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Rollup merge of #121085 - davidtwco:always-eager-diagnostics, r=nnethercote

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errors: only eagerly translate subdiagnostics

Subdiagnostics don't need to be lazily translated, they can always be eagerly translated. Eager translation is slightly more complex as we need to have a `DiagCtxt` available to perform the translation, which involves slightly more threading of that context.

This slight increase in complexity should enable later simplifications - like passing `DiagCtxt` into `AddToDiagnostic` and moving Fluent messages into the diagnostic structs rather than having them in separate files (working on that was what led to this change).

r? ```@nnethercote```
This commit is contained in:
Matthias Krüger 2024-02-17 18:47:40 +01:00 committed by GitHub
commit 45d5773704
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GPG Key ID: B5690EEEBB952194
43 changed files with 532 additions and 388 deletions
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89
compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
View File

@ -229,7 +229,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
seen_spans.insert(move_span);
}
use_spans.var_path_only_subdiag(&mut err, desired_action);
use_spans.var_path_only_subdiag(self.dcx(), &mut err, desired_action);
if !is_loop_move {
err.span_label(
@ -291,18 +291,24 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
if needs_note {
if let Some(local) = place.as_local() {
let span = self.body.local_decls[local].source_info.span;
err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Label {
is_partial_move,
ty,
place: &note_msg,
span,
});
err.subdiagnostic(
self.dcx(),
crate::session_diagnostics::TypeNoCopy::Label {
is_partial_move,
ty,
place: &note_msg,
span,
},
);
} else {
err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Note {
is_partial_move,
ty,
place: &note_msg,
});
err.subdiagnostic(
self.dcx(),
crate::session_diagnostics::TypeNoCopy::Note {
is_partial_move,
ty,
place: &note_msg,
},
);
};
}
@ -557,7 +563,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
E0381,
"{used} binding {desc}{isnt_initialized}"
);
use_spans.var_path_only_subdiag(&mut err, desired_action);
use_spans.var_path_only_subdiag(self.dcx(), &mut err, desired_action);
if let InitializationRequiringAction::PartialAssignment
| InitializationRequiringAction::Assignment = desired_action
@ -848,9 +854,13 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
&value_msg,
);
borrow_spans.var_path_only_subdiag(&mut err, crate::InitializationRequiringAction::Borrow);
borrow_spans.var_path_only_subdiag(
self.dcx(),
&mut err,
crate::InitializationRequiringAction::Borrow,
);
move_spans.var_subdiag(None, &mut err, None, |kind, var_span| {
move_spans.var_subdiag(self.dcx(), &mut err, None, |kind, var_span| {
use crate::session_diagnostics::CaptureVarCause::*;
match kind {
hir::ClosureKind::Coroutine(_) => MoveUseInCoroutine { var_span },
@ -895,7 +905,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
borrow_span,
&self.describe_any_place(borrow.borrowed_place.as_ref()),
);
borrow_spans.var_subdiag(None, &mut err, Some(borrow.kind), |kind, var_span| {
borrow_spans.var_subdiag(self.dcx(), &mut err, Some(borrow.kind), |kind, var_span| {
use crate::session_diagnostics::CaptureVarCause::*;
let place = &borrow.borrowed_place;
let desc_place = self.describe_any_place(place.as_ref());
@ -1043,7 +1053,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
"mutably borrow",
);
borrow_spans.var_subdiag(
None,
self.dcx(),
&mut err,
Some(BorrowKind::Mut { kind: MutBorrowKind::ClosureCapture }),
|kind, var_span| {
@ -1131,22 +1141,31 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
};
if issued_spans == borrow_spans {
borrow_spans.var_subdiag(None, &mut err, Some(gen_borrow_kind), |kind, var_span| {
use crate::session_diagnostics::CaptureVarCause::*;
match kind {
hir::ClosureKind::Coroutine(_) => BorrowUsePlaceCoroutine {
place: desc_place,
var_span,
is_single_var: false,
},
hir::ClosureKind::Closure | hir::ClosureKind::CoroutineClosure(_) => {
BorrowUsePlaceClosure { place: desc_place, var_span, is_single_var: false }
borrow_spans.var_subdiag(
self.dcx(),
&mut err,
Some(gen_borrow_kind),
|kind, var_span| {
use crate::session_diagnostics::CaptureVarCause::*;
match kind {
hir::ClosureKind::Coroutine(_) => BorrowUsePlaceCoroutine {
place: desc_place,
var_span,
is_single_var: false,
},
hir::ClosureKind::Closure | hir::ClosureKind::CoroutineClosure(_) => {
BorrowUsePlaceClosure {
place: desc_place,
var_span,
is_single_var: false,
}
}
}
}
});
},
);
} else {
issued_spans.var_subdiag(
Some(self.dcx()),
self.dcx(),
&mut err,
Some(issued_borrow.kind),
|kind, var_span| {
@ -1165,7 +1184,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
);
borrow_spans.var_subdiag(
Some(self.dcx()),
self.dcx(),
&mut err,
Some(gen_borrow_kind),
|kind, var_span| {
@ -2217,7 +2236,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
err.span_label(borrow_span, "borrowed value does not live long enough");
err.span_label(drop_span, format!("`{name}` dropped here while still borrowed"));
borrow_spans.args_subdiag(&mut err, |args_span| {
borrow_spans.args_subdiag(self.dcx(), &mut err, |args_span| {
crate::session_diagnostics::CaptureArgLabel::Capture {
is_within: borrow_spans.for_coroutine(),
args_span,
@ -2476,7 +2495,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
None,
);
borrow_spans.args_subdiag(&mut err, |args_span| {
borrow_spans.args_subdiag(self.dcx(), &mut err, |args_span| {
crate::session_diagnostics::CaptureArgLabel::Capture {
is_within: borrow_spans.for_coroutine(),
args_span,
@ -2935,7 +2954,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
"assign",
);
loan_spans.var_subdiag(None, &mut err, Some(loan.kind), |kind, var_span| {
loan_spans.var_subdiag(self.dcx(), &mut err, Some(loan.kind), |kind, var_span| {
use crate::session_diagnostics::CaptureVarCause::*;
match kind {
hir::ClosureKind::Coroutine(_) => BorrowUseInCoroutine { var_span },
@ -2953,7 +2972,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
let mut err = self.cannot_assign_to_borrowed(span, loan_span, &descr_place);
loan_spans.var_subdiag(None, &mut err, Some(loan.kind), |kind, var_span| {
loan_spans.var_subdiag(self.dcx(), &mut err, Some(loan.kind), |kind, var_span| {
use crate::session_diagnostics::CaptureVarCause::*;
match kind {
hir::ClosureKind::Coroutine(_) => BorrowUseInCoroutine { var_span },

