mirror of
https://github.com/esiur/esiur-dotnet.git
synced 2025-10-30 15:41:35 +00:00
1057 lines
28 KiB
C#
1057 lines
28 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using Esiur.Data;
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using System.Runtime.CompilerServices;
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using System.Reflection;
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using Esiur.Net.IIP;
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using Esiur.Misc;
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using Esiur.Security.Permissions;
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using Esiur.Resource.Template;
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using Esiur.Security.Authority;
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using Esiur.Proxy;
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using Esiur.Core;
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using System.Text.Json;
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using System.ComponentModel.DataAnnotations.Schema;
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using System.Reflection.Emit;
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namespace Esiur.Resource;
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[NotMapped]
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public class Instance
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{
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string name;
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// public int IntVal { get; set; }
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WeakReference<IResource> resource;
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IStore store;
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TypeTemplate template;
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AutoList<IPermissionsManager, Instance> managers;
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public event PropertyModifiedEvent PropertyModified;
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public event EventOccurredEvent EventOccurred;
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public event CustomEventOccurredEvent CustomEventOccurred;
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public event ResourceDestroyedEvent Destroyed;
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bool loading = false;
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//KeyList<string, object> attributes;
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List<ulong?> ages = new();
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List<DateTime?> modificationDates = new();
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private ulong instanceAge;
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private byte hops;
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private DateTime instanceModificationDate;
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uint id;
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public KeyList<string, object> Variables { get; } = new KeyList<string, object>();
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/// <summary>
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/// Instance attributes are custom properties associated with the instance, a place to store information by IStore.
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/// </summary>
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//public KeyList<string, object> Attributes
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//{
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// get
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// {
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// return attributes;
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// }
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//}
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public override string ToString()
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{
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return name + " (" + Link + ")";
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}
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public bool RemoveAttributes(string[] attributes = null)
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{
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return false;
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/*
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IResource res;
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if (!resource.TryGetTarget(out res))
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return false;
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return store.RemoveAttributes(res, attributes);
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*/
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/*
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if (attributes == null)
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this.attributes.Clear();
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else
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{
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foreach (var attr in attributes)
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this.attributes.Remove(attr);
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}
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return true;
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*/
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}
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public Map<string, object> GetAttributes(string[] attributes = null)
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{
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// @TODO
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var rt = new Map<string, object>();
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if (attributes != null)
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{
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for (var i = 0; i < attributes.Length; i++)
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{
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var at = template.GetAttributeTemplate(attributes[i]);
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if (at != null)
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{
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}
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}
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}
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return rt;
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/*
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var st = new Structure();
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if (attributes == null)
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{
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var clone = this.attributes.Keys.ToList();
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clone.Add("managers");
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attributes = clone.ToArray();// this.attributes.Keys.ToList().Add("managers");
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}
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foreach (var attr in attributes)
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{
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if (attr == "name")
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st["name"] = this.name;
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else if (attr == "managers")
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{
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var mngrs = new List<Structure>();
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foreach (var manager in this.managers)
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mngrs.Add(new Structure()
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{
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["type"] = manager.GetType().FullName + "," + manager.GetType().GetTypeInfo().Assembly.GetName().Name,
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["settings"] = manager.Settings
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});
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st["managers"] = mngrs.ToArray();
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}
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else if (attr == "parents")
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{
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//st["parents"] = parents.ToArray();
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}
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else if (attr == "children")
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{
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//st["children"] = children.ToArray();
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}
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else if (attr == "childrenCount")
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{
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//st["childrenCount"] = children.Count;
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}
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else if (attr == "type")
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{
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st["type"] = resource.GetType().FullName;
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}
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else
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st[attr] = this.attributes[attr];
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}
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return st;
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*/
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}
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public bool SetAttributes(Map<string, object> attributes, bool clearAttributes = false)
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{
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// @ TODO
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IResource res;
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if (resource.TryGetTarget(out res))
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{
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foreach (var kv in attributes)
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{
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var at = template.GetAttributeTemplate(kv.Key);
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if (at != null)
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if (at.PropertyInfo.CanWrite)
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at.PropertyInfo.SetValue(res, DC.CastConvert(kv.Value, at.PropertyInfo.PropertyType));
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}
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}
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return true;
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/*
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try
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{
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if (clearAttributes)
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this.attributes.Clear();
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foreach (var attr in attributes)
