buildDocs/utils/resolveFunction.js

import { isFunction, isString } from 'lodash';
import { log } from './log';
/**
  * Resolves a function on the current target object. It first will
  * try and resolve on the context object, then the target object,
  * then an error will be thrown if the method can not be resolved.
  * @private
  * @param {Function|string} method The method or method name.
  * @param {Object} [context] The context object to resolve from.
  * @param {Object} [target] The target object to resolve from.
  * @returns {Function} The resolved function.
  */
export function resolveFunction(method, context, target, throwNotFound = true) {
    if (isFunction(method)) {
        return method;
    }
    else if (isString(method)) {
        if (context && isFunction(context[method])) {
            return context[method];
        }
        else if (target && isFunction(target[method])) {
            return target[method];
        }
    }
    if (throwNotFound) {
        throw new ReferenceError(log(`Can not resolve method ${method} on any target Objects`));
    }
}