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Clean up E0263 explanation
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GuillaumeGomez committed Feb 2, 2020
1 parent 320ada6 commit 019ca55
Showing 1 changed file with 13 additions and 4 deletions.
17 changes: 13 additions & 4 deletions src/librustc_error_codes/error_codes/E0263.md
@@ -1,7 +1,16 @@
A lifetime name cannot be declared more than once in the same scope. For
example:
A lifetime was declared more than once in the same scope.

Erroneous code example:

```compile_fail,E0263
// error, lifetime name `'a` declared twice in the same scope
fn foo<'a, 'b, 'a>(x: &'a str, y: &'b str) { }
fn foo<'a, 'b, 'a>(x: &'a str, y: &'b str, z: &'a str) { // error!
}
```

Two lifetimes cannot have the same name. To fix this example, change
the second `'a` lifetime into something else (`'c` for example):

```
fn foo<'a, 'b, 'c>(x: &'a str, y: &'b str, z: &'c str) { // ok!
}
```

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