diff options
310 files changed, 2974 insertions, 1427 deletions
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index bce88472f96..dacf929278a 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -292,6 +292,10 @@ jobs: - name: x86_64-gnu-distcheck os: ubuntu-20.04-8core-32gb env: {} + - name: x86_64-gnu-llvm-16 + env: + RUST_BACKTRACE: 1 + os: ubuntu-20.04-8core-32gb - name: x86_64-gnu-llvm-15 env: RUST_BACKTRACE: 1 diff --git a/Cargo.lock b/Cargo.lock index 358b2f2e924..da2e483fe61 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3181,7 +3181,6 @@ dependencies = [ "rustc_index", "rustc_macros", "rustc_serialize", - "serde_json", "smallvec", "stable_deref_trait", "stacker", diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs index c863acde7b0..f3af031ade4 100644 --- a/compiler/rustc_abi/src/layout.rs +++ b/compiler/rustc_abi/src/layout.rs @@ -79,7 +79,8 @@ pub trait LayoutCalculator { { // `ReprOptions.layout_seed` is a deterministic seed that we can use to // randomize field ordering with - let mut rng = Xoshiro128StarStar::seed_from_u64(repr.field_shuffle_seed); + let mut rng = + Xoshiro128StarStar::seed_from_u64(repr.field_shuffle_seed.as_u64()); // Shuffle the ordering of the fields optimizing.shuffle(&mut rng); @@ -461,8 +462,8 @@ pub trait LayoutCalculator { let all_indices = variants.indices(); let needs_disc = |index: VariantIdx| index != largest_variant_index && !absent(&variants[index]); - let niche_variants = all_indices.clone().find(|v| needs_disc(*v)).unwrap().index() - ..=all_indices.rev().find(|v| needs_disc(*v)).unwrap().index(); + let niche_variants = all_indices.clone().find(|v| needs_disc(*v)).unwrap() + ..=all_indices.rev().find(|v| needs_disc(*v)).unwrap(); let count = niche_variants.size_hint().1.unwrap() as u128; @@ -560,8 +561,7 @@ pub trait LayoutCalculator { tag: niche_scalar, tag_encoding: TagEncoding::Niche { untagged_variant: largest_variant_index, - niche_variants: (VariantIdx::new(*niche_variants.start()) - ..=VariantIdx::new(*niche_variants.end())), + niche_variants, niche_start, }, tag_field: 0, diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 7a3defd2a5d..a5cdaa547d8 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -9,9 +9,10 @@ use std::str::FromStr; use bitflags::bitflags; use rustc_data_structures::intern::Interned; +use rustc_data_structures::stable_hasher::Hash64; #[cfg(feature = "nightly")] use rustc_data_structures::stable_hasher::StableOrd; -use rustc_index::vec::{Idx, IndexSlice, IndexVec}; +use rustc_index::vec::{IndexSlice, IndexVec}; #[cfg(feature = "nightly")] use rustc_macros::HashStable_Generic; #[cfg(feature = "nightly")] @@ -77,12 +78,12 @@ pub struct ReprOptions { pub flags: ReprFlags, /// The seed to be used for randomizing a type's layout /// - /// Note: This could technically be a `[u8; 16]` (a `u128`) which would + /// Note: This could technically be a `Hash128` which would /// be the "most accurate" hash as it'd encompass the item and crate /// hash without loss, but it does pay the price of being larger. - /// Everything's a tradeoff, a `u64` seed should be sufficient for our + /// Everything's a tradeoff, a 64-bit seed should be sufficient for our /// purposes (primarily `-Z randomize-layout`) - pub field_shuffle_seed: u64, + pub field_shuffle_seed: Hash64, } impl ReprOptions { diff --git a/compiler/rustc_ast/src/node_id.rs b/compiler/rustc_ast/src/node_id.rs index daa82996b3d..d16741757d1 100644 --- a/compiler/rustc_ast/src/node_id.rs +++ b/compiler/rustc_ast/src/node_id.rs @@ -9,14 +9,14 @@ rustc_index::newtype_index! { /// /// [`DefId`]: rustc_span::def_id::DefId #[debug_format = "NodeId({})"] - pub struct NodeId {} + pub struct NodeId { + /// The [`NodeId`] used to represent the root of the crate. + const CRATE_NODE_ID = 0; + } } rustc_data_structures::define_id_collections!(NodeMap, NodeSet, NodeMapEntry, NodeId); -/// The [`NodeId`] used to represent the root of the crate. -pub const CRATE_NODE_ID: NodeId = NodeId::from_u32(0); - /// When parsing and at the beginning of doing expansions, we initially give all AST nodes /// this dummy AST [`NodeId`]. Then, during a later phase of expansion, we renumber them /// to have small, positive IDs. diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index c061a244cf5..08e7a4dfe5d 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -138,12 +138,10 @@ impl<'a, 'hir> ItemLowerer<'a, 'hir> { // Evaluate with the lifetimes in `params` in-scope. // This is used to track which lifetimes have already been defined, // and which need to be replicated when lowering an async fn. - match parent_hir.node().expect_item().kind { - hir::ItemKind::Impl(hir::Impl { of_trait, .. }) => { - lctx.is_in_trait_impl = of_trait.is_some(); - } - _ => {} - }; + + if let hir::ItemKind::Impl(impl_) = parent_hir.node().expect_item().kind { + lctx.is_in_trait_impl = impl_.of_trait.is_some(); + } match ctxt { AssocCtxt::Trait => hir::OwnerNode::TraitItem(lctx.lower_trait_item(item)), diff --git a/compiler/rustc_ast_passes/messages.ftl b/compiler/rustc_ast_passes/messages.ftl index a349fe6a3c4..ffca37ae9d5 100644 --- a/compiler/rustc_ast_passes/messages.ftl +++ b/compiler/rustc_ast_passes/messages.ftl @@ -231,7 +231,7 @@ ast_passes_feature_on_non_nightly = `#![feature]` may not be used on the {$chann .suggestion = remove the attribute .stable_since = the feature `{$name}` has been stable since `{$since}` and no longer requires an attribute to enable -ast_passes_incompatbile_features = `{$f1}` and `{$f2}` are incompatible, using them at the same time is not allowed +ast_passes_incompatible_features = `{$f1}` and `{$f2}` are incompatible, using them at the same time is not allowed .help = remove one of these features ast_passes_show_span = {$msg} diff --git a/compiler/rustc_ast_passes/src/errors.rs b/compiler/rustc_ast_passes/src/errors.rs index 27bbd237961..1732865f0bb 100644 --- a/compiler/rustc_ast_passes/src/errors.rs +++ b/compiler/rustc_ast_passes/src/errors.rs @@ -677,7 +677,7 @@ impl AddToDiagnostic for StableFeature { } #[derive(Diagnostic)] -#[diag(ast_passes_incompatbile_features)] +#[diag(ast_passes_incompatible_features)] #[help] pub struct IncompatibleFeatures { #[primary_span] diff --git a/compiler/rustc_borrowck/messages.ftl b/compiler/rustc_borrowck/messages.ftl index a3b6b5e8138..0b8123c9703 100644 --- a/compiler/rustc_borrowck/messages.ftl +++ b/compiler/rustc_borrowck/messages.ftl @@ -56,18 +56,6 @@ borrowck_returned_lifetime_short = borrowck_used_impl_require_static = the used `impl` has a `'static` requirement -borrowck_capture_kind_label = - capture is {$kind_desc} because of use here - -borrowck_var_borrow_by_use_place_in_generator = - borrow occurs due to use of {$place} in closure in generator - -borrowck_var_borrow_by_use_place_in_closure = - borrow occurs due to use of {$place} in closure - -borrowck_var_borrow_by_use_place = - borrow occurs due to use of {$place} - borrowck_borrow_due_to_use_generator = borrow occurs due to use in generator @@ -101,12 +89,63 @@ borrowck_capture_mut = borrowck_capture_move = capture is moved because of use here +borrowck_var_borrow_by_use_place_in_generator = + {$is_single_var -> + *[true] borrow occurs + [false] borrows occur + } due to use of {$place} in generator + +borrowck_var_borrow_by_use_place_in_closure = + {$is_single_var -> + *[true] borrow occurs + [false] borrows occur + } due to use of {$place} in closure + +borrowck_var_borrow_by_use_in_generator = + borrow occurs due to use in generator + +borrowck_var_borrow_by_use_in_closure = + borrow occurs due to use in closure + borrowck_var_move_by_use_place_in_generator = move occurs due to use of {$place} in generator borrowck_var_move_by_use_place_in_closure = move occurs due to use of {$place} in closure +borrowck_var_move_by_use_in_generator = + move occurs due to use in generator + +borrowck_var_move_by_use_in_closure = + move occurs due to use in closure + +borrowck_partial_var_move_by_use_in_generator = + variable {$is_partial -> + [true] partially moved + *[false] moved + } due to use in generator + +borrowck_partial_var_move_by_use_in_closure = + variable {$is_partial -> + [true] partially moved + *[false] moved + } due to use in closure + +borrowck_var_first_borrow_by_use_place_in_generator = + first borrow occurs due to use of {$place} in generator + +borrowck_var_first_borrow_by_use_place_in_closure = + first borrow occurs due to use of {$place} in closure + +borrowck_var_second_borrow_by_use_place_in_generator = + second borrow occurs due to use of {$place} in generator + +borrowck_var_second_borrow_by_use_place_in_closure = + second borrow occurs due to use of {$place} in closure + +borrowck_var_mutable_borrow_by_use_place_in_closure = + mutable borrow occurs due to use of {$place} in closure + borrowck_cannot_move_when_borrowed = cannot move out of {$place -> [value] value @@ -127,3 +166,90 @@ borrowck_opaque_type_non_generic_param = [true] cannot use static lifetime; use a bound lifetime instead or remove the lifetime parameter from the opaque type *[other] this generic parameter must be used with a generic {$kind} parameter } + +borrowck_moved_due_to_call = + {$place_name} {$is_partial -> + [true] partially moved + *[false] moved + } due to this {$is_loop_message -> + [true] call, in previous iteration of loop + *[false] call + } + +borrowck_moved_due_to_usage_in_operator = + {$place_name} {$is_partial -> + [true] partially moved + *[false] moved + } due to usage in {$is_loop_message -> + [true] operator, in previous iteration of loop + *[false] operator + } + +borrowck_moved_due_to_implicit_into_iter_call = + {$place_name} {$is_partial -> + [true] partially moved + *[false] moved + } due to this implicit call to {$is_loop_message -> + [true] `.into_iter()`, in previous iteration of loop + *[false] `.into_iter()` + } + +borrowck_moved_due_to_method_call = + {$place_name} {$is_partial -> + [true] partially moved + *[false] moved + } due to this method {$is_loop_message -> + [true] call, in previous iteration of loop + *[false] call + } + +borrowck_value_moved_here = + value {$is_partial -> + [true] partially moved + *[false] moved + } {$is_move_msg -> + [true] into closure here + *[false] here + }{$is_loop_message -> + [true] , in previous iteration of loop + *[false] {""} + } + +borrowck_consider_borrow_type_contents = + help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents + +borrowck_moved_a_fn_once_in_call = + this value implements `FnOnce`, which causes it to be moved when called + +borrowck_calling_operator_moves_lhs = + calling this operator moves the left-hand side + +borrowck_func_take_self_moved_place = + `{$func}` takes ownership of the receiver `self`, which moves {$place_name} + +borrowck_suggest_iterate_over_slice = + consider iterating over a slice of the `{$ty}`'s content to avoid moving into the `for` loop + +borrowck_suggest_create_freash_reborrow = + consider reborrowing the `Pin` instead of moving it + +borrowck_value_capture_here = + value captured {$is_within -> + [true] here by generator + *[false] here + } + +borrowck_move_out_place_here = + {$place} is moved here + +borrowck_closure_invoked_twice = + closure cannot be invoked more than once because it moves the variable `{$place_name}` out of its environment + +borrowck_closure_moved_twice = + closure cannot be moved more than once as it is not `Copy` due to moving the variable `{$place_name}` out of its environment + +borrowck_ty_no_impl_copy = + {$is_partial_move -> + [true] partial move + *[false] move + } occurs because {$place} has type `{$ty}`, which does not implement the `Copy` trait diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 6259ae47e89..a4a3c738f47 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -30,8 +30,8 @@ use crate::borrow_set::TwoPhaseActivation; use crate::borrowck_errors; use crate::diagnostics::conflict_errors::StorageDeadOrDrop::LocalStorageDead; -use crate::diagnostics::find_all_local_uses; use crate::diagnostics::mutability_errors::mut_borrow_of_mutable_ref; +use crate::diagnostics::{find_all_local_uses, CapturedMessageOpt}; use crate::{ borrow_set::BorrowData, diagnostics::Instance, prefixes::IsPrefixOf, InitializationRequiringAction, MirBorrowckCtxt, PrefixSet, WriteKind, @@ -183,13 +183,9 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let move_spans = self.move_spans(moved_place.as_ref(), move_out.source); let move_span = move_spans.args_or_use(); - let move_msg = if move_spans.for_closure() { " into closure" } else { "" }; + let is_move_msg = move_spans.for_closure(); - let loop_message = if location == move_out.source || move_site.traversed_back_edge { - ", in previous iteration of loop" - } else { - "" - }; + let is_loop_message = location == move_out.source || move_site.traversed_back_edge; if location == move_out.source { is_loop_move = true; @@ -206,17 +202,21 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { ); } + let msg_opt = CapturedMessageOpt { + is_partial_move, + is_loop_message, + is_move_msg, + is_loop_move, + maybe_reinitialized_locations_is_empty: maybe_reinitialized_locations + .is_empty(), + }; self.explain_captures( &mut err, span, move_span, move_spans, *moved_place, - partially_str, - loop_message, - move_msg, - is_loop_move, - maybe_reinitialized_locations.is_empty(), + msg_opt, ); } seen_spans.insert(move_span); @@ -282,12 +282,21 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { } if needs_note { - let span = if let Some(local) = place.as_local() { - Some(self.body.local_decls[local].source_info.span) + if let Some(local) = place.as_local() { + let span = self.body.local_decls[local].source_info.span; + err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Label { + is_partial_move, + ty, + place: ¬e_msg, + span, + }); } else { - None + err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Note { + is_partial_move, + ty, + place: ¬e_msg, + }); }; - self.note_type_does_not_implement_copy(&mut err, ¬e_msg, ty, span, partial_str); } if let UseSpans::FnSelfUse { @@ -827,11 +836,13 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { borrow_spans.var_path_only_subdiag(&mut err, crate::InitializationRequiringAction::Borrow); - move_spans.var_span_label( - &mut err, - format!("move occurs due to use{}", move_spans.describe()), - "moved", - ); + move_spans.var_subdiag(None, &mut err, None, |kind, var_span| { + use crate::session_diagnostics::CaptureVarCause::*; + match kind { + Some(_) => MoveUseInGenerator { var_span }, + None => MoveUseInClosure { var_span }, + } + }); self.explain_why_borrow_contains_point(location, borrow, None) .add_explanation_to_diagnostic( @@ -868,13 +879,15 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { borrow_span, &self.describe_any_place(borrow.borrowed_place.as_ref()), ); - borrow_spans.var_subdiag(&mut err, Some(borrow.kind), |kind, var_span| { + borrow_spans.var_subdiag(None, &mut err, Some(borrow.kind), |kind, var_span| { use crate::session_diagnostics::CaptureVarCause::*; let place = &borrow.borrowed_place; let desc_place = self.describe_any_place(place.as_ref()); match kind { - Some(_) => BorrowUsePlaceGenerator { place: desc_place, var_span }, - None => BorrowUsePlaceClosure { place: desc_place, var_span }, + Some(_) => { + BorrowUsePlaceGenerator { place: desc_place, var_span, is_single_var: true } + } + None => BorrowUsePlaceClosure { place: desc_place, var_span, is_single_var: true }, } }); @@ -988,16 +1001,26 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { immutable_section_description, "mutably borrow", ); - borrow_spans.var_span_label( + borrow_spans.var_subdiag( + None, &mut err, - format!( - "borrow occurs due to use of {}{}", - desc_place, - borrow_spans.describe(), - ), - "immutable", + Some(BorrowKind::Unique), + |kind, var_span| { + use crate::session_diagnostics::CaptureVarCause::*; + match kind { + Some(_) => BorrowUsePlaceGenerator { + place: desc_place, + var_span, + is_single_var: true, + }, + None => BorrowUsePlaceClosure { + place: desc_place, + var_span, + is_single_var: true, + }, + } + }, ); - return err; } else { first_borrow_desc = "immutable "; @@ -1070,32 +1093,48 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { }; if issued_spans == borrow_spans { - borrow_spans.var_span_label( - &mut err, - format!("borrows occur due to use of {}{}", desc_place, borrow_spans.describe(),), - gen_borrow_kind.describe_mutability(), - ); + borrow_spans.var_subdiag(None, &mut err, Some(gen_borrow_kind), |kind, var_span| { + use crate::session_diagnostics::CaptureVarCause::*; + match kind { + Some(_) => BorrowUsePlaceGenerator { + place: desc_place, + var_span, + is_single_var: false, + }, + None => { + BorrowUsePlaceClosure { place: desc_place, var_span, is_single_var: false } + } + } + }); } else { - let borrow_place = &issued_borrow.borrowed_place; - let borrow_place_desc = self.describe_any_place(borrow_place.as_ref()); - issued_spans.var_span_label( + issued_spans.var_subdiag( + Some(&self.infcx.tcx.sess.parse_sess.span_diagnostic), &mut err, - format!( - "first borrow occurs due to use of {}{}", - borrow_place_desc, - issued_spans.describe(), - ), - issued_borrow.kind.describe_mutability(), + Some(issued_borrow.kind), + |kind, var_span| { + use crate::session_diagnostics::CaptureVarCause::*; + let borrow_place = &issued_borrow.borrowed_place; + let borrow_place_desc = self.describe_any_place(borrow_place.as_ref()); + match kind { + Some(_) => { + FirstBorrowUsePlaceGenerator { place: borrow_place_desc, var_span } + } + None => FirstBorrowUsePlaceClosure { place: borrow_place_desc, var_span }, + } + }, ); - borrow_spans.var_span_label( + borrow_spans.var_subdiag( + Some(&self.infcx.tcx.sess.parse_sess.span_diagnostic), &mut err, - format!( - "second borrow occurs due to use of {}{}", - desc_place, - borrow_spans.describe(), - ), - gen_borrow_kind.describe_mutability(), + Some(gen_borrow_kind), + |kind, var_span| { + use crate::session_diagnostics::CaptureVarCause::*; + match kind { + Some(_) => SecondBorrowUsePlaceGenerator { place: desc_place, var_span }, + None => SecondBorrowUsePlaceClosure { place: desc_place, var_span }, + } + }, ); } @@ -1731,9 +1770,12 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { err.span_label(borrow_span, "borrowed value does not live long enough"); err.span_label(drop_span, format!("`{}` dropped here while still borrowed", name)); - let within = if borrow_spans.for_generator() { " by generator" } else { "" }; - - borrow_spans.args_span_label(&mut err, format!("value captured here{}", within)); + borrow_spans.args_subdiag(&mut err, |args_span| { + crate::session_diagnostics::CaptureArgLabel::Capture { + is_within: borrow_spans.for_generator(), + args_span, + } + }); explanation.add_explanation_to_diagnostic( self.infcx.tcx, @@ -1947,9 +1989,12 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { None, ); - let within = if borrow_spans.for_generator() { " by generator" } else { "" }; - - borrow_spans.args_span_label(&mut err, format!("value captured here{}", within)); + borrow_spans.args_subdiag(&mut err, |args_span| { + crate::session_diagnostics::CaptureArgLabel::Capture { + is_within: borrow_spans.for_generator(), + args_span, + } + }); err } @@ -2382,11 +2427,14 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { section, "assign", ); - loan_spans.var_span_label( - &mut err, - format!("borrow occurs due to use{}", loan_spans.describe()), - loan.kind.describe_mutability(), - ); + + loan_spans.var_subdiag(None, &mut err, Some(loan.kind), |kind, var_span| { + use crate::session_diagnostics::CaptureVarCause::*; + match kind { + Some(_) => BorrowUseInGenerator { var_span }, + None => BorrowUseInClosure { var_span }, + } + }); self.buffer_error(err); @@ -2396,11 +2444,13 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let mut err = self.cannot_assign_to_borrowed(span, loan_span, &descr_place); - loan_spans.var_span_label( - &mut err, - format!("borrow occurs due to use{}", loan_spans.describe()), - loan.kind.describe_mutability(), - ); + loan_spans.var_subdiag(None, &mut err, Some(loan.kind), |kind, var_span| { + use crate::session_diagnostics::CaptureVarCause::*; + match kind { + Some(_) => BorrowUseInGenerator { var_span }, + None => BorrowUseInClosure { var_span }, + } + }); self.explain_why_borrow_contains_point(location, loan, None).add_explanation_to_diagnostic( self.infcx.tcx, diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index dd003b5b040..4a85df9f8c0 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -1,5 +1,9 @@ //! Borrow checker diagnostics. +use crate::session_diagnostics::{ + CaptureArgLabel, CaptureReasonLabel, CaptureReasonNote, CaptureReasonSuggest, CaptureVarCause, + CaptureVarKind, CaptureVarPathUseCause, OnClosureNote, +}; use itertools::Itertools; use rustc_errors::{Applicability, Diagnostic}; use rustc_hir as hir; @@ -117,13 +121,15 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { if let ty::Closure(did, _) = self.body.local_decls[closure].ty.kind() { let did = did.expect_local(); if let Some((span, hir_place)) = self.infcx.tcx.closure_kind_origin(did) { - diag.span_note( - *span, - &format!( - "closure cannot be invoked more than once because it moves the \ - variable `{}` out of its environment", - ty::place_to_string_for_capture(self.infcx.tcx, hir_place) - ), + diag.eager_subdiagnostic( + &self.infcx.tcx.sess.parse_sess.span_diagnostic, + OnClosureNote::InvokedTwice { + place_name: &ty::place_to_string_for_capture( + self.infcx.tcx, + hir_place, + ), + span: *span, + }, ); return true; } @@ -137,13 +143,12 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { if let ty::Closure(did, _) = self.body.local_decls[target].ty.kind() { let did = did.expect_local(); if let Some((span, hir_place)) = self.infcx.tcx.closure_kind_origin(did) { - diag.span_note( - *span, - &format!( - "closure cannot be moved more than once as it is not `Copy` due to \ - moving the variable `{}` out of its environment", - ty::place_to_string_for_capture(self.infcx.tcx, hir_place) - ), + diag.eager_subdiagnostic( + &self.infcx.tcx.sess.parse_sess.span_diagnostic, + OnClosureNote::MovedTwice { + place_name: &ty::place_to_string_for_capture(self.infcx.tcx, hir_place), + span: *span, + }, ); return true; } @@ -380,25 +385,6 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { } } - /// Add a note that a type does not implement `Copy` - pub(super) fn note_type_does_not_implement_copy( - &self, - err: &mut Diagnostic, - place_desc: &str, - ty: Ty<'tcx>, - span: Option<Span>, - move_prefix: &str, - ) { - let message = format!( - "{move_prefix}move occurs because {place_desc} has type `{ty}`, which does not implement the `Copy` trait", - ); - if let Some(span) = span { - err.span_label(span, message); - } else { - err.note(&message); - } - } - pub(super) fn borrowed_content_source( &self, deref_base: PlaceRef<'tcx>, @@ -582,9 +568,13 @@ impl UseSpans<'_> { } /// Add a span label to the arguments of the closure, if it exists. - pub(super) fn args_span_label(self, err: &mut Diagnostic, message: impl Into<String>) { + pub(super) fn args_subdiag( + self, + err: &mut Diagnostic, + f: impl FnOnce(Span) -> CaptureArgLabel, + ) { if let UseSpans::ClosureUse { args_span, .. } = self { - err.span_label(args_span, message); + err.subdiagnostic(f(args_span)); } } @@ -595,8 +585,8 @@ impl UseSpans<'_> { err: &mut Diagnostic, action: crate::InitializationRequiringAction, ) { - use crate::session_diagnostics::CaptureVarPathUseCause::*; use crate::InitializationRequiringAction::*; + use CaptureVarPathUseCause::*; if let UseSpans::ClosureUse { generator_kind, path_span, .. } = self { match generator_kind { Some(_) => { @@ -619,34 +609,14 @@ impl UseSpans<'_> { } } - /// Add a span label to the use of the captured variable, if it exists. - pub(super) fn var_span_label( - self, - err: &mut Diagnostic, - message: impl Into<String>, - kind_desc: impl Into<String>, - ) { - if let UseSpans::ClosureUse { capture_kind_span, path_span, .. } = self { - if capture_kind_span == path_span { - err.span_label(capture_kind_span, message); - } else { - let capture_kind_label = - format!("capture is {} because of use here", kind_desc.into()); - let path_label = message; - err.span_label(capture_kind_span, capture_kind_label); - err.span_label(path_span, path_label); - } - } - } - /// Add a subdiagnostic to the use of the captured variable, if it exists. pub(super) fn var_subdiag( self, + handler: Option<&rustc_errors::Handler>, err: &mut Diagnostic, kind: Option<rustc_middle::mir::BorrowKind>, - f: impl Fn(Option<GeneratorKind>, Span) -> crate::session_diagnostics::CaptureVarCause, + f: impl FnOnce(Option<GeneratorKind>, Span) -> CaptureVarCause, ) { - use crate::session_diagnostics::CaptureVarKind::*; if let UseSpans::ClosureUse { generator_kind, capture_kind_span, path_span, .. } = self { if capture_kind_span != path_span { err.subdiagnostic(match kind { @@ -654,17 +624,21 @@ impl UseSpans<'_> { rustc_middle::mir::BorrowKind::Shared | rustc_middle::mir::BorrowKind::Shallow | rustc_middle::mir::BorrowKind::Unique => { - Immute { kind_span: capture_kind_span } + CaptureVarKind::Immut { kind_span: capture_kind_span } } rustc_middle::mir::BorrowKind::Mut { .. } => { - Mut { kind_span: capture_kind_span } + CaptureVarKind::Mut { kind_span: capture_kind_span } } }, - None => Move { kind_span: capture_kind_span }, + None => CaptureVarKind::Move { kind_span: capture_kind_span }, }); }; - err.subdiagnostic(f(generator_kind, path_span)); + let diag = f(generator_kind, path_span); + match handler { + Some(hd) => err.eager_subdiagnostic(hd, diag), + None => err.subdiagnostic(diag), + }; } } @@ -684,20 +658,6 @@ impl UseSpans<'_> { } } - /// Describe the span associated with a use of a place. - pub(super) fn describe(&self) -> &str { - match *self { - UseSpans::ClosureUse { generator_kind, .. } => { - if generator_kind.is_some() { - " in generator" - } else { - " in closure" - } - } - _ => "", - } - } - pub(super) fn or_else<F>(self, if_other: F) -> Self where F: FnOnce() -> Self, @@ -788,6 +748,15 @@ impl<'tcx> BorrowedContentSource<'tcx> { } } +///helper struct for explain_captures() +struct CapturedMessageOpt { + is_partial_move: bool, + is_loop_message: bool, + is_move_msg: bool, + is_loop_move: bool, + maybe_reinitialized_locations_is_empty: bool, +} + impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { /// Finds the spans associated to a move or copy of move_place at location. pub(super) fn move_spans( @@ -1027,12 +996,15 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { move_span: Span, move_spans: UseSpans<'tcx>, moved_place: Place<'tcx>, - partially_str: &str, - loop_message: &str, - move_msg: &str, - is_loop_move: bool, - maybe_reinitialized_locations_is_empty: bool, + msg_opt: CapturedMessageOpt, ) { + let CapturedMessageOpt { + is_partial_move: is_partial, + is_loop_message, + is_move_msg, + is_loop_move, + maybe_reinitialized_locations_is_empty, + } = msg_opt; if let UseSpans::FnSelfUse { var_span, fn_call_span, fn_span, kind } = move_spans { let place_name = self .describe_place(moved_place.as_ref()) @@ -1042,30 +1014,26 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { CallKind::FnCall { fn_trait_id, .. } if Some(fn_trait_id) == self.infcx.tcx.lang_items().fn_once_trait() => { - err.span_label( + err.subdiagnostic(CaptureReasonLabel::Call { fn_call_span, - &format!( - "{place_name} {partially_str}moved due to this call{loop_message}", - ), - ); - err.span_note( - var_span, - "this value implements `FnOnce`, which causes it to be moved when called", - ); + place_name: &place_name, + is_partial, + is_loop_message, + }); + err.subdiagnostic(CaptureReasonNote::FnOnceMoveInCall { var_span }); } CallKind::Operator { self_arg, .. } => { let self_arg = self_arg.unwrap(); - err.span_label( + err.subdiagnostic(CaptureReasonLabel::OperatorUse { fn_call_span, - &format!( - "{place_name} {partially_str}moved due to usage in operator{loop_message}", - ), - ); + place_name: &place_name, + is_partial, + is_loop_message, + }); if self.fn_self_span_reported.insert(fn_span) { - err.span_note( - self_arg.span, - "calling this operator moves the left-hand side", - ); + err.subdiagnostic(CaptureReasonNote::LhsMoveByOperator { + span: self_arg.span, + }); } } CallKind::Normal { self_arg, desugaring, method_did, method_substs } => { @@ -1086,23 +1054,18 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { _ => false, }; if suggest { - err.span_suggestion_verbose( - move_span.shrink_to_lo(), - &format!( - "consider iterating over a slice of the `{ty}`'s content to \ - avoid moving into the `for` loop", - ), - "&", - Applicability::MaybeIncorrect, - ); + err.subdiagnostic(CaptureReasonSuggest::IterateSlice { + ty, + span: move_span.shrink_to_lo(), + }); } - err.span_label( + err.subdiagnostic(CaptureReasonLabel::ImplicitCall { fn_call_span, - &format!( - "{place_name} {partially_str}moved due to this implicit call to `.into_iter()`{loop_message}", - ), - ); + place_name: &place_name, + is_partial, + is_loop_message, + }); // If the moved place was a `&mut` ref, then we can // suggest to reborrow it where it was moved, so it // will still be valid by the time we get to the usage. @@ -1125,13 +1088,12 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { } } } else { - err.span_label( + err.subdiagnostic(CaptureReasonLabel::MethodCall { fn_call_span, - &format!( - "{place_name} {partially_str}moved due to this method call{loop_message}", - ), - ); - + place_name: &place_name, + is_partial, + is_loop_message, + }); let infcx = tcx.infer_ctxt().build(); // Erase and shadow everything that could be passed to the new infcx. let ty = tcx.erase_regions(moved_place.ty(self.body, tcx).ty); @@ -1147,12 +1109,11 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { ) && infcx.can_eq(self.param_env, ty, self_ty) { - err.span_suggestion_verbose( - fn_call_span.shrink_to_lo(), - "consider reborrowing the `Pin` instead of moving it", - "as_mut().".to_string(), - Applicability::MaybeIncorrect, - ); + err.eager_subdiagnostic( + &self.infcx.tcx.sess.parse_sess.span_diagnostic, + CaptureReasonSuggest::FreshReborrow { + span: fn_call_span.shrink_to_lo(), + }); } if let Some(clone_trait) = tcx.lang_items().clone_trait() && let trait_ref = tcx.mk_trait_ref(clone_trait, [ty]) @@ -1177,10 +1138,11 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { // error messages. if span != DUMMY_SP && self.fn_self_span_reported.insert(self_arg.span) { let func = tcx.def_path_str(method_did); - err.span_note( - self_arg.span, - &format!("`{func}` takes ownership of the receiver `self`, which moves {place_name}") - ); + err.subdiagnostic(CaptureReasonNote::FuncTakeSelf { + func, + place_name, + span: self_arg.span, + }); } let parent_did = tcx.parent(method_did); let parent_self_ty = @@ -1194,30 +1156,28 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { matches!(tcx.get_diagnostic_name(def_id), Some(sym::Option | sym::Result)) }); if is_option_or_result && maybe_reinitialized_locations_is_empty { - err.span_label( - var_span, - "help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents", - ); + err.subdiagnostic(CaptureReasonLabel::BorrowContent { var_span }); } } // Other desugarings takes &self, which cannot cause a move _ => {} } } else { - if move_span != span || !loop_message.is_empty() { - err.span_label( + if move_span != span || is_loop_message { + err.subdiagnostic(CaptureReasonLabel::MovedHere { move_span, - format!("value {partially_str}moved{move_msg} here{loop_message}"), - ); + is_partial, + is_move_msg, + is_loop_message, + }); } // If the move error occurs due to a loop, don't show // another message for the same span - if loop_message.is_empty() { - move_spans.var_span_label( - err, - format!("variable {partially_str}moved due to use{}", move_spans.describe()), - "moved", - ); + if !is_loop_message { + move_spans.var_subdiag(None, err, None, |kind, var_span| match kind { + Some(_) => CaptureVarCause::PartialMoveUseInGenerator { var_span, is_partial }, + None => CaptureVarCause::PartialMoveUseInClosure { var_span, is_partial }, + }) } } } diff --git a/compiler/rustc_borrowck/src/diagnostics/move_errors.rs b/compiler/rustc_borrowck/src/diagnostics/move_errors.rs index 3662bec0c76..67af96a71e3 100644 --- a/compiler/rustc_borrowck/src/diagnostics/move_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/move_errors.rs @@ -6,6 +6,7 @@ use rustc_mir_dataflow::move_paths::{ }; use rustc_span::{BytePos, Span}; +use crate::diagnostics::CapturedMessageOpt; use crate::diagnostics::{DescribePlaceOpt, UseSpans}; use crate::prefixes::PrefixSet; use crate::MirBorrowckCtxt; @@ -397,10 +398,15 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } } }; + let msg_opt = CapturedMessageOpt { + is_partial_move: false, + is_loop_message: false, + is_move_msg: false, + is_loop_move: false, + maybe_reinitialized_locations_is_empty: true, + }; if let Some(use_spans) = use_spans { - self.explain_captures( - &mut err, span, span, use_spans, move_place, "", "", "", false, true, - ); + self.explain_captures(&mut err, span, span, use_spans, move_place, msg_opt); } err } @@ -416,13 +422,12 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { None => "value".to_string(), }; - self.note_type_does_not_implement_copy( - err, - &place_desc, - place_ty, - Some(span), - "", - ); + err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Label { + is_partial_move: false, + ty: place_ty, + place: &place_desc, + span, + }); } else { binds_to.sort(); binds_to.dedup(); @@ -444,9 +449,19 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { Some(desc) => format!("`{desc}`"), None => "value".to_string(), }; - self.note_type_does_not_implement_copy(err, &place_desc, place_ty, Some(span), ""); + err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Label { + is_partial_move: false, + ty: place_ty, + place: &place_desc, + span, + }); - use_spans.args_span_label(err, format!("{place_desc} is moved here")); + use_spans.args_subdiag(err, |args_span| { + crate::session_diagnostics::CaptureArgLabel::MoveOutPlace { + place: place_desc, + args_span, + } + }); } } } @@ -534,13 +549,13 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } if binds_to.len() == 1 { - self.note_type_does_not_implement_copy( - err, - &format!("`{}`", self.local_names[*local].unwrap()), - bind_to.ty, - Some(binding_span), - "", - ); + let place_desc = &format!("`{}`", self.local_names[*local].unwrap()); + err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Label { + is_partial_move: false, + ty: bind_to.ty, + place: &place_desc, + span: binding_span, + }); } } diff --git a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs index 9c907147e5a..e3d81194ac8 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs @@ -231,14 +231,18 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } } if suggest { - borrow_spans.var_span_label( - &mut err, - format!( - "mutable borrow occurs due to use of {} in closure", - self.describe_any_place(access_place.as_ref()), - ), - "mutable", - ); + borrow_spans.var_subdiag( + None, + &mut err, + Some(mir::BorrowKind::Mut { allow_two_phase_borrow: false }), + |_kind, var_span| { + let place = self.describe_any_place(access_place.as_ref()); + crate::session_diagnostics::CaptureVarCause::MutableBorrowUsePlaceClosure { + place, + var_span, + } + }, + ); } borrow_span } @@ -1143,7 +1147,7 @@ pub fn mut_borrow_of_mutable_ref(local_decl: &LocalDecl<'_>, local_name: Option< // suggest removing the `&mut`. // // Deliberately fall into this case for all implicit self types, - // so that we don't fall in to the next case with them. + // so that we don't fall into the next case with them. kind == hir::ImplicitSelfKind::MutRef } _ if Some(kw::SelfLower) == local_name => { @@ -1231,7 +1235,7 @@ fn suggest_ampmut<'tcx>( } } - let (suggestability, highlight_span) = match opt_ty_info { + let (suggestibility, highlight_span) = match opt_ty_info { // if this is a variable binding with an explicit type, // try to highlight that for the suggestion. Some(ty_span) => (true, ty_span), @@ -1252,7 +1256,7 @@ fn suggest_ampmut<'tcx>( let ty_mut = local_decl.ty.builtin_deref(true).unwrap(); assert_eq!(ty_mut.mutbl, hir::Mutability::Not); ( - suggestability, + suggestibility, highlight_span, if local_decl.ty.is_ref() { format!("&mut {}", ty_mut.ty) diff --git a/compiler/rustc_borrowck/src/diagnostics/var_name.rs b/compiler/rustc_borrowck/src/diagnostics/var_name.rs index 376415e3d32..aa7cf3578ea 100644 --- a/compiler/rustc_borrowck/src/diagnostics/var_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/var_name.rs @@ -3,7 +3,7 @@ use crate::region_infer::RegionInferenceContext; use crate::Upvar; -use rustc_index::vec::{Idx, IndexSlice}; +use rustc_index::vec::IndexSlice; use rustc_middle::mir::{Body, Local}; use rustc_middle::ty::{RegionVid, TyCtxt}; use rustc_span::source_map::Span; @@ -117,7 +117,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { argument_index: usize, ) -> (Option<Symbol>, Span) { let implicit_inputs = self.universal_regions().defining_ty.implicit_inputs(); - let argument_local = Local::new(implicit_inputs + argument_index + 1); + let argument_local = Local::from_usize(implicit_inputs + argument_index + 1); debug!("get_argument_name_and_span_for_region: argument_local={argument_local:?}"); let argument_name = local_names[argument_local]; diff --git a/compiler/rustc_borrowck/src/facts.rs b/compiler/rustc_borrowck/src/facts.rs index 02ffb51fbb7..87fad9a355d 100644 --- a/compiler/rustc_borrowck/src/facts.rs +++ b/compiler/rustc_borrowck/src/facts.rs @@ -4,7 +4,6 @@ use crate::location::{LocationIndex, LocationTable}; use crate::BorrowIndex; use polonius_engine::AllFacts as PoloniusFacts; use polonius_engine::Atom; -use rustc_index::vec::Idx; use rustc_middle::mir::Local; use rustc_middle::ty::{RegionVid, TyCtxt}; use rustc_mir_dataflow::move_paths::MovePathIndex; @@ -93,13 +92,13 @@ impl AllFactsExt for AllFacts { impl Atom for BorrowIndex { fn index(self) -> usize { - Idx::index(self) + self.as_usize() } } impl Atom for LocationIndex { fn index(self) -> usize { - Idx::index(self) + self.as_usize() } } diff --git a/compiler/rustc_borrowck/src/location.rs b/compiler/rustc_borrowck/src/location.rs index 288b7d85be2..08fa912f368 100644 --- a/compiler/rustc_borrowck/src/location.rs +++ b/compiler/rustc_borrowck/src/location.rs @@ -1,6 +1,6 @@ #![deny(rustc::untranslatable_diagnostic)] #![deny(rustc::diagnostic_outside_of_impl)] -use rustc_index::vec::{Idx, IndexVec}; +use rustc_index::vec::IndexVec; use rustc_middle::mir::{BasicBlock, Body, Location}; /// Maps between a MIR Location, which identifies a particular @@ -50,19 +50,19 @@ impl LocationTable { } pub fn all_points(&self) -> impl Iterator<Item = LocationIndex> { - (0..self.num_points).map(LocationIndex::new) + (0..self.num_points).map(LocationIndex::from_usize) } pub fn start_index(&self, location: Location) -> LocationIndex { let Location { block, statement_index } = location; let start_index = self.statements_before_block[block]; - LocationIndex::new(start_index + statement_index * 2) + LocationIndex::from_usize(start_index + statement_index * 2) } pub fn mid_index(&self, location: Location) -> LocationIndex { let Location { block, statement_index } = location; let start_index = self.statements_before_block[block]; - LocationIndex::new(start_index + statement_index * 2 + 1) + LocationIndex::from_usize(start_index + statement_index * 2 + 1) } pub fn to_location(&self, index: LocationIndex) -> RichLocation { diff --git a/compiler/rustc_borrowck/src/nll.rs b/compiler/rustc_borrowck/src/nll.rs index 59a3ab3189d..73b8765e57d 100644 --- a/compiler/rustc_borrowck/src/nll.rs +++ b/compiler/rustc_borrowck/src/nll.rs @@ -7,8 +7,8 @@ use rustc_hir::def_id::LocalDefId; use rustc_index::vec::IndexSlice; use rustc_middle::mir::{create_dump_file, dump_enabled, dump_mir, PassWhere}; use rustc_middle::mir::{ - BasicBlock, Body, ClosureOutlivesSubject, ClosureRegionRequirements, LocalKind, Location, - Promoted, + Body, ClosureOutlivesSubject, ClosureRegionRequirements, LocalKind, Location, Promoted, + START_BLOCK, }; use rustc_middle::ty::{self, OpaqueHiddenType, TyCtxt}; use rustc_span::symbol::sym; @@ -94,8 +94,8 @@ fn populate_polonius_move_facts( } } - let fn_entry_start = location_table - .start_index(Location { block: BasicBlock::from_u32(0u32), statement_index: 0 }); + let fn_entry_start = + location_table.start_index(Location { block: START_BLOCK, statement_index: 0 }); // initialized_at for init in move_data.inits.iter() { diff --git a/compiler/rustc_borrowck/src/session_diagnostics.rs b/compiler/rustc_borrowck/src/session_diagnostics.rs index a3678929099..bb95101845f 100644 --- a/compiler/rustc_borrowck/src/session_diagnostics.rs +++ b/compiler/rustc_borrowck/src/session_diagnostics.rs @@ -184,7 +184,7 @@ pub(crate) enum CaptureVarPathUseCause { #[derive(Subdiagnostic)] pub(crate) enum CaptureVarKind { #[label(borrowck_capture_immute)] - Immute { + Immut { #[primary_span] kind_span: Span, }, @@ -204,16 +204,80 @@ pub(crate) enum CaptureVarKind { pub(crate) enum CaptureVarCause { #[label(borrowck_var_borrow_by_use_place_in_generator)] BorrowUsePlaceGenerator { + is_single_var: bool, place: String, #[primary_span] var_span: Span, }, #[label(borrowck_var_borrow_by_use_place_in_closure)] BorrowUsePlaceClosure { + is_single_var: bool, place: String, #[primary_span] var_span: Span, }, + #[label(borrowck_var_borrow_by_use_in_generator)] + BorrowUseInGenerator { + #[primary_span] + var_span: Span, + }, + #[label(borrowck_var_borrow_by_use_in_closure)] + BorrowUseInClosure { + #[primary_span] + var_span: Span, + }, + #[label(borrowck_var_move_by_use_in_generator)] + MoveUseInGenerator { + #[primary_span] + var_span: Span, + }, + #[label(borrowck_var_move_by_use_in_closure)] + MoveUseInClosure { + #[primary_span] + var_span: Span, + }, + #[label(borrowck_var_first_borrow_by_use_place_in_generator)] + FirstBorrowUsePlaceGenerator { + place: String, + #[primary_span] + var_span: Span, + }, + #[label(borrowck_var_first_borrow_by_use_place_in_closure)] + FirstBorrowUsePlaceClosure { + place: String, + #[primary_span] + var_span: Span, + }, + #[label(borrowck_var_second_borrow_by_use_place_in_generator)] + SecondBorrowUsePlaceGenerator { + place: String, + #[primary_span] + var_span: Span, + }, + #[label(borrowck_var_second_borrow_by_use_place_in_closure)] + SecondBorrowUsePlaceClosure { + place: String, + #[primary_span] + var_span: Span, + }, + #[label(borrowck_var_mutable_borrow_by_use_place_in_closure)] + MutableBorrowUsePlaceClosure { + place: String, + #[primary_span] + var_span: Span, + }, + #[label(borrowck_partial_var_move_by_use_in_generator)] + PartialMoveUseInGenerator { + #[primary_span] + var_span: Span, + is_partial: bool, + }, + #[label(borrowck_partial_var_move_by_use_in_closure)] + PartialMoveUseInClosure { + #[primary_span] + var_span: Span, + is_partial: bool, + }, } #[derive(Diagnostic)] @@ -239,3 +303,144 @@ pub(crate) struct NonGenericOpaqueTypeParam<'a, 'tcx> { #[label] pub param_span: Span, } + +#[derive(Subdiagnostic)] +pub(crate) enum CaptureReasonLabel<'a> { + #[label(borrowck_moved_due_to_call)] + Call { + #[primary_span] + fn_call_span: Span, + place_name: &'a str, + is_partial: bool, + is_loop_message: bool, + }, + #[label(borrowck_moved_due_to_usage_in_operator)] + OperatorUse { + #[primary_span] + fn_call_span: Span, + place_name: &'a str, + is_partial: bool, + is_loop_message: bool, + }, + #[label(borrowck_moved_due_to_implicit_into_iter_call)] + ImplicitCall { + #[primary_span] + fn_call_span: Span, + place_name: &'a str, + is_partial: bool, + is_loop_message: bool, + }, + #[label(borrowck_moved_due_to_method_call)] + MethodCall { + #[primary_span] + fn_call_span: Span, + place_name: &'a str, + is_partial: bool, + is_loop_message: bool, + }, + #[label(borrowck_value_moved_here)] + MovedHere { + #[primary_span] + move_span: Span, + is_partial: bool, + is_move_msg: bool, + is_loop_message: bool, + }, + #[label(borrowck_consider_borrow_type_contents)] + BorrowContent { + #[primary_span] + var_span: Span, + }, +} + +#[derive(Subdiagnostic)] +pub(crate) enum CaptureReasonNote { + #[note(borrowck_moved_a_fn_once_in_call)] + FnOnceMoveInCall { + #[primary_span] + var_span: Span, + }, + #[note(borrowck_calling_operator_moves_lhs)] + LhsMoveByOperator { + #[primary_span] + span: Span, + }, + #[note(borrowck_func_take_self_moved_place)] + FuncTakeSelf { + func: String, + place_name: String, + #[primary_span] + span: Span, + }, +} + +#[derive(Subdiagnostic)] +pub(crate) enum CaptureReasonSuggest<'tcx> { + #[suggestion( + borrowck_suggest_iterate_over_slice, + applicability = "maybe-incorrect", + code = "&", + style = "verbose" + )] + IterateSlice { + ty: Ty<'tcx>, + #[primary_span] + span: Span, + }, + #[suggestion( + borrowck_suggest_create_freash_reborrow, + applicability = "maybe-incorrect", + code = "as_mut().", + style = "verbose" + )] + FreshReborrow { + #[primary_span] + span: Span, + }, +} + +#[derive(Subdiagnostic)] +pub(crate) enum CaptureArgLabel { + #[label(borrowck_value_capture_here)] + Capture { + is_within: bool, + #[primary_span] + args_span: Span, + }, + #[label(borrowck_move_out_place_here)] + MoveOutPlace { + place: String, + #[primary_span] + args_span: Span, + }, +} + +#[derive(Subdiagnostic)] +pub(crate) enum OnClosureNote<'a> { + #[note(borrowck_closure_invoked_twice)] + InvokedTwice { + place_name: &'a str, + #[primary_span] + span: Span, + }, + #[note(borrowck_closure_moved_twice)] + MovedTwice { + place_name: &'a str, + #[primary_span] + span: Span, + }, +} + +#[derive(Subdiagnostic)] +pub(crate) enum TypeNoCopy<'a, 'tcx> { + #[label(borrowck_ty_no_impl_copy)] + Label { + is_partial_move: bool, + ty: Ty<'tcx>, + place: &'a str, + #[primary_span] + span: Span, + }, + #[note(borrowck_ty_no_impl_copy)] + Note { is_partial_move: bool, ty: Ty<'tcx>, place: &'a str }, +} diff --git a/compiler/rustc_borrowck/src/type_check/input_output.rs b/compiler/rustc_borrowck/src/type_check/input_output.rs index 17e702eb8c5..9250b8d3eaf 100644 --- a/compiler/rustc_borrowck/src/type_check/input_output.rs +++ b/compiler/rustc_borrowck/src/type_check/input_output.rs @@ -7,7 +7,6 @@ //! `RETURN_PLACE` the MIR arguments) are always fully normalized (and //! contain revealed `impl Trait` values). -use rustc_index::vec::Idx; use rustc_infer::infer::LateBoundRegionConversionTime; use rustc_middle::mir::*; use rustc_middle::ty::{self, Ty}; @@ -83,7 +82,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { } // In MIR, argument N is stored in local N+1. - let local = Local::new(argument_index + 1); + let local = Local::from_usize(argument_index + 1); let mir_input_ty = body.local_decls[local].ty; diff --git a/compiler/rustc_borrowck/src/universal_regions.rs b/compiler/rustc_borrowck/src/universal_regions.rs index 70fddb1057c..74241f722a6 100644 --- a/compiler/rustc_borrowck/src/universal_regions.rs +++ b/compiler/rustc_borrowck/src/universal_regions.rs @@ -19,7 +19,7 @@ use rustc_hir as hir; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_hir::lang_items::LangItem; use rustc_hir::BodyOwnerKind; -use rustc_index::vec::{Idx, IndexVec}; +use rustc_index::vec::IndexVec; use rustc_infer::infer::NllRegionVariableOrigin; use rustc_middle::ty::fold::TypeFoldable; use rustc_middle::ty::{self, InlineConstSubsts, InlineConstSubstsParts, RegionVid, Ty, TyCtxt}; @@ -289,7 +289,7 @@ impl<'tcx> UniversalRegions<'tcx> { /// Returns an iterator over all the RegionVids corresponding to /// universally quantified free regions. pub fn universal_regions(&self) -> impl Iterator<Item = RegionVid> { - (FIRST_GLOBAL_INDEX..self.num_universals).map(RegionVid::new) + (FIRST_GLOBAL_INDEX..self.num_universals).map(RegionVid::from_usize) } /// Returns `true` if `r` is classified as an local region. diff --git a/compiler/rustc_codegen_llvm/src/common.rs b/compiler/rustc_codegen_llvm/src/common.rs index 4f8b5abd901..9127fba388b 100644 --- a/compiler/rustc_codegen_llvm/src/common.rs +++ b/compiler/rustc_codegen_llvm/src/common.rs @@ -10,7 +10,7 @@ use crate::value::Value; use rustc_ast::Mutability; use rustc_codegen_ssa::mir::place::PlaceRef; use rustc_codegen_ssa::traits::*; -use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{Hash128, HashStable, StableHasher}; use rustc_hir::def_id::DefId; use rustc_middle::bug; use rustc_middle::mir::interpret::{ConstAllocation, GlobalAlloc, Scalar}; @@ -261,7 +261,7 @@ impl<'ll, 'tcx> ConstMethods<'tcx> for CodegenCx<'ll, 'tcx> { let hash = self.tcx.with_stable_hashing_context(|mut hcx| { let mut hasher = StableHasher::new(); alloc.hash_stable(&mut hcx, &mut hasher); - hasher.finish::<u128>() + hasher.finish::<Hash128>() }); llvm::set_value_name(value, format!