diff options
| author | The Miri Conjob Bot <miri@cron.bot> | 2023-12-14 05:02:50 +0000 |
|---|---|---|
| committer | The Miri Conjob Bot <miri@cron.bot> | 2023-12-14 05:02:50 +0000 |
| commit | 7d4f92a309b67a04bcb5729f0420b21812ea8aef (patch) | |
| tree | c45eac208e30cda04a260493b0b9645faf52d73f /compiler | |
| parent | 205fbf42569b3cd17e2cfe1f88f479deba5a9d3a (diff) | |
| parent | e6d1b0ec9859e6f5c29aaa3b6525fb625bf354ad (diff) | |
| download | rust-7d4f92a309b67a04bcb5729f0420b21812ea8aef.tar.gz rust-7d4f92a309b67a04bcb5729f0420b21812ea8aef.zip | |
Merge from rustc
Diffstat (limited to 'compiler')
175 files changed, 1773 insertions, 1028 deletions
diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs index a44b408feec..0bbdcb7f09e 100644 --- a/compiler/rustc_ast_lowering/src/expr.rs +++ b/compiler/rustc_ast_lowering/src/expr.rs @@ -1222,6 +1222,8 @@ impl<'hir> LoweringContext<'_, 'hir> { | ExprKind::Struct(..) | ExprKind::Tup(..) | ExprKind::Underscore => false, + // Check for unit struct constructor. + ExprKind::Path(..) => lower_ctx.extract_unit_struct_path(lhs).is_none(), // Check for tuple struct constructor. ExprKind::Call(callee, ..) => lower_ctx.extract_tuple_struct_path(callee).is_none(), ExprKind::Paren(e) => { diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 7e62bb9793d..2f366001d4b 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -18,7 +18,7 @@ use rustc_middle::mir::{ PlaceRef, ProjectionElem, Rvalue, Statement, StatementKind, Terminator, TerminatorKind, VarBindingForm, }; -use rustc_middle::ty::{self, suggest_constraining_type_params, PredicateKind, Ty}; +use rustc_middle::ty::{self, suggest_constraining_type_params, PredicateKind, Ty, TyCtxt}; use rustc_middle::util::CallKind; use rustc_mir_dataflow::move_paths::{InitKind, MoveOutIndex, MovePathIndex}; use rustc_span::def_id::LocalDefId; @@ -398,7 +398,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { } let typeck = self.infcx.tcx.typeck(self.mir_def_id()); let hir_id = hir.parent_id(expr.hir_id); - if let Some(parent) = hir.find(hir_id) { + if let Some(parent) = self.infcx.tcx.opt_hir_node(hir_id) { let (def_id, args, offset) = if let hir::Node::Expr(parent_expr) = parent && let hir::ExprKind::MethodCall(_, _, args, _) = parent_expr.kind && let Some(def_id) = typeck.type_dependent_def_id(parent_expr.hir_id) @@ -413,7 +413,10 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { (None, &[][..], 0) }; if let Some(def_id) = def_id - && let Some(node) = hir.find(self.infcx.tcx.local_def_id_to_hir_id(def_id)) + && let Some(node) = self + .infcx + .tcx + .opt_hir_node(self.infcx.tcx.local_def_id_to_hir_id(def_id)) && let Some(fn_sig) = node.fn_sig() && let Some(ident) = node.ident() && let Some(pos) = args.iter().position(|arg| arg.hir_id == expr.hir_id) @@ -1317,7 +1320,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let tcx = self.infcx.tcx; let hir = tcx.hir(); - let Some(body_id) = hir.get(self.mir_hir_id()).body_id() else { return }; + let Some(body_id) = tcx.hir_node(self.mir_hir_id()).body_id() else { return }; let typeck_results = tcx.typeck(self.mir_def_id()); struct ExprFinder<'hir> { @@ -1509,7 +1512,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let local_ty = self.body.local_decls[local].ty; // Get the body the error happens in - let Some(body_id) = hir.get(self.mir_hir_id()).body_id() else { return }; + let Some(body_id) = tcx.hir_node(self.mir_hir_id()).body_id() else { return }; let body_expr = hir.body(body_id).value; @@ -1558,7 +1561,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { // Check that the parent of the closure is a method call, // with receiver matching with local's type (modulo refs) let parent = hir.parent_id(closure_expr.hir_id); - if let hir::Node::Expr(parent) = hir.get(parent) { + if let hir::Node::Expr(parent) = tcx.hir_node(parent) { if let hir::ExprKind::MethodCall(_, recv, ..) = parent.kind { let recv_ty = typeck_results.expr_ty(recv); @@ -1635,15 +1638,14 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { issued_spans: &UseSpans<'tcx>, ) { let UseSpans::ClosureUse { capture_kind_span, .. } = issued_spans else { return }; - let hir = self.infcx.tcx.hir(); - struct ExpressionFinder<'hir> { + struct ExpressionFinder<'tcx> { capture_span: Span, closure_change_spans: Vec<Span>, closure_arg_span: Option<Span>, in_closure: bool, suggest_arg: String, - hir: rustc_middle::hir::map::Map<'hir>, + tcx: TyCtxt<'tcx>, closure_local_id: Option<hir::HirId>, closure_call_changes: Vec<(Span, String)>, } @@ -1657,7 +1659,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { fn_decl: hir::FnDecl { inputs, .. }, .. }) = e.kind - && let Some(hir::Node::Expr(body)) = self.hir.find(body.hir_id) + && let Some(hir::Node::Expr(body)) = self.tcx.opt_hir_node(body.hir_id) { self.suggest_arg = "this: &Self".to_string(); if inputs.len() > 0 { @@ -1722,8 +1724,8 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { if let Some(hir::Node::ImplItem(hir::ImplItem { kind: hir::ImplItemKind::Fn(_fn_sig, body_id), .. - })) = hir.find(self.mir_hir_id()) - && let Some(hir::Node::Expr(expr)) = hir.find(body_id.hir_id) + })) = self.infcx.tcx.opt_hir_node(self.mir_hir_id()) + && let Some(hir::Node::Expr(expr)) = self.infcx.tcx.opt_hir_node(body_id.hir_id) { let mut finder = ExpressionFinder { capture_span: *capture_kind_span, @@ -1733,7 +1735,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { suggest_arg: String::new(), closure_local_id: None, closure_call_changes: vec![], - hir, + tcx: self.infcx.tcx, }; finder.visit_expr(expr); @@ -2294,7 +2296,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let proper_span = proper_span.source_callsite(); if let Some(scope) = self.body.source_scopes.get(source_info.scope) && let ClearCrossCrate::Set(scope_data) = &scope.local_data - && let Some(node) = self.infcx.tcx.hir().find(scope_data.lint_root) + && let Some(node) = self.infcx.tcx.opt_hir_node(scope_data.lint_root) && let Some(id) = node.body_id() && let hir::ExprKind::Block(block, _) = self.infcx.tcx.hir().body(id).value.kind { diff --git a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs index bed3df4809d..f1e712d814a 100644 --- a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs +++ b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs @@ -87,7 +87,7 @@ impl<'tcx> BorrowExplanation<'tcx> { if let hir::ExprKind::Path(hir::QPath::Resolved(None, p)) = expr.kind && let [hir::PathSegment { ident, args: None, .. }] = p.segments && let hir::def::Res::Local(hir_id) = p.res - && let Some(hir::Node::Pat(pat)) = tcx.hir().find(hir_id) + && let Some(hir::Node::Pat(pat)) = tcx.opt_hir_node(hir_id) { err.span_label(pat.span, format!("binding `{ident}` declared here")); } diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index 1844e766a82..1616b5e99bf 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -1204,7 +1204,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { }; err.multipart_suggestion_verbose( msg, - sugg.clone(), + sugg, Applicability::MaybeIncorrect, ); for error in errors { diff --git a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs index 8fe552708ed..c3c1f1293d2 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs @@ -396,7 +396,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { let upvar_hir_id = captured_place.get_root_variable(); - if let Some(Node::Pat(pat)) = self.infcx.tcx.hir().find(upvar_hir_id) + if let Some(Node::Pat(pat)) = self.infcx.tcx.opt_hir_node(upvar_hir_id) && let hir::PatKind::Binding(hir::BindingAnnotation::NONE, _, upvar_ident, _) = pat.kind { @@ -661,7 +661,6 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { if self.body.local_kind(local) != LocalKind::Arg { return (false, None); } - let hir_map = self.infcx.tcx.hir(); let my_def = self.body.source.def_id(); let my_hir = self.infcx.tcx.local_def_id_to_hir_id(my_def.as_local().unwrap()); let Some(td) = @@ -671,7 +670,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { }; ( true, - td.as_local().and_then(|tld| match hir_map.find_by_def_id(tld) { + td.as_local().and_then(|tld| match self.infcx.tcx.opt_hir_node_by_def_id(tld) { Some(Node::Item(hir::Item { kind: hir::ItemKind::Trait(_, _, _, _, items), .. @@ -682,25 +681,27 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { if !matches!(k, hir::AssocItemKind::Fn { .. }) { continue; } - if hir_map.name(hi) != hir_map.name(my_hir) { + if self.infcx.tcx.hir().name(hi) != self.infcx.tcx.hir().name(my_hir) { continue; } f_in_trait_opt = Some(hi); break; } - f_in_trait_opt.and_then(|f_in_trait| match hir_map.find(f_in_trait) { - Some(Node::TraitItem(hir::TraitItem { - kind: - hir::TraitItemKind::Fn( - hir::FnSig { decl: hir::FnDecl { inputs, .. }, .. }, - _, - ), - .. - })) => { - let hir::Ty { span, .. } = inputs[local.index() - 1]; - Some(span) + f_in_trait_opt.and_then(|f_in_trait| { + match self.infcx.tcx.opt_hir_node(f_in_trait) { + Some(Node::TraitItem(hir::TraitItem { + kind: + hir::TraitItemKind::Fn( + hir::FnSig { decl: hir::FnDecl { inputs, .. }, .. }, + _, + ), + .. + })) => { + let hir::Ty { span, .. } = inputs[local.index() - 1]; + Some(span) + } + _ => None, } - _ => None, }) } _ => None, @@ -741,12 +742,11 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } } - let hir_map = self.infcx.tcx.hir(); let def_id = self.body.source.def_id(); let hir_id = if let Some(local_def_id) = def_id.as_local() - && let Some(body_id) = hir_map.maybe_body_owned_by(local_def_id) + && let Some(body_id) = self.infcx.tcx.hir().maybe_body_owned_by(local_def_id) { - let body = hir_map.body(body_id); + let body = self.infcx.tcx.hir().body(body_id); let mut v = BindingFinder { span: pat_span, hir_id: None }; v.visit_body(body); v.hir_id @@ -762,7 +762,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { && let Some(hir::Node::Local(hir::Local { pat: hir::Pat { kind: hir::PatKind::Ref(_, _), .. }, .. - })) = hir_map.find(hir_id) + })) = self.infcx.tcx.opt_hir_node(hir_id) && let Ok(name) = self.infcx.tcx.sess.source_map().span_to_snippet(local_decl.source_info.span) { @@ -942,7 +942,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { let closure_id = self.mir_hir_id(); let closure_span = self.infcx.tcx.def_span(self.mir_def_id()); let fn_call_id = hir.parent_id(closure_id); - let node = hir.get(fn_call_id); + let node = self.infcx.tcx.hir_node(fn_call_id); let def_id = hir.enclosing_body_owner(fn_call_id); let mut look_at_return = true; // If we can detect the expression to be an `fn` call where the closure was an argument, @@ -1001,7 +1001,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { if look_at_return && hir.get_return_block(closure_id).is_some() { // ...otherwise we are probably in the tail expression of the function, point at the // return type. - match hir.get_by_def_id(hir.get_parent_item(fn_call_id).def_id) { + match self.infcx.tcx.hir_node_by_def_id(hir.get_parent_item(fn_call_id).def_id) { hir::Node::Item(hir::Item { ident, kind: hir::ItemKind::Fn(sig, ..), .. }) | hir::Node::TraitItem(hir::TraitItem { ident, @@ -1199,12 +1199,11 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { hir::intravisit::walk_stmt(self, s); } } - let hir_map = self.infcx.tcx.hir(); let def_id = self.body.source.def_id(); let hir_id = if let Some(local_def_id) = def_id.as_local() - && let Some(body_id) = hir_map.maybe_body_owned_by(local_def_id) + && let Some(body_id) = self.infcx.tcx.hir().maybe_body_owned_by(local_def_id) { - let body = hir_map.body(body_id); + let body = self.infcx.tcx.hir().body(body_id); let mut v = BindingFinder { span: err_label_span, hir_id: None }; v.visit_body(body); v.hir_id @@ -1213,7 +1212,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { }; if let Some(hir_id) = hir_id - && let Some(hir::Node::Local(local)) = hir_map.find(hir_id) + && let Some(hir::Node::Local(local)) = self.infcx.tcx.opt_hir_node(hir_id) { let tables = self.infcx.tcx.typeck(def_id.as_local().unwrap()); if let Some(clone_trait) = self.infcx.tcx.lang_items().clone_trait() @@ -1496,7 +1495,7 @@ fn get_mut_span_in_struct_field<'tcx>( && let ty::Adt(def, _) = ty.kind() && let field = def.all_fields().nth(field.index())? // Use the HIR types to construct the diagnostic message. - && let node = tcx.hir().find_by_def_id(field.did.as_local()?)? + && let node = tcx.opt_hir_node_by_def_id(field.did.as_local()?)? // Now we're dealing with the actual struct that we're going to suggest a change to, // we can expect a field that is an immutable reference to a type. && let hir::Node::Field(field) = node diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index a17c3bc3a78..4c3cef2e763 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -672,7 +672,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { let mir_hir_id = self.mir_hir_id(); - let (return_span, mir_description, hir_ty) = match hir.get(mir_hir_id) { + let (return_span, mir_description, hir_ty) = match tcx.hir_node(mir_hir_id) { hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { fn_decl, body, fn_decl_span, .. }), .. @@ -689,7 +689,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { hir::CoroutineSource::Closure => " of async closure", hir::CoroutineSource::Fn => { let parent_item = - hir.get_by_def_id(hir.get_parent_item(mir_hir_id).def_id); + tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); let output = &parent_item .fn_decl() .expect("coroutine lowered from async fn should be in fn") @@ -706,7 +706,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { hir::CoroutineSource::Closure => " of gen closure", hir::CoroutineSource::Fn => { let parent_item = - hir.get_by_def_id(hir.get_parent_item(mir_hir_id).def_id); + tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); let output = &parent_item .fn_decl() .expect("coroutine lowered from gen fn should be in fn") @@ -721,7 +721,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { hir::CoroutineSource::Closure => " of async gen closure", hir::CoroutineSource::Fn => { let parent_item = - hir.get_by_def_id(hir.get_parent_item(mir_hir_id).def_id); + tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); let output = &parent_item .fn_decl() .expect("coroutine lowered from async gen fn should be in fn") @@ -841,7 +841,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { let type_name = self.infcx.extract_inference_diagnostics_data(yield_ty.into(), Some(highlight)).name; - let yield_span = match tcx.hir().get(self.mir_hir_id()) { + let yield_span = match tcx.hir_node(self.mir_hir_id()) { hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, .. }), .. diff --git a/compiler/rustc_codegen_cranelift/build_system/tests.rs b/compiler/rustc_codegen_cranelift/build_system/tests.rs index 3309a0a6abd..1a38d5967f4 100644 --- a/compiler/rustc_codegen_cranelift/build_system/tests.rs +++ b/compiler/rustc_codegen_cranelift/build_system/tests.rs @@ -75,11 +75,6 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "example/arbitrary_self_types_pointers_and_wrappers.rs", &[], ), - TestCase::build_bin_and_run( - "aot.issue_91827_extern_types", - "example/issue-91827-extern-types.rs", - &[], - ), TestCase::build_lib("build.alloc_system", "example/alloc_system.rs", "lib"), TestCase::build_bin_and_run("aot.alloc_example", "example/alloc_example.rs", &[]), TestCase::jit_bin("jit.std_example", "example/std_example.rs", ""), diff --git a/compiler/rustc_codegen_cranelift/example/issue-91827-extern-types.rs b/compiler/rustc_codegen_cranelift/example/issue-91827-extern-types.rs deleted file mode 100644 index 6f39c5edcad..00000000000 --- a/compiler/rustc_codegen_cranelift/example/issue-91827-extern-types.rs +++ /dev/null @@ -1,55 +0,0 @@ -// Copied from rustc ui test suite - -// run-pass -// -// Test that we can handle unsized types with an extern type tail part. -// Regression test for issue #91827. - -#![feature(extern_types)] - -use std::ptr::addr_of; - -extern "C" { - type Opaque; -} - -unsafe impl Sync for Opaque {} - -#[repr(C)] -pub struct List<T> { - len: usize, - data: [T; 0], - tail: Opaque, -} - -#[repr(C)] -pub struct ListImpl<T, const N: usize> { - len: usize, - data: [T; N], -} - -impl<T> List<T> { - const fn as_slice(&self) -> &[T] { - unsafe { std::slice::from_raw_parts(self.data.as_ptr(), self.len) } - } -} - -impl<T, const N: usize> ListImpl<T, N> { - const fn as_list(&self) -> &List<T> { - unsafe { std::mem::transmute(self) } - } -} - -pub static A: ListImpl<u128, 3> = ListImpl { len: 3, data: [5, 6, 7] }; -pub static A_REF: &'static List<u128> = A.as_list(); -pub static A_TAIL_OFFSET: isize = tail_offset(A.as_list()); - -const fn tail_offset<T>(list: &List<T>) -> isize { - unsafe { (addr_of!(list.tail) as *const u8).offset_from(list as *const List<T> as *const u8) } -} - -fn main() { - assert_eq!(A_REF.as_slice(), &[5, 6, 7]); - // Check that interpreter and code generation agree about the position of the tail field. - assert_eq!(A_TAIL_OFFSET, tail_offset(A_REF)); -} diff --git a/compiler/rustc_codegen_llvm/src/back/lto.rs b/compiler/rustc_codegen_llvm/src/back/lto.rs index abc33a04598..97444f1a5bd 100644 --- a/compiler/rustc_codegen_llvm/src/back/lto.rs +++ b/compiler/rustc_codegen_llvm/src/back/lto.rs @@ -816,6 +816,9 @@ impl ThinLTOKeysMap { use std::io::Write; let file = File::create(path)?; let mut writer = io::BufWriter::new(file); + // The entries are loaded back into a hash map in `load_from_file()`, so + // the order in which we write them to file here does not matter. + #[allow(rustc::potential_query_instability)] for (module, key) in &self.keys { writeln!(writer, "{module} {key}")?; } diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs index 51df14df644..33bfde03a31 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs @@ -58,6 +58,11 @@ pub fn finalize(cx: &CodegenCx<'_, '_>) { return; } + // The entries of the map are only used to get a list of all files with + // coverage info. In the end the list of files is passed into + // `GlobalFileTable::new()` which internally do `.sort_unstable_by()`, so + // the iteration order here does not matter. + #[allow(rustc::potential_query_instability)] let function_coverage_entries = function_coverage_map .into_iter() .map(|(instance, function_coverage)| (instance, function_coverage.into_finished())) diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs index 98563673c30..acd5a1ff5c6 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs @@ -17,6 +17,7 @@ use crate::debuginfo::utils::FatPtrKind; use crate::llvm; use crate::llvm::debuginfo::{ DIDescriptor, DIFile, DIFlags, DILexicalBlock, DIScope, DIType, DebugEmissionKind, + DebugNameTableKind, }; use crate::value::Value; @@ -38,6 +39,7 @@ use rustc_span::FileName; use rustc_span::{FileNameDisplayPreference, SourceFile}; use rustc_symbol_mangling::typeid_for_trait_ref; use rustc_target::abi::{Align, Size}; +use rustc_target::spec::DebuginfoKind; use smallvec::smallvec; use libc::{c_char, c_longlong, c_uint}; @@ -878,6 +880,17 @@ pub fn build_compile_unit_di_node<'ll, 'tcx>( let split_name = split_name.to_str().unwrap(); let kind = DebugEmissionKind::from_generic(tcx.sess.opts.debuginfo); + let dwarf_version = + tcx.sess.opts.unstable_opts.dwarf_version.unwrap_or(tcx.sess.target.default_dwarf_version); + let is_dwarf_kind = + matches!(tcx.sess.target.debuginfo_kind, DebuginfoKind::Dwarf | DebuginfoKind::DwarfDsym); + // Don't emit `.debug_pubnames` and `.debug_pubtypes` on DWARFv4 or lower. + let debug_name_table_kind = if is_dwarf_kind && dwarf_version <= 4 { + DebugNameTableKind::None + } else { + DebugNameTableKind::Default + }; + unsafe { let compile_unit_file = llvm::LLVMRustDIBuilderCreateFile( debug_context.builder, @@ -907,6 +920,7 @@ pub fn build_compile_unit_di_node<'ll, 'tcx>( kind, 0, tcx.sess.opts.unstable_opts.split_dwarf_inlining, + debug_name_table_kind, ); if tcx.sess.opts.unstable_opts.profile { diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs index 23b424f25ba..58e68a64907 100644 --- a/compiler/rustc_codegen_llvm/src/intrinsic.rs +++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs @@ -1568,7 +1568,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>( // Alignment of T, must be a constant integer value: let alignment_ty = bx.type_i32(); - let alignment = bx.const_i32(bx.align_of(values_ty).bytes() as i32); + let alignment = bx.const_i32(bx.align_of(values_elem).bytes() as i32); // Truncate the mask vector to a vector of i1s: let (mask, mask_ty) = { diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs index 33b19ab362a..116108ae5a9 100644 --- a/compiler/rustc_codegen_llvm/src/lib.rs +++ b/compiler/rustc_codegen_llvm/src/lib.rs @@ -17,7 +17,6 @@ #![feature(never_type)] #![feature(impl_trait_in_assoc_type)] #![recursion_limit = "256"] -#![allow(rustc::potential_query_instability)] #![deny(rustc::untranslatable_diagnostic)] #![deny(rustc::diagnostic_outside_of_impl)] diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 432cfe203c8..81702baa8c0 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -5,7 +5,7 @@ use super::debuginfo::{ DIArray, DIBasicType, DIBuilder, DICompositeType, DIDerivedType, DIDescriptor, DIEnumerator, DIFile, DIFlags, DIGlobalVariableExpression, DILexicalBlock, DILocation, DINameSpace, DISPFlags, DIScope, DISubprogram, DISubrange, DITemplateTypeParameter, DIType, DIVariable, - DebugEmissionKind, + DebugEmissionKind, DebugNameTableKind, }; use libc::{c_char, c_int, c_uint, size_t}; @@ -794,6 +794,15 @@ pub mod debuginfo { } } } + + /// LLVMRustDebugNameTableKind + #[derive(Clone, Copy)] + #[repr(C)] + pub enum DebugNameTableKind { + Default, + Gnu, + None, + } } use bitflags::bitflags; @@ -1812,6 +1821,7 @@ extern "C" { kind: DebugEmissionKind, DWOId: u64, SplitDebugInlining: bool, + DebugNameTableKind: DebugNameTableKind, ) -> &'a DIDescriptor; pub fn LLVMRustDIBuilderCreateFile<'a>( diff --git a/compiler/rustc_codegen_ssa/src/lib.rs b/compiler/rustc_codegen_ssa/src/lib.rs index cd5eb77e06e..9b60f0844a0 100644 --- a/compiler/rustc_codegen_ssa/src/lib.rs +++ b/compiler/rustc_codegen_ssa/src/lib.rs @@ -51,10 +51,10 @@ pub mod codegen_attrs; pub mod common; pub mod debuginfo; pub mod errors; -pub mod glue; pub mod meth; pub mod mir; pub mod mono_item; +pub mod size_of_val; pub mod target_features; pub mod traits; diff --git a/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs b/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs index 136d06d561a..a5bffc33d39 100644 --- a/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs +++ b/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs @@ -4,8 +4,8 @@ use super::FunctionCx; use crate::common::IntPredicate; use crate::errors; use crate::errors::InvalidMonomorphization; -use crate::glue; use crate::meth; +use crate::size_of_val; use crate::traits::*; use crate::MemFlags; @@ -88,21 +88,17 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { sym::va_end => bx.va_end(args[0].immediate()), sym::size_of_val => { let tp_ty = fn_args.type_at(0); - if let OperandValue::Pair(_, meta) = args[0].val { - let (llsize, _) = glue::size_and_align_of_dst(bx, tp_ty, Some(meta)); - llsize - } else { - bx.const_usize(bx.layout_of(tp_ty).size.bytes()) - } + let meta = + if let OperandValue::Pair(_, meta) = args[0].val { Some(meta) } else { None }; + let (llsize, _) = size_of_val::size_and_align_of_dst(bx, tp_ty, meta); + llsize } sym::min_align_of_val => { let tp_ty = fn_args.type_at(0); - if let OperandValue::Pair(_, meta) = args[0].val { - let (_, llalign) = glue::size_and_align_of_dst(bx, tp_ty, Some(meta)); - llalign - } else { - bx.const_usize(bx.layout_of(tp_ty).align.abi.bytes()) - } + let meta = + if let OperandValue::Pair(_, meta) = args[0].val { Some(meta) } else { None }; + let (_, llalign) = size_of_val::size_and_align_of_dst(bx, tp_ty, meta); + llalign } sym::vtable_size | sym::vtable_align => { let vtable = args[0].immediate(); diff --git a/compiler/rustc_codegen_ssa/src/mir/operand.rs b/compiler/rustc_codegen_ssa/src/mir/operand.rs index feee3ac03d0..e8c58f6b6f8 100644 --- a/compiler/rustc_codegen_ssa/src/mir/operand.rs +++ b/compiler/rustc_codegen_ssa/src/mir/operand.rs @@ -2,7 +2,7 @@ use super::place::PlaceRef; use super::{FunctionCx, LocalRef}; use crate::base; -use crate::glue; +use crate::size_of_val; use crate::traits::*; use crate::MemFlags; @@ -466,13 +466,13 @@ impl<'a, 'tcx, V: CodegenObject> OperandValue<V> { .ty; let OperandValue::Ref(llptr, Some(llextra), _) = self else { - bug!("store_unsized called with a sized value") + bug!("store_unsized called with a sized value (or with an extern type)") }; // Allocate an appropriate region on the stack, and copy the value into it. Since alloca // doesn't support dynamic alignment, we allocate an extra align - 1 bytes, and align the // pointer manually. - let (size, align) = glue::size_and_align_of_dst(bx, unsized_ty, Some(llextra)); + let (size, align) = size_of_val::size_and_align_of_dst(bx, unsized_ty, Some(llextra)); let one = bx.const_usize(1); let align_minus_1 = bx.sub(align, one); let size_extra = bx.add(size, align_minus_1); diff --git a/compiler/rustc_codegen_ssa/src/mir/place.rs b/compiler/rustc_codegen_ssa/src/mir/place.rs index 83425dee1a8..c0bb3ac5661 100644 --- a/compiler/rustc_codegen_ssa/src/mir/place.rs +++ b/compiler/rustc_codegen_ssa/src/mir/place.rs @@ -2,7 +2,7 @@ use super::operand::OperandValue; use super::{FunctionCx, LocalRef}; use crate::common::IntPredicate; -use crate::glue; +use crate::size_of_val; use crate::traits::*; use rustc_middle::mir; @@ -99,6 +99,8 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { let offset = self.layout.fields.offset(ix); let effective_field_align = self.align.restrict_for_offset(offset); + // `simple` is called when we don't need to adjust the offset to + // the dynamic alignment of the field. let mut simple = || { let llval = match self.layout.abi { _ if offset.bytes() == 0 => { @@ -141,28 +143,21 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { }; // Simple cases, which don't need DST adjustment: - // * no metadata available - just log the case - // * known alignment - sized types, `[T]`, `str` or a foreign type + // * known alignment - sized types, `[T]`, `str` + // * offset 0 -- rounding up to alignment cannot change the offset // Note that looking at `field.align` is incorrect since that is not necessarily equal // to the dynamic alignment of the type. match field.ty.kind() { - _ if self.llextra.is_none() => { - debug!( - "unsized field `{}`, of `{:?}` has no metadata for adjustment", - ix, self.llval - ); - return simple(); - } _ if field.is_sized() => return simple(), - ty::Slice(..) | ty::Str | ty::Foreign(..) => return simple(), + ty::Slice(..) | ty::Str => return simple(), + _ if offset.bytes() == 0 => return simple(), _ => {} } // We need to get the pointer manually now. // We do this by casting to a `*i8`, then offsetting it by the appropriate amount. // We do this instead of, say, simply adjusting the pointer from the result of a GEP - // because the field may have an arbitrary alignment in the LLVM representation - // anyway. + // because the field may have an arbitrary alignment in the LLVM representation. // // To demonstrate: // @@ -179,7 +174,7 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { let unaligned_offset = bx.cx().const_usize(offset.bytes()); // Get the alignment of the field - let (_, mut unsized_align) = glue::size_and_align_of_dst(bx, field.ty, meta); + let (_, mut unsized_align) = size_of_val::size_and_align_of_dst(bx, field.ty, meta); // For packed types, we need to cap alignment. if let ty::Adt(def, _) = self.layout.ty.kind() diff --git a/compiler/rustc_codegen_ssa/src/glue.rs b/compiler/rustc_codegen_ssa/src/size_of_val.rs index c34f1dbf856..b8a4949d59f 100644 --- a/compiler/rustc_codegen_ssa/src/glue.rs +++ b/compiler/rustc_codegen_ssa/src/size_of_val.rs @@ -1,10 +1,11 @@ -//! -// -// Code relating to drop glue. +//! Computing the size and alignment of a value. +use crate::common; use crate::common::IntPredicate; use crate::meth; use crate::traits::*; +use rustc_hir::LangItem; +use rustc_middle::ty::print::{with_no_trimmed_paths, with_no_visible_paths}; use rustc_middle::ty::{self, Ty}; use rustc_target::abi::WrappingRange; @@ -14,7 +15,7 @@ pub fn size_and_align_of_dst<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( info: Option<Bx::Value>, ) -> (Bx::Value, Bx::Value) { let layout = bx.layout_of(t); - debug!("size_and_align_of_dst(ty={}, info={:?}): layout: {:?}", t, info, layout); + trace!("size_and_align_of_dst(ty={}, info={:?}): layout: {:?}", t, info, layout); if layout.is_sized() { let size = bx.const_usize(layout.size.bytes()); let align = bx.const_usize(layout.align.abi.bytes()); @@ -51,7 +52,31 @@ pub fn size_and_align_of_dst<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( bx.const_usize(unit.align.abi.bytes()), ) } - _ => { + ty::Foreign(_) => { + // `extern` type. We cannot compute the size, so panic. + let msg_str = with_no_visible_paths!({ + with_no_trimmed_paths!({ + format!("attempted to compute the size or alignment of extern type `{t}`") + }) + }); + let msg = bx.const_str(&msg_str); + + // Obtain the panic entry point. + let (fn_abi, llfn) = common::build_langcall(bx, None, LangItem::PanicNounwind); + + // Generate the call. + // Cannot use `do_call` since we don't have a MIR terminator so we can't create a `TerminationCodegenHelper`. + // (But we are in good company, this code is duplicated plenty of times.) + let fn_ty = bx.fn_decl_backend_type(fn_abi); + + bx.call(fn_ty, /* fn_attrs */ None, Some(fn_abi), llfn, &[msg.0, msg.1], None); + + // This function does not return so we can now return whatever we want. + let size = bx.const_usize(layout.size.bytes()); + let align = bx.const_usize(layout.align.abi.bytes()); + (size, align) + } + ty::Adt(..) | ty::Tuple(..) => { // First get the size of all statically known fields. // Don't use size_of because it also rounds up to alignment, which we // want to avoid, as the unsized field's alignment could be smaller. @@ -122,5 +147,6 @@ pub fn size_and_align_of_dst<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( (size, align) } + _ => bug!("size_and_align_of_dst: {t} not supported"), } } diff --git a/compiler/rustc_const_eval/src/const_eval/fn_queries.rs b/compiler/rustc_const_eval/src/const_eval/fn_queries.rs index 9e992637f46..dbc29e607ef 100644 --- a/compiler/rustc_const_eval/src/const_eval/fn_queries.rs +++ b/compiler/rustc_const_eval/src/const_eval/fn_queries.rs @@ -33,7 +33,7 @@ pub fn is_parent_const_impl_raw(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool { /// return if it has a `const` modifier. If it is an intrinsic, report whether said intrinsic /// has a `rustc_const_{un,}stable` attribute. Otherwise, return `Constness::NotConst`. fn constness(tcx: TyCtxt<'_>, def_id: LocalDefId) -> hir::Constness { - let node = tcx.hir().get_by_def_id(def_id); + let node = tcx.hir_node_by_def_id(def_id); match node { hir::Node::Ctor(_) diff --git a/compiler/rustc_const_eval/src/interpret/projection.rs b/compiler/rustc_const_eval/src/interpret/projection.rs index 4d9e296d544..0f3b6b25c61 100644 --- a/compiler/rustc_const_eval/src/interpret/projection.rs +++ b/compiler/rustc_const_eval/src/interpret/projection.rs @@ -174,12 +174,15 @@ where }; (base_meta, offset.align_to(align)) } - None => { - // For unsized types with an extern type tail we perform no adjustments. - // NOTE: keep this in sync with `PlaceRef::project_field` in the codegen backend. - assert!(matches!(base_meta, MemPlaceMeta::None)); + None if offset == Size::ZERO => { + // If the offset is 0, then rounding it up to alignment wouldn't change anything, + // so we can do this even for types where we cannot determine the alignment. (base_meta, offset) } + None => { + // We don't know the alignment of this field, so we cannot adjust. + throw_unsup_format!("`extern type` does not have a known offset") + } } } else { // base_meta could be present; we might be accessing a sized field of an unsized diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 20f251d5c91..07500f74477 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -227,7 +227,7 @@ impl<'rt, 'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> ValidityVisitor<'rt, 'mir, ' // Sometimes the index is beyond the number of upvars (seen // for a coroutine). let var_hir_id = captured_place.get_root_variable(); - let node = self.ecx.tcx.hir().get(var_hir_id); + let node = self.ecx.tcx.hir_node(var_hir_id); if let hir::Node::Pat(pat) = node { if let hir::PatKind::Binding(_, _, ident, _) = pat.kind { name = Some(ident.name); diff --git a/compiler/rustc_const_eval/src/interpret/visitor.rs b/compiler/rustc_const_eval/src/interpret/visitor.rs index 5c5a6e8db57..de0590a4b14 100644 --- a/compiler/rustc_const_eval/src/interpret/visitor.rs +++ b/compiler/rustc_const_eval/src/interpret/visitor.rs @@ -21,7 +21,7 @@ pub trait ValueVisitor<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>>: Sized { /// `read_discriminant` can be hooked for better error messages. #[inline(always)] fn read_discriminant(&mut self, v: &Self::V) -> InterpResult<'tcx, VariantIdx> { - Ok(self.ecx().read_discriminant(&v.to_op(self.ecx())?)?) + self.ecx().read_discriminant(&v.to_op(self.ecx())?) } /// This function provides the chance to reorder the order in which fields are visited for diff --git a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs index 5bf9911269c..2de6362b9fe 100644 --- a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs +++ b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs @@ -119,8 +119,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> { match self_ty.kind() { Param(param_ty) => { debug!