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112 Commits

Author SHA1 Message Date
Matthias Krüger
7c2d57e0fa couple of clippy::complexity fixes 2022-04-13 22:51:34 +02:00
rainy-me
4a0f8d5175 improve diagnostics for unterminated nested block comment 2022-04-14 03:22:02 +09:00
Dylan DPC
86388f6171
Rollup merge of #95251 - GrishaVar:hashes-u16-to-u8, r=dtolnay 
Reduce max hash in raw strings from u16 to u8

[Relevant discussion](https://rust-lang.zulipchat.com/#narrow/stream/237824-t-lang.2Fdoc/topic/Max.20raw.20string.20delimiters)
 2022-03-31 00:26:31 +02:00
Grisha Vartanyan
759d1e6af8 Update error message & remove outdated test comment 2022-03-30 18:20:30 +02:00
Michael Goulet
928388bad2 Make fatal DiagnosticBuilder yield never 2022-03-27 22:25:32 -07:00
mark
bb8d4307eb rustc_error: make ErrorReported impossible to construct 
There are a few places were we have to construct it, though, and a few
places that are more invasive to change. To do this, we create a
constructor with a long obvious name.
 2022-03-16 10:35:24 -05:00
mark
e489a94dee rename ErrorReported -> ErrorGuaranteed 2022-03-02 09:45:25 -06:00
Caio
e3e902bb06 4 - Make more use of let_chains 
Continuation of #94376.

cc #53667
 2022-02-28 07:49:56 -03:00
Eduard-Mihai Burtescu
b7e95dee65 rustc_errors: let DiagnosticBuilder::emit return a "guarantee of emission". 2022-02-23 06:38:52 +00:00
Eduard-Mihai Burtescu
02ff9e0aef Replace &mut DiagnosticBuilder, in signatures, with &mut Diagnostic. 2022-02-23 05:38:19 +00:00
est31
2ef8af6619 Adopt let else in more places 2022-02-19 17:27:43 +01:00
Matthias Krüger
637d8b89e8
Rollup merge of #94011 - est31:let_else, r=lcnr 
Even more let_else adoptions

Continuation of #89933, #91018, #91481, #93046, #93590.
 2022-02-17 23:00:59 +01:00
est31
60f969a4f2 Adopt let_else in even more places 2022-02-16 22:43:39 +01:00
Erin Petra Sofiya Moon
e59cda9ee1
suggest using raw string literals when invalid escapes appear 
i'd guess about 70% of "bad escape" cases occur when someone meant to
use a raw string literal because they're passing it directly to
Regex::new(). this emits an advisory (Applicability::MaybeIncorrect)
help: suggestion to the user that they use an r"" string,
on top of the normal notes about looking at the
string literal documentation/spec.
 2022-02-14 15:11:38 -05:00
Esteban Kuber
d68add9ecc review comment: plural of emoji is emoji 2021-11-23 20:36:19 +00:00
Esteban Kuber
21224e6ee0 Account for confusable codepoints when recovering emoji identifiers 2021-11-23 20:36:19 +00:00
Esteban Kuber
5a68abb094 Tokenize emoji as if they were valid indentifiers 
In the lexer, consider emojis to be valid identifiers and reject
them later to avoid knock down parse errors.
 2021-11-23 20:35:07 +00:00
5225225
09e59c2875 Inline printable function 2021-11-16 08:06:31 +00:00
5225225
52199c93bb Suggest removing the non-printing characters 2021-11-16 08:06:30 +00:00
5225225
de05d3ec31 Print full char literal on error if any are non-printing 2021-11-16 08:06:30 +00:00
Hans Kratz
7885233df0 Optimize literal, doc comment lint as well, extract function. 2021-11-04 23:31:42 +01:00
Hans Kratz
a5b25a2cfa Create subslice as that leads to a smaller code size. 2021-11-04 17:03:13 +01:00
Hans Kratz
2d9f0e2c50 Optimize bidi character detection. 2021-11-04 12:01:26 +01:00
Pietro Albini
cdd3b8624f
fix formatting 2021-11-01 10:39:43 +01:00
Esteban Küber
c0b134582a
Lint against RTL unicode codepoints in literals and comments 
Address CVE-2021-42574.
 2021-10-31 13:14:04 +01:00
Fabian Wolff
0d8245b5b1 Improve diagnostics if a character literal contains combining marks 2021-09-10 19:23:37 +02:00
Anton Golov
a03fbfe2ff Warn when an escaped newline skips multiple lines 2021-08-11 11:35:08 +02:00
Cameron Steffen
4380056397
Rollup merge of #87659 - FabianWolff:issue-87397, r=davidtwco 
Fix invalid suggestions for non-ASCII characters in byte constants

Fixes #87397.
 2021-08-02 09:36:51 -05:00
bors
4e282795d7 Auto merge of #87662 - FabianWolff:rb-string, r=estebank 
Suggest `br` if the unknown string prefix `rb` is found