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if (attr.Key == "name")
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this.name = attr.Value as string;
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else if (attr.Key == "managers")
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{
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this.managers.Clear();
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var mngrs = attr.Value as object[];
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foreach (var mngr in mngrs)
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{
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var m = mngr as Structure;
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var type = Type.GetType(m["type"] as string);
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if (Codec.ImplementsInterface(type, typeof(IPermissionsManager)))
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{
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var settings = m["settings"] as Structure;
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var manager = Activator.CreateInstance(type) as IPermissionsManager;
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IResource res;
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if (this.resource.TryGetTarget(out res))
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{
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manager.Initialize(settings, res);
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this.managers.Add(manager);
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}
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}
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else
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return false;
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}
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}
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else
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{
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this.attributes[attr.Key] = attr.Value;
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}
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}
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catch
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{
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return false;
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}
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return true;
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*/
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}
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/*
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public Structure GetAttributes()
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{
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var st = new Structure();
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foreach (var a in attributes.Keys)
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st[a] = attributes[a];
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st["name"] = name;
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var mngrs = new List<Structure>();
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foreach (var manager in managers)
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{
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var mngr = new Structure();
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mngr["settings"] = manager.Settings;
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mngr["type"] = manager.GetType().FullName;
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mngrs.Add(mngr);
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}
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st["managers"] = mngrs;
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return st;
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}*/
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/// <summary>
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/// Get the age of a given property index.
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/// </summary>
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/// <param name="index">Zero-based property index.</param>
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/// <returns>Age.</returns>
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public ulong? GetAge(byte index)
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{
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if (index < ages.Count)
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return ages[index];
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else
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return 0;
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}
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/// <summary>
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/// Set the age of a property.
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/// </summary>
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/// <param name="index">Zero-based property index.</param>
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/// <param name="value">Age.</param>
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public void SetAge(byte index, ulong? value)
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{
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if (index < ages.Count)
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{
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ages[index] = value;
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if (value > instanceAge)
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instanceAge = (ulong)value;
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}
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}
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/// <summary>
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/// Set the modification date of a property.
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/// </summary>
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/// <param name="index">Zero-based property index.</param>
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/// <param name="value">Modification date.</param>
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public void SetModificationDate(byte index, DateTime? value)
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{
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if (index < modificationDates.Count)
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{
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modificationDates[index] = value;
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if (value > instanceModificationDate)
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instanceModificationDate = (DateTime)value;
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}
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}
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/// <summary>
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/// Get modification date of a specific property.
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/// </summary>
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/// <param name="index">Zero-based property index</param>
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/// <returns>Modification date.</returns>
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public DateTime? GetModificationDate(byte index)
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{
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if (index < modificationDates.Count)
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return modificationDates[index];
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else
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return DateTime.MinValue;
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}
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/// <summary>
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/// Load property value (used by stores)
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/// </summary>
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/// <param name="name">Property name</param>
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/// <param name="age">Property age</param>
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/// <param name="value">Property value</param>
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/// <returns></returns>
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public bool LoadProperty(string name, ulong? age, DateTime? modificationDate, object value)
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{
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IResource res;
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if (!resource.TryGetTarget(out res))
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return false;
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var pt = template.GetPropertyTemplateByName(name);
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if (pt == null)
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return false;
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/*
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#if NETSTANDARD
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var pi = resource.GetType().GetTypeInfo().GetProperty(name, new[] { resource.GetType() });
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#else
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var pi = resource.GetType().GetProperty(pt.Name);
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#endif
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*/
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if (pt.PropertyInfo.PropertyType.IsGenericType
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&& pt.PropertyInfo.PropertyType.GetGenericTypeDefinition() == typeof(PropertyContext<>))
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return false;
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if (pt.PropertyInfo.CanWrite)
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{
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try
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{
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loading = true;
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pt.PropertyInfo.SetValue(res, DC.CastConvert(value, pt.PropertyInfo.PropertyType));
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}
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catch (Exception ex)
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{
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//Console.WriteLine(resource.ToString() + " " + name);
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Global.Log(ex);
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}
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loading = false;
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}
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SetAge(pt.Index, age);
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SetModificationDate(pt.Index, modificationDate);
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return true;
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}
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/// <summary>
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/// Age of the instance, incremented by 1 in every modification.
