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Auto merge of #110252 - matthiaskrgr:rollup-ovaixra, r=matthiaskrgr

Browse Source 
Rollup of 8 pull requests

Successful merges:

 - #109810 (Replace rustdoc-ui/{c,z}-help tests with a stable run-make test )
 - #110035 (fix: ensure bad `#[test]` invocs retain correct AST)
 - #110089 (sync::mpsc: synchronize receiver disconnect with initialization)
 - #110103 (Report overflows gracefully with new solver)
 - #110122 (Fix x check --stage 1 when download-ci-llvm=false)
 - #110133 (Do not use ImplDerivedObligationCause for inherent impl method error reporting)
 - #110135 (Revert "Don't recover lifetimes/labels containing emojis as character literals")
 - #110235 (Fix `--extend-css` option)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2023-04-12 22:19:29 +00:00
commit 9693b178fc
55 changed files with 501 additions and 699 deletions
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62
compiler/rustc_builtin_macros/src/test.rs
View File

@ -118,34 +118,22 @@ pub fn expand_test_or_bench(
}
}
other => {
cx.struct_span_err(
other.span(),
"`#[test]` attribute is only allowed on non associated functions",
)
.emit();
not_testable_error(cx, attr_sp, None);
return vec![other];
}
};
// Note: non-associated fn items are already handled by `expand_test_or_bench`
let ast::ItemKind::Fn(fn_) = &item.kind else {
let diag = &cx.sess.parse_sess.span_diagnostic;
let msg = "the `#[test]` attribute may only be used on a non-associated function";
let mut err = match item.kind {
// These were a warning before #92959 and need to continue being that to avoid breaking
// stable user code (#94508).
ast::ItemKind::MacCall(_) => diag.struct_span_warn(attr_sp, msg),
// `.forget_guarantee()` needed to get these two arms to match types. Because of how
// locally close the `.emit()` call is I'm comfortable with it, but if it can be
// reworked in the future to not need it, it'd be nice.
_ => diag.struct_span_err(attr_sp, msg).forget_guarantee(),
not_testable_error(cx, attr_sp, Some(&item));
return if is_stmt {
vec![Annotatable::Stmt(P(ast::Stmt {
id: ast::DUMMY_NODE_ID,
span: item.span,
kind: ast::StmtKind::Item(item),
}))]
} else {
vec![Annotatable::Item(item)]
};
err.span_label(attr_sp, "the `#[test]` macro causes a function to be run on a test and has no effect on non-functions")
.span_label(item.span, format!("expected a non-associated function, found {} {}", item.kind.article(), item.kind.descr()))
.span_suggestion(attr_sp, "replace with conditional compilation to make the item only exist when tests are being run", "#[cfg(test)]", Applicability::MaybeIncorrect)
.emit();
return vec![Annotatable::Item(item)];
};
// has_*_signature will report any errors in the type so compilation
@ -398,6 +386,36 @@ pub fn expand_test_or_bench(
}
}
fn not_testable_error(cx: &ExtCtxt<'_>, attr_sp: Span, item: Option<&ast::Item>) {
let diag = &cx.sess.parse_sess.span_diagnostic;
let msg = "the `#[test]` attribute may only be used on a non-associated function";
let mut err = match item.map(|i| &i.kind) {
// These were a warning before #92959 and need to continue being that to avoid breaking
// stable user code (#94508).
Some(ast::ItemKind::MacCall(_)) => diag.struct_span_warn(attr_sp, msg),
// `.forget_guarantee()` needed to get these two arms to match types. Because of how
// locally close the `.emit()` call is I'm comfortable with it, but if it can be
// reworked in the future to not need it, it'd be nice.
_ => diag.struct_span_err(attr_sp, msg).forget_guarantee(),
};
if let Some(item) = item {
err.span_label(
item.span,
format!(
"expected a non-associated function, found {} {}",
item.kind.article(),
item.kind.descr()
),
);
}
err.span_label(attr_sp, "the `#[test]` macro causes a function to be run as a test and has no effect on non-functions")
.span_suggestion(attr_sp,
"replace with conditional compilation to make the item only exist when tests are being run",
"#[cfg(test)]",
Applicability::MaybeIncorrect)
.emit();
}
fn get_location_info(cx: &ExtCtxt<'_>, item: &ast::Item) -> (Symbol, usize, usize, usize, usize) {
let span = item.ident.span;
let (source_file, lo_line, lo_col, hi_line, hi_col) =

76
compiler/rustc_driver_impl/src/lib.rs
View File

@ -37,7 +37,7 @@ use rustc_metadata::locator;
use rustc_session::config::{nightly_options, CG_OPTIONS, Z_OPTIONS};
use rustc_session::config::{ErrorOutputType, Input, OutputType, PrintRequest, TrimmedDefPaths};
use rustc_session::cstore::MetadataLoader;
use rustc_session::getopts;
use rustc_session::getopts::{self, Matches};
use rustc_session::lint::{Lint, LintId};
use rustc_session::{config, Session};
use rustc_session::{early_error, early_error_no_abort, early_warn};
@ -956,6 +956,46 @@ Available lint options:
}
}
/// Show help for flag categories shared between rustdoc and rustc.
///
/// Returns whether a help option was printed.
pub fn describe_flag_categories(matches: &Matches) -> bool {
// Handle the special case of -Wall.
let wall = matches.opt_strs("W");
if wall.iter().any(|x| *x == "all") {
print_wall_help();
rustc_errors::FatalError.raise();
}
// Don't handle -W help here, because we might first load plugins.
let debug_flags = matches.opt_strs("Z");
if debug_flags.iter().any(|x| *x == "help") {
describe_debug_flags();
return true;
}
let cg_flags = matches.opt_strs("C");
if cg_flags.iter().any(|x| *x == "help") {
describe_codegen_flags();
return true;
}
if cg_flags.iter().any(|x| *x == "no-stack-check") {
early_warn(
ErrorOutputType::default(),
"the --no-stack-check flag is deprecated and does nothing",
);
}
if cg_flags.iter().any(|x| *x == "passes=list") {
let backend_name = debug_flags.iter().find_map(|x| x.strip_prefix("codegen-backend="));
get_codegen_backend(&None, backend_name).print_passes();
return true;
}
false
}
fn describe_debug_flags() {
println!("\nAvailable options:\n");
print_flag_list("-Z", config::Z_OPTIONS);
@ -966,7 +1006,7 @@ fn describe_codegen_flags() {
print_flag_list("-C", config::CG_OPTIONS);
}
pub fn print_flag_list<T>(
fn print_flag_list<T>(
cmdline_opt: &str,
flag_list: &[(&'static str, T, &'static str, &'static str)],
) {
@ -1059,37 +1099,7 @@ pub fn handle_options(args: &[String]) -> Option<getopts::Matches> {
return None;
}
// Handle the special case of -Wall.
let wall = matches.opt_strs("W");
if wall.iter().any(|x| *x == "all") {
print_wall_help();
rustc_errors::FatalError.raise();
}
// Don't handle -W help here, because we might first load plugins.
let debug_flags = matches.opt_strs("Z");
if debug_flags.iter().any(|x| *x == "help") {
describe_debug_flags();
return None;
}
let cg_flags = matches.opt_strs("C");
if cg_flags.iter().any(|x| *x == "help") {
describe_codegen_flags();
return None;
}
if cg_flags.iter().any(|x| *x == "no-stack-check") {
early_warn(
ErrorOutputType::default(),
"the --no-stack-check flag is deprecated and does nothing",
);
}
if cg_flags.iter().any(|x| *x == "passes=list") {
let backend_name = debug_flags.iter().find_map(|x| x.strip_prefix("codegen-backend="));
get_codegen_backend(&None, backend_name).print_passes();
if describe_flag_categories(&matches) {
return None;
}

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

@ -475,8 +475,6 @@ pub enum StashKey {
/// When an invalid lifetime e.g. `'2` should be reinterpreted
/// as a char literal in the parser
LifetimeIsChar,
/// When an invalid lifetime e.g. `'🐱` contains emoji.
LifetimeContainsEmoji,
/// Maybe there was a typo where a comma was forgotten before
/// FRU syntax
MaybeFruTypo,

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

@ -578,7 +578,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
#[instrument(skip(self), level = "debug")]
pub(in super::super) fn report_ambiguity_errors(&self) {
let mut errors = self.fulfillment_cx.borrow_mut().collect_remaining_errors();
let mut errors = self.fulfillment_cx.borrow_mut().collect_remaining_errors(self);
if !errors.is_empty() {
self.adjust_fulfillment_errors_for_expr_obligation(&mut errors);

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

@ -78,7 +78,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
// Finally, for ambiguity-related errors, we actually want to look
// for a parameter that is the source of the inference type left
// over in this predicate.
if let traits::FulfillmentErrorCode::CodeAmbiguity = error.code {
if let traits::FulfillmentErrorCode::CodeAmbiguity { .. } = error.code {
fallback_param_to_point_at = None;
self_param_to_point_at = None;
param_to_point_at =

29
compiler/rustc_hir_typeck/src/method/probe.rs
View File

@ -1531,23 +1531,18 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> {
// Convert the bounds into obligations.
let impl_obligations = traits::predicates_for_generics(
|_idx, span| {
let misc = traits::ObligationCause::misc(span, self.body_id);
let parent_trait_pred = ty::Binder::dummy(ty::TraitPredicate {
trait_ref: ty::TraitRef::from_method(self.tcx, impl_def_id, substs),
constness: ty::BoundConstness::NotConst,
polarity: ty::ImplPolarity::Positive,
});
misc.derived_cause(parent_trait_pred, |derived| {
traits::ImplDerivedObligation(Box::new(
traits::ImplDerivedObligationCause {
derived,
impl_or_alias_def_id: impl_def_id,
impl_def_predicate_index: None,
span,
},
))
})
|idx, span| {
let code = if span.is_dummy() {
traits::ExprItemObligation(impl_def_id, self.scope_expr_id, idx)
} else {
traits::ExprBindingObligation(
impl_def_id,
span,
self.scope_expr_id,
idx,
)
};
ObligationCause::new(self.span, self.body_id, code)
},
self.param_env,
impl_bounds,

