Bagaimanakah Pemulangan Jenis Struktur Dinamik Golang Dapat Meningkatkan Kecekapan Kod Semasa Menguruskan Risiko Keselamatan Jenis?

func (c Helper) Brands() []*models.Brand {
    // Select from rethinkdb and populate models.Brand
    var brands []*models.Brand
    rows.All(&brands)
    return brands
}

func (c Helper) BlogPosts() []*models.Post {
    // Select from rethinkdb and populate models.Post
    var posts []*models.Post
    rows.All(&posts)
    return posts
}

func (c Helper) ReturnModels(modelName string) interface{} {
    // Select from rethinkdb based on modelName and return interface{}
}

package main

import "fmt"

type Post struct {
    Author  string
    Content string
}

type Brand struct {
    Name string
}

var database map[string]interface{}

func init() {
    database = make(map[string]interface{})

    brands := []Brand{
        {Name: "Gucci"},
        {Name: "LV"},
    }
    database["brands"] = brands

    posts := []Post{
        {Author: "J.K.R", Content: "Whatever"},
    }
    database["posts"] = posts
}

func main() {
    fmt.Println("List of Brands:")
    if brands, ok := ReturnModels("brands").([]Brand); ok {
        fmt.Printf("%v", brands)
    }

    fmt.Println("\nList of Posts:")
    if posts, ok := ReturnModels("posts").([]Post); ok {
        fmt.Printf("%v", posts)
    }
}

func ReturnModels(modelName string) interface{} {
    return database[modelName]
}