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Clean up E0437 explanation #70103

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Mar 20, 2020
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Clean up E0437 explanation #70103

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9 changes: 5 additions & 4 deletions src/librustc_error_codes/error_codes/E0437.md
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Original file line number Diff line number Diff line change
@@ -1,7 +1,5 @@
Trait implementations can only implement associated types that are members of
the trait in question. This error indicates that you attempted to implement
an associated type whose name does not match the name of any associated type
in the trait.
An associated type whose name does not match any of the associated types
in the trait was used when implementing the trait.

Erroneous code example:

Expand All @@ -13,6 +11,9 @@ impl Foo for i32 {
}
```

Trait implementations can only implement associated types that are members of
the trait in question.

The solution to this problem is to remove the extraneous associated type:

```
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