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Auto merge of #133086 - GuillaumeGomez:rollup-kbkfrkj, r=GuillaumeGomez

Browse Source 
Rollup of 5 pull requests

Successful merges:

 - #132936 (For expr `return (_ = 42);` unused_paren lint should not be triggered)
 - #132956 (Add visit_coroutine_kind to ast::Visitor)
 - #132978 (Mention both release *and* edition breakage for never type lints)
 - #133074 (make UI test OS-agnostic)
 - #133080 (Fix span edition for 2024 RPIT coming from an external macro )

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2024-11-15 23:08:55 +00:00
commit d3a4b1f46b
46 changed files with 411 additions and 188 deletions
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16
compiler/rustc_ast/src/visit.rs
View File

@ -268,8 +268,8 @@ pub trait Visitor<'ast>: Sized {
fn visit_fn_ret_ty(&mut self, ret_ty: &'ast FnRetTy) -> Self::Result {
walk_fn_ret_ty(self, ret_ty)
}
fn visit_fn_header(&mut self, _header: &'ast FnHeader) -> Self::Result {
Self::Result::output()
fn visit_fn_header(&mut self, header: &'ast FnHeader) -> Self::Result {
walk_fn_header(self, header)
}
fn visit_expr_field(&mut self, f: &'ast ExprField) -> Self::Result {
walk_expr_field(self, f)
@ -292,6 +292,9 @@ pub trait Visitor<'ast>: Sized {
fn visit_capture_by(&mut self, _capture_by: &'ast CaptureBy) -> Self::Result {
Self::Result::output()
}
fn visit_coroutine_kind(&mut self, _coroutine_kind: &'ast CoroutineKind) -> Self::Result {
Self::Result::output()
}
}
pub fn walk_crate<'a, V: Visitor<'a>>(visitor: &mut V, krate: &'a Crate) -> V::Result {
@ -813,6 +816,12 @@ pub fn walk_fn_ret_ty<'a, V: Visitor<'a>>(visitor: &mut V, ret_ty: &'a FnRetTy)
V::Result::output()
}
pub fn walk_fn_header<'a, V: Visitor<'a>>(visitor: &mut V, fn_header: &'a FnHeader) -> V::Result {
let FnHeader { safety: _, coroutine_kind, constness: _, ext: _ } = fn_header;
visit_opt!(visitor, visit_coroutine_kind, coroutine_kind.as_ref());
V::Result::output()
}
pub fn walk_fn_decl<'a, V: Visitor<'a>>(
visitor: &mut V,
FnDecl { inputs, output }: &'a FnDecl,
@ -830,8 +839,9 @@ pub fn walk_fn<'a, V: Visitor<'a>>(visitor: &mut V, kind: FnKind<'a>) -> V::Resu
try_visit!(walk_fn_decl(visitor, decl));
visit_opt!(visitor, visit_block, body);
}
FnKind::Closure(binder, _coroutine_kind, decl, body) => {
FnKind::Closure(binder, coroutine_kind, decl, body) => {
try_visit!(visitor.visit_closure_binder(binder));
visit_opt!(visitor, visit_coroutine_kind, coroutine_kind.as_ref());
try_visit!(walk_fn_decl(visitor, decl));
try_visit!(visitor.visit_expr(body));
}

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

@ -738,7 +738,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
allow_internal_unstable: Option<Lrc<[Symbol]>>,
) -> Span {
self.tcx.with_stable_hashing_context(|hcx| {
span.mark_with_reason(allow_internal_unstable, reason, self.tcx.sess.edition(), hcx)
span.mark_with_reason(allow_internal_unstable, reason, span.edition(), hcx)
})
}

23
compiler/rustc_lint/src/early.rs
View File

@ -68,6 +68,10 @@ impl<'a, T: EarlyLintPass> EarlyContextAndPass<'a, T> {
}
impl<'a, T: EarlyLintPass> ast_visit::Visitor<'a> for EarlyContextAndPass<'a, T> {
fn visit_coroutine_kind(&mut self, coroutine_kind: &'a ast::CoroutineKind) -> Self::Result {
self.check_id(coroutine_kind.closure_id());
}
fn visit_param(&mut self, param: &'a ast::Param) {
self.with_lint_attrs(param.id, &param.attrs, |cx| {
lint_callback!(cx, check_param, param);
@ -111,17 +115,6 @@ impl<'a, T: EarlyLintPass> ast_visit::Visitor<'a> for EarlyContextAndPass<'a, T>
self.with_lint_attrs(e.id, &e.attrs, |cx| {
lint_callback!(cx, check_expr, e);
ast_visit::walk_expr(cx, e);
// Explicitly check for lints associated with 'closure_id', since
// it does not have a corresponding AST node
match e.kind {
ast::ExprKind::Closure(box ast::Closure {
coroutine_kind: Some(coroutine_kind),
..
}) => {
cx.check_id(coroutine_kind.closure_id());
}
_ => {}
}
lint_callback!(cx, check_expr_post, e);
})
}
@ -156,14 +149,6 @@ impl<'a, T: EarlyLintPass> ast_visit::Visitor<'a> for EarlyContextAndPass<'a, T>
lint_callback!(self, check_fn, fk, span, id);
self.check_id(id);
ast_visit::walk_fn(self, fk);
// Explicitly check for lints associated with 'closure_id', since
// it does not have a corresponding AST node
if let ast_visit::FnKind::Fn(_, _, sig, _, _, _) = fk {
if let Some(coroutine_kind) = sig.header.coroutine_kind {
self.check_id(coroutine_kind.closure_id());
}
}
}
fn visit_variant_data(&mut self, s: &'a ast::VariantData) {

