Jan Tříska

Bug with adding and removing `nil`

3

There is a problem with the following: ```clojure (require '[data.deque :as dq]) (assert (= (list 2 nil) (-> (dq/deque) (dq/add-first nil) (dq/add-first nil) (dq/add-first 2) dq/remove-last seq))) ``` Interesting is...

Can we include something like [frequency](https://hackage.haskell.org/package/QuickCheck-2.14.2/docs/Test-QuickCheck.html#v:frequency) from Haskell's QuickCheck? It will generalize [this pattern](https://github.com/BurntSushi/quickcheck/blob/master/src/arbitrary.rs#L632) and make it more convenient to use, for example: ```rust g.choose_weighted(&[ (10, g.gen_range(0..0xB0) as u8 as...