Merge from rustc

Author: The Miri Conjob Bot

.reuse/dep5

@@ -52,7 +52,7 @@ Copyright: 2019 The Crossbeam Project Developers
            The Rust Project Developers (see https://thanks.rust-lang.org)
 License: MIT OR Apache-2.0
 
-Files: library/std/src/sys/pal/unix/locks/fuchsia_mutex.rs
+Files: library/std/src/sys/locks/mutex/fuchsia.rs
 Copyright: 2016 The Fuchsia Authors
            The Rust Project Developers (see https://thanks.rust-lang.org)
 License: BSD-2-Clause AND (MIT OR Apache-2.0)

Cargo.lock

@@ -2627,6 +2627,7 @@ dependencies = [
  "rustc-std-workspace-alloc",
  "rustc-std-workspace-core",
  "ruzstd",
+ "wasmparser",
 ]
 
 [[package]]
@@ -4047,7 +4048,6 @@ dependencies = [
 name = "rustc_interface"
 version = "0.0.0"
 dependencies = [
- "libloading",
  "rustc-rayon",
  "rustc-rayon-core",
  "rustc_ast",
@@ -6128,6 +6128,16 @@ version = "0.2.91"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4f186bd2dcf04330886ce82d6f33dd75a7bfcf69ecf5763b89fcde53b6ac9838"
 
+[[package]]
+name = "wasmparser"
+version = "0.118.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77f1154f1ab868e2a01d9834a805faca7bf8b50d041b4ca714d005d0dab1c50c"
+dependencies = [
+ "indexmap",
+ "semver",
+]
+
 [[package]]
 name = "web-sys"
 version = "0.3.68"

compiler/rustc_arena/src/lib.rs

@@ -95,7 +95,7 @@ impl<T> ArenaChunk<T> {
         unsafe {
             if mem::size_of::<T>() == 0 {
                 // A pointer as large as possible for zero-sized elements.
-                ptr::invalid_mut(!0)
+                ptr::without_provenance_mut(!0)
             } else {
                 self.start().add(self.storage.len())
             }

compiler/rustc_ast_lowering/src/errors.rs

@@ -1,5 +1,6 @@
 use rustc_errors::{
-    codes::*, AddToDiagnostic, Diagnostic, DiagnosticArgFromDisplay, SubdiagnosticMessageOp,
+    codes::*, AddToDiagnostic, DiagnosticArgFromDisplay, DiagnosticBuilder, EmissionGuarantee,
+    SubdiagnosticMessageOp,
 };
 use rustc_macros::{Diagnostic, Subdiagnostic};
 use rustc_span::{symbol::Ident, Span, Symbol};
@@ -41,7 +42,11 @@ pub struct InvalidAbi {
 pub struct InvalidAbiReason(pub &'static str);
 
 impl AddToDiagnostic for InvalidAbiReason {
-    fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, _: F) {
+    fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
+        self,
+        diag: &mut DiagnosticBuilder<'_, G>,
+        _: F,
+    ) {
         #[allow(rustc::untranslatable_diagnostic)]
         diag.note(self.0);
     }

compiler/rustc_ast_lowering/src/lib.rs

@@ -1636,9 +1636,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
                     if let Some(old_def_id) = self.orig_opt_local_def_id(param) {
                         old_def_id
                     } else {
-                        self.dcx()
-                            .span_delayed_bug(lifetime.ident.span, "no def-id for fresh lifetime");
-                        continue;
+                        self.dcx().span_bug(lifetime.ident.span, "no def-id for fresh lifetime");
                     }
                 }
 

compiler/rustc_ast_passes/src/ast_validation.rs

@@ -881,9 +881,10 @@ impl<'a> Visitor<'a> for AstValidator<'a> {
                         &item.vis,
                         errors::VisibilityNotPermittedNote::TraitImpl,
                     );
-                    // njn: use Dummy here
-                    if let TyKind::Err(_) = self_ty.kind {
-                        this.dcx().emit_err(errors::ObsoleteAuto { span: item.span });
+                    if let TyKind::Dummy = self_ty.kind {
+                        // Abort immediately otherwise the `TyKind::Dummy` will reach HIR lowering,
+                        // which isn't allowed. Not a problem for this obscure, obsolete syntax.
+                        this.dcx().emit_fatal(errors::ObsoleteAuto { span: item.span });
                     }
                     if let (&Unsafe::Yes(span), &ImplPolarity::Negative(sp)) = (unsafety, polarity)
                     {

compiler/rustc_ast_passes/src/errors.rs

@@ -1,7 +1,10 @@
 //! Errors emitted by ast_passes.
 