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

@ -661,19 +661,26 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
// Find all the requirements that come from a local `impl` block.
let mut skip_list: FxHashSet<_> = Default::default();
let mut spanned_predicates = FxHashMap::default();
for (p, parent_p, impl_def_id, cause) in unsatisfied_predicates
.iter()
.filter_map(|(p, parent, c)| c.as_ref().map(|c| (p, parent, c)))
.filter_map(|(p, parent, c)| match c.code() {
ObligationCauseCode::ImplDerivedObligation(data)
if matches!(p.kind().skip_binder(), ty::PredicateKind::Clause(_)) =>
{
Some((p, parent, data.impl_or_alias_def_id, data))
for (p, parent_p, cause) in unsatisfied_predicates {
// Extract the predicate span and parent def id of the cause,
// if we have one.
let (item_def_id, cause_span) = match cause.as_ref().map(|cause| cause.code()) {
Some(ObligationCauseCode::ImplDerivedObligation(data)) => {
(data.impl_or_alias_def_id, data.span)
}
_ => None,
})
{
match self.tcx.hir().get_if_local(impl_def_id) {
Some(
ObligationCauseCode::ExprBindingObligation(def_id, span, _, _)
| ObligationCauseCode::BindingObligation(def_id, span),
) => (*def_id, *span),
_ => continue,
};
// Don't point out the span of `WellFormed` predicates.
if !matches!(p.kind().skip_binder(), ty::PredicateKind::Clause(_)) {
continue;
};
match self.tcx.hir().get_if_local(item_def_id) {
// Unmet obligation comes from a `derive` macro, point at it once to
// avoid multiple span labels pointing at the same place.
Some(Node::Item(hir::Item {
@ -718,7 +725,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
}
});
for param in generics.params {
if param.span == cause.span && sized_pred {
if param.span == cause_span && sized_pred {
let (sp, sugg) = match param.colon_span {
Some(sp) => (sp.shrink_to_hi(), " ?Sized +"),
None => (param.span.shrink_to_hi(), ": ?Sized"),
@ -741,9 +748,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
(FxHashSet::default(), FxHashSet::default(), Vec::new())
});
entry.2.push(p);
if cause.span != *item_span {
entry.0.insert(cause.span);
entry.1.insert((cause.span, "unsatisfied trait bound introduced here"));
if cause_span != *item_span {
entry.0.insert(cause_span);
entry.1.insert((cause_span, "unsatisfied trait bound introduced here"));
} else {
if let Some(trait_ref) = of_trait {
entry.0.insert(trait_ref.path.span);
@ -775,9 +782,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
let entry = entry.or_insert_with(|| {
(FxHashSet::default(), FxHashSet::default(), Vec::new())
});
entry.0.insert(cause.span);
entry.0.insert(cause_span);
entry.1.insert((ident.span, ""));
entry.1.insert((cause.span, "unsatisfied trait bound introduced here"));
entry.1.insert((cause_span, "unsatisfied trait bound introduced here"));
entry.2.push(p);
}
Some(node) => unreachable!("encountered `{node:?}`"),

4
compiler/rustc_infer/src/traits/engine.rs
View File

@ -38,7 +38,7 @@ pub trait TraitEngine<'tcx>: 'tcx {
fn select_where_possible(&mut self, infcx: &InferCtxt<'tcx>) -> Vec<FulfillmentError<'tcx>>;
fn collect_remaining_errors(&mut self) -> Vec<FulfillmentError<'tcx>>;
fn collect_remaining_errors(&mut self, infcx: &InferCtxt<'tcx>) -> Vec<FulfillmentError<'tcx>>;
fn pending_obligations(&self) -> Vec<PredicateObligation<'tcx>>;
@ -78,6 +78,6 @@ impl<'tcx, T: ?Sized + TraitEngine<'tcx>> TraitEngineExt<'tcx> for T {
return errors;
}
self.collect_remaining_errors()
self.collect_remaining_errors(infcx)
}
}

6
compiler/rustc_infer/src/traits/mod.rs
View File

@ -128,7 +128,11 @@ pub enum FulfillmentErrorCode<'tcx> {
CodeProjectionError(MismatchedProjectionTypes<'tcx>),
CodeSubtypeError(ExpectedFound<Ty<'tcx>>, TypeError<'tcx>), // always comes from a SubtypePredicate
CodeConstEquateError(ExpectedFound<Const<'tcx>>, TypeError<'tcx>),
CodeAmbiguity,
CodeAmbiguity {
/// Overflow reported from the new solver `-Ztrait-solver=next`, which will
/// be reported as an regular error as opposed to a fatal error.
overflow: bool,
},
}
impl<'tcx, O> Obligation<'tcx, O> {

3
compiler/rustc_infer/src/traits/structural_impls.rs
View File

@ -46,7 +46,8 @@ impl<'tcx> fmt::Debug for traits::FulfillmentErrorCode<'tcx> {
super::CodeConstEquateError(ref a, ref b) => {
write!(f, "CodeConstEquateError({:?}, {:?})", a, b)
}
super::CodeAmbiguity => write!(f, "Ambiguity"),
super::CodeAmbiguity { overflow: false } => write!(f, "Ambiguity"),
super::CodeAmbiguity { overflow: true } => write!(f, "Overflow"),
super::CodeCycle(ref cycle) => write!(f, "Cycle({:?})", cycle),
}
}

43
compiler/rustc_lexer/src/lib.rs
View File

@ -95,7 +95,7 @@ pub enum TokenKind {
Literal { kind: LiteralKind, suffix_start: u32 },
/// "'a"
Lifetime { starts_with_number: bool, contains_emoji: bool },
Lifetime { starts_with_number: bool },
// One-char tokens:
/// ";"
@ -632,13 +632,7 @@ impl Cursor<'_> {
// If the first symbol is valid for identifier, it can be a lifetime.
// Also check if it's a number for a better error reporting (so '0 will
// be reported as invalid lifetime and not as unterminated char literal).
// We also have to account for potential `'🐱` emojis to avoid reporting
// it as an unterminated char literal.
is_id_start(self.first())
|| self.first().is_digit(10)
// FIXME(#108019): `unic-emoji-char` seems to have data tables only up to Unicode
// 5.0, but Unicode is already newer than this.
|| unic_emoji_char::is_emoji(self.first())
is_id_start(self.first()) || self.first().is_digit(10)
};
if !can_be_a_lifetime {
@ -651,33 +645,16 @@ impl Cursor<'_> {
return Literal { kind, suffix_start };
}
// Either a lifetime or a character literal.
// Either a lifetime or a character literal with
// length greater than 1.
let starts_with_number = self.first().is_digit(10);
let mut contains_emoji = false;
// FIXME(#108019): `unic-emoji-char` seems to have data tables only up to Unicode
// 5.0, but Unicode is already newer than this.
if unic_emoji_char::is_emoji(self.first()) {
contains_emoji = true;
} else {
// Skip the literal contents.
// First symbol can be a number (which isn't a valid identifier start),
// so skip it without any checks.
self.bump();
}
self.eat_while(|c| {
if is_id_continue(c) {
true
// FIXME(#108019): `unic-emoji-char` seems to have data tables only up to Unicode
// 5.0, but Unicode is already newer than this.
} else if unic_emoji_char::is_emoji(c) {
contains_emoji = true;
true
} else {
false
}
});
// Skip the literal contents.
// First symbol can be a number (which isn't a valid identifier start),
// so skip it without any checks.
self.bump();
self.eat_while(is_id_continue);
// Check if after skipping literal contents we've met a closing
// single quote (which means that user attempted to create a
@ -687,7 +664,7 @@ impl Cursor<'_> {
let kind = Char { terminated: true };
Literal { kind, suffix_start: self.pos_within_token() }
} else {
Lifetime { starts_with_number, contains_emoji }
Lifetime { starts_with_number }
}
}

2
compiler/rustc_lexer/src/tests.rs
View File

@ -235,7 +235,7 @@ fn lifetime() {
check_lexing(
"'abc",
expect![[r#"
Token { kind: Lifetime { starts_with_number: false, contains_emoji: false }, len: 4 }
Token { kind: Lifetime { starts_with_number: false }, len: 4 }
"#]],
);
}

9
compiler/rustc_parse/src/lexer/mod.rs
View File

@ -223,21 +223,16 @@ impl<'a> StringReader<'a> {
};
token::Literal(token::Lit { kind, symbol, suffix })
}
rustc_lexer::TokenKind::Lifetime { starts_with_number, contains_emoji } => {
rustc_lexer::TokenKind::Lifetime { starts_with_number } => {
// Include the leading `'` in the real identifier, for macro
// expansion purposes. See #12512 for the gory details of why
// this is necessary.
let lifetime_name = self.str_from(start);
if starts_with_number {
let span = self.mk_sp(start, self.pos);
let mut diag = self.sess.struct_err("lifetimes or labels cannot start with a number");
let mut diag = self.sess.struct_err("lifetimes cannot start with a number");
diag.set_span(span);
diag.stash(span, StashKey::LifetimeIsChar);
} else if contains_emoji {
let span = self.mk_sp(start, self.pos);
let mut diag = self.sess.struct_err("lifetimes or labels cannot contain emojis");
diag.set_span(span);
diag.stash(span, StashKey::LifetimeContainsEmoji);
}
let ident = Symbol::intern(lifetime_name);
token::Lifetime(ident)

