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Auto merge of #126056 - matthiaskrgr:rollup-ytwg62v, r=matthiaskrgr

Browse Source 
Rollup of 6 pull requests

Successful merges:

 - #124731 (Add translation support by mdbook-i18n-helpers to bootstrap)
 - #125168 (Match ergonomics 2024: align implementation with RFC)
 - #125925 (Don't trigger `unsafe_op_in_unsafe_fn` for deprecated safe fns)
 - #125987 (When `derive`ing, account for HRTB on `BareFn` fields)
 - #126045 (check_expr_struct_fields: taint context with errors if struct definit…)
 - #126048 (Fix typos in cargo-specifics.md)

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2024-06-06 05:56:06 +00:00
commit 2b6a34273d
35 changed files with 642 additions and 425 deletions
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148
Cargo.lock
View File

@ -372,7 +372,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6798148dccfbff0fae41c7574d2fa8f1ef3492fba0face179de5d8d447d67b05"
dependencies = [
"memchr",
"regex-automata 0.3.9",
"regex-automata 0.3.7",
"serde",
]
@ -2206,6 +2206,21 @@ dependencies = [
"vcpkg",
]
[[package]]
name = "line-wrap"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dd1bc4d24ad230d21fb898d1116b1801d7adfc449d42026475862ab48b11e70e"
[[package]]
name = "linereader"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d921fea6860357575519aca014c6e22470585accdd543b370c404a8a72d0dd1d"
dependencies = [
"memchr",
]
[[package]]
name = "linkchecker"
version = "0.1.0"
@ -2214,6 +2229,12 @@ dependencies = [
"regex",
]
[[package]]
name = "linked-hash-map"
version = "0.5.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
[[package]]
name = "lint-docs"
version = "0.1.0"
@ -2364,6 +2385,25 @@ dependencies = [
"topological-sort",
]
[[package]]
name = "mdbook-i18n-helpers"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f1f71f5961d6f3376e1ff3e5989c2e3ecccc3e8a00f3a3acde446847f84852e4"
dependencies = [
"anyhow",
"chrono",
"mdbook",
"polib",
"pulldown-cmark 0.10.3",
"pulldown-cmark-to-cmark",
"regex",
"semver",
"serde_json",
"syntect",
"textwrap",
]
[[package]]
name = "mdbook-trpl-listing"
version = "0.1.0"
@ -2650,6 +2690,28 @@ version = "1.19.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
[[package]]
name = "onig"
version = "6.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8c4b31c8722ad9171c6d77d3557db078cab2bd50afcc9d09c8b315c59df8ca4f"
dependencies = [
"bitflags 1.3.2",
"libc",
"once_cell",
"onig_sys",
]
[[package]]
name = "onig_sys"
version = "69.8.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7b829e3d7e9cc74c7e315ee8edb185bf4190da5acde74afd7fc59c35b1f086e7"
dependencies = [
"cc",
"pkg-config",
]
[[package]]
name = "opener"
version = "0.6.1"
@ -2968,6 +3030,29 @@ version = "0.3.30"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
[[package]]
name = "plist"
version = "1.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d9d34169e64b3c7a80c8621a48adaf44e0cf62c78a9b25dd9dd35f1881a17cf9"
dependencies = [
"base64",
"indexmap",
"line-wrap",
"quick-xml",
"serde",
"time",
]
[[package]]
name = "polib"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6b393b155cf9be86249cba1b56cc81be0e6212c66d94ac0d76d37a1761f3bb1b"
dependencies = [
"linereader",
]
[[package]]
name = "polonius-engine"
version = "0.13.0"
@ -3126,6 +3211,15 @@ version = "0.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e9e1dcb320d6839f6edb64f7a4a59d39b30480d4d1765b56873f7c858538a5fe"
[[package]]
name = "quick-xml"
version = "0.31.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1004a344b30a54e2ee58d66a71b32d2db2feb0a31f9a2d302bf0536f15de2a33"
dependencies = [
"memchr",
]
[[package]]
name = "quine-mc_cluskey"
version = "0.2.4"
@ -3261,12 +3355,13 @@ dependencies = [
[[package]]
name = "regex"
version = "1.8.4"
version = "1.9.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d0ab3ca65655bb1e41f2a8c8cd662eb4fb035e67c3f78da1d61dffe89d07300f"
checksum = "12de2eff854e5fa4b1295edd650e227e9d8fb0c9e90b12e7f36d6a6811791a29"
dependencies = [
"aho-corasick",
"memchr",
"regex-automata 0.3.7",
"regex-syntax 0.7.5",
]
@ -3290,9 +3385,14 @@ dependencies = [
[[package]]
name = "regex-automata"
version = "0.3.9"
version = "0.3.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "59b23e92ee4318893fa3fe3e6fb365258efbfe6ac6ab30f090cdcbb7aa37efa9"
checksum = "49530408a136e16e5b486e883fbb6ba058e8e4e8ae6621a77b048b314336e629"
dependencies = [
"aho-corasick",
"memchr",
"regex-syntax 0.7.5",
]
[[package]]
name = "regex-lite"
@ -3367,6 +3467,7 @@ dependencies = [
"clap",
"env_logger",
"mdbook",
"mdbook-i18n-helpers",
"mdbook-trpl-listing",
"mdbook-trpl-note",
]
@ -5372,6 +5473,28 @@ dependencies = [
"syn 2.0.64",
]
[[package]]
name = "syntect"
version = "5.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "874dcfa363995604333cf947ae9f751ca3af4522c60886774c4963943b4746b1"
dependencies = [
"bincode",
"bitflags 1.3.2",
"flate2",
"fnv",
"once_cell",
"onig",
"plist",
"regex-syntax 0.8.3",
"serde",
"serde_derive",
"serde_json",
"thiserror",
"walkdir",
"yaml-rust",
]
[[package]]
name = "sysinfo"
version = "0.30.12"
@ -5497,6 +5620,12 @@ dependencies = [
"std",
]
[[package]]
name = "textwrap"
version = "0.16.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "23d434d3f8967a09480fb04132ebe0a3e088c173e6d0ee7897abbdf4eab0f8b9"
[[package]]
name = "thin-vec"
version = "0.2.13"
@ -6476,6 +6605,15 @@ dependencies = [
"lzma-sys",
]
[[package]]
name = "yaml-rust"
version = "0.4.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
dependencies = [
"linked-hash-map",
]
[[package]]
name = "yansi-term"
version = "0.1.2"

12
compiler/rustc_builtin_macros/src/deriving/generic/mod.rs
View File

@ -412,6 +412,15 @@ fn find_type_parameters(
impl<'a, 'b> visit::Visitor<'a> for Visitor<'a, 'b> {
fn visit_ty(&mut self, ty: &'a ast::Ty) {
let stack_len = self.bound_generic_params_stack.len();
if let ast::TyKind::BareFn(bare_fn) = &ty.kind
&& !bare_fn.generic_params.is_empty()
{
// Given a field `x: for<'a> fn(T::SomeType<'a>)`, we wan't to account for `'a` so
// that we generate `where for<'a> T::SomeType<'a>: ::core::clone::Clone`. #122622
self.bound_generic_params_stack.extend(bare_fn.generic_params.iter().cloned());
}
if let ast::TyKind::Path(_, path) = &ty.kind
&& let Some(segment) = path.segments.first()
&& self.ty_param_names.contains(&segment.ident.name)
@ -422,7 +431,8 @@ fn find_type_parameters(
});
}
visit::walk_ty(self, ty)
visit::walk_ty(self, ty);
self.bound_generic_params_stack.truncate(stack_len);
}
// Place bound generic params on a stack, to extract them when a type is encountered.