9
compiler/rustc_lint/src/unused.rs
View File

@ -584,6 +584,7 @@ enum UnusedDelimsCtx {
MatchScrutineeExpr,
ReturnValue,
BlockRetValue,
BreakValue,
LetScrutineeExpr,
ArrayLenExpr,
AnonConst,
@ -605,6 +606,7 @@ impl From<UnusedDelimsCtx> for &'static str {
UnusedDelimsCtx::MatchScrutineeExpr => "`match` scrutinee expression",
UnusedDelimsCtx::ReturnValue => "`return` value",
UnusedDelimsCtx::BlockRetValue => "block return value",
UnusedDelimsCtx::BreakValue => "`break` value",
UnusedDelimsCtx::LetScrutineeExpr => "`let` scrutinee expression",
UnusedDelimsCtx::ArrayLenExpr | UnusedDelimsCtx::AnonConst => "const expression",
UnusedDelimsCtx::MatchArmExpr => "match arm expression",
@ -913,6 +915,10 @@ trait UnusedDelimLint {
(value, UnusedDelimsCtx::ReturnValue, false, Some(left), None, true)
}
Break(_, Some(ref value)) => {
(value, UnusedDelimsCtx::BreakValue, false, None, None, true)
}
Index(_, ref value, _) => (value, UnusedDelimsCtx::IndexExpr, false, None, None, false),
Assign(_, ref value, _) | AssignOp(.., ref value) => {
@ -1063,6 +1069,9 @@ impl UnusedDelimLint for UnusedParens {
_,
_,
) if node.is_lazy()))
&& !((ctx == UnusedDelimsCtx::ReturnValue
|| ctx == UnusedDelimsCtx::BreakValue)
&& matches!(inner.kind, ast::ExprKind::Assign(_, _, _)))
{
self.emit_unused_delims_expr(cx, value, ctx, left_pos, right_pos, is_kw)
}

4
compiler/rustc_lint_defs/src/builtin.rs
View File

@ -4185,7 +4185,7 @@ declare_lint! {
Warn,
"never type fallback affecting unsafe function calls",
@future_incompatible = FutureIncompatibleInfo {
reason: FutureIncompatibilityReason::FutureReleaseSemanticsChange,
reason: FutureIncompatibilityReason::EditionAndFutureReleaseSemanticsChange(Edition::Edition2024),
reference: "issue #123748 <https://github.com/rust-lang/rust/issues/123748>",
};
@edition Edition2024 => Deny;
@ -4239,7 +4239,7 @@ declare_lint! {
Warn,
"never type fallback affecting unsafe function calls",
@future_incompatible = FutureIncompatibleInfo {
reason: FutureIncompatibilityReason::FutureReleaseErrorDontReportInDeps,
reason: FutureIncompatibilityReason::EditionAndFutureReleaseError(Edition::Edition2024),
reference: "issue #123748 <https://github.com/rust-lang/rust/issues/123748>",
};
report_in_external_macro

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

@ -381,6 +381,8 @@ pub enum FutureIncompatibilityReason {
/// hard errors (and the lint removed). Preferably when there is some
/// confidence that the number of impacted projects is very small (few
/// should have a broken dependency in their dependency tree).
///
/// [`EditionAndFutureReleaseError`]: FutureIncompatibilityReason::EditionAndFutureReleaseError
FutureReleaseErrorReportInDeps,
/// Code that changes meaning in some way in a
/// future release.
@ -419,6 +421,28 @@ pub enum FutureIncompatibilityReason {
/// slightly changes the text of the diagnostic, but is otherwise the
/// same.
EditionSemanticsChange(Edition),
/// This will be an error in the provided edition *and* in a future
/// release.
///
/// This variant a combination of [`FutureReleaseErrorDontReportInDeps`]
/// and [`EditionError`]. This is useful in rare cases when we
/// want to have "preview" of a breaking change in an edition, but do a
/// breaking change later on all editions anyway.
///
/// [`EditionError`]: FutureIncompatibilityReason::EditionError
/// [`FutureReleaseErrorDontReportInDeps`]: FutureIncompatibilityReason::FutureReleaseErrorDontReportInDeps
EditionAndFutureReleaseError(Edition),
/// This will change meaning in the provided edition *and* in a future
/// release.
///
/// This variant a combination of [`FutureReleaseSemanticsChange`]
/// and [`EditionSemanticsChange`]. This is useful in rare cases when we
/// want to have "preview" of a breaking change in an edition, but do a
/// breaking change later on all editions anyway.
///
/// [`EditionSemanticsChange`]: FutureIncompatibilityReason::EditionSemanticsChange
/// [`FutureReleaseSemanticsChange`]: FutureIncompatibilityReason::FutureReleaseSemanticsChange
EditionAndFutureReleaseSemanticsChange(Edition),
/// A custom reason.
///
/// Choose this variant if the built-in text of the diagnostic of the
@ -431,9 +455,15 @@ pub enum FutureIncompatibilityReason {
impl FutureIncompatibilityReason {
pub fn edition(self) -> Option<Edition> {
match self {
Self::EditionError(e) => Some(e),
Self::EditionSemanticsChange(e) => Some(e),
_ => None,
Self::EditionError(e)
| Self::EditionSemanticsChange(e)
| Self::EditionAndFutureReleaseError(e)
| Self::EditionAndFutureReleaseSemanticsChange(e) => Some(e),
FutureIncompatibilityReason::FutureReleaseErrorDontReportInDeps
| FutureIncompatibilityReason::FutureReleaseErrorReportInDeps
| FutureIncompatibilityReason::FutureReleaseSemanticsChange
| FutureIncompatibilityReason::Custom(_) => None,
}
}
}

11
compiler/rustc_middle/src/lint.rs
View File

@ -382,6 +382,17 @@ pub fn lint_level(
FutureIncompatibilityReason::EditionSemanticsChange(edition) => {
format!("this changes meaning in Rust {edition}")
}
FutureIncompatibilityReason::EditionAndFutureReleaseError(edition) => {
format!(
"this was previously accepted by the compiler but is being phased out; \
it will become a hard error in Rust {edition} and in a future release in all editions!"
)
}
FutureIncompatibilityReason::EditionAndFutureReleaseSemanticsChange(edition) => {
format!(
"this changes meaning in Rust {edition} and in a future release in all editions!"
)
}
FutureIncompatibilityReason::Custom(reason) => reason.to_owned(),
};

8
tests/ui/delegation/unsupported.rs
View File

@ -10,15 +10,11 @@ mod opaque {
mod to_reuse {
use super::Trait;
pub fn opaque_ret() -> impl Trait { unimplemented!() }
//~^ warn: this function depends on never type fallback being `()`
//~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
pub fn opaque_ret() -> impl Trait { () }
}
trait ToReuse {
fn opaque_ret() -> impl Trait { unimplemented!() }
//~^ warn: this function depends on never type fallback being `()`
//~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
fn opaque_ret() -> impl Trait { () }
}
// FIXME: Inherited `impl Trait`s create query cycles when used inside trait impls.