29
compiler/rustc_trait_selection/src/solve/fulfill.rs
View File

@ -1,6 +1,7 @@
use std::mem;
use rustc_infer::infer::InferCtxt;
use rustc_infer::traits::solve::MaybeCause;
use rustc_infer::traits::Obligation;
use rustc_infer::traits::{
query::NoSolution, FulfillmentError, FulfillmentErrorCode, MismatchedProjectionTypes,
@ -41,13 +42,31 @@ impl<'tcx> TraitEngine<'tcx> for FulfillmentCtxt<'tcx> {
self.obligations.push(obligation);
}
fn collect_remaining_errors(&mut self) -> Vec<FulfillmentError<'tcx>> {
fn collect_remaining_errors(&mut self, infcx: &InferCtxt<'tcx>) -> Vec<FulfillmentError<'tcx>> {
self.obligations
.drain(..)
.map(|obligation| FulfillmentError {
obligation: obligation.clone(),
code: FulfillmentErrorCode::CodeAmbiguity,
root_obligation: obligation,
.map(|obligation| {
let code =
infcx.probe(|_| match infcx.evaluate_root_goal(obligation.clone().into()) {
Ok((_, Certainty::Maybe(MaybeCause::Ambiguity), _)) => {
FulfillmentErrorCode::CodeAmbiguity { overflow: false }
}
Ok((_, Certainty::Maybe(MaybeCause::Overflow), _)) => {
FulfillmentErrorCode::CodeAmbiguity { overflow: true }
}
Ok((_, Certainty::Yes, _)) => {
bug!("did not expect successful goal when collecting ambiguity errors")
}
Err(_) => {
bug!("did not expect selection error when collecting ambiguity errors")
}
});
FulfillmentError {
obligation: obligation.clone(),
code,
root_obligation: obligation,
}
})
.collect()
}

7
compiler/rustc_trait_selection/src/traits/chalk_fulfill.rs
View File

@ -40,13 +40,16 @@ impl<'tcx> TraitEngine<'tcx> for FulfillmentContext<'tcx> {
self.obligations.insert(obligation);
}
fn collect_remaining_errors(&mut self) -> Vec<FulfillmentError<'tcx>> {
fn collect_remaining_errors(
&mut self,
_infcx: &InferCtxt<'tcx>,
) -> Vec<FulfillmentError<'tcx>> {
// any remaining obligations are errors
self.obligations
.iter()
.map(|obligation| FulfillmentError {
obligation: obligation.clone(),
code: FulfillmentErrorCode::CodeAmbiguity,
code: FulfillmentErrorCode::CodeAmbiguity { overflow: false },
// FIXME - does Chalk have a notation of 'root obligation'?
// This is just for diagnostics, so it's okay if this is wrong
root_obligation: obligation.clone(),

15
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
View File

@ -125,6 +125,8 @@ pub trait TypeErrCtxtExt<'tcx> {
+ Print<'tcx, FmtPrinter<'tcx, 'tcx>, Output = FmtPrinter<'tcx, 'tcx>>,
<T as Print<'tcx, FmtPrinter<'tcx, 'tcx>>>::Error: std::fmt::Debug;
fn report_overflow_no_abort(&self, obligation: PredicateObligation<'tcx>) -> ErrorGuaranteed;
fn report_fulfillment_errors(&self, errors: &[FulfillmentError<'tcx>]) -> ErrorGuaranteed;
fn report_overflow_obligation<T>(
@ -602,6 +604,14 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
);
}
fn report_overflow_no_abort(&self, obligation: PredicateObligation<'tcx>) -> ErrorGuaranteed {
let obligation = self.resolve_vars_if_possible(obligation);
let mut err = self.build_overflow_error(&obligation.predicate, obligation.cause.span, true);
self.note_obligation_cause(&mut err, &obligation);
self.point_at_returns_when_relevant(&mut err, &obligation);
err.emit()
}
fn report_selection_error(
&self,
mut obligation: PredicateObligation<'tcx>,
@ -1658,9 +1668,12 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
FulfillmentErrorCode::CodeProjectionError(ref e) => {
self.report_projection_error(&error.obligation, e);
}
FulfillmentErrorCode::CodeAmbiguity => {
FulfillmentErrorCode::CodeAmbiguity { overflow: false } => {
self.maybe_report_ambiguity(&error.obligation);
}
FulfillmentErrorCode::CodeAmbiguity { overflow: true } => {
self.report_overflow_no_abort(error.obligation.clone());
}
FulfillmentErrorCode::CodeSubtypeError(ref expected_found, ref err) => {
self.report_mismatched_types(
&error.obligation.cause,

11
compiler/rustc_trait_selection/src/traits/fulfill.rs
View File

@ -133,8 +133,15 @@ impl<'tcx> TraitEngine<'tcx> for FulfillmentContext<'tcx> {
.register_obligation(PendingPredicateObligation { obligation, stalled_on: vec![] });
}
fn collect_remaining_errors(&mut self) -> Vec<FulfillmentError<'tcx>> {
self.predicates.to_errors(CodeAmbiguity).into_iter().map(to_fulfillment_error).collect()
fn collect_remaining_errors(
&mut self,
_infcx: &InferCtxt<'tcx>,
) -> Vec<FulfillmentError<'tcx>> {
self.predicates
.to_errors(CodeAmbiguity { overflow: false })
.into_iter()
.map(to_fulfillment_error)
.collect()
}
fn select_where_possible(&mut self, infcx: &InferCtxt<'tcx>) -> Vec<FulfillmentError<'tcx>> {

12
library/std/src/sync/mpmc/list.rs
View File

@ -549,6 +549,18 @@ impl<T> Channel<T> {
let mut head = self.head.index.load(Ordering::Acquire);
let mut block = self.head.block.load(Ordering::Acquire);
// If we're going to be dropping messages we need to synchronize with initialization
if head >> SHIFT != tail >> SHIFT {
// The block can be null here only if a sender is in the process of initializing the
// channel while another sender managed to send a message by inserting it into the
// semi-initialized channel and advanced the tail.
// In that case, just wait until it gets initialized.
while block.is_null() {
backoff.spin_heavy();
block = self.head.block.load(Ordering::Acquire);
}
}
unsafe {
// Drop all messages between head and tail and deallocate the heap-allocated blocks.
while head >> SHIFT != tail >> SHIFT {

4
src/bootstrap/check.rs
View File

@ -237,7 +237,7 @@ impl Step for Rustc {
target,
cargo_subcommand(builder.kind),
);
rustc_cargo(builder, &mut cargo, target);
rustc_cargo(builder, &mut cargo, target, compiler.stage);
// For ./x.py clippy, don't run with --all-targets because
// linting tests and benchmarks can produce very noisy results
@ -323,7 +323,7 @@ impl Step for CodegenBackend {
cargo
.arg("--manifest-path")
.arg(builder.src.join(format!("compiler/rustc_codegen_{}/Cargo.toml", backend)));
rustc_cargo_env(builder, &mut cargo, target);
rustc_cargo_env(builder, &mut cargo, target, compiler.stage);
let msg = if compiler.host == target {
format!("Checking stage{} {} artifacts ({target})", builder.top_stage, backend)

