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| author | Esteban Küber <esteban@kuber.com.ar> | 2024-03-21 00:03:59 +0000 |
|---|---|---|
| committer | Esteban Küber <esteban@kuber.com.ar> | 2024-03-21 00:03:59 +0000 |
| commit | 6b24fdf8113d5f422bfaeff7071d8251a13468b1 (patch) | |
| tree | f2ed795d24e725ab108a478d5be26da88d9414dc /compiler/rustc_parse/src/errors.rs | |
| parent | a128516cf9de352ae1f9d430ed730363c7ca3c0c (diff) | |
| download | rust-6b24fdf8113d5f422bfaeff7071d8251a13468b1.tar.gz rust-6b24fdf8113d5f422bfaeff7071d8251a13468b1.zip | |
Provide structured suggestion for unconstrained generic constant
```
error: unconstrained generic constant
--> $DIR/const-argument-if-length.rs:18:10
|
LL | pad: [u8; is_zst::<T>()],
| ^^^^^^^^^^^^^^^^^^^
|
help: try adding a `where` bound
|
LL | pub struct AtLeastByte<T: ?Sized> where [(); is_zst::<T>()]: {
| ++++++++++++++++++++++++++
```
Detect when the constant expression isn't `usize` and suggest casting:
```
error: unconstrained generic constant
--> f300.rs:6:10
|
6 | bb::<{!N}>();
| ^^^^
-Ztrack-diagnostics: created at compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs:3539:36
|
help: try adding a `where` bound
|
5 | fn b<const N: bool>() where [(); {!N} as usize]: {
| ++++++++++++++++++++++++++
```
Fix #122395.
Diffstat (limited to 'compiler/rustc_parse/src/errors.rs')
0 files changed, 0 insertions, 0 deletions