playtest-unity/playtest/Library/PackageCache/com.unity.ugui@1.0.0/Tests/Runtime/Util/PrivateFieldSetter.cs

56 lines
1.6 KiB
C#

using System;
using System.Reflection;
namespace UnityEngine.UI.Tests
{
class PrivateFieldSetter<T> : IDisposable
{
private object m_Obj;
private FieldInfo m_FieldInfo;
private object m_OldValue;
public PrivateFieldSetter(object obj, string field, object value)
{
m_Obj = obj;
m_FieldInfo = typeof(T).GetField(field, BindingFlags.NonPublic | BindingFlags.Instance);
m_OldValue = m_FieldInfo.GetValue(obj);
m_FieldInfo.SetValue(obj, value);
}
public void Dispose()
{
m_FieldInfo.SetValue(m_Obj, m_OldValue);
}
}
static class PrivateStaticField
{
public static T GetValue<T>(Type staticType, string fieldName)
{
var type = staticType;
FieldInfo field = null;
while (field == null && type != null)
{
field = type.GetField(fieldName, BindingFlags.Static | BindingFlags.NonPublic);
type = type.BaseType;
}
return (T)field.GetValue(null);
}
}
static class PrivateField
{
public static T GetValue<T>(this object o, string fieldName)
{
var type = o.GetType();
FieldInfo field = null;
while (field == null && type != null)
{
field = type.GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic);
type = type.BaseType;
}
return field != null ? (T)field.GetValue(o) : default(T);
}
}
}