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Merge branch 'dotnet7' of https://github.com/GoaLitiuM/FlaxEngine into GoaLitiuM-dotnet7

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# Conflicts:
#	Source/Engine/Engine/NativeInterop.cs
This commit is contained in:
Wojciech Figat
2023-01-02 11:04:36 +01:00
parent 0ab6e29792 5b4e209816
commit dea307179f
6 changed files with 687 additions and 454 deletions
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94
Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
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@@ -486,7 +486,7 @@ namespace Flax.Build.Bindings
else if (returnValueType == "CultureInfo")
returnMarshalType = "MarshalUsing(typeof(FlaxEngine.CultureInfoMarshaller))";
else if (functionInfo.ReturnType.Type == "Variant")
returnMarshalType = "MarshalUsing(typeof(FlaxEngine.GCHandleMarshaller))";
returnMarshalType = "MarshalUsing(typeof(FlaxEngine.ManagedHandleMarshaller))";
else if (FindApiTypeInfo(buildData, functionInfo.ReturnType, caller)?.IsInterface ?? false)
{
// Interfaces are not supported by NativeMarshallingAttribute, marshal the parameter
@@ -538,7 +538,7 @@ namespace Flax.Build.Bindings
else if (parameterInfo.Type.Type == "CultureInfo")
parameterMarshalType = "MarshalUsing(typeof(FlaxEngine.CultureInfoMarshaller))";
else if (parameterInfo.Type.Type == "Variant") // object
parameterMarshalType = "MarshalUsing(typeof(FlaxEngine.GCHandleMarshaller))";
parameterMarshalType = "MarshalUsing(typeof(FlaxEngine.ManagedHandleMarshaller))";
else if (parameterInfo.Type.Type == "MonoArray")
parameterMarshalType = "MarshalUsing(typeof(FlaxEngine.SystemArrayMarshaller))";
else if (parameterInfo.Type.Type == "Array" && parameterInfo.Type.GenericArgs.Count > 0 && parameterInfo.Type.GenericArgs[0].Type == "bool")
@@ -1263,30 +1263,30 @@ namespace Flax.Build.Bindings
#pragma warning disable 1591
public static class NativeToManaged
{
public static {{classInfo.Name}} ConvertToManaged(IntPtr unmanaged) => ({{classInfo.Name}})GCHandleMarshaller.NativeToManaged.ConvertToManaged(unmanaged);
public static void Free(IntPtr unmanaged) => GCHandleMarshaller.NativeToManaged.Free(unmanaged);
public static {{classInfo.Name}} ConvertToManaged(IntPtr unmanaged) => ({{classInfo.Name}})ManagedHandleMarshaller.NativeToManaged.ConvertToManaged(unmanaged);
public static void Free(IntPtr unmanaged) => ManagedHandleMarshaller.NativeToManaged.Free(unmanaged);
}
public static class ManagedToNative
{
public static IntPtr ConvertToUnmanaged({{classInfo.Name}} managed) => GCHandleMarshaller.ManagedToNative.ConvertToUnmanaged(managed);
public static void Free(IntPtr unmanaged) => GCHandleMarshaller.ManagedToNative.Free(unmanaged);
public static IntPtr ConvertToUnmanaged({{classInfo.Name}} managed) => ManagedHandleMarshaller.ManagedToNative.ConvertToUnmanaged(managed);
public static void Free(IntPtr unmanaged) => ManagedHandleMarshaller.ManagedToNative.Free(unmanaged);
}
[HideInEditor]
public struct Bidirectional
{
GCHandleMarshaller.Bidirectional marsh;
ManagedHandleMarshaller.Bidirectional marsh;
public void FromManaged({{classInfo.Name}} managed) => marsh.FromManaged(managed);
public IntPtr ToUnmanaged() => marsh.ToUnmanaged();
public void FromUnmanaged(IntPtr unmanaged) => marsh.FromUnmanaged(unmanaged);
public {{classInfo.Name}} ToManaged() => ({{classInfo.Name}})marsh.ToManaged();
public void Free() => marsh.Free();
}
internal static {{classInfo.Name}} ConvertToManaged(IntPtr unmanaged) => ({{classInfo.Name}})GCHandleMarshaller.ConvertToManaged(unmanaged);
internal static IntPtr ConvertToUnmanaged({{classInfo.Name}} managed) => GCHandleMarshaller.ConvertToUnmanaged(managed);
internal static void Free(IntPtr unmanaged) => GCHandleMarshaller.Free(unmanaged);
internal static {{classInfo.Name}} ConvertToManaged(IntPtr unmanaged) => ({{classInfo.Name}})ManagedHandleMarshaller.ConvertToManaged(unmanaged);
