mirror of https://github.com/rust-lang/rust
25 lines
976 B
Plaintext
25 lines
976 B
Plaintext
error: const `impl` for trait `A` which is not marked with `#[const_trait]`
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--> $DIR/const-impl-requires-const-trait.rs:8:12
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LL | pub trait A {}
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| - help: mark `A` as const: `#[const_trait]`
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...
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LL | impl const A for () {}
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| ^
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= note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
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= note: adding a non-const method body in the future would be a breaking change
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error[E0207]: the const parameter `host` is not constrained by the impl trait, self type, or predicates
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--> $DIR/const-impl-requires-const-trait.rs:8:6
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LL | impl const A for () {}
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| ^^^^^ unconstrained const parameter
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= note: expressions using a const parameter must map each value to a distinct output value
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= note: proving the result of expressions other than the parameter are unique is not supported
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0207`.
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