61
tests/ui/delegation/unsupported.stderr
View File

@ -1,74 +1,43 @@
error[E0391]: cycle detected when computing type of `opaque::<impl at $DIR/unsupported.rs:25:5: 25:24>::{synthetic#0}`
--> $DIR/unsupported.rs:26:25
error[E0391]: cycle detected when computing type of `opaque::<impl at $DIR/unsupported.rs:21:5: 21:24>::{synthetic#0}`
--> $DIR/unsupported.rs:22:25
|
LL | reuse to_reuse::opaque_ret;
| ^^^^^^^^^^
|
note: ...which requires comparing an impl and trait method signature, inferring any hidden `impl Trait` types in the process...
--> $DIR/unsupported.rs:26:25
--> $DIR/unsupported.rs:22:25
|
LL | reuse to_reuse::opaque_ret;
| ^^^^^^^^^^
= note: ...which again requires computing type of `opaque::<impl at $DIR/unsupported.rs:25:5: 25:24>::{synthetic#0}`, completing the cycle
note: cycle used when checking that `opaque::<impl at $DIR/unsupported.rs:25:5: 25:24>` is well-formed
--> $DIR/unsupported.rs:25:5
= note: ...which again requires computing type of `opaque::<impl at $DIR/unsupported.rs:21:5: 21:24>::{synthetic#0}`, completing the cycle
note: cycle used when checking that `opaque::<impl at $DIR/unsupported.rs:21:5: 21:24>` is well-formed
--> $DIR/unsupported.rs:21:5
|
LL | impl ToReuse for u8 {
| ^^^^^^^^^^^^^^^^^^^
= note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
warning: this function depends on never type fallback being `()`
--> $DIR/unsupported.rs:13:9
|
LL | pub fn opaque_ret() -> impl Trait { unimplemented!() }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: opaque::Trait` will fail
--> $DIR/unsupported.rs:13:32
|
LL | pub fn opaque_ret() -> impl Trait { unimplemented!() }
| ^^^^^^^^^^
= note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
warning: this function depends on never type fallback being `()`
--> $DIR/unsupported.rs:19:9
|
LL | fn opaque_ret() -> impl Trait { unimplemented!() }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: opaque::Trait` will fail
--> $DIR/unsupported.rs:19:28
|
LL | fn opaque_ret() -> impl Trait { unimplemented!() }
| ^^^^^^^^^^
error[E0391]: cycle detected when computing type of `opaque::<impl at $DIR/unsupported.rs:28:5: 28:25>::{synthetic#0}`
--> $DIR/unsupported.rs:29:24
error[E0391]: cycle detected when computing type of `opaque::<impl at $DIR/unsupported.rs:24:5: 24:25>::{synthetic#0}`
--> $DIR/unsupported.rs:25:24
|
LL | reuse ToReuse::opaque_ret;
| ^^^^^^^^^^
|
note: ...which requires comparing an impl and trait method signature, inferring any hidden `impl Trait` types in the process...
--> $DIR/unsupported.rs:29:24
--> $DIR/unsupported.rs:25:24
|
LL | reuse ToReuse::opaque_ret;
| ^^^^^^^^^^
= note: ...which again requires computing type of `opaque::<impl at $DIR/unsupported.rs:28:5: 28:25>::{synthetic#0}`, completing the cycle
note: cycle used when checking that `opaque::<impl at $DIR/unsupported.rs:28:5: 28:25>` is well-formed
--> $DIR/unsupported.rs:28:5
= note: ...which again requires computing type of `opaque::<impl at $DIR/unsupported.rs:24:5: 24:25>::{synthetic#0}`, completing the cycle
note: cycle used when checking that `opaque::<impl at $DIR/unsupported.rs:24:5: 24:25>` is well-formed
--> $DIR/unsupported.rs:24:5
|
LL | impl ToReuse for u16 {
| ^^^^^^^^^^^^^^^^^^^^
= note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
error: recursive delegation is not supported yet
--> $DIR/unsupported.rs:42:22
--> $DIR/unsupported.rs:38:22
|
LL | pub reuse to_reuse2::foo;
| --- callee defined here
@ -77,14 +46,14 @@ LL | reuse to_reuse1::foo;
| ^^^
error[E0283]: type annotations needed
--> $DIR/unsupported.rs:52:18
--> $DIR/unsupported.rs:48:18
|
LL | reuse Trait::foo;
| ^^^ cannot infer type
|
= note: cannot satisfy `_: effects::Trait`
error: aborting due to 4 previous errors; 2 warnings emitted
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0283, E0391.
For more information about an error, try `rustc --explain E0283`.

6
tests/ui/editions/never-type-fallback-breaking.e2021.fixed
View File

@ -16,7 +16,7 @@ fn main() {
fn m() {
//[e2021]~^ this function depends on never type fallback being `()`
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
let x: () = match true {
true => Default::default(),
//[e2024]~^ error: the trait bound `!: Default` is not satisfied
@ -28,7 +28,7 @@ fn m() {
fn q() -> Option<()> {
//[e2021]~^ this function depends on never type fallback being `()`
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
fn deserialize<T: Default>() -> Option<T> {
Some(T::default())
}
@ -45,7 +45,7 @@ fn help<'a: 'a, T: Into<()>, U>(_: U) -> Result<T, ()> {
}
fn meow() -> Result<(), ()> {
//[e2021]~^ this function depends on never type fallback being `()`
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
help::<(), _>(1)?;
//[e2024]~^ error: the trait bound `(): From<!>` is not satisfied
Ok(())

6
tests/ui/editions/never-type-fallback-breaking.e2021.stderr
View File

@ -4,7 +4,7 @@ warning: this function depends on never type fallback being `()`
LL | fn m() {
| ^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: Default` will fail
@ -24,7 +24,7 @@ warning: this function depends on never type fallback being `()`
LL | fn q() -> Option<()> {
| ^^^^^^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: Default` will fail
@ -43,7 +43,7 @@ warning: this function depends on never type fallback being `()`
LL | fn meow() -> Result<(), ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `(): From<!>` will fail

6
tests/ui/editions/never-type-fallback-breaking.rs
View File

@ -16,7 +16,7 @@ fn main() {
fn m() {
//[e2021]~^ this function depends on never type fallback being `()`
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
let x = match true {
true => Default::default(),
//[e2024]~^ error: the trait bound `!: Default` is not satisfied
@ -28,7 +28,7 @@ fn m() {
fn q() -> Option<()> {
//[e2021]~^ this function depends on never type fallback being `()`
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
fn deserialize<T: Default>() -> Option<T> {
Some(T::default())
}
@ -45,7 +45,7 @@ fn help<'a: 'a, T: Into<()>, U>(_: U) -> Result<T, ()> {
}
fn meow() -> Result<(), ()> {
//[e2021]~^ this function depends on never type fallback being `()`
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[e2021]~| this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
help(1)?;
//[e2024]~^ error: the trait bound `(): From<!>` is not satisfied
Ok(())

