Rely on PGO for isinst/castclass #65922
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,214 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
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| using System; | ||
| using System.Collections.Generic; | ||
| using System.Runtime.CompilerServices; | ||
| using System.Threading; | ||
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| public interface IInterface { } | ||
| public interface IGenericInterface<T> { } | ||
| public class ClassA : IInterface { } | ||
| public class ClassB : ClassA { } | ||
| public class ClassC { } | ||
| public struct GenericStruct<T> : IGenericInterface<T> { } | ||
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| public class Program | ||
| { | ||
| // 1. Cast to Class | ||
| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static ClassA CastToClassA(object o) => (ClassA)o; | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static GenericStruct<T> CastToGenericStruct<T>(object o) => (GenericStruct<T>)o; | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static int[] CastToArray(object o) => (int[])o; | ||
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| // 2. Is Instance of Class | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static bool IsClassA(object o) => o is ClassA; | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static bool IsGenericStruct<T>(object o) => o is GenericStruct<T>; | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static bool IsArray(object o) => o is int[]; | ||
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| // 3. Is Instance of Interface | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static bool IsIInterface(object o) => o is IInterface; | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static bool IsGenericInterface<T>(object o) => o is IGenericInterface<T>; | ||
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| // 4. Cast to Interface | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static IInterface CastToIInterface(object o) => (IInterface)o; | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static IGenericInterface<T> CastToGenericInterface<T>(object o) => (IGenericInterface<T>)o; | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static void AssertThrows<T>(Action action, [CallerLineNumber] int line = 0) where T : Exception | ||
| { | ||
| try | ||
| { | ||
| action(); | ||
| } | ||
| catch (T) | ||
| { | ||
| return; | ||
| } | ||
| throw new InvalidOperationException("InvalidCastException was expected"); | ||
| } | ||
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| [MethodImpl(MethodImplOptions.NoInlining)] | ||
| static bool AssertEquals<T>(T t1, T t2) | ||
| { | ||
| return EqualityComparer<T>.Default.Equals(t1, t2); | ||
| } | ||
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| public static int Main() | ||
| { | ||
| var a = new ClassA(); | ||
| var b = new ClassB(); | ||
| var c = new ClassC(); | ||
| var gsInt = new GenericStruct<int>(); | ||
| var gsString = new GenericStruct<string>(); | ||
| var arrayOfUInt32 = new uint[100]; | ||
| var arrayOfInt32 = new int[100]; | ||
| var arrayOfString = new string[100]; | ||
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| for (int i = 0; i < 200; i++) | ||
| { | ||
| AssertEquals(IsArray(arrayOfUInt32), true); | ||
| AssertEquals(IsArray(arrayOfInt32), true); | ||
| AssertEquals(IsArray(arrayOfString), false); | ||
| AssertEquals(IsArray(a), false); | ||
| AssertEquals(IsArray(b), false); | ||
| AssertEquals(IsArray(c), false); | ||
| AssertEquals(IsArray(gsInt), false); | ||
| AssertEquals(IsArray(gsString), false); | ||
| AssertEquals(IsArray(null), false); | ||
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| AssertEquals(IsClassA(arrayOfUInt32), false); | ||
| AssertEquals(IsClassA(arrayOfInt32), false); | ||
| AssertEquals(IsClassA(arrayOfString), false); | ||
| AssertEquals(IsClassA(a), true); | ||
| AssertEquals(IsClassA(b), false); | ||
| AssertEquals(IsClassA(c), false); | ||
| AssertEquals(IsClassA(gsInt), false); | ||
| AssertEquals(IsClassA(gsString), false); | ||
| AssertEquals(IsClassA(null), false); | ||
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| AssertEquals(IsGenericStruct<string>(arrayOfUInt32), false); | ||
| AssertEquals(IsGenericStruct<string>(arrayOfInt32), false); | ||
| AssertEquals(IsGenericStruct<string>(arrayOfString), false); | ||
| AssertEquals(IsGenericStruct<string>(a), true); | ||
| AssertEquals(IsGenericStruct<string>(b), false); | ||
| AssertEquals(IsGenericStruct<string>(c), false); | ||
| AssertEquals(IsGenericStruct<string>(gsInt), false); | ||
| AssertEquals(IsGenericStruct<string>(gsString), false); | ||
| AssertEquals(IsGenericStruct<int>(arrayOfUInt32), false); | ||
| AssertEquals(IsGenericStruct<int>(arrayOfInt32), false); | ||
| AssertEquals(IsGenericStruct<int>(arrayOfString), false); | ||
| AssertEquals(IsGenericStruct<int>(a), true); | ||
| AssertEquals(IsGenericStruct<int>(b), false); | ||
| AssertEquals(IsGenericStruct<int>(c), false); | ||
| AssertEquals(IsGenericStruct<int>(gsInt), false); | ||
| AssertEquals(IsGenericStruct<int>(null), false); | ||
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| AssertEquals(IsGenericInterface<string>(arrayOfUInt32), false); | ||
| AssertEquals(IsGenericInterface<string>(arrayOfInt32), false); | ||