202
compiler/rustc_borrowck/src/diagnostics/mod.rs
View File

@ -124,7 +124,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
if let ty::Closure(did, _) = self.body.local_decls[closure].ty.kind() {
let did = did.expect_local();
if let Some((span, hir_place)) = self.infcx.tcx.closure_kind_origin(did) {
diag.eager_subdiagnostic(
diag.subdiagnostic(
self.dcx(),
OnClosureNote::InvokedTwice {
place_name: &ty::place_to_string_for_capture(
@ -146,7 +146,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
if let ty::Closure(did, _) = self.body.local_decls[target].ty.kind() {
let did = did.expect_local();
if let Some((span, hir_place)) = self.infcx.tcx.closure_kind_origin(did) {
diag.eager_subdiagnostic(
diag.subdiagnostic(
self.dcx(),
OnClosureNote::MovedTwice {
place_name: &ty::place_to_string_for_capture(self.infcx.tcx, hir_place),
@ -587,11 +587,12 @@ impl UseSpans<'_> {
/// Add a span label to the arguments of the closure, if it exists.
pub(super) fn args_subdiag(
self,
dcx: &rustc_errors::DiagCtxt,
err: &mut Diagnostic,
f: impl FnOnce(Span) -> CaptureArgLabel,
) {
if let UseSpans::ClosureUse { args_span, .. } = self {
err.subdiagnostic(f(args_span));
err.subdiagnostic(dcx, f(args_span));
}
}
@ -599,6 +600,7 @@ impl UseSpans<'_> {
/// only adds label to the `path_span`
pub(super) fn var_path_only_subdiag(
self,
dcx: &rustc_errors::DiagCtxt,
err: &mut Diagnostic,
action: crate::InitializationRequiringAction,
) {
@ -607,20 +609,26 @@ impl UseSpans<'_> {
if let UseSpans::ClosureUse { closure_kind, path_span, .. } = self {
match closure_kind {
hir::ClosureKind::Coroutine(_) => {
err.subdiagnostic(match action {
Borrow => BorrowInCoroutine { path_span },
MatchOn | Use => UseInCoroutine { path_span },
Assignment => AssignInCoroutine { path_span },
PartialAssignment => AssignPartInCoroutine { path_span },
});
err.subdiagnostic(
dcx,
match action {
Borrow => BorrowInCoroutine { path_span },
MatchOn | Use => UseInCoroutine { path_span },
Assignment => AssignInCoroutine { path_span },
PartialAssignment => AssignPartInCoroutine { path_span },
},
);
}
hir::ClosureKind::Closure | hir::ClosureKind::CoroutineClosure(_) => {
err.subdiagnostic(match action {
Borrow => BorrowInClosure { path_span },
MatchOn | Use => UseInClosure { path_span },
Assignment => AssignInClosure { path_span },
PartialAssignment => AssignPartInClosure { path_span },
});
err.subdiagnostic(
dcx,
match action {
Borrow => BorrowInClosure { path_span },
MatchOn | Use => UseInClosure { path_span },
Assignment => AssignInClosure { path_span },
PartialAssignment => AssignPartInClosure { path_span },
},
);
}
}
}
@ -629,32 +637,32 @@ impl UseSpans<'_> {
/// Add a subdiagnostic to the use of the captured variable, if it exists.
pub(super) fn var_subdiag(
self,
dcx: Option<&rustc_errors::DiagCtxt>,
dcx: &rustc_errors::DiagCtxt,
err: &mut Diagnostic,
kind: Option<rustc_middle::mir::BorrowKind>,
f: impl FnOnce(hir::ClosureKind, Span) -> CaptureVarCause,
) {
if let UseSpans::ClosureUse { closure_kind, capture_kind_span, path_span, .. } = self {
if capture_kind_span != path_span {
err.subdiagnostic(match kind {
Some(kd) => match kd {
rustc_middle::mir::BorrowKind::Shared
| rustc_middle::mir::BorrowKind::Fake => {
CaptureVarKind::Immut { kind_span: capture_kind_span }
}
err.subdiagnostic(
dcx,
match kind {
Some(kd) => match kd {
rustc_middle::mir::BorrowKind::Shared
| rustc_middle::mir::BorrowKind::Fake => {
CaptureVarKind::Immut { kind_span: capture_kind_span }
}
rustc_middle::mir::BorrowKind::Mut { .. } => {
CaptureVarKind::Mut { kind_span: capture_kind_span }
}
rustc_middle::mir::BorrowKind::Mut { .. } => {
CaptureVarKind::Mut { kind_span: capture_kind_span }
}
},
None => CaptureVarKind::Move { kind_span: capture_kind_span },
},
None => CaptureVarKind::Move { kind_span: capture_kind_span },
});
);
};
let diag = f(closure_kind, path_span);
match dcx {
Some(hd) => err.eager_subdiagnostic(hd, diag),
None => err.subdiagnostic(diag),
};
err.subdiagnostic(dcx, diag);
}
}
@ -1025,26 +1033,33 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
CallKind::FnCall { fn_trait_id, .. }
if Some(fn_trait_id) == self.infcx.tcx.lang_items().fn_once_trait() =>
{
err.subdiagnostic(CaptureReasonLabel::Call {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
});
err.subdiagnostic(CaptureReasonNote::FnOnceMoveInCall { var_span });
err.subdiagnostic(
self.dcx(),
CaptureReasonLabel::Call {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
},
);
err.subdiagnostic(self.dcx(), CaptureReasonNote::FnOnceMoveInCall { var_span });
}
CallKind::Operator { self_arg, .. } => {
let self_arg = self_arg.unwrap();
err.subdiagnostic(CaptureReasonLabel::OperatorUse {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
});
err.subdiagnostic(
self.dcx(),
CaptureReasonLabel::OperatorUse {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
},
);
if self.fn_self_span_reported.insert(fn_span) {
err.subdiagnostic(CaptureReasonNote::LhsMoveByOperator {
span: self_arg.span,
});
err.subdiagnostic(
self.dcx(),
CaptureReasonNote::LhsMoveByOperator { span: self_arg.span },
);
}
}
CallKind::Normal { self_arg, desugaring, method_did, method_args } => {
@ -1061,11 +1076,14 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
);
let func = tcx.def_path_str(method_did);
err.subdiagnostic(CaptureReasonNote::FuncTakeSelf {
func,
place_name: place_name.clone(),
span: self_arg.span,
});
err.subdiagnostic(
self.dcx(),
CaptureReasonNote::FuncTakeSelf {
func,
place_name: place_name.clone(),
span: self_arg.span,
},
);
}
let parent_did = tcx.parent(method_did);
let parent_self_ty =
@ -1079,7 +1097,10 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
matches!(tcx.get_diagnostic_name(def_id), Some(sym::Option | sym::Result))
});
if is_option_or_result && maybe_reinitialized_locations_is_empty {
err.subdiagnostic(CaptureReasonLabel::BorrowContent { var_span });
err.subdiagnostic(
self.dcx(),
CaptureReasonLabel::BorrowContent { var_span },
);
}
if let Some((CallDesugaringKind::ForLoopIntoIter, _)) = desugaring {
let ty = moved_place.ty(self.body, tcx).ty;
@ -1093,18 +1114,24 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
_ => false,
};
if suggest {
err.subdiagnostic(CaptureReasonSuggest::IterateSlice {
ty,
span: move_span.shrink_to_lo(),
});
err.subdiagnostic(
self.dcx(),
CaptureReasonSuggest::IterateSlice {
ty,
span: move_span.shrink_to_lo(),
},
);
}
err.subdiagnostic(CaptureReasonLabel::ImplicitCall {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
});
err.subdiagnostic(
self.dcx(),
CaptureReasonLabel::ImplicitCall {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
},
);
// If the moved place was a `&mut` ref, then we can
// suggest to reborrow it where it was moved, so it
// will still be valid by the time we get to the usage.
@ -1128,19 +1155,25 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
}
} else {
if let Some((CallDesugaringKind::Await, _)) = desugaring {
err.subdiagnostic(CaptureReasonLabel::Await {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
});
err.subdiagnostic(
self.dcx(),
CaptureReasonLabel::Await {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
},
);
} else {
err.subdiagnostic(CaptureReasonLabel::MethodCall {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
});
err.subdiagnostic(
self.dcx(),
CaptureReasonLabel::MethodCall {
fn_call_span,
place_name: &place_name,
is_partial,
is_loop_message,
},
);
}
// Erase and shadow everything that could be passed to the new infcx.
let ty = moved_place.ty(self.body, tcx).ty;
@ -1155,7 +1188,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
)
&& self.infcx.can_eq(self.param_env, ty, self_ty)
{
err.eager_subdiagnostic(
err.subdiagnostic(
self.dcx(),
CaptureReasonSuggest::FreshReborrow {
span: move_span.shrink_to_hi(),
@ -1239,17 +1272,20 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
}
} else {
if move_span != span || is_loop_message {
err.subdiagnostic(CaptureReasonLabel::MovedHere {
move_span,
is_partial,
is_move_msg,
is_loop_message,
});
err.subdiagnostic(
self.dcx(),
CaptureReasonLabel::MovedHere {
move_span,
is_partial,
is_move_msg,
is_loop_message,
},
);
}
// If the move error occurs due to a loop, don't show
// another message for the same span
if !is_loop_message {
move_spans.var_subdiag(None, err, None, |kind, var_span| match kind {
move_spans.var_subdiag(self.dcx(), err, None, |kind, var_span| match kind {
hir::ClosureKind::Coroutine(_) => {
CaptureVarCause::PartialMoveUseInCoroutine { var_span, is_partial }
}

47
compiler/rustc_borrowck/src/diagnostics/move_errors.rs
View File

@ -448,12 +448,15 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
None => "value".to_string(),
};
err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Label {
is_partial_move: false,
ty: place_ty,
place: &place_desc,
span,
});
err.subdiagnostic(
self.dcx(),
crate::session_diagnostics::TypeNoCopy::Label {
is_partial_move: false,
ty: place_ty,
place: &place_desc,
span,
},
);
} else {
binds_to.sort();
binds_to.dedup();
@ -475,14 +478,17 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
Some(desc) => format!("`{desc}`"),
None => "value".to_string(),
};
err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Label {
is_partial_move: false,
ty: place_ty,
place: &place_desc,
span,
});
err.subdiagnostic(
self.dcx(),
crate::session_diagnostics::TypeNoCopy::Label {
is_partial_move: false,
ty: place_ty,
place: &place_desc,
span,
},
);
use_spans.args_subdiag(err, |args_span| {
use_spans.args_subdiag(self.dcx(), err, |args_span| {
crate::session_diagnostics::CaptureArgLabel::MoveOutPlace {
place: place_desc,
args_span,
@ -580,12 +586,15 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
if binds_to.len() == 1 {
let place_desc = &format!("`{}`", self.local_names[*local].unwrap());
err.subdiagnostic(crate::session_diagnostics::TypeNoCopy::Label {
is_partial_move: false,
ty: bind_to.ty,
place: place_desc,
span: binding_span,
});
err.subdiagnostic(
self.dcx(),
crate::session_diagnostics::TypeNoCopy::Label {
is_partial_move: false,
ty: bind_to.ty,
place: place_desc,
span: binding_span,
},
);
}
}