3
compiler/rustc_feature/src/removed.rs
View File

@ -128,6 +128,8 @@ declare_features! (
/// Allows the use of type alias impl trait in function return positions
(removed, min_type_alias_impl_trait, "1.56.0", Some(63063),
Some("removed in favor of full type_alias_impl_trait")),
/// Make `mut` not reset the binding mode on edition >= 2024.
(removed, mut_preserve_binding_mode_2024, "1.79.0", Some(123076), Some("superseded by `ref_pat_eat_one_layer_2024`")),
(removed, needs_allocator, "1.4.0", Some(27389),
Some("subsumed by `#![feature(allocator_internals)]`")),
/// Allows use of unary negate on unsigned integers, e.g., -e for e: u8
@ -181,6 +183,7 @@ declare_features! (
(removed, pushpop_unsafe, "1.2.0", None, None),
(removed, quad_precision_float, "1.0.0", None, None),
(removed, quote, "1.33.0", Some(29601), None),
(removed, ref_pat_everywhere, "1.79.0", Some(123076), Some("superseded by `ref_pat_eat_one_layer_2024")),
(removed, reflect, "1.0.0", Some(27749), None),
/// Allows using the `#[register_attr]` attribute.
(removed, register_attr, "1.65.0", Some(66080),

4
compiler/rustc_feature/src/unstable.rs
View File

@ -529,8 +529,6 @@ declare_features! (
(unstable, more_qualified_paths, "1.54.0", Some(86935)),
/// Allows the `#[must_not_suspend]` attribute.
(unstable, must_not_suspend, "1.57.0", Some(83310)),
/// Make `mut` not reset the binding mode on edition >= 2024.
(incomplete, mut_preserve_binding_mode_2024, "1.79.0", Some(123076)),
/// Allows `mut ref` and `mut ref mut` identifier patterns.
(incomplete, mut_ref, "1.79.0", Some(123076)),
/// Allows using `#[naked]` on functions.
@ -573,8 +571,6 @@ declare_features! (
(unstable, raw_ref_op, "1.41.0", Some(64490)),
/// Makes `&` and `&mut` patterns eat only one layer of references in Rust 2024.
(incomplete, ref_pat_eat_one_layer_2024, "1.79.0", Some(123076)),
/// Allows `&` and `&mut` patterns to consume match-ergonomics-inserted references.
(incomplete, ref_pat_everywhere, "1.79.0", Some(123076)),
/// Allows using the `#[register_tool]` attribute.
(unstable, register_tool, "1.41.0", Some(66079)),
/// Allows the `#[repr(i128)]` attribute for enums.

9
compiler/rustc_hir_typeck/src/expr.rs
View File

@ -1671,6 +1671,15 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
let mut error_happened = false;
if variant.fields.len() != remaining_fields.len() {
// Some field is defined more than once. Make sure we don't try to
// instantiate this struct in static/const context.
let guar =
self.dcx().span_delayed_bug(expr.span, "struct fields have non-unique names");
self.set_tainted_by_errors(guar);
error_happened = true;
}
// Type-check each field.
for (idx, field) in hir_fields.iter().enumerate() {
let ident = tcx.adjust_ident(field.ident, variant.def_id);

