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Auto merge of #120980 - matthiaskrgr:rollup-dsjsqql, r=matthiaskrgr

Browse Source 
Rollup of 11 pull requests

Successful merges:

 - #120765 (Reorder diagnostics API)
 - #120833 (More internal emit diagnostics cleanups)
 - #120899 (Gracefully handle non-WF alias in `assemble_alias_bound_candidates_recur`)
 - #120917 (Remove a bunch of dead parameters in functions)
 - #120928 (Add test for recently fixed issue)
 - #120933 (check_consts: fix duplicate errors, make importance consistent)
 - #120936 (improve `btree_cursors` functions documentation)
 - #120944 (Check that the ABI of the instance we are inlining is correct)
 - #120956 (Clean inlined type alias with correct param-env)
 - #120962 (Add myself to library/std review)
 - #120972 (fix ICE for deref coercions with type errors)

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2024-02-12 17:06:22 +00:00
commit b381d3ab27
62 changed files with 805 additions and 790 deletions
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1
compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
View File

@ -3018,7 +3018,6 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
/// assignment to `x.f`).
pub(crate) fn report_illegal_reassignment(
&mut self,
_location: Location,
(place, span): (Place<'tcx>, Span),
assigned_span: Span,
err_place: Place<'tcx>,

3
compiler/rustc_borrowck/src/lib.rs
View File

@ -1036,7 +1036,6 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
self,
self.infcx.tcx,
self.body,
location,
(sd, place_span.0),
&borrow_set,
|borrow_index| borrows_in_scope.contains(borrow_index),
@ -2174,7 +2173,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
// report the error as an illegal reassignment
let init = &self.move_data.inits[init_index];
let assigned_span = init.span(self.body);
self.report_illegal_reassignment(location, (place, span), assigned_span, place);
self.report_illegal_reassignment((place, span), assigned_span, place);
} else {
self.report_mutability_error(place, span, the_place_err, error_access, location)
}

1
compiler/rustc_borrowck/src/path_utils.rs
View File

@ -27,7 +27,6 @@ pub(super) fn each_borrow_involving_path<'tcx, F, I, S>(
s: &mut S,
tcx: TyCtxt<'tcx>,
body: &Body<'tcx>,
_location: Location,
access_place: (AccessDepth, Place<'tcx>),
borrow_set: &BorrowSet<'tcx>,
is_candidate: I,

1
compiler/rustc_borrowck/src/polonius/loan_invalidations.rs
View File

@ -340,7 +340,6 @@ impl<'cx, 'tcx> LoanInvalidationsGenerator<'cx, 'tcx> {
self,
self.tcx,
self.body,
location,
(sd, place),
self.borrow_set,
|_| true,

6
compiler/rustc_borrowck/src/region_infer/mod.rs
View File

@ -662,7 +662,7 @@ impl<'tcx> RegionInferenceContext<'tcx> {
polonius_output: Option<Rc<PoloniusOutput>>,
) -> (Option<ClosureRegionRequirements<'tcx>>, RegionErrors<'tcx>) {
let mir_def_id = body.source.def_id();
self.propagate_constraints(body);
self.propagate_constraints();
let mut errors_buffer = RegionErrors::new(infcx.tcx);
@ -716,8 +716,8 @@ impl<'tcx> RegionInferenceContext<'tcx> {
/// for each region variable until all the constraints are
/// satisfied. Note that some values may grow **too** large to be
/// feasible, but we check this later.
#[instrument(skip(self, _body), level = "debug")]
fn propagate_constraints(&mut self, _body: &Body<'tcx>) {
#[instrument(skip(self), level = "debug")]
fn propagate_constraints(&mut self) {
debug!("constraints={:#?}", {
let mut constraints: Vec<_> = self.outlives_constraints().collect();
constraints.sort_by_key(|c| (c.sup, c.sub));

2
compiler/rustc_const_eval/src/const_eval/error.rs
View File

@ -151,7 +151,7 @@ where
let mut err = tcx.dcx().create_err(err);
let msg = error.diagnostic_message();
error.add_args(tcx.dcx(), &mut err);
error.add_args(&mut err);
// Use *our* span to label the interp error
err.span_label(our_span, msg);

134
compiler/rustc_const_eval/src/errors.rs
View File

@ -426,7 +426,7 @@ pub struct UndefinedBehavior {
pub trait ReportErrorExt {
/// Returns the diagnostic message for this error.
fn diagnostic_message(&self) -> DiagnosticMessage;
fn add_args<G: EmissionGuarantee>(self, dcx: &DiagCtxt, builder: &mut DiagnosticBuilder<'_, G>);
fn add_args<G: EmissionGuarantee>(self, diag: &mut DiagnosticBuilder<'_, G>);
fn debug(self) -> String
where
@ -434,11 +434,11 @@ pub trait ReportErrorExt {
{
ty::tls::with(move |tcx| {
let dcx = tcx.dcx();
let mut builder = dcx.struct_allow(DiagnosticMessage::Str(String::new().into()));
let mut diag = dcx.struct_allow(DiagnosticMessage::Str(String::new().into()));
let message = self.diagnostic_message();
self.add_args(dcx, &mut builder);
let s = dcx.eagerly_translate_to_string(message, builder.args());
builder.cancel();
self.add_args(&mut diag);
let s = dcx.eagerly_translate_to_string(message, diag.args());
diag.cancel();
s
})
}
@ -505,20 +505,17 @@ impl<'a> ReportErrorExt for UndefinedBehaviorInfo<'a> {
}
}
fn add_args<G: EmissionGuarantee>(
self,
dcx: &DiagCtxt,
builder: &mut DiagnosticBuilder<'_, G>,
) {
fn add_args<G: EmissionGuarantee>(self, diag: &mut DiagnosticBuilder<'_, G>) {
use UndefinedBehaviorInfo::*;
let dcx = diag.dcx;
match self {
Ub(_) => {}
Custom(custom) => {
(custom.add_args)(&mut |name, value| {
builder.arg(name, value);
diag.arg(name, value);
});
}
ValidationError(e) => e.add_args(dcx, builder),
ValidationError(e) => e.add_args(diag),
Unreachable
| DivisionByZero
@ -533,20 +530,18 @@ impl<'a> ReportErrorExt for UndefinedBehaviorInfo<'a> {
| UninhabitedEnumVariantWritten(_)
| UninhabitedEnumVariantRead(_) => {}
BoundsCheckFailed { len, index } => {
builder.arg("len", len);
builder.arg("index", index);
diag.arg("len", len);
diag.arg("index", index);
}
UnterminatedCString(ptr) | InvalidFunctionPointer(ptr) | InvalidVTablePointer(ptr) => {
builder.arg("pointer", ptr);
diag.arg("pointer", ptr);
}
PointerUseAfterFree(alloc_id, msg) => {
builder
.arg("alloc_id", alloc_id)
diag.arg("alloc_id", alloc_id)
.arg("bad_pointer_message", bad_pointer_message(msg, dcx));
}
PointerOutOfBounds { alloc_id, alloc_size, ptr_offset, ptr_size, msg } => {
builder
.arg("alloc_id", alloc_id)
diag.arg("alloc_id", alloc_id)
.arg("alloc_size", alloc_size.bytes())
.arg("ptr_offset", ptr_offset)
.arg("ptr_size", ptr_size.bytes())
@ -554,47 +549,47 @@ impl<'a> ReportErrorExt for UndefinedBehaviorInfo<'a> {
}
DanglingIntPointer(ptr, msg) => {
if ptr != 0 {
builder.arg("pointer", format!("{ptr:#x}[noalloc]"));
diag.arg("pointer", format!("{ptr:#x}[noalloc]"));
}
builder.arg("bad_pointer_message", bad_pointer_message(msg, dcx));
diag.arg("bad_pointer_message", bad_pointer_message(msg, dcx));
}
AlignmentCheckFailed(Misalignment { required, has }, msg) => {
builder.arg("required", required.bytes());
builder.arg("has", has.bytes());
builder.arg("msg", format!("{msg:?}"));
diag.arg("required", required.bytes());
diag.arg("has", has.bytes());
diag.arg("msg", format!("{msg:?}"));
}
WriteToReadOnly(alloc) | DerefFunctionPointer(alloc) | DerefVTablePointer(alloc) => {
builder.arg("allocation", alloc);
diag.arg("allocation", alloc);
}
InvalidBool(b) => {
builder.arg("value", format!("{b:02x}"));
diag.arg("value", format!("{b:02x}"));
}
InvalidChar(c) => {
builder.arg("value", format!("{c:08x}"));
diag.arg("value", format!("{c:08x}"));
}
InvalidTag(tag) => {
builder.arg("tag", format!("{tag:x}"));
diag.arg("tag", format!("{tag:x}"));
}
InvalidStr(err) => {
builder.arg("err", format!("{err}"));
diag.arg("err", format!("{err}"));
}
InvalidUninitBytes(Some((alloc, info))) => {
builder.arg("alloc", alloc);
builder.arg("access", info.access);
builder.arg("uninit", info.bad);
diag.arg("alloc", alloc);
diag.arg("access", info.access);
diag.arg("uninit", info.bad);
}
ScalarSizeMismatch(info) => {
builder.arg("target_size", info.target_size);
builder.arg("data_size", info.data_size);
diag.arg("target_size", info.target_size);
diag.arg("data_size", info.data_size);
}
InvalidNichedEnumVariantWritten { enum_ty } => {
builder.arg("ty", enum_ty.to_string());
diag.arg("ty", enum_ty.to_string());
}
AbiMismatchArgument { caller_ty, callee_ty }
| AbiMismatchReturn { caller_ty, callee_ty } => {
builder.arg("caller_ty", caller_ty.to_string());
builder.arg("callee_ty", callee_ty.to_string());
diag.arg("caller_ty", caller_ty.to_string());
diag.arg("callee_ty", callee_ty.to_string());
}
}
}
@ -674,7 +669,7 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> {
}
}
fn add_args<G: EmissionGuarantee>(self, dcx: &DiagCtxt, err: &mut DiagnosticBuilder<'_, G>) {
fn add_args<G: EmissionGuarantee>(self, err: &mut DiagnosticBuilder<'_, G>) {
use crate::fluent_generated as fluent;
use rustc_middle::mir::interpret::ValidationErrorKind::*;
@ -684,12 +679,12 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> {
}
let message = if let Some(path) = self.path {
dcx.eagerly_translate_to_string(
err.dcx.eagerly_translate_to_string(
fluent::const_eval_validation_front_matter_invalid_value_with_path,
[("path".into(), DiagnosticArgValue::Str(path.into()))].iter().map(|(a, b)| (a, b)),
)
} else {
dcx.eagerly_translate_to_string(
err.dcx.eagerly_translate_to_string(
fluent::const_eval_validation_front_matter_invalid_value,
[].into_iter(),
)
@ -700,7 +695,6 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> {
fn add_range_arg<G: EmissionGuarantee>(
r: WrappingRange,
max_hi: u128,
dcx: &DiagCtxt,
err: &mut DiagnosticBuilder<'_, G>,
) {
let WrappingRange { start: lo, end: hi } = r;
@ -724,7 +718,7 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> {
("hi".into(), DiagnosticArgValue::Str(hi.to_string().into())),
];
let args = args.iter().map(|(a, b)| (a, b));
let message = dcx.eagerly_translate_to_string(msg, args);
let message = err.dcx.eagerly_translate_to_string(msg, args);
err.arg("in_range", message);
}
@ -746,7 +740,7 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> {
ExpectedKind::EnumTag => fluent::const_eval_validation_expected_enum_tag,
ExpectedKind::Str => fluent::const_eval_validation_expected_str,
};
let msg = dcx.eagerly_translate_to_string(msg, [].into_iter());
let msg = err.dcx.eagerly_translate_to_string(msg, [].into_iter());
err.arg("expected", msg);
}
InvalidEnumTag { value }
@ -757,11 +751,11 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> {
err.arg("value", value);
}
NullablePtrOutOfRange { range, max_value } | PtrOutOfRange { range, max_value } => {
add_range_arg(range, max_value, dcx, err)
add_range_arg(range, max_value, err)
}
OutOfRange { range, max_value, value } => {
err.arg("value", value);
add_range_arg(range, max_value, dcx, err);
add_range_arg(range, max_value, err);
}
UnalignedPtr { required_bytes, found_bytes, .. } => {
err.arg("required_bytes", required_bytes);
@ -802,13 +796,13 @@ impl ReportErrorExt for UnsupportedOpInfo {
UnsupportedOpInfo::ExternStatic(_) => const_eval_extern_static,
}
}
fn add_args<G: EmissionGuarantee>(self, _: &DiagCtxt, builder: &mut DiagnosticBuilder<'_, G>) {
fn add_args<G: EmissionGuarantee>(self, diag: &mut DiagnosticBuilder<'_, G>) {
use crate::fluent_generated::*;
use UnsupportedOpInfo::*;
if let ReadPointerAsInt(_) | OverwritePartialPointer(_) | ReadPartialPointer(_) = self {
builder.help(const_eval_ptr_as_bytes_1);
builder.help(const_eval_ptr_as_bytes_2);
diag.help(const_eval_ptr_as_bytes_1);
diag.help(const_eval_ptr_as_bytes_2);
}
match self {
// `ReadPointerAsInt(Some(info))` is never printed anyway, it only serves as an error to
@ -816,10 +810,10 @@ impl ReportErrorExt for UnsupportedOpInfo {
// print. So it's not worth the effort of having diagnostics that can print the `info`.
UnsizedLocal | Unsupported(_) | ReadPointerAsInt(_) => {}
OverwritePartialPointer(ptr) | ReadPartialPointer(ptr) => {
builder.arg("ptr", ptr);
diag.arg("ptr", ptr);
}
ThreadLocalStatic(did) | ExternStatic(did) => {
builder.arg("did", format!("{did:?}"));
diag.arg("did", format!("{did:?}"));
}
}
}
@ -835,18 +829,14 @@ impl<'tcx> ReportErrorExt for InterpError<'tcx> {
InterpError::MachineStop(e) => e.diagnostic_message(),
}
}
fn add_args<G: EmissionGuarantee>(
self,
dcx: &DiagCtxt,
builder: &mut DiagnosticBuilder<'_, G>,
) {
fn add_args<G: EmissionGuarantee>(self, diag: &mut DiagnosticBuilder<'_, G>) {
match self {
InterpError::UndefinedBehavior(ub) => ub.add_args(dcx, builder),
InterpError::Unsupported(e) => e.add_args(dcx, builder),
InterpError::InvalidProgram(e) => e.add_args(dcx, builder),
InterpError::ResourceExhaustion(e) => e.add_args(dcx, builder),
InterpError::UndefinedBehavior(ub) => ub.add_args(diag),
InterpError::Unsupported(e) => e.add_args(diag),
InterpError::InvalidProgram(e) => e.add_args(diag),
InterpError::ResourceExhaustion(e) => e.add_args(diag),
InterpError::MachineStop(e) => e.add_args(&mut |name, value| {
builder.arg(name, value);
diag.arg(name, value);
}),
}
}
@ -864,28 +854,24 @@ impl<'tcx> ReportErrorExt for InvalidProgramInfo<'tcx> {
}
}
}
fn add_args<G: EmissionGuarantee>(
self,
dcx: &DiagCtxt,
builder: &mut DiagnosticBuilder<'_, G>,
) {
fn add_args<G: EmissionGuarantee>(self, diag: &mut DiagnosticBuilder<'_, G>) {
match self {
InvalidProgramInfo::TooGeneric | InvalidProgramInfo::AlreadyReported(_) => {}
InvalidProgramInfo::Layout(e) => {
// The level doesn't matter, `diag` is consumed without it being used.
// The level doesn't matter, `dummy_diag` is consumed without it being used.
let dummy_level = Level::Bug;
let diag: DiagnosticBuilder<'_, ()> =
e.into_diagnostic().into_diagnostic(dcx, dummy_level);
for (name, val) in diag.args() {
builder.arg(name.clone(), val.clone());
let dummy_diag: DiagnosticBuilder<'_, ()> =
e.into_diagnostic().into_diagnostic(diag.dcx, dummy_level);
for (name, val) in dummy_diag.args() {
diag.arg(name.clone(), val.clone());
}
diag.cancel();
dummy_diag.cancel();
}
InvalidProgramInfo::FnAbiAdjustForForeignAbi(
AdjustForForeignAbiError::Unsupported { arch, abi },
) => {
builder.arg("arch", arch);
builder.arg("abi", abi.name());
diag.arg("arch", arch);
diag.arg("abi", abi.name());
}
}
}
@ -900,7 +886,7 @@ impl ReportErrorExt for ResourceExhaustionInfo {
ResourceExhaustionInfo::AddressSpaceFull => const_eval_address_space_full,
}
}
fn add_args<G: EmissionGuarantee>(self, _: &DiagCtxt, _: &mut DiagnosticBuilder<'_, G>) {}
fn add_args<G: EmissionGuarantee>(self, _: &mut DiagnosticBuilder<'_, G>) {}
}
impl rustc_errors::IntoDiagnosticArg for InternKind {

