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Auto merge of #120576 - nnethercote:merge-Diagnostic-DiagnosticBuilder, r=davidtwco

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Overhaul `Diagnostic` and `DiagnosticBuilder`

Implements the first part of https://github.com/rust-lang/compiler-team/issues/722, which moves functionality and use away from `Diagnostic`, onto `DiagnosticBuilder`.

Likely follow-ups:
- Move things around, because this PR was written to minimize diff size, so some things end up in sub-optimal places. E.g. `DiagnosticBuilder` has impls in both `diagnostic.rs` and `diagnostic_builder.rs`.
- Rename `Diagnostic` as `DiagInner` and `DiagnosticBuilder` as `Diag`.

r? `@davidtwco`
This commit is contained in:
bors 2024-02-20 12:05:09 +00:00
commit 29f87ade9d
104 changed files with 1038 additions and 849 deletions
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9
compiler/rustc_ast_lowering/src/errors.rs
View File

@ -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);
}

17
compiler/rustc_ast_passes/src/errors.rs
View File

@ -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);

3
compiler/rustc_ast_passes/src/feature_gate.rs
View File

@ -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();
}
}};

35
compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
View File

@ -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(

8
compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs
View File

@ -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,

12
compiler/rustc_borrowck/src/diagnostics/mod.rs
View File

@ -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>,

17
compiler/rustc_borrowck/src/diagnostics/move_errors.rs
View File

@ -1,7 +1,7 @@
#![allow(rustc::diagnostic_outside_of_impl)]
#![allow(rustc::untranslatable_diagnostic)]
use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_middle::mir::*;
use rustc_middle::ty::{self, Ty};
use rustc_mir_dataflow::move_paths::{LookupResult, MovePathIndex};
@ -437,7 +437,12 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
err
}
fn add_move_hints(&self, error: GroupedMoveError<'tcx>, err: &mut Diagnostic, span: Span) {
fn add_move_hints(
&self,
error: GroupedMoveError<'tcx>,
err: &mut DiagnosticBuilder<'_>,
span: Span,
) {
match error {
GroupedMoveError::MovesFromPlace { mut binds_to, move_from, .. } => {
self.add_borrow_suggestions(err, span);
@ -500,7 +505,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
}
}
fn add_borrow_suggestions(&self, err: &mut Diagnostic, span: Span) {
fn add_borrow_suggestions(&self, err: &mut DiagnosticBuilder<'_>, span: Span) {
match self.infcx.tcx.sess.source_map().span_to_snippet(span) {
Ok(snippet) if snippet.starts_with('*') => {
err.span_suggestion_verbose(
@ -521,7 +526,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
}
}
fn add_move_error_suggestions(&self, err: &mut Diagnostic, binds_to: &[Local]) {
fn add_move_error_suggestions(&self, err: &mut DiagnosticBuilder<'_>, binds_to: &[Local]) {
let mut suggestions: Vec<(Span, String, String)> = Vec::new();
for local in binds_to {
let bind_to = &self.body.local_decls[*local];
@ -573,7 +578,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
}
}
fn add_move_error_details(&self, err: &mut Diagnostic, binds_to: &[Local]) {
fn add_move_error_details(&self, err: &mut DiagnosticBuilder<'_>, binds_to: &[Local]) {
for (j, local) in binds_to.iter().enumerate() {
let bind_to = &self.body.local_decls[*local];
let binding_span = bind_to.source_info.span;
@ -610,7 +615,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
/// expansion of a packed struct.
/// Such errors happen because derive macro expansions shy away from taking
/// references to the struct's fields since doing so would be undefined behaviour
fn add_note_for_packed_struct_derive(&self, err: &mut Diagnostic, local: Local) {
fn add_note_for_packed_struct_derive(&self, err: &mut DiagnosticBuilder<'_>, local: Local) {
let local_place: PlaceRef<'tcx> = local.into();
let local_ty = local_place.ty(self.body.local_decls(), self.infcx.tcx).ty.peel_refs();

17
compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs
View File

@ -2,7 +2,7 @@
#![allow(rustc::untranslatable_diagnostic)]
use hir::ExprKind;
use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_hir as hir;
use rustc_hir::intravisit::Visitor;
use rustc_hir::Node;
@ -540,7 +540,12 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
}
}
fn suggest_map_index_mut_alternatives(&self, ty: Ty<'tcx>, err: &mut Diagnostic, span: Span) {
fn suggest_map_index_mut_alternatives(
&self,
ty: Ty<'tcx>,
err: &mut DiagnosticBuilder<'tcx>,
span: Span,
) {
let Some(adt) = ty.ty_adt_def() else { return };
let did = adt.did();
if self.infcx.tcx.is_diagnostic_item(sym::HashMap, did)
@ -548,7 +553,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
{
struct V<'a, 'tcx> {
assign_span: Span,
err: &'a mut Diagnostic,
err: &'a mut DiagnosticBuilder<'tcx>,
ty: Ty<'tcx>,
suggested: bool,
}
@ -790,7 +795,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
tcx: TyCtxt<'_>,
closure_local_def_id: hir::def_id::LocalDefId,
the_place_err: PlaceRef<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) {
let tables = tcx.typeck(closure_local_def_id);
if let Some((span, closure_kind_origin)) = tcx.closure_kind_origin(closure_local_def_id) {
@ -852,7 +857,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
// Attempt to search similar mutable associated items for suggestion.
// In the future, attempt in all path but initially for RHS of for_loop
fn suggest_similar_mut_method_for_for_loop(&self, err: &mut Diagnostic, span: Span) {
fn suggest_similar_mut_method_for_for_loop(&self, err: &mut DiagnosticBuilder<'_>, span: Span) {
use hir::{
BorrowKind, Expr,
ExprKind::{AddrOf, Block, Call, MethodCall},
@ -936,7 +941,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
}
/// Targeted error when encountering an `FnMut` closure where an `Fn` closure was expected.
fn expected_fn_found_fn_mut_call(&self, err: &mut Diagnostic, sp: Span, act: &str) {
fn expected_fn_found_fn_mut_call(&self, err: &mut DiagnosticBuilder<'_>, sp: Span, act: &str) {
err.span_label(sp, format!("cannot {act}"));
let hir = self.infcx.tcx.hir();

6
compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs
View File

@ -5,7 +5,7 @@
#![allow(rustc::untranslatable_diagnostic)]
use rustc_data_structures::fx::FxIndexSet;
use rustc_errors::Diagnostic;
use rustc_errors::DiagnosticBuilder;
use rustc_middle::ty::RegionVid;
use smallvec::SmallVec;
use std::collections::BTreeMap;
@ -158,13 +158,13 @@ impl OutlivesSuggestionBuilder {
self.constraints_to_add.entry(fr).or_default().push(outlived_fr);
}
/// Emit an intermediate note on the given `Diagnostic` if the involved regions are
/// Emit an intermediate note on the given `DiagnosticBuilder` if the involved regions are
/// suggestable.
pub(crate) fn intermediate_suggestion(
&mut self,
mbcx: &MirBorrowckCtxt<'_, '_>,
errci: &ErrorConstraintInfo<'_>,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
) {
// Emit an intermediate note.
let fr_name = self.region_vid_to_name(mbcx, errci.fr);

27
compiler/rustc_borrowck/src/diagnostics/region_errors.rs
View File

@ -1,7 +1,7 @@
//! Error reporting machinery for lifetime errors.
use rustc_data_structures::fx::FxIndexSet;
use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder, MultiSpan};
use rustc_errors::{Applicability, DiagnosticBuilder, MultiSpan};
use rustc_hir as hir;
use rustc_hir::def::Res::Def;
use rustc_hir::def_id::DefId;
@ -251,6 +251,9 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
hrtb_bounds.iter().for_each(|bound| {
let Trait(PolyTraitRef { trait_ref, span: trait_span, .. }, _) = bound else { return; };
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
diag.span_note(
*trait_span,
"due to current limitations in the borrow checker, this implies a `'static` lifetime"
@ -421,6 +424,9 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
/// ```
///
/// Here we would be invoked with `fr = 'a` and `outlived_fr = 'b`.
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
pub(crate) fn report_region_error(
&mut self,
fr: RegionVid,
@ -685,12 +691,18 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
borrowck_errors::borrowed_data_escapes_closure(self.infcx.tcx, *span, escapes_from);
if let Some((Some(outlived_fr_name), outlived_fr_span)) = outlived_fr_name_and_span {
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
diag.span_label(
outlived_fr_span,
format!("`{outlived_fr_name}` declared here, outside of the {escapes_from} body",),
);
}
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
if let Some((Some(fr_name), fr_span)) = fr_name_and_span {
diag.span_label(
fr_span,
@ -714,6 +726,9 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
let outlived_fr_region_name = self.give_region_a_name(errci.outlived_fr).unwrap();
outlived_fr_region_name.highlight_region_name(&mut diag);
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
diag.span_label(
*span,
format!(
@ -808,7 +823,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
/// ```
fn add_static_impl_trait_suggestion(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
fr: RegionVid,
// We need to pass `fr_name` - computing it again will label it twice.
fr_name: RegionName,
@ -897,7 +912,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
fn maybe_suggest_constrain_dyn_trait_impl(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
f: Region<'tcx>,
o: Region<'tcx>,
category: &ConstraintCategory<'tcx>,
@ -959,7 +974,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
#[instrument(skip(self, err), level = "debug")]
fn suggest_constrain_dyn_trait_in_impl(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
found_dids: &FxIndexSet<DefId>,
ident: Ident,
self_ty: &hir::Ty<'_>,
@ -994,7 +1009,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
fn suggest_adding_lifetime_params(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
sub: RegionVid,
sup: RegionVid,
) {
@ -1023,7 +1038,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
suggest_adding_lifetime_params(self.infcx.tcx, sub, ty_sup, ty_sub, diag);
}
fn suggest_move_on_borrowing_closure(&self, diag: &mut Diagnostic) {
fn suggest_move_on_borrowing_closure(&self, diag: &mut DiagnosticBuilder<'_>) {
let map = self.infcx.tcx.hir();
let body_id = map.body_owned_by(self.mir_def_id());
let expr = &map.body(body_id).value.peel_blocks();

4
compiler/rustc_borrowck/src/diagnostics/region_name.rs
View File

@ -5,7 +5,7 @@ use std::fmt::{self, Display};
use std::iter;
use rustc_data_structures::fx::IndexEntry;
use rustc_errors::Diagnostic;
use rustc_errors::DiagnosticBuilder;
use rustc_hir as hir;
use rustc_hir::def::{DefKind, Res};
use rustc_middle::ty::print::RegionHighlightMode;
@ -106,7 +106,7 @@ impl RegionName {
}
}
pub(crate) fn highlight_region_name(&self, diag: &mut Diagnostic) {
pub(crate) fn highlight_region_name(&self, diag: &mut DiagnosticBuilder<'_>) {
match &self.source {
RegionNameSource::NamedLateParamRegion(span)
| RegionNameSource::NamedEarlyParamRegion(span) => {

2
compiler/rustc_borrowck/src/lib.rs
View File

@ -2497,6 +2497,8 @@ mod diags {
}
for (_, (mut diag, count)) in std::mem::take(&mut self.diags.buffered_mut_errors) {
if count > 10 {
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
diag.note(format!("...and {} other attempted mutable borrows", count - 10));
}
self.diags.buffered_diags.push(BufferedDiag::Error(diag));

4
compiler/rustc_borrowck/src/region_infer/mod.rs
View File

@ -5,7 +5,7 @@ use rustc_data_structures::binary_search_util;
use rustc_data_structures::frozen::Frozen;
use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
use rustc_data_structures::graph::scc::Sccs;
use rustc_errors::Diagnostic;
use rustc_errors::DiagnosticBuilder;
use rustc_hir::def_id::CRATE_DEF_ID;
use rustc_index::{IndexSlice, IndexVec};
use rustc_infer::infer::outlives::test_type_match;
@ -592,7 +592,7 @@ impl<'tcx> RegionInferenceContext<'tcx> {
}
/// Adds annotations for `#[rustc_regions]`; see `UniversalRegions::annotate`.
pub(crate) fn annotate(&self, tcx: TyCtxt<'tcx>, err: &mut Diagnostic) {
pub(crate) fn annotate(&self, tcx: TyCtxt<'tcx>, err: &mut DiagnosticBuilder<'_, ()>) {
self.universal_regions.annotate(tcx, err)
}

4
compiler/rustc_borrowck/src/universal_regions.rs
View File

@ -16,7 +16,7 @@
#![allow(rustc::untranslatable_diagnostic)]
use rustc_data_structures::fx::FxIndexMap;
use rustc_errors::Diagnostic;
use rustc_errors::DiagnosticBuilder;
use rustc_hir::def_id::{DefId, LocalDefId};
use rustc_hir::lang_items::LangItem;
use rustc_hir::BodyOwnerKind;
@ -343,7 +343,7 @@ impl<'tcx> UniversalRegions<'tcx> {
/// that this region imposes on others. The methods in this file
/// handle the part about dumping the inference context internal
/// state.
pub(crate) fn annotate(&self, tcx: TyCtxt<'tcx>, err: &mut Diagnostic) {
pub(crate) fn annotate(&self, tcx: TyCtxt<'tcx>, err: &mut DiagnosticBuilder<'_, ()>) {
match self.defining_ty {
DefiningTy::Closure(def_id, args) => {
let v = with_no_trimmed_paths!(

10
compiler/rustc_builtin_macros/src/errors.rs
View File

@ -1,6 +1,6 @@
use rustc_errors::{
codes::*, AddToDiagnostic, DiagCtxt, Diagnostic, DiagnosticBuilder, EmissionGuarantee,
IntoDiagnostic, Level, MultiSpan, SingleLabelManySpans, SubdiagnosticMessageOp,
codes::*, AddToDiagnostic, DiagCtxt, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic,
Level, MultiSpan, SingleLabelManySpans, SubdiagnosticMessageOp,
};
use rustc_macros::{Diagnostic, Subdiagnostic};
use rustc_span::{symbol::Ident, Span, Symbol};
@ -611,7 +611,11 @@ pub(crate) struct FormatUnusedArg {
// Allow the singular form to be a subdiagnostic of the multiple-unused
// form of diagnostic.
impl AddToDiagnostic for FormatUnusedArg {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, f: F) {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
f: F,
) {
diag.arg("named", self.named);
let msg = f(diag, crate::fluent_generated::builtin_macros_format_unused_arg.into());
diag.span_label(self.span, msg);

4
compiler/rustc_codegen_ssa/src/back/write.rs
View File

@ -1856,9 +1856,7 @@ impl SharedEmitterMain {
Ok(SharedEmitterMessage::Diagnostic(diag)) => {
let dcx = sess.dcx();
let mut d = rustc_errors::Diagnostic::new_with_messages(diag.lvl, diag.msgs);
if let Some(code) = diag.code {
d.code(code);
}
d.code = diag.code; // may be `None`, that's ok
d.replace_args(diag.args);
dcx.emit_diagnostic(d);
}

7
compiler/rustc_const_eval/src/transform/check_consts/ops.rs
View File

@ -93,6 +93,9 @@ pub struct FnCallNonConst<'tcx> {
}
impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> {
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, _: Span) -> DiagnosticBuilder<'tcx> {
let FnCallNonConst { caller, callee, args, span, call_source, feature } = *self;
let ConstCx { tcx, param_env, .. } = *ccx;
@ -321,6 +324,8 @@ impl<'tcx> NonConstOp<'tcx> for FnCallUnstable {
.dcx()
.create_err(errors::UnstableConstFn { span, def_path: ccx.tcx.def_path_str(def_id) });
// FIXME: make this translatable
#[allow(rustc::untranslatable_diagnostic)]
if ccx.is_const_stable_const_fn() {
err.help("const-stable functions can only call other const-stable functions");
} else if ccx.tcx.sess.is_nightly_build() {
@ -591,6 +596,8 @@ impl<'tcx> NonConstOp<'tcx> for StaticAccess {
span,
format!("referencing statics in {}s is unstable", ccx.const_kind(),),
);
// FIXME: make this translatable
#[allow(rustc::untranslatable_diagnostic)]
err
.note("`static` and `const` variables can refer to other `const` variables. A `const` variable, however, cannot refer to a `static` variable.")
.help("to fix this, the value can be extracted to a `const` and then used.");