("alloc_{hash:032x}").as_bytes()); } diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs index ff2b005d757..aaf5dbd9930 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs @@ -22,9 +22,9 @@ pub fn insert_reference_to_gdb_debug_scripts_section_global(bx: &mut Builder<'_, bx.const_bitcast(get_or_insert_gdb_debug_scripts_section_global(bx), bx.type_i8p()); // Load just the first byte as that's all that's necessary to force // LLVM to keep around the reference to the global. - let volative_load_instruction = bx.volatile_load(bx.type_i8(), gdb_debug_scripts_section); + let volatile_load_instruction = bx.volatile_load(bx.type_i8(), gdb_debug_scripts_section); unsafe { - llvm::LLVMSetAlignment(volative_load_instruction, 1); + llvm::LLVMSetAlignment(volatile_load_instruction, 1); } } } diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs index 69443b9b828..38ad42370d3 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs @@ -62,7 +62,7 @@ const SINGLE_VARIANT_VIRTUAL_DISR: u64 = 0; /// In CPP-like mode, we generate a union with a field for each variant and an /// explicit tag field. The field of each variant has a struct type -/// that encodes the discrimiant of the variant and it's data layout. +/// that encodes the discriminant of the variant and it's data layout. /// The union also has a nested enumeration type that is only used for encoding /// variant names in an efficient way. Its enumerator values do _not_ correspond /// to the enum's discriminant values. diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs index d56c414cf65..56844c7951f 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs @@ -21,6 +21,7 @@ use rustc_codegen_ssa::debuginfo::type_names; use rustc_codegen_ssa::mir::debuginfo::{DebugScope, FunctionDebugContext, VariableKind}; use rustc_codegen_ssa::traits::*; use rustc_data_structures::fx::FxHashMap; +use rustc_data_structures::stable_hasher::Hash128; use rustc_data_structures::sync::Lrc; use rustc_hir::def_id::{DefId, DefIdMap}; use rustc_index::vec::IndexVec; @@ -61,7 +62,7 @@ pub struct CodegenUnitDebugContext<'ll, 'tcx> { llcontext: &'ll llvm::Context, llmod: &'ll llvm::Module, builder: &'ll mut DIBuilder<'ll>, - created_files: RefCell<FxHashMap<Option<(u128, SourceFileHash)>, &'ll DIFile>>, + created_files: RefCell<FxHashMap<Option<(Hash128, SourceFileHash)>, &'ll DIFile>>, type_map: metadata::TypeMap<'ll, 'tcx>, namespace_map: RefCell<DefIdMap<&'ll DIScope>>, diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs index 3f77ea77eff..4926f4e50c4 100644 --- a/compiler/rustc_codegen_llvm/src/lib.rs +++ b/compiler/rustc_codegen_llvm/src/lib.rs @@ -69,7 +69,7 @@ mod declare; mod errors; mod intrinsic; -// The following is a work around that replaces `pub mod llvm;` and that fixes issue 53912. +// The following is a workaround that replaces `pub mod llvm;` and that fixes issue 53912. #[path = "llvm/mod.rs"] mod llvm_; pub mod llvm { diff --git a/compiler/rustc_codegen_ssa/messages.ftl b/compiler/rustc_codegen_ssa/messages.ftl index 243be0e1f70..85a96e3e89c 100644 --- a/compiler/rustc_codegen_ssa/messages.ftl +++ b/compiler/rustc_codegen_ssa/messages.ftl @@ -148,7 +148,7 @@ codegen_ssa_processing_dymutil_failed = processing debug info with `dsymutil` fa codegen_ssa_unable_to_run_dsymutil = unable to run `dsymutil`: {$error} -codegen_ssa_stripping_debu_info_failed = stripping debug info with `{$util}` failed: {$status} +codegen_ssa_stripping_debug_info_failed = stripping debug info with `{$util}` failed: {$status} .note = {$output} codegen_ssa_unable_to_run = unable to run `{$util}`: {$error} diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs index 2dda4cd1694..c80347448cb 100644 --- a/compiler/rustc_codegen_ssa/src/back/write.rs +++ b/compiler/rustc_codegen_ssa/src/back/write.rs @@ -872,7 +872,7 @@ fn execute_copy_from_cache_work_item<B: ExtraBackendMethods>( let load_from_incr_comp_dir = |output_path: PathBuf, saved_path: &str| { let source_file = in_incr_comp_dir(&incr_comp_session_dir, saved_path); debug!( - "copying pre-existing module `{}` from {:?} to {}", + "copying preexisting module `{}` from {:?} to {}", module.name, source_file, output_path.display() diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index 8542bab689d..9bfe426c007 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -156,7 +156,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { None => { // Unfortunately, unconditionally using `llvm.used` causes // issues in handling `.init_array` with the gold linker, - // but using `llvm.compiler.used` caused a nontrival amount + // but using `llvm.compiler.used` caused a nontrivial amount // of unintentional ecosystem breakage -- particularly on // Mach-O targets. // diff --git a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs index f2469fde3b6..03f33d8d8aa 100644 --- a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs +++ b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs @@ -12,7 +12,7 @@ // * `"` is treated as the start of a string. use rustc_data_structures::fx::FxHashSet; -use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{Hash64, HashStable, StableHasher}; use rustc_hir::def_id::DefId; use rustc_hir::definitions::{DefPathData, DefPathDataName, DisambiguatedDefPathData}; use rustc_hir::{AsyncGeneratorKind, GeneratorKind, Mutability}; @@ -675,8 +675,7 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S hcx.while_hashing_spans(false, |hcx| { ct.to_valtree().hash_stable(hcx, &mut hasher) }); - let hash: u64 = hasher.finish(); - hash + hasher.finish::<Hash64>() }); if cpp_like_debuginfo(tcx) { diff --git a/compiler/rustc_codegen_ssa/src/errors.rs b/compiler/rustc_codegen_ssa/src/errors.rs index 66e7e314f79..44931766678 100644 --- a/compiler/rustc_codegen_ssa/src/errors.rs +++ b/compiler/rustc_codegen_ssa/src/errors.rs @@ -424,7 +424,7 @@ pub struct UnableToRunDsymutil { } #[derive(Diagnostic)] -#[diag(codegen_ssa_stripping_debu_info_failed)] +#[diag(codegen_ssa_stripping_debug_info_failed)] #[note] pub struct StrippingDebugInfoFailed<'a> { pub util: &'a str, diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index dd86977817f..a0a8246be15 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -12,7 +12,6 @@ use crate::MemFlags; use rustc_ast as ast; use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece}; use rustc_hir::lang_items::LangItem; -use rustc_index::vec::Idx; use rustc_middle::mir::{self, AssertKind, SwitchTargets}; use rustc_middle::ty::layout::{HasTyCtxt, LayoutOf, ValidityRequirement}; use rustc_middle::ty::print::{with_no_trimmed_paths, with_no_visible_paths}; @@ -369,7 +368,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { if self.fn_abi.c_variadic { // The `VaList` "spoofed" argument is just after all the real arguments. let va_list_arg_idx = self.fn_abi.args.len(); - match self.locals[mir::Local::new(1 + va_list_arg_idx)] { + match self.locals[mir::Local::from_usize(1 + va_list_arg_idx)] { LocalRef::Place(va_list) => { bx.va_end(va_list.llval); } diff --git a/compiler/rustc_const_eval/src/interpret/discriminant.rs b/compiler/rustc_const_eval/src/interpret/discriminant.rs index 557e721249d..015a9beab83 100644 --- a/compiler/rustc_const_eval/src/interpret/discriminant.rs +++ b/compiler/rustc_const_eval/src/interpret/discriminant.rs @@ -211,18 +211,19 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { let variant_index_relative = u32::try_from(variant_index_relative) .expect("we checked that this fits into a u32"); // Then computing the absolute variant idx should not overflow any more. - let variant_index = variants_start - .checked_add(variant_index_relative) - .expect("overflow computing absolute variant idx"); - let variants_len = op + let variant_index = VariantIdx::from_u32( + variants_start + .checked_add(variant_index_relative) + .expect("overflow computing absolute variant idx"), + ); + let variants = op .layout .ty .ty_adt_def() .expect("tagged layout for non adt") - .variants() - .len(); - assert!(usize::try_from(variant_index).unwrap() < variants_len); - VariantIdx::from_u32(variant_index) + .variants(); + assert!(variant_index < variants.next_index()); + variant_index } else { untagged_variant } diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs index 26fb041b455..eada75ae391 100644 --- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs +++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs @@ -75,7 +75,7 @@ pub(crate) fn eval_nullary_intrinsic<'tcx>( } sym::type_id => { ensure_monomorphic_enough(tcx, tp_ty)?; - ConstValue::from_u64(tcx.type_id_hash(tp_ty)) + ConstValue::from_u64(tcx.type_id_hash(tp_ty).as_u64()) } sym::variant_count => match tp_ty.kind() { // Correctly handles non-monomorphic calls, so there is no need for ensure_monomorphic_enough. diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 93b5273e1b1..e06b634cdc3 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -784,7 +784,7 @@ impl<'rt, 'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> ValueVisitor<'mir, 'tcx, M> Abi::Scalar(scalar_layout) => { if !scalar_layout.is_uninit_valid() { // There is something to check here. - let scalar = self.read_scalar(op, "initiailized scalar value")?; + let scalar = self.read_scalar(op, "initialized scalar value")?; self.visit_scalar(scalar, scalar_layout)?; } } @@ -794,7 +794,7 @@ impl<'rt, 'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> ValueVisitor<'mir, 'tcx, M> // the other must be init. if !a_layout.is_uninit_valid() && !b_layout.is_uninit_valid() { let (a, b) = - self.read_immediate(op, "initiailized scalar value")?.to_scalar_pair(); + self.read_immediate(op, "initialized scalar value")?.to_scalar_pair(); self.visit_scalar(a, a_layout)?; self.visit_scalar(b, b_layout)?; } diff --git a/compiler/rustc_const_eval/src/transform/validate.rs b/compiler/rustc_const_eval/src/transform/validate.rs index d4bed97380b..8aee019e994 100644 --- a/compiler/rustc_const_eval/src/transform/validate.rs +++ b/compiler/rustc_const_eval/src/transform/validate.rs @@ -262,7 +262,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { // We sometimes have to use `defining_opaque_types` for subtyping // to succeed here and figuring out how exactly that should work // is annoying. It is harmless enough to just not validate anything - // in that case. We still check this after analysis as all opque + // in that case. We still check this after analysis as all opaque // types have been revealed at this point. if (src, dest).has_opaque_types() { return true; diff --git a/compiler/rustc_data_structures/Cargo.toml b/compiler/rustc_data_structures/Cargo.toml index 2102f09c56a..39f4bc63c88 100644 --- a/compiler/rustc_data_structures/Cargo.toml +++ b/compiler/rustc_data_structures/Cargo.toml @@ -21,7 +21,6 @@ rustc-hash = "1.1.0" rustc_index = { path = "../rustc_index", package = "rustc_index" } rustc_macros = { path = "../rustc_macros" } rustc_serialize = { path = "../rustc_serialize" } -serde_json = "1.0.59" smallvec = { version = "1.8.1", features = [ "const_generics", "union", diff --git a/compiler/rustc_data_structures/src/aligned.rs b/compiler/rustc_data_structures/src/aligned.rs new file mode 100644 index 00000000000..0e5ecfd9bff --- /dev/null +++ b/compiler/rustc_data_structures/src/aligned.rs @@ -0,0 +1,33 @@ +use std::ptr::Alignment; + +/// Returns the ABI-required minimum alignment of a type in bytes. +/// +/// This is equivalent to [`mem::align_of`], but also works for some unsized +/// types (e.g. slices or rustc's `List`s). +/// +/// [`mem::align_of`]: std::mem::align_of +pub const fn align_of<T: ?Sized + Aligned>() -> Alignment { + T::ALIGN +} + +/// A type with a statically known alignment. +/// +/// # Safety +/// +/// `Self::ALIGN` must be equal to the alignment of `Self`. For sized types it +/// is [`mem::align_of<Self>()`], for unsized types it depends on the type, for +/// example `[T]` has alignment of `T`. +/// +/// [`mem::align_of<Self>()`]: std::mem::align_of +pub unsafe trait Aligned { + /// Alignment of `Self`. + const ALIGN: Alignment; +} + +unsafe impl<T> Aligned for T { + const ALIGN: Alignment = Alignment::of::<Self>(); +} + +unsafe impl<T> Aligned for [T] { + const ALIGN: Alignment = Alignment::of::<T>(); +} diff --git a/compiler/rustc_data_structures/src/fingerprint.rs b/compiler/rustc_data_structures/src/fingerprint.rs index b6e866f15ef..6fa76981408 100644 --- a/compiler/rustc_data_structures/src/fingerprint.rs +++ b/compiler/rustc_data_structures/src/fingerprint.rs @@ -1,4 +1,4 @@ -use crate::stable_hasher; +use crate::stable_hasher::{Hash64, StableHasher, StableHasherResult}; use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; use std::hash::{Hash, Hasher}; @@ -9,32 +9,49 @@ mod tests; #[repr(C)] pub struct Fingerprint(u64, u64); -impl Fingerprint { - pub const ZERO: Fingerprint = Fingerprint(0, 0); +pub trait FingerprintComponent { + fn as_u64(&self) -> u64; +} +impl FingerprintComponent for Hash64 { #[inline] - pub fn new(_0: u64, _1: u64) -> Fingerprint { - Fingerprint(_0, _1) + fn as_u64(&self) -> u64 { + Hash64::as_u64(*self) + } +} + +impl FingerprintComponent for u64 { + #[inline] + fn as_u64(&self) -> u64 { + *self } +} + +impl Fingerprint { + pub const ZERO: Fingerprint = Fingerprint(0, 0); #[inline] - pub fn from_smaller_hash(hash: u64) -> Fingerprint { - Fingerprint(hash, hash) + pub fn new<A, B>(_0: A, _1: B) -> Fingerprint + where + A: FingerprintComponent, + B: FingerprintComponent, + { + Fingerprint(_0.as_u64(), _1.as_u64()) } #[inline] - pub fn to_smaller_hash(&self) -> u64 { + pub fn to_smaller_hash(&self) -> Hash64 { // Even though both halves of the fingerprint are expected to be good // quality hash values, let's still combine the two values because the // Fingerprints in DefPathHash have the StableCrateId portion which is // the same for all DefPathHashes from the same crate. Combining the // two halves makes sure we get a good quality hash in such cases too. - self.0.wrapping_mul(3).wrapping_add(self.1) + Hash64::new(self.0.wrapping_mul(3).wrapping_add(self.1)) } #[inline] - pub fn as_value(&self) -> (u64, u64) { - (self.0, self.1) + pub fn split(&self) -> (Hash64, Hash64) { + (Hash64::new(self.0), Hash64::new(self.1)) } #[inline] @@ -131,9 +148,9 @@ impl FingerprintHasher for crate::unhash::Unhasher { } } -impl stable_hasher::StableHasherResult for Fingerprint { +impl StableHasherResult for Fingerprint { #[inline] - fn finish(hasher: stable_hasher::StableHasher) -> Self { + fn finish(hasher: StableHasher) -> Self { let (_0, _1) = hasher.finalize(); Fingerprint(_0, _1) } diff --git a/compiler/rustc_data_structures/src/fingerprint/tests.rs b/compiler/rustc_data_structures/src/fingerprint/tests.rs index 9b0783e33ab..09ec2622a65 100644 --- a/compiler/rustc_data_structures/src/fingerprint/tests.rs +++ b/compiler/rustc_data_structures/src/fingerprint/tests.rs @@ -1,11 +1,12 @@ use super::*; +use crate::stable_hasher::Hash64; // Check that `combine_commutative` is order independent. #[test] fn combine_commutative_is_order_independent() { - let a = Fingerprint::new(0xf6622fb349898b06, 0x70be9377b2f9c610); - let b = Fingerprint::new(0xa9562bf5a2a5303c, 0x67d9b6c82034f13d); - let c = Fingerprint::new(0x0d013a27811dbbc3, 0x9a3f7b3d9142ec43); + let a = Fingerprint::new(Hash64::new(0xf6622fb349898b06), Hash64::new(0x70be9377b2f9c610)); + let b = Fingerprint::new(Hash64::new(0xa9562bf5a2a5303c), Hash64::new(0x67d9b6c82034f13d)); + let c = Fingerprint::new(Hash64::new(0x0d013a27811dbbc3), Hash64::new(0x9a3f7b3d9142ec43)); let permutations = [(a, b, c), (a, c, b), (b, a, c), (b, c, a), (c, a, b), (c, b, a)]; let f = a.combine_commutative(b).combine_commutative(c); for p in &permutations { diff --git a/compiler/rustc_data_structures/src/hashes.rs b/compiler/rustc_data_structures/src/hashes.rs new file mode 100644 index 00000000000..ad068cdbc98 --- /dev/null +++ b/compiler/rustc_data_structures/src/hashes.rs @@ -0,0 +1,132 @@ +//! rustc encodes a lot of hashes. If hashes are stored as `u64` or `u128`, a `derive(Encodable)` +//! will apply varint encoding to the hashes, which is less efficient than directly encoding the 8 +//! or 16 bytes of the hash. +//! +//! The types in this module represent 64-bit or 128-bit hashes produced by a `StableHasher`. +//! `Hash64` and `Hash128` expose some utilty functions to encourage users to not extract the inner +//! hash value as an integer type and accidentally apply varint encoding to it. +//! +//! In contrast with `Fingerprint`, users of these types cannot and should not attempt to construct +//! and decompose these types into constitutent pieces. The point of these types is only to +//! connect the fact that they can only be produced by a `StableHasher` to their +//! `Encode`/`Decode` impls. + +use crate::stable_hasher::{StableHasher, StableHasherResult}; +use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; +use std::fmt; +use std::ops::BitXorAssign; + +#[derive(Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Default)] +pub struct Hash64 { + inner: u64, +} + +impl Hash64 { + pub const ZERO: Hash64 = Hash64 { inner: 0 }; + + #[inline] + pub(crate) fn new(n: u64) -> Self { + Self { inner: n } + } + + #[inline] + pub fn as_u64(self) -> u64 { + self.inner + } +} + +impl BitXorAssign<u64> for Hash64 { + #[inline] + fn bitxor_assign(&mut self, rhs: u64) { + self.inner ^= rhs; + } +} + +impl<S: Encoder> Encodable<S> for Hash64 { + #[inline] + fn encode(&self, s: &mut S) { + s.emit_raw_bytes(&self.inner.to_le_bytes()); + } +} + +impl<D: Decoder> Decodable<D> for Hash64 { + #[inline] + fn decode(d: &mut D) -> Self { + Self { inner: u64::from_le_bytes(d.read_raw_bytes(8).try_into().unwrap()) } + } +} + +impl StableHasherResult for Hash64 { + #[inline] + fn finish(hasher: StableHasher) -> Self { + Self { inner: hasher.finalize().0 } + } +} + +impl fmt::Debug for Hash64 { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + self.inner.fmt(f) + } +} + +impl fmt::LowerHex for Hash64 { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::LowerHex::fmt(&self.inner, f) + } +} + +#[derive(Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Default)] +pub struct Hash128 { + inner: u128, +} + +impl Hash128 { + #[inline] + pub fn truncate(self) -> Hash64 { + Hash64 { inner: self.inner as u64 } + } + + #[inline] + pub fn wrapping_add(self, other: Self) -> Self { + Self { inner: self.inner.wrapping_add(other.inner) } + } + + #[inline] + pub fn as_u128(self) -> u128 { + self.inner + } +} + +impl<S: Encoder> Encodable<S> for Hash128 { + #[inline] + fn encode(&self, s: &mut S) { + s.emit_raw_bytes(&self.inner.to_le_bytes()); + } +} + +impl<D: Decoder> Decodable<D> for Hash128 { + #[inline] + fn decode(d: &mut D) -> Self { + Self { inner: u128::from_le_bytes(d.read_raw_bytes(16).try_into().unwrap()) } + } +} + +impl StableHasherResult for Hash128 { + #[inline] + fn finish(hasher: StableHasher) -> Self { + let (_0, _1) = hasher.finalize(); + Self { inner: u128::from(_0) | (u128::from(_1) << 64) } + } +} + +impl fmt::Debug for Hash128 { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + self.inner.fmt(f) + } +} + +impl fmt::LowerHex for Hash128 { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::LowerHex::fmt(&self.inner, f) + } +} diff --git a/compiler/rustc_data_structures/src/lib.rs b/compiler/rustc_data_structures/src/lib.rs index e373bd18402..405ae99395b 100644 --- a/compiler/rustc_data_structures/src/lib.rs +++ b/compiler/rustc_data_structures/src/lib.rs @@ -29,6 +29,8 @@ #![feature(get_mut_unchecked)] #![feature(lint_reasons)] #![feature(unwrap_infallible)] +#![feature(strict_provenance)] +#![feature(ptr_alignment_type)] #![allow(rustc::default_hash_types)] #![allow(rustc::potential_query_instability)] #![deny(rustc::untranslatable_diagnostic)] @@ -82,7 +84,9 @@ pub mod transitive_relation; pub mod vec_linked_list; pub mod work_queue; pub use atomic_ref::AtomicRef; +pub mod aligned; pub mod frozen; +mod hashes; pub mod owned_slice; pub mod sso; pub mod steal; diff --git a/compiler/rustc_data_structures/src/profiling.rs b/compiler/rustc_data_structures/src/profiling.rs index 1ed584eafad..572bd4ac21c 100644 --- a/compiler/rustc_data_structures/src/profiling.rs +++ b/compiler/rustc_data_structures/src/profiling.rs @@ -87,6 +87,7 @@ use crate::fx::FxHashMap; use std::borrow::Borrow; use std::collections::hash_map::Entry; use std::error::Error; +use std::fmt::Display; use std::fs; use std::intrinsics::unlikely; use std::path::Path; @@ -97,7 +98,6 @@ use std::time::{Duration, Instant}; pub use measureme::EventId; use measureme::{EventIdBuilder, Profiler, SerializableString, StringId}; use parking_lot::RwLock; -use serde_json::json; use smallvec::SmallVec; bitflags::bitflags! { @@ -557,7 +557,7 @@ impl SelfProfiler { let crate_name = crate_name.unwrap_or("unknown-crate"); // HACK(eddyb) we need to pad the PID, strange as it may seem, as its // length can behave as a source of entropy for heap addresses, when - // ASLR is disabled and the heap is otherwise determinic. + // ASLR is disabled and the heap is otherwise deterministic. let pid: u32 = process::id(); let filename = format!("{crate_name}-{pid:07}.rustc_profile"); let path = output_directory.join(&filename); @@ -763,6 +763,31 @@ impl Drop for VerboseTimingGuard<'_> { } } +struct JsonTimePassesEntry<'a> { + pass: &'a str, + time: f64, + start_rss: Option<usize>, + end_rss: Option<usize>, +} + +impl Display for JsonTimePassesEntry<'_> { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + let Self { pass: what, time, start_rss, end_rss } = self; + write!(f, r#"{{"pass":"{what}","time":{time},"rss_start":"#).unwrap(); + match start_rss { + Some(rss) => write!(f, "{rss}")?, + None => write!(f, "null")?, + } + write!(f, r#","rss_end":"#)?; + match end_rss { + Some(rss) => write!(f, "{rss}")?, + None => write!(f, "null")?, + } + write!(f, "}}")?; + Ok(()) + } +} + pub fn print_time_passes_entry( what: &str, dur: Duration, @@ -772,13 +797,10 @@ pub fn print_time_passes_entry( ) { match format { TimePassesFormat::Json => { - let json = json!({ - "pass": what, - "time": dur.as_secs_f64(), - "rss_start": start_rss, - "rss_end": end_rss, - }); - eprintln!("time: {json}"); + let entry = + JsonTimePassesEntry { pass: what, time: dur.as_secs_f64(), start_rss, end_rss }; + + eprintln!(r#"time: {entry}"#); return; } TimePassesFormat::Text => (), @@ -894,3 +916,6 @@ cfg_if! { } } } + +#[cfg(test)] +mod tests; diff --git a/compiler/rustc_data_structures/src/profiling/tests.rs b/compiler/rustc_data_structures/src/profiling/tests.rs new file mode 100644 index 00000000000..2b09de085da --- /dev/null +++ b/compiler/rustc_data_structures/src/profiling/tests.rs @@ -0,0 +1,19 @@ +use super::JsonTimePassesEntry; + +#[test] +fn with_rss() { + let entry = + JsonTimePassesEntry { pass: "typeck", time: 56.1, start_rss: Some(10), end_rss: Some(20) }; + + assert_eq!(entry.to_string(), r#"{"pass":"typeck","time":56.1,"rss_start":10,"rss_end":20}"#) +} + +#[test] +fn no_rss() { + let entry = JsonTimePassesEntry { pass: "typeck", time: 56.1, start_rss: None, end_rss: None }; + + assert_eq!( + entry.to_string(), + r#"{"pass":"typeck","time":56.1,"rss_start":null,"rss_end":null}"# + ) +} diff --git a/compiler/rustc_data_structures/src/stable_hasher.rs b/compiler/rustc_data_structures/src/stable_hasher.rs index 3ed1de1bc3c..b2bd0bfe714 100644 --- a/compiler/rustc_data_structures/src/stable_hasher.rs +++ b/compiler/rustc_data_structures/src/stable_hasher.rs @@ -2,6 +2,7 @@ use crate::sip128::SipHasher128; use rustc_index::bit_set; use rustc_index::vec; use smallvec::SmallVec; +use std::fmt; use std::hash::{BuildHasher, Hash, Hasher}; use std::marker::PhantomData; use std::mem; @@ -9,6 +10,8 @@ use std::mem; #[cfg(test)] mod tests; +pub use crate::hashes::{Hash128, Hash64}; + /// When hashing something that ends up affecting properties like symbol names, /// we want these symbol names to be calculated independently of other factors /// like what architecture you're compiling *from*. @@ -20,8 +23,8 @@ pub struct StableHasher { state: SipHasher128, } -impl ::std::fmt::Debug for StableHasher { - fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { +impl fmt::Debug for StableHasher { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "{:?}", self.state) } } @@ -42,21 +45,6 @@ impl StableHasher { } } -impl StableHasherResult for u128 { - #[inline] - fn finish(hasher: StableHasher) -> Self { - let (_0, _1) = hasher.finalize(); - u128::from(_0) | (u128::from(_1) << 64) - } -} - -impl StableHasherResult for u64 { - #[inline] - fn finish(hasher: StableHasher) -> Self { - hasher.finalize().0 - } -} - impl StableHasher { #[inline] pub fn finalize(self) -> (u64, u64) { @@ -107,7 +95,8 @@ impl Hasher for StableHasher { #[inline] fn write_u128(&mut self, i: u128) { - self.state.write(&i.to_le_bytes()); + self.write_u64(i as u64); + self.write_u64((i >> 64) as u64); } #[inline] @@ -286,6 +275,9 @@ impl_stable_traits_for_trivial_type!(i128); impl_stable_traits_for_trivial_type!(char); impl_stable_traits_for_trivial_type!(()); +impl_stable_traits_for_trivial_type!(Hash64); +impl_stable_traits_for_trivial_type!(Hash128); + impl<CTX> HashStable<CTX> for ! { fn hash_stable(&self, _ctx: &mut CTX, _hasher: &mut StableHasher) { unreachable!() @@ -668,7 +660,7 @@ fn stable_hash_reduce<HCX, I, C, F>( .map(|value| { let mut hasher = StableHasher::new(); hash_function(&mut hasher, hcx, value); - hasher.finish::<u128>() + hasher.finish::<Hash128>() }) .reduce(|accum, value| accum.wrapping_add(value)); hash.hash_stable(hcx, hasher); diff --git a/compiler/rustc_data_structures/src/stable_hasher/tests.rs b/compiler/rustc_data_structures/src/stable_hasher/tests.rs index a98b1bc3626..c8921f6a778 100644 --- a/compiler/rustc_data_structures/src/stable_hasher/tests.rs +++ b/compiler/rustc_data_structures/src/stable_hasher/tests.rs @@ -72,7 +72,7 @@ fn test_hash_isize() { assert_eq!(h.finalize(), expected); } -fn hash<T: HashStable<()>>(t: &T) -> u128 { +fn hash<T: HashStable<()>>(t: &T) -> Hash128 { let mut h = StableHasher::new(); let ctx = &mut (); t.hash_stable(ctx, &mut h); diff --git a/compiler/rustc_data_structures/src/svh.rs b/compiler/rustc_data_structures/src/svh.rs index b955df94f16..a3d2724fcdb 100644 --- a/compiler/rustc_data_structures/src/svh.rs +++ b/compiler/rustc_data_structures/src/svh.rs @@ -24,7 +24,7 @@ impl Svh { } pub fn as_u64(&self) -> u64 { - self.hash.to_smaller_hash() + self.hash.to_smaller_hash().as_u64() } pub fn to_string(&self) -> String { diff --git a/compiler/rustc_data_structures/src/tagged_ptr.rs b/compiler/rustc_data_structures/src/tagged_ptr.rs index 651bc556c98..c26bffac678 100644 --- a/compiler/rustc_data_structures/src/tagged_ptr.rs +++ b/compiler/rustc_data_structures/src/tagged_ptr.rs @@ -3,166 +3,262 @@ //! In order to utilize the pointer packing, you must have two types: a pointer, //! and a tag. //! -//! The pointer must implement the `Pointer` trait, with the primary requirement -//! being conversion to and from a usize. Note that the pointer must be -//! dereferenceable, so raw pointers generally cannot implement the `Pointer` -//! trait. This implies that the pointer must also be nonzero. +//! The pointer must implement the [`Pointer`] trait, with the primary +//! requirement being convertible to and from a raw pointer. Note that the +//! pointer must be dereferenceable, so raw pointers generally cannot implement +//! the [`Pointer`] trait. This implies that the pointer must also be non-null. //! -//! Many common pointer types already implement the `Pointer` trait. +//! Many common pointer types already implement the [`Pointer`] trait. //! -//! The tag must implement the `Tag` trait. We assert that the tag and `Pointer` -//! are compatible at compile time. +//! The tag must implement the [`Tag`] trait. +//! +//! We assert that the tag and the [`Pointer`] types are compatible at compile +//! time. -use std::mem::ManuallyDrop; use std::ops::Deref; +use std::ptr::NonNull; use std::rc::Rc; use std::sync::Arc; +use crate::aligned::Aligned; + mod copy; mod drop; pub use copy::CopyTaggedPtr; pub use drop::TaggedPtr; -/// This describes the pointer type encapsulated by TaggedPtr. +/// This describes the pointer type encapsulated by [`TaggedPtr`] and +/// [`CopyTaggedPtr`]. /// /// # Safety /// -/// The usize returned from `into_usize` must be a valid, dereferenceable, -/// pointer to `<Self as Deref>::Target`. Note that pointers to `Pointee` must -/// be thin, even though `Pointee` may not be sized. +/// The pointer returned from [`into_ptr`] must be a [valid], pointer to +/// [`<Self as Deref>::Target`]. /// -/// Note that the returned pointer from `into_usize` should be castable to `&mut -/// <Self as Deref>::Target` if `Pointer: DerefMut`. +/// Note that if `Self` implements [`DerefMut`] the pointer returned from +/// [`into_ptr`] must be valid for writes (and thus calling [`NonNull::as_mut`] +/// on it must be safe). /// -/// The BITS constant must be correct. At least `BITS` bits, least-significant, -/// must be zero on all returned pointers from `into_usize`. +/// The [`BITS`] constant must be correct. [`BITS`] least-significant bits, +/// must be zero on all pointers returned from [`into_ptr`]. /// -/// For example, if the alignment of `Pointee` is 2, then `BITS` should be 1. +/// For example, if the alignment of [`Self::Target`] is 2, then `BITS` should be 1. +/// +/// [`BITS`]: Pointer::BITS +/// [`into_ptr`]: Pointer::into_ptr +/// [valid]: std::ptr#safety +/// [`<Self as Deref>::Target`]: Deref::Target +/// [`Self::Target`]: Deref::Target +/// [`DerefMut`]: std::ops::DerefMut pub unsafe trait Pointer: Deref { + /// Number of unused (always zero) **least-significant bits** in this + /// pointer, usually related to the pointees alignment. + /// + /// For example if [`BITS`] = `2`, then given `ptr = Self::into_ptr(..)`, + /// `ptr.addr() & 0b11 == 0` must be true. + /// /// Most likely the value you want to use here is the following, unless - /// your Pointee type is unsized (e.g., `ty::List<T>` in rustc) in which - /// case you'll need to manually figure out what the right type to pass to - /// align_of is. + /// your [`Self::Target`] type is unsized (e.g., `ty::List<T>` in rustc) + /// or your pointer is over/under aligned, in which case you'll need to + /// manually figure out what the right type to pass to [`bits_for`] is, or + /// what the value to set here. /// - /// ```ignore UNSOLVED (what to do about the Self) + /// ```rust /// # use std::ops::Deref; - /// std::mem::align_of::<<Self as Deref>::Target>().trailing_zeros() as usize; + /// # use rustc_data_structures::tagged_ptr::bits_for; + /// # struct T; + /// # impl Deref for T { type Target = u8; fn deref(&self) -> &u8 { &0 } } + /// # impl T { + /// const BITS: u32 = bits_for::<<Self as Deref>::Target>(); + /// # } /// ``` - const BITS: usize; - fn into_usize(self) -> usize; + /// + /// [`BITS`]: Pointer::BITS + /// [`Self::Target`]: Deref::Target + const BITS: u32; - /// # Safety + /// Turns this pointer into a raw, non-null pointer. + /// + /// The inverse of this function is [`from_ptr`]. /// - /// The passed `ptr` must be returned from `into_usize`. + /// This function guarantees that the least-significant [`Self::BITS`] bits + /// are zero. /// - /// This acts as `ptr::read` semantically, it should not be called more than - /// once on non-`Copy` `Pointer`s. - unsafe fn from_usize(ptr: usize) -> Self; + /// [`from_ptr`]: Pointer::from_ptr + /// [`Self::BITS`]: Pointer::BITS + fn into_ptr(self) -> NonNull<Self::Target>; - /// This provides a reference to the `Pointer` itself, rather than the - /// `Deref::Target`. It is used for cases where we want to call methods that - /// may be implement differently for the Pointer than the Pointee (e.g., - /// `Rc::clone` vs cloning the inner value). + /// Re-creates the original pointer, from a raw pointer returned by [`into_ptr`]. /// /// # Safety /// - /// The passed `ptr` must be returned from `into_usize`. - unsafe fn with_ref<R, F: FnOnce(&Self) -> R>(ptr: usize, f: F) -> R; + /// The passed `ptr` must be returned from [`into_ptr`]. + /// + /// This acts as [`ptr::read::<Self>()`] semantically, it should not be called more than + /// once on non-[`Copy`] `Pointer`s. + /// + /// [`into_ptr`]: Pointer::into_ptr + /// [`ptr::read::<Self>()`]: std::ptr::read + unsafe fn from_ptr(ptr: NonNull<Self::Target>) -> Self; } -/// This describes tags that the `TaggedPtr` struct can hold. +/// This describes tags that the [`TaggedPtr`] struct can hold. /// /// # Safety /// -/// The BITS constant must be correct. +/// The [`BITS`] constant must be correct. +/// +/// No more than [`BITS`] least-significant bits may be set in the returned usize. /// -/// No more than `BITS` least significant bits may be set in the returned usize. +/// [`BITS`]: Tag::BITS pub unsafe trait Tag: Copy { - const BITS: usize; + /// Number of least-significant bits in the return value of [`into_usize`] + /// which may be non-zero. In other words this is the bit width of the + /// value. + /// + /// [`into_usize`]: Tag::into_usize + const BITS: u32; + /// Turns this tag into an integer. + /// + /// The inverse of this function is [`from_usize`]. + /// + /// This function guarantees that only the least-significant [`Self::BITS`] + /// bits can be non-zero. + /// + /// [`from_usize`]: Tag::from_usize + /// [`Self::BITS`]: Tag::BITS fn into_usize(self) -> usize; + /// Re-creates the tag from the integer returned by [`into_usize`]. + /// /// # Safety /// - /// The passed `tag` must be returned from `into_usize`. + /// The passed `tag` must be returned from [`into_usize`]. + /// + /// [`into_usize`]: Tag::into_usize unsafe fn from_usize(tag: usize) -> Self; } -unsafe impl<T> Pointer for Box<T> { - const BITS: usize = std::mem::align_of::<T>().trailing_zeros() as usize; +unsafe impl<T: ?Sized + Aligned> Pointer for Box<T> { + const BITS: u32 = bits_for::<Self::Target>(); + #[inline] - fn into_usize(self) -> usize { - Box::into_raw(self) as usize + fn into_ptr(self) -> NonNull<T> { + // Safety: pointers from `Box::into_raw` are valid & non-null + unsafe { NonNull::new_unchecked(Box::into_raw(self)) } } + #[inline] - unsafe fn from_usize(ptr: usize) -> Self { - Box::from_raw(ptr as *mut T) - } - unsafe fn with_ref<R, F: FnOnce(&Self) -> R>(ptr: usize, f: F) -> R { - let raw = ManuallyDrop::new(Self::from_usize(ptr)); - f(&raw) + unsafe fn from_ptr(ptr: NonNull<T>) -> Self { + // Safety: `ptr` comes from `into_ptr` which calls `Box::into_raw` + Box::from_raw(ptr.as_ptr()) } } -unsafe impl<T> Pointer for Rc<T> { - const BITS: usize = std::mem::align_of::<T>().trailing_zeros() as usize; +unsafe impl<T: ?Sized + Aligned> Pointer for Rc<T> { + const BITS: u32 = bits_for::<Self::Target>(); + #[inline] - fn into_usize(self) -> usize { - Rc::into_raw(self) as usize + fn into_ptr(self) -> NonNull<T> { + // Safety: pointers from `Rc::into_raw` are valid & non-null + unsafe { NonNull::new_unchecked(Rc::into_raw(self).cast_mut()) } + } + + #[inline] + unsafe fn from_ptr(ptr: NonNull<T>) -> Self { + // Safety: `ptr` comes from `into_ptr` which calls `Rc::into_raw` + Rc::from_raw(ptr.as_ptr()) } +} + +unsafe impl<T: ?Sized + Aligned> Pointer for Arc<T> { + const BITS: u32 = bits_for::<Self::Target>(); + #[inline] - unsafe fn from_usize(ptr: usize) -> Self { - Rc::from_raw(ptr as *const T) + fn into_ptr(self) -> NonNull<T> { + // Safety: pointers from `Arc::into_raw` are valid & non-null + unsafe { NonNull::new_unchecked(Arc::into_raw(self).cast_mut()) } } - unsafe fn with_ref<R, F: FnOnce(&Self) -> R>(ptr: usize, f: F) -> R { - let raw = ManuallyDrop::new(Self::from_usize(ptr)); - f(&raw) + + #[inline] + unsafe fn from_ptr(ptr: NonNull<T>) -> Self { + // Safety: `ptr` comes from `into_ptr` which calls `Arc::into_raw` + Arc::from_raw(ptr.as_ptr()) } } -unsafe impl<T> Pointer for Arc<T> { - const BITS: usize = std::mem::align_of::<T>().trailing_zeros() as usize; +unsafe impl<'a, T: 'a + ?Sized + Aligned> Pointer for &'a T { + const BITS: u32 = bits_for::<Self::Target>(); + #[inline] - fn into_usize(self) -> usize { - Arc::into_raw(self) as usize + fn into_ptr(self) -> NonNull<T> { + NonNull::from(self) } + #[inline] - unsafe fn from_usize(ptr: usize) -> Self { - Arc::from_raw(ptr as *const T) - } - unsafe fn with_ref<R, F: FnOnce(&Self) -> R>(ptr: usize, f: F) -> R { - let raw = ManuallyDrop::new(Self::from_usize(ptr)); - f(&raw) + unsafe fn from_ptr(ptr: NonNull<T>) -> Self { + // Safety: + // `ptr` comes from `into_ptr` which gets the pointer from a reference + ptr.as_ref() } } -unsafe impl<'a, T: 'a> Pointer for &'a T { - const BITS: usize = std::mem::align_of::<T>().trailing_zeros() as usize; +unsafe impl<'a, T: 'a + ?Sized + Aligned> Pointer for &'a mut T { + const BITS: u32 = bits_for::<Self::Target>(); + #[inline] - fn into_usize(self) -> usize { - self as *const T as usize + fn into_ptr(self) -> NonNull<T> { + NonNull::from(self) } + #[inline] - unsafe fn from_usize(ptr: usize) -> Self { - &*(ptr as *const T) - } - unsafe fn with_ref<R, F: FnOnce(&Self) -> R>(ptr: usize, f: F) -> R { - f(&*(&ptr as *const usize as *const Self)) + unsafe fn from_ptr(mut ptr: NonNull<T>) -> Self { + // Safety: + // `ptr` comes from `into_ptr` which gets the pointer from a reference + ptr.as_mut() } } -unsafe impl<'a, T: 'a> Pointer for &'a mut T { - const BITS: usize = std::mem::align_of::<T>().trailing_zeros() as usize; - #[inline] +/// Returns the number of bits available for use for tags in a pointer to `T` +/// (this is based on `T`'s alignment). +pub const fn bits_for<T: ?Sized + Aligned>() -> u32 { + crate::aligned::align_of::<T>().as_nonzero().trailing_zeros() +} + +/// A tag type used in [`CopyTaggedPtr`] and [`TaggedPtr`] tests. +#[derive(Copy, Clone, Debug, PartialEq, Eq)] +#[cfg(test)] +enum Tag2 { + B00 = 0b00, + B01 = 0b01, + B10 = 0b10, + B11 = 0b11, +} + +#[cfg(test)] +unsafe impl Tag for Tag2 { + const BITS: u32 = 2; + fn into_usize(self) -> usize { - self as *mut T as usize + self as _ } - #[inline] - unsafe fn from_usize(ptr: usize) -> Self { - &mut *(ptr as *mut T) + + unsafe fn from_usize(tag: usize) -> Self { + match tag { + 0b00 => Tag2::B00, + 0b01 => Tag2::B01, + 0b10 => Tag2::B10, + 0b11 => Tag2::B11, + _ => unreachable!(), + } } - unsafe fn with_ref<R, F: FnOnce(&Self) -> R>(ptr: usize, f: F) -> R { - f(&*(&ptr as *const usize as *const Self)) +} + +#[cfg(test)] +impl<HCX> crate::stable_hasher::HashStable<HCX> for Tag2 { + fn hash_stable(&self, hcx: &mut HCX, hasher: &mut crate::stable_hasher::StableHasher) { + (*self as u8).hash_stable(hcx, hasher); } } diff --git a/compiler/rustc_data_structures/src/tagged_ptr/copy.rs b/compiler/rustc_data_structures/src/tagged_ptr/copy.rs index e1d3e0bd35a..691e92f196a 100644 --- a/compiler/rustc_data_structures/src/tagged_ptr/copy.rs +++ b/compiler/rustc_data_structures/src/tagged_ptr/copy.rs @@ -1,78 +1,92 @@ use super::{Pointer, Tag}; use crate::stable_hasher::{HashStable, StableHasher}; use std::fmt; +use std::hash::{Hash, Hasher}; use std::marker::PhantomData; +use std::mem::ManuallyDrop; use std::num::NonZeroUsize; +use std::ops::{Deref, DerefMut}; +use std::ptr::NonNull; -/// A `Copy` TaggedPtr. +/// A [`Copy`] tagged pointer. /// -/// You should use this instead of the `TaggedPtr` type in all cases where -/// `P: Copy`. +/// This is essentially `{ pointer: P, tag: T }` packed in a single pointer. +/// +/// You should use this instead of the [`TaggedPtr`] type in all cases where +/// `P` implements [`Copy`]. /// /// If `COMPARE_PACKED` is true, then the pointers will be compared and hashed without -/// unpacking. Otherwise we don't implement PartialEq/Eq/Hash; if you want that, -/// wrap the TaggedPtr. +/// unpacking. Otherwise we don't implement [`PartialEq`], [`Eq`] and [`Hash`]; +/// if you want that, wrap the [`CopyTaggedPtr`]. +/// +/// [`TaggedPtr`]: crate::tagged_ptr::TaggedPtr pub struct CopyTaggedPtr<P, T, const COMPARE_PACKED: bool> where P: Pointer, T: Tag, { - packed: NonZeroUsize, - data: PhantomData<(P, T)>, -} - -impl<P, T, const COMPARE_PACKED: bool> Copy for CopyTaggedPtr<P, T, COMPARE_PACKED> -where - P: Pointer, - T: Tag, - P: Copy, -{ -} - -impl<P, T, const COMPARE_PACKED: bool> Clone for CopyTaggedPtr<P, T, COMPARE_PACKED> -where - P: Pointer, - T: Tag, - P: Copy, -{ - fn clone(&self) -> Self { - *self - } + /// This is semantically a pair of `pointer: P` and `tag: T` fields, + /// however we pack them in a single pointer, to save space. + /// + /// We pack the tag into the **most**-significant bits of the pointer to + /// ease retrieval of the value. A left shift is a multiplication and + /// those are embeddable in instruction encoding, for example: + /// + /// ```asm + /// // (<https://godbolt.org/z/jqcYPWEr3>) + /// example::shift_read3: + /// mov eax, dword ptr [8*rdi] + /// ret + /// + /// example::mask_read3: + /// and rdi, -8 + /// mov eax, dword ptr [rdi] + /// ret + /// ``` + /// + /// This is ASM outputted by rustc for reads of values behind tagged + /// pointers for different approaches of tagging: + /// - `shift_read3` uses `<< 3` (the tag is in the most-significant bits) + /// - `mask_read3` uses `& !0b111` (the tag is in the least-significant bits) + /// + /// The shift approach thus produces less instructions and is likely faster + /// (see <https://godbolt.org/z/Y913sMdWb>). + /// + /// Encoding diagram: + /// ```text + /// [ packed.addr ] + /// [ tag ] [ pointer.addr >> T::BITS ] <-- usize::BITS - T::BITS bits + /// ^ + /// | + /// T::BITS bits + /// ``` + /// + /// The tag can be retrieved by `packed.addr() >> T::BITS` and the pointer + /// can be retrieved by `packed.map_addr(|addr| addr << T::BITS)`. + packed: NonNull<P::Target>, + tag_ghost: PhantomData<T>, } -// We pack the tag into the *upper* bits of the pointer to ease retrieval of the -// value; a left shift is a multiplication and those are embeddable in -// instruction encoding. -impl<P, T, const COMPARE_PACKED: bool> CopyTaggedPtr<P, T, COMPARE_PACKED> +// Note that even though `CopyTaggedPtr` is only really expected to work with +// `P: Copy`, can't add `P: Copy` bound, because `CopyTaggedPtr` is used in the +// `TaggedPtr`'s implementation. +impl<P, T, const CP: bool> CopyTaggedPtr<P, T, CP> where P: Pointer, T: Tag, { - const TAG_BIT_SHIFT: usize = usize::BITS as usize - T::BITS; - const ASSERTION: () = { - assert!