Adds support for .await under the existing async_await feature gate.
Moves macro-like await! syntax to the await_macro feature gate.
Removes support for `await` as a non-keyword under the `async_await`
feature.
HirIdification: almost there
The next iteration of HirIdification (#57578).
Replaces a bunch of `NodeId` method calls (mostly `as_local_node_id`) with `HirId` ones.
Removes `NodeId` from:
- [x] `PathSegment`
- [x] `PatKind`
- [x] `Destination` (replaces it with `HirId`)
In addition this PR also removes `Visitor::visit_def_mention`, which doesn't seem to be doing anything.
Create a derive macro for HashStable and allow proc macros in rustc
A combination of https://github.com/rust-lang/rust/pull/56864 and https://github.com/rust-lang/rust/pull/56795. There were complications with using `serde_derive` as rustc doesn't know which crate to use for the host when there is a serde_derive in the sysroot and cargo passes another on the command line built from crates.io.
r? @eddyb (for proc macro changes) @alexcrichton (for rustbuild changes) @michaelwoerister (for the macro itself)
[NLL] Type check operations with pointer types
It seems these were forgotten about. Moving to `Rvalue::AddressOf` simplifies the coercions from references, but I want this to be fixed as soon as possible.
r? @pnkfelix
Remove NodeId from more HIR nodes
The next iteration of HirIdification (#57578).
Removes `NodeId` from:
- [x] `Stmt`
- [x] `Local`
- [x] `Field`
- [x] `AnonConst`
- [x] `TraitItem`
- [x] `ImplItem`
- [x] `TypeBinding`
- [x] `Arg`
- [x] `TraitRef`
- [x] `VisibilityKind`
It will most probably break clippy again; I'd appreciate a **delegate** again if/when it is good to go so I can attach a clippy fix later.
r? @Zoxc
Function signatures with the `variadic` member set are actually
C-variadic functions. Make this a little more explicit by renaming the
`variadic` boolean value, `c_variadic`.
Use normal mutable borrows in matches
`ref mut` borrows are currently two-phase with NLL enabled. This changes them to be proper mutable borrows. To accommodate this, first the position of fake borrows is changed:
```text
[ 1. Pre-match ]
|
[ (old create fake borrows) ]
[ 2. Discriminant testing -- check discriminants ] <-+
| |
| (once a specific arm is chosen) |
| |
[ (old read fake borrows) ] |
[ 3. Create "guard bindings" for arm ] |
[ (create fake borrows) ] |
| |
[ 4. Execute guard code ] |
[ (read fake borrows) ] --(guard is false)-----------+
|
| (guard results in true)
|
[ 5. Create real bindings and execute arm ]
|
[ Exit match ]
```
The following additional changes are made to accommodate `ref mut` bindings:
* We no longer create fake `Shared` borrows. These borrows are no longer needed for soundness, just to avoid some arguably strange cases.
* `Shallow` borrows no longer conflict with existing borrows, avoiding conflicting access between the guard borrow access and the `ref mut` borrow.
There is some further clean up done in this PR:
* Avoid the "later used here" note for Shallow borrows (since it's not relevant with the message provided)
* Make any use of a two-phase borrow activate it.
* Simplify the cleanup_post_borrowck passes into a single pass.
cc #56254
r? @nikomatsakis