internal static IntPtr ConvertToUnmanaged({{classInfo.Name}} managed) => ManagedHandleMarshaller.ConvertToUnmanaged(managed);
internal static void Free(IntPtr unmanaged) => ManagedHandleMarshaller.Free(unmanaged);
internal static {{classInfo.Name}} ToManaged(IntPtr managed) => ({{classInfo.Name}})GCHandleMarshaller.ToManaged(managed);
internal static IntPtr ToNative({{classInfo.Name}} managed) => GCHandleMarshaller.ToNative(managed);
internal static {{classInfo.Name}} ToManaged(IntPtr managed) => ({{classInfo.Name}})ManagedHandleMarshaller.ToManaged(managed);
internal static IntPtr ToNative({{classInfo.Name}} managed) => ManagedHandleMarshaller.ToNative(managed);
#pragma warning restore 1591
}
""").Split(new char[] { '\n' })));
@@ -1465,41 +1465,41 @@ namespace Flax.Build.Bindings
if (fieldInfo.Type.IsObjectRef)
{
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? ({fieldInfo.Type.GenericArgs[0].Type})GCHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
toNativeContent.Append($"managed.{fieldInfo.Name} != null ? GCHandle.ToIntPtr(GCHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? ({fieldInfo.Type.GenericArgs[0].Type})ManagedHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
toNativeContent.Append($"managed.{fieldInfo.Name} != null ? ManagedHandle.ToIntPtr(ManagedHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
// Permanent ScriptingObject handle is passed from native side, do not release it
//freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
//freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
}
else if (fieldInfo.Type.Type == "ScriptingObject")
{
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? (FlaxEngine.Object)GCHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
toNativeContent.Append($"managed.{fieldInfo.Name} != null ? GCHandle.ToIntPtr(GCHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? (FlaxEngine.Object)ManagedHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
toNativeContent.Append($"managed.{fieldInfo.Name} != null ? ManagedHandle.ToIntPtr(ManagedHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
// Permanent ScriptingObject handle is passed from native side, do not release it
//freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
//freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
}
else if (fieldInfo.Type.IsPtr && originalType != "IntPtr" && !originalType.EndsWith("*"))
{
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? ({originalType})GCHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
toNativeContent.Append($"managed.{fieldInfo.Name} != null ? GCHandle.ToIntPtr(GCHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? ({originalType})ManagedHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
toNativeContent.Append($"managed.{fieldInfo.Name} != null ? ManagedHandle.ToIntPtr(ManagedHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
// Permanent ScriptingObject handle is passed from native side, do not release it
//freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
//freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
}
else if (fieldInfo.Type.Type == "Dictionary")
{
string dictionaryArgs = String.Join(", ",
fieldInfo.Type.GenericArgs.Select(x => CSharpNativeToManagedBasicTypes.ContainsKey(x.Type) ? CSharpNativeToManagedBasicTypes[x.Type] : x.Type).ToArray());
toManagedContent.Append(
$"managed.{fieldInfo.Name} != IntPtr.Zero ? (System.Collections.Generic.{fieldInfo.Type.Type}<{dictionaryArgs}>)GCHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
$"managed.{fieldInfo.Name} != IntPtr.Zero ? (System.Collections.Generic.{fieldInfo.Type.Type}<{dictionaryArgs}>)ManagedHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
toNativeContent.Append(
$"GCHandle.ToIntPtr(GCHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak))");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
$"ManagedHandle.ToIntPtr(ManagedHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak))");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
}
else if (fieldInfo.Type.Type == "Array")