150
src/bootstrap/compile.rs
View File

@ -696,7 +696,7 @@ impl Step for Rustc {
));
let mut cargo = builder.cargo(compiler, Mode::Rustc, SourceType::InTree, target, "build");
rustc_cargo(builder, &mut cargo, target);
rustc_cargo(builder, &mut cargo, target, compiler.stage);
if builder.config.rust_profile_use.is_some()
&& builder.config.rust_profile_generate.is_some()
@ -813,16 +813,21 @@ impl Step for Rustc {
}
}
pub fn rustc_cargo(builder: &Builder<'_>, cargo: &mut Cargo, target: TargetSelection) {
pub fn rustc_cargo(builder: &Builder<'_>, cargo: &mut Cargo, target: TargetSelection, stage: u32) {
cargo
.arg("--features")
.arg(builder.rustc_features(builder.kind))
.arg("--manifest-path")
.arg(builder.src.join("compiler/rustc/Cargo.toml"));
rustc_cargo_env(builder, cargo, target);
rustc_cargo_env(builder, cargo, target, stage);
}
pub fn rustc_cargo_env(builder: &Builder<'_>, cargo: &mut Cargo, target: TargetSelection) {
pub fn rustc_cargo_env(
builder: &Builder<'_>,
cargo: &mut Cargo,
target: TargetSelection,
stage: u32,
) {
// Set some configuration variables picked up by build scripts and
// the compiler alike
cargo
@ -867,83 +872,86 @@ pub fn rustc_cargo_env(builder: &Builder<'_>, cargo: &mut Cargo, target: TargetS
cargo.env("RUSTC_VERIFY_LLVM_IR", "1");
}
// Pass down configuration from the LLVM build into the build of
// rustc_llvm and rustc_codegen_llvm.
//
// Note that this is disabled if LLVM itself is disabled or we're in a check
// build. If we are in a check build we still go ahead here presuming we've
// detected that LLVM is already built and good to go which helps prevent
// busting caches (e.g. like #71152).
if builder.config.llvm_enabled()
&& (builder.kind != Kind::Check
|| crate::llvm::prebuilt_llvm_config(builder, target).is_ok())
{
if builder.is_rust_llvm(target) {
cargo.env("LLVM_RUSTLLVM", "1");
}
let llvm::LlvmResult { llvm_config, .. } = builder.ensure(llvm::Llvm { target });
cargo.env("LLVM_CONFIG", &llvm_config);
if let Some(s) = target_config.and_then(|c| c.llvm_config.as_ref()) {
cargo.env("CFG_LLVM_ROOT", s);
if builder.config.llvm_enabled() {
let building_is_expensive = crate::llvm::prebuilt_llvm_config(builder, target).is_err();
// `top_stage == stage` might be false for `check --stage 1`, if we are building the stage 1 compiler
let can_skip_build = builder.kind == Kind::Check && builder.top_stage == stage;
let should_skip_build = building_is_expensive && can_skip_build;
if !should_skip_build {
rustc_llvm_env(builder, cargo, target)
}
}
}
// Some LLVM linker flags (-L and -l) may be needed to link `rustc_llvm`. Its build script
// expects these to be passed via the `LLVM_LINKER_FLAGS` env variable, separated by
// whitespace.
//
// For example:
// - on windows, when `clang-cl` is used with instrumentation, we need to manually add
// clang's runtime library resource directory so that the profiler runtime library can be
// found. This is to avoid the linker errors about undefined references to
// `__llvm_profile_instrument_memop` when linking `rustc_driver`.
let mut llvm_linker_flags = String::new();
if builder.config.llvm_profile_generate && target.contains("msvc") {
if let Some(ref clang_cl_path) = builder.config.llvm_clang_cl {
// Add clang's runtime library directory to the search path
let clang_rt_dir = get_clang_cl_resource_dir(clang_cl_path);
llvm_linker_flags.push_str(&format!("-L{}", clang_rt_dir.display()));
}
}
/// Pass down configuration from the LLVM build into the build of
/// rustc_llvm and rustc_codegen_llvm.
fn rustc_llvm_env(builder: &Builder<'_>, cargo: &mut Cargo, target: TargetSelection) {
let target_config = builder.config.target_config.get(&target);
// The config can also specify its own llvm linker flags.
if let Some(ref s) = builder.config.llvm_ldflags {
if !llvm_linker_flags.is_empty() {
llvm_linker_flags.push_str(" ");
}
llvm_linker_flags.push_str(s);
}
if builder.is_rust_llvm(target) {
cargo.env("LLVM_RUSTLLVM", "1");
}
let llvm::LlvmResult { llvm_config, .. } = builder.ensure(llvm::Llvm { target });
cargo.env("LLVM_CONFIG", &llvm_config);
if let Some(s) = target_config.and_then(|c| c.llvm_config.as_ref()) {
cargo.env("CFG_LLVM_ROOT", s);
}
// Set the linker flags via the env var that `rustc_llvm`'s build script will read.
// Some LLVM linker flags (-L and -l) may be needed to link `rustc_llvm`. Its build script
// expects these to be passed via the `LLVM_LINKER_FLAGS` env variable, separated by
// whitespace.
//
// For example:
// - on windows, when `clang-cl` is used with instrumentation, we need to manually add
// clang's runtime library resource directory so that the profiler runtime library can be
// found. This is to avoid the linker errors about undefined references to
// `__llvm_profile_instrument_memop` when linking `rustc_driver`.
let mut llvm_linker_flags = String::new();
if builder.config.llvm_profile_generate && target.contains("msvc") {
if let Some(ref clang_cl_path) = builder.config.llvm_clang_cl {
// Add clang's runtime library directory to the search path
let clang_rt_dir = get_clang_cl_resource_dir(clang_cl_path);
llvm_linker_flags.push_str(&format!("-L{}", clang_rt_dir.display()));
}
}
// The config can also specify its own llvm linker flags.
if let Some(ref s) = builder.config.llvm_ldflags {
if !llvm_linker_flags.is_empty() {
cargo.env("LLVM_LINKER_FLAGS", llvm_linker_flags);
llvm_linker_flags.push_str(" ");
}
llvm_linker_flags.push_str(s);
}
// Building with a static libstdc++ is only supported on linux right now,
// not for MSVC or macOS
if builder.config.llvm_static_stdcpp
&& !target.contains("freebsd")
&& !target.contains("msvc")
&& !target.contains("apple")
&& !target.contains("solaris")
{
let file = compiler_file(
builder,
builder.cxx(target).unwrap(),
target,
CLang::Cxx,
"libstdc++.a",
);
cargo.env("LLVM_STATIC_STDCPP", file);
}
if builder.llvm_link_shared() {
cargo.env("LLVM_LINK_SHARED", "1");
}
if builder.config.llvm_use_libcxx {
cargo.env("LLVM_USE_LIBCXX", "1");
}
if builder.config.llvm_optimize && !builder.config.llvm_release_debuginfo {
cargo.env("LLVM_NDEBUG", "1");
}
// Set the linker flags via the env var that `rustc_llvm`'s build script will read.
if !llvm_linker_flags.is_empty() {
cargo.env("LLVM_LINKER_FLAGS", llvm_linker_flags);
}
// Building with a static libstdc++ is only supported on linux right now,
// not for MSVC or macOS
if builder.config.llvm_static_stdcpp
&& !target.contains("freebsd")
&& !target.contains("msvc")
&& !target.contains("apple")
&& !target.contains("solaris")
{
let file =
compiler_file(builder, builder.cxx(target).unwrap(), target, CLang::Cxx, "libstdc++.a");
cargo.env("LLVM_STATIC_STDCPP", file);
}
if builder.llvm_link_shared() {
cargo.env("LLVM_LINK_SHARED", "1");
}
if builder.config.llvm_use_libcxx {
cargo.env("LLVM_USE_LIBCXX", "1");
}
if builder.config.llvm_optimize && !builder.config.llvm_release_debuginfo {
cargo.env("LLVM_NDEBUG", "1");
}
}
@ -1090,7 +1098,7 @@ impl Step for CodegenBackend {
cargo
.arg("--manifest-path")
.arg(builder.src.join(format!("compiler/rustc_codegen_{}/Cargo.toml", backend)));
rustc_cargo_env(builder, &mut cargo, target);
rustc_cargo_env(builder, &mut cargo, target, compiler.stage);
let tmp_stamp = out_dir.join(".tmp.stamp");

2
src/bootstrap/doc.rs
View File

@ -696,7 +696,7 @@ impl Step for Rustc {
cargo.rustdocflag("-Znormalize-docs");
cargo.rustdocflag("--show-type-layout");
cargo.rustdocflag("--generate-link-to-definition");
compile::rustc_cargo(builder, &mut cargo, target);
compile::rustc_cargo(builder, &mut cargo, target, compiler.stage);
cargo.arg("-Zunstable-options");
cargo.arg("-Zskip-rustdoc-fingerprint");

4
src/bootstrap/test.rs
View File

@ -1064,6 +1064,8 @@ impl Step for RustdocGUI {
cargo.env("RUSTDOCFLAGS", "-Zunstable-options --generate-link-to-definition");
} else if entry.file_name() == "scrape_examples" {
cargo.arg("-Zrustdoc-scrape-examples");
} else if entry.file_name() == "extend_css" {
cargo.env("RUSTDOCFLAGS", &format!("--extend-css extra.css"));
}
builder.run(&mut cargo);
}
@ -2146,7 +2148,7 @@ impl Step for Crate {
compile::std_cargo(builder, target, compiler.stage, &mut cargo);
}
Mode::Rustc => {
compile::rustc_cargo(builder, &mut cargo, target);
compile::rustc_cargo(builder, &mut cargo, target, compiler.stage);
}
_ => panic!("can only test libraries"),
};

