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rust/tests/ui/const-generics/generic_const_exprs/no_where_clause.stderr

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Add better diagnostic for missing where clause Previously, it's not clear what exactly should be added in the suggested where clause, so this adds an example to demonstrate.
2021-01-30 03:45:18 +00:00
error: unconstrained generic constant
--> $DIR/no_where_clause.rs:10:6
|
LL | b: [f32; complex_maths(N)],
| ^^^^^^^^^^^^^^^^^^^^^^^
|
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.
2024-03-21 00:03:59 +00:00
help: try adding a `where` bound
|
LL | pub struct Example<const N: usize> where [(); complex_maths(N)]: {
| +++++++++++++++++++++++++++++
Add better diagnostic for missing where clause Previously, it's not clear what exactly should be added in the suggested where clause, so this adds an example to demonstrate.
2021-01-30 03:45:18 +00:00
Continue compilation after check_mod_type_wf errors
2024-02-09 12:17:55 +00:00
error: unconstrained generic constant
--> $DIR/no_where_clause.rs:18:15
|
LL | b: [0.; complex_maths(N)],
| ^^^^^^^^^^^^^^^^
|
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.
2024-03-21 00:03:59 +00:00
help: try adding a `where` bound
|
LL | pub fn new() -> Self where [(); complex_maths(N)]: {
| +++++++++++++++++++++++++++++
Continue compilation after check_mod_type_wf errors
2024-02-09 12:17:55 +00:00
error: aborting due to 2 previous errors
Add better diagnostic for missing where clause Previously, it's not clear what exactly should be added in the suggested where clause, so this adds an example to demonstrate.
2021-01-30 03:45:18 +00:00
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