20
tests/ui/impl-trait/precise-capturing/auxiliary/no-use-macro.rs Normal file
View File

@ -0,0 +1,20 @@
// A macro_rules macro in 2015 that has an RPIT without `use<>` that would
// cause a problem with 2024 capturing rules.
#[macro_export]
macro_rules! macro_rpit {
() => {
fn test_mbe(x: &Vec<i32>) -> impl std::fmt::Display {
x[0]
}
pub fn from_mbe() {
let mut x = vec![];
x.push(1);
let element = test_mbe(&x);
x.push(2);
println!("{element}");
}
};
}

29
tests/ui/impl-trait/precise-capturing/auxiliary/no-use-pm.rs Normal file
View File

@ -0,0 +1,29 @@
// A proc-macro in 2015 that has an RPIT without `use<>` that would cause a
// problem with 2024 capturing rules.
//@ force-host
//@ no-prefer-dynamic
#![crate_type = "proc-macro"]
extern crate proc_macro;
use proc_macro::TokenStream;
#[proc_macro]
pub fn pm_rpit(input: TokenStream) -> TokenStream {
"fn test_pm(x: &Vec<i32>) -> impl std::fmt::Display {
x[0]
}
pub fn from_pm() {
let mut x = vec![];
x.push(1);
let element = test_pm(&x);
x.push(2);
println!(\"{element}\");
}
"
.parse()
.unwrap()
}

26
tests/ui/impl-trait/precise-capturing/external-macro.rs Normal file
View File

@ -0,0 +1,26 @@
// Tests that code generated from an external macro (MBE and proc-macro) that
// has an RPIT will not fail when the call-site is 2024.
// https://github.com/rust-lang/rust/issues/132917
//@ aux-crate: no_use_pm=no-use-pm.rs
//@ aux-crate: no_use_macro=no-use-macro.rs
//@ edition: 2024
//@ compile-flags:-Z unstable-options
//@ check-pass
no_use_pm::pm_rpit!{}
no_use_macro::macro_rpit!{}
fn main() {
let mut x = vec![];
x.push(1);
let element = test_pm(&x);
x.push(2);
println!("{element}");
let element = test_mbe(&x);
x.push(2);
println!("{element}");
}

8
tests/ui/lint/unused/issue-54538-unused-parens-lint.fixed
View File

@ -10,7 +10,7 @@
unused_mut,
unused_variables
)]
#![deny(unused_parens)]
#![deny(unused_parens, unused_braces)]
fn lint_on_top_level() {
let a = 0; //~ ERROR unnecessary parentheses around pattern
@ -43,8 +43,10 @@ fn no_lint_ops() {
fn lint_break_if_not_followed_by_block() {
#![allow(unreachable_code)]
loop { if break {} } //~ ERROR unnecessary parentheses
loop { if break ({ println!("hello") }) {} } //~ ERROR unnecessary parentheses
loop { if (break { println!("hello") }) {} }
loop { if break { println!("hello") } {} }
//~^ ERROR unnecessary parentheses around `if` condition
//~| ERROR unnecessary parentheses around `break` value
loop { if (break println!("hello")) {} } //~ ERROR unnecessary braces around `break` value
}
// Don't lint in these cases (#64106).

8
tests/ui/lint/unused/issue-54538-unused-parens-lint.rs
View File

@ -10,7 +10,7 @@
unused_mut,
unused_variables
)]
#![deny(unused_parens)]
#![deny(unused_parens, unused_braces)]
fn lint_on_top_level() {
let (a) = 0; //~ ERROR unnecessary parentheses around pattern
@ -43,8 +43,10 @@ fn no_lint_ops() {
fn lint_break_if_not_followed_by_block() {
#![allow(unreachable_code)]
loop { if (break) {} } //~ ERROR unnecessary parentheses
loop { if (break ({ println!("hello") })) {} } //~ ERROR unnecessary parentheses
loop { if (break { println!("hello") }) {} }
loop { if (break ({ println!("hello") })) {} }
//~^ ERROR unnecessary parentheses around `if` condition
//~| ERROR unnecessary parentheses around `break` value
loop { if (break { println!("hello") }) {} } //~ ERROR unnecessary braces around `break` value
}
// Don't lint in these cases (#64106).

