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Modify message for keyword as identifier name
This is a temporary solution to #46311.
The message is generic enough to cover both cases and is probably a fine enough solution to the specific problem described in the task. However, the underlying reason for this to be wrong is that `next_token_inner` returns `Lifetime` even if the token is a label. That's not simple, as the syntax for both can be quite similar and it may need to take a look to the next token to make a decision. I'm not sure I have enough knowledge about the project to be able to solve that (yet!), so I thought I'll fix the immediate problem first.
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Rename C-like enum to Field-less enum
There is no need to reference the C programming language to explain this concept.
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There is no need to reference the C programming language to explain this concept.
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Add error for `...` in expressions
Follow-up to https://github.com/rust-lang/rust/pull/44709
Tracking issue: https://github.com/rust-lang/rust/issues/28237
* Using `...` in expressions was a warning, now it's an error
* The error message suggests using `..` or `..=` instead, and explains the difference
* Updated remaining occurrences of `...` to `..=`
r? petrochenkov
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When encountering a let binding type error, attempt to parse as
initializer instead. If successful, it is likely just a typo:
```rust
fn main() {
let x: Vec::with_capacity(10);
}
```
```
error: expected type, found `10`
--> file.rs:3:31
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3 | let x: Vec::with_capacity(10, 20);
| -- ^^
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| |help: did you mean assign here?: `=`
| while parsing the type for `x`
```
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With regrets, this breaks rustfmt and rls.
This is in the matter of #45388.
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output message is shown in another 'help:' block
line with +100 columns formatted
test adjusted
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Add ..= to the parser
Add ..= to libproc_macro
Add ..= to ICH
Highlight ..= in rustdoc
Update impl Debug for RangeInclusive to ..=
Replace `...` to `..=` in range docs
Make the dotdoteq warning point to the ...
Add warning for ... in expressions
Updated more tests to the ..= syntax
Updated even more tests to the ..= syntax
Updated the inclusive_range entry in unstable book
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Accept underscores in unicode escapes
Fixes #43692.
I don't know if this need an RFC, but at least the impl is here!
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Lambda expressions honor no struct literal restriction
This is a fix for #43412 if we decide that it is indeed a bug :)
closes #43412
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Fixes #43692.
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qnighy:disallow-underscore-suffix-for-string-like-literals, r=nikomatsakis
Disallow underscore suffix for string-like literals.
This patch turns string/bytestring/char/byte literals followed by an underscore, like `"Foo"_`, to an error.
`scan_optional_raw_name` will parse `_` as a valid raw name, but it will be rejected by the parser. I also considered just stopping parsing when the suffix is `_`, but in that case `"Foo"_` will be lexed as two valid tokens.
Fixes the latter half of #41723.
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libsyntax/parse: fix missing kind error reporting
Fixes #41161.
Fixes #41239.
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Fixes #41161.
Fixes #41239.
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Use proper span for tuple index parsed as float
Fix diagnostic suggestion from:
```rust
help: try parenthesizing the first index
| (1, (2, 3)).((1, (2, 3)).1).1;
```
to the correct:
```rust
help: try parenthesizing the first index
| ((1, (2, 3)).1).1;
```
Fix #41081.
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Fix diagnostic suggestion from:
```rust
help: try parenthesizing the first index
| (1, (2, 3)).((1, (2, 3)).1).1;
```
to the correct:
```rust
help: try parenthesizing the first index
| ((1, (2, 3)).1).1;
```
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Fixes #40149
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* Point at where the token was expected instead of the last token
successfuly parsed.
* Only show `unexpected token` if the next char and the unexpected token
don't have the same span.
* Change some cfail and pfail tests to ui test.
* Don't show all possible tokens in span label if they are more than 6.
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```rust
error: expected one of `.`, `;`, `?`, `}`, or an operator, found `)`
--> $DIR/token-error-correct-3.rs:29:9
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25 | foo()
| - expected one of `.`, `;`, `?`, `}`, or an operator after this
...
29 | } else {
| ^ unexpected token
```
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`tokenstream::TokenTree::Sequence`.
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Closes #37340.
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