RequireAttributeUsagesAttribute
Only allowed on attribute types. If the attribute type is marked, then so too will all CustomAttributes of that type.
Read time 3 minutesLast updated a month ago
Definition
- Type: Class
- Namespace: UnityEngine.Scripting
- Assembly: Unity.Scripting
- Inherits from: Attribute
[AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]public class RequireAttributeUsagesAttribute : Attribute
Remarks
Note that Low and Medium Managed Stripping Levels do not remove any CustomAttributes.
Examples
using System;using UnityEngine;using UnityEngine.Scripting;public class NewBehaviourScript : MonoBehaviour{ void Start() { var f = new Foo(); foreach (var attr in f.GetType().CustomAttributes) { if (attr.AttributeType == typeof(TypeUsedAttribute)) { Debug.Log(attr.AttributeType); } } }}[TypeUsed] // Will survive because TypeUsedAttribute is used[Required] // Will survive because RequiredAttribute has the attribute [RequireAttributeUsages][UnusedAndNotRequiredAttribute] // Is considered valid for managed code stripping to removeclass Foo{}class TypeUsedAttribute : Attribute{}[RequireAttributeUsages]class RequiredAttribute : Attribute{}class UnusedAndNotRequiredAttribute : Attribute{}