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4227: Report invalid, nested, multi-segment crate-paths r=matklad a=djrenren
There was a bug in the previous path-validating code that didn't detect multi-segment paths that started with `crate`.
```rust
// Successfully reported
use foo::{crate};
// BUG: was not being reported
use foo::{crate::bar};
```
This was due to my confusion about path-associativity. That is, the path with no qualifier is the innermost path, not the outermost. I've updated the code with a lot of comments to explain what's going on.
This bug was discovered when I found an erroneous `ok` test which I reported here:
https://github.com/rust-analyzer/rust-analyzer/issues/4226
This test now fails and has been modified, hopefully in the spirit of the original test, to be correct. Sorry about submitting the bug in the first place!
Co-authored-by: John Renner <[email protected]>
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Specifically, things like:
use foo::{crate::bar};
Are now being caught, when before we only caught:
use foo::{crate};
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The grammar now looks like this
[name_ref :] pat
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We used
name [: expr]
grammar before, now it is
[name :] expr
which makes things simpler
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The sytax tree output files now use .rast extension
(rust-analyzer syntax tree or rust abstract syntax tree
(whatever)).
This format has a editors/code/ra_syntax_tree.tmGrammar.json declaration
that supplies nice syntax highlighting for .rast files.
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We treat macro calls as expressions (there's appropriate Into impl),
which causes problem if there's expresison and non-expression macro in
the same node (like in the match arm).
We fix this problem by nesting macor patterns into another node (the
same way we nest path into PathExpr or PathPat). Ideally, we probably
should add a similar nesting for macro expressions, but that needs
some careful thinking about macros in blocks: `{ am_i_expression!() }`.
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We should eat only a single block, and not whatever larger expression
may start with a block.
closes #3721
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Closes #3661
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closes #3571
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closes #3512
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constructed from TextUnit
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3047: Update async unsafe fn ordering in parser r=matklad a=kiljacken
As of rust-lang/rust#61319 the correct order for functions that are both unsafe and async is: `async unsafe fn` and not `unsafe async fn`.
This commit updates the parser tests to reflect this, and corrects parsing behavior to accept the correct ordering.
Fixes #3025
Co-authored-by: Emil Lauridsen <[email protected]>
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As of rust-lang/rust#61319 the correct order for functions that are both
unsafe and async is: `async unsafe fn` and not `unsafe async fn`.
This commit updates the parser tests to reflect this, and corrects
parsing behavior to accept the correct ordering.
Fixes #3025
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- `Fn__(...)` parameters with idents/patterns no longer parse
- Trait function parameters with arbitrary patterns parse
- Trait function parameters without idents/patterns no longer parse
- `fn(...)` parameters no longer parse with patterns other than a single ident
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Allow attributes before function arguments
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also updates generated inline tests
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This adds support for function calls of the form:
```rust
(
#[attr(...)] 1.2,
#[attr_one(...)]
#[attr_two(...)]
1.5,
... etc ...
)
```
Closes https://github.com/rust-analyzer/rust-analyzer/issues/2801
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- Handle const generics type args
- Fix issue with const generic as first parameter in trait impl
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2642: Use name instead of ident in parser for macro 2.0 syntax r=matklad a=edwin0cheng
Co-authored-by: Edwin Cheng <[email protected]>
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2641: Parse const generics r=matklad a=roblabla
Adds very primitive support for parsing const generics (`const IDENT: TY`) so that rust-analyzer stops complaining about the syntax being invalid.
Fixes #1574
Fixes #2281
Co-authored-by: roblabla <[email protected]>
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Fixes #1574
Fixes #2281
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Although structs and unions have the same syntax and differ only in
the keyword, re-using the single syntax node for both of them leads to
confusion in practice, and propagates further down the hir in an
upleasent way.
Moreover, static and consts also share syntax, but we use different
nodes for them.
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1951: Lower the precedence of the `as` operator. r=matklad a=goffrie
Previously, the `as` operator was being parsed like a postfix expression, and
therefore being given the highest possible precedence. That caused it to bind
more tightly than prefix operators, which it should not. Instead, parse it
somewhat like a normal binary expression with some special-casing.
Fixes #1851.
Co-authored-by: Geoffry Song <[email protected]>
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