156
compiler/rustc_hir_typeck/src/pat.rs
View File

@ -12,7 +12,7 @@ use rustc_infer::infer;
use rustc_middle::mir::interpret::ErrorHandled;
use rustc_middle::ty::{self, Ty, TypeVisitableExt};
use rustc_middle::{bug, span_bug};
use rustc_session::lint::builtin::NON_EXHAUSTIVE_OMITTED_PATTERNS;
use rustc_session::{lint::builtin::NON_EXHAUSTIVE_OMITTED_PATTERNS, parse::feature_err};
use rustc_span::edit_distance::find_best_match_for_name;
use rustc_span::hygiene::DesugaringKind;
use rustc_span::source_map::Spanned;
@ -335,9 +335,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
match adjust_mode {
AdjustMode::Pass => (expected, def_br, max_ref_mutbl),
AdjustMode::Reset => (expected, ByRef::No, MutblCap::Mut),
AdjustMode::Peel => {
self.peel_off_references(pat, expected, def_br, Mutability::Mut, max_ref_mutbl)
}
AdjustMode::Peel => self.peel_off_references(pat, expected, def_br, max_ref_mutbl),
}
}
@ -408,8 +406,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
pat: &'tcx Pat<'tcx>,
expected: Ty<'tcx>,
mut def_br: ByRef,
max_peelable_mutability: Mutability,
mut max_ref_mutability: MutblCap,
mut max_ref_mutbl: MutblCap,
) -> (Ty<'tcx>, ByRef, MutblCap) {
let mut expected = self.try_structurally_resolve_type(pat.span, expected);
// Peel off as many `&` or `&mut` from the scrutinee type as possible. For example,
@ -421,9 +418,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
//
// See the examples in `ui/match-defbm*.rs`.
let mut pat_adjustments = vec![];
while let ty::Ref(_, inner_ty, inner_mutability) = *expected.kind()
&& inner_mutability <= max_peelable_mutability
{
while let ty::Ref(_, inner_ty, inner_mutability) = *expected.kind() {
debug!("inspecting {:?}", expected);
debug!("current discriminant is Ref, inserting implicit deref");
@ -443,10 +438,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
});
}
if pat.span.at_least_rust_2024() && self.tcx.features().ref_pat_eat_one_layer_2024 {
def_br = def_br.cap_ref_mutability(max_ref_mutability.as_mutbl());
if self.tcx.features().ref_pat_eat_one_layer_2024 {
def_br = def_br.cap_ref_mutability(max_ref_mutbl.as_mutbl());
if def_br == ByRef::Yes(Mutability::Not) {
max_ref_mutability = MutblCap::Not;
max_ref_mutbl = MutblCap::Not;
}
}
@ -458,7 +453,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
.insert(pat.hir_id, pat_adjustments);
}
(expected, def_br, max_ref_mutability)
(expected, def_br, max_ref_mutbl)
}
fn check_pat_lit(
@ -674,17 +669,27 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
// Determine the binding mode...
let bm = match user_bind_annot {
// `mut` resets binding mode on edition <= 2021
BindingMode(ByRef::No, Mutability::Mut)
if !(pat.span.at_least_rust_2024()
&& self.tcx.features().mut_preserve_binding_mode_2024)
&& matches!(def_br, ByRef::Yes(_)) =>
{
self.typeck_results
.borrow_mut()
.rust_2024_migration_desugared_pats_mut()
.insert(pat_info.top_info.hir_id);
BindingMode(ByRef::No, Mutability::Mut)
BindingMode(ByRef::No, Mutability::Mut) if matches!(def_br, ByRef::Yes(_)) => {
if pat.span.at_least_rust_2024() && self.tcx.features().ref_pat_eat_one_layer_2024 {
if !self.tcx.features().mut_ref {
feature_err(
&self.tcx.sess,
sym::mut_ref,
pat.span.until(ident.span),
"binding cannot be both mutable and by-reference",
)
.emit();
}
BindingMode(def_br, Mutability::Mut)
} else {
// `mut` resets binding mode on edition <= 2021
self.typeck_results
.borrow_mut()
.rust_2024_migration_desugared_pats_mut()
.insert(pat_info.top_info.hir_id);
BindingMode(ByRef::No, Mutability::Mut)
}
}
BindingMode(ByRef::No, mutbl) => BindingMode(def_br, mutbl),
BindingMode(ByRef::Yes(_), _) => user_bind_annot,
@ -2126,57 +2131,47 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
mut expected: Ty<'tcx>,
mut pat_info: PatInfo<'tcx, '_>,
) -> Ty<'tcx> {
// FIXME: repace with `bool` once final decision on 1 vs 2 layers is made
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
enum MatchErgonomicsMode {
EatOneLayer,
EatTwoLayers,
Legacy,
}
let no_ref_mut_behind_and = self.tcx.features().ref_pat_eat_one_layer_2024;
let new_match_ergonomics = pat.span.at_least_rust_2024() && no_ref_mut_behind_and;
let match_ergonomics_mode =
if pat.span.at_least_rust_2024() && self.tcx.features().ref_pat_eat_one_layer_2024 {
MatchErgonomicsMode::EatOneLayer
} else if self.tcx.features().ref_pat_everywhere {
MatchErgonomicsMode::EatTwoLayers
} else {
MatchErgonomicsMode::Legacy
};
let pat_prefix_span =
inner.span.find_ancestor_inside(pat.span).map(|end| pat.span.until(end));
let mut inherited_ref_mutbl_match = false;
if match_ergonomics_mode != MatchErgonomicsMode::Legacy {
if no_ref_mut_behind_and {
if pat_mutbl == Mutability::Not {
// Prevent the inner pattern from binding with `ref mut`.
pat_info.max_ref_mutbl = pat_info.max_ref_mutbl.cap_to_weakly_not(
inner.span.find_ancestor_inside(pat.span).map(|end| pat.span.until(end)),
);
pat_info.max_ref_mutbl = pat_info.max_ref_mutbl.cap_to_weakly_not(pat_prefix_span);
}
} else {
pat_info.max_ref_mutbl = MutblCap::Mut;
}
if new_match_ergonomics {
if let ByRef::Yes(inh_mut) = pat_info.binding_mode {
inherited_ref_mutbl_match = pat_mutbl <= inh_mut;
}
// ref pattern consumes inherited reference
if inherited_ref_mutbl_match {
pat_info.binding_mode = ByRef::No;
if match_ergonomics_mode == MatchErgonomicsMode::EatOneLayer {
self.typeck_results.borrow_mut().skipped_ref_pats_mut().insert(pat.hir_id);
self.check_pat(inner, expected, pat_info);
return expected;
if pat_mutbl > inh_mut {
// Tried to match inherited `ref` with `&mut`, which is an error
let err_msg = "cannot match inherited `&` with `&mut` pattern";
let err = if let Some(span) = pat_prefix_span {
let mut err = self.dcx().struct_span_err(span, err_msg);
err.span_suggestion_verbose(
span,
"replace this `&mut` pattern with `&`",
"&",
Applicability::MachineApplicable,
);
err
} else {
self.dcx().struct_span_err(pat.span, err_msg)
};
err.emit();
}
} else if match_ergonomics_mode == MatchErgonomicsMode::EatOneLayer
&& pat_mutbl == Mutability::Mut
{
// `&mut` patterns pell off `&` references
let (new_expected, new_bm, max_ref_mutbl) = self.peel_off_references(
pat,
expected,
pat_info.binding_mode,
Mutability::Not,
pat_info.max_ref_mutbl,
);
expected = new_expected;
pat_info.binding_mode = new_bm;
pat_info.max_ref_mutbl = max_ref_mutbl;
pat_info.binding_mode = ByRef::No;
self.typeck_results.borrow_mut().skipped_ref_pats_mut().insert(pat.hir_id);
self.check_pat(inner, expected, pat_info);
return expected;
}
} else {
// Reset binding mode on old editions
@ -2189,8 +2184,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
.rust_2024_migration_desugared_pats_mut()
.insert(pat_info.top_info.hir_id);
}
pat_info.max_ref_mutbl = MutblCap::Mut;
}
let tcx = self.tcx;
@ -2205,34 +2198,17 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
// the bad interactions of the given hack detailed in (note_1).
debug!("check_pat_ref: expected={:?}", expected);
match *expected.kind() {
ty::Ref(_, r_ty, r_mutbl) if r_mutbl == pat_mutbl => {
if r_mutbl == Mutability::Not
&& match_ergonomics_mode != MatchErgonomicsMode::Legacy
{
ty::Ref(_, r_ty, r_mutbl)
if (new_match_ergonomics && r_mutbl >= pat_mutbl)
|| r_mutbl == pat_mutbl =>
{
if no_ref_mut_behind_and && r_mutbl == Mutability::Not {
pat_info.max_ref_mutbl = MutblCap::Not;
}
(expected, r_ty)
}
// `&` pattern eats `&mut` reference
ty::Ref(_, r_ty, Mutability::Mut)
if pat_mutbl == Mutability::Not
&& match_ergonomics_mode != MatchErgonomicsMode::Legacy =>
{
(expected, r_ty)
}
_ if inherited_ref_mutbl_match
&& match_ergonomics_mode == MatchErgonomicsMode::EatTwoLayers =>
{
// We already matched against a match-ergonmics inserted reference,
// so we don't need to match against a reference from the original type.
// Save this info for use in lowering later
self.typeck_results.borrow_mut().skipped_ref_pats_mut().insert(pat.hir_id);
(expected, expected)
}
_ => {
let inner_ty = self.next_ty_var(inner.span);
let ref_ty = self.new_ref_ty(pat.span, pat_mutbl, inner_ty);

81
compiler/rustc_mir_build/src/check_unsafety.rs
View File

@ -88,6 +88,33 @@ impl<'tcx> UnsafetyVisitor<'_, 'tcx> {
}
}
fn emit_deprecated_safe_fn_call(&self, span: Span, kind: &UnsafeOpKind) -> bool {
match kind {
// Allow calls to deprecated-safe unsafe functions if the caller is
// from an edition before 2024.
&UnsafeOpKind::CallToUnsafeFunction(Some(id))
if !span.at_least_rust_2024()
&& self.tcx.has_attr(id, sym::rustc_deprecated_safe_2024) =>
{
self.tcx.emit_node_span_lint(
DEPRECATED_SAFE,
self.hir_context,
span,
CallToDeprecatedSafeFnRequiresUnsafe {
span,
function: with_no_trimmed_paths!(self.tcx.def_path_str(id)),
sub: CallToDeprecatedSafeFnRequiresUnsafeSub {
left: span.shrink_to_lo(),
right: span.shrink_to_hi(),
},
},
);
true
}
_ => false,
}
}
fn requires_unsafe(&mut self, span: Span, kind: UnsafeOpKind) {
let unsafe_op_in_unsafe_fn_allowed = self.unsafe_op_in_unsafe_fn_allowed();
match self.safety_context {
@ -101,43 +128,29 @@ impl<'tcx> UnsafetyVisitor<'_, 'tcx> {
}
SafetyContext::UnsafeFn if unsafe_op_in_unsafe_fn_allowed => {}
SafetyContext::UnsafeFn => {
// unsafe_op_in_unsafe_fn is disallowed
kind.emit_unsafe_op_in_unsafe_fn_lint(
self.tcx,
self.hir_context,
span,
self.suggest_unsafe_block,
);
self.suggest_unsafe_block = false;
}
SafetyContext::Safe => match kind {
// Allow calls to deprecated-safe unsafe functions if the
// caller is from an edition before 2024.
UnsafeOpKind::CallToUnsafeFunction(Some(id))
if !span.at_least_rust_2024()
&& self.tcx.has_attr(id, sym::rustc_deprecated_safe_2024) =>
{
self.tcx.emit_node_span_lint(
DEPRECATED_SAFE,
let deprecated_safe_fn = self.emit_deprecated_safe_fn_call(span, &kind);
if !deprecated_safe_fn {
// unsafe_op_in_unsafe_fn is disallowed
kind.emit_unsafe_op_in_unsafe_fn_lint(
self.tcx,
self.hir_context,
span,
CallToDeprecatedSafeFnRequiresUnsafe {
span,
function: with_no_trimmed_paths!(self.tcx.def_path_str(id)),
sub: CallToDeprecatedSafeFnRequiresUnsafeSub {
left: span.shrink_to_lo(),
right: span.shrink_to_hi(),
},
},
)
self.suggest_unsafe_block,
);
self.suggest_unsafe_block = false;
}
_ => kind.emit_requires_unsafe_err(
self.tcx,
span,
self.hir_context,
unsafe_op_in_unsafe_fn_allowed,
),
},
}
SafetyContext::Safe => {
let deprecated_safe_fn = self.emit_deprecated_safe_fn_call(span, &kind);
if !deprecated_safe_fn {
kind.emit_requires_unsafe_err(
self.tcx,
span,
self.hir_context,
unsafe_op_in_unsafe_fn_allowed,
);
}
}
}
}

