Use action function as handleAction(s) type param

[nikita-graf]

This PR allows to use actions as type parameter for handleAction and handleActions like so:

let increment = createAction('INCREMENT', amount => amount);

const reducer = handleActions({
  [increment]: (state, action) => ({
    counter: state.counter + action.payload
  })
}, { counter: 0 });

handleAction(increment , {
  next(state, action) {...}
  throw(state, action) {...}
});

It prevents from copy&paste action names across modules, allows to use autocomplete in IDE.

[julien-f]

IMHO, it should be const instead of let.

[timche]

Yup, please use const here.

[timche]

Currently duplicated with #32, but when the author does not answer there, we can go with this PR. Are you fine with that?

[nikita-graf]

Yes, I'm ok with that. I just want to have this feature merged through this PR or #32, it doesn't matter.

[timche]

Looks like the author of #32 doesn't care anymore of his PR, so we'll go with this one.

[timche]

Can you also provide some tests please?

[nikita-graf]

@timche I've added 2 tests and replaced let with const. Please review it.

[timche]

@nikita-graf Thanks, but This branch has conflicts that must be resolved ;)

[nikita-graf]

Didn't see that, for now it's up to date:smile:

[timche]

Thanks @nikita-graf, merged :)

[nikita-graf]

Great, thanks :)