212
compiler/rustc_errors/src/diagnostic.rs
View File

@ -12,6 +12,7 @@ use rustc_span::{Span, DUMMY_SP};
use std::borrow::Cow;
use std::fmt::{self, Debug};
use std::hash::{Hash, Hasher};
use std::ops::{Deref, DerefMut};
use std::panic::Location;
/// Error type for `Diagnostic`'s `suggestions` field, indicating that
@ -71,17 +72,21 @@ where
Self: Sized,
{
/// Add a subdiagnostic to an existing diagnostic.
fn add_to_diagnostic(self, diag: &mut Diagnostic) {
fn add_to_diagnostic<G: EmissionGuarantee>(self, diag: &mut DiagnosticBuilder<'_, G>) {
self.add_to_diagnostic_with(diag, |_, m| m);
}
/// Add a subdiagnostic to an existing diagnostic where `f` is invoked on every message used
/// (to optionally perform eager translation).
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, f: F);
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
f: F,
);
}
pub trait SubdiagnosticMessageOp =
Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage;
pub trait SubdiagnosticMessageOp<G> =
Fn(&mut DiagnosticBuilder<'_, G>, SubdiagnosticMessage) -> SubdiagnosticMessage;
/// Trait implemented by lint types. This should not be implemented manually. Instead, use
/// `#[derive(LintDiagnostic)]` -- see [rustc_macros::LintDiagnostic].
@ -93,6 +98,10 @@ pub trait DecorateLint<'a, G: EmissionGuarantee> {
fn msg(&self) -> DiagnosticMessage;
}
/// The main part of a diagnostic. Note that `DiagnosticBuilder`, which wraps
/// this type, is used for most operations, and should be used instead whenever
/// possible. This type should only be used when `DiagnosticBuilder`'s lifetime
/// causes difficulties, e.g. when storing diagnostics within `DiagCtxt`.
#[must_use]
#[derive(Clone, Debug, Encodable, Decodable)]
pub struct Diagnostic {
@ -289,6 +298,90 @@ impl Diagnostic {
}
}
// See comment on `DiagnosticBuilder::subdiagnostic_message_to_diagnostic_message`.
pub(crate) fn subdiagnostic_message_to_diagnostic_message(
&self,
attr: impl Into<SubdiagnosticMessage>,
) -> DiagnosticMessage {
let msg =
self.messages.iter().map(|(msg, _)| msg).next().expect("diagnostic with no messages");
msg.with_subdiagnostic_message(attr.into())
}
pub(crate) fn sub(
&mut self,
level: Level,
message: impl Into<SubdiagnosticMessage>,
span: MultiSpan,
) {
let sub = SubDiagnostic {
level,
messages: vec![(
self.subdiagnostic_message_to_diagnostic_message(message),
Style::NoStyle,
)],
span,
};
self.children.push(sub);
}
pub(crate) fn arg(&mut self, name: impl Into<DiagnosticArgName>, arg: impl IntoDiagnosticArg) {
self.args.insert(name.into(), arg.into_diagnostic_arg());
}
pub fn args(&self) -> impl Iterator<Item = DiagnosticArg<'_>> {
self.args.iter()
}
pub fn replace_args(&mut self, args: FxIndexMap<DiagnosticArgName, DiagnosticArgValue>) {
self.args = args;
}
}
/// `DiagnosticBuilder` impls many `&mut self -> &mut Self` methods. Each one
/// modifies an existing diagnostic, either in a standalone fashion, e.g.
/// `err.code(code);`, or in a chained fashion to make multiple modifications,
/// e.g. `err.code(code).span(span);`.
///
/// This macro creates an equivalent `self -> Self` method, with a `with_`
/// prefix. This can be used in a chained fashion when making a new diagnostic,
/// e.g. `let err = struct_err(msg).with_code(code);`, or emitting a new
/// diagnostic, e.g. `struct_err(msg).with_code(code).emit();`.
///
/// Although the latter method can be used to modify an existing diagnostic,
/// e.g. `err = err.with_code(code);`, this should be avoided because the former
/// method gives shorter code, e.g. `err.code(code);`.
///
/// Note: the `with_` methods are added only when needed. If you want to use
/// one and it's not defined, feel free to add it.
///
/// Note: any doc comments must be within the `with_fn!` call.
macro_rules! with_fn {
{
$with_f:ident,
$(#[$attrs:meta])*
pub fn $f:ident(&mut $self:ident, $($name:ident: $ty:ty),* $(,)?) -> &mut Self {
$($body:tt)*
}
} => {
// The original function.
$(#[$attrs])*
#[doc = concat!("See [`DiagnosticBuilder::", stringify!($f), "()`].")]
pub fn $f(&mut $self, $($name: $ty),*) -> &mut Self {
$($body)*
}
// The `with_*` variant.
$(#[$attrs])*
#[doc = concat!("See [`DiagnosticBuilder::", stringify!($f), "()`].")]
pub fn $with_f(mut $self, $($name: $ty),*) -> Self {
$self.$f($($name),*);
$self
}
};
}
impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> {
/// Delay emission of this diagnostic as a bug.
///
/// This can be useful in contexts where an error indicates a bug but
@ -309,6 +402,7 @@ impl Diagnostic {
self.level = Level::DelayedBug;
}
with_fn! { with_span_label,
/// Appends a labeled span to the diagnostic.
///
/// Labels are used to convey additional context for the diagnostic's primary span. They will
@ -323,10 +417,12 @@ impl Diagnostic {
/// primary.
#[rustc_lint_diagnostics]
pub fn span_label(&mut self, span: Span, label: impl Into<SubdiagnosticMessage>) -> &mut Self {
self.span.push_span_label(span, self.subdiagnostic_message_to_diagnostic_message(label));
let msg = self.subdiagnostic_message_to_diagnostic_message(label);
self.span.push_span_label(span, msg);
self
}
} }
with_fn! { with_span_labels,
/// Labels all the given spans with the provided label.
/// See [`Self::span_label()`] for more information.
pub fn span_labels(&mut self, spans: impl IntoIterator<Item = Span>, label: &str) -> &mut Self {
@ -334,7 +430,7 @@ impl Diagnostic {
self.span_label(span, label.to_string());
}
self
}
} }
pub fn replace_span_with(&mut self, after: Span, keep_label: bool) -> &mut Self {
let before = self.span.clone();
@ -412,39 +508,40 @@ impl Diagnostic {
self
}
with_fn! { with_note,
/// Add a note attached to this diagnostic.
#[rustc_lint_diagnostics]
pub fn note(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self {
self.sub(Level::Note, msg, MultiSpan::new());
self
}
} }
fn highlighted_note(&mut self, msg: Vec<StringPart>) -> &mut Self {
self.sub_with_highlights(Level::Note, msg, MultiSpan::new());
self
}
/// Prints the span with a note above it.
/// This is like [`Diagnostic::note()`], but it gets its own span.
/// This is like [`DiagnosticBuilder::note()`], but it's only printed once.
pub fn note_once(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self {
self.sub(Level::OnceNote, msg, MultiSpan::new());
self
}
with_fn! { with_span_note,
/// Prints the span with a note above it.
/// This is like [`Diagnostic::note()`], but it gets its own span.
/// This is like [`DiagnosticBuilder::note()`], but it gets its own span.
#[rustc_lint_diagnostics]
pub fn span_note<S: Into<MultiSpan>>(
pub fn span_note(
&mut self,
sp: S,
sp: impl Into<MultiSpan>,
msg: impl Into<SubdiagnosticMessage>,
) -> &mut Self {
self.sub(Level::Note, msg, sp.into());
self
}
} }
/// Prints the span with a note above it.
/// This is like [`Diagnostic::note()`], but it gets its own span.
/// This is like [`DiagnosticBuilder::note_once()`], but it gets its own span.
pub fn span_note_once<S: Into<MultiSpan>>(
&mut self,
sp: S,
@ -454,15 +551,16 @@ impl Diagnostic {
self
}
with_fn! { with_warn,
/// Add a warning attached to this diagnostic.
#[rustc_lint_diagnostics]
pub fn warn(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self {
self.sub(Level::Warning, msg, MultiSpan::new());
self
}
} }
/// Prints the span with a warning above it.
/// This is like [`Diagnostic::warn()`], but it gets its own span.
/// This is like [`DiagnosticBuilder::warn()`], but it gets its own span.
#[rustc_lint_diagnostics]
pub fn span_warn<S: Into<MultiSpan>>(
&mut self,
@ -473,15 +571,15 @@ impl Diagnostic {
self
}
with_fn! { with_help,
/// Add a help message attached to this diagnostic.
#[rustc_lint_diagnostics]
pub fn help(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self {
self.sub(Level::Help, msg, MultiSpan::new());
self
}
} }
/// Prints the span with a help above it.
/// This is like [`Diagnostic::help()`], but it gets its own span.
/// This is like [`DiagnosticBuilder::help()`], but it's only printed once.
pub fn help_once(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self {
self.sub(Level::OnceHelp, msg, MultiSpan::new());
self
@ -494,7 +592,7 @@ impl Diagnostic {
}
/// Prints the span with some help above it.
/// This is like [`Diagnostic::help()`], but it gets its own span.
/// This is like [`DiagnosticBuilder::help()`], but it gets its own span.
#[rustc_lint_diagnostics]
pub fn span_help<S: Into<MultiSpan>>(
&mut self,
@ -531,6 +629,7 @@ impl Diagnostic {
}
}
with_fn! { with_multipart_suggestion,
/// Show a suggestion that has multiple parts to it.
/// In other words, multiple changes need to be applied as part of this suggestion.
pub fn multipart_suggestion(
@ -545,7 +644,7 @@ impl Diagnostic {
applicability,
SuggestionStyle::ShowCode,
)
}
} }
/// Show a suggestion that has multiple parts to it, always as it's own subdiagnostic.
/// In other words, multiple changes need to be applied as part of this suggestion.
@ -562,7 +661,8 @@ impl Diagnostic {
SuggestionStyle::ShowAlways,
)
}
/// [`Diagnostic::multipart_suggestion()`] but you can set the [`SuggestionStyle`].
/// [`DiagnosticBuilder::multipart_suggestion()`] but you can set the [`SuggestionStyle`].
pub fn multipart_suggestion_with_style(
&mut self,
msg: impl Into<SubdiagnosticMessage>,
@ -619,6 +719,7 @@ impl Diagnostic {
)
}
with_fn! { with_span_suggestion,
/// Prints out a message with a suggested edit of the code.
///
/// In case of short messages and a simple suggestion, rustc displays it as a label:
@ -651,9 +752,9 @@ impl Diagnostic {
SuggestionStyle::ShowCode,
);
self
}
} }
/// [`Diagnostic::span_suggestion()`] but you can set the [`SuggestionStyle`].
/// [`DiagnosticBuilder::span_suggestion()`] but you can set the [`SuggestionStyle`].
pub fn span_suggestion_with_style(
&mut self,
sp: Span,
@ -677,6 +778,7 @@ impl Diagnostic {
self
}
with_fn! { with_span_suggestion_verbose,
/// Always show the suggested change.
pub fn span_suggestion_verbose(
&mut self,
@ -693,10 +795,11 @@ impl Diagnostic {
SuggestionStyle::ShowAlways,
);
self
}
} }
with_fn! { with_span_suggestions,
/// Prints out a message with multiple suggested edits of the code.
/// See also [`Diagnostic::span_suggestion()`].
/// See also [`DiagnosticBuilder::span_suggestion()`].
pub fn span_suggestions(
&mut self,
sp: Span,
@ -711,9 +814,8 @@ impl Diagnostic {
applicability,
SuggestionStyle::ShowCode,
)
}
} }
/// [`Diagnostic::span_suggestions()`] but you can set the [`SuggestionStyle`].
pub fn span_suggestions_with_style(
&mut self,
sp: Span,
@ -743,7 +845,7 @@ impl Diagnostic {
/// Prints out a message with multiple suggested edits of the code, where each edit consists of
/// multiple parts.
/// See also [`Diagnostic::multipart_suggestion()`].
/// See also [`DiagnosticBuilder::multipart_suggestion()`].
pub fn multipart_suggestions(
&mut self,
msg: impl Into<SubdiagnosticMessage>,
@ -785,6 +887,7 @@ impl Diagnostic {
self
}
with_fn! { with_span_suggestion_short,
/// Prints out a message with a suggested edit of the code. If the suggestion is presented
/// inline, it will only show the message and not the suggestion.
///
@ -804,7 +907,7 @@ impl Diagnostic {
SuggestionStyle::HideCodeInline,
);
self
}
} }
/// Prints out a message for a suggestion without showing the suggested code.
///
@ -829,6 +932,7 @@ impl Diagnostic {
self
}
with_fn! { with_tool_only_span_suggestion,
/// Adds a suggestion to the JSON output that will not be shown in the CLI.
///
/// This is intended to be used for suggestions that are *very* obvious in what the changes
@ -849,7 +953,7 @@ impl Diagnostic {
SuggestionStyle::CompletelyHidden,
);
self
}
} }
/// Add a subdiagnostic from a type that implements `Subdiagnostic` (see
/// [rustc_macros::Subdiagnostic]). Performs eager translation of any translatable messages
@ -868,45 +972,45 @@ impl Diagnostic {
self
}
pub fn span<S: Into<MultiSpan>>(&mut self, sp: S) -> &mut Self {
with_fn! { with_span,
/// Add a span.
pub fn span(&mut self, sp: impl Into<MultiSpan>) -> &mut Self {
self.span = sp.into();
if let Some(span) = self.span.primary_span() {
self.sort_span = span;
}
self
}
} }
pub fn is_lint(&mut self, name: String, has_future_breakage: bool) -> &mut Self {
self.is_lint = Some(IsLint { name, has_future_breakage });
self
}
with_fn! { with_code,
/// Add an error code.
pub fn code(&mut self, code: ErrCode) -> &mut Self {
self.code = Some(code);
self
}
} }
with_fn! { with_primary_message,
/// Add a primary message.
pub fn primary_message(&mut self, msg: impl Into<DiagnosticMessage>) -> &mut Self {
self.messages[0] = (msg.into(), Style::NoStyle);
self
}
pub fn args(&self) -> impl Iterator<Item = DiagnosticArg<'_>> {
self.args.iter()
}
} }
with_fn! { with_arg,
/// Add an argument.
pub fn arg(
&mut self,
name: impl Into<DiagnosticArgName>,
arg: impl IntoDiagnosticArg,
) -> &mut Self {
self.args.insert(name.into(), arg.into_diagnostic_arg());
self.deref_mut().arg(name, arg);
self
}
pub fn replace_args(&mut self, args: FxIndexMap<DiagnosticArgName, DiagnosticArgValue>) {
self.args = args;
}
} }
/// Helper function that takes a `SubdiagnosticMessage` and returns a `DiagnosticMessage` by
/// combining it with the primary message of the diagnostic (if translatable, otherwise it just
@ -915,9 +1019,7 @@ impl Diagnostic {
&self,
attr: impl Into<SubdiagnosticMessage>,
) -> DiagnosticMessage {
let msg =
self.messages.iter().map(|(msg, _)| msg).next().expect("diagnostic with no messages");
msg.with_subdiagnostic_message(attr.into())
self.deref().subdiagnostic_message_to_diagnostic_message(attr)
}
/// Convenience function for internal use, clients should use one of the
@ -925,15 +1027,7 @@ impl Diagnostic {
///
/// Used by `proc_macro_server` for implementing `server::Diagnostic`.
pub fn sub(&mut self, level: Level, message: impl Into<SubdiagnosticMessage>, span: MultiSpan) {
let sub = SubDiagnostic {
level,
messages: vec![(
self.subdiagnostic_message_to_diagnostic_message(message),
Style::NoStyle,
)],
span,
};
self.children.push(sub);
self.deref_mut().sub(level, message, span);
}
/// Convenience function for internal use, clients should use one of the
@ -946,7 +1040,9 @@ impl Diagnostic {
let sub = SubDiagnostic { level, messages, span };
self.children.push(sub);
}
}
impl Diagnostic {
/// Fields used for Hash, and PartialEq trait
fn keys(
&self,

191
compiler/rustc_errors/src/diagnostic_builder.rs
View File

@ -1,14 +1,8 @@
use crate::diagnostic::IntoDiagnosticArg;
use crate::{DiagCtxt, Level, MultiSpan, StashKey};
use crate::{
Diagnostic, DiagnosticMessage, DiagnosticStyledString, ErrCode, ErrorGuaranteed, ExplicitBug,
SubdiagnosticMessage,
DiagCtxt, Diagnostic, DiagnosticMessage, ErrorGuaranteed, ExplicitBug, Level, StashKey,
};
use rustc_lint_defs::Applicability;
use rustc_span::source_map::Spanned;
use rustc_span::Span;
use std::borrow::Cow;
use std::fmt::{self, Debug};
use std::marker::PhantomData;
use std::ops::{Deref, DerefMut};
@ -35,6 +29,11 @@ where
}
/// Used for emitting structured error messages and other diagnostic information.
/// Wraps a `Diagnostic`, adding some useful things.
/// - The `dcx` field, allowing it to (a) emit itself, and (b) do a drop check
/// that it has been emitted or cancelled.
/// - The `EmissionGuarantee`, which determines the type returned from `emit`.
///
/// Each constructed `DiagnosticBuilder` must be consumed by a function such as
/// `emit`, `cancel`, `delay_as_bug`, or `into_diagnostic`. A panic occurrs if a
/// `DiagnosticBuilder` is dropped without being consumed by one of these
@ -56,9 +55,11 @@ pub struct DiagnosticBuilder<'a, G: EmissionGuarantee = ErrorGuaranteed> {
/// often used as a return value, especially within the frequently-used
/// `PResult` type. In theory, return value optimization (RVO) should avoid
/// unnecessary copying. In practice, it does not (at the time of writing).
diag: Option<Box<Diagnostic>>,
// FIXME(nnethercote) Make private once this moves to diagnostic.rs.
pub(crate) diag: Option<Box<Diagnostic>>,
_marker: PhantomData<G>,
// FIXME(nnethercote) Make private once this moves to diagnostic.rs.
pub(crate) _marker: PhantomData<G>,
}
// Cloning a `DiagnosticBuilder` is a recipe for a diagnostic being emitted
@ -88,18 +89,21 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> {
/// Takes the diagnostic. For use by methods that consume the
/// DiagnosticBuilder: `emit`, `cancel`, etc. Afterwards, `drop` is the
/// only code that will be run on `self`.
fn take_diag(&mut self) -> Diagnostic {
// FIXME(nnethercote) Make private once this moves to diagnostic.rs.
pub(crate) fn take_diag(&mut self) -> Diagnostic {
Box::into_inner(self.diag.take().unwrap())
}
/// Most `emit_producing_guarantee` functions use this as a starting point.
fn emit_producing_nothing(mut self) {
// FIXME(nnethercote) Make private once this moves to diagnostic.rs.
pub(crate) fn emit_producing_nothing(mut self) {
let diag = self.take_diag();
self.dcx.emit_diagnostic(diag);
}
/// `ErrorGuaranteed::emit_producing_guarantee` uses this.
fn emit_producing_error_guaranteed(mut self) -> ErrorGuaranteed {
// FIXME(nnethercote) Make private once this moves to diagnostic.rs.
pub(crate) fn emit_producing_error_guaranteed(mut self) -> ErrorGuaranteed {
let diag = self.take_diag();
// The only error levels that produce `ErrorGuaranteed` are
@ -168,40 +172,6 @@ impl EmissionGuarantee for rustc_span::fatal_error::FatalError {
}
}
/// `DiagnosticBuilder` impls `DerefMut`, which allows access to the fields and
/// methods of the embedded `Diagnostic`. However, that doesn't allow method
/// chaining at the `DiagnosticBuilder` level. Each use of this macro defines
/// two builder methods at that level, both of which wrap the equivalent method
/// in `Diagnostic`.
/// - A `&mut self -> &mut Self` method, with the same name as the underlying
/// `Diagnostic` method. It is mostly to modify existing diagnostics, either
/// in a standalone fashion, e.g. `err.code(code)`, or in a chained fashion
/// to make multiple modifications, e.g. `err.code(code).span(span)`.
/// - A `self -> Self` method, which has a `with_` prefix added.
/// It is mostly used in a chained fashion when producing a new diagnostic,
/// e.g. `let err = struct_err(msg).with_code(code)`, or when emitting a new
/// diagnostic , e.g. `struct_err(msg).with_code(code).emit()`.
///
/// Although the latter method can be used to modify an existing diagnostic,
/// e.g. `err = err.with_code(code)`, this should be avoided because the former
/// method gives shorter code, e.g. `err.code(code)`.
macro_rules! forward {
(
($f:ident, $with_f:ident)($($name:ident: $ty:ty),* $(,)?)
) => {
#[doc = concat!("See [`Diagnostic::", stringify!($f), "()`].")]
pub fn $f(&mut self, $($name: $ty),*) -> &mut Self {
self.diag.as_mut().unwrap().$f($($name),*);
self
}
#[doc = concat!("See [`Diagnostic::", stringify!($f), "()`].")]
pub fn $with_f(mut self, $($name: $ty),*) -> Self {
self.diag.as_mut().unwrap().$f($($name),*);
self
}
};
}
impl<G: EmissionGuarantee> Deref for DiagnosticBuilder<'_, G> {
type Target = Diagnostic;
@ -278,135 +248,6 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> {
self.downgrade_to_delayed_bug();
self.emit()
}
forward!((span_label, with_span_label)(
span: Span,
label: impl Into<SubdiagnosticMessage>,
));
forward!((span_labels, with_span_labels)(
spans: impl IntoIterator<Item = Span>,
label: &str,
));
forward!((note_expected_found, with_note_expected_found)(
expected_label: &dyn fmt::Display,
expected: DiagnosticStyledString,
found_label: &dyn fmt::Display,
found: DiagnosticStyledString,
));
forward!((note_expected_found_extra, with_note_expected_found_extra)(
expected_label: &dyn fmt::Display,
expected: DiagnosticStyledString,
found_label: &dyn fmt::Display,
found: DiagnosticStyledString,
expected_extra: &dyn fmt::Display,
found_extra: &dyn fmt::Display,
));
forward!((note, with_note)(
msg: impl Into<SubdiagnosticMessage>,
));
forward!((note_once, with_note_once)(
msg: impl Into<SubdiagnosticMessage>,
));
forward!((span_note, with_span_note)(
sp: impl Into<MultiSpan>,
msg: impl Into<SubdiagnosticMessage>,
));
forward!((span_note_once, with_span_note_once)(
sp: impl Into<MultiSpan>,
msg: impl Into<SubdiagnosticMessage>,
));
forward!((warn, with_warn)(
msg: impl Into<SubdiagnosticMessage>,
));
forward!((span_warn, with_span_warn)(
sp: impl Into<MultiSpan>,
msg: impl Into<SubdiagnosticMessage>,
));
forward!((help, with_help)(
msg: impl Into<SubdiagnosticMessage>,
));
forward!((help_once, with_help_once)(
msg: impl Into<SubdiagnosticMessage>,
));
forward!((span_help, with_span_help_once)(
sp: impl Into<MultiSpan>,
msg: impl Into<SubdiagnosticMessage>,
));
forward!((multipart_suggestion, with_multipart_suggestion)(
msg: impl Into<SubdiagnosticMessage>,
suggestion: Vec<(Span, String)>,
applicability: Applicability,
));
forward!((multipart_suggestion_verbose, with_multipart_suggestion_verbose)(
msg: impl Into<SubdiagnosticMessage>,
suggestion: Vec<(Span, String)>,
applicability: Applicability,
));
forward!((tool_only_multipart_suggestion, with_tool_only_multipart_suggestion)(
msg: impl Into<SubdiagnosticMessage>,
suggestion: Vec<(Span, String)>,
applicability: Applicability,
));
forward!((span_suggestion, with_span_suggestion)(
sp: Span,
msg: impl Into<SubdiagnosticMessage>,
suggestion: impl ToString,
applicability: Applicability,
));
forward!((span_suggestions, with_span_suggestions)(
sp: Span,
msg: impl Into<SubdiagnosticMessage>,
suggestions: impl IntoIterator<Item = String>,
applicability: Applicability,
));
forward!((multipart_suggestions, with_multipart_suggestions)(
msg: impl Into<SubdiagnosticMessage>,
suggestions: impl IntoIterator<Item = Vec<(Span, String)>>,
applicability: Applicability,
));
forward!((span_suggestion_short, with_span_suggestion_short)(
sp: Span,
msg: impl Into<SubdiagnosticMessage>,
suggestion: impl ToString,
applicability: Applicability,
));
forward!((span_suggestion_verbose, with_span_suggestion_verbose)(
sp: Span,
msg: impl Into<SubdiagnosticMessage>,
suggestion: impl ToString,
applicability: Applicability,
));
forward!((span_suggestion_hidden, with_span_suggestion_hidden)(
sp: Span,
msg: impl Into<SubdiagnosticMessage>,
suggestion: impl ToString,
applicability: Applicability,
));
forward!((tool_only_span_suggestion, with_tool_only_span_suggestion)(
sp: Span,
msg: impl Into<SubdiagnosticMessage>,
suggestion: impl ToString,
applicability: Applicability,
));
forward!((primary_message, with_primary_message)(
msg: impl Into<DiagnosticMessage>,
));
forward!((span, with_span)(
sp: impl Into<MultiSpan>,
));
forward!((is_lint, with_is_lint)(
name: String, has_future_breakage: bool,
));
forward!((code, with_code)(
code: ErrCode,
));
forward!((arg, with_arg)(
name: impl Into<Cow<'static, str>>, arg: impl IntoDiagnosticArg,
));
forward!((subdiagnostic, with_subdiagnostic)(
dcx: &DiagCtxt,
subdiagnostic: impl crate::AddToDiagnostic,
));
}
impl<G: EmissionGuarantee> Debug for DiagnosticBuilder<'_, G> {

30
compiler/rustc_errors/src/diagnostic_impls.rs
View File

@ -299,7 +299,11 @@ pub struct SingleLabelManySpans {
pub label: &'static str,
}
impl AddToDiagnostic for SingleLabelManySpans {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut crate::Diagnostic, _: F) {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
_: F,
) {
diag.span_labels(self.spans, self.label);
}
}
@ -312,23 +316,6 @@ pub struct ExpectedLifetimeParameter {
pub count: usize,
}
#[derive(Subdiagnostic)]
#[note(errors_delayed_at_with_newline)]
pub struct DelayedAtWithNewline {
#[primary_span]
pub span: Span,
pub emitted_at: DiagnosticLocation,
pub note: Backtrace,
}
#[derive(Subdiagnostic)]
#[note(errors_delayed_at_without_newline)]
pub struct DelayedAtWithoutNewline {
#[primary_span]
pub span: Span,
pub emitted_at: DiagnosticLocation,
pub note: Backtrace,
}
impl IntoDiagnosticArg for DiagnosticLocation {
fn into_diagnostic_arg(self) -> DiagnosticArgValue {
DiagnosticArgValue::Str(Cow::from(self.to_string()))
@ -341,13 +328,6 @@ impl IntoDiagnosticArg for Backtrace {
}
}
#[derive(Subdiagnostic)]
#[note(errors_invalid_flushed_delayed_diagnostic_level)]
pub struct InvalidFlushedDelayedDiagnosticLevel {
#[primary_span]
pub span: Span,
pub level: Level,
}
impl IntoDiagnosticArg for Level {
fn into_diagnostic_arg(self) -> DiagnosticArgValue {
DiagnosticArgValue::Str(Cow::from(self.to_string()))

2
compiler/rustc_errors/src/emitter.rs
View File

@ -599,7 +599,7 @@ impl Emitter for SilentEmitter {
fn emit_diagnostic(&mut self, mut diag: Diagnostic) {
if diag.level == Level::Fatal {
diag.note(self.fatal_note.clone());
diag.sub(Level::Note, self.fatal_note.clone(), MultiSpan::new());
self.fatal_dcx.emit_diagnostic(diag);
}
}

