rust/library
Canop 9b90e1762e add insert and insert_with to Option
This removes a cause of `unwrap` and code complexity.

This allows replacing

```
option_value = Some(build());
option_value.as_mut().unwrap()
```

with

```
option_value.insert(build())
```

or

```
option_value.insert_with(build)
```

It's also useful in contexts not requiring the mutability of the reference.

Here's a typical cache example:

```
let checked_cache = cache.as_ref().filter(|e| e.is_valid());
let content = match checked_cache {
	Some(e) => &e.content,
	None => {
	    cache = Some(compute_cache_entry());
	    // unwrap is OK because we just filled the option
	    &cache.as_ref().unwrap().content
	}
};
```

It can be changed into

```
let checked_cache = cache.as_ref().filter(|e| e.is_valid());
let content = match checked_cache {
	Some(e) => &e.content,
	None => &cache.insert_with(compute_cache_entry).content,
};
```
2020-10-23 11:41:19 +02:00
..
2020-10-15 15:21:12 -04:00
2020-10-23 11:41:19 +02:00
2020-10-21 21:11:11 +01:00
2020-10-01 13:06:22 -04:00
2020-10-09 13:24:05 +02:00