 use rustc_ast::ParamKindOrd;
-use rustc_errors::{codes::*, AddToDiagnostic, Applicability, Diagnostic, SubdiagnosticMessageOp};
+use rustc_errors::{
+    codes::*, AddToDiagnostic, Applicability, DiagnosticBuilder, EmissionGuarantee,
+    SubdiagnosticMessageOp,
+};
 use rustc_macros::{Diagnostic, Subdiagnostic};
 use rustc_span::{symbol::Ident, Span, Symbol};
 
@@ -372,7 +375,11 @@ pub struct EmptyLabelManySpans(pub Vec<Span>);
 
 // The derive for `Vec<Span>` does multiple calls to `span_label`, adding commas between each
 impl AddToDiagnostic for EmptyLabelManySpans {
-    fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, _: F) {
+    fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
+        self,
+        diag: &mut DiagnosticBuilder<'_, G>,
+        _: F,
+    ) {
         diag.span_labels(self.0, "");
     }
 }
@@ -729,7 +736,11 @@ pub struct StableFeature {
 }
 
 impl AddToDiagnostic for StableFeature {
-    fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, _: F) {
+    fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
+        self,
+        diag: &mut DiagnosticBuilder<'_, G>,
+        _: F,
+    ) {
         diag.arg("name", self.name);
         diag.arg("since", self.since);
         diag.help(fluent::ast_passes_stable_since);

compiler/rustc_ast_passes/src/feature_gate.rs

@@ -22,6 +22,9 @@ macro_rules! gate {
     }};
     ($visitor:expr, $feature:ident, $span:expr, $explain:expr, $help:expr) => {{
         if !$visitor.features.$feature && !$span.allows_unstable(sym::$feature) {
+            // FIXME: make this translatable
+            #[allow(rustc::diagnostic_outside_of_impl)]
+            #[allow(rustc::untranslatable_diagnostic)]
             feature_err(&$visitor.sess, sym::$feature, $span, $explain).with_help($help).emit();
         }
     }};

compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs

@@ -6,9 +6,7 @@
 use either::Either;
 use rustc_data_structures::captures::Captures;
 use rustc_data_structures::fx::FxIndexSet;
-use rustc_errors::{
-    codes::*, struct_span_code_err, Applicability, Diagnostic, DiagnosticBuilder, MultiSpan,
-};
+use rustc_errors::{codes::*, struct_span_code_err, Applicability, DiagnosticBuilder, MultiSpan};
 use rustc_hir as hir;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::intravisit::{walk_block, walk_expr, Visitor};
@@ -635,7 +633,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
 
     fn suggest_assign_value(
         &self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         moved_place: PlaceRef<'tcx>,
         sugg_span: Span,
     ) {
@@ -674,7 +672,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
 
     fn suggest_borrow_fn_like(
         &self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         ty: Ty<'tcx>,
         move_sites: &[MoveSite],
         value_name: &str,
@@ -742,7 +740,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
 
     fn suggest_cloning(
         &self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         ty: Ty<'tcx>,
         expr: &hir::Expr<'_>,
         span: Span,
@@ -778,7 +776,12 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
         }
     }
 
-    fn suggest_adding_copy_bounds(&self, err: &mut Diagnostic, ty: Ty<'tcx>, span: Span) {
+    fn suggest_adding_copy_bounds(
+        &self,
+        err: &mut DiagnosticBuilder<'_>,
+        ty: Ty<'tcx>,
+        span: Span,
+    ) {
         let tcx = self.infcx.tcx;
         let generics = tcx.generics_of(self.mir_def_id());
 
@@ -1225,7 +1228,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
     #[instrument(level = "debug", skip(self, err))]
     fn suggest_using_local_if_applicable(
         &self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         location: Location,
         issued_borrow: &BorrowData<'tcx>,
         explanation: BorrowExplanation<'tcx>,
@@ -1321,7 +1324,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
 
     fn suggest_slice_method_if_applicable(
         &self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         place: Place<'tcx>,
         borrowed_place: Place<'tcx>,
     ) {
@@ -1430,7 +1433,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
     /// ```
     pub(crate) fn explain_iterator_advancement_in_for_loop_if_applicable(
         &self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         span: Span,
         issued_spans: &UseSpans<'tcx>,
     ) {
@@ -1617,7 +1620,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
     /// ```
     fn suggest_using_closure_argument_instead_of_capture(
         &self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         borrowed_place: Place<'tcx>,
         issued_spans: &UseSpans<'tcx>,
     ) {
@@ -1751,7 +1754,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
 
     fn suggest_binding_for_closure_capture_self(
         &self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         issued_spans: &UseSpans<'tcx>,
     ) {
         let UseSpans::ClosureUse { capture_kind_span, .. } = issued_spans else { return };
@@ -2997,7 +3000,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
         self.buffer_error(err);
     }
 
