6683: Emit macro diagnostics when lowering bodies r=matklad a=jonas-schievink
Changes `Expander::enter_expand` to return an `ExpandResult`, and adds any contained errors to the body diagnostic list.
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
6680: Fix use merging not using the first path segment r=Veykril a=Veykril
Finally figured out why nested imports don't properly merge in some cases
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
6665: Support self in reference search r=matklad a=Veykril
The approach here is simply checking the descendants of the function body for `PathExpr` then checking whether it only contains a single `self` `PathSegment`, this is to prevent us from picking up `self` tokens from local `UseTree`s.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
6599: Add attribute highlight modifier to all tokens inside attributes r=matklad a=Veykril
This has the side effect that we also emit `attribute.attribute` highlights now, as in, the tokens that get the attribute semantic type also get the attribute modifier. I personally don't think it's really a problem but maybe it is to some? It's just that it was really simple to implement it this way, which is why I just went this route for now.
Fixes#6536
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
6601: add let and letm postfix to turn expressions into variables r=matklad a=bnjjj
Partially resolve#6426
Co-authored-by: Benjamin Coenen <5719034+bnjjj@users.noreply.github.com>
6666: Support 'go to definition' for self r=jonas-schievink a=Veykril
Also reverts #6660, instead of showing the type it now works like it does for names by returning the declaration we are already on. This for example enables VSCode to show all references(#6665) when executing `go to definition` on the declaration.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
6664: Show type of self param on hover r=jonas-schievink a=Veykril
Show the type of `self` when hovering the token in a `SelfParam`.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
6645: Publish diagnostics for macro expansion errors r=matklad a=jonas-schievink
This adds 2 new diagnostics, emitted during name resolution:
* `unresolved-proc-macro`, a weak warning that is emitted when a proc macro is supposed to be expanded, but was not provided by the build system. This usually means that proc macro support is turned off, but may also indicate setup issues when using rust-project.json. Being a weak warning, this should help set expectations when users see it, while not being too obstructive. We do not yet emit this for attribute macros though, just custom derives and `!` macros.
* `macro-error`, which is emitted when any macro (procedural or `macro_rules!`) fails to expand due to some error. This is an error-level diagnostic, but currently still marked as experimental, because there might be spurious errors and this hasn't been tested too well.
This does not yet emit diagnostics when expansion in item bodies fails, just for module-level macros.
Known bug: The "proc macro not found" diagnostic points at the whole item for custom derives, it should just point at the macro's name in the `#[derive]` list, but I haven't found an easy way to do that.
Screenshots:
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
6650: Make completion and assists module independent r=matklad a=SomeoneToIgnore
A follow-up of https://github.com/rust-analyzer/rust-analyzer/pull/6553#discussion_r524402907
Move the common code for both assists and completion modules into a separate crate.
Co-authored-by: Kirill Bulatov <mail4score@gmail.com>
6586: Don't call a closure a function in the infer_function_return_type assist label r=lnicola a=Veykril
`Add this function's return type` becomes `Add this closure's return type` for closures. This makes it more obvious that we are indeed planning on modifying the closure and not its containing function.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
6618: Properly infer tuple patterns when encountering ellipsis r=Veykril a=Veykril
We basically just split the subpatterns into two halves when the ellipsis is present and then offset the latter half to account for the ignored bindings.
Fixes#6616
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
6610: add 'Re-enable this test' assist r=SomeoneToIgnore a=jakobhellermann
The `Ignore this test` assist previously allowed ignoring multiple times, each time adding a `#[ignore]` attribute.
This PR instead shows an assist to undo the ignoring.
Co-authored-by: Jakob Hellermann <jakob.hellermann@protonmail.com>
6553: Auto imports in completion r=matklad a=SomeoneToIgnore
Closes https://github.com/rust-analyzer/rust-analyzer/issues/1062 but does not handle the completion order, since it's a separate task for https://github.com/rust-analyzer/rust-analyzer/issues/4922 , https://github.com/rust-analyzer/rust-analyzer/issues/4922 and maybe something else.
2 quirks in the current implementation:
* traits are not auto imported during method completion
If I understand the current situation right, we cannot search for traits by a **part** of a method name, we need a full name with correct case to get a trait for it.
* VSCode (?) autocompletion is not as rigid as in Intellij Rust as you can notice on the animation.
Intellij is able to refresh the completions on every new symbol added, yet VS Code does not query the completions on every symbol for me.
With a few debug prints placed in RA, I've observed the following behaviour: after the first set of completion suggestions is received, next symbol input does not trigger a server request, if the completions contain this symbol.
When more symbols added, the existing completion suggestions are filtered out until none are left and only then, on the next symbol it queries for completions.
It seems like the only alternative to get an updated set of results is to manually retrigger it with Esc and Ctrl + Space.
Despite the eerie latter bullet, the completion seems to work pretty fine and fast nontheless, but if you have any ideas on how to make it more smooth, I'll gladly try it out.
Co-authored-by: Kirill Bulatov <mail4score@gmail.com>