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/// </summary>
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public ulong Age
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{
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get { return instanceAge; }
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internal set { instanceAge = value; }
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}
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/// <summary>
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/// Number of nodes to reach the original resource.
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/// </summary>
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public byte Hops
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{
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get { return hops; }
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internal set { hops = value; }
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}
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/// <summary>
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/// Last modification date.
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/// </summary>
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public DateTime? ModificationDate
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{
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get
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{
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return instanceModificationDate;
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}
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}
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/// <summary>
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/// Instance Id.
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/// </summary>
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public uint Id
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{
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get { return id; }
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}
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/// <summary>
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/// Import properties from bytes array.
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/// </summary>
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/// <param name="properties"></param>
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/// <returns></returns>
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public bool Deserialize(PropertyValue[] properties)
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{
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for (byte i = 0; i < properties.Length; i++)
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{
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var pt = this.template.GetPropertyTemplateByIndex(i);
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if (pt != null)
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{
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var pv = properties[i];
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LoadProperty(pt.Name, pv.Age, pv.Date, pv.Value);
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}
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}
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return true;
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}
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public string ToJson()
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{
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IResource res;
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if (resource.TryGetTarget(out res))
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return JsonSerializer.Serialize(res, Global.SerializeOptions);
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else
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return null;
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}
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/// <summary>
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/// Export all properties with ResourceProperty attributed as bytes array.
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/// </summary>
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/// <returns></returns>
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public PropertyValue[] Serialize()
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{
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var props = new List<PropertyValue>();
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foreach (var pt in template.Properties)
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{
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IResource res;
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if (resource.TryGetTarget(out res))
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{
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var rt = pt.PropertyInfo.GetValue(res, null);
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props.Add(new PropertyValue(rt, ages[pt.Index], modificationDates[pt.Index]));
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}
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}
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return props.ToArray();
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}
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/// <summary>
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/// Export all properties with ResourceProperty attributed as bytes array after a specific age.
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/// </summary>
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/// <returns></returns>
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public Map<byte, PropertyValue> SerializeAfter(ulong age = 0)
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{
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var props = new Map<byte, PropertyValue>();
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foreach (var pt in template.Properties)
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{
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IResource res;
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if (resource.TryGetTarget(out res))
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{
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if (res.Instance.GetAge(pt.Index) > age)
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{
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var rt = pt.PropertyInfo.GetValue(res, null);
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props.Add(pt.Index,
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new PropertyValue(rt,
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ages[pt.Index],
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modificationDates[pt.Index]));
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}
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}
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}
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return props;
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}
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/*
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public bool Deserialize(byte[] data, uint offset, uint length)
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{
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var props = Codec.ParseValues(data, offset, length);
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Deserialize(props);
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return true;
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}
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*/
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/*
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public byte[] Serialize(bool includeLength = false, DistributedConnection sender = null)
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{
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//var bl = new BinaryList();
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List<object> props = new List<object>();
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foreach (var pt in template.Properties)
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{
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var pi = resource.GetType().GetProperty(pt.Name);
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var rt = pi.GetValue(resource, null);
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// this is a cool hack to let the property know the sender
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if (rt is Func<DistributedConnection, object>)
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rt = (rt as Func<DistributedConnection, object>)(sender);
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props.Add(rt);
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}
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if (includeLength)
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{
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return Codec.Compose(props.ToArray(), false);
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}
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else
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{
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var rt = Codec.Compose(props.ToArray(), false);
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return DC.Clip(rt, 4, (uint)(rt.Length - 4));
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}
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}
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public byte[] StorageSerialize()
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{
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var props = new List<object>();
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foreach(var pt in template.Properties)
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{
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if (!pt.Storable)
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continue;
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var pi = resource.GetType().GetProperty(pt.Name);
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if (!pi.CanWrite)
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continue;
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var rt = pi.GetValue(resource, null);
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props.Add(rt);
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}
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return Codec.Compose(props.ToArray(), false);
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}
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*/
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/// <summary>
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/// If True, the instance can be stored to disk.