2
compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs
View File

@ -229,7 +229,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
}
if suggest {
borrow_spans.var_subdiag(
None,
self.dcx(),
&mut err,
Some(mir::BorrowKind::Mut { kind: mir::MutBorrowKind::Default }),
|_kind, var_span| {

10
compiler/rustc_borrowck/src/diagnostics/region_errors.rs
View File

@ -616,13 +616,13 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
let upvars_map = self.infcx.tcx.upvars_mentioned(def_id).unwrap();
let upvar_def_span = self.infcx.tcx.hir().span(def_hir);
let upvar_span = upvars_map.get(&def_hir).unwrap().span;
diag.subdiagnostic(VarHereDenote::Defined { span: upvar_def_span });
diag.subdiagnostic(VarHereDenote::Captured { span: upvar_span });
diag.subdiagnostic(self.dcx(), VarHereDenote::Defined { span: upvar_def_span });
diag.subdiagnostic(self.dcx(), VarHereDenote::Captured { span: upvar_span });
}
}
if let Some(fr_span) = self.give_region_a_name(*outlived_fr).unwrap().span() {
diag.subdiagnostic(VarHereDenote::FnMutInferred { span: fr_span });
diag.subdiagnostic(self.dcx(), VarHereDenote::FnMutInferred { span: fr_span });
}
self.suggest_move_on_borrowing_closure(&mut diag);
@ -788,7 +788,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
},
};
diag.subdiagnostic(err_category);
diag.subdiagnostic(self.dcx(), err_category);
self.add_static_impl_trait_suggestion(&mut diag, *fr, fr_name, *outlived_fr);
self.suggest_adding_lifetime_params(&mut diag, *fr, *outlived_fr);
@ -979,7 +979,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
ident.span,
"calling this method introduces the `impl`'s `'static` requirement",
);
err.subdiagnostic(RequireStaticErr::UsedImpl { multi_span });
err.subdiagnostic(self.dcx(), RequireStaticErr::UsedImpl { multi_span });
err.span_suggestion_verbose(
span.shrink_to_hi(),
"consider relaxing the implicit `'static` requirement",

2
compiler/rustc_codegen_gcc/src/errors.rs
View File

@ -122,7 +122,7 @@ impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for TargetFeatureDisableOrEnabl
diag.span(span);
};
if let Some(missing_features) = self.missing_features {
diag.subdiagnostic(missing_features);
diag.subdiagnostic(dcx, missing_features);
}
diag.arg("features", self.features.join(", "));
diag

2
compiler/rustc_codegen_llvm/src/errors.rs
View File

@ -131,7 +131,7 @@ impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for TargetFeatureDisableOrEnabl
diag.span(span);
};
if let Some(missing_features) = self.missing_features {
diag.subdiagnostic(missing_features);
diag.subdiagnostic(dcx, missing_features);
}
diag.arg("features", self.features.join(", "));
diag

2
compiler/rustc_const_eval/src/transform/check_consts/ops.rs
View File

@ -131,7 +131,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> {
// FIXME(effects) revisit this
if !tcx.is_const_trait_impl_raw(data.impl_def_id) {
let span = tcx.def_span(data.impl_def_id);
err.subdiagnostic(errors::NonConstImplNote { span });
err.subdiagnostic(tcx.dcx(), errors::NonConstImplNote { span });
}
}
}

36
compiler/rustc_error_messages/src/lib.rs
View File

@ -263,14 +263,10 @@ pub enum SubdiagnosticMessage {
/// Translatable message which has already been translated eagerly.
///
/// Some diagnostics have repeated subdiagnostics where the same interpolated variables would
/// be instantiated multiple times with different values. As translation normally happens
/// immediately prior to emission, after the diagnostic and subdiagnostic derive logic has run,
/// the setting of diagnostic arguments in the derived code will overwrite previous variable
/// values and only the final value will be set when translation occurs - resulting in
/// incorrect diagnostics. Eager translation results in translation for a subdiagnostic
/// happening immediately after the subdiagnostic derive's logic has been run. This variant
/// stores messages which have been translated eagerly.
Eager(Cow<'static, str>),
/// be instantiated multiple times with different values. These subdiagnostics' messages
/// are translated when they are added to the parent diagnostic, producing this variant of
/// `DiagnosticMessage`.
Translated(Cow<'static, str>),
/// Identifier of a Fluent message. Instances of this variant are generated by the
/// `Subdiagnostic` derive.
FluentIdentifier(FluentId),
@ -307,19 +303,15 @@ impl From<Cow<'static, str>> for SubdiagnosticMessage {
pub enum DiagnosticMessage {
/// Non-translatable diagnostic message.
Str(Cow<'static, str>),
/// Translatable message which has already been translated eagerly.
/// Translatable message which has been already translated.
///
/// Some diagnostics have repeated subdiagnostics where the same interpolated variables would
/// be instantiated multiple times with different values. As translation normally happens
/// immediately prior to emission, after the diagnostic and subdiagnostic derive logic has run,
/// the setting of diagnostic arguments in the derived code will overwrite previous variable
/// values and only the final value will be set when translation occurs - resulting in
/// incorrect diagnostics. Eager translation results in translation for a subdiagnostic
/// happening immediately after the subdiagnostic derive's logic has been run. This variant
/// stores messages which have been translated eagerly.
Eager(Cow<'static, str>),
/// be instantiated multiple times with different values. These subdiagnostics' messages
/// are translated when they are added to the parent diagnostic, producing this variant of
/// `DiagnosticMessage`.
Translated(Cow<'static, str>),
/// Identifier for a Fluent message (with optional attribute) corresponding to the diagnostic
/// message.
/// message. Yet to be translated.
///
/// <https://projectfluent.org/fluent/guide/hello.html>
/// <https://projectfluent.org/fluent/guide/attributes.html>
@ -336,7 +328,7 @@ impl DiagnosticMessage {
pub fn with_subdiagnostic_message(&self, sub: SubdiagnosticMessage) -> Self {
let attr = match sub {
SubdiagnosticMessage::Str(s) => return DiagnosticMessage::Str(s),
SubdiagnosticMessage::Eager(s) => return DiagnosticMessage::Eager(s),
SubdiagnosticMessage::Translated(s) => return DiagnosticMessage::Translated(s),
SubdiagnosticMessage::FluentIdentifier(id) => {
return DiagnosticMessage::FluentIdentifier(id, None);
}
@ -345,7 +337,7 @@ impl DiagnosticMessage {
match self {
DiagnosticMessage::Str(s) => DiagnosticMessage::Str(s.clone()),
DiagnosticMessage::Eager(s) => DiagnosticMessage::Eager(s.clone()),
DiagnosticMessage::Translated(s) => DiagnosticMessage::Translated(s.clone()),
DiagnosticMessage::FluentIdentifier(id, _) => {
DiagnosticMessage::FluentIdentifier(id.clone(), Some(attr))
}
@ -354,7 +346,7 @@ impl DiagnosticMessage {
pub fn as_str(&self) -> Option<&str> {
match self {
DiagnosticMessage::Eager(s) | DiagnosticMessage::Str(s) => Some(s),
DiagnosticMessage::Translated(s) | DiagnosticMessage::Str(s) => Some(s),
DiagnosticMessage::FluentIdentifier(_, _) => None,
}
}
@ -396,7 +388,7 @@ impl Into<SubdiagnosticMessage> for DiagnosticMessage {
fn into(self) -> SubdiagnosticMessage {
match self {
DiagnosticMessage::Str(s) => SubdiagnosticMessage::Str(s),
DiagnosticMessage::Eager(s) => SubdiagnosticMessage::Eager(s),
DiagnosticMessage::Translated(s) => SubdiagnosticMessage::Translated(s),
DiagnosticMessage::FluentIdentifier(id, None) => {
SubdiagnosticMessage::FluentIdentifier(id)
}