(?param_ty); - let caller_hir_id = tcx.local_def_id_to_hir_id(caller); - if let Some(generics) = tcx.hir().get(caller_hir_id).generics() { + if let Some(generics) = tcx.hir_node_by_def_id(caller).generics() { let constraint = with_no_trimmed_paths!(format!( "~const {}", trait_ref.print_only_trait_path() diff --git a/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs b/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs index cb7f7d318dc..cafa91c8b8b 100644 --- a/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs +++ b/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs @@ -81,6 +81,7 @@ /// E::A, /// } /// ``` +#[cfg(bootstrap)] #[macro_export] macro_rules! impl_tag { ( @@ -140,5 +141,148 @@ macro_rules! impl_tag { }; } +/// Implements [`Tag`] for a given type. +/// +/// You can use `impl_tag` on structs and enums. +/// You need to specify the type and all its possible values, +/// which can only be paths with optional fields. +/// +/// [`Tag`]: crate::tagged_ptr::Tag +/// +/// # Examples +/// +/// Basic usage: +/// +/// ``` +/// #![feature(macro_metavar_expr)] +/// use rustc_data_structures::{impl_tag, tagged_ptr::Tag}; +/// +/// #[derive(Copy, Clone, PartialEq, Debug)] +/// enum SomeTag { +/// A, +/// B, +/// X { v: bool }, +/// Y(bool, bool), +/// } +/// +/// impl_tag! { +/// // The type for which the `Tag` will be implemented +/// impl Tag for SomeTag; +/// // You need to specify all possible tag values: +/// SomeTag::A, // 0 +/// SomeTag::B, // 1 +/// // For variants with fields, you need to specify the fields: +/// SomeTag::X { v: true }, // 2 +/// SomeTag::X { v: false }, // 3 +/// // For tuple variants use named syntax: +/// SomeTag::Y { 0: true, 1: true }, // 4 +/// SomeTag::Y { 0: false, 1: true }, // 5 +/// SomeTag::Y { 0: true, 1: false }, // 6 +/// SomeTag::Y { 0: false, 1: false }, // 7 +/// } +/// +/// // Tag values are assigned in order: +/// assert_eq!(SomeTag::A.into_usize(), 0); +/// assert_eq!(SomeTag::X { v: false }.into_usize(), 3); +/// assert_eq!(SomeTag::Y(false, true).into_usize(), 5); +/// +/// assert_eq!(unsafe { SomeTag::from_usize(1) }, SomeTag::B); +/// assert_eq!(unsafe { SomeTag::from_usize(2) }, SomeTag::X { v: true }); +/// assert_eq!(unsafe { SomeTag::from_usize(7) }, SomeTag::Y(false, false)); +/// ``` +/// +/// Structs are supported: +/// +/// ``` +/// #![feature(macro_metavar_expr)] +/// # use rustc_data_structures::impl_tag; +/// #[derive(Copy, Clone)] +/// struct Flags { a: bool, b: bool } +/// +/// impl_tag! { +/// impl Tag for Flags; +/// Flags { a: true, b: true }, +/// Flags { a: false, b: true }, +/// Flags { a: true, b: false }, +/// Flags { a: false, b: false }, +/// } +/// ``` +/// +/// Not specifying all values results in a compile error: +/// +/// ```compile_fail,E0004 +/// #![feature(macro_metavar_expr)] +/// # use rustc_data_structures::impl_tag; +/// #[derive(Copy, Clone)] +/// enum E { +/// A, +/// B, +/// } +/// +/// impl_tag! { +/// impl Tag for E; +/// E::A, +/// } +/// ``` +#[cfg(not(bootstrap))] +#[macro_export] +macro_rules! impl_tag { + ( + impl Tag for $Self:ty; + $( + $($path:ident)::* $( { $( $fields:tt )* })?, + )* + ) => { + // Safety: + // `bits_for_tags` is called on the same `${index()}`-es as + // `into_usize` returns, thus `BITS` constant is correct. + unsafe impl $crate::tagged_ptr::Tag for $Self { + const BITS: u32 = $crate::tagged_ptr::bits_for_tags(&[ + $( + ${index()}, + $( ${ignore($path)} )* + )* + ]); + + #[inline] + fn into_usize(self) -> usize { + // This forbids use of repeating patterns (`Enum::V`&`Enum::V`, etc) + // (or at least it should, see <https://github.com/rust-lang/rust/issues/110613>) + #[forbid(unreachable_patterns)] + match self { + // `match` is doing heavy lifting here, by requiring exhaustiveness + $( + $($path)::* $( { $( $fields )* } )? => ${index()}, + )* + } + } + + #[inline] + unsafe fn from_usize(tag: usize) -> Self { + match tag { + $( + ${index()} => $($path)::* $( { $( $fields )* } )?, + )* + + // Safety: + // `into_usize` only returns `${index()}` of the same + // repetition as we are filtering above, thus if this is + // reached, the safety contract of this function was + // already breached. + _ => unsafe { + debug_assert!( + false, + "invalid tag: {tag}\ + (this is a bug in the caller of `from_usize`)" + ); + std::hint::unreachable_unchecked() + }, + } + } + + } + }; +} + #[cfg(test)] mod tests; diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs index 8b7a4dbff9d..e49db64536f 100644 --- a/compiler/rustc_driver_impl/src/lib.rs +++ b/compiler/rustc_driver_impl/src/lib.rs @@ -587,10 +587,8 @@ fn show_md_content_with_pager(content: &str, color: ColorConfig) { let mut print_formatted = if pager_name == "less" { cmd.arg("-r"); true - } else if ["bat", "catbat", "delta"].iter().any(|v| *v == pager_name) { - true } else { - false + ["bat", "catbat", "delta"].iter().any(|v| *v == pager_name) }; if color == ColorConfig::Never { diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs index 47d4b802c0f..89caf8aa231 100644 --- a/compiler/rustc_expand/src/expand.rs +++ b/compiler/rustc_expand/src/expand.rs @@ -41,6 +41,7 @@ use std::path::PathBuf; use std::rc::Rc; use std::{iter, mem}; +#[cfg(bootstrap)] macro_rules! ast_fragments { ( $($Kind:ident($AstTy:ty) { @@ -165,6 +166,131 @@ macro_rules! ast_fragments { } } +#[cfg(not(bootstrap))] +macro_rules! ast_fragments { + ( + $($Kind:ident($AstTy:ty) { + $kind_name:expr; + $(one fn $mut_visit_ast:ident; fn $visit_ast:ident;)? + $(many fn $flat_map_ast_elt:ident; fn $visit_ast_elt:ident($($args:tt)*);)? + fn $make_ast:ident; + })* + ) => { + /// A fragment of AST that can be produced by a single macro expansion. + /// Can also serve as an input and intermediate result for macro expansion operations. + pub enum AstFragment { + OptExpr(Option<P<ast::Expr>>), + MethodReceiverExpr(P<ast::Expr>), + $($Kind($AstTy),)* + } + + /// "Discriminant" of an AST fragment. + #[derive(Copy, Clone, PartialEq, Eq)] + pub enum AstFragmentKind { + OptExpr, + MethodReceiverExpr, + $($Kind,)* + } + + impl AstFragmentKind { + pub fn name(self) -> &'static str { + match self { + AstFragmentKind::OptExpr => "expression", + AstFragmentKind::MethodReceiverExpr => "expression", + $(AstFragmentKind::$Kind => $kind_name,)* + } + } + + fn make_from<'a>(self, result: Box<dyn MacResult + 'a>) -> Option<AstFragment> { + match self { + AstFragmentKind::OptExpr => + result.make_expr().map(Some).map(AstFragment::OptExpr), + AstFragmentKind::MethodReceiverExpr => + result.make_expr().map(AstFragment::MethodReceiverExpr), + $(AstFragmentKind::$Kind => result.$make_ast().map(AstFragment::$Kind),)* + } + } + } + + impl AstFragment { + pub fn add_placeholders(&mut self, placeholders: &[NodeId]) { + if placeholders.is_empty() { + return; + } + match self { + $($(AstFragment::$Kind(ast) => ast.extend(placeholders.iter().flat_map(|id| { + ${ignore($flat_map_ast_elt)} + placeholder(AstFragmentKind::$Kind, *id, None).$make_ast() + })),)?)* + _ => panic!("unexpected AST fragment kind") + } + } + + pub fn make_opt_expr(self) -> Option<P<ast::Expr>> { + match self { + AstFragment::OptExpr(expr) => expr, + _ => panic!("AstFragment::make_* called on the wrong kind of fragment"), + } + } + + pub fn make_method_receiver_expr(self) -> P<ast::Expr> { + match self { + AstFragment::MethodReceiverExpr(expr) => expr, + _ => panic!("AstFragment::make_* called on the wrong kind of fragment"), + } + } + + $(pub fn $make_ast(self) -> $AstTy { + match self { + AstFragment::$Kind(ast) => ast, + _ => panic!("AstFragment::make_* called on the wrong kind of fragment"), + } + })* + + fn make_ast<T: InvocationCollectorNode>(self) -> T::OutputTy { + T::fragment_to_output(self) + } + + pub fn mut_visit_with<F: MutVisitor>(&mut self, vis: &mut F) { + match self { + AstFragment::OptExpr(opt_expr) => { + visit_clobber(opt_expr, |opt_expr| { + if let Some(expr) = opt_expr { + vis.filter_map_expr(expr) + } else { + None + } + }); + } + AstFragment::MethodReceiverExpr(expr) => vis.visit_method_receiver_expr(expr), + $($(AstFragment::$Kind(ast) => vis.$mut_visit_ast(ast),)?)* + $($(AstFragment::$Kind(ast) => + ast.flat_map_in_place(|ast| vis.$flat_map_ast_elt(ast)),)?)* + } + } + + pub fn visit_with<'a, V: Visitor<'a>>(&'a self, visitor: &mut V) { + match self { + AstFragment::OptExpr(Some(expr)) => visitor.visit_expr(expr), + AstFragment::OptExpr(None) => {} + AstFragment::MethodReceiverExpr(expr) => visitor.visit_method_receiver_expr(expr), + $($(AstFragment::$Kind(ast) => visitor.$visit_ast(ast),)?)* + $($(AstFragment::$Kind(ast) => for ast_elt in &ast[..] { + visitor.$visit_ast_elt(ast_elt, $($args)*); + })?)* + } + } + } + + impl<'a> MacResult for crate::mbe::macro_rules::ParserAnyMacro<'a> { + $(fn $make_ast(self: Box<crate::mbe::macro_rules::ParserAnyMacro<'a>>) + -> Option<$AstTy> { + Some(self.make(AstFragmentKind::$Kind).$make_ast()) + })* + } + } +} + ast_fragments! { Expr(P<ast::Expr>) { "expression"; one fn visit_expr; fn visit_expr; fn make_expr; } Pat(P<ast::Pat>) { "pattern"; one fn visit_pat; fn visit_pat; fn make_pat; } diff --git a/compiler/rustc_expand/src/mbe/metavar_expr.rs b/compiler/rustc_expand/src/mbe/metavar_expr.rs index c29edc3dc9f..4b8c6feb93e 100644 --- a/compiler/rustc_expand/src/mbe/metavar_expr.rs +++ b/compiler/rustc_expand/src/mbe/metavar_expr.rs @@ -10,9 +10,8 @@ use rustc_span::Span; /// A meta-variable expression, for expansions based on properties of meta-variables. #[derive(Debug, Clone, PartialEq, Encodable, Decodable)] pub(crate) enum MetaVarExpr { - /// The number of repetitions of an identifier, optionally limited to a number - /// of outer-most repetition depths. If the depth limit is `None` then the depth is unlimited. - Count(Ident, Option<usize>), + /// The number of repetitions of an identifier. + Count(Ident, usize), /// Ignore a meta-variable for repetition without expansion. Ignore(Ident), @@ -43,7 +42,10 @@ impl MetaVarExpr { let mut iter = args.trees(); let rslt = match ident.as_str() { "count" => parse_count(&mut iter, sess, ident.span)?, - "ignore" => MetaVarExpr::Ignore(parse_ident(&mut iter, sess, ident.span)?), + "ignore" => { + eat_dollar(&mut iter, sess, ident.span)?; + MetaVarExpr::Ignore(parse_ident(&mut iter, sess, ident.span)?) + } "index" => MetaVarExpr::Index(parse_depth(&mut iter, sess, ident.span)?), "length" => MetaVarExpr::Length(parse_depth(&mut iter, sess, ident.span)?), _ => { @@ -92,6 +94,7 @@ fn parse_count<'sess>( sess: &'sess ParseSess, span: Span, ) -> PResult<'sess, MetaVarExpr> { + eat_dollar(iter, sess, span)?; let ident = parse_ident(iter, sess, span)?; let depth = if try_eat_comma(iter) { if iter.look_ahead(0).is_none() { @@ -100,9 +103,9 @@ fn parse_count<'sess>( "`count` followed by a comma must have an associated index indicating its depth", )); } - Some(parse_depth(iter, sess, span)?) + parse_depth(iter, sess, span)? } else { - None + 0 }; Ok(MetaVarExpr::Count(ident, depth)) } @@ -166,3 +169,20 @@ fn try_eat_comma(iter: &mut RefTokenTreeCursor<'_>) -> bool { } false } + +/// Expects that the next item is a dollar sign. +fn eat_dollar<'sess>( + iter: &mut RefTokenTreeCursor<'_>, + sess: &'sess ParseSess, + span: Span, +) -> PResult<'sess, ()> { + if let Some(TokenTree::Token(token::Token { kind: token::Dollar, .. }, _)) = iter.look_ahead(0) + { + let _ = iter.next(); + return Ok(()); + } + Err(sess.span_diagnostic.struct_span_err( + span, + "meta-variables within meta-variable expressions must be referenced using a dollar sign", + )) +} diff --git a/compiler/rustc_expand/src/mbe/transcribe.rs b/compiler/rustc_expand/src/mbe/transcribe.rs index 18707cebcd5..80fd82e0302 100644 --- a/compiler/rustc_expand/src/mbe/transcribe.rs +++ b/compiler/rustc_expand/src/mbe/transcribe.rs @@ -440,7 +440,7 @@ fn lockstep_iter_size( /// declared inside a single repetition and the index `1` implies two nested repetitions. fn count_repetitions<'a>( cx: &ExtCtxt<'a>, - depth_opt: Option<usize>, + depth_user: usize, mut matched: &NamedMatch, repeats: &[(usize, usize)], sp: &DelimSpan, @@ -449,37 +449,45 @@ fn count_repetitions<'a>( // (or at the top-level of `matched` if no depth is given). fn count<'a>( cx: &ExtCtxt<'a>, - declared_lhs_depth: usize, - depth_opt: Option<usize>, + depth_curr: usize, + depth_max: usize, matched: &NamedMatch, sp: &DelimSpan, ) -> PResult<'a, usize> { match matched { - MatchedTokenTree(_) | MatchedNonterminal(_) => { - if declared_lhs_depth == 0 { - return Err(cx.create_err(CountRepetitionMisplaced { span: sp.entire() })); - } - match depth_opt { - None => Ok(1), - Some(_) => Err(out_of_bounds_err(cx, declared_lhs_depth, sp.entire(), "count")), - } - } + MatchedTokenTree(_) | MatchedNonterminal(_) => Ok(1), MatchedSeq(named_matches) => { - let new_declared_lhs_depth = declared_lhs_depth + 1; - match depth_opt { - None => named_matches - .iter() - .map(|elem| count(cx, new_declared_lhs_depth, None, elem, sp)) - .sum(), - Some(0) => Ok(named_matches.len()), - Some(depth) => named_matches + if depth_curr == depth_max { + Ok(named_matches.len()) + } else { + named_matches .iter() - .map(|elem| count(cx, new_declared_lhs_depth, Some(depth - 1), elem, sp)) - .sum(), + .map(|elem| count(cx, depth_curr + 1, depth_max, elem, sp)) + .sum() } } } } + + /// Maximum depth + fn depth(counter: usize, matched: &NamedMatch) -> usize { + match matched { + MatchedTokenTree(_) | MatchedNonterminal(_) => counter, + MatchedSeq(named_matches) => { + let rslt = counter + 1; + if let Some(elem) = named_matches.first() { depth(rslt, elem) } else { rslt } + } + } + } + + let depth_max = depth(0, matched) + .checked_sub(1) + .and_then(|el| el.checked_sub(repeats.len())) + .unwrap_or_default(); + if depth_user > depth_max { + return Err(out_of_bounds_err(cx, depth_max + 1, sp.entire(), "count")); + } + // `repeats` records all of the nested levels at which we are currently // matching meta-variables. The meta-var-expr `count($x)` only counts // matches that occur in this "subtree" of the `NamedMatch` where we @@ -491,7 +499,12 @@ fn count_repetitions<'a>( matched = &ads[idx]; } } - count(cx, 0, depth_opt, matched, sp) + + if let MatchedTokenTree(_) | MatchedNonterminal(_) = matched { + return Err(cx.create_err(CountRepetitionMisplaced { span: sp.entire() })); + } + + count(cx, depth_user, depth_max, matched, sp) } /// Returns a `NamedMatch` item declared on the LHS given an arbitrary [Ident] @@ -523,7 +536,7 @@ fn out_of_bounds_err<'a>( ) } else { format!( - "depth parameter on meta-variable expression `{ty}` \ + "depth parameter of meta-variable expression `{ty}` \ must be less than {max}" ) }; @@ -545,9 +558,9 @@ fn transcribe_metavar_expr<'a>( span }; match *expr { - MetaVarExpr::Count(original_ident, depth_opt) => { + MetaVarExpr::Count(original_ident, depth) => { let matched = matched_from_ident(cx, original_ident, interp)?; - let count = count_repetitions(cx, depth_opt, matched, repeats, sp)?; + let count = count_repetitions(cx, depth, matched, repeats, sp)?; let tt = TokenTree::token_alone( TokenKind::lit(token::Integer, sym::integer(count), None), visited_span(), diff --git a/compiler/rustc_hir_analysis/src/astconv/lint.rs b/compiler/rustc_hir_analysis/src/astconv/lint.rs index 14e810d1336..43d4248ab74 100644 --- a/compiler/rustc_hir_analysis/src/astconv/lint.rs +++ b/compiler/rustc_hir_analysis/src/astconv/lint.rs @@ -24,7 +24,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { .. }), .. - }) = tcx.hir().get_by_def_id(parent_id) + }) = tcx.hir_node_by_def_id(parent_id) && self_ty.hir_id == impl_self_ty.hir_id { if !of_trait_ref.trait_def_id().is_some_and(|def_id| def_id.is_local()) { diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs index 20d36a1b069..caae6fa4f06 100644 --- a/compiler/rustc_hir_analysis/src/astconv/mod.rs +++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs @@ -2715,7 +2715,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { let hir = tcx.hir(); let hir::Node::ImplItem(hir::ImplItem { kind: hir::ImplItemKind::Fn(..), ident, .. }) = - hir.get(fn_hir_id) + tcx.hir_node(fn_hir_id) else { return None; }; diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index ec589e2dbbc..e6245e4d0b1 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -479,7 +479,7 @@ fn check_item_type(tcx: TyCtxt<'_>, id: hir::ItemId) { match assoc_item.kind { ty::AssocKind::Fn => { let abi = tcx.fn_sig(assoc_item.def_id).skip_binder().abi(); - fn_maybe_err(tcx, assoc_item.ident(tcx).span, abi); + forbid_intrinsic_abi(tcx, assoc_item.ident(tcx).span, abi); } ty::AssocKind::Type if assoc_item.defaultness(tcx).has_value() => { let trait_args = GenericArgs::identity_for_item(tcx, id.owner_id); @@ -504,7 +504,7 @@ fn check_item_type(tcx: TyCtxt<'_>, id: hir::ItemId) { let origin = tcx.opaque_type_origin(id.owner_id.def_id); if let hir::OpaqueTyOrigin::FnReturn(fn_def_id) | hir::OpaqueTyOrigin::AsyncFn(fn_def_id) = origin - && let hir::Node::TraitItem(trait_item) = tcx.hir().get_by_def_id(fn_def_id) + && let hir::Node::TraitItem(trait_item) = tcx.hir_node_by_def_id(fn_def_id) && let (_, hir::TraitFn::Required(..)) = trait_item.expect_fn() { // Skip opaques from RPIT in traits with no default body. @@ -1173,7 +1173,7 @@ fn detect_discriminant_duplicate<'tcx>(tcx: TyCtxt<'tcx>, adt: ty::AdtDef<'tcx>) ty::VariantDiscr::Explicit(discr_def_id) => { // In the case the discriminant is both a duplicate and overflowed, let the user know if let hir::Node::AnonConst(expr) = - tcx.hir().get_by_def_id(discr_def_id.expect_local()) + tcx.hir_node_by_def_id(discr_def_id.expect_local()) && let hir::ExprKind::Lit(lit) = &tcx.hir().body(expr.body).value.kind && let rustc_ast::LitKind::Int(lit_value, _int_kind) = &lit.node && *lit_value != dis.val diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs index 1412fd1a987..82419d782cd 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs @@ -2181,7 +2181,7 @@ pub(super) fn check_type_bounds<'tcx>( let impl_ty_span = if impl_ty.is_impl_trait_in_trait() { tcx.def_span(impl_ty_def_id) } else { - match tcx.hir().get_by_def_id(impl_ty_def_id) { + match tcx.hir_node_by_def_id(impl_ty_def_id) { hir::Node::TraitItem(hir::TraitItem { kind: hir::TraitItemKind::Type(_, Some(ty)), .. diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs index 86c38480d57..f866543dd0d 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs @@ -278,7 +278,7 @@ fn report_mismatched_rpitit_signature<'tcx>( } let (span, impl_return_span, pre, post) = - match tcx.hir().get_by_def_id(impl_m_def_id.expect_local()).fn_decl().unwrap().output { + match tcx.hir_node_by_def_id(impl_m_def_id.expect_local()).fn_decl().unwrap().output { hir::FnRetTy::DefaultReturn(span) => (tcx.def_span(impl_m_def_id), span, "-> ", " "), hir::FnRetTy::Return(ty) => (ty.span, ty.span, "", ""), }; diff --git a/compiler/rustc_hir_analysis/src/check/entry.rs b/compiler/rustc_hir_analysis/src/check/entry.rs index 947e50d3161..8f194ae88ab 100644 --- a/compiler/rustc_hir_analysis/src/check/entry.rs +++ b/compiler/rustc_hir_analysis/src/check/entry.rs @@ -43,7 +43,7 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) { return None; } let hir_id = tcx.local_def_id_to_hir_id(def_id.expect_local()); - match tcx.hir().find(hir_id) { + match tcx.opt_hir_node(hir_id) { Some(Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, generics, _), .. })) => { generics.params.is_empty().not().then_some(generics.span) } @@ -58,7 +58,7 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) { return None; } let hir_id = tcx.local_def_id_to_hir_id(def_id.expect_local()); - match tcx.hir().find(hir_id) { + match tcx.opt_hir_node(hir_id) { Some(Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, generics, _), .. })) => { Some(generics.where_clause_span) } @@ -80,7 +80,7 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) { return None; } let hir_id = tcx.local_def_id_to_hir_id(def_id.expect_local()); - match tcx.hir().find(hir_id) { + match tcx.opt_hir_node(hir_id) { Some(Node::Item(hir::Item { kind: hir::ItemKind::Fn(fn_sig, _, _), .. })) => { Some(fn_sig.decl.output.span()) } @@ -199,7 +199,7 @@ fn check_start_fn_ty(tcx: TyCtxt<'_>, start_def_id: DefId) { let start_t = tcx.type_of(start_def_id).instantiate_identity(); match start_t.kind() { ty::FnDef(..) => { - if let Some(Node::Item(it)) = tcx.hir().find(start_id) { + if let Some(Node::Item(it)) = tcx.opt_hir_node(start_id) { if let hir::ItemKind::Fn(sig, generics, _) = &it.kind { let mut error = false; if !generics.params.is_empty() { diff --git a/compiler/rustc_hir_analysis/src/check/mod.rs b/compiler/rustc_hir_analysis/src/check/mod.rs index a81a2037214..df17879a967 100644 --- a/compiler/rustc_hir_analysis/src/check/mod.rs +++ b/compiler/rustc_hir_analysis/src/check/mod.rs @@ -130,7 +130,7 @@ fn get_owner_return_paths( ) -> Option<(LocalDefId, ReturnsVisitor<'_>)> { let hir_id = tcx.local_def_id_to_hir_id(def_id); let parent_id = tcx.hir().get_parent_item(hir_id).def_id; - tcx.hir().find_by_def_id(parent_id).and_then(|node| node.body_id()).map(|body_id| { + tcx.opt_hir_node_by_def_id(parent_id).and_then(|node| node.body_id()).map(|body_id| { let body = tcx.hir().body(body_id); let mut visitor = ReturnsVisitor::default(); visitor.visit_body(body); @@ -141,7 +141,7 @@ fn get_owner_return_paths( /// Forbid defining intrinsics in Rust code, /// as they must always be defined by the compiler. // FIXME: Move this to a more appropriate place. -pub fn fn_maybe_err(tcx: TyCtxt<'_>, sp: Span, abi: Abi) { +pub fn forbid_intrinsic_abi(tcx: TyCtxt<'_>, sp: Span, abi: Abi) { if let Abi::RustIntrinsic | Abi::PlatformIntrinsic = abi { tcx.sess.span_err(sp, "intrinsic must be in `extern \"rust-intrinsic\" { ... }` block"); } diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index 3e805ab00b9..1686479bd0e 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -793,7 +793,7 @@ fn could_be_self(trait_def_id: LocalDefId, ty: &hir::Ty<'_>) -> bool { /// When this is done, suggest using `Self` instead. fn check_object_unsafe_self_trait_by_name(tcx: TyCtxt<'_>, item: &hir::TraitItem<'_>) { let (trait_name, trait_def_id) = - match tcx.hir().get_by_def_id(tcx.hir().get_parent_item(item.hir_id()).def_id) { + match tcx.hir_node_by_def_id(tcx.hir().get_parent_item(item.hir_id()).def_id) { hir::Node::Item(item) => match item.kind { hir::ItemKind::Trait(..) => (item.ident, item.owner_id), _ => return, @@ -1019,7 +1019,7 @@ fn check_type_defn<'tcx>( for field in &variant.fields { let field_id = field.did.expect_local(); let hir::FieldDef { ty: hir_ty, .. } = - tcx.hir().get_by_def_id(field_id).expect_field(); + tcx.hir_node_by_def_id(field_id).expect_field(); let ty = wfcx.normalize( hir_ty.span, None, @@ -1057,7 +1057,7 @@ fn check_type_defn<'tcx>( let last = idx == variant.fields.len() - 1; let field_id = field.did.expect_local(); let hir::FieldDef { ty: hir_ty, .. } = - tcx.hir().get_by_def_id(field_id).expect_field(); + tcx.hir_node_by_def_id(field_id).expect_field(); let ty = wfcx.normalize( hir_ty.span, None, @@ -1882,7 +1882,7 @@ impl<'tcx> WfCheckingCtxt<'_, 'tcx> { // Match the existing behavior. if pred.is_global() && !pred.has_type_flags(TypeFlags::HAS_BINDER_VARS) { let pred = self.normalize(span, None, pred); - let hir_node = tcx.hir().find_by_def_id(self.body_def_id); + let hir_node = tcx.opt_hir_node_by_def_id(self.body_def_id); // only use the span of the predicate clause (#90869) diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index ae35d6ebd75..fdd6424a19e 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -221,7 +221,7 @@ pub(crate) fn placeholder_type_error_diag<'tcx>( // Check if parent is const or static let parent_id = tcx.hir().parent_id(hir_ty.hir_id); - let parent_node = tcx.hir().get(parent_id); + let parent_node = tcx.hir_node(parent_id); is_const_or_static = matches!( parent_node, @@ -354,7 +354,7 @@ impl<'tcx> ItemCtxt<'tcx> { } pub fn node(&self) -> hir::Node<'tcx> { - self.tcx.hir().get(self.hir_id()) + self.tcx.hir_node(self.hir_id()) } } @@ -835,8 +835,7 @@ fn convert_variant( fn adt_def(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::AdtDef<'_> { use rustc_hir::*; - let hir_id = tcx.local_def_id_to_hir_id(def_id); - let Node::Item(item) = tcx.hir().get(hir_id) else { + let Node::Item(item) = tcx.hir_node_by_def_id(def_id) else { bug!(); }; @@ -1105,7 +1104,7 @@ fn fn_sig(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<ty::PolyFnSig< let icx = ItemCtxt::new(tcx, def_id); - let output = match tcx.hir().get(hir_id) { + let output = match tcx.hir_node(hir_id) { TraitItem(hir::TraitItem { kind: TraitItemKind::Fn(sig, TraitFn::Provided(_)), generics, @@ -1551,7 +1550,7 @@ fn compute_sig_of_foreign_fn_decl<'tcx>( } fn coroutine_kind(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option<hir::CoroutineKind> { - match tcx.hir().get_by_def_id(def_id) { + match tcx.hir_node_by_def_id(def_id) { Node::Expr(&rustc_hir::Expr { kind: rustc_hir::ExprKind::Closure(&rustc_hir::Closure { body, .. }), .. @@ -1561,7 +1560,7 @@ fn coroutine_kind(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option<hir::CoroutineK } fn is_type_alias_impl_trait<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> bool { - match tcx.hir().get_by_def_id(def_id) { + match tcx.hir_node_by_def_id(def_id) { Node::Item(hir::Item { kind: hir::ItemKind::OpaqueTy(opaque), .. }) => { matches!(opaque.origin, hir::OpaqueTyOrigin::TyAlias { .. }) } diff --git a/compiler/rustc_hir_analysis/src/collect/generics_of.rs b/compiler/rustc_hir_analysis/src/collect/generics_of.rs index 114c5147e11..c1c2bb62c66 100644 --- a/compiler/rustc_hir_analysis/src/collect/generics_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/generics_of.rs @@ -16,7 +16,7 @@ pub(super) fn generics_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Generics { let hir_id = tcx.local_def_id_to_hir_id(def_id); - let node = tcx.hir().get(hir_id); + let node = tcx.hir_node(hir_id); let parent_def_id = match node { Node::ImplItem(_) | Node::TraitItem(_) diff --git a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs index 4d0fd2b691a..0053af2b7df 100644 --- a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs +++ b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs @@ -34,17 +34,14 @@ fn associated_type_bounds<'tcx>( let trait_def_id = tcx.local_parent(assoc_item_def_id); let trait_predicates = tcx.trait_explicit_predicates_and_bounds(trait_def_id); - let bounds_from_parent = trait_predicates - .predicates - .iter() - .copied() - .filter(|(pred, _)| match pred.kind().skip_binder() { + let bounds_from_parent = trait_predicates.predicates.iter().copied().filter(|(pred, _)| { + match pred.kind().skip_binder() { ty::ClauseKind::Trait(tr) => tr.self_ty() == item_ty, ty::ClauseKind::Projection(proj) => proj.projection_ty.self_ty() == item_ty, ty::ClauseKind::TypeOutlives(outlives) => outlives.0 == item_ty, _ => false, - }) - .map(|(clause, span)| (clause, span)); + } + }); let all_bounds = tcx.arena.alloc_from_iter(bounds.clauses().chain(bounds_from_parent)); debug!( @@ -86,7 +83,7 @@ pub(super) fn explicit_item_bounds( // RPITIT's bounds are the same as opaque type bounds, but with // a projection self type. Some(ty::ImplTraitInTraitData::Trait { opaque_def_id, .. }) => { - let item = tcx.hir().get_by_def_id(opaque_def_id.expect_local()).expect_item(); + let item = tcx.hir_node_by_def_id(opaque_def_id.expect_local()).expect_item(); let opaque_ty = item.expect_opaque_ty(); return ty::EarlyBinder::bind(opaque_type_bounds( tcx, @@ -105,8 +102,7 @@ pub(super) fn explicit_item_bounds( None => {} } - let hir_id = tcx.local_def_id_to_hir_id(def_id); - let bounds = match tcx.hir().get(hir_id) { + let bounds = match tcx.hir_node_by_def_id(def_id) { hir::Node::TraitItem(hir::TraitItem { kind: hir::TraitItemKind::Type(bounds, _), span, diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs index ca9443225e2..de85a5d8626 100644 --- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs @@ -135,7 +135,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen } let hir_id = tcx.local_def_id_to_hir_id(def_id); - let node = tcx.hir().get(hir_id); + let node = tcx.hir_node(hir_id); let mut is_trait = None; let mut is_default_impl_trait = None; @@ -337,7 +337,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen // and the duplicated parameter, to ensure that they do not get out of sync. if let Node::Item(&Item { kind: ItemKind::OpaqueTy(..), .. }) = node { let opaque_ty_id = tcx.hir().parent_id(hir_id); - let opaque_ty_node = tcx.hir().get(opaque_ty_id); + let opaque_ty_node = tcx.hir_node(opaque_ty_id); let Node::Ty(&Ty { kind: TyKind::OpaqueDef(_, lifetimes, _), .. }) = opaque_ty_node else { bug!("unexpected {opaque_ty_node:?}") }; @@ -413,7 +413,7 @@ fn const_evaluatable_predicates_of( } let hir_id = tcx.local_def_id_to_hir_id(def_id); - let node = tcx.hir().get(hir_id); + let node = tcx.hir_node(hir_id); let mut collector = ConstCollector { tcx, preds: FxIndexSet::default() }; if let hir::Node::Item(item) = node @@ -633,7 +633,7 @@ pub(super) fn implied_predicates_with_filter( let trait_hir_id = tcx.local_def_id_to_hir_id(trait_def_id); - let Node::Item(item) = tcx.hir().get(trait_hir_id) else { + let Node::Item(item) = tcx.hir_node(trait_hir_id) else { bug!("trait_node_id {} is not an item", trait_hir_id); }; @@ -713,7 +713,7 @@ pub(super) fn type_param_predicates( let mut extend = None; let item_hir_id = tcx.local_def_id_to_hir_id(item_def_id); - let ast_generics = match tcx.hir().get(item_hir_id) { + let ast_generics = match tcx.hir_node(item_hir_id) { Node::TraitItem(item) => item.generics, Node::ImplItem(item) => item.generics, 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 e939b7abd90..a972c51e3ee 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -748,7 +748,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { } if let hir::Node::Item(hir::Item { kind: hir::ItemKind::OpaqueTy { .. }, .. - }) = self.tcx.hir().get(parent_id) + }) = self.tcx.hir_node(parent_id) { let mut err = self.tcx.sess.struct_span_err( lifetime.ident.span, @@ -1004,7 +1004,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { fn object_lifetime_default(tcx: TyCtxt<'_>, param_def_id: LocalDefId) -> ObjectLifetimeDefault { debug_assert_eq!(tcx.def_kind(param_def_id), DefKind::TyParam); - let hir::Node::GenericParam(param) = tcx.hir().get_by_def_id(param_def_id) else { + let hir::Node::GenericParam(param) = tcx.hir_node_by_def_id(param_def_id) else { bug!("expected GenericParam for object_lifetime_default"); }; match param.source { @@ -1305,7 +1305,7 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> { def = ResolvedArg::Error(guar); } else if let Some(body_id) = outermost_body { let fn_id = self.tcx.hir().body_owner(body_id); - match self.tcx.hir().get(fn_id) { + match self.tcx.hir_node(fn_id) { Node::Item(hir::Item { owner_id, kind: hir::ItemKind::Fn(..), .. }) | Node::TraitItem(hir::TraitItem { owner_id, @@ -2122,7 +2122,7 @@ pub fn deny_non_region_late_bound( let mut first = true; for (var, arg) in bound_vars { - let Node::GenericParam(param) = tcx.hir().get_by_def_id(*var) else { + let Node::GenericParam(param) = tcx.hir_node_by_def_id(*var) else { bug!(); }; diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs index c4fc4dda069..4b2ace748df 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs @@ -20,10 +20,10 @@ fn anon_const_type_of<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx> { use rustc_middle::ty::Ty; let hir_id = tcx.local_def_id_to_hir_id(def_id); - let Node::AnonConst(_) = tcx.hir().get(hir_id) else { panic!() }; + let Node::AnonConst(_) = tcx.hir_node(hir_id) else { panic!() }; let parent_node_id = tcx.hir().parent_id(hir_id); - let parent_node = tcx.hir().get(parent_node_id); + let parent_node = tcx.hir_node(parent_node_id); let (generics, arg_idx) = match parent_node { // Easy case: arrays repeat expressions. @@ -61,7 +61,7 @@ fn anon_const_type_of<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx> { } Node::TypeBinding(binding @ &TypeBinding { hir_id: binding_id, .. }) - if let Node::TraitRef(trait_ref) = tcx.hir().get(tcx.hir().parent_id(binding_id)) => + if let Node::TraitRef(trait_ref) = tcx.hir_node(tcx.hir().parent_id(binding_id)) => { let Some(trait_def_id) = trait_ref.trait_def_id() else { return Ty::new_error_with_message( @@ -354,7 +354,7 @@ pub(super) fn type_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<Ty let icx = ItemCtxt::new(tcx, def_id); - let output = match tcx.hir().get(hir_id) { + let output = match tcx.hir_node(hir_id) { Node::TraitItem(item) => match item.kind { TraitItemKind::Fn(..) => { let args = ty::GenericArgs::identity_for_item(tcx, def_id); @@ -517,8 +517,7 @@ pub(super) fn type_of_opaque( if let Some(def_id) = def_id.as_local() { use rustc_hir::*; - let hir_id = tcx.local_def_id_to_hir_id(def_id); - Ok(ty::EarlyBinder::bind(match tcx.hir().get(hir_id) { + Ok(ty::EarlyBinder::bind(match tcx.hir_node_by_def_id(def_id) { Node::Item(item) => match item.kind { ItemKind::OpaqueTy(OpaqueTy { origin: hir::OpaqueTyOrigin::TyAlias { .. }, diff --git a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs index f11a953536d..bf0d9d4856a 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs @@ -50,8 +50,8 @@ pub(super) fn find_opaque_ty_constraints_for_tait(tcx: TyCtxt<'_>, def_id: Local if scope == hir::CRATE_HIR_ID { tcx.hir().walk_toplevel_module(&mut locator); } else { - trace!("scope={:#?}", tcx.hir().get(scope)); - match tcx.hir().get(scope) { + trace!("scope={:#?