Compute data layout of types
cc #4091
Things that aren't working:
* Closures
* Generators (so no support for `Future` I think)
* Opaque types
* Type alias and associated types which may need normalization
Things that show wrong result:
* ~Enums with explicit discriminant~
* SIMD types
* ~`NonZero*` and similar standard library items which control layout with special attributes~
At the user level, I didn't put much work, since I wasn't confident about what is the best way to present this information. Currently it shows size and align for ADTs, and size, align, offset for struct fields, in the hover, similar to clangd. I used it some days and I feel I liked it, but we may consider it too noisy and move it to an assist or command.
Support builtin derive macro helper attributes
Closes#13244
It's a bit wasteful for `Macro2Data` to have `helpers` field currently just for `Default` derive macro, but I tend to think it's okay for the time being given how rare macro2's are used.
Update to Chalk 88
This Chalk release introduces fuel for the recursive solver ([chalk#774](https://github.com/rust-lang/chalk/pull/774)).
I'm not sure how often it calls `should_continue` compared to the other solver, so we might want to increase `CHALK_SOLVER_FUEL`, the current default value of 100 might be too low.
This should fix a lot of hangs and crashes, for example this solves the hang in #12897.
The old value was for the old chalk-engine solver, nowadays the newer chalk-recursive solver is used.
The new solver currently uses fuel a bit more quickly, so a higher value is needed.
Running analysis-stats showed that a value of 100 increases the amount of unknown types,
while for a value of 1000 it's staying mostly the same.
Support `rustc_has_incoherent_inherent_impls`
Fixes us not resolving `<dyn Error>::downcast` now that `Error` moved to core, while that assoc function is declared in `alloc`.
Handle raw identifiers in proc macro server
Fixes#13706
When proc macros create `proc_macro::Ident`s, they pass an identifier text without "r#" prefix and a flag `is_raw` to proc macro server. Our `tt::Ident` currently stores the text *with* "r#" so we need to adjust them somewhere.
Rather than following rustc and adding `is_raw` field to our `tt::Ident`, I opted for adjusting the representation of identifiers in proc macro server, because we don't need the field outside it.
It's hard to write regression test for this, but at least I:
- ran `cargo +nightly t --features sysroot-abi` and all the tests passed
- built proc macro server with `cargo +nightly b -r --bin rust-analyzer-proc-macro-srv --features sysroot-abi` and made sure #13706 resolved
- For the record, the nightly versions used are `rustc 1.67.0-nightly (32e613bba 2022-12-02)` and `cargo 1.67.0-nightly (e027c4b5d 2022-11-25)`.
Add `move_const_to_impl` assist
Closes#13277
For the initial implementation, this assist:
- only applies to inherent impl. Much as we can *technically* provide this assist for default impl in trait definitions, it'd be complicated to get it right.
- may break code when the const's name collides with an item of a trait the self type implements.
Comments in the code explain those caveats in a bit more detail.
Fix the case where if a user types `&&42.o`, snippet completion
was still applying &&Ok(42). Note this was fixed previously
on `&&42.` but this still remained a problem for this case
Don't show runnable code lenses in libraries outside of the workspace
Addresses #13664. For now I'm just disabling runnable code lenses since the ones that display the number of references and implementations do work correctly with external code.
Also made a tiny TypeScript change to use the typed `sendNotification` overload.
fix: check tail expressions more precisely in `extract_function`
Fixes#13620
When extracting expressions with control flows into a function, we can avoid wrapping tail expressions in `Option` or `Result` when they are also tail expressions of the container we're extracting from (see #7840, #9773). This is controlled by `ContainerInfo::is_in_tail`, but we've been computing it by checking if the tail expression of the range to extract is contained in the container's syntactically last expression, which may be a block that contains both tail and non-tail expressions (e.g. in #13620, the range to be extracted is not a tail expression but we set the flag to true).
This PR tries to compute the flag as precise as possible by utilizing `for_each_tail_expr()` (and also moves the flag to `Function` struct as it's more of a property of the function to be extracted than of the container).
