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GenericsTest.SpanU.cs
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GenericsTest.SpanU.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;
using System.Runtime.InteropServices;
using Xunit;
unsafe partial class GenericsNative
{
[DllImport(nameof(GenericsNative))]
public static extern Span<uint> GetSpanU(uint e00);
[DllImport(nameof(GenericsNative))]
public static extern void GetSpanUOut(uint e00, out Span<uint> value);
[DllImport(nameof(GenericsNative), EntryPoint = "GetSpanUPtr")]
public static extern ref readonly Span<uint> GetSpanURef(uint e00);
[DllImport(nameof(GenericsNative))]
public static extern Span<uint> AddSpanU(Span<uint> lhs, Span<uint> rhs);
[DllImport(nameof(GenericsNative))]
public static extern Span<uint> AddSpanUs(in Span<uint> pValues, int count);
}
unsafe partial class GenericsTest
{
private static void TestSpanU()
{
Assert.Throws<MarshalDirectiveException>(() => GenericsNative.GetSpanU(1u));
Assert.Throws<MarshalDirectiveException>(() => GenericsNative.GetSpanUOut(1u, out Span<uint> value3));
Assert.Throws<MarshalDirectiveException>(() => GenericsNative.GetSpanURef(1u));
Assert.Throws<MarshalDirectiveException>(() => GenericsNative.AddSpanU(default, default));
Assert.Throws<MarshalDirectiveException>(() => {
Span<uint> value = default;
GenericsNative.AddSpanUs(in value, 1);
});
}
}