}", tcx.hir_node(scope)); + match tcx.hir_node(scope) { // We explicitly call `visit_*` methods, instead of using `intravisit::walk_*` methods // This allows our visitor to process the defining item itself, causing // it to pick up any 'sibling' defining uses. @@ -95,7 +95,7 @@ pub(super) fn find_opaque_ty_constraints_for_tait(tcx: TyCtxt<'_>, def_id: Local let reported = tcx.sess.emit_err(UnconstrainedOpaqueType { span: tcx.def_span(def_id), name: tcx.item_name(parent_def_id.to_def_id()), - what: match tcx.hir().get(scope) { + what: match tcx.hir_node(scope) { _ if scope == hir::CRATE_HIR_ID => "module", Node::Item(hir::Item { kind: hir::ItemKind::Mod(_), .. }) => "module", Node::Item(hir::Item { kind: hir::ItemKind::Impl(_), .. }) => "impl", @@ -282,7 +282,7 @@ pub(super) fn find_opaque_ty_constraints_for_rpit<'tcx>( debug!(?scope); let mut locator = RpitConstraintChecker { def_id, tcx, found: mir_opaque_ty }; - match tcx.hir().get(scope) { + match tcx.hir_node(scope) { Node::Item(it) => intravisit::walk_item(&mut locator, it), Node::ImplItem(it) => intravisit::walk_impl_item(&mut locator, it), Node::TraitItem(it) => intravisit::walk_trait_item(&mut locator, it), diff --git a/compiler/rustc_hir_analysis/src/hir_wf_check.rs b/compiler/rustc_hir_analysis/src/hir_wf_check.rs index 4ed1377e7fc..78745fe47ab 100644 --- a/compiler/rustc_hir_analysis/src/hir_wf_check.rs +++ b/compiler/rustc_hir_analysis/src/hir_wf_check.rs @@ -122,7 +122,7 @@ fn diagnostic_hir_wf_check<'tcx>( // We will walk 'into' this type to try to find // a more precise span for our predicate. let tys = match loc { - WellFormedLoc::Ty(_) => match hir.get(hir_id) { + WellFormedLoc::Ty(_) => match tcx.hir_node(hir_id) { hir::Node::ImplItem(item) => match item.kind { hir::ImplItemKind::Type(ty) => vec![ty], hir::ImplItemKind::Const(ty, _) => vec![ty], diff --git a/compiler/rustc_hir_analysis/src/outlives/mod.rs b/compiler/rustc_hir_analysis/src/outlives/mod.rs index c065f6e7e88..9541e510702 100644 --- a/compiler/rustc_hir_analysis/src/outlives/mod.rs +++ b/compiler/rustc_hir_analysis/src/outlives/mod.rs @@ -41,7 +41,7 @@ fn inferred_outlives_of(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[(ty::Clau } } - match tcx.hir().get(id) { + match tcx.hir_node(id) { Node::Item(item) => match item.kind { hir::ItemKind::Struct(..) | hir::ItemKind::Enum(..) | hir::ItemKind::Union(..) => { let crate_map = tcx.inferred_outlives_crate(()); diff --git a/compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs b/compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs index 76bd370a641..fab841e3679 100644 --- a/compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs +++ b/compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs @@ -137,10 +137,9 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> { // is from the 'of_trait' field of the enclosing impl let parent = self.tcx.hir().get_parent(self.path_segment.hir_id); - let parent_item = self - .tcx - .hir() - .get_by_def_id(self.tcx.hir().get_parent_item(self.path_segment.hir_id).def_id); + let parent_item = self.tcx.hir_node_by_def_id( + self.tcx.hir().get_parent_item(self.path_segment.hir_id).def_id, + ); // Get the HIR id of the trait ref let hir::Node::TraitRef(hir::TraitRef { hir_ref_id: trait_ref_id, .. }) = parent else { @@ -774,7 +773,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> { ); if let Some(parent_node) = self.tcx.hir().opt_parent_id(self.path_segment.hir_id) - && let Some(parent_node) = self.tcx.hir().find(parent_node) + && let Some(parent_node) = self.tcx.opt_hir_node(parent_node) && let hir::Node::Expr(expr) = parent_node { match &expr.kind { diff --git a/compiler/rustc_hir_typeck/src/_match.rs b/compiler/rustc_hir_typeck/src/_match.rs index e7cbbc71335..181de372840 100644 --- a/compiler/rustc_hir_typeck/src/_match.rs +++ b/compiler/rustc_hir_typeck/src/_match.rs @@ -238,8 +238,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } // Next, make sure that we have no type expectation. - let Some(ret) = hir - .find_by_def_id(self.body_id) + let Some(ret) = self + .tcx + .opt_hir_node_by_def_id(self.body_id) .and_then(|owner| owner.fn_decl()) .map(|decl| decl.output.span()) else { @@ -317,7 +318,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { hir_id: hir::HirId, sp: Span, ) -> Option<(Span, String)> { - let node = self.tcx.hir().get(hir_id); + let node = self.tcx.hir_node(hir_id); if let hir::Node::Block(block) = node { // check that the body's parent is an fn let parent = self.tcx.hir().get_parent(self.tcx.hir().parent_id(block.hir_id)); diff --git a/compiler/rustc_hir_typeck/src/callee.rs b/compiler/rustc_hir_typeck/src/callee.rs index 512946cc504..baca2be06e6 100644 --- a/compiler/rustc_hir_typeck/src/callee.rs +++ b/compiler/rustc_hir_typeck/src/callee.rs @@ -295,7 +295,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ) { let hir = self.tcx.hir(); let parent_hir_id = hir.parent_id(hir_id); - let parent_node = hir.get(parent_hir_id); + let parent_node = self.tcx.hir_node(parent_hir_id); if let ( hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, body, .. }), @@ -313,7 +313,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, .. }), .. - }) = hir.get(async_closure) + }) = self.tcx.hir_node(async_closure) { fn_decl_span } else { @@ -343,7 +343,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { callee_expr: &'tcx hir::Expr<'tcx>, ) -> bool { let hir_id = self.tcx.hir().parent_id(call_expr.hir_id); - let parent_node = self.tcx.hir().get(hir_id); + let parent_node = self.tcx.hir_node(hir_id); if let ( hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Array(_), .. }), hir::ExprKind::Tup(exp), diff --git a/compiler/rustc_hir_typeck/src/check.rs b/compiler/rustc_hir_typeck/src/check.rs index 19b566ff9fa..7facf8a4016 100644 --- a/compiler/rustc_hir_typeck/src/check.rs +++ b/compiler/rustc_hir_typeck/src/check.rs @@ -8,7 +8,7 @@ use rustc_hir as hir; use rustc_hir::def::DefKind; use rustc_hir::intravisit::Visitor; use rustc_hir::lang_items::LangItem; -use rustc_hir_analysis::check::{check_function_signature, fn_maybe_err}; +use rustc_hir_analysis::check::{check_function_signature, forbid_intrinsic_abi}; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; use rustc_infer::infer::RegionVariableOrigin; use rustc_middle::ty::{self, Binder, Ty, TyCtxt}; @@ -53,7 +53,7 @@ pub(super) fn check_fn<'a, 'tcx>( let span = body.value.span; - fn_maybe_err(tcx, span, fn_sig.abi); + forbid_intrinsic_abi(tcx, span, fn_sig.abi); if let Some(kind) = body.coroutine_kind && can_be_coroutine.is_some() diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs index f0bb18df48c..fa087d0a4b0 100644 --- a/compiler/rustc_hir_typeck/src/closure.rs +++ b/compiler/rustc_hir_typeck/src/closure.rs @@ -483,8 +483,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { body: &hir::Body<'_>, expected_sig: ExpectedSig<'tcx>, ) -> ClosureSignatures<'tcx> { - let hir = self.tcx.hir(); - let expr_map_node = hir.get_by_def_id(expr_def_id); + let expr_map_node = self.tcx.hir_node_by_def_id(expr_def_id); let expected_args: Vec<_> = expected_sig .sig .skip_binder() diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index 0d3bb0f7e0c..d571e04a49a 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -1694,14 +1694,14 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { let ret_msg = "return a value for the case when the loop has zero elements to iterate on"; let ret_ty_msg = "otherwise consider changing the return type to account for that possibility"; - if let Some(node) = hir.find(item.into()) + if let Some(node) = tcx.opt_hir_node(item.into()) && let Some(body_id) = node.body_id() && let Some(sig) = node.fn_sig() && let hir::ExprKind::Block(block, _) = hir.body(body_id).value.kind && !ty.is_never() { let indentation = if let None = block.expr - && let [.., last] = &block.stmts[..] + && let [.., last] = &block.stmts { tcx.sess.source_map().indentation_before(last.span).unwrap_or_else(String::new) } else if let Some(expr) = block.expr { @@ -1710,7 +1710,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { String::new() }; if let None = block.expr - && let [.., last] = &block.stmts[..] + && let [.., last] = &block.stmts { err.span_suggestion_verbose( last.span.shrink_to_hi(), @@ -1750,7 +1750,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { } } if let None = block.expr - && let [.., last] = &block.stmts[..] + && let [.., last] = &block.stmts { sugg.push((last.span.shrink_to_hi(), format!("\n{indentation}None"))); } else if let Some(expr) = block.expr { @@ -1776,7 +1776,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { let mut err = fcx.err_ctxt().report_mismatched_types(cause, expected, found, ty_err); let parent_id = fcx.tcx.hir().parent_id(id); - let parent = fcx.tcx.hir().get(parent_id); + let parent = fcx.tcx.hir_node(parent_id); if let Some(expr) = expression && let hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { body, .. }), @@ -1835,7 +1835,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { } let parent_id = fcx.tcx.hir().get_parent_item(id); - let parent_item = fcx.tcx.hir().get_by_def_id(parent_id.def_id); + let parent_item = fcx.tcx.hir_node_by_def_id(parent_id.def_id); if let (Some(expr), Some(_), Some((fn_id, fn_decl, _, _))) = (expression, blk_id, fcx.get_node_fn_decl(parent_item)) diff --git a/compiler/rustc_hir_typeck/src/demand.rs b/compiler/rustc_hir_typeck/src/demand.rs index 8f633834885..580586f6267 100644 --- a/compiler/rustc_hir_typeck/src/demand.rs +++ b/compiler/rustc_hir_typeck/src/demand.rs @@ -289,7 +289,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let hir::def::Res::Local(local_hir_id) = p.res else { return false; }; - let hir::Node::Pat(pat) = hir.get(local_hir_id) else { + let hir::Node::Pat(pat) = self.tcx.hir_node(local_hir_id) else { return false; }; let (init_ty_hir_id, init) = match hir.get_parent(pat.hir_id) { @@ -557,7 +557,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { hir::Node::Stmt(hir::Stmt { kind: hir::StmtKind::Semi(&ref p), .. }) | hir::Node::Block(hir::Block { expr: Some(&ref p), .. }) | hir::Node::Expr(&ref p), - ) = self.tcx.hir().find(parent_id) + ) = self.tcx.opt_hir_node(parent_id) else { break; }; @@ -570,7 +570,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut direct = false; loop { // Climb the HIR tree to find the (desugared) `loop` this `break` corresponds to. - let parent = match self.tcx.hir().find(parent_id) { + let parent = match self.tcx.opt_hir_node(parent_id) { Some(hir::Node::Expr(&ref parent)) => { parent_id = self.tcx.hir().parent_id(parent.hir_id); parent @@ -672,7 +672,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { error: Option<TypeError<'tcx>>, ) { let parent = self.tcx.hir().parent_id(expr.hir_id); - match (self.tcx.hir().find(parent), error) { + match (self.tcx.opt_hir_node(parent), error) { (Some(hir::Node::Local(hir::Local { ty: Some(ty), init: Some(init), .. })), _) if init.hir_id == expr.hir_id => { @@ -717,7 +717,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { None, hir::Path { res: hir::def::Res::Local(hir_id), .. }, )) => { - if let Some(hir::Node::Pat(pat)) = self.tcx.hir().find(*hir_id) { + if let Some(hir::Node::Pat(pat)) = self.tcx.opt_hir_node(*hir_id) { primary_span = pat.span; secondary_span = pat.span; match self.tcx.hir().find_parent(pat.hir_id) { @@ -790,7 +790,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return; }; let Some(hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Assign(lhs, rhs, _), .. })) = - self.tcx.hir().find(parent) + self.tcx.opt_hir_node(parent) else { return; }; @@ -862,7 +862,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { mutability, ), ), - match &args[..] { + match &args { [] => (base.span.shrink_to_hi().with_hi(deref.span.hi()), ")".to_string()), [first, ..] => (base.span.between(first.span), ", ".to_string()), }, @@ -1014,8 +1014,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { hir::Path { res: hir::def::Res::Local(bind_hir_id), .. }, )) = expr.kind { - let bind = self.tcx.hir().find(*bind_hir_id); - let parent = self.tcx.hir().find(self.tcx.hir().parent_id(*bind_hir_id)); + let bind = self.tcx.opt_hir_node(*bind_hir_id); + let parent = self.tcx.opt_hir_node(self.tcx.hir().parent_id(*bind_hir_id)); if let Some(hir::Node::Pat(hir::Pat { kind: hir::PatKind::Binding(_, _hir_id, _, _), .. diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index 7c157c0eae0..725f327d835 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -883,7 +883,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { kind: hir::ImplItemKind::Fn(..), span: encl_fn_span, .. - })) = self.tcx.hir().find_by_def_id(encl_item_id.def_id) + })) = self.tcx.opt_hir_node_by_def_id(encl_item_id.def_id) { // We are inside a function body, so reporting "return statement // outside of function body" needs an explanation. @@ -997,7 +997,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { then: impl FnOnce(&hir::Expr<'_>), ) { let mut parent = self.tcx.hir().parent_id(original_expr_id); - while let Some(node) = self.tcx.hir().find(parent) { + while let Some(node) = self.tcx.opt_hir_node(parent) { match node { hir::Node::Expr(hir::Expr { kind: diff --git a/compiler/rustc_hir_typeck/src/fallback.rs b/compiler/rustc_hir_typeck/src/fallback.rs index 38b780367e6..023bd70be17 100644 --- a/compiler/rustc_hir_typeck/src/fallback.rs +++ b/compiler/rustc_hir_typeck/src/fallback.rs @@ -24,9 +24,9 @@ impl<'tcx> FnCtxt<'_, 'tcx> { self.fulfillment_cx.borrow_mut().pending_obligations() ); - let fallback_occured = self.fallback_types() | self.fallback_effects(); + let fallback_occurred = self.fallback_types() | self.fallback_effects(); - if !fallback_occured { + if !fallback_occurred { return; } @@ -57,24 +57,25 @@ impl<'tcx> FnCtxt<'_, 'tcx> { } fn fallback_types(&self) -> bool { - // Check if we have any unsolved variables. If not, no need for fallback. - let unsolved_variables = self.unsolved_variables(); + // Check if we have any unresolved variables. If not, no need for fallback. + let unresolved_variables = self.unresolved_variables(); - if unsolved_variables.is_empty() { + if unresolved_variables.is_empty() { return false; } - let diverging_fallback = self.calculate_diverging_fallback(&unsolved_variables); + let diverging_fallback = self.calculate_diverging_fallback(&unresolved_variables); // We do fallback in two passes, to try to generate // better error messages. // The first time, we do *not* replace opaque types. - for ty in unsolved_variables { + let mut fallback_occurred = false; + for ty in unresolved_variables { debug!("unsolved_variable = {:?}", ty); - self.fallback_if_possible(ty, &diverging_fallback); + fallback_occurred |= self.fallback_if_possible(ty, &diverging_fallback); } - true + fallback_occurred } fn fallback_effects(&self) -> bool { @@ -84,9 +85,8 @@ impl<'tcx> FnCtxt<'_, 'tcx> { return false; } - // not setting `fallback_has_occured` here because that field is only used for type fallback - // diagnostics. - + // not setting the `fallback_has_occured` field here because + // that field is only used for type fallback diagnostics. for effect in unsolved_effects { let expected = self.tcx.consts.true_; let cause = self.misc(rustc_span::DUMMY_SP); @@ -122,7 +122,7 @@ impl<'tcx> FnCtxt<'_, 'tcx> { &self, ty: Ty<'tcx>, diverging_fallback: &UnordMap<Ty<'tcx>, Ty<'tcx>>, - ) { + ) -> bool { // Careful: we do NOT shallow-resolve `ty`. We know that `ty` // is an unsolved variable, and we determine its fallback // based solely on how it was created, not what other type @@ -147,7 +147,7 @@ impl<'tcx> FnCtxt<'_, 'tcx> { ty::Infer(ty::FloatVar(_)) => self.tcx.types.f64, _ => match diverging_fallback.get(&ty) { Some(&fallback_ty) => fallback_ty, - None => return, + None => return false, }, }; debug!("fallback_if_possible(ty={:?}): defaulting to `{:?}`", ty, fallback); @@ -159,6 +159,7 @@ impl<'tcx> FnCtxt<'_, 'tcx> { .unwrap_or(rustc_span::DUMMY_SP); self.demand_eqtype(span, ty, fallback); self.fallback_has_occurred.set(true); + true } /// The "diverging fallback" system is rather complicated. This is @@ -230,9 +231,9 @@ impl<'tcx> FnCtxt<'_, 'tcx> { /// any variable that has an edge into `D`. fn calculate_diverging_fallback( &self, - unsolved_variables: &[Ty<'tcx>], + unresolved_variables: &[Ty<'tcx>], ) -> UnordMap<Ty<'tcx>, Ty<'tcx>> { - debug!("calculate_diverging_fallback({:?})", unsolved_variables); + debug!("calculate_diverging_fallback({:?})", unresolved_variables); // Construct a coercion graph where an edge `A -> B` indicates // a type variable is that is coerced @@ -240,7 +241,7 @@ impl<'tcx> FnCtxt<'_, 'tcx> { // Extract the unsolved type inference variable vids; note that some // unsolved variables are integer/float variables and are excluded. - let unsolved_vids = unsolved_variables.iter().filter_map(|ty| ty.ty_vid()); + let unsolved_vids = unresolved_variables.iter().filter_map(|ty| ty.ty_vid()); // Compute the diverging root vids D -- that is, the root vid of // those type variables that (a) are the target of a coercion from diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index df840aaa578..572a3312506 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -994,7 +994,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Get enclosing Fn, if it is a function or a trait method, unless there's a `loop` or // `while` before reaching it, as block tail returns are not available in them. self.tcx.hir().get_return_block(blk_id).and_then(|blk_id| { - let parent = self.tcx.hir().get(blk_id); + let parent = self.tcx.hir_node(blk_id); self.get_node_fn_decl(parent) .map(|(fn_id, fn_decl, _, is_main)| (fn_id, fn_decl, is_main)) }) 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 9b5459529ff..76360239c45 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 @@ -94,7 +94,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } let hir = self.tcx.hir(); - let (expr, qpath) = match hir.get(hir_id) { + let (expr, qpath) = match self.tcx.hir_node(hir_id) { hir::Node::Expr(expr) => { if self.closure_span_overlaps_error(error, expr.span) { return false; @@ -454,7 +454,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .find_ancestor_in_same_ctxt(error.obligation.cause.span) .unwrap_or(arg.span); - if let hir::Node::Expr(arg_expr) = self.tcx.hir().get(arg.hir_id) { + if let hir::Node::Expr(arg_expr) = self.tcx.hir_node(arg.hir_id) { // This is more specific than pointing at the entire argument. self.blame_specific_expr_if_possible(error, arg_expr) } diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index bb9b849f03b..bb393e27a5b 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -1734,7 +1734,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } fn parent_item_span(&self, id: hir::HirId) -> Option<Span> { - let node = self.tcx.hir().get_by_def_id(self.tcx.hir().get_parent_item(id).def_id); + let node = self.tcx.hir_node_by_def_id(self.tcx.hir().get_parent_item(id).def_id); match node { Node::Item(&hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. }) | Node::ImplItem(&hir::ImplItem { kind: hir::ImplItemKind::Fn(_, body_id), .. }) => { @@ -1750,7 +1750,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { /// Given a function block's `HirId`, returns its `FnDecl` if it exists, or `None` otherwise. fn get_parent_fn_decl(&self, blk_id: hir::HirId) -> Option<(&'tcx hir::FnDecl<'tcx>, Ident)> { - let parent = self.tcx.hir().get_by_def_id(self.tcx.hir().get_parent_item(blk_id).def_id); + let parent = self.tcx.hir_node_by_def_id(self.tcx.hir().get_parent_item(blk_id).def_id); self.get_node_fn_decl(parent).map(|(_, fn_decl, ident, _)| (fn_decl, ident)) } @@ -2084,7 +2084,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let node = self .tcx .opt_local_def_id_to_hir_id(self.tcx.hir().get_parent_item(call_expr.hir_id)) - .and_then(|hir_id| self.tcx.hir().find(hir_id)); + .and_then(|hir_id| self.tcx.opt_hir_node(hir_id)); match node { Some(hir::Node::Item(item)) => call_finder.visit_item(item), Some(hir::Node::TraitItem(item)) => call_finder.visit_trait_item(item), diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index 2c9942caab2..28f377083f6 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -677,7 +677,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // can suggest Box::pin. let parent = self.tcx.hir().parent_id(expr.hir_id); let Some(Node::Expr(Expr { kind: ExprKind::Call(fn_name, _), .. })) = - self.tcx.hir().find(parent) + self.tcx.opt_hir_node(parent) else { return false; }; @@ -824,7 +824,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let hir::TyKind::OpaqueDef(item_id, ..) = hir_ty.kind && let hir::Node::Item(hir::Item { kind: hir::ItemKind::OpaqueTy(op_ty), .. - }) = self.tcx.hir().get(item_id.hir_id()) + }) = self.tcx.hir_node(item_id.hir_id()) && let [ hir::GenericBound::LangItemTrait(hir::LangItem::Future, _, _, generic_args), ] = op_ty.bounds @@ -902,7 +902,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let ty::Param(expected_ty_as_param) = expected.kind() else { return }; - let fn_node = self.tcx.hir().find(fn_id); + let fn_node = self.tcx.opt_hir_node(fn_id); let Some(hir::Node::Item(hir::Item { kind: @@ -1047,7 +1047,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { }; let ty = self.normalize(expr.span, ty); if self.can_coerce(found, ty) { - if let Some(node) = self.tcx.hir().find(fn_id) + if let Some(node) = self.tcx.opt_hir_node(fn_id) && let Some(owner_node) = node.as_owner() && let Some(span) = expr.span.find_ancestor_inside(owner_node.span()) { @@ -1545,12 +1545,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } fn is_loop(&self, id: hir::HirId) -> bool { - let node = self.tcx.hir().get(id); + let node = self.tcx.hir_node(id); matches!(node, Node::Expr(Expr { kind: ExprKind::Loop(..), .. })) } fn is_local_statement(&self, id: hir::HirId) -> bool { - let node = self.tcx.hir().get(id); + let node = self.tcx.hir_node(id); matches!(node, Node::Stmt(Stmt { kind: StmtKind::Local(..), .. })) } @@ -1677,11 +1677,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { None, hir::Path { segments: [_], res: crate::Res::Local(binding), .. }, )) => { - let Some(hir::Node::Pat(hir::Pat { hir_id, .. })) = self.tcx.hir().find(*binding) + let Some(hir::Node::Pat(hir::Pat { hir_id, .. })) = self.tcx.opt_hir_node(*binding) else { return expr; }; - let Some(parent) = self.tcx.hir().find(self.tcx.hir().parent_id(*hir_id)) else { + let Some(parent) = self.tcx.opt_hir_node(self.tcx.hir().parent_id(*hir_id)) else { return expr; }; @@ -1697,7 +1697,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .. }) => { let Some(hir::Node::Local(hir::Local { init: Some(init), .. })) = - self.tcx.hir().find(self.tcx.hir().parent_id(*pat_hir_id)) + self.tcx.opt_hir_node(self.tcx.hir().parent_id(*pat_hir_id)) else { return expr; }; @@ -1730,8 +1730,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { && let hir::Path { segments: [_], res: crate::Res::Local(binding), .. } = call_expr_path && let Some(hir::Node::Pat(hir::Pat { hir_id, .. })) = - self.tcx.hir().find(*binding) - && let Some(closure) = self.tcx.hir().find(self.tcx.hir().parent_id(*hir_id)) + self.tcx.opt_hir_node(*binding) + && let Some(closure) = self.tcx.opt_hir_node(self.tcx.hir().parent_id(*hir_id)) && let hir::Node::Local(hir::Local { init: Some(init), .. }) = closure && let Expr { kind: hir::ExprKind::Closure(hir::Closure { body: body_id, .. }), @@ -1985,7 +1985,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let Some(hir::Node::Block(&hir::Block { span: block_span, expr: Some(e), .. - })) = self.tcx.hir().find(parent) + })) = self.tcx.opt_hir_node(parent) { if e.hir_id == id { if let Some(span) = expr.span.find_ancestor_inside(block_span) { @@ -2211,7 +2211,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let local_parent = self.tcx.hir().parent_id(local_id); let Some(Node::Param(hir::Param { hir_id: param_hir_id, .. })) = - self.tcx.hir().find(local_parent) + self.tcx.opt_hir_node(local_parent) else { return None; }; @@ -2221,13 +2221,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { hir_id: expr_hir_id, kind: hir::ExprKind::Closure(hir::Closure { fn_decl: closure_fn_decl, .. }), .. - })) = self.tcx.hir().find(param_parent) + })) = self.tcx.opt_hir_node(param_parent) else { return None; }; let expr_parent = self.tcx.hir().parent_id(*expr_hir_id); - let hir = self.tcx.hir().find(expr_parent); + let hir = self.tcx.opt_hir_node(expr_parent); let closure_params_len = closure_fn_decl.inputs.len(); let ( Some(Node::Expr(hir::Expr { @@ -2667,7 +2667,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let Some(Node::Expr(hir::Expr { kind: hir::ExprKind::If(_, _, Some(else_expr)), .. - })) = self.tcx.hir().find(parent_id) + })) = self.tcx.opt_hir_node(parent_id) { return else_expr.hir_id == expr.hir_id; } @@ -3057,7 +3057,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return; }; let parent = self.tcx.hir().parent_id(expr.hir_id); - if let Some(hir::Node::ExprField(_)) = self.tcx.hir().find(parent) { + if let Some(hir::Node::ExprField(_)) = self.tcx.opt_hir_node(parent) { // Ignore `Foo { field: a..Default::default() }` return; } @@ -3136,7 +3136,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let hir::def::Res::Local(hir_id) = path.res else { return; }; - let Some(hir::Node::Pat(pat)) = self.tcx.hir().find(hir_id) else { + let Some(hir::Node::Pat(pat)) = self.tcx.opt_hir_node(hir_id) else { return; }; let Some(hir::Node::Local(hir::Local { ty: None, init: Some(init), .. })) = diff --git a/compiler/rustc_hir_typeck/src/lib.rs b/compiler/rustc_hir_typeck/src/lib.rs index 29e4fd9239a..f1f893623f6 100644 --- a/compiler/rustc_hir_typeck/src/lib.rs +++ b/compiler/rustc_hir_typeck/src/lib.rs @@ -127,7 +127,7 @@ fn has_typeck_results(tcx: TyCtxt<'_>, def_id: DefId) -> bool { } if let Some(def_id) = def_id.as_local() { - primary_body_of(tcx.hir().get_by_def_id(def_id)).is_some() + primary_body_of(tcx.hir_node_by_def_id(def_id)).is_some() } else { false } @@ -166,7 +166,7 @@ fn typeck_with_fallback<'tcx>( } let id = tcx.local_def_id_to_hir_id(def_id); - let node = tcx.hir().get(id); + let node = tcx.hir_node(id); let span = tcx.hir().span(id); // Figure out what primary body this item has. @@ -201,7 +201,7 @@ fn typeck_with_fallback<'tcx>( span, })) } else if let Node::AnonConst(_) = node { - match tcx.hir().get(tcx.hir().parent_id(id)) { + match tcx.hir_node(tcx.hir().parent_id(id)) { Node::Ty(&hir::Ty { kind: hir::TyKind::Typeof(ref anon_const), .. }) if anon_const.hir_id == id => { @@ -283,8 +283,6 @@ fn typeck_with_fallback<'tcx>( fcx.check_asms(); - fcx.infcx.skip_region_resolution(); - let typeck_results = fcx.resolve_type_vars_in_body(body); // Consistency check our TypeckResults instance can hold all ItemLocalIds diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index b38a6ebd501..8fb703fa7f5 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -230,7 +230,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = kind && let hir::def::Res::Local(hir_id) = path.res - && let Some(hir::Node::Pat(b)) = self.tcx.hir().find(hir_id) + && let Some(hir::Node::Pat(b)) = self.tcx.opt_hir_node(hir_id) && let Some(hir::Node::Param(p)) = self.tcx.hir().find_parent(b.hir_id) && let Some(node) = self.tcx.hir().find_parent(p.hir_id) && let Some(decl) = node.fn_decl() @@ -262,7 +262,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { rcvr_ty: Ty<'tcx>, rcvr_expr: &hir::Expr<'tcx>, ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - let (ty_str, _ty_file) = self.tcx.short_ty_string(rcvr_ty); + let mut file = None; + let ty_str = self.tcx.short_ty_string(rcvr_ty, &mut file); let mut err = struct_span_err!( self.tcx.sess, rcvr_expr.span, @@ -280,6 +281,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { "a writer is needed before this format string", ); }; + if let Some(file) = file { + err.note(format!("the full type name has been written to '{}'", file.display())); + } err } @@ -299,11 +303,15 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mode = no_match_data.mode; let tcx = self.tcx; let rcvr_ty = self.resolve_vars_if_possible(rcvr_ty); - let ((mut ty_str, ty_file), short_ty_str) = + let mut ty_file = None; + let (mut ty_str, short_ty_str) = if trait_missing_method && let ty::Dynamic(predicates, _, _) = rcvr_ty.kind() { - ((predicates.to_string(), None), with_forced_trimmed_paths!(predicates.to_string())) + (predicates.to_string(), with_forced_trimmed_paths!(predicates.to_string())) } else { - (tcx.short_ty_string(rcvr_ty), with_forced_trimmed_paths!(rcvr_ty.to_string())) + ( + tcx.short_ty_string(rcvr_ty, &mut ty_file), + with_forced_trimmed_paths!(rcvr_ty.to_string()), + ) }; let is_method = mode == Mode::MethodCall; let unsatisfied_predicates = &no_match_data.unsatisfied_predicates; @@ -605,16 +613,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let (ty::Param(_), ty::PredicateKind::Clause(ty::ClauseKind::Trait(p))) = (self_ty.kind(), parent_pred.kind().skip_binder()) { - let hir = self.tcx.hir(); let node = match p.trait_ref.self_ty().kind() { ty::Param(_) => { // Account for `fn` items like in `issue-35677.rs` to // suggest restricting its type params. - Some(hir.get_by_def_id(self.body_id)) - } - ty::Adt(def, _) => { - def.did().as_local().map(|def_id| hir.get_by_def_id(def_id)) + Some(self.tcx.hir_node_by_def_id(self.body_id)) } + ty::Adt(def, _) => def + .did() + .as_local() + .map(|def_id| self.tcx.hir_node_by_def_id(def_id)), _ => None, }; if let Some(hir::Node::Item(hir::Item { kind, .. })) = node @@ -1952,7 +1960,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { visitor.visit_body(body); let parent = self.tcx.hir().parent_id(seg1.hir_id); - if let Some(Node::Expr(call_expr)) = self.tcx.hir().find(parent) + if let Some(Node::Expr(call_expr)) = self.tcx.opt_hir_node(parent) && let Some(expr) = visitor.result && let Some(self_ty) = self.node_ty_opt(expr.hir_id) { @@ -2869,11 +2877,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let id = item .def_id .as_local() - .map(|def_id| self.tcx.local_def_id_to_hir_id(def_id)); + .map(|def_id| self.tcx.hir_node_by_def_id(def_id)); if let Some(hir::Node::TraitItem(hir::TraitItem { kind: hir::TraitItemKind::Fn(fn_sig, method), .. - })) = id.map(|id| self.tcx.hir().get(id)) + })) = id { let self_first_arg = match method { hir::TraitFn::Required([ident, ..]) => { @@ -2963,7 +2971,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Get the `hir::Param` to verify whether it already has any bounds. // We do this to avoid suggesting code that ends up as `T: FooBar`, // instead we suggest `T: Foo + Bar` in that case. - match hir.get(id) { + match self.tcx.hir_node(id) { Node::GenericParam(param) => { enum Introducer { Plus, @@ -3183,7 +3191,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } let parent = self.tcx.hir().parent_id(expr.hir_id); - if let Some(Node::Expr(call_expr)) = self.tcx.hir().find(parent) + if let Some(Node::Expr(call_expr)) = self.tcx.opt_hir_node(parent) && let hir::ExprKind::MethodCall( hir::PathSegment { ident: method_name, .. }, self_expr, diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index b63bb1e00cb..165fc630787 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -720,7 +720,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { && let PatKind::Binding(_, _, binding, ..) = inner.kind { let binding_parent_id = tcx.hir().parent_id(pat.hir_id); - let binding_parent = tcx.hir().get(binding_parent_id); + let binding_parent = tcx.hir_node(binding_parent_id); debug!(?inner, ?pat, ?binding_parent); let mutability = match mutbl { @@ -941,7 +941,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Const(_, _, body_id), .. - })) => match self.tcx.hir().get(body_id.hir_id) { + })) => match self.tcx.hir_node(body_id.hir_id) { hir::Node::Expr(expr) => { if hir::is_range_literal(expr) { let span = self.tcx.hir().span(body_id.hir_id); diff --git a/compiler/rustc_hir_typeck/src/rvalue_scopes.rs b/compiler/rustc_hir_typeck/src/rvalue_scopes.rs index 04d84102336..b9b3ed53dae 100644 --- a/compiler/rustc_hir_typeck/src/rvalue_scopes.rs +++ b/compiler/rustc_hir_typeck/src/rvalue_scopes.rs @@ -69,12 +69,13 @@ pub fn resolve_rvalue_scopes<'a, 'tcx>( def_id: DefId, ) -> RvalueScopes { let tcx = &fcx.tcx; - let hir_map = tcx.hir(); let mut rvalue_scopes = RvalueScopes::new(); debug!("start resolving rvalue scopes, def_id={def_id:?}"); debug!("rvalue_scope: rvalue_candidates={:?}", scope_tree.rvalue_candidates); for (&hir_id, candidate) in &scope_tree.rvalue_candidates { - let Some(Node::Expr(expr)) = hir_map.find(hir_id) else { bug!("hir node does not exist") }; + let Some(Node::Expr(expr)) = tcx.opt_hir_node(hir_id) else { + bug!("hir node does not exist") + }; record_rvalue_scope(&mut rvalue_scopes, expr, candidate); } rvalue_scopes diff --git a/compiler/rustc_hir_typeck/src/upvar.rs b/compiler/rustc_hir_typeck/src/upvar.rs index c0a5818b9e5..f5bed834eba 100644 --- a/compiler/rustc_hir_typeck/src/upvar.rs +++ b/compiler/rustc_hir_typeck/src/upvar.rs @@ -315,11 +315,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let final_tupled_upvars_type = Ty::new_tup(self.tcx, &final_upvar_tys); self.demand_suptype(span, args.tupled_upvars_ty(), final_tupled_upvars_type); - let fake_reads = delegate - .fake_reads - .into_iter() - .map(|(place, cause, hir_id)| (place, cause, hir_id)) - .collect(); + let fake_reads = delegate.fake_reads; + self.typeck_results.borrow_mut().closure_fake_reads.insert(closure_def_id, fake_reads); if self.tcx.sess.opts.unstable_opts.profile_closures { @@ -853,7 +850,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Looks like a macro fragment. Try to find the real block. if let Some(hir::Node::Expr(&hir::Expr { kind: hir::ExprKind::Block(block, ..), .. - })) = self.tcx.hir().find(body_id.hir_id) { + })) = self.tcx.opt_hir_node(body_id.hir_id) { // If the body is a block (with `{..