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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,22 @@ | ||
struct Header; | ||
struct EntryMetadata; | ||
struct Entry<A, B>(A, B); | ||
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trait Tr { | ||
type EncodedKey; | ||
type EncodedValue; | ||
} | ||
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fn test<C: Tr, R>( | ||
// This APIT is long, however we shouldn't render the type name with a newline in it. | ||
y: impl FnOnce( | ||
&mut Header, | ||
&mut [EntryMetadata], | ||
&mut [Entry<C::EncodedKey, C::EncodedValue>] | ||
) -> R, | ||
) { | ||
let () = y; | ||
//~^ ERROR mismatched types | ||
} | ||
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fn main() {} |
22 changes: 22 additions & 0 deletions
22
tests/ui/impl-trait/arg-position-impl-trait-too-long.stderr
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error[E0308]: mismatched types | ||
--> $DIR/arg-position-impl-trait-too-long.rs:18:9 | ||
| | ||
LL | y: impl FnOnce( | ||
| ________- | ||
LL | | &mut Header, | ||
LL | | &mut [EntryMetadata], | ||
LL | | &mut [Entry<C::EncodedKey, C::EncodedValue>] | ||
LL | | ) -> R, | ||
| |__________- this type parameter | ||
LL | ) { | ||
LL | let () = y; | ||
| ^^ - this expression has type `impl FnOnce(&mut Header, &mut [EntryMetadata], &mut [Entry<C::EncodedKey, C::EncodedValue>]) -> R` | ||
| | | ||
| expected type parameter `impl FnOnce(&mut Header, &mut [EntryMetadata], &mut [Entry<C::EncodedKey, C::EncodedValue>]) -> R`, found `()` | ||
| | ||
= note: expected type parameter `impl FnOnce(&mut Header, &mut [EntryMetadata], &mut [Entry<C::EncodedKey, C::EncodedValue>]) -> R` | ||
found unit type `()` | ||
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error: aborting due to previous error | ||
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For more information about this error, try `rustc --explain E0308`. |