File: CrossLanguageTests.cs
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Project: src\src\Compilers\CSharp\Test\Symbol\Microsoft.CodeAnalysis.CSharp.Symbol.UnitTests.csproj (Microsoft.CodeAnalysis.CSharp.Symbol.UnitTests)
// 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.
 
#nullable disable
 
using System.Linq;
using Microsoft.CodeAnalysis.CSharp.Test.Utilities;
using Microsoft.CodeAnalysis.Test.Utilities;
using Microsoft.CodeAnalysis.VisualBasic;
using Xunit;
 
namespace Microsoft.CodeAnalysis.CSharp.UnitTests
{
    public class CrossLanguageTests : CSharpTestBase
    {
        [Fact]
        public void CanBeReferencedByName()
        {
            var vbText = @"
Public Interface I
    Property P(x As Integer)
End Interface
";
            var vbcomp = VisualBasicCompilation.Create(
                "Test",
                new[] { VisualBasicSyntaxTree.ParseText(vbText) },
                new[] { MscorlibRef_v4_0_30316_17626 },
                new VisualBasicCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
 
            var ref1 = vbcomp.EmitToImageReference(embedInteropTypes: true);
 
            var text = @"class C : I {}";
            var tree = Parse(text);
            var comp = CreateEmptyCompilation(new[] { tree }, new[] { ref1 });
 
            var t = comp.GetTypeByMetadataName("I");
            Assert.Empty(t.GetMembersUnordered().Where(x => x.Kind == SymbolKind.Method && !x.CanBeReferencedByName));
            Assert.False(t.GetMembersUnordered().Where(x => x.Kind == SymbolKind.Property).First().CanBeReferencedByName); //there's only one.
        }
    }
}