi: ExternAbi, fn_sig: ty::PolyFnSig<'tcx>, ) { - let abi_name = abi.name(); - match abi { ExternAbi::CCmseNonSecureCall => { let hir_node = tcx.hir_node(hir_id); @@ -56,7 +54,7 @@ pub(crate) fn validate_cmse_abi<'tcx>( .to(bare_fn_ty.decl.inputs[index].span) .to(bare_fn_ty.decl.inputs.last().unwrap().span); let plural = bare_fn_ty.param_names.len() - index != 1; - dcx.emit_err(errors::CmseInputsStackSpill { span, plural, abi_name }); + dcx.emit_err(errors::CmseInputsStackSpill { span, plural, abi }); } Err(layout_err) => { if should_emit_generic_error(abi, layout_err) { @@ -69,7 +67,7 @@ pub(crate) fn validate_cmse_abi<'tcx>( Ok(true) => {} Ok(false) => { let span = bare_fn_ty.decl.output.span(); - dcx.emit_err(errors::CmseOutputStackSpill { span, abi_name }); + dcx.emit_err(errors::CmseOutputStackSpill { span, abi }); } Err(layout_err) => { if should_emit_generic_error(abi, layout_err) { @@ -92,7 +90,7 @@ pub(crate) fn validate_cmse_abi<'tcx>( // ^^^^^^ let span = decl.inputs[index].span.to(decl.inputs.last().unwrap().span); let plural = decl.inputs.len() - index != 1; - dcx.emit_err(errors::CmseInputsStackSpill { span, plural, abi_name }); + dcx.emit_err(errors::CmseInputsStackSpill { span, plural, abi }); } Err(layout_err) => { if should_emit_generic_error(abi, layout_err) { @@ -105,7 +103,7 @@ pub(crate) fn validate_cmse_abi<'tcx>( Ok(true) => {} Ok(false) => { let span = decl.output.span(); - dcx.emit_err(errors::CmseOutputStackSpill { span, abi_name }); + dcx.emit_err(errors::CmseOutputStackSpill { span, abi }); } Err(layout_err) => { if should_emit_generic_error(abi, layout_err) { diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs index 79aa2f4b8ccd2..7eb982a31798c 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs @@ -6,7 +6,7 @@ use rustc_errors::{ Applicability, Diag, ErrorGuaranteed, MultiSpan, listify, pluralize, struct_span_code_err, }; use rustc_hir as hir; -use rustc_hir::def::{DefKind, Res}; +use rustc_hir::def::{CtorOf, DefKind, Res}; use rustc_hir::def_id::DefId; use rustc_middle::bug; use rustc_middle::ty::fast_reject::{TreatParams, simplify_type}; @@ -1027,7 +1027,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { &self, segments: impl Iterator> + Clone, args_visitors: impl Iterator> + Clone, - err_extend: GenericsArgsErrExtend<'_>, + err_extend: GenericsArgsErrExtend<'a>, ) -> ErrorGuaranteed { #[derive(PartialEq, Eq, Hash)] enum ProhibitGenericsArg { @@ -1047,23 +1047,24 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { }; }); + let segments: Vec<_> = segments.collect(); let types_and_spans: Vec<_> = segments - .clone() + .iter() .flat_map(|segment| { if segment.args().args.is_empty() { None } else { Some(( match segment.res { - hir::def::Res::PrimTy(ty) => { + Res::PrimTy(ty) => { format!("{} `{}`", segment.res.descr(), ty.name()) } - hir::def::Res::Def(_, def_id) + Res::Def(_, def_id) if let Some(name) = self.tcx().opt_item_name(def_id) => { format!("{} `{name}`", segment.res.descr()) } - hir::def::Res::Err => "this type".to_string(), + Res::Err => "this type".to_string(), _ => segment.res.descr().to_string(), }, segment.ident.span, @@ -1074,11 +1075,8 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { let this_type = listify(&types_and_spans, |(t, _)| t.to_string()) .expect("expected one segment to deny"); - let arg_spans: Vec = segments - .clone() - .flat_map(|segment| segment.args().args) - .map(|arg| arg.span()) - .collect(); + let arg_spans: Vec = + segments.iter().flat_map(|segment| segment.args().args).map(|arg| arg.span()).collect(); let mut kinds = Vec::with_capacity(4); prohibit_args.iter().for_each(|arg| match arg { @@ -1103,7 +1101,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { for (what, span) in types_and_spans { err.span_label(span, format!("not allowed on {what}")); } - generics_args_err_extend(self.tcx(), segments, &mut err, err_extend); + generics_args_err_extend(self.tcx(), segments.into_iter(), &mut err, err_extend); err.emit() } @@ -1400,7 +1398,7 @@ pub enum GenericsArgsErrExtend<'tcx> { }, SelfTyParam(Span), Param(DefId), - DefVariant, + DefVariant(&'tcx [hir::PathSegment<'tcx>]), None, } @@ -1408,7 +1406,7 @@ fn generics_args_err_extend<'a>( tcx: TyCtxt<'_>, segments: impl Iterator> + Clone, err: &mut Diag<'_>, - err_extend: GenericsArgsErrExtend<'_>, + err_extend: GenericsArgsErrExtend<'a>, ) { match err_extend { GenericsArgsErrExtend::EnumVariant { qself, assoc_segment, adt_def } => { @@ -1496,6 +1494,32 @@ fn generics_args_err_extend<'a>( ]; err.multipart_suggestion_verbose(msg, suggestion, Applicability::MaybeIncorrect); } + GenericsArgsErrExtend::DefVariant(segments) => { + let args: Vec = segments + .iter() + .filter_map(|segment| match segment.res { + Res::Def( + DefKind::Ctor(CtorOf::Variant, _) | DefKind::Variant | DefKind::Enum, + _, + ) => segment.args().span_ext().map(|s| s.with_lo(segment.ident.span.hi())), + _ => None, + }) + .collect(); + if args.len() > 1 + && let Some(span) = args.into_iter().last() + { + err.note( + "generic arguments are not allowed on both an enum and its variant's path \ + segments simultaneously; they are only valid in one place or the other", + ); + err.span_suggestion_verbose( + span, + "remove the generics arguments from one of the path segments", + String::new(), + Applicability::MaybeIncorrect, + ); + } + } GenericsArgsErrExtend::PrimTy(prim_ty) => { let name = prim_ty.name_str(); for segment in segments { @@ -1512,9 +1536,6 @@ fn generics_args_err_extend<'a>( GenericsArgsErrExtend::OpaqueTy => { err.note("`impl Trait` types can't have type parameters"); } - GenericsArgsErrExtend::DefVariant => { - err.note("enum variants can't have type parameters"); - } GenericsArgsErrExtend::Param(def_id) => { let span = tcx.def_ident_span(def_id).unwrap(); let kind = tcx.def_descr(def_id); diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs index 697852c5ed337..c6e47a804dc8d 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs @@ -1694,7 +1694,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { pub fn prohibit_generic_args<'a>( &self, segments: impl Iterator> + Clone, - err_extend: GenericsArgsErrExtend<'_>, + err_extend: GenericsArgsErrExtend<'a>, ) -> Result<(), ErrorGuaranteed> { let args_visitors = segments.clone().flat_map(|segment| segment.args().args); let mut result = Ok(()); @@ -1911,7 +1911,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { path.segments.iter().enumerate().filter_map(|(index, seg)| { if !indices.contains(&index) { Some(seg) } else { None } }), - GenericsArgsErrExtend::DefVariant, + GenericsArgsErrExtend::DefVariant(&path.segments), ); let GenericPathSegment(def_id, index) = generic_segments.last().unwrap(); diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index 6bb8cf5f33159..e74ffeff343a2 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -1043,12 +1043,17 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut user_self_ty = None; let mut is_alias_variant_ctor = false; + let mut err_extend = GenericsArgsErrExtend::None; match res { Res::Def(DefKind::Ctor(CtorOf::Variant, _), _) if let Some(self_ty) = self_ty => { let adt_def = self_ty.normalized.ty_adt_def().unwrap(); user_self_ty = Some(UserSelfTy { impl_def_id: adt_def.did(), self_ty: self_ty.raw }); is_alias_variant_ctor = true; + err_extend = GenericsArgsErrExtend::DefVariant(segments); + } + Res::Def(DefKind::Ctor(CtorOf::Variant, _), _) => { + err_extend = GenericsArgsErrExtend::DefVariant(segments); } Res::Def(DefKind::AssocFn | DefKind::AssocConst, def_id) => { let assoc_item = tcx.associated_item(def_id); @@ -1095,7 +1100,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { segments.iter().enumerate().filter_map(|(index, seg)| { if !indices.contains(&index) || is_alias_variant_ctor { Some(seg) } else { None } }), - GenericsArgsErrExtend::None, + err_extend, ); if let Res::Local(hid) = res { diff --git a/compiler/rustc_lint/src/early/diagnostics.rs b/compiler/rustc_lint/src/early/diagnostics.rs index 92dbc76a7b5ec..aeb5a03a4f7e3 100644 --- a/compiler/rustc_lint/src/early/diagnostics.rs +++ b/compiler/rustc_lint/src/early/diagnostics.rs @@ -160,8 +160,7 @@ pub(super) fn decorate_lint( .decorate_lint(diag); } BuiltinLintDiag::MissingAbi(label_span, default_abi) => { - lints::MissingAbi { span: label_span, default_abi: default_abi.name() } - .decorate_lint(diag); + lints::MissingAbi { span: label_span, default_abi }.decorate_lint(diag); } BuiltinLintDiag::LegacyDeriveHelpers(label_span) => { lints::LegacyDeriveHelpers { span: label_span }.decorate_lint(diag); diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs index 09b0e1ed8bdba..368d36bfdd0b2 100644 --- a/compiler/rustc_lint/src/lints.rs +++ b/compiler/rustc_lint/src/lints.rs @@ -2,6 +2,7 @@ #![allow(rustc::untranslatable_diagnostic)] use std::num::NonZero; +use rustc_abi::ExternAbi; use rustc_errors::codes::*; use rustc_errors::{ Applicability, Diag, DiagArgValue, DiagMessage, DiagStyledString, ElidedLifetimeInPathSubdiag, @@ -2833,9 +2834,9 @@ pub(crate) struct PatternsInFnsWithoutBodySub { #[derive(LintDiagnostic)] #[diag(lint_extern_without_abi)] pub(crate) struct MissingAbi { - #[suggestion(code = "extern \"{default_abi}\"", applicability = "machine-applicable")] + #[suggestion(code = "extern {default_abi}", applicability = "machine-applicable")] pub span: Span, - pub default_abi: &'static str, + pub default_abi: ExternAbi, } #[derive(LintDiagnostic)] diff --git a/compiler/rustc_mir_transform/src/function_item_references.rs b/compiler/rustc_mir_transform/src/function_item_references.rs index 7e88925b2e1b6..73e47bb79f0bf 100644 --- a/compiler/rustc_mir_transform/src/function_item_references.rs +++ b/compiler/rustc_mir_transform/src/function_item_references.rs @@ -161,12 +161,7 @@ impl<'tcx> FunctionItemRefChecker<'_, 'tcx> { let unsafety = fn_sig.safety().prefix_str(); let abi = match fn_sig.abi() { ExternAbi::Rust => String::from(""), - other_abi => { - let mut s = String::from("extern \""); - s.push_str(other_abi.name()); - s.push_str("\" "); - s - } + other_abi => format!("extern {other_abi} "), }; let ident = self.tcx.item_ident(fn_id); let ty_params = fn_args.types().map(|ty| format!("{ty}")); diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 810d8aa820043..7e84127c93a67 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -1790,7 +1790,7 @@ supported_targets! { ("x86_64-unknown-l4re-uclibc", x86_64_unknown_l4re_uclibc), ("aarch64-unknown-redox", aarch64_unknown_redox), - ("i686-unknown-redox", i686_unknown_redox), + ("i586-unknown-redox", i586_unknown_redox), ("x86_64-unknown-redox", x86_64_unknown_redox), ("i386-apple-ios", i386_apple_ios), diff --git a/compiler/rustc_target/src/spec/targets/i686_unknown_redox.rs b/compiler/rustc_target/src/spec/targets/i586_unknown_redox.rs similarity index 94% rename from compiler/rustc_target/src/spec/targets/i686_unknown_redox.rs rename to compiler/rustc_target/src/spec/targets/i586_unknown_redox.rs index bfe52a330d30d..29ef8b883a118 100644 --- a/compiler/rustc_target/src/spec/targets/i686_unknown_redox.rs +++ b/compiler/rustc_target/src/spec/targets/i586_unknown_redox.rs @@ -10,7 +10,7 @@ pub(crate) fn target() -> Target { base.stack_probes = StackProbeType::Call; Target { - llvm_target: "i686-unknown-redox".into(), + llvm_target: "i586-unknown-redox".into(), metadata: crate::spec::TargetMetadata { description: None, tier: None, diff --git a/library/std/src/f128.rs b/library/std/src/f128.rs index 89612fa747551..cff0bf4ccf4c4 100644 --- a/library/std/src/f128.rs +++ b/library/std/src/f128.rs @@ -1,4 +1,4 @@ -//! Constants for the `f128` double-precision floating point type. +//! Constants for the `f128` quadruple-precision floating point type. //! //! *[See also the `f128` primitive type](primitive@f128).* //! diff --git a/library/std/src/f16.rs b/library/std/src/f16.rs index cc523c93b4de7..f6a553b1d0fa2 100644 --- a/library/std/src/f16.rs +++ b/library/std/src/f16.rs @@ -1,4 +1,4 @@ -//! Constants for the `f16` double-precision floating point type. +//! Constants for the `f16` half-precision floating point type. //! //! *[See also the `f16` primitive type](primitive@f16).* //! diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs index 03491e01e3005..a2375842bddef 100644 --- a/src/bootstrap/src/core/build_steps/compile.rs +++ b/src/bootstrap/src/core/build_steps/compile.rs @@ -191,7 +191,7 @@ impl Step for Std { // The LLD wrappers and `rust-lld` are self-contained linking components that can be // necessary to link the stdlib on some targets. We'll also need to copy these binaries to // the `stage0-sysroot` to ensure the linker is found when bootstrapping on such a target. - if compiler.stage == 0 && compiler.host == builder.config.build { + if compiler.stage == 0 && builder.is_builder_target(&compiler.host) { // We want to copy the host `bin` folder within the `rustlib` folder in the sysroot. let src_sysroot_bin = builder .rustc_snapshot_sysroot() @@ -2310,7 +2310,8 @@ pub fn strip_debug(builder: &Builder<'_>, target: TargetSelection, path: &Path) // FIXME: to make things simpler for now, limit this to the host and target where we know // `strip -g` is both available and will fix the issue, i.e. on a x64 linux host that is not // cross-compiling. Expand this to other appropriate targets in the future. - if target != "x86_64-unknown-linux-gnu" || target != builder.config.build || !path.exists() { + if target != "x86_64-unknown-linux-gnu" || !builder.is_builder_target(&target) || !path.exists() + { return; } diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index 18f920b85eee0..ae3761a97e50f 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -582,7 +582,7 @@ impl Step for DebuggerScripts { fn skip_host_target_lib(builder: &Builder<'_>, compiler: Compiler) -> bool { // The only true set of target libraries came from the build triple, so // let's reduce redundant work by only producing archives from that host. - if compiler.host != builder.config.build { + if !builder.is_builder_target(&compiler.host) { builder.info("\tskipping, not a build host"); true } else { @@ -637,7 +637,7 @@ fn copy_target_libs( for (path, dependency_type) in builder.read_stamp_file(stamp) { if dependency_type == DependencyType::TargetSelfContained { builder.copy_link(&path, &self_contained_dst.join(path.file_name().unwrap())); - } else if dependency_type == DependencyType::Target || builder.config.build == target { + } else if dependency_type == DependencyType::Target || builder.is_builder_target(&target) { builder.copy_link(&path, &dst.join(path.file_name().unwrap())); } } @@ -786,7 +786,7 @@ impl Step for Analysis { fn run(self, builder: &Builder<'_>) -> Option { let compiler = self.compiler; let target = self.target; - if compiler.host != builder.config.build { + if !builder.is_builder_target(&compiler.host) { return None; } diff --git a/src/bootstrap/src/core/build_steps/llvm.rs b/src/bootstrap/src/core/build_steps/llvm.rs index 9dd3505706213..ee60dbef7b98e 100644 --- a/src/bootstrap/src/core/build_steps/llvm.rs +++ b/src/bootstrap/src/core/build_steps/llvm.rs @@ -516,7 +516,7 @@ impl Step for Llvm { } // https://llvm.org/docs/HowToCrossCompileLLVM.html - if target != builder.config.build { + if !builder.is_builder_target(&target) { let LlvmResult { llvm_config, .. } = builder.ensure(Llvm { target: builder.config.build }); if !builder.config.dry_run() { @@ -661,7 +661,7 @@ fn configure_cmake( } cfg.target(&target.triple).host(&builder.config.build.triple); - if target != builder.config.build { + if !builder.is_builder_target(&target) { cfg.define("CMAKE_CROSSCOMPILING", "True"); if target.contains("netbsd") { @@ -1111,7 +1111,7 @@ impl Step for Lld { .define("LLVM_CMAKE_DIR", llvm_cmake_dir) .define("LLVM_INCLUDE_TESTS", "OFF"); - if target != builder.config.build { + if !builder.is_builder_target(&target) { // Use the host llvm-tblgen binary. cfg.define( "LLVM_TABLEGEN_EXE", diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index c452f4cd6ae0a..509875a469f1f 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -2742,7 +2742,7 @@ impl Step for Crate { cargo } else { // Also prepare a sysroot for the target. - if builder.config.build != target { + if !builder.is_builder_target(&target) { builder.ensure(compile::Std::new(compiler, target).force_recompile(true)); builder.ensure(RemoteCopyLibs { compiler, target }); } diff --git a/src/bootstrap/src/core/builder/tests.rs b/src/bootstrap/src/core/builder/tests.rs index 994975ed5a8b4..a0be474ca3e39 100644 --- a/src/bootstrap/src/core/builder/tests.rs +++ b/src/bootstrap/src/core/builder/tests.rs @@ -1065,3 +1065,19 @@ fn test_prebuilt_llvm_config_path_resolution() { .join(exe("llvm-config", builder.config.build)); assert_eq!