(T::BITS <= P::BITS); - // Used for the transmute_copy's below - assert!(std::mem::size_of::<&P::Target>() == std::mem::size_of::<usize>()); - }; - + /// Tags `pointer` with `tag`. + /// + /// Note that this leaks `pointer`: it won't be dropped when + /// `CopyTaggedPtr` is dropped. If you have a pointer with a significant + /// drop, use [`TaggedPtr`] instead. + /// + /// [`TaggedPtr`]: crate::tagged_ptr::TaggedPtr pub fn new(pointer: P, tag: T) -> Self { - // Trigger assert! - let () = Self::ASSERTION; - let packed_tag = tag.into_usize() << Self::TAG_BIT_SHIFT; - - Self { - // SAFETY: We know that the pointer is non-null, as it must be - // dereferenceable per `Pointer` safety contract. - packed: unsafe { - NonZeroUsize::new_unchecked((P::into_usize(pointer) >> T::BITS) | packed_tag) - }, - data: PhantomData, - } + Self { packed: Self::pack(P::into_ptr(pointer), tag), tag_ghost: PhantomData } } - pub(super) fn pointer_raw(&self) -> usize { - self.packed.get() << T::BITS - } + /// Retrieves the pointer. pub fn pointer(self) -> P where P: Copy, @@ -81,66 +95,138 @@ where // // Note that this isn't going to double-drop or anything because we have // P: Copy - unsafe { P::from_usize(self.pointer_raw()) } - } - pub fn pointer_ref(&self) -> &P::Target { - // SAFETY: pointer_raw returns the original pointer - unsafe { std::mem::transmute_copy(&self.pointer_raw()) } - } - pub fn pointer_mut(&mut self) -> &mut P::Target - where - P: std::ops::DerefMut, - { - // SAFETY: pointer_raw returns the original pointer - unsafe { std::mem::transmute_copy(&self.pointer_raw()) } + unsafe { P::from_ptr(self.pointer_raw()) } } + + /// Retrieves the tag. #[inline] pub fn tag(&self) -> T { - unsafe { T::from_usize(self.packed.get() >> Self::TAG_BIT_SHIFT) } + // Unpack the tag, according to the `self.packed` encoding scheme + let tag = self.packed.addr().get() >> Self::TAG_BIT_SHIFT; + + // Safety: + // The shift retrieves the original value from `T::into_usize`, + // satisfying `T::from_usize`'s preconditions. + unsafe { T::from_usize(tag) } } + + /// Sets the tag to a new value. #[inline] pub fn set_tag(&mut self, tag: T) { - let mut packed = self.packed.get(); - let new_tag = T::into_usize(tag) << Self::TAG_BIT_SHIFT; - let tag_mask = (1 << T::BITS) - 1; - packed &= !(tag_mask << Self::TAG_BIT_SHIFT); - packed |= new_tag; - self.packed = unsafe { NonZeroUsize::new_unchecked(packed) }; + self.packed = Self::pack(self.pointer_raw(), tag); + } + + const TAG_BIT_SHIFT: u32 = usize::BITS - T::BITS; + const ASSERTION: () = { assert!(T::BITS <= P::BITS) }; + + /// Pack pointer `ptr` that comes from [`P::into_ptr`] with a `tag`, + /// according to `self.packed` encoding scheme. + /// + /// [`P::into_ptr`]: Pointer::into_ptr + fn pack(ptr: NonNull<P::Target>, tag: T) -> NonNull<P::Target> { + // Trigger assert! + let () = Self::ASSERTION; + + let packed_tag = tag.into_usize() << Self::TAG_BIT_SHIFT; + + ptr.map_addr(|addr| { + // Safety: + // - The pointer is `NonNull` => it's address is `NonZeroUsize` + // - `P::BITS` least significant bits are always zero (`Pointer` contract) + // - `T::BITS <= P::BITS` (from `Self::ASSERTION`) + // + // Thus `addr >> T::BITS` is guaranteed to be non-zero. + // + // `{non_zero} | packed_tag` can't make the value zero. + + let packed = (addr.get() >> T::BITS) | packed_tag; + unsafe { NonZeroUsize::new_unchecked(packed) } + }) + } + + /// Retrieves the original raw pointer from `self.packed`. + pub(super) fn pointer_raw(&self) -> NonNull<P::Target> { + self.packed.map_addr(|addr| unsafe { NonZeroUsize::new_unchecked(addr.get() << T::BITS) }) + } + + /// This provides a reference to the `P` pointer itself, rather than the + /// `Deref::Target`. It is used for cases where we want to call methods + /// that may be implement differently for the Pointer than the Pointee + /// (e.g., `Rc::clone` vs cloning the inner value). + pub(super) fn with_pointer_ref<R>(&self, f: impl FnOnce(&P) -> R) -> R { + // Safety: + // - `self.raw.pointer_raw()` is originally returned from `P::into_ptr` + // and as such is valid for `P::from_ptr`. + // - This also allows us to not care whatever `f` panics or not. + // - Even though we create a copy of the pointer, we store it inside + // `ManuallyDrop` and only access it by-ref, so we don't double-drop. + // + // Semantically this is just `f(&self.pointer)` (where `self.pointer` + // is non-packed original pointer). + // + // Note that even though `CopyTaggedPtr` is only really expected to + // work with `P: Copy`, we have to assume `P: ?Copy`, because + // `CopyTaggedPtr` is used in the `TaggedPtr`'s implementation. + let ptr = unsafe { ManuallyDrop::new(P::from_ptr(self.pointer_raw())) }; + f(&ptr) } } -impl<P, T, const COMPARE_PACKED: bool> std::ops::Deref for CopyTaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, const CP: bool> Copy for CopyTaggedPtr<P, T, CP> +where + P: Pointer + Copy, + T: Tag, +{ +} + +impl<P, T, const CP: bool> Clone for CopyTaggedPtr<P, T, CP> +where + P: Pointer + Copy, + T: Tag, +{ + fn clone(&self) -> Self { + *self + } +} + +impl<P, T, const CP: bool> Deref for CopyTaggedPtr<P, T, CP> where P: Pointer, T: Tag, { type Target = P::Target; + fn deref(&self) -> &Self::Target { - self.pointer_ref() + // Safety: + // `pointer_raw` returns the original pointer from `P::into_ptr` which, + // by the `Pointer`'s contract, must be valid. + unsafe { self.pointer_raw().as_ref() } } } -impl<P, T, const COMPARE_PACKED: bool> std::ops::DerefMut for CopyTaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, const CP: bool> DerefMut for CopyTaggedPtr<P, T, CP> where - P: Pointer + std::ops::DerefMut, + P: Pointer + DerefMut, T: Tag, { fn deref_mut(&mut self) -> &mut Self::Target { - self.pointer_mut() + // Safety: + // `pointer_raw` returns the original pointer from `P::into_ptr` which, + // by the `Pointer`'s contract, must be valid for writes if + // `P: DerefMut`. + unsafe { self.pointer_raw().as_mut() } } } -impl<P, T, const COMPARE_PACKED: bool> fmt::Debug for CopyTaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, const CP: bool> fmt::Debug for CopyTaggedPtr<P, T, CP> where - P: Pointer, - P::Target: fmt::Debug, + P: Pointer + fmt::Debug, T: Tag + fmt::Debug, { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("CopyTaggedPtr") - .field("pointer", &self.pointer_ref()) - .field("tag", &self.tag()) - .finish() + self.with_pointer_ref(|ptr| { + f.debug_struct("CopyTaggedPtr").field("pointer", ptr).field("tag", &self.tag()).finish() + }) } } @@ -161,25 +247,73 @@ where { } -impl<P, T> std::hash::Hash for CopyTaggedPtr<P, T, true> +impl<P, T> Hash for CopyTaggedPtr<P, T, true> where P: Pointer, T: Tag, { - fn hash<H: std::hash::Hasher>(&self, state: &mut H) { + fn hash<H: Hasher>(&self, state: &mut H) { self.packed.hash(state); } } -impl<P, T, HCX, const COMPARE_PACKED: bool> HashStable<HCX> for CopyTaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, HCX, const CP: bool> HashStable<HCX> for CopyTaggedPtr<P, T, CP> where P: Pointer + HashStable<HCX>, T: Tag + HashStable<HCX>, { fn hash_stable(&self, hcx: &mut HCX, hasher: &mut StableHasher) { - unsafe { - Pointer::with_ref(self.pointer_raw(), |p: &P| p.hash_stable(hcx, hasher)); - } + self.with_pointer_ref(|ptr| ptr.hash_stable(hcx, hasher)); self.tag().hash_stable(hcx, hasher); } } + +// Safety: +// `CopyTaggedPtr<P, T, ..>` is semantically just `{ ptr: P, tag: T }`, as such +// it's ok to implement `Sync` as long as `P: Sync, T: Sync` +unsafe impl<P, T, const CP: bool> Sync for CopyTaggedPtr<P, T, CP> +where + P: Sync + Pointer, + T: Sync + Tag, +{ +} + +// Safety: +// `CopyTaggedPtr<P, T, ..>` is semantically just `{ ptr: P, tag: T }`, as such +// it's ok to implement `Send` as long as `P: Send, T: Send` +unsafe impl<P, T, const CP: bool> Send for CopyTaggedPtr<P, T, CP> +where + P: Send + Pointer, + T: Send + Tag, +{ +} + +/// Test that `new` does not compile if there is not enough alignment for the +/// tag in the pointer. +/// +/// ```compile_fail,E0080 +/// use rustc_data_structures::tagged_ptr::{CopyTaggedPtr, Tag}; +/// +/// #[derive(Copy, Clone, Debug, PartialEq, Eq)] +/// enum Tag2 { B00 = 0b00, B01 = 0b01, B10 = 0b10, B11 = 0b11 }; +/// +/// unsafe impl Tag for Tag2 { +/// const BITS: u32 = 2; +/// +/// fn into_usize(self) -> usize { todo!() } +/// unsafe fn from_usize(tag: usize) -> Self { todo!() } +/// } +/// +/// let value = 12u16; +/// let reference = &value; +/// let tag = Tag2::B01; +/// +/// let _ptr = CopyTaggedPtr::<_, _, true>::new(reference, tag); +/// ``` +// For some reason miri does not get the compile error +// probably it `check`s instead of `build`ing? +#[cfg(not(miri))] +const _: () = (); + +#[cfg(test)] +mod tests; diff --git a/compiler/rustc_data_structures/src/tagged_ptr/copy/tests.rs b/compiler/rustc_data_structures/src/tagged_ptr/copy/tests.rs new file mode 100644 index 00000000000..bfcc2e603de --- /dev/null +++ b/compiler/rustc_data_structures/src/tagged_ptr/copy/tests.rs @@ -0,0 +1,50 @@ +use std::ptr; + +use crate::stable_hasher::{HashStable, StableHasher}; +use crate::tagged_ptr::{CopyTaggedPtr, Pointer, Tag, Tag2}; + +#[test] +fn smoke() { + let value = 12u32; + let reference = &value; + let tag = Tag2::B01; + + let ptr = tag_ptr(reference, tag); + + assert_eq!(ptr.tag(), tag); + assert_eq!(*ptr, 12); + assert!(ptr::eq(ptr.pointer(), reference)); + + let copy = ptr; + + let mut ptr = ptr; + ptr.set_tag(Tag2::B00); + assert_eq!(ptr.tag(), Tag2::B00); + + assert_eq!(copy.tag(), tag); + assert_eq!(*copy, 12); + assert!(ptr::eq(copy.pointer(), reference)); +} + +#[test] +fn stable_hash_hashes_as_tuple() { + let hash_packed = { + let mut hasher = StableHasher::new(); + tag_ptr(&12, Tag2::B11).hash_stable(&mut (), &mut hasher); + + hasher.finalize() + }; + + let hash_tupled = { + let mut hasher = StableHasher::new(); + (&12, Tag2::B11).hash_stable(&mut (), &mut hasher); + hasher.finalize() + }; + + assert_eq!(hash_packed, hash_tupled); +} + +/// Helper to create tagged pointers without specifying `COMPARE_PACKED` if it does not matter. +fn tag_ptr<P: Pointer, T: Tag>(ptr: P, tag: T) -> CopyTaggedPtr<P, T, true> { + CopyTaggedPtr::new(ptr, tag) +} diff --git a/compiler/rustc_data_structures/src/tagged_ptr/drop.rs b/compiler/rustc_data_structures/src/tagged_ptr/drop.rs index b0315c93d93..d418c06b7eb 100644 --- a/compiler/rustc_data_structures/src/tagged_ptr/drop.rs +++ b/compiler/rustc_data_structures/src/tagged_ptr/drop.rs @@ -1,14 +1,21 @@ -use super::{Pointer, Tag}; -use crate::stable_hasher::{HashStable, StableHasher}; use std::fmt; +use std::hash::{Hash, Hasher}; +use std::ops::{Deref, DerefMut}; use super::CopyTaggedPtr; +use super::{Pointer, Tag}; +use crate::stable_hasher::{HashStable, StableHasher}; -/// A TaggedPtr implementing `Drop`. +/// A tagged pointer that supports pointers that implement [`Drop`]. +/// +/// This is essentially `{ pointer: P, tag: T }` packed in a single pointer. +/// +/// You should use [`CopyTaggedPtr`] instead of the this type in all cases +/// where `P` implements [`Copy`]. /// /// If `COMPARE_PACKED` is true, then the pointers will be compared and hashed without -/// unpacking. Otherwise we don't implement PartialEq/Eq/Hash; if you want that, -/// wrap the TaggedPtr. +/// unpacking. Otherwise we don't implement [`PartialEq`], [`Eq`] and [`Hash`]; +/// if you want that, wrap the [`TaggedPtr`]. pub struct TaggedPtr<P, T, const COMPARE_PACKED: bool> where P: Pointer, @@ -17,58 +24,61 @@ where raw: CopyTaggedPtr<P, T, COMPARE_PACKED>, } -impl<P, T, const COMPARE_PACKED: bool> Clone for TaggedPtr<P, T, COMPARE_PACKED> -where - P: Pointer + Clone, - T: Tag, -{ - fn clone(&self) -> Self { - unsafe { Self::new(P::with_ref(self.raw.pointer_raw(), |p| p.clone()), self.raw.tag()) } - } -} - -// We pack the tag into the *upper* bits of the pointer to ease retrieval of the -// value; a right shift is a multiplication and those are embeddable in -// instruction encoding. -impl<P, T, const COMPARE_PACKED: bool> TaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, const CP: bool> TaggedPtr<P, T, CP> where P: Pointer, T: Tag, { + /// Tags `pointer` with `tag`. pub fn new(pointer: P, tag: T) -> Self { TaggedPtr { raw: CopyTaggedPtr::new(pointer, tag) } } - pub fn pointer_ref(&self) -> &P::Target { - self.raw.pointer_ref() - } + /// Retrieves the tag. pub fn tag(&self) -> T { self.raw.tag() } + + /// Sets the tag to a new value. + pub fn set_tag(&mut self, tag: T) { + self.raw.set_tag(tag) + } } -impl<P, T, const COMPARE_PACKED: bool> std::ops::Deref for TaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, const CP: bool> Clone for TaggedPtr<P, T, CP> +where + P: Pointer + Clone, + T: Tag, +{ + fn clone(&self) -> Self { + let ptr = self.raw.with_pointer_ref(P::clone); + + Self::new(ptr, self.tag()) + } +} + +impl<P, T, const CP: bool> Deref for TaggedPtr<P, T, CP> where P: Pointer, T: Tag, { type Target = P::Target; fn deref(&self) -> &Self::Target { - self.raw.pointer_ref() + self.raw.deref() } } -impl<P, T, const COMPARE_PACKED: bool> std::ops::DerefMut for TaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, const CP: bool> DerefMut for TaggedPtr<P, T, CP> where - P: Pointer + std::ops::DerefMut, + P: Pointer + DerefMut, T: Tag, { fn deref_mut(&mut self) -> &mut Self::Target { - self.raw.pointer_mut() + self.raw.deref_mut() } } -impl<P, T, const COMPARE_PACKED: bool> Drop for TaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, const CP: bool> Drop for TaggedPtr<P, T, CP> where P: Pointer, T: Tag, @@ -76,22 +86,20 @@ where fn drop(&mut self) { // No need to drop the tag, as it's Copy unsafe { - drop(P::from_usize(self.raw.pointer_raw())); + drop(P::from_ptr(self.raw.pointer_raw())); } } } -impl<P, T, const COMPARE_PACKED: bool> fmt::Debug for TaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, const CP: bool> fmt::Debug for TaggedPtr<P, T, CP> where - P: Pointer, - P::Target: fmt::Debug, + P: Pointer + fmt::Debug, T: Tag + fmt::Debug, { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("TaggedPtr") - .field("pointer", &self.pointer_ref()) - .field("tag", &self.tag()) - .finish() + self.raw.with_pointer_ref(|ptr| { + f.debug_struct("TaggedPtr").field("pointer", ptr).field("tag", &self.tag()).finish() + }) } } @@ -112,17 +120,17 @@ where { } -impl<P, T> std::hash::Hash for TaggedPtr<P, T, true> +impl<P, T> Hash for TaggedPtr<P, T, true> where P: Pointer, T: Tag, { - fn hash<H: std::hash::Hasher>(&self, state: &mut H) { + fn hash<H: Hasher>(&self, state: &mut H) { self.raw.hash(state); } } -impl<P, T, HCX, const COMPARE_PACKED: bool> HashStable<HCX> for TaggedPtr<P, T, COMPARE_PACKED> +impl<P, T, HCX, const CP: bool> HashStable<HCX> for TaggedPtr<P, T, CP> where P: Pointer + HashStable<HCX>, T: Tag + HashStable<HCX>, @@ -131,3 +139,33 @@ where self.raw.hash_stable(hcx, hasher); } } + +/// Test that `new` does not compile if there is not enough alignment for the +/// tag in the pointer. +/// +/// ```compile_fail,E0080 +/// use rustc_data_structures::tagged_ptr::{TaggedPtr, Tag}; +/// +/// #[derive(Copy, Clone, Debug, PartialEq, Eq)] +/// enum Tag2 { B00 = 0b00, B01 = 0b01, B10 = 0b10, B11 = 0b11 }; +/// +/// unsafe impl Tag for Tag2 { +/// const BITS: u32 = 2; +/// +/// fn into_usize(self) -> usize { todo!() } +/// unsafe fn from_usize(tag: usize) -> Self { todo!() } +/// } +/// +/// let value = 12u16; +/// let reference = &value; +/// let tag = Tag2::B01; +/// +/// let _ptr = TaggedPtr::<_, _, true>::new(reference, tag); +/// ``` +// For some reason miri does not get the compile error +// probably it `check`s instead of `build`ing? +#[cfg(not(miri))] +const _: () = (); + +#[cfg(test)] +mod tests; diff --git a/compiler/rustc_data_structures/src/tagged_ptr/drop/tests.rs b/compiler/rustc_data_structures/src/tagged_ptr/drop/tests.rs new file mode 100644 index 00000000000..2c17d678d3a --- /dev/null +++ b/compiler/rustc_data_structures/src/tagged_ptr/drop/tests.rs @@ -0,0 +1,71 @@ +use std::{ptr, sync::Arc}; + +use crate::tagged_ptr::{Pointer, Tag, Tag2, TaggedPtr}; + +#[test] +fn smoke() { + let value = 12u32; + let reference = &value; + let tag = Tag2::B01; + + let ptr = tag_ptr(reference, tag); + + assert_eq!(ptr.tag(), tag); + assert_eq!(*ptr, 12); + + let clone = ptr.clone(); + assert_eq!(clone.tag(), tag); + assert_eq!(*clone, 12); + + let mut ptr = ptr; + ptr.set_tag(Tag2::B00); + assert_eq!(ptr.tag(), Tag2::B00); + + assert_eq!(clone.tag(), tag); + assert_eq!(*clone, 12); + assert!(ptr::eq(&*ptr, &*clone)) +} + +#[test] +fn boxed() { + let value = 12u32; + let boxed = Box::new(value); + let tag = Tag2::B01; + + let ptr = tag_ptr(boxed, tag); + + assert_eq!(ptr.tag(), tag); + assert_eq!(*ptr, 12); + + let clone = ptr.clone(); + assert_eq!(clone.tag(), tag); + assert_eq!(*clone, 12); + + let mut ptr = ptr; + ptr.set_tag(Tag2::B00); + assert_eq!(ptr.tag(), Tag2::B00); + + assert_eq!(clone.tag(), tag); + assert_eq!(*clone, 12); + assert!(!ptr::eq(&*ptr, &*clone)) +} + +#[test] +fn arclones() { + let value = 12u32; + let arc = Arc::new(value); + let tag = Tag2::B01; + + let ptr = tag_ptr(arc, tag); + + assert_eq!(ptr.tag(), tag); + assert_eq!(*ptr, 12); + + let clone = ptr.clone(); + assert!(ptr::eq(&*ptr, &*clone)) +} + +/// Helper to create tagged pointers without specifying `COMPARE_PACKED` if it does not matter. +fn tag_ptr<P: Pointer, T: Tag>(ptr: P, tag: T) -> TaggedPtr<P, T, true> { + TaggedPtr::new(ptr, tag) +} diff --git a/compiler/rustc_error_codes/src/error_codes/E0026.md b/compiler/rustc_error_codes/src/error_codes/E0026.md index 72c575aabb6..f485112cca2 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0026.md +++ b/compiler/rustc_error_codes/src/error_codes/E0026.md @@ -1,4 +1,4 @@ -A struct pattern attempted to extract a non-existent field from a struct. +A struct pattern attempted to extract a nonexistent field from a struct. Erroneous code example: diff --git a/compiler/rustc_error_codes/src/error_codes/E0208.md b/compiler/rustc_error_codes/src/error_codes/E0208.md index 1ae01106f20..c6db9b5d61b 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0208.md +++ b/compiler/rustc_error_codes/src/error_codes/E0208.md @@ -32,7 +32,7 @@ error: [-, o] This error is deliberately triggered with the `#[rustc_variance]` attribute (`#![feature(rustc_attrs)]` must be enabled) and helps to show you the variance of the type's generic parameters. You can read more about variance and -subtyping in [this section of the Rustnomicon]. For a more in depth look at +subtyping in [this section of the Rustonomicon]. For a more in depth look at variance (including a more complete list of common variances) see [this section of the Reference]. For information on how variance is implemented in the compiler, see [this section of `rustc-dev-guide`]. @@ -41,6 +41,6 @@ This error can be easily fixed by removing the `#[rustc_variance]` attribute, the compiler's suggestion to comment it out can be applied automatically with `rustfix`. -[this section of the Rustnomicon]: https://doc.rust-lang.org/nomicon/subtyping.html +[this section of the Rustonomicon]: https://doc.rust-lang.org/nomicon/subtyping.html [this section of the Reference]: https://doc.rust-lang.org/reference/subtyping.html#variance [this section of `rustc-dev-guide`]: https://rustc-dev-guide.rust-lang.org/variance.html diff --git a/compiler/rustc_error_codes/src/error_codes/E0311.md b/compiler/rustc_error_codes/src/error_codes/E0311.md index 08159d3f469..c1104a88a76 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0311.md +++ b/compiler/rustc_error_codes/src/error_codes/E0311.md @@ -29,7 +29,7 @@ If `no_restriction()` were to use `&T` instead of `&()` as an argument, the compiler would have added an implied bound, causing this to compile. This error can be resolved by explicitly naming the elided lifetime for `x` and -then explicily requiring that the generic parameter `T` outlives that lifetime: +then explicitly requiring that the generic parameter `T` outlives that lifetime: ``` fn no_restriction<'a, T: 'a>(x: &'a ()) -> &'a () { diff --git a/compiler/rustc_error_codes/src/error_codes/E0457.md b/compiler/rustc_error_codes/src/error_codes/E0457.md index 53d384d36c4..2c33d1e6a24 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0457.md +++ b/compiler/rustc_error_codes/src/error_codes/E0457.md @@ -1,6 +1,6 @@ Plugin `..` only found in rlib format, but must be available in dylib format. -Erroronous code example: +Erroneous code example: `rlib-plugin.rs` ```ignore (needs-linkage-with-other-tests) diff --git a/compiler/rustc_error_codes/src/error_codes/E0576.md b/compiler/rustc_error_codes/src/error_codes/E0576.md index 8eead4e7e3b..300a57a1985 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0576.md +++ b/compiler/rustc_error_codes/src/error_codes/E0576.md @@ -10,7 +10,7 @@ trait Hello { } ``` -In this example, we tried to use the non-existent associated type `You` of the +In this example, we tried to use the nonexistent associated type `You` of the `Hello` trait. To fix this error, use an existing associated type: ``` diff --git a/compiler/rustc_error_codes/src/error_codes/E0609.md b/compiler/rustc_error_codes/src/error_codes/E0609.md index a9db34f474e..0f5ac94e6d5 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0609.md +++ b/compiler/rustc_error_codes/src/error_codes/E0609.md @@ -1,4 +1,4 @@ -Attempted to access a non-existent field in a struct. +Attempted to access a nonexistent field in a struct. Erroneous code example: diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs index fe44799efdb..8c76d5e010f 100644 --- a/compiler/rustc_errors/src/emitter.rs +++ b/compiler/rustc_errors/src/emitter.rs @@ -1980,7 +1980,7 @@ impl EmitterWriter { } if let DisplaySuggestion::Add = show_code_change && is_item_attribute { // The suggestion adds an entire line of code, ending on a newline, so we'll also - // print the *following* line, to provide context of what we're advicing people to + // print the *following* line, to provide context of what we're advising people to // do. Otherwise you would only see contextless code that can be confused for // already existing code, despite the colors and UI elements. // We special case `#[derive(_)]\n` and other attribute suggestions, because those diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index d20b168904d..26791304ef1 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -31,7 +31,7 @@ use Level::*; use emitter::{is_case_difference, Emitter, EmitterWriter}; use registry::Registry; use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet}; -use rustc_data_structures::stable_hasher::StableHasher; +use rustc_data_structures::stable_hasher::{Hash128, StableHasher}; use rustc_data_structures::sync::{self, Lock, Lrc}; use rustc_data_structures::AtomicRef; pub use rustc_error_messages::{ @@ -427,7 +427,7 @@ struct HandlerInner { /// This set contains a hash of every diagnostic that has been emitted by /// this handler. These hashes is used to avoid emitting the same error /// twice. - emitted_diagnostics: FxHashSet<u128>, + emitted_diagnostics: FxHashSet<Hash128>, /// Stashed diagnostics emitted in one stage of the compiler that may be /// stolen by other stages (e.g. to improve them and add more information). diff --git a/compiler/rustc_expand/src/mbe/macro_rules.rs b/compiler/rustc_expand/src/mbe/macro_rules.rs index 5679cdcbbd0..3aeb2edb54c 100644 --- a/compiler/rustc_expand/src/mbe/macro_rules.rs +++ b/compiler/rustc_expand/src/mbe/macro_rules.rs @@ -341,7 +341,7 @@ pub(super) fn try_match_macro<'matcher, T: Tracker<'matcher>>( Success(named_matches) => { debug!("Parsed arm successfully"); // The matcher was `Success(..)`ful. - // Merge the gated spans from parsing the matcher with the pre-existing ones. + // Merge the gated spans from parsing the matcher with the preexisting ones. sess.gated_spans.merge(gated_spans_snapshot); return Ok((i, named_matches)); @@ -873,7 +873,7 @@ impl<'tt> FirstSets<'tt> { } } -// Most `mbe::TokenTree`s are pre-existing in the matcher, but some are defined +// Most `mbe::TokenTree`s are preexisting in the matcher, but some are defined // implicitly, such as opening/closing delimiters and sequence repetition ops. // This type encapsulates both kinds. It implements `Clone` while avoiding the // need for `mbe::TokenTree` to implement `Clone`. diff --git a/compiler/rustc_expand/src/tests.rs b/compiler/rustc_expand/src/tests.rs index 480d95b77e9..8a5e09475ff 100644 --- a/compiler/rustc_expand/src/tests.rs +++ b/compiler/rustc_expand/src/tests.rs @@ -513,7 +513,7 @@ error: foo } #[test] -fn non_overlaping() { +fn non_overlapping() { test_harness( r#" fn foo() { @@ -552,7 +552,7 @@ error: foo } #[test] -fn overlaping_start_and_end() { +fn overlapping_start_and_end() { test_harness( r#" fn foo() { diff --git a/compiler/rustc_feature/src/removed.rs b/compiler/rustc_feature/src/removed.rs index 48d9fbfa6d2..876a31abdf8 100644 --- a/compiler/rustc_feature/src/removed.rs +++ b/compiler/rustc_feature/src/removed.rs @@ -139,7 +139,7 @@ declare_features! ( /// Allows using `#[on_unimplemented(..)]` on traits. /// (Moved to `rustc_attrs`.) (removed, on_unimplemented, "1.40.0", None, None, None), - /// A way to temporarily opt out of opt in copy. This will *never* be accepted. + /// A way to temporarily opt out of opt-in copy. This will *never* be accepted. (removed, opt_out_copy, "1.0.0", None, None, None), /// Allows features specific to OIBIT (now called auto traits). /// Renamed to `auto_traits`. diff --git a/compiler/rustc_hir/src/definitions.rs b/compiler/rustc_hir/src/definitions.rs index 8ceb176491b..5a5a1e44f12 100644 --- a/compiler/rustc_hir/src/definitions.rs +++ b/compiler/rustc_hir/src/definitions.rs @@ -9,7 +9,7 @@ use crate::def_id::{CrateNum, DefIndex, LocalDefId, StableCrateId, CRATE_DEF_IND use crate::def_path_hash_map::DefPathHashMap; use rustc_data_structures::fx::FxHashMap; -use rustc_data_structures::stable_hasher::StableHasher; +use rustc_data_structures::stable_hasher::{Hash64, StableHasher}; use rustc_index::vec::IndexVec; use rustc_span::symbol::{kw, sym, Symbol}; @@ -130,7 +130,7 @@ impl DefKey { disambiguator.hash(&mut hasher); - let local_hash: u64 = hasher.finish(); + let local_hash = hasher.finish(); // Construct the new DefPathHash, making sure that the `crate_id` // portion of the hash is properly copied from the parent. This way the @@ -325,7 +325,7 @@ impl Definitions { }, }; - let parent_hash = DefPathHash::new(stable_crate_id, 0); + let parent_hash = DefPathHash::new(stable_crate_id, Hash64::ZERO); let def_path_hash = key.compute_stable_hash(parent_hash); // Create the root definition. diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index b274e628079..fb0c087bfb4 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -3146,7 +3146,6 @@ impl<'hir> Item<'hir> { (ty, gen) } - /// An opaque `impl Trait` type alias, e.g., `type Foo = impl Bar;`. /// Expect an [`ItemKind::OpaqueTy`] or panic. #[track_caller] pub fn expect_opaque_ty(&self) -> &OpaqueTy<'hir> { @@ -3168,7 +3167,6 @@ impl<'hir> Item<'hir> { (data, gen) } - /// A union definition, e.g., `union Foo<A, B> {x: A, y: B}`. /// Expect an [`ItemKind::Union`] or panic. #[track_caller] pub fn expect_union(&self) -> (&VariantData<'hir>, &'hir Generics<'hir>) { diff --git a/compiler/rustc_hir/src/tests.rs b/compiler/rustc_hir/src/tests.rs index d4791150947..c7ac01b3334 100644 --- a/compiler/rustc_hir/src/tests.rs +++ b/compiler/rustc_hir/src/tests.rs @@ -1,4 +1,5 @@ use crate::definitions::{DefKey, DefPathData, DisambiguatedDefPathData}; +use rustc_data_structures::stable_hasher::Hash64; use rustc_span::def_id::{DefPathHash, StableCrateId}; use rustc_span::edition::Edition; use rustc_span::{create_session_if_not_set_then, Symbol}; @@ -24,7 +25,7 @@ fn def_path_hash_depends_on_crate_id() { assert_ne!(h0.local_hash(), h1.local_hash()); fn mk_test_hash(stable_crate_id: StableCrateId) -> DefPathHash { - let parent_hash = DefPathHash::new(stable_crate_id, 0); + let parent_hash = DefPathHash::new(stable_crate_id, Hash64::ZERO); let key = DefKey { parent: None, diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs index 8d1156c1771..7eb12d380a7 100644 --- a/compiler/rustc_hir_analysis/src/astconv/mod.rs +++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs @@ -2061,7 +2061,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { err.note("enum variants can't have type parameters"); let type_name = tcx.item_name(adt_def.did()); let msg = format!( - "you might have meant to specity type parameters on enum \ + "you might have meant to specify type parameters on enum \ `{type_name}`" ); let Some(args) = assoc_segment.args else { return; }; diff --git a/compiler/rustc_hir_analysis/src/coherence/builtin.rs b/compiler/rustc_hir_analysis/src/coherence/builtin.rs index 0f40cca9427..611ce13b739 100644 --- a/compiler/rustc_hir_analysis/src/coherence/builtin.rs +++ b/compiler/rustc_hir_analysis/src/coherence/builtin.rs @@ -74,16 +74,15 @@ fn visit_implementation_of_copy(tcx: TyCtxt<'_>, impl_did: LocalDefId) { debug!("visit_implementation_of_copy: self_type={:?} (free)", self_type); - let span = match tcx.hir().expect_item(impl_did).kind { - ItemKind::Impl(hir::Impl { polarity: hir::ImplPolarity::Negative(_), .. }) => return, - ItemKind::Impl(impl_) => impl_.self_ty.span, - _ => bug!("expected Copy impl item"), + let span = match tcx.hir().expect_item(impl_did).expect_impl() { + hir::Impl { polarity: hir::ImplPolarity::Negative(_), .. } => return, + hir::Impl { self_ty, .. } => self_ty.span, }; let cause = traits::ObligationCause::misc(span, impl_did); match type_allowed_to_implement_copy(tcx, param_env, self_type, cause) { Ok(()) => {} - Err(CopyImplementationError::InfrigingFields(fields)) => { + Err(CopyImplementationError::InfringingFields(fields)) => { let mut err = struct_span_err!( tcx.sess, span, 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 e758fe95d9c..3cb217335bd 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -1333,7 +1333,7 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> { // We may fail to resolve higher-ranked lifetimes that are mentioned by APIT. // AST-based resolution does not care for impl-trait desugaring, which are the - // responibility of lowering. This may create a mismatch between the resolution + // responsibility of lowering. This may create a mismatch between the resolution // AST found (`region_def_id`) which points to HRTB, and what HIR allows. // ``` // fn foo(x: impl for<'a> Trait<'a, Assoc = impl Copy + 'a>) {} diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index 8fa3bcd68c3..507c24d540c 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -976,7 +976,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { /// Attempt to coerce an expression to a type, and return the /// adjusted type of the expression, if successful. /// Adjustments are only recorded if the coercion succeeded. - /// The expressions *must not* have any pre-existing adjustments. + /// The expressions *must not* have any preexisting adjustments. pub fn try_coerce( &self, expr: &hir::Expr<'_>, @@ -1340,7 +1340,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { } /// As an optimization, you can create a `CoerceMany` with a - /// pre-existing slice of expressions. In this case, you are + /// preexisting slice of expressions. In this case, you are /// expected to pass each element in the slice to `coerce(...)` in /// order. This is used with arrays in particular to avoid /// needlessly cloning the slice. diff --git a/compiler/rustc_hir_typeck/src/demand.rs b/compiler/rustc_hir_typeck/src/demand.rs index 13442c31649..525acfdaa81 100644 --- a/compiler/rustc_hir_typeck/src/demand.rs +++ b/compiler/rustc_hir_typeck/src/demand.rs @@ -17,7 +17,6 @@ use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::{self, Article, AssocItem, Ty, TypeAndMut, TypeFoldable}; use rustc_span::symbol::{sym, Symbol}; use rustc_span::{BytePos, Span, DUMMY_SP}; -use rustc_target::abi::FieldIdx; use rustc_trait_selection::infer::InferCtxtExt as _; use rustc_trait_selection::traits::ObligationCause; @@ -875,7 +874,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { variant.fields.len() == 1 }) .filter_map(|variant| { - let sole_field = &variant.fields[FieldIdx::from_u32(0)]; + let sole_field = &variant.single_field(); let field_is_local = sole_field.did.is_local(); let field_is_accessible = diff --git a/compiler/rustc_hir_typeck/src/errors.rs b/compiler/rustc_hir_typeck/src/errors.rs index 3eee2278dca..5be78416e61 100644 --- a/compiler/rustc_hir_typeck/src/errors.rs +++ b/compiler/rustc_hir_typeck/src/errors.rs @@ -108,7 +108,7 @@ pub enum ExpectedReturnTypeLabel<'tcx> { #[derive(Diagnostic)] #[diag(hir_typeck_missing_parentheses_in_range, code = "E0689")] -pub struct MissingParentheseInRange { +pub struct MissingParenthesesInRange { #[primary_span] #[label(hir_typeck_missing_parentheses_in_range)] pub span: Span, diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index ffc73d64fc0..0c0a7515d9c 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -38,6 +38,7 @@ use rustc_infer::infer; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; use rustc_infer::infer::DefineOpaqueTypes; use rustc_infer::infer::InferOk; +use rustc_infer::traits::query::NoSolution; use rustc_infer::traits::ObligationCause; use rustc_middle::middle::stability; use rustc_middle::ty::adjustment::{Adjust, Adjustment, AllowTwoPhase}; @@ -53,6 +54,8 @@ use rustc_span::symbol::{kw, sym, Ident, Symbol}; use rustc_target::abi::FieldIdx; use rustc_target::spec::abi::Abi::RustIntrinsic; use rustc_trait_selection::infer::InferCtxtExt; +use rustc_trait_selection::traits::error_reporting::TypeErrCtxtExt; +use rustc_trait_selection::traits::ObligationCtxt; use rustc_trait_selection::traits::{self, ObligationCauseCode}; impl<'a, 'tcx> FnCtxt<'a, 'tcx> { @@ -2800,6 +2803,17 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { element_ty } None => { + // Attempt to *shallowly* search for an impl which matches, + // but has nested obligations which are unsatisfied. + for (base_t, _) in self.autoderef(base.span, base_t).silence_errors() { + if let Some((_, index_ty, element_ty)) = + self.find_and_report_unsatisfied_index_impl(expr.hir_id, base, base_t) + { + self.demand_coerce(idx, idx_t, index_ty, None, AllowTwoPhase::No); + return element_ty; + } + } + let mut err = type_error_struct!( self.tcx.sess, expr.span, @@ -2843,6 +2857,82 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } + /// Try to match an implementation of `Index` against a self type, and report + /// the unsatisfied predicates that result from confirming this impl. + /// + /// Given an index expression, sometimes the `Self` type shallowly but does not + /// deeply satisfy an impl predicate. Instead of simply saying that the type + /// does not support being indexed, we want to point out exactly what nested + /// predicates cause this to be, so that the user can add them to fix their code. + fn find_and_report_unsatisfied_index_impl( + &self, + index_expr_hir_id: HirId, + base_expr: &hir::Expr<'_>, + base_ty: Ty<'tcx>, + ) -> Option<(ErrorGuaranteed, Ty<'tcx>, Ty<'tcx>)> { + let index_trait_def_id = self.tcx.lang_items().index_trait()?; + let index_trait_output_def_id = self.tcx.get_diagnostic_item(sym::IndexOutput)?; + + let mut relevant_impls = vec![]; + self.tcx.for_each_relevant_impl(index_trait_def_id, base_ty, |impl_def_id| { + relevant_impls.push(impl_def_id); + }); + let [impl_def_id] = relevant_impls[..] else { + // Only report unsatisfied impl predicates if there's one impl + return None; + }; + + self.commit_if_ok(|_| { + let ocx = ObligationCtxt::new_in_snapshot(self); + let impl_substs = self.fresh_substs_for_item(base_expr.span, impl_def_id); + let impl_trait_ref = + self.tcx.impl_trait_ref(impl_def_id).unwrap().subst(self.tcx, impl_substs); + let cause = self.misc(base_expr.span); + + // Match the impl self type against the base ty. If this fails, + // we just skip this impl, since it's not particularly useful. + let impl_trait_ref = ocx.normalize(&cause, self.param_env, impl_trait_ref); + ocx.eq(&cause, self.param_env, impl_trait_ref.self_ty(), base_ty)?; + + // Register the impl's predicates. One of these predicates + // must be unsatisfied, or else we wouldn't have gotten here + // in the first place. + ocx.register_obligations(traits::predicates_for_generics( + |idx, span| { + traits::ObligationCause::new( + base_expr.span, + self.body_id, + if span.is_dummy() { + traits::ExprItemObligation(impl_def_id, index_expr_hir_id, idx) + } else { + traits::ExprBindingObligation(impl_def_id, span, index_expr_hir_id, idx) + }, + ) + }, + self.param_env, + self.tcx.predicates_of(impl_def_id).instantiate(self.tcx, impl_substs), + )); + + // Normalize the output type, which we can use later on as the + // return type of the index expression... + let element_ty = ocx.normalize( + &cause, + self.param_env, + self.tcx.mk_projection(index_trait_output_def_id, impl_trait_ref.substs), + ); + + let errors = ocx.select_where_possible(); + // There should be at least one error reported. If not, we + // will still delay a span bug in `report_fulfillment_errors`. + Ok::<_, NoSolution>(( + self.err_ctxt().report_fulfillment_errors(&errors), + impl_trait_ref.substs.type_at(1), + element_ty, + )) + }) + .ok() + } + fn point_at_index_if_possible( &self, errors: &mut Vec<traits::FulfillmentError<'tcx>>, diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index f736f7a9620..13a869caa8f 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -827,7 +827,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } QPath::TypeRelative(ref qself, ref segment) => { // Don't use `self.to_ty`, since this will register a WF obligation. - // If we're trying to call a non-existent method on a trait + // If we're trying to call a nonexistent method on a trait // (e.g. `MyTrait::missing_method`), then resolution will // give us a `QPath::TypeRelative` with a trait object as // `qself`. In that case, we want to avoid registering a WF obligation 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 c3e5f9cb745..56c94505727 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 @@ -330,7 +330,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { /// expression mentioned. /// /// `blame_specific_arg_if_possible` will find the most-specific expression anywhere inside - /// the provided function call expression, and mark it as responsible for the fullfillment + /// the provided function call expression, and mark it as responsible for the fulfillment /// error. fn blame_specific_arg_if_possible( &self, diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index e82821850d6..eef2b5009c8 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -794,7 +794,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return; }; - // get all where BoundPredicates here, because they are used in to cases below + // get all where BoundPredicates here, because they are used in two cases below let where_predicates = predicates .iter() .filter_map(|p| match p { diff --git a/compiler/rustc_hir_typeck/src/generator_interior/mod.rs b/compiler/rustc_hir_typeck/src/generator_interior/mod.rs index f3971080443..8feef332de8 100644 --- a/compiler/rustc_hir_typeck/src/generator_interior/mod.rs +++ b/compiler/rustc_hir_typeck/src/generator_interior/mod.rs @@ -650,7 +650,7 @@ fn check_must_not_suspend_ty<'tcx>( }, ) } - // If drop tracking is enabled, we want to look through references, since the referrent + // If drop tracking is enabled, we want to look through references, since the referent // may not be considered live across the await point. ty::Ref(_region, ty, _mutability) if fcx.sess().opts.unstable_opts.drop_tracking => { let descr_pre = &format!("{}reference{} to ", data.descr_pre, plural_suffix); diff --git a/compiler/rustc_hir_typeck/src/intrinsicck.rs b/compiler/rustc_hir_typeck/src/intrinsicck.rs index 106f5bcd755..0fdb29a5e48 100644 --- a/compiler/rustc_hir_typeck/src/intrinsicck.rs +++ b/compiler/rustc_hir_typeck/src/intrinsicck.rs @@ -4,7 +4,7 @@ use rustc_hir as hir; use rustc_index::vec::Idx; use rustc_middle::ty::layout::{LayoutError, SizeSkeleton}; use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt}; -use rustc_target::abi::{FieldIdx, Pointer, VariantIdx}; +use rustc_target::abi::{Pointer, VariantIdx}; use super::FnCtxt; @@ -28,7 +28,7 @@ fn unpack_option_like<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> Ty<'tcx> { } if def.variant(data_idx).fields.len() == 1 { - return def.variant(data_idx).fields[FieldIdx::from_u32(0)].ty(tcx, substs); + return def.variant(data_idx).single_field().ty(tcx, substs); } } diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index 900a6fa0d8d..db1f10f645f 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -1530,7 +1530,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ); if pick.is_ok() { let range_span = parent_expr.span.with_hi(expr.span.hi()); - tcx.sess.emit_err(errors::MissingParentheseInRange { + tcx.sess.emit_err(errors::MissingParenthesesInRange { span, ty_str: ty_str.to_string(), method_name: item_name.as_str().to_string(), diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index af0bd26dec5..7160d1c67b2 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -1659,7 +1659,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if tcx.sess.teach(&err.get_code().unwrap()) { err.note( "This error indicates that a struct pattern attempted to \ - extract a non-existent field from a struct. Struct fields \ + extract a nonexistent field from a struct. Struct fields \ are identified by the name used before the colon : so struct \ patterns should resemble the declaration of the struct type \ being matched.\n\n\ diff --git a/compiler/rustc_hir_typeck/src/upvar.rs b/compiler/rustc_hir_typeck/src/upvar.rs index 41a6ad80b65..147b3e74d0f 100644 --- a/compiler/rustc_hir_typeck/src/upvar.rs +++ b/compiler/rustc_hir_typeck/src/upvar.rs @@ -223,7 +223,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let closure_hir_id = self.tcx.hir().local_def_id_to_hir_id(closure_def_id); if should_do_rust_2021_incompatible_closure_captures_analysis(self.tcx, closure_hir_id) { - self.perform_2229_migration_anaysis(closure_def_id, body_id, capture_clause, span); + self.perform_2229_migration_analysis(closure_def_id, body_id, capture_clause, span); } let after_feature_tys = self.final_upvar_tys(closure_def_id); @@ -731,7 +731,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { /// Perform the migration analysis for RFC 2229, and emit lint /// `disjoint_capture_drop_reorder` if needed. - fn perform_2229_migration_anaysis( + fn perform_2229_migration_analysis( &self, closure_def_id: LocalDefId, body_id: hir::BodyId, diff --git a/compiler/rustc_incremental/src/persist/dirty_clean.rs b/compiler/rustc_incremental/src/persist/dirty_clean.rs index 1d88dfd20c8..43274091cb8 100644 --- a/compiler/rustc_incremental/src/persist/dirty_clean.rs +++ b/compiler/rustc_incremental/src/persist/dirty_clean.rs @@ -139,7 +139,7 @@ pub fn check_dirty_clean_annotations(tcx: TyCtxt<'_>) { return; } - // can't add `#[rustc_clean]` etc without opting in to this feature + // can't add `#[rustc_clean]` etc without opting into this feature if !tcx.features().rustc_attrs { return; } diff --git a/compiler/rustc_incremental/src/persist/fs.rs b/compiler/rustc_incremental/src/persist/fs.rs index d6f83838a04..ec6d61f9e5f 100644 --- a/compiler/rustc_incremental/src/persist/fs.rs +++ b/compiler/rustc_incremental/src/persist/fs.rs @@ -601,7 +601,7 @@ fn string_to_timestamp(s: &str) -> Result<SystemTime, ()> { fn crate_path(sess: &Session, crate_name: Symbol, stable_crate_id: StableCrateId) -> PathBuf { let incr_dir = sess.opts.incremental.as_ref().unwrap().clone(); - let stable_crate_id = base_n::encode(stable_crate_id.to_u64() as u128, INT_ENCODE_BASE); + let stable_crate_id = base_n::encode(stable_crate_id.as_u64() as u128, INT_ENCODE_BASE); let crate_name = format!