internal: use `Cast::cast()` instead of explicit interning
I firmly believe that we should generally use `cast()` instead of interning `GenericArgData` to construct `GenericArg` because it's less verbose and more readable.
Display fully qualified associated types correctly
Currently they are formatted in the internal `Trait<Self = Type>::Assoc` forms where `hir_ty::TypeRef` is formatted, like hover.
There is no test of `TypeRef::hir_fmt` in crate `hir-ty` (verified by replacing it with a `panic!()`), most tests are about inference and printing the real `Ty` instead of `TypeRef`. So I added the test in `ide::hover`.
Support doc links that resolve to fields
Fixes#15331
Also removes `Resolver::resolve_module_path_in_trait_assoc_items()` and reimplements it in hir with other `Resolver` methods to decouple things a bit.
internal: convert unwrap to except and add a debug log
Remove an unsafe unwrap that can cause crashes if the value is a `SendError`.
This is my first PR on this repo, please let me know if there is anything I can improve or details I can provide.
Handle `#[cfg]`s on generic parameters
Records attributes on generic parameters in the item tree and filters out generic parameters disabled by `#[cfg]`s in `generic_params_query`.
Closes#11756
Don't provide `generate_default_from_new` when impl self ty is missing
Also don't provide the assist when the `Default` trait can't be found.
Part of #15398
internal: Turn unresolved proc macro expansions into missing expressions
Reduces the amount of type related errors one gets when proc macro expansion is disabled.
fix: Remove unwraps from "Generate delegate trait"
Fixes#15388
This is untested and purely mechanical, maybe some of those `unwrap`s actually made sense, but it probably doesn't hurt to avoid them.
Use the warning color when rust-analyzer is stopped
If the rust-analyzer server isn't running, we can't do much. Treat this state as a warning color, so it's more obvious.