69
tests/ui/lint/unused/issue-54538-unused-parens-lint.stderr
View File

@ -7,7 +7,7 @@ LL | let (a) = 0;
note: the lint level is defined here
--> $DIR/issue-54538-unused-parens-lint.rs:13:9
|
LL | #![deny(unused_parens)]
LL | #![deny(unused_parens, unused_braces)]
| ^^^^^^^^^^^^^
help: remove these parentheses
|
@ -99,8 +99,37 @@ LL - loop { if (break ({ println!("hello") })) {} }
LL + loop { if break ({ println!("hello") }) {} }
|
error: unnecessary parentheses around `break` value
--> $DIR/issue-54538-unused-parens-lint.rs:46:22
|
LL | loop { if (break ({ println!("hello") })) {} }
| ^ ^
|
help: remove these parentheses
|
LL - loop { if (break ({ println!("hello") })) {} }
LL + loop { if (break { println!("hello") }) {} }
|
error: unnecessary braces around `break` value
--> $DIR/issue-54538-unused-parens-lint.rs:49:22
|
LL | loop { if (break { println!("hello") }) {} }
| ^^ ^^
|
note: the lint level is defined here
--> $DIR/issue-54538-unused-parens-lint.rs:13:24
|
LL | #![deny(unused_parens, unused_braces)]
| ^^^^^^^^^^^^^
help: remove these braces
|
LL - loop { if (break { println!("hello") }) {} }
LL + loop { if (break println!("hello")) {} }
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:71:12
--> $DIR/issue-54538-unused-parens-lint.rs:73:12
|
LL | if let (0 | 1) = 0 {}
| ^ ^
@ -112,7 +141,7 @@ LL + if let 0 | 1 = 0 {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:72:13
--> $DIR/issue-54538-unused-parens-lint.rs:74:13
|
LL | if let ((0 | 1),) = (0,) {}
| ^ ^
@ -124,7 +153,7 @@ LL + if let (0 | 1,) = (0,) {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:73:13
--> $DIR/issue-54538-unused-parens-lint.rs:75:13
|
LL | if let [(0 | 1)] = [0] {}
| ^ ^
@ -136,7 +165,7 @@ LL + if let [0 | 1] = [0] {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:74:16
--> $DIR/issue-54538-unused-parens-lint.rs:76:16
|
LL | if let 0 | (1 | 2) = 0 {}
| ^ ^
@ -148,7 +177,7 @@ LL + if let 0 | 1 | 2 = 0 {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:76:15
--> $DIR/issue-54538-unused-parens-lint.rs:78:15
|
LL | if let TS((0 | 1)) = TS(0) {}
| ^ ^
@ -160,7 +189,7 @@ LL + if let TS(0 | 1) = TS(0) {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:78:20
--> $DIR/issue-54538-unused-parens-lint.rs:80:20
|
LL | if let NS { f: (0 | 1) } = (NS { f: 0 }) {}
| ^ ^
@ -172,7 +201,7 @@ LL + if let NS { f: 0 | 1 } = (NS { f: 0 }) {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:88:9
--> $DIR/issue-54538-unused-parens-lint.rs:90:9
|
LL | (_) => {}
| ^ ^
@ -184,7 +213,7 @@ LL + _ => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:89:9
--> $DIR/issue-54538-unused-parens-lint.rs:91:9
|
LL | (y) => {}
| ^ ^
@ -196,7 +225,7 @@ LL + y => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:90:9
--> $DIR/issue-54538-unused-parens-lint.rs:92:9
|
LL | (ref r) => {}
| ^ ^
@ -208,7 +237,7 @@ LL + ref r => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:91:9
--> $DIR/issue-54538-unused-parens-lint.rs:93:9
|
LL | (e @ 1...2) => {}
| ^ ^
@ -220,7 +249,7 @@ LL + e @ 1...2 => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:97:9
--> $DIR/issue-54538-unused-parens-lint.rs:99:9
|
LL | (e @ &(1...2)) => {}
| ^ ^
@ -232,7 +261,7 @@ LL + e @ &(1...2) => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:98:10
--> $DIR/issue-54538-unused-parens-lint.rs:100:10
|
LL | &(_) => {}
| ^ ^
@ -244,7 +273,7 @@ LL + &_ => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:109:9
--> $DIR/issue-54538-unused-parens-lint.rs:111:9
|
LL | (_) => {}
| ^ ^
@ -256,7 +285,7 @@ LL + _ => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:110:9
--> $DIR/issue-54538-unused-parens-lint.rs:112:9
|
LL | (y) => {}
| ^ ^
@ -268,7 +297,7 @@ LL + y => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:111:9
--> $DIR/issue-54538-unused-parens-lint.rs:113:9
|
LL | (ref r) => {}
| ^ ^
@ -280,7 +309,7 @@ LL + ref r => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:112:9
--> $DIR/issue-54538-unused-parens-lint.rs:114:9
|
LL | (e @ 1..=2) => {}
| ^ ^
@ -292,7 +321,7 @@ LL + e @ 1..=2 => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:118:9
--> $DIR/issue-54538-unused-parens-lint.rs:120:9
|
LL | (e @ &(1..=2)) => {}
| ^ ^
@ -304,7 +333,7 @@ LL + e @ &(1..=2) => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:119:10
--> $DIR/issue-54538-unused-parens-lint.rs:121:10
|
LL | &(_) => {}
| ^ ^
@ -315,5 +344,5 @@ LL - &(_) => {}
LL + &_ => {}
|
error: aborting due to 26 previous errors
error: aborting due to 28 previous errors

32
tests/ui/lint/unused/unused-parens-assign-expr-in-ret-issue-131989.fixed Normal file
View File

@ -0,0 +1,32 @@
//@ run-rustfix
#![deny(unused_parens)]
#![allow(unreachable_code)]
fn foo() {
loop {
break (_ = 42);
// lint unused_parens should not be triggered here.
}
let _ = loop {
let a = 1;
let b = 2;
break a + b; //~ERROR unnecessary parentheses
};
loop {
if break return () {
//~^ ERROR unnecessary parentheses
}
if break return () {
//~^ ERROR unnecessary parentheses
}
}
return (_ = 42);
// lint unused_parens should not be triggered here.
}
fn main() {
let _ = foo();
}

32
tests/ui/lint/unused/unused-parens-assign-expr-in-ret-issue-131989.rs Normal file
View File

@ -0,0 +1,32 @@
//@ run-rustfix
#![deny(unused_parens)]
#![allow(unreachable_code)]
fn foo() {
loop {
break (_ = 42);
// lint unused_parens should not be triggered here.
}
let _ = loop {
let a = 1;
let b = 2;
break (a + b); //~ERROR unnecessary parentheses
};
loop {
if (break return ()) {
//~^ ERROR unnecessary parentheses
}
if break (return ()) {
//~^ ERROR unnecessary parentheses
}
}
return (_ = 42);
// lint unused_parens should not be triggered here.
}
fn main() {
let _ = foo();
}

43
tests/ui/lint/unused/unused-parens-assign-expr-in-ret-issue-131989.stderr Normal file
View File

@ -0,0 +1,43 @@
error: unnecessary parentheses around `break` value
--> $DIR/unused-parens-assign-expr-in-ret-issue-131989.rs:14:15
|
LL | break (a + b);
| ^ ^
|
note: the lint level is defined here
--> $DIR/unused-parens-assign-expr-in-ret-issue-131989.rs:2:9
|
LL | #![deny(unused_parens)]
| ^^^^^^^^^^^^^
help: remove these parentheses
|
LL - break (a + b);
LL + break a + b;
|
error: unnecessary parentheses around `if` condition
--> $DIR/unused-parens-assign-expr-in-ret-issue-131989.rs:18:12
|
LL | if (break return ()) {
| ^ ^
|
help: remove these parentheses
|
LL - if (break return ()) {
LL + if break return () {
|
error: unnecessary parentheses around `break` value
--> $DIR/unused-parens-assign-expr-in-ret-issue-131989.rs:21:18
|
LL | if break (return ()) {
| ^ ^
|
help: remove these parentheses
|
LL - if break (return ()) {
LL + if break return () {
|
error: aborting due to 3 previous errors

2
tests/ui/lint/unused_parens_json_suggestion.fixed
View File

@ -9,7 +9,7 @@
// test of the JSON error format.
#![deny(unused_parens)]
#![allow(unreachable_code)]
#![allow(unreachable_code, unused_braces)]
fn main() {
// We want to suggest the properly-balanced expression `1 / (2 + 3)`, not

