add function to second arg of `createAction` as a ownself reducer process

[nju33]

(createAction as CreateAction<ActionPayload, State>)('foo', (state, payload) => {
  state.val = payload.val;
});

state is Proxy it made by the immer.

[nju33]

import Flux from '@nju33/flux';
import {createStore} from 'redux';

interface AP {
  foo: {
    value: number;
  };
  bar: {
    value: string;
  }
}

const flux = new Flux<AP>(...);

flux.addAction('foo', (state, payload) => {...})
      .addAction('bar', (state, payload) => {...})
      .addAction('baz', (state, payload) => {...});

const store = createStore(flux.store);

const act = flux.act('foo', 'bar');
const actions = act({value: 1), {value: '123'});
// actions = {type: Symbol(), actions: [
//  {type: Symbol(foo), payload: {value: 1}},
//  {type: Symbol(bar), payload: {value: '123'}},
//]}
dispatch(actions);

[nju33]

これでリリース 9939e17