40
src/bootstrap/src/core/build_steps/doc.rs
View File

@ -29,7 +29,7 @@ macro_rules! submodule_helper {
}
macro_rules! book {
($($name:ident, $path:expr, $book_name:expr $(, submodule $(= $submodule:literal)? )? ;)+) => {
($($name:ident, $path:expr, $book_name:expr, $lang:expr $(, submodule $(= $submodule:literal)? )? ;)+) => {
$(
#[derive(Debug, Clone, Hash, PartialEq, Eq)]
pub struct $name {
@ -61,6 +61,7 @@ macro_rules! book {
name: $book_name.to_owned(),
src: builder.src.join($path),
parent: Some(self),
languages: $lang.into(),
})
}
}
@ -74,15 +75,15 @@ macro_rules! book {
// FIXME: Make checking for a submodule automatic somehow (maybe by having a list of all submodules
// and checking against it?).
book!(
CargoBook, "src/tools/cargo/src/doc", "cargo", submodule = "src/tools/cargo";
ClippyBook, "src/tools/clippy/book", "clippy";
EditionGuide, "src/doc/edition-guide", "edition-guide", submodule;
EmbeddedBook, "src/doc/embedded-book", "embedded-book", submodule;
Nomicon, "src/doc/nomicon", "nomicon", submodule;
Reference, "src/doc/reference", "reference", submodule;
RustByExample, "src/doc/rust-by-example", "rust-by-example", submodule;
RustdocBook, "src/doc/rustdoc", "rustdoc";
StyleGuide, "src/doc/style-guide", "style-guide";
CargoBook, "src/tools/cargo/src/doc", "cargo", &[], submodule = "src/tools/cargo";
ClippyBook, "src/tools/clippy/book", "clippy", &[];
EditionGuide, "src/doc/edition-guide", "edition-guide", &[], submodule;
EmbeddedBook, "src/doc/embedded-book", "embedded-book", &[], submodule;
Nomicon, "src/doc/nomicon", "nomicon", &[], submodule;
Reference, "src/doc/reference", "reference", &[], submodule;
RustByExample, "src/doc/rust-by-example", "rust-by-example", &["ja"], submodule;
RustdocBook, "src/doc/rustdoc", "rustdoc", &[];
StyleGuide, "src/doc/style-guide", "style-guide", &[];
);
#[derive(Debug, Clone, Hash, PartialEq, Eq)]
@ -110,6 +111,7 @@ impl Step for UnstableBook {
name: "unstable-book".to_owned(),
src: builder.md_doc_out(self.target).join("unstable-book"),
parent: Some(self),
languages: vec![],
})
}
}
@ -120,6 +122,7 @@ struct RustbookSrc<P: Step> {
name: String,
src: PathBuf,
parent: Option<P>,
languages: Vec<&'static str>,
}
impl<P: Step> Step for RustbookSrc<P> {
@ -151,7 +154,19 @@ impl<P: Step> Step for RustbookSrc<P> {
builder.info(&format!("Rustbook ({target}) - {name}"));
let _ = fs::remove_dir_all(&out);
builder.run(rustbook_cmd.arg("build").arg(src).arg("-d").arg(out));
builder.run(rustbook_cmd.arg("build").arg(&src).arg("-d").arg(&out));
for lang in &self.languages {
let out = out.join(lang);
builder.info(&format!("Rustbook ({target}) - {name} - {lang}"));
let _ = fs::remove_dir_all(&out);
let mut rustbook_cmd = builder.tool_cmd(Tool::Rustbook);
builder.run(
rustbook_cmd.arg("build").arg(&src).arg("-d").arg(&out).arg("-l").arg(lang),
);
}
}
if self.parent.is_some() {
@ -214,6 +229,7 @@ impl Step for TheBook {
name: "book".to_owned(),
src: absolute_path.clone(),
parent: Some(self),
languages: vec![],
});
// building older edition redirects
@ -225,6 +241,7 @@ impl Step for TheBook {
// There should only be one book that is marked as the parent for each target, so
// treat the other editions as not having a parent.
parent: Option::<Self>::None,
languages: vec![],
});
}
@ -1208,6 +1225,7 @@ impl Step for RustcBook {
name: "rustc".to_owned(),
src: out_base,
parent: Some(self),
languages: vec![],
});
}
}