84
compiler/rustc_errors/src/lib.rs
View File

@ -46,7 +46,7 @@ pub use diagnostic_builder::{
};
pub use diagnostic_impls::{
DiagnosticArgFromDisplay, DiagnosticSymbolList, ExpectedLifetimeParameter,
IndicateAnonymousLifetime, InvalidFlushedDelayedDiagnosticLevel, SingleLabelManySpans,
IndicateAnonymousLifetime, SingleLabelManySpans,
};
pub use emitter::ColorConfig;
pub use rustc_error_messages::{
@ -62,7 +62,6 @@ pub use snippet::Style;
// See https://github.com/rust-lang/rust/pull/115393.
pub use termcolor::{Color, ColorSpec, WriteColor};
use crate::diagnostic_impls::{DelayedAtWithNewline, DelayedAtWithoutNewline};
use emitter::{is_case_difference, DynEmitter, Emitter, HumanEmitter};
use registry::Registry;
use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet};
@ -1395,9 +1394,8 @@ impl DiagCtxtInner {
};
diagnostic.children.extract_if(already_emitted_sub).for_each(|_| {});
if already_emitted {
diagnostic.note(
"duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`",
);
let msg = "duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`";
diagnostic.sub(Level::Note, msg, MultiSpan::new());
}
if is_error {
@ -1483,6 +1481,16 @@ impl DiagCtxtInner {
self.emitter.translate_message(&message, &args).map_err(Report::new).unwrap().to_string()
}
fn eagerly_translate_for_subdiag(
&self,
diag: &Diagnostic,
msg: impl Into<SubdiagnosticMessage>,
) -> SubdiagnosticMessage {
let args = diag.args();
let msg = diag.subdiagnostic_message_to_diagnostic_message(msg);
self.eagerly_translate(msg, args)
}
fn flush_delayed(&mut self) {
if self.delayed_bugs.is_empty() {
return;
@ -1527,17 +1535,14 @@ impl DiagCtxtInner {
if bug.level != DelayedBug {
// NOTE(eddyb) not panicking here because we're already producing
// an ICE, and the more information the merrier.
let subdiag = InvalidFlushedDelayedDiagnosticLevel {
span: bug.span.primary_span().unwrap(),
level: bug.level,
};
// FIXME: Cannot use `Diagnostic::subdiagnostic` which takes `DiagCtxt`, but it
// just uses `DiagCtxtInner` functions.
subdiag.add_to_diagnostic_with(&mut bug, |diag, msg| {
let args = diag.args();
let msg = diag.subdiagnostic_message_to_diagnostic_message(msg);
self.eagerly_translate(msg, args)
});
//
// We are at the `Diagnostic`/`DiagCtxtInner` level rather than
// the usual `DiagnosticBuilder`/`DiagCtxt` level, so we must
// augment `bug` in a lower-level fashion.
bug.arg("level", bug.level);
let msg = crate::fluent_generated::errors_invalid_flushed_delayed_diagnostic_level;
let msg = self.eagerly_translate_for_subdiag(&bug, msg); // after the `arg` call
bug.sub(Level::Note, msg, bug.span.primary_span().unwrap().into());
}
bug.level = Bug;
@ -1571,39 +1576,22 @@ impl DelayedDiagnostic {
DelayedDiagnostic { inner: diagnostic, note: backtrace }
}
fn decorate(mut self, dcx: &DiagCtxtInner) -> Diagnostic {
// FIXME: Cannot use `Diagnostic::subdiagnostic` which takes `DiagCtxt`, but it
// just uses `DiagCtxtInner` functions.
let subdiag_with = |diag: &mut Diagnostic, msg| {
let args = diag.args();
let msg = diag.subdiagnostic_message_to_diagnostic_message(msg);
dcx.eagerly_translate(msg, args)
};
match self.note.status() {
BacktraceStatus::Captured => {
let inner = &self.inner;
let subdiag = DelayedAtWithNewline {
span: inner.span.primary_span().unwrap_or(DUMMY_SP),
emitted_at: inner.emitted_at.clone(),
note: self.note,
};
subdiag.add_to_diagnostic_with(&mut self.inner, subdiag_with);
}
fn decorate(self, dcx: &DiagCtxtInner) -> Diagnostic {
// We are at the `Diagnostic`/`DiagCtxtInner` level rather than the
// usual `DiagnosticBuilder`/`DiagCtxt` level, so we must construct
// `diag` in a lower-level fashion.
let mut diag = self.inner;
let msg = match self.note.status() {
BacktraceStatus::Captured => crate::fluent_generated::errors_delayed_at_with_newline,
// Avoid the needless newline when no backtrace has been captured,
// the display impl should just be a single line.
_ => {
let inner = &self.inner;
let subdiag = DelayedAtWithoutNewline {
span: inner.span.primary_span().unwrap_or(DUMMY_SP),
emitted_at: inner.emitted_at.clone(),
note: self.note,
_ => crate::fluent_generated::errors_delayed_at_without_newline,
};
subdiag.add_to_diagnostic_with(&mut self.inner, subdiag_with);
}
}
self.inner
diag.arg("emitted_at", diag.emitted_at.clone());
diag.arg("note", self.note);
let msg = dcx.eagerly_translate_for_subdiag(&diag, msg); // after the `arg` calls
diag.sub(Level::Note, msg, diag.span.primary_span().unwrap_or(DUMMY_SP).into());
diag
}
}
@ -1745,9 +1733,9 @@ impl Level {
}
// FIXME(eddyb) this doesn't belong here AFAICT, should be moved to callsite.
pub fn add_elided_lifetime_in_path_suggestion<E: EmissionGuarantee>(
pub fn add_elided_lifetime_in_path_suggestion<G: EmissionGuarantee>(
source_map: &SourceMap,
diag: &mut DiagnosticBuilder<'_, E>,
diag: &mut DiagnosticBuilder<'_, G>,
n: usize,
path_span: Span,
incl_angl_brckt: bool,

2
compiler/rustc_expand/src/base.rs
View File

@ -1176,6 +1176,8 @@ impl<'a> ExtCtxt<'a> {
for (span, notes) in self.expansions.iter() {
let mut db = self.dcx().create_note(errors::TraceMacro { span: *span });
for note in notes {
// FIXME: make this translatable
#[allow(rustc::untranslatable_diagnostic)]
db.note(note.clone());
}
db.emit();

1
compiler/rustc_expand/src/config.rs
View File

@ -384,6 +384,7 @@ impl<'a> StripUnconfigured<'a> {
);
if attr.is_doc_comment() {
#[allow(rustc::untranslatable_diagnostic)]
err.help("`///` is for documentation comments. For a plain comment, use `//`.");
}

10
compiler/rustc_expand/src/mbe/diagnostics.rs
View File

@ -7,7 +7,7 @@ use crate::mbe::{
use rustc_ast::token::{self, Token, TokenKind};
use rustc_ast::tokenstream::TokenStream;
use rustc_ast_pretty::pprust;
use rustc_errors::{Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder, DiagnosticMessage};
use rustc_errors::{Applicability, DiagCtxt, DiagnosticBuilder, DiagnosticMessage};
use rustc_parse::parser::{Parser, Recovery};
use rustc_span::source_map::SourceMap;
use rustc_span::symbol::Ident;
@ -285,7 +285,11 @@ pub(super) fn emit_frag_parse_err(
e.emit();
}
pub(crate) fn annotate_err_with_kind(err: &mut Diagnostic, kind: AstFragmentKind, span: Span) {
pub(crate) fn annotate_err_with_kind(
err: &mut DiagnosticBuilder<'_>,
kind: AstFragmentKind,
span: Span,
) {
match kind {
AstFragmentKind::Ty => {
err.span_label(span, "this macro call doesn't expand to a type");
@ -313,7 +317,7 @@ enum ExplainDocComment {
pub(super) fn annotate_doc_comment(
dcx: &DiagCtxt,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
sm: &SourceMap,
span: Span,
) {

9
compiler/rustc_expand/src/proc_macro_server.rs
View File

@ -10,7 +10,7 @@ use rustc_ast::util::literal::escape_byte_str_symbol;
use rustc_ast_pretty::pprust;
use rustc_data_structures::fx::FxHashMap;
use rustc_data_structures::sync::Lrc;
use rustc_errors::{ErrorGuaranteed, MultiSpan, PResult};
use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed, MultiSpan, PResult};
use rustc_parse::lexer::nfc_normalize;
use rustc_parse::parse_stream_from_source_str;
use rustc_session::parse::ParseSess;
@ -509,13 +509,14 @@ impl server::FreeFunctions for Rustc<'_, '_> {
}
fn emit_diagnostic(&mut self, diagnostic: Diagnostic<Self::Span>) {
let mut diag =
rustc_errors::Diagnostic::new(diagnostic.level.to_internal(), diagnostic.message);
let message = rustc_errors::DiagnosticMessage::from(diagnostic.message);
let mut diag: DiagnosticBuilder<'_, rustc_errors::ErrorGuaranteed> =
DiagnosticBuilder::new(&self.sess().dcx, diagnostic.level.to_internal(), message);
diag.span(MultiSpan::from_spans(diagnostic.spans));
for child in diagnostic.children {
diag.sub(child.level.to_internal(), child.message, MultiSpan::from_spans(child.spans));
}
self.sess().dcx.emit_diagnostic(diag);
diag.emit();
}
}

6
compiler/rustc_hir_analysis/src/astconv/errors.rs
View File

@ -9,7 +9,7 @@ use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
use rustc_data_structures::sorted_map::SortedMap;
use rustc_data_structures::unord::UnordMap;
use rustc_errors::{
codes::*, pluralize, struct_span_code_err, Applicability, Diagnostic, ErrorGuaranteed,
codes::*, pluralize, struct_span_code_err, Applicability, DiagnosticBuilder, ErrorGuaranteed,
};
use rustc_hir as hir;
use rustc_hir::def_id::{DefId, LocalDefId};
@ -371,7 +371,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
// FIXME(fmease): Heavily adapted from `rustc_hir_typeck::method::suggest`. Deduplicate.
fn note_ambiguous_inherent_assoc_type(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
candidates: Vec<DefId>,
span: Span,
) {
@ -429,7 +429,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
let tcx = self.tcx();
let adt_did = self_ty.ty_adt_def().map(|def| def.did());
let add_def_label = |err: &mut Diagnostic| {
let add_def_label = |err: &mut DiagnosticBuilder<'_>| {
if let Some(did) = adt_did {
err.span_label(
tcx.def_span(did),

4
compiler/rustc_hir_analysis/src/astconv/generics.rs
View File

@ -6,7 +6,7 @@ use crate::astconv::{
use crate::structured_errors::{GenericArgsInfo, StructuredDiagnostic, WrongNumberOfGenericArgs};
use rustc_ast::ast::ParamKindOrd;
use rustc_errors::{
codes::*, struct_span_code_err, Applicability, Diagnostic, ErrorGuaranteed, MultiSpan,
codes::*, struct_span_code_err, Applicability, DiagnosticBuilder, ErrorGuaranteed, MultiSpan,
};
use rustc_hir as hir;
use rustc_hir::def::{DefKind, Res};
@ -47,7 +47,7 @@ fn generic_arg_mismatch_err(
}
}
let add_braces_suggestion = |arg: &GenericArg<'_>, err: &mut Diagnostic| {
let add_braces_suggestion = |arg: &GenericArg<'_>, err: &mut DiagnosticBuilder<'_>| {
let suggestions = vec![
(arg.span().shrink_to_lo(), String::from("{ ")),
(arg.span().shrink_to_hi(), String::from(" }")),

12
compiler/rustc_hir_analysis/src/astconv/lint.rs
View File

@ -1,5 +1,5 @@
use rustc_ast::TraitObjectSyntax;
use rustc_errors::{codes::*, Diagnostic, StashKey};
use rustc_errors::{codes::*, DiagnosticBuilder, EmissionGuarantee, StashKey};
use rustc_hir as hir;
use rustc_hir::def::{DefKind, Res};
use rustc_lint_defs::{builtin::BARE_TRAIT_OBJECTS, Applicability};
@ -10,10 +10,10 @@ use super::AstConv;
impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
/// Make sure that we are in the condition to suggest the blanket implementation.
pub(super) fn maybe_lint_blanket_trait_impl(
pub(super) fn maybe_lint_blanket_trait_impl<G: EmissionGuarantee>(
&self,
self_ty: &hir::Ty<'_>,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_, G>,
) {
let tcx = self.tcx();
let parent_id = tcx.hir().get_parent_item(self_ty.hir_id).def_id;
@ -75,7 +75,11 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
}
/// Make sure that we are in the condition to suggest `impl Trait`.
fn maybe_lint_impl_trait(&self, self_ty: &hir::Ty<'_>, diag: &mut Diagnostic) -> bool {
fn maybe_lint_impl_trait(
&self,
self_ty: &hir::Ty<'_>,
diag: &mut DiagnosticBuilder<'_>,
) -> bool {
let tcx = self.tcx();
let parent_id = tcx.hir().get_parent_item(self_ty.hir_id).def_id;
let (sig, generics, owner) = match tcx.hir_node_by_def_id(parent_id) {

6
compiler/rustc_hir_analysis/src/astconv/mod.rs
View File

@ -18,8 +18,8 @@ use crate::require_c_abi_if_c_variadic;
use rustc_ast::TraitObjectSyntax;
use rustc_data_structures::fx::{FxHashSet, FxIndexMap};
use rustc_errors::{
codes::*, struct_span_code_err, Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed,
FatalError, MultiSpan,
codes::*, struct_span_code_err, Applicability, DiagnosticBuilder, ErrorGuaranteed, FatalError,
MultiSpan,
};
use rustc_hir as hir;
use rustc_hir::def::{CtorOf, DefKind, Namespace, Res};
@ -1724,7 +1724,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
pub fn prohibit_generics<'a>(
&self,
segments: impl Iterator<Item = &'a hir::PathSegment<'a>> + Clone,
extend: impl Fn(&mut Diagnostic),
extend: impl Fn(&mut DiagnosticBuilder<'_>),
) -> bool {
let args = segments.clone().flat_map(|segment| segment.args().args);

2
compiler/rustc_hir_analysis/src/check/check.rs
View File

@ -1248,7 +1248,7 @@ fn check_enum(tcx: TyCtxt<'_>, def_id: LocalDefId) {
fn detect_discriminant_duplicate<'tcx>(tcx: TyCtxt<'tcx>, adt: ty::AdtDef<'tcx>) {
// Helper closure to reduce duplicate code. This gets called everytime we detect a duplicate.
// Here `idx` refers to the order of which the discriminant appears, and its index in `vs`
let report = |dis: Discr<'tcx>, idx, err: &mut Diagnostic| {
let report = |dis: Discr<'tcx>, idx, err: &mut DiagnosticBuilder<'_>| {
let var = adt.variant(idx); // HIR for the duplicate discriminant
let (span, display_discr) = match var.discr {
ty::VariantDiscr::Explicit(discr_def_id) => {

2
compiler/rustc_hir_analysis/src/check/mod.rs
View File

@ -78,7 +78,7 @@ use std::num::NonZero;
use rustc_data_structures::fx::{FxHashSet, FxIndexMap};
use rustc_errors::ErrorGuaranteed;
use rustc_errors::{pluralize, struct_span_code_err, Diagnostic, DiagnosticBuilder};
use rustc_errors::{pluralize, struct_span_code_err, DiagnosticBuilder};
use rustc_hir::def_id::{DefId, LocalDefId};
use rustc_hir::intravisit::Visitor;
use rustc_index::bit_set::BitSet;

28
compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs
View File

@ -1,5 +1,5 @@
use crate::structured_errors::StructuredDiagnostic;
use rustc_errors::{codes::*, pluralize, Applicability, Diagnostic, DiagnosticBuilder, MultiSpan};
use rustc_errors::{codes::*, pluralize, Applicability, DiagnosticBuilder, MultiSpan};
use rustc_hir as hir;
use rustc_middle::ty::{self as ty, AssocItems, AssocKind, TyCtxt};
use rustc_session::Session;
@ -525,7 +525,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
}
/// Builds the `expected 1 type argument / supplied 2 type arguments` message.
fn notify(&self, err: &mut Diagnostic) {
fn notify(&self, err: &mut DiagnosticBuilder<'_>) {
let (quantifier, bound) = self.get_quantifier_and_bound();
let provided_args = self.num_provided_args();
@ -577,7 +577,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
}
}
fn suggest(&self, err: &mut Diagnostic) {
fn suggest(&self, err: &mut DiagnosticBuilder<'_>) {
debug!(
"suggest(self.provided {:?}, self.gen_args.span(): {:?})",
self.num_provided_args(),
@ -605,7 +605,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
/// ```text
/// type Map = HashMap<String>;
/// ```
fn suggest_adding_args(&self, err: &mut Diagnostic) {
fn suggest_adding_args(&self, err: &mut DiagnosticBuilder<'_>) {
if self.gen_args.parenthesized != hir::GenericArgsParentheses::No {
return;
}
@ -624,7 +624,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
}
}
fn suggest_adding_lifetime_args(&self, err: &mut Diagnostic) {
fn suggest_adding_lifetime_args(&self, err: &mut DiagnosticBuilder<'_>) {
debug!("suggest_adding_lifetime_args(path_segment: {:?})", self.path_segment);
let num_missing_args = self.num_missing_lifetime_args();
let num_params_to_take = num_missing_args;
@ -678,7 +678,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
}
}
fn suggest_adding_type_and_const_args(&self, err: &mut Diagnostic) {
fn suggest_adding_type_and_const_args(&self, err: &mut DiagnosticBuilder<'_>) {
let num_missing_args = self.num_missing_type_or_const_args();
let msg = format!("add missing {} argument{}", self.kind(), pluralize!(num_missing_args));
@ -738,7 +738,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
/// ```compile_fail
/// Into::into::<Option<_>>(42) // suggests considering `Into::<Option<_>>::into(42)`
/// ```
fn suggest_moving_args_from_assoc_fn_to_trait(&self, err: &mut Diagnostic) {
fn suggest_moving_args_from_assoc_fn_to_trait(&self, err: &mut DiagnosticBuilder<'_>) {
let trait_ = match self.tcx.trait_of_item(self.def_id) {
Some(def_id) => def_id,
None => return,
@ -794,7 +794,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
fn suggest_moving_args_from_assoc_fn_to_trait_for_qualified_path(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
qpath: &'tcx hir::QPath<'tcx>,
msg: String,
num_assoc_fn_excess_args: usize,
@ -827,7 +827,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
fn suggest_moving_args_from_assoc_fn_to_trait_for_method_call(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_def_id: DefId,
expr: &'tcx hir::Expr<'tcx>,
msg: String,
@ -881,7 +881,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
/// ```text
/// type Map = HashMap<String, String, String, String>;
/// ```
fn suggest_removing_args_or_generics(&self, err: &mut Diagnostic) {
fn suggest_removing_args_or_generics(&self, err: &mut DiagnosticBuilder<'_>) {
let num_provided_lt_args = self.num_provided_lifetime_args();
let num_provided_type_const_args = self.num_provided_type_or_const_args();
let unbound_types = self.get_unbound_associated_types();
@ -899,7 +899,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
let provided_args_matches_unbound_traits =
unbound_types.len() == num_redundant_type_or_const_args;
let remove_lifetime_args = |err: &mut Diagnostic| {
let remove_lifetime_args = |err: &mut DiagnosticBuilder<'_>| {
let mut lt_arg_spans = Vec::new();
let mut found_redundant = false;
for arg in self.gen_args.args {
@ -940,7 +940,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
);
};
let remove_type_or_const_args = |err: &mut Diagnostic| {
let remove_type_or_const_args = |err: &mut DiagnosticBuilder<'_>| {
let mut gen_arg_spans = Vec::new();
let mut found_redundant = false;
for arg in self.gen_args.args {
@ -1037,7 +1037,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
}
/// Builds the `type defined here` message.
fn show_definition(&self, err: &mut Diagnostic) {
fn show_definition(&self, err: &mut DiagnosticBuilder<'_>) {
let mut spans: MultiSpan = if let Some(def_span) = self.tcx.def_ident_span(self.def_id) {
if self.tcx.sess.source_map().is_span_accessible(def_span) {
def_span.into()
@ -1088,7 +1088,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
}
/// Add note if `impl Trait` is explicitly specified.
fn note_synth_provided(&self, err: &mut Diagnostic) {
fn note_synth_provided(&self, err: &mut DiagnosticBuilder<'_>) {
if !self.is_synth_provided() {
return;
}

8
compiler/rustc_hir_typeck/src/_match.rs
View File

@ -1,6 +1,6 @@
use crate::coercion::{AsCoercionSite, CoerceMany};
use crate::{Diverges, Expectation, FnCtxt, Needs};
use rustc_errors::{Applicability, Diagnostic};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_hir::{
self as hir,
def::{CtorOf, DefKind, Res},
@ -177,7 +177,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn explain_never_type_coerced_to_unit(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
arm: &hir::Arm<'tcx>,
arm_ty: Ty<'tcx>,
prior_arm: Option<(Option<hir::HirId>, Ty<'tcx>, Span)>,
@ -209,7 +209,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn suggest_removing_semicolon_for_coerce(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
arm_ty: Ty<'tcx>,
prior_arm: Option<(Option<hir::HirId>, Ty<'tcx>, Span)>,
@ -303,7 +303,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// `if let PAT = EXPR {}` expressions that could be turned into `let PAT = EXPR;`.
fn explain_if_expr(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
ret_reason: Option<(Span, String)>,
if_span: Span,
cond_expr: &'tcx hir::Expr<'tcx>,

8
compiler/rustc_hir_typeck/src/callee.rs
View File

@ -4,7 +4,7 @@ use super::{Expectation, FnCtxt, TupleArgumentsFlag};
use crate::errors;
use rustc_ast::util::parser::PREC_POSTFIX;
use rustc_errors::{Applicability, Diagnostic, ErrorGuaranteed, StashKey};
use rustc_errors::{Applicability, DiagnosticBuilder, ErrorGuaranteed, StashKey};
use rustc_hir as hir;
use rustc_hir::def::{self, CtorKind, Namespace, Res};
use rustc_hir::def_id::DefId;
@ -347,7 +347,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// likely intention is to call the closure, suggest `(||{})()`. (#55851)
fn identify_bad_closure_def_and_call(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
hir_id: hir::HirId,
callee_node: &hir::ExprKind<'_>,
callee_span: Span,
@ -410,7 +410,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// likely intention is to create an array containing tuples.
fn maybe_suggest_bad_array_definition(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
call_expr: &'tcx hir::Expr<'tcx>,
callee_expr: &'tcx hir::Expr<'tcx>,
) -> bool {
@ -601,7 +601,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// and suggesting the fix if the method probe is successful.
fn suggest_call_as_method(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_, ()>,
segment: &'tcx hir::PathSegment<'tcx>,
arg_exprs: &'tcx [hir::Expr<'tcx>],
call_expr: &'tcx hir::Expr<'tcx>,

