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29 commits

Author SHA1 Message Date
Ralf Jung eb584a23bf offset_of: allow (unstably) taking the offset of slice tail fields 2024-06-08 18:17:55 +02:00
George Bateman 2348eb271c
Update mir-opt tests, add proper regression test 2024-04-28 21:10:09 +01:00
George Bateman ca79086c87
Fix #124478 - offset_of! returns a temporary 
This was due to the must_use() call. Adding HIR's OffsetOf to the must_use
checking within the compiler avoids this issue.
 2024-04-28 18:36:08 +01:00
Esteban Küber cc9631a371 When displaying multispans, ignore empty lines adjacent to ... 
```
error[E0308]: `match` arms have incompatible types
   --> tests/ui/codemap_tests/huge_multispan_highlight.rs:98:18
    |
6   |       let _ = match true {
    |               ---------- `match` arms have incompatible types
7   |           true => (
    |  _________________-
8   | |             // last line shown in multispan header
...   |
96  | |
97  | |         ),
    | |_________- this is found to be of type `()`
98  |           false => "
    |  __________________^
...   |
119 | |
120 | |         ",
    | |_________^ expected `()`, found `&str`

error[E0308]: `match` arms have incompatible types
   --> tests/ui/codemap_tests/huge_multispan_highlight.rs:215:18
    |
122 |       let _ = match true {
    |               ---------- `match` arms have incompatible types
123 |           true => (
    |  _________________-
124 | |
125 | |         1 // last line shown in multispan header
...   |
213 | |
214 | |         ),
    | |_________- this is found to be of type `{integer}`
215 |           false => "
    |  __________________^
216 | |
217 | |
218 | |         1 last line shown in multispan
...   |
237 | |
238 | |         ",
    | |_________^ expected integer, found `&str`
```
 2024-03-18 16:25:36 +00:00
许杰友 Jieyou Xu (Joe) ec2cc761bc
[AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
Esteban Küber 6efddac288 Provide more context on derived obligation error primary label 
Expand the primary span of E0277 when the immediate unmet bound is not what the user wrote:

```
error[E0277]: the trait bound `i32: Bar` is not satisfied
 --> f100.rs:6:6
  |
6 |     <i32 as Foo>::foo();
  |      ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
  |
help: this trait has no implementations, consider adding one
 --> f100.rs:2:1
  |
2 | trait Bar {}
  | ^^^^^^^^^
note: required for `i32` to implement `Foo`
 --> f100.rs:3:14
  |
3 | impl<T: Bar> Foo for T {}
  |         ---  ^^^     ^
  |         |
  |         unsatisfied trait bound introduced here
```

Fix #40120.
 2024-01-30 21:28:18 +00:00
George Bateman 615946db4f
Stabilize simple offset_of 2024-01-19 20:38:51 +00:00
George-lewis d56cdd48cb Bless tests 
Update tests
 2024-01-13 12:46:58 -05:00
George Bateman 09bb07e38f
Make offset_of field parsing use metavariable which handles any spacing 2024-01-02 22:18:35 +00:00
Nilstrieb 41e8d152dc Show number in error message even for one error 
Co-authored-by: Adrian <adrian.iosdev@gmail.com>
 2023-11-24 19:15:52 +01:00
Esteban Küber dfa75391f8 Suggest field typo through derefs 
Take into account implicit dereferences when suggesting fields.

```
error[E0609]: no field `longname` on type `Arc<S>`
  --> $DIR/suggest-field-through-deref.rs:10:15
   |
LL |     let _ = x.longname;
   |               ^^^^^^^^ help: a field with a similar name exists: `long_name`
```

CC https://github.com/rust-lang/rust/issues/78374#issuecomment-719564114
 2023-11-16 17:00:23 +00:00
George Bateman 7c09b99ebb
Feature gate enums in offset_of 2023-11-03 13:16:47 +00:00
George Bateman e742f809f6
Update based on wesleywiser review 2023-10-31 23:41:40 +00:00
George Bateman d995bd61e7
Enums in offset_of: update based on est31, scottmcm & llogiq review 2023-10-31 23:26:02 +00:00
George Bateman e936416a8d
Support enum variants in offset_of! 2023-10-31 23:25:54 +00:00
Michael Goulet 137b6d0b01 Point to where missing return type should go 2023-10-04 21:09:54 +00:00
Chayim Refael Friedman 592844cf88 Warn on unused offset_of!() result 2023-06-21 11:43:14 +03:00
Lukas Markeffsky b6a3f126c0 change std::marker::Sized to just Sized 2023-06-15 12:01:38 +02:00
est31 1b90f5efaf Support float-like tuple indices in offset_of!() 
The tokenizer gives us whole float literal tokens, we have to split them up
in order to be able to create field access from them.
 2023-06-08 23:42:58 +02:00
clubby789 d722f27684 Test invalid tuple field identifiers 2023-06-02 01:33:09 +00:00
clubby789 731601ccd1 Check tuple elements are Sized in offset_of 2023-06-02 01:18:59 +00:00
clubby789 6c18d1ecef offset_of: Don't require type to be sized 2023-05-29 21:56:10 +00:00
Lukas Markeffsky 7cdb23b98a don't skip inference for type in offset_of! 2023-05-20 15:20:27 +02:00
est31 30c0e4e72b Add more tests for the offset_of!() macro 
* ensuring that offset_of!(Self, ...) works iff inside an impl block
* ensuring that the output type is usize and doesn't coerce. this can be
  changed in the future, but if it is done, it should be a conscious descision
* improving the privacy checking test
* ensuring that generics don't let you escape the unsized check
 2023-05-18 13:16:17 +02:00
clubby789 35cf5726e3 Erase regions of type in offset_of! 2023-05-16 21:36:42 +00:00
est31 83b4df4e61 Add feature gate 2023-05-05 21:44:48 +02:00
est31 5eb29c7f49 Migrate offset_of from a macro to builtin # syntax 2023-05-05 21:44:13 +02:00
DrMeepster a642563d49 major test improvements 2023-04-21 02:45:48 -07:00
DrMeepster 511e457c4b offset_of 2023-04-21 02:14:02 -07:00