14
src/doc/rustc/src/check-cfg/cargo-specifics.md
View File

@ -3,12 +3,12 @@
<!--
This page is currently (as of May 2024) the canonical place for describing the interaction
between Cargo and --check-cfg. It is placed in the rustc book rather than the Cargo book
since check-cfg is primarely a Rust/rustc feature and is therefor consider by T-cargo to
since check-cfg is primarily a Rust/rustc feature and is therefore considered by T-cargo to
be an implementation detail, at least --check-cfg and the unexpected_cfgs are owned by
rustc, not Cargo.
-->
This document is intented to summarize the principal ways Cargo interacts with
This document is intended to summarize the principal ways Cargo interacts with
the `unexpected_cfgs` lint and `--check-cfg` flag. It is not intended to provide
individual details, for that refer to the [`--check-cfg` documentation](../check-cfg.md) and
to the [Cargo book](../../cargo/index.html).
@ -17,7 +17,7 @@ to the [Cargo book](../../cargo/index.html).
*See the [`[features]` section in the Cargo book][cargo-features] for more details.*
With the `[features]` table Cargo provides a mechanism to express conditional compilation and
With the `[features]` table, Cargo provides a mechanism to express conditional compilation and
optional dependencies. Cargo *automatically* declares corresponding cfgs for every feature as
expected.
@ -32,16 +32,16 @@ my_feature = []
## `check-cfg` in `[lints.rust]` table
<!-- Note that T-Cargo considers `[lints.rust.unexpected_cfgs.check-cfg]` to be an
implementation detail and is therefor not documented in Cargo, we therefor do that ourself -->
<!-- Note that T-Cargo considers `lints.rust.unexpected_cfgs.check-cfg` to be an
implementation detail and is therefore documented here and not in Cargo. -->
*See the [`[lints]` section in the Cargo book][cargo-lints-table] for more details.*
When using a staticlly known custom config (ie. not dependant on a build-script), Cargo provides
When using a statically known custom config (i.e., not dependent on a build-script), Cargo provides
the custom lint config `check-cfg` under `[lints.rust.unexpected_cfgs]`.
It can be used to set custom static [`--check-cfg`](../check-cfg.md) args, it is mainly useful when
the list of expected cfgs is known is advance.
the list of expected cfgs is known in advance.
`Cargo.toml`:
```toml

1
src/tools/rustbook/Cargo.toml
View File

@ -9,6 +9,7 @@ clap = "4.0.32"
env_logger = "0.11"
mdbook-trpl-listing = { path = "../../doc/book/packages/mdbook-trpl-listing" }
mdbook-trpl-note = { path = "../../doc/book/packages/mdbook-trpl-note" }
mdbook-i18n-helpers = "0.3.3"
[dependencies.mdbook]
version = "0.4.37"

13
src/tools/rustbook/src/main.rs
View File

@ -7,6 +7,7 @@ use clap::{arg, ArgMatches, Command};
use mdbook::errors::Result as Result3;
use mdbook::MDBook;
use mdbook_i18n_helpers::preprocessors::Gettext;
use mdbook_trpl_listing::TrplListing;
use mdbook_trpl_note::TrplNote;
@ -19,6 +20,11 @@ fn main() {
.required(false)
.value_parser(clap::value_parser!(PathBuf));
let l_arg = arg!(-l --"lang" <LANGUAGE>
"The output language")
.required(false)
.value_parser(clap::value_parser!(String));
let dir_arg = arg!([dir] "Root directory for the book\n\
(Defaults to the current directory when omitted)")
.value_parser(clap::value_parser!(PathBuf));
@ -33,6 +39,7 @@ fn main() {
Command::new("build")
.about("Build the book from the markdown files")
.arg(d_arg)
.arg(l_arg)
.arg(&dir_arg),
)
.subcommand(
@ -63,6 +70,12 @@ pub fn build(args: &ArgMatches) -> Result3<()> {
let book_dir = get_book_dir(args);
let mut book = load_book(&book_dir)?;
if let Some(lang) = args.get_one::<String>("lang") {
let gettext = Gettext;
book.with_preprocessor(gettext);
book.config.set("book.language", lang).unwrap();
}
// Set this to allow us to catch bugs in advance.
book.config.build.create_missing = false;

12
tests/crashes/124552.rs
View File

@ -1,12 +0,0 @@
//@ known-bug: rust-lang/rust#124552
struct B;
struct Foo {
b: u32,
b: B,
}
static BAR: Foo = Foo { b: B };
fn main() {}

13
tests/ui/derives/derive-hrtb-for-bare-fn-field-with-lifetime.rs Normal file
View File

@ -0,0 +1,13 @@
//@ run-pass
// Issue #122622: `#[derive(Clone)]` should work for HRTB function type taking an associated type
#![allow(dead_code)]
trait SomeTrait {
type SomeType<'a>;
}
#[derive(Clone)]
struct Foo<T: SomeTrait> {
x: for<'a> fn(T::SomeType<'a>)
}
fn main() {}

14
tests/ui/feature-gates/feature-gate-ref_pat_everywhere.rs
View File

@ -1,14 +0,0 @@
pub fn main() {
if let Some(Some(&x)) = &Some(&Some(0)) {
//~^ ERROR: mismatched types [E0308]
let _: u32 = x;
}
if let Some(&Some(x)) = &Some(Some(0)) {
//~^ ERROR: mismatched types [E0308]
let _: u32 = x;
}
if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) {
//~^ ERROR: mismatched types [E0308]
let _: u32 = x;
}
}

49
tests/ui/feature-gates/feature-gate-ref_pat_everywhere.stderr
View File

@ -1,49 +0,0 @@
error[E0308]: mismatched types
--> $DIR/feature-gate-ref_pat_everywhere.rs:2:22
|
LL | if let Some(Some(&x)) = &Some(&Some(0)) {
| ^^ --------------- this expression has type `&Option<&Option<{integer}>>`
| |
| expected integer, found `&_`
|
= note: expected type `{integer}`
found reference `&_`
help: consider removing `&` from the pattern
|
LL | if let Some(Some(x)) = &Some(&Some(0)) {
| ~
error[E0308]: mismatched types
--> $DIR/feature-gate-ref_pat_everywhere.rs:6:17
|
LL | if let Some(&Some(x)) = &Some(Some(0)) {
| ^^^^^^^^ -------------- this expression has type `&Option<Option<{integer}>>`
| |
| expected `Option<{integer}>`, found `&_`
|
= note: expected enum `Option<{integer}>`
found reference `&_`
error[E0308]: mismatched types
--> $DIR/feature-gate-ref_pat_everywhere.rs:10:22
|
LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) {
| ^^^^^^ ----------------------- this expression has type `&mut Option<&mut Option<{integer}>>`
| |
| expected integer, found `&mut _`
|
= note: expected type `{integer}`
found mutable reference `&mut _`
note: to declare a mutable binding use: `mut x`
--> $DIR/feature-gate-ref_pat_everywhere.rs:10:22
|
LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) {
| ^^^^^^
help: consider removing `&mut` from the pattern
|
LL | if let Some(Some(x)) = &mut Some(&mut Some(0)) {
| ~
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0308`.

15
tests/ui/match/ref_pat_eat_one_layer_2024/ref_pat_eat_one_layer_2024.rs
View File

@ -23,9 +23,6 @@ pub fn main() {
if let Some(Some(&x)) = &Some(&Some(0)) {
let _: u32 = x;
}
if let Some(&mut Some(&x)) = &Some(&mut Some(0)) {
let _: u32 = x;
}
if let Some(&Some(&x)) = &mut Some(&Some(0)) {
let _: u32 = x;
}
@ -35,9 +32,6 @@ pub fn main() {
if let Some(&Some(&mut ref x)) = Some(&Some(&mut 0)) {
let _: &u32 = x;
}
if let Some(Some(&mut x)) = &Some(Some(&mut 0)) {
let _: &u32 = x;
}
if let &Some(Some(x)) = &Some(&mut Some(0)) {