}`), we use the span of that block. // E.g. with a `|| $body` expanded from a `m!({ .. })`, we use `{ .. }`, and not `$body`. // Since we know it's a block, we know we can insert the `let _ = ..` without @@ -1673,7 +1670,7 @@ fn apply_capture_kind_on_capture_ty<'tcx>( fn drop_location_span(tcx: TyCtxt<'_>, hir_id: hir::HirId) -> Span { let owner_id = tcx.hir().get_enclosing_scope(hir_id).unwrap(); - let owner_node = tcx.hir().get(owner_id); + let owner_node = tcx.hir_node(owner_id); let owner_span = match owner_node { hir::Node::Item(item) => match item.kind { hir::ItemKind::Fn(_, _, owner_id) => tcx.hir().span(owner_id.hir_id), diff --git a/compiler/rustc_hir_typeck/src/writeback.rs b/compiler/rustc_hir_typeck/src/writeback.rs index cc617fd2d0b..1609c036fbd 100644 --- a/compiler/rustc_hir_typeck/src/writeback.rs +++ b/compiler/rustc_hir_typeck/src/writeback.rs @@ -8,12 +8,16 @@ use rustc_errors::{ErrorGuaranteed, StashKey}; use rustc_hir as hir; use rustc_hir::intravisit::{self, Visitor}; use rustc_infer::infer::error_reporting::TypeAnnotationNeeded::E0282; +use rustc_middle::traits::ObligationCause; use rustc_middle::ty::adjustment::{Adjust, Adjustment, PointerCoercion}; use rustc_middle::ty::fold::{TypeFoldable, TypeFolder}; use rustc_middle::ty::visit::TypeVisitableExt; +use rustc_middle::ty::TypeSuperFoldable; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_span::symbol::sym; use rustc_span::Span; +use rustc_trait_selection::solve; +use rustc_trait_selection::traits::error_reporting::TypeErrCtxtExt; use std::mem; @@ -695,24 +699,22 @@ impl<'cx, 'tcx> WritebackCx<'cx, 'tcx> { } } - fn resolve<T>(&mut self, x: T, span: &dyn Locatable) -> T + fn resolve<T>(&mut self, value: T, span: &dyn Locatable) -> T where T: TypeFoldable<TyCtxt<'tcx>>, { - let mut resolver = Resolver::new(self.fcx, span, self.body); - let x = x.fold_with(&mut resolver); - if cfg!(debug_assertions) && x.has_infer() { - span_bug!(span.to_span(self.fcx.tcx), "writeback: `{:?}` has inference variables", x); - } + let value = self.fcx.resolve_vars_if_possible(value); + let value = value.fold_with(&mut Resolver::new(self.fcx, span, self.body)); + assert!(!value.has_infer()); // We may have introduced e.g. `ty::Error`, if inference failed, make sure // to mark the `TypeckResults` as tainted in that case, so that downstream // users of the typeck results don't produce extra errors, or worse, ICEs. - if let Some(e) = resolver.replaced_with_error { - self.typeck_results.tainted_by_errors = Some(e); + if let Err(guar) = value.error_reported() { + self.typeck_results.tainted_by_errors = Some(guar); } - x + value } } @@ -732,15 +734,13 @@ impl Locatable for hir::HirId { } } -/// The Resolver. This is the type folding engine that detects -/// unresolved types and so forth. struct Resolver<'cx, 'tcx> { fcx: &'cx FnCtxt<'cx, 'tcx>, span: &'cx dyn Locatable, body: &'tcx hir::Body<'tcx>, - - /// Set to `Some` if any `Ty` or `ty::Const` had to be replaced with an `Error`. - replaced_with_error: Option<ErrorGuaranteed>, + /// Whether we should normalize using the new solver, disabled + /// both when using the old solver and when resolving predicates. + should_normalize: bool, } impl<'cx, 'tcx> Resolver<'cx, 'tcx> { @@ -749,7 +749,7 @@ impl<'cx, 'tcx> Resolver<'cx, 'tcx> { span: &'cx dyn Locatable, body: &'tcx hir::Body<'tcx>, ) -> Resolver<'cx, 'tcx> { - Resolver { fcx, span, body, replaced_with_error: None } + Resolver { fcx, span, body, should_normalize: fcx.next_trait_solver() } } fn report_error(&self, p: impl Into<ty::GenericArg<'tcx>>) -> ErrorGuaranteed { @@ -768,6 +768,42 @@ impl<'cx, 'tcx> Resolver<'cx, 'tcx> { .emit(), } } + + fn handle_term<T>( + &mut self, + value: T, + outer_exclusive_binder: impl FnOnce(T) -> ty::DebruijnIndex, + new_err: impl Fn(TyCtxt<'tcx>, ErrorGuaranteed) -> T, + ) -> T + where + T: Into<ty::GenericArg<'tcx>> + TypeSuperFoldable<TyCtxt<'tcx>> + Copy, + { + let tcx = self.fcx.tcx; + // We must deeply normalize in the new solver, since later lints + // expect that types that show up in the typeck are fully + // normalized. + let value = if self.should_normalize { + let body_id = tcx.hir().body_owner_def_id(self.body.id()); + let cause = ObligationCause::misc(self.span.to_span(tcx), body_id); + let at = self.fcx.at(&cause, self.fcx.param_env); + let universes = vec![None; outer_exclusive_binder(value).as_usize()]; + solve::deeply_normalize_with_skipped_universes(at, value, universes).unwrap_or_else( + |errors| { + let guar = self.fcx.err_ctxt().report_fulfillment_errors(errors); + new_err(tcx, guar) + }, + ) + } else { + value + }; + + if value.has_non_region_infer() { + let guar = self.report_error(value); + new_err(tcx, guar) + } else { + tcx.fold_regions(value, |_, _| tcx.lifetimes.re_erased) + } + } } impl<'cx, 'tcx> TypeFolder<TyCtxt<'tcx>> for Resolver<'cx, 'tcx> { @@ -775,57 +811,28 @@ impl<'cx, 'tcx> TypeFolder<TyCtxt<'tcx>> for Resolver<'cx, 'tcx> { self.fcx.tcx } - fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx> { - let tcx = self.fcx.tcx; - match self.fcx.fully_resolve(t) { - Ok(t) if self.fcx.next_trait_solver() => { - // We must normalize erasing regions here, since later lints - // expect that types that show up in the typeck are fully - // normalized. - if let Ok(t) = tcx.try_normalize_erasing_regions(self.fcx.param_env, t) { - t - } else { - tcx.fold_regions(t, |_, _| tcx.lifetimes.re_erased) - } - } - Ok(t) => { - // Do not anonymize late-bound regions - // (e.g. keep `for<'a>` named `for<'a>`). - // This allows NLL to generate error messages that - // refer to the higher-ranked lifetime names written by the user. - tcx.fold_regions(t, |_, _| tcx.lifetimes.re_erased) - } - Err(_) => { - debug!("Resolver::fold_ty: input type `{:?}` not fully resolvable", t); - let e = self.report_error(t); - self.replaced_with_error = Some(e); - Ty::new_error(self.fcx.tcx, e) - } - } - } - fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { debug_assert!(!r.is_bound(), "Should not be resolving bound region."); self.fcx.tcx.lifetimes.re_erased } + fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> { + self.handle_term(ty, Ty::outer_exclusive_binder, Ty::new_error) + } + fn fold_const(&mut self, ct: ty::Const<'tcx>) -> ty::Const<'tcx> { - match self.fcx.fully_resolve(ct) { - Ok(ct) => self.fcx.tcx.erase_regions(ct), - Err(_) => { - debug!("Resolver::fold_const: input const `{:?}` not fully resolvable", ct); - let e = self.report_error(ct); - self.replaced_with_error = Some(e); - ty::Const::new_error(self.fcx.tcx, e, ct.ty()) - } - } + self.handle_term(ct, ty::Const::outer_exclusive_binder, |tcx, guar| { + ty::Const::new_error(tcx, guar, ct.ty()) + }) } -} -/////////////////////////////////////////////////////////////////////////// -// During type check, we store promises with the result of trait -// lookup rather than the actual results (because the results are not -// necessarily available immediately). These routines unwind the -// promises. It is expected that we will have already reported any -// errors that may be encountered, so if the promises store an error, -// a dummy result is returned. + fn fold_predicate(&mut self, predicate: ty::Predicate<'tcx>) -> ty::Predicate<'tcx> { + // Do not normalize predicates in the new solver. The new solver is + // supposed to handle unnormalized predicates and incorrectly normalizing + // them can be unsound, e.g. for `WellFormed` predicates. + let prev = mem::replace(&mut self.should_normalize, false); + let predicate = predicate.super_fold_with(self); + self.should_normalize = prev; + predicate + } +} diff --git a/compiler/rustc_incremental/src/persist/dirty_clean.rs b/compiler/rustc_incremental/src/persist/dirty_clean.rs index 0f2194139df..8a7b97139ea 100644 --- a/compiler/rustc_incremental/src/persist/dirty_clean.rs +++ b/compiler/rustc_incremental/src/persist/dirty_clean.rs @@ -232,7 +232,7 @@ impl<'tcx> DirtyCleanVisitor<'tcx> { /// Return all DepNode labels that should be asserted for this item. /// index=0 is the "name" used for error messages fn auto_labels(&mut self, item_id: LocalDefId, attr: &Attribute) -> (&'static str, Labels) { - let node = self.tcx.hir().get_by_def_id(item_id); + let node = self.tcx.hir_node_by_def_id(item_id); let (name, labels) = match node { HirNode::Item(item) => { match item.kind { diff --git a/compiler/rustc_infer/src/errors/mod.rs b/compiler/rustc_infer/src/errors/mod.rs index 6a220243266..a0768fc7115 100644 --- a/compiler/rustc_infer/src/errors/mod.rs +++ b/compiler/rustc_infer/src/errors/mod.rs @@ -363,9 +363,7 @@ impl AddToDiagnostic for AddLifetimeParamsSuggestion<'_> { return false; }; - let hir_id = self.tcx.local_def_id_to_hir_id(anon_reg.def_id); - - let node = self.tcx.hir().get(hir_id); + let node = self.tcx.hir_node_by_def_id(anon_reg.def_id); let is_impl = matches!(&node, hir::Node::ImplItem(_)); let generics = match node { hir::Node::Item(&hir::Item { diff --git a/compiler/rustc_infer/src/infer/canonical/query_response.rs b/compiler/rustc_infer/src/infer/canonical/query_response.rs index 6860d0de179..8cca4c6231f 100644 --- a/compiler/rustc_infer/src/infer/canonical/query_response.rs +++ b/compiler/rustc_infer/src/infer/canonical/query_response.rs @@ -166,10 +166,7 @@ impl<'tcx> InferCtxt<'tcx> { } fn take_opaque_types_for_query_response(&self) -> Vec<(ty::OpaqueTypeKey<'tcx>, Ty<'tcx>)> { - std::mem::take(&mut self.inner.borrow_mut().opaque_type_storage.opaque_types) - .into_iter() - .map(|(k, v)| (k, v.hidden_type.ty)) - .collect() + self.take_opaque_types().into_iter().map(|(k, v)| (k, v.hidden_type.ty)).collect() } /// Given the (canonicalized) result to a canonical query, diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index 745c3d195ad..c118c405c20 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -891,7 +891,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { } // don't suggest wrapping either blocks in `if .. {} else {}` let is_empty_arm = |id| { - let hir::Node::Block(blk) = self.tcx.hir().get(id) else { + let hir::Node::Block(blk) = self.tcx.hir_node(id) else { return false; }; if blk.expr.is_some() || !blk.stmts.is_empty() { @@ -1743,7 +1743,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { } } - if let Some((expected, found, exp_p, found_p)) = expected_found { + if let Some((expected, found, path)) = expected_found { let (expected_label, found_label, exp_found) = match exp_found { Mismatch::Variable(ef) => ( ef.expected.prefix_string(self.tcx), @@ -1869,40 +1869,31 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { } TypeError::Sorts(values) => { let extra = expected == found; - let sort_string = |ty: Ty<'tcx>, path: Option<PathBuf>| { - let mut s = match (extra, ty.kind()) { - (true, ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. })) => { - let sm = self.tcx.sess.source_map(); - let pos = sm.lookup_char_pos(self.tcx.def_span(*def_id).lo()); - format!( - " (opaque type at <{}:{}:{}>)", - sm.filename_for_diagnostics(&pos.file.name), - pos.line, - pos.col.to_usize() + 1, - ) - } - (true, ty::Alias(ty::Projection, proj)) - if self.tcx.is_impl_trait_in_trait(proj.def_id) => - { - let sm = self.tcx.sess.source_map(); - let pos = sm.lookup_char_pos(self.tcx.def_span(proj.def_id).lo()); - format!( - " (trait associated opaque type at <{}:{}:{}>)", - sm.filename_for_diagnostics(&pos.file.name), - pos.line, - pos.col.to_usize() + 1, - ) - } - (true, _) => format!(" ({})", ty.sort_string(self.tcx)), - (false, _) => "".to_string(), - }; - if let Some(path) = path { - s.push_str(&format!( - "\nthe full type name has been written to '{}'", - path.display(), - )); + let sort_string = |ty: Ty<'tcx>| match (extra, ty.kind()) { + (true, ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. })) => { + let sm = self.tcx.sess.source_map(); + let pos = sm.lookup_char_pos(self.tcx.def_span(*def_id).lo()); + format!( + " (opaque type at <{}:{}:{}>)", + sm.filename_for_diagnostics(&pos.file.name), + pos.line, + pos.col.to_usize() + 1, + ) } - s + (true, ty::Alias(ty::Projection, proj)) + if self.tcx.is_impl_trait_in_trait(proj.def_id) => + { + let sm = self.tcx.sess.source_map(); + let pos = sm.lookup_char_pos(self.tcx.def_span(proj.def_id).lo()); + format!( + " (trait associated opaque type at <{}:{}:{}>)", + sm.filename_for_diagnostics(&pos.file.name), + pos.line, + pos.col.to_usize() + 1, + ) + } + (true, _) => format!(" ({})", ty.sort_string(self.tcx)), + (false, _) => "".to_string(), }; if !(values.expected.is_simple_text(self.tcx) && values.found.is_simple_text(self.tcx)) @@ -1933,9 +1924,15 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { expected, &found_label, found, - &sort_string(values.expected, exp_p), - &sort_string(values.found, found_p), + &sort_string(values.expected), + &sort_string(values.found), ); + if let Some(path) = path { + diag.note(format!( + "the full type name has been written to '{}'", + path.display(), + )); + } } } } @@ -2007,7 +2004,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { diag.span_note(span, "this closure does not fulfill the lifetime requirements"); self.suggest_for_all_lifetime_closure( span, - self.tcx.hir().get_by_def_id(def_id), + self.tcx.hir_node_by_def_id(def_id), &exp_found, diag, ); @@ -2101,7 +2098,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { if let &(MatchExpressionArm(box MatchExpressionArmCause { source, .. }) | BlockTailExpression(.., source)) = code && let hir::MatchSource::TryDesugar(_) = source - && let Some((expected_ty, found_ty, _, _)) = self.values_str(trace.values) + && let Some((expected_ty, found_ty, _)) = self.values_str(trace.values) { suggestions.push(TypeErrorAdditionalDiags::TryCannotConvert { found: found_ty.content(), @@ -2121,7 +2118,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let TypeError::FixedArraySize(sz) = terr else { return None; }; - let tykind = match hir.find_by_def_id(trace.cause.body_id) { + let tykind = match self.tcx.opt_hir_node_by_def_id(trace.cause.body_id) { Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. })) => { let body = hir.body(*body_id); struct LetVisitor<'v> { @@ -2219,8 +2216,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { fn values_str( &self, values: ValuePairs<'tcx>, - ) -> Option<(DiagnosticStyledString, DiagnosticStyledString, Option<PathBuf>, Option<PathBuf>)> - { + ) -> Option<(DiagnosticStyledString, DiagnosticStyledString, Option<PathBuf>)> { match values { infer::Regions(exp_found) => self.expected_found_str(exp_found), infer::Terms(exp_found) => self.expected_found_str_term(exp_found), @@ -2233,7 +2229,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { found: exp_found.found.print_trait_sugared(), }; match self.expected_found_str(pretty_exp_found) { - Some((expected, found, _, _)) if expected == found => { + Some((expected, found, _)) if expected == found => { self.expected_found_str(exp_found) } ret => ret, @@ -2245,7 +2241,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { return None; } let (exp, fnd) = self.cmp_fn_sig(&exp_found.expected, &exp_found.found); - Some((exp, fnd, None, None)) + Some((exp, fnd, None)) } } } @@ -2253,8 +2249,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { fn expected_found_str_term( &self, exp_found: ty::error::ExpectedFound<ty::Term<'tcx>>, - ) -> Option<(DiagnosticStyledString, DiagnosticStyledString, Option<PathBuf>, Option<PathBuf>)> - { + ) -> Option<(DiagnosticStyledString, DiagnosticStyledString, Option<PathBuf>)> { let exp_found = self.resolve_vars_if_possible(exp_found); if exp_found.references_error() { return None; @@ -2269,25 +2264,21 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let len = self.tcx.sess().diagnostic_width() + 40; let exp_s = exp.content(); let fnd_s = fnd.content(); - let mut exp_p = None; - let mut fnd_p = None; + let mut path = None; if exp_s.len() > len { - let (exp_s, exp_path) = self.tcx.short_ty_string(expected); + let exp_s = self.tcx.short_ty_string(expected, &mut path); exp = DiagnosticStyledString::highlighted(exp_s); - exp_p = exp_path; } if fnd_s.len() > len { - let (fnd_s, fnd_path) = self.tcx.short_ty_string(found); + let fnd_s = self.tcx.short_ty_string(found, &mut path); fnd = DiagnosticStyledString::highlighted(fnd_s); - fnd_p = fnd_path; } - (exp, fnd, exp_p, fnd_p) + (exp, fnd, path) } _ => ( DiagnosticStyledString::highlighted(exp_found.expected.to_string()), DiagnosticStyledString::highlighted(exp_found.found.to_string()), None, - None, ), }) } @@ -2296,8 +2287,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { fn expected_found_str<T: fmt::Display + TypeFoldable<TyCtxt<'tcx>>>( &self, exp_found: ty::error::ExpectedFound<T>, - ) -> Option<(DiagnosticStyledString, DiagnosticStyledString, Option<PathBuf>, Option<PathBuf>)> - { + ) -> Option<(DiagnosticStyledString, DiagnosticStyledString, Option<PathBuf>)> { let exp_found = self.resolve_vars_if_possible(exp_found); if exp_found.references_error() { return None; @@ -2307,7 +2297,6 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { DiagnosticStyledString::highlighted(exp_found.expected.to_string()), DiagnosticStyledString::highlighted(exp_found.found.to_string()), None, - None, )) } @@ -2452,7 +2441,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { if !suggs.is_empty() { err.multipart_suggestion_verbose( - format!("{msg}"), + msg, suggs, Applicability::MaybeIncorrect, // Issue #41966 ); @@ -2591,8 +2580,8 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { if let infer::Subtype(ref sup_trace) = sup_origin && let infer::Subtype(ref sub_trace) = sub_origin - && let Some((sup_expected, sup_found, _, _)) = self.values_str(sup_trace.values) - && let Some((sub_expected, sub_found, _, _)) = self.values_str(sub_trace.values) + && let Some((sup_expected, sup_found, _)) = self.values_str(sup_trace.values) + && let Some((sub_expected, sub_found, _)) = self.values_str(sub_trace.values) && sub_expected == sup_expected && sub_found == sup_found { @@ -2997,7 +2986,7 @@ impl<'tcx> InferCtxt<'tcx> { /// Given a [`hir::HirId`] for a block, get the span of its last expression /// or statement, peeling off any inner blocks. pub fn find_block_span_from_hir_id(&self, hir_id: hir::HirId) -> Span { - match self.tcx.hir().get(hir_id) { + match self.tcx.hir_node(hir_id) { hir::Node::Block(blk) => self.find_block_span(blk), // The parser was in a weird state if either of these happen, but // it's better not to panic. diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/find_anon_type.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/find_anon_type.rs index ab928232d74..4f74365d06c 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/find_anon_type.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/find_anon_type.rs @@ -26,8 +26,7 @@ pub fn find_anon_type<'tcx>( br: &ty::BoundRegionKind, ) -> Option<(&'tcx hir::Ty<'tcx>, &'tcx hir::FnSig<'tcx>)> { let anon_reg = tcx.is_suitable_region(region)?; - let hir_id = tcx.local_def_id_to_hir_id(anon_reg.def_id); - let fn_sig = tcx.hir().get(hir_id).fn_sig()?; + let fn_sig = tcx.hir_node_by_def_id(anon_reg.def_id).fn_sig()?; fn_sig .decl diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs index 81154415c1e..01b43f7197d 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs @@ -460,7 +460,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { tcx.hir().trait_impls(trait_did).iter().find_map(|&impl_did| { if let Node::Item(Item { kind: ItemKind::Impl(hir::Impl { self_ty, .. }), .. - }) = tcx.hir().find_by_def_id(impl_did)? + }) = tcx.opt_hir_node_by_def_id(impl_did)? && trait_objects.iter().all(|did| { // FIXME: we should check `self_ty` against the receiver // type in the `UnifyReceiver` context, but for now, use diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/util.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/util.rs index 155c0356025..bfff00b948e 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/util.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/util.rs @@ -50,11 +50,10 @@ pub fn find_param_with_region<'tcx>( let hir = &tcx.hir(); let def_id = id.as_local()?; - let hir_id = tcx.local_def_id_to_hir_id(def_id); // FIXME: use def_kind // Don't perform this on closures - match hir.get(hir_id) { + match tcx.hir_node_by_def_id(def_id) { hir::Node::Expr(&hir::Expr { kind: hir::ExprKind::Closure { .. }, .. }) => { return None; } diff --git a/compiler/rustc_infer/src/infer/error_reporting/note.rs b/compiler/rustc_infer/src/infer/error_reporting/note.rs index fed76cd65cf..362bb816910 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/note.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/note.rs @@ -22,7 +22,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { infer::Subtype(ref trace) => RegionOriginNote::WithRequirement { span: trace.cause.span, requirement: ObligationCauseAsDiagArg(trace.cause.clone()), - expected_found: self.values_str(trace.values).map(|(e, f, _, _)| (e, f)), + expected_found: self.values_str(trace.values).map(|(e, f, _)| (e, f)), } .add_to_diagnostic(err), infer::Reborrow(span) => { diff --git a/compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs b/compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs index b93fe02aaea..afb3c5c1e56 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs @@ -655,7 +655,7 @@ fn foo(&self) -> Self::T { String::new() } // When `body_owner` is an `impl` or `trait` item, look in its associated types for // `expected` and point at it. let parent_id = tcx.hir().get_parent_item(hir_id); - let item = tcx.hir().find_by_def_id(parent_id.def_id); + let item = tcx.opt_hir_node_by_def_id(parent_id.def_id); debug!("expected_projection parent item {:?}", item); diff --git a/compiler/rustc_infer/src/infer/error_reporting/suggest.rs b/compiler/rustc_infer/src/infer/error_reporting/suggest.rs index aa5fe6d3f56..b762778122b 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/suggest.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/suggest.rs @@ -42,7 +42,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { ] .into_iter() .find_map(|(id, ty)| { - let hir::Node::Block(blk) = self.tcx.hir().get(id?) else { return None }; + let hir::Node::Block(blk) = self.tcx.hir_node(id?) else { return None }; self.could_remove_semicolon(blk, ty) }); match remove_semicolon { @@ -62,7 +62,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let mut ret = None; for (id, ty) in [(first_id, second_ty), (second_id, first_ty)] { if let Some(id) = id - && let hir::Node::Block(blk) = self.tcx.hir().get(id) + && let hir::Node::Block(blk) = self.tcx.hir_node(id) && let Some(diag) = self.consider_returning_binding_diag(blk, ty) { ret = Some(diag); diff --git a/compiler/rustc_infer/src/infer/generalize.rs b/compiler/rustc_infer/src/infer/generalize.rs index 4b4017cec57..383f3bdbe23 100644 --- a/compiler/rustc_infer/src/infer/generalize.rs +++ b/compiler/rustc_infer/src/infer/generalize.rs @@ -295,7 +295,7 @@ where ty::Covariant | ty::Contravariant => (), } - let origin = *inner.type_variables().var_origin(vid); + let origin = inner.type_variables().var_origin(vid); let new_var_id = inner.type_variables().new_var(self.for_universe, origin); let u = Ty::new_var(self.tcx(), new_var_id); diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index 3a71251e73d..18231af2bed 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -98,6 +98,8 @@ pub(crate) type UnificationTable<'a, 'tcx, T> = ut::UnificationTable< /// call to `start_snapshot` and `rollback_to`. #[derive(Clone)] pub struct InferCtxtInner<'tcx> { + undo_log: InferCtxtUndoLogs<'tcx>, + /// Cache for projections. /// /// This cache is snapshotted along with the infcx. @@ -162,8 +164,6 @@ pub struct InferCtxtInner<'tcx> { /// that all type inference variables have been bound and so forth. region_obligations: Vec<RegionObligation<'tcx>>, - undo_log: InferCtxtUndoLogs<'tcx>, - /// Caches for opaque type inference. opaque_type_storage: OpaqueTypeStorage<'tcx>, } @@ -171,9 +171,10 @@ pub struct InferCtxtInner<'tcx> { impl<'tcx> InferCtxtInner<'tcx> { fn new() -> InferCtxtInner<'tcx> { InferCtxtInner { + undo_log: InferCtxtUndoLogs::default(), + projection_cache: Default::default(), type_variable_storage: type_variable::TypeVariableStorage::new(), - undo_log: InferCtxtUndoLogs::default(), const_unification_storage: ut::UnificationTableStorage::new(), int_unification_storage: ut::UnificationTableStorage::new(), float_unification_storage: ut::UnificationTableStorage::new(), @@ -783,7 +784,7 @@ impl<'tcx> InferCtxt<'tcx> { pub fn type_var_origin(&self, ty: Ty<'tcx>) -> Option<TypeVariableOrigin> { match *ty.kind() { ty::Infer(ty::TyVar(vid)) => { - Some(*self.inner.borrow_mut().type_variables().var_origin(vid)) + Some(self.inner.borrow_mut().type_variables().var_origin(vid)) } _ => None, } @@ -793,11 +794,11 @@ impl<'tcx> InferCtxt<'tcx> { freshen::TypeFreshener::new(self) } - pub fn unsolved_variables(&self) -> Vec<Ty<'tcx>> { + pub fn unresolved_variables(&self) -> Vec<Ty<'tcx>> { let mut inner = self.inner.borrow_mut(); let mut vars: Vec<Ty<'_>> = inner .type_variables() - .unsolved_variables() + .unresolved_variables() .into_iter() .map(|t| Ty::new_var(self.tcx, t)) .collect(); @@ -1306,12 +1307,7 @@ impl<'tcx> InferCtxt<'tcx> { pub fn region_var_origin(&self, vid: ty::RegionVid) -> RegionVariableOrigin { let mut inner = self.inner.borrow_mut(); let inner = &mut *inner; - inner - .region_constraint_storage - .as_mut() - .expect("regions already resolved") - .with_log(&mut inner.undo_log) - .var_origin(vid) + inner.unwrap_region_constraints().var_origin(vid) } /// Clone the list of variable regions. This is used only during NLL processing diff --git a/compiler/rustc_infer/src/infer/opaque_types.rs b/compiler/rustc_infer/src/infer/opaque_types.rs index 82ab1955053..a492c6bf9bb 100644 --- a/compiler/rustc_infer/src/infer/opaque_types.rs +++ b/compiler/rustc_infer/src/infer/opaque_types.rs @@ -683,8 +683,8 @@ fn may_define_opaque_type(tcx: TyCtxt<'_>, def_id: LocalDefId, opaque_hir_id: hi let res = hir_id == scope; trace!( "may_define_opaque_type(def={:?}, opaque_node={:?}) = {}", - tcx.hir().find(hir_id), - tcx.hir().get(opaque_hir_id), + tcx.opt_hir_node(hir_id), + tcx.hir_node(opaque_hir_id), res ); res diff --git a/compiler/rustc_infer/src/infer/outlives/mod.rs b/compiler/rustc_infer/src/infer/outlives/mod.rs index 0987915f4fd..f7129a5ad89 100644 --- a/compiler/rustc_infer/src/infer/outlives/mod.rs +++ b/compiler/rustc_infer/src/infer/outlives/mod.rs @@ -3,7 +3,7 @@ use self::env::OutlivesEnvironment; use super::region_constraints::RegionConstraintData; use super::{InferCtxt, RegionResolutionError}; use crate::infer::free_regions::RegionRelations; -use crate::infer::lexical_region_resolve::{self, LexicalRegionResolutions}; +use crate::infer::lexical_region_resolve; use rustc_middle::traits::query::OutlivesBound; use rustc_middle::ty; @@ -37,32 +37,6 @@ pub fn explicit_outlives_bounds<'tcx>( } impl<'tcx> InferCtxt<'tcx> { - pub fn skip_region_resolution(&self) { - let (var_infos, _) = { - let mut inner = self.inner.borrow_mut(); - let inner = &mut *inner; - // Note: `inner.region_obligations` may not be empty, because we - // didn't necessarily call `process_registered_region_obligations`. - // This is okay, because that doesn't introduce new vars. - inner - .region_constraint_storage - .take() - .expect("regions already resolved") - .with_log(&mut inner.undo_log) - .into_infos_and_data() - }; - - let lexical_region_resolutions = LexicalRegionResolutions { - values: rustc_index::IndexVec::from_elem_n( - crate::infer::lexical_region_resolve::VarValue::Value(self.tcx.lifetimes.re_erased), - var_infos.len(), - ), - }; - - let old_value = self.lexical_region_resolutions.replace(Some(lexical_region_resolutions)); - assert!(old_value.is_none()); - } - /// Process the region constraints and return any errors that /// result. After this, no more unification operations should be /// done -- or the compiler will panic -- but it is legal to use diff --git a/compiler/rustc_infer/src/infer/resolve.rs b/compiler/rustc_infer/src/infer/resolve.rs index ece30bbba12..f317ccee691 100644 --- a/compiler/rustc_infer/src/infer/resolve.rs +++ b/compiler/rustc_infer/src/infer/resolve.rs @@ -134,7 +134,7 @@ impl<'a, 'tcx> TypeVisitor<TyCtxt<'tcx>> for UnresolvedTypeOrConstFinder<'a, 'tc if let TypeVariableOrigin { kind: TypeVariableOriginKind::TypeParameterDefinition(_, _), span, - } = *ty_vars.var_origin(ty_vid) + } = ty_vars.var_origin(ty_vid) { Some(span) } else { diff --git a/compiler/rustc_infer/src/infer/type_variable.rs b/compiler/rustc_infer/src/infer/type_variable.rs index bd6f905c824..58b8110157b 100644 --- a/compiler/rustc_infer/src/infer/type_variable.rs +++ b/compiler/rustc_infer/src/infer/type_variable.rs @@ -1,4 +1,5 @@ use rustc_hir::def_id::DefId; +use rustc_index::IndexVec; use rustc_middle::ty::{self, Ty, TyVid}; use rustc_span::symbol::Symbol; use rustc_span::Span; @@ -11,14 +12,13 @@ use std::cmp; use std::marker::PhantomData; use std::ops::Range; -use rustc_data_structures::undo_log::{Rollback, UndoLogs}; +use rustc_data_structures::undo_log::Rollback; /// Represents a single undo-able action that affects a type inference variable. #[derive(Clone)] pub(crate) enum UndoLog<'tcx> { EqRelation(sv::UndoLog<ut::Delegate<TyVidEqKey<'tcx>>>), SubRelation(sv::UndoLog<ut::Delegate<ty::TyVid>>), - Values(sv::UndoLog<Delegate>), } /// Convert from a specific kind of undo to the more general UndoLog @@ -35,34 +35,19 @@ impl<'tcx> From<sv::UndoLog<ut::Delegate<ty::TyVid>>> for UndoLog<'tcx> { } } -/// Convert from a specific kind of undo to the more general UndoLog -impl<'tcx> From<sv::UndoLog<Delegate>> for UndoLog<'tcx> { - fn from(l: sv::UndoLog<Delegate>) -> Self { - UndoLog::Values(l) - } -} - -/// Convert from a specific kind of undo to the more general UndoLog -impl<'tcx> From<Instantiate> for UndoLog<'tcx> { - fn from(l: Instantiate) -> Self { - UndoLog::Values(sv::UndoLog::Other(l)) - } -} - impl<'tcx> Rollback<UndoLog<'tcx>> for TypeVariableStorage<'tcx> { fn reverse(&mut self, undo: UndoLog<'tcx>) { match undo { UndoLog::EqRelation(undo) => self.eq_relations.reverse(undo), UndoLog::SubRelation(undo) => self.sub_relations.reverse(undo), - UndoLog::Values(undo) => self.values.reverse(undo), } } } #[derive(Clone)] pub struct TypeVariableStorage<'tcx> { - values: sv::SnapshotVecStorage<Delegate>, - + /// The origins of each type variable. + values: IndexVec<TyVid, TypeVariableData>, /// Two variables are unified in `eq_relations` when we have a /// constraint `?X == ?Y`. This table also stores, for each key, /// the known value. @@ -168,15 +153,10 @@ impl<'tcx> TypeVariableValue<'tcx> { } } -#[derive(Clone)] -pub(crate) struct Instantiate; - -pub(crate) struct Delegate; - impl<'tcx> TypeVariableStorage<'tcx> { pub fn new() -> TypeVariableStorage<'tcx> { TypeVariableStorage { - values: sv::SnapshotVecStorage::new(), + values: Default::default(), eq_relations: ut::UnificationTableStorage::new(), sub_relations: ut::UnificationTableStorage::new(), } @@ -194,6 +174,11 @@ impl<'tcx> TypeVariableStorage<'tcx> { pub(crate) fn eq_relations_ref(&self) -> &ut::UnificationTableStorage<TyVidEqKey<'tcx>> { &self.eq_relations } + + pub(super) fn finalize_rollback(&mut self) { + debug_assert!(self.values.len() >= self.eq_relations.len()); + self.values.truncate(self.eq_relations.len()); + } } impl<'tcx> TypeVariableTable<'_, 'tcx> { @@ -201,8 +186,8 @@ impl<'tcx> TypeVariableTable<'_, 'tcx> { /// /// Note that this function does not return care whether /// `vid` has been unified with something else or not. - pub fn var_origin(&self, vid: ty::TyVid) -> &TypeVariableOrigin { - &self.storage.values.get(vid.as_usize()).origin + pub fn var_origin(&self, vid: ty::TyVid) -> TypeVariableOrigin { + self.storage.values[vid].origin } /// Records that `a == b`, depending on `dir`. @@ -237,11 +222,6 @@ impl<'tcx> TypeVariableTable<'_, 'tcx> { self.eq_relations().probe_value(vid) ); self.eq_relations().union_value(vid, TypeVariableValue::Known { value: ty }); - - // Hack: we only need this so that `types_escaping_snapshot` - // can see what has been unified; see the Delegate impl for - // more details. - self.undo_log.push(Instantiate); } /// Creates a new type variable. @@ -262,14 +242,14 @@ impl<'tcx> TypeVariableTable<'_, 'tcx> { let eq_key = self.eq_relations().new_key(TypeVariableValue::Unknown { universe }); let sub_key = self.sub_relations().new_key(()); - assert_eq!(eq_key.vid, sub_key); + debug_assert_eq!(eq_key.vid, sub_key); - let index = self.values().push(TypeVariableData { origin }); - assert_eq!(eq_key.vid.as_u32(), index as u32); + let index = self.storage.values.push(TypeVariableData { origin }); + debug_assert_eq!(eq_key.vid, index); debug!("new_var(index={:?}, universe={:?}, origin={:?