{
@@ -1509,34 +1509,34 @@ namespace Flax.Build.Bindings
// Marshal blittable array elements back to original non-blittable elements
string originalElementTypeMarshaller = originalElementType + "Marshaller";
string internalElementType = $"{originalElementTypeMarshaller}.{originalElementType}Internal";
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? NativeInterop.NativeArrayToManagedArray<{originalElementType}, {internalElementType}>(((ManagedArray)GCHandle.FromIntPtr(managed.{fieldInfo.Name}).Target).GetSpan<{internalElementType}>(), {originalElementTypeMarshaller}.ToManaged) : null");
toNativeContent.Append($"GCHandle.ToIntPtr(GCHandle.Alloc(ManagedArray.WrapNewArray(managed.{fieldInfo.Name}), GCHandleType.Weak))");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle handle = GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); Span<{internalElementType}> values = ((ManagedArray)handle.Target).GetSpan<{internalElementType}>(); foreach (var value in values) {{ {originalElementTypeMarshaller}.Free(value); }} ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle handle = GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); Span<{internalElementType}> values = ((ManagedArray)handle.Target).GetSpan<{internalElementType}>(); foreach (var value in values) {{ {originalElementTypeMarshaller}.Free(value); }} ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? NativeInterop.NativeArrayToManagedArray<{originalElementType}, {internalElementType}>(((ManagedArray)ManagedHandle.FromIntPtr(managed.{fieldInfo.Name}).Target).GetSpan<{internalElementType}>(), {originalElementTypeMarshaller}.ToManaged) : null");
toNativeContent.Append($"ManagedHandle.ToIntPtr(ManagedHandle.Alloc(ManagedArray.WrapNewArray(managed.{fieldInfo.Name}), GCHandleType.Weak))");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle handle = ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); Span<{internalElementType}> values = ((ManagedArray)handle.Target).GetSpan<{internalElementType}>(); foreach (var value in values) {{ {originalElementTypeMarshaller}.Free(value); }} ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle handle = ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); Span<{internalElementType}> values = ((ManagedArray)handle.Target).GetSpan<{internalElementType}>(); foreach (var value in values) {{ {originalElementTypeMarshaller}.Free(value); }} ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
}
else if (fieldInfo.Type.GenericArgs[0].IsObjectRef)
{
// Array elements passed as GCHandles
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? NativeInterop.GCHandleArrayToManagedArray<{originalElementType}>((ManagedArray)GCHandle.FromIntPtr(managed.{fieldInfo.Name}).Target) : null");
toNativeContent.Append($"managed.{fieldInfo.Name}?.Length > 0 ? GCHandle.ToIntPtr(GCHandle.Alloc(ManagedArray.WrapNewArray(NativeInterop.ManagedArrayToGCHandleArray(managed.{fieldInfo.Name})), GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle handle = GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); Span<IntPtr> ptrs = ((ManagedArray)handle.Target).GetSpan<IntPtr>(); foreach (var ptr in ptrs) {{ if (ptr != IntPtr.Zero) {{ GCHandle.FromIntPtr(ptr).Free(); }} }} ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle handle = GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); Span<IntPtr> ptrs = ((ManagedArray)handle.Target).GetSpan<IntPtr>(); foreach (var ptr in ptrs) {{ if (ptr != IntPtr.Zero) {{ GCHandle.FromIntPtr(ptr).Free(); }} }} ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? NativeInterop.GCHandleArrayToManagedArray<{originalElementType}>((ManagedArray)ManagedHandle.FromIntPtr(managed.{fieldInfo.Name}).Target) : null");
