dva-core/src/getReducer.js

The core lightweight library for dva, based on redux and redux-saga.

import defaultHandleActions from './handleActions';

export default function getReducer(reducers, state, handleActions) {
  // Support reducer enhancer
  // e.g. reducers: [realReducers, enhancer]
  if (Array.isArray(reducers)) {
    return reducers[1]((handleActions || defaultHandleActions)(reducers[0], state));
  } else {
    return (handleActions || defaultHandleActions)(reducers || {}, state);
  }
}