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Rollup merge of #71541 - wesleywiser:issue_26376, r=Dylan-DPC
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Add regression test for #26376

Closes #26376
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Dylan-DPC authored Apr 25, 2020
2 parents 98a43ca + 1474fac commit fde4727
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16 changes: 16 additions & 0 deletions src/test/ui/unsized/return-unsized-from-trait-method.rs
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// ignore-tidy-linelength

// regression test for #26376

trait Foo {
fn foo(&self) -> [u8];
}

fn foo(f: Option<&dyn Foo>) {
if let Some(f) = f {
let _ = f.foo();
//~^ ERROR cannot move a value of type [u8]: the size of [u8] cannot be statically determined
}
}

fn main() { foo(None) }
9 changes: 9 additions & 0 deletions src/test/ui/unsized/return-unsized-from-trait-method.stderr
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error[E0161]: cannot move a value of type [u8]: the size of [u8] cannot be statically determined
--> $DIR/return-unsized-from-trait-method.rs:11:17
|
LL | let _ = f.foo();
| ^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0161`.

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