2
tests/ui/lint/unused_parens_json_suggestion.rs
View File

@ -9,7 +9,7 @@
// test of the JSON error format.
#![deny(unused_parens)]
#![allow(unreachable_code)]
#![allow(unreachable_code, unused_braces)]
fn main() {
// We want to suggest the properly-balanced expression `1 / (2 + 3)`, not

2
tests/ui/lint/unused_parens_json_suggestion.stderr
View File

@ -1,4 +1,4 @@
{"$message_type":"diagnostic","message":"unnecessary parentheses around assigned value","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":621,"byte_end":622,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":633,"byte_end":634,"line_start":17,"line_end":17,"column_start":26,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":26,"highlight_end":27}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"the lint level is defined here","code":null,"level":"note","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":439,"byte_end":452,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":621,"byte_end":622,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":633,"byte_end":634,"line_start":17,"line_end":17,"column_start":26,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":26,"highlight_end":27}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around assigned value
{"$message_type":"diagnostic","message":"unnecessary parentheses around assigned value","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":636,"byte_end":637,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":648,"byte_end":649,"line_start":17,"line_end":17,"column_start":26,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":26,"highlight_end":27}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"the lint level is defined here","code":null,"level":"note","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":439,"byte_end":452,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":636,"byte_end":637,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":648,"byte_end":649,"line_start":17,"line_end":17,"column_start":26,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":26,"highlight_end":27}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around assigned value
--> $DIR/unused_parens_json_suggestion.rs:17:14
|
LL | let _a = (1 / (2 + 3));

2
tests/ui/lint/unused_parens_remove_json_suggestion.fixed
View File

@ -9,7 +9,7 @@
// test of the JSON error format.
#![deny(unused_parens)]
#![allow(unreachable_code)]
#![allow(unreachable_code, unused_braces)]
fn main() {

2
tests/ui/lint/unused_parens_remove_json_suggestion.rs
View File

@ -9,7 +9,7 @@
// test of the JSON error format.
#![deny(unused_parens)]
#![allow(unreachable_code)]
#![allow(unreachable_code, unused_braces)]
fn main() {

18
tests/ui/lint/unused_parens_remove_json_suggestion.stderr
View File

@ -1,4 +1,4 @@
{"$message_type":"diagnostic","message":"unnecessary parentheses around `if` condition","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":525,"byte_end":526,"line_start":18,"line_end":18,"column_start":8,"column_end":9,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":8,"highlight_end":9}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":528,"byte_end":529,"line_start":18,"line_end":18,"column_start":11,"column_end":12,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":11,"highlight_end":12}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"the lint level is defined here","code":null,"level":"note","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":439,"byte_end":452,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":525,"byte_end":526,"line_start":18,"line_end":18,"column_start":8,"column_end":9,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":8,"highlight_end":9}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":528,"byte_end":529,"line_start":18,"line_end":18,"column_start":11,"column_end":12,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":11,"highlight_end":12}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around `if` condition
{"$message_type":"diagnostic","message":"unnecessary parentheses around `if` condition","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":540,"byte_end":541,"line_start":18,"line_end":18,"column_start":8,"column_end":9,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":8,"highlight_end":9}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":543,"byte_end":544,"line_start":18,"line_end":18,"column_start":11,"column_end":12,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":11,"highlight_end":12}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"the lint level is defined here","code":null,"level":"note","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":439,"byte_end":452,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":540,"byte_end":541,"line_start":18,"line_end":18,"column_start":8,"column_end":9,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":8,"highlight_end":9}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":543,"byte_end":544,"line_start":18,"line_end":18,"column_start":11,"column_end":12,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":11,"highlight_end":12}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around `if` condition
--> $DIR/unused_parens_remove_json_suggestion.rs:18:8
|
LL | if (_b) {
@ -16,7 +16,7 @@ LL + if _b {
|
"}
{"$message_type":"diagnostic","message":"unnecessary parentheses around `if` condition","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":622,"byte_end":623,"line_start":29,"line_end":29,"column_start":7,"column_end":8,"is_primary":true,"text":[{"text":" if(c) {","highlight_start":7,"highlight_end":8}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":624,"byte_end":625,"line_start":29,"line_end":29,"column_start":9,"column_end":10,"is_primary":true,"text":[{"text":" if(c) {","highlight_start":9,"highlight_end":10}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":622,"byte_end":623,"line_start":29,"line_end":29,"column_start":7,"column_end":8,"is_primary":true,"text":[{"text":" if(c) {","highlight_start":7,"highlight_end":8}],"label":null,"suggested_replacement":" ","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":624,"byte_end":625,"line_start":29,"line_end":29,"column_start":9,"column_end":10,"is_primary":true,"text":[{"text":" if(c) {","highlight_start":9,"highlight_end":10}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around `if` condition
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--> $DIR/unused_parens_remove_json_suggestion.rs:29:7
|
LL | if(c) {
@ -29,7 +29,7 @@ LL + if c {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:33:8
|
LL | if (c){
@ -42,7 +42,7 @@ LL + if c {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:37:11
|
LL | while (false && true){
@ -55,7 +55,7 @@ LL + while false && true {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:38:12
|
LL | if (c) {
@ -68,7 +68,7 @@ LL + if c {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:44:10
|
LL | while(true && false) {
@ -81,7 +81,7 @@ LL + while true && false {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:45:18
|
LL | for _ in (0 .. 3){
@ -94,7 +94,7 @@ LL + for _ in 0 .. 3 {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:50:14
|
LL | for _ in (0 .. 3) {
@ -107,7 +107,7 @@ LL + for _ in 0 .. 3 {
|
"}
{"$message_type":"diagnostic","message":"unnecessary parentheses around `while` condition","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":934,"byte_end":935,"line_start":51,"line_end":51,"column_start":15,"column_end":16,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":15,"highlight_end":16}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":948,"byte_end":949,"line_start":51,"line_end":51,"column_start":29,"column_end":30,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":29,"highlight_end":30}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":934,"byte_end":935,"line_start":51,"line_end":51,"column_start":15,"column_end":16,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":15,"highlight_end":16}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":948,"byte_end":949,"line_start":51,"line_end":51,"column_start":29,"column_end":30,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":29,"highlight_end":30}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around `while` condition
{"$message_type":"diagnostic","message":"unnecessary parentheses around `while` condition","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":949,"byte_end":950,"line_start":51,"line_end":51,"column_start":15,"column_end":16,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":15,"highlight_end":16}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":963,"byte_end":964,"line_start":51,"line_end":51,"column_start":29,"column_end":30,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":29,"highlight_end":30}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":949,"byte_end":950,"line_start":51,"line_end":51,"column_start":15,"column_end":16,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":15,"highlight_end":16}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":963,"byte_end":964,"line_start":51,"line_end":51,"column_start":29,"column_end":30,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":29,"highlight_end":30}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around `while` condition
--> $DIR/unused_parens_remove_json_suggestion.rs:51:15
|
LL | while (true && false) {

