Fix generation of APIs from ServiceFabric winmd

src/Microsoft.Windows.CsWin32/Generator.Com.cs

@@ -114,6 +114,8 @@ private TypeDeclarationSyntax DeclareInterfaceAsStruct(TypeDefinitionHandle type
         IdentifierNameSyntax hrLocal = IdentifierName("__hr");
         StatementSyntax returnSOK = ReturnStatement(MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, HresultTypeSyntax, IdentifierName("S_OK")));
 
+        this.MainGenerator.RequestInteropType("Windows.Win32.Foundation", "HRESULT", context);
+
         // It is imperative that we generate methods for all base interfaces as well, ahead of any implemented by *this* interface.
         var allMethods = new List<QualifiedMethodDefinitionHandle>();
         while (!baseTypes.IsEmpty)
@@ -134,11 +136,13 @@ private TypeDeclarationSyntax DeclareInterfaceAsStruct(TypeDefinitionHandle type
         allMethods.AddRange(typeDef.GetMethods().Select(m => new QualifiedMethodDefinitionHandle(this, m)));
         int methodCounter = 0;
         HashSet<string> helperMethodsInStruct = new();
-        ISet<string> declaredProperties = this.GetDeclarableProperties(
-            allMethods.Select(qh => qh.Reader.GetMethodDefinition(qh.MethodHandle)),
-            originalIfaceName,
-            allowNonConsecutiveAccessors: true,
-            context);
+        HashSet<string> declaredProperties = new(StringComparer.Ordinal);
+        declaredProperties.UnionWith(
+            from method in allMethods
+            group method by method.Generator into methodsByMetadata
+            let methodDefs = methodsByMetadata.Select(qh => qh.Reader.GetMethodDefinition(qh.MethodHandle))
+            from property in methodsByMetadata.Key.GetDeclarableProperties(methodDefs, originalIfaceName, allowNonConsecutiveAccessors: true, context)
+            select property);
         ISet<string>? ifaceDeclaredProperties = ccwThisParameter is not null ? this.GetDeclarableProperties(allMethods.Select(qh => qh.Reader.GetMethodDefinition(qh.MethodHandle)), originalIfaceName, allowNonConsecutiveAccessors: false, context) : null;
 
         foreach (QualifiedMethodDefinitionHandle methodDefHandle in allMethods)
@@ -189,7 +193,7 @@ private TypeDeclarationSyntax DeclareInterfaceAsStruct(TypeDefinitionHandle type
 
             // We can declare this method as a property accessor if it represents a property.
             // We must also confirm that the property type is the same in both cases, because sometimes they aren't (e.g. IUIAutomationProxyFactoryEntry.ClassName).
-            if (this.TryGetPropertyAccessorInfo(methodDefinition.Method, originalIfaceName, context, out IdentifierNameSyntax? propertyName, out SyntaxKind? accessorKind, out TypeSyntax? propertyType) &&
+            if (methodDefinition.Generator.TryGetPropertyAccessorInfo(methodDefinition.Method, originalIfaceName, context, out IdentifierNameSyntax? propertyName, out SyntaxKind? accessorKind, out TypeSyntax? propertyType) &&
                 declaredProperties.Contains(propertyName.Identifier.ValueText))
             {
                 StatementSyntax ThrowOnHRFailure(ExpressionSyntax hrExpression) => ExpressionStatement(InvocationExpression(
@@ -257,7 +261,7 @@ StatementSyntax ThrowOnHRFailure(ExpressionSyntax hrExpression) => ExpressionSta
             else
             {
                 BlockSyntax body;
-                bool preserveSig = this.UsePreserveSigForComMethod(methodDefinition.Method, signature, ifaceName.Identifier.ValueText, methodName);
+                bool preserveSig = methodDefinition.Generator.UsePreserveSigForComMethod(methodDefinition.Method, signature, ifaceName.Identifier.ValueText, methodName);
                 if (preserveSig)
                 {
                     // return ...

src/Microsoft.Windows.CsWin32/Generator.cs

@@ -200,7 +200,7 @@ internal Generator MainGenerator
 
     private bool WideCharOnly => this.options.WideCharOnly;
 
-    private string Namespace => this.InputAssemblyName;
+    private string Namespace => this.MetadataIndex.CommonNamespace;
 
     private SyntaxKind Visibility => this.options.Public ? SyntaxKind.PublicKeyword : SyntaxKind.InternalKeyword;
 

test/Microsoft.Windows.CsWin32.Tests/ExternalMetadata/NOTICE.md

@@ -0,0 +1,5 @@
+This folder contains winmd files obtained from other sources which we use for testing.
+
+Metadata | Source
+--|--
+ServiceFabric.winmd | [youyuanwu/fabric-metadata](https://github.com/youyuanwu/fabric-metadata/raw/a1bcca6ad6f6a772c9e5ff4bdba80ae5e5f24cfc/.windows/winmd/ServiceFabric.winmd)

test/Microsoft.Windows.CsWin32.Tests/GeneratorTestBase.cs

@@ -10,6 +10,7 @@ public abstract class GeneratorTestBase : IDisposable, IAsyncLifetime
     protected static readonly string WdkMetadataPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location!)!, "Windows.Wdk.winmd");
     protected static readonly string[] DefaultMetadataPaths = new[] { MetadataPath, WdkMetadataPath };
     ////protected static readonly string DiaMetadataPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location!)!, "Microsoft.Dia.winmd");
+    protected static readonly string ServiceFabricMetadataPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location!)!, "ExternalMetadata", "ServiceFabric.winmd");
     protected static readonly string ApiDocsPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location!)!, "apidocs.msgpack");
 
     protected readonly ITestOutputHelper logger;

test/Microsoft.Windows.CsWin32.Tests/Microsoft.Windows.CsWin32.Tests.csproj

@@ -24,6 +24,9 @@
     <None Include="@(ProjectionDocs)">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
+    <None Include="ExternalMetadata\*.winmd">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
   <ItemGroup>

test/Microsoft.Windows.CsWin32.Tests/MultiMetadataTests.cs

@@ -0,0 +1,19 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+public class MultiMetadataTests : GeneratorTestBase
+{
+    public MultiMetadataTests(ITestOutputHelper logger)
+        : base(logger)
+    {
+    }
+
+    [Theory, PairwiseData]
+    public void BasicServiceFabric(bool allowMarshaling)
+    {
+        this.generator = this.CreateSuperGenerator(DefaultMetadataPaths.Concat(new[] { ServiceFabricMetadataPath }).ToArray(), DefaultTestGeneratorOptions with { AllowMarshaling = allowMarshaling });
+        Assert.True(this.generator.TryGenerate("IFabricStringResult", CancellationToken.None));
+        this.CollectGeneratedCode(this.generator);
+        this.AssertNoDiagnostics();
+    }
+}