8
compiler/rustc_hir_typeck/src/cast.rs
View File

@ -33,7 +33,7 @@ use super::FnCtxt;
use crate::errors;
use crate::type_error_struct;
use hir::ExprKind;
use rustc_errors::{codes::*, Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed};
use rustc_errors::{codes::*, Applicability, DiagnosticBuilder, ErrorGuaranteed};
use rustc_hir as hir;
use rustc_macros::{TypeFoldable, TypeVisitable};
use rustc_middle::mir::Mutability;
@ -983,7 +983,11 @@ impl<'a, 'tcx> CastCheck<'tcx> {
/// Attempt to suggest using `.is_empty` when trying to cast from a
/// collection type to a boolean.
fn try_suggest_collection_to_bool(&self, fcx: &FnCtxt<'a, 'tcx>, err: &mut Diagnostic) {
fn try_suggest_collection_to_bool(
&self,
fcx: &FnCtxt<'a, 'tcx>,
err: &mut DiagnosticBuilder<'_>,
) {
if self.cast_ty.is_bool() {
let derefed = fcx
.autoderef(self.expr_span, self.expr_ty)

10
compiler/rustc_hir_typeck/src/coercion.rs
View File

@ -36,9 +36,7 @@
//! ```
use crate::FnCtxt;
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_id::DefId;
use rustc_hir::intravisit::{self, Visitor};
@ -1439,7 +1437,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> {
&mut self,
fcx: &FnCtxt<'a, 'tcx>,
cause: &ObligationCause<'tcx>,
augment_error: impl FnOnce(&mut Diagnostic),
augment_error: impl FnOnce(&mut DiagnosticBuilder<'_>),
label_unit_as_expected: bool,
) {
self.coerce_inner(
@ -1462,7 +1460,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> {
cause: &ObligationCause<'tcx>,
expression: Option<&'tcx hir::Expr<'tcx>>,
mut expression_ty: Ty<'tcx>,
augment_error: impl FnOnce(&mut Diagnostic),
augment_error: impl FnOnce(&mut DiagnosticBuilder<'_>),
label_expression_as_expected: bool,
) {
// Incorporate whatever type inference information we have
@ -1673,7 +1671,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> {
fn note_unreachable_loop_return(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
tcx: TyCtxt<'tcx>,
expr: &hir::Expr<'tcx>,
ret_exprs: &Vec<&'tcx hir::Expr<'tcx>>,

18
compiler/rustc_hir_typeck/src/demand.rs
View File

@ -1,6 +1,6 @@
use crate::FnCtxt;
use rustc_errors::MultiSpan;
use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_hir as hir;
use rustc_hir::def::Res;
use rustc_hir::intravisit::Visitor;
@ -19,7 +19,7 @@ use super::method::probe;
impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub fn emit_type_mismatch_suggestions(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
expr_ty: Ty<'tcx>,
expected: Ty<'tcx>,
@ -70,7 +70,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub fn emit_coerce_suggestions(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
expr_ty: Ty<'tcx>,
expected: Ty<'tcx>,
@ -280,7 +280,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// with some expectation given by `source`.
pub fn note_source_of_type_mismatch_constraint(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
source: TypeMismatchSource<'tcx>,
) -> bool {
@ -550,7 +550,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
// expected type.
pub fn annotate_loop_expected_due_to_inference(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
error: Option<TypeError<'tcx>>,
) {
@ -673,7 +673,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn annotate_expected_due_to_let_ty(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
error: Option<TypeError<'tcx>>,
) {
@ -782,7 +782,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn annotate_alternative_method_deref(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
error: Option<TypeError<'tcx>>,
) {
@ -1029,7 +1029,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn explain_self_literal(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
@ -1082,7 +1082,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn note_wrong_return_ty_due_to_generic_arg(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
checked_ty: Ty<'tcx>,
) {

24
compiler/rustc_hir_typeck/src/errors.rs
View File

@ -3,8 +3,8 @@ use std::borrow::Cow;
use crate::fluent_generated as fluent;
use rustc_errors::{
codes::*, AddToDiagnostic, Applicability, Diagnostic, DiagnosticArgValue, IntoDiagnosticArg,
MultiSpan, SubdiagnosticMessageOp,
codes::*, AddToDiagnostic, Applicability, DiagnosticArgValue, DiagnosticBuilder,
EmissionGuarantee, IntoDiagnosticArg, MultiSpan, SubdiagnosticMessageOp,
};
use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic};
use rustc_middle::ty::Ty;
@ -195,7 +195,11 @@ pub struct TypeMismatchFruTypo {
}
impl AddToDiagnostic for TypeMismatchFruTypo {
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: F,
) {
diag.arg("expr", self.expr.as_deref().unwrap_or("NONE"));
// Only explain that `a ..b` is a range if it's split up
@ -370,7 +374,11 @@ pub struct RemoveSemiForCoerce {
}
impl AddToDiagnostic for RemoveSemiForCoerce {
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: F,
) {
let mut multispan: MultiSpan = self.semi.into();
multispan.push_span_label(self.expr, fluent::hir_typeck_remove_semi_for_coerce_expr);
multispan.push_span_label(self.ret, fluent::hir_typeck_remove_semi_for_coerce_ret);
@ -541,8 +549,12 @@ pub enum CastUnknownPointerSub {
From(Span),
}
impl AddToDiagnostic for CastUnknownPointerSub {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, f: F) {
impl rustc_errors::AddToDiagnostic for CastUnknownPointerSub {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
f: F,
) {
match self {
CastUnknownPointerSub::To(span) => {
let msg = f(diag, crate::fluent_generated::hir_typeck_label_to);

20
compiler/rustc_hir_typeck/src/expr.rs
View File

@ -26,8 +26,8 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_data_structures::unord::UnordMap;
use rustc_errors::{
codes::*, pluralize, struct_span_code_err, AddToDiagnostic, Applicability, Diagnostic,
DiagnosticBuilder, ErrorGuaranteed, StashKey,
codes::*, pluralize, struct_span_code_err, AddToDiagnostic, Applicability, DiagnosticBuilder,
ErrorGuaranteed, StashKey,
};
use rustc_hir as hir;
use rustc_hir::def::{CtorKind, DefKind, Res};
@ -69,7 +69,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
&self,
expr: &'tcx hir::Expr<'tcx>,
expected_ty: Ty<'tcx>,
extend_err: impl FnOnce(&mut Diagnostic),
extend_err: impl FnOnce(&mut DiagnosticBuilder<'_>),
) -> Ty<'tcx> {
let mut ty = self.check_expr_with_expectation(expr, ExpectHasType(expected_ty));
@ -958,7 +958,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
lhs: &'tcx hir::Expr<'tcx>,
code: ErrCode,
op_span: Span,
adjust_err: impl FnOnce(&mut Diagnostic),
adjust_err: impl FnOnce(&mut DiagnosticBuilder<'_>),
) {
if lhs.is_syntactic_place_expr() {
return;
@ -1223,7 +1223,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
let lhs_ty = self.check_expr_with_needs(lhs, Needs::MutPlace);
let suggest_deref_binop = |err: &mut Diagnostic, rhs_ty: Ty<'tcx>| {
let suggest_deref_binop = |err: &mut DiagnosticBuilder<'_>, rhs_ty: Ty<'tcx>| {
if let Some(lhs_deref_ty) = self.deref_once_mutably_for_diagnostic(lhs_ty) {
// Can only assign if the type is sized, so if `DerefMut` yields a type that is
// unsized, do not suggest dereferencing it.
@ -2008,7 +2008,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
last_expr_field: &hir::ExprField<'tcx>,
variant: &ty::VariantDef,
args: GenericArgsRef<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) {
// I don't use 'is_range_literal' because only double-sided, half-open ranges count.
if let ExprKind::Struct(QPath::LangItem(LangItem::Range, ..), [range_start, range_end], _) =
@ -2524,7 +2524,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn suggest_await_on_field_access(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
field_ident: Ident,
base: &'tcx hir::Expr<'tcx>,
ty: Ty<'tcx>,
@ -2723,7 +2723,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
err.emit()
}
fn point_at_param_definition(&self, err: &mut Diagnostic, param: ty::ParamTy) {
fn point_at_param_definition(&self, err: &mut DiagnosticBuilder<'_>, param: ty::ParamTy) {
let generics = self.tcx.generics_of(self.body_id);
let generic_param = generics.type_param(&param, self.tcx);
if let ty::GenericParamDefKind::Type { synthetic: true, .. } = generic_param.kind {
@ -2742,7 +2742,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn maybe_suggest_array_indexing(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
base: &hir::Expr<'_>,
field: Ident,
@ -2766,7 +2766,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn suggest_first_deref_field(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
base: &hir::Expr<'_>,
field: Ident,

4
compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs
View File

@ -5,7 +5,7 @@ use crate::rvalue_scopes;
use crate::{BreakableCtxt, Diverges, Expectation, FnCtxt, LoweredTy};
use rustc_data_structures::captures::Captures;
use rustc_data_structures::fx::FxHashSet;
use rustc_errors::{Applicability, Diagnostic, ErrorGuaranteed, MultiSpan, StashKey};
use rustc_errors::{Applicability, DiagnosticBuilder, ErrorGuaranteed, MultiSpan, StashKey};
use rustc_hir as hir;
use rustc_hir::def::{CtorOf, DefKind, Res};
use rustc_hir::def_id::DefId;
@ -1020,7 +1020,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(in super::super) fn note_internal_mutation_in_method(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expected: Option<Ty<'tcx>>,
found: Ty<'tcx>,

4
compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
View File

@ -13,7 +13,7 @@ use itertools::Itertools;
use rustc_ast as ast;
use rustc_data_structures::fx::FxIndexSet;
use rustc_errors::{
codes::*, pluralize, Applicability, Diagnostic, ErrorGuaranteed, MultiSpan, StashKey,
codes::*, pluralize, Applicability, DiagnosticBuilder, ErrorGuaranteed, MultiSpan, StashKey,
};
use rustc_hir as hir;
use rustc_hir::def::{CtorOf, DefKind, Res};
@ -1936,7 +1936,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn label_fn_like(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
callable_def_id: Option<DefId>,
callee_ty: Option<Ty<'tcx>>,
call_expr: &'tcx hir::Expr<'tcx>,

74
compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs
View File

@ -12,7 +12,7 @@ use core::cmp::min;
use core::iter;
use rustc_ast::util::parser::{ExprPrecedence, PREC_POSTFIX};
use rustc_data_structures::packed::Pu128;
use rustc_errors::{Applicability, Diagnostic, MultiSpan};
use rustc_errors::{Applicability, DiagnosticBuilder, MultiSpan};
use rustc_hir as hir;
use rustc_hir::def::Res;
use rustc_hir::def::{CtorKind, CtorOf, DefKind};
@ -48,7 +48,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
.copied()
}
pub(in super::super) fn suggest_semicolon_at_end(&self, span: Span, err: &mut Diagnostic) {
pub(in super::super) fn suggest_semicolon_at_end(
&self,
span: Span,
err: &mut DiagnosticBuilder<'_>,
) {
// This suggestion is incorrect for
// fn foo() -> bool { match () { () => true } || match () { () => true } }
err.span_suggestion_short(
@ -66,7 +70,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// - Possible missing return type if the return type is the default, and not `fn main()`.
pub fn suggest_mismatched_types_on_tail(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &'tcx hir::Expr<'tcx>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
@ -97,7 +101,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// ```
pub(crate) fn suggest_fn_call(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
found: Ty<'tcx>,
can_satisfy: impl FnOnce(Ty<'tcx>) -> bool,
@ -179,7 +183,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub fn suggest_two_fn_call(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
lhs_expr: &'tcx hir::Expr<'tcx>,
lhs_ty: Ty<'tcx>,
rhs_expr: &'tcx hir::Expr<'tcx>,
@ -253,7 +257,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub fn suggest_remove_last_method_call(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
expected: Ty<'tcx>,
) -> bool {
@ -282,7 +286,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub fn suggest_deref_ref_or_into(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
@ -540,7 +544,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// in the heap by calling `Box::new()`.
pub(in super::super) fn suggest_boxing_when_appropriate(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
span: Span,
hir_id: HirId,
expected: Ty<'tcx>,
@ -583,7 +587,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// suggest a non-capturing closure
pub(in super::super) fn suggest_no_capture_closure(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
) -> bool {
@ -620,7 +624,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
#[instrument(skip(self, err))]
pub(in super::super) fn suggest_calling_boxed_future_when_appropriate(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
@ -732,7 +736,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// block is needed to be added too (`|| { expr; }`). This is denoted by `needs_block`.
pub fn suggest_missing_semicolon(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expression: &'tcx hir::Expr<'tcx>,
expected: Ty<'tcx>,
needs_block: bool,
@ -791,7 +795,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
#[instrument(level = "trace", skip(self, err))]
pub(in super::super) fn suggest_missing_return_type(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
fn_decl: &hir::FnDecl<'tcx>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
@ -909,7 +913,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// ```
fn try_suggest_return_impl_trait(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
fn_id: hir::HirId,
@ -1014,7 +1018,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(in super::super) fn suggest_missing_break_or_return_expr(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &'tcx hir::Expr<'tcx>,
fn_decl: &hir::FnDecl<'tcx>,
expected: Ty<'tcx>,
@ -1118,7 +1122,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(in super::super) fn suggest_missing_parentheses(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
) -> bool {
let sp = self.tcx.sess.source_map().start_point(expr.span).with_parent(None);
@ -1136,7 +1140,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// if it was possibly mistaken array syntax.
pub(crate) fn suggest_block_to_brackets_peeling_refs(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
mut expr: &hir::Expr<'_>,
mut expr_ty: Ty<'tcx>,
mut expected_ty: Ty<'tcx>,
@ -1163,7 +1167,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn suggest_clone_for_ref(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expr_ty: Ty<'tcx>,
expected_ty: Ty<'tcx>,
@ -1198,7 +1202,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn suggest_copied_cloned_or_as_ref(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expr_ty: Ty<'tcx>,
expected_ty: Ty<'tcx>,
@ -1248,7 +1252,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn suggest_into(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expr_ty: Ty<'tcx>,
expected_ty: Ty<'tcx>,
@ -1311,7 +1315,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// When expecting a `bool` and finding an `Option`, suggests using `let Some(..)` or `.is_some()`
pub(crate) fn suggest_option_to_bool(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expr_ty: Ty<'tcx>,
expected_ty: Ty<'tcx>,
@ -1368,7 +1372,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// in case the block was mistaken array syntax, e.g. `{ 1 }` -> `[ 1 ]`.
pub(crate) fn suggest_block_to_brackets(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
blk: &hir::Block<'_>,
blk_ty: Ty<'tcx>,
expected_ty: Ty<'tcx>,
@ -1408,7 +1412,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
#[instrument(skip(self, err))]
pub(crate) fn suggest_floating_point_literal(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expected_ty: Ty<'tcx>,
) -> bool {
@ -1479,7 +1483,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
#[instrument(skip(self, err))]
pub(crate) fn suggest_null_ptr_for_literal_zero_given_to_ptr_arg(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expected_ty: Ty<'tcx>,
) -> bool {
@ -1517,7 +1521,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn suggest_associated_const(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
expected_ty: Ty<'tcx>,
) -> bool {
@ -1611,7 +1615,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// which is a side-effect of autoref.
pub(crate) fn note_type_is_not_clone(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
expected_ty: Ty<'tcx>,
found_ty: Ty<'tcx>,
expr: &hir::Expr<'_>,
@ -1811,7 +1815,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
&self,
blk: &'tcx hir::Block<'tcx>,
expected_ty: Ty<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) -> bool {
if let Some((span_semi, boxed)) = self.err_ctxt().could_remove_semicolon(blk, expected_ty) {
if let StatementAsExpression::NeedsBoxing = boxed {
@ -1856,7 +1860,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn suggest_missing_unwrap_expect(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
@ -1939,7 +1943,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn suggest_coercing_result_via_try_operator(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
@ -1986,7 +1990,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// sole field is of the found type, suggest such variants. (Issue #42764)
pub(crate) fn suggest_compatible_variants(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expected: Ty<'tcx>,
expr_ty: Ty<'tcx>,
@ -2175,7 +2179,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn suggest_non_zero_new_unwrap(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
expected: Ty<'tcx>,
expr_ty: Ty<'tcx>,
@ -2719,7 +2723,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn suggest_cast(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
checked_ty: Ty<'tcx>,
expected_ty: Ty<'tcx>,
@ -2847,7 +2851,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
let in_const_context = self.tcx.hir().is_inside_const_context(expr.hir_id);
let suggest_fallible_into_or_lhs_from =
|err: &mut Diagnostic, exp_to_found_is_fallible: bool| {
|err: &mut DiagnosticBuilder<'_>, exp_to_found_is_fallible: bool| {
// If we know the expression the expected type is derived from, we might be able
// to suggest a widening conversion rather than a narrowing one (which may
// panic). For example, given x: u8 and y: u32, if we know the span of "x",
@ -2887,7 +2891,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
};
let suggest_to_change_suffix_or_into =
|err: &mut Diagnostic,
|err: &mut DiagnosticBuilder<'_>,
found_to_exp_is_fallible: bool,
exp_to_found_is_fallible: bool| {
let exp_is_lhs = expected_ty_expr.is_some_and(|e| self.tcx.hir().is_lhs(e.hir_id));
@ -3085,7 +3089,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// Identify when the user has written `foo..bar()` instead of `foo.bar()`.
pub(crate) fn suggest_method_call_on_range_literal(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'tcx>,
checked_ty: Ty<'tcx>,
expected_ty: Ty<'tcx>,
@ -3163,7 +3167,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// block without a tail expression.
pub(crate) fn suggest_return_binding_for_missing_tail_expr(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
checked_ty: Ty<'tcx>,
expected_ty: Ty<'tcx>,

4
compiler/rustc_hir_typeck/src/method/mod.rs
View File

@ -11,7 +11,7 @@ pub use self::suggest::SelfSource;
pub use self::MethodError::*;
use crate::FnCtxt;
use rustc_errors::{Applicability, Diagnostic, SubdiagnosticMessage};
use rustc_errors::{Applicability, DiagnosticBuilder, SubdiagnosticMessage};
use rustc_hir as hir;
use rustc_hir::def::{CtorOf, DefKind, Namespace};
use rustc_hir::def_id::DefId;
@ -126,7 +126,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
#[instrument(level = "debug", skip(self, err, call_expr))]
pub(crate) fn suggest_method_call(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
msg: impl Into<SubdiagnosticMessage> + std::fmt::Debug,
method_name: Ident,
self_ty: Ty<'tcx>,

43
compiler/rustc_hir_typeck/src/method/suggest.rs
View File

@ -12,8 +12,8 @@ use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
use rustc_data_structures::sorted_map::SortedMap;
use rustc_data_structures::unord::UnordSet;
use rustc_errors::{
codes::*, pluralize, struct_span_code_err, Applicability, Diagnostic, DiagnosticBuilder,
MultiSpan, StashKey,
codes::*, pluralize, struct_span_code_err, Applicability, DiagnosticBuilder, MultiSpan,
StashKey,
};
use rustc_hir as hir;
use rustc_hir::def::DefKind;
@ -1127,7 +1127,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
}
}
let label_span_not_found = |err: &mut Diagnostic| {
let label_span_not_found = |err: &mut DiagnosticBuilder<'_>| {
if unsatisfied_predicates.is_empty() {
err.span_label(span, format!("{item_kind} not found in `{ty_str}`"));
let is_string_or_ref_str = match rcvr_ty.kind() {
@ -1438,7 +1438,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
self_source: SelfSource<'tcx>,
args: Option<&'tcx [hir::Expr<'tcx>]>,
span: Span,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
sources: &mut Vec<CandidateSource>,
sugg_span: Option<Span>,
) {
@ -1584,7 +1584,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// Look at all the associated functions without receivers in the type's inherent impls
/// to look for builders that return `Self`, `Option<Self>` or `Result<Self, _>`.
fn find_builder_fn(&self, err: &mut Diagnostic, rcvr_ty: Ty<'tcx>) {
fn find_builder_fn(&self, err: &mut DiagnosticBuilder<'_>, rcvr_ty: Ty<'tcx>) {
let ty::Adt(adt_def, _) = rcvr_ty.kind() else {
return;
};
@ -1665,7 +1665,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// doesn't take a `self` receiver.
fn suggest_associated_call_syntax(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
static_candidates: &Vec<CandidateSource>,
rcvr_ty: Ty<'tcx>,
source: SelfSource<'tcx>,
@ -1809,7 +1809,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
rcvr_ty: Ty<'tcx>,
expr: &hir::Expr<'_>,
item_name: Ident,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) -> bool {
let tcx = self.tcx;
let field_receiver = self.autoderef(span, rcvr_ty).find_map(|(ty, _)| match ty.kind() {
@ -2132,7 +2132,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// Suggest calling a method on a field i.e. `a.field.bar()` instead of `a.bar()`
fn suggest_calling_method_on_field(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: SelfSource<'tcx>,
span: Span,
actual: Ty<'tcx>,
@ -2212,7 +2212,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn suggest_unwrapping_inner_self(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: SelfSource<'tcx>,
actual: Ty<'tcx>,
item_name: Ident,
@ -2401,7 +2401,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn note_unmet_impls_on_type(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
errors: Vec<FulfillmentError<'tcx>>,
suggest_derive: bool,
) {
@ -2484,7 +2484,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn note_predicate_source_and_get_derives(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
unsatisfied_predicates: &[(
ty::Predicate<'tcx>,
Option<ty::Predicate<'tcx>>,
@ -2566,7 +2566,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pub(crate) fn suggest_derive(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
unsatisfied_predicates: &[(
ty::Predicate<'tcx>,
Option<ty::Predicate<'tcx>>,
@ -2602,7 +2602,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn note_derefed_ty_has_method(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
self_source: SelfSource<'tcx>,
rcvr_ty: Ty<'tcx>,
item_name: Ident,
@ -2682,7 +2682,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn suggest_await_before_method(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
item_name: Ident,
ty: Ty<'tcx>,
call: &hir::Expr<'_>,
@ -2705,7 +2705,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
}
}
fn suggest_use_candidates(&self, err: &mut Diagnostic, msg: String, candidates: Vec<DefId>) {
fn suggest_use_candidates(
&self,
err: &mut DiagnosticBuilder<'_>,
msg: String,
candidates: Vec<DefId>,
) {
let parent_map = self.tcx.visible_parent_map(());
// Separate out candidates that must be imported with a glob, because they are named `_`
@ -2752,7 +2757,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn suggest_valid_traits(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
valid_out_of_scope_traits: Vec<DefId>,
explain: bool,
) -> bool {
@ -2793,7 +2798,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn suggest_traits_to_import(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
span: Span,
rcvr_ty: Ty<'tcx>,
item_name: Ident,
@ -3332,7 +3337,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
/// FIXME: currently not working for suggesting `map_or_else`, see #102408
pub(crate) fn suggest_else_fn_with_closure(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
expr: &hir::Expr<'_>,
found: Ty<'tcx>,
expected: Ty<'tcx>,
@ -3458,7 +3463,7 @@ pub fn all_traits(tcx: TyCtxt<'_>) -> Vec<TraitInfo> {
fn print_disambiguation_help<'tcx>(
tcx: TyCtxt<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: SelfSource<'tcx>,
args: Option<&'tcx [hir::Expr<'tcx>]>,
trait_ref: ty::TraitRef<'tcx>,

