From 4913ab8f779582dc9da099a148a4670ede0e15aa Mon Sep 17 00:00:00 2001 From: Peter Jaszkowiak Date: Tue, 20 Feb 2024 20:55:13 -0700 Subject: [PATCH] Stabilize `LazyCell` and `LazyLock` (`lazy_cell`) --- .../rustc_const_eval/src/check_consts/ops.rs | 2 +- compiler/rustc_data_structures/src/lib.rs | 1 - compiler/rustc_error_messages/src/lib.rs | 1 - compiler/rustc_feature/src/lib.rs | 1 - compiler/rustc_hir_analysis/src/lib.rs | 1 - compiler/rustc_interface/src/lib.rs | 1 - compiler/rustc_lint_defs/src/builtin.rs | 10 ++--- compiler/rustc_session/src/lib.rs | 1 - library/core/src/cell.rs | 2 +- library/core/src/cell/lazy.rs | 20 ++++----- library/core/tests/lib.rs | 1 - library/std/src/lib.rs | 1 - library/std/src/sync/lazy_lock.rs | 41 +++++++++++-------- library/std/src/sync/mod.rs | 2 +- src/librustdoc/lib.rs | 1 - src/tools/clippy/clippy_dev/src/lib.rs | 1 - src/tools/clippy/src/driver.rs | 1 - src/tools/clippy/tests/compile-test.rs | 1 - src/tools/clippy/tests/dogfood.rs | 1 - .../clippy/tests/lint_message_convention.rs | 1 - src/tools/clippy/tests/workspace.rs | 2 - tests/ui/borrowck/issue-64453.stderr | 2 +- tests/ui/consts/issue-16538.stderr | 2 +- tests/ui/consts/issue-32829-2.stderr | 4 +- tests/ui/consts/mir_check_nonconst.stderr | 2 +- tests/ui/issues/issue-25901.stderr | 2 +- tests/ui/issues/issue-7364.stderr | 2 +- tests/ui/lint/suspicious-double-ref-op.rs | 1 - tests/ui/lint/suspicious-double-ref-op.stderr | 10 ++--- .../issue-35813-postfix-after-cast.stderr | 2 +- .../nested-closure.rs | 2 +- .../ui/static/static-mut-not-constant.stderr | 2 +- .../static-vec-repeat-not-constant.stderr | 2 +- .../statics/check-values-constraints.stderr | 16 ++++---- 34 files changed, 60 insertions(+), 82 deletions(-) diff --git a/compiler/rustc_const_eval/src/check_consts/ops.rs b/compiler/rustc_const_eval/src/check_consts/ops.rs index 8406e0f487626..90b622cae6562 100644 --- a/compiler/rustc_const_eval/src/check_consts/ops.rs +++ b/compiler/rustc_const_eval/src/check_consts/ops.rs @@ -309,7 +309,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> { } if let ConstContext::Static(_) = ccx.const_kind() { - err.note("consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell"); + err.note("consider wrapping this expression in `std::sync::LazyLock::new(|| ...)`"); } err diff --git a/compiler/rustc_data_structures/src/lib.rs b/compiler/rustc_data_structures/src/lib.rs index 85b5a3cdb7c37..9781aae22eb3e 100644 --- a/compiler/rustc_data_structures/src/lib.rs +++ b/compiler/rustc_data_structures/src/lib.rs @@ -24,7 +24,6 @@ #![feature(extend_one)] #![feature(hash_raw_entry)] #![feature(hasher_prefixfree_extras)] -#![feature(lazy_cell)] #![feature(lint_reasons)] #![feature(macro_metavar_expr)] #![feature(map_try_insert)] diff --git a/compiler/rustc_error_messages/src/lib.rs b/compiler/rustc_error_messages/src/lib.rs index 2a8f422206409..08388c5a58ed8 100644 --- a/compiler/rustc_error_messages/src/lib.rs +++ b/compiler/rustc_error_messages/src/lib.rs @@ -1,6 +1,5 @@ #![doc(rust_logo)] #![feature(rustdoc_internals)] -#![feature(lazy_cell)] #![feature(rustc_attrs)] #![feature(type_alias_impl_trait)] #![allow(internal_features)] diff --git a/compiler/rustc_feature/src/lib.rs b/compiler/rustc_feature/src/lib.rs index 36ef8fe7816fe..9cbf836ec76f0 100644 --- a/compiler/rustc_feature/src/lib.rs +++ b/compiler/rustc_feature/src/lib.rs @@ -14,7 +14,6 @@ #![allow(internal_features)] #![feature(rustdoc_internals)] #![doc(rust_logo)] -#![feature(lazy_cell)] mod