toNativeContent.Append($"managed.{fieldInfo.Name}?.Length > 0 ? ManagedHandle.ToIntPtr(ManagedHandle.Alloc(ManagedArray.WrapNewArray(NativeInterop.ManagedArrayToGCHandleArray(managed.{fieldInfo.Name})), GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle handle = ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); Span<IntPtr> ptrs = ((ManagedArray)handle.Target).GetSpan<IntPtr>(); foreach (var ptr in ptrs) {{ if (ptr != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(ptr).Free(); }} }} ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle handle = ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); Span<IntPtr> ptrs = ((ManagedArray)handle.Target).GetSpan<IntPtr>(); foreach (var ptr in ptrs) {{ if (ptr != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(ptr).Free(); }} }} ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
}
else
{
// Blittable array elements
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? ((ManagedArray)GCHandle.FromIntPtr(managed.{fieldInfo.Name}).Target).GetArray<{originalElementType}>() : null");
toNativeContent.Append($"managed.{fieldInfo.Name}?.Length > 0 ? GCHandle.ToIntPtr(GCHandle.Alloc(ManagedArray.WrapNewArray(managed.{fieldInfo.Name}), GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle handle = GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle handle = GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? ((ManagedArray)ManagedHandle.FromIntPtr(managed.{fieldInfo.Name}).Target).GetArray<{originalElementType}>() : null");
toNativeContent.Append($"managed.{fieldInfo.Name}?.Length > 0 ? ManagedHandle.ToIntPtr(ManagedHandle.Alloc(ManagedArray.WrapNewArray(managed.{fieldInfo.Name}), GCHandleType.Weak)) : IntPtr.Zero");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle handle = ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle handle = ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}); ((ManagedArray)handle.Target).Free(); handle.Free(); }}");
}
}
else if (fieldInfo.Type.Type == "Version")
{
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? ({originalType})GCHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
toNativeContent.Append($"GCHandle.ToIntPtr(GCHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak))");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ GCHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
toManagedContent.Append($"managed.{fieldInfo.Name} != IntPtr.Zero ? ({originalType})ManagedHandle.FromIntPtr(managed.{fieldInfo.Name}).Target : null");
toNativeContent.Append($"ManagedHandle.ToIntPtr(ManagedHandle.Alloc(managed.{fieldInfo.Name}, GCHandleType.Weak))");
freeContents.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
freeContents2.AppendLine($"if (unmanaged.{fieldInfo.Name} != IntPtr.Zero) {{ ManagedHandle.FromIntPtr(unmanaged.{fieldInfo.Name}).Free(); }}");
}
else if (originalType == "string")
{
@@ -1930,9 +1930,9 @@ namespace Flax.Build.Bindings
contents.Append(indent).AppendLine($"public static class {marshallerName}");
contents.Append(indent).AppendLine("{");
contents.AppendLine("#pragma warning disable 1591");
contents.Append(indent).Append(" ").AppendLine($"internal static {interfaceInfo.Name} ConvertToManaged(IntPtr unmanaged) => ({interfaceInfo.Name})GCHandleMarshaller.ConvertToManaged(unmanaged);");
contents.Append(indent).Append(" ").AppendLine($"internal static IntPtr ConvertToUnmanaged({interfaceInfo.Name} managed) => GCHandleMarshaller.ConvertToUnmanaged(managed);");
contents.Append(indent).Append(" ").AppendLine("internal static void Free(IntPtr unmanaged) => GCHandleMarshaller.Free(unmanaged);");
contents.Append(indent).Append(" ").AppendLine($"internal static {interfaceInfo.Name} ConvertToManaged(IntPtr unmanaged) => ({interfaceInfo.Name})ManagedHandleMarshaller.ConvertToManaged(unmanaged);");
contents.Append(indent).Append(" ").AppendLine($"internal static IntPtr ConvertToUnmanaged({interfaceInfo.Name} managed) => ManagedHandleMarshaller.ConvertToUnmanaged(managed);");
contents.Append(indent).Append(" ").AppendLine("internal static void Free(IntPtr unmanaged) => ManagedHandleMarshaller.Free(unmanaged);");
contents.AppendLine("#pragma warning restore 1591");
contents.Append(indent).AppendLine("}");
}