Code Inspection and Quick Fix demo code for Rider & Unity

Demo.cs

/*
 * This is Demo for `Code Inspection` and `Quick Fix` in Rider & Unity.
 * Please put this file in Unity project as `Demo.cs` and open with Rider.
 * In this code, there are some problem to fix.
 * `Code Inspection` tells you them and you can fix it with `Quick Fix` so easily.
 *
 * これは、Unity & Riderの`Code Inspection`と`Quick Fix`でも用コードです。
 * このファイルを`Demo.cs`という名前で、Unityプロジェクトに起き、Riderで開いてください。
 * このコードにはいくつか修正しないといけない点があります。
 * `Code Inspection`はその点を教えてくれ、そして`Quick Fix`を使えばとても簡単にそれを修正できます。
 *
 * プレゼン資料はこちら
 * Plesentation Contents
 * https://speakerdeck.com/ryotamurohoshi/riderfalsesusume-an-hariderkokogahao-ki
 */
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.SceneManagement;

namespace Demo
{
    public static class Example
    {
        public static void Step0()
        {
            var monsters = LoadMonsters();
            // Step0
            // QuickFixMe
            var isEmpty = monsters.Count() == 0;
        }

        public static void Step1()
        {
            var monsters = LoadMonsters();
            // Step1
            // QuickFixMe
            var deadCount = monsters.Where(it => it.Hp > 0).Count();
        }

        public static void Step2()
        {
            var myName = "RyotaMurohoshi";
            var level = 31;
            // Step2
            // QuickFixMe
            var message = string.Format("{0} : {1}", myName, level);
        }


        private static IEnumerable<Monster> LoadMonsters()
            => new Monster[0];
    }


    class Rect
    {
        public Rect(int height, int width)
        {
            Height = height;
            Width = width;
        }

        private int Height { get; }
        private int Width { get; }

        public int Area
        {
            // Step3
            // QuickFixMe
            get { return Height * Width; }
        }
    }

    public class Monster
    {
        public int Hp { get; }
    }

    public class Demo : MonoBehaviour
    {
        [SerializeField] private GameObject target;


        // Step4
        // QuickFixMe
        private void Awake()
        {
        }

        private void Start()
        {
            // Step5
            // QuickFixMe
            var mover = new Mover();
        }

        // Step6
        // QuickFixMe
        private void OnCollisionEnter(Collider other)
        {
        }


        void Update()
        {
            Move();
        }

        void Move()
        {
            // Step7
            // QuickFixMe
            var mover = GetComponent<Mover>();
            mover.Move();
        }

        void CalcPositions()
        {
            var forwardPosition = transform.position + Vector3.forward;
            // Step8
            // QuickFixMe
            var backPosition = transform.position + Vector3.back;
        }

        void NullPropagation()
        {
            // Step9
            // QuickFixMe
            Debug.Log(target?.name);
            // 等価じゃない
            Debug.Log(target == null ? null : target.name);
        }
    }
}

Mover.cs

using UnityEngine;

namespace Demo
{
    public class Mover : MonoBehaviour
    {
        [SerializeField] private float speed;

        public void Move()
        {
        }

        public void StartMove()
        {
        }
    }
}