accepted; mod builtin_attrs; diff --git a/compiler/rustc_hir_analysis/src/lib.rs b/compiler/rustc_hir_analysis/src/lib.rs index d1e50e13894a3..8fe81851f9327 100644 --- a/compiler/rustc_hir_analysis/src/lib.rs +++ b/compiler/rustc_hir_analysis/src/lib.rs @@ -68,7 +68,6 @@ This API is completely unstable and subject to change. #![feature(iter_intersperse)] #![feature(let_chains)] #![feature(never_type)] -#![feature(lazy_cell)] #![feature(slice_partition_dedup)] #![feature(try_blocks)] diff --git a/compiler/rustc_interface/src/lib.rs b/compiler/rustc_interface/src/lib.rs index c1d460ddd0861..8b1d9b706cacb 100644 --- a/compiler/rustc_interface/src/lib.rs +++ b/compiler/rustc_interface/src/lib.rs @@ -1,5 +1,4 @@ #![feature(decl_macro)] -#![feature(lazy_cell)] #![feature(let_chains)] #![feature(thread_spawn_unchecked)] #![feature(try_blocks)] diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index 617fe99ef6a75..747b7292a1999 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -1316,10 +1316,8 @@ declare_lint! { /// * If you are trying to perform a one-time initialization of a global: /// * If the value can be computed at compile-time, consider using /// const-compatible values (see [Constant Evaluation]). - /// * For more complex single-initialization cases, consider using a - /// third-party crate, such as [`lazy_static`] or [`once_cell`]. - /// * If you are using the [nightly channel], consider the new - /// [`lazy`] module in the standard library. + /// * For more complex single-initialization cases, consider using + /// [`std::sync::LazyLock`]. /// * If you truly need a mutable global, consider using a [`static`], /// which has a variety of options: /// * Simple data types can be directly defined and mutated with an @@ -1334,9 +1332,7 @@ declare_lint! { /// [Constant Evaluation]: https://doc.rust-lang.org/reference/const_eval.html /// [`static`]: https://doc.rust-lang.org/reference/items/static-items.html /// [mutable `static`]: https://doc.rust-lang.org/reference/items/static-items.html#mutable-statics - /// [`lazy`]: https://doc.rust-lang.org/nightly/std/lazy/index.html - /// [`lazy_static`]: https://crates.io/crates/lazy_static - /// [`once_cell`]: https://crates.io/crates/once_cell + /// [`std::sync::LazyLock`]: https://doc.rust-lang.org/stable/std/sync/struct.LazyLock.html /// [`atomic`]: https://doc.rust-lang.org/std/sync/atomic/index.html /// [`Mutex`]: https://doc.rust-lang.org/std/sync/struct.Mutex.html pub CONST_ITEM_MUTATION, diff --git a/compiler/rustc_session/src/lib.rs b/compiler/rustc_session/src/lib.rs index ce866906e1e69..cb02fbdfee9ed 100644 --- a/compiler/rustc_session/src/lib.rs +++ b/compiler/rustc_session/src/lib.rs @@ -1,5 +1,4 @@ #![feature(let_chains)] -#![feature(lazy_cell)] #![feature(option_get_or_insert_default)] #![feature(rustc_attrs)] #![feature(map_many_mut)] diff --git a/library/core/src/cell.rs b/library/core/src/cell.rs index 4b491ffdafa70..ac026de95da12 100644 --- a/library/core/src/cell.rs +++ b/library/core/src/cell.rs @@ -245,7 +245,7 @@ use crate::ptr::{self, NonNull}; mod lazy; mod once; -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] pub use lazy::LazyCell; #[stable(feature = "once_cell", since = "1.70.0")] pub use once::OnceCell; diff --git a/library/core/src/cell/lazy.rs b/library/core/src/cell/lazy.rs index 1b213f6a2941b..47eab6fd0163c 100644 --- a/library/core/src/cell/lazy.rs +++ b/library/core/src/cell/lazy.rs @@ -18,8 +18,6 @@ enum State { /// # Examples /// /// ``` -/// #![feature(lazy_cell)] -/// /// use std::cell::LazyCell; /// /// let lazy: LazyCell = LazyCell::new(|| { @@ -36,7 +34,7 @@ enum State { /// // 92 /// // 92 /// ``` -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] pub struct LazyCell T> { state: UnsafeCell>, } @@ -47,8 +45,6 @@ impl T> LazyCell { /// # Examples /// /// ``` - /// #![feature(lazy_cell)] - /// /// use std::cell::LazyCell; /// /// let hello = "Hello, World!".to_string(); @@ -58,7 +54,8 @@ impl T> LazyCell { /// assert_eq!