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Harald Hoyer 2019-02-03 19:33:26 +01:00 • committed by Harald Hoyer
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booksrc/SUMMARY.md
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- [Selective Error Handling](tutorial9.md)
- [ErrorKind to the rescue](tutorial10.md)
- [Debug for the ErrorKind](tutorial11.md)
- [Deref for the ErrorKind](tutorial12.md)
[The End](end.md)

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booksrc/tutorial12.md
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# Deref for the ErrorKind
Because ChainError<T> implements Deref to &T, we can also match on `*e` instead of `e.kind()`.
Because ChainError<T> implements Deref to &T, we can also match on `*e` instead of `e.kind()`
or call a function with `&e`
~~~rust
use crate::chainerror::*;
{{#include ../examples/tutorial12.rs:2:}}