2
compiler/rustc_const_eval/src/interpret/eval_context.rs
View File

@ -445,7 +445,7 @@ pub fn format_interp_error<'tcx>(dcx: &DiagCtxt, e: InterpErrorInfo<'tcx>) -> St
#[allow(rustc::untranslatable_diagnostic)]
let mut diag = dcx.struct_allow("");
let msg = e.diagnostic_message();
e.add_args(dcx, &mut diag);
e.add_args(&mut diag);
let s = dcx.eagerly_translate_to_string(msg, diag.args());
diag.cancel();
s

8
compiler/rustc_const_eval/src/transform/check_consts/check.rs
View File

@ -619,9 +619,11 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> {
if base_ty.is_unsafe_ptr() {
if place_ref.projection.is_empty() {
let decl = &self.body.local_decls[place_ref.local];
if let LocalInfo::StaticRef { def_id, .. } = *decl.local_info() {
let span = decl.source_info.span;
self.check_static(def_id, span);
// If this is a static, then this is not really dereferencing a pointer,
// just directly accessing a static. That is not subject to any feature
// gates (except for the one about whether statics can even be used, but
// that is checked already by `visit_operand`).
if let LocalInfo::StaticRef { .. } = *decl.local_info() {
return;
}
}

14
compiler/rustc_const_eval/src/transform/check_consts/ops.rs
View File

@ -409,11 +409,6 @@ impl<'tcx> NonConstOp<'tcx> for TransientCellBorrow {
fn status_in_item(&self, _: &ConstCx<'_, 'tcx>) -> Status {
Status::Unstable(sym::const_refs_to_cell)
}
fn importance(&self) -> DiagnosticImportance {
// The cases that cannot possibly work will already emit a `CellBorrow`, so we should
// not additionally emit a feature gate error if activating the feature gate won't work.
DiagnosticImportance::Secondary
}
fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> {
ccx.tcx
.sess
@ -427,6 +422,11 @@ impl<'tcx> NonConstOp<'tcx> for TransientCellBorrow {
/// it in the future for static items.
pub struct CellBorrow;
impl<'tcx> NonConstOp<'tcx> for CellBorrow {
fn importance(&self) -> DiagnosticImportance {
// Most likely the code will try to do mutation with these borrows, which
// triggers its own errors. Only show this one if that does not happen.
DiagnosticImportance::Secondary
}
fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> {
// FIXME: Maybe a more elegant solution to this if else case
if let hir::ConstContext::Static(_) = ccx.const_kind() {
@ -459,8 +459,8 @@ impl<'tcx> NonConstOp<'tcx> for MutBorrow {
}
fn importance(&self) -> DiagnosticImportance {
// If there were primary errors (like non-const function calls), do not emit further
// errors about mutable references.
// Most likely the code will try to do mutation with these borrows, which
// triggers its own errors. Only show this one if that does not happen.
DiagnosticImportance::Secondary
}

8
compiler/rustc_const_eval/src/transform/check_consts/resolver.rs
View File

@ -96,7 +96,7 @@ where
});
}
fn address_of_allows_mutation(&self, _mt: mir::Mutability, _place: mir::Place<'tcx>) -> bool {
fn address_of_allows_mutation(&self) -> bool {
// Exact set of permissions granted by AddressOf is undecided. Conservatively assume that
// it might allow mutation until resolution of #56604.
true
@ -171,10 +171,8 @@ where
self.super_rvalue(rvalue, location);
match rvalue {
mir::Rvalue::AddressOf(mt, borrowed_place) => {
if !borrowed_place.is_indirect()
&& self.address_of_allows_mutation(*mt, *borrowed_place)
{
mir::Rvalue::AddressOf(_mt, borrowed_place) => {
if !borrowed_place.is_indirect() && self.address_of_allows_mutation() {
let place_ty = borrowed_place.ty(self.ccx.body, self.ccx.tcx).ty;
if Q::in_any_value_of_ty(self.ccx, place_ty) {
self.state.qualif.insert(borrowed_place.local);

