Macro enso_prelude::unreachable_panic

macro_rules! unreachable_panic {
    () => { ... };
    ($msg:tt) => { ... };
}

A macro for use in situations where the code is unreachable.

This macro will panic in debug builds, but in release builds it expands to the unsafe std::hint::unreachable_unchecked() function, which allows the compiler to optimise more.