SerializationUtility.GetManagedReferencesWithMissingTypes

描述

返回无法反序列化（由于缺少类型）的托管引用的列表。

此方法返回无法反序列化的 Managed References 对象列表，因为它们的类型丢失。此信息可用于帮助解决丢失的类型问题。

其他资源：HasManagedReferencesWithMissingTypes，ManagedReferenceMissingType。

using System.Collections.Generic;
using System.Text;
using UnityEngine;
using UnityEditor;

public class GetManagedReferencesWithMissingTypesExample
{
    enum ReportFormat { Detailed, ClassList }

    [MenuItem("Example/Report MonoBehaviour Missing SerializeReference Types")]
    static public void ReportMissingTypes()
    {
        ReportMissingTypesOnActiveMonoBehaviours(ReportFormat.ClassList);
    }

    [MenuItem("Example/Report MonoBehaviour Missing SerializeReference Types - Detailed")]
    static public void ReportMissingTypesDetailed()
    {
        ReportMissingTypesOnActiveMonoBehaviours(ReportFormat.Detailed);
    }

    static private void ReportMissingTypesOnActiveMonoBehaviours(ReportFormat reportType)
    {
        var report = new StringBuilder();

        // Visit all the active MonoBehaviours
        var myMonoComponents = Object.FindObjectsOfType<MonoBehaviour>();
        foreach (var monoBehaviour in myMonoComponents)
        {
            ReportReferencesWithMissingTypesOnHost(monoBehaviour, ref report, reportType);
        }

        if (report.Length == 0)
            report.Append("No missing types found");

        Debug.Log(report.ToString());
    }

    static private void ReportReferencesWithMissingTypesOnHost(Object host, ref StringBuilder report, ReportFormat reportType)
    {
        // Report the references that have missing types on an individual MonoBehaviour, ScriptableObject or other host
        if (!SerializationUtility.HasManagedReferencesWithMissingTypes(host))
            return;

        var missingTypes = SerializationUtility.GetManagedReferencesWithMissingTypes(host);

        report.Append(reportType == ReportFormat.Detailed ? "Missing references on " : "Missing classes on ");
        MonoBehaviourDescription(host, ref report);

        if (reportType == ReportFormat.Detailed)
        {
            foreach (var missingType in missingTypes)
            {
                report.Append("\t").AppendFormat("{0} - {1}", missingType.referenceId, MissingClassFullName(missingType));
                if (missingType.serializedData.Length > 0)
                    report.Append("\t").AppendFormat("\n\t\t{0}", missingType.serializedData);
                report.AppendLine();
            }
        }
        else
        {
            // Only report each unique class that is missing, rather than all objects using that class
            var missingClasses = new HashSet<string>();
            foreach (var missingType in missingTypes)
            {
                missingClasses.Add(MissingClassFullName(missingType));
            }

            foreach (var missingClass in missingClasses)
            {
                report.Append("\t").Append(missingClass).AppendLine();
            }
        }
    }

    static private void MonoBehaviourDescription(Object host, ref StringBuilder stringBuilder)
    {
        // Identify the object that has missing types
        stringBuilder.AppendFormat("MonoBehaviour \"{0}\" (Type: {1}, Instance: {2})",
            host.name,
            host.GetType().FullName,
            host.GetInstanceID()).AppendLine();
    }

    static private string MissingClassFullName(ManagedReferenceMissingType missingType)
    {
        var description = new StringBuilder();
        if (missingType.namespaceName.Length > 0)
            description.Append(missingType.namespaceName).Append(".");
        description.AppendFormat("{0}, {1}", missingType.className, missingType.assemblyName);
        return description.ToString();
    }
}