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110 lines
4.8 KiB
110 lines
4.8 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Runtime.Serialization;
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using System.Security;
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using System.Text;
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namespace System
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{
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// this is literally jus8t the decompilation of Mono's .NET 4 implementation
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/// <summary>Represents a typed weak reference, which references an object while still allowing that object to be reclaimed by garbage collection.</summary>
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/// <typeparam name="T">The type of the object referenced.</typeparam>
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// Token: 0x02000248 RID: 584
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[Serializable]
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public sealed class WeakReference<T> : ISerializable where T : class
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{
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/// <summary>Initializes a new instance of the <see cref="T:System.WeakReference`1" /> class that references the specified object.</summary>
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/// <param name="target">The object to reference, or <see langword="null" />.</param>
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// Token: 0x06001B8A RID: 7050 RVA: 0x00068700 File Offset: 0x00066900
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public WeakReference(T target) : this(target, false)
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{
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}
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/// <summary>Initializes a new instance of the <see cref="T:System.WeakReference`1" /> class that references the specified object and uses the specified resurrection tracking.</summary>
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/// <param name="target">The object to reference, or <see langword="null" />.</param>
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/// <param name="trackResurrection">
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/// <see langword="true" /> to track the object after finalization; <see langword="false" /> to track the object only until finalization.</param>
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// Token: 0x06001B8B RID: 7051 RVA: 0x0006870C File Offset: 0x0006690C
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public WeakReference(T target, bool trackResurrection)
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{
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this.trackResurrection = trackResurrection;
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GCHandleType type = trackResurrection ? GCHandleType.WeakTrackResurrection : GCHandleType.Weak;
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handle = GCHandle.Alloc(target, type);
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}
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// Token: 0x06001B8C RID: 7052 RVA: 0x00068740 File Offset: 0x00066940
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private WeakReference(SerializationInfo info, StreamingContext context)
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{
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if (info == null)
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{
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throw new ArgumentNullException(nameof(info));
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}
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trackResurrection = info.GetBoolean("TrackResurrection");
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object value = info.GetValue("TrackedObject", typeof(T));
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GCHandleType type = trackResurrection ? GCHandleType.WeakTrackResurrection : GCHandleType.Weak;
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handle = GCHandle.Alloc(value, type);
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}
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/// <summary>Populates a <see cref="T:System.Runtime.Serialization.SerializationInfo" /> object with all the data necessary to serialize the current <see cref="T:System.WeakReference`1" /> object.</summary>
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/// <param name="info">An object that holds all the data necessary to serialize or deserialize the current <see cref="T:System.WeakReference`1" /> object.</param>
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/// <param name="context">The location where serialized data is stored and retrieved.</param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="info" /> is <see langword="null" />. </exception>
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// Token: 0x06001B8D RID: 7053 RVA: 0x000687A4 File Offset: 0x000669A4
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[SecurityCritical]
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public void GetObjectData(SerializationInfo info, StreamingContext context)
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{
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if (info == null)
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{
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throw new ArgumentNullException(nameof(info));
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}
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info.AddValue("TrackResurrection", trackResurrection);
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if (handle.IsAllocated)
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{
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info.AddValue("TrackedObject", handle.Target);
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return;
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}
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info.AddValue("TrackedObject", null);
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}
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/// <summary>Sets the target object that is referenced by this <see cref="T:System.WeakReference`1" /> object.</summary>
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/// <param name="target">The new target object.</param>
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// Token: 0x06001B8E RID: 7054 RVA: 0x00068800 File Offset: 0x00066A00
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public void SetTarget(T target)
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{
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handle.Target = target;
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}
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/// <summary>Tries to retrieve the target object that is referenced by the current <see cref="T:System.WeakReference`1" /> object.</summary>
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/// <param name="target">When this method returns, contains the target object, if it is available. This parameter is treated as uninitialized.</param>
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/// <returns>
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/// <see langword="true" /> if the target was retrieved; otherwise, <see langword="false" />.</returns>
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// Token: 0x06001B8F RID: 7055 RVA: 0x00068813 File Offset: 0x00066A13
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public bool TryGetTarget(out T target)
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{
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if (!handle.IsAllocated)
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{
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target = default;
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return false;
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}
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target = (T)handle.Target;
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return target != null;
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}
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/// <summary>Discards the reference to the target that is represented by the current <see cref="T:System.WeakReference`1" /> object.</summary>
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// Token: 0x06001B90 RID: 7056 RVA: 0x00068850 File Offset: 0x00066A50
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~WeakReference()
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{
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handle.Free();
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}
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// Token: 0x04000F59 RID: 3929
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private GCHandle handle;
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// Token: 0x04000F5A RID: 3930
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private bool trackResurrection;
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}
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}
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