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ICustomMarshaler.cs
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ICustomMarshaler.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Collections.Generic;
using System.Linq;
using Xunit;
using static TestLibrary.Utilities;
namespace System.Runtime.InteropServices.Tests
{
[ActiveIssue("https://github.com/dotnet/runtime/issues/91388", typeof(TestLibrary.PlatformDetection), nameof(TestLibrary.PlatformDetection.PlatformDoesNotSupportNativeTestAssets))]
public class ICustomMarshalerTests
{
// To avoid having to create a native test library to reference in tests that
// interact with native libraries, we can use a simple method from the C standard
// library. Unfortunately, the C standard library has different names on Windows
// vs Unix.
#if Windows
public const string LibcLibrary = "msvcrt.dll";
#else
public const string LibcLibrary = "libc";
#endif
public static void CustomMarshaler_StringType_Success()
{
int val = 64001;
Assert.Equal(val, MarshalerOnStringTypeMethod(val.ToString()));
}
public class StringForwardingCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { Marshal.ZeroFreeCoTaskMemAnsi(pNativeData); }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => Marshal.StringToCoTaskMemAnsi((string)ManagedObj);
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie) => new StringForwardingCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi")]
public static extern int MarshalerOnStringTypeMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(StringForwardingCustomMarshaler))] string str);
public static void CustomMarshaler_ArrayType_Success()
{
int val = 64001;
Assert.Equal(val, MarshalerOnArrayTypeMethod(new string[] { val.ToString() }));
}
public class ArrayForwardingCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { Marshal.ZeroFreeCoTaskMemAnsi(pNativeData); }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => Marshal.StringToCoTaskMemAnsi(((string[])ManagedObj)[0]);
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie) => new ArrayForwardingCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi")]
public static extern int MarshalerOnArrayTypeMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalType = "System.Runtime.InteropServices.Tests.ICustomMarshalerTests+ArrayForwardingCustomMarshaler")] string[] str);
public static void CustomMarshaler_BoxedValueType_Success()
{
int val = 64001;
Assert.Equal(val * 2, MarshalerOnBoxedValueTypeMethod(val));
}
public class BoxedValueTypeCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { Marshal.ZeroFreeCoTaskMemAnsi(pNativeData); }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj)
{
int unboxedValueType = (int)ManagedObj * 2;
return Marshal.StringToCoTaskMemAnsi(unboxedValueType.ToString());
}
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie) => new BoxedValueTypeCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi")]
public static extern int MarshalerOnBoxedValueTypeMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(BoxedValueTypeCustomMarshaler))] object i);
public static void Parameter_CustomMarshalerProvidedOnClassType_ForwardsCorrectly()
{
int val = 64001;
Assert.Equal((val * 2).ToString(), MarshalerOnClassTypeMethod(new StringContainer { Value = val.ToString() }).Value);
}
public class StringContainer
{
public string Value { get; set; }
}
public class ClassForwardingCustomMarshaler : ICustomMarshaler
{
private bool CleanedString { get; set; }
public void CleanUpManagedData(object ManagedObj) {}
public void CleanUpNativeData(IntPtr pNativeData)
{
if (CleanedString)
{
return;
}
Marshal.ZeroFreeCoTaskMemAnsi(pNativeData);
CleanedString = true;
}
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj)
{
return Marshal.StringToCoTaskMemAnsi(((StringContainer)ManagedObj).Value);
}
public object MarshalNativeToManaged(IntPtr pNativeData)
{
int doubleValue = pNativeData.ToInt32() * 2;
return new StringContainer { Value = doubleValue.ToString() };
}
public static ICustomMarshaler GetInstance(string cookie) => new ClassForwardingCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
[return: MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(ClassForwardingCustomMarshaler))]
public static extern StringContainer MarshalerOnClassTypeMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(ClassForwardingCustomMarshaler))] StringContainer str);
public static void Parameter_CustomMarshalerProvided_CallsMethodsInCorrectOrdering()
{
Assert.Empty(OrderTrackingCustomMarshaler.Events);
string val1 = "64001";
Assert.Equal(val1, OrderTrackingMethod(val1));
string[] expectedOrderingFirstCall = new string[]
{
"Called GetInstance",
"Called MarshalManagedToNative",
"Called MarshalNativeToManaged",
"Called CleanUpNativeData"
};
Assert.Equal(expectedOrderingFirstCall, OrderTrackingCustomMarshaler.Events);
// GetInstance is only called once.