("{}-{}", crate_name, stable_crate_id); incr_dir.join(crate_name) diff --git a/compiler/rustc_infer/messages.ftl b/compiler/rustc_infer/messages.ftl index c8998ea91bf..fdc4ff0896f 100644 --- a/compiler/rustc_infer/messages.ftl +++ b/compiler/rustc_infer/messages.ftl @@ -80,7 +80,7 @@ infer_subtype = ...so that the {$requirement -> [no_else] `if` missing an `else` returns `()` [fn_main_correct_type] `main` function has the correct type [fn_start_correct_type] `#[start]` function has the correct type - [intristic_correct_type] intrinsic has the correct type + [intrinsic_correct_type] intrinsic has the correct type [method_correct_type] method receiver has the correct type *[other] types are compatible } @@ -93,7 +93,7 @@ infer_subtype_2 = ...so that {$requirement -> [no_else] `if` missing an `else` returns `()` [fn_main_correct_type] `main` function has the correct type [fn_start_correct_type] `#[start]` function has the correct type - [intristic_correct_type] intrinsic has the correct type + [intrinsic_correct_type] intrinsic has the correct type [method_correct_type] method receiver has the correct type *[other] types are compatible } @@ -341,8 +341,8 @@ infer_await_note = calling an async function returns a future infer_prlf_defined_with_sub = the lifetime `{$sub_symbol}` defined here... infer_prlf_defined_without_sub = the lifetime defined here... -infer_prlf_must_oultive_with_sup = ...must outlive the lifetime `{$sup_symbol}` defined here -infer_prlf_must_oultive_without_sup = ...must outlive the lifetime defined here +infer_prlf_must_outlive_with_sup = ...must outlive the lifetime `{$sup_symbol}` defined here +infer_prlf_must_outlive_without_sup = ...must outlive the lifetime defined here infer_prlf_known_limitation = this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) infer_opaque_captures_lifetime = hidden type for `{$opaque_ty}` captures lifetime that does not appear in bounds @@ -380,7 +380,7 @@ infer_oc_no_else = `if` may be missing an `else` clause infer_oc_no_diverge = `else` clause of `let...else` does not diverge infer_oc_fn_main_correct_type = `main` function has wrong type infer_oc_fn_start_correct_type = `#[start]` function has wrong type -infer_oc_intristic_correct_type = intrinsic has wrong type +infer_oc_intrinsic_correct_type = intrinsic has wrong type infer_oc_method_correct_type = mismatched `self` parameter type infer_oc_closure_selfref = closure/generator type that references itself infer_oc_cant_coerce = cannot coerce intrinsics to function pointers diff --git a/compiler/rustc_infer/src/errors/mod.rs b/compiler/rustc_infer/src/errors/mod.rs index 65b3dd1a892..b1e819e83f1 100644 --- a/compiler/rustc_infer/src/errors/mod.rs +++ b/compiler/rustc_infer/src/errors/mod.rs @@ -71,7 +71,7 @@ pub struct AmbiguousImpl<'a> { // Copy of `AnnotationRequired` for E0284 #[derive(Diagnostic)] #[diag(infer_type_annotations_needed, code = "E0284")] -pub struct AmbigousReturn<'a> { +pub struct AmbiguousReturn<'a> { #[primary_span] pub span: Span, pub source_kind: &'static str, @@ -1085,7 +1085,7 @@ pub enum PlaceholderRelationLfNotSatisfied { span: Span, #[note(infer_prlf_defined_with_sub)] sub_span: Span, - #[note(infer_prlf_must_oultive_with_sup)] + #[note(infer_prlf_must_outlive_with_sup)] sup_span: Span, sub_symbol: Symbol, sup_symbol: Symbol, @@ -1098,7 +1098,7 @@ pub enum PlaceholderRelationLfNotSatisfied { span: Span, #[note(infer_prlf_defined_with_sub)] sub_span: Span, - #[note(infer_prlf_must_oultive_without_sup)] + #[note(infer_prlf_must_outlive_without_sup)] sup_span: Span, sub_symbol: Symbol, #[note(infer_prlf_known_limitation)] @@ -1110,7 +1110,7 @@ pub enum PlaceholderRelationLfNotSatisfied { span: Span, #[note(infer_prlf_defined_without_sub)] sub_span: Span, - #[note(infer_prlf_must_oultive_with_sup)] + #[note(infer_prlf_must_outlive_with_sup)] sup_span: Span, sup_symbol: Symbol, #[note(infer_prlf_known_limitation)] @@ -1122,7 +1122,7 @@ pub enum PlaceholderRelationLfNotSatisfied { span: Span, #[note(infer_prlf_defined_without_sub)] sub_span: Span, - #[note(infer_prlf_must_oultive_without_sup)] + #[note(infer_prlf_must_outlive_without_sup)] sup_span: Span, #[note(infer_prlf_known_limitation)] note: (), @@ -1488,8 +1488,8 @@ pub enum ObligationCauseFailureCode { #[subdiagnostic] subdiags: Vec<TypeErrorAdditionalDiags>, }, - #[diag(infer_oc_intristic_correct_type, code = "E0308")] - IntristicCorrectType { + #[diag(infer_oc_intrinsic_correct_type, code = "E0308")] + IntrinsicCorrectType { #[primary_span] span: Span, #[subdiagnostic] diff --git a/compiler/rustc_infer/src/infer/canonical/query_response.rs b/compiler/rustc_infer/src/infer/canonical/query_response.rs index e98f68ae5a8..257d3625929 100644 --- a/compiler/rustc_infer/src/infer/canonical/query_response.rs +++ b/compiler/rustc_infer/src/infer/canonical/query_response.rs @@ -467,11 +467,11 @@ impl<'tcx> InferCtxt<'tcx> { } } GenericArgKind::Const(result_value) => { - if let ty::ConstKind::Bound(debrujin, b) = result_value.kind() { + if let ty::ConstKind::Bound(debruijn, b) = result_value.kind() { // ...in which case we would set `canonical_vars[0]` to `Some(const X)`. // We only allow a `ty::INNERMOST` index in substitutions. - assert_eq!(debrujin, ty::INNERMOST); + assert_eq!(debruijn, ty::INNERMOST); opt_values[b] = Some(*original_value); } } diff --git a/compiler/rustc_infer/src/infer/combine.rs b/compiler/rustc_infer/src/infer/combine.rs index fe45b5ebe61..9b670c76a18 100644 --- a/compiler/rustc_infer/src/infer/combine.rs +++ b/compiler/rustc_infer/src/infer/combine.rs @@ -832,7 +832,7 @@ pub trait ObligationEmittingRelation<'tcx>: TypeRelation<'tcx> { /// Register predicates that must hold in order for this relation to hold. Uses /// a default obligation cause, [`ObligationEmittingRelation::register_obligations`] should - /// be used if control over the obligaton causes is required. + /// be used if control over the obligation causes is required. fn register_predicates(&mut self, obligations: impl IntoIterator<Item: ToPredicate<'tcx>>); /// Register an obligation that both constants must be equal to each other. diff --git a/compiler/rustc_infer/src/infer/equate.rs b/compiler/rustc_infer/src/infer/equate.rs index fe4a2dd3800..f90f7674b55 100644 --- a/compiler/rustc_infer/src/infer/equate.rs +++ b/compiler/rustc_infer/src/infer/equate.rs @@ -178,7 +178,7 @@ impl<'tcx> TypeRelation<'tcx> for Equate<'_, '_, 'tcx> { where T: Relate<'tcx>, { - // A binder is equal to itself if it's structually equal to itself + // A binder is equal to itself if it's structurally equal to itself if a == b { return Ok(a); } diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index 992b07db154..f6a4ddd7855 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -2886,7 +2886,7 @@ impl<'tcx> ObligationCauseExt<'tcx> for ObligationCause<'tcx> { LetElse => ObligationCauseFailureCode::NoDiverge { span, subdiags }, MainFunctionType => ObligationCauseFailureCode::FnMainCorrectType { span }, StartFunctionType => ObligationCauseFailureCode::FnStartCorrectType { span, subdiags }, - IntrinsicType => ObligationCauseFailureCode::IntristicCorrectType { span, subdiags }, + IntrinsicType => ObligationCauseFailureCode::IntrinsicCorrectType { span, subdiags }, MethodReceiver => ObligationCauseFailureCode::MethodCorrectType { span, subdiags }, // In the case where we have no more specific thing to @@ -2943,7 +2943,7 @@ impl IntoDiagnosticArg for ObligationCauseAsDiagArg<'_> { IfExpressionWithNoElse => "no_else", MainFunctionType => "fn_main_correct_type", StartFunctionType => "fn_start_correct_type", - IntrinsicType => "intristic_correct_type", + IntrinsicType => "intrinsic_correct_type", MethodReceiver => "method_correct_type", _ => "other", } diff --git a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs index 75cc4e257bd..58e3159a4e2 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs @@ -1,5 +1,5 @@ use crate::errors::{ - AmbigousReturn, AmbiguousImpl, AnnotationRequired, InferenceBadError, NeedTypeInfoInGenerator, + AmbiguousImpl, AmbiguousReturn, AnnotationRequired, InferenceBadError, NeedTypeInfoInGenerator, SourceKindMultiSuggestion, SourceKindSubdiag, }; use crate::infer::error_reporting::TypeErrCtxt; @@ -368,7 +368,7 @@ impl<'tcx> InferCtxt<'tcx> { bad_label, } .into_diagnostic(&self.tcx.sess.parse_sess.span_diagnostic), - TypeAnnotationNeeded::E0284 => AmbigousReturn { + TypeAnnotationNeeded::E0284 => AmbiguousReturn { span, source_kind, source_name, @@ -573,7 +573,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { bad_label: None, } .into_diagnostic(&self.tcx.sess.parse_sess.span_diagnostic), - TypeAnnotationNeeded::E0284 => AmbigousReturn { + TypeAnnotationNeeded::E0284 => AmbiguousReturn { span, source_kind, source_name: &name, 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 b38bbdfe7bb..e410172c8c8 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 @@ -462,10 +462,7 @@ fn foo(&self) -> Self::T { String::new() } if let ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) = *proj_ty.self_ty().kind() { let opaque_local_def_id = def_id.as_local(); let opaque_hir_ty = if let Some(opaque_local_def_id) = opaque_local_def_id { - match &tcx.hir().expect_item(opaque_local_def_id).kind { - hir::ItemKind::OpaqueTy(opaque_hir_ty) => opaque_hir_ty, - _ => bug!("The HirId comes from a `ty::Opaque`"), - } + tcx.hir().expect_item(opaque_local_def_id).expect_opaque_ty() } else { return false; }; diff --git a/compiler/rustc_infer/src/infer/error_reporting/suggest.rs b/compiler/rustc_infer/src/infer/error_reporting/suggest.rs index 4dc5fc451dd..d885d040707 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/suggest.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/suggest.rs @@ -10,7 +10,6 @@ use rustc_middle::traits::{ use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::{self as ty, GenericArgKind, IsSuggestable, Ty, TypeVisitableExt}; use rustc_span::{sym, BytePos, Span}; -use rustc_target::abi::FieldIdx; use crate::errors::{ ConsiderAddingAwait, FnConsiderCasting, FnItemsAreDistinct, FnUniqTypes, @@ -114,7 +113,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { variant.fields.len() == 1 && variant.ctor_kind() == Some(CtorKind::Fn) }) .filter_map(|variant| { - let sole_field = &variant.fields[FieldIdx::from_u32(0)]; + let sole_field = &variant.single_field(); let sole_field_ty = sole_field.ty(self.tcx, substs); if self.same_type_modulo_infer(sole_field_ty, exp_found.found) { let variant_path = diff --git a/compiler/rustc_infer/src/infer/higher_ranked/mod.rs b/compiler/rustc_infer/src/infer/higher_ranked/mod.rs index a63cfbc919c..c304cd25c9c 100644 --- a/compiler/rustc_infer/src/infer/higher_ranked/mod.rs +++ b/compiler/rustc_infer/src/infer/higher_ranked/mod.rs @@ -42,7 +42,7 @@ impl<'a, 'tcx> CombineFields<'a, 'tcx> { // Next, we instantiate each bound region in the subtype // with a fresh region variable. These region variables -- - // but no other pre-existing region variables -- can name + // but no other preexisting region variables -- can name // the placeholders. let sub_prime = self.infcx.instantiate_binder_with_fresh_vars(span, HigherRankedType, sub); diff --git a/compiler/rustc_infer/src/infer/opaque_types.rs b/compiler/rustc_infer/src/infer/opaque_types.rs index 3a0a0494a7e..680465bdab6 100644 --- a/compiler/rustc_infer/src/infer/opaque_types.rs +++ b/compiler/rustc_infer/src/infer/opaque_types.rs @@ -392,12 +392,7 @@ impl<'tcx> InferCtxt<'tcx> { /// defining scope. #[instrument(skip(self), level = "trace", ret)] fn opaque_type_origin_unchecked(&self, def_id: LocalDefId) -> OpaqueTyOrigin { - match self.tcx.hir().expect_item(def_id).kind { - hir::ItemKind::OpaqueTy(hir::OpaqueTy { origin, .. }) => origin, - ref itemkind => { - bug!("weird opaque type: {:?}, {:#?}", def_id, itemkind) - } - } + self.tcx.hir().expect_item(def_id).expect_opaque_ty().origin } } diff --git a/compiler/rustc_infer/src/infer/sub.rs b/compiler/rustc_infer/src/infer/sub.rs index 0dd73a6e999..3766c250a9c 100644 --- a/compiler/rustc_infer/src/infer/sub.rs +++ b/compiler/rustc_infer/src/infer/sub.rs @@ -210,7 +210,7 @@ impl<'tcx> TypeRelation<'tcx> for Sub<'_, '_, 'tcx> { where T: Relate<'tcx>, { - // A binder is always a subtype of itself if it's structually equal to itself + // A binder is always a subtype of itself if it's structurally equal to itself if a == b { return Ok(a); } diff --git a/compiler/rustc_infer/src/traits/project.rs b/compiler/rustc_infer/src/traits/project.rs index ac455055b43..8d0af738dd1 100644 --- a/compiler/rustc_infer/src/traits/project.rs +++ b/compiler/rustc_infer/src/traits/project.rs @@ -103,7 +103,7 @@ pub enum ProjectionCacheEntry<'tcx> { /// if this field is set. Evaluation only /// cares about the final result, so we don't /// care about any region constraint side-effects - /// produced by evaluating the sub-boligations. + /// produced by evaluating the sub-obligations. /// /// Additionally, we will clear out the sub-obligations /// entirely if we ever evaluate the cache entry (along diff --git a/compiler/rustc_lint/messages.ftl b/compiler/rustc_lint/messages.ftl index db15b176df0..3d1b8f8ed95 100644 --- a/compiler/rustc_lint/messages.ftl +++ b/compiler/rustc_lint/messages.ftl @@ -445,7 +445,7 @@ lint_builtin_incomplete_features = the feature `{$name}` is incomplete and may n .help = consider using `min_{$name}` instead, which is more stable and complete lint_builtin_unpermitted_type_init_zeroed = the type `{$ty}` does not permit zero-initialization -lint_builtin_unpermitted_type_init_unint = the type `{$ty}` does not permit being left uninitialized +lint_builtin_unpermitted_type_init_uninit = the type `{$ty}` does not permit being left uninitialized lint_builtin_unpermitted_type_init_label = this code causes undefined behavior when executed lint_builtin_unpermitted_type_init_label_suggestion = help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index 6b387df785e..55bef6d3b3d 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -22,7 +22,7 @@ use crate::fluent_generated as fluent; use crate::{ - errors::BuiltinEllpisisInclusiveRangePatterns, + errors::BuiltinEllipsisInclusiveRangePatterns, lints::{ BuiltinAnonymousParams, BuiltinBoxPointers, BuiltinClashingExtern, BuiltinClashingExternSub, BuiltinConstNoMangle, BuiltinDeprecatedAttrLink, @@ -1711,13 +1711,13 @@ impl EarlyLintPass for EllipsisInclusiveRangePatterns { } } - let (parenthesise, endpoints) = match &pat.kind { + let (parentheses, endpoints) = match &pat.kind { PatKind::Ref(subpat, _) => (true, matches_ellipsis_pat(&subpat)), _ => (false, matches_ellipsis_pat(pat)), }; if let Some((start, end, join)) = endpoints { - if parenthesise { + if parentheses { self.node_id = Some(pat.id); let end = expr_to_string(&end); let replace = match start { @@ -1725,7 +1725,7 @@ impl EarlyLintPass for EllipsisInclusiveRangePatterns { None => format!("&(..={})", end), }; if join.edition() >= Edition::Edition2021 { - cx.sess().emit_err(BuiltinEllpisisInclusiveRangePatterns { + cx.sess().emit_err(BuiltinEllipsisInclusiveRangePatterns { span: pat.span, suggestion: pat.span, replace, @@ -1743,7 +1743,7 @@ impl EarlyLintPass for EllipsisInclusiveRangePatterns { } else { let replace = "..="; if join.edition() >= Edition::Edition2021 { - cx.sess().emit_err(BuiltinEllpisisInclusiveRangePatterns { + cx.sess().emit_err(BuiltinEllipsisInclusiveRangePatterns { span: pat.span, suggestion: join, replace: replace.to_string(), @@ -2560,7 +2560,7 @@ impl<'tcx> LateLintPass<'tcx> for InvalidValue { .subst(cx.tcx, substs) .apply_any_module(cx.tcx, cx.param_env) { - // Entirely skip uninhbaited variants. + // Entirely skip uninhabited variants. Some(false) => return None, // Forward the others, but remember which ones are definitely inhabited. Some(true) => true, @@ -2628,7 +2628,7 @@ impl<'tcx> LateLintPass<'tcx> for InvalidValue { if let Some(err) = with_no_trimmed_paths!(ty_find_init_error(cx, conjured_ty, init)) { let msg = match init { InitKind::Zeroed => fluent::lint_builtin_unpermitted_type_init_zeroed, - InitKind::Uninit => fluent::lint_builtin_unpermitted_type_init_unint, + InitKind::Uninit => fluent::lint_builtin_unpermitted_type_init_uninit, }; let sub = BuiltinUnpermittedTypeInitSub { err }; cx.emit_spanned_lint( diff --git a/compiler/rustc_lint/src/errors.rs b/compiler/rustc_lint/src/errors.rs index 9af5284df1e..bbae3d368f4 100644 --- a/compiler/rustc_lint/src/errors.rs +++ b/compiler/rustc_lint/src/errors.rs @@ -81,7 +81,7 @@ pub struct UnknownToolInScopedLint { #[derive(Diagnostic)] #[diag(lint_builtin_ellipsis_inclusive_range_patterns, code = "E0783")] -pub struct BuiltinEllpisisInclusiveRangePatterns { +pub struct BuiltinEllipsisInclusiveRangePatterns { #[primary_span] pub span: Span, #[suggestion(style = "short", code = "{replace}", applicability = "machine-applicable")] diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs index 80a64e59c0f..d677d51881e 100644 --- a/compiler/rustc_lint/src/unused.rs +++ b/compiler/rustc_lint/src/unused.rs @@ -569,36 +569,50 @@ trait UnusedDelimLint { } } - // Prevent false-positives in cases like `fn x() -> u8 { ({ 0 } + 1) }` - let lhs_needs_parens = { + // Check if LHS needs parens to prevent false-positives in cases like `fn x() -> u8 { ({ 0 } + 1) }`. + { let mut innermost = inner; loop { innermost = match &innermost.kind { - ExprKind::Binary(_, lhs, _rhs) => lhs, + ExprKind::Binary(_op, lhs, _rhs) => lhs, ExprKind::Call(fn_, _params) => fn_, ExprKind::Cast(expr, _ty) => expr, ExprKind::Type(expr, _ty) => expr, ExprKind::Index(base, _subscript) => base, - _ => break false, + _ => break, }; if !classify::expr_requires_semi_to_be_stmt(innermost) { - break true; + return true; } } - }; + } - lhs_needs_parens - || (followed_by_block - && match &inner.kind { - ExprKind::Ret(_) - | ExprKind::Break(..) - | ExprKind::Yield(..) - | ExprKind::Yeet(..) => true, - ExprKind::Range(_lhs, Some(rhs), _limits) => { - matches!(rhs.kind, ExprKind::Block(..)) - } - _ => parser::contains_exterior_struct_lit(&inner), - }) + // Check if RHS needs parens to prevent false-positives in cases like `if (() == return) {}`. + if !followed_by_block { + return false; + } + let mut innermost = inner; + loop { + innermost = match &innermost.kind { + ExprKind::Unary(_op, expr) => expr, + ExprKind::Binary(_op, _lhs, rhs) => rhs, + ExprKind::AssignOp(_op, _lhs, rhs) => rhs, + ExprKind::Assign(_lhs, rhs, _span) => rhs, + + ExprKind::Ret(_) | ExprKind::Yield(..) | ExprKind::Yeet(..) => return true, + + ExprKind::Break(_label, None) => return false, + ExprKind::Break(_label, Some(break_expr)) => { + return matches!(break_expr.kind, ExprKind::Block(..)); + } + + ExprKind::Range(_lhs, Some(rhs), _limits) => { + return matches!(rhs.kind, ExprKind::Block(..)); + } + + _ => return parser::contains_exterior_struct_lit(&inner), + } + } } fn emit_unused_delims_expr( diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index 9d6ab0b75df..b223b8c137a 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -1021,7 +1021,7 @@ declare_lint! { declare_lint! { /// The `invalid_alignment` lint detects dereferences of misaligned pointers during - /// constant evluation. + /// constant evaluation. /// /// ### Example /// @@ -1854,7 +1854,7 @@ declare_lint! { /// When new methods are added to traits in the standard library, they are /// usually added in an "unstable" form which is only available on the /// [nightly channel] with a [`feature` attribute]. If there is any - /// pre-existing code which extends a trait to have a method with the same + /// preexisting code which extends a trait to have a method with the same /// name, then the names will collide. In the future, when the method is /// stabilized, this will cause an error due to the ambiguity. This lint /// is an early-warning to let you know that there may be a collision in diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp index 08e38b0c9d5..c9acbab253e 100644 --- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp @@ -811,7 +811,7 @@ LLVMRustOptimize( ModulePassManager MPM; bool NeedThinLTOBufferPasses = UseThinLTOBuffers; if (!NoPrepopulatePasses) { - // The pre-link pipelines don't support O0 and require using budilO0DefaultPipeline() instead. + // The pre-link pipelines don't support O0 and require using buildO0DefaultPipeline() instead. // At the same time, the LTO pipelines do support O0 and using them is required. bool IsLTO = OptStage == LLVMRustOptStage::ThinLTO || OptStage == LLVMRustOptStage::FatLTO; if (OptLevel == OptimizationLevel::O0 && !IsLTO) { diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index 2930ce75028..951fb303e3c 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -117,7 +117,7 @@ pub(crate) struct CrateMetadata { /// Additional data used for decoding `HygieneData` (e.g. `SyntaxContext` /// and `ExpnId`). - /// Note that we store a `HygieneDecodeContext` for each `CrateMetadat`. This is + /// Note that we store a `HygieneDecodeContext` for each `CrateMetadata`. This is /// because `SyntaxContext` ids are not globally unique, so we need /// to track which ids we've decoded on a per-crate basis. hygiene_context: HygieneDecodeContext, @@ -627,7 +627,7 @@ impl<'a, 'tcx> Decodable<DecodeContext<'a, 'tcx>> for Symbol { let pos = d.read_usize(); let old_pos = d.opaque.position(); - // move to str ofset and read + // move to str offset and read d.opaque.set_position(pos); let s = d.read_str(); let sym = Symbol::intern(s); @@ -998,9 +998,8 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { let ident = self.item_ident(id, sess); let res = Res::Def(self.def_kind(id), self.local_def_id(id)); let vis = self.get_visibility(id); - let span = self.get_span(id, sess); - ModChild { ident, res, vis, span, reexport_chain: Default::default() } + ModChild { ident, res, vis, reexport_chain: Default::default() } } /// Iterates over all named children of the given module, diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index 657b903e0a8..d6500cd93a7 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -7,7 +7,7 @@ use rustc_ast::Attribute; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::fx::{FxHashMap, FxIndexSet}; use rustc_data_structures::memmap::{Mmap, MmapMut}; -use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{Hash128, HashStable, StableHasher}; use rustc_data_structures::sync::{join, par_iter, Lrc, ParallelIterator}; use rustc_data_structures::temp_dir::MaybeTempDir; use rustc_hir as hir; @@ -531,7 +531,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { adapted.name_hash = { let mut hasher: StableHasher = StableHasher::new(); adapted.name.hash(&mut hasher); - hasher.finish::<u128>() + hasher.finish::<Hash128>() }; Lrc::new(adapted) } else { @@ -823,6 +823,7 @@ fn should_encode_span(def_kind: DefKind) -> bool { | DefKind::TraitAlias | DefKind::AssocTy | DefKind::TyParam + | DefKind::ConstParam | DefKind::Fn | DefKind::Const | DefKind::Static(_) @@ -830,6 +831,8 @@ fn should_encode_span(def_kind: DefKind) -> bool { | DefKind::AssocFn | DefKind::AssocConst | DefKind::Macro(_) + | DefKind::ExternCrate + | DefKind::Use | DefKind::AnonConst | DefKind::InlineConst | DefKind::OpaqueTy @@ -837,10 +840,7 @@ fn should_encode_span(def_kind: DefKind) -> bool { | DefKind::Impl { .. } | DefKind::Closure | DefKind::Generator => true, - DefKind::ConstParam - | DefKind::ExternCrate - | DefKind::Use - | DefKind::ForeignMod + DefKind::ForeignMod | DefKind::ImplTraitPlaceholder | DefKind::LifetimeParam | DefKind::GlobalAsm => false, @@ -1469,8 +1469,8 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { match impl_item.kind { ty::AssocKind::Fn => { - let ast_item = self.tcx.hir().expect_impl_item(def_id.expect_local()); - let hir::ImplItemKind::Fn(ref sig, body) = ast_item.kind else { bug!() }; + let (sig, body) = + self.tcx.hir().expect_impl_item(def_id.expect_local()).expect_fn(); self.tables.asyncness.set_some(def_id.index, sig.header.asyncness); record_array!(self.tables.fn_arg_names[def_id] <- self.tcx.hir().body_param_names(body)); // Can be inside `impl const Trait`, so using sig.header.constness is not reliable diff --git a/compiler/rustc_middle/src/dep_graph/dep_node.rs b/compiler/rustc_middle/src/dep_graph/dep_node.rs index 865bb70afb5..82e396a9dd3 100644 --- a/compiler/rustc_middle/src/dep_graph/dep_node.rs +++ b/compiler/rustc_middle/src/dep_graph/dep_node.rs @@ -357,7 +357,7 @@ impl<'tcx> DepNodeParams<TyCtxt<'tcx>> for HirId { Fingerprint::new( // `owner` is local, so is completely defined by the local hash def_path_hash.local_hash(), - local_id.as_u32().into(), + local_id.as_u32() as u64, ) } @@ -370,7 +370,7 @@ impl<'tcx> DepNodeParams<TyCtxt<'tcx>> for HirId { #[inline(always)] fn recover(tcx: TyCtxt<'tcx>, dep_node: &DepNode) -> Option<Self> { if tcx.fingerprint_style(dep_node.kind) == FingerprintStyle::HirId { - let (local_hash, local_id) = Fingerprint::from(dep_node.hash).as_value(); + let (local_hash, local_id) = Fingerprint::from(dep_node.hash).split(); let def_path_hash = DefPathHash::new(tcx.sess.local_stable_crate_id(), local_hash); let def_id = tcx .def_path_hash_to_def_id(def_path_hash, &mut || { @@ -378,6 +378,7 @@ impl<'tcx> DepNodeParams<TyCtxt<'tcx>> for HirId { }) .expect_local(); let local_id = local_id + .as_u64() .try_into() .unwrap_or_else(|_| panic!("local id should be u32, found {:?}", local_id)); Some(HirId { owner: OwnerId { def_id }, local_id: ItemLocalId::from_u32(local_id) }) diff --git a/compiler/rustc_middle/src/infer/canonical.rs b/compiler/rustc_middle/src/infer/canonical.rs index e63121475a1..c4e41e00520 100644 --- a/compiler/rustc_middle/src/infer/canonical.rs +++ b/compiler/rustc_middle/src/infer/canonical.rs @@ -392,10 +392,8 @@ pub type QueryOutlivesConstraint<'tcx> = (ty::OutlivesPredicate<GenericArg<'tcx>, Region<'tcx>>, ConstraintCategory<'tcx>); TrivialTypeTraversalAndLiftImpls! { - for <'tcx> { - crate::infer::canonical::Certainty, - crate::infer::canonical::CanonicalTyVarKind, - } + crate::infer::canonical::Certainty, + crate::infer::canonical::CanonicalTyVarKind, } impl<'tcx> CanonicalVarValues<'tcx> { diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs index 1ddc08eac7d..2fa769d3abb 100644 --- a/compiler/rustc_middle/src/lib.rs +++ b/compiler/rustc_middle/src/lib.rs @@ -59,6 +59,7 @@ #![feature(result_option_inspect)] #![feature(const_option)] #![feature(trait_alias)] +#![feature(ptr_alignment_type)] #![recursion_limit = "512"] #![allow(rustc::potential_query_instability)] diff --git a/compiler/rustc_middle/src/macros.rs b/compiler/rustc_middle/src/macros.rs index 89014f62d4d..cd1c6c330bc 100644 --- a/compiler/rustc_middle/src/macros.rs +++ b/compiler/rustc_middle/src/macros.rs @@ -43,34 +43,26 @@ macro_rules! span_bug { #[macro_export] macro_rules! CloneLiftImpls { - (for <$tcx:lifetime> { $($ty:ty,)+ }) => { + ($($ty:ty,)+) => { $( - impl<$tcx> $crate::ty::Lift<$tcx> for $ty { + impl<'tcx> $crate::ty::Lift<'tcx> for $ty { type Lifted = Self; - fn lift_to_tcx(self, _: $crate::ty::TyCtxt<$tcx>) -> Option<Self> { + fn lift_to_tcx(self, _: $crate::ty::TyCtxt<'tcx>) -> Option<Self> { Some(self) } } )+ }; - - ($($ty:ty,)+) => { - CloneLiftImpls! { - for <'tcx> { - $($ty,)+ - } - } - }; } /// Used for types that are `Copy` and which **do not care arena /// allocated data** (i.e., don't need to be folded). #[macro_export] macro_rules! TrivialTypeTraversalImpls { - (for <$tcx:lifetime> { $($ty:ty,)+ }) => { + ($($ty:ty,)+) => { $( - impl<$tcx> $crate::ty::fold::TypeFoldable<$crate::ty::TyCtxt<$tcx>> for $ty { - fn try_fold_with<F: $crate::ty::fold::FallibleTypeFolder<$crate::ty::TyCtxt<$tcx>>>( + impl<'tcx> $crate::ty::fold::TypeFoldable<$crate::ty::TyCtxt<'tcx>> for $ty { + fn try_fold_with<F: $crate::ty::fold::FallibleTypeFolder<$crate::ty::TyCtxt<'tcx>>>( self, _: &mut F, ) -> ::std::result::Result<Self, F::Error> { @@ -78,7 +70,7 @@ macro_rules! TrivialTypeTraversalImpls { } #[inline] - fn fold_with<F: $crate::ty::fold::TypeFolder<$crate::ty::TyCtxt<$tcx>>>( + fn fold_with<F: $crate::ty::fold::TypeFolder<$crate::ty::TyCtxt<'tcx>>>( self, _: &mut F, ) -> Self { @@ -86,9 +78,9 @@ macro_rules! TrivialTypeTraversalImpls { } } - impl<$tcx> $crate::ty::visit::TypeVisitable<$crate::ty::TyCtxt<$tcx>> for $ty { + impl<'tcx> $crate::ty::visit::TypeVisitable<$crate::ty::TyCtxt<'tcx>> for $ty { #[inline] - fn visit_with<F: $crate::ty::visit::TypeVisitor<$crate::ty::TyCtxt<$tcx>>>( + fn visit_with<F: $crate::ty::visit::TypeVisitor<$crate::ty::TyCtxt<'tcx>>>( &self, _: &mut F) -> ::std::ops::ControlFlow<F::BreakTy> @@ -98,14 +90,6 @@ macro_rules! TrivialTypeTraversalImpls { } )+ }; - - ($($ty:ty,)+) => { - TrivialTypeTraversalImpls! { - for<'tcx> { - $($ty,)+ - } - } - }; } #[macro_export] diff --git a/compiler/rustc_middle/src/metadata.rs b/compiler/rustc_middle/src/metadata.rs index f3170e0ec0e..674402cb4bf 100644 --- a/compiler/rustc_middle/src/metadata.rs +++ b/compiler/rustc_middle/src/metadata.rs @@ -4,7 +4,6 @@ use rustc_hir::def::Res; use rustc_macros::HashStable; use rustc_span::def_id::DefId; use rustc_span::symbol::Ident; -use rustc_span::Span; use smallvec::SmallVec; /// A simplified version of `ImportKind` from resolve. @@ -41,8 +40,6 @@ pub struct ModChild { pub res: Res<!>, /// Visibility of the item. pub vis: ty::Visibility<DefId>, - /// Span of the item. - pub span: Span, /// Reexport chain linking this module child to its original reexported item. /// Empty if the module child is a proper item. pub reexport_chain: SmallVec<[Reexport; 2]>, diff --git a/compiler/rustc_middle/src/middle/exported_symbols.rs b/compiler/rustc_middle/src/middle/exported_symbols.rs index c0c0fd07b6e..9041da9a060 100644 --- a/compiler/rustc_middle/src/middle/exported_symbols.rs +++ b/compiler/rustc_middle/src/middle/exported_symbols.rs @@ -72,6 +72,6 @@ pub fn metadata_symbol_name(tcx: TyCtxt<'_>) -> String { format!( "rust_metadata_{}_{:08x}", tcx.crate_name(LOCAL_CRATE), - tcx.sess.local_stable_crate_id().to_u64(), + tcx.sess.local_stable_crate_id(), ) } diff --git a/compiler/rustc_middle/src/mir/interpret/allocation/init_mask.rs b/compiler/rustc_middle/src/mir/interpret/allocation/init_mask.rs index dcb56a1755e..d4dd56a42c1 100644 --- a/compiler/rustc_middle/src/mir/interpret/allocation/init_mask.rs +++ b/compiler/rustc_middle/src/mir/interpret/allocation/init_mask.rs @@ -5,7 +5,9 @@ use std::hash; use std::iter; use std::ops::Range; +use rustc_serialize::{Decodable, Encodable}; use rustc_target::abi::Size; +use rustc_type_ir::{TyDecoder, TyEncoder}; use super::AllocRange; @@ -182,11 +184,39 @@ impl InitMask { /// The actual materialized blocks of the bitmask, when we can't keep the `InitMask` lazy. // Note: for performance reasons when interning, some of the fields can be partially // hashed. (see the `Hash` impl below for more details), so the impl is not derived. -#[derive(Clone, Debug, Eq, PartialEq, TyEncodable, TyDecodable, HashStable)] +#[derive(Clone, Debug, Eq, PartialEq, HashStable)] struct InitMaskMaterialized { blocks: Vec<Block>, } +// `Block` is a `u64`, but it is a bitmask not a numeric value. If we were to just derive +// Encodable and Decodable we would apply varint encoding to the bitmasks, which is slower +// and also produces more output when the high bits of each `u64` are occupied. +// Note: There is probably a remaining optimization for masks that do not use an entire +// `Block`. +impl<E: TyEncoder> Encodable<E> for InitMaskMaterialized { + fn encode(&self, encoder: &mut E) { + encoder.emit_usize(self.blocks.len()); + for block in &self.blocks { + encoder.emit_raw_bytes(&block.to_le_bytes()); + } + } +} + +// This implementation is deliberately not derived, see the matching `Encodable` impl. +impl<D: TyDecoder> Decodable<D> for InitMaskMaterialized { + fn decode(decoder: &mut D) -> Self { + let num_blocks = decoder.read_usize(); + let mut blocks = Vec::with_capacity(num_blocks); + for _ in 0..num_blocks { + let bytes = decoder.read_raw_bytes(8); + let block = u64::from_le_bytes(bytes.try_into().unwrap()); + blocks.push(block); + } + InitMaskMaterialized { blocks } + } +} + // Const allocations are only hashed for interning. However, they can be large, making the hashing // expensive especially since it uses `FxHash`: it's better suited to short keys, not potentially // big buffers like the allocation's init mask. We can partially hash some fields when they're diff --git a/compiler/rustc_middle/src/mir/interpret/pointer.rs b/compiler/rustc_middle/src/mir/interpret/pointer.rs index 60927eed85d..65d04919357 100644 --- a/compiler/rustc_middle/src/mir/interpret/pointer.rs +++ b/compiler/rustc_middle/src/mir/interpret/pointer.rs @@ -102,7 +102,7 @@ impl<T: HasDataLayout> PointerArithmetic for T {} /// This trait abstracts over the kind of provenance that is associated with a `Pointer`. It is /// mostly opaque; the `Machine` trait extends it with some more operations that also have access to /// some global state. -/// The `Debug` rendering is used to distplay bare provenance, and for the default impl of `fmt`. +/// The `Debug` rendering is used to display bare provenance, and for the default impl of `fmt`. pub trait Provenance: Copy + fmt::Debug { /// Says whether the `offset` field of `Pointer`s with this provenance is the actual physical address. /// - If `false`, the offset *must* be relative. This means the bytes representing a pointer are diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 2ea8602af12..f985aae9a22 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -714,9 +714,7 @@ pub enum BindingForm<'tcx> { } TrivialTypeTraversalAndLiftImpls! { - for<'tcx> { - BindingForm<'tcx>, - } + BindingForm<'tcx>, } mod binding_form_impl { diff --git a/compiler/rustc_middle/src/mir/mono.rs b/compiler/rustc_middle/src/mir/mono.rs index f592f1515c1..a9468a90b53 100644 --- a/compiler/rustc_middle/src/mir/mono.rs +++ b/compiler/rustc_middle/src/mir/mono.rs @@ -4,7 +4,7 @@ use rustc_attr::InlineAttr; use rustc_data_structures::base_n; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::fx::FxHashMap; -use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{Hash128, HashStable, StableHasher}; use rustc_hir::def_id::{CrateNum, DefId, LOCAL_CRATE}; use rustc_hir::ItemId; use rustc_index::vec::Idx; @@ -313,8 +313,8 @@ impl<'tcx> CodegenUnit<'tcx> { // avoid collisions and is still reasonably short for filenames. let mut hasher = StableHasher::new(); human_readable_name.hash(&mut hasher); - let hash: u128 = hasher.finish(); - let hash = hash & ((1u128 << 80) - 1); + let hash: Hash128 = hasher.finish(); + let hash = hash.as_u128() & ((1u128 << 80) - 1); base_n::encode(hash, base_n::CASE_INSENSITIVE) } @@ -505,22 +505,13 @@ impl<'tcx> CodegenUnitNameBuilder<'tcx> { // instantiating stuff for upstream crates. let local_crate_id = if cnum != LOCAL_CRATE { let local_stable_crate_id = tcx.sess.local_stable_crate_id(); - format!( - "-in-{}.{:08x}", - tcx.crate_name(LOCAL_CRATE), - local_stable_crate_id.to_u64() as u32, - ) + format!("-in-{}.{:08x}", tcx.crate_name(LOCAL_CRATE), local_stable_crate_id) } else { String::new() }; let stable_crate_id = tcx.sess.local_stable_crate_id(); - format!( - "{}.{:08x}{}", - tcx.crate_name(cnum), - stable_crate_id.to_u64() as u32, - local_crate_id, - ) + format!("{}.{:08x}{}", tcx.crate_name(cnum), stable_crate_id, local_crate_id) }); write!(cgu_name, "{}", crate_prefix).unwrap(); diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index 135889d0da8..c38a347809f 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -251,7 +251,7 @@ pub enum StatementKind<'tcx> { /// **Needs clarification**: The implication of the above idea would be that assignment implies /// that the resulting value is initialized. I believe we could commit to this separately from /// committing to whatever part of the memory model we would need to decide on to make the above - /// paragragh precise. Do we want to? + /// paragraph precise. Do we want to? /// /// Assignments in which the types of the place and rvalue differ are not well-formed. /// @@ -997,7 +997,7 @@ pub type PlaceElem<'tcx> = ProjectionElem<Local, Ty<'tcx>>; /// This is what is implemented in miri today. Are these the semantics we want for MIR? Is this /// something we can even decide without knowing more about Rust's memory model? /// -/// **Needs clarifiation:** Is loading a place that has its variant index set well-formed? Miri +/// **Needs clarification:** Is loading a place that has its variant index set well-formed? Miri /// currently implements it, but it seems like this may be something to check against in the /// validator. #[derive(Clone, PartialEq, TyEncodable, TyDecodable, Hash, HashStable, TypeFoldable, TypeVisitable)] diff --git a/compiler/rustc_middle/src/mir/type_foldable.rs b/compiler/rustc_middle/src/mir/type_foldable.rs index 9881583214e..ace856b9f95 100644 --- a/compiler/rustc_middle/src/mir/type_foldable.rs +++ b/compiler/rustc_middle/src/mir/type_foldable.rs @@ -25,9 +25,7 @@ TrivialTypeTraversalAndLiftImpls! { } TrivialTypeTraversalImpls! { - for <'tcx> { - ConstValue<'tcx>, - } + ConstValue<'tcx>, } impl<'tcx> TypeFoldable<TyCtxt<'tcx>> for &'tcx [InlineAsmTemplatePiece] { diff --git a/compiler/rustc_middle/src/ty/abstract_const.rs b/compiler/rustc_middle/src/ty/abstract_const.rs index f889ce82706..223b763e34b 100644 --- a/compiler/rustc_middle/src/ty/abstract_const.rs +++ b/compiler/rustc_middle/src/ty/abstract_const.rs @@ -1,4 +1,4 @@ -//! A subset of a mir body used for const evaluatability checking. +//! A subset of a mir body used for const evaluability checking. use crate::ty::{ self, Const, EarlyBinder, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperFoldable, TypeVisitableExt, diff --git a/compiler/rustc_middle/src/ty/consts/int.rs b/compiler/rustc_middle/src/ty/consts/int.rs index c0e557d480d..d1dbc531edf 100644 --- a/compiler/rustc_middle/src/ty/consts/int.rs +++ b/compiler/rustc_middle/src/ty/consts/int.rs @@ -141,14 +141,18 @@ impl<CTX> crate::ty::HashStable<CTX> for ScalarInt { impl<S: Encoder> Encodable<S> for ScalarInt { fn encode(&self, s: &mut S) { - s.emit_u128(self.data); - s.emit_u8(self.size.get()); + let size = self.size.get(); + s.emit_u8(size); + s.emit_raw_bytes(&self.data.to_le_bytes()[..size as usize]); } } impl<D: Decoder> Decodable<D> for ScalarInt { fn decode(d: &mut D) -> ScalarInt { - ScalarInt { data: d.read_u128(), size: NonZeroU8::new(d.read_u8()).unwrap() } + let mut data = [0u8; 16]; + let size = d.read_u8(); + data[..size as usize].copy_from_slice(d.read_raw_bytes(size as usize)); + ScalarInt { data: u128::from_le_bytes(data), size: NonZeroU8::new(size).unwrap() } } } diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 63f7cc2ee73..1871775ee4a 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -925,7 +925,7 @@ impl<'tcx> TyCtxt<'tcx> { crate_name, // Don't print the whole stable crate id. That's just // annoying in debug output. - stable_crate_id.to_u64() >> (8 * 6), + stable_crate_id.as_u64() >> (8 * 6), self.def_path(def_id).to_string_no_crate_verbose() ) } @@ -1329,9 +1329,12 @@ nop_list_lift! {bound_variable_kinds; ty::BoundVariableKind => ty::BoundVariable // This is the impl for `&'a InternalSubsts<'a>`. nop_list_lift! {substs; GenericArg<'a> => GenericArg<'tcx>} -CloneLiftImpls! { for<'tcx> { - Constness, traits::WellFormedLoc, ImplPolarity, crate::mir::ReturnConstraint, -} } +CloneLiftImpls! { + Constness, + traits::WellFormedLoc, + ImplPolarity, + crate::mir::ReturnConstraint, +} macro_rules! sty_debug_print { ($fmt: expr, $ctxt: expr, $($variant: ident),*) => {{ diff --git a/compiler/rustc_middle/src/ty/fast_reject.rs b/compiler/rustc_middle/src/ty/fast_reject.rs index 31d00b65e98..76f61d9ac9c 100644 --- a/compiler/rustc_middle/src/ty/fast_reject.rs +++ b/compiler/rustc_middle/src/ty/fast_reject.rs @@ -68,7 +68,7 @@ pub enum TreatParams { } /// During fast-rejection, we have the choice of treating projection types -/// as either simplifyable or not, depending on whether we expect the projection +/// as either simplifiable or not, depending on whether we expect the projection /// to be normalized/rigid. #[derive(PartialEq, Eq, Debug, Clone, Copy)] pub enum TreatProjections { diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index 195d951f9f3..1e2fd86e13d 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -235,7 +235,7 @@ impl IntoDiagnostic<'_, !> for LayoutError<'_> { } } -// FIXME: Once the other errors that embed this error have been converted to translateable +// FIXME: Once the other errors that embed this error have been converted to translatable // diagnostics, this Display impl should be removed. impl<'tcx> fmt::Display for LayoutError<'tcx> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { @@ -458,10 +458,10 @@ impl<'tcx> SizeSkeleton<'tcx> { } } -/// When creating the layout for types with abstract conts in their size (i.e. [usize; 4 * N]), +/// When creating the layout for types with abstract consts in their size (i.e. [usize; 4 * N]), /// to ensure that they have a canonical order and can be compared directly we combine all /// constants, and sort the other terms. This allows comparison of expressions of sizes, -/// allowing for things like transmutating between types that depend on generic consts. +/// allowing for things like transmuting between types that depend on generic consts. /// This returns `None` if multiplication of constants overflows. fn mul_sorted_consts<'tcx>( tcx: TyCtxt<'tcx>, diff --git a/compiler/rustc_middle/src/ty/list.rs b/compiler/rustc_middle/src/ty/list.rs index 79365ef281b..30f036e471c 100644 --- a/compiler/rustc_middle/src/ty/list.rs +++ b/compiler/rustc_middle/src/ty/list.rs @@ -1,4 +1,5 @@ use crate::arena::Arena; +use rustc_data_structures::aligned::{align_of, Aligned}; use rustc_serialize::{Encodable, Encoder}; use std::alloc::Layout; use std::cmp::Ordering; @@ -198,22 +199,17 @@ impl<'a, T: Copy> IntoIterator for &'a List<T> { unsafe impl<T: Sync> Sync for List<T> {} -unsafe impl<'a, T: 'a> rustc_data_structures::tagged_ptr::Pointer for &'a List<T> { - const BITS: usize = std::mem::align_of::<usize>().trailing_zeros() as usize; - - #[inline] - fn into_usize(self) -> usize { - self as *const List<T> as usize - } - - #[inline] - unsafe fn from_usize(ptr: usize) -> &'a List<T> { - &*(ptr as *const List<T>) - } +// Safety: +// Layouts of `Equivalent<T>` and `List<T>` are the same, modulo opaque tail, +// thus aligns of `Equivalent<T>` and `List<T>` must be the same. +unsafe impl<T> Aligned for List<T> { + const ALIGN: ptr::Alignment = { + #[repr(C)] + struct Equivalent<T> { + _len: usize, + _data: [T; 0], + } - unsafe fn with_ref<R, F: FnOnce(&Self) -> R>(ptr: usize, f: F) -> R { - // `Self` is `&'a List<T>` which impls `Copy`, so this is fine. - let ptr = Self::from_usize(ptr); - f(&ptr) - } + align_of::<Equivalent<T>>() + }; } diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index bc202b027bd..1061c320793 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -1627,7 +1627,8 @@ struct ParamTag { } unsafe impl rustc_data_structures::tagged_ptr::Tag for ParamTag { - const BITS: usize = 2; + const BITS: u32 = 2; + #[inline] fn into_usize(self) -> usize { match self { @@ -1637,6 +1638,7 @@ unsafe impl rustc_data_structures::tagged_ptr::Tag for ParamTag { Self { reveal: traits::Reveal::All, constness: hir::Constness::Const } => 3, } } + #[inline] unsafe fn from_usize(ptr: usize) -> Self { match ptr { @@ -1963,6 +1965,16 @@ impl VariantDef { pub fn ctor_def_id(&self) -> Option<DefId> { self.ctor.map(|(_, def_id)| def_id) } + + /// Returns the one field in this variant. + /// + /// `panic!`s if there are no fields or multiple fields. + #[inline] + pub fn single_field(&self) -> &FieldDef { + assert!(self.fields.len() == 1); + + &self.fields[FieldIdx::from_u32(0)] + } } impl PartialEq for VariantDef { diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 619fcea8b7d..8a2258375ab 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -197,7 +197,7 @@ impl<'tcx> fmt::Debug for AliasTy<'tcx> { // Atomic structs // // For things that don't carry any arena-allocated data (and are -// copy...), just add them to one of these lists as appropriat. +// copy...), just add them to one of these lists as appropriate. // For things for which the type library provides traversal implementations // for all Interners, we only need to provide a Lift implementation: @@ -276,9 +276,7 @@ TrivialTypeTraversalAndLiftImpls! { } TrivialTypeTraversalAndLiftImpls! { - for<'tcx> { - ty::ValTree<'tcx>, - } + ty::ValTree<'tcx>, } /////////////////////////////////////////////////////////////////////////// diff --git a/compiler/rustc_middle/src/ty/util.rs b/compiler/rustc_middle/src/ty/util.rs index c8a78ec03d9..e09f9eeba4b 100644 --- a/compiler/rustc_middle/src/ty/util.rs +++ b/compiler/rustc_middle/src/ty/util.rs @@ -11,7 +11,7 @@ use crate::ty::{ use crate::ty::{GenericArgKind, SubstsRef}; use rustc_apfloat::Float as _; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; -use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{Hash64, HashStable, StableHasher}; use rustc_errors::ErrorGuaranteed; use rustc_hir as hir; use rustc_hir::def::{CtorOf, DefKind, Res}; @@ -124,7 +124,7 @@ impl IntTypeExt for IntegerType { impl<'tcx> TyCtxt<'tcx> { /// Creates a hash of the type `Ty` which will be the same no matter what crate /// context it's calculated within. This is used by the `type_id` intrinsic. - pub fn type_id_hash(self, ty: Ty<'tcx>) -> u64 { + pub fn type_id_hash(self, ty: Ty<'tcx>) -> Hash64 { // We want the type_id be independent of the types free regions, so we // erase them. The erase_regions() call will also anonymize bound // regions, which is desirable too. @@ -642,7 +642,7 @@ impl<'tcx> TyCtxt<'tcx> { } } - /// Return the set of types that should be taken into accound when checking + /// Return the set of types that should be taken into account when checking /// trait bounds on a generator's internal state. pub fn generator_hidden_types( self, @@ -1402,7 +1402,7 @@ pub fn is_trivially_const_drop(ty: Ty<'_>) -> bool { } /// Does the equivalent of -/// ```ignore (ilustrative) +/// ```ignore (illustrative) /// let v = self.iter().map(|p| p.fold_with(folder)).collect::<SmallVec<[_; 8]>>(); /// folder.tcx().intern_*(&v) /// ``` diff --git a/compiler/rustc_middle/src/ty/visit.rs b/compiler/rustc_middle/src/ty/visit.rs index 24a1f04c7e3..1b07f52afca 100644 --- a/compiler/rustc_middle/src/ty/visit.rs +++ b/compiler/rustc_middle/src/ty/visit.rs @@ -33,6 +33,14 @@ pub trait TypeVisitableExt<'tcx>: TypeVisitable<TyCtxt<'tcx>> { } fn has_type_flags(&self, flags: TypeFlags) -> bool { + // N.B. Even though this uses a visitor, the visitor does not actually + // recurse through the whole `TypeVisitable` implementor type. + // + // Instead it stops on the first "level", visiting types, regions, + // consts and predicates just fetches their type flags. + // + // Thus this is a lot faster than it might seem and should be + // optimized to a simple field access. let res = self.visit_with(&mut HasTypeFlagsVisitor { flags }).break_value() == Some(FoundFlags); trace!