})", eq_key.vid, universe, origin); - eq_key.vid + index } /// Returns the number of type variables created thus far. @@ -330,13 +310,6 @@ impl<'tcx> TypeVariableTable<'_, 'tcx> { } #[inline] - fn values( - &mut self, - ) -> sv::SnapshotVec<Delegate, &mut Vec<TypeVariableData>, &mut InferCtxtUndoLogs<'tcx>> { - self.storage.values.with_log(self.undo_log) - } - - #[inline] fn eq_relations(&mut self) -> super::UnificationTable<'_, 'tcx, TyVidEqKey<'tcx>> { self.storage.eq_relations.with_log(self.undo_log) } @@ -354,16 +327,14 @@ impl<'tcx> TypeVariableTable<'_, 'tcx> { let range = TyVid::from_usize(value_count)..TyVid::from_usize(self.num_vars()); ( range.start..range.end, - (range.start.as_usize()..range.end.as_usize()) - .map(|index| self.storage.values.get(index).origin) - .collect(), + (range.start..range.end).map(|index| self.var_origin(index)).collect(), ) } /// Returns indices of all variables that are not yet /// instantiated. - pub fn unsolved_variables(&mut self) -> Vec<ty::TyVid> { - (0..self.storage.values.len()) + pub fn unresolved_variables(&mut self) -> Vec<ty::TyVid> { + (0..self.num_vars()) .filter_map(|i| { let vid = ty::TyVid::from_usize(i); match self.probe(vid) { @@ -375,26 +346,6 @@ impl<'tcx> TypeVariableTable<'_, 'tcx> { } } -impl sv::SnapshotVecDelegate for Delegate { - type Value = TypeVariableData; - type Undo = Instantiate; - - fn reverse(_values: &mut Vec<TypeVariableData>, _action: Instantiate) { - // We don't actually have to *do* anything to reverse an - // instantiation; the value for a variable is stored in the - // `eq_relations` and hence its rollback code will handle - // it. In fact, we could *almost* just remove the - // `SnapshotVec` entirely, except that we would have to - // reproduce *some* of its logic, since we want to know which - // type variables have been instantiated since the snapshot - // was started, so we can implement `types_escaping_snapshot`. - // - // (If we extended the `UnificationTable` to let us see which - // values have been unified and so forth, that might also - // suffice.) - } -} - /////////////////////////////////////////////////////////////////////////// /// These structs (a newtyped TyVid) are used as the unification key diff --git a/compiler/rustc_infer/src/infer/undo_log.rs b/compiler/rustc_infer/src/infer/undo_log.rs index 5655730518e..be02452d89f 100644 --- a/compiler/rustc_infer/src/infer/undo_log.rs +++ b/compiler/rustc_infer/src/infer/undo_log.rs @@ -32,7 +32,7 @@ pub(crate) enum UndoLog<'tcx> { } macro_rules! impl_from { - ($($ctor: ident ($ty: ty),)*) => { + ($($ctor:ident ($ty:ty),)*) => { $( impl<'tcx> From<$ty> for UndoLog<'tcx> { fn from(x: $ty) -> Self { @@ -50,8 +50,6 @@ impl_from! { TypeVariables(sv::UndoLog<ut::Delegate<type_variable::TyVidEqKey<'tcx>>>), TypeVariables(sv::UndoLog<ut::Delegate<ty::TyVid>>), - TypeVariables(sv::UndoLog<type_variable::Delegate>), - TypeVariables(type_variable::Instantiate), IntUnificationTable(sv::UndoLog<ut::Delegate<ty::IntVid>>), @@ -140,6 +138,8 @@ impl<'tcx> InferCtxtInner<'tcx> { self.reverse(undo); } + self.type_variable_storage.finalize_rollback(); + if self.undo_log.num_open_snapshots == 1 { // After the root snapshot the undo log should be empty. assert!(snapshot.undo_len == 0); diff --git a/compiler/rustc_lint/src/context.rs b/compiler/rustc_lint/src/context.rs index 024e542d4af..0911fa70f97 100644 --- a/compiler/rustc_lint/src/context.rs +++ b/compiler/rustc_lint/src/context.rs @@ -706,9 +706,13 @@ pub trait LintContext { }, BuiltinLintDiagnostics::UnexpectedCfgName((name, name_span), value) => { let possibilities: Vec<Symbol> = sess.parse_sess.check_config.expecteds.keys().copied().collect(); + let is_from_cargo = std::env::var_os("CARGO").is_some(); + let mut is_feature_cfg = name == sym::feature; + if is_feature_cfg && is_from_cargo { + db.help("consider defining some features in `Cargo.toml`"); // Suggest the most probable if we found one - if let Some(best_match) = find_best_match_for_name(&possibilities, name, None) { + } else if let Some(best_match) = find_best_match_for_name(&possibilities, name, None) { if let Some(ExpectedValues::Some(best_match_values)) = sess.parse_sess.check_config.expecteds.get(&best_match) { let mut possibilities = best_match_values.iter() @@ -741,8 +745,8 @@ pub trait LintContext { } else { db.span_suggestion(name_span, "there is a config with a similar name", best_match, Applicability::MaybeIncorrect); } - } else if name == sym::feature && std::env::var_os("CARGO").is_some() { - db.help("consider defining some features in `Cargo.toml`"); + + is_feature_cfg |= best_match == sym::feature; } else if !possibilities.is_empty() { let mut possibilities = possibilities.iter() .map(Symbol::as_str) @@ -756,6 +760,23 @@ pub trait LintContext { // once. db.help_once(format!("expected names are: `{possibilities}`")); } + + let inst = if let Some((value, _value_span)) = value { + let pre = if is_from_cargo { "\\" } else { "" }; + format!("cfg({name}, values({pre}\"{value}{pre}\"))") + } else { + format!("cfg({name})") + }; + + if is_from_cargo { + if !is_feature_cfg { + db.help(format!("consider using a Cargo feature instead or adding `println!(\"cargo:rustc-check-cfg={inst}\");` to the top of a `build.rs`")); + } + db.note("see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration"); + } else { + db.help(format!("to expect this configuration use `--check-cfg={inst}`")); + db.note("see <https://doc.rust-lang.org/nightly/unstable-book/compiler-flags/check-cfg.html> for more information about checking conditional configuration"); + } }, BuiltinLintDiagnostics::UnexpectedCfgValue((name, name_span), value) => { let Some(ExpectedValues::Some(values)) = &sess.parse_sess.check_config.expecteds.get(&name) else { @@ -767,6 +788,7 @@ pub trait LintContext { .copied() .flatten() .collect(); + let is_from_cargo = std::env::var_os("CARGO").is_some(); // Show the full list if all possible values for a given name, but don't do it // for names as the possibilities could be very long @@ -787,6 +809,8 @@ pub trait LintContext { db.span_suggestion(value_span, "there is a expected value with a similar name", format!("\"{best_match}\""), Applicability::MaybeIncorrect); } + } else if name == sym::feature && is_from_cargo { + db.help(format!("consider defining `{name}` as feature in `Cargo.toml`")); } else if let &[first_possibility] = &possibilities[..] { db.span_suggestion(name_span.shrink_to_hi(), "specify a config value", format!(" = \"{first_possibility}\""), Applicability::MaybeIncorrect); } @@ -796,6 +820,27 @@ pub trait LintContext { db.span_suggestion(name_span.shrink_to_hi().to(value_span), "remove the value", "", Applicability::MaybeIncorrect); } } + + let inst = if let Some((value, _value_span)) = value { + let pre = if is_from_cargo { "\\" } else { "" }; + format!("cfg({name}, values({pre}\"{value}{pre}\"))") + } else { + format!("cfg({name})") + }; + + if is_from_cargo { + if name == sym::feature { + if let Some((value, _value_span)) = value { + db.help(format!("consider adding `{value}` as a feature in `Cargo.toml`")); + } + } else { + db.help(format!("consider using a Cargo feature instead or adding `println!(\"cargo:rustc-check-cfg={inst}\");` to the top of a `build.rs`")); + } + db.note("see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration"); + } else { + db.help(format!("to expect this configuration use `--check-cfg={inst}`")); + db.note("see <https://doc.rust-lang.org/nightly/unstable-book/compiler-flags/check-cfg.html> for more information about checking conditional configuration"); + } }, BuiltinLintDiagnostics::DeprecatedWhereclauseLocation(new_span, suggestion) => { db.multipart_suggestion( diff --git a/compiler/rustc_lint/src/internal.rs b/compiler/rustc_lint/src/internal.rs index 823ede1222c..53d99c7f7f3 100644 --- a/compiler/rustc_lint/src/internal.rs +++ b/compiler/rustc_lint/src/internal.rs @@ -34,7 +34,7 @@ declare_lint_pass!(DefaultHashTypes => [DEFAULT_HASH_TYPES]); impl LateLintPass<'_> for DefaultHashTypes { fn check_path(&mut self, cx: &LateContext<'_>, path: &Path<'_>, hir_id: HirId) { let Res::Def(rustc_hir::def::DefKind::Struct, def_id) = path.res else { return }; - if matches!(cx.tcx.hir().get(hir_id), Node::Item(Item { kind: ItemKind::Use(..), .. })) { + if matches!(cx.tcx.hir_node(hir_id), Node::Item(Item { kind: ItemKind::Use(..), .. })) { // don't lint imports, only actual usages return; } diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index 810d691d16a..6dade43a183 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -202,7 +202,7 @@ fn lint_overflowing_range_endpoint<'tcx>( ) -> bool { // Look past casts to support cases like `0..256 as u8` let (expr, lit_span) = if let Node::Expr(par_expr) = - cx.tcx.hir().get(cx.tcx.hir().parent_id(expr.hir_id)) + cx.tcx.hir_node(cx.tcx.hir().parent_id(expr.hir_id)) && let ExprKind::Cast(_, _) = par_expr.kind { (par_expr, expr.span) @@ -213,7 +213,7 @@ fn lint_overflowing_range_endpoint<'tcx>( // We only want to handle exclusive (`..`) ranges, // which are represented as `ExprKind::Struct`. let par_id = cx.tcx.hir().parent_id(expr.hir_id); - let Node::ExprField(field) = cx.tcx.hir().get(par_id) else { return false }; + let Node::ExprField(field) = cx.tcx.hir_node(par_id) else { return false }; let Node::Expr(struct_expr) = cx.tcx.hir().get_parent(field.hir_id) else { return false }; if !is_range_literal(struct_expr) { return false; @@ -498,7 +498,7 @@ fn lint_uint_literal<'tcx>( }; if lit_val < min || lit_val > max { let parent_id = cx.tcx.hir().parent_id(e.hir_id); - if let Node::Expr(par_e) = cx.tcx.hir().get(parent_id) { + if let Node::Expr(par_e) = cx.tcx.hir_node(parent_id) { match par_e.kind { hir::ExprKind::Cast(..) => { if let ty::Char = cx.typeck_results().expr_ty(par_e).kind() { diff --git a/compiler/rustc_lint_defs/src/lib.rs b/compiler/rustc_lint_defs/src/lib.rs index de0abe04611..a25cfe68e0d 100644 --- a/compiler/rustc_lint_defs/src/lib.rs +++ b/compiler/rustc_lint_defs/src/lib.rs @@ -345,12 +345,34 @@ pub struct FutureIncompatibleInfo { } /// The reason for future incompatibility +/// +/// Future-incompatible lints come in roughly two categories: +/// +/// 1. There was a mistake in the compiler (such as a soundness issue), and +/// we're trying to fix it, but it may be a breaking change. +/// 2. A change across an Edition boundary, typically used for the +/// introduction of new language features that can't otherwise be +/// introduced in a backwards-compatible way. +/// +/// See <https://rustc-dev-guide.rust-lang.org/bug-fix-procedure.html> and +/// <https://rustc-dev-guide.rust-lang.org/diagnostics.html#future-incompatible-lints> +/// for more information. #[derive(Copy, Clone, Debug)] pub enum FutureIncompatibilityReason { /// This will be an error in a future release for all editions /// /// This will *not* show up in cargo's future breakage report. /// The warning will hence only be seen in local crates, not in dependencies. + /// + /// Choose this variant when you are first introducing a "future + /// incompatible" warning that is intended to eventually be fixed in the + /// future. This allows crate developers an opportunity to fix the warning + /// before blasting all dependents with a warning they can't fix + /// (dependents have to wait for a new release of the affected crate to be + /// published). + /// + /// After a lint has been in this state for a while, consider graduating + /// it to [`FutureIncompatibilityReason::FutureReleaseErrorReportInDeps`]. FutureReleaseErrorDontReportInDeps, /// This will be an error in a future release, and /// Cargo should create a report even for dependencies @@ -358,17 +380,62 @@ pub enum FutureIncompatibilityReason { /// This is the *only* reason that will make future incompatibility warnings show up in cargo's /// reports. All other future incompatibility warnings are not visible when they occur in a /// dependency. + /// + /// Choose this variant after the lint has been sitting in the + /// [`FutureIncompatibilityReason::FutureReleaseErrorDontReportInDeps`] + /// state for a while, and you feel like it is ready to graduate to + /// warning everyone. It is a good signal that it is ready if you can + /// determine that all or most affected crates on crates.io have been + /// updated. + /// + /// After some period of time, lints with this variant can be turned into + /// hard errors (and the lint removed). Preferably when there is some + /// confidence that the number of impacted projects is very small (few + /// should have a broken dependency in their dependency tree). FutureReleaseErrorReportInDeps, /// Code that changes meaning in some way in a /// future release. + /// + /// Choose this variant when the semantics of existing code is changing, + /// (as opposed to + /// [`FutureIncompatibilityReason::FutureReleaseErrorDontReportInDeps`], + /// which is for when code is going to be rejected in the future). FutureReleaseSemanticsChange, /// Previously accepted code that will become an /// error in the provided edition + /// + /// Choose this variant for code that you want to start rejecting across + /// an edition boundary. This will automatically include the lint in the + /// `rust-20xx-compatibility` lint group, which is used by `cargo fix + /// --edition` to do migrations. The lint *should* be auto-fixable with + /// [`Applicability::MachineApplicable`]. + /// + /// The lint can either be `Allow` or `Warn` by default. If it is `Allow`, + /// users usually won't see this warning unless they are doing an edition + /// migration manually or there is a problem during the migration (cargo's + /// automatic migrations will force the level to `Warn`). If it is `Warn` + /// by default, users on all editions will see this warning (only do this + /// if you think it is important for everyone to be aware of the change, + /// and to encourage people to update their code on all editions). + /// + /// See also [`FutureIncompatibilityReason::EditionSemanticsChange`] if + /// you have code that is changing semantics across the edition (as + /// opposed to being rejected). EditionError(Edition), /// Code that changes meaning in some way in /// the provided edition + /// + /// This is the same as [`FutureIncompatibilityReason::EditionError`], + /// except for situations where the semantics change across an edition. It + /// slightly changes the text of the diagnostic, but is otherwise the + /// same. EditionSemanticsChange(Edition), /// A custom reason. + /// + /// Choose this variant if the built-in text of the diagnostic of the + /// other variants doesn't match your situation. This is behaviorally + /// equivalent to + /// [`FutureIncompatibilityReason::FutureReleaseErrorDontReportInDeps`]. Custom(&'static str), } diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp index 2601d96b8c8..556dc890a84 100644 --- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp @@ -37,7 +37,9 @@ #include "llvm/Transforms/Utils/FunctionImportUtils.h" #include "llvm/LTO/LTO.h" #include "llvm/Bitcode/BitcodeWriter.h" - +#if LLVM_VERSION_GE(18, 0) +#include "llvm/TargetParser/Host.h" +#endif #include "llvm/Transforms/Instrumentation.h" #include "llvm/Transforms/Instrumentation/AddressSanitizer.h" #include "llvm/Support/TimeProfiler.h" diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp index b227dd76f02..0df7b7eed11 100644 --- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp @@ -697,6 +697,25 @@ static DICompileUnit::DebugEmissionKind fromRust(LLVMRustDebugEmissionKind Kind) } } +enum class LLVMRustDebugNameTableKind { + Default, + GNU, + None, +}; + +static DICompileUnit::DebugNameTableKind fromRust(LLVMRustDebugNameTableKind Kind) { + switch (Kind) { + case LLVMRustDebugNameTableKind::Default: + return DICompileUnit::DebugNameTableKind::Default; + case LLVMRustDebugNameTableKind::GNU: + return DICompileUnit::DebugNameTableKind::GNU; + case LLVMRustDebugNameTableKind::None: + return DICompileUnit::DebugNameTableKind::None; + default: + report_fatal_error("bad DebugNameTableKind."); + } +} + enum class LLVMRustChecksumKind { None, MD5, @@ -765,13 +784,15 @@ extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateCompileUnit( const char *Flags, unsigned RuntimeVer, const char *SplitName, size_t SplitNameLen, LLVMRustDebugEmissionKind Kind, - uint64_t DWOId, bool SplitDebugInlining) { + uint64_t DWOId, bool SplitDebugInlining, + LLVMRustDebugNameTableKind TableKind) { auto *File = unwrapDI<DIFile>(FileRef); return wrap(Builder->createCompileUnit(Lang, File, StringRef(Producer, ProducerLen), isOptimized, Flags, RuntimeVer, StringRef(SplitName, SplitNameLen), - fromRust(Kind), DWOId, SplitDebugInlining)); + fromRust(Kind), DWOId, SplitDebugInlining, + false, fromRust(TableKind))); } extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateFile( diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index 143e439bd57..ad3fea65e82 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -1144,7 +1144,7 @@ fn should_encode_type(tcx: TyCtxt<'_>, def_id: LocalDefId, def_kind: DefKind) -> let origin = tcx.opaque_type_origin(def_id); if let hir::OpaqueTyOrigin::FnReturn(fn_def_id) | hir::OpaqueTyOrigin::AsyncFn(fn_def_id) = origin - && let hir::Node::TraitItem(trait_item) = tcx.hir().get_by_def_id(fn_def_id) + && let hir::Node::TraitItem(trait_item) = tcx.hir_node_by_def_id(fn_def_id) && let (_, hir::TraitFn::Required(..)) = trait_item.expect_fn() { false @@ -1161,7 +1161,7 @@ fn should_encode_type(tcx: TyCtxt<'_>, def_id: LocalDefId, def_kind: DefKind) -> } } DefKind::TyParam => { - let hir::Node::GenericParam(param) = tcx.hir().get_by_def_id(def_id) else { bug!() }; + let hir::Node::GenericParam(param) = tcx.hir_node_by_def_id(def_id) else { bug!() }; let hir::GenericParamKind::Type { default, .. } = param.kind else { bug!() }; default.is_some() } @@ -1372,7 +1372,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { // anonymous constants will not work on them and panic. It's not clear whether it // can cause any observable issues or not. let anon_const_without_hir = def_kind == DefKind::AnonConst - && tcx.hir().find(tcx.local_def_id_to_hir_id(local_id)).is_none(); + && tcx.opt_hir_node(tcx.local_def_id_to_hir_id(local_id)).is_none(); if should_encode_generics(def_kind) && !anon_const_without_hir { let g = tcx.generics_of(def_id); record!(self.tables.generics_of[def_id] <- g); diff --git a/compiler/rustc_middle/src/arena.rs b/compiler/rustc_middle/src/arena.rs index 9b41b77928e..52fd494a10d 100644 --- a/compiler/rustc_middle/src/arena.rs +++ b/compiler/rustc_middle/src/arena.rs @@ -92,10 +92,6 @@ macro_rules! arena_types { [] name_set: rustc_data_structures::unord::UnordSet<rustc_span::symbol::Symbol>, [] ordered_name_set: rustc_data_structures::fx::FxIndexSet<rustc_span::symbol::Symbol>, - // Interned types - [] tys: rustc_type_ir::WithCachedTypeInfo<rustc_middle::ty::TyKind<'tcx>>, - [] consts: rustc_type_ir::WithCachedTypeInfo<rustc_middle::ty::ConstData<'tcx>>, - // Note that this deliberately duplicates items in the `rustc_hir::arena`, // since we need to allocate this type on both the `rustc_hir` arena // (during lowering) and the `librustc_middle` arena (for decoding MIR) diff --git a/compiler/rustc_middle/src/hir/map/mod.rs b/compiler/rustc_middle/src/hir/map/mod.rs index 4af886a9718..598c26de23f 100644 --- a/compiler/rustc_middle/src/hir/map/mod.rs +++ b/compiler/rustc_middle/src/hir/map/mod.rs @@ -57,6 +57,10 @@ fn is_body_owner(node: Node<'_>, hir_id: HirId) -> bool { } } +// FIXME: the structure was necessary in the past but now it +// only serves as "namespace" for HIR-related methods, and can be +// removed if all the methods are reasonably renamed and moved to tcx +// (https://github.com/rust-lang/rust/pull/118256#issuecomment-1826442834). #[derive(Copy, Clone)] pub struct Map<'hir> { pub(super) tcx: TyCtxt<'hir>, @@ -128,6 +132,40 @@ impl<'hir> Iterator for ParentOwnerIterator<'hir> { } } +impl<'tcx> TyCtxt<'tcx> { + /// Retrieves the `hir::Node` corresponding to `id`, returning `None` if cannot be found. + pub fn opt_hir_node(self, id: HirId) -> Option<Node<'tcx>> { + if id.local_id == ItemLocalId::from_u32(0) { + let owner = self.hir_owner(id.owner)?; + Some(owner.node.into()) + } else { + let owner = self.hir_owner_nodes(id.owner).as_owner()?; + let node = owner.nodes[id.local_id].as_ref()?; + Some(node.node) + } + } + + /// Retrieves the `hir::Node` corresponding to `id`, returning `None` if cannot be found. + #[inline] + pub fn opt_hir_node_by_def_id(self, id: LocalDefId) -> Option<Node<'tcx>> { + self.opt_hir_node(self.opt_local_def_id_to_hir_id(id)?) + } + + /// Retrieves the `hir::Node` corresponding to `id`, panicking if it cannot be found. + #[track_caller] + pub fn hir_node(self, id: HirId) -> Node<'tcx> { + self.opt_hir_node(id).unwrap_or_else(|| bug!("couldn't find HIR node for hir id {id:?}")) + } + + /// Retrieves the `hir::Node` corresponding to `id`, panicking if it cannot be found. + #[inline] + #[track_caller] + pub fn hir_node_by_def_id(self, id: LocalDefId) -> Node<'tcx> { + self.opt_hir_node_by_def_id(id) + .unwrap_or_else(|| bug!("couldn't find HIR node for def id {id:?}")) + } +} + impl<'hir> Map<'hir> { #[inline] pub fn krate(self) -> &'hir Crate<'hir> { @@ -191,46 +229,15 @@ impl<'hir> Map<'hir> { } pub fn get_parent(self, hir_id: HirId) -> Node<'hir> { - self.get(self.parent_id(hir_id)) + self.tcx.hir_node(self.parent_id(hir_id)) } pub fn find_parent(self, hir_id: HirId) -> Option<Node<'hir>> { - self.find(self.opt_parent_id(hir_id)?) - } - - /// Retrieves the `Node` corresponding to `id`, returning `None` if cannot be found. - pub fn find(self, id: HirId) -> Option<Node<'hir>> { - if id.local_id == ItemLocalId::from_u32(0) { - let owner = self.tcx.hir_owner(id.owner)?; - Some(owner.node.into()) - } else { - let owner = self.tcx.hir_owner_nodes(id.owner).as_owner()?; - let node = owner.nodes[id.local_id].as_ref()?; - Some(node.node) - } - } - - /// Retrieves the `Node` corresponding to `id`, returning `None` if cannot be found. - #[inline] - pub fn find_by_def_id(self, id: LocalDefId) -> Option<Node<'hir>> { - self.find(self.tcx.opt_local_def_id_to_hir_id(id)?) - } - - /// Retrieves the `Node` corresponding to `id`, panicking if it cannot be found. - #[track_caller] - pub fn get(self, id: HirId) -> Node<'hir> { - self.find(id).unwrap_or_else(|| bug!("couldn't find hir id {} in the HIR map", id)) - } - - /// Retrieves the `Node` corresponding to `id`, panicking if it cannot be found. - #[inline] - #[track_caller] - pub fn get_by_def_id(self, id: LocalDefId) -> Node<'hir> { - self.find_by_def_id(id).unwrap_or_else(|| bug!("couldn't find {:?} in the HIR map", id)) + self.tcx.opt_hir_node(self.opt_parent_id(hir_id)?) } pub fn get_if_local(self, id: DefId) -> Option<Node<'hir>> { - id.as_local().and_then(|id| self.find(self.tcx.opt_local_def_id_to_hir_id(id)?)) + id.as_local().and_then(|id| self.tcx.opt_hir_node(self.tcx.opt_local_def_id_to_hir_id(id)?)) } pub fn get_generics(self, id: LocalDefId) -> Option<&'hir Generics<'hir>> { @@ -264,7 +271,7 @@ impl<'hir> Map<'hir> { #[track_caller] pub fn fn_decl_by_hir_id(self, hir_id: HirId) -> Option<&'hir FnDecl<'hir>> { - if let Some(node) = self.find(hir_id) { + if let Some(node) = self.tcx.opt_hir_node(hir_id) { node.fn_decl() } else { bug!("no node for hir_id `{}`", hir_id) @@ -273,7 +280,7 @@ impl<'hir> Map<'hir> { #[track_caller] pub fn fn_sig_by_hir_id(self, hir_id: HirId) -> Option<&'hir FnSig<'hir>> { - if let Some(node) = self.find(hir_id) { + if let Some(node) = self.tcx.opt_hir_node(hir_id) { node.fn_sig() } else { bug!("no node for hir_id `{}`", hir_id) @@ -296,19 +303,22 @@ impl<'hir> Map<'hir> { /// item (possibly associated), a closure, or a `hir::AnonConst`. pub fn body_owner(self, BodyId { hir_id }: BodyId) -> HirId { let parent = self.parent_id(hir_id); - assert!(self.find(parent).is_some_and(|n| is_body_owner(n, hir_id)), "{hir_id:?}"); + assert!( + self.tcx.opt_hir_node(parent).is_some_and(|n| is_body_owner(n, hir_id)), + "{hir_id:?}" + ); parent } pub fn body_owner_def_id(self, BodyId { hir_id }: BodyId) -> LocalDefId { let parent = self.parent_id(hir_id); - associated_body(self.get(parent)).unwrap().0 + associated_body(self.tcx.hir_node(parent)).unwrap().0 } /// Given a `LocalDefId`, returns the `BodyId` associated with it, /// if the node is a body owner, otherwise returns `None`. pub fn maybe_body_owned_by(self, id: LocalDefId) -> Option<BodyId> { - let node = self.find_by_def_id(id)?; + let node = self.tcx.opt_hir_node_by_def_id(id)?; let (_, body_id) = associated_body(node)?; Some(body_id) } @@ -548,7 +558,7 @@ impl<'hir> Map<'hir> { /// until the crate root is reached. Prefer this over your own loop using `parent_id`. #[inline] pub fn parent_iter(self, current_id: HirId) -> impl Iterator<Item = (HirId, Node<'hir>)> { - self.parent_id_iter(current_id).filter_map(move |id| Some((id, self.find(id)?))) + self.parent_id_iter(current_id).filter_map(move |id| Some((id, self.tcx.opt_hir_node(id)?))) } /// Returns an iterator for the nodes in the ancestor tree of the `current_id` @@ -600,7 +610,7 @@ impl<'hir> Map<'hir> { pub fn get_return_block(self, id: HirId) -> Option<HirId> { let mut iter = self.parent_iter(id).peekable(); let mut ignore_tail = false; - if let Some(Node::Expr(Expr { kind: ExprKind::Ret(_), .. })) = self.find(id) { + if let Some(Node::Expr(Expr { kind: ExprKind::Ret(_), .. })) = self.tcx.opt_hir_node(id) { // When dealing with `return` statements, we don't care about climbing only tail // expressions. ignore_tail = true; @@ -708,7 +718,7 @@ impl<'hir> Map<'hir> { let mut scope = id; loop { scope = self.get_enclosing_scope(scope).unwrap_or(CRATE_HIR_ID); - if scope == CRATE_HIR_ID || !matches!(self.get(scope), Node::Block(_)) { + if scope == CRATE_HIR_ID || !matches!(self.tcx.hir_node(scope), Node::Block(_)) { return scope; } } @@ -764,7 +774,7 @@ impl<'hir> Map<'hir> { } pub fn expect_variant(self, id: HirId) -> &'hir Variant<'hir> { - match self.find(id) { + match self.tcx.opt_hir_node(id) { Some(Node::Variant(variant)) => variant, _ => bug!("expected variant, found {}", self.node_to_string(id)), } @@ -783,7 +793,7 @@ impl<'hir> Map<'hir> { } pub fn expect_expr(self, id: HirId) -> &'hir Expr<'hir> { - match self.find(id) { + match self.tcx.opt_hir_node(id) { Some(Node::Expr(expr)) => expr, _ => bug!("expected expr, found {}", self.node_to_string(id)), } @@ -791,7 +801,7 @@ impl<'hir> Map<'hir> { #[inline] fn opt_ident(self, id: HirId) -> Option<Ident> { - match self.find(id)? { + match self.tcx.opt_hir_node(id)? { Node::Pat(&Pat { kind: PatKind::Binding(_, _, ident, _), .. }) => Some(ident), // A `Ctor` doesn't have an identifier itself, but its parent // struct/variant does. Compare with `hir::Map::opt_span`. @@ -860,7 +870,7 @@ impl<'hir> Map<'hir> { } } - let span = match self.find(hir_id)? { + let span = match self.tcx.opt_hir_node(hir_id)? { // Function-like. Node::Item(Item { kind: ItemKind::Fn(sig, ..), span: outer_span, .. }) | Node::TraitItem(TraitItem { @@ -950,7 +960,7 @@ impl<'hir> Map<'hir> { /// Like `hir.span()`, but includes the body of items /// (instead of just the item header) pub fn span_with_body(self, hir_id: HirId) -> Span { - match self.get(hir_id) { + match self.tcx.hir_node(hir_id) { Node::Param(param) => param.span, Node::Item(item) => item.span, Node::ForeignItem(foreign_item) => foreign_item.span, @@ -1045,7 +1055,7 @@ impl<'hir> Map<'hir> { impl<'hir> intravisit::Map<'hir> for Map<'hir> { fn find(&self, hir_id: HirId) -> Option<Node<'hir>> { - (*self).find(hir_id) + self.tcx.opt_hir_node(hir_id) } fn body(&self, id: BodyId) -> &'hir Body<'hir> { @@ -1159,7 +1169,7 @@ fn hir_id_to_string(map: Map<'_>, id: HirId) -> String { let span_str = || map.tcx.sess.source_map().span_to_snippet(map.span(id)).unwrap_or_default(); let node_str = |prefix| format!("{id} ({prefix} `{}`)", span_str()); - match map.find(id) { + match map.tcx.opt_hir_node(id) { Some(Node::Item(item)) => { let item_str = match item.kind { ItemKind::ExternCrate(..) => "extern crate", diff --git a/compiler/rustc_middle/src/hir/mod.rs b/compiler/rustc_middle/src/hir/mod.rs index a16317a0c67..af99c7d55c3 100644 --- a/compiler/rustc_middle/src/hir/mod.rs +++ b/compiler/rustc_middle/src/hir/mod.rs @@ -195,7 +195,7 @@ pub fn provide(providers: &mut Providers) { | Node::ForeignItem(&ForeignItem { kind: ForeignItemKind::Fn(_, idents, _), .. - }) = hir.get(hir_id) + }) = tcx.hir_node(hir_id) { idents } else { diff --git a/compiler/rustc_middle/src/middle/region.rs b/compiler/rustc_middle/src/middle/region.rs index 30f13afff9a..3f6dc2b9f12 100644 --- a/compiler/rustc_middle/src/middle/region.rs +++ b/compiler/rustc_middle/src/middle/region.rs @@ -180,7 +180,7 @@ impl Scope { }; let span = tcx.hir().span(hir_id); if let ScopeData::Remainder(first_statement_index) = self.data { - if let Node::Block(blk) = tcx.hir().get(hir_id) { + if let Node::Block(blk) = tcx.hir_node(hir_id) { // Want span for scope starting after the // indexed statement and ending at end of // `blk`; reuse span of `blk` and shift `lo` diff --git a/compiler/rustc_middle/src/middle/stability.rs b/compiler/rustc_middle/src/middle/stability.rs index 27d82f5fefc..564a1fad14d 100644 --- a/compiler/rustc_middle/src/middle/stability.rs +++ b/compiler/rustc_middle/src/middle/stability.rs @@ -219,7 +219,7 @@ fn late_report_deprecation( } let method_span = method_span.unwrap_or(span); tcx.struct_span_lint_hir(lint, hir_id, method_span, message, |diag| { - if let hir::Node::Expr(_) = tcx.hir().get(hir_id) { + if let hir::Node::Expr(_) = tcx.hir_node(hir_id) { let kind = tcx.def_descr(def_id); deprecation_suggestion(diag, kind, suggestion, method_span); } diff --git a/compiler/rustc_middle/src/ty/consts.rs b/compiler/rustc_middle/src/ty/consts.rs index 293df4f691d..a3fa568114f 100644 --- a/compiler/rustc_middle/src/ty/consts.rs +++ b/compiler/rustc_middle/src/ty/consts.rs @@ -30,7 +30,7 @@ impl<'tcx> IntoKind for Const<'tcx> { type Kind = ConstKind<'tcx>; fn kind(self) -> ConstKind<'tcx> { - self.kind().clone() + self.kind() } } @@ -41,7 +41,8 @@ impl<'tcx> ConstTy<TyCtxt<'tcx>> for Const<'tcx> { } /// Typed constant value. -#[derive(PartialEq, Eq, PartialOrd, Ord, Hash, HashStable, TyEncodable, TyDecodable)] +#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] +#[derive(HashStable, TyEncodable, TyDecodable)] pub struct ConstData<'tcx> { pub ty: Ty<'tcx>, pub kind: ConstKind<'tcx>, @@ -166,7 +167,7 @@ impl<'tcx> Const<'tcx> { /// becomes `Unevaluated`. #[instrument(skip(tcx), level = "debug")] pub fn from_anon_const(tcx: TyCtxt<'tcx>, def: LocalDefId) -> Self { - let body_id = match tcx.hir().get_by_def_id(def) { + let body_id = match tcx.hir_node_by_def_id(def) { hir::Node::AnonConst(ac) => ac.body, _ => span_bug!( tcx.def_span(def.to_def_id()), @@ -442,7 +443,7 @@ impl<'tcx> Const<'tcx> { } pub fn const_param_default(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<Const<'_>> { - let default_def_id = match tcx.hir().get_by_def_id(def_id) { + let default_def_id = match tcx.hir_node_by_def_id(def_id) { hir::Node::GenericParam(hir::GenericParam { kind: hir::GenericParamKind::Const { default: Some(ac), .. }, .. diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index eb6fde83fcc..d027a193f63 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -1174,7 +1174,7 @@ impl<'tcx> TyCtxt<'tcx> { break (scope, ty::BrNamed(def_id.into(), self.item_name(def_id.into()))); }; - let is_impl_item = match self.hir().find_by_def_id(suitable_region_binding_scope) { + let is_impl_item = match self.opt_hir_node_by_def_id(suitable_region_binding_scope) { Some(Node::Item(..) | Node::TraitItem(..)) => false, Some(Node::ImplItem(..)) => { self.is_bound_region_in_impl_item(suitable_region_binding_scope) @@ -1217,8 +1217,8 @@ impl<'tcx> TyCtxt<'tcx> { None, hir::Path { res: hir::def::Res::Def(DefKind::TyAlias, def_id), .. }, )) = hir_output.kind && let Some(local_id) = def_id.as_local() - && let Some(alias_ty) = self.hir().get_by_def_id(local_id).alias_ty() // it is type alias - && let Some(alias_generics) = self.hir().get_by_def_id(local_id).generics() + && let Some(alias_ty) = self.hir_node_by_def_id(local_id).alias_ty() // it is type alias + && let Some(alias_generics) = self.hir_node_by_def_id(local_id).generics() { v.visit_ty(alias_ty); if !v.0.is_empty() { @@ -2137,7 +2137,7 @@ impl<'tcx> TyCtxt<'tcx> { loop { let parent = self.local_parent(rpit_lifetime_param_def_id); let hir::OpaqueTy { lifetime_mapping, .. } = - self.hir().get_by_def_id(parent).expect_item().expect_opaque_ty(); + self.hir_node_by_def_id(parent).expect_item().expect_opaque_ty(); let Some((lifetime, _)) = lifetime_mapping .iter() @@ -2221,8 +2221,7 @@ impl<'tcx> TyCtxt<'tcx> { /// Whether the trait impl is marked const. This does not consider stability or feature gates. pub fn is_const_trait_impl_raw(self, def_id: DefId) -> bool { let Some(local_def_id) = def_id.as_local() else { return false }; - let hir_id = self.local_def_id_to_hir_id(local_def_id); - let node = self.hir().get(hir_id); + let node = self.hir_node_by_def_id(local_def_id); matches!( node, diff --git a/compiler/rustc_middle/src/ty/error.rs b/compiler/rustc_middle/src/ty/error.rs index 469593fe663..0e44878524b 100644 --- a/compiler/rustc_middle/src/ty/error.rs +++ b/compiler/rustc_middle/src/ty/error.rs @@ -345,33 +345,35 @@ impl<'tcx> TyCtxt<'tcx> { short } - pub fn short_ty_string(self, ty: Ty<'tcx>) -> (String, Option<PathBuf>) { + pub fn short_ty_string(self, ty: Ty<'tcx>, path: &mut Option<PathBuf>) -> String { let regular = FmtPrinter::print_string(self, hir::def::Namespace::TypeNS, |cx| { cx.pretty_print_type(ty) }) .expect("could not write to `String`"); if !self.sess.opts.unstable_opts.write_long_types_to_disk { - return (regular, None); + return regular; } let width = self.sess.diagnostic_width(); let length_limit = width.saturating_sub(30); if regular.len() <= width { - return (regular, None); + return regular; } let short = self.ty_string_with_limit(ty, length_limit); if regular == short { - return (regular, None); + return regular; } - // Multiple types might be shortened in a single error, ensure we create a file for each. + // Ensure we create an unique file for the type passed in when we create a file. let mut s = DefaultHasher::new(); ty.hash(&mut s); let hash = s.finish(); - let path = self.output_filenames(()).temp_path_ext(&format!