4
compiler/rustc_hir_typeck/src/op.rs
View File

@ -5,7 +5,7 @@ use super::FnCtxt;
use crate::Expectation;
use rustc_ast as ast;
use rustc_data_structures::packed::Pu128;
use rustc_errors::{codes::*, struct_span_code_err, Applicability, Diagnostic, DiagnosticBuilder};
use rustc_errors::{codes::*, struct_span_code_err, Applicability, DiagnosticBuilder};
use rustc_hir as hir;
use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind};
use rustc_infer::traits::ObligationCauseCode;
@ -695,7 +695,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
rhs_expr: &'tcx hir::Expr<'tcx>,
lhs_ty: Ty<'tcx>,
rhs_ty: Ty<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
is_assign: IsAssign,
op: hir::BinOp,
) -> bool {

12
compiler/rustc_hir_typeck/src/pat.rs
View File

@ -3,8 +3,8 @@ use crate::{errors, FnCtxt, LoweredTy};
use rustc_ast as ast;
use rustc_data_structures::fx::FxHashMap;
use rustc_errors::{
codes::*, pluralize, struct_span_code_err, Applicability, Diagnostic, DiagnosticBuilder,
ErrorGuaranteed, MultiSpan,
codes::*, pluralize, struct_span_code_err, Applicability, DiagnosticBuilder, ErrorGuaranteed,
MultiSpan,
};
use rustc_hir as hir;
use rustc_hir::def::{CtorKind, DefKind, Res};
@ -529,7 +529,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
ty
}
fn endpoint_has_type(&self, err: &mut Diagnostic, span: Span, ty: Ty<'_>) {
fn endpoint_has_type(&self, err: &mut DiagnosticBuilder<'_>, span: Span, ty: Ty<'_>) {
if !ty.references_error() {
err.span_label(span, format!("this is of type `{ty}`"));
}
@ -683,7 +683,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn suggest_adding_missing_ref_or_removing_ref(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
span: Span,
expected: Ty<'tcx>,
actual: Ty<'tcx>,
@ -715,7 +715,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
}
// Precondition: pat is a Ref(_) pattern
fn borrow_pat_suggestion(&self, err: &mut Diagnostic, pat: &Pat<'_>) {
fn borrow_pat_suggestion(&self, err: &mut DiagnosticBuilder<'_>, pat: &Pat<'_>) {
let tcx = self.tcx;
if let PatKind::Ref(inner, mutbl) = pat.kind
&& let PatKind::Binding(_, _, binding, ..) = inner.kind
@ -933,7 +933,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn maybe_suggest_range_literal(
&self,
e: &mut Diagnostic,
e: &mut DiagnosticBuilder<'_>,
opt_def_id: Option<hir::def_id::DefId>,
ident: Ident,
) -> bool {

59
compiler/rustc_infer/src/errors/mod.rs
View File

@ -1,7 +1,8 @@
use hir::GenericParamKind;
use rustc_errors::{
codes::*, AddToDiagnostic, Applicability, Diagnostic, DiagnosticMessage,
DiagnosticStyledString, IntoDiagnosticArg, MultiSpan, SubdiagnosticMessageOp,
codes::*, AddToDiagnostic, Applicability, DiagnosticBuilder, DiagnosticMessage,
DiagnosticStyledString, EmissionGuarantee, IntoDiagnosticArg, MultiSpan,
SubdiagnosticMessageOp,
};
use rustc_hir as hir;
use rustc_hir::FnRetTy;
@ -225,7 +226,11 @@ pub enum RegionOriginNote<'a> {
}
impl AddToDiagnostic for RegionOriginNote<'_> {
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: F,
) {
let mut label_or_note = |span, msg: DiagnosticMessage| {
let sub_count = diag.children.iter().filter(|d| d.span.is_dummy()).count();
let expanded_sub_count = diag.children.iter().filter(|d| !d.span.is_dummy()).count();
@ -286,7 +291,11 @@ pub enum LifetimeMismatchLabels {
}
impl AddToDiagnostic for LifetimeMismatchLabels {
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: F,
) {
match self {
LifetimeMismatchLabels::InRet { param_span, ret_span, span, label_var1 } => {
diag.span_label(param_span, fluent::infer_declared_different);
@ -330,7 +339,11 @@ pub struct AddLifetimeParamsSuggestion<'a> {
}
impl AddToDiagnostic for AddLifetimeParamsSuggestion<'_> {
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: F,
) {
let mut mk_suggestion = || {
let (
hir::Ty { kind: hir::TyKind::Ref(lifetime_sub, _), .. },
@ -428,7 +441,11 @@ pub struct IntroducesStaticBecauseUnmetLifetimeReq {
}
impl AddToDiagnostic for IntroducesStaticBecauseUnmetLifetimeReq {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(mut self, diag: &mut Diagnostic, _: F) {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
mut self,
diag: &mut DiagnosticBuilder<'_, G>,
_f: F,
) {
self.unmet_requirements
.push_span_label(self.binding_span, fluent::infer_msl_introduces_static);
diag.span_note(self.unmet_requirements, fluent::infer_msl_unmet_req);
@ -743,7 +760,11 @@ pub struct ConsiderBorrowingParamHelp {
}
impl AddToDiagnostic for ConsiderBorrowingParamHelp {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, f: F) {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
f: F,
) {
let mut type_param_span: MultiSpan = self.spans.clone().into();
for &span in &self.spans {
// Seems like we can't call f() here as Into<DiagnosticMessage> is required
@ -784,7 +805,11 @@ pub struct DynTraitConstraintSuggestion {
}
impl AddToDiagnostic for DynTraitConstraintSuggestion {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, f: F) {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
f: F,
) {
let mut multi_span: MultiSpan = vec![self.span].into();
multi_span.push_span_label(self.span, fluent::infer_dtcs_has_lifetime_req_label);
multi_span.push_span_label(self.ident.span, fluent::infer_dtcs_introduces_requirement);
@ -827,7 +852,11 @@ pub struct ReqIntroducedLocations {
}
impl AddToDiagnostic for ReqIntroducedLocations {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(mut self, diag: &mut Diagnostic, f: F) {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
mut self,
diag: &mut DiagnosticBuilder<'_, G>,
f: F,
) {
for sp in self.spans {
self.span.push_span_label(sp, fluent::infer_ril_introduced_here);
}
@ -846,7 +875,11 @@ pub struct MoreTargeted {
}
impl AddToDiagnostic for MoreTargeted {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, _f: F) {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
_f: F,
) {
diag.code(E0772);
diag.primary_message(fluent::infer_more_targeted);
diag.arg("ident", self.ident);
@ -1265,7 +1298,11 @@ pub struct SuggestTuplePatternMany {
}
impl AddToDiagnostic for SuggestTuplePatternMany {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, f: F) {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
f: F,
) {
diag.arg("path", self.path);
let message = f(diag, crate::fluent_generated::infer_stp_wrap_many.into());
diag.multipart_suggestions(

11
compiler/rustc_infer/src/errors/note_and_explain.rs
View File

@ -1,6 +1,9 @@
use crate::fluent_generated as fluent;
use crate::infer::error_reporting::nice_region_error::find_anon_type;
use rustc_errors::{AddToDiagnostic, Diagnostic, IntoDiagnosticArg, SubdiagnosticMessageOp};
use rustc_errors::{
AddToDiagnostic, DiagnosticBuilder, EmissionGuarantee, IntoDiagnosticArg,
SubdiagnosticMessageOp,
};
use rustc_middle::ty::{self, TyCtxt};
use rustc_span::{symbol::kw, Span};
@ -160,7 +163,11 @@ impl RegionExplanation<'_> {
}
impl AddToDiagnostic for RegionExplanation<'_> {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, f: F) {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
f: F,
) {
diag.arg("pref_kind", self.prefix);
diag.arg("suff_kind", self.suffix);
diag.arg("desc_kind", self.desc.kind);

32
compiler/rustc_infer/src/infer/error_reporting/mod.rs
View File

@ -60,8 +60,8 @@ use crate::traits::{
use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
use rustc_errors::{
codes::*, pluralize, struct_span_code_err, Applicability, DiagCtxt, Diagnostic,
DiagnosticBuilder, DiagnosticStyledString, ErrorGuaranteed, IntoDiagnosticArg,
codes::*, pluralize, struct_span_code_err, Applicability, DiagCtxt, DiagnosticBuilder,
DiagnosticStyledString, ErrorGuaranteed, IntoDiagnosticArg,
};
use rustc_hir as hir;
use rustc_hir::def::DefKind;
@ -155,7 +155,7 @@ impl<'tcx> Deref for TypeErrCtxt<'_, 'tcx> {
pub(super) fn note_and_explain_region<'tcx>(
tcx: TyCtxt<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
prefix: &str,
region: ty::Region<'tcx>,
suffix: &str,
@ -180,7 +180,7 @@ pub(super) fn note_and_explain_region<'tcx>(
fn explain_free_region<'tcx>(
tcx: TyCtxt<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
prefix: &str,
region: ty::Region<'tcx>,
suffix: &str,
@ -262,7 +262,7 @@ fn msg_span_from_named_region<'tcx>(
}
fn emit_msg_span(
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
prefix: &str,
description: String,
span: Option<Span>,
@ -278,7 +278,7 @@ fn emit_msg_span(
}
fn label_msg_span(
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
prefix: &str,
description: String,
span: Option<Span>,
@ -577,7 +577,11 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
/// Adds a note if the types come from similarly named crates
fn check_and_note_conflicting_crates(&self, err: &mut Diagnostic, terr: TypeError<'tcx>) {
fn check_and_note_conflicting_crates(
&self,
err: &mut DiagnosticBuilder<'_>,
terr: TypeError<'tcx>,
) {
use hir::def_id::CrateNum;
use rustc_hir::definitions::DisambiguatedDefPathData;
use ty::print::Printer;
@ -651,7 +655,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
}
let report_path_match = |err: &mut Diagnostic, did1: DefId, did2: DefId| {
let report_path_match = |err: &mut DiagnosticBuilder<'_>, did1: DefId, did2: DefId| {
// Only report definitions from different crates. If both definitions
// are from a local module we could have false positives, e.g.
// let _ = [{struct Foo; Foo}, {struct Foo; Foo}];
@ -701,7 +705,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn note_error_origin(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
cause: &ObligationCause<'tcx>,
exp_found: Option<ty::error::ExpectedFound<Ty<'tcx>>>,
terr: TypeError<'tcx>,
@ -1535,7 +1539,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
)]
pub fn note_type_err(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
cause: &ObligationCause<'tcx>,
secondary_span: Option<(Span, Cow<'static, str>)>,
mut values: Option<ValuePairs<'tcx>>,
@ -1582,14 +1586,14 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
types_visitor
}
fn report(&self, err: &mut Diagnostic) {
fn report(&self, err: &mut DiagnosticBuilder<'_>) {
self.add_labels_for_types(err, "expected", &self.expected);
self.add_labels_for_types(err, "found", &self.found);
}
fn add_labels_for_types(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
target: &str,
types: &FxIndexMap<TyCategory, FxIndexSet<Span>>,
) {
@ -1803,7 +1807,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
|prim: Ty<'tcx>,
shadow: Ty<'tcx>,
defid: DefId,
diagnostic: &mut Diagnostic| {
diagnostic: &mut DiagnosticBuilder<'_>| {
let name = shadow.sort_string(self.tcx);
diagnostic.note(format!(
"{prim} and {name} have similar names, but are actually distinct types"
@ -1823,7 +1827,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
let diagnose_adts =
|expected_adt: ty::AdtDef<'tcx>,
found_adt: ty::AdtDef<'tcx>,
diagnostic: &mut Diagnostic| {
diagnostic: &mut DiagnosticBuilder<'_>| {
let found_name = values.found.sort_string(self.tcx);
let expected_name = values.expected.sort_string(self.tcx);

4
compiler/rustc_infer/src/infer/error_reporting/nice_region_error/different_lifetimes.rs
View File

@ -12,7 +12,7 @@ use crate::infer::SubregionOrigin;
use crate::infer::TyCtxt;
use rustc_errors::AddToDiagnostic;
use rustc_errors::{Diagnostic, ErrorGuaranteed};
use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed};
use rustc_hir::Ty;
use rustc_middle::ty::Region;
@ -142,7 +142,7 @@ pub fn suggest_adding_lifetime_params<'tcx>(
sub: Region<'tcx>,
ty_sup: &'tcx Ty<'_>,
ty_sub: &'tcx Ty<'_>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) {
let suggestion = AddLifetimeParamsSuggestion { tcx, sub, ty_sup, ty_sub, add_note: false };
suggestion.add_to_diagnostic(err);

8
compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs
View File

@ -9,7 +9,7 @@ use crate::infer::lexical_region_resolve::RegionResolutionError;
use crate::infer::{SubregionOrigin, TypeTrace};
use crate::traits::{ObligationCauseCode, UnifyReceiverContext};
use rustc_data_structures::fx::FxIndexSet;
use rustc_errors::{AddToDiagnostic, Applicability, Diagnostic, ErrorGuaranteed, MultiSpan};
use rustc_errors::{AddToDiagnostic, Applicability, DiagnosticBuilder, ErrorGuaranteed, MultiSpan};
use rustc_hir::def_id::DefId;
use rustc_hir::intravisit::{walk_ty, Visitor};
use rustc_hir::{
@ -261,7 +261,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> {
pub fn suggest_new_region_bound(
tcx: TyCtxt<'_>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
fn_returns: Vec<&rustc_hir::Ty<'_>>,
lifetime_name: String,
arg: Option<String>,
@ -488,7 +488,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> {
/// `'static` obligation. Suggest relaxing that implicit bound.
fn find_impl_on_dyn_trait(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
ty: Ty<'_>,
ctxt: &UnifyReceiverContext<'tcx>,
) -> bool {
@ -521,7 +521,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> {
fn suggest_constrain_dyn_trait_in_impl(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
found_dids: &FxIndexSet<DefId>,
ident: Ident,
self_ty: &hir::Ty<'_>,

10
compiler/rustc_infer/src/infer/error_reporting/note.rs
View File

@ -5,7 +5,7 @@ use crate::errors::{
use crate::fluent_generated as fluent;
use crate::infer::error_reporting::{note_and_explain_region, TypeErrCtxt};
use crate::infer::{self, SubregionOrigin};
use rustc_errors::{AddToDiagnostic, Diagnostic, DiagnosticBuilder};
use rustc_errors::{AddToDiagnostic, DiagnosticBuilder};
use rustc_hir::def_id::{DefId, LocalDefId};
use rustc_middle::traits::ObligationCauseCode;
use rustc_middle::ty::error::TypeError;
@ -15,7 +15,11 @@ use rustc_span::symbol::kw;
use super::ObligationCauseAsDiagArg;
impl<'tcx> TypeErrCtxt<'_, 'tcx> {
pub(super) fn note_region_origin(&self, err: &mut Diagnostic, origin: &SubregionOrigin<'tcx>) {
pub(super) fn note_region_origin(
&self,
err: &mut DiagnosticBuilder<'_>,
origin: &SubregionOrigin<'tcx>,
) {
match *origin {
infer::Subtype(ref trace) => RegionOriginNote::WithRequirement {
span: trace.cause.span,
@ -290,7 +294,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
&self,
trait_item_def_id: DefId,
impl_item_def_id: LocalDefId,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) {
// FIXME(compiler-errors): Right now this is only being used for region
// predicate mismatches. Ideally, we'd use it for *all* predicate mismatches,

18
compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs
View File

@ -1,6 +1,6 @@
use super::TypeErrCtxt;
use rustc_errors::Applicability::{MachineApplicable, MaybeIncorrect};
use rustc_errors::{pluralize, Diagnostic, MultiSpan};
use rustc_errors::{pluralize, DiagnosticBuilder, MultiSpan};
use rustc_hir as hir;
use rustc_hir::def::DefKind;
use rustc_middle::traits::ObligationCauseCode;
@ -15,7 +15,7 @@ use rustc_span::{def_id::DefId, sym, BytePos, Span, Symbol};
impl<'tcx> TypeErrCtxt<'_, 'tcx> {
pub fn note_and_explain_type_err(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
err: TypeError<'tcx>,
cause: &ObligationCause<'tcx>,
sp: Span,
@ -522,7 +522,7 @@ impl<T> Trait<T> for X {
fn suggest_constraint(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
msg: impl Fn() -> String,
body_owner_def_id: DefId,
proj_ty: &ty::AliasTy<'tcx>,
@ -595,7 +595,7 @@ impl<T> Trait<T> for X {
/// fn that returns the type.
fn expected_projection(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
proj_ty: &ty::AliasTy<'tcx>,
values: ExpectedFound<Ty<'tcx>>,
body_owner_def_id: DefId,
@ -705,7 +705,7 @@ fn foo(&self) -> Self::T { String::new() }
/// a return type. This can occur when dealing with `TryStream` (#71035).
fn suggest_constraining_opaque_associated_type(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
msg: impl Fn() -> String,
proj_ty: &ty::AliasTy<'tcx>,
ty: Ty<'tcx>,
@ -740,7 +740,7 @@ fn foo(&self) -> Self::T { String::new() }
fn point_at_methods_that_satisfy_associated_type(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
assoc_container_id: DefId,
current_method_ident: Option<Symbol>,
proj_ty_item_def_id: DefId,
@ -798,7 +798,7 @@ fn foo(&self) -> Self::T { String::new() }
fn point_at_associated_type(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
body_owner_def_id: DefId,
found: Ty<'tcx>,
) -> bool {
@ -879,7 +879,7 @@ fn foo(&self) -> Self::T { String::new() }
/// type is defined on a supertrait of the one present in the bounds.
fn constrain_generic_bound_associated_type_structured_suggestion(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
trait_ref: &ty::TraitRef<'tcx>,
bounds: hir::GenericBounds<'_>,
assoc: ty::AssocItem,
@ -916,7 +916,7 @@ fn foo(&self) -> Self::T { String::new() }
/// associated type to a given type `ty`.
fn constrain_associated_type_structured_suggestion(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
span: Span,
assoc: ty::AssocItem,
assoc_args: &[ty::GenericArg<'tcx>],

16
compiler/rustc_infer/src/infer/error_reporting/suggest.rs
View File

@ -1,7 +1,7 @@
use hir::def::CtorKind;
use hir::intravisit::{walk_expr, walk_stmt, Visitor};
use rustc_data_structures::fx::FxIndexSet;
use rustc_errors::{Applicability, Diagnostic};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_hir as hir;
use rustc_middle::traits::{
IfExpressionCause, MatchExpressionArmCause, ObligationCause, ObligationCauseCode,
@ -76,7 +76,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
pub(super) fn suggest_boxing_for_return_impl_trait(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
return_sp: Span,
arm_spans: impl Iterator<Item = Span>,
) {
@ -100,7 +100,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
&self,
cause: &ObligationCause<'tcx>,
exp_found: &ty::error::ExpectedFound<Ty<'tcx>>,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
) {
// Heavily inspired by `FnCtxt::suggest_compatible_variants`, with
// some modifications due to that being in typeck and this being in infer.
@ -177,7 +177,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
cause: &ObligationCause<'tcx>,
exp_span: Span,
exp_found: &ty::error::ExpectedFound<Ty<'tcx>>,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
) {
debug!(
"suggest_await_on_expect_found: exp_span={:?}, expected_ty={:?}, found_ty={:?}",
@ -258,7 +258,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
&self,
cause: &ObligationCause<'tcx>,
exp_found: &ty::error::ExpectedFound<Ty<'tcx>>,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
) {
debug!(
"suggest_accessing_field_where_appropriate(cause={:?}, exp_found={:?})",
@ -298,7 +298,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
cause: &ObligationCause<'tcx>,
span: Span,
exp_found: &ty::error::ExpectedFound<Ty<'tcx>>,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
) {
debug!("suggest_function_pointers(cause={:?}, exp_found={:?})", cause, exp_found);
let ty::error::ExpectedFound { expected, found } = exp_found;
@ -532,7 +532,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
span: Span,
hir: hir::Node<'_>,
exp_found: &ty::error::ExpectedFound<ty::PolyTraitRef<'tcx>>,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
) {
// 0. Extract fn_decl from hir
let hir::Node::Expr(hir::Expr {
@ -818,7 +818,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
&self,
blk: &'tcx hir::Block<'tcx>,
expected_ty: Ty<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) -> bool {
let diag = self.consider_returning_binding_diag(blk, expected_ty);
match diag {

3
compiler/rustc_lint/src/context/diagnostics.rs
View File

@ -1,3 +1,6 @@
#![allow(rustc::diagnostic_outside_of_impl)]
#![allow(rustc::untranslatable_diagnostic)]
use rustc_ast::util::unicode::TEXT_FLOW_CONTROL_CHARS;
use rustc_errors::{add_elided_lifetime_in_path_suggestion, DiagnosticBuilder};
use rustc_errors::{Applicability, SuggestionStyle};

10
compiler/rustc_lint/src/errors.rs
View File

@ -1,5 +1,7 @@
use crate::fluent_generated as fluent;
use rustc_errors::{codes::*, AddToDiagnostic, Diagnostic, SubdiagnosticMessageOp};
use rustc_errors::{
codes::*, AddToDiagnostic, DiagnosticBuilder, EmissionGuarantee, SubdiagnosticMessageOp,
};
use rustc_macros::{Diagnostic, Subdiagnostic};
use rustc_session::lint::Level;
use rustc_span::{Span, Symbol};
@ -24,7 +26,11 @@ pub enum OverruledAttributeSub {
}
impl AddToDiagnostic for OverruledAttributeSub {
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: F,
) {
match self {
OverruledAttributeSub::DefaultSource { id } => {
diag.note(fluent::lint_default_source);