11
compiler/rustc_errors/src/diagnostic.rs
View File

@ -851,18 +851,11 @@ impl Diagnostic {
self
}
/// Add a subdiagnostic from a type that implements `Subdiagnostic` (see
/// [rustc_macros::Subdiagnostic]).
pub fn subdiagnostic(&mut self, subdiagnostic: impl AddToDiagnostic) -> &mut Self {
subdiagnostic.add_to_diagnostic(self);
self
}
/// Add a subdiagnostic from a type that implements `Subdiagnostic` (see
/// [rustc_macros::Subdiagnostic]). Performs eager translation of any translatable messages
/// used in the subdiagnostic, so suitable for use with repeated messages (i.e. re-use of
/// interpolated variables).
pub fn eager_subdiagnostic(
pub fn subdiagnostic(
&mut self,
dcx: &crate::DiagCtxt,
subdiagnostic: impl AddToDiagnostic,
@ -918,7 +911,7 @@ impl Diagnostic {
/// 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
/// passes the user's string along).
fn subdiagnostic_message_to_diagnostic_message(
pub(crate) fn subdiagnostic_message_to_diagnostic_message(
&self,
attr: impl Into<SubdiagnosticMessage>,
) -> DiagnosticMessage {

3
compiler/rustc_errors/src/diagnostic_builder.rs
View File

@ -404,9 +404,6 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> {
name: impl Into<Cow<'static, str>>, arg: impl IntoDiagnosticArg,
));
forward!((subdiagnostic, with_subdiagnostic)(
subdiagnostic: impl crate::AddToDiagnostic,
));
forward!((eager_subdiagnostic, with_eager_subdiagnostic)(
dcx: &DiagCtxt,
subdiagnostic: impl crate::AddToDiagnostic,
));

23
compiler/rustc_errors/src/emitter.rs
View File

@ -10,6 +10,7 @@
use rustc_span::source_map::SourceMap;
use rustc_span::{FileLines, FileName, SourceFile, Span};
use crate::error::TranslateError;
use crate::snippet::{
Annotation, AnnotationColumn, AnnotationType, Line, MultilineAnnotation, Style, StyledString,
};
@ -559,6 +560,18 @@ pub struct SilentEmitter {
pub fatal_note: String,
}
pub fn silent_translate<'a>(
message: &'a DiagnosticMessage,
) -> Result<Cow<'_, str>, TranslateError<'_>> {
match message {
DiagnosticMessage::Str(msg) | DiagnosticMessage::Translated(msg) => Ok(Cow::Borrowed(msg)),
DiagnosticMessage::FluentIdentifier(identifier, _) => {
// Any value works here.
Ok(identifier.clone())
}
}
}
impl Translate for SilentEmitter {
fn fluent_bundle(&self) -> Option<&Lrc<FluentBundle>> {
None
@ -567,6 +580,16 @@ impl Translate for SilentEmitter {
fn fallback_fluent_bundle(&self) -> &FluentBundle {
panic!("silent emitter attempted to translate message")
}
// Override `translate_message` for the silent emitter because eager translation of
// subdiagnostics result in a call to this.
fn translate_message<'a>(
&'a self,
message: &'a DiagnosticMessage,
_: &'a FluentArgs<'_>,
) -> Result<Cow<'_, str>, TranslateError<'_>> {
silent_translate(message)
}
}
impl Emitter for SilentEmitter {

71
compiler/rustc_errors/src/lib.rs
View File

@ -643,7 +643,8 @@ impl DiagCtxt {
message: DiagnosticMessage,
args: impl Iterator<Item = DiagnosticArg<'a>>,
) -> SubdiagnosticMessage {
SubdiagnosticMessage::Eager(Cow::from(self.eagerly_translate_to_string(message, args)))
let inner = self.inner.borrow();
inner.eagerly_translate(message, args)
}
/// Translate `message` eagerly with `args` to `String`.
@ -653,8 +654,7 @@ impl DiagCtxt {
args: impl Iterator<Item = DiagnosticArg<'a>>,
) -> String {
let inner = self.inner.borrow();
let args = crate::translation::to_fluent_args(args);
inner.emitter.translate_message(&message, &args).map_err(Report::new).unwrap().to_string()
inner.eagerly_translate_to_string(message, args)
}
// This is here to not allow mutation of flags;
@ -1464,6 +1464,25 @@ impl DiagCtxtInner {
.or_else(|| self.delayed_bugs.get(0).map(|(_, guar)| guar).copied())
}
/// Translate `message` eagerly with `args` to `SubdiagnosticMessage::Eager`.
pub fn eagerly_translate<'a>(
&self,
message: DiagnosticMessage,
args: impl Iterator<Item = DiagnosticArg<'a>>,
) -> SubdiagnosticMessage {
SubdiagnosticMessage::Translated(Cow::from(self.eagerly_translate_to_string(message, args)))
}
/// Translate `message` eagerly with `args` to `String`.
pub fn eagerly_translate_to_string<'a>(
&self,
message: DiagnosticMessage,
args: impl Iterator<Item = DiagnosticArg<'a>>,
) -> String {
let args = crate::translation::to_fluent_args(args);
self.emitter.translate_message(&message, &args).map_err(Report::new).unwrap().to_string()
}
fn flush_delayed(&mut self) {
if self.delayed_bugs.is_empty() {
return;
@ -1502,15 +1521,22 @@ impl DiagCtxtInner {
}
let mut bug =
if backtrace || self.ice_file.is_none() { bug.decorate() } else { bug.inner };
if backtrace || self.ice_file.is_none() { bug.decorate(self) } else { bug.inner };
// "Undelay" the delayed bugs (into plain `Bug`s).
if bug.level != DelayedBug {
// NOTE(eddyb) not panicking here because we're already producing
// an ICE, and the more information the merrier.
bug.subdiagnostic(InvalidFlushedDelayedDiagnosticLevel {
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)
});
}
bug.level = Bug;
@ -1545,25 +1571,35 @@ impl DelayedDiagnostic {
DelayedDiagnostic { inner: diagnostic, note: backtrace }
}
fn decorate(mut self) -> Diagnostic {
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;
self.inner.subdiagnostic(DelayedAtWithNewline {
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);
}
// Avoid the needless newline when no backtrace has been captured,
// the display impl should just be a single line.
_ => {
let inner = &self.inner;
self.inner.subdiagnostic(DelayedAtWithoutNewline {
let subdiag = DelayedAtWithoutNewline {
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);
}
}
@ -1709,15 +1745,15 @@ impl Level {
}
// FIXME(eddyb) this doesn't belong here AFAICT, should be moved to callsite.
pub fn add_elided_lifetime_in_path_suggestion(
pub fn add_elided_lifetime_in_path_suggestion<E: EmissionGuarantee>(
source_map: &SourceMap,
diag: &mut Diagnostic,
diag: &mut DiagnosticBuilder<'_, E>,
n: usize,
path_span: Span,
incl_angl_brckt: bool,
insertion_span: Span,
) {
diag.subdiagnostic(ExpectedLifetimeParameter { span: path_span, count: n });
diag.subdiagnostic(diag.dcx, ExpectedLifetimeParameter { span: path_span, count: n });
if !source_map.is_span_accessible(insertion_span) {
// Do not try to suggest anything if generated by a proc-macro.
return;
@ -1726,11 +1762,10 @@ pub fn add_elided_lifetime_in_path_suggestion(
let suggestion =
if incl_angl_brckt { format!("<{anon_lts}>") } else { format!("{anon_lts}, ") };
diag.subdiagnostic(IndicateAnonymousLifetime {
span: insertion_span.shrink_to_hi(),
count: n,
suggestion,
});
diag.subdiagnostic(
diag.dcx,
IndicateAnonymousLifetime { span: insertion_span.shrink_to_hi(), count: n, suggestion },
);
}
pub fn report_ambiguity_error<'a, G: EmissionGuarantee>(

4
compiler/rustc_errors/src/translation.rs
View File

@ -2,7 +2,7 @@ use crate::error::{TranslateError, TranslateErrorKind};
use crate::snippet::Style;
use crate::{DiagnosticArg, DiagnosticMessage, FluentBundle};
use rustc_data_structures::sync::Lrc;
use rustc_error_messages::FluentArgs;
pub use rustc_error_messages::FluentArgs;
use std::borrow::Cow;
use std::env;
use std::error::Report;
@ -61,7 +61,7 @@ pub trait Translate {
) -> Result<Cow<'_, str>, TranslateError<'_>> {
trace!(?message, ?args);
let (identifier, attr) = match message {
DiagnosticMessage::Str(msg) | DiagnosticMessage::Eager(msg) => {
DiagnosticMessage::Str(msg) | DiagnosticMessage::Translated(msg) => {
return Ok(Cow::Borrowed(msg));
}
DiagnosticMessage::FluentIdentifier(identifier, attr) => (identifier, attr),

