[terts]

Hi! Author here. There's a couple of reasons.

First, this language is syntactically a lot like Rust but semantically quite different. It has no references for example. We're trying to keep it simpler than Rust for our users.

Second, using Rust would require compiling the script with a Rust compiler, which you'd then have to install alongside the application. Roto can be fully compiled by the host application.

I think your approach might be preferred when the application author is also the script author. For example, if you're a game developer who is using a script to quickly prototype a game.

[erlend_sh]

Are you saying Roto has no ambitions to be suitable as a gamedev scripting language?

[terts]

It depends. I'd love to make a prototype using Bevy with Roto. What I'm trying to say is that if you only want something to make Rust compile faster, then Rust might the better option. If you want something that behaves more like a scripting language and you don't mind that is compiled at startup, then Roto might be good for that purpose (with the caveat that there are missing features of course).