5
src/doc/rustdoc/src/command-line-arguments.md
View File

@ -320,10 +320,7 @@ $ rustdoc src/lib.rs --extend-css extra.css
```
With this flag, the contents of the files you pass are included at the bottom
of Rustdoc's `theme.css` file.
While this flag is stable, the contents of `theme.css` are not, so be careful!
Updates may break your theme extensions.
of the `theme.css` file.
## `--sysroot`: override the system root

10
src/librustdoc/config.rs
View File

@ -6,7 +6,6 @@ use std::path::PathBuf;
use std::str::FromStr;
use rustc_data_structures::fx::FxHashMap;
use rustc_driver::print_flag_list;
use rustc_session::config::{
self, parse_crate_types_from_list, parse_externs, parse_target_triple, CrateType,
};
@ -328,14 +327,7 @@ impl Options {
return Err(0);
}
let z_flags = matches.opt_strs("Z");
if z_flags.iter().any(|x| *x == "help") {
print_flag_list("-Z", config::Z_OPTIONS);
return Err(0);
}
let c_flags = matches.opt_strs("C");
if c_flags.iter().any(|x| *x == "help") {
print_flag_list("-C", config::CG_OPTIONS);
if rustc_driver::describe_flag_categories(&matches) {
return Err(0);
}

2
src/librustdoc/doctest.rs
View File

@ -398,6 +398,8 @@ fn run_test(
compiler.stdin(Stdio::piped());
compiler.stderr(Stdio::piped());
debug!("compiler invocation for doctest: {:?}", compiler);
let mut child = compiler.spawn().expect("Failed to spawn rustc process");
{
let stdin = child.stdin.as_mut().expect("Failed to open stdin");

2
src/librustdoc/html/templates/page.html
View File

@ -64,7 +64,7 @@
</noscript> {# #}
{% if layout.css_file_extension.is_some() %}
<link rel="stylesheet" {#+ #}
href="{{static_root_path|safe}}theme{{page.resource_suffix}}.css"> {# #}
href="{{page.root_path|safe}}theme{{page.resource_suffix}}.css"> {# #}
{% endif %}
{% if !layout.favicon.is_empty() %}
<link rel="icon" href="{{layout.favicon}}"> {# #}

18
tests/run-make/rustdoc-shared-flags/Makefile Normal file
View File

@ -0,0 +1,18 @@
include ../tools.mk
all: z_help c_help list_passes
c_help:
$(RUSTC) -C help > $(TMPDIR)/rustc.c_help.txt
$(RUSTDOC) -C help > $(TMPDIR)/rustdoc.c_help.txt
$(DIFF) $(TMPDIR)/rustc.c_help.txt $(TMPDIR)/rustdoc.c_help.txt
z_help:
$(RUSTC) -Z help > $(TMPDIR)/rustc.z_help.txt
$(RUSTDOC) -Z help > $(TMPDIR)/rustdoc.z_help.txt
$(DIFF) $(TMPDIR)/rustc.z_help.txt $(TMPDIR)/rustdoc.z_help.txt
list_passes:
$(RUSTC) -C passes=list > $(TMPDIR)/rustc.passes.txt
$(RUSTDOC) -C passes=list > $(TMPDIR)/rustdoc.passes.txt
$(DIFF) $(TMPDIR)/rustc.passes.txt $(TMPDIR)/rustdoc.passes.txt

5
tests/rustdoc-gui/extend-css.goml Normal file
View File

@ -0,0 +1,5 @@
// Test to ensure that the `--extend-css` option is working as expected.
go-to: "file://" + |DOC_PATH| + "/extend_css/index.html"
show-text: true
// The text from the `.extend` element should be red.
assert-css: (".extend", {"color": "rgb(255, 0, 0)"})

2
tests/rustdoc-gui/search-filter.goml
View File

@ -16,6 +16,7 @@ press-key: "ArrowDown"
press-key: "ArrowDown"
press-key: "ArrowDown"
press-key: "ArrowDown"
press-key: "ArrowDown"
press-key: "Enter"
// Waiting for the search results to appear...
wait-for: "#search-tabs"
@ -41,6 +42,7 @@ press-key: "ArrowUp"
press-key: "ArrowUp"
press-key: "ArrowUp"
press-key: "ArrowUp"
press-key: "ArrowUp"
press-key: "Enter"
// Waiting for the search results to appear...
wait-for: "#search-tabs"

2
tests/rustdoc-gui/sidebar-source-code.goml
View File

@ -73,7 +73,7 @@ assert: "//*[@class='dir-entry' and @open]/*[text()='sub_mod']"
// Only "another_folder" should be "open" in "lib2".
assert: "//*[@class='dir-entry' and not(@open)]/*[text()='another_mod']"
// All other trees should be collapsed.
assert-count: ("//*[@id='source-sidebar']/details[not(text()='lib2') and not(@open)]", 8)
assert-count: ("//*[@id='source-sidebar']/details[not(text()='lib2') and not(@open)]", 9)
// We now switch to mobile mode.
set-window-size: (600, 600)

2
tests/rustdoc-gui/source-code-page.goml
View File

@ -102,7 +102,7 @@ assert: ".source-sidebar-expanded"
// We check that the first entry of the sidebar is collapsed
assert-property: ("#source-sidebar details:first-of-type", {"open": "false"})
assert-text: ("#source-sidebar details:first-of-type > summary", "http")
assert-text: ("#source-sidebar details:first-of-type > summary", "extend_css")
// We now click on it.
click: "#source-sidebar details:first-of-type > summary"
assert-property: ("#source-sidebar details:first-of-type", {"open": "true"})

7
tests/rustdoc-gui/src/extend_css/Cargo.lock Normal file
View File

@ -0,0 +1,7 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "extend_css"
version = "0.1.0"

7
tests/rustdoc-gui/src/extend_css/Cargo.toml Normal file
View File

@ -0,0 +1,7 @@
[package]
name = "extend_css"
version = "0.1.0"
edition = "2018"
[lib]
path = "lib.rs"

3
tests/rustdoc-gui/src/extend_css/extra.css Normal file
View File

@ -0,0 +1,3 @@
.extend {
color: red !important;
}

1
tests/rustdoc-gui/src/extend_css/lib.rs Normal file
View File

@ -0,0 +1 @@
//! <div class="extend">text in red</div>

6
tests/rustdoc-ui/c-help.rs
View File

@ -1,6 +0,0 @@
// check-pass
// compile-flags: -Chelp
// check-stdout
// regex-error-pattern: -C\s+incremental
pub struct Foo;

51
tests/rustdoc-ui/c-help.stdout
View File

@ -1,51 +0,0 @@
-C ar=val -- this option is deprecated and does nothing
-C code-model=val -- choose the code model to use (`rustc --print code-models` for details)
-C codegen-units=val -- divide crate into N units to optimize in parallel
-C control-flow-guard=val -- use Windows Control Flow Guard (default: no)
-C debug-assertions=val -- explicitly enable the `cfg(debug_assertions)` directive
-C debuginfo=val -- debug info emission level (0-2, none, line-directives-only, line-tables-only, limited, or full; default: 0)
-C default-linker-libraries=val -- allow the linker to link its default libraries (default: no)
-C embed-bitcode=val -- emit bitcode in rlibs (default: yes)
-C extra-filename=val -- extra data to put in each output filename
-C force-frame-pointers=val -- force use of the frame pointers
-C force-unwind-tables=val -- force use of unwind tables
-C incremental=val -- enable incremental compilation
-C inline-threshold=val -- set the threshold for inlining a function
-C instrument-coverage=val -- instrument the generated code to support LLVM source-based code coverage reports (note, the compiler build config must include `profiler = true`); implies `-C symbol-mangling-version=v0`. Optional values are:
`=all` (implicit value)
`=except-unused-generics`
`=except-unused-functions`
`=off` (default)
-C link-arg=val -- a single extra argument to append to the linker invocation (can be used several times)
-C link-args=val -- extra arguments to append to the linker invocation (space separated)
-C link-dead-code=val -- keep dead code at link time (useful for code coverage) (default: no)
-C link-self-contained=val -- control whether to link Rust provided C objects/libraries or rely
on C toolchain installed in the system
-C linker=val -- system linker to link outputs with
-C linker-flavor=val -- linker flavor
-C linker-plugin-lto=val -- generate build artifacts that are compatible with linker-based LTO
-C llvm-args=val -- a list of arguments to pass to LLVM (space separated)
-C lto=val -- perform LLVM link-time optimizations
-C metadata=val -- metadata to mangle symbol names with
-C no-prepopulate-passes=val -- give an empty list of passes to the pass manager
-C no-redzone=val -- disable the use of the redzone
-C no-stack-check=val -- this option is deprecated and does nothing
-C no-vectorize-loops=val -- disable loop vectorization optimization passes
-C no-vectorize-slp=val -- disable LLVM's SLP vectorization pass
-C opt-level=val -- optimization level (0-3, s, or z; default: 0)
-C overflow-checks=val -- use overflow checks for integer arithmetic
-C panic=val -- panic strategy to compile crate with
-C passes=val -- a list of extra LLVM passes to run (space separated)
-C prefer-dynamic=val -- prefer dynamic linking to static linking (default: no)
-C profile-generate=val -- compile the program with profiling instrumentation
-C profile-use=val -- use the given `.profdata` file for profile-guided optimization
-C relocation-model=val -- control generation of position-independent code (PIC) (`rustc --print relocation-models` for details)
-C remark=val -- print remarks for these optimization passes (space separated, or "all")
-C rpath=val -- set rpath values in libs/exes (default: no)
-C save-temps=val -- save all temporary output files during compilation (default: no)
-C soft-float=val -- use soft float ABI (*eabihf targets only) (default: no)
-C split-debuginfo=val -- how to handle split-debuginfo, a platform-specific option
-C strip=val -- tell the linker which information to strip (`none` (default), `debuginfo` or `symbols`)
-C symbol-mangling-version=val -- which mangling version to use for symbol names ('legacy' (default) or 'v0')
-C target-cpu=val -- select target processor (`rustc --print target-cpus` for details)
-C target-feature=val -- target specific attributes. (`rustc --print target-features` for details). This feature is unsafe.

6
tests/rustdoc-ui/z-help.rs
View File

@ -1,6 +0,0 @@
// check-pass
// compile-flags: -Zhelp
// check-stdout
// regex-error-pattern: -Z\s+self-profile
pub struct Foo;

220
tests/rustdoc-ui/z-help.stdout
View File

@ -1,220 +0,0 @@
-Z allow-features=val -- only allow the listed language features to be enabled in code (comma separated)
-Z always-encode-mir=val -- encode MIR of all functions into the crate metadata (default: no)
-Z asm-comments=val -- generate comments into the assembly (may change behavior) (default: no)
-Z assert-incr-state=val -- assert that the incremental cache is in given state: either `loaded` or `not-loaded`.
-Z assume-incomplete-release=val -- make cfg(version) treat the current version as incomplete (default: no)
-Z binary-dep-depinfo=val -- include artifacts (sysroot, crate dependencies) used during compilation in dep-info (default: no)
-Z box-noalias=val -- emit noalias metadata for box (default: yes)
-Z branch-protection=val -- set options for branch target identification and pointer authentication on AArch64
-Z cf-protection=val -- instrument control-flow architecture protection
-Z cgu-partitioning-strategy=val -- the codegen unit partitioning strategy to use
-Z codegen-backend=val -- the backend to use
-Z combine-cgu=val -- combine CGUs into a single one
-Z crate-attr=val -- inject the given attribute in the crate
-Z debug-info-for-profiling=val -- emit discriminators and other data necessary for AutoFDO
-Z debug-macros=val -- emit line numbers debug info inside macros (default: no)
-Z deduplicate-diagnostics=val -- deduplicate identical diagnostics (default: yes)
