From 68227a3777c7bf8ba6a69e2b8871d224504d1c31 Mon Sep 17 00:00:00 2001 From: beetrees Date: Sat, 17 Aug 2024 05:32:09 +0100 Subject: Pass end position of span through inline ASM cookie --- compiler/rustc_codegen_llvm/src/asm.rs | 21 ++++++++++---------- compiler/rustc_codegen_llvm/src/back/write.rs | 23 ++++++++++++++++------ compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs | 2 +- compiler/rustc_codegen_llvm/src/llvm/ffi.rs | 2 +- 4 files changed, 29 insertions(+), 19 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/asm.rs b/compiler/rustc_codegen_llvm/src/asm.rs index 6ee80c08d4a..aee6d20ad79 100644 --- a/compiler/rustc_codegen_llvm/src/asm.rs +++ b/compiler/rustc_codegen_llvm/src/asm.rs @@ -504,14 +504,13 @@ pub(crate) fn inline_asm_call<'ll>( let key = "srcloc"; let kind = llvm::LLVMGetMDKindIDInContext( bx.llcx, - key.as_ptr() as *const c_char, + key.as_ptr().cast::(), key.len() as c_uint, ); - // srcloc contains one integer for each line of assembly code. - // Unfortunately this isn't enough to encode a full span so instead - // we just encode the start position of each line. - // FIXME: Figure out a way to pass the entire line spans. + // `srcloc` contains one 64-bit integer for each line of assembly code, + // where the lower 32 bits hold the lo byte position and the upper 32 bits + // hold the hi byte position. let mut srcloc = vec![]; if dia == llvm::AsmDialect::Intel && line_spans.len() > 1 { // LLVM inserts an extra line to add the ".intel_syntax", so add @@ -521,13 +520,13 @@ pub(crate) fn inline_asm_call<'ll>( // due to the asm template string coming from a macro. LLVM will // default to the first srcloc for lines that don't have an // associated srcloc. - srcloc.push(llvm::LLVMValueAsMetadata(bx.const_i32(0))); + srcloc.push(llvm::LLVMValueAsMetadata(bx.const_u64(0))); } - srcloc.extend( - line_spans - .iter() - .map(|span| llvm::LLVMValueAsMetadata(bx.const_i32(span.lo().to_u32() as i32))), - ); + srcloc.extend(line_spans.iter().map(|span| { + llvm::LLVMValueAsMetadata(bx.const_u64( + u64::from(span.lo().to_u32()) | (u64::from(span.hi().to_u32()) << 32), + )) + })); let md = llvm::LLVMMDNodeInContext2(bx.llcx, srcloc.as_ptr(), srcloc.len()); let md = llvm::LLVMMetadataAsValue(&bx.llcx, md); llvm::LLVMSetMetadata(call, kind, md); diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs index 00f7b479fa7..89595af38a5 100644 --- a/compiler/rustc_codegen_llvm/src/back/write.rs +++ b/compiler/rustc_codegen_llvm/src/back/write.rs @@ -25,8 +25,8 @@ use rustc_session::Session; use rustc_session::config::{ self, Lto, OutputType, Passes, RemapPathScopeComponents, SplitDwarfKind, SwitchWithOptPath, }; -use rustc_span::InnerSpan; use rustc_span::symbol::sym; +use rustc_span::{BytePos, InnerSpan, Pos, SpanData, SyntaxContext}; use rustc_target::spec::{CodeModel, RelocModel, SanitizerSet, SplitDebuginfo, TlsModel}; use tracing::debug; @@ -413,21 +413,32 @@ fn report_inline_asm( cgcx: &CodegenContext, msg: String, level: llvm::DiagnosticLevel, - mut cookie: u64, + cookie: u64, source: Option<(String, Vec)>, ) { // In LTO build we may get srcloc values from other crates which are invalid // since they use a different source map. To be safe we just suppress these // in LTO builds. - if matches!(cgcx.lto, Lto::Fat | Lto::Thin) { - cookie = 0; - } + let span = if cookie == 0 || matches!(cgcx.lto, Lto::Fat | Lto::Thin) { + SpanData::default() + } else { + let lo = BytePos::from_u32(cookie as u32); + let hi = BytePos::from_u32((cookie >> 32) as u32); + SpanData { + lo, + // LLVM version < 19 silently truncates the cookie to 32 bits in some situations. + hi: if hi.to_u32() != 0 { hi } else { lo }, + ctxt: SyntaxContext::root(), + parent: None, + } + }; let level = match level { llvm::DiagnosticLevel::Error => Level::Error, llvm::DiagnosticLevel::Warning => Level::Warning, llvm::DiagnosticLevel::Note | llvm::DiagnosticLevel::Remark => Level::Note, }; - cgcx.diag_emitter.inline_asm_error(cookie.try_into().unwrap(), msg, level, source); + let msg = msg.strip_prefix("error: ").unwrap_or(&msg).to_string(); + cgcx.diag_emitter.inline_asm_error(span, msg, level, source); } unsafe extern "C" fn diagnostic_handler(info: &DiagnosticInfo, user: *mut c_void) { diff --git a/compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs b/compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs index a4cb5a25d1b..11043b664f5 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs @@ -151,7 +151,7 @@ impl InlineAsmDiagnostic { unsafe { SrcMgrDiagnostic::unpack(super::LLVMRustGetSMDiagnostic(di, &mut cookie)) }; InlineAsmDiagnostic { level: smdiag.level, - cookie: cookie.into(), + cookie, message: smdiag.message, source: smdiag.source, } diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 17b0ec4b936..af49d57cc60 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -2316,7 +2316,7 @@ unsafe extern "C" { pub fn LLVMRustGetSMDiagnostic<'a>( DI: &'a DiagnosticInfo, - cookie_out: &mut c_uint, + cookie_out: &mut u64, ) -> &'a SMDiagnostic; pub fn LLVMRustUnpackSMDiagnostic( -- cgit 1.4.1-3-g733a5 From bd8f8e063195d17ed7ddfd0895b9f235a90ab8f8 Mon Sep 17 00:00:00 2001 From: Folkert Date: Thu, 8 Aug 2024 10:20:40 +0200 Subject: codegen `#[naked]` functions using `global_asm!` --- compiler/rustc_codegen_gcc/src/asm.rs | 7 + compiler/rustc_codegen_llvm/src/asm.rs | 8 + compiler/rustc_codegen_llvm/src/attributes.rs | 14 +- compiler/rustc_codegen_ssa/src/codegen_attrs.rs | 11 +- compiler/rustc_codegen_ssa/src/mir/mod.rs | 6 + compiler/rustc_codegen_ssa/src/mir/naked_asm.rs | 257 ++++++++++++++++++++++++ compiler/rustc_codegen_ssa/src/mono_item.rs | 9 +- compiler/rustc_codegen_ssa/src/traits/asm.rs | 7 + compiler/rustc_middle/src/mir/mono.rs | 5 +- tests/codegen/naked-asan.rs | 6 +- tests/codegen/naked-fn/aligned.rs | 9 +- tests/codegen/naked-fn/generics.rs | 115 +++++++++++ tests/codegen/naked-fn/instruction-set.rs | 59 ++++++ tests/codegen/naked-fn/naked-functions.rs | 150 ++++++++++++-- tests/codegen/naked-fn/naked-nocoverage.rs | 19 -- tests/codegen/naked-fn/naked-noinline.rs | 31 --- tests/crashes/124375.rs | 11 - tests/ui/asm/naked-functions-instruction-set.rs | 2 +- 18 files changed, 624 insertions(+), 102 deletions(-) create mode 100644 compiler/rustc_codegen_ssa/src/mir/naked_asm.rs create mode 100644 tests/codegen/naked-fn/generics.rs create mode 100644 tests/codegen/naked-fn/instruction-set.rs delete mode 100644 tests/codegen/naked-fn/naked-nocoverage.rs delete mode 100644 tests/codegen/naked-fn/naked-noinline.rs delete mode 100644 tests/crashes/124375.rs (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_gcc/src/asm.rs b/compiler/rustc_codegen_gcc/src/asm.rs index a1f9eab10e7..415f8affab9 100644 --- a/compiler/rustc_codegen_gcc/src/asm.rs +++ b/compiler/rustc_codegen_gcc/src/asm.rs @@ -867,6 +867,13 @@ impl<'gcc, 'tcx> AsmCodegenMethods<'tcx> for CodegenCx<'gcc, 'tcx> { template_str.push_str("\n.popsection"); self.context.add_top_level_asm(None, &template_str); } + + fn mangled_name(&self, instance: Instance<'tcx>) -> String { + // TODO(@Amanieu): Additional mangling is needed on + // some targets to add a leading underscore (Mach-O) + // or byte count suffixes (x86 Windows). + self.tcx.symbol_name(instance).name.to_string() + } } fn modifier_to_gcc( diff --git a/compiler/rustc_codegen_llvm/src/asm.rs b/compiler/rustc_codegen_llvm/src/asm.rs index d1804cb49ad..f257abe2a71 100644 --- a/compiler/rustc_codegen_llvm/src/asm.rs +++ b/compiler/rustc_codegen_llvm/src/asm.rs @@ -442,6 +442,14 @@ impl<'tcx> AsmCodegenMethods<'tcx> for CodegenCx<'_, 'tcx> { ); } } + + fn mangled_name(&self, instance: Instance<'tcx>) -> String { + let llval = self.get_fn(instance); + llvm::build_string(|s| unsafe { + llvm::LLVMRustGetMangledName(llval, s); + }) + .expect("symbol is not valid UTF-8") + } } pub(crate) fn inline_asm_call<'ll>( diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs index cb958c1d4d7..5552a241060 100644 --- a/compiler/rustc_codegen_llvm/src/attributes.rs +++ b/compiler/rustc_codegen_llvm/src/attributes.rs @@ -395,17 +395,9 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( to_add.push(MemoryEffects::None.create_attr(cx.llcx)); } if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { - to_add.push(AttributeKind::Naked.create_attr(cx.llcx)); - // HACK(jubilee): "indirect branch tracking" works by attaching prologues to functions. - // And it is a module-level attribute, so the alternative is pulling naked functions into - // new LLVM modules. Otherwise LLVM's "naked" functions come with endbr prefixes per - // https://github.com/rust-lang/rust/issues/98768 - to_add.push(AttributeKind::NoCfCheck.create_attr(cx.llcx)); - if llvm_util::get_version() < (19, 0, 0) { - // Prior to LLVM 19, branch-target-enforcement was disabled by setting the attribute to - // the string "false". Now it is disabled by absence of the attribute. - to_add.push(llvm::CreateAttrStringValue(cx.llcx, "branch-target-enforcement", "false")); - } + // do nothing; a naked function is converted into an extern function + // and a global assembly block. LLVM's support for naked functions is + // not used. } else { // Do not set sanitizer attributes for naked functions. to_add.extend(sanitize_attrs(cx, codegen_fn_attrs.no_sanitize)); diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index a5acd8170ab..01dd75c5ee8 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -542,6 +542,13 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { } }); + // naked function MUST NOT be inlined! This attribute is required for the rust compiler itself, + // but not for the code generation backend because at that point the naked function will just be + // a declaration, with a definition provided in global assembly. + if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { + codegen_fn_attrs.inline = InlineAttr::Never; + } + codegen_fn_attrs.optimize = attrs.iter().fold(OptimizeAttr::None, |ia, attr| { if !attr.has_name(sym::optimize) { return ia; @@ -626,10 +633,6 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { } } - if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { - codegen_fn_attrs.inline = InlineAttr::Never; - } - // Weak lang items have the same semantics as "std internal" symbols in the // sense that they're preserved through all our LTO passes and only // strippable by the linker. diff --git a/compiler/rustc_codegen_ssa/src/mir/mod.rs b/compiler/rustc_codegen_ssa/src/mir/mod.rs index 0cbc5c45736..62f69af3f2f 100644 --- a/compiler/rustc_codegen_ssa/src/mir/mod.rs +++ b/compiler/rustc_codegen_ssa/src/mir/mod.rs @@ -20,6 +20,7 @@ mod coverageinfo; pub mod debuginfo; mod intrinsic; mod locals; +mod naked_asm; pub mod operand; pub mod place; mod rvalue; @@ -176,6 +177,11 @@ pub fn codegen_mir<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( let fn_abi = cx.fn_abi_of_instance(instance, ty::List::empty()); debug!("fn_abi: {:?}", fn_abi); + if cx.tcx().codegen_fn_attrs(instance.def_id()).flags.contains(CodegenFnAttrFlags::NAKED) { + crate::mir::naked_asm::codegen_naked_asm::(cx, &mir, instance); + return; + } + let debug_context = cx.create_function_debug_context(instance, fn_abi, llfn, mir); let start_llbb = Bx::append_block(cx, llfn, "start"); diff --git a/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs b/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs new file mode 100644 index 00000000000..0767c002c5e --- /dev/null +++ b/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs @@ -0,0 +1,257 @@ +use rustc_attr::InstructionSetAttr; +use rustc_middle::mir::mono::{Linkage, MonoItem, MonoItemData, Visibility}; +use rustc_middle::mir::{Body, InlineAsmOperand}; +use rustc_middle::ty::layout::{HasTyCtxt, HasTypingEnv, LayoutOf}; +use rustc_middle::ty::{Instance, TyCtxt}; +use rustc_middle::{bug, ty}; +use rustc_span::sym; + +use crate::common; +use crate::traits::{AsmCodegenMethods, BuilderMethods, GlobalAsmOperandRef, MiscCodegenMethods}; + +pub(crate) fn codegen_naked_asm<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( + cx: &'a Bx::CodegenCx, + mir: &Body<'tcx>, + instance: Instance<'tcx>, +) { + let rustc_middle::mir::TerminatorKind::InlineAsm { + asm_macro: _, + template, + ref operands, + options, + line_spans, + targets: _, + unwind: _, + } = mir.basic_blocks.iter().next().unwrap().terminator().kind + else { + bug!("#[naked] functions should always terminate with an asm! block") + }; + + let operands: Vec<_> = + operands.iter().map(|op| inline_to_global_operand::(cx, instance, op)).collect(); + + let item_data = cx.codegen_unit().items().get(&MonoItem::Fn(instance)).unwrap(); + let name = cx.mangled_name(instance); + let (begin, end) = prefix_and_suffix(cx.tcx(), instance, &name, item_data); + + let mut template_vec = Vec::new(); + template_vec.push(rustc_ast::ast::InlineAsmTemplatePiece::String(begin.into())); + template_vec.extend(template.iter().cloned()); + template_vec.push(rustc_ast::ast::InlineAsmTemplatePiece::String(end.into())); + + cx.codegen_global_asm(&template_vec, &operands, options, line_spans); +} + +fn inline_to_global_operand<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( + cx: &'a Bx::CodegenCx, + instance: Instance<'tcx>, + op: &InlineAsmOperand<'tcx>, +) -> GlobalAsmOperandRef<'tcx> { + match op { + InlineAsmOperand::Const { value } => { + let const_value = instance + .instantiate_mir_and_normalize_erasing_regions( + cx.tcx(), + cx.typing_env(), + ty::EarlyBinder::bind(value.const_), + ) + .eval(cx.tcx(), cx.typing_env(), value.span) + .expect("erroneous constant missed by mono item collection"); + + let mono_type = instance.instantiate_mir_and_normalize_erasing_regions( + cx.tcx(), + cx.typing_env(), + ty::EarlyBinder::bind(value.ty()), + ); + + let string = common::asm_const_to_str( + cx.tcx(), + value.span, + const_value, + cx.layout_of(mono_type), + ); + + GlobalAsmOperandRef::Const { string } + } + InlineAsmOperand::SymFn { value } => { + let mono_type = instance.instantiate_mir_and_normalize_erasing_regions( + cx.tcx(), + cx.typing_env(), + ty::EarlyBinder::bind(value.ty()), + ); + + let instance = match mono_type.kind() { + &ty::FnDef(def_id, args) => Instance::new(def_id, args), + _ => bug!("asm sym is not a function"), + }; + + GlobalAsmOperandRef::SymFn { instance } + } + InlineAsmOperand::SymStatic { def_id } => { + GlobalAsmOperandRef::SymStatic { def_id: *def_id } + } + InlineAsmOperand::In { .. } + | InlineAsmOperand::Out { .. } + | InlineAsmOperand::InOut { .. } + | InlineAsmOperand::Label { .. } => { + bug!("invalid operand type for naked_asm!") + } + } +} + +enum AsmBinaryFormat { + Elf, + Macho, + Coff, +} + +impl AsmBinaryFormat { + fn from_target(target: &rustc_target::spec::Target) -> Self { + if target.is_like_windows { + Self::Coff + } else if target.is_like_osx { + Self::Macho + } else { + Self::Elf + } + } +} + +fn prefix_and_suffix<'tcx>( + tcx: TyCtxt<'tcx>, + instance: Instance<'tcx>, + asm_name: &str, + item_data: &MonoItemData, +) -> (String, String) { + use std::fmt::Write; + + let is_arm = tcx.sess.target.arch == "arm"; + let is_thumb = tcx.sess.unstable_target_features.contains(&sym::thumb_mode); + + let attrs = tcx.codegen_fn_attrs(instance.def_id()); + let link_section = attrs.link_section.map(|symbol| symbol.as_str().to_string()); + let align = attrs.alignment.map(|a| a.bytes()).unwrap_or(4); + + // See https://sourceware.org/binutils/docs/as/ARM-Directives.html for info on these directives. + // In particular, `.arm` can also be written `.code 32` and `.thumb` as `.code 16`. + let (arch_prefix, arch_suffix) = if is_arm { + ( + match attrs.instruction_set { + None => match is_thumb { + true => ".thumb\n.thumb_func", + false => ".arm", + }, + Some(InstructionSetAttr::ArmT32) => ".thumb\n.thumb_func", + Some(InstructionSetAttr::ArmA32) => ".arm", + }, + match is_thumb { + true => ".thumb", + false => ".arm", + }, + ) + } else { + ("", "") + }; + + let emit_fatal = |msg| tcx.dcx().span_fatal(tcx.def_span(instance.def_id()), msg); + + // see https://godbolt.org/z/cPK4sxKor. + // None means the default, which corresponds to internal linkage + let linkage = match item_data.linkage { + Linkage::External => Some(".globl"), + Linkage::LinkOnceAny => Some(".weak"), + Linkage::LinkOnceODR => Some(".weak"), + Linkage::WeakAny => Some(".weak"), + Linkage::WeakODR => Some(".weak"), + Linkage::Internal => None, + Linkage::Private => None, + Linkage::Appending => emit_fatal("Only global variables can have appending linkage!"), + Linkage::Common => emit_fatal("Functions may not have common linkage"), + Linkage::AvailableExternally => { + // this would make the function equal an extern definition + emit_fatal("Functions may not have available_externally linkage") + } + Linkage::ExternalWeak => { + // FIXME: actually this causes a SIGILL in LLVM + emit_fatal("Functions may not have external weak linkage") + } + }; + + let mut begin = String::new(); + let mut end = String::new(); + match AsmBinaryFormat::from_target(&tcx.sess.target) { + AsmBinaryFormat::Elf => { + let section = link_section.unwrap_or(format!(".text.{asm_name}")); + + let progbits = match is_arm { + true => "%progbits", + false => "@progbits", + }; + + let function = match is_arm { + true => "%function", + false => "@function", + }; + + writeln!(begin, ".pushsection {section},\"ax\", {progbits}").unwrap(); + writeln!(begin, ".balign {align}").unwrap(); + if let Some(linkage) = linkage { + writeln!(begin, "{linkage} {asm_name}").unwrap(); + } + if let Visibility::Hidden = item_data.visibility { + writeln!(begin, ".hidden {asm_name}").unwrap(); + } + writeln!(begin, ".type {asm_name}, {function}").unwrap(); + if !arch_prefix.is_empty() { + writeln!(begin, "{}", arch_prefix).unwrap(); + } + writeln!(begin, "{asm_name}:").unwrap(); + + writeln!(end).unwrap(); + writeln!(end, ".size {asm_name}, . - {asm_name}").unwrap(); + writeln!(end, ".popsection").unwrap(); + if !arch_suffix.is_empty() { + writeln!(end, "{}", arch_suffix).unwrap(); + } + } + AsmBinaryFormat::Macho => { + let section = link_section.unwrap_or("__TEXT,__text".to_string()); + writeln!(begin, ".pushsection {},regular,pure_instructions", section).unwrap(); + writeln!(begin, ".balign {align}").unwrap(); + if let Some(linkage) = linkage { + writeln!(begin, "{linkage} {asm_name}").unwrap(); + } + if let Visibility::Hidden = item_data.visibility { + writeln!(begin, ".private_extern {asm_name}").unwrap(); + } + writeln!(begin, "{asm_name}:").unwrap(); + + writeln!(end).unwrap(); + writeln!(end, ".popsection").unwrap(); + if !arch_suffix.is_empty() { + writeln!(end, "{}", arch_suffix).unwrap(); + } + } + AsmBinaryFormat::Coff => { + let section = link_section.unwrap_or(format!(".text.{asm_name}")); + writeln!(begin, ".pushsection {},\"xr\"", section).unwrap(); + writeln!(begin, ".balign {align}").unwrap(); + if let Some(linkage) = linkage { + writeln!(begin, "{linkage} {asm_name}").unwrap(); + } + writeln!(begin, ".def {asm_name}").unwrap(); + writeln!(begin, ".scl 2").unwrap(); + writeln!(begin, ".type 32").unwrap(); + writeln!(begin, ".endef {asm_name}").unwrap(); + writeln!(begin, "{asm_name}:").unwrap(); + + writeln!(end).unwrap(); + writeln!(end, ".popsection").unwrap(); + if !arch_suffix.is_empty() { + writeln!(end, "{}", arch_suffix).unwrap(); + } + } + } + + (begin, end) +} diff --git a/compiler/rustc_codegen_ssa/src/mono_item.rs b/compiler/rustc_codegen_ssa/src/mono_item.rs index 038c5857fac..6749bc63327 100644 --- a/compiler/rustc_codegen_ssa/src/mono_item.rs +++ b/compiler/rustc_codegen_ssa/src/mono_item.rs @@ -1,4 +1,5 @@ use rustc_hir as hir; +use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags; use rustc_middle::mir::interpret::ErrorHandled; use rustc_middle::mir::mono::{Linkage, MonoItem, Visibility}; use rustc_middle::ty::Instance; @@ -135,7 +136,13 @@ impl<'a, 'tcx: 'a> MonoItemExt<'a, 'tcx> for MonoItem<'tcx> { cx.predefine_static(def_id, linkage, visibility, symbol_name); } MonoItem::Fn(instance) => { - cx.predefine_fn(instance, linkage, visibility, symbol_name); + let attrs = cx.tcx().codegen_fn_attrs(instance.def_id()); + + if attrs.flags.contains(CodegenFnAttrFlags::NAKED) { + // do not define this function; it will become a global assembly block + } else { + cx.predefine_fn(instance, linkage, visibility, symbol_name); + }; } MonoItem::GlobalAsm(..) => {} } diff --git a/compiler/rustc_codegen_ssa/src/traits/asm.rs b/compiler/rustc_codegen_ssa/src/traits/asm.rs index f4853da1156..7767bffbfbf 100644 --- a/compiler/rustc_codegen_ssa/src/traits/asm.rs +++ b/compiler/rustc_codegen_ssa/src/traits/asm.rs @@ -68,4 +68,11 @@ pub trait AsmCodegenMethods<'tcx> { options: InlineAsmOptions, line_spans: &[Span], ); + + /// The mangled name of this instance + /// + /// Additional mangling is used on + /// some targets to add a leading underscore (Mach-O) + /// or byte count suffixes (x86 Windows). + fn mangled_name(&self, instance: Instance<'tcx>) -> String; } diff --git a/compiler/rustc_middle/src/mir/mono.rs b/compiler/rustc_middle/src/mir/mono.rs index 161716610fe..1f50b67cb50 100644 --- a/compiler/rustc_middle/src/mir/mono.rs +++ b/compiler/rustc_middle/src/mir/mono.rs @@ -19,6 +19,7 @@ use rustc_target::spec::SymbolVisibility; use tracing::debug; use crate::dep_graph::{DepNode, WorkProduct, WorkProductId}; +use crate::middle::codegen_fn_attrs::CodegenFnAttrFlags; use crate::ty::{GenericArgs, Instance, InstanceKind, SymbolName, TyCtxt}; /// Describes how a monomorphization will be instantiated in object files. @@ -104,7 +105,9 @@ impl<'tcx> MonoItem<'tcx> { let entry_def_id = tcx.entry_fn(()).map(|(id, _)| id); // If this function isn't inlined or otherwise has an extern // indicator, then we'll be creating a globally shared version. - if tcx.codegen_fn_attrs(instance.def_id()).contains_extern_indicator() + let codegen_fn_attrs = tcx.codegen_fn_attrs(instance.def_id()); + if codegen_fn_attrs.contains_extern_indicator() + || codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) || !instance.def.generates_cgu_internal_copy(tcx) || Some(instance.def_id()) == entry_def_id { diff --git a/tests/codegen/naked-asan.rs b/tests/codegen/naked-asan.rs index bcaa60baeff..639f069c0d9 100644 --- a/tests/codegen/naked-asan.rs +++ b/tests/codegen/naked-asan.rs @@ -8,7 +8,11 @@ #![no_std] #![feature(abi_x86_interrupt, naked_functions)] -// CHECK: define x86_intrcc void @page_fault_handler(ptr {{.*}}%0, i64 {{.*}}%1){{.*}}#[[ATTRS:[0-9]+]] { +pub fn caller() { + page_fault_handler(1, 2); +} + +// CHECK: declare x86_intrcc void @page_fault_handler(ptr {{.*}}, i64 {{.*}}){{.*}}#[[ATTRS:[0-9]+]] // CHECK-NOT: memcpy #[naked] #[no_mangle] diff --git a/tests/codegen/naked-fn/aligned.rs b/tests/codegen/naked-fn/aligned.rs index 3bbd67981e5..d9dcd7f6c3e 100644 --- a/tests/codegen/naked-fn/aligned.rs +++ b/tests/codegen/naked-fn/aligned.rs @@ -6,15 +6,12 @@ #![feature(naked_functions, fn_align)] use std::arch::naked_asm; -// CHECK: Function Attrs: naked -// CHECK-NEXT: define{{.*}}void @naked_empty() -// CHECK: align 16 +// CHECK: .balign 16 +// CHECK-LABEL: naked_empty: #[repr(align(16))] #[no_mangle] #[naked] pub unsafe extern "C" fn naked_empty() { - // CHECK-NEXT: start: - // CHECK-NEXT: call void asm - // CHECK-NEXT: unreachable + // CHECK: ret naked_asm!("ret"); } diff --git a/tests/codegen/naked-fn/generics.rs b/tests/codegen/naked-fn/generics.rs new file mode 100644 index 00000000000..23c7766203b --- /dev/null +++ b/tests/codegen/naked-fn/generics.rs @@ -0,0 +1,115 @@ +//@ compile-flags: -O +//@ only-x86_64 + +#![crate_type = "lib"] +#![feature(naked_functions, asm_const)] + +use std::arch::naked_asm; + +#[no_mangle] +fn test(x: u64) { + // just making sure these symbols get used + using_const_generics::<1>(x); + using_const_generics::<2>(x); + + generic_function::(x as i64); + + let foo = Foo(x); + + foo.method(); + foo.trait_method(); +} + +// CHECK: .balign 4 +// CHECK: add rax, 2 +// CHECK: add rax, 42 + +// CHECK: .balign 4 +// CHECK: add rax, 1 +// CHECK: add rax, 42 + +#[naked] +pub extern "C" fn using_const_generics(x: u64) -> u64 { + const M: u64 = 42; + + unsafe { + naked_asm!( + "xor rax, rax", + "add rax, rdi", + "add rax, {}", + "add rax, {}", + "ret", + const N, + const M, + ) + } +} + +trait Invert { + fn invert(self) -> Self; +} + +impl Invert for i64 { + fn invert(self) -> Self { + -1 * self + } +} + +// CHECK-LABEL: generic_function +// CHECK: .balign 4 +// CHECK: call +// CHECK: ret + +#[naked] +pub extern "C" fn generic_function(x: i64) -> i64 { + unsafe { + naked_asm!( + "call {}", + "ret", + sym ::invert, + ) + } +} + +#[derive(Copy, Clone)] +#[repr(transparent)] +struct Foo(u64); + +// CHECK-LABEL: method +// CHECK: .balign 4 +// CHECK: mov rax, rdi + +impl Foo { + #[naked] + #[no_mangle] + extern "C" fn method(self) -> u64 { + unsafe { naked_asm!("mov rax, rdi", "ret") } + } +} + +// CHECK-LABEL: trait_method +// CHECK: .balign 4 +// CHECK: mov rax, rdi + +trait Bar { + extern "C" fn trait_method(self) -> u64; +} + +impl Bar for Foo { + #[naked] + #[no_mangle] + extern "C" fn trait_method(self) -> u64 { + unsafe { naked_asm!("mov rax, rdi", "ret") } + } +} + +// CHECK-LABEL: naked_with_args_and_return +// CHECK: .balign 4 +// CHECK: lea rax, [rdi + rsi] + +// this previously ICE'd, see https://github.com/rust-lang/rust/issues/124375 +#[naked] +#[no_mangle] +pub unsafe extern "C" fn naked_with_args_and_return(a: isize, b: isize) -> isize { + naked_asm!("lea rax, [rdi + rsi]", "ret"); +} diff --git a/tests/codegen/naked-fn/instruction-set.rs b/tests/codegen/naked-fn/instruction-set.rs new file mode 100644 index 00000000000..5b790b2034c --- /dev/null +++ b/tests/codegen/naked-fn/instruction-set.rs @@ -0,0 +1,59 @@ +//@ revisions: arm-mode thumb-mode +//@ [arm-mode] compile-flags: --target armv5te-none-eabi +//@ [thumb-mode] compile-flags: --target thumbv5te-none-eabi +//@ [arm-mode] needs-llvm-components: arm +//@ [thumb-mode] needs-llvm-components: arm + +#![crate_type = "lib"] +#![feature(no_core, lang_items, rustc_attrs, naked_functions)] +#![no_core] + +#[rustc_builtin_macro] +macro_rules! naked_asm { + () => {}; +} + +#[lang = "sized"] +trait Sized {} +#[lang = "copy"] +trait Copy {} + +// arm-mode: .arm +// thumb-mode: .thumb +// CHECK-LABEL: test_unspecified: +// CHECK: bx lr +// CHECK: .popsection +// arm-mode: .arm +// thumb-mode: .thumb +#[no_mangle] +#[naked] +unsafe extern "C" fn test_unspecified() { + naked_asm!("bx lr"); +} + +// CHECK: .thumb +// CHECK: .thumb_func +// CHECK-LABEL: test_thumb: +// CHECK: bx lr +// CHECK: .popsection +// arm-mode: .arm +// thumb-mode: .thumb +#[no_mangle] +#[naked] +#[instruction_set(arm::t32)] +unsafe extern "C" fn test_thumb() { + naked_asm!("bx lr"); +} + +// CHECK: .arm +// CHECK-LABEL: test_arm: +// CHECK: bx lr +// CHECK: .popsection +// arm-mode: .arm +// thumb-mode: .thumb +#[no_mangle] +#[naked] +#[instruction_set(arm::a32)] +unsafe extern "C" fn test_arm() { + naked_asm!("bx lr"); +} diff --git a/tests/codegen/naked-fn/naked-functions.rs b/tests/codegen/naked-fn/naked-functions.rs index 3f7447af599..f505d27d48c 100644 --- a/tests/codegen/naked-fn/naked-functions.rs +++ b/tests/codegen/naked-fn/naked-functions.rs @@ -1,29 +1,147 @@ -//@ compile-flags: -C no-prepopulate-passes -Copt-level=0 -//@ needs-asm-support -//@ only-x86_64 +//@ revisions: linux win macos thumb +// +//@[linux] compile-flags: --target x86_64-unknown-linux-gnu +//@[linux] needs-llvm-components: x86 +//@[win] compile-flags: --target x86_64-pc-windows-gnu +//@[win] needs-llvm-components: x86 +//@[macos] compile-flags: --target aarch64-apple-darwin +//@[macos] needs-llvm-components: arm +//@[thumb] compile-flags: --target thumbv7em-none-eabi +//@[thumb] needs-llvm-components: arm #![crate_type = "lib"] -#![feature(naked_functions)] -use std::arch::naked_asm; +#![feature(no_core, lang_items, rustc_attrs, naked_functions)] +#![no_core] + +#[rustc_builtin_macro] +macro_rules! naked_asm { + () => {}; +} + +#[lang = "sized"] +trait Sized {} +#[lang = "copy"] +trait Copy {} + +// linux,win: .intel_syntax +// +// linux: .pushsection .text.naked_empty,\22ax\22, @progbits +// macos: .pushsection __TEXT,__text,regular,pure_instructions +// win: .pushsection .text.naked_empty,\22xr\22 +// thumb: .pushsection .text.naked_empty,\22ax\22, %progbits +// +// CHECK: .balign 4 +// +// linux,win,thumb: .globl naked_empty +// macos: .globl _naked_empty +// +// CHECK-NOT: .private_extern +// CHECK-NOT: .hidden +// +// linux: .type naked_empty, @function +// +// win: .def naked_empty +// win: .scl 2 +// win: .type 32 +// win: .endef naked_empty +// +// thumb: .type naked_empty, %function +// thumb: .thumb +// thumb: .thumb_func +// +// CHECK-LABEL: naked_empty: +// +// linux,macos,win: ret +// thumb: bx lr +// +// CHECK: .popsection +// +// thumb: .thumb +// +// linux,win: .att_syntax -// CHECK: Function Attrs: naked -// CHECK-NEXT: define{{.*}}void @naked_empty() #[no_mangle] #[naked] pub unsafe extern "C" fn naked_empty() { - // CHECK-NEXT: {{.+}}: - // CHECK-NEXT: call void asm - // CHECK-NEXT: unreachable + #[cfg(not(all(target_arch = "arm", target_feature = "thumb-mode")))] naked_asm!("ret"); + + #[cfg(all(target_arch = "arm", target_feature = "thumb-mode"))] + naked_asm!("bx lr"); } -// CHECK: Function Attrs: naked -// CHECK-NEXT: define{{.*}}i{{[0-9]+}} @naked_with_args_and_return(i64 %0, i64 %1) +// linux,win: .intel_syntax +// +// linux: .pushsection .text.naked_with_args_and_return,\22ax\22, @progbits +// macos: .pushsection __TEXT,__text,regular,pure_instructions +// win: .pushsection .text.naked_with_args_and_return,\22xr\22 +// thumb: .pushsection .text.naked_with_args_and_return,\22ax\22, %progbits +// +// CHECK: .balign 4 +// +// linux,win,thumb: .globl naked_with_args_and_return +// macos: .globl _naked_with_args_and_return +// +// CHECK-NOT: .private_extern +// CHECK-NOT: .hidden +// +// linux: .type naked_with_args_and_return, @function +// +// win: .def naked_with_args_and_return +// win: .scl 2 +// win: .type 32 +// win: .endef naked_with_args_and_return +// +// thumb: .type naked_with_args_and_return, %function +// thumb: .thumb +// thumb: .thumb_func +// +// CHECK-LABEL: naked_with_args_and_return: +// +// linux, win: lea rax, [rdi + rsi] +// macos: add x0, x0, x1 +// thumb: adds r0, r0, r1 +// +// linux,macos,win: ret +// thumb: bx lr +// +// CHECK: .popsection +// +// thumb: .thumb +// +// linux,win: .att_syntax + #[no_mangle] #[naked] pub unsafe extern "C" fn naked_with_args_and_return(a: isize, b: isize) -> isize { - // CHECK-NEXT: {{.+}}: - // CHECK-NEXT: call void asm - // CHECK-NEXT: unreachable - naked_asm!("lea rax, [rdi + rsi]", "ret"); + #[cfg(any(target_os = "windows", target_os = "linux"))] + { + naked_asm!("lea rax, [rdi + rsi]", "ret") + } + + #[cfg(target_os = "macos")] + { + naked_asm!("add x0, x0, x1", "ret") + } + + #[cfg(all(target_arch = "arm", target_feature = "thumb-mode"))] + { + naked_asm!("adds r0, r0, r1", "bx lr") + } +} + +// linux: .pushsection .text.some_different_name,\22ax\22, @progbits +// macos: .pushsection .text.some_different_name,regular,pure_instructions +// win: .pushsection .text.some_different_name,\22xr\22 +// thumb: .pushsection .text.some_different_name,\22ax\22, %progbits +// CHECK-LABEL: test_link_section: +#[no_mangle] +#[naked] +#[link_section = ".text.some_different_name"] +pub unsafe extern "C" fn test_link_section() { + #[cfg(not(all(target_arch = "arm", target_feature = "thumb-mode")))] + naked_asm!("ret"); + + #[cfg(all(target_arch = "arm", target_feature = "thumb-mode"))] + naked_asm!("bx lr"); } diff --git a/tests/codegen/naked-fn/naked-nocoverage.rs b/tests/codegen/naked-fn/naked-nocoverage.rs deleted file mode 100644 index f63661bcd3a..00000000000 --- a/tests/codegen/naked-fn/naked-nocoverage.rs +++ /dev/null @@ -1,19 +0,0 @@ -// Checks that naked functions are not instrumented by -Cinstrument-coverage. -// Regression test for issue #105170. -// -//@ needs-asm-support -//@ compile-flags: -Zno-profiler-runtime -//@ compile-flags: -Cinstrument-coverage -#![crate_type = "lib"] -#![feature(naked_functions)] -use std::arch::naked_asm; - -#[naked] -#[no_mangle] -pub unsafe extern "C" fn f() { - // CHECK: define {{(dso_local )?}}void @f() - // CHECK-NEXT: start: - // CHECK-NEXT: call void asm - // CHECK-NEXT: unreachable - naked_asm!(""); -} diff --git a/tests/codegen/naked-fn/naked-noinline.rs b/tests/codegen/naked-fn/naked-noinline.rs deleted file mode 100644 index 6ea36d96783..00000000000 --- a/tests/codegen/naked-fn/naked-noinline.rs +++ /dev/null @@ -1,31 +0,0 @@ -// Checks that naked functions are never inlined. -//@ compile-flags: -O -Zmir-opt-level=3 -//@ needs-asm-support -//@ ignore-wasm32 -#![crate_type = "lib"] -#![feature(naked_functions)] - -use std::arch::naked_asm; - -#[naked] -#[no_mangle] -pub unsafe extern "C" fn f() { - // Check that f has naked and noinline attributes. - // - // CHECK: define {{(dso_local )?}}void @f() unnamed_addr [[ATTR:#[0-9]+]] - // CHECK-NEXT: start: - // CHECK-NEXT: call void asm - naked_asm!(""); -} - -#[no_mangle] -pub unsafe fn g() { - // Check that call to f is not inlined. - // - // CHECK-LABEL: define {{(dso_local )?}}void @g() - // CHECK-NEXT: start: - // CHECK-NEXT: call void @f() - f(); -} - -// CHECK: attributes [[ATTR]] = { naked{{.*}}noinline{{.*}} } diff --git a/tests/crashes/124375.rs b/tests/crashes/124375.rs deleted file mode 100644 index 1d877caeb8b..00000000000 --- a/tests/crashes/124375.rs +++ /dev/null @@ -1,11 +0,0 @@ -//@ known-bug: #124375 -//@ compile-flags: -Zmir-opt-level=0 -//@ only-x86_64 -#![crate_type = "lib"] -#![feature(naked_functions)] -use std::arch::naked_asm; - -#[naked] -pub unsafe extern "C" fn naked_with_args_and_return(a: isize, b: isize) -> isize { - naked_asm!("lea rax, [rdi + rsi]", "ret"); -} diff --git a/tests/ui/asm/naked-functions-instruction-set.rs b/tests/ui/asm/naked-functions-instruction-set.rs index 37c7b52c191..3a6e7a46ce5 100644 --- a/tests/ui/asm/naked-functions-instruction-set.rs +++ b/tests/ui/asm/naked-functions-instruction-set.rs @@ -24,7 +24,7 @@ unsafe extern "C" fn test_thumb() { #[no_mangle] #[naked] -#[instruction_set(arm::t32)] +#[instruction_set(arm::a32)] unsafe extern "C" fn test_arm() { naked_asm!("bx lr"); } -- cgit 1.4.1-3-g733a5 From 7c4ac71ad1bef9b1e4cb5a3fd10d0b2ef7b418c4 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 11 Dec 2024 14:28:55 +1100 Subject: coverage: Extract function metadata handling to a `covfun` submodule --- .../rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 174 +----------------- .../src/coverageinfo/mapgen/covfun.rs | 198 +++++++++++++++++++++ 2 files changed, 206 insertions(+), 166 deletions(-) create mode 100644 compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index a6c3caf9e2b..5da7848b39c 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -1,4 +1,3 @@ -use std::ffi::CString; use std::iter; use itertools::Itertools as _; @@ -9,21 +8,21 @@ use rustc_codegen_ssa::traits::{ use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_index::IndexVec; -use rustc_middle::mir::coverage::MappingKind; use rustc_middle::ty::{self, TyCtxt}; use rustc_middle::{bug, mir}; use rustc_session::RemapFileNameExt; use rustc_session::config::RemapPathScopeComponents; use rustc_span::def_id::DefIdSet; use rustc_span::{Span, Symbol}; -use rustc_target::spec::HasTargetSpec; use tracing::debug; use crate::common::CodegenCx; +use crate::coverageinfo::llvm_cov; use crate::coverageinfo::map_data::FunctionCoverage; -use crate::coverageinfo::{ffi, llvm_cov}; use crate::llvm; +mod covfun; + /// Generates and exports the coverage map, which is embedded in special /// linker sections in the final binary. /// @@ -88,38 +87,13 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { // Encode coverage mappings and generate function records for (instance, function_coverage) in function_coverage_map { - debug!("Generate function coverage for {}, {:?}", cx.codegen_unit.name(), instance); - - let mangled_function_name = tcx.symbol_name(instance).name; - let source_hash = function_coverage.source_hash(); - let is_used = function_coverage.is_used(); - - let coverage_mapping_buffer = - encode_mappings_for_function(tcx, &global_file_table, &function_coverage); - - if coverage_mapping_buffer.is_empty() { - if function_coverage.is_used() { - bug!( - "A used function should have had coverage mapping data but did not: {}", - mangled_function_name - ); - } else { - debug!("unused function had no coverage mapping data: {}", mangled_function_name); - continue; - } - } - - if !is_used { - unused_function_names.push(mangled_function_name); - } - - generate_covfun_record( + covfun::prepare_and_generate_covfun_record( cx, - mangled_function_name, - source_hash, + &global_file_table, filenames_ref, - coverage_mapping_buffer, - is_used, + &mut unused_function_names, + instance, + &function_coverage, ); } @@ -236,83 +210,6 @@ fn span_file_name(tcx: TyCtxt<'_>, span: Span) -> Symbol { Symbol::intern(&name) } -/// Using the expressions and counter regions collected for a single function, -/// generate the variable-sized payload of its corresponding `__llvm_covfun` -/// entry. The payload is returned as a vector of bytes. -/// -/// Newly-encountered filenames will be added to the global file table. -fn encode_mappings_for_function( - tcx: TyCtxt<'_>, - global_file_table: &GlobalFileTable, - function_coverage: &FunctionCoverage<'_>, -) -> Vec { - let counter_regions = function_coverage.counter_regions(); - if counter_regions.is_empty() { - return Vec::new(); - } - - let expressions = function_coverage.counter_expressions().collect::>(); - - let mut virtual_file_mapping = VirtualFileMapping::default(); - let mut code_regions = vec![]; - let mut branch_regions = vec![]; - let mut mcdc_branch_regions = vec![]; - let mut mcdc_decision_regions = vec![]; - - // Currently a function's mappings must all be in the same file as its body span. - let file_name = span_file_name(tcx, function_coverage.function_coverage_info.body_span); - - // Look up the global file ID for that filename. - let global_file_id = global_file_table.global_file_id_for_file_name(file_name); - - // Associate that global file ID with a local file ID for this function. - let local_file_id = virtual_file_mapping.local_id_for_global(global_file_id); - debug!(" file id: {local_file_id:?} => {global_file_id:?} = '{file_name:?}'"); - - // For each counter/region pair in this function+file, convert it to a - // form suitable for FFI. - for (mapping_kind, region) in counter_regions { - debug!("Adding counter {mapping_kind:?} to map for {region:?}"); - let span = ffi::CoverageSpan::from_source_region(local_file_id, region); - match mapping_kind { - MappingKind::Code(term) => { - code_regions.push(ffi::CodeRegion { span, counter: ffi::Counter::from_term(term) }); - } - MappingKind::Branch { true_term, false_term } => { - branch_regions.push(ffi::BranchRegion { - span, - true_counter: ffi::Counter::from_term(true_term), - false_counter: ffi::Counter::from_term(false_term), - }); - } - MappingKind::MCDCBranch { true_term, false_term, mcdc_params } => { - mcdc_branch_regions.push(ffi::MCDCBranchRegion { - span, - true_counter: ffi::Counter::from_term(true_term), - false_counter: ffi::Counter::from_term(false_term), - mcdc_branch_params: ffi::mcdc::BranchParameters::from(mcdc_params), - }); - } - MappingKind::MCDCDecision(mcdc_decision_params) => { - mcdc_decision_regions.push(ffi::MCDCDecisionRegion { - span, - mcdc_decision_params: ffi::mcdc::DecisionParameters::from(mcdc_decision_params), - }); - } - } - } - - // Encode the function's coverage mappings into a buffer. - llvm_cov::write_function_mappings_to_buffer( - &virtual_file_mapping.into_vec(), - &expressions, - &code_regions, - &branch_regions, - &mcdc_branch_regions, - &mcdc_decision_regions, - ) -} - /// Generates the contents of the covmap record for this CGU, which mostly /// consists of a header and a list of filenames. The record is then stored /// as a global variable in the `__llvm_covmap` section. @@ -350,61 +247,6 @@ fn generate_covmap_record<'ll>( cx.add_used_global(llglobal); } -/// Generates the contents of the covfun record for this function, which -/// contains the function's coverage mapping data. The record is then stored -/// as a global variable in the `__llvm_covfun` section. -fn generate_covfun_record( - cx: &CodegenCx<'_, '_>, - mangled_function_name: &str, - source_hash: u64, - filenames_ref: u64, - coverage_mapping_buffer: Vec, - is_used: bool, -) { - // Concatenate the encoded coverage mappings - let coverage_mapping_size = coverage_mapping_buffer.len(); - let coverage_mapping_val = cx.const_bytes(&coverage_mapping_buffer); - - let func_name_hash = llvm_cov::hash_bytes(mangled_function_name.as_bytes()); - let func_name_hash_val = cx.const_u64(func_name_hash); - let coverage_mapping_size_val = cx.const_u32(coverage_mapping_size as u32); - let source_hash_val = cx.const_u64(source_hash); - let filenames_ref_val = cx.const_u64(filenames_ref); - let func_record_val = cx.const_struct( - &[ - func_name_hash_val, - coverage_mapping_size_val, - source_hash_val, - filenames_ref_val, - coverage_mapping_val, - ], - /*packed=*/ true, - ); - - // Choose a variable name to hold this function's covfun data. - // Functions that are used have a suffix ("u") to distinguish them from - // unused copies of the same function (from different CGUs), so that if a - // linker sees both it won't discard the used copy's data. - let func_record_var_name = - CString::new(format!("__covrec_{:X}{}", func_name_hash, if is_used { "u" } else { "" })) - .unwrap(); - debug!("function record var name: {:?}", func_record_var_name); - - let llglobal = llvm::add_global(cx.llmod, cx.val_ty(func_record_val), &func_record_var_name); - llvm::set_initializer(llglobal, func_record_val); - llvm::set_global_constant(llglobal, true); - llvm::set_linkage(llglobal, llvm::Linkage::LinkOnceODRLinkage); - llvm::set_visibility(llglobal, llvm::Visibility::Hidden); - llvm::set_section(llglobal, cx.covfun_section_name()); - // LLVM's coverage mapping format specifies 8-byte alignment for items in this section. - // - llvm::set_alignment(llglobal, Align::EIGHT); - if cx.target_spec().supports_comdat() { - llvm::set_comdat(cx.llmod, llglobal, &func_record_var_name); - } - cx.add_used_global(llglobal); -} - /// Each CGU will normally only emit coverage metadata for the functions that it actually generates. /// But since we don't want unused functions to disappear from coverage reports, we also scan for /// functions that were instrumented but are not participating in codegen. diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs new file mode 100644 index 00000000000..aaa6bbcdfc9 --- /dev/null +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -0,0 +1,198 @@ +//! For each function that was instrumented for coverage, we need to embed its +//! corresponding coverage mapping metadata inside the `__llvm_covfun`[^win] +//! linker section of the final binary. +//! +//! [^win]: On Windows the section name is `.lcovfun`. + +use std::ffi::CString; + +use rustc_abi::Align; +use rustc_codegen_ssa::traits::{ + BaseTypeCodegenMethods, ConstCodegenMethods, StaticCodegenMethods, +}; +use rustc_middle::bug; +use rustc_middle::mir::coverage::MappingKind; +use rustc_middle::ty::{Instance, TyCtxt}; +use rustc_target::spec::HasTargetSpec; +use tracing::debug; + +use crate::common::CodegenCx; +use crate::coverageinfo::map_data::FunctionCoverage; +use crate::coverageinfo::mapgen::{GlobalFileTable, VirtualFileMapping, span_file_name}; +use crate::coverageinfo::{ffi, llvm_cov}; +use crate::llvm; + +pub(crate) fn prepare_and_generate_covfun_record<'ll, 'tcx>( + cx: &CodegenCx<'ll, 'tcx>, + global_file_table: &GlobalFileTable, + filenames_ref: u64, + unused_function_names: &mut Vec<&'tcx str>, + instance: Instance<'tcx>, + function_coverage: &FunctionCoverage<'tcx>, +) { + let tcx = cx.tcx; + + let mangled_function_name = tcx.symbol_name(instance).name; + let source_hash = function_coverage.source_hash(); + let is_used = function_coverage.is_used(); + + let coverage_mapping_buffer = + encode_mappings_for_function(tcx, global_file_table, function_coverage); + + if coverage_mapping_buffer.is_empty() { + if function_coverage.is_used() { + bug!( + "A used function should have had coverage mapping data but did not: {}", + mangled_function_name + ); + } else { + debug!("unused function had no coverage mapping data: {}", mangled_function_name); + return; + } + } + + if !is_used { + unused_function_names.push(mangled_function_name); + } + + generate_covfun_record( + cx, + mangled_function_name, + source_hash, + filenames_ref, + coverage_mapping_buffer, + is_used, + ); +} + +/// Using the expressions and counter regions collected for a single function, +/// generate the variable-sized payload of its corresponding `__llvm_covfun` +/// entry. The payload is returned as a vector of bytes. +/// +/// Newly-encountered filenames will be added to the global file table. +fn encode_mappings_for_function( + tcx: TyCtxt<'_>, + global_file_table: &GlobalFileTable, + function_coverage: &FunctionCoverage<'_>, +) -> Vec { + let counter_regions = function_coverage.counter_regions(); + if counter_regions.is_empty() { + return Vec::new(); + } + + let expressions = function_coverage.counter_expressions().collect::>(); + + let mut virtual_file_mapping = VirtualFileMapping::default(); + let mut code_regions = vec![]; + let mut branch_regions = vec![]; + let mut mcdc_branch_regions = vec![]; + let mut mcdc_decision_regions = vec![]; + + // Currently a function's mappings must all be in the same file as its body span. + let file_name = span_file_name(tcx, function_coverage.function_coverage_info.body_span); + + // Look up the global file ID for that filename. + let global_file_id = global_file_table.global_file_id_for_file_name(file_name); + + // Associate that global file ID with a local file ID for this function. + let local_file_id = virtual_file_mapping.local_id_for_global(global_file_id); + debug!(" file id: {local_file_id:?} => {global_file_id:?} = '{file_name:?}'"); + + // For each counter/region pair in this function+file, convert it to a + // form suitable for FFI. + for (mapping_kind, region) in counter_regions { + debug!("Adding counter {mapping_kind:?} to map for {region:?}"); + let span = ffi::CoverageSpan::from_source_region(local_file_id, region); + match mapping_kind { + MappingKind::Code(term) => { + code_regions.push(ffi::CodeRegion { span, counter: ffi::Counter::from_term(term) }); + } + MappingKind::Branch { true_term, false_term } => { + branch_regions.push(ffi::BranchRegion { + span, + true_counter: ffi::Counter::from_term(true_term), + false_counter: ffi::Counter::from_term(false_term), + }); + } + MappingKind::MCDCBranch { true_term, false_term, mcdc_params } => { + mcdc_branch_regions.push(ffi::MCDCBranchRegion { + span, + true_counter: ffi::Counter::from_term(true_term), + false_counter: ffi::Counter::from_term(false_term), + mcdc_branch_params: ffi::mcdc::BranchParameters::from(mcdc_params), + }); + } + MappingKind::MCDCDecision(mcdc_decision_params) => { + mcdc_decision_regions.push(ffi::MCDCDecisionRegion { + span, + mcdc_decision_params: ffi::mcdc::DecisionParameters::from(mcdc_decision_params), + }); + } + } + } + + // Encode the function's coverage mappings into a buffer. + llvm_cov::write_function_mappings_to_buffer( + &virtual_file_mapping.into_vec(), + &expressions, + &code_regions, + &branch_regions, + &mcdc_branch_regions, + &mcdc_decision_regions, + ) +} + +/// Generates the contents of the covfun record for this function, which +/// contains the function's coverage mapping data. The record is then stored +/// as a global variable in the `__llvm_covfun` section. +fn generate_covfun_record( + cx: &CodegenCx<'_, '_>, + mangled_function_name: &str, + source_hash: u64, + filenames_ref: u64, + coverage_mapping_buffer: Vec, + is_used: bool, +) { + // Concatenate the encoded coverage mappings + let coverage_mapping_size = coverage_mapping_buffer.len(); + let coverage_mapping_val = cx.const_bytes(&coverage_mapping_buffer); + + let func_name_hash = llvm_cov::hash_bytes(mangled_function_name.as_bytes()); + let func_name_hash_val = cx.const_u64(func_name_hash); + let coverage_mapping_size_val = cx.const_u32(coverage_mapping_size as u32); + let source_hash_val = cx.const_u64(source_hash); + let filenames_ref_val = cx.const_u64(filenames_ref); + let func_record_val = cx.const_struct( + &[ + func_name_hash_val, + coverage_mapping_size_val, + source_hash_val, + filenames_ref_val, + coverage_mapping_val, + ], + /*packed=*/ true, + ); + + // Choose a variable name to hold this function's covfun data. + // Functions that are used have a suffix ("u") to distinguish them from + // unused copies of the same function (from different CGUs), so that if a + // linker sees both it won't discard the used copy's data. + let func_record_var_name = + CString::new(format!("__covrec_{:X}{}", func_name_hash, if is_used { "u" } else { "" })) + .unwrap(); + debug!("function record var name: {:?}", func_record_var_name); + + let llglobal = llvm::add_global(cx.llmod, cx.val_ty(func_record_val), &func_record_var_name); + llvm::set_initializer(llglobal, func_record_val); + llvm::set_global_constant(llglobal, true); + llvm::set_linkage(llglobal, llvm::Linkage::LinkOnceODRLinkage); + llvm::set_visibility(llglobal, llvm::Visibility::Hidden); + llvm::set_section(llglobal, cx.covfun_section_name()); + // LLVM's coverage mapping format specifies 8-byte alignment for items in this section. + // + llvm::set_alignment(llglobal, Align::EIGHT); + if cx.target_spec().supports_comdat() { + llvm::set_comdat(cx.llmod, llglobal, &func_record_var_name); + } + cx.add_used_global(llglobal); +} -- cgit 1.4.1-3-g733a5 From 6a8c016266a6b7514ff8284dc6d8b056e34b9399 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 11 Dec 2024 15:03:31 +1100 Subject: coverage: Reify `CovfunRecord` as an intermediate step --- .../rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 22 ++++---- .../src/coverageinfo/mapgen/covfun.rs | 59 ++++++++++++---------- 2 files changed, 45 insertions(+), 36 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index 5da7848b39c..39fb0aeed07 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -19,6 +19,7 @@ use tracing::debug; use crate::common::CodegenCx; use crate::coverageinfo::llvm_cov; use crate::coverageinfo::map_data::FunctionCoverage; +use crate::coverageinfo::mapgen::covfun::prepare_covfun_record; use crate::llvm; mod covfun; @@ -85,16 +86,17 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { let mut unused_function_names = Vec::new(); - // Encode coverage mappings and generate function records - for (instance, function_coverage) in function_coverage_map { - covfun::prepare_and_generate_covfun_record( - cx, - &global_file_table, - filenames_ref, - &mut unused_function_names, - instance, - &function_coverage, - ); + let covfun_records = function_coverage_map + .into_iter() + .filter_map(|(instance, function_coverage)| { + prepare_covfun_record(tcx, &global_file_table, instance, &function_coverage) + }) + .collect::>(); + + for covfun in &covfun_records { + unused_function_names.extend(covfun.mangled_function_name_if_unused()); + + covfun::generate_covfun_record(cx, filenames_ref, covfun) } // For unused functions, we need to take their mangled names and store them diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index aaa6bbcdfc9..a68b026a4c0 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -22,16 +22,30 @@ use crate::coverageinfo::mapgen::{GlobalFileTable, VirtualFileMapping, span_file use crate::coverageinfo::{ffi, llvm_cov}; use crate::llvm; -pub(crate) fn prepare_and_generate_covfun_record<'ll, 'tcx>( - cx: &CodegenCx<'ll, 'tcx>, +/// Intermediate coverage metadata for a single function, used to help build +/// the final record that will be embedded in the `__llvm_covfun` section. +#[derive(Debug)] +pub(crate) struct CovfunRecord<'tcx> { + mangled_function_name: &'tcx str, + source_hash: u64, + is_used: bool, + coverage_mapping_buffer: Vec, +} + +impl<'tcx> CovfunRecord<'tcx> { + /// FIXME(Zalathar): Make this the responsibility of the code that determines + /// which functions are unused. + pub(crate) fn mangled_function_name_if_unused(&self) -> Option<&'tcx str> { + (!self.is_used).then_some(self.mangled_function_name) + } +} + +pub(crate) fn prepare_covfun_record<'tcx>( + tcx: TyCtxt<'tcx>, global_file_table: &GlobalFileTable, - filenames_ref: u64, - unused_function_names: &mut Vec<&'tcx str>, instance: Instance<'tcx>, function_coverage: &FunctionCoverage<'tcx>, -) { - let tcx = cx.tcx; - +) -> Option> { let mangled_function_name = tcx.symbol_name(instance).name; let source_hash = function_coverage.source_hash(); let is_used = function_coverage.is_used(); @@ -47,22 +61,11 @@ pub(crate) fn prepare_and_generate_covfun_record<'ll, 'tcx>( ); } else { debug!("unused function had no coverage mapping data: {}", mangled_function_name); - return; + return None; } } - if !is_used { - unused_function_names.push(mangled_function_name); - } - - generate_covfun_record( - cx, - mangled_function_name, - source_hash, - filenames_ref, - coverage_mapping_buffer, - is_used, - ); + Some(CovfunRecord { mangled_function_name, source_hash, is_used, coverage_mapping_buffer }) } /// Using the expressions and counter regions collected for a single function, @@ -145,14 +148,18 @@ fn encode_mappings_for_function( /// Generates the contents of the covfun record for this function, which /// contains the function's coverage mapping data. The record is then stored /// as a global variable in the `__llvm_covfun` section. -fn generate_covfun_record( - cx: &CodegenCx<'_, '_>, - mangled_function_name: &str, - source_hash: u64, +pub(crate) fn generate_covfun_record<'tcx>( + cx: &CodegenCx<'_, 'tcx>, filenames_ref: u64, - coverage_mapping_buffer: Vec, - is_used: bool, + covfun: &CovfunRecord<'tcx>, ) { + let &CovfunRecord { + mangled_function_name, + source_hash, + is_used, + ref coverage_mapping_buffer, // Previously-encoded coverage mappings + } = covfun; + // Concatenate the encoded coverage mappings let coverage_mapping_size = coverage_mapping_buffer.len(); let coverage_mapping_val = cx.const_bytes(&coverage_mapping_buffer); -- cgit 1.4.1-3-g733a5 From 512f3fdebe72532a435238435f0e16eff61fbf38 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 11 Dec 2024 15:12:23 +1100 Subject: coverage: Only generate a CGU's covmap record if it has covfun records --- compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index 39fb0aeed07..f7c3193a449 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -80,10 +80,6 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { let filenames_val = cx.const_bytes(&filenames_buffer); let filenames_ref = llvm_cov::hash_bytes(&filenames_buffer); - // Generate the coverage map header, which contains the filenames used by - // this CGU's coverage mappings, and store it in a well-known global. - generate_covmap_record(cx, covmap_version, filenames_size, filenames_val); - let mut unused_function_names = Vec::new(); let covfun_records = function_coverage_map @@ -93,6 +89,15 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { }) .collect::>(); + // If there are no covfun records for this CGU, don't generate a covmap record. + // Emitting a covmap record without any covfun records causes `llvm-cov` to + // fail when generating coverage reports, and if there are no covfun records + // then the covmap record isn't useful anyway. + // This should prevent a repeat of . + if covfun_records.is_empty() { + return; + } + for covfun in &covfun_records { unused_function_names.extend(covfun.mangled_function_name_if_unused()); @@ -117,6 +122,11 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { llvm::set_linkage(array, llvm::Linkage::InternalLinkage); llvm::set_initializer(array, initializer); } + + // Generate the coverage map header, which contains the filenames used by + // this CGU's coverage mappings, and store it in a well-known global. + // (This is skipped if we returned early due to having no covfun records.) + generate_covmap_record(cx, covmap_version, filenames_size, filenames_val); } /// Maps "global" (per-CGU) file ID numbers to their underlying filenames. -- cgit 1.4.1-3-g733a5 From 3f3a9bf7f50afbfde72cd0b9479323dddc84fe6d Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 11 Dec 2024 15:41:02 +1100 Subject: coverage: Store intermediate region tables in `CovfunRecord` This defers the call to `llvm_cov::write_function_mappings_to_buffer` until just before its enclosing global variable is created. --- .../rustc_codegen_llvm/src/coverageinfo/ffi.rs | 28 +++++++ .../src/coverageinfo/llvm_cov.rs | 7 +- .../rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 10 +-- .../src/coverageinfo/mapgen/covfun.rs | 87 ++++++++++------------ 4 files changed, 77 insertions(+), 55 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs index a6e07ea2a60..1f133141c18 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs @@ -152,6 +152,34 @@ impl CoverageSpan { } } +/// Holds tables of the various region types in one struct. +/// +/// Don't pass this struct across FFI; pass the individual region tables as +/// pointer/length pairs instead. +/// +/// Each field name has a `_regions` suffix for improved readability after +/// exhaustive destructing, which ensures that all region types are handled. +#[derive(Clone, Debug, Default)] +pub(crate) struct Regions { + pub(crate) code_regions: Vec, + pub(crate) branch_regions: Vec, + pub(crate) mcdc_branch_regions: Vec, + pub(crate) mcdc_decision_regions: Vec, +} + +impl Regions { + /// Returns true if none of this structure's tables contain any regions. + pub(crate) fn has_no_regions(&self) -> bool { + let Self { code_regions, branch_regions, mcdc_branch_regions, mcdc_decision_regions } = + self; + + code_regions.is_empty() + && branch_regions.is_empty() + && mcdc_branch_regions.is_empty() + && mcdc_decision_regions.is_empty() + } +} + /// Must match the layout of `LLVMRustCoverageCodeRegion`. #[derive(Clone, Debug)] #[repr(C)] diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs index 99c2d12b261..086cf1f44a0 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs @@ -62,11 +62,10 @@ pub(crate) fn write_filenames_to_buffer<'a>( pub(crate) fn write_function_mappings_to_buffer( virtual_file_mapping: &[u32], expressions: &[ffi::CounterExpression], - code_regions: &[ffi::CodeRegion], - branch_regions: &[ffi::BranchRegion], - mcdc_branch_regions: &[ffi::MCDCBranchRegion], - mcdc_decision_regions: &[ffi::MCDCDecisionRegion], + regions: &ffi::Regions, ) -> Vec { + let ffi::Regions { code_regions, branch_regions, mcdc_branch_regions, mcdc_decision_regions } = + regions; llvm::build_byte_buffer(|buffer| unsafe { llvm::LLVMRustCoverageWriteFunctionMappingsToBuffer( virtual_file_mapping.as_ptr(), diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index f7c3193a449..a573a37beb3 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -194,7 +194,7 @@ rustc_index::newtype_index! { /// Holds a mapping from "local" (per-function) file IDs to "global" (per-CGU) /// file IDs. -#[derive(Default)] +#[derive(Debug, Default)] struct VirtualFileMapping { local_to_global: IndexVec, global_to_local: FxIndexMap, @@ -208,10 +208,10 @@ impl VirtualFileMapping { .or_insert_with(|| self.local_to_global.push(global_file_id)) } - fn into_vec(self) -> Vec { - // This conversion should be optimized away to ~zero overhead. - // In any case, it's probably not hot enough to worry about. - self.local_to_global.into_iter().map(|global| global.as_u32()).collect() + fn to_vec(&self) -> Vec { + // This clone could be avoided by transmuting `&[GlobalFileId]` to `&[u32]`, + // but it isn't hot or expensive enough to justify the extra unsafety. + self.local_to_global.iter().map(|&global| GlobalFileId::as_u32(global)).collect() } } diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index a68b026a4c0..530e6827f55 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -29,7 +29,10 @@ pub(crate) struct CovfunRecord<'tcx> { mangled_function_name: &'tcx str, source_hash: u64, is_used: bool, - coverage_mapping_buffer: Vec, + + virtual_file_mapping: VirtualFileMapping, + expressions: Vec, + regions: ffi::Regions, } impl<'tcx> CovfunRecord<'tcx> { @@ -46,51 +49,41 @@ pub(crate) fn prepare_covfun_record<'tcx>( instance: Instance<'tcx>, function_coverage: &FunctionCoverage<'tcx>, ) -> Option> { - let mangled_function_name = tcx.symbol_name(instance).name; - let source_hash = function_coverage.source_hash(); - let is_used = function_coverage.is_used(); - - let coverage_mapping_buffer = - encode_mappings_for_function(tcx, global_file_table, function_coverage); - - if coverage_mapping_buffer.is_empty() { - if function_coverage.is_used() { - bug!( - "A used function should have had coverage mapping data but did not: {}", - mangled_function_name - ); + let mut covfun = CovfunRecord { + mangled_function_name: tcx.symbol_name(instance).name, + source_hash: function_coverage.source_hash(), + is_used: function_coverage.is_used(), + virtual_file_mapping: VirtualFileMapping::default(), + expressions: function_coverage.counter_expressions().collect::>(), + regions: ffi::Regions::default(), + }; + + fill_region_tables(tcx, global_file_table, function_coverage, &mut covfun); + + if covfun.regions.has_no_regions() { + if covfun.is_used { + bug!("a used function should have had coverage mapping data but did not: {covfun:?}"); } else { - debug!("unused function had no coverage mapping data: {}", mangled_function_name); + debug!(?covfun, "unused function had no coverage mapping data"); return None; } } - Some(CovfunRecord { mangled_function_name, source_hash, is_used, coverage_mapping_buffer }) + Some(covfun) } -/// Using the expressions and counter regions collected for a single function, -/// generate the variable-sized payload of its corresponding `__llvm_covfun` -/// entry. The payload is returned as a vector of bytes. -/// -/// Newly-encountered filenames will be added to the global file table. -fn encode_mappings_for_function( - tcx: TyCtxt<'_>, +/// Populates the mapping region tables in the current function's covfun record. +fn fill_region_tables<'tcx>( + tcx: TyCtxt<'tcx>, global_file_table: &GlobalFileTable, - function_coverage: &FunctionCoverage<'_>, -) -> Vec { + function_coverage: &FunctionCoverage<'tcx>, + covfun: &mut CovfunRecord<'tcx>, +) { let counter_regions = function_coverage.counter_regions(); if counter_regions.is_empty() { - return Vec::new(); + return; } - let expressions = function_coverage.counter_expressions().collect::>(); - - let mut virtual_file_mapping = VirtualFileMapping::default(); - let mut code_regions = vec![]; - let mut branch_regions = vec![]; - let mut mcdc_branch_regions = vec![]; - let mut mcdc_decision_regions = vec![]; - // Currently a function's mappings must all be in the same file as its body span. let file_name = span_file_name(tcx, function_coverage.function_coverage_info.body_span); @@ -98,9 +91,12 @@ fn encode_mappings_for_function( let global_file_id = global_file_table.global_file_id_for_file_name(file_name); // Associate that global file ID with a local file ID for this function. - let local_file_id = virtual_file_mapping.local_id_for_global(global_file_id); + let local_file_id = covfun.virtual_file_mapping.local_id_for_global(global_file_id); debug!(" file id: {local_file_id:?} => {global_file_id:?} = '{file_name:?}'"); + let ffi::Regions { code_regions, branch_regions, mcdc_branch_regions, mcdc_decision_regions } = + &mut covfun.regions; + // For each counter/region pair in this function+file, convert it to a // form suitable for FFI. for (mapping_kind, region) in counter_regions { @@ -133,16 +129,6 @@ fn encode_mappings_for_function( } } } - - // Encode the function's coverage mappings into a buffer. - llvm_cov::write_function_mappings_to_buffer( - &virtual_file_mapping.into_vec(), - &expressions, - &code_regions, - &branch_regions, - &mcdc_branch_regions, - &mcdc_decision_regions, - ) } /// Generates the contents of the covfun record for this function, which @@ -157,9 +143,18 @@ pub(crate) fn generate_covfun_record<'tcx>( mangled_function_name, source_hash, is_used, - ref coverage_mapping_buffer, // Previously-encoded coverage mappings + ref virtual_file_mapping, + ref expressions, + ref regions, } = covfun; + // Encode the function's coverage mappings into a buffer. + let coverage_mapping_buffer = llvm_cov::write_function_mappings_to_buffer( + &virtual_file_mapping.to_vec(), + expressions, + regions, + ); + // Concatenate the encoded coverage mappings let coverage_mapping_size = coverage_mapping_buffer.len(); let coverage_mapping_val = cx.const_bytes(&coverage_mapping_buffer); -- cgit 1.4.1-3-g733a5 From 48b883287adbe5c913e473e361c07f7c61c6bc5a Mon Sep 17 00:00:00 2001 From: Augie Fackler Date: Wed, 11 Dec 2024 04:14:16 -0500 Subject: wasm(32|64): update alignment string See llvm/llvm-project@c5ab70c508457eaece5d7ff4ab79a2f90bc67f06 @rustbot label: +llvm-main --- compiler/rustc_codegen_llvm/src/context.rs | 5 +++++ compiler/rustc_target/src/spec/targets/wasm32_unknown_emscripten.rs | 3 ++- compiler/rustc_target/src/spec/targets/wasm32_unknown_unknown.rs | 2 +- compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs | 2 +- compiler/rustc_target/src/spec/targets/wasm32_wasip1_threads.rs | 2 +- compiler/rustc_target/src/spec/targets/wasm32_wasip2.rs | 2 +- compiler/rustc_target/src/spec/targets/wasm32v1_none.rs | 2 +- compiler/rustc_target/src/spec/targets/wasm64_unknown_unknown.rs | 2 +- 8 files changed, 13 insertions(+), 7 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs index e0506c0c5fd..c602d99ff9d 100644 --- a/compiler/rustc_codegen_llvm/src/context.rs +++ b/compiler/rustc_codegen_llvm/src/context.rs @@ -164,6 +164,11 @@ pub(crate) unsafe fn create_module<'ll>( // See https://github.com/llvm/llvm-project/pull/118004 target_data_layout = target_data_layout.replace("-i128:128", ""); } + if sess.target.arch.starts_with("wasm32") || sess.target.arch.starts_with("wasm64") { + // LLVM 20 updates the wasm(32|64) layout to correctly align 128 bit integers to 128 bit. + // See https://github.com/llvm/llvm-project/pull/119204 + target_data_layout = target_data_layout.replace("-i128:128", ""); + } } // Ensure the data-layout values hardcoded remain the defaults. diff --git a/compiler/rustc_target/src/spec/targets/wasm32_unknown_emscripten.rs b/compiler/rustc_target/src/spec/targets/wasm32_unknown_emscripten.rs index a70cebbd9c8..bdb1fc55711 100644 --- a/compiler/rustc_target/src/spec/targets/wasm32_unknown_emscripten.rs +++ b/compiler/rustc_target/src/spec/targets/wasm32_unknown_emscripten.rs @@ -32,7 +32,8 @@ pub(crate) fn target() -> Target { std: Some(true), }, pointer_width: 32, - data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-f128:64-n32:64-S128-ni:1:10:20".into(), + data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-i128:128-f128:64-n32:64-S128-ni:1:10:20" + .into(), arch: "wasm32".into(), options: opts, } diff --git a/compiler/rustc_target/src/spec/targets/wasm32_unknown_unknown.rs b/compiler/rustc_target/src/spec/targets/wasm32_unknown_unknown.rs index e7165533b9c..96237f20891 100644 --- a/compiler/rustc_target/src/spec/targets/wasm32_unknown_unknown.rs +++ b/compiler/rustc_target/src/spec/targets/wasm32_unknown_unknown.rs @@ -37,7 +37,7 @@ pub(crate) fn target() -> Target { std: Some(true), }, pointer_width: 32, - data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(), + data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-i128:128-n32:64-S128-ni:1:10:20".into(), arch: "wasm32".into(), options, } diff --git a/compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs b/compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs index 1cd30f21bec..0862958d05d 100644 --- a/compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs +++ b/compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs @@ -55,7 +55,7 @@ pub(crate) fn target() -> Target { std: Some(true), }, pointer_width: 32, - data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(), + data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-i128:128-n32:64-S128-ni:1:10:20".into(), arch: "wasm32".into(), options, } diff --git a/compiler/rustc_target/src/spec/targets/wasm32_wasip1_threads.rs b/compiler/rustc_target/src/spec/targets/wasm32_wasip1_threads.rs index 19bc5db4d9b..0c2e2bfeda6 100644 --- a/compiler/rustc_target/src/spec/targets/wasm32_wasip1_threads.rs +++ b/compiler/rustc_target/src/spec/targets/wasm32_wasip1_threads.rs @@ -66,7 +66,7 @@ pub(crate) fn target() -> Target { std: Some(true), }, pointer_width: 32, - data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(), + data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-i128:128-n32:64-S128-ni:1:10:20".into(), arch: "wasm32".into(), options, } diff --git a/compiler/rustc_target/src/spec/targets/wasm32_wasip2.rs b/compiler/rustc_target/src/spec/targets/wasm32_wasip2.rs index f06112160d1..3f4618fad5a 100644 --- a/compiler/rustc_target/src/spec/targets/wasm32_wasip2.rs +++ b/compiler/rustc_target/src/spec/targets/wasm32_wasip2.rs @@ -66,7 +66,7 @@ pub(crate) fn target() -> Target { std: Some(true), }, pointer_width: 32, - data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(), + data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-i128:128-n32:64-S128-ni:1:10:20".into(), arch: "wasm32".into(), options, } diff --git a/compiler/rustc_target/src/spec/targets/wasm32v1_none.rs b/compiler/rustc_target/src/spec/targets/wasm32v1_none.rs index bf35ae009c6..5c35e9c21d3 100644 --- a/compiler/rustc_target/src/spec/targets/wasm32v1_none.rs +++ b/compiler/rustc_target/src/spec/targets/wasm32v1_none.rs @@ -44,7 +44,7 @@ pub(crate) fn target() -> Target { std: Some(false), }, pointer_width: 32, - data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(), + data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-i128:128-n32:64-S128-ni:1:10:20".into(), arch: "wasm32".into(), options, } diff --git a/compiler/rustc_target/src/spec/targets/wasm64_unknown_unknown.rs b/compiler/rustc_target/src/spec/targets/wasm64_unknown_unknown.rs index 5ba0fca9f64..22fa26d3cdb 100644 --- a/compiler/rustc_target/src/spec/targets/wasm64_unknown_unknown.rs +++ b/compiler/rustc_target/src/spec/targets/wasm64_unknown_unknown.rs @@ -40,7 +40,7 @@ pub(crate) fn target() -> Target { std: None, // ? }, pointer_width: 64, - data_layout: "e-m:e-p:64:64-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(), + data_layout: "e-m:e-p:64:64-p10:8:8-p20:8:8-i64:64-i128:128-n32:64-S128-ni:1:10:20".into(), arch: "wasm64".into(), options, } -- cgit 1.4.1-3-g733a5 From 2d887a5c5ca65287bb40dc5b2d108e2bb2dd6719 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sat, 16 Nov 2024 10:00:16 +0100 Subject: generalize 'forbidden feature' concept so that even (un)stable feature can be invalid to toggle Also rename some things for extra clarity --- compiler/rustc_codegen_cranelift/src/lib.rs | 6 +- compiler/rustc_codegen_gcc/messages.ftl | 2 +- compiler/rustc_codegen_gcc/src/errors.rs | 1 + compiler/rustc_codegen_gcc/src/gcc_util.rs | 18 +- compiler/rustc_codegen_gcc/src/lib.rs | 11 +- compiler/rustc_codegen_llvm/src/lib.rs | 6 +- compiler/rustc_codegen_llvm/src/llvm_util.rs | 28 +- compiler/rustc_codegen_ssa/src/target_features.rs | 53 +- compiler/rustc_codegen_ssa/src/traits/backend.rs | 4 +- compiler/rustc_interface/src/util.rs | 4 +- compiler/rustc_middle/src/query/mod.rs | 2 +- compiler/rustc_session/src/config/cfg.rs | 2 +- compiler/rustc_target/src/target_features.rs | 732 ++++++++++++---------- 13 files changed, 468 insertions(+), 401 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_cranelift/src/lib.rs b/compiler/rustc_codegen_cranelift/src/lib.rs index 9f552b3feb9..75f5b32daaa 100644 --- a/compiler/rustc_codegen_cranelift/src/lib.rs +++ b/compiler/rustc_codegen_cranelift/src/lib.rs @@ -175,7 +175,11 @@ impl CodegenBackend for CraneliftCodegenBackend { } } - fn target_features(&self, sess: &Session, _allow_unstable: bool) -> Vec { + fn target_features_cfg( + &self, + sess: &Session, + _allow_unstable: bool, + ) -> Vec { // FIXME return the actually used target features. this is necessary for #[cfg(target_feature)] if sess.target.arch == "x86_64" && sess.target.os != "none" { // x86_64 mandates SSE2 support diff --git a/compiler/rustc_codegen_gcc/messages.ftl b/compiler/rustc_codegen_gcc/messages.ftl index 26ddc5732dd..85fa17a6ba5 100644 --- a/compiler/rustc_codegen_gcc/messages.ftl +++ b/compiler/rustc_codegen_gcc/messages.ftl @@ -9,7 +9,7 @@ codegen_gcc_lto_not_supported = LTO is not supported. You may get a linker error. codegen_gcc_forbidden_ctarget_feature = - target feature `{$feature}` cannot be toggled with `-Ctarget-feature` + target feature `{$feature}` cannot be toggled with `-Ctarget-feature`: {$reason} codegen_gcc_unwinding_inline_asm = GCC backend does not support unwinding from inline asm diff --git a/compiler/rustc_codegen_gcc/src/errors.rs b/compiler/rustc_codegen_gcc/src/errors.rs index 7a586b5b04c..56849cc8610 100644 --- a/compiler/rustc_codegen_gcc/src/errors.rs +++ b/compiler/rustc_codegen_gcc/src/errors.rs @@ -28,6 +28,7 @@ pub(crate) struct UnstableCTargetFeature<'a> { #[diag(codegen_gcc_forbidden_ctarget_feature)] pub(crate) struct ForbiddenCTargetFeature<'a> { pub feature: &'a str, + pub reason: &'a str, } #[derive(Subdiagnostic)] diff --git a/compiler/rustc_codegen_gcc/src/gcc_util.rs b/compiler/rustc_codegen_gcc/src/gcc_util.rs index 65279c9495a..3717e12020f 100644 --- a/compiler/rustc_codegen_gcc/src/gcc_util.rs +++ b/compiler/rustc_codegen_gcc/src/gcc_util.rs @@ -5,7 +5,7 @@ use rustc_codegen_ssa::errors::TargetFeatureDisableOrEnable; use rustc_data_structures::fx::FxHashMap; use rustc_middle::bug; use rustc_session::Session; -use rustc_target::target_features::{RUSTC_SPECIFIC_FEATURES, Stability}; +use rustc_target::target_features::RUSTC_SPECIFIC_FEATURES; use smallvec::{SmallVec, smallvec}; use crate::errors::{ @@ -94,13 +94,15 @@ pub(crate) fn global_gcc_features(sess: &Session, diagnostics: bool) -> Vec {} - Some((_, Stability::Unstable(_), _)) => { - // An unstable feature. Warn about using it. - sess.dcx().emit_warn(UnstableCTargetFeature { feature }); - } - Some((_, Stability::Forbidden { .. }, _)) => { - sess.dcx().emit_err(ForbiddenCTargetFeature { feature }); + Some((_, stability, _)) => { + if let Err(reason) = stability.compute(&sess.target).allow_toggle() { + sess.dcx().emit_warn(ForbiddenCTargetFeature { feature, reason }); + } else if stability.requires_nightly().is_some() { + // An unstable feature. Warn about using it. (It makes little sense + // to hard-error here since we just warn about fully unknown + // features above). + sess.dcx().emit_warn(UnstableCTargetFeature { feature }); + } } } diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs index 452e92bffa2..764e84be1fe 100644 --- a/compiler/rustc_codegen_gcc/src/lib.rs +++ b/compiler/rustc_codegen_gcc/src/lib.rs @@ -260,8 +260,8 @@ impl CodegenBackend for GccCodegenBackend { .join(sess) } - fn target_features(&self, sess: &Session, allow_unstable: bool) -> Vec { - target_features(sess, allow_unstable, &self.target_info) + fn target_features_cfg(&self, sess: &Session, allow_unstable: bool) -> Vec { + target_features_cfg(sess, allow_unstable, &self.target_info) } } @@ -472,7 +472,8 @@ fn to_gcc_opt_level(optlevel: Option) -> OptimizationLevel { } } -pub fn target_features( +/// Returns the features that should be set in `cfg(target_feature)`. +fn target_features_cfg( sess: &Session, allow_unstable: bool, target_info: &LockedTargetInfo, @@ -481,9 +482,9 @@ pub fn target_features( sess.target .rust_target_features() .iter() - .filter(|(_, gate, _)| gate.is_supported()) + .filter(|(_, gate, _)| gate.in_cfg()) .filter_map(|&(feature, gate, _)| { - if sess.is_nightly_build() || allow_unstable || gate.is_stable() { + if sess.is_nightly_build() || allow_unstable || gate.requires_nightly().is_none() { Some(feature) } else { None diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs index 5235891a18d..af8562db054 100644 --- a/compiler/rustc_codegen_llvm/src/lib.rs +++ b/compiler/rustc_codegen_llvm/src/lib.rs @@ -27,7 +27,7 @@ use std::mem::ManuallyDrop; use back::owned_target_machine::OwnedTargetMachine; use back::write::{create_informational_target_machine, create_target_machine}; use errors::ParseTargetMachineConfig; -pub use llvm_util::target_features; +pub use llvm_util::target_features_cfg; use rustc_ast::expand::allocator::AllocatorKind; use rustc_codegen_ssa::back::lto::{LtoModuleCodegen, SerializedModule, ThinModule}; use rustc_codegen_ssa::back::write::{ @@ -330,8 +330,8 @@ impl CodegenBackend for LlvmCodegenBackend { llvm_util::print_version(); } - fn target_features(&self, sess: &Session, allow_unstable: bool) -> Vec { - target_features(sess, allow_unstable) + fn target_features_cfg(&self, sess: &Session, allow_unstable: bool) -> Vec { + target_features_cfg(sess, allow_unstable) } fn codegen_crate<'tcx>( diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs index 07eb89e6041..3f53856f98d 100644 --- a/compiler/rustc_codegen_llvm/src/llvm_util.rs +++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs @@ -17,7 +17,7 @@ use rustc_session::Session; use rustc_session::config::{PrintKind, PrintRequest}; use rustc_span::symbol::Symbol; use rustc_target::spec::{MergeFunctions, PanicStrategy, SmallDataThresholdSupport}; -use rustc_target::target_features::{RUSTC_SPECIAL_FEATURES, RUSTC_SPECIFIC_FEATURES, Stability}; +use rustc_target::target_features::{RUSTC_SPECIAL_FEATURES, RUSTC_SPECIFIC_FEATURES}; use crate::back::write::create_informational_target_machine; use crate::errors::{ @@ -300,7 +300,7 @@ pub(crate) fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> Option Vec { +pub fn target_features_cfg(sess: &Session, allow_unstable: bool) -> Vec { let mut features: FxHashSet = Default::default(); // Add base features for the target. @@ -316,7 +316,7 @@ pub fn target_features(sess: &Session, allow_unstable: bool) -> Vec { sess.target .rust_target_features() .iter() - .filter(|(_, gate, _)| gate.is_supported()) + .filter(|(_, gate, _)| gate.in_cfg()) .filter(|(feature, _, _)| { // skip checking special features, as LLVM may not understand them if RUSTC_SPECIAL_FEATURES.contains(feature) { @@ -372,9 +372,9 @@ pub fn target_features(sess: &Session, allow_unstable: bool) -> Vec { sess.target .rust_target_features() .iter() - .filter(|(_, gate, _)| gate.is_supported()) + .filter(|(_, gate, _)| gate.in_cfg()) .filter_map(|&(feature, gate, _)| { - if sess.is_nightly_build() || allow_unstable || gate.is_stable() { + if sess.is_nightly_build() || allow_unstable || gate.requires_nightly().is_none() { Some(feature) } else { None @@ -493,7 +493,7 @@ fn print_target_features(sess: &Session, tm: &llvm::TargetMachine, out: &mut Str .rust_target_features() .iter() .filter_map(|(feature, gate, _implied)| { - if !gate.is_supported() { + if !gate.in_cfg() { // Only list (experimentally) supported features. return None; } @@ -716,13 +716,15 @@ pub(crate) fn global_llvm_features( }; sess.dcx().emit_warn(unknown_feature); } - Some((_, Stability::Stable, _)) => {} - Some((_, Stability::Unstable(_), _)) => { - // An unstable feature. Warn about using it. - sess.dcx().emit_warn(UnstableCTargetFeature { feature }); - } - Some((_, Stability::Forbidden { reason }, _)) => { - sess.dcx().emit_warn(ForbiddenCTargetFeature { feature, reason }); + Some((_, stability, _)) => { + if let Err(reason) = stability.compute(&sess.target).allow_toggle() { + sess.dcx().emit_warn(ForbiddenCTargetFeature { feature, reason }); + } else if stability.requires_nightly().is_some() { + // An unstable feature. Warn about using it. (It makes little sense + // to hard-error here since we just warn about fully unknown + // features above). + sess.dcx().emit_warn(UnstableCTargetFeature { feature }); + } } } diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs index eee7cc75400..b3057325bd6 100644 --- a/compiler/rustc_codegen_ssa/src/target_features.rs +++ b/compiler/rustc_codegen_ssa/src/target_features.rs @@ -11,7 +11,7 @@ use rustc_middle::ty::TyCtxt; use rustc_session::parse::feature_err; use rustc_span::Span; use rustc_span::symbol::{Symbol, sym}; -use rustc_target::target_features::{self, Stability}; +use rustc_target::target_features; use crate::errors; @@ -20,7 +20,7 @@ use crate::errors; pub(crate) fn from_target_feature_attr( tcx: TyCtxt<'_>, attr: &ast::Attribute, - rust_target_features: &UnordMap, + rust_target_features: &UnordMap, target_features: &mut Vec, ) { let Some(list) = attr.meta_item_list() else { return }; @@ -63,32 +63,24 @@ pub(crate) fn from_target_feature_attr( return None; }; - // Only allow target features whose feature gates have been enabled. - let allowed = match stability { - Stability::Forbidden { .. } => false, - Stability::Stable => true, - Stability::Unstable(name) => rust_features.enabled(*name), - }; - if !allowed { - match stability { - Stability::Stable => unreachable!(), - &Stability::Unstable(lang_feature_name) => { - feature_err( - &tcx.sess, - lang_feature_name, - item.span(), - format!("the target feature `{feature}` is currently unstable"), - ) - .emit(); - } - Stability::Forbidden { reason } => { - tcx.dcx().emit_err(errors::ForbiddenTargetFeatureAttr { - span: item.span(), - feature, - reason, - }); - } - } + // Only allow target features whose feature gates have been enabled + // and which are permitted to be toggled. + if let Err(reason) = stability.allow_toggle() { + tcx.dcx().emit_err(errors::ForbiddenTargetFeatureAttr { + span: item.span(), + feature, + reason, + }); + } else if let Some(nightly_feature) = stability.requires_nightly() + && !rust_features.enabled(nightly_feature) + { + feature_err( + &tcx.sess, + nightly_feature, + item.span(), + format!("the target feature `{feature}` is currently unstable"), + ) + .emit(); } Some(Symbol::intern(feature)) })); @@ -156,18 +148,19 @@ pub(crate) fn provide(providers: &mut Providers) { *providers = Providers { rust_target_features: |tcx, cnum| { assert_eq!(cnum, LOCAL_CRATE); + let target = &tcx.sess.target; if tcx.sess.opts.actually_rustdoc { // rustdoc needs to be able to document functions that use all the features, so // whitelist them all rustc_target::target_features::all_rust_features() - .map(|(a, b)| (a.to_string(), b)) + .map(|(a, b)| (a.to_string(), b.compute(target))) .collect() } else { tcx.sess .target .rust_target_features() .iter() - .map(|&(a, b, _)| (a.to_string(), b)) + .map(|&(a, b, _)| (a.to_string(), b.compute(target))) .collect() } }, diff --git a/compiler/rustc_codegen_ssa/src/traits/backend.rs b/compiler/rustc_codegen_ssa/src/traits/backend.rs index 5b4a51fc301..4b17db2c49e 100644 --- a/compiler/rustc_codegen_ssa/src/traits/backend.rs +++ b/compiler/rustc_codegen_ssa/src/traits/backend.rs @@ -45,7 +45,9 @@ pub trait CodegenBackend { fn print(&self, _req: &PrintRequest, _out: &mut String, _sess: &Session) {} - fn target_features(&self, _sess: &Session, _allow_unstable: bool) -> Vec { + /// Returns the features that should be set in `cfg(target_features)`. + /// RUSTC_SPECIFIC_FEATURES should be skipped here, those are handled outside codegen. + fn target_features_cfg(&self, _sess: &Session, _allow_unstable: bool) -> Vec { vec![] } diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs index d3213b1263c..2af25bfd3aa 100644 --- a/compiler/rustc_interface/src/util.rs +++ b/compiler/rustc_interface/src/util.rs @@ -35,10 +35,10 @@ pub type MakeBackendFn = fn() -> Box; pub fn add_configuration(cfg: &mut Cfg, sess: &mut Session, codegen_backend: &dyn CodegenBackend) { let tf = sym::target_feature; - let unstable_target_features = codegen_backend.target_features(sess, true); + let unstable_target_features = codegen_backend.target_features_cfg(sess, true); sess.unstable_target_features.extend(unstable_target_features.iter().cloned()); - let target_features = codegen_backend.target_features(sess, false); + let target_features = codegen_backend.target_features_cfg(sess, false); sess.target_features.extend(target_features.iter().cloned()); cfg.extend(target_features.into_iter().map(|feat| (tf, Some(feat)))); diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index fc3d690a8a9..b1ffae2adee 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -2230,7 +2230,7 @@ rustc_queries! { } /// Returns the Rust target features for the current target. These are not always the same as LLVM target features! - query rust_target_features(_: CrateNum) -> &'tcx UnordMap { + query rust_target_features(_: CrateNum) -> &'tcx UnordMap { arena_cache eval_always desc { "looking up Rust target features" } diff --git a/compiler/rustc_session/src/config/cfg.rs b/compiler/rustc_session/src/config/cfg.rs index 99d9d5b7665..43cf1324edd 100644 --- a/compiler/rustc_session/src/config/cfg.rs +++ b/compiler/rustc_session/src/config/cfg.rs @@ -371,7 +371,7 @@ impl CheckCfg { ins!(sym::target_feature, empty_values).extend( rustc_target::target_features::all_rust_features() - .filter(|(_, s)| s.is_supported()) + .filter(|(_, s)| s.in_cfg()) .map(|(f, _s)| f) .chain(rustc_target::target_features::RUSTC_SPECIFIC_FEATURES.iter().cloned()) .map(Symbol::intern), diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index 3a130607265..717e64fe6c8 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -5,6 +5,8 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; use rustc_span::symbol::{Symbol, sym}; +use crate::spec::Target; + /// Features that control behaviour of rustc, rather than the codegen. /// These exist globally and are not in the target-specific lists below. pub const RUSTC_SPECIFIC_FEATURES: &[&str] = &["crt-static"]; @@ -15,45 +17,103 @@ pub const RUSTC_SPECIFIC_FEATURES: &[&str] = &["crt-static"]; pub const RUSTC_SPECIAL_FEATURES: &[&str] = &["backchain"]; /// Stability information for target features. +/// `AllowToggle` is the type storing whether (un)stable features can be toggled: +/// this is initially a function since it can depend on `Target`, but for stable hashing +/// it needs to be something hashable to we have to make the type generic. #[derive(Debug, Clone, Copy)] -pub enum Stability { +pub enum Stability { /// This target feature is stable, it can be used in `#[target_feature]` and /// `#[cfg(target_feature)]`. - Stable, - /// This target feature is unstable; using it in `#[target_feature]` or `#[cfg(target_feature)]` - /// requires enabling the given nightly feature. - Unstable(Symbol), - /// This feature can not be set via `-Ctarget-feature` or `#[target_feature]`, it can only be set in the basic - /// target definition. Used in particular for features that change the floating-point ABI. + Stable { + /// When enabling/dsiabling the feature via `-Ctarget-feature` or `#[target_feature]`, + /// determine if that is allowed. + allow_toggle: AllowToggle, + }, + /// This target feature is unstable. It is only present in `#[cfg(target_feature)]` on + /// nightly and using it in `#[target_feature]` requires enabling the given nightly feature. + Unstable { + nightly_feature: Symbol, + /// See `Stable::allow_toggle` comment above. + allow_toggle: AllowToggle, + }, + /// This feature can not be set via `-Ctarget-feature` or `#[target_feature]`, it can only be + /// set in the basic target definition. It is never set in `cfg(target_feature)`. Used in + /// particular for features that change the floating-point ABI. Forbidden { reason: &'static str }, } -use Stability::*; -impl HashStable for Stability { +/// `Stability` where `allow_toggle` has not been computed yet. +/// Returns `Ok` if the toggle is allowed, `Err` with an explanation of not. +pub type StabilityUncomputed = Stability Result<(), &'static str>>; +/// `Stability` where `allow_toggle` has already been computed. +pub type StabilityComputed = Stability>; + +impl> HashStable for Stability { #[inline] fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { std::mem::discriminant(self).hash_stable(hcx, hasher); match self { - Stable => {} - Unstable(sym) => { - sym.hash_stable(hcx, hasher); + Stability::Stable { allow_toggle } => { + allow_toggle.hash_stable(hcx, hasher); + } + Stability::Unstable { nightly_feature, allow_toggle } => { + nightly_feature.hash_stable(hcx, hasher); + allow_toggle.hash_stable(hcx, hasher); } - Forbidden { .. } => {} + Stability::Forbidden { reason } => { + reason.hash_stable(hcx, hasher); + } + } + } +} + +impl Stability { + /// Returns whether the feature can be queried in `cfg` ever. + /// (It might still be nightly-only even if this returns `true`). + pub fn in_cfg(self) -> bool { + !matches!(self, Stability::Forbidden { .. }) + } + + /// Returns the nightly feature that is required to toggle or query this target feature. Ensure + /// to also check `allow_toggle()` before allowing to toggle! + pub fn requires_nightly(self) -> Option { + match self { + Stability::Unstable { nightly_feature, .. } => Some(nightly_feature), + Stability::Stable { .. } => None, + Stability::Forbidden { .. } => panic!("forbidden features should not reach this far"), } } } -impl Stability { - pub fn is_stable(self) -> bool { - matches!(self, Stable) +impl StabilityUncomputed { + pub fn compute(self, target: &Target) -> StabilityComputed { + use Stability::*; + match self { + Stable { allow_toggle } => Stable { allow_toggle: allow_toggle(target) }, + Unstable { nightly_feature, allow_toggle } => { + Unstable { nightly_feature, allow_toggle: allow_toggle(target) } + } + Forbidden { reason } => Forbidden { reason }, + } } +} - /// Forbidden features are not supported. - pub fn is_supported(self) -> bool { - !matches!