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Which caused the macros of the popular `tracing` crate to not offer completions.
The reason is rather complicated: it boils down to macro ignoring their input and completion always choosing the first expansion.
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Prior to this commit we used to generate import paths, then zipped them with the existing qualifier to check if they agree on the path to import.
This is brittle when re-exports come into play causing items to have multiple applicable paths that refer to them.
This commit instead rewrites this logic by generating the import path for the qualifier, verifying that the rest of the qualifier resolves and then doing a final lookup on that resolution result for the final segment instead.
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Previously all lints were assumed to be `#[warn]`, and we had a hand-coded list of `#[allow]` exceptions. Now the severity is autogenerated from rustdoc output.
Also support lints that change status between editions, and the `warnings` lint group.
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This mainly aids in error recovery but also makes it a bit easier to handle lifetime resolution.
While doing so it also came apparent that we were not actually lowering lifetime outlives relationships within lifetime parameter declaration bounds, so this fixes that.
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feat: Complete derive helper attributes
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Only their names, anything can go inside.
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the client capabilities.
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fix: auto-complete import for aliased function and module
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feat: Support `cfg(true)` and `cfg(false)`
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As per RFC 3695.
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feat: better completions for extern blcoks
This PR refactors `add_keywords` (making it much clearer!) and enhances completion for `extern` blocks.
It is recommended to reviewing the changes in order of the commits:
- The first commit (f3c4dde0a4917a2bac98605cc045eecfb4d69872) doesn’t change any logic but refactors parts of the `add_keywords` function and adds detailed comments.
- The second commit (5dcc1ab649bf8a49cadf006d620871b12f093a2f) improves completion for `extern` kw and extern blocks.
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fix: private items are shown in completions for modules in fn body
Close: #18287
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internal: Send less data during `textDocument/completion` if possible
Similar to https://github.com/rust-lang/rust-analyzer/pull/15522, stops sending extra data during `textDocument/completion` if that data was set in the client completions resolve capabilities, and sends those only during `completionItem/resolve` requests.
Currently, rust-analyzer sends back all fields (including potentially huge docs) for every completion item which might get large.
Same as the other one, this PR aims to keep the changes minimal and does not remove extra computations for such fields — instead, it just filters them out before sending to the client.
The PR omits primitive, boolean and integer, types such as `deprecated`, `preselect`, `insertTextFormat`, `insertTextMode`, etc. AND `additionalTextEdits` — this one looks very dangerous to compute for each completion item (as the spec says we ought to if there's no corresponding resolve capabilities provided) due to the diff computations and the fact that this code had been in the resolution for some time.
It would be good to resolve this lazily too, please let me know if it's ok to do.
When tested with Zed which only defines `documentation` and `additionalTextEdits` in its client completion resolve capabilities, rust-analyzer starts to send almost 3 times less characters:
Request:
```json
{"jsonrpc":"2.0","id":104,"method":"textDocument/completion","params":{"textDocument":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide/src/inlay_hints.rs"},"position":{"line":90,"character":14},"context":{"triggerKind":1}}}
```
<img width="1338" alt="image" src="https://github.com/user-attachments/assets/104f19b5-7095-4fc1-b008-5d829623b2e2">
Before: 381944 characters
[before.json](https://github.com/user-attachments/files/17092385/before.json)
After: 140503 characters
[after.json](https://github.com/user-attachments/files/17092386/after.json)
After Zed's [patch](https://github.com/zed-industries/zed/pull/18212) to enable all resolving possible: 84452 characters
[after-after.json](https://github.com/user-attachments/files/17092755/after-after.json)
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fix: Better support references in consuming postfix completions
Fixes #18155.
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If a user ever sees the completion marker, it's confusing to see text
about IntelliJ. Use a string that's more explicitly about completion
for rust-analyzer.
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completions (e.g. `call`)
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fix: Don't complete `;` when in closure return expression
Completing it will break syntax.
Fixes #18130.
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Be it "Expand Macro Recursively", "Inline macro" or few other things.
We replace it with the crate name, as should've always been.
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function into `CompletionContext`
So that we don't recompute it for every item.
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Completing it will break syntax.
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feat: generate names for tuple-struct in add-missing-match-arms
fix #18034.
This PR includes the following enhancement:
- Introduced a `NameGenerator` in `suggest_name`, which implements an automatic renaming algorithm to avoid name conflicts. Here are a few examples:
```rust
let mut generator = NameGenerator::new();
assert_eq!(generator.suggest_name("a"), "a");
assert_eq!(generator.suggest_name("a"), "a1");
assert_eq!(generator.suggest_name("a"), "a2");
assert_eq!(generator.suggest_name("b"), "b");
assert_eq!(generator.suggest_name("b"), "b1");
assert_eq!(generator.suggest_name("b2"), "b2");
assert_eq!(generator.suggest_name("b"), "b3");
assert_eq!(generator.suggest_name("b"), "b4");
assert_eq!(generator.suggest_name("b3"), "b5");
```
- Updated existing testcases in ide-assists for the new `NameGenerator` (only modified generated names).
- Generate names for tuple structs instead of using wildcard patterns in `add-missing-match-arms`.
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But provide a config to suppress that.
I didn't check whether we are in statement expression position, because this is hard in completion (due to the natural incompleteness of source code when completion is invoked), and anyway using function returning unit as an argument to something seems... dubious.
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feat: Suggest name in completion for let_stmt and fn_param
fix #17780
1. Refactor: move `ide_assist::utils::suggest_name` to `ide-db::syntax_helpers::suggest_name` for reuse.
2. When completing `IdentPat`, detecte if the current node is a `let_stmt` or `fn_param`, and suggesting a new name based on the context.
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