("long-type-{hash}.txt"), None); - match std::fs::write(&path, ®ular) { - Ok(_) => (short, Some(path)), - Err(_) => (regular, None), + *path = Some(path.take().unwrap_or_else(|| { + self.output_filenames(()).temp_path_ext(&format!("long-type-{hash}.txt"), None) + })); + match std::fs::write(path.as_ref().unwrap(), &format!("{regular}\n")) { + Ok(_) => short, + Err(_) => regular, } } } diff --git a/compiler/rustc_middle/src/values.rs b/compiler/rustc_middle/src/values.rs index 8ccd3c1aba0..3224f2f26df 100644 --- a/compiler/rustc_middle/src/values.rs +++ b/compiler/rustc_middle/src/values.rs @@ -154,8 +154,9 @@ pub fn recursive_type_error( let (_, field_id) = item_and_field_ids[i]; let (next_item_id, _) = item_and_field_ids[(i + 1) % cycle_len]; // Find the span(s) that contain the next item in the cycle - let hir_id = tcx.local_def_id_to_hir_id(field_id); - let hir::Node::Field(field) = tcx.hir().get(hir_id) else { bug!("expected field") }; + let hir::Node::Field(field) = tcx.hir_node_by_def_id(field_id) else { + bug!("expected field") + }; let mut found = Vec::new(); find_item_ty_spans(tcx, field.ty, next_item_id, &mut found, representable_ids); diff --git a/compiler/rustc_mir_build/src/build/mod.rs b/compiler/rustc_mir_build/src/build/mod.rs index 19b6496b102..c63c7987f5e 100644 --- a/compiler/rustc_mir_build/src/build/mod.rs +++ b/compiler/rustc_mir_build/src/build/mod.rs @@ -572,7 +572,7 @@ fn construct_const<'a, 'tcx>( let hir_id = tcx.local_def_id_to_hir_id(def); // Figure out what primary body this item has. - let (span, const_ty_span) = match tcx.hir().get(hir_id) { + let (span, const_ty_span) = match tcx.hir_node(hir_id) { Node::Item(hir::Item { kind: hir::ItemKind::Static(ty, _, _) | hir::ItemKind::Const(ty, _, _), span, diff --git a/compiler/rustc_mir_build/src/thir/cx/mod.rs b/compiler/rustc_mir_build/src/thir/cx/mod.rs index 4eba7103c0c..fa3dd2afa85 100644 --- a/compiler/rustc_mir_build/src/thir/cx/mod.rs +++ b/compiler/rustc_mir_build/src/thir/cx/mod.rs @@ -110,7 +110,7 @@ impl<'tcx> Cx<'tcx> { #[instrument(level = "debug", skip(self))] fn pattern_from_hir(&mut self, p: &hir::Pat<'_>) -> Box<Pat<'tcx>> { - let p = match self.tcx.hir().get(p.hir_id) { + let p = match self.tcx.hir_node(p.hir_id) { Node::Pat(p) => p, node => bug!("pattern became {:?}", node), }; diff --git a/compiler/rustc_mir_build/src/thir/pattern/mod.rs b/compiler/rustc_mir_build/src/thir/pattern/mod.rs index af0dab4ebc7..c7762f8ce4e 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/mod.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/mod.rs @@ -174,7 +174,7 @@ impl<'a, 'tcx> PatCtxt<'a, 'tcx> { span: Span, ) -> Result<PatKind<'tcx>, ErrorGuaranteed> { if lo_expr.is_none() && hi_expr.is_none() { - let msg = format!("found twice-open range pattern (`..`) outside of error recovery"); + let msg = "found twice-open range pattern (`..`) outside of error recovery"; return Err(self.tcx.sess.span_delayed_bug(span, msg)); } diff --git a/compiler/rustc_mir_transform/src/coroutine.rs b/compiler/rustc_mir_transform/src/coroutine.rs index ed8b4ef3ba4..d7dd44af7d2 100644 --- a/compiler/rustc_mir_transform/src/coroutine.rs +++ b/compiler/rustc_mir_transform/src/coroutine.rs @@ -527,12 +527,26 @@ impl<'tcx> MutVisitor<'tcx> for TransformVisitor<'tcx> { resume_arg }; + let storage_liveness: GrowableBitSet<Local> = + self.storage_liveness[block].clone().unwrap().into(); + + for i in 0..self.always_live_locals.domain_size() { + let l = Local::new(i); + let needs_storage_dead = storage_liveness.contains(l) + && !self.remap.contains_key(&l) + && !self.always_live_locals.contains(l); + if needs_storage_dead { + data.statements + .push(Statement { source_info, kind: StatementKind::StorageDead(l) }); + } + } + self.suspension_points.push(SuspensionPoint { state, resume, resume_arg, drop, - storage_liveness: self.storage_liveness[block].clone().unwrap().into(), + storage_liveness, }); VariantIdx::new(state) @@ -1496,13 +1510,6 @@ fn create_cases<'tcx>( // Create StorageLive instructions for locals with live storage for i in 0..(body.local_decls.len()) { - if i == 2 { - // The resume argument is live on function entry. Don't insert a - // `StorageLive`, or the following `Assign` will read from uninitialized - // memory. - continue; - } - let l = Local::new(i); let needs_storage_live = point.storage_liveness.contains(l) && !transform.remap.contains_key(&l) diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs index 796150f9315..580cbf7a3f8 100644 --- a/compiler/rustc_mir_transform/src/coverage/mod.rs +++ b/compiler/rustc_mir_transform/src/coverage/mod.rs @@ -50,7 +50,7 @@ impl<'tcx> MirPass<'tcx> for InstrumentCoverage { } let is_fn_like = - tcx.hir().get_by_def_id(mir_source.def_id().expect_local()).fn_kind().is_some(); + tcx.hir_node_by_def_id(mir_source.def_id().expect_local()).fn_kind().is_some(); // Only instrument functions, methods, and closures (not constants since they are evaluated // at compile time by Miri). diff --git a/compiler/rustc_mir_transform/src/jump_threading.rs b/compiler/rustc_mir_transform/src/jump_threading.rs index 36a15f47276..a41d8e21245 100644 --- a/compiler/rustc_mir_transform/src/jump_threading.rs +++ b/compiler/rustc_mir_transform/src/jump_threading.rs @@ -649,7 +649,7 @@ impl OpportunitySet { // `succ` must be a successor of `current`. If it is not, this means this TO is not // satisfiable and a previous TO erased this edge, so we bail out. - if basic_blocks[current].terminator().successors().find(|s| *s == succ).is_none() { + if !basic_blocks[current].terminator().successors().any(|s| s == succ) { debug!("impossible"); return; } diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index 5b0011e9f70..509cef9826b 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -1440,21 +1440,23 @@ impl<'a> Parser<'a> { } else if this.eat_keyword(kw::Underscore) { Ok(this.mk_expr(this.prev_token.span, ExprKind::Underscore)) } else if this.token.uninterpolated_span().at_least_rust_2018() { - // `Span:.at_least_rust_2018()` is somewhat expensive; don't get it repeatedly. - if this.check_keyword(kw::Async) { + // `Span::at_least_rust_2018()` is somewhat expensive; don't get it repeatedly. + if this.token.uninterpolated_span().at_least_rust_2024() + // check for `gen {}` and `gen move {}` + // or `async gen {}` and `async gen move {}` + && (this.is_gen_block(kw::Gen, 0) + || (this.check_keyword(kw::Async) && this.is_gen_block(kw::Gen, 1))) + { + // FIXME: (async) gen closures aren't yet parsed. + this.parse_gen_block() + } else if this.check_keyword(kw::Async) { // FIXME(gen_blocks): Parse `gen async` and suggest swap if this.is_gen_block(kw::Async, 0) { // Check for `async {` and `async move {`, - // or `async gen {` and `async gen move {`. this.parse_gen_block() } else { this.parse_expr_closure() } - } else if this.token.uninterpolated_span().at_least_rust_2024() - && (this.is_gen_block(kw::Gen, 0) - || (this.check_keyword(kw::Async) && this.is_gen_block(kw::Gen, 1))) - { - this.parse_gen_block() } else if this.eat_keyword_noexpect(kw::Await) { this.recover_incorrect_await_syntax(lo, this.prev_token.span) } else { @@ -3227,9 +3229,16 @@ impl<'a> Parser<'a> { if self.eat_keyword(kw::Gen) { GenBlockKind::AsyncGen } else { GenBlockKind::Async } } else { assert!(self.eat_keyword(kw::Gen)); - self.sess.gated_spans.gate(sym::gen_blocks, lo.to(self.token.span)); GenBlockKind::Gen }; + match kind { + GenBlockKind::Async => { + // `async` blocks are stable + } + GenBlockKind::Gen | GenBlockKind::AsyncGen => { + self.sess.gated_spans.gate(sym::gen_blocks, lo.to(self.prev_token.span)); + } + } let capture_clause = self.parse_capture_clause()?; let (attrs, body) = self.parse_inner_attrs_and_block()?; let kind = ExprKind::Gen(capture_clause, body, kind); diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_parse/src/validate_attr.rs index cbe75b3dab6..81055431f64 100644 --- a/compiler/rustc_parse/src/validate_attr.rs +++ b/compiler/rustc_parse/src/validate_attr.rs @@ -6,9 +6,9 @@ use rustc_ast::token::Delimiter; use rustc_ast::tokenstream::DelimSpan; use rustc_ast::MetaItemKind; use rustc_ast::{self as ast, AttrArgs, AttrArgsEq, Attribute, DelimArgs, MetaItem}; -use rustc_ast_pretty::pprust; use rustc_errors::{Applicability, FatalError, PResult}; use rustc_feature::{AttributeTemplate, BuiltinAttribute, BUILTIN_ATTRIBUTE_MAP}; +use rustc_session::errors::report_lit_error; use rustc_session::lint::builtin::ILL_FORMED_ATTRIBUTE_INPUT; use rustc_session::parse::ParseSess; use rustc_span::{sym, Span, Symbol}; @@ -51,28 +51,44 @@ pub fn parse_meta<'a>(sess: &'a ParseSess, attr: &Attribute) -> PResult<'a, Meta MetaItemKind::List(nmis) } AttrArgs::Eq(_, AttrArgsEq::Ast(expr)) => { - if let ast::ExprKind::Lit(token_lit) = expr.kind - && let Ok(lit) = ast::MetaItemLit::from_token_lit(token_lit, expr.span) - { - if token_lit.suffix.is_some() { - let mut err = sess.span_diagnostic.struct_span_err( - expr.span, - "suffixed literals are not allowed in attributes", - ); - err.help( - "instead of using a suffixed literal (`1u8`, `1.0f32`, etc.), \ - use an unsuffixed version (`1`, `1.0`, etc.)", - ); - return Err(err); - } else { - MetaItemKind::NameValue(lit) - } + if let ast::ExprKind::Lit(token_lit) = expr.kind { + let res = ast::MetaItemLit::from_token_lit(token_lit, expr.span); + let res = match res { + Ok(lit) => { + if token_lit.suffix.is_some() { + let mut err = sess.span_diagnostic.struct_span_err( + expr.span, + "suffixed literals are not allowed in attributes", + ); + err.help( + "instead of using a suffixed literal (`1u8`, `1.0f32`, etc.), \ + use an unsuffixed version (`1`, `1.0`, etc.)", + ); + return Err(err); + } else { + MetaItemKind::NameValue(lit) + } + } + Err(err) => { + report_lit_error(sess, err, token_lit, expr.span); + let lit = ast::MetaItemLit { + symbol: token_lit.symbol, + suffix: token_lit.suffix, + kind: ast::LitKind::Err, + span: expr.span, + }; + MetaItemKind::NameValue(lit) + } + }; + res } else { - // The non-error case can happen with e.g. `#[foo = 1+1]`. The error case can - // happen with e.g. `#[foo = include_str!("nonexistent-file.rs")]`; in that - // case we delay the error because an earlier error will have already been - // reported. - let msg = format!("unexpected expression: `{}`", pprust::expr_to_string(expr)); + // Example cases: + // - `#[foo = 1+1]`: results in `ast::ExprKind::BinOp`. + // - `#[foo = include_str!("nonexistent-file.rs")]`: + // results in `ast::ExprKind::Err`. In that case we delay + // the error because an earlier error will have already + // been reported. + let msg = format!("attribute value must be a literal"); let mut err = sess.span_diagnostic.struct_span_err(expr.span, msg); if let ast::ExprKind::Err = expr.kind { err.downgrade_to_delayed_bug(); diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index 4910d63010c..c5073048be3 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -604,7 +604,7 @@ impl CheckAttrVisitor<'_> { && !self.tcx.sess.target.is_like_wasm && !self.tcx.sess.opts.actually_rustdoc { - let hir::Node::Item(item) = self.tcx.hir().get(hir_id) else { + let hir::Node::Item(item) = self.tcx.hir_node(hir_id) else { unreachable!(); }; let hir::ItemKind::Fn(sig, _, _) = item.kind else { @@ -820,7 +820,7 @@ impl CheckAttrVisitor<'_> { self.doc_attr_str_error(meta, "keyword"); return false; } - match self.tcx.hir().find(hir_id).and_then(|node| match node { + match self.tcx.opt_hir_node(hir_id).and_then(|node| match node { hir::Node::Item(item) => Some(&item.kind), _ => None, }) { @@ -846,7 +846,7 @@ impl CheckAttrVisitor<'_> { } fn check_doc_fake_variadic(&self, meta: &NestedMetaItem, hir_id: HirId) -> bool { - match self.tcx.hir().find(hir_id).and_then(|node| match node { + match self.tcx.opt_hir_node(hir_id).and_then(|node| match node { hir::Node::Item(item) => Some(&item.kind), _ => None, }) { @@ -1387,7 +1387,7 @@ impl CheckAttrVisitor<'_> { /// Checks if `#[link]` is applied to an item other than a foreign module. fn check_link(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) { if target == Target::ForeignMod - && let hir::Node::Item(item) = self.tcx.hir().get(hir_id) + && let hir::Node::Item(item) = self.tcx.hir_node(hir_id) && let Item { kind: ItemKind::ForeignMod { abi, .. }, .. } = item && !matches!(abi, Abi::Rust | Abi::RustIntrinsic | Abi::PlatformIntrinsic) { @@ -1456,7 +1456,7 @@ impl CheckAttrVisitor<'_> { } fn is_impl_item(&self, hir_id: HirId) -> bool { - matches!(self.tcx.hir().get(hir_id), hir::Node::ImplItem(..)) + matches!(self.tcx.hir_node(hir_id), hir::Node::ImplItem(..)) } /// Checks if `#[export_name]` is applied to a function or static. Returns `true` if valid. @@ -2074,7 +2074,7 @@ impl CheckAttrVisitor<'_> { && let hir::Node::Item(Item { kind: ItemKind::ForeignMod { abi: Abi::RustIntrinsic | Abi::PlatformIntrinsic, .. }, .. - }) = hir.get(parent) + }) = self.tcx.hir_node(parent) { return true; } @@ -2222,7 +2222,7 @@ impl CheckAttrVisitor<'_> { } else { // special case when `#[macro_export]` is applied to a macro 2.0 let (macro_definition, _) = - self.tcx.hir().find(hir_id).unwrap().expect_item().expect_macro(); + self.tcx.opt_hir_node(hir_id).unwrap().expect_item().expect_macro(); let is_decl_macro = !macro_definition.macro_rules; if is_decl_macro { diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs index 7d1cc81e21f..d270794978b 100644 --- a/compiler/rustc_passes/src/dead.rs +++ b/compiler/rustc_passes/src/dead.rs @@ -32,7 +32,7 @@ use crate::errors::{ // may need to be marked as live. fn should_explore(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool { matches!( - tcx.hir().find_by_def_id(def_id), + tcx.opt_hir_node_by_def_id(def_id), Some( Node::Item(..) | Node::ImplItem(..) @@ -297,7 +297,7 @@ impl<'tcx> MarkSymbolVisitor<'tcx> { // tuple struct constructor function let id = self.struct_constructors.get(&id).copied().unwrap_or(id); - if let Some(node) = self.tcx.hir().find_by_def_id(id) { + if let Some(node) = self.tcx.opt_hir_node_by_def_id(id) { // When using `#[allow]` or `#[expect]` of `dead_code`, we do a QOL improvement // by declaring fn calls, statics, ... within said items as live, as well as // the item itself, although technically this is not the case. diff --git a/compiler/rustc_passes/src/diagnostic_items.rs b/compiler/rustc_passes/src/diagnostic_items.rs index d8b9f4fae87..5f767c9acaa 100644 --- a/compiler/rustc_passes/src/diagnostic_items.rs +++ b/compiler/rustc_passes/src/diagnostic_items.rs @@ -83,6 +83,9 @@ fn all_diagnostic_items(tcx: TyCtxt<'_>, (): ()) -> DiagnosticItems { // Collect diagnostic items in other crates. for &cnum in tcx.crates(()).iter().chain(std::iter::once(&LOCAL_CRATE)) { + // We are collecting many DiagnosticItems hash maps into one + // DiagnosticItems hash map. The iteration order does not matter. + #[allow(rustc::potential_query_instability)] for (&name, &def_id) in &tcx.diagnostic_items(cnum).name_to_id { collect_item(tcx, &mut items, name, def_id); } diff --git a/compiler/rustc_passes/src/entry.rs b/compiler/rustc_passes/src/entry.rs index 2629b281756..7667fc21eee 100644 --- a/compiler/rustc_passes/src/entry.rs +++ b/compiler/rustc_passes/src/entry.rs @@ -126,7 +126,7 @@ fn configure_main(tcx: TyCtxt<'_>, visitor: &EntryContext<'_>) -> Option<(DefId, { // non-local main imports are handled below if let Some(def_id) = def_id.as_local() - && matches!(tcx.hir().find_by_def_id(def_id), Some(Node::ForeignItem(_))) + && matches!(tcx.opt_hir_node_by_def_id(def_id), Some(Node::ForeignItem(_))) { tcx.sess.emit_err(ExternMain { span: tcx.def_span(def_id) }); return None; diff --git a/compiler/rustc_passes/src/hir_stats.rs b/compiler/rustc_passes/src/hir_stats.rs index 28354ab0986..85969b72d23 100644 --- a/compiler/rustc_passes/src/hir_stats.rs +++ b/compiler/rustc_passes/src/hir_stats.rs @@ -121,6 +121,8 @@ impl<'k> StatCollector<'k> { } fn print(&self, title: &str, prefix: &str) { + // We will soon sort, so the initial order does not matter. + #[allow(rustc::potential_query_instability)] let mut nodes: Vec<_> = self.nodes.iter().collect(); nodes.sort_by_key(|(_, node)| node.stats.count * node.stats.size); @@ -147,6 +149,8 @@ impl<'k> StatCollector<'k> { to_readable_str(node.stats.size) ); if !node.subnodes.is_empty() { + // We will soon sort, so the initial order does not matter. + #[allow(rustc::potential_query_instability)] let mut subnodes: Vec<_> = node.subnodes.iter().collect(); subnodes.sort_by_key(|(_, subnode)| subnode.count * subnode.size); diff --git a/compiler/rustc_passes/src/lang_items.rs b/compiler/rustc_passes/src/lang_items.rs index d0b782ba4ca..83b7d8d71bc 100644 --- a/compiler/rustc_passes/src/lang_items.rs +++ b/compiler/rustc_passes/src/lang_items.rs @@ -155,7 +155,7 @@ impl<'tcx> LanguageItemCollector<'tcx> { // have minimum requirements. if let hir::Node::Item(hir::Item { kind, span: item_span, .. }) = - self.tcx.hir().get_by_def_id(item_def_id) + self.tcx.hir_node_by_def_id(item_def_id) { let (actual_num, generics_span) = match kind.generics() { Some(generics) => ( diff --git a/compiler/rustc_passes/src/lib.rs b/compiler/rustc_passes/src/lib.rs index 4c4d5e58232..c969867e871 100644 --- a/compiler/rustc_passes/src/lib.rs +++ b/compiler/rustc_passes/src/lib.rs @@ -4,7 +4,6 @@ //! //! This API is completely unstable and subject to change. -#![allow(rustc::potential_query_instability)] #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")] #![doc(rust_logo)] #![feature(rustdoc_internals)] diff --git a/compiler/rustc_passes/src/loops.rs b/compiler/rustc_passes/src/loops.rs index 8e6d5805275..bfaf4a5a957 100644 --- a/compiler/rustc_passes/src/loops.rs +++ b/compiler/rustc_passes/src/loops.rs @@ -4,7 +4,6 @@ use rustc_hir as hir; use rustc_hir::def_id::{LocalDefId, LocalModDefId}; use rustc_hir::intravisit::{self, Visitor}; use rustc_hir::{Destination, Movability, Node}; -use rustc_middle::hir::map::Map; use rustc_middle::hir::nested_filter; use rustc_middle::query::Providers; use rustc_middle::ty::TyCtxt; @@ -30,16 +29,16 @@ enum Context { } #[derive(Copy, Clone)] -struct CheckLoopVisitor<'a, 'hir> { +struct CheckLoopVisitor<'a, 'tcx> { sess: &'a Session, - hir_map: Map<'hir>, + tcx: TyCtxt<'tcx>, cx: Context, } fn check_mod_loops(tcx: TyCtxt<'_>, module_def_id: LocalModDefId) { tcx.hir().visit_item_likes_in_module( module_def_id, - &mut CheckLoopVisitor { sess: tcx.sess, hir_map: tcx.hir(), cx: Normal }, + &mut CheckLoopVisitor { sess: tcx.sess, tcx, cx: Normal }, ); } @@ -51,7 +50,7 @@ impl<'a, 'hir> Visitor<'hir> for CheckLoopVisitor<'a, 'hir> { type NestedFilter = nested_filter::OnlyBodies; fn nested_visit_map(&mut self) -> Self::Map { - self.hir_map + self.tcx.hir() } fn visit_anon_const(&mut self, c: &'hir hir::AnonConst) { @@ -136,13 +135,13 @@ impl<'a, 'hir> Visitor<'hir> for CheckLoopVisitor<'a, 'hir> { Err(hir::LoopIdError::UnresolvedLabel) => None, }; - if let Some(Node::Block(_)) = loop_id.and_then(|id| self.hir_map.find(id)) { + if let Some(Node::Block(_)) = loop_id.and_then(|id| self.tcx.opt_hir_node(id)) { return; } if let Some(break_expr) = opt_expr { let (head, loop_label, loop_kind) = if let Some(loop_id) = loop_id { - match self.hir_map.expect_expr(loop_id).kind { + match self.tcx.hir().expect_expr(loop_id).kind { hir::ExprKind::Loop(_, label, source, sp) => { (Some(sp), label, Some(source)) } @@ -188,7 +187,7 @@ impl<'a, 'hir> Visitor<'hir> for CheckLoopVisitor<'a, 'hir> { match destination.target_id { Ok(loop_id) => { - if let Node::Block(block) = self.hir_map.find(loop_id).unwrap() { + if let Node::Block(block) = self.tcx.opt_hir_node(loop_id).unwrap() { self.sess.emit_err(ContinueLabeledBlock { span: e.span, block_span: block.span, diff --git a/compiler/rustc_passes/src/naked_functions.rs b/compiler/rustc_passes/src/naked_functions.rs index bd73fa78442..25637f935fb 100644 --- a/compiler/rustc_passes/src/naked_functions.rs +++ b/compiler/rustc_passes/src/naked_functions.rs @@ -35,7 +35,7 @@ fn check_mod_naked_functions(tcx: TyCtxt<'_>, module_def_id: LocalModDefId) { continue; } - let (fn_header, body_id) = match tcx.hir().get_by_def_id(def_id) { + let (fn_header, body_id) = match tcx.hir_node_by_def_id(def_id) { hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, _, body_id), .. }) | hir::Node::TraitItem(hir::TraitItem { kind: hir::TraitItemKind::Fn(sig, hir::TraitFn::Provided(body_id)), diff --git a/compiler/rustc_passes/src/reachable.rs b/compiler/rustc_passes/src/reachable.rs index f89c1b0e47c..f46f831ddd7 100644 --- a/compiler/rustc_passes/src/reachable.rs +++ b/compiler/rustc_passes/src/reachable.rs @@ -115,7 +115,7 @@ impl<'tcx> ReachableContext<'tcx> { return false; }; - match self.tcx.hir().find_by_def_id(def_id) { + match self.tcx.opt_hir_node_by_def_id(def_id) { Some(Node::Item(item)) => match item.kind { hir::ItemKind::Fn(..) => item_might_be_inlined(self.tcx, def_id.into()), _ => false, @@ -146,7 +146,7 @@ impl<'tcx> ReachableContext<'tcx> { continue; } - if let Some(ref item) = self.tcx.hir().find_by_def_id(search_item) { + if let Some(ref item) = self.tcx.opt_hir_node_by_def_id(search_item) { self.propagate_node(item, search_item); } } diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs index 26bd52f55d4..676622cef45 100644 --- a/compiler/rustc_passes/src/stability.rs +++ b/compiler/rustc_passes/src/stability.rs @@ -1048,6 +1048,9 @@ pub fn check_unused_or_stable_features(tcx: TyCtxt<'_>) { tcx.sess.emit_err(errors::UnknownFeature { span, feature: *feature }); } + // We only use the hash map contents to emit errors, and the order of + // emitted errors do not affect query stability. + #[allow(rustc::potential_query_instability)] for (implied_by, feature) in remaining_implications { let local_defined_features = tcx.lib_features(LOCAL_CRATE); let span = local_defined_features diff --git a/compiler/rustc_pattern_analysis/src/constructor.rs b/compiler/rustc_pattern_analysis/src/constructor.rs index 716ccdd4dcd..3bca7894a29 100644 --- a/compiler/rustc_pattern_analysis/src/constructor.rs +++ b/compiler/rustc_pattern_analysis/src/constructor.rs @@ -979,7 +979,8 @@ impl ConstructorSet { && !(pcx.is_top_level && matches!(self, Self::NoConstructors)) { // Treat all missing constructors as nonempty. - missing.extend(missing_empty.drain(..)); + // This clears `missing_empty`. + missing.append(&mut missing_empty); } SplitConstructorSet { present, missing, missing_empty } diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index e49282e638a..6a8e23d9a8f 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -1783,7 +1783,7 @@ fn local_visibility(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Visibility { Some(vis) => *vis, None => { let hir_id = tcx.local_def_id_to_hir_id(def_id); - match tcx.hir().get(hir_id) { + match tcx.hir_node(hir_id) { // Unique types created for closures participate in type privacy checking. // They have visibilities inherited from the module they are defined in. Node::Expr(hir::Expr { kind: hir::ExprKind::Closure{..}, .. }) @@ -1800,7 +1800,7 @@ fn local_visibility(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Visibility { // Visibilities of trait impl items are inherited from their traits // and are not filled in resolve. Node::ImplItem(impl_item) => { - match tcx.hir().get_by_def_id(tcx.hir().get_parent_item(hir_id).def_id) { + match tcx.hir_node_by_def_id(tcx.hir().get_parent_item(hir_id).def_id) { Node::Item(hir::Item { kind: hir::ItemKind::Impl(hir::Impl { of_trait: Some(tr), .. }), .. diff --git a/compiler/rustc_query_system/src/dep_graph/serialized.rs b/compiler/rustc_query_system/src/dep_graph/serialized.rs index a70f4138cfb..504763f6cdb 100644 --- a/compiler/rustc_query_system/src/dep_graph/serialized.rs +++ b/compiler/rustc_query_system/src/dep_graph/serialized.rs @@ -70,7 +70,7 @@ const DEP_NODE_PAD: usize = DEP_NODE_SIZE - 1; const DEP_NODE_WIDTH_BITS: usize = DEP_NODE_SIZE / 2; /// Data for use when recompiling the **current crate**. -#[derive(Debug)] +#[derive(Debug, Default)] pub struct SerializedDepGraph { /// The set of all DepNodes in the graph nodes: IndexVec<SerializedDepNodeIndex, DepNode>, @@ -89,18 +89,6 @@ pub struct SerializedDepGraph { index: Vec<UnhashMap<PackedFingerprint, SerializedDepNodeIndex>>, } -impl Default for SerializedDepGraph { - fn default() -> Self { - SerializedDepGraph { - nodes: Default::default(), - fingerprints: Default::default(), - edge_list_indices: Default::default(), - edge_list_data: Default::default(), - index: Default::default(), - } - } -} - impl SerializedDepGraph { #[inline] pub fn edge_targets_from( diff --git a/compiler/rustc_resolve/src/imports.rs b/compiler/rustc_resolve/src/imports.rs index c2306e3ea7d..39e82da6d9d 100644 --- a/compiler/rustc_resolve/src/imports.rs +++ b/compiler/rustc_resolve/src/imports.rs @@ -1002,7 +1002,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { UNUSED_IMPORTS, id, import.span, - msg.to_string(), + msg, BuiltinLintDiagnostics::RedundantImportVisibility { max_vis: max_vis.to_string(def_id, self.tcx), span: import.span, @@ -1063,12 +1063,8 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { initial_binding.res() }); let res = binding.res(); - let has_ambiguity_error = this - .ambiguity_errors - .iter() - .filter(|error| !error.warning) - .next() - .is_some(); + let has_ambiguity_error = + this.ambiguity_errors.iter().any(|error| !error.warning); if res == Res::Err || has_ambiguity_error { this.tcx .sess diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index df30c185c60..d767ed74139 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -8,7 +8,7 @@ use crate::{PathResult, PathSource, Segment}; use rustc_hir::def::Namespace::{self, *}; use rustc_ast::ptr::P; -use rustc_ast::visit::{FnCtxt, FnKind, LifetimeCtxt}; +use rustc_ast::visit::{walk_ty, FnCtxt, FnKind, LifetimeCtxt, Visitor}; use rustc_ast::{ self as ast, AssocItemKind, Expr, ExprKind, GenericParam, GenericParamKind, Item, ItemKind, MethodCall, NodeId, Path, Ty, TyKind, DUMMY_NODE_ID, @@ -1829,13 +1829,12 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { ) .iter() .filter_map(|candidate| candidate.did) - .filter(|did| { + .find(|did| { self.r .tcx .get_attrs(*did, sym::rustc_diagnostic_item) .any(|attr| attr.value_str() == Some(sym::Default)) - }) - .next(); + }); let Some(default_trait) = default_trait else { return; }; @@ -1880,11 +1879,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { }; fields.is_some_and(|fields| { - fields - .iter() - .filter(|vis| !self.r.is_accessible_from(**vis, self.parent_scope.module)) - .next() - .is_some() + fields.iter().any(|vis| !self.r.is_accessible_from(*vis, self.parent_scope.module)) }) } @@ -2178,7 +2173,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { let (span, text) = match path.segments.first() { Some(seg) if let Some(name) = seg.ident.as_str().strip_prefix("let") => { // a special case for #117894 - let name = name.strip_prefix("_").unwrap_or(name); + let name = name.strip_prefix('_').unwrap_or(name); (ident_span, format!("let {name}")) } _ => (ident_span.shrink_to_lo(), "let ".to_string()), @@ -2830,6 +2825,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { .collect(); debug!(?in_scope_lifetimes); + let mut maybe_static = false; debug!(?function_param_lifetimes); if let Some((param_lifetimes, params)) = &function_param_lifetimes { let elided_len = param_lifetimes.len(); @@ -2868,10 +2864,11 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { if num_params == 0 { err.help( - "this function's return type contains a borrowed value, \ - but there is no value for it to be borrowed from", + "this function's return type contains a borrowed value, but there is no value \ + for it to be borrowed from", ); if in_scope_lifetimes.is_empty() { + maybe_static = true; in_scope_lifetimes = vec![( Ident::with_dummy_span(kw::StaticLifetime), (DUMMY_NODE_ID, LifetimeRes::Static), @@ -2879,11 +2876,11 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { } } else if elided_len == 0 { err.help( - "this function's return type contains a borrowed value with \ - an elided lifetime, but the lifetime cannot be derived from \ - the arguments", + "this function's return type contains a borrowed value with an elided \ + lifetime, but the lifetime cannot be derived from the arguments", ); if in_scope_lifetimes.is_empty() { + maybe_static = true; in_scope_lifetimes = vec![( Ident::with_dummy_span(kw::StaticLifetime), (DUMMY_NODE_ID, LifetimeRes::Static), @@ -2891,13 +2888,13 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { } } else if num_params == 1 { err.help(format!( - "this function's return type contains a borrowed value, \ - but the signature does not say which {m} it is borrowed from" + "this function's return type contains a borrowed value, but the signature does \ + not say which {m} it is borrowed from", )); } else { err.help(format!( - "this function's return type contains a borrowed value, \ - but the signature does not say whether it is borrowed from {m}" + "this function's return type contains a borrowed value, but the signature does \ + not say whether it is borrowed from {m}", )); } } @@ -2962,11 +2959,238 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { ); } 1 => { + let post = if maybe_static { + let owned = if let [lt] = &lifetime_refs[..] + && lt.kind != MissingLifetimeKind::Ampersand + { + ", or if you will only have owned values" + } else { + "" + }; + format!( + ", but this is uncommon unless you're returning a borrowed value from a \ + `const` or a `static`{owned}", + ) + } else { + String::new() + }; err.multipart_suggestion_verbose( - format!("consider using the `{existing_name}` lifetime"), + format!("consider using the `{existing_name}` lifetime{post}"), spans_suggs, Applicability::MaybeIncorrect, ); + if maybe_static { + // FIXME: what follows are general suggestions, but we'd want to perform some + // minimal flow analysis to provide more accurate suggestions. For example, if + // we identified that the return expression references only one argument, we + // would suggest borrowing only that argument, and we'd skip the prior + // "use `'static`" suggestion entirely. + if let [lt] = &lifetime_refs[..] + && (lt.kind == MissingLifetimeKind::Ampersand + || lt.kind == MissingLifetimeKind::Underscore) + { + let pre = if lt.kind == MissingLifetimeKind::Ampersand + && let Some((kind, _span)) = self.diagnostic_metadata.current_function + && let FnKind::Fn(_, _, sig, _, _, _) = kind + && !sig.decl.inputs.is_empty() + && let sugg = sig + .decl + .inputs + .iter() + .filter_map(|param| { + if param.ty.span.contains(lt.span) { + // We don't want to suggest `fn elision(_: &fn() -> &i32)` + // when we have `fn elision(_: fn() -> &i32)` + None + } else if let TyKind::CVarArgs = param.ty.kind { + // Don't suggest `&...` for ffi fn with varargs + None + } else if let TyKind::ImplTrait(..) = ¶m.ty.kind { + // We handle these in the next `else if` branch. + None + } else { + Some((param.ty.span.shrink_to_lo(), "&".to_string())) + } + }) + .collect::<Vec<_>>() + && !sugg.is_empty() + { + let (the, s) = if sig.decl.inputs.len() == 1 { + ("the", "") + } else { + ("one of the", "s") + }; + err.multipart_suggestion_verbose( + format!( + "instead, you are more likely to want to change {the} \ + argument{s} to be borrowed...", + ), + sugg, + Applicability::MaybeIncorrect, + ); + "...or alternatively, you might want" + } else if (lt.kind == MissingLifetimeKind::Ampersand + || lt.kind == MissingLifetimeKind::Underscore) + && let Some((kind, _span)) = self.diagnostic_metadata.current_function + && let FnKind::Fn(_, _, sig, _, _, _) = kind + && let ast::FnRetTy::Ty(ret_ty) = &sig.decl.output + && !sig.decl.inputs.is_empty() + && let arg_refs = sig + .decl + .inputs + .iter() + .filter_map(|param| match ¶m.ty.kind { + TyKind::ImplTrait(_, bounds) => Some(bounds), + _ => None, + }) + .flat_map(|bounds| bounds.into_iter()) + .collect::<Vec<_>>() + && !arg_refs.is_empty() + { + // We have a situation like + // fn g(mut x: impl Iterator<Item = &()>) -> Option<&()> + // So we look at every ref in the trait bound. If there's any, we + // suggest + // fn g<'a>(mut x: impl Iterator<Item = &'a ()>) -> Option<&'a ()> + let mut lt_finder = + LifetimeFinder { lifetime: lt.span, found: None, seen: vec![] }; + for bound in arg_refs { + if let ast::GenericBound::Trait(trait_ref, _) = bound { + lt_finder.visit_trait_ref(&trait_ref.trait_ref); + } + } + lt_finder.visit_ty(ret_ty); + let spans_suggs: Vec<_> = lt_finder + .seen + .iter() + .filter_map(|ty| match &ty.kind { + TyKind::Ref(_, mut_ty) => { + let span = ty.span.with_hi(mut_ty.ty.span.lo()); + Some((span, "&'a ".to_string())) + } + _ => None, + }) + .collect(); + self.suggest_introducing_lifetime( + err, + None, + |err, higher_ranked, span, message, intro_sugg| { + err.multipart_suggestion_verbose( + message, + std::iter::once((span, intro_sugg)) + .chain(spans_suggs.iter().cloned()) + .collect(), + Applicability::MaybeIncorrect, + ); + higher_ranked + }, + ); + "alternatively, you might want" + } else { + "instead, you are more likely to want" + }; + let mut owned_sugg = lt.kind == MissingLifetimeKind::Ampersand; + let mut sugg = vec![(lt.span, String::new())]; + if let Some((kind, _span)) = self.diagnostic_metadata.current_function + && let FnKind::Fn(_, _, sig, _, _, _) = kind + && let ast::FnRetTy::Ty(ty) = &sig.decl.output + { + let mut lt_finder = + LifetimeFinder { lifetime: lt.span, found: None, seen: vec![] }; + lt_finder.visit_ty(&ty); + + if let [Ty { span, kind: TyKind::Ref(_, mut_ty), .. }] = + <_finder.seen[..] + { + // We might have a situation like + // fn g(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'_ ()> + // but `lt.span` only points at `'_`, so to suggest `-> Option<()>` + // we need to find a more accurate span to end up with + // fn g<'a>(mut x: impl Iterator<Item = &'_ ()>) -> Option<()> + sugg = vec![(span.with_hi(mut_ty.ty.span.lo()), String::new())]; + owned_sugg = true; + } + if let Some(ty) = lt_finder.found { + if let TyKind::Path(None, path) = &ty.kind { + // Check if the path being borrowed is likely to be owned. + let path: Vec<_> = Segment::from_path(path); + match self.resolve_path(&path, Some(TypeNS), None) { + PathResult::Module(ModuleOrUniformRoot::Module(module)) => { + match module.res() { + Some(Res::PrimTy(PrimTy::Str)) => { + // Don't suggest `-> str`, suggest `-> String`. + sugg = vec![( + lt.span.with_hi(ty.span.hi()), + "String".to_string(), + )]; + } + Some(Res::PrimTy(..)) => {} + Some(Res::Def( + DefKind::Struct + | DefKind::Union + | DefKind::Enum + | DefKind::ForeignTy + | DefKind::AssocTy + | DefKind::OpaqueTy + | DefKind::TyParam, + _, + )) => {} + _ => { + // Do not suggest in all other cases. + owned_sugg = false; + } + } + } + PathResult::NonModule(res) => { + match res.base_res() { + Res::PrimTy(PrimTy::Str) => { + // Don't suggest `-> str`, suggest `-> String`. + sugg = vec![( + lt.span.with_hi(ty.span.hi()), + "String".to_string(), + )]; + } + Res::PrimTy(..) => {} + Res::Def( + DefKind::Struct + | DefKind::Union + | DefKind::Enum + | DefKind::ForeignTy + | DefKind::AssocTy + | DefKind::OpaqueTy + | DefKind::TyParam, + _, + ) => {} + _ => { + // Do not suggest in all other cases. + owned_sugg = false; + } + } + } + _ => { + // Do not suggest in all other cases. + owned_sugg = false; + } + } + } + if let TyKind::Slice(inner_ty) = &ty.kind { + // Don't suggest `-> [T]`, suggest `-> Vec<T>`. + sugg = vec![ + (lt.span.with_hi(inner_ty.span.lo()), "Vec<".to_string()), + (ty.span.with_lo(inner_ty.span.hi()), ">".to_string()), + ]; + } + } + } + if owned_sugg { + err.multipart_suggestion_verbose( + format!