(?self, ?flags, ?res, "has_type_flags"); diff --git a/compiler/rustc_mir_build/src/build/expr/into.rs b/compiler/rustc_mir_build/src/build/expr/into.rs index 05a723a6b67..9b38ac1cc4c 100644 --- a/compiler/rustc_mir_build/src/build/expr/into.rs +++ b/compiler/rustc_mir_build/src/build/expr/into.rs @@ -163,13 +163,13 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // // [block: If(lhs)] -true-> [else_block: dest = (rhs)] // | (false) - // [shortcurcuit_block: dest = false] + // [shortcircuit_block: dest = false] // // Or: // // [block: If(lhs)] -false-> [else_block: dest = (rhs)] // | (true) - // [shortcurcuit_block: dest = true] + // [shortcircuit_block: dest = true] let (shortcircuit_block, mut else_block, join_block) = ( this.cfg.start_new_block(), diff --git a/compiler/rustc_mir_build/src/build/matches/test.rs b/compiler/rustc_mir_build/src/build/matches/test.rs index 8a03ea7e2cc..4536ecf17b8 100644 --- a/compiler/rustc_mir_build/src/build/matches/test.rs +++ b/compiler/rustc_mir_build/src/build/matches/test.rs @@ -77,7 +77,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { | PatKind::Wild | PatKind::Binding { .. } | PatKind::Leaf { .. } - | PatKind::Deref { .. } => self.error_simplifyable(match_pair), + | PatKind::Deref { .. } => self.error_simplifiable(match_pair), } } @@ -173,7 +173,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { debug_assert_ne!( target_blocks[idx.index()], otherwise_block, - "no canididates for tested discriminant: {:?}", + "no candidates for tested discriminant: {:?}", discr, ); Some((discr.val, target_blocks[idx.index()])) @@ -181,7 +181,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { debug_assert_eq!( target_blocks[idx.index()], otherwise_block, - "found canididates for untested discriminant: {:?}", + "found candidates for untested discriminant: {:?}", discr, ); None @@ -499,7 +499,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { /// However, in some cases, the test may just not be relevant to candidate. /// For example, suppose we are testing whether `foo.x == 22`, but in one /// match arm we have `Foo { x: _, ... }`... in that case, the test for - /// what value `x` has has no particular relevance to this candidate. In + /// the value of `x` has no particular relevance to this candidate. In /// such cases, this function just returns None without doing anything. /// This is used by the overall `match_candidates` algorithm to structure /// the match as a whole. See `match_candidates` for more details. @@ -763,8 +763,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { candidate.match_pairs.extend(consequent_match_pairs); } - fn error_simplifyable<'pat>(&mut self, match_pair: &MatchPair<'pat, 'tcx>) -> ! { - span_bug!(match_pair.pattern.span, "simplifyable pattern found: {:?}", match_pair.pattern) + fn error_simplifiable<'pat>(&mut self, match_pair: &MatchPair<'pat, 'tcx>) -> ! { + span_bug!(match_pair.pattern.span, "simplifiable pattern found: {:?}", match_pair.pattern) } fn const_range_contains( diff --git a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs index 32d0404bd07..c99fc73fe8a 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs @@ -156,7 +156,7 @@ impl<'tcx> ConstToPat<'tcx> { if let Some(non_sm_ty) = structural { if !self.type_may_have_partial_eq_impl(cv.ty()) { - // fatal avoids ICE from resolution of non-existent method (rare case). + // fatal avoids ICE from resolution of nonexistent method (rare case). self.tcx() .sess .emit_fatal(TypeNotStructural { span: self.span, non_sm_ty: non_sm_ty }); diff --git a/compiler/rustc_mir_dataflow/src/value_analysis.rs b/compiler/rustc_mir_dataflow/src/value_analysis.rs index 98bebc9b13b..d8fd06eab86 100644 --- a/compiler/rustc_mir_dataflow/src/value_analysis.rs +++ b/compiler/rustc_mir_dataflow/src/value_analysis.rs @@ -366,7 +366,7 @@ where rustc_index::newtype_index!( /// This index uniquely identifies a place. /// - /// Not every place has a `PlaceIndex`, and not every `PlaceIndex` correspondends to a tracked + /// Not every place has a `PlaceIndex`, and not every `PlaceIndex` corresponds to a tracked /// place. However, every tracked place and all places along its projection have a `PlaceIndex`. pub struct PlaceIndex {} ); diff --git a/compiler/rustc_mir_transform/src/add_moves_for_packed_drops.rs b/compiler/rustc_mir_transform/src/add_moves_for_packed_drops.rs index 896fcd9cdd6..b29ffcc70f9 100644 --- a/compiler/rustc_mir_transform/src/add_moves_for_packed_drops.rs +++ b/compiler/rustc_mir_transform/src/add_moves_for_packed_drops.rs @@ -10,7 +10,7 @@ use rustc_middle::mir::patch::MirPatch; /// they are dropped from an aligned address. /// /// For example, if we have something like -/// ```ignore (ilustrative) +/// ```ignore (illustrative) /// #[repr(packed)] /// struct Foo { /// dealign: u8, @@ -25,7 +25,7 @@ use rustc_middle::mir::patch::MirPatch; /// its address is not aligned. /// /// Instead, we move `foo.data` to a local and drop that: -/// ```ignore (ilustrative) +/// ```ignore (illustrative) /// storage.live(drop_temp) /// drop_temp = foo.data; /// drop(drop_temp) -> next diff --git a/compiler/rustc_mir_transform/src/add_retag.rs b/compiler/rustc_mir_transform/src/add_retag.rs index 916f2904dda..187d38b385b 100644 --- a/compiler/rustc_mir_transform/src/add_retag.rs +++ b/compiler/rustc_mir_transform/src/add_retag.rs @@ -59,7 +59,7 @@ impl<'tcx> MirPass<'tcx> for AddRetag { let basic_blocks = body.basic_blocks.as_mut(); let local_decls = &body.local_decls; let needs_retag = |place: &Place<'tcx>| { - !place.has_deref() // we're not eally interested in stores to "outside" locations, they are hard to keep track of anyway + !place.has_deref() // we're not really interested in stores to "outside" locations, they are hard to keep track of anyway && may_contain_reference(place.ty(&*local_decls, tcx).ty, /*depth*/ 3, tcx) && !local_decls[place.local].is_deref_temp() }; diff --git a/compiler/rustc_mir_transform/src/const_debuginfo.rs b/compiler/rustc_mir_transform/src/const_debuginfo.rs index 6f0ae4f07ab..692b3182f7d 100644 --- a/compiler/rustc_mir_transform/src/const_debuginfo.rs +++ b/compiler/rustc_mir_transform/src/const_debuginfo.rs @@ -22,7 +22,7 @@ impl<'tcx> MirPass<'tcx> for ConstDebugInfo { fn run_pass(&self, _tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { trace!("running ConstDebugInfo on {:?}", body.source); - for (local, constant) in find_optimization_oportunities(body) { + for (local, constant) in find_optimization_opportunities(body) { for debuginfo in &mut body.var_debug_info { if let VarDebugInfoContents::Place(p) = debuginfo.value { if p.local == local && p.projection.is_empty() { @@ -45,7 +45,7 @@ struct LocalUseVisitor { local_assignment_locations: IndexVec<Local, Option<Location>>, } -fn find_optimization_oportunities<'tcx>(body: &Body<'tcx>) -> Vec<(Local, Constant<'tcx>)> { +fn find_optimization_opportunities<'tcx>(body: &Body<'tcx>) -> Vec<(Local, Constant<'tcx>)> { let mut visitor = LocalUseVisitor { local_mutating_uses: IndexVec::from_elem(0, &body.local_decls), local_assignment_locations: IndexVec::from_elem(None, &body.local_decls), diff --git a/compiler/rustc_mir_transform/src/const_prop.rs b/compiler/rustc_mir_transform/src/const_prop.rs index c0146e3efb0..c9537f9a61c 100644 --- a/compiler/rustc_mir_transform/src/const_prop.rs +++ b/compiler/rustc_mir_transform/src/const_prop.rs @@ -826,7 +826,7 @@ impl Visitor<'_> for CanConstProp { | NonMutatingUse(NonMutatingUseContext::AddressOf) | MutatingUse(MutatingUseContext::Borrow) | MutatingUse(MutatingUseContext::AddressOf) => { - trace!("local {:?} can't be propagaged because it's used: {:?}", local, context); + trace!("local {:?} can't be propagated because it's used: {:?}", local, context); self.can_const_prop[local] = ConstPropMode::NoPropagation; } } diff --git a/compiler/rustc_mir_transform/src/coverage/graph.rs b/compiler/rustc_mir_transform/src/coverage/graph.rs index 7391a77b0a6..8ff67b5f8d3 100644 --- a/compiler/rustc_mir_transform/src/coverage/graph.rs +++ b/compiler/rustc_mir_transform/src/coverage/graph.rs @@ -111,7 +111,7 @@ impl CoverageGraph { if predecessors.len() > 1 { "predecessors.len() > 1".to_owned() } else { - format!("bb {} is not in precessors: {:?}", bb.index(), predecessors) + format!("bb {} is not in predecessors: {:?}", bb.index(), predecessors) } ); } diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs index 5ecb2d6a631..444b1565d36 100644 --- a/compiler/rustc_mir_transform/src/coverage/mod.rs +++ b/compiler/rustc_mir_transform/src/coverage/mod.rs @@ -577,5 +577,10 @@ fn get_body_span<'tcx>( fn hash_mir_source<'tcx>(tcx: TyCtxt<'tcx>, hir_body: &'tcx rustc_hir::Body<'tcx>) -> u64 { // FIXME(cjgillot) Stop hashing HIR manually here. let owner = hir_body.id().hir_id.owner; - tcx.hir_owner_nodes(owner).unwrap().opt_hash_including_bodies.unwrap().to_smaller_hash() + tcx.hir_owner_nodes(owner) + .unwrap() + .opt_hash_including_bodies + .unwrap() + .to_smaller_hash() + .as_u64() } diff --git a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs index d4db7e2de40..a56c5cc5c12 100644 --- a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs +++ b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs @@ -351,7 +351,7 @@ impl<'a, 'tcx> ConstAnalysis<'a, 'tcx> { } (FlatSet::Bottom, _) | (_, FlatSet::Bottom) => (FlatSet::Bottom, FlatSet::Bottom), (_, _) => { - // Could attempt some algebraic simplifcations here. + // Could attempt some algebraic simplifications here. (FlatSet::Top, FlatSet::Top) } } diff --git a/compiler/rustc_mir_transform/src/deduce_param_attrs.rs b/compiler/rustc_mir_transform/src/deduce_param_attrs.rs index e5c3fa5646a..8ee08c5be34 100644 --- a/compiler/rustc_mir_transform/src/deduce_param_attrs.rs +++ b/compiler/rustc_mir_transform/src/deduce_param_attrs.rs @@ -9,7 +9,7 @@ use rustc_hir::def_id::LocalDefId; use rustc_index::bit_set::BitSet; use rustc_middle::mir::visit::{NonMutatingUseContext, PlaceContext, Visitor}; use rustc_middle::mir::{Body, Local, Location, Operand, Terminator, TerminatorKind, RETURN_PLACE}; -use rustc_middle::ty::{self, DeducedParamAttrs, ParamEnv, Ty, TyCtxt}; +use rustc_middle::ty::{self, DeducedParamAttrs, Ty, TyCtxt}; use rustc_session::config::OptLevel; /// A visitor that determines which arguments have been mutated. We can't use the mutability field @@ -198,11 +198,12 @@ pub fn deduced_param_attrs<'tcx>( // see [1]. // // [1]: https://github.com/rust-lang/rust/pull/103172#discussion_r999139997 + let param_env = tcx.param_env_reveal_all_normalized(def_id); let mut deduced_param_attrs = tcx.arena.alloc_from_iter( body.local_decls.iter().skip(1).take(body.arg_count).enumerate().map( |(arg_index, local_decl)| DeducedParamAttrs { read_only: !deduce_read_only.mutable_args.contains(arg_index) - && local_decl.ty.is_freeze(tcx, ParamEnv::reveal_all()), + && local_decl.ty.is_freeze(tcx, param_env), }, ), ); diff --git a/compiler/rustc_mir_transform/src/dest_prop.rs b/compiler/rustc_mir_transform/src/dest_prop.rs index 39164917770..5a842714e5d 100644 --- a/compiler/rustc_mir_transform/src/dest_prop.rs +++ b/compiler/rustc_mir_transform/src/dest_prop.rs @@ -69,7 +69,7 @@ //! of this is that such liveness analysis can report more accurate results about whole locals at //! a time. For example, consider: //! -//! ```ignore (syntax-highliting-only) +//! ```ignore (syntax-highlighting-only) //! _1 = u; //! // unrelated code //! _1.f1 = v; @@ -360,7 +360,7 @@ struct FilterInformation<'a, 'body, 'alloc, 'tcx> { } // We first implement some utility functions which we will expose removing candidates according to -// different needs. Throughout the livenss filtering, the `candidates` are only ever accessed +// different needs. Throughout the liveness filtering, the `candidates` are only ever accessed // through these methods, and not directly. impl<'alloc> Candidates<'alloc> { /// Just `Vec::retain`, but the condition is inverted and we add debugging output diff --git a/compiler/rustc_mir_transform/src/elaborate_drops.rs b/compiler/rustc_mir_transform/src/elaborate_drops.rs index a702113bd99..1e115be2c2a 100644 --- a/compiler/rustc_mir_transform/src/elaborate_drops.rs +++ b/compiler/rustc_mir_transform/src/elaborate_drops.rs @@ -24,7 +24,7 @@ use std::fmt; /// In general, the compiler cannot determine at compile time whether a destructor will run or not. /// /// At a high level, this pass refines Drop to only run the destructor if the -/// target is initialized. The way this is achievied is by inserting drop flags for every variable +/// target is initialized. The way this is achieved is by inserting drop flags for every variable /// that may be dropped, and then using those flags to determine whether a destructor should run. /// Once this is complete, Drop terminators in the MIR correspond to a call to the "drop glue" or /// "drop shim" for the type of the dropped place. diff --git a/compiler/rustc_mir_transform/src/generator.rs b/compiler/rustc_mir_transform/src/generator.rs index 4c4423721fb..507e12d7238 100644 --- a/compiler/rustc_mir_transform/src/generator.rs +++ b/compiler/rustc_mir_transform/src/generator.rs @@ -1869,7 +1869,7 @@ fn check_must_not_suspend_ty<'tcx>( }, ) } - // If drop tracking is enabled, we want to look through references, since the referrent + // If drop tracking is enabled, we want to look through references, since the referent // may not be considered live across the await point. ty::Ref(_region, ty, _mutability) => { let descr_pre = &format!("{}reference{} to ", data.descr_pre, plural_suffix); diff --git a/compiler/rustc_mir_transform/src/ssa.rs b/compiler/rustc_mir_transform/src/ssa.rs index be026402dd5..9d9c5d54038 100644 --- a/compiler/rustc_mir_transform/src/ssa.rs +++ b/compiler/rustc_mir_transform/src/ssa.rs @@ -21,7 +21,7 @@ pub struct SsaLocals { /// We often encounter MIR bodies with 1 or 2 basic blocks. In those cases, it's unnecessary to /// actually compute dominators, we can just compare block indices because bb0 is always the first -/// block, and in any body all other blocks are always always dominated by bb0. +/// block, and in any body all other blocks are always dominated by bb0. struct SmallDominators { inner: Option<Dominators<BasicBlock>>, } diff --git a/compiler/rustc_monomorphize/src/collector.rs b/compiler/rustc_monomorphize/src/collector.rs index 7bcff7e07fb..2ed628871d2 100644 --- a/compiler/rustc_monomorphize/src/collector.rs +++ b/compiler/rustc_monomorphize/src/collector.rs @@ -402,7 +402,7 @@ fn collect_roots(tcx: TyCtxt<'_>, mode: MonoItemCollectionMode) -> Vec<MonoItem< } /// Collect all monomorphized items reachable from `starting_point`, and emit a note diagnostic if a -/// post-monorphization error is encountered during a collection step. +/// post-monomorphization error is encountered during a collection step. #[instrument(skip(tcx, visited, recursion_depths, recursion_limit, inlining_map), level = "debug")] fn collect_items_rec<'tcx>( tcx: TyCtxt<'tcx>, diff --git a/compiler/rustc_monomorphize/src/partitioning/default.rs b/compiler/rustc_monomorphize/src/partitioning/default.rs index 769e12f77bf..49126045d0c 100644 --- a/compiler/rustc_monomorphize/src/partitioning/default.rs +++ b/compiler/rustc_monomorphize/src/partitioning/default.rs @@ -424,7 +424,7 @@ fn mono_item_visibility<'tcx>( InstanceDef::Item(def) => def.did, InstanceDef::DropGlue(def_id, Some(_)) => def_id, - // We match the visiblity of statics here + // We match the visibility of statics here InstanceDef::ThreadLocalShim(def_id) => { return static_visibility(tcx, can_be_internalized, def_id); } diff --git a/compiler/rustc_parse/src/lexer/mod.rs b/compiler/rustc_parse/src/lexer/mod.rs index 9e856c9f212..ad9b20f9c76 100644 --- a/compiler/rustc_parse/src/lexer/mod.rs +++ b/compiler/rustc_parse/src/lexer/mod.rs @@ -67,7 +67,7 @@ pub(crate) fn parse_token_trees<'a>( match token_trees { Ok(stream) if unmatched_delims.is_empty() => Ok(stream), _ => { - // Return error if there are unmatched delimiters or unclosng delimiters. + // Return error if there are unmatched delimiters or unclosed delimiters. // We emit delimiter mismatch errors first, then emit the unclosing delimiter mismatch // because the delimiter mismatch is more likely to be the root cause of error diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_parse/src/validate_attr.rs index 72402a20090..2f397e303e5 100644 --- a/compiler/rustc_parse/src/validate_attr.rs +++ b/compiler/rustc_parse/src/validate_attr.rs @@ -68,7 +68,7 @@ pub fn parse_meta<'a>(sess: &'a ParseSess, attr: &Attribute) -> PResult<'a, Meta } } else { // The non-error case can happen with e.g. `#[foo = 1+1]`. The error case can - // happen with e.g. `#[foo = include_str!("non-existent-file.rs")]`; in that + // 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)); diff --git a/compiler/rustc_passes/messages.ftl b/compiler/rustc_passes/messages.ftl index b354dca7cc4..055682a1509 100644 --- a/compiler/rustc_passes/messages.ftl +++ b/compiler/rustc_passes/messages.ftl @@ -627,9 +627,9 @@ passes_attr_application_struct_enum_union = attribute should be applied to a struct, enum, or union .label = not a struct, enum, or union -passes_attr_application_struct_enum_function_union = - attribute should be applied to a struct, enum, function, or union - .label = not a struct, enum, function, or union +passes_attr_application_struct_enum_function_method_union = + attribute should be applied to a struct, enum, function, associated function, or union + .label = not a struct, enum, function, associated function, or union passes_transparent_incompatible = transparent {$target} cannot have other repr hints diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index 80a93da2b45..085a28626ea 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -1728,7 +1728,9 @@ impl CheckAttrVisitor<'_> { } } sym::align => { - if let (Target::Fn, false) = (target, self.tcx.features().fn_align) { + if let (Target::Fn | Target::Method(MethodKind::Inherent), false) = + (target, self.tcx.features().fn_align) + { feature_err( &self.tcx.sess.parse_sess, sym::fn_align, @@ -1739,10 +1741,14 @@ impl CheckAttrVisitor<'_> { } match target { - Target::Struct | Target::Union | Target::Enum | Target::Fn => continue, + Target::Struct + | Target::Union + | Target::Enum + | Target::Fn + | Target::Method(_) => continue, _ => { self.tcx.sess.emit_err( - errors::AttrApplication::StructEnumFunctionUnion { + errors::AttrApplication::StructEnumFunctionMethodUnion { hint_span: hint.span(), span, }, diff --git a/compiler/rustc_passes/src/errors.rs b/compiler/rustc_passes/src/errors.rs index 139ba8c9677..e8603b3a2f1 100644 --- a/compiler/rustc_passes/src/errors.rs +++ b/compiler/rustc_passes/src/errors.rs @@ -1355,8 +1355,8 @@ pub enum AttrApplication { #[label] span: Span, }, - #[diag(passes_attr_application_struct_enum_function_union, code = "E0517")] - StructEnumFunctionUnion { + #[diag(passes_attr_application_struct_enum_function_method_union, code = "E0517")] + StructEnumFunctionMethodUnion { #[primary_span] hint_span: Span, #[label] diff --git a/compiler/rustc_query_impl/src/on_disk_cache.rs b/compiler/rustc_query_impl/src/on_disk_cache.rs index 30477c7bd44..d43af643b3b 100644 --- a/compiler/rustc_query_impl/src/on_disk_cache.rs +++ b/compiler/rustc_query_impl/src/on_disk_cache.rs @@ -1,6 +1,7 @@ use crate::QueryCtxt; use rustc_data_structures::fx::{FxHashMap, FxIndexSet}; use rustc_data_structures::memmap::Mmap; +use rustc_data_structures::stable_hasher::Hash64; use rustc_data_structures::sync::{HashMapExt, Lock, Lrc, RwLock}; use rustc_data_structures::unhash::UnhashMap; use rustc_data_structures::unord::UnordSet; @@ -138,7 +139,7 @@ impl AbsoluteBytePos { /// is the only thing available when decoding the cache's [Footer]. #[derive(Encodable, Decodable, Clone, Debug)] struct EncodedSourceFileId { - file_name_hash: u64, + file_name_hash: Hash64, stable_crate_id: StableCrateId, } @@ -667,7 +668,7 @@ impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for ExpnId { #[cfg(debug_assertions)] { use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; - let local_hash: u64 = decoder.tcx.with_stable_hashing_context(|mut hcx| { + let local_hash = decoder.tcx.with_stable_hashing_context(|mut hcx| { let mut hasher = StableHasher::new(); expn_id.expn_data().hash_stable(&mut hcx, &mut hasher); hasher.finish() @@ -744,7 +745,7 @@ impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for Symbol { let pos = d.read_usize(); let old_pos = d.opaque.position(); - // move to str ofset and read + // move to str offset and read d.opaque.set_position(pos); let s = d.read_str(); let sym = Symbol::intern(s); diff --git a/compiler/rustc_query_impl/src/plumbing.rs b/compiler/rustc_query_impl/src/plumbing.rs index afbead7d1ae..32222df25d4 100644 --- a/compiler/rustc_query_impl/src/plumbing.rs +++ b/compiler/rustc_query_impl/src/plumbing.rs @@ -5,7 +5,7 @@ use crate::on_disk_cache::{CacheDecoder, CacheEncoder, EncodedDepNodeIndex}; use crate::profiling_support::QueryKeyStringCache; use crate::{on_disk_cache, Queries}; -use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{Hash64, HashStable, StableHasher}; use rustc_data_structures::sync::{AtomicU64, Lock}; use rustc_errors::{Diagnostic, Handler}; use rustc_middle::dep_graph::{ @@ -342,7 +342,7 @@ pub(crate) fn create_query_frame< let mut hasher = StableHasher::new(); std::mem::discriminant(&kind).hash_stable(&mut hcx, &mut hasher); key.hash_stable(&mut hcx, &mut hasher); - hasher.finish::<u64>() + hasher.finish::<Hash64>() }) }; let ty_adt_id = key.ty_adt_id(); diff --git a/compiler/rustc_query_system/messages.ftl b/compiler/rustc_query_system/messages.ftl index 870e824039c..0d01123ad88 100644 --- a/compiler/rustc_query_system/messages.ftl +++ b/compiler/rustc_query_system/messages.ftl @@ -1,4 +1,4 @@ -query_system_reentrant = internal compiler error: re-entrant incremental verify failure, suppressing message +query_system_reentrant = internal compiler error: reentrant incremental verify failure, suppressing message query_system_increment_compilation = internal compiler error: encountered incremental compilation error with {$dep_node} .help = This is a known issue with the compiler. Run {$run_cmd} to allow your project to compile diff --git a/compiler/rustc_query_system/src/dep_graph/graph.rs b/compiler/rustc_query_system/src/dep_graph/graph.rs index a9a2e6dd04c..fd9e685ab80 100644 --- a/compiler/rustc_query_system/src/dep_graph/graph.rs +++ b/compiler/rustc_query_system/src/dep_graph/graph.rs @@ -249,7 +249,7 @@ impl<K: DepKind> DepGraph<K> { /// get an ICE. Normally, we would have tried (and failed) to mark /// some other query green (e.g. `item_children`) which was used /// to obtain `C`, which would prevent us from ever trying to force - /// a non-existent `D`. + /// a nonexistent `D`. /// /// It might be possible to enforce that all `DepNode`s read during /// deserialization already exist in the previous `DepGraph`. In diff --git a/compiler/rustc_query_system/src/dep_graph/query.rs b/compiler/rustc_query_system/src/dep_graph/query.rs index 27b3b5e1366..9dcc41e2726 100644 --- a/compiler/rustc_query_system/src/dep_graph/query.rs +++ b/compiler/rustc_query_system/src/dep_graph/query.rs @@ -24,10 +24,7 @@ impl<K: DepKind> DepGraphQuery<K> { pub fn push(&mut self, index: DepNodeIndex, node: DepNode<K>, edges: &[DepNodeIndex]) { let source = self.graph.add_node(node); - if index.index() >= self.dep_index_to_index.len() { - self.dep_index_to_index.resize(index.index() + 1, None); - } - self.dep_index_to_index[index] = Some(source); + self.dep_index_to_index.insert(index, source); self.indices.insert(node, source); for &target in edges.iter() { diff --git a/compiler/rustc_query_system/src/query/config.rs b/compiler/rustc_query_system/src/query/config.rs index c8d77938510..bb9ea50a1ea 100644 --- a/compiler/rustc_query_system/src/query/config.rs +++ b/compiler/rustc_query_system/src/query/config.rs @@ -63,7 +63,7 @@ pub trait QueryConfig<Qcx: QueryContext>: Copy { fn handle_cycle_error(self) -> HandleCycleError; fn hash_result(self) -> HashResult<Self::Value>; - // Just here for convernience and checking that the key matches the kind, don't override this. + // Just here for convenience and checking that the key matches the kind, don't override this. fn construct_dep_node(self, tcx: Qcx::DepContext, key: &Self::Key) -> DepNode<Qcx::DepKind> { DepNode::construct(tcx, self.dep_kind(), key) } diff --git a/compiler/rustc_query_system/src/query/mod.rs b/compiler/rustc_query_system/src/query/mod.rs index 312b0e1688d..fa1f51b04da 100644 --- a/compiler/rustc_query_system/src/query/mod.rs +++ b/compiler/rustc_query_system/src/query/mod.rs @@ -16,6 +16,7 @@ pub use self::config::{HashResult, QueryConfig, TryLoadFromDisk}; use crate::dep_graph::DepKind; use crate::dep_graph::{DepNodeIndex, HasDepContext, SerializedDepNodeIndex}; +use rustc_data_structures::stable_hasher::Hash64; use rustc_data_structures::sync::Lock; use rustc_errors::Diagnostic; use rustc_hir::def::DefKind; @@ -37,7 +38,7 @@ pub struct QueryStackFrame<D: DepKind> { /// This hash is used to deterministically pick /// a query to remove cycles in the parallel compiler. #[cfg(parallel_compiler)] - hash: u64, + hash: Hash64, } impl<D: DepKind> QueryStackFrame<D> { @@ -49,7 +50,7 @@ impl<D: DepKind> QueryStackFrame<D> { def_kind: Option<DefKind>, dep_kind: D, ty_adt_id: Option<DefId>, - _hash: impl FnOnce() -> u64, + _hash: impl FnOnce() -> Hash64, ) -> Self { Self { description, diff --git a/compiler/rustc_query_system/src/query/plumbing.rs b/compiler/rustc_query_system/src/query/plumbing.rs index 20310483d7e..4a6d07a03cc 100644 --- a/compiler/rustc_query_system/src/query/plumbing.rs +++ b/compiler/rustc_query_system/src/query/plumbing.rs @@ -573,7 +573,7 @@ where // from disk. Re-hashing results is fairly expensive, so we can't // currently afford to verify every hash. This subset should still // give us some coverage of potential bugs though. - let try_verify = prev_fingerprint.as_value().1 % 32 == 0; + let try_verify = prev_fingerprint.split().1.as_u64() % 32 == 0; if std::intrinsics::unlikely( try_verify || qcx.dep_context().sess().opts.unstable_opts.incremental_verify_ich, ) { @@ -691,7 +691,7 @@ fn incremental_verify_ich_failed<Tcx>( // which may result in another fingerprint mismatch while we're in the middle // of processing this one. To avoid a double-panic (which kills the process // before we can print out the query static), we print out a terse - // but 'safe' message if we detect a re-entrant call to this method. + // but 'safe' message if we detect a reentrant call to this method. thread_local! { static INSIDE_VERIFY_PANIC: Cell<bool> = const { Cell::new(false) }; }; diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index ff0f1f55975..f905cec1011 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -931,7 +931,13 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { /// Builds the reduced graph for a single item in an external crate. fn build_reduced_graph_for_external_crate_res(&mut self, child: ModChild) { let parent = self.parent_scope.module; - let ModChild { ident, res, vis, span, .. } = child; + let ModChild { ident, res, vis, reexport_chain } = child; + let span = self.r.def_span( + reexport_chain + .first() + .and_then(|reexport| reexport.id()) + .unwrap_or_else(|| res.def_id()), + ); let res = res.expect_non_local(); let expansion = self.parent_scope.expansion; // Record primary definitions. diff --git a/compiler/rustc_resolve/src/effective_visibilities.rs b/compiler/rustc_resolve/src/effective_visibilities.rs index bed579f6b92..87067189a77 100644 --- a/compiler/rustc_resolve/src/effective_visibilities.rs +++ b/compiler/rustc_resolve/src/effective_visibilities.rs @@ -175,7 +175,7 @@ impl<'r, 'a, 'tcx> EffectiveVisibilitiesVisitor<'r, 'a, 'tcx> { /// to not update anything and we can skip it. /// /// We are checking this condition only if the correct value of private visibility is - /// cheaply available, otherwise it does't make sense performance-wise. + /// cheaply available, otherwise it doesn't make sense performance-wise. /// /// `None` is returned if the update can be skipped, /// and cheap private visibility is returned otherwise. diff --git a/compiler/rustc_resolve/src/errors.rs b/compiler/rustc_resolve/src/errors.rs index afa796cb645..af0ec236df0 100644 --- a/compiler/rustc_resolve/src/errors.rs +++ b/compiler/rustc_resolve/src/errors.rs @@ -22,7 +22,7 @@ pub(crate) struct UnderscoreLifetimeNameCannotBeUsedHere(#[primary_span] pub(cra #[derive(Diagnostic)] #[diag(resolve_crate_may_not_be_imported)] -pub(crate) struct CrateMayNotBeImprted(#[primary_span] pub(crate) Span); +pub(crate) struct CrateMayNotBeImported(#[primary_span] pub(crate) Span); #[derive(Diagnostic)] #[diag(resolve_crate_root_imports_must_be_named_explicitly)] diff --git a/compiler/rustc_resolve/src/imports.rs b/compiler/rustc_resolve/src/imports.rs index 3c22d51c3d4..d7c518fbdd0 100644 --- a/compiler/rustc_resolve/src/imports.rs +++ b/compiler/rustc_resolve/src/imports.rs @@ -1276,13 +1276,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { next_binding = binding; } - reexports.push(ModChild { - ident, - res, - vis: binding.vis, - span: binding.span, - reexport_chain, - }); + reexports.push(ModChild { ident, res, vis: binding.vis, reexport_chain }); } }); diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index 90a2fa89cd2..a97857e05e2 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -1079,7 +1079,7 @@ impl<'a: 'ast, 'ast, 'tcx> Visitor<'ast> for LateResolutionVisitor<'a, '_, 'ast, for rib in self.lifetime_ribs.iter().rev() { match rib.kind { // We are inside a `PolyTraitRef`. The lifetimes are - // to be intoduced in that (maybe implicit) `for<>` binder. + // to be introduced in that (maybe implicit) `for<>` binder. LifetimeRibKind::Generics { binder, kind: LifetimeBinderKind::PolyTrait, @@ -3803,7 +3803,7 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> { // use std::u8; // bring module u8 in scope // fn f() -> u8 { // OK, resolves to primitive u8, not to std::u8 // u8::max_value() // OK, resolves to associated function <u8>::max_value, - // // not to non-existent std::u8::max_value + // // not to nonexistent std::u8::max_value // } // // Such behavior is required for backward compatibility. diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index 37fbfad2de6..e824a6ddc07 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -91,7 +91,7 @@ fn import_candidate_to_enum_paths(suggestion: &ImportSuggestion) -> (String, Str /// Description of an elided lifetime. #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug)] pub(super) struct MissingLifetime { - /// Used to overwrite the resolution with the suggestion, to avoid cascasing errors. + /// Used to overwrite the resolution with the suggestion, to avoid cascading errors. pub id: NodeId, /// Where to suggest adding the lifetime. pub span: Span, @@ -408,7 +408,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { } let Some(path_last_segment) = path.last() else { return }; let item_str = path_last_segment.ident; - // Emit help message for fake-self from other languages (e.g., `this` in Javascript). + // Emit help message for fake-self from other languages (e.g., `this` in JavaScript). if ["this", "my"].contains(&item_str.as_str()) { err.span_suggestion_short( span, diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs index 340bb158e17..14a8e8ff727 100644 --- a/compiler/rustc_session/src/session.rs +++ b/compiler/rustc_session/src/session.rs @@ -811,7 +811,7 @@ impl Session { } pub fn generate_proc_macro_decls_symbol(&self, stable_crate_id: StableCrateId) -> String { - format!("__rustc_proc_macro_decls_{:08x}__", stable_crate_id.to_u64()) + format!("__rustc_proc_macro_decls_{:08x}__", stable_crate_id.as_u64()) } pub fn target_filesearch(&self, kind: PathKind) -> filesearch::FileSearch<'_> { diff --git a/compiler/rustc_span/src/def_id.rs b/compiler/rustc_span/src/def_id.rs index b2c58caff2e..6004009c6ff 100644 --- a/compiler/rustc_span/src/def_id.rs +++ b/compiler/rustc_span/src/def_id.rs @@ -1,12 +1,11 @@ use crate::{HashStableContext, Symbol}; use rustc_data_structures::fingerprint::Fingerprint; -use rustc_data_structures::stable_hasher::{HashStable, StableHasher, ToStableHashKey}; +use rustc_data_structures::stable_hasher::{Hash64, HashStable, StableHasher, ToStableHashKey}; use rustc_data_structures::unhash::Unhasher; use rustc_data_structures::AtomicRef; use rustc_index::vec::Idx; use rustc_macros::HashStable_Generic; use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; -use std::borrow::Borrow; use std::fmt; use std::hash::{BuildHasherDefault, Hash, Hasher}; @@ -105,20 +104,20 @@ impl DefPathHash { /// originates from. #[inline] pub fn stable_crate_id(&self) -> StableCrateId { - StableCrateId(self.0.as_value().0) + StableCrateId(self.0.split().0) } /// Returns the crate-local part of the [DefPathHash]. /// /// Used for tests. #[inline] - pub fn local_hash(&self) -> u64 { - self.0.as_value().1 + pub fn local_hash(&self) -> Hash64 { + self.0.split().1 } /// Builds a new [DefPathHash] with the given [StableCrateId] and /// `local_hash`, where `local_hash` must be unique within its crate. - pub fn new(stable_crate_id: StableCrateId, local_hash: u64) -> DefPathHash { + pub fn new(stable_crate_id: StableCrateId, local_hash: Hash64) -> DefPathHash { DefPathHash(Fingerprint::new(stable_crate_id.0, local_hash)) } } @@ -129,13 +128,6 @@ impl Default for DefPathHash { } } -impl Borrow<Fingerprint> for DefPathHash { - #[inline] - fn borrow(&self) -> &Fingerprint { - &self.0 - } -} - /// A [`StableCrateId`] is a 64-bit hash of a crate name, together with all /// `-Cmetadata` arguments, and some other data. It is to [`CrateNum`] what [`DefPathHash`] is to /// [`DefId`]. It is stable across compilation sessions. @@ -147,15 +139,11 @@ impl Borrow<Fingerprint> for DefPathHash { /// /// For more information on the possibility of hash collisions in rustc, /// see the discussion in [`DefId`]. -#[derive(Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord, Debug)] -#[derive(HashStable_Generic, Encodable, Decodable)] -pub struct StableCrateId(pub(crate) u64); +#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug)] +#[derive(Hash, HashStable_Generic, Encodable, Decodable)] +pub struct StableCrateId(pub(crate) Hash64); impl StableCrateId { - pub fn to_u64(self) -> u64 { - self.0 - } - /// Computes the stable ID for a crate with the given name and /// `-Cmetadata` arguments. pub fn new(crate_name: Symbol, is_exe: bool, mut metadata: Vec<String>) -> StableCrateId { @@ -197,6 +185,17 @@ impl StableCrateId { StableCrateId(hasher.finish()) } + + #[inline] + pub fn as_u64(self) -> u64 { + self.0.as_u64() + } +} + +impl fmt::LowerHex for StableCrateId { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::LowerHex::fmt(&self.0, f) + } } rustc_index::newtype_index! { diff --git a/compiler/rustc_span/src/hygiene.rs b/compiler/rustc_span/src/hygiene.rs index 08c4414034a..f8741d85934 100644 --- a/compiler/rustc_span/src/hygiene.rs +++ b/compiler/rustc_span/src/hygiene.rs @@ -33,7 +33,7 @@ use crate::def_id::{CrateNum, DefId, StableCrateId, CRATE_DEF_ID, LOCAL_CRATE}; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_data_structures::stable_hasher::HashingControls; -use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{Hash64, HashStable, StableHasher}; use rustc_data_structures::sync::{Lock, Lrc}; use rustc_data_structures::unhash::UnhashMap; use rustc_index::vec::IndexVec; @@ -123,15 +123,15 @@ impl ExpnHash { /// originates from. #[inline] pub fn stable_crate_id(self) -> StableCrateId { - StableCrateId(self.0.as_value().0) + StableCrateId(self.0.split().0) } /// Returns the crate-local part of the [ExpnHash]. /// /// Used for tests. #[inline] - pub fn local_hash(self) -> u64 { - self.0.as_value().1 + pub fn local_hash(self) -> Hash64 { + self.0.split().1 } #[inline] @@ -141,7 +141,7 @@ impl ExpnHash { /// Builds a new [ExpnHash] with the given [StableCrateId] and /// `local_hash`, where `local_hash` must be unique within its crate. - fn new(stable_crate_id: StableCrateId, local_hash: u64) -> ExpnHash { + fn new(stable_crate_id: StableCrateId, local_hash: Hash64) -> ExpnHash { ExpnHash(Fingerprint::new(stable_crate_id.0, local_hash)) } } @@ -350,7 +350,7 @@ pub struct HygieneData { /// would have collisions without a disambiguator. /// The keys of this map are always computed with `ExpnData.disambiguator` /// set to 0. - expn_data_disambiguators: FxHashMap<u64, u32>, + expn_data_disambiguators: FxHashMap<Hash64, u32>, } impl HygieneData { @@ -1040,7 +1040,7 @@ impl ExpnData { } #[inline] - fn hash_expn(&self, ctx: &mut impl HashStableContext) -> u64 { + fn hash_expn(&self, ctx: &mut impl HashStableContext) -> Hash64 { let mut hasher = StableHasher::new(); self.hash_stable(ctx, &mut hasher); hasher.finish() diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index 911d6902c98..83f4907d517 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -59,7 +59,7 @@ pub mod fatal_error; pub mod profiling; -use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{Hash128, Hash64, HashStable, StableHasher}; use rustc_data_structures::sync::{Lock, Lrc}; use std::borrow::Cow; @@ -282,22 +282,22 @@ impl RealFileName { pub enum FileName { Real(RealFileName), /// Call to `quote!`. - QuoteExpansion(u64), + QuoteExpansion(Hash64), /// Command line. - Anon(u64), + Anon(Hash64), /// Hack in `src/librustc_ast/parse.rs`. // FIXME(jseyfried) - MacroExpansion(u64), - ProcMacroSourceCode(u64), + MacroExpansion(Hash64), + ProcMacroSourceCode(Hash64), /// Strings provided as `--cfg [cfgspec]` stored in a `crate_cfg`. - CfgSpec(u64), + CfgSpec(Hash64), /// Strings provided as crate attributes in the CLI. - CliCrateAttr(u64), + CliCrateAttr(Hash64), /// Custom sources for explicit parser calls from plugins and drivers. Custom(String), DocTest(PathBuf, isize), /// Post-substitution inline assembly from LLVM. - InlineAsm(u64), + InlineAsm(Hash64), } impl From<PathBuf> for FileName { @@ -1343,7 +1343,7 @@ pub struct SourceFile { /// Locations of characters removed during normalization. pub normalized_pos: Vec<NormalizedPos>, /// A hash of the filename, used for speeding up hashing in incremental compilation. - pub name_hash: u128, + pub name_hash: Hash128, /// Indicates which crate this `SourceFile` was imported from. pub cnum: CrateNum, } @@ -1472,7 +1472,7 @@ impl<D: Decoder> Decodable<D> for SourceFile { }; let multibyte_chars: Vec<MultiByteChar> = Decodable::decode(d); let non_narrow_chars: Vec<NonNarrowChar> = Decodable::decode(d); - let name_hash: u128 = Decodable::decode(d); + let name_hash = Decodable::decode(d); let normalized_pos: Vec<NormalizedPos> = Decodable::decode(d); let cnum: CrateNum = Decodable::decode(d); SourceFile { @@ -1514,7 +1514,7 @@ impl SourceFile { let name_hash = { let mut hasher: StableHasher = StableHasher::new(); name.hash(&mut hasher); - hasher.finish::<u128>() + hasher.finish() }; let end_pos = start_pos.to_usize() + src.len(); assert!(end_pos <= u32::MAX as usize); diff --git a/compiler/rustc_span/src/source_map.rs b/compiler/rustc_span/src/source_map.rs index 29a7e74a816..1294a8b8e6b 100644 --- a/compiler/rustc_span/src/source_map.rs +++ b/compiler/rustc_span/src/source_map.rs @@ -13,7 +13,7 @@ pub use crate::hygiene::{ExpnData, ExpnKind}; pub use crate::*; use rustc_data_structures::fx::FxHashMap; -use rustc_data_structures::stable_hasher::StableHasher; +use rustc_data_structures::stable_hasher::{Hash128, Hash64, StableHasher}; use rustc_data_structures::sync::{AtomicU32, Lrc, MappedReadGuard, ReadGuard, RwLock}; use std::cmp; use std::hash::Hash; @@ -138,7 +138,7 @@ impl FileLoader for RealFileLoader { pub struct StableSourceFileId { /// A hash of the source file's [`FileName`]. This is hash so that it's size /// is more predictable than if we included the actual [`FileName`] value. - pub file_name_hash: u64, + pub file_name_hash: Hash64, /// The [`CrateNum`] of the crate this source file was originally parsed for. /// We cannot include this information in the hash because at the time @@ -331,7 +331,7 @@ impl SourceMap { &self, filename: FileName, src_hash: SourceFileHash, - name_hash: u128, + name_hash: Hash128, source_len: usize, cnum: CrateNum, file_local_lines: Lock<SourceFileLines>, @@ -483,7 +483,7 @@ impl SourceMap { self.span_to_string(sp, FileNameDisplayPreference::Remapped) } - /// Format the span location suitable for pretty printing anotations with relative line numbers + /// Format the span location suitable for pretty printing annotations with relative line numbers pub fn span_to_relative_line_string(&self, sp: Span, relative_to: Span) -> String { if self.files.borrow().source_files.is_empty() || sp.is_dummy() || relative_to.is_dummy() { return "no-location".to_string(); @@ -777,7 +777,7 @@ impl SourceMap { /// Given a 'Span', tries to tell if it's wrapped by "<>" or "()" /// the algorithm searches if the next character is '>' or ')' after skipping white space - /// then searches the previous charactoer to match '<' or '(' after skipping white space + /// then searches the previous character to match '<' or '(' after skipping white space /// return true if wrapped by '<>' or '()' pub fn span_wrapped_by_angle_or_parentheses(&self, span: Span) -> bool { self.span_to_source(span, |src, start_index, end_index| { diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 6ce0b66ef6a..d6ee7ac34aa 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -204,6 +204,7 @@ symbols! { HashSet, Hasher, Implied, + IndexOutput, Input, Into, IntoDiagnostic, diff --git a/compiler/rustc_span/src/tests.rs b/compiler/rustc_span/src/tests.rs index 5b3915c3338..a242ad6d1d7 100644 --- a/compiler/rustc_span/src/tests.rs +++ b/compiler/rustc_span/src/tests.rs @@ -3,8 +3,12 @@ use super::*; #[test] fn test_lookup_line() { let source = "abcdefghijklm\nabcdefghij\n...".to_owned(); - let sf = - SourceFile::new(FileName::Anon(0), source, BytePos(3), SourceFileHashAlgorithm::Sha256); + let sf = SourceFile::new( + FileName::Anon(Hash64::ZERO), + source, + BytePos(3), + SourceFileHashAlgorithm::Sha256, + ); sf.lines(|lines| assert_eq!(lines, &[BytePos(3), BytePos(17), BytePos(28)])); assert_eq!(sf.lookup_line(BytePos(0)), None); diff --git a/compiler/rustc_symbol_mangling/src/legacy.rs b/compiler/rustc_symbol_mangling/src/legacy.rs index 5cbca81926b..6a0ca06f69c 100644 --- a/compiler/rustc_symbol_mangling/src/legacy.rs +++ b/compiler/rustc_symbol_mangling/src/legacy.rs @@ -1,4 +1,4 @@ -use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{Hash64, HashStable, StableHasher}; use rustc_hir::def_id::CrateNum; use rustc_hir::definitions::{DefPathData, DisambiguatedDefPathData}; use rustc_middle::ty::print::{PrettyPrinter, Print, Printer}; @@ -93,7 +93,7 @@ fn get_symbol_hash<'tcx>( item_type: Ty<'tcx>, instantiating_crate: Option<CrateNum>, -) -> u64 { +) -> Hash64 { let def_id = instance.def_id(); let substs = instance.substs; debug!("get_symbol_hash(def_id={:?}, parameters={:?})", def_id, substs); @@ -138,7 +138,7 @@ fn get_symbol_hash<'tcx>( }); // 64 bits should be enough to avoid collisions. - hasher.finish::<u64>() + hasher.finish::<Hash64>() }) } @@ -176,7 +176,7 @@ impl SymbolPath { } } - fn finish(mut self, hash: u64) -> String { + fn finish(mut self, hash: Hash64) -> String { self.finalize_pending_component(); // E = end name-sequence let _ = write!(self.result, "17h{hash:016x}E"); 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 1a679f32ca5..262e8546a5d 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 @@ -406,7 +406,7 @@ fn encode_ty_name(tcx: TyCtxt<'_>, def_id: DefId) -> String { // Crate disambiguator and name s.push('C'); - s.push_str(&to_disambiguator(tcx.stable_crate_id(def_path.krate).to_u64())); + s.push_str(&to_disambiguator(tcx.stable_crate_id(def_path.krate).as_u64())); let crate_name = tcx.crate_name(def_path.krate).to_string(); let _ = write!