(self, Forbidden { .. }) +impl StabilityComputed { + pub fn allow_toggle(self) -> Result<(), &'static str> { + match self { + Stability::Stable { allow_toggle } => allow_toggle, + Stability::Unstable { allow_toggle, .. } => allow_toggle, + Stability::Forbidden { reason } => Err(reason), + } } } +// Constructors for the list below, defaulting to "always allow toggle". +const STABLE: StabilityUncomputed = Stability::Stable { allow_toggle: |_target| Ok(()) }; +const fn unstable(nightly_feature: Symbol) -> StabilityUncomputed { + Stability::Unstable { nightly_feature, allow_toggle: |_target| Ok(()) } +} + // Here we list target features that rustc "understands": they can be used in `#[target_feature]` // and `#[cfg(target_feature)]`. They also do not trigger any warnings when used with // `-Ctarget-feature`. @@ -99,181 +159,181 @@ impl Stability { // Both of these are also applied transitively. type ImpliedFeatures = &'static [&'static str]; -const ARM_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const ARM_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("aclass", Unstable(sym::arm_target_feature), &[]), - ("aes", Unstable(sym::arm_target_feature), &["neon"]), - ("crc", Unstable(sym::arm_target_feature), &[]), - ("d32", Unstable(sym::arm_target_feature), &[]), - ("dotprod", Unstable(sym::arm_target_feature), &["neon"]), - ("dsp", Unstable(sym::arm_target_feature), &[]), - ("fp-armv8", Unstable(sym::arm_target_feature), &["vfp4"]), - ("i8mm", Unstable(sym::arm_target_feature), &["neon"]), - ("mclass", Unstable(sym::arm_target_feature), &[]), - ("neon", Unstable(sym::arm_target_feature), &["vfp3"]), - ("rclass", Unstable(sym::arm_target_feature), &[]), - ("sha2", Unstable(sym::arm_target_feature), &["neon"]), - ("soft-float", Forbidden { reason: "unsound because it changes float ABI" }, &[]), + ("aclass", unstable(sym::arm_target_feature), &[]), + ("aes", unstable(sym::arm_target_feature), &["neon"]), + ("crc", unstable(sym::arm_target_feature), &[]), + ("d32", unstable(sym::arm_target_feature), &[]), + ("dotprod", unstable(sym::arm_target_feature), &["neon"]), + ("dsp", unstable(sym::arm_target_feature), &[]), + ("fp-armv8", unstable(sym::arm_target_feature), &["vfp4"]), + ("i8mm", unstable(sym::arm_target_feature), &["neon"]), + ("mclass", unstable(sym::arm_target_feature), &[]), + ("neon", unstable(sym::arm_target_feature), &["vfp3"]), + ("rclass", unstable(sym::arm_target_feature), &[]), + ("sha2", unstable(sym::arm_target_feature), &["neon"]), + ("soft-float", Stability::Forbidden { reason: "unsound because it changes float ABI" }, &[]), // This is needed for inline assembly, but shouldn't be stabilized as-is // since it should be enabled per-function using #[instruction_set], not // #[target_feature]. - ("thumb-mode", Unstable(sym::arm_target_feature), &[]), - ("thumb2", Unstable(sym::arm_target_feature), &[]), - ("trustzone", Unstable(sym::arm_target_feature), &[]), - ("v5te", Unstable(sym::arm_target_feature), &[]), - ("v6", Unstable(sym::arm_target_feature), &["v5te"]), - ("v6k", Unstable(sym::arm_target_feature), &["v6"]), - ("v6t2", Unstable(sym::arm_target_feature), &["v6k", "thumb2"]), - ("v7", Unstable(sym::arm_target_feature), &["v6t2"]), - ("v8", Unstable(sym::arm_target_feature), &["v7"]), - ("vfp2", Unstable(sym::arm_target_feature), &[]), - ("vfp3", Unstable(sym::arm_target_feature), &["vfp2", "d32"]), - ("vfp4", Unstable(sym::arm_target_feature), &["vfp3"]), - ("virtualization", Unstable(sym::arm_target_feature), &[]), + ("thumb-mode", unstable(sym::arm_target_feature), &[]), + ("thumb2", unstable(sym::arm_target_feature), &[]), + ("trustzone", unstable(sym::arm_target_feature), &[]), + ("v5te", unstable(sym::arm_target_feature), &[]), + ("v6", unstable(sym::arm_target_feature), &["v5te"]), + ("v6k", unstable(sym::arm_target_feature), &["v6"]), + ("v6t2", unstable(sym::arm_target_feature), &["v6k", "thumb2"]), + ("v7", unstable(sym::arm_target_feature), &["v6t2"]), + ("v8", unstable(sym::arm_target_feature), &["v7"]), + ("vfp2", unstable(sym::arm_target_feature), &[]), + ("vfp3", unstable(sym::arm_target_feature), &["vfp2", "d32"]), + ("vfp4", unstable(sym::arm_target_feature), &["vfp3"]), + ("virtualization", unstable(sym::arm_target_feature), &[]), // tidy-alphabetical-end // FIXME: need to also forbid turning off `fpregs` on hardfloat targets ]; -const AARCH64_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const AARCH64_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start // FEAT_AES & FEAT_PMULL - ("aes", Stable, &["neon"]), + ("aes", STABLE, &["neon"]), // FEAT_BF16 - ("bf16", Stable, &[]), + ("bf16", STABLE, &[]), // FEAT_BTI - ("bti", Stable, &[]), + ("bti", STABLE, &[]), // FEAT_CRC - ("crc", Stable, &[]), + ("crc", STABLE, &[]), // FEAT_CSSC - ("cssc", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("cssc", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_DIT - ("dit", Stable, &[]), + ("dit", STABLE, &[]), // FEAT_DotProd - ("dotprod", Stable, &["neon"]), + ("dotprod", STABLE, &["neon"]), // FEAT_DPB - ("dpb", Stable, &[]), + ("dpb", STABLE, &[]), // FEAT_DPB2 - ("dpb2", Stable, &["dpb"]), + ("dpb2", STABLE, &["dpb"]), // FEAT_ECV - ("ecv", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("ecv", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_F32MM - ("f32mm", Stable, &["sve"]), + ("f32mm", STABLE, &["sve"]), // FEAT_F64MM - ("f64mm", Stable, &["sve"]), + ("f64mm", STABLE, &["sve"]), // FEAT_FAMINMAX - ("faminmax", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("faminmax", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_FCMA - ("fcma", Stable, &["neon"]), + ("fcma", STABLE, &["neon"]), // FEAT_FHM - ("fhm", Stable, &["fp16"]), + ("fhm", STABLE, &["fp16"]), // FEAT_FLAGM - ("flagm", Stable, &[]), + ("flagm", STABLE, &[]), // FEAT_FLAGM2 - ("flagm2", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("flagm2", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_FP16 // Rust ties FP and Neon: https://github.com/rust-lang/rust/pull/91608 - ("fp16", Stable, &["neon"]), + ("fp16", STABLE, &["neon"]), // FEAT_FP8 - ("fp8", Unstable(sym::aarch64_unstable_target_feature), &["faminmax", "lut", "bf16"]), + ("fp8", unstable(sym::aarch64_unstable_target_feature), &["faminmax", "lut", "bf16"]), // FEAT_FP8DOT2 - ("fp8dot2", Unstable(sym::aarch64_unstable_target_feature), &["fp8dot4"]), + ("fp8dot2", unstable(sym::aarch64_unstable_target_feature), &["fp8dot4"]), // FEAT_FP8DOT4 - ("fp8dot4", Unstable(sym::aarch64_unstable_target_feature), &["fp8fma"]), + ("fp8dot4", unstable(sym::aarch64_unstable_target_feature), &["fp8fma"]), // FEAT_FP8FMA - ("fp8fma", Unstable(sym::aarch64_unstable_target_feature), &["fp8"]), + ("fp8fma", unstable(sym::aarch64_unstable_target_feature), &["fp8"]), // FEAT_FRINTTS - ("frintts", Stable, &[]), + ("frintts", STABLE, &[]), // FEAT_HBC - ("hbc", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("hbc", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_I8MM - ("i8mm", Stable, &[]), + ("i8mm", STABLE, &[]), // FEAT_JSCVT // Rust ties FP and Neon: https://github.com/rust-lang/rust/pull/91608 - ("jsconv", Stable, &["neon"]), + ("jsconv", STABLE, &["neon"]), // FEAT_LOR - ("lor", Stable, &[]), + ("lor", STABLE, &[]), // FEAT_LSE - ("lse", Stable, &[]), + ("lse", STABLE, &[]), // FEAT_LSE128 - ("lse128", Unstable(sym::aarch64_unstable_target_feature), &["lse"]), + ("lse128", unstable(sym::aarch64_unstable_target_feature), &["lse"]), // FEAT_LSE2 - ("lse2", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("lse2", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_LUT - ("lut", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("lut", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_MOPS - ("mops", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("mops", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_MTE & FEAT_MTE2 - ("mte", Stable, &[]), + ("mte", STABLE, &[]), // FEAT_AdvSimd & FEAT_FP - ("neon", Stable, &[]), + ("neon", STABLE, &[]), // FEAT_PAUTH (address authentication) - ("paca", Stable, &[]), + ("paca", STABLE, &[]), // FEAT_PAUTH (generic authentication) - ("pacg", Stable, &[]), + ("pacg", STABLE, &[]), // FEAT_PAN - ("pan", Stable, &[]), + ("pan", STABLE, &[]), // FEAT_PAuth_LR - ("pauth-lr", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("pauth-lr", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_PMUv3 - ("pmuv3", Stable, &[]), + ("pmuv3", STABLE, &[]), // FEAT_RNG - ("rand", Stable, &[]), + ("rand", STABLE, &[]), // FEAT_RAS & FEAT_RASv1p1 - ("ras", Stable, &[]), + ("ras", STABLE, &[]), // FEAT_LRCPC - ("rcpc", Stable, &[]), + ("rcpc", STABLE, &[]), // FEAT_LRCPC2 - ("rcpc2", Stable, &["rcpc"]), + ("rcpc2", STABLE, &["rcpc"]), // FEAT_LRCPC3 - ("rcpc3", Unstable(sym::aarch64_unstable_target_feature), &["rcpc2"]), + ("rcpc3", unstable(sym::aarch64_unstable_target_feature), &["rcpc2"]), // FEAT_RDM - ("rdm", Stable, &["neon"]), + ("rdm", STABLE, &["neon"]), // This is needed for inline assembly, but shouldn't be stabilized as-is // since it should be enabled globally using -Zfixed-x18, not // #[target_feature]. // Note that cfg(target_feature = "reserve-x18") is currently not set for // targets that reserve x18 by default. - ("reserve-x18", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("reserve-x18", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_SB - ("sb", Stable, &[]), + ("sb", STABLE, &[]), // FEAT_SHA1 & FEAT_SHA256 - ("sha2", Stable, &["neon"]), + ("sha2", STABLE, &["neon"]), // FEAT_SHA512 & FEAT_SHA3 - ("sha3", Stable, &["sha2"]), + ("sha3", STABLE, &["sha2"]), // FEAT_SM3 & FEAT_SM4 - ("sm4", Stable, &["neon"]), + ("sm4", STABLE, &["neon"]), // FEAT_SME - ("sme", Unstable(sym::aarch64_unstable_target_feature), &["bf16"]), + ("sme", unstable(sym::aarch64_unstable_target_feature), &["bf16"]), // FEAT_SME_B16B16 - ("sme-b16b16", Unstable(sym::aarch64_unstable_target_feature), &["bf16", "sme2", "sve-b16b16"]), + ("sme-b16b16", unstable(sym::aarch64_unstable_target_feature), &["bf16", "sme2", "sve-b16b16"]), // FEAT_SME_F16F16 - ("sme-f16f16", Unstable(sym::aarch64_unstable_target_feature), &["sme2"]), + ("sme-f16f16", unstable(sym::aarch64_unstable_target_feature), &["sme2"]), // FEAT_SME_F64F64 - ("sme-f64f64", Unstable(sym::aarch64_unstable_target_feature), &["sme"]), + ("sme-f64f64", unstable(sym::aarch64_unstable_target_feature), &["sme"]), // FEAT_SME_F8F16 - ("sme-f8f16", Unstable(sym::aarch64_unstable_target_feature), &["sme-f8f32"]), + ("sme-f8f16", unstable(sym::aarch64_unstable_target_feature), &["sme-f8f32"]), // FEAT_SME_F8F32 - ("sme-f8f32", Unstable(sym::aarch64_unstable_target_feature), &["sme2", "fp8"]), + ("sme-f8f32", unstable(sym::aarch64_unstable_target_feature), &["sme2", "fp8"]), // FEAT_SME_FA64 - ("sme-fa64", Unstable(sym::aarch64_unstable_target_feature), &["sme", "sve2"]), + ("sme-fa64", unstable(sym::aarch64_unstable_target_feature), &["sme", "sve2"]), // FEAT_SME_I16I64 - ("sme-i16i64", Unstable(sym::aarch64_unstable_target_feature), &["sme"]), + ("sme-i16i64", unstable(sym::aarch64_unstable_target_feature), &["sme"]), // FEAT_SME_LUTv2 - ("sme-lutv2", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("sme-lutv2", unstable(sym::aarch64_unstable_target_feature), &[]), // FEAT_SME2 - ("sme2", Unstable(sym::aarch64_unstable_target_feature), &["sme"]), + ("sme2", unstable(sym::aarch64_unstable_target_feature), &["sme"]), // FEAT_SME2p1 - ("sme2p1", Unstable(sym::aarch64_unstable_target_feature), &["sme2"]), + ("sme2p1", unstable(sym::aarch64_unstable_target_feature), &["sme2"]), // FEAT_SPE - ("spe", Stable, &[]), + ("spe", STABLE, &[]), // FEAT_SSBS & FEAT_SSBS2 - ("ssbs", Stable, &[]), + ("ssbs", STABLE, &[]), // FEAT_SSVE_FP8FDOT2 - ("ssve-fp8dot2", Unstable(sym::aarch64_unstable_target_feature), &["ssve-fp8dot4"]), + ("ssve-fp8dot2", unstable(sym::aarch64_unstable_target_feature), &["ssve-fp8dot4"]), // FEAT_SSVE_FP8FDOT4 - ("ssve-fp8dot4", Unstable(sym::aarch64_unstable_target_feature), &["ssve-fp8fma"]), + ("ssve-fp8dot4", unstable(sym::aarch64_unstable_target_feature), &["ssve-fp8fma"]), // FEAT_SSVE_FP8FMA - ("ssve-fp8fma", Unstable(sym::aarch64_unstable_target_feature), &["sme2", "fp8"]), + ("ssve-fp8fma", unstable(sym::aarch64_unstable_target_feature), &["sme2", "fp8"]), // FEAT_SVE // It was decided that SVE requires Neon: https://github.com/rust-lang/rust/pull/91608 // @@ -281,46 +341,46 @@ const AARCH64_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ // exist together: https://developer.arm.com/documentation/102340/0100/New-features-in-SVE2 // // "For backwards compatibility, Neon and VFP are required in the latest architectures." - ("sve", Stable, &["neon"]), + ("sve", STABLE, &["neon"]), // FEAT_SVE_B16B16 (SVE or SME Z-targeting instructions) - ("sve-b16b16", Unstable(sym::aarch64_unstable_target_feature), &["bf16"]), + ("sve-b16b16", unstable(sym::aarch64_unstable_target_feature), &["bf16"]), // FEAT_SVE2 - ("sve2", Stable, &["sve"]), + ("sve2", STABLE, &["sve"]), // FEAT_SVE_AES & FEAT_SVE_PMULL128 - ("sve2-aes", Stable, &["sve2", "aes"]), + ("sve2-aes", STABLE, &["sve2", "aes"]), // FEAT_SVE2_BitPerm - ("sve2-bitperm", Stable, &["sve2"]), + ("sve2-bitperm", STABLE, &["sve2"]), // FEAT_SVE2_SHA3 - ("sve2-sha3", Stable, &["sve2", "sha3"]), + ("sve2-sha3", STABLE, &["sve2", "sha3"]), // FEAT_SVE2_SM4 - ("sve2-sm4", Stable, &["sve2", "sm4"]), + ("sve2-sm4", STABLE, &["sve2", "sm4"]), // FEAT_SVE2p1 - ("sve2p1", Unstable(sym::aarch64_unstable_target_feature), &["sve2"]), + ("sve2p1", unstable(sym::aarch64_unstable_target_feature), &["sve2"]), // FEAT_TME - ("tme", Stable, &[]), - ("v8.1a", Unstable(sym::aarch64_ver_target_feature), &[ + ("tme", STABLE, &[]), + ("v8.1a", unstable(sym::aarch64_ver_target_feature), &[ "crc", "lse", "rdm", "pan", "lor", "vh", ]), - ("v8.2a", Unstable(sym::aarch64_ver_target_feature), &["v8.1a", "ras", "dpb"]), - ("v8.3a", Unstable(sym::aarch64_ver_target_feature), &[ + ("v8.2a", unstable(sym::aarch64_ver_target_feature), &["v8.1a", "ras", "dpb"]), + ("v8.3a", unstable(sym::aarch64_ver_target_feature), &[ "v8.2a", "rcpc", "paca", "pacg", "jsconv", ]), - ("v8.4a", Unstable(sym::aarch64_ver_target_feature), &["v8.3a", "dotprod", "dit", "flagm"]), - ("v8.5a", Unstable(sym::aarch64_ver_target_feature), &["v8.4a", "ssbs", "sb", "dpb2", "bti"]), - ("v8.6a", Unstable(sym::aarch64_ver_target_feature), &["v8.5a", "bf16", "i8mm"]), - ("v8.7a", Unstable(sym::aarch64_ver_target_feature), &["v8.6a", "wfxt"]), - ("v8.8a", Unstable(sym::aarch64_ver_target_feature), &["v8.7a", "hbc", "mops"]), - ("v8.9a", Unstable(sym::aarch64_ver_target_feature), &["v8.8a", "cssc"]), - ("v9.1a", Unstable(sym::aarch64_ver_target_feature), &["v9a", "v8.6a"]), - ("v9.2a", Unstable(sym::aarch64_ver_target_feature), &["v9.1a", "v8.7a"]), - ("v9.3a", Unstable(sym::aarch64_ver_target_feature), &["v9.2a", "v8.8a"]), - ("v9.4a", Unstable(sym::aarch64_ver_target_feature), &["v9.3a", "v8.9a"]), - ("v9.5a", Unstable(sym::aarch64_ver_target_feature), &["v9.4a"]), - ("v9a", Unstable(sym::aarch64_ver_target_feature), &["v8.5a", "sve2"]), + ("v8.4a", unstable(sym::aarch64_ver_target_feature), &["v8.3a", "dotprod", "dit", "flagm"]), + ("v8.5a", unstable(sym::aarch64_ver_target_feature), &["v8.4a", "ssbs", "sb", "dpb2", "bti"]), + ("v8.6a", unstable(sym::aarch64_ver_target_feature), &["v8.5a", "bf16", "i8mm"]), + ("v8.7a", unstable(sym::aarch64_ver_target_feature), &["v8.6a", "wfxt"]), + ("v8.8a", unstable(sym::aarch64_ver_target_feature), &["v8.7a", "hbc", "mops"]), + ("v8.9a", unstable(sym::aarch64_ver_target_feature), &["v8.8a", "cssc"]), + ("v9.1a", unstable(sym::aarch64_ver_target_feature), &["v9a", "v8.6a"]), + ("v9.2a", unstable(sym::aarch64_ver_target_feature), &["v9.1a", "v8.7a"]), + ("v9.3a", unstable(sym::aarch64_ver_target_feature), &["v9.2a", "v8.8a"]), + ("v9.4a", unstable(sym::aarch64_ver_target_feature), &["v9.3a", "v8.9a"]), + ("v9.5a", unstable(sym::aarch64_ver_target_feature), &["v9.4a"]), + ("v9a", unstable(sym::aarch64_ver_target_feature), &["v8.5a", "sve2"]), // FEAT_VHE - ("vh", Stable, &[]), + ("vh", STABLE, &[]), // FEAT_WFxT - ("wfxt", Unstable(sym::aarch64_unstable_target_feature), &[]), + ("wfxt", unstable(sym::aarch64_unstable_target_feature), &[]), // tidy-alphabetical-end ]; @@ -328,241 +388,241 @@ const AARCH64_TIED_FEATURES: &[&[&str]] = &[ &["paca", "pacg"], // Together these represent `pauth` in LLVM ]; -const X86_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const X86_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("adx", Stable, &[]), - ("aes", Stable, &["sse2"]), - ("amx-bf16", Unstable(sym::x86_amx_intrinsics), &["amx-tile"]), - ("amx-complex", Unstable(sym::x86_amx_intrinsics), &["amx-tile"]), - ("amx-fp16", Unstable(sym::x86_amx_intrinsics), &["amx-tile"]), - ("amx-int8", Unstable(sym::x86_amx_intrinsics), &["amx-tile"]), - ("amx-tile", Unstable(sym::x86_amx_intrinsics), &[]), - ("avx", Stable, &["sse4.2"]), - ("avx2", Stable, &["avx"]), - ("avx512bf16", Unstable(sym::avx512_target_feature), &["avx512bw"]), - ("avx512bitalg", Unstable(sym::avx512_target_feature), &["avx512bw"]), - ("avx512bw", Unstable(sym::avx512_target_feature), &["avx512f"]), - ("avx512cd", Unstable(sym::avx512_target_feature), &["avx512f"]), - ("avx512dq", Unstable(sym::avx512_target_feature), &["avx512f"]), - ("avx512f", Unstable(sym::avx512_target_feature), &["avx2", "fma", "f16c"]), - ("avx512fp16", Unstable(sym::avx512_target_feature), &["avx512bw", "avx512vl", "avx512dq"]), - ("avx512ifma", Unstable(sym::avx512_target_feature), &["avx512f"]), - ("avx512vbmi", Unstable(sym::avx512_target_feature), &["avx512bw"]), - ("avx512vbmi2", Unstable(sym::avx512_target_feature), &["avx512bw"]), - ("avx512vl", Unstable(sym::avx512_target_feature), &["avx512f"]), - ("avx512vnni", Unstable(sym::avx512_target_feature), &["avx512f"]), - ("avx512vp2intersect", Unstable(sym::avx512_target_feature), &["avx512f"]), - ("avx512vpopcntdq", Unstable(sym::avx512_target_feature), &["avx512f"]), - ("avxifma", Unstable(sym::avx512_target_feature), &["avx2"]), - ("avxneconvert", Unstable(sym::avx512_target_feature), &["avx2"]), - ("avxvnni", Unstable(sym::avx512_target_feature), &["avx2"]), - ("avxvnniint16", Unstable(sym::avx512_target_feature), &["avx2"]), - ("avxvnniint8", Unstable(sym::avx512_target_feature), &["avx2"]), - ("bmi1", Stable, &[]), - ("bmi2", Stable, &[]), - ("cmpxchg16b", Stable, &[]), - ("ermsb", Unstable(sym::ermsb_target_feature), &[]), - ("f16c", Stable, &["avx"]), - ("fma", Stable, &["avx"]), - ("fxsr", Stable, &[]), - ("gfni", Unstable(sym::avx512_target_feature), &["sse2"]), - ("lahfsahf", Unstable(sym::lahfsahf_target_feature), &[]), - ("lzcnt", Stable, &[]), - ("movbe", Stable, &[]), - ("pclmulqdq", Stable, &["sse2"]), - ("popcnt", Stable, &[]), - ("prfchw", Unstable(sym::prfchw_target_feature), &[]), - ("rdrand", Stable, &[]), - ("rdseed", Stable, &[]), - ("rtm", Unstable(sym::rtm_target_feature), &[]), - ("sha", Stable, &["sse2"]), - ("sha512", Unstable(sym::sha512_sm_x86), &["avx2"]), - ("sm3", Unstable(sym::sha512_sm_x86), &["avx"]), - ("sm4", Unstable(sym::sha512_sm_x86), &["avx2"]), - ("soft-float", Forbidden { reason: "unsound because it changes float ABI" }, &[]), - ("sse", Stable, &[]), - ("sse2", Stable, &["sse"]), - ("sse3", Stable, &["sse2"]), - ("sse4.1", Stable, &["ssse3"]), - ("sse4.2", Stable, &["sse4.1"]), - ("sse4a", Unstable(sym::sse4a_target_feature), &["sse3"]), - ("ssse3", Stable, &["sse3"]), - ("tbm", Unstable(sym::tbm_target_feature), &[]), - ("vaes", Unstable(sym::avx512_target_feature), &["avx2", "aes"]), - ("vpclmulqdq", Unstable(sym::avx512_target_feature), &["avx", "pclmulqdq"]), - ("xop", Unstable(sym::xop_target_feature), &[/*"fma4", */ "avx", "sse4a"]), - ("xsave", Stable, &[]), - ("xsavec", Stable, &["xsave"]), - ("xsaveopt", Stable, &["xsave"]), - ("xsaves", Stable, &["xsave"]), + ("adx", STABLE, &[]), + ("aes", STABLE, &["sse2"]), + ("amx-bf16", unstable(sym::x86_amx_intrinsics), &["amx-tile"]), + ("amx-complex", unstable(sym::x86_amx_intrinsics), &["amx-tile"]), + ("amx-fp16", unstable(sym::x86_amx_intrinsics), &["amx-tile"]), + ("amx-int8", unstable(sym::x86_amx_intrinsics), &["amx-tile"]), + ("amx-tile", unstable(sym::x86_amx_intrinsics), &[]), + ("avx", STABLE, &["sse4.2"]), + ("avx2", STABLE, &["avx"]), + ("avx512bf16", unstable(sym::avx512_target_feature), &["avx512bw"]), + ("avx512bitalg", unstable(sym::avx512_target_feature), &["avx512bw"]), + ("avx512bw", unstable(sym::avx512_target_feature), &["avx512f"]), + ("avx512cd", unstable(sym::avx512_target_feature), &["avx512f"]), + ("avx512dq", unstable(sym::avx512_target_feature), &["avx512f"]), + ("avx512f", unstable(sym::avx512_target_feature), &["avx2", "fma", "f16c"]), + ("avx512fp16", unstable(sym::avx512_target_feature), &["avx512bw", "avx512vl", "avx512dq"]), + ("avx512ifma", unstable(sym::avx512_target_feature), &["avx512f"]), + ("avx512vbmi", unstable(sym::avx512_target_feature), &["avx512bw"]), + ("avx512vbmi2", unstable(sym::avx512_target_feature), &["avx512bw"]), + ("avx512vl", unstable(sym::avx512_target_feature), &["avx512f"]), + ("avx512vnni", unstable(sym::avx512_target_feature), &["avx512f"]), + ("avx512vp2intersect", unstable(sym::avx512_target_feature), &["avx512f"]), + ("avx512vpopcntdq", unstable(sym::avx512_target_feature), &["avx512f"]), + ("avxifma", unstable(sym::avx512_target_feature), &["avx2"]), + ("avxneconvert", unstable(sym::avx512_target_feature), &["avx2"]), + ("avxvnni", unstable(sym::avx512_target_feature), &["avx2"]), + ("avxvnniint16", unstable(sym::avx512_target_feature), &["avx2"]), + ("avxvnniint8", unstable(sym::avx512_target_feature), &["avx2"]), + ("bmi1", STABLE, &[]), + ("bmi2", STABLE, &[]), + ("cmpxchg16b", STABLE, &[]), + ("ermsb", unstable(sym::ermsb_target_feature), &[]), + ("f16c", STABLE, &["avx"]), + ("fma", STABLE, &["avx"]), + ("fxsr", STABLE, &[]), + ("gfni", unstable(sym::avx512_target_feature), &["sse2"]), + ("lahfsahf", unstable(sym::lahfsahf_target_feature), &[]), + ("lzcnt", STABLE, &[]), + ("movbe", STABLE, &[]), + ("pclmulqdq", STABLE, &["sse2"]), + ("popcnt", STABLE, &[]), + ("prfchw", unstable(sym::prfchw_target_feature), &[]), + ("rdrand", STABLE, &[]), + ("rdseed", STABLE, &[]), + ("rtm", unstable(sym::rtm_target_feature), &[]), + ("sha", STABLE, &["sse2"]), + ("sha512", unstable(sym::sha512_sm_x86), &["avx2"]), + ("sm3", unstable(sym::sha512_sm_x86), &["avx"]), + ("sm4", unstable(sym::sha512_sm_x86), &["avx2"]), + ("soft-float", Stability::Forbidden { reason: "unsound because it changes float ABI" }, &[]), + ("sse", STABLE, &[]), + ("sse2", STABLE, &["sse"]), + ("sse3", STABLE, &["sse2"]), + ("sse4.1", STABLE, &["ssse3"]), + ("sse4.2", STABLE, &["sse4.1"]), + ("sse4a", unstable(sym::sse4a_target_feature), &["sse3"]), + ("ssse3", STABLE, &["sse3"]), + ("tbm", unstable(sym::tbm_target_feature), &[]), + ("vaes", unstable(sym::avx512_target_feature), &["avx2", "aes"]), + ("vpclmulqdq", unstable(sym::avx512_target_feature), &["avx", "pclmulqdq"]), + ("xop", unstable(sym::xop_target_feature), &[/*"fma4", */ "avx", "sse4a"]), + ("xsave", STABLE, &[]), + ("xsavec", STABLE, &["xsave"]), + ("xsaveopt", STABLE, &["xsave"]), + ("xsaves", STABLE, &["xsave"]), // tidy-alphabetical-end // FIXME: need to also forbid turning off `x87` on hardfloat targets ]; -const HEXAGON_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const HEXAGON_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("hvx", Unstable(sym::hexagon_target_feature), &[]), - ("hvx-length128b", Unstable(sym::hexagon_target_feature), &["hvx"]), + ("hvx", unstable(sym::hexagon_target_feature), &[]), + ("hvx-length128b", unstable(sym::hexagon_target_feature), &["hvx"]), // tidy-alphabetical-end ]; -const POWERPC_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const POWERPC_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("altivec", Unstable(sym::powerpc_target_feature), &[]), - ("partword-atomics", Unstable(sym::powerpc_target_feature), &[]), - ("power10-vector", Unstable(sym::powerpc_target_feature), &["power9-vector"]), - ("power8-altivec", Unstable(sym::powerpc_target_feature), &["altivec"]), - ("power8-crypto", Unstable(sym::powerpc_target_feature), &["power8-altivec"]), - ("power8-vector", Unstable(sym::powerpc_target_feature), &["vsx", "power8-altivec"]), - ("power9-altivec", Unstable(sym::powerpc_target_feature), &["power8-altivec"]), - ("power9-vector", Unstable(sym::powerpc_target_feature), &["power8-vector", "power9-altivec"]), - ("quadword-atomics", Unstable(sym::powerpc_target_feature), &[]), - ("vsx", Unstable(sym::powerpc_target_feature), &["altivec"]), + ("altivec", unstable(sym::powerpc_target_feature), &[]), + ("partword-atomics", unstable(sym::powerpc_target_feature), &[]), + ("power10-vector", unstable(sym::powerpc_target_feature), &["power9-vector"]), + ("power8-altivec", unstable(sym::powerpc_target_feature), &["altivec"]), + ("power8-crypto", unstable(sym::powerpc_target_feature), &["power8-altivec"]), + ("power8-vector", unstable(sym::powerpc_target_feature), &["vsx", "power8-altivec"]), + ("power9-altivec", unstable(sym::powerpc_target_feature), &["power8-altivec"]), + ("power9-vector", unstable(sym::powerpc_target_feature), &["power8-vector", "power9-altivec"]), + ("quadword-atomics", unstable(sym::powerpc_target_feature), &[]), + ("vsx", unstable(sym::powerpc_target_feature), &["altivec"]), // tidy-alphabetical-end ]; -const MIPS_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const MIPS_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("fp64", Unstable(sym::mips_target_feature), &[]), - ("msa", Unstable(sym::mips_target_feature), &[]), - ("virt", Unstable(sym::mips_target_feature), &[]), + ("fp64", unstable(sym::mips_target_feature), &[]), + ("msa", unstable(sym::mips_target_feature), &[]), + ("virt", unstable(sym::mips_target_feature), &[]), // tidy-alphabetical-end ]; -const RISCV_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const RISCV_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("a", Stable, &["zaamo", "zalrsc"]), - ("c", Stable, &[]), - ("d", Unstable(sym::riscv_target_feature), &["f"]), - ("e", Unstable(sym::riscv_target_feature), &[]), - ("f", Unstable(sym::riscv_target_feature), &[]), - ("m", Stable, &[]), - ("relax", Unstable(sym::riscv_target_feature), &[]), - ("unaligned-scalar-mem", Unstable(sym::riscv_target_feature), &[]), - ("v", Unstable(sym::riscv_target_feature), &[]), - ("zaamo", Unstable(sym::riscv_target_feature), &[]), - ("zabha", Unstable(sym::riscv_target_feature), &["zaamo"]), - ("zalrsc", Unstable(sym::riscv_target_feature), &[]), - ("zba", Stable, &[]), - ("zbb", Stable, &[]), - ("zbc", Stable, &[]), - ("zbkb", Stable, &[]), - ("zbkc", Stable, &[]), - ("zbkx", Stable, &[]), - ("zbs", Stable, &[]), - ("zdinx", Unstable(sym::riscv_target_feature), &["zfinx"]), - ("zfh", Unstable(sym::riscv_target_feature), &["zfhmin"]), - ("zfhmin", Unstable(sym::riscv_target_feature), &["f"]), - ("zfinx", Unstable(sym::riscv_target_feature), &[]), - ("zhinx", Unstable(sym::riscv_target_feature), &["zhinxmin"]), - ("zhinxmin", Unstable(sym::riscv_target_feature), &["zfinx"]), - ("zk", Stable, &["zkn", "zkr", "zkt"]), - ("zkn", Stable, &["zbkb", "zbkc", "zbkx", "zkne", "zknd", "zknh"]), - ("zknd", Stable, &[]), - ("zkne", Stable, &[]), - ("zknh", Stable, &[]), - ("zkr", Stable, &[]), - ("zks", Stable, &["zbkb", "zbkc", "zbkx", "zksed", "zksh"]), - ("zksed", Stable, &[]), - ("zksh", Stable, &[]), - ("zkt", Stable, &[]), + ("a", STABLE, &["zaamo", "zalrsc"]), + ("c", STABLE, &[]), + ("d", unstable(sym::riscv_target_feature), &["f"]), + ("e", unstable(sym::riscv_target_feature), &[]), + ("f", unstable(sym::riscv_target_feature), &[]), + ("m", STABLE, &[]), + ("relax", unstable(sym::riscv_target_feature), &[]), + ("unaligned-scalar-mem", unstable(sym::riscv_target_feature), &[]), + ("v", unstable(sym::riscv_target_feature), &[]), + ("zaamo", unstable(sym::riscv_target_feature), &[]), + ("zabha", unstable(sym::riscv_target_feature), &["zaamo"]), + ("zalrsc", unstable(sym::riscv_target_feature), &[]), + ("zba", STABLE, &[]), + ("zbb", STABLE, &[]), + ("zbc", STABLE, &[]), + ("zbkb", STABLE, &[]), + ("zbkc", STABLE, &[]), + ("zbkx", STABLE, &[]), + ("zbs", STABLE, &[]), + ("zdinx", unstable(sym::riscv_target_feature), &["zfinx"]), + ("zfh", unstable(sym::riscv_target_feature), &["zfhmin"]), + ("zfhmin", unstable(sym::riscv_target_feature), &["f"]), + ("zfinx", unstable(sym::riscv_target_feature), &[]), + ("zhinx", unstable(sym::riscv_target_feature), &["zhinxmin"]), + ("zhinxmin", unstable(sym::riscv_target_feature), &["zfinx"]), + ("zk", STABLE, &["zkn", "zkr", "zkt"]), + ("zkn", STABLE, &["zbkb", "zbkc", "zbkx", "zkne", "zknd", "zknh"]), + ("zknd", STABLE, &[]), + ("zkne", STABLE, &[]), + ("zknh", STABLE, &[]), + ("zkr", STABLE, &[]), + ("zks", STABLE, &["zbkb", "zbkc", "zbkx", "zksed", "zksh"]), + ("zksed", STABLE, &[]), + ("zksh", STABLE, &[]), + ("zkt", STABLE, &[]), // tidy-alphabetical-end ]; -const WASM_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const WASM_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("atomics", Unstable(sym::wasm_target_feature), &[]), - ("bulk-memory", Stable, &[]), - ("exception-handling", Unstable(sym::wasm_target_feature), &[]), - ("extended-const", Stable, &[]), - ("multivalue", Stable, &[]), - ("mutable-globals", Stable, &[]), - ("nontrapping-fptoint", Stable, &[]), - ("reference-types", Stable, &[]), - ("relaxed-simd", Stable, &["simd128"]), - ("sign-ext", Stable, &[]), - ("simd128", Stable, &[]), - ("tail-call", Stable, &[]), - ("wide-arithmetic", Unstable(sym::wasm_target_feature), &[]), + ("atomics", unstable(sym::wasm_target_feature), &[]), + ("bulk-memory", STABLE, &[]), + ("exception-handling", unstable(sym::wasm_target_feature), &[]), + ("extended-const", STABLE, &[]), + ("multivalue", STABLE, &[]), + ("mutable-globals", STABLE, &[]), + ("nontrapping-fptoint", STABLE, &[]), + ("reference-types", STABLE, &[]), + ("relaxed-simd", STABLE, &["simd128"]), + ("sign-ext", STABLE, &[]), + ("simd128", STABLE, &[]), + ("tail-call", STABLE, &[]), + ("wide-arithmetic", unstable(sym::wasm_target_feature), &[]), // tidy-alphabetical-end ]; -const BPF_FEATURES: &[(&str, Stability, ImpliedFeatures)] = - &[("alu32", Unstable(sym::bpf_target_feature), &[])]; +const BPF_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = + &[("alu32", unstable(sym::bpf_target_feature), &[])]; -const CSKY_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const CSKY_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("10e60", Unstable(sym::csky_target_feature), &["7e10"]), - ("2e3", Unstable(sym::csky_target_feature), &["e2"]), - ("3e3r1", Unstable(sym::csky_target_feature), &[]), - ("3e3r2", Unstable(sym::csky_target_feature), &["3e3r1", "doloop"]), - ("3e3r3", Unstable(sym::csky_target_feature), &["doloop"]), - ("3e7", Unstable(sym::csky_target_feature), &["2e3"]), - ("7e10", Unstable(sym::csky_target_feature), &["3e7"]), - ("cache", Unstable(sym::csky_target_feature), &[]), - ("doloop", Unstable(sym::csky_target_feature), &[]), - ("dsp1e2", Unstable(sym::csky_target_feature), &[]), - ("dspe60", Unstable(sym::csky_target_feature), &[]), - ("e1", Unstable(sym::csky_target_feature), &["elrw"]), - ("e2", Unstable(sym::csky_target_feature), &["e2"]), - ("edsp", Unstable(sym::csky_target_feature), &[]), - ("elrw", Unstable(sym::csky_target_feature), &[]), - ("float1e2", Unstable(sym::csky_target_feature), &[]), - ("float1e3", Unstable(sym::csky_target_feature), &[]), - ("float3e4", Unstable(sym::csky_target_feature), &[]), - ("float7e60", Unstable(sym::csky_target_feature), &[]), - ("floate1", Unstable(sym::csky_target_feature), &[]), - ("hard-tp", Unstable(sym::csky_target_feature), &[]), - ("high-registers", Unstable(sym::csky_target_feature), &[]), - ("hwdiv", Unstable(sym::csky_target_feature), &[]), - ("mp", Unstable(sym::csky_target_feature), &["2e3"]), - ("mp1e2", Unstable(sym::csky_target_feature), &["3e7"]), - ("nvic", Unstable(sym::csky_target_feature), &[]), - ("trust", Unstable(sym::csky_target_feature), &[]), - ("vdsp2e60f", Unstable(sym::csky_target_feature), &[]), - ("vdspv1", Unstable(sym::csky_target_feature), &[]), - ("vdspv2", Unstable(sym::csky_target_feature), &[]), + ("10e60", unstable(sym::csky_target_feature), &["7e10"]), + ("2e3", unstable(sym::csky_target_feature), &["e2"]), + ("3e3r1", unstable(sym::csky_target_feature), &[]), + ("3e3r2", unstable(sym::csky_target_feature), &["3e3r1", "doloop"]), + ("3e3r3", unstable(sym::csky_target_feature), &["doloop"]), + ("3e7", unstable(sym::csky_target_feature), &["2e3"]), + ("7e10", unstable(sym::csky_target_feature), &["3e7"]), + ("cache", unstable(sym::csky_target_feature), &[]), + ("doloop", unstable(sym::csky_target_feature), &[]), + ("dsp1e2", unstable(sym::csky_target_feature), &[]), + ("dspe60", unstable(sym::csky_target_feature), &[]), + ("e1", unstable(sym::csky_target_feature), &["elrw"]), + ("e2", unstable(sym::csky_target_feature), &["e2"]), + ("edsp", unstable(sym::csky_target_feature), &[]), + ("elrw", unstable(sym::csky_target_feature), &[]), + ("float1e2", unstable(sym::csky_target_feature), &[]), + ("float1e3", unstable(sym::csky_target_feature), &[]), + ("float3e4", unstable(sym::csky_target_feature), &[]), + ("float7e60", unstable(sym::csky_target_feature), &[]), + ("floate1", unstable(sym::csky_target_feature), &[]), + ("hard-tp", unstable(sym::csky_target_feature), &[]), + ("high-registers", unstable(sym::csky_target_feature), &[]), + ("hwdiv", unstable(sym::csky_target_feature), &[]), + ("mp", unstable(sym::csky_target_feature), &["2e3"]), + ("mp1e2", unstable(sym::csky_target_feature), &["3e7"]), + ("nvic", unstable(sym::csky_target_feature), &[]), + ("trust", unstable(sym::csky_target_feature), &[]), + ("vdsp2e60f", unstable(sym::csky_target_feature), &[]), + ("vdspv1", unstable(sym::csky_target_feature), &[]), + ("vdspv2", unstable(sym::csky_target_feature), &[]), // tidy-alphabetical-end //fpu // tidy-alphabetical-start - ("fdivdu", Unstable(sym::csky_target_feature), &[]), - ("fpuv2_df", Unstable(sym::csky_target_feature), &[]), - ("fpuv2_sf", Unstable(sym::csky_target_feature), &[]), - ("fpuv3_df", Unstable(sym::csky_target_feature), &[]), - ("fpuv3_hf", Unstable(sym::csky_target_feature), &[]), - ("fpuv3_hi", Unstable(sym::csky_target_feature), &[]), - ("fpuv3_sf", Unstable(sym::csky_target_feature), &[]), - ("hard-float", Unstable(sym::csky_target_feature), &[]), - ("hard-float-abi", Unstable(sym::csky_target_feature), &[]), + ("fdivdu", unstable(sym::csky_target_feature), &[]), + ("fpuv2_df", unstable(sym::csky_target_feature), &[]), + ("fpuv2_sf", unstable(sym::csky_target_feature), &[]), + ("fpuv3_df", unstable(sym::csky_target_feature), &[]), + ("fpuv3_hf", unstable(sym::csky_target_feature), &[]), + ("fpuv3_hi", unstable(sym::csky_target_feature), &[]), + ("fpuv3_sf", unstable(sym::csky_target_feature), &[]), + ("hard-float", unstable(sym::csky_target_feature), &[]), + ("hard-float-abi", unstable(sym::csky_target_feature), &[]), // tidy-alphabetical-end ]; -const LOONGARCH_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const LOONGARCH_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("d", Unstable(sym::loongarch_target_feature), &["f"]), - ("f", Unstable(sym::loongarch_target_feature), &[]), - ("frecipe", Unstable(sym::loongarch_target_feature), &[]), - ("lasx", Unstable(sym::loongarch_target_feature), &["lsx"]), - ("lbt", Unstable(sym::loongarch_target_feature), &[]), - ("lsx", Unstable(sym::loongarch_target_feature), &["d"]), - ("lvz", Unstable(sym::loongarch_target_feature), &[]), - ("relax", Unstable(sym::loongarch_target_feature), &[]), - ("ual", Unstable(sym::loongarch_target_feature), &[]), + ("d", unstable(sym::loongarch_target_feature), &["f"]), + ("f", unstable(sym::loongarch_target_feature), &[]), + ("frecipe", unstable(sym::loongarch_target_feature), &[]), + ("lasx", unstable(sym::loongarch_target_feature), &["lsx"]), + ("lbt", unstable(sym::loongarch_target_feature), &[]), + ("lsx", unstable(sym::loongarch_target_feature), &["d"]), + ("lvz", unstable(sym::loongarch_target_feature), &[]), + ("relax", unstable(sym::loongarch_target_feature), &[]), + ("ual", unstable(sym::loongarch_target_feature), &[]), // tidy-alphabetical-end ]; -const IBMZ_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const IBMZ_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("backchain", Unstable(sym::s390x_target_feature), &[]), - ("vector", Unstable(sym::s390x_target_feature), &[]), + ("backchain", unstable(sym::s390x_target_feature), &[]), + ("vector", unstable(sym::s390x_target_feature), &[]), // tidy-alphabetical-end ]; -const SPARC_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ +const SPARC_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ // tidy-alphabetical-start - ("leoncasa", Unstable(sym::sparc_target_feature), &[]), - ("v8plus", Unstable(sym::sparc_target_feature), &[]), - ("v9", Unstable(sym::sparc_target_feature), &[]), + ("leoncasa", unstable(sym::sparc_target_feature), &[]), + ("v8plus", unstable(sym::sparc_target_feature), &[]), + ("v9", unstable(sym::sparc_target_feature), &[]), // tidy-alphabetical-end ]; @@ -570,7 +630,7 @@ const SPARC_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ /// primitives may be documented. /// /// IMPORTANT: If you're adding another feature list above, make sure to add it to this iterator! -pub fn all_rust_features() -> impl Iterator { +pub fn all_rust_features() -> impl Iterator { std::iter::empty() .chain(ARM_FEATURES.iter()) .chain(AARCH64_FEATURES.iter()) @@ -612,8 +672,10 @@ const HEXAGON_FEATURES_FOR_CORRECT_VECTOR_ABI: &'static [(u64, &'static str)] = const MIPS_FEATURES_FOR_CORRECT_VECTOR_ABI: &'static [(u64, &'static str)] = &[(128, "msa")]; const CSKY_FEATURES_FOR_CORRECT_VECTOR_ABI: &'static [(u64, &'static str)] = &[(128, "vdspv1")]; -impl super::spec::Target { - pub fn rust_target_features(&self) -> &'static [(&'static str, Stability, ImpliedFeatures)] { +impl Target { + pub fn rust_target_features( + &self, + ) -> &'static [(&'static str, StabilityUncomputed, ImpliedFeatures)] { match &*self.arch { "arm" => ARM_FEATURES, "aarch64" | "arm64ec" => AARCH64_FEATURES, -- cgit 1.4.1-3-g733a5 From 60eca2c5758a736559a60b7552833d20b0895763 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Mon, 2 Dec 2024 11:02:22 +0100 Subject: apply review feedback --- compiler/rustc_codegen_gcc/src/gcc_util.rs | 4 ++- compiler/rustc_codegen_llvm/src/llvm_util.rs | 8 ++++-- compiler/rustc_codegen_ssa/src/target_features.rs | 4 +-- compiler/rustc_target/src/target_features.rs | 34 +++++++++++++++-------- 4 files changed, 32 insertions(+), 18 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_gcc/src/gcc_util.rs b/compiler/rustc_codegen_gcc/src/gcc_util.rs index 3717e12020f..88e5eefd7a1 100644 --- a/compiler/rustc_codegen_gcc/src/gcc_util.rs +++ b/compiler/rustc_codegen_gcc/src/gcc_util.rs @@ -95,7 +95,9 @@ pub(crate) fn global_gcc_features(sess: &Session, diagnostics: bool) -> Vec { - if let Err(reason) = stability.compute(&sess.target).allow_toggle() { + if let Err(reason) = + stability.compute_toggleability(&sess.target).allow_toggle() + { sess.dcx().emit_warn(ForbiddenCTargetFeature { feature, reason }); } else if stability.requires_nightly().is_some() { // An unstable feature. Warn about using it. (It makes little sense diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs index 3f53856f98d..bfec7d708cf 100644 --- a/compiler/rustc_codegen_llvm/src/llvm_util.rs +++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs @@ -717,12 +717,14 @@ pub(crate) fn global_llvm_features( sess.dcx().emit_warn(unknown_feature); } Some((_, stability, _)) => { - if let Err(reason) = stability.compute(&sess.target).allow_toggle() { + if let Err(reason) = + stability.compute_toggleability(&sess.target).allow_toggle() + { sess.dcx().emit_warn(ForbiddenCTargetFeature { feature, reason }); } else if stability.requires_nightly().is_some() { - // An unstable feature. Warn about using it. (It makes little sense + // An unstable feature. Warn about using it. It makes little sense // to hard-error here since we just warn about fully unknown - // features above). + // features above. sess.dcx().emit_warn(UnstableCTargetFeature { feature }); } } diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs index b3057325bd6..fa600ec7166 100644 --- a/compiler/rustc_codegen_ssa/src/target_features.rs +++ b/compiler/rustc_codegen_ssa/src/target_features.rs @@ -153,14 +153,14 @@ pub(crate) fn provide(providers: &mut Providers) { // rustdoc needs to be able to document functions that use all the features, so // whitelist them all rustc_target::target_features::all_rust_features() - .map(|(a, b)| (a.to_string(), b.compute(target))) + .map(|(a, b)| (a.to_string(), b.compute_toggleability(target))) .collect() } else { tcx.sess .target .rust_target_features() .iter() - .map(|&(a, b, _)| (a.to_string(), b.compute(target))) + .map(|&(a, b, _)| (a.to_string(), b.compute_toggleability(target))) .collect() } }, diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index d5da130aa6c..b8b0e0c7d59 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -17,17 +17,17 @@ pub const RUSTC_SPECIFIC_FEATURES: &[&str] = &["crt-static"]; pub const RUSTC_SPECIAL_FEATURES: &[&str] = &["backchain"]; /// Stability information for target features. -/// `AllowToggle` is the type storing whether (un)stable features can be toggled: +/// `Toggleability` is the type storing whether (un)stable features can be toggled: /// this is initially a function since it can depend on `Target`, but for stable hashing /// it needs to be something hashable to we have to make the type generic. #[derive(Debug, Clone, Copy)] -pub enum Stability { +pub enum Stability { /// This target feature is stable, it can be used in `#[target_feature]` and /// `#[cfg(target_feature)]`. Stable { - /// When enabling/dsiabling the feature via `-Ctarget-feature` or `#[target_feature]`, + /// When enabling/disabling the feature via `-Ctarget-feature` or `#[target_feature]`, /// determine if that is allowed. - allow_toggle: AllowToggle, + allow_toggle: Toggleability, }, /// This target feature is unstable. It is only present in `#[cfg(target_feature)]` on /// nightly and using it in `#[target_feature]` requires enabling the given nightly feature. @@ -36,7 +36,7 @@ pub enum Stability { /// feature gate! nightly_feature: Symbol, /// See `Stable::allow_toggle` comment above. - allow_toggle: AllowToggle, + allow_toggle: Toggleability, }, /// This feature can not be set via `-Ctarget-feature` or `#[target_feature]`, it can only be /// set in the basic target definition. It is never set in `cfg(target_feature)`. Used in @@ -50,7 +50,7 @@ pub type StabilityUncomputed = Stability Result<(), &'static str> /// `Stability` where `allow_toggle` has already been computed. pub type StabilityComputed = Stability>; -impl> HashStable for Stability { +impl> HashStable for Stability { #[inline] fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { std::mem::discriminant(self).hash_stable(hcx, hasher); @@ -69,15 +69,22 @@ impl> HashStable for Stability Stability { - /// Returns whether the feature can be queried in `cfg` ever. - /// (It might still be nightly-only even if this returns `true`). +impl Stability { + /// Returns whether the feature can be used in `cfg(target_feature)` ever. + /// (It might still be nightly-only even if this returns `true`, so make sure to also check + /// `requires_nightly`.) pub fn in_cfg(self) -> bool { !matches!(self, Stability::Forbidden { .. }) } - /// Returns the nightly feature that is required to toggle or query this target feature. Ensure - /// to also check `allow_toggle()` before allowing to toggle! + /// Returns the nightly feature that is required to toggle this target feature via + /// `#[target_feature]`/`-Ctarget-feature` or to test it via `cfg(target_feature)`. + /// (For `cfg` we only care whether the feature is nightly or not, we don't require + /// the feature gate to actually be enabled when using a nightly compiler.) + /// + /// Before calling this, ensure the feature is even permitted for this use: + /// - for `#[target_feature]`/`-Ctarget-feature`, check `allow_toggle()` + /// - for `cfg(target_feature)`, check `in_cfg` pub fn requires_nightly(self) -> Option { match self { Stability::Unstable { nightly_feature, .. } => Some(nightly_feature), @@ -88,7 +95,7 @@ impl Stability { } impl StabilityUncomputed { - pub fn compute(self, target: &Target) -> StabilityComputed { + pub fn compute_toggleability(self, target: &Target) -> StabilityComputed { use Stability::*; match self { Stable { allow_toggle } => Stable { allow_toggle: allow_toggle(target) }, @@ -101,6 +108,9 @@ impl StabilityUncomputed { } impl StabilityComputed { + /// Returns whether the feature may be toggled via `#[target_feature]` or `-Ctarget-feature`. + /// (It might still be nightly-only even if this returns `true`, so make sure to also check + /// `requires_nightly`.) pub fn allow_toggle(self) -> Result<(), &'static str> { match self { Stability::Stable { allow_toggle } => allow_toggle, -- cgit 1.4.1-3-g733a5 From f7c6a2cf11eb075ea56b54c48756ee55d0b2aeb1 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Thu, 12 Dec 2024 20:54:33 +1100 Subject: Fix our `llvm::Bool` typedef to be signed, to match `LLVMBool` In the LLVM-C API, boolean values are passed as `typedef int LLVMBool`, but our Rust-side typedef was using `c_uint` instead. Signed and unsigned integers have the same ABI on most platforms, but that isn't universally true, so we should prefer to be consistent with LLVM. --- compiler/rustc_codegen_llvm/src/llvm/ffi.rs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 8b4523bd252..d62632d1431 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -17,7 +17,9 @@ use super::debuginfo::{ DebugEmissionKind, DebugNameTableKind, }; -pub type Bool = c_uint; +/// In the LLVM-C API, boolean values are passed as `typedef int LLVMBool`, +/// which has a different ABI from Rust or C++ `bool`. +pub type Bool = c_int; pub const True: Bool = 1 as Bool; pub const False: Bool = 0 as Bool; -- cgit 1.4.1-3-g733a5 From de53fe245d7f937640bef68a4eb3622b43c39674 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Thu, 12 Dec 2024 18:33:33 +1100 Subject: coverage: Tidy up creation of covmap records --- .../rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 60 ++++++++++------------ 1 file changed, 27 insertions(+), 33 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index a573a37beb3..7c7903ce842 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -75,9 +75,6 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { // Encode all filenames referenced by coverage mappings in this CGU. let filenames_buffer = global_file_table.make_filenames_buffer(tcx); - - let filenames_size = filenames_buffer.len(); - let filenames_val = cx.const_bytes(&filenames_buffer); let filenames_ref = llvm_cov::hash_bytes(&filenames_buffer); let mut unused_function_names = Vec::new(); @@ -126,7 +123,7 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { // Generate the coverage map header, which contains the filenames used by // this CGU's coverage mappings, and store it in a well-known global. // (This is skipped if we returned early due to having no covfun records.) - generate_covmap_record(cx, covmap_version, filenames_size, filenames_val); + generate_covmap_record(cx, covmap_version, &filenames_buffer); } /// Maps "global" (per-CGU) file ID numbers to their underlying filenames. @@ -225,38 +222,35 @@ fn span_file_name(tcx: TyCtxt<'_>, span: Span) -> Symbol { /// Generates the contents of the covmap record for this CGU, which mostly /// consists of a header and a list of filenames. The record is then stored /// as a global variable in the `__llvm_covmap` section. -fn generate_covmap_record<'ll>( - cx: &CodegenCx<'ll, '_>, - version: u32, - filenames_size: usize, - filenames_val: &'ll llvm::Value, -) { - debug!("cov map: filenames_size = {}, 0-based version = {}", filenames_size, version); - - // Create the coverage data header (Note, fields 0 and 2 are now always zero, - // as of `llvm::coverage::CovMapVersion::Version4`.) - let zero_was_n_records_val = cx.const_u32(0); - let filenames_size_val = cx.const_u32(filenames_size as u32); - let zero_was_coverage_size_val = cx.const_u32(0); - let version_val = cx.const_u32(version); - let cov_data_header_val = cx.const_struct( - &[zero_was_n_records_val, filenames_size_val, zero_was_coverage_size_val, version_val], - /*packed=*/ false, +fn generate_covmap_record<'ll>(cx: &CodegenCx<'ll, '_>, version: u32, filenames_buffer: &[u8]) { + // A covmap record consists of four target-endian u32 values, followed by + // the encoded filenames table. Two of the header fields are unused in + // modern versions of the LLVM coverage mapping format, and are always 0. + // + // See also `src/llvm-project/clang/lib/CodeGen/CoverageMappingGen.cpp`. + let covmap_header = cx.const_struct( + &[ + cx.const_u32(0), // (unused) + cx.const_u32(filenames_buffer.len() as u32), + cx.const_u32(0), // (unused) + cx.const_u32(version), + ], + /* packed */ false, ); - - // Create the complete LLVM coverage data value to add to the LLVM IR - let covmap_data = - cx.const_struct(&[cov_data_header_val, filenames_val], /*packed=*/ false); - - let llglobal = llvm::add_global(cx.llmod, cx.val_ty(covmap_data), &llvm_cov::covmap_var_name()); - llvm::set_initializer(llglobal, covmap_data); - llvm::set_global_constant(llglobal, true); - llvm::set_linkage(llglobal, llvm::Linkage::PrivateLinkage); - llvm::set_section(llglobal, &llvm_cov::covmap_section_name(cx.llmod)); + let covmap_record = cx + .const_struct(&[covmap_header, cx.const_bytes(filenames_buffer)], /* packed */ false); + + let covmap_global = + llvm::add_global(cx.llmod, cx.val_ty(covmap_record), &llvm_cov::covmap_var_name()); + llvm::set_initializer(covmap_global, covmap_record); + llvm::set_global_constant(covmap_global, true); + llvm::set_linkage(covmap_global, llvm::Linkage::PrivateLinkage); + llvm::set_section(covmap_global, &llvm_cov::covmap_section_name(cx.llmod)); // LLVM's coverage mapping format specifies 8-byte alignment for items in this section. // - llvm::set_alignment(llglobal, Align::EIGHT); - cx.add_used_global(llglobal); + llvm::set_alignment(covmap_global, Align::EIGHT); + + cx.add_used_global(covmap_global); } /// Each CGU will normally only emit coverage metadata for the functions that it actually generates. -- cgit 1.4.1-3-g733a5 From 5f5745beb06cac3f0d0cabf1d8edd1ffa53a9b55 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Thu, 12 Dec 2024 20:28:10 +1100 Subject: coverage: Tidy up creation of covfun records --- .../rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 7 ++- .../src/coverageinfo/mapgen/covfun.rs | 59 +++++++++++----------- 2 files changed, 34 insertions(+), 32 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index 7c7903ce842..4f2af732527 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -75,7 +75,10 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { // Encode all filenames referenced by coverage mappings in this CGU. let filenames_buffer = global_file_table.make_filenames_buffer(tcx); - let filenames_ref = llvm_cov::hash_bytes(&filenames_buffer); + // The `llvm-cov` tool uses this hash to associate each covfun record with + // its corresponding filenames table, since the final binary will typically + // contain multiple covmap records from different compilation units. + let filenames_hash = llvm_cov::hash_bytes(&filenames_buffer); let mut unused_function_names = Vec::new(); @@ -98,7 +101,7 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { for covfun in &covfun_records { unused_function_names.extend(covfun.mangled_function_name_if_unused()); - covfun::generate_covfun_record(cx, filenames_ref, covfun) + covfun::generate_covfun_record(cx, filenames_hash, covfun) } // For unused functions, we need to take their mangled names and store them diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index 530e6827f55..33e7a0f2f20 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -136,7 +136,7 @@ fn fill_region_tables<'tcx>( /// as a global variable in the `__llvm_covfun` section. pub(crate) fn generate_covfun_record<'tcx>( cx: &CodegenCx<'_, 'tcx>, - filenames_ref: u64, + filenames_hash: u64, covfun: &CovfunRecord<'tcx>, ) { let &CovfunRecord { @@ -155,46 +155,45 @@ pub(crate) fn generate_covfun_record<'tcx>( regions, ); - // Concatenate the encoded coverage mappings - let coverage_mapping_size = coverage_mapping_buffer.len(); - let coverage_mapping_val = cx.const_bytes(&coverage_mapping_buffer); - + // A covfun record consists of four target-endian integers, followed by the + // encoded mapping data in bytes. Note that the length field is 32 bits. + // + // See also `src/llvm-project/clang/lib/CodeGen/CoverageMappingGen.cpp` and + // `COVMAP_V3` in `src/llvm-project/llvm/include/llvm/ProfileData/InstrProfData.inc`. let func_name_hash = llvm_cov::hash_bytes(mangled_function_name.as_bytes()); - let func_name_hash_val = cx.const_u64(func_name_hash); - let coverage_mapping_size_val = cx.const_u32(coverage_mapping_size as u32); - let source_hash_val = cx.const_u64(source_hash); - let filenames_ref_val = cx.const_u64(filenames_ref); - let func_record_val = cx.const_struct( + let covfun_record = cx.const_struct( &[ - func_name_hash_val, - coverage_mapping_size_val, - source_hash_val, - filenames_ref_val, - coverage_mapping_val, + cx.const_u64(func_name_hash), + cx.const_u32(coverage_mapping_buffer.len() as u32), + cx.const_u64(source_hash), + cx.const_u64(filenames_hash), + cx.const_bytes(&coverage_mapping_buffer), ], - /*packed=*/ true, + // This struct needs to be packed, so that the 32-bit length field + // doesn't have unexpected padding. + true, ); // Choose a variable name to hold this function's covfun data. // Functions that are used have a suffix ("u") to distinguish them from // unused copies of the same function (from different CGUs), so that if a // linker sees both it won't discard the used copy's data. - let func_record_var_name = - CString::new(format!("__covrec_{:X}{}", func_name_hash, if is_used { "u" } else { "" })) - .unwrap(); - debug!("function record var name: {:?}", func_record_var_name); - - let llglobal = llvm::add_global(cx.llmod, cx.val_ty(func_record_val), &func_record_var_name); - llvm::set_initializer(llglobal, func_record_val); - llvm::set_global_constant(llglobal, true); - llvm::set_linkage(llglobal, llvm::Linkage::LinkOnceODRLinkage); - llvm::set_visibility(llglobal, llvm::Visibility::Hidden); - llvm::set_section(llglobal, cx.covfun_section_name()); + let u = if is_used { "u" } else { "" }; + let covfun_var_name = CString::new(format!("__covrec_{func_name_hash:X}{u}")).unwrap(); + debug!("function record var name: {covfun_var_name:?}"); + + let covfun_global = llvm::add_global(cx.llmod, cx.val_ty(covfun_record), &covfun_var_name); + llvm::set_initializer(covfun_global, covfun_record); + llvm::set_global_constant(covfun_global, true); + llvm::set_linkage(covfun_global, llvm::Linkage::LinkOnceODRLinkage); + llvm::set_visibility(covfun_global, llvm::Visibility::Hidden); + llvm::set_section(covfun_global, cx.covfun_section_name()); // LLVM's coverage mapping format specifies 8-byte alignment for items in this section. // - llvm::set_alignment(llglobal, Align::EIGHT); + llvm::set_alignment(covfun_global, Align::EIGHT); if cx.target_spec().supports_comdat() { - llvm::set_comdat(cx.llmod, llglobal, &func_record_var_name); + llvm::set_comdat(cx.llmod, covfun_global, &covfun_var_name); } - cx.add_used_global(llglobal); + + cx.add_used_global(covfun_global); } -- cgit 1.4.1-3-g733a5 From eb2e928250066df9e40291fb9fb97308df16046e Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sun, 24 Nov 2024 12:22:01 +0100 Subject: target_features: control separately whether enabling and disabling a target feature is allowed --- compiler/rustc_codegen_gcc/src/gcc_util.rs | 2 +- compiler/rustc_codegen_gcc/src/lib.rs | 4 +- compiler/rustc_codegen_llvm/src/llvm_util.rs | 6 +- compiler/rustc_codegen_ssa/src/target_features.rs | 4 +- compiler/rustc_target/src/target_features.rs | 77 ++++++++++++++++------- 5 files changed, 63 insertions(+), 30 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_gcc/src/gcc_util.rs b/compiler/rustc_codegen_gcc/src/gcc_util.rs index 88e5eefd7a1..058a874501b 100644 --- a/compiler/rustc_codegen_gcc/src/gcc_util.rs +++ b/compiler/rustc_codegen_gcc/src/gcc_util.rs @@ -96,7 +96,7 @@ pub(crate) fn global_gcc_features(sess: &Session, diagnostics: bool) -> Vec { if let Err(reason) = - stability.compute_toggleability(&sess.target).allow_toggle() + stability.toggle_allowed(&sess.target, enable_disable == '+') { sess.dcx().emit_warn(ForbiddenCTargetFeature { feature, reason }); } else if stability.requires_nightly().is_some() { diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs index 764e84be1fe..bb0f2fa5b01 100644 --- a/compiler/rustc_codegen_gcc/src/lib.rs +++ b/compiler/rustc_codegen_gcc/src/lib.rs @@ -483,9 +483,9 @@ fn target_features_cfg( .rust_target_features() .iter() .filter(|(_, gate, _)| gate.in_cfg()) - .filter_map(|&(feature, gate, _)| { + .filter_map(|(feature, gate, _)| { if sess.is_nightly_build() || allow_unstable || gate.requires_nightly().is_none() { - Some(feature) + Some(*feature) } else { None } diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs index bfec7d708cf..194438af88c 100644 --- a/compiler/rustc_codegen_llvm/src/llvm_util.rs +++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs @@ -373,9 +373,9 @@ pub fn target_features_cfg(sess: &Session, allow_unstable: bool) -> Vec .rust_target_features() .iter() .filter(|(_, gate, _)| gate.in_cfg()) - .filter_map(|&(feature, gate, _)| { + .filter_map(|(feature, gate, _)| { if sess.is_nightly_build() || allow_unstable || gate.requires_nightly().is_none() { - Some(feature) + Some(*feature) } else { None } @@ -718,7 +718,7 @@ pub(crate) fn global_llvm_features( } Some((_, stability, _)) => { if let Err(reason) = - stability.compute_toggleability(&sess.target).allow_toggle() + stability.toggle_allowed(&sess.target, enable_disable == '+') { sess.dcx().emit_warn(ForbiddenCTargetFeature { feature, reason }); } else if stability.requires_nightly().is_some() { diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs index fa600ec7166..f4d4a9db1d8 100644 --- a/compiler/rustc_codegen_ssa/src/target_features.rs +++ b/compiler/rustc_codegen_ssa/src/target_features.rs @@ -65,7 +65,7 @@ pub(crate) fn from_target_feature_attr( // Only allow target features whose feature gates have been enabled // and which are permitted to be toggled. - if let Err(reason) = stability.allow_toggle() { + if let Err(reason) = stability.toggle_allowed(/*enable*/ true) { tcx.dcx().emit_err(errors::ForbiddenTargetFeatureAttr { span: item.span(), feature, @@ -160,7 +160,7 @@ pub(crate) fn provide(providers: &mut Providers) { .target .rust_target_features() .iter() - .map(|&(a, b, _)| (a.to_string(), b.compute_toggleability(target))) + .map(|(a, b, _)| (a.to_string(), b.compute_toggleability(target))) .collect() } }, diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index 29d3f826a15..493c3a0ef6b 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -20,7 +20,7 @@ pub const RUSTC_SPECIAL_FEATURES: &[&str] = &["backchain"]; /// `Toggleability` is the type storing whether (un)stable features can be toggled: /// this is initially a function since it can depend on `Target`, but for stable hashing /// it needs to be something hashable to we have to make the type generic. -#[derive(Debug, Clone, Copy)] +#[derive(Debug, Clone)] pub enum Stability { /// This target feature is stable, it can be used in `#[target_feature]` and /// `#[cfg(target_feature)]`. @@ -44,11 +44,21 @@ pub enum Stability { Forbidden { reason: &'static str }, } -/// `Stability` where `allow_toggle` has not been computed yet. /// Returns `Ok` if the toggle is allowed, `Err` with an explanation of not. -pub type StabilityUncomputed = Stability Result<(), &'static str>>; +/// The `bool` indicates whether the feature is being enabled (`true`) or disabled. +pub type AllowToggleUncomputed = fn(&Target, bool) -> Result<(), &'static str>; + +/// The computed result of whether a feature can be enabled/disabled on the current target. +#[derive(Debug, Clone)] +pub struct AllowToggleComputed { + enable: Result<(), &'static str>, + disable: Result<(), &'static str>, +} + +/// `Stability` where `allow_toggle` has not been computed yet. +pub type StabilityUncomputed = Stability; /// `Stability` where `allow_toggle` has already been computed. -pub type StabilityComputed = Stability>; +pub type StabilityComputed = Stability; impl> HashStable for Stability { #[inline] @@ -69,11 +79,20 @@ impl> HashStable for Stability HashStable for AllowToggleComputed { + #[inline] + fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { + let AllowToggleComputed { enable, disable } = self; + enable.hash_stable(hcx, hasher); + disable.hash_stable(hcx, hasher); + } +} + impl Stability { /// Returns whether the feature can be used in `cfg(target_feature)` ever. /// (It might still be nightly-only even if this returns `true`, so make sure to also check /// `requires_nightly`.) - pub fn in_cfg(self) -> bool { + pub fn in_cfg(&self) -> bool { !matches!(self, Stability::Forbidden { .. }) } @@ -85,24 +104,37 @@ impl Stability { /// Before calling this, ensure the feature is even permitted for this use: /// - for `#[target_feature]`/`-Ctarget-feature`, check `allow_toggle()` /// - for `cfg(target_feature)`, check `in_cfg` - pub fn requires_nightly(self) -> Option { + pub fn requires_nightly(&self) -> Option { match self { - Stability::Unstable { nightly_feature, .. } => Some(nightly_feature), - Stability::Stable { .. } => None, - Stability::Forbidden { .. } => panic!("forbidden features should not reach this far"), + &Stability::Unstable { nightly_feature, .. } => Some(nightly_feature), + &Stability::Stable { .. } => None, + &Stability::Forbidden { .. } => panic!("forbidden features should not reach this far"), } } } impl StabilityUncomputed { - pub fn compute_toggleability(self, target: &Target) -> StabilityComputed { + pub fn compute_toggleability(&self, target: &Target) -> StabilityComputed { use Stability::*; + let compute = |f: AllowToggleUncomputed| AllowToggleComputed { + enable: f(target, true), + disable: f(target, false), + }; match self { - Stable { allow_toggle } => Stable { allow_toggle: allow_toggle(target) }, - Unstable { nightly_feature, allow_toggle } => { - Unstable { nightly_feature, allow_toggle: allow_toggle(target) } + &Stable { allow_toggle } => Stable { allow_toggle: compute(allow_toggle) }, + &Unstable { nightly_feature, allow_toggle } => { + Unstable { nightly_feature, allow_toggle: compute(allow_toggle) } } - Forbidden { reason } => Forbidden { reason }, + &Forbidden { reason } => Forbidden { reason }, + } + } + + pub fn toggle_allowed(&self, target: &Target, enable: bool) -> Result<(), &'static str> { + use Stability::*; + match self { + &Stable { allow_toggle } => allow_toggle(target, enable), + &Unstable { allow_toggle, .. } => allow_toggle(target, enable), + &Forbidden { reason } => Err(reason), } } } @@ -111,19 +143,20 @@ impl StabilityComputed { /// Returns whether the feature may be toggled via `#[target_feature]` or `-Ctarget-feature`. /// (It might still be nightly-only even if this returns `true`, so make sure to also check /// `requires_nightly`.) - pub fn allow_toggle(self) -> Result<(), &'static str> { - match self { + pub fn toggle_allowed(&self, enable: bool) -> Result<(), &'static str> { + let allow_toggle = match self { Stability::Stable { allow_toggle } => allow_toggle, Stability::Unstable { allow_toggle, .. } => allow_toggle, - Stability::Forbidden { reason } => Err(reason), - } + Stability::Forbidden { reason } => return Err(reason), + }; + if enable { allow_toggle.enable } else { allow_toggle.disable } } } // Constructors for the list below, defaulting to "always allow toggle". -const STABLE: StabilityUncomputed = Stability::Stable { allow_toggle: |_target| Ok(()) }; +const STABLE: StabilityUncomputed = Stability::Stable { allow_toggle: |_target, _enable| Ok(()) }; const fn unstable(nightly_feature: Symbol) -> StabilityUncomputed { - Stability::Unstable { nightly_feature, allow_toggle: |_target| Ok(()) } + Stability::Unstable { nightly_feature, allow_toggle: |_target, _enable| Ok(()) } } // Here we list target features that rustc "understands": they can be used in `#[target_feature]` @@ -184,7 +217,7 @@ const ARM_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ "fpregs", Stability::Unstable { nightly_feature: sym::arm_target_feature, - allow_toggle: |target: &Target| { + allow_toggle: |target: &Target, _enable| { // Only allow toggling this if the target has `soft-float` set. With `soft-float`, // `fpregs` isn't needed so changing it cannot affect the ABI. if target.has_feature("soft-float") { @@ -481,7 +514,7 @@ const X86_FEATURES: &[(&str, StabilityUncomputed, ImpliedFeatures)] = &[ "x87", Stability::Unstable { nightly_feature: sym::x87_target_feature, - allow_toggle: |target: &Target| { + allow_toggle: |target: &Target, _enable| { // Only allow toggling this if the target has `soft-float` set. With `soft-float`, // `fpregs` isn't needed so changing it cannot affect the ABI. if target.has_feature("soft-float") { -- cgit 1.4.1-3-g733a5 From efb98b6552abd00c58a2c1dd171b9086edf28214 Mon Sep 17 00:00:00 2001 From: Jonathan Dönszelmann Date: Fri, 13 Dec 2024 14:47:11 +0100 Subject: rename rustc_attr to rustc_attr_parsing and create rustc_attr_data_structures --- Cargo.lock | 59 ++- compiler/rustc_ast_passes/Cargo.toml | 2 +- compiler/rustc_ast_passes/src/ast_validation.rs | 2 +- compiler/rustc_attr/Cargo.toml | 20 - compiler/rustc_attr/messages.ftl | 124 ------ .../rustc_attr/src/attributes/allow_unstable.rs | 49 --- compiler/rustc_attr/src/attributes/cfg.rs | 255 ------------- compiler/rustc_attr/src/attributes/confusables.rs | 22 -- compiler/rustc_attr/src/attributes/deprecation.rs | 149 -------- compiler/rustc_attr/src/attributes/mod.rs | 17 - compiler/rustc_attr/src/attributes/repr.rs | 216 ----------- compiler/rustc_attr/src/attributes/stability.rs | 385 ------------------- compiler/rustc_attr/src/attributes/transparency.rs | 35 -- compiler/rustc_attr/src/attributes/util.rs | 36 -- compiler/rustc_attr/src/lib.rs | 40 -- compiler/rustc_attr/src/session_diagnostics.rs | 407 -------------------- compiler/rustc_attr/src/types.rs | 262 ------------- compiler/rustc_attr_data_structures/Cargo.toml | 20 + .../rustc_attr_data_structures/src/attributes.rs | 106 ++++++ compiler/rustc_attr_data_structures/src/lib.rs | 16 + .../rustc_attr_data_structures/src/stability.rs | 200 ++++++++++ compiler/rustc_attr_data_structures/src/version.rs | 21 ++ compiler/rustc_attr_parsing/Cargo.toml | 21 ++ compiler/rustc_attr_parsing/messages.ftl | 124 ++++++ .../src/attributes/allow_unstable.rs | 49 +++ compiler/rustc_attr_parsing/src/attributes/cfg.rs | 254 +++++++++++++ .../src/attributes/confusables.rs | 21 ++ .../src/attributes/deprecation.rs | 149 ++++++++ compiler/rustc_attr_parsing/src/attributes/mod.rs | 17 + compiler/rustc_attr_parsing/src/attributes/repr.rs | 215 +++++++++++ .../rustc_attr_parsing/src/attributes/stability.rs | 385 +++++++++++++++++++ .../src/attributes/transparency.rs | 36 ++ compiler/rustc_attr_parsing/src/attributes/util.rs | 36 ++ compiler/rustc_attr_parsing/src/lib.rs | 22 ++ .../rustc_attr_parsing/src/session_diagnostics.rs | 419 +++++++++++++++++++++ compiler/rustc_builtin_macros/Cargo.toml | 2 +- compiler/rustc_builtin_macros/src/cfg.rs | 2 +- .../src/deriving/coerce_pointee.rs | 2 +- .../src/deriving/generic/mod.rs | 2 +- compiler/rustc_codegen_gcc/src/attributes.rs | 4 +- compiler/rustc_codegen_gcc/src/lib.rs | 2 +- compiler/rustc_codegen_llvm/Cargo.toml | 2 +- compiler/rustc_codegen_llvm/src/attributes.rs | 2 +- compiler/rustc_codegen_llvm/src/callee.rs | 2 +- compiler/rustc_codegen_ssa/Cargo.toml | 2 +- compiler/rustc_codegen_ssa/src/back/link.rs | 2 +- .../rustc_codegen_ssa/src/back/symbol_export.rs | 3 +- compiler/rustc_codegen_ssa/src/base.rs | 2 +- compiler/rustc_codegen_ssa/src/codegen_attrs.rs | 4 +- compiler/rustc_codegen_ssa/src/mir/naked_asm.rs | 2 +- compiler/rustc_codegen_ssa/src/target_features.rs | 2 +- compiler/rustc_const_eval/Cargo.toml | 2 +- .../rustc_const_eval/src/check_consts/check.rs | 2 +- compiler/rustc_const_eval/src/check_consts/mod.rs | 2 +- compiler/rustc_driver_impl/Cargo.toml | 2 +- compiler/rustc_driver_impl/src/lib.rs | 2 +- compiler/rustc_expand/Cargo.toml | 2 +- compiler/rustc_expand/src/base.rs | 4 +- compiler/rustc_expand/src/config.rs | 2 +- compiler/rustc_expand/src/expand.rs | 2 +- compiler/rustc_expand/src/mbe/macro_rules.rs | 2 +- compiler/rustc_hir_analysis/Cargo.toml | 2 +- compiler/rustc_hir_analysis/src/check/check.rs | 2 +- compiler/rustc_hir_typeck/Cargo.toml | 2 +- compiler/rustc_hir_typeck/src/method/suggest.rs | 2 +- compiler/rustc_interface/Cargo.toml | 2 +- compiler/rustc_interface/src/util.rs | 2 +- compiler/rustc_lint/Cargo.toml | 2 +- compiler/rustc_lint/src/nonstandard_style.rs | 2 +- compiler/rustc_lint/src/types/literal.rs | 2 +- compiler/rustc_metadata/Cargo.toml | 2 +- compiler/rustc_metadata/src/native_libs.rs | 2 +- .../src/rmeta/decoder/cstore_impl.rs | 2 +- compiler/rustc_metadata/src/rmeta/mod.rs | 2 +- compiler/rustc_middle/Cargo.toml | 2 +- .../rustc_middle/src/middle/codegen_fn_attrs.rs | 2 +- compiler/rustc_middle/src/middle/stability.rs | 2 +- compiler/rustc_middle/src/mir/mono.rs | 2 +- compiler/rustc_middle/src/query/erase.rs | 14 +- compiler/rustc_middle/src/query/mod.rs | 2 +- compiler/rustc_middle/src/ty/instance.rs | 2 +- compiler/rustc_middle/src/ty/mod.rs | 2 +- compiler/rustc_middle/src/ty/parameterized.rs | 8 +- compiler/rustc_mir_transform/Cargo.toml | 2 +- .../rustc_mir_transform/src/cross_crate_inline.rs | 2 +- compiler/rustc_mir_transform/src/inline.rs | 2 +- compiler/rustc_monomorphize/Cargo.toml | 2 +- compiler/rustc_monomorphize/src/partitioning.rs | 5 +- compiler/rustc_passes/Cargo.toml | 2 +- compiler/rustc_passes/src/lib_features.rs | 2 +- compiler/rustc_passes/src/stability.rs | 2 +- compiler/rustc_privacy/Cargo.toml | 2 +- compiler/rustc_privacy/src/lib.rs | 2 +- compiler/rustc_resolve/Cargo.toml | 2 +- compiler/rustc_resolve/src/build_reduced_graph.rs | 2 +- compiler/rustc_resolve/src/macros.rs | 2 +- compiler/rustc_session/src/lib.rs | 3 - compiler/rustc_session/src/version.rs | 29 -- compiler/rustc_trait_selection/Cargo.toml | 2 +- .../src/error_reporting/traits/on_unimplemented.rs | 2 +- src/librustdoc/clean/types.rs | 2 +- src/librustdoc/html/format.rs | 2 +- src/librustdoc/html/render/mod.rs | 5 +- src/librustdoc/json/conversions.rs | 6 +- src/librustdoc/lib.rs | 2 +- src/librustdoc/passes/propagate_stability.rs | 2 +- src/tools/clippy/clippy_lints/src/approx_const.rs | 3 +- src/tools/clippy/clippy_lints/src/booleans.rs | 3 +- .../clippy/clippy_lints/src/incompatible_msrv.rs | 4 +- src/tools/clippy/clippy_lints/src/lib.rs | 2 +- .../clippy/clippy_lints/src/std_instead_of_core.rs | 2 +- .../utils/internal_lints/lint_without_lint_pass.rs | 2 +- src/tools/clippy/clippy_utils/src/lib.rs | 2 +- src/tools/clippy/clippy_utils/src/msrvs.rs | 4 +- .../clippy_utils/src/qualify_min_const_fn.rs | 6 +- src/tools/miri/src/lib.rs | 2 +- src/tools/miri/src/machine.rs | 2 +- 117 files changed, 2257 insertions(+), 2171 deletions(-) delete mode 100644 compiler/rustc_attr/Cargo.toml delete mode 100644 compiler/rustc_attr/messages.ftl delete mode 100644 compiler/rustc_attr/src/attributes/allow_unstable.rs delete mode 100644 compiler/rustc_attr/src/attributes/cfg.rs delete mode 100644 compiler/rustc_attr/src/attributes/confusables.rs delete mode 100644 compiler/rustc_attr/src/attributes/deprecation.rs delete mode 100644 compiler/rustc_attr/src/attributes/mod.rs delete mode 100644 compiler/rustc_attr/src/attributes/repr.rs delete mode 100644 compiler/rustc_attr/src/attributes/stability.rs delete mode 100644 compiler/rustc_attr/src/attributes/transparency.rs delete mode 100644 compiler/rustc_attr/src/attributes/util.rs delete mode 100644 compiler/rustc_attr/src/lib.rs delete mode 100644 compiler/rustc_attr/src/session_diagnostics.rs delete mode 100644 compiler/rustc_attr/src/types.rs create mode 100644 compiler/rustc_attr_data_structures/Cargo.toml create mode 100644 compiler/rustc_attr_data_structures/src/attributes.rs create mode 100644 compiler/rustc_attr_data_structures/src/lib.rs create mode 100644 compiler/rustc_attr_data_structures/src/stability.rs create mode 100644 compiler/rustc_attr_data_structures/src/version.rs create mode 100644 compiler/rustc_attr_parsing/Cargo.toml create mode 100644 compiler/rustc_attr_parsing/messages.ftl create mode 100644 compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs create mode 100644 compiler/rustc_attr_parsing/src/attributes/cfg.rs create mode 100644 compiler/rustc_attr_parsing/src/attributes/confusables.rs create mode 100644 compiler/rustc_attr_parsing/src/attributes/deprecation.rs create mode 100644 compiler/rustc_attr_parsing/src/attributes/mod.rs create mode 100644 compiler/rustc_attr_parsing/src/attributes/repr.rs create mode 100644 compiler/rustc_attr_parsing/src/attributes/stability.rs create mode 100644 compiler/rustc_attr_parsing/src/attributes/transparency.rs create mode 100644 compiler/rustc_attr_parsing/src/attributes/util.rs create mode 100644 compiler/rustc_attr_parsing/src/lib.rs create mode 100644 compiler/rustc_attr_parsing/src/session_diagnostics.rs delete mode 100644 compiler/rustc_session/src/version.rs (limited to 'compiler/rustc_codegen_llvm') diff --git a/Cargo.lock b/Cargo.lock index 5eeb855aacb..5a8f2e2f9ce 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3354,7 +3354,7 @@ dependencies = [ "itertools", "rustc_ast", "rustc_ast_pretty", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_feature", @@ -3380,7 +3380,7 @@ dependencies = [ ] [[package]] -name = "rustc_attr" +name = "rustc_attr_data_structures" version = "0.0.0" dependencies = [ "rustc_abi", @@ -3397,6 +3397,25 @@ dependencies = [ "rustc_span", ] +[[package]] +name = "rustc_attr_parsing" +version = "0.0.0" +dependencies = [ + "rustc_abi", + "rustc_ast", + "rustc_ast_pretty", + "rustc_attr_data_structures", + "rustc_data_structures", + "rustc_errors", + "rustc_feature", + "rustc_fluent_macro", + "rustc_lexer", + "rustc_macros", + "rustc_serialize", + "rustc_session", + "rustc_span", +] + [[package]] name = "rustc_baked_icu_data" version = "0.0.0" @@ -3441,7 +3460,7 @@ version = "0.0.0" dependencies = [ "rustc_ast", "rustc_ast_pretty", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_expand", @@ -3473,7 +3492,7 @@ dependencies = [ "rustc-demangle", "rustc_abi", "rustc_ast", - "rustc_attr", + "rustc_attr_parsing", "rustc_codegen_ssa", "rustc_data_structures", "rustc_errors", @@ -3515,7 +3534,7 @@ dependencies = [ "rustc_arena", "rustc_ast", "rustc_ast_pretty", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_fluent_macro", @@ -3553,7 +3572,7 @@ dependencies = [ "rustc_abi", "rustc_apfloat", "rustc_ast", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_fluent_macro", @@ -3620,7 +3639,7 @@ dependencies = [ "rustc_ast_lowering", "rustc_ast_passes", "rustc_ast_pretty", - "rustc_attr", + "rustc_attr_parsing", "rustc_borrowck", "rustc_builtin_macros", "rustc_codegen_ssa", @@ -3724,7 +3743,7 @@ dependencies = [ "rustc_ast", "rustc_ast_passes", "rustc_ast_pretty", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_feature", @@ -3799,7 +3818,7 @@ dependencies = [ "rustc_abi", "rustc_arena", "rustc_ast", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_feature", @@ -3838,7 +3857,7 @@ dependencies = [ "rustc_abi", "rustc_ast", "rustc_ast_ir", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_fluent_macro", @@ -3927,7 +3946,7 @@ dependencies = [ "rustc_ast_lowering", "rustc_ast_passes", "rustc_ast_pretty", - "rustc_attr", + "rustc_attr_parsing", "rustc_borrowck", "rustc_builtin_macros", "rustc_codegen_llvm", @@ -3983,7 +4002,7 @@ dependencies = [ "rustc_abi", "rustc_ast", "rustc_ast_pretty", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_feature", @@ -4057,7 +4076,7 @@ dependencies = [ "odht", "rustc_abi", "rustc_ast", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_expand", @@ -4094,7 +4113,7 @@ dependencies = [ "rustc_arena", "rustc_ast", "rustc_ast_ir", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_error_messages", "rustc_errors", @@ -4173,7 +4192,7 @@ dependencies = [ "rustc_abi", "rustc_arena", "rustc_ast", - "rustc_attr", + "rustc_attr_parsing", "rustc_const_eval", "rustc_data_structures", "rustc_errors", @@ -4199,7 +4218,7 @@ name = "rustc_monomorphize" version = "0.0.0" dependencies = [ "rustc_abi", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_fluent_macro", @@ -4267,7 +4286,7 @@ dependencies = [ "rustc_abi", "rustc_ast", "rustc_ast_pretty", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_expand", @@ -4314,7 +4333,7 @@ name = "rustc_privacy" version = "0.0.0" dependencies = [ "rustc_ast", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_fluent_macro", @@ -4378,7 +4397,7 @@ dependencies = [ "rustc_arena", "rustc_ast", "rustc_ast_pretty", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_expand", @@ -4535,7 +4554,7 @@ dependencies = [ "rustc_abi", "rustc_ast", "rustc_ast_ir", - "rustc_attr", + "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_fluent_macro", diff --git a/compiler/rustc_ast_passes/Cargo.toml b/compiler/rustc_ast_passes/Cargo.toml index eace5ce8208..8046765647e 100644 --- a/compiler/rustc_ast_passes/Cargo.toml +++ b/compiler/rustc_ast_passes/Cargo.toml @@ -8,7 +8,7 @@ edition = "2021" itertools = "0.12" rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_feature = { path = "../rustc_feature" } diff --git a/compiler/rustc_ast_passes/src/ast_validation.rs b/compiler/rustc_ast_passes/src/ast_validation.rs index a42e3445c8d..3f071f5ecb5 100644 --- a/compiler/rustc_ast_passes/src/ast_validation.rs +++ b/compiler/rustc_ast_passes/src/ast_validation.rs @@ -342,7 +342,7 @@ impl<'a> AstValidator<'a> { sym::forbid, sym::warn, ]; - !arr.contains(&attr.name_or_empty()) && rustc_attr::is_builtin_attr(*attr) + !arr.contains(&attr.name_or_empty()) && rustc_attr_parsing::is_builtin_attr(*attr) }) .for_each(|attr| { if attr.is_doc_comment() { diff --git a/compiler/rustc_attr/Cargo.toml b/compiler/rustc_attr/Cargo.toml deleted file mode 100644 index 3b24452450a..00000000000 --- a/compiler/rustc_attr/Cargo.toml +++ /dev/null @@ -1,20 +0,0 @@ -[package] -name = "rustc_attr" -version = "0.0.0" -edition = "2021" - -[dependencies] -# tidy-alphabetical-start -rustc_abi = { path = "../rustc_abi" } -rustc_ast = { path = "../rustc_ast" } -rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_data_structures = { path = "../rustc_data_structures" } -rustc_errors = { path = "../rustc_errors" } -rustc_feature = { path = "../rustc_feature" } -rustc_fluent_macro = { path = "../rustc_fluent_macro" } -rustc_lexer = { path = "../rustc_lexer" } -rustc_macros = { path = "../rustc_macros" } -rustc_serialize = { path = "../rustc_serialize" } -rustc_session = { path = "../rustc_session" } -rustc_span = { path = "../rustc_span" } -# tidy-alphabetical-end diff --git a/compiler/rustc_attr/messages.ftl b/compiler/rustc_attr/messages.ftl deleted file mode 100644 index 235ab7572c4..00000000000 --- a/compiler/rustc_attr/messages.ftl +++ /dev/null @@ -1,124 +0,0 @@ -attr_cfg_predicate_identifier = - `cfg` predicate key must be an identifier - -attr_deprecated_item_suggestion = - suggestions on deprecated items are unstable - .help = add `#![feature(deprecated_suggestion)]` to the crate root - .note = see #94785 for more details - -attr_expected_one_cfg_pattern = - expected 1 cfg-pattern - -attr_expected_single_version_literal = - expected single version literal - -attr_expected_version_literal = - expected a version literal - -attr_expects_feature_list = - `{$name}` expects a list of feature names - -attr_expects_features = - `{$name}` expects feature names - -attr_incorrect_meta_item = - incorrect meta item - -attr_incorrect_repr_format_align_one_arg = - incorrect `repr(align)` attribute format: `align` takes exactly one argument in parentheses - -attr_incorrect_repr_format_expect_literal_integer = - incorrect `repr(align)` attribute format: `align` expects a literal integer as argument - -attr_incorrect_repr_format_generic = - incorrect `repr({$repr_arg})` attribute format - .suggestion = use parentheses instead - -attr_incorrect_repr_format_packed_expect_integer = - incorrect `repr(packed)` attribute format: `packed` expects a literal integer as argument - -attr_incorrect_repr_format_packed_one_or_zero_arg = - incorrect `repr(packed)` attribute format: `packed` takes exactly one parenthesized argument, or no parentheses at all - -attr_invalid_issue_string = - `issue` must be a non-zero numeric string or "none" - .must_not_be_zero = `issue` must not be "0", use "none" instead - .empty = cannot parse integer from empty string - .invalid_digit = invalid digit found in string - .pos_overflow = number too large to fit in target type - .neg_overflow = number too small to fit in target type - -attr_invalid_predicate = - invalid predicate `{$predicate}` - -attr_invalid_repr_align_need_arg = - invalid `repr(align)` attribute: `align` needs an argument - .suggestion = supply an argument here - -attr_invalid_repr_generic = - invalid `repr({$repr_arg})` attribute: {$error_part} - -attr_invalid_repr_hint_no_paren = - invalid representation hint: `{$name}` does not take a parenthesized argument list - -attr_invalid_repr_hint_no_value = - invalid representation hint: `{$name}` does not take a value - -attr_invalid_since = - 'since' must be a Rust version number, such as "1.31.0" - -attr_missing_feature = - missing 'feature' - -attr_missing_issue = - missing 'issue' - -attr_missing_note = - missing 'note' - -attr_missing_since = - missing 'since' - -attr_multiple_item = - multiple '{$item}' items - -attr_multiple_stability_levels = - multiple stability levels - -attr_non_ident_feature = - 'feature' is not an identifier - -attr_rustc_allowed_unstable_pairing = - `rustc_allowed_through_unstable_modules` attribute must be paired with a `stable` attribute - -attr_rustc_const_stable_indirect_pairing = - `const_stable_indirect` attribute does not make sense on `rustc_const_stable` function, its behavior is already implied - -attr_rustc_promotable_pairing = - `rustc_promotable` attribute must be paired with either a `rustc_const_unstable` or a `rustc_const_stable` attribute - -attr_soft_no_args = - `soft` should not have any arguments - -attr_unknown_meta_item = - unknown meta item '{$item}' - .label = expected one of {$expected} - -attr_unknown_version_literal = - unknown version literal format, assuming it refers to a future version - -attr_unstable_cfg_target_compact = - compact `cfg(target(..))` is experimental and subject to change - -attr_unsupported_literal_cfg_boolean = - literal in `cfg` predicate value must be a boolean -attr_unsupported_literal_cfg_string = - literal in `cfg` predicate value must be a string -attr_unsupported_literal_deprecated_kv_pair = - item in `deprecated` must be a key/value pair -attr_unsupported_literal_deprecated_string = - literal in `deprecated` value must be a string -attr_unsupported_literal_generic = - unsupported literal -attr_unsupported_literal_suggestion = - consider removing the prefix diff --git a/compiler/rustc_attr/src/attributes/allow_unstable.rs b/compiler/rustc_attr/src/attributes/allow_unstable.rs deleted file mode 100644 index b9f841800ab..00000000000 --- a/compiler/rustc_attr/src/attributes/allow_unstable.rs +++ /dev/null @@ -1,49 +0,0 @@ -use rustc_ast::attr::{AttributeExt, filter_by_name}; -use rustc_session::Session; -use rustc_span::symbol::{Symbol, sym}; - -use crate::session_diagnostics; - -pub fn allow_internal_unstable<'a>( - sess: &'a Session, - attrs: &'a [impl AttributeExt], -) -> impl Iterator + 'a { - allow_unstable(sess, attrs, sym::allow_internal_unstable) -} - -pub fn rustc_allow_const_fn_unstable<'a>( - sess: &'a Session, - attrs: &'a [impl AttributeExt], -) -> impl Iterator + 'a { - allow_unstable(sess, attrs, sym::rustc_allow_const_fn_unstable) -} - -fn allow_unstable<'a>( - sess: &'a Session, - attrs: &'a [impl AttributeExt], - symbol: Symbol, -) -> impl Iterator + 'a { - let attrs = filter_by_name(attrs, symbol); - let list = attrs - .filter_map(move |attr| { - attr.meta_item_list().or_else(|| { - sess.dcx().emit_err(session_diagnostics::ExpectsFeatureList { - span: attr.span(), - name: symbol.to_ident_string(), - }); - None - }) - }) - .flatten(); - - list.into_iter().filter_map(move |it| { - let name = it.ident().map(|ident| ident.name); - if name.is_none() { - sess.dcx().emit_err(session_diagnostics::ExpectsFeatures { - span: it.span(), - name: symbol.to_ident_string(), - }); - } - name - }) -} diff --git a/compiler/rustc_attr/src/attributes/cfg.rs b/compiler/rustc_attr/src/attributes/cfg.rs deleted file mode 100644 index 2dfdb2e61b4..00000000000 --- a/compiler/rustc_attr/src/attributes/cfg.rs +++ /dev/null @@ -1,255 +0,0 @@ -//! Parsing and validation of builtin attributes - -use rustc_ast::{self as ast, LitKind, MetaItem, MetaItemInner, MetaItemKind, MetaItemLit, NodeId}; -use rustc_ast_pretty::pprust; -use rustc_feature::{Features, GatedCfg, find_gated_cfg}; -use rustc_session::RustcVersion; -use rustc_session::Session; -use rustc_session::config::ExpectedValues; -use rustc_session::lint::BuiltinLintDiag; -use rustc_session::lint::builtin::UNEXPECTED_CFGS; -use rustc_session::parse::feature_err; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, kw, sym}; - -use crate::{fluent_generated, parse_version}; -use crate::session_diagnostics; -use crate::util::UnsupportedLiteralReason; - -#[derive(Clone, Debug)] -pub struct Condition { - pub name: Symbol, - pub name_span: Span, - pub value: Option, - pub value_span: Option, - pub span: Span, -} - -/// Tests if a cfg-pattern matches the cfg set -pub fn cfg_matches( - cfg: &ast::MetaItemInner, - sess: &Session, - lint_node_id: NodeId, - features: Option<&Features>, -) -> bool { - eval_condition(cfg, sess, features, &mut |cfg| { - try_gate_cfg(cfg.name, cfg.span, sess, features); - match sess.psess.check_config.expecteds.get(&cfg.name) { - Some(ExpectedValues::Some(values)) if !values.contains(&cfg.value) => { - sess.psess.buffer_lint( - UNEXPECTED_CFGS, - cfg.span, - lint_node_id, - BuiltinLintDiag::UnexpectedCfgValue( - (cfg.name, cfg.name_span), - cfg.value.map(|v| (v, cfg.value_span.unwrap())), - ), - ); - } - None if sess.psess.check_config.exhaustive_names => { - sess.psess.buffer_lint( - UNEXPECTED_CFGS, - cfg.span, - lint_node_id, - BuiltinLintDiag::UnexpectedCfgName( - (cfg.name, cfg.name_span), - cfg.value.map(|v| (v, cfg.value_span.unwrap())), - ), - ); - } - _ => { /* not unexpected */ } - } - sess.psess.config.contains(&(cfg.name, cfg.value)) - }) -} - -fn try_gate_cfg(name: Symbol, span: Span, sess: &Session, features: Option<&Features>) { - let gate = find_gated_cfg(|sym| sym == name); - if let (Some(feats), Some(gated_cfg)) = (features, gate) { - gate_cfg(gated_cfg, span, sess, feats); - } -} - -#[allow(rustc::untranslatable_diagnostic)] // FIXME: make this translatable -fn gate_cfg(gated_cfg: &GatedCfg, cfg_span: Span, sess: &Session, features: &Features) { - let (cfg, feature, has_feature) = gated_cfg; - if !has_feature(features) && !cfg_span.allows_unstable(*feature) { - let explain = format!("`cfg({cfg})` is experimental and subject to change"); - feature_err(sess, *feature, cfg_span, explain).emit(); - } -} - -/// Evaluate a cfg-like condition (with `any` and `all`), using `eval` to -/// evaluate individual items. -pub fn eval_condition( - cfg: &ast::MetaItemInner, - sess: &Session, - features: Option<&Features>, - eval: &mut impl FnMut(Condition) -> bool, -) -> bool { - let dcx = sess.dcx(); - - let cfg = match cfg { - ast::MetaItemInner::MetaItem(meta_item) => meta_item, - ast::MetaItemInner::Lit(MetaItemLit { kind: LitKind::Bool(b), .. }) => { - if let Some(features) = features { - // we can't use `try_gate_cfg` as symbols don't differentiate between `r#true` - // and `true`, and we want to keep the former working without feature gate - gate_cfg( - &( - if *b { kw::True } else { kw::False }, - sym::cfg_boolean_literals, - |features: &Features| features.cfg_boolean_literals(), - ), - cfg.span(), - sess, - features, - ); - } - return *b; - } - _ => { - dcx.emit_err(session_diagnostics::UnsupportedLiteral { - span: cfg.span(), - reason: UnsupportedLiteralReason::CfgBoolean, - is_bytestr: false, - start_point_span: sess.source_map().start_point(cfg.span()), - }); - return false; - } - }; - - match &cfg.kind { - ast::MetaItemKind::List(mis) if cfg.name_or_empty() == sym::version => { - try_gate_cfg(sym::version, cfg.span, sess, features); - let (min_version, span) = match &mis[..] { - [MetaItemInner::Lit(MetaItemLit { kind: LitKind::Str(sym, ..), span, .. })] => { - (sym, span) - } - [ - MetaItemInner::Lit(MetaItemLit { span, .. }) - | MetaItemInner::MetaItem(MetaItem { span, .. }), - ] => { - dcx.emit_err(session_diagnostics::ExpectedVersionLiteral { span: *span }); - return false; - } - [..] => { - dcx.emit_err(session_diagnostics::ExpectedSingleVersionLiteral { - span: cfg.span, - }); - return false; - } - }; - let Some(min_version) = parse_version(*min_version) else { - dcx.emit_warn(session_diagnostics::UnknownVersionLiteral { span: *span }); - return false; - }; - - // See https://github.com/rust-lang/rust/issues/64796#issuecomment-640851454 for details - if sess.psess.assume_incomplete_release { - RustcVersion::CURRENT > min_version - } else { - RustcVersion::CURRENT >= min_version - } - } - ast::MetaItemKind::List(mis) => { - for mi in mis.iter() { - if mi.meta_item_or_bool().is_none() { - dcx.emit_err(session_diagnostics::UnsupportedLiteral { - span: mi.span(), - reason: UnsupportedLiteralReason::Generic, - is_bytestr: false, - start_point_span: sess.source_map().start_point(mi.span()), - }); - return false; - } - } - - // The unwraps below may look dangerous, but we've already asserted - // that they won't fail with the loop above. - match cfg.name_or_empty() { - sym::any => mis - .iter() - // We don't use any() here, because we want to evaluate all cfg condition - // as eval_condition can (and does) extra checks - .fold(false, |res, mi| res | eval_condition(mi, sess, features, eval)), - sym::all => mis - .iter() - // We don't use all() here, because we want to evaluate all cfg condition - // as eval_condition can (and does) extra checks - .fold(true, |res, mi| res & eval_condition(mi, sess, features, eval)), - sym::not => { - let [mi] = mis.as_slice() else { - dcx.emit_err(session_diagnostics::ExpectedOneCfgPattern { span: cfg.span }); - return false; - }; - - !eval_condition(mi, sess, features, eval) - } - sym::target => { - if let Some(features) = features - && !features.cfg_target_compact() - { - feature_err( - sess, - sym::cfg_target_compact, - cfg.span, - fluent_generated::attr_unstable_cfg_target_compact, - ) - .emit(); - } - - mis.iter().fold(true, |res, mi| { - let Some(mut mi) = mi.meta_item().cloned() else { - dcx.emit_err(session_diagnostics::CfgPredicateIdentifier { - span: mi.span(), - }); - return false; - }; - - if let [seg, ..] = &mut mi.path.segments[..] { - seg.ident.name = Symbol::intern(&format!