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Move parts of delegate to shared partition #23552
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
| // See the LICENSE file in the project root for more information. | ||
|
|
||
| using System.Reflection; | ||
| using System.Runtime.CompilerServices; | ||
| using System.Runtime.Serialization; | ||
|
|
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| namespace System | ||
| { | ||
| public abstract partial class Delegate : ICloneable, ISerializable | ||
| { | ||
| private Delegate() | ||
| { | ||
| } | ||
|
|
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| public virtual object Clone() => MemberwiseClone(); | ||
|
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| public static Delegate Combine(Delegate a, Delegate b) | ||
| { | ||
| if (a is null) | ||
| return b; | ||
|
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| return a.CombineImpl(b); | ||
| } | ||
|
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| public static Delegate Combine(params Delegate[] delegates) | ||
| { | ||
| if (delegates is null || delegates.Length == 0) | ||
| return null; | ||
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| Delegate d = delegates [0]; | ||
| for (int i = 1; i < delegates.Length; i++) | ||
| d = Combine(d, delegates[i]); | ||
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| return d; | ||
| } | ||
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| protected virtual Delegate CombineImpl(Delegate d) => throw new MulticastNotSupportedException(SR.Multicast_Combine); | ||
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| // V2 api: Creates open or closed delegates to static or instance methods - relaxed signature checking allowed. | ||
| public static Delegate CreateDelegate(Type type, object firstArgument, MethodInfo method) => CreateDelegate(type, firstArgument, method, throwOnBindFailure: true); | ||
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| // V1 api: Creates open delegates to static or instance methods - relaxed signature checking allowed. | ||
| public static Delegate CreateDelegate(Type type, MethodInfo method) => CreateDelegate(type, method, throwOnBindFailure: true); | ||
|
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| // V1 api: Creates closed delegates to instance methods only, relaxed signature checking disallowed. | ||
| public static Delegate CreateDelegate(Type type, object target, string method) => CreateDelegate(type, target, method, ignoreCase: false, throwOnBindFailure: true); | ||
| public static Delegate CreateDelegate(Type type, object target, string method, bool ignoreCase) => CreateDelegate(type, target, method, ignoreCase, throwOnBindFailure: true); | ||
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| // V1 api: Creates open delegates to static methods only, relaxed signature checking disallowed. | ||
| public static Delegate CreateDelegate(Type type, Type target, string method) => CreateDelegate(type, target, method, ignoreCase: false, throwOnBindFailure: true); | ||
| public static Delegate CreateDelegate(Type type, Type target, string method, bool ignoreCase) => CreateDelegate(type, target, method, ignoreCase, throwOnBindFailure: true); | ||
|
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| public object DynamicInvoke(params object[] args) | ||
| { | ||
| return DynamicInvokeImpl(args); | ||
| } | ||
|
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| public virtual Delegate[] GetInvocationList() => new Delegate[] { this }; | ||
|
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| public virtual void GetObjectData(SerializationInfo info, StreamingContext context) => throw new PlatformNotSupportedException(); | ||
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| public MethodInfo Method => GetMethodImpl(); | ||
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| protected virtual Delegate RemoveImpl(Delegate d) => d.Equals(this) ? null : this; | ||
|
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| public static Delegate Remove(Delegate source, Delegate value) | ||
| { | ||
| if (source == null) | ||
| return null; | ||
|
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| if (value == null) | ||
| return source; | ||
|
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| if (!InternalEqualTypes(source, value)) | ||
| throw new ArgumentException(SR.Arg_DlgtTypeMis); | ||
|
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| return source.RemoveImpl(value); | ||
| } | ||
|
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| public static Delegate RemoveAll(Delegate source, Delegate value) | ||
| { | ||
| Delegate newDelegate = null; | ||
|
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| do | ||
| { | ||
| newDelegate = source; | ||
| source = Remove(source, value); | ||
| } | ||
| while (newDelegate != source); | ||
|
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| return newDelegate; | ||
| } | ||
|
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| // Force inline as the true/false ternary takes it above ALWAYS_INLINE size even though the asm ends up smaller | ||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public static bool operator ==(Delegate d1, Delegate d2) | ||
| { | ||
| // Test d2 first to allow branch elimination when inlined for null checks (== null) | ||
| // so it can become a simple test | ||
| if (d2 is null) | ||
| { | ||
| // return true/false not the test result https://github.com/dotnet/coreclr/issues/914 | ||
| return (d1 is null) ? true : false; | ||
| } | ||
|
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| return ReferenceEquals(d2, d1) || d2.Equals((object)d1); | ||
| } | ||
|
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| // Force inline as the true/false ternary takes it above ALWAYS_INLINE size even though the asm ends up smaller | ||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public static bool operator !=(Delegate d1, Delegate d2) | ||
| { | ||
| // Test d2 first to allow branch elimination when inlined for not null checks (!= null) | ||
| // so it can become a simple test | ||
| if (d2 is null) | ||
| { | ||
| // return true/false not the test result https://github.com/dotnet/coreclr/issues/914 | ||
| return (d1 is null) ? false : true; | ||
| } | ||
|
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| return ReferenceEquals(d2, d1) ? false : !d2.Equals(d1); | ||
| } | ||
| } | ||
| } | ||
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Missing license header.