3
compiler/rustc_lint/src/levels.rs
View File

@ -1062,6 +1062,9 @@ impl<'s, P: LintLevelsProvider> LintLevelsBuilder<'s, P> {
if self.lint_added_lints {
let lint = builtin::UNKNOWN_LINTS;
let (level, src) = self.lint_level(builtin::UNKNOWN_LINTS);
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
lint_level(
self.sess,
lint,

66
compiler/rustc_lint/src/lints.rs
View File

@ -5,8 +5,8 @@ use std::num::NonZero;
use crate::errors::RequestedLevel;
use crate::fluent_generated as fluent;
use rustc_errors::{
codes::*, AddToDiagnostic, Applicability, DecorateLint, Diagnostic, DiagnosticBuilder,
DiagnosticMessage, DiagnosticStyledString, SubdiagnosticMessageOp, SuggestionStyle,
codes::*, AddToDiagnostic, Applicability, DecorateLint, DiagnosticBuilder, DiagnosticMessage,
DiagnosticStyledString, EmissionGuarantee, SubdiagnosticMessageOp, SuggestionStyle,
};
use rustc_hir::def_id::DefId;
use rustc_macros::{LintDiagnostic, Subdiagnostic};
@ -267,17 +267,21 @@ pub struct SuggestChangingAssocTypes<'a, 'b> {
pub ty: &'a rustc_hir::Ty<'b>,
}
impl AddToDiagnostic for SuggestChangingAssocTypes<'_, '_> {
fn add_to_diagnostic_with<F: SubdiagnosticMessageOp>(self, diag: &mut Diagnostic, _: F) {
impl<'a, 'b> AddToDiagnostic for SuggestChangingAssocTypes<'a, 'b> {
fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagnosticMessageOp<G>>(
self,
diag: &mut DiagnosticBuilder<'_, G>,
_f: F,
) {
// Access to associates types should use `<T as Bound>::Assoc`, which does not need a
// bound. Let's see if this type does that.
// We use a HIR visitor to walk the type.
use rustc_hir::intravisit::{self, Visitor};
struct WalkAssocTypes<'a> {
err: &'a mut Diagnostic,
struct WalkAssocTypes<'a, 'b, G: EmissionGuarantee> {
err: &'a mut DiagnosticBuilder<'b, G>,
}
impl Visitor<'_> for WalkAssocTypes<'_> {
impl<'a, 'b, G: EmissionGuarantee> Visitor<'_> for WalkAssocTypes<'a, 'b, G> {
fn visit_qpath(
&mut self,
qpath: &rustc_hir::QPath<'_>,
@ -320,7 +324,11 @@ pub struct BuiltinTypeAliasGenericBoundsSuggestion {
}
impl AddToDiagnostic for BuiltinTypeAliasGenericBoundsSuggestion {
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: F,
) {
diag.multipart_suggestion(
fluent::lint_suggestion,
self.suggestions,
@ -437,7 +445,11 @@ pub struct BuiltinUnpermittedTypeInitSub {
}
impl AddToDiagnostic for BuiltinUnpermittedTypeInitSub {
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: F,
) {
let mut err = self.err;
loop {
if let Some(span) = err.span {
@ -488,7 +500,11 @@ pub struct BuiltinClashingExternSub<'a> {
}
impl AddToDiagnostic for BuiltinClashingExternSub<'_> {
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: F,
) {
let mut expected_str = DiagnosticStyledString::new();
expected_str.push(self.expected.fn_sig(self.tcx).to_string(), false);
let mut found_str = DiagnosticStyledString::new();
@ -766,7 +782,11 @@ pub struct HiddenUnicodeCodepointsDiagLabels {
}
impl AddToDiagnostic for HiddenUnicodeCodepointsDiagLabels {
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: F,
) {
for (c, span) in self.spans {
diag.span_label(span, format!("{c:?}"));
}
@ -780,7 +800,11 @@ pub enum HiddenUnicodeCodepointsDiagSub {
// Used because of multiple multipart_suggestion and note
impl AddToDiagnostic for HiddenUnicodeCodepointsDiagSub {
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: F,
) {
match self {
HiddenUnicodeCodepointsDiagSub::Escape { spans } => {
diag.multipart_suggestion_with_style(
@ -928,7 +952,11 @@ pub struct NonBindingLetSub {
}
impl AddToDiagnostic for NonBindingLetSub {
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: F,
) {
let can_suggest_binding = self.drop_fn_start_end.is_some() || !self.is_assign_desugar;
if can_suggest_binding {
@ -1208,7 +1236,11 @@ pub enum NonSnakeCaseDiagSub {
}
impl AddToDiagnostic for NonSnakeCaseDiagSub {
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: F,
) {
match self {
NonSnakeCaseDiagSub::Label { span } => {
diag.span_label(span, fluent::lint_label);
@ -1401,7 +1433,11 @@ pub enum OverflowingBinHexSign {
}
impl AddToDiagnostic for OverflowingBinHexSign {
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: F,
) {
match self {
OverflowingBinHexSign::Positive => {
diag.note(fluent::lint_positive_note);

10
compiler/rustc_macros/src/diagnostics/subdiagnostic.rs
View File

@ -87,9 +87,13 @@ impl SubdiagnosticDeriveBuilder {
let f = &self.f;
let ret = structure.gen_impl(quote! {
gen impl rustc_errors::AddToDiagnostic for @Self {
fn add_to_diagnostic_with<__F>(self, #diag: &mut rustc_errors::Diagnostic, #f: __F)
where
__F: rustc_errors::SubdiagnosticMessageOp,
fn add_to_diagnostic_with<__G, __F>(
self,
#diag: &mut rustc_errors::DiagnosticBuilder<'_, __G>,
#f: __F
) where
__G: rustc_errors::EmissionGuarantee,
__F: rustc_errors::SubdiagnosticMessageOp<__G>,
{
#implementation
}

4
compiler/rustc_metadata/src/errors.rs
View File

@ -505,6 +505,8 @@ impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for MultipleCandidates {
diag.code(E0464);
diag.span(self.span);
for (i, candidate) in self.candidates.iter().enumerate() {
// FIXME: make this translatable
#[allow(rustc::untranslatable_diagnostic)]
diag.note(format!("candidate #{}: {}", i + 1, candidate.display()));
}
diag
@ -601,6 +603,8 @@ impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for InvalidMetadataFiles {
diag.code(E0786);
diag.span(self.span);
for crate_rejection in self.crate_rejections {
// FIXME: make this translatable
#[allow(rustc::untranslatable_diagnostic)]
diag.note(crate_rejection);
}
diag

8
compiler/rustc_middle/src/lint.rs
View File

@ -2,7 +2,7 @@ use std::cmp;
use rustc_data_structures::fx::FxIndexMap;
use rustc_data_structures::sorted_map::SortedMap;
use rustc_errors::{Diagnostic, DiagnosticBuilder, DiagnosticMessage, MultiSpan};
use rustc_errors::{DiagnosticBuilder, DiagnosticMessage, MultiSpan};
use rustc_hir::{HirId, ItemLocalId};
use rustc_session::lint::{
builtin::{self, FORBIDDEN_LINT_GROUPS},
@ -204,7 +204,7 @@ pub fn explain_lint_level_source(
lint: &'static Lint,
level: Level,
src: LintLevelSource,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, ()>,
) {
let name = lint.name_lower();
if let Level::Allow = level {
@ -359,7 +359,7 @@ pub fn lint_level(
// Lint diagnostics that are covered by the expect level will not be emitted outside
// the compiler. It is therefore not necessary to add any information for the user.
// This will therefore directly call the decorate function which will in turn emit
// the `Diagnostic`.
// the diagnostic.
if let Level::Expect(_) = level {
decorate(&mut err);
err.emit();
@ -401,7 +401,7 @@ pub fn lint_level(
// Finally, run `decorate`.
decorate(&mut err);
explain_lint_level_source(lint, level, src, &mut *err);
explain_lint_level_source(lint, level, src, &mut err);
err.emit()
}
lint_level_impl(sess, lint, level, src, span, msg, Box::new(decorate))

4
compiler/rustc_middle/src/middle/stability.rs
View File

@ -9,7 +9,7 @@ use rustc_attr::{
self as attr, ConstStability, DefaultBodyStability, DeprecatedSince, Deprecation, Stability,
};
use rustc_data_structures::unord::UnordMap;
use rustc_errors::{Applicability, Diagnostic};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_feature::GateIssue;
use rustc_hir::def::DefKind;
use rustc_hir::def_id::{DefId, LocalDefId, LocalDefIdMap};
@ -125,7 +125,7 @@ pub fn report_unstable(
}
pub fn deprecation_suggestion(
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_, ()>,
kind: &str,
suggestion: Option<Symbol>,
span: Span,

4
compiler/rustc_middle/src/traits/mod.rs
View File

@ -16,7 +16,7 @@ use crate::ty::GenericArgsRef;
use crate::ty::{self, AdtKind, Ty};
use rustc_data_structures::sync::Lrc;
use rustc_errors::{Applicability, Diagnostic};
use rustc_errors::{Applicability, DiagnosticBuilder, EmissionGuarantee};
use rustc_hir as hir;
use rustc_hir::def_id::DefId;
use rustc_span::def_id::{LocalDefId, CRATE_DEF_ID};
@ -908,7 +908,7 @@ pub enum ObjectSafetyViolationSolution {
}
impl ObjectSafetyViolationSolution {
pub fn add_to(self, err: &mut Diagnostic) {
pub fn add_to<G: EmissionGuarantee>(self, err: &mut DiagnosticBuilder<'_, G>) {
match self {
ObjectSafetyViolationSolution::None => {}
ObjectSafetyViolationSolution::AddSelfOrMakeSized {

8
compiler/rustc_middle/src/ty/diagnostics.rs
View File

@ -11,7 +11,7 @@ use crate::ty::{
};
use rustc_data_structures::fx::FxHashMap;
use rustc_errors::{Applicability, Diagnostic, DiagnosticArgValue, IntoDiagnosticArg};
use rustc_errors::{Applicability, DiagnosticArgValue, DiagnosticBuilder, IntoDiagnosticArg};
use rustc_hir as hir;
use rustc_hir::def::DefKind;
use rustc_hir::def_id::DefId;
@ -111,7 +111,7 @@ where
pub fn suggest_arbitrary_trait_bound<'tcx>(
tcx: TyCtxt<'tcx>,
generics: &hir::Generics<'_>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: PolyTraitPredicate<'tcx>,
associated_ty: Option<(&'static str, Ty<'tcx>)>,
) -> bool {
@ -216,7 +216,7 @@ fn suggest_changing_unsized_bound(
pub fn suggest_constraining_type_param(
tcx: TyCtxt<'_>,
generics: &hir::Generics<'_>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
param_name: &str,
constraint: &str,
def_id: Option<DefId>,
@ -235,7 +235,7 @@ pub fn suggest_constraining_type_param(
pub fn suggest_constraining_type_params<'a>(
tcx: TyCtxt<'_>,
generics: &hir::Generics<'_>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
param_names_and_constraints: impl Iterator<Item = (&'a str, &'a str, Option<DefId>)>,
span_to_replace: Option<Span>,
) -> bool {

14
compiler/rustc_mir_build/src/errors.rs
View File

@ -1,7 +1,7 @@
use crate::fluent_generated as fluent;
use rustc_errors::DiagnosticArgValue;
use rustc_errors::{
codes::*, AddToDiagnostic, Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder,
codes::*, AddToDiagnostic, Applicability, DiagCtxt, DiagnosticBuilder, EmissionGuarantee,
IntoDiagnostic, Level, MultiSpan, SubdiagnosticMessageOp,
};
use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic};
@ -420,7 +420,11 @@ pub struct UnsafeNotInheritedLintNote {
}
impl AddToDiagnostic for UnsafeNotInheritedLintNote {
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: F,
) {
diag.span_note(self.signature_span, fluent::mir_build_unsafe_fn_safe_body);
let body_start = self.body_span.shrink_to_lo();
let body_end = self.body_span.shrink_to_hi();
@ -863,7 +867,11 @@ pub struct Variant {
}
impl<'tcx> AddToDiagnostic for AdtDefinedHere<'tcx> {
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: F,
) {
diag.arg("ty", self.ty);
let mut spans = MultiSpan::from(self.adt_def_span);

3
compiler/rustc_mir_transform/src/errors.rs
View File

@ -87,6 +87,9 @@ pub(crate) struct RequiresUnsafeDetail {
}
impl RequiresUnsafeDetail {
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
fn add_subdiagnostics<G: EmissionGuarantee>(&self, diag: &mut DiagnosticBuilder<'_, G>) {
use UnsafetyViolationDetails::*;
match self.violation {

1
compiler/rustc_monomorphize/src/errors.rs
View File

@ -56,6 +56,7 @@ impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for UnusedGenericParamsHint {
// FIXME: I can figure out how to do a label with a fluent string with a fixed message,
// or a label with a dynamic value in a hard-coded string, but I haven't figured out
// how to combine the two. 😢
#[allow(rustc::untranslatable_diagnostic)]
diag.span_label(span, format!("generic parameter `{name}` is unused"));
}
diag

8
compiler/rustc_parse/src/errors.rs
View File

@ -3,7 +3,7 @@ use std::borrow::Cow;
use rustc_ast::token::Token;
use rustc_ast::{Path, Visibility};
use rustc_errors::{
codes::*, AddToDiagnostic, Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder,
codes::*, AddToDiagnostic, Applicability, DiagCtxt, DiagnosticBuilder, EmissionGuarantee,
IntoDiagnostic, Level, SubdiagnosticMessageOp,
};
use rustc_macros::{Diagnostic, Subdiagnostic};
@ -1475,7 +1475,11 @@ pub(crate) struct FnTraitMissingParen {
}
impl AddToDiagnostic for FnTraitMissingParen {
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_label(self.span, crate::fluent_generated::parse_fn_trait_missing_paren);
let applicability = if self.machine_applicable {
Applicability::MachineApplicable

6
compiler/rustc_parse/src/lexer/diagnostics.rs
View File

@ -1,6 +1,6 @@
use super::UnmatchedDelim;
use rustc_ast::token::Delimiter;
use rustc_errors::Diagnostic;
use rustc_errors::DiagnosticBuilder;
use rustc_span::source_map::SourceMap;
use rustc_span::Span;
@ -31,7 +31,7 @@ pub fn same_indentation_level(sm: &SourceMap, open_sp: Span, close_sp: Span) ->
// When we get a `)` or `]` for `{`, we should emit help message here
// it's more friendly compared to report `unmatched error` in later phase
pub fn report_missing_open_delim(
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
unmatched_delims: &[UnmatchedDelim],
) -> bool {
let mut reported_missing_open = false;
@ -55,7 +55,7 @@ pub fn report_missing_open_delim(
}
pub fn report_suspicious_mismatch_block(
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
diag_info: &TokenTreeDiagInfo,
sm: &SourceMap,
delim: Delimiter,

4
compiler/rustc_parse/src/parser/attr.rs
View File

@ -8,7 +8,7 @@ use super::{AttrWrapper, Capturing, FnParseMode, ForceCollect, Parser, PathStyle
use rustc_ast as ast;
use rustc_ast::attr;
use rustc_ast::token::{self, Delimiter, Nonterminal};
use rustc_errors::{codes::*, Diagnostic, PResult};
use rustc_errors::{codes::*, DiagnosticBuilder, PResult};
use rustc_span::{sym, BytePos, Span};
use thin_vec::ThinVec;
use tracing::debug;
@ -141,7 +141,7 @@ impl<'a> Parser<'a> {
fn annotate_following_item_if_applicable(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
span: Span,
attr_type: OuterAttributeType,
) -> Option<Span> {

12
compiler/rustc_parse/src/parser/diagnostics.rs
View File

@ -34,8 +34,8 @@ use rustc_ast::{
use rustc_ast_pretty::pprust;
use rustc_data_structures::fx::FxHashSet;
use rustc_errors::{
pluralize, AddToDiagnostic, Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder,
ErrorGuaranteed, FatalError, PErr, PResult,
pluralize, AddToDiagnostic, Applicability, DiagCtxt, DiagnosticBuilder, ErrorGuaranteed,
FatalError, PErr, PResult,
};
use rustc_session::errors::ExprParenthesesNeeded;
use rustc_span::source_map::Spanned;
@ -208,11 +208,11 @@ struct MultiSugg {
}
impl MultiSugg {
fn emit(self, err: &mut Diagnostic) {
fn emit(self, err: &mut DiagnosticBuilder<'_>) {
err.multipart_suggestion(self.msg, self.patches, self.applicability);
}
fn emit_verbose(self, err: &mut Diagnostic) {
fn emit_verbose(self, err: &mut DiagnosticBuilder<'_>) {
err.multipart_suggestion_verbose(self.msg, self.patches, self.applicability);
}
}
@ -846,7 +846,7 @@ impl<'a> Parser<'a> {
err.emit();
}
fn check_too_many_raw_str_terminators(&mut self, err: &mut Diagnostic) -> bool {
fn check_too_many_raw_str_terminators(&mut self, err: &mut DiagnosticBuilder<'_>) -> bool {
let sm = self.sess.source_map();
match (&self.prev_token.kind, &self.token.kind) {
(
@ -2179,7 +2179,7 @@ impl<'a> Parser<'a> {
pub(super) fn parameter_without_type(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
pat: P<ast::Pat>,
require_name: bool,
first_param: bool,

8
compiler/rustc_parse/src/parser/expr.rs
View File

@ -25,9 +25,7 @@ use rustc_ast::{Arm, BlockCheckMode, Expr, ExprKind, Label, Movability, RangeLim
use rustc_ast::{ClosureBinder, MetaItemLit, StmtKind};
use rustc_ast_pretty::pprust;
use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_errors::{
AddToDiagnostic, Applicability, Diagnostic, DiagnosticBuilder, PResult, StashKey,
};
use rustc_errors::{AddToDiagnostic, Applicability, DiagnosticBuilder, PResult, StashKey};
use rustc_lexer::unescape::unescape_char;
use rustc_macros::Subdiagnostic;
use rustc_session::errors::{report_lit_error, ExprParenthesesNeeded};
@ -865,7 +863,7 @@ impl<'a> Parser<'a> {
);
let mut err = self.dcx().struct_span_err(span, msg);
let suggest_parens = |err: &mut Diagnostic| {
let suggest_parens = |err: &mut DiagnosticBuilder<'_>| {
let suggestions = vec![
(span.shrink_to_lo(), "(".to_string()),
(span.shrink_to_hi(), ")".to_string()),
@ -3437,7 +3435,7 @@ impl<'a> Parser<'a> {
let mut recover_async = false;
let in_if_guard = self.restrictions.contains(Restrictions::IN_IF_GUARD);
let mut async_block_err = |e: &mut Diagnostic, span: Span| {
let mut async_block_err = |e: &mut DiagnosticBuilder<'_>, span: Span| {
recover_async = true;
errors::AsyncBlockIn2015 { span }.add_to_diagnostic(e);
errors::HelpUseLatestEdition::new().add_to_diagnostic(e);

9
compiler/rustc_passes/src/check_const.rs
View File

@ -156,9 +156,12 @@ impl<'tcx> CheckConstVisitor<'tcx> {
// is a pretty narrow case, however.
if tcx.sess.is_nightly_build() {
for gate in missing_secondary {
let note =
format!("add `#![feature({gate})]` to the crate attributes to enable",);
err.help(note);
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
err.help(format!(
"add `#![feature({gate})]` to the crate attributes to enable"
));
}
}

11
compiler/rustc_passes/src/errors.rs
View File

@ -6,9 +6,8 @@ use std::{
use crate::fluent_generated as fluent;
use rustc_ast::Label;
use rustc_errors::{
codes::*, AddToDiagnostic, Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder,
DiagnosticSymbolList, EmissionGuarantee, IntoDiagnostic, Level, MultiSpan,
SubdiagnosticMessageOp,
codes::*, AddToDiagnostic, Applicability, DiagCtxt, DiagnosticBuilder, DiagnosticSymbolList,
EmissionGuarantee, IntoDiagnostic, Level, MultiSpan, SubdiagnosticMessageOp,
};
use rustc_hir::{self as hir, ExprKind, Target};
use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic};
@ -1754,7 +1753,11 @@ pub struct UnusedVariableStringInterp {
}
impl AddToDiagnostic for UnusedVariableStringInterp {
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: F,
) {
diag.span_label(self.lit, crate::fluent_generated::passes_maybe_string_interpolation);
diag.multipart_suggestion(
crate::fluent_generated::passes_string_interpolation_only_works,

8
compiler/rustc_pattern_analysis/src/errors.rs
View File

@ -1,4 +1,4 @@
use rustc_errors::{AddToDiagnostic, Diagnostic, SubdiagnosticMessageOp};
use rustc_errors::{AddToDiagnostic, DiagnosticBuilder, EmissionGuarantee, SubdiagnosticMessageOp};
use rustc_macros::{LintDiagnostic, Subdiagnostic};
use rustc_middle::thir::Pat;
use rustc_middle::ty::Ty;
@ -62,7 +62,11 @@ pub struct Overlap<'tcx> {
}
impl<'tcx> AddToDiagnostic for Overlap<'tcx> {
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,
) {
let Overlap { span, range } = self;
// FIXME(mejrs) unfortunately `#[derive(LintDiagnostic)]`

