rust/compiler/rustc_data_structures/src/sync/lock.rs, branch beta

remove allow(dead_code) leftovers from serial/parallel compiler

2025-06-22T10:05:09+00:00

Delete the `cfg(not(parallel))` serial compiler

2024-11-12T13:38:58+00:00

Since it's inception a long time ago, the parallel compiler and its cfgs have been a maintenance burden. This was a necessary evil the allow iteration while not degrading performance because of synchronization overhead. But this time is over. Thanks to the amazing work by the parallel working group (and the dyn sync crimes), the parallel compiler has now been fast enough to be shipped by default in nightly for quite a while now. Stable and beta have still been on the serial compiler, because they can't use `-Zthreads` anyways. But this is quite suboptimal: - the maintenance burden still sucks - we're not testing the serial compiler in nightly Because of these reasons, it's time to end it. The serial compiler has served us well in the years since it was split from the parallel one, but it's over now. Let the knight slay one head of the two-headed dragon!

Reformat using the new identifier sorting from rustfmt

2024-09-22T23:11:29+00:00

Reformat `use` declarations.

2024-07-28T22:26:52+00:00

The previous commit updated `rustfmt.toml` appropriately. This commit is the outcome of running `x fmt --all` with the new formatting options.

Apply x clippy --fix and x fmt

2024-05-30T01:51:27+00:00

Workaround for rustdoc bug in new beta

2024-03-20T12:49:13+00:00

Filed #122758 to track a proper fix, but this seems to solve the problem in the meantime and is probably OK in terms of impact on (internal) doc quality.

Fix some typos

2023-11-14T15:06:50+00:00

Signed-off-by: cui fliter

Remove the `LockMode` enum and `dispatch`

2023-09-08T08:15:12+00:00

Refactor `Lock` implementation

2023-09-08T06:48:44+00:00

Add optimized lock methods for `Sharded`

2023-09-08T06:48:44+00:00