let _: &u32 = x;
}
@ -59,13 +53,4 @@ pub fn main() {
if let Some(&Some(x)) = &mut Some(Some(0)) {
let _: u32 = x;
}
let &mut x = &&mut 0;
let _: &u32 = x;
let &mut x = &&&&&&&&&&&&&&&&&&&&&&&&&&&&mut 0;
let _: &u32 = x;
let &mut &mut &mut &mut x = &mut &&&&mut &&&mut &mut 0;
let _: &u32 = x;
}

39
tests/ui/match/ref_pat_eat_one_layer_2024/ref_pat_eat_one_layer_2024_fail.rs
View File

@ -5,26 +5,26 @@
pub fn main() {
if let Some(&mut Some(&_)) = &Some(&Some(0)) {
//~^ ERROR: mismatched types
//~^ ERROR: cannot match inherited `&` with `&mut` pattern
}
if let Some(&Some(&mut _)) = &Some(&mut Some(0)) {
//~^ ERROR: mismatched types
//~^ ERROR: cannot match inherited `&` with `&mut` pattern
}
if let Some(&Some(x)) = &mut Some(&Some(0)) {
let _: &mut u32 = x;
//~^ ERROR: mismatched types
}
if let Some(&Some(&mut _)) = &mut Some(&Some(0)) {
//~^ ERROR: mismatched types
//~^ ERROR: cannot match inherited `&` with `&mut` pattern
}
if let Some(&Some(Some((&mut _)))) = &Some(Some(&mut Some(0))) {
//~^ ERROR: mismatched types
//~^ ERROR: cannot match inherited `&` with `&mut` pattern
}
if let Some(&mut Some(x)) = &Some(Some(0)) {
//~^ ERROR: mismatched types
//~^ ERROR: cannot match inherited `&` with `&mut` pattern
}
if let Some(&mut Some(x)) = &Some(Some(0)) {
//~^ ERROR: mismatched types
//~^ ERROR: cannot match inherited `&` with `&mut` pattern
}
let &mut _ = &&0;
@ -32,4 +32,31 @@ pub fn main() {
let &mut _ = &&&&&&&&&&&&&&&&&&&&&&&&&&&&0;
//~^ ERROR: mismatched types
if let Some(&mut Some(&_)) = &Some(&mut Some(0)) {
//~^ ERROR: cannot match inherited `&` with `&mut` pattern
}
if let Some(Some(&mut x)) = &Some(Some(&mut 0)) {
//~^ ERROR: cannot match inherited `&` with `&mut` pattern
}
let &mut _ = &&mut 0;
//~^ ERROR: mismatched types
let &mut _ = &&&&&&&&&&&&&&&&&&&&&&&&&&&&mut 0;
//~^ ERROR: mismatched types
let &mut &mut &mut &mut _ = &mut &&&&mut &&&mut &mut 0;
//~^ ERROR: mismatched types
struct Foo(u8);
let Foo(mut a) = &Foo(0);
//~^ ERROR: binding cannot be both mutable and by-reference
a = &42;
let Foo(mut a) = &mut Foo(0);
//~^ ERROR: binding cannot be both mutable and by-reference
a = &mut 42;
}

160
tests/ui/match/ref_pat_eat_one_layer_2024/ref_pat_eat_one_layer_2024_fail.stderr
View File

@ -1,24 +1,24 @@
error[E0308]: mismatched types
error: cannot match inherited `&` with `&mut` pattern
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:7:17
|
LL | if let Some(&mut Some(&_)) = &Some(&Some(0)) {
| ^^^^^^^^^^^^^ --------------- this expression has type `&Option<&Option<{integer}>>`
| |
| expected `Option<{integer}>`, found `&mut _`
| ^^^^^
|
= note: expected enum `Option<{integer}>`
found mutable reference `&mut _`
help: replace this `&mut` pattern with `&`
|
LL | if let Some(&Some(&_)) = &Some(&Some(0)) {
| ~
error[E0308]: mismatched types
error: cannot match inherited `&` with `&mut` pattern
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:10:23
|
LL | if let Some(&Some(&mut _)) = &Some(&mut Some(0)) {
| ^^^^^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>`
| |
| expected integer, found `&mut _`
| ^^^^^
|
= note: expected type `{integer}`
found mutable reference `&mut _`
help: replace this `&mut` pattern with `&`
|
LL | if let Some(&Some(&_)) = &Some(&mut Some(0)) {
| ~
error[E0308]: mismatched types
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:14:27
@ -31,49 +31,49 @@ LL | let _: &mut u32 = x;
= note: expected mutable reference `&mut u32`
found reference `&{integer}`
error[E0308]: mismatched types
error: cannot match inherited `&` with `&mut` pattern
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:17:23
|
LL | if let Some(&Some(&mut _)) = &mut Some(&Some(0)) {
| ^^^^^^ ------------------- this expression has type `&mut Option<&Option<{integer}>>`
| |
| expected integer, found `&mut _`
| ^^^^^
|
= note: expected type `{integer}`
found mutable reference `&mut _`
help: replace this `&mut` pattern with `&`
|
LL | if let Some(&Some(&_)) = &mut Some(&Some(0)) {
| ~
error[E0308]: mismatched types
error: cannot match inherited `&` with `&mut` pattern
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:20:29
|
LL | if let Some(&Some(Some((&mut _)))) = &Some(Some(&mut Some(0))) {
| ^^^^^^ ------------------------- this expression has type `&Option<Option<&mut Option<{integer}>>>`
| |
| expected integer, found `&mut _`
| ^^^^^
|
= note: expected type `{integer}`
found mutable reference `&mut _`
help: replace this `&mut` pattern with `&`
|
LL | if let Some(&Some(Some((&_)))) = &Some(Some(&mut Some(0))) {
| ~
error[E0308]: mismatched types
error: cannot match inherited `&` with `&mut` pattern
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:23:17
|
LL | if let Some(&mut Some(x)) = &Some(Some(0)) {
| ^^^^^^^^^^^^ -------------- this expression has type `&Option<Option<{integer}>>`
| |
| expected `Option<{integer}>`, found `&mut _`
| ^^^^^
|
= note: expected enum `Option<{integer}>`
found mutable reference `&mut _`
help: replace this `&mut` pattern with `&`
|
LL | if let Some(&Some(x)) = &Some(Some(0)) {
| ~
error[E0308]: mismatched types
error: cannot match inherited `&` with `&mut` pattern
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:26:17
|
LL | if let Some(&mut Some(x)) = &Some(Some(0)) {
| ^^^^^^^^^^^^ -------------- this expression has type `&Option<Option<{integer}>>`
| |
| expected `Option<{integer}>`, found `&mut _`
| ^^^^^
|
= note: expected enum `Option<{integer}>`
found mutable reference `&mut _`
help: replace this `&mut` pattern with `&`
|
LL | if let Some(&Some(x)) = &Some(Some(0)) {
| ~
error[E0308]: mismatched types
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:30:9
@ -81,9 +81,9 @@ error[E0308]: mismatched types
LL | let &mut _ = &&0;
| ^^^^^^ --- this expression has type `&&{integer}`
| |
| expected integer, found `&mut _`
| types differ in mutability
|
= note: expected type `{integer}`
= note: expected reference `&&{integer}`
found mutable reference `&mut _`
error[E0308]: mismatched types
@ -92,11 +92,87 @@ error[E0308]: mismatched types
LL | let &mut _ = &&&&&&&&&&&&&&&&&&&&&&&&&&&&0;
| ^^^^^^ ----------------------------- this expression has type `&&&&&&&&&&&&&&&&&&&&&&&&&&&&{integer}`
| |
| expected integer, found `&mut _`
| types differ in mutability
|
= note: expected type `{integer}`
= note: expected reference `&&&&&&&&&&&&&&&&&&&&&&&&&&&&{integer}`
found mutable reference `&mut _`
error: aborting due to 9 previous errors
error: cannot match inherited `&` with `&mut` pattern
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:36:17
|
LL | if let Some(&mut Some(&_)) = &Some(&mut Some(0)) {
| ^^^^^
|
help: replace this `&mut` pattern with `&`
|
LL | if let Some(&Some(&_)) = &Some(&mut Some(0)) {
| ~
For more information about this error, try `rustc --explain E0308`.
error: cannot match inherited `&` with `&mut` pattern