2
tests/ui/never_type/defaulted-never-note.nofallback.stderr
View File

@ -4,7 +4,7 @@ warning: this function depends on never type fallback being `()`
LL | fn smeg() {
| ^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: ImplementedForUnitButNotNever` will fail

2
tests/ui/never_type/defaulted-never-note.rs
View File

@ -27,7 +27,7 @@ fn foo<T: ImplementedForUnitButNotNever>(_t: T) {}
//[fallback]~| NOTE required by a bound in `foo`
fn smeg() {
//[nofallback]~^ warn: this function depends on never type fallback being `()`
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
let _x = return;
foo(_x);
//[fallback]~^ ERROR the trait bound

4
tests/ui/never_type/dependency-on-fallback-to-unit.rs
View File

@ -7,7 +7,7 @@ fn main() {
fn def() {
//~^ warn: this function depends on never type fallback being `()`
//~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
match true {
false => <_>::default(),
true => return,
@ -18,7 +18,7 @@ fn def() {
// <https://github.com/rust-lang/rust/issues/39216>
fn question_mark() -> Result<(), ()> {
//~^ warn: this function depends on never type fallback being `()`
//~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
deserialize()?;
Ok(())
}

4
tests/ui/never_type/dependency-on-fallback-to-unit.stderr
View File

@ -4,7 +4,7 @@ warning: this function depends on never type fallback being `()`
LL | fn def() {
| ^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: Default` will fail
@ -24,7 +24,7 @@ warning: this function depends on never type fallback being `()`
LL | fn question_mark() -> Result<(), ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: Default` will fail

4
tests/ui/never_type/diverging-fallback-control-flow.nofallback.stderr
View File

@ -4,7 +4,7 @@ warning: this function depends on never type fallback being `()`
LL | fn assignment() {
| ^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: UnitDefault` will fail
@ -24,7 +24,7 @@ warning: this function depends on never type fallback being `()`
LL | fn assignment_rev() {
| ^^^^^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: UnitDefault` will fail

4
tests/ui/never_type/diverging-fallback-control-flow.rs
View File

@ -29,7 +29,7 @@ impl UnitDefault for () {
fn assignment() {
//[nofallback]~^ warn: this function depends on never type fallback being `()`
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
let x;
if true {
@ -41,7 +41,7 @@ fn assignment() {
fn assignment_rev() {
//[nofallback]~^ warn: this function depends on never type fallback being `()`
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
let x;
if true {

2
tests/ui/never_type/diverging-fallback-no-leak.nofallback.stderr
View File

@ -4,7 +4,7 @@ warning: this function depends on never type fallback being `()`
LL | fn main() {
| ^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: Test` will fail

2
tests/ui/never_type/diverging-fallback-no-leak.rs
View File

@ -13,7 +13,7 @@ fn unconstrained_arg<T: Test>(_: T) {}
fn main() {
//[nofallback]~^ warn: this function depends on never type fallback being `()`
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
// Here the type variable falls back to `!`,
// and hence we get a type error.

2
tests/ui/never_type/diverging-fallback-unconstrained-return.nofallback.stderr
View File

@ -4,7 +4,7 @@ warning: this function depends on never type fallback being `()`
LL | fn main() {
| ^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: UnitReturn` will fail

2
tests/ui/never_type/diverging-fallback-unconstrained-return.rs
View File

@ -27,7 +27,7 @@ fn unconstrained_return<T: UnitReturn>() -> T {
fn main() {
//[nofallback]~^ warn: this function depends on never type fallback being `()`
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
// In Ye Olde Days, the `T` parameter of `unconstrained_return`
// winds up "entangled" with the `!` type that results from

2
tests/ui/never_type/fallback-closure-ret.nofallback.stderr
View File

@ -4,7 +4,7 @@ warning: this function depends on never type fallback being `()`
LL | fn main() {
| ^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: Bar` will fail

2
tests/ui/never_type/fallback-closure-ret.rs
View File

@ -20,6 +20,6 @@ fn foo<R: Bar>(_: impl Fn() -> R) {}
fn main() {
//[nofallback]~^ warn: this function depends on never type fallback being `()`
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//[nofallback]~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
foo(|| panic!());
}

2
tests/ui/never_type/impl_trait_fallback.rs
View File

@ -7,6 +7,6 @@ impl T for () {}
fn should_ret_unit() -> impl T {
//~^ warn: this function depends on never type fallback being `()`
//~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
//~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
panic!()
}

2
tests/ui/never_type/impl_trait_fallback.stderr
View File

@ -4,7 +4,7 @@ warning: this function depends on never type fallback being `()`
LL | fn should_ret_unit() -> impl T {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: T` will fail

20
tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2015.stderr
View File

@ -4,7 +4,7 @@ warning: never type fallback affects this call to an `unsafe` function
LL | unsafe { mem::zeroed() }
| ^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
= note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default
@ -19,7 +19,7 @@ warning: never type fallback affects this call to an `unsafe` function
LL | core::mem::transmute(Zst)
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -33,7 +33,7 @@ warning: never type fallback affects this union access
LL | unsafe { Union { a: () }.b }
| ^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
@ -43,7 +43,7 @@ warning: never type fallback affects this raw pointer dereference
LL | unsafe { *ptr::from_ref(&()).cast() }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -57,7 +57,7 @@ warning: never type fallback affects this call to an `unsafe` function
LL | unsafe { internally_create(x) }
| ^^^^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -71,7 +71,7 @@ warning: never type fallback affects this call to an `unsafe` function
LL | unsafe { zeroed() }
| ^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -85,7 +85,7 @@ warning: never type fallback affects this `unsafe` function
LL | let zeroed = mem::zeroed;
| ^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -99,7 +99,7 @@ warning: never type fallback affects this `unsafe` function
LL | let f = internally_create;
| ^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -113,7 +113,7 @@ warning: never type fallback affects this call to an `unsafe` method
LL | S(marker::PhantomData).create_out_of_thin_air()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
@ -126,7 +126,7 @@ LL | match send_message::<_ /* ?0 */>() {
LL | msg_send!();
| ----------- in this macro invocation
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
= note: this warning originates in the macro `msg_send` (in Nightly builds, run with -Z macro-backtrace for more info)