Currently, for the following code:
```rust
fn main() {
    rb"abc";
}
```
we issue the following suggestion:
```
help: consider inserting whitespace here
  |
2 |     rb "abc";
  |       --
```
With my changes (only in edition 2021, where unknown prefixes became an error), I get:
```
help: use `br` for a raw byte string
  |
2 |     br"abc";
  |     ^^
```
 2021-07-31 20:20:18 +00:00
Fabian Wolff
f2c9654dcd Suggest br if the unknown string prefix rb is found 2021-07-31 15:37:36 +02:00
Fabian Wolff
c1abb6f4d6 Fix invalid suggestions for non-ASCII characters in byte constants 2021-07-31 15:21:11 +02:00
Anton Golov
5d59b4412e Add warning when whitespace is not skipped after an escaped newline. 2021-07-30 16:26:39 +02:00
Ryan Levick
d4e384bc1d rename rust_2021_token_prefixes to rust_2021_prefixes_incompatible_syntax 2021-07-06 20:13:36 +02:00
Ryan Levick
81c11a212e rust_2021_token_prefixes 2021-07-06 20:13:16 +02:00
Ryan Levick
6c87772e3c Rename reserved_prefix lint to reserved_prefixes 2021-07-06 20:12:55 +02:00
Mara Bos
7490305e13 No reserved_prefix suggestion in proc macro call_site. 2021-06-26 23:11:14 +08:00
Mara Bos
0eeeebc990 Rename 'bad prefix' to 'unknown prefix'. 2021-06-26 23:11:14 +08:00
Mara Bos
d40be0fc64 Check the span's edition for the reserved prefixes. 2021-06-26 23:11:13 +08:00
Mara Bos
6adce70a58 Improve comments for reserved prefixes. 
Co-authored-by: Niko Matsakis <niko@alum.mit.edu>
 2021-06-26 23:11:13 +08:00
Mara Bos
d837c00d10 Add migration lint for reserved prefixes. 2021-06-26 23:11:04 +08:00
Mara Bos
ce43fc9404 Fix note in reserved prefix error. 2021-06-26 23:09:43 +08:00
Mara Bos
c856e6fa53 Add machine applicable suggestion to unknown prefix error. 2021-06-26 23:09:43 +08:00
lrh2000
8dee9bc8fc Reserve prefixed identifiers and string literals (RFC 3101) 
This commit denies any identifiers immediately followed by
one of three tokens `"`, `'` or `#`, which is stricter than
the requirements of RFC 3101 but may be necessary according
to the discussion at [Zulip].

[Zulip]: https://rust-lang.zulipchat.com/#narrow/stream/268952-edition-2021/topic/reserved.20prefixes/near/238470099
 2021-06-26 23:09:43 +08:00
Smitty
bdfcb88e8b Use HTTPS links where possible 2021-06-23 16:26:46 -04:00
Joshua Nelson
96509b4835 Make Diagnostic::span_fatal unconditionally raise an error 
It had no callers which didn't immediately call `raise()`, and this
unifies the behavior with `Session`.
 2021-05-08 23:12:04 -04:00
Joshua Nelson
e49f4471aa Remove some unnecessary uses of struct_span_fatal 
All of them immediately called `emit()` then `raise()`, so they could
just call `span_fatal` directly.
 2021-05-08 23:12:04 -04:00
pierwill
0019ca9141 Fix outdated crate names in compiler docs 
Changes `librustc_X` to `rustc_X`, only in documentation comments.
Plain code comments are left unchanged.

Also fix incorrect file paths.
 2021-04-08 11:12:14 -05:00
Smitty
c6cb014ad6 Clarify error message wording 2021-02-07 11:02:53 -05:00
Smitty
651d289405 Add note about encoding when null bytes found 2021-02-06 19:17:14 -05:00
Esteban Küber
3b5d018ebb Handle Spans for byte and raw strings and add more detail 2021-02-03 13:34:28 -08:00
Nicolas
7be6d67f82
Fix typo in doc comment for report_too_many_hashes 
"to big" -> "too big"
 2020-11-22 07:02:58 -03:00
Guillaume Gomez
99200f760b Fix even more URLs 2020-11-05 20:11:29 +01:00
Eric Huss
35192ff574 Fix span for unicode escape suggestion. 2020-10-05 11:19:08 -07:00
Matthias Krüger
c690c82ad4 use if let instead of single match arm expressions to compact code and reduce nesting (clippy::single_match) 2020-09-20 11:42:52 +02:00
Aleksey Kladov
ccf41dd5eb Rename IsJoint -> Spacing 
To match better naming from proc-macro
 2020-09-03 17:32:45 +02:00
Aleksey Kladov
4231fbc0a8 Condense StringReader's API to a single function 2020-09-03 15:52:15 +02:00
Aleksey Kladov
fabd8a6834 Simplify TokenTreesReader 
This `joint_to_prev` bit of state is no longer needed.
 2020-09-01 11:46:49 +02:00
Aleksey Kladov
5326361fc0 Remove trivia tokens 2020-09-01 11:39:11 +02:00
Aleksey Kladov
8f24c2ec9d Don't emit trivia tokens 2020-09-01 11:39:11 +02:00
Aleksey Kladov
30ce15f1fa Make StringReader private 
After the recent refactorings, we can actually completely hide this
type. It should help with #63689.
 2020-08-31 18:01:01 +02:00
Aleksey Kladov
518cac9190 Remove unused function 2020-08-30 19:54:45 +02:00
mark
9e5f7d5631 mv compiler to compiler/ 2020-08-30 18:45:07 +03:00