15
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, Diagnostic, DiagnosticBuilder, DiagnosticMessage};
use rustc_errors::{Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder, DiagnosticMessage};
use rustc_parse::parser::{Parser, Recovery};
use rustc_span::source_map::SourceMap;
use rustc_span::symbol::Ident;
@ -58,7 +58,7 @@ pub(super) fn failed_to_match_macro<'cx>(
err.span_label(cx.source_map().guess_head_span(def_span), "when calling this macro");
}
annotate_doc_comment(&mut err, sess.source_map(), span);
annotate_doc_comment(cx.sess.dcx(), &mut err, sess.source_map(), span);
if let Some(span) = remaining_matcher.span() {
err.span_note(span, format!("while trying to match {remaining_matcher}"));
@ -311,12 +311,17 @@ enum ExplainDocComment {
},
}
pub(super) fn annotate_doc_comment(err: &mut Diagnostic, sm: &SourceMap, span: Span) {
pub(super) fn annotate_doc_comment(
dcx: &DiagCtxt,
err: &mut Diagnostic,
sm: &SourceMap,
span: Span,
) {
if let Ok(src) = sm.span_to_snippet(span) {
if src.starts_with("///") || src.starts_with("/**") {
err.subdiagnostic(ExplainDocComment::Outer { span });
err.subdiagnostic(dcx, ExplainDocComment::Outer { span });
} else if src.starts_with("//!") || src.starts_with("/*!") {
err.subdiagnostic(ExplainDocComment::Inner { span });
err.subdiagnostic(dcx, ExplainDocComment::Inner { span });
}
}
}

2
compiler/rustc_expand/src/mbe/macro_rules.rs
View File

@ -454,7 +454,7 @@ pub fn compile_declarative_macro(
let sp = token.span.substitute_dummy(def.span);
let mut err = sess.dcx().struct_span_err(sp, s);
err.span_label(sp, msg);
annotate_doc_comment(&mut err, sess.source_map(), sp);
annotate_doc_comment(sess.dcx(), &mut err, sess.source_map(), sp);
err.emit();
return dummy_syn_ext();
}

2
compiler/rustc_hir_typeck/src/_match.rs
View File

@ -260,7 +260,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
let semi = expr.span.shrink_to_hi().with_hi(semi_span.hi());
let sugg = crate::errors::RemoveSemiForCoerce { expr: expr.span, ret, semi };
diag.subdiagnostic(sugg);
diag.subdiagnostic(self.dcx(), sugg);
}
/// When the previously checked expression (the scrutinee) diverges,

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

@ -993,19 +993,25 @@ impl<'a, 'tcx> CastCheck<'tcx> {
if let Some((deref_ty, _)) = derefed {
// Give a note about what the expr derefs to.
if deref_ty != self.expr_ty.peel_refs() {
err.subdiagnostic(errors::DerefImplsIsEmpty {
span: self.expr_span,
deref_ty: fcx.ty_to_string(deref_ty),
});
err.subdiagnostic(
fcx.dcx(),
errors::DerefImplsIsEmpty {
span: self.expr_span,
deref_ty: fcx.ty_to_string(deref_ty),
},
);
}
// Create a multipart suggestion: add `!` and `.is_empty()` in
// place of the cast.
err.subdiagnostic(errors::UseIsEmpty {
lo: self.expr_span.shrink_to_lo(),
hi: self.span.with_lo(self.expr_span.hi()),
expr_ty: fcx.ty_to_string(self.expr_ty),
});
err.subdiagnostic(
fcx.dcx(),
errors::UseIsEmpty {
lo: self.expr_span.shrink_to_lo(),
hi: self.span.with_lo(self.expr_span.hi()),
expr_ty: fcx.ty_to_string(self.expr_ty),
},
);
}
}
}

7
compiler/rustc_hir_typeck/src/expr.rs
View File

@ -396,7 +396,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
if let Some(sp) =
tcx.sess.parse_sess.ambiguous_block_expr_parse.borrow().get(&sp)
{
err.subdiagnostic(ExprParenthesesNeeded::surrounding(*sp));
err.subdiagnostic(self.dcx(), ExprParenthesesNeeded::surrounding(*sp));
}
oprnd_t = Ty::new_error(tcx, err.emit());
}
@ -2048,7 +2048,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
.shrink_to_hi()
.to(range_end.span);
err.subdiagnostic(TypeMismatchFruTypo { expr_span: range_start.span, fru_span, expr });
err.subdiagnostic(
self.dcx(),
TypeMismatchFruTypo { expr_span: range_start.span, fru_span, expr },
);
}
}

2
compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
View File

@ -1269,7 +1269,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
{
// The user provided `ptr::null()`, but the function expects
// `ptr::null_mut()`.
err.subdiagnostic(SuggestPtrNullMut { span: arg.span });
err.subdiagnostic(self.dcx(), SuggestPtrNullMut { span: arg.span });
}
}

96
compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs
View File

@ -458,13 +458,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
// but those checks need to be a bit more delicate and the benefit is diminishing.
if self.can_eq(self.param_env, found_ty_inner, peeled) && error_tys_equate_as_ref {
let sugg = prefix_wrap(".as_ref()");
err.subdiagnostic(errors::SuggestConvertViaMethod {
span: expr.span.shrink_to_hi(),
sugg,
expected,
found,
borrow_removal_span,
});
err.subdiagnostic(
self.dcx(),
errors::SuggestConvertViaMethod {
span: expr.span.shrink_to_hi(),
sugg,
expected,
found,
borrow_removal_span,
},
);
return true;
} else if let Some((deref_ty, _)) =
self.autoderef(expr.span, found_ty_inner).silence_errors().nth(1)
@ -472,13 +475,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
&& error_tys_equate_as_ref
{
let sugg = prefix_wrap(".as_deref()");
err.subdiagnostic(errors::SuggestConvertViaMethod {
span: expr.span.shrink_to_hi(),
sugg,
expected,
found,
borrow_removal_span,
});
err.subdiagnostic(
self.dcx(),
errors::SuggestConvertViaMethod {
span: expr.span.shrink_to_hi(),
sugg,
expected,
found,
borrow_removal_span,
},
);
return true;
} else if let ty::Adt(adt, _) = found_ty_inner.peel_refs().kind()
&& Some(adt.did()) == self.tcx.lang_items().string()
@ -565,7 +571,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
end: span.shrink_to_hi(),
},
};
err.subdiagnostic(suggest_boxing);
err.subdiagnostic(self.dcx(), suggest_boxing);
true
} else {
@ -799,29 +805,35 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
match &fn_decl.output {
&hir::FnRetTy::DefaultReturn(span) if expected.is_unit() && !can_suggest => {
// `fn main()` must return `()`, do not suggest changing return type
err.subdiagnostic(errors::ExpectedReturnTypeLabel::Unit { span });
err.subdiagnostic(self.dcx(), errors::ExpectedReturnTypeLabel::Unit { span });
return true;
}
&hir::FnRetTy::DefaultReturn(span) if expected.is_unit() => {
if let Some(found) = found.make_suggestable(self.tcx, false) {
err.subdiagnostic(errors::AddReturnTypeSuggestion::Add {
span,
found: found.to_string(),
});
err.subdiagnostic(
self.dcx(),
errors::AddReturnTypeSuggestion::Add { span, found: found.to_string() },
);
return true;
} else if let ty::Closure(_, args) = found.kind()
// FIXME(compiler-errors): Get better at printing binders...
&& let closure = args.as_closure()
&& closure.sig().is_suggestable(self.tcx, false)
{
err.subdiagnostic(errors::AddReturnTypeSuggestion::Add {
span,
found: closure.print_as_impl_trait().to_string(),
});
err.subdiagnostic(
self.dcx(),
errors::AddReturnTypeSuggestion::Add {
span,
found: closure.print_as_impl_trait().to_string(),
},
);
return true;
} else {
// FIXME: if `found` could be `impl Iterator` we should suggest that.
err.subdiagnostic(errors::AddReturnTypeSuggestion::MissingHere { span });
err.subdiagnostic(
self.dcx(),
errors::AddReturnTypeSuggestion::MissingHere { span },
);
return true;
}
}
@ -843,16 +855,22 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
debug!(?found);
if found.is_suggestable(self.tcx, false) {
if term.span.is_empty() {
err.subdiagnostic(errors::AddReturnTypeSuggestion::Add {
span: term.span,
found: found.to_string(),
});
err.subdiagnostic(
self.dcx(),
errors::AddReturnTypeSuggestion::Add {
span: term.span,
found: found.to_string(),
},
);
return true;
} else {
err.subdiagnostic(errors::ExpectedReturnTypeLabel::Other {
span: term.span,
expected,
});
err.subdiagnostic(
self.dcx(),
errors::ExpectedReturnTypeLabel::Other {
span: term.span,
expected,
},
);
}
}
} else {
@ -867,10 +885,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
let ty = self.normalize(hir_ty.span, ty);
let ty = self.tcx.instantiate_bound_regions_with_erased(ty);
if self.can_coerce(expected, ty) {
err.subdiagnostic(errors::ExpectedReturnTypeLabel::Other {
span: hir_ty.span,
expected,
});
err.subdiagnostic(
self.dcx(),
errors::ExpectedReturnTypeLabel::Other { span: hir_ty.span, expected },
);
self.try_suggest_return_impl_trait(err, expected, ty, fn_id);
return true;
}
@ -1106,7 +1124,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
let sp = self.tcx.sess.source_map().start_point(expr.span).with_parent(None);
if let Some(sp) = self.tcx.sess.parse_sess.ambiguous_block_expr_parse.borrow().get(&sp) {
// `{ 42 } &&x` (#61475) or `{ 42 } && if x { 1 } else { 0 }`
err.subdiagnostic(ExprParenthesesNeeded::surrounding(*sp));
err.subdiagnostic(self.dcx(), ExprParenthesesNeeded::surrounding(*sp));
true
} else {
false
@ -1220,7 +1238,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
} else {
return false;
};
diag.subdiagnostic(subdiag);
diag.subdiagnostic(self.dcx(), subdiag);
return true;
}
}