20
tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2024.stderr
View File

@ -4,7 +4,7 @@ error: never type fallback affects this call to an `unsafe` function
LL | unsafe { mem::zeroed() }
| ^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
= note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default
@ -19,7 +19,7 @@ error: never type fallback affects this call to an `unsafe` function
LL | core::mem::transmute(Zst)
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -33,7 +33,7 @@ error: never type fallback affects this union access
LL | unsafe { Union { a: () }.b }
| ^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
@ -43,7 +43,7 @@ error: never type fallback affects this raw pointer dereference
LL | unsafe { *ptr::from_ref(&()).cast() }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -57,7 +57,7 @@ error: never type fallback affects this call to an `unsafe` function
LL | unsafe { internally_create(x) }
| ^^^^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -71,7 +71,7 @@ error: never type fallback affects this call to an `unsafe` function
LL | unsafe { zeroed() }
| ^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -85,7 +85,7 @@ error: never type fallback affects this `unsafe` function
LL | let zeroed = mem::zeroed;
| ^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -99,7 +99,7 @@ error: never type fallback affects this `unsafe` function
LL | let f = internally_create;
| ^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
help: use `()` annotations to avoid fallback changes
@ -113,7 +113,7 @@ error: never type fallback affects this call to an `unsafe` method
LL | S(marker::PhantomData).create_out_of_thin_air()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
@ -126,7 +126,7 @@ LL | match send_message::<_ /* ?0 */>() {
LL | msg_send!();
| ----------- in this macro invocation
|
= warning: this will change its meaning in a future release!
= warning: this changes meaning in Rust 2024 and in a future release in all editions!
= note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
= help: specify the type explicitly
= note: this error originates in the macro `msg_send` (in Nightly builds, run with -Z macro-backtrace for more info)

20
tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.rs
View File

@ -13,7 +13,7 @@ fn _zero() {
unsafe { mem::zeroed() }
//[e2015]~^ warn: never type fallback affects this call to an `unsafe` function
//[e2024]~^^ error: never type fallback affects this call to an `unsafe` function
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
//[e2024]~| warning: the type `!` does not permit zero-initialization
} else {
return;
@ -30,7 +30,7 @@ fn _trans() {
core::mem::transmute(Zst)
//[e2015]~^ warn: never type fallback affects this call to an `unsafe` function
//[e2024]~^^ error: never type fallback affects this call to an `unsafe` function
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
}
} else {
return;
@ -47,7 +47,7 @@ fn _union() {
unsafe { Union { a: () }.b }
//[e2015]~^ warn: never type fallback affects this union access
//[e2024]~^^ error: never type fallback affects this union access
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
} else {
return;
};
@ -58,7 +58,7 @@ fn _deref() {
unsafe { *ptr::from_ref(&()).cast() }
//[e2015]~^ warn: never type fallback affects this raw pointer dereference
//[e2024]~^^ error: never type fallback affects this raw pointer dereference
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
} else {
return;
};
@ -79,7 +79,7 @@ fn _only_generics() {
unsafe { internally_create(x) }
//[e2015]~^ warn: never type fallback affects this call to an `unsafe` function
//[e2024]~^^ error: never type fallback affects this call to an `unsafe` function
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
x.unwrap()
} else {
@ -92,12 +92,12 @@ fn _stored_function() {
let zeroed = mem::zeroed;
//[e2015]~^ warn: never type fallback affects this `unsafe` function
//[e2024]~^^ error: never type fallback affects this `unsafe` function
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
unsafe { zeroed() }
//[e2015]~^ warn: never type fallback affects this call to an `unsafe` function
//[e2024]~^^ error: never type fallback affects this call to an `unsafe` function
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
} else {
return;
};
@ -115,7 +115,7 @@ fn _only_generics_stored_function() {
let f = internally_create;
//[e2015]~^ warn: never type fallback affects this `unsafe` function
//[e2024]~^^ error: never type fallback affects this `unsafe` function
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
unsafe { f(x) }
@ -140,7 +140,7 @@ fn _method() {
S(marker::PhantomData).create_out_of_thin_air()
//[e2015]~^ warn: never type fallback affects this call to an `unsafe` method
//[e2024]~^^ error: never type fallback affects this call to an `unsafe` method
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
}
} else {
return;
@ -158,7 +158,7 @@ fn _objc() {
match send_message::<_ /* ?0 */>() {
//[e2015]~^ warn: never type fallback affects this call to an `unsafe` function
//[e2024]~^^ error: never type fallback affects this call to an `unsafe` function
//~| warn: this will change its meaning in a future release!
//~| warn: this changes meaning in Rust 2024 and in a future release in all editions!
Ok(x) => x,
Err(_) => loop {},
}

6
tests/ui/structs-enums/enum-rec/issue-17431-6.rs
View File

@ -1,8 +1,6 @@
//@ ignore-apple: cycle error does not appear on apple
use std::cell::UnsafeCell;
use std::sync::Mutex;
enum Foo { X(Mutex<Option<Foo>>) }
enum Foo { X(UnsafeCell<Option<Foo>>) }
//~^ ERROR recursive type `Foo` has infinite size
//~| ERROR cycle detected

14
tests/ui/structs-enums/enum-rec/issue-17431-6.stderr
View File

@ -1,18 +1,18 @@
error[E0072]: recursive type `Foo` has infinite size
--> $DIR/issue-17431-6.rs:5:1
--> $DIR/issue-17431-6.rs:3:1
|
LL | enum Foo { X(Mutex<Option<Foo>>) }
| ^^^^^^^^ --- recursive without indirection
LL | enum Foo { X(UnsafeCell<Option<Foo>>) }
| ^^^^^^^^ --- recursive without indirection
|
help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
|
LL | enum Foo { X(Mutex<Option<Box<Foo>>>) }
| ++++ +
LL | enum Foo { X(UnsafeCell<Option<Box<Foo>>>) }
| ++++ +
error[E0391]: cycle detected when computing when `Foo` needs drop
--> $DIR/issue-17431-6.rs:5:1
--> $DIR/issue-17431-6.rs:3:1
|
LL | enum Foo { X(Mutex<Option<Foo>>) }
LL | enum Foo { X(UnsafeCell<Option<Foo>>) }
| ^^^^^^^^
|
= note: ...which immediately requires computing when `Foo` needs drop again