("target_{}", seg.ident.name)); - } - - res & eval_condition( - &ast::MetaItemInner::MetaItem(mi), - sess, - features, - eval, - ) - }) - } - _ => { - dcx.emit_err(session_diagnostics::InvalidPredicate { - span: cfg.span, - predicate: pprust::path_to_string(&cfg.path), - }); - false - } - } - } - ast::MetaItemKind::Word | MetaItemKind::NameValue(..) if cfg.path.segments.len() != 1 => { - dcx.emit_err(session_diagnostics::CfgPredicateIdentifier { span: cfg.path.span }); - true - } - MetaItemKind::NameValue(lit) if !lit.kind.is_str() => { - dcx.emit_err(session_diagnostics::UnsupportedLiteral { - span: lit.span, - reason: UnsupportedLiteralReason::CfgString, - is_bytestr: lit.kind.is_bytestr(), - start_point_span: sess.source_map().start_point(lit.span), - }); - true - } - ast::MetaItemKind::Word | ast::MetaItemKind::NameValue(..) => { - let ident = cfg.ident().expect("multi-segment cfg predicate"); - eval(Condition { - name: ident.name, - name_span: ident.span, - value: cfg.value_str(), - value_span: cfg.name_value_literal_span(), - span: cfg.span, - }) - } - } -} diff --git a/compiler/rustc_attr/src/attributes/confusables.rs b/compiler/rustc_attr/src/attributes/confusables.rs deleted file mode 100644 index 988cb32f244..00000000000 --- a/compiler/rustc_attr/src/attributes/confusables.rs +++ /dev/null @@ -1,22 +0,0 @@ -//! Parsing and validation of builtin attributes - -use rustc_ast::attr::AttributeExt; -use rustc_ast::MetaItemInner; -use rustc_span::symbol::Symbol; - - -/// Read the content of a `rustc_confusables` attribute, and return the list of candidate names. -pub fn parse_confusables(attr: &impl AttributeExt) -> Option> { - let metas = attr.meta_item_list()?; - - let mut candidates = Vec::new(); - - for meta in metas { - let MetaItemInner::Lit(meta_lit) = meta else { - return None; - }; - candidates.push(meta_lit.symbol); - } - - Some(candidates) -} diff --git a/compiler/rustc_attr/src/attributes/deprecation.rs b/compiler/rustc_attr/src/attributes/deprecation.rs deleted file mode 100644 index c7f13fef276..00000000000 --- a/compiler/rustc_attr/src/attributes/deprecation.rs +++ /dev/null @@ -1,149 +0,0 @@ -//! Parsing and validation of builtin attributes - -use rustc_ast::attr::AttributeExt; -use rustc_ast::{MetaItemInner, MetaItem}; -use rustc_ast_pretty::pprust; -use rustc_feature::Features; -use crate::types::{DeprecatedSince, Deprecation}; -use rustc_session::Session; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; -use crate::{parse_version, session_diagnostics}; - -use super::util::UnsupportedLiteralReason; - -/// Finds the deprecation attribute. `None` if none exists. -pub fn find_deprecation( - sess: &Session, - features: &Features, - attrs: &[impl AttributeExt], -) -> Option<(Deprecation, Span)> { - let mut depr: Option<(Deprecation, Span)> = None; - let is_rustc = features.staged_api(); - - 'outer: for attr in attrs { - if !attr.has_name(sym::deprecated) { - continue; - } - - let mut since = None; - let mut note = None; - let mut suggestion = None; - - if attr.is_doc_comment() { - continue; - } else if attr.is_word() { - } else if let Some(value) = attr.value_str() { - note = Some(value) - } else if let Some(list) = attr.meta_item_list() { - let get = |meta: &MetaItem, item: &mut Option| { - if item.is_some() { - sess.dcx().emit_err(session_diagnostics::MultipleItem { - span: meta.span, - item: pprust::path_to_string(&meta.path), - }); - return false; - } - if let Some(v) = meta.value_str() { - *item = Some(v); - true - } else { - if let Some(lit) = meta.name_value_literal() { - sess.dcx().emit_err(session_diagnostics::UnsupportedLiteral { - span: lit.span, - reason: UnsupportedLiteralReason::DeprecatedString, - is_bytestr: lit.kind.is_bytestr(), - start_point_span: sess.source_map().start_point(lit.span), - }); - } else { - sess.dcx() - .emit_err(session_diagnostics::IncorrectMetaItem { span: meta.span }); - } - false - } - }; - - for meta in &list { - match meta { - MetaItemInner::MetaItem(mi) => match mi.name_or_empty() { - sym::since => { - if !get(mi, &mut since) { - continue 'outer; - } - } - sym::note => { - if !get(mi, &mut note) { - continue 'outer; - } - } - sym::suggestion => { - if !features.deprecated_suggestion() { - sess.dcx().emit_err( - session_diagnostics::DeprecatedItemSuggestion { - span: mi.span, - is_nightly: sess.is_nightly_build(), - details: (), - }, - ); - } - - if !get(mi, &mut suggestion) { - continue 'outer; - } - } - _ => { - sess.dcx().emit_err(session_diagnostics::UnknownMetaItem { - span: meta.span(), - item: pprust::path_to_string(&mi.path), - expected: if features.deprecated_suggestion() { - &["since", "note", "suggestion"] - } else { - &["since", "note"] - }, - }); - continue 'outer; - } - }, - MetaItemInner::Lit(lit) => { - sess.dcx().emit_err(session_diagnostics::UnsupportedLiteral { - span: lit.span, - reason: UnsupportedLiteralReason::DeprecatedKvPair, - is_bytestr: false, - start_point_span: sess.source_map().start_point(lit.span), - }); - continue 'outer; - } - } - } - } else { - continue; - } - - let since = if let Some(since) = since { - if since.as_str() == "TBD" { - DeprecatedSince::Future - } else if !is_rustc { - DeprecatedSince::NonStandard(since) - } else if let Some(version) = parse_version(since) { - DeprecatedSince::RustcVersion(version) - } else { - sess.dcx().emit_err(session_diagnostics::InvalidSince { span: attr.span() }); - DeprecatedSince::Err - } - } else if is_rustc { - sess.dcx().emit_err(session_diagnostics::MissingSince { span: attr.span() }); - DeprecatedSince::Err - } else { - DeprecatedSince::Unspecified - }; - - if is_rustc && note.is_none() { - sess.dcx().emit_err(session_diagnostics::MissingNote { span: attr.span() }); - continue; - } - - depr = Some((Deprecation { since, note, suggestion }, attr.span())); - } - - depr -} diff --git a/compiler/rustc_attr/src/attributes/mod.rs b/compiler/rustc_attr/src/attributes/mod.rs deleted file mode 100644 index a78e0b54b64..00000000000 --- a/compiler/rustc_attr/src/attributes/mod.rs +++ /dev/null @@ -1,17 +0,0 @@ -mod allow_unstable; -mod cfg; -mod confusables; -mod deprecation; -mod repr; -mod stability; -mod transparency; - -pub mod util; - -pub use allow_unstable::*; -pub use cfg::*; -pub use confusables::*; -pub use deprecation::*; -pub use repr::*; -pub use stability::*; -pub use transparency::*; diff --git a/compiler/rustc_attr/src/attributes/repr.rs b/compiler/rustc_attr/src/attributes/repr.rs deleted file mode 100644 index 803aeabaf18..00000000000 --- a/compiler/rustc_attr/src/attributes/repr.rs +++ /dev/null @@ -1,216 +0,0 @@ -//! Parsing and validation of builtin attributes - -use rustc_abi::Align; -use rustc_ast::attr::AttributeExt; -use rustc_ast::{self as ast, MetaItemKind}; -use crate::types::{ - IntType, ReprAttr::*, -}; -use crate::ReprAttr; -use rustc_session::Session; -use rustc_span::symbol::{Symbol, sym}; -use crate::session_diagnostics::{self, IncorrectReprFormatGenericCause}; - - -/// Parse #[repr(...)] forms. -/// -/// Valid repr contents: any of the primitive integral type names (see -/// `int_type_of_word`, below) to specify enum discriminant type; `C`, to use -/// the same discriminant size that the corresponding C enum would or C -/// structure layout, `packed` to remove padding, and `transparent` to delegate representation -/// concerns to the only non-ZST field. -pub fn find_repr_attrs(sess: &Session, attr: &impl AttributeExt) -> Vec { - if attr.has_name(sym::repr) { parse_repr_attr(sess, attr) } else { Vec::new() } -} - -pub fn parse_repr_attr(sess: &Session, attr: &impl AttributeExt) -> Vec { - assert!(attr.has_name(sym::repr), "expected `#[repr(..)]`, found: {attr:?}"); - let mut acc = Vec::new(); - let dcx = sess.dcx(); - - if let Some(items) = attr.meta_item_list() { - for item in items { - let mut recognised = false; - if item.is_word() { - let hint = match item.name_or_empty() { - sym::Rust => Some(ReprRust), - sym::C => Some(ReprC), - sym::packed => Some(ReprPacked(Align::ONE)), - sym::simd => Some(ReprSimd), - sym::transparent => Some(ReprTransparent), - sym::align => { - sess.dcx().emit_err(session_diagnostics::InvalidReprAlignNeedArg { - span: item.span(), - }); - recognised = true; - None - } - name => int_type_of_word(name).map(ReprInt), - }; - - if let Some(h) = hint { - recognised = true; - acc.push(h); - } - } else if let Some((name, value)) = item.singleton_lit_list() { - let mut literal_error = None; - let mut err_span = item.span(); - if name == sym::align { - recognised = true; - match parse_alignment(&value.kind) { - Ok(literal) => acc.push(ReprAlign(literal)), - Err(message) => { - err_span = value.span; - literal_error = Some(message) - } - }; - } else if name == sym::packed { - recognised = true; - match parse_alignment(&value.kind) { - Ok(literal) => acc.push(ReprPacked(literal)), - Err(message) => { - err_span = value.span; - literal_error = Some(message) - } - }; - } else if matches!(name, sym::Rust | sym::C | sym::simd | sym::transparent) - || int_type_of_word(name).is_some() - { - recognised = true; - sess.dcx().emit_err(session_diagnostics::InvalidReprHintNoParen { - span: item.span(), - name: name.to_ident_string(), - }); - } - if let Some(literal_error) = literal_error { - sess.dcx().emit_err(session_diagnostics::InvalidReprGeneric { - span: err_span, - repr_arg: name.to_ident_string(), - error_part: literal_error, - }); - } - } else if let Some(meta_item) = item.meta_item() { - match &meta_item.kind { - MetaItemKind::NameValue(value) => { - if meta_item.has_name(sym::align) || meta_item.has_name(sym::packed) { - let name = meta_item.name_or_empty().to_ident_string(); - recognised = true; - sess.dcx().emit_err(session_diagnostics::IncorrectReprFormatGeneric { - span: item.span(), - repr_arg: &name, - cause: IncorrectReprFormatGenericCause::from_lit_kind( - item.span(), - &value.kind, - &name, - ), - }); - } else if matches!( - meta_item.name_or_empty(), - sym::Rust | sym::C | sym::simd | sym::transparent - ) || int_type_of_word(meta_item.name_or_empty()).is_some() - { - recognised = true; - sess.dcx().emit_err(session_diagnostics::InvalidReprHintNoValue { - span: meta_item.span, - name: meta_item.name_or_empty().to_ident_string(), - }); - } - } - MetaItemKind::List(nested_items) => { - if meta_item.has_name(sym::align) { - recognised = true; - if let [nested_item] = nested_items.as_slice() { - sess.dcx().emit_err( - session_diagnostics::IncorrectReprFormatExpectInteger { - span: nested_item.span(), - }, - ); - } else { - sess.dcx().emit_err( - session_diagnostics::IncorrectReprFormatAlignOneArg { - span: meta_item.span, - }, - ); - } - } else if meta_item.has_name(sym::packed) { - recognised = true; - if let [nested_item] = nested_items.as_slice() { - sess.dcx().emit_err( - session_diagnostics::IncorrectReprFormatPackedExpectInteger { - span: nested_item.span(), - }, - ); - } else { - sess.dcx().emit_err( - session_diagnostics::IncorrectReprFormatPackedOneOrZeroArg { - span: meta_item.span, - }, - ); - } - } else if matches!( - meta_item.name_or_empty(), - sym::Rust | sym::C | sym::simd | sym::transparent - ) || int_type_of_word(meta_item.name_or_empty()).is_some() - { - recognised = true; - sess.dcx().emit_err(session_diagnostics::InvalidReprHintNoParen { - span: meta_item.span, - name: meta_item.name_or_empty().to_ident_string(), - }); - } - } - _ => (), - } - } - if !recognised { - // Not a word we recognize. This will be caught and reported by - // the `check_mod_attrs` pass, but this pass doesn't always run - // (e.g. if we only pretty-print the source), so we have to gate - // the `span_delayed_bug` call as follows: - if sess.opts.pretty.map_or(true, |pp| pp.needs_analysis()) { - dcx.span_delayed_bug(item.span(), "unrecognized representation hint"); - } - } - } - } - acc -} - -fn int_type_of_word(s: Symbol) -> Option { - use crate::types::IntType::*; - - match s { - sym::i8 => Some(SignedInt(ast::IntTy::I8)), - sym::u8 => Some(UnsignedInt(ast::UintTy::U8)), - sym::i16 => Some(SignedInt(ast::IntTy::I16)), - sym::u16 => Some(UnsignedInt(ast::UintTy::U16)), - sym::i32 => Some(SignedInt(ast::IntTy::I32)), - sym::u32 => Some(UnsignedInt(ast::UintTy::U32)), - sym::i64 => Some(SignedInt(ast::IntTy::I64)), - sym::u64 => Some(UnsignedInt(ast::UintTy::U64)), - sym::i128 => Some(SignedInt(ast::IntTy::I128)), - sym::u128 => Some(UnsignedInt(ast::UintTy::U128)), - sym::isize => Some(SignedInt(ast::IntTy::Isize)), - sym::usize => Some(UnsignedInt(ast::UintTy::Usize)), - _ => None, - } -} - -pub fn parse_alignment(node: &ast::LitKind) -> Result { - if let ast::LitKind::Int(literal, ast::LitIntType::Unsuffixed) = node { - // `Align::from_bytes` accepts 0 as an input, check is_power_of_two() first - if literal.get().is_power_of_two() { - // Only possible error is larger than 2^29 - literal - .get() - .try_into() - .ok() - .and_then(|v| Align::from_bytes(v).ok()) - .ok_or("larger than 2^29") - } else { - Err("not a power of two") - } - } else { - Err("not an unsuffixed integer") - } -} diff --git a/compiler/rustc_attr/src/attributes/stability.rs b/compiler/rustc_attr/src/attributes/stability.rs deleted file mode 100644 index 01f10d927a3..00000000000 --- a/compiler/rustc_attr/src/attributes/stability.rs +++ /dev/null @@ -1,385 +0,0 @@ -//! Parsing and validation of builtin attributes - -use std::num::NonZero; - -use rustc_ast::attr::AttributeExt; -use rustc_ast::MetaItem; -use rustc_ast_pretty::pprust; -use rustc_errors::ErrorGuaranteed; -use crate::types::{ - ConstStability, DefaultBodyStability, - Stability, StabilityLevel, StableSince, UnstableReason, VERSION_PLACEHOLDER, -}; -use rustc_session::Session; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; - -use crate::{parse_version, session_diagnostics}; -use crate::attributes::util::UnsupportedLiteralReason; - -/// Collects stability info from `stable`/`unstable`/`rustc_allowed_through_unstable_modules` -/// attributes in `attrs`. Returns `None` if no stability attributes are found. -pub fn find_stability( - sess: &Session, - attrs: &[impl AttributeExt], - item_sp: Span, -) -> Option<(Stability, Span)> { - let mut stab: Option<(Stability, Span)> = None; - let mut allowed_through_unstable_modules = false; - - for attr in attrs { - match attr.name_or_empty() { - sym::rustc_allowed_through_unstable_modules => allowed_through_unstable_modules = true, - sym::unstable => { - if stab.is_some() { - sess.dcx().emit_err(session_diagnostics::MultipleStabilityLevels { - span: attr.span(), - }); - break; - } - - if let Some((feature, level)) = parse_unstability(sess, attr) { - stab = Some((Stability { level, feature }, attr.span())); - } - } - sym::stable => { - if stab.is_some() { - sess.dcx().emit_err(session_diagnostics::MultipleStabilityLevels { - span: attr.span(), - }); - break; - } - if let Some((feature, level)) = parse_stability(sess, attr) { - stab = Some((Stability { level, feature }, attr.span())); - } - } - _ => {} - } - } - - if allowed_through_unstable_modules { - match &mut stab { - Some(( - Stability { - level: StabilityLevel::Stable { allowed_through_unstable_modules, .. }, - .. - }, - _, - )) => *allowed_through_unstable_modules = true, - _ => { - sess.dcx() - .emit_err(session_diagnostics::RustcAllowedUnstablePairing { span: item_sp }); - } - } - } - - stab -} - -/// Collects stability info from `rustc_const_stable`/`rustc_const_unstable`/`rustc_promotable` -/// attributes in `attrs`. Returns `None` if no stability attributes are found. -pub fn find_const_stability( - sess: &Session, - attrs: &[impl AttributeExt], - item_sp: Span, -) -> Option<(ConstStability, Span)> { - let mut const_stab: Option<(ConstStability, Span)> = None; - let mut promotable = false; - let mut const_stable_indirect = false; - - for attr in attrs { - match attr.name_or_empty() { - sym::rustc_promotable => promotable = true, - sym::rustc_const_stable_indirect => const_stable_indirect = true, - sym::rustc_const_unstable => { - if const_stab.is_some() { - sess.dcx().emit_err(session_diagnostics::MultipleStabilityLevels { - span: attr.span(), - }); - break; - } - - if let Some((feature, level)) = parse_unstability(sess, attr) { - const_stab = Some(( - ConstStability { - level, - feature, - const_stable_indirect: false, - promotable: false, - }, - attr.span(), - )); - } - } - sym::rustc_const_stable => { - if const_stab.is_some() { - sess.dcx().emit_err(session_diagnostics::MultipleStabilityLevels { - span: attr.span(), - }); - break; - } - if let Some((feature, level)) = parse_stability(sess, attr) { - const_stab = Some(( - ConstStability { - level, - feature, - const_stable_indirect: false, - promotable: false, - }, - attr.span(), - )); - } - } - _ => {} - } - } - - // Merge promotable and const_stable_indirect into stability info - if promotable { - match &mut const_stab { - Some((stab, _)) => stab.promotable = promotable, - _ => { - _ = sess - .dcx() - .emit_err(session_diagnostics::RustcPromotablePairing { span: item_sp }) - } - } - } - if const_stable_indirect { - match &mut const_stab { - Some((stab, _)) => { - if stab.is_const_unstable() { - stab.const_stable_indirect = true; - } else { - _ = sess.dcx().emit_err(session_diagnostics::RustcConstStableIndirectPairing { - span: item_sp, - }) - } - } - _ => { - // This function has no const stability attribute, but has `const_stable_indirect`. - // We ignore that; unmarked functions are subject to recursive const stability - // checks by default so we do carry out the user's intent. - } - } - } - - const_stab -} - -/// Calculates the const stability for a const function in a `-Zforce-unstable-if-unmarked` crate -/// without the `staged_api` feature. -pub fn unmarked_crate_const_stab( - _sess: &Session, - attrs: &[impl AttributeExt], - regular_stab: Stability, -) -> ConstStability { - assert!(regular_stab.level.is_unstable()); - // The only attribute that matters here is `rustc_const_stable_indirect`. - // We enforce recursive const stability rules for those functions. - let const_stable_indirect = - attrs.iter().any(|a| a.name_or_empty() == sym::rustc_const_stable_indirect); - ConstStability { - feature: regular_stab.feature, - const_stable_indirect, - promotable: false, - level: regular_stab.level, - } -} - -/// Collects stability info from `rustc_default_body_unstable` attributes in `attrs`. -/// Returns `None` if no stability attributes are found. -pub fn find_body_stability( - sess: &Session, - attrs: &[impl AttributeExt], -) -> Option<(DefaultBodyStability, Span)> { - let mut body_stab: Option<(DefaultBodyStability, Span)> = None; - - for attr in attrs { - if attr.has_name(sym::rustc_default_body_unstable) { - if body_stab.is_some() { - sess.dcx() - .emit_err(session_diagnostics::MultipleStabilityLevels { span: attr.span() }); - break; - } - - if let Some((feature, level)) = parse_unstability(sess, attr) { - body_stab = Some((DefaultBodyStability { level, feature }, attr.span())); - } - } - } - - body_stab -} - -fn insert_or_error(sess: &Session, meta: &MetaItem, item: &mut Option) -> Option<()> { - if item.is_some() { - sess.dcx().emit_err(session_diagnostics::MultipleItem { - span: meta.span, - item: pprust::path_to_string(&meta.path), - }); - None - } else if let Some(v) = meta.value_str() { - *item = Some(v); - Some(()) - } else { - sess.dcx().emit_err(session_diagnostics::IncorrectMetaItem { span: meta.span }); - None - } -} - -/// Read the content of a `stable`/`rustc_const_stable` attribute, and return the feature name and -/// its stability information. -fn parse_stability(sess: &Session, attr: &impl AttributeExt) -> Option<(Symbol, StabilityLevel)> { - let metas = attr.meta_item_list()?; - - let mut feature = None; - let mut since = None; - for meta in metas { - let Some(mi) = meta.meta_item() else { - sess.dcx().emit_err(session_diagnostics::UnsupportedLiteral { - span: meta.span(), - reason: UnsupportedLiteralReason::Generic, - is_bytestr: false, - start_point_span: sess.source_map().start_point(meta.span()), - }); - return None; - }; - - match mi.name_or_empty() { - sym::feature => insert_or_error(sess, mi, &mut feature)?, - sym::since => insert_or_error(sess, mi, &mut since)?, - _ => { - sess.dcx().emit_err(session_diagnostics::UnknownMetaItem { - span: meta.span(), - item: pprust::path_to_string(&mi.path), - expected: &["feature", "since"], - }); - return None; - } - } - } - - let feature = match feature { - Some(feature) if rustc_lexer::is_ident(feature.as_str()) => Ok(feature), - Some(_bad_feature) => { - Err(sess.dcx().emit_err(session_diagnostics::NonIdentFeature { span: attr.span() })) - } - None => Err(sess.dcx().emit_err(session_diagnostics::MissingFeature { span: attr.span() })), - }; - - let since = if let Some(since) = since { - if since.as_str() == VERSION_PLACEHOLDER { - StableSince::Current - } else if let Some(version) = parse_version(since) { - StableSince::Version(version) - } else { - sess.dcx().emit_err(session_diagnostics::InvalidSince { span: attr.span() }); - StableSince::Err - } - } else { - sess.dcx().emit_err(session_diagnostics::MissingSince { span: attr.span() }); - StableSince::Err - }; - - match feature { - Ok(feature) => { - let level = StabilityLevel::Stable { since, allowed_through_unstable_modules: false }; - Some((feature, level)) - } - Err(ErrorGuaranteed { .. }) => None, - } -} - -/// Read the content of a `unstable`/`rustc_const_unstable`/`rustc_default_body_unstable` -/// attribute, and return the feature name and its stability information. -fn parse_unstability(sess: &Session, attr: &impl AttributeExt) -> Option<(Symbol, StabilityLevel)> { - let metas = attr.meta_item_list()?; - - let mut feature = None; - let mut reason = None; - let mut issue = None; - let mut issue_num = None; - let mut is_soft = false; - let mut implied_by = None; - for meta in metas { - let Some(mi) = meta.meta_item() else { - sess.dcx().emit_err(session_diagnostics::UnsupportedLiteral { - span: meta.span(), - reason: UnsupportedLiteralReason::Generic, - is_bytestr: false, - start_point_span: sess.source_map().start_point(meta.span()), - }); - return None; - }; - - match mi.name_or_empty() { - sym::feature => insert_or_error(sess, mi, &mut feature)?, - sym::reason => insert_or_error(sess, mi, &mut reason)?, - sym::issue => { - insert_or_error(sess, mi, &mut issue)?; - - // These unwraps are safe because `insert_or_error` ensures the meta item - // is a name/value pair string literal. - issue_num = match issue.unwrap().as_str() { - "none" => None, - issue => match issue.parse::>() { - Ok(num) => Some(num), - Err(err) => { - sess.dcx().emit_err( - session_diagnostics::InvalidIssueString { - span: mi.span, - cause: session_diagnostics::InvalidIssueStringCause::from_int_error_kind( - mi.name_value_literal_span().unwrap(), - err.kind(), - ), - }, - ); - return None; - } - }, - }; - } - sym::soft => { - if !mi.is_word() { - sess.dcx().emit_err(session_diagnostics::SoftNoArgs { span: mi.span }); - } - is_soft = true; - } - sym::implied_by => insert_or_error(sess, mi, &mut implied_by)?, - _ => { - sess.dcx().emit_err(session_diagnostics::UnknownMetaItem { - span: meta.span(), - item: pprust::path_to_string(&mi.path), - expected: &["feature", "reason", "issue", "soft", "implied_by"], - }); - return None; - } - } - } - - let feature = match feature { - Some(feature) if rustc_lexer::is_ident(feature.as_str()) => Ok(feature), - Some(_bad_feature) => { - Err(sess.dcx().emit_err(session_diagnostics::NonIdentFeature { span: attr.span() })) - } - None => Err(sess.dcx().emit_err(session_diagnostics::MissingFeature { span: attr.span() })), - }; - - let issue = issue.ok_or_else(|| { - sess.dcx().emit_err(session_diagnostics::MissingIssue { span: attr.span() }) - }); - - match (feature, issue) { - (Ok(feature), Ok(_)) => { - let level = StabilityLevel::Unstable { - reason: UnstableReason::from_opt_reason(reason), - issue: issue_num, - is_soft, - implied_by, - }; - Some((feature, level)) - } - (Err(ErrorGuaranteed { .. }), _) | (_, Err(ErrorGuaranteed { .. })) => None, - } -} diff --git a/compiler/rustc_attr/src/attributes/transparency.rs b/compiler/rustc_attr/src/attributes/transparency.rs deleted file mode 100644 index 4d37df58cb6..00000000000 --- a/compiler/rustc_attr/src/attributes/transparency.rs +++ /dev/null @@ -1,35 +0,0 @@ -use rustc_ast::attr::AttributeExt; -use crate::types::TransparencyError; -use rustc_span::{hygiene::Transparency, sym}; - -pub fn find_transparency( - attrs: &[impl AttributeExt], - macro_rules: bool, -) -> (Transparency, Option) { - let mut transparency = None; - let mut error = None; - for attr in attrs { - if attr.has_name(sym::rustc_macro_transparency) { - if let Some((_, old_span)) = transparency { - error = Some(TransparencyError::MultipleTransparencyAttrs(old_span, attr.span())); - break; - } else if let Some(value) = attr.value_str() { - transparency = Some(( - match value { - sym::transparent => Transparency::Transparent, - sym::semitransparent => Transparency::SemiTransparent, - sym::opaque => Transparency::Opaque, - _ => { - error = - Some(TransparencyError::UnknownTransparency(value, attr.span())); - continue; - } - }, - attr.span(), - )); - } - } - } - let fallback = if macro_rules { Transparency::SemiTransparent } else { Transparency::Opaque }; - (transparency.map_or(fallback, |t| t.0), error) -} diff --git a/compiler/rustc_attr/src/attributes/util.rs b/compiler/rustc_attr/src/attributes/util.rs deleted file mode 100644 index 8539a1370d2..00000000000 --- a/compiler/rustc_attr/src/attributes/util.rs +++ /dev/null @@ -1,36 +0,0 @@ -use rustc_ast::attr::{AttributeExt, first_attr_value_str_by_name}; -use rustc_feature::is_builtin_attr_name; -use rustc_session::RustcVersion; -use rustc_span::symbol::{Symbol, sym}; - -pub(crate) enum UnsupportedLiteralReason { - Generic, - CfgString, - CfgBoolean, - DeprecatedString, - DeprecatedKvPair, -} - -pub fn is_builtin_attr(attr: &impl AttributeExt) -> bool { - attr.is_doc_comment() || attr.ident().is_some_and(|ident| is_builtin_attr_name(ident.name)) -} - -pub fn find_crate_name(attrs: &[impl AttributeExt]) -> Option { - first_attr_value_str_by_name(attrs, sym::crate_name) -} - -/// Parse a rustc version number written inside string literal in an attribute, -/// like appears in `since = "1.0.0"`. Suffixes like "-dev" and "-nightly" are -/// not accepted in this position, unlike when parsing CFG_RELEASE. -pub fn parse_version(s: Symbol) -> Option { - let mut components = s.as_str().split('-'); - let d = components.next()?; - if components.next().is_some() { - return None; - } - let mut digits = d.splitn(3, '.'); - let major = digits.next()?.parse().ok()?; - let minor = digits.next()?.parse().ok()?; - let patch = digits.next().unwrap_or("0").parse().ok()?; - Some(RustcVersion { major, minor, patch }) -} diff --git a/compiler/rustc_attr/src/lib.rs b/compiler/rustc_attr/src/lib.rs deleted file mode 100644 index d34ff02c7ed..00000000000 --- a/compiler/rustc_attr/src/lib.rs +++ /dev/null @@ -1,40 +0,0 @@ -//! Centralized logic for parsing and validating all attributes used after HIR. -//! -//! History: Check out [#131229](https://github.com/rust-lang/rust/issues/131229). -//! There used to be only one definition of attributes in the compiler: `ast::Attribute`. -//! These were then parsed or validated or both in places distributed all over the compiler. -//! -//! Attributes are markers on items. Most are actually attribute-like proc-macros, and are expanded -//! but some remain as the built-in attributes to guide compilation. -//! -//! In this crate, syntactical attributes (sequences of tokens that look like -//! `#[something(something else)]`) are parsed into more semantic attributes, markers on items. -//! Multiple syntactic attributes might influence a single semantic attribute. For example, -//! `#[stable(...)]` and `#[unstable()]` cannot occur together, and both semantically define -//! a "stability". Stability defines an [`AttributeExtractor`](attributes::AttributeExtractor) -//! that recognizes both `#[stable()]` and `#[unstable()]` syntactic attributes, and at the end -//! produce a single [`ParsedAttributeKind::Stability`]. -//! -//! FIXME(jdonszelmann): update devguide for best practices on attributes -//! FIXME(jdonszelmann): rename to `rustc_attr` in the future, integrating it into this crate. -//! -//! To define a new builtin, first add it - -// tidy-alphabetical-start -#![allow(internal_features)] -#![doc(rust_logo)] -#![feature(let_chains)] -#![feature(rustdoc_internals)] -#![warn(unreachable_pub)] -// tidy-alphabetical-end - -mod attributes; -mod session_diagnostics; -mod types; - -pub use attributes::*; -pub(crate) use rustc_session::HashStableContext; -pub use types::*; -pub use util::{find_crate_name, is_builtin_attr, parse_version}; - -rustc_fluent_macro::fluent_messages! { "../messages.ftl" } diff --git a/compiler/rustc_attr/src/session_diagnostics.rs b/compiler/rustc_attr/src/session_diagnostics.rs deleted file mode 100644 index 245221e9729..00000000000 --- a/compiler/rustc_attr/src/session_diagnostics.rs +++ /dev/null @@ -1,407 +0,0 @@ -use std::num::IntErrorKind; - -use rustc_ast as ast; -use rustc_errors::codes::*; -use rustc_errors::{Applicability, Diag, DiagCtxtHandle, Diagnostic, EmissionGuarantee, Level}; -use rustc_macros::{Diagnostic, Subdiagnostic}; -use rustc_span::{Span, Symbol}; - -use crate::attributes::util::UnsupportedLiteralReason; -use crate::fluent_generated as fluent; - -#[derive(Diagnostic)] -#[diag(attr_expected_one_cfg_pattern, code = E0536)] -pub(crate) struct ExpectedOneCfgPattern { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_invalid_predicate, code = E0537)] -pub(crate) struct InvalidPredicate { - #[primary_span] - pub span: Span, - - pub predicate: String, -} - -#[derive(Diagnostic)] -#[diag(attr_multiple_item, code = E0538)] -pub(crate) struct MultipleItem { - #[primary_span] - pub span: Span, - - pub item: String, -} - -#[derive(Diagnostic)] -#[diag(attr_incorrect_meta_item, code = E0539)] -pub(crate) struct IncorrectMetaItem { - #[primary_span] - pub span: Span, -} - -/// Error code: E0541 -pub(crate) struct UnknownMetaItem<'a> { - pub span: Span, - pub item: String, - pub expected: &'a [&'a str], -} - -// Manual implementation to be able to format `expected` items correctly. -impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for UnknownMetaItem<'_> { - fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, G> { - let expected = self.expected.iter().map(|name| format!("`{name}`")).collect::>(); - Diag::new(dcx, level, fluent::attr_unknown_meta_item) - .with_span(self.span) - .with_code(E0541) - .with_arg("item", self.item) - .with_arg("expected", expected.join(", ")) - .with_span_label(self.span, fluent::attr_label) - } -} - -#[derive(Diagnostic)] -#[diag(attr_missing_since, code = E0542)] -pub(crate) struct MissingSince { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_missing_note, code = E0543)] -pub(crate) struct MissingNote { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_multiple_stability_levels, code = E0544)] -pub(crate) struct MultipleStabilityLevels { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_invalid_issue_string, code = E0545)] -pub(crate) struct InvalidIssueString { - #[primary_span] - pub span: Span, - - #[subdiagnostic] - pub cause: Option, -} - -// The error kinds of `IntErrorKind` are duplicated here in order to allow the messages to be -// translatable. -#[derive(Subdiagnostic)] -pub(crate) enum InvalidIssueStringCause { - #[label(attr_must_not_be_zero)] - MustNotBeZero { - #[primary_span] - span: Span, - }, - - #[label(attr_empty)] - Empty { - #[primary_span] - span: Span, - }, - - #[label(attr_invalid_digit)] - InvalidDigit { - #[primary_span] - span: Span, - }, - - #[label(attr_pos_overflow)] - PosOverflow { - #[primary_span] - span: Span, - }, - - #[label(attr_neg_overflow)] - NegOverflow { - #[primary_span] - span: Span, - }, -} - -impl InvalidIssueStringCause { - pub(crate) fn from_int_error_kind(span: Span, kind: &IntErrorKind) -> Option { - match kind { - IntErrorKind::Empty => Some(Self::Empty { span }), - IntErrorKind::InvalidDigit => Some(Self::InvalidDigit { span }), - IntErrorKind::PosOverflow => Some(Self::PosOverflow { span }), - IntErrorKind::NegOverflow => Some(Self::NegOverflow { span }), - IntErrorKind::Zero => Some(Self::MustNotBeZero { span }), - _ => None, - } - } -} - -#[derive(Diagnostic)] -#[diag(attr_missing_feature, code = E0546)] -pub(crate) struct MissingFeature { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_non_ident_feature, code = E0546)] -pub(crate) struct NonIdentFeature { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_missing_issue, code = E0547)] -pub(crate) struct MissingIssue { - #[primary_span] - pub span: Span, -} - -// FIXME: Why is this the same error code as `InvalidReprHintNoParen` and `InvalidReprHintNoValue`? -// It is more similar to `IncorrectReprFormatGeneric`. -#[derive(Diagnostic)] -#[diag(attr_incorrect_repr_format_packed_one_or_zero_arg, code = E0552)] -pub(crate) struct IncorrectReprFormatPackedOneOrZeroArg { - #[primary_span] - pub span: Span, -} -#[derive(Diagnostic)] -#[diag(attr_incorrect_repr_format_packed_expect_integer, code = E0552)] -pub(crate) struct IncorrectReprFormatPackedExpectInteger { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_invalid_repr_hint_no_paren, code = E0552)] -pub(crate) struct InvalidReprHintNoParen { - #[primary_span] - pub span: Span, - - pub name: String, -} - -#[derive(Diagnostic)] -#[diag(attr_invalid_repr_hint_no_value, code = E0552)] -pub(crate) struct InvalidReprHintNoValue { - #[primary_span] - pub span: Span, - - pub name: String, -} - -/// Error code: E0565 -pub(crate) struct UnsupportedLiteral { - pub span: Span, - pub reason: UnsupportedLiteralReason, - pub is_bytestr: bool, - pub start_point_span: Span, -} - -impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for UnsupportedLiteral { - fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, G> { - let mut diag = Diag::new(dcx, level, match self.reason { - UnsupportedLiteralReason::Generic => fluent::attr_unsupported_literal_generic, - UnsupportedLiteralReason::CfgString => fluent::attr_unsupported_literal_cfg_string, - UnsupportedLiteralReason::CfgBoolean => fluent::attr_unsupported_literal_cfg_boolean, - UnsupportedLiteralReason::DeprecatedString => { - fluent::attr_unsupported_literal_deprecated_string - } - UnsupportedLiteralReason::DeprecatedKvPair => { - fluent::attr_unsupported_literal_deprecated_kv_pair - } - }); - diag.span(self.span); - diag.code(E0565); - if self.is_bytestr { - diag.span_suggestion( - self.start_point_span, - fluent::attr_unsupported_literal_suggestion, - "", - Applicability::MaybeIncorrect, - ); - } - diag - } -} - -#[derive(Diagnostic)] -#[diag(attr_invalid_repr_align_need_arg, code = E0589)] -pub(crate) struct InvalidReprAlignNeedArg { - #[primary_span] - #[suggestion(code = "align(...)", applicability = "has-placeholders")] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_invalid_repr_generic, code = E0589)] -pub(crate) struct InvalidReprGeneric<'a> { - #[primary_span] - pub span: Span, - - pub repr_arg: String, - pub error_part: &'a str, -} - -#[derive(Diagnostic)] -#[diag(attr_incorrect_repr_format_align_one_arg, code = E0693)] -pub(crate) struct IncorrectReprFormatAlignOneArg { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_incorrect_repr_format_expect_literal_integer, code = E0693)] -pub(crate) struct IncorrectReprFormatExpectInteger { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_incorrect_repr_format_generic, code = E0693)] -pub(crate) struct IncorrectReprFormatGeneric<'a> { - #[primary_span] - pub span: Span, - - pub repr_arg: &'a str, - - #[subdiagnostic] - pub cause: Option>, -} - -#[derive(Subdiagnostic)] -pub(crate) enum IncorrectReprFormatGenericCause<'a> { - #[suggestion(attr_suggestion, code = "{name}({int})", applicability = "machine-applicable")] - Int { - #[primary_span] - span: Span, - - #[skip_arg] - name: &'a str, - - #[skip_arg] - int: u128, - }, - - #[suggestion(attr_suggestion, code = "{name}({symbol})", applicability = "machine-applicable")] - Symbol { - #[primary_span] - span: Span, - - #[skip_arg] - name: &'a str, - - #[skip_arg] - symbol: Symbol, - }, -} - -impl<'a> IncorrectReprFormatGenericCause<'a> { - pub(crate) fn from_lit_kind(span: Span, kind: &ast::LitKind, name: &'a str) -> Option { - match kind { - ast::LitKind::Int(int, ast::LitIntType::Unsuffixed) => { - Some(Self::Int { span, name, int: int.get() }) - } - ast::LitKind::Str(symbol, _) => Some(Self::Symbol { span, name, symbol: *symbol }), - _ => None, - } - } -} - -#[derive(Diagnostic)] -#[diag(attr_rustc_promotable_pairing, code = E0717)] -pub(crate) struct RustcPromotablePairing { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_rustc_const_stable_indirect_pairing)] -pub(crate) struct RustcConstStableIndirectPairing { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_rustc_allowed_unstable_pairing, code = E0789)] -pub(crate) struct RustcAllowedUnstablePairing { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_cfg_predicate_identifier)] -pub(crate) struct CfgPredicateIdentifier { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_deprecated_item_suggestion)] -pub(crate) struct DeprecatedItemSuggestion { - #[primary_span] - pub span: Span, - - #[help] - pub is_nightly: bool, - - #[note] - pub details: (), -} - -#[derive(Diagnostic)] -#[diag(attr_expected_single_version_literal)] -pub(crate) struct ExpectedSingleVersionLiteral { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_expected_version_literal)] -pub(crate) struct ExpectedVersionLiteral { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_expects_feature_list)] -pub(crate) struct ExpectsFeatureList { - #[primary_span] - pub span: Span, - - pub name: String, -} - -#[derive(Diagnostic)] -#[diag(attr_expects_features)] -pub(crate) struct ExpectsFeatures { - #[primary_span] - pub span: Span, - - pub name: String, -} - -#[derive(Diagnostic)] -#[diag(attr_invalid_since)] -pub(crate) struct InvalidSince { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_soft_no_args)] -pub(crate) struct SoftNoArgs { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(attr_unknown_version_literal)] -pub(crate) struct UnknownVersionLiteral { - #[primary_span] - pub span: Span, -} diff --git a/compiler/rustc_attr/src/types.rs b/compiler/rustc_attr/src/types.rs deleted file mode 100644 index 243a70c0a21..00000000000 --- a/compiler/rustc_attr/src/types.rs +++ /dev/null @@ -1,262 +0,0 @@ -use std::num::NonZero; - -use rustc_abi::Align; -use rustc_ast as ast; -use rustc_macros::{Encodable, Decodable, HashStable_Generic}; -use rustc_session::RustcVersion; -use rustc_span::{sym, Span, Symbol}; - -/// The version placeholder that recently stabilized features contain inside the -/// `since` field of the `#[stable]` attribute. -/// -/// For more, see [this pull request](https://github.com/rust-lang/rust/pull/100591). -pub const VERSION_PLACEHOLDER: &str = "CURRENT_RUSTC_VERSION"; - -#[derive(Copy, Clone, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)] -pub enum InlineAttr { - None, - Hint, - Always, - Never, -} - -#[derive(Clone, Encodable, Decodable, Debug, PartialEq, Eq, HashStable_Generic)] -pub enum InstructionSetAttr { - ArmA32, - ArmT32, -} - -#[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] -pub enum OptimizeAttr { - None, - Speed, - Size, -} - -#[derive(Clone, Debug, Encodable, Decodable)] -pub enum DiagnosticAttribute { - // tidy-alphabetical-start - DoNotRecommend, - OnUnimplemented, - // tidy-alphabetical-end -} - -#[derive(PartialEq, Debug, Encodable, Decodable, Copy, Clone)] -pub enum ReprAttr { - ReprInt(IntType), - ReprRust, - ReprC, - ReprPacked(Align), - ReprSimd, - ReprTransparent, - ReprAlign(Align), -} -pub use ReprAttr::*; - -pub enum TransparencyError { - UnknownTransparency(Symbol, Span), - MultipleTransparencyAttrs(Span, Span), -} - -#[derive(Eq, PartialEq, Debug, Copy, Clone)] -#[derive(Encodable, Decodable)] -pub enum IntType { - SignedInt(ast::IntTy), - UnsignedInt(ast::UintTy), -} - -/// Represents the following attributes: -/// -/// - `#[stable]` -/// - `#[unstable]` -#[derive(Encodable, Decodable, Copy, Clone, Debug, PartialEq, Eq, Hash)] -#[derive(HashStable_Generic)] -pub struct Stability { - pub level: StabilityLevel, - pub feature: Symbol, -} - -impl Stability { - pub fn is_unstable(&self) -> bool { - self.level.is_unstable() - } - - pub fn is_stable(&self) -> bool { - self.level.is_stable() - } - - pub fn stable_since(&self) -> Option { - self.level.stable_since() - } -} - -/// Represents the `#[rustc_const_unstable]` and `#[rustc_const_stable]` attributes. -#[derive(Encodable, Decodable, Copy, Clone, Debug, PartialEq, Eq, Hash)] -#[derive(HashStable_Generic)] -pub struct ConstStability { - pub level: StabilityLevel, - pub feature: Symbol, - /// This is true iff the `const_stable_indirect` attribute is present. - pub const_stable_indirect: bool, - /// whether the function has a `#[rustc_promotable]` attribute - pub promotable: bool, -} - -impl ConstStability { - pub fn is_const_unstable(&self) -> bool { - self.level.is_unstable() - } - - pub fn is_const_stable(&self) -> bool { - self.level.is_stable() - } -} - -/// Represents the `#[rustc_default_body_unstable]` attribute. -#[derive(Encodable, Decodable, Copy, Clone, Debug, PartialEq, Eq, Hash)] -#[derive(HashStable_Generic)] -pub struct DefaultBodyStability { - pub level: StabilityLevel, - pub feature: Symbol, -} - -/// The available stability levels. -#[derive(Encodable, Decodable, PartialEq, Copy, Clone, Debug, Eq, Hash)] -#[derive(HashStable_Generic)] -pub enum StabilityLevel { - /// `#[unstable]` - Unstable { - /// Reason for the current stability level. - reason: UnstableReason, - /// Relevant `rust-lang/rust` issue. - issue: Option>, - is_soft: bool, - /// If part of a feature is stabilized and a new feature is added for the remaining parts, - /// then the `implied_by` attribute is used to indicate which now-stable feature previously - /// contained an item. - /// - /// ```pseudo-Rust - /// #[unstable(feature = "foo", issue = "...")] - /// fn foo() {} - /// #[unstable(feature = "foo", issue = "...")] - /// fn foobar() {} - /// ``` - /// - /// ...becomes... - /// - /// ```pseudo-Rust - /// #[stable(feature = "foo", since = "1.XX.X")] - /// fn foo() {} - /// #[unstable(feature = "foobar", issue = "...", implied_by = "foo")] - /// fn foobar() {} - /// ``` - implied_by: Option, - }, - /// `#[stable]` - Stable { - /// Rust release which stabilized this feature. - since: StableSince, - /// Is this item allowed to be referred to on stable, despite being contained in unstable - /// modules? - allowed_through_unstable_modules: bool, - }, -} - -/// Rust release in which a feature is stabilized. -#[derive(Encodable, Decodable, PartialEq, Copy, Clone, Debug, Eq, PartialOrd, Ord, Hash)] -#[derive(HashStable_Generic)] -pub enum StableSince { - Version(RustcVersion), - /// Stabilized in the upcoming version, whatever number that is. - Current, - /// Failed to parse a stabilization version. - Err, -} - -impl StabilityLevel { - pub fn is_unstable(&self) -> bool { - matches!(self, StabilityLevel::Unstable { .. }) - } - pub fn is_stable(&self) -> bool { - matches!(self, StabilityLevel::Stable { .. }) - } - pub fn stable_since(&self) -> Option { - match *self { - StabilityLevel::Stable { since, .. } => Some(since), - StabilityLevel::Unstable { .. } => None, - } - } -} - -#[derive(Encodable, Decodable, PartialEq, Copy, Clone, Debug, Eq, Hash)] -#[derive(HashStable_Generic)] -pub enum UnstableReason { - None, - Default, - Some(Symbol), -} - -impl UnstableReason { - pub(crate) fn from_opt_reason(reason: Option) -> Self { - // UnstableReason::Default constructed manually - match reason { - Some(r) => Self::Some(r), - None => Self::None, - } - } - - pub fn to_opt_reason(&self) -> Option { - match self { - Self::None => None, - Self::Default => Some(sym::unstable_location_reason_default), - Self::Some(r) => Some(*r), - } - } -} - -#[derive(Copy, Debug, Encodable, Decodable, Clone, HashStable_Generic)] -pub struct Deprecation { - pub since: DeprecatedSince, - /// The note to issue a reason. - pub note: Option, - /// A text snippet used to completely replace any use of the deprecated item in an expression. - /// - /// This is currently unstable. - pub suggestion: Option, -} - -/// Release in which an API is deprecated. -#[derive(Copy, Debug, Encodable, Decodable, Clone, HashStable_Generic)] -pub enum DeprecatedSince { - RustcVersion(RustcVersion), - /// Deprecated in the future ("to be determined"). - Future, - /// `feature(staged_api)` is off. Deprecation versions outside the standard - /// library are allowed to be arbitrary strings, for better or worse. - NonStandard(Symbol), - /// Deprecation version is unspecified but optional. - Unspecified, - /// Failed to parse a deprecation version, or the deprecation version is - /// unspecified and required. An error has already been emitted. - Err, -} - -impl Deprecation { - /// Whether an item marked with #[deprecated(since = "X")] is currently - /// deprecated (i.e., whether X is not greater than the current rustc - /// version). - pub fn is_in_effect(&self) -> bool { - match self.since { - DeprecatedSince::RustcVersion(since) => since <= RustcVersion::CURRENT, - DeprecatedSince::Future => false, - // The `since` field doesn't have semantic purpose without `#![staged_api]`. - DeprecatedSince::NonStandard(_) => true, - // Assume deprecation is in effect if "since" field is absent or invalid. - DeprecatedSince::Unspecified | DeprecatedSince::Err => true, - } - } - - pub fn is_since_rustc_version(&self) -> bool { - matches!(self.since, DeprecatedSince::RustcVersion(_)) - } -} diff --git a/compiler/rustc_attr_data_structures/Cargo.toml b/compiler/rustc_attr_data_structures/Cargo.toml new file mode 100644 index 00000000000..2ee58f24470 --- /dev/null +++ b/compiler/rustc_attr_data_structures/Cargo.toml @@ -0,0 +1,20 @@ +[package] +name = "rustc_attr_data_structures" +version = "0.0.0" +edition = "2021" + +[dependencies] +# tidy-alphabetical-start +rustc_abi = { path = "../rustc_abi" } +rustc_ast = { path = "../rustc_ast" } +rustc_ast_pretty = { path = "../rustc_ast_pretty" } +rustc_data_structures = { path = "../rustc_data_structures" } +rustc_errors = { path = "../rustc_errors" } +rustc_feature = { path = "../rustc_feature" } +rustc_fluent_macro = { path = "../rustc_fluent_macro" } +rustc_lexer = { path = "../rustc_lexer" } +rustc_macros = { path = "../rustc_macros" } +rustc_serialize = { path = "../rustc_serialize" } +rustc_session = { path = "../rustc_session" } +rustc_span = { path = "../rustc_span" } +# tidy-alphabetical-end diff --git a/compiler/rustc_attr_data_structures/src/attributes.rs b/compiler/rustc_attr_data_structures/src/attributes.rs new file mode 100644 index 00000000000..8986bec57de --- /dev/null +++ b/compiler/rustc_attr_data_structures/src/attributes.rs @@ -0,0 +1,106 @@ +use rustc_abi::Align; +use rustc_ast as ast; +use rustc_macros::{Decodable, Encodable, HashStable_Generic}; +use rustc_span::{Span, Symbol}; + +use crate::RustcVersion; + +#[derive(Copy, Clone, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)] +pub enum InlineAttr { + None, + Hint, + Always, + Never, +} + +#[derive(Clone, Encodable, Decodable, Debug, PartialEq, Eq, HashStable_Generic)] +pub enum InstructionSetAttr { + ArmA32, + ArmT32, +} + +#[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] +pub enum OptimizeAttr { + None, + Speed, + Size, +} + +#[derive(Clone, Debug, Encodable, Decodable)] +pub enum DiagnosticAttribute { + // tidy-alphabetical-start + DoNotRecommend, + OnUnimplemented, + // tidy-alphabetical-end +} + +#[derive(PartialEq, Debug, Encodable, Decodable, Copy, Clone)] +pub enum ReprAttr { + ReprInt(IntType), + ReprRust, + ReprC, + ReprPacked(Align), + ReprSimd, + ReprTransparent, + ReprAlign(Align), +} +pub use ReprAttr::*; + +pub enum TransparencyError { + UnknownTransparency(Symbol, Span), + MultipleTransparencyAttrs(Span, Span), +} + +#[derive(Eq, PartialEq, Debug, Copy, Clone)] +#[derive(Encodable, Decodable)] +pub enum IntType { + SignedInt(ast::IntTy), + UnsignedInt(ast::UintTy), +} + +#[derive(Copy, Debug, Encodable, Decodable, Clone, HashStable_Generic)] +pub struct Deprecation { + pub since: DeprecatedSince, + /// The note to issue a reason. + pub note: Option, + /// A text snippet used to completely replace any use of the deprecated item in an expression. + /// + /// This is currently unstable. + pub suggestion: Option, +} + +/// Release in which an API is deprecated. +#[derive(Copy, Debug, Encodable, Decodable, Clone, HashStable_Generic)] +pub enum DeprecatedSince { + RustcVersion(RustcVersion), + /// Deprecated in the future ("to be determined"). + Future, + /// `feature(staged_api)` is off. Deprecation versions outside the standard + /// library are allowed to be arbitrary strings, for better or worse. + NonStandard(Symbol), + /// Deprecation version is unspecified but optional. + Unspecified, + /// Failed to parse a deprecation version, or the deprecation version is + /// unspecified and required. An error has already been emitted. + Err, +} + +impl Deprecation { + /// Whether an item marked with #[deprecated(since = "X")] is currently + /// deprecated (i.e., whether X is not greater than the current rustc + /// version). + pub fn is_in_effect(&self) -> bool { + match self.since { + DeprecatedSince::RustcVersion(since) => since <= RustcVersion::CURRENT, + DeprecatedSince::Future => false, + // The `since` field doesn't have semantic purpose without `#![staged_api]`. + DeprecatedSince::NonStandard(_) => true, + // Assume deprecation is in effect if "since" field is absent or invalid. + DeprecatedSince::Unspecified | DeprecatedSince::Err => true, + } + } + + pub fn is_since_rustc_version(&self) -> bool { + matches!(self.since, DeprecatedSince::RustcVersion(_)) + } +} diff --git a/compiler/rustc_attr_data_structures/src/lib.rs b/compiler/rustc_attr_data_structures/src/lib.rs new file mode 100644 index 00000000000..4f204aeab64 --- /dev/null +++ b/compiler/rustc_attr_data_structures/src/lib.rs @@ -0,0 +1,16 @@ +// tidy-alphabetical-start +#![allow(internal_features)] +#![doc(rust_logo)] +#![feature(let_chains)] +#![feature(rustdoc_internals)] +#![warn(unreachable_pub)] +// tidy-alphabetical-end + +mod attributes; +mod stability; +mod version; + +pub use attributes::*; +pub(crate) use rustc_session::HashStableContext; +pub use stability::*; +pub use version::*; diff --git a/compiler/rustc_attr_data_structures/src/stability.rs b/compiler/rustc_attr_data_structures/src/stability.rs new file mode 100644 index 00000000000..021fe40e3e0 --- /dev/null +++ b/compiler/rustc_attr_data_structures/src/stability.rs @@ -0,0 +1,200 @@ +use std::num::NonZero; + +use rustc_macros::{Decodable, Encodable, HashStable_Generic}; +use rustc_span::{Symbol, sym}; + +use crate::RustcVersion; + +/// The version placeholder that recently stabilized features contain inside the +/// `since` field of the `#[stable]` attribute. +/// +/// For more, see [this pull request](https://github.com/rust-lang/rust/pull/100591). +pub const VERSION_PLACEHOLDER: &str = "CURRENT_RUSTC_VERSION"; + +/// Represents the following attributes: +/// +/// - `#[stable]` +/// - `#[unstable]` +#[derive(Encodable, Decodable, Copy, Clone, Debug, PartialEq, Eq, Hash)] +#[derive(HashStable_Generic)] +pub struct Stability { + pub level: StabilityLevel, + pub feature: Symbol, +} + +impl Stability { + pub fn is_unstable(&self) -> bool { + self.level.is_unstable() + } + + pub fn is_stable(&self) -> bool { + self.level.is_stable() + } + + pub fn stable_since(&self) -> Option { + self.level.stable_since() + } +} + +/// Represents the `#[rustc_const_unstable]` and `#[rustc_const_stable]` attributes. +#[derive(Encodable, Decodable, Copy, Clone, Debug, PartialEq, Eq, Hash)] +#[derive(HashStable_Generic)] +pub struct ConstStability { + pub level: StabilityLevel, + pub feature: Symbol, + /// whether the function has a `#[rustc_promotable]` attribute + pub promotable: bool, + /// This is true iff the `const_stable_indirect` attribute is present. + pub const_stable_indirect: bool, +} + +impl ConstStability { + pub fn from_partial( + PartialConstStability { level, feature, promotable }: PartialConstStability, + const_stable_indirect: bool, + ) -> Self { + Self { const_stable_indirect, level, feature, promotable } + } + + /// The stability assigned to unmarked items when -Zforce-unstable-if-unmarked is set. + pub fn unmarked(const_stable_indirect: bool, regular_stab: Stability) -> Self { + Self { + feature: regular_stab.feature, + promotable: false, + level: regular_stab.level, + const_stable_indirect, + } + } + + pub fn is_const_unstable(&self) -> bool { + self.level.is_unstable() + } + + pub fn is_const_stable(&self) -> bool { + self.level.is_stable() + } +} + +/// Excludes `const_stable_indirect`. This is necessary because when `-Zforce-unstable-if-unmarked` +/// is set, we need to encode standalone `#[rustc_const_stable_indirect]` attributes +#[derive(Encodable, Decodable, Copy, Clone, Debug, PartialEq, Eq, Hash)] +#[derive(HashStable_Generic)] +pub struct PartialConstStability { + pub level: StabilityLevel, + pub feature: Symbol, + /// whether the function has a `#[rustc_promotable]` attribute + pub promotable: bool, +} + +impl PartialConstStability { + pub fn is_const_unstable(&self) -> bool { + self.level.is_unstable() + } + + pub fn is_const_stable(&self) -> bool { + self.level.is_stable() + } +} + +/// The available stability levels. +#[derive(Encodable, Decodable, PartialEq, Copy, Clone, Debug, Eq, Hash)] +#[derive(HashStable_Generic)] +pub enum StabilityLevel { + /// `#[unstable]` + Unstable { + /// Reason for the current stability level. + reason: UnstableReason, + /// Relevant `rust-lang/rust` issue. + issue: Option>, + is_soft: bool, + /// If part of a feature is stabilized and a new feature is added for the remaining parts, + /// then the `implied_by` attribute is used to indicate which now-stable feature previously + /// contained an item. + /// + /// ```pseudo-Rust + /// #[unstable(feature = "foo", issue = "...")] + /// fn foo() {} + /// #[unstable(feature = "foo", issue = "...")] + /// fn foobar() {} + /// ``` + /// + /// ...becomes... + /// + /// ```pseudo-Rust + /// #[stable(feature = "foo", since = "1.XX.X")] + /// fn foo() {} + /// #[unstable(feature = "foobar", issue = "...", implied_by = "foo")] + /// fn foobar() {} + /// ``` + implied_by: Option, + }, + /// `#[stable]` + Stable { + /// Rust release which stabilized this feature. + since: StableSince, + /// Is this item allowed to be referred to on stable, despite being contained in unstable + /// modules? + allowed_through_unstable_modules: bool, + }, +} + +/// Rust release in which a feature is stabilized. +#[derive(Encodable, Decodable, PartialEq, Copy, Clone, Debug, Eq, PartialOrd, Ord, Hash)] +#[derive(HashStable_Generic)] +pub enum StableSince { + /// also stores the original symbol for printing + Version(RustcVersion), + /// Stabilized in the upcoming version, whatever number that is. + Current, + /// Failed to parse a stabilization version. + Err, +} + +impl StabilityLevel { + pub fn is_unstable(&self) -> bool { + matches!(self, StabilityLevel::Unstable { .. }) + } + pub fn is_stable(&self) -> bool { + matches!(self, StabilityLevel::Stable { .. }) + } + pub fn stable_since(&self) -> Option { + match *self { + StabilityLevel::Stable { since, .. } => Some(since), + StabilityLevel::Unstable { .. } => None, + } + } +} + +#[derive(Encodable, Decodable, PartialEq, Copy, Clone, Debug, Eq, Hash)] +#[derive(HashStable_Generic)] +pub enum UnstableReason { + None, + Default, + Some(Symbol), +} + +/// Represents the `#[rustc_default_body_unstable]` attribute. +#[derive(Encodable, Decodable, Copy, Clone, Debug, PartialEq, Eq, Hash)] +#[derive(HashStable_Generic)] +pub struct DefaultBodyStability { + pub level: StabilityLevel, + pub feature: Symbol, +} + +impl UnstableReason { + pub fn from_opt_reason(reason: Option) -> Self { + // UnstableReason::Default constructed manually + match reason { + Some(r) => Self::Some(r), + None => Self::None, + } + } + + pub fn to_opt_reason(&self) -> Option { + match self { + Self::None => None, + Self::Default => Some(sym::unstable_location_reason_default), + Self::Some(r) => Some(*r), + } + } +} diff --git a/compiler/rustc_attr_data_structures/src/version.rs b/compiler/rustc_attr_data_structures/src/version.rs new file mode 100644 index 00000000000..6be875ad4be --- /dev/null +++ b/compiler/rustc_attr_data_structures/src/version.rs @@ -0,0 +1,21 @@ +use std::fmt::{self, Display}; + +use rustc_macros::{Decodable, Encodable, HashStable_Generic, current_rustc_version}; + +#[derive(Encodable, Decodable, Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)] +#[derive(HashStable_Generic)] +pub struct RustcVersion { + pub major: u16, + pub minor: u16, + pub patch: u16, +} + +impl RustcVersion { + pub const CURRENT: Self = current_rustc_version!(); +} + +impl Display for RustcVersion { + fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { + write!(formatter, "{}.{}.{}", self.major, self.minor, self.patch) + } +} diff --git a/compiler/rustc_attr_parsing/Cargo.toml b/compiler/rustc_attr_parsing/Cargo.toml new file mode 100644 index 00000000000..7ccedf40c3f --- /dev/null +++ b/compiler/rustc_attr_parsing/Cargo.toml @@ -0,0 +1,21 @@ +[package] +name = "rustc_attr_parsing" +version = "0.0.0" +edition = "2021" + +[dependencies] +# tidy-alphabetical-start +rustc_abi = { path = "../rustc_abi" } +rustc_ast = { path = "../rustc_ast" } +rustc_ast_pretty = { path = "../rustc_ast_pretty" } +rustc_attr_data_structures = { path = "../rustc_attr_data_structures" } +rustc_data_structures = { path = "../rustc_data_structures" } +rustc_errors = { path = "../rustc_errors" } +rustc_feature = { path = "../rustc_feature" } +rustc_fluent_macro = { path = "../rustc_fluent_macro" } +rustc_lexer = { path = "../rustc_lexer" } +rustc_macros = { path = "../rustc_macros" } +rustc_serialize = { path = "../rustc_serialize" } +rustc_session = { path = "../rustc_session" } +rustc_span = { path = "../rustc_span" } +# tidy-alphabetical-end diff --git a/compiler/rustc_attr_parsing/messages.ftl b/compiler/rustc_attr_parsing/messages.ftl new file mode 100644 index 00000000000..faa2865cb91 --- /dev/null +++ b/compiler/rustc_attr_parsing/messages.ftl @@ -0,0 +1,124 @@ +attr_parsing_cfg_predicate_identifier = + `cfg` predicate key must be an identifier + +attr_parsing_deprecated_item_suggestion = + suggestions on deprecated items are unstable + .help = add `#![feature(deprecated_suggestion)]` to the crate root + .note = see #94785 for more details + +attr_parsing_expected_one_cfg_pattern = + expected 1 cfg-pattern + +attr_parsing_expected_single_version_literal = + expected single version literal + +attr_parsing_expected_version_literal = + expected a version literal + +attr_parsing_expects_feature_list = + `{$name}` expects a list of feature names + +attr_parsing_expects_features = + `{$name}` expects feature names + +attr_parsing_incorrect_meta_item = + incorrect meta item + +attr_parsing_incorrect_repr_format_align_one_arg = + incorrect `repr(align)` attribute format: `align` takes exactly one argument in parentheses + +attr_parsing_incorrect_repr_format_expect_literal_integer = + incorrect `repr(align)` attribute format: `align` expects a literal integer as argument + +attr_parsing_incorrect_repr_format_generic = + incorrect `repr({$repr_arg})` attribute format + .suggestion = use parentheses instead + +attr_parsing_incorrect_repr_format_packed_expect_integer = + incorrect `repr(packed)` attribute format: `packed` expects a literal integer as argument + +attr_parsing_incorrect_repr_format_packed_one_or_zero_arg = + incorrect `repr(packed)` attribute format: `packed` takes exactly one parenthesized argument, or no parentheses at all + +attr_parsing_invalid_issue_string = + `issue` must be a non-zero numeric string or "none" + .must_not_be_zero = `issue` must not be "0", use "none" instead + .empty = cannot parse integer from empty string + .invalid_digit = invalid digit found in string + .pos_overflow = number too large to fit in target type + .neg_overflow = number too small to fit in target type + +attr_parsing_invalid_predicate = + invalid predicate `{$predicate}` + +attr_parsing_invalid_repr_align_need_arg = + invalid `repr(align)` attribute: `align` needs an argument + .suggestion = supply an argument here + +attr_parsing_invalid_repr_generic = + invalid `repr({$repr_arg})` attribute: {$error_part} + +attr_parsing_invalid_repr_hint_no_paren = + invalid representation hint: `{$name}` does not take a parenthesized argument list + +attr_parsing_invalid_repr_hint_no_value = + invalid representation hint: `{$name}` does not take a value + +attr_parsing_invalid_since = + 'since' must be a Rust version number, such as "1.31.0" + +attr_parsing_missing_feature = + missing 'feature' + +attr_parsing_missing_issue = + missing 'issue' + +attr_parsing_missing_note = + missing 'note' + +attr_parsing_missing_since = + missing 'since' + +attr_parsing_multiple_item = + multiple '{$item}' items + +attr_parsing_multiple_stability_levels = + multiple stability levels + +attr_parsing_non_ident_feature = + 'feature' is not an identifier + +attr_parsing_rustc_allowed_unstable_pairing = + `rustc_allowed_through_unstable_modules` attribute must be paired with a `stable` attribute + +attr_parsing_rustc_const_stable_indirect_pairing = + `const_stable_indirect` attribute does not make sense on `rustc_const_stable` function, its behavior is already implied + +attr_parsing_rustc_promotable_pairing = + `rustc_promotable` attribute must be paired with either a `rustc_const_unstable` or a `rustc_const_stable` attribute + +attr_parsing_soft_no_args = + `soft` should not have any arguments + +attr_parsing_unknown_meta_item = + unknown meta item '{$item}' + .label = expected one of {$expected} + +attr_parsing_unknown_version_literal = + unknown version literal format, assuming it refers to a future version + +attr_parsing_unstable_cfg_target_compact = + compact `cfg(target(..))` is experimental and subject to change + +attr_parsing_unsupported_literal_cfg_boolean = + literal in `cfg` predicate value must be a boolean +attr_parsing_unsupported_literal_cfg_string = + literal in `cfg` predicate value must be a string +attr_parsing_unsupported_literal_deprecated_kv_pair = + item in `deprecated` must be a key/value pair +attr_parsing_unsupported_literal_deprecated_string = + literal in `deprecated` value must be a string +attr_parsing_unsupported_literal_generic = + unsupported literal +attr_parsing_unsupported_literal_suggestion = + consider removing the prefix diff --git a/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs new file mode 100644 index 00000000000..b9f841800ab --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs @@ -0,0 +1,49 @@ +use rustc_ast::attr::{AttributeExt, filter_by_name}; +use rustc_session::Session; +use rustc_span::symbol::{Symbol, sym}; + +use crate::session_diagnostics; + +pub fn allow_internal_unstable<'a>( + sess: &'a Session, + attrs: &'a [impl AttributeExt], +) -> impl Iterator + 'a { + allow_unstable(sess, attrs, sym::allow_internal_unstable) +} + +pub fn rustc_allow_const_fn_unstable<'a>( + sess: &'a Session, + attrs: &'a [impl AttributeExt], +) -> impl Iterator + 'a { + allow_unstable(sess, attrs, sym::rustc_allow_const_fn_unstable) +} + +fn allow_unstable<'a>( + sess: &'a Session, + attrs: &'a [impl AttributeExt], + symbol: Symbol, +) -> impl Iterator + 'a { + let attrs = filter_by_name(attrs, symbol); + let list = attrs + .filter_map(move |attr| { + attr.meta_item_list().or_else(|| { + sess.dcx().emit_err(session_diagnostics::ExpectsFeatureList { + span: attr.span(), + name: symbol.to_ident_string(), + }); + None + }) + }) + .flatten(); + + list.into_iter().filter_map(move |it| { + let name = it.ident().map(|ident| ident.name); + if name.is_none() { + sess.dcx().emit_err(session_diagnostics::ExpectsFeatures { + span: it.span(), + name: symbol.to_ident_string(), + }); + } + name + }) +} diff --git a/compiler/rustc_attr_parsing/src/attributes/cfg.rs b/compiler/rustc_attr_parsing/src/attributes/cfg.rs new file mode 100644 index 00000000000..8cf8e86100f --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/cfg.rs @@ -0,0 +1,254 @@ +//! Parsing and validation of builtin attributes + +use rustc_ast::{self as ast, LitKind, MetaItem, MetaItemInner, MetaItemKind, MetaItemLit, NodeId}; +use rustc_ast_pretty::pprust; +use rustc_attr_data_structures::RustcVersion; +use rustc_feature::{Features, GatedCfg, find_gated_cfg}; +use rustc_session::Session; +use rustc_session::config::ExpectedValues; +use rustc_session::lint::BuiltinLintDiag; +use rustc_session::lint::builtin::UNEXPECTED_CFGS; +use rustc_session::parse::feature_err; +use rustc_span::Span; +use rustc_span::symbol::{Symbol, kw, sym}; + +use crate::util::UnsupportedLiteralReason; +use crate::{fluent_generated, parse_version, session_diagnostics}; + +#[derive(Clone, Debug)] +pub struct Condition { + pub name: Symbol, + pub name_span: Span, + pub value: Option, + pub value_span: Option, + pub span: Span, +} + +/// Tests if a cfg-pattern matches the cfg set +pub fn cfg_matches( + cfg: &ast::MetaItemInner, + sess: &Session, + lint_node_id: NodeId, + features: Option<&Features>, +) -> bool { + eval_condition(cfg, sess, features, &mut |cfg| { + try_gate_cfg(cfg.name, cfg.span, sess, features); + match sess.psess.check_config.expecteds.get(&cfg.name) { + Some(ExpectedValues::Some(values)) if !values.contains(&cfg.value) => { + sess.psess.buffer_lint( + UNEXPECTED_CFGS, + cfg.span, + lint_node_id, + BuiltinLintDiag::UnexpectedCfgValue( + (cfg.name, cfg.name_span), + cfg.value.map(|v| (v, cfg.value_span.unwrap())), + ), + ); + } + None if sess.psess.check_config.exhaustive_names => { + sess.psess.buffer_lint( + UNEXPECTED_CFGS, + cfg.span, + lint_node_id, + BuiltinLintDiag::UnexpectedCfgName( + (cfg.name, cfg.name_span), + cfg.value.map(|v| (v, cfg.value_span.unwrap())), + ), + ); + } + _ => { /* not unexpected */ } + } + sess.psess.config.contains(&(cfg.name, cfg.value)) + }) +} + +fn try_gate_cfg(name: Symbol, span: Span, sess: &Session, features: Option<&Features>) { + let gate = find_gated_cfg(|sym| sym == name); + if let (Some(feats), Some(gated_cfg)) = (features, gate) { + gate_cfg(gated_cfg, span, sess, feats); + } +} + +#[allow(rustc::untranslatable_diagnostic)] // FIXME: make this translatable +fn gate_cfg(gated_cfg: &GatedCfg, cfg_span: Span, sess: &Session, features: &Features) { + let (cfg, feature, has_feature) = gated_cfg; + if !has_feature(features) && !cfg_span.allows_unstable(*feature) { + let explain = format!("`cfg({cfg})` is experimental and subject to change"); + feature_err(sess, *feature, cfg_span, explain).emit(); + } +} + +/// Evaluate a cfg-like condition (with `any` and `all`), using `eval` to +/// evaluate individual items. +pub fn eval_condition( + cfg: &ast::MetaItemInner, + sess: &Session, + features: Option<&Features>, + eval: &mut impl FnMut(Condition) -> bool, +) -> bool { + let dcx = sess.dcx(); + + let cfg = match cfg { + ast::MetaItemInner::MetaItem(meta_item) => meta_item, + ast::MetaItemInner::Lit(MetaItemLit { kind: LitKind::Bool(b), .. }) => { + if let Some(features) = features { + // we can't use `try_gate_cfg` as symbols don't differentiate between `r#true` + // and `true`, and we want to keep the former working without feature gate + gate_cfg( + &( + if *b { kw::True } else { kw::False }, + sym::cfg_boolean_literals, + |features: &Features| features.cfg_boolean_literals(), + ), + cfg.span(), + sess, + features, + ); + } + return *b; + } + _ => { + dcx.emit_err(session_diagnostics::UnsupportedLiteral { + span: cfg.span(), + reason: UnsupportedLiteralReason::CfgBoolean, + is_bytestr: false, + start_point_span: sess.source_map().start_point(cfg.span()), + }); + return false; + } + }; + + match &cfg.kind { + ast::MetaItemKind::List(mis) if cfg.name_or_empty() == sym::version => { + try_gate_cfg(sym::version, cfg.span, sess, features); + let (min_version, span) = match &mis[..] { + [MetaItemInner::Lit(MetaItemLit { kind: LitKind::Str(sym, ..), span, .. })] => { + (sym, span) + } + [ + MetaItemInner::Lit(MetaItemLit { span, .. }) + | MetaItemInner::MetaItem(MetaItem { span, .. }), + ] => { + dcx.emit_err(session_diagnostics::ExpectedVersionLiteral { span: *span }); + return false; + } + [..] => { + dcx.emit_err(session_diagnostics::ExpectedSingleVersionLiteral { + span: cfg.span, + }); + return false; + } + }; + let Some(min_version) = parse_version(*min_version) else { + dcx.emit_warn(session_diagnostics::UnknownVersionLiteral { span: *span }); + return false; + }; + + // See https://github.com/rust-lang/rust/issues/64796#issuecomment-640851454 for details + if sess.psess.assume_incomplete_release { + RustcVersion::CURRENT > min_version + } else { + RustcVersion::CURRENT >= min_version + } + } + ast::MetaItemKind::List(mis) => { + for mi in mis.iter() { + if mi.meta_item_or_bool().is_none() { + dcx.emit_err(session_diagnostics::UnsupportedLiteral { + span: mi.span(), + reason: UnsupportedLiteralReason::Generic, + is_bytestr: false, + start_point_span: sess.source_map().start_point(mi.span()), + }); + return false; + } + } + + // The unwraps below may look dangerous, but we've already asserted + // that they won't fail with the loop above. + match cfg.name_or_empty() { + sym::any => mis + .iter() + // We don't use any() here, because we want to evaluate all cfg condition + // as eval_condition can (and does) extra checks + .fold(false, |res, mi| res | eval_condition(mi, sess, features, eval)), + sym::all => mis + .iter() + // We don't use all() here, because we want to evaluate all cfg condition + // as eval_condition can (and does) extra checks + .fold(true, |res, mi| res & eval_condition(mi, sess, features, eval)), + sym::not => { + let [mi] = mis.as_slice() else { + dcx.emit_err(session_diagnostics::ExpectedOneCfgPattern { span: cfg.span }); + return false; + }; + + !eval_condition(mi, sess, features, eval) + } + sym::target => { + if let Some(features) = features + && !features.cfg_target_compact() + { + feature_err( + sess, + sym::cfg_target_compact, + cfg.span, + fluent_generated::attr_parsing_unstable_cfg_target_compact, + ) + .emit(); + } + + mis.iter().fold(true, |res, mi| { + let Some(mut mi) = mi.meta_item().cloned() else { + dcx.emit_err(session_diagnostics::CfgPredicateIdentifier { + span: mi.span(), + }); + return false; + }; + + if let [seg, ..] = &mut mi.path.segments[..] { + seg.ident.name = Symbol::intern(&format!("target_{}", seg.ident.name)); + } + + res & eval_condition( + &ast::MetaItemInner::MetaItem(mi), + sess, + features, + eval, + ) + }) + } + _ => { + dcx.emit_err(session_diagnostics::InvalidPredicate { + span: cfg.span, + predicate: pprust::path_to_string(&cfg.path), + }); + false + } + } + } + ast::MetaItemKind::Word | MetaItemKind::NameValue(..) if cfg.path.segments.len() != 1 => { + dcx.emit_err(session_diagnostics::CfgPredicateIdentifier { span: cfg.path.span }); + true + } + MetaItemKind::NameValue(lit) if !lit.kind.is_str() => { + dcx.emit_err(session_diagnostics::UnsupportedLiteral { + span: lit.span, + reason: UnsupportedLiteralReason::CfgString, + is_bytestr: lit.kind.is_bytestr(), + start_point_span: sess.source_map().start_point(lit.span), + }); + true + } + ast::MetaItemKind::Word | ast::MetaItemKind::NameValue(..) => { + let ident = cfg.ident().expect("multi-segment cfg predicate"); + eval(Condition { + name: ident.name, + name_span: ident.span, + value: cfg.value_str(), + value_span: cfg.name_value_literal_span(), + span: cfg.span, + }) + } + } +} diff --git a/compiler/rustc_attr_parsing/src/attributes/confusables.rs b/compiler/rustc_attr_parsing/src/attributes/confusables.rs new file mode 100644 index 00000000000..672fcf05eda --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/confusables.rs @@ -0,0 +1,21 @@ +//! Parsing and validation of builtin attributes + +use rustc_ast::MetaItemInner; +use rustc_ast::attr::AttributeExt; +use rustc_span::symbol::Symbol; + +/// Read the content of a `rustc_confusables` attribute, and return the list of candidate names. +pub fn parse_confusables(attr: &impl AttributeExt) -> Option> { + let metas = attr.meta_item_list()?; + + let mut candidates = Vec::new(); + + for meta in metas { + let MetaItemInner::Lit(meta_lit) = meta else { + return None; + }; + candidates.push(meta_lit.symbol); + } + + Some(candidates) +} diff --git a/compiler/rustc_attr_parsing/src/attributes/deprecation.rs b/compiler/rustc_attr_parsing/src/attributes/deprecation.rs new file mode 100644 index 00000000000..2f9872cc311 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/deprecation.rs @@ -0,0 +1,149 @@ +//! Parsing and validation of builtin attributes + +use rustc_ast::attr::AttributeExt; +use rustc_ast::{MetaItem, MetaItemInner}; +use rustc_ast_pretty::pprust; +use rustc_attr_data_structures::{DeprecatedSince, Deprecation}; +use rustc_feature::Features; +use rustc_session::Session; +use rustc_span::Span; +use rustc_span::symbol::{Symbol, sym}; + +use super::util::UnsupportedLiteralReason; +use crate::{parse_version, session_diagnostics}; + +/// Finds the deprecation attribute. `None` if none exists. +pub fn find_deprecation( + sess: &Session, + features: &Features, + attrs: &[impl AttributeExt], +) -> Option<(Deprecation, Span)> { + let mut depr: Option<(Deprecation, Span)> = None; + let is_rustc = features.staged_api(); + + 'outer: for attr in attrs { + if !attr.has_name(sym::deprecated) { + continue; + } + + let mut since = None; + let mut note = None; + let mut suggestion = None; + + if attr.is_doc_comment() { + continue; + } else if attr.is_word() { + } else if let Some(value) = attr.value_str() { + note = Some(value) + } else if let Some(list) = attr.meta_item_list() { + let get = |meta: &MetaItem, item: &mut Option| { + if item.is_some() { + sess.dcx().emit_err(session_diagnostics::MultipleItem { + span: meta.span, + item: pprust::path_to_string(&meta.path), + }); + return false; + } + if let Some(v) = meta.value_str() { + *item = Some(v); + true + } else { + if let Some(lit) = meta.name_value_literal() { + sess.dcx().emit_err(session_diagnostics::UnsupportedLiteral { + span: lit.span, + reason: UnsupportedLiteralReason::DeprecatedString, + is_bytestr: lit.kind.is_bytestr(), + start_point_span: sess.source_map().start_point(lit.span), + }); + } else { + sess.dcx() + .emit_err(session_diagnostics::IncorrectMetaItem { span: meta.span }); + } + false + } + }; + + for meta in &list { + match meta { + MetaItemInner::MetaItem(mi) => match mi.name_or_empty() { + sym::since => { + if !get(mi, &mut since) { + continue 'outer; + } + } + sym::note => { + if !get(mi, &mut note) { + continue 'outer; + } + } + sym::suggestion => { + if !features.deprecated_suggestion() { + sess.dcx().emit_err( + session_diagnostics::DeprecatedItemSuggestion { + span: mi.span, + is_nightly: sess.is_nightly_build(), + details: (), + }, + ); + } + + if !get(mi, &mut suggestion) { + continue 'outer; + } + } + _ => { + sess.dcx().emit_err(session_diagnostics::UnknownMetaItem { + span: meta.span(), + item: pprust::path_to_string(&mi.path), + expected: if features.deprecated_suggestion() { + &["since", "note", "suggestion"] + } else { + &["since", "note"] + }, + }); + continue 'outer; + } + }, + MetaItemInner::Lit(lit) => { + sess.dcx().emit_err(session_diagnostics::UnsupportedLiteral { + span: lit.span, + reason: UnsupportedLiteralReason::DeprecatedKvPair, + is_bytestr: false, + start_point_span: sess.source_map().start_point(lit.span), + }); + continue 'outer; + } + } + } + } else { + continue; + } + + let since = if let Some(since) = since { + if since.as_str() == "TBD" { + DeprecatedSince::Future + } else if !is_rustc { + DeprecatedSince::NonStandard(since) + } else if let Some(version) = parse_version(since) { + DeprecatedSince::RustcVersion(version) + } else { + sess.dcx().emit_err(session_diagnostics::InvalidSince { span: attr.span() }); + DeprecatedSince::Err + } + } else if is_rustc { + sess.dcx().emit_err(session_diagnostics::MissingSince { span: attr.span() }); + DeprecatedSince::Err + } else { + DeprecatedSince::Unspecified + }; + + if is_rustc && note.is_none() { + sess.dcx().emit_err(session_diagnostics::MissingNote { span: attr.span() }); + continue; + } + + depr = Some((Deprecation { since, note, suggestion }, attr.span())); + } + + depr +} diff --git a/compiler/rustc_attr_parsing/src/attributes/mod.rs b/compiler/rustc_attr_parsing/src/attributes/mod.rs new file mode 100644 index 00000000000..a78e0b54b64 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/mod.rs @@ -0,0 +1,17 @@ +mod allow_unstable; +mod cfg; +mod confusables; +mod deprecation; +mod repr; +mod stability; +mod transparency; + +pub mod util; + +pub use allow_unstable::*; +pub use cfg::*; +pub use confusables::*; +pub use deprecation::*; +pub use repr::*; +pub use stability::*; +pub use transparency::*; diff --git a/compiler/rustc_attr_parsing/src/attributes/repr.rs b/compiler/rustc_attr_parsing/src/attributes/repr.rs new file mode 100644 index 00000000000..008edfe6366 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/repr.rs @@ -0,0 +1,215 @@ +//! Parsing and validation of builtin attributes + +use rustc_abi::Align; +use rustc_ast::attr::AttributeExt; +use rustc_ast::{self as ast, MetaItemKind}; +use rustc_attr_data_structures::IntType; +use rustc_attr_data_structures::ReprAttr::*; +use rustc_session::Session; +use rustc_span::symbol::{Symbol, sym}; + +use crate::ReprAttr; +use crate::session_diagnostics::{self, IncorrectReprFormatGenericCause}; + +/// Parse #[repr(...)] forms. +/// +/// Valid repr contents: any of the primitive integral type names (see +/// `int_type_of_word`, below) to specify enum discriminant type; `C`, to use +/// the same discriminant size that the corresponding C enum would or C +/// structure layout, `packed` to remove padding, and `transparent` to delegate representation +/// concerns to the only non-ZST field. +pub fn find_repr_attrs(sess: &Session, attr: &impl AttributeExt) -> Vec { + if attr.has_name(sym::repr) { parse_repr_attr(sess, attr) } else { Vec::new() } +} + +pub fn parse_repr_attr(sess: &Session, attr: &impl AttributeExt) -> Vec { + assert!(attr.has_name(sym::repr), "expected `#[repr(..)]`, found: {attr:?}"); + let mut acc = Vec::new(); + let dcx = sess.dcx(); + + if let Some(items) = attr.meta_item_list() { + for item in items { + let mut recognised = false; + if item.is_word() { + let hint = match item.name_or_empty() { + sym::Rust => Some(ReprRust), + sym::C => Some(ReprC), + sym::packed => Some(ReprPacked(Align::ONE)), + sym::simd => Some(ReprSimd), + sym::transparent => Some(ReprTransparent), + sym::align => { + sess.dcx().emit_err(session_diagnostics::InvalidReprAlignNeedArg { + span: item.span(), + }); + recognised = true; + None + } + name => int_type_of_word(name).map(ReprInt), + }; + + if let Some(h) = hint { + recognised = true; + acc.push(h); + } + } else if let Some((name, value)) = item.singleton_lit_list() { + let mut literal_error = None; + let mut err_span = item.span(); + if name == sym::align { + recognised = true; + match parse_alignment(&value.kind) { + Ok(literal) => acc.push(ReprAlign(literal)), + Err(message) => { + err_span = value.span; + literal_error = Some(message) + } + }; + } else if name == sym::packed { + recognised = true; + match parse_alignment(&value.kind) { + Ok(literal) => acc.push(ReprPacked(literal)), + Err(message) => { + err_span = value.span; + literal_error = Some(message) + } + }; + } else if matches!(name, sym::Rust | sym::C | sym::simd | sym::transparent) + || int_type_of_word(name).is_some() + { + recognised = true; + sess.dcx().emit_err(session_diagnostics::InvalidReprHintNoParen { + span: item.span(), + name: name.to_ident_string(), + }); + } + if let Some(literal_error) = literal_error { + sess.dcx().emit_err(session_diagnostics::InvalidReprGeneric { + span: err_span, + repr_arg: name.to_ident_string(), + error_part: literal_error, + }); + } + } else if let Some(meta_item) = item.meta_item() { + match &meta_item.kind { + MetaItemKind::NameValue(value) => { + if meta_item.has_name(sym::align) || meta_item.has_name(sym::packed) { + let name = meta_item.name_or_empty().to_ident_string(); + recognised = true; + sess.dcx().emit_err(session_diagnostics::IncorrectReprFormatGeneric { + span: item.span(), + repr_arg: &name, + cause: IncorrectReprFormatGenericCause::from_lit_kind( + item.span(), + &value.kind, + &name, + ), + }); + } else if matches!( + meta_item.name_or_empty(), + sym::Rust | sym::C | sym::simd | sym::transparent + ) || int_type_of_word(meta_item.name_or_empty()).is_some() + { + recognised = true; + sess.dcx().emit_err(session_diagnostics::InvalidReprHintNoValue { + span: meta_item.span, + name: meta_item.name_or_empty().to_ident_string(), + }); + } + } + MetaItemKind::List(nested_items) => { + if meta_item.has_name(sym::align) { + recognised = true; + if let [nested_item] = nested_items.as_slice() { + sess.dcx().emit_err( + session_diagnostics::IncorrectReprFormatExpectInteger { + span: nested_item.span(), + }, + ); + } else { + sess.dcx().emit_err( + session_diagnostics::IncorrectReprFormatAlignOneArg { + span: meta_item.span, + }, + ); + } + } else if meta_item.has_name(sym::packed) { + recognised = true; + if let [nested_item] = nested_items.as_slice() { + sess.dcx().emit_err( + session_diagnostics::IncorrectReprFormatPackedExpectInteger { + span: nested_item.span(), + }, + ); + } else { + sess.dcx().emit_err( + session_diagnostics::IncorrectReprFormatPackedOneOrZeroArg { + span: meta_item.span, + }, + ); + } + } else if matches!( + meta_item.name_or_empty(), + sym::Rust | sym::C | sym::simd | sym::transparent + ) || int_type_of_word(meta_item.name_or_empty()).is_some() + { + recognised = true; + sess.dcx().emit_err(session_diagnostics::InvalidReprHintNoParen { + span: meta_item.span, + name: meta_item.name_or_empty().to_ident_string(), + }); + } + } + _ => (), + } + } + if !recognised { + // Not a word we recognize. This will be caught and reported by + // the `check_mod_attrs` pass, but this pass doesn't always run + // (e.g. if we only pretty-print the source), so we have to gate + // the `span_delayed_bug` call as follows: + if sess.opts.pretty.map_or(true, |pp| pp.needs_analysis()) { + dcx.span_delayed_bug(item.span(), "unrecognized representation hint"); + } + } + } + } + acc +} + +fn int_type_of_word(s: Symbol) -> Option { + use rustc_attr_data_structures::IntType::*; + + match s { + sym::i8 => Some(SignedInt(ast::IntTy::I8)), + sym::u8 => Some(UnsignedInt(ast::UintTy::U8)), + sym::i16 => Some(SignedInt(ast::IntTy::I16)), + sym::u16 => Some(UnsignedInt(ast::UintTy::U16)), + sym::i32 => Some(SignedInt(ast::IntTy::I32)), + sym::u32 => Some(UnsignedInt(ast::UintTy::U32)), + sym::i64 => Some(SignedInt(ast::IntTy::I64)), + sym::u64 => Some(UnsignedInt(ast::UintTy::U64)), + sym::i128 => Some(SignedInt(ast::IntTy::I128)), + sym::u128 => Some(UnsignedInt(ast::UintTy::U128)), + sym::isize => Some(SignedInt(ast::IntTy::Isize)), + sym::usize => Some(UnsignedInt(ast::UintTy::Usize)), + _ => None, + } +} + +pub fn parse_alignment(node: &ast::LitKind) -> Result { + if let ast::LitKind::Int(literal, ast::LitIntType::Unsuffixed) = node { + // `Align::from_bytes` accepts 0 as an input, check is_power_of_two() first + if literal.get().is_power_of_two() { + // Only possible error is larger than 2^29 + literal + .get() + .try_into() + .ok() + .and_then(|v| Align::from_bytes(v).ok()) + .ok_or("larger than 2^29") + } else { + Err("not a power of two") + } + } else { + Err("not an unsuffixed integer") + } +} diff --git a/compiler/rustc_attr_parsing/src/attributes/stability.rs b/compiler/rustc_attr_parsing/src/attributes/stability.rs new file mode 100644 index 00000000000..0d5bd105f05 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/stability.rs @@ -0,0 +1,385 @@ +//! Parsing and validation of builtin attributes + +use std::num::NonZero; + +use rustc_ast::MetaItem; +use rustc_ast::attr::AttributeExt; +use rustc_ast_pretty::pprust; +use rustc_attr_data_structures::{ + ConstStability, DefaultBodyStability, Stability, StabilityLevel, StableSince, UnstableReason, + VERSION_PLACEHOLDER, +}; +use rustc_errors::ErrorGuaranteed; +use rustc_session::Session; +use rustc_span::Span; +use rustc_span::symbol::{Symbol, sym}; + +use crate::attributes::util::UnsupportedLiteralReason; +use crate::{parse_version, session_diagnostics}; + +/// Collects stability info from `stable`/`unstable`/`rustc_allowed_through_unstable_modules` +/// attributes in `attrs`. Returns `None` if no stability attributes are found. +pub fn find_stability( + sess: &Session, + attrs: &[impl AttributeExt], + item_sp: Span, +) -> Option<(Stability, Span)> { + let mut stab: Option<(Stability, Span)> = None; + let mut allowed_through_unstable_modules = false; + + for attr in attrs { + match attr.name_or_empty() { + sym::rustc_allowed_through_unstable_modules => allowed_through_unstable_modules = true, + sym::unstable => { + if stab.is_some() { + sess.dcx().emit_err(session_diagnostics::MultipleStabilityLevels { + span: attr.span(), + }); + break; + } + + if let Some((feature, level)) = parse_unstability(sess, attr) { + stab = Some((Stability { level, feature }, attr.span())); + } + } + sym::stable => { + if stab.is_some() { + sess.dcx().emit_err(session_diagnostics::MultipleStabilityLevels { + span: attr.span(), + }); + break; + } + if let Some((feature, level)) = parse_stability(sess, attr) { + stab = Some((Stability { level, feature }, attr.span())); + } + } + _ => {} + } + } + + if allowed_through_unstable_modules { + match &mut stab { + Some(( + Stability { + level: StabilityLevel::Stable { allowed_through_unstable_modules, .. }, + .. + }, + _, + )) => *allowed_through_unstable_modules = true, + _ => { + sess.dcx() + .emit_err(session_diagnostics::RustcAllowedUnstablePairing { span: item_sp }); + } + } + } + + stab +} + +/// Collects stability info from `rustc_const_stable`/`rustc_const_unstable`/`rustc_promotable` +/// attributes in `attrs`. Returns `None` if no stability attributes are found. +pub fn find_const_stability( + sess: &Session, + attrs: &[impl AttributeExt], + item_sp: Span, +) -> Option<(ConstStability, Span)> { + let mut const_stab: Option<(ConstStability, Span)> = None; + let mut promotable = false; + let mut const_stable_indirect = false; + + for attr in attrs { + match attr.name_or_empty() { + sym::rustc_promotable => promotable = true, + sym::rustc_const_stable_indirect => const_stable_indirect = true, + sym::rustc_const_unstable => { + if const_stab.is_some() { + sess.dcx().emit_err(session_diagnostics::MultipleStabilityLevels { + span: attr.span(), + }); + break; + } + + if let Some((feature, level)) = parse_unstability(sess, attr) { + const_stab = Some(( + ConstStability { + level, + feature, + const_stable_indirect: false, + promotable: false, + }, + attr.span(), + )); + } + } + sym::rustc_const_stable => { + if const_stab.is_some() { + sess.dcx().emit_err(session_diagnostics::MultipleStabilityLevels { + span: attr.span(), + }); + break; + } + if let Some((feature, level)) = parse_stability(sess, attr) { + const_stab = Some(( + ConstStability { + level, + feature, + const_stable_indirect: false, + promotable: false, + }, + attr.span(), + )); + } + } + _ => {} + } + } + + // Merge promotable and const_stable_indirect into stability info + if promotable { + match &mut const_stab { + Some((stab, _)) => stab.promotable = promotable, + _ => { + _ = sess + .dcx() + .emit_err(session_diagnostics::RustcPromotablePairing { span: item_sp }) + } + } + } + if const_stable_indirect { + match &mut const_stab { + Some((stab, _)) => { + if stab.is_const_unstable() { + stab.const_stable_indirect = true; + } else { + _ = sess.dcx().emit_err(session_diagnostics::RustcConstStableIndirectPairing { + span: item_sp, + }) + } + } + _ => { + // This function has no const stability attribute, but has `const_stable_indirect`. + // We ignore that; unmarked functions are subject to recursive const stability + // checks by default so we do carry out the user's intent. + } + } + } + + const_stab +} + +/// Calculates the const stability for a const function in a `-Zforce-unstable-if-unmarked` crate +/// without the `staged_api` feature. +pub fn unmarked_crate_const_stab( + _sess: &Session, + attrs: &[impl AttributeExt], + regular_stab: Stability, +) -> ConstStability { + assert!(regular_stab.level.is_unstable()); + // The only attribute that matters here is `rustc_const_stable_indirect`. + // We enforce recursive const stability rules for those functions. + let const_stable_indirect = + attrs.iter().any(|a| a.name_or_empty() == sym::rustc_const_stable_indirect); + ConstStability { + feature: regular_stab.feature, + const_stable_indirect, + promotable: false, + level: regular_stab.level, + } +} + +/// Collects stability info from `rustc_default_body_unstable` attributes in `attrs`. +/// Returns `None` if no stability attributes are found. +pub fn find_body_stability( + sess: &Session, + attrs: &[impl AttributeExt], +) -> Option<(DefaultBodyStability, Span)> { + let mut body_stab: Option<(DefaultBodyStability, Span)> = None; + + for attr in attrs { + if attr.has_name(sym::rustc_default_body_unstable) { + if body_stab.is_some() { + sess.dcx() + .emit_err(session_diagnostics::MultipleStabilityLevels { span: attr.span() }); + break; + } + + if let Some((feature, level)) = parse_unstability(sess, attr) { + body_stab = Some((DefaultBodyStability { level, feature }, attr.span())); + } + } + } + + body_stab +} + +fn insert_or_error(sess: &Session, meta: &MetaItem, item: &mut Option) -> Option<()> { + if item.is_some() { + sess.dcx().emit_err(session_diagnostics::MultipleItem { + span: meta.span, + item: pprust::path_to_string(&meta.path), + }); + None + } else if let Some(v) = meta.value_str() { + *item = Some(v); + Some(()) + } else { + sess.dcx().emit_err(session_diagnostics::IncorrectMetaItem { span: meta.span }); + None + } +} + +/// Read the content of a `stable`/`rustc_const_stable` attribute, and return the feature name and +/// its stability information. +fn parse_stability(sess: &Session, attr: &impl AttributeExt) -> Option<(Symbol, StabilityLevel)> { + let metas = attr.meta_item_list()?; + + let mut feature = None; + let mut since = None; + for meta in metas { + let Some(mi) = meta.meta_item() else { + sess.dcx().emit_err(session_diagnostics::UnsupportedLiteral { + span: meta.span(), + reason: UnsupportedLiteralReason::Generic, + is_bytestr: false, + start_point_span: sess.source_map().start_point(meta.span()), + }); + return None; + }; + + match mi.name_or_empty() { + sym::feature => insert_or_error(sess, mi, &mut feature)?, + sym::since => insert_or_error(sess, mi, &mut since)?, + _ => { + sess.dcx().emit_err(session_diagnostics::UnknownMetaItem { + span: meta.span(), + item: pprust::path_to_string(&mi.path), + expected: &["feature", "since"], + }); + return None; + } + } + } + + let feature = match feature { + Some(feature) if rustc_lexer::is_ident(feature.as_str()) => Ok(feature), + Some(_bad_feature) => { + Err(sess.dcx().emit_err(session_diagnostics::NonIdentFeature { span: attr.span() })) + } + None => Err(sess.dcx().emit_err(session_diagnostics::MissingFeature { span: attr.span() })), + }; + + let since = if let Some(since) = since { + if since.as_str() == VERSION_PLACEHOLDER { + StableSince::Current + } else if let Some(version) = parse_version(since) { + StableSince::Version(version) + } else { + sess.dcx().emit_err(session_diagnostics::InvalidSince { span: attr.span() }); + StableSince::Err + } + } else { + sess.dcx().emit_err(session_diagnostics::MissingSince { span: attr.span() }); + StableSince::Err + }; + + match feature { + Ok(feature) => { + let level = StabilityLevel::Stable { since, allowed_through_unstable_modules: false }; + Some((feature, level)) + } + Err(ErrorGuaranteed { .. }) => None, + } +} + +/// Read the content of a `unstable`/`rustc_const_unstable`/`rustc_default_body_unstable` +/// attribute, and return the feature name and its stability information. +fn parse_unstability(sess: &Session, attr: &impl AttributeExt) -> Option<(Symbol, StabilityLevel)> { + let metas = attr.meta_item_list()?; + + let mut feature = None; + let mut reason = None; + let mut issue = None; + let mut issue_num = None; + let mut is_soft = false; + let mut implied_by = None; + for meta in metas { + let Some(mi) = meta.meta_item() else { + sess.dcx().emit_err(session_diagnostics::UnsupportedLiteral { + span: meta.span(), + reason: UnsupportedLiteralReason::Generic, + is_bytestr: false, + start_point_span: sess.source_map().start_point(meta.span()), + }); + return None; + }; + + match mi.name_or_empty() { + sym::feature => insert_or_error(sess, mi, &mut feature)?, + sym::reason => insert_or_error(sess, mi, &mut reason)?, + sym::issue => { + insert_or_error(sess, mi, &mut issue)?; + + // These unwraps are safe because `insert_or_error` ensures the meta item + // is a name/value pair string literal. + issue_num = match issue.unwrap().as_str() { + "none" => None, + issue => match issue.parse::>() { + Ok(num) => Some(num), + Err(err) => { + sess.dcx().emit_err( + session_diagnostics::InvalidIssueString { + span: mi.span, + cause: session_diagnostics::InvalidIssueStringCause::from_int_error_kind( + mi.name_value_literal_span().unwrap(), + err.kind(), + ), + }, + ); + return None; + } + }, + }; + } + sym::soft => { + if !mi.is_word() { + sess.dcx().emit_err(session_diagnostics::SoftNoArgs { span: mi.span }); + } + is_soft = true; + } + sym::implied_by => insert_or_error(sess, mi, &mut implied_by)?, + _ => { + sess.dcx().emit_err(session_diagnostics::UnknownMetaItem { + span: meta.span(), + item: pprust::path_to_string(&mi.path), + expected: &["feature", "reason", "issue", "soft", "implied_by"], + }); + return None; + } + } + } + + let feature = match feature { + Some(feature) if rustc_lexer::is_ident(feature.as_str()) => Ok(feature), + Some(_bad_feature) => { + Err(sess.dcx().emit_err(session_diagnostics::NonIdentFeature { span: attr.span() })) + } + None => Err(sess.dcx().emit_err(session_diagnostics::MissingFeature { span: attr.span() })), + }; + + let issue = issue.ok_or_else(|| { + sess.dcx().emit_err(session_diagnostics::MissingIssue { span: attr.span() }) + }); + + match (feature, issue) { + (Ok(feature), Ok(_)) => { + let level = StabilityLevel::Unstable { + reason: UnstableReason::from_opt_reason(reason), + issue: issue_num, + is_soft, + implied_by, + }; + Some((feature, level)) + } + (Err(ErrorGuaranteed { .. }), _) | (_, Err(ErrorGuaranteed { .. })) => None, + } +} diff --git a/compiler/rustc_attr_parsing/src/attributes/transparency.rs b/compiler/rustc_attr_parsing/src/attributes/transparency.rs new file mode 100644 index 00000000000..f4065a77048 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/transparency.rs @@ -0,0 +1,36 @@ +use rustc_ast::attr::AttributeExt; +use rustc_attr_data_structures::TransparencyError; +use rustc_span::hygiene::Transparency; +use rustc_span::sym; + +pub fn find_transparency( + attrs: &[impl AttributeExt], + macro_rules: bool, +) -> (Transparency, Option) { + let mut transparency = None; + let mut error = None; + for attr in attrs { + if attr.has_name(sym::rustc_macro_transparency) { + if let Some((_, old_span)) = transparency { + error = Some(TransparencyError::MultipleTransparencyAttrs(old_span, attr.span())); + break; + } else if let Some(value) = attr.value_str() { + transparency = Some(( + match value { + sym::transparent => Transparency::Transparent, + sym::semitransparent => Transparency::SemiTransparent, + sym::opaque => Transparency::Opaque, + _ => { + error = + Some(TransparencyError::UnknownTransparency(value, attr.span())); + continue; + } + }, + attr.span(), + )); + } + } + } + let fallback = if macro_rules { Transparency::SemiTransparent } else { Transparency::Opaque }; + (transparency.map_or(fallback, |t| t.0), error) +} diff --git a/compiler/rustc_attr_parsing/src/attributes/util.rs b/compiler/rustc_attr_parsing/src/attributes/util.rs new file mode 100644 index 00000000000..c59d2fec1dc --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/util.rs @@ -0,0 +1,36 @@ +use rustc_ast::attr::{AttributeExt, first_attr_value_str_by_name}; +use rustc_attr_data_structures::RustcVersion; +use rustc_feature::is_builtin_attr_name; +use rustc_span::symbol::{Symbol, sym}; + +pub(crate) enum UnsupportedLiteralReason { + Generic, + CfgString, + CfgBoolean, + DeprecatedString, + DeprecatedKvPair, +} + +pub fn is_builtin_attr(attr: &impl AttributeExt) -> bool { + attr.is_doc_comment() || attr.ident().is_some_and(|ident| is_builtin_attr_name(ident.name)) +} + +pub fn find_crate_name(attrs: &[impl AttributeExt]) -> Option { + first_attr_value_str_by_name(attrs, sym::crate_name) +} + +/// Parse a rustc version number written inside string literal in an attribute, +/// like appears in `since = "1.0.0"`. Suffixes like "-dev" and "-nightly" are +/// not accepted in this position, unlike when parsing CFG_RELEASE. +pub fn parse_version(s: Symbol) -> Option { + let mut components = s.as_str().split('-'); + let d = components.next()?; + if components.next().is_some() { + return None; + } + let mut digits = d.splitn(3, '.'); + let major = digits.next()?.parse().ok()?; + let minor = digits.next()?.parse().ok()?; + let patch = digits.next().unwrap_or("0").parse().ok()?; + Some(RustcVersion { major, minor, patch }) +} diff --git a/compiler/rustc_attr_parsing/src/lib.rs b/compiler/rustc_attr_parsing/src/lib.rs new file mode 100644 index 00000000000..a1264a6875f --- /dev/null +++ b/compiler/rustc_attr_parsing/src/lib.rs @@ -0,0 +1,22 @@ +//! Functions and types dealing with attributes and meta items. +//! +//! FIXME(Centril): For now being, much of the logic is still in `rustc_ast::attr`. +//! The goal is to move the definition of `MetaItem` and things that don't need to be in `syntax` +//! to this crate. + +// tidy-alphabetical-start +#![allow(internal_features)] +#![doc(rust_logo)] +#![feature(let_chains)] +#![feature(rustdoc_internals)] +#![warn(unreachable_pub)] +// tidy-alphabetical-end + +mod attributes; +mod session_diagnostics; + +pub use attributes::*; +pub use rustc_attr_data_structures::*; +pub use util::{find_crate_name, is_builtin_attr, parse_version}; + +rustc_fluent_macro::fluent_messages! { "../messages.ftl" } diff --git a/compiler/rustc_attr_parsing/src/session_diagnostics.rs b/compiler/rustc_attr_parsing/src/session_diagnostics.rs new file mode 100644 index 00000000000..b1d8ec49774 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/session_diagnostics.rs @@ -0,0 +1,419 @@ +use std::num::IntErrorKind; + +use rustc_ast as ast; +use rustc_errors::codes::*; +use rustc_errors::{Applicability, Diag, DiagCtxtHandle, Diagnostic, EmissionGuarantee, Level}; +use rustc_macros::{Diagnostic, Subdiagnostic}; +use rustc_span::{Span, Symbol}; + +use crate::attributes::util::UnsupportedLiteralReason; +use crate::fluent_generated as fluent; + +#[derive(Diagnostic)] +#[diag(attr_parsing_expected_one_cfg_pattern, code = E0536)] +pub(crate) struct ExpectedOneCfgPattern { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_invalid_predicate, code = E0537)] +pub(crate) struct InvalidPredicate { + #[primary_span] + pub span: Span, + + pub predicate: String, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_multiple_item, code = E0538)] +pub(crate) struct MultipleItem { + #[primary_span] + pub span: Span, + + pub item: String, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_incorrect_meta_item, code = E0539)] +pub(crate) struct IncorrectMetaItem { + #[primary_span] + pub span: Span, +} + +/// Error code: E0541 +pub(crate) struct UnknownMetaItem<'a> { + pub span: Span, + pub item: String, + pub expected: &'a [&'a str], +} + +// Manual implementation to be able to format `expected` items correctly. +impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for UnknownMetaItem<'_> { + fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, G> { + let expected = self.expected.iter().map(|name| format!