700
compiler/rustc_errors/src/lib.rs
View File

@ -411,8 +411,8 @@ impl CodeSuggestion {
/// or `.span_bug` rather than a failed assertion, etc.
pub struct ExplicitBug;
/// Signifies that the compiler died with an explicit call to `.delay_*_bug`
/// rather than a failed assertion, etc.
/// Signifies that the compiler died due to a delayed bug rather than a failed
/// assertion, etc.
pub struct DelayedBugPanic;
/// A `DiagCtxt` deals with errors and other compiler output.
@ -428,10 +428,14 @@ pub struct DiagCtxt {
struct DiagCtxtInner {
flags: DiagCtxtFlags,
/// The number of lint errors that have been emitted, including duplicates.
lint_err_count: usize,
/// The number of non-lint errors that have been emitted, including duplicates.
err_count: usize,
/// The error guarantees from all emitted errors. The length gives the error count.
err_guars: Vec<ErrorGuaranteed>,
/// The error guarantee from all emitted lint errors. The length gives the
/// lint error count.
lint_err_guars: Vec<ErrorGuaranteed>,
/// The delayed bugs and their error guarantees.
delayed_bugs: Vec<(DelayedDiagnostic, ErrorGuaranteed)>,
good_path_delayed_bugs: Vec<DelayedDiagnostic>,
/// The number of stashed errors. Unlike the other counts, this can go up
/// and down, so it doesn't guarantee anything.
@ -447,8 +451,6 @@ struct DiagCtxtInner {
has_printed: bool,
emitter: Box<DynEmitter>,
delayed_bugs: Vec<DelayedDiagnostic>,
good_path_delayed_bugs: Vec<DelayedDiagnostic>,
/// This flag indicates that an expected diagnostic was emitted and suppressed.
/// This is used for the `good_path_delayed_bugs` check.
suppressed_expected_diag: bool,
@ -560,7 +562,7 @@ impl Drop for DiagCtxtInner {
fn drop(&mut self) {
self.emit_stashed_diagnostics();
if !self.has_errors() {
if self.err_guars.is_empty() {
self.flush_delayed(DelayedBugKind::Normal)
}
@ -604,15 +606,15 @@ impl DiagCtxt {
Self {
inner: Lock::new(DiagCtxtInner {
flags: DiagCtxtFlags { can_emit_warnings: true, ..Default::default() },
lint_err_count: 0,
err_count: 0,
err_guars: Vec::new(),
lint_err_guars: Vec::new(),
delayed_bugs: Vec::new(),
good_path_delayed_bugs: Vec::new(),
stashed_err_count: 0,
deduplicated_err_count: 0,
deduplicated_warn_count: 0,
has_printed: false,
emitter,
delayed_bugs: Vec::new(),
good_path_delayed_bugs: Vec::new(),
suppressed_expected_diag: false,
taught_diagnostics: Default::default(),
emitted_diagnostic_codes: Default::default(),
@ -661,14 +663,14 @@ impl DiagCtxt {
/// the overall count of emitted error diagnostics.
pub fn reset_err_count(&self) {
let mut inner = self.inner.borrow_mut();
inner.lint_err_count = 0;
inner.err_count = 0;
inner.stashed_err_count = 0;
inner.deduplicated_err_count = 0;
inner.deduplicated_warn_count = 0;
inner.has_printed = false;
// actually free the underlying memory (which `clear` would not do)
inner.err_guars = Default::default();
inner.lint_err_guars = Default::default();
inner.delayed_bugs = Default::default();
inner.good_path_delayed_bugs = Default::default();
inner.taught_diagnostics = Default::default();
@ -718,221 +720,10 @@ impl DiagCtxt {
self.inner.borrow_mut().emit_stashed_diagnostics()
}
/// Construct a builder at the `Warning` level at the given `span` and with the `msg`.
///
/// An `emit` call on the builder will only emit if `can_emit_warnings` is `true`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_span_warn(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, ()> {
self.struct_warn(msg).with_span(span)
}
/// Construct a builder at the `Warning` level with the `msg`.
///
/// An `emit` call on the builder will only emit if `can_emit_warnings` is `true`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_warn(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Warning, msg)
}
/// Construct a builder at the `Allow` level with the `msg`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_allow(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Allow, msg)
}
/// Construct a builder at the `Expect` level with the `msg`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_expect(
&self,
msg: impl Into<DiagnosticMessage>,
id: LintExpectationId,
) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Expect(id), msg)
}
/// Construct a builder at the `Error` level at the given `span` and with the `msg`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_span_err(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_> {
self.struct_err(msg).with_span(span)
}
/// Construct a builder at the `Error` level with the `msg`.
// FIXME: This method should be removed (every error should have an associated error code).
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_err(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_> {
DiagnosticBuilder::new(self, Error, msg)
}
/// Construct a builder at the `Fatal` level at the given `span` and with the `msg`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_span_fatal(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, FatalAbort> {
self.struct_fatal(msg).with_span(span)
}
/// Construct a builder at the `Fatal` level with the `msg`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_fatal(
&self,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, FatalAbort> {
DiagnosticBuilder::new(self, Fatal, msg)
}
/// Construct a builder at the `Help` level with the `msg`.
#[rustc_lint_diagnostics]
pub fn struct_help(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Help, msg)
}
/// Construct a builder at the `Note` level with the `msg`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_note(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Note, msg)
}
/// Construct a builder at the `Bug` level with the `msg`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_bug(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, BugAbort> {
DiagnosticBuilder::new(self, Bug, msg)
}
/// Construct a builder at the `Bug` level at the given `span` with the `msg`.
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_span_bug(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, BugAbort> {
self.struct_bug(msg).with_span(span)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn span_fatal(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) -> ! {
self.struct_span_fatal(span, msg).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn span_err(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> ErrorGuaranteed {
self.struct_span_err(span, msg).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn span_warn(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) {
self.struct_span_warn(span, msg).emit()
}
#[track_caller]
pub fn span_bug(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) -> ! {
self.struct_span_bug(span, msg).emit()
}
/// Ensures that compilation cannot succeed.
///
/// If this function has been called but no errors have been emitted and
/// compilation succeeds, it will cause an internal compiler error (ICE).
///
/// This can be used in code paths that should never run on successful compilations.
/// For example, it can be used to create an [`ErrorGuaranteed`]
/// (but you should prefer threading through the [`ErrorGuaranteed`] from an error emission
/// directly).
#[track_caller]
pub fn delayed_bug(&self, msg: impl Into<DiagnosticMessage>) -> ErrorGuaranteed {
DiagnosticBuilder::<ErrorGuaranteed>::new(self, DelayedBug, msg).emit()
}
/// Like `delayed_bug`, but takes an additional span.
///
/// Note: this function used to be called `delay_span_bug`. It was renamed
/// to match similar functions like `span_err`, `span_warn`, etc.
#[track_caller]
pub fn span_delayed_bug(
&self,
sp: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> ErrorGuaranteed {
DiagnosticBuilder::<ErrorGuaranteed>::new(self, DelayedBug, msg).with_span(sp).emit()
}
/// Ensures that a diagnostic is printed. See `Level::GoodPathDelayedBug`.
pub fn good_path_delayed_bug(&self, msg: impl Into<DiagnosticMessage>) {
DiagnosticBuilder::<()>::new(self, GoodPathDelayedBug, msg).emit()
}
#[track_caller]
#[rustc_lint_diagnostics]
pub fn span_note(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) {
self.struct_span_note(span, msg).emit()
}
#[track_caller]
#[rustc_lint_diagnostics]
pub fn struct_span_note(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Note, msg).with_span(span)
}
#[rustc_lint_diagnostics]
pub fn fatal(&self, msg: impl Into<DiagnosticMessage>) -> ! {
self.struct_fatal(msg).emit()
}
#[rustc_lint_diagnostics]
pub fn err(&self, msg: impl Into<DiagnosticMessage>) -> ErrorGuaranteed {
self.struct_err(msg).emit()
}
#[rustc_lint_diagnostics]
pub fn warn(&self, msg: impl Into<DiagnosticMessage>) {
self.struct_warn(msg).emit()
}
#[rustc_lint_diagnostics]
pub fn note(&self, msg: impl Into<DiagnosticMessage>) {
self.struct_note(msg).emit()
}
#[rustc_lint_diagnostics]
pub fn bug(&self, msg: impl Into<DiagnosticMessage>) -> ! {
self.struct_bug(msg).emit()
}
/// This excludes lint errors, delayed bugs, and stashed errors.
#[inline]
pub fn err_count(&self) -> usize {
self.inner.borrow().err_count
self.inner.borrow().err_guars.len()
}
/// This excludes normal errors, lint errors and delayed bugs. Unless
@ -946,36 +737,19 @@ impl DiagCtxt {
/// This excludes lint errors, delayed bugs, and stashed errors.
pub fn has_errors(&self) -> Option<ErrorGuaranteed> {
self.inner.borrow().has_errors().then(|| {
// FIXME(nnethercote) find a way to store an `ErrorGuaranteed`.
#[allow(deprecated)]
ErrorGuaranteed::unchecked_error_guaranteed()
})
self.inner.borrow().has_errors()
}
/// This excludes delayed bugs and stashed errors. Unless absolutely
/// necessary, prefer `has_errors` to this method.
pub fn has_errors_or_lint_errors(&self) -> Option<ErrorGuaranteed> {
let inner = self.inner.borrow();
let result = inner.has_errors() || inner.lint_err_count > 0;
result.then(|| {
// FIXME(nnethercote) find a way to store an `ErrorGuaranteed`.
#[allow(deprecated)]
ErrorGuaranteed::unchecked_error_guaranteed()
})
self.inner.borrow().has_errors_or_lint_errors()
}
/// This excludes stashed errors. Unless absolutely necessary, prefer
/// `has_errors` or `has_errors_or_lint_errors` to this method.
pub fn has_errors_or_lint_errors_or_delayed_bugs(&self) -> Option<ErrorGuaranteed> {
let inner = self.inner.borrow();
let result =
inner.has_errors() || inner.lint_err_count > 0 || !inner.delayed_bugs.is_empty();
result.then(|| {
// FIXME(nnethercote) find a way to store an `ErrorGuaranteed`.
#[allow(deprecated)]
ErrorGuaranteed::unchecked_error_guaranteed()
})
self.inner.borrow().has_errors_or_lint_errors_or_delayed_bugs()
}
pub fn print_error_count(&self, registry: &Registry) {
@ -1008,10 +782,10 @@ impl DiagCtxt {
.emit_diagnostic(Diagnostic::new(Warning, DiagnosticMessage::Str(warnings)));
}
(_, 0) => {
inner.emit_diagnostic(Diagnostic::new(Fatal, errors));
inner.emit_diagnostic(Diagnostic::new(Error, errors));
}
(_, _) => {
inner.emit_diagnostic(Diagnostic::new(Fatal, format!("{errors}; {warnings}")));
inner.emit_diagnostic(Diagnostic::new(Error, format!("{errors}; {warnings}")));
}
}
@ -1055,7 +829,7 @@ impl DiagCtxt {
pub fn abort_if_errors(&self) {
let mut inner = self.inner.borrow_mut();
inner.emit_stashed_diagnostics();
if inner.has_errors() {
if !inner.err_guars.is_empty() {
FatalError.raise();
}
}
@ -1077,84 +851,6 @@ impl DiagCtxt {
self.inner.borrow_mut().emit_diagnostic(diagnostic)
}
#[track_caller]
pub fn emit_err<'a>(&'a self, err: impl IntoDiagnostic<'a>) -> ErrorGuaranteed {
self.create_err(err).emit()
}
#[track_caller]
pub fn create_err<'a>(&'a self, err: impl IntoDiagnostic<'a>) -> DiagnosticBuilder<'a> {
err.into_diagnostic(self, Error)
}
#[track_caller]
pub fn create_warn<'a>(
&'a self,
warning: impl IntoDiagnostic<'a, ()>,
) -> DiagnosticBuilder<'a, ()> {
warning.into_diagnostic(self, Warning)
}
#[track_caller]
pub fn emit_warn<'a>(&'a self, warning: impl IntoDiagnostic<'a, ()>) {
self.create_warn(warning).emit()
}
#[track_caller]
pub fn create_almost_fatal<'a>(
&'a self,
fatal: impl IntoDiagnostic<'a, FatalError>,
) -> DiagnosticBuilder<'a, FatalError> {
fatal.into_diagnostic(self, Fatal)
}
#[track_caller]
pub fn emit_almost_fatal<'a>(
&'a self,
fatal: impl IntoDiagnostic<'a, FatalError>,
) -> FatalError {
self.create_almost_fatal(fatal).emit()
}
#[track_caller]
pub fn create_fatal<'a>(
&'a self,
fatal: impl IntoDiagnostic<'a, FatalAbort>,
) -> DiagnosticBuilder<'a, FatalAbort> {
fatal.into_diagnostic(self, Fatal)
}
#[track_caller]
pub fn emit_fatal<'a>(&'a self, fatal: impl IntoDiagnostic<'a, FatalAbort>) -> ! {
self.create_fatal(fatal).emit()
}
#[track_caller]
pub fn create_bug<'a>(
&'a self,
bug: impl IntoDiagnostic<'a, BugAbort>,
) -> DiagnosticBuilder<'a, BugAbort> {
bug.into_diagnostic(self, Bug)
}
#[track_caller]
pub fn emit_bug<'a>(&'a self, bug: impl IntoDiagnostic<'a, diagnostic_builder::BugAbort>) -> ! {
self.create_bug(bug).emit()
}
#[track_caller]
pub fn emit_note<'a>(&'a self, note: impl IntoDiagnostic<'a, ()>) {
self.create_note(note).emit()
}
#[track_caller]
pub fn create_note<'a>(
&'a self,
note: impl IntoDiagnostic<'a, ()>,
) -> DiagnosticBuilder<'a, ()> {
note.into_diagnostic(self, Note)
}
pub fn emit_artifact_notification(&self, path: &Path, artifact_type: &str) {
self.inner.borrow_mut().emitter.emit_artifact_notification(path, artifact_type);
}
@ -1175,8 +871,21 @@ impl DiagCtxt {
) {
let mut inner = self.inner.borrow_mut();
// This "error" is an odd duck.
// - It's only produce with JSON output.
// - It's not emitted the usual way, via `emit_diagnostic`.
// - The `$message_type` field is "unused_externs" rather than the usual
// "diagnosic".
//
// We count it as a lint error because it has a lint level. The value
// of `loud` (which comes from "unused-externs" or
// "unused-externs-silent"), also affects whether it's treated like a
// hard error or not.
if loud && lint_level.is_error() {
inner.lint_err_count += 1;
// This `unchecked_error_guaranteed` is valid. It is where the
// `ErrorGuaranteed` for unused_extern errors originates.
#[allow(deprecated)]
inner.lint_err_guars.push(ErrorGuaranteed::unchecked_error_guaranteed());
inner.panic_if_treat_err_as_bug();
}
@ -1229,6 +938,288 @@ impl DiagCtxt {
}
}
// This `impl` block contains only the public diagnostic creation/emission API.
//
// Functions beginning with `struct_`/`create_` create a diagnostic. Other
// functions create and emit a diagnostic all in one go.
impl DiagCtxt {
// No `#[rustc_lint_diagnostics]` because bug messages aren't user-facing.
#[track_caller]
pub fn struct_bug(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, BugAbort> {
DiagnosticBuilder::new(self, Bug, msg)
}
// No `#[rustc_lint_diagnostics]` because bug messages aren't user-facing.
#[track_caller]
pub fn bug(&self, msg: impl Into<DiagnosticMessage>) -> ! {
self.struct_bug(msg).emit()
}
// No `#[rustc_lint_diagnostics]` because bug messages aren't user-facing.
#[track_caller]
pub fn struct_span_bug(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, BugAbort> {
self.struct_bug(msg).with_span(span)
}
// No `#[rustc_lint_diagnostics]` because bug messages aren't user-facing.
#[track_caller]
pub fn span_bug(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) -> ! {
self.struct_span_bug(span, msg).emit()
}
#[track_caller]
pub fn create_bug<'a>(
&'a self,
bug: impl IntoDiagnostic<'a, BugAbort>,
) -> DiagnosticBuilder<'a, BugAbort> {
bug.into_diagnostic(self, Bug)
}
#[track_caller]
pub fn emit_bug<'a>(&'a self, bug: impl IntoDiagnostic<'a, BugAbort>) -> ! {
self.create_bug(bug).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_fatal(
&self,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, FatalAbort> {
DiagnosticBuilder::new(self, Fatal, msg)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn fatal(&self, msg: impl Into<DiagnosticMessage>) -> ! {
self.struct_fatal(msg).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_span_fatal(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, FatalAbort> {
self.struct_fatal(msg).with_span(span)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn span_fatal(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) -> ! {
self.struct_span_fatal(span, msg).emit()
}
#[track_caller]
pub fn create_fatal<'a>(
&'a self,
fatal: impl IntoDiagnostic<'a, FatalAbort>,
) -> DiagnosticBuilder<'a, FatalAbort> {
fatal.into_diagnostic(self, Fatal)
}
#[track_caller]
pub fn emit_fatal<'a>(&'a self, fatal: impl IntoDiagnostic<'a, FatalAbort>) -> ! {
self.create_fatal(fatal).emit()
}
#[track_caller]
pub fn create_almost_fatal<'a>(
&'a self,
fatal: impl IntoDiagnostic<'a, FatalError>,
) -> DiagnosticBuilder<'a, FatalError> {
fatal.into_diagnostic(self, Fatal)
}
#[track_caller]
pub fn emit_almost_fatal<'a>(
&'a self,
fatal: impl IntoDiagnostic<'a, FatalError>,
) -> FatalError {
self.create_almost_fatal(fatal).emit()
}
// FIXME: This method should be removed (every error should have an associated error code).
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_err(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_> {
DiagnosticBuilder::new(self, Error, msg)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn err(&self, msg: impl Into<DiagnosticMessage>) -> ErrorGuaranteed {
self.struct_err(msg).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_span_err(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_> {
self.struct_err(msg).with_span(span)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn span_err(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> ErrorGuaranteed {
self.struct_span_err(span, msg).emit()
}
#[track_caller]
pub fn create_err<'a>(&'a self, err: impl IntoDiagnostic<'a>) -> DiagnosticBuilder<'a> {
err.into_diagnostic(self, Error)
}
#[track_caller]
pub fn emit_err<'a>(&'a self, err: impl IntoDiagnostic<'a>) -> ErrorGuaranteed {
self.create_err(err).emit()
}
/// Ensures that an error is printed. See `Level::DelayedBug`.
// No `#[rustc_lint_diagnostics]` because bug messages aren't user-facing.
#[track_caller]
pub fn delayed_bug(&self, msg: impl Into<DiagnosticMessage>) -> ErrorGuaranteed {
DiagnosticBuilder::<ErrorGuaranteed>::new(self, DelayedBug, msg).emit()
}
/// Ensures that an error is printed. See `Level::DelayedBug`.
///
/// Note: this function used to be called `delay_span_bug`. It was renamed
/// to match similar functions like `span_err`, `span_warn`, etc.
// No `#[rustc_lint_diagnostics]` because bug messages aren't user-facing.
#[track_caller]
pub fn span_delayed_bug(
&self,
sp: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> ErrorGuaranteed {
DiagnosticBuilder::<ErrorGuaranteed>::new(self, DelayedBug, msg).with_span(sp).emit()
}
/// Ensures that a diagnostic is printed. See `Level::GoodPathDelayedBug`.
// No `#[rustc_lint_diagnostics]` because bug messages aren't user-facing.
#[track_caller]
pub fn good_path_delayed_bug(&self, msg: impl Into<DiagnosticMessage>) {
DiagnosticBuilder::<()>::new(self, GoodPathDelayedBug, msg).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_warn(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Warning, msg)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn warn(&self, msg: impl Into<DiagnosticMessage>) {
self.struct_warn(msg).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_span_warn(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, ()> {
self.struct_warn(msg).with_span(span)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn span_warn(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) {
self.struct_span_warn(span, msg).emit()
}
#[track_caller]
pub fn create_warn<'a>(
&'a self,
warning: impl IntoDiagnostic<'a, ()>,
) -> DiagnosticBuilder<'a, ()> {
warning.into_diagnostic(self, Warning)
}
#[track_caller]
pub fn emit_warn<'a>(&'a self, warning: impl IntoDiagnostic<'a, ()>) {
self.create_warn(warning).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_note(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Note, msg)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn note(&self, msg: impl Into<DiagnosticMessage>) {
self.struct_note(msg).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_span_note(
&self,
span: impl Into<MultiSpan>,
msg: impl Into<DiagnosticMessage>,
) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Note, msg).with_span(span)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn span_note(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) {
self.struct_span_note(span, msg).emit()
}
#[track_caller]
pub fn create_note<'a>(
&'a self,
note: impl IntoDiagnostic<'a, ()>,
) -> DiagnosticBuilder<'a, ()> {
note.into_diagnostic(self, Note)
}
#[track_caller]
pub fn emit_note<'a>(&'a self, note: impl IntoDiagnostic<'a, ()>) {
self.create_note(note).emit()
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_help(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Help, msg)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_allow(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Allow, msg)
}
#[rustc_lint_diagnostics]
#[track_caller]
pub fn struct_expect(
&self,
msg: impl Into<DiagnosticMessage>,
id: LintExpectationId,
) -> DiagnosticBuilder<'_, ()> {
DiagnosticBuilder::new(self, Expect(id), msg)
}
}
// Note: we prefer implementing operations on `DiagCtxt`, rather than
// `DiagCtxtInner`, whenever possible. This minimizes functions where
// `DiagCtxt::foo()` just borrows `inner` and forwards a call to
@ -1236,7 +1227,7 @@ impl DiagCtxt {
impl DiagCtxtInner {
/// Emit all stashed diagnostics.
fn emit_stashed_diagnostics(&mut self) {
let has_errors = self.has_errors();
let has_errors = !self.err_guars.is_empty();
for (_, diag) in std::mem::take(&mut self.stashed_diagnostics).into_iter() {
// Decrement the count tracking the stash; emitting will increment it.
if diag.is_error() {
@ -1298,9 +1289,13 @@ impl DiagCtxtInner {
// when an error is first emitted, also), but maybe there's a case
// in which that's not sound? otherwise this is really inefficient.
let backtrace = std::backtrace::Backtrace::capture();
self.delayed_bugs.push(DelayedDiagnostic::with_backtrace(diagnostic, backtrace));
// This `unchecked_error_guaranteed` is valid. It is where the
// `ErrorGuaranteed` for delayed bugs originates.
#[allow(deprecated)]
return Some(ErrorGuaranteed::unchecked_error_guaranteed());
let guar = ErrorGuaranteed::unchecked_error_guaranteed();
self.delayed_bugs
.push((DelayedDiagnostic::with_backtrace(diagnostic, backtrace), guar));
return Some(guar);
}
GoodPathDelayedBug => {
let backtrace = std::backtrace::Backtrace::capture();
@ -1334,7 +1329,6 @@ impl DiagCtxtInner {
!self.emitted_diagnostics.insert(diagnostic_hash)
};
let level = diagnostic.level;
let is_error = diagnostic.is_error();
let is_lint = diagnostic.is_lint.is_some();
@ -1373,36 +1367,47 @@ impl DiagCtxtInner {
}
if is_error {
// This `unchecked_error_guaranteed` is valid. It is where the
// `ErrorGuaranteed` for errors and lint errors originates.
#[allow(deprecated)]
let guar = ErrorGuaranteed::unchecked_error_guaranteed();
guaranteed = Some(guar);
if is_lint {
self.lint_err_count += 1;
self.lint_err_guars.push(guar);
} else {
self.err_count += 1;
self.err_guars.push(guar);
}
self.panic_if_treat_err_as_bug();
}
#[allow(deprecated)]
if level == Level::Error {
guaranteed = Some(ErrorGuaranteed::unchecked_error_guaranteed());
}
});
guaranteed
}
fn treat_err_as_bug(&self) -> bool {
self.flags.treat_err_as_bug.is_some_and(|c| self.err_count + self.lint_err_count >= c.get())
self.flags
.treat_err_as_bug
.is_some_and(|c| self.err_guars.len() + self.lint_err_guars.len() >= c.get())
}
// Use this one before incrementing `err_count`.
fn treat_next_err_as_bug(&self) -> bool {
self.flags
.treat_err_as_bug
.is_some_and(|c| self.err_count + self.lint_err_count + 1 >= c.get())
.is_some_and(|c| self.err_guars.len() + self.lint_err_guars.len() + 1 >= c.get())
}
fn has_errors(&self) -> bool {
self.err_count > 0
fn has_errors(&self) -> Option<ErrorGuaranteed> {
self.err_guars.get(0).copied()
}
fn has_errors_or_lint_errors(&self) -> Option<ErrorGuaranteed> {
self.has_errors().or_else(|| self.lint_err_guars.get(0).copied())
}
fn has_errors_or_lint_errors_or_delayed_bugs(&self) -> Option<ErrorGuaranteed> {
self.has_errors_or_lint_errors()
.or_else(|| self.delayed_bugs.get(0).map(|(_, guar)| guar).copied())
}
fn failure_note(&mut self, msg: impl Into<DiagnosticMessage>) {
@ -1412,7 +1417,7 @@ impl DiagCtxtInner {
fn flush_delayed(&mut self, kind: DelayedBugKind) {
let (bugs, note1) = match kind {
DelayedBugKind::Normal => (
std::mem::take(&mut self.delayed_bugs),
std::mem::take(&mut self.delayed_bugs).into_iter().map(|(b, _)| b).collect(),
"no errors encountered even though delayed bugs were created",
),
DelayedBugKind::GoodPath => (
@ -1434,7 +1439,7 @@ impl DiagCtxtInner {
{
let _ = write!(
&mut out,
"delayed span bug: {}\n{}\n",
"delayed bug: {}\n{}\n",
bug.inner
.messages
.iter()
@ -1477,7 +1482,7 @@ impl DiagCtxtInner {
fn panic_if_treat_err_as_bug(&self) {
if self.treat_err_as_bug() {
let n = self.flags.treat_err_as_bug.map(|c| c.get()).unwrap();
assert_eq!(n, self.err_count + self.lint_err_count);
assert_eq!(n, self.err_guars.len() + self.lint_err_guars.len());
if n == 1 {
panic!("aborting due to `-Z treat-err-as-bug=1`");
} else {
@ -1584,6 +1589,7 @@ pub enum Level {
ForceWarning(Option<LintExpectationId>),
/// A warning about the code being compiled. Does not prevent compilation from finishing.
/// Will be skipped if `can_emit_warnings` is false.
Warning,
/// A message giving additional context.