16
compiler/rustc_resolve/src/diagnostics.rs
View File

@ -7,7 +7,7 @@ use rustc_ast_pretty::pprust;
use rustc_data_structures::fx::FxHashSet;
use rustc_errors::{
codes::*, pluralize, report_ambiguity_error, struct_span_code_err, Applicability, DiagCtxt,
Diagnostic, DiagnosticBuilder, ErrorGuaranteed, MultiSpan, SuggestionStyle,
DiagnosticBuilder, ErrorGuaranteed, MultiSpan, SuggestionStyle,
};
use rustc_feature::BUILTIN_ATTRIBUTES;
use rustc_hir::def::Namespace::{self, *};
@ -360,7 +360,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
/// ```
fn add_suggestion_for_rename_of_use(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
name: Symbol,
import: Import<'_>,
binding_span: Span,
@ -436,7 +436,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
/// as characters expected by span manipulations won't be present.
fn add_suggestion_for_duplicate_nested_use(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
import: Import<'_>,
binding_span: Span,
) {
@ -1399,7 +1399,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
pub(crate) fn unresolved_macro_suggestions(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
macro_kind: MacroKind,
parent_scope: &ParentScope<'a>,
ident: Ident,
@ -1515,7 +1515,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
pub(crate) fn add_typo_suggestion(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
suggestion: Option<TypoSuggestion>,
span: Span,
) -> bool {
@ -2461,7 +2461,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
/// Finds a cfg-ed out item inside `module` with the matching name.
pub(crate) fn find_cfg_stripped(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
segment: &Symbol,
module: DefId,
) {
@ -2670,7 +2670,7 @@ pub(crate) enum DiagnosticMode {
pub(crate) fn import_candidates(
tcx: TyCtxt<'_>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
// This is `None` if all placement locations are inside expansions
use_placement_span: Option<Span>,
candidates: &[ImportSuggestion],
@ -2696,7 +2696,7 @@ pub(crate) fn import_candidates(
/// found and suggested, returns `true`, otherwise returns `false`.
fn show_candidates(
tcx: TyCtxt<'_>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
// This is `None` if all placement locations are inside expansions
use_placement_span: Option<Span>,
candidates: &[ImportSuggestion],

71
compiler/rustc_resolve/src/late/diagnostics.rs
View File

@ -1,3 +1,5 @@
// ignore-tidy-filelength
use crate::diagnostics::{ImportSuggestion, LabelSuggestion, TypoSuggestion};
use crate::late::{AliasPossibility, LateResolutionVisitor, RibKind};
use crate::late::{LifetimeBinderKind, LifetimeRes, LifetimeRibKind, LifetimeUseSet};
@ -16,8 +18,8 @@ use rustc_ast::{
use rustc_ast_pretty::pprust::where_bound_predicate_to_string;
use rustc_data_structures::fx::FxHashSet;
use rustc_errors::{
codes::*, pluralize, struct_span_code_err, Applicability, Diagnostic, DiagnosticBuilder,
ErrorGuaranteed, MultiSpan, SuggestionStyle,
codes::*, pluralize, struct_span_code_err, Applicability, DiagnosticBuilder, ErrorGuaranteed,
MultiSpan, SuggestionStyle,
};
use rustc_hir as hir;
use rustc_hir::def::{self, CtorKind, CtorOf, DefKind};
@ -496,7 +498,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn detect_assoc_type_constraint_meant_as_path(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
base_error: &BaseError,
) {
let Some(ty) = self.diagnostic_metadata.current_type_path else {
@ -537,7 +539,12 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
}
}
fn suggest_self_or_self_ref(&mut self, err: &mut Diagnostic, path: &[Segment], span: Span) {
fn suggest_self_or_self_ref(
&mut self,
err: &mut DiagnosticBuilder<'_>,
path: &[Segment],
span: Span,
) {
if !self.self_type_is_available() {
return;
}
@ -582,7 +589,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn try_lookup_name_relaxed(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
path: &[Segment],
following_seg: Option<&Segment>,
@ -786,7 +793,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_trait_and_bounds(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
res: Option<Res>,
span: Span,
@ -863,7 +870,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_typo(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
path: &[Segment],
following_seg: Option<&Segment>,
@ -903,7 +910,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_shadowed(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
path: &[Segment],
following_seg: Option<&Segment>,
@ -936,7 +943,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn err_code_special_cases(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
path: &[Segment],
span: Span,
@ -981,7 +988,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
/// Emit special messages for unresolved `Self` and `self`.
fn suggest_self_ty(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
path: &[Segment],
span: Span,
@ -1008,7 +1015,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_self_value(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
path: &[Segment],
span: Span,
@ -1090,7 +1097,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_at_operator_in_slice_pat_with_range(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
path: &[Segment],
) {
let Some(pat) = self.diagnostic_metadata.current_pat else { return };
@ -1129,7 +1136,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_swapping_misplaced_self_ty_and_trait(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
res: Option<Res>,
span: Span,
@ -1155,7 +1162,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
}
}
fn suggest_bare_struct_literal(&mut self, err: &mut Diagnostic) {
fn suggest_bare_struct_literal(&mut self, err: &mut DiagnosticBuilder<'_>) {
if let Some(span) = self.diagnostic_metadata.current_block_could_be_bare_struct_literal {
err.multipart_suggestion(
"you might have meant to write a `struct` literal",
@ -1170,7 +1177,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_changing_type_to_const_param(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
res: Option<Res>,
source: PathSource<'_>,
span: Span,
@ -1222,7 +1229,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_pattern_match_with_let(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
span: Span,
) -> bool {
@ -1277,7 +1284,11 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
}
/// Given `where <T as Bar>::Baz: String`, suggest `where T: Bar<Baz = String>`.
fn restrict_assoc_type_in_where_clause(&mut self, span: Span, err: &mut Diagnostic) -> bool {
fn restrict_assoc_type_in_where_clause(
&mut self,
span: Span,
err: &mut DiagnosticBuilder<'_>,
) -> bool {
// Detect that we are actually in a `where` predicate.
let (bounded_ty, bounds, where_span) =
if let Some(ast::WherePredicate::BoundPredicate(ast::WhereBoundPredicate {
@ -1410,7 +1421,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
/// Returns `true` if able to provide context-dependent help.
fn smart_resolve_context_dependent_help(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
span: Span,
source: PathSource<'_>,
path: &[Segment],
@ -1421,7 +1432,8 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
let ns = source.namespace();
let is_expected = &|res| source.is_expected(res);
let path_sep = |this: &mut Self, err: &mut Diagnostic, expr: &Expr, kind: DefKind| {
let path_sep =
|this: &mut Self, err: &mut DiagnosticBuilder<'_>, expr: &Expr, kind: DefKind| {
const MESSAGE: &str = "use the path separator to refer to an item";
let (lhs_span, rhs_span) = match &expr.kind {
@ -1442,7 +1454,8 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
true
} else if kind == DefKind::Struct
&& let Some(lhs_source_span) = lhs_span.find_ancestor_inside(expr.span)
&& let Ok(snippet) = this.r.tcx.sess.source_map().span_to_snippet(lhs_source_span)
&& let Ok(snippet) =
this.r.tcx.sess.source_map().span_to_snippet(lhs_source_span)
{
// The LHS is a type that originates from a macro call.
// We have to add angle brackets around it.
@ -1464,7 +1477,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
}
};
let find_span = |source: &PathSource<'_>, err: &mut Diagnostic| {
let find_span = |source: &PathSource<'_>, err: &mut DiagnosticBuilder<'_>| {
match source {
PathSource::Expr(Some(Expr { span, kind: ExprKind::Call(_, _), .. }))
| PathSource::TupleStruct(span, _) => {
@ -1820,7 +1833,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_alternative_construction_methods(
&mut self,
def_id: DefId,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
path_span: Span,
call_span: Span,
args: &[P<Expr>],
@ -2250,7 +2263,11 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
// try to give a suggestion for this pattern: `name = blah`, which is common in other languages
// suggest `let name = blah` to introduce a new binding
fn let_binding_suggestion(&mut self, err: &mut Diagnostic, ident_span: Span) -> bool {
fn let_binding_suggestion(
&mut self,
err: &mut DiagnosticBuilder<'_>,
ident_span: Span,
) -> bool {
if let Some(Expr { kind: ExprKind::Assign(lhs, ..), .. }) =
self.diagnostic_metadata.in_assignment
&& let ast::ExprKind::Path(None, ref path) = lhs.kind
@ -2351,7 +2368,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
/// Adds a suggestion for using an enum's variant when an enum is used instead.
fn suggest_using_enum_variant(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
source: PathSource<'_>,
def_id: DefId,
span: Span,
@ -2727,9 +2744,9 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn suggest_introducing_lifetime(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
name: Option<&str>,
suggest: impl Fn(&mut Diagnostic, bool, Span, Cow<'static, str>, String) -> bool,
suggest: impl Fn(&mut DiagnosticBuilder<'_>, bool, Span, Cow<'static, str>, String) -> bool,
) {
let mut suggest_note = true;
for rib in self.lifetime_ribs.iter().rev() {
@ -2887,7 +2904,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
fn add_missing_lifetime_specifiers_label(
&mut self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
lifetime_refs: Vec<MissingLifetime>,
function_param_lifetimes: Option<(Vec<MissingLifetime>, Vec<ElisionFnParameter>)>,
) {

3
compiler/rustc_session/src/config.rs
View File

@ -2468,6 +2468,9 @@ pub fn parse_externs(
));
let adjusted_name = name.replace('-', "_");
if is_ascii_ident(&adjusted_name) {
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
error.help(format!(
"consider replacing the dashes with underscores: `{adjusted_name}`"
));

13
compiler/rustc_session/src/parse.rs
View File

@ -15,7 +15,8 @@ use rustc_data_structures::fx::{FxHashMap, FxIndexMap, FxIndexSet};
use rustc_data_structures::sync::{AppendOnlyVec, Lock, Lrc};
use rustc_errors::{emitter::SilentEmitter, DiagCtxt};
use rustc_errors::{
fallback_fluent_bundle, Diagnostic, DiagnosticBuilder, DiagnosticMessage, MultiSpan, StashKey,
fallback_fluent_bundle, DiagnosticBuilder, DiagnosticMessage, EmissionGuarantee, MultiSpan,
StashKey,
};
use rustc_feature::{find_feature_issue, GateIssue, UnstableFeatures};
use rustc_span::edition::Edition;
@ -156,7 +157,11 @@ pub fn feature_warn_issue(
}
/// Adds the diagnostics for a feature to an existing error.
pub fn add_feature_diagnostics(err: &mut Diagnostic, sess: &Session, feature: Symbol) {
pub fn add_feature_diagnostics<G: EmissionGuarantee>(
err: &mut DiagnosticBuilder<'_, G>,
sess: &Session,
feature: Symbol,
) {
add_feature_diagnostics_for_issue(err, sess, feature, GateIssue::Language, false);
}
@ -165,8 +170,8 @@ pub fn add_feature_diagnostics(err: &mut Diagnostic, sess: &Session, feature: Sy
/// This variant allows you to control whether it is a library or language feature.
/// Almost always, you want to use this for a language feature. If so, prefer
/// `add_feature_diagnostics`.
pub fn add_feature_diagnostics_for_issue(
err: &mut Diagnostic,
pub fn add_feature_diagnostics_for_issue<G: EmissionGuarantee>(
err: &mut DiagnosticBuilder<'_, G>,
sess: &Session,
feature: Symbol,
issue: GateIssue,

10
compiler/rustc_trait_selection/src/errors.rs
View File

@ -1,7 +1,7 @@
use crate::fluent_generated as fluent;
use rustc_errors::{
codes::*, AddToDiagnostic, Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder,
EmissionGuarantee, IntoDiagnostic, Level, SubdiagnosticMessageOp,
codes::*, AddToDiagnostic, Applicability, DiagCtxt, DiagnosticBuilder, EmissionGuarantee,
IntoDiagnostic, Level, SubdiagnosticMessageOp,
};
use rustc_macros::Diagnostic;
use rustc_middle::ty::{self, ClosureKind, PolyTraitRef, Ty};
@ -102,7 +102,11 @@ pub enum AdjustSignatureBorrow {
}
impl AddToDiagnostic for AdjustSignatureBorrow {
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: F,
) {
match self {
AdjustSignatureBorrow::Borrow { to_borrow } => {
diag.arg("len", to_borrow.len());

4
compiler/rustc_trait_selection/src/traits/coherence.rs
View File

@ -18,7 +18,7 @@ use crate::traits::{
Obligation, ObligationCause, PredicateObligation, PredicateObligations, SelectionContext,
};
use rustc_data_structures::fx::FxIndexSet;
use rustc_errors::Diagnostic;
use rustc_errors::{DiagnosticBuilder, EmissionGuarantee};
use rustc_hir::def::DefKind;
use rustc_hir::def_id::{DefId, LOCAL_CRATE};
use rustc_infer::infer::{DefineOpaqueTypes, InferCtxt, TyCtxtInferExt};
@ -58,7 +58,7 @@ pub struct OverlapResult<'tcx> {
pub involves_placeholder: bool,
}
pub fn add_placeholder_note(err: &mut Diagnostic) {
pub fn add_placeholder_note<G: EmissionGuarantee>(err: &mut DiagnosticBuilder<'_, G>) {
err.note(
"this behavior recently changed as a result of a bug fix; \
see rust-lang/rust#56105 for details",

91
compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
View File

@ -13,7 +13,7 @@ use hir::def::CtorOf;
use rustc_data_structures::fx::FxHashSet;
use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_errors::{
codes::*, pluralize, struct_span_code_err, Applicability, Diagnostic, DiagnosticBuilder,
codes::*, pluralize, struct_span_code_err, Applicability, DiagnosticBuilder, EmissionGuarantee,
MultiSpan, Style, SuggestionStyle,
};
use rustc_hir as hir;
@ -116,12 +116,12 @@ fn predicate_constraint(generics: &hir::Generics<'_>, pred: ty::Predicate<'_>) -
/// Type parameter needs more bounds. The trivial case is `T` `where T: Bound`, but
/// it can also be an `impl Trait` param that needs to be decomposed to a type
/// param for cleaner code.
pub fn suggest_restriction<'tcx>(
pub fn suggest_restriction<'tcx, G: EmissionGuarantee>(
tcx: TyCtxt<'tcx>,
item_id: LocalDefId,
hir_generics: &hir::Generics<'tcx>,
msg: &str,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
fn_sig: Option<&hir::FnSig<'_>>,
projection: Option<&ty::AliasTy<'_>>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
@ -240,7 +240,7 @@ pub fn suggest_restriction<'tcx>(
impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_restricting_param_bound(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
associated_ty: Option<(&'static str, Ty<'tcx>)>,
mut body_id: LocalDefId,
@ -450,7 +450,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_dereferences(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) -> bool {
let mut code = obligation.cause.code();
@ -743,10 +743,11 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn get_closure_name(
&self,
def_id: DefId,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
msg: Cow<'static, str>,
) -> Option<Symbol> {
let get_name = |err: &mut Diagnostic, kind: &hir::PatKind<'_>| -> Option<Symbol> {
let get_name =
|err: &mut DiagnosticBuilder<'_>, kind: &hir::PatKind<'_>| -> Option<Symbol> {
// Get the local name of this closure. This can be inaccurate because
// of the possibility of reassignment, but this should be good enough.
match &kind {
@ -778,7 +779,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_fn_call(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) -> bool {
// It doesn't make sense to make this suggestion outside of typeck...
@ -894,7 +895,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn check_for_binding_assigned_block_without_tail_expression(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) {
let mut span = obligation.cause.span;
@ -971,7 +972,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_add_clone_to_arg(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) -> bool {
let self_ty = self.resolve_vars_if_possible(trait_pred.self_ty());
@ -1156,7 +1157,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_add_reference_to_arg(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
poly_trait_pred: ty::PolyTraitPredicate<'tcx>,
has_custom_message: bool,
) -> bool {
@ -1374,7 +1375,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
// Suggest borrowing the type
fn suggest_borrowing_for_object_cast(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
obligation: &PredicateObligation<'tcx>,
self_ty: Ty<'tcx>,
target_ty: Ty<'tcx>,
@ -1410,7 +1411,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_remove_reference(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) -> bool {
let mut span = obligation.cause.span;
@ -1529,7 +1530,11 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
false
}
fn suggest_remove_await(&self, obligation: &PredicateObligation<'tcx>, err: &mut Diagnostic) {
fn suggest_remove_await(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut DiagnosticBuilder<'_>,
) {
let hir = self.tcx.hir();
if let ObligationCauseCode::AwaitableExpr(hir_id) = obligation.cause.code().peel_derives()
&& let hir::Node::Expr(expr) = self.tcx.hir_node(*hir_id)
@ -1599,7 +1604,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_change_mut(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) {
let points_at_arg = matches!(
@ -1677,7 +1682,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_semicolon_removal(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
span: Span,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) -> bool {
@ -1731,7 +1736,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
/// emitted.
fn suggest_impl_trait(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
obligation: &PredicateObligation<'tcx>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) -> bool {
@ -1913,7 +1918,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn note_conflicting_fn_args(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
cause: &ObligationCauseCode<'tcx>,
expected: Ty<'tcx>,
found: Ty<'tcx>,
@ -2120,7 +2125,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_fully_qualified_path(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
item_def_id: DefId,
span: Span,
trait_ref: DefId,
@ -2185,9 +2190,9 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
///
/// Returns `true` if an async-await specific note was added to the diagnostic.
#[instrument(level = "debug", skip_all, fields(?obligation.predicate, ?obligation.cause.span))]
fn maybe_note_obligation_cause_for_async_await(
fn maybe_note_obligation_cause_for_async_await<G: EmissionGuarantee>(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
obligation: &PredicateObligation<'tcx>,
) -> bool {
let hir = self.tcx.hir();
@ -2421,9 +2426,9 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
/// Unconditionally adds the diagnostic note described in
/// `maybe_note_obligation_cause_for_async_await`'s documentation comment.
#[instrument(level = "debug", skip_all)]
fn note_obligation_cause_for_async_await(
fn note_obligation_cause_for_async_await<G: EmissionGuarantee>(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
interior_or_upvar_span: CoroutineInteriorOrUpvar,
is_async: bool,
outer_coroutine: Option<DefId>,
@ -2656,10 +2661,10 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
);
}
fn note_obligation_cause_code<T>(
fn note_obligation_cause_code<G: EmissionGuarantee, T>(
&self,
body_id: LocalDefId,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
predicate: T,
param_env: ty::ParamEnv<'tcx>,
cause_code: &ObligationCauseCode<'tcx>,
@ -3507,7 +3512,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
)]
fn suggest_await_before_try(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
obligation: &PredicateObligation<'tcx>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
span: Span,
@ -3565,7 +3570,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_floating_point_literal(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_ref: &ty::PolyTraitRef<'tcx>,
) {
let rhs_span = match obligation.cause.code() {
@ -3589,7 +3594,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_derive(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) {
let Some(diagnostic_name) = self.tcx.get_diagnostic_name(trait_pred.def_id()) else {
@ -3655,7 +3660,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_dereferencing_index(
&self,
obligation: &PredicateObligation<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_pred: ty::PolyTraitPredicate<'tcx>,
) {
if let ObligationCauseCode::ImplDerivedObligation(_) = obligation.cause.code()
@ -3675,10 +3680,10 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
}
fn note_function_argument_obligation(
fn note_function_argument_obligation<G: EmissionGuarantee>(
&self,
body_id: LocalDefId,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
arg_hir_id: HirId,
parent_code: &ObligationCauseCode<'tcx>,
param_env: ty::ParamEnv<'tcx>,
@ -3860,11 +3865,11 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
}
fn suggest_option_method_if_applicable(
fn suggest_option_method_if_applicable<G: EmissionGuarantee>(
&self,
failed_pred: ty::Predicate<'tcx>,
param_env: ty::ParamEnv<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
expr: &hir::Expr<'_>,
) {
let tcx = self.tcx;
@ -3934,7 +3939,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
}
fn look_for_iterator_item_mistakes(
fn look_for_iterator_item_mistakes<G: EmissionGuarantee>(
&self,
assocs_in_this_method: &[Option<(Span, (DefId, Ty<'tcx>))>],
typeck_results: &TypeckResults<'tcx>,
@ -3942,7 +3947,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
param_env: ty::ParamEnv<'tcx>,
path_segment: &hir::PathSegment<'_>,
args: &[hir::Expr<'_>],
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
) {
let tcx = self.tcx;
// Special case for iterator chains, we look at potential failures of `Iterator::Item`
@ -4037,13 +4042,13 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
}
fn point_at_chain(
fn point_at_chain<G: EmissionGuarantee>(
&self,
expr: &hir::Expr<'_>,
typeck_results: &TypeckResults<'tcx>,
type_diffs: Vec<TypeError<'tcx>>,
param_env: ty::ParamEnv<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
) {
let mut primary_spans = vec![];
let mut span_labels = vec![];
@ -4279,7 +4284,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
/// the array into a slice.
fn suggest_convert_to_slice(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
obligation: &PredicateObligation<'tcx>,
trait_ref: ty::PolyTraitRef<'tcx>,
candidate_impls: &[ImplCandidate<'tcx>],
@ -4351,7 +4356,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn explain_hrtb_projection(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
pred: ty::PolyTraitPredicate<'tcx>,
param_env: ty::ParamEnv<'tcx>,
cause: &ObligationCause<'tcx>,
@ -4417,7 +4422,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn suggest_desugaring_async_fn_in_trait(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_ref: ty::PolyTraitRef<'tcx>,
) {
// Don't suggest if RTN is active -- we should prefer a where-clause bound instead.
@ -4508,7 +4513,7 @@ fn hint_missing_borrow<'tcx>(
found: Ty<'tcx>,
expected: Ty<'tcx>,
found_node: Node<'_>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) {
if matches!(found_node, Node::TraitItem(..)) {
return;
@ -4867,9 +4872,9 @@ pub fn suggest_desugaring_async_fn_to_impl_future_in_trait<'tcx>(
/// On `impl` evaluation cycles, look for `Self::AssocTy` restrictions in `where` clauses, explain
/// they are not allowed and if possible suggest alternatives.
fn point_at_assoc_type_restriction(
fn point_at_assoc_type_restriction<G: EmissionGuarantee>(
tcx: TyCtxt<'_>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
self_ty_str: &str,
trait_name: &str,
predicate: ty::Predicate<'_>,

