[uecker]

I did not know this was disputed, as even developer surveys in the Rust community highlighted complexity as a concern. But seems it is the overall summary of features that make it complex: lifetime, borrowing, a polymorphic type system, traits, multiple tools to manage lifetimes, macros, proc macros, async, unsafe, panic, unwrap, etc. But I agree it is much cleaner than C++.

[hurril]

Still not picking on C++ here. I would claim that these concepts pretty much all exist in C++ too, but often implicitly so. You would solve them by "braining them", with good rules of thumb, patterns, tests and deep knowledge and skill. In fact, you _have_ to solve them this way.

In Rust the compiler is going to have a problem with your code unless you are explicit about borrowing/ ownership, gcc won't care. Which is the more complex thing there?

Same goes for the polymorphism. Looking at languages without parametric polymorphism, you instead see casts and inheritance trees. Not picking on old Java here, but is this more or less complex?

Let's talk some about unsafe as well. In C or C++, for instance, there is a global unsafe surrounding all the code, so if someone has problem with unsafe, why would they pick on Rust where "unsafety" is optional?

Same goes for unwrap. Unwrap is basically a deref combined with a _safe_ crash if the deref was not successful at runtime. Do that in an unsafe language and you have an access violation best case. Or just silent corruption. Which is more complex?

[whytevuhuni]

I'm a really big fan of Rust, but I have to challenge this, GP was clearly talking about the complexity of the language itself, and that one is high.

Extra features and extra static checking add complexity. Extra complexity in the language can make simple programs harder, and they make complex programs easier to code and maintain, like you said.

However, nobody will ever be able to make a Rust equivalent of TinyCC, the language's rules are insanely complex, especially for things like GATs and the other tricky concepts it's trying to tackle.