2
compiler/rustc_feature/src/builtin_attrs.rs
View File

@ -806,7 +806,7 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
rustc_attr!(TEST, rustc_regions, Normal, template!(Word), WarnFollowing),
rustc_attr!(
TEST, rustc_error, Normal,
template!(Word, List: "span_delayed_bug_from_inside_query"), WarnFollowingWordOnly
template!(Word, List: "delayed_bug_from_inside_query"), WarnFollowingWordOnly
),
rustc_attr!(TEST, rustc_dump_user_args, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_evaluate_where_clauses, Normal, template!(Word), WarnFollowing),

8
compiler/rustc_hir_analysis/src/autoderef.rs
View File

@ -91,10 +91,6 @@ impl<'a, 'tcx> Iterator for Autoderef<'a, 'tcx> {
return None;
};
if new_ty.references_error() {
return None;
}
self.state.steps.push((self.state.cur_ty, kind));
debug!(
"autoderef stage #{:?} is {:?} from {:?}",
@ -137,6 +133,10 @@ impl<'a, 'tcx> Autoderef<'a, 'tcx> {
debug!("overloaded_deref_ty({:?})", ty);
let tcx = self.infcx.tcx;
if ty.references_error() {
return None;
}
// <ty as Deref>
let trait_ref = ty::TraitRef::new(tcx, tcx.lang_items().deref_trait()?, [ty]);
let cause = traits::ObligationCause::misc(self.span, self.body_id);

9
compiler/rustc_hir_analysis/src/check/region.rs
View File

@ -16,7 +16,6 @@ use rustc_index::Idx;
use rustc_middle::middle::region::*;
use rustc_middle::ty::TyCtxt;
use rustc_span::source_map;
use rustc_span::Span;
use super::errs::{maybe_expr_static_mut, maybe_stmt_static_mut};
@ -72,11 +71,7 @@ struct RegionResolutionVisitor<'tcx> {
}
/// Records the lifetime of a local variable as `cx.var_parent`
fn record_var_lifetime(
visitor: &mut RegionResolutionVisitor<'_>,
var_id: hir::ItemLocalId,
_sp: Span,
) {
fn record_var_lifetime(visitor: &mut RegionResolutionVisitor<'_>, var_id: hir::ItemLocalId) {
match visitor.cx.var_parent {
None => {
// this can happen in extern fn declarations like
@ -210,7 +205,7 @@ fn resolve_pat<'tcx>(visitor: &mut RegionResolutionVisitor<'tcx>, pat: &'tcx hir
// If this is a binding then record the lifetime of that binding.
if let PatKind::Binding(..) = pat.kind {
record_var_lifetime(visitor, pat.hir_id.local_id, pat.span);
record_var_lifetime(visitor, pat.hir_id.local_id);
}
debug!("resolve_pat - pre-increment {} pat = {:?}", visitor.expr_and_pat_count, pat);

16
compiler/rustc_hir_analysis/src/check/wfcheck.rs
View File

@ -118,9 +118,9 @@ where
return Err(err);
} else {
// HACK(oli-obk): tests/ui/specialization/min_specialization/specialize_on_type_error.rs
// causes an error (span_delayed_bug) during normalization, without reporting an error,
// so we need to act as if no error happened, in order to let our callers continue and
// report an error later in check_impl_items_against_trait.
// causes an delayed bug during normalization, without reporting an error, so we need
// to act as if no error happened, in order to let our callers continue and report an
// error later in check_impl_items_against_trait.
return Ok(());
}
}
@ -1635,6 +1635,12 @@ fn check_method_receiver<'tcx>(
let receiver_ty = sig.inputs()[0];
let receiver_ty = wfcx.normalize(span, None, receiver_ty);
// If the receiver already has errors reported, consider it valid to avoid
// unnecessary errors (#58712).
if receiver_ty.references_error() {
return Ok(());
}
if tcx.features().arbitrary_self_types {
if !receiver_is_valid(wfcx, span, receiver_ty, self_ty, true) {
// Report error; `arbitrary_self_types` was enabled.
@ -1749,9 +1755,7 @@ fn receiver_is_valid<'tcx>(
}
} else {
debug!("receiver_is_valid: type `{:?}` does not deref to `{:?}`", receiver_ty, self_ty);
// If the receiver already has errors reported due to it, consider it valid to avoid
// unnecessary errors (#58712).
return receiver_ty.references_error();
return false;
}
}