-Z dep-info-omit-d-target=val -- in dep-info output, omit targets for tracking dependencies of the dep-info files themselves (default: no)
-Z dep-tasks=val -- print tasks that execute and the color their dep node gets (requires debug build) (default: no)
-Z diagnostic-width=val -- set the current output width for diagnostic truncation
-Z dlltool=val -- import library generation tool (windows-gnu only)
-Z dont-buffer-diagnostics=val -- emit diagnostics rather than buffering (breaks NLL error downgrading, sorting) (default: no)
-Z drop-tracking=val -- enables drop tracking in generators (default: no)
-Z drop-tracking-mir=val -- enables drop tracking on MIR in generators (default: no)
-Z dual-proc-macros=val -- load proc macros for both target and host, but only link to the target (default: no)
-Z dump-dep-graph=val -- dump the dependency graph to $RUST_DEP_GRAPH (default: /tmp/dep_graph.gv) (default: no)
-Z dump-drop-tracking-cfg=val -- dump drop-tracking control-flow graph as a `.dot` file (default: no)
-Z dump-mir=val -- dump MIR state to file.
`val` is used to select which passes and functions to dump. For example:
`all` matches all passes and functions,
`foo` matches all passes for functions whose name contains 'foo',
`foo & ConstProp` only the 'ConstProp' pass for function names containing 'foo',
`foo | bar` all passes for function names containing 'foo' or 'bar'.
-Z dump-mir-dataflow=val -- in addition to `.mir` files, create graphviz `.dot` files with dataflow results (default: no)
-Z dump-mir-dir=val -- the directory the MIR is dumped into (default: `mir_dump`)
-Z dump-mir-exclude-pass-number=val -- exclude the pass number when dumping MIR (used in tests) (default: no)
-Z dump-mir-graphviz=val -- in addition to `.mir` files, create graphviz `.dot` files (and with `-Z instrument-coverage`, also create a `.dot` file for the MIR-derived coverage graph) (default: no)
-Z dump-mir-spanview=val -- in addition to `.mir` files, create `.html` files to view spans for all `statement`s (including terminators), only `terminator` spans, or computed `block` spans (one span encompassing a block's terminator and all statements). If `-Z instrument-coverage` is also enabled, create an additional `.html` file showing the computed coverage spans.
-Z dump-mono-stats=val -- output statistics about monomorphization collection
-Z dump-mono-stats-format=val -- the format to use for -Z dump-mono-stats (`markdown` (default) or `json`)
-Z dwarf-version=val -- version of DWARF debug information to emit (default: 2 or 4, depending on platform)
-Z dylib-lto=val -- enables LTO for dylib crate type
-Z emit-stack-sizes=val -- emit a section containing stack size metadata (default: no)
-Z emit-thin-lto=val -- emit the bc module with thin LTO info (default: yes)
-Z export-executable-symbols=val -- export symbols from executables, as if they were dynamic libraries
-Z extra-const-ub-checks=val -- turns on more checks to detect const UB, which can be slow (default: no)
-Z fewer-names=val -- reduce memory use by retaining fewer names within compilation artifacts (LLVM-IR) (default: no)
-Z flatten-format-args=val -- flatten nested format_args!() and literals into a simplified format_args!() call (default: no)
-Z force-unstable-if-unmarked=val -- force all crates to be `rustc_private` unstable (default: no)
-Z fuel=val -- set the optimization fuel quota for a crate
-Z function-sections=val -- whether each function should go in its own section
-Z future-incompat-test=val -- forces all lints to be future incompatible, used for internal testing (default: no)
-Z gcc-ld=val -- implementation of ld used by cc
-Z graphviz-dark-mode=val -- use dark-themed colors in graphviz output (default: no)
-Z graphviz-font=val -- use the given `fontname` in graphviz output; can be overridden by setting environment variable `RUSTC_GRAPHVIZ_FONT` (default: `Courier, monospace`)
-Z hir-stats=val -- print some statistics about AST and HIR (default: no)
-Z human-readable-cgu-names=val -- generate human-readable, predictable names for codegen units (default: no)
-Z identify-regions=val -- display unnamed regions as `'<id>`, using a non-ident unique id (default: no)
-Z incremental-ignore-spans=val -- ignore spans during ICH computation -- used for testing (default: no)
-Z incremental-info=val -- print high-level information about incremental reuse (or the lack thereof) (default: no)
-Z incremental-relative-spans=val -- hash spans relative to their parent item for incr. comp. (default: no)
-Z incremental-verify-ich=val -- verify incr. comp. hashes of green query instances (default: no)
-Z inline-in-all-cgus=val -- control whether `#[inline]` functions are in all CGUs
-Z inline-llvm=val -- enable LLVM inlining (default: yes)
-Z inline-mir=val -- enable MIR inlining (default: no)
-Z inline-mir-hint-threshold=val -- inlining threshold for functions with inline hint (default: 100)
-Z inline-mir-threshold=val -- a default MIR inlining threshold (default: 50)
-Z input-stats=val -- gather statistics about the input (default: no)
-Z instrument-coverage=val -- instrument the generated code to support LLVM source-based code coverage reports (note, the compiler build config must include `profiler = true`); implies `-C symbol-mangling-version=v0`. Optional values are:
`=all` (implicit value)
`=except-unused-generics`
`=except-unused-functions`
`=off` (default)
-Z instrument-mcount=val -- insert function instrument code for mcount-based tracing (default: no)
-Z instrument-xray=val -- insert function instrument code for XRay-based tracing (default: no)
Optional extra settings:
`=always`
`=never`
`=ignore-loops`
`=instruction-threshold=N`
`=skip-entry`
`=skip-exit`
Multiple options can be combined with commas.
-Z keep-hygiene-data=val -- keep hygiene data after analysis (default: no)
-Z layout-seed=val -- seed layout randomization
-Z link-directives=val -- honor #[link] directives in the compiled crate (default: yes)
-Z link-native-libraries=val -- link native libraries in the linker invocation (default: yes)
-Z link-only=val -- link the `.rlink` file generated by `-Z no-link` (default: no)
-Z llvm-plugins=val -- a list LLVM plugins to enable (space separated)
-Z llvm-time-trace=val -- generate JSON tracing data file from LLVM data (default: no)
-Z location-detail=val -- what location details should be tracked when using caller_location, either `none`, or a comma separated list of location details, for which valid options are `file`, `line`, and `column` (default: `file,line,column`)
-Z lower-impl-trait-in-trait-to-assoc-ty=val -- modify the lowering strategy for `impl Trait` in traits so that they are lowered to generic associated types
-Z ls=val -- list the symbols defined by a library crate (default: no)
-Z macro-backtrace=val -- show macro backtraces (default: no)
-Z maximal-hir-to-mir-coverage=val -- save as much information as possible about the correspondence between MIR and HIR as source scopes (default: no)
-Z merge-functions=val -- control the operation of the MergeFunctions LLVM pass, taking the same values as the target option of the same name
-Z meta-stats=val -- gather metadata statistics (default: no)
-Z mir-emit-retag=val -- emit Retagging MIR statements, interpreted e.g., by miri; implies -Zmir-opt-level=0 (default: no)
-Z mir-enable-passes=val -- use like `-Zmir-enable-passes=+DestProp,-InstCombine`. Forces the specified passes to be enabled, overriding all other checks. Passes that are not specified are enabled or disabled by other flags as usual.
-Z mir-opt-level=val -- MIR optimization level (0-4; default: 1 in non optimized builds and 2 in optimized builds)
-Z mir-pretty-relative-line-numbers=val -- use line numbers relative to the function in mir pretty printing
-Z move-size-limit=val -- the size at which the `large_assignments` lint starts to be emitted
-Z mutable-noalias=val -- emit noalias metadata for mutable references (default: yes)
-Z nll-facts=val -- dump facts from NLL analysis into side files (default: no)
-Z nll-facts-dir=val -- the directory the NLL facts are dumped into (default: `nll-facts`)
-Z no-analysis=val -- parse and expand the source, but run no analysis
-Z no-codegen=val -- run all passes except codegen; no output
-Z no-generate-arange-section=val -- omit DWARF address ranges that give faster lookups
-Z no-jump-tables=val -- disable the jump tables and lookup tables that can be generated from a switch case lowering
-Z no-leak-check=val -- disable the 'leak check' for subtyping; unsound, but useful for tests
-Z no-link=val -- compile without linking
-Z no-parallel-llvm=val -- run LLVM in non-parallel mode (while keeping codegen-units and ThinLTO)
-Z no-profiler-runtime=val -- prevent automatic injection of the profiler_builtins crate
-Z no-unique-section-names=val -- do not use unique names for text and data sections when -Z function-sections is used
-Z normalize-docs=val -- normalize associated items in rustdoc when generating documentation
-Z oom=val -- panic strategy for out-of-memory handling
-Z osx-rpath-install-name=val -- pass `-install_name @rpath/...` to the macOS linker (default: no)
-Z packed-bundled-libs=val -- change rlib format to store native libraries as archives
-Z panic-abort-tests=val -- support compiling tests with panic=abort (default: no)
-Z panic-in-drop=val -- panic strategy for panics in drops
-Z parse-only=val -- parse only; do not compile, assemble, or link (default: no)
-Z perf-stats=val -- print some performance-related statistics (default: no)
-Z plt=val -- whether to use the PLT when calling into shared libraries;
only has effect for PIC code on systems with ELF binaries
(default: PLT is disabled if full relro is enabled)
-Z polonius=val -- enable polonius-based borrow-checker (default: no)
-Z polymorphize=val -- perform polymorphization analysis
-Z pre-link-arg=val -- a single extra argument to prepend the linker invocation (can be used several times)
-Z pre-link-args=val -- extra arguments to prepend to the linker invocation (space separated)
-Z precise-enum-drop-elaboration=val -- use a more precise version of drop elaboration for matches on enums (default: yes). This results in better codegen, but has caused miscompilations on some tier 2 platforms. See #77382 and #74551.
-Z print-fuel=val -- make rustc print the total optimization fuel used by a crate
-Z print-llvm-passes=val -- print the LLVM optimization passes being run (default: no)
-Z print-mono-items=val -- print the result of the monomorphization collection pass
-Z print-type-sizes=val -- print layout information for each type encountered (default: no)
-Z proc-macro-backtrace=val -- show backtraces for panics during proc-macro execution (default: no)
-Z proc-macro-execution-strategy=val -- how to run proc-macro code (default: same-thread)
