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Update E0565 examples #68894

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Feb 7, 2020
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14 changes: 9 additions & 5 deletions src/librustc_error_codes/error_codes/E0565.md
Original file line number Diff line number Diff line change
Expand Up @@ -2,16 +2,20 @@ A literal was used in a built-in attribute that doesn't support literals.

Erroneous code example:

```ignore (compile_fail not working here; see Issue #43707)
#[inline("always")] // error: unsupported literal
pub fn something() {}
```compile_fail,E0565
#[repr("C")] // error: meta item in `repr` must be an identifier
struct Repr {}

fn main() {}
```

Literals in attributes are new and largely unsupported in built-in attributes.
Work to support literals where appropriate is ongoing. Try using an unquoted
name instead:

```
#[inline(always)]
pub fn something() {}
#[repr(C)] // ok!
struct Repr {}

fn main() {}
```