("`{name}`")).collect::>(); + Diag::new(dcx, level, fluent::attr_parsing_unknown_meta_item) + .with_span(self.span) + .with_code(E0541) + .with_arg("item", self.item) + .with_arg("expected", expected.join(", ")) + .with_span_label(self.span, fluent::attr_parsing_label) + } +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_missing_since, code = E0542)] +pub(crate) struct MissingSince { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_missing_note, code = E0543)] +pub(crate) struct MissingNote { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_multiple_stability_levels, code = E0544)] +pub(crate) struct MultipleStabilityLevels { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_invalid_issue_string, code = E0545)] +pub(crate) struct InvalidIssueString { + #[primary_span] + pub span: Span, + + #[subdiagnostic] + pub cause: Option, +} + +// The error kinds of `IntErrorKind` are duplicated here in order to allow the messages to be +// translatable. +#[derive(Subdiagnostic)] +pub(crate) enum InvalidIssueStringCause { + #[label(attr_parsing_must_not_be_zero)] + MustNotBeZero { + #[primary_span] + span: Span, + }, + + #[label(attr_parsing_empty)] + Empty { + #[primary_span] + span: Span, + }, + + #[label(attr_parsing_invalid_digit)] + InvalidDigit { + #[primary_span] + span: Span, + }, + + #[label(attr_parsing_pos_overflow)] + PosOverflow { + #[primary_span] + span: Span, + }, + + #[label(attr_parsing_neg_overflow)] + NegOverflow { + #[primary_span] + span: Span, + }, +} + +impl InvalidIssueStringCause { + pub(crate) fn from_int_error_kind(span: Span, kind: &IntErrorKind) -> Option { + match kind { + IntErrorKind::Empty => Some(Self::Empty { span }), + IntErrorKind::InvalidDigit => Some(Self::InvalidDigit { span }), + IntErrorKind::PosOverflow => Some(Self::PosOverflow { span }), + IntErrorKind::NegOverflow => Some(Self::NegOverflow { span }), + IntErrorKind::Zero => Some(Self::MustNotBeZero { span }), + _ => None, + } + } +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_missing_feature, code = E0546)] +pub(crate) struct MissingFeature { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_non_ident_feature, code = E0546)] +pub(crate) struct NonIdentFeature { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_missing_issue, code = E0547)] +pub(crate) struct MissingIssue { + #[primary_span] + pub span: Span, +} + +// FIXME: Why is this the same error code as `InvalidReprHintNoParen` and `InvalidReprHintNoValue`? +// It is more similar to `IncorrectReprFormatGeneric`. +#[derive(Diagnostic)] +#[diag(attr_parsing_incorrect_repr_format_packed_one_or_zero_arg, code = E0552)] +pub(crate) struct IncorrectReprFormatPackedOneOrZeroArg { + #[primary_span] + pub span: Span, +} +#[derive(Diagnostic)] +#[diag(attr_parsing_incorrect_repr_format_packed_expect_integer, code = E0552)] +pub(crate) struct IncorrectReprFormatPackedExpectInteger { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_invalid_repr_hint_no_paren, code = E0552)] +pub(crate) struct InvalidReprHintNoParen { + #[primary_span] + pub span: Span, + + pub name: String, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_invalid_repr_hint_no_value, code = E0552)] +pub(crate) struct InvalidReprHintNoValue { + #[primary_span] + pub span: Span, + + pub name: String, +} + +/// Error code: E0565 +pub(crate) struct UnsupportedLiteral { + pub span: Span, + pub reason: UnsupportedLiteralReason, + pub is_bytestr: bool, + pub start_point_span: Span, +} + +impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for UnsupportedLiteral { + fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, G> { + let mut diag = Diag::new(dcx, level, match self.reason { + UnsupportedLiteralReason::Generic => fluent::attr_parsing_unsupported_literal_generic, + UnsupportedLiteralReason::CfgString => { + fluent::attr_parsing_unsupported_literal_cfg_string + } + UnsupportedLiteralReason::CfgBoolean => { + fluent::attr_parsing_unsupported_literal_cfg_boolean + } + UnsupportedLiteralReason::DeprecatedString => { + fluent::attr_parsing_unsupported_literal_deprecated_string + } + UnsupportedLiteralReason::DeprecatedKvPair => { + fluent::attr_parsing_unsupported_literal_deprecated_kv_pair + } + }); + diag.span(self.span); + diag.code(E0565); + if self.is_bytestr { + diag.span_suggestion( + self.start_point_span, + fluent::attr_parsing_unsupported_literal_suggestion, + "", + Applicability::MaybeIncorrect, + ); + } + diag + } +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_invalid_repr_align_need_arg, code = E0589)] +pub(crate) struct InvalidReprAlignNeedArg { + #[primary_span] + #[suggestion(code = "align(...)", applicability = "has-placeholders")] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_invalid_repr_generic, code = E0589)] +pub(crate) struct InvalidReprGeneric<'a> { + #[primary_span] + pub span: Span, + + pub repr_arg: String, + pub error_part: &'a str, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_incorrect_repr_format_align_one_arg, code = E0693)] +pub(crate) struct IncorrectReprFormatAlignOneArg { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_incorrect_repr_format_expect_literal_integer, code = E0693)] +pub(crate) struct IncorrectReprFormatExpectInteger { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_incorrect_repr_format_generic, code = E0693)] +pub(crate) struct IncorrectReprFormatGeneric<'a> { + #[primary_span] + pub span: Span, + + pub repr_arg: &'a str, + + #[subdiagnostic] + pub cause: Option>, +} + +#[derive(Subdiagnostic)] +pub(crate) enum IncorrectReprFormatGenericCause<'a> { + #[suggestion( + attr_parsing_suggestion, + code = "{name}({int})", + applicability = "machine-applicable" + )] + Int { + #[primary_span] + span: Span, + + #[skip_arg] + name: &'a str, + + #[skip_arg] + int: u128, + }, + + #[suggestion( + attr_parsing_suggestion, + code = "{name}({symbol})", + applicability = "machine-applicable" + )] + Symbol { + #[primary_span] + span: Span, + + #[skip_arg] + name: &'a str, + + #[skip_arg] + symbol: Symbol, + }, +} + +impl<'a> IncorrectReprFormatGenericCause<'a> { + pub(crate) fn from_lit_kind(span: Span, kind: &ast::LitKind, name: &'a str) -> Option { + match kind { + ast::LitKind::Int(int, ast::LitIntType::Unsuffixed) => { + Some(Self::Int { span, name, int: int.get() }) + } + ast::LitKind::Str(symbol, _) => Some(Self::Symbol { span, name, symbol: *symbol }), + _ => None, + } + } +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_rustc_promotable_pairing, code = E0717)] +pub(crate) struct RustcPromotablePairing { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_rustc_const_stable_indirect_pairing)] +pub(crate) struct RustcConstStableIndirectPairing { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_rustc_allowed_unstable_pairing, code = E0789)] +pub(crate) struct RustcAllowedUnstablePairing { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_cfg_predicate_identifier)] +pub(crate) struct CfgPredicateIdentifier { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_deprecated_item_suggestion)] +pub(crate) struct DeprecatedItemSuggestion { + #[primary_span] + pub span: Span, + + #[help] + pub is_nightly: bool, + + #[note] + pub details: (), +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_expected_single_version_literal)] +pub(crate) struct ExpectedSingleVersionLiteral { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_expected_version_literal)] +pub(crate) struct ExpectedVersionLiteral { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_expects_feature_list)] +pub(crate) struct ExpectsFeatureList { + #[primary_span] + pub span: Span, + + pub name: String, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_expects_features)] +pub(crate) struct ExpectsFeatures { + #[primary_span] + pub span: Span, + + pub name: String, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_invalid_since)] +pub(crate) struct InvalidSince { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_soft_no_args)] +pub(crate) struct SoftNoArgs { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_unknown_version_literal)] +pub(crate) struct UnknownVersionLiteral { + #[primary_span] + pub span: Span, +} diff --git a/compiler/rustc_builtin_macros/Cargo.toml b/compiler/rustc_builtin_macros/Cargo.toml index ef48486f6f1..b50cb35b8e9 100644 --- a/compiler/rustc_builtin_macros/Cargo.toml +++ b/compiler/rustc_builtin_macros/Cargo.toml @@ -14,7 +14,7 @@ doctest = false # tidy-alphabetical-start rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_expand = { path = "../rustc_expand" } diff --git a/compiler/rustc_builtin_macros/src/cfg.rs b/compiler/rustc_builtin_macros/src/cfg.rs index 15993dbf5ec..6e90f1682e3 100644 --- a/compiler/rustc_builtin_macros/src/cfg.rs +++ b/compiler/rustc_builtin_macros/src/cfg.rs @@ -7,7 +7,7 @@ use rustc_ast::tokenstream::TokenStream; use rustc_errors::PResult; use rustc_expand::base::{DummyResult, ExpandResult, ExtCtxt, MacEager, MacroExpanderResult}; use rustc_span::Span; -use {rustc_ast as ast, rustc_attr as attr}; +use {rustc_ast as ast, rustc_attr_parsing as attr}; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/deriving/coerce_pointee.rs b/compiler/rustc_builtin_macros/src/deriving/coerce_pointee.rs index 3bd8f899a4a..b91d6ced123 100644 --- a/compiler/rustc_builtin_macros/src/deriving/coerce_pointee.rs +++ b/compiler/rustc_builtin_macros/src/deriving/coerce_pointee.rs @@ -6,7 +6,7 @@ use rustc_ast::{ self as ast, GenericArg, GenericBound, GenericParamKind, ItemKind, MetaItem, TraitBoundModifiers, VariantData, WherePredicate, }; -use rustc_attr as attr; +use rustc_attr_parsing as attr; use rustc_data_structures::flat_map_in_place::FlatMapInPlace; use rustc_expand::base::{Annotatable, ExtCtxt}; use rustc_macros::Diagnostic; diff --git a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs index 846d8784dea..1c5ff6c9ef2 100644 --- a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs +++ b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs @@ -185,7 +185,7 @@ use rustc_ast::{ self as ast, AnonConst, BindingMode, ByRef, EnumDef, Expr, GenericArg, GenericParamKind, Generics, Mutability, PatKind, VariantData, }; -use rustc_attr as attr; +use rustc_attr_parsing as attr; use rustc_expand::base::{Annotatable, ExtCtxt}; use rustc_span::symbol::{Ident, Symbol, kw, sym}; use rustc_span::{DUMMY_SP, Span}; diff --git a/compiler/rustc_codegen_gcc/src/attributes.rs b/compiler/rustc_codegen_gcc/src/attributes.rs index d20e13e15b9..028a5ab5f71 100644 --- a/compiler/rustc_codegen_gcc/src/attributes.rs +++ b/compiler/rustc_codegen_gcc/src/attributes.rs @@ -2,8 +2,8 @@ use gccjit::FnAttribute; use gccjit::Function; #[cfg(feature = "master")] -use rustc_attr::InlineAttr; -use rustc_attr::InstructionSetAttr; +use rustc_attr_parsing::InlineAttr; +use rustc_attr_parsing::InstructionSetAttr; #[cfg(feature = "master")] use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags; use rustc_middle::ty; diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs index bb0f2fa5b01..f2efa981f97 100644 --- a/compiler/rustc_codegen_gcc/src/lib.rs +++ b/compiler/rustc_codegen_gcc/src/lib.rs @@ -35,7 +35,7 @@ extern crate tracing; extern crate rustc_abi; extern crate rustc_apfloat; extern crate rustc_ast; -extern crate rustc_attr; +extern crate rustc_attr_parsing; extern crate rustc_codegen_ssa; extern crate rustc_data_structures; extern crate rustc_errors; diff --git a/compiler/rustc_codegen_llvm/Cargo.toml b/compiler/rustc_codegen_llvm/Cargo.toml index 03a871297c4..689986d642d 100644 --- a/compiler/rustc_codegen_llvm/Cargo.toml +++ b/compiler/rustc_codegen_llvm/Cargo.toml @@ -16,7 +16,7 @@ object = { version = "0.36.3", default-features = false, features = ["std", "rea rustc-demangle = "0.1.21" rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_codegen_ssa = { path = "../rustc_codegen_ssa" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs index 5552a241060..f8454fd9960 100644 --- a/compiler/rustc_codegen_llvm/src/attributes.rs +++ b/compiler/rustc_codegen_llvm/src/attributes.rs @@ -1,6 +1,6 @@ //! Set and unset common attributes on LLVM values. -use rustc_attr::{InlineAttr, InstructionSetAttr, OptimizeAttr}; +use rustc_attr_parsing::{InlineAttr, InstructionSetAttr, OptimizeAttr}; use rustc_codegen_ssa::traits::*; use rustc_hir::def_id::DefId; use rustc_middle::middle::codegen_fn_attrs::{CodegenFnAttrFlags, PatchableFunctionEntry}; diff --git a/compiler/rustc_codegen_llvm/src/callee.rs b/compiler/rustc_codegen_llvm/src/callee.rs index ec77f32caf4..aa9a0f34f55 100644 --- a/compiler/rustc_codegen_llvm/src/callee.rs +++ b/compiler/rustc_codegen_llvm/src/callee.rs @@ -106,7 +106,7 @@ pub(crate) fn get_fn<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, instance: Instance<'t // This is a monomorphization of a generic function. if !(cx.tcx.sess.opts.share_generics() || tcx.codegen_fn_attrs(instance_def_id).inline - == rustc_attr::InlineAttr::Never) + == rustc_attr_parsing::InlineAttr::Never) { // When not sharing generics, all instances are in the same // crate and have hidden visibility. diff --git a/compiler/rustc_codegen_ssa/Cargo.toml b/compiler/rustc_codegen_ssa/Cargo.toml index f5c155667ba..628543443b3 100644 --- a/compiler/rustc_codegen_ssa/Cargo.toml +++ b/compiler/rustc_codegen_ssa/Cargo.toml @@ -17,7 +17,7 @@ rustc_abi = { path = "../rustc_abi" } rustc_arena = { path = "../rustc_arena" } rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index cfd40a575b1..dee6dd7b262 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -2982,7 +2982,7 @@ fn add_dynamic_crate(cmd: &mut dyn Linker, sess: &Session, cratepath: &Path) { fn relevant_lib(sess: &Session, lib: &NativeLib) -> bool { match lib.cfg { - Some(ref cfg) => rustc_attr::cfg_matches(cfg, sess, CRATE_NODE_ID, None), + Some(ref cfg) => rustc_attr_parsing::cfg_matches(cfg, sess, CRATE_NODE_ID, None), None => true, } } diff --git a/compiler/rustc_codegen_ssa/src/back/symbol_export.rs b/compiler/rustc_codegen_ssa/src/back/symbol_export.rs index 788a8a13b3e..60ab2919352 100644 --- a/compiler/rustc_codegen_ssa/src/back/symbol_export.rs +++ b/compiler/rustc_codegen_ssa/src/back/symbol_export.rs @@ -311,7 +311,8 @@ fn exported_symbols_provider_local( } if !tcx.sess.opts.share_generics() { - if tcx.codegen_fn_attrs(mono_item.def_id()).inline == rustc_attr::InlineAttr::Never + if tcx.codegen_fn_attrs(mono_item.def_id()).inline + == rustc_attr_parsing::InlineAttr::Never { // this is OK, we explicitly allow sharing inline(never) across crates even // without share-generics. diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index 828f82ddde3..dab035d3339 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -30,7 +30,7 @@ use rustc_trait_selection::infer::at::ToTrace; use rustc_trait_selection::infer::{BoundRegionConversionTime, TyCtxtInferExt}; use rustc_trait_selection::traits::{ObligationCause, ObligationCtxt}; use tracing::{debug, info}; -use {rustc_ast as ast, rustc_attr as attr}; +use {rustc_ast as ast, rustc_attr_parsing as attr}; use crate::assert_module_sources::CguReuse; use crate::back::link::are_upstream_rust_objects_already_included; diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index c88b625060e..b243f904aee 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -1,6 +1,6 @@ use rustc_ast::attr::list_contains_name; use rustc_ast::{MetaItemInner, attr}; -use rustc_attr::{InlineAttr, InstructionSetAttr, OptimizeAttr}; +use rustc_attr_parsing::{InlineAttr, InstructionSetAttr, OptimizeAttr}; use rustc_data_structures::fx::FxHashMap; use rustc_errors::codes::*; use rustc_errors::{DiagMessage, SubdiagMessage, struct_span_code_err}; @@ -426,7 +426,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { && let [item] = items.as_slice() && let Some((sym::align, literal)) = item.singleton_lit_list() { - rustc_attr::parse_alignment(&literal.kind) + rustc_attr_parsing::parse_alignment(&literal.kind) .map_err(|msg| { struct_span_code_err!( tcx.dcx(), diff --git a/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs b/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs index c08758a9796..cac3cc587cb 100644 --- a/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs +++ b/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs @@ -1,4 +1,4 @@ -use rustc_attr::InstructionSetAttr; +use rustc_attr_parsing::InstructionSetAttr; use rustc_middle::mir::mono::{Linkage, MonoItem, MonoItemData, Visibility}; use rustc_middle::mir::{Body, InlineAsmOperand}; use rustc_middle::ty::layout::{HasTyCtxt, HasTypingEnv, LayoutOf}; diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs index a84f5c74d1e..c31e8aa7d31 100644 --- a/compiler/rustc_codegen_ssa/src/target_features.rs +++ b/compiler/rustc_codegen_ssa/src/target_features.rs @@ -1,4 +1,4 @@ -use rustc_attr::InstructionSetAttr; +use rustc_attr_parsing::InstructionSetAttr; use rustc_data_structures::fx::FxIndexSet; use rustc_data_structures::unord::{UnordMap, UnordSet}; use rustc_errors::Applicability; diff --git a/compiler/rustc_const_eval/Cargo.toml b/compiler/rustc_const_eval/Cargo.toml index 41136019a88..7717cd2c696 100644 --- a/compiler/rustc_const_eval/Cargo.toml +++ b/compiler/rustc_const_eval/Cargo.toml @@ -9,7 +9,7 @@ either = "1" rustc_abi = { path = "../rustc_abi" } rustc_apfloat = "0.2.0" rustc_ast = { path = "../rustc_ast" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } diff --git a/compiler/rustc_const_eval/src/check_consts/check.rs b/compiler/rustc_const_eval/src/check_consts/check.rs index 16610ebfca2..f4257ad9671 100644 --- a/compiler/rustc_const_eval/src/check_consts/check.rs +++ b/compiler/rustc_const_eval/src/check_consts/check.rs @@ -6,7 +6,7 @@ use std::mem; use std::num::NonZero; use std::ops::Deref; -use rustc_attr::{ConstStability, StabilityLevel}; +use rustc_attr_parsing::{ConstStability, StabilityLevel}; use rustc_errors::{Diag, ErrorGuaranteed}; use rustc_hir::def_id::DefId; use rustc_hir::{self as hir, LangItem}; diff --git a/compiler/rustc_const_eval/src/check_consts/mod.rs b/compiler/rustc_const_eval/src/check_consts/mod.rs index 80d3c6448aa..ab68691f1b9 100644 --- a/compiler/rustc_const_eval/src/check_consts/mod.rs +++ b/compiler/rustc_const_eval/src/check_consts/mod.rs @@ -9,7 +9,7 @@ use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_middle::ty::{self, PolyFnSig, TyCtxt}; use rustc_middle::{bug, mir}; use rustc_span::Symbol; -use {rustc_attr as attr, rustc_hir as hir}; +use {rustc_attr_parsing as attr, rustc_hir as hir}; pub use self::qualifs::Qualif; diff --git a/compiler/rustc_driver_impl/Cargo.toml b/compiler/rustc_driver_impl/Cargo.toml index 81f15ebcbf8..2f0fe64b096 100644 --- a/compiler/rustc_driver_impl/Cargo.toml +++ b/compiler/rustc_driver_impl/Cargo.toml @@ -9,7 +9,7 @@ rustc_ast = { path = "../rustc_ast" } rustc_ast_lowering = { path = "../rustc_ast_lowering" } rustc_ast_passes = { path = "../rustc_ast_passes" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_borrowck = { path = "../rustc_borrowck" } rustc_builtin_macros = { path = "../rustc_builtin_macros" } rustc_codegen_ssa = { path = "../rustc_codegen_ssa" } diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs index b80736f41ad..9728f848ce8 100644 --- a/compiler/rustc_driver_impl/src/lib.rs +++ b/compiler/rustc_driver_impl/src/lib.rs @@ -112,7 +112,7 @@ pub static DEFAULT_LOCALE_RESOURCES: &[&str] = &[ crate::DEFAULT_LOCALE_RESOURCE, rustc_ast_lowering::DEFAULT_LOCALE_RESOURCE, rustc_ast_passes::DEFAULT_LOCALE_RESOURCE, - rustc_attr::DEFAULT_LOCALE_RESOURCE, + rustc_attr_parsing::DEFAULT_LOCALE_RESOURCE, rustc_borrowck::DEFAULT_LOCALE_RESOURCE, rustc_builtin_macros::DEFAULT_LOCALE_RESOURCE, rustc_codegen_ssa::DEFAULT_LOCALE_RESOURCE, diff --git a/compiler/rustc_expand/Cargo.toml b/compiler/rustc_expand/Cargo.toml index ce014364b0d..eb93972387d 100644 --- a/compiler/rustc_expand/Cargo.toml +++ b/compiler/rustc_expand/Cargo.toml @@ -12,7 +12,7 @@ doctest = false rustc_ast = { path = "../rustc_ast" } rustc_ast_passes = { path = "../rustc_ast_passes" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_feature = { path = "../rustc_feature" } diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index 9f2765718b5..82d4847e27a 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -10,7 +10,7 @@ use rustc_ast::token::Nonterminal; use rustc_ast::tokenstream::TokenStream; use rustc_ast::visit::{AssocCtxt, Visitor}; use rustc_ast::{self as ast, AttrVec, Attribute, HasAttrs, Item, NodeId, PatKind}; -use rustc_attr::{self as attr, Deprecation, Stability}; +use rustc_attr_parsing::{self as attr, Deprecation, Stability}; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::sync::{self, Lrc}; use rustc_errors::{DiagCtxtHandle, ErrorGuaranteed, PResult}; @@ -848,7 +848,7 @@ impl SyntaxExtension { is_local: bool, ) -> SyntaxExtension { let allow_internal_unstable = - rustc_attr::allow_internal_unstable(sess, attrs).collect::>(); + rustc_attr_parsing::allow_internal_unstable(sess, attrs).collect::>(); let allow_internal_unsafe = ast::attr::contains_name(attrs, sym::allow_internal_unsafe); let local_inner_macros = ast::attr::find_by_name(attrs, sym::macro_export) diff --git a/compiler/rustc_expand/src/config.rs b/compiler/rustc_expand/src/config.rs index 12298d43b89..8e500f538a7 100644 --- a/compiler/rustc_expand/src/config.rs +++ b/compiler/rustc_expand/src/config.rs @@ -8,7 +8,7 @@ use rustc_ast::tokenstream::{ use rustc_ast::{ self as ast, AttrStyle, Attribute, HasAttrs, HasTokens, MetaItem, MetaItemInner, NodeId, }; -use rustc_attr as attr; +use rustc_attr_parsing as attr; use rustc_data_structures::flat_map_in_place::FlatMapInPlace; use rustc_feature::{ ACCEPTED_LANG_FEATURES, AttributeSafety, EnabledLangFeature, EnabledLibFeature, Features, diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs index 690e080fbfc..575108a548f 100644 --- a/compiler/rustc_expand/src/expand.rs +++ b/compiler/rustc_expand/src/expand.rs @@ -1913,7 +1913,7 @@ impl<'a, 'b> InvocationCollector<'a, 'b> { self.cx.current_expansion.lint_node_id, BuiltinLintDiag::UnusedDocComment(attr.span), ); - } else if rustc_attr::is_builtin_attr(attr) { + } else if rustc_attr_parsing::is_builtin_attr(attr) { let attr_name = attr.ident().unwrap().name; // `#[cfg]` and `#[cfg_attr]` are special - they are // eagerly evaluated. diff --git a/compiler/rustc_expand/src/mbe/macro_rules.rs b/compiler/rustc_expand/src/mbe/macro_rules.rs index c666078fa3b..ae8e24007bd 100644 --- a/compiler/rustc_expand/src/mbe/macro_rules.rs +++ b/compiler/rustc_expand/src/mbe/macro_rules.rs @@ -10,7 +10,7 @@ use rustc_ast::token::{self, Delimiter, NonterminalKind, Token, TokenKind}; use rustc_ast::tokenstream::{DelimSpan, TokenStream}; use rustc_ast::{self as ast, DUMMY_NODE_ID, NodeId}; use rustc_ast_pretty::pprust; -use rustc_attr::{self as attr, TransparencyError}; +use rustc_attr_parsing::{self as attr, TransparencyError}; use rustc_data_structures::fx::{FxHashMap, FxIndexMap}; use rustc_errors::{Applicability, ErrorGuaranteed}; use rustc_feature::Features; diff --git a/compiler/rustc_hir_analysis/Cargo.toml b/compiler/rustc_hir_analysis/Cargo.toml index 581ef2272d1..196d7d99e93 100644 --- a/compiler/rustc_hir_analysis/Cargo.toml +++ b/compiler/rustc_hir_analysis/Cargo.toml @@ -13,7 +13,7 @@ itertools = "0.12" rustc_abi = { path = "../rustc_abi" } rustc_arena = { path = "../rustc_arena" } rustc_ast = { path = "../rustc_ast" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_feature = { path = "../rustc_feature" } diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index 8ff94fa566d..5548a6a6ef7 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -31,7 +31,7 @@ use rustc_trait_selection::traits::outlives_bounds::InferCtxtExt as _; use rustc_type_ir::fold::TypeFoldable; use tracing::{debug, instrument}; use ty::TypingMode; -use {rustc_attr as attr, rustc_hir as hir}; +use {rustc_attr_parsing as attr, rustc_hir as hir}; use super::compare_impl_item::check_type_bounds; use super::*; diff --git a/compiler/rustc_hir_typeck/Cargo.toml b/compiler/rustc_hir_typeck/Cargo.toml index 8ddbb4b3397..1f5acaa58a9 100644 --- a/compiler/rustc_hir_typeck/Cargo.toml +++ b/compiler/rustc_hir_typeck/Cargo.toml @@ -9,7 +9,7 @@ itertools = "0.12" rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } rustc_ast_ir = { path = "../rustc_ast_ir" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index 6b1a288510a..caddfc12540 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -8,7 +8,7 @@ use std::borrow::Cow; use hir::Expr; use rustc_ast::ast::Mutability; -use rustc_attr::parse_confusables; +use rustc_attr_parsing::parse_confusables; use rustc_data_structures::fx::{FxIndexMap, FxIndexSet}; use rustc_data_structures::sorted_map::SortedMap; use rustc_data_structures::unord::UnordSet; diff --git a/compiler/rustc_interface/Cargo.toml b/compiler/rustc_interface/Cargo.toml index 7a2ba07ce87..dcb9c5d22d6 100644 --- a/compiler/rustc_interface/Cargo.toml +++ b/compiler/rustc_interface/Cargo.toml @@ -11,7 +11,7 @@ rustc_ast = { path = "../rustc_ast" } rustc_ast_lowering = { path = "../rustc_ast_lowering" } rustc_ast_passes = { path = "../rustc_ast_passes" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_borrowck = { path = "../rustc_borrowck" } rustc_builtin_macros = { path = "../rustc_builtin_macros" } rustc_codegen_llvm = { path = "../rustc_codegen_llvm", optional = true } diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs index 2af25bfd3aa..54fbb743b93 100644 --- a/compiler/rustc_interface/src/util.rs +++ b/compiler/rustc_interface/src/util.rs @@ -453,7 +453,7 @@ pub fn build_output_filenames(attrs: &[ast::Attribute], sess: &Session) -> Outpu .opts .crate_name .clone() - .or_else(|| rustc_attr::find_crate_name(attrs).map(|n| n.to_string())); + .or_else(|| rustc_attr_parsing::find_crate_name(attrs).map(|n| n.to_string())); match sess.io.output_file { None => { diff --git a/compiler/rustc_lint/Cargo.toml b/compiler/rustc_lint/Cargo.toml index ec5f0f06c59..cc5a9029633 100644 --- a/compiler/rustc_lint/Cargo.toml +++ b/compiler/rustc_lint/Cargo.toml @@ -8,7 +8,7 @@ edition = "2021" rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_feature = { path = "../rustc_feature" } diff --git a/compiler/rustc_lint/src/nonstandard_style.rs b/compiler/rustc_lint/src/nonstandard_style.rs index 7d1c8139518..e315307cd45 100644 --- a/compiler/rustc_lint/src/nonstandard_style.rs +++ b/compiler/rustc_lint/src/nonstandard_style.rs @@ -8,7 +8,7 @@ use rustc_session::{declare_lint, declare_lint_pass}; use rustc_span::def_id::LocalDefId; use rustc_span::symbol::{Ident, sym}; use rustc_span::{BytePos, Span}; -use {rustc_ast as ast, rustc_attr as attr, rustc_hir as hir}; +use {rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir}; use crate::lints::{ NonCamelCaseType, NonCamelCaseTypeSub, NonSnakeCaseDiag, NonSnakeCaseDiagSub, diff --git a/compiler/rustc_lint/src/types/literal.rs b/compiler/rustc_lint/src/types/literal.rs index dca42fea57d..83942918e3b 100644 --- a/compiler/rustc_lint/src/types/literal.rs +++ b/compiler/rustc_lint/src/types/literal.rs @@ -3,7 +3,7 @@ use rustc_abi::{Integer, Size}; use rustc_middle::ty::Ty; use rustc_middle::ty::layout::IntegerExt; use rustc_middle::{bug, ty}; -use {rustc_ast as ast, rustc_attr as attr, rustc_hir as hir}; +use {rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir}; use crate::LateContext; use crate::context::LintContext; diff --git a/compiler/rustc_metadata/Cargo.toml b/compiler/rustc_metadata/Cargo.toml index 12519be9870..0b9fdbbd3da 100644 --- a/compiler/rustc_metadata/Cargo.toml +++ b/compiler/rustc_metadata/Cargo.toml @@ -11,7 +11,7 @@ libloading = "0.8.0" odht = { version = "0.3.1", features = ["nightly"] } rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_expand = { path = "../rustc_expand" } diff --git a/compiler/rustc_metadata/src/native_libs.rs b/compiler/rustc_metadata/src/native_libs.rs index 8bd2281981b..fe3bdb3a7b9 100644 --- a/compiler/rustc_metadata/src/native_libs.rs +++ b/compiler/rustc_metadata/src/native_libs.rs @@ -3,7 +3,7 @@ use std::path::{Path, PathBuf}; use rustc_abi::ExternAbi; use rustc_ast::CRATE_NODE_ID; -use rustc_attr as attr; +use rustc_attr_parsing as attr; use rustc_data_structures::fx::FxHashSet; use rustc_middle::query::LocalCrate; use rustc_middle::ty::{self, List, Ty, TyCtxt}; diff --git a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs index 3077312ccf9..f8c743d4f27 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs @@ -1,7 +1,7 @@ use std::any::Any; use std::mem; -use rustc_attr::Deprecation; +use rustc_attr_parsing::Deprecation; use rustc_data_structures::sync::Lrc; use rustc_hir::def::{CtorKind, DefKind, Res}; use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LOCAL_CRATE}; diff --git a/compiler/rustc_metadata/src/rmeta/mod.rs b/compiler/rustc_metadata/src/rmeta/mod.rs index fa843a10adf..f1872807aef 100644 --- a/compiler/rustc_metadata/src/rmeta/mod.rs +++ b/compiler/rustc_metadata/src/rmeta/mod.rs @@ -40,7 +40,7 @@ use rustc_span::symbol::{Ident, Symbol}; use rustc_span::{self, ExpnData, ExpnHash, ExpnId, Span}; use rustc_target::spec::{PanicStrategy, TargetTuple}; use table::TableBuilder; -use {rustc_ast as ast, rustc_attr as attr, rustc_hir as hir}; +use {rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir}; use crate::creader::CrateMetadataRef; diff --git a/compiler/rustc_middle/Cargo.toml b/compiler/rustc_middle/Cargo.toml index 3bda3a4aa63..e64500f812a 100644 --- a/compiler/rustc_middle/Cargo.toml +++ b/compiler/rustc_middle/Cargo.toml @@ -17,7 +17,7 @@ rustc_apfloat = "0.2.0" rustc_arena = { path = "../rustc_arena" } rustc_ast = { path = "../rustc_ast" } rustc_ast_ir = { path = "../rustc_ast_ir" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_error_messages = { path = "../rustc_error_messages" } # Used for intra-doc links rustc_errors = { path = "../rustc_errors" } diff --git a/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs b/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs index 44428471a5f..509063c40d7 100644 --- a/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs +++ b/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs @@ -1,5 +1,5 @@ use rustc_abi::Align; -use rustc_attr::{InlineAttr, InstructionSetAttr, OptimizeAttr}; +use rustc_attr_parsing::{InlineAttr, InstructionSetAttr, OptimizeAttr}; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; use rustc_span::symbol::Symbol; use rustc_target::spec::SanitizerSet; diff --git a/compiler/rustc_middle/src/middle/stability.rs b/compiler/rustc_middle/src/middle/stability.rs index eda53ce2e9f..ece561c7493 100644 --- a/compiler/rustc_middle/src/middle/stability.rs +++ b/compiler/rustc_middle/src/middle/stability.rs @@ -4,7 +4,7 @@ use std::num::NonZero; use rustc_ast::NodeId; -use rustc_attr::{ +use rustc_attr_parsing::{ self as attr, ConstStability, DefaultBodyStability, DeprecatedSince, Deprecation, Stability, }; use rustc_data_structures::unord::UnordMap; diff --git a/compiler/rustc_middle/src/mir/mono.rs b/compiler/rustc_middle/src/mir/mono.rs index 266dc7ad2b3..dcb680c283c 100644 --- a/compiler/rustc_middle/src/mir/mono.rs +++ b/compiler/rustc_middle/src/mir/mono.rs @@ -1,7 +1,7 @@ use std::fmt; use std::hash::Hash; -use rustc_attr::InlineAttr; +use rustc_attr_parsing::InlineAttr; use rustc_data_structures::base_n::{BaseNString, CASE_INSENSITIVE, ToBaseN}; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::fx::FxIndexMap; diff --git a/compiler/rustc_middle/src/query/erase.rs b/compiler/rustc_middle/src/query/erase.rs index 013847f0b2d..9afcf9466b6 100644 --- a/compiler/rustc_middle/src/query/erase.rs +++ b/compiler/rustc_middle/src/query/erase.rs @@ -239,9 +239,9 @@ trivial! { bool, Option<(rustc_span::def_id::DefId, rustc_session::config::EntryFnType)>, Option, - Option, - Option, - Option, + Option, + Option, + Option, Option, Option, Option, @@ -264,10 +264,10 @@ trivial! { Result, rustc_abi::ReprOptions, rustc_ast::expand::allocator::AllocatorKind, - rustc_attr::ConstStability, - rustc_attr::DefaultBodyStability, - rustc_attr::Deprecation, - rustc_attr::Stability, + rustc_attr_parsing::ConstStability, + rustc_attr_parsing::DefaultBodyStability, + rustc_attr_parsing::Deprecation, + rustc_attr_parsing::Stability, rustc_data_structures::svh::Svh, rustc_errors::ErrorGuaranteed, rustc_hir::Constness, diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index 906a47713f4..9475e629683 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -44,7 +44,7 @@ use rustc_span::source_map::Spanned; use rustc_span::symbol::Symbol; use rustc_span::{DUMMY_SP, Span}; use rustc_target::spec::PanicStrategy; -use {rustc_abi as abi, rustc_ast as ast, rustc_attr as attr, rustc_hir as hir}; +use {rustc_abi as abi, rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir}; use crate::infer::canonical::{self, Canonical}; use crate::lint::LintExpectation; diff --git a/compiler/rustc_middle/src/ty/instance.rs b/compiler/rustc_middle/src/ty/instance.rs index 0ba187bf105..49b5588e261 100644 --- a/compiler/rustc_middle/src/ty/instance.rs +++ b/compiler/rustc_middle/src/ty/instance.rs @@ -202,7 +202,7 @@ impl<'tcx> Instance<'tcx> { if !tcx.sess.opts.share_generics() // However, if the def_id is marked inline(never), then it's fine to just reuse the // upstream monomorphization. - && tcx.codegen_fn_attrs(self.def_id()).inline != rustc_attr::InlineAttr::Never + && tcx.codegen_fn_attrs(self.def_id()).inline != rustc_attr_parsing::InlineAttr::Never { return None; } diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index cf8b6b5901a..061b4e806b2 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -52,7 +52,7 @@ pub use rustc_type_ir::relate::VarianceDiagInfo; pub use rustc_type_ir::*; use tracing::{debug, instrument}; pub use vtable::*; -use {rustc_ast as ast, rustc_attr as attr, rustc_hir as hir}; +use {rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir}; pub use self::closure::{ BorrowKind, CAPTURE_STRUCT_LOCAL, CaptureInfo, CapturedPlace, ClosureTypeInfo, diff --git a/compiler/rustc_middle/src/ty/parameterized.rs b/compiler/rustc_middle/src/ty/parameterized.rs index 348f25c8f90..59f2555be95 100644 --- a/compiler/rustc_middle/src/ty/parameterized.rs +++ b/compiler/rustc_middle/src/ty/parameterized.rs @@ -80,10 +80,10 @@ trivially_parameterized_over_tcx! { rustc_ast::Attribute, rustc_ast::DelimArgs, rustc_ast::expand::StrippedCfgItem, - rustc_attr::ConstStability, - rustc_attr::DefaultBodyStability, - rustc_attr::Deprecation, - rustc_attr::Stability, + rustc_attr_parsing::ConstStability, + rustc_attr_parsing::DefaultBodyStability, + rustc_attr_parsing::Deprecation, + rustc_attr_parsing::Stability, rustc_hir::Constness, rustc_hir::Defaultness, rustc_hir::Safety, diff --git a/compiler/rustc_mir_transform/Cargo.toml b/compiler/rustc_mir_transform/Cargo.toml index 4b648d21084..2f233f787f0 100644 --- a/compiler/rustc_mir_transform/Cargo.toml +++ b/compiler/rustc_mir_transform/Cargo.toml @@ -10,7 +10,7 @@ itertools = "0.12" rustc_abi = { path = "../rustc_abi" } rustc_arena = { path = "../rustc_arena" } rustc_ast = { path = "../rustc_ast" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_const_eval = { path = "../rustc_const_eval" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } diff --git a/compiler/rustc_mir_transform/src/cross_crate_inline.rs b/compiler/rustc_mir_transform/src/cross_crate_inline.rs index 589be81558c..e1f1dd83f0d 100644 --- a/compiler/rustc_mir_transform/src/cross_crate_inline.rs +++ b/compiler/rustc_mir_transform/src/cross_crate_inline.rs @@ -1,4 +1,4 @@ -use rustc_attr::InlineAttr; +use rustc_attr_parsing::InlineAttr; use rustc_hir::def::DefKind; use rustc_hir::def_id::LocalDefId; use rustc_middle::mir::visit::Visitor; diff --git a/compiler/rustc_mir_transform/src/inline.rs b/compiler/rustc_mir_transform/src/inline.rs index 79c38b50459..f0acbaf56b6 100644 --- a/compiler/rustc_mir_transform/src/inline.rs +++ b/compiler/rustc_mir_transform/src/inline.rs @@ -4,7 +4,7 @@ use std::iter; use std::ops::{Range, RangeFrom}; use rustc_abi::{ExternAbi, FieldIdx}; -use rustc_attr::InlineAttr; +use rustc_attr_parsing::InlineAttr; use rustc_hir::def::DefKind; use rustc_hir::def_id::DefId; use rustc_index::Idx; diff --git a/compiler/rustc_monomorphize/Cargo.toml b/compiler/rustc_monomorphize/Cargo.toml index e18441ea7fc..9bdaeb015cd 100644 --- a/compiler/rustc_monomorphize/Cargo.toml +++ b/compiler/rustc_monomorphize/Cargo.toml @@ -6,7 +6,7 @@ edition = "2021" [dependencies] # tidy-alphabetical-start rustc_abi = { path = "../rustc_abi" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } diff --git a/compiler/rustc_monomorphize/src/partitioning.rs b/compiler/rustc_monomorphize/src/partitioning.rs index dabce72650a..33e1065f051 100644 --- a/compiler/rustc_monomorphize/src/partitioning.rs +++ b/compiler/rustc_monomorphize/src/partitioning.rs @@ -833,7 +833,8 @@ fn mono_item_visibility<'tcx>( return if is_generic && (always_export_generics || (can_export_generics - && tcx.codegen_fn_attrs(def_id).inline == rustc_attr::InlineAttr::Never)) + && tcx.codegen_fn_attrs(def_id).inline + == rustc_attr_parsing::InlineAttr::Never)) { // If it is an upstream monomorphization and we export generics, we must make // it available to downstream crates. @@ -847,7 +848,7 @@ fn mono_item_visibility<'tcx>( if is_generic { if always_export_generics || (can_export_generics - && tcx.codegen_fn_attrs(def_id).inline == rustc_attr::InlineAttr::Never) + && tcx.codegen_fn_attrs(def_id).inline == rustc_attr_parsing::InlineAttr::Never) { if tcx.is_unreachable_local_definition(def_id) { // This instance cannot be used from another crate. diff --git a/compiler/rustc_passes/Cargo.toml b/compiler/rustc_passes/Cargo.toml index ed5991459ac..497eb373c45 100644 --- a/compiler/rustc_passes/Cargo.toml +++ b/compiler/rustc_passes/Cargo.toml @@ -8,7 +8,7 @@ edition = "2021" rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_expand = { path = "../rustc_expand" } diff --git a/compiler/rustc_passes/src/lib_features.rs b/compiler/rustc_passes/src/lib_features.rs index ec9075bbdee..07f7a1c8f2a 100644 --- a/compiler/rustc_passes/src/lib_features.rs +++ b/compiler/rustc_passes/src/lib_features.rs @@ -4,7 +4,7 @@ //! but are not declared in one single location (unlike lang features), which means we need to //! collect them instead. -use rustc_attr::VERSION_PLACEHOLDER; +use rustc_attr_parsing::VERSION_PLACEHOLDER; use rustc_hir::Attribute; use rustc_hir::intravisit::Visitor; use rustc_middle::hir::nested_filter; diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs index 72705b43d6f..96614a7a128 100644 --- a/compiler/rustc_passes/src/stability.rs +++ b/compiler/rustc_passes/src/stability.rs @@ -4,7 +4,7 @@ use std::mem::replace; use std::num::NonZero; -use rustc_attr::{ +use rustc_attr_parsing::{ self as attr, ConstStability, DeprecatedSince, Stability, StabilityLevel, StableSince, UnstableReason, VERSION_PLACEHOLDER, }; diff --git a/compiler/rustc_privacy/Cargo.toml b/compiler/rustc_privacy/Cargo.toml index f998e0ff154..eb48155919f 100644 --- a/compiler/rustc_privacy/Cargo.toml +++ b/compiler/rustc_privacy/Cargo.toml @@ -6,7 +6,7 @@ edition = "2021" [dependencies] # tidy-alphabetical-start rustc_ast = { path = "../rustc_ast" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index 3057f13e3a7..6357efa5bae 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -41,7 +41,7 @@ use rustc_span::Span; use rustc_span::hygiene::Transparency; use rustc_span::symbol::{Ident, kw, sym}; use tracing::debug; -use {rustc_attr as attr, rustc_hir as hir}; +use {rustc_attr_parsing as attr, rustc_hir as hir}; rustc_fluent_macro::fluent_messages! { "../messages.ftl" } diff --git a/compiler/rustc_resolve/Cargo.toml b/compiler/rustc_resolve/Cargo.toml index b71853b871d..309227176d4 100644 --- a/compiler/rustc_resolve/Cargo.toml +++ b/compiler/rustc_resolve/Cargo.toml @@ -10,7 +10,7 @@ pulldown-cmark = { version = "0.11", features = ["html"], default-features = fal rustc_arena = { path = "../rustc_arena" } rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_expand = { path = "../rustc_expand" } diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index e18c7edec30..f82fd6a6f5f 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -12,7 +12,7 @@ use rustc_ast::{ self as ast, AssocItem, AssocItemKind, Block, ForeignItem, ForeignItemKind, Impl, Item, ItemKind, MetaItemKind, NodeId, StmtKind, }; -use rustc_attr as attr; +use rustc_attr_parsing as attr; use rustc_data_structures::sync::Lrc; use rustc_expand::base::ResolverExpand; use rustc_expand::expand::AstFragment; diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index 891bc494d0c..43e260aa264 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -8,7 +8,7 @@ use rustc_ast::attr::AttributeExt; use rustc_ast::expand::StrippedCfgItem; use rustc_ast::{self as ast, Crate, Inline, ItemKind, ModKind, NodeId, attr}; use rustc_ast_pretty::pprust; -use rustc_attr::StabilityLevel; +use rustc_attr_parsing::StabilityLevel; use rustc_data_structures::intern::Interned; use rustc_data_structures::sync::Lrc; use rustc_errors::{Applicability, StashKey}; diff --git a/compiler/rustc_session/src/lib.rs b/compiler/rustc_session/src/lib.rs index 0b4470b2b0f..dcf86d1a408 100644 --- a/compiler/rustc_session/src/lib.rs +++ b/compiler/rustc_session/src/lib.rs @@ -29,9 +29,6 @@ pub mod output; pub use getopts; -mod version; -pub use version::RustcVersion; - rustc_fluent_macro::fluent_messages! { "../messages.ftl" } /// Requirements for a `StableHashingContext` to be used in this crate. diff --git a/compiler/rustc_session/src/version.rs b/compiler/rustc_session/src/version.rs deleted file mode 100644 index 1696eaf902b..00000000000 --- a/compiler/rustc_session/src/version.rs +++ /dev/null @@ -1,29 +0,0 @@ -use std::borrow::Cow; -use std::fmt::{self, Display}; - -use rustc_errors::IntoDiagArg; -use rustc_macros::{Decodable, Encodable, HashStable_Generic, current_rustc_version}; - -#[derive(Encodable, Decodable, Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)] -#[derive(HashStable_Generic)] -pub struct RustcVersion { - pub major: u16, - pub minor: u16, - pub patch: u16, -} - -impl RustcVersion { - pub const CURRENT: Self = current_rustc_version!(); -} - -impl Display for RustcVersion { - fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - write!(formatter, "{}.{}.{}", self.major, self.minor, self.patch) - } -} - -impl IntoDiagArg for RustcVersion { - fn into_diag_arg(self) -> rustc_errors::DiagArgValue { - rustc_errors::DiagArgValue::Str(Cow::Owned(self.to_string())) - } -} diff --git a/compiler/rustc_trait_selection/Cargo.toml b/compiler/rustc_trait_selection/Cargo.toml index e29ed9a4b56..b13a753c4ed 100644 --- a/compiler/rustc_trait_selection/Cargo.toml +++ b/compiler/rustc_trait_selection/Cargo.toml @@ -9,7 +9,7 @@ itertools = "0.12" rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } rustc_ast_ir = { path = "../rustc_ast_ir" } -rustc_attr = { path = "../rustc_attr" } +rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs index dac4a03bf75..d54b8598254 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs @@ -16,7 +16,7 @@ use rustc_session::lint::builtin::UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES; use rustc_span::Span; use rustc_span::symbol::{Symbol, kw, sym}; use tracing::{debug, info}; -use {rustc_attr as attr, rustc_hir as hir}; +use {rustc_attr_parsing as attr, rustc_hir as hir}; use super::{ObligationCauseCode, PredicateObligation}; use crate::error_reporting::TypeErrCtxt; diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index d4dc35b6c9c..0918a90d04b 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -6,7 +6,7 @@ use std::{fmt, iter}; use arrayvec::ArrayVec; use rustc_abi::{ExternAbi, VariantIdx}; -use rustc_attr::{ConstStability, Deprecation, Stability, StableSince}; +use rustc_attr_parsing::{ConstStability, Deprecation, Stability, StableSince}; use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; use rustc_hir::def::{CtorKind, DefKind, Res}; use rustc_hir::def_id::{CrateNum, DefId, LOCAL_CRATE, LocalDefId}; diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs index 7d40f662ed0..136002b8e15 100644 --- a/src/librustdoc/html/format.rs +++ b/src/librustdoc/html/format.rs @@ -15,7 +15,7 @@ use std::iter::{self, once}; use itertools::Itertools; use rustc_abi::ExternAbi; -use rustc_attr::{ConstStability, StabilityLevel, StableSince}; +use rustc_attr_parsing::{ConstStability, StabilityLevel, StableSince}; use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::FxHashSet; use rustc_hir as hir; diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs index e013829e5e0..eb9f39128bc 100644 --- a/src/librustdoc/html/render/mod.rs +++ b/src/librustdoc/html/render/mod.rs @@ -44,14 +44,15 @@ use std::path::PathBuf; use std::{fs, str}; use rinja::Template; -use rustc_attr::{ConstStability, DeprecatedSince, Deprecation, StabilityLevel, StableSince}; +use rustc_attr_parsing::{ + ConstStability, DeprecatedSince, Deprecation, RustcVersion, StabilityLevel, StableSince, +}; use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; use rustc_hir::Mutability; use rustc_hir::def_id::{DefId, DefIdSet}; use rustc_middle::ty::print::PrintTraitRefExt; use rustc_middle::ty::{self, TyCtxt}; -use rustc_session::RustcVersion; use rustc_span::symbol::{Symbol, sym}; use rustc_span::{BytePos, DUMMY_SP, FileName, RealFileName}; use serde::ser::SerializeMap; diff --git a/src/librustdoc/json/conversions.rs b/src/librustdoc/json/conversions.rs index be39984c3da..12f68f60426 100644 --- a/src/librustdoc/json/conversions.rs +++ b/src/librustdoc/json/conversions.rs @@ -6,7 +6,7 @@ use rustc_abi::ExternAbi; use rustc_ast::ast; -use rustc_attr::DeprecatedSince; +use rustc_attr_parsing::DeprecatedSince; use rustc_hir::def::{CtorKind, DefKind}; use rustc_hir::def_id::DefId; use rustc_metadata::rendered_const; @@ -215,8 +215,8 @@ where } } -pub(crate) fn from_deprecation(deprecation: rustc_attr::Deprecation) -> Deprecation { - let rustc_attr::Deprecation { since, note, suggestion: _ } = deprecation; +pub(crate) fn from_deprecation(deprecation: rustc_attr_parsing::Deprecation) -> Deprecation { + let rustc_attr_parsing::Deprecation { since, note, suggestion: _ } = deprecation; let since = match since { DeprecatedSince::RustcVersion(version) => Some(version.to_string()), DeprecatedSince::Future => Some("TBD".to_owned()), diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs index 5d82b8e309a..91e104f49fb 100644 --- a/src/librustdoc/lib.rs +++ b/src/librustdoc/lib.rs @@ -36,7 +36,7 @@ extern crate pulldown_cmark; extern crate rustc_abi; extern crate rustc_ast; extern crate rustc_ast_pretty; -extern crate rustc_attr; +extern crate rustc_attr_parsing; extern crate rustc_data_structures; extern crate rustc_driver; extern crate rustc_errors; diff --git a/src/librustdoc/passes/propagate_stability.rs b/src/librustdoc/passes/propagate_stability.rs index a81b130a218..d924be2edce 100644 --- a/src/librustdoc/passes/propagate_stability.rs +++ b/src/librustdoc/passes/propagate_stability.rs @@ -6,7 +6,7 @@ //! [`core::error`] module is marked as stable since 1.81.0, so we want to show //! [`core::error::Error`] as stable since 1.81.0 as well. -use rustc_attr::{Stability, StabilityLevel}; +use rustc_attr_parsing::{Stability, StabilityLevel}; use rustc_hir::def_id::CRATE_DEF_ID; use crate::clean::{Crate, Item, ItemId, ItemKind}; diff --git a/src/tools/clippy/clippy_lints/src/approx_const.rs b/src/tools/clippy/clippy_lints/src/approx_const.rs index ebd35fd2b27..95c85f250e9 100644 --- a/src/tools/clippy/clippy_lints/src/approx_const.rs +++ b/src/tools/clippy/clippy_lints/src/approx_const.rs @@ -2,9 +2,10 @@ use clippy_config::Conf; use clippy_utils::diagnostics::span_lint_and_help; use clippy_utils::msrvs::{self, Msrv}; use rustc_ast::ast::{FloatTy, LitFloatType, LitKind}; +use rustc_attr_parsing::RustcVersion; use rustc_hir::{Expr, ExprKind}; use rustc_lint::{LateContext, LateLintPass}; -use rustc_session::{RustcVersion, impl_lint_pass}; +use rustc_session::impl_lint_pass; use rustc_span::symbol; use std::f64::consts as f64; diff --git a/src/tools/clippy/clippy_lints/src/booleans.rs b/src/tools/clippy/clippy_lints/src/booleans.rs index 6eef0d42a55..f68a7a89b39 100644 --- a/src/tools/clippy/clippy_lints/src/booleans.rs +++ b/src/tools/clippy/clippy_lints/src/booleans.rs @@ -9,7 +9,8 @@ use rustc_errors::Applicability; use rustc_hir::intravisit::{FnKind, Visitor, walk_expr}; use rustc_hir::{BinOpKind, Body, Expr, ExprKind, FnDecl, UnOp}; use rustc_lint::{LateContext, LateLintPass, Level}; -use rustc_session::{RustcVersion, impl_lint_pass}; +use rustc_attr_parsing::RustcVersion; +use rustc_session::impl_lint_pass; use rustc_span::def_id::LocalDefId; use rustc_span::{Span, sym}; diff --git a/src/tools/clippy/clippy_lints/src/incompatible_msrv.rs b/src/tools/clippy/clippy_lints/src/incompatible_msrv.rs index f3467adacc5..6cee7cfaca2 100644 --- a/src/tools/clippy/clippy_lints/src/incompatible_msrv.rs +++ b/src/tools/clippy/clippy_lints/src/incompatible_msrv.rs @@ -2,12 +2,12 @@ use clippy_config::Conf; use clippy_utils::diagnostics::span_lint; use clippy_utils::is_in_test; use clippy_utils::msrvs::Msrv; -use rustc_attr::{StabilityLevel, StableSince}; +use rustc_attr_parsing::{StabilityLevel, StableSince, RustcVersion}; use rustc_data_structures::fx::FxHashMap; use rustc_hir::{Expr, ExprKind, HirId}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty::TyCtxt; -use rustc_session::{RustcVersion, impl_lint_pass}; +use rustc_session::impl_lint_pass; use rustc_span::def_id::DefId; use rustc_span::{ExpnKind, Span}; diff --git a/src/tools/clippy/clippy_lints/src/lib.rs b/src/tools/clippy/clippy_lints/src/lib.rs index e80cca6e7db..3e8315588cc 100644 --- a/src/tools/clippy/clippy_lints/src/lib.rs +++ b/src/tools/clippy/clippy_lints/src/lib.rs @@ -35,7 +35,7 @@ extern crate rustc_abi; extern crate rustc_arena; extern crate rustc_ast; extern crate rustc_ast_pretty; -extern crate rustc_attr; +extern crate rustc_attr_parsing; extern crate rustc_data_structures; extern crate rustc_driver; extern crate rustc_errors; diff --git a/src/tools/clippy/clippy_lints/src/std_instead_of_core.rs b/src/tools/clippy/clippy_lints/src/std_instead_of_core.rs index 2941b9c3960..82ff13a5aff 100644 --- a/src/tools/clippy/clippy_lints/src/std_instead_of_core.rs +++ b/src/tools/clippy/clippy_lints/src/std_instead_of_core.rs @@ -2,7 +2,7 @@ use clippy_config::Conf; use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::is_from_proc_macro; use clippy_utils::msrvs::Msrv; -use rustc_attr::{StabilityLevel, StableSince}; +use rustc_attr_parsing::{StabilityLevel, StableSince}; use rustc_errors::Applicability; use rustc_hir::def::Res; use rustc_hir::def_id::DefId; diff --git a/src/tools/clippy/clippy_lints/src/utils/internal_lints/lint_without_lint_pass.rs b/src/tools/clippy/clippy_lints/src/utils/internal_lints/lint_without_lint_pass.rs index af38e066559..496343d82c8 100644 --- a/src/tools/clippy/clippy_lints/src/utils/internal_lints/lint_without_lint_pass.rs +++ b/src/tools/clippy/clippy_lints/src/utils/internal_lints/lint_without_lint_pass.rs @@ -222,7 +222,7 @@ fn check_invalid_clippy_version_attribute(cx: &LateContext<'_>, item: &'_ Item<' return; } - if rustc_attr::parse_version(value).is_none() { + if rustc_attr_parsing::parse_version(value).is_none() { span_lint_and_help( cx, INVALID_CLIPPY_VERSION_ATTRIBUTE, diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs index 96139a08c3d..02bbddb413a 100644 --- a/src/tools/clippy/clippy_utils/src/lib.rs +++ b/src/tools/clippy/clippy_utils/src/lib.rs @@ -31,7 +31,7 @@ // (Currently there is no way to opt into sysroot crates without `extern crate`.) extern crate rustc_ast; extern crate rustc_ast_pretty; -extern crate rustc_attr; +extern crate rustc_attr_parsing; extern crate rustc_const_eval; extern crate rustc_data_structures; // The `rustc_driver` crate seems to be required in order to use the `rust_ast` crate. diff --git a/src/tools/clippy/clippy_utils/src/msrvs.rs b/src/tools/clippy/clippy_utils/src/msrvs.rs index 55986acea3d..1e6368fab36 100644 --- a/src/tools/clippy/clippy_utils/src/msrvs.rs +++ b/src/tools/clippy/clippy_utils/src/msrvs.rs @@ -1,6 +1,6 @@ use rustc_ast::attr::AttributeExt; -use rustc_attr::parse_version; -use rustc_session::{RustcVersion, Session}; +use rustc_attr_parsing::{parse_version, RustcVersion}; +use rustc_session::Session; use rustc_span::{Symbol, sym}; use serde::Deserialize; use smallvec::{SmallVec, smallvec}; diff --git a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs index df3f10d6179..104ae154e36 100644 --- a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs +++ b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs @@ -5,7 +5,7 @@ use crate::msrvs::{self, Msrv}; use hir::LangItem; -use rustc_attr::StableSince; +use rustc_attr_parsing::{RustcVersion, StableSince}; use rustc_const_eval::check_consts::ConstCx; use rustc_hir as hir; use rustc_hir::def_id::DefId; @@ -381,14 +381,14 @@ fn check_terminator<'tcx>( fn is_stable_const_fn(tcx: TyCtxt<'_>, def_id: DefId, msrv: &Msrv) -> bool { tcx.is_const_fn(def_id) && tcx.lookup_const_stability(def_id).is_none_or(|const_stab| { - if let rustc_attr::StabilityLevel::Stable { since, .. } = const_stab.level { + if let rustc_attr_parsing::StabilityLevel::Stable { since, .. } = const_stab.level { // Checking MSRV is manually necessary because `rustc` has no such concept. This entire // function could be removed if `rustc` provided a MSRV-aware version of `is_stable_const_fn`. // as a part of an unimplemented MSRV check https://github.com/rust-lang/rust/issues/65262. let const_stab_rust_version = match since { StableSince::Version(version) => version, - StableSince::Current => rustc_session::RustcVersion::CURRENT, + StableSince::Current => RustcVersion::CURRENT, StableSince::Err => return false, }; diff --git a/src/tools/miri/src/lib.rs b/src/tools/miri/src/lib.rs index 85c896563da..e02d51afcef 100644 --- a/src/tools/miri/src/lib.rs +++ b/src/tools/miri/src/lib.rs @@ -58,7 +58,7 @@ extern crate tracing; extern crate rustc_abi; extern crate rustc_apfloat; extern crate rustc_ast; -extern crate rustc_attr; +extern crate rustc_attr_parsing; extern crate rustc_const_eval; extern crate rustc_data_structures; extern crate rustc_errors; diff --git a/src/tools/miri/src/machine.rs b/src/tools/miri/src/machine.rs index ac26feb345c..ad8a7ea1668 100644 --- a/src/tools/miri/src/machine.rs +++ b/src/tools/miri/src/machine.rs @@ -11,7 +11,7 @@ use std::{fmt, process}; use rand::rngs::StdRng; use rand::{Rng, SeedableRng}; use rustc_abi::{Align, ExternAbi, Size}; -use rustc_attr::InlineAttr; +use rustc_attr_parsing::InlineAttr; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; #[allow(unused)] use rustc_data_structures::static_assert_size; -- cgit 1.4.1-3-g733a5 From fe412af4fce43aa5222b8940e068da3a19188e4b Mon Sep 17 00:00:00 2001 From: Zalathar Date: Sun, 15 Dec 2024 00:34:06 +1100 Subject: coverage: Use `is_eligible_for_coverage` to filter unused functions The checks in `is_eligible_for_coverage` include `is_fn_like`, but will also exclude various function-like things that cannot possibly have coverage instrumentation. --- compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index 4f2af732527..c57946cc317 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -271,16 +271,15 @@ fn add_unused_functions(cx: &CodegenCx<'_, '_>) { let usage = prepare_usage_sets(tcx); let is_unused_fn = |def_id: LocalDefId| -> bool { - let def_id = def_id.to_def_id(); - - // To be eligible for "unused function" mappings, a definition must: - // - Be function-like + // Usage sets expect `DefId`, so convert from `LocalDefId`. + let d: DefId = LocalDefId::to_def_id(def_id); + // To be potentially eligible for "unused function" mappings, a definition must: + // - Be eligible for coverage instrumentation // - Not participate directly in codegen (or have lost all its coverage statements) // - Not have any coverage statements inlined into codegenned functions - tcx.def_kind(def_id).is_fn_like() - && (!usage.all_mono_items.contains(&def_id) - || usage.missing_own_coverage.contains(&def_id)) - && !usage.used_via_inlining.contains(&def_id) + tcx.is_eligible_for_coverage(def_id) + && (!usage.all_mono_items.contains(&d) || usage.missing_own_coverage.contains(&d)) + && !usage.used_via_inlining.contains(&d) }; // Scan for unused functions that were instrumented for coverage. -- cgit 1.4.1-3-g733a5 From 154fae1e8d825955ce83ae4c7d21a03db406e56c Mon Sep 17 00:00:00 2001 From: Zalathar Date: Fri, 13 Dec 2024 22:40:45 +1100 Subject: coverage: Build the global file table on the fly --- .../rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 58 ++++++++++------------ .../src/coverageinfo/mapgen/covfun.rs | 4 +- tests/coverage/unused_mod.cov-map | 8 +-- 3 files changed, 33 insertions(+), 37 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index c57946cc317..0c7ad300a8b 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -1,6 +1,6 @@ use std::iter; -use itertools::Itertools as _; +use itertools::Itertools; use rustc_abi::Align; use rustc_codegen_ssa::traits::{ BaseTypeCodegenMethods, ConstCodegenMethods, StaticCodegenMethods, @@ -8,8 +8,8 @@ use rustc_codegen_ssa::traits::{ use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_index::IndexVec; +use rustc_middle::mir; use rustc_middle::ty::{self, TyCtxt}; -use rustc_middle::{bug, mir}; use rustc_session::RemapFileNameExt; use rustc_session::config::RemapPathScopeComponents; use rustc_span::def_id::DefIdSet; @@ -67,25 +67,21 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { return; } - let all_file_names = function_coverage_map - .iter() - .map(|(_, fn_cov)| fn_cov.function_coverage_info.body_span) - .map(|span| span_file_name(tcx, span)); - let global_file_table = GlobalFileTable::new(all_file_names); - - // Encode all filenames referenced by coverage mappings in this CGU. - let filenames_buffer = global_file_table.make_filenames_buffer(tcx); - // The `llvm-cov` tool uses this hash to associate each covfun record with - // its corresponding filenames table, since the final binary will typically - // contain multiple covmap records from different compilation units. - let filenames_hash = llvm_cov::hash_bytes(&filenames_buffer); - - let mut unused_function_names = Vec::new(); + // The order of entries in this global file table needs to be deterministic, + // and ideally should also be independent of the details of stable-hashing, + // because coverage tests snapshots (`.cov-map`) can observe the order and + // would need to be re-blessed if it changes. As long as those requirements + // are satisfied, the order can be arbitrary. + let mut global_file_table = GlobalFileTable::new(); let covfun_records = function_coverage_map .into_iter() + // Sort by symbol name, so that the global file table is built in an + // order that doesn't depend on the stable-hash-based order in which + // instances were visited during codegen. + .sorted_by_cached_key(|&(instance, _)| tcx.symbol_name(instance).name) .filter_map(|(instance, function_coverage)| { - prepare_covfun_record(tcx, &global_file_table, instance, &function_coverage) + prepare_covfun_record(tcx, &mut global_file_table, instance, &function_coverage) }) .collect::>(); @@ -98,6 +94,15 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { return; } + // Encode all filenames referenced by coverage mappings in this CGU. + let filenames_buffer = global_file_table.make_filenames_buffer(tcx); + // The `llvm-cov` tool uses this hash to associate each covfun record with + // its corresponding filenames table, since the final binary will typically + // contain multiple covmap records from different compilation units. + let filenames_hash = llvm_cov::hash_bytes(&filenames_buffer); + + let mut unused_function_names = vec![]; + for covfun in &covfun_records { unused_function_names.extend(covfun.mangled_function_name_if_unused()); @@ -137,22 +142,13 @@ struct GlobalFileTable { } impl GlobalFileTable { - fn new(all_file_names: impl IntoIterator) -> Self { - // Collect all of the filenames into a set. Filenames usually come in - // contiguous runs, so we can dedup adjacent ones to save work. - let mut raw_file_table = all_file_names.into_iter().dedup().collect::>(); - - // Sort the file table by its actual string values, not the arbitrary - // ordering of its symbols. - raw_file_table.sort_unstable_by(|a, b| a.as_str().cmp(b.as_str())); - - Self { raw_file_table } + fn new() -> Self { + Self { raw_file_table: FxIndexSet::default() } } - fn global_file_id_for_file_name(&self, file_name: Symbol) -> GlobalFileId { - let raw_id = self.raw_file_table.get_index_of(&file_name).unwrap_or_else(|| { - bug!("file name not found in prepared global file table: {file_name}"); - }); + fn global_file_id_for_file_name(&mut self, file_name: Symbol) -> GlobalFileId { + // Ensure the given file has a table entry, and get its index. + let (raw_id, _) = self.raw_file_table.insert_full(file_name); // The raw file table doesn't include an entry for the working dir // (which has ID 0), so add 1 to get the correct ID. GlobalFileId::from_usize(raw_id + 1) diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index 33e7a0f2f20..6a151d3c2b0 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -45,7 +45,7 @@ impl<'tcx> CovfunRecord<'tcx> { pub(crate) fn prepare_covfun_record<'tcx>( tcx: TyCtxt<'tcx>, - global_file_table: &GlobalFileTable, + global_file_table: &mut GlobalFileTable, instance: Instance<'tcx>, function_coverage: &FunctionCoverage<'tcx>, ) -> Option> { @@ -75,7 +75,7 @@ pub(crate) fn prepare_covfun_record<'tcx>( /// Populates the mapping region tables in the current function's covfun record. fn fill_region_tables<'tcx>( tcx: TyCtxt<'tcx>, - global_file_table: &GlobalFileTable, + global_file_table: &mut GlobalFileTable, function_coverage: &FunctionCoverage<'tcx>, covfun: &mut CovfunRecord<'tcx>, ) { diff --git a/tests/coverage/unused_mod.cov-map b/tests/coverage/unused_mod.cov-map index af10906fa3c..5e8b69fcdba 100644 --- a/tests/coverage/unused_mod.cov-map +++ b/tests/coverage/unused_mod.cov-map @@ -1,16 +1,16 @@ Function name: unused_mod::main -Raw bytes (9): 0x[01, 02, 00, 01, 01, 04, 01, 02, 02] +Raw bytes (9): 0x[01, 01, 00, 01, 01, 04, 01, 02, 02] Number of files: 1 -- file 0 => global file 2 +- file 0 => global file 1 Number of expressions: 0 Number of file 0 mappings: 1 - Code(Counter(0)) at (prev + 4, 1) to (start + 2, 2) Highest counter ID seen: c0 Function name: unused_mod::unused_module::never_called_function (unused) -Raw bytes (9): 0x[01, 01, 00, 01, 00, 02, 01, 02, 02] +Raw bytes (9): 0x[01, 02, 00, 01, 00, 02, 01, 02, 02] Number of files: 1 -- file 0 => global file 1 +- file 0 => global file 2 Number of expressions: 0 Number of file 0 mappings: 1 - Code(Zero) at (prev + 2, 1) to (start + 2, 2) -- cgit 1.4.1-3-g733a5 From 252276a53d05f49523e6eac992b5f49e9815db0c Mon Sep 17 00:00:00 2001 From: Zalathar Date: Thu, 12 Dec 2024 21:36:20 +1100 Subject: coverage: Pull expression conversion out of `map_data.rs` --- .../src/coverageinfo/map_data.rs | 32 +-------------- .../src/coverageinfo/mapgen/covfun.rs | 45 +++++++++++++++++++++- 2 files changed, 44 insertions(+), 33 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs index c5d1ebdfe7c..5b05f0867b9 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs @@ -1,11 +1,7 @@ -use rustc_data_structures::captures::Captures; use rustc_middle::mir::coverage::{ - CovTerm, CoverageIdsInfo, Expression, FunctionCoverageInfo, Mapping, MappingKind, Op, - SourceRegion, + CovTerm, CoverageIdsInfo, FunctionCoverageInfo, Mapping, MappingKind, SourceRegion, }; -use crate::coverageinfo::ffi::{Counter, CounterExpression, ExprKind}; - pub(crate) struct FunctionCoverage<'tcx> { pub(crate) function_coverage_info: &'tcx FunctionCoverageInfo, /// If `None`, the corresponding function is unused. @@ -35,28 +31,6 @@ impl<'tcx> FunctionCoverage<'tcx> { if self.is_used() { self.function_coverage_info.function_source_hash } else { 0 } } - /// Convert this function's coverage expression data into a form that can be - /// passed through FFI to LLVM. - pub(crate) fn counter_expressions( - &self, - ) -> impl Iterator + ExactSizeIterator + Captures<'_> { - // We know that LLVM will optimize out any unused expressions before - // producing the final coverage map, so there's no need to do the same - // thing on the Rust side unless we're confident we can do much better. - // (See `CounterExpressionsMinimizer` in `CoverageMappingWriter.cpp`.) - - self.function_coverage_info.expressions.iter().map(move |&Expression { lhs, op, rhs }| { - CounterExpression { - lhs: self.counter_for_term(lhs), - kind: match op { - Op::Add => ExprKind::Add, - Op::Subtract => ExprKind::Subtract, - }, - rhs: self.counter_for_term(rhs), - } - }) - } - /// Converts this function's coverage mappings into an intermediate form /// that will be used by `mapgen` when preparing for FFI. pub(crate) fn counter_regions( @@ -70,10 +44,6 @@ impl<'tcx> FunctionCoverage<'tcx> { }) } - fn counter_for_term(&self, term: CovTerm) -> Counter { - if self.is_zero_term(term) { Counter::ZERO } else { Counter::from_term(term) } - } - fn is_zero_term(&self, term: CovTerm) -> bool { match self.ids_info { Some(ids_info) => ids_info.is_zero_term(term), diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index 6a151d3c2b0..e71c15e7856 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -11,7 +11,9 @@ use rustc_codegen_ssa::traits::{ BaseTypeCodegenMethods, ConstCodegenMethods, StaticCodegenMethods, }; use rustc_middle::bug; -use rustc_middle::mir::coverage::MappingKind; +use rustc_middle::mir::coverage::{ + CoverageIdsInfo, Expression, FunctionCoverageInfo, MappingKind, Op, +}; use rustc_middle::ty::{Instance, TyCtxt}; use rustc_target::spec::HasTargetSpec; use tracing::debug; @@ -49,12 +51,17 @@ pub(crate) fn prepare_covfun_record<'tcx>( instance: Instance<'tcx>, function_coverage: &FunctionCoverage<'tcx>, ) -> Option> { + let fn_cov_info = tcx.instance_mir(instance.def).function_coverage_info.as_deref()?; + let ids_info = tcx.coverage_ids_info(instance.def); + + let expressions = prepare_expressions(fn_cov_info, ids_info, function_coverage.is_used()); + let mut covfun = CovfunRecord { mangled_function_name: tcx.symbol_name(instance).name, source_hash: function_coverage.source_hash(), is_used: function_coverage.is_used(), virtual_file_mapping: VirtualFileMapping::default(), - expressions: function_coverage.counter_expressions().collect::>(), + expressions, regions: ffi::Regions::default(), }; @@ -72,6 +79,40 @@ pub(crate) fn prepare_covfun_record<'tcx>( Some(covfun) } +/// Convert the function's coverage-counter expressions into a form suitable for FFI. +fn prepare_expressions( + fn_cov_info: &FunctionCoverageInfo, + ids_info: &CoverageIdsInfo, + is_used: bool, +) -> Vec { + // If any counters or expressions were removed by MIR opts, replace their + // terms with zero. + let counter_for_term = |term| { + if !is_used || ids_info.is_zero_term(term) { + ffi::Counter::ZERO + } else { + ffi::Counter::from_term(term) + } + }; + + // We know that LLVM will optimize out any unused expressions before + // producing the final coverage map, so there's no need to do the same + // thing on the Rust side unless we're confident we can do much better. + // (See `CounterExpressionsMinimizer` in `CoverageMappingWriter.cpp`.) + fn_cov_info + .expressions + .iter() + .map(move |&Expression { lhs, op, rhs }| ffi::CounterExpression { + lhs: counter_for_term(lhs), + kind: match op { + Op::Add => ffi::ExprKind::Add, + Op::Subtract => ffi::ExprKind::Subtract, + }, + rhs: counter_for_term(rhs), + }) + .collect::>() +} + /// Populates the mapping region tables in the current function's covfun record. fn fill_region_tables<'tcx>( tcx: TyCtxt<'tcx>, -- cgit 1.4.1-3-g733a5 From 527f8127bbde4d189ee292dee0d6070550ec0ba6 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Thu, 12 Dec 2024 21:46:34 +1100 Subject: coverage: Pull region conversion out of `map_data.rs` --- .../src/coverageinfo/map_data.rs | 25 +-------------------- .../src/coverageinfo/mapgen/covfun.rs | 26 +++++++++++----------- 2 files changed, 14 insertions(+), 37 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs index 5b05f0867b9..e1b2a1b87bb 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs @@ -1,6 +1,4 @@ -use rustc_middle::mir::coverage::{ - CovTerm, CoverageIdsInfo, FunctionCoverageInfo, Mapping, MappingKind, SourceRegion, -}; +use rustc_middle::mir::coverage::{CoverageIdsInfo, FunctionCoverageInfo}; pub(crate) struct FunctionCoverage<'tcx> { pub(crate) function_coverage_info: &'tcx FunctionCoverageInfo, @@ -30,25 +28,4 @@ impl<'tcx> FunctionCoverage<'tcx> { pub(crate) fn source_hash(&self) -> u64 { if self.is_used() { self.function_coverage_info.function_source_hash } else { 0 } } - - /// Converts this function's coverage mappings into an intermediate form - /// that will be used by `mapgen` when preparing for FFI. - pub(crate) fn counter_regions( - &self, - ) -> impl Iterator + ExactSizeIterator { - self.function_coverage_info.mappings.iter().map(move |mapping| { - let Mapping { kind, source_region } = mapping; - let kind = - kind.map_terms(|term| if self.is_zero_term(term) { CovTerm::Zero } else { term }); - (kind, source_region) - }) - } - - fn is_zero_term(&self, term: CovTerm) -> bool { - match self.ids_info { - Some(ids_info) => ids_info.is_zero_term(term), - // This function is unused, so all coverage counters/expressions are zero. - None => true, - } - } } diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index e71c15e7856..fa0af8415e7 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -12,7 +12,7 @@ use rustc_codegen_ssa::traits::{ }; use rustc_middle::bug; use rustc_middle::mir::coverage::{ - CoverageIdsInfo, Expression, FunctionCoverageInfo, MappingKind, Op, + CovTerm, CoverageIdsInfo, Expression, FunctionCoverageInfo, Mapping, MappingKind, Op, }; use rustc_middle::ty::{Instance, TyCtxt}; use rustc_target::spec::HasTargetSpec; @@ -65,7 +65,7 @@ pub(crate) fn prepare_covfun_record<'tcx>( regions: ffi::Regions::default(), }; - fill_region_tables(tcx, global_file_table, function_coverage, &mut covfun); + fill_region_tables(tcx, global_file_table, fn_cov_info, ids_info, &mut covfun); if covfun.regions.has_no_regions() { if covfun.is_used { @@ -117,16 +117,12 @@ fn prepare_expressions( fn fill_region_tables<'tcx>( tcx: TyCtxt<'tcx>, global_file_table: &mut GlobalFileTable, - function_coverage: &FunctionCoverage<'tcx>, + fn_cov_info: &'tcx FunctionCoverageInfo, + ids_info: &'tcx CoverageIdsInfo, covfun: &mut CovfunRecord<'tcx>, ) { - let counter_regions = function_coverage.counter_regions(); - if counter_regions.is_empty() { - return; - } - // Currently a function's mappings must all be in the same file as its body span. - let file_name = span_file_name(tcx, function_coverage.function_coverage_info.body_span); + let file_name = span_file_name(tcx, fn_cov_info.body_span); // Look up the global file ID for that filename. let global_file_id = global_file_table.global_file_id_for_file_name(file_name); @@ -140,10 +136,14 @@ fn fill_region_tables<'tcx>( // For each counter/region pair in this function+file, convert it to a // form suitable for FFI. - for (mapping_kind, region) in counter_regions { - debug!("Adding counter {mapping_kind:?} to map for {region:?}"); - let span = ffi::CoverageSpan::from_source_region(local_file_id, region); - match mapping_kind { + let is_zero_term = |term| !covfun.is_used || ids_info.is_zero_term(term); + for Mapping { kind, ref source_region } in &fn_cov_info.mappings { + // If the mapping refers to counters/expressions that were removed by + // MIR opts, replace those occurrences with zero. + let kind = kind.map_terms(|term| if is_zero_term(term) { CovTerm::Zero } else { term }); + + let span = ffi::CoverageSpan::from_source_region(local_file_id, source_region); + match kind { MappingKind::Code(term) => { code_regions.push(ffi::CodeRegion { span, counter: ffi::Counter::from_term(term) }); } -- cgit 1.4.1-3-g733a5 From d34c365eb0c40d907daf42fff42b7b6ebdc314ab Mon Sep 17 00:00:00 2001 From: Zalathar Date: Sat, 14 Dec 2024 23:14:19 +1100 Subject: coverage: Pull function source hash out of `map_data.rs` --- compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs | 7 +------ compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 3 ++- compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs | 9 ++++----- 3 files changed, 7 insertions(+), 12 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs index e1b2a1b87bb..261a014c3d1 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs @@ -1,6 +1,7 @@ use rustc_middle::mir::coverage::{CoverageIdsInfo, FunctionCoverageInfo}; pub(crate) struct FunctionCoverage<'tcx> { + #[expect(unused)] // This whole file gets deleted later in the same PR. pub(crate) function_coverage_info: &'tcx FunctionCoverageInfo, /// If `None`, the corresponding function is unused. ids_info: Option<&'tcx CoverageIdsInfo>, @@ -22,10 +23,4 @@ impl<'tcx> FunctionCoverage<'tcx> { pub(crate) fn is_used(&self) -> bool { self.ids_info.is_some() } - - /// Return the source hash, generated from the HIR node structure, and used to indicate whether - /// or not the source code structure changed between different compilations. - pub(crate) fn source_hash(&self) -> u64 { - if self.is_used() { self.function_coverage_info.function_source_hash } else { 0 } - } } diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index 0c7ad300a8b..9bc33967044 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -81,7 +81,8 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { // instances were visited during codegen. .sorted_by_cached_key(|&(instance, _)| tcx.symbol_name(instance).name) .filter_map(|(instance, function_coverage)| { - prepare_covfun_record(tcx, &mut global_file_table, instance, &function_coverage) + let is_used = function_coverage.is_used(); + prepare_covfun_record(tcx, &mut global_file_table, instance, is_used) }) .collect::>(); diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index fa0af8415e7..8e853f057be 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -19,7 +19,6 @@ use rustc_target::spec::HasTargetSpec; use tracing::debug; use crate::common::CodegenCx; -use crate::coverageinfo::map_data::FunctionCoverage; use crate::coverageinfo::mapgen::{GlobalFileTable, VirtualFileMapping, span_file_name}; use crate::coverageinfo::{ffi, llvm_cov}; use crate::llvm; @@ -49,17 +48,17 @@ pub(crate) fn prepare_covfun_record<'tcx>( tcx: TyCtxt<'tcx>, global_file_table: &mut GlobalFileTable, instance: Instance<'tcx>, - function_coverage: &FunctionCoverage<'tcx>, + is_used: bool, ) -> Option> { let fn_cov_info = tcx.instance_mir(instance.def).function_coverage_info.as_deref()?; let ids_info = tcx.coverage_ids_info(instance.def); - let expressions = prepare_expressions(fn_cov_info, ids_info, function_coverage.is_used()); + let expressions = prepare_expressions(fn_cov_info, ids_info, is_used); let mut covfun = CovfunRecord { mangled_function_name: tcx.symbol_name(instance).name, - source_hash: function_coverage.source_hash(), - is_used: function_coverage.is_used(), + source_hash: if is_used { fn_cov_info.function_source_hash } else { 0 }, + is_used, virtual_file_mapping: VirtualFileMapping::default(), expressions, regions: ffi::Regions::default(), -- cgit 1.4.1-3-g733a5 From 541d4e85d90b4c0416014c3620d3f3c9771bd476 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Sat, 14 Dec 2024 22:48:12 +1100 Subject: coverage: Track used functions in a set instead of a map This patch dismantles what was left of `FunctionCoverage` in `map_data.rs`, replaces `function_coverage_map` with a set, and overhauls how we prepare covfun records for unused functions. --- .../src/coverageinfo/map_data.rs | 26 ------- .../rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 82 +++++++++------------- .../rustc_codegen_llvm/src/coverageinfo/mod.rs | 19 ++--- 3 files changed, 37 insertions(+), 90 deletions(-) delete mode 100644 compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs deleted file mode 100644 index 261a014c3d1..00000000000 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs +++ /dev/null @@ -1,26 +0,0 @@ -use rustc_middle::mir::coverage::{CoverageIdsInfo, FunctionCoverageInfo}; - -pub(crate) struct FunctionCoverage<'tcx> { - #[expect(unused)] // This whole file gets deleted later in the same PR. - pub(crate) function_coverage_info: &'tcx FunctionCoverageInfo, - /// If `None`, the corresponding function is unused. - ids_info: Option<&'tcx CoverageIdsInfo>, -} - -impl<'tcx> FunctionCoverage<'tcx> { - pub(crate) fn new_used( - function_coverage_info: &'tcx FunctionCoverageInfo, - ids_info: &'tcx CoverageIdsInfo, - ) -> Self { - Self { function_coverage_info, ids_info: Some(ids_info) } - } - - pub(crate) fn new_unused(function_coverage_info: &'tcx FunctionCoverageInfo) -> Self { - Self { function_coverage_info, ids_info: None } - } - - /// Returns true for a used (called) function, and false for an unused function. - pub(crate) fn is_used(&self) -> bool { - self.ids_info.is_some() - } -} diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index 9bc33967044..ca334286200 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -18,7 +18,6 @@ use tracing::debug; use crate::common::CodegenCx; use crate::coverageinfo::llvm_cov; -use crate::coverageinfo::map_data::FunctionCoverage; use crate::coverageinfo::mapgen::covfun::prepare_covfun_record; use crate::llvm; @@ -49,23 +48,11 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { debug!("Generating coverage map for CodegenUnit: `{}`", cx.codegen_unit.name()); - // In order to show that unused functions have coverage counts of zero (0), LLVM requires the - // functions exist. Generate synthetic functions with a (required) single counter, and add the - // MIR `Coverage` code regions to the `function_coverage_map`, before calling - // `ctx.take_function_coverage_map()`. - if cx.codegen_unit.is_code_coverage_dead_code_cgu() { - add_unused_functions(cx); - } - // FIXME(#132395): Can this be none even when coverage is enabled? - let function_coverage_map = match cx.coverage_cx { - Some(ref cx) => cx.take_function_coverage_map(), + let instances_used = match cx.coverage_cx { + Some(ref cx) => cx.instances_used.borrow(), None => return, }; - if function_coverage_map.is_empty() { - // This CGU has no functions with coverage instrumentation. - return; - } // The order of entries in this global file table needs to be deterministic, // and ideally should also be independent of the details of stable-hashing, @@ -74,18 +61,27 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { // are satisfied, the order can be arbitrary. let mut global_file_table = GlobalFileTable::new(); - let covfun_records = function_coverage_map - .into_iter() + let mut covfun_records = instances_used + .iter() + .copied() // Sort by symbol name, so that the global file table is built in an // order that doesn't depend on the stable-hash-based order in which // instances were visited during codegen. - .sorted_by_cached_key(|&(instance, _)| tcx.symbol_name(instance).name) - .filter_map(|(instance, function_coverage)| { - let is_used = function_coverage.is_used(); - prepare_covfun_record(tcx, &mut global_file_table, instance, is_used) - }) + .sorted_by_cached_key(|&instance| tcx.symbol_name(instance).name) + .filter_map(|instance| prepare_covfun_record(tcx, &mut global_file_table, instance, true)) .collect::>(); + // In a single designated CGU, also prepare covfun records for functions + // in this crate that were instrumented for coverage, but are unused. + if cx.codegen_unit.is_code_coverage_dead_code_cgu() { + let mut unused_instances = gather_unused_function_instances(cx); + // Sort the unused instances by symbol name, for the same reason as the used ones. + unused_instances.sort_by_cached_key(|&instance| tcx.symbol_name(instance).name); + covfun_records.extend(unused_instances.into_iter().filter_map(|instance| { + prepare_covfun_record(tcx, &mut global_file_table, instance, false) + })); + } + // If there are no covfun records for this CGU, don't generate a covmap record. // Emitting a covmap record without any covfun records causes `llvm-cov` to // fail when generating coverage reports, and if there are no covfun records @@ -261,7 +257,7 @@ fn generate_covmap_record<'ll>(cx: &CodegenCx<'ll, '_>, version: u32, filenames_ /// coverage map (in a single designated CGU) so that we still emit coverage mappings for them. /// We also end up adding their symbol names to a special global array that LLVM will include in /// its embedded coverage data. -fn add_unused_functions(cx: &CodegenCx<'_, '_>) { +fn gather_unused_function_instances<'tcx>(cx: &CodegenCx<'_, 'tcx>) -> Vec> { assert!(cx.codegen_unit.is_code_coverage_dead_code_cgu()); let tcx = cx.tcx; @@ -279,20 +275,17 @@ fn add_unused_functions(cx: &CodegenCx<'_, '_>) { && !usage.used_via_inlining.contains(&d) }; - // Scan for unused functions that were instrumented for coverage. - for def_id in tcx.mir_keys(()).iter().copied().filter(|&def_id| is_unused_fn(def_id)) { - // Get the coverage info from MIR, skipping functions that were never instrumented. - let body = tcx.optimized_mir(def_id); - let Some(function_coverage_info) = body.function_coverage_info.as_deref() else { continue }; + // FIXME(#79651): Consider trying to filter out dummy instantiations of + // unused generic functions from library crates, because they can produce + // "unused instantiation" in coverage reports even when they are actually + // used by some downstream crate in the same binary. - // FIXME(79651): Consider trying to filter out dummy instantiations of - // unused generic functions from library crates, because they can produce - // "unused instantiation" in coverage reports even when they are actually - // used by some downstream crate in the same binary. - - debug!("generating unused fn: {def_id:?}"); - add_unused_function_coverage(cx, def_id, function_coverage_info); - } + tcx.mir_keys(()) + .iter() + .copied() + .filter(|&def_id| is_unused_fn(def_id)) + .map(|def_id| make_dummy_instance(tcx, def_id)) + .collect::>() } struct UsageSets<'tcx> { @@ -357,16 +350,11 @@ fn prepare_usage_sets<'tcx>(tcx: TyCtxt<'tcx>) -> UsageSets<'tcx> { UsageSets { all_mono_items, used_via_inlining, missing_own_coverage } } -fn add_unused_function_coverage<'tcx>( - cx: &CodegenCx<'_, 'tcx>, - def_id: LocalDefId, - function_coverage_info: &'tcx mir::coverage::FunctionCoverageInfo, -) { - let tcx = cx.tcx; - let def_id = def_id.to_def_id(); +fn make_dummy_instance<'tcx>(tcx: TyCtxt<'tcx>, local_def_id: LocalDefId) -> ty::Instance<'tcx> { + let def_id = local_def_id.to_def_id(); // Make a dummy instance that fills in all generics with placeholders. - let instance = ty::Instance::new( + ty::Instance::new( def_id, ty::GenericArgs::for_item(tcx, def_id, |param, _| { if let ty::GenericParamDefKind::Lifetime = param.kind { @@ -375,9 +363,5 @@ fn add_unused_function_coverage<'tcx>( tcx.mk_param_from_def(param) } }), - ); - - // An unused function's mappings will all be rewritten to map to zero. - let function_coverage = FunctionCoverage::new_unused(function_coverage_info); - cx.coverage_cx().function_coverage_map.borrow_mut().insert(instance, function_coverage); + ) } diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs index 82b6677e203..7311cd9d230 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs @@ -5,7 +5,7 @@ use rustc_abi::Size; use rustc_codegen_ssa::traits::{ BuilderMethods, ConstCodegenMethods, CoverageInfoBuilderMethods, MiscCodegenMethods, }; -use rustc_data_structures::fx::{FxHashMap, FxIndexMap}; +use rustc_data_structures::fx::{FxHashMap, FxIndexSet}; use rustc_middle::mir::coverage::CoverageKind; use rustc_middle::ty::Instance; use rustc_middle::ty::layout::HasTyCtxt; @@ -13,18 +13,16 @@ use tracing::{debug, instrument}; use crate::builder::Builder; use crate::common::CodegenCx; -use crate::coverageinfo::map_data::FunctionCoverage; use crate::llvm; pub(crate) mod ffi; mod llvm_cov; -pub(crate) mod map_data; mod mapgen; /// Extra per-CGU context/state needed for coverage instrumentation. pub(crate) struct CguCoverageContext<'ll, 'tcx> { /// Coverage data for each instrumented function identified by DefId. - pub(crate) function_coverage_map: RefCell, FunctionCoverage<'tcx>>>, + pub(crate) instances_used: RefCell>>, pub(crate) pgo_func_name_var_map: RefCell, &'ll llvm::Value>>, pub(crate) mcdc_condition_bitmap_map: RefCell, Vec<&'ll llvm::Value>>>, @@ -34,17 +32,13 @@ pub(crate) struct CguCoverageContext<'ll, 'tcx> { impl<'ll, 'tcx> CguCoverageContext<'ll, 'tcx> { pub(crate) fn new() -> Self { Self { - function_coverage_map: Default::default(), + instances_used: RefCell::>::default(), pgo_func_name_var_map: Default::default(), mcdc_condition_bitmap_map: Default::default(), covfun_section_name: Default::default(), } } - fn take_function_coverage_map(&self) -> FxIndexMap, FunctionCoverage<'tcx>> { - self.function_coverage_map.replace(FxIndexMap::default()) - } - /// LLVM use a temp value to record evaluated mcdc test vector of each decision, which is /// called condition bitmap. In order to handle nested decisions, several condition bitmaps can /// be allocated for a function body. These values are named `mcdc.addr.{i}` and are a 32-bit @@ -157,12 +151,7 @@ impl<'tcx> CoverageInfoBuilderMethods<'tcx> for Builder<'_, '_, 'tcx> { // Mark the instance as used in this CGU, for coverage purposes. // This includes functions that were not partitioned into this CGU, // but were MIR-inlined into one of this CGU's functions. - coverage_cx.function_coverage_map.borrow_mut().entry(instance).or_insert_with(|| { - FunctionCoverage::new_used( - function_coverage_info, - bx.tcx.coverage_ids_info(instance.def), - ) - }); + coverage_cx.instances_used.borrow_mut().insert(instance); match *kind { CoverageKind::SpanMarker | CoverageKind::BlockMarker { .. } => unreachable!