[logicchains]

>Java generics are crippled due to type erasure; Rust and Haskell don't have those limitations.

Both Rusk and Haskell erase types at runtime. The difference is they don't rely on runtime reflection for anything, so it doesn't hurt them.

[roca]

In this context "type erasure" means that Java compiles all instances of a generic method to a single implementation that is oblivious to the type parameters. Thus in Java you can't write "T t = new T()" where T is a generic parameter, because the type-erased code doesn't know what T to create.

In Rust, each instance of a generic function is compiled separately and customized as necessary to the specific type parameters. You can write "let t = T::new();" because the compiler will generate a call to the correct constructor for each instance of the generic code. In this sense, types are NOT erased.