-    fn explain_deref_coercion(&mut self, loan: &BorrowData<'tcx>, err: &mut Diagnostic) {
+    fn explain_deref_coercion(&mut self, loan: &BorrowData<'tcx>, err: &mut DiagnosticBuilder<'_>) {
         let tcx = self.infcx.tcx;
         if let (
             Some(Terminator {
@@ -3532,7 +3535,11 @@ enum AnnotatedBorrowFnSignature<'tcx> {
 impl<'tcx> AnnotatedBorrowFnSignature<'tcx> {
     /// Annotate the provided diagnostic with information about borrow from the fn signature that
     /// helps explain.
-    pub(crate) fn emit(&self, cx: &mut MirBorrowckCtxt<'_, 'tcx>, diag: &mut Diagnostic) -> String {
+    pub(crate) fn emit(
+        &self,
+        cx: &mut MirBorrowckCtxt<'_, 'tcx>,
+        diag: &mut DiagnosticBuilder<'_>,
+    ) -> String {
         match self {
             &AnnotatedBorrowFnSignature::Closure { argument_ty, argument_span } => {
                 diag.span_label(

compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs

@@ -3,7 +3,7 @@
 #![allow(rustc::diagnostic_outside_of_impl)]
 #![allow(rustc::untranslatable_diagnostic)]
 
-use rustc_errors::{Applicability, Diagnostic};
+use rustc_errors::{Applicability, DiagnosticBuilder};
 use rustc_hir as hir;
 use rustc_hir::intravisit::Visitor;
 use rustc_index::IndexSlice;
@@ -65,7 +65,7 @@ impl<'tcx> BorrowExplanation<'tcx> {
         tcx: TyCtxt<'tcx>,
         body: &Body<'tcx>,
         local_names: &IndexSlice<Local, Option<Symbol>>,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         borrow_desc: &str,
         borrow_span: Option<Span>,
         multiple_borrow_span: Option<(Span, Span)>,
@@ -306,7 +306,7 @@ impl<'tcx> BorrowExplanation<'tcx> {
     fn add_object_lifetime_default_note(
         &self,
         tcx: TyCtxt<'tcx>,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         unsize_ty: Ty<'tcx>,
     ) {
         if let ty::Adt(def, args) = unsize_ty.kind() {
@@ -359,7 +359,7 @@ impl<'tcx> BorrowExplanation<'tcx> {
 
     fn add_lifetime_bound_suggestion_to_diagnostic(
         &self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         category: &ConstraintCategory<'tcx>,
         span: Span,
         region_name: &RegionName,

compiler/rustc_borrowck/src/diagnostics/mod.rs

@@ -5,7 +5,7 @@ use crate::session_diagnostics::{
     CaptureVarKind, CaptureVarPathUseCause, OnClosureNote,
 };
 use itertools::Itertools;
-use rustc_errors::{Applicability, Diagnostic};
+use rustc_errors::{Applicability, DiagnosticBuilder};
 use rustc_hir as hir;
 use rustc_hir::def::{CtorKind, Namespace};
 use rustc_hir::CoroutineKind;
@@ -80,7 +80,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
         &self,
         location: Location,
         place: PlaceRef<'tcx>,
-        diag: &mut Diagnostic,
+        diag: &mut DiagnosticBuilder<'_>,
     ) -> bool {
         debug!("add_moved_or_invoked_closure_note: location={:?} place={:?}", location, place);
         let mut target = place.local_or_deref_local();
@@ -588,7 +588,7 @@ impl UseSpans<'_> {
     pub(super) fn args_subdiag(
         self,
         dcx: &rustc_errors::DiagCtxt,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         f: impl FnOnce(Span) -> CaptureArgLabel,
     ) {
         if let UseSpans::ClosureUse { args_span, .. } = self {
@@ -601,7 +601,7 @@ impl UseSpans<'_> {
     pub(super) fn var_path_only_subdiag(
         self,
         dcx: &rustc_errors::DiagCtxt,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         action: crate::InitializationRequiringAction,
     ) {
         use crate::InitializationRequiringAction::*;
@@ -638,7 +638,7 @@ impl UseSpans<'_> {
     pub(super) fn var_subdiag(
         self,
         dcx: &rustc_errors::DiagCtxt,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         kind: Option<rustc_middle::mir::BorrowKind>,
         f: impl FnOnce(hir::ClosureKind, Span) -> CaptureVarCause,
     ) {
@@ -1010,7 +1010,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
 
     fn explain_captures(
         &mut self,
-        err: &mut Diagnostic,
+        err: &mut DiagnosticBuilder<'_>,
         span: Span,
         move_span: Span,
         move_spans: UseSpans<'tcx>,