How can I create stub functions?

Question

What's the best way to create a stub function in Rust? Something like:

fn my_method() -> bool {
  return new UnImplementedException() //wrong! But that's close to what I need
}

In C# the methods can return UnImplementedException which is convenient for creating stubs. Of course, in this particular case I could return true or false, but I want the solution that is applicable for any return type.

Answer 1

You want the unimplemented! macro (doc link).

fn my_method() -> bool {
    unimplemented!()
}