(s, "{}{}", crate_name.len(), &crate_name); diff --git a/compiler/rustc_symbol_mangling/src/v0.rs b/compiler/rustc_symbol_mangling/src/v0.rs index ee883285531..2235524129e 100644 --- a/compiler/rustc_symbol_mangling/src/v0.rs +++ b/compiler/rustc_symbol_mangling/src/v0.rs @@ -731,7 +731,7 @@ impl<'tcx> Printer<'tcx> for &mut SymbolMangler<'tcx> { fn path_crate(self, cnum: CrateNum) -> Result<Self::Path, Self::Error> { self.push("C"); let stable_crate_id = self.tcx.def_path_hash(cnum.as_def_id()).stable_crate_id(); - self.push_disambiguator(stable_crate_id.to_u64()); + self.push_disambiguator(stable_crate_id.as_u64()); let name = self.tcx.crate_name(cnum); self.push_ident(name.as_str()); Ok(self) diff --git a/compiler/rustc_target/src/abi/call/avr.rs b/compiler/rustc_target/src/abi/call/avr.rs index e20f01355a4..b01dac8c70d 100644 --- a/compiler/rustc_target/src/abi/call/avr.rs +++ b/compiler/rustc_target/src/abi/call/avr.rs @@ -10,7 +10,7 @@ //! > self-consistent and sensible LLVM IR generation, but does not //! > conform to any particular ABI. //! > -//! > - Doxygen Doxumentation of `clang::DefaultABIInfo` +//! > - Doxygen Documentation of `clang::DefaultABIInfo` //! //! This calling convention may not match AVR-GCC in all cases. //! diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 4e5a821f0f6..3ee3a8ea227 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -2285,13 +2285,13 @@ impl Target { } } } ); - ($key_name:ident, falliable_list) => ( { + ($key_name:ident, fallible_list) => ( { let name = (stringify!($key_name)).replace("_", "-"); obj.remove(&name).and_then(|j| { if let Some(v) = j.as_array() { match v.iter().map(|a| FromStr::from_str(a.as_str().unwrap())).collect() { Ok(l) => { base.$key_name = l }, - // FIXME: `falliable_list` can't re-use the `key!` macro for list + // FIXME: `fallible_list` can't re-use the `key!` macro for list // elements and the error messages from that macro, so it has a bad // generic message instead Err(_) => return Some(Err( @@ -2610,7 +2610,7 @@ impl Target { key!(has_thumb_interworking, bool); key!(debuginfo_kind, DebuginfoKind)?; key!(split_debuginfo, SplitDebuginfo)?; - key!(supported_split_debuginfo, falliable_list)?; + key!(supported_split_debuginfo, fallible_list)?; key!(supported_sanitizers, SanitizerSet)?; key!(default_adjusted_cabi, Option<Abi>)?; key!(generate_arange_section, bool); diff --git a/compiler/rustc_target/src/spec/thumb_base.rs b/compiler/rustc_target/src/spec/thumb_base.rs index 4dcf47fe465..2220b9326c9 100644 --- a/compiler/rustc_target/src/spec/thumb_base.rs +++ b/compiler/rustc_target/src/spec/thumb_base.rs @@ -12,7 +12,7 @@ // // We have opted for these instead of one target per processor (e.g., `cortex-m0`, `cortex-m3`, // etc) because the differences between some processors like the cortex-m0 and cortex-m1 are almost -// non-existent from the POV of codegen so it doesn't make sense to have separate targets for them. +// nonexistent from the POV of codegen so it doesn't make sense to have separate targets for them. // And if differences exist between two processors under the same target, rustc flags can be used to // optimize for one processor or the other. // diff --git a/compiler/rustc_trait_selection/src/solve/assembly/mod.rs b/compiler/rustc_trait_selection/src/solve/assembly/mod.rs index 10d817f75ac..bacb0e32efc 100644 --- a/compiler/rustc_trait_selection/src/solve/assembly/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/assembly/mod.rs @@ -51,7 +51,7 @@ pub(super) enum CandidateSource { BuiltinImpl, /// An assumption from the environment. /// - /// More precicely we've used the `n-th` assumption in the `param_env`. + /// More precisely we've used the `n-th` assumption in the `param_env`. /// /// ## Examples /// @@ -241,7 +241,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { // HACK: `_: Trait` is ambiguous, because it may be satisfied via a builtin rule, // object bound, alias bound, etc. We are unable to determine this until we can at - // least structually resolve the type one layer. + // least structurally resolve the type one layer. if goal.predicate.self_ty().is_ty_var() { return vec![Candidate { source: CandidateSource::BuiltinImpl, diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs index ada868705c7..23cf0f0c724 100644 --- a/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs +++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs @@ -11,12 +11,13 @@ use super::{CanonicalGoal, Certainty, EvalCtxt, Goal}; use crate::solve::canonicalize::{CanonicalizeMode, Canonicalizer}; use crate::solve::{CanonicalResponse, QueryResult, Response}; +use rustc_index::vec::IndexVec; use rustc_infer::infer::canonical::query_response::make_query_region_constraints; use rustc_infer::infer::canonical::CanonicalVarValues; use rustc_infer::infer::canonical::{CanonicalExt, QueryRegionConstraints}; use rustc_middle::traits::query::NoSolution; use rustc_middle::traits::solve::{ExternalConstraints, ExternalConstraintsData}; -use rustc_middle::ty::{self, GenericArgKind}; +use rustc_middle::ty::{self, BoundVar, GenericArgKind}; use rustc_span::DUMMY_SP; use std::iter; use std::ops::Deref; @@ -139,25 +140,25 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { // // We therefore instantiate the existential variable in the canonical response with the // inference variable of the input right away, which is more performant. - let mut opt_values = vec![None; response.variables.len()]; + let mut opt_values = IndexVec::from_elem_n(None, response.variables.len()); for (original_value, result_value) in iter::zip(original_values, var_values.var_values) { match result_value.unpack() { GenericArgKind::Type(t) => { if let &ty::Bound(debruijn, b) = t.kind() { assert_eq!(debruijn, ty::INNERMOST); - opt_values[b.var.index()] = Some(*original_value); + opt_values[b.var] = Some(*original_value); } } GenericArgKind::Lifetime(r) => { if let ty::ReLateBound(debruijn, br) = *r { assert_eq!(debruijn, ty::INNERMOST); - opt_values[br.var.index()] = Some(*original_value); + opt_values[br.var] = Some(*original_value); } } GenericArgKind::Const(c) => { - if let ty::ConstKind::Bound(debrujin, b) = c.kind() { - assert_eq!(debrujin, ty::INNERMOST); - opt_values[b.index()] = Some(*original_value); + if let ty::ConstKind::Bound(debruijn, b) = c.kind() { + assert_eq!(debruijn, ty::INNERMOST); + opt_values[b] = Some(*original_value); } } } @@ -176,11 +177,11 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { // As an optimization we sometimes avoid creating a new inference variable here. // // All new inference variables we create start out in the current universe of the caller. - // This is conceptionally wrong as these inference variables would be able to name + // This is conceptually wrong as these inference variables would be able to name // more placeholders then they should be able to. However the inference variables have // to "come from somewhere", so by equating them with the original values of the caller // later on, we pull them down into their correct universe again. - if let Some(v) = opt_values[index] { + if let Some(v) = opt_values[BoundVar::from_usize(index)] { v } else { self.infcx.instantiate_canonical_var(DUMMY_SP, info, |_| prev_universe) diff --git a/compiler/rustc_trait_selection/src/solve/trait_goals.rs b/compiler/rustc_trait_selection/src/solve/trait_goals.rs index abd11a15ac2..1abcc80d01a 100644 --- a/compiler/rustc_trait_selection/src/solve/trait_goals.rs +++ b/compiler/rustc_trait_selection/src/solve/trait_goals.rs @@ -591,7 +591,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { Some(self.evaluate_added_goals_and_make_canonical_response(Certainty::AMBIGUOUS)) } - // These types cannot be structurally decomposed into constitutent + // These types cannot be structurally decomposed into constituent // types, and therefore have no built-in auto impl. ty::Dynamic(..) | ty::Param(..) diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs index 0352f0f380d..726b08dc7d7 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs @@ -467,7 +467,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } } - self.tcx.sess.delay_span_bug(DUMMY_SP, "expected fullfillment errors") + self.tcx.sess.delay_span_bug(DUMMY_SP, "expected fulfillment errors") } /// Reports that an overflow has occurred and halts compilation. We @@ -2056,7 +2056,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { if candidates.iter().any(|c| matches!(c.similarity, CandidateSimilarity::Exact { .. })) { // If any of the candidates is a perfect match, we don't want to show all of them. // This is particularly relevant for the case of numeric types (as they all have the - // same cathegory). + // same category). candidates.retain(|c| matches!(c.similarity, CandidateSimilarity::Exact { .. })); } candidates 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 fb75ec76729..73207f183a1 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs @@ -1381,7 +1381,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } } - // Issue #104961, we need to add parentheses properly for compond expressions + // Issue #104961, we need to add parentheses properly for compound expressions // for example, `x.starts_with("hi".to_string() + "you")` // should be `x.starts_with(&("hi".to_string() + "you"))` let Some(body_id) = self.tcx.hir().maybe_body_owned_by(obligation.cause.body_id) else { return false; }; diff --git a/compiler/rustc_trait_selection/src/traits/misc.rs b/compiler/rustc_trait_selection/src/traits/misc.rs index af567c07438..63949843aed 100644 --- a/compiler/rustc_trait_selection/src/traits/misc.rs +++ b/compiler/rustc_trait_selection/src/traits/misc.rs @@ -14,7 +14,7 @@ use rustc_span::DUMMY_SP; use super::outlives_bounds::InferCtxtExt; pub enum CopyImplementationError<'tcx> { - InfrigingFields(Vec<(&'tcx ty::FieldDef, Ty<'tcx>, InfringingFieldsReason<'tcx>)>), + InfringingFields(Vec<(&'tcx ty::FieldDef, Ty<'tcx>, InfringingFieldsReason<'tcx>)>), NotAnAdt, HasDestructor, } @@ -125,7 +125,7 @@ pub fn type_allowed_to_implement_copy<'tcx>( } if !infringing.is_empty() { - return Err(CopyImplementationError::InfrigingFields(infringing)); + return Err(CopyImplementationError::InfringingFields(infringing)); } if adt.has_dtor(tcx) { diff --git a/compiler/rustc_trait_selection/src/traits/mod.rs b/compiler/rustc_trait_selection/src/traits/mod.rs index ed82b9c0152..4c9df5d9d0a 100644 --- a/compiler/rustc_trait_selection/src/traits/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/mod.rs @@ -203,7 +203,7 @@ fn do_normalize_predicates<'tcx>( } }; - debug!("do_normalize_predictes: normalized predicates = {:?}", predicates); + debug!("do_normalize_predicates: normalized predicates = {:?}", predicates); // We can use the `elaborated_env` here; the region code only // cares about declarations like `'a: 'b`. diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 6bb53418bea..0fdba524e25 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -888,7 +888,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let c1 = tcx.expand_abstract_consts(c1); let c2 = tcx.expand_abstract_consts(c2); debug!( - "evalaute_predicate_recursively: equating consts:\nc1= {:?}\nc2= {:?}", + "evaluate_predicate_recursively: equating consts:\nc1= {:?}\nc2= {:?}", c1, c2 ); diff --git a/compiler/rustc_ty_utils/src/layout_sanity_check.rs b/compiler/rustc_ty_utils/src/layout_sanity_check.rs index a5311dbd1b7..ed513cb3c7f 100644 --- a/compiler/rustc_ty_utils/src/layout_sanity_check.rs +++ b/compiler/rustc_ty_utils/src/layout_sanity_check.rs @@ -285,7 +285,7 @@ pub(super) fn sanity_check_layout<'tcx>( { // These are never actually accessed anyway, so we can skip the coherence check // for them. They also fail that check, since they have - // `Aggregate`/`Uninhbaited` ABI even when the main type is + // `Aggregate`/`Uninhabited` ABI even when the main type is // `Scalar`/`ScalarPair`. (Note that sometimes, variants with fields have size // 0, and sometimes, variants without fields have non-0 size.) continue; diff --git a/compiler/rustc_ty_utils/src/needs_drop.rs b/compiler/rustc_ty_utils/src/needs_drop.rs index de7fd003176..5f436f7c9fd 100644 --- a/compiler/rustc_ty_utils/src/needs_drop.rs +++ b/compiler/rustc_ty_utils/src/needs_drop.rs @@ -243,7 +243,7 @@ fn drop_tys_helper<'tcx>( } else { let field_tys = adt_def.all_fields().map(|field| { let r = tcx.type_of(field.did).subst(tcx, substs); - debug!("drop_tys_helper: Subst into {:?} with {:?} gettng {:?}", field, substs, r); + debug!("drop_tys_helper: Subst into {:?} with {:?} getting {:?}", field, substs, r); r }); if only_significant { diff --git a/compiler/rustc_type_ir/src/macros.rs b/compiler/rustc_type_ir/src/macros.rs index 6c181039730..8c3cb228322 100644 --- a/compiler/rustc_type_ir/src/macros.rs +++ b/compiler/rustc_type_ir/src/macros.rs @@ -33,144 +33,3 @@ macro_rules! TrivialTypeTraversalImpls { )+ }; } - -macro_rules! EnumTypeTraversalImpl { - (impl<$($p:tt),*> TypeFoldable<$tcx:tt> for $s:path { - $($variants:tt)* - } $(where $($wc:tt)*)*) => { - impl<$($p),*> $crate::fold::TypeFoldable<$tcx> for $s - $(where $($wc)*)* - { - fn try_fold_with<V: $crate::fold::FallibleTypeFolder<$tcx>>( - self, - folder: &mut V, - ) -> ::std::result::Result<Self, V::Error> { - EnumTypeTraversalImpl!(@FoldVariants(self, folder) input($($variants)*) output()) - } - } - }; - - (impl<$($p:tt),*> TypeVisitable<$tcx:tt> for $s:path { - $($variants:tt)* - } $(where $($wc:tt)*)*) => { - impl<$($p),*> $crate::visit::TypeVisitable<$tcx> for $s - $(where $($wc)*)* - { - fn visit_with<V: $crate::visit::TypeVisitor<$tcx>>( - &self, - visitor: &mut V, - ) -> ::std::ops::ControlFlow<V::BreakTy> { - EnumTypeTraversalImpl!(@VisitVariants(self, visitor) input($($variants)*) output()) - } - } - }; - - (@FoldVariants($this:expr, $folder:expr) input() output($($output:tt)*)) => { - Ok(match $this { - $($output)* - }) - }; - - (@FoldVariants($this:expr, $folder:expr) - input( ($variant:path) ( $($variant_arg:ident),* ) , $($input:tt)*) - output( $($output:tt)*) ) => { - EnumTypeTraversalImpl!( - @FoldVariants($this, $folder) - input($($input)*) - output( - $variant ( $($variant_arg),* ) => { - $variant ( - $($crate::fold::TypeFoldable::try_fold_with($variant_arg, $folder)?),* - ) - } - $($output)* - ) - ) - }; - - (@FoldVariants($this:expr, $folder:expr) - input( ($variant:path) { $($variant_arg:ident),* $(,)? } , $($input:tt)*) - output( $($output:tt)*) ) => { - EnumTypeTraversalImpl!( - @FoldVariants($this, $folder) - input($($input)*) - output( - $variant { $($variant_arg),* } => { - $variant { - $($variant_arg: $crate::fold::TypeFoldable::fold_with( - $variant_arg, $folder - )?),* } - } - $($output)* - ) - ) - }; - - (@FoldVariants($this:expr, $folder:expr) - input( ($variant:path), $($input:tt)*) - output( $($output:tt)*) ) => { - EnumTypeTraversalImpl!( - @FoldVariants($this, $folder) - input($($input)*) - output( - $variant => { $variant } - $($output)* - ) - ) - }; - - (@VisitVariants($this:expr, $visitor:expr) input() output($($output:tt)*)) => { - match $this { - $($output)* - } - }; - - (@VisitVariants($this:expr, $visitor:expr) - input( ($variant:path) ( $($variant_arg:ident),* ) , $($input:tt)*) - output( $($output:tt)*) ) => { - EnumTypeTraversalImpl!( - @VisitVariants($this, $visitor) - input($($input)*) - output( - $variant ( $($variant_arg),* ) => { - $($crate::visit::TypeVisitable::visit_with( - $variant_arg, $visitor - )?;)* - ::std::ops::ControlFlow::Continue(()) - } - $($output)* - ) - ) - }; - - (@VisitVariants($this:expr, $visitor:expr) - input( ($variant:path) { $($variant_arg:ident),* $(,)? } , $($input:tt)*) - output( $($output:tt)*) ) => { - EnumTypeTraversalImpl!( - @VisitVariants($this, $visitor) - input($($input)*) - output( - $variant { $($variant_arg),* } => { - $($crate::visit::TypeVisitable::visit_with( - $variant_arg, $visitor - )?;)* - ::std::ops::ControlFlow::Continue(()) - } - $($output)* - ) - ) - }; - - (@VisitVariants($this:expr, $visitor:expr) - input( ($variant:path), $($input:tt)*) - output( $($output:tt)*) ) => { - EnumTypeTraversalImpl!( - @VisitVariants($this, $visitor) - input($($input)*) - output( - $variant => { ::std::ops::ControlFlow::Continue(()) } - $($output)* - ) - ) - }; -} diff --git a/compiler/rustc_type_ir/src/structural_impls.rs b/compiler/rustc_type_ir/src/structural_impls.rs index 3ebe241042f..c90c86b7690 100644 --- a/compiler/rustc_type_ir/src/structural_impls.rs +++ b/compiler/rustc_type_ir/src/structural_impls.rs @@ -70,30 +70,40 @@ impl<I: Interner, A: TypeVisitable<I>, B: TypeVisitable<I>, C: TypeVisitable<I>> } } -EnumTypeTraversalImpl! { - impl<I, T> TypeFoldable<I> for Option<T> { - (Some)(a), - (None), - } where I: Interner, T: TypeFoldable<I> -} -EnumTypeTraversalImpl! { - impl<I, T> TypeVisitable<I> for Option<T> { - (Some)(a), - (None), - } where I: Interner, T: TypeVisitable<I> -} - -EnumTypeTraversalImpl! { - impl<I, T, E> TypeFoldable<I> for Result<T, E> { - (Ok)(a), - (Err)(a), - } where I: Interner, T: TypeFoldable<I>, E: TypeFoldable<I>, -} -EnumTypeTraversalImpl! { - impl<I, T, E> TypeVisitable<I> for Result<T, E> { - (Ok)(a), - (Err)(a), - } where I: Interner, T: TypeVisitable<I>, E: TypeVisitable<I>, +impl<I: Interner, T: TypeFoldable<I>> TypeFoldable<I> for Option<T> { + fn try_fold_with<F: FallibleTypeFolder<I>>(self, folder: &mut F) -> Result<Self, F::Error> { + Ok(match self { + Some(v) => Some(v.try_fold_with(folder)?), + None => None, + }) + } +} + +impl<I: Interner, T: TypeVisitable<I>> TypeVisitable<I> for Option<T> { + fn visit_with<V: TypeVisitor<I>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> { + match self { + Some(v) => v.visit_with(visitor), + None => ControlFlow::Continue(()), + } + } +} + +impl<I: Interner, T: TypeFoldable<I>, E: TypeFoldable<I>> TypeFoldable<I> for Result<T, E> { + fn try_fold_with<F: FallibleTypeFolder<I>>(self, folder: &mut F) -> Result<Self, F::Error> { + Ok(match self { + Ok(v) => Ok(v.try_fold_with(folder)?), + Err(e) => Err(e.try_fold_with(folder)?), + }) + } +} + +impl<I: Interner, T: TypeVisitable<I>, E: TypeVisitable<I>> TypeVisitable<I> for Result<T, E> { + fn visit_with<V: TypeVisitor<I>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> { + match self { + Ok(v) => v.visit_with(visitor), + Err(e) => e.visit_with(visitor), + } + } } impl<I: Interner, T: TypeFoldable<I>> TypeFoldable<I> for Rc<T> { diff --git a/library/core/src/ops/index.rs b/library/core/src/ops/index.rs index 228efb0bc0a..f3754484f6a 100644 --- a/library/core/src/ops/index.rs +++ b/library/core/src/ops/index.rs @@ -59,6 +59,7 @@ pub trait Index<Idx: ?Sized> { /// The returned type after indexing. #[stable(feature = "rust1", since = "1.0.0")] + #[rustc_diagnostic_item = "IndexOutput"] type Output: ?Sized; /// Performs the indexing (`container[index]`) operation. diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs index 839afc57f85..3838c39cc6a 100644 --- a/library/core/src/ptr/const_ptr.rs +++ b/library/core/src/ptr/const_ptr.rs @@ -132,8 +132,8 @@ impl<T: ?Sized> *const T { /// ``` #[unstable(feature = "ptr_to_from_bits", issue = "91126")] #[deprecated( - since = "1.67", - note = "replaced by the `exposed_addr` method, or update your code \ + since = "1.67.0", + note = "replaced by the `expose_addr` method, or update your code \ to follow the strict provenance rules using its APIs" )] #[inline(always)] @@ -161,7 +161,7 @@ impl<T: ?Sized> *const T { /// ``` #[unstable(feature = "ptr_to_from_bits", issue = "91126")] #[deprecated( - since = "1.67", + since = "1.67.0", note = "replaced by the `ptr::from_exposed_addr` function, or update \ your code to follow the strict provenance rules using its APIs" )] diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs index ece5244e9a9..e522b6dc15c 100644 --- a/library/core/src/ptr/mut_ptr.rs +++ b/library/core/src/ptr/mut_ptr.rs @@ -138,8 +138,8 @@ impl<T: ?Sized> *mut T { /// ``` #[unstable(feature = "ptr_to_from_bits", issue = "91126")] #[deprecated( - since = "1.67", - note = "replaced by the `exposed_addr` method, or update your code \ + since = "1.67.0", + note = "replaced by the `expose_addr` method, or update your code \ to follow the strict provenance rules using its APIs" )] #[inline(always)] @@ -167,7 +167,7 @@ impl<T: ?Sized> *mut T { /// ``` #[unstable(feature = "ptr_to_from_bits", issue = "91126")] #[deprecated( - since = "1.67", + since = "1.67.0", note = "replaced by the `ptr::from_exposed_addr_mut` function, or \ update your code to follow the strict provenance rules using its APIs" )] diff --git a/src/bootstrap/bin/main.rs b/src/bootstrap/bin/main.rs index 912d875e445..a80379e85c1 100644 --- a/src/bootstrap/bin/main.rs +++ b/src/bootstrap/bin/main.rs @@ -16,9 +16,11 @@ fn main() { let config = Config::parse(&args); #[cfg(all(any(unix, windows), not(target_os = "solaris")))] + let mut build_lock; + #[cfg(all(any(unix, windows), not(target_os = "solaris")))] + let _build_lock_guard; + #[cfg(all(any(unix, windows), not(target_os = "solaris")))] { - let mut build_lock; - let _build_lock_guard; let path = config.out.join("lock"); build_lock = fd_lock::RwLock::new(t!(std::fs::File::create(&path))); _build_lock_guard = match build_lock.try_write() { diff --git a/src/bootstrap/bin/rustc.rs b/src/bootstrap/bin/rustc.rs index 040fec3615b..dd86634b47c 100644 --- a/src/bootstrap/bin/rustc.rs +++ b/src/bootstrap/bin/rustc.rs @@ -150,7 +150,7 @@ fn main() { // allow the `rustc_private` feature to link to other unstable crates // also in the sysroot. We also do this for host crates, since those // may be proc macros, in which case we might ship them. - if env::var_os("RUSTC_FORCE_UNSTABLE").is_some() && (stage != "0" || target.is_some()) { + if env::var_os("RUSTC_FORCE_UNSTABLE").is_some() { cmd.arg("-Z").arg("force-unstable-if-unmarked"); } diff --git a/src/bootstrap/bolt.rs b/src/bootstrap/bolt.rs index 10e6d2e7d6d..5384181ea68 100644 --- a/src/bootstrap/bolt.rs +++ b/src/bootstrap/bolt.rs @@ -40,7 +40,7 @@ pub fn optimize_with_bolt(path: &Path, profile_path: &Path, output_path: &Path) // Reorder functions within the binary .arg("-reorder-functions=hfsort+") // Split function code into hot and code regions - .arg("-split-functions=2") + .arg("-split-functions") // Split as many basic blocks as possible .arg("-split-all-cold") // Move jump tables to a separate section diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs index e959ea06f8b..9666874d0fe 100644 --- a/src/bootstrap/builder.rs +++ b/src/bootstrap/builder.rs @@ -1008,9 +1008,24 @@ impl<'a> Builder<'a> { // Avoid deleting the rustlib/ directory we just copied // (in `impl Step for Sysroot`). if !builder.download_rustc() { + builder.verbose(&format!( + "Removing sysroot {} to avoid caching bugs", + sysroot.display() + )); let _ = fs::remove_dir_all(&sysroot); t!(fs::create_dir_all(&sysroot)); } + + if self.compiler.stage == 0 { + // The stage 0 compiler for the build triple is always pre-built. + // Ensure that `libLLVM.so` ends up in the target libdir, so that ui-fulldeps tests can use it when run. + dist::maybe_install_llvm_target( + builder, + self.compiler.host, + &builder.sysroot(self.compiler), + ); + } + INTERNER.intern_path(sysroot) } } @@ -2030,7 +2045,7 @@ impl<'a> Builder<'a> { } #[cfg(feature = "build-metrics")] - self.metrics.enter_step(&step); + self.metrics.enter_step(&step, self); let (out, dur) = { let start = Instant::now(); @@ -2056,7 +2071,7 @@ impl<'a> Builder<'a> { } #[cfg(feature = "build-metrics")] - self.metrics.exit_step(); + self.metrics.exit_step(self); { let mut stack = self.stack.borrow_mut(); diff --git a/src/bootstrap/check.rs b/src/bootstrap/check.rs index fcaa698317d..44efc502e39 100644 --- a/src/bootstrap/check.rs +++ b/src/bootstrap/check.rs @@ -271,17 +271,9 @@ impl Step for Rustc { false, ); - // HACK: This avoids putting the newly built artifacts in the sysroot if we're using - // `download-rustc`, to avoid "multiple candidates for `rmeta`" errors. Technically, that's - // not quite right: people can set `download-rustc = true` to download even if there are - // changes to the compiler, and in that case ideally we would put the *new* artifacts in the - // sysroot, in case there are API changes that should be used by tools. In practice, - // though, that should be very uncommon, and people can still disable download-rustc. - if !builder.download_rustc() { - let libdir = builder.sysroot_libdir(compiler, target); - let hostdir = builder.sysroot_libdir(compiler, compiler.host); - add_to_sysroot(&builder, &libdir, &hostdir, &librustc_stamp(builder, compiler, target)); - } + let libdir = builder.sysroot_libdir(compiler, target); + let hostdir = builder.sysroot_libdir(compiler, compiler.host); + add_to_sysroot(&builder, &libdir, &hostdir, &librustc_stamp(builder, compiler, target)); } } diff --git a/src/bootstrap/compile.rs b/src/bootstrap/compile.rs index 4a4e7adcbf3..8af5927e27f 100644 --- a/src/bootstrap/compile.rs +++ b/src/bootstrap/compile.rs @@ -9,6 +9,7 @@ use std::borrow::Cow; use std::collections::HashSet; use std::env; +use std::ffi::OsStr; use std::fs; use std::io::prelude::*; use std::io::BufReader; @@ -652,8 +653,19 @@ impl Step for Rustc { // so its artifacts can't be reused. if builder.download_rustc() && compiler.stage != 0 { // Copy the existing artifacts instead of rebuilding them. - // NOTE: this path is only taken for tools linking to rustc-dev. - builder.ensure(Sysroot { compiler }); + // NOTE: this path is only taken for tools linking to rustc-dev (including ui-fulldeps tests). + let sysroot = builder.ensure(Sysroot { compiler }); + + let ci_rustc_dir = builder.out.join(&*builder.build.build.triple).join("ci-rustc"); + for file in builder.config.rustc_dev_contents() { + let src = ci_rustc_dir.join(&file); + let dst = sysroot.join(file); + if src.is_dir() { + t!(fs::create_dir_all(dst)); + } else { + builder.copy(&src, &dst); + } + } return; } @@ -1260,6 +1272,7 @@ impl Step for Sysroot { }; let sysroot = sysroot_dir(compiler.stage); + builder.verbose(&format!("Removing sysroot {} to avoid caching bugs", sysroot.display())); let _ = fs::remove_dir_all(&sysroot); t!(fs::create_dir_all(&sysroot)); @@ -1281,7 +1294,40 @@ impl Step for Sysroot { } // Copy the compiler into the correct sysroot. - builder.cp_r(&builder.ci_rustc_dir(builder.build.build), &sysroot); + // NOTE(#108767): We intentionally don't copy `rustc-dev` artifacts until they're requested with `builder.ensure(Rustc)`. + // This fixes an issue where we'd have multiple copies of libc in the sysroot with no way to tell which to load. + // There are a few quirks of bootstrap that interact to make this reliable: + // 1. The order `Step`s are run is hard-coded in `builder.rs` and not configurable. This + // avoids e.g. reordering `test::UiFulldeps` before `test::Ui` and causing the latter to + // fail because of duplicate metadata. + // 2. The sysroot is deleted and recreated between each invocation, so running `x test + // ui-fulldeps && x test ui` can't cause failures. + let mut filtered_files = Vec::new(); + // Don't trim directories or files that aren't loaded per-target; they can't cause conflicts. + let suffix = format!("lib/rustlib/{}/lib", compiler.host); + for path in builder.config.rustc_dev_contents() { + let path = Path::new(&path); + if path.parent().map_or(false, |parent| parent.ends_with(&suffix)) { + filtered_files.push(path.file_name().unwrap().to_owned()); + } + } + + let filtered_extensions = [OsStr::new("rmeta"), OsStr::new("rlib"), OsStr::new("so")]; + let ci_rustc_dir = builder.ci_rustc_dir(builder.config.build); + builder.cp_filtered(&ci_rustc_dir, &sysroot, &|path| { + if path.extension().map_or(true, |ext| !filtered_extensions.contains(&ext)) { + return true; + } + if !path.parent().map_or(true, |p| p.ends_with(&suffix)) { + return true; + } + if !filtered_files.iter().all(|f| f != path.file_name().unwrap()) { + builder.verbose_than(1, &format!("ignoring {}", path.display())); + false + } else { + true + } + }); return INTERNER.intern_path(sysroot); } diff --git a/src/bootstrap/download-ci-llvm-stamp b/src/bootstrap/download-ci-llvm-stamp index 36f9aaa595d..4111b7cc0d3 100644 --- a/src/bootstrap/download-ci-llvm-stamp +++ b/src/bootstrap/download-ci-llvm-stamp @@ -1,4 +1,4 @@ Change this file to make users of the `download-ci-llvm` configuration download a new version of LLVM from CI, even if the LLVM submodule hasn’t changed. -Last change is for: https://github.com/rust-lang/rust/pull/109373 +Last change is for: https://github.com/rust-lang/rust/pull/96971 diff --git a/src/bootstrap/download.rs b/src/bootstrap/download.rs index 24251556584..133cda639d9 100644 --- a/src/bootstrap/download.rs +++ b/src/bootstrap/download.rs @@ -2,7 +2,7 @@ use std::{ env, ffi::{OsStr, OsString}, fs::{self, File}, - io::{BufRead, BufReader, ErrorKind}, + io::{BufRead, BufReader, BufWriter, ErrorKind, Write}, path::{Path, PathBuf}, process::{Command, Stdio}, }; @@ -262,10 +262,20 @@ impl Config { let directory_prefix = Path::new(Path::new(uncompressed_filename).file_stem().unwrap()); // decompress the file - let data = t!(File::open(tarball)); + let data = t!(File::open(tarball), format!("file {} not found", tarball.display())); let decompressor = XzDecoder::new(BufReader::new(data)); let mut tar = tar::Archive::new(decompressor); + + // `compile::Sysroot` needs to know the contents of the `rustc-dev` tarball to avoid adding + // it to the sysroot unless it was explicitly requested. But parsing the 100 MB tarball is slow. + // Cache the entries when we extract it so we only have to read it once. + let mut recorded_entries = if dst.ends_with("ci-rustc") && pattern == "rustc-dev" { + Some(BufWriter::new(t!(File::create(dst.join(".rustc-dev-contents"))))) + } else { + None + }; + for member in t!(tar.entries()) { let mut member = t!(member); let original_path = t!(member.path()).into_owned(); @@ -283,13 +293,19 @@ impl Config { if !t!(member.unpack_in(dst)) { panic!("path traversal attack ??"); } + if let Some(record) = &mut recorded_entries { + t!(writeln!(record, "{}", short_path.to_str().unwrap())); + } let src_path = dst.join(original_path); if src_path.is_dir() && dst_path.exists() { continue; } t!(fs::rename(src_path, dst_path)); } - t!(fs::remove_dir_all(dst.join(directory_prefix))); + let dst_dir = dst.join(directory_prefix); + if dst_dir.exists() { + t!(fs::remove_dir_all(&dst_dir), format!("failed to remove {}", dst_dir.display())); + } } /// Returns whether the SHA256 checksum of `path` matches `expected`. @@ -365,6 +381,13 @@ impl Config { Some(rustfmt_path) } + pub(crate) fn rustc_dev_contents(&self) -> Vec<String> { + assert!(self.download_rustc()); + let ci_rustc_dir = self.out.join(&*self.build.triple).join("ci-rustc"); + let rustc_dev_contents_file = t!(File::open(ci_rustc_dir.join(".rustc-dev-contents"))); + t!(BufReader::new(rustc_dev_contents_file).lines().collect()) + } + pub(crate) fn download_ci_rustc(&self, commit: &str) { self.verbose(&format!("using downloaded stage2 artifacts from CI (commit {commit})")); diff --git a/src/bootstrap/metrics.rs b/src/bootstrap/metrics.rs index 82b123ec8a5..e19d56ccd6a 100644 --- a/src/bootstrap/metrics.rs +++ b/src/bootstrap/metrics.rs @@ -4,7 +4,7 @@ //! As this module requires additional dependencies not present during local builds, it's cfg'd //! away whenever the `build.metrics` config option is not set to `true`. -use crate::builder::Step; +use crate::builder::{Builder, Step}; use crate::util::t; use crate::Build; use serde_derive::{Deserialize, Serialize}; @@ -33,7 +33,12 @@ impl BuildMetrics { BuildMetrics { state } } - pub(crate) fn enter_step<S: Step>(&self, step: &S) { + pub(crate) fn enter_step<S: Step>(&self, step: &S, builder: &Builder<'_>) { + // Do not record dry runs, as they'd be duplicates of the actual steps. + if builder.config.dry_run() { + return; + } + let mut state = self.state.borrow_mut(); // Consider all the stats gathered so far as the parent's. @@ -56,7 +61,12 @@ impl BuildMetrics { }); } - pub(crate) fn exit_step(&self) { + pub(crate) fn exit_step(&self, builder: &Builder<'_>) { + // Do not record dry runs, as they'd be duplicates of the actual steps. + if builder.config.dry_run() { + return; + } + let mut state = self.state.borrow_mut(); self.collect_stats(&mut *state); @@ -74,7 +84,12 @@ impl BuildMetrics { } } - pub(crate) fn record_test(&self, name: &str, outcome: TestOutcome) { + pub(crate) fn record_test(&self, name: &str, outcome: TestOutcome, builder: &Builder<'_>) { + // Do not record dry runs, as they'd be duplicates of the actual steps. + if builder.config.dry_run() { + return; + } + let mut state = self.state.borrow_mut(); state .running_steps diff --git a/src/bootstrap/render_tests.rs b/src/bootstrap/render_tests.rs index 19019ad2c08..a56db9cccfe 100644 --- a/src/bootstrap/render_tests.rs +++ b/src/bootstrap/render_tests.rs @@ -124,6 +124,7 @@ impl<'a> Renderer<'a> { ignore_reason: reason.map(|s| s.to_string()), }, }, + self.builder, ); if self.builder.config.verbose_tests { diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs index aedf1ecab13..ccf83974b8c 100644 --- a/src/bootstrap/test.rs +++ b/src/bootstrap/test.rs @@ -1448,7 +1448,7 @@ note: if you're sure you want to do this, please open an issue as to why. In the crate::detail_exit(1); } - let compiler = self.compiler; + let mut compiler = self.compiler; let target = self.target; let mode = self.mode; let suite = self.suite; @@ -1461,15 +1461,28 @@ note: if you're sure you want to do this, please open an issue as to why. In the return; } - if suite == "debuginfo" { - builder - .ensure(dist::DebuggerScripts { sysroot: builder.sysroot(compiler), host: target }); - } + // Support stage 1 ui-fulldeps. This is somewhat complicated: ui-fulldeps tests for the most + // part test the *API* of the compiler, not how it compiles a given file. As a result, we + // can run them against the stage 1 sources as long as we build them with the stage 0 + // bootstrap compiler. + // NOTE: Only stage 1 is special cased because we need the rustc_private artifacts to match the + // running compiler in stage 2 when plugins run. + let stage_id = if suite == "ui-fulldeps" && compiler.stage == 1 { + compiler = builder.compiler(compiler.stage - 1, target); + format!("stage{}-{}", compiler.stage + 1, target) + } else { + format!("stage{}-{}", compiler.stage, target) + }; if suite.ends_with("fulldeps") { builder.ensure(compile::Rustc::new(compiler, target)); } + if suite == "debuginfo" { + builder + .ensure(dist::DebuggerScripts { sysroot: builder.sysroot(compiler), host: target }); + } + builder.ensure(compile::Std::new(compiler, target)); // ensure that `libproc_macro` is available on the host. builder.ensure(compile::Std::new(compiler, compiler.host)); @@ -1528,7 +1541,7 @@ note: if you're sure you want to do this, please open an issue as to why. In the cmd.arg("--src-base").arg(builder.src.join("tests").join(suite)); cmd.arg("--build-base").arg(testdir(builder, compiler.host).join(suite)); cmd.arg("--sysroot-base").arg(builder.sysroot(compiler)); - cmd.arg("--stage-id").arg(format!("stage{}-{}", compiler.stage, target)); + cmd.arg("--stage-id").arg(stage_id); cmd.arg("--suite").arg(suite); cmd.arg("--mode").arg(mode); cmd.arg("--target").arg(target.rustc_target_arg()); @@ -1804,6 +1817,10 @@ note: if you're sure you want to do this, please open an issue as to why. In the cmd.arg("--channel").arg(&builder.config.channel); + if !builder.config.omit_git_hash { + cmd.arg("--git-hash"); + } + if let Some(commit) = builder.config.download_rustc_commit() { cmd.env("FAKE_DOWNLOAD_RUSTC_PREFIX", format!("/rustc/{commit}")); } diff --git a/src/bootstrap/tool.rs b/src/bootstrap/tool.rs index c732fd7e833..79fab00efe7 100644 --- a/src/bootstrap/tool.rs +++ b/src/bootstrap/tool.rs @@ -194,6 +194,12 @@ pub fn prepare_tool_cargo( cargo.env("CFG_VERSION", builder.rust_version()); cargo.env("CFG_RELEASE_NUM", &builder.version); cargo.env("DOC_RUST_LANG_ORG_CHANNEL", builder.doc_rust_lang_org_channel()); + if let Some(ref ver_date) = builder.rust_info().commit_date() { + cargo.env("CFG_VER_DATE", ver_date); + } + if let Some(ref ver_hash) = builder.rust_info().sha() { + cargo.env("CFG_VER_HASH", ver_hash); + } let info = GitInfo::new(builder.config.omit_git_hash, &dir); if let Some(sha) = info.sha() { diff --git a/src/ci/docker/host-x86_64/dist-x86_64-illumos/Dockerfile b/src/ci/docker/host-x86_64/dist-x86_64-illumos/Dockerfile index 2089bf38716..55fefd2b725 100644 --- a/src/ci/docker/host-x86_64/dist-x86_64-illumos/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-x86_64-illumos/Dockerfile @@ -6,12 +6,13 @@ RUN sed -i 's/^# deb-src/deb-src/' /etc/apt/sources.list COPY scripts/cross-apt-packages.sh /tmp/ RUN bash /tmp/cross-apt-packages.sh -# Required for cross-build gcc +# Required for cross-build gcc, and we install python2 to test general compatibility. RUN apt-get update && \ apt-get install -y --no-install-recommends \ libgmp-dev \ libmpfr-dev \ libmpc-dev \ + python2.7 \ && rm -rf /var/lib/apt/lists/* COPY scripts/illumos-toolchain.sh /tmp/ @@ -35,4 +36,4 @@ ENV \ ENV HOSTS=x86_64-unknown-illumos ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs -ENV SCRIPT python3 ../x.py dist --host $HOSTS --target $HOSTS +ENV SCRIPT python2.7 ../x.py dist --host $HOSTS --target $HOSTS diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-15/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-15/Dockerfile index fb5037e3b97..c471843b853 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-15/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-15/Dockerfile @@ -2,7 +2,6 @@ FROM ubuntu:22.10 ARG DEBIAN_FRONTEND=noninteractive -# NOTE: intentionally installs both python2 and python3 so we can test support for both. RUN apt-get update && apt-get install -y --no-install-recommends \ g++ \ gcc-multilib \ @@ -11,7 +10,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ file \ curl \ ca-certificates \ - python2.7 \ python3 \ git \ cmake \ @@ -63,6 +61,4 @@ ENV SCRIPT ../x.py --stage 2 test --exclude src/tools/tidy && \ # work. # ../x.ps1 --stage 2 test tests/ui --pass=check \ - --host='' --target=i686-unknown-linux-gnu && \ - # Run tidy at the very end, after all the other tests. - python2.7 ../x.py --stage 2 test src/tools/tidy + --host='' --target=i686-unknown-linux-gnu diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-16/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-16/Dockerfile new file mode 100644 index 00000000000..7c75d0df590 --- /dev/null +++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-16/Dockerfile @@ -0,0 +1,64 @@ +FROM ubuntu:23.04 + +ARG DEBIAN_FRONTEND=noninteractive + +RUN apt-get update && apt-get install -y --no-install-recommends \ + g++ \ + gcc-multilib \ + make \ + ninja-build \ + file \ + curl \ + ca-certificates \ + python3 \ + git \ + cmake \ + sudo \ + gdb \ + llvm-16-tools \ + llvm-16-dev \ + libedit-dev \ + libssl-dev \ + pkg-config \ + zlib1g-dev \ + xz-utils \ + nodejs \ + mingw-w64 \ + && rm -rf /var/lib/apt/lists/* + +# Install powershell (universal package) so we can test x.ps1 on Linux +RUN curl -sL "https://github.com/PowerShell/PowerShell/releases/download/v7.3.1/powershell_7.3.1-1.deb_amd64.deb" > powershell.deb && \ + dpkg -i powershell.deb && \ + rm -f powershell.deb + +COPY scripts/sccache.sh /scripts/ +RUN sh /scripts/sccache.sh + +# We are disabling CI LLVM since this builder is intentionally using a host +# LLVM, rather than the typical src/llvm-project LLVM. +ENV NO_DOWNLOAD_CI_LLVM 1 + +# Using llvm-link-shared due to libffi issues -- see #34486 +ENV RUST_CONFIGURE_ARGS \ + --build=x86_64-unknown-linux-gnu \ + --llvm-root=/usr/lib/llvm-16 \ + --enable-llvm-link-shared \ + --set rust.thin-lto-import-instr-limit=10 + +# NOTE: intentionally uses all of `x.py`, `x`, and `x.ps1` to make sure they all work on Linux. +ENV SCRIPT ../x.py --stage 2 test --exclude src/tools/tidy && \ + # Run the `mir-opt` tests again but this time for a 32-bit target. + # This enforces that tests using `// EMIT_MIR_FOR_EACH_BIT_WIDTH` have + # both 32-bit and 64-bit outputs updated by the PR author, before + # the PR is approved and tested for merging. + # It will also detect tests lacking `// EMIT_MIR_FOR_EACH_BIT_WIDTH`, + # despite having different output on 32-bit vs 64-bit targets. + ../x --stage 2 test tests/mir-opt \ + --host='' --target=i686-unknown-linux-gnu && \ + # Run the UI test suite again, but in `--pass=check` mode + # + # This is intended to make sure that both `--pass=check` continues to + # work. + # + ../x.ps1 --stage 2 test tests/ui --pass=check \ + --host='' --target=i686-unknown-linux-gnu diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml index dbf4be4be24..8c7798aad8b 100644 --- a/src/ci/github-actions/ci.yml +++ b/src/ci/github-actions/ci.yml @@ -457,6 +457,11 @@ jobs: - name: x86_64-gnu-distcheck <<: *job-linux-8c + - name: x86_64-gnu-llvm-16 + env: + RUST_BACKTRACE: 1 + <<: *job-linux-8c + - name: x86_64-gnu-llvm-15 env: RUST_BACKTRACE: 1 diff --git a/src/doc/rustc/src/codegen-options/index.md b/src/doc/rustc/src/codegen-options/index.md index 62347f169a5..d7c6a884fc8 100644 --- a/src/doc/rustc/src/codegen-options/index.md +++ b/src/doc/rustc/src/codegen-options/index.md @@ -84,8 +84,8 @@ Note: The [`-g` flag][option-g-debug] is an alias for `-C debuginfo=2`. This flag controls whether or not the linker includes its default libraries. It takes one of the following values: -* `y`, `yes`, `on`, `true` or no value: include default libraries (the default). -* `n`, `no`, `off` or `false`: exclude default libraries. +* `y`, `yes`, `on`, `true`: include default libraries. +* `n`, `no`, `off` or `false` or no value: exclude default libraries (the default). For example, for gcc flavor linkers, this issues the `-nodefaultlibs` flag to the linker. diff --git a/src/doc/rustdoc/src/write-documentation/linking-to-items-by-name.md b/src/doc/rustdoc/src/write-documentation/linking-to-items-by-name.md index eb2285ef906..72157b5cd9b 100644 --- a/src/doc/rustdoc/src/write-documentation/linking-to-items-by-name.md +++ b/src/doc/rustdoc/src/write-documentation/linking-to-items-by-name.md @@ -88,13 +88,16 @@ fn Foo() {} ``` These prefixes will be stripped when displayed in the documentation, so `[struct@Foo]` will be -rendered as `Foo`. +rendered as `Foo`. The following prefixes are available: `struct`, `enum`, `trait`, `union`, +`mod`, `module`, `const`, `constant`, `fn`, `function`, `method`, `derive`, `type`, `value`, +`macro`, `prim` or `primitive`. You can also disambiguate for functions by adding `()` after the function name, -or for macros by adding `!` after the macro name: +or for macros by adding `!` after the macro name. The macro `!` can be followed by `()`, `{}`, +or `[]`. Example: ```rust -/// This is different from [`foo!`] +/// This is different from [`foo!()`]. fn foo() {} /// This is different from [`foo()`] diff --git a/src/librustdoc/passes/collect_intra_doc_links.rs b/src/librustdoc/passes/collect_intra_doc_links.rs index a835bd2de3b..33e80df9ed7 100644 --- a/src/librustdoc/passes/collect_intra_doc_links.rs +++ b/src/librustdoc/passes/collect_intra_doc_links.rs @@ -1419,6 +1419,7 @@ impl Disambiguator { if let Some(idx) = link.find('@') { let (prefix, rest) = link.split_at(idx); let d = match prefix { + // If you update this list, please also update the relevant rustdoc book section! "struct" => Kind(DefKind::Struct), "enum" => Kind(DefKind::Enum), "trait" => Kind(DefKind::Trait), @@ -1437,6 +1438,7 @@ impl Disambiguator { Ok(Some((d, &rest[1..], &rest[1..]))) } else { let suffixes = [ + // If you update this list, please also update the relevant rustdoc book section! ("!()", DefKind::Macro(MacroKind::Bang)), ("!{}", DefKind::Macro(MacroKind::Bang)), ("![]", DefKind::Macro(MacroKind::Bang)), diff --git a/src/librustdoc/visit_ast.rs b/src/librustdoc/visit_ast.rs index f54b70b417d..a6089680fae 100644 --- a/src/librustdoc/visit_ast.rs +++ b/src/librustdoc/visit_ast.rs @@ -10,6 +10,7 @@ use rustc_hir::{Node, CRATE_HIR_ID}; use rustc_middle::hir::nested_filter; use rustc_middle::ty::TyCtxt; use rustc_span::def_id::{CRATE_DEF_ID, LOCAL_CRATE}; +use rustc_span::hygiene::MacroKind; use rustc_span::symbol::{kw, sym, Symbol}; use rustc_span::Span; @@ -87,6 +88,7 @@ pub(crate) struct RustdocVisitor<'a, 'tcx> { inside_public_path: bool, exact_paths: DefIdMap<Vec<Symbol>>, modules: Vec<Module<'tcx>>, + is_importable_from_parent: bool, } impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { @@ -107,6 +109,7 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { inside_public_path: true, exact_paths: Default::default(), modules: vec![om], + is_importable_from_parent: true, } } @@ -319,11 +322,23 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { renamed: Option<Symbol>, parent_id: Option<LocalDefId>, ) { - self.modules - .last_mut() - .unwrap() - .items - .insert((item.owner_id.def_id, renamed), (item, renamed, parent_id)); + if self.is_importable_from_parent + // If we're inside an item, only impl blocks and `macro_rules!` with the `macro_export` + // attribute can still be visible. + || match item.kind { + hir::ItemKind::Impl(..) => true, + hir::ItemKind::Macro(_, MacroKind::Bang) => { + self.cx.tcx.has_attr(item.owner_id.def_id, sym::macro_export) + } + _ => false, + } + { + self.modules + .last_mut() + .unwrap() + .items + .insert((item.owner_id.def_id, renamed), (item, renamed, parent_id)); + } } fn visit_item_inner( @@ -331,7 +346,7 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { item: &'tcx hir::Item<'_>, renamed: Option<Symbol>, import_id: Option<LocalDefId>, - ) -> bool { + ) { debug!("visiting item {:?}", item); let name = renamed.unwrap_or(item.ident.name); let tcx = self.cx.tcx; @@ -448,7 +463,6 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { } } } - true } fn visit_foreign_item_inner( @@ -485,9 +499,23 @@ impl<'a, 'tcx> Visitor<'tcx> for RustdocVisitor<'a, 'tcx> { } fn visit_item(&mut self, i: &'tcx hir::Item<'tcx>) { - if self.visit_item_inner(i, None, None) { - walk_item(self, i); - } + self.visit_item_inner(i, None, None); + let new_value = if self.is_importable_from_parent { + matches!