11444: feat: Fix up syntax errors in attribute macro inputs to make completion work more often r=flodiebold a=flodiebold
This implements the "fix up syntax nodes" workaround mentioned in #11014. It isn't much more than a proof of concept; I have only implemented a few cases, but it already helps quite a bit.
Some notes:
- I'm not super happy about how much the fixup procedure needs to interact with the syntax node -> token tree conversion code (e.g. needing to share the token map). This could maybe be simplified with some refactoring of that code.
- It would maybe be nice to have the fixup procedure reuse or share information with the parser, though I'm not really sure how much that would actually help.
Co-authored-by: Florian Diebold <flodiebold@gmail.com>
In code like this:
```rust
impl<T> Option<T> {
fn as_deref(&self) -> T::Target where T: Deref {}
}
```
when trying to resolve the associated type `T::Target`, we were only
looking at the bounds on the impl (where the type parameter is defined),
but the method can add additional bounds that can also be used to refer
to associated types. Hence, when resolving such an associated type, it's
not enough to just know the type parameter T, we also need to know
exactly where we are currently.
This fixes#11364 (beta apparently switched some bounds around).
11218: fix: Correct has_ref detection, avoiding duplicate &mut insertion on parameter completion r=Veykril a=weirane
The original code fails to detect there's a ref in scenarios such as `&mut s` and `& s` because `WHITESPACE` and `IDENT` got reversed.
Closes#11199.
Co-authored-by: Wang Ruochen <wrc@ruo-chen.wang>
11201: fix: Fix completions not considering ancestor items for attribute search r=Veykril a=Veykril
Turns out we never filled the `CompletionContext` with the attribute expansion of attributed impls and traits when typing in the assoc items, as we were only considering the assoc item to have an attribute to expand.
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
- insert commas around when necessary
- only suggest `self` completions when param list is empty
- stop suggesting completions for identifiers which are already on the param list
