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// Regression test for issue #91370. | ||
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extern { | ||
//~^ `extern` blocks define existing foreign functions | ||
fn f() { | ||
//~^ incorrect function inside `extern` block | ||
//~| cannot have a body | ||
impl Copy for u8 {} | ||
} | ||
} | ||
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fn main() {} |
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src/test/ui/foreign/issue-91370-foreign-fn-block-impl.stderr
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error: incorrect function inside `extern` block | ||
--> $DIR/issue-91370-foreign-fn-block-impl.rs:5:8 | ||
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LL | extern { | ||
| ------ `extern` blocks define existing foreign functions and functions inside of them cannot have a body | ||
LL | | ||
LL | fn f() { | ||
| ________^___- | ||
| | | | ||
| | cannot have a body | ||
LL | | | ||
LL | | | ||
LL | | impl Copy for u8 {} | ||
LL | | } | ||
| |_____- help: remove the invalid body: `;` | ||
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= help: you might have meant to write a function accessible through FFI, which can be done by writing `extern fn` outside of the `extern` block | ||
= note: for more information, visit https://doc.rust-lang.org/std/keyword.extern.html | ||
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error: aborting due to previous error | ||
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