6
compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs
View File

@ -425,9 +425,7 @@ fn check_predicates<'tcx>(
let mut res = Ok(());
for (clause, span) in impl1_predicates {
if !impl2_predicates
.iter()
.any(|pred2| trait_predicates_eq(tcx, clause.as_predicate(), *pred2, span))
if !impl2_predicates.iter().any(|pred2| trait_predicates_eq(clause.as_predicate(), *pred2))
{
res = res.and(check_specialization_on(tcx, clause, span))
}
@ -459,10 +457,8 @@ fn check_predicates<'tcx>(
///
/// So we make that check in this function and try to raise a helpful error message.
fn trait_predicates_eq<'tcx>(
_tcx: TyCtxt<'tcx>,
predicate1: ty::Predicate<'tcx>,
predicate2: ty::Predicate<'tcx>,
_span: Span,
) -> bool {
// FIXME(effects)
predicate1 == predicate2

3
compiler/rustc_hir_typeck/src/expr.rs
View File

@ -346,7 +346,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
}
ExprKind::DropTemps(e) => self.check_expr_with_expectation(e, expected),
ExprKind::Array(args) => self.check_expr_array(args, expected, expr),
ExprKind::ConstBlock(ref block) => self.check_expr_const_block(block, expected, expr),
ExprKind::ConstBlock(ref block) => self.check_expr_const_block(block, expected),
ExprKind::Repeat(element, ref count) => {
self.check_expr_repeat(element, count, expected, expr)
}
@ -1487,7 +1487,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
&self,
block: &'tcx hir::ConstBlock,
expected: Expectation<'tcx>,
_expr: &'tcx hir::Expr<'tcx>,
) -> Ty<'tcx> {
let body = self.tcx.hir().body(block.body);

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

@ -142,7 +142,7 @@ impl<'a, 'tcx> ExprUseVisitor<'a, 'tcx> {
let param_ty = return_if_err!(self.mc.pat_ty_adjusted(param.pat));
debug!("consume_body: param_ty = {:?}", param_ty);
let param_place = self.mc.cat_rvalue(param.hir_id, param.pat.span, param_ty);
let param_place = self.mc.cat_rvalue(param.hir_id, param_ty);
self.walk_irrefutable_pat(&param_place, param.pat);
}

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

@ -273,7 +273,7 @@ impl<'a, 'tcx> MemCategorizationContext<'a, 'tcx> {
deref.region,
ty::TypeAndMut { ty: target, mutbl: deref.mutbl },
);
self.cat_rvalue(expr.hir_id, expr.span, ref_ty)
self.cat_rvalue(expr.hir_id, ref_ty)
} else {
previous()?
};
@ -285,7 +285,7 @@ impl<'a, 'tcx> MemCategorizationContext<'a, 'tcx> {
| adjustment::Adjust::Borrow(_)
| adjustment::Adjust::DynStar => {
// Result is an rvalue.
Ok(self.cat_rvalue(expr.hir_id, expr.span, target))
Ok(self.cat_rvalue(expr.hir_id, target))
}
}
}
@ -374,7 +374,7 @@ impl<'a, 'tcx> MemCategorizationContext<'a, 'tcx> {
| hir::ExprKind::Repeat(..)
| hir::ExprKind::InlineAsm(..)
| hir::ExprKind::OffsetOf(..)
| hir::ExprKind::Err(_) => Ok(self.cat_rvalue(expr.hir_id, expr.span, expr_ty)),
| hir::ExprKind::Err(_) => Ok(self.cat_rvalue(expr.hir_id, expr_ty)),
}
}
@ -396,7 +396,7 @@ impl<'a, 'tcx> MemCategorizationContext<'a, 'tcx> {
| DefKind::AssocFn,
_,
)
| Res::SelfCtor(..) => Ok(self.cat_rvalue(hir_id, span, expr_ty)),
| Res::SelfCtor(..) => Ok(self.cat_rvalue(hir_id, expr_ty)),
Res::Def(DefKind::Static(_), _) => {
Ok(PlaceWithHirId::new(hir_id, expr_ty, PlaceBase::StaticItem, Vec::new()))
@ -433,13 +433,7 @@ impl<'a, 'tcx> MemCategorizationContext<'a, 'tcx> {
}
#[instrument(level = "debug", skip(self), ret)]
pub(crate) fn cat_rvalue(
&self,
hir_id: hir::HirId,
// FIXME: remove
_span: Span,
expr_ty: Ty<'tcx>,
) -> PlaceWithHirId<'tcx> {
pub(crate) fn cat_rvalue(&self, hir_id: hir::HirId, expr_ty: Ty<'tcx>) -> PlaceWithHirId<'tcx> {
PlaceWithHirId::new(hir_id, expr_ty, PlaceBase::Rvalue, Vec::new())
}
@ -487,7 +481,7 @@ impl<'a, 'tcx> MemCategorizationContext<'a, 'tcx> {
};
let ref_ty = Ty::new_ref(self.tcx(), region, ty::TypeAndMut { ty: place_ty, mutbl });
let base = self.cat_rvalue(expr.hir_id, expr.span, ref_ty);
let base = self.cat_rvalue(expr.hir_id, ref_ty);
self.cat_deref(expr, base)
}

2
compiler/rustc_infer/src/infer/canonical/canonicalizer.rs
View File

@ -191,7 +191,7 @@ impl CanonicalizeMode for CanonicalizeQueryResponse {
//
// rust-lang/rust#57464: `impl Trait` can leak local
// scopes (in manner violating typeck). Therefore, use
// `span_delayed_bug` to allow type error over an ICE.
// `delayed_bug` to allow type error over an ICE.
canonicalizer
.tcx
.dcx()

6
compiler/rustc_interface/src/queries.rs
View File

@ -194,16 +194,16 @@ impl<'tcx> Queries<'tcx> {
let Some((def_id, _)) = tcx.entry_fn(()) else { return };
for attr in tcx.get_attrs(def_id, sym::rustc_error) {
match attr.meta_item_list() {
// Check if there is a `#[rustc_error(span_delayed_bug_from_inside_query)]`.
// Check if there is a `#[rustc_error(delayed_bug_from_inside_query)]`.
Some(list)
if list.iter().any(|list_item| {
matches!(
list_item.ident().map(|i| i.name),
Some(sym::span_delayed_bug_from_inside_query)
Some(sym::delayed_bug_from_inside_query)
)
}) =>
{
tcx.ensure().trigger_span_delayed_bug(def_id);
tcx.ensure().trigger_delayed_bug(def_id);
}
// Bare `#[rustc_error]`.

6
compiler/rustc_middle/src/query/mod.rs
View File

@ -108,9 +108,9 @@ pub use plumbing::{IntoQueryParam, TyCtxtAt, TyCtxtEnsure, TyCtxtEnsureWithValue
// Queries marked with `fatal_cycle` do not need the latter implementation,
// as they will raise an fatal error on query cycles instead.
rustc_queries! {
/// This exists purely for testing the interactions between span_delayed_bug and incremental.
query trigger_span_delayed_bug(key: DefId) {
desc { "triggering a span delayed bug for testing incremental" }
/// This exists purely for testing the interactions between delayed bugs and incremental.
query trigger_delayed_bug(key: DefId) {
desc { "triggering a delayed bug for testing incremental" }
}
/// Collects the list of all tools registered using `#![register_tool]`.

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

@ -82,8 +82,8 @@ impl<'tcx> Region<'tcx> {
tcx.intern_region(ty::ReError(reported))
}
/// Constructs a `RegionKind::ReError` region and registers a `span_delayed_bug` to ensure it
/// gets used.
/// Constructs a `RegionKind::ReError` region and registers a delayed bug to ensure it gets
/// used.
#[track_caller]
pub fn new_error_misc(tcx: TyCtxt<'tcx>) -> Region<'tcx> {
Region::new_error_with_message(
@ -93,8 +93,8 @@ impl<'tcx> Region<'tcx> {
)
}
/// Constructs a `RegionKind::ReError` region and registers a `span_delayed_bug` with the given
/// `msg` to ensure it gets used.
/// Constructs a `RegionKind::ReError` region and registers a delayed bug with the given `msg`
/// to ensure it gets used.
#[track_caller]
pub fn new_error_with_message<S: Into<MultiSpan>>(
tcx: TyCtxt<'tcx>,

2
compiler/rustc_middle/src/ty/visit.rs
View File

@ -55,7 +55,7 @@ pub trait TypeVisitableExt<'tcx>: TypeVisitable<TyCtxt<'tcx>> {
}
fn error_reported(&self) -> Result<(), ErrorGuaranteed> {
if self.references_error() {
// We must include lint errors and span delayed bugs here.
// We must include lint errors and delayed bugs here.
if let Some(reported) =
ty::tls::with(|tcx| tcx.dcx().has_errors_or_lint_errors_or_delayed_bugs())
{

12
compiler/rustc_middle/src/util/bug.rs
View File

@ -38,16 +38,16 @@ fn opt_span_bug_fmt<S: Into<MultiSpan>>(
})
}
/// A query to trigger a `span_delayed_bug`. Clearly, if one has a `tcx` one can already trigger a
/// `span_delayed_bug`, so what is the point of this? It exists to help us test `span_delayed_bug`'s
/// interactions with the query system and incremental.
pub fn trigger_span_delayed_bug(tcx: TyCtxt<'_>, key: rustc_hir::def_id::DefId) {
/// A query to trigger a delayed bug. Clearly, if one has a `tcx` one can already trigger a
/// delayed bug, so what is the point of this? It exists to help us test the interaction of delayed
/// bugs with the query system and incremental.
pub fn trigger_delayed_bug(tcx: TyCtxt<'_>, key: rustc_hir::def_id::DefId) {
tcx.dcx().span_delayed_bug(
tcx.def_span(key),
"delayed span bug triggered by #[rustc_error(span_delayed_bug_from_inside_query)]",
"delayed bug triggered by #[rustc_error(delayed_bug_from_inside_query)]",
);
}
pub fn provide(providers: &mut crate::query::Providers) {
*providers = crate::query::Providers { trigger_span_delayed_bug, ..*providers };
*providers = crate::query::Providers { trigger_delayed_bug, ..*providers };
}

4
compiler/rustc_mir_transform/src/coroutine.rs
View File

@ -726,7 +726,7 @@ fn replace_resume_ty_local<'tcx>(
/// The async lowering step and the type / lifetime inference / checking are
/// still using the `resume` argument for the time being. After this transform,
/// the coroutine body doesn't have the `resume` argument.
fn transform_gen_context<'tcx>(_tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
fn transform_gen_context<'tcx>(body: &mut Body<'tcx>) {
// This leaves the local representing the `resume` argument in place,
// but turns it into a regular local variable. This is cheaper than
// adjusting all local references in the body after removing it.
@ -1733,7 +1733,7 @@ impl<'tcx> MirPass<'tcx> for StateTransform {
// Remove the context argument within generator bodies.
if matches!(coroutine_kind, CoroutineKind::Desugared(CoroutineDesugaring::Gen, _)) {
transform_gen_context(tcx, body);
transform_gen_context(body);
}
// The original arguments to the function are no longer arguments, mark them as such.

12
compiler/rustc_mir_transform/src/inline.rs
View File

@ -2,6 +2,7 @@
use crate::deref_separator::deref_finder;
use rustc_attr::InlineAttr;
use rustc_const_eval::transform::validate::validate_types;
use rustc_hir::def::DefKind;
use rustc_hir::def_id::DefId;
use rustc_index::bit_set::BitSet;
use rustc_index::Idx;
@ -384,6 +385,17 @@ impl<'tcx> Inliner<'tcx> {
}
let fn_sig = self.tcx.fn_sig(def_id).instantiate(self.tcx, args);
// Additionally, check that the body that we're inlining actually agrees
// with the ABI of the trait that the item comes from.
if let InstanceDef::Item(instance_def_id) = callee.def
&& self.tcx.def_kind(instance_def_id) == DefKind::AssocFn
&& let instance_fn_sig = self.tcx.fn_sig(instance_def_id).skip_binder()
&& instance_fn_sig.abi() != fn_sig.abi()
{
return None;
}
let source_info = SourceInfo { span: fn_span, ..terminator.source_info };
return Some(CallSite { callee, fn_sig, block: bb, source_info });

15
compiler/rustc_mir_transform/src/instsimplify.rs
View File

@ -29,17 +29,14 @@ impl<'tcx> MirPass<'tcx> for InstSimplify {
ctx.simplify_bool_cmp(&statement.source_info, rvalue);
ctx.simplify_ref_deref(&statement.source_info, rvalue);
ctx.simplify_len(&statement.source_info, rvalue);
ctx.simplify_cast(&statement.source_info, rvalue);
ctx.simplify_cast(rvalue);
}
_ => {}
}
}
ctx.simplify_primitive_clone(block.terminator.as_mut().unwrap(), &mut block.statements);
ctx.simplify_intrinsic_assert(
block.terminator.as_mut().unwrap(),
&mut block.statements,
);
ctx.simplify_intrinsic_assert(block.terminator.as_mut().unwrap());
ctx.simplify_nounwind_call(block.terminator.as_mut().unwrap());
simplify_duplicate_switch_targets(block.terminator.as_mut().unwrap());
}
@ -143,7 +140,7 @@ impl<'tcx> InstSimplifyContext<'tcx, '_> {
}
}
fn simplify_cast(&self, _source_info: &SourceInfo, rvalue: &mut Rvalue<'tcx>) {
fn simplify_cast(&self, rvalue: &mut Rvalue<'tcx>) {
if let Rvalue::Cast(kind, operand, cast_ty) = rvalue {
let operand_ty = operand.ty(self.local_decls, self.tcx);
if operand_ty == *cast_ty {
@ -277,11 +274,7 @@ impl<'tcx> InstSimplifyContext<'tcx, '_> {
}
}
fn simplify_intrinsic_assert(
&self,
terminator: &mut Terminator<'tcx>,
_statements: &mut Vec<Statement<'tcx>>,
) {
fn simplify_intrinsic_assert(&self, terminator: &mut Terminator<'tcx>) {
let TerminatorKind::Call { func, target, .. } = &mut terminator.kind else {
return;
};

