Version: 2023.2
语言: 中文

TypeCache

class in UnityEditor

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描述

Provides methods for fast type extraction from assemblies loaded into the Unity Domain.

Use TypeCache to access attributes and derived types information. This cache allows arbitrary Editor code to achieve better performance, compared to using System.Reflection, by leveriging a native cached type information.

常见用例是在构建或扩展 Unity 编辑器时提取用特定属性标记的类型或用于扩展或实现特定类型的类。 在当前域中迭代类型的操作通常很慢，速度与类型数成线性关系。

To speed up type extraction, the Editor builds an acceleration table, on the native side, that contains information about type attributes and derived classes and interfaces. 

using UnityEditor;
using System;
using System.Collections.Generic;
using System.Linq;

public class VolumeComponent {}

public class Example
{
    static List<Type> s_VolumeComponents;
    static Example()
    {
        s_VolumeComponents = TypeCache.GetTypesDerivedFrom<VolumeComponent>().ToList();
    }
}

静态函数

GetFieldsWithAttributeRetrieves an unordered collection of fields marked with the T attribute.
GetMethodsWithAttributeRetrieves an unordered collection of methods marked with the T attribute.
GetTypesDerivedFromRetrieves an unordered collection of types derived from the T type.
GetTypesWithAttributeRetrieves an unordered collection of types marked with the T attribute.

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