sometimes wish rust had reference-counted copy-on-write strings like qt

[mcc@mastodon.social]

sometimes wish rust had reference-counted copy-on-write strings like qt

"you could implement that yourself" yeah i guess but the friction's a bit high

[whitequark@social.treehouse.systems]

@mcc there's Rc::make_mut()

[pkhuong@discuss.systems]

@mcc implement deref str and you get a lot of api surface for free

[mcc@mastodon.social]

@whitequark That's an option…

I guess part of the problem is that in Qt, all the *consumers* of my strings can accept QString, whereas I am uncertain the various things I feed strings to will be able to accept it without cloning. We got used to String and copy.

[whitequark@social.treehouse.systems]

@mcc everything that accepts &str should be able to consume a &Rc<String> I think... you might need to throw in an .as_ref()

[redfire@mastodon.online]

@whitequark @mcc That's a double indirection though, could be better.