( + i.kind, + hir::ItemKind::Mod(..) + | hir::ItemKind::ForeignMod { .. } + | hir::ItemKind::Impl(..) + | hir::ItemKind::Trait(..) + ) + } else { + // Whatever the context, if it's an impl block, the items inside it can be used so they + // should be visible. + matches!(i.kind, hir::ItemKind::Impl(..)) + }; + let prev = mem::replace(&mut self.is_importable_from_parent, new_value); + walk_item(self, i); + self.is_importable_from_parent = prev; } fn visit_mod(&mut self, _: &hir::Mod<'tcx>, _: Span, _: hir::HirId) { diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs index d2f494942cf..7166d99d792 100644 --- a/src/tools/compiletest/src/common.rs +++ b/src/tools/compiletest/src/common.rs @@ -303,6 +303,9 @@ pub struct Config { /// The current Rust channel pub channel: String, + /// Whether adding git commit information such as the commit hash has been enabled for building + pub git_hash: bool, + /// The default Rust edition pub edition: Option<String>, @@ -419,7 +422,9 @@ pub struct TargetCfgs { impl TargetCfgs { fn new(config: &Config) -> TargetCfgs { - let targets: HashMap<String, TargetCfg> = if config.stage_id.starts_with("stage0-") { + let targets: HashMap<String, TargetCfg> = if config.stage_id.starts_with("stage0-") + || (config.suite == "ui-fulldeps" && config.stage_id.starts_with("stage1-")) + { // #[cfg(bootstrap)] // Needed only for one cycle, remove during the bootstrap bump. Self::collect_all_slow(config) diff --git a/src/tools/compiletest/src/header/needs.rs b/src/tools/compiletest/src/header/needs.rs index 35d6179abaa..81179480ed8 100644 --- a/src/tools/compiletest/src/header/needs.rs +++ b/src/tools/compiletest/src/header/needs.rs @@ -115,6 +115,11 @@ pub(super) fn handle_needs( condition: cache.x86_64_dlltool, ignore_reason: "ignored when dlltool for x86_64 is not present", }, + Need { + name: "needs-git-hash", + condition: config.git_hash, + ignore_reason: "ignored when git hashes have been omitted for building", + }, ]; let (name, comment) = match ln.split_once([':', ' ']) { diff --git a/src/tools/compiletest/src/header/tests.rs b/src/tools/compiletest/src/header/tests.rs index 9af7bd5e201..362fba11697 100644 --- a/src/tools/compiletest/src/header/tests.rs +++ b/src/tools/compiletest/src/header/tests.rs @@ -252,6 +252,16 @@ fn debugger() { } #[test] +fn git_hash() { + let mut config = config(); + config.git_hash = false; + assert!(check_ignore(&config, "// needs-git-hash")); + + config.git_hash = true; + assert!(!check_ignore(&config, "// needs-git-hash")); +} + +#[test] fn sanitizers() { let mut config = config(); diff --git a/src/tools/compiletest/src/main.rs b/src/tools/compiletest/src/main.rs index 4a2b9de8aee..c4bef998f31 100644 --- a/src/tools/compiletest/src/main.rs +++ b/src/tools/compiletest/src/main.rs @@ -159,6 +159,7 @@ pub fn parse_config(args: Vec<String>) -> Config { .optflag("", "nocapture", "") .optflag("h", "help", "show this message") .reqopt("", "channel", "current Rust channel", "CHANNEL") + .optflag("", "git-hash", "run tests which rely on commit version being compiled into the binaries") .optopt("", "edition", "default Rust edition", "EDITION"); let (argv0, args_) = args.split_first().unwrap(); @@ -302,6 +303,7 @@ pub fn parse_config(args: Vec<String>) -> Config { rustfix_coverage: matches.opt_present("rustfix-coverage"), has_tidy, channel: matches.opt_str("channel").unwrap(), + git_hash: matches.opt_present("git-hash"), edition: matches.opt_str("edition"), cc: matches.opt_str("cc").unwrap(), diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs index 0fa5c54ae8e..1a4e9b58383 100644 --- a/src/tools/compiletest/src/runtest.rs +++ b/src/tools/compiletest/src/runtest.rs @@ -1900,6 +1900,9 @@ impl<'test> TestCx<'test> { // Use a single thread for efficiency and a deterministic error message order rustc.arg("-Zthreads=1"); + // In stage 0, make sure we use `stage0-sysroot` instead of the bootstrap sysroot. + rustc.arg("--sysroot").arg(&self.config.sysroot_base); + // Optionally prevent default --target if specified in test compile-flags. let custom_target = self.props.compile_flags.iter().any(|x| x.starts_with("--target")); diff --git a/src/tools/tidy/src/ui_tests.rs b/src/tools/tidy/src/ui_tests.rs index 29664c854c8..b1385edf13e 100644 --- a/src/tools/tidy/src/ui_tests.rs +++ b/src/tools/tidy/src/ui_tests.rs @@ -9,7 +9,7 @@ use std::path::{Path, PathBuf}; // FIXME: The following limits should be reduced eventually. const ENTRY_LIMIT: usize = 885; -const ROOT_ENTRY_LIMIT: usize = 891; +const ROOT_ENTRY_LIMIT: usize = 894; const ISSUES_ENTRY_LIMIT: usize = 1977; fn check_entries(tests_path: &Path, bad: &mut bool) { diff --git a/tests/codegen/align-fn.rs b/tests/codegen/align-fn.rs index c5886cf2808..f3cf614e185 100644 --- a/tests/codegen/align-fn.rs +++ b/tests/codegen/align-fn.rs @@ -7,3 +7,43 @@ #[no_mangle] #[repr(align(16))] pub fn fn_align() {} + +pub struct A; + +impl A { + // CHECK: align 16 + #[no_mangle] + #[repr(align(16))] + pub fn method_align(self) {} + + // CHECK: align 16 + #[no_mangle] + #[repr(align(16))] + pub fn associated_fn() {} +} + +trait T: Sized { + fn trait_fn() {} + + // CHECK: align 32 + #[repr(align(32))] + fn trait_method(self) {} +} + +impl T for A { + // CHECK: align 16 + #[no_mangle] + #[repr(align(16))] + fn trait_fn() {} + + // CHECK: align 16 + #[no_mangle] + #[repr(align(16))] + fn trait_method(self) {} +} + +impl T for () {} + +pub fn foo() { + ().trait_method(); +} diff --git a/tests/codegen/optimize-attr-1.rs b/tests/codegen/optimize-attr-1.rs index 1d1f0a38657..d95ba853030 100644 --- a/tests/codegen/optimize-attr-1.rs +++ b/tests/codegen/optimize-attr-1.rs @@ -9,7 +9,7 @@ // CHECK-LABEL: define{{.*}}i32 @nothing // CHECK-SAME: [[NOTHING_ATTRS:#[0-9]+]] // SIZE-OPT: ret i32 4 -// SPEEC-OPT: ret i32 4 +// SPEED-OPT: ret i32 4 #[no_mangle] pub fn nothing() -> i32 { 2 + 2 diff --git a/tests/codegen/option-as-slice.rs b/tests/codegen/option-as-slice.rs index d735d558374..1edd9ba9f7d 100644 --- a/tests/codegen/option-as-slice.rs +++ b/tests/codegen/option-as-slice.rs @@ -1,5 +1,7 @@ // compile-flags: -O -Z randomize-layout=no // only-x86_64 +// ignore-llvm-version: 16.0.0 +// ^ needs https://reviews.llvm.org/D146149 in 16.0.1 #![crate_type = "lib"] #![feature(option_as_slice)] diff --git a/tests/codegen/thread-local.rs b/tests/codegen/thread-local.rs index aa7fab7fb17..caf0366d2c1 100644 --- a/tests/codegen/thread-local.rs +++ b/tests/codegen/thread-local.rs @@ -20,8 +20,8 @@ thread_local!(static A: Cell<u32> = const { Cell::new(1) }); // CHECK-LABEL: @get #[no_mangle] fn get() -> u32 { - // CHECK: %0 = load i32, {{.*}}[[TLS]]{{.*}} - // CHECK-NEXT: ret i32 %0 + // CHECK: [[RET_0:%.+]] = load i32, {{.*}}[[TLS]]{{.*}} + // CHECK-NEXT: ret i32 [[RET_0]] A.with(|a| a.get()) } @@ -36,8 +36,8 @@ fn set(v: u32) { // CHECK-LABEL: @get_aux #[no_mangle] fn get_aux() -> u64 { - // CHECK: %0 = load i64, {{.*}}[[TLS_AUX]] - // CHECK-NEXT: ret i64 %0 + // CHECK: [[RET_1:%.+]] = load i64, {{.*}}[[TLS_AUX]] + // CHECK-NEXT: ret i64 [[RET_1]] aux::A.with(|a| a.get()) } diff --git a/tests/debuginfo/unsized.rs b/tests/debuginfo/unsized.rs index b1ec9b06830..3b8280bc4a9 100644 --- a/tests/debuginfo/unsized.rs +++ b/tests/debuginfo/unsized.rs @@ -1,4 +1,6 @@ // compile-flags:-g +// ignore-gdb-version: 13.1 - 99.0 +// ^ https://sourceware.org/bugzilla/show_bug.cgi?id=30330 // === GDB TESTS =================================================================================== diff --git a/tests/run-make/issue-107094/Makefile b/tests/run-make/issue-107094/Makefile new file mode 100644 index 00000000000..d614e3e1055 --- /dev/null +++ b/tests/run-make/issue-107094/Makefile @@ -0,0 +1,7 @@ +# needs-git-hash + +include ../tools.mk + +all: + $(BARE_RUSTC) --version --verbose | $(CGREP) -i -e "commit-hash: [0-9a-f]{40}" "commit-date: [0-9]{4}-[0-9]{2}-[0-9]{2}" + $(BARE_RUSTDOC) --version --verbose | $(CGREP) -i -e "commit-hash: [0-9a-f]{40}" "commit-date: [0-9]{4}-[0-9]{2}-[0-9]{2}" diff --git a/tests/rustdoc-ui/error-in-impl-trait/infinite-recursive-type-2.rs b/tests/rustdoc-ui/error-in-impl-trait/infinite-recursive-type-2.rs new file mode 100644 index 00000000000..e49fe079813 --- /dev/null +++ b/tests/rustdoc-ui/error-in-impl-trait/infinite-recursive-type-2.rs @@ -0,0 +1,9 @@ +// check-pass + +pub fn f() -> impl Sized { + pub enum E { + V(E), + } + + unimplemented!() +} diff --git a/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.rs b/tests/rustdoc-ui/error-in-impl-trait/infinite-recursive-type-impl-trait-return.rs index 939da186fbc..939da186fbc 100644 --- a/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.rs +++ b/tests/rustdoc-ui/error-in-impl-trait/infinite-recursive-type-impl-trait-return.rs diff --git a/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.stderr b/tests/rustdoc-ui/error-in-impl-trait/infinite-recursive-type-impl-trait-return.stderr index aff7402bc91..aff7402bc91 100644 --- a/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.stderr +++ b/tests/rustdoc-ui/error-in-impl-trait/infinite-recursive-type-impl-trait-return.stderr diff --git a/tests/rustdoc-ui/infinite-recursive-type-impl-trait.rs b/tests/rustdoc-ui/error-in-impl-trait/infinite-recursive-type.rs index ac517257498..096130d7768 100644 --- a/tests/rustdoc-ui/infinite-recursive-type-impl-trait.rs +++ b/tests/rustdoc-ui/error-in-impl-trait/infinite-recursive-type.rs @@ -1,6 +1,9 @@ +// check-pass + fn f() -> impl Sized { - enum E { //~ ERROR + enum E { V(E), } + unimplemented!() } diff --git a/tests/rustdoc-ui/infinite-recursive-type-impl-trait.stderr b/tests/rustdoc-ui/infinite-recursive-type-impl-trait.stderr deleted file mode 100644 index a61577bd14a..00000000000 --- a/tests/rustdoc-ui/infinite-recursive-type-impl-trait.stderr +++ /dev/null @@ -1,16 +0,0 @@ -error[E0072]: recursive type `f::E` has infinite size - --> $DIR/infinite-recursive-type-impl-trait.rs:2:5 - | -LL | enum E { - | ^^^^^^ -LL | V(E), - | - recursive without indirection - | -help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle - | -LL | V(Box<E>), - | ++++ + - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0072`. diff --git a/tests/rustdoc/issue-110422-inner-private.rs b/tests/rustdoc/issue-110422-inner-private.rs new file mode 100644 index 00000000000..ee8ed5cc6e1 --- /dev/null +++ b/tests/rustdoc/issue-110422-inner-private.rs @@ -0,0 +1,64 @@ +// Regression test for <https://github.com/rust-lang/rust/issues/110422>. +// This test ensures that inner items (except for implementations and macros) +// don't appear in documentation. + +// compile-flags: --document-private-items + +#![crate_name = "foo"] + +// @has 'foo/index.html' +// Checking there is no "trait" entry. +// @count - '//*[@id="main-content"]/*[@class="small-section-header"]' 4 +// @has - '//*[@id="main-content"]/*[@class="small-section-header"]' 'Structs' +// @has - '//*[@id="main-content"]/*[@class="small-section-header"]' 'Constants' +// @has - '//*[@id="main-content"]/*[@class="small-section-header"]' 'Functions' +// @has - '//*[@id="main-content"]/*[@class="small-section-header"]' 'Macros' + +// @has - '//a[@href="fn.foo.html"]' 'foo' +fn foo() { + fn bar() {} + + // @has - '//a[@class="macro"]' 'visible_macro' + // @!has - '//a[@class="macro"]' 'non_visible_macro' + // @has 'foo/macro.visible_macro.html' + // @!has 'foo/macro.non_visible_macro.html' + #[macro_export] + macro_rules! visible_macro { + () => {} + } + + macro_rules! non_visible_macro { + () => {} + } +} + +// @has 'foo/index.html' +// @has - '//a[@href="struct.Bar.html"]' 'Bar' +struct Bar; + +const BAR: i32 = { + // @!has - '//a[@href="fn.yo.html"]' 'yo' + // @!has 'foo/fn.yo.html' + fn yo() {} + + // @!has 'foo/index.html' '//a[@href="trait.Foo.html"]' 'Foo' + // @!has 'foo/trait.Foo.html' + trait Foo { + fn babar() {} + } + impl Foo for Bar {} + + // @has 'foo/struct.Bar.html' + // @has - '//*[@id="method.foo"]/*[@class="code-header"]' 'pub(crate) fn foo()' + // @count - '//*[@id="main-content"]/*[@class="small-section-header"]' 3 + // We now check that the `Foo` trait is not documented nor visible on `Bar` page. + // @has - '//*[@id="main-content"]/*[@class="small-section-header"]' 'Implementations' + // @has - '//*[@id="main-content"]/*[@class="small-section-header"]' 'Auto Trait Implementations' + // @has - '//*[@id="main-content"]/*[@class="small-section-header"]' 'Blanket Implementations' + // @!has - '//*[@href="trait.Foo.html#method.babar"]/*[@class="code-header"]' 'fn babar()' + impl Bar { + fn foo() {} + } + + 1 +}; diff --git a/tests/ui-fulldeps/compiler-calls.rs b/tests/ui-fulldeps/compiler-calls.rs index a9520b59277..b6d3b7b040d 100644 --- a/tests/ui-fulldeps/compiler-calls.rs +++ b/tests/ui-fulldeps/compiler-calls.rs @@ -2,7 +2,6 @@ // Test that the Callbacks interface to the compiler works. // ignore-cross-compile -// ignore-stage1 // ignore-remote #![feature(rustc_private)] diff --git a/tests/ui-fulldeps/hash-stable-is-unstable.rs b/tests/ui-fulldeps/hash-stable-is-unstable.rs index 11fe688f391..37d7472ec60 100644 --- a/tests/ui-fulldeps/hash-stable-is-unstable.rs +++ b/tests/ui-fulldeps/hash-stable-is-unstable.rs @@ -1,4 +1,3 @@ -// ignore-stage1 // compile-flags: -Zdeduplicate-diagnostics=yes extern crate rustc_data_structures; //~^ use of unstable library feature 'rustc_private' diff --git a/tests/ui-fulldeps/hash-stable-is-unstable.stderr b/tests/ui-fulldeps/hash-stable-is-unstable.stderr index d25657691ed..1a8994d722e 100644 --- a/tests/ui-fulldeps/hash-stable-is-unstable.stderr +++ b/tests/ui-fulldeps/hash-stable-is-unstable.stderr @@ -1,5 +1,5 @@ error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? - --> $DIR/hash-stable-is-unstable.rs:3:1 + --> $DIR/hash-stable-is-unstable.rs:2:1 | LL | extern crate rustc_data_structures; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -8,7 +8,7 @@ LL | extern crate rustc_data_structures; = help: add `#![feature(rustc_private)]` to the crate attributes to enable error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? - --> $DIR/hash-stable-is-unstable.rs:5:1 + --> $DIR/hash-stable-is-unstable.rs:4:1 | LL | extern crate rustc_macros; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -17,7 +17,7 @@ LL | extern crate rustc_macros; = help: add `#![feature(rustc_private)]` to the crate attributes to enable error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? - --> $DIR/hash-stable-is-unstable.rs:7:1 + --> $DIR/hash-stable-is-unstable.rs:6:1 | LL | extern crate rustc_query_system; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -26,7 +26,7 @@ LL | extern crate rustc_query_system; = help: add `#![feature(rustc_private)]` to the crate attributes to enable error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? - --> $DIR/hash-stable-is-unstable.rs:10:5 + --> $DIR/hash-stable-is-unstable.rs:9:5 | LL | use rustc_macros::HashStable; | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -35,7 +35,7 @@ LL | use rustc_macros::HashStable; = help: add `#![feature(rustc_private)]` to the crate attributes to enable error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? - --> $DIR/hash-stable-is-unstable.rs:13:10 + --> $DIR/hash-stable-is-unstable.rs:12:10 | LL | #[derive(HashStable)] | ^^^^^^^^^^ diff --git a/tests/ui-fulldeps/pathless-extern-unstable.rs b/tests/ui-fulldeps/pathless-extern-unstable.rs index 524b0c2f73a..7fba8343bc0 100644 --- a/tests/ui-fulldeps/pathless-extern-unstable.rs +++ b/tests/ui-fulldeps/pathless-extern-unstable.rs @@ -1,4 +1,3 @@ -// ignore-stage1 // edition:2018 // compile-flags:--extern rustc_middle diff --git a/tests/ui-fulldeps/pathless-extern-unstable.stderr b/tests/ui-fulldeps/pathless-extern-unstable.stderr index dcc3cddd32c..174cd3c2804 100644 --- a/tests/ui-fulldeps/pathless-extern-unstable.stderr +++ b/tests/ui-fulldeps/pathless-extern-unstable.stderr @@ -1,5 +1,5 @@ error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? - --> $DIR/pathless-extern-unstable.rs:7:9 + --> $DIR/pathless-extern-unstable.rs:6:9 | LL | pub use rustc_middle; | ^^^^^^^^^^^^ diff --git a/tests/ui-fulldeps/auxiliary/empty-plugin.rs b/tests/ui-fulldeps/plugin/auxiliary/empty-plugin.rs index c24cdc97aa5..c24cdc97aa5 100644 --- a/tests/ui-fulldeps/auxiliary/empty-plugin.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/empty-plugin.rs diff --git a/tests/ui-fulldeps/auxiliary/issue-40001-plugin.rs b/tests/ui-fulldeps/plugin/auxiliary/issue-40001-plugin.rs index 3f6caecaa5a..3f6caecaa5a 100644 --- a/tests/ui-fulldeps/auxiliary/issue-40001-plugin.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/issue-40001-plugin.rs diff --git a/tests/ui-fulldeps/auxiliary/lint-for-crate.rs b/tests/ui-fulldeps/plugin/auxiliary/lint-for-crate.rs index 6304c07d2c7..6304c07d2c7 100644 --- a/tests/ui-fulldeps/auxiliary/lint-for-crate.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/lint-for-crate.rs diff --git a/tests/ui-fulldeps/auxiliary/lint-group-plugin-test.rs b/tests/ui-fulldeps/plugin/auxiliary/lint-group-plugin-test.rs index 4a41e7fbb72..4a41e7fbb72 100644 --- a/tests/ui-fulldeps/auxiliary/lint-group-plugin-test.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/lint-group-plugin-test.rs diff --git a/tests/ui-fulldeps/auxiliary/lint-plugin-test.rs b/tests/ui-fulldeps/plugin/auxiliary/lint-plugin-test.rs index 30956deb799..30956deb799 100644 --- a/tests/ui-fulldeps/auxiliary/lint-plugin-test.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/lint-plugin-test.rs diff --git a/tests/ui-fulldeps/auxiliary/lint-tool-test.rs b/tests/ui-fulldeps/plugin/auxiliary/lint-tool-test.rs index c2c024865e8..c2c024865e8 100644 --- a/tests/ui-fulldeps/auxiliary/lint-tool-test.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/lint-tool-test.rs diff --git a/tests/ui-fulldeps/auxiliary/lto-syntax-extension-lib.rs b/tests/ui-fulldeps/plugin/auxiliary/lto-syntax-extension-lib.rs index 954a1e554da..954a1e554da 100644 --- a/tests/ui-fulldeps/auxiliary/lto-syntax-extension-lib.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/lto-syntax-extension-lib.rs diff --git a/tests/ui-fulldeps/auxiliary/lto-syntax-extension-plugin.rs b/tests/ui-fulldeps/plugin/auxiliary/lto-syntax-extension-plugin.rs index 9b075c1a5b9..9b075c1a5b9 100644 --- a/tests/ui-fulldeps/auxiliary/lto-syntax-extension-plugin.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/lto-syntax-extension-plugin.rs diff --git a/tests/ui-fulldeps/auxiliary/multiple-plugins-1.rs b/tests/ui-fulldeps/plugin/auxiliary/multiple-plugins-1.rs index fd6e9e20f03..fd6e9e20f03 100644 --- a/tests/ui-fulldeps/auxiliary/multiple-plugins-1.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/multiple-plugins-1.rs diff --git a/tests/ui-fulldeps/auxiliary/multiple-plugins-2.rs b/tests/ui-fulldeps/plugin/auxiliary/multiple-plugins-2.rs index fd6e9e20f03..fd6e9e20f03 100644 --- a/tests/ui-fulldeps/auxiliary/multiple-plugins-2.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/multiple-plugins-2.rs diff --git a/tests/ui-fulldeps/auxiliary/outlive-expansion-phase.rs b/tests/ui-fulldeps/plugin/auxiliary/outlive-expansion-phase.rs index e83dfe80463..e83dfe80463 100644 --- a/tests/ui-fulldeps/auxiliary/outlive-expansion-phase.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/outlive-expansion-phase.rs diff --git a/tests/ui-fulldeps/auxiliary/rlib-crate-test.rs b/tests/ui-fulldeps/plugin/auxiliary/rlib-crate-test.rs index 3ba73538ecf..3ba73538ecf 100644 --- a/tests/ui-fulldeps/auxiliary/rlib-crate-test.rs +++ b/tests/ui-fulldeps/plugin/auxiliary/rlib-crate-test.rs diff --git a/tests/ui-fulldeps/feature-gate-plugin.rs b/tests/ui-fulldeps/plugin/feature-gate-plugin.rs index 85eaf533643..85eaf533643 100644 --- a/tests/ui-fulldeps/feature-gate-plugin.rs +++ b/tests/ui-fulldeps/plugin/feature-gate-plugin.rs diff --git a/tests/ui-fulldeps/feature-gate-plugin.stderr b/tests/ui-fulldeps/plugin/feature-gate-plugin.stderr index 5e40561c7f5..5e40561c7f5 100644 --- a/tests/ui-fulldeps/feature-gate-plugin.stderr +++ b/tests/ui-fulldeps/plugin/feature-gate-plugin.stderr diff --git a/tests/ui-fulldeps/gated-plugin.rs b/tests/ui-fulldeps/plugin/gated-plugin.rs index 85eaf533643..85eaf533643 100644 --- a/tests/ui-fulldeps/gated-plugin.rs +++ b/tests/ui-fulldeps/plugin/gated-plugin.rs diff --git a/tests/ui-fulldeps/gated-plugin.stderr b/tests/ui-fulldeps/plugin/gated-plugin.stderr index f48f1eab60b..f48f1eab60b 100644 --- a/tests/ui-fulldeps/gated-plugin.stderr +++ b/tests/ui-fulldeps/plugin/gated-plugin.stderr diff --git a/tests/ui-fulldeps/issue-15778-fail.rs b/tests/ui-fulldeps/plugin/issue-15778-fail.rs index beecaadf955..beecaadf955 100644 --- a/tests/ui-fulldeps/issue-15778-fail.rs +++ b/tests/ui-fulldeps/plugin/issue-15778-fail.rs diff --git a/tests/ui-fulldeps/issue-15778-fail.stderr b/tests/ui-fulldeps/plugin/issue-15778-fail.stderr index a37893e1203..a37893e1203 100644 --- a/tests/ui-fulldeps/issue-15778-fail.stderr +++ b/tests/ui-fulldeps/plugin/issue-15778-fail.stderr diff --git a/tests/ui-fulldeps/issue-40001.rs b/tests/ui-fulldeps/plugin/issue-40001.rs index e14338fdbbf..e14338fdbbf 100644 --- a/tests/ui-fulldeps/issue-40001.rs +++ b/tests/ui-fulldeps/plugin/issue-40001.rs diff --git a/tests/ui-fulldeps/issue-40001.stderr b/tests/ui-fulldeps/plugin/issue-40001.stderr index 73ec0692464..73ec0692464 100644 --- a/tests/ui-fulldeps/issue-40001.stderr +++ b/tests/ui-fulldeps/plugin/issue-40001.stderr diff --git a/tests/ui-fulldeps/lint-group-plugin-deny-cmdline.rs b/tests/ui-fulldeps/plugin/lint-group-plugin-deny-cmdline.rs index 9f8a879608c..9f8a879608c 100644 --- a/tests/ui-fulldeps/lint-group-plugin-deny-cmdline.rs +++ b/tests/ui-fulldeps/plugin/lint-group-plugin-deny-cmdline.rs diff --git a/tests/ui-fulldeps/lint-group-plugin-deny-cmdline.stderr b/tests/ui-fulldeps/plugin/lint-group-plugin-deny-cmdline.stderr index 20486d596d9..20486d596d9 100644 --- a/tests/ui-fulldeps/lint-group-plugin-deny-cmdline.stderr +++ b/tests/ui-fulldeps/plugin/lint-group-plugin-deny-cmdline.stderr diff --git a/tests/ui-fulldeps/lint-group-plugin.rs b/tests/ui-fulldeps/plugin/lint-group-plugin.rs index 7b74be7a954..7b74be7a954 100644 --- a/tests/ui-fulldeps/lint-group-plugin.rs +++ b/tests/ui-fulldeps/plugin/lint-group-plugin.rs diff --git a/tests/ui-fulldeps/lint-group-plugin.stderr b/tests/ui-fulldeps/plugin/lint-group-plugin.stderr index 6f429dad017..6f429dad017 100644 --- a/tests/ui-fulldeps/lint-group-plugin.stderr +++ b/tests/ui-fulldeps/plugin/lint-group-plugin.stderr diff --git a/tests/ui-fulldeps/lint-plugin-cmdline-allow.rs b/tests/ui-fulldeps/plugin/lint-plugin-cmdline-allow.rs index 1cc16e2fd1c..1cc16e2fd1c 100644 --- a/tests/ui-fulldeps/lint-plugin-cmdline-allow.rs +++ b/tests/ui-fulldeps/plugin/lint-plugin-cmdline-allow.rs diff --git a/tests/ui-fulldeps/lint-plugin-cmdline-allow.stderr b/tests/ui-fulldeps/plugin/lint-plugin-cmdline-allow.stderr index f06703a2784..f06703a2784 100644 --- a/tests/ui-fulldeps/lint-plugin-cmdline-allow.stderr +++ b/tests/ui-fulldeps/plugin/lint-plugin-cmdline-allow.stderr diff --git a/tests/ui-fulldeps/lint-plugin-cmdline-load.rs b/tests/ui-fulldeps/plugin/lint-plugin-cmdline-load.rs index 0bd95dfbd14..0bd95dfbd14 100644 --- a/tests/ui-fulldeps/lint-plugin-cmdline-load.rs +++ b/tests/ui-fulldeps/plugin/lint-plugin-cmdline-load.rs diff --git a/tests/ui-fulldeps/lint-plugin-cmdline-load.stderr b/tests/ui-fulldeps/plugin/lint-plugin-cmdline-load.stderr index 82679c9e10a..82679c9e10a 100644 --- a/tests/ui-fulldeps/lint-plugin-cmdline-load.stderr +++ b/tests/ui-fulldeps/plugin/lint-plugin-cmdline-load.stderr diff --git a/tests/ui-fulldeps/lint-plugin-deny-attr.rs b/tests/ui-fulldeps/plugin/lint-plugin-deny-attr.rs index 04230a8e883..04230a8e883 100644 --- a/tests/ui-fulldeps/lint-plugin-deny-attr.rs +++ b/tests/ui-fulldeps/plugin/lint-plugin-deny-attr.rs diff --git a/tests/ui-fulldeps/lint-plugin-deny-attr.stderr b/tests/ui-fulldeps/plugin/lint-plugin-deny-attr.stderr index 5e8891bf1f1..5e8891bf1f1 100644 --- a/tests/ui-fulldeps/lint-plugin-deny-attr.stderr +++ b/tests/ui-fulldeps/plugin/lint-plugin-deny-attr.stderr diff --git a/tests/ui-fulldeps/lint-plugin-deny-cmdline.rs b/tests/ui-fulldeps/plugin/lint-plugin-deny-cmdline.rs index c460cfd5f94..c460cfd5f94 100644 --- a/tests/ui-fulldeps/lint-plugin-deny-cmdline.rs +++ b/tests/ui-fulldeps/plugin/lint-plugin-deny-cmdline.rs diff --git a/tests/ui-fulldeps/lint-plugin-deny-cmdline.stderr b/tests/ui-fulldeps/plugin/lint-plugin-deny-cmdline.stderr index d5d6b535214..d5d6b535214 100644 --- a/tests/ui-fulldeps/lint-plugin-deny-cmdline.stderr +++ b/tests/ui-fulldeps/plugin/lint-plugin-deny-cmdline.stderr diff --git a/tests/ui-fulldeps/lint-plugin-forbid-attrs.rs b/tests/ui-fulldeps/plugin/lint-plugin-forbid-attrs.rs index cf31b3ec158..cf31b3ec158 100644 --- a/tests/ui-fulldeps/lint-plugin-forbid-attrs.rs +++ b/tests/ui-fulldeps/plugin/lint-plugin-forbid-attrs.rs diff --git a/tests/ui-fulldeps/lint-plugin-forbid-attrs.stderr b/tests/ui-fulldeps/plugin/lint-plugin-forbid-attrs.stderr index ae34b25cc2f..ae34b25cc2f 100644 --- a/tests/ui-fulldeps/lint-plugin-forbid-attrs.stderr +++ b/tests/ui-fulldeps/plugin/lint-plugin-forbid-attrs.stderr diff --git a/tests/ui-fulldeps/lint-plugin-forbid-cmdline.rs b/tests/ui-fulldeps/plugin/lint-plugin-forbid-cmdline.rs index b9d1aa85a69..b9d1aa85a69 100644 --- a/tests/ui-fulldeps/lint-plugin-forbid-cmdline.rs +++ b/tests/ui-fulldeps/plugin/lint-plugin-forbid-cmdline.rs diff --git a/tests/ui-fulldeps/lint-plugin-forbid-cmdline.stderr b/tests/ui-fulldeps/plugin/lint-plugin-forbid-cmdline.stderr index 491c4d20646..491c4d20646 100644 --- a/tests/ui-fulldeps/lint-plugin-forbid-cmdline.stderr +++ b/tests/ui-fulldeps/plugin/lint-plugin-forbid-cmdline.stderr diff --git a/tests/ui-fulldeps/lint-plugin.rs b/tests/ui-fulldeps/plugin/lint-plugin.rs index 66057eea6bc..66057eea6bc 100644 --- a/tests/ui-fulldeps/lint-plugin.rs +++ b/tests/ui-fulldeps/plugin/lint-plugin.rs diff --git a/tests/ui-fulldeps/lint-plugin.stderr b/tests/ui-fulldeps/plugin/lint-plugin.stderr index dd5d3d72ecf..dd5d3d72ecf 100644 --- a/tests/ui-fulldeps/lint-plugin.stderr +++ b/tests/ui-fulldeps/plugin/lint-plugin.stderr diff --git a/tests/ui-fulldeps/lint-tool-cmdline-allow.rs b/tests/ui-fulldeps/plugin/lint-tool-cmdline-allow.rs index 83a8b3e1a7e..83a8b3e1a7e 100644 --- a/tests/ui-fulldeps/lint-tool-cmdline-allow.rs +++ b/tests/ui-fulldeps/plugin/lint-tool-cmdline-allow.rs diff --git a/tests/ui-fulldeps/lint-tool-cmdline-allow.stderr b/tests/ui-fulldeps/plugin/lint-tool-cmdline-allow.stderr index b060e3a3e38..b060e3a3e38 100644 --- a/tests/ui-fulldeps/lint-tool-cmdline-allow.stderr +++ b/tests/ui-fulldeps/plugin/lint-tool-cmdline-allow.stderr diff --git a/tests/ui-fulldeps/lint-tool-test.rs b/tests/ui-fulldeps/plugin/lint-tool-test.rs index f92bcd213b8..f92bcd213b8 100644 --- a/tests/ui-fulldeps/lint-tool-test.rs +++ b/tests/ui-fulldeps/plugin/lint-tool-test.rs diff --git a/tests/ui-fulldeps/lint-tool-test.stderr b/tests/ui-fulldeps/plugin/lint-tool-test.stderr index 027cf8f80cf..027cf8f80cf 100644 --- a/tests/ui-fulldeps/lint-tool-test.stderr +++ b/tests/ui-fulldeps/plugin/lint-tool-test.stderr diff --git a/tests/ui-fulldeps/lto-syntax-extension.rs b/tests/ui-fulldeps/plugin/lto-syntax-extension.rs index 5964e70f195..5964e70f195 100644 --- a/tests/ui-fulldeps/lto-syntax-extension.rs +++ b/tests/ui-fulldeps/plugin/lto-syntax-extension.rs diff --git a/tests/ui-fulldeps/lto-syntax-extension.stderr b/tests/ui-fulldeps/plugin/lto-syntax-extension.stderr index 555493f3230..555493f3230 100644 --- a/tests/ui-fulldeps/lto-syntax-extension.stderr +++ b/tests/ui-fulldeps/plugin/lto-syntax-extension.stderr diff --git a/tests/ui-fulldeps/macro-crate-rlib.rs b/tests/ui-fulldeps/plugin/macro-crate-rlib.rs index 1fd514c6173..38bd340539b 100644 --- a/tests/ui-fulldeps/macro-crate-rlib.rs +++ b/tests/ui-fulldeps/plugin/macro-crate-rlib.rs @@ -1,4 +1,5 @@ // aux-build:rlib-crate-test.rs +// ignore-stage1 // ignore-cross-compile gives a different error message #![feature(plugin)] diff --git a/tests/ui-fulldeps/macro-crate-rlib.stderr b/tests/ui-fulldeps/plugin/macro-crate-rlib.stderr index 9c2b992b765..0651cee56f7 100644 --- a/tests/ui-fulldeps/macro-crate-rlib.stderr +++ b/tests/ui-fulldeps/plugin/macro-crate-rlib.stderr @@ -1,5 +1,5 @@ error[E0457]: plugin `rlib_crate_test` only found in rlib format, but must be available in dylib format - --> $DIR/macro-crate-rlib.rs:5:11 + --> $DIR/macro-crate-rlib.rs:6:11 | LL | #![plugin(rlib_crate_test)] | ^^^^^^^^^^^^^^^ diff --git a/tests/ui-fulldeps/multiple-plugins.rs b/tests/ui-fulldeps/plugin/multiple-plugins.rs index 9af3ebd570c..9af3ebd570c 100644 --- a/tests/ui-fulldeps/multiple-plugins.rs +++ b/tests/ui-fulldeps/plugin/multiple-plugins.rs diff --git a/tests/ui-fulldeps/multiple-plugins.stderr b/tests/ui-fulldeps/plugin/multiple-plugins.stderr index 878ffabfc7f..878ffabfc7f 100644 --- a/tests/ui-fulldeps/multiple-plugins.stderr +++ b/tests/ui-fulldeps/plugin/multiple-plugins.stderr diff --git a/tests/ui-fulldeps/outlive-expansion-phase.rs b/tests/ui-fulldeps/plugin/outlive-expansion-phase.rs index fb22888d98a..fb22888d98a 100644 --- a/tests/ui-fulldeps/outlive-expansion-phase.rs +++ b/tests/ui-fulldeps/plugin/outlive-expansion-phase.rs diff --git a/tests/ui-fulldeps/outlive-expansion-phase.stderr b/tests/ui-fulldeps/plugin/outlive-expansion-phase.stderr index e40a08ae73b..e40a08ae73b 100644 --- a/tests/ui-fulldeps/outlive-expansion-phase.stderr +++ b/tests/ui-fulldeps/plugin/outlive-expansion-phase.stderr diff --git a/tests/ui-fulldeps/plugin-args.rs b/tests/ui-fulldeps/plugin/plugin-args.rs index 488f2b775bf..488f2b775bf 100644 --- a/tests/ui-fulldeps/plugin-args.rs +++ b/tests/ui-fulldeps/plugin/plugin-args.rs diff --git a/tests/ui-fulldeps/plugin-args.stderr b/tests/ui-fulldeps/plugin/plugin-args.stderr index 177f33005c8..177f33005c8 100644 --- a/tests/ui-fulldeps/plugin-args.stderr +++ b/tests/ui-fulldeps/plugin/plugin-args.stderr diff --git a/tests/ui-fulldeps/plugin-as-extern-crate.rs b/tests/ui-fulldeps/plugin/plugin-as-extern-crate.rs index 4d26e08d81e..4d26e08d81e 100644 --- a/tests/ui-fulldeps/plugin-as-extern-crate.rs +++ b/tests/ui-fulldeps/plugin/plugin-as-extern-crate.rs diff --git a/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.rs b/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.rs index 6cc7bab3726..ef85fada506 100644 --- a/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.rs +++ b/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.rs @@ -6,6 +6,7 @@ // The proc_macro2 crate handles spans differently when on beta/stable release rather than nightly, // changing the output of this test. Since Diagnostic is strictly internal to the compiler // the test is just ignored on stable and beta: +// ignore-stage1 // ignore-beta // ignore-stable diff --git a/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr b/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr index a2f3bb5277b..3f961449566 100644 --- a/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr +++ b/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr @@ -1,11 +1,11 @@ error: unsupported type attribute for diagnostic derive enum - --> $DIR/diagnostic-derive.rs:41:1 + --> $DIR/diagnostic-derive.rs:42:1 | LL | #[diag(no_crate_example, code = "E0123")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:44:5 + --> $DIR/diagnostic-derive.rs:45:5 | LL | Foo, | ^^^ @@ -13,7 +13,7 @@ LL | Foo, = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:46:5 + --> $DIR/diagnostic-derive.rs:47:5 | LL | Bar, | ^^^ @@ -21,19 +21,19 @@ LL | Bar, = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: expected parentheses: #[diag(...)] - --> $DIR/diagnostic-derive.rs:52:8 + --> $DIR/diagnostic-derive.rs:53:8 | LL | #[diag = "E0123"] | ^ error: `#[nonsense(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:57:1 + --> $DIR/diagnostic-derive.rs:58:1 | LL | #[nonsense(no_crate_example, code = "E0123")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:57:1 + --> $DIR/diagnostic-derive.rs:58:1 | LL | / #[nonsense(no_crate_example, code = "E0123")] LL | | @@ -45,7 +45,7 @@ LL | | struct InvalidStructAttr {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:64:1 + --> $DIR/diagnostic-derive.rs:65:1 | LL | / #[diag("E0123")] LL | | @@ -55,13 +55,13 @@ LL | | struct InvalidLitNestedAttr {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: diagnostic slug must be the first argument - --> $DIR/diagnostic-derive.rs:74:16 + --> $DIR/diagnostic-derive.rs:75:16 | LL | #[diag(nonsense("foo"), code = "E0123", slug = "foo")] | ^ error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:74:1 + --> $DIR/diagnostic-derive.rs:75:1 | LL | / #[diag(nonsense("foo"), code = "E0123", slug = "foo")] LL | | @@ -72,7 +72,7 @@ LL | | struct InvalidNestedStructAttr1 {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: unknown argument - --> $DIR/diagnostic-derive.rs:80:8 + --> $DIR/diagnostic-derive.rs:81:8 | LL | #[diag(nonsense = "...", code = "E0123", slug = "foo")] | ^^^^^^^^ @@ -80,7 +80,7 @@ LL | #[diag(nonsense = "...", code = "E0123", slug = "foo")] = note: only the `code` parameter is valid after the slug error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:80:1 + --> $DIR/diagnostic-derive.rs:81:1 | LL | / #[diag(nonsense = "...", code = "E0123", slug = "foo")] LL | | @@ -91,7 +91,7 @@ LL | | struct InvalidNestedStructAttr2 {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: unknown argument - --> $DIR/diagnostic-derive.rs:86:8 + --> $DIR/diagnostic-derive.rs:87:8 | LL | #[diag(nonsense = 4, code = "E0123", slug = "foo")] | ^^^^^^^^ @@ -99,7 +99,7 @@ LL | #[diag(nonsense = 4, code = "E0123", slug = "foo")] = note: only the `code` parameter is valid after the slug error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:86:1 + --> $DIR/diagnostic-derive.rs:87:1 | LL | / #[diag(nonsense = 4, code = "E0123", slug = "foo")] LL | | @@ -110,7 +110,7 @@ LL | | struct InvalidNestedStructAttr3 {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: unknown argument - --> $DIR/diagnostic-derive.rs:92:42 + --> $DIR/diagnostic-derive.rs:93:42 | LL | #[diag(no_crate_example, code = "E0123", slug = "foo")] | ^^^^ @@ -118,55 +118,55 @@ LL | #[diag(no_crate_example, code = "E0123", slug = "foo")] = note: only the `code` parameter is valid after the slug error: `#[suggestion = ...]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:99:5 + --> $DIR/diagnostic-derive.rs:100:5 | LL | #[suggestion = "bar"] | ^^^^^^^^^^^^^^^^^^^^^ error: specified multiple times - --> $DIR/diagnostic-derive.rs:106:8 + --> $DIR/diagnostic-derive.rs:107:8 | LL | #[diag(no_crate_example, code = "E0456")] | ^^^^^^^^^^^^^^^^ | note: previously specified here - --> $DIR/diagnostic-derive.rs:105:8 + --> $DIR/diagnostic-derive.rs:106:8 | LL | #[diag(no_crate_example, code = "E0123")] | ^^^^^^^^^^^^^^^^ error: specified multiple times - --> $DIR/diagnostic-derive.rs:106:26 + --> $DIR/diagnostic-derive.rs:107:26 | LL | #[diag(no_crate_example, code = "E0456")] | ^^^^ | note: previously specified here - --> $DIR/diagnostic-derive.rs:105:26 + --> $DIR/diagnostic-derive.rs:106:26 | LL | #[diag(no_crate_example, code = "E0123")] | ^^^^ error: specified multiple times - --> $DIR/diagnostic-derive.rs:112:42 + --> $DIR/diagnostic-derive.rs:113:42 | LL | #[diag(no_crate_example, code = "E0456", code = "E0457")] | ^^^^ | note: previously specified here - --> $DIR/diagnostic-derive.rs:112:26 + --> $DIR/diagnostic-derive.rs:113:26 | LL | #[diag(no_crate_example, code = "E0456", code = "E0457")] | ^^^^ error: diagnostic slug must be the first argument - --> $DIR/diagnostic-derive.rs:117:43 + --> $DIR/diagnostic-derive.rs:118:43 | LL | #[diag(no_crate_example, no_crate::example, code = "E0456")] | ^ error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:122:1 + --> $DIR/diagnostic-derive.rs:123:1 | LL | struct KindNotProvided {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -174,7 +174,7 @@ LL | struct KindNotProvided {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:125:1 + --> $DIR/diagnostic-derive.rs:126:1 | LL | / #[diag(code = "E0456")] LL | | @@ -184,31 +184,31 @@ LL | | struct SlugNotProvided {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: the `#[primary_span]` attribute can only be applied to fields of type `Span` or `MultiSpan` - --> $DIR/diagnostic-derive.rs:136:5 + --> $DIR/diagnostic-derive.rs:137:5 | LL | #[primary_span] | ^^^^^^^^^^^^^^^ error: `#[nonsense]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:144:5 + --> $DIR/diagnostic-derive.rs:145:5 | LL | #[nonsense] | ^^^^^^^^^^^ error: the `#[label(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan` - --> $DIR/diagnostic-derive.rs:161:5 + --> $DIR/diagnostic-derive.rs:162:5 | LL | #[label(no_crate_label)] | ^^^^^^^^^^^^^^^^^^^^^^^^ error: `name` doesn't refer to a field on this type - --> $DIR/diagnostic-derive.rs:169:46 + --> $DIR/diagnostic-derive.rs:170:46 | LL | #[suggestion(no_crate_suggestion, code = "{name}")] | ^^^^^^^^ error: invalid format string: expected `'}'` but string was terminated - --> $DIR/diagnostic-derive.rs:174:10 + --> $DIR/diagnostic-derive.rs:175:10 | LL | #[derive(Diagnostic)] | ^^^^^^^^^^ expected `'}'` in format string @@ -217,7 +217,7 @@ LL | #[derive(Diagnostic)] = note: this error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info) error: invalid format string: unmatched `}` found - --> $DIR/diagnostic-derive.rs:184:10 + --> $DIR/diagnostic-derive.rs:185:10 | LL | #[derive(Diagnostic)] | ^^^^^^^^^^ unmatched `}` in format string @@ -226,19 +226,19 @@ LL | #[derive(Diagnostic)] = note: this error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info) error: the `#[label(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan` - --> $DIR/diagnostic-derive.rs:204:5 + --> $DIR/diagnostic-derive.rs:205:5 | LL | #[label(no_crate_label)] | ^^^^^^^^^^^^^^^^^^^^^^^^ error: suggestion without `code = "..."` - --> $DIR/diagnostic-derive.rs:223:5 + --> $DIR/diagnostic-derive.rs:224:5 | LL | #[suggestion(no_crate_suggestion)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: invalid nested attribute - --> $DIR/diagnostic-derive.rs:231:18 + --> $DIR/diagnostic-derive.rs:232:18 | LL | #[suggestion(nonsense = "bar")] | ^^^^^^^^ @@ -246,13 +246,13 @@ LL | #[suggestion(nonsense = "bar")] = help: only `style`, `code` and `applicability` are valid nested attributes error: suggestion without `code = "..."` - --> $DIR/diagnostic-derive.rs:231:5 + --> $DIR/diagnostic-derive.rs:232:5 | LL | #[suggestion(nonsense = "bar")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: invalid nested attribute - --> $DIR/diagnostic-derive.rs:240:18 + --> $DIR/diagnostic-derive.rs:241:18 | LL | #[suggestion(msg = "bar")] | ^^^ @@ -260,13 +260,13 @@ LL | #[suggestion(msg = "bar")] = help: only `style`, `code` and `applicability` are valid nested attributes error: suggestion without `code = "..."` - --> $DIR/diagnostic-derive.rs:240:5 + --> $DIR/diagnostic-derive.rs:241:5 | LL | #[suggestion(msg = "bar")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ error: wrong field type for suggestion - --> $DIR/diagnostic-derive.rs:263:5 + --> $DIR/diagnostic-derive.rs:264:5 | LL | / #[suggestion(no_crate_suggestion, code = "This is suggested code")] LL | | @@ -276,79 +276,79 @@ LL | | suggestion: Applicability, = help: `#[suggestion(...)]` should be applied to fields of type `Span` or `(Span, Applicability)` error: specified multiple times - --> $DIR/diagnostic-derive.rs:279:24 + --> $DIR/diagnostic-derive.rs:280:24 | LL | suggestion: (Span, Span, Applicability), | ^^^^ | note: previously specified here - --> $DIR/diagnostic-derive.rs:279:18 + --> $DIR/diagnostic-derive.rs:280:18 | LL | suggestion: (Span, Span, Applicability), | ^^^^ error: specified multiple times - --> $DIR/diagnostic-derive.rs:287:33 + --> $DIR/diagnostic-derive.rs:288:33 | LL | suggestion: (Applicability, Applicability, Span), | ^^^^^^^^^^^^^ | note: previously specified here - --> $DIR/diagnostic-derive.rs:287:18 + --> $DIR/diagnostic-derive.rs:288:18 | LL | suggestion: (Applicability, Applicability, Span), | ^^^^^^^^^^^^^ error: `#[label = ...]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:294:5 + --> $DIR/diagnostic-derive.rs:295:5 | LL | #[label = "bar"] | ^^^^^^^^^^^^^^^^ error: specified multiple times - --> $DIR/diagnostic-derive.rs:445:5 + --> $DIR/diagnostic-derive.rs:446:5 | LL | #[suggestion(no_crate_suggestion, code = "...", applicability = "maybe-incorrect")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: previously specified here - --> $DIR/diagnostic-derive.rs:447:24 + --> $DIR/diagnostic-derive.rs:448:24 | LL | suggestion: (Span, Applicability), | ^^^^^^^^^^^^^ error: invalid applicability - --> $DIR/diagnostic-derive.rs:453:69 + --> $DIR/diagnostic-derive.rs:454:69 | LL | #[suggestion(no_crate_suggestion, code = "...", applicability = "batman")] | ^^^^^^^^ error: the `#[help(...)]` attribute can only be applied to fields of type `Span`, `MultiSpan`, `bool` or `()` - --> $DIR/diagnostic-derive.rs:520:5 + --> $DIR/diagnostic-derive.rs:521:5 | LL | #[help(no_crate_help)] | ^^^^^^^^^^^^^^^^^^^^^^ error: a diagnostic slug must be the first argument to the attribute - --> $DIR/diagnostic-derive.rs:529:32 + --> $DIR/diagnostic-derive.rs:530:32 | LL | #[label(no_crate_label, foo)] | ^ error: invalid nested attribute - --> $DIR/diagnostic-derive.rs:537:29 + --> $DIR/diagnostic-derive.rs:538:29 | LL | #[label(no_crate_label, foo = "...")] | ^^^ error: invalid nested attribute - --> $DIR/diagnostic-derive.rs:545:29 + --> $DIR/diagnostic-derive.rs:546:29 | LL | #[label(no_crate_label, foo("..."))] | ^^^ error: `#[primary_span]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:557:5 + --> $DIR/diagnostic-derive.rs:558:5 | LL | #[primary_span] | ^^^^^^^^^^^^^^^ @@ -356,13 +356,13 @@ LL | #[primary_span] = help: the `primary_span` field attribute is not valid for lint diagnostics error: `#[error(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:577:1 + --> $DIR/diagnostic-derive.rs:578:1 | LL | #[error(no_crate_example, code = "E0123")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:577:1 + --> $DIR/diagnostic-derive.rs:578:1 | LL | / #[error(no_crate_example, code = "E0123")] LL | | @@ -374,13 +374,13 @@ LL | | struct ErrorAttribute {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: `#[warn_(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:584:1 + --> $DIR/diagnostic-derive.rs:585:1 | LL | #[warn_(no_crate_example, code = "E0123")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:584:1 + --> $DIR/diagnostic-derive.rs:585:1 | LL | / #[warn_(no_crate_example, code = "E0123")] LL | | @@ -392,13 +392,13 @@ LL | | struct WarnAttribute {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: `#[lint(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:591:1 + --> $DIR/diagnostic-derive.rs:592:1 | LL | #[lint(no_crate_example, code = "E0123")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:591:1 + --> $DIR/diagnostic-derive.rs:592:1 | LL | / #[lint(no_crate_example, code = "E0123")] LL | | @@ -410,19 +410,19 @@ LL | | struct LintAttributeOnSessionDiag {} = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]` error: `#[lint(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:598:1 + --> $DIR/diagnostic-derive.rs:599:1 | LL | #[lint(no_crate_example, code = "E0123")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: `#[lint(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:598:1 + --> $DIR/diagnostic-derive.rs:599:1 | LL | #[lint(no_crate_example, code = "E0123")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: diagnostic slug not specified - --> $DIR/diagnostic-derive.rs:598:1 + --> $DIR/diagnostic-derive.rs:599:1 | LL | / #[lint(no_crate_example, code = "E0123")] LL | | @@ -435,19 +435,19 @@ LL | | struct LintAttributeOnLintDiag {} = help: specify the slug as the first argument to the attribute, such as `#[diag(compiletest_example)]` error: specified multiple times - --> $DIR/diagnostic-derive.rs:608:53 + --> $DIR/diagnostic-derive.rs:609:53 | LL | #[suggestion(no_crate_suggestion, code = "...", code = ",,,")] | ^^^^ | note: previously specified here - --> $DIR/diagnostic-derive.rs:608:39 + --> $DIR/diagnostic-derive.rs:609:39 | LL | #[suggestion(no_crate_suggestion, code = "...", code = ",,,")] | ^^^^ error: wrong types for suggestion - --> $DIR/diagnostic-derive.rs:617:24 + --> $DIR/diagnostic-derive.rs:618:24 | LL | suggestion: (Span, usize), | ^^^^^ @@ -455,7 +455,7 @@ LL | suggestion: (Span, usize), = help: `#[suggestion(...)]` on a tuple field must be applied to fields of type `(Span, Applicability)` error: wrong types for suggestion - --> $DIR/diagnostic-derive.rs:625:17 + --> $DIR/diagnostic-derive.rs:626:17 | LL | suggestion: (Span,), | ^^^^^^^ @@ -463,13 +463,13 @@ LL | suggestion: (Span,), = help: `#[suggestion(...)]` on a tuple field must be applied to fields of type `(Span, Applicability)` error: suggestion without `code = "..."