("{pre} to return an owned value"), + sugg, + Applicability::MaybeIncorrect, + ); + } + } + } // Record as using the suggested resolution. let (_, (_, res)) = in_scope_lifetimes[0]; @@ -2996,7 +3220,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { fn mk_where_bound_predicate( path: &Path, poly_trait_ref: &ast::PolyTraitRef, - ty: &ast::Ty, + ty: &Ty, ) -> Option<ast::WhereBoundPredicate> { use rustc_span::DUMMY_SP; let modified_segments = { @@ -3073,6 +3297,24 @@ pub(super) fn signal_lifetime_shadowing(sess: &Session, orig: Ident, shadower: I err.emit(); } +struct LifetimeFinder<'ast> { + lifetime: Span, + found: Option<&'ast Ty>, + seen: Vec<&'ast Ty>, +} + +impl<'ast> Visitor<'ast> for LifetimeFinder<'ast> { + fn visit_ty(&mut self, t: &'ast Ty) { + if let TyKind::Ref(_, mut_ty) = &t.kind { + self.seen.push(t); + if t.span.lo() == self.lifetime.lo() { + self.found = Some(&mut_ty.ty); + } + } + walk_ty(self, t) + } +} + /// Shadowing involving a label is only a warning for historical reasons. //FIXME: make this a proper lint. pub(super) fn signal_label_shadowing(sess: &Session, orig: Span, shadower: Ident) { diff --git a/compiler/rustc_smir/src/rustc_smir/builder.rs b/compiler/rustc_smir/src/rustc_smir/builder.rs index 7e74a1d92c7..039bdec4c78 100644 --- a/compiler/rustc_smir/src/rustc_smir/builder.rs +++ b/compiler/rustc_smir/src/rustc_smir/builder.rs @@ -6,7 +6,7 @@ use crate::rustc_smir::{Stable, Tables}; use rustc_middle::mir; use rustc_middle::mir::visit::MutVisitor; -use rustc_middle::ty::{self, Ty, TyCtxt}; +use rustc_middle::ty::{self, GenericArgsRef, Ty, TyCtxt}; /// Builds a monomorphic body for a given instance. pub struct BodyBuilder<'tcx> { @@ -68,6 +68,10 @@ impl<'tcx> MutVisitor<'tcx> for BodyBuilder<'tcx> { self.super_constant(constant, location); } + fn visit_args(&mut self, args: &mut GenericArgsRef<'tcx>, _: mir::Location) { + *args = self.monomorphize(*args); + } + fn tcx(&self) -> TyCtxt<'tcx> { self.tcx } diff --git a/compiler/rustc_smir/src/rustc_smir/context.rs b/compiler/rustc_smir/src/rustc_smir/context.rs index 22e9f66ba96..241a0c22310 100644 --- a/compiler/rustc_smir/src/rustc_smir/context.rs +++ b/compiler/rustc_smir/src/rustc_smir/context.rs @@ -157,7 +157,7 @@ impl<'tcx> Context for TablesWrapper<'tcx> { (name == crate_name).then(|| smir_crate(tables.tcx, *crate_num)) }) .into_iter() - .filter_map(|c| c) + .flatten() .collect(); crates } @@ -213,6 +213,11 @@ impl<'tcx> Context for TablesWrapper<'tcx> { def.internal(&mut *tables).is_box() } + fn adt_is_simd(&self, def: AdtDef) -> bool { + let mut tables = self.0.borrow_mut(); + def.internal(&mut *tables).repr().simd() + } + fn fn_sig(&self, def: FnDef, args: &GenericArgs) -> PolyFnSig { let mut tables = self.0.borrow_mut(); let def_id = def.0.internal(&mut *tables); @@ -220,6 +225,13 @@ impl<'tcx> Context for TablesWrapper<'tcx> { sig.stable(&mut *tables) } + fn closure_sig(&self, args: &GenericArgs) -> PolyFnSig { + let mut tables = self.0.borrow_mut(); + let args_ref = args.internal(&mut *tables); + let sig = args_ref.as_closure().sig(); + sig.stable(&mut *tables) + } + fn adt_variants_len(&self, def: AdtDef) -> usize { let mut tables = self.0.borrow_mut(); def.internal(&mut *tables).variants().len() diff --git a/compiler/rustc_smir/src/rustc_smir/convert/mir.rs b/compiler/rustc_smir/src/rustc_smir/convert/mir.rs index 0cea3fcc7f7..8c1767501d9 100644 --- a/compiler/rustc_smir/src/rustc_smir/convert/mir.rs +++ b/compiler/rustc_smir/src/rustc_smir/convert/mir.rs @@ -707,7 +707,7 @@ impl<'tcx> Stable<'tcx> for rustc_middle::mir::Const<'tcx> { let id = tables.intern_const(*self); Const::new(kind, ty, id) } - mir::Const::Val(val, ty) if matches!(val, mir::ConstValue::ZeroSized) => { + mir::Const::Val(mir::ConstValue::ZeroSized, ty) => { let ty = ty.stable(tables); let id = tables.intern_const(*self); Const::new(ConstantKind::ZeroSized, ty, id) diff --git a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs index e49d134659e..3d673f2f1ec 100644 --- a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs +++ b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs @@ -364,7 +364,7 @@ fn encode_ty_name(tcx: TyCtxt<'_>, def_id: DefId) -> String { // _ZTSFvu27NvNtC1234_5crate6Trait13fooIu22NtC1234_5crate7Struct1Iu3i32ES_EE // // The reason for not using v0's extended form of paths is to use a consistent and simpler - // encoding, as the reasoning for using it isn't relevand for type metadata identifiers (i.e., + // encoding, as the reasoning for using it isn't relevant for type metadata identifiers (i.e., // keep symbol names close to how methods are represented in error messages). See // https://rust-lang.github.io/rfcs/2603-rust-symbol-name-mangling-v0.html#methods. let mut s = String::new(); diff --git a/compiler/rustc_target/src/spec/base/apple/mod.rs b/compiler/rustc_target/src/spec/base/apple/mod.rs index f32cb06d68f..afd60b40c3b 100644 --- a/compiler/rustc_target/src/spec/base/apple/mod.rs +++ b/compiler/rustc_target/src/spec/base/apple/mod.rs @@ -1,8 +1,8 @@ use std::{borrow::Cow, env}; use crate::spec::{add_link_args, add_link_args_iter}; -use crate::spec::{cvs, Cc, DebuginfoKind, FramePointer, LinkArgs}; -use crate::spec::{LinkerFlavor, Lld, SplitDebuginfo, StaticCow, Target, TargetOptions}; +use crate::spec::{cvs, Cc, DebuginfoKind, FramePointer, LinkArgs, LinkerFlavor, Lld}; +use crate::spec::{SplitDebuginfo, StackProbeType, StaticCow, Target, TargetOptions}; #[cfg(test)] mod tests; @@ -81,6 +81,14 @@ impl Arch { Arm64_sim => "apple-a12", } } + + fn stack_probes(self) -> StackProbeType { + match self { + Armv7k | Armv7s => StackProbeType::None, + Arm64 | Arm64e | Arm64_32 | I386 | I686 | X86_64 | X86_64h | X86_64_sim + | X86_64_macabi | Arm64_macabi | Arm64_sim => StackProbeType::Inline, + } + } } fn pre_link_args(os: &'static str, arch: Arch, abi: &'static str) -> LinkArgs { @@ -147,6 +155,7 @@ pub fn opts(os: &'static str, arch: Arch) -> TargetOptions { abi_return_struct_as_int: true, emit_debug_gdb_scripts: false, eh_frame_header: false, + stack_probes: arch.stack_probes(), debuginfo_kind: DebuginfoKind::DwarfDsym, // The historical default for macOS targets is to run `dsymutil` which diff --git a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu.rs index bbaa870ec2e..739a9e4a3dc 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu.rs @@ -1,5 +1,5 @@ use crate::abi::Endian; -use crate::spec::{base, Target, TargetOptions}; +use crate::spec::{base, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -10,6 +10,7 @@ pub fn target() -> Target { options: TargetOptions { features: "+v8a,+outline-atomics".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, mcount: "\u{1}_mcount".into(), endian: Endian::Big, ..base::linux_gnu::opts() diff --git a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu_ilp32.rs b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu_ilp32.rs index 7536e507b3d..1b87c09e3fe 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu_ilp32.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu_ilp32.rs @@ -1,5 +1,5 @@ use crate::abi::Endian; -use crate::spec::{base, Target, TargetOptions}; +use crate::spec::{base, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { let mut base = base::linux_gnu::opts(); @@ -13,6 +13,7 @@ pub fn target() -> Target { options: TargetOptions { abi: "ilp32".into(), features: "+v8a,+outline-atomics".into(), + stack_probes: StackProbeType::Inline, mcount: "\u{1}_mcount".into(), endian: Endian::Big, ..base diff --git a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_netbsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_netbsd.rs index 21de8a71a0d..02e156f19de 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_netbsd.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_netbsd.rs @@ -1,5 +1,5 @@ use crate::abi::Endian; -use crate::spec::{base, Target, TargetOptions}; +use crate::spec::{base, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -10,6 +10,7 @@ pub fn target() -> Target { options: TargetOptions { mcount: "__mcount".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, endian: Endian::Big, ..base::netbsd::opts() }, diff --git a/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs b/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs index e5e22fd1ee2..5b4ffc08a57 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, RelocModel, Target, TargetOptions}; +use crate::spec::{base, RelocModel, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { let base = base::solid::opts("asp3"); @@ -13,6 +13,7 @@ pub fn target() -> Target { relocation_model: RelocModel::Static, disable_redzone: true, max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, ..base }, } diff --git a/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs b/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs index 7c6fed7ab99..db9a1808560 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, SanitizerSet, Target, TargetOptions}; +use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions}; // See https://developer.android.com/ndk/guides/abis.html#arm64-v8a // for target ABI requirements. @@ -14,6 +14,7 @@ pub fn target() -> Target { // As documented in https://developer.android.com/ndk/guides/cpu-features.html // the neon (ASIMD) and FP must exist on all android aarch64 targets. features: "+v8a,+neon,+fp-armv8".into(), + stack_probes: StackProbeType::Inline, supported_sanitizers: SanitizerSet::CFI | SanitizerSet::HWADDRESS | SanitizerSet::MEMTAG diff --git a/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs b/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs index 02fcc2bb43e..5a92225c496 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs @@ -1,4 +1,6 @@ -use crate::spec::{Cc, LinkerFlavor, Lld, PanicStrategy, RelroLevel, Target, TargetOptions}; +use crate::spec::{ + Cc, LinkerFlavor, Lld, PanicStrategy, RelroLevel, StackProbeType, Target, TargetOptions, +}; const LINKER_SCRIPT: &str = include_str!("./aarch64_nintendo_switch_freestanding_linker_script.ld"); @@ -16,6 +18,7 @@ pub fn target() -> Target { link_script: Some(LINKER_SCRIPT.into()), os: "horizon".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, panic_strategy: PanicStrategy::Abort, position_independent_executables: true, dynamic_linking: true, diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs index 0f95984a31f..0ba91a54f1d 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, SanitizerSet, Target, TargetOptions}; +use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -9,6 +9,7 @@ pub fn target() -> Target { options: TargetOptions { features: "+v8a".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, supported_sanitizers: SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::MEMORY diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs index cacc6ea235a..430a1c5e7f1 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, SanitizerSet, Target, TargetOptions}; +use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -9,6 +9,7 @@ pub fn target() -> Target { options: TargetOptions { features: "+v8a".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, supported_sanitizers: SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::SHADOWCALLSTACK, diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs index 3839e0b9c46..50813b81b8d 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, Target, TargetOptions}; +use crate::spec::{base, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -9,6 +9,7 @@ pub fn target() -> Target { options: TargetOptions { features: "+v8a,+strict-align,+neon,+fp-armv8".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, ..base::hermit::opts() }, } diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs index c0b07db3818..5b3a2ffa599 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, SanitizerSet, Target, TargetOptions}; +use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -10,6 +10,7 @@ pub fn target() -> Target { features: "+v8a,+outline-atomics".into(), mcount: "\u{1}_mcount".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, supported_sanitizers: SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu_ilp32.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu_ilp32.rs index d4c6271b241..0ff5c8651e6 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu_ilp32.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu_ilp32.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, Target, TargetOptions}; +use crate::spec::{base, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -10,6 +10,7 @@ pub fn target() -> Target { abi: "ilp32".into(), features: "+v8a,+outline-atomics".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, mcount: "\u{1}_mcount".into(), ..base::linux_gnu::opts() }, diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs index 364df677e44..d16ccd803a9 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs @@ -1,10 +1,11 @@ -use crate::spec::{base, SanitizerSet, Target, TargetOptions}; +use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { let mut base = base::linux_musl::opts(); base.max_atomic_width = Some(128); base.supports_xray = true; base.features = "+v8a".into(); + base.stack_probes = StackProbeType::Inline; base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs index 5f3bef63aa6..1be27a51108 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs @@ -1,5 +1,5 @@ use crate::spec::SanitizerSet; -use crate::spec::{base, Target, TargetOptions}; +use crate::spec::{base, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { let mut base = base::linux_ohos::opts(); @@ -14,6 +14,7 @@ pub fn target() -> Target { options: TargetOptions { features: "+reserve-x18".into(), mcount: "\u{1}_mcount".into(), + stack_probes: StackProbeType::Inline, supported_sanitizers: SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs index 3194d16ff47..32a0816cf81 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, Target, TargetOptions}; +use crate::spec::{base, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -10,6 +10,7 @@ pub fn target() -> Target { features: "+v8a".into(), mcount: "__mcount".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, ..base::netbsd::opts() }, } diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs index 63a8144f69f..518597b3811 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs @@ -7,7 +7,8 @@ // For example, `-C target-cpu=cortex-a53`. use crate::spec::{ - Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, SanitizerSet, Target, TargetOptions, + Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, SanitizerSet, StackProbeType, Target, + TargetOptions, }; pub fn target() -> Target { @@ -24,6 +25,7 @@ pub fn target() -> Target { relocation_model: RelocModel::Static, disable_redzone: true, max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, panic_strategy: PanicStrategy::Abort, ..Default::default() }; diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs index 48b79b0b9ba..d56fbdbbe90 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs @@ -6,7 +6,9 @@ // // For example, `-C target-cpu=cortex-a53`. -use crate::spec::{Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, Target, TargetOptions}; +use crate::spec::{ + Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, StackProbeType, Target, TargetOptions, +}; pub fn target() -> Target { let opts = TargetOptions { @@ -17,6 +19,7 @@ pub fn target() -> Target { relocation_model: RelocModel::Static, disable_redzone: true, max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, panic_strategy: PanicStrategy::Abort, ..Default::default() }; diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs index e3f5aafc7d4..d5fca5c31a6 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, Target, TargetOptions}; +use crate::spec::{base, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -9,6 +9,7 @@ pub fn target() -> Target { options: TargetOptions { features: "+v8a".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, ..base::openbsd::opts() }, } diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs index de875e29ffd..844fed472a2 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs @@ -1,8 +1,9 @@ -use crate::spec::{base, Target}; +use crate::spec::{base, StackProbeType, Target}; pub fn target() -> Target { let mut base = base::redox::opts(); base.max_atomic_width = Some(128); + base.stack_probes = StackProbeType::Inline; base.features = "+v8a".into(); Target { diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs index b490e80258c..204e9b061ce 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs @@ -1,9 +1,10 @@ -use crate::spec::{base, Target}; +use crate::spec::{base, StackProbeType, Target}; pub fn target() -> Target { let mut base = base::teeos::opts(); base.features = "+strict-align,+neon,+fp-armv8".into(); base.max_atomic_width = Some(128); + base.stack_probes = StackProbeType::Inline; Target { llvm_target: "aarch64-unknown-none".into(), diff --git a/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs index 29f61d85778..48e142347d7 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs @@ -1,4 +1,4 @@ -use crate::spec::{base, Target, TargetOptions}; +use crate::spec::{base, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { Target { @@ -9,6 +9,7 @@ pub fn target() -> Target { options: TargetOptions { features: "+v8a".into(), max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, ..base::vxworks::opts() }, } diff --git a/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs b/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs index ce0d604f57c..13f8b6b5a0a 100644 --- a/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs +++ b/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs @@ -1,5 +1,5 @@ use crate::spec::base::apple::{ios_sim_llvm_target, opts, Arch}; -use crate::spec::{StackProbeType, Target, TargetOptions}; +use crate::spec::{Target, TargetOptions}; pub fn target() -> Target { let arch = Arch::I386; @@ -14,10 +14,6 @@ pub fn target() -> Target { f64:32:64-f80:128-n8:16:32-S128" .into(), arch: arch.target_arch(), - options: TargetOptions { - max_atomic_width: Some(64), - stack_probes: StackProbeType::Inline, - ..opts("ios", arch) - }, + options: TargetOptions { max_atomic_width: Some(64), ..opts("ios", arch) }, } } diff --git a/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs index c4c9023419d..59069fe4e3a 100644 --- a/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs +++ b/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs @@ -1,5 +1,5 @@ use crate::spec::base::apple::{macos_llvm_target, opts, Arch}; -use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, StackProbeType, Target, TargetOptions}; +use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, Target, TargetOptions}; pub fn target() -> Target { // ld64 only understands i386 and not i686 @@ -7,7 +7,6 @@ pub fn target() -> Target { let mut base = opts("macos", arch); base.max_atomic_width = Some(64); base.add_pre_link_args(LinkerFlavor::Darwin(Cc::Yes, Lld::No), &["-m32"]); - base.stack_probes = StackProbeType::Inline; base.frame_pointer = FramePointer::Always; Target { diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs index 81173a16f96..59df3937ea6 100644 --- a/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs +++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs @@ -1,6 +1,6 @@ use crate::spec::base::apple::{macos_llvm_target, opts, Arch}; use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, SanitizerSet}; -use crate::spec::{StackProbeType, Target, TargetOptions}; +use crate::spec::{Target, TargetOptions}; pub fn target() -> Target { let arch = Arch::X86_64; @@ -8,7 +8,6 @@ pub fn target() -> Target { base.max_atomic_width = Some(128); // penryn+ supports cmpxchg16b base.frame_pointer = FramePointer::Always; base.add_pre_link_args(LinkerFlavor::Darwin(Cc::Yes, Lld::No), &["-m64"]); - base.stack_probes = StackProbeType::Inline; base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK | SanitizerSet::THREAD; diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs index 221635526d1..d0e2ac44a2a 100644 --- a/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs +++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs @@ -1,5 +1,5 @@ use crate::spec::base::apple::{ios_sim_llvm_target, opts, Arch}; -use crate::spec::{SanitizerSet, StackProbeType, Target, TargetOptions}; +use crate::spec::{SanitizerSet, Target, TargetOptions}; pub fn target() -> Target { let arch = Arch::X86_64_sim; @@ -12,10 +12,6 @@ pub fn target() -> Target { data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" .into(), arch: arch.target_arch(), - options: TargetOptions { - max_atomic_width: Some(128), - stack_probes: StackProbeType::Inline, - ..base - }, + options: TargetOptions { max_atomic_width: Some(128), ..base }, } } diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_ios_macabi.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_ios_macabi.rs index 5f6b4b500d0..8ef4b88b8b1 100644 --- a/compiler/rustc_target/src/spec/targets/x86_64_apple_ios_macabi.rs +++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_ios_macabi.rs @@ -1,5 +1,5 @@ use crate::spec::base::apple::{opts, Arch}; -use crate::spec::{Cc, LinkerFlavor, Lld, SanitizerSet, StackProbeType, Target, TargetOptions}; +use crate::spec::{Cc, LinkerFlavor, Lld, SanitizerSet, Target, TargetOptions}; pub fn target() -> Target { let llvm_target = "x86_64-apple-ios14.0-macabi"; @@ -15,10 +15,6 @@ pub fn target() -> Target { data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" .into(), arch: arch.target_arch(), - options: TargetOptions { - max_atomic_width: Some(128), - stack_probes: StackProbeType::Inline, - ..base - }, + options: TargetOptions { max_atomic_width: Some(128), ..base }, } } diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_tvos.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_tvos.rs index a7d5f28e0e5..17efd437f2f 100644 --- a/compiler/rustc_target/src/spec/targets/x86_64_apple_tvos.rs +++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_tvos.rs @@ -1,5 +1,5 @@ use crate::spec::base::apple::{opts, tvos_sim_llvm_target, Arch}; -use crate::spec::{StackProbeType, Target, TargetOptions}; +use crate::spec::{Target, TargetOptions}; pub fn target() -> Target { let arch = Arch::X86_64_sim; @@ -9,10 +9,6 @@ pub fn target() -> Target { data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" .into(), arch: arch.target_arch(), - options: TargetOptions { - max_atomic_width: Some(128), - stack_probes: StackProbeType::Inline, - ..opts("tvos", arch) - }, + options: TargetOptions { max_atomic_width: Some(128), ..opts("tvos", arch) }, } } diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_watchos_sim.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_watchos_sim.rs index 3c5bf30ef5f..b1f72ee2f21 100644 --- a/compiler/rustc_target/src/spec/targets/x86_64_apple_watchos_sim.rs +++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_watchos_sim.rs @@ -1,5 +1,5 @@ use crate::spec::base::apple::{opts, watchos_sim_llvm_target, Arch}; -use crate::spec::{StackProbeType, Target, TargetOptions}; +use crate::spec::{Target, TargetOptions}; pub fn target() -> Target { let arch = Arch::X86_64_sim; @@ -9,10 +9,6 @@ pub fn target() -> Target { data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" .into(), arch: arch.target_arch(), - options: TargetOptions { - max_atomic_width: Some(128), - stack_probes: StackProbeType::Inline, - ..opts("watchos", arch) - }, + options: TargetOptions { max_atomic_width: Some(128), ..opts("watchos", arch) }, } } diff --git a/compiler/rustc_target/src/spec/targets/x86_64h_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/x86_64h_apple_darwin.rs index 32d15c18678..0c731e369eb 100644 --- a/compiler/rustc_target/src/spec/targets/x86_64h_apple_darwin.rs +++ b/compiler/rustc_target/src/spec/targets/x86_64h_apple_darwin.rs @@ -1,6 +1,6 @@ use crate::spec::base::apple::{macos_llvm_target, opts, Arch}; use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, SanitizerSet}; -use crate::spec::{StackProbeType, Target, TargetOptions}; +use crate::spec::{Target, TargetOptions}; pub fn target() -> Target { let arch = Arch::X86_64h; @@ -8,7 +8,6 @@ pub fn target() -> Target { base.max_atomic_width = Some(128); base.frame_pointer = FramePointer::Always; base.add_pre_link_args(LinkerFlavor::Darwin(Cc::Yes, Lld::No), &["-m64"]); - base.stack_probes = StackProbeType::Inline; base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK | SanitizerSet::THREAD; diff --git a/compiler/rustc_trait_selection/src/infer.rs b/compiler/rustc_trait_selection/src/infer.rs index 4b11cc3ace9..251f0628a71 100644 --- a/compiler/rustc_trait_selection/src/infer.rs +++ b/compiler/rustc_trait_selection/src/infer.rs @@ -101,11 +101,10 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> { self.tcx.impl_trait_ref(impl_def_id).map(|r| (impl_def_id, r)) }) .map(|(impl_def_id, imp)| (impl_def_id, imp.skip_binder())) - .filter(|(_, imp)| match imp.self_ty().peel_refs().kind() { + .find(|(_, imp)| match imp.self_ty().peel_refs().kind() { ty::Adt(i_def, _) if i_def.did() == def.did() => true, _ => false, }) - .next() { let mut fulfill_cx = FulfillmentCtxt::new(self); // We get all obligations from the impl to talk about specific diff --git a/compiler/rustc_trait_selection/src/solve/mod.rs b/compiler/rustc_trait_selection/src/solve/mod.rs index 0ab099ef0c8..f45473e06dc 100644 --- a/compiler/rustc_trait_selection/src/solve/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/mod.rs @@ -41,9 +41,8 @@ mod trait_goals; pub use eval_ctxt::{EvalCtxt, GenerateProofTree, InferCtxtEvalExt, InferCtxtSelectExt}; pub use fulfill::FulfillmentCtxt; -pub(crate) use normalize::{ - deeply_normalize, deeply_normalize_for_diagnostics, deeply_normalize_with_skipped_universes, -}; +pub(crate) use normalize::deeply_normalize_for_diagnostics; +pub use normalize::{deeply_normalize, deeply_normalize_with_skipped_universes}; #[derive(Debug, Clone, Copy)] enum SolverMode { diff --git a/compiler/rustc_trait_selection/src/solve/normalize.rs b/compiler/rustc_trait_selection/src/solve/normalize.rs index 1e495b4d979..55b79e6fc39 100644 --- a/compiler/rustc_trait_selection/src/solve/normalize.rs +++ b/compiler/rustc_trait_selection/src/solve/normalize.rs @@ -17,7 +17,7 @@ use super::FulfillmentCtxt; /// Deeply normalize all aliases in `value`. This does not handle inference and expects /// its input to be already fully resolved. -pub(crate) fn deeply_normalize<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>( +pub fn deeply_normalize<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>( at: At<'_, 'tcx>, value: T, ) -> Result<T, Vec<FulfillmentError<'tcx>>> { @@ -31,7 +31,7 @@ pub(crate) fn deeply_normalize<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>( /// Additionally takes a list of universes which represents the binders which have been /// entered before passing `value` to the function. This is currently needed for /// `normalize_erasing_regions`, which skips binders as it walks through a type. -pub(crate) fn deeply_normalize_with_skipped_universes<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>( +pub fn deeply_normalize_with_skipped_universes<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>( at: At<'_, 'tcx>, value: T, universes: Vec<Option<UniverseIndex>>, diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs index c07db12b25b..61e97dde5f8 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs @@ -103,7 +103,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { /// to be the enclosing (async) block/function/closure fn describe_enclosure(&self, hir_id: hir::HirId) -> Option<&'static str> { let hir = self.tcx.hir(); - let node = hir.find(hir_id)?; + let node = self.tcx.opt_hir_node(hir_id)?; match &node { hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, _, body_id), .. }) => { self.describe_coroutine(*body_id).or_else(|| { diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs index f7e8dc62a62..9073cd6ac47 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs @@ -530,7 +530,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { // FIXME: Add check for trait bound that is already present, particularly `?Sized` so we // don't suggest `T: Sized + ?Sized`. - while let Some(node) = self.tcx.hir().find_by_def_id(body_id) { + while let Some(node) = self.tcx.opt_hir_node_by_def_id(body_id) { match node { hir::Node::Item(hir::Item { ident, @@ -732,7 +732,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let Some(typeck_results) = &self.typeck_results else { return false; }; - let hir::Node::Expr(expr) = self.tcx.hir().get(*arg_hir_id) else { + let hir::Node::Expr(expr) = self.tcx.hir_node(*arg_hir_id) else { return false; }; let Some(arg_ty) = typeck_results.expr_ty_adjusted_opt(expr) else { @@ -785,7 +785,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { kind: hir::ExprKind::AddrOf(hir::BorrowKind::Ref, hir::Mutability::Not, expr), .. - })) = self.tcx.hir().find(*arg_hir_id) + })) = self.tcx.opt_hir_node(*arg_hir_id) { let derefs = "*".repeat(steps); err.span_suggestion_verbose( @@ -821,7 +821,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { if self.predicate_may_hold(&obligation) && self.predicate_must_hold_modulo_regions(&sized_obligation) { - let call_node = self.tcx.hir().get(*call_hir_id); + let call_node = self.tcx.hir_node(*call_hir_id); let msg = "consider dereferencing here"; let is_receiver = matches!( call_node, @@ -1046,7 +1046,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let Res::Local(hir_id) = path.res else { return; }; - let Some(hir::Node::Pat(pat)) = self.tcx.hir().find(hir_id) else { + let Some(hir::Node::Pat(pat)) = self.tcx.opt_hir_node(hir_id) else { return; }; let Some(hir::Node::Local(hir::Local { ty: None, init: Some(init), .. })) = @@ -1106,7 +1106,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { else { return false; }; - let arg_node = self.tcx.hir().get(*arg_hir_id); + let arg_node = self.tcx.hir_node(*arg_hir_id); let Node::Expr(Expr { kind: hir::ExprKind::Path(_), .. }) = arg_node else { return false }; let clone_trait = self.tcx.require_lang_item(LangItem::Clone, None); @@ -1387,14 +1387,21 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { err.message = vec![(rustc_errors::DiagnosticMessage::from(msg), Style::NoStyle)]; } + let mut file = None; err.span_label( span, format!( "the trait `{}` is not implemented for `{}`", old_pred.print_modifiers_and_trait_path(), - old_pred.self_ty().skip_binder(), + self.tcx.short_ty_string(old_pred.self_ty().skip_binder(), &mut file), ), ); + if let Some(file) = file { + err.note(format!