(expected, actual); } + +#[test] +fn test_is_builder_target() { + let target1 = TargetSelection::from_user(TEST_TRIPLE_1); + let target2 = TargetSelection::from_user(TEST_TRIPLE_2); + + for (target1, target2) in [(target1, target2), (target2, target1)] { + let mut config = configure("build", &[], &[]); + config.build = target1; + let build = Build::new(config); + let builder = Builder::new(&build); + + assert!(builder.is_builder_target(&target1)); + assert!(!builder.is_builder_target(&target2)); + } +} diff --git a/src/bootstrap/src/core/sanity.rs b/src/bootstrap/src/core/sanity.rs index 6c8cda18548ef..9e4a0816e0d48 100644 --- a/src/bootstrap/src/core/sanity.rs +++ b/src/bootstrap/src/core/sanity.rs @@ -329,7 +329,7 @@ than building it. if target.contains("musl") && !target.contains("unikraft") { // If this is a native target (host is also musl) and no musl-root is given, // fall back to the system toolchain in /usr before giving up - if build.musl_root(*target).is_none() && build.config.build == *target { + if build.musl_root(*target).is_none() && build.is_builder_target(target) { let target = build.config.target_config.entry(*target).or_default(); target.musl_root = Some("/usr".into()); } diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs index e564a4b975148..665ab117002e0 100644 --- a/src/bootstrap/src/lib.rs +++ b/src/bootstrap/src/lib.rs @@ -739,7 +739,7 @@ impl Build { /// Note that if LLVM is configured externally then the directory returned /// will likely be empty. fn llvm_out(&self, target: TargetSelection) -> PathBuf { - if self.config.llvm_from_ci && self.config.build == target { + if self.config.llvm_from_ci && self.is_builder_target(&target) { self.config.ci_llvm_root() } else { self.out.join(target).join("llvm") @@ -789,7 +789,7 @@ impl Build { fn is_system_llvm(&self, target: TargetSelection) -> bool { match self.config.target_config.get(&target) { Some(Target { llvm_config: Some(_), .. }) => { - let ci_llvm = self.config.llvm_from_ci && target == self.config.build; + let ci_llvm = self.config.llvm_from_ci && self.is_builder_target(&target); !ci_llvm } // We're building from the in-tree src/llvm-project sources. @@ -1274,7 +1274,7 @@ Executed at: {executed_at}"#, // need to use CXX compiler as linker to resolve the exception functions // that are only existed in CXX libraries Some(self.cxx.borrow()[&target].path().into()) - } else if target != self.config.build + } else if !self.is_builder_target(&target) && helpers::use_host_linker(target) && !target.is_msvc() { @@ -1925,6 +1925,11 @@ to download LLVM rather than building it. stream.reset().unwrap(); result } + + /// Checks if the given target is the same as the builder target. + fn is_builder_target(&self, target: &TargetSelection) -> bool { + &self.config.build == target + } } #[cfg(unix)] diff --git a/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml b/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml index 615927d55e597..dc5395a19dd03 100644 --- a/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml +++ b/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml @@ -3,8 +3,8 @@ name: rustc-pull on: workflow_dispatch: schedule: - # Run at 04:00 UTC every Monday - - cron: '0 4 * * 1' + # Run at 04:00 UTC every Monday and Thursday + - cron: '0 4 * * 1,4' jobs: pull: @@ -34,8 +34,25 @@ jobs: git config --global user.name 'The rustc-dev-guide Cronjob Bot' git config --global user.email 'github-actions@github.com' - name: Perform rustc-pull - run: cargo run --manifest-path josh-sync/Cargo.toml -- rustc-pull + id: rustc-pull + # Turn off -e to disable early exit + shell: bash {0} + run: | + cargo run --manifest-path josh-sync/Cargo.toml -- rustc-pull + exitcode=$? + + # If no pull was performed, we want to mark this job as successful, + # but we do not want to perform the follow-up steps. + if [ $exitcode -eq 0 ]; then + echo "pull_result=pull-finished" >> $GITHUB_OUTPUT + elif [ $exitcode -eq 2 ]; then + echo "pull_result=skipped" >> $GITHUB_OUTPUT + exitcode=0 + fi + + exit ${exitcode} - name: Push changes to a branch + if: ${{ steps.rustc-pull.outputs.pull_result == 'pull-finished' }} run: | # Update a sticky branch that is used only for rustc pulls BRANCH="rustc-pull" @@ -43,6 +60,9 @@ jobs: git push -u origin $BRANCH --force - name: Create pull request id: update-pr + if: ${{ steps.rustc-pull.outputs.pull_result == 'pull-finished' }} + env: + GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} run: | # Check if an open pull request for an rustc pull update already exists # If it does, the previous push has just updated it @@ -54,26 +74,35 @@ jobs: echo "pr_url=$PR_URL" >> $GITHUB_OUTPUT else PR_URL=`gh pr list --author github-actions[bot] --state open -q 'map(select(.title=="Rustc pull update")) | .[0].url' --json url,title` + echo "Updating pull request ${PR_URL}" echo "pr_url=$PR_URL" >> $GITHUB_OUTPUT fi - env: - GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} send-zulip-message: needs: [pull] if: ${{ !cancelled() }} runs-on: ubuntu-latest steps: + - uses: actions/checkout@v4 - name: Compute message - id: message + id: create-message + env: + GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} run: | - if [ "${{ needs.pull.result }}" == "failure" ]; - then + if [ "${{ needs.pull.result }}" == "failure" ]; then WORKFLOW_URL="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}" echo "message=Rustc pull sync failed. Check out the [workflow URL]($WORKFLOW_URL)." >> $GITHUB_OUTPUT else - echo "message=Rustc pull sync succeeded. Check out the [PR](${{ needs.pull.outputs.pr_url }})." >> $GITHUB_OUTPUT + CREATED_AT=`gh pr list --author github-actions[bot] --state open -q 'map(select(.title=="Rustc pull update")) | .[0].createdAt' --json createdAt,title` + PR_URL=`gh pr list --author github-actions[bot] --state open -q 'map(select(.title=="Rustc pull update")) | .[0].url' --json url,title` + week_ago=$(date +%F -d '7 days ago') + + # If there is an open PR that is at least a week old, post a message about it + if [[ -n $DATE_GH && $DATE_GH < $week_ago ]]; then + echo "message=A PR with a Rustc pull has been opened for more a week. Check out the [PR](${PR_URL})." >> $GITHUB_OUTPUT + fi fi - name: Send a Zulip message about updated PR + if: ${{ steps.create-message.outputs.message != '' }} uses: zulip/github-actions-zulip/send-message@e4c8f27c732ba9bd98ac6be0583096dea82feea5 with: api-key: ${{ secrets.ZULIP_API_TOKEN }} diff --git a/src/doc/rustc-dev-guide/josh-sync/src/main.rs b/src/doc/rustc-dev-guide/josh-sync/src/main.rs index 84613ad86890e..175f016f73907 100644 --- a/src/doc/rustc-dev-guide/josh-sync/src/main.rs +++ b/src/doc/rustc-dev-guide/josh-sync/src/main.rs @@ -1,5 +1,5 @@ use clap::Parser; -use crate::sync::GitSync; +use crate::sync::{GitSync, RustcPullError}; mod sync; @@ -22,7 +22,18 @@ fn main() -> anyhow::Result<()> { let sync = GitSync::from_current_dir()?; match args { Args::RustcPull => { - sync.rustc_pull(None)?; + if let Err(error) = sync.rustc_pull(None) { + match error { + RustcPullError::NothingToPull => { + eprintln!