(&*lazy, "HELLO, WORLD!"); /// ``` #[inline] - #[unstable(feature = "lazy_cell", issue = "109736")] + #[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] pub const fn new(f: F) -> LazyCell { LazyCell { state: UnsafeCell::new(State::Uninit(f)) } } @@ -70,7 +67,6 @@ impl T> LazyCell { /// # Examples /// /// ``` - /// #![feature(lazy_cell)] /// #![feature(lazy_cell_consume)] /// /// use std::cell::LazyCell; @@ -99,8 +95,6 @@ impl T> LazyCell { /// # Examples /// /// ``` - /// #![feature(lazy_cell)] - /// /// use std::cell::LazyCell; /// /// let lazy = LazyCell::new(|| 92); @@ -109,7 +103,7 @@ impl T> LazyCell { /// assert_eq!(&*lazy, &92); /// ``` #[inline] - #[unstable(feature = "lazy_cell", issue = "109736")] + #[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] pub fn force(this: &LazyCell) -> &T { // SAFETY: // This invalidates any mutable references to the data. The resulting @@ -173,7 +167,7 @@ impl LazyCell { } } -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] impl T> Deref for LazyCell { type Target = T; #[inline] @@ -182,7 +176,7 @@ impl T> Deref for LazyCell { } } -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] impl Default for LazyCell { /// Creates a new lazy value using `Default` as the initializing function. #[inline] @@ -191,7 +185,7 @@ impl Default for LazyCell { } } -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] impl fmt::Debug for LazyCell { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { let mut d = f.debug_tuple("LazyCell"); diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs index 797108a8425de..e6828f6cb4ea6 100644 --- a/library/core/tests/lib.rs +++ b/library/core/tests/lib.rs @@ -96,7 +96,6 @@ #![feature(pointer_is_aligned_to)] #![feature(portable_simd)] #![feature(ptr_metadata)] -#![feature(lazy_cell)] #![feature(unsized_tuple_coercion)] #![feature(const_option)] #![feature(const_option_ext)] diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index 4a18db3d5a3fc..9d6576fa84117 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -395,7 +395,6 @@ #![feature(edition_panic)] #![feature(format_args_nl)] #![feature(get_many_mut)] -#![feature(lazy_cell)] #![feature(log_syntax)] #![feature(test)] #![feature(trace_macros)] diff --git a/library/std/src/sync/lazy_lock.rs b/library/std/src/sync/lazy_lock.rs index 27b59cfc8c24d..16d5dc30552fa 100644 --- a/library/std/src/sync/lazy_lock.rs +++ b/library/std/src/sync/lazy_lock.rs @@ -31,8 +31,6 @@ union Data { /// Initialize static variables with `LazyLock`. /// /// ``` -/// #![feature(lazy_cell)] -/// /// use std::collections::HashMap; /// /// use std::sync::LazyLock; @@ -61,8 +59,6 @@ union Data { /// ``` /// Initialize fields with `LazyLock`. /// ``` -/// #![feature(lazy_cell)] -/// /// use std::sync::LazyLock; /// /// #[derive(Debug)] @@ -76,8 +72,7 @@ union Data { /// println!