mirror of https://github.com/rust-lang/rust
42 lines
1.5 KiB
Plaintext
42 lines
1.5 KiB
Plaintext
error[E0277]: the size for values of type `impl Iterator<Item = i32> + ?Sized` cannot be known at compilation time
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--> $DIR/apit-unsized.rs:1:8
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LL | fn foo(_: impl Iterator<Item = i32> + ?Sized) {}
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| ^ ---------------------------------- this type parameter needs to be `Sized`
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| doesn't have a size known at compile-time
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= help: unsized fn params are gated as an unstable feature
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help: consider removing the `?Sized` bound to make the type parameter `Sized`
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LL - fn foo(_: impl Iterator<Item = i32> + ?Sized) {}
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LL + fn foo(_: impl Iterator<Item = i32>) {}
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help: function arguments must have a statically known size, borrowed types always have a known size
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LL | fn foo(_: &impl Iterator<Item = i32> + ?Sized) {}
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| +
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error[E0277]: the size for values of type `impl ?Sized` cannot be known at compilation time
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--> $DIR/apit-unsized.rs:2:8
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LL | fn bar(_: impl ?Sized) {}
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| ^ ----------- this type parameter needs to be `Sized`
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| |
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| doesn't have a size known at compile-time
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= help: unsized fn params are gated as an unstable feature
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help: consider replacing `?Sized` with `Sized`
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LL - fn bar(_: impl ?Sized) {}
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LL + fn bar(_: impl Sized) {}
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help: function arguments must have a statically known size, borrowed types always have a known size
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LL | fn bar(_: &impl ?Sized) {}
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| +
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0277`.
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