string val2 = "234";
Assert.Equal(val2, OrderTrackingMethod(val2));
IEnumerable<string> expectedOrderingSecondCall = expectedOrderingFirstCall.Concat(new string[]
{
"Called MarshalManagedToNative",
"Called MarshalNativeToManaged",
"Called CleanUpNativeData"
});
Assert.Equal(expectedOrderingSecondCall, OrderTrackingCustomMarshaler.Events);
// GetInstance is only called once.
string val3 = "7488";
Assert.Equal(7488, OrderTrackingMethodRef(ref val3));
IEnumerable<string> expectedOrderingThirdCall = expectedOrderingSecondCall.Concat(new string[]
{
"Called MarshalManagedToNative",
"Called CleanUpManagedData",
"Called MarshalNativeToManaged",
"Called CleanUpNativeData",
});
Assert.Equal(expectedOrderingThirdCall.Skip(7), OrderTrackingCustomMarshaler.Events.Skip(7));
OrderTrackingMethodOut(out var val4);
Assert.Equal("2334", val4);
IEnumerable<string> expectedOrderingForthCall = expectedOrderingThirdCall.Concat(new string[]
{
"Called MarshalNativeToManaged",
});
Assert.Equal(expectedOrderingForthCall.Skip(11), OrderTrackingCustomMarshaler.Events.Skip(11));
var val5 = OrderTrackingMethodDelegate(439, (x) => x.ToString());
Assert.Equal("439", val5);
IEnumerable<string> expectedOrderingFifthCall = expectedOrderingForthCall.Concat(new string[]
{
"Called MarshalManagedToNative",
"Called CleanUpManagedData",
"Called MarshalNativeToManaged",
});
Assert.Equal(expectedOrderingFifthCall.Skip(12), OrderTrackingCustomMarshaler.Events.Skip(12));
var val6 = OrderTrackingMethodReturn("726");
Assert.Equal("726", val6);
IEnumerable<string> expectedOrderingSixthCall = expectedOrderingFifthCall.Concat(new string[]
{
"Called MarshalNativeToManaged",
});
Assert.Equal(expectedOrderingSixthCall.Skip(15), OrderTrackingCustomMarshaler.Events.Skip(15));
}
// This should only be used *once*, as it uses static state.
public class OrderTrackingCustomMarshaler : ICustomMarshaler
{
public static List<string> Events { get; } = new List<string>();
public static IntPtr MarshaledNativeData { get; set; }
public void CleanUpManagedData(object ManagedObj)
{
Events.Add("Called CleanUpManagedData");
}
public void CleanUpNativeData(IntPtr pNativeData)
{
Assert.Equal(MarshaledNativeData, pNativeData);
Marshal.ZeroFreeCoTaskMemAnsi(pNativeData);
Events.Add("Called CleanUpNativeData");
}
public int GetNativeDataSize()
{
Events.Add("Called GetNativeDataSize");
return 0;
}
public IntPtr MarshalManagedToNative(object ManagedObj)
{
Events.Add("Called MarshalManagedToNative");
MarshaledNativeData = Marshal.StringToCoTaskMemAnsi((string)ManagedObj);
return MarshaledNativeData;
}
public object MarshalNativeToManaged(IntPtr pNativeData)
{
Events.Add("Called MarshalNativeToManaged");
return pNativeData.ToInt64().ToString();
}
public static ICustomMarshaler GetInstance(string cookie)
{
Assert.Empty(cookie);
Events.Add("Called GetInstance");
return new OrderTrackingCustomMarshaler();
}
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
[return: MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(OrderTrackingCustomMarshaler))]
public static extern string OrderTrackingMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(OrderTrackingCustomMarshaler))] string str);
[DllImport("CustomMarshalersPrimitives", EntryPoint = "NativeParseIntRef")]
public static extern int OrderTrackingMethodRef([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(OrderTrackingCustomMarshaler))] ref string str);
[DllImport("CustomMarshalersPrimitives", EntryPoint = "NativeParseIntOut")]
public static extern void OrderTrackingMethodOut([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(OrderTrackingCustomMarshaler))] out string str);
[return: MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(OrderTrackingCustomMarshaler))]
public delegate string TestDelegate(int val);
[DllImport("CustomMarshalersPrimitives", EntryPoint = "NativeParseIntDelegate")]
[return: MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(OrderTrackingCustomMarshaler))]
public static extern string OrderTrackingMethodDelegate(int val, TestDelegate dlg);
[DllImport("CustomMarshalersPrimitives", EntryPoint = "NativeParseInt")]
[return: MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(OrderTrackingCustomMarshaler))]
public static extern string OrderTrackingMethodReturn([MarshalAs(UnmanagedType.LPStr)] string str);
public static void CustomMarshaler_BothMarshalTypeRefAndMarshalTypeProvided_PicksMarshalType()
{
Assert.Equal(2, BothTypeRefAndTypeMethod("64001"));
}
public class OverridingCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { Marshal.ZeroFreeCoTaskMemAnsi(pNativeData); }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => Marshal.StringToCoTaskMemAnsi("2");
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie) => new OverridingCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int BothTypeRefAndTypeMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalType = "System.Runtime.InteropServices.Tests.ICustomMarshalerTests+OverridingCustomMarshaler", MarshalTypeRef = typeof(StringForwardingCustomMarshaler))] string str);
