ProjectDDD/Packages/com.singularitygroup.hotreload/Runtime/Public/InvokeOnHotReload.cs

using System;
using System.Reflection;

namespace SingularityGroup.HotReload {
    /// <summary>
    /// Methods with this attribute will get invoked after a hot reload
    /// </summary>
    /// <remarks>
    /// The method with this attribute needs to have no parameters.
    /// Further more it needs to either be static or and instance method inside a <see cref="UnityEngine.MonoBehaviour"/>.
    /// For the latter case the method of all instances of the <see cref="UnityEngine.MonoBehaviour"/> will be called.
    /// In case the method has a return value it will be ignored.
    /// </remarks>
    [AttributeUsage(AttributeTargets.Method)]
    public class InvokeOnHotReload : Attribute {
    }

    public class MethodPatch {
	    // Compiled by the Unity Editor. Null for newly added methods.
	    public MethodBase originalMethod;
	    // Method before Hot Reload applied it's patch. Null for newly added methods.
	    public MethodBase previousMethod;
	    // Method generated by Hot Reload.
	    public MethodBase newMethod;

	    public MethodPatch(MethodBase originalMethod, MethodBase previousMethod, MethodBase newMethod) {
		    this.originalMethod = originalMethod;
		    this.previousMethod = previousMethod;
		    this.newMethod = newMethod;
	    }
    }
}