4
compiler/rustc_passes/src/check_attr.rs
View File

@ -197,7 +197,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
| sym::unstable
| sym::stable
| sym::rustc_allowed_through_unstable_modules
| sym::rustc_promotable => self.check_stability_promotable(attr, span, target),
| sym::rustc_promotable => self.check_stability_promotable(attr, target),
sym::link_ordinal => self.check_link_ordinal(attr, span, target),
sym::rustc_confusables => self.check_confusables(attr, target),
sym::rustc_safe_intrinsic => {
@ -2099,7 +2099,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
}
}
fn check_stability_promotable(&self, attr: &Attribute, _span: Span, target: Target) -> bool {
fn check_stability_promotable(&self, attr: &Attribute, target: Target) -> bool {
match target {
Target::Expression => {
self.dcx().emit_err(errors::StabilityPromotable { attr_span: attr.span });

2
compiler/rustc_span/src/symbol.rs
View File

@ -656,6 +656,7 @@ symbols! {
default_method_body_is_const,
default_type_parameter_fallback,
default_type_params,
delayed_bug_from_inside_query,
deny,
deprecated,
deprecated_safe,
@ -1580,7 +1581,6 @@ symbols! {
slice_patterns,
slicing_syntax,
soft,
span_delayed_bug_from_inside_query,
specialization,
speed,
spotlight,

14
compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs
View File

@ -261,12 +261,7 @@ fn encode_predicates<'tcx>(
}
/// Encodes a region using the Itanium C++ ABI as a vendor extended type.
fn encode_region<'tcx>(
_tcx: TyCtxt<'tcx>,
region: Region<'tcx>,
dict: &mut FxHashMap<DictKey<'tcx>, usize>,
_options: EncodeTyOptions,
) -> String {
fn encode_region<'tcx>(region: Region<'tcx>, dict: &mut FxHashMap<DictKey<'tcx>, usize>) -> String {
// u6region[I[<region-disambiguator>][<region-index>]E] as vendor extended type
let mut s = String::new();
match region.kind() {
@ -314,7 +309,7 @@ fn encode_args<'tcx>(
for arg in args {
match arg.unpack() {
GenericArgKind::Lifetime(region) => {
s.push_str(&encode_region(tcx, region, dict, options));
s.push_str(&encode_region(region, dict));
}
GenericArgKind::Type(ty) => {
s.push_str(&encode_ty(tcx, ty, dict, options));
@ -704,7 +699,7 @@ fn encode_ty<'tcx>(
ty::DynStar => "u7dynstarI",
});
s.push_str(&encode_predicates(tcx, predicates, dict, options));
s.push_str(&encode_region(tcx, *region, dict, options));
s.push_str(&encode_region(*region, dict));
s.push('E');
compress(dict, DictKey::Ty(ty, TyQ::None), &mut s);
typeid.push_str(&s);
@ -736,7 +731,6 @@ fn encode_ty<'tcx>(
fn transform_predicates<'tcx>(
tcx: TyCtxt<'tcx>,
predicates: &List<ty::PolyExistentialPredicate<'tcx>>,
_options: EncodeTyOptions,
) -> &'tcx List<ty::PolyExistentialPredicate<'tcx>> {
let predicates: Vec<ty::PolyExistentialPredicate<'tcx>> = predicates
.iter()
@ -968,7 +962,7 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio
ty::Dynamic(predicates, _region, kind) => {
ty = Ty::new_dynamic(
tcx,
transform_predicates(tcx, predicates, options),
transform_predicates(tcx, predicates),
tcx.lifetimes.re_erased,
*kind,
);

8
compiler/rustc_trait_selection/src/solve/assembly/mod.rs
View File

@ -15,7 +15,7 @@ use rustc_middle::ty::fast_reject::{SimplifiedType, TreatParams};
use rustc_middle::ty::{self, Ty, TyCtxt};
use rustc_middle::ty::{fast_reject, TypeFoldable};
use rustc_middle::ty::{ToPredicate, TypeVisitableExt};
use rustc_span::ErrorGuaranteed;
use rustc_span::{ErrorGuaranteed, DUMMY_SP};
use std::fmt::Debug;
pub(super) mod structural_traits;
@ -612,7 +612,11 @@ impl<'tcx> EvalCtxt<'_, 'tcx> {
ty::Alias(kind @ (ty::Projection | ty::Opaque), alias_ty) => (kind, alias_ty),
ty::Alias(ty::Inherent | ty::Weak, _) => {
unreachable!("Weak and Inherent aliases should have been normalized away already")
self.tcx().sess.dcx().span_delayed_bug(
DUMMY_SP,
format!("could not normalize {self_ty}, it is not WF"),
);
return;
}
};

6
compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs
View File

@ -615,8 +615,6 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
let UnsatisfiedConst(unsatisfied_const) = self
.maybe_add_note_for_unsatisfied_const(
&obligation,
trait_ref,
&trait_predicate,
&mut err,
span,
@ -1480,8 +1478,6 @@ pub(super) trait InferCtxtPrivExt<'tcx> {
fn maybe_add_note_for_unsatisfied_const(
&self,
obligation: &PredicateObligation<'tcx>,
trait_ref: ty::PolyTraitRef<'tcx>,
trait_predicate: &ty::PolyTraitPredicate<'tcx>,
err: &mut Diagnostic,
span: Span,
@ -3359,8 +3355,6 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
fn maybe_add_note_for_unsatisfied_const(
&self,
_obligation: &PredicateObligation<'tcx>,
_trait_ref: ty::PolyTraitRef<'tcx>,
_trait_predicate: &ty::PolyTraitPredicate<'tcx>,
_err: &mut Diagnostic,
_span: Span,

