Use strategy in StrategyBasedComWrappers.ComputeVtables (#92085)

jkoritzinsky · jtschuster · web-flow · commit 1f9764f23332 · 2023-09-18T14:56:04.000-07:00
Co-authored-by: Jackson Schuster &lt;36744439+jtschuster@users.noreply.github.com&gt;
diff --git a/src/libraries/System.Runtime.InteropServices/src/System/Runtime/InteropServices/Marshalling/StrategyBasedComWrappers.cs b/src/libraries/System.Runtime.InteropServices/src/System/Runtime/InteropServices/Marshalling/StrategyBasedComWrappers.cs
@@ -76,7 +76,7 @@ static IIUnknownInterfaceDetailsStrategy GetInteropStrategy()
         /// <inheritdoc cref="ComWrappers.ComputeVtables" />
         protected sealed override unsafe ComInterfaceEntry* ComputeVtables(object obj, CreateComInterfaceFlags flags, out int count)
         {
-            if (obj.GetType().GetCustomAttribute(typeof(ComExposedClassAttribute<>)) is IComExposedDetails details)
+            if (GetOrCreateInterfaceDetailsStrategy().GetComExposedTypeDetails(obj.GetType().TypeHandle) is { } details)
             {
                 return details.GetComInterfaceEntries(out count);
             }

Original file line number	Diff line number	Diff line change
`@@ -76,7 +76,7 @@ static IIUnknownInterfaceDetailsStrategy GetInteropStrategy()`
`76`	`76`	`/// <inheritdoc cref="ComWrappers.ComputeVtables" />`
`77`	`77`	`protected sealed override unsafe ComInterfaceEntry* ComputeVtables(object obj, CreateComInterfaceFlags flags, out int count)`
`78`	`78`	`{`
`79`		`- if (obj.GetType().GetCustomAttribute(typeof(ComExposedClassAttribute<>)) is IComExposedDetails details)`
	`79`	`+ if (GetOrCreateInterfaceDetailsStrategy().GetComExposedTypeDetails(obj.GetType().TypeHandle) is { } details)`
`80`	`80`	`{`
`81`	`81`	`return details.GetComInterfaceEntries(out count);`
`82`	`82`	`}`