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:40:22
|
LL | if let Some(Some(&mut x)) = &Some(Some(&mut 0)) {
| ^^^^^
|
help: replace this `&mut` pattern with `&`
|
LL | if let Some(Some(&x)) = &Some(Some(&mut 0)) {
| ~
error[E0308]: mismatched types
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:44:9
|
LL | let &mut _ = &&mut 0;
| ^^^^^^ ------- this expression has type `&&mut {integer}`
| |
| types differ in mutability
|
= note: expected reference `&&mut {integer}`
found mutable reference `&mut _`
error[E0308]: mismatched types
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:47:9
|
LL | let &mut _ = &&&&&&&&&&&&&&&&&&&&&&&&&&&&mut 0;
| ^^^^^^ --------------------------------- this expression has type `&&&&&&&&&&&&&&&&&&&&&&&&&&&&mut {integer}`
| |
| types differ in mutability
|
= note: expected reference `&&&&&&&&&&&&&&&&&&&&&&&&&&&&mut {integer}`
found mutable reference `&mut _`
error[E0308]: mismatched types
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:50:14
|
LL | let &mut &mut &mut &mut _ = &mut &&&&mut &&&mut &mut 0;
| ^^^^^^^^^^^^^^^^ -------------------------- this expression has type `&mut &&&&mut &&&mut &mut {integer}`
| |
| types differ in mutability
|
= note: expected reference `&&&&mut &&&mut &mut {integer}`
found mutable reference `&mut _`
error[E0658]: binding cannot be both mutable and by-reference
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:55:13
|
LL | let Foo(mut a) = &Foo(0);
| ^^^^
|
= note: see issue #123076 <https://github.com/rust-lang/rust/issues/123076> for more information
= help: add `#![feature(mut_ref)]` 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[E0658]: binding cannot be both mutable and by-reference
--> $DIR/ref_pat_eat_one_layer_2024_fail.rs:59:13
|
LL | let Foo(mut a) = &mut Foo(0);
| ^^^^
|
= note: see issue #123076 <https://github.com/rust-lang/rust/issues/123076> for more information
= help: add `#![feature(mut_ref)]` 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 16 previous errors
Some errors have detailed explanations: E0308, E0658.
For more information about an error, try `rustc --explain E0308`.

12
tests/ui/match/ref_pat_everywhere-fail.rs
View File

@ -1,12 +0,0 @@
#![allow(incomplete_features)]
#![feature(ref_pat_everywhere)]
pub fn main() {
if let Some(&x) = Some(0) {
//~^ ERROR: mismatched types [E0308]
let _: u32 = x;
}
if let Some(&mut x) = Some(&0) {
//~^ ERROR: mismatched types [E0308]
let _: u32 = x;
}
}

38
tests/ui/match/ref_pat_everywhere-fail.stderr
View File

@ -1,38 +0,0 @@
error[E0308]: mismatched types
--> $DIR/ref_pat_everywhere-fail.rs:4:17
|
LL | if let Some(&x) = Some(0) {
| ^^ ------- this expression has type `Option<{integer}>`
| |
| expected integer, found `&_`
|
= note: expected type `{integer}`
found reference `&_`
help: consider removing `&` from the pattern
|
LL | if let Some(x) = Some(0) {
| ~
error[E0308]: mismatched types
--> $DIR/ref_pat_everywhere-fail.rs:8:17
|
LL | if let Some(&mut x) = Some(&0) {
| ^^^^^^ -------- this expression has type `Option<&{integer}>`
| |
| types differ in mutability
|
= note: expected reference `&{integer}`
found mutable reference `&mut _`
note: to declare a mutable binding use: `mut x`
--> $DIR/ref_pat_everywhere-fail.rs:8:17
|
LL | if let Some(&mut x) = Some(&0) {
| ^^^^^^
help: consider removing `&mut` from the pattern
|
LL | if let Some(x) = Some(&0) {
| ~
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0308`.

24
tests/ui/match/ref_pat_everywhere.rs
View File

@ -1,24 +0,0 @@
//@ run-pass
#![allow(incomplete_features)]
#![feature(ref_pat_everywhere)]
pub fn main() {
if let Some(Some(&x)) = &Some(&Some(0)) {
let _: u32 = x;
}
if let Some(&Some(x)) = &Some(Some(0)) {
let _: u32 = x;
}
if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) {
let _: u32 = x;
}
if let Some(Some(&x)) = &Some(&mut Some(0)) {
let _: u32 = x;
}
if let &Some(x) = &mut Some(0) {
let _: u32 = x;
}
if let Some(&x) = &mut Some(0) {
let _: u32 = x;
}
}

14
tests/ui/pattern/feature-gate-mut_preserve_binding_mode_2024.rs
View File

@ -1,14 +0,0 @@
//@ edition: 2024
//@ compile-flags: -Zunstable-options
struct Foo(u8);
fn main() {
let Foo(mut a) = &Foo(0);
a = &42;
//~^ ERROR: mismatched types
let Foo(mut a) = &mut Foo(0);
a = &mut 42;
//~^ ERROR: mismatched types
}

31
tests/ui/pattern/feature-gate-mut_preserve_binding_mode_2024.stderr
View File

@ -1,31 +0,0 @@
error[E0308]: mismatched types
--> $DIR/feature-gate-mut_preserve_binding_mode_2024.rs:8:9
|
LL | let Foo(mut a) = &Foo(0);
| ----- expected due to the type of this binding
LL | a = &42;
| ^^^ expected `u8`, found `&{integer}`
|
help: consider removing the borrow
|
LL - a = &42;
LL + a = 42;
|
error[E0308]: mismatched types
--> $DIR/feature-gate-mut_preserve_binding_mode_2024.rs:12:9
|
LL | let Foo(mut a) = &mut Foo(0);
| ----- expected due to the type of this binding
LL | a = &mut 42;
| ^^^^^^^ expected `u8`, found `&mut {integer}`
|
help: consider removing the borrow
|
LL - a = &mut 42;
LL + a = 42;
|
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0308`.

2
tests/ui/pattern/match_ergonomics_2024.fixed
View File

@ -2,7 +2,7 @@
//@ run-rustfix
//@ rustfix-only-machine-applicable
//@ aux-build:match_ergonomics_2024_macros.rs
#![feature(mut_preserve_binding_mode_2024, ref_pat_eat_one_layer_2024)]
#![feature(mut_ref, ref_pat_eat_one_layer_2024)]
#![allow(incomplete_features, unused)]
#![deny(rust_2024_incompatible_pat)]

2
tests/ui/pattern/match_ergonomics_2024.rs
View File

@ -2,7 +2,7 @@
//@ run-rustfix
//@ rustfix-only-machine-applicable
//@ aux-build:match_ergonomics_2024_macros.rs
#![feature(mut_preserve_binding_mode_2024, ref_pat_eat_one_layer_2024)]
#![feature(mut_ref, ref_pat_eat_one_layer_2024)]
#![allow(incomplete_features, unused)]
#![deny(rust_2024_incompatible_pat)]

2
tests/ui/pattern/mut_preserve_binding_mode_2021.rs
View File

@ -1,6 +1,6 @@
//@ edition: 2021
//@ compile-flags: -Zunstable-options
#![feature(mut_preserve_binding_mode_2024)]
#![feature(ref_pat_eat_one_layer_2024)]
#![allow(incomplete_features)]
struct Foo(u8);

2
tests/ui/pattern/mut_preserve_binding_mode_2024.rs
View File

@ -1,7 +1,7 @@
//@ run-pass
//@ edition: 2024
//@ compile-flags: -Zunstable-options
#![feature(mut_preserve_binding_mode_2024)]
#![feature(mut_ref, ref_pat_eat_one_layer_2024)]
#![allow(incomplete_features, unused)]
struct Foo(u8);

9
tests/ui/pattern/no_ref_mut_behind_and.rs Normal file
View File

@ -0,0 +1,9 @@
//@ edition: 2021
//@ run-pass
#![allow(incomplete_features)]
#![feature(ref_pat_eat_one_layer_2024)]
fn main() {
let &[[x]] = &[&mut [42]];
let _: &i32 = x;
}

27
tests/ui/rust-2024/unsafe-env.e2021.stderr
View File

@ -1,5 +1,24 @@
error[E0133]: call to unsafe function `unsafe_fn` is unsafe and requires unsafe block
--> $DIR/unsafe-env.rs:15:9
|
LL | unsafe_fn();
| ^^^^^^^^^^^ call to unsafe function