( -- cgit 1.4.1-3-g733a5 From 2620eb42d72d24baa1ca1056a769862b92c85f7f Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Fri, 13 Dec 2024 10:29:23 +1100 Subject: Re-export more `rustc_span::symbol` things from `rustc_span`. `rustc_span::symbol` defines some things that are re-exported from `rustc_span`, such as `Symbol` and `sym`. But it doesn't re-export some closely related things such as `Ident` and `kw`. So you can do `use rustc_span::{Symbol, sym}` but you have to do `use rustc_span::symbol::{Ident, kw}`, which is inconsistent for no good reason. This commit re-exports `Ident`, `kw`, and `MacroRulesNormalizedIdent`, and changes many `rustc_span::symbol::` qualifiers in `compiler/` to `rustc_span::`. This is a 200+ net line of code reduction, mostly because many files with two `use rustc_span` items can be reduced to one. --- compiler/rustc_abi/src/extern_abi/mod.rs | 3 +-- compiler/rustc_ast/src/ast.rs | 3 +-- compiler/rustc_ast/src/attr/mod.rs | 3 +-- compiler/rustc_ast/src/entry.rs | 3 +-- compiler/rustc_ast/src/expand/allocator.rs | 2 +- compiler/rustc_ast/src/expand/mod.rs | 2 +- compiler/rustc_ast/src/format.rs | 3 +-- compiler/rustc_ast/src/mut_visit.rs | 3 +-- compiler/rustc_ast/src/token.rs | 5 ++--- compiler/rustc_ast/src/util/literal.rs | 3 +-- compiler/rustc_ast/src/util/parser.rs | 2 +- compiler/rustc_ast/src/visit.rs | 3 +-- compiler/rustc_ast_lowering/src/asm.rs | 3 +-- compiler/rustc_ast_lowering/src/delegation.rs | 3 +-- compiler/rustc_ast_lowering/src/errors.rs | 3 +-- compiler/rustc_ast_lowering/src/expr.rs | 3 +-- compiler/rustc_ast_lowering/src/format.rs | 3 +-- compiler/rustc_ast_lowering/src/item.rs | 7 ++----- compiler/rustc_ast_lowering/src/lib.rs | 3 +-- compiler/rustc_ast_lowering/src/pat.rs | 3 +-- compiler/rustc_ast_lowering/src/path.rs | 3 +-- compiler/rustc_ast_passes/src/ast_validation.rs | 3 +-- compiler/rustc_ast_passes/src/errors.rs | 3 +-- compiler/rustc_ast_passes/src/feature_gate.rs | 3 +-- compiler/rustc_ast_pretty/src/pprust/state.rs | 4 ++-- compiler/rustc_ast_pretty/src/pprust/state/item.rs | 2 +- compiler/rustc_ast_pretty/src/pprust/tests.rs | 3 +-- compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs | 2 +- compiler/rustc_attr_parsing/src/attributes/cfg.rs | 3 +-- compiler/rustc_attr_parsing/src/attributes/confusables.rs | 2 +- compiler/rustc_attr_parsing/src/attributes/deprecation.rs | 3 +-- compiler/rustc_attr_parsing/src/attributes/repr.rs | 2 +- compiler/rustc_attr_parsing/src/attributes/stability.rs | 3 +-- compiler/rustc_attr_parsing/src/attributes/util.rs | 2 +- compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs | 3 +-- compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs | 3 +-- compiler/rustc_borrowck/src/diagnostics/mod.rs | 3 +-- compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs | 3 +-- compiler/rustc_borrowck/src/diagnostics/region_errors.rs | 3 +-- compiler/rustc_borrowck/src/diagnostics/region_name.rs | 3 +-- compiler/rustc_borrowck/src/diagnostics/var_name.rs | 3 +-- compiler/rustc_borrowck/src/nll.rs | 2 +- compiler/rustc_borrowck/src/type_check/mod.rs | 3 +-- compiler/rustc_borrowck/src/type_check/relate_tys.rs | 3 +-- compiler/rustc_borrowck/src/universal_regions.rs | 3 +-- compiler/rustc_builtin_macros/src/alloc_error_handler.rs | 3 +-- compiler/rustc_builtin_macros/src/asm.rs | 3 +-- compiler/rustc_builtin_macros/src/assert.rs | 3 +-- compiler/rustc_builtin_macros/src/assert/context.rs | 3 +-- compiler/rustc_builtin_macros/src/autodiff.rs | 5 ++--- compiler/rustc_builtin_macros/src/cfg_accessible.rs | 3 +-- compiler/rustc_builtin_macros/src/cfg_eval.rs | 3 +-- compiler/rustc_builtin_macros/src/concat.rs | 2 +- compiler/rustc_builtin_macros/src/concat_idents.rs | 3 +-- compiler/rustc_builtin_macros/src/derive.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/clone.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs | 3 +-- .../rustc_builtin_macros/src/deriving/cmp/partial_ord.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/coerce_pointee.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/debug.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/decodable.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/default.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/encodable.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/generic/mod.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/generic/ty.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/hash.rs | 3 +-- compiler/rustc_builtin_macros/src/deriving/mod.rs | 3 +-- compiler/rustc_builtin_macros/src/edition_panic.rs | 3 +-- compiler/rustc_builtin_macros/src/env.rs | 3 +-- compiler/rustc_builtin_macros/src/errors.rs | 3 +-- compiler/rustc_builtin_macros/src/format.rs | 3 +-- compiler/rustc_builtin_macros/src/global_allocator.rs | 3 +-- compiler/rustc_builtin_macros/src/lib.rs | 2 +- compiler/rustc_builtin_macros/src/proc_macro_harness.rs | 3 +-- compiler/rustc_builtin_macros/src/source_util.rs | 3 +-- .../rustc_builtin_macros/src/standard_library_imports.rs | 3 +-- compiler/rustc_builtin_macros/src/test.rs | 3 +-- compiler/rustc_builtin_macros/src/test_harness.rs | 3 +-- compiler/rustc_builtin_macros/src/trace_macros.rs | 3 +-- compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs | 2 +- compiler/rustc_codegen_cranelift/src/main_shim.rs | 3 +-- compiler/rustc_codegen_llvm/src/back/write.rs | 3 +-- compiler/rustc_codegen_llvm/src/base.rs | 2 +- compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs | 2 +- compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs | 3 +-- compiler/rustc_codegen_llvm/src/debuginfo/mod.rs | 3 +-- compiler/rustc_codegen_llvm/src/lib.rs | 2 +- compiler/rustc_codegen_llvm/src/llvm_util.rs | 2 +- compiler/rustc_codegen_ssa/src/assert_module_sources.rs | 3 +-- compiler/rustc_codegen_ssa/src/back/archive.rs | 2 +- compiler/rustc_codegen_ssa/src/back/link.rs | 2 +- compiler/rustc_codegen_ssa/src/back/linker.rs | 2 +- compiler/rustc_codegen_ssa/src/back/write.rs | 3 +-- compiler/rustc_codegen_ssa/src/base.rs | 3 +-- compiler/rustc_codegen_ssa/src/codegen_attrs.rs | 3 +-- compiler/rustc_codegen_ssa/src/lib.rs | 2 +- compiler/rustc_codegen_ssa/src/mir/debuginfo.rs | 3 +-- compiler/rustc_codegen_ssa/src/target_features.rs | 3 +-- compiler/rustc_codegen_ssa/src/traits/backend.rs | 2 +- compiler/rustc_const_eval/src/check_consts/ops.rs | 3 +-- .../src/check_consts/post_drop_elaboration.rs | 2 +- compiler/rustc_const_eval/src/const_eval/machine.rs | 3 +-- compiler/rustc_const_eval/src/interpret/intrinsics.rs | 2 +- compiler/rustc_const_eval/src/interpret/operator.rs | 2 +- compiler/rustc_const_eval/src/interpret/validity.rs | 2 +- compiler/rustc_const_eval/src/util/caller_location.rs | 2 +- compiler/rustc_driver_impl/src/pretty.rs | 3 +-- compiler/rustc_errors/src/diagnostic.rs | 3 +-- compiler/rustc_errors/src/diagnostic_impls.rs | 3 +-- compiler/rustc_expand/src/base.rs | 3 +-- compiler/rustc_expand/src/build.rs | 3 +-- compiler/rustc_expand/src/config.rs | 3 +-- compiler/rustc_expand/src/errors.rs | 3 +-- compiler/rustc_expand/src/expand.rs | 3 +-- compiler/rustc_expand/src/mbe.rs | 3 +-- compiler/rustc_expand/src/mbe/diagnostics.rs | 3 +-- compiler/rustc_expand/src/mbe/macro_check.rs | 3 +-- compiler/rustc_expand/src/mbe/macro_parser.rs | 3 +-- compiler/rustc_expand/src/mbe/macro_rules.rs | 3 +-- compiler/rustc_expand/src/mbe/metavar_expr.rs | 3 +-- compiler/rustc_expand/src/mbe/quoted.rs | 3 +-- compiler/rustc_expand/src/mbe/transcribe.rs | 5 +++-- compiler/rustc_expand/src/module.rs | 3 +-- compiler/rustc_expand/src/placeholders.rs | 3 +-- compiler/rustc_expand/src/proc_macro_server.rs | 5 ++--- compiler/rustc_feature/src/accepted.rs | 2 +- compiler/rustc_feature/src/builtin_attrs.rs | 2 +- compiler/rustc_feature/src/lib.rs | 2 +- compiler/rustc_feature/src/removed.rs | 2 +- compiler/rustc_feature/src/unstable.rs | 3 +-- compiler/rustc_hir/src/definitions.rs | 2 +- compiler/rustc_hir/src/hir.rs | 3 +-- compiler/rustc_hir/src/intravisit.rs | 3 +-- compiler/rustc_hir/src/lang_items.rs | 3 +-- compiler/rustc_hir/src/pat_util.rs | 3 +-- compiler/rustc_hir/src/weak_lang_items.rs | 2 +- compiler/rustc_hir_analysis/src/check/entry.rs | 3 +-- compiler/rustc_hir_analysis/src/check/intrinsic.rs | 3 +-- compiler/rustc_hir_analysis/src/check/mod.rs | 3 +-- compiler/rustc_hir_analysis/src/check/wfcheck.rs | 3 +-- compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs | 3 +-- compiler/rustc_hir_analysis/src/collect.rs | 3 +-- compiler/rustc_hir_analysis/src/collect/generics_of.rs | 3 +-- compiler/rustc_hir_analysis/src/collect/predicates_of.rs | 3 +-- .../rustc_hir_analysis/src/collect/resolve_bound_vars.rs | 3 +-- compiler/rustc_hir_analysis/src/collect/type_of.rs | 5 ++--- compiler/rustc_hir_analysis/src/errors.rs | 3 +-- compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs | 5 ++--- compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs | 3 +-- compiler/rustc_hir_analysis/src/hir_ty_lowering/generics.rs | 2 +- compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs | 3 +-- compiler/rustc_hir_analysis/src/variance/dump.rs | 2 +- compiler/rustc_hir_pretty/src/lib.rs | 3 +-- compiler/rustc_hir_typeck/src/callee.rs | 3 +-- compiler/rustc_hir_typeck/src/cast.rs | 3 +-- compiler/rustc_hir_typeck/src/check.rs | 2 +- compiler/rustc_hir_typeck/src/coercion.rs | 3 +-- compiler/rustc_hir_typeck/src/demand.rs | 5 ++--- compiler/rustc_hir_typeck/src/errors.rs | 3 +-- compiler/rustc_hir_typeck/src/expr.rs | 3 +-- compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs | 3 +-- .../src/fn_ctxt/adjust_fulfillment_errors.rs | 3 +-- compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs | 3 +-- compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs | 3 +-- compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs | 3 +-- compiler/rustc_hir_typeck/src/method/mod.rs | 3 +-- .../rustc_hir_typeck/src/method/prelude_edition_lints.rs | 12 +++++------- compiler/rustc_hir_typeck/src/method/probe.rs | 3 +-- compiler/rustc_hir_typeck/src/method/suggest.rs | 4 ++-- compiler/rustc_hir_typeck/src/op.rs | 3 +-- compiler/rustc_hir_typeck/src/pat.rs | 3 +-- compiler/rustc_hir_typeck/src/place_op.rs | 3 +-- compiler/rustc_hir_typeck/src/writeback.rs | 3 +-- compiler/rustc_incremental/src/assert_dep_graph.rs | 3 +-- compiler/rustc_incremental/src/errors.rs | 3 +-- compiler/rustc_incremental/src/persist/dirty_clean.rs | 3 +-- compiler/rustc_infer/src/infer/mod.rs | 3 +-- compiler/rustc_infer/src/traits/util.rs | 3 +-- compiler/rustc_interface/src/interface.rs | 3 +-- compiler/rustc_interface/src/passes.rs | 3 +-- compiler/rustc_interface/src/proc_macro_decls.rs | 2 +- compiler/rustc_interface/src/tests.rs | 3 +-- compiler/rustc_interface/src/util.rs | 2 +- compiler/rustc_lint/src/builtin.rs | 3 +-- compiler/rustc_lint/src/context.rs | 3 +-- compiler/rustc_lint/src/dangling.rs | 3 +-- compiler/rustc_lint/src/early.rs | 3 +-- compiler/rustc_lint/src/early/diagnostics.rs | 3 +-- compiler/rustc_lint/src/early/diagnostics/check_cfg.rs | 3 +-- compiler/rustc_lint/src/enum_intrinsics_non_enums.rs | 3 +-- compiler/rustc_lint/src/internal.rs | 3 +-- compiler/rustc_lint/src/levels.rs | 3 +-- compiler/rustc_lint/src/lints.rs | 8 +++----- compiler/rustc_lint/src/non_ascii_idents.rs | 2 +- compiler/rustc_lint/src/non_fmt_panic.rs | 3 +-- compiler/rustc_lint/src/non_local_def.rs | 3 +-- compiler/rustc_lint/src/nonstandard_style.rs | 3 +-- compiler/rustc_lint/src/noop_method_call.rs | 2 +- compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs | 3 +-- compiler/rustc_lint/src/pass_by_value.rs | 2 +- compiler/rustc_lint/src/passes.rs | 2 +- compiler/rustc_lint/src/traits.rs | 2 +- compiler/rustc_lint/src/types.rs | 3 +-- compiler/rustc_lint/src/unqualified_local_imports.rs | 2 +- compiler/rustc_lint/src/unused.rs | 3 +-- compiler/rustc_lint_defs/src/lib.rs | 7 +++---- compiler/rustc_macros/src/diagnostics/mod.rs | 2 +- compiler/rustc_metadata/src/creader.rs | 3 +-- compiler/rustc_metadata/src/locator.rs | 3 +-- compiler/rustc_metadata/src/native_libs.rs | 2 +- compiler/rustc_metadata/src/rmeta/decoder.rs | 5 ++--- compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs | 3 +-- compiler/rustc_metadata/src/rmeta/encoder.rs | 2 +- compiler/rustc_metadata/src/rmeta/mod.rs | 3 +-- compiler/rustc_middle/src/arena.rs | 4 ++-- compiler/rustc_middle/src/dep_graph/dep_node.rs | 2 +- compiler/rustc_middle/src/hir/map/mod.rs | 3 +-- compiler/rustc_middle/src/lint.rs | 4 ++-- compiler/rustc_middle/src/metadata.rs | 2 +- compiler/rustc_middle/src/middle/codegen_fn_attrs.rs | 2 +- compiler/rustc_middle/src/middle/limits.rs | 2 +- compiler/rustc_middle/src/middle/mod.rs | 3 +-- compiler/rustc_middle/src/middle/stability.rs | 3 +-- compiler/rustc_middle/src/mir/consts.rs | 4 ++-- compiler/rustc_middle/src/mir/mod.rs | 3 +-- compiler/rustc_middle/src/mir/mono.rs | 3 +-- compiler/rustc_middle/src/mir/query.rs | 3 +-- compiler/rustc_middle/src/mir/syntax.rs | 3 +-- compiler/rustc_middle/src/query/erase.rs | 2 +- compiler/rustc_middle/src/query/keys.rs | 3 +-- compiler/rustc_middle/src/query/mod.rs | 9 ++++----- compiler/rustc_middle/src/query/on_disk_cache.rs | 2 +- compiler/rustc_middle/src/traits/mod.rs | 3 +-- compiler/rustc_middle/src/traits/specialization_graph.rs | 2 +- compiler/rustc_middle/src/ty/adt.rs | 2 +- compiler/rustc_middle/src/ty/assoc.rs | 2 +- compiler/rustc_middle/src/ty/closure.rs | 3 +-- compiler/rustc_middle/src/ty/codec.rs | 2 +- compiler/rustc_middle/src/ty/context.rs | 3 +-- compiler/rustc_middle/src/ty/generics.rs | 3 +-- compiler/rustc_middle/src/ty/layout.rs | 3 +-- compiler/rustc_middle/src/ty/mod.rs | 3 +-- compiler/rustc_middle/src/ty/parameterized.rs | 2 +- compiler/rustc_middle/src/ty/print/pretty.rs | 3 +-- compiler/rustc_middle/src/ty/region.rs | 3 +-- compiler/rustc_middle/src/ty/structural_impls.rs | 4 ++-- compiler/rustc_middle/src/ty/sty.rs | 3 +-- compiler/rustc_middle/src/util/call_kind.rs | 3 +-- compiler/rustc_mir_build/src/builder/matches/mod.rs | 3 +-- compiler/rustc_mir_build/src/builder/matches/test.rs | 3 +-- compiler/rustc_mir_build/src/builder/mod.rs | 3 +-- compiler/rustc_mir_build/src/check_unsafety.rs | 3 +-- compiler/rustc_mir_build/src/errors.rs | 3 +-- compiler/rustc_mir_dataflow/src/framework/graphviz.rs | 2 +- compiler/rustc_mir_dataflow/src/rustc_peek.rs | 3 +-- compiler/rustc_mir_transform/src/coroutine.rs | 3 +-- compiler/rustc_mir_transform/src/coroutine/by_move_body.rs | 2 +- compiler/rustc_mir_transform/src/function_item_references.rs | 3 +-- compiler/rustc_mir_transform/src/instsimplify.rs | 3 +-- compiler/rustc_mir_transform/src/lower_intrinsics.rs | 2 +- compiler/rustc_monomorphize/src/collector.rs | 3 +-- compiler/rustc_monomorphize/src/mono_checks/move_check.rs | 3 +-- compiler/rustc_monomorphize/src/partitioning.rs | 2 +- compiler/rustc_parse/src/errors.rs | 3 +-- compiler/rustc_parse/src/lexer/mod.rs | 3 +-- compiler/rustc_parse/src/lexer/unicode_chars.rs | 3 +-- compiler/rustc_parse/src/parser/attr.rs | 3 +-- compiler/rustc_parse/src/parser/diagnostics.rs | 4 ++-- compiler/rustc_parse/src/parser/expr.rs | 3 +-- compiler/rustc_parse/src/parser/generics.rs | 3 +-- compiler/rustc_parse/src/parser/item.rs | 3 +-- compiler/rustc_parse/src/parser/mod.rs | 3 +-- compiler/rustc_parse/src/parser/mut_visit/tests.rs | 3 +-- compiler/rustc_parse/src/parser/nonterminal.rs | 2 +- compiler/rustc_parse/src/parser/pat.rs | 3 +-- compiler/rustc_parse/src/parser/path.rs | 3 +-- compiler/rustc_parse/src/parser/stmt.rs | 3 +-- compiler/rustc_parse/src/parser/tests.rs | 5 +++-- compiler/rustc_parse/src/parser/ty.rs | 3 +-- compiler/rustc_passes/src/abi_test.rs | 2 +- compiler/rustc_passes/src/check_attr.rs | 3 +-- compiler/rustc_passes/src/dead.rs | 2 +- compiler/rustc_passes/src/diagnostic_items.rs | 2 +- compiler/rustc_passes/src/entry.rs | 3 +-- compiler/rustc_passes/src/lang_items.rs | 9 ++++----- compiler/rustc_passes/src/layout_test.rs | 3 +-- compiler/rustc_passes/src/lib_features.rs | 3 +-- compiler/rustc_passes/src/liveness.rs | 3 +-- compiler/rustc_passes/src/naked_functions.rs | 3 +-- compiler/rustc_passes/src/stability.rs | 3 +-- compiler/rustc_privacy/src/lib.rs | 3 +-- compiler/rustc_query_system/src/ich/hcx.rs | 3 +-- compiler/rustc_query_system/src/ich/mod.rs | 2 +- compiler/rustc_resolve/src/build_reduced_graph.rs | 3 +-- compiler/rustc_resolve/src/check_unused.rs | 3 +-- compiler/rustc_resolve/src/def_collector.rs | 3 +-- compiler/rustc_resolve/src/diagnostics.rs | 3 +-- compiler/rustc_resolve/src/errors.rs | 3 +-- compiler/rustc_resolve/src/ident.rs | 3 +-- compiler/rustc_resolve/src/imports.rs | 3 +-- compiler/rustc_resolve/src/late.rs | 3 +-- compiler/rustc_resolve/src/late/diagnostics.rs | 3 +-- compiler/rustc_resolve/src/lib.rs | 3 +-- compiler/rustc_resolve/src/macros.rs | 3 +-- compiler/rustc_resolve/src/rustdoc.rs | 3 +-- compiler/rustc_session/src/config/cfg.rs | 2 +- compiler/rustc_session/src/cstore.rs | 3 +-- compiler/rustc_session/src/output.rs | 3 +-- compiler/rustc_session/src/parse.rs | 2 +- compiler/rustc_smir/src/rustc_smir/context.rs | 3 +-- compiler/rustc_span/src/edit_distance.rs | 2 +- compiler/rustc_span/src/lib.rs | 2 +- compiler/rustc_symbol_mangling/src/test.rs | 2 +- compiler/rustc_symbol_mangling/src/v0.rs | 2 +- compiler/rustc_target/src/asm/mod.rs | 4 ++-- compiler/rustc_target/src/spec/mod.rs | 2 +- compiler/rustc_target/src/target_features.rs | 2 +- .../src/error_reporting/infer/need_type_info.rs | 3 +-- .../infer/nice_region_error/named_anon_conflict.rs | 2 +- .../infer/nice_region_error/static_impl_trait.rs | 3 +-- .../rustc_trait_selection/src/error_reporting/infer/note.rs | 2 +- .../src/error_reporting/infer/region.rs | 3 +-- .../src/error_reporting/traits/fulfillment_errors.rs | 3 +-- .../src/error_reporting/traits/on_unimplemented.rs | 3 +-- .../src/error_reporting/traits/suggestions.rs | 5 +++-- compiler/rustc_trait_selection/src/errors.rs | 3 +-- .../rustc_trait_selection/src/errors/note_and_explain.rs | 3 +-- compiler/rustc_trait_selection/src/traits/coherence.rs | 3 +-- compiler/rustc_trait_selection/src/traits/project.rs | 2 +- compiler/rustc_trait_selection/src/traits/select/mod.rs | 3 +-- compiler/rustc_transmute/src/lib.rs | 2 +- compiler/rustc_ty_utils/src/assoc.rs | 2 +- compiler/rustc_ty_utils/src/layout.rs | 3 +-- 335 files changed, 371 insertions(+), 617 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_abi/src/extern_abi/mod.rs b/compiler/rustc_abi/src/extern_abi/mod.rs index f7e41280131..390f2dbc10f 100644 --- a/compiler/rustc_abi/src/extern_abi/mod.rs +++ b/compiler/rustc_abi/src/extern_abi/mod.rs @@ -1,8 +1,7 @@ use std::fmt; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; -use rustc_span::symbol::sym; -use rustc_span::{Span, Symbol}; +use rustc_span::{Span, Symbol, sym}; #[cfg(test)] mod tests; diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index c0b96f50b60..69c3e0553d4 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -31,8 +31,7 @@ use rustc_data_structures::sync::Lrc; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; pub use rustc_span::AttrId; use rustc_span::source_map::{Spanned, respan}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span}; +use rustc_span::{DUMMY_SP, ErrorGuaranteed, Ident, Span, Symbol, kw, sym}; use thin_vec::{ThinVec, thin_vec}; pub use crate::format::*; diff --git a/compiler/rustc_ast/src/attr/mod.rs b/compiler/rustc_ast/src/attr/mod.rs index 8ee3d4d590c..4ce1d4882ef 100644 --- a/compiler/rustc_ast/src/attr/mod.rs +++ b/compiler/rustc_ast/src/attr/mod.rs @@ -5,8 +5,7 @@ use std::iter; use std::sync::atomic::{AtomicU32, Ordering}; use rustc_index::bit_set::GrowableBitSet; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol, sym}; +use rustc_span::{Ident, Span, Symbol, sym}; use smallvec::{SmallVec, smallvec}; use thin_vec::{ThinVec, thin_vec}; diff --git a/compiler/rustc_ast/src/entry.rs b/compiler/rustc_ast/src/entry.rs index fffcb3ef988..ab1413d6080 100644 --- a/compiler/rustc_ast/src/entry.rs +++ b/compiler/rustc_ast/src/entry.rs @@ -1,5 +1,4 @@ -use rustc_span::Symbol; -use rustc_span::symbol::sym; +use rustc_span::{Symbol, sym}; use crate::attr::{self, AttributeExt}; diff --git a/compiler/rustc_ast/src/expand/allocator.rs b/compiler/rustc_ast/src/expand/allocator.rs index bee7dfb61da..dd8d5ae624a 100644 --- a/compiler/rustc_ast/src/expand/allocator.rs +++ b/compiler/rustc_ast/src/expand/allocator.rs @@ -1,5 +1,5 @@ use rustc_macros::HashStable_Generic; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; #[derive(Clone, Debug, Copy, Eq, PartialEq, HashStable_Generic)] pub enum AllocatorKind { diff --git a/compiler/rustc_ast/src/expand/mod.rs b/compiler/rustc_ast/src/expand/mod.rs index d259677e98e..04c81629323 100644 --- a/compiler/rustc_ast/src/expand/mod.rs +++ b/compiler/rustc_ast/src/expand/mod.rs @@ -1,8 +1,8 @@ //! Definitions shared by macros / syntax extensions and e.g. `rustc_middle`. use rustc_macros::{Decodable, Encodable, HashStable_Generic}; +use rustc_span::Ident; use rustc_span::def_id::DefId; -use rustc_span::symbol::Ident; use crate::MetaItem; diff --git a/compiler/rustc_ast/src/format.rs b/compiler/rustc_ast/src/format.rs index d5900d83e4d..de628f09853 100644 --- a/compiler/rustc_ast/src/format.rs +++ b/compiler/rustc_ast/src/format.rs @@ -1,7 +1,6 @@ use rustc_data_structures::fx::FxHashMap; use rustc_macros::{Decodable, Encodable}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol}; +use rustc_span::{Ident, Span, Symbol}; use crate::Expr; use crate::ptr::P; diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs index f07266a3e2d..995924c2a29 100644 --- a/compiler/rustc_ast/src/mut_visit.rs +++ b/compiler/rustc_ast/src/mut_visit.rs @@ -13,9 +13,8 @@ use std::panic; use rustc_data_structures::flat_map_in_place::FlatMapInPlace; use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_data_structures::sync::Lrc; -use rustc_span::Span; use rustc_span::source_map::Spanned; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, Span}; use smallvec::{Array, SmallVec, smallvec}; use thin_vec::ThinVec; diff --git a/compiler/rustc_ast/src/token.rs b/compiler/rustc_ast/src/token.rs index 678f43e3511..ab82f18133e 100644 --- a/compiler/rustc_ast/src/token.rs +++ b/compiler/rustc_ast/src/token.rs @@ -11,11 +11,10 @@ use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; use rustc_data_structures::sync::Lrc; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; use rustc_span::edition::Edition; +use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span, kw, sym}; #[allow(clippy::useless_attribute)] // FIXME: following use of `hidden_glob_reexports` incorrectly triggers `useless_attribute` lint. #[allow(hidden_glob_reexports)] -use rustc_span::symbol::{Ident, Symbol}; -use rustc_span::symbol::{kw, sym}; -use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span}; +use rustc_span::{Ident, Symbol}; use crate::ast; use crate::ptr::P; diff --git a/compiler/rustc_ast/src/util/literal.rs b/compiler/rustc_ast/src/util/literal.rs index 498df5a7144..4459cb962e8 100644 --- a/compiler/rustc_ast/src/util/literal.rs +++ b/compiler/rustc_ast/src/util/literal.rs @@ -5,8 +5,7 @@ use std::{ascii, fmt, str}; use rustc_lexer::unescape::{ MixedUnit, Mode, byte_from_char, unescape_byte, unescape_char, unescape_mixed, unescape_unicode, }; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, kw, sym}; +use rustc_span::{Span, Symbol, kw, sym}; use tracing::debug; use crate::ast::{self, LitKind, MetaItemLit, StrStyle}; diff --git a/compiler/rustc_ast/src/util/parser.rs b/compiler/rustc_ast/src/util/parser.rs index e88bf27021a..0d8042005a8 100644 --- a/compiler/rustc_ast/src/util/parser.rs +++ b/compiler/rustc_ast/src/util/parser.rs @@ -1,4 +1,4 @@ -use rustc_span::symbol::kw; +use rustc_span::kw; use crate::ast::{self, BinOpKind}; use crate::token::{self, BinOpToken, Token}; diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs index 211d13659ee..c7cc772dabb 100644 --- a/compiler/rustc_ast/src/visit.rs +++ b/compiler/rustc_ast/src/visit.rs @@ -15,8 +15,7 @@ pub use rustc_ast_ir::visit::VisitorResult; pub use rustc_ast_ir::{try_visit, visit_opt, walk_list, walk_visitable_list}; -use rustc_span::Span; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, Span}; use crate::ast::*; use crate::ptr::P; diff --git a/compiler/rustc_ast_lowering/src/asm.rs b/compiler/rustc_ast_lowering/src/asm.rs index 569a15b0e07..2f1f1269ece 100644 --- a/compiler/rustc_ast_lowering/src/asm.rs +++ b/compiler/rustc_ast_lowering/src/asm.rs @@ -7,8 +7,7 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap}; use rustc_hir as hir; use rustc_hir::def::{DefKind, Res}; use rustc_session::parse::feature_err; -use rustc_span::symbol::kw; -use rustc_span::{Span, sym}; +use rustc_span::{Span, kw, sym}; use rustc_target::asm; use super::LoweringContext; diff --git a/compiler/rustc_ast_lowering/src/delegation.rs b/compiler/rustc_ast_lowering/src/delegation.rs index 70c94f4019a..758f1dc1c35 100644 --- a/compiler/rustc_ast_lowering/src/delegation.rs +++ b/compiler/rustc_ast_lowering/src/delegation.rs @@ -46,8 +46,7 @@ use rustc_errors::ErrorGuaranteed; use rustc_hir::def_id::DefId; use rustc_middle::span_bug; use rustc_middle::ty::{Asyncness, ResolverAstLowering}; -use rustc_span::Span; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, Span}; use rustc_target::spec::abi; use {rustc_ast as ast, rustc_hir as hir}; diff --git a/compiler/rustc_ast_lowering/src/errors.rs b/compiler/rustc_ast_lowering/src/errors.rs index 2564d4e2772..f727691bf47 100644 --- a/compiler/rustc_ast_lowering/src/errors.rs +++ b/compiler/rustc_ast_lowering/src/errors.rs @@ -1,8 +1,7 @@ use rustc_errors::codes::*; use rustc_errors::{Diag, DiagArgFromDisplay, EmissionGuarantee, SubdiagMessageOp, Subdiagnostic}; use rustc_macros::{Diagnostic, Subdiagnostic}; -use rustc_span::symbol::Ident; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol}; #[derive(Diagnostic)] #[diag(ast_lowering_generic_type_with_parentheses, code = E0214)] diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs index 32905806343..d16a3ce390d 100644 --- a/compiler/rustc_ast_lowering/src/expr.rs +++ b/compiler/rustc_ast_lowering/src/expr.rs @@ -13,8 +13,7 @@ use rustc_middle::span_bug; use rustc_middle::ty::TyCtxt; use rustc_session::errors::report_lit_error; use rustc_span::source_map::{Spanned, respan}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, DesugaringKind, Span}; +use rustc_span::{DUMMY_SP, DesugaringKind, Ident, Span, Symbol, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use visit::{Visitor, walk_expr}; diff --git a/compiler/rustc_ast_lowering/src/format.rs b/compiler/rustc_ast_lowering/src/format.rs index 653116e1fe0..22aa1e6fc20 100644 --- a/compiler/rustc_ast_lowering/src/format.rs +++ b/compiler/rustc_ast_lowering/src/format.rs @@ -6,8 +6,7 @@ use rustc_ast::*; use rustc_data_structures::fx::FxIndexMap; use rustc_hir as hir; use rustc_session::config::FmtDebug; -use rustc_span::symbol::{Ident, kw}; -use rustc_span::{Span, Symbol, sym}; +use rustc_span::{Ident, Span, Symbol, kw, sym}; use super::LoweringContext; diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index ad4410c57dd..2cf6a2a909b 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -10,8 +10,7 @@ use rustc_index::{IndexSlice, IndexVec}; use rustc_middle::span_bug; use rustc_middle::ty::{ResolverAstLowering, TyCtxt}; use rustc_span::edit_distance::find_best_match_for_name; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{DesugaringKind, Span, Symbol}; +use rustc_span::{DesugaringKind, Ident, Span, Symbol, kw, sym}; use rustc_target::spec::abi; use smallvec::{SmallVec, smallvec}; use thin_vec::ThinVec; @@ -1172,9 +1171,7 @@ impl<'hir> LoweringContext<'_, 'hir> { // we can keep the same name for the parameter. // This lets rustdoc render it correctly in documentation. hir::PatKind::Binding(_, _, ident, _) => (ident, false), - hir::PatKind::Wild => { - (Ident::with_dummy_span(rustc_span::symbol::kw::Underscore), false) - } + hir::PatKind::Wild => (Ident::with_dummy_span(rustc_span::kw::Underscore), false), _ => { // Replace the ident for bindings that aren't simple. let name = format!("__arg{index}"); diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index 41fa4c13442..8438a421226 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -58,8 +58,7 @@ use rustc_macros::extension; use rustc_middle::span_bug; use rustc_middle::ty::{ResolverAstLowering, TyCtxt}; use rustc_session::parse::{add_feature_diagnostics, feature_err}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, DesugaringKind, Span}; +use rustc_span::{DUMMY_SP, DesugaringKind, Ident, Span, Symbol, kw, sym}; use smallvec::{SmallVec, smallvec}; use thin_vec::ThinVec; use tracing::{debug, instrument, trace}; diff --git a/compiler/rustc_ast_lowering/src/pat.rs b/compiler/rustc_ast_lowering/src/pat.rs index 60660548590..a4ab2561b72 100644 --- a/compiler/rustc_ast_lowering/src/pat.rs +++ b/compiler/rustc_ast_lowering/src/pat.rs @@ -3,9 +3,8 @@ use rustc_ast::*; use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_hir as hir; use rustc_hir::def::Res; -use rustc_span::Span; use rustc_span::source_map::Spanned; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, Span}; use super::errors::{ ArbitraryExpressionInPattern, ExtraDoubleDot, MisplacedDoubleDot, SubTupleBinding, diff --git a/compiler/rustc_ast_lowering/src/path.rs b/compiler/rustc_ast_lowering/src/path.rs index 133793e26ea..043144a5464 100644 --- a/compiler/rustc_ast_lowering/src/path.rs +++ b/compiler/rustc_ast_lowering/src/path.rs @@ -6,8 +6,7 @@ use rustc_hir::def::{DefKind, PartialRes, Res}; use rustc_hir::def_id::DefId; use rustc_middle::span_bug; use rustc_session::parse::add_feature_diagnostics; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{BytePos, DUMMY_SP, DesugaringKind, Span, Symbol}; +use rustc_span::{BytePos, DUMMY_SP, DesugaringKind, Ident, Span, Symbol, kw, sym}; use smallvec::{SmallVec, smallvec}; use tracing::{debug, instrument}; diff --git a/compiler/rustc_ast_passes/src/ast_validation.rs b/compiler/rustc_ast_passes/src/ast_validation.rs index 3f071f5ecb5..d1cf9c53d66 100644 --- a/compiler/rustc_ast_passes/src/ast_validation.rs +++ b/compiler/rustc_ast_passes/src/ast_validation.rs @@ -34,8 +34,7 @@ use rustc_session::lint::builtin::{ PATTERNS_IN_FNS_WITHOUT_BODY, }; use rustc_session::lint::{BuiltinLintDiag, LintBuffer}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, kw, sym}; +use rustc_span::{Ident, Span, kw, sym}; use rustc_target::spec::abi; use thin_vec::thin_vec; diff --git a/compiler/rustc_ast_passes/src/errors.rs b/compiler/rustc_ast_passes/src/errors.rs index 9b600e3ee92..0eb2043eaa3 100644 --- a/compiler/rustc_ast_passes/src/errors.rs +++ b/compiler/rustc_ast_passes/src/errors.rs @@ -4,8 +4,7 @@ use rustc_ast::ParamKindOrd; use rustc_errors::codes::*; use rustc_errors::{Applicability, Diag, EmissionGuarantee, SubdiagMessageOp, Subdiagnostic}; use rustc_macros::{Diagnostic, Subdiagnostic}; -use rustc_span::symbol::Ident; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol}; use crate::fluent_generated as fluent; diff --git a/compiler/rustc_ast_passes/src/feature_gate.rs b/compiler/rustc_ast_passes/src/feature_gate.rs index c10b3296497..f885b20c761 100644 --- a/compiler/rustc_ast_passes/src/feature_gate.rs +++ b/compiler/rustc_ast_passes/src/feature_gate.rs @@ -4,9 +4,8 @@ use rustc_ast::{NodeId, PatKind, attr, token}; use rustc_feature::{AttributeGate, BUILTIN_ATTRIBUTE_MAP, BuiltinAttribute, Features, GateIssue}; use rustc_session::Session; use rustc_session::parse::{feature_err, feature_err_issue, feature_warn}; -use rustc_span::Span; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use rustc_target::spec::abi; use thin_vec::ThinVec; diff --git a/compiler/rustc_ast_pretty/src/pprust/state.rs b/compiler/rustc_ast_pretty/src/pprust/state.rs index cbb92c8c30f..70b72e88d7f 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state.rs @@ -24,8 +24,8 @@ use rustc_ast::{ use rustc_data_structures::sync::Lrc; use rustc_span::edition::Edition; use rustc_span::source_map::{SourceMap, Spanned}; -use rustc_span::symbol::{Ident, IdentPrinter, Symbol, kw, sym}; -use rustc_span::{BytePos, CharPos, DUMMY_SP, FileName, Pos, Span}; +use rustc_span::symbol::IdentPrinter; +use rustc_span::{BytePos, CharPos, DUMMY_SP, FileName, Ident, Pos, Span, Symbol, kw, sym}; use thin_vec::ThinVec; use crate::pp::Breaks::{Consistent, Inconsistent}; diff --git a/compiler/rustc_ast_pretty/src/pprust/state/item.rs b/compiler/rustc_ast_pretty/src/pprust/state/item.rs index 1ae765c0130..897c275d850 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state/item.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state/item.rs @@ -3,7 +3,7 @@ use itertools::{Itertools, Position}; use rustc_ast as ast; use rustc_ast::ModKind; use rustc_ast::ptr::P; -use rustc_span::symbol::Ident; +use rustc_span::Ident; use crate::pp::Breaks::Inconsistent; use crate::pprust::state::fixup::FixupContext; diff --git a/compiler/rustc_ast_pretty/src/pprust/tests.rs b/compiler/rustc_ast_pretty/src/pprust/tests.rs index 01e5dff34b7..4c42dd1f202 100644 --- a/compiler/rustc_ast_pretty/src/pprust/tests.rs +++ b/compiler/rustc_ast_pretty/src/pprust/tests.rs @@ -1,6 +1,5 @@ use rustc_ast as ast; -use rustc_span::symbol::Ident; -use rustc_span::{DUMMY_SP, create_default_session_globals_then}; +use rustc_span::{DUMMY_SP, Ident, create_default_session_globals_then}; use thin_vec::ThinVec; use super::*; diff --git a/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs index b9f841800ab..471168ed4f5 100644 --- a/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs +++ b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs @@ -1,6 +1,6 @@ use rustc_ast::attr::{AttributeExt, filter_by_name}; use rustc_session::Session; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use crate::session_diagnostics; diff --git a/compiler/rustc_attr_parsing/src/attributes/cfg.rs b/compiler/rustc_attr_parsing/src/attributes/cfg.rs index 8cf8e86100f..bb9aaaa2fea 100644 --- a/compiler/rustc_attr_parsing/src/attributes/cfg.rs +++ b/compiler/rustc_attr_parsing/src/attributes/cfg.rs @@ -9,8 +9,7 @@ use rustc_session::config::ExpectedValues; use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::UNEXPECTED_CFGS; use rustc_session::parse::feature_err; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, kw, sym}; +use rustc_span::{Span, Symbol, kw, sym}; use crate::util::UnsupportedLiteralReason; use crate::{fluent_generated, parse_version, session_diagnostics}; diff --git a/compiler/rustc_attr_parsing/src/attributes/confusables.rs b/compiler/rustc_attr_parsing/src/attributes/confusables.rs index 672fcf05eda..2ced759fd88 100644 --- a/compiler/rustc_attr_parsing/src/attributes/confusables.rs +++ b/compiler/rustc_attr_parsing/src/attributes/confusables.rs @@ -2,7 +2,7 @@ use rustc_ast::MetaItemInner; use rustc_ast::attr::AttributeExt; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; /// Read the content of a `rustc_confusables` attribute, and return the list of candidate names. pub fn parse_confusables(attr: &impl AttributeExt) -> Option> { diff --git a/compiler/rustc_attr_parsing/src/attributes/deprecation.rs b/compiler/rustc_attr_parsing/src/attributes/deprecation.rs index 2f9872cc311..d7415a7198f 100644 --- a/compiler/rustc_attr_parsing/src/attributes/deprecation.rs +++ b/compiler/rustc_attr_parsing/src/attributes/deprecation.rs @@ -6,8 +6,7 @@ use rustc_ast_pretty::pprust; use rustc_attr_data_structures::{DeprecatedSince, Deprecation}; use rustc_feature::Features; use rustc_session::Session; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use super::util::UnsupportedLiteralReason; use crate::{parse_version, session_diagnostics}; diff --git a/compiler/rustc_attr_parsing/src/attributes/repr.rs b/compiler/rustc_attr_parsing/src/attributes/repr.rs index 008edfe6366..124f0aa3eff 100644 --- a/compiler/rustc_attr_parsing/src/attributes/repr.rs +++ b/compiler/rustc_attr_parsing/src/attributes/repr.rs @@ -6,7 +6,7 @@ use rustc_ast::{self as ast, MetaItemKind}; use rustc_attr_data_structures::IntType; use rustc_attr_data_structures::ReprAttr::*; use rustc_session::Session; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use crate::ReprAttr; use crate::session_diagnostics::{self, IncorrectReprFormatGenericCause}; diff --git a/compiler/rustc_attr_parsing/src/attributes/stability.rs b/compiler/rustc_attr_parsing/src/attributes/stability.rs index 0d5bd105f05..89937e1c593 100644 --- a/compiler/rustc_attr_parsing/src/attributes/stability.rs +++ b/compiler/rustc_attr_parsing/src/attributes/stability.rs @@ -11,8 +11,7 @@ use rustc_attr_data_structures::{ }; use rustc_errors::ErrorGuaranteed; use rustc_session::Session; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use crate::attributes::util::UnsupportedLiteralReason; use crate::{parse_version, session_diagnostics}; diff --git a/compiler/rustc_attr_parsing/src/attributes/util.rs b/compiler/rustc_attr_parsing/src/attributes/util.rs index c59d2fec1dc..e36f7dfff5a 100644 --- a/compiler/rustc_attr_parsing/src/attributes/util.rs +++ b/compiler/rustc_attr_parsing/src/attributes/util.rs @@ -1,7 +1,7 @@ use rustc_ast::attr::{AttributeExt, first_attr_value_str_by_name}; use rustc_attr_data_structures::RustcVersion; use rustc_feature::is_builtin_attr_name; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; pub(crate) enum UnsupportedLiteralReason { Generic, diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 8dcc5324fdf..8e5944d6cf4 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -34,8 +34,7 @@ use rustc_middle::util::CallKind; use rustc_mir_dataflow::move_paths::{InitKind, MoveOutIndex, MovePathIndex}; use rustc_span::def_id::{DefId, LocalDefId}; use rustc_span::hygiene::DesugaringKind; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{BytePos, Span, Symbol}; +use rustc_span::{BytePos, Ident, Span, Symbol, kw, sym}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::error_reporting::traits::FindExprBySpan; use rustc_trait_selection::infer::InferCtxtExt; diff --git a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs index 45a8ef0adb6..22f7f708419 100644 --- a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs +++ b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs @@ -17,8 +17,7 @@ use rustc_middle::mir::{ }; use rustc_middle::ty::adjustment::PointerCoercion; use rustc_middle::ty::{self, RegionVid, Ty, TyCtxt}; -use rustc_span::symbol::{Symbol, kw}; -use rustc_span::{DesugaringKind, Span, sym}; +use rustc_span::{DesugaringKind, Span, Symbol, kw, sym}; use rustc_trait_selection::error_reporting::traits::FindExprBySpan; use tracing::{debug, instrument}; diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index 92afad62aa4..67be6ecdeb3 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -20,8 +20,7 @@ use rustc_middle::util::{CallDesugaringKind, call_kind}; use rustc_mir_dataflow::move_paths::{InitLocation, LookupResult}; use rustc_span::def_id::LocalDefId; use rustc_span::source_map::Spanned; -use rustc_span::symbol::sym; -use rustc_span::{DUMMY_SP, Span, Symbol}; +use rustc_span::{DUMMY_SP, Span, Symbol, sym}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::{ diff --git a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs index 4938875f7c4..2484f817a06 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs @@ -15,8 +15,7 @@ use rustc_middle::mir::{ PlaceRef, ProjectionElem, }; use rustc_middle::ty::{self, InstanceKind, Ty, TyCtxt, Upcast}; -use rustc_span::symbol::{Symbol, kw}; -use rustc_span::{BytePos, DesugaringKind, Span, sym}; +use rustc_span::{BytePos, DesugaringKind, Span, Symbol, kw, sym}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits; diff --git a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs index 9bf6767313f..4e6d349d761 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs @@ -15,8 +15,7 @@ use rustc_middle::bug; use rustc_middle::hir::place::PlaceBase; use rustc_middle::mir::{ConstraintCategory, ReturnConstraint}; use rustc_middle::ty::{self, GenericArgs, Region, RegionVid, Ty, TyCtxt, TypeVisitor}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, kw}; +use rustc_span::{Ident, Span, kw}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::error_reporting::infer::nice_region_error::{ self, HirTraitObjectVisitor, NiceRegionError, TraitObjectVisitor, find_anon_type, diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index 5dfc2658d2a..34680c2d0af 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -11,8 +11,7 @@ use rustc_hir::def::{DefKind, Res}; use rustc_middle::ty::print::RegionHighlightMode; use rustc_middle::ty::{self, GenericArgKind, GenericArgsRef, RegionVid, Ty}; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::{Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, Symbol, kw, sym}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use tracing::{debug, instrument}; diff --git a/compiler/rustc_borrowck/src/diagnostics/var_name.rs b/compiler/rustc_borrowck/src/diagnostics/var_name.rs index bda70241267..191c0444c74 100644 --- a/compiler/rustc_borrowck/src/diagnostics/var_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/var_name.rs @@ -1,8 +1,7 @@ use rustc_index::IndexSlice; use rustc_middle::mir::{Body, Local}; use rustc_middle::ty::{self, RegionVid, TyCtxt}; -use rustc_span::Span; -use rustc_span::symbol::Symbol; +use rustc_span::{Span, Symbol}; use tracing::debug; use crate::region_infer::RegionInferenceContext; diff --git a/compiler/rustc_borrowck/src/nll.rs b/compiler/rustc_borrowck/src/nll.rs index d7ea8e1bcc2..727d56b8d37 100644 --- a/compiler/rustc_borrowck/src/nll.rs +++ b/compiler/rustc_borrowck/src/nll.rs @@ -21,7 +21,7 @@ use rustc_mir_dataflow::impls::MaybeInitializedPlaces; use rustc_mir_dataflow::move_paths::MoveData; use rustc_mir_dataflow::points::DenseLocationMap; use rustc_session::config::MirIncludeSpans; -use rustc_span::symbol::sym; +use rustc_span::sym; use tracing::{debug, instrument}; use crate::borrow_set::BorrowSet; diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 90d327b0ad2..ce9780aaaf1 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -40,8 +40,7 @@ use rustc_mir_dataflow::move_paths::MoveData; use rustc_mir_dataflow::points::DenseLocationMap; use rustc_span::def_id::CRATE_DEF_ID; use rustc_span::source_map::Spanned; -use rustc_span::symbol::sym; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, sym}; use rustc_trait_selection::traits::query::type_op::custom::{ CustomTypeOp, scrape_region_constraints, }; diff --git a/compiler/rustc_borrowck/src/type_check/relate_tys.rs b/compiler/rustc_borrowck/src/type_check/relate_tys.rs index 752b2bf1a24..59e2eee41d3 100644 --- a/compiler/rustc_borrowck/src/type_check/relate_tys.rs +++ b/compiler/rustc_borrowck/src/type_check/relate_tys.rs @@ -13,8 +13,7 @@ use rustc_middle::traits::query::NoSolution; use rustc_middle::ty::fold::FnMutDelegate; use rustc_middle::ty::relate::combine::{super_combine_consts, super_combine_tys}; use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt}; -use rustc_span::symbol::sym; -use rustc_span::{Span, Symbol}; +use rustc_span::{Span, Symbol, sym}; use tracing::{debug, instrument}; use crate::constraints::OutlivesConstraint; diff --git a/compiler/rustc_borrowck/src/universal_regions.rs b/compiler/rustc_borrowck/src/universal_regions.rs index bb64d646ff3..6b7bf718766 100644 --- a/compiler/rustc_borrowck/src/universal_regions.rs +++ b/compiler/rustc_borrowck/src/universal_regions.rs @@ -33,8 +33,7 @@ use rustc_middle::ty::{ TyCtxt, TypeVisitableExt, }; use rustc_middle::{bug, span_bug}; -use rustc_span::ErrorGuaranteed; -use rustc_span::symbol::{kw, sym}; +use rustc_span::{ErrorGuaranteed, kw, sym}; use tracing::{debug, instrument}; use crate::BorrowckInferCtxt; diff --git a/compiler/rustc_builtin_macros/src/alloc_error_handler.rs b/compiler/rustc_builtin_macros/src/alloc_error_handler.rs index 0caad997b9d..d2b4e1ca824 100644 --- a/compiler/rustc_builtin_macros/src/alloc_error_handler.rs +++ b/compiler/rustc_builtin_macros/src/alloc_error_handler.rs @@ -3,8 +3,7 @@ use rustc_ast::{ self as ast, Fn, FnHeader, FnSig, Generics, ItemKind, Safety, Stmt, StmtKind, TyKind, }; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, kw, sym}; +use rustc_span::{Ident, Span, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/asm.rs b/compiler/rustc_builtin_macros/src/asm.rs index 14ac3cd74e8..cce70fb2ea4 100644 --- a/compiler/rustc_builtin_macros/src/asm.rs +++ b/compiler/rustc_builtin_macros/src/asm.rs @@ -10,8 +10,7 @@ use rustc_expand::base::*; use rustc_index::bit_set::GrowableBitSet; use rustc_parse::parser::Parser; use rustc_session::lint; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{ErrorGuaranteed, InnerSpan, Span}; +use rustc_span::{ErrorGuaranteed, Ident, InnerSpan, Span, Symbol, kw, sym}; use rustc_target::asm::InlineAsmArch; use smallvec::smallvec; use {rustc_ast as ast, rustc_parse_format as parse}; diff --git a/compiler/rustc_builtin_macros/src/assert.rs b/compiler/rustc_builtin_macros/src/assert.rs index 599b180f879..95b31c7e47a 100644 --- a/compiler/rustc_builtin_macros/src/assert.rs +++ b/compiler/rustc_builtin_macros/src/assert.rs @@ -8,8 +8,7 @@ use rustc_ast_pretty::pprust; use rustc_errors::PResult; use rustc_expand::base::{DummyResult, ExpandResult, ExtCtxt, MacEager, MacroExpanderResult}; use rustc_parse::parser::Parser; -use rustc_span::symbol::{Ident, Symbol, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, sym}; use thin_vec::thin_vec; use crate::edition_panic::use_panic_2021; diff --git a/compiler/rustc_builtin_macros/src/assert/context.rs b/compiler/rustc_builtin_macros/src/assert/context.rs index eb07975d8af..bb9dc651cec 100644 --- a/compiler/rustc_builtin_macros/src/assert/context.rs +++ b/compiler/rustc_builtin_macros/src/assert/context.rs @@ -8,8 +8,7 @@ use rustc_ast::{ use rustc_ast_pretty::pprust; use rustc_data_structures::fx::FxHashSet; use rustc_expand::base::ExtCtxt; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol, sym}; +use rustc_span::{Ident, Span, Symbol, sym}; use thin_vec::{ThinVec, thin_vec}; pub(super) struct Context<'cx, 'a> { diff --git a/compiler/rustc_builtin_macros/src/autodiff.rs b/compiler/rustc_builtin_macros/src/autodiff.rs index 66bb11ca522..8960cf6ab59 100644 --- a/compiler/rustc_builtin_macros/src/autodiff.rs +++ b/compiler/rustc_builtin_macros/src/autodiff.rs @@ -20,8 +20,7 @@ mod llvm_enzyme { PatKind, TyKind, }; use rustc_expand::base::{Annotatable, ExtCtxt}; - use rustc_span::symbol::{Ident, kw, sym}; - use rustc_span::{Span, Symbol}; + use rustc_span::{Ident, Span, Symbol, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use tracing::{debug, trace}; @@ -35,7 +34,7 @@ mod llvm_enzyme { FnRetTy::Default(_) => false, } } - fn first_ident(x: &MetaItemInner) -> rustc_span::symbol::Ident { + fn first_ident(x: &MetaItemInner) -> rustc_span::Ident { let segments = &x.meta_item().unwrap().path.segments; assert!(segments.len() == 1); segments[0].ident diff --git a/compiler/rustc_builtin_macros/src/cfg_accessible.rs b/compiler/rustc_builtin_macros/src/cfg_accessible.rs index 23578781a83..5f203dd5d11 100644 --- a/compiler/rustc_builtin_macros/src/cfg_accessible.rs +++ b/compiler/rustc_builtin_macros/src/cfg_accessible.rs @@ -4,8 +4,7 @@ use rustc_ast as ast; use rustc_expand::base::{Annotatable, ExpandResult, ExtCtxt, Indeterminate, MultiItemModifier}; use rustc_feature::AttributeTemplate; use rustc_parse::validate_attr; -use rustc_span::Span; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/cfg_eval.rs b/compiler/rustc_builtin_macros/src/cfg_eval.rs index d46a1bd3d31..53c61831b42 100644 --- a/compiler/rustc_builtin_macros/src/cfg_eval.rs +++ b/compiler/rustc_builtin_macros/src/cfg_eval.rs @@ -12,8 +12,7 @@ use rustc_expand::configure; use rustc_feature::Features; use rustc_parse::parser::{ForceCollect, Parser}; use rustc_session::Session; -use rustc_span::Span; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use smallvec::SmallVec; use tracing::instrument; diff --git a/compiler/rustc_builtin_macros/src/concat.rs b/compiler/rustc_builtin_macros/src/concat.rs index a28801f66dd..c200539e128 100644 --- a/compiler/rustc_builtin_macros/src/concat.rs +++ b/compiler/rustc_builtin_macros/src/concat.rs @@ -2,7 +2,7 @@ use rustc_ast::tokenstream::TokenStream; use rustc_ast::{ExprKind, LitKind, UnOp}; use rustc_expand::base::{DummyResult, ExpandResult, ExtCtxt, MacEager, MacroExpanderResult}; use rustc_session::errors::report_lit_error; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use crate::errors; use crate::util::get_exprs_from_tts; diff --git a/compiler/rustc_builtin_macros/src/concat_idents.rs b/compiler/rustc_builtin_macros/src/concat_idents.rs index b459cc3007d..208b499eb7a 100644 --- a/compiler/rustc_builtin_macros/src/concat_idents.rs +++ b/compiler/rustc_builtin_macros/src/concat_idents.rs @@ -3,8 +3,7 @@ use rustc_ast::token::{self, Token}; use rustc_ast::tokenstream::{TokenStream, TokenTree}; use rustc_ast::{AttrVec, DUMMY_NODE_ID, Expr, ExprKind, Path, Ty, TyKind}; use rustc_expand::base::{DummyResult, ExpandResult, ExtCtxt, MacResult, MacroExpanderResult}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol}; +use rustc_span::{Ident, Span, Symbol}; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/derive.rs b/compiler/rustc_builtin_macros/src/derive.rs index 60450d085f6..2653a9f48b9 100644 --- a/compiler/rustc_builtin_macros/src/derive.rs +++ b/compiler/rustc_builtin_macros/src/derive.rs @@ -6,8 +6,7 @@ use rustc_expand::base::{ use rustc_feature::AttributeTemplate; use rustc_parse::validate_attr; use rustc_session::Session; -use rustc_span::symbol::{Ident, sym}; -use rustc_span::{ErrorGuaranteed, Span}; +use rustc_span::{ErrorGuaranteed, Ident, Span, sym}; use crate::cfg_eval::cfg_eval; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/deriving/clone.rs b/compiler/rustc_builtin_macros/src/deriving/clone.rs index f79227d52a8..78f50ba8d29 100644 --- a/compiler/rustc_builtin_macros/src/deriving/clone.rs +++ b/compiler/rustc_builtin_macros/src/deriving/clone.rs @@ -1,8 +1,7 @@ use rustc_ast::{self as ast, Generics, ItemKind, MetaItem, VariantData}; use rustc_data_structures::fx::FxHashSet; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, kw, sym}; +use rustc_span::{Ident, Span, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use crate::deriving::generic::ty::*; diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs index bd6f4eb8d99..5790350203a 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs @@ -1,8 +1,7 @@ use rustc_ast::{self as ast, MetaItem}; use rustc_data_structures::fx::FxHashSet; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use thin_vec::{ThinVec, thin_vec}; use crate::deriving::generic::ty::*; diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs index 433cbfaa6cb..1ed44c20bc6 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs @@ -1,7 +1,6 @@ use rustc_ast::MetaItem; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, sym}; +use rustc_span::{Ident, Span, sym}; use thin_vec::thin_vec; use crate::deriving::generic::ty::*; diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs index ae1e5f4a219..4b93b3414c7 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs @@ -1,8 +1,7 @@ use rustc_ast::ptr::P; use rustc_ast::{BinOpKind, BorrowKind, Expr, ExprKind, MetaItem, Mutability}; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use thin_vec::thin_vec; use crate::deriving::generic::ty::*; diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs index 99a98325053..7958e037555 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs @@ -1,7 +1,6 @@ use rustc_ast::{ExprKind, ItemKind, MetaItem, PatKind}; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, sym}; +use rustc_span::{Ident, Span, sym}; use thin_vec::thin_vec; use crate::deriving::generic::ty::*; diff --git a/compiler/rustc_builtin_macros/src/deriving/coerce_pointee.rs b/compiler/rustc_builtin_macros/src/deriving/coerce_pointee.rs index b91d6ced123..49706db0e0b 100644 --- a/compiler/rustc_builtin_macros/src/deriving/coerce_pointee.rs +++ b/compiler/rustc_builtin_macros/src/deriving/coerce_pointee.rs @@ -10,8 +10,7 @@ use rustc_attr_parsing as attr; use rustc_data_structures::flat_map_in_place::FlatMapInPlace; use rustc_expand::base::{Annotatable, ExtCtxt}; use rustc_macros::Diagnostic; -use rustc_span::symbol::{Ident, sym}; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol, sym}; use thin_vec::{ThinVec, thin_vec}; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/deriving/debug.rs b/compiler/rustc_builtin_macros/src/deriving/debug.rs index 06a598cf3b0..eb01ca3941d 100644 --- a/compiler/rustc_builtin_macros/src/deriving/debug.rs +++ b/compiler/rustc_builtin_macros/src/deriving/debug.rs @@ -1,8 +1,7 @@ use rustc_ast::{self as ast, EnumDef, MetaItem}; use rustc_expand::base::{Annotatable, ExtCtxt}; use rustc_session::config::FmtDebug; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol, sym}; +use rustc_span::{Ident, Span, Symbol, sym}; use thin_vec::{ThinVec, thin_vec}; use crate::deriving::generic::ty::*; diff --git a/compiler/rustc_builtin_macros/src/deriving/decodable.rs b/compiler/rustc_builtin_macros/src/deriving/decodable.rs index 469092e7b1c..6348560496e 100644 --- a/compiler/rustc_builtin_macros/src/deriving/decodable.rs +++ b/compiler/rustc_builtin_macros/src/deriving/decodable.rs @@ -3,8 +3,7 @@ use rustc_ast::ptr::P; use rustc_ast::{self as ast, Expr, MetaItem, Mutability}; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol, sym}; +use rustc_span::{Ident, Span, Symbol, sym}; use thin_vec::{ThinVec, thin_vec}; use crate::deriving::generic::ty::*; diff --git a/compiler/rustc_builtin_macros/src/deriving/default.rs b/compiler/rustc_builtin_macros/src/deriving/default.rs index 6b1a6effad7..a7d9f608cbd 100644 --- a/compiler/rustc_builtin_macros/src/deriving/default.rs +++ b/compiler/rustc_builtin_macros/src/deriving/default.rs @@ -4,8 +4,7 @@ use rustc_ast as ast; use rustc_ast::visit::visit_opt; use rustc_ast::{EnumDef, VariantData, attr}; use rustc_expand::base::{Annotatable, DummyResult, ExtCtxt}; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{ErrorGuaranteed, Span}; +use rustc_span::{ErrorGuaranteed, Ident, Span, kw, sym}; use smallvec::SmallVec; use thin_vec::{ThinVec, thin_vec}; diff --git a/compiler/rustc_builtin_macros/src/deriving/encodable.rs b/compiler/rustc_builtin_macros/src/deriving/encodable.rs index 5c7583f2a77..20aacb2caca 100644 --- a/compiler/rustc_builtin_macros/src/deriving/encodable.rs +++ b/compiler/rustc_builtin_macros/src/deriving/encodable.rs @@ -87,8 +87,7 @@ use rustc_ast::{AttrVec, ExprKind, MetaItem, Mutability}; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol, sym}; +use rustc_span::{Ident, Span, Symbol, sym}; use thin_vec::{ThinVec, thin_vec}; use crate::deriving::generic::ty::*; diff --git a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs index 1c5ff6c9ef2..f0a5e44e066 100644 --- a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs +++ b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs @@ -187,8 +187,7 @@ use rustc_ast::{ }; use rustc_attr_parsing as attr; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use ty::{Bounds, Path, Ref, Self_, Ty}; diff --git a/compiler/rustc_builtin_macros/src/deriving/generic/ty.rs b/compiler/rustc_builtin_macros/src/deriving/generic/ty.rs index b118cbfbd91..af6dc62db7a 100644 --- a/compiler/rustc_builtin_macros/src/deriving/generic/ty.rs +++ b/compiler/rustc_builtin_macros/src/deriving/generic/ty.rs @@ -6,8 +6,7 @@ use rustc_ast::ptr::P; use rustc_ast::{self as ast, Expr, GenericArg, GenericParamKind, Generics, SelfKind}; use rustc_expand::base::ExtCtxt; use rustc_span::source_map::respan; -use rustc_span::symbol::{Ident, Symbol, kw}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw}; use thin_vec::ThinVec; /// A path, e.g., `::std::option::Option::` (global). Has support diff --git a/compiler/rustc_builtin_macros/src/deriving/hash.rs b/compiler/rustc_builtin_macros/src/deriving/hash.rs index 2d1f5b70f77..6e6dbe19e4d 100644 --- a/compiler/rustc_builtin_macros/src/deriving/hash.rs +++ b/compiler/rustc_builtin_macros/src/deriving/hash.rs @@ -1,7 +1,6 @@ use rustc_ast::{MetaItem, Mutability}; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use thin_vec::thin_vec; use crate::deriving::generic::ty::*; diff --git a/compiler/rustc_builtin_macros/src/deriving/mod.rs b/compiler/rustc_builtin_macros/src/deriving/mod.rs index 681fbd1651d..ec058b41313 100644 --- a/compiler/rustc_builtin_macros/src/deriving/mod.rs +++ b/compiler/rustc_builtin_macros/src/deriving/mod.rs @@ -4,8 +4,7 @@ use rustc_ast as ast; use rustc_ast::ptr::P; use rustc_ast::{GenericArg, MetaItem}; use rustc_expand::base::{Annotatable, ExpandResult, ExtCtxt, MultiItemModifier}; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use thin_vec::{ThinVec, thin_vec}; macro path_local($x:ident) { diff --git a/compiler/rustc_builtin_macros/src/edition_panic.rs b/compiler/rustc_builtin_macros/src/edition_panic.rs index c4164a7db9a..b39c9861fd6 100644 --- a/compiler/rustc_builtin_macros/src/edition_panic.rs +++ b/compiler/rustc_builtin_macros/src/edition_panic.rs @@ -3,9 +3,8 @@ use rustc_ast::token::Delimiter; use rustc_ast::tokenstream::{DelimSpan, TokenStream}; use rustc_ast::*; use rustc_expand::base::*; -use rustc_span::Span; use rustc_span::edition::Edition; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; /// This expands to either /// - `$crate::panic::panic_2015!(...)` or diff --git a/compiler/rustc_builtin_macros/src/env.rs b/compiler/rustc_builtin_macros/src/env.rs index 43e2bf1796f..8831261759c 100644 --- a/compiler/rustc_builtin_macros/src/env.rs +++ b/compiler/rustc_builtin_macros/src/env.rs @@ -10,8 +10,7 @@ use rustc_ast::token::{self, LitKind}; use rustc_ast::tokenstream::TokenStream; use rustc_ast::{AstDeref, ExprKind, GenericArg, Mutability}; use rustc_expand::base::{DummyResult, ExpandResult, ExtCtxt, MacEager, MacroExpanderResult}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; +use rustc_span::{Ident, Span, Symbol, kw, sym}; use thin_vec::thin_vec; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/errors.rs b/compiler/rustc_builtin_macros/src/errors.rs index c9bd3371e55..b3198e7743d 100644 --- a/compiler/rustc_builtin_macros/src/errors.rs +++ b/compiler/rustc_builtin_macros/src/errors.rs @@ -4,8 +4,7 @@ use rustc_errors::{ SubdiagMessageOp, Subdiagnostic, }; use rustc_macros::{Diagnostic, Subdiagnostic}; -use rustc_span::symbol::Ident; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol}; #[derive(Diagnostic)] #[diag(builtin_macros_requires_cfg_pattern)] diff --git a/compiler/rustc_builtin_macros/src/format.rs b/compiler/rustc_builtin_macros/src/format.rs index 32730ac3867..73d762d21e5 100644 --- a/compiler/rustc_builtin_macros/src/format.rs +++ b/compiler/rustc_builtin_macros/src/format.rs @@ -13,8 +13,7 @@ use rustc_expand::base::*; use rustc_lint_defs::builtin::NAMED_ARGUMENTS_USED_POSITIONALLY; use rustc_lint_defs::{BufferedEarlyLint, BuiltinLintDiag, LintId}; use rustc_parse_format as parse; -use rustc_span::symbol::{Ident, Symbol}; -use rustc_span::{BytePos, ErrorGuaranteed, InnerSpan, Span}; +use rustc_span::{BytePos, ErrorGuaranteed, Ident, InnerSpan, Span, Symbol}; use crate::errors; use crate::util::expr_to_spanned_string; diff --git a/compiler/rustc_builtin_macros/src/global_allocator.rs b/compiler/rustc_builtin_macros/src/global_allocator.rs index b4b18409a18..8388e9dcafb 100644 --- a/compiler/rustc_builtin_macros/src/global_allocator.rs +++ b/compiler/rustc_builtin_macros/src/global_allocator.rs @@ -7,8 +7,7 @@ use rustc_ast::{ Stmt, StmtKind, Ty, TyKind, }; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; +use rustc_span::{Ident, Span, Symbol, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/lib.rs b/compiler/rustc_builtin_macros/src/lib.rs index cc4a974e757..6071d36f8eb 100644 --- a/compiler/rustc_builtin_macros/src/lib.rs +++ b/compiler/rustc_builtin_macros/src/lib.rs @@ -24,7 +24,7 @@ extern crate proc_macro; use rustc_expand::base::{MacroExpanderFn, ResolverExpand, SyntaxExtensionKind}; use rustc_expand::proc_macro::BangProcMacro; -use rustc_span::symbol::sym; +use rustc_span::sym; use crate::deriving::*; diff --git a/compiler/rustc_builtin_macros/src/proc_macro_harness.rs b/compiler/rustc_builtin_macros/src/proc_macro_harness.rs index 707c36d5046..dee185ff0c9 100644 --- a/compiler/rustc_builtin_macros/src/proc_macro_harness.rs +++ b/compiler/rustc_builtin_macros/src/proc_macro_harness.rs @@ -11,8 +11,7 @@ use rustc_feature::Features; use rustc_session::Session; use rustc_span::hygiene::AstPass; use rustc_span::source_map::SourceMap; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use smallvec::smallvec; use thin_vec::{ThinVec, thin_vec}; diff --git a/compiler/rustc_builtin_macros/src/source_util.rs b/compiler/rustc_builtin_macros/src/source_util.rs index 946fbe918e6..123b96f6bca 100644 --- a/compiler/rustc_builtin_macros/src/source_util.rs +++ b/compiler/rustc_builtin_macros/src/source_util.rs @@ -16,8 +16,7 @@ use rustc_parse::parser::{ForceCollect, Parser}; use rustc_parse::{new_parser_from_file, unwrap_or_emit_fatal}; use rustc_session::lint::builtin::INCOMPLETE_INCLUDE; use rustc_span::source_map::SourceMap; -use rustc_span::symbol::Symbol; -use rustc_span::{Pos, Span}; +use rustc_span::{Pos, Span, Symbol}; use smallvec::SmallVec; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/standard_library_imports.rs b/compiler/rustc_builtin_macros/src/standard_library_imports.rs index a3fc53344ab..1a3f4d2d449 100644 --- a/compiler/rustc_builtin_macros/src/standard_library_imports.rs +++ b/compiler/rustc_builtin_macros/src/standard_library_imports.rs @@ -3,10 +3,9 @@ use rustc_expand::base::{ExtCtxt, ResolverExpand}; use rustc_expand::expand::ExpansionConfig; use rustc_feature::Features; use rustc_session::Session; -use rustc_span::DUMMY_SP; use rustc_span::edition::Edition::*; use rustc_span::hygiene::AstPass; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; +use rustc_span::{DUMMY_SP, Ident, Symbol, kw, sym}; use thin_vec::thin_vec; pub fn inject( diff --git a/compiler/rustc_builtin_macros/src/test.rs b/compiler/rustc_builtin_macros/src/test.rs index 664e935ee14..3f73ddbdd29 100644 --- a/compiler/rustc_builtin_macros/src/test.rs +++ b/compiler/rustc_builtin_macros/src/test.rs @@ -9,8 +9,7 @@ use rustc_ast::{self as ast, GenericParamKind, attr}; use rustc_ast_pretty::pprust; use rustc_errors::{Applicability, Diag, Level}; use rustc_expand::base::*; -use rustc_span::symbol::{Ident, Symbol, sym}; -use rustc_span::{ErrorGuaranteed, FileNameDisplayPreference, Span}; +use rustc_span::{ErrorGuaranteed, FileNameDisplayPreference, Ident, Span, Symbol, sym}; use thin_vec::{ThinVec, thin_vec}; use tracing::debug; diff --git a/compiler/rustc_builtin_macros/src/test_harness.rs b/compiler/rustc_builtin_macros/src/test_harness.rs index e7ff65e08f9..46446598943 100644 --- a/compiler/rustc_builtin_macros/src/test_harness.rs +++ b/compiler/rustc_builtin_macros/src/test_harness.rs @@ -16,8 +16,7 @@ use rustc_lint_defs::BuiltinLintDiag; use rustc_session::Session; use rustc_session::lint::builtin::UNNAMEABLE_TEST_ITEMS; use rustc_span::hygiene::{AstPass, SyntaxContext, Transparency}; -use rustc_span::symbol::{Ident, Symbol, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, sym}; use rustc_target::spec::PanicStrategy; use smallvec::smallvec; use thin_vec::{ThinVec, thin_vec}; diff --git a/compiler/rustc_builtin_macros/src/trace_macros.rs b/compiler/rustc_builtin_macros/src/trace_macros.rs index e624d1da66b..670ddc0415f 100644 --- a/compiler/rustc_builtin_macros/src/trace_macros.rs +++ b/compiler/rustc_builtin_macros/src/trace_macros.rs @@ -1,7 +1,6 @@ use rustc_ast::tokenstream::{TokenStream, TokenTree}; use rustc_expand::base::{DummyResult, ExpandResult, ExtCtxt, MacroExpanderResult}; -use rustc_span::Span; -use rustc_span::symbol::kw; +use rustc_span::{Span, kw}; use crate::errors; diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs index 5f1b71eff6b..2e5813556aa 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs @@ -23,7 +23,7 @@ use rustc_middle::ty::GenericArgsRef; use rustc_middle::ty::layout::ValidityRequirement; use rustc_middle::ty::print::{with_no_trimmed_paths, with_no_visible_paths}; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; pub(crate) use self::llvm::codegen_llvm_intrinsic_call; use crate::cast::clif_intcast; diff --git a/compiler/rustc_codegen_cranelift/src/main_shim.rs b/compiler/rustc_codegen_cranelift/src/main_shim.rs index e480f21b9df..e6bf0d5b47e 100644 --- a/compiler/rustc_codegen_cranelift/src/main_shim.rs +++ b/compiler/rustc_codegen_cranelift/src/main_shim.rs @@ -2,8 +2,7 @@ use cranelift_frontend::{FunctionBuilder, FunctionBuilderContext}; use rustc_hir::LangItem; use rustc_middle::ty::{AssocKind, GenericArg}; use rustc_session::config::{EntryFnType, sigpipe}; -use rustc_span::DUMMY_SP; -use rustc_span::symbol::Ident; +use rustc_span::{DUMMY_SP, Ident}; use crate::prelude::*; diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs index 66ca4e2b473..45294ea35b1 100644 --- a/compiler/rustc_codegen_llvm/src/back/write.rs +++ b/compiler/rustc_codegen_llvm/src/back/write.rs @@ -25,8 +25,7 @@ use rustc_session::Session; use rustc_session::config::{ self, Lto, OutputType, Passes, RemapPathScopeComponents, SplitDwarfKind, SwitchWithOptPath, }; -use rustc_span::symbol::sym; -use rustc_span::{BytePos, InnerSpan, Pos, SpanData, SyntaxContext}; +use rustc_span::{BytePos, InnerSpan, Pos, SpanData, SyntaxContext, sym}; use rustc_target::spec::{CodeModel, RelocModel, SanitizerSet, SplitDebuginfo, TlsModel}; use tracing::debug; diff --git a/compiler/rustc_codegen_llvm/src/base.rs b/compiler/rustc_codegen_llvm/src/base.rs index f62310bd948..d05faf5577b 100644 --- a/compiler/rustc_codegen_llvm/src/base.rs +++ b/compiler/rustc_codegen_llvm/src/base.rs @@ -23,7 +23,7 @@ use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs; use rustc_middle::mir::mono::{Linkage, Visibility}; use rustc_middle::ty::TyCtxt; use rustc_session::config::DebugInfo; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use rustc_target::spec::SanitizerSet; use super::ModuleLlvm; diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs index aef8642f199..2c9f1cda13a 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs @@ -7,7 +7,7 @@ use rustc_hir::def_id::LOCAL_CRATE; use rustc_middle::bug; use rustc_middle::middle::debugger_visualizer::DebuggerVisualizerType; use rustc_session::config::{CrateType, DebugInfo}; -use rustc_span::symbol::sym; +use rustc_span::sym; use crate::builder::Builder; use crate::common::CodegenCx; diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs index 59275254022..40248a9009a 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs @@ -16,8 +16,7 @@ use rustc_middle::ty::{ self, AdtKind, CoroutineArgsExt, Instance, PolyExistentialTraitRef, Ty, TyCtxt, Visibility, }; use rustc_session::config::{self, DebugInfo, Lto}; -use rustc_span::symbol::Symbol; -use rustc_span::{DUMMY_SP, FileName, FileNameDisplayPreference, SourceFile, hygiene}; +use rustc_span::{DUMMY_SP, FileName, FileNameDisplayPreference, SourceFile, Symbol, hygiene}; use rustc_symbol_mangling::typeid_for_trait_ref; use rustc_target::spec::DebuginfoKind; use smallvec::smallvec; diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs index a8fdfbed592..fae698bea2a 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs @@ -19,9 +19,8 @@ use rustc_middle::ty::layout::{HasTypingEnv, LayoutOf}; use rustc_middle::ty::{self, GenericArgsRef, Instance, Ty, TypeVisitableExt}; use rustc_session::Session; use rustc_session::config::{self, DebugInfo}; -use rustc_span::symbol::Symbol; use rustc_span::{ - BytePos, Pos, SourceFile, SourceFileAndLine, SourceFileHash, Span, StableSourceFileId, + BytePos, Pos, SourceFile, SourceFileAndLine, SourceFileHash, Span, StableSourceFileId, Symbol, }; use smallvec::SmallVec; use tracing::debug; diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs index af8562db054..b079eb8fe0c 100644 --- a/compiler/rustc_codegen_llvm/src/lib.rs +++ b/compiler/rustc_codegen_llvm/src/lib.rs @@ -43,7 +43,7 @@ use rustc_middle::ty::TyCtxt; use rustc_middle::util::Providers; use rustc_session::Session; use rustc_session::config::{OptLevel, OutputFilenames, PrintKind, PrintRequest}; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; mod back { pub(crate) mod archive; diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs index 194438af88c..628c0b1c29c 100644 --- a/compiler/rustc_codegen_llvm/src/llvm_util.rs +++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs @@ -15,7 +15,7 @@ use rustc_fs_util::path_to_c_string; use rustc_middle::bug; use rustc_session::Session; use rustc_session::config::{PrintKind, PrintRequest}; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use rustc_target::spec::{MergeFunctions, PanicStrategy, SmallDataThresholdSupport}; use rustc_target::target_features::{RUSTC_SPECIAL_FEATURES, RUSTC_SPECIFIC_FEATURES}; diff --git a/compiler/rustc_codegen_ssa/src/assert_module_sources.rs b/compiler/rustc_codegen_ssa/src/assert_module_sources.rs index d1b1ff88b4a..ab65319e3d3 100644 --- a/compiler/rustc_codegen_ssa/src/assert_module_sources.rs +++ b/compiler/rustc_codegen_ssa/src/assert_module_sources.rs @@ -33,8 +33,7 @@ use rustc_hir::def_id::LOCAL_CRATE; use rustc_middle::mir::mono::CodegenUnitNameBuilder; use rustc_middle::ty::TyCtxt; use rustc_session::Session; -use rustc_span::symbol::sym; -use rustc_span::{Span, Symbol}; +use rustc_span::{Span, Symbol, sym}; use thin_vec::ThinVec; use tracing::debug; diff --git a/compiler/rustc_codegen_ssa/src/back/archive.rs b/compiler/rustc_codegen_ssa/src/back/archive.rs index d4836eb7a1d..d9eece1d8dc 100644 --- a/compiler/rustc_codegen_ssa/src/back/archive.rs +++ b/compiler/rustc_codegen_ssa/src/back/archive.rs @@ -14,7 +14,7 @@ use object::read::macho::FatArch; use rustc_data_structures::fx::FxIndexSet; use rustc_data_structures::memmap::Mmap; use rustc_session::Session; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use tempfile::Builder as TempFileBuilder; use tracing::trace; diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index dee6dd7b262..f4f6161ebbc 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -35,7 +35,7 @@ use rustc_session::utils::NativeLibKind; /// For all the linkers we support, and information they might /// need out of the shared crate context before we get rid of it. use rustc_session::{Session, filesearch}; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use rustc_target::spec::crt_objects::CrtObjects; use rustc_target::spec::{ Cc, LinkOutputKind, LinkSelfContainedComponents, LinkSelfContainedDefault, LinkerFeatures, diff --git a/compiler/rustc_codegen_ssa/src/back/linker.rs b/compiler/rustc_codegen_ssa/src/back/linker.rs index 301b22f2be4..8a2f3d73bc1 100644 --- a/compiler/rustc_codegen_ssa/src/back/linker.rs +++ b/compiler/rustc_codegen_ssa/src/back/linker.rs @@ -16,7 +16,7 @@ use rustc_middle::middle::exported_symbols::{ExportedSymbol, SymbolExportInfo, S use rustc_middle::ty::TyCtxt; use rustc_session::Session; use rustc_session::config::{self, CrateType, DebugInfo, LinkerPluginLto, Lto, OptLevel, Strip}; -use rustc_span::symbol::sym; +use rustc_span::sym; use rustc_target::spec::{Cc, LinkOutputKind, LinkerFlavor, Lld}; use tracing::{debug, warn}; diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs index 683defcafee..b40bb4ed5d2 100644 --- a/compiler/rustc_codegen_ssa/src/back/write.rs +++ b/compiler/rustc_codegen_ssa/src/back/write.rs @@ -33,8 +33,7 @@ use rustc_session::config::{ self, CrateType, Lto, OutFileName, OutputFilenames, OutputType, Passes, SwitchWithOptPath, }; use rustc_span::source_map::SourceMap; -use rustc_span::symbol::sym; -use rustc_span::{FileName, InnerSpan, Span, SpanData}; +use rustc_span::{FileName, InnerSpan, Span, SpanData, sym}; use rustc_target::spec::{MergeFunctions, SanitizerSet}; use tracing::debug; diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index dab035d3339..77e1fed720d 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -24,8 +24,7 @@ use rustc_middle::ty::layout::{HasTyCtxt, HasTypingEnv, LayoutOf, TyAndLayout}; use rustc_middle::ty::{self, Instance, Ty, TyCtxt}; use rustc_session::Session; use rustc_session::config::{self, CrateType, EntryFnType, OptLevel, OutputType}; -use rustc_span::symbol::sym; -use rustc_span::{DUMMY_SP, Symbol}; +use rustc_span::{DUMMY_SP, Symbol, sym}; use rustc_trait_selection::infer::at::ToTrace; use rustc_trait_selection::infer::{BoundRegionConversionTime, TyCtxtInferExt}; use rustc_trait_selection::traits::{ObligationCause, ObligationCtxt}; diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index b243f904aee..cdb72aba36f 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -16,8 +16,7 @@ use rustc_middle::query::Providers; use rustc_middle::ty::{self as ty, TyCtxt}; use rustc_session::parse::feature_err; use rustc_session::{Session, lint}; -use rustc_span::symbol::Ident; -use rustc_span::{Span, sym}; +use rustc_span::{Ident, Span, sym}; use rustc_target::spec::{SanitizerSet, abi}; use crate::errors; diff --git a/compiler/rustc_codegen_ssa/src/lib.rs b/compiler/rustc_codegen_ssa/src/lib.rs index 7dc8ab38a97..65c6067c740 100644 --- a/compiler/rustc_codegen_ssa/src/lib.rs +++ b/compiler/rustc_codegen_ssa/src/lib.rs @@ -42,7 +42,7 @@ use rustc_session::Session; use rustc_session::config::{CrateType, OutputFilenames, OutputType, RUST_CGU_EXT}; use rustc_session::cstore::{self, CrateSource}; use rustc_session::utils::NativeLibKind; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; pub mod assert_module_sources; pub mod back; diff --git a/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs b/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs index d4d7f16db55..843a996d2bf 100644 --- a/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs +++ b/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs @@ -10,8 +10,7 @@ use rustc_middle::ty::layout::{LayoutOf, TyAndLayout}; use rustc_middle::ty::{Instance, Ty}; use rustc_middle::{bug, mir, ty}; use rustc_session::config::DebugInfo; -use rustc_span::symbol::{Symbol, kw}; -use rustc_span::{BytePos, Span, hygiene}; +use rustc_span::{BytePos, Span, Symbol, hygiene, kw}; use super::operand::{OperandRef, OperandValue}; use super::place::{PlaceRef, PlaceValue}; diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs index c31e8aa7d31..7e80d014ea2 100644 --- a/compiler/rustc_codegen_ssa/src/target_features.rs +++ b/compiler/rustc_codegen_ssa/src/target_features.rs @@ -9,8 +9,7 @@ use rustc_middle::middle::codegen_fn_attrs::TargetFeature; use rustc_middle::query::Providers; use rustc_middle::ty::TyCtxt; use rustc_session::parse::feature_err; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use rustc_target::target_features; use crate::errors; diff --git a/compiler/rustc_codegen_ssa/src/traits/backend.rs b/compiler/rustc_codegen_ssa/src/traits/backend.rs index 4b17db2c49e..ebcf118b903 100644 --- a/compiler/rustc_codegen_ssa/src/traits/backend.rs +++ b/compiler/rustc_codegen_ssa/src/traits/backend.rs @@ -11,7 +11,7 @@ use rustc_middle::ty::TyCtxt; use rustc_middle::util::Providers; use rustc_session::Session; use rustc_session::config::{self, OutputFilenames, PrintRequest}; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use super::CodegenObject; use super::write::WriteBackendMethods; diff --git a/compiler/rustc_const_eval/src/check_consts/ops.rs b/compiler/rustc_const_eval/src/check_consts/ops.rs index 23f2aa4d029..afb7900c4b0 100644 --- a/compiler/rustc_const_eval/src/check_consts/ops.rs +++ b/compiler/rustc_const_eval/src/check_consts/ops.rs @@ -15,8 +15,7 @@ use rustc_middle::ty::{ suggest_constraining_type_param, }; use rustc_middle::util::{CallDesugaringKind, CallKind, call_kind}; -use rustc_span::symbol::sym; -use rustc_span::{BytePos, Pos, Span, Symbol}; +use rustc_span::{BytePos, Pos, Span, Symbol, sym}; use rustc_trait_selection::traits::SelectionContext; use tracing::debug; diff --git a/compiler/rustc_const_eval/src/check_consts/post_drop_elaboration.rs b/compiler/rustc_const_eval/src/check_consts/post_drop_elaboration.rs index 951e19b470b..16e142a85ee 100644 --- a/compiler/rustc_const_eval/src/check_consts/post_drop_elaboration.rs +++ b/compiler/rustc_const_eval/src/check_consts/post_drop_elaboration.rs @@ -1,7 +1,7 @@ use rustc_middle::mir::visit::Visitor; use rustc_middle::mir::{self, BasicBlock, Location}; use rustc_middle::ty::TyCtxt; -use rustc_span::symbol::sym; +use rustc_span::sym; use tracing::trace; use super::ConstCx; diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs index 23683851799..9c660ef0b18 100644 --- a/compiler/rustc_const_eval/src/const_eval/machine.rs +++ b/compiler/rustc_const_eval/src/const_eval/machine.rs @@ -13,8 +13,7 @@ use rustc_middle::query::TyCtxtAt; use rustc_middle::ty::layout::{HasTypingEnv, TyAndLayout}; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_middle::{bug, mir}; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use tracing::debug; use super::error::*; diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs index a79923e8555..1af8438534f 100644 --- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs +++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs @@ -11,7 +11,7 @@ use rustc_middle::mir::{self, BinOp, ConstValue, NonDivergingIntrinsic}; use rustc_middle::ty::layout::{LayoutOf as _, TyAndLayout, ValidityRequirement}; use rustc_middle::ty::{GenericArgsRef, Ty, TyCtxt}; use rustc_middle::{bug, ty}; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use tracing::trace; use super::memory::MemoryKind; diff --git a/compiler/rustc_const_eval/src/interpret/operator.rs b/compiler/rustc_const_eval/src/interpret/operator.rs index 8b7b78c7129..5fa632fc57a 100644 --- a/compiler/rustc_const_eval/src/interpret/operator.rs +++ b/compiler/rustc_const_eval/src/interpret/operator.rs @@ -6,7 +6,7 @@ use rustc_middle::mir::interpret::{InterpResult, PointerArithmetic, Scalar}; use rustc_middle::ty::layout::{LayoutOf, TyAndLayout}; use rustc_middle::ty::{self, FloatTy, ScalarInt, Ty}; use rustc_middle::{bug, mir, span_bug}; -use rustc_span::symbol::sym; +use rustc_span::sym; use tracing::trace; use super::{ImmTy, InterpCx, Machine, MemPlaceMeta, interp_ok, throw_ub}; diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 273eaf42d87..8e18b243906 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -26,7 +26,7 @@ use rustc_middle::mir::interpret::{ }; use rustc_middle::ty::layout::{LayoutCx, LayoutOf, TyAndLayout}; use rustc_middle::ty::{self, Ty}; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use tracing::trace; use super::machine::AllocMap; diff --git a/compiler/rustc_const_eval/src/util/caller_location.rs b/compiler/rustc_const_eval/src/util/caller_location.rs index 6593547cd23..6dd9447cf5a 100644 --- a/compiler/rustc_const_eval/src/util/caller_location.rs +++ b/compiler/rustc_const_eval/src/util/caller_location.rs @@ -3,7 +3,7 @@ use rustc_middle::query::TyCtxtAt; use rustc_middle::ty::layout::LayoutOf; use rustc_middle::ty::{self}; use rustc_middle::{bug, mir}; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use tracing::trace; use crate::const_eval::{CanAccessMutGlobal, CompileTimeInterpCx, mk_eval_cx_to_read_const_val}; diff --git a/compiler/rustc_driver_impl/src/pretty.rs b/compiler/rustc_driver_impl/src/pretty.rs index 5df960be307..5a1a873d4bd 100644 --- a/compiler/rustc_driver_impl/src/pretty.rs +++ b/compiler/rustc_driver_impl/src/pretty.rs @@ -11,8 +11,7 @@ use rustc_middle::ty::{self, TyCtxt}; use rustc_session::Session; use rustc_session::config::{OutFileName, PpHirMode, PpMode, PpSourceMode}; use rustc_smir::rustc_internal::pretty::write_smir_pretty; -use rustc_span::FileName; -use rustc_span::symbol::Ident; +use rustc_span::{FileName, Ident}; use tracing::debug; use {rustc_ast as ast, rustc_hir_pretty as pprust_hir}; diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs index 4352de3ad25..05b9cbfbc06 100644 --- a/compiler/rustc_errors/src/diagnostic.rs +++ b/compiler/rustc_errors/src/diagnostic.rs @@ -11,8 +11,7 @@ use rustc_error_messages::{FluentValue, fluent_value_from_str_list_sep_by_and}; use rustc_lint_defs::Applicability; use rustc_macros::{Decodable, Encodable}; use rustc_span::source_map::Spanned; -use rustc_span::symbol::Symbol; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, Symbol}; use tracing::debug; use crate::snippet::Style; diff --git a/compiler/rustc_errors/src/diagnostic_impls.rs b/compiler/rustc_errors/src/diagnostic_impls.rs index b4510371323..d179396398f 100644 --- a/compiler/rustc_errors/src/diagnostic_impls.rs +++ b/compiler/rustc_errors/src/diagnostic_impls.rs @@ -9,9 +9,8 @@ use rustc_abi::TargetDataLayoutErrors; use rustc_ast::util::parser::ExprPrecedence; use rustc_ast_pretty::pprust; use rustc_macros::Subdiagnostic; -use rustc_span::Span; use rustc_span::edition::Edition; -use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent, Symbol}; +use rustc_span::{Ident, MacroRulesNormalizedIdent, Span, Symbol}; use rustc_target::spec::{PanicStrategy, SplitDebuginfo, StackProtector, TargetTuple}; use rustc_type_ir::{ClosureKind, FloatTy}; use {rustc_ast as ast, rustc_hir as hir}; diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index 82d4847e27a..e6adbc0f0ac 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -25,8 +25,7 @@ use rustc_span::def_id::{CrateNum, DefId, LocalDefId}; use rustc_span::edition::Edition; use rustc_span::hygiene::{AstPass, ExpnData, ExpnKind, LocalExpnId, MacroKind}; use rustc_span::source_map::SourceMap; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, FileName, Span}; +use rustc_span::{DUMMY_SP, FileName, Ident, Span, Symbol, kw, sym}; use smallvec::{SmallVec, smallvec}; use thin_vec::ThinVec; diff --git a/compiler/rustc_expand/src/build.rs b/compiler/rustc_expand/src/build.rs index a673e2e3250..22bfda34cc0 100644 --- a/compiler/rustc_expand/src/build.rs +++ b/compiler/rustc_expand/src/build.rs @@ -4,8 +4,7 @@ use rustc_ast::{ self as ast, AttrVec, BlockCheckMode, Expr, LocalKind, MatchKind, PatKind, UnOp, attr, token, }; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use crate::base::ExtCtxt; diff --git a/compiler/rustc_expand/src/config.rs b/compiler/rustc_expand/src/config.rs index 8e500f538a7..91624c7554c 100644 --- a/compiler/rustc_expand/src/config.rs +++ b/compiler/rustc_expand/src/config.rs @@ -18,8 +18,7 @@ use rustc_lint_defs::BuiltinLintDiag; use rustc_parse::validate_attr; use rustc_session::Session; use rustc_session::parse::feature_err; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use thin_vec::ThinVec; use tracing::instrument; diff --git a/compiler/rustc_expand/src/errors.rs b/compiler/rustc_expand/src/errors.rs index 7bd7c305539..89bdc7b6dfa 100644 --- a/compiler/rustc_expand/src/errors.rs +++ b/compiler/rustc_expand/src/errors.rs @@ -4,8 +4,7 @@ use rustc_ast::ast; use rustc_errors::codes::*; use rustc_macros::{Diagnostic, Subdiagnostic}; use rustc_session::Limit; -use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent}; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, MacroRulesNormalizedIdent, Span, Symbol}; #[derive(Diagnostic)] #[diag(expand_expr_repeat_no_syntax_vars)] diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs index 575108a548f..ec497f6f8f1 100644 --- a/compiler/rustc_expand/src/expand.rs +++ b/compiler/rustc_expand/src/expand.rs @@ -29,8 +29,7 @@ use rustc_session::lint::builtin::{UNUSED_ATTRIBUTES, UNUSED_DOC_COMMENTS}; use rustc_session::parse::feature_err; use rustc_session::{Limit, Session}; use rustc_span::hygiene::SyntaxContext; -use rustc_span::symbol::{Ident, sym}; -use rustc_span::{ErrorGuaranteed, FileName, LocalExpnId, Span}; +use rustc_span::{ErrorGuaranteed, FileName, Ident, LocalExpnId, Span, sym}; use smallvec::SmallVec; use crate::base::*; diff --git a/compiler/rustc_expand/src/mbe.rs b/compiler/rustc_expand/src/mbe.rs index e5d098f63d6..4ff8c02bcdb 100644 --- a/compiler/rustc_expand/src/mbe.rs +++ b/compiler/rustc_expand/src/mbe.rs @@ -16,8 +16,7 @@ use metavar_expr::MetaVarExpr; use rustc_ast::token::{Delimiter, NonterminalKind, Token, TokenKind}; use rustc_ast::tokenstream::{DelimSpacing, DelimSpan}; use rustc_macros::{Decodable, Encodable}; -use rustc_span::Span; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, Span}; /// Contains the sub-token-trees of a "delimited" token tree such as `(a b c)`. /// The delimiters are not represented explicitly in the `tts` vector. diff --git a/compiler/rustc_expand/src/mbe/diagnostics.rs b/compiler/rustc_expand/src/mbe/diagnostics.rs index 77b8d228922..9f48835e15d 100644 --- a/compiler/rustc_expand/src/mbe/diagnostics.rs +++ b/compiler/rustc_expand/src/mbe/diagnostics.rs @@ -7,8 +7,7 @@ use rustc_macros::Subdiagnostic; use rustc_parse::parser::{Parser, Recovery, token_descr}; use rustc_session::parse::ParseSess; use rustc_span::source_map::SourceMap; -use rustc_span::symbol::Ident; -use rustc_span::{ErrorGuaranteed, Span}; +use rustc_span::{ErrorGuaranteed, Ident, Span}; use tracing::debug; use super::macro_rules::{NoopTracker, parser_from_cx}; diff --git a/compiler/rustc_expand/src/mbe/macro_check.rs b/compiler/rustc_expand/src/mbe/macro_check.rs index 1498b9cbd5d..729dec2bfbd 100644 --- a/compiler/rustc_expand/src/mbe/macro_check.rs +++ b/compiler/rustc_expand/src/mbe/macro_check.rs @@ -115,8 +115,7 @@ use rustc_lint_defs::BuiltinLintDiag; use rustc_session::lint::builtin::{META_VARIABLE_MISUSE, MISSING_FRAGMENT_SPECIFIER}; use rustc_session::parse::ParseSess; use rustc_span::edition::Edition; -use rustc_span::symbol::{MacroRulesNormalizedIdent, kw}; -use rustc_span::{ErrorGuaranteed, Span}; +use rustc_span::{ErrorGuaranteed, MacroRulesNormalizedIdent, Span, kw}; use smallvec::SmallVec; use super::quoted::VALID_FRAGMENT_NAMES_MSG; diff --git a/compiler/rustc_expand/src/mbe/macro_parser.rs b/compiler/rustc_expand/src/mbe/macro_parser.rs index 2a8dddc1e00..d709fd79281 100644 --- a/compiler/rustc_expand/src/mbe/macro_parser.rs +++ b/compiler/rustc_expand/src/mbe/macro_parser.rs @@ -82,8 +82,7 @@ use rustc_data_structures::fx::FxHashMap; use rustc_errors::ErrorGuaranteed; use rustc_lint_defs::pluralize; use rustc_parse::parser::{ParseNtResult, Parser, token_descr}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent}; +use rustc_span::{Ident, MacroRulesNormalizedIdent, Span}; use crate::mbe::macro_rules::Tracker; use crate::mbe::{KleeneOp, TokenTree}; diff --git a/compiler/rustc_expand/src/mbe/macro_rules.rs b/compiler/rustc_expand/src/mbe/macro_rules.rs index ae8e24007bd..7ac9f453bae 100644 --- a/compiler/rustc_expand/src/mbe/macro_rules.rs +++ b/compiler/rustc_expand/src/mbe/macro_rules.rs @@ -21,10 +21,9 @@ use rustc_lint_defs::builtin::{ use rustc_parse::parser::{ParseNtResult, Parser, Recovery}; use rustc_session::Session; use rustc_session::parse::ParseSess; -use rustc_span::Span; use rustc_span::edition::Edition; use rustc_span::hygiene::Transparency; -use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent, kw, sym}; +use rustc_span::{Ident, MacroRulesNormalizedIdent, Span, kw, sym}; use tracing::{debug, instrument, trace, trace_span}; use super::diagnostics; diff --git a/compiler/rustc_expand/src/mbe/metavar_expr.rs b/compiler/rustc_expand/src/mbe/metavar_expr.rs index 810a5d30c7e..da6e620a24f 100644 --- a/compiler/rustc_expand/src/mbe/metavar_expr.rs +++ b/compiler/rustc_expand/src/mbe/metavar_expr.rs @@ -5,8 +5,7 @@ use rustc_ast_pretty::pprust; use rustc_errors::{Applicability, PResult}; use rustc_macros::{Decodable, Encodable}; use rustc_session::parse::ParseSess; -use rustc_span::symbol::Ident; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol}; pub(crate) const RAW_IDENT_ERR: &str = "`${concat(..)}` currently does not support raw identifiers"; pub(crate) const UNSUPPORTED_CONCAT_ELEM_ERR: &str = "expected identifier or string literal"; diff --git a/compiler/rustc_expand/src/mbe/quoted.rs b/compiler/rustc_expand/src/mbe/quoted.rs index 36094707fac..1addfabea23 100644 --- a/compiler/rustc_expand/src/mbe/quoted.rs +++ b/compiler/rustc_expand/src/mbe/quoted.rs @@ -4,9 +4,8 @@ use rustc_ast_pretty::pprust; use rustc_feature::Features; use rustc_session::Session; use rustc_session::parse::feature_err; -use rustc_span::Span; use rustc_span::edition::Edition; -use rustc_span::symbol::{Ident, kw, sym}; +use rustc_span::{Ident, Span, kw, sym}; use crate::errors; use crate::mbe::macro_parser::count_metavar_decls; diff --git a/compiler/rustc_expand/src/mbe/transcribe.rs b/compiler/rustc_expand/src/mbe/transcribe.rs index b77d02e630a..4fb1eadd486 100644 --- a/compiler/rustc_expand/src/mbe/transcribe.rs +++ b/compiler/rustc_expand/src/mbe/transcribe.rs @@ -11,8 +11,9 @@ use rustc_parse::lexer::nfc_normalize; use rustc_parse::parser::ParseNtResult; use rustc_session::parse::{ParseSess, SymbolGallery}; use rustc_span::hygiene::{LocalExpnId, Transparency}; -use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent, sym}; -use rustc_span::{Span, Symbol, SyntaxContext, with_metavar_spans}; +use rustc_span::{ + Ident, MacroRulesNormalizedIdent, Span, Symbol, SyntaxContext, sym, with_metavar_spans, +}; use smallvec::{SmallVec, smallvec}; use crate::errors::{ diff --git a/compiler/rustc_expand/src/module.rs b/compiler/rustc_expand/src/module.rs index 85ea42e78ad..a001b1d3dc8 100644 --- a/compiler/rustc_expand/src/module.rs +++ b/compiler/rustc_expand/src/module.rs @@ -7,8 +7,7 @@ use rustc_errors::{Diag, ErrorGuaranteed}; use rustc_parse::{new_parser_from_file, unwrap_or_emit_fatal, validate_attr}; use rustc_session::Session; use rustc_session::parse::ParseSess; -use rustc_span::Span; -use rustc_span::symbol::{Ident, sym}; +use rustc_span::{Ident, Span, sym}; use thin_vec::ThinVec; use crate::base::ModuleData; diff --git a/compiler/rustc_expand/src/placeholders.rs b/compiler/rustc_expand/src/placeholders.rs index 9e459bd81a1..e969f2d4fb5 100644 --- a/compiler/rustc_expand/src/placeholders.rs +++ b/compiler/rustc_expand/src/placeholders.rs @@ -4,8 +4,7 @@ use rustc_ast::token::Delimiter; use rustc_ast::visit::AssocCtxt; use rustc_ast::{self as ast, Safety}; use rustc_data_structures::fx::FxHashMap; -use rustc_span::DUMMY_SP; -use rustc_span::symbol::Ident; +use rustc_span::{DUMMY_SP, Ident}; use smallvec::{SmallVec, smallvec}; use thin_vec::ThinVec; diff --git a/compiler/rustc_expand/src/proc_macro_server.rs b/compiler/rustc_expand/src/proc_macro_server.rs index 263df235b3e..0adff4eaf9d 100644 --- a/compiler/rustc_expand/src/proc_macro_server.rs +++ b/compiler/rustc_expand/src/proc_macro_server.rs @@ -18,8 +18,7 @@ use rustc_parse::parser::Parser; use rustc_parse::{new_parser_from_source_str, source_str_to_stream, unwrap_or_emit_fatal}; use rustc_session::parse::ParseSess; use rustc_span::def_id::CrateNum; -use rustc_span::symbol::{self, Symbol, sym}; -use rustc_span::{BytePos, FileName, Pos, SourceFile, Span}; +use rustc_span::{BytePos, FileName, Pos, SourceFile, Span, Symbol, sym}; use smallvec::{SmallVec, smallvec}; use crate::base::ExtCtxt; @@ -230,7 +229,7 @@ impl FromInternal<(TokenStream, &mut Rustc<'_, '_>)> for Vec { - let ident = symbol::Ident::new(name, span).without_first_quote(); + let ident = rustc_span::Ident::new(name, span).without_first_quote(); trees.extend([ TokenTree::Punct(Punct { ch: b'\'', joint: true, span }), TokenTree::Ident(Ident { sym: ident.name, is_raw: is_raw.into(), span }), diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs index 26ae541d08b..21fd11c1c5d 100644 --- a/compiler/rustc_feature/src/accepted.rs +++ b/compiler/rustc_feature/src/accepted.rs @@ -1,6 +1,6 @@ //! List of the accepted feature gates. -use rustc_span::symbol::sym; +use rustc_span::sym; use super::{Feature, to_nonzero}; diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs index bf221158d57..a065db7f7d0 100644 --- a/compiler/rustc_feature/src/builtin_attrs.rs +++ b/compiler/rustc_feature/src/builtin_attrs.rs @@ -6,7 +6,7 @@ use AttributeDuplicates::*; use AttributeGate::*; use AttributeType::*; use rustc_data_structures::fx::FxHashMap; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use crate::{Features, Stability}; diff --git a/compiler/rustc_feature/src/lib.rs b/compiler/rustc_feature/src/lib.rs index 5d27b8f542c..6db512ace1b 100644 --- a/compiler/rustc_feature/src/lib.rs +++ b/compiler/rustc_feature/src/lib.rs @@ -28,7 +28,7 @@ mod tests; use std::num::NonZero; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; #[derive(Debug, Clone)] pub struct Feature { diff --git a/compiler/rustc_feature/src/removed.rs b/compiler/rustc_feature/src/removed.rs index e25840ba5fc..388ed9d08fa 100644 --- a/compiler/rustc_feature/src/removed.rs +++ b/compiler/rustc_feature/src/removed.rs @@ -1,6 +1,6 @@ //! List of the removed feature gates. -use rustc_span::symbol::sym; +use rustc_span::sym; use super::{Feature, to_nonzero}; diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs index e07ddae06d5..6570f9b565f 100644 --- a/compiler/rustc_feature/src/unstable.rs +++ b/compiler/rustc_feature/src/unstable.rs @@ -3,8 +3,7 @@ use std::path::PathBuf; use rustc_data_structures::fx::FxHashSet; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use super::{Feature, to_nonzero}; diff --git a/compiler/rustc_hir/src/definitions.rs b/compiler/rustc_hir/src/definitions.rs index d85f9586d42..dc527240f74 100644 --- a/compiler/rustc_hir/src/definitions.rs +++ b/compiler/rustc_hir/src/definitions.rs @@ -11,7 +11,7 @@ use rustc_data_structures::stable_hasher::{Hash64, StableHasher}; use rustc_data_structures::unord::UnordMap; use rustc_index::IndexVec; use rustc_macros::{Decodable, Encodable}; -use rustc_span::symbol::{Symbol, kw, sym}; +use rustc_span::{Symbol, kw, sym}; use tracing::{debug, instrument}; pub use crate::def_id::DefPathHash; diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index 56dba0c61e2..398b694ae6b 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -20,8 +20,7 @@ use rustc_macros::{Decodable, Encodable, HashStable_Generic}; use rustc_span::def_id::LocalDefId; use rustc_span::hygiene::MacroKind; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{BytePos, DUMMY_SP, ErrorGuaranteed, Span}; +use rustc_span::{BytePos, DUMMY_SP, ErrorGuaranteed, Ident, Span, Symbol, kw, sym}; use rustc_target::asm::InlineAsmRegOrRegClass; use smallvec::SmallVec; use thin_vec::ThinVec; diff --git a/compiler/rustc_hir/src/intravisit.rs b/compiler/rustc_hir/src/intravisit.rs index 5ed5a43d522..387a195cb29 100644 --- a/compiler/rustc_hir/src/intravisit.rs +++ b/compiler/rustc_hir/src/intravisit.rs @@ -66,9 +66,8 @@ use rustc_ast::Label; use rustc_ast::visit::{VisitorResult, try_visit, visit_opt, walk_list}; -use rustc_span::Span; use rustc_span::def_id::LocalDefId; -use rustc_span::symbol::{Ident, Symbol}; +use rustc_span::{Ident, Span, Symbol}; use crate::hir::*; diff --git a/compiler/rustc_hir/src/lang_items.rs b/compiler/rustc_hir/src/lang_items.rs index 3684695774e..fae3b778d7b 100644 --- a/compiler/rustc_hir/src/lang_items.rs +++ b/compiler/rustc_hir/src/lang_items.rs @@ -11,8 +11,7 @@ use rustc_ast::attr::AttributeExt; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, kw, sym}; +use rustc_span::{Span, Symbol, kw, sym}; use crate::def_id::DefId; use crate::{MethodKind, Target}; diff --git a/compiler/rustc_hir/src/pat_util.rs b/compiler/rustc_hir/src/pat_util.rs index 2ebbb4a06b6..bb853985c7d 100644 --- a/compiler/rustc_hir/src/pat_util.rs +++ b/compiler/rustc_hir/src/pat_util.rs @@ -1,7 +1,6 @@ use std::iter::Enumerate; -use rustc_span::Span; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, Span}; use crate::def::{CtorOf, DefKind, Res}; use crate::def_id::{DefId, DefIdSet}; diff --git a/compiler/rustc_hir/src/weak_lang_items.rs b/compiler/rustc_hir/src/weak_lang_items.rs index 337859cd1fb..b4e548effd4 100644 --- a/compiler/rustc_hir/src/weak_lang_items.rs +++ b/compiler/rustc_hir/src/weak_lang_items.rs @@ -1,6 +1,6 @@ //! Validity checking for weak lang items -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use crate::LangItem; diff --git a/compiler/rustc_hir_analysis/src/check/entry.rs b/compiler/rustc_hir_analysis/src/check/entry.rs index f3dd13c84b9..245085b332c 100644 --- a/compiler/rustc_hir_analysis/src/check/entry.rs +++ b/compiler/rustc_hir_analysis/src/check/entry.rs @@ -7,9 +7,8 @@ use rustc_infer::infer::TyCtxtInferExt; use rustc_middle::span_bug; use rustc_middle::ty::{self, Ty, TyCtxt, TypingMode}; use rustc_session::config::EntryFnType; -use rustc_span::Span; use rustc_span::def_id::{CRATE_DEF_ID, DefId, LocalDefId}; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::traits::{self, ObligationCause, ObligationCauseCode}; diff --git a/compiler/rustc_hir_analysis/src/check/intrinsic.rs b/compiler/rustc_hir_analysis/src/check/intrinsic.rs index 2e6b511412b..39479401910 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsic.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsic.rs @@ -8,8 +8,7 @@ use rustc_middle::bug; use rustc_middle::traits::{ObligationCause, ObligationCauseCode}; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_span::def_id::LocalDefId; -use rustc_span::symbol::sym; -use rustc_span::{Span, Symbol}; +use rustc_span::{Span, Symbol, sym}; use crate::check::check_function_signature; use crate::errors::{ diff --git a/compiler/rustc_hir_analysis/src/check/mod.rs b/compiler/rustc_hir_analysis/src/check/mod.rs index 61e203a1ff6..0b0c92a726d 100644 --- a/compiler/rustc_hir_analysis/src/check/mod.rs +++ b/compiler/rustc_hir_analysis/src/check/mod.rs @@ -89,8 +89,7 @@ use rustc_middle::ty::{self, GenericArgs, GenericArgsRef, Ty, TyCtxt, TypingMode use rustc_middle::{bug, span_bug}; use rustc_session::parse::feature_err; use rustc_span::def_id::CRATE_DEF_ID; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{BytePos, DUMMY_SP, Span, Symbol}; +use rustc_span::{BytePos, DUMMY_SP, Ident, Span, Symbol, kw, sym}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::error_reporting::infer::ObligationCauseExt as _; use rustc_trait_selection::error_reporting::traits::suggestions::ReturnsVisitor; diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index 95ad8225f61..059b8dcd975 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -23,8 +23,7 @@ use rustc_middle::ty::{ }; use rustc_middle::{bug, span_bug}; use rustc_session::parse::feature_err; -use rustc_span::symbol::{Ident, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, sym}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::regions::InferCtxtRegionExt; use rustc_trait_selection::traits::misc::{ diff --git a/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs b/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs index 2afc2aec1ba..8f6f5b5f222 100644 --- a/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs +++ b/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs @@ -13,8 +13,7 @@ use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_middle::bug; use rustc_middle::ty::fast_reject::{SimplifiedType, TreatParams, simplify_type}; use rustc_middle::ty::{self, CrateInherentImpls, Ty, TyCtxt}; -use rustc_span::ErrorGuaranteed; -use rustc_span::symbol::sym; +use rustc_span::{ErrorGuaranteed, sym}; use crate::errors; diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index 8c9da78a659..5e662bb96bc 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -38,8 +38,7 @@ use rustc_middle::ty::fold::fold_regions; use rustc_middle::ty::util::{Discr, IntTypeExt}; use rustc_middle::ty::{self, AdtKind, Const, IsSuggestable, Ty, TyCtxt, TypingMode}; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use rustc_trait_selection::error_reporting::traits::suggestions::NextTypeParamName; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::ObligationCtxt; diff --git a/compiler/rustc_hir_analysis/src/collect/generics_of.rs b/compiler/rustc_hir_analysis/src/collect/generics_of.rs index f52d4f42eca..075615de522 100644 --- a/compiler/rustc_hir_analysis/src/collect/generics_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/generics_of.rs @@ -8,8 +8,7 @@ use rustc_hir::def::DefKind; use rustc_hir::def_id::LocalDefId; use rustc_middle::ty::{self, TyCtxt}; use rustc_session::lint; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, kw}; +use rustc_span::{Span, Symbol, kw}; use tracing::{debug, instrument}; use crate::delegation::inherit_generics_for_delegation_item; diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs index 1a6c0a93436..c5fb3474022 100644 --- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs @@ -9,8 +9,7 @@ use rustc_middle::ty::{ self, GenericPredicates, ImplTraitInTraitData, Ty, TyCtxt, TypeVisitable, TypeVisitor, Upcast, }; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::Ident; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span}; use tracing::{debug, instrument, trace}; use super::item_bounds::explicit_item_bounds_with_filter; diff --git a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs index 0f797bcdae4..7c65e9613b6 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -26,9 +26,8 @@ use rustc_middle::middle::resolve_bound_vars::*; use rustc_middle::query::Providers; use rustc_middle::ty::{self, TyCtxt, TypeSuperVisitable, TypeVisitor}; use rustc_middle::{bug, span_bug}; -use rustc_span::Span; use rustc_span::def_id::{DefId, LocalDefId, LocalDefIdMap}; -use rustc_span::symbol::{Ident, sym}; +use rustc_span::{Ident, Span, sym}; use tracing::{debug, debug_span, instrument}; use crate::errors; diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs index 5595504c3d9..c0526903e88 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs @@ -10,8 +10,7 @@ use rustc_middle::ty::print::with_forced_trimmed_paths; use rustc_middle::ty::util::IntTypeExt; use rustc_middle::ty::{self, Article, IsSuggestable, Ty, TyCtxt, TypeVisitableExt}; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::Ident; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span}; use super::{ItemCtxt, bad_placeholder}; use crate::errors::TypeofReservedKeywordUsed; @@ -473,7 +472,7 @@ fn infer_placeholder_type<'tcx>( fn check_feature_inherent_assoc_ty(tcx: TyCtxt<'_>, span: Span) { if !tcx.features().inherent_associated_types() { use rustc_session::parse::feature_err; - use rustc_span::symbol::sym; + use rustc_span::sym; feature_err( &tcx.sess, sym::inherent_associated_types, diff --git a/compiler/rustc_hir_analysis/src/errors.rs b/compiler/rustc_hir_analysis/src/errors.rs index d46f60b16f5..00ba1741ed7 100644 --- a/compiler/rustc_hir_analysis/src/errors.rs +++ b/compiler/rustc_hir_analysis/src/errors.rs @@ -6,8 +6,7 @@ use rustc_errors::{ }; use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; use rustc_middle::ty::Ty; -use rustc_span::symbol::Ident; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol}; use crate::fluent_generated as fluent; mod pattern_types; diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs index 0404e38a293..e949d4a1126 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs @@ -9,8 +9,7 @@ use rustc_hir::def::{DefKind, Res}; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_middle::bug; use rustc_middle::ty::{self as ty, IsSuggestable, Ty, TyCtxt}; -use rustc_span::symbol::Ident; -use rustc_span::{ErrorGuaranteed, Span, Symbol, sym}; +use rustc_span::{ErrorGuaranteed, Ident, Span, Symbol, kw, sym}; use rustc_trait_selection::traits; use rustc_type_ir::visit::{TypeSuperVisitable, TypeVisitable, TypeVisitableExt, TypeVisitor}; use smallvec::SmallVec; @@ -745,7 +744,7 @@ fn check_assoc_const_binding_type<'tcx>( let generics = tcx.generics_of(enclosing_item_owner_id); for index in collector.params { let param = generics.param_at(index as _, tcx); - let is_self_param = param.name == rustc_span::symbol::kw::SelfUpper; + let is_self_param = param.name == kw::SelfUpper; guar.get_or_insert(cx.dcx().emit_err(crate::errors::ParamInTyOfAssocConstBinding { span: assoc_const.span, assoc_const, 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 00c1f9b332b..0623d35853e 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs @@ -16,8 +16,7 @@ use rustc_middle::ty::{ }; use rustc_session::parse::feature_err; use rustc_span::edit_distance::find_best_match_for_name; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{BytePos, DUMMY_SP, Span, Symbol}; +use rustc_span::{BytePos, DUMMY_SP, Ident, Span, Symbol, kw, sym}; use rustc_trait_selection::error_reporting::traits::report_dyn_incompatibility; use rustc_trait_selection::traits::{ FulfillmentError, TraitAliasExpansionInfo, dyn_compatibility_violations_for_assoc_item, diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/generics.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/generics.rs index c3f4fc8699a..df00948dd21 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/generics.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/generics.rs @@ -9,7 +9,7 @@ use rustc_middle::ty::{ self, GenericArgsRef, GenericParamDef, GenericParamDefKind, IsSuggestable, Ty, }; use rustc_session::lint::builtin::LATE_BOUND_LIFETIME_ARGUMENTS; -use rustc_span::symbol::{kw, sym}; +use rustc_span::{kw, sym}; use smallvec::SmallVec; use tracing::{debug, instrument}; 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 a357ade0294..78057d5a997 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs @@ -45,8 +45,7 @@ use rustc_middle::ty::{ use rustc_middle::{bug, span_bug}; use rustc_session::lint::builtin::AMBIGUOUS_ASSOCIATED_ITEMS; use rustc_span::edit_distance::find_best_match_for_name; -use rustc_span::symbol::{Ident, Symbol, kw}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw}; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::wf::object_region_bounds; use rustc_trait_selection::traits::{self, ObligationCtxt}; diff --git a/compiler/rustc_hir_analysis/src/variance/dump.rs b/compiler/rustc_hir_analysis/src/variance/dump.rs index a0fdf95a831..31f0adf720d 100644 --- a/compiler/rustc_hir_analysis/src/variance/dump.rs +++ b/compiler/rustc_hir_analysis/src/variance/dump.rs @@ -2,7 +2,7 @@ use std::fmt::Write; use rustc_hir::def_id::{CRATE_DEF_ID, LocalDefId}; use rustc_middle::ty::{GenericArgs, TyCtxt}; -use rustc_span::symbol::sym; +use rustc_span::sym; fn format_variances(tcx: TyCtxt<'_>, def_id: LocalDefId) -> String { let variances = tcx.variances_of(def_id); diff --git a/compiler/rustc_hir_pretty/src/lib.rs b/compiler/rustc_hir_pretty/src/lib.rs index feb483a8bbb..de2a7726e9b 100644 --- a/compiler/rustc_hir_pretty/src/lib.rs +++ b/compiler/rustc_hir_pretty/src/lib.rs @@ -21,8 +21,7 @@ use rustc_hir::{ HirId, LifetimeParamKind, Node, PatKind, PreciseCapturingArg, RangeEnd, Term, }; use rustc_span::source_map::SourceMap; -use rustc_span::symbol::{Ident, Symbol, kw}; -use rustc_span::{FileName, Span}; +use rustc_span::{FileName, Ident, Span, Symbol, kw}; use {rustc_ast as ast, rustc_hir as hir}; pub fn id_to_string(map: &dyn rustc_hir::intravisit::Map<'_>, hir_id: HirId) -> String { diff --git a/compiler/rustc_hir_typeck/src/callee.rs b/compiler/rustc_hir_typeck/src/callee.rs index b430f48965a..9d364775445 100644 --- a/compiler/rustc_hir_typeck/src/callee.rs +++ b/compiler/rustc_hir_typeck/src/callee.rs @@ -13,9 +13,8 @@ use rustc_middle::ty::adjustment::{ }; use rustc_middle::ty::{self, GenericArgsRef, Ty, TyCtxt, TypeVisitableExt}; use rustc_middle::{bug, span_bug}; -use rustc_span::Span; use rustc_span::def_id::LocalDefId; -use rustc_span::symbol::{Ident, sym}; +use rustc_span::{Ident, Span, sym}; use rustc_trait_selection::error_reporting::traits::DefIdOrName; use rustc_trait_selection::infer::InferCtxtExt as _; use rustc_trait_selection::traits::query::evaluate_obligation::InferCtxtExt as _; diff --git a/compiler/rustc_hir_typeck/src/cast.rs b/compiler/rustc_hir_typeck/src/cast.rs index 80b91c21598..59c06cbc5b5 100644 --- a/compiler/rustc_hir_typeck/src/cast.rs +++ b/compiler/rustc_hir_typeck/src/cast.rs @@ -43,8 +43,7 @@ use rustc_middle::ty::{self, Ty, TyCtxt, TypeAndMut, TypeVisitableExt, VariantDe use rustc_middle::{bug, span_bug}; use rustc_session::lint; use rustc_span::def_id::LOCAL_CRATE; -use rustc_span::symbol::sym; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, sym}; use rustc_trait_selection::infer::InferCtxtExt; use tracing::{debug, instrument}; diff --git a/compiler/rustc_hir_typeck/src/check.rs b/compiler/rustc_hir_typeck/src/check.rs index 51d78646373..b0698183b57 100644 --- a/compiler/rustc_hir_typeck/src/check.rs +++ b/compiler/rustc_hir_typeck/src/check.rs @@ -10,7 +10,7 @@ use rustc_infer::infer::RegionVariableOrigin; use rustc_infer::traits::WellFormedLoc; use rustc_middle::ty::{self, Binder, Ty, TyCtxt}; use rustc_span::def_id::LocalDefId; -use rustc_span::symbol::sym; +use rustc_span::sym; use rustc_trait_selection::traits::{ObligationCause, ObligationCauseCode}; use tracing::{debug, instrument}; diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index 7d7c9331edf..e3705945f33 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -59,8 +59,7 @@ use rustc_middle::ty::error::TypeError; use rustc_middle::ty::visit::TypeVisitableExt; use rustc_middle::ty::{self, GenericArgsRef, Ty, TyCtxt}; use rustc_session::parse::feature_err; -use rustc_span::symbol::sym; -use rustc_span::{BytePos, DUMMY_SP, DesugaringKind, Span}; +use rustc_span::{BytePos, DUMMY_SP, DesugaringKind, Span, sym}; use rustc_trait_selection::infer::InferCtxtExt as _; use rustc_trait_selection::traits::query::evaluate_obligation::InferCtxtExt; use rustc_trait_selection::traits::{ diff --git a/compiler/rustc_hir_typeck/src/demand.rs b/compiler/rustc_hir_typeck/src/demand.rs index d0272651c08..e51323fc5c8 100644 --- a/compiler/rustc_hir_typeck/src/demand.rs +++ b/compiler/rustc_hir_typeck/src/demand.rs @@ -9,8 +9,7 @@ use rustc_middle::ty::error::{ExpectedFound, TypeError}; use rustc_middle::ty::fold::BottomUpFolder; use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::{self, AssocItem, Ty, TypeFoldable, TypeVisitableExt}; -use rustc_span::symbol::sym; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, sym}; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::ObligationCause; use tracing::instrument; @@ -1118,7 +1117,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { Constructor, } let mut maybe_emit_help = |def_id: hir::def_id::DefId, - callable: rustc_span::symbol::Ident, + callable: Ident, args: &[hir::Expr<'_>], kind: CallableKind| { let arg_idx = args.iter().position(|a| a.hir_id == expr.hir_id).unwrap(); diff --git a/compiler/rustc_hir_typeck/src/errors.rs b/compiler/rustc_hir_typeck/src/errors.rs index 7746a5a7132..ff09583cc65 100644 --- a/compiler/rustc_hir_typeck/src/errors.rs +++ b/compiler/rustc_hir_typeck/src/errors.rs @@ -10,8 +10,7 @@ use rustc_errors::{ use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; use rustc_middle::ty::{self, Ty}; use rustc_span::edition::{Edition, LATEST_STABLE_EDITION}; -use rustc_span::symbol::Ident; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol}; use crate::fluent_generated as fluent; diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index 66978399efb..caea53d9200 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -30,11 +30,10 @@ use rustc_middle::ty::{self, AdtKind, GenericArgsRef, Ty, TypeVisitableExt}; use rustc_middle::{bug, span_bug}; use rustc_session::errors::ExprParenthesesNeeded; use rustc_session::parse::feature_err; -use rustc_span::Span; use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::hygiene::DesugaringKind; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; +use rustc_span::{Ident, Span, Symbol, kw, sym}; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::{self, ObligationCauseCode, ObligationCtxt}; use tracing::{debug, instrument, trace}; diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index 0dacfc9b7bf..d6948081505 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -29,10 +29,9 @@ use rustc_middle::ty::{ }; use rustc_middle::{bug, span_bug}; use rustc_session::lint; -use rustc_span::Span; use rustc_span::def_id::LocalDefId; use rustc_span::hygiene::DesugaringKind; -use rustc_span::symbol::kw; +use rustc_span::{Span, kw}; use rustc_trait_selection::error_reporting::infer::need_type_info::TypeAnnotationNeeded; use rustc_trait_selection::traits::{ self, NormalizeExt, ObligationCauseCode, StructurallyNormalizeExt, diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs index 6eaba641888..ee0436f73e1 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs @@ -5,8 +5,7 @@ use rustc_hir::def::{DefKind, Res}; use rustc_hir::def_id::DefId; use rustc_infer::traits::ObligationCauseCode; use rustc_middle::ty::{self, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor}; -use rustc_span::Span; -use rustc_span::symbol::kw; +use rustc_span::{Span, kw}; use rustc_trait_selection::traits; use crate::FnCtxt; diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 6b1cceefbee..c1f08d237eb 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -22,8 +22,7 @@ use rustc_middle::ty::visit::TypeVisitableExt; use rustc_middle::ty::{self, IsSuggestable, Ty, TyCtxt}; use rustc_middle::{bug, span_bug}; use rustc_session::Session; -use rustc_span::symbol::{Ident, kw}; -use rustc_span::{DUMMY_SP, Span, sym}; +use rustc_span::{DUMMY_SP, Ident, Span, kw, sym}; use rustc_trait_selection::error_reporting::infer::{FailureCode, ObligationCauseExt}; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::{self, ObligationCauseCode, ObligationCtxt, SelectionContext}; diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs index b9011e89f04..d432199f037 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs @@ -17,8 +17,7 @@ use rustc_infer::infer; use rustc_infer::traits::Obligation; use rustc_middle::ty::{self, Const, Ty, TyCtxt, TypeVisitableExt}; use rustc_session::Session; -use rustc_span::symbol::Ident; -use rustc_span::{self, DUMMY_SP, Span, sym}; +use rustc_span::{self, DUMMY_SP, Ident, Span, sym}; use rustc_trait_selection::error_reporting::TypeErrCtxt; use rustc_trait_selection::error_reporting::infer::sub_relations::SubRelations; use rustc_trait_selection::traits::{ObligationCause, ObligationCauseCode, ObligationCtxt}; diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index 21b1768ae6f..964ef5b2106 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -24,8 +24,7 @@ use rustc_middle::ty::{ }; use rustc_session::errors::ExprParenthesesNeeded; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Ident, sym}; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol, sym}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::error_reporting::traits::DefIdOrName; use rustc_trait_selection::infer::InferCtxtExt; diff --git a/compiler/rustc_hir_typeck/src/method/mod.rs b/compiler/rustc_hir_typeck/src/method/mod.rs index e0b6ea0ac9d..4008021c3a8 100644 --- a/compiler/rustc_hir_typeck/src/method/mod.rs +++ b/compiler/rustc_hir_typeck/src/method/mod.rs @@ -19,8 +19,7 @@ use rustc_middle::ty::{ self, GenericArgs, GenericArgsRef, GenericParamDefKind, Ty, TypeVisitableExt, }; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::Ident; -use rustc_span::{ErrorGuaranteed, Span}; +use rustc_span::{ErrorGuaranteed, Ident, Span}; use rustc_trait_selection::traits::query::evaluate_obligation::InferCtxtExt; use rustc_trait_selection::traits::{self, NormalizeExt}; use tracing::{debug, instrument}; diff --git a/compiler/rustc_hir_typeck/src/method/prelude_edition_lints.rs b/compiler/rustc_hir_typeck/src/method/prelude_edition_lints.rs index b20592c85d2..5ccfcf93f69 100644 --- a/compiler/rustc_hir_typeck/src/method/prelude_edition_lints.rs +++ b/compiler/rustc_hir_typeck/src/method/prelude_edition_lints.rs @@ -8,9 +8,7 @@ use rustc_lint::{ARRAY_INTO_ITER, BOXED_SLICE_INTO_ITER}; use rustc_middle::span_bug; use rustc_middle::ty::{self, Ty}; use rustc_session::lint::builtin::{RUST_2021_PRELUDE_COLLISIONS, RUST_2024_PRELUDE_COLLISIONS}; -use rustc_span::Span; -use rustc_span::symbol::kw::{Empty, Underscore}; -use rustc_span::symbol::{Ident, sym}; +use rustc_span::{Ident, Span, kw, sym}; use rustc_trait_selection::infer::InferCtxtExt; use tracing::debug; @@ -369,11 +367,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .collect(); // Find an identifier with which this trait was imported (note that `_` doesn't count). - let any_id = import_items - .iter() - .find_map(|item| if item.ident.name != Underscore { Some(item.ident) } else { None }); + let any_id = import_items.iter().find_map(|item| { + if item.ident.name != kw::Underscore { Some(item.ident) } else { None } + }); if let Some(any_id) = any_id { - if any_id.name == Empty { + if any_id.name == kw::Empty { // Glob import, so just use its name. return None; } else { diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index 3b377076545..bc304c2b687 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -25,8 +25,7 @@ use rustc_span::def_id::{DefId, LocalDefId}; use rustc_span::edit_distance::{ edit_distance_with_substrings, find_best_match_for_name_with_substrings, }; -use rustc_span::symbol::{Ident, sym}; -use rustc_span::{DUMMY_SP, Span, Symbol}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, sym}; use rustc_trait_selection::error_reporting::infer::need_type_info::TypeAnnotationNeeded; use rustc_trait_selection::infer::InferCtxtExt as _; use rustc_trait_selection::traits::query::CanonicalTyGoal; diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index caddfc12540..1de88d52767 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -27,9 +27,9 @@ use rustc_middle::ty::print::{ }; use rustc_middle::ty::{self, GenericArgKind, IsSuggestable, Ty, TyCtxt, TypeVisitableExt}; use rustc_span::def_id::DefIdSet; -use rustc_span::symbol::{Ident, kw, sym}; use rustc_span::{ - DUMMY_SP, ErrorGuaranteed, ExpnKind, FileName, MacroKind, Span, Symbol, edit_distance, + DUMMY_SP, ErrorGuaranteed, ExpnKind, FileName, Ident, MacroKind, Span, Symbol, edit_distance, + kw, sym, }; use rustc_trait_selection::error_reporting::traits::DefIdOrName; use rustc_trait_selection::error_reporting::traits::on_unimplemented::OnUnimplementedNote; diff --git a/compiler/rustc_hir_typeck/src/op.rs b/compiler/rustc_hir_typeck/src/op.rs index 72b930ee84d..805079afdb0 100644 --- a/compiler/rustc_hir_typeck/src/op.rs +++ b/compiler/rustc_hir_typeck/src/op.rs @@ -11,9 +11,8 @@ use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::{self, IsSuggestable, Ty, TyCtxt, TypeVisitableExt}; use rustc_middle::{bug, span_bug}; use rustc_session::errors::ExprParenthesesNeeded; -use rustc_span::Span; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Ident, sym}; +use rustc_span::{Ident, Span, sym}; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::{FulfillmentError, Obligation, ObligationCtxt}; use rustc_type_ir::TyKind::*; diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index e7726845652..06392deb8ff 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -23,8 +23,7 @@ use rustc_session::parse::feature_err; use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::hygiene::DesugaringKind; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{BytePos, DUMMY_SP, Span}; +use rustc_span::{BytePos, DUMMY_SP, Ident, Span, kw, sym}; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::{ObligationCause, ObligationCauseCode}; use tracing::{debug, instrument, trace}; diff --git a/compiler/rustc_hir_typeck/src/place_op.rs b/compiler/rustc_hir_typeck/src/place_op.rs index 7c667511aa9..ba635071135 100644 --- a/compiler/rustc_hir_typeck/src/place_op.rs +++ b/compiler/rustc_hir_typeck/src/place_op.rs @@ -7,8 +7,7 @@ use rustc_middle::ty::adjustment::{ PointerCoercion, }; use rustc_middle::ty::{self, Ty}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, sym}; +use rustc_span::{Ident, Span, sym}; use tracing::debug; use {rustc_ast as ast, rustc_hir as hir}; diff --git a/compiler/rustc_hir_typeck/src/writeback.rs b/compiler/rustc_hir_typeck/src/writeback.rs index 6f1e3a0cf8c..303a07a5bf0 100644 --- a/compiler/rustc_hir_typeck/src/writeback.rs +++ b/compiler/rustc_hir_typeck/src/writeback.rs @@ -15,8 +15,7 @@ use rustc_middle::ty::adjustment::{Adjust, Adjustment, PointerCoercion}; use rustc_middle::ty::fold::{TypeFoldable, TypeFolder, fold_regions}; use rustc_middle::ty::visit::TypeVisitableExt; use rustc_middle::ty::{self, Ty, TyCtxt, TypeSuperFoldable}; -use rustc_span::Span; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use rustc_trait_selection::error_reporting::infer::need_type_info::TypeAnnotationNeeded; use rustc_trait_selection::solve; use tracing::{debug, instrument}; diff --git a/compiler/rustc_incremental/src/assert_dep_graph.rs b/compiler/rustc_incremental/src/assert_dep_graph.rs index 031c50c45d4..569034954c3 100644 --- a/compiler/rustc_incremental/src/assert_dep_graph.rs +++ b/compiler/rustc_incremental/src/assert_dep_graph.rs @@ -47,8 +47,7 @@ use rustc_middle::dep_graph::{ use rustc_middle::hir::nested_filter; use rustc_middle::ty::TyCtxt; use rustc_middle::{bug, span_bug}; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use tracing::debug; use {rustc_graphviz as dot, rustc_hir as hir}; diff --git a/compiler/rustc_incremental/src/errors.rs b/compiler/rustc_incremental/src/errors.rs index cb21f975878..b4a207386dc 100644 --- a/compiler/rustc_incremental/src/errors.rs +++ b/compiler/rustc_incremental/src/errors.rs @@ -1,8 +1,7 @@ use std::path::{Path, PathBuf}; use rustc_macros::Diagnostic; -use rustc_span::symbol::Ident; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol}; #[derive(Diagnostic)] #[diag(incremental_unrecognized_depnode)] diff --git a/compiler/rustc_incremental/src/persist/dirty_clean.rs b/compiler/rustc_incremental/src/persist/dirty_clean.rs index a85686e590b..b99872e7ae6 100644 --- a/compiler/rustc_incremental/src/persist/dirty_clean.rs +++ b/compiler/rustc_incremental/src/persist/dirty_clean.rs @@ -29,8 +29,7 @@ use rustc_hir::{ use rustc_middle::dep_graph::{DepNode, DepNodeExt, label_strs}; use rustc_middle::hir::nested_filter; use rustc_middle::ty::TyCtxt; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use thin_vec::ThinVec; use tracing::debug; diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index f3fa3d3a1c8..5086b741a83 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -41,8 +41,7 @@ use rustc_middle::ty::{ GenericParamDefKind, InferConst, IntVid, PseudoCanonicalInput, Ty, TyCtxt, TyVid, TypeVisitable, TypingEnv, TypingMode, }; -use rustc_span::Span; -use rustc_span::symbol::Symbol; +use rustc_span::{Span, Symbol}; use snapshot::undo_log::InferCtxtUndoLogs; use tracing::{debug, instrument}; use type_variable::TypeVariableOrigin; diff --git a/compiler/rustc_infer/src/traits/util.rs b/compiler/rustc_infer/src/traits/util.rs index a977bd15d3b..ab8ada1596c 100644 --- a/compiler/rustc_infer/src/traits/util.rs +++ b/compiler/rustc_infer/src/traits/util.rs @@ -1,7 +1,6 @@ use rustc_data_structures::fx::FxHashSet; use rustc_middle::ty::{self, ToPolyTraitRef, TyCtxt}; -use rustc_span::Span; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, Span}; pub use rustc_type_ir::elaborate::*; use crate::traits::{self, Obligation, ObligationCauseCode, PredicateObligation}; diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs index 91f190c6a28..1456255ea14 100644 --- a/compiler/rustc_interface/src/interface.rs +++ b/compiler/rustc_interface/src/interface.rs @@ -22,9 +22,8 @@ use rustc_session::config::{self, Cfg, CheckCfg, ExpectedValues, Input, OutFileN use rustc_session::filesearch::{self, sysroot_candidates}; use rustc_session::parse::ParseSess; use rustc_session::{CompilerIO, EarlyDiagCtxt, Session, lint}; -use rustc_span::FileName; use rustc_span::source_map::{FileLoader, RealFileLoader, SourceMapInputs}; -use rustc_span::symbol::sym; +use rustc_span::{FileName, sym}; use tracing::trace; use crate::util; diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs index 2b5271939e5..02905e632ab 100644 --- a/compiler/rustc_interface/src/passes.rs +++ b/compiler/rustc_interface/src/passes.rs @@ -32,8 +32,7 @@ use rustc_session::cstore::Untracked; use rustc_session::output::{collect_crate_types, filename_for_input, find_crate_name}; use rustc_session::search_paths::PathKind; use rustc_session::{Limit, Session}; -use rustc_span::symbol::{Symbol, sym}; -use rustc_span::{ErrorGuaranteed, FileName, SourceFileHash, SourceFileHashAlgorithm}; +use rustc_span::{ErrorGuaranteed, FileName, SourceFileHash, SourceFileHashAlgorithm, Symbol, sym}; use rustc_target::spec::PanicStrategy; use rustc_trait_selection::traits; use tracing::{info, instrument}; diff --git a/compiler/rustc_interface/src/proc_macro_decls.rs b/compiler/rustc_interface/src/proc_macro_decls.rs index 2c8014d8b3a..82593dbc2b7 100644 --- a/compiler/rustc_interface/src/proc_macro_decls.rs +++ b/compiler/rustc_interface/src/proc_macro_decls.rs @@ -2,7 +2,7 @@ use rustc_ast::attr; use rustc_hir::def_id::LocalDefId; use rustc_middle::query::Providers; use rustc_middle::ty::TyCtxt; -use rustc_span::symbol::sym; +use rustc_span::sym; fn proc_macro_decls_static(tcx: TyCtxt<'_>, (): ()) -> Option { let mut decls = None; diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index e76e9ca9f85..d103f7f45e2 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -23,8 +23,7 @@ use rustc_session::utils::{CanonicalizedPath, NativeLib, NativeLibKind}; use rustc_session::{CompilerIO, EarlyDiagCtxt, Session, build_session, filesearch, getopts}; use rustc_span::edition::{DEFAULT_EDITION, Edition}; use rustc_span::source_map::{RealFileLoader, SourceMapInputs}; -use rustc_span::symbol::sym; -use rustc_span::{FileName, SourceFileHashAlgorithm}; +use rustc_span::{FileName, SourceFileHashAlgorithm, sym}; use rustc_target::spec::{ CodeModel, FramePointer, LinkerFlavorCli, MergeFunctions, OnBrokenPipe, PanicStrategy, RelocModel, RelroLevel, SanitizerSet, SplitDebuginfo, StackProtector, TlsModel, WasmCAbi, diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs index 54fbb743b93..984b8104f53 100644 --- a/compiler/rustc_interface/src/util.rs +++ b/compiler/rustc_interface/src/util.rs @@ -18,7 +18,7 @@ use rustc_session::{EarlyDiagCtxt, Session, filesearch}; use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::edition::Edition; use rustc_span::source_map::SourceMapInputs; -use rustc_span::symbol::sym; +use rustc_span::sym; use rustc_target::spec::Target; use tracing::info; diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index d43fe27aa03..58465ec1cd9 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -39,8 +39,7 @@ pub use rustc_session::lint::builtin::*; use rustc_session::{declare_lint, declare_lint_pass, impl_lint_pass}; use rustc_span::edition::Edition; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{BytePos, InnerSpan, Span}; +use rustc_span::{BytePos, Ident, InnerSpan, Span, Symbol, kw, sym}; use rustc_target::asm::InlineAsmArch; use rustc_trait_selection::infer::{InferCtxtExt, TyCtxtInferExt}; use rustc_trait_selection::traits::misc::type_allowed_to_implement_copy; diff --git a/compiler/rustc_lint/src/context.rs b/compiler/rustc_lint/src/context.rs index d8d901698d6..50bb1fb942e 100644 --- a/compiler/rustc_lint/src/context.rs +++ b/compiler/rustc_lint/src/context.rs @@ -23,9 +23,8 @@ use rustc_session::lint::{ FutureIncompatibleInfo, Level, Lint, LintBuffer, LintExpectationId, LintId, }; use rustc_session::{LintStoreMarker, Session}; -use rustc_span::Span; use rustc_span::edit_distance::find_best_match_for_names; -use rustc_span::symbol::{Ident, Symbol, sym}; +use rustc_span::{Ident, Span, Symbol, sym}; use tracing::debug; use {rustc_abi as abi, rustc_hir as hir}; diff --git a/compiler/rustc_lint/src/dangling.rs b/compiler/rustc_lint/src/dangling.rs index 10769b57a76..98b717a3070 100644 --- a/compiler/rustc_lint/src/dangling.rs +++ b/compiler/rustc_lint/src/dangling.rs @@ -4,8 +4,7 @@ use rustc_hir::intravisit::{FnKind, Visitor, walk_expr}; use rustc_hir::{Block, Body, Expr, ExprKind, FnDecl, LangItem}; use rustc_middle::ty::{Ty, TyCtxt}; use rustc_session::{declare_lint, impl_lint_pass}; -use rustc_span::Span; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use crate::lints::DanglingPointersFromTemporaries; use crate::{LateContext, LateLintPass}; diff --git a/compiler/rustc_lint/src/early.rs b/compiler/rustc_lint/src/early.rs index a15aab32aee..bc7cd3d118c 100644 --- a/compiler/rustc_lint/src/early.rs +++ b/compiler/rustc_lint/src/early.rs @@ -12,8 +12,7 @@ use rustc_feature::Features; use rustc_middle::ty::{RegisteredTools, TyCtxt}; use rustc_session::Session; use rustc_session::lint::{BufferedEarlyLint, LintBuffer, LintPass}; -use rustc_span::Span; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, Span}; use tracing::debug; use crate::context::{EarlyContext, LintContext, LintStore}; diff --git a/compiler/rustc_lint/src/early/diagnostics.rs b/compiler/rustc_lint/src/early/diagnostics.rs index b0fb1e4af76..6d73715562b 100644 --- a/compiler/rustc_lint/src/early/diagnostics.rs +++ b/compiler/rustc_lint/src/early/diagnostics.rs @@ -11,8 +11,7 @@ use rustc_middle::middle::stability; use rustc_middle::ty::TyCtxt; use rustc_session::Session; use rustc_session::lint::{BuiltinLintDiag, ElidedLifetimeResolution}; -use rustc_span::BytePos; -use rustc_span::symbol::kw; +use rustc_span::{BytePos, kw}; use tracing::debug; use crate::lints::{self, ElidedNamedLifetime}; diff --git a/compiler/rustc_lint/src/early/diagnostics/check_cfg.rs b/compiler/rustc_lint/src/early/diagnostics/check_cfg.rs index 033c0fa4c88..eebb131599a 100644 --- a/compiler/rustc_lint/src/early/diagnostics/check_cfg.rs +++ b/compiler/rustc_lint/src/early/diagnostics/check_cfg.rs @@ -4,8 +4,7 @@ use rustc_middle::ty::TyCtxt; use rustc_session::Session; use rustc_session::config::ExpectedValues; use rustc_span::edit_distance::find_best_match_for_name; -use rustc_span::symbol::Ident; -use rustc_span::{ExpnKind, Span, Symbol, sym}; +use rustc_span::{ExpnKind, Ident, Span, Symbol, sym}; use crate::lints; diff --git a/compiler/rustc_lint/src/enum_intrinsics_non_enums.rs b/compiler/rustc_lint/src/enum_intrinsics_non_enums.rs index 8e22a9bdc45..6556a8d8f2d 100644 --- a/compiler/rustc_lint/src/enum_intrinsics_non_enums.rs +++ b/compiler/rustc_lint/src/enum_intrinsics_non_enums.rs @@ -2,8 +2,7 @@ use rustc_hir as hir; use rustc_middle::ty::Ty; use rustc_middle::ty::visit::TypeVisitableExt; use rustc_session::{declare_lint, declare_lint_pass}; -use rustc_span::Span; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use crate::context::LintContext; use crate::lints::{EnumIntrinsicsMemDiscriminate, EnumIntrinsicsMemVariant}; diff --git a/compiler/rustc_lint/src/internal.rs b/compiler/rustc_lint/src/internal.rs index 4dff512f9d6..d32666d8895 100644 --- a/compiler/rustc_lint/src/internal.rs +++ b/compiler/rustc_lint/src/internal.rs @@ -10,9 +10,8 @@ use rustc_hir::{ }; use rustc_middle::ty::{self, GenericArgsRef, Ty as MiddleTy}; use rustc_session::{declare_lint_pass, declare_tool_lint}; -use rustc_span::Span; use rustc_span::hygiene::{ExpnKind, MacroKind}; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use tracing::debug; use crate::lints::{ diff --git a/compiler/rustc_lint/src/levels.rs b/compiler/rustc_lint/src/levels.rs index 04099cd9001..0185f46c35a 100644 --- a/compiler/rustc_lint/src/levels.rs +++ b/compiler/rustc_lint/src/levels.rs @@ -20,8 +20,7 @@ use rustc_session::lint::builtin::{ UNFULFILLED_LINT_EXPECTATIONS, UNKNOWN_LINTS, UNUSED_ATTRIBUTES, }; use rustc_session::lint::{Level, Lint, LintExpectationId, LintId}; -use rustc_span::symbol::{Symbol, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, Symbol, sym}; use tracing::{debug, instrument}; use {rustc_ast as ast, rustc_hir as hir}; diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs index 62414ab00e5..ac995b59caf 100644 --- a/compiler/rustc_lint/src/lints.rs +++ b/compiler/rustc_lint/src/lints.rs @@ -16,8 +16,7 @@ use rustc_middle::ty::{Clause, PolyExistentialTraitRef, Ty, TyCtxt}; use rustc_session::Session; use rustc_session::lint::AmbiguityErrorDiag; use rustc_span::edition::Edition; -use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent}; -use rustc_span::{Span, Symbol, sym}; +use rustc_span::{Ident, MacroRulesNormalizedIdent, Span, Symbol, kw, sym}; use crate::builtin::{InitError, ShorthandAssocTyCollector, TypeAliasBounds}; use crate::errors::{OverruledAttributeSub, RequestedLevel}; @@ -2215,8 +2214,7 @@ pub(crate) struct UnexpectedCfgName { pub(crate) mod unexpected_cfg_name { use rustc_errors::DiagSymbolList; use rustc_macros::Subdiagnostic; - use rustc_span::symbol::Ident; - use rustc_span::{Span, Symbol}; + use rustc_span::{Ident, Span, Symbol}; #[derive(Subdiagnostic)] pub(crate) enum CodeSuggestion { @@ -2689,7 +2687,7 @@ impl LintDiagnostic<'_, G> for ElidedNamedLifetime { // but currently this lint's suggestions can conflict with those of `clippy::needless_lifetimes`: // https://github.com/rust-lang/rust/pull/129840#issuecomment-2323349119 // HACK: `'static` suggestions will never sonflict, emit only those for now. - if name != rustc_span::symbol::kw::StaticLifetime { + if name != kw::StaticLifetime { return; } match kind { diff --git a/compiler/rustc_lint/src/non_ascii_idents.rs b/compiler/rustc_lint/src/non_ascii_idents.rs index 9b495c19990..c30dbc24dac 100644 --- a/compiler/rustc_lint/src/non_ascii_idents.rs +++ b/compiler/rustc_lint/src/non_ascii_idents.rs @@ -2,7 +2,7 @@ use rustc_ast as ast; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::unord::UnordMap; use rustc_session::{declare_lint, declare_lint_pass}; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use unicode_security::general_security_profile::IdentifierType; use crate::lints::{ diff --git a/compiler/rustc_lint/src/non_fmt_panic.rs b/compiler/rustc_lint/src/non_fmt_panic.rs index 36b1ff59c67..6f047b4da49 100644 --- a/compiler/rustc_lint/src/non_fmt_panic.rs +++ b/compiler/rustc_lint/src/non_fmt_panic.rs @@ -8,8 +8,7 @@ use rustc_parse_format::{ParseMode, Parser, Piece}; use rustc_session::lint::FutureIncompatibilityReason; use rustc_session::{declare_lint, declare_lint_pass}; use rustc_span::edition::Edition; -use rustc_span::symbol::kw; -use rustc_span::{InnerSpan, Span, Symbol, hygiene, sym}; +use rustc_span::{InnerSpan, Span, Symbol, hygiene, kw, sym}; use rustc_trait_selection::infer::InferCtxtExt; use crate::lints::{NonFmtPanicBraces, NonFmtPanicUnused}; diff --git a/compiler/rustc_lint/src/non_local_def.rs b/compiler/rustc_lint/src/non_local_def.rs index 3c33b2dd478..a1cc3a85109 100644 --- a/compiler/rustc_lint/src/non_local_def.rs +++ b/compiler/rustc_lint/src/non_local_def.rs @@ -5,8 +5,7 @@ use rustc_hir::{Body, HirId, Item, ItemKind, Node, Path, TyKind}; use rustc_middle::ty::TyCtxt; use rustc_session::{declare_lint, impl_lint_pass}; use rustc_span::def_id::{DefId, LOCAL_CRATE}; -use rustc_span::symbol::kw; -use rustc_span::{ExpnKind, MacroKind, Span, sym}; +use rustc_span::{ExpnKind, MacroKind, Span, kw, sym}; use crate::lints::{NonLocalDefinitionsCargoUpdateNote, NonLocalDefinitionsDiag}; use crate::{LateContext, LateLintPass, LintContext, fluent_generated as fluent}; diff --git a/compiler/rustc_lint/src/nonstandard_style.rs b/compiler/rustc_lint/src/nonstandard_style.rs index e315307cd45..70dce78b572 100644 --- a/compiler/rustc_lint/src/nonstandard_style.rs +++ b/compiler/rustc_lint/src/nonstandard_style.rs @@ -6,8 +6,7 @@ use rustc_middle::ty; use rustc_session::config::CrateType; use rustc_session::{declare_lint, declare_lint_pass}; use rustc_span::def_id::LocalDefId; -use rustc_span::symbol::{Ident, sym}; -use rustc_span::{BytePos, Span}; +use rustc_span::{BytePos, Ident, Span, sym}; use {rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir}; use crate::lints::{ diff --git a/compiler/rustc_lint/src/noop_method_call.rs b/compiler/rustc_lint/src/noop_method_call.rs index 76dc96ae00f..fa519281be5 100644 --- a/compiler/rustc_lint/src/noop_method_call.rs +++ b/compiler/rustc_lint/src/noop_method_call.rs @@ -3,7 +3,7 @@ use rustc_hir::{Expr, ExprKind}; use rustc_middle::ty; use rustc_middle::ty::adjustment::Adjust; use rustc_session::{declare_lint, declare_lint_pass}; -use rustc_span::symbol::sym; +use rustc_span::sym; use crate::context::LintContext; use crate::lints::{ diff --git a/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs b/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs index 5de0d4bc870..53a411e2b87 100644 --- a/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs +++ b/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs @@ -5,8 +5,7 @@ use rustc_middle::ty::fold::BottomUpFolder; use rustc_middle::ty::print::{PrintTraitPredicateExt as _, TraitPredPrintModifiersAndPath}; use rustc_middle::ty::{self, Ty, TypeFoldable}; use rustc_session::{declare_lint, declare_lint_pass}; -use rustc_span::Span; -use rustc_span::symbol::kw; +use rustc_span::{Span, kw}; use rustc_trait_selection::traits::{self, ObligationCtxt}; use crate::{LateContext, LateLintPass, LintContext}; diff --git a/compiler/rustc_lint/src/pass_by_value.rs b/compiler/rustc_lint/src/pass_by_value.rs index ec306f5f834..3f264859d48 100644 --- a/compiler/rustc_lint/src/pass_by_value.rs +++ b/compiler/rustc_lint/src/pass_by_value.rs @@ -3,7 +3,7 @@ use rustc_hir::def::Res; use rustc_hir::{GenericArg, PathSegment, QPath, TyKind}; use rustc_middle::ty; use rustc_session::{declare_lint_pass, declare_tool_lint}; -use rustc_span::symbol::sym; +use rustc_span::sym; use crate::lints::PassByValueDiag; use crate::{LateContext, LateLintPass, LintContext}; diff --git a/compiler/rustc_lint/src/passes.rs b/compiler/rustc_lint/src/passes.rs index 380cbe650f0..3a323298bee 100644 --- a/compiler/rustc_lint/src/passes.rs +++ b/compiler/rustc_lint/src/passes.rs @@ -136,7 +136,7 @@ macro_rules! early_lint_methods { ($macro:path, $args:tt) => ( $macro!($args, [ fn check_param(a: &rustc_ast::Param); - fn check_ident(a: &rustc_span::symbol::Ident); + fn check_ident(a: &rustc_span::Ident); fn check_crate(a: &rustc_ast::Crate); fn check_crate_post(a: &rustc_ast::Crate); fn check_item(a: &rustc_ast::Item); diff --git a/compiler/rustc_lint/src/traits.rs b/compiler/rustc_lint/src/traits.rs index b793ec6a493..a9797c3b32a 100644 --- a/compiler/rustc_lint/src/traits.rs +++ b/compiler/rustc_lint/src/traits.rs @@ -1,6 +1,6 @@ use rustc_hir::{self as hir, LangItem}; use rustc_session::{declare_lint, declare_lint_pass}; -use rustc_span::symbol::sym; +use rustc_span::sym; use crate::lints::{DropGlue, DropTraitConstraintsDiag}; use crate::{LateContext, LateLintPass, LintContext}; diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index 33d31d27c73..0c58c804353 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -12,8 +12,7 @@ use rustc_middle::ty::{ }; use rustc_session::{declare_lint, declare_lint_pass, impl_lint_pass}; use rustc_span::def_id::LocalDefId; -use rustc_span::symbol::sym; -use rustc_span::{Span, Symbol, source_map}; +use rustc_span::{Span, Symbol, source_map, sym}; use tracing::debug; use {rustc_ast as ast, rustc_hir as hir}; diff --git a/compiler/rustc_lint/src/unqualified_local_imports.rs b/compiler/rustc_lint/src/unqualified_local_imports.rs index d4b39d91a71..c9dd6b32d88 100644 --- a/compiler/rustc_lint/src/unqualified_local_imports.rs +++ b/compiler/rustc_lint/src/unqualified_local_imports.rs @@ -1,7 +1,7 @@ use rustc_hir::def::{DefKind, Res}; use rustc_hir::{self as hir}; use rustc_session::{declare_lint, declare_lint_pass}; -use rustc_span::symbol::kw; +use rustc_span::kw; use crate::{LateContext, LateLintPass, LintContext, lints}; diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs index 9cad5d98562..2b3cb14f9e9 100644 --- a/compiler/rustc_lint/src/unused.rs +++ b/compiler/rustc_lint/src/unused.rs @@ -11,8 +11,7 @@ use rustc_hir::{self as hir, LangItem}; use rustc_infer::traits::util::elaborate; use rustc_middle::ty::{self, Ty, adjustment}; use rustc_session::{declare_lint, declare_lint_pass, impl_lint_pass}; -use rustc_span::symbol::{Symbol, kw, sym}; -use rustc_span::{BytePos, Span}; +use rustc_span::{BytePos, Span, Symbol, kw, sym}; use tracing::instrument; use crate::lints::{ diff --git a/compiler/rustc_lint_defs/src/lib.rs b/compiler/rustc_lint_defs/src/lib.rs index 7edb1d2ffe8..7786d3eb59a 100644 --- a/compiler/rustc_lint_defs/src/lib.rs +++ b/compiler/rustc_lint_defs/src/lib.rs @@ -15,8 +15,7 @@ use rustc_hir::def::Namespace; use rustc_hir::{HashStableContext, HirId, MissingLifetimeKind}; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; pub use rustc_span::edition::Edition; -use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent}; -use rustc_span::{Span, Symbol, sym}; +use rustc_span::{Ident, MacroRulesNormalizedIdent, Span, Symbol, sym}; use serde::{Deserialize, Serialize}; pub use self::Level::*; @@ -932,7 +931,7 @@ macro_rules! declare_lint { desc: $desc, is_externally_loaded: false, $($v: true,)* - $(feature_gate: Some(rustc_span::symbol::sym::$gate),)? + $(feature_gate: Some(rustc_span::sym::$gate),)? $(future_incompatible: Some($crate::FutureIncompatibleInfo { reason: $reason, $($field: $val,)* @@ -977,7 +976,7 @@ macro_rules! declare_tool_lint { report_in_external_macro: $external, future_incompatible: None, is_externally_loaded: true, - $(feature_gate: Some(rustc_span::symbol::sym::$gate),)? + $(feature_gate: Some(rustc_span::sym::$gate),)? crate_level_only: false, $(eval_always: $eval_always,)? ..$crate::Lint::default_fields_for_macro() diff --git a/compiler/rustc_macros/src/diagnostics/mod.rs b/compiler/rustc_macros/src/diagnostics/mod.rs index 0f7b8921509..91398f1a9da 100644 --- a/compiler/rustc_macros/src/diagnostics/mod.rs +++ b/compiler/rustc_macros/src/diagnostics/mod.rs @@ -16,7 +16,7 @@ use synstructure::Structure; /// # extern crate rustc_errors; /// # use rustc_errors::Applicability; /// # extern crate rustc_span; -/// # use rustc_span::{symbol::Ident, Span}; +/// # use rustc_span::{Ident, Span}; /// # extern crate rust_middle; /// # use rustc_middle::ty::Ty; /// #[derive(Diagnostic)] diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index fd1535094c9..c8715f94d5d 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -29,8 +29,7 @@ use rustc_session::lint::{self, BuiltinLintDiag}; use rustc_session::output::validate_crate_name; use rustc_session::search_paths::PathKind; use rustc_span::edition::Edition; -use rustc_span::symbol::{Ident, Symbol, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, sym}; use rustc_target::spec::{PanicStrategy, Target, TargetTuple}; use tracing::{debug, info, trace}; diff --git a/compiler/rustc_metadata/src/locator.rs b/compiler/rustc_metadata/src/locator.rs index d59ec7af6ec..b9ebf17af24 100644 --- a/compiler/rustc_metadata/src/locator.rs +++ b/compiler/rustc_metadata/src/locator.rs @@ -229,8 +229,7 @@ use rustc_session::cstore::CrateSource; use rustc_session::filesearch::FileSearch; use rustc_session::search_paths::PathKind; use rustc_session::utils::CanonicalizedPath; -use rustc_span::Span; -use rustc_span::symbol::Symbol; +use rustc_span::{Span, Symbol}; use rustc_target::spec::{Target, TargetTuple}; use tracing::{debug, info}; diff --git a/compiler/rustc_metadata/src/native_libs.rs b/compiler/rustc_metadata/src/native_libs.rs index fe3bdb3a7b9..057b46557e5 100644 --- a/compiler/rustc_metadata/src/native_libs.rs +++ b/compiler/rustc_metadata/src/native_libs.rs @@ -16,7 +16,7 @@ use rustc_session::parse::feature_err; use rustc_session::search_paths::PathKind; use rustc_session::utils::NativeLibKind; use rustc_span::def_id::{DefId, LOCAL_CRATE}; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use rustc_target::spec::LinkSelfContainedComponents; use crate::{errors, fluent_generated}; diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index 6eae4f9a8d6..90b1d2952c5 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -31,8 +31,7 @@ use rustc_serialize::{Decodable, Decoder}; use rustc_session::Session; use rustc_session::cstore::{CrateSource, ExternCrate}; use rustc_span::hygiene::HygieneDecodeContext; -use rustc_span::symbol::kw; -use rustc_span::{BytePos, DUMMY_SP, Pos, SpanData, SpanDecoder, SyntaxContext}; +use rustc_span::{BytePos, DUMMY_SP, Pos, SpanData, SpanDecoder, SyntaxContext, kw}; use tracing::debug; use crate::creader::CStore; @@ -874,7 +873,7 @@ impl MetadataBlob { let def_key = root.tables.def_keys.get(blob, item).unwrap().decode(blob); #[cfg_attr(not(bootstrap), allow(rustc::symbol_intern_string_literal))] let def_name = if item == CRATE_DEF_INDEX { - rustc_span::symbol::kw::Crate + kw::Crate } else { def_key .disambiguated_data diff --git a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs index f8c743d4f27..527f2f10205 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs @@ -17,9 +17,8 @@ use rustc_middle::ty::{self, TyCtxt}; use rustc_middle::util::Providers; use rustc_session::cstore::{CrateStore, ExternCrate}; use rustc_session::{Session, StableCrateId}; -use rustc_span::Span; use rustc_span::hygiene::ExpnId; -use rustc_span::symbol::{Symbol, kw}; +use rustc_span::{Span, Symbol, kw}; use super::{Decodable, DecodeContext, DecodeIterator}; use crate::creader::{CStore, LoadedMacro}; diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index 88906d71597..fff6f3f804f 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -27,9 +27,9 @@ use rustc_middle::{bug, span_bug}; use rustc_serialize::{Decodable, Decoder, Encodable, Encoder, opaque}; use rustc_session::config::{CrateType, OptLevel}; use rustc_span::hygiene::HygieneEncodeContext; -use rustc_span::symbol::sym; use rustc_span::{ ExternalSource, FileName, SourceFile, SpanData, SpanEncoder, StableSourceFileId, SyntaxContext, + sym, }; use tracing::{debug, instrument, trace}; diff --git a/compiler/rustc_metadata/src/rmeta/mod.rs b/compiler/rustc_metadata/src/rmeta/mod.rs index f1872807aef..64a1c70dd2f 100644 --- a/compiler/rustc_metadata/src/rmeta/mod.rs +++ b/compiler/rustc_metadata/src/rmeta/mod.rs @@ -36,8 +36,7 @@ use rustc_session::config::SymbolManglingVersion; use rustc_session::cstore::{CrateDepKind, ForeignModule, LinkagePreference, NativeLib}; use rustc_span::edition::Edition; use rustc_span::hygiene::{ExpnIndex, MacroKind, SyntaxContextData}; -use rustc_span::symbol::{Ident, Symbol}; -use rustc_span::{self, ExpnData, ExpnHash, ExpnId, Span}; +use rustc_span::{self, ExpnData, ExpnHash, ExpnId, Ident, Span, Symbol}; use rustc_target::spec::{PanicStrategy, TargetTuple}; use table::TableBuilder; use {rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir}; diff --git a/compiler/rustc_middle/src/arena.rs b/compiler/rustc_middle/src/arena.rs index 52233d407f2..750531b638e 100644 --- a/compiler/rustc_middle/src/arena.rs +++ b/compiler/rustc_middle/src/arena.rs @@ -86,8 +86,8 @@ macro_rules! arena_types { [] dyn_compatibility_violations: rustc_middle::traits::DynCompatibilityViolation, [] codegen_unit: rustc_middle::mir::mono::CodegenUnit<'tcx>, [decode] attribute: rustc_hir::Attribute, - [] name_set: rustc_data_structures::unord::UnordSet, - [] ordered_name_set: rustc_data_structures::fx::FxIndexSet, + [] name_set: rustc_data_structures::unord::UnordSet, + [] ordered_name_set: rustc_data_structures::fx::FxIndexSet, [] pats: rustc_middle::ty::PatternKind<'tcx>, // Note that this deliberately duplicates items in the `rustc_hir::arena`, diff --git a/compiler/rustc_middle/src/dep_graph/dep_node.rs b/compiler/rustc_middle/src/dep_graph/dep_node.rs index 87bbeb178ee..fcfc31575f8 100644 --- a/compiler/rustc_middle/src/dep_graph/dep_node.rs +++ b/compiler/rustc_middle/src/dep_graph/dep_node.rs @@ -64,7 +64,7 @@ pub use rustc_query_system::dep_graph::DepNode; use rustc_query_system::dep_graph::FingerprintStyle; pub use rustc_query_system::dep_graph::dep_node::DepKind; pub(crate) use rustc_query_system::dep_graph::{DepContext, DepNodeParams}; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use crate::mir::mono::MonoItem; use crate::ty::TyCtxt; diff --git a/compiler/rustc_middle/src/hir/map/mod.rs b/compiler/rustc_middle/src/hir/map/mod.rs index fc3cbfd7b3e..308078ddf87 100644 --- a/compiler/rustc_middle/src/hir/map/mod.rs +++ b/compiler/rustc_middle/src/hir/map/mod.rs @@ -12,8 +12,7 @@ use rustc_hir::*; use rustc_hir_pretty as pprust_hir; use rustc_middle::hir::nested_filter; use rustc_span::def_id::StableCrateId; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{ErrorGuaranteed, Span}; +use rustc_span::{ErrorGuaranteed, Ident, Span, Symbol, kw, sym}; use crate::hir::ModuleItems; use crate::middle::debugger_visualizer::DebuggerVisualizerFile; diff --git a/compiler/rustc_middle/src/lint.rs b/compiler/rustc_middle/src/lint.rs index 971d036fa69..620d9f1c357 100644 --- a/compiler/rustc_middle/src/lint.rs +++ b/compiler/rustc_middle/src/lint.rs @@ -9,7 +9,7 @@ use rustc_session::Session; use rustc_session::lint::builtin::{self, FORBIDDEN_LINT_GROUPS}; use rustc_session::lint::{FutureIncompatibilityReason, Level, Lint, LintExpectationId, LintId}; use rustc_span::hygiene::{ExpnKind, MacroKind}; -use rustc_span::{DUMMY_SP, DesugaringKind, Span, Symbol, symbol}; +use rustc_span::{DUMMY_SP, DesugaringKind, Span, Symbol, kw}; use tracing::instrument; use crate::ty::TyCtxt; @@ -37,7 +37,7 @@ pub enum LintLevelSource { impl LintLevelSource { pub fn name(&self) -> Symbol { match *self { - LintLevelSource::Default => symbol::kw::Default, + LintLevelSource::Default => kw::Default, LintLevelSource::Node { name, .. } => name, LintLevelSource::CommandLine(name, _) => name, } diff --git a/compiler/rustc_middle/src/metadata.rs b/compiler/rustc_middle/src/metadata.rs index c3175c6bdf5..57c8960943b 100644 --- a/compiler/rustc_middle/src/metadata.rs +++ b/compiler/rustc_middle/src/metadata.rs @@ -1,7 +1,7 @@ use rustc_hir::def::Res; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; +use rustc_span::Ident; use rustc_span::def_id::DefId; -use rustc_span::symbol::Ident; use smallvec::SmallVec; use crate::ty; diff --git a/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs b/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs index 509063c40d7..241767fe249 100644 --- a/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs +++ b/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs @@ -1,7 +1,7 @@ use rustc_abi::Align; use rustc_attr_parsing::{InlineAttr, InstructionSetAttr, OptimizeAttr}; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use rustc_target::spec::SanitizerSet; use crate::mir::mono::Linkage; diff --git a/compiler/rustc_middle/src/middle/limits.rs b/compiler/rustc_middle/src/middle/limits.rs index 3a3e84a87af..8a367a947d1 100644 --- a/compiler/rustc_middle/src/middle/limits.rs +++ b/compiler/rustc_middle/src/middle/limits.rs @@ -12,7 +12,7 @@ use std::num::IntErrorKind; use rustc_ast::attr::AttributeExt; use rustc_session::{Limit, Limits, Session}; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use crate::error::LimitInvalid; use crate::query::Providers; diff --git a/compiler/rustc_middle/src/middle/mod.rs b/compiler/rustc_middle/src/middle/mod.rs index 83873439bd9..692fe027c49 100644 --- a/compiler/rustc_middle/src/middle/mod.rs +++ b/compiler/rustc_middle/src/middle/mod.rs @@ -6,8 +6,7 @@ pub mod lang_items; pub mod lib_features { use rustc_data_structures::unord::UnordMap; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; - use rustc_span::Span; - use rustc_span::symbol::Symbol; + use rustc_span::{Span, Symbol}; #[derive(Copy, Clone, Debug, PartialEq, Eq)] #[derive(HashStable, TyEncodable, TyDecodable)] diff --git a/compiler/rustc_middle/src/middle/stability.rs b/compiler/rustc_middle/src/middle/stability.rs index ece561c7493..84c3c2eb49e 100644 --- a/compiler/rustc_middle/src/middle/stability.rs +++ b/compiler/rustc_middle/src/middle/stability.rs @@ -18,8 +18,7 @@ use rustc_session::Session; use rustc_session::lint::builtin::{DEPRECATED, DEPRECATED_IN_FUTURE, SOFT_UNSTABLE}; use rustc_session::lint::{BuiltinLintDiag, DeprecatedSinceKind, Level, Lint, LintBuffer}; use rustc_session::parse::feature_err_issue; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use tracing::debug; pub use self::StabilityLevel::*; diff --git a/compiler/rustc_middle/src/mir/consts.rs b/compiler/rustc_middle/src/mir/consts.rs index d8a39191920..1231ea88569 100644 --- a/compiler/rustc_middle/src/mir/consts.rs +++ b/compiler/rustc_middle/src/mir/consts.rs @@ -5,7 +5,7 @@ use rustc_hir::def_id::DefId; use rustc_macros::{HashStable, Lift, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable}; use rustc_session::RemapFileNameExt; use rustc_session::config::RemapPathScopeComponents; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, Symbol}; use rustc_type_ir::visit::TypeVisitableExt; use super::interpret::ReportedErrorInfo; @@ -569,7 +569,7 @@ impl<'tcx> TyCtxt<'tcx> { let topmost = span.ctxt().outer_expn().expansion_cause().unwrap_or(span); let caller = self.sess.source_map().lookup_char_pos(topmost.lo()); self.const_caller_location( - rustc_span::symbol::Symbol::intern( + Symbol::intern( &caller .file .name diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 56340ff0095..7f3239fa57a 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -26,8 +26,7 @@ use rustc_index::{Idx, IndexSlice, IndexVec}; use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable}; use rustc_serialize::{Decodable, Encodable}; use rustc_span::source_map::Spanned; -use rustc_span::symbol::Symbol; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, Symbol}; use tracing::trace; pub use self::query::*; diff --git a/compiler/rustc_middle/src/mir/mono.rs b/compiler/rustc_middle/src/mir/mono.rs index dcb680c283c..27168b2a9f2 100644 --- a/compiler/rustc_middle/src/mir/mono.rs +++ b/compiler/rustc_middle/src/mir/mono.rs @@ -13,8 +13,7 @@ use rustc_index::Idx; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; use rustc_query_system::ich::StableHashingContext; use rustc_session::config::OptLevel; -use rustc_span::Span; -use rustc_span::symbol::Symbol; +use rustc_span::{Span, Symbol}; use rustc_target::spec::SymbolVisibility; use tracing::debug; diff --git a/compiler/rustc_middle/src/mir/query.rs b/compiler/rustc_middle/src/mir/query.rs index f690359e012..429be9bc725 100644 --- a/compiler/rustc_middle/src/mir/query.rs +++ b/compiler/rustc_middle/src/mir/query.rs @@ -11,8 +11,7 @@ use rustc_hir::def_id::LocalDefId; use rustc_index::bit_set::BitMatrix; use rustc_index::{Idx, IndexVec}; use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable}; -use rustc_span::Span; -use rustc_span::symbol::Symbol; +use rustc_span::{Span, Symbol}; use smallvec::SmallVec; use super::{ConstValue, SourceInfo}; diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index fea940ea47c..b7ece5ffa62 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -10,10 +10,9 @@ use rustc_hir::CoroutineKind; use rustc_hir::def_id::DefId; use rustc_index::IndexVec; use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable}; -use rustc_span::Span; use rustc_span::def_id::LocalDefId; use rustc_span::source_map::Spanned; -use rustc_span::symbol::Symbol; +use rustc_span::{Span, Symbol}; use rustc_target::asm::InlineAsmRegOrRegClass; use smallvec::SmallVec; diff --git a/compiler/rustc_middle/src/query/erase.rs b/compiler/rustc_middle/src/query/erase.rs index 9afcf9466b6..b72c0e776fe 100644 --- a/compiler/rustc_middle/src/query/erase.rs +++ b/compiler/rustc_middle/src/query/erase.rs @@ -332,7 +332,7 @@ trivial! { rustc_span::ExpnId, rustc_span::Span, rustc_span::Symbol, - rustc_span::symbol::Ident, + rustc_span::Ident, rustc_target::spec::PanicStrategy, rustc_type_ir::Variance, u32, diff --git a/compiler/rustc_middle/src/query/keys.rs b/compiler/rustc_middle/src/query/keys.rs index 66fec2dd0f7..e243425c0b7 100644 --- a/compiler/rustc_middle/src/query/keys.rs +++ b/compiler/rustc_middle/src/query/keys.rs @@ -4,8 +4,7 @@ use rustc_hir::def_id::{CrateNum, DefId, LOCAL_CRATE, LocalDefId, LocalModDefId, use rustc_hir::hir_id::{HirId, OwnerId}; use rustc_query_system::dep_graph::DepNodeIndex; use rustc_query_system::query::{DefIdCache, DefaultCache, SingleCache, VecCache}; -use rustc_span::symbol::{Ident, Symbol}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol}; use crate::infer::canonical::CanonicalQueryInput; use crate::mir::mono::CollectionMode; diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index 9475e629683..2c2dffe8b88 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -41,8 +41,7 @@ use rustc_session::cstore::{ use rustc_session::lint::LintExpectationId; use rustc_span::def_id::LOCAL_CRATE; use rustc_span::source_map::Spanned; -use rustc_span::symbol::Symbol; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, Symbol}; use rustc_target::spec::PanicStrategy; use {rustc_abi as abi, rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir}; @@ -680,7 +679,7 @@ rustc_queries! { /// of supertraits that define the given associated type. This is used to avoid /// cycles in resolving type-dependent associated item paths like `T::Item`. query explicit_supertraits_containing_assoc_item( - key: (DefId, rustc_span::symbol::Ident) + key: (DefId, rustc_span::Ident) ) -> ty::EarlyBinder<'tcx, &'tcx [(ty::Clause<'tcx>, Span)]> { desc { |tcx| "computing the super traits of `{}` with associated type name `{}`", tcx.def_path_str(key.0), @@ -709,7 +708,7 @@ rustc_queries! { /// To avoid cycles within the predicates of a single item we compute /// per-type-parameter predicates for resolving `T::AssocTy`. query type_param_predicates( - key: (LocalDefId, LocalDefId, rustc_span::symbol::Ident) + key: (LocalDefId, LocalDefId, rustc_span::Ident) ) -> ty::EarlyBinder<'tcx, &'tcx [(ty::Clause<'tcx>, Span)]> { desc { |tcx| "computing the bounds for type parameter `{}`", tcx.hir().ty_param_name(key.1) } } @@ -1284,7 +1283,7 @@ rustc_queries! { desc { |tcx| "computing target features for inline asm of `{}`", tcx.def_path_str(def_id) } } - query fn_arg_names(def_id: DefId) -> &'tcx [rustc_span::symbol::Ident] { + query fn_arg_names(def_id: DefId) -> &'tcx [rustc_span::Ident] { desc { |tcx| "looking up function parameter names for `{}`", tcx.def_path_str(def_id) } separate_provide_extern } diff --git a/compiler/rustc_middle/src/query/on_disk_cache.rs b/compiler/rustc_middle/src/query/on_disk_cache.rs index 2c22f7b8f49..4a144ebb899 100644 --- a/compiler/rustc_middle/src/query/on_disk_cache.rs +++ b/compiler/rustc_middle/src/query/on_disk_cache.rs @@ -799,7 +799,7 @@ macro_rules! impl_ref_decoder { impl_ref_decoder! {<'tcx> Span, rustc_hir::Attribute, - rustc_span::symbol::Ident, + rustc_span::Ident, ty::Variance, rustc_span::def_id::DefId, rustc_span::def_id::LocalDefId, diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index 8c434265d27..b34a1782581 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -20,8 +20,7 @@ use rustc_macros::{ Decodable, Encodable, HashStable, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable, }; use rustc_span::def_id::{CRATE_DEF_ID, LocalDefId}; -use rustc_span::symbol::Symbol; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, Symbol}; // FIXME: Remove this import and import via `solve::` pub use rustc_type_ir::solve::BuiltinImplSource; use smallvec::{SmallVec, smallvec}; diff --git a/compiler/rustc_middle/src/traits/specialization_graph.rs b/compiler/rustc_middle/src/traits/specialization_graph.rs index 515aabbe2fc..ed7c98ee0e0 100644 --- a/compiler/rustc_middle/src/traits/specialization_graph.rs +++ b/compiler/rustc_middle/src/traits/specialization_graph.rs @@ -2,7 +2,7 @@ use rustc_data_structures::fx::FxIndexMap; use rustc_errors::ErrorGuaranteed; use rustc_hir::def_id::{DefId, DefIdMap}; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; -use rustc_span::symbol::sym; +use rustc_span::sym; use crate::error::StrictCoherenceNeedsNegativeCoherence; use crate::ty::fast_reject::SimplifiedType; diff --git a/compiler/rustc_middle/src/ty/adt.rs b/compiler/rustc_middle/src/ty/adt.rs index 447cbc8932e..8f4137cc011 100644 --- a/compiler/rustc_middle/src/ty/adt.rs +++ b/compiler/rustc_middle/src/ty/adt.rs @@ -17,7 +17,7 @@ use rustc_index::{IndexSlice, IndexVec}; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; use rustc_query_system::ich::StableHashingContext; use rustc_session::DataTypeKind; -use rustc_span::symbol::sym; +use rustc_span::sym; use rustc_type_ir::solve::AdtDestructorKind; use tracing::{debug, info, trace}; diff --git a/compiler/rustc_middle/src/ty/assoc.rs b/compiler/rustc_middle/src/ty/assoc.rs index 62157d9bfe2..6309dd2e490 100644 --- a/compiler/rustc_middle/src/ty/assoc.rs +++ b/compiler/rustc_middle/src/ty/assoc.rs @@ -3,7 +3,7 @@ use rustc_hir as hir; use rustc_hir::def::{DefKind, Namespace}; use rustc_hir::def_id::DefId; use rustc_macros::{Decodable, Encodable, HashStable}; -use rustc_span::symbol::{Ident, Symbol}; +use rustc_span::{Ident, Symbol}; use super::{TyCtxt, Visibility}; use crate::ty; diff --git a/compiler/rustc_middle/src/ty/closure.rs b/compiler/rustc_middle/src/ty/closure.rs index 6ab4d76e545..33d39b137b6 100644 --- a/compiler/rustc_middle/src/ty/closure.rs +++ b/compiler/rustc_middle/src/ty/closure.rs @@ -7,8 +7,7 @@ use rustc_hir::HirId; use rustc_hir::def_id::LocalDefId; use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable}; use rustc_span::def_id::LocalDefIdMap; -use rustc_span::symbol::Ident; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol}; use super::TyCtxt; use crate::hir::place::{ diff --git a/compiler/rustc_middle/src/ty/codec.rs b/compiler/rustc_middle/src/ty/codec.rs index aba5719138c..94bf1aa4f03 100644 --- a/compiler/rustc_middle/src/ty/codec.rs +++ b/compiler/rustc_middle/src/ty/codec.rs @@ -548,7 +548,7 @@ macro_rules! impl_arena_copy_decoder { impl_arena_copy_decoder! {<'tcx> Span, - rustc_span::symbol::Ident, + rustc_span::Ident, ty::Variance, rustc_span::def_id::DefId, rustc_span::def_id::LocalDefId, diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 24e44e5ba10..54ee582f4de 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -47,8 +47,7 @@ use rustc_session::cstore::{CrateStoreDyn, Untracked}; use rustc_session::lint::Lint; use rustc_session::{Limit, MetadataKind, Session}; use rustc_span::def_id::{CRATE_DEF_ID, DefPathHash, StableCrateId}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use rustc_type_ir::TyKind::*; use rustc_type_ir::fold::TypeFoldable; use rustc_type_ir::lang_items::TraitSolverLangItem; diff --git a/compiler/rustc_middle/src/ty/generics.rs b/compiler/rustc_middle/src/ty/generics.rs index ce40ab18261..85d9db7ee74 100644 --- a/compiler/rustc_middle/src/ty/generics.rs +++ b/compiler/rustc_middle/src/ty/generics.rs @@ -2,8 +2,7 @@ use rustc_ast as ast; use rustc_data_structures::fx::FxHashMap; use rustc_hir::def_id::DefId; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, kw}; +use rustc_span::{Span, Symbol, kw}; use tracing::instrument; use super::{Clause, InstantiatedPredicates, ParamConst, ParamTy, Ty, TyCtxt}; diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index 07573a79260..ad1680ed3a2 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -16,8 +16,7 @@ use rustc_hir::def_id::DefId; use rustc_index::IndexVec; use rustc_macros::{HashStable, TyDecodable, TyEncodable, extension}; use rustc_session::config::OptLevel; -use rustc_span::symbol::{Symbol, sym}; -use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span}; +use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span, Symbol, sym}; use rustc_target::callconv::FnAbi; use rustc_target::spec::{ HasTargetSpec, HasWasmCAbiOpt, HasX86AbiOpt, PanicStrategy, Target, WasmCAbi, X86Abi, diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index 061b4e806b2..25d0d7b71da 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -46,8 +46,7 @@ use rustc_serialize::{Decodable, Encodable}; use rustc_session::lint::LintBuffer; pub use rustc_session::lint::RegisteredTools; use rustc_span::hygiene::MacroKind; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{ExpnId, ExpnKind, Span}; +use rustc_span::{ExpnId, ExpnKind, Ident, Span, Symbol, kw, sym}; pub use rustc_type_ir::relate::VarianceDiagInfo; pub use rustc_type_ir::*; use tracing::{debug, instrument}; diff --git a/compiler/rustc_middle/src/ty/parameterized.rs b/compiler/rustc_middle/src/ty/parameterized.rs index 59f2555be95..86a95827e84 100644 --- a/compiler/rustc_middle/src/ty/parameterized.rs +++ b/compiler/rustc_middle/src/ty/parameterized.rs @@ -109,7 +109,7 @@ trivially_parameterized_over_tcx! { rustc_span::Symbol, rustc_span::def_id::DefPathHash, rustc_span::hygiene::SyntaxContextData, - rustc_span::symbol::Ident, + rustc_span::Ident, rustc_type_ir::Variance, rustc_hir::Attribute, } diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index 40e0fb0087f..83508d97cf8 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -16,8 +16,7 @@ use rustc_hir::definitions::{DefKey, DefPathDataName}; use rustc_macros::{Lift, extension}; use rustc_session::Limit; use rustc_session::cstore::{ExternCrate, ExternCrateSource}; -use rustc_span::symbol::{Ident, Symbol, kw}; -use rustc_span::{FileNameDisplayPreference, sym}; +use rustc_span::{FileNameDisplayPreference, Ident, Symbol, kw, sym}; use rustc_type_ir::{Upcast as _, elaborate}; use smallvec::SmallVec; diff --git a/compiler/rustc_middle/src/ty/region.rs b/compiler/rustc_middle/src/ty/region.rs index 60c2c322d4f..0eb2aafdf2e 100644 --- a/compiler/rustc_middle/src/ty/region.rs +++ b/compiler/rustc_middle/src/ty/region.rs @@ -4,8 +4,7 @@ use rustc_data_structures::intern::Interned; use rustc_errors::MultiSpan; use rustc_hir::def_id::DefId; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; -use rustc_span::symbol::{Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, ErrorGuaranteed}; +use rustc_span::{DUMMY_SP, ErrorGuaranteed, Symbol, kw, sym}; use rustc_type_ir::RegionKind as IrRegionKind; pub use rustc_type_ir::RegionVid; use tracing::debug; diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 0af0a5f170d..ec4fb93bdb3 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -224,7 +224,6 @@ TrivialTypeTraversalImpls! { ::rustc_ast::InlineAsmOptions, ::rustc_ast::InlineAsmTemplatePiece, ::rustc_ast::NodeId, - ::rustc_span::symbol::Symbol, ::rustc_hir::def::Res, ::rustc_hir::def_id::LocalDefId, ::rustc_hir::ByRef, @@ -252,8 +251,9 @@ TrivialTypeTraversalImpls! { crate::ty::Placeholder, crate::ty::LateParamRegion, crate::ty::adjustment::PointerCoercion, + ::rustc_span::Ident, ::rustc_span::Span, - ::rustc_span::symbol::Ident, + ::rustc_span::Symbol, ty::BoundVar, ty::ValTree<'tcx>, } diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 3fbc23924f5..045c483d6a5 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -15,8 +15,7 @@ use rustc_hir as hir; use rustc_hir::LangItem; use rustc_hir::def_id::DefId; use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, extension}; -use rustc_span::symbol::{Symbol, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, Symbol, sym}; use rustc_type_ir::TyKind::*; use rustc_type_ir::visit::TypeVisitableExt; use rustc_type_ir::{self as ir, BoundVar, CollectAndApply, DynKind}; diff --git a/compiler/rustc_middle/src/util/call_kind.rs b/compiler/rustc_middle/src/util/call_kind.rs index df5b73ac1bd..0e395331687 100644 --- a/compiler/rustc_middle/src/util/call_kind.rs +++ b/compiler/rustc_middle/src/util/call_kind.rs @@ -4,8 +4,7 @@ use rustc_hir::def_id::DefId; use rustc_hir::{LangItem, lang_items}; -use rustc_span::symbol::Ident; -use rustc_span::{DesugaringKind, Span, sym}; +use rustc_span::{DesugaringKind, Ident, Span, sym}; use tracing::debug; use crate::ty::{AssocItemContainer, GenericArgsRef, Instance, Ty, TyCtxt, TypingEnv}; diff --git a/compiler/rustc_mir_build/src/builder/matches/mod.rs b/compiler/rustc_mir_build/src/builder/matches/mod.rs index edbe9c69109..b944d13fb0d 100644 --- a/compiler/rustc_mir_build/src/builder/matches/mod.rs +++ b/compiler/rustc_mir_build/src/builder/matches/mod.rs @@ -14,8 +14,7 @@ use rustc_middle::middle::region; use rustc_middle::mir::{self, *}; use rustc_middle::thir::{self, *}; use rustc_middle::ty::{self, CanonicalUserTypeAnnotation, Ty}; -use rustc_span::symbol::Symbol; -use rustc_span::{BytePos, Pos, Span}; +use rustc_span::{BytePos, Pos, Span, Symbol}; use tracing::{debug, instrument}; use crate::builder::ForGuard::{self, OutsideGuard, RefWithinGuard}; diff --git a/compiler/rustc_mir_build/src/builder/matches/test.rs b/compiler/rustc_mir_build/src/builder/matches/test.rs index 596d525f5d8..8cca84d7fcc 100644 --- a/compiler/rustc_mir_build/src/builder/matches/test.rs +++ b/compiler/rustc_mir_build/src/builder/matches/test.rs @@ -16,8 +16,7 @@ use rustc_middle::ty::{self, GenericArg, Ty, TyCtxt}; use rustc_middle::{bug, span_bug}; use rustc_span::def_id::DefId; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Symbol, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, Symbol, sym}; use tracing::{debug, instrument}; use crate::builder::Builder; diff --git a/compiler/rustc_mir_build/src/builder/mod.rs b/compiler/rustc_mir_build/src/builder/mod.rs index 96e4ca3493d..fdd951c8899 100644 --- a/compiler/rustc_mir_build/src/builder/mod.rs +++ b/compiler/rustc_mir_build/src/builder/mod.rs @@ -24,8 +24,7 @@ use rustc_middle::query::TyCtxtAt; use rustc_middle::thir::{self, ExprId, LintLevel, LocalVarId, Param, ParamId, PatKind, Thir}; use rustc_middle::ty::{self, ScalarInt, Ty, TyCtxt, TypeVisitableExt, TypingMode}; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::sym; -use rustc_span::{Span, Symbol}; +use rustc_span::{Span, Symbol, sym}; use super::lints; use crate::builder::expr::as_place::PlaceBuilder; diff --git a/compiler/rustc_mir_build/src/check_unsafety.rs b/compiler/rustc_mir_build/src/check_unsafety.rs index fc0031616aa..f7071eb139f 100644 --- a/compiler/rustc_mir_build/src/check_unsafety.rs +++ b/compiler/rustc_mir_build/src/check_unsafety.rs @@ -15,8 +15,7 @@ use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_session::lint::Level; use rustc_session::lint::builtin::{DEPRECATED_SAFE_2024, UNSAFE_OP_IN_UNSAFE_FN, UNUSED_UNSAFE}; use rustc_span::def_id::{DefId, LocalDefId}; -use rustc_span::symbol::Symbol; -use rustc_span::{Span, sym}; +use rustc_span::{Span, Symbol, sym}; use crate::builder::ExprCategory; use crate::errors::*; diff --git a/compiler/rustc_mir_build/src/errors.rs b/compiler/rustc_mir_build/src/errors.rs index 3632da943e1..e77d2496168 100644 --- a/compiler/rustc_mir_build/src/errors.rs +++ b/compiler/rustc_mir_build/src/errors.rs @@ -7,8 +7,7 @@ use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; use rustc_middle::ty::{self, Ty}; use rustc_pattern_analysis::errors::Uncovered; use rustc_pattern_analysis::rustc::RustcPatCtxt; -use rustc_span::Span; -use rustc_span::symbol::Symbol; +use rustc_span::{Span, Symbol}; use crate::fluent_generated as fluent; diff --git a/compiler/rustc_mir_dataflow/src/framework/graphviz.rs b/compiler/rustc_mir_dataflow/src/framework/graphviz.rs index 5b2b128e035..60c97710c7f 100644 --- a/compiler/rustc_mir_dataflow/src/framework/graphviz.rs +++ b/compiler/rustc_mir_dataflow/src/framework/graphviz.rs @@ -16,7 +16,7 @@ use rustc_middle::mir::{ }; use rustc_middle::ty::TyCtxt; use rustc_middle::ty::print::with_no_trimmed_paths; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use tracing::debug; use {rustc_ast as ast, rustc_graphviz as dot}; diff --git a/compiler/rustc_mir_dataflow/src/rustc_peek.rs b/compiler/rustc_mir_dataflow/src/rustc_peek.rs index 85cf8ca2104..399141aa921 100644 --- a/compiler/rustc_mir_dataflow/src/rustc_peek.rs +++ b/compiler/rustc_mir_dataflow/src/rustc_peek.rs @@ -2,8 +2,7 @@ use rustc_ast::MetaItem; use rustc_hir::def_id::DefId; use rustc_middle::mir::{self, Body, Local, Location}; use rustc_middle::ty::{self, Ty, TyCtxt}; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use tracing::{debug, info}; use crate::errors::{ diff --git a/compiler/rustc_mir_transform/src/coroutine.rs b/compiler/rustc_mir_transform/src/coroutine.rs index 31d5245fb5c..a3320f99cc3 100644 --- a/compiler/rustc_mir_transform/src/coroutine.rs +++ b/compiler/rustc_mir_transform/src/coroutine.rs @@ -73,9 +73,8 @@ use rustc_mir_dataflow::impls::{ always_storage_live_locals, }; use rustc_mir_dataflow::{Analysis, Results, ResultsVisitor}; -use rustc_span::Span; use rustc_span::def_id::{DefId, LocalDefId}; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use rustc_target::spec::PanicStrategy; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::infer::TyCtxtInferExt as _; diff --git a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs index ef61866e902..9f5bb015fa3 100644 --- a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs +++ b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs @@ -78,7 +78,7 @@ use rustc_middle::hir::place::{Projection, ProjectionKind}; use rustc_middle::mir::visit::MutVisitor; use rustc_middle::mir::{self, dump_mir}; use rustc_middle::ty::{self, InstanceKind, Ty, TyCtxt, TypeVisitableExt}; -use rustc_span::symbol::kw; +use rustc_span::kw; pub(crate) fn coroutine_by_move_body_def_id<'tcx>( tcx: TyCtxt<'tcx>, diff --git a/compiler/rustc_mir_transform/src/function_item_references.rs b/compiler/rustc_mir_transform/src/function_item_references.rs index 2945fc6f3d5..fb21bf9977f 100644 --- a/compiler/rustc_mir_transform/src/function_item_references.rs +++ b/compiler/rustc_mir_transform/src/function_item_references.rs @@ -5,9 +5,8 @@ use rustc_middle::mir::visit::Visitor; use rustc_middle::mir::*; use rustc_middle::ty::{self, EarlyBinder, GenericArgsRef, Ty, TyCtxt}; use rustc_session::lint::builtin::FUNCTION_ITEM_REFERENCES; -use rustc_span::Span; use rustc_span::source_map::Spanned; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use crate::errors; diff --git a/compiler/rustc_mir_transform/src/instsimplify.rs b/compiler/rustc_mir_transform/src/instsimplify.rs index adc3374df2e..1a65affe812 100644 --- a/compiler/rustc_mir_transform/src/instsimplify.rs +++ b/compiler/rustc_mir_transform/src/instsimplify.rs @@ -7,8 +7,7 @@ use rustc_middle::bug; use rustc_middle::mir::*; use rustc_middle::ty::layout::ValidityRequirement; use rustc_middle::ty::{self, GenericArgsRef, Ty, TyCtxt, layout}; -use rustc_span::symbol::Symbol; -use rustc_span::{DUMMY_SP, sym}; +use rustc_span::{DUMMY_SP, Symbol, sym}; use crate::simplify::simplify_duplicate_switch_targets; use crate::take_array; diff --git a/compiler/rustc_mir_transform/src/lower_intrinsics.rs b/compiler/rustc_mir_transform/src/lower_intrinsics.rs index 6d635606687..942c6144ea6 100644 --- a/compiler/rustc_mir_transform/src/lower_intrinsics.rs +++ b/compiler/rustc_mir_transform/src/lower_intrinsics.rs @@ -3,7 +3,7 @@ use rustc_middle::mir::*; use rustc_middle::ty::{self, TyCtxt}; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::sym; +use rustc_span::sym; use crate::take_array; diff --git a/compiler/rustc_monomorphize/src/collector.rs b/compiler/rustc_monomorphize/src/collector.rs index 480d82c1a38..05d34715314 100644 --- a/compiler/rustc_monomorphize/src/collector.rs +++ b/compiler/rustc_monomorphize/src/collector.rs @@ -232,8 +232,7 @@ use rustc_middle::{bug, span_bug}; use rustc_session::Limit; use rustc_session::config::EntryFnType; use rustc_span::source_map::{Spanned, dummy_spanned, respan}; -use rustc_span::symbol::sym; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, sym}; use tracing::{debug, instrument, trace}; use crate::errors::{self, EncounteredErrorWhileInstantiating, NoOptimizedMir, RecursionLimit}; diff --git a/compiler/rustc_monomorphize/src/mono_checks/move_check.rs b/compiler/rustc_monomorphize/src/mono_checks/move_check.rs index 438d49fd7fb..02b9397f9a9 100644 --- a/compiler/rustc_monomorphize/src/mono_checks/move_check.rs +++ b/compiler/rustc_monomorphize/src/mono_checks/move_check.rs @@ -6,9 +6,8 @@ use rustc_middle::mir::{self, Location, traversal}; use rustc_middle::ty::{self, AssocKind, Instance, Ty, TyCtxt, TypeFoldable}; use rustc_session::Limit; use rustc_session::lint::builtin::LARGE_ASSIGNMENTS; -use rustc_span::Span; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{Ident, sym}; +use rustc_span::{Ident, Span, sym}; use tracing::{debug, trace}; use crate::errors::LargeAssignmentsLint; diff --git a/compiler/rustc_monomorphize/src/partitioning.rs b/compiler/rustc_monomorphize/src/partitioning.rs index 33e1065f051..7b179663430 100644 --- a/compiler/rustc_monomorphize/src/partitioning.rs +++ b/compiler/rustc_monomorphize/src/partitioning.rs @@ -117,7 +117,7 @@ use rustc_middle::ty::{self, InstanceKind, TyCtxt}; use rustc_middle::util::Providers; use rustc_session::CodegenUnits; use rustc_session::config::{DumpMonoStatsFormat, SwitchWithOptPath}; -use rustc_span::symbol::Symbol; +use rustc_span::Symbol; use rustc_target::spec::SymbolVisibility; use tracing::debug; diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs index 4c4e03cdfa3..f78d9dc2bfc 100644 --- a/compiler/rustc_parse/src/errors.rs +++ b/compiler/rustc_parse/src/errors.rs @@ -13,8 +13,7 @@ use rustc_errors::{ use rustc_macros::{Diagnostic, Subdiagnostic}; use rustc_session::errors::ExprParenthesesNeeded; use rustc_span::edition::{Edition, LATEST_STABLE_EDITION}; -use rustc_span::symbol::Ident; -use rustc_span::{Span, Symbol}; +use rustc_span::{Ident, Span, Symbol}; use crate::fluent_generated as fluent; use crate::parser::{ForbiddenLetReason, TokenDescription}; diff --git a/compiler/rustc_parse/src/lexer/mod.rs b/compiler/rustc_parse/src/lexer/mod.rs index 443ddfc94ec..792e2cc26ef 100644 --- a/compiler/rustc_parse/src/lexer/mod.rs +++ b/compiler/rustc_parse/src/lexer/mod.rs @@ -14,8 +14,7 @@ use rustc_session::lint::builtin::{ TEXT_DIRECTION_CODEPOINT_IN_COMMENT, }; use rustc_session::parse::ParseSess; -use rustc_span::symbol::Symbol; -use rustc_span::{BytePos, Pos, Span}; +use rustc_span::{BytePos, Pos, Span, Symbol}; use tracing::debug; use crate::lexer::diagnostics::TokenTreeDiagInfo; diff --git a/compiler/rustc_parse/src/lexer/unicode_chars.rs b/compiler/rustc_parse/src/lexer/unicode_chars.rs index 42eef27803e..ef8d0f96b61 100644 --- a/compiler/rustc_parse/src/lexer/unicode_chars.rs +++ b/compiler/rustc_parse/src/lexer/unicode_chars.rs @@ -1,8 +1,7 @@ //! Characters and their corresponding confusables were collected from //! -use rustc_span::symbol::kw; -use rustc_span::{BytePos, Pos, Span}; +use rustc_span::{BytePos, Pos, Span, kw}; use super::Lexer; use crate::errors::TokenSubstitution; diff --git a/compiler/rustc_parse/src/parser/attr.rs b/compiler/rustc_parse/src/parser/attr.rs index 8cf37671185..9da4ab5a788 100644 --- a/compiler/rustc_parse/src/parser/attr.rs +++ b/compiler/rustc_parse/src/parser/attr.rs @@ -2,8 +2,7 @@ use rustc_ast::token::{self, Delimiter}; use rustc_ast::{self as ast, Attribute, attr}; use rustc_errors::codes::*; use rustc_errors::{Diag, PResult}; -use rustc_span::symbol::kw; -use rustc_span::{BytePos, Span}; +use rustc_span::{BytePos, Span, kw}; use thin_vec::ThinVec; use tracing::debug; diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs index e5edf605d82..d1a725e729a 100644 --- a/compiler/rustc_parse/src/parser/diagnostics.rs +++ b/compiler/rustc_parse/src/parser/diagnostics.rs @@ -22,8 +22,8 @@ use rustc_errors::{ use rustc_session::errors::ExprParenthesesNeeded; use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::source_map::Spanned; -use rustc_span::symbol::{AllKeywords, Ident, kw, sym}; -use rustc_span::{BytePos, DUMMY_SP, Span, SpanSnippetError, Symbol}; +use rustc_span::symbol::AllKeywords; +use rustc_span::{BytePos, DUMMY_SP, Ident, Span, SpanSnippetError, Symbol, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use tracing::{debug, trace}; diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index a2136399b0c..5a377464223 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -26,8 +26,7 @@ use rustc_session::errors::{ExprParenthesesNeeded, report_lit_error}; use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::BREAK_WITH_LABEL_AND_LOOP; use rustc_span::source_map::{self, Spanned}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{BytePos, ErrorGuaranteed, Pos, Span}; +use rustc_span::{BytePos, ErrorGuaranteed, Ident, Pos, Span, Symbol, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use tracing::instrument; diff --git a/compiler/rustc_parse/src/parser/generics.rs b/compiler/rustc_parse/src/parser/generics.rs index 76ecb77d750..65e390c9a82 100644 --- a/compiler/rustc_parse/src/parser/generics.rs +++ b/compiler/rustc_parse/src/parser/generics.rs @@ -4,8 +4,7 @@ use rustc_ast::{ WhereClause, token, }; use rustc_errors::{Applicability, PResult}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, kw}; +use rustc_span::{Ident, Span, kw}; use thin_vec::ThinVec; use super::{ForceCollect, Parser, Trailing, UsePreAttrPos}; diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index e27fc963eb9..e6a8eda42e8 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -13,8 +13,7 @@ use rustc_errors::codes::*; use rustc_errors::{Applicability, PResult, StashKey, struct_span_code_err}; use rustc_span::edit_distance::edit_distance; use rustc_span::edition::Edition; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span, source_map}; +use rustc_span::{DUMMY_SP, ErrorGuaranteed, Ident, Span, Symbol, kw, source_map, sym}; use thin_vec::{ThinVec, thin_vec}; use tracing::debug; diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index 976ffe608a2..0d220e74c0e 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -39,8 +39,7 @@ use rustc_data_structures::sync::Lrc; use rustc_errors::{Applicability, Diag, FatalError, MultiSpan, PResult}; use rustc_index::interval::IntervalSet; use rustc_session::parse::ParseSess; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use thin_vec::ThinVec; use tracing::debug; diff --git a/compiler/rustc_parse/src/parser/mut_visit/tests.rs b/compiler/rustc_parse/src/parser/mut_visit/tests.rs index b82c295732d..46c678c3902 100644 --- a/compiler/rustc_parse/src/parser/mut_visit/tests.rs +++ b/compiler/rustc_parse/src/parser/mut_visit/tests.rs @@ -1,8 +1,7 @@ use rustc_ast as ast; use rustc_ast::mut_visit::MutVisitor; use rustc_ast_pretty::pprust; -use rustc_span::create_default_session_globals_then; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, create_default_session_globals_then}; use crate::parser::tests::{matches_codepattern, string_to_crate}; diff --git a/compiler/rustc_parse/src/parser/nonterminal.rs b/compiler/rustc_parse/src/parser/nonterminal.rs index 752a52b382b..67cabb757e9 100644 --- a/compiler/rustc_parse/src/parser/nonterminal.rs +++ b/compiler/rustc_parse/src/parser/nonterminal.rs @@ -9,7 +9,7 @@ use rustc_ast::token::{ use rustc_ast_pretty::pprust; use rustc_data_structures::sync::Lrc; use rustc_errors::PResult; -use rustc_span::symbol::{Ident, kw}; +use rustc_span::{Ident, kw}; use crate::errors::UnexpectedNonterminal; use crate::parser::pat::{CommaRecoveryMode, RecoverColon, RecoverComma}; diff --git a/compiler/rustc_parse/src/parser/pat.rs b/compiler/rustc_parse/src/parser/pat.rs index 255be721525..76101914bbd 100644 --- a/compiler/rustc_parse/src/parser/pat.rs +++ b/compiler/rustc_parse/src/parser/pat.rs @@ -13,8 +13,7 @@ use rustc_ast_pretty::pprust; use rustc_errors::{Applicability, Diag, DiagArgValue, PResult, StashKey}; use rustc_session::errors::ExprParenthesesNeeded; use rustc_span::source_map::{Spanned, respan}; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{BytePos, ErrorGuaranteed, Span}; +use rustc_span::{BytePos, ErrorGuaranteed, Ident, Span, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use super::{ForceCollect, Parser, PathStyle, Restrictions, Trailing, UsePreAttrPos}; diff --git a/compiler/rustc_parse/src/parser/path.rs b/compiler/rustc_parse/src/parser/path.rs index 6a7029a8f1c..f2f0c6dfad5 100644 --- a/compiler/rustc_parse/src/parser/path.rs +++ b/compiler/rustc_parse/src/parser/path.rs @@ -9,8 +9,7 @@ use rustc_ast::{ Path, PathSegment, QSelf, }; use rustc_errors::{Applicability, Diag, PResult}; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{BytePos, Span}; +use rustc_span::{BytePos, Ident, Span, kw, sym}; use thin_vec::ThinVec; use tracing::debug; diff --git a/compiler/rustc_parse/src/parser/stmt.rs b/compiler/rustc_parse/src/parser/stmt.rs index 5fa2e01fc86..0f32e396273 100644 --- a/compiler/rustc_parse/src/parser/stmt.rs +++ b/compiler/rustc_parse/src/parser/stmt.rs @@ -12,8 +12,7 @@ use rustc_ast::{ LocalKind, MacCall, MacCallStmt, MacStmtStyle, Recovered, Stmt, StmtKind, }; use rustc_errors::{Applicability, Diag, PResult}; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{BytePos, ErrorGuaranteed, Span}; +use rustc_span::{BytePos, ErrorGuaranteed, Ident, Span, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use super::attr::InnerAttrForbiddenReason; diff --git a/compiler/rustc_parse/src/parser/tests.rs b/compiler/rustc_parse/src/parser/tests.rs index 1813960dad0..ca9e78be201 100644 --- a/compiler/rustc_parse/src/parser/tests.rs +++ b/compiler/rustc_parse/src/parser/tests.rs @@ -18,8 +18,9 @@ use rustc_errors::emitter::{HumanEmitter, OutputTheme}; use rustc_errors::{DiagCtxt, MultiSpan, PResult}; use rustc_session::parse::ParseSess; use rustc_span::source_map::{FilePathMapping, SourceMap}; -use rustc_span::symbol::{Symbol, kw, sym}; -use rustc_span::{BytePos, FileName, Pos, Span, create_default_session_globals_then}; +use rustc_span::{ + BytePos, FileName, Pos, Span, Symbol, create_default_session_globals_then, kw, sym, +}; use termcolor::WriteColor; use crate::parser::{ForceCollect, Parser}; diff --git a/compiler/rustc_parse/src/parser/ty.rs b/compiler/rustc_parse/src/parser/ty.rs index f696074e66a..6e720db4edf 100644 --- a/compiler/rustc_parse/src/parser/ty.rs +++ b/compiler/rustc_parse/src/parser/ty.rs @@ -8,8 +8,7 @@ use rustc_ast::{ TyKind, UnsafeBinderTy, }; use rustc_errors::{Applicability, PResult}; -use rustc_span::symbol::{Ident, kw, sym}; -use rustc_span::{ErrorGuaranteed, Span}; +use rustc_span::{ErrorGuaranteed, Ident, Span, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use super::{Parser, PathStyle, SeqSep, TokenType, Trailing}; diff --git a/compiler/rustc_passes/src/abi_test.rs b/compiler/rustc_passes/src/abi_test.rs index ff3ae65fbea..75a1bb39a74 100644 --- a/compiler/rustc_passes/src/abi_test.rs +++ b/compiler/rustc_passes/src/abi_test.rs @@ -5,7 +5,7 @@ use rustc_middle::span_bug; use rustc_middle::ty::layout::{FnAbiError, LayoutError}; use rustc_middle::ty::{self, GenericArgs, Instance, Ty, TyCtxt}; use rustc_span::source_map::Spanned; -use rustc_span::symbol::sym; +use rustc_span::sym; use rustc_target::abi::call::FnAbi; use super::layout_test::ensure_wf; diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index 4d66f5a5387..ce7947ad3ec 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -30,8 +30,7 @@ use rustc_session::lint::builtin::{ UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, UNUSED_ATTRIBUTES, }; use