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/// </summary>
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/// <returns></returns>
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public bool IsStorable()
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{
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#if NETSTANDARD
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var attrs = resource.GetType().GetTypeInfo().GetCustomAttributes(typeof(Storable), true).ToArray();
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#else
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var attrs = resource.GetType().GetCustomAttributes(typeof(Storable), true);
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#endif
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return attrs.Length > 0;
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}
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|
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internal void EmitModification(PropertyTemplate pt, object value)
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{
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IResource res;
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if (this.resource.TryGetTarget(out res))
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{
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instanceAge++;
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var now = DateTime.UtcNow;
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ages[pt.Index] = instanceAge;
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modificationDates[pt.Index] = now;
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if (pt.Recordable)
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{
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store.Record(res, pt.Name, value, ages[pt.Index], now);
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}
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else //if (pt.Storage == StorageMode.Recordable)
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{
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store.Modify(res, pt.Name, value, ages[pt.Index], now);
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}
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//ResourceModified?.Invoke(res, pt.Name, value);
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PropertyModified?.Invoke(new PropertyModificationInfo(res, pt, value, instanceAge));
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}
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}
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/// <summary>
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/// Notify listeners that a property was modified.
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/// </summary>
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/// <param name="propertyName"></param>
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/// <param name="newValue"></param>
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/// <param name="oldValue"></param>
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public void Modified([CallerMemberName] string propertyName = "")
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{
|
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if (loading)
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return;
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|
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object value;
|
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if (GetPropertyValue(propertyName, out value))
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{
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var pt = template.GetPropertyTemplateByName(propertyName);
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EmitModification(pt, value);
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}
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}
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// internal void EmitResourceEvent(string name, string[] users, DistributedConnection[] connections, object[] args)
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|
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internal void EmitCustomResourceEvent(object issuer, Func<Session, bool> receivers, EventTemplate eventTemplate, object value)
|
|
{
|
|
IResource res;
|
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if (this.resource.TryGetTarget(out res))
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|
{
|
|
CustomEventOccurred?.Invoke(new CustomEventOccurredInfo(res, eventTemplate, receivers, issuer, value));
|
|
}
|
|
}
|
|
|
|
internal void EmitResourceEvent(EventTemplate eventTemplate, object value)
|
|
{
|
|
IResource res;
|
|
if (this.resource.TryGetTarget(out res))
|
|
{
|
|
EventOccurred?.Invoke(new EventOccurredInfo(res, eventTemplate, value));
|
|
}
|
|
}
|
|
|
|
internal void EmitResourceEventByIndex(byte eventIndex, object value)
|
|
{
|
|
IResource res;
|
|
if (this.resource.TryGetTarget(out res))
|
|
{
|
|
var eventTemplate = template.GetEventTemplateByIndex(eventIndex);
|
|
EventOccurred?.Invoke(new EventOccurredInfo(res, eventTemplate, value));
|
|
}
|
|
}
|
|
|
|
internal void EmitCustomResourceEventByIndex(object issuer, Func<Session, bool> receivers, byte eventIndex, object value)
|
|
{
|
|
IResource res;
|
|
if (this.resource.TryGetTarget(out res))
|
|
{
|
|
var eventTemplate = template.GetEventTemplateByIndex(eventIndex);
|
|
CustomEventOccurred?.Invoke(new CustomEventOccurredInfo(res, eventTemplate, receivers, issuer, value));
|
|
}
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// Get the value of a given property by name.