-Z profile=val -- insert profiling code (default: no)
-Z profile-closures=val -- profile size of closures
-Z profile-emit=val -- file path to emit profiling data at runtime when using 'profile' (default based on relative source path)
-Z profile-sample-use=val -- use the given `.prof` file for sampled profile-guided optimization (also known as AutoFDO)
-Z profiler-runtime=val -- name of the profiler runtime crate to automatically inject (default: `profiler_builtins`)
-Z query-dep-graph=val -- enable queries of the dependency graph for regression testing (default: no)
-Z randomize-layout=val -- randomize the layout of types (default: no)
-Z relax-elf-relocations=val -- whether ELF relocations can be relaxed
-Z relro-level=val -- choose which RELRO level to use
-Z remap-cwd-prefix=val -- remap paths under the current working directory to this path prefix
-Z report-delayed-bugs=val -- immediately print bugs registered with `delay_span_bug` (default: no)
-Z sanitizer=val -- use a sanitizer
-Z sanitizer-memory-track-origins=val -- enable origins tracking in MemorySanitizer
-Z sanitizer-recover=val -- enable recovery for selected sanitizers
-Z saturating-float-casts=val -- make float->int casts UB-free: numbers outside the integer type's range are clipped to the max/min integer respectively, and NaN is mapped to 0 (default: yes)
-Z self-profile=val -- run the self profiler and output the raw event data
-Z self-profile-counter=val -- counter used by the self profiler (default: `wall-time`), one of:
`wall-time` (monotonic clock, i.e. `std::time::Instant`)
`instructions:u` (retired instructions, userspace-only)
`instructions-minus-irqs:u` (subtracting hardware interrupt counts for extra accuracy)
-Z self-profile-events=val -- specify the events recorded by the self profiler;
for example: `-Z self-profile-events=default,query-keys`
all options: none, all, default, generic-activity, query-provider, query-cache-hit
query-blocked, incr-cache-load, incr-result-hashing, query-keys, function-args, args, llvm, artifact-sizes
-Z share-generics=val -- make the current crate share its generic instantiations
-Z show-span=val -- show spans for compiler debugging (expr|pat|ty)
-Z simulate-remapped-rust-src-base=val -- simulate the effect of remap-debuginfo = true at bootstrapping by remapping path to rust's source base directory. only meant for testing purposes
-Z span-debug=val -- forward proc_macro::Span's `Debug` impl to `Span`
-Z span-free-formats=val -- exclude spans when debug-printing compiler state (default: no)
-Z split-dwarf-inlining=val -- provide minimal debug info in the object/executable to facilitate online symbolication/stack traces in the absence of .dwo/.dwp files when using Split DWARF
-Z split-dwarf-kind=val -- split dwarf variant (only if -Csplit-debuginfo is enabled and on relevant platform)
(default: `split`)
`split`: sections which do not require relocation are written into a DWARF object (`.dwo`)
file which is ignored by the linker
`single`: sections which do not require relocation are written into object file but ignored
by the linker
-Z src-hash-algorithm=val -- hash algorithm of source files in debug info (`md5`, `sha1`, or `sha256`)
-Z stack-protector=val -- control stack smash protection strategy (`rustc --print stack-protector-strategies` for details)
-Z strict-init-checks=val -- control if mem::uninitialized and mem::zeroed panic on more UB
-Z strip=val -- tell the linker which information to strip (`none` (default), `debuginfo` or `symbols`)
-Z symbol-mangling-version=val -- which mangling version to use for symbol names ('legacy' (default) or 'v0')
-Z teach=val -- show extended diagnostic help (default: no)
-Z temps-dir=val -- the directory the intermediate files are written to
-Z terminal-urls=val -- use the OSC 8 hyperlink terminal specification to print hyperlinks in the compiler output
-Z thinlto=val -- enable ThinLTO when possible
-Z thir-unsafeck=val -- use the THIR unsafety checker (default: no)
-Z threads=val -- use a thread pool with N threads
-Z time-llvm-passes=val -- measure time of each LLVM pass (default: no)
-Z time-passes=val -- measure time of each rustc pass (default: no)
-Z time-passes-format=val -- the format to use for -Z time-passes (`text` (default) or `json`)
-Z tiny-const-eval-limit=val -- sets a tiny, non-configurable limit for const eval; useful for compiler tests
-Z tls-model=val -- choose the TLS model to use (`rustc --print tls-models` for details)
-Z trace-macros=val -- for every macro invocation, print its name and arguments (default: no)
-Z track-diagnostics=val -- tracks where in rustc a diagnostic was emitted
-Z trait-solver=val -- specify the trait solver mode used by rustc (default: classic)
-Z translate-additional-ftl=val -- additional fluent translation to preferentially use (for testing translation)
-Z translate-directionality-markers=val -- emit directionality isolation markers in translated diagnostics
-Z translate-lang=val -- language identifier for diagnostic output
-Z translate-remapped-path-to-local-path=val -- translate remapped paths into local paths when possible (default: yes)
-Z trap-unreachable=val -- generate trap instructions for unreachable intrinsics (default: use target setting, usually yes)
-Z treat-err-as-bug=val -- treat error number `val` that occurs as bug
-Z trim-diagnostic-paths=val -- in diagnostics, use heuristics to shorten paths referring to items
-Z tune-cpu=val -- select processor to schedule for (`rustc --print target-cpus` for details)
-Z ui-testing=val -- emit compiler diagnostics in a form suitable for UI testing (default: no)
-Z uninit-const-chunk-threshold=val -- allow generating const initializers with mixed init/uninit chunks, and set the maximum number of chunks for which this is allowed (default: 16)
-Z unleash-the-miri-inside-of-you=val -- take the brakes off const evaluation. NOTE: this is unsound (default: no)
-Z unpretty=val -- present the input source, unstable (and less-pretty) variants;
`normal`, `identified`,
`expanded`, `expanded,identified`,
`expanded,hygiene` (with internal representations),
`ast-tree` (raw AST before expansion),
`ast-tree,expanded` (raw AST after expansion),
`hir` (the HIR), `hir,identified`,
`hir,typed` (HIR with types for each node),
`hir-tree` (dump the raw HIR),
`mir` (the MIR), or `mir-cfg` (graphviz formatted MIR)
-Z unsound-mir-opts=val -- enable unsound and buggy MIR optimizations (default: no)
-Z unstable-options=val -- adds unstable command line options to rustc interface (default: no)
-Z use-ctors-section=val -- use legacy .ctors section for initializers rather than .init_array
-Z validate-mir=val -- validate MIR after each transformation
-Z verbose=val -- in general, enable more debug printouts (default: no)
-Z verify-llvm-ir=val -- verify LLVM IR (default: no)
-Z virtual-function-elimination=val -- enables dead virtual function elimination optimization. Requires `-Clto[=[fat,yes]]`
-Z wasi-exec-model=val -- whether to build a wasi command or reactor

7
tests/ui/higher-rank-trait-bounds/issue-95230.new.stderr
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@ -1,9 +1,10 @@
error[E0282]: type annotations needed
error[E0275]: overflow evaluating the requirement `for<'a> &'a mut Bar well-formed`
--> $DIR/issue-95230.rs:9:13
|
LL | for<'a> &'a mut Self:;
| ^^^^^^^^^^^^ cannot infer type for mutable reference `&'a mut Bar`
| ^^^^^^^^^^^^
|
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`issue_95230`)
note: required by a bound in `Bar`
--> $DIR/issue-95230.rs:9:13
|
@ -15,4 +16,4 @@ LL | for<'a> &'a mut Self:;
error: aborting due to previous error
For more information about this error, try `rustc --explain E0282`.
For more information about this error, try `rustc --explain E0275`.

45
tests/ui/lexer/issue-108019-bad-emoji-recovery.rs
View File

@ -1,45 +0,0 @@
#![allow(unused_labels)]
// FIXME(#108019): outdated Unicode table
// fn foo() {
// '🥺 loop {
// break
// }
// }
fn bar() {
'🐱 loop {
//~^ ERROR labeled expression must be followed by `:`
//~| ERROR lifetimes or labels cannot contain emojis
break
}
}
fn qux() {
'a🐱 loop {
//~^ ERROR labeled expression must be followed by `:`
//~| ERROR lifetimes or labels cannot contain emojis
break
}
}
fn quux() {
'1🐱 loop {
//~^ ERROR labeled expression must be followed by `:`
//~| ERROR lifetimes or labels cannot start with a number
break
}
}
fn x<'🐱>() -> &'🐱 () {
//~^ ERROR lifetimes or labels cannot contain emojis
//~| ERROR lifetimes or labels cannot contain emojis
&()
}
fn y() {
'a🐱: loop {}
//~^ ERROR lifetimes or labels cannot contain emojis
}
fn main() {}

86
tests/ui/lexer/issue-108019-bad-emoji-recovery.stderr
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@ -1,86 +0,0 @@
error: labeled expression must be followed by `:`
--> $DIR/issue-108019-bad-emoji-recovery.rs:11:5
|
LL | '🐱 loop {
| ^--- help: add `:` after the label
| |
| _____the label
| |
LL | |
LL | |
LL | | break
LL | | }
| |_____^
|
= note: labels are used before loops and blocks, allowing e.g., `break 'label` to them
error: labeled expression must be followed by `:`
--> $DIR/issue-108019-bad-emoji-recovery.rs:19:5
|
LL | 'a🐱 loop {
| ^---- help: add `:` after the label
| |
| _____the label
| |
LL | |
LL | |
LL | | break
LL | | }
| |_____^
|
= note: labels are used before loops and blocks, allowing e.g., `break 'label` to them
error: labeled expression must be followed by `:`
--> $DIR/issue-108019-bad-emoji-recovery.rs:27:5
|
LL | '1🐱 loop {
| ^---- help: add `:` after the label
| |
| _____the label
| |
LL | |
LL | |
LL | | break
LL | | }
| |_____^
|
= note: labels are used before loops and blocks, allowing e.g., `break 'label` to them
error: lifetimes or labels cannot contain emojis
--> $DIR/issue-108019-bad-emoji-recovery.rs:11:5
|
LL | '🐱 loop {
| ^^^
error: lifetimes or labels cannot contain emojis
--> $DIR/issue-108019-bad-emoji-recovery.rs:19:5
|
LL | 'a🐱 loop {
| ^^^^
error: lifetimes or labels cannot start with a number
--> $DIR/issue-108019-bad-emoji-recovery.rs:27:5
|
LL | '1🐱 loop {
| ^^^^
error: lifetimes or labels cannot contain emojis
--> $DIR/issue-108019-bad-emoji-recovery.rs:34:6
|
LL | fn x<'🐱>() -> &'🐱 () {
| ^^^
error: lifetimes or labels cannot contain emojis
--> $DIR/issue-108019-bad-emoji-recovery.rs:34:16
|
LL | fn x<'🐱>() -> &'🐱 () {
| ^^^
error: lifetimes or labels cannot contain emojis
--> $DIR/issue-108019-bad-emoji-recovery.rs:41:5
|
LL | 'a🐱: loop {}
| ^^^^
error: aborting due to 9 previous errors

49
tests/ui/methods/inherent-bound-in-probe.rs Normal file
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@ -0,0 +1,49 @@
// normalize-stderr-test: "long-type-\d+" -> "long-type-hash"
// Fixes #110131
//
// The issue is that we were constructing an `ImplDerived` cause code for the
