2 ms·
> This is the safe approach. This is the painful approach, which is demonstrated in this very introductory document: let f: File := openFile("test.txt");
by masklinn 4y ago
> This is the safe approach.
This is the painful approach, which is demonstrated in this very introductory document:
let f: File := openFile("test.txt");
let f1: File := writeString(f, "First line");
let f2: File := writeString(f1, "Another line");
...
Foo63 is one of those things I do not miss from Erlang.
> IMHO, it’s one of the worst Rust design decisions and shouldn’t be copied.
100% disagree. It's even more valuable to rust because of things like capture clause patterns.
> People will say they’re too lazy to come up with temporary variable names
No, people will say that most of the time temporary variable names make no sense and add no information. When you have an input of `T: AsRef<U>` and literally the first thing you do is ref' it, there's no value whatsoever to having two different names.
- _dain_ 4y agoBorrowing exists to fix this problem, I believe you can do something like this? let f: File := openFile("filename.txt"); writeString(&!f, "first line"); writeString(&!f, "second line"); writeString(&!f, "third line"); closeFile(f);