|
= note: for more information, see issue #71668 <https://github.com/rust-lang/rust/issues/71668>
= note: consult the function's documentation for information on how to avoid undefined behavior
note: an unsafe function restricts its caller, but its body is safe by default
--> $DIR/unsafe-env.rs:9:1
|
LL | unsafe fn unsafe_fn() {
| ^^^^^^^^^^^^^^^^^^^^^
note: the lint level is defined here
--> $DIR/unsafe-env.rs:8:8
|
LL | #[deny(unsafe_op_in_unsafe_fn)]
| ^^^^^^^^^^^^^^^^^^^^^^
error[E0133]: call to unsafe function `unsafe_fn` is unsafe and requires unsafe function or block
--> $DIR/unsafe-env.rs:23:5
--> $DIR/unsafe-env.rs:33:5
|
LL | unsafe_fn();
| ^^^^^^^^^^^ call to unsafe function
@ -7,17 +26,17 @@ LL | unsafe_fn();
= note: consult the function's documentation for information on how to avoid undefined behavior
error: unnecessary `unsafe` block
--> $DIR/unsafe-env.rs:26:5
--> $DIR/unsafe-env.rs:36:5
|
LL | unsafe {
| ^^^^^^ unnecessary `unsafe` block
|
note: the lint level is defined here
--> $DIR/unsafe-env.rs:11:8
--> $DIR/unsafe-env.rs:21:8
|
LL | #[deny(unused_unsafe)]
| ^^^^^^^^^^^^^
error: aborting due to 2 previous errors
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0133`.

49
tests/ui/rust-2024/unsafe-env.e2024.stderr
View File

@ -1,5 +1,42 @@
error[E0133]: call to unsafe function `std::env::set_var` is unsafe and requires unsafe block
--> $DIR/unsafe-env.rs:10:5
|
LL | env::set_var("FOO", "BAR");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
|
= note: for more information, see issue #71668 <https://github.com/rust-lang/rust/issues/71668>
= note: consult the function's documentation for information on how to avoid undefined behavior
note: an unsafe function restricts its caller, but its body is safe by default
--> $DIR/unsafe-env.rs:9:1
|
LL | unsafe fn unsafe_fn() {
| ^^^^^^^^^^^^^^^^^^^^^
note: the lint level is defined here
--> $DIR/unsafe-env.rs:8:8
|
LL | #[deny(unsafe_op_in_unsafe_fn)]
| ^^^^^^^^^^^^^^^^^^^^^^
error[E0133]: call to unsafe function `std::env::remove_var` is unsafe and requires unsafe block
--> $DIR/unsafe-env.rs:12:5
|
LL | env::remove_var("FOO");
| ^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
|
= note: for more information, see issue #71668 <https://github.com/rust-lang/rust/issues/71668>
= note: consult the function's documentation for information on how to avoid undefined behavior
error[E0133]: call to unsafe function `unsafe_fn` is unsafe and requires unsafe block
--> $DIR/unsafe-env.rs:15:9
|
LL | unsafe_fn();
| ^^^^^^^^^^^ call to unsafe function
|
= note: for more information, see issue #71668 <https://github.com/rust-lang/rust/issues/71668>
= note: consult the function's documentation for information on how to avoid undefined behavior
error[E0133]: call to unsafe function `set_var` is unsafe and requires unsafe block
--> $DIR/unsafe-env.rs:13:5
--> $DIR/unsafe-env.rs:23:5
|
LL | env::set_var("FOO", "BAR");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
@ -7,7 +44,7 @@ LL | env::set_var("FOO", "BAR");
= note: consult the function's documentation for information on how to avoid undefined behavior
error[E0133]: call to unsafe function `remove_var` is unsafe and requires unsafe block
--> $DIR/unsafe-env.rs:15:5
--> $DIR/unsafe-env.rs:25:5
|
LL | env::remove_var("FOO");
| ^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
@ -15,7 +52,7 @@ LL | env::remove_var("FOO");
= note: consult the function's documentation for information on how to avoid undefined behavior
error[E0133]: call to unsafe function `unsafe_fn` is unsafe and requires unsafe block
--> $DIR/unsafe-env.rs:23:5
--> $DIR/unsafe-env.rs:33:5
|
LL | unsafe_fn();
| ^^^^^^^^^^^ call to unsafe function
@ -23,17 +60,17 @@ LL | unsafe_fn();
= note: consult the function's documentation for information on how to avoid undefined behavior
error: unnecessary `unsafe` block
--> $DIR/unsafe-env.rs:26:5
--> $DIR/unsafe-env.rs:36:5
|
LL | unsafe {
| ^^^^^^ unnecessary `unsafe` block
|
note: the lint level is defined here
--> $DIR/unsafe-env.rs:11:8
--> $DIR/unsafe-env.rs:21:8
|
LL | #[deny(unused_unsafe)]
| ^^^^^^^^^^^^^
error: aborting due to 4 previous errors
error: aborting due to 7 previous errors
For more information about this error, try `rustc --explain E0133`.

12
tests/ui/rust-2024/unsafe-env.rs
View File

@ -5,7 +5,17 @@
use std::env;
unsafe fn unsafe_fn() {}
#[deny(unsafe_op_in_unsafe_fn)]
unsafe fn unsafe_fn() {
env::set_var("FOO", "BAR");
//[e2024]~^ ERROR call to unsafe function `std::env::set_var` is unsafe
env::remove_var("FOO");
//[e2024]~^ ERROR call to unsafe function `std::env::remove_var` is unsafe
if false {
unsafe_fn();
//~^ ERROR call to unsafe function `unsafe_fn` is unsafe
}
}
fn safe_fn() {}
#[deny(unused_unsafe)]

6
tests/crashes/124464.rs → tests/ui/static/duplicated-fields-issue-124464.rs
View File

@ -1,12 +1,16 @@
//@ known-bug: rust-lang/rust #124464
// Don't const eval fields with ambiguous layout.
// See issues #125842 and #124464.
enum TestOption<T> {
TestSome(T),
TestSome(T),
//~^ ERROR the name `TestSome` is defined multiple times
}
pub struct Request {
bar: TestOption<u64>,
bar: u8,
//~^ ERROR field `bar` is already declared
}
fn default_instance() -> &'static Request {

22
tests/ui/static/duplicated-fields-issue-124464.stderr Normal file
View File

@ -0,0 +1,22 @@
error[E0428]: the name `TestSome` is defined multiple times
--> $DIR/duplicated-fields-issue-124464.rs:6:5
|
LL | TestSome(T),
| ----------- previous definition of the type `TestSome` here
LL | TestSome(T),
| ^^^^^^^^^^^ `TestSome` redefined here
|
= note: `TestSome` must be defined only once in the type namespace of this enum
error[E0124]: field `bar` is already declared
--> $DIR/duplicated-fields-issue-124464.rs:12:5
|
LL | bar: TestOption<u64>,
| -------------------- `bar` first declared here
LL | bar: u8,
| ^^^^^^^ field already declared
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0124, E0428.
For more information about an error, try `rustc --explain E0124`.

21
tests/ui/static/duplicated-fields-issue-125842.rs Normal file
View File

@ -0,0 +1,21 @@
// Do not try to evaluate static initalizers that reference
// ill-defined types. This used to be an ICE.
// See issues #125842 and #124464.
struct Struct {
field: Option<u8>,
field: u8,
//~^ ERROR field `field` is already declared
}
static STATIC_A: Struct = Struct {
field: 1
};
static STATIC_B: Struct = {
let field = 1;
Struct {
field,
}
};
fn main() {}

11
tests/ui/static/duplicated-fields-issue-125842.stderr Normal file
View File

@ -0,0 +1,11 @@
error[E0124]: field `field` is already declared
--> $DIR/duplicated-fields-issue-125842.rs:6:5
|
LL | field: Option<u8>,
| ----------------- `field` first declared here
LL | field: u8,
| ^^^^^^^^^ field already declared
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0124`.