|
|
/// </summary>
|
|
/// <param name="name">Property name</param>
|
|
/// <param name="value">Output value</param>
|
|
/// <returns>True, if the resource has the property.</returns>
|
|
public bool GetPropertyValue(string name, out object value)
|
|
{
|
|
/*
|
|
#if NETSTANDARD
|
|
PropertyInfo pi = resource.GetType().GetTypeInfo().GetProperty(name, BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
|
|
|
|
#else
|
|
PropertyInfo pi = resource.GetType().GetProperty(name, BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
|
|
#endif
|
|
*/
|
|
|
|
var pt = template.GetPropertyTemplateByName(name);
|
|
|
|
if (pt != null && pt.PropertyInfo != null)
|
|
{
|
|
/*
|
|
#if NETSTANDARD
|
|
object[] ca = pi.GetCustomAttributes(typeof(ResourceProperty), false).ToArray();
|
|
|
|
#else
|
|
object[] ca = pi.GetCustomAttributes(typeof(ResourceProperty), false);
|
|
#endif
|
|
|
|
if (ca.Length > 0)
|
|
{
|
|
value = pi.GetValue(resource, null);
|
|
//if (value is Func<IManager, object>)
|
|
// value = (value as Func<IManager, object>)(sender);
|
|
return true;
|
|
}
|
|
*/
|
|
|
|
IResource res;
|
|
if (resource.TryGetTarget(out res))
|
|
value = pt.PropertyInfo.GetValue(res, null);
|
|
else
|
|
{
|
|
value = null;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
value = null;
|
|
return false;
|
|
}
|
|
|
|
|
|
/*
|
|
public bool Inherit
|
|
{
|
|
get { return inherit; }
|
|
}*/
|
|
|
|
/// <summary>
|
|
/// List of parents.
|
|
/// </summary>
|
|
//public AutoList<IResource, Instance> Parents => parents;
|
|
|
|
/// <summary>
|
|
/// Store responsible for creating and keeping the resource.
|
|
/// </summary>
|
|
public IStore Store
|
|
{
|
|
get { return store; }
|
|
}
|
|
|
|
public bool IsDestroyed { get; private set; }
|
|
|
|
/// <summary>
|
|
/// List of children.
|
|
/// </summary>
|
|
// public AutoList<IResource, Instance> Children => children;
|
|
|
|
/// <summary>
|
|
/// The unique and permanent link to the resource.
|
|
/// </summary>
|
|
public string Link
|
|
{
|
|
get
|
|
{
|
|
IResource res;
|
|
if (this.resource.TryGetTarget(out res))
|
|
{
|
|
if (res == res.Instance.store)
|
|
return name; // root store
|
|
else
|
|
return store.Instance.name + "/" + store.Link(res);
|
|
}
|
|
else
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public AsyncBag<T> Children<T>(string name = null) where T : IResource
|
|
{
|
|
IResource res;
|
|
if (this.resource.TryGetTarget(out res))
|
|
{
|
|
return store.Children<T>(res, name);
|
|
}
|
|
else
|
|
return new AsyncBag<T>(null);
|
|
}
|
|
|
|
public AsyncBag<T> Parents<T>(string name = null) where T : IResource
|
|
{
|
|
IResource res;
|
|
if (this.resource.TryGetTarget(out res))
|
|
{
|
|
return store.Parents<T>(res, name);
|
|
}
|
|
else
|
|
return new AsyncBag<T>(default(T[]));
|
|
}
|
|
|
|
/*
|
|
{
|
|
get
|
|
{
|
|
if (this.store != null)
|
|
return this.store.Link(this.resource);
|
|
else
|
|
{
|
|
var l = new List<string>();
|
|
//l.Add(name);
|
|
|
|
var p = this.resource; // parents.First();
|
|
|
|
while (true)
|
|
{
|
|
l.Insert(0, p.Instance.name);
|
|
|
|
if (p.Instance.parents.Count == 0)
|
|
break;
|
|
|
|
p = p.Instance.parents.First();
|
|
}
|
|
|
|
return String.Join("/", l.ToArray());
|
|
}
|
|
}
|
|
}
|
|
*
|
|
*/
|
|
|
|
/// <summary>
|
|
/// Instance name.
|
|
/// </summary>
|
|
public string Name
|
|
{
|
|
get { return name; }
|
|
set { name = value; }
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// Resource managed by this instance.