public static void Parameter_CookieProvided_PassesCookieToGetInstance()
{
int val = 64001;
Assert.Equal(val, CustomCookieMethod(val.ToString()));
Assert.Equal("Cookie", CookieTrackingCustomMarshaler.Cookie);
}
public class CookieTrackingCustomMarshaler : ICustomMarshaler
{
public static string Cookie { get; set; }
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { Marshal.ZeroFreeCoTaskMemAnsi(pNativeData); }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => Marshal.StringToCoTaskMemAnsi((string)ManagedObj);
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie)
{
Cookie = cookie;
return new CookieTrackingCustomMarshaler();
}
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int CustomCookieMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(CookieTrackingCustomMarshaler), MarshalCookie = "Cookie")] string str);
public static void Parameter_NotCustomMarshalerType_UsesSpecifiedMarshaler()
{
int val = 64001;
Assert.Equal(val, NonCustomMarshalerTypeMethod(val.ToString()));
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int NonCustomMarshalerTypeMethod([MarshalAs(UnmanagedType.LPStr, MarshalTypeRef = typeof(OverridingCustomMarshaler))] string str);
public static void CustomMarshaler_Generic_Success()
{
Assert.Equal(234, GenericGetInstanceCustomMarshalerMethod("64001"));
}
public class GenericCustomMarshaler<T> : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { Marshal.ZeroFreeCoTaskMemAnsi(pNativeData); }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => Marshal.StringToCoTaskMemAnsi("234");
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie)
{
return new GenericCustomMarshaler<int>();
}
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int GenericGetInstanceCustomMarshalerMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(GenericCustomMarshaler<int>))] string str);
public static void CustomMarshaler_ValueTypeWithStringType_Success()
{
Assert.Equal(234, ValueTypeMarshalerOnStringTypeMethod("64001"));
}
public struct CustomMarshalerValueType : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { Marshal.ZeroFreeCoTaskMemAnsi(pNativeData); }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => Marshal.StringToCoTaskMemAnsi("234");
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie)
{
return new CustomMarshalerValueType();
}
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int ValueTypeMarshalerOnStringTypeMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(CustomMarshalerValueType))] string str);
public static void Parameter_MarshalerOnValueType_ThrowsMarshalDirectiveException()
{
Assert.Throws<MarshalDirectiveException>(() => MarshalerOnValueTypeMethod(0));
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int MarshalerOnValueTypeMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(StringForwardingCustomMarshaler))] int str);
public static unsafe void Parameter_MarshalerOnPointer_ThrowsMarshalDirectiveException()
{
Assert.Throws<MarshalDirectiveException>(() => MarshalerOnPointerMethod(null));
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static unsafe extern int MarshalerOnPointerMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(StringForwardingCustomMarshaler))] int* str);
public static void Parameter_NullICustomMarshaler_ThrowsTypeLoadException()
{
Assert.Throws<TypeLoadException>(() => NullCustomMarshalerMethod(""));
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int NullCustomMarshalerMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = null)] string str);
public static void Parameter_InvalidTypeICustomMarshaler_TypeLoadException()
{
Assert.Throws<TypeLoadException>(() => InvalidTypeCustomMarshalerMethod(""));
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int InvalidTypeCustomMarshalerMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalType = "junk_type")] string str);
public static void Parameter_NotICustomMarshaler_ThrowsApplicationException()
{
Assert.Throws<ApplicationException>(() => NonICustomMarshalerMethod(""));
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int NonICustomMarshalerMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(string))] string str);
public static void Parameter_OpenGenericICustomMarshaler_ThrowsTypeLoadException()
{
Assert.Throws<TypeLoadException>(() => OpenGenericICustomMarshalerMethod(""));
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int OpenGenericICustomMarshalerMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(GenericCustomMarshaler<>))] string str);
public static void Parameter_GetInstanceMethodDoesntExist_ThrowsApplicationException()
{
Assert.Throws<ApplicationException>(() => NoGetInstanceMethod(""));
}
public class NoGetInstanceCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => IntPtr.Zero;
