Explicit Key Binding should support default hasher in dev_mode

[gupnik]

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Motivation

How is the dev_mode syntax supposed to work with the explicit key binding in eg StorageMap?

I mean something like:

#[pallet::storage]
pub type Baz<T: Config> = StorageMap<Key = T::AccountId, Value = T::Balance>;

Request

Recently, we added the ability to specify hashers as _ in dev_mode, which are replaced by Blake2_128Concat. We should also be able to use a default hasher in dev_mode in case of explicit key binding.

Solution

No response

Are you willing to help with this request?

Yes!