("Nothing to pull"); + std::process::exit(2); + } + RustcPullError::PullFailed(error) => { + eprintln!("Pull failure: {error:?}"); + std::process::exit(1); + } + } + } } Args::RustcPush { github_username, branch } => { sync.rustc_push(github_username, branch)?; diff --git a/src/doc/rustc-dev-guide/josh-sync/src/sync.rs b/src/doc/rustc-dev-guide/josh-sync/src/sync.rs index eff80b1091d3b..cd64be6367032 100644 --- a/src/doc/rustc-dev-guide/josh-sync/src/sync.rs +++ b/src/doc/rustc-dev-guide/josh-sync/src/sync.rs @@ -11,6 +11,19 @@ const JOSH_FILTER: &str = ":/src/doc/rustc-dev-guide"; const JOSH_PORT: u16 = 42042; const UPSTREAM_REPO: &str = "rust-lang/rust"; +pub enum RustcPullError { + /// No changes are available to be pulled. + NothingToPull, + /// A rustc-pull has failed, probably a git operation error has occurred. + PullFailed(anyhow::Error) +} + +impl From for RustcPullError where E: Into { + fn from(error: E) -> Self { + Self::PullFailed(error.into()) + } +} + pub struct GitSync { dir: PathBuf, } @@ -24,7 +37,7 @@ impl GitSync { }) } - pub fn rustc_pull(&self, commit: Option) -> anyhow::Result<()> { + pub fn rustc_pull(&self, commit: Option) -> Result<(), RustcPullError> { let sh = Shell::new()?; sh.change_dir(&self.dir); let commit = commit.map(Ok).unwrap_or_else(|| { @@ -38,7 +51,7 @@ impl GitSync { })?; // Make sure the repo is clean. if cmd!(sh, "git status --untracked-files=no --porcelain").read()?.is_empty().not() { - bail!("working directory must be clean before performing rustc pull"); + return Err(anyhow::anyhow!("working directory must be clean before performing rustc pull").into()); } // Make sure josh is running. let josh = Self::start_josh()?; @@ -47,7 +60,7 @@ impl GitSync { let previous_base_commit = sh.read_file("rust-version")?.trim().to_string(); if previous_base_commit == commit { - return Err(anyhow::anyhow!("No changes since last pull")); + return Err(RustcPullError::NothingToPull); } // Update rust-version file. As a separate commit, since making it part of @@ -94,12 +107,13 @@ impl GitSync { cmd!(sh, "git reset --hard HEAD^") .run() .expect("FAILED to clean up after creating the preparation commit"); - return Err(anyhow::anyhow!("No merge was performed, nothing to pull. Rolled back the preparation commit.")); + eprintln!("No merge was performed, no changes to pull were found. Rolled back the preparation commit."); + return Err(RustcPullError::NothingToPull); } // Check that the number of roots did not increase. if num_roots()? != num_roots_before { - bail!("Josh created a new root commit. This is probably not the history you want."); + return Err(anyhow::anyhow!("Josh created a new root commit. This is probably not the history you want.").into()); } drop(josh); diff --git a/src/doc/rustc-dev-guide/rust-version b/src/doc/rustc-dev-guide/rust-version index 183d26b293842..78e9ecdf174be 100644 --- a/src/doc/rustc-dev-guide/rust-version +++ b/src/doc/rustc-dev-guide/rust-version @@ -1 +1 @@ -66d6064f9eb888018775e08f84747ee6f39ba28e +124cc92199ffa924f6b4c7cc819a85b65e0c3984 diff --git a/src/doc/rustc-dev-guide/src/appendix/bibliography.md b/src/doc/rustc-dev-guide/src/appendix/bibliography.md index 8f6810cbcaeac..93426b645a61e 100644 --- a/src/doc/rustc-dev-guide/src/appendix/bibliography.md +++ b/src/doc/rustc-dev-guide/src/appendix/bibliography.md @@ -82,7 +82,7 @@ Rust, as well as publications about Rust. * [Ownership is Theft: Experiences Building an Embedded OS in Rust - Amit Levy, et. al.](https://amitlevy.com/papers/tock-plos2015.pdf) * [You can't spell trust without Rust](https://faultlore.com/blah/papers/thesis.pdf). Aria Beingessner's master's thesis. * [Rust-Bio: a fast and safe bioinformatics library](https://rust-bio.github.io/). Johannes Köster -* [Safe, Correct, and Fast Low-Level Networking](https://octarineparrot.com/assets/msci_paper.pdf). Robert Clipsham's master's thesis. +* [Safe, Correct, and Fast Low-Level Networking](https://csperkins.org/research/thesis-msci-clipsham.pdf). Robert Clipsham's master's thesis. * [Formalizing Rust traits](https://open.library.ubc.ca/cIRcle/collections/ubctheses/24/items/1.0220521). Jonatan Milewski's master's thesis. * [Rust as a Language for High Performance GC Implementation](https://dl.acm.org/doi/pdf/10.1145/3241624.2926707) * [Simple Verification of Rust Programs via Functional Purification](https://github.com/Kha/electrolysis). Sebastian Ullrich's master's thesis. diff --git a/src/doc/rustc-dev-guide/src/building/suggested.md b/src/doc/rustc-dev-guide/src/building/suggested.md index bf5ffbc00afda..2c6c3fe1df84b 100644 --- a/src/doc/rustc-dev-guide/src/building/suggested.md +++ b/src/doc/rustc-dev-guide/src/building/suggested.md @@ -135,24 +135,24 @@ and follow the same instructions as above. ### Emacs Emacs provides support for rust-analyzer with project-local configuration -through [Eglot](https://www.gnu.org/software/emacs/manual/html_node/eglot/). +through [Eglot](https://www.gnu.org/software/emacs/manual/html_node/eglot/). Steps for setting up Eglot with rust-analyzer can be [found -here](https://rust-analyzer.github.io/manual.html#eglot). +here](https://rust-analyzer.github.io/manual.html#eglot). Having set up Emacs & Eglot for Rust development in general, you can run `./x setup editor` and select `emacs`, which will prompt you to create `.dir-locals.el` with the recommended configuration for Eglot. -The recommended settings live at [`src/etc/rust_analyzer_eglot.el`]. +The recommended settings live at [`src/etc/rust_analyzer_eglot.el`]. For more information on project-specific Eglot configuration, consult [the manual](https://www.gnu.org/software/emacs/manual/html_node/eglot/Project_002dspecific-configuration.html). ### Helix -Helix comes with built-in LSP and rust-analyzer support. +Helix comes with built-in LSP and rust-analyzer support. It can be configured through `languages.toml`, as described -[here](https://docs.helix-editor.com/languages.html). +[here](https://docs.helix-editor.com/languages.html). You can run `./x setup editor` and select `helix`, which will prompt you to create `languages.toml` with the recommended configuration for Helix. The -recommended settings live at [`src/etc/rust_analyzer_helix.toml`]. +recommended settings live at [`src/etc/rust_analyzer_helix.toml`]. ## Check, check, and check again @@ -181,7 +181,7 @@ example, running `tidy` and `linkchecker` is useful when editing Markdown files, whereas UI tests are much less likely to be helpful. While `x suggest` is a useful tool, it does not guarantee perfect coverage (just as PR CI isn't a substitute for bors). See the [dedicated chapter](../tests/suggest-tests.md) for -more information and contribution instructions. +more information and contribution instructions. Please note that `x suggest` is in a beta state currently and the tests that it will suggest are limited. @@ -332,29 +332,22 @@ git worktree add -b my-feature ../rust2 master You can then use that rust2 folder as a separate workspace for modifying and building `rustc`! -## Using nix-shell +## Working with nix -If you're using nix, you can use the following nix-shell to work on Rust: +Several nix configurations are defined in `src/tools/nix-dev-shell`. -```nix -{ pkgs ? import {} }: -pkgs.mkShell { - name = "rustc"; - nativeBuildInputs = with