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int NoGetInstanceMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(NoGetInstanceCustomMarshaler))] string str);
public static void Parameter_GetInstanceMethodInstanceMethod_ThrowsApplicationException()
{
Assert.Throws<ApplicationException>(() => InstanceGetInstanceMethod(""));
}
public class InstanceGetInstanceCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => IntPtr.Zero;
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public ICustomMarshaler GetInstance(string cookie) => new InstanceGetInstanceCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int InstanceGetInstanceMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(InstanceGetInstanceCustomMarshaler))] string str);
public static void Parameter_GetInstanceMethodNoParameters_ThrowsApplicationException()
{
Assert.Throws<ApplicationException>(() => NoParametersGetInstanceMethod(""));
}
public class NoParameterGetInstanceCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => IntPtr.Zero;
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance() => new NoParameterGetInstanceCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int NoParametersGetInstanceMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(NoParameterGetInstanceCustomMarshaler))] string str);
public static void Parameter_GetInstanceMethodNonStringParameter_ThrowsApplicationException()
{
Assert.Throws<ApplicationException>(() => NonStringGetInstanceMethod(""));
}
public class NonStringGetInstanceCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => IntPtr.Zero;
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(int x) => new NonStringGetInstanceCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int NonStringGetInstanceMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(NonStringGetInstanceCustomMarshaler))] string str);
public static void Parameter_GetInstanceMethodReturnsVoid_ThrowsApplicationException()
{
Assert.Throws<ApplicationException>(() => VoidGetInstanceMethod(""));
}
public class VoidGetInstanceCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => IntPtr.Zero;
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static void GetInstance(string cookie) { }
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int VoidGetInstanceMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(VoidGetInstanceCustomMarshaler))] string str);
public static void Parameter_GetInstanceMethodReturnsNull_ThrowsApplicationException()
{
Assert.Throws<ApplicationException>(() => NullGetInstanceMethod(""));
}
public class NullGetInstanceCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => IntPtr.Zero;
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie) => null;
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int NullGetInstanceMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(NullGetInstanceCustomMarshaler))] string str);
public static void Parameter_GetInstanceMethodThrows_ThrowsActualException()
{
Assert.Throws<NotImplementedException>(() => ThrowingGetInstanceMethod(""));
}
public class ThrowingGetInstanceCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => IntPtr.Zero;
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie) => throw new NotImplementedException();
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int ThrowingGetInstanceMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(ThrowingGetInstanceCustomMarshaler))] string str);
public static void Parameter_MarshalManagedToNativeThrows_ThrowsActualException()
{
Assert.Throws<NotImplementedException>(() => ThrowingMarshalManagedToNativeMethod(""));
}
public class ThrowingMarshalManagedToNativeCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) { }
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => throw new NotImplementedException();
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie) => new ThrowingMarshalManagedToNativeCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int ThrowingMarshalManagedToNativeMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(ThrowingMarshalManagedToNativeCustomMarshaler))] string str);
public static void Parameter_CleanUpNativeDataMethodThrows_ThrowsActualException()
{
Assert.Throws<NotImplementedException>(() => ThrowingCleanUpNativeDataMethod(""));
}
public class ThrowingCleanUpNativeDataCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) => throw new NotImplementedException();
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => Marshal.StringToCoTaskMemAnsi((string)ManagedObj);
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
public static ICustomMarshaler GetInstance(string cookie) => new ThrowingMarshalManagedToNativeCustomMarshaler();
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int ThrowingCleanUpNativeDataMethod([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(ThrowingCleanUpNativeDataCustomMarshaler))] string str);