213
library/alloc/src/collections/btree/map.rs
View File

@ -2522,10 +2522,17 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
self.len() == 0
}
/// Returns a [`Cursor`] pointing to the first gap above the given bound.
/// Returns a [`Cursor`] pointing at the gap before the smallest key
/// greater than the given bound.
///
/// Passing [`Bound::Unbounded`] will return a cursor pointing to the start
/// of the map.
/// Passing `Bound::Included(x)` will return a cursor pointing to the
/// gap before the smallest key greater than or equal to `x`.
///
/// Passing `Bound::Excluded(x)` will return a cursor pointing to the
/// gap before the smallest key greater than `x`.
///
/// Passing `Bound::Unbounded` will return a cursor pointing to the
/// gap before the smallest key in the map.
///
/// # Examples
///
@ -2535,17 +2542,24 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// use std::collections::BTreeMap;
/// use std::ops::Bound;
///
/// let mut a = BTreeMap::new();
/// a.insert(1, "a");
/// a.insert(2, "b");
/// a.insert(3, "c");
/// a.insert(4, "d");
/// let cursor = a.lower_bound(Bound::Included(&2));
/// let map = BTreeMap::from([
/// (1, "a"),
/// (2, "b"),
/// (3, "c"),
/// (4, "d"),
/// ]);
///
/// let cursor = map.lower_bound(Bound::Included(&2));
/// assert_eq!(cursor.peek_prev(), Some((&1, &"a")));
/// assert_eq!(cursor.peek_next(), Some((&2, &"b")));
/// let cursor = a.lower_bound(Bound::Excluded(&2));
///
/// let cursor = map.lower_bound(Bound::Excluded(&2));
/// assert_eq!(cursor.peek_prev(), Some((&2, &"b")));
/// assert_eq!(cursor.peek_next(), Some((&3, &"c")));
///
/// let cursor = map.lower_bound(Bound::Unbounded);
/// assert_eq!(cursor.peek_prev(), None);
/// assert_eq!(cursor.peek_next(), Some((&1, &"a")));
/// ```
#[unstable(feature = "btree_cursors", issue = "107540")]
pub fn lower_bound<Q: ?Sized>(&self, bound: Bound<&Q>) -> Cursor<'_, K, V>
@ -2561,11 +2575,17 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
Cursor { current: Some(edge), root: self.root.as_ref() }
}
/// Returns a [`CursorMut`] pointing to the first gap above the given bound.
/// Returns a [`CursorMut`] pointing at the gap before the smallest key
/// greater than the given bound.
///
/// Passing `Bound::Included(x)` will return a cursor pointing to the
/// gap before the smallest key greater than or equal to `x`.
///
/// Passing [`Bound::Unbounded`] will return a cursor pointing to the start
/// of the map.
/// Passing `Bound::Excluded(x)` will return a cursor pointing to the
/// gap before the smallest key greater than `x`.
///
/// Passing `Bound::Unbounded` will return a cursor pointing to the
/// gap before the smallest key in the map.
///
/// # Examples
///
@ -2575,17 +2595,24 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// use std::collections::BTreeMap;
/// use std::ops::Bound;
///
/// let mut a = BTreeMap::new();
/// a.insert(1, "a");
/// a.insert(2, "b");
/// a.insert(3, "c");
/// a.insert(4, "d");
/// let mut cursor = a.lower_bound_mut(Bound::Included(&2));
/// let mut map = BTreeMap::from([
/// (1, "a"),
/// (2, "b"),
/// (3, "c"),
/// (4, "d"),
/// ]);
///
/// let mut cursor = map.lower_bound_mut(Bound::Included(&2));
/// assert_eq!(cursor.peek_prev(), Some((&1, &mut "a")));
/// assert_eq!(cursor.peek_next(), Some((&2, &mut "b")));
/// let mut cursor = a.lower_bound_mut(Bound::Excluded(&2));
///
/// let mut cursor = map.lower_bound_mut(Bound::Excluded(&2));
/// assert_eq!(cursor.peek_prev(), Some((&2, &mut "b")));
/// assert_eq!(cursor.peek_next(), Some((&3, &mut "c")));
///
/// let mut cursor = map.lower_bound_mut(Bound::Unbounded);
/// assert_eq!(cursor.peek_prev(), None);
/// assert_eq!(cursor.peek_next(), Some((&1, &mut "a")));
/// ```
#[unstable(feature = "btree_cursors", issue = "107540")]
pub fn lower_bound_mut<Q: ?Sized>(&mut self, bound: Bound<&Q>) -> CursorMut<'_, K, V, A>
@ -2618,10 +2645,17 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
}
}
/// Returns a [`Cursor`] pointing at the last gap below the given bound.
/// Returns a [`Cursor`] pointing at the gap after the greatest key
/// smaller than the given bound.
///
/// Passing [`Bound::Unbounded`] will return a cursor pointing to the end
/// of the map.
/// Passing `Bound::Included(x)` will return a cursor pointing to the
/// gap after the greatest key smaller than or equal to `x`.
///
/// Passing `Bound::Excluded(x)` will return a cursor pointing to the
/// gap after the greatest key smaller than `x`.
///
/// Passing `Bound::Unbounded` will return a cursor pointing to the
/// gap after the greatest key in the map.
///
/// # Examples
///
@ -2631,17 +2665,24 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// use std::collections::BTreeMap;
/// use std::ops::Bound;
///
/// let mut a = BTreeMap::new();
/// a.insert(1, "a");
/// a.insert(2, "b");
/// a.insert(3, "c");
/// a.insert(4, "d");
/// let cursor = a.upper_bound(Bound::Included(&3));
/// let map = BTreeMap::from([
/// (1, "a"),
/// (2, "b"),
/// (3, "c"),
/// (4, "d"),
/// ]);
///
/// let cursor = map.upper_bound(Bound::Included(&3));
/// assert_eq!(cursor.peek_prev(), Some((&3, &"c")));
/// assert_eq!(cursor.peek_next(), Some((&4, &"d")));
/// let cursor = a.upper_bound(Bound::Excluded(&3));
///
/// let cursor = map.upper_bound(Bound::Excluded(&3));
/// assert_eq!(cursor.peek_prev(), Some((&2, &"b")));
/// assert_eq!(cursor.peek_next(), Some((&3, &"c")));
///
/// let cursor = map.upper_bound(Bound::Unbounded);
/// assert_eq!(cursor.peek_prev(), Some((&4, &"d")));
/// assert_eq!(cursor.peek_next(), None);
/// ```
#[unstable(feature = "btree_cursors", issue = "107540")]
pub fn upper_bound<Q: ?Sized>(&self, bound: Bound<&Q>) -> Cursor<'_, K, V>
@ -2657,10 +2698,17 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
Cursor { current: Some(edge), root: self.root.as_ref() }
}
/// Returns a [`CursorMut`] pointing at the last gap below the given bound.
/// Returns a [`CursorMut`] pointing at the gap after the greatest key
/// smaller than the given bound.
///
/// Passing [`Bound::Unbounded`] will return a cursor pointing to the end
/// of the map.
/// Passing `Bound::Included(x)` will return a cursor pointing to the
/// gap after the greatest key smaller than or equal to `x`.
///
/// Passing `Bound::Excluded(x)` will return a cursor pointing to the
/// gap after the greatest key smaller than `x`.
///
/// Passing `Bound::Unbounded` will return a cursor pointing to the
/// gap after the greatest key in the map.
///
/// # Examples
///
@ -2670,17 +2718,24 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// use std::collections::BTreeMap;
/// use std::ops::Bound;
///
/// let mut a = BTreeMap::new();
/// a.insert(1, "a");
/// a.insert(2, "b");
/// a.insert(3, "c");
/// a.insert(4, "d");
/// let mut cursor = a.upper_bound_mut(Bound::Included(&3));
/// let mut map = BTreeMap::from([
/// (1, "a"),
/// (2, "b"),
/// (3, "c"),
/// (4, "d"),
/// ]);
///
/// let mut cursor = map.upper_bound_mut(Bound::Included(&3));
/// assert_eq!(cursor.peek_prev(), Some((&3, &mut "c")));
/// assert_eq!(cursor.peek_next(), Some((&4, &mut "d")));
/// let mut cursor = a.upper_bound_mut(Bound::Excluded(&3));
///
/// let mut cursor = map.upper_bound_mut(Bound::Excluded(&3));
/// assert_eq!(cursor.peek_prev(), Some((&2, &mut "b")));
/// assert_eq!(cursor.peek_next(), Some((&3, &mut "c")));
///
/// let mut cursor = map.upper_bound_mut(Bound::Unbounded);
/// assert_eq!(cursor.peek_prev(), Some((&4, &mut "d")));
/// assert_eq!(cursor.peek_next(), None);
/// ```
#[unstable(feature = "btree_cursors", issue = "107540")]
pub fn upper_bound_mut<Q: ?Sized>(&mut self, bound: Bound<&Q>) -> CursorMut<'_, K, V, A>
@ -3040,8 +3095,8 @@ impl<'a, K, V, A> CursorMutKey<'a, K, V, A> {
// Now the tree editing operations
impl<'a, K: Ord, V, A: Allocator + Clone> CursorMutKey<'a, K, V, A> {
/// Inserts a new element into the `BTreeMap` in the gap that the
/// `CursorMutKey` is currently pointing to.
/// Inserts a new key-value pair into the map in the gap that the
/// cursor is currently pointing to.
///
/// After the insertion the cursor will be pointing at the gap before the
/// newly inserted element.
@ -3083,8 +3138,8 @@ impl<'a, K: Ord, V, A: Allocator + Clone> CursorMutKey<'a, K, V, A> {
*self.length += 1;
}
/// Inserts a new element into the `BTreeMap` in the gap that the
/// `CursorMutKey` is currently pointing to.
/// Inserts a new key-value pair into the map in the gap that the
/// cursor is currently pointing to.
///
/// After the insertion the cursor will be pointing at the gap after the
/// newly inserted element.
@ -3129,19 +3184,16 @@ impl<'a, K: Ord, V, A: Allocator + Clone> CursorMutKey<'a, K, V, A> {
*self.length += 1;
}
/// Inserts a new element into the `BTreeMap` in the gap that the
/// `CursorMutKey` is currently pointing to.
/// Inserts a new key-value pair into the map in the gap that the
/// cursor is currently pointing to.
///
/// After the insertion the cursor will be pointing at the gap before the
/// newly inserted element.
///
/// # Panics
///
/// This function panics if:
/// - the given key compares less than or equal to the current element (if
/// any).
/// - the given key compares greater than or equal to the next element (if
/// any).
/// If the inserted key is not greater than the key before the cursor
/// (if any), or if it not less than the key after the cursor (if any),
/// then an [`UnorderedKeyError`] is returned since this would
/// invalidate the [`Ord`] invariant between the keys of the map.
#[unstable(feature = "btree_cursors", issue = "107540")]
pub fn insert_after(&mut self, key: K, value: V) -> Result<(), UnorderedKeyError> {
if let Some((prev, _)) = self.peek_prev() {
@ -3160,19 +3212,16 @@ impl<'a, K: Ord, V, A: Allocator + Clone> CursorMutKey<'a, K, V, A> {
Ok(())
}
/// Inserts a new element into the `BTreeMap` in the gap that the
/// `CursorMutKey` is currently pointing to.
/// Inserts a new key-value pair into the map in the gap that the
/// cursor is currently pointing to.
///
/// After the insertion the cursor will be pointing at the gap after the
/// newly inserted element.
///
/// # Panics
///
/// This function panics if:
/// - the given key compares greater than or equal to the current element
/// (if any).
/// - the given key compares less than or equal to the previous element (if
/// any).
/// If the inserted key is not greater than the key before the cursor
/// (if any), or if it not less than the key after the cursor (if any),
/// then an [`UnorderedKeyError`] is returned since this would
/// invalidate the [`Ord`] invariant between the keys of the map.
#[unstable(feature = "btree_cursors", issue = "107540")]
pub fn insert_before(&mut self, key: K, value: V) -> Result<(), UnorderedKeyError> {
if let Some((prev, _)) = self.peek_prev() {
@ -3239,10 +3288,10 @@ impl<'a, K: Ord, V, A: Allocator + Clone> CursorMutKey<'a, K, V, A> {
}
impl<'a, K: Ord, V, A: Allocator + Clone> CursorMut<'a, K, V, A> {
/// Inserts a new element into the `BTreeMap` in the gap that the
/// `CursorMut` is currently pointing to.
/// Inserts a new key-value pair into the map in the gap that the
/// cursor is currently pointing to.
///
/// After the insertion the cursor will be pointing at the gap before the
/// After the insertion the cursor will be pointing at the gap after the
/// newly inserted element.
///
/// # Safety
@ -3257,8 +3306,8 @@ impl<'a, K: Ord, V, A: Allocator + Clone> CursorMut<'a, K, V, A> {
unsafe { self.inner.insert_after_unchecked(key, value) }
}
/// Inserts a new element into the `BTreeMap` in the gap that the
/// `CursorMut` is currently pointing to.
/// Inserts a new key-value pair into the map in the gap that the
/// cursor is currently pointing to.
///
/// After the insertion the cursor will be pointing at the gap after the
/// newly inserted element.
@ -3275,37 +3324,31 @@ impl<'a, K: Ord, V, A: Allocator + Clone> CursorMut<'a, K, V, A> {
unsafe { self.inner.insert_before_unchecked(key, value) }
}
/// Inserts a new element into the `BTreeMap` in the gap that the
/// `CursorMut` is currently pointing to.
/// Inserts a new key-value pair into the map in the gap that the
/// cursor is currently pointing to.
///
/// After the insertion the cursor will be pointing at the gap before the
/// newly inserted element.
///
/// # Panics
///
/// This function panics if:
/// - the given key compares less than or equal to the current element (if
/// any).
/// - the given key compares greater than or equal to the next element (if
/// any).
/// If the inserted key is not greater than the key before the cursor
/// (if any), or if it not less than the key after the cursor (if any),
/// then an [`UnorderedKeyError`] is returned since this would
/// invalidate the [`Ord`] invariant between the keys of the map.
#[unstable(feature = "btree_cursors", issue = "107540")]
pub fn insert_after(&mut self, key: K, value: V) -> Result<(), UnorderedKeyError> {
self.inner.insert_after(key, value)
}
/// Inserts a new element into the `BTreeMap` in the gap that the
/// `CursorMut` is currently pointing to.
/// Inserts a new key-value pair into the map in the gap that the
/// cursor is currently pointing to.
///
/// After the insertion the cursor will be pointing at the gap after the
/// newly inserted element.
///
/// # Panics
///
/// This function panics if:
/// - the given key compares greater than or equal to the current element
/// (if any).
/// - the given key compares less than or equal to the previous element (if
/// any).
/// If the inserted key is not greater than the key before the cursor
/// (if any), or if it not less than the key after the cursor (if any),
/// then an [`UnorderedKeyError`] is returned since this would
/// invalidate the [`Ord`] invariant between the keys of the map.
#[unstable(feature = "btree_cursors", issue = "107540")]
pub fn insert_before(&mut self, key: K, value: V) -> Result<(), UnorderedKeyError> {
self.inner.insert_before(key, value)

4
src/librustdoc/clean/mod.rs
View File

@ -1840,7 +1840,9 @@ fn maybe_expand_private_type_alias<'tcx>(
}
}
Some(cx.enter_alias(args, def_id.to_def_id(), |cx| clean_ty(&ty, cx)))
Some(cx.enter_alias(args, def_id.to_def_id(), |cx| {
cx.with_param_env(def_id.to_def_id(), |cx| clean_ty(&ty, cx))
}))
}
pub(crate) fn clean_ty<'tcx>(ty: &hir::Ty<'tcx>, cx: &mut DocContext<'tcx>) -> Type {

2
src/tools/clippy/tests/integration.rs
View File

@ -77,7 +77,7 @@ fn integration_test() {
// the repo basically just contains a span_delayed_bug that forces rustc/clippy to panic:
/*
#![feature(rustc_attrs)]
#[rustc_error(span_delayed_bug_from_inside_query)]
#[rustc_error(delayed_bug_from_inside_query)]
fn main() {}
*/

2
src/tools/rust-analyzer/crates/hir-def/src/attr/builtin.rs
View File

@ -650,7 +650,7 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[
rustc_attr!(TEST, rustc_regions, Normal, template!(Word), WarnFollowing),
rustc_attr!(
TEST, rustc_error, Normal,
template!(Word, List: "span_delayed_bug_from_inside_query"), WarnFollowingWordOnly
template!(Word, List: "delayed_bug_from_inside_query"), WarnFollowingWordOnly
),
rustc_attr!(TEST, rustc_dump_user_args, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_evaluate_where_clauses, Normal, template!(Word), WarnFollowing),

4
tests/incremental/delayed_span_bug.rs
View File

@ -1,8 +1,8 @@
// revisions: cfail1 cfail2
// should-ice
// error-pattern: delayed span bug triggered by #[rustc_error(span_delayed_bug_from_inside_query)]
// error-pattern: delayed bug triggered by #[rustc_error(delayed_bug_from_inside_query)]
#![feature(rustc_attrs)]
#[rustc_error(span_delayed_bug_from_inside_query)]
#[rustc_error(delayed_bug_from_inside_query)]
fn main() {}

14
tests/rustdoc-ui/normalize-in-inlined-type-alias.rs Normal file
View File

@ -0,0 +1,14 @@
// check-pass
// compile-flags: -Znormalize-docs
trait Woo<T> {
type Assoc;
}
impl<T> Woo<T> for () {
type Assoc = ();
}
type Alias<P> = <() as Woo<P>>::Assoc;
pub fn hello<S>() -> Alias<S> {}

19
tests/ui/coercion/type-errors.rs
View File

@ -1,15 +1,26 @@
// Regression test for an ICE: https://github.com/rust-lang/rust/issues/120884
// Test that we don't ICE for coercions with type errors.
// We still need to properly go through coercions between types with errors instead of
// shortcutting and returning success, because we need the adjustments for building the MIR.
pub fn has_error() -> TypeError {}
//~^ ERROR cannot find type `TypeError` in this scope
// https://github.com/rust-lang/rust/issues/120884
// Casting a function item to a data pointer in valid in HIR, but invalid in MIR.
// We need an adjustment (ReifyFnPointer) to insert a cast from the function item
// to a function pointer as a separate MIR statement.
pub fn cast() -> *const u8 {
// Casting a function item to a data pointer in valid in HIR, but invalid in MIR.
// We need an adjustment (ReifyFnPointer) to insert a cast from the function item
// to a function pointer as a separate MIR statement.
has_error as *const u8
}
// https://github.com/rust-lang/rust/issues/120945
// This one ICEd, because we skipped the builtin deref from `&TypeError` to `TypeError`.
pub fn autoderef_source(e: &TypeError) {
//~^ ERROR cannot find type `TypeError` in this scope
autoderef_target(e)
}
pub fn autoderef_target(_: &TypeError) {}
//~^ ERROR cannot find type `TypeError` in this scope
fn main() {}

14
tests/ui/coercion/type-errors.stderr
View File

@ -4,6 +4,18 @@ error[E0412]: cannot find type `TypeError` in this scope
LL | pub fn has_error() -> TypeError {}
| ^^^^^^^^^ not found in this scope
error: aborting due to 1 previous error
error[E0412]: cannot find type `TypeError` in this scope
--> $DIR/type-errors.rs:18:29
|
LL | pub fn autoderef_source(e: &TypeError) {
| ^^^^^^^^^ not found in this scope
error[E0412]: cannot find type `TypeError` in this scope
--> $DIR/type-errors.rs:23:29
|
LL | pub fn autoderef_target(_: &TypeError) {}
| ^^^^^^^^^ not found in this scope
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0412`.