27
compiler/rustc_hir_typeck/src/method/suggest.rs
View File

@ -3269,19 +3269,22 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
if impls_trait(trait_info.def_id) {
self.suggest_valid_traits(err, vec![trait_info.def_id], false);
} else {
err.subdiagnostic(CandidateTraitNote {
span: self.tcx.def_span(trait_info.def_id),
trait_name: self.tcx.def_path_str(trait_info.def_id),
item_name,
action_or_ty: if trait_missing_method {
"NONE".to_string()
} else {
param_type.map_or_else(
|| "implement".to_string(), // FIXME: it might only need to be imported into scope, not implemented.
ToString::to_string,
)
err.subdiagnostic(
self.dcx(),
CandidateTraitNote {
span: self.tcx.def_span(trait_info.def_id),
trait_name: self.tcx.def_path_str(trait_info.def_id),
item_name,
action_or_ty: if trait_missing_method {
"NONE".to_string()
} else {
param_type.map_or_else(
|| "implement".to_string(), // FIXME: it might only need to be imported into scope, not implemented.
ToString::to_string,
)
},
},
});
);
}
}
trait_infos => {

2
compiler/rustc_hir_typeck/src/op.rs
View File

@ -824,7 +824,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
// If the previous expression was a block expression, suggest parentheses
// (turning this into a binary subtraction operation instead.)
// for example, `{2} - 2` -> `({2}) - 2` (see src\test\ui\parser\expr-as-stmt.rs)
err.subdiagnostic(ExprParenthesesNeeded::surrounding(*sp));
err.subdiagnostic(self.dcx(), ExprParenthesesNeeded::surrounding(*sp));
} else {
match actual.kind() {
Uint(_) if op == hir::UnOp::Neg => {

4
compiler/rustc_infer/src/infer/error_reporting/mod.rs
View File

@ -845,7 +845,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
arm_ty,
arm_span,
) {
err.subdiagnostic(subdiag);
err.subdiagnostic(self.dcx(), subdiag);
}
if let Some(ret_sp) = opt_suggest_box_span {
// Get return type span and point to it.
@ -882,7 +882,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
else_ty,
else_span,
) {
err.subdiagnostic(subdiag);
err.subdiagnostic(self.dcx(), subdiag);
}
// don't suggest wrapping either blocks in `if .. {} else {}`
let is_empty_arm = |id| {

2
compiler/rustc_infer/src/infer/error_reporting/note.rs
View File

@ -342,7 +342,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
trait_predicates: trait_predicates.join(", "),
}
};
err.subdiagnostic(suggestion);
err.subdiagnostic(self.dcx(), suggestion);
}
pub(super) fn report_placeholder_failure(

33
compiler/rustc_infer/src/infer/error_reporting/suggest.rs
View File

@ -84,7 +84,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
start_sp: return_sp.with_hi(return_sp.lo() + BytePos(4)),
end_sp: return_sp.shrink_to_hi(),
};
err.subdiagnostic(sugg);
err.subdiagnostic(self.dcx(), sugg);
let mut starts = Vec::new();
let mut ends = Vec::new();
@ -93,7 +93,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
ends.push(span.shrink_to_hi());
}
let sugg = SuggestBoxingForReturnImplTrait::BoxReturnExpr { starts, ends };
err.subdiagnostic(sugg);
err.subdiagnostic(self.dcx(), sugg);
}
pub(super) fn suggest_tuple_pattern(
@ -138,7 +138,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
span_low: cause.span.shrink_to_lo(),
span_high: cause.span.shrink_to_hi(),
};
diag.subdiagnostic(sugg);
diag.subdiagnostic(self.dcx(), sugg);
}
_ => {
// More than one matching variant.
@ -147,7 +147,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
cause_span: cause.span,
compatible_variants,
};
diag.subdiagnostic(sugg);
diag.subdiagnostic(self.dcx(), sugg);
}
}
}
@ -219,9 +219,10 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
},
(_, Some(ty)) if self.same_type_modulo_infer(exp_found.expected, ty) => {
// FIXME: Seems like we can't have a suggestion and a note with different spans in a single subdiagnostic
diag.subdiagnostic(ConsiderAddingAwait::FutureSugg {
span: exp_span.shrink_to_hi(),
});
diag.subdiagnostic(
self.dcx(),
ConsiderAddingAwait::FutureSugg { span: exp_span.shrink_to_hi() },
);
Some(ConsiderAddingAwait::FutureSuggNote { span: exp_span })
}
(Some(ty), _) if self.same_type_modulo_infer(ty, exp_found.found) => match cause.code()
@ -249,7 +250,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
_ => None,
};
if let Some(subdiag) = subdiag {
diag.subdiagnostic(subdiag);
diag.subdiagnostic(self.dcx(), subdiag);
}
}
@ -285,7 +286,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
} else {
return;
};
diag.subdiagnostic(suggestion);
diag.subdiagnostic(self.dcx(), suggestion);
}
}
}
@ -325,15 +326,15 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
(true, false) => FunctionPointerSuggestion::UseRef { span, fn_name },
(false, true) => FunctionPointerSuggestion::RemoveRef { span, fn_name },
(true, true) => {
diag.subdiagnostic(FnItemsAreDistinct);
diag.subdiagnostic(self.dcx(), FnItemsAreDistinct);
FunctionPointerSuggestion::CastRef { span, fn_name, sig: *sig }
}
(false, false) => {
diag.subdiagnostic(FnItemsAreDistinct);
diag.subdiagnostic(self.dcx(), FnItemsAreDistinct);
FunctionPointerSuggestion::Cast { span, fn_name, sig: *sig }
}
};
diag.subdiagnostic(sugg);
diag.subdiagnostic(self.dcx(), sugg);
}
(ty::FnDef(did1, args1), ty::FnDef(did2, args2)) => {
let expected_sig =
@ -342,7 +343,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
&(self.normalize_fn_sig)(self.tcx.fn_sig(*did2).instantiate(self.tcx, args2));
if self.same_type_modulo_infer(*expected_sig, *found_sig) {
diag.subdiagnostic(FnUniqTypes);
diag.subdiagnostic(self.dcx(), FnUniqTypes);
}
if !self.same_type_modulo_infer(*found_sig, *expected_sig)
@ -371,7 +372,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
};
diag.subdiagnostic(sug);
diag.subdiagnostic(self.dcx(), sug);
}
(ty::FnDef(did, args), ty::FnPtr(sig)) => {
let expected_sig =
@ -390,7 +391,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
format!("{fn_name} as {found_sig}")
};
diag.subdiagnostic(FnConsiderCasting { casting });
diag.subdiagnostic(self.dcx(), FnConsiderCasting { casting });
}
_ => {
return;
@ -822,7 +823,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
let diag = self.consider_returning_binding_diag(blk, expected_ty);
match diag {
Some(diag) => {
err.subdiagnostic(diag);
err.subdiagnostic(self.dcx(), diag);
true
}
None => false,

2
compiler/rustc_lint/src/lints.rs
View File

@ -1757,7 +1757,7 @@ impl<'a> DecorateLint<'a, ()> for UnusedDef<'_, '_> {
diag.note(note.to_string());
}
if let Some(sugg) = self.suggestion {
diag.subdiagnostic(sugg);
diag.subdiagnostic(diag.dcx, sugg);
}
}