` - --> $DIR/diagnostic-derive.rs:632:5 + --> $DIR/diagnostic-derive.rs:633:5 | LL | #[suggestion(no_crate_suggestion)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: `#[multipart_suggestion(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:639:1 + --> $DIR/diagnostic-derive.rs:640:1 | LL | #[multipart_suggestion(no_crate_suggestion)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -477,7 +477,7 @@ LL | #[multipart_suggestion(no_crate_suggestion)] = help: consider creating a `Subdiagnostic` instead error: `#[multipart_suggestion(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:646:5 + --> $DIR/diagnostic-derive.rs:647:5 | LL | #[multipart_suggestion(no_crate_suggestion)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -485,13 +485,13 @@ LL | #[multipart_suggestion(no_crate_suggestion)] = help: consider creating a `Subdiagnostic` instead error: unexpected end of input, unexpected token in nested attribute, expected ident - --> $DIR/diagnostic-derive.rs:642:24 + --> $DIR/diagnostic-derive.rs:643:24 | LL | #[multipart_suggestion()] | ^ error: `#[suggestion(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:654:1 + --> $DIR/diagnostic-derive.rs:655:1 | LL | #[suggestion(no_crate_suggestion, code = "...")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -499,7 +499,7 @@ LL | #[suggestion(no_crate_suggestion, code = "...")] = help: `#[label]` and `#[suggestion]` can only be applied to fields error: `#[label]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:663:1 + --> $DIR/diagnostic-derive.rs:664:1 | LL | #[label] | ^^^^^^^^ @@ -507,31 +507,31 @@ LL | #[label] = help: `#[label]` and `#[suggestion]` can only be applied to fields error: `eager` is the only supported nested attribute for `subdiagnostic` - --> $DIR/diagnostic-derive.rs:697:7 + --> $DIR/diagnostic-derive.rs:698:7 | LL | #[subdiagnostic(bad)] | ^^^^^^^^^^^^^^^^^^ error: `#[subdiagnostic = ...]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:705:5 + --> $DIR/diagnostic-derive.rs:706:5 | LL | #[subdiagnostic = "bad"] | ^^^^^^^^^^^^^^^^^^^^^^^^ error: `eager` is the only supported nested attribute for `subdiagnostic` - --> $DIR/diagnostic-derive.rs:713:7 + --> $DIR/diagnostic-derive.rs:714:7 | LL | #[subdiagnostic(bad, bad)] | ^^^^^^^^^^^^^^^^^^^^^^^ error: `eager` is the only supported nested attribute for `subdiagnostic` - --> $DIR/diagnostic-derive.rs:721:7 + --> $DIR/diagnostic-derive.rs:722:7 | LL | #[subdiagnostic("bad")] | ^^^^^^^^^^^^^^^^^^^^ error: `#[subdiagnostic(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:729:5 + --> $DIR/diagnostic-derive.rs:730:5 | LL | #[subdiagnostic(eager)] | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -539,31 +539,31 @@ LL | #[subdiagnostic(eager)] = help: eager subdiagnostics are not supported on lints error: expected at least one string literal for `code(...)` - --> $DIR/diagnostic-derive.rs:787:23 + --> $DIR/diagnostic-derive.rs:788:23 | LL | #[suggestion(code())] | ^ error: `code(...)` must contain only string literals - --> $DIR/diagnostic-derive.rs:795:23 + --> $DIR/diagnostic-derive.rs:796:23 | LL | #[suggestion(code(foo))] | ^^^ error: unexpected token - --> $DIR/diagnostic-derive.rs:795:23 + --> $DIR/diagnostic-derive.rs:796:23 | LL | #[suggestion(code(foo))] | ^^^ error: expected string literal - --> $DIR/diagnostic-derive.rs:804:25 + --> $DIR/diagnostic-derive.rs:805:25 | LL | #[suggestion(code = 3)] | ^ error: `#[suggestion(...)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:819:5 + --> $DIR/diagnostic-derive.rs:820:5 | LL | #[suggestion(no_crate_suggestion, code = "")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -573,67 +573,67 @@ LL | #[suggestion(no_crate_suggestion, code = "")] = help: to show a variable set of suggestions, use a `Vec` of `Subdiagnostic`s annotated with `#[suggestion(...)]` error: cannot find attribute `nonsense` in this scope - --> $DIR/diagnostic-derive.rs:57:3 + --> $DIR/diagnostic-derive.rs:58:3 | LL | #[nonsense(no_crate_example, code = "E0123")] | ^^^^^^^^ error: cannot find attribute `nonsense` in this scope - --> $DIR/diagnostic-derive.rs:144:7 + --> $DIR/diagnostic-derive.rs:145:7 | LL | #[nonsense] | ^^^^^^^^ error: cannot find attribute `error` in this scope - --> $DIR/diagnostic-derive.rs:577:3 + --> $DIR/diagnostic-derive.rs:578:3 | LL | #[error(no_crate_example, code = "E0123")] | ^^^^^ error: cannot find attribute `warn_` in this scope - --> $DIR/diagnostic-derive.rs:584:3 + --> $DIR/diagnostic-derive.rs:585:3 | LL | #[warn_(no_crate_example, code = "E0123")] | ^^^^^ help: a built-in attribute with a similar name exists: `warn` error: cannot find attribute `lint` in this scope - --> $DIR/diagnostic-derive.rs:591:3 + --> $DIR/diagnostic-derive.rs:592:3 | LL | #[lint(no_crate_example, code = "E0123")] | ^^^^ help: a built-in attribute with a similar name exists: `link` error: cannot find attribute `lint` in this scope - --> $DIR/diagnostic-derive.rs:598:3 + --> $DIR/diagnostic-derive.rs:599:3 | LL | #[lint(no_crate_example, code = "E0123")] | ^^^^ help: a built-in attribute with a similar name exists: `link` error: cannot find attribute `multipart_suggestion` in this scope - --> $DIR/diagnostic-derive.rs:639:3 + --> $DIR/diagnostic-derive.rs:640:3 | LL | #[multipart_suggestion(no_crate_suggestion)] | ^^^^^^^^^^^^^^^^^^^^ error: cannot find attribute `multipart_suggestion` in this scope - --> $DIR/diagnostic-derive.rs:642:3 + --> $DIR/diagnostic-derive.rs:643:3 | LL | #[multipart_suggestion()] | ^^^^^^^^^^^^^^^^^^^^ error: cannot find attribute `multipart_suggestion` in this scope - --> $DIR/diagnostic-derive.rs:646:7 + --> $DIR/diagnostic-derive.rs:647:7 | LL | #[multipart_suggestion(no_crate_suggestion)] | ^^^^^^^^^^^^^^^^^^^^ error[E0425]: cannot find value `nonsense` in module `crate::fluent_generated` - --> $DIR/diagnostic-derive.rs:69:8 + --> $DIR/diagnostic-derive.rs:70:8 | LL | #[diag(nonsense, code = "E0123")] | ^^^^^^^^ not found in `crate::fluent_generated` error[E0425]: cannot find value `__code_34` in this scope - --> $DIR/diagnostic-derive.rs:801:10 + --> $DIR/diagnostic-derive.rs:802:10 | LL | #[derive(Diagnostic)] | ^^^^^^^^^^ not found in this scope @@ -641,7 +641,7 @@ LL | #[derive(Diagnostic)] = note: this error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0277]: the trait bound `Hello: IntoDiagnosticArg` is not satisfied - --> $DIR/diagnostic-derive.rs:338:10 + --> $DIR/diagnostic-derive.rs:339:10 | LL | #[derive(Diagnostic)] | ^^^^^^^^^^ the trait `IntoDiagnosticArg` is not implemented for `Hello` diff --git a/tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs b/tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs index 1d928ca93f9..73cc1cfc03a 100644 --- a/tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs +++ b/tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs @@ -4,6 +4,7 @@ // The proc_macro2 crate handles spans differently when on beta/stable release rather than nightly, // changing the output of this test. Since Subdiagnostic is strictly internal to the compiler // the test is just ignored on stable and beta: +// ignore-stage1 // ignore-beta // ignore-stable diff --git a/tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr b/tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr index 4211b91f04a..529003d90ab 100644 --- a/tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr +++ b/tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr @@ -1,5 +1,5 @@ error: label without `#[primary_span]` field - --> $DIR/subdiagnostic-derive.rs:49:1 + --> $DIR/subdiagnostic-derive.rs:50:1 | LL | / #[label(no_crate_example)] LL | | @@ -9,133 +9,133 @@ LL | | } | |_^ error: diagnostic slug must be first argument of a `#[label(...)]` attribute - --> $DIR/subdiagnostic-derive.rs:56:1 + --> $DIR/subdiagnostic-derive.rs:57:1 | LL | #[label] | ^^^^^^^^ error: `#[foo]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:65:1 + --> $DIR/subdiagnostic-derive.rs:66:1 | LL | #[foo] | ^^^^^^ error: `#[label = ...]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:75:1 + --> $DIR/subdiagnostic-derive.rs:76:1 | LL | #[label = "..."] | ^^^^^^^^^^^^^^^^ error: invalid nested attribute - --> $DIR/subdiagnostic-derive.rs:84:9 + --> $DIR/subdiagnostic-derive.rs:85:9 | LL | #[label(bug = "...")] | ^^^ error: diagnostic slug must be first argument of a `#[label(...)]` attribute - --> $DIR/subdiagnostic-derive.rs:84:1 + --> $DIR/subdiagnostic-derive.rs:85:1 | LL | #[label(bug = "...")] | ^^^^^^^^^^^^^^^^^^^^^ error: unexpected literal in nested attribute, expected ident - --> $DIR/subdiagnostic-derive.rs:94:9 + --> $DIR/subdiagnostic-derive.rs:95:9 | LL | #[label("...")] | ^^^^^ error: invalid nested attribute - --> $DIR/subdiagnostic-derive.rs:103:9 + --> $DIR/subdiagnostic-derive.rs:104:9 | LL | #[label(slug = 4)] | ^^^^ error: diagnostic slug must be first argument of a `#[label(...)]` attribute - --> $DIR/subdiagnostic-derive.rs:103:1 + --> $DIR/subdiagnostic-derive.rs:104:1 | LL | #[label(slug = 4)] | ^^^^^^^^^^^^^^^^^^ error: invalid nested attribute - --> $DIR/subdiagnostic-derive.rs:113:9 + --> $DIR/subdiagnostic-derive.rs:114:9 | LL | #[label(slug("..."))] | ^^^^ error: diagnostic slug must be first argument of a `#[label(...)]` attribute - --> $DIR/subdiagnostic-derive.rs:113:1 + --> $DIR/subdiagnostic-derive.rs:114:1 | LL | #[label(slug("..."))] | ^^^^^^^^^^^^^^^^^^^^^ error: unexpected end of input, unexpected token in nested attribute, expected ident - --> $DIR/subdiagnostic-derive.rs:133:9 + --> $DIR/subdiagnostic-derive.rs:134:9 | LL | #[label()] | ^ error: invalid nested attribute - --> $DIR/subdiagnostic-derive.rs:142:27 + --> $DIR/subdiagnostic-derive.rs:143:27 | LL | #[label(no_crate_example, code = "...")] | ^^^^ error: invalid nested attribute - --> $DIR/subdiagnostic-derive.rs:151:27 + --> $DIR/subdiagnostic-derive.rs:152:27 | LL | #[label(no_crate_example, applicability = "machine-applicable")] | ^^^^^^^^^^^^^ error: unsupported type attribute for subdiagnostic enum - --> $DIR/subdiagnostic-derive.rs:160:1 + --> $DIR/subdiagnostic-derive.rs:161:1 | LL | #[foo] | ^^^^^^ error: `#[bar]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:174:5 + --> $DIR/subdiagnostic-derive.rs:175:5 | LL | #[bar] | ^^^^^^ error: `#[bar = ...]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:186:5 + --> $DIR/subdiagnostic-derive.rs:187:5 | LL | #[bar = "..."] | ^^^^^^^^^^^^^^ error: `#[bar = ...]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:198:5 + --> $DIR/subdiagnostic-derive.rs:199:5 | LL | #[bar = 4] | ^^^^^^^^^^ error: `#[bar(...)]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:210:5 + --> $DIR/subdiagnostic-derive.rs:211:5 | LL | #[bar("...")] | ^^^^^^^^^^^^^ error: invalid nested attribute - --> $DIR/subdiagnostic-derive.rs:222:13 + --> $DIR/subdiagnostic-derive.rs:223:13 | LL | #[label(code = "...")] | ^^^^ error: diagnostic slug must be first argument of a `#[label(...)]` attribute - --> $DIR/subdiagnostic-derive.rs:222:5 + --> $DIR/subdiagnostic-derive.rs:223:5 | LL | #[label(code = "...")] | ^^^^^^^^^^^^^^^^^^^^^^ error: the `#[primary_span]` attribute can only be applied to fields of type `Span` or `MultiSpan` - --> $DIR/subdiagnostic-derive.rs:251:5 + --> $DIR/subdiagnostic-derive.rs:252:5 | LL | #[primary_span] | ^^^^^^^^^^^^^^^ error: label without `#[primary_span]` field - --> $DIR/subdiagnostic-derive.rs:248:1 + --> $DIR/subdiagnostic-derive.rs:249:1 | LL | / #[label(no_crate_example)] LL | | @@ -147,13 +147,13 @@ LL | | } | |_^ error: `#[applicability]` is only valid on suggestions - --> $DIR/subdiagnostic-derive.rs:261:5 + --> $DIR/subdiagnostic-derive.rs:262:5 | LL | #[applicability] | ^^^^^^^^^^^^^^^^ error: `#[bar]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:271:5 + --> $DIR/subdiagnostic-derive.rs:272:5 | LL | #[bar] | ^^^^^^ @@ -161,13 +161,13 @@ LL | #[bar] = help: only `primary_span`, `applicability` and `skip_arg` are valid field attributes error: `#[bar = ...]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:282:5 + --> $DIR/subdiagnostic-derive.rs:283:5 | LL | #[bar = "..."] | ^^^^^^^^^^^^^^ error: `#[bar(...)]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:293:5 + --> $DIR/subdiagnostic-derive.rs:294:5 | LL | #[bar("...")] | ^^^^^^^^^^^^^ @@ -175,7 +175,7 @@ LL | #[bar("...")] = help: only `primary_span`, `applicability` and `skip_arg` are valid field attributes error: unexpected unsupported untagged union - --> $DIR/subdiagnostic-derive.rs:309:1 + --> $DIR/subdiagnostic-derive.rs:310:1 | LL | / union AC { LL | | @@ -185,73 +185,73 @@ LL | | } | |_^ error: a diagnostic slug must be the first argument to the attribute - --> $DIR/subdiagnostic-derive.rs:324:44 + --> $DIR/subdiagnostic-derive.rs:325:44 | LL | #[label(no_crate_example, no_crate::example)] | ^ error: specified multiple times - --> $DIR/subdiagnostic-derive.rs:337:5 + --> $DIR/subdiagnostic-derive.rs:338:5 | LL | #[primary_span] | ^^^^^^^^^^^^^^^ | note: previously specified here - --> $DIR/subdiagnostic-derive.rs:334:5 + --> $DIR/subdiagnostic-derive.rs:335:5 | LL | #[primary_span] | ^^^^^^^^^^^^^^^ error: subdiagnostic kind not specified - --> $DIR/subdiagnostic-derive.rs:343:8 + --> $DIR/subdiagnostic-derive.rs:344:8 | LL | struct AG { | ^^ error: specified multiple times - --> $DIR/subdiagnostic-derive.rs:380:46 + --> $DIR/subdiagnostic-derive.rs:381:46 | LL | #[suggestion(no_crate_example, code = "...", code = "...")] | ^^^^ | note: previously specified here - --> $DIR/subdiagnostic-derive.rs:380:32 + --> $DIR/subdiagnostic-derive.rs:381:32 | LL | #[suggestion(no_crate_example, code = "...", code = "...")] | ^^^^ error: specified multiple times - --> $DIR/subdiagnostic-derive.rs:398:5 + --> $DIR/subdiagnostic-derive.rs:399:5 | LL | #[applicability] | ^^^^^^^^^^^^^^^^ | note: previously specified here - --> $DIR/subdiagnostic-derive.rs:395:5 + --> $DIR/subdiagnostic-derive.rs:396:5 | LL | #[applicability] | ^^^^^^^^^^^^^^^^ error: the `#[applicability]` attribute can only be applied to fields of type `Applicability` - --> $DIR/subdiagnostic-derive.rs:408:5 + --> $DIR/subdiagnostic-derive.rs:409:5 | LL | #[applicability] | ^^^^^^^^^^^^^^^^ error: suggestion without `code = "..."` - --> $DIR/subdiagnostic-derive.rs:421:1 + --> $DIR/subdiagnostic-derive.rs:422:1 | LL | #[suggestion(no_crate_example)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: invalid applicability - --> $DIR/subdiagnostic-derive.rs:431:62 + --> $DIR/subdiagnostic-derive.rs:432:62 | LL | #[suggestion(no_crate_example, code = "...", applicability = "foo")] | ^^^^^ error: suggestion without `#[primary_span]` field - --> $DIR/subdiagnostic-derive.rs:449:1 + --> $DIR/subdiagnostic-derive.rs:450:1 | LL | / #[suggestion(no_crate_example, code = "...")] LL | | @@ -261,25 +261,25 @@ LL | | } | |_^ error: unsupported type attribute for subdiagnostic enum - --> $DIR/subdiagnostic-derive.rs:463:1 + --> $DIR/subdiagnostic-derive.rs:464:1 | LL | #[label] | ^^^^^^^^ error: `var` doesn't refer to a field on this type - --> $DIR/subdiagnostic-derive.rs:483:39 + --> $DIR/subdiagnostic-derive.rs:484:39 | LL | #[suggestion(no_crate_example, code = "{var}", applicability = "machine-applicable")] | ^^^^^^^ error: `var` doesn't refer to a field on this type - --> $DIR/subdiagnostic-derive.rs:502:43 + --> $DIR/subdiagnostic-derive.rs:503:43 | LL | #[suggestion(no_crate_example, code = "{var}", applicability = "machine-applicable")] | ^^^^^^^ error: `#[suggestion_part]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:525:5 + --> $DIR/subdiagnostic-derive.rs:526:5 | LL | #[suggestion_part] | ^^^^^^^^^^^^^^^^^^ @@ -287,7 +287,7 @@ LL | #[suggestion_part] = help: `#[suggestion_part(...)]` is only valid in multipart suggestions, use `#[primary_span]` instead error: `#[suggestion_part(...)]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:528:5 + --> $DIR/subdiagnostic-derive.rs:529:5 | LL | #[suggestion_part(code = "...")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -295,7 +295,7 @@ LL | #[suggestion_part(code = "...")] = help: `#[suggestion_part(...)]` is only valid in multipart suggestions error: suggestion without `#[primary_span]` field - --> $DIR/subdiagnostic-derive.rs:522:1 + --> $DIR/subdiagnostic-derive.rs:523:1 | LL | / #[suggestion(no_crate_example, code = "...")] LL | | @@ -307,7 +307,7 @@ LL | | } | |_^ error: invalid nested attribute - --> $DIR/subdiagnostic-derive.rs:537:42 + --> $DIR/subdiagnostic-derive.rs:538:42 | LL | #[multipart_suggestion(no_crate_example, code = "...", applicability = "machine-applicable")] | ^^^^ @@ -315,7 +315,7 @@ LL | #[multipart_suggestion(no_crate_example, code = "...", applicability = "mac = help: only `style` and `applicability` are valid nested attributes error: multipart suggestion without any `#[suggestion_part(...)]` fields - --> $DIR/subdiagnostic-derive.rs:537:1 + --> $DIR/subdiagnostic-derive.rs:538:1 | LL | / #[multipart_suggestion(no_crate_example, code = "...", applicability = "machine-applicable")] LL | | @@ -326,19 +326,19 @@ LL | | } | |_^ error: `#[suggestion_part(...)]` attribute without `code = "..."` - --> $DIR/subdiagnostic-derive.rs:547:5 + --> $DIR/subdiagnostic-derive.rs:548:5 | LL | #[suggestion_part] | ^^^^^^^^^^^^^^^^^^ error: unexpected end of input, unexpected token in nested attribute, expected ident - --> $DIR/subdiagnostic-derive.rs:555:23 + --> $DIR/subdiagnostic-derive.rs:556:23 | LL | #[suggestion_part()] | ^ error: `#[primary_span]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:564:5 + --> $DIR/subdiagnostic-derive.rs:565:5 | LL | #[primary_span] | ^^^^^^^^^^^^^^^ @@ -346,7 +346,7 @@ LL | #[primary_span] = help: multipart suggestions use one or more `#[suggestion_part]`s rather than one `#[primary_span]` error: multipart suggestion without any `#[suggestion_part(...)]` fields - --> $DIR/subdiagnostic-derive.rs:561:1 + --> $DIR/subdiagnostic-derive.rs:562:1 | LL | / #[multipart_suggestion(no_crate_example)] LL | | @@ -358,121 +358,121 @@ LL | | } | |_^ error: `#[suggestion_part(...)]` attribute without `code = "..."` - --> $DIR/subdiagnostic-derive.rs:572:5 + --> $DIR/subdiagnostic-derive.rs:573:5 | LL | #[suggestion_part] | ^^^^^^^^^^^^^^^^^^ error: `code` is the only valid nested attribute - --> $DIR/subdiagnostic-derive.rs:578:23 + --> $DIR/subdiagnostic-derive.rs:579:23 | LL | #[suggestion_part(foo = "bar")] | ^^^ error: the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan` - --> $DIR/subdiagnostic-derive.rs:582:5 + --> $DIR/subdiagnostic-derive.rs:583:5 | LL | #[suggestion_part(code = "...")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan` - --> $DIR/subdiagnostic-derive.rs:585:5 + --> $DIR/subdiagnostic-derive.rs:586:5 | LL | #[suggestion_part()] | ^^^^^^^^^^^^^^^^^^^^ error: unexpected end of input, unexpected token in nested attribute, expected ident - --> $DIR/subdiagnostic-derive.rs:575:23 + --> $DIR/subdiagnostic-derive.rs:576:23 | LL | #[suggestion_part()] | ^ error: expected `,` - --> $DIR/subdiagnostic-derive.rs:578:27 + --> $DIR/subdiagnostic-derive.rs:579:27 | LL | #[suggestion_part(foo = "bar")] | ^ error: specified multiple times - --> $DIR/subdiagnostic-derive.rs:593:37 + --> $DIR/subdiagnostic-derive.rs:594:37 | LL | #[suggestion_part(code = "...", code = ",,,")] | ^^^^ | note: previously specified here - --> $DIR/subdiagnostic-derive.rs:593:23 + --> $DIR/subdiagnostic-derive.rs:594:23 | LL | #[suggestion_part(code = "...", code = ",,,")] | ^^^^ error: `#[applicability]` has no effect if all `#[suggestion]`/`#[multipart_suggestion]` attributes have a static `applicability = "..."` - --> $DIR/subdiagnostic-derive.rs:622:5 + --> $DIR/subdiagnostic-derive.rs:623:5 | LL | #[applicability] | ^^^^^^^^^^^^^^^^ error: expected exactly one string literal for `code = ...` - --> $DIR/subdiagnostic-derive.rs:670:34 + --> $DIR/subdiagnostic-derive.rs:671:34 | LL | #[suggestion_part(code("foo"))] | ^ error: unexpected token - --> $DIR/subdiagnostic-derive.rs:670:28 + --> $DIR/subdiagnostic-derive.rs:671:28 | LL | #[suggestion_part(code("foo"))] | ^^^^^ error: expected exactly one string literal for `code = ...` - --> $DIR/subdiagnostic-derive.rs:680:41 + --> $DIR/subdiagnostic-derive.rs:681:41 | LL | #[suggestion_part(code("foo", "bar"))] | ^ error: unexpected token - --> $DIR/subdiagnostic-derive.rs:680:28 + --> $DIR/subdiagnostic-derive.rs:681:28 | LL | #[suggestion_part(code("foo", "bar"))] | ^^^^^ error: expected exactly one string literal for `code = ...` - --> $DIR/subdiagnostic-derive.rs:690:30 + --> $DIR/subdiagnostic-derive.rs:691:30 | LL | #[suggestion_part(code(3))] | ^ error: unexpected token - --> $DIR/subdiagnostic-derive.rs:690:28 + --> $DIR/subdiagnostic-derive.rs:691:28 | LL | #[suggestion_part(code(3))] | ^ error: expected exactly one string literal for `code = ...` - --> $DIR/subdiagnostic-derive.rs:700:29 + --> $DIR/subdiagnostic-derive.rs:701:29 | LL | #[suggestion_part(code())] | ^ error: expected string literal - --> $DIR/subdiagnostic-derive.rs:712:30 + --> $DIR/subdiagnostic-derive.rs:713:30 | LL | #[suggestion_part(code = 3)] | ^ error: specified multiple times - --> $DIR/subdiagnostic-derive.rs:754:1 + --> $DIR/subdiagnostic-derive.rs:755:1 | LL | #[suggestion(no_crate_example, code = "", style = "hidden", style = "normal")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: previously specified here - --> $DIR/subdiagnostic-derive.rs:754:1 + --> $DIR/subdiagnostic-derive.rs:755:1 | LL | #[suggestion(no_crate_example, code = "", style = "hidden", style = "normal")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: `#[suggestion_hidden(...)]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:763:1 + --> $DIR/subdiagnostic-derive.rs:764:1 | LL | #[suggestion_hidden(no_crate_example, code = "")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -480,7 +480,7 @@ LL | #[suggestion_hidden(no_crate_example, code = "")] = help: Use `#[suggestion(..., style = "hidden")]` instead error: `#[suggestion_hidden(...)]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:771:1 + --> $DIR/subdiagnostic-derive.rs:772:1 | LL | #[suggestion_hidden(no_crate_example, code = "", style = "normal")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -488,7 +488,7 @@ LL | #[suggestion_hidden(no_crate_example, code = "", style = "normal")] = help: Use `#[suggestion(..., style = "hidden")]` instead error: invalid suggestion style - --> $DIR/subdiagnostic-derive.rs:779:51 + --> $DIR/subdiagnostic-derive.rs:780:51 | LL | #[suggestion(no_crate_example, code = "", style = "foo")] | ^^^^^ @@ -496,31 +496,31 @@ LL | #[suggestion(no_crate_example, code = "", style = "foo")] = help: valid styles are `normal`, `short`, `hidden`, `verbose` and `tool-only` error: expected `= "xxx"` - --> $DIR/subdiagnostic-derive.rs:787:49 + --> $DIR/subdiagnostic-derive.rs:788:49 | LL | #[suggestion(no_crate_example, code = "", style = 42)] | ^ error: a diagnostic slug must be the first argument to the attribute - --> $DIR/subdiagnostic-derive.rs:795:48 + --> $DIR/subdiagnostic-derive.rs:796:48 | LL | #[suggestion(no_crate_example, code = "", style)] | ^ error: expected `= "xxx"` - --> $DIR/subdiagnostic-derive.rs:803:48 + --> $DIR/subdiagnostic-derive.rs:804:48 | LL | #[suggestion(no_crate_example, code = "", style("foo"))] | ^ error: expected `,` - --> $DIR/subdiagnostic-derive.rs:803:48 + --> $DIR/subdiagnostic-derive.rs:804:48 | LL | #[suggestion(no_crate_example, code = "", style("foo"))] | ^ error: `#[primary_span]` is not a valid attribute - --> $DIR/subdiagnostic-derive.rs:815:5 + --> $DIR/subdiagnostic-derive.rs:816:5 | LL | #[primary_span] | ^^^^^^^^^^^^^^^ @@ -529,7 +529,7 @@ LL | #[primary_span] = help: to create a suggestion with multiple spans, use `#[multipart_suggestion]` instead error: suggestion without `#[primary_span]` field - --> $DIR/subdiagnostic-derive.rs:812:1 + --> $DIR/subdiagnostic-derive.rs:813:1 | LL | / #[suggestion(no_crate_example, code = "")] LL | | @@ -541,67 +541,67 @@ LL | | } | |_^ error: cannot find attribute `foo` in this scope - --> $DIR/subdiagnostic-derive.rs:65:3 + --> $DIR/subdiagnostic-derive.rs:66:3 | LL | #[foo] | ^^^ error: cannot find attribute `foo` in this scope - --> $DIR/subdiagnostic-derive.rs:160:3 + --> $DIR/subdiagnostic-derive.rs:161:3 | LL | #[foo] | ^^^ error: cannot find attribute `bar` in this scope - --> $DIR/subdiagnostic-derive.rs:174:7 + --> $DIR/subdiagnostic-derive.rs:175:7 | LL | #[bar] | ^^^ error: cannot find attribute `bar` in this scope - --> $DIR/subdiagnostic-derive.rs:186:7 + --> $DIR/subdiagnostic-derive.rs:187:7 | LL | #[bar = "..."] | ^^^ error: cannot find attribute `bar` in this scope - --> $DIR/subdiagnostic-derive.rs:198:7 + --> $DIR/subdiagnostic-derive.rs:199:7 | LL | #[bar = 4] | ^^^ error: cannot find attribute `bar` in this scope - --> $DIR/subdiagnostic-derive.rs:210:7 + --> $DIR/subdiagnostic-derive.rs:211:7 | LL | #[bar("...")] | ^^^ error: cannot find attribute `bar` in this scope - --> $DIR/subdiagnostic-derive.rs:271:7 + --> $DIR/subdiagnostic-derive.rs:272:7 | LL | #[bar] | ^^^ error: cannot find attribute `bar` in this scope - --> $DIR/subdiagnostic-derive.rs:282:7 + --> $DIR/subdiagnostic-derive.rs:283:7 | LL | #[bar = "..."] | ^^^ error: cannot find attribute `bar` in this scope - --> $DIR/subdiagnostic-derive.rs:293:7 + --> $DIR/subdiagnostic-derive.rs:294:7 | LL | #[bar("...")] | ^^^ error[E0425]: cannot find value `slug` in module `crate::fluent_generated` - --> $DIR/subdiagnostic-derive.rs:123:9 + --> $DIR/subdiagnostic-derive.rs:124:9 | LL | #[label(slug)] | ^^^^ not found in `crate::fluent_generated` error[E0425]: cannot find value `__code_29` in this scope - --> $DIR/subdiagnostic-derive.rs:706:10 + --> $DIR/subdiagnostic-derive.rs:707:10 | LL | #[derive(Subdiagnostic)] | ^^^^^^^^^^^^^ not found in this scope diff --git a/tests/ui/attributes/invalid-repr.rs b/tests/ui/attributes/invalid-repr.rs new file mode 100644 index 00000000000..10a487c127e --- /dev/null +++ b/tests/ui/attributes/invalid-repr.rs @@ -0,0 +1,5 @@ +#[repr(align(16))] +//~^ ERROR attribute should be applied to a struct, enum, function, associated function, or union +pub type Foo = i32; + +fn main() {} diff --git a/tests/ui/attributes/invalid-repr.stderr b/tests/ui/attributes/invalid-repr.stderr new file mode 100644 index 00000000000..98a6a24b3c4 --- /dev/null +++ b/tests/ui/attributes/invalid-repr.stderr @@ -0,0 +1,12 @@ +error[E0517]: attribute should be applied to a struct, enum, function, associated function, or union + --> $DIR/invalid-repr.rs:1:8 + | +LL | #[repr(align(16))] + | ^^^^^^^^^ +LL | +LL | pub type Foo = i32; + | ------------------- not a struct, enum, function, associated function, or union + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0517`. diff --git a/tests/ui/borrowck/borrowck-block-unint.rs b/tests/ui/borrowck/borrowck-block-uninit.rs index 8d13b25a357..8d13b25a357 100644 --- a/tests/ui/borrowck/borrowck-block-unint.rs +++ b/tests/ui/borrowck/borrowck-block-uninit.rs diff --git a/tests/ui/borrowck/borrowck-block-unint.stderr b/tests/ui/borrowck/borrowck-block-uninit.stderr index f47921a9752..1a5969586f2 100644 --- a/tests/ui/borrowck/borrowck-block-unint.stderr +++ b/tests/ui/borrowck/borrowck-block-uninit.stderr @@ -1,5 +1,5 @@ error[E0381]: used binding `x` isn't initialized - --> $DIR/borrowck-block-unint.rs:4:11 + --> $DIR/borrowck-block-uninit.rs:4:11 | LL | let x: isize; | - binding declared here but left uninitialized diff --git a/tests/ui/codegen/freeze-on-polymorphic-projection.rs b/tests/ui/codegen/freeze-on-polymorphic-projection.rs new file mode 100644 index 00000000000..edc79f8fd94 --- /dev/null +++ b/tests/ui/codegen/freeze-on-polymorphic-projection.rs @@ -0,0 +1,19 @@ +// build-pass +// compile-flags: -Copt-level=1 --crate-type=lib + +#![feature(specialization)] +//~^ WARN the feature `specialization` is incomplete + +pub unsafe trait Storage { + type Handle; +} + +pub unsafe trait MultipleStorage: Storage {} + +default unsafe impl<S> Storage for S where S: MultipleStorage {} + +// Make sure that we call is_freeze on `(S::Handle,)` in the param-env of `ice`, +// instead of in an empty, reveal-all param-env. +pub fn ice<S: Storage>(boxed: (S::Handle,)) -> (S::Handle,) { + boxed +} diff --git a/tests/ui/codegen/freeze-on-polymorphic-projection.stderr b/tests/ui/codegen/freeze-on-polymorphic-projection.stderr new file mode 100644 index 00000000000..903cb2ff6aa --- /dev/null +++ b/tests/ui/codegen/freeze-on-polymorphic-projection.stderr @@ -0,0 +1,12 @@ +warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/freeze-on-polymorphic-projection.rs:4:12 + | +LL | #![feature(specialization)] + | ^^^^^^^^^^^^^^ + | + = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information + = help: consider using `min_specialization` instead, which is more stable and complete + = note: `#[warn(incomplete_features)]` on by default + +warning: 1 warning emitted + diff --git a/tests/ui/consts/auxiliary/foreign-generic-mismatch-with-const-arg.rs b/tests/ui/consts/auxiliary/foreign-generic-mismatch-with-const-arg.rs new file mode 100644 index 00000000000..85b0c6c9df8 --- /dev/null +++ b/tests/ui/consts/auxiliary/foreign-generic-mismatch-with-const-arg.rs @@ -0,0 +1 @@ +pub fn test<const N: usize, T>() {} diff --git a/tests/ui/consts/foreign-generic-mismatch-with-const-arg.rs b/tests/ui/consts/foreign-generic-mismatch-with-const-arg.rs new file mode 100644 index 00000000000..7590abbd827 --- /dev/null +++ b/tests/ui/consts/foreign-generic-mismatch-with-const-arg.rs @@ -0,0 +1,8 @@ +// aux-build: foreign-generic-mismatch-with-const-arg.rs + +extern crate foreign_generic_mismatch_with_const_arg; + +fn main() { + foreign_generic_mismatch_with_const_arg::test::<1>(); + //~^ ERROR function takes 2 generic arguments but 1 generic argument was supplied +} diff --git a/tests/ui/consts/foreign-generic-mismatch-with-const-arg.stderr b/tests/ui/consts/foreign-generic-mismatch-with-const-arg.stderr new file mode 100644 index 00000000000..4cc03a20514 --- /dev/null +++ b/tests/ui/consts/foreign-generic-mismatch-with-const-arg.stderr @@ -0,0 +1,21 @@ +error[E0107]: function takes 2 generic arguments but 1 generic argument was supplied + --> $DIR/foreign-generic-mismatch-with-const-arg.rs:6:46 + | +LL | foreign_generic_mismatch_with_const_arg::test::<1>(); + | ^^^^ - supplied 1 generic argument + | | + | expected 2 generic arguments + | +note: function defined here, with 2 generic parameters: `N`, `T` + --> $DIR/auxiliary/foreign-generic-mismatch-with-const-arg.rs:1:8 + | +LL | pub fn test<const N: usize, T>() {} + | ^^^^ -------------- - +help: add missing generic argument + | +LL | foreign_generic_mismatch_with_const_arg::test::<1, T>(); + | +++ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0107`. diff --git a/tests/ui/error-codes/E0026-teach.stderr b/tests/ui/error-codes/E0026-teach.stderr index 1a80edcbbe2..3d460490eb3 100644 --- a/tests/ui/error-codes/E0026-teach.stderr +++ b/tests/ui/error-codes/E0026-teach.stderr @@ -4,7 +4,7 @@ error[E0026]: struct `Thing` does not have a field named `z` LL | Thing { x, y, z } => {} | ^ struct `Thing` does not have this field | - = note: This error indicates that a struct pattern attempted to extract a non-existent field from a struct. Struct fields are identified by the name used before the colon : so struct patterns should resemble the declaration of the struct type being matched. + = note: This error indicates that a struct pattern attempted to extract a nonexistent field from a struct. Struct fields are identified by the name used before the colon : so struct patterns should resemble the declaration of the struct type being matched. If you are using shorthand field patterns but want to refer to the struct field by a different name, you should rename it explicitly. diff --git a/tests/ui-fulldeps/lint-group-denied-lint-allowed.rs b/tests/ui/lint-group-denied-lint-allowed.rs index 7498745f206..8156b6ef617 100644 --- a/tests/ui-fulldeps/lint-group-denied-lint-allowed.rs +++ b/tests/ui/lint-group-denied-lint-allowed.rs @@ -1,4 +1,3 @@ -// aux-build:lint-group-plugin-test.rs // check-pass // compile-flags: -D unused -A unused-variables diff --git a/tests/ui-fulldeps/lint-group-forbid-always-trumps-cli.rs b/tests/ui/lint-group-forbid-always-trumps-cli.rs index fc19bc03906..77b792f98d5 100644 --- a/tests/ui-fulldeps/lint-group-forbid-always-trumps-cli.rs +++ b/tests/ui/lint-group-forbid-always-trumps-cli.rs @@ -1,4 +1,3 @@ -// aux-build:lint-group-plugin-test.rs // compile-flags: -F unused -A unused fn main() { diff --git a/tests/ui-fulldeps/lint-group-forbid-always-trumps-cli.stderr b/tests/ui/lint-group-forbid-always-trumps-cli.stderr index 6bab367b0d1..8910af87ca2 100644 --- a/tests/ui-fulldeps/lint-group-forbid-always-trumps-cli.stderr +++ b/tests/ui/lint-group-forbid-always-trumps-cli.stderr @@ -1,5 +1,5 @@ error: unused variable: `x` - --> $DIR/lint-group-forbid-always-trumps-cli.rs:5:9 + --> $DIR/lint-group-forbid-always-trumps-cli.rs:4:9 | LL | let x = 1; | ^ help: if this is intentional, prefix it with an underscore: `_x` diff --git a/tests/ui/lint/unused/issue-54538-unused-parens-lint.fixed b/tests/ui/lint/unused/issue-54538-unused-parens-lint.fixed index 71ebaea8ed2..9c52ca5577e 100644 --- a/tests/ui/lint/unused/issue-54538-unused-parens-lint.fixed +++ b/tests/ui/lint/unused/issue-54538-unused-parens-lint.fixed @@ -21,17 +21,32 @@ fn lint_on_top_level() { let _ = |a: u8| 0; //~ ERROR unnecessary parentheses around pattern } -fn _no_lint_attr() { +fn no_lint_attr() { let _x = #[allow(dead_code)] (1 + 2); } -fn _no_lint_yeet() -> Result<(), ()> { +fn no_lint_yeet() -> Result<(), ()> { #[allow(unreachable_code)] if (do yeet) {} Ok(()) } +fn no_lint_ops() { + #![allow(unreachable_code, irrefutable_let_patterns)] + if ((..{}) == ..{}) {} + if (!return) {} + loop { match (() = () = () = break {}) {} } + while let () = (*&mut false |= true && return) {} +} + +fn lint_break_if_not_followed_by_block() { + #![allow(unreachable_code)] + loop { if break {} } //~ ERROR unnecessary parentheses + loop { if break ({ println!("hello") }) {} } //~ ERROR unnecessary parentheses + loop { if (break { println!("hello") }) {} } +} + // Don't lint in these cases (#64106). fn or_patterns_no_lint() { match Box::new(0) { diff --git a/tests/ui/lint/unused/issue-54538-unused-parens-lint.rs b/tests/ui/lint/unused/issue-54538-unused-parens-lint.rs index 28b662dd024..196ecf0c1bb 100644 --- a/tests/ui/lint/unused/issue-54538-unused-parens-lint.rs +++ b/tests/ui/lint/unused/issue-54538-unused-parens-lint.rs @@ -21,17 +21,32 @@ fn lint_on_top_level() { let _ = |(a): u8| 0; //~ ERROR unnecessary parentheses around pattern } -fn _no_lint_attr() { +fn no_lint_attr() { let _x = #[allow(dead_code)] (1 + 2); } -fn _no_lint_yeet() -> Result<(), ()> { +fn no_lint_yeet() -> Result<(), ()> { #[allow(unreachable_code)] if (do yeet) {} Ok(()) } +fn no_lint_ops() { + #![allow(unreachable_code, irrefutable_let_patterns)] + if ((..{}) == ..{}) {} + if (!return) {} + loop { match (() = () = () = break {}) {} } + while let () = (*&mut false |= true && return) {} +} + +fn lint_break_if_not_followed_by_block() { + #![allow(unreachable_code)] + loop { if (break) {} } //~ ERROR unnecessary parentheses + loop { if (break ({ println!("hello") })) {} } //~ ERROR unnecessary parentheses + loop { if (break { println!("hello") }) {} } +} + // Don't lint in these cases (#64106). fn or_patterns_no_lint() { match Box::new(0) { diff --git a/tests/ui/lint/unused/issue-54538-unused-parens-lint.stderr b/tests/ui/lint/unused/issue-54538-unused-parens-lint.stderr index a5e69e6d938..f916bba8194 100644 --- a/tests/ui/lint/unused/issue-54538-unused-parens-lint.stderr +++ b/tests/ui/lint/unused/issue-54538-unused-parens-lint.stderr @@ -75,8 +75,32 @@ LL - let _ = |(a): u8| 0; LL + let _ = |a: u8| 0; | +error: unnecessary parentheses around `if` condition + --> $DIR/issue-54538-unused-parens-lint.rs:45:15 + | +LL | loop { if (break) {} } + | ^ ^ + | +help: remove these parentheses + | +LL - loop { if (break) {} } +LL + loop { if break {} } + | + +error: unnecessary parentheses around `if` condition + --> $DIR/issue-54538-unused-parens-lint.rs:46:15 + | +LL | loop { if (break ({ println!("hello") })) {} } + | ^ ^ + | +help: remove these parentheses + | +LL - loop { if (break ({ println!("hello") })) {} } +LL + loop { if break ({ println!("hello") }) {} } + | + error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:56:12 + --> $DIR/issue-54538-unused-parens-lint.rs:71:12 | LL | if let (0 | 1) = 0 {} | ^ ^ @@ -88,7 +112,7 @@ LL + if let 0 | 1 = 0 {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:57:13 + --> $DIR/issue-54538-unused-parens-lint.rs:72:13 | LL | if let ((0 | 1),) = (0,) {} | ^ ^ @@ -100,7 +124,7 @@ LL + if let (0 | 1,) = (0,) {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:58:13 + --> $DIR/issue-54538-unused-parens-lint.rs:73:13 | LL | if let [(0 | 1)] = [0] {} | ^ ^ @@ -112,7 +136,7 @@ LL + if let [0 | 1] = [0] {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:59:16 + --> $DIR/issue-54538-unused-parens-lint.rs:74:16 | LL | if let 0 | (1 | 2) = 0 {} | ^ ^ @@ -124,7 +148,7 @@ LL + if let 0 | 1 | 2 = 0 {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:61:15 + --> $DIR/issue-54538-unused-parens-lint.rs:76:15 | LL | if let TS((0 | 1)) = TS(0) {} | ^ ^ @@ -136,7 +160,7 @@ LL + if let TS(0 | 1) = TS(0) {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:63:20 + --> $DIR/issue-54538-unused-parens-lint.rs:78:20 | LL | if let NS { f: (0 | 1) } = (NS { f: 0 }) {} | ^ ^ @@ -148,7 +172,7 @@ LL + if let NS { f: 0 | 1 } = (NS { f: 0 }) {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:73:9 + --> $DIR/issue-54538-unused-parens-lint.rs:88:9 | LL | (_) => {} | ^ ^ @@ -160,7 +184,7 @@ LL + _ => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:74:9 + --> $DIR/issue-54538-unused-parens-lint.rs:89:9 | LL | (y) => {} | ^ ^ @@ -172,7 +196,7 @@ LL + y => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:75:9 + --> $DIR/issue-54538-unused-parens-lint.rs:90:9 | LL | (ref r) => {} | ^ ^ @@ -184,7 +208,7 @@ LL + ref r => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:76:9 + --> $DIR/issue-54538-unused-parens-lint.rs:91:9 | LL | (e @ 1...2) => {} | ^ ^ @@ -196,7 +220,7 @@ LL + e @ 1...2 => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:82:9 + --> $DIR/issue-54538-unused-parens-lint.rs:97:9 | LL | (e @ &(1...2)) => {} | ^ ^ @@ -208,7 +232,7 @@ LL + e @ &(1...2) => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:83:10 + --> $DIR/issue-54538-unused-parens-lint.rs:98:10 | LL | &(_) => {} | ^ ^ @@ -220,7 +244,7 @@ LL + &_ => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:94:9 + --> $DIR/issue-54538-unused-parens-lint.rs:109:9 | LL | (_) => {} | ^ ^ @@ -232,7 +256,7 @@ LL + _ => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:95:9 + --> $DIR/issue-54538-unused-parens-lint.rs:110:9 | LL | (y) => {} | ^ ^ @@ -244,7 +268,7 @@ LL + y => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:96:9 + --> $DIR/issue-54538-unused-parens-lint.rs:111:9 | LL | (ref r) => {} | ^ ^ @@ -256,7 +280,7 @@ LL + ref r => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:97:9 + --> $DIR/issue-54538-unused-parens-lint.rs:112:9 | LL | (e @ 1..=2) => {} | ^ ^ @@ -268,7 +292,7 @@ LL + e @ 1..=2 => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:103:9 + --> $DIR/issue-54538-unused-parens-lint.rs:118:9 | LL | (e @ &(1..=2)) => {} | ^ ^ @@ -280,7 +304,7 @@ LL + e @ &(1..=2) => {} | error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:104:10 + --> $DIR/issue-54538-unused-parens-lint.rs:119:10 | LL | &(_) => {} | ^ ^ @@ -291,5 +315,5 @@ LL - &(_) => {} LL + &_ => {} | -error: aborting due to 24 previous errors +error: aborting due to 26 previous errors diff --git a/tests/ui/meta/no_std-extern-libc.rs b/tests/ui/meta/no_std-extern-libc.rs new file mode 100644 index 00000000000..763ea740a27 --- /dev/null +++ b/tests/ui/meta/no_std-extern-libc.rs @@ -0,0 +1,7 @@ +// Test that `download-rustc` doesn't put duplicate copies of libc in the sysroot. +// check-pass +#![crate_type = "lib"] +#![no_std] +#![feature(rustc_private)] + +extern crate libc; diff --git a/tests/ui/type-alias-enum-variants/enum-variant-generic-args.stderr b/tests/ui/type-alias-enum-variants/enum-variant-generic-args.stderr index 758ff31ff70..e24cb11288e 100644 --- a/tests/ui/type-alias-enum-variants/enum-variant-generic-args.stderr +++ b/tests/ui/type-alias-enum-variants/enum-variant-generic-args.stderr @@ -115,7 +115,7 @@ LL | Self::SVariant::<()> { v: () }; | not allowed on this type | = note: enum variants can't have type parameters -help: you might have meant to specity type parameters on enum `Enum` +help: you might have meant to specify type parameters on enum `Enum` | LL - Self::SVariant::<()> { v: () }; LL + Enum::<()>::SVariant { v: () }; @@ -196,7 +196,7 @@ LL | Self::<()>::SVariant::<()> { v: () }; | not allowed on this type | = note: enum variants can't have type parameters -help: you might have meant to specity type parameters on enum `Enum` +help: you might have meant to specify type parameters on enum `Enum` | LL - Self::<()>::SVariant::<()> { v: () }; LL + Enum::<()>::SVariant { v: () }; @@ -359,7 +359,7 @@ LL | Alias::SVariant::<()> { v: () }; | not allowed on this type | = note: enum variants can't have type parameters -help: you might have meant to specity type parameters on enum `Enum` +help: you might have meant to specify type parameters on enum `Enum` | LL - Alias::SVariant::<()> { v: () }; LL + Alias::<()>::SVariant { v: () }; @@ -374,7 +374,7 @@ LL | Alias::<()>::SVariant::<()> { v: () }; | not allowed on this type | = note: enum variants can't have type parameters -help: you might have meant to specity type parameters on enum `Enum` +help: you might have meant to specify type parameters on enum `Enum` | LL - Alias::<()>::SVariant::<()> { v: () }; LL + Alias::<()>::SVariant { v: () }; @@ -389,7 +389,7 @@ LL | AliasFixed::SVariant::<()> { v: () }; | not allowed on this type | = note: enum variants can't have type parameters -help: you might have meant to specity type parameters on enum `Enum` +help: you might have meant to specify type parameters on enum `Enum` | LL - AliasFixed::SVariant::<()> { v: () }; LL + AliasFixed::<()>::SVariant { v: () }; @@ -432,7 +432,7 @@ LL | AliasFixed::<()>::SVariant::<()> { v: () }; | not allowed on this type | = note: enum variants can't have type parameters -help: you might have meant to specity type parameters on enum `Enum` +help: you might have meant to specify type parameters on enum `Enum` | LL - AliasFixed::<()>::SVariant::<()> { v: () }; LL + AliasFixed::<()>::SVariant { v: () }; diff --git a/tests/ui/typeck/bad-index-due-to-nested.rs b/tests/ui/typeck/bad-index-due-to-nested.rs new file mode 100644 index 00000000000..2564b530004 --- /dev/null +++ b/tests/ui/typeck/bad-index-due-to-nested.rs @@ -0,0 +1,27 @@ +use std::hash::Hash; +use std::marker::PhantomData; +use std::ops::Index; + +struct HashMap<K, V>(PhantomData<(K, V)>); + +impl<K, V> Index<&K> for HashMap<K, V> +where + K: Hash, + V: Copy, +{ + type Output = V; + + fn index(&self, k: &K) -> &V { + todo!() + } +} + +fn index<'a, K, V>(map: &'a HashMap<K, V>, k: K) -> &'a V { + map[k] + //~^ ERROR the trait bound `K: Hash` is not satisfied + //~| ERROR the trait bound `V: Copy` is not satisfied + //~| ERROR mismatched types + //~| ERROR mismatched types +} + +fn main() {} diff --git a/tests/ui/typeck/bad-index-due-to-nested.stderr b/tests/ui/typeck/bad-index-due-to-nested.stderr new file mode 100644 index 00000000000..e03b06b336e --- /dev/null +++ b/tests/ui/typeck/bad-index-due-to-nested.stderr @@ -0,0 +1,64 @@ +error[E0277]: the trait bound `K: Hash` is not satisfied + --> $DIR/bad-index-due-to-nested.rs:20:5 + | +LL | map[k] + | ^^^ the trait `Hash` is not implemented for `K` + | +note: required by a bound in `<HashMap<K, V> as Index<&K>>` + --> $DIR/bad-index-due-to-nested.rs:9:8 + | +LL | K: Hash, + | ^^^^ required by this bound in `<HashMap<K, V> as Index<&K>>` +help: consider restricting type parameter `K` + | +LL | fn index<'a, K: std::hash::Hash, V>(map: &'a HashMap<K, V>, k: K) -> &'a V { + | +++++++++++++++++ + +error[E0277]: the trait bound `V: Copy` is not satisfied + --> $DIR/bad-index-due-to-nested.rs:20:5 + | +LL | map[k] + | ^^^ the trait `Copy` is not implemented for `V` + | +note: required by a bound in `<HashMap<K, V> as Index<&K>>` + --> $DIR/bad-index-due-to-nested.rs:10:8 + | +LL | V: Copy, + | ^^^^ required by this bound in `<HashMap<K, V> as Index<&K>>` +help: consider restricting type parameter `V` + | +LL | fn index<'a, K, V: std::marker::Copy>(map: &'a HashMap<K, V>, k: K) -> &'a V { + | +++++++++++++++++++ + +error[E0308]: mismatched types + --> $DIR/bad-index-due-to-nested.rs:20:9 + | +LL | fn index<'a, K, V>(map: &'a HashMap<K, V>, k: K) -> &'a V { + | - this type parameter +LL | map[k] + | ^ + | | + | expected `&K`, found type parameter `K` + | help: consider borrowing here: `&k` + | + = note: expected reference `&K` + found type parameter `K` + +error[E0308]: mismatched types + --> $DIR/bad-index-due-to-nested.rs:20:5 + | +LL | fn index<'a, K, V>(map: &'a HashMap<K, V>, k: K) -> &'a V { + | - this type parameter ----- expected `&'a V` because of return type +LL | map[k] + | ^^^^^^ + | | + | expected `&V`, found type parameter `V` + | help: consider borrowing here: `&map[k]` + | + = note: expected reference `&'a V` + found type parameter `V` + +error: aborting due to 4 previous errors + +Some errors have detailed explanations: E0277, E0308. +For more information about an error, try `rustc --explain E0277`. |