("{}", *data.number); /// } /// ``` - -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] pub struct LazyLock T> { once: Once, data: UnsafeCell>, @@ -85,8 +80,21 @@ pub struct LazyLock T> { impl T> LazyLock { /// Creates a new lazy value with the given initializing function. + /// + /// # Examples + /// + /// ``` + /// use std::sync::LazyLock; + /// + /// let hello = "Hello, World!".to_string(); + /// + /// let lazy = LazyLock::new(|| hello.to_uppercase()); + /// + /// assert_eq!(&*lazy, "HELLO, WORLD!"); + /// ``` #[inline] - #[unstable(feature = "lazy_cell", issue = "109736")] + #[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] pub const fn new(f: F) -> LazyLock { LazyLock { once: Once::new(), data: UnsafeCell::new(Data { f: ManuallyDrop::new(f) }) } } @@ -107,7 +115,6 @@ impl T> LazyLock { /// # Examples /// /// ``` - /// #![feature(lazy_cell)] /// #![feature(lazy_cell_consume)] /// /// use std::sync::LazyLock; @@ -145,8 +152,6 @@ impl T> LazyLock { /// # Examples /// /// ``` - /// #![feature(lazy_cell)] - /// /// use std::sync::LazyLock; /// /// let lazy = LazyLock::new(|| 92); @@ -155,7 +160,7 @@ impl T> LazyLock { /// assert_eq!(&*lazy, &92); /// ``` #[inline] - #[unstable(feature = "lazy_cell", issue = "109736")] + #[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] pub fn force(this: &LazyLock) -> &T { this.once.call_once(|| { // SAFETY: `call_once` only runs this closure once, ever. @@ -191,7 +196,7 @@ impl LazyLock { } } -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] impl Drop for LazyLock { fn drop(&mut self) { match self.once.state() { @@ -204,7 +209,7 @@ impl Drop for LazyLock { } } -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] impl T> Deref for LazyLock { type Target = T; @@ -219,7 +224,7 @@ impl T> Deref for LazyLock { } } -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] impl Default for LazyLock { /// Creates a new lazy value using `Default` as the initializing function. #[inline] @@ -228,7 +233,7 @@ impl Default for LazyLock { } } -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] impl fmt::Debug for LazyLock { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { let mut d = f.debug_tuple("LazyLock"); @@ -242,13 +247,13 @@ impl fmt::Debug for LazyLock { // We never create a `&F` from a `&LazyLock` so it is fine // to not impl `Sync` for `F`. -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] unsafe impl Sync for LazyLock {} // auto-derived `Send` impl is OK. -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] impl RefUnwindSafe for LazyLock {} -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] impl UnwindSafe for LazyLock {} #[cfg(test)] diff --git a/library/std/src/sync/mod.rs b/library/std/src/sync/mod.rs index e8c35bd48a70b..fb7d601b09478 100644 --- a/library/std/src/sync/mod.rs +++ b/library/std/src/sync/mod.rs @@ -179,7 +179,7 @@ pub use self::rwlock::{MappedRwLockReadGuard, MappedRwLockWriteGuard}; #[stable(feature = "rust1", since = "1.0.0")] pub use self::rwlock::{RwLock, RwLockReadGuard, RwLockWriteGuard}; -#[unstable(feature = "lazy_cell", issue = "109736")] +#[stable(feature = "lazy_cell", since = "CURRENT_RUSTC_VERSION")] pub use self::lazy_lock::LazyLock; #[stable(feature = "once_cell", since = "1.70.0")] pub use self::once_lock::OnceLock; diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs index 0650afb90c7ea..55346c768b660 100644 --- a/src/librustdoc/lib.rs +++ b/src/librustdoc/lib.rs @@ -8,7 +8,6 @@ #![feature(if_let_guard)] #![feature(impl_trait_in_assoc_type)] #![feature(iter_intersperse)] -#![feature(lazy_cell)] #![feature(let_chains)] #![feature(never_type)] #![feature(round_char_boundary)] diff --git a/src/tools/clippy/clippy_dev/src/lib.rs