Unity中实现判断Missing还是Null

 一：前言

例如脚本丢失，贴图丢失，面板上会显示missing

通过==null判断两者都会返回true，但在有些情况下，需要判断是Missing还是Null，通过try-catch可以判断出具体是Missing还是Null

二：代码实现

public void CheckReference(UnityEngine.Object reference)
{
    try
    {
        var name = reference.name;

    }
    //missing
    catch (MissingReferenceException)
    {
        Debug.LogError("The provided reference is missing!");
    }
    catch (MissingComponentException)
    {
        Debug.LogError("The provided reference is missing!");
    }
    catch (UnassignedReferenceException)
    {
        Debug.LogWarning("The provided reference is null!");
    }
    catch (NullReferenceException)
    {
        Debug.LogWarning("The provided reference is null!");
    }
    catch (ArgumentNullException)
    {
        Debug.LogWarning("The provided reference is null!");
    }
    finally
    {

    }
}