39
compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs
View File

@ -331,44 +331,7 @@ impl DiagnosticDeriveVariantBuilder {
}
}
(Meta::Path(_), "subdiagnostic") => {
if FieldInnerTy::from_type(&info.binding.ast().ty).will_iterate() {
let DiagnosticDeriveKind::Diagnostic = self.kind else {
// No eager translation for lints.
return Ok(quote! { diag.subdiagnostic(#binding); });
};
return Ok(quote! { diag.eager_subdiagnostic(dcx, #binding); });
} else {
return Ok(quote! { diag.subdiagnostic(#binding); });
}
}
(Meta::List(meta_list), "subdiagnostic") => {
let err = || {
span_err(
meta_list.span().unwrap(),
"`eager` is the only supported nested attribute for `subdiagnostic`",
)
.emit();
};
let Ok(p): Result<Path, _> = meta_list.parse_args() else {
err();
return Ok(quote! {});
};
if !p.is_ident("eager") {
err();
return Ok(quote! {});
}
match &self.kind {
DiagnosticDeriveKind::Diagnostic => {}
DiagnosticDeriveKind::LintDiagnostic => {
throw_invalid_attr!(attr, |diag| {
diag.help("eager subdiagnostics are not supported on lints")
})
}
};
return Ok(quote! { diag.eager_subdiagnostic(dcx, #binding); });
return Ok(quote! { diag.subdiagnostic(diag.dcx, #binding); });
}
_ => (),
}

2
compiler/rustc_mir_build/src/thir/pattern/check_match.rs
View File

@ -1109,7 +1109,7 @@ fn report_non_exhaustive_match<'p, 'tcx>(
let all_arms_have_guards = arms.iter().all(|arm_id| thir[*arm_id].guard.is_some());
if !is_empty_match && all_arms_have_guards {
err.subdiagnostic(NonExhaustiveMatchAllArmsGuarded);
err.subdiagnostic(cx.tcx.dcx(), NonExhaustiveMatchAllArmsGuarded);
}
if let Some((span, sugg)) = suggestion {
err.span_suggestion_verbose(span, msg, sugg, Applicability::HasPlaceholders);

2
compiler/rustc_mir_transform/src/errors.rs
View File

@ -270,7 +270,7 @@ impl<'a> DecorateLint<'a, ()> for MustNotSupend<'_, '_> {
fn decorate_lint<'b>(self, diag: &'b mut rustc_errors::DiagnosticBuilder<'a, ()>) {
diag.span_label(self.yield_sp, fluent::_subdiag::label);
if let Some(reason) = self.reason {
diag.subdiagnostic(reason);
diag.subdiagnostic(diag.dcx, reason);
}
diag.span_help(self.src_sp, fluent::_subdiag::help);
diag.arg("pre", self.pre);

2
compiler/rustc_parse/src/parser/diagnostics.rs
View File

@ -2350,7 +2350,7 @@ impl<'a> Parser<'a> {
let mut err = self.dcx().struct_span_err(span, msg);
let sp = self.sess.source_map().start_point(self.token.span);
if let Some(sp) = self.sess.ambiguous_block_expr_parse.borrow().get(&sp) {
err.subdiagnostic(ExprParenthesesNeeded::surrounding(*sp));
err.subdiagnostic(self.dcx(), ExprParenthesesNeeded::surrounding(*sp));
}
err.span_label(span, "expected expression");

2
compiler/rustc_parse/src/parser/expr.rs
View File

@ -1433,7 +1433,7 @@ impl<'a> Parser<'a> {
// If the input is something like `if a { 1 } else { 2 } | if a { 3 } else { 4 }`
// then suggest parens around the lhs.
if let Some(sp) = this.sess.ambiguous_block_expr_parse.borrow().get(&lo) {
err.subdiagnostic(ExprParenthesesNeeded::surrounding(*sp));
err.subdiagnostic(this.dcx(), ExprParenthesesNeeded::surrounding(*sp));
}
err
})

13
compiler/rustc_parse/src/parser/item.rs
View File

@ -1933,7 +1933,7 @@ impl<'a> Parser<'a> {
if self.token.kind == token::Not {
if let Err(mut err) = self.unexpected::<FieldDef>() {
// Encounter the macro invocation
err.subdiagnostic(MacroExpandsToAdtField { adt_ty });
err.subdiagnostic(self.dcx(), MacroExpandsToAdtField { adt_ty });
return Err(err);
}
}
@ -2352,10 +2352,13 @@ impl<'a> Parser<'a> {
.into_iter()
.any(|s| self.prev_token.is_ident_named(s));
err.subdiagnostic(errors::FnTraitMissingParen {
span: self.prev_token.span,
machine_applicable,
});
err.subdiagnostic(
self.dcx(),
errors::FnTraitMissingParen {
span: self.prev_token.span,
machine_applicable,
},
);
}
return Err(err);
}

2
compiler/rustc_parse/src/parser/pat.rs
View File

@ -843,7 +843,7 @@ impl<'a> Parser<'a> {
let sp = self.sess.source_map().start_point(self.token.span);
if let Some(sp) = self.sess.ambiguous_block_expr_parse.borrow().get(&sp) {
err.subdiagnostic(ExprParenthesesNeeded::surrounding(*sp));
err.subdiagnostic(self.dcx(), ExprParenthesesNeeded::surrounding(*sp));
}
Err(err)

24
compiler/rustc_resolve/src/diagnostics.rs
View File

@ -403,9 +403,12 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
}
if let Some(suggestion) = suggestion {
err.subdiagnostic(ChangeImportBindingSuggestion { span: binding_span, suggestion });
err.subdiagnostic(
self.dcx(),
ChangeImportBindingSuggestion { span: binding_span, suggestion },
);
} else {
err.subdiagnostic(ChangeImportBinding { span: binding_span });
err.subdiagnostic(self.dcx(), ChangeImportBinding { span: binding_span });
}
}
@ -1430,17 +1433,17 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
);
if macro_kind == MacroKind::Bang && ident.name == sym::macro_rules {
err.subdiagnostic(MaybeMissingMacroRulesName { span: ident.span });
err.subdiagnostic(self.dcx(), MaybeMissingMacroRulesName { span: ident.span });
return;
}
if macro_kind == MacroKind::Derive && (ident.name == sym::Send || ident.name == sym::Sync) {
err.subdiagnostic(ExplicitUnsafeTraits { span: ident.span, ident });
err.subdiagnostic(self.dcx(), ExplicitUnsafeTraits { span: ident.span, ident });
return;
}
if self.macro_names.contains(&ident.normalize_to_macros_2_0()) {
err.subdiagnostic(AddedMacroUse);
err.subdiagnostic(self.dcx(), AddedMacroUse);
return;
}
@ -1450,10 +1453,13 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
let span = self.def_span(def_id);
let source_map = self.tcx.sess.source_map();
let head_span = source_map.guess_head_span(span);
err.subdiagnostic(ConsiderAddingADerive {
span: head_span.shrink_to_lo(),
suggestion: "#[derive(Default)]\n".to_string(),
});
err.subdiagnostic(
self.dcx(),
ConsiderAddingADerive {
span: head_span.shrink_to_lo(),
suggestion: "#[derive(Default)]\n".to_string(),
},
);
}
for ns in [Namespace::MacroNS, Namespace::TypeNS, Namespace::ValueNS] {
if let Ok(binding) = self.early_resolve_ident_in_lexical_scope(

4
compiler/rustc_resolve/src/imports.rs
View File

@ -1262,12 +1262,12 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
// exclude decl_macro
if self.get_macro_by_def_id(def_id).macro_rules =>
{
err.subdiagnostic(ConsiderAddingMacroExport {
err.subdiagnostic(self.dcx(), ConsiderAddingMacroExport {
span: binding.span,
});
}
_ => {
err.subdiagnostic(ConsiderMarkingAsPub {
err.subdiagnostic(self.dcx(), ConsiderMarkingAsPub {
span: import.span,
ident,
});

24
compiler/rustc_resolve/src/late/diagnostics.rs
View File

@ -1111,11 +1111,14 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
Side::Start => (segment.ident.span.between(range.span), " @ ".into()),
Side::End => (range.span.to(segment.ident.span), format!("{} @ ..", segment.ident)),
};
err.subdiagnostic(errors::UnexpectedResUseAtOpInSlicePatWithRangeSugg {
span,
ident: segment.ident,
snippet,
});
err.subdiagnostic(
self.r.dcx(),
errors::UnexpectedResUseAtOpInSlicePatWithRangeSugg {
span,
ident: segment.ident,
snippet,
},
);
}
enum Side {
@ -1207,10 +1210,13 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
});
if let Some(param) = param {
err.subdiagnostic(errors::UnexpectedResChangeTyToConstParamSugg {
span: param.shrink_to_lo(),
applicability,
});
err.subdiagnostic(
self.r.dcx(),
errors::UnexpectedResChangeTyToConstParamSugg {
span: param.shrink_to_lo(),
applicability,
},
);
}
}