public static void Field_ParentIsStruct_ThrowsTypeLoadException()
{
Assert.Throws<TypeLoadException>(() => StructWithCustomMarshalerFieldMethod(new StructWithCustomMarshalerField()));
}
public struct StructWithCustomMarshalerField
{
[MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(StringForwardingCustomMarshaler))]
public string Field;
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int StructWithCustomMarshalerFieldMethod(StructWithCustomMarshalerField c);
public static void Parameter_DifferentCustomMarshalerType_MarshalsCorrectly()
{
Assert.Equal(234, DifferentCustomMarshalerType("5678"));
}
public class OuterCustomMarshaler : ICustomMarshaler
{
public void CleanUpManagedData(object ManagedObj) => throw new NotImplementedException();
public void CleanUpNativeData(IntPtr pNativeData) => throw new NotImplementedException();
public int GetNativeDataSize() => throw new NotImplementedException();
public IntPtr MarshalManagedToNative(object ManagedObj) => throw new NotImplementedException();
public object MarshalNativeToManaged(IntPtr pNativeData) => throw new NotImplementedException();
public static ICustomMarshaler GetInstance(string cookie) => new InnerCustomMarshaler();
private interface ILargeInterface
{
void Method1();
void Method2();
void Method3();
void Method4();
void Method5();
void Method6();
}
private class InnerCustomMarshaler : ILargeInterface, ICustomMarshaler
{
public void Method1() => throw new InvalidOperationException();
public void Method2() => throw new InvalidOperationException();
public void Method3() => throw new InvalidOperationException();
public void Method4() => throw new InvalidOperationException();
public void Method5() => throw new InvalidOperationException();
public void Method6() => throw new InvalidOperationException();
public void CleanUpManagedData(object ManagedObj) { }
public void CleanUpNativeData(IntPtr pNativeData) => Marshal.FreeCoTaskMem(pNativeData);
public int GetNativeDataSize() => IntPtr.Size;
public IntPtr MarshalManagedToNative(object ManagedObj) => Marshal.StringToCoTaskMemAnsi("234");
public object MarshalNativeToManaged(IntPtr pNativeData) => null;
}
}
[DllImport(LibcLibrary, EntryPoint = "atoi", CallingConvention = CallingConvention.Cdecl)]
public static extern int DifferentCustomMarshalerType([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(OuterCustomMarshaler))] string str);
public delegate string TestDelegateRef([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(BoxedValueTypeCustomMarshaler))] ref int val);
[DllImport("CustomMarshalersPrimitives", EntryPoint = "NativeParseIntDelegateRef")]
public static extern string CustomMarshallerWithDelegateRef(int val, TestDelegateRef dlg);
public static void DelegateParameter_MarshalerOnRefInt_ThrowsMarshalDirectiveException()
{
Assert.Throws<MarshalDirectiveException>(() => CustomMarshallerWithDelegateRef(84664, (ref int x) => x.ToString()));
}
[Fact]
public static int TestEntryPoint()
{
try
{
CustomMarshaler_StringType_Success();
CustomMarshaler_ArrayType_Success();
CustomMarshaler_BoxedValueType_Success();
Parameter_CustomMarshalerProvidedOnClassType_ForwardsCorrectly();
Parameter_CustomMarshalerProvided_CallsMethodsInCorrectOrdering();
CustomMarshaler_BothMarshalTypeRefAndMarshalTypeProvided_PicksMarshalType();
Parameter_CookieProvided_PassesCookieToGetInstance();
Parameter_NotCustomMarshalerType_UsesSpecifiedMarshaler();
CustomMarshaler_Generic_Success();
CustomMarshaler_ValueTypeWithStringType_Success();
Parameter_MarshalerOnValueType_ThrowsMarshalDirectiveException();
Parameter_MarshalerOnPointer_ThrowsMarshalDirectiveException();
Parameter_NullICustomMarshaler_ThrowsTypeLoadException();
Parameter_InvalidTypeICustomMarshaler_TypeLoadException();
Parameter_NotICustomMarshaler_ThrowsApplicationException();
Parameter_OpenGenericICustomMarshaler_ThrowsTypeLoadException();
Parameter_GetInstanceMethodDoesntExist_ThrowsApplicationException();
Parameter_GetInstanceMethodInstanceMethod_ThrowsApplicationException();
Parameter_GetInstanceMethodNoParameters_ThrowsApplicationException();
Parameter_GetInstanceMethodNonStringParameter_ThrowsApplicationException();
Parameter_GetInstanceMethodReturnsVoid_ThrowsApplicationException();
Parameter_GetInstanceMethodReturnsNull_ThrowsApplicationException();
Parameter_GetInstanceMethodThrows_ThrowsActualException();
Parameter_MarshalManagedToNativeThrows_ThrowsActualException();
Parameter_CleanUpNativeDataMethodThrows_ThrowsActualException();
Field_ParentIsStruct_ThrowsTypeLoadException();
Parameter_DifferentCustomMarshalerType_MarshalsCorrectly();
if (SupportsExceptionInterop)
{
// EH interop is not supported for NativeAOT.
DelegateParameter_MarshalerOnRefInt_ThrowsMarshalDirectiveException();
}
}
catch (Exception e)
{
Console.WriteLine($"Test Failure: {e}");
return 101;
}
return 100;
}
}
}