vendor/once_cell/CHANGELOG.md

   1 # Changelog
   2
   3 ## Unreleased
   4
   5 -
   6
   7 ## 1.12.0
   8
   9 - Add `OnceCell::wait`, a blocking variant of `get`.
  10
  11 ## 1.11.0
  12
  13 - Add `OnceCell::with_value` to create initialized `OnceCell` in `const` context.
  14 - Improve `Clone` implementation for `OnceCell`.
  15 - Rewrite `parking_lot` version on top of `parking_lot_core`, for even smaller cells!
  16
  17 ## 1.10.0
  18
  19 - upgrade `parking_lot` to `0.12.0` (note that this bumps MSRV with `parking_lot` feature enabled to `1.49.0`).
  20
  21 ## 1.9.0
  22
  23 - Added an `atomic-polyfill` optional dependency to compile `race` on platforms without atomics
  24
  25 ## 1.8.0
  26
  27 - Add `try_insert` API -- a version of `set` that returns a reference.
  28
  29 ## 1.7.2
  30
  31 - Improve code size when using parking_lot feature.
  32
  33 ## 1.7.1
  34
  35 - Fix `race::OnceBox<T>` to also impl `Default` even if `T` doesn't impl `Default`.
  36
  37 ## 1.7.0
  38
  39 - Hide the `race` module behind (default) `race` feature.
  40   Turns out that adding `race` by default was a breaking change on some platforms without atomics.
  41   In this release, we make the module opt-out.
  42   Technically, this is a breaking change for those who use `race` with `no_default_features`.
  43   Given that the `race` module itself only several days old, the breakage is deemed acceptable.
  44
  45 ## 1.6.0
  46
  47 - Add `Lazy::into_value`
  48 - Stabilize `once_cell::race` module for "first one wins" no_std-compatible initialization flavor.
  49 - Migrate from deprecated `compare_and_swap` to `compare_exchange`.
  50
  51 ## 1.5.2
  52
  53 - `OnceBox` API uses `Box<T>`.
  54   This a breaking change to unstable API.
  55
  56 ## 1.5.1
  57
  58 - MSRV is increased to `1.36.0`.
  59 - document `once_cell::race` module.
  60 - introduce `alloc` feature for `OnceBox`.
  61 - fix `OnceBox::set`.
  62
  63 ## 1.5.0
  64
  65 - add new `once_cell::race` module for "first one wins" no_std-compatible initialization flavor.
  66   The API is provisional, subject to change and is gated by the `unstable` cargo feature.
  67
  68 ## 1.4.1
  69
  70 - upgrade `parking_lot` to `0.11.0`
  71 - make `sync::OnceCell<T>` pass https://doc.rust-lang.org/nomicon/dropck.html#an-escape-hatch[dropck] with `parking_lot` feature enabled.
  72   This fixes a (minor) semver-incompatible changed introduced in `1.4.0`
  73
  74 ## 1.4.0
  75
  76 - upgrade `parking_lot` to `0.10` (note that this bumps MSRV with `parking_lot` feature enabled to `1.36.0`).
  77 - add `OnceCell::take`.
  78 - upgrade crossbeam utils (private dependency) to `0.7`.
  79
  80 ## 1.3.1
  81
  82 - remove unnecessary `F: fmt::Debug` bound from `impl fmt::Debug for Lazy<T, F>`.
  83
  84 ## 1.3.0
  85
  86 - `Lazy<T>` now implements `DerefMut`.
  87 - update implementation according to the latest changes in `std`.
  88
  89 ## 1.2.0
  90
  91 - add `sync::OnceCell::get_unchecked`.
  92
  93 ## 1.1.0
  94
  95 - implement `Default` for `Lazy`: it creates an empty `Lazy<T>` which is initialized with `T::default` on first access.
  96 - add `OnceCell::get_mut`.
  97
  98 ## 1.0.2
  99
 100 - actually add `#![no_std]` attribute if std feature is not enabled.
 101
 102 ## 1.0.1
 103
 104 - fix unsoundness in `Lazy<T>` if the initializing function panics. Thanks [@xfix](https://github.com/xfix)!
 105 - implement `RefUnwindSafe` for `Lazy`.
 106 - share more code between `std` and `parking_lot` implementations.
 107 - add F.A.Q section to the docs.
 108
 109 ## 1.0.0
 110
 111 - remove `parking_lot` from the list of default features.
 112 - add `std` default feature. Without `std`, only `unsync` module is supported.
 113 - implement `Eq` for `OnceCell`.
 114 - fix wrong `Sync` bound on `sync::Lazy`.
 115 - run the whole test suite with miri.
 116
 117 ## 0.2.7
 118
 119 - New implementation of `sync::OnceCell` if `parking_lot` feature is disabled.
 120   It now employs a hand-rolled variant of `std::sync::Once`.
 121 - `sync::OnceCell::get_or_try_init` works without `parking_lot` as well!
 122 - document the effects of `parking_lot` feature: same performance but smaller types.
 123
 124 ## 0.2.6
 125
 126 - Updated `Lazy`'s `Deref` impl to requires only `FnOnce` instead of `Fn`
 127
 128 ## 0.2.5
 129
 130 - `Lazy` requires only `FnOnce` instead of `Fn`
 131
 132 ## 0.2.4
 133
 134 - nicer `fmt::Debug` implementation
 135
 136 ## 0.2.3
 137
 138 - update `parking_lot` to `0.9.0`
 139 - fix stacked borrows violation in `unsync::OnceCell::get`
 140 - implement `Clone` for `sync::OnceCell<T> where T: Clone`
 141
 142 ## 0.2.2
 143
 144 - add `OnceCell::into_inner` which consumes a cell and returns an option
 145
 146 ## 0.2.1
 147
 148 - implement `sync::OnceCell::get_or_try_init` if `parking_lot` feature is enabled
 149 - switch internal `unsafe` implementation of `sync::OnceCell` from `Once` to `Mutex`
 150 - `sync::OnceCell::get_or_init` is twice as fast if cell is already initialized
 151 - implement `std::panic::RefUnwindSafe` and `std::panic::UnwindSafe` for `OnceCell`
 152 - better document behavior around panics
 153
 154 ## 0.2.0
 155
 156 - MSRV is now 1.31.1
 157 - `Lazy::new` and `OnceCell::new` are now const-fns
 158 - `unsync_lazy` and `sync_lazy` macros are removed
 159
 160 ## 0.1.8
 161
 162 - update crossbeam-utils to 0.6
 163 - enable bors-ng
 164
 165 ## 0.1.7
 166
 167 - cells implement `PartialEq` and `From`
 168 - MSRV is down to 1.24.1
 169 - update `parking_lot` to `0.7.1`
 170
 171 ## 0.1.6
 172
 173 - `unsync::OnceCell<T>` is `Clone` if `T` is `Clone`.
 174
 175 ## 0.1.5
 176
 177 - No changelog until this point :(