rustc_session::parse::feature_err; -use rustc_span::symbol::{Symbol, kw, sym}; -use rustc_span::{BytePos, DUMMY_SP, Span}; +use rustc_span::{BytePos, DUMMY_SP, Span, Symbol, kw, sym}; use rustc_target::abi::Size; use rustc_target::spec::abi::Abi; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs index ecf8d34ad84..c5dc8e68fe8 100644 --- a/compiler/rustc_passes/src/dead.rs +++ b/compiler/rustc_passes/src/dead.rs @@ -22,7 +22,7 @@ use rustc_middle::ty::{self, TyCtxt}; use rustc_middle::{bug, span_bug}; use rustc_session::lint; use rustc_session::lint::builtin::DEAD_CODE; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use crate::errors::{ ChangeFields, IgnoredDerivedImpls, MultipleDeadCodes, ParentInfo, UselessAssignment, diff --git a/compiler/rustc_passes/src/diagnostic_items.rs b/compiler/rustc_passes/src/diagnostic_items.rs index 071e537233b..7b02aecdfae 100644 --- a/compiler/rustc_passes/src/diagnostic_items.rs +++ b/compiler/rustc_passes/src/diagnostic_items.rs @@ -14,7 +14,7 @@ use rustc_hir::{Attribute, OwnerId}; use rustc_middle::query::{LocalCrate, Providers}; use rustc_middle::ty::TyCtxt; use rustc_span::def_id::{DefId, LOCAL_CRATE}; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use crate::errors::DuplicateDiagnosticItemInCrate; diff --git a/compiler/rustc_passes/src/entry.rs b/compiler/rustc_passes/src/entry.rs index 690808e7527..4949a4316a7 100644 --- a/compiler/rustc_passes/src/entry.rs +++ b/compiler/rustc_passes/src/entry.rs @@ -8,8 +8,7 @@ use rustc_middle::query::Providers; use rustc_middle::ty::TyCtxt; use rustc_session::RemapFileNameExt; use rustc_session::config::{CrateType, EntryFnType, RemapPathScopeComponents, sigpipe}; -use rustc_span::symbol::sym; -use rustc_span::{Span, Symbol}; +use rustc_span::{Span, Symbol, sym}; use crate::errors::{ AttrOnlyInFunctions, ExternMain, MultipleRustcMain, MultipleStartFunctions, NoMainErr, diff --git a/compiler/rustc_passes/src/lang_items.rs b/compiler/rustc_passes/src/lang_items.rs index 19f00aa3c1b..fe1140d893e 100644 --- a/compiler/rustc_passes/src/lang_items.rs +++ b/compiler/rustc_passes/src/lang_items.rs @@ -16,8 +16,7 @@ use rustc_hir::{LangItem, LanguageItems, MethodKind, Target}; use rustc_middle::query::Providers; use rustc_middle::ty::{ResolverAstLowering, TyCtxt}; use rustc_session::cstore::ExternCrate; -use rustc_span::Span; -use rustc_span::symbol::kw::Empty; +use rustc_span::{Span, kw}; use crate::errors::{ DuplicateLangItem, IncorrectTarget, LangItemOnIncorrectTarget, UnknownLangItem, @@ -99,7 +98,7 @@ impl<'ast, 'tcx> LanguageItemCollector<'ast, 'tcx> { { let lang_item_name = lang_item.name(); let crate_name = self.tcx.crate_name(item_def_id.krate); - let mut dependency_of = Empty; + let mut dependency_of = kw::Empty; let is_local = item_def_id.is_local(); let path = if is_local { String::new() @@ -113,8 +112,8 @@ impl<'ast, 'tcx> LanguageItemCollector<'ast, 'tcx> { }; let first_defined_span = self.item_spans.get(&original_def_id).copied(); - let mut orig_crate_name = Empty; - let mut orig_dependency_of = Empty; + let mut orig_crate_name = kw::Empty; + let mut orig_dependency_of = kw::Empty; let orig_is_local = original_def_id.is_local(); let orig_path = if orig_is_local { String::new() diff --git a/compiler/rustc_passes/src/layout_test.rs b/compiler/rustc_passes/src/layout_test.rs index dbdc383504c..1133cf93304 100644 --- a/compiler/rustc_passes/src/layout_test.rs +++ b/compiler/rustc_passes/src/layout_test.rs @@ -5,9 +5,8 @@ use rustc_hir::def_id::LocalDefId; use rustc_middle::span_bug; use rustc_middle::ty::layout::{HasTyCtxt, HasTypingEnv, LayoutError, LayoutOfHelpers}; use rustc_middle::ty::{self, Ty, TyCtxt}; -use rustc_span::Span; use rustc_span::source_map::Spanned; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::infer::TyCtxtInferExt; use rustc_trait_selection::traits; diff --git a/compiler/rustc_passes/src/lib_features.rs b/compiler/rustc_passes/src/lib_features.rs index 07f7a1c8f2a..600c46eb3d0 100644 --- a/compiler/rustc_passes/src/lib_features.rs +++ b/compiler/rustc_passes/src/lib_features.rs @@ -11,8 +11,7 @@ use rustc_middle::hir::nested_filter; use rustc_middle::middle::lib_features::{FeatureStability, LibFeatures}; use rustc_middle::query::{LocalCrate, Providers}; use rustc_middle::ty::TyCtxt; -use rustc_span::symbol::Symbol; -use rustc_span::{Span, sym}; +use rustc_span::{Span, Symbol, sym}; use crate::errors::{FeaturePreviouslyDeclared, FeatureStableTwice}; diff --git a/compiler/rustc_passes/src/liveness.rs b/compiler/rustc_passes/src/liveness.rs index 034f7308c4a..b85a987c641 100644 --- a/compiler/rustc_passes/src/liveness.rs +++ b/compiler/rustc_passes/src/liveness.rs @@ -96,8 +96,7 @@ use rustc_middle::query::Providers; use rustc_middle::span_bug; use rustc_middle::ty::{self, RootVariableMinCaptureList, Ty, TyCtxt}; use rustc_session::lint; -use rustc_span::symbol::{Symbol, kw, sym}; -use rustc_span::{BytePos, Span}; +use rustc_span::{BytePos, Span, Symbol, kw, sym}; use tracing::{debug, instrument}; use self::LiveNodeKind::*; diff --git a/compiler/rustc_passes/src/naked_functions.rs b/compiler/rustc_passes/src/naked_functions.rs index 766a9e1bdad..cad488bd71d 100644 --- a/compiler/rustc_passes/src/naked_functions.rs +++ b/compiler/rustc_passes/src/naked_functions.rs @@ -10,8 +10,7 @@ use rustc_middle::query::Providers; use rustc_middle::span_bug; use rustc_middle::ty::TyCtxt; use rustc_session::lint::builtin::UNDEFINED_NAKED_FUNCTION_ABI; -use rustc_span::Span; -use rustc_span::symbol::sym; +use rustc_span::{Span, sym}; use rustc_target::spec::abi::Abi; use crate::errors::{ diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs index 96614a7a128..d3637dac6b7 100644 --- a/compiler/rustc_passes/src/stability.rs +++ b/compiler/rustc_passes/src/stability.rs @@ -25,8 +25,7 @@ use rustc_middle::query::Providers; use rustc_middle::ty::TyCtxt; use rustc_session::lint; use rustc_session::lint::builtin::{INEFFECTIVE_UNSTABLE_TRAIT_IMPL, USELESS_DEPRECATED}; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Span, Symbol, sym}; use tracing::{debug, info}; use crate::errors; diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index 6357efa5bae..c50c9007a01 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -37,9 +37,8 @@ use rustc_middle::ty::{ }; use rustc_middle::{bug, span_bug}; use rustc_session::lint; -use rustc_span::Span; use rustc_span::hygiene::Transparency; -use rustc_span::symbol::{Ident, kw, sym}; +use rustc_span::{Ident, Span, kw, sym}; use tracing::debug; use {rustc_attr_parsing as attr, rustc_hir as hir}; diff --git a/compiler/rustc_query_system/src/ich/hcx.rs b/compiler/rustc_query_system/src/ich/hcx.rs index ad4b194eb50..6b737ceb50a 100644 --- a/compiler/rustc_query_system/src/ich/hcx.rs +++ b/compiler/rustc_query_system/src/ich/hcx.rs @@ -6,8 +6,7 @@ use rustc_hir::definitions::DefPathHash; use rustc_session::Session; use rustc_session::cstore::Untracked; use rustc_span::source_map::SourceMap; -use rustc_span::symbol::Symbol; -use rustc_span::{BytePos, CachingSourceMapView, DUMMY_SP, SourceFile, Span, SpanData}; +use rustc_span::{BytePos, CachingSourceMapView, DUMMY_SP, SourceFile, Span, SpanData, Symbol}; use crate::ich; diff --git a/compiler/rustc_query_system/src/ich/mod.rs b/compiler/rustc_query_system/src/ich/mod.rs index 8f28b1d4c80..852d93b711f 100644 --- a/compiler/rustc_query_system/src/ich/mod.rs +++ b/compiler/rustc_query_system/src/ich/mod.rs @@ -1,6 +1,6 @@ //! ICH - Incremental Compilation Hash -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; pub use self::hcx::StableHashingContext; diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index f82fd6a6f5f..3fe1eed243f 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -22,9 +22,8 @@ use rustc_metadata::creader::LoadedMacro; use rustc_middle::metadata::ModChild; use rustc_middle::ty::Feed; use rustc_middle::{bug, ty}; -use rustc_span::Span; use rustc_span::hygiene::{ExpnId, LocalExpnId, MacroKind}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; +use rustc_span::{Ident, Span, Symbol, kw, sym}; use tracing::debug; use crate::Namespace::{MacroNS, TypeNS, ValueNS}; diff --git a/compiler/rustc_resolve/src/check_unused.rs b/compiler/rustc_resolve/src/check_unused.rs index e36055e8575..5a605df88c2 100644 --- a/compiler/rustc_resolve/src/check_unused.rs +++ b/compiler/rustc_resolve/src/check_unused.rs @@ -33,8 +33,7 @@ use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::{ MACRO_USE_EXTERN_CRATE, UNUSED_EXTERN_CRATES, UNUSED_IMPORTS, UNUSED_QUALIFICATIONS, }; -use rustc_span::symbol::{Ident, kw}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, kw}; use crate::imports::{Import, ImportKind}; use crate::{LexicalScopeBinding, NameBindingKind, Resolver, module_to_string}; diff --git a/compiler/rustc_resolve/src/def_collector.rs b/compiler/rustc_resolve/src/def_collector.rs index ec442e22204..87024c487df 100644 --- a/compiler/rustc_resolve/src/def_collector.rs +++ b/compiler/rustc_resolve/src/def_collector.rs @@ -7,9 +7,8 @@ use rustc_expand::expand::AstFragment; use rustc_hir as hir; use rustc_hir::def::{CtorKind, CtorOf, DefKind}; use rustc_hir::def_id::LocalDefId; -use rustc_span::Span; use rustc_span::hygiene::LocalExpnId; -use rustc_span::symbol::{Symbol, kw, sym}; +use rustc_span::{Span, Symbol, kw, sym}; use tracing::debug; use crate::{ImplTraitContext, InvocationParent, Resolver}; diff --git a/compiler/rustc_resolve/src/diagnostics.rs b/compiler/rustc_resolve/src/diagnostics.rs index 368eb3c26c7..38c7d4ef216 100644 --- a/compiler/rustc_resolve/src/diagnostics.rs +++ b/compiler/rustc_resolve/src/diagnostics.rs @@ -28,8 +28,7 @@ use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::edition::Edition; use rustc_span::hygiene::MacroKind; use rustc_span::source_map::SourceMap; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{BytePos, Span, SyntaxContext}; +use rustc_span::{BytePos, Ident, Span, Symbol, SyntaxContext, kw, sym}; use thin_vec::{ThinVec, thin_vec}; use tracing::debug; diff --git a/compiler/rustc_resolve/src/errors.rs b/compiler/rustc_resolve/src/errors.rs index 24f5a812a82..3bfe98f7091 100644 --- a/compiler/rustc_resolve/src/errors.rs +++ b/compiler/rustc_resolve/src/errors.rs @@ -1,8 +1,7 @@ use rustc_errors::codes::*; use rustc_errors::{Applicability, ElidedLifetimeInPathSubdiag, MultiSpan}; use rustc_macros::{Diagnostic, Subdiagnostic}; -use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol}; +use rustc_span::{Ident, Span, Symbol}; use crate::Res; use crate::late::PatternSource; diff --git a/compiler/rustc_resolve/src/ident.rs b/compiler/rustc_resolve/src/ident.rs index 5906a682f3e..45e87edc53e 100644 --- a/compiler/rustc_resolve/src/ident.rs +++ b/compiler/rustc_resolve/src/ident.rs @@ -9,8 +9,7 @@ use rustc_session::lint::builtin::PROC_MACRO_DERIVE_RESOLUTION_FALLBACK; use rustc_session::parse::feature_err; use rustc_span::def_id::LocalDefId; use rustc_span::hygiene::{ExpnId, ExpnKind, LocalExpnId, MacroKind, SyntaxContext}; -use rustc_span::symbol::{Ident, kw}; -use rustc_span::{Span, sym}; +use rustc_span::{Ident, Span, kw, sym}; use tracing::{debug, instrument}; use crate::errors::{ParamKindInEnumDiscriminant, ParamKindInNonTrivialAnonConst}; diff --git a/compiler/rustc_resolve/src/imports.rs b/compiler/rustc_resolve/src/imports.rs index 2ed3f4d2c4f..5b1d8d622bd 100644 --- a/compiler/rustc_resolve/src/imports.rs +++ b/compiler/rustc_resolve/src/imports.rs @@ -17,10 +17,9 @@ use rustc_session::lint::builtin::{ AMBIGUOUS_GLOB_REEXPORTS, HIDDEN_GLOB_REEXPORTS, PUB_USE_OF_PRIVATE_EXTERN_CRATE, REDUNDANT_IMPORTS, UNUSED_IMPORTS, }; -use rustc_span::Span; use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::hygiene::LocalExpnId; -use rustc_span::symbol::{Ident, Symbol, kw}; +use rustc_span::{Ident, Span, Symbol, kw}; use smallvec::SmallVec; use tracing::debug; diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index 61be85d2dff..a48a2865228 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -33,8 +33,7 @@ use rustc_session::config::{CrateType, ResolveDocLinks}; use rustc_session::lint::{self, BuiltinLintDiag}; use rustc_session::parse::feature_err; use rustc_span::source_map::{Spanned, respan}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{BytePos, Span, SyntaxContext}; +use rustc_span::{BytePos, Ident, Span, Symbol, SyntaxContext, kw, sym}; use smallvec::{SmallVec, smallvec}; use tracing::{debug, instrument, trace}; diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index 85ea6a74d3c..6651a06ab34 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -27,8 +27,7 @@ use rustc_session::{Session, lint}; use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::edition::Edition; use rustc_span::hygiene::MacroKind; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use thin_vec::ThinVec; use tracing::debug; diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs index 5c4c401af31..7b950b97d30 100644 --- a/compiler/rustc_resolve/src/lib.rs +++ b/compiler/rustc_resolve/src/lib.rs @@ -70,8 +70,7 @@ use rustc_query_system::ich::StableHashingContext; use rustc_session::lint::builtin::PRIVATE_MACRO_USE; use rustc_session::lint::{BuiltinLintDiag, LintBuffer}; use rustc_span::hygiene::{ExpnId, LocalExpnId, MacroKind, SyntaxContext, Transparency}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use smallvec::{SmallVec, smallvec}; use tracing::debug; diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index 43e260aa264..edee19c280a 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -33,8 +33,7 @@ use rustc_session::parse::feature_err; use rustc_span::edit_distance::edit_distance; use rustc_span::edition::Edition; use rustc_span::hygiene::{self, AstPass, ExpnData, ExpnKind, LocalExpnId, MacroKind}; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use crate::Namespace::*; use crate::errors::{ diff --git a/compiler/rustc_resolve/src/rustdoc.rs b/compiler/rustc_resolve/src/rustdoc.rs index 118e224675a..84e43d0e016 100644 --- a/compiler/rustc_resolve/src/rustdoc.rs +++ b/compiler/rustc_resolve/src/rustdoc.rs @@ -10,8 +10,7 @@ use rustc_ast::util::comments::beautify_doc_string; use rustc_data_structures::fx::FxIndexMap; use rustc_middle::ty::TyCtxt; use rustc_span::def_id::DefId; -use rustc_span::symbol::{Symbol, kw, sym}; -use rustc_span::{DUMMY_SP, InnerSpan, Span}; +use rustc_span::{DUMMY_SP, InnerSpan, Span, Symbol, kw, sym}; use thin_vec::ThinVec; use tracing::{debug, trace}; diff --git a/compiler/rustc_session/src/config/cfg.rs b/compiler/rustc_session/src/config/cfg.rs index 43cf1324edd..3426858495b 100644 --- a/compiler/rustc_session/src/config/cfg.rs +++ b/compiler/rustc_session/src/config/cfg.rs @@ -28,7 +28,7 @@ use rustc_ast::ast; use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexSet}; use rustc_lint_defs::BuiltinLintDiag; use rustc_lint_defs::builtin::EXPLICIT_BUILTIN_CFGS_IN_FLAGS; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use rustc_target::spec::{PanicStrategy, RelocModel, SanitizerSet, TARGETS, Target, TargetTuple}; use crate::Session; diff --git a/compiler/rustc_session/src/cstore.rs b/compiler/rustc_session/src/cstore.rs index 3e2cbc18933..beae9dc278c 100644 --- a/compiler/rustc_session/src/cstore.rs +++ b/compiler/rustc_session/src/cstore.rs @@ -13,8 +13,7 @@ use rustc_hir::def_id::{ }; use rustc_hir::definitions::{DefKey, DefPath, DefPathHash, Definitions}; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; -use rustc_span::Span; -use rustc_span::symbol::Symbol; +use rustc_span::{Span, Symbol}; use crate::search_paths::PathKind; use crate::utils::NativeLibKind; diff --git a/compiler/rustc_session/src/output.rs b/compiler/rustc_session/src/output.rs index 2b2ba50d3fb..bd103e86e26 100644 --- a/compiler/rustc_session/src/output.rs +++ b/compiler/rustc_session/src/output.rs @@ -4,8 +4,7 @@ use std::path::Path; use rustc_ast::{self as ast, attr}; use rustc_errors::FatalError; -use rustc_span::symbol::sym; -use rustc_span::{Span, Symbol}; +use rustc_span::{Span, Symbol, sym}; use crate::Session; use crate::config::{self, CrateType, Input, OutFileName, OutputFilenames, OutputType}; diff --git a/compiler/rustc_session/src/parse.rs b/compiler/rustc_session/src/parse.rs index 21c11655110..90361efed84 100644 --- a/compiler/rustc_session/src/parse.rs +++ b/compiler/rustc_session/src/parse.rs @@ -79,7 +79,7 @@ impl SymbolGallery { // todo: this function now accepts `Session` instead of `ParseSess` and should be relocated /// Construct a diagnostic for a language feature error due to the given `span`. -/// The `feature`'s `Symbol` is the one you used in `unstable.rs` and `rustc_span::symbols`. +/// The `feature`'s `Symbol` is the one you used in `unstable.rs` and `rustc_span::symbol`. #[track_caller] pub fn feature_err( sess: &Session, diff --git a/compiler/rustc_smir/src/rustc_smir/context.rs b/compiler/rustc_smir/src/rustc_smir/context.rs index 4b172517fd5..9793a4d4162 100644 --- a/compiler/rustc_smir/src/rustc_smir/context.rs +++ b/compiler/rustc_smir/src/rustc_smir/context.rs @@ -251,8 +251,7 @@ impl<'tcx> Context for TablesWrapper<'tcx> { let mut tables = self.0.borrow_mut(); let tcx = tables.tcx; let did = tables[def_id]; - let attr_name: Vec<_> = - attr.iter().map(|seg| rustc_span::symbol::Symbol::intern(&seg)).collect(); + let attr_name: Vec<_> = attr.iter().map(|seg| rustc_span::Symbol::intern(&seg)).collect(); tcx.get_attrs_by_path(did, &attr_name) .map(|attribute| { let attr_str = rustc_hir_pretty::attribute_to_string(&tcx, attribute); diff --git a/compiler/rustc_span/src/edit_distance.rs b/compiler/rustc_span/src/edit_distance.rs index 4f120db48f0..8a2baaa42e2 100644 --- a/compiler/rustc_span/src/edit_distance.rs +++ b/compiler/rustc_span/src/edit_distance.rs @@ -11,7 +11,7 @@ use std::{cmp, mem}; -use crate::symbol::Symbol; +use crate::Symbol; #[cfg(test)] mod tests; diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index 6e25de847fc..d5c2a337b4c 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -67,7 +67,7 @@ mod span_encoding; pub use span_encoding::{DUMMY_SP, Span}; pub mod symbol; -pub use symbol::{Symbol, sym}; +pub use symbol::{Ident, MacroRulesNormalizedIdent, Symbol, kw, sym}; mod analyze_source_file; pub mod fatal_error; diff --git a/compiler/rustc_symbol_mangling/src/test.rs b/compiler/rustc_symbol_mangling/src/test.rs index 73bd8d7555b..7fda81126c4 100644 --- a/compiler/rustc_symbol_mangling/src/test.rs +++ b/compiler/rustc_symbol_mangling/src/test.rs @@ -7,7 +7,7 @@ use rustc_hir::def_id::LocalDefId; use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::{GenericArgs, Instance, TyCtxt}; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use crate::errors::{Kind, TestOutput}; diff --git a/compiler/rustc_symbol_mangling/src/v0.rs b/compiler/rustc_symbol_mangling/src/v0.rs index 4f568a20332..a801b3e53a1 100644 --- a/compiler/rustc_symbol_mangling/src/v0.rs +++ b/compiler/rustc_symbol_mangling/src/v0.rs @@ -17,7 +17,7 @@ use rustc_middle::ty::{ self, EarlyBinder, FloatTy, GenericArg, GenericArgKind, Instance, IntTy, ReifyReason, Ty, TyCtxt, TypeVisitable, TypeVisitableExt, UintTy, }; -use rustc_span::symbol::kw; +use rustc_span::kw; pub(super) fn mangle<'tcx>( tcx: TyCtxt<'tcx>, diff --git a/compiler/rustc_target/src/asm/mod.rs b/compiler/rustc_target/src/asm/mod.rs index 204d5d53361..1292f46f0c9 100644 --- a/compiler/rustc_target/src/asm/mod.rs +++ b/compiler/rustc_target/src/asm/mod.rs @@ -35,7 +35,7 @@ macro_rules! def_reg_class { impl $arch_regclass { pub fn name(self) -> rustc_span::Symbol { match self { - $(Self::$class => rustc_span::symbol::sym::$class,)* + $(Self::$class => rustc_span::sym::$class,)* } } @@ -511,7 +511,7 @@ impl InlineAsmRegClass { Self::Msp430(r) => r.name(), Self::M68k(r) => r.name(), Self::CSKY(r) => r.name(), - Self::Err => rustc_span::symbol::sym::reg, + Self::Err => rustc_span::sym::reg, } } diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index f7706f094af..ad746d3f26b 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -46,7 +46,7 @@ use rustc_data_structures::fx::FxHashSet; use rustc_fs_util::try_canonicalize; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; -use rustc_span::symbol::{Symbol, kw, sym}; +use rustc_span::{Symbol, kw, sym}; use serde_json::Value; use tracing::debug; diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index acd53ed8008..5372437b0d2 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -3,7 +3,7 @@ //! and Rust adds some features that do not correspond to LLVM features at all. use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; -use rustc_span::symbol::{Symbol, sym}; +use rustc_span::{Symbol, sym}; use crate::spec::Target; diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs index 677b72477a2..2dcf3760d2f 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs @@ -17,8 +17,7 @@ use rustc_middle::ty::{ self, GenericArg, GenericArgKind, GenericArgsRef, InferConst, IsSuggestable, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperFoldable, TypeckResults, }; -use rustc_span::symbol::{Ident, sym}; -use rustc_span::{BytePos, DUMMY_SP, FileName, Span}; +use rustc_span::{BytePos, DUMMY_SP, FileName, Ident, Span, sym}; use tracing::{debug, instrument, warn}; use super::nice_region_error::placeholder_error::Highlighted; diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/named_anon_conflict.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/named_anon_conflict.rs index e0f0f100ed7..5befd81467b 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/named_anon_conflict.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/named_anon_conflict.rs @@ -3,7 +3,7 @@ use rustc_errors::Diag; use rustc_middle::ty; -use rustc_span::symbol::kw; +use rustc_span::kw; use tracing::debug; use crate::error_reporting::infer::nice_region_error::NiceRegionError; diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs index 9844eeacff6..3416a17624e 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs @@ -11,9 +11,8 @@ use rustc_hir::{ use rustc_middle::ty::{ self, AssocItemContainer, StaticLifetimeVisitor, Ty, TyCtxt, TypeSuperVisitable, TypeVisitor, }; -use rustc_span::Span; use rustc_span::def_id::LocalDefId; -use rustc_span::symbol::Ident; +use rustc_span::{Ident, Span}; use tracing::debug; use crate::error_reporting::infer::nice_region_error::NiceRegionError; diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/note.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/note.rs index c4dac1a936c..beae9962f7f 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/note.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/note.rs @@ -3,7 +3,7 @@ use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_middle::traits::ObligationCauseCode; use rustc_middle::ty::error::TypeError; use rustc_middle::ty::{self, IsSuggestable, Region, Ty}; -use rustc_span::symbol::kw; +use rustc_span::kw; use tracing::debug; use super::ObligationCauseAsDiagArg; diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/region.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/region.rs index 0b2665b6e52..babf3ebc5a3 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/region.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/region.rs @@ -12,8 +12,7 @@ use rustc_middle::bug; use rustc_middle::traits::ObligationCauseCode; use rustc_middle::ty::error::TypeError; use rustc_middle::ty::{self, IsSuggestable, Region, Ty, TyCtxt, TypeVisitableExt as _}; -use rustc_span::symbol::kw; -use rustc_span::{BytePos, ErrorGuaranteed, Span, Symbol}; +use rustc_span::{BytePos, ErrorGuaranteed, Span, Symbol, kw}; use rustc_type_ir::Upcast as _; use tracing::{debug, instrument}; diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs index 4fb02f60943..d41f8f46c17 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs @@ -27,8 +27,7 @@ use rustc_middle::ty::{ self, ToPolyTraitRef, TraitRef, Ty, TyCtxt, TypeFoldable, TypeVisitableExt, Upcast, }; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::sym; -use rustc_span::{BytePos, DUMMY_SP, Span, Symbol}; +use rustc_span::{BytePos, DUMMY_SP, Span, Symbol, sym}; use tracing::{debug, instrument}; use super::on_unimplemented::{AppendConstMessage, OnUnimplementedNote}; diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs index d54b8598254..a401fcf3505 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs @@ -13,8 +13,7 @@ use rustc_middle::ty::print::PrintTraitRefExt as _; use rustc_middle::ty::{self, GenericArgsRef, GenericParamDefKind, ToPolyTraitRef, TyCtxt}; use rustc_parse_format::{ParseMode, Parser, Piece, Position}; use rustc_session::lint::builtin::UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES; -use rustc_span::Span; -use rustc_span::symbol::{Symbol, kw, sym}; +use rustc_span::{Span, Symbol, kw, sym}; use tracing::{debug, info}; use {rustc_attr_parsing as attr, rustc_hir as hir}; diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index cc8941b9224..6a8f7f4ee35 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -38,8 +38,9 @@ use rustc_middle::ty::{ }; use rustc_middle::{bug, span_bug}; use rustc_span::def_id::LocalDefId; -use rustc_span::symbol::{Ident, Symbol, kw, sym}; -use rustc_span::{BytePos, DUMMY_SP, DesugaringKind, ExpnKind, MacroKind, Span}; +use rustc_span::{ + BytePos, DUMMY_SP, DesugaringKind, ExpnKind, Ident, MacroKind, Span, Symbol, kw, sym, +}; use tracing::{debug, instrument}; use super::{ diff --git a/compiler/rustc_trait_selection/src/errors.rs b/compiler/rustc_trait_selection/src/errors.rs index a5bfb0d0baa..700c79a7065 100644 --- a/compiler/rustc_trait_selection/src/errors.rs +++ b/compiler/rustc_trait_selection/src/errors.rs @@ -14,8 +14,7 @@ use rustc_hir::{FnRetTy, GenericParamKind, Node}; use rustc_macros::{Diagnostic, Subdiagnostic}; use rustc_middle::ty::print::{PrintTraitRefExt as _, TraitRefPrintOnlyTraitPath}; use rustc_middle::ty::{self, Binder, ClosureKind, FnSig, PolyTraitRef, Region, Ty, TyCtxt}; -use rustc_span::symbol::{Ident, Symbol, kw}; -use rustc_span::{BytePos, Span}; +use rustc_span::{BytePos, Ident, Span, Symbol, kw}; use crate::error_reporting::infer::ObligationCauseAsDiagArg; use crate::error_reporting::infer::need_type_info::UnderspecifiedArgKind; diff --git a/compiler/rustc_trait_selection/src/errors/note_and_explain.rs b/compiler/rustc_trait_selection/src/errors/note_and_explain.rs index 20e7a33a701..1ce5e6ba917 100644 --- a/compiler/rustc_trait_selection/src/errors/note_and_explain.rs +++ b/compiler/rustc_trait_selection/src/errors/note_and_explain.rs @@ -2,8 +2,7 @@ use rustc_errors::{Diag, EmissionGuarantee, IntoDiagArg, SubdiagMessageOp, Subdi use rustc_hir::def_id::LocalDefId; use rustc_middle::bug; use rustc_middle::ty::{self, TyCtxt}; -use rustc_span::Span; -use rustc_span::symbol::kw; +use rustc_span::{Span, kw}; use crate::error_reporting::infer::nice_region_error::find_anon_type; use crate::fluent_generated as fluent; diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs index a98871b2d60..971d3a81102 100644 --- a/compiler/rustc_trait_selection/src/traits/coherence.rs +++ b/compiler/rustc_trait_selection/src/traits/coherence.rs @@ -21,8 +21,7 @@ use rustc_middle::ty::visit::{TypeSuperVisitable, TypeVisitable, TypeVisitableEx use rustc_middle::ty::{self, Ty, TyCtxt, TypingMode}; pub use rustc_next_trait_solver::coherence::*; use rustc_next_trait_solver::solve::SolverDelegateEvalExt; -use rustc_span::symbol::sym; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, Span, sym}; use tracing::{debug, instrument, warn}; use super::ObligationCtxt; diff --git a/compiler/rustc_trait_selection/src/traits/project.rs b/compiler/rustc_trait_selection/src/traits/project.rs index 5f1dbfeedfb..4bccd3450bc 100644 --- a/compiler/rustc_trait_selection/src/traits/project.rs +++ b/compiler/rustc_trait_selection/src/traits/project.rs @@ -17,7 +17,7 @@ use rustc_middle::ty::fold::TypeFoldable; use rustc_middle::ty::visit::TypeVisitableExt; use rustc_middle::ty::{self, Term, Ty, TyCtxt, TypingMode, Upcast}; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::sym; +use rustc_span::sym; use thin_vec::thin_vec; use tracing::{debug, instrument}; diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 32a2d5a6d93..0462b1d9ee7 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -31,8 +31,7 @@ use rustc_middle::ty::{ self, GenericArgsRef, PolyProjectionPredicate, Ty, TyCtxt, TypeFoldable, TypeVisitableExt, TypingMode, Upcast, }; -use rustc_span::Symbol; -use rustc_span::symbol::sym; +use rustc_span::{Symbol, sym}; use tracing::{debug, instrument, trace}; use self::EvaluationResult::*; diff --git a/compiler/rustc_transmute/src/lib.rs b/compiler/rustc_transmute/src/lib.rs index f7651e49cdd..ad86813c87e 100644 --- a/compiler/rustc_transmute/src/lib.rs +++ b/compiler/rustc_transmute/src/lib.rs @@ -131,7 +131,7 @@ mod rustc { c: Const<'tcx>, ) -> Option { use rustc_middle::ty::ScalarInt; - use rustc_span::symbol::sym; + use rustc_span::sym; let Some((cv, ty)) = c.try_to_valtree() else { return None; diff --git a/compiler/rustc_ty_utils/src/assoc.rs b/compiler/rustc_ty_utils/src/assoc.rs index f97e8d48c8e..8f9f66db1bd 100644 --- a/compiler/rustc_ty_utils/src/assoc.rs +++ b/compiler/rustc_ty_utils/src/assoc.rs @@ -6,7 +6,7 @@ use rustc_hir::intravisit::{self, Visitor}; use rustc_middle::query::Providers; use rustc_middle::ty::{self, ImplTraitInTraitData, TyCtxt}; use rustc_middle::{bug, span_bug}; -use rustc_span::symbol::kw; +use rustc_span::kw; pub(crate) fn provide(providers: &mut Providers) { *providers = Providers { diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index 0d656f1b63b..7c7c3803ad9 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -23,8 +23,7 @@ use rustc_middle::ty::{ TypeVisitableExt, }; use rustc_session::{DataTypeKind, FieldInfo, FieldKind, SizeKind, VariantInfo}; -use rustc_span::sym; -use rustc_span::symbol::Symbol; +use rustc_span::{Symbol, sym}; use tracing::{debug, instrument, trace}; use {rustc_abi as abi, rustc_hir as hir}; -- cgit 1.4.1-3-g733a5 From 21de42bf8ddd0f39c766c7705990152302ae1f3b Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sun, 1 Dec 2024 13:12:43 +0100 Subject: Variants::Single: do not use invalid VariantIdx for uninhabited enums --- compiler/rustc_abi/src/layout.rs | 14 +-- compiler/rustc_abi/src/lib.rs | 8 +- .../rustc_codegen_cranelift/src/discriminant.rs | 5 +- compiler/rustc_codegen_gcc/src/type_of.rs | 6 +- .../src/debuginfo/metadata/enums/cpp_like.rs | 4 +- compiler/rustc_codegen_llvm/src/type_of.rs | 8 +- compiler/rustc_codegen_ssa/src/mir/place.rs | 3 +- .../rustc_const_eval/src/interpret/discriminant.rs | 23 ++-- .../rustc_const_eval/src/interpret/validity.rs | 4 +- compiler/rustc_middle/src/mir/interpret/error.rs | 2 +- compiler/rustc_middle/src/ty/layout.rs | 13 ++- compiler/rustc_mir_transform/src/jump_threading.rs | 31 ++---- .../src/unreachable_enum_branching.rs | 6 +- compiler/rustc_smir/src/rustc_smir/convert/abi.rs | 6 +- compiler/rustc_transmute/src/layout/tree.rs | 10 +- compiler/rustc_ty_utils/src/layout.rs | 14 ++- compiler/rustc_ty_utils/src/layout/invariant.rs | 122 ++++++++++++--------- compiler/stable_mir/src/abi.rs | 1 + .../rust-analyzer/crates/hir-ty/src/layout.rs | 8 +- .../rust-analyzer/crates/hir-ty/src/mir/eval.rs | 3 +- src/tools/rust-analyzer/crates/hir-ty/src/utils.rs | 2 +- .../set_no_discriminant.f.JumpThreading.diff | 3 +- .../set_no_discriminant.generic.JumpThreading.diff | 3 +- tests/mir-opt/set_no_discriminant.rs | 21 ++-- tests/ui/abi/c-zst.aarch64-darwin.stderr | 8 +- tests/ui/abi/c-zst.powerpc-linux.stderr | 8 +- tests/ui/abi/c-zst.s390x-linux.stderr | 8 +- tests/ui/abi/c-zst.sparc64-linux.stderr | 8 +- tests/ui/abi/c-zst.x86_64-linux.stderr | 8 +- tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr | 8 +- tests/ui/abi/debug.stderr | 96 ++++++++++++---- tests/ui/abi/sysv64-zst.stderr | 8 +- tests/ui/abi/win64-zst.x86_64-linux.stderr | 8 +- tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr | 8 +- tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr | 8 +- tests/ui/layout/debug.stderr | 64 ++++++++--- tests/ui/layout/hexagon-enum.stderr | 20 +++- ...96158-scalarpair-payload-might-be-uninit.stderr | 48 ++++++-- .../ui/layout/issue-96185-overaligned-enum.stderr | 16 ++- tests/ui/layout/thumb-enum.stderr | 20 +++- tests/ui/layout/zero-sized-array-enum-niche.stderr | 36 ++++-- ...-dead-variants.aarch64-unknown-linux-gnu.stderr | 20 +++- .../repr-c-dead-variants.armebv7r-none-eabi.stderr | 20 +++- ...epr-c-dead-variants.i686-pc-windows-msvc.stderr | 20 +++- ...c-dead-variants.x86_64-unknown-linux-gnu.stderr | 20 +++- tests/ui/repr/repr-c-int-dead-variants.stderr | 20 +++- tests/ui/type/pattern_types/range_patterns.stderr | 28 +++-- 47 files changed, 548 insertions(+), 280 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs index e6d66f608da..f2b50ae408e 100644 --- a/compiler/rustc_abi/src/layout.rs +++ b/compiler/rustc_abi/src/layout.rs @@ -120,7 +120,7 @@ impl LayoutCalculator { .max_by_key(|niche| niche.available(dl)); LayoutData { - variants: Variants::Single { index: VariantIdx::new(0) }, + variants: Variants::Single { index: Some(VariantIdx::new(0)) }, fields: FieldsShape::Arbitrary { offsets: [Size::ZERO, b_offset].into(), memory_index: [0, 1].into(), @@ -214,7 +214,7 @@ impl LayoutCalculator { ) -> LayoutData { let dl = self.cx.data_layout(); LayoutData { - variants: Variants::Single { index: VariantIdx::new(0) }, + variants: Variants::Single { index: None }, fields: FieldsShape::Primitive, backend_repr: BackendRepr::Uninhabited, largest_niche: None, @@ -385,7 +385,7 @@ impl LayoutCalculator { }; Ok(LayoutData { - variants: Variants::Single { index: only_variant_idx }, + variants: Variants::Single { index: Some(only_variant_idx) }, fields: FieldsShape::Union(union_field_count), backend_repr: abi, largest_niche: None, @@ -424,7 +424,7 @@ impl LayoutCalculator { }; let mut st = self.univariant(&variants[v], repr, kind)?; - st.variants = Variants::Single { index: v }; + st.variants = Variants::Single { index: Some(v) }; if is_unsafe_cell { let hide_niches = |scalar: &mut _| match scalar { @@ -543,7 +543,7 @@ impl LayoutCalculator { .iter_enumerated() .map(|(j, v)| { let mut st = self.univariant(v, repr, StructKind::AlwaysSized).ok()?; - st.variants = Variants::Single { index: j }; + st.variants = Variants::Single { index: Some(j) }; align = align.max(st.align); max_repr_align = max_repr_align.max(st.max_repr_align); @@ -736,7 +736,7 @@ impl LayoutCalculator { repr, StructKind::Prefixed(min_ity.size(), prefix_align), )?; - st.variants = Variants::Single { index: i }; + st.variants = Variants::Single { index: Some(i) }; // Find the first field we can't move later // to make room for a larger discriminant. for field_idx in st.fields.index_by_increasing_offset() { @@ -1344,7 +1344,7 @@ impl LayoutCalculator { }; Ok(LayoutData { - variants: Variants::Single { index: VariantIdx::new(0) }, + variants: Variants::Single { index: Some(VariantIdx::new(0)) }, fields: FieldsShape::Arbitrary { offsets, memory_index }, backend_repr: abi, largest_niche, diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 15a27c0b6ee..242e2cadd18 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -1506,9 +1506,9 @@ impl BackendRepr { pub enum Variants { /// Single enum variants, structs/tuples, unions, and all non-ADTs. Single { - /// Always 0 for non-enums/generators. - /// For enums without a variant, this is an invalid index! - index: VariantIdx, + /// Always `Some(0)` for types without variants (i.e., everything except for `!`, enums, and + /// generators). `None` indicates an uninhabited type; this is used for zero-variant enums. + index: Option, }, /// Enum-likes with more than one variant: each variant comes with @@ -1706,7 +1706,7 @@ impl LayoutData { let size = scalar.size(cx); let align = scalar.align(cx); LayoutData { - variants: Variants::Single { index: VariantIdx::new(0) }, + variants: Variants::Single { index: Some(VariantIdx::new(0)) }, fields: FieldsShape::Primitive, backend_repr: BackendRepr::Scalar(scalar), largest_niche, diff --git a/compiler/rustc_codegen_cranelift/src/discriminant.rs b/compiler/rustc_codegen_cranelift/src/discriminant.rs index 45794a42665..055063c876f 100644 --- a/compiler/rustc_codegen_cranelift/src/discriminant.rs +++ b/compiler/rustc_codegen_cranelift/src/discriminant.rs @@ -19,7 +19,7 @@ pub(crate) fn codegen_set_discriminant<'tcx>( } match layout.variants { Variants::Single { index } => { - assert_eq!(index, variant_index); + assert_eq!(index.unwrap(), variant_index); } Variants::Multiple { tag: _, @@ -86,9 +86,10 @@ pub(crate) fn codegen_get_discriminant<'tcx>( let (tag_scalar, tag_field, tag_encoding) = match &layout.variants { Variants::Single { index } => { + let index = index.unwrap(); let discr_val = layout .ty - .discriminant_for_variant(fx.tcx, *index) + .discriminant_for_variant(fx.tcx, index) .map_or(u128::from(index.as_u32()), |discr| discr.val); let val = match dest_layout.ty.kind() { diff --git a/compiler/rustc_codegen_gcc/src/type_of.rs b/compiler/rustc_codegen_gcc/src/type_of.rs index 0efdf36da48..426d28f4ed7 100644 --- a/compiler/rustc_codegen_gcc/src/type_of.rs +++ b/compiler/rustc_codegen_gcc/src/type_of.rs @@ -99,14 +99,14 @@ fn uncached_gcc_type<'gcc, 'tcx>( if !cx.sess().fewer_names() => { let mut name = with_no_trimmed_paths!(layout.ty.to_string()); - if let (&ty::Adt(def, _), &Variants::Single { index }) = + if let (&ty::Adt(def, _), &Variants::Single { index: Some(index) }) = (layout.ty.kind(), &layout.variants) { if def.is_enum() && !def.variants().is_empty() { write!(&mut name, "::{}", def.variant(index).name).unwrap(); } } - if let (&ty::Coroutine(_, _), &Variants::Single { index }) = + if let (&ty::Coroutine(_, _), &Variants::Single { index: Some(index) }) = (layout.ty.kind(), &layout.variants) { write!(&mut name, "::{}", ty::CoroutineArgs::variant_name(index)).unwrap(); @@ -230,7 +230,7 @@ impl<'tcx> LayoutGccExt<'tcx> for TyAndLayout<'tcx> { // Check the cache. let variant_index = match self.variants { - Variants::Single { index } => Some(index), + Variants::Single { index } => index, _ => None, }; let cached_type = cx.types.borrow().get(&(self.ty, variant_index)).cloned(); diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs index d374767f187..8ec83fa7c92 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs @@ -213,11 +213,11 @@ pub(super) fn build_enum_type_di_node<'ll, 'tcx>( |cx, enum_type_di_node| { match enum_type_and_layout.variants { Variants::Single { index: variant_index } => { - if enum_adt_def.variants().is_empty() { + let Some(variant_index) = variant_index else { // Uninhabited enums have Variants::Single. We don't generate // any members for them. return smallvec![]; - } + }; build_single_variant_union_fields( cx, diff --git a/compiler/rustc_codegen_llvm/src/type_of.rs b/compiler/rustc_codegen_llvm/src/type_of.rs index 2b05e24a7ba..833a687fe74 100644 --- a/compiler/rustc_codegen_llvm/src/type_of.rs +++ b/compiler/rustc_codegen_llvm/src/type_of.rs @@ -35,14 +35,14 @@ fn uncached_llvm_type<'a, 'tcx>( if !cx.sess().fewer_names() => { let mut name = with_no_visible_paths!(with_no_trimmed_paths!(layout.ty.to_string())); - if let (&ty::Adt(def, _), &Variants::Single { index }) = + if let (&ty::Adt(def, _), &Variants::Single { index: Some(index) }) = (layout.ty.kind(), &layout.variants) { - if def.is_enum() && !def.variants().is_empty() { + if def.is_enum() { write!(&mut name, "::{}", def.variant(index).name).unwrap(); } } - if let (&ty::Coroutine(_, _), &Variants::Single { index }) = + if let (&ty::Coroutine(_, _), &Variants::Single { index: Some(index) }) = (layout.ty.kind(), &layout.variants) { write!(&mut name, "::{}", ty::CoroutineArgs::variant_name(index)).unwrap(); @@ -216,7 +216,7 @@ impl<'tcx> LayoutLlvmExt<'tcx> for TyAndLayout<'tcx> { // Check the cache. let variant_index = match self.variants { - Variants::Single { index } => Some(index), + Variants::Single { index } => index, _ => None, }; if let Some(llty) = cx.type_lowering.borrow().get(&(self.ty, variant_index)) { diff --git a/compiler/rustc_codegen_ssa/src/mir/place.rs b/compiler/rustc_codegen_ssa/src/mir/place.rs index a9e80e27ed4..cef3d8255a0 100644 --- a/compiler/rustc_codegen_ssa/src/mir/place.rs +++ b/compiler/rustc_codegen_ssa/src/mir/place.rs @@ -244,6 +244,7 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { } let (tag_scalar, tag_encoding, tag_field) = match self.layout.variants { Variants::Single { index } => { + let index = index.unwrap(); // we already checked `is_uninhabited` let discr_val = self .layout .ty @@ -366,7 +367,7 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { } match self.layout.variants { Variants::Single { index } => { - assert_eq!(index, variant_index); + assert_eq!(index.unwrap(), variant_index); } Variants::Multiple { tag_encoding: TagEncoding::Direct, tag_field, .. } => { let ptr = self.project_field(bx, tag_field); diff --git a/compiler/rustc_const_eval/src/interpret/discriminant.rs b/compiler/rustc_const_eval/src/interpret/discriminant.rs index 6faac1582ab..6cfd1613229 100644 --- a/compiler/rustc_const_eval/src/interpret/discriminant.rs +++ b/compiler/rustc_const_eval/src/interpret/discriminant.rs @@ -44,7 +44,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { } } - /// Read discriminant, return the runtime value as well as the variant index. + /// Read discriminant, return the variant index. /// Can also legally be called on non-enums (e.g. through the discriminant_value intrinsic)! /// /// Will never return an uninhabited variant. @@ -66,21 +66,14 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { // straight-forward (`TagEncoding::Direct`) or with a niche (`TagEncoding::Niche`). let (tag_scalar_layout, tag_encoding, tag_field) = match op.layout().variants { Variants::Single { index } => { - // Do some extra checks on enums. - if ty.is_enum() { - // Hilariously, `Single` is used even for 0-variant enums. - // (See https://github.com/rust-lang/rust/issues/89765). - if ty.ty_adt_def().unwrap().variants().is_empty() { - throw_ub!(UninhabitedEnumVariantRead(index)) - } + if op.layout().is_uninhabited() { // For consistency with `write_discriminant`, and to make sure that // `project_downcast` cannot fail due to strange layouts, we declare immediate UB - // for uninhabited variants. - if op.layout().for_variant(self, index).is_uninhabited() { - throw_ub!(UninhabitedEnumVariantRead(index)) - } + // for uninhabited enums. + throw_ub!(UninhabitedEnumVariantRead(None)); } - return interp_ok(index); + // Since the type is inhabited, there must be an index. + return interp_ok(index.unwrap()); } Variants::Multiple { tag, ref tag_encoding, tag_field, .. } => { (tag, tag_encoding, tag_field) @@ -199,11 +192,13 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { // `uninhabited_enum_branching` MIR pass. It also ensures consistency with // `write_discriminant`. if op.layout().for_variant(self, index).is_uninhabited() { - throw_ub!(UninhabitedEnumVariantRead(index)) + throw_ub!(UninhabitedEnumVariantRead(Some(index))) } interp_ok(index) } + /// Read discriminant, return the user-visible discriminant. + /// Can also legally be called on non-enums (e.g. through the discriminant_value intrinsic)! pub fn discriminant_for_variant( &self, ty: Ty<'tcx>, diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 8e18b243906..832183b42dc 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -342,7 +342,9 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValidityVisitor<'rt, 'tcx, M> { match layout.variants { Variants::Single { index } => { // Inside a variant - PathElem::Field(def.variant(index).fields[FieldIdx::from_usize(field)].name) + PathElem::Field( + def.variant(index.unwrap()).fields[FieldIdx::from_usize(field)].name, + ) } Variants::Multiple { .. } => bug!("we handled variants above"), } diff --git a/compiler/rustc_middle/src/mir/interpret/error.rs b/compiler/rustc_middle/src/mir/interpret/error.rs index fbada6ec405..37328470aa7 100644 --- a/compiler/rustc_middle/src/mir/interpret/error.rs +++ b/compiler/rustc_middle/src/mir/interpret/error.rs @@ -392,7 +392,7 @@ pub enum UndefinedBehaviorInfo<'tcx> { /// A discriminant of an uninhabited enum variant is written. UninhabitedEnumVariantWritten(VariantIdx), /// An uninhabited enum variant is projected. - UninhabitedEnumVariantRead(VariantIdx), + UninhabitedEnumVariantRead(Option), /// Trying to set discriminant to the niched variant, but the value does not match. InvalidNichedEnumVariantWritten { enum_ty: Ty<'tcx> }, /// ABI-incompatible argument types. diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index ad1680ed3a2..5f7b30b5d04 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -734,7 +734,7 @@ where let layout = match this.variants { Variants::Single { index } // If all variants but one are uninhabited, the variant layout is the enum layout. - if index == variant_index && + if index == Some(variant_index) && // Don't confuse variants of uninhabited enums with the enum itself. // For more details see https://github.com/rust-lang/rust/issues/69763. this.fields != FieldsShape::Primitive => @@ -743,6 +743,8 @@ where } Variants::Single { index } => { + // `Single` variant enums *can* have other variants, but those are uninhabited. + let tcx = cx.tcx(); let typing_env = cx.typing_env(); @@ -758,7 +760,7 @@ where _ => bug!("`ty_and_layout_for_variant` on unexpected type {}", this.ty), }; tcx.mk_layout(LayoutData { - variants: Variants::Single { index: variant_index }, + variants: Variants::Single { index: Some(variant_index) }, fields: match NonZero::new(fields) { Some(fields) => FieldsShape::Union(fields), None => FieldsShape::Arbitrary { offsets: IndexVec::new(), memory_index: IndexVec::new() }, @@ -775,7 +777,7 @@ where Variants::Multiple { ref variants, .. } => cx.tcx().mk_layout(variants[variant_index].clone()), }; - assert_eq!(*layout.variants(), Variants::Single { index: variant_index }); + assert_eq!(*layout.variants(), Variants::Single { index: Some(variant_index) }); TyAndLayout { ty: this.ty, layout } } @@ -905,7 +907,7 @@ where Variants::Single { index } => TyMaybeWithLayout::Ty( args.as_coroutine() .state_tys(def_id, tcx) - .nth(index.as_usize()) + .nth(index.unwrap().as_usize()) .unwrap() .nth(i) .unwrap(), @@ -924,7 +926,8 @@ where ty::Adt(def, args) => { match this.variants { Variants::Single { index } => { - let field = &def.variant(index).fields[FieldIdx::from_usize(i)]; + let field = + &def.variant(index.unwrap()).fields[FieldIdx::from_usize(i)]; TyMaybeWithLayout::Ty(field.ty(tcx, args)) } diff --git a/compiler/rustc_mir_transform/src/jump_threading.rs b/compiler/rustc_mir_transform/src/jump_threading.rs index beed007589b..8feb90ff7a0 100644 --- a/compiler/rustc_mir_transform/src/jump_threading.rs +++ b/compiler/rustc_mir_transform/src/jump_threading.rs @@ -35,7 +35,6 @@ //! Likewise, applying the optimisation can create a lot of new MIR, so we bound the instruction //! cost by `MAX_COST`. -use rustc_abi::{TagEncoding, Variants}; use rustc_arena::DroplessArena; use rustc_const_eval::const_eval::DummyMachine; use rustc_const_eval::interpret::{ImmTy, Immediate, InterpCx, OpTy, Projectable}; @@ -565,31 +564,15 @@ impl<'a, 'tcx> TOFinder<'a, 'tcx> { StatementKind::SetDiscriminant { box place, variant_index } => { let Some(discr_target) = self.map.find_discr(place.as_ref()) else { return }; let enum_ty = place.ty(self.body, self.tcx).ty; - // `SetDiscriminant` may be a no-op if the assigned variant is the untagged variant - // of a niche encoding. If we cannot ensure that we write to the discriminant, do - // nothing. - let Ok(enum_layout) = self.ecx.layout_of(enum_ty) else { + // `SetDiscriminant` guarantees that the discriminant is now `variant_index`. + // Even if the discriminant write does nothing due to niches, it is UB to set the + // discriminant when the data does not encode the desired discriminant. + let Some(discr) = + self.ecx.discriminant_for_variant(enum_ty, *variant_index).discard_err() + else { return; }; - let writes_discriminant = match enum_layout.variants { - Variants::Single { index } => { - assert_eq!(index, *variant_index); - true - } - Variants::Multiple { tag_encoding: TagEncoding::Direct, .. } => true, - Variants::Multiple { - tag_encoding: TagEncoding::Niche { untagged_variant, .. }, - .. - } => *variant_index != untagged_variant, - }; - if writes_discriminant { - let Some(discr) = - self.ecx.discriminant_for_variant(enum_ty, *variant_index).discard_err() - else { - return; - }; - self.process_immediate(bb, discr_target, discr, state); - } + self.process_immediate(bb, discr_target, discr, state); } // If we expect `lhs ?= true`, we have an opportunity if we assume `lhs == true`. StatementKind::Intrinsic(box NonDivergingIntrinsic::Assume( diff --git a/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs b/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs index 57e255b7c32..0ce3955163b 100644 --- a/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs +++ b/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs @@ -54,7 +54,11 @@ fn variant_discriminants<'tcx>( tcx: TyCtxt<'tcx>, ) -> FxHashSet { match &layout.variants { - Variants::Single { index } => { + Variants::Single { index: None } => { + // Uninhabited, no valid discriminant. + FxHashSet::default() + } + Variants::Single { index: Some(index) } => { let mut res = FxHashSet::default(); res.insert( ty.discriminant_for_variant(tcx, *index) diff --git a/compiler/rustc_smir/src/rustc_smir/convert/abi.rs b/compiler/rustc_smir/src/rustc_smir/convert/abi.rs index af24fd23f50..2717f4ab62f 100644 --- a/compiler/rustc_smir/src/rustc_smir/convert/abi.rs +++ b/compiler/rustc_smir/src/rustc_smir/convert/abi.rs @@ -164,9 +164,9 @@ impl<'tcx> Stable<'tcx> for rustc_abi::Variants) -> Self::T { match self { - rustc_abi::Variants::Single { index } => { - VariantsShape::Single { index: index.stable(tables) } - } + rustc_abi::Variants::Single { index } => VariantsShape::Single { + index: index.unwrap_or(rustc_abi::VariantIdx::from_u32(0)).stable(tables), + }, rustc_abi::Variants::Multiple { tag, tag_encoding, tag_field, variants } => { VariantsShape::Multiple { tag: tag.stable(tables), diff --git a/compiler/rustc_transmute/src/layout/tree.rs b/compiler/rustc_transmute/src/layout/tree.rs index 83463babc4f..049f4734e7b 100644 --- a/compiler/rustc_transmute/src/layout/tree.rs +++ b/compiler/rustc_transmute/src/layout/tree.rs @@ -339,14 +339,12 @@ pub(crate) mod rustc { match layout.variants() { Variants::Single { index } => { - // Hilariously, `Single` is used even for 0-variant enums; - // `index` is just junk in that case. - if ty.ty_adt_def().unwrap().variants().is_empty() { - Ok(Self::uninhabited()) - } else { + if let Some(index) = index { // `Variants::Single` on enums with variants denotes that // the enum delegates its layout to the variant at `index`. layout_of_variant(*index, None) + } else { + Ok(Self::uninhabited()) } } Variants::Multiple { tag, tag_encoding, tag_field, .. } => { @@ -504,7 +502,7 @@ pub(crate) mod rustc { ty::Adt(def, args) => { match layout.variants { Variants::Single { index } => { - let field = &def.variant(index).fields[i]; + let field = &def.variant(index.unwrap()).fields[i]; field.ty(cx.tcx(), args) } // Discriminant field for enums (where applicable). diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index 7c7c3803ad9..b393190a493 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -339,7 +339,7 @@ fn layout_of_uncached<'tcx>( let largest_niche = if count != 0 { element.largest_niche } else { None }; tcx.mk_layout(LayoutData { - variants: Variants::Single { index: FIRST_VARIANT }, + variants: Variants::Single { index: Some(FIRST_VARIANT) }, fields: FieldsShape::Array { stride: element.size, count }, backend_repr: abi, largest_niche, @@ -352,7 +352,7 @@ fn layout_of_uncached<'tcx>( ty::Slice(element) => { let element = cx.layout_of(element)?; tcx.mk_layout(LayoutData { - variants: Variants::Single { index: FIRST_VARIANT }, + variants: Variants::Single { index: Some(FIRST_VARIANT) }, fields: FieldsShape::Array { stride: element.size, count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, @@ -363,7 +363,7 @@ fn layout_of_uncached<'tcx>( }) } ty::Str => tcx.mk_layout(LayoutData { - variants: Variants::Single { index: FIRST_VARIANT }, + variants: Variants::Single { index: Some(FIRST_VARIANT) }, fields: FieldsShape::Array { stride: Size::from_bytes(1), count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, @@ -534,7 +534,7 @@ fn layout_of_uncached<'tcx>( }; tcx.mk_layout(LayoutData { - variants: Variants::Single { index: FIRST_VARIANT }, + variants: Variants::Single { index: Some(FIRST_VARIANT) }, fields, backend_repr: abi, largest_niche: e_ly.largest_niche, @@ -926,7 +926,7 @@ fn coroutine_layout<'tcx>( &ReprOptions::default(), StructKind::Prefixed(prefix_size, prefix_align.abi), )?; - variant.variants = Variants::Single { index }; + variant.variants = Variants::Single { index: Some(index) }; let FieldsShape::Arbitrary { offsets, memory_index } = variant.fields else { bug!(); @@ -1105,7 +1105,9 @@ fn variant_info_for_adt<'tcx>( match layout.variants { Variants::Single { index } => { - if !adt_def.variants().is_empty() && layout.fields != FieldsShape::Primitive { + if let Some(index) = index + && layout.fields != FieldsShape::Primitive + { debug!("print-type-size `{:#?}` variant {}", layout, adt_def.variant(index).name); let variant_def = &adt_def.variant(index); let fields: Vec<_> = variant_def.fields.iter().map(|f| f.name).collect(); diff --git a/compiler/rustc_ty_utils/src/layout/invariant.rs b/compiler/rustc_ty_utils/src/layout/invariant.rs index f39b87622f4..7e2375154c0 100644 --- a/compiler/rustc_ty_utils/src/layout/invariant.rs +++ b/compiler/rustc_ty_utils/src/layout/invariant.rs @@ -241,63 +241,81 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou check_layout_abi(cx, layout); - if let Variants::Multiple { variants, tag, tag_encoding, .. } = &layout.variants { - if let TagEncoding::Niche { niche_start, untagged_variant, niche_variants } = tag_encoding { - let niche_size = tag.size(cx); - assert!(*niche_start <= niche_size.unsigned_int_max()); - for (idx, variant) in variants.iter_enumerated() { - // Ensure all inhabited variants are accounted for. - if !variant.is_uninhabited() { - assert!(idx == *untagged_variant || niche_variants.contains(&idx)); - } - } + match &layout.variants { + Variants::Single { index: None } => { + assert!(layout.is_uninhabited()); } - for variant in variants.iter() { - // No nested "multiple". - assert_matches!(variant.variants, Variants::Single { .. }); - // Variants should have the same or a smaller size as the full thing, - // and same for alignment. - if variant.size > layout.size { - bug!( - "Type with size {} bytes has variant with size {} bytes: {layout:#?}", - layout.size.bytes(), - variant.size.bytes(), - ) + Variants::Single { index: Some(idx) } => { + if let Some(variants) = layout.ty.variant_range(tcx) { + assert!(variants.contains(idx)); + } else { + // Types without variants use `0` as dummy variant index. + assert!(idx.as_u32() == 0); } - if variant.align.abi > layout.align.abi { - bug!( - "Type with alignment {} bytes has variant with alignment {} bytes: {layout:#?}", - layout.align.abi.bytes(), - variant.align.abi.bytes(), - ) - } - // Skip empty variants. - if variant.size == Size::ZERO || variant.fields.count() == 0 || variant.is_uninhabited() + } + Variants::Multiple { variants, tag, tag_encoding, .. } => { + if let TagEncoding::Niche { niche_start, untagged_variant, niche_variants } = + tag_encoding { - // These are never actually accessed anyway, so we can skip the coherence check - // for them. They also fail that check, since they have - // `Aggregate`/`Uninhabited` ABI even when the main type is - // `Scalar`/`ScalarPair`. (Note that sometimes, variants with fields have size - // 0, and sometimes, variants without fields have non-0 size.) - continue; + let niche_size = tag.size(cx); + assert!(*niche_start <= niche_size.unsigned_int_max()); + for (idx, variant) in variants.iter_enumerated() { + // Ensure all inhabited variants are accounted for. + if !variant.is_uninhabited() { + assert!(idx == *untagged_variant || niche_variants.contains(&idx)); + } + } } - // The top-level ABI and the ABI of the variants should be coherent. - let scalar_coherent = - |s1: Scalar, s2: Scalar| s1.size(cx) == s2.size(cx) && s1.align(cx) == s2.align(cx); - let abi_coherent = match (layout.backend_repr, variant.backend_repr) { - (BackendRepr::Scalar(s1), BackendRepr::Scalar(s2)) => scalar_coherent(s1, s2), - (BackendRepr::ScalarPair(a1, b1), BackendRepr::ScalarPair(a2, b2)) => { - scalar_coherent(a1, a2) && scalar_coherent(b1, b2) + for variant in variants.iter() { + // No nested "multiple". + assert_matches!(variant.variants, Variants::Single { .. }); + // Variants should have the same or a smaller size as the full thing, + // and same for alignment. + if variant.size > layout.size { + bug!( + "Type with size {} bytes has variant with size {} bytes: {layout:#?}", + layout.size.bytes(), + variant.size.bytes(), + ) + } + if variant.align.abi > layout.align.abi { + bug!( + "Type with alignment {} bytes has variant with alignment {} bytes: {layout:#?}", + layout.align.abi.bytes(), + variant.align.abi.bytes(), + ) + } + // Skip empty variants. + if variant.size == Size::ZERO + || variant.fields.count() == 0 + || variant.is_uninhabited() + { + // These are never actually accessed anyway, so we can skip the coherence check + // for them. They also fail that check, since they have + // `Aggregate`/`Uninhabited` ABI even when the main type is + // `Scalar`/`ScalarPair`. (Note that sometimes, variants with fields have size + // 0, and sometimes, variants without fields have non-0 size.) + continue; + } + // The top-level ABI and the ABI of the variants should be coherent. + let scalar_coherent = |s1: Scalar, s2: Scalar| { + s1.size(cx) == s2.size(cx) && s1.align(cx) == s2.align(cx) + }; + let abi_coherent = match (layout.backend_repr, variant.backend_repr) { + (BackendRepr::Scalar(s1), BackendRepr::Scalar(s2)) => scalar_coherent(s1, s2), + (BackendRepr::ScalarPair(a1, b1), BackendRepr::ScalarPair(a2, b2)) => { + scalar_coherent(a1, a2) && scalar_coherent(b1, b2) + } + (BackendRepr::Uninhabited, _) => true, + (BackendRepr::Memory { .. }, _) => true, + _ => false, + }; + if !abi_coherent { + bug!( + "Variant ABI is incompatible with top-level ABI:\nvariant={:#?}\nTop-level: {layout:#?}", + variant + ); } - (BackendRepr::Uninhabited, _) => true, - (BackendRepr::Memory { .. }, _) => true, - _ => false, - }; - if !abi_coherent { - bug!( - "Variant ABI is incompatible with top-level ABI:\nvariant={:#?}\nTop-level: {layout:#?}", - variant - ); } } } diff --git a/compiler/stable_mir/src/abi.rs b/compiler/stable_mir/src/abi.rs index 2ac30b5aff1..cf28a0c5885 100644 --- a/compiler/stable_mir/src/abi.rs +++ b/compiler/stable_mir/src/abi.rs @@ -181,6 +181,7 @@ impl FieldsShape { #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize)] pub enum VariantsShape { /// Single enum variants, structs/tuples, unions, and all non-ADTs. + // FIXME: needs to become `Option` like in the internal type. Single { index: VariantIdx }, /// Enum-likes with more than one inhabited variant: each variant comes with diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs index 0c1f63880cd..08026f11c83 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs @@ -189,7 +189,7 @@ fn layout_of_simd_ty( }; Ok(Arc::new(Layout { - variants: Variants::Single { index: struct_variant_idx() }, + variants: Variants::Single { index: Some(struct_variant_idx()) }, fields, backend_repr: BackendRepr::Vector { element: e_abi, count: e_len }, largest_niche: e_ly.largest_niche, @@ -305,7 +305,7 @@ pub fn layout_of_ty_query( let largest_niche = if count != 0 { element.largest_niche } else { None }; Layout { - variants: Variants::Single { index: struct_variant_idx() }, + variants: Variants::Single { index: Some(struct_variant_idx()) }, fields: FieldsShape::Array { stride: element.size, count }, backend_repr, largest_niche, @@ -318,7 +318,7 @@ pub fn layout_of_ty_query( TyKind::Slice(element) => { let element = db.layout_of_ty(element.clone(), trait_env)?; Layout { - variants: Variants::Single { index: struct_variant_idx() }, + variants: Variants::Single { index: Some(struct_variant_idx()) }, fields: FieldsShape::Array { stride: element.size, count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, @@ -329,7 +329,7 @@ pub fn layout_of_ty_query( } } TyKind::Str => Layout { - variants: Variants::Single { index: struct_variant_idx() }, + variants: Variants::Single { index: Some(struct_variant_idx()) }, fields: FieldsShape::Array { stride: Size::from_bytes(1), count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs index d7029651fc1..9375853e915 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs @@ -1639,7 +1639,8 @@ impl Evaluator<'_> { }; match &layout.variants { Variants::Single { index } => { - let r = self.const_eval_discriminant(self.db.enum_data(e).variants[index.0].0)?; + let r = self + .const_eval_discriminant(self.db.enum_data(e).variants[index.unwrap().0].0)?; Ok(r) } Variants::Multiple { tag, tag_encoding, variants, .. } => { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/utils.rs b/src/tools/rust-analyzer/crates/hir-ty/src/utils.rs index 06719b09f73..43ed6a06f42 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/utils.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/utils.rs @@ -335,7 +335,7 @@ pub(crate) fn detect_variant_from_bytes<'a>( ) -> Option<(EnumVariantId, &'a Layout)> { let (var_id, var_layout) = match &layout.variants { hir_def::layout::Variants::Single { index } => { - (db.enum_data(e).variants[index.0].0, layout) + (db.enum_data(e).variants[index.unwrap().0].0, layout) } hir_def::layout::Variants::Multiple { tag, tag_encoding, variants, .. } => { let size = tag.size(target_data_layout).bytes_usize(); diff --git a/tests/mir-opt/set_no_discriminant.f.JumpThreading.diff b/tests/mir-opt/set_no_discriminant.f.JumpThreading.diff index 3d9852aef65..992b16fabf6 100644 --- a/tests/mir-opt/set_no_discriminant.f.JumpThreading.diff +++ b/tests/mir-opt/set_no_discriminant.f.JumpThreading.diff @@ -10,7 +10,8 @@ _2 = E::::A; discriminant(_2) = 1; _1 = discriminant(_2); - switchInt(copy _1) -> [0: bb1, otherwise: bb2]; +- switchInt(copy _1) -> [0: bb1, otherwise: bb2]; ++ goto -> bb2; } bb1: { diff --git a/tests/mir-opt/set_no_discriminant.generic.JumpThreading.diff b/tests/mir-opt/set_no_discriminant.generic.JumpThreading.diff index c7af1638316..0600b751699 100644 --- a/tests/mir-opt/set_no_discriminant.generic.JumpThreading.diff +++ b/tests/mir-opt/set_no_discriminant.generic.JumpThreading.diff @@ -10,7 +10,8 @@ _2 = E::::A; discriminant(_2) = 1; _1 = discriminant(_2); - switchInt(copy _1) -> [0: bb1, otherwise: bb2]; +- switchInt(copy _1) -> [0: bb1, otherwise: bb2]; ++ goto -> bb2; } bb1: { diff --git a/tests/mir-opt/set_no_discriminant.rs b/tests/mir-opt/set_no_discriminant.rs index 586e28ae426..c44575a4d61 100644 --- a/tests/mir-opt/set_no_discriminant.rs +++ b/tests/mir-opt/set_no_discriminant.rs @@ -1,5 +1,6 @@ // `SetDiscriminant` does not actually write anything if the chosen variant is the untagged variant -// of a niche encoding. Verify that we do not thread over this case. +// of a niche encoding. However, it is UB to call `SetDiscriminant` with the untagged variant if the +// value currently encodes a different variant. Verify that we do correctly thread in this case. //@ test-mir-pass: JumpThreading #![feature(custom_mir)] @@ -16,20 +17,21 @@ enum E { #[custom_mir(dialect = "runtime")] pub fn f() -> usize { // CHECK-LABEL: fn f( - // CHECK-NOT: goto - // CHECK: switchInt( - // CHECK-NOT: goto + // CHECK-NOT: switchInt + // CHECK: goto + // CHECK-NOT: switchInt mir! { let a: isize; let e: E; { e = E::A; - SetDiscriminant(e, 1); + SetDiscriminant(e, 1); // UB! a = Discriminant(e); match a { 0 => bb0, _ => bb1, } + } bb0 = { RET = 0; @@ -46,15 +48,15 @@ pub fn f() -> usize { #[custom_mir(dialect = "runtime")] pub fn generic() -> usize { // CHECK-LABEL: fn generic( - // CHECK-NOT: goto - // CHECK: switchInt( - // CHECK-NOT: goto + // CHECK-NOT: switchInt + // CHECK: goto + // CHECK-NOT: switchInt mir! { let a: isize; let e: E; { e = E::A; - SetDiscriminant(e, 1); + SetDiscriminant(e, 1); // UB! a = Discriminant(e); match a { 0 => bb0, @@ -72,6 +74,7 @@ pub fn generic() -> usize { } } +// CHECK-LABEL: fn main( fn main() { assert_eq!(f(), 0); assert_eq!(generic::(), 0); diff --git a/tests/ui/abi/c-zst.aarch64-darwin.stderr b/tests/ui/abi/c-zst.aarch64-darwin.stderr index 7d384bc875f..aae92bd7dc9 100644 --- a/tests/ui/abi/c-zst.aarch64-darwin.stderr +++ b/tests/ui/abi/c-zst.aarch64-darwin.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -45,7 +47,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.powerpc-linux.stderr b/tests/ui/abi/c-zst.powerpc-linux.stderr index 7980710bab6..4ff4a8b90cf 100644 --- a/tests/ui/abi/c-zst.powerpc-linux.stderr +++ b/tests/ui/abi/c-zst.powerpc-linux.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -56,7 +58,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.s390x-linux.stderr b/tests/ui/abi/c-zst.s390x-linux.stderr index 7980710bab6..4ff4a8b90cf 100644 --- a/tests/ui/abi/c-zst.s390x-linux.stderr +++ b/tests/ui/abi/c-zst.s390x-linux.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -56,7 +58,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.sparc64-linux.stderr b/tests/ui/abi/c-zst.sparc64-linux.stderr index 7980710bab6..4ff4a8b90cf 100644 --- a/tests/ui/abi/c-zst.sparc64-linux.stderr +++ b/tests/ui/abi/c-zst.sparc64-linux.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -56,7 +58,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.x86_64-linux.stderr b/tests/ui/abi/c-zst.x86_64-linux.stderr index 7d384bc875f..aae92bd7dc9 100644 --- a/tests/ui/abi/c-zst.x86_64-linux.stderr +++ b/tests/ui/abi/c-zst.x86_64-linux.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -45,7 +47,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr b/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr index 7980710bab6..4ff4a8b90cf 100644 --- a/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr +++ b/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -56,7 +58,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/debug.stderr b/tests/ui/abi/debug.stderr index aa51c42c58d..0cbdf366616 100644 --- a/tests/ui/abi/debug.stderr +++ b/tests/ui/abi/debug.stderr @@ -21,7 +21,9 @@ error: fn_abi_of(test) = FnAbi { fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -67,7 +69,9 @@ error: fn_abi_of(test) = FnAbi { }, ), variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -124,7 +128,9 @@ error: fn_abi_of(TestFnPtr) = FnAbi { }, ), variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -161,7 +167,9 @@ error: fn_abi_of(TestFnPtr) = FnAbi { fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -210,7 +218,9 @@ error: fn_abi_of(test_generic) = FnAbi { fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -244,7 +254,9 @@ error: fn_abi_of(test_generic) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -292,7 +304,9 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -326,7 +340,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -362,7 +378,9 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -396,7 +414,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -435,7 +455,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -473,7 +495,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -506,7 +530,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -544,7 +570,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -585,7 +613,9 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -619,7 +649,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -655,7 +687,9 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -689,7 +723,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -731,7 +767,9 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -765,7 +803,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -801,7 +841,9 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -835,7 +877,9 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -902,7 +946,9 @@ error: fn_abi_of(assoc_test) = FnAbi { }, ), variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -938,7 +984,9 @@ error: fn_abi_of(assoc_test) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/sysv64-zst.stderr b/tests/ui/abi/sysv64-zst.stderr index 8e1791e27d2..920963c6987 100644 --- a/tests/ui/abi/sysv64-zst.stderr +++ b/tests/ui/abi/sysv64-zst.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -45,7 +47,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/win64-zst.x86_64-linux.stderr b/tests/ui/abi/win64-zst.x86_64-linux.stderr index 76d90670eb1..2752555b4f3 100644 --- a/tests/ui/abi/win64-zst.x86_64-linux.stderr +++ b/tests/ui/abi/win64-zst.x86_64-linux.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -45,7 +47,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr b/tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr index 7ee90e24744..19abb5930b1 100644 --- a/tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr +++ b/tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -56,7 +58,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr b/tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr index 76d90670eb1..2752555b4f3 100644 --- a/tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr +++ b/tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr @@ -18,7 +18,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -45,7 +47,9 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/layout/debug.stderr b/tests/ui/layout/debug.stderr index bd31665dac1..8ae2933c427 100644 --- a/tests/ui/layout/debug.stderr +++ b/tests/ui/layout/debug.stderr @@ -57,7 +57,9 @@ error: layout_of(E) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -83,7 +85,9 @@ error: layout_of(E) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -134,7 +138,9 @@ error: layout_of(S) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -158,7 +164,9 @@ error: layout_of(U) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -251,7 +259,9 @@ error: layout_of(Result) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -288,7 +298,9 @@ error: layout_of(Result) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -321,7 +333,9 @@ error: layout_of(i32) = Layout { fields: Primitive, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -345,7 +359,9 @@ error: layout_of(V) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -369,7 +385,9 @@ error: layout_of(W) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -393,7 +411,9 @@ error: layout_of(Y) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -417,7 +437,9 @@ error: layout_of(P1) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -441,7 +463,9 @@ error: layout_of(P2) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -465,7 +489,9 @@ error: layout_of(P3) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -489,7 +515,9 @@ error: layout_of(P4) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -518,7 +546,9 @@ error: layout_of(P5) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -547,7 +577,9 @@ error: layout_of(MaybeUninit) = Layout { ), largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), diff --git a/tests/ui/layout/hexagon-enum.stderr b/tests/ui/layout/hexagon-enum.stderr index 59fe667923f..a934f270911 100644 --- a/tests/ui/layout/hexagon-enum.stderr +++ b/tests/ui/layout/hexagon-enum.stderr @@ -57,7 +57,9 @@ error: layout_of(A) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -131,7 +133,9 @@ error: layout_of(B) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -205,7 +209,9 @@ error: layout_of(C) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -279,7 +285,9 @@ error: layout_of(P) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -353,7 +361,9 @@ error: layout_of(T) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), diff --git a/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr b/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr index ca041fb539b..8b4e46de845 100644 --- a/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr +++ b/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr @@ -79,7 +79,9 @@ error: layout_of(MissingPayloadField) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -99,7 +101,9 @@ error: layout_of(MissingPayloadField) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -197,7 +201,9 @@ error: layout_of(CommonPayloadField) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -234,7 +240,9 @@ error: layout_of(CommonPayloadField) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -330,7 +338,9 @@ error: layout_of(CommonPayloadFieldIsMaybeUninit) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -366,7 +376,9 @@ error: layout_of(CommonPayloadFieldIsMaybeUninit) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -478,7 +490,9 @@ error: layout_of(NicheFirst) = Layout { }, ), variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -498,7 +512,9 @@ error: layout_of(NicheFirst) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -518,7 +534,9 @@ error: layout_of(NicheFirst) = Layout { }, largest_niche: None, variants: Single { - index: 2, + index: Some( + 2, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -630,7 +648,9 @@ error: layout_of(NicheSecond) = Layout { }, ), variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -650,7 +670,9 @@ error: layout_of(NicheSecond) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -670,7 +692,9 @@ error: layout_of(NicheSecond) = Layout { }, largest_niche: None, variants: Single { - index: 2, + index: Some( + 2, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), diff --git a/tests/ui/layout/issue-96185-overaligned-enum.stderr b/tests/ui/layout/issue-96185-overaligned-enum.stderr index bc40a2aa482..92643445595 100644 --- a/tests/ui/layout/issue-96185-overaligned-enum.stderr +++ b/tests/ui/layout/issue-96185-overaligned-enum.stderr @@ -51,7 +51,9 @@ error: layout_of(Aligned1) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: Some( Align(8 bytes), @@ -73,7 +75,9 @@ error: layout_of(Aligned1) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: Some( Align(8 bytes), @@ -151,7 +155,9 @@ error: layout_of(Aligned2) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: Some( Align(1 bytes), @@ -173,7 +179,9 @@ error: layout_of(Aligned2) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: Some( Align(1 bytes), diff --git a/tests/ui/layout/thumb-enum.stderr b/tests/ui/layout/thumb-enum.stderr index bf043af586b..f35cf0dab3d 100644 --- a/tests/ui/layout/thumb-enum.stderr +++ b/tests/ui/layout/thumb-enum.stderr @@ -57,7 +57,9 @@ error: layout_of(A) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -131,7 +133,9 @@ error: layout_of(B) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -205,7 +209,9 @@ error: layout_of(C) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -279,7 +285,9 @@ error: layout_of(P) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -353,7 +361,9 @@ error: layout_of(T) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), diff --git a/tests/ui/layout/zero-sized-array-enum-niche.stderr b/tests/ui/layout/zero-sized-array-enum-niche.stderr index d61408098df..4c6f636b267 100644 --- a/tests/ui/layout/zero-sized-array-enum-niche.stderr +++ b/tests/ui/layout/zero-sized-array-enum-niche.stderr @@ -55,7 +55,9 @@ error: layout_of(Result<[u32; 0], bool>) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -88,7 +90,9 @@ error: layout_of(Result<[u32; 0], bool>) = Layout { }, ), variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -160,7 +164,9 @@ error: layout_of(MultipleAlignments) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -184,7 +190,9 @@ error: layout_of(MultipleAlignments) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -217,7 +225,9 @@ error: layout_of(MultipleAlignments) = Layout { }, ), variants: Single { - index: 2, + index: Some( + 2, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -289,7 +299,9 @@ error: layout_of(Result<[u32; 0], Packed>>) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -322,7 +334,9 @@ error: layout_of(Result<[u32; 0], Packed>>) = Layout { }, ), variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -398,7 +412,9 @@ error: layout_of(Result<[u32; 0], Packed>) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -431,7 +447,9 @@ error: layout_of(Result<[u32; 0], Packed>) = Layout { }, ), variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), diff --git a/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr b/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr index 64a0cb7f31a..08fd4237eeb 100644 --- a/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr +++ b/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr @@ -51,7 +51,9 @@ error: layout_of(Univariant) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -133,7 +135,9 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -169,7 +173,9 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -241,7 +247,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: Some( Align(8 bytes), @@ -267,7 +275,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr b/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr index 5c4daa6d519..473268cac1a 100644 --- a/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr +++ b/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr @@ -51,7 +51,9 @@ error: layout_of(Univariant) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -133,7 +135,9 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -169,7 +173,9 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -241,7 +247,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: Some( Align(8 bytes), @@ -267,7 +275,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr b/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr index 64a0cb7f31a..08fd4237eeb 100644 --- a/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr +++ b/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr @@ -51,7 +51,9 @@ error: layout_of(Univariant) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -133,7 +135,9 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -169,7 +173,9 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -241,7 +247,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: Some( Align(8 bytes), @@ -267,7 +275,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr b/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr index 64a0cb7f31a..08fd4237eeb 100644 --- a/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr +++ b/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr @@ -51,7 +51,9 @@ error: layout_of(Univariant) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -133,7 +135,9 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -169,7 +173,9 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -241,7 +247,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: Some( Align(8 bytes), @@ -267,7 +275,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/repr/repr-c-int-dead-variants.stderr b/tests/ui/repr/repr-c-int-dead-variants.stderr index 75005a64523..1200f120d37 100644 --- a/tests/ui/repr/repr-c-int-dead-variants.stderr +++ b/tests/ui/repr/repr-c-int-dead-variants.stderr @@ -51,7 +51,9 @@ error: layout_of(UnivariantU8) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -133,7 +135,9 @@ error: layout_of(TwoVariantsU8) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -169,7 +173,9 @@ error: layout_of(TwoVariantsU8) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -241,7 +247,9 @@ error: layout_of(DeadBranchHasOtherFieldU8) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: Some( Align(8 bytes), @@ -267,7 +275,9 @@ error: layout_of(DeadBranchHasOtherFieldU8) = Layout { }, largest_niche: None, variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/type/pattern_types/range_patterns.stderr b/tests/ui/type/pattern_types/range_patterns.stderr index 0eed7c2ce1c..9954471968d 100644 --- a/tests/ui/type/pattern_types/range_patterns.stderr +++ b/tests/ui/type/pattern_types/range_patterns.stderr @@ -32,7 +32,9 @@ error: layout_of(NonZero) = Layout { }, ), variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -69,7 +71,9 @@ error: layout_of((u32) is 1..=) = Layout { }, ), variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -133,7 +137,9 @@ error: layout_of(Option<(u32) is 1..=>) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -172,7 +178,9 @@ error: layout_of(Option<(u32) is 1..=>) = Layout { }, ), variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -241,7 +249,9 @@ error: layout_of(Option>) = Layout { }, largest_niche: None, variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -280,7 +290,9 @@ error: layout_of(Option>) = Layout { }, ), variants: Single { - index: 1, + index: Some( + 1, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -329,7 +341,9 @@ error: layout_of(NonZeroU32New) = Layout { }, ), variants: Single { - index: 0, + index: Some( + 0, + ), }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), -- cgit 1.4.1-3-g733a5 From e023590de407f417e0f3da675a372eca7acf60c6 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sun, 1 Dec 2024 17:33:01 +0100 Subject: make no-variant types a dedicated Variants variant --- compiler/rustc_abi/src/callconv.rs | 2 +- compiler/rustc_abi/src/layout.rs | 19 +++-- compiler/rustc_abi/src/lib.rs | 10 ++- .../rustc_codegen_cranelift/src/discriminant.rs | 7 +- compiler/rustc_codegen_gcc/src/type_of.rs | 6 +- .../src/debuginfo/metadata/enums/cpp_like.rs | 26 +++--- .../src/debuginfo/metadata/enums/mod.rs | 2 +- .../src/debuginfo/metadata/enums/native.rs | 4 +- compiler/rustc_codegen_llvm/src/type_of.rs | 6 +- compiler/rustc_codegen_ssa/src/debuginfo/mod.rs | 4 +- compiler/rustc_codegen_ssa/src/mir/place.rs | 8 +- .../rustc_const_eval/src/interpret/discriminant.rs | 8 +- .../rustc_const_eval/src/interpret/validity.rs | 9 +- compiler/rustc_const_eval/src/interpret/visitor.rs | 4 +- .../src/util/check_validity_requirement.rs | 1 + compiler/rustc_middle/src/ty/layout.rs | 24 +++--- compiler/rustc_mir_transform/src/large_enums.rs | 2 +- .../src/unreachable_enum_branching.rs | 4 +- compiler/rustc_smir/src/rustc_smir/convert/abi.rs | 7 +- compiler/rustc_target/src/callconv/loongarch.rs | 2 +- compiler/rustc_target/src/callconv/riscv.rs | 2 +- compiler/rustc_target/src/callconv/x86_64.rs | 2 +- compiler/rustc_transmute/src/layout/tree.rs | 15 ++-- compiler/rustc_ty_utils/src/layout.rs | 26 +++--- compiler/rustc_ty_utils/src/layout/invariant.rs | 8 +- compiler/stable_mir/src/abi.rs | 4 +- src/tools/miri/src/helpers.rs | 2 +- .../rust-analyzer/crates/hir-ty/src/layout.rs | 8 +- .../rust-analyzer/crates/hir-ty/src/mir/eval.rs | 8 +- src/tools/rust-analyzer/crates/hir-ty/src/utils.rs | 3 +- tests/ui/abi/c-zst.aarch64-darwin.stderr | 8 +- tests/ui/abi/c-zst.powerpc-linux.stderr | 8 +- tests/ui/abi/c-zst.s390x-linux.stderr | 8 +- tests/ui/abi/c-zst.sparc64-linux.stderr | 8 +- tests/ui/abi/c-zst.x86_64-linux.stderr | 8 +- tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr | 8 +- tests/ui/abi/debug.stderr | 96 ++++++---------------- tests/ui/abi/sysv64-zst.stderr | 8 +- tests/ui/abi/win64-zst.x86_64-linux.stderr | 8 +- tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr | 8 +- tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr | 8 +- tests/ui/layout/debug.stderr | 64 ++++----------- tests/ui/layout/hexagon-enum.stderr | 20 ++--- ...96158-scalarpair-payload-might-be-uninit.stderr | 48 +++-------- .../ui/layout/issue-96185-overaligned-enum.stderr | 16 +--- tests/ui/layout/thumb-enum.stderr | 20 ++--- tests/ui/layout/zero-sized-array-enum-niche.stderr | 36 ++------ ...-dead-variants.aarch64-unknown-linux-gnu.stderr | 20 ++--- .../repr-c-dead-variants.armebv7r-none-eabi.stderr | 20 ++--- ...epr-c-dead-variants.i686-pc-windows-msvc.stderr | 20 ++--- ...c-dead-variants.x86_64-unknown-linux-gnu.stderr | 20 ++--- tests/ui/repr/repr-c-int-dead-variants.stderr | 20 ++--- tests/ui/type/pattern_types/range_patterns.stderr | 28 ++----- 53 files changed, 246 insertions(+), 495 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_abi/src/callconv.rs b/compiler/rustc_abi/src/callconv.rs index ee63e46e88c..400395f99ff 100644 --- a/compiler/rustc_abi/src/callconv.rs +++ b/compiler/rustc_abi/src/callconv.rs @@ -206,7 +206,7 @@ impl<'a, Ty> TyAndLayout<'a, Ty> { let (mut result, mut total) = from_fields_at(*self, Size::ZERO)?; match &self.variants { - abi::Variants::Single { .. } => {} + abi::Variants::Single { .. } | abi::Variants::Empty => {} abi::Variants::Multiple { variants, .. } => { // Treat enum variants like union members. // HACK(eddyb) pretend the `enum` field (discriminant) diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs index f2b50ae408e..226a46f605c 100644 --- a/compiler/rustc_abi/src/layout.rs +++ b/compiler/rustc_abi/src/layout.rs @@ -120,7 +120,7 @@ impl LayoutCalculator { .max_by_key(|niche| niche.available(dl)); LayoutData { - variants: Variants::Single { index: Some(VariantIdx::new(0)) }, + variants: Variants::Single { index: VariantIdx::new(0) }, fields: FieldsShape::Arbitrary { offsets: [Size::ZERO, b_offset].into(), memory_index: [0, 1].into(), @@ -213,8 +213,9 @@ impl LayoutCalculator { &self, ) -> LayoutData { let dl = self.cx.data_layout(); + // This is also used for uninhabited enums, so we use `Variants::Empty`. LayoutData { - variants: Variants::Single { index: None }, + variants: Variants::Empty, fields: FieldsShape::Primitive, backend_repr: BackendRepr::Uninhabited, largest_niche: None, @@ -385,7 +386,7 @@ impl LayoutCalculator { }; Ok(LayoutData { - variants: Variants::Single { index: Some(only_variant_idx) }, + variants: Variants::Single { index: only_variant_idx }, fields: FieldsShape::Union(union_field_count), backend_repr: abi, largest_niche: None, @@ -424,7 +425,7 @@ impl LayoutCalculator { }; let mut st = self.univariant(&variants[v], repr, kind)?; - st.variants = Variants::Single { index: Some(v) }; + st.variants = Variants::Single { index: v }; if is_unsafe_cell { let hide_niches = |scalar: &mut _| match scalar { @@ -543,7 +544,7 @@ impl LayoutCalculator { .iter_enumerated() .map(|(j, v)| { let mut st = self.univariant(v, repr, StructKind::AlwaysSized).ok()?; - st.variants = Variants::Single { index: Some(j) }; + st.variants = Variants::Single { index: j }; align = align.max(st.align); max_repr_align = max_repr_align.max(st.max_repr_align); @@ -736,7 +737,7 @@ impl LayoutCalculator { repr, StructKind::Prefixed(min_ity.size(), prefix_align), )?; - st.variants = Variants::Single { index: Some(i) }; + st.variants = Variants::Single { index: i }; // Find the first field we can't move later // to make room for a larger discriminant. for field_idx in st.fields.index_by_increasing_offset() { @@ -1004,8 +1005,8 @@ impl LayoutCalculator { Variants::Multiple { tag, tag_encoding, tag_field, .. } => { Variants::Multiple { tag, tag_encoding, tag_field, variants: best_layout.variants } } - Variants::Single { .. } => { - panic!("encountered a single-variant enum during multi-variant layout") + Variants::Single { .. } | Variants::Empty => { + panic!("encountered a single-variant or empty enum during multi-variant layout") } }; Ok(best_layout.layout) @@ -1344,7 +1345,7 @@ impl LayoutCalculator { }; Ok(LayoutData { - variants: Variants::Single { index: Some(VariantIdx::new(0)) }, + variants: Variants::Single { index: VariantIdx::new(0) }, fields: FieldsShape::Arbitrary { offsets, memory_index }, backend_repr: abi, largest_niche, diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 242e2cadd18..ca15f7d9920 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -1504,11 +1504,13 @@ impl BackendRepr { #[derive(PartialEq, Eq, Hash, Clone, Debug)] #[cfg_attr(feature = "nightly", derive(HashStable_Generic))] pub enum Variants { + /// A type with no valid variants. Must be uninhabited. + Empty, + /// Single enum variants, structs/tuples, unions, and all non-ADTs. Single { - /// Always `Some(0)` for types without variants (i.e., everything except for `!`, enums, and - /// generators). `None` indicates an uninhabited type; this is used for zero-variant enums. - index: Option, + /// Always `0` for types that cannot have multiple variants. + index: VariantIdx, }, /// Enum-likes with more than one variant: each variant comes with @@ -1706,7 +1708,7 @@ impl LayoutData { let size = scalar.size(cx); let align = scalar.align(cx); LayoutData { - variants: Variants::Single { index: Some(VariantIdx::new(0)) }, + variants: Variants::Single { index: VariantIdx::new(0) }, fields: FieldsShape::Primitive, backend_repr: BackendRepr::Scalar(scalar), largest_niche, diff --git a/compiler/rustc_codegen_cranelift/src/discriminant.rs b/compiler/rustc_codegen_cranelift/src/discriminant.rs index 055063c876f..4d0d5dc60eb 100644 --- a/compiler/rustc_codegen_cranelift/src/discriminant.rs +++ b/compiler/rustc_codegen_cranelift/src/discriminant.rs @@ -18,8 +18,9 @@ pub(crate) fn codegen_set_discriminant<'tcx>( return; } match layout.variants { + Variants::Empty => unreachable!("we already handled uninhabited types"), Variants::Single { index } => { - assert_eq!(index.unwrap(), variant_index); + assert_eq!(index, variant_index); } Variants::Multiple { tag: _, @@ -85,11 +86,11 @@ pub(crate) fn codegen_get_discriminant<'tcx>( } let (tag_scalar, tag_field, tag_encoding) = match &layout.variants { + Variants::Empty => unreachable!("we already handled uninhabited types"), Variants::Single { index } => { - let index = index.unwrap(); let discr_val = layout .ty - .discriminant_for_variant(fx.tcx, index) + .discriminant_for_variant(fx.tcx, *index) .map_or(u128::from(index.as_u32()), |discr| discr.val); let val = match dest_layout.ty.kind() { diff --git a/compiler/rustc_codegen_gcc/src/type_of.rs b/compiler/rustc_codegen_gcc/src/type_of.rs index 426d28f4ed7..0efdf36da48 100644 --- a/compiler/rustc_codegen_gcc/src/type_of.rs +++ b/compiler/rustc_codegen_gcc/src/type_of.rs @@ -99,14 +99,14 @@ fn uncached_gcc_type<'gcc, 'tcx>( if !cx.sess().fewer_names() => { let mut name = with_no_trimmed_paths!(layout.ty.to_string()); - if let (&ty::Adt(def, _), &Variants::Single { index: Some(index) }) = + if let (&ty::Adt(def, _), &Variants::Single { index }) = (layout.ty.kind(), &layout.variants) { if def.is_enum() && !def.variants().is_empty() { write!(&mut name, "::{}", def.variant(index).name).unwrap(); } } - if let (&ty::Coroutine(_, _), &Variants::Single { index: Some(index) }) = + if let (&ty::Coroutine(_, _), &Variants::Single { index }) = (layout.ty.kind(), &layout.variants) { write!(&mut name, "::{}", ty::CoroutineArgs::variant_name(index)).unwrap(); @@ -230,7 +230,7 @@ impl<'tcx> LayoutGccExt<'tcx> for TyAndLayout<'tcx> { // Check the cache. let variant_index = match self.variants { - Variants::Single { index } => index, + Variants::Single { index } => Some(index), _ => None, }; let cached_type = cx.types.borrow().get(&(self.ty, variant_index)).cloned(); diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs index 8ec83fa7c92..12a46184d10 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs @@ -212,21 +212,18 @@ pub(super) fn build_enum_type_di_node<'ll, 'tcx>( ), |cx, enum_type_di_node| { match enum_type_and_layout.variants { - Variants::Single { index: variant_index } => { - let Some(variant_index) = variant_index else { - // Uninhabited enums have Variants::Single. We don't generate - // any members for them. - return smallvec![]; - }; - - build_single_variant_union_fields( - cx, - enum_adt_def, - enum_type_and_layout, - enum_type_di_node, - variant_index, - ) + Variants::Empty => { + // Uninhabited enums have Variants::Single. We don't generate + // any members for them. + return smallvec![]; } + Variants::Single { index: variant_index } => build_single_variant_union_fields( + cx, + enum_adt_def, + enum_type_and_layout, + enum_type_di_node, + variant_index, + ), Variants::Multiple { tag_encoding: TagEncoding::Direct, ref variants, @@ -303,6 +300,7 @@ pub(super) fn build_coroutine_di_node<'ll, 'tcx>( ) } Variants::Single { .. } + | Variants::Empty | Variants::Multiple { tag_encoding: TagEncoding::Niche { .. }, .. } => { bug!( "Encountered coroutine with non-direct-tag layout: {:?}", diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs index 65ab22ad89e..9f6a5cc89e0 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs @@ -392,7 +392,7 @@ fn compute_discriminant_value<'ll, 'tcx>( variant_index: VariantIdx, ) -> DiscrResult { match enum_type_and_layout.layout.variants() { - &Variants::Single { .. } => DiscrResult::NoDiscriminant, + &Variants::Single { .. } | &Variants::Empty => DiscrResult::NoDiscriminant, &Variants::Multiple { tag_encoding: TagEncoding::Direct, .. } => DiscrResult::Value( enum_type_and_layout.ty.discriminant_for_variant(cx.tcx, variant_index).unwrap().val, ), diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs index 241bf167a81..11824398f24 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs @@ -358,8 +358,8 @@ fn build_discr_member_di_node<'ll, 'tcx>( let containing_scope = enum_or_coroutine_type_di_node; match enum_or_coroutine_type_and_layout.layout.variants() { - // A single-variant enum has no discriminant. - &Variants::Single { .. } => None, + // A single-variant or no-variant enum has no discriminant. + &Variants::Single { .. } | &Variants::Empty => None, &Variants::Multiple { tag_field, .. } => { let tag_base_type = tag_base_type(cx.tcx, enum_or_coroutine_type_and_layout); diff --git a/compiler/rustc_codegen_llvm/src/type_of.rs b/compiler/rustc_codegen_llvm/src/type_of.rs index 833a687fe74..b0b6da869da 100644 --- a/compiler/rustc_codegen_llvm/src/type_of.rs +++ b/compiler/rustc_codegen_llvm/src/type_of.rs @@ -35,14 +35,14 @@ fn uncached_llvm_type<'a, 'tcx>( if !cx.sess().fewer_names() => { let mut name = with_no_visible_paths!(with_no_trimmed_paths!(layout.ty.to_string())); - if let (&ty::Adt(def, _), &Variants::Single { index: Some(index) }) = + if let (&ty::Adt(def, _), &Variants::Single { index }) = (layout.ty.kind(), &layout.variants) { if def.is_enum() { write!(&mut name, "::{}", def.variant(index).name).unwrap(); } } - if let (&ty::Coroutine(_, _), &Variants::Single { index: Some(index) }) = + if let (&ty::Coroutine(_, _), &Variants::Single { index }) = (layout.ty.kind(), &layout.variants) { write!(&mut name, "::{}", ty::CoroutineArgs::variant_name(index)).unwrap(); @@ -216,7 +216,7 @@ impl<'tcx> LayoutLlvmExt<'tcx> for TyAndLayout<'tcx> { // Check the cache. let variant_index = match self.variants { - Variants::Single { index } => index, + Variants::Single { index } => Some(index), _ => None, }; if let Some(llty) = cx.type_lowering.borrow().get(&(self.ty, variant_index)) { diff --git a/compiler/rustc_codegen_ssa/src/debuginfo/mod.rs b/compiler/rustc_codegen_ssa/src/debuginfo/mod.rs index 88d36b19da4..7c62c03d574 100644 --- a/compiler/rustc_codegen_ssa/src/debuginfo/mod.rs +++ b/compiler/rustc_codegen_ssa/src/debuginfo/mod.rs @@ -65,8 +65,8 @@ fn tag_base_type_opt<'tcx>( }); match enum_type_and_layout.layout.variants() { - // A single-variant enum has no discriminant. - Variants::Single { .. } => None, + // A single-variant or no-variant enum has no discriminant. + Variants::Single { .. } | Variants::Empty => None, Variants::Multiple { tag_encoding: TagEncoding::Niche { .. }, tag, .. } => { // Niche tags are always normalized to unsized integers of the correct size. diff --git a/compiler/rustc_codegen_ssa/src/mir/place.rs b/compiler/rustc_codegen_ssa/src/mir/place.rs index cef3d8255a0..c634f864ffb 100644 --- a/compiler/rustc_codegen_ssa/src/mir/place.rs +++ b/compiler/rustc_codegen_ssa/src/mir/place.rs @@ -243,8 +243,8 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { return bx.cx().const_poison(cast_to); } let (tag_scalar, tag_encoding, tag_field) = match self.layout.variants { + Variants::Empty => unreachable!("we already handled uninhabited types"), Variants::Single { index } => { - let index = index.unwrap(); // we already checked `is_uninhabited` let discr_val = self .layout .ty @@ -366,9 +366,9 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { return; } match self.layout.variants { - Variants::Single { index } => { - assert_eq!(index.unwrap(), variant_index); - } + Variants::Empty => unreachable!("we already handled uninhabited types"), + Variants::Single { index } => assert_eq!(index, variant_index), + Variants::Multiple { tag_encoding: TagEncoding::Direct, tag_field, .. } => { let ptr = self.project_field(bx, tag_field); let to = diff --git a/compiler/rustc_const_eval/src/interpret/discriminant.rs b/compiler/rustc_const_eval/src/interpret/discriminant.rs index 6cfd1613229..2f0b1cb6d1e 100644 --- a/compiler/rustc_const_eval/src/interpret/discriminant.rs +++ b/compiler/rustc_const_eval/src/interpret/discriminant.rs @@ -65,15 +65,18 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { // We use "tag" to refer to how the discriminant is encoded in memory, which can be either // straight-forward (`TagEncoding::Direct`) or with a niche (`TagEncoding::Niche`). let (tag_scalar_layout, tag_encoding, tag_field) = match op.layout().variants { + Variants::Empty => { + throw_ub!(UninhabitedEnumVariantRead(None)); + } Variants::Single { index } => { if op.layout().is_uninhabited() { // For consistency with `write_discriminant`, and to make sure that // `project_downcast` cannot fail due to strange layouts, we declare immediate UB // for uninhabited enums. - throw_ub!(UninhabitedEnumVariantRead(None)); + throw_ub!(UninhabitedEnumVariantRead(Some(index))); } // Since the type is inhabited, there must be an index. - return interp_ok(index.unwrap()); + return interp_ok(index); } Variants::Multiple { tag, ref tag_encoding, tag_field, .. } => { (tag, tag_encoding, tag_field) @@ -238,6 +241,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { } match layout.variants { + abi::Variants::Empty => unreachable!("we already handled uninhabited types"), abi::Variants::Single { .. } => { // The tag of a `Single` enum is like the tag of the niched // variant: there's no tag as the discriminant is encoded diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 832183b42dc..6f101395ccf 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -302,7 +302,7 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValidityVisitor<'rt, 'tcx, M> { }; } } - Variants::Single { .. } => {} + Variants::Single { .. } | Variants::Empty => {} } // Now we know we are projecting to a field, so figure out which one. @@ -342,10 +342,9 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValidityVisitor<'rt, 'tcx, M> { match layout.variants { Variants::Single { index } => { // Inside a variant - PathElem::Field( - def.variant(index.unwrap()).fields[FieldIdx::from_usize(field)].name, - ) + PathElem::Field(def.variant(index).fields[FieldIdx::from_usize(field)].name) } + Variants::Empty => panic!("there is no field in Variants::Empty types"), Variants::Multiple { .. } => bug!("we handled variants above"), } } @@ -1012,7 +1011,7 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValidityVisitor<'rt, 'tcx, M> { } // Don't forget potential other variants. match &layout.variants { - Variants::Single { .. } => { + Variants::Single { .. } | Variants::Empty => { // Fully handled above. } Variants::Multiple { variants, .. } => { diff --git a/compiler/rustc_const_eval/src/interpret/visitor.rs b/compiler/rustc_const_eval/src/interpret/visitor.rs index 76ab0bb544f..3647c109a6e 100644 --- a/compiler/rustc_const_eval/src/interpret/visitor.rs +++ b/compiler/rustc_const_eval/src/interpret/visitor.rs @@ -218,8 +218,8 @@ pub trait ValueVisitor<'tcx, M: Machine<'tcx>>: Sized { // recurse with the inner type self.visit_variant(v, idx, &inner)?; } - // For single-variant layouts, we already did anything there is to do. - Variants::Single { .. } => {} + // For single-variant layouts, we already did everything there is to do. + Variants::Single { .. } | Variants::Empty => {} } interp_ok(()) diff --git a/compiler/rustc_const_eval/src/util/check_validity_requirement.rs b/compiler/rustc_const_eval/src/util/check_validity_requirement.rs index 651a797e97c..a729d9325c8 100644 --- a/compiler/rustc_const_eval/src/util/check_validity_requirement.rs +++ b/compiler/rustc_const_eval/src/util/check_validity_requirement.rs @@ -155,6 +155,7 @@ fn check_validity_requirement_lax<'tcx>( } match &this.variants { + Variants::Empty => return Ok(false), Variants::Single { .. } => { // All fields of this single variant have already been checked above, there is nothing // else to do. diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index 5f7b30b5d04..367b0c07f9b 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -734,23 +734,22 @@ where let layout = match this.variants { Variants::Single { index } // If all variants but one are uninhabited, the variant layout is the enum layout. - if index == Some(variant_index) && - // Don't confuse variants of uninhabited enums with the enum itself. - // For more details see https://github.com/rust-lang/rust/issues/69763. - this.fields != FieldsShape::Primitive => + if index == variant_index => { this.layout } - Variants::Single { index } => { - // `Single` variant enums *can* have other variants, but those are uninhabited. + Variants::Single { .. } | Variants::Empty => { + // Single-variant and no-variant enums *can* have other variants, but those are + // uninhabited. Produce a layout that has the right fields for that variant, so that + // the rest of the compiler can project fields etc as usual. let tcx = cx.tcx(); let typing_env = cx.typing_env(); // Deny calling for_variant more than once for non-Single enums. if let Ok(original_layout) = tcx.layout_of(typing_env.as_query_input(this.ty)) { - assert_eq!(original_layout.variants, Variants::Single { index }); + assert_eq!(original_layout.variants, this.variants); } let fields = match this.ty.kind() { @@ -760,7 +759,7 @@ where _ => bug!("`ty_and_layout_for_variant` on unexpected type {}", this.ty), }; tcx.mk_layout(LayoutData { - variants: Variants::Single { index: Some(variant_index) }, + variants: Variants::Single { index: variant_index }, fields: match NonZero::new(fields) { Some(fields) => FieldsShape::Union(fields), None => FieldsShape::Arbitrary { offsets: IndexVec::new(), memory_index: IndexVec::new() }, @@ -777,7 +776,7 @@ where Variants::Multiple { ref variants, .. } => cx.tcx().mk_layout(variants[variant_index].clone()), }; - assert_eq!(*layout.variants(), Variants::Single { index: Some(variant_index) }); + assert_eq!(*layout.variants(), Variants::Single { index: variant_index }); TyAndLayout { ty: this.ty, layout } } @@ -904,10 +903,11 @@ where ), ty::Coroutine(def_id, args) => match this.variants { + Variants::Empty => unreachable!(), Variants::Single { index } => TyMaybeWithLayout::Ty( args.as_coroutine() .state_tys(def_id, tcx) - .nth(index.unwrap().as_usize()) + .nth(index.as_usize()) .unwrap() .nth(i) .unwrap(), @@ -926,10 +926,10 @@ where ty::Adt(def, args) => { match this.variants { Variants::Single { index } => { - let field = - &def.variant(index.unwrap()).fields[FieldIdx::from_usize(i)]; + let field = &def.variant(index).fields[FieldIdx::from_usize(i)]; TyMaybeWithLayout::Ty(field.ty(tcx, args)) } + Variants::Empty => panic!("there is no field in Variants::Empty types"), // Discriminant field for enums (where applicable). Variants::Multiple { tag, .. } => { diff --git a/compiler/rustc_mir_transform/src/large_enums.rs b/compiler/rustc_mir_transform/src/large_enums.rs index 8be5a63d008..490e7dd8f7e 100644 --- a/compiler/rustc_mir_transform/src/large_enums.rs +++ b/compiler/rustc_mir_transform/src/large_enums.rs @@ -216,7 +216,7 @@ impl EnumSizeOpt { }; let layout = tcx.layout_of(typing_env.as_query_input(ty)).ok()?; let variants = match &layout.variants { - Variants::Single { .. } => return None, + Variants::Single { .. } | Variants::Empty => return None, Variants::Multiple { tag_encoding: TagEncoding::Niche { .. }, .. } => return None, Variants::Multiple { variants, .. } if variants.len() <= 1 => return None, diff --git a/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs b/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs index 0ce3955163b..55dcad0680a 100644 --- a/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs +++ b/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs @@ -54,11 +54,11 @@ fn variant_discriminants<'tcx>( tcx: TyCtxt<'tcx>, ) -> FxHashSet { match &layout.variants { - Variants::Single { index: None } => { + Variants::Empty => { // Uninhabited, no valid discriminant. FxHashSet::default() } - Variants::Single { index: Some(index) } => { + Variants::Single { index } => { let mut res = FxHashSet::default(); res.insert( ty.discriminant_for_variant(tcx, *index) diff --git a/compiler/rustc_smir/src/rustc_smir/convert/abi.rs b/compiler/rustc_smir/src/rustc_smir/convert/abi.rs index 2717f4ab62f..b39a15a8633 100644 --- a/compiler/rustc_smir/src/rustc_smir/convert/abi.rs +++ b/compiler/rustc_smir/src/rustc_smir/convert/abi.rs @@ -164,9 +164,10 @@ impl<'tcx> Stable<'tcx> for rustc_abi::Variants) -> Self::T { match self { - rustc_abi::Variants::Single { index } => VariantsShape::Single { - index: index.unwrap_or(rustc_abi::VariantIdx::from_u32(0)).stable(tables), - }, + rustc_abi::Variants::Single { index } => { + VariantsShape::Single { index: index.stable(tables) } + } + rustc_abi::Variants::Empty => VariantsShape::Empty, rustc_abi::Variants::Multiple { tag, tag_encoding, tag_field, variants } => { VariantsShape::Multiple { tag: tag.stable(tables), diff --git a/compiler/rustc_target/src/callconv/loongarch.rs b/compiler/rustc_target/src/callconv/loongarch.rs index d1234c3cc91..8bf61cb1337 100644 --- a/compiler/rustc_target/src/callconv/loongarch.rs +++ b/compiler/rustc_target/src/callconv/loongarch.rs @@ -116,7 +116,7 @@ where FieldsShape::Arbitrary { .. } => { match arg_layout.variants { abi::Variants::Multiple { .. } => return Err(CannotUseFpConv), - abi::Variants::Single { .. } => (), + abi::Variants::Single { .. } | abi::Variants::Empty => (), } for i in arg_layout.fields.index_by_increasing_offset() { let field = arg_layout.field(cx, i); diff --git a/compiler/rustc_target/src/callconv/riscv.rs b/compiler/rustc_target/src/callconv/riscv.rs index c0298edb5ab..4d858392c97 100644 --- a/compiler/rustc_target/src/callconv/riscv.rs +++ b/compiler/rustc_target/src/callconv/riscv.rs @@ -122,7 +122,7 @@ where FieldsShape::Arbitrary { .. } => { match arg_layout.variants { abi::Variants::Multiple { .. } => return Err(CannotUseFpConv), - abi::Variants::Single { .. } => (), + abi::Variants::Single { .. } | abi::Variants::Empty => (), } for i in arg_layout.fields.index_by_increasing_offset() { let field = arg_layout.field(cx, i); diff --git a/compiler/rustc_target/src/callconv/x86_64.rs b/compiler/rustc_target/src/callconv/x86_64.rs index bd101b23ea1..37aecf323a1 100644 --- a/compiler/rustc_target/src/callconv/x86_64.rs +++ b/compiler/rustc_target/src/callconv/x86_64.rs @@ -65,7 +65,7 @@ where } match &layout.variants { - abi::Variants::Single { .. } => {} + abi::Variants::Single { .. } | abi::Variants::Empty => {} abi::Variants::Multiple { variants, .. } => { // Treat enum variants like union members. for variant_idx in variants.indices() { diff --git a/compiler/rustc_transmute/src/layout/tree.rs b/compiler/rustc_transmute/src/layout/tree.rs index 049f4734e7b..4cc6292a3ee 100644 --- a/compiler/rustc_transmute/src/layout/tree.rs +++ b/compiler/rustc_transmute/src/layout/tree.rs @@ -338,14 +338,11 @@ pub(crate) mod rustc { }; match layout.variants() { + Variants::Empty => Ok(Self::uninhabited()), Variants::Single { index } => { - if let Some(index) = index { - // `Variants::Single` on enums with variants denotes that - // the enum delegates its layout to the variant at `index`. - layout_of_variant(*index, None) - } else { - Ok(Self::uninhabited()) - } + // `Variants::Single` on enums with variants denotes that + // the enum delegates its layout to the variant at `index`. + layout_of_variant(*index, None) } Variants::Multiple { tag, tag_encoding, tag_field, .. } => { // `Variants::Multiple` denotes an enum with multiple @@ -498,13 +495,15 @@ pub(crate) mod rustc { (ty, layout): (Ty<'tcx>, Layout<'tcx>), i: FieldIdx, ) -> Ty<'tcx> { + // FIXME: Why does this not just use `ty_and_layout_field`? match ty.kind() { ty::Adt(def, args) => { match layout.variants { Variants::Single { index } => { - let field = &def.variant(index.unwrap()).fields[i]; + let field = &def.variant(index).fields[i]; field.ty(cx.tcx(), args) } + Variants::Empty => panic!("there is no field in Variants::Empty types"), // Discriminant field for enums (where applicable). Variants::Multiple { tag, .. } => { assert_eq!(i.as_usize(), 0); diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index b393190a493..a3b2ed07d4b 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -339,7 +339,7 @@ fn layout_of_uncached<'tcx>( let largest_niche = if count != 0 { element.largest_niche } else { None }; tcx.mk_layout(LayoutData { - variants: Variants::Single { index: Some(FIRST_VARIANT) }, + variants: Variants::Single { index: FIRST_VARIANT }, fields: FieldsShape::Array { stride: element.size, count }, backend_repr: abi, largest_niche, @@ -352,7 +352,7 @@ fn layout_of_uncached<'tcx>( ty::Slice(element) => { let element = cx.layout_of(element)?; tcx.mk_layout(LayoutData { - variants: Variants::Single { index: Some(FIRST_VARIANT) }, + variants: Variants::Single { index: FIRST_VARIANT }, fields: FieldsShape::Array { stride: element.size, count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, @@ -363,7 +363,7 @@ fn layout_of_uncached<'tcx>( }) } ty::Str => tcx.mk_layout(LayoutData { - variants: Variants::Single { index: Some(FIRST_VARIANT) }, + variants: Variants::Single { index: FIRST_VARIANT }, fields: FieldsShape::Array { stride: Size::from_bytes(1), count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, @@ -534,7 +534,7 @@ fn layout_of_uncached<'tcx>( }; tcx.mk_layout(LayoutData { - variants: Variants::Single { index: Some(FIRST_VARIANT) }, + variants: Variants::Single { index: FIRST_VARIANT }, fields, backend_repr: abi, largest_niche: e_ly.largest_niche, @@ -926,7 +926,7 @@ fn coroutine_layout<'tcx>( &ReprOptions::default(), StructKind::Prefixed(prefix_size, prefix_align.abi), )?; - variant.variants = Variants::Single { index: Some(index) }; + variant.variants = Variants::Single { index }; let FieldsShape::Arbitrary { offsets, memory_index } = variant.fields else { bug!(); @@ -1104,17 +1104,13 @@ fn variant_info_for_adt<'tcx>( }; match layout.variants { + Variants::Empty => (vec![], None), + Variants::Single { index } => { - if let Some(index) = index - && layout.fields != FieldsShape::Primitive - { - debug!("print-type-size `{:#?}` variant {}", layout, adt_def.variant(index).name); - let variant_def = &adt_def.variant(index); - let fields: Vec<_> = variant_def.fields.iter().map(|f| f.name).collect(); - (vec![build_variant_info(Some(variant_def.name), &fields, layout)], None) - } else { - (vec![], None) - } + debug!("print-type-size `{:#?}` variant {}", layout, adt_def.variant(index).name); + let variant_def = &adt_def.variant(index); + let fields: Vec<_> = variant_def.fields.iter().map(|f| f.name).collect(); + (vec![build_variant_info(Some(variant_def.name), &fields, layout)], None) } Variants::Multiple { tag, ref tag_encoding, .. } => { diff --git a/compiler/rustc_ty_utils/src/layout/invariant.rs b/compiler/rustc_ty_utils/src/layout/invariant.rs index 7e2375154c0..8d5403ed324 100644 --- a/compiler/rustc_ty_utils/src/layout/invariant.rs +++ b/compiler/rustc_ty_utils/src/layout/invariant.rs @@ -242,15 +242,15 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou check_layout_abi(cx, layout); match &layout.variants { - Variants::Single { index: None } => { + Variants::Empty => { assert!(layout.is_uninhabited()); } - Variants::Single { index: Some(idx) } => { + Variants::Single { index } => { if let Some(variants) = layout.ty.variant_range(tcx) { - assert!(variants.contains(idx)); + assert!(variants.contains(index)); } else { // Types without variants use `0` as dummy variant index. - assert!(idx.as_u32() == 0); + assert!(index.as_u32() == 0); } } Variants::Multiple { variants, tag, tag_encoding, .. } => { diff --git a/compiler/stable_mir/src/abi.rs b/compiler/stable_mir/src/abi.rs index cf28a0c5885..17e6a852022 100644 --- a/compiler/stable_mir/src/abi.rs +++ b/compiler/stable_mir/src/abi.rs @@ -180,8 +180,10 @@ impl FieldsShape { #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize)] pub enum VariantsShape { + /// A type with no valid variants. Must be uninhabited. + Empty, + /// Single enum variants, structs/tuples, unions, and all non-ADTs. - // FIXME: needs to become `Option` like in the internal type. Single { index: VariantIdx }, /// Enum-likes with more than one inhabited variant: each variant comes with diff --git a/src/tools/miri/src/helpers.rs b/src/tools/miri/src/helpers.rs index 1f7c60ad1bd..ef4543dcee8 100644 --- a/src/tools/miri/src/helpers.rs +++ b/src/tools/miri/src/helpers.rs @@ -605,7 +605,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { // `UnsafeCell` action. (self.unsafe_cell_action)(v) } - Variants::Single { .. } => { + Variants::Single { .. } | Variants::Empty => { // Proceed further, try to find where exactly that `UnsafeCell` // is hiding. self.walk_value(v) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs index 08026f11c83..0c1f63880cd 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs @@ -189,7 +189,7 @@ fn layout_of_simd_ty( }; Ok(Arc::new(Layout { - variants: Variants::Single { index: Some(struct_variant_idx()) }, + variants: Variants::Single { index: struct_variant_idx() }, fields, backend_repr: BackendRepr::Vector { element: e_abi, count: e_len }, largest_niche: e_ly.largest_niche, @@ -305,7 +305,7 @@ pub fn layout_of_ty_query( let largest_niche = if count != 0 { element.largest_niche } else { None }; Layout { - variants: Variants::Single { index: Some(struct_variant_idx()) }, + variants: Variants::Single { index: struct_variant_idx() }, fields: FieldsShape::Array { stride: element.size, count }, backend_repr, largest_niche, @@ -318,7 +318,7 @@ pub fn layout_of_ty_query( TyKind::Slice(element) => { let element = db.layout_of_ty(element.clone(), trait_env)?; Layout { - variants: Variants::Single { index: Some(struct_variant_idx()) }, + variants: Variants::Single { index: struct_variant_idx() }, fields: FieldsShape::Array { stride: element.size, count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, @@ -329,7 +329,7 @@ pub fn layout_of_ty_query( } } TyKind::Str => Layout { - variants: Variants::Single { index: Some(struct_variant_idx()) }, + variants: Variants::Single { index: struct_variant_idx() }, fields: FieldsShape::Array { stride: Size::from_bytes(1), count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs index 9375853e915..e3072d6ee79 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs @@ -813,7 +813,7 @@ impl Evaluator<'_> { ProjectionElem::Field(Either::Left(f)) => { let layout = self.layout(&prev_ty)?; let variant_layout = match &layout.variants { - Variants::Single { .. } => &layout, + Variants::Single { .. } | Variants::Empty => &layout, Variants::Multiple { variants, .. } => { &variants[match f.parent { hir_def::VariantId::EnumVariantId(it) => { @@ -1638,9 +1638,9 @@ impl Evaluator<'_> { return Ok(0); }; match &layout.variants { + Variants::Empty => unreachable!(), Variants::Single { index } => { - let r = self - .const_eval_discriminant(self.db.enum_data(e).variants[index.unwrap().0].0)?; + let r = self.const_eval_discriminant(self.db.enum_data(e).variants[index.0].0)?; Ok(r) } Variants::Multiple { tag, tag_encoding, variants, .. } => { @@ -1801,7 +1801,7 @@ impl Evaluator<'_> { } let layout = self.layout_adt(adt, subst)?; Ok(match &layout.variants { - Variants::Single { .. } => (layout.size.bytes_usize(), layout, None), + Variants::Single { .. } | Variants::Empty => (layout.size.bytes_usize(), layout, None), Variants::Multiple { variants, tag, tag_encoding, .. } => { let enum_variant_id = match it { VariantId::EnumVariantId(it) => it, diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/utils.rs b/src/tools/rust-analyzer/crates/hir-ty/src/utils.rs index 43ed6a06f42..42e7edaf0f4 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/utils.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/utils.rs @@ -334,8 +334,9 @@ pub(crate) fn detect_variant_from_bytes<'a>( e: EnumId, ) -> Option<(EnumVariantId, &'a Layout)> { let (var_id, var_layout) = match &layout.variants { + hir_def::layout::Variants::Empty => unreachable!(), hir_def::layout::Variants::Single { index } => { - (db.enum_data(e).variants[index.unwrap().0].0, layout) + (db.enum_data(e).variants[index.0].0, layout) } hir_def::layout::Variants::Multiple { tag, tag_encoding, variants, .. } => { let size = tag.size(target_data_layout).bytes_usize(); diff --git a/tests/ui/abi/c-zst.aarch64-darwin.stderr b/tests/ui/abi/c-zst.aarch64-darwin.stderr index aae92bd7dc9..7d384bc875f 100644 --- a/tests/ui/abi/c-zst.aarch64-darwin.stderr +++ b/tests/ui/abi/c-zst.aarch64-darwin.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -47,9 +45,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.powerpc-linux.stderr b/tests/ui/abi/c-zst.powerpc-linux.stderr index 4ff4a8b90cf..7980710bab6 100644 --- a/tests/ui/abi/c-zst.powerpc-linux.stderr +++ b/tests/ui/abi/c-zst.powerpc-linux.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -58,9 +56,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.s390x-linux.stderr b/tests/ui/abi/c-zst.s390x-linux.stderr index 4ff4a8b90cf..7980710bab6 100644 --- a/tests/ui/abi/c-zst.s390x-linux.stderr +++ b/tests/ui/abi/c-zst.s390x-linux.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -58,9 +56,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.sparc64-linux.stderr b/tests/ui/abi/c-zst.sparc64-linux.stderr index 4ff4a8b90cf..7980710bab6 100644 --- a/tests/ui/abi/c-zst.sparc64-linux.stderr +++ b/tests/ui/abi/c-zst.sparc64-linux.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -58,9 +56,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.x86_64-linux.stderr b/tests/ui/abi/c-zst.x86_64-linux.stderr index aae92bd7dc9..7d384bc875f 100644 --- a/tests/ui/abi/c-zst.x86_64-linux.stderr +++ b/tests/ui/abi/c-zst.x86_64-linux.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -47,9 +45,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr b/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr index 4ff4a8b90cf..7980710bab6 100644 --- a/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr +++ b/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -58,9 +56,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/debug.stderr b/tests/ui/abi/debug.stderr index 0cbdf366616..aa51c42c58d 100644 --- a/tests/ui/abi/debug.stderr +++ b/tests/ui/abi/debug.stderr @@ -21,9 +21,7 @@ error: fn_abi_of(test) = FnAbi { fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -69,9 +67,7 @@ error: fn_abi_of(test) = FnAbi { }, ), variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -128,9 +124,7 @@ error: fn_abi_of(TestFnPtr) = FnAbi { }, ), variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -167,9 +161,7 @@ error: fn_abi_of(TestFnPtr) = FnAbi { fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -218,9 +210,7 @@ error: fn_abi_of(test_generic) = FnAbi { fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -254,9 +244,7 @@ error: fn_abi_of(test_generic) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -304,9 +292,7 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -340,9 +326,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -378,9 +362,7 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -414,9 +396,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -455,9 +435,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -495,9 +473,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -530,9 +506,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -570,9 +544,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -613,9 +585,7 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -649,9 +619,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -687,9 +655,7 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -723,9 +689,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -767,9 +731,7 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -803,9 +765,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -841,9 +801,7 @@ error: ABIs are not compatible fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -877,9 +835,7 @@ error: ABIs are not compatible }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -946,9 +902,7 @@ error: fn_abi_of(assoc_test) = FnAbi { }, ), variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -984,9 +938,7 @@ error: fn_abi_of(assoc_test) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/sysv64-zst.stderr b/tests/ui/abi/sysv64-zst.stderr index 920963c6987..8e1791e27d2 100644 --- a/tests/ui/abi/sysv64-zst.stderr +++ b/tests/ui/abi/sysv64-zst.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -47,9 +45,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/win64-zst.x86_64-linux.stderr b/tests/ui/abi/win64-zst.x86_64-linux.stderr index 2752555b4f3..76d90670eb1 100644 --- a/tests/ui/abi/win64-zst.x86_64-linux.stderr +++ b/tests/ui/abi/win64-zst.x86_64-linux.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -47,9 +45,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr b/tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr index 19abb5930b1..7ee90e24744 100644 --- a/tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr +++ b/tests/ui/abi/win64-zst.x86_64-windows-gnu.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -58,9 +56,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr b/tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr index 2752555b4f3..76d90670eb1 100644 --- a/tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr +++ b/tests/ui/abi/win64-zst.x86_64-windows-msvc.stderr @@ -18,9 +18,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, @@ -47,9 +45,7 @@ error: fn_abi_of(pass_zst) = FnAbi { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: $SOME_ALIGN, diff --git a/tests/ui/layout/debug.stderr b/tests/ui/layout/debug.stderr index 8ae2933c427..bd31665dac1 100644 --- a/tests/ui/layout/debug.stderr +++ b/tests/ui/layout/debug.stderr @@ -57,9 +57,7 @@ error: layout_of(E) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -85,9 +83,7 @@ error: layout_of(E) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -138,9 +134,7 @@ error: layout_of(S) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -164,9 +158,7 @@ error: layout_of(U) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -259,9 +251,7 @@ error: layout_of(Result) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -298,9 +288,7 @@ error: layout_of(Result) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -333,9 +321,7 @@ error: layout_of(i32) = Layout { fields: Primitive, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -359,9 +345,7 @@ error: layout_of(V) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -385,9 +369,7 @@ error: layout_of(W) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -411,9 +393,7 @@ error: layout_of(Y) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -437,9 +417,7 @@ error: layout_of(P1) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -463,9 +441,7 @@ error: layout_of(P2) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -489,9 +465,7 @@ error: layout_of(P3) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -515,9 +489,7 @@ error: layout_of(P4) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -546,9 +518,7 @@ error: layout_of(P5) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -577,9 +547,7 @@ error: layout_of(MaybeUninit) = Layout { ), largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), diff --git a/tests/ui/layout/hexagon-enum.stderr b/tests/ui/layout/hexagon-enum.stderr index a934f270911..59fe667923f 100644 --- a/tests/ui/layout/hexagon-enum.stderr +++ b/tests/ui/layout/hexagon-enum.stderr @@ -57,9 +57,7 @@ error: layout_of(A) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -133,9 +131,7 @@ error: layout_of(B) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -209,9 +205,7 @@ error: layout_of(C) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -285,9 +279,7 @@ error: layout_of(P) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -361,9 +353,7 @@ error: layout_of(T) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), diff --git a/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr b/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr index 8b4e46de845..ca041fb539b 100644 --- a/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr +++ b/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr @@ -79,9 +79,7 @@ error: layout_of(MissingPayloadField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -101,9 +99,7 @@ error: layout_of(MissingPayloadField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -201,9 +197,7 @@ error: layout_of(CommonPayloadField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -240,9 +234,7 @@ error: layout_of(CommonPayloadField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -338,9 +330,7 @@ error: layout_of(CommonPayloadFieldIsMaybeUninit) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -376,9 +366,7 @@ error: layout_of(CommonPayloadFieldIsMaybeUninit) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -490,9 +478,7 @@ error: layout_of(NicheFirst) = Layout { }, ), variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -512,9 +498,7 @@ error: layout_of(NicheFirst) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -534,9 +518,7 @@ error: layout_of(NicheFirst) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 2, - ), + index: 2, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -648,9 +630,7 @@ error: layout_of(NicheSecond) = Layout { }, ), variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -670,9 +650,7 @@ error: layout_of(NicheSecond) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -692,9 +670,7 @@ error: layout_of(NicheSecond) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 2, - ), + index: 2, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), diff --git a/tests/ui/layout/issue-96185-overaligned-enum.stderr b/tests/ui/layout/issue-96185-overaligned-enum.stderr index 92643445595..bc40a2aa482 100644 --- a/tests/ui/layout/issue-96185-overaligned-enum.stderr +++ b/tests/ui/layout/issue-96185-overaligned-enum.stderr @@ -51,9 +51,7 @@ error: layout_of(Aligned1) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: Some( Align(8 bytes), @@ -75,9 +73,7 @@ error: layout_of(Aligned1) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: Some( Align(8 bytes), @@ -155,9 +151,7 @@ error: layout_of(Aligned2) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: Some( Align(1 bytes), @@ -179,9 +173,7 @@ error: layout_of(Aligned2) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: Some( Align(1 bytes), diff --git a/tests/ui/layout/thumb-enum.stderr b/tests/ui/layout/thumb-enum.stderr index f35cf0dab3d..bf043af586b 100644 --- a/tests/ui/layout/thumb-enum.stderr +++ b/tests/ui/layout/thumb-enum.stderr @@ -57,9 +57,7 @@ error: layout_of(A) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -133,9 +131,7 @@ error: layout_of(B) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -209,9 +205,7 @@ error: layout_of(C) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -285,9 +279,7 @@ error: layout_of(P) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -361,9 +353,7 @@ error: layout_of(T) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), diff --git a/tests/ui/layout/zero-sized-array-enum-niche.stderr b/tests/ui/layout/zero-sized-array-enum-niche.stderr index 4c6f636b267..d61408098df 100644 --- a/tests/ui/layout/zero-sized-array-enum-niche.stderr +++ b/tests/ui/layout/zero-sized-array-enum-niche.stderr @@ -55,9 +55,7 @@ error: layout_of(Result<[u32; 0], bool>) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -90,9 +88,7 @@ error: layout_of(Result<[u32; 0], bool>) = Layout { }, ), variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -164,9 +160,7 @@ error: layout_of(MultipleAlignments) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(2 bytes), @@ -190,9 +184,7 @@ error: layout_of(MultipleAlignments) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -225,9 +217,7 @@ error: layout_of(MultipleAlignments) = Layout { }, ), variants: Single { - index: Some( - 2, - ), + index: 2, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -299,9 +289,7 @@ error: layout_of(Result<[u32; 0], Packed>>) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -334,9 +322,7 @@ error: layout_of(Result<[u32; 0], Packed>>) = Layout { }, ), variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -412,9 +398,7 @@ error: layout_of(Result<[u32; 0], Packed>) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -447,9 +431,7 @@ error: layout_of(Result<[u32; 0], Packed>) = Layout { }, ), variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), diff --git a/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr b/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr index 08fd4237eeb..64a0cb7f31a 100644 --- a/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr +++ b/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr @@ -51,9 +51,7 @@ error: layout_of(Univariant) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -135,9 +133,7 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -173,9 +169,7 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -247,9 +241,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: Some( Align(8 bytes), @@ -275,9 +267,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr b/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr index 473268cac1a..5c4daa6d519 100644 --- a/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr +++ b/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr @@ -51,9 +51,7 @@ error: layout_of(Univariant) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -135,9 +133,7 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -173,9 +169,7 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -247,9 +241,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: Some( Align(8 bytes), @@ -275,9 +267,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr b/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr index 08fd4237eeb..64a0cb7f31a 100644 --- a/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr +++ b/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr @@ -51,9 +51,7 @@ error: layout_of(Univariant) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -135,9 +133,7 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -173,9 +169,7 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -247,9 +241,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: Some( Align(8 bytes), @@ -275,9 +267,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr b/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr index 08fd4237eeb..64a0cb7f31a 100644 --- a/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr +++ b/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr @@ -51,9 +51,7 @@ error: layout_of(Univariant) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -135,9 +133,7 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -173,9 +169,7 @@ error: layout_of(TwoVariants) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -247,9 +241,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: Some( Align(8 bytes), @@ -275,9 +267,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/repr/repr-c-int-dead-variants.stderr b/tests/ui/repr/repr-c-int-dead-variants.stderr index 1200f120d37..75005a64523 100644 --- a/tests/ui/repr/repr-c-int-dead-variants.stderr +++ b/tests/ui/repr/repr-c-int-dead-variants.stderr @@ -51,9 +51,7 @@ error: layout_of(UnivariantU8) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -135,9 +133,7 @@ error: layout_of(TwoVariantsU8) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -173,9 +169,7 @@ error: layout_of(TwoVariantsU8) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -247,9 +241,7 @@ error: layout_of(DeadBranchHasOtherFieldU8) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: Some( Align(8 bytes), @@ -275,9 +267,7 @@ error: layout_of(DeadBranchHasOtherFieldU8) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(8 bytes), diff --git a/tests/ui/type/pattern_types/range_patterns.stderr b/tests/ui/type/pattern_types/range_patterns.stderr index 9954471968d..0eed7c2ce1c 100644 --- a/tests/ui/type/pattern_types/range_patterns.stderr +++ b/tests/ui/type/pattern_types/range_patterns.stderr @@ -32,9 +32,7 @@ error: layout_of(NonZero) = Layout { }, ), variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -71,9 +69,7 @@ error: layout_of((u32) is 1..=) = Layout { }, ), variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -137,9 +133,7 @@ error: layout_of(Option<(u32) is 1..=>) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -178,9 +172,7 @@ error: layout_of(Option<(u32) is 1..=>) = Layout { }, ), variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -249,9 +241,7 @@ error: layout_of(Option>) = Layout { }, largest_niche: None, variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(1 bytes), @@ -290,9 +280,7 @@ error: layout_of(Option>) = Layout { }, ), variants: Single { - index: Some( - 1, - ), + index: 1, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), @@ -341,9 +329,7 @@ error: layout_of(NonZeroU32New) = Layout { }, ), variants: Single { - index: Some( - 0, - ), + index: 0, }, max_repr_align: None, unadjusted_abi_align: Align(4 bytes), -- cgit 1.4.1-3-g733a5 From 397ae3cdf641b8d303ab9d004013f956c2991727 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sat, 7 Dec 2024 18:37:33 +0100 Subject: fix outdated comment Co-authored-by: Camille Gillot --- compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs index 12a46184d10..23e11748e52 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs @@ -213,8 +213,7 @@ pub(super) fn build_enum_type_di_node<'ll, 'tcx>( |cx, enum_type_di_node| { match enum_type_and_layout.variants { Variants::Empty => { - // Uninhabited enums have Variants::Single. We don't generate - // any members for them. + // We don't generate any members for uninhabited types. return smallvec![]; } Variants::Single { index: variant_index } => build_single_variant_union_fields( -- cgit 1.4.1-3-g733a5 From d416cead5a92d6a054d0e4d18a4b3a965f35334d Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 18 Dec 2024 18:59:27 +1100 Subject: coverage: Rename some FFI fields from `span` to `cov_span` This will avoid confusion with actual `Span` spans. --- compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs | 8 ++++---- compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs | 11 ++++++----- 2 files changed, 10 insertions(+), 9 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs index 1f133141c18..4cad09b3a2d 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs @@ -184,7 +184,7 @@ impl Regions { #[derive(Clone, Debug)] #[repr(C)] pub(crate) struct CodeRegion { - pub(crate) span: CoverageSpan, + pub(crate) cov_span: CoverageSpan, pub(crate) counter: Counter, } @@ -192,7 +192,7 @@ pub(crate) struct CodeRegion { #[derive(Clone, Debug)] #[repr(C)] pub(crate) struct BranchRegion { - pub(crate) span: CoverageSpan, + pub(crate) cov_span: CoverageSpan, pub(crate) true_counter: Counter, pub(crate) false_counter: Counter, } @@ -201,7 +201,7 @@ pub(crate) struct BranchRegion { #[derive(Clone, Debug)] #[repr(C)] pub(crate) struct MCDCBranchRegion { - pub(crate) span: CoverageSpan, + pub(crate) cov_span: CoverageSpan, pub(crate) true_counter: Counter, pub(crate) false_counter: Counter, pub(crate) mcdc_branch_params: mcdc::BranchParameters, @@ -211,6 +211,6 @@ pub(crate) struct MCDCBranchRegion { #[derive(Clone, Debug)] #[repr(C)] pub(crate) struct MCDCDecisionRegion { - pub(crate) span: CoverageSpan, + pub(crate) cov_span: CoverageSpan, pub(crate) mcdc_decision_params: mcdc::DecisionParameters, } diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index 8e853f057be..f9e9555e8bd 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -141,21 +141,22 @@ fn fill_region_tables<'tcx>( // MIR opts, replace those occurrences with zero. let kind = kind.map_terms(|term| if is_zero_term(term) { CovTerm::Zero } else { term }); - let span = ffi::CoverageSpan::from_source_region(local_file_id, source_region); + let cov_span = ffi::CoverageSpan::from_source_region(local_file_id, source_region); match kind { MappingKind::Code(term) => { - code_regions.push(ffi::CodeRegion { span, counter: ffi::Counter::from_term(term) }); + code_regions + .push(ffi::CodeRegion { cov_span, counter: ffi::Counter::from_term(term) }); } MappingKind::Branch { true_term, false_term } => { branch_regions.push(ffi::BranchRegion { - span, + cov_span, true_counter: ffi::Counter::from_term(true_term), false_counter: ffi::Counter::from_term(false_term), }); } MappingKind::MCDCBranch { true_term, false_term, mcdc_params } => { mcdc_branch_regions.push(ffi::MCDCBranchRegion { - span, + cov_span, true_counter: ffi::Counter::from_term(true_term), false_counter: ffi::Counter::from_term(false_term), mcdc_branch_params: ffi::mcdc::BranchParameters::from(mcdc_params), @@ -163,7 +164,7 @@ fn fill_region_tables<'tcx>( } MappingKind::MCDCDecision(mcdc_decision_params) => { mcdc_decision_regions.push(ffi::MCDCDecisionRegion { - span, + cov_span, mcdc_decision_params: ffi::mcdc::DecisionParameters::from(mcdc_decision_params), }); } -- cgit 1.4.1-3-g733a5 From c3780e1d227d7544209e2cd722ac4fa35ac61b56 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 18 Dec 2024 21:23:48 +1100 Subject: coverage: Quietly skip functions that end up having no mappings In codegen, a used function with `FunctionCoverageInfo` but no mappings has historically indicated a bug. However, that will no longer be the case after moving some fallible span-processing steps into codegen. --- compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index f9e9555e8bd..dca1779d821 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -10,7 +10,6 @@ use rustc_abi::Align; use rustc_codegen_ssa::traits::{ BaseTypeCodegenMethods, ConstCodegenMethods, StaticCodegenMethods, }; -use rustc_middle::bug; use rustc_middle::mir::coverage::{ CovTerm, CoverageIdsInfo, Expression, FunctionCoverageInfo, Mapping, MappingKind, Op, }; @@ -67,12 +66,8 @@ pub(crate) fn prepare_covfun_record<'tcx>( fill_region_tables(tcx, global_file_table, fn_cov_info, ids_info, &mut covfun); if covfun.regions.has_no_regions() { - if covfun.is_used { - bug!("a used function should have had coverage mapping data but did not: {covfun:?}"); - } else { - debug!(?covfun, "unused function had no coverage mapping data"); - return None; - } + debug!(?covfun, "function has no mappings to embed; skipping"); + return None; } Some(covfun) -- cgit 1.4.1-3-g733a5 From 34ed51cb837d1dd755b9b97798a41c8cd0358ca6 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 18 Dec 2024 21:00:51 +1100 Subject: coverage: Store coverage source regions as `Span` until codegen --- .../rustc_codegen_llvm/src/coverageinfo/ffi.rs | 28 +--- .../rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 3 +- .../src/coverageinfo/mapgen/covfun.rs | 14 +- .../src/coverageinfo/mapgen/spans.rs | 126 ++++++++++++++++ compiler/rustc_codegen_llvm/src/lib.rs | 1 + compiler/rustc_middle/src/mir/coverage.rs | 18 +-- compiler/rustc_middle/src/mir/pretty.rs | 4 +- compiler/rustc_mir_transform/src/coverage/mod.rs | 168 +++------------------ .../branch_match_arms.main.InstrumentCoverage.diff | 12 +- ...instrument_coverage.bar.InstrumentCoverage.diff | 2 +- ...nstrument_coverage.main.InstrumentCoverage.diff | 10 +- ..._coverage_cleanup.main.CleanupPostBorrowck.diff | 10 +- ...t_coverage_cleanup.main.InstrumentCoverage.diff | 10 +- 13 files changed, 189 insertions(+), 217 deletions(-) create mode 100644 compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs index 4cad09b3a2d..b617f4d37f5 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs @@ -1,6 +1,4 @@ -use rustc_middle::mir::coverage::{CounterId, CovTerm, ExpressionId, SourceRegion}; - -use crate::coverageinfo::mapgen::LocalFileId; +use rustc_middle::mir::coverage::{CounterId, CovTerm, ExpressionId}; /// Must match the layout of `LLVMRustCounterKind`. #[derive(Copy, Clone, Debug)] @@ -126,30 +124,16 @@ pub(crate) struct CoverageSpan { /// Local index into the function's local-to-global file ID table. /// The value at that index is itself an index into the coverage filename /// table in the CGU's `__llvm_covmap` section. - file_id: u32, + pub(crate) file_id: u32, /// 1-based starting line of the source code span. - start_line: u32, + pub(crate) start_line: u32, /// 1-based starting column of the source code span. - start_col: u32, + pub(crate) start_col: u32, /// 1-based ending line of the source code span. - end_line: u32, + pub(crate) end_line: u32, /// 1-based ending column of the source code span. High bit must be unset. - end_col: u32, -} - -impl CoverageSpan { - pub(crate) fn from_source_region( - local_file_id: LocalFileId, - code_region: &SourceRegion, - ) -> Self { - let file_id = local_file_id.as_u32(); - let &SourceRegion { start_line, start_col, end_line, end_col } = code_region; - // Internally, LLVM uses the high bit of `end_col` to distinguish between - // code regions and gap regions, so it can't be used by the column number. - assert!(end_col & (1u32 << 31) == 0, "high bit of `end_col` must be unset: {end_col:#X}"); - Self { file_id, start_line, start_col, end_line, end_col } - } + pub(crate) end_col: u32, } /// Holds tables of the various region types in one struct. diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index ca334286200..7d3bb4f93f6 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -22,6 +22,7 @@ use crate::coverageinfo::mapgen::covfun::prepare_covfun_record; use crate::llvm; mod covfun; +mod spans; /// Generates and exports the coverage map, which is embedded in special /// linker sections in the final binary. @@ -182,7 +183,7 @@ rustc_index::newtype_index! { /// An index into a function's list of global file IDs. That underlying list /// of local-to-global mappings will be embedded in the function's record in /// the `__llvm_covfun` linker section. - pub(crate) struct LocalFileId {} + struct LocalFileId {} } /// Holds a mapping from "local" (per-function) file IDs to "global" (per-CGU) diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index dca1779d821..cde7a0ebc6d 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -14,11 +14,12 @@ use rustc_middle::mir::coverage::{ CovTerm, CoverageIdsInfo, Expression, FunctionCoverageInfo, Mapping, MappingKind, Op, }; use rustc_middle::ty::{Instance, TyCtxt}; +use rustc_span::Span; use rustc_target::spec::HasTargetSpec; use tracing::debug; use crate::common::CodegenCx; -use crate::coverageinfo::mapgen::{GlobalFileTable, VirtualFileMapping, span_file_name}; +use crate::coverageinfo::mapgen::{GlobalFileTable, VirtualFileMapping, span_file_name, spans}; use crate::coverageinfo::{ffi, llvm_cov}; use crate::llvm; @@ -117,6 +118,8 @@ fn fill_region_tables<'tcx>( ) { // Currently a function's mappings must all be in the same file as its body span. let file_name = span_file_name(tcx, fn_cov_info.body_span); + let source_map = tcx.sess.source_map(); + let source_file = source_map.lookup_source_file(fn_cov_info.body_span.lo()); // Look up the global file ID for that filename. let global_file_id = global_file_table.global_file_id_for_file_name(file_name); @@ -128,15 +131,20 @@ fn fill_region_tables<'tcx>( let ffi::Regions { code_regions, branch_regions, mcdc_branch_regions, mcdc_decision_regions } = &mut covfun.regions; + let make_cov_span = |span: Span| { + spans::make_coverage_span(local_file_id, source_map, fn_cov_info, &source_file, span) + }; + // For each counter/region pair in this function+file, convert it to a // form suitable for FFI. let is_zero_term = |term| !covfun.is_used || ids_info.is_zero_term(term); - for Mapping { kind, ref source_region } in &fn_cov_info.mappings { + for &Mapping { ref kind, span } in &fn_cov_info.mappings { // If the mapping refers to counters/expressions that were removed by // MIR opts, replace those occurrences with zero. let kind = kind.map_terms(|term| if is_zero_term(term) { CovTerm::Zero } else { term }); - let cov_span = ffi::CoverageSpan::from_source_region(local_file_id, source_region); + let Some(cov_span) = make_cov_span(span) else { continue }; + match kind { MappingKind::Code(term) => { code_regions diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs new file mode 100644 index 00000000000..6d1d91340c2 --- /dev/null +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs @@ -0,0 +1,126 @@ +use rustc_middle::mir::coverage::FunctionCoverageInfo; +use rustc_span::source_map::SourceMap; +use rustc_span::{BytePos, Pos, SourceFile, Span}; +use tracing::debug; + +use crate::coverageinfo::ffi; +use crate::coverageinfo::mapgen::LocalFileId; + +/// Converts the span into its start line and column, and end line and column. +/// +/// Line numbers and column numbers are 1-based. Unlike most column numbers emitted by +/// the compiler, these column numbers are denoted in **bytes**, because that's what +/// LLVM's `llvm-cov` tool expects to see in coverage maps. +/// +/// Returns `None` if the conversion failed for some reason. This shouldn't happen, +/// but it's hard to rule out entirely (especially in the presence of complex macros +/// or other expansions), and if it does happen then skipping a span or function is +/// better than an ICE or `llvm-cov` failure that the user might have no way to avoid. +pub(crate) fn make_coverage_span( + file_id: LocalFileId, + source_map: &SourceMap, + fn_cov_info: &FunctionCoverageInfo, + file: &SourceFile, + span: Span, +) -> Option { + let span = ensure_non_empty_span(source_map, fn_cov_info, span)?; + + let lo = span.lo(); + let hi = span.hi(); + + // Column numbers need to be in bytes, so we can't use the more convenient + // `SourceMap` methods for looking up file coordinates. + let line_and_byte_column = |pos: BytePos| -> Option<(usize, usize)> { + let rpos = file.relative_position(pos); + let line_index = file.lookup_line(rpos)?; + let line_start = file.lines()[line_index]; + // Line numbers and column numbers are 1-based, so add 1 to each. + Some((line_index + 1, (rpos - line_start).to_usize() + 1)) + }; + + let (mut start_line, start_col) = line_and_byte_column(lo)?; + let (mut end_line, end_col) = line_and_byte_column(hi)?; + + // Apply an offset so that code in doctests has correct line numbers. + // FIXME(#79417): Currently we have no way to offset doctest _columns_. + start_line = source_map.doctest_offset_line(&file.name, start_line); + end_line = source_map.doctest_offset_line(&file.name, end_line); + + check_coverage_span(ffi::CoverageSpan { + file_id: file_id.as_u32(), + start_line: start_line as u32, + start_col: start_col as u32, + end_line: end_line as u32, + end_col: end_col as u32, + }) +} + +fn ensure_non_empty_span( + source_map: &SourceMap, + fn_cov_info: &FunctionCoverageInfo, + span: Span, +) -> Option { + if !span.is_empty() { + return Some(span); + } + + let lo = span.lo(); + let hi = span.hi(); + + // The span is empty, so try to expand it to cover an adjacent '{' or '}', + // but only within the bounds of the body span. + let try_next = hi < fn_cov_info.body_span.hi(); + let try_prev = fn_cov_info.body_span.lo() < lo; + if !(try_next || try_prev) { + return None; + } + + source_map + .span_to_source(span, |src, start, end| try { + // Adjusting span endpoints by `BytePos(1)` is normally a bug, + // but in this case we have specifically checked that the character + // we're skipping over is one of two specific ASCII characters, so + // adjusting by exactly 1 byte is correct. + if try_next && src.as_bytes()[end] == b'{' { + Some(span.with_hi(hi + BytePos(1))) + } else if try_prev && src.as_bytes()[start - 1] == b'}' { + Some(span.with_lo(lo - BytePos(1))) + } else { + None + } + }) + .ok()? +} + +/// If `llvm-cov` sees a source region that is improperly ordered (end < start), +/// it will immediately exit with a fatal error. To prevent that from happening, +/// discard regions that are improperly ordered, or might be interpreted in a +/// way that makes them improperly ordered. +fn check_coverage_span(cov_span: ffi::CoverageSpan) -> Option { + let ffi::CoverageSpan { file_id: _, start_line, start_col, end_line, end_col } = cov_span; + + // Line/column coordinates are supposed to be 1-based. If we ever emit + // coordinates of 0, `llvm-cov` might misinterpret them. + let all_nonzero = [start_line, start_col, end_line, end_col].into_iter().all(|x| x != 0); + // Coverage mappings use the high bit of `end_col` to indicate that a + // region is actually a "gap" region, so make sure it's unset. + let end_col_has_high_bit_unset = (end_col & (1 << 31)) == 0; + // If a region is improperly ordered (end < start), `llvm-cov` will exit + // with a fatal error, which is inconvenient for users and hard to debug. + let is_ordered = (start_line, start_col) <= (end_line, end_col); + + if all_nonzero && end_col_has_high_bit_unset && is_ordered { + Some(cov_span) + } else { + debug!( + ?cov_span, + ?all_nonzero, + ?end_col_has_high_bit_unset, + ?is_ordered, + "Skipping source region that would be misinterpreted or rejected by LLVM" + ); + // If this happens in a debug build, ICE to make it easier to notice. + debug_assert!(false, "Improper source region: {cov_span:?}"); + None + } +} diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs index b079eb8fe0c..0de0c6a7a89 100644 --- a/compiler/rustc_codegen_llvm/src/lib.rs +++ b/compiler/rustc_codegen_llvm/src/lib.rs @@ -17,6 +17,7 @@ #![feature(iter_intersperse)] #![feature(let_chains)] #![feature(rustdoc_internals)] +#![feature(try_blocks)] #![warn(unreachable_pub)] // tidy-alphabetical-end diff --git a/compiler/rustc_middle/src/mir/coverage.rs b/compiler/rustc_middle/src/mir/coverage.rs index 962176290df..29f26180c97 100644 --- a/compiler/rustc_middle/src/mir/coverage.rs +++ b/compiler/rustc_middle/src/mir/coverage.rs @@ -154,22 +154,6 @@ impl Debug for CoverageKind { } } -#[derive(Clone, TyEncodable, TyDecodable, Hash, HashStable, PartialEq, Eq, PartialOrd, Ord)] -#[derive(TypeFoldable, TypeVisitable)] -pub struct SourceRegion { - pub start_line: u32, - pub start_col: u32, - pub end_line: u32, - pub end_col: u32, -} - -impl Debug for SourceRegion { - fn fmt(&self, fmt: &mut Formatter<'_>) -> fmt::Result { - let &Self { start_line, start_col, end_line, end_col } = self; - write!(fmt, "{start_line}:{start_col} - {end_line}:{end_col}") - } -} - #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, HashStable)] #[derive(TyEncodable, TyDecodable, TypeFoldable, TypeVisitable)] pub enum Op { @@ -231,7 +215,7 @@ impl MappingKind { #[derive(TyEncodable, TyDecodable, Hash, HashStable, TypeFoldable, TypeVisitable)] pub struct Mapping { pub kind: MappingKind, - pub source_region: SourceRegion, + pub span: Span, } /// Stores per-function coverage information attached to a `mir::Body`, diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs index 2bfcd0a6227..ece468947c2 100644 --- a/compiler/rustc_middle/src/mir/pretty.rs +++ b/compiler/rustc_middle/src/mir/pretty.rs @@ -603,8 +603,8 @@ fn write_function_coverage_info( for (id, expression) in expressions.iter_enumerated() { writeln!(w, "{INDENT}coverage {id:?} => {expression:?};")?; } - for coverage::Mapping { kind, source_region } in mappings { - writeln!(w, "{INDENT}coverage {kind:?} => {source_region:?};")?; + for coverage::Mapping { kind, span } in mappings { + writeln!(w, "{INDENT}coverage {kind:?} => {span:?};")?; } writeln!(w)?; diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs index 241c3c79114..83e7ff99639 100644 --- a/compiler/rustc_mir_transform/src/coverage/mod.rs +++ b/compiler/rustc_mir_transform/src/coverage/mod.rs @@ -13,16 +13,15 @@ use rustc_hir::intravisit::{Visitor, walk_expr}; use rustc_middle::hir::map::Map; use rustc_middle::hir::nested_filter; use rustc_middle::mir::coverage::{ - CoverageKind, DecisionInfo, FunctionCoverageInfo, Mapping, MappingKind, SourceRegion, + CoverageKind, DecisionInfo, FunctionCoverageInfo, Mapping, MappingKind, }; use rustc_middle::mir::{ self, BasicBlock, BasicBlockData, SourceInfo, Statement, StatementKind, Terminator, TerminatorKind, }; use rustc_middle::ty::TyCtxt; +use rustc_span::Span; use rustc_span::def_id::LocalDefId; -use rustc_span::source_map::SourceMap; -use rustc_span::{BytePos, Pos, SourceFile, Span}; use tracing::{debug, debug_span, trace}; use crate::coverage::counters::{CoverageCounters, Site}; @@ -97,7 +96,7 @@ fn instrument_function_for_coverage<'tcx>(tcx: TyCtxt<'tcx>, mir_body: &mut mir: let coverage_counters = CoverageCounters::make_bcb_counters(&basic_coverage_blocks, &bcbs_with_counter_mappings); - let mappings = create_mappings(tcx, &hir_info, &extracted_mappings, &coverage_counters); + let mappings = create_mappings(&extracted_mappings, &coverage_counters); if mappings.is_empty() { // No spans could be converted into valid mappings, so skip this function. debug!("no spans could be converted into valid mappings; skipping"); @@ -136,18 +135,12 @@ fn instrument_function_for_coverage<'tcx>(tcx: TyCtxt<'tcx>, mir_body: &mut mir: /// /// Precondition: All BCBs corresponding to those spans have been given /// coverage counters. -fn create_mappings<'tcx>( - tcx: TyCtxt<'tcx>, - hir_info: &ExtractedHirInfo, +fn create_mappings( extracted_mappings: &ExtractedMappings, coverage_counters: &CoverageCounters, ) -> Vec { - let source_map = tcx.sess.source_map(); - let file = source_map.lookup_source_file(hir_info.body_span.lo()); - let term_for_bcb = |bcb| coverage_counters.term_for_bcb(bcb).expect("all BCBs with spans were given counters"); - let region_for_span = |span: Span| make_source_region(source_map, hir_info, &file, span); // Fully destructure the mappings struct to make sure we don't miss any kinds. let ExtractedMappings { @@ -160,22 +153,20 @@ fn create_mappings<'tcx>( } = extracted_mappings; let mut mappings = Vec::new(); - mappings.extend(code_mappings.iter().filter_map( + mappings.extend(code_mappings.iter().map( // Ordinary code mappings are the simplest kind. |&mappings::CodeMapping { span, bcb }| { - let source_region = region_for_span(span)?; let kind = MappingKind::Code(term_for_bcb(bcb)); - Some(Mapping { kind, source_region }) + Mapping { kind, span } }, )); - mappings.extend(branch_pairs.iter().filter_map( + mappings.extend(branch_pairs.iter().map( |&mappings::BranchPair { span, true_bcb, false_bcb }| { let true_term = term_for_bcb(true_bcb); let false_term = term_for_bcb(false_bcb); let kind = MappingKind::Branch { true_term, false_term }; - let source_region = region_for_span(span)?; - Some(Mapping { kind, source_region }) + Mapping { kind, span } }, )); @@ -183,7 +174,7 @@ fn create_mappings<'tcx>( |bcb| coverage_counters.term_for_bcb(bcb).expect("all BCBs with spans were given counters"); // MCDC branch mappings are appended with their decisions in case decisions were ignored. - mappings.extend(mcdc_degraded_branches.iter().filter_map( + mappings.extend(mcdc_degraded_branches.iter().map( |&mappings::MCDCBranch { span, true_bcb, @@ -192,10 +183,9 @@ fn create_mappings<'tcx>( true_index: _, false_index: _, }| { - let source_region = region_for_span(span)?; let true_term = term_for_bcb(true_bcb); let false_term = term_for_bcb(false_bcb); - Some(Mapping { kind: MappingKind::Branch { true_term, false_term }, source_region }) + Mapping { kind: MappingKind::Branch { true_term, false_term }, span } }, )); @@ -203,7 +193,7 @@ fn create_mappings<'tcx>( let num_conditions = branches.len() as u16; let conditions = branches .into_iter() - .filter_map( + .map( |&mappings::MCDCBranch { span, true_bcb, @@ -212,32 +202,28 @@ fn create_mappings<'tcx>( true_index: _, false_index: _, }| { - let source_region = region_for_span(span)?; let true_term = term_for_bcb(true_bcb); let false_term = term_for_bcb(false_bcb); - Some(Mapping { + Mapping { kind: MappingKind::MCDCBranch { true_term, false_term, mcdc_params: condition_info, }, - source_region, - }) + span, + } }, ) .collect::>(); - if conditions.len() == num_conditions as usize - && let Some(source_region) = region_for_span(decision.span) - { + if conditions.len() == num_conditions as usize { // LLVM requires end index for counter mapping regions. let kind = MappingKind::MCDCDecision(DecisionInfo { bitmap_idx: (decision.bitmap_idx + decision.num_test_vectors) as u32, num_conditions, }); - mappings.extend( - std::iter::once(Mapping { kind, source_region }).chain(conditions.into_iter()), - ); + let span = decision.span; + mappings.extend(std::iter::once(Mapping { kind, span }).chain(conditions.into_iter())); } else { mappings.extend(conditions.into_iter().map(|mapping| { let MappingKind::MCDCBranch { true_term, false_term, mcdc_params: _ } = @@ -245,10 +231,7 @@ fn create_mappings<'tcx>( else { unreachable!("all mappings here are MCDCBranch as shown above"); }; - Mapping { - kind: MappingKind::Branch { true_term, false_term }, - source_region: mapping.source_region, - } + Mapping { kind: MappingKind::Branch { true_term, false_term }, span: mapping.span } })) } } @@ -391,121 +374,6 @@ fn inject_statement(mir_body: &mut mir::Body<'_>, counter_kind: CoverageKind, bb data.statements.insert(0, statement); } -fn ensure_non_empty_span( - source_map: &SourceMap, - hir_info: &ExtractedHirInfo, - span: Span, -) -> Option { - if !span.is_empty() { - return Some(span); - } - - let lo = span.lo(); - let hi = span.hi(); - - // The span is empty, so try to expand it to cover an adjacent '{' or '}', - // but only within the bounds of the body span. - let try_next = hi < hir_info.body_span.hi(); - let try_prev = hir_info.body_span.lo() < lo; - if !(try_next || try_prev) { - return None; - } - - source_map - .span_to_source(span, |src, start, end| try { - // We're only checking for specific ASCII characters, so we don't - // have to worry about multi-byte code points. - if try_next && src.as_bytes()[end] == b'{' { - Some(span.with_hi(hi + BytePos(1))) - } else if try_prev && src.as_bytes()[start - 1] == b'}' { - Some(span.with_lo(lo - BytePos(1))) - } else { - None - } - }) - .ok()? -} - -/// Converts the span into its start line and column, and end line and column. -/// -/// Line numbers and column numbers are 1-based. Unlike most column numbers emitted by -/// the compiler, these column numbers are denoted in **bytes**, because that's what -/// LLVM's `llvm-cov` tool expects to see in coverage maps. -/// -/// Returns `None` if the conversion failed for some reason. This shouldn't happen, -/// but it's hard to rule out entirely (especially in the presence of complex macros -/// or other expansions), and if it does happen then skipping a span or function is -/// better than an ICE or `llvm-cov` failure that the user might have no way to avoid. -fn make_source_region( - source_map: &SourceMap, - hir_info: &ExtractedHirInfo, - file: &SourceFile, - span: Span, -) -> Option { - let span = ensure_non_empty_span(source_map, hir_info, span)?; - - let lo = span.lo(); - let hi = span.hi(); - - // Column numbers need to be in bytes, so we can't use the more convenient - // `SourceMap` methods for looking up file coordinates. - let line_and_byte_column = |pos: BytePos| -> Option<(usize, usize)> { - let rpos = file.relative_position(pos); - let line_index = file.lookup_line(rpos)?; - let line_start = file.lines()[line_index]; - // Line numbers and column numbers are 1-based, so add 1 to each. - Some((line_index + 1, (rpos - line_start).to_usize() + 1)) - }; - - let (mut start_line, start_col) = line_and_byte_column(lo)?; - let (mut end_line, end_col) = line_and_byte_column(hi)?; - - // Apply an offset so that code in doctests has correct line numbers. - // FIXME(#79417): Currently we have no way to offset doctest _columns_. - start_line = source_map.doctest_offset_line(&file.name, start_line); - end_line = source_map.doctest_offset_line(&file.name, end_line); - - check_source_region(SourceRegion { - start_line: start_line as u32, - start_col: start_col as u32, - end_line: end_line as u32, - end_col: end_col as u32, - }) -} - -/// If `llvm-cov` sees a source region that is improperly ordered (end < start), -/// it will immediately exit with a fatal error. To prevent that from happening, -/// discard regions that are improperly ordered, or might be interpreted in a -/// way that makes them improperly ordered. -fn check_source_region(source_region: SourceRegion) -> Option { - let SourceRegion { start_line, start_col, end_line, end_col } = source_region; - - // Line/column coordinates are supposed to be 1-based. If we ever emit - // coordinates of 0, `llvm-cov` might misinterpret them. - let all_nonzero = [start_line, start_col, end_line, end_col].into_iter().all(|x| x != 0); - // Coverage mappings use the high bit of `end_col` to indicate that a - // region is actually a "gap" region, so make sure it's unset. - let end_col_has_high_bit_unset = (end_col & (1 << 31)) == 0; - // If a region is improperly ordered (end < start), `llvm-cov` will exit - // with a fatal error, which is inconvenient for users and hard to debug. - let is_ordered = (start_line, start_col) <= (end_line, end_col); - - if all_nonzero && end_col_has_high_bit_unset && is_ordered { - Some(source_region) - } else { - debug!( - ?source_region, - ?all_nonzero, - ?end_col_has_high_bit_unset, - ?is_ordered, - "Skipping source region that would be misinterpreted or rejected by LLVM" - ); - // If this happens in a debug build, ICE to make it easier to notice. - debug_assert!(false, "Improper source region: {source_region:?}"); - None - } -} - /// Function information extracted from HIR by the coverage instrumentor. #[derive(Debug)] struct ExtractedHirInfo { diff --git a/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff index f0d128ec02e..69ef6016d25 100644 --- a/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff +++ b/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff @@ -30,12 +30,12 @@ + coverage ExpressionId(0) => Expression { lhs: Counter(1), op: Add, rhs: Counter(2) }; + coverage ExpressionId(1) => Expression { lhs: Expression(0), op: Add, rhs: Counter(3) }; + coverage ExpressionId(2) => Expression { lhs: Counter(0), op: Subtract, rhs: Expression(1) }; -+ coverage Code(Counter(0)) => 13:1 - 14:21; -+ coverage Code(Counter(1)) => 15:17 - 15:33; -+ coverage Code(Counter(2)) => 16:17 - 16:33; -+ coverage Code(Counter(3)) => 17:17 - 17:33; -+ coverage Code(Expression(2)) => 18:17 - 18:33; -+ coverage Code(Counter(0)) => 20:1 - 20:2; ++ coverage Code(Counter(0)) => $DIR/branch_match_arms.rs:13:1: 14:21 (#0); ++ coverage Code(Counter(1)) => $DIR/branch_match_arms.rs:15:17: 15:33 (#0); ++ coverage Code(Counter(2)) => $DIR/branch_match_arms.rs:16:17: 16:33 (#0); ++ coverage Code(Counter(3)) => $DIR/branch_match_arms.rs:17:17: 17:33 (#0); ++ coverage Code(Expression(2)) => $DIR/branch_match_arms.rs:18:17: 18:33 (#0); ++ coverage Code(Counter(0)) => $DIR/branch_match_arms.rs:20:2: 20:2 (#0); + bb0: { + Coverage::CounterIncrement(0); diff --git a/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff index 2efb1fd0a17..148ff86354b 100644 --- a/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff +++ b/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff @@ -5,7 +5,7 @@ let mut _0: bool; + coverage body span: $DIR/instrument_coverage.rs:19:18: 21:2 (#0) -+ coverage Code(Counter(0)) => 19:1 - 21:2; ++ coverage Code(Counter(0)) => $DIR/instrument_coverage.rs:19:1: 21:2 (#0); + bb0: { + Coverage::CounterIncrement(0); diff --git a/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff index a179824d6c7..b480d1ac13a 100644 --- a/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff +++ b/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff @@ -9,11 +9,11 @@ + coverage body span: $DIR/instrument_coverage.rs:10:11: 16:2 (#0) + coverage ExpressionId(0) => Expression { lhs: Counter(0), op: Add, rhs: Counter(1) }; -+ coverage Code(Counter(0)) => 10:1 - 10:11; -+ coverage Code(Expression(0)) => 12:12 - 12:17; -+ coverage Code(Counter(0)) => 13:13 - 13:18; -+ coverage Code(Counter(1)) => 14:9 - 14:10; -+ coverage Code(Counter(0)) => 16:1 - 16:2; ++ coverage Code(Counter(0)) => $DIR/instrument_coverage.rs:10:1: 10:11 (#0); ++ coverage Code(Expression(0)) => $DIR/instrument_coverage.rs:12:12: 12:17 (#0); ++ coverage Code(Counter(0)) => $DIR/instrument_coverage.rs:13:13: 13:18 (#0); ++ coverage Code(Counter(1)) => $DIR/instrument_coverage.rs:14:10: 14:10 (#0); ++ coverage Code(Counter(0)) => $DIR/instrument_coverage.rs:16:2: 16:2 (#0); + bb0: { + Coverage::CounterIncrement(0); diff --git a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff index 082539369f7..2c7ec6e85eb 100644 --- a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff +++ b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff @@ -9,11 +9,11 @@ coverage body span: $DIR/instrument_coverage_cleanup.rs:13:11: 15:2 (#0) coverage ExpressionId(0) => Expression { lhs: Counter(0), op: Subtract, rhs: Counter(1) }; - coverage Code(Counter(0)) => 13:1 - 14:36; - coverage Code(Expression(0)) => 14:37 - 14:39; - coverage Code(Counter(1)) => 14:38 - 14:39; - coverage Code(Counter(0)) => 15:1 - 15:2; - coverage Branch { true_term: Expression(0), false_term: Counter(1) } => 14:8 - 14:36; + coverage Code(Counter(0)) => $DIR/instrument_coverage_cleanup.rs:13:1: 14:36 (#0); + coverage Code(Expression(0)) => $DIR/instrument_coverage_cleanup.rs:14:37: 14:39 (#0); + coverage Code(Counter(1)) => $DIR/instrument_coverage_cleanup.rs:14:39: 14:39 (#0); + coverage Code(Counter(0)) => $DIR/instrument_coverage_cleanup.rs:15:2: 15:2 (#0); + coverage Branch { true_term: Expression(0), false_term: Counter(1) } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0); bb0: { Coverage::CounterIncrement(0); diff --git a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff index 8635818c6a7..c08265eb0e9 100644 --- a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff +++ b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff @@ -9,11 +9,11 @@ + coverage body span: $DIR/instrument_coverage_cleanup.rs:13:11: 15:2 (#0) + coverage ExpressionId(0) => Expression { lhs: Counter(0), op: Subtract, rhs: Counter(1) }; -+ coverage Code(Counter(0)) => 13:1 - 14:36; -+ coverage Code(Expression(0)) => 14:37 - 14:39; -+ coverage Code(Counter(1)) => 14:38 - 14:39; -+ coverage Code(Counter(0)) => 15:1 - 15:2; -+ coverage Branch { true_term: Expression(0), false_term: Counter(1) } => 14:8 - 14:36; ++ coverage Code(Counter(0)) => $DIR/instrument_coverage_cleanup.rs:13:1: 14:36 (#0); ++ coverage Code(Expression(0)) => $DIR/instrument_coverage_cleanup.rs:14:37: 14:39 (#0); ++ coverage Code(Counter(1)) => $DIR/instrument_coverage_cleanup.rs:14:39: 14:39 (#0); ++ coverage Code(Counter(0)) => $DIR/instrument_coverage_cleanup.rs:15:2: 15:2 (#0); ++ coverage Branch { true_term: Expression(0), false_term: Counter(1) } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0); + bb0: { + Coverage::CounterIncrement(0); -- cgit 1.4.1-3-g733a5 From 837a25dd41a1cc58cee093159a01f73719f330e8 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 18 Dec 2024 21:19:30 +1100 Subject: coverage: Identify source files by ID, not by interned filename --- .../src/coverageinfo/llvm_cov.rs | 5 +- .../rustc_codegen_llvm/src/coverageinfo/mapgen.rs | 57 +++++++++++----------- .../src/coverageinfo/mapgen/covfun.rs | 8 ++- 3 files changed, 33 insertions(+), 37 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs index 086cf1f44a0..2cd7fa3225a 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs @@ -40,11 +40,10 @@ pub(crate) fn create_pgo_func_name_var<'ll>( } } -pub(crate) fn write_filenames_to_buffer<'a>( - filenames: impl IntoIterator, -) -> Vec { +pub(crate) fn write_filenames_to_buffer(filenames: &[impl AsRef]) -> Vec { let (pointers, lengths) = filenames .into_iter() + .map(AsRef::as_ref) .map(|s: &str| (s.as_c_char_ptr(), s.len())) .unzip::<_, _, Vec<_>, Vec<_>>(); diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index 7d3bb4f93f6..b3ad2a0e409 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -1,11 +1,11 @@ -use std::iter; +use std::sync::Arc; use itertools::Itertools; use rustc_abi::Align; use rustc_codegen_ssa::traits::{ BaseTypeCodegenMethods, ConstCodegenMethods, StaticCodegenMethods, }; -use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; +use rustc_data_structures::fx::{FxHashSet, FxIndexMap}; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_index::IndexVec; use rustc_middle::mir; @@ -13,7 +13,7 @@ use rustc_middle::ty::{self, TyCtxt}; use rustc_session::RemapFileNameExt; use rustc_session::config::RemapPathScopeComponents; use rustc_span::def_id::DefIdSet; -use rustc_span::{Span, Symbol}; +use rustc_span::{SourceFile, StableSourceFileId}; use tracing::debug; use crate::common::CodegenCx; @@ -132,45 +132,51 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) { generate_covmap_record(cx, covmap_version, &filenames_buffer); } -/// Maps "global" (per-CGU) file ID numbers to their underlying filenames. +/// Maps "global" (per-CGU) file ID numbers to their underlying source files. struct GlobalFileTable { - /// This "raw" table doesn't include the working dir, so a filename's + /// This "raw" table doesn't include the working dir, so a file's /// global ID is its index in this set **plus one**. - raw_file_table: FxIndexSet, + raw_file_table: FxIndexMap>, } impl GlobalFileTable { fn new() -> Self { - Self { raw_file_table: FxIndexSet::default() } + Self { raw_file_table: FxIndexMap::default() } } - fn global_file_id_for_file_name(&mut self, file_name: Symbol) -> GlobalFileId { + fn global_file_id_for_file(&mut self, file: &Arc) -> GlobalFileId { // Ensure the given file has a table entry, and get its index. - let (raw_id, _) = self.raw_file_table.insert_full(file_name); + let entry = self.raw_file_table.entry(file.stable_id); + let raw_id = entry.index(); + entry.or_insert_with(|| Arc::clone(file)); + // The raw file table doesn't include an entry for the working dir // (which has ID 0), so add 1 to get the correct ID. GlobalFileId::from_usize(raw_id + 1) } fn make_filenames_buffer(&self, tcx: TyCtxt<'_>) -> Vec { + let mut table = Vec::with_capacity(self.raw_file_table.len() + 1); + // LLVM Coverage Mapping Format version 6 (zero-based encoded as 5) // requires setting the first filename to the compilation directory. // Since rustc generates coverage maps with relative paths, the // compilation directory can be combined with the relative paths // to get absolute paths, if needed. - use rustc_session::RemapFileNameExt; - use rustc_session::config::RemapPathScopeComponents; - let working_dir: &str = &tcx - .sess - .opts - .working_dir - .for_scope(tcx.sess, RemapPathScopeComponents::MACRO) - .to_string_lossy(); - - // Insert the working dir at index 0, before the other filenames. - let filenames = - iter::once(working_dir).chain(self.raw_file_table.iter().map(Symbol::as_str)); - llvm_cov::write_filenames_to_buffer(filenames) + table.push( + tcx.sess + .opts + .working_dir + .for_scope(tcx.sess, RemapPathScopeComponents::MACRO) + .to_string_lossy(), + ); + + // Add the regular entries after the base directory. + table.extend(self.raw_file_table.values().map(|file| { + file.name.for_scope(tcx.sess, RemapPathScopeComponents::MACRO).to_string_lossy() + })); + + llvm_cov::write_filenames_to_buffer(&table) } } @@ -209,13 +215,6 @@ impl VirtualFileMapping { } } -fn span_file_name(tcx: TyCtxt<'_>, span: Span) -> Symbol { - let source_file = tcx.sess.source_map().lookup_source_file(span.lo()); - let name = - source_file.name.for_scope(tcx.sess, RemapPathScopeComponents::MACRO).to_string_lossy(); - Symbol::intern(&name) -} - /// Generates the contents of the covmap record for this CGU, which mostly /// consists of a header and a list of filenames. The record is then stored /// as a global variable in the `__llvm_covmap` section. diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index cde7a0ebc6d..6ce6626f290 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -19,7 +19,7 @@ use rustc_target::spec::HasTargetSpec; use tracing::debug; use crate::common::CodegenCx; -use crate::coverageinfo::mapgen::{GlobalFileTable, VirtualFileMapping, span_file_name, spans}; +use crate::coverageinfo::mapgen::{GlobalFileTable, VirtualFileMapping, spans}; use crate::coverageinfo::{ffi, llvm_cov}; use crate::llvm; @@ -117,16 +117,14 @@ fn fill_region_tables<'tcx>( covfun: &mut CovfunRecord<'tcx>, ) { // Currently a function's mappings must all be in the same file as its body span. - let file_name = span_file_name(tcx, fn_cov_info.body_span); let source_map = tcx.sess.source_map(); let source_file = source_map.lookup_source_file(fn_cov_info.body_span.lo()); - // Look up the global file ID for that filename. - let global_file_id = global_file_table.global_file_id_for_file_name(file_name); + // Look up the global file ID for that file. + let global_file_id = global_file_table.global_file_id_for_file(&source_file); // Associate that global file ID with a local file ID for this function. let local_file_id = covfun.virtual_file_mapping.local_id_for_global(global_file_id); - debug!(" file id: {local_file_id:?} => {global_file_id:?} = '{file_name:?}'"); let ffi::Regions { code_regions, branch_regions, mcdc_branch_regions, mcdc_decision_regions } = &mut covfun.regions; -- cgit 1.4.1-3-g733a5 From aced4dcf1047aab08b769b34fae9d4ba7de87f04 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Thu, 19 Dec 2024 21:53:10 +1100 Subject: coverage: Add a synthetic test for when all spans are discarded --- .../src/coverageinfo/mapgen/covfun.rs | 11 ++++++++++ compiler/rustc_interface/src/tests.rs | 6 +++++- compiler/rustc_session/src/config.rs | 10 +++++++-- compiler/rustc_session/src/options.rs | 1 + compiler/rustc_session/src/session.rs | 5 +++++ tests/coverage/auxiliary/discard_all_helper.rs | 6 ++++++ tests/coverage/discard-all-issue-133606.coverage | 7 +++++++ tests/coverage/discard-all-issue-133606.rs | 24 ++++++++++++++++++++++ 8 files changed, 67 insertions(+), 3 deletions(-) create mode 100644 tests/coverage/auxiliary/discard_all_helper.rs create mode 100644 tests/coverage/discard-all-issue-133606.coverage create mode 100644 tests/coverage/discard-all-issue-133606.rs (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index 6ce6626f290..5428d776f41 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -132,6 +132,7 @@ fn fill_region_tables<'tcx>( let make_cov_span = |span: Span| { spans::make_coverage_span(local_file_id, source_map, fn_cov_info, &source_file, span) }; + let discard_all = tcx.sess.coverage_discard_all_spans_in_codegen(); // For each counter/region pair in this function+file, convert it to a // form suitable for FFI. @@ -141,7 +142,17 @@ fn fill_region_tables<'tcx>( // MIR opts, replace those occurrences with zero. let kind = kind.map_terms(|term| if is_zero_term(term) { CovTerm::Zero } else { term }); + // Convert the `Span` into coordinates that we can pass to LLVM, or + // discard the span if conversion fails. In rare, cases _all_ of a + // function's spans are discarded, and the rest of coverage codegen + // needs to handle that gracefully to avoid a repeat of #133606. + // We don't have a good test case for triggering that organically, so + // instead we set `-Zcoverage-options=discard-all-spans-in-codegen` + // to force it to occur. let Some(cov_span) = make_cov_span(span) else { continue }; + if discard_all { + continue; + } match kind { MappingKind::Code(term) => { diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index d103f7f45e2..9ad69039914 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -766,7 +766,11 @@ fn test_unstable_options_tracking_hash() { }) ); tracked!(codegen_backend, Some("abc".to_string())); - tracked!(coverage_options, CoverageOptions { level: CoverageLevel::Mcdc, no_mir_spans: true }); + tracked!(coverage_options, CoverageOptions { + level: CoverageLevel::Mcdc, + no_mir_spans: true, + discard_all_spans_in_codegen: true + }); tracked!(crate_attr, vec!["abc".to_string()]); tracked!(cross_crate_inline_threshold, InliningThreshold::Always); tracked!(debug_info_for_profiling, true); diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 4784a4d1953..047e920e688 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -147,18 +147,24 @@ pub enum InstrumentCoverage { Yes, } -/// Individual flag values controlled by `-Z coverage-options`. +/// Individual flag values controlled by `-Zcoverage-options`. #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, Default)] pub struct CoverageOptions { pub level: CoverageLevel, - /// `-Z coverage-options=no-mir-spans`: Don't extract block coverage spans + /// `-Zcoverage-options=no-mir-spans`: Don't extract block coverage spans /// from MIR statements/terminators, making it easier to inspect/debug /// branch and MC/DC coverage mappings. /// /// For internal debugging only. If other code changes would make it hard /// to keep supporting this flag, remove it. pub no_mir_spans: bool, + + /// `-Zcoverage-options=discard-all-spans-in-codegen`: During codgen, + /// discard all coverage spans as though they were invalid. Needed by + /// regression tests for #133606, because we don't have an easy way to + /// reproduce it from actual source code. + pub discard_all_spans_in_codegen: bool, } /// Controls whether branch coverage or MC/DC coverage is enabled. diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 3873a203bd3..3772a4a08af 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -1037,6 +1037,7 @@ pub mod parse { "condition" => slot.level = CoverageLevel::Condition, "mcdc" => slot.level = CoverageLevel::Mcdc, "no-mir-spans" => slot.no_mir_spans = true, + "discard-all-spans-in-codegen" => slot.discard_all_spans_in_codegen = true, _ => return false, } } diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs index 9f6106f9cfb..54bb4622963 100644 --- a/compiler/rustc_session/src/session.rs +++ b/compiler/rustc_session/src/session.rs @@ -352,6 +352,11 @@ impl Session { self.opts.unstable_opts.coverage_options.no_mir_spans } + /// True if `-Zcoverage-options=discard-all-spans-in-codegen` was passed. + pub fn coverage_discard_all_spans_in_codegen(&self) -> bool { + self.opts.unstable_opts.coverage_options.discard_all_spans_in_codegen + } + pub fn is_sanitizer_cfi_enabled(&self) -> bool { self.opts.unstable_opts.sanitizer.contains(SanitizerSet::CFI) } diff --git a/tests/coverage/auxiliary/discard_all_helper.rs b/tests/coverage/auxiliary/discard_all_helper.rs new file mode 100644 index 00000000000..9290bac7e53 --- /dev/null +++ b/tests/coverage/auxiliary/discard_all_helper.rs @@ -0,0 +1,6 @@ +//@ edition: 2021 + +// Force this function to be generated in its home crate, so that it ends up +// with normal coverage metadata. +#[inline(never)] +pub fn external_function() {} diff --git a/tests/coverage/discard-all-issue-133606.coverage b/tests/coverage/discard-all-issue-133606.coverage new file mode 100644 index 00000000000..8f5a32f6d70 --- /dev/null +++ b/tests/coverage/discard-all-issue-133606.coverage @@ -0,0 +1,7 @@ + LL| |//@ edition: 2021 + LL| | + LL| |// Force this function to be generated in its home crate, so that it ends up + LL| |// with normal coverage metadata. + LL| |#[inline(never)] + LL| 1|pub fn external_function() {} + diff --git a/tests/coverage/discard-all-issue-133606.rs b/tests/coverage/discard-all-issue-133606.rs new file mode 100644 index 00000000000..91c278b2bb8 --- /dev/null +++ b/tests/coverage/discard-all-issue-133606.rs @@ -0,0 +1,24 @@ +//! Regression test for . +//! +//! In rare cases, all of a function's coverage spans are discarded at a late +//! stage during codegen. When that happens, the subsequent code needs to take +//! special care to avoid emitting coverage metadata that would cause `llvm-cov` +//! to fail with a fatal error. +//! +//! We currently don't know of a concise way to reproduce that scenario with +//! ordinary Rust source code, so instead we set a special testing-only flag to +//! force it to occur. + +//@ edition: 2021 +//@ compile-flags: -Zcoverage-options=discard-all-spans-in-codegen + +// The `llvm-cov` tool will complain if the test binary ends up having no +// coverage metadata at all. To prevent that, we also link to instrumented +// code in an auxiliary crate that doesn't have the special flag set. + +//@ aux-build: discard_all_helper.rs +extern crate discard_all_helper; + +fn main() { + discard_all_helper::external_function(); +} -- cgit 1.4.1-3-g733a5 From c02c311d84a919f6be3b797866100214c91c5b68 Mon Sep 17 00:00:00 2001 From: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Fri, 20 Dec 2024 15:20:15 +0000 Subject: Remove some dead code around import library generation This was missed when replacing the usage of LLVM for generating import libraries. --- compiler/rustc_codegen_llvm/src/llvm/ffi.rs | 28 ------------- compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp | 50 ------------------------ 2 files changed, 78 deletions(-) (limited to 'compiler/rustc_codegen_llvm') diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index d62632d1431..9a2bfd95562 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -56,25 +56,6 @@ pub enum LLVMRustResult { Failure, } -// Rust version of the C struct with the same name in rustc_llvm/llvm-wrapper/RustWrapper.cpp. -#[repr(C)] -pub struct LLVMRustCOFFShortExport { - pub name: *const c_char, - pub ordinal_present: bool, - /// value of `ordinal` only important when `ordinal_present` is true - pub ordinal: u16, -} - -impl LLVMRustCOFFShortExport { - pub fn new(name: *const c_char, ordinal: Option) -> LLVMRustCOFFShortExport { - LLVMRustCOFFShortExport { - name, - ordinal_present: ordinal.is_some(), - ordinal: ordinal.unwrap_or(0), - } - } -} - /// Translation of LLVM's MachineTypes enum, defined in llvm\include\llvm\BinaryFormat\COFF.h. /// /// We include only architectures supported on Windows. @@ -2347,15 +2328,6 @@ unsafe extern "C" { ) -> &'a mut RustArchiveMember<'a>; pub fn LLVMRustArchiveMemberFree<'a>(Member: &'a mut RustArchiveMember<'a>); - pub fn LLVMRustWriteImportLibrary( - ImportName: *const c_char, - Path: *const c_char, - Exports: *const LLVMRustCOFFShortExport, - NumExports: usize, - Machine: u16, - MinGW: bool, - ) -> LLVMRustResult; - pub fn LLVMRustSetDataLayoutFromTargetMachine<'a>(M: &'a Module, TM: &'a TargetMachine); pub fn LLVMRustPositionBuilderAtStart<'a>(B: &Builder<'a>, BB: &'a BasicBlock); diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp index b79205ff946..36441a95adb 100644 --- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp @@ -1796,56 +1796,6 @@ extern "C" LLVMValueRef LLVMRustBuildMaxNum(LLVMBuilderRef B, LLVMValueRef LHS, return wrap(unwrap(B)->CreateMaxNum(unwrap(LHS), unwrap(RHS))); } -// This struct contains all necessary info about a symbol exported from a DLL. -struct LLVMRustCOFFShortExport { - const char *name; - bool ordinal_present; - // The value of `ordinal` is only meaningful if `ordinal_present` is true. - uint16_t ordinal; -}; - -// Machine must be a COFF machine type, as defined in PE specs. -extern "C" LLVMRustResult -LLVMRustWriteImportLibrary(const char *ImportName, const char *Path, - const LLVMRustCOFFShortExport *Exports, - size_t NumExports, uint16_t Machine, bool MinGW) { - std::vector ConvertedExports; - ConvertedExports.reserve(NumExports); - - for (size_t i = 0; i < NumExports; ++i) { - bool ordinal_present = Exports[i].ordinal_present; - uint16_t ordinal = ordinal_present ? Exports[i].ordinal : 0; - ConvertedExports.push_back(llvm::object::COFFShortExport{ - Exports[i].name, // Name - std::string{}, // ExtName - std::string{}, // SymbolName - std::string{}, // AliasTarget -#if LLVM_VERSION_GE(19, 0) - std::string{}, // ExportAs -#endif - ordinal, // Ordinal - ordinal_present, // Noname - false, // Data - false, // Private - false // Constant - }); - } - - auto Error = llvm::object::writeImportLibrary( - ImportName, Path, ConvertedExports, - static_cast(Machine), MinGW); - if (Error) { - std::string errorString; - auto stream = llvm::raw_string_ostream(errorString); - stream << Error; - stream.flush(); - LLVMRustSetLastError(errorString.c_str()); - return LLVMRustResult::Failure; - } else { - return LLVMRustResult::Success; - } -} - // Transfers ownership of DiagnosticHandler unique_ptr to the caller. extern "C" DiagnosticHandler * LLVMRustContextGetDiagnosticHandler(LLVMContextRef C) { -- cgit 1.4.1-3-g733a5