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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.
// See the LICENSE file in the project root for more information.
#nullable disable
using System;
using System.IO;
using System.Reflection.Metadata;
using System.Reflection.Metadata.Ecma335;
using Microsoft.CodeAnalysis.CSharp.Test.Utilities;
using Microsoft.CodeAnalysis.Debugging;
using Microsoft.CodeAnalysis.Emit;
using Microsoft.CodeAnalysis.Test.Utilities;
using Microsoft.CodeAnalysis.Text;
using Microsoft.CodeAnalysis.UnitTests;
using Microsoft.DiaSymReader;
using Microsoft.DiaSymReader.PortablePdb;
using Moq;
using Roslyn.Test.Utilities;
using Xunit;
namespace Microsoft.CodeAnalysis.EditAndContinue.UnitTests
{
public class EditAndContinueMethodDebugInfoReaderTests
{
private class DummyMetadataImportProvider : IMetadataImportProvider
{
public object GetMetadataImport() => throw new NotImplementedException();
}
[Fact]
public void Create_Errors()
{
Assert.Throws<ArgumentNullException>(() => EditAndContinueMethodDebugInfoReader.Create((ISymUnmanagedReader5)null));
Assert.Throws<ArgumentNullException>(() => EditAndContinueMethodDebugInfoReader.Create((MetadataReader)null));
Assert.Throws<ArgumentNullException>(() => EditAndContinueMethodDebugInfoReader.Create(null, 1));
var mockSymReader = new Mock<ISymUnmanagedReader5>(MockBehavior.Strict).Object;
Assert.Throws<ArgumentOutOfRangeException>(() => EditAndContinueMethodDebugInfoReader.Create(mockSymReader, 0));
Assert.Throws<ArgumentOutOfRangeException>(() => EditAndContinueMethodDebugInfoReader.Create(mockSymReader, -1));
}
[Theory]
[InlineData(DebugInformationFormat.PortablePdb, true)]
[InlineData(DebugInformationFormat.PortablePdb, false)]
[InlineData(DebugInformationFormat.Pdb, true)]
public void DebugInfo(DebugInformationFormat format, bool useSymReader)
{
var source = @"
using System;
delegate void D();
class C
{
public static void Main()
{
int x = 1;
D d = () => Console.Write(x);
d();
}
}
";
var tree = CSharpTestSource.Parse(source, path: "/a/c.cs", options: TestOptions.Regular.WithNoRefSafetyRulesAttribute(), checksumAlgorithm: SourceHashAlgorithm.Sha1);
var compilation = CSharpTestBase.CreateCompilationWithMscorlib40AndSystemCore(tree, options: TestOptions.DebugDll);
var pdbStream = new MemoryStream();
compilation.EmitToArray(new EmitOptions(debugInformationFormat: format), pdbStream: pdbStream);
pdbStream.Position = 0;
DebugInformationReaderProvider provider;
EditAndContinueMethodDebugInfoReader reader;
if (format == DebugInformationFormat.PortablePdb && useSymReader)
{
var pdbStreamCom = SymUnmanagedStreamFactory.CreateStream(pdbStream);
var metadataImportProvider = new DummyMetadataImportProvider();
Assert.Equal(0, new SymBinder().GetReaderFromPdbStream(metadataImportProvider, pdbStreamCom, out var symReader));
reader = EditAndContinueMethodDebugInfoReader.Create((ISymUnmanagedReader5)symReader, version: 1);
}
else
{
provider = DebugInformationReaderProvider.CreateFromStream(pdbStream);
reader = provider.CreateEditAndContinueMethodDebugInfoReader();
}
// Main method
var debugInfo = reader.GetDebugInfo(MetadataTokens.MethodDefinitionHandle(5));
Assert.Equal(0, debugInfo.GetMethodOrdinal());
AssertEx.Equal(["Offset=0 Ordinal=0 Kind=LambdaDisplayClass", "Offset=33 Ordinal=0 Kind=UserDefined"], debugInfo.InspectLocalSlots());
AssertEx.Equal(["Offset=43 Id=0#0 Closure=0"], debugInfo.InspectLambdas());
AssertEx.Equal(["Offset=0 Id=0#0"], debugInfo.InspectClosures());
var localSig = reader.GetLocalSignature(MetadataTokens.MethodDefinitionHandle(5));
Assert.Equal(MetadataTokens.StandaloneSignatureHandle(1), localSig);
// method without debug information:
debugInfo = reader.GetDebugInfo(MetadataTokens.MethodDefinitionHandle(1));
Assert.Equal(-1, debugInfo.GetMethodOrdinal());
Assert.Null(debugInfo.InspectLocalSlots());
Assert.Null(debugInfo.InspectLambdas());
Assert.Null(debugInfo.InspectClosures());
localSig = reader.GetLocalSignature(MetadataTokens.MethodDefinitionHandle(1));
Assert.Equal(default, localSig);
// document checksums:
Assert.False(reader.TryGetDocumentChecksum("/b/c.cs", out _, out _));
Assert.False(reader.TryGetDocumentChecksum("/a/d.cs", out _, out _));
Assert.False(reader.TryGetDocumentChecksum("/A/C.cs", out _, out _));
Assert.True(reader.TryGetDocumentChecksum("/a/c.cs", out var actualChecksum, out var actualAlgorithm));
Assert.Equal("21-C8-B2-D7-A3-6B-49-C7-57-DF-67-B8-1F-75-DF-6A-64-FD-59-22", BitConverter.ToString([.. actualChecksum]));
Assert.Equal(new Guid("ff1816ec-aa5e-4d10-87f7-6f4963833460"), actualAlgorithm);
}
}
}
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