45
compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs
View File

@ -21,8 +21,8 @@ use crate::traits::{
};
use rustc_data_structures::fx::{FxHashMap, FxIndexMap};
use rustc_errors::{
codes::*, pluralize, struct_span_code_err, Applicability, Diagnostic, DiagnosticBuilder,
ErrorGuaranteed, MultiSpan, StashKey, StringPart,
codes::*, pluralize, struct_span_code_err, Applicability, DiagnosticBuilder, ErrorGuaranteed,
MultiSpan, StashKey, StringPart,
};
use rustc_hir as hir;
use rustc_hir::def::{DefKind, Namespace, Res};
@ -185,7 +185,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
predicate: &T,
span: Span,
suggest_increasing_limit: bool,
mutate: impl FnOnce(&mut Diagnostic),
mutate: impl FnOnce(&mut DiagnosticBuilder<'_>),
) -> !
where
T: fmt::Display + TypeFoldable<TyCtxt<'tcx>> + Print<'tcx, FmtPrinter<'tcx, 'tcx>>,
@ -272,7 +272,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
);
}
fn suggest_new_overflow_limit(&self, err: &mut Diagnostic) {
fn suggest_new_overflow_limit(&self, err: &mut DiagnosticBuilder<'_>) {
let suggested_limit = match self.tcx.recursion_limit() {
Limit(0) => Limit(2),
limit => limit * 2,
@ -1020,7 +1020,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
&self,
obligation: &PredicateObligation<'tcx>,
trait_ref: ty::TraitRef<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) -> bool {
let span = obligation.cause.span;
struct V<'v> {
@ -1810,7 +1810,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
impl_candidates: &[ImplCandidate<'tcx>],
trait_ref: ty::PolyTraitRef<'tcx>,
body_def_id: LocalDefId,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
other: bool,
param_env: ty::ParamEnv<'tcx>,
) -> bool {
@ -1897,7 +1897,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
let other = if other { "other " } else { "" };
let report = |candidates: Vec<TraitRef<'tcx>>, err: &mut Diagnostic| {
let report = |candidates: Vec<TraitRef<'tcx>>, err: &mut DiagnosticBuilder<'_>| {
if candidates.is_empty() {
return false;
}
@ -2032,7 +2032,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
obligation: &PredicateObligation<'tcx>,
trait_predicate: ty::Binder<'tcx, ty::TraitPredicate<'tcx>>,
body_def_id: LocalDefId,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) {
// This is *almost* equivalent to
// `obligation.cause.code().peel_derives()`, but it gives us the
@ -2103,7 +2103,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
/// a probable version mismatch is added to `err`
fn note_version_mismatch(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
trait_ref: &ty::PolyTraitRef<'tcx>,
) -> bool {
let get_trait_impls = |trait_def_id| {
@ -2572,7 +2572,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn annotate_source_of_ambiguity(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
ambiguities: &[ambiguity::Ambiguity],
predicate: ty::Predicate<'tcx>,
) {
@ -2715,7 +2715,11 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
})
}
fn note_obligation_cause(&self, err: &mut Diagnostic, obligation: &PredicateObligation<'tcx>) {
fn note_obligation_cause(
&self,
err: &mut DiagnosticBuilder<'_>,
obligation: &PredicateObligation<'tcx>,
) {
// First, attempt to add note to this error with an async-await-specific
// message, and fall back to regular note otherwise.
if !self.maybe_note_obligation_cause_for_async_await(err, obligation) {
@ -2744,7 +2748,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
#[instrument(level = "debug", skip_all)]
fn suggest_unsized_bound_if_applicable(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
obligation: &PredicateObligation<'tcx>,
) {
let ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) =
@ -2770,7 +2774,12 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
#[instrument(level = "debug", skip_all)]
fn maybe_suggest_unsized_generics(&self, err: &mut Diagnostic, span: Span, node: Node<'tcx>) {
fn maybe_suggest_unsized_generics(
&self,
err: &mut DiagnosticBuilder<'_>,
span: Span,
node: Node<'tcx>,
) {
let Some(generics) = node.generics() else {
return;
};
@ -2822,7 +2831,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn maybe_indirection_for_unsized(
&self,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
item: &Item<'tcx>,
param: &GenericParam<'tcx>,
) -> bool {
@ -3016,7 +3025,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn add_tuple_trait_message(
&self,
obligation_cause_code: &ObligationCauseCode<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
) {
match obligation_cause_code {
ObligationCauseCode::RustCall => {
@ -3041,7 +3050,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
obligation: &PredicateObligation<'tcx>,
trait_ref: ty::PolyTraitRef<'tcx>,
trait_predicate: &ty::PolyTraitPredicate<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
span: Span,
is_fn_trait: bool,
suggested: bool,
@ -3122,7 +3131,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn add_help_message_for_fn_trait(
&self,
trait_ref: ty::PolyTraitRef<'tcx>,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_>,
implemented_kind: ty::ClosureKind,
params: ty::Binder<'tcx, Ty<'tcx>>,
) {
@ -3178,7 +3187,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
fn maybe_add_note_for_unsatisfied_const(
&self,
_trait_predicate: &ty::PolyTraitPredicate<'tcx>,
_err: &mut Diagnostic,
_err: &mut DiagnosticBuilder<'_>,
_span: Span,
) -> UnsatisfiedConst {
let unsatisfied_const = UnsatisfiedConst(false);

7
compiler/rustc_trait_selection/src/traits/select/mod.rs
View File

@ -29,7 +29,7 @@ use crate::traits::ProjectionCacheKey;
use crate::traits::Unimplemented;
use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet};
use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_errors::Diagnostic;
use rustc_errors::{DiagnosticBuilder, EmissionGuarantee};
use rustc_hir as hir;
use rustc_hir::def_id::DefId;
use rustc_infer::infer::BoundRegionConversionTime;
@ -70,7 +70,10 @@ pub enum IntercrateAmbiguityCause<'tcx> {
impl<'tcx> IntercrateAmbiguityCause<'tcx> {
/// Emits notes when the overlap is caused by complex intercrate ambiguities.
/// See #23980 for details.
pub fn add_intercrate_ambiguity_hint(&self, err: &mut Diagnostic) {
pub fn add_intercrate_ambiguity_hint<G: EmissionGuarantee>(
&self,
err: &mut DiagnosticBuilder<'_, G>,
) {
err.note(self.intercrate_ambiguity_hint());
}

6
compiler/rustc_trait_selection/src/traits/specialize/mod.rs
View File

@ -20,7 +20,7 @@ use crate::traits::{
self, coherence, FutureCompatOverlapErrorKind, ObligationCause, ObligationCtxt,
};
use rustc_data_structures::fx::FxIndexSet;
use rustc_errors::{codes::*, DelayDm, Diagnostic};
use rustc_errors::{codes::*, DelayDm, DiagnosticBuilder, EmissionGuarantee};
use rustc_hir::def_id::{DefId, LocalDefId};
use rustc_middle::ty::{self, ImplSubject, Ty, TyCtxt, TypeVisitableExt};
use rustc_middle::ty::{GenericArgs, GenericArgsRef};
@ -395,11 +395,11 @@ fn report_conflicting_impls<'tcx>(
// Work to be done after we've built the DiagnosticBuilder. We have to define it
// now because the lint emit methods don't return back the DiagnosticBuilder
// that's passed in.
fn decorate<'tcx>(
fn decorate<'tcx, G: EmissionGuarantee>(
tcx: TyCtxt<'tcx>,
overlap: &OverlapError<'tcx>,
impl_span: Span,
err: &mut Diagnostic,
err: &mut DiagnosticBuilder<'_, G>,
) {
if (overlap.trait_ref, overlap.self_ty).references_error() {
err.downgrade_to_delayed_bug();

4
compiler/rustc_trait_selection/src/traits/util.rs
View File

@ -3,7 +3,7 @@ use std::collections::BTreeMap;
use super::NormalizeExt;
use super::{ObligationCause, PredicateObligation, SelectionContext};
use rustc_data_structures::fx::FxHashSet;
use rustc_errors::Diagnostic;
use rustc_errors::DiagnosticBuilder;
use rustc_hir::def_id::DefId;
use rustc_infer::infer::{InferCtxt, InferOk};
use rustc_middle::ty::GenericArgsRef;
@ -46,7 +46,7 @@ impl<'tcx> TraitAliasExpansionInfo<'tcx> {
/// trait aliases.
pub fn label_with_exp_info(
&self,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_>,
top_label: &'static str,
use_desc: &str,
) {

9
src/librustdoc/passes/collect_intra_doc_links.rs
View File

@ -8,7 +8,7 @@ use rustc_data_structures::{
fx::{FxHashMap, FxHashSet},
intern::Interned,
};
use rustc_errors::{Applicability, Diagnostic, DiagnosticMessage};
use rustc_errors::{Applicability, DiagnosticBuilder, DiagnosticMessage};
use rustc_hir::def::Namespace::*;
use rustc_hir::def::{DefKind, Namespace, PerNS};
use rustc_hir::def_id::{DefId, CRATE_DEF_ID};
@ -1173,7 +1173,8 @@ impl LinkCollector<'_, '_> {
) {
// The resolved item did not match the disambiguator; give a better error than 'not found'
let msg = format!("incompatible link kind for `{path_str}`");
let callback = |diag: &mut Diagnostic, sp: Option<rustc_span::Span>, link_range| {
let callback =
|diag: &mut DiagnosticBuilder<'_, ()>, sp: Option<rustc_span::Span>, link_range| {
let note = format!(
"this link resolved to {} {}, which is not {} {}",
resolved.article(),
@ -1676,7 +1677,7 @@ fn report_diagnostic(
lint: &'static Lint,
msg: impl Into<DiagnosticMessage> + Display,
DiagnosticInfo { item, ori_link: _, dox, link_range }: &DiagnosticInfo<'_>,
decorate: impl FnOnce(&mut Diagnostic, Option<rustc_span::Span>, MarkdownLinkRange),
decorate: impl FnOnce(&mut DiagnosticBuilder<'_, ()>, Option<rustc_span::Span>, MarkdownLinkRange),
) {
let Some(hir_id) = DocContext::as_local_hir_id(tcx, item.item_id) else {
// If non-local, no need to check anything.
@ -2124,7 +2125,7 @@ fn ambiguity_error(
/// disambiguator.
fn suggest_disambiguator(
res: Res,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_, ()>,
path_str: &str,
link_range: MarkdownLinkRange,
sp: Option<rustc_span::Span>,

4
src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs
View File

@ -4,7 +4,7 @@ use clippy_utils::expr_or_init;
use clippy_utils::source::snippet;
use clippy_utils::sugg::Sugg;
use clippy_utils::ty::{get_discriminant_value, is_isize_or_usize};
use rustc_errors::{Applicability, Diagnostic, SuggestionStyle};
use rustc_errors::{Applicability, DiagnosticBuilder, SuggestionStyle};
use rustc_hir::def::{DefKind, Res};
use rustc_hir::{BinOpKind, Expr, ExprKind};
use rustc_lint::LateContext;
@ -177,7 +177,7 @@ fn offer_suggestion(
expr: &Expr<'_>,
cast_expr: &Expr<'_>,
cast_to_span: Span,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_, ()>,
) {
let cast_to_snip = snippet(cx, cast_to_span, "..");
let suggestion = if cast_to_snip == "_" {

4
src/tools/clippy/clippy_lints/src/functions/result.rs
View File

@ -1,4 +1,4 @@
use rustc_errors::Diagnostic;
use rustc_errors::DiagnosticBuilder;
use rustc_hir as hir;
use rustc_lint::{LateContext, LintContext};
use rustc_middle::lint::in_external_macro;
@ -135,7 +135,7 @@ fn check_result_large_err<'tcx>(cx: &LateContext<'tcx>, err_ty: Ty<'tcx>, hir_ty
RESULT_LARGE_ERR,
hir_ty_span,
"the `Err`-variant returned from this function is very large",
|diag: &mut Diagnostic| {
|diag: &mut DiagnosticBuilder<'_, ()>| {
diag.span_label(hir_ty_span, format!("the `Err`-variant is at least {ty_size} bytes"));
diag.help(format!("try reducing the size of `{err_ty}`, for example by boxing large elements or replacing it with `Box<{err_ty}>`"));
},

4
src/tools/clippy/clippy_lints/src/if_let_mutex.rs
View File

@ -1,7 +1,7 @@
use clippy_utils::diagnostics::span_lint_and_then;
use clippy_utils::ty::is_type_diagnostic_item;
use clippy_utils::{higher, SpanlessEq};
use rustc_errors::Diagnostic;
use rustc_errors::DiagnosticBuilder;
use rustc_hir::intravisit::{self as visit, Visitor};
use rustc_hir::{Expr, ExprKind};
use rustc_lint::{LateContext, LateLintPass};
@ -59,7 +59,7 @@ impl<'tcx> LateLintPass<'tcx> for IfLetMutex {
arm_visit.visit_expr(if_else);
if let Some(arm_mutex) = arm_visit.found_mutex_if_same_as(op_mutex) {
let diag = |diag: &mut Diagnostic| {
let diag = |diag: &mut DiagnosticBuilder<'_, ()>| {
diag.span_label(
op_mutex.span,
"this Mutex will remain locked for the entire `if let`-block...",

4
src/tools/clippy/clippy_lints/src/implicit_hasher.rs
View File

@ -1,7 +1,7 @@
use std::borrow::Cow;
use std::collections::BTreeMap;
use rustc_errors::Diagnostic;
use rustc_errors::DiagnosticBuilder;
use rustc_hir as hir;
use rustc_hir::intravisit::{walk_body, walk_expr, walk_inf, walk_ty, Visitor};
use rustc_hir::{Body, Expr, ExprKind, GenericArg, Item, ItemKind, QPath, TyKind};
@ -65,7 +65,7 @@ impl<'tcx> LateLintPass<'tcx> for ImplicitHasher {
fn suggestion(
cx: &LateContext<'_>,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_, ()>,
generics_span: Span,
generics_suggestion_span: Span,
target: &ImplicitHasherType<'_>,

4
src/tools/clippy/clippy_lints/src/manual_clamp.rs
View File

@ -9,7 +9,7 @@ use clippy_utils::{
peel_blocks_with_stmt, MaybePath,
};
use itertools::Itertools;
use rustc_errors::{Applicability, Diagnostic};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_hir::def::Res;
use rustc_hir::{Arm, BinOpKind, Block, Expr, ExprKind, HirId, PatKind, PathSegment, PrimTy, QPath, StmtKind};
use rustc_lint::{LateContext, LateLintPass};
@ -163,7 +163,7 @@ fn emit_suggestion<'tcx>(cx: &LateContext<'tcx>, suggestion: &ClampSuggestion<'t
};
let suggestion = format!("{assignment}{input}.clamp({min}, {max}){semicolon}");
let msg = "clamp-like pattern without using clamp function";
let lint_builder = |d: &mut Diagnostic| {
let lint_builder = |d: &mut DiagnosticBuilder<'_, ()>| {
d.span_suggestion(*span, "replace with clamp", suggestion, Applicability::MaybeIncorrect);
if *is_float {
d.note("clamp will panic if max < min, min.is_nan(), or max.is_nan()")

4
src/tools/clippy/clippy_lints/src/matches/significant_drop_in_scrutinee.rs
View File

@ -2,7 +2,7 @@ use crate::FxHashSet;
use clippy_utils::diagnostics::span_lint_and_then;
use clippy_utils::source::{indent_of, snippet};
use clippy_utils::{get_attr, is_lint_allowed};
use rustc_errors::{Applicability, Diagnostic};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_hir::intravisit::{walk_expr, Visitor};
use rustc_hir::{Arm, Expr, ExprKind, MatchSource};
use rustc_lint::{LateContext, LintContext};
@ -37,7 +37,7 @@ pub(super) fn check<'tcx>(
}
}
fn set_diagnostic<'tcx>(diag: &mut Diagnostic, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>, found: FoundSigDrop) {
fn set_diagnostic<'tcx>(diag: &mut DiagnosticBuilder<'_, ()>, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>, found: FoundSigDrop) {
if found.lint_suggestion == LintSuggestion::MoveAndClone {
// If our suggestion is to move and clone, then we want to leave it to the user to
// decide how to address this lint, since it may be that cloning is inappropriate.

4
src/tools/clippy/clippy_lints/src/methods/suspicious_command_arg_space.rs
View File

@ -1,6 +1,6 @@
use clippy_utils::diagnostics::span_lint_and_then;
use clippy_utils::ty::is_type_diagnostic_item;
use rustc_errors::{Applicability, Diagnostic};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_lint::LateContext;
use rustc_span::{sym, Span};
use {rustc_ast as ast, rustc_hir as hir};
@ -22,7 +22,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, recv: &'tcx hir::Expr<'_>, arg
SUSPICIOUS_COMMAND_ARG_SPACE,
arg.span,
"single argument that looks like it should be multiple arguments",
|diag: &mut Diagnostic| {
|diag: &mut DiagnosticBuilder<'_, ()>| {
diag.multipart_suggestion_verbose(
"consider splitting the argument",
vec![(span, "args".to_string()), (arg.span, format!("[{arg1:?}, {arg2:?}]"))],

4
src/tools/clippy/clippy_lints/src/missing_asserts_for_indexing.rs
View File

@ -9,7 +9,7 @@ use clippy_utils::{eq_expr_value, hash_expr, higher};
use rustc_ast::{LitKind, RangeLimits};
use rustc_data_structures::packed::Pu128;
use rustc_data_structures::unhash::UnhashMap;
use rustc_errors::{Applicability, Diagnostic};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_hir::{BinOp, Block, Body, Expr, ExprKind, UnOp};
use rustc_lint::{LateContext, LateLintPass};
use rustc_session::declare_lint_pass;
@ -67,7 +67,7 @@ declare_lint_pass!(MissingAssertsForIndexing => [MISSING_ASSERTS_FOR_INDEXING]);
fn report_lint<F>(cx: &LateContext<'_>, full_span: Span, msg: &str, indexes: &[Span], f: F)
where
F: FnOnce(&mut Diagnostic),
F: FnOnce(&mut DiagnosticBuilder<'_, ()>),
{
span_lint_and_then(cx, MISSING_ASSERTS_FOR_INDEXING, full_span, msg, |diag| {
f(diag);

4
src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
View File

@ -6,7 +6,7 @@ use clippy_utils::ty::{
implements_trait, implements_trait_with_env_from_iter, is_copy, is_type_diagnostic_item, is_type_lang_item,
};
use rustc_ast::ast::Attribute;
use rustc_errors::{Applicability, Diagnostic};
use rustc_errors::{Applicability, DiagnosticBuilder};
use rustc_hir::intravisit::FnKind;
use rustc_hir::{
BindingAnnotation, Body, FnDecl, GenericArg, HirId, HirIdSet, Impl, ItemKind, LangItem, Mutability, Node, PatKind,
@ -196,7 +196,7 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
&& !moved_vars.contains(&canonical_id)
{
// Dereference suggestion
let sugg = |diag: &mut Diagnostic| {
let sugg = |diag: &mut DiagnosticBuilder<'_, ()>| {
if let ty::Adt(def, ..) = ty.kind() {
if let Some(span) = cx.tcx.hir().span_if_local(def.did()) {
if type_allowed_to_implement_copy(

12
src/tools/clippy/clippy_utils/src/diagnostics.rs
View File

@ -8,13 +8,13 @@
//! Thank you!
//! ~The `INTERNAL_METADATA_COLLECTOR` lint
use rustc_errors::{Applicability, Diagnostic, MultiSpan};
use rustc_errors::{Applicability, DiagnosticBuilder, MultiSpan};
use rustc_hir::HirId;
use rustc_lint::{LateContext, Lint, LintContext};
use rustc_span::Span;
use std::env;
fn docs_link(diag: &mut Diagnostic, lint: &'static Lint) {
fn docs_link(diag: &mut DiagnosticBuilder<'_, ()>, lint: &'static Lint) {
if env::var("CLIPPY_DISABLE_DOCS_LINKS").is_err() {
if let Some(lint) = lint.name_lower().strip_prefix("clippy::") {
diag.help(format!(
@ -143,7 +143,7 @@ pub fn span_lint_and_then<C, S, F>(cx: &C, lint: &'static Lint, sp: S, msg: &str
where
C: LintContext,
S: Into<MultiSpan>,
F: FnOnce(&mut Diagnostic),
F: FnOnce(&mut DiagnosticBuilder<'_, ()>),
{
#[expect(clippy::disallowed_methods)]
cx.span_lint(lint, sp, msg.to_string(), |diag| {
@ -165,7 +165,7 @@ pub fn span_lint_hir_and_then(
hir_id: HirId,
sp: impl Into<MultiSpan>,
msg: &str,
f: impl FnOnce(&mut Diagnostic),
f: impl FnOnce(&mut DiagnosticBuilder<'_, ()>),
) {
#[expect(clippy::disallowed_methods)]
cx.tcx.node_span_lint(lint, hir_id, sp, msg.to_string(), |diag| {
@ -214,7 +214,7 @@ pub fn span_lint_and_sugg<T: LintContext>(
/// appear once per
/// replacement. In human-readable format though, it only appears once before
/// the whole suggestion.
pub fn multispan_sugg<I>(diag: &mut Diagnostic, help_msg: &str, sugg: I)
pub fn multispan_sugg<I>(diag: &mut DiagnosticBuilder<'_, ()>, help_msg: &str, sugg: I)
where
I: IntoIterator<Item = (Span, String)>,
{
@ -227,7 +227,7 @@ where
/// multiple spans. This is tracked in issue [rustfix#141](https://github.com/rust-lang/rustfix/issues/141).
/// Suggestions with multiple spans will be silently ignored.
pub fn multispan_sugg_with_applicability<I>(
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_, ()>,
help_msg: &str,
applicability: Applicability,
sugg: I,

4
src/tools/clippy/clippy_utils/src/sugg.rs
View File

@ -683,7 +683,7 @@ fn indentation<T: LintContext>(cx: &T, span: Span) -> Option<String> {
})
}
/// Convenience extension trait for `Diagnostic`.
/// Convenience extension trait for `DiagnosticBuilder`.
pub trait DiagnosticExt<T: LintContext> {
/// Suggests to add an attribute to an item.
///
@ -731,7 +731,7 @@ pub trait DiagnosticExt<T: LintContext> {
fn suggest_remove_item(&mut self, cx: &T, item: Span, msg: &str, applicability: Applicability);
}
impl<T: LintContext> DiagnosticExt<T> for rustc_errors::Diagnostic {
impl<T: LintContext> DiagnosticExt<T> for rustc_errors::DiagnosticBuilder<'_, ()> {
fn suggest_item_with_attr<D: Display + ?Sized>(
&mut self,
cx: &T,

13
tests/ui-fulldeps/internal-lints/diagnostics.rs
View File

@ -55,8 +55,11 @@ impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for TranslatableInIntoDiagn
pub struct UntranslatableInAddToDiagnostic;
impl AddToDiagnostic for UntranslatableInAddToDiagnostic {
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: F,
) {
diag.note("untranslatable diagnostic");
//~^ ERROR diagnostics should be created using translatable messages
}
@ -65,7 +68,11 @@ impl AddToDiagnostic for UntranslatableInAddToDiagnostic {
pub struct TranslatableInAddToDiagnostic;
impl AddToDiagnostic for TranslatableInAddToDiagnostic {
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: F,
) {
diag.note(crate::fluent_generated::no_crate_note);
}
}

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