https://github.com/rust-lang/rust http://git.dreamy.place/mirrors/rust/atom?h=1.65.0 2022-10-27T14:53:42+00:00 2022-10-27T14:53:42+00:00 Michael Goulet michael@errs.io 2022-10-27T14:53:42+00:00 urn:sha1:85dee2b354cf06ec24b00e61fc70cf88d27b1cd9 This reverts commit 970184528718d7c10579cac7b7e7e66ef2e2a3f5. 2022-09-16T11:07:18+00:00 Guillaume Gomez guillaume1.gomez@gmail.com 2022-09-16T11:07:18+00:00 urn:sha1:9a72ded562b2c8b78478550d4df09d1499a3dae1 Slight vertical formatting 2022-09-15T17:09:26+00:00 yukang moorekang@gmail.com 2022-09-15T17:09:26+00:00 urn:sha1:4bf7d2ca913179e3d4c71871a112820624c1e379 2022-09-15T15:51:43+00:00 Rageking8 tomleetyt@gmail.com 2022-09-15T15:51:43+00:00 urn:sha1:6d7beafc87e7cd8806987c5203e52bc3b8c458fa 2022-09-15T08:15:38+00:00 yukang moorekang@gmail.com 2022-09-15T07:18:23+00:00 urn:sha1:98e20c097cbb402ee2c6f4056fe8b4acca9679f9 2022-09-14T20:52:18+00:00 bors bors@rust-lang.org 2022-09-14T20:52:18+00:00 urn:sha1:750bd1a7ff3e010611b97ee75d30b7cbf5f3a03c make `mk_attr_id` part of `ParseSess` Updates #48685 The current `mk_attr_id` uses the `AtomicU32` type, which is not very efficient and adds a lot of lock contention in a parallel environment. This PR refers to the task list in #48685, uses `mk_attr_id` as a method of the `AttrIdGenerator` struct, and adds a new field `attr_id_generator` to `ParseSess`. `AttrIdGenerator` uses the `WorkerLocal`, which has two advantages: 1. `Cell` is more efficient than `AtomicU32`, and does not increase any lock contention. 2. We put the index of the work thread in the first few bits of the generated `AttrId`, so that the `AttrId` generated in different threads can be easily guaranteed to be unique. cc `@cjgillot` 2022-09-14T18:10:51+00:00 bors bors@rust-lang.org 2022-09-14T18:10:51+00:00 urn:sha1:6153d3cbe6abc74fb37e4ebe48cc825484fd6bbf Initial implementation of dyn* This PR adds extremely basic and incomplete support for [dyn*](https://smallcultfollowing.com/babysteps//blog/2022/03/29/dyn-can-we-make-dyn-sized/). The goal is to get something in tree behind a flag to make collaboration easier, and also to make sure the implementation so far is not unreasonable. This PR does quite a few things: * Introduce `dyn_star` feature flag * Adds parsing for `dyn* Trait` types * Defines `dyn* Trait` as a sized type * Adds support for explicit casts, like `42usize as dyn* Debug` * Including const evaluation of such casts * Adds codegen for drop glue so things are cleaned up properly when a `dyn* Trait` object goes out of scope * Adds codegen for method calls, at least for methods that take `&self` Quite a bit is still missing, but this gives us a starting point. Note that this is never intended to become stable surface syntax for Rust, but rather `dyn*` is planned to be used as an implementation detail for async functions in dyn traits. Joint work with `@nikomatsakis` and `@compiler-errors.` r? `@bjorn3` 2022-09-14T00:49:10+00:00 SparrowLii liyuan179@huawei.com 2022-09-02T08:29:40+00:00 urn:sha1:1a3ecbdb6a4c9eeced6e9a7ece9f5733548d531b 2022-09-13T21:50:12+00:00 Eric Holk ericholk@microsoft.com 2022-08-30T19:44:00+00:00 urn:sha1:cf04547b0b793b55f1255142dc07d3c8437f6815 2022-09-12T23:55:55+00:00 Eric Holk ericholk@microsoft.com 2022-04-08T01:06:53+00:00 urn:sha1:eff35e59c698df379806add4c9f2c1d8d3fe55ca The primary purpose of this commit is to introduce the dyn_star flag so we can begin experimenting with implementation. In order to have something to do in the feature gate test, we also add parser support for `dyn* Trait` objects. These are currently treated just like `dyn Trait` objects, but this will change in the future. Note that for now `dyn* Trait` is experimental syntax to enable implementing some of the machinery needed for async fn in dyn traits without fully supporting the feature.