( + "the full type name has been written to '{}'", + file.display() + )); + } if imm_ref_self_ty_satisfies_pred && mut_ref_self_ty_satisfies_pred { err.span_suggestions( @@ -1628,7 +1635,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind && let Res::Local(hir_id) = path.res - && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(hir_id) + && let Some(hir::Node::Pat(binding)) = self.tcx.opt_hir_node(hir_id) && let Some(hir::Node::Local(local)) = self.tcx.hir().find_parent(binding.hir_id) && let None = local.ty && let Some(binding_expr) = local.init @@ -1644,7 +1651,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { fn suggest_remove_await(&self, obligation: &PredicateObligation<'tcx>, err: &mut Diagnostic) { let hir = self.tcx.hir(); if let ObligationCauseCode::AwaitableExpr(hir_id) = obligation.cause.code().peel_derives() - && let hir::Node::Expr(expr) = hir.get(*hir_id) + && let hir::Node::Expr(expr) = self.tcx.hir_node(*hir_id) { // FIXME: use `obligation.predicate.kind()...trait_ref.self_ty()` to see if we have `()` // and if not maybe suggest doing something else? If we kept the expression around we @@ -1794,7 +1801,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { trait_pred: ty::PolyTraitPredicate<'tcx>, ) -> bool { let hir = self.tcx.hir(); - let node = hir.find_by_def_id(obligation.cause.body_id); + let node = self.tcx.opt_hir_node_by_def_id(obligation.cause.body_id); if let Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, _, body_id), .. })) = node && let hir::ExprKind::Block(blk, _) = &hir.body(*body_id).value.kind && sig.decl.output.span().overlaps(span) @@ -1829,9 +1836,8 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } fn return_type_span(&self, obligation: &PredicateObligation<'tcx>) -> Option<Span> { - let hir = self.tcx.hir(); let Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, ..), .. })) = - hir.find_by_def_id(obligation.cause.body_id) + self.tcx.opt_hir_node_by_def_id(obligation.cause.body_id) else { return None; }; @@ -1923,7 +1929,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } let hir = self.tcx.hir(); - let node = hir.find_by_def_id(obligation.cause.body_id); + let node = self.tcx.opt_hir_node_by_def_id(obligation.cause.body_id); if let Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. })) = node { @@ -2041,7 +2047,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let ty::FnPtr(found) = found.kind() else { return; }; - let Some(Node::Expr(arg)) = self.tcx.hir().find(*arg_hir_id) else { + let Some(Node::Expr(arg)) = self.tcx.opt_hir_node(*arg_hir_id) else { return; }; let hir::ExprKind::Path(path) = arg.kind else { @@ -2167,7 +2173,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { }) .collect(); err.multipart_suggestion( - format!("consider wrapping the function in a closure"), + "consider wrapping the function in a closure", vec![ (arg.span.shrink_to_lo(), format!("|{}| ", closure_names.join(", "))), (arg.span.shrink_to_hi(), format!("({})", call_names.join(", "))), @@ -2917,22 +2923,17 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } } ObligationCauseCode::Coercion { source, target } => { - let (source, source_file) = - self.tcx.short_ty_string(self.resolve_vars_if_possible(source)); - let (target, target_file) = - self.tcx.short_ty_string(self.resolve_vars_if_possible(target)); + let mut file = None; + let source = + self.tcx.short_ty_string(self.resolve_vars_if_possible(source), &mut file); + let target = + self.tcx.short_ty_string(self.resolve_vars_if_possible(target), &mut file); err.note(with_forced_trimmed_paths!(format!( "required for the cast from `{source}` to `{target}`", ))); - if let Some(file) = source_file { - err.note(format!( - "the full name for the source type has been written to '{}'", - file.display(), - )); - } - if let Some(file) = target_file { + if let Some(file) = file { err.note(format!( - "the full name for the target type has been written to '{}'", + "the full name for the type has been written to '{}'", file.display(), )); } @@ -2986,7 +2987,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } ObligationCauseCode::VariableType(hir_id) => { let parent_node = self.tcx.hir().parent_id(hir_id); - match self.tcx.hir().find(parent_node) { + match self.tcx.opt_hir_node(parent_node) { Some(Node::Local(hir::Local { ty: Some(ty), .. })) => { err.span_suggestion_verbose( ty.span.shrink_to_lo(), @@ -3130,7 +3131,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { "all values captured by value by a closure must have a statically known size", ); let hir::ExprKind::Closure(closure) = - self.tcx.hir().get_by_def_id(closure_def_id).expect_expr().kind + self.tcx.hir_node_by_def_id(closure_def_id).expect_expr().kind else { bug!("expected closure in SizedClosureCapture obligation"); }; @@ -3185,9 +3186,9 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { // Don't print the tuple of capture types 'print: { if !is_upvar_tys_infer_tuple { - let msg = with_forced_trimmed_paths!(format!( - "required because it appears within the type `{ty}`", - )); + let mut file = None; + let ty_str = self.tcx.short_ty_string(ty, &mut file); + let msg = format!("required because it appears within the type `{ty_str}`"); match ty.kind() { ty::Adt(def, _) => match self.tcx.opt_item_ident(def.did()) { Some(ident) => err.span_note(ident.span, msg), @@ -3284,8 +3285,9 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let mut parent_trait_pred = self.resolve_vars_if_possible(data.derived.parent_trait_pred); let parent_def_id = parent_trait_pred.def_id(); - let (self_ty, file) = - self.tcx.short_ty_string(parent_trait_pred.skip_binder().self_ty()); + let mut file = None; + let self_ty = + self.tcx.short_ty_string(parent_trait_pred.skip_binder().self_ty(), &mut file); let msg = format!( "required for `{self_ty}` to implement `{}`", parent_trait_pred.print_modifiers_and_trait_path() @@ -3382,8 +3384,10 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { count, pluralize!(count) )); - let (self_ty, file) = - self.tcx.short_ty_string(parent_trait_pred.skip_binder().self_ty()); + let mut file = None; + let self_ty = self + .tcx + .short_ty_string(parent_trait_pred.skip_binder().self_ty(), &mut file); err.note(format!( "required for `{self_ty}` to implement `{}`", parent_trait_pred.print_modifiers_and_trait_path() @@ -3701,8 +3705,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { call_hir_id: HirId, ) { let tcx = self.tcx; - let hir = tcx.hir(); - if let Some(Node::Expr(expr)) = hir.find(arg_hir_id) + if let Some(Node::Expr(expr)) = tcx.opt_hir_node(arg_hir_id) && let Some(typeck_results) = &self.typeck_results { if let hir::Expr { kind: hir::ExprKind::Block(block, _), .. } = expr { @@ -3735,7 +3738,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { && let hir::ExprKind::Closure(hir::Closure { body, fn_decl_span, .. }) = value.kind - && let body = hir.body(*body) + && let body = tcx.hir().body(*body) && !matches!(body.value.kind, hir::ExprKind::Block(..)) { // Check if the failed predicate was an expectation of a closure type @@ -3818,9 +3821,9 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind && let hir::Path { res: Res::Local(hir_id), .. } = path - && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(*hir_id) + && let Some(hir::Node::Pat(binding)) = self.tcx.opt_hir_node(*hir_id) && let parent_hir_id = self.tcx.hir().parent_id(binding.hir_id) - && let Some(hir::Node::Local(local)) = self.tcx.hir().find(parent_hir_id) + && let Some(hir::Node::Local(local)) = self.tcx.opt_hir_node(parent_hir_id) && let Some(binding_expr) = local.init { // If the expression we're calling on is a binding, we want to point at the @@ -3831,7 +3834,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { self.point_at_chain(expr, typeck_results, type_diffs, param_env, err); } } - let call_node = hir.find(call_hir_id); + let call_node = tcx.opt_hir_node(call_hir_id); if let Some(Node::Expr(hir::Expr { kind: hir::ExprKind::MethodCall(path, rcvr, ..), .. })) = call_node @@ -3841,7 +3844,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } } - if let Some(Node::Expr(expr)) = hir.find(call_hir_id) { + if let Some(Node::Expr(expr)) = tcx.opt_hir_node(call_hir_id) { if let hir::ExprKind::Call(hir::Expr { span, .. }, _) | hir::ExprKind::MethodCall( hir::PathSegment { ident: Ident { span, .. }, .. }, @@ -4002,7 +4005,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { continue; }; let hir = tcx.hir(); - let node = hir.get_by_def_id(hir.get_parent_item(expr.hir_id).def_id); + let node = tcx.hir_node_by_def_id(hir.get_parent_item(expr.hir_id).def_id); let pred = ty::Binder::dummy(ty::TraitPredicate { trait_ref: ty::TraitRef::from_lang_item( @@ -4078,7 +4081,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind && let hir::Path { res: Res::Local(hir_id), .. } = path - && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(*hir_id) + && let Some(hir::Node::Pat(binding)) = self.tcx.opt_hir_node(*hir_id) && let Some(parent) = self.tcx.hir().find_parent(binding.hir_id) { // We've reached the root of the method call chain... @@ -4457,7 +4460,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } return; }; - let Some(hir::Node::TraitItem(item)) = self.tcx.hir().find_by_def_id(fn_def_id) else { + let Some(hir::Node::TraitItem(item)) = self.tcx.opt_hir_node_by_def_id(fn_def_id) else { return; }; @@ -4709,6 +4712,7 @@ impl<'a, 'hir> hir::intravisit::Visitor<'hir> for ReplaceImplTraitVisitor<'a> { } pub(super) fn get_explanation_based_on_obligation<'tcx>( + tcx: TyCtxt<'tcx>, obligation: &PredicateObligation<'tcx>, trait_ref: ty::PolyTraitRef<'tcx>, trait_predicate: &ty::PolyTraitPredicate<'tcx>, @@ -4729,13 +4733,13 @@ pub(super) fn get_explanation_based_on_obligation<'tcx>( pre_message, trait_predicate.print_modifiers_and_trait_path(), desc, - trait_ref.skip_binder().self_ty(), + tcx.short_ty_string(trait_ref.skip_binder().self_ty(), &mut None), ), None => format!( "{}the trait `{}` is not implemented for `{}`", pre_message, trait_predicate.print_modifiers_and_trait_path(), - trait_ref.skip_binder().self_ty(), + tcx.short_ty_string(trait_ref.skip_binder().self_ty(), &mut None), ), } } @@ -4778,7 +4782,7 @@ pub fn suggest_desugaring_async_fn_to_impl_future_in_trait<'tcx>( return None; }; - let future = tcx.hir().get_by_def_id(opaque_def_id).expect_item().expect_opaque_ty(); + let future = tcx.hir_node_by_def_id(opaque_def_id).expect_item().expect_opaque_ty(); let Some(hir::GenericBound::LangItemTrait(_, _, _, generics)) = future.bounds.get(0) else { // `async fn` should always lower to a lang item bound... but don't ICE. return None; diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs index 8fa0dceda87..7f6e48f4464 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs @@ -444,21 +444,22 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { // reported on the binding definition (#56607). return; } - let (post_message, pre_message, type_def, file_note) = self + let mut file = None; + let (post_message, pre_message, type_def) = self .get_parent_trait_ref(obligation.cause.code()) .map(|(t, s)| { - let (t, file) = self.tcx.short_ty_string(t); + let t = self.tcx.short_ty_string(t, &mut file); ( format!(" in `{t}`"), format!("within `{t}`, "), s.map(|s| (format!("within this `{t}`"), s)), - file.map(|file| format!( - "the full trait has been written to '{}'", - file.display(), - )) ) }) .unwrap_or_default(); + let file_note = file.map(|file| format!( + "the full trait has been written to '{}'", + file.display(), + )); let OnUnimplementedNote { message, @@ -547,6 +548,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } let explanation = get_explanation_based_on_obligation( + self.tcx, &obligation, trait_ref, &trait_predicate, @@ -984,13 +986,13 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { fn fn_arg_obligation(&self, obligation: &PredicateObligation<'tcx>) -> bool { if let ObligationCauseCode::FunctionArgumentObligation { arg_hir_id, .. } = obligation.cause.code() - && let Some(Node::Expr(arg)) = self.tcx.hir().find(*arg_hir_id) + && let Some(Node::Expr(arg)) = self.tcx.opt_hir_node(*arg_hir_id) && let arg = arg.peel_borrows() && let hir::ExprKind::Path(hir::QPath::Resolved( None, hir::Path { res: hir::def::Res::Local(hir_id), .. }, )) = arg.kind - && let Some(Node::Pat(pat)) = self.tcx.hir().find(*hir_id) + && let Some(Node::Pat(pat)) = self.tcx.opt_hir_node(*hir_id) && let Some(preds) = self.reported_trait_errors.borrow().get(&pat.span) && preds.contains(&obligation.predicate) { @@ -1028,7 +1030,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } } let hir_id = self.tcx.local_def_id_to_hir_id(obligation.cause.body_id); - let body_id = match self.tcx.hir().find(hir_id) { + let body_id = match self.tcx.opt_hir_node(hir_id) { Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. })) => { body_id } @@ -1069,7 +1071,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { if !self.tcx.is_diagnostic_item(sym::Result, def.did()) { return None; } - Some(arg.as_type()?) + arg.as_type() }; let mut suggested = false; @@ -1154,7 +1156,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind && let hir::Path { res: hir::def::Res::Local(hir_id), .. } = path - && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(*hir_id) + && let Some(hir::Node::Pat(binding)) = self.tcx.opt_hir_node(*hir_id) && let Some(parent) = self.tcx.hir().find_parent(binding.hir_id) { // We've reached the root of the method call chain... @@ -2499,7 +2501,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ident: trait_name, kind: hir::ItemKind::Trait(_, _, _, _, trait_item_refs), .. - })) = self.tcx.hir().find_by_def_id(local_def_id) + })) = self.tcx.opt_hir_node_by_def_id(local_def_id) && let Some(method_ref) = trait_item_refs .iter() .find(|item_ref| item_ref.ident == *assoc_item_name) @@ -3525,20 +3527,30 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } match obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(ct)) => { - let ty::ConstKind::Unevaluated(uv) = ct.kind() else { + ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(ct)) => match ct.kind() { + ty::ConstKind::Unevaluated(uv) => { + let mut err = + self.tcx.sess.struct_span_err(span, "unconstrained generic constant"); + let const_span = self.tcx.def_span(uv.def); + match self.tcx.sess.source_map().span_to_snippet(const_span) { + Ok(snippet) => err.help(format!( + "try adding a `where` bound using this expression: `where [(); {snippet}]:`" + )), + _ => err.help("consider adding a `where` bound using this expression"), + }; + Some(err) + } + ty::ConstKind::Expr(_) => { + let err = self + .tcx + .sess + .struct_span_err(span, format!("unconstrained generic constant `{ct}`")); + Some(err) + } + _ => { bug!("const evaluatable failed for non-unevaluated const `{ct:?}`"); - }; - let mut err = self.tcx.sess.struct_span_err(span, "unconstrained generic constant"); - let const_span = self.tcx.def_span(uv.def); - match self.tcx.sess.source_map().span_to_snippet(const_span) { - Ok(snippet) => err.help(format!( - "try adding a `where` bound using this expression: `where [(); {snippet}]:`" - )), - _ => err.help("consider adding a `where` bound using this expression"), - }; - Some(err) - } + } + }, _ => { span_bug!( span, diff --git a/compiler/rustc_ty_utils/src/assoc.rs b/compiler/rustc_ty_utils/src/assoc.rs index 7a81570e55b..db37bec4b82 100644 --- a/compiler/rustc_ty_utils/src/assoc.rs +++ b/compiler/rustc_ty_utils/src/assoc.rs @@ -345,8 +345,7 @@ fn associated_type_for_impl_trait_in_impl( let impl_local_def_id = tcx.local_parent(impl_fn_def_id); let decl = tcx - .hir() - .find_by_def_id(impl_fn_def_id) + .opt_hir_node_by_def_id(impl_fn_def_id) .expect("expected item") .fn_decl() .expect("expected decl"); diff --git a/compiler/rustc_ty_utils/src/implied_bounds.rs b/compiler/rustc_ty_utils/src/implied_bounds.rs index eef90dc6dac..3f9bd509b08 100644 --- a/compiler/rustc_ty_utils/src/implied_bounds.rs +++ b/compiler/rustc_ty_utils/src/implied_bounds.rs @@ -161,7 +161,7 @@ fn assumed_wf_types<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> &'tcx [(Ty<' } fn fn_sig_spans(tcx: TyCtxt<'_>, def_id: LocalDefId) -> impl Iterator<Item = Span> + '_ { - let node = tcx.hir().get(tcx.local_def_id_to_hir_id(def_id)); + let node = tcx.hir_node_by_def_id(def_id); if let Some(decl) = node.fn_decl() { decl.inputs.iter().map(|ty| ty.span).chain(iter::once(decl.output.span())) } else { diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index d896873fadd..7918965e04b 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -831,7 +831,10 @@ fn coroutine_layout<'tcx>( Assigned(_) => bug!("assignment does not match variant"), Ineligible(_) => false, }) - .map(|local| subst_field(info.field_tys[*local].ty)); + .map(|local| { + let field_ty = subst_field(info.field_tys[*local].ty); + Ty::new_maybe_uninit(tcx, field_ty) + }); let mut variant = univariant_uninterned( cx, diff --git a/compiler/rustc_ty_utils/src/sig_types.rs b/compiler/rustc_ty_utils/src/sig_types.rs index 7c0261c818f..b155a4ac87b 100644 --- a/compiler/rustc_ty_utils/src/sig_types.rs +++ b/compiler/rustc_ty_utils/src/sig_types.rs @@ -28,7 +28,7 @@ pub(crate) fn walk_types<'tcx, V: SpannedTypeVisitor<'tcx>>( // Walk over the signature of the function DefKind::AssocFn | DefKind::Fn => { let ty_sig = tcx.fn_sig(item).instantiate_identity(); - let hir_sig = tcx.hir().get_by_def_id(item).fn_decl().unwrap(); + let hir_sig = tcx.hir_node_by_def_id(item).fn_decl().unwrap(); // Walk over the inputs and outputs manually in order to get good spans for them. visitor.visit(hir_sig.output.span(), ty_sig.output()); for (hir, ty) in hir_sig.inputs.iter().zip(ty_sig.inputs().iter()) { @@ -42,7 +42,7 @@ pub(crate) fn walk_types<'tcx, V: SpannedTypeVisitor<'tcx>>( DefKind::TyAlias {..} | DefKind::AssocTy | // Walk over the type of the item DefKind::Static(_) | DefKind::Const | DefKind::AssocConst | DefKind::AnonConst => { - let span = match tcx.hir().get_by_def_id(item).ty() { + let span = match tcx.hir_node_by_def_id(item).ty() { Some(ty) => ty.span, _ => tcx.def_span(item), }; @@ -70,11 +70,11 @@ pub(crate) fn walk_types<'tcx, V: SpannedTypeVisitor<'tcx>>( DefKind::InlineConst | DefKind::Closure => {} DefKind::Impl { of_trait } => { if of_trait { - let span = tcx.hir().get_by_def_id(item).expect_item().expect_impl().of_trait.unwrap().path.span; + let span = tcx.hir_node_by_def_id(item).expect_item().expect_impl().of_trait.unwrap().path.span; let args = &tcx.impl_trait_ref(item).unwrap().instantiate_identity().args[1..]; visitor.visit(span, args)?; } - let span = match tcx.hir().get_by_def_id(item).ty() { + let span = match tcx.hir_node_by_def_id(item).ty() { Some(ty) => ty.span, _ => tcx.def_span(item), }; diff --git a/compiler/rustc_ty_utils/src/ty.rs b/compiler/rustc_ty_utils/src/ty.rs index 56e84b6015d..2158aacab03 100644 --- a/compiler/rustc_ty_utils/src/ty.rs +++ b/compiler/rustc_ty_utils/src/ty.rs @@ -74,7 +74,7 @@ fn sized_constraint_for_ty<'tcx>( } fn defaultness(tcx: TyCtxt<'_>, def_id: LocalDefId) -> hir::Defaultness { - match tcx.hir().get_by_def_id(def_id) { + match tcx.hir_node_by_def_id(def_id) { hir::Node::Item(hir::Item { kind: hir::ItemKind::Impl(impl_), .. }) => impl_.defaultness, hir::Node::ImplItem(hir::ImplItem { defaultness, .. }) | hir::Node::TraitItem(hir::TraitItem { defaultness, .. }) => *defaultness, @@ -300,7 +300,7 @@ fn issue33140_self_ty(tcx: TyCtxt<'_>, def_id: DefId) -> Option<EarlyBinder<Ty<' /// Check if a function is async. fn asyncness(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Asyncness { - let node = tcx.hir().get_by_def_id(def_id); + let node = tcx.hir_node_by_def_id(def_id); node.fn_sig().map_or(ty::Asyncness::No, |sig| match sig.header.asyncness { hir::IsAsync::Async(_) => ty::Asyncness::Yes, hir::IsAsync::NotAsync => ty::Asyncness::No, diff --git a/compiler/rustc_type_ir/src/canonical.rs b/compiler/rustc_type_ir/src/canonical.rs index 572c6f201d3..5bc2bfe2893 100644 --- a/compiler/rustc_type_ir/src/canonical.rs +++ b/compiler/rustc_type_ir/src/canonical.rs @@ -119,12 +119,7 @@ where /// a copy of the canonical value in some other inference context, /// with fresh inference variables replacing the canonical values. #[derive(derivative::Derivative)] -#[derivative( - Clone(bound = ""), - Hash(bound = ""), - Copy(bound = "CanonicalVarKind<I>: Copy"), - Debug(bound = "") -)] +#[derivative(Clone(bound = ""), Copy(bound = ""), Hash(bound = ""), Debug(bound = ""))] #[cfg_attr(feature = "nightly", derive(TyDecodable, TyEncodable, HashStable_NoContext))] pub struct CanonicalVarInfo<I: Interner> { pub kind: CanonicalVarKind<I>, @@ -207,7 +202,7 @@ impl<I: Interner> CanonicalVarInfo<I> { /// in the type-theory sense of the term -- i.e., a "meta" type system /// that analyzes type-like values. #[derive(derivative::Derivative)] -#[derivative(Clone(bound = ""), Hash(bound = ""), Debug(bound = ""))] +#[derivative(Clone(bound = ""), Copy(bound = ""), Hash(bound = ""), Debug(bound = ""))] #[cfg_attr(feature = "nightly", derive(TyDecodable, TyEncodable, HashStable_NoContext))] pub enum CanonicalVarKind<I: Interner> { /// Some kind of type inference variable. @@ -234,15 +229,6 @@ pub enum CanonicalVarKind<I: Interner> { PlaceholderConst(I::PlaceholderConst, I::Ty), } -impl<I: Interner> Copy for CanonicalVarKind<I> -where - I::PlaceholderTy: Copy, - I::PlaceholderRegion: Copy, - I::PlaceholderConst: Copy, - I::Ty: Copy, -{ -} - impl<I: Interner> PartialEq for CanonicalVarKind<I> { fn eq(&self, other: &Self) -> bool { match (self, other) { diff --git a/compiler/rustc_type_ir/src/const_kind.rs b/compiler/rustc_type_ir/src/const_kind.rs index 879de58f100..0aaaad5af05 100644 --- a/compiler/rustc_type_ir/src/const_kind.rs +++ b/compiler/rustc_type_ir/src/const_kind.rs @@ -10,6 +10,7 @@ use self::ConstKind::*; #[derive(derivative::Derivative)] #[derivative( Clone(bound = ""), + Copy(bound = ""), PartialOrd(bound = ""), PartialOrd = "feature_allow_slow_enum", Ord(bound = ""), diff --git a/compiler/rustc_type_ir/src/predicate_kind.rs b/compiler/rustc_type_ir/src/predicate_kind.rs index b567fa8e2f6..8c4d0fda6af 100644 --- a/compiler/rustc_type_ir/src/predicate_kind.rs +++ b/compiler/rustc_type_ir/src/predicate_kind.rs @@ -8,7 +8,7 @@ use crate::Interner; /// A clause is something that can appear in where bounds or be inferred /// by implied bounds. #[derive(derivative::Derivative)] -#[derivative(Clone(bound = ""), Hash(bound = ""))] +#[derivative(Clone(bound = ""), Copy(bound = ""), Hash(bound = ""))] #[cfg_attr(feature = "nightly", derive(TyEncodable, TyDecodable, HashStable_NoContext))] pub enum ClauseKind<I: Interner> { /// Corresponds to `where Foo: Bar<A, B, C>`. `Foo` here would be @@ -37,18 +37,6 @@ pub enum ClauseKind<I: Interner> { ConstEvaluatable(I::Const), } -impl<I: Interner> Copy for ClauseKind<I> -where - I::Ty: Copy, - I::Const: Copy, - I::GenericArg: Copy, - I::TraitPredicate: Copy, - I::ProjectionPredicate: Copy, - I::TypeOutlivesPredicate: Copy, - I::RegionOutlivesPredicate: Copy, -{ -} - impl<I: Interner> PartialEq for ClauseKind<I> { fn eq(&self, other: &Self) -> bool { match (self, other) { @@ -120,7 +108,13 @@ where } #[derive(derivative::Derivative)] -#[derivative(Clone(bound = ""), Hash(bound = ""), PartialEq(bound = ""), Eq(bound = ""))] +#[derivative( + Clone(bound = ""), + Copy(bound = ""), + Hash(bound = ""), + PartialEq(bound = ""), + Eq(bound = "") +)] #[cfg_attr(feature = "nightly", derive(TyEncodable, TyDecodable, HashStable_NoContext))] pub enum PredicateKind<I: Interner> { /// Prove a clause @@ -169,19 +163,6 @@ pub enum PredicateKind<I: Interner> { AliasRelate(I::Term, I::Term, AliasRelationDirection), } -impl<I: Interner> Copy for PredicateKind<I> -where - I::DefId: Copy, - I::Const: Copy, - I::GenericArgs: Copy, - I::Term: Copy, - I::CoercePredicate: Copy, - I::SubtypePredicate: Copy, - I::NormalizesTo: Copy, - ClauseKind<I>: Copy, -{ -} - impl<I: Interner> TypeFoldable<I> for PredicateKind<I> where I::DefId: TypeFoldable<I>, diff --git a/compiler/rustc_type_ir/src/region_kind.rs b/compiler/rustc_type_ir/src/region_kind.rs index 4157d49287c..3b5e41e8d85 100644 --- a/compiler/rustc_type_ir/src/region_kind.rs +++ b/compiler/rustc_type_ir/src/region_kind.rs @@ -115,6 +115,7 @@ use self::RegionKind::*; #[derive(derivative::Derivative)] #[derivative( Clone(bound = ""), + Copy(bound = ""), PartialOrd(bound = ""), PartialOrd = "feature_allow_slow_enum", Ord(bound = ""), @@ -189,18 +190,6 @@ const fn regionkind_discriminant<I: Interner>(value: &RegionKind<I>) -> usize { } } -// This is manually implemented because a derive would require `I: Copy` -impl<I: Interner> Copy for RegionKind<I> -where - I::EarlyParamRegion: Copy, - I::BoundRegion: Copy, - I::LateParamRegion: Copy, - I::InferRegion: Copy, - I::PlaceholderRegion: Copy, - I::ErrorGuaranteed: Copy, -{ -} - // This is manually implemented because a derive would require `I: PartialEq` impl<I: Interner> PartialEq for RegionKind<I> { #[inline] diff --git a/compiler/rustc_type_ir/src/ty_kind.rs b/compiler/rustc_type_ir/src/ty_kind.rs index a7a5cae254c..72ca9199a53 100644 --- a/compiler/rustc_type_ir/src/ty_kind.rs +++ b/compiler/rustc_type_ir/src/ty_kind.rs @@ -111,6 +111,7 @@ pub enum AliasKind { #[derive(derivative::Derivative)] #[derivative( Clone(bound = ""), + Copy(bound = ""), PartialOrd(bound = ""), PartialOrd = "feature_allow_slow_enum", Ord(bound = ""), diff --git a/compiler/stable_mir/src/compiler_interface.rs b/compiler/stable_mir/src/compiler_interface.rs index 17c5212fb9c..2fac59e71fd 100644 --- a/compiler/stable_mir/src/compiler_interface.rs +++ b/compiler/stable_mir/src/compiler_interface.rs @@ -69,9 +69,15 @@ pub trait Context { /// Returns if the ADT is a box. fn adt_is_box(&self, def: AdtDef) -> bool; + /// Returns whether this ADT is simd. + fn adt_is_simd(&self, def: AdtDef) -> bool; + /// Retrieve the function signature for the given generic arguments. fn fn_sig(&self, def: FnDef, args: &GenericArgs) -> PolyFnSig; + /// Retrieve the closure signature for the given generic arguments. + fn closure_sig(&self, args: &GenericArgs) -> PolyFnSig; + /// The number of variants in this ADT. fn adt_variants_len(&self, def: AdtDef) -> usize; diff --git a/compiler/stable_mir/src/mir/body.rs b/compiler/stable_mir/src/mir/body.rs index 663275d9a0f..3dfe7096399 100644 --- a/compiler/stable_mir/src/mir/body.rs +++ b/compiler/stable_mir/src/mir/body.rs @@ -228,7 +228,7 @@ pub struct InlineAsmOperand { pub raw_rpr: String, } -#[derive(Clone, Debug, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, Eq, PartialEq)] pub enum UnwindAction { Continue, Unreachable, @@ -248,7 +248,7 @@ pub enum AssertMessage { MisalignedPointerDereference { required: Operand, found: Operand }, } -#[derive(Clone, Debug, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, Eq, PartialEq)] pub enum BinOp { Add, AddUnchecked, @@ -278,8 +278,6 @@ impl BinOp { /// Return the type of this operation for the given input Ty. /// This function does not perform type checking, and it currently doesn't handle SIMD. pub fn ty(&self, lhs_ty: Ty, rhs_ty: Ty) -> Ty { - assert!(lhs_ty.kind().is_primitive()); - assert!(rhs_ty.kind().is_primitive()); match self { BinOp::Add | BinOp::AddUnchecked @@ -293,20 +291,30 @@ impl BinOp { | BinOp::BitAnd | BinOp::BitOr => { assert_eq!(lhs_ty, rhs_ty); + assert!(lhs_ty.kind().is_primitive()); lhs_ty } - BinOp::Shl | BinOp::ShlUnchecked | BinOp::Shr | BinOp::ShrUnchecked | BinOp::Offset => { + BinOp::Shl | BinOp::ShlUnchecked | BinOp::Shr | BinOp::ShrUnchecked => { + assert!(lhs_ty.kind().is_primitive()); + assert!(rhs_ty.kind().is_primitive()); + lhs_ty + } + BinOp::Offset => { + assert!(lhs_ty.kind().is_raw_ptr()); + assert!(rhs_ty.kind().is_integral()); lhs_ty } BinOp::Eq | BinOp::Lt | BinOp::Le | BinOp::Ne | BinOp::Ge | BinOp::Gt => { assert_eq!(lhs_ty, rhs_ty); + let lhs_kind = lhs_ty.kind(); + assert!(lhs_kind.is_primitive() || lhs_kind.is_raw_ptr() || lhs_kind.is_fn_ptr()); Ty::bool_ty() } } } } -#[derive(Clone, Debug, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, Eq, PartialEq)] pub enum UnOp { Not, Neg, @@ -319,7 +327,7 @@ pub enum CoroutineKind { Gen(CoroutineSource), } -#[derive(Clone, Debug, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, Eq, PartialEq)] pub enum CoroutineSource { Block, Closure, @@ -343,7 +351,7 @@ pub enum FakeReadCause { } /// Describes what kind of retag is to be performed -#[derive(Clone, Debug, Eq, PartialEq, Hash)] +#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)] pub enum RetagKind { FnEntry, TwoPhase, @@ -351,7 +359,7 @@ pub enum RetagKind { Default, } -#[derive(Clone, Debug, Eq, PartialEq, Hash)] +#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)] pub enum Variance { Covariant, Invariant, @@ -862,7 +870,7 @@ pub enum Safety { Normal, } -#[derive(Clone, Debug, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, Eq, PartialEq)] pub enum PointerCoercion { /// Go from a fn-item type to a fn-pointer type. ReifyFnPointer, @@ -889,7 +897,7 @@ pub enum PointerCoercion { Unsize, } -#[derive(Clone, Debug, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, Eq, PartialEq)] pub enum CastKind { PointerExposeAddress, PointerFromExposedAddress, diff --git a/compiler/stable_mir/src/target.rs b/compiler/stable_mir/src/target.rs index bed1dbc4c00..41ec205cfc7 100644 --- a/compiler/stable_mir/src/target.rs +++ b/compiler/stable_mir/src/target.rs @@ -11,7 +11,7 @@ pub struct MachineInfo { impl MachineInfo { pub fn target() -> MachineInfo { - with(|cx| cx.target_info().clone()) + with(|cx| cx.target_info()) } pub fn target_endianess() -> Endian { diff --git a/compiler/stable_mir/src/ty.rs b/compiler/stable_mir/src/ty.rs index bea7702bd34..f473fd8dbb7 100644 --- a/compiler/stable_mir/src/ty.rs +++ b/compiler/stable_mir/src/ty.rs @@ -214,38 +214,62 @@ impl TyKind { if let TyKind::RigidTy(inner) = self { Some(inner) } else { None } } + #[inline] pub fn is_unit(&self) -> bool { matches!(self, TyKind::RigidTy(RigidTy::Tuple(data)) if data.is_empty()) } + #[inline] pub fn is_bool(&self) -> bool { matches!(self, TyKind::RigidTy(RigidTy::Bool)) } + #[inline] + pub fn is_char(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Char)) + } + + #[inline] pub fn is_trait(&self) -> bool { matches!(self, TyKind::RigidTy(RigidTy::Dynamic(_, _, DynKind::Dyn))) } + #[inline] pub fn is_enum(&self) -> bool { matches!(self, TyKind::RigidTy(RigidTy::Adt(def, _)) if def.kind() == AdtKind::Enum) } + #[inline] pub fn is_struct(&self) -> bool { matches!(self, TyKind::RigidTy(RigidTy::Adt(def, _)) if def.kind() == AdtKind::Struct) } + #[inline] pub fn is_union(&self) -> bool { matches!(self, TyKind::RigidTy(RigidTy::Adt(def, _)) if def.kind() == AdtKind::Union) } + #[inline] + pub fn is_adt(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Adt(..))) + } + + #[inline] + pub fn is_ref(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Ref(..))) + } + + #[inline] pub fn is_fn(&self) -> bool { matches!(self, TyKind::RigidTy(RigidTy::FnDef(..))) } + #[inline] pub fn is_fn_ptr(&self) -> bool { matches!(self, TyKind::RigidTy(RigidTy::FnPtr(..))) } + #[inline] pub fn is_primitive(&self) -> bool { matches!( self, @@ -259,6 +283,84 @@ impl TyKind { ) } + #[inline] + pub fn is_float(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Float(_))) + } + + #[inline] + pub fn is_integral(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Int(_) | RigidTy::Uint(_))) + } + + #[inline] + pub fn is_numeric(&self) -> bool { + self.is_integral() || self.is_float() + } + + #[inline] + pub fn is_signed(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Int(_))) + } + + #[inline] + pub fn is_str(&self) -> bool { + *self == TyKind::RigidTy(RigidTy::Str) + } + + #[inline] + pub fn is_slice(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Slice(_))) + } + + #[inline] + pub fn is_array(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Array(..))) + } + + #[inline] + pub fn is_mutable_ptr(&self) -> bool { + matches!( + self, + TyKind::RigidTy(RigidTy::RawPtr(_, Mutability::Mut)) + | TyKind::RigidTy(RigidTy::Ref(_, _, Mutability::Mut)) + ) + } + + #[inline] + pub fn is_raw_ptr(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::RawPtr(..))) + } + + /// Tests if this is any kind of primitive pointer type (reference, raw pointer, fn pointer). + #[inline] + pub fn is_any_ptr(&self) -> bool { + self.is_ref() || self.is_raw_ptr() || self.is_fn_ptr() + } + + #[inline] + pub fn is_coroutine(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Coroutine(..))) + } + + #[inline] + pub fn is_closure(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Closure(..))) + } + + #[inline] + pub fn is_box(&self) -> bool { + match self { + TyKind::RigidTy(RigidTy::Adt(def, _)) => def.is_box(), + _ => false, + } + } + + #[inline] + pub fn is_simd(&self) -> bool { + matches!(self, TyKind::RigidTy(RigidTy::Adt(def, _)) if def.is_simd()) + } + pub fn trait_principal(&self) -> Option<Binder<ExistentialTraitRef>> { if let TyKind::RigidTy(RigidTy::Dynamic(predicates, _, _)) = self { if let Some(Binder { value: ExistentialPredicate::Trait(trait_ref), bound_vars }) = @@ -300,12 +402,12 @@ impl TyKind { } } - /// Get the function signature for function like types (Fn, FnPtr, Closure, Coroutine) - /// FIXME(closure) + /// Get the function signature for function like types (Fn, FnPtr, and Closure) pub fn fn_sig(&self) -> Option<PolyFnSig> { match self { TyKind::RigidTy(RigidTy::FnDef(def, args)) => Some(with(|cx| cx.fn_sig(*def, args))), TyKind::RigidTy(RigidTy::FnPtr(sig)) => Some(sig.clone()), + TyKind::RigidTy(RigidTy::Closure(_def, args)) => Some(with(|cx| cx.closure_sig(args))), _ => None, } } @@ -481,6 +583,10 @@ impl AdtDef { with(|cx| cx.adt_is_box(*self)) } + pub fn is_simd(&self) -> bool { + with(|cx| cx.adt_is_simd(*self)) + } + /// The number of variants in this ADT. pub fn num_variants(&self) -> usize { with(|cx| cx.adt_variants_len(*self)) @@ -738,6 +844,7 @@ pub enum Abi { RiscvInterruptS, } +/// A binder represents a possibly generic type and its bound vars. #[derive(Clone, Debug, Eq, PartialEq)] pub struct Binder<T> { pub value: T, @@ -745,6 +852,16 @@ pub struct Binder<T> { } impl<T> Binder<T> { + /// Create a new binder with the given bound vars. + pub fn bind_with_vars(value: T, bound_vars: Vec<BoundVariableKind>) -> Self { + Binder { value, bound_vars } + } + + /// Create a new binder with no bounded variable. + pub fn dummy(value: T) -> Self { + Binder { value, bound_vars: vec![] } + } + pub fn skip_binder(self) -> T { self.value } |