## Why
Due to the usage of `&'alloc mut T` in `oxc_allocator::Box`, and
`bumpalo::collections::Vec` in `oxc_allocator::Vec`, ast types are
currently invariant over their allocator lifetime `'a`. This prevents
`ouroboros` from generating `borrow_*` on ast type fields, leading to
the unfriendly `with_*` api:
c250b288ef/crates/oxc_parser/examples/multi-thread.rs (L82-L84)
## How
- For `oxc_allocator::Vec`, switch to `allocator_api2::vec::Vec`, which
has a covariant relationship with the allocator lifetime.
- For `oxc_allocator::Box`, use `std::ptr::NonNull` which is
specifically designed to be covariant. I don't use
`allocator_api2::boxed::Box` because it holds the allocator for
dropping, so the size is bigger.
## Downside
Now that `oxc_allocator::Box` uses the unsafe `NonNull`. It has to be a
private field to be safe. This make it impossible to do `Box(....)`
pattern matching.
Should be merged after #2829, Tried a few times to get it done with
graphite stacking but found no success. I guess it either doesn't work
with forks or It is just a skill issue since I'm not familiar with it.
closes: #2829closes: #2830
---------
Co-authored-by: Dmytro Maretskyi <maretskii@gmail.com>
* move `visit` and `visit_mut` modules to a super module called `visit`
* add `walk_mut` module containing walk functions
* update `enter_node` and `leave_node` events to not pass a reference in the `VisitMut` trait
* add `AstType`, a non-referencing version of `AstKind` to use with `VisitMut` trait
* update the `VisitMut` trait's usages.
Speed up lexing JSX identifier continuations (i.e. after `-`), by
searching for end of identifier byte-by-byte.
Change does not register on benchmarks, only because benchmarks don't
contain any `<Foo-Bar />` identifiers, so don't exercise this code path.
This PR merges the previous confusing features `serde` and `wasm` into a
single `serialize` feature.
We'll eventually do serialize + type information for both wasm and napi
targets.
`oxc_macros` is removed from `oxc_ast`'s dependency because it requires
`syn` and friends, which goes against our policy ["Third-party
dependencies should be
minimal."](https://oxc-project.github.io/docs/contribute/rules.html#development-policy)
This is one point where Babel and TSESLint diverge. For linter purposes
TSESLint structure makes more sense and that the reason of
https://github.com/typescript-eslint/typescript-eslint/issues/4130
The remaining `is_export` was creating redundant information and made
prettier (and the WIP oxc/prettier) print the AST of `export import X =
Y` as `export export import X = Y`.
Preparatory step for #2620.
This PR purely changes names of types and methods:
* `CompactString` -> `CompactStr`
* `Atom::to_compact_string` -> `to_compact_str`
* `Atom::into_compact_string` -> `into_compact_str`
Have split this into a separate PR as the diff is large, but it does absolutely nothing but renaming (I've checked the whole diff twice, so feel free not to check it again!). This should make it easier to see the content of the substantive change in #2620.
Implements
https://github.com/typescript-eslint/typescript-eslint/issues/2998
The copy of props feels wrong, but could not get it working otherwise
with the box and borrow things 😅
Also I found that TSImportType was missing some entries for visitors and
codegen.
In the case of codegen I'm not really understand the need as all the
types seems to be dismissed?