// `&'a T: IntoIterator<Item = &'a u8>` obligation for `Helper::new`, which is
// incorrect because derived obligations are only expected to come from *traits*.
struct SeqBuffer<'a, T>
where
&'a T: IntoIterator<Item = &'a u8>,
{
iter: <&'a T as IntoIterator>::IntoIter,
}
struct Helper<'a, T>
where
&'a T: IntoIterator<Item = &'a u8>,
{
buf: SeqBuffer<'a, T>,
}
impl<'a, T> Helper<'a, T>
where
&'a T: IntoIterator<Item = &'a u8>,
{
fn new(sq: &'a T) -> Self {
loop {}
}
}
struct BitReaderWrapper<T>(T);
impl<'a, T> IntoIterator for &'a BitReaderWrapper<T>
where
&'a T: IntoIterator<Item = &'a u8>,
{
type Item = u32;
type IntoIter = Helper<'a, T>;
//~^ ERROR `Helper<'a, T>` is not an iterator
fn into_iter(self) -> Self::IntoIter {
Helper::new(&self.0)
//~^ ERROR overflow evaluating the requirement `&_: IntoIterator`
}
}
fn main() {}

38
tests/ui/methods/inherent-bound-in-probe.stderr Normal file
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@ -0,0 +1,38 @@
error[E0277]: `Helper<'a, T>` is not an iterator
--> $DIR/inherent-bound-in-probe.rs:40:21
|
LL | type IntoIter = Helper<'a, T>;
| ^^^^^^^^^^^^^ `Helper<'a, T>` is not an iterator
|
= help: the trait `Iterator` is not implemented for `Helper<'a, T>`
note: required by a bound in `std::iter::IntoIterator::IntoIter`
--> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL
error[E0275]: overflow evaluating the requirement `&_: IntoIterator`
--> $DIR/inherent-bound-in-probe.rs:44:17
|
LL | Helper::new(&self.0)
| ^^^
|
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`inherent_bound_in_probe`)
note: required for `&BitReaderWrapper<_>` to implement `IntoIterator`
--> $DIR/inherent-bound-in-probe.rs:34:13
|
LL | impl<'a, T> IntoIterator for &'a BitReaderWrapper<T>
| ^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^
LL | where
LL | &'a T: IntoIterator<Item = &'a u8>,
| ------------- unsatisfied trait bound introduced here
= note: 126 redundant requirements hidden
= note: required for `&BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<...>>>>>` to implement `IntoIterator`
= note: the full type name has been written to '$TEST_BUILD_DIR/methods/inherent-bound-in-probe/inherent-bound-in-probe.long-type-hash.txt'
note: required by a bound in `Helper<'a, T>`
--> $DIR/inherent-bound-in-probe.rs:25:25
|
LL | &'a T: IntoIterator<Item = &'a u8>,
| ^^^^^^^^^^^^^ required by this bound in `Helper<'a, T>`
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0275, E0277.
For more information about an error, try `rustc --explain E0275`.

4
tests/ui/parser/numeric-lifetime.rs
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@ -1,6 +1,6 @@
struct S<'1> { s: &'1 usize }
//~^ ERROR lifetimes or labels cannot start with a number
//~| ERROR lifetimes or labels cannot start with a number
//~^ ERROR lifetimes cannot start with a number
//~| ERROR lifetimes cannot start with a number
fn main() {
// verify that the parse error doesn't stop type checking
let x: usize = "";

4
tests/ui/parser/numeric-lifetime.stderr
View File

@ -6,13 +6,13 @@ LL | let x: usize = "";
| |
| expected due to this
error: lifetimes or labels cannot start with a number
error: lifetimes cannot start with a number
--> $DIR/numeric-lifetime.rs:1:10
|
LL | struct S<'1> { s: &'1 usize }
| ^^
error: lifetimes or labels cannot start with a number
error: lifetimes cannot start with a number
--> $DIR/numeric-lifetime.rs:1:20
|
LL | struct S<'1> { s: &'1 usize }

7
tests/ui/test-attrs/issue-109816.rs Normal file
View File

@ -0,0 +1,7 @@
// compile-flags: --test
fn align_offset_weird_strides() {
#[test]
//~^ ERROR the `#[test]` attribute may only be used on a non-associated function
struct A5(u32, u8);
}

16
tests/ui/test-attrs/issue-109816.stderr Normal file
View File

@ -0,0 +1,16 @@
error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/issue-109816.rs:4:5
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL |
LL | struct A5(u32, u8);
| ------------------- expected a non-associated function, found a struct
|
help: replace with conditional compilation to make the item only exist when tests are being run
|
LL | #[cfg(test)]
|
error: aborting due to previous error

6
tests/ui/test-attrs/test-attr-non-associated-functions.rs
View File

@ -1,18 +1,16 @@
// #[test] attribute is not allowed on associated functions or methods
// reworded error message
// compile-flags:--test
struct A {}
impl A {
#[test]
//~^ ERROR the `#[test]` attribute may only be used on a non-associated function
fn new() -> A {
//~^ ERROR `#[test]` attribute is only allowed on non associated functions
A {}
}
#[test]
//~^ ERROR the `#[test]` attribute may only be used on a non-associated function
fn recovery_witness() -> A {
//~^ ERROR `#[test]` attribute is only allowed on non associated functions
A {}
}
}

32
tests/ui/test-attrs/test-attr-non-associated-functions.stderr
View File

@ -1,20 +1,24 @@
error: `#[test]` attribute is only allowed on non associated functions
--> $DIR/test-attr-non-associated-functions.rs:9:5
error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-attr-non-associated-functions.rs:6:5
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
|
help: replace with conditional compilation to make the item only exist when tests are being run
|
LL | #[cfg(test)]
|
LL | / fn new() -> A {
LL | |
LL | | A {}
LL | | }
| |_____^
error: `#[test]` attribute is only allowed on non associated functions
--> $DIR/test-attr-non-associated-functions.rs:14:5
error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-attr-non-associated-functions.rs:11:5
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
|
help: replace with conditional compilation to make the item only exist when tests are being run
|
LL | #[cfg(test)]
|
LL | / fn recovery_witness() -> A {
LL | |
LL | | A {}
LL | | }
| |_____^
error: aborting due to 2 previous errors

24
tests/ui/test-attrs/test-on-not-fn.stderr
View File

@ -2,7 +2,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:3:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | mod test {}
| ----------- expected a non-associated function, found a module
|
@ -15,7 +15,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:6:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | / mod loooooooooooooong_teeeeeeeeeest {
LL | | /*
LL | | this is a comment
@ -34,7 +34,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:20:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | extern "C" {}
| ------------- expected a non-associated function, found an extern block
|
@ -47,7 +47,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:23:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | trait Foo {}
| ------------ expected a non-associated function, found a trait
|
@ -60,7 +60,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:26:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | impl Foo for i32 {}
| ------------------- expected a non-associated function, found an implementation
|
@ -73,7 +73,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:29:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | const FOO: i32 = -1_i32;
| ------------------------ expected a non-associated function, found a constant item
|
@ -86,7 +86,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:32:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | static BAR: u64 = 10_000_u64;
| ----------------------------- expected a non-associated function, found a static item
|
@ -99,7 +99,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:35:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | / enum MyUnit {
LL | | Unit,
LL | | }
@ -114,7 +114,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:40:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | struct NewI32(i32);
| ------------------- expected a non-associated function, found a struct
|
@ -127,7 +127,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:43:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | / union Spooky {
LL | | x: i32,
LL | | y: u32,
@ -143,7 +143,7 @@ error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:50:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | #[derive(Copy, Clone, Debug)]
LL | / struct MoreAttrs {
LL | | a: i32,
@ -160,7 +160,7 @@ warning: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:61:1
|
LL | #[test]
| ^^^^^^^ the `#[test]` macro causes a function to be run on a test and has no effect on non-functions
| ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
LL | foo!();
| ------- expected a non-associated function, found an item macro invocation
|

2
tests/ui/traits/new-solver/recursive-self-normalization-2.rs
View File

@ -13,7 +13,7 @@ fn needs_bar<S: Bar>() {}
fn test<T: Foo1<Assoc1 = <T as Foo2>::Assoc2> + Foo2<Assoc2 = <T as Foo1>::Assoc1>>() {
needs_bar::<T::Assoc1>();
//~^ ERROR type annotations needed
//~^ ERROR overflow evaluating the requirement `<T as Foo1>::Assoc1: Bar`
}
fn main() {}

6
tests/ui/traits/new-solver/recursive-self-normalization-2.stderr
View File

@ -1,10 +1,10 @@
error[E0283]: type annotations needed: cannot satisfy `<T as Foo1>::Assoc1: Bar`
error[E0275]: overflow evaluating the requirement `<T as Foo1>::Assoc1: Bar`
--> $DIR/recursive-self-normalization-2.rs:15:5
|
LL | needs_bar::<T::Assoc1>();
| ^^^^^^^^^^^^^^^^^^^^^^
|
= note: cannot satisfy `<T as Foo1>::Assoc1: Bar`
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`recursive_self_normalization_2`)
note: required by a bound in `needs_bar`
--> $DIR/recursive-self-normalization-2.rs:12:17
|
@ -13,4 +13,4 @@ LL | fn needs_bar<S: Bar>() {}
error: aborting due to previous error
For more information about this error, try `rustc --explain E0283`.
For more information about this error, try `rustc --explain E0275`.

2
tests/ui/traits/new-solver/recursive-self-normalization.rs
View File

@ -9,7 +9,7 @@ fn needs_bar<S: Bar>() {}
fn test<T: Foo<Assoc = <T as Foo>::Assoc>>() {
needs_bar::<T::Assoc>();
//~^ ERROR type annotations needed
//~^ ERROR overflow evaluating the requirement `<T as Foo>::Assoc: Bar`
}
fn main() {}

6
tests/ui/traits/new-solver/recursive-self-normalization.stderr
View File

@ -1,10 +1,10 @@
error[E0283]: type annotations needed: cannot satisfy `<T as Foo>::Assoc: Bar`
error[E0275]: overflow evaluating the requirement `<T as Foo>::Assoc: Bar`
--> $DIR/recursive-self-normalization.rs:11:5
|
LL | needs_bar::<T::Assoc>();
| ^^^^^^^^^^^^^^^^^^^^^
|
= note: cannot satisfy `<T as Foo>::Assoc: Bar`
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`recursive_self_normalization`)
note: required by a bound in `needs_bar`
--> $DIR/recursive-self-normalization.rs:8:17
|
@ -13,4 +13,4 @@ LL | fn needs_bar<S: Bar>() {}
error: aborting due to previous error
For more information about this error, try `rustc --explain E0283`.
For more information about this error, try `rustc --explain E0275`.