pkgs; [ - binutils cmake ninja pkg-config python3 git curl cacert patchelf nix - ]; - buildInputs = with pkgs; [ - openssl glibc.out glibc.static - ]; - # Avoid creating text files for ICEs. - RUSTC_ICE = "0"; - # Provide `libstdc++.so.6` for the self-contained lld. - LD_LIBRARY_PATH = "${with pkgs; lib.makeLibraryPath [ - stdenv.cc.cc.lib - ]}"; -} +If you're using direnv, you can create a symbol link to `src/tools/nix-dev-shell/envrc-flake` or `src/tools/nix-dev-shell/envrc-shell` + +```bash +ln -s ./src/tools/nix-dev-shell/envrc-flake ./.envrc # Use flake +``` +or +```bash +ln -s ./src/tools/nix-dev-shell/envrc-shell ./.envrc # Use nix-shell ``` +### Note + Note that when using nix on a not-NixOS distribution, it may be necessary to set **`patch-binaries-for-nix = true` in `config.toml`**. Bootstrap tries to detect whether it's running in nix and enable patching automatically, but this diff --git a/src/doc/rustc-dev-guide/src/diagnostics.md b/src/doc/rustc-dev-guide/src/diagnostics.md index 8f389640d271f..972309b5cd343 100644 --- a/src/doc/rustc-dev-guide/src/diagnostics.md +++ b/src/doc/rustc-dev-guide/src/diagnostics.md @@ -601,8 +601,8 @@ The trait implementation allows you to check certain syntactic constructs as the linter walks the AST. You can then choose to emit lints in a very similar way to compile errors. -You also declare the metadata of a particular lint via the `declare_lint!` -macro. [This macro](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lint_defs/macro.declare_lint.html) includes the name, the default level, a short description, and some +You also declare the metadata of a particular lint via the [`declare_lint!`] +macro. This macro includes the name, the default level, a short description, and some more details. Note that the lint and the lint pass must be registered with the compiler. @@ -671,6 +671,8 @@ example-use-loop = denote infinite loops with `loop {"{"} ... {"}"}` .suggestion = use `loop` ``` +[`declare_lint!`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lint_defs/macro.declare_lint.html + ### Edition-gated lints Sometimes we want to change the behavior of a lint in a new edition. To do this, diff --git a/src/doc/rustc-dev-guide/src/getting-started.md b/src/doc/rustc-dev-guide/src/getting-started.md index 4cb1d0b31ebd2..8bf14bef2a033 100644 --- a/src/doc/rustc-dev-guide/src/getting-started.md +++ b/src/doc/rustc-dev-guide/src/getting-started.md @@ -101,7 +101,6 @@ it's easy to pick up work without a large time commitment: - [Rustdoc Askama Migration](https://github.com/rust-lang/rust/issues/108868) - [Diagnostic Translation](https://github.com/rust-lang/rust/issues/100717) - [Move UI tests to subdirectories](https://github.com/rust-lang/rust/issues/73494) -- [Port run-make tests from Make to Rust](https://github.com/rust-lang/rust/issues/121876) If you find more recurring work, please feel free to add it here! diff --git a/src/doc/rustc-dev-guide/src/param_env/param_env_acquisition.md b/src/doc/rustc-dev-guide/src/param_env/param_env_acquisition.md index 391e562910fa7..f6cff2d6c63cc 100644 --- a/src/doc/rustc-dev-guide/src/param_env/param_env_acquisition.md +++ b/src/doc/rustc-dev-guide/src/param_env/param_env_acquisition.md @@ -21,7 +21,7 @@ Creating an env from an arbitrary set of where clauses is usually unnecessary an Creating an empty environment via `ParamEnv::empty` is almost always wrong. There are very few places where we actually know that the environment should be empty. One of the only places where we do actually know this is after monomorphization, however the `ParamEnv` there should be constructed via `ParamEnv::reveal_all` instead as at this point we should be able to determine the hidden type of opaque types. Codegen/Post-mono is one of the only places that should be using `ParamEnv::reveal_all`. -An additional piece of complexity here is specifying the [`Reveal`][reveal] (see linked docs for explanation of what reveal does) used for the `ParamEnv`. When constructing a param env using the `param_env` query it will have `Reveal::UserFacing`, if `Reveal::All` is desired then the [`tcx.param_env_reveal_all_normalized`][env_reveal_all_normalized] query can be used instead. +An additional piece of complexity here is specifying the `Reveal` (see linked docs for explanation of what reveal does) used for the `ParamEnv`. When constructing a param env using the `param_env` query it will have `Reveal::UserFacing`, if `Reveal::All` is desired then the [`tcx.param_env_reveal_all_normalized`][env_reveal_all_normalized] query can be used instead. The `ParamEnv` type has a method [`ParamEnv::with_reveal_all_normalized`][with_reveal_all] which converts an existing `ParamEnv` into one with `Reveal::All` specified. Where possible the previously mentioned query should be preferred as it is more efficient. @@ -38,7 +38,6 @@ The `ParamEnv` type has a method [`ParamEnv::with_reveal_all_normalized`][with_r [with_reveal_all]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/struct.ParamEnv.html#method.with_reveal_all_normalized [env_reveal_all]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/struct.ParamEnv.html#method.reveal_all [env_empty]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/struct.ParamEnv.html#method.empty -[reveal]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_infer/traits/enum.Reveal.html [pe]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/struct.ParamEnv.html [param_env_query]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir_typeck/fn_ctxt/struct.FnCtxt.html#structfield.param_env [method_pred_entailment]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir_analysis/check/compare_impl_item/fn.compare_method_predicate_entailment.html diff --git a/src/doc/rustc-dev-guide/src/param_env/param_env_what_is_it.md b/src/doc/rustc-dev-guide/src/param_env/param_env_what_is_it.md index ca09518d99f4b..5c2f4d594052e 100644 --- a/src/doc/rustc-dev-guide/src/param_env/param_env_what_is_it.md +++ b/src/doc/rustc-dev-guide/src/param_env/param_env_what_is_it.md @@ -3,7 +3,7 @@ The type system relies on information in the environment in order for it to function correctly. This information is stored in the [`ParamEnv`][pe] type and it is important to use the correct `ParamEnv` when interacting with the type system. -The information represented by `ParamEnv` is a list of in-scope where-clauses, and a [`Reveal`][reveal] (see linked docs for more information). A `ParamEnv` typically corresponds to a specific item's where clauses, some clauses are not explicitly written bounds and instead are implicitly added in [`predicates_of`][predicates_of] such as `ConstArgHasType` or some implied bounds. +The information represented by `ParamEnv` is a list of in-scope where-clauses, and a `Reveal` (see linked docs for more information). A `ParamEnv` typically corresponds to a specific item's where clauses, some clauses are not explicitly written bounds and instead are implicitly added in [`predicates_of`][predicates_of] such as `ConstArgHasType` or some implied bounds. A `ParamEnv` can also be created with arbitrary data that is not derived from a specific item such as in [`compare_method_predicate_entailment`][method_pred_entailment] which creates a hybrid `ParamEnv` consisting of the impl's where clauses and the trait definition's function's where clauses. In most cases `ParamEnv`s are initially created via the [`param_env` query][query] which returns a `ParamEnv` derived from the provided item's where clauses. @@ -57,4 +57,3 @@ It's very important to use the correct `ParamEnv` when interacting with the type [method_pred_entailment]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir_analysis/check/compare_impl_item/fn.compare_method_predicate_entailment.html [pe]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/struct.ParamEnv.html [query]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/context/struct.TyCtxt.html#method.param_env -[reveal]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_infer/traits/enum.Reveal.html \ No newline at end of file diff --git a/src/doc/rustc-dev-guide/src/rustdoc-internals/search.md b/src/doc/rustc-dev-guide/src/rustdoc-internals/search.md index ddf8ec405f81d..3506431118baf 100644 --- a/src/doc/rustc-dev-guide/src/rustdoc-internals/search.md +++ b/src/doc/rustc-dev-guide/src/rustdoc-internals/search.md @@ -46,8 +46,8 @@ For space savings, it's also written without newlines or spaces. ] ``` -[`src/librustdoc/html/static/js/externs.js`] -defines an actual schema in a Closure `@typedef`. +[`src/librustdoc/html/static/js/rustdoc.d.ts`] +defines an actual schema in a TypeScript `type`. | Key | Name | Description | | --- | -------------------- | ------------ | @@ -68,7 +68,7 @@ with a free function called `function_name` and a struct called `Data`, with the type signature `Data, i32 -> str`, and an alias, `get_name`, that equivalently refers to `function_name`. -[`src/librustdoc/html/static/js/externs.js`]: https://github.com/rust-lang/rust/blob/79b710c13968a1a48d94431d024d2b1677940866/src/librustdoc/html/static/js/externs.js#L204-L258 +[`src/librustdoc/html/static/js/rustdoc.d.ts`]: https://github.com/rust-lang/rust/blob/2f92f050e83bf3312ce4ba73c31fe843ad3cbc60/src/librustdoc/html/static/js/rustdoc.d.ts#L344-L390 The search index needs to fit the needs of the `rustdoc` compiler, the `search.js` frontend, @@ -469,7 +469,7 @@ want the libs team to be able to add new items without causing unrelated tests to fail, but standalone tests will use it more often. The `ResultsTable` and `ParsedQuery` types are specified in -[`externs.js`](https://github.com/rust-lang/rust/blob/master/src/librustdoc/html/static/js/externs.js). +[`rustdoc.d.ts`](https://github.com/rust-lang/rust/blob/master/src/librustdoc/html/static/js/rustdoc.d.ts). For example, imagine we needed to fix a bug where a function named `constructor` couldn't be found. To do this, write two files: diff --git a/src/doc/rustc-dev-guide/src/tests/ci.md b/src/doc/rustc-dev-guide/src/tests/ci.md index 9dde407895e24..a4b22392f1976 100644 --- a/src/doc/rustc-dev-guide/src/tests/ci.md +++ b/src/doc/rustc-dev-guide/src/tests/ci.md @@ -322,7 +322,7 @@ Our CI workflow uses various caching mechanisms, mainly for two things: ### Docker images caching The Docker images we use to run most of the Linux-based builders take a *long* -time to fully build. To speed up the build, we cache it using [Docker registry +time to fully build. To speed up the build, we cache them using [Docker registry caching], with the intermediate artifacts being stored on [ghcr.io]. We also push the built Docker images to ghcr, so that they can be reused by other tools (rustup) or by developers running the Docker build locally (to speed up their @@ -334,6 +334,13 @@ override the cache for the others. Instead, we store the images under different tags, identifying them with a custom hash made from the contents of all the Dockerfiles and related scripts. +The CI calculates a hash key, so that the cache of a Docker image is +invalidated if one of the following changes: + +- Dockerfile +- Files copied into the Docker image in the Dockerfile +- The architecture of the GitHub runner (x86 or ARM) + [ghcr.io]: https://github.com/rust-lang-ci/rust/pkgs/container/rust-ci [Docker registry caching]: https://docs.docker.com/build/cache/backends/registry/ @@ -341,9 +348,18 @@ Dockerfiles and related scripts. We build some C/C++ stuff in various CI jobs, and we rely on [sccache] to cache the intermediate LLVM artifacts. Sccache is a distributed ccache developed by -Mozilla, which can use an object storage bucket as the storage backend. In our -case, the artefacts are uploaded to an S3 bucket that we control -(`rust-lang-ci-sccache2`). +Mozilla, which can use an object storage bucket as the storage backend. + +With sccache there's no need to calculate the hash key ourselves. Sccache +invalidates the cache automatically when it detects changes to relevant inputs, +such as the source code, the version of the compiler, and important environment +variables. +So we just pass the sccache wrapper on top of cargo and sccache does the rest. + +We store the persistent artifacts on the S3 bucket `rust-lang-ci-sccache2`. So +when the CI runs, if sccache sees that LLVM is being compiled with the same C/C++ +compiler and the LLVM source code is the same, sccache retrieves the individual +compiled translation units from S3. [sccache]: https://github.com/mozilla/sccache diff --git a/src/doc/rustc-dev-guide/src/tests/docker.md b/src/doc/rustc-dev-guide/src/tests/docker.md index a0aa8bd3e77b6..2ca08d42130a5 100644 --- a/src/doc/rustc-dev-guide/src/tests/docker.md +++ b/src/doc/rustc-dev-guide/src/tests/docker.md @@ -1,36 +1,44 @@ # Testing with Docker -The Rust tree includes [Docker] image definitions for the platforms used on -GitHub Actions in [`src/ci/docker`]. -The script [`src/ci/docker/run.sh`] is used to build the Docker image, run it, -build Rust within the image, and run the tests. - -You can run these images on your local development machine. This can be -helpful to test environments different from your local system. First you will +The [`src/ci/docker`] directory includes [Docker] image definitions for Linux-based jobs executed on GitHub Actions (non-Linux jobs run outside Docker). You can run these jobs on your local development machine, which can be +helpful to test environments different from your local system. You will need to install Docker on a Linux, Windows, or macOS system (typically Linux will be much faster than Windows or macOS because the latter use virtual -machines to emulate a Linux environment). To enter interactive mode which will -start a bash shell in the container, run `src/ci/docker/run.sh --dev ` -where `` is one of the directory names in `src/ci/docker` (for example -`x86_64-gnu` is a fairly standard Ubuntu environment). - -The docker script will mount your local Rust source tree in read-only mode, -and an `obj` directory in read-write mode. All of the compiler artifacts will -be stored in the `obj` directory. The shell will start out in the `obj` -directory. From there, you can run `../src/ci/run.sh` which will run the build -as defined by the image. - -Alternatively, you can run individual commands to do specific tasks. For -example, you can run `../x test tests/ui` to just run UI tests. -Note that there is some configuration in the [`src/ci/run.sh`] script that you -may need to recreate. Particularly, set `submodules = false` in your -`config.toml` so that it doesn't attempt to modify the read-only directory. +machines to emulate a Linux environment). + +Jobs running in CI are configured through a set of bash scripts, and it is not always trivial to reproduce their behavior locally. If you want to run a CI job locally in the simplest way possible, you can use a provided helper Python script that tries to replicate what happens on CI as closely as possible: + +```bash +python3 src/ci/github-actions/ci.py run-local +# For example: +python3 src/ci/github-actions/ci.py run-local dist-x86_64-linux-alt +``` -Some additional notes about using the Docker images: +If the above script does not work for you, you would like to have more control of the Docker image execution, or you want to understand what exactly happens during Docker job execution, then continue reading below. +## The `run.sh` script +The [`src/ci/docker/run.sh`] script is used to build a specific Docker image, run it, +build Rust within the image, and either run tests or prepare a