b/src/tools/clippy/clippy_dev/src/lib.rs index 385191e0361b1..3aa43dbe23ed6 100644 --- a/src/tools/clippy/clippy_dev/src/lib.rs +++ b/src/tools/clippy/clippy_dev/src/lib.rs @@ -1,4 +1,3 @@ -#![feature(lazy_cell)] #![feature(let_chains)] #![feature(rustc_private)] #![cfg_attr(feature = "deny-warnings", deny(warnings))] diff --git a/src/tools/clippy/src/driver.rs b/src/tools/clippy/src/driver.rs index 9e42abbc9aa9e..f79da26964f37 100644 --- a/src/tools/clippy/src/driver.rs +++ b/src/tools/clippy/src/driver.rs @@ -2,7 +2,6 @@ #![allow(rustc::untranslatable_diagnostic)] #![feature(rustc_private)] #![feature(let_chains)] -#![feature(lazy_cell)] #![feature(lint_reasons)] #![cfg_attr(feature = "deny-warnings", deny(warnings))] // warn on lints, that are included in `rust-lang/rust`s bootstrap diff --git a/src/tools/clippy/tests/compile-test.rs b/src/tools/clippy/tests/compile-test.rs index b06a11702ec86..333a2ab585757 100644 --- a/src/tools/clippy/tests/compile-test.rs +++ b/src/tools/clippy/tests/compile-test.rs @@ -1,4 +1,3 @@ -#![feature(lazy_cell)] #![feature(is_sorted)] #![cfg_attr(feature = "deny-warnings", deny(warnings))] #![warn(rust_2018_idioms, unused_lifetimes)] diff --git a/src/tools/clippy/tests/dogfood.rs b/src/tools/clippy/tests/dogfood.rs index 3f16c180ea78d..36a7a651c4d28 100644 --- a/src/tools/clippy/tests/dogfood.rs +++ b/src/tools/clippy/tests/dogfood.rs @@ -3,7 +3,6 @@ //! //! See [Eating your own dog food](https://en.wikipedia.org/wiki/Eating_your_own_dog_food) for context -#![feature(lazy_cell)] #![cfg_attr(feature = "deny-warnings", deny(warnings))] #![warn(rust_2018_idioms, unused_lifetimes)] diff --git a/src/tools/clippy/tests/lint_message_convention.rs b/src/tools/clippy/tests/lint_message_convention.rs index 98019c7552767..6ce7e44474d81 100644 --- a/src/tools/clippy/tests/lint_message_convention.rs +++ b/src/tools/clippy/tests/lint_message_convention.rs @@ -1,4 +1,3 @@ -#![feature(lazy_cell)] #![cfg_attr(feature = "deny-warnings", deny(warnings))] #![warn(rust_2018_idioms, unused_lifetimes)] diff --git a/src/tools/clippy/tests/workspace.rs b/src/tools/clippy/tests/workspace.rs index 699ab2be199a8..19ccc7ae96070 100644 --- a/src/tools/clippy/tests/workspace.rs +++ b/src/tools/clippy/tests/workspace.rs @@ -1,5 +1,3 @@ -#![feature(lazy_cell)] - use std::path::PathBuf; use std::process::Command; use test_utils::{CARGO_CLIPPY_PATH, IS_RUSTC_TEST_SUITE}; diff --git a/tests/ui/borrowck/issue-64453.stderr b/tests/ui/borrowck/issue-64453.stderr index 0e4a8d42f6e84..e671817633be4 100644 --- a/tests/ui/borrowck/issue-64453.stderr +++ b/tests/ui/borrowck/issue-64453.stderr @@ -14,7 +14,7 @@ LL | static settings_dir: String = format!(""); | ^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` = note: this error originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0507]: cannot move out of static item `settings_dir` diff --git a/tests/ui/consts/issue-16538.stderr b/tests/ui/consts/issue-16538.stderr index 3981b4ada4913..c4f5364b4d784 100644 --- a/tests/ui/consts/issue-16538.stderr +++ b/tests/ui/consts/issue-16538.stderr @@ -5,7 +5,7 @@ LL | static foo: &Y::X = &*Y::foo(Y::x as *const Y::X); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` error[E0133]: dereference of raw pointer is unsafe and requires unsafe function or block --> $DIR/issue-16538.rs:11:22 diff --git a/tests/ui/consts/issue-32829-2.stderr b/tests/ui/consts/issue-32829-2.stderr index 0fec3581873eb..bd0b8c15b558d 100644 --- a/tests/ui/consts/issue-32829-2.stderr +++ b/tests/ui/consts/issue-32829-2.stderr @@ -13,7 +13,7 @@ LL | invalid(); | ^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` error[E0015]: cannot call non-const fn `invalid` in statics --> $DIR/issue-32829-2.rs:54:9 @@ -22,7 +22,7 @@ LL | invalid(); | ^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` error: aborting due to 3 previous errors diff --git a/tests/ui/consts/mir_check_nonconst.stderr b/tests/ui/consts/mir_check_nonconst.stderr index ea6a8b8ee4a59..95d64622ad7a4 100644 --- a/tests/ui/consts/mir_check_nonconst.stderr +++ b/tests/ui/consts/mir_check_nonconst.stderr @@ -5,7 +5,7 @@ LL | static foo: Foo = bar(); | ^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` error: aborting due to 1 previous error diff --git a/tests/ui/issues/issue-25901.stderr b/tests/ui/issues/issue-25901.stderr index 5c19abffa0292..3fedfd9641702 100644 --- a/tests/ui/issues/issue-25901.stderr +++ b/tests/ui/issues/issue-25901.stderr @@ -16,7 +16,7 @@ note: impl defined here, but it is not `const` LL | impl Deref for A { | ^^^^^^^^^^^^^^^^ = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` help: add `#![feature(const_trait_impl)]` to the crate attributes to enable | LL + #![feature(const_trait_impl)] diff --git a/tests/ui/issues/issue-7364.stderr b/tests/ui/issues/issue-7364.stderr index 3bf59a6d7114b..d5b6dde1f10e5 100644 --- a/tests/ui/issues/issue-7364.stderr +++ b/tests/ui/issues/issue-7364.stderr @@ -18,7 +18,7 @@ LL | static boxed: Box> = Box::new(RefCell::new(0)); | ^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` error: aborting due to 2 previous errors diff --git a/tests/ui/lint/suspicious-double-ref-op.rs b/tests/ui/lint/suspicious-double-ref-op.rs index bc8c23c7b895a..5aeb81dbd65aa 100644 --- a/tests/ui/lint/suspicious-double-ref-op.rs +++ b/tests/ui/lint/suspicious-double-ref-op.rs @@ -1,4 +1,3 @@ -#![feature(lazy_cell)] #![deny(suspicious_double_ref_op, noop_method_call)] use std::borrow::Borrow; diff --git a/tests/ui/lint/suspicious-double-ref-op.stderr b/tests/ui/lint/suspicious-double-ref-op.stderr index f5a71d40fc132..c956843c50780 100644 --- a/tests/ui/lint/suspicious-double-ref-op.stderr +++ b/tests/ui/lint/suspicious-double-ref-op.stderr @@ -1,29 +1,29 @@ error: using `.clone()` on a double reference, which returns `&Vec` instead of cloning the inner type - --> $DIR/suspicious-double-ref-op.rs:15:23 + --> $DIR/suspicious-double-ref-op.rs:14:23 | LL | let z: &Vec<_> = y.clone(); | ^^^^^^^^ | note: the lint level is defined here - --> $DIR/suspicious-double-ref-op.rs:2:9 + --> $DIR/suspicious-double-ref-op.rs:1:9 | LL | #![deny(suspicious_double_ref_op, noop_method_call)] | ^^^^^^^^^^^^^^^^^^^^^^^^ error: using `.clone()` on a double reference, which returns `&CloneType` instead of cloning the inner type - --> $DIR/suspicious-double-ref-op.rs:33:63 + --> $DIR/suspicious-double-ref-op.rs:32:63 | LL | let clone_type_ref_clone: &CloneType = clone_type_ref.clone(); | ^^^^^^^^ error: using `.deref()` on a double reference, which returns `&PlainType` instead of dereferencing the inner type - --> $DIR/suspicious-double-ref-op.rs:37:63 + --> $DIR/suspicious-double-ref-op.rs:36:63 | LL | let non_deref_type_deref: &PlainType = non_deref_type.deref(); | ^^^^^^^^ error: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type - --> $DIR/suspicious-double-ref-op.rs:41:44 + --> $DIR/suspicious-double-ref-op.rs:40:44 | LL | let _v: Vec<&str> = xs.iter().map(|x| x.clone()).collect(); // could use `*x` instead | ^^^^^^^^ diff --git a/tests/ui/parser/issues/issue-35813-postfix-after-cast.stderr b/tests/ui/parser/issues/issue-35813-postfix-after-cast.stderr index 7b896ce14266a..66b57c772d546 100644 --- a/tests/ui/parser/issues/issue-35813-postfix-after-cast.stderr +++ b/tests/ui/parser/issues/issue-35813-postfix-after-cast.stderr @@ -352,7 +352,7 @@ LL | static bar: &[i32] = &(&[1,2,3] as &[i32][0..1]); | ^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` help: add `#![feature(const_trait_impl)]` to the crate attributes to enable | LL + #![feature(const_trait_impl)] diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/nested-closure.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/nested-closure.rs index d43fabcedec55..7bd372c169521 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/nested-closure.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/nested-closure.rs @@ -1,6 +1,6 @@ //@ check-pass -#![feature(const_trait_impl, lazy_cell)] +#![feature(const_trait_impl)] use std::sync::LazyLock; diff --git a/tests/ui/static/static-mut-not-constant.stderr b/tests/ui/static/static-mut-not-constant.stderr index d125bec594359..46dc175cb2982 100644 --- a/tests/ui/static/static-mut-not-constant.stderr +++ b/tests/ui/static/static-mut-not-constant.stderr @@ -5,7 +5,7 @@ LL | static mut a: Box = Box::new(3); | ^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` error: aborting due to 1 previous error diff --git a/tests/ui/static/static-vec-repeat-not-constant.stderr b/tests/ui/static/static-vec-repeat-not-constant.stderr index db0c7eb8d35f1..a3b930323d5b2 100644 --- a/tests/ui/static/static-vec-repeat-not-constant.stderr +++ b/tests/ui/static/static-vec-repeat-not-constant.stderr @@ -5,7 +5,7 @@ LL | static a: [isize; 2] = [foo(); 2]; | ^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` error: aborting due to 1 previous error diff --git a/tests/ui/statics/check-values-constraints.stderr b/tests/ui/statics/check-values-constraints.stderr index 45a699f575fbd..24763c175fc89 100644 --- a/tests/ui/statics/check-values-constraints.stderr +++ b/tests/ui/statics/check-values-constraints.stderr @@ -26,7 +26,7 @@ LL | static STATIC11: Vec = vec![MyOwned]; | ^^^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0015]: cannot call non-const fn `::to_string` in statics @@ -36,7 +36,7 @@ LL | field2: SafeEnum::Variant4("str".to_string()), | ^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` help: add `#![feature(const_trait_impl)]` to the crate attributes to enable | LL + #![feature(const_trait_impl)] @@ -57,7 +57,7 @@ LL | vec![MyOwned], | ^^^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0010]: allocations are not allowed in statics @@ -75,7 +75,7 @@ LL | vec![MyOwned], | ^^^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0010]: allocations are not allowed in statics @@ -93,7 +93,7 @@ LL | &vec![MyOwned], | ^^^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0010]: allocations are not allowed in statics @@ -111,7 +111,7 @@ LL | &vec![MyOwned], | ^^^^^^^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0010]: allocations are not allowed in statics @@ -129,7 +129,7 @@ LL | static STATIC19: Vec = vec![3]; | ^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0010]: allocations are not allowed in statics @@ -147,7 +147,7 @@ LL | static x: Vec = vec![3]; | ^^^^^^^ | = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell + = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0507]: cannot move out of static item `x`