10
compiler/rustc_session/src/parse.rs
View File

@ -173,21 +173,21 @@ pub fn add_feature_diagnostics_for_issue(
feature_from_cli: bool,
) {
if let Some(n) = find_feature_issue(feature, issue) {
err.subdiagnostic(FeatureDiagnosticForIssue { n });
err.subdiagnostic(sess.dcx(), FeatureDiagnosticForIssue { n });
}
// #23973: do not suggest `#![feature(...)]` if we are in beta/stable
if sess.parse_sess.unstable_features.is_nightly_build() {
if feature_from_cli {
err.subdiagnostic(CliFeatureDiagnosticHelp { feature });
err.subdiagnostic(sess.dcx(), CliFeatureDiagnosticHelp { feature });
} else {
err.subdiagnostic(FeatureDiagnosticHelp { feature });
err.subdiagnostic(sess.dcx(), FeatureDiagnosticHelp { feature });
}
if sess.opts.unstable_opts.ui_testing {
err.subdiagnostic(SuggestUpgradeCompiler::ui_testing());
err.subdiagnostic(sess.dcx(), SuggestUpgradeCompiler::ui_testing());
} else if let Some(suggestion) = SuggestUpgradeCompiler::new() {
err.subdiagnostic(suggestion);
err.subdiagnostic(sess.dcx(), suggestion);
}
}
}

7
compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
View File

@ -4558,11 +4558,14 @@ fn hint_missing_borrow<'tcx>(
}
if !to_borrow.is_empty() {
err.subdiagnostic(errors::AdjustSignatureBorrow::Borrow { to_borrow });
err.subdiagnostic(infcx.dcx(), errors::AdjustSignatureBorrow::Borrow { to_borrow });
}
if !remove_borrow.is_empty() {
err.subdiagnostic(errors::AdjustSignatureBorrow::RemoveBorrow { remove_borrow });
err.subdiagnostic(
infcx.dcx(),
errors::AdjustSignatureBorrow::RemoveBorrow { remove_borrow },
);
}
}

2
src/tools/miri/src/diagnostics.rs
View File

@ -505,7 +505,7 @@ pub fn report_msg<'tcx>(
let is_local = machine.is_local(frame_info);
// No span for non-local frames and the first frame (which is the error site).
if is_local && idx > 0 {
err.eager_subdiagnostic(err.dcx, frame_info.as_note(machine.tcx));
err.subdiagnostic(err.dcx, frame_info.as_note(machine.tcx));
} else {
let sm = sess.source_map();
let span = sm.span_to_embeddable_string(frame_info.span);

11
src/tools/rustfmt/src/parse/session.rs
View File

@ -1,3 +1,4 @@
use std::borrow::Cow;
use std::path::Path;
use std::sync::atomic::{AtomicBool, Ordering};
@ -40,6 +41,16 @@ impl Translate for SilentEmitter {
fn fallback_fluent_bundle(&self) -> &rustc_errors::FluentBundle {
panic!("silent emitter attempted to translate a diagnostic");
}
// Override `translate_message` for the silent emitter because eager translation of
// subdiagnostics result in a call to this.
fn translate_message<'a>(
&'a self,
message: &'a rustc_errors::DiagnosticMessage,
_: &'a rustc_errors::translation::FluentArgs<'_>,
) -> Result<Cow<'_, str>, rustc_errors::error::TranslateError<'_>> {
rustc_errors::emitter::silent_translate(message)
}
}
impl Emitter for SilentEmitter {

10
tests/ui-fulldeps/session-diagnostic/diagnostic-derive.rs
View File

@ -701,7 +701,7 @@ struct RawIdentDiagnosticArg {
#[diag(no_crate_example)]
struct SubdiagnosticBad {
#[subdiagnostic(bad)]
//~^ ERROR `eager` is the only supported nested attribute for `subdiagnostic`
//~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute
note: Note,
}
@ -717,7 +717,7 @@ struct SubdiagnosticBadStr {
#[diag(no_crate_example)]
struct SubdiagnosticBadTwice {
#[subdiagnostic(bad, bad)]
//~^ ERROR `eager` is the only supported nested attribute for `subdiagnostic`
//~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute
note: Note,
}
@ -725,7 +725,7 @@ struct SubdiagnosticBadTwice {
#[diag(no_crate_example)]
struct SubdiagnosticBadLitStr {
#[subdiagnostic("bad")]
//~^ ERROR `eager` is the only supported nested attribute for `subdiagnostic`
//~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute
note: Note,
}
@ -739,8 +739,9 @@ struct SubdiagnosticEagerLint {
#[derive(Diagnostic)]
#[diag(no_crate_example)]
struct SubdiagnosticEagerCorrect {
struct SubdiagnosticEagerFormerlyCorrect {
#[subdiagnostic(eager)]
//~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute
note: Note,
}
@ -761,6 +762,7 @@ pub(crate) struct SubdiagnosticWithSuggestion {
#[diag(no_crate_example)]
struct SubdiagnosticEagerSuggestion {
#[subdiagnostic(eager)]
//~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute
sub: SubdiagnosticWithSuggestion,
}

44
tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr
View File

@ -468,11 +468,11 @@ LL | #[label]
|
= help: `#[label]` and `#[suggestion]` can only be applied to fields
error: `eager` is the only supported nested attribute for `subdiagnostic`
--> $DIR/diagnostic-derive.rs:703:7
error: `#[subdiagnostic(...)]` is not a valid attribute
--> $DIR/diagnostic-derive.rs:703:5
|
LL | #[subdiagnostic(bad)]
| ^^^^^^^^^^^^^
| ^
error: `#[subdiagnostic = ...]` is not a valid attribute
--> $DIR/diagnostic-derive.rs:711:5
@ -480,40 +480,50 @@ error: `#[subdiagnostic = ...]` is not a valid attribute
LL | #[subdiagnostic = "bad"]
| ^
error: `eager` is the only supported nested attribute for `subdiagnostic`
--> $DIR/diagnostic-derive.rs:719:7
error: `#[subdiagnostic(...)]` is not a valid attribute
--> $DIR/diagnostic-derive.rs:719:5
|
LL | #[subdiagnostic(bad, bad)]
| ^^^^^^^^^^^^^
| ^
error: `eager` is the only supported nested attribute for `subdiagnostic`
--> $DIR/diagnostic-derive.rs:727:7
error: `#[subdiagnostic(...)]` is not a valid attribute
--> $DIR/diagnostic-derive.rs:727:5
|
LL | #[subdiagnostic("bad")]
| ^^^^^^^^^^^^^
| ^
error: `#[subdiagnostic(...)]` is not a valid attribute
--> $DIR/diagnostic-derive.rs:735:5
|
LL | #[subdiagnostic(eager)]
| ^
error: `#[subdiagnostic(...)]` is not a valid attribute
--> $DIR/diagnostic-derive.rs:743:5
|
= help: eager subdiagnostics are not supported on lints
LL | #[subdiagnostic(eager)]
| ^
error: `#[subdiagnostic(...)]` is not a valid attribute
--> $DIR/diagnostic-derive.rs:764:5
|
LL | #[subdiagnostic(eager)]
| ^
error: expected at least one string literal for `code(...)`
--> $DIR/diagnostic-derive.rs:793:23
--> $DIR/diagnostic-derive.rs:795:23
|
LL | #[suggestion(code())]
| ^
error: `code(...)` must contain only string literals
--> $DIR/diagnostic-derive.rs:801:23
--> $DIR/diagnostic-derive.rs:803:23
|
LL | #[suggestion(code(foo))]
| ^^^
error: `#[suggestion(...)]` is not a valid attribute
--> $DIR/diagnostic-derive.rs:825:5
--> $DIR/diagnostic-derive.rs:827:5
|
LL | #[suggestion(no_crate_suggestion, code = "")]
| ^
@ -529,13 +539,13 @@ LL | #[diag = "E0123"]
| ^ maybe a missing crate `core`?
error[E0433]: failed to resolve: maybe a missing crate `core`?
--> $DIR/diagnostic-derive.rs:801:23
--> $DIR/diagnostic-derive.rs:803:23
|
LL | #[suggestion(code(foo))]
| ^^^ maybe a missing crate `core`?
error[E0433]: failed to resolve: maybe a missing crate `core`?
--> $DIR/diagnostic-derive.rs:810:25
--> $DIR/diagnostic-derive.rs:812:25
|
LL | #[suggestion(code = 3)]
| ^ maybe a missing crate `core`?
@ -601,7 +611,7 @@ LL | #[diag(nonsense, code = E0123)]
| ^^^^^^^^ not found in `crate::fluent_generated`
error[E0425]: cannot find value `__code_34` in this scope
--> $DIR/diagnostic-derive.rs:807:10
--> $DIR/diagnostic-derive.rs:809:10
|
LL | #[derive(Diagnostic)]
| ^^^^^^^^^^ not found in this scope
@ -622,7 +632,7 @@ note: required by a bound in `DiagnosticBuilder::<'a, G>::arg`
--> $COMPILER_DIR/rustc_errors/src/diagnostic_builder.rs:LL:CC
= note: this error originates in the macro `forward` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 84 previous errors
error: aborting due to 86 previous errors
Some errors have detailed explanations: E0277, E0425, E0433.
For more information about an error, try `rustc --explain E0277`.