set of archives designed for distribution. The script will mount your local Rust source tree in read-only mode, and an `obj` directory in read-write mode. All the compiler artifacts will be stored in the `obj` directory. The shell will start out in the `obj`directory. From there, it will execute `../src/ci/run.sh` which starts the build as defined by the Docker image. + +You can run `src/ci/docker/run.sh ` directly. A few important notes regarding the `run.sh` script: +- When executed on CI, the script expects that all submodules are checked out. If some submodule that is accessed by the job is not available, the build will result in an error. You should thus make sure that you have all required submodules checked out locally. You can either do that manually through git, or set `submodules = true` in your `config.toml` and run a command such as `x build` to let bootstrap download the most important submodules (this might not be enough for the given CI job that you are trying to execute though). +- `` corresponds to a single directory located in one of the `src/ci/docker/host-*` directories. Note that image name does not necessarily correspond to a job name, as some jobs execute the same image, but with different environment variables or Docker build arguments (this is a part of the complexity that makes it difficult to run CI jobs locally). +- If you are executing a "dist" job (job beginning with `dist-`), you should set the `DEPLOY=1` environment variable. +- If you are executing an "alternative dist" job (job beginning with `dist-` and ending with `-alt`), you should set the `DEPLOY_ALT=1` environment variable. - Some of the std tests require IPv6 support. Docker on Linux seems to have it disabled by default. Run the commands in [`enable-docker-ipv6.sh`] to enable IPv6 before creating the container. This only needs to be done once. + +### Interactive mode + +Sometimes, it can be useful to build a specific Docker image, and then run custom commands inside it, so that you can experiment with how the given system behaves. You can do that using an interactive mode, which will +start a bash shell in the container, using `src/ci/docker/run.sh --dev `. + +When inside the Docker container, you can run individual commands to do specific tasks. For +example, you can run `../x test tests/ui` to just run UI tests. + +Some additional notes about using the interactive mode: + - The container will be deleted automatically when you exit the shell, however the build artifacts persist in the `obj` directory. If you are switching between different Docker images, the artifacts from previous environments @@ -45,15 +53,6 @@ Some additional notes about using the Docker images: containers. With the container name, run `docker exec -it /bin/bash` where `` is the container name like `4ba195e95cef`. -The approach described above is a relatively low-level interface for running the Docker images -directly. If you want to run a full CI Linux job locally with Docker, in a way that is as close to CI as possible, you can use the following command: - -```bash -python3 src/ci/github-actions/ci.py run-local -# For example: -python3 src/ci/github-actions/ci.py run-local dist-x86_64-linux-alt -``` - [Docker]: https://www.docker.com/ [`src/ci/docker`]: https://github.com/rust-lang/rust/tree/master/src/ci/docker [`src/ci/docker/run.sh`]: https://github.com/rust-lang/rust/blob/master/src/ci/docker/run.sh diff --git a/src/doc/rustc-dev-guide/src/traits/implied-bounds.md b/src/doc/rustc-dev-guide/src/traits/implied-bounds.md index 05693dcd5a18b..cdcb90d3e2edf 100644 --- a/src/doc/rustc-dev-guide/src/traits/implied-bounds.md +++ b/src/doc/rustc-dev-guide/src/traits/implied-bounds.md @@ -40,7 +40,7 @@ requirements of impls and functions as explicit predicates. ### using implicit implied bounds as assumptions These bounds are not added to the `ParamEnv` of the affected item itself. For lexical -region resolution they are added using [`fn OutlivesEnvironment::new`]. +region resolution they are added using [`fn OutlivesEnvironment::from_normalized_bounds`]. Similarly, during MIR borrowck we add them using [`fn UniversalRegionRelationsBuilder::add_implied_bounds`]. @@ -55,7 +55,7 @@ The assumed outlives constraints for implicit bounds are computed using the MIR borrowck adds the outlives constraints for both the normalized and unnormalized types, lexical region resolution [only uses the unnormalized types][notnorm]. -[`fn OutlivesEnvironment::new`]: TODO +[`fn OutlivesEnvironment::from_normalized_bounds`]: https://github.com/rust-lang/rust/blob/8239a37f9c0951a037cfc51763ea52a20e71e6bd/compiler/rustc_infer/src/infer/outlives/env.rs#L50-L55 [`fn UniversalRegionRelationsBuilder::add_implied_bounds`]: https://github.com/rust-lang/rust/blob/5b8bc568d28b2e922290c9a966b3231d0ce9398b/compiler/rustc_borrowck/src/type_check/free_region_relations.rs#L316 [mir]: https://github.com/rust-lang/rust/blob/91cae1dcdcf1a31bd8a92e4a63793d65cfe289bb/compiler/rustc_borrowck/src/type_check/free_region_relations.rs#L258-L332 [`fn assumed_wf_types`]: https://github.com/rust-lang/rust/blob/5b8bc568d28b2e922290c9a966b3231d0ce9398b/compiler/rustc_ty_utils/src/implied_bounds.rs#L21 diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index a086498fcbdce..28bb15952d0ae 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -311,12 +311,12 @@ target | std | host | notes [`i386-apple-ios`](platform-support/apple-ios.md) | ✓ | | 32-bit x86 iOS (Penryn) [^x86_32-floats-return-ABI] [`i586-pc-nto-qnx700`](platform-support/nto-qnx.md) | * | | 32-bit x86 QNX Neutrino 7.0 RTOS (Pentium 4) [^x86_32-floats-return-ABI] [`i586-unknown-netbsd`](platform-support/netbsd.md) | ✓ | | 32-bit x86 (original Pentium) [^x86_32-floats-x87] +[`i586-unknown-redox`](platform-support/redox.md) | ✓ | | 32-bit x86 Redox OS (PentiumPro) [^x86_32-floats-x87] [`i686-apple-darwin`](platform-support/apple-darwin.md) | ✓ | ✓ | 32-bit macOS (10.12+, Sierra+, Penryn) [^x86_32-floats-return-ABI] `i686-unknown-haiku` | ✓ | ✓ | 32-bit Haiku (Pentium 4) [^x86_32-floats-return-ABI] [`i686-unknown-hurd-gnu`](platform-support/hurd.md) | ✓ | ✓ | 32-bit GNU/Hurd (Pentium 4) [^x86_32-floats-return-ABI] [`i686-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | NetBSD/i386 (Pentium 4) [^x86_32-floats-return-ABI] [`i686-unknown-openbsd`](platform-support/openbsd.md) | ✓ | ✓ | 32-bit OpenBSD (Pentium 4) [^x86_32-floats-return-ABI] -[`i686-unknown-redox`](platform-support/redox.md) | ✓ | | i686 Redox OS (PentiumPro) [^x86_32-floats-x87] `i686-uwp-windows-gnu` | ✓ | | [^x86_32-floats-return-ABI] [`i686-uwp-windows-msvc`](platform-support/uwp-windows-msvc.md) | ✓ | | [^x86_32-floats-return-ABI] [`i686-win7-windows-gnu`](platform-support/win7-windows-gnu.md) | ✓ | | 32-bit Windows 7 support [^x86_32-floats-return-ABI] diff --git a/src/doc/rustc/src/platform-support/redox.md b/src/doc/rustc/src/platform-support/redox.md index 1b3321956ef7b..2bba92d504c46 100644 --- a/src/doc/rustc/src/platform-support/redox.md +++ b/src/doc/rustc/src/platform-support/redox.md @@ -9,7 +9,7 @@ Target triplets available so far: - `x86_64-unknown-redox` (tier 2) - `aarch64-unknown-redox` (tier 3) -- `i686-unknown-redox` (tier 3) +- `i586-unknown-redox` (tier 3) ## Target maintainers @@ -36,7 +36,7 @@ target = [ "", "x86_64-unknown-redox", "aarch64-unknown-redox", - "i686-unknown-redox", + "i586-unknown-redox", ] ``` diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs index b6a73602a322f..086a85aa616f6 100644 --- a/src/librustdoc/html/format.rs +++ b/src/librustdoc/html/format.rs @@ -37,113 +37,8 @@ use crate::html::render::Context; use crate::joined::Joined as _; use crate::passes::collect_intra_doc_links::UrlFragment; -pub(crate) trait Print { - fn print(self, buffer: &mut Buffer); -} - -impl Print for F -where - F: FnOnce(&mut Buffer), -{ - fn print(self, buffer: &mut Buffer) { - (self)(buffer) - } -} - -impl Print for String { - fn print(self, buffer: &mut Buffer) { - buffer.write_str(&self); - } -} - -impl Print for &'_ str { - fn print(self, buffer: &mut Buffer) { - buffer.write_str(self); - } -} - -#[derive(Debug, Clone)] -pub(crate) struct Buffer { - for_html: bool, - buffer: String, -} - -impl core::fmt::Write for Buffer { - #[inline] - fn write_str(&mut self, s: &str) -> fmt::Result { - self.buffer.write_str(s) - } - - #[inline] - fn write_char(&mut self, c: char) -> fmt::Result { - self.buffer.write_char(c) - } - - #[inline] - fn write_fmt(&mut self, args: fmt::Arguments<'_>) -> fmt::Result { - self.buffer.write_fmt(args) - } -} - -impl Buffer { - pub(crate) fn empty_from(v: &Buffer) -> Buffer { - Buffer { for_html: v.for_html, buffer: String::new() } - } - - pub(crate) fn html() -> Buffer { - Buffer { for_html: true, buffer: String::new() } - } - - pub(crate) fn new() -> Buffer { - Buffer { for_html: false, buffer: String::new() } - } - - pub(crate) fn is_empty(&self) -> bool { - self.buffer.is_empty() - } - - pub(crate) fn into_inner(self) -> String { - self.buffer - } - - pub(crate) fn push(&mut self, c: char) { - self.buffer.push(c); - } - - pub(crate) fn push_str(&mut self, s: &str) { - self.buffer.push_str(s); - } - - pub(crate) fn push_buffer(&mut self, other: Buffer) { - self.buffer.push_str(&other.buffer); - } - - // Intended for consumption by write! and writeln! (std::fmt) but without - // the fmt::Result return type imposed by fmt::Write (and avoiding the trait - // import). - pub(crate) fn write_str(&mut self, s: &str) { - self.buffer.push_str(s); - } - - // Intended for consumption by write! and writeln! (std::fmt) but without - // the fmt::Result return type imposed by fmt::Write (and avoiding the trait - // import). - pub(crate) fn write_fmt(&mut self, v: fmt::Arguments<'_>) { - self.buffer.write_fmt(v).unwrap(); - } - - pub(crate) fn to_display(mut self, t: T) -> String { - t.print(&mut self); - self.into_inner() - } - - pub(crate) fn reserve(&mut self, additional: usize) { - self.buffer.reserve(additional) - } - - pub(crate) fn len(&self) -> usize { - self.buffer.len() - } +pub(crate) fn write_str(s: &mut String, f: fmt::Arguments<'_>) { + s.write_fmt(f).unwrap(); } pub(crate) fn print_generic_bounds<'a, 'tcx: 'a>( @@ -772,7 +667,7 @@ pub(crate) fn link_tooltip(did: DefId, fragment: &Option, cx: &Cont else { return String::new(); }; - let mut buf = Buffer::new(); + let mut buf = String::new(); let fqp = if *shortty == ItemType::Primitive { // primitives are documented in a crate, but not actually part of it &fqp[fqp.len() - 1..] @@ -780,19 +675,19 @@ pub(crate) fn link_tooltip(did: DefId, fragment: &Option, cx: &Cont fqp }; if let &Some(UrlFragment::Item(id)) = fragment { - write!(buf, "{} ", cx.tcx().def_descr(id)); + write_str(&mut buf, format_args!("{} ", cx.tcx().def_descr(id))); for component in fqp { - write!(buf, "{component}::"); + write_str(&mut buf, format_args!("{component}::")); } - write!(buf, "{}", cx.tcx().item_name(id)); + write_str(&mut buf, format_args!("{}", cx.tcx().item_name(id))); } else if !fqp.is_empty() { let mut fqp_it = fqp.iter(); - write!(buf, "{shortty} {}", fqp_it.next().unwrap()); + write_str(&mut buf, format_args!("{shortty} {}", fqp_it.next().unwrap())); for component in fqp_it { - write!(buf, "::{component}"); + write_str(&mut buf, format_args!("::{component}")); } } - buf.into_inner() + buf } /// Used to render a [`clean::Path`]. diff --git a/src/librustdoc/html/highlight.rs b/src/librustdoc/html/highlight.rs index 8c91cae493103..75b038598dde9 100644 --- a/src/librustdoc/html/highlight.rs +++ b/src/librustdoc/html/highlight.rs @@ -14,7 +14,7 @@ use rustc_span::edition::Edition; use rustc_span::symbol::Symbol; use rustc_span::{BytePos, DUMMY_SP, Span}; -use super::format::{self, Buffer}; +use super::format::{self, write_str}; use crate::clean::PrimitiveType; use crate::html::escape::EscapeBodyText; use crate::html::render::{Context, LinkFromSrc}; @@ -48,7 +48,7 @@ pub(crate) enum Tooltip { /// Highlights `src` as an inline example, returning the HTML output. pub(crate) fn render_example_with_highlighting( src: &str, - out: &mut Buffer, + out: &mut String, tooltip: Tooltip, playground_button: Option<&str>, extra_classes: &[String], @@ -59,61 +59,69 @@ pub(crate) fn render_example_with_highlighting( } fn write_header( - out: &mut Buffer, + out: &mut String, class: &str, - extra_content: Option, + extra_content: Option<&str>, tooltip: Tooltip, extra_classes: &[String], ) { - write!( + write_str( out, - "
", - match tooltip { - Tooltip::Ignore => " ignore", - Tooltip::CompileFail => " compile_fail", - Tooltip::ShouldPanic => " should_panic", - Tooltip::Edition(_) => " edition", - Tooltip::None => "", - }, + format_args!( + "
", + match tooltip { + Tooltip::Ignore => " ignore", + Tooltip::CompileFail => " compile_fail", + Tooltip::ShouldPanic => " should_panic", + Tooltip::Edition(_) => " edition", + Tooltip::None => "", + } + ), ); if tooltip != Tooltip::None { let edition_code; - write!( + write_str( out, - "ⓘ", - match tooltip { - Tooltip::Ignore => "This example is not tested", - Tooltip::CompileFail => "This example deliberately fails to compile", - Tooltip::ShouldPanic => "This example panics", - Tooltip::Edition(edition) => { - edition_code = format!("This example runs with edition {edition}"); - &edition_code + format_args!( + "ⓘ", + match tooltip { + Tooltip::Ignore => "This example is not tested", + Tooltip::CompileFail => "This example deliberately fails to compile", + Tooltip::ShouldPanic => "This example panics", + Tooltip::Edition(edition) => { + edition_code = format!("This example runs with edition {edition}"); + &edition_code + } + Tooltip::None => unreachable!(), } - Tooltip::None => unreachable!(), - }, + ), ); } if let Some(extra) = extra_content { - out.push_buffer(extra); + out.push_str(&extra); } if class.is_empty() { - write!( + write_str( out, - "
",
-            if extra_classes.is_empty() { "" } else { " " },
-            extra_classes.join(" "),
+            format_args!(
+                "
",
+                if extra_classes.is_empty() { "" } else { " " },
+                extra_classes.join(" ")
+            ),
         );
     } else {
-        write!(
+        write_str(
             out,
-            "
",
-            if extra_classes.is_empty() { "" } else { " " },
-            extra_classes.join(" "),
+            format_args!(
+                "
",
+                if extra_classes.is_empty() { "" } else { " " },
+                extra_classes.join(" ")
+            ),
         );
     }
-    write!(out, "");
+    write_str(out, format_args!(""));
 }
 
 /// Check if two `Class` can be merged together. In the following rules, "unclassified" means `None`
@@ -322,8 +330,8 @@ pub(super) fn write_code(
     });
 }
 
-fn write_footer(out: &mut Buffer, playground_button: Option<&str>) {
-    writeln!(out, "
{}
", playground_button.unwrap_or_default()); +fn write_footer(out: &mut String, playground_button: Option<&str>) { + write_str(out, format_args_nl!("{}
", playground_button.unwrap_or_default())); } /// How a span of text is classified. Mostly corresponds to token kinds. diff --git a/src/librustdoc/html/highlight/tests.rs b/src/librustdoc/html/highlight/tests.rs index fccbb98f80ff3..5b7aabb161ff7 100644 --- a/src/librustdoc/html/highlight/tests.rs +++ b/src/librustdoc/html/highlight/tests.rs @@ -3,7 +3,6 @@ use rustc_data_structures::fx::FxIndexMap; use rustc_span::create_default_session_globals_then; use super::{DecorationInfo, write_code}; -use crate::html::format::Buffer; const STYLE: &str = r#"