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``` error: `S2<'_>` is forbidden as the type of a const generic parameter --> $DIR/lifetime-in-const-param.rs:5:23 | LL | struct S<'a, const N: S2>(&'a ()); | ^^ | = 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 | LL + #![feature(adt_const_params)] | ``` Fix #55941.
37 lines
1.4 KiB
Plaintext
37 lines
1.4 KiB
Plaintext
warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
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--> $DIR/constifconst-call-in-const-position.rs:3:30
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LL | #![feature(const_trait_impl, generic_const_exprs)]
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| ^^^^^^^^^^^^^^^^^^^
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= note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
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= note: `#[warn(incomplete_features)]` on by default
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error[E0015]: cannot call non-const fn `<T as Tr>::a` in constants
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--> $DIR/constifconst-call-in-const-position.rs:17:9
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LL | [0; T::a()]
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| ^^^^^^
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= note: calls in constants are limited to constant functions, tuple structs and tuple variants
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help: add `#![feature(effects)]` to the crate attributes to enable
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LL + #![feature(effects)]
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error[E0015]: cannot call non-const fn `<T as Tr>::a` in constants
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--> $DIR/constifconst-call-in-const-position.rs:16:38
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LL | const fn foo<T: ~const Tr>() -> [u8; T::a()] {
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| ^^^^^^
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= note: calls in constants are limited to constant functions, tuple structs and tuple variants
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help: add `#![feature(effects)]` to the crate attributes to enable
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LL + #![feature(effects)]
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error: aborting due to 2 previous errors; 1 warning emitted
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For more information about this error, try `rustc --explain E0015`.
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