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Clean up E0522 explanation #71319

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Apr 19, 2020
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Clean up E0522 explanation #71319

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11 changes: 7 additions & 4 deletions src/librustc_error_codes/error_codes/E0522.md
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Original file line number Diff line number Diff line change
@@ -1,7 +1,5 @@
The lang attribute is intended for marking special items that are built-in to
Rust itself. This includes special traits (like `Copy` and `Sized`) that affect
how the compiler behaves, as well as special functions that may be automatically
invoked (such as the handler for out-of-bounds accesses when indexing a slice).
The lang attribute was used in an invalid context.

Erroneous code example:

```compile_fail,E0522
Expand All @@ -12,3 +10,8 @@ fn cookie() -> ! { // error: definition of an unknown language item: `cookie`
loop {}
}
```

The lang attribute is intended for marking special items that are built-in to
Rust itself. This includes special traits (like `Copy` and `Sized`) that affect
how the compiler behaves, as well as special functions that may be automatically
invoked (such as the handler for out-of-bounds accesses when indexing a slice).