|
|
/// </summary>
|
|
public IResource Resource
|
|
{
|
|
get
|
|
{
|
|
IResource res;
|
|
if (this.resource.TryGetTarget(out res))
|
|
{
|
|
return res;
|
|
}
|
|
else
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Resource template describes the properties, functions and events of the resource.
|
|
/// </summary>
|
|
public TypeTemplate Template
|
|
{
|
|
get { return template; }
|
|
|
|
/*
|
|
internal set
|
|
{
|
|
template = Warehouse.GetTemplate(resource.GetType());
|
|
|
|
// set ages
|
|
for (byte i = 0; i < template.Properties.Length; i++)
|
|
{
|
|
ages.Add(0);
|
|
modificationDates.Add(DateTime.MinValue);
|
|
}
|
|
}
|
|
*/
|
|
}
|
|
|
|
/// <summary>
|
|
/// Check for permission.
|
|
/// </summary>
|
|
/// <param name="session">Caller sessions.</param>
|
|
/// <param name="action">Action type</param>
|
|
/// <param name="member">Function, property or event to check for permission.</param>
|
|
/// <param name="inquirer">Permission inquirer.</param>
|
|
/// <returns>Ruling.</returns>
|
|
public Ruling Applicable(Session session, ActionType action, MemberTemplate member, object inquirer = null)
|
|
{
|
|
IResource res;
|
|
if (this.resource.TryGetTarget(out res))
|
|
{
|
|
//return store.Applicable(res, session, action, member, inquirer);
|
|
|
|
foreach (IPermissionsManager manager in managers)
|
|
{
|
|
var r = manager.Applicable(res, session, action, member, inquirer);
|
|
if (r != Ruling.DontCare)
|
|
return r;
|
|
}
|
|
|
|
}
|
|
|
|
return Ruling.DontCare;
|
|
|
|
}
|
|
|
|
/// <summary>
|
|
/// Execution managers.
|
|
/// </summary>
|
|
public AutoList<IPermissionsManager, Instance> Managers => managers;
|
|
|
|
public readonly Warehouse Warehouse;
|
|
/// <summary>
|
|
/// Create new instance.
|
|
/// </summary>
|
|
/// <param name="id">Instance Id.</param>
|
|
/// <param name="name">Name of the instance.</param>
|
|
/// <param name="resource">Resource to manage.</param>
|
|
/// <param name="store">Store responsible for the resource.</param>
|
|
public Instance(Warehouse warehouse, uint id, string name, IResource resource, IStore store, TypeTemplate customTemplate = null, ulong age = 0)
|
|
{
|
|
this.Warehouse = warehouse;
|
|
this.store = store;
|
|
this.resource = new WeakReference<IResource>(resource);
|
|
this.id = id;
|
|
this.name = name ?? "";
|
|
this.instanceAge = age;
|
|
|
|
//this.attributes = new KeyList<string, object>(this);
|
|
//children = new AutoList<IResource, Instance>(this);
|
|
//parents = new AutoList<IResource, Instance>(this);
|
|
managers = new AutoList<IPermissionsManager, Instance>(this);
|
|
//children.OnAdd += Children_OnAdd;
|
|
//children.OnRemoved += Children_OnRemoved;
|
|
//parents.OnAdd += Parents_OnAdd;
|
|
//parents.OnRemoved += Parents_OnRemoved;
|
|
|
|
resource.OnDestroy += Resource_OnDestroy;
|
|
|
|
if (customTemplate != null)
|
|
this.template = customTemplate;
|
|
else
|
|
this.template = Warehouse.GetTemplateByType(resource.GetType());
|
|
|
|
// set ages
|
|
for (byte i = 0; i < template.Properties.Length; i++)
|
|
{
|
|
ages.Add(0);
|
|
modificationDates.Add(DateTime.MinValue);
|
|
}
|
|
|
|
|
|
// connect events
|
|
if (!(resource is DistributedResource))
|
|
{
|
|
|
|
