rust/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.min.stderr
Barrett Ray c5598d6a9e fix(hir_analysis/wfcheck): don't leak {type error}
avoid `{type error}` being leaked in user-facing messages,
particularly when using the `adt_const_params` feature
2024-09-29 23:40:43 -05:00

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error: generic parameters may not be used in const operations
--> $DIR/array-size-in-generic-struct-param.rs:8:48
|
LL | struct ArithArrayLen<const N: usize>([u32; 0 + N]);
| ^ cannot perform const operation using `N`
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= help: const parameters may only be used as standalone arguments, i.e. `N`
= help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
error: generic parameters may not be used in const operations
--> $DIR/array-size-in-generic-struct-param.rs:23:15
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LL | arr: [u8; CFG.arr_size],
| ^^^ cannot perform const operation using `CFG`
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= help: const parameters may only be used as standalone arguments, i.e. `CFG`
= help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
error: `Config` is forbidden as the type of a const generic parameter
--> $DIR/array-size-in-generic-struct-param.rs:21:21
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LL | struct B<const CFG: Config> {
| ^^^^^^
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= note: the only supported types are integers, `bool`, and `char`
help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types
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LL + #![feature(adt_const_params)]
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error: aborting due to 3 previous errors