1
tests/ui/consts/issue-17718-const-bad-values.rs
View File

@ -4,7 +4,6 @@ const C1: &'static mut [usize] = &mut [];
static mut S: usize = 3;
const C2: &'static mut usize = unsafe { &mut S };
//~^ ERROR: referencing statics in constants
//~| ERROR: referencing statics in constants
//~| WARN mutable reference of mutable static is discouraged [static_mut_ref]
fn main() {}

15
tests/ui/consts/issue-17718-const-bad-values.stderr
View File

@ -31,20 +31,7 @@ LL | const C2: &'static mut usize = unsafe { &mut S };
= 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.
error[E0658]: referencing statics in constants is unstable
--> $DIR/issue-17718-const-bad-values.rs:5:46
|
LL | const C2: &'static mut usize = unsafe { &mut S };
| ^
|
= note: see issue #119618 <https://github.com/rust-lang/rust/issues/119618> for more information
= help: add `#![feature(const_refs_to_static)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
= 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.
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: aborting due to 3 previous errors; 1 warning emitted
error: aborting due to 2 previous errors; 1 warning emitted
Some errors have detailed explanations: E0658, E0764.
For more information about an error, try `rustc --explain E0658`.

5
tests/ui/consts/miri_unleashed/const_refers_to_static.32bit.stderr
View File

@ -49,11 +49,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | const READ_MUT: u32 = unsafe { MUTABLE };
| ^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static.rs:18:32
|
LL | const READ_MUT: u32 = unsafe { MUTABLE };
| ^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static.rs:24:18
|

5
tests/ui/consts/miri_unleashed/const_refers_to_static.64bit.stderr
View File

@ -49,11 +49,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | const READ_MUT: u32 = unsafe { MUTABLE };
| ^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static.rs:18:32
|
LL | const READ_MUT: u32 = unsafe { MUTABLE };
| ^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static.rs:24:18
|

35
tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.32bit.stderr
View File

@ -83,21 +83,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | unsafe { &static_cross_crate::ZERO }
| ^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:12:15
|
LL | unsafe { &static_cross_crate::ZERO }
| ^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:18:15
|
LL | unsafe { &static_cross_crate::ZERO[0] }
| ^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:18:15
|
LL | unsafe { &static_cross_crate::ZERO[0] }
| ^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:18:15
|
@ -113,26 +98,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:28:15
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:28:15
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:28:15
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:28:15
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 8 previous errors; 2 warnings emitted

35
tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.64bit.stderr
View File

@ -83,21 +83,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | unsafe { &static_cross_crate::ZERO }
| ^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:12:15
|
LL | unsafe { &static_cross_crate::ZERO }
| ^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:18:15
|
LL | unsafe { &static_cross_crate::ZERO[0] }
| ^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:18:15
|
LL | unsafe { &static_cross_crate::ZERO[0] }
| ^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:18:15
|
@ -113,26 +98,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:28:15
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:28:15
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:28:15
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/const_refers_to_static_cross_crate.rs:28:15
|
LL | match static_cross_crate::OPT_ZERO {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 8 previous errors; 2 warnings emitted

15
tests/ui/consts/miri_unleashed/mutable_references_err.32bit.stderr
View File

@ -114,11 +114,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | const SUBTLE: &mut i32 = unsafe { &mut FOO };
| ^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/mutable_references_err.rs:32:40
|
LL | const SUBTLE: &mut i32 = unsafe { &mut FOO };
| ^^^
help: skipping check that does not even have a feature gate
--> $DIR/mutable_references_err.rs:32:35
|
@ -144,16 +139,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE };
| ^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/mutable_references_err.rs:47:44
|
LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE };
| ^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/mutable_references_err.rs:51:45
|
LL | const POINTS_TO_MUTABLE2: &i32 = unsafe { &*MUTABLE_REF };
| ^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/mutable_references_err.rs:51:45
|

15
tests/ui/consts/miri_unleashed/mutable_references_err.64bit.stderr
View File

@ -114,11 +114,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | const SUBTLE: &mut i32 = unsafe { &mut FOO };
| ^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/mutable_references_err.rs:32:40
|
LL | const SUBTLE: &mut i32 = unsafe { &mut FOO };
| ^^^
help: skipping check that does not even have a feature gate
--> $DIR/mutable_references_err.rs:32:35
|
@ -144,16 +139,6 @@ help: skipping check for `const_refs_to_static` feature
|
LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE };
| ^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/mutable_references_err.rs:47:44
|
LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE };
| ^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/mutable_references_err.rs:51:45
|
LL | const POINTS_TO_MUTABLE2: &i32 = unsafe { &*MUTABLE_REF };
| ^^^^^^^^^^^
help: skipping check for `const_refs_to_static` feature
--> $DIR/mutable_references_err.rs:51:45
|

1
tests/ui/feature-gates/feature-gate-const-refs-to-static.rs
View File

@ -6,7 +6,6 @@ const C1_READ: () = {
assert!(*C1 == 0);
};
const C2: *const i32 = unsafe { std::ptr::addr_of!(S_MUT) }; //~ERROR: referencing statics in constants is unstable
//~^ERROR: referencing statics in constants is unstable
fn main() {
}

15
tests/ui/feature-gates/feature-gate-const-refs-to-static.stderr
View File

@ -22,19 +22,6 @@ LL | const C2: *const i32 = unsafe { std::ptr::addr_of!(S_MUT) };
= 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.
error[E0658]: referencing statics in constants is unstable
--> $DIR/feature-gate-const-refs-to-static.rs:8:52
|
LL | const C2: *const i32 = unsafe { std::ptr::addr_of!(S_MUT) };
| ^^^^^
|
= note: see issue #119618 <https://github.com/rust-lang/rust/issues/119618> for more information
= help: add `#![feature(const_refs_to_static)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
= 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.
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: aborting due to 3 previous errors
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0658`.

19
tests/ui/impl-trait/in-trait/alias-bounds-when-not-wf.rs Normal file
View File

@ -0,0 +1,19 @@
// compile-flags: -Znext-solver
#![feature(lazy_type_alias)]
//~^ WARN the feature `lazy_type_alias` is incomplete
trait Foo {}
type A<T: Foo> = T;
struct W<T>(T);
// For `W<A<usize>>` to be WF, `A<usize>: Sized` must hold. However, when assembling
// alias bounds for `A<usize>`, we try to normalize it, but it doesn't hold because
// `usize: Foo` doesn't hold. Therefore we ICE, because we don't expect to still
// encounter weak types in `assemble_alias_bound_candidates_recur`.
fn hello(_: W<A<usize>>) {}
//~^ ERROR the type `W<A<usize>>` is not well-formed
fn main() {}

17
tests/ui/impl-trait/in-trait/alias-bounds-when-not-wf.stderr Normal file
View File

@ -0,0 +1,17 @@
warning: the feature `lazy_type_alias` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/alias-bounds-when-not-wf.rs:3:12
|
LL | #![feature(lazy_type_alias)]
| ^^^^^^^^^^^^^^^
|
= note: see issue #112792 <https://github.com/rust-lang/rust/issues/112792> for more information
= note: `#[warn(incomplete_features)]` on by default
error: the type `W<A<usize>>` is not well-formed
--> $DIR/alias-bounds-when-not-wf.rs:16:13
|
LL | fn hello(_: W<A<usize>>) {}
| ^^^^^^^^^^^
error: aborting due to 1 previous error; 1 warning emitted

32
tests/ui/mir/inline-wrong-abi.rs Normal file
View File

@ -0,0 +1,32 @@
// compile-flags: -Zpolymorphize=on -Zinline-mir=yes -Zmir-opt-level=0
#![feature(fn_traits, unboxed_closures)]
struct Foo<T>(T);
impl<T: Copy> Fn<()> for Foo<T> {
extern "C" fn call(&self, _: ()) -> T {
//~^ ERROR method `call` has an incompatible type for trait
match *self {
Foo(t) => t,
}
}
}
impl<T: Copy> FnMut<()> for Foo<T> {
extern "rust-call" fn call_mut(&mut self, _: ()) -> T {
self.call(())
}
}
impl<T: Copy> FnOnce<()> for Foo<T> {
type Output = T;
extern "rust-call" fn call_once(self, _: ()) -> T {
self.call(())
}
}
fn main() {
let t: u8 = 1;
println!("{}", Foo(t)());
}

12
tests/ui/mir/inline-wrong-abi.stderr Normal file
View File

@ -0,0 +1,12 @@
error[E0053]: method `call` has an incompatible type for trait
--> $DIR/inline-wrong-abi.rs:7:5
|
LL | extern "C" fn call(&self, _: ()) -> T {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected "rust-call" fn, found "C" fn
|
= note: expected signature `extern "rust-call" fn(&Foo<_>, ()) -> _`
found signature `extern "C" fn(&Foo<_>, ()) -> _`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0053`.

1
tests/ui/thread-local/thread-local-static.rs
View File

@ -12,7 +12,6 @@ const fn g(x: &mut [u32; 8]) {
//~^^ ERROR thread-local statics cannot be accessed
//~| ERROR mutable references are not allowed
//~| ERROR use of mutable static is unsafe
//~| referencing statics
}
fn main() {}

14
tests/ui/thread-local/thread-local-static.stderr
View File

@ -37,18 +37,6 @@ error[E0625]: thread-local statics cannot be accessed at compile-time
LL | std::mem::swap(x, &mut STATIC_VAR_2)
| ^^^^^^^^^^^^
error[E0658]: referencing statics in constant functions is unstable
--> $DIR/thread-local-static.rs:10:28
|
LL | std::mem::swap(x, &mut STATIC_VAR_2)
| ^^^^^^^^^^^^
|
= note: see issue #119618 <https://github.com/rust-lang/rust/issues/119618> for more information
= help: add `#![feature(const_refs_to_static)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
= 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.
error[E0658]: mutable references are not allowed in constant functions
--> $DIR/thread-local-static.rs:10:23
|
@ -59,7 +47,7 @@ LL | std::mem::swap(x, &mut STATIC_VAR_2)
= help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error: aborting due to 5 previous errors; 1 warning emitted
error: aborting due to 4 previous errors; 1 warning emitted
Some errors have detailed explanations: E0133, E0625, E0658.
For more information about an error, try `rustc --explain E0133`.

4
tests/ui/treat-err-as-bug/span_delayed_bug.rs
View File

@ -1,12 +1,12 @@
// compile-flags: -Ztreat-err-as-bug -Zeagerly-emit-delayed-bugs
// failure-status: 101
// error-pattern: aborting due to `-Z treat-err-as-bug=1`
// error-pattern: [trigger_span_delayed_bug] triggering a span delayed bug for testing incremental
// error-pattern: [trigger_delayed_bug] triggering a delayed bug for testing incremental
// normalize-stderr-test "note: .*\n\n" -> ""
// normalize-stderr-test "thread 'rustc' panicked.*:\n.*\n" -> ""
// rustc-env:RUST_BACKTRACE=0
#![feature(rustc_attrs)]
#[rustc_error(span_delayed_bug_from_inside_query)]
#[rustc_error(delayed_bug_from_inside_query)]
fn main() {}

4
tests/ui/treat-err-as-bug/span_delayed_bug.stderr
View File

@ -1,4 +1,4 @@
error: internal compiler error: delayed span bug triggered by #[rustc_error(span_delayed_bug_from_inside_query)]
error: internal compiler error: delayed bug triggered by #[rustc_error(delayed_bug_from_inside_query)]
--> $DIR/span_delayed_bug.rs:12:1
|
LL | fn main() {}
@ -7,5 +7,5 @@ LL | fn main() {}
error: the compiler unexpectedly panicked. this is a bug.
query stack during panic:
#0 [trigger_span_delayed_bug] triggering a span delayed bug for testing incremental
#0 [trigger_delayed_bug] triggering a delayed bug for testing incremental
end of query stack

31
tests/ui/typeck/issue-116864.rs Normal file
View File

@ -0,0 +1,31 @@
// compile-flags: -Znext-solver
// check-pass
// edition: 2021
use std::future::Future;
trait Baz {
type Param;
}
trait FnMutFut<P, R>: FnMut(P) -> Self::Future {
type Future: Future<Output = R>;
}
impl<P, F, FUT, R> FnMutFut<P, R> for F
where
F: FnMut(P) -> FUT,
FUT: Future<Output = R>,
{
type Future = FUT;
}
async fn foo<BAZ>(_: BAZ, mut cb: impl for<'any> FnMutFut<&'any BAZ::Param, ()>)
where
BAZ: Baz<Param = i32>,
{
cb(&1i32).await;
}
fn main() {
}

2
triagebot.toml
View File

@ -810,7 +810,7 @@ project-stable-mir = [
"/library/panic_abort" = ["libs"]
"/library/panic_unwind" = ["libs"]
"/library/proc_macro" = ["@petrochenkov"]
"/library/std" = ["libs"]
"/library/std" = ["libs", "@ChrisDenton"]
"/library/std/src/sys/pal/windows" = ["@ChrisDenton"]
"/library/stdarch" = ["libs"]
"/library/test" = ["libs"]