Type t = ResourceProxy.GetBaseType(resource);
|
|
|
|
var events = t.GetTypeInfo().GetEvents(BindingFlags.Public | BindingFlags.Instance);
|
|
|
|
var emitEventByIndexMethod = GetType().GetMethod("EmitResourceEventByIndex", BindingFlags.Instance | BindingFlags.NonPublic);
|
|
var emitCustomEventByIndexMethod = GetType().GetMethod("EmitCustomResourceEventByIndex", BindingFlags.Instance | BindingFlags.NonPublic);
|
|
|
|
foreach (var evt in template.Events)
|
|
{
|
|
|
|
if (evt.EventInfo == null)
|
|
continue;
|
|
|
|
var eventGenericType = evt.EventInfo.EventHandlerType.GetGenericTypeDefinition();
|
|
|
|
if (eventGenericType == typeof(ResourceEventHandler<>))
|
|
{
|
|
|
|
var dm = new DynamicMethod("_", null,
|
|
new Type[] { typeof(Instance), evt.EventInfo.EventHandlerType.GenericTypeArguments[0] },
|
|
typeof(Instance).Module, true);
|
|
|
|
|
|
var il = dm.GetILGenerator();
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldc_I4, (int)evt.Index);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Box, evt.EventInfo.EventHandlerType.GenericTypeArguments[0]);
|
|
il.Emit(OpCodes.Callvirt, emitEventByIndexMethod);
|
|
il.Emit(OpCodes.Nop);
|
|
il.Emit(OpCodes.Ret);
|
|
|
|
|
|
var proxyDelegate = dm.CreateDelegate(evt.EventInfo.EventHandlerType, this);
|
|
|
|
//ResourceEventHandler<object> proxyDelegate = new ResourceEventHandler<object>((args) => EmitResourceEvent(evt, args));
|
|
evt.EventInfo.AddEventHandler(resource, proxyDelegate);
|
|
|
|
|
|
}
|
|
else if (eventGenericType == typeof(CustomResourceEventHandler<>))
|
|
{
|
|
var dm = new DynamicMethod("_", null,
|
|
new Type[] { typeof(Instance), typeof(object), typeof(Func<Session, bool>),
|
|
evt.EventInfo.EventHandlerType.GenericTypeArguments[0] },
|
|
typeof(Instance).Module, true);
|
|
|
|
|
|
var il = dm.GetILGenerator();
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Ldarg_2);
|
|
il.Emit(OpCodes.Ldc_I4, (int)evt.Index);
|
|
il.Emit(OpCodes.Ldarg_3);
|
|
il.Emit(OpCodes.Box, evt.EventInfo.EventHandlerType.GenericTypeArguments[0]);
|
|
il.Emit(OpCodes.Callvirt, emitCustomEventByIndexMethod);
|
|
il.Emit(OpCodes.Nop);
|
|
il.Emit(OpCodes.Ret);
|
|
|
|
|
|
var proxyDelegate = dm.CreateDelegate(evt.EventInfo.EventHandlerType, this);
|
|
|
|
evt.EventInfo.AddEventHandler(resource, proxyDelegate);
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
|
|
//IQueryable<IResource> Children => store.GetChildren(this);
|
|
|
|
|
|
/*
|
|
* private void Children_OnRemoved(Instance parent, IResource value)
|
|
{
|
|
value.Instance.parents.Remove(resource);
|
|
}
|
|
|
|
private void Children_OnAdd(Instance parent, IResource value)
|
|
{
|
|
if (!value.Instance.parents.Contains(resource))
|
|
value.Instance.parents.Add(resource);
|
|
}
|
|
|
|
private void Parents_OnRemoved(Instance parent, IResource value)
|
|
{
|
|
value.Instance.children.Remove(resource);
|
|
}
|
|
|
|
private void Parents_OnAdd(Instance parent, IResource value)
|
|
{
|
|
if (!value.Instance.children.Contains(resource))
|
|
value.Instance.children.Add(resource);
|
|
}
|
|
*/
|
|
|
|
private void Resource_OnDestroy(object sender)
|
|
{
|
|
IsDestroyed = true;
|
|
Destroyed?.Invoke((IResource)sender);
|
|
}
|
|
}
|