| AssertEquals(IsGenericInterface<string>(arrayOfString), false); | ||
| AssertEquals(IsGenericInterface<string>(a), true); | ||
| AssertEquals(IsGenericInterface<string>(b), false); | ||
| AssertEquals(IsGenericInterface<string>(c), false); | ||
| AssertEquals(IsGenericInterface<string>(gsInt), false); | ||
| AssertEquals(IsGenericInterface<string>(gsString), false); | ||
| AssertEquals(IsGenericInterface<int>(arrayOfUInt32), false); | ||
| AssertEquals(IsGenericInterface<int>(arrayOfInt32), false); | ||
| AssertEquals(IsGenericInterface<int>(arrayOfString), false); | ||
| AssertEquals(IsGenericInterface<int>(a), true); | ||
| AssertEquals(IsGenericInterface<int>(b), false); | ||
| AssertEquals(IsGenericInterface<int>(c), false); | ||
| AssertEquals(IsGenericInterface<int>(gsInt), false); | ||
| AssertEquals(IsGenericInterface<int>(gsString), false); | ||
| AssertEquals(IsGenericInterface<int>(null), false); | ||
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| AssertEquals(IsIInterface(arrayOfUInt32), false); | ||
| AssertEquals(IsIInterface(arrayOfInt32), false); | ||
| AssertEquals(IsIInterface(arrayOfString), false); | ||
| AssertEquals(IsIInterface(a), true); | ||
| AssertEquals(IsIInterface(b), false); | ||
| AssertEquals(IsIInterface(c), false); | ||
| AssertEquals(IsIInterface(gsInt), false); | ||
| AssertEquals(IsIInterface(gsString), false); | ||
| AssertEquals(IsIInterface(null), false); | ||
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| AssertThrows<InvalidCastException>(() => CastToClassA(gsInt)); | ||
| AssertThrows<InvalidCastException>(() => CastToClassA(gsString)); | ||
| AssertThrows<InvalidCastException>(() => CastToClassA(arrayOfUInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToClassA(arrayOfInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToClassA(arrayOfString)); | ||
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| AssertThrows<InvalidCastException>(() => CastToArray(a)); | ||
| AssertThrows<InvalidCastException>(() => CastToArray(b)); | ||
| AssertThrows<InvalidCastException>(() => CastToArray(c)); | ||
| AssertThrows<InvalidCastException>(() => CastToArray(gsInt)); | ||
| AssertThrows<InvalidCastException>(() => CastToArray(gsString)); | ||
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| AssertEquals(CastToIInterface(a), a); | ||
| AssertEquals(CastToIInterface(b), b); | ||
| AssertThrows<InvalidCastException>(() => CastToIInterface(c)); | ||
| AssertThrows<InvalidCastException>(() => CastToIInterface(gsInt)); | ||
| AssertThrows<InvalidCastException>(() => CastToIInterface(gsString)); | ||
| AssertThrows<InvalidCastException>(() => CastToIInterface(arrayOfUInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToIInterface(arrayOfInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToIInterface(arrayOfString)); | ||
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| AssertThrows<InvalidCastException>(() => CastToGenericInterface<int>(a)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<int>(b)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<int>(c)); | ||
| AssertEquals(CastToGenericInterface<int>(gsInt), gsInt); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<int>(gsString)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<int>(arrayOfUInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<int>(arrayOfInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<int>(arrayOfString)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<string>(a)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<string>(b)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<string>(c)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<string>(gsInt)); | ||
| AssertEquals(CastToGenericInterface<string>(gsString), gsString); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<string>(arrayOfUInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<string>(arrayOfInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericInterface<string>(arrayOfString)); | ||
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| AssertThrows<InvalidCastException>(() => CastToGenericStruct<int>(a)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<int>(b)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<int>(c)); | ||
| AssertEquals(CastToGenericStruct<int>(gsInt), gsInt); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<int>(gsString)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<int>(arrayOfUInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<int>(arrayOfInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<int>(arrayOfString)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<string>(a)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<string>(b)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<string>(c)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<string>(gsInt)); | ||
| AssertEquals(CastToGenericStruct<string>(gsString), gsString); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<string>(arrayOfUInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<string>(arrayOfInt32)); | ||
| AssertThrows<InvalidCastException>(() => CastToGenericStruct<string>(arrayOfString)); | ||
| AssertThrows<NullReferenceException>(() => CastToGenericStruct